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Rooth K, Sundberg K, Gustavell T, Langius-Eklöf A, Gellerstedt L. Symptoms and need for individualised support during the first year after primary treatment for breast cancer-A qualitative study. J Clin Nurs 2024; 33:2298-2308. [PMID: 38304937 DOI: 10.1111/jocn.17045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 12/07/2023] [Accepted: 01/22/2024] [Indexed: 02/03/2024]
Abstract
BACKGROUND The survival rate among patients with breast cancer is high. It is well described that after primary treatment patients may experience symptoms and concerns but the needs and resources during the first year to manage everyday life are not well described. AIM To describe experiences of symptom distress, needs and support during the first year after primary treatment for breast cancer from the perspectives of patients and healthcare professionals. DESIGN Qualitative descriptive. METHODS Data collection through individual interviews with patients (n = 17) and a focus group interview with healthcare professionals (n = 7). Data was analysed using thematic analysis and resulted in three themes. RESULTS The first theme, 'Struggling with symptoms and changes in everyday life' shows how symptoms and concerns interfered with the everyday life of patients and in some situations even impeded them. Patients try to adapt to their new situation by creating new routines and managing symptoms through self-care. The second theme, 'Adaption in a period of uncertainty' describes thoughts about cancer recurrence and doubts about continuing with the endocrine therapy if symptoms prolong. In the third theme, 'Support and need for individualized follow-up care' healthcare professionals described that they provide support by being available and by giving both verbal and written information. Patients expressed that the information could be too general and voiced a need for more individually tailored support. CONCLUSION During the first year after primary treatment, patients with breast cancer describe how they try to manage by themselves, but express both unmet needs and a wish for extended and more individually tailored support. The healthcare professionals recognised that patients lack a structured plan for the first year and the need for continued support. This stresses a need for development of care models with special consideration towards individualised support after breast cancer treatment. NO PATIENT OR PUBLIC CONTRIBUTION There was no patient or public involvement in the design or conduct of the study. The interview study was not considered to benefit from involving patients or healthcare professionals when designing the interview guides as they were developed through literature and previous research of patients treated for breast cancer.
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Affiliation(s)
- Kristina Rooth
- Department of Neurobiology, Care Sciences and Society, Division of Nursing, Karolinska Institutet, Stockholm, Sweden
| | - Kay Sundberg
- Department of Neurobiology, Care Sciences and Society, Division of Nursing, Karolinska Institutet, Stockholm, Sweden
| | - Tina Gustavell
- Department of Neurobiology, Care Sciences and Society, Division of Nursing, Karolinska Institutet, Stockholm, Sweden
- Department of Upper Abdominal Diseases, Karolinska University Hospital, Cancer Theme, Stockholm, Sweden
| | - Ann Langius-Eklöf
- Department of Neurobiology, Care Sciences and Society, Division of Nursing, Karolinska Institutet, Stockholm, Sweden
| | - Linda Gellerstedt
- Department of Neurobiology, Care Sciences and Society, Division of Nursing, Karolinska Institutet, Stockholm, Sweden
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Eriksson C, Sun J, Bryder M, Bröms G, Everhov ÅH, Forss A, Jernberg T, Ludvigsson JF, Olén O. Impact of inflammatory bowel disease on the risk of acute coronary syndrome: A Swedish Nationwide Cohort Study. Aliment Pharmacol Ther 2024; 59:1122-1133. [PMID: 38425022 DOI: 10.1111/apt.17932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 11/21/2023] [Accepted: 02/20/2024] [Indexed: 03/02/2024]
Abstract
BACKGROUND There are conflicting data on the risk of acute coronary syndrome (ACS) in patients with inflammatory bowel disease (IBD). Only a few previous reports include patients diagnosed during the last decade. AIM To assess and compare the risk of ACS between patients with IBD and the general population. METHODS In this cohort study, we used nationwide registers to identify patients diagnosed with IBD in Sweden 2003-2021. Every patient was matched by birth year, sex, calendar year and area of residence with up to 10 general population comparators. The primary outcome was incident ACS. We used semi-parametric Cox proportional hazard models to estimate hazard ratios (HRs). RESULTS We identified 76,517 patients with IBD (Crohn's disease [CD], N = 22,732; ulcerative colitis [UC], N = 42,194 and IBD-unclassified, N = 11,591) and 757,141 comparators. During a median follow-up of 8 years, 2546 patients with IBD (37.5/10,000 person-years) were diagnosed with ACS compared with 19,598 (28.0/10,000 person-years) among comparators (HR 1.30; 95% confidence interval 1.24-1.35) after adjustments for confounding factors, and approximately one extra case of ACS in 100 IBD patients followed for 10 years. The highest HRs for ACS were in patients with elderly onset IBD (≥60 years) and among patients with CD or UC with extra-intestinal manifestations. No increased HRs were observed in patients diagnosed with IBD before the age of 40. CONCLUSION In this contemporary cohort of patients with IBD, exposed to modern IBD care, there was an increased risk for ACS compared with individuals from the general population.
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Affiliation(s)
- Carl Eriksson
- Department of Gastroenterology, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
- Clinical Epidemiology Division, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
| | - Jiangwei Sun
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Matti Bryder
- Clinical Epidemiology Division, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
| | - Gabriella Bröms
- Clinical Epidemiology Division, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
- Division of Gastroenterology, Department of Specialist Medicine, Danderyd Hospital, Stockholm, Sweden
| | - Åsa H Everhov
- Clinical Epidemiology Division, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
- Department of Clinical Science and Education Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
| | - Anders Forss
- Clinical Epidemiology Division, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
- Gastroenterology Unit, Department of Gastroenterology, Dermatovenereology and Rheumatology, Karolinska University Hospital, Stockholm, Sweden
| | - Tomas Jernberg
- Department of Clinical Sciences, Danderyd University Hospital, Karolinska Institutet, Stockholm, Sweden
| | - Jonas F Ludvigsson
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
- Department of Paediatrics, Örebro University Hospital, Örebro, Sweden
- Division of Digestive and Liver Disease, Department of Medicine, Columbia University Medical Center, New York, New York, USA
| | - Ola Olén
- Clinical Epidemiology Division, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
- Department of Clinical Science and Education Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
- Sachs' Children and Youth Hospital, Stockholm South General Hospital, Stockholm, Sweden
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Célind J, Bygdell M, Bramsved R, Martikainen J, Ohlsson C, Kindblom JM. Low birthweight and overweight during childhood and young adulthood and the risk of type 2 diabetes in men: a population-based cohort study. Diabetologia 2024; 67:874-884. [PMID: 38386069 PMCID: PMC10954927 DOI: 10.1007/s00125-024-06101-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 01/15/2024] [Indexed: 02/23/2024]
Abstract
AIMS/HYPOTHESIS This study aimed to determine the relative contributions of low birthweight and overweight during childhood and young adulthood to the risk of type 2 diabetes in men. METHODS We included 34,231 men born between1945 and 1961 from the population-based BMI Epidemiology Study (BEST) Gothenburg with data on birthweight and overweight status in childhood (8 years, BMI >17.9 kg/m2) and young adulthood (20 years, BMI >25 kg/m2). Participants were followed from age 30 years until 31 December 2019. Information on type 2 diabetes diagnoses was retrieved from Swedish national registers. HRs and 95% CIs for the risk of early (≤59.4 years) and late (>59.4 years) type 2 diabetes were estimated using Cox proportional hazards regression. RESULTS During follow-up, a total of 2733 cases of type 2 diabetes were diagnosed. Birthweight below the median (<3.6 kg) and overweight at age 20 (BMI >25 kg/m2), but not overweight at age 8 (BMI >17.9 kg/m2), were associated with an increased risk of early and late type 2 diabetes. Of note, a birthweight below the median followed by overweight at age 20 years was associated with a substantially increased risk of early type 2 diabetes (HR 6.07, 95% CI 5.08, 7.27), and a low birthweight (≤2.5 kg) combined with overweight at age 20 years was associated with a massive risk of early type 2 diabetes (HR 9.94, 95% CI 6.57, 15.05). CONCLUSIONS/INTERPRETATION Low birthweight and overweight in young adulthood are the major developmental determinants of adult type 2 diabetes risk in men. They contribute in an additive manner to the risk of type 2 diabetes. To reduce the risk of type 2 diabetes, young adult overweight should be avoided, especially in boys with a low birthweight. DATA AVAILABILITY The SPSS analysis code, the R analysis code and a data dictionary have been made available in an online repository ( https://osf.io/bx2as/ ).
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Affiliation(s)
- Jimmy Célind
- Sahlgrenska Osteoporosis Centre, Centre for Bone and Arthritis Research, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden.
- Department of Pediatrics, Institute of Clinical Sciences, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden.
| | - Maria Bygdell
- Sahlgrenska Osteoporosis Centre, Centre for Bone and Arthritis Research, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Rebecka Bramsved
- Sahlgrenska Osteoporosis Centre, Centre for Bone and Arthritis Research, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Jari Martikainen
- Bioinformatics and Data Centre, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Claes Ohlsson
- Sahlgrenska Osteoporosis Centre, Centre for Bone and Arthritis Research, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
- Department of Drug Treatment, Sahlgrenska University Hospital, Region Västra Götaland, Gothenburg, Sweden
| | - Jenny M Kindblom
- Sahlgrenska Osteoporosis Centre, Centre for Bone and Arthritis Research, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
- Department of Drug Treatment, Sahlgrenska University Hospital, Region Västra Götaland, Gothenburg, Sweden
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Hirschberg AL. Hyperandrogenism and Cardiometabolic Risk in Pre- and Postmenopausal Women-What Is the Evidence? J Clin Endocrinol Metab 2024; 109:1202-1213. [PMID: 37886900 PMCID: PMC11031217 DOI: 10.1210/clinem/dgad590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Indexed: 10/28/2023]
Abstract
Hyperandrogenism in women, such as polycystic ovary syndrome, ovarian hyperthecosis, congenital adrenal hyperplasia, and androgen-secreting tumors, are all associated with increased prevalence of cardiovascular risk factors that include type 2 diabetes, hypertension, dyslipidemia, and metabolic syndrome. However, it is not clear whether this also implies enhanced risk of cardiovascular disease and mortality. Furthermore, the involvement of obesity and menopausal status for cardiometabolic risk in these women has not been elucidated. Based on the most recent systematic reviews and meta-analyses, this review summarizes the latest scientific evidence. To conclude, hyperandrogenism in premenopausal women is associated with enhanced prevalence of cardiovascular risk factors, as well as increased risk of cardiovascular disease and mortality, independently of body mass index. In contrast, elevated cardiovascular risk factors and increased risk of myocardial infarction and stroke in hyperandrogenic postmenopausal women are dependent on obesity. Furthermore, the overall risk of cardiovascular disease and coronary artery disease in hyperandrogenic postmenopausal women is similar to controls. The reason for a reduced cardiometabolic risk after menopause in hyperandrogenic women compared to nonhyperandrogenic women is not clear. It can be speculated that the difference in endocrine balance and metabolic status between women with and without hyperandrogenism might decrease after menopause because hyperandrogenism usually improves with age, whereas menopausal transition itself is associated with androgen dominance and abdominal obesity. Although we have gained increased knowledge about cardiometabolic risks in women with hyperandrogenism, it must be acknowledged that the quality of data is overall low. More research is needed, especially longer and larger follow-up studies in women with hyperandrogenism of different etiologies and phenotypes.
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Affiliation(s)
- Angelica Lindén Hirschberg
- Department of Women's and Children's Health, Karolinska Institutet and Department of Gynecology and Reproductive Medicine, Karolinska University Hospital, SE-171 76 Stockholm, Sweden
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Giese D, Li H, Liu W, Staxäng K, Hodik M, Ladak HM, Agrawal S, Schrott-Fischer A, Glueckert R, Rask-Andersen H. Microanatomy of the human tunnel of Corti structures and cochlear partition-tonotopic variations and transcellular signaling. J Anat 2024. [PMID: 38613211 DOI: 10.1111/joa.14045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 03/22/2024] [Accepted: 03/23/2024] [Indexed: 04/14/2024] Open
Abstract
Auditory sensitivity and frequency resolution depend on the optimal transfer of sound-induced vibrations from the basilar membrane (BM) to the inner hair cells (IHCs), the principal auditory receptors. There remains a paucity of information on how this is accomplished along the frequency range in the human cochlea. Most of the current knowledge is derived either from animal experiments or human tissue processed after death, offering limited structural preservation and optical resolution. In our study, we analyzed the cytoarchitecture of the human cochlear partition at different frequency locations using high-resolution microscopy of uniquely preserved normal human tissue. The results may have clinical implications and increase our understanding of how frequency-dependent acoustic vibrations are carried to human IHCs. A 1-micron-thick plastic-embedded section (mid-modiolar) from a normal human cochlea uniquely preserved at lateral skull base surgery was analyzed using light and transmission electron microscopy (LM, TEM). Frequency locations were estimated using synchrotron radiation phase-contrast imaging (SR-PCI). Archival human tissue prepared for scanning electron microscopy (SEM) and super-resolution structured illumination microscopy (SR-SIM) were also used and compared in this study. Microscopy demonstrated great variations in the dimension and architecture of the human cochlear partition along the frequency range. Pillar cell geometry was closely regulated and depended on the reticular lamina slope and tympanic lip angle. A type II collagen-expressing lamina extended medially from the tympanic lip under the inner sulcus, here named "accessory basilar membrane." It was linked to the tympanic lip and inner pillar foot, and it may contribute to the overall compliance of the cochlear partition. Based on the findings, we speculate on the remarkable microanatomic inflections and geometric relationships which relay different sound-induced vibrations to the IHCs, including their relevance for the evolution of human speech reception and electric stimulation with auditory implants. The inner pillar transcellular microtubule/actin system's role of directly converting vibration energy to the IHC cuticular plate and ciliary bundle is highlighted.
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Affiliation(s)
- Dina Giese
- Department of Surgical Sciences, Otorhinolaryngology and Head and Neck Surgery, Uppsala University, Uppsala, Sweden
| | - Hao Li
- Department of Surgical Sciences, Otorhinolaryngology and Head and Neck Surgery, Uppsala University, Uppsala, Sweden
| | - Wei Liu
- Department of Surgical Sciences, Otorhinolaryngology and Head and Neck Surgery, Uppsala University, Uppsala, Sweden
| | - Karin Staxäng
- The Rudbeck TEM Laboratory, BioVis Platform, Uppsala University, Uppsala, Sweden
| | - Monika Hodik
- The Rudbeck TEM Laboratory, BioVis Platform, Uppsala University, Uppsala, Sweden
| | - Hanif M Ladak
- Department of Medical Biophysics, Western University, London, Ontario, Canada
- Department of Electrical and Computer Engineering, Western University, London, Ontario, Canada
| | - Sumit Agrawal
- Department of Otolaryngology-Head and Neck Surgery, Western University, London, Ontario, Canada
| | - Anneliese Schrott-Fischer
- Inner Ear Laboratory, Department of Otorhinolaryngology, Medical University Innsbruck, Innsbruck, Austria
| | - Rudolf Glueckert
- Inner Ear Laboratory, Department of Otorhinolaryngology, Medical University Innsbruck, Innsbruck, Austria
| | - Helge Rask-Andersen
- Department of Surgical Sciences, Otorhinolaryngology and Head and Neck Surgery, Uppsala University, Uppsala, Sweden
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Alvarado Obando M, Rey-Varela D, Cava F, Dörr T. Genetic interaction mapping reveals functional relationships between peptidoglycan endopeptidases and carboxypeptidases. PLoS Genet 2024; 20:e1011234. [PMID: 38598601 PMCID: PMC11034669 DOI: 10.1371/journal.pgen.1011234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 04/22/2024] [Accepted: 03/25/2024] [Indexed: 04/12/2024] Open
Abstract
Peptidoglycan (PG) is the main component of the bacterial cell wall; it maintains cell shape while protecting the cell from internal osmotic pressure and external environmental challenges. PG synthesis is essential for bacterial growth and survival, and a series of PG modifications are required to allow expansion of the sacculus. Endopeptidases (EPs), for example, cleave the crosslinks between adjacent PG strands to allow the incorporation of newly synthesized PG. EPs are collectively essential for bacterial growth and must likely be carefully regulated to prevent sacculus degradation and cell death. However, EP regulation mechanisms are poorly understood. Here, we used TnSeq to uncover novel EP regulators in Vibrio cholerae. This screen revealed that the carboxypeptidase DacA1 (PBP5) alleviates EP toxicity. dacA1 is essential for viability on LB medium, and this essentiality was suppressed by EP overexpression, revealing that EP toxicity both mitigates, and is mitigated by, a defect in dacA1. A subsequent suppressor screen to restore viability of ΔdacA1 in LB medium identified hypomorphic mutants in the PG synthesis pathway, as well as mutations that promote EP activation. Our data thus reveal a more complex role of DacA1 in maintaining PG homeostasis than previously assumed.
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Affiliation(s)
- Manuela Alvarado Obando
- Department of Microbiology, Cornell University, Ithaca, New York, United States of America
- Weill Institute for Cell and Molecular Biology, Cornell University, Ithaca, New York, United States of America
| | - Diego Rey-Varela
- The Laboratory for Molecular Infection Medicine Sweden (MIMS), Umeå Center for Microbial Research (UCMR), Science for Life Laboratory (SciLifeLab), Department of Molecular Biology, Umeå University, Umeå, Sweden
| | - Felipe Cava
- The Laboratory for Molecular Infection Medicine Sweden (MIMS), Umeå Center for Microbial Research (UCMR), Science for Life Laboratory (SciLifeLab), Department of Molecular Biology, Umeå University, Umeå, Sweden
| | - Tobias Dörr
- Department of Microbiology, Cornell University, Ithaca, New York, United States of America
- Weill Institute for Cell and Molecular Biology, Cornell University, Ithaca, New York, United States of America
- Cornell Institute for Host-Microbe Interactions and Disease (CIHMID), Ithaca, New York, United States of America
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7
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Shim KH, Kim D, Kang MJ, Pyun J, Park YH, Youn YC, Park KW, Suk K, Lee H, Gomes BF, Zetterberg H, An SSA, Kim S. Subsequent correlated changes in complement component 3 and amyloid beta oligomers in the blood of patients with Alzheimer's disease. Alzheimers Dement 2024; 20:2731-2741. [PMID: 38411315 PMCID: PMC11032549 DOI: 10.1002/alz.13734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 12/05/2023] [Accepted: 01/19/2024] [Indexed: 02/28/2024]
Abstract
INTRODUCTION Alzheimer's disease (AD) involves the complement cascade, with complement component 3 (C3) playing a key role. However, the relationship between C3 and amyloid beta (Aβ) in blood is limited. METHODS Plasma C3 and Aβ oligomerization tendency (AβOt) were measured in 35 AD patients and 62 healthy controls. Correlations with cerebrospinal fluid (CSF) biomarkers, cognitive impairment, and amyloid positron emission tomography (PET) were analyzed. Differences between biomarkers were compared in groups classified by concordances of biomarkers. RESULTS Plasma C3 and AβOt were elevated in AD patients and in CSF or amyloid PET-positive groups. Weak positive correlation was found between C3 and AβOt, while both had strong negative correlations with CSF Aβ42 and cognitive performance. Abnormalities were observed for AβOt and CSF Aβ42 followed by C3 changes. DISCUSSION Increased plasma C3 in AD are associated with amyloid pathology, possibly reflecting a defense response for Aβ clearance. Further studies on Aβ-binding proteins will enhance understanding of Aβ mechanisms in blood.
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Affiliation(s)
- Kyu Hwan Shim
- Department of Bionano TechnologyGachon UniversitySeongnamRepublic of Korea
| | - Danyeong Kim
- Department of Bionano TechnologyGachon UniversitySeongnamRepublic of Korea
| | - Min Ju Kang
- Department of NeurologyVeterans Medical Research InstituteVeterans Health Service Medical CenterSeoulRepublic of Korea
| | - Jung‐Min Pyun
- Department of NeurologySoonchunhyang University Seoul HospitalSoonchunhyang University College of MedicineSeoulRepublic of Korea
| | - Young Ho Park
- Department of NeurologySeoul National University College of Medicine and Clinical Neuroscience CenterSeoul National University Bundang HospitalSeongnamRepublic of Korea
| | - Young Chul Youn
- Department of NeurologyChung‐Ang University College of MedicineSeoulRepublic of Korea
| | - Kyung Won Park
- Department of NeurologyDong‐A University College of Medicine and Institute of Convergence Bio‐HealthBusanRepublic of Korea
| | - Kyoungho Suk
- Department of PharmacologyKyungpook National University School of MedicineDaeguRepublic of Korea
| | - Ho‐Won Lee
- Department of NeurologyKyungpook National University School of MedicineDaeguRepublic of Korea
| | - Bárbara Fernandes Gomes
- Department of Psychiatry and NeurochemistryInstitute of Neuroscience & Physiologythe Sahlgrenska Academy at the University of GothenburgMölndalSweden
| | - Henrik Zetterberg
- Department of Psychiatry and NeurochemistryInstitute of Neuroscience & Physiologythe Sahlgrenska Academy at the University of GothenburgMölndalSweden
- Clinical Neurochemistry LaboratorySahlgrenska University HospitalMölndalSweden
- Department of Neurodegenerative DiseaseUCL Institute of Neurology, Queen SquareLondonUK
- UK Dementia Research Institute at UCLLondonUK
- Hong Kong Center for Neurodegenerative Diseases, Clear Water BayHong KongChina
- Wisconsin Alzheimer's Disease Research CenterUniversity of Wisconsin School of Medicine and Public HealthUniversity of Wisconsin–MadisonMadisonWisconsinUSA
| | - Seong Soo A. An
- Department of Bionano TechnologyGachon UniversitySeongnamRepublic of Korea
| | - SangYun Kim
- Department of NeurologySeoul National University College of Medicine and Clinical Neuroscience CenterSeoul National University Bundang HospitalSeongnamRepublic of Korea
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Marttila P, Bonagas N, Chalkiadaki C, Stigsdotter H, Schelzig K, Shen J, Farhat CM, Hondema A, Albers J, Wiita E, Rasti A, Warpman Berglund U, Slipicevic A, Mortusewicz O, Helleday T. The one-carbon metabolic enzyme MTHFD2 promotes resection and homologous recombination after ionizing radiation. Mol Oncol 2024. [PMID: 38533616 DOI: 10.1002/1878-0261.13645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 02/23/2024] [Accepted: 03/18/2024] [Indexed: 03/28/2024] Open
Abstract
The one-carbon metabolism enzyme bifunctional methylenetetrahydrofolate dehydrogenase/cyclohydrolase 2 (MTHFD2) is among the most overexpressed proteins across tumors and is widely recognized as a promising anticancer target. While MTHFD2 is mainly described as a mitochondrial protein, a new nuclear function is emerging. Here, we observe that nuclear MTHFD2 protein levels and association with chromatin increase following ionizing radiation (IR) in an ataxia telangiectasia mutated (ATM)- and DNA-dependent protein kinase (DNA-PK)-dependent manner. Furthermore, repair of IR-induced DNA double-strand breaks (DSBs) is delayed upon MTHFD2 knockdown, suggesting a role for MTHFD2 in DSB repair. In support of this, we observe impaired recruitment of replication protein A (RPA), reduced resection, decreased IR-induced DNA repair protein RAD51 homolog 1 (RAD51) levels and impaired homologous recombination (HR) activity in MTHFD2-depleted cells following IR. In conclusion, we identify a key role for MTHFD2 in HR repair and describe an interdependency between MTHFD2 and HR proficiency that could potentially be exploited for cancer therapy.
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Affiliation(s)
- Petra Marttila
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institutet, Solna, Sweden
| | - Nadilly Bonagas
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institutet, Solna, Sweden
| | - Christina Chalkiadaki
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institutet, Solna, Sweden
| | - Hannah Stigsdotter
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institutet, Solna, Sweden
| | - Korbinian Schelzig
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institutet, Solna, Sweden
| | - Jianyu Shen
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institutet, Solna, Sweden
| | - Crystal M Farhat
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institutet, Solna, Sweden
| | - Amber Hondema
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institutet, Solna, Sweden
| | - Julian Albers
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institutet, Solna, Sweden
| | - Elisée Wiita
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institutet, Solna, Sweden
| | - Azita Rasti
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institutet, Solna, Sweden
| | - Ulrika Warpman Berglund
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institutet, Solna, Sweden
| | - Ana Slipicevic
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institutet, Solna, Sweden
- One-carbon Therapeutics AB, Stockholm, Sweden
| | - Oliver Mortusewicz
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institutet, Solna, Sweden
| | - Thomas Helleday
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institutet, Solna, Sweden
- Weston Park Cancer Centre, Department of Oncology and Metabolism, The Medical School, University of Sheffield, UK
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Peolsson A, Nilsing Strid E, Peterson G. Novel Internet Support for Neck-Specific Rehabilitation Improves Work-Related Outcomes to the Same Extent as Extensive Visits to a Physiotherapy Clinic in Individuals with Chronic Whiplash-Associated Disorders: A Prospective Randomised Study. J Occup Rehabil 2024:10.1007/s10926-024-10176-0. [PMID: 38526764 DOI: 10.1007/s10926-024-10176-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 02/03/2024] [Indexed: 03/27/2024]
Abstract
PURPOSE To address the current lack of information about work-related factors for individuals with whiplash-associated disorders (WAD) we investigated the effectiveness of 3 months of neck-specific rehabilitation with internet support in combination with four physiotherapy visits (NSEIT) compared to the same exercises performed twice a week (24 times) at a physiotherapy clinic (NSE). METHODS This is a prospective, multicentre, randomised controlled trial regarding secondary outcomes of work-related factors in 140 individuals with chronic moderate/severe WAD with 3- and 15-month follow-up. RESULTS There were no group differences between NSE and NSEIT in the Work Ability Scale or work subscales of the Neck Disability Index, Whiplash Disability Questionnaire or Fear Avoidance Beliefs Questionnaire (FABQ-work). Both groups improved in all work-related outcome measures, except for FABQ-work after the 3-month intervention and results were maintained at the 15-month follow-up. CONCLUSIONS Despite fewer physiotherapy visits for the NSEIT group, there were no group differences between NSEIT and NSE, with improvements in most work-related measures maintained at the 15-month follow-up. The results of the present study are promising for those with remaining work ability problems after a whiplash injury. Protocol registered before data collection started: clinicaltrials.gov NCT03022812.
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Affiliation(s)
- Anneli Peolsson
- Occupational and Environmental Medicine Centre, Department of Health, Medicine and Caring Sciences, Unit of Clinical Medicine, Linköping University, 58185, Linköping, Sweden.
- Department of Health, Medicine and Caring Sciences, Unit of Physiotherapy, Linköping University, Linköping, Sweden.
| | - Emma Nilsing Strid
- Faculty of Medicine and Health, University Health Care Research Centre, Örebro University, Örebro, Sweden
| | - Gunnel Peterson
- Department of Health, Medicine and Caring Sciences, Unit of Physiotherapy, Linköping University, Linköping, Sweden
- Centre for Clinical Research Sörmland, Uppsala University, Uppsala, Sweden
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10
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Shang Y, Grip ET, Modica A, Skröder H, Ström O, Ntanios F, Gudbjörnsdottir S, Hagström H. Metabolic Syndrome Traits Increase the Risk of Major Adverse Liver Outcomes in Type 2 Diabetes. Diabetes Care 2024:dc231937. [PMID: 38498331 DOI: 10.2337/dc23-1937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 02/20/2024] [Indexed: 03/20/2024]
Abstract
OBJECTIVE Type 2 diabetes (T2D) increases the risk for major adverse liver outcomes (MALOs), including cirrhosis and its complications. Patients with T2D frequently have other traits of the metabolic syndrome (MetS). It remains uncertain whether there is a synergistic effect of accumulating MetS traits on future MALO risk. RESEARCH DESIGN AND METHODS Patients with T2D without a history of liver disease were identified from national registers in Sweden from 1998 to 2021. MetS traits included hypertension, low HDL level, hypertriglyceridemia, obesity, and albuminuria, in addition to T2D. MALO events were identified based on administrative coding from national registers until 31 October 2022. Data were analyzed using Cox regression models. RESULTS In total, 230,992 patients were identified (median age 64 years; 58% male), of whom 3,215 (1.39%) developed MALOs over a median follow-up of 9.9 years. Compared with patients with one MetS trait (only T2D) at baseline, those with more than one MetS trait had a higher rate of MALOs (adjusted hazard ratio [aHR] 2.33, 95% CI 1.53-3.54). The rate of MALOs increased progressively with increasing numbers of MetS traits at baseline (aHR 1.28 per added trait, 95% CI 1.23-1.33). During follow-up, patients who acquired additional MetS traits had a progressively higher rate of MALOs. The MetS trait with the largest association with incident MALOs was hypertension (aHR 2.06, 95% CI 1.57-2.71). CONCLUSIONS Having or acquiring additional traits of MetS increase the rate of progression to MALOs in patients with T2D. These results could be used to inform screening initiatives for liver disease.
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Affiliation(s)
- Ying Shang
- Department of Medicine, Huddinge, Karolinska Institutet, Stockholm, Sweden
| | - Emilie Toresson Grip
- Department of Medicine, Huddinge, Karolinska Institutet, Stockholm, Sweden
- Quantify Research, Stockholm, Sweden
| | | | | | - Oskar Ström
- Department of Medicine, Huddinge, Karolinska Institutet, Stockholm, Sweden
- Quantify Research, Stockholm, Sweden
| | | | - Soffia Gudbjörnsdottir
- Swedish National Diabetes Register
- Department of Molecular and Clinical Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Hannes Hagström
- Department of Medicine, Huddinge, Karolinska Institutet, Stockholm, Sweden
- Division of Hepatology, Department of Upper GI Diseases, Karolinska University Hospital, Stockholm, Sweden
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11
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Dikaiou P, Edqvist J, Lagergren J, Adiels M, Björck L, Rosengren A. Body mass index and risk of cancer in young women. Sci Rep 2024; 14:6245. [PMID: 38485791 PMCID: PMC10940279 DOI: 10.1038/s41598-024-56899-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 03/12/2024] [Indexed: 03/18/2024] Open
Abstract
It is unclear how increasing body mass index (BMI) influences risk of cancer in young women. We used data from the Medical Birth, Patient and Cause of Death registers collected between 1982 and 2014 to determine the risk of obesity-related cancer types, breast cancer, all cancer and cancer-related death in relation to BMI in 1,386,725 women, aged between 18 and 45 years, in Sweden. During a median follow-up of 16.3 years (IQR 7.7-23.5), 9808 women developed cancer. The hazard ratio (HR) of endometrial and ovarian cancer increased with higher BMI from 1.08 (95% CI 0.93-1.24) and 1.08 (95% CI 0.96-1.21) among women with BMI 22.5-< 25 to 2.33 (95% CI 1.92-2.83) and 1.48 (95% CI 1.24-1.77), respectively, among women with BMI ≥ 30. There were linear and positive associations between BMI and incident cancer in the ovary, colon, endometrium, pancreas, rectum, gallbladder, esophageal cancer and renal cell carcinoma, as well as death from obesity-related cancer forms. In conclusion, we found that elevated BMI in young women linearly associated with several obesity-related cancer forms, including death from these cancers.
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Affiliation(s)
- Pigi Dikaiou
- Department of Molecular and Clinical Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
- Sahlgrenska University Hospital/Sahlgrenska Hospital, Gothenburg, Sweden.
- Institute of Medicine, Department of Molecular and Clinical Medicine, Sahlgrenska Academy, University of Gothenburg Hospital/Östra, Diagnosvägen 11, 416 50, Gothenburg, Sweden.
| | - Jon Edqvist
- Department of Molecular and Clinical Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Sahlgrenska University Hospital/Sahlgrenska Hospital, Gothenburg, Sweden
| | - Jesper Lagergren
- Upper Gastrointestinal Surgery, Department of Molecular Medicine and Surgery, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
- School of Cancer and Pharmaceutical Sciences, King's College London, London, UK
| | - Martin Adiels
- Department of Molecular and Clinical Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Health Metrics Unit, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Lena Björck
- Department of Molecular and Clinical Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Sahlgrenska University Hospital/Östra Hospital, Gothenburg, Sweden
| | - Annika Rosengren
- Department of Molecular and Clinical Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Sahlgrenska University Hospital/Östra Hospital, Gothenburg, Sweden
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12
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Dobrescu SR, Dinkler L, Gillberg C, Gillberg C, Råstam M, Wentz E. Mental and physical health in children of women with a history of anorexia nervosa. Eur Child Adolesc Psychiatry 2024:10.1007/s00787-024-02393-y. [PMID: 38472414 DOI: 10.1007/s00787-024-02393-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 02/01/2024] [Indexed: 03/14/2024]
Abstract
Few studies have investigated the offspring of women with anorexia nervosa (AN). The aim of this study was to examine perinatal status, mental and physical health in the offspring of mothers with a history of AN. Fifty-one individuals with adolescent-onset AN and 51 matched controls (COMP) have been followed prospectively. Presently, 30 years after AN onset, at a mean age of 44 years, female participants who had given birth (nAN = 40, nCOMP = 40) were interviewed regarding psychiatric health in their offspring using the Developmental and Well-Being Assessment and the MINI International Neuropsychiatric Interview. In addition, information on the offspring's perinatal status, psychiatric- and physical health was obtained from the Swedish Medical Birth Register and The Swedish National Patient Register. Data regarding mental and physical health were available for 83 and 86 offspring in the AN and COMP groups, respectively. At birth, all of weight, length, head circumference and ponderal index were significantly reduced in the offspring of mothers with a history of AN. In adolescence, parental interviews indicated an overrepresentation of current psychiatric diagnoses in the offspring of mothers with AN. Compared with the offspring in the COMP group, endocrinological, immune and metabolic disorders were much more common in the offspring of the AN group. In conclusion, a history of AN increases the risk of worse perinatal outcome of the offspring. Later on, in childhood and adolescence, psychiatric and physical morbidity may be overrepresented in the offspring of women with AN.
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Affiliation(s)
- Sandra Rydberg Dobrescu
- Gillberg Neuropsychiatry Centre, Institute of Neuroscience and Physiology, University of Gothenburg, Gothenburg, Sweden.
| | - Lisa Dinkler
- Gillberg Neuropsychiatry Centre, Institute of Neuroscience and Physiology, University of Gothenburg, Gothenburg, Sweden
- Department of Medical Epidemiology and Biostatistics, Karolinska Institute, Stockholm, Sweden
| | - Carina Gillberg
- Gillberg Neuropsychiatry Centre, Institute of Neuroscience and Physiology, University of Gothenburg, Gothenburg, Sweden
| | - Christopher Gillberg
- Gillberg Neuropsychiatry Centre, Institute of Neuroscience and Physiology, University of Gothenburg, Gothenburg, Sweden
- Department of Child and Adolescent Psychiatry, University of Glasgow, Glasgow, UK
| | - Maria Råstam
- Gillberg Neuropsychiatry Centre, Institute of Neuroscience and Physiology, University of Gothenburg, Gothenburg, Sweden
- Department of Clinical Sciences Lund, Child and Adolescent Psychiatry, Lund University, Lund, Sweden
| | - Elisabet Wentz
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, University of Gothenburg, Gothenburg, Sweden
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13
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Sköld C, Jansson AK, Glimelius I. Malignant ovarian and testicular germ cell tumors: Common characteristics but different prognoses. J Intern Med 2024. [PMID: 38468475 DOI: 10.1111/joim.13778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/13/2024]
Abstract
Both ovarian and testicular germ cell tumors (GCTs) arise from the primordial germ cell and share many similarities. Both malignancies affect mainly young patients, show remarkable responsiveness to cisplatin-based therapy, and have an excellent prognosis, which also highlights the importance of minimizing long-term side effects. However, certain differences can be noted: The spreading of the disease differs, and the staging system and treatment recommendations are dissimilar. Moreover, the prognosis for ovarian GCTs is significantly inferior to that for testicular cancer, as exemplified in this review comparing the survival in Swedish patients diagnosed with testicular (1995-2022) and ovarian (1990-2018) GCTs. The 5-year overall survival in ovarian GCTs was 85.2%, versus 98.2% for testicular GCTs. How can this be explained? One reason may be the difference in knowledge, experience, and evidence because the incidence rate of testicular cancer is more than 15 times that of ovarian GCTs. Given the rarity of the disease in women and the lack of established guidelines, a comprehensive understanding of the disease and treatment decisions is challenging. The main objective of this review is to derive insights from testicular GCTs (seminoma and non-seminoma) by reviewing etiological, tumor biological, and clinical knowledge, and to thereafter suggest actions for ovarian GCTs based on this. We hypothesize that by adopting specific treatment strategies from testicular GCTs-including de-escalating adjuvant chemotherapy for low-risk patients and implementing more standardized and intensive treatment protocols in cases of relapse-we can improve the prognosis and minimize long-term side effects in ovarian GCT patients.
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Affiliation(s)
- Camilla Sköld
- Department of Immunology, Genetics and Pathology, Cancer Precision Medicine, Uppsala University, Uppsala, Sweden
| | - Anna K Jansson
- Department of Immunology, Genetics and Pathology, Cancer Precision Medicine, Uppsala University, Uppsala, Sweden
| | - Ingrid Glimelius
- Department of Immunology, Genetics and Pathology, Cancer Precision Medicine, Uppsala University, Uppsala, Sweden
- Department of Medicine, Clinical Epidemiology Unit, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
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14
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Torell A, Stockfelt M, Blennow K, Zetterberg H, Akhter T, Leonard D, Rönnblom L, Pihl S, Saleh M, Sjöwall C, Strevens H, Jönsen A, Bengtsson AA, Trysberg E, Majczuk Sennström M, Zickert A, Svenungsson E, Gunnarsson I, Bylund J, Jacobsson B, Rudin A, Lundell AC. Low CD4 + T cell count is related to specific anti-nuclear antibodies, IFNα protein positivity and disease activity in systemic lupus erythematosus pregnancy. Arthritis Res Ther 2024; 26:65. [PMID: 38459582 PMCID: PMC10924387 DOI: 10.1186/s13075-024-03301-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 03/01/2024] [Indexed: 03/10/2024] Open
Abstract
BACKGROUND Lymphopenia, autoantibodies and activation of the type I interferon (IFN) system are common features in systemic lupus erythematosus (SLE). We speculate whether lymphocyte subset counts are affected by pregnancy and if they relate to autoantibody profiles and/or IFNα protein in SLE pregnancy. METHODS Repeated blood samples were collected during pregnancy from 80 women with SLE and 51 healthy controls (HC). Late postpartum samples were obtained from 19 of the women with SLE. Counts of CD4 + and CD8 + T cells, B cells and NK cells were measured by flow cytometry. Positivity for anti-nuclear antibodies (ANA) fine specificities (double-stranded DNA [dsDNA], Smith [Sm], ribonucleoprotein [RNP], chromatin, Sjögren's syndrome antigen A [SSA] and B [SSB]) and anti-phospholipid antibodies (cardiolipin [CL] and β2 glycoprotein I [β2GPI]) was assessed with multiplexed bead assay. IFNα protein concentration was quantified with Single molecule array (Simoa) immune assay. Clinical data were retrieved from medical records. RESULTS Women with SLE had lower counts of all lymphocyte subsets compared to HC throughout pregnancy, but counts did not differ during pregnancy compared to postpartum. Principal component analysis revealed that low lymphocyte subset counts differentially related to autoantibody profiles, cluster one (anti-dsDNA/anti-Sm/anti-RNP/anti-Sm/RNP/anti-chromatin), cluster two (anti-SSA/anti-SSB) and cluster three (anti-CL/anti-β2GPI), IFNα protein levels and disease activity. CD4 + T cell counts were lower in women positive to all ANA fine specificities in cluster one compared to those who were negative, and B cell numbers were lower in women positive for anti-dsDNA and anti-Sm compared to negative women. Moreover, CD4 + T cell and B cell counts were lower in women with moderate/high compared to no/low disease activity, and CD4 + T cell count was lower in IFNα protein positive relative to negative women. Finally, CD4 + T cell count was unrelated to treatment. CONCLUSION Lymphocyte subset counts are lower in SLE compared to healthy pregnancies, which seems to be a feature of the disease per se and not affected by pregnancy. Our results also indicate that low lymphocyte subset counts relate differentially to autoantibody profiles, IFNα protein levels and disease activity, which could be due to divergent disease pathways.
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Affiliation(s)
- Agnes Torell
- Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy at the University of Gothenburg, Guldhedsgatan 10A, 405 30, Gothenburg, Sweden.
| | - Marit Stockfelt
- Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy at the University of Gothenburg, Guldhedsgatan 10A, 405 30, Gothenburg, Sweden
- Rheumatology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Kaj Blennow
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden
- Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden
- Paris Brain Institute, ICM, Pitié-Salpêtrière Hospital, Sorbonne University, Paris, France
- Neurodegenerative Disorder Research Center, Division of Life Sciences and Medicine and Department of Neurology, Institute On Aging and Brain Disorders, University of Science and Technology of China and First Affiliated Hospital of USTC, Hefei, People's Republic of China
| | - Henrik Zetterberg
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden
- Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden
- Department of Neurodegenerative Disease, UCL Institute of Neurology, Queen Square, London, UK
- UK Dementia Research Institute at UCL, London, UK
- Hong Kong Center for Neurodegenerative Diseases, Clear Water Bay, Hong Kong, China
- Winsconsin Alzheimer's Disease Research Center, School of Medicine and Public Health, University of Wisconsin, University of Wisconsin-Madison, Madison, WI, USA
| | - Tansim Akhter
- Department of Women's and Children's Health, Section of Obstetrics and Gynecology, Uppsala University, Uppsala, Sweden
| | - Dag Leonard
- Department of Medical Sciences, Rheumatology, Uppsala University, Uppsala, Sweden
| | - Lars Rönnblom
- Department of Medical Sciences, Rheumatology, Uppsala University, Uppsala, Sweden
| | - Sofia Pihl
- Department of Obstetrics and Gynecology, Linköping University Hospital, Linköping, Sweden
- Department of Biomedical and Clinical Sciences, Division of Children's and Women's Health, Linköping University, Linköping, Sweden
| | - Muna Saleh
- Division of Inflammation and Infection, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Christopher Sjöwall
- Division of Inflammation and Infection, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Helena Strevens
- Department of Obstetrics and Gynecology, Institute of Clinical Sciences, Skåne University Hospital, Lund, Sweden
| | - Andreas Jönsen
- Department of Clinical Sciences Lund, Rheumatology, Lund University, Skåne University Hospital, Lund, Sweden
| | - Anders A Bengtsson
- Department of Clinical Sciences Lund, Rheumatology, Lund University, Skåne University Hospital, Lund, Sweden
| | - Estelle Trysberg
- Rheumatology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Maria Majczuk Sennström
- Department of Womens and Childrens Health, Division for Obstetrics and Gynecology, Karolinska University Hospital, Karolinska Institute, Stockholm, Sweden
| | - Agneta Zickert
- Division of Rheumatology, Department of Medicine Solna, Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden
| | - Elisabet Svenungsson
- Division of Rheumatology, Department of Medicine Solna, Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden
| | - Iva Gunnarsson
- Division of Rheumatology, Department of Medicine Solna, Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden
| | - Johan Bylund
- Department of Oral Microbiology and Immunology, Institute of Odontology, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Bo Jacobsson
- Department of Obstetrics and Gynecology, Sahlgrenska University Hospital, Gothenburg, Sweden
- Department of Obstetrics and Gynecology, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
- Department of Genetics and Bioinformatics, Division of Health Data and Digitalisation, Institute of Public Health, Oslo, Norway
| | - Anna Rudin
- Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy at the University of Gothenburg, Guldhedsgatan 10A, 405 30, Gothenburg, Sweden
| | - Anna-Carin Lundell
- Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy at the University of Gothenburg, Guldhedsgatan 10A, 405 30, Gothenburg, Sweden
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15
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Guo A, Ludvigsson J, Brantsæter AL, Klingberg S, Östensson M, Størdal K, Mårild K. Early-life diet and risk of inflammatory bowel disease: a pooled study in two Scandinavian birth cohorts. Gut 2024; 73:590-600. [PMID: 38290832 PMCID: PMC10958293 DOI: 10.1136/gutjnl-2023-330971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 12/23/2023] [Indexed: 02/01/2024]
Abstract
OBJECTIVE We assessed whether early-life diet quality and food intake frequencies were associated with subsequent IBD. DESIGN Prospectively recorded 1-year and 3-year questionnaires in children from the All Babies in Southeast Sweden and The Norwegian Mother, Father and Child Cohort Study were used to assess diet quality using a Healthy Eating Index and intake frequency of food groups. IBD was defined as >2 diagnoses in national patient registers. Cox regression yielded HRs adjusted (aHRs) for child's sex, parental IBD, origin, education level and maternal comorbidities. Cohort-specific results were pooled using a random-effects model. RESULTS During 1 304 433 person-years of follow-up, we followed 81 280 participants from birth through childhood and adolescence, whereof 307 were diagnosed with IBD. Compared with low diet quality, medium and high diet quality at 1 year of age were associated with a reduced risk of IBD (pooled aHR 0.75 (95% CI=0.58 to 0.98) and 0.75 (95% CI=0.56 to 1.00)). The pooled aHR per increase of category was 0.86 (0.74 to 0.99). Pooled aHR for children 1 year old with high versus low fish intake was 0.70 (95% CI=0.49 to 1.00) for IBD, and showed association with reduced risk of UC (pooled aHR=0.46; 95% CI=0.21, 0.99). Higher vegetable intake at 1 year was associated with a risk reduction in IBD. Intake of sugar-sweetened beverages was associated with an increased risk of IBD. Diet quality at 3 years was not associated with IBD. CONCLUSION In this Scandinavian birth cohort, high diet quality and fish intake in early life were associated with a reduced risk of IBD.
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Affiliation(s)
- Annie Guo
- Department of Pediatrics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Johnny Ludvigsson
- Division of Pediatrics, Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
- Crown Princess Victoria Children's Hospital, Region Östergötland, Linköping, Sweden
| | | | - Sofia Klingberg
- Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Malin Östensson
- Bioinformatics and Data Centre, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Ketil Størdal
- Department of Pediatric Research, Faculty of Medicine, University of Oslo, Oslo, Norway
- Children's Center, Oslo University Hospital, Oslo, Norway
| | - Karl Mårild
- Department of Pediatrics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Pediatric Gastroenterology, Queen Silvia Children's Hospital, Gothenburg, Sweden
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16
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Rassier DE, Månsson A. Mechanisms of myosin II force generation. Insights from novel experimental techniques and approaches. Physiol Rev 2024. [PMID: 38451233 DOI: 10.1152/physrev.00014.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 02/29/2024] [Indexed: 03/08/2024] Open
Abstract
Myosin II is a molecular motor that converts chemical energy derived from ATP hydrolysis into mechanical work. Myosin II isoforms are responsible for muscle contraction and a range of cell functions relying on the development of force and motion. When the motor attaches to actin, ATP is hydrolyzed, and inorganic phosphate (Pi) and ADP are released from its active site. These reactions are coordinated with changes in the structure of myosin, promoting the so called "power-stroke" that causes sliding of actin filaments. The general features of the myosin-actin interactions are well accepted, but there are critical issues that remain poorly understood, mostly due to technological limitations. In recent years, there has been a significant advance in structural, biochemical, and mechanical methods that have advanced the field considerably. New modeling approaches have also allowed researchers to understand actomyosin interactions at different levels of analysis. This paper reviews recent studies looking into the interaction between myosin II and actin filaments, which leads to the power stroke and force generation. It reviews studies conducted with single myosin molecules, myosins working in filaments, muscle sarcomeres, myofibrils and fibers. It also reviews the mathematical models that have been used to understand the mechanics of myosin II, in approaches focusing on single molecules to ensembles. Finally, it includes brief sections on translational aspects, and how changes in the myosin motor by mutations and/or posttranslational modifications may cause detrimental effects in diseases and aging, among other conditions, and how myosin II has become an emerging drug target.
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Affiliation(s)
- Dilson E Rassier
- Biomedical Physiology and Kinesiology, Simon Fraser University, Burnaby, Canada
| | - Alf Månsson
- Chemistry and Biomedical Sciences, Linnaeus University, Kalmar, Sweden
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17
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Sun W, Wu H, Peng Y, Zheng X, Li J, Zeng D, Tang P, Zhao M, Feng H, Li H, Liang Y, Su J, Chen X, Hökfelt T, He J. Heterosynaptic plasticity of the visuo-auditory projection requires cholecystokinin released from entorhinal cortex afferents. eLife 2024; 13:e83356. [PMID: 38436304 PMCID: PMC10954309 DOI: 10.7554/elife.83356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 03/03/2024] [Indexed: 03/05/2024] Open
Abstract
The entorhinal cortex is involved in establishing enduring visuo-auditory associative memory in the neocortex. Here we explored the mechanisms underlying this synaptic plasticity related to projections from the visual and entorhinal cortices to the auditory cortex in mice using optogenetics of dual pathways. High-frequency laser stimulation (HFS laser) of the visuo-auditory projection did not induce long-term potentiation. However, after pairing with sound stimulus, the visuo-auditory inputs were potentiated following either infusion of cholecystokinin (CCK) or HFS laser of the entorhino-auditory CCK-expressing projection. Combining retrograde tracing and RNAscope in situ hybridization, we show that Cck expression is higher in entorhinal cortex neurons projecting to the auditory cortex than in those originating from the visual cortex. In the presence of CCK, potentiation in the neocortex occurred when the presynaptic input arrived 200 ms before postsynaptic firing, even after just five trials of pairing. Behaviorally, inactivation of the CCK+ projection from the entorhinal cortex to the auditory cortex blocked the formation of visuo-auditory associative memory. Our results indicate that neocortical visuo-auditory association is formed through heterosynaptic plasticity, which depends on release of CCK in the neocortex mostly from entorhinal afferents.
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Affiliation(s)
- Wenjian Sun
- Department of Neuroscience, City University of Hong KongHong KongChina
- Centre for Regenerative Medicine and Health, Hong Kong Institute of Science & Innovation, Chinese Academy of SciencesHong KongChina
| | - Haohao Wu
- Department of Neuroscience, Karolinska InstitutetStockholmSweden
| | - Yujie Peng
- Department of Neuroscience, City University of Hong KongHong KongChina
- Centre for Regenerative Medicine and Health, Hong Kong Institute of Science & Innovation, Chinese Academy of SciencesHong KongChina
| | - Xuejiao Zheng
- Department of Neuroscience, City University of Hong KongHong KongChina
- Centre for Regenerative Medicine and Health, Hong Kong Institute of Science & Innovation, Chinese Academy of SciencesHong KongChina
| | - Jing Li
- Department of Neuroscience, City University of Hong KongHong KongChina
- Centre for Regenerative Medicine and Health, Hong Kong Institute of Science & Innovation, Chinese Academy of SciencesHong KongChina
| | - Dingxuan Zeng
- Department of Neuroscience, City University of Hong KongHong KongChina
| | - Peng Tang
- Department of Neuroscience, City University of Hong KongHong KongChina
- Centre for Regenerative Medicine and Health, Hong Kong Institute of Science & Innovation, Chinese Academy of SciencesHong KongChina
| | - Ming Zhao
- Department of Neuroscience, Karolinska InstitutetStockholmSweden
| | - Hemin Feng
- Department of Neuroscience, City University of Hong KongHong KongChina
- Centre for Regenerative Medicine and Health, Hong Kong Institute of Science & Innovation, Chinese Academy of SciencesHong KongChina
| | - Hao Li
- Department of Neuroscience, City University of Hong KongHong KongChina
- Centre for Regenerative Medicine and Health, Hong Kong Institute of Science & Innovation, Chinese Academy of SciencesHong KongChina
| | - Ye Liang
- Department of Neuroscience, City University of Hong KongHong KongChina
- Centre for Regenerative Medicine and Health, Hong Kong Institute of Science & Innovation, Chinese Academy of SciencesHong KongChina
| | - Junfeng Su
- Department of Neuroscience, City University of Hong KongHong KongChina
| | - Xi Chen
- Department of Neuroscience, City University of Hong KongHong KongChina
- City University of Hong Kong Shenzhen Research InstituteShenzhenChina
| | - Tomas Hökfelt
- Department of Neuroscience, Karolinska InstitutetStockholmSweden
- Institute of Advanced Study, City University of Hong KongHong KongChina
| | - Jufang He
- Department of Neuroscience, City University of Hong KongHong KongChina
- City University of Hong Kong Shenzhen Research InstituteShenzhenChina
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18
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Hagström H, Hegmar H, Moreno C. Interactions between the metabolic syndrome and alcohol consumption increases the risk of liver disease. United European Gastroenterol J 2024; 12:168-176. [PMID: 38381115 PMCID: PMC10954435 DOI: 10.1002/ueg2.12524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 11/06/2023] [Indexed: 02/22/2024] Open
Abstract
Alcohol-related liver disease (ALD) and non-alcoholic fatty liver disease (NAFLD, recently renamed metabolic dysfunction-associated steatotic liver disease [MASLD]) share many features, including certain pathophysiological mechanisms, susceptibility genes, and histological lesions. However, the natural history of the two diseases, studied separately, is significantly different, with ALD being associated with a higher risk of cirrhosis and liver-related mortality. Moreover, evidence suggests an interactive effect between ALD and metabolic risk factors that are associated with NAFLD on the risk of progressive fibrosis and development of cirrhosis. Patients with both a high consumption of alcohol and metabolic risk factors, such as obesity or diabetes, should therefore be considered a particularly high-risk group for cirrhosis. Additional studies regarding the efficacy of screening for advanced liver fibrosis or cirrhosis in these risk groups are needed. The most effective and established method for reducing the risk of progression in ALD is alcohol abstinence, whereas weight loss is effective in NAFLD. In this narrative review, we introduce the reader to the literature of the field and present key studies showing this interactive effect.
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Affiliation(s)
- Hannes Hagström
- Division of Hepatology, Department of Upper GI, Karolinska University Hospital, Stockholm, Sweden
- Department of Medicine, Karolinska Institute, Stockholm, Sweden
| | - Hannes Hegmar
- Division of Hepatology, Department of Upper GI, Karolinska University Hospital, Stockholm, Sweden
- Department of Medicine, Karolinska Institute, Stockholm, Sweden
| | - Christophe Moreno
- Department of Gastroenterology, Hepatopancreatology and Digestive Oncology, Hôpital Universitaire de Bruxelles, Université Libre de Bruxelles, Brussels, Belgium
- Faculté de Médecine, Laboratory of Experimental Gastroenterology, Université Libre de Bruxelles, Brussels, Belgium
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19
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Eberhard A, Bergman S, Mandl T, Olofsson T, Sharma A, Turesson C. Joint tenderness at 3 months follow-up better predicts long-term pain than baseline characteristics in early rheumatoid arthritis patients. Rheumatology (Oxford) 2024; 63:734-741. [PMID: 37314957 PMCID: PMC10907811 DOI: 10.1093/rheumatology/kead278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 05/15/2023] [Accepted: 05/29/2023] [Indexed: 06/16/2023] Open
Abstract
OBJECTIVE To investigate pain course over time and to identify baseline and 3-month predictors of unacceptable pain with or without low inflammation in early RA. METHODS A cohort of 275 patients with early RA, recruited in 2012-2016, was investigated and followed for 2 years. Pain was assessed using a visual analogue scale (VAS; 0-100 mm). Unacceptable pain was defined as VAS pain >40, and low inflammation as CRP <10 mg/l. Baseline and 3-month predictors of unacceptable pain were evaluated using logistic regression analysis. RESULTS After 2 years, 32% of patients reported unacceptable pain. Among those, 81% had low inflammation. Unacceptable pain, and unacceptable pain with low inflammation, at 1 and 2 years was significantly associated with several factors at 3 months, but not at baseline. Three-month predictors of these pain states at 1 and 2 years were higher scores for pain, patient global assessment, and the health assessment questionnaire, and more extensive joint tenderness compared with the number of swollen joints. No significant associations were found for objective inflammatory measures. CONCLUSION A substantial proportion of patients had unacceptable pain with low inflammation after 2 years. Three months after diagnosis seems to be a good time-point for assessing the risk of long-term pain. The associations between patient reported outcomes and pain, and the lack of association with objective inflammatory measures, supports the uncoupling between pain and inflammation in RA. Having many tender joints, but more limited synovitis, may be predictive of long-term pain despite low inflammation in early RA.
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Affiliation(s)
- Anna Eberhard
- Rheumatology, Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
- Helsingborg Hospital, Helsingborg, Sweden
| | - Stefan Bergman
- Rheumatology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
- Spenshult Research and Development Centre, Halmstad, Sweden
- Department of Public Health and Community Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Thomas Mandl
- Rheumatology, Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | - Tor Olofsson
- Rheumatology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
- Department of Rheumatology, Skåne University Hospital, Malmö, Sweden
| | - Ankita Sharma
- Rheumatology, Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | - Carl Turesson
- Rheumatology, Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
- Department of Rheumatology, Skåne University Hospital, Malmö, Sweden
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20
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Tran MC, Crockett DC, Tran TK, Phan PA, Federico F, Bruce R, Perchiazzi G, Payne SJ, Farmery AD. Quantifying heterogeneity in an animal model of acute respiratory distress syndrome, a comparison of inspired sinewave technique to computed tomography. Sci Rep 2024; 14:4897. [PMID: 38418516 PMCID: PMC10902369 DOI: 10.1038/s41598-024-55144-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 02/20/2024] [Indexed: 03/01/2024] Open
Abstract
The inspired sinewave technique (IST) is a non-invasive method to measure lung heterogeneity indices (including both uneven ventilation and perfusion or heterogeneity), which reveal multiple conditions of the lung and lung injury. To evaluate the reproducibility and predicted clinical outcomes of IST heterogeneity values, a comparison with a quantitative lung computed tomography (CT) scan is performed. Six anaesthetised pigs were studied after surfactant depletion by saline-lavage. Paired measurements of lung heterogeneity were then taken with both the IST and CT. Lung heterogeneity measured by the IST was calculated by (a) the ratio of tracer gas outputs measured at oscillation periods of 180 s and 60 s, and (b) by the standard deviation of the modelled log-normal distribution of ventilations and perfusions in the simulation lung. In the CT images, lungs were manually segmented and divided into different regions according to voxel density. A quantitative CT method to calculate the heterogeneity (the Cressoni method) was applied. The IST and CT show good Pearson correlation coefficients in lung heterogeneity measurements (ventilation: 0.71, and perfusion, 0.60, p < 0.001). Within individual animals, the coefficients of determination average ventilation (R2 = 0.53) and perfusion (R2 = 0.68) heterogeneity. Strong concordance rates of 98% in ventilation and 89% when the heterogeneity changes were reported in pairs measured by CT scanning and IST methods. This quantitative method to identify heterogeneity has the potential to replicate CT lung heterogeneity, and to aid individualised care in ARDS.
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Affiliation(s)
- Minh C Tran
- Nuffield Division of Anesthetics, Nuffield Department of Clinical Neurosciences, University of Oxford, Level 6, West Wing, John Radcliffe Hospital, Oxford, OX3 9DU, UK.
| | - Douglas C Crockett
- Nuffield Division of Anesthetics, Nuffield Department of Clinical Neurosciences, University of Oxford, Level 6, West Wing, John Radcliffe Hospital, Oxford, OX3 9DU, UK.
| | - Tu K Tran
- Nuffield Division of Anesthetics, Nuffield Department of Clinical Neurosciences, University of Oxford, Level 6, West Wing, John Radcliffe Hospital, Oxford, OX3 9DU, UK
- Department of Engineering and Science, University of Oxford, Oxford, UK
| | - Phi A Phan
- Nuffield Division of Anesthetics, Nuffield Department of Clinical Neurosciences, University of Oxford, Level 6, West Wing, John Radcliffe Hospital, Oxford, OX3 9DU, UK.
| | - Formenti Federico
- Nuffield Division of Anesthetics, Nuffield Department of Clinical Neurosciences, University of Oxford, Level 6, West Wing, John Radcliffe Hospital, Oxford, OX3 9DU, UK
- Centre for Human and Applied Physiology, King's College London, London, UK
- Department of Biomechanics, The University of Nebraska Omaha, Omaha, USA
| | - Richard Bruce
- Centre for Human and Applied Physiology, King's College London, London, UK
| | - Gaetano Perchiazzi
- Hedenstierna Laboratory, Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
| | - Stephen J Payne
- Department of Engineering and Science, University of Oxford, Oxford, UK
| | - Andrew D Farmery
- Nuffield Division of Anesthetics, Nuffield Department of Clinical Neurosciences, University of Oxford, Level 6, West Wing, John Radcliffe Hospital, Oxford, OX3 9DU, UK
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Caselli L, Parra-Ortiz E, Micciulla S, Skoda MWA, Häffner SM, Nielsen EM, van der Plas MJA, Malmsten M. Boosting Membrane Interactions and Antimicrobial Effects of Photocatalytic Titanium Dioxide Nanoparticles by Peptide Coating. Small 2024:e2309496. [PMID: 38402437 DOI: 10.1002/smll.202309496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 01/30/2024] [Indexed: 02/26/2024]
Abstract
Photocatalytic nanoparticles offer antimicrobial effects under illumination due to the formation of reactive oxygen species (ROS), capable of degrading bacterial membranes. ROS may, however, also degrade human cell membranes and trigger toxicity. Since antimicrobial peptides (AMPs) may display excellent selectivity between human cells and bacteria, these may offer opportunities to effectively "target" nanoparticles to bacterial membranes for increased selectivity. Investigating this, photocatalytic TiO2 nanoparticles (NPs) are coated with the AMP LL-37, and ROS generation is found by C11 -BODIPY to be essentially unaffected after AMP coating. Furthermore, peptide-coated TiO2 NPs retain their positive ζ-potential also after 1-2 h of UV illumination, showing peptide degradation to be sufficiently limited to allow peptide-mediated targeting. In line with this, quartz crystal microbalance measurements show peptide coating to promote membrane binding of TiO2 NPs, particularly so for bacteria-like anionic and cholesterol-void membranes. As a result, membrane degradation during illumination is strongly promoted for such membranes, but not so for mammalian-like membranes. The mechanisms of these effects are elucidated by neutron reflectometry. Analogously, LL-37 coating promoted membrane rupture by TiO2 NPs for Gram-negative and Gram-positive bacteria, but not for human monocytes. These findings demonstrate that AMP coating may selectively boost the antimicrobial effects of photocatalytic NPs.
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Affiliation(s)
- Lucrezia Caselli
- Department of Pharmacy, University of Copenhagen, Copenhagen, DK-2100, Denmark
- Department of Physical Chemistry 1, Lund University, Lund, SE-22100, Sweden
| | - Elisa Parra-Ortiz
- Department of Pharmacy, University of Copenhagen, Copenhagen, DK-2100, Denmark
- Novonesis, Biologiens Vej 2, Lyngby, DK-2800 Kgs, Denmark
| | - Samantha Micciulla
- Institut Laue-Langevin, CS 20156, Grenoble Cedex 9, 38042, France
- Laboratoire Interdisciplinaire de Physique (LIPhy), Saint Martin d'Hères, 38402, France
- Centre National de la Recherche Scientifique (CNRS), Saint-Martin-d'Hères, Auvergne-Rhône-Alpes, France
| | - Maximilian W A Skoda
- ISIS Pulsed Neutron and Muon Source, Rutherford Appleton Laboratory, Harwell, OX11 0QX, UK
| | - Sara Malekkhaiat Häffner
- Department of Pharmacy, University of Copenhagen, Copenhagen, DK-2100, Denmark
- RISE Research Institutes of Sweden, Malvinas väg 3, Stockholm, 114 86, Sweden
| | | | | | - Martin Malmsten
- Department of Pharmacy, University of Copenhagen, Copenhagen, DK-2100, Denmark
- Department of Physical Chemistry 1, Lund University, Lund, SE-22100, Sweden
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22
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Sjölander A, Frisell T, Öberg S, Wang Y, Hägg S. Combining Mendelian randomization with the sibling comparison design. Stat Med 2024; 43:731-755. [PMID: 38073579 DOI: 10.1002/sim.9983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 10/09/2023] [Accepted: 11/21/2023] [Indexed: 01/13/2024]
Abstract
Mendelian randomization (MR) is a popular epidemiologic study design that uses genetic variants as instrumental variables (IVs) to estimate causal effects, while accounting for unmeasured confounding. The validity of the MR design hinges on certain IV assumptions, which may sometimes be violated due to dynastic effects, population stratification, or assortative mating. Since these mechanisms act through parental factors it was recently suggested that the bias resulting from violations of the IV assumptions can be reduced by combing the MR design with the sibling comparison design, which implicitly controls for all factors that are constant within families. In this article, we provide a formal discussion of this combined MR-sibling design. We derive conditions under which the MR-sibling design is unbiased, and we relate these to the corresponding conditions for the standard MR and sibling comparison designs. We proceed by considering scenarios where all three designs are biased to some extent, and discuss under which conditions the MR-sibling design can be expected to have less bias than the other two designs. We finally illustrate the theoretical results and conclusions with an application to real data, in a study of low-density lipoprotein and diastolic blood pressure using data from the Swedish Twin Registry.
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Affiliation(s)
- Arvid Sjölander
- Department of Medical Epidemiology and Biostatistics, Karolinska Institute, Stockholm, Sweden
| | - Thomas Frisell
- Department of Medicine Solna, Karolinska Institute, Stockholm, Sweden
| | - Sara Öberg
- Department of Medical Epidemiology and Biostatistics, Karolinska Institute, Stockholm, Sweden
- Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Yunzhang Wang
- Department of Medical Epidemiology and Biostatistics, Karolinska Institute, Stockholm, Sweden
| | - Sara Hägg
- Department of Medical Epidemiology and Biostatistics, Karolinska Institute, Stockholm, Sweden
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23
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Holmdahl I, Lüning S, Gerdin SW, Asarnoj A, Hoyer A, Filiou A, Sjölander A, James A, Borres MP, Hedlin G, van Hage M, Söderhäll C, Konradsen JR. Rhinovirus-induced wheeze was associated with asthma development in predisposed children. Acta Paediatr 2024. [PMID: 38372208 DOI: 10.1111/apa.17158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 02/04/2024] [Accepted: 02/06/2024] [Indexed: 02/20/2024]
Abstract
AIM This study explored whether early-life factors, such as rhinovirus-induced wheeze and allergic sensitisation, were related to asthma at 11 years of age. METHODS We focused on 107 children aged 6-48 months, who attended the paediatric emergency department at Astrid Lindgren's Children's Hospital in Stockholm, Sweden, with acute wheeze in 2008-2012. They also attended follow-up visits at 11 years of age and were compared with 46 age-matched healthy controls. Odds ratios (OR) with 95% confidence intervals (CI) were calculated with logistic regression. RESULTS We found that 62.6% of the acute wheeze cases had asthma at 11 years of age. Rhinoviruses at inclusion were the only common airway viruses associated with an increased asthma risk (OR 2.4, 95% CI 1.02-5.6). Other increased risks were parental heredity for asthma and/or allergies (adjusted OR 3.4, 95% CI 1.1-9.9) and allergic sensitisation at 2 years of age (adjusted OR 3.0, 95% CI 1.02-8.7). The highest prevalence of asthma was when children had both rhinovirus-induced wheeze at inclusion and allergic sensitisation at 7 years of age. CONCLUSION Our findings highlight the importance of hereditary factors and allergic sensitisation on the development of asthma and suggest that rhinoviruses are associated with asthma development in predisposed children.
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Affiliation(s)
- Idun Holmdahl
- Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
- Astrid Lindgren's Children's Hospital, Karolinska University Hospital, Stockholm, Sweden
| | - Sofia Lüning
- Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
- Astrid Lindgren's Children's Hospital, Karolinska University Hospital, Stockholm, Sweden
| | - Sabina Wärnberg Gerdin
- Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
- Astrid Lindgren's Children's Hospital, Karolinska University Hospital, Stockholm, Sweden
| | - Anna Asarnoj
- Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
- Astrid Lindgren's Children's Hospital, Karolinska University Hospital, Stockholm, Sweden
| | - Angela Hoyer
- Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
- Astrid Lindgren's Children's Hospital, Karolinska University Hospital, Stockholm, Sweden
| | - Anastasia Filiou
- Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
- Astrid Lindgren's Children's Hospital, Karolinska University Hospital, Stockholm, Sweden
| | | | - Anna James
- Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Magnus P Borres
- Thermo Fisher Scientific, Uppsala, Sweden
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
| | - Gunilla Hedlin
- Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
| | - Marianne van Hage
- Division of Immunology and Allergy, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
- Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Cilla Söderhäll
- Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
- Astrid Lindgren's Children's Hospital, Karolinska University Hospital, Stockholm, Sweden
| | - Jon R Konradsen
- Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
- Astrid Lindgren's Children's Hospital, Karolinska University Hospital, Stockholm, Sweden
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24
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Venkateshvaran A, Lindqvist P. Mitral E-wave to stroke volume ratio displays stronger diagnostic performance to identify elevated left ventricular filling pressures than mitral E/e' during passive leg lift: A cross-sectional study employing simultaneous echocardiography and catheterization. Echocardiography 2024; 41:e15756. [PMID: 38400581 DOI: 10.1111/echo.15756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 12/22/2023] [Accepted: 12/28/2023] [Indexed: 02/25/2024] Open
Abstract
BACKGROUND Elevated filling pressure is a hallmark of heart failure (HF) and portends poor prognosis. Accurate diagnosis is challenging, given that patients with normal filling pressure at rest develop disproportionate elevation with sudden preload increase. We aimed to test the accuracy of the ratio between mitral inflow velocity (E) and left ventricular stroke volume (SV) to identify patients with elevated filling pressure with passive leg lifting (PLL) and compare this with other echocardiographic surrogates of filling pressure. METHODS Doppler echocardiography and right heart catheterization (RHC) were simultaneously performed in 37 patients (11 males, mean age 67 ± 12 years) with exertional dyspnea. Twenty-six healthy controls (14 males, mean age 60 ± 12 years) were added as reference. SV, cardiac output (CO), tricuspid regurgitation peak gradient (TRG), mitral E-wave (E) and early myocardial velocity (e') were obtained at rest and with PLL. E/SV, E/CO and E/e' were calculated and correlated with invasive pulmonary capillary wedge pressures (PCWP) with PLL. RESULTS During PLL, E/SV (AUC = 0.94) displayed stronger diagnostic ability to identify PCWP >15 mmHg than E/e' (AUC = 0.81), mitral E/A ratio (0.76) and resting invasive PCWP (0.84). An E/SV cutoff of >1.0 showed 88% sensitivity and 75% specificity to identify elevated PCWP. Further, 10 patients (27%) were reassigned during PLL from normal to postcapillary pulmonary hypertension (postCPH), and 6 patients (16%) switched diagnosis from precapillary PH (preCPH) to postCPH. CONCLUSION The novel E/SV ratio identifies patients with elevated PCWP with PLL and displays stronger diagnostic performance than routinely utilized echocardiographic measures such as E/e' in addition to resting, catheterization derived PCWP.
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Affiliation(s)
- Ashwin Venkateshvaran
- Clinical Physiology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
| | - Per Lindqvist
- Department of Clinical Physiology, Surgical & and Perioperative sciences, Umea, University, Umea, Sweden
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Sanchez Klose FP, Dahlstrand Rudin A, Bergqvist L, Scheffler JM, Jönsson K, Islander U, Karlsson-Bengtsson A, Bylund J, Venkatakrishnan V. The Pseudomonas aeruginosa lectin LecB modulates intracellular reactive oxygen species production in human neutrophils. Eur J Immunol 2024; 54:e2350623. [PMID: 37972111 DOI: 10.1002/eji.202350623] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 11/09/2023] [Accepted: 11/15/2023] [Indexed: 11/19/2023]
Abstract
Pseudomonas aeruginosa is a Gram-negative bacterium and an opportunistic pathogen ubiquitously present throughout nature. LecB, a fucose-, and mannose-binding lectin, is a prominent virulence factor of P. aeruginosa, which can be expressed on the bacterial surface but also be secreted. However, the LecB interaction with human immune cells remains to be characterized. Neutrophils comprise the first line of defense against infections and their production of reactive oxygen species (ROS) and release of extracellular traps (NETs) are critical antimicrobial mechanisms. When profiling the neutrophil glycome we found several glycoconjugates on granule and plasma membranes that could potentially act as LecB receptors. In line with this, we here show that soluble LecB can activate primed neutrophils to produce high levels of intracellular ROS (icROS), an effect that was inhibited by methyl fucoside. On the other hand, soluble LecB inhibits P. aeruginosa-induced icROS production. In support of that, during phagocytosis of wild-type and LecB-deficient P. aeruginosa, bacteria with LecB induced less icROS production as compared with bacteria lacking the lectin. Hence, LecB can either induce or inhibit icROS production in neutrophils depending on the circumstances, demonstrating a novel and potential role for LecB as an immunomodulator of neutrophil functional responses.
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Affiliation(s)
| | - Agnes Dahlstrand Rudin
- Department of Oral Microbiology and Immunology, Institute of Odontology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Linda Bergqvist
- Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Julia M Scheffler
- Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Katarina Jönsson
- Department of Oral Microbiology and Immunology, Institute of Odontology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Ulrika Islander
- Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- SciLifeLab, University of Gothenburg, Gothenburg, Sweden
| | - Anna Karlsson-Bengtsson
- Department of Life Sciences, Chalmers University of Technology, Gothenburg, Sweden
- Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Johan Bylund
- Department of Oral Microbiology and Immunology, Institute of Odontology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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26
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Erhardsson M, Faxén UL, Venkateshvaran A, Hage C, Pironti G, Thorvaldsen T, Webb D, Hellström PM, Andersson DC, Ståhlberg M, Lund LH. Acyl ghrelin increases cardiac output while preserving right ventricular-pulmonary arterial coupling in heart failure. ESC Heart Fail 2024; 11:601-605. [PMID: 38030138 PMCID: PMC10804189 DOI: 10.1002/ehf2.14580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 10/03/2023] [Accepted: 10/29/2023] [Indexed: 12/01/2023] Open
Abstract
AIM Acyl ghrelin increases cardiac output (CO) in heart failure with reduced ejection fraction (HFrEF). This could impair the right ventricular-pulmonary arterial coupling (RVPAC), both through an increased venous return and right ventricular afterload. We aim to investigate if acyl ghrelin increases CO with or without worsening the right-sided haemodynamics in HFrEF assessed by RVPAC. METHODS AND RESULTS The Karolinska Acyl ghrelin Trial was a randomized double-blind placebo-controlled trial of acyl ghrelin versus placebo (120-min intravenous infusion) in HFrEF. RVPAC was assessed echocardiographically at baseline and 120 min. ANOVA was used for difference in change between acyl ghrelin versus placebo, adjusted for baseline values. Of the 30 randomized patients, 22 had available RVPAC (acyl ghrelin n = 12, placebo n = 10). Despite a 15% increase in CO in the acyl ghrelin group (from 4.0 (3.5-4.6) to 4.6 (3.9-6.1) L/min, P = 0.003), RVPAC remained unchanged; 5.9 (5.3-7.6) to 6.3 (4.8-7.5) mm·(m/s)-1 , P = 0.372, while RVPAC was reduced in the placebo group, 5.2 (4.3-6.4) to 4.8 (4.2-5.8) mm·(m/s)-1 , P = 0.035. Comparing change between groups, CO increased in the acyl ghrelin group versus placebo (P = 0.036) while RVPAC and the right ventricular pressure gradient remained unchanged. CONCLUSION Treatment with acyl ghrelin increases CO while preserving or even improving RVPAC in HFrEF, possibly due to increased contractility, reduced PVR and/or reduced left sided filling pressures. These potential effects strengthen the role of acyl ghrelin therapy in HFrEF with right ventricular failure.
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Affiliation(s)
- Mikael Erhardsson
- Department of Medicine, Unit of CardiologyKarolinska InstitutetStockholmSweden
| | - Ulrika L. Faxén
- Department of Medicine, Unit of CardiologyKarolinska InstitutetStockholmSweden
- Department of Perioperative Medicine and Intensive CareKarolinska University HospitalStockholmSweden
| | - Ashwin Venkateshvaran
- Department of Clinical Physiology, Department of Clinical SciencesLund UniversityStockholmSweden
- Skåne University HospitalLundSweden
| | - Camilla Hage
- Department of Medicine, Unit of CardiologyKarolinska InstitutetStockholmSweden
- Department of Heart and Vascular ThemeKarolinska University HospitalStockholmSweden
| | - Gianluigi Pironti
- Department of Medicine, Unit of CardiologyKarolinska InstitutetStockholmSweden
- Department of Physiology and PharmacologyKarolinska InstitutetStockholmSweden
| | - Tonje Thorvaldsen
- Department of Medicine, Unit of CardiologyKarolinska InstitutetStockholmSweden
- Department of Heart and Vascular ThemeKarolinska University HospitalStockholmSweden
| | - Dominic‐Luc Webb
- Department of Medical Sciences, Gastroenterology and HepatologyUppsala UniversityUppsalaSweden
| | - Per M. Hellström
- Department of Medical Sciences, Gastroenterology and HepatologyUppsala UniversityUppsalaSweden
| | - Daniel C. Andersson
- Department of Medicine, Unit of CardiologyKarolinska InstitutetStockholmSweden
- Department of Heart and Vascular ThemeKarolinska University HospitalStockholmSweden
- Department of Physiology and PharmacologyKarolinska InstitutetStockholmSweden
| | - Marcus Ståhlberg
- Department of Medicine, Unit of CardiologyKarolinska InstitutetStockholmSweden
- Department of Heart and Vascular ThemeKarolinska University HospitalStockholmSweden
| | - Lars H. Lund
- Department of Medicine, Unit of CardiologyKarolinska InstitutetStockholmSweden
- Department of Heart and Vascular ThemeKarolinska University HospitalStockholmSweden
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Kırdök E, Kashuba N, Damlien H, Manninen MA, Nordqvist B, Kjellström A, Jakobsson M, Lindberg AM, Storå J, Persson P, Andersson B, Aravena A, Götherström A. Metagenomic analysis of Mesolithic chewed pitch reveals poor oral health among stone age individuals. Sci Rep 2024; 13:22125. [PMID: 38238372 PMCID: PMC10796427 DOI: 10.1038/s41598-023-48762-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 11/30/2023] [Indexed: 01/22/2024] Open
Abstract
Prehistoric chewed pitch has proven to be a useful source of ancient DNA, both from humans and their microbiomes. Here we present the metagenomic analysis of three pieces of chewed pitch from Huseby Klev, Sweden, that were dated to 9,890-9,540 before present. The metagenomic profile exposes a Mesolithic oral microbiome that includes opportunistic oral pathogens. We compared the data with healthy and dysbiotic microbiome datasets and we identified increased abundance of periodontitis-associated microbes. In addition, trained machine learning models predicted dysbiosis with 70-80% probability. Moreover, we identified DNA sequences from eukaryotic species such as red fox, hazelnut, red deer and apple. Our results indicate a case of poor oral health during the Scandinavian Mesolithic, and show that pitch pieces have the potential to provide information on material use, diet and oral health.
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Affiliation(s)
- Emrah Kırdök
- Department of Biotechnology, Faculty of Science, Mersin University, 33100 Yenişehir, Mersin, Turkey.
| | - Natalija Kashuba
- Department of Archaeology and Ancient History, Uppsala University, Engelska Parken, Thunbergsvägen 3H Box 626, 751 26, Uppsala, Sweden
| | - Hege Damlien
- Museum of Cultural History, University of Oslo, St. Olavs Plass, P.O. Box 6762, NO-0130, Oslo, Norway
| | - Mikael A Manninen
- PAES, Ecosystems and Environment Research Programme, Faculty of Biological and Environmental Sciences and Helsinki Institute of Sustainability Science, University of Helsinki, Viikinkaari 1, P.O. Box 65, Helsinki, Finland
| | - Bengt Nordqvist
- Foundation War-Booty Site Finnestorp, Klarinettvägen 75, 434 75, Kungsbacka, Sweden
| | - Anna Kjellström
- Department of Archaeology and Classical Studies, Osteoarchaeological Research Laboratory, Stockholm University, Stockholm, Sweden
| | - Mattias Jakobsson
- Department of Organismal Biology, Human Evolution, Uppsala University, Evolutionsbiologiskt Centrum EBC Norbyvägen 18 A, Uppsala, Sweden
| | - A Michael Lindberg
- Department of Chemistry and Biomedical Sciences, Faculty of Health and Life Sciences, Linnaeus University, Hus Vita, 44018, Kalmar, Sweden
| | - Jan Storå
- Department of Archaeology and Classical Studies, Osteoarchaeological Research Laboratory, Stockholm University, Stockholm, Sweden
| | - Per Persson
- Museum of Cultural History, University of Oslo, St. Olavs Plass, P.O. Box 6762, NO-0130, Oslo, Norway
| | - Björn Andersson
- Department of Cell and Molecular Biology (CMB), Karolinska Insitutet, P.O. Box 285, 171 77, Stockholm, Sweden
| | - Andrés Aravena
- Department of Molecular Biology and Genetics, Faculty of Science, Istanbul University, Vezneciler, 34134, Istanbul, Turkey
| | - Anders Götherström
- Centre for Palaeogenetics, Svante Arrhenius Väg 20C, 106 91, Stockholm, Sweden
- Department of Archaeology and Classical Studies, Archaeological Research Laboratory, Stockholm University, Stockholm, Sweden
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Axelsson A, Johansson M, Haglind E, Li Y, Nilsson PJ, Angenete E. Patient reported long-term side effects on bowel function and anal pain in anal cancer survivors - 3- and 6-year results from the Swedish national ANCA study. Colorectal Dis 2024; 26:54-62. [PMID: 38010060 DOI: 10.1111/codi.16814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 10/05/2023] [Accepted: 10/09/2023] [Indexed: 11/29/2023]
Abstract
AIM The primary therapeutic option for anal cancer treatment is chemoradiotherapy resulting in 80% survival. The aim of this study was to assess long-term bowel function impairment and anal pain at 3 and 6 years after anal cancer diagnosis, based on a hypothesis of an increase in impairment over time. A secondary aim was to investigate if chemoradiotherapy increased the risk for bowel impairment, compared to radiotherapy alone. METHOD The ANal CAncer study (ANCA) consists of a national Swedish cohort of patients diagnosed with anal cancer between 2011-2013. Patients within the study were invited to respond to a study-specific questionnaire at 3- and 6-years after diagnosis. Descriptive analyses for the primary endpoint and ordinal logistic regressions for secondary endpoint were performed. RESULTS A total of 388 patients (84%) were included in the study. At 3 years of follow-up, 264 patients were alive. A total of 195 of these patients (74%) answered a study specific questionnaire, and at 6 years 154 patients (67%). Fifty-seven percent experienced bowel urgency at both 3 and 6 years. There was an increased risk for repeated bowel movement within 1 h (OR 2.44 [95% CI: 1.08-5.61, p = 0.03]) at 3 years in patients who had been treated by chemoradiation compared to radiotherapy alone. CONCLUSIONS Impairment in bowel function and anal pain after anal cancer treatment should be expected and remains after 6 years. This suggests that long-term follow-up may be necessary in some form after customary follow-up. The addition of chemotherapy increases long-term side effects of bowel function.
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Affiliation(s)
- Anna Axelsson
- Department of Surgery, SSORG-Scandinavian Surgical Outcomes Research Group, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Oncology, Region Västra Götaland, Sahlgrenska University Hospital/Sahlgrenska, Gothenburg, Sweden
| | - Mia Johansson
- Department of Oncology, Region Västra Götaland, Sahlgrenska University Hospital/Sahlgrenska, Gothenburg, Sweden
- Department of Oncology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Eva Haglind
- Department of Surgery, SSORG-Scandinavian Surgical Outcomes Research Group, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Surgery, Region Västra Götaland, Sahlgrenska University Hospital/Östra, Gothenburg, Sweden
| | - Ying Li
- Department of Surgery, SSORG-Scandinavian Surgical Outcomes Research Group, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- School of Public Health and Community Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Per J Nilsson
- Department of Pelvic Cancer, Division of Coloproctology, Karolinska University Hospital, Stockholm, Sweden
| | - Eva Angenete
- Department of Surgery, SSORG-Scandinavian Surgical Outcomes Research Group, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Surgery, Region Västra Götaland, Sahlgrenska University Hospital/Östra, Gothenburg, Sweden
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Sveen TR, Viketoft M, Bengtsson J, Bahram M. Core taxa underpin soil microbial community turnover during secondary succession. Environ Microbiol 2024; 26:e16561. [PMID: 38146666 DOI: 10.1111/1462-2920.16561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Accepted: 12/08/2023] [Indexed: 12/27/2023]
Abstract
Understanding the processes that underpin the community assembly of bacteria is a key challenge in microbial ecology. We studied soil bacterial communities across a large-scale successional gradient of managed and abandoned grasslands paired with mature forest sites to disentangle drivers of community turnover and assembly. Diversity partitioning and phylogenetic null-modelling showed that bacterial communities in grasslands remain compositionally stable following abandonment and secondary succession but they differ markedly from fully afforested sites. Zeta diversity analyses revealed the persistence of core microbial taxa that both reflected and differed from whole-scale community turnover patterns. Differences in soil pH and C:N were the main drivers of community turnover between paired grassland and forest sites and the variability of pH within successional stages was a key factor related to the relative dominance of deterministic assembly processes. Our results indicate that grassland microbiomes could be compositionally resilient to abandonment and secondary succession and that the major changes in microbial communities between grasslands and forests occur fairly late in the succession when trees have established as the dominant vegetation. We also show that core taxa may show contrasting responses to management and abandonment in grasslands.
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Affiliation(s)
- Tord Ranheim Sveen
- Department of Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Maria Viketoft
- Department of Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Jan Bengtsson
- Department of Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Mohammad Bahram
- Department of Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden
- Institute of Ecology and Earth Sciences, University of Tartu, Tartu, Estonia
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Söderberg M, Magnusson M, Swaid J, Jakobsson K, Rosengren A. Undervalued essential work and lacking health literacy as determinants of COVID-19 infection risks: a qualitative interview study among foreign-born workers in Sweden. BMJ Open 2023; 13:e069838. [PMID: 38086584 PMCID: PMC10729212 DOI: 10.1136/bmjopen-2022-069838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 11/30/2023] [Indexed: 12/18/2023] Open
Abstract
OBJECTIVES To investigate work and living conditions as determinants of COVID-19 infection risks in foreign-born workers in non-healthcare occupations. DESIGN Data were collected according to a qualitative design, using semistructured interviews. Verbatim transcripts of these interviews were analysed according to systematic text condensation. PARTICIPANTS We recruited foreign-born workers (n=15) and union representatives (n=6) among taxi drivers, bus and tram drivers, pizza bakers, cleaners and property caretakers, all indicated as risk occupations during COVID-19 in Sweden. RESULTS Four overarching themes were found: 'virus exposure at work', 'aspects of low status and undervalued work', 'lack of access to information' and 'foreign-born persons' position'. Virus exposure was frequent due to many social interactions over a workday, out of which several were physically close, sometimes to the point of touching. The respondents fulfilled important societal functions, but their work was undervalued due to low job status, and they had little influence on improving safety at work. Lack of health literacy limited foreign-born workers to access information about COVID-19 infection risks and protection, since most information from health organisations and employers was only available in Swedish and not adapted to their living conditions or disseminated through unknown channels. Instead, many turned to personal contacts or social media, through which a lot of misinformation was spread. Foreign-born persons were also subjected to exploitation since a Swedish residency permit could depend on maintaining employment, making it almost impossible to make demands for improved safety at work. CONCLUSIONS Structural factors and a lack of adapted information manifested themselves as fewer possibilities for protection against COVID-19. In a globalised world, new widespread diseases are likely to occur, and more knowledge is needed to protect all workers equally. Our results are transferable to similar contexts and bring forth aspects that can be tried in quantitative studies or public health interventions.Cite Now.
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Affiliation(s)
- Mia Söderberg
- Occupational and Environmental Medicine, School of Public Health and Community Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Maria Magnusson
- Angered Hospital, Hospitals West, Region Västra Götaland, Gothenburg, Sweden
| | - Juhaina Swaid
- Occupational and Environmental Medicine, School of Public Health and Community Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Kristina Jakobsson
- Occupational and Environmental Medicine, Sahlgrenska University Hospital, Region Västra Götaland, Gothenburg, Sweden
| | - Annika Rosengren
- Department of Molecular and Clinical Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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Kumlin M, Ungerstedt J, Cai H, Leonard E, Felländer-Tsai L, Qian H. The functional and molecular impact of triamcinolone acetonide on primary human bone marrow mesenchymal stem cells. Sci Rep 2023; 13:21787. [PMID: 38066109 PMCID: PMC10709330 DOI: 10.1038/s41598-023-48448-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 11/27/2023] [Indexed: 12/18/2023] Open
Abstract
Traumatic or degenerative joint pain is abundant in the population. Symptom relief by intra- and periarticular glucocorticoid administration is frequently used, however may have potentially devastating effects, changing the normal healing process of the joint. Mesenchymal stem cells (MSCs) are important for wound-healing processes due to their multipotency in regenerating osteoblasts, chondrocytes and adipocytes but also have immunomodulatory properties. The aim of this study was to investigate the impact of triamcinolone acetonide (TA) a common glucocorticoid administrated intra- and periarticularly, on human bone marrow derived MSC viability, functionality, multi-lineage differentiation and transcriptomic output. We found that TA treatment induced apoptosis and promoted adipogenesis while impairing chondrogenesis of MSCs. RNA sequencing indicated that TA modulated the inflammatory response of MSCs, which may have an impact on the immunologic environment where the inflammatory phase is a physiological part of the natural healing process. These data indicate that triamcinolone acetonide should be used with consideration bearing the patient's outcome in mind, with the intention to optimize joint recovery and homeostasis.
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Affiliation(s)
- Maritha Kumlin
- Division of Orthopaedics and Biotechnology, Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, K54, 141 86, Stockholm, Sweden.
| | - Johanna Ungerstedt
- Department of Medicine Huddinge, Center for Hematology and Regenerative Medicine (HERM), Karolinska Institute, Stockholm, Sweden
- ME Hematology, Karolinska University Hospital, Stockholm, Sweden
| | - Huan Cai
- Department of Medicine Huddinge, Center for Hematology and Regenerative Medicine (HERM), Karolinska Institute, Stockholm, Sweden
| | - Elory Leonard
- Department of Medicine Huddinge, Center for Hematology and Regenerative Medicine (HERM), Karolinska Institute, Stockholm, Sweden
| | - Li Felländer-Tsai
- Division of Orthopaedics and Biotechnology, Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, K54, 141 86, Stockholm, Sweden
| | - Hong Qian
- Department of Medicine Huddinge, Center for Hematology and Regenerative Medicine (HERM), Karolinska Institute, Stockholm, Sweden
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Krmar RT, Franzén S, Karlsson L, Strandberg H, Törnroth‐Horsefield S, Andresen JK, Jensen BL, Carlström M, Frithiof R. Effect of controlled hypotensive hemorrhage on plasma sodium levels in anesthetized pigs: An exploratory study. Physiol Rep 2023; 11:e15886. [PMID: 38010195 PMCID: PMC10680582 DOI: 10.14814/phy2.15886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 11/15/2023] [Accepted: 11/17/2023] [Indexed: 11/29/2023] Open
Abstract
Perioperative hyponatremia, due to non-osmotic release of the antidiuretic hormone arginine vasopressin, is a serious electrolyte disorder observed in connection with many types of surgery. Since blood loss during surgery contributes to the pathogenesis of hyponatremia, we explored the effect of bleeding on plasma sodium using a controlled hypotensive hemorrhage pig model. After 30-min baseline period, hemorrhage was induced by aspiration of blood during 30 min at mean arterial pressure <50 mmHg. Thereafter, the animals were resuscitated with retransfused blood and a near-isotonic balanced crystalloid solution and monitored for 180 min. Electrolyte and water balances, cardiovascular response, renal hemodynamics, and markers of volume regulation and osmoregulation were investigated. All pigs (n = 10) developed hyponatremia. All animals retained hypotonic fluid, and none could excrete net-free water. Urinary excretion of aquaporin 2, a surrogate marker of collecting duct responsiveness to antidiuretic hormone, was significantly reduced at the end of the study, whereas lysine vasopressin, i.e., the pig antidiuretic hormone remained high. In this animal model, hyponatremia developed due to net positive fluid balance and generation of electrolyte-free water by the kidneys. A decreased urinary aquaporin 2 excretion may indicate an escape from antidiuresis.
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Affiliation(s)
- Rafael T. Krmar
- Department of Physiology and PharmacologyKarolinska InstitutetStockholmSweden
| | - Stephanie Franzén
- Department of Surgical Sciences, anesthesiology and Intensive CareUppsala UniversityUppsalaSweden
| | - Leif Karlsson
- Department of Women's and Children's HealthKarolinska Institutet, Pediatric Endocrinology Unit, Karolinska University HospitalStockholmSweden
| | - Helin Strandberg
- Department of Biochemistry and Structural BiologyLund UniversityLundSweden
| | | | - Jesper K. Andresen
- Department of Cardiovascular and Renal ResearchInstitute of Molecular Medicine, University of Southern DenmarkOdenseDenmark
- Department of UrologyOdense University HospitalOdenseDenmark
| | - Boye L. Jensen
- Department of Cardiovascular and Renal ResearchInstitute of Molecular Medicine, University of Southern DenmarkOdenseDenmark
- Department of UrologyOdense University HospitalOdenseDenmark
| | - Mattias Carlström
- Department of Physiology and PharmacologyKarolinska InstitutetStockholmSweden
| | - Robert Frithiof
- Department of Surgical Sciences, anesthesiology and Intensive CareUppsala UniversityUppsalaSweden
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Holmdahl I, Chakraborty S, Hoyer A, Filiou A, Asarnoj A, Sjölander A, Borres MP, van Hage M, Hedlin G, Konradsen JR, Söderhäll C. Inflammatory related plasma proteins involved in acute preschool wheeze. Clin Transl Allergy 2023; 13:e12308. [PMID: 38006384 PMCID: PMC10618892 DOI: 10.1002/clt2.12308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 10/01/2023] [Accepted: 10/16/2023] [Indexed: 11/27/2023] Open
Abstract
BACKGROUND Preschool wheeze is a risk factor for asthma development. However, the molecular mechanism behind a wheezing episode is not well understood. OBJECTIVE Our aims were to assess the association of plasma proteins with acute preschool wheeze and to study the proteins with differential expression at the acute phase at revisit after 3 months. Additionally, to investigate the relationship between protein expression and clinical parameters. METHOD We measured 92 inflammatory proteins in plasma and clinical parameters from 145 children during an episode of preschool wheeze (PW) and at the revisit after 3 months (PW-R, n = 113/145) and 101 healthy controls (HC) aged 6-48 months in the GEWAC cohort using the antibody-mediated proximity extension-based assay (Olink Proteomics, Uppsala). RESULTS Of the 74 analysed proteins, 52 were differentially expressed between PW and HC. The expression profiles of the top 10 proteins, Oncostatin M (OSM), IL-10, IL-6, Fibroblast growth factor 21 (FGF21), AXIN1, CXCL10, SIRT2, TNFSF11, Tumour necrosis factor β (TNF-β) and CASP8, could almost entirely separate PW from HC. Five out of 10 proteins were associated with intake of oral corticosteroids (OCS) 24 h preceding blood sampling (OSM, CASP8, IL-10, TNF-β and CXCL10). No differences in protein expression were seen between PWs with or without OCS in comparison to HC. At the revisit after 3 months, differential protein expressions were still seen between PW-R and HC for three (IL-10, SIRT2 and FGF21) of the 10 proteins. CONCLUSION Our results contribute to unravelling potential immunopathological pathways shared between preschool wheeze and asthma.
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Affiliation(s)
- Idun Holmdahl
- Department of Women's and Children's HealthKarolinska InstitutetStockholmSweden
- Astrid Lindgren's Children's HospitalKarolinska University HospitalStockholmSweden
| | - Sandip Chakraborty
- Department of Women's and Children's HealthKarolinska InstitutetStockholmSweden
- Astrid Lindgren's Children's HospitalKarolinska University HospitalStockholmSweden
| | - Angela Hoyer
- Department of Women's and Children's HealthKarolinska InstitutetStockholmSweden
- Astrid Lindgren's Children's HospitalKarolinska University HospitalStockholmSweden
| | - Anastasia Filiou
- Department of Women's and Children's HealthKarolinska InstitutetStockholmSweden
- Astrid Lindgren's Children's HospitalKarolinska University HospitalStockholmSweden
| | - Anna Asarnoj
- Department of Women's and Children's HealthKarolinska InstitutetStockholmSweden
- Astrid Lindgren's Children's HospitalKarolinska University HospitalStockholmSweden
| | | | - Magnus P. Borres
- Thermo Fisher ScientificUppsalaSweden
- Department of Women's and Children's HealthUppsala UniversityUppsalaSweden
| | - Marianne van Hage
- Division of Immunology and AllergyDepartment of Medicine SolnaKarolinska Institutet and Karolinska University HospitalStockholmSweden
| | - Gunilla Hedlin
- Department of Women's and Children's HealthKarolinska InstitutetStockholmSweden
| | - Jon R. Konradsen
- Department of Women's and Children's HealthKarolinska InstitutetStockholmSweden
- Astrid Lindgren's Children's HospitalKarolinska University HospitalStockholmSweden
| | - Cilla Söderhäll
- Department of Women's and Children's HealthKarolinska InstitutetStockholmSweden
- Astrid Lindgren's Children's HospitalKarolinska University HospitalStockholmSweden
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Vetter L, Bajalan A, Ahamed MT, Scasso C, Shafeeq S, Andersson B, Ribacke U. Starvation induces changes in abundance and small RNA cargo of extracellular vesicles released from Plasmodium falciparum infected red blood cells. Sci Rep 2023; 13:18423. [PMID: 37891207 PMCID: PMC10611735 DOI: 10.1038/s41598-023-45590-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 10/21/2023] [Indexed: 10/29/2023] Open
Abstract
The lethal malaria parasite Plasmodium falciparum needs to constantly respond and adapt to changes within the human host in order to survive and transmit. One such change is composed of nutritional limitation, which is augmented with increased parasite loads and intimately linked to severe disease development. Extracellular vesicles released from infected red blood cells have been proposed as important mediators of disease pathogenesis and intercellular communication but whether important for the parasite response to nutritional availability is unknown. Therefore, we investigated the abundance and small RNA cargo of extracellular vesicles released upon short-term nutritional starvation of P. falciparum in vitro cultures. We show that primarily ring-stage parasite cultures respond to glucose and amino acid deprivation with an increased release of extracellular vesicles. Small RNA sequencing of these extracellular vesicles further revealed human miRNAs and parasitic tRNA fragments as the main constituent biotypes. Short-term starvations led to alterations in the transcriptomic profile, most notably in terms of the over-represented biotypes. These data suggest a potential role for extracellular vesicles released from P. falciparum infected red blood cells in the response to nutritional perturbations, their potential as prognostic biomarkers and point towards an evolutionary conserved role among protozoan parasites.
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Affiliation(s)
- Leonie Vetter
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Solnavägen 9, SE-17165, Solna, Sweden
| | - Amanj Bajalan
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Solnavägen 9, SE-17165, Solna, Sweden
| | - Mohammad Tanvir Ahamed
- Department of Learning, Informatics, Management and Ethics, Karolinska Institutet, Tomtebodavägen 18, SE-17177, Solna, Sweden
| | - Caterina Scasso
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Solnavägen 9, SE-17165, Solna, Sweden
| | - Sulman Shafeeq
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Solnavägen 9, SE-17165, Solna, Sweden
| | - Björn Andersson
- Department of Cell and Molecular Biology, Karolinska Institutet, Solnavägen 9, SE-17165, Solna, Sweden
| | - Ulf Ribacke
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Solnavägen 9, SE-17165, Solna, Sweden.
- Department of Cell and Molecular Biology, Uppsala University, Husargatan 3, SE-75237, Uppsala, Sweden.
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Bejerot S, Eklund D, Hesser H, Hietala MA, Kariis T, Lange N, Lebedev A, Montgomery S, Nordenskjöld A, Petrovic P, Söderbergh A, Thunberg P, Wikström S, Humble MB. Study protocol for a randomized controlled trial with rituximab for psychotic disorder in adults (RCT-Rits). BMC Psychiatry 2023; 23:771. [PMID: 37872497 PMCID: PMC10594806 DOI: 10.1186/s12888-023-05250-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Accepted: 10/03/2023] [Indexed: 10/25/2023] Open
Abstract
BACKGROUND The role of inflammation in the aetiology of schizophrenia has gained wide attention and research on the association shows an exponential growth in the last 15 years. Autoimmune diseases and severe infections are risk factors for the later development of schizophrenia, elevated inflammatory markers in childhood or adolescence are associated with a greater risk of schizophrenia in adulthood, individuals with schizophrenia have increased levels of pro-inflammatory cytokines compared to healthy controls, and autoimmune diseases are overrepresented in schizophrenia. However, treatments with anti-inflammatory agents are so far of doubtful clinical relevance. The primary objective of this study is to test whether the monoclonal antibody rituximab, directed against the B-cell antigen CD20 ameliorates psychotic symptoms in adults with schizophrenia or schizoaffective disorder and to examine potential mechanisms. A secondary objective is to examine characteristics of inflammation-associated psychosis and to identify pre-treatment biochemical characteristics of rituximab responders. A third objective is to interview a subset of patients and informants on their experiences of the trial to obtain insights that rating scales may not capture. METHODS A proof-of-concept study employing a randomised, parallel-group, double-blind, placebo-controlled design testing the effect of B-cell depletion in patients with psychosis. 120 participants with a diagnosis of schizophrenia spectrum disorders (SSD) (ICD-10 codes F20, F25) will receive either one intravenous infusion of rituximab (1000 mg) or saline. Psychiatric measures and blood samples will be collected at baseline, week 12, and week 24 post-infusion. Brief assessments will also be made in weeks 2 and 7. Neuroimaging and lumbar puncture, both optional, will be performed at baseline and endpoints. Approximately 40 of the patients and their informants will be interviewed for qualitative analyses on the perceived changes in well-being and emotional qualities, in addition to their views on the research. DISCUSSION This is the first RCT investigating add-on treatment with rituximab in unselected SSD patients. If the treatment is helpful, it may transform the treatment of patients with psychotic disorders. It may also heighten the awareness of immune-psychiatric disorders and reduce stigma. TRIAL REGISTRATION NCT05622201, EudraCT-nr 2022-000220-37 version 2.1. registered 14th of October 2022.
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Affiliation(s)
- Susanne Bejerot
- Faculty of Health and Medical Sciences, University Health Care Research Centre, Örebro University, Örebro, Sweden.
| | - Daniel Eklund
- Faculty of Medicine and Health, School of Medical Sciences, Örebro University, Örebro, Sweden
| | - Hugo Hesser
- School of Behavioural, Social and Legal Sciences, Örebro University, Örebro, Sweden
| | - Max Albert Hietala
- Department of Neurology, Karolinska University Hospital, Stockholm, Sweden
| | - Tarmo Kariis
- Karlstad Central Hospital, Region Värmland, Karlstad, Sweden
| | - Niclas Lange
- Faculty of Medicine and Health, School of Medical Sciences, Örebro University, Örebro, Sweden
| | - Alexander Lebedev
- Center for Psychiatry Research (CPF), Center for Cognitive and Computational Neuropsychiatry (CCNP), Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Scott Montgomery
- Clinical Epidemiology and Biostatistics, School of Medical Sciences, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
| | - Axel Nordenskjöld
- Faculty of Medicine and Health, School of Medical Sciences, Örebro University, Örebro, Sweden
| | - Predrag Petrovic
- Center for Psychiatry Research (CPF), Center for Cognitive and Computational Neuropsychiatry (CCNP), Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Annika Söderbergh
- Department of Rheumatology, Örebro University Hospital, Örebro, Sweden
| | - Per Thunberg
- Department of Radiology and Medical Physics, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
- Center for Experimental and Biomedical Imaging in Örebro (CEBIO), Faculty of Medicine and Health, Örebro University, Örebro, Sweden
| | - Sverre Wikström
- Faculty of Medicine and Health, School of Medical Sciences, Örebro University, Örebro, Sweden
- Centre for Clinical Research, County Council of Värmland, Karlstad, Sweden
| | - Mats B Humble
- Faculty of Medicine and Health, School of Medical Sciences, Örebro University, Örebro, Sweden
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Fröberg G, Ahmed A, Chryssanthou E, Davies Forsman L. The in vitro effect of new combinations of carbapenem-β-lactamase inhibitors for Mycobacterium abscessus. Antimicrob Agents Chemother 2023; 67:e0052823. [PMID: 37671880 PMCID: PMC10583658 DOI: 10.1128/aac.00528-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 06/26/2023] [Indexed: 09/07/2023] Open
Abstract
As new treatment alternatives for Mycobacterium abscessus complex (MABC) are urgently needed, we determined the minimum inhibitory concentrations (MICs) for novel carbapenem combinations, including imipenem-relebactam and tebipenem-avibactam against 98 MABC isolates by broth microdilution. The MIC50 was reduced from 16 to 8 mg/L by adding relebactam to imipenem, while the addition of avibactam to tebipenem showed a more pronounced reduction from 256 to 16 mg/L, representing a promising non-toxic, oral treatment option for further exploration.
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Affiliation(s)
- Gabrielle Fröberg
- Department of Clinical Microbiology, Karolinska University Hospital, Stockholm, Sweden
- Department of Medicine, Division of Infectious Diseases, Karolinska Institutet, Solna, Sweden
| | - Ayan Ahmed
- Department of Clinical Microbiology, Karolinska University Hospital, Stockholm, Sweden
| | - Erja Chryssanthou
- Department of Clinical Microbiology, Karolinska University Hospital, Stockholm, Sweden
| | - Lina Davies Forsman
- Department of Medicine, Division of Infectious Diseases, Karolinska Institutet, Solna, Sweden
- Department of Infectious Diseases, Karolinska University Hospital, Stockholm, Sweden
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Mo M, Thiesmeier R, Kiwango G, Rausch C, Möller J, Liang Y. The Association between Birthweight and Use of Cardiovascular Medications: The Role of Health Behaviors. J Cardiovasc Dev Dis 2023; 10:426. [PMID: 37887873 PMCID: PMC10607150 DOI: 10.3390/jcdd10100426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 10/13/2023] [Accepted: 10/14/2023] [Indexed: 10/28/2023] Open
Abstract
BACKGROUND There is limited evidence on the effect of low birthweight on the use of cardiovascular medications and the role of health behaviors. This study aims to determine the independent effect of low birthweight and its combination with adult health behaviors on the number of dispensed cardiovascular medications. METHODS We included 15618 participants with information on birthweight and self-reported health behaviors. Dispensed cardiovascular medications were identified from the Prescribed Drug Register based on a three-digit level Anatomical Therapeutic Chemical classification code (C01 to C10 and B01) and categorized into 0, 1, and ≥2 different types of medications. We applied multinomial logistic regression models estimating odds ratios (ORs) and 95% confidence intervals (CIs). RESULTS Participants with low birthweight had a higher estimated OR of using ≥2 types of cardiovascular medications (OR = 1.46, 95% CI = 1.06, 2.01). Further, an increased risk for using ≥2 types of cardiovascular medications was found in participants with poor health behaviors for normal (OR = 2.17, 95% CI = 1.80, 2.62) and high (OR = 1.84, 95% CI = 1.29, 2.62) birthweight. The strongest effect on using ≥2 types of cardiovascular medications was found for low birthweight and poor health behaviors (OR = 3.14, 95% CI = 1.80, 5.50). CONCLUSION This cohort study provides evidence that low birthweight increases the risk of using more types of cardiovascular medications in adulthood. This study also suggests that ideal health behaviors reduce this risk.
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Affiliation(s)
- Minjia Mo
- Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, 14183 Stockholm, Sweden
| | - Robert Thiesmeier
- Department of Global Public Health, Karolinska Institutet, 17177 Stockholm, Sweden
| | - George Kiwango
- Department of Global Public Health, Karolinska Institutet, 17177 Stockholm, Sweden
- Department of Physiology, Muhimbili University of Health and Allied Sciences, 17105 Dar es Salaam, Tanzania
| | - Christian Rausch
- Department of Global Public Health, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Jette Möller
- Department of Global Public Health, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Yajun Liang
- Department of Global Public Health, Karolinska Institutet, 17177 Stockholm, Sweden
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Angerfors A, Brännmark C, Lagging C, Tai K, Månsby Svedberg R, Andersson B, Jern C, Stanne TM. Proteomic profiling identifies novel inflammation-related plasma proteins associated with ischemic stroke outcome. J Neuroinflammation 2023; 20:224. [PMID: 37794467 PMCID: PMC10548608 DOI: 10.1186/s12974-023-02912-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 09/28/2023] [Indexed: 10/06/2023] Open
Abstract
BACKGROUND The inflammatory response to cerebral ischemia is complex; however, most clinical studies of stroke outcome focus on a few selected proteins. We, therefore, aimed to profile a broad range of inflammation-related proteins to: identify proteins associated with ischemic stroke outcome that are independent of established clinical predictors; identify proteins subsets for outcome prediction; and perform sex and etiological subtype stratified analyses. METHODS Acute-phase plasma levels of 65 inflammation-related proteins were measured in 534 ischemic stroke cases. Logistic regression was used to estimate associations to unfavorable 3-month functional outcome (modified Rankin Scale score > 2) and LASSO regressions to identify proteins with independent effects. RESULTS Twenty proteins were associated with outcome in univariable models after correction for multiple testing (FDR < 0.05), and for 5 the association was independent of clinical variables, including stroke severity (TNFSF14 [LIGHT], OSM, SIRT2, STAMBP, and 4E-BP1). LASSO identified 9 proteins that could best separate favorable and unfavorable outcome with a predicted diagnostic accuracy (AUC) of 0.81; three associated with favorable (CCL25, TRAIL [TNFSF10], and Flt3L) and 6 with unfavorable outcome (CSF-1, EN-RAGE [S100A12], HGF, IL-6, OSM, and TNFSF14). Finally, we identified sex- and etiologic subtype-specific associations with the best discriminative ability achieved for cardioembolic, followed by cryptogenic stroke. CONCLUSIONS We identified candidate blood-based protein biomarkers for post-stroke functional outcome involved in, e.g., NLRP3 inflammasome regulation and signaling pathways, such as TNF, JAK/STAT, MAPK, and NF-κB. These proteins warrant further study for stroke outcome prediction as well as investigations into the putative causal role for stroke outcome.
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Affiliation(s)
- Annelie Angerfors
- Institute of Biomedicine, Department of Laboratory Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Cecilia Brännmark
- Institute of Biomedicine, Department of Laboratory Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Research, Development, Education and Innovation, Region Västra Götaland, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Cecilia Lagging
- Institute of Biomedicine, Department of Laboratory Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Clinical Genetics and Genomics, Region Västra Götaland, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Kara Tai
- Institute of Biomedicine, Department of Laboratory Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Robert Månsby Svedberg
- Institute of Biomedicine, Department of Laboratory Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Björn Andersson
- Bioinformatics and Data Center, Core Facilities, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Christina Jern
- Institute of Biomedicine, Department of Laboratory Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Clinical Genetics and Genomics, Region Västra Götaland, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Tara M Stanne
- Institute of Biomedicine, Department of Laboratory Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
- Department of Clinical Genetics and Genomics, Region Västra Götaland, Sahlgrenska University Hospital, Gothenburg, Sweden.
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Hallström M, Klingberg E, Deminger A, Rehnman JB, Geijer M, Forsblad-d'Elia H. Physical function and sex differences in radiographic axial spondyloarthritis: a cross-sectional analysis on Bath Ankylosing Spondylitis Functional Index. Arthritis Res Ther 2023; 25:182. [PMID: 37749599 PMCID: PMC10521572 DOI: 10.1186/s13075-023-03173-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 09/13/2023] [Indexed: 09/27/2023] Open
Abstract
BACKGROUND Physical function is an important determinant of health-related quality of life in radiographic axial spondyloarthritis patients (r-axSpA). To improve the basis of effective healthcare efforts, we aimed to investigate which demographic and disease-related factors that influence Bath Ankylosing Spondylitis Functional Index (BASFI) in r-axSpA patients overall and stratified by sex. Furthermore, we sought to explore differences between sexes regarding separate BASFI questions and also to explore which factors that may contribute to these differences. METHODS This observational cross-sectional study included patients fulfilling the modified New York criteria for Ankylosing Spondylitis. Patients were assessed with 66/68 joint count and Bath Ankylosing Spondylitis Metrology Index (BASMI) measurements. Lateral X-rays were performed for Modified Stoke Ankylosing Spondylitis Spinal Score (mSASSS). Bath Ankylosing Spondylitis Disease Activity Index (BASDAI), Ankylosing Spondylitis Disease Activity Score (ASDAS)-C-Reactive Protein (CRP), and BASFI were registered. Multivariable linear regression analyses were used to investigate which factors that associate with BASFI. RESULTS A total of 353 r-axSpA patients were included, mean age 52.2 ± 12.7 years, 62.3% males. No significant sex difference was seen in BASFI scores (2.7 ± 2.0 in males vs 2.9 ± 2.1 in females). Age, body mass index, ASDAS-CRP, BASMI or mSASSS, fatigue, and tenderness were found to associate independently with BASFI in different models (R2 0.53-0.63). Investigation of separate BASFI questions revealed that the ability to look over shoulder was worse in males than females (mean 4.43 ± 3.37 vs 3.74 ± 3.06, p = 0.05) and most strongly correlated with mSASSS and BASMI among separate BASFI questions (r = 0.53, p < 0.001; r = 0.62, p < 0.001). The ability to climb stairs was worse in females than males (mean 2.49 ± 2.77 vs 1.54 ± 2.32, p < 0.001). CONCLUSIONS No difference between male and female r-axSpA patients was seen in BASFI despite significant sex differences in BASMI, mSASSS, and CRP levels. Our results underline the impact of fatigue and tenderness on BASFI. The ability to climb stairs without a handrail was scored worse among females compared to males. Furthermore, the ability to look over the shoulder was worse in males than females and closely related to spinal mobility and structural spinal changes.
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Affiliation(s)
- Magnus Hallström
- Department of Rheumatology and Inflammation Research, Institute of Medicine, University of Gothenburg, Box 480, 405 30, Gothenburg, Sweden.
- Department of Rheumatology, Region Västra Götaland, Sahlgrenska University Hospital, Gothenburg, Sweden.
| | - Eva Klingberg
- Department of Rheumatology and Inflammation Research, Institute of Medicine, University of Gothenburg, Box 480, 405 30, Gothenburg, Sweden
- Department of Rheumatology, Region Västra Götaland, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Anna Deminger
- Department of Rheumatology and Inflammation Research, Institute of Medicine, University of Gothenburg, Box 480, 405 30, Gothenburg, Sweden
- Department of Rheumatology, Region Västra Götaland, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Jeannette Beckman Rehnman
- Department of Public Health and Clinical Medicine, Section of Medicine, Umeå University, Umeå, Sweden
| | - Mats Geijer
- Department of Radiology, Institute of Clinical Sciences, University of Gothenburg, Gothenburg, Sweden
- Department of Radiology, Region Västra Götaland, Sahlgrenska University Hospital, Gothenburg, Sweden
- Department of Clinical Sciences, Lund University, Lund, Sweden
| | - Helena Forsblad-d'Elia
- Department of Rheumatology and Inflammation Research, Institute of Medicine, University of Gothenburg, Box 480, 405 30, Gothenburg, Sweden
- Department of Rheumatology, Region Västra Götaland, Sahlgrenska University Hospital, Gothenburg, Sweden
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Niskanen JE, Ohlsson Å, Ljungvall I, Drögemüller M, Ernst RF, Dooijes D, van Deutekom HWM, van Tintelen JP, Snijders Blok CJB, van Vugt M, van Setten J, Asselbergs FW, Petrič AD, Salonen M, Hundi S, Hörtenhuber M, Kere J, Pyle WG, Donner J, Postma AV, Leeb T, Andersson G, Hytönen MK, Häggström J, Wiberg M, Friederich J, Eberhard J, Harakalova M, van Steenbeek FG, Wess G, Lohi H. Identification of novel genetic risk factors of dilated cardiomyopathy: from canine to human. Genome Med 2023; 15:73. [PMID: 37723491 PMCID: PMC10506233 DOI: 10.1186/s13073-023-01221-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 08/17/2023] [Indexed: 09/20/2023] Open
Abstract
BACKGROUND Dilated cardiomyopathy (DCM) is a life-threatening heart disease and a common cause of heart failure due to systolic dysfunction and subsequent left or biventricular dilatation. A significant number of cases have a genetic etiology; however, as a complex disease, the exact genetic risk factors are largely unknown, and many patients remain without a molecular diagnosis. METHODS We performed GWAS followed by whole-genome, transcriptome, and immunohistochemical analyses in a spontaneously occurring canine model of DCM. Canine gene discovery was followed up in three human DCM cohorts. RESULTS Our results revealed two independent additive loci associated with the typical DCM phenotype comprising left ventricular systolic dysfunction and dilatation. We highlight two novel candidate genes, RNF207 and PRKAA2, known for their involvement in cardiac action potentials, energy homeostasis, and morphology. We further illustrate the distinct genetic etiologies underlying the typical DCM phenotype and ventricular premature contractions. Finally, we followed up on the canine discoveries in human DCM patients and discovered candidate variants in our two novel genes. CONCLUSIONS Collectively, our study yields insight into the molecular pathophysiology of DCM and provides a large animal model for preclinical studies.
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Affiliation(s)
- Julia E Niskanen
- Department of Medical and Clinical Genetics, University of Helsinki, Haartmaninkatu 8, 00290, Helsinki, Finland
- Department of Veterinary Biosciences, University of Helsinki, Agnes Sjöbergin katu 2, 00790, Helsinki, Finland
- Folkhälsan Research Center, Haartmaninkatu 8, P.O.Box 63, 00290, Helsinki, Finland
| | - Åsa Ohlsson
- Department of Animal Breeding and Genetics, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Ingrid Ljungvall
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Michaela Drögemüller
- Institute of Genetics, Vetsuisse Faculty, University of Bern, Bern, 3001, Switzerland
| | - Robert F Ernst
- Department of Genetics, University Medical Centre Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Dennis Dooijes
- Department of Genetics, University Medical Centre Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Hanneke W M van Deutekom
- Department of Genetics, University Medical Centre Utrecht, Utrecht University, Utrecht, The Netherlands
| | - J Peter van Tintelen
- Department of Genetics, University Medical Centre Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Christian J B Snijders Blok
- Department of Cardiology, Division Heart & Lungs, University Medical Center Utrecht (UMCU), Utrecht, The Netherlands
- Regenerative Medicine Centre Utrecht, University of Utrecht, Utrecht, The Netherlands
| | - Marion van Vugt
- Department of Cardiology, Division Heart & Lungs, University Medical Center Utrecht (UMCU), Utrecht, The Netherlands
| | - Jessica van Setten
- Department of Cardiology, Division Heart & Lungs, University Medical Center Utrecht (UMCU), Utrecht, The Netherlands
| | - Folkert W Asselbergs
- Amsterdam University Medical Centers, Department of Cardiology, University of Amsterdam, Amsterdam, The Netherlands
- Health Data Research UK and Institute of Health Informatics, University College London, London, UK
| | | | - Milla Salonen
- Department of Medical and Clinical Genetics, University of Helsinki, Haartmaninkatu 8, 00290, Helsinki, Finland
- Department of Veterinary Biosciences, University of Helsinki, Agnes Sjöbergin katu 2, 00790, Helsinki, Finland
- Folkhälsan Research Center, Haartmaninkatu 8, P.O.Box 63, 00290, Helsinki, Finland
| | - Sruthi Hundi
- Department of Medical and Clinical Genetics, University of Helsinki, Haartmaninkatu 8, 00290, Helsinki, Finland
- Department of Veterinary Biosciences, University of Helsinki, Agnes Sjöbergin katu 2, 00790, Helsinki, Finland
- Folkhälsan Research Center, Haartmaninkatu 8, P.O.Box 63, 00290, Helsinki, Finland
| | - Matthias Hörtenhuber
- Department of Biosciences and Nutrition, Karolinska Institutet, Huddinge, Sweden
| | - Juha Kere
- Folkhälsan Research Center, Haartmaninkatu 8, P.O.Box 63, 00290, Helsinki, Finland
- Department of Biosciences and Nutrition, Karolinska Institutet, Huddinge, Sweden
- Research Programs Unit, Stem Cells and Metabolism Research Program, University of Helsinki, Helsinki, Finland
| | - W Glen Pyle
- Department of Biomedical Sciences, University of Guelph, Guelph, ON, Canada
- IMPART Investigator Team Canada, Dalhousie Medicine, Saint John, NB, Canada
| | - Jonas Donner
- Wisdom Panel Research Team, Wisdom Panel, Kinship, Helsinki, Finland
| | - Alex V Postma
- Department of Human Genetics, Amsterdam University Medical Center, Amsterdam, The Netherlands
- Department of Medical Biology, Amsterdam University Medical Center, Amsterdam, The Netherlands
| | - Tosso Leeb
- Institute of Genetics, Vetsuisse Faculty, University of Bern, Bern, 3001, Switzerland
| | - Göran Andersson
- Department of Animal Breeding and Genetics, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Marjo K Hytönen
- Department of Medical and Clinical Genetics, University of Helsinki, Haartmaninkatu 8, 00290, Helsinki, Finland
- Department of Veterinary Biosciences, University of Helsinki, Agnes Sjöbergin katu 2, 00790, Helsinki, Finland
- Folkhälsan Research Center, Haartmaninkatu 8, P.O.Box 63, 00290, Helsinki, Finland
| | - Jens Häggström
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Maria Wiberg
- Department of Equine and Small Animal Medicine, University of Helsinki, Helsinki, Finland
| | - Jana Friederich
- LMU Small Animal Clinic, Ludwig Maximilians University of Munich, Munich, Germany
| | - Jenny Eberhard
- LMU Small Animal Clinic, Ludwig Maximilians University of Munich, Munich, Germany
| | - Magdalena Harakalova
- Department of Cardiology, Division Heart & Lungs, University Medical Center Utrecht (UMCU), Utrecht, The Netherlands
- Regenerative Medicine Centre Utrecht, University of Utrecht, Utrecht, The Netherlands
| | - Frank G van Steenbeek
- Department of Cardiology, Division Heart & Lungs, University Medical Center Utrecht (UMCU), Utrecht, The Netherlands
- Regenerative Medicine Centre Utrecht, University of Utrecht, Utrecht, The Netherlands
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 108, Utrecht, 3584 CM, The Netherlands
| | - Gerhard Wess
- LMU Small Animal Clinic, Ludwig Maximilians University of Munich, Munich, Germany
| | - Hannes Lohi
- Department of Medical and Clinical Genetics, University of Helsinki, Haartmaninkatu 8, 00290, Helsinki, Finland.
- Department of Veterinary Biosciences, University of Helsinki, Agnes Sjöbergin katu 2, 00790, Helsinki, Finland.
- Folkhälsan Research Center, Haartmaninkatu 8, P.O.Box 63, 00290, Helsinki, Finland.
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Åberg AC, Petersson JR, Giedraitis V, McKee KJ, Rosendahl E, Halvorsen K, Berglund L. Prediction of conversion to dementia disorders based on timed up and go dual-task test verbal and motor outcomes: a five-year prospective memory-clinic-based study. BMC Geriatr 2023; 23:535. [PMID: 37660032 PMCID: PMC10475186 DOI: 10.1186/s12877-023-04262-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 08/28/2023] [Indexed: 09/04/2023] Open
Abstract
BACKGROUND While assessment tools can increase the detection of cognitive impairment, there is currently insufficient evidence regarding clinical outcomes based on screening for cognitive impairment in older adults. METHODS The study purpose was to investigate whether Timed Up and Go dual-task test (TUGdt) results, based on TUG combined with two different verbal tasks (name different animals, TUGdt-NA, and recite months in reverse order, TUGdt-MB), predicted dementia incidence over a period of five years among patients (N = 186, mean = 70.7 years; 45.7% female) diagnosed with Subjective Cognitive Impairment (SCI) and Mild Cognitive Impairment (MCI) following assessment at two memory clinics. Associations between TUG parameters and dementia incidence were examined in Cox regression models. RESULTS During follow-up time (median (range) 3.7 (0.1-6.1) years) 98 participants converted to dementia. Novel findings indicated that the TUGdt parameter words/time, after adjustment for age, gender, and education, can be used for the prediction of conversion to dementia in participants with SCI or MCI over a period of five years. Among the TUG-related parameters investigated, words/time showed the best predictive capacity, while time scores of TUG and TUGdt as well as TUGdt cost did not produce significant predictive results. Results further showed that the step parameter step length during TUGdt predicts conversion to dementia before adjustment for age, gender, and education. Optimal TUGdt cutoffs for predicting dementia at 2- and 4-year follow-up based on words/time were calculated. The sensitivity of the TUGdt cutoffs was high at 2-year follow-up: TUGdt-NA words/time, 0.79; TUGdt-MB words/time, 0.71; reducing respectively to 0.64 and 0.65 at 4-year follow-up. CONCLUSIONS TUGdt words/time parameters have potential as cost-efficient tools for conversion-to-dementia risk assessment, useful for research and clinical purposes. These parameters may be able to bridge the gap of insufficient evidence for such clinical outcomes. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT05893524: https://www. CLINICALTRIALS gov/study/NCT05893524?id=NCT05893524&rank=1 .
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Affiliation(s)
- Anna Cristina Åberg
- School of Health and Welfare, Dalarna University, 791 88, Falun, Sweden.
- Department of Public Health and Caring Sciences, Geriatrics, Uppsala Universit, y, Box 564, 52 37, UPPSALA, Sweden.
| | - Johanna R Petersson
- School of Health and Welfare, Dalarna University, 791 88, Falun, Sweden
- Department of Public Health and Caring Sciences, Geriatrics, Uppsala Universit, y, Box 564, 52 37, UPPSALA, Sweden
| | - Vilmantas Giedraitis
- School of Health and Welfare, Dalarna University, 791 88, Falun, Sweden
- Department of Public Health and Caring Sciences, Geriatrics, Uppsala Universit, y, Box 564, 52 37, UPPSALA, Sweden
| | - Kevin J McKee
- School of Health and Welfare, Dalarna University, 791 88, Falun, Sweden
| | - Erik Rosendahl
- Department of Community Medicine and Rehabilitation, Physiotherapy, Umeå University, 90187, Umeå, Sweden
| | - Kjartan Halvorsen
- School of Health and Welfare, Dalarna University, 791 88, Falun, Sweden
- Department of Mechatronics, School of Engineering and Sciences, Campus Estado de Mexico, Tecnologico de Monterrey, Atizapan, Mexico, Carretera Lago de Guadalupe Km 3.5, 52926, Atizapan, Estado de Mexico, Mexico
| | - Lars Berglund
- School of Health and Welfare, Dalarna University, 791 88, Falun, Sweden
- Department of Public Health and Caring Sciences, Geriatrics, Uppsala Universit, y, Box 564, 52 37, UPPSALA, Sweden
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Lundin S, Wahlgren CF, Johansson EK, Andersson N, Mogensen I, Ekstrom S, Jonsson M, Melen E, Ljungman PLS, Bergstrom A, Kull I. Childhood atopic dermatitis is associated with cardiovascular risk factors in young adulthood-A population-based cohort study. J Eur Acad Dermatol Venereol 2023; 37:1854-1862. [PMID: 37184288 DOI: 10.1111/jdv.19190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 04/26/2023] [Indexed: 05/16/2023]
Abstract
BACKGROUND Studies have indicated that atopic dermatitis (AD) is associated with an increased risk of cardiovascular disease (CVD). However, data are conflicting. Furthermore, the longitudinal effect of childhood AD on cardiovascular risk factors in young adulthood is less investigated. OBJECTIVES To assess associations between AD in childhood and CVD risk factors in young adulthood. METHODS The study encompasses longitudinal data from a population-based birth cohort. Participants with data up to age 24 years were included (n = 2270). The primary outcomes were body mass index (BMI), waist circumference (WC), body fat per cent (BF%) and blood pressure (BP) at 24 years. The secondary outcome was blood lipids. Severe AD was defined as AD in combination with sleep disturbance due to itching. RESULTS In total, 18.6% (n = 420) had AD at 24 years. Males with AD had higher BMI (βAdj. 0.81, 95% CI 0.15-1.47), BF% (βAdj. 1.19, 95% CI 0.09-2.29), systolic BP (βAdj. 1.92, 95% CI 0.02-3.82), total cholesterol (βAdj. 0.14, 95% CI 0.00-0.28) and LDL cholesterol (βAdj. 0.15, 95% CI 0.02-0.27) compared with males without AD. No associations were seen in females. Current AD with prepubertal onset was associated with increased BMI in both males (βAdj. 0.89, 95% CI 0.11-1.67) and females (βAdj. 0.72, 95% CI 0.11-1.33). At 24 years, 23.1% (n = 97) of all with AD, had severe disease, which was significantly associated with overweight in both sexes, with BMI (βAdj. 1.83, 95% CI 0.72-2.94), WC (βAdj. 4.03, 95% CI 1.54-6.52) and BF% (βAdj. 2.49, 95% CI 0.60-4.39) in females and with BF% (βAdj. 2.96, 95% CI 0.23-5.69) in males, compared with peers with mild to moderate AD. CONCLUSION AD in males appears to be associated with CVD risk factors in young adulthood. The duration and severity of AD seem to be of importance in both sexes.
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Affiliation(s)
- S Lundin
- Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
- Sachs' Children and Youth Hospital, Södersjukhuset, Stockholm, Sweden
| | - C F Wahlgren
- Dermatology and Venereology Unit, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
| | - E K Johansson
- Dermatology and Venereology Unit, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
- Department of Dermatology, Karolinska University Hospital, Stockholm, Sweden
| | - N Andersson
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - I Mogensen
- Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
| | - S Ekstrom
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Centre of Occupational and Environmental Medicine, Region Stockholm, Sweden
| | - M Jonsson
- Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Department of Cardiology, Danderyd University Hospital, Stockholm, Sweden
| | - E Melen
- Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
- Sachs' Children and Youth Hospital, Södersjukhuset, Stockholm, Sweden
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - P L S Ljungman
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Department of Cardiology, Danderyd University Hospital, Stockholm, Sweden
| | - A Bergstrom
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Centre of Occupational and Environmental Medicine, Region Stockholm, Sweden
| | - I Kull
- Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
- Sachs' Children and Youth Hospital, Södersjukhuset, Stockholm, Sweden
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Solis-Miranda J, Chodasiewicz M, Skirycz A, Fernie AR, Moschou PN, Bozhkov PV, Gutierrez-Beltran E. Stress-related biomolecular condensates in plants. Plant Cell 2023; 35:3187-3204. [PMID: 37162152 PMCID: PMC10473214 DOI: 10.1093/plcell/koad127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 04/07/2023] [Accepted: 04/27/2023] [Indexed: 05/11/2023]
Abstract
Biomolecular condensates are membraneless organelle-like structures that can concentrate molecules and often form through liquid-liquid phase separation. Biomolecular condensate assembly is tightly regulated by developmental and environmental cues. Although research on biomolecular condensates has intensified in the past 10 years, our current understanding of the molecular mechanisms and components underlying their formation remains in its infancy, especially in plants. However, recent studies have shown that the formation of biomolecular condensates may be central to plant acclimation to stress conditions. Here, we describe the mechanism, regulation, and properties of stress-related condensates in plants, focusing on stress granules and processing bodies, 2 of the most well-characterized biomolecular condensates. In this regard, we showcase the proteomes of stress granules and processing bodies in an attempt to suggest methods for elucidating the composition and function of biomolecular condensates. Finally, we discuss how biomolecular condensates modulate stress responses and how they might be used as targets for biotechnological efforts to improve stress tolerance.
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Affiliation(s)
- Jorge Solis-Miranda
- Institutode Bioquimica Vegetal y Fotosintesis, Consejo Superior de Investigaciones Cientificas (CSIC)-Universidad de Sevilla, 41092 Sevilla, Spain
| | - Monika Chodasiewicz
- Biological and Environmental Science and Engineering Division, Center for Desert Agriculture, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | | | - Alisdair R Fernie
- Max-Planck-Institute of Molecular Plant Physiology, 14476 Potsdam-Golm, Germany
| | - Panagiotis N Moschou
- Department of Plant Biology, Uppsala BioCenter, Swedish University of Agricultural Sciences and Linnean Center for Plant Biology, 75007 Uppsala, Sweden
- Department of Biology, University of Crete, Heraklion 71409, Greece
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, Heraklion 70013, Greece
| | - Peter V Bozhkov
- Department of Molecular Sciences, Uppsala BioCenter, Swedish University of Agricultural Sciences and Linnean Center for Plant Biology, 75007 Uppsala, Sweden
| | - Emilio Gutierrez-Beltran
- Institutode Bioquimica Vegetal y Fotosintesis, Consejo Superior de Investigaciones Cientificas (CSIC)-Universidad de Sevilla, 41092 Sevilla, Spain
- Departamento de Bioquimica Vegetal y Biologia Molecular, Facultad de Biologia, Universidad de Sevilla, 41012 Sevilla, Spain
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Merikallio H, Pincikova T, Kotortsi I, Karimi R, Li CX, Forsslund H, Mikko M, Nyrén S, Lappi-Blanco E, Wheelock ÅM, Kaarteenaho R, Sköld MC. Mucins 3A and 3B Are Expressed in the Epithelium of Human Large Airway. Int J Mol Sci 2023; 24:13546. [PMID: 37686350 PMCID: PMC10487631 DOI: 10.3390/ijms241713546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 08/25/2023] [Accepted: 08/29/2023] [Indexed: 09/10/2023] Open
Abstract
Aberrant mucus secretion is a hallmark of chronic obstructive pulmonary disease (COPD). Expression of the membrane-tethered mucins 3A and 3B (MUC3A, MUC3B) in human lung is largely unknown. In this observational cross-sectional study, we recruited subjects 45-65 years old from the general population of Stockholm, Sweden, during the years 2007-2011. Bronchial mucosal biopsies, bronchial brushings, and bronchoalveolar lavage fluid (BALF) were retrieved from COPD patients (n = 38), healthy never-smokers (n = 40), and smokers with normal lung function (n = 40). Protein expression of MUC3A and MUC3B in bronchial mucosal biopsies was assessed by immunohistochemical staining. In a subgroup of subjects (n = 28), MUC3A and MUC3B mRNAs were quantified in bronchial brushings using microarray. Non-parametric tests were used to perform correlation and group comparison analyses. A value of p < 0.05 was considered statistically significant. MUC3A and MUC3B immunohistochemical expression was localized to ciliated cells. MUC3B was also expressed in basal cells. MUC3A and MUC3B immunohistochemical expression was equal in all study groups but subjects with emphysema had higher MUC3A expression, compared to those without emphysema. Smokers had higher mRNA levels of MUC3A and MUC3B than non-smokers. MUC3A and MUC3B mRNA were higher in male subjects and correlated negatively with expiratory air flows. MUC3B mRNA correlated positively with total cell concentration and macrophage percentage, and negatively with CD4/CD8 T cell ratio in BALF. We concluded that MUC3A and MUC3B in large airways may be a marker of disease or may play a role in the pathophysiology of airway obstruction.
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Affiliation(s)
- Heta Merikallio
- Research Unit of Biomedicine and Internal Medicine, University of Oulu, 90570 Oulu, Finland; (H.M.)
- Center of Internal Medicine and Respiratory Medicine, Medical Research Center Oulu, University Hospital of Oulu, 90220 Oulu, Finland
| | - Terezia Pincikova
- Respiratory Medicine Unit, Department of Medicine Solna, Center for Molecular Medicine, Karolinska Institutet, 171 77 Stockholm, Sweden
- Stockholm CF-Center, Albatross, K56, Karolinska University Hospital Huddinge, 141 86 Stockholm, Sweden
| | - Ioanna Kotortsi
- Respiratory Medicine Unit, Department of Medicine Solna, Center for Molecular Medicine, Karolinska Institutet, 171 77 Stockholm, Sweden
- Department of Respiratory Medicine and Allergy, Karolinska University Hospital, 171 77 Stockholm, Sweden
| | - Reza Karimi
- Respiratory Medicine Unit, Department of Medicine Solna, Center for Molecular Medicine, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Chuan-Xing Li
- Respiratory Medicine Unit, Department of Medicine Solna, Center for Molecular Medicine, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Helena Forsslund
- Respiratory Medicine Unit, Department of Medicine Solna, Center for Molecular Medicine, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Mikael Mikko
- Respiratory Medicine Unit, Department of Medicine Solna, Center for Molecular Medicine, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Sven Nyrén
- Department of Molecular Medicine and Surgery, Division of Radiology, Karolinska Institutet, Karolinska University Hospital Solna, 171 76 Stockholm, Sweden
| | - Elisa Lappi-Blanco
- Cancer and Translational Medicine Research Unit, Department of Pathology, University Hospital of Oulu, Oulu University, 90220 Oulu, Finland
| | - Åsa M. Wheelock
- Respiratory Medicine Unit, Department of Medicine Solna, Center for Molecular Medicine, Karolinska Institutet, 171 77 Stockholm, Sweden
- Department of Respiratory Medicine and Allergy, Karolinska University Hospital, 171 77 Stockholm, Sweden
| | - Riitta Kaarteenaho
- Research Unit of Biomedicine and Internal Medicine, University of Oulu, 90570 Oulu, Finland; (H.M.)
- Center of Internal Medicine and Respiratory Medicine, Medical Research Center Oulu, University Hospital of Oulu, 90220 Oulu, Finland
| | - Magnus C. Sköld
- Respiratory Medicine Unit, Department of Medicine Solna, Center for Molecular Medicine, Karolinska Institutet, 171 77 Stockholm, Sweden
- Department of Respiratory Medicine and Allergy, Karolinska University Hospital, 171 77 Stockholm, Sweden
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Hulander E, Zverkova Sandström T, Beckman Rehnman J, Law L, Söderberg S, Forsblad-d'Elia H. Patients with radiographic axial spondylarthritis have an impaired dietary intake-a cross-sectional study with matched controls from northern Sweden. Arthritis Res Ther 2023; 25:142. [PMID: 37550771 PMCID: PMC10405516 DOI: 10.1186/s13075-023-03126-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 07/26/2023] [Indexed: 08/09/2023] Open
Abstract
BACKGROUND Radiographic axial spondyloarthritis (r-axSpA) is one of the most common chronic inflammatory rheumatic diseases, affecting about 0.2% of the Swedish population. Adequate nutritional intake is essential for maintaining physiological functions. A poor diet increases the risk of developing conditions such as obesity, osteoporosis, and/or atherosclerosis. Diet quality is also theorized to affect systemic inflammation. Dietary habits in patients with r-axSpA are largely unknown. The aims of this study were to assess dietary nutrient intake in r-axSpA patients and examine whether it differs compared to persons without r-axSpA. METHODS r-axSpA patients (modified NY criteria) at the rheumatology clinic in Region Västerbotten, northern Sweden, were invited to take part in the Backbone study which investigates disease severity and comorbidities. In total, 155 patients were included. Nutritional intake was assessed by the semi-quantitative food frequency questionnaire MiniMeal-Q. Controls were collected from the Swedish CArdioPulmonary bioImage Study (n = 30,154), a study that invited participants 50-64 years of age by random selection from the Swedish population register. Out of the 155 r-axSpA patients, 81 were in the same age span. Four controls were identified for each patient, matched on age (± 1 year), sex, and geographic location. Data on dietary intake was available for 319 controls. Statistical comparisons of dietary intake between patients with r-axSpA and controls were done by exact conditional logistic regression analysis, adjusted for country of birth, educational level, single household, weight, smoking status, and energy intake. RESULTS Patients had a comparatively significantly higher energy intake from carbohydrates, a lower fiber density, and a lower intake of marine omega-3 fatty acids. Furthermore, intake of vitamins D, E, and K as well as selenium, folate, calcium, magnesium, phosphorus, potassium, vitamin A, and β-carotene (a precursor of vitamin A and marker of vegetable and fruit intake) was significantly lower among patients compared to controls. CONCLUSIONS Our results suggest that r-axSpA patients have an impaired dietary intake. Notably, intake was lower in several nutrients theorized to have anti-inflammatory properties (fiber density, marine-omega-3 fatty acids, vitamin D, and selenium). We further propose that nutrition screening might be incorporated into the management of r-axSpA patients.
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Affiliation(s)
- Erik Hulander
- Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, PO Box 480, 405 30, Gothenburg, Sweden.
- Department of Gastroenterology and Hepatology, Clinical Nutrition Unit, Sahlgrenska University Hospital, Region Västra Götaland, Gothenburg, Sweden.
| | - Tatiana Zverkova Sandström
- Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, PO Box 480, 405 30, Gothenburg, Sweden
| | | | - Lucy Law
- Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
| | - Stefan Söderberg
- Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
| | - Helena Forsblad-d'Elia
- Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, PO Box 480, 405 30, Gothenburg, Sweden
- Department of Rheumatology, Sahlgrenska University Hospital, Region Västra Götaland, Gothenburg, Sweden
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46
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Wolff U, Åvall M, Gustafsson JE. Challenging the stability of RAN development: Acknowledging PA and Gf in relation to reading. Dyslexia 2023; 29:235-254. [PMID: 37291693 DOI: 10.1002/dys.1745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 05/12/2023] [Accepted: 05/17/2023] [Indexed: 06/10/2023]
Abstract
This study had two overriding goals, (1) examine the stability of rapid automatized naming (RAN) in predicting reading achievement while taking into account two other frequently studied constructs, phonological awareness and fluid intelligence (Gf) and (2) examine the predictive power of RAN measured at age 4 on reading ability. The stable pattern of RAN development found in a previously reported growth model was challenged by relating phonological awareness and Gf to the model. Children (N = 364) were followed from age 4 to age 10. At age 4, Gf related strongly to phonological awareness, which in turn related strongly to RAN. The relations between the RAN measures over time was largely unaffected by the inclusion of Gf and phonological awareness. RAN, Gf and phonological awareness at age 4 independently predicted latent factors reflecting reading-related abilities in grade 1 and grade 4. However, when scrutinizing type of reading measure in grade 4, Gf, phonological awareness and RAN at age 4 predicted both spelling and reading fluency, whereas RAN in grade 2 did not predict spelling but was the strongest predictor of reading fluency.
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Affiliation(s)
- Ulrika Wolff
- Department of Education and Special Education, University of Gothenburg, Gothenburg, Sweden
| | - Malena Åvall
- Department of Education and Special Education, University of Gothenburg, Gothenburg, Sweden
| | - Jan-Eric Gustafsson
- Department of Education and Special Education, University of Gothenburg, Gothenburg, Sweden
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Fu Z, Lundgren P, Pivodic A, Yagi H, Harman JC, Yang J, Ko M, Neilsen K, Talukdar S, Hellström A, Smith LEH. FGF21 via mitochondrial lipid oxidation promotes physiological vascularization in a mouse model of Phase I ROP. Angiogenesis 2023; 26:409-421. [PMID: 36943533 PMCID: PMC10328855 DOI: 10.1007/s10456-023-09872-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 03/04/2023] [Indexed: 03/23/2023]
Abstract
Hyperglycemia in early postnatal life of preterm infants with incompletely vascularized retinas is associated with increased risk of potentially blinding neovascular retinopathy of prematurity (ROP). Neovascular ROP (Phase II ROP) is a compensatory but ultimately pathological response to the suppression of physiological postnatal retinal vascular development (Phase I ROP). Hyperglycemia in neonatal mice which suppresses physiological retinal vascular growth is associated with decreased expression of systemic and retinal fibroblast growth factor 21 (FGF21). FGF21 administration promoted and FGF21 deficiency suppressed the physiological retinal vessel growth. FGF21 increased serum adiponectin (APN) levels and loss of APN abolished FGF21 promotion of physiological retinal vascular development. Blocking mitochondrial fatty acid oxidation also abolished FGF21 protection against delayed physiological retinal vessel growth. Clinically, preterm infants developing severe neovascular ROP (versus non-severe ROP) had a lower total lipid intake with more parenteral and less enteral during the first 4 weeks of life. Our data suggest that increasing FGF21 levels in the presence of adequate enteral lipids may help prevent Phase I retinopathy (and therefore prevent neovascular disease).
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Affiliation(s)
- Zhongjie Fu
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Pia Lundgren
- The Sahlgrenska Centre for Pediatric Ophthalmology Research, Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Aldina Pivodic
- The Sahlgrenska Centre for Pediatric Ophthalmology Research, Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Hitomi Yagi
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA, 02115, USA
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan
| | - Jarrod C Harman
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Jay Yang
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Minji Ko
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Katherine Neilsen
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | | | - Ann Hellström
- The Sahlgrenska Centre for Pediatric Ophthalmology Research, Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Lois E H Smith
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA, 02115, USA.
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Hien TT, Ambite I, Wan MLY, Cavalera M, Esmaeili P, Chaudhuri A, Sabari S, Babjuk M, Svanborg C. Long-term prevention of bladder cancer progression by alpha1-oleate alone or in combination with chemotherapy. Int J Cancer 2023; 153:584-599. [PMID: 36891980 DOI: 10.1002/ijc.34500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 02/10/2023] [Accepted: 02/13/2023] [Indexed: 03/10/2023]
Abstract
Bladder cancer is common and one of the most costly cancer forms, due to a lack of curative therapies. Recently, clinical safety and efficacy of the alpha1-oleate complex was demonstrated in a placebo-controlled study of nonmuscle invasive bladder cancer. Our study investigated if long-term therapeutic efficacy is improved by repeated treatment cycles and by combining alpha1-oleate with low-dose chemotherapy. Rapidly growing bladder tumors were treated by intravesical instillation of alpha1-oleate, Epirubicin or Mitomycin C alone or in combination. One treatment cycle arrested tumor growth, with a protective effect lasting at least 4 weeks in mice receiving 8.5 mM of alpha1-oleate alone or 1.7 mM of alpha-oleate combined with Epirubicin or Mitomycin C. Repeated treatment cycles extended protection, defined by a lack of bladder pathology and a virtual absence of bladder cancer-specific gene expression. Synergy with Epirubicin was detected at the lower alpha1-oleate concentration and in vitro, alpha1-oleate was shown to enhance the uptake and nuclear translocation of Epirubicin, by tumor cells. Effects at the chromatin level affecting cell proliferation were further suggested by reduced BrdU incorporation. In addition, alpha1-oleate triggered DNA fragmentation, defined by the TUNEL assay. The results suggest that bladder cancer development may be prevented long-term in the murine model, by alpha1-oleate alone or in combination with low-dose Epirubicin. In addition, the combination of alpha1-oleate and Epirubicin reduced the size of established tumors. Exploring these potent preventive and therapeutic effects will be of immediate interest in patients with bladder cancer.
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Affiliation(s)
- Tran Thi Hien
- Department of Microbiology, Immunology and Glycobiology, Institute of Laboratory Medicine, Lund University, Lund, Sweden
| | - Ines Ambite
- Department of Microbiology, Immunology and Glycobiology, Institute of Laboratory Medicine, Lund University, Lund, Sweden
| | - Murphy Lam Yim Wan
- Department of Microbiology, Immunology and Glycobiology, Institute of Laboratory Medicine, Lund University, Lund, Sweden
| | - Michele Cavalera
- Department of Microbiology, Immunology and Glycobiology, Institute of Laboratory Medicine, Lund University, Lund, Sweden
| | - Parisa Esmaeili
- Department of Microbiology, Immunology and Glycobiology, Institute of Laboratory Medicine, Lund University, Lund, Sweden
| | - Arunima Chaudhuri
- Department of Microbiology, Immunology and Glycobiology, Institute of Laboratory Medicine, Lund University, Lund, Sweden
| | - Samudra Sabari
- Department of Microbiology, Immunology and Glycobiology, Institute of Laboratory Medicine, Lund University, Lund, Sweden
| | - Marek Babjuk
- Department of Urology, Motol Hospital and Second Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Catharina Svanborg
- Department of Microbiology, Immunology and Glycobiology, Institute of Laboratory Medicine, Lund University, Lund, Sweden
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Totin FA, Togbé DR, Sinzogan A, Karlsson MF. Interactions between the omnivorous bug Nesidiocoris tenuis (Heteroptera: Miridae) and the tomato pests Helicoverpa armigera (Lepidoptera: Noctuidae) and Phthorimaea absoluta (Lepidoptera: Gelechiidae): predation, phytophagy, and prey preference. J Insect Sci 2023; 23:6. [PMID: 37428827 DOI: 10.1093/jisesa/iead056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 05/06/2023] [Accepted: 07/03/2023] [Indexed: 07/12/2023]
Abstract
Nesidiocoris tenuis (Reuter) (Heteroptera: Miridae) is a zoophytophagous bug that can derive nutrients from 3 trophic levels: plants, herbivorous arthropods, and other predators. On tomato, besides damaging the plants as they feed, might the mirid also forage on pest species and repel pests. In greenhouse and laboratory experiments, we investigated the functional response of the bug, its prey preference, and its influence on the oviposition potentials of 2 major pest species Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) and Phthorimaea absoluta Meyrick (Lepidoptera: Gelechiidae) on tomato Solanum lycopersicum L. (Solanaceae). Nesidiocoris tenuis showed a Type II functional response to both prey species. The estimated handling time was higher for H. armigera eggs than for P. absoluta yet N. tenuis attack rates did not differ between the 2 prey species. Nesidiocoris tenuis did not show a preference for 1 species when prey eggs were provided in equal proportions. The feeding on tomato plants by N. tenuis did not affect oviposition by the 2 moth species, as neither species showed a preference for clean or N. tenuis-adult-damaged plants and clean or N. tenuis-nymph-damaged plants. This study shows that N. tenuis can prey upon eggs of both moth species as the 3 species co-occur in tomato fields. However, because of the shorter handling time of P. absoluta eggs by the predator and the higher number of eggs laid by H. armigera, the co-occurrence might be less detrimental to the H. armigera populations compared to P. absoluta.
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Affiliation(s)
- Félicien Abègnonhou Totin
- International Institute of Tropical Agriculture (IITA), 08 BP 0932-Tri Postal, Cotonou, Benin
- Department of Crop Production, Faculty of Agronomic Sciences (FSA), University of Abomey-Calavi (UAC), 03 BP 2819 Cotonou, Benin
| | - Delano Ronald Togbé
- International Institute of Tropical Agriculture (IITA), 08 BP 0932-Tri Postal, Cotonou, Benin
| | - Antonio Sinzogan
- Department of Crop Production, Faculty of Agronomic Sciences (FSA), University of Abomey-Calavi (UAC), 03 BP 2819 Cotonou, Benin
| | - Miriam Frida Karlsson
- International Institute of Tropical Agriculture (IITA), 08 BP 0932-Tri Postal, Cotonou, Benin
- Department of Ecology, Swedish University of Agricultural Sciences (SLU), SE-750 07 Uppsala, Sweden
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Nilvér H, Berg M. The Birth Companions' Experience of the Birthing Room and How It Influences the Supportive Role: A Qualitative Study. HERD 2023; 16:156-167. [PMID: 37113053 PMCID: PMC10328140 DOI: 10.1177/19375867231163336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
AIM To explore birth companions' experience of the birthing room and how it influences their role supporting the woman during labor and birth. BACKGROUND Although support from a birth companion positively affects the outcome of labor and birth, limited research explores how the birthing room influences the companion. This study identifies elements of the birthing room essential for the birth companion to offer optimal support to the woman during labor and birth. METHODS Fifteen birth companions were individually interviewed 2 weeks to 6 months after birth using a semi-structured interview guide. Transcribed interviews were analyzed based on reflexive thematic analysis. RESULTS The findings are captured by one overall theme: creating a supportive birth space in an unfamiliar environment. This creation process is further described by three subthemes: not being in the way, finding one's role, and being close to the birthing woman. CONCLUSIONS The findings illustrate how the birthing room was an unfamiliar environment for the birth companions, but one that they needed in order to give the required support. With slight changes in physical design, the birthing room can become calmer and more private and better help the birth companion fulfill the supportive role.
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Affiliation(s)
- Helena Nilvér
- Institute of Health and Care Sciences, Sahlgrenska Academy, University of Gothenburg, Sweden
| | - Marie Berg
- Institute of Health and Care Sciences, Sahlgrenska Academy, University of Gothenburg, Sweden
- Faculty of Medicine and Community Health, Evangelical University in Africa, Bukavu, Democratic Republic of Congo
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