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Olsson K, González-Padilla E, Janzi S, Stubbendorff A, Borné Y, Ramne S, Ericson U, Sonestedt E. Clusters of carbohydrate-rich foods and associations with type 2 diabetes incidence: a prospective cohort study. Nutr J 2023; 22:71. [PMID: 38111004 PMCID: PMC10726530 DOI: 10.1186/s12937-023-00906-0] [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: 08/09/2023] [Accepted: 12/06/2023] [Indexed: 12/20/2023] Open
Abstract
BACKGROUND About one in ten adults are living with diabetes worldwide. Intake of carbohydrates and carbohydrate-rich foods are often identified as modifiable risk factors for incident type 2 diabetes. However, strong correlation between food variables can make it difficult to identify true associations. The purpose of this study was to identify clusters of carbohydrate-rich foods and analyse their associations with type 2 diabetes incidence in the Malmö Diet and Cancer Study cohort in southern Sweden. METHODS Dietary intake of 26 622 participants was assessed using a validated three-part diet history method: a 7-day food diary, a 168-item food frequency questionnaire, and a 60-minute interview. K-means clustering analysis identified five clusters from 21 food variables. The Cox proportional hazard regression model was applied to calculate hazard ratios (HR) and 95% confidence intervals (CI) of the association between clusters and incident type 2 diabetes. RESULTS The cluster analysis resulted in five clusters; high vegetables/low added sugar, high sugar-sweetened beverages, high juice, high fruit, and high refined carbohydrates/low fruit & vegetables (reference). During mean follow-up of 18 years, 4046 type 2 diabetes cases were identified. After adjustment for potential confounding (including lifestyle, body mass index, and diet), a high fruit cluster (HR 0.86; 95% CI 0.78, 0.94) was inversely associated with type 2 diabetes compared to the reference cluster. No other significant associations were identified. CONCLUSIONS A dietary pattern defined by a high intake of fruits was associated with a lower incidence of type 2 diabetes. The findings provide additional evidence of a potential protective effect from fruit intake in reducing type 2 diabetes risk. Future studies are needed to explore this association further.
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Affiliation(s)
- Kjell Olsson
- Nutritional Epidemiology, Department of Clinical Sciences Malmö, Lund University, Jan Waldenströms gata 35, Malmö, SE-21428, Sweden.
| | - Esther González-Padilla
- Nutritional Epidemiology, Department of Clinical Sciences Malmö, Lund University, Jan Waldenströms gata 35, Malmö, SE-21428, Sweden
| | - Suzanne Janzi
- Nutritional Epidemiology, Department of Clinical Sciences Malmö, Lund University, Jan Waldenströms gata 35, Malmö, SE-21428, Sweden
| | - Anna Stubbendorff
- Nutritional Epidemiology, Department of Clinical Sciences Malmö, Lund University, Jan Waldenströms gata 35, Malmö, SE-21428, Sweden
| | - Yan Borné
- Nutritional Epidemiology, Department of Clinical Sciences Malmö, Lund University, Jan Waldenströms gata 35, Malmö, SE-21428, Sweden
| | - Stina Ramne
- Nutritional Epidemiology, Department of Clinical Sciences Malmö, Lund University, Jan Waldenströms gata 35, Malmö, SE-21428, Sweden
| | - Ulrika Ericson
- Diabetes and Cardiovascular Disease-Genetic Epidemiology, Department of Clinical Sciences Malmö, Lund University, Jan Waldenströms gata 35, Malmö, SE-21428, Sweden
| | - Emily Sonestedt
- Nutritional Epidemiology, Department of Clinical Sciences Malmö, Lund University, Jan Waldenströms gata 35, Malmö, SE-21428, Sweden
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Ramstedt M, Janzi S, Olsson K, González-Padilla E, Ramne S, Borné Y, Ericson U, Sonestedt E. Comparisons of Different Carbohydrate Quality Indices for Risk of Type 2 Diabetes in the Malmö Diet and Cancer Study. Nutrients 2023; 15:3870. [PMID: 37764654 PMCID: PMC10537883 DOI: 10.3390/nu15183870] [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: 08/09/2023] [Revised: 09/01/2023] [Accepted: 09/02/2023] [Indexed: 09/29/2023] Open
Abstract
Carbohydrate quality might be more important than quantity to reduce type 2 diabetes (T2D) risk. Various metrics of carbohydrate quality exist; however, their associations with T2D have only been studied to a limited extent. Consequently, the aim was to investigate the association between four different pre-defined carbohydrate quality indices, with various amounts of fiber (≥1 g) and free sugar (<1 or <2 g) per 10 g of carbohydrates, and T2D risk among 26,622 individuals without diabetes from the Malmö Diet and Cancer cohort. Dietary data were collected through a food diary, diet frequency questionnaire, and interview. After a mean follow-up of 18 years, 4046 cases were identified through registers. After adjusting for potential confounders, no statistically significant associations were found for any of the indices. When excluding individuals with past dietary changes and potential misreporting of energy (36% of the population), lower risk was found for the following intake ratios: 10:1:2 carbohydrate:fiber:free sugar (HR = 0.82; 95% CI = 0.70-0.97), and 10:1&1:2 carbohydrate:fiber and fiber:free sugar, respectively (HR = 0.84; 95% CI = 0.72-0.97). Our findings indicate that adherence to a diet with high amounts of fiber and moderate amounts of free sugar in relation to total carbohydrate intake may be associated with a lower risk of T2D.
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Affiliation(s)
- Michaela Ramstedt
- Nutritional Epidemiology, Department of Clinical Sciences Malmö, Lund University, SE-214 28 Malmö, Sweden (S.J.); (K.O.); (E.G.-P.); (S.R.); (Y.B.)
| | - Suzanne Janzi
- Nutritional Epidemiology, Department of Clinical Sciences Malmö, Lund University, SE-214 28 Malmö, Sweden (S.J.); (K.O.); (E.G.-P.); (S.R.); (Y.B.)
| | - Kjell Olsson
- Nutritional Epidemiology, Department of Clinical Sciences Malmö, Lund University, SE-214 28 Malmö, Sweden (S.J.); (K.O.); (E.G.-P.); (S.R.); (Y.B.)
| | - Esther González-Padilla
- Nutritional Epidemiology, Department of Clinical Sciences Malmö, Lund University, SE-214 28 Malmö, Sweden (S.J.); (K.O.); (E.G.-P.); (S.R.); (Y.B.)
| | - Stina Ramne
- Nutritional Epidemiology, Department of Clinical Sciences Malmö, Lund University, SE-214 28 Malmö, Sweden (S.J.); (K.O.); (E.G.-P.); (S.R.); (Y.B.)
| | - Yan Borné
- Nutritional Epidemiology, Department of Clinical Sciences Malmö, Lund University, SE-214 28 Malmö, Sweden (S.J.); (K.O.); (E.G.-P.); (S.R.); (Y.B.)
| | - Ulrika Ericson
- Diabetes and Cardiovascular Disease—Genetic Epidemiology, Department of Clinical Sciences Malmö, Lund University, SE-214 28 Malmö, Sweden;
| | - Emily Sonestedt
- Nutritional Epidemiology, Department of Clinical Sciences Malmö, Lund University, SE-214 28 Malmö, Sweden (S.J.); (K.O.); (E.G.-P.); (S.R.); (Y.B.)
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Alenius S, Olsson K, Thomasson E, Magnusson L. Health care professionals' experiences and perceptions of health promotion through the health dialogue intervention in the scania region, Sweden: a qualitative interview study. BMC Prim Care 2023; 24:173. [PMID: 37661252 PMCID: PMC10476376 DOI: 10.1186/s12875-023-02133-2] [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: 10/26/2022] [Accepted: 08/21/2023] [Indexed: 09/05/2023]
Abstract
BACKGROUND Cardiovascular disease and type 2 diabetes are among the largest public health challenges in Sweden. Research indicates that a healthy lifestyle can prevent most cases. The health dialogue is an evidence-based public health programme for primary care with positive results in several regions of Sweden. This study aimed to describe health care professionals' experiences and perceptions of health promotion through the health dialogue intervention during the pilot phase in the Scania region of Sweden. METHODS The study consists of 12 individual interviews with health care professionals educated in the health dialogue method, implementing the intervention in Scania. Qualitative content analysis with an inductive approach was used. RESULTS The analysis resulted in 10 sub-categories and the four main categories: A more health-promoting mindset would benefit primary care; Empower individuals; Facilitate sustainable lifestyle changes; Challenges, tools and support for the implementation of the health dialogue. One overarching theme emerged: "Health dialogue, a potential start of a paradigm shift in Swedish primary care". CONCLUSIONS Conclusions imply that the health dialogue is a well-structured method with tools to make health promotion and primary prevention an integrated part of primary care. A respectful and motivating approach during the health dialogue is recommended. It is important to have an ongoing discussion about the approach among the health care professionals. Incorporating the Health Belief Model in the health care professionals' education in the method could increase the focus on self-efficacy during counselling, which could favour the participants' change process.
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Affiliation(s)
- Sara Alenius
- Department of Health Sciences, Faculty of Medicine, Lund University, Box 157, Lund, 221 00, Sweden
| | - Kjell Olsson
- Nutritional Epidemiology, Department of Clinical Sciences Malmö, Lund University, Malmö, SE-21428, Sweden
- Department of Healthcare Management, Region Skåne, Kristianstad, 291 89, Sweden
| | - Ena Thomasson
- Department of Healthcare Management, Region Skåne, Kristianstad, 291 89, Sweden
| | - Lina Magnusson
- Department of Health Sciences, Faculty of Medicine, Lund University, Box 157, Lund, 221 00, Sweden.
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Olsson K, Engman J, Nowinski D, Ramklint M, Frick MA. Cognitive Development in Single-Suture Craniosynostosis - A Systematic Review. Dev Neuropsychol 2023:1-33. [PMID: 37341559 DOI: 10.1080/87565641.2023.2225662] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/22/2023]
Abstract
There is conflicting evidence whether single-suture craniosynostosis (SSC), is linked to adversities of cognitive development. To assess the evidence for a link between SSC and cognition, a systematic literature search was conducted and eligible studies assessed for inclusion by two independent readers. Forty-eight studies met inclusion criteria. Small to medium but persistent effects on both general and some specific cognitive functions across age bands were found in higher quality studies for SSC overall. There was limited evidence for effects related to surgical correction. Methodologies varied substantially and there was a lack of longitudinal studies using broad assessment batteries.
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Affiliation(s)
- K Olsson
- Rehabilitation Medicine, Uppsala University Hospital, Uppsala, Sweden
- Department of Psychology, Uppsala University, Uppsala, Sweden
| | - J Engman
- Rehabilitation Medicine, Uppsala University Hospital, Uppsala, Sweden
- Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
| | - D Nowinski
- Department of Psychology, Uppsala University, Uppsala, Sweden
| | - M Ramklint
- Department of Medical Sciences, Psychiatry, Uppsala University, Uppsala, Sweden
| | - M A Frick
- Department of Medical Sciences, Psychiatry, Uppsala University, Uppsala, Sweden
- Department of Psychology, Stockholm University, Stockholm, Sweden
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Zhang S, Stubbendorff A, Olsson K, Ericson U, Niu K, Qi L, Borné Y, Sonestedt E. Adherence to the EAT-Lancet diet, genetic susceptibility, and risk of type 2 diabetes in Swedish adults. Metabolism 2023; 141:155401. [PMID: 36682448 DOI: 10.1016/j.metabol.2023.155401] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 01/11/2023] [Accepted: 01/14/2023] [Indexed: 01/21/2023]
Abstract
BACKGROUND AND AIMS In 2019, the EAT-Lancet Commission proposed a mainly plant-based diet that nurtures human health and supports environmental sustainability. However, its association with type 2 diabetes (T2D) has not been widely studied, and it remains unclear whether genetic susceptibility for T2D can modify this association. The aim was therefore to investigate the association between the EAT-Lancet diet and risk of T2D and assess whether the association differs by the genetic predisposition to T2D. METHODS A total of 24,494 participants from the Malmö Diet and Cancer study were analyzed. Dietary intake was assessed using a modified diet history methodology, and an EAT-Lancet diet index (range from 0 to 42 points) was constructed based on the EAT-Lancet reference diet. National and local registers were used to identify T2D cases during follow-up. Cox proportional hazards regression model was applied to estimate the association between the EAT-Lancet diet index and risk of T2D. Genetic predisposition to T2D was captured based on 116 single nucleotide polymorphisms. RESULTS During a median of 24.3 years of follow-up, 4197 (17.1 %) T2D cases were documented. Compared with those with the lowest adherence to the EAT-Lancet diet (≤13 points), participants who had the highest adherence (≥23 points) showed an 18 % (95 % CI: 4 %-30 %) lower risk of T2D (P for trend <0.01). There was no significant multiplicative interaction between genetic predisposition to T2D and the EAT-Lancet diet index (P = 0.59). Also, no significant additive interaction between the genetic risk and the EAT-Lancet diet was seen (P = 0.44). The highest risk was observed among the 22.9 % of the individuals with high genetic risk and low EAT-Lancet diet score (HR = 1.79; 95 % CI: 1.63, 1.96). CONCLUSIONS Our findings indicate that high adherence to the EAT-Lancet diet was associated with decreased risk of incident T2D among people with different genetic risks.
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Affiliation(s)
- Shunming Zhang
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, China; Nutritional Epidemiology, Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden.
| | - Anna Stubbendorff
- Nutritional Epidemiology, Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | - Kjell Olsson
- Nutritional Epidemiology, Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | - Ulrika Ericson
- Diabetes and Cardiovascular Disease-Genetic Epidemiology, Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | - Kaijun Niu
- Nutritional Epidemiology Institute and School of Public Health, Tianjin Medical University, Tianjin, China
| | - Lu Qi
- Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA, USA; Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Yan Borné
- Nutritional Epidemiology, Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | - Emily Sonestedt
- Nutritional Epidemiology, Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden.
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Holmlund L, Hornsten C, Hornsten A, Olsson K, Valham F, Hellstrom Angerud K. The effects of illness perceptions on health-related quality of life in patients with atrial fibrillation. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background/Introduction
Health-related quality of life (HRQoL) in patients with atrial fibrillation (AF) is lower compared with the general population, healthy controls, and patients with other cardiovascular diseases. Many factors influence HRQoL in patients with AF negatively. Illness perceptions have been shown to be related to HRQoL in a number of diseases, but, the role of the effect of illness perception on HRQoL in patients with AF is lacking.
Purpose
The aim was to explore the relationship between illness perceptions and HRQoL in patients with AF.
Methods
The present study with a cross-sectional design included 167 patients with AF. Patients scheduled for cardioversion at a University hospital in Sweden, filled in self-reported, validated questionnaires. Illness perception was measured with the Revised Illness Perception Questionnaire (IPQ-r) and HRQoL was measured with the Arrhythmia-Specific questionnaire in Tachycardia and Arrhythmias (ASTA). The illness perception part of IPQ-r consists of seven dimensions (Timeline acute/chronic, Consequences, Emotional Representations, Personal control, Treatment control, Illness coherence, and Timeline cyclic). Dimensions of the IPQ-R with significant correlations with HRQoL were included in a multiple regression model.
Results
The participants consisted of 69.5% men and the mean age for the group was 68,8±10,4. The correlations for the dimensions of illness perception are presented in Table 1. The multiple regression analysis (Table 2) showed that Consequences (p<0,001) and Emotional Representations (p=0,003) were significantly associated with and adversely affected HRQoL. The model explained 35% of the total variance in HRQoL (R2= 0,350, p=0,001).
Conclusion(s)
Emotional representations such as anger, anxiety, depression, and the consequences that patients experience that the condition has on daily life, negatively affect patients with AF. The relationship between illness perception and quality of life, indicates that efforts to change illness perceptions can be useful in improving HRQoL. In addition to information, patients need to be given the opportunity to talk about the disease, about their feelings, and about the consequences that the disease has on daily life. A challenge for healthcare will be to design support for each unique individual based on their illness perceptions.
Funding Acknowledgement
Type of funding sources: Public Institution(s). Main funding source(s): Forskningslyftet, Umea UniversityStrategic Research Area Health Care Sience (SFO-V)
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Affiliation(s)
| | - C Hornsten
- Umea University Hospital, Psychiatry , Umea , Sweden
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Hartmann E, Högberg M, Olsson K, Dahlborn K. Physiological and behavioural responses of Swedish domestic goats and their kids ( Capra hircus) to 15 days of heat exposure. ACTA AGR SCAND A-AN 2021. [DOI: 10.1080/09064702.2020.1869817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- E. Hartmann
- Department of Animal Environment and Health, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - M. Högberg
- Department of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - K. Olsson
- Department of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - K. Dahlborn
- Department of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Uppsala, Sweden
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Risberg A, Larsson A, Olsson K, Lyrenäs S, Sjöquist M. Relationship between urinary albumin and albumin/creatinine ratio during normal pregnancy and pre-eclampsia. Scandinavian Journal of Clinical and Laboratory Investigation 2020; 64:17-23. [PMID: 15025425 DOI: 10.1080/00365510410003714] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Pre-eclampsia is a serious complication of pregnancy and it is important to detect the condition as early as possible. Albuminuria is an important symptom of pre-eclampsia and repeated urine analyses to screen for the condition are part of the standard antenatal care. The purpose of this study was to investigate whether measurement of the urine albumin/creatinine ratio in spot samples could be a complement to the dipstick method and could reduce the need for 24-h urine collections. Urine samples were collected for 24 h in weeks 12, 24 and 36 of pregnancy from both normotensive women and women who developed hypertension or who had pregnancy-induced hypertension (PIH) when they entered the study. The 24-h albumin excretion was significantly correlated to the albumin/creatinine ratio in all measurements (Pearson correlation coefficient). In week 12, the values were: n = 44, r = 0.964, p < 0.001 (normotensive group) and in the PIH group: n = 8, r = 0.789, p < 0.05. In week 24, the correlation values were r = 1.0 and p < 0.001 in both the normotensive group (n = 41) and in the PIH group (n = 11). In week 36 the correlation values were r = 0.791 and p < 0.001 in the normotensive group (n = 39) and r = 1.0 and p < 0.001 in the PIH group (n = 16). Microalbuminuria was defined as urine albumin excretion higher than 30 mg/24 h and this corresponded to an albumin/creatinine ratio of 2.9. Microalbuminuria was found in three persons in the PIH group and in two persons in the normotensive group. Overt albuminuria (> 300 mg/24 h) was found in one of the 46 normotensive women (2%) and in 3 of the 19 PIH women (16%). In all these women the high albumin values had been detected by using the albumin/creatinine ratio method. In conclusion, it has been found that the albumin excretion in urine correlates significantly to the albumin/creatinine ratio during pregnancy. The urinary albumin/creatinine ratio appears to be a good alternative to the dipstick method and to 24-h urine collections.
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Affiliation(s)
- A Risberg
- Department of Nursing and Health Sciences, Mid Sweden University, Ornsköldsvik, Sweden.
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Sogkas G, Hirsch S, Olsson K, Schmidt R, Witte T, Jabonka A, Ernst D. THU0263 LUNG INVOLVEMENT IN PRIMARY SJÖGREN SYNDROME – AN UNDER-DIAGNOSED ENTITY. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.1756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background:Interstitial lung disease (ILD) represents a frequent extra-glandular manifestation of primary Sjögren’s Syndrome (pSS). Limited published data regarding phenotyping and treatment exists. Advances in managing specific ILD phenotypes have not been comprehensively explored in patients with coexisting pSS.Objectives:This retrospective study aimed to phenotype lung diseases occurring in a well-described pSS cohort and describe treatment course and outcomes.Methods:Between April 2018 and September 2019, all pSS patients attending our Outpatient clinic were screened for possible lung involvement. Clinical, laboratory and computer tomography (CT) findings were analysed. Patients were classified according to CT findings into 5 groups: usual interstitial pneumonia (UIP), non-specific interstitial pneumonia (NSIP), desquamative interstitial pneumonia (DIP), combined pulmonary fibrosis and emphysema (CPFE) and unspecific-ILD.Results:Lung involvement was confirmed in 24/240 patients (10%). Clinically manifest pSS occurred later in patients with ILD vs. non-ILD (53.2 [42.0-61.7]vs.62.3 [55.6-68.8] years; p=0.0016). The commonest phenotype was UIP n=10 (41%), followed by NSIP n=7 (29%), DIP n=2 (8%), CPFE n=2 (8%) and unspecific-ILD n=3 (13%). Forced vital capacity (FVC) and carbon monoxide diffusion capacity (DLCO) appeared lower in UIP and DIP, without reaching a significant difference. Treatment focused universally on intensified immunosuppression, with 12/24 patients (50%) receiving cyclophosphamide. No anti-fibrotic treatments were used. Follow-up was median 13.2 [7.9-72.3] months, during which 6/24 (25%) patients exhibited a further decline in FVC. No deaths occurred.Conclusion:Lung involvement in pSS is heterogeneous. Better phenotyping and tailored treatment may improve outcomes and requires further evaluation in larger prospective studies.Disclosure of Interests:None declared
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González-Padilla E, A Dias J, Ramne S, Olsson K, Nälsén C, Sonestedt E. Association between added sugar intake and micronutrient dilution: a cross-sectional study in two adult Swedish populations. Nutr Metab (Lond) 2020; 17:15. [PMID: 32071610 PMCID: PMC7011604 DOI: 10.1186/s12986-020-0428-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Accepted: 01/13/2020] [Indexed: 12/19/2022] Open
Abstract
Background The evidence on the impact of high sugar consumption on micronutrient dilution does not yet allow for the establishment of clear thresholds of consumption. To establish upper and lower limit intake thresholds for added sugar, more studies from different countries and multiple populations are needed. The aim of this study was to examine the association between the intakes of added sugar and various micronutrients among the adult Swedish population across almost two decades. Methods The data were obtained from the samples from two populations: 1) Riksmaten Adults, a national dietary survey (n = 1797, 44% male, aged 18–80 years, data collection from 2010 to 11) that assessed dietary intake using a 4-day web-based food diary; and 2) the Malmö Diet and Cancer Study, a population-based cohort study (n = 12,238, 45% male, aged 45–68 years, data collection from 1991 to 1994) that assessed dietary intake via a combination of a 7-day food diary, a food frequency questionnaire and an interview. The mean daily intake of nine micronutrients (calcium, folate, iron, magnesium, potassium, selenium, vitamin C, vitamin D, and zinc), adjusted for age, sex, BMI and energy intake, were examined across six added-sugar-intake groups (< 5%E, 5–7.5%E, 7.5–10%E, 10–15%E, 15–20%E, and > 20%E). Results We observed significant inverse associations between the intake of added sugar and the intake of all micronutrients in both populations. The associations were linear; however, we could not determine the threshold of added sugar intake beyond which the micronutrient intake was clearly compromised. Conclusions These findings suggest that in two Swedish populations the higher the intake of added sugar in the diet, the more likely it is that the intake of micronutrients will be compromised, in two Swedish populations. However, although the trends are significant and consistent with those obtained in other studies on the subject, future studies are needed in order to build the necessary scientific knowledge to establish a threshold of added sugar intake based on micronutrient dilution.
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Affiliation(s)
- Esther González-Padilla
- 1Nutritional Epidemiology Group, Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | - Joana A Dias
- 1Nutritional Epidemiology Group, Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | - Stina Ramne
- 1Nutritional Epidemiology Group, Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | - Kjell Olsson
- 1Nutritional Epidemiology Group, Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | | | - Emily Sonestedt
- 1Nutritional Epidemiology Group, Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
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Hellenás KE, Branzell C, Poutanen H, Suortti T, Kaario R, Gjerstad KO, Brekke T, Jensen AM, Larsen K, Knuthsen P, Halén B, Olsson K, Ingólfsdóttir; IK, Pittet A. Liquid Chromatographic Determination of the Glycoalkaloids α-Solanine and α-Chaconine in Potato Tubers: NMKL Interlaboratory Study. J AOAC Int 2020. [DOI: 10.1093/jaoac/80.3.549] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Twelve laboratories participated in a collaborative study to evaluate precision parameters of a liquid chromatographic method for analysis of the glycoalkaloids α-solanine and α-chaconine in potato tubers. Samples consisted of frozen potato tuber homogenates distributed as 3 blind duplicates and 3 split-level pairs. The analytical method included aqueous extraction, workup on disposable solidphase extraction cartridges, and reversed-phase chromatography with photometric detection at 202 nm. Results for α-solanine and α-chaconine were received from 10 and 9 laboratories, respectively. Relative standard deviations for reproducibilo ity for α-solanine and α-chaconine were similar, ranging from 8 to 13% in the applied concentration range of 12 to 260 mg/kg fresh weight.
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Affiliation(s)
- Karl-Erik Hellenás
- National Food Administration, Chemistry Division 3, Box 622, S-751 26 Uppsala, Sweden
| | - Carina Branzell
- National Food Administration, Chemistry Division 3, Box 622, S-751 26 Uppsala, Sweden
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Ius F, Fegbeutel C, Kühn C, Tudorache I, Warnecke G, Olsson K, Hoeper M, Haverich A, Cebotari S. Perioperative Extracorporeal Membrane Oxygenation-Based Protocol for Massive Acute Pulmonary Embolism. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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13
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Hinrichs J, Maschke S, Winther H, Meine T, Werncke T, Olsson K, Hoeper M, Baumgart J, Wacker F, Renne J, Meyer B. 03:00 PM Abstract No. 151 2D parametric parenchymal blood flow (2D-PPBF) measurements for monitoring of balloon pulmonary angioplasty (BPA) as treatment of chronic thromboembolic pulmonary hypertension (CTEPH). J Vasc Interv Radiol 2019. [DOI: 10.1016/j.jvir.2018.12.202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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14
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Ramne S, Alves Dias J, González-Padilla E, Olsson K, Lindahl B, Engström G, Ericson U, Johansson I, Sonestedt E. Association between added sugar intake and mortality is nonlinear and dependent on sugar source in 2 Swedish population-based prospective cohorts. Am J Clin Nutr 2019; 109:411-423. [PMID: 30590448 DOI: 10.1093/ajcn/nqy268] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2018] [Accepted: 09/07/2018] [Indexed: 02/07/2023] Open
Abstract
Background Although sugar consumption has been associated with several risk factors for cardiometabolic diseases, evidence for harmful long-term effects is lacking. In addition, most studies have focused on sugar-sweetened beverages (SSBs), not sugar per se. Objective The aim of this study was to examine the associations between added and free sugar intake, intake of different sugar sources, and mortality risk. Methods Two prospective population-based cohorts were examined: the Malmö Diet and Cancer Study (MDCS; n = 24,272), which collected dietary data by combining a food diary, interview, and food-frequency questionnaire (FFQ), and the Northern Swedish Health and Disease Study (NSHDS; n = 24,475), which assessed diet with an FFQ. Sugar intakes defined as both added and free sugar and different sugar sources were examined. The associations with mortality were examined using a multivariable Cox proportional hazards regression. Results Higher sugar consumption was associated with a less favorable lifestyle in general. The lowest mortality risk was found with added sugar intakes between 7.5% and 10% of energy (E%) intake in both cohorts. Intakes >20E% were associated with a 30% increased mortality risk, but increased risks were also found at intakes <5E% [23% in the MDCS and 9% (nonsignificant) in the NSHDS]. Similar U-shaped associations were found for both cardiovascular and cancer mortality in the MDCS. By separately analyzing the different sugar sources, the intake of SSBs was positively associated with mortality, whereas the intake of treats was inversely associated. Conclusions Our findings indicate that a high sugar intake is associated with an increased mortality risk. However, the risk is also increased among low sugar consumers, although they have a more favorable lifestyle in general. In addition, the associations are dependent on the type of sugar source.
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Affiliation(s)
| | | | | | | | - Bernt Lindahl
- Department of Public Health and Clinical Medicine, Occupational and Environmental Medicine
| | | | - Ulrika Ericson
- Diabetes and Cardiovascular Disease-Genetic Epidemiology, Department of Clinical Sciences Malmö, Lund University, Lund, Sweden
| | - Ingegerd Johansson
- Departments of Odontology and Nutritional Research, Umeå University, Umeå, Sweden
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Grothusen C, Lankeit M, Olsson K, Panholzer B, Haneya A, Cremer J. Akute Lungenembolie. Z Herz- Thorax- Gefäßchir 2019. [DOI: 10.1007/s00398-018-0286-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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16
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Marra AM, Benjamin N, Eichstaedt C, Egenlauf B, Fischer C, Gall H, Ghofrani HA, Halank M, Hoeper MM, Lange T, Olsson K, Gruenig E. 3020Effects on Right Ventricular size and function by Riociguat in Pulmonary Arterial Hypertension and Chronic Thromboembolic Pulmonary Hypertension (The RIVER Study). Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.3020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- A M Marra
- Centre for Pulmonary Hypertension, Thoraxklinik at Heidelberg University Hospital, Heidelberg, Germany
| | - N Benjamin
- Centre for Pulmonary Hypertension, Thoraxklinik at Heidelberg University Hospital, Heidelberg, Germany
| | - C Eichstaedt
- Centre for Pulmonary Hypertension, Thoraxklinik at Heidelberg University Hospital, Heidelberg, Germany
| | - B Egenlauf
- Centre for Pulmonary Hypertension, Thoraxklinik at Heidelberg University Hospital, Heidelberg, Germany
| | - C Fischer
- University Hospital of Heidelberg, Institute of Human Genetics, Heidelberg, Germany
| | - H Gall
- Justus-Liebig University of Giessen, Internal Medicine, Giessen, Germany
| | - H A Ghofrani
- Justus-Liebig University of Giessen, Internal Medicine, Giessen, Germany
| | - M Halank
- University Hospital Dresden, Department of Internal Medicine I, Dresden, Germany
| | - M M Hoeper
- Hannover Medical School, Department of Respiratory Medicine,, Hannover, Germany
| | - T Lange
- University Hospital Regensburg, Internal Medicine II, Division of Pneumology, Regensburg, Germany
| | - K Olsson
- Hannover Medical School, Department of Respiratory Medicine,, Hannover, Germany
| | - E Gruenig
- Centre for Pulmonary Hypertension, Thoraxklinik at Heidelberg University Hospital, Heidelberg, Germany
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Lilja M, Mandić M, Apró W, Melin M, Olsson K, Rosenborg S, Gustafsson T, Lundberg TR. High doses of anti-inflammatory drugs compromise muscle strength and hypertrophic adaptations to resistance training in young adults. Acta Physiol (Oxf) 2018; 222. [PMID: 28834248 DOI: 10.1111/apha.12948] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 07/20/2017] [Accepted: 08/17/2017] [Indexed: 01/14/2023]
Abstract
AIMS This study tested the hypothesis that high doses of anti-inflammatory drugs would attenuate the adaptive response to resistance training compared with low doses. METHODS Healthy men and women (aged 18-35 years) were randomly assigned to daily consumption of ibuprofen (IBU; 1200 mg; n = 15) or acetylsalicylic acid (ASA; 75 mg; n = 16) for 8 weeks. During this period, subjects completed supervised knee-extensor resistance training where one leg was subjected to training with maximal volitional effort in each repetition using a flywheel ergometer (FW), while the other leg performed conventional (work-matched across groups) weight-stack training (WS). Before and after training, muscle volume (MRI) and strength were assessed, and muscle biopsies were analysed for gene and protein expression of muscle growth regulators. RESULTS The increase in m. quadriceps volume was similar between FW and WS, yet was (averaged across legs) greater in ASA (7.5%) compared with IBU (3.7%, group difference 34 cm3 ; P = 0.029). In the WS leg, muscle strength improved similarly (11-20%) across groups. In the FW leg, increases (10-23%) in muscle strength were evident in both groups yet they were generally greater (interaction effects P < 0.05) for ASA compared with IBU. While our molecular analysis revealed several training effects, the only group interaction (P < 0.0001) arose from a downregulated mRNA expression of IL-6 in IBU. CONCLUSION Maximal over-the-counter doses of ibuprofen attenuate strength and muscle hypertrophic adaptations to 8 weeks of resistance training in young adults. Thus, young individuals using resistance training to maximize muscle growth or strength should avoid excessive intake of anti-inflammatory drugs.
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Affiliation(s)
- M. Lilja
- Division of Clinical Physiology; Department of Laboratory Medicine; Karolinska Institutet; Karolinska University Hospital; Stockholm Sweden
- Unit of Clinical Physiology; Karolinska University Hospital; Stockholm Sweden
| | - M. Mandić
- Division of Clinical Physiology; Department of Laboratory Medicine; Karolinska Institutet; Karolinska University Hospital; Stockholm Sweden
- Unit of Clinical Physiology; Karolinska University Hospital; Stockholm Sweden
| | - W. Apró
- Åstrand Laboratory; Swedish School of Sport and Health Sciences; Stockholm Sweden
| | - M. Melin
- Division of Clinical Physiology; Department of Laboratory Medicine; Karolinska Institutet; Karolinska University Hospital; Stockholm Sweden
- Unit of Clinical Physiology; Karolinska University Hospital; Stockholm Sweden
- Department of Cardiology; Karolinska Institutet; Karolinska University Hospital; Stockholm Sweden
| | - K. Olsson
- Division of Clinical Physiology; Department of Laboratory Medicine; Karolinska Institutet; Karolinska University Hospital; Stockholm Sweden
- Unit of Clinical Physiology; Karolinska University Hospital; Stockholm Sweden
| | - S. Rosenborg
- Division of Clinical Pharmacology; Department of Laboratory Medicine; Karolinska Institutet; Stockholm Sweden
| | - T. Gustafsson
- Division of Clinical Physiology; Department of Laboratory Medicine; Karolinska Institutet; Karolinska University Hospital; Stockholm Sweden
- Unit of Clinical Physiology; Karolinska University Hospital; Stockholm Sweden
| | - T. R. Lundberg
- Division of Clinical Physiology; Department of Laboratory Medicine; Karolinska Institutet; Karolinska University Hospital; Stockholm Sweden
- Unit of Clinical Physiology; Karolinska University Hospital; Stockholm Sweden
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Ius F, Fegbeutel C, Kühn C, Tudorache I, Warnecke G, Roumieh M, Koigeldiyev N, Olsson K, Hoeper M, Haverich A, Cebotari S. Perioperative Extracorporeal Membrane Oxygenation-Based Protocol for Acute Pulmonary Embolectomy: Technique and Preliminary Results. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.1030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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19
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Hinrichs J, Werncke T, Hoepker M, Olsson K, Wacker F, Brunkhorst T, Sohns J, Meyer B. C-Arm CT (CACT) bei Patienten mit chronisch thromboembolischer pulmonaler Hypertonie (CTEPH) und positivem V/Q SPECT/CT: Evaluation der diagnostischen Zusatzinformation. ROFO-FORTSCHR RONTG 2017. [DOI: 10.1055/s-0037-1600239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- J Hinrichs
- MHH, Institut für Diagnostische und Interventionelle Radiologie, Hannover
| | - T Werncke
- MHH, Institut für Diagnostische und Interventionelle Radiologie, Hannover
| | - M Hoepker
- MHH, Klinik für Pneumologie, Hannover
| | - K Olsson
- MHH, Klinik für Pneumologie, Hannover
| | - F Wacker
- MHH, Institut für Diagnostische und Interventionelle Radiologie, Hannover
| | | | - J Sohns
- MHH, Klinik für Nuklearmedizin, Hannover
| | - B Meyer
- MHH, Institut für Diagnostische und Interventionelle Radiologie, Hannover
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Maschke S, Meyer B, Hoeper M, Olsson K, Wacker F, Hinrichs J. Evaluation der 2D-Perfusions-Angiografie bei Patienten mit chronischer thromboembolischer pulmonaler Hypertonie (CTEPH) vor und nach pulmonaler Ballonangioplastie (BPA). ROFO-FORTSCHR RONTG 2017. [DOI: 10.1055/s-0037-1600288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- S Maschke
- Medizinische Hochschule Hannover, Radiologie, Hannover
| | - B Meyer
- Medizinische Hochschule Hannover, Radiologie, Hannover
| | - M Hoeper
- Medizinische Hochschule Hannover, Pneumologie, Hannover
| | - K Olsson
- Medizinische Hochschule Hannover, Pneumologie, Hannover
| | - F Wacker
- Medizinische Hochschule Hannover, Radiologie, Hannover
| | - J Hinrichs
- Medizinische Hochschule Hannover, Radiologie, Hannover
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Grünig E, Benjamin N, Krüger U, Kaemmerer H, Harutyunova S, Olsson K, Ulrich S, Gerhardt F, Neurohr C, Sablotzki A, Halank M, Kabitz HJ, Thimm G, Fliegel KG, Klose H. Allgemeine und supportive Therapie der pulmonal arteriellen Hypertonie: Empfehlungen der Kölner Konsensus Konferenz 2016. Dtsch Med Wochenschr 2016; 141:S26-S32. [DOI: 10.1055/s-0042-114525] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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22
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Wehling M, Ashton C, Ekpo E, Gwynn S, Laville M, Olsson K, Spring M. Filling the Gap – Improving Awareness and Practice in Hyponatraemia and the Syndrome of Inappropriate Antidiuretic Hormone Secretion (SIADH) in the Older Patient: A European Consensus View. Drug Res (Stuttg) 2016; 67:5-12. [DOI: 10.1055/s-0042-115015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- M. Wehling
- Department of Clinical Pharmacology, Center for Geriatric Pharmacology in Mannheim
| | - C. Ashton
- South Warwickshire NHS Foundation Trust, Warwick, UK
| | - E. Ekpo
- Lewisham and Greenwich NHS Trust, London, UK
| | - S. Gwynn
- SG Market Access Ltd, Chichester, UK
| | - M. Laville
- Department of Nephrology, Lyon Sud University Hospital, Pierre Benite, France
| | | | - M. Spring
- Kingston Hospital, NHS Foumdation Trust, Kingston, UK
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23
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Hinrichs J, Werncke T, Kaireit T, Hoeper M, Olsson K, Wacker F, Falck CV, Schatka I, Meyer B. Einschätzung des Schweregrads der chronisch thromboembolischen pulmonalen Hypertonie (CTEPH) mittels Single Photon Emission Computed Tomography (SPECT) im Vergleich zur C-Arm CT (CACT). ROFO-FORTSCHR RONTG 2016. [DOI: 10.1055/s-0036-1581412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Andersen KH, Berge T, Gonçalves RJ, Hartvig M, Heuschele J, Hylander S, Jacobsen NS, Lindemann C, Martens EA, Neuheimer AB, Olsson K, Palacz A, Prowe AEF, Sainmont J, Traving SJ, Visser AW, Wadhwa N, Kiørboe T. Characteristic Sizes of Life in the Oceans, from Bacteria to Whales. Ann Rev Mar Sci 2015; 8:217-241. [PMID: 26163011 DOI: 10.1146/annurev-marine-122414-034144] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The size of an individual organism is a key trait to characterize its physiology and feeding ecology. Size-based scaling laws may have a limited size range of validity or undergo a transition from one scaling exponent to another at some characteristic size. We collate and review data on size-based scaling laws for resource acquisition, mobility, sensory range, and progeny size for all pelagic marine life, from bacteria to whales. Further, we review and develop simple theoretical arguments for observed scaling laws and the characteristic sizes of a change or breakdown of power laws. We divide life in the ocean into seven major realms based on trophic strategy, physiology, and life history strategy. Such a categorization represents a move away from a taxonomically oriented description toward a trait-based description of life in the oceans. Finally, we discuss life forms that transgress the simple size-based rules and identify unanswered questions.
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Affiliation(s)
- K H Andersen
- VKR Centre for Ocean Life and
- National Institute of Aquatic Resources, Technical University of Denmark, 2920 Charlottenlund, Denmark;
| | - T Berge
- VKR Centre for Ocean Life and
- Marine Biological Section, University of Copenhagen, 3000 Helsingør, Denmark
| | - R J Gonçalves
- VKR Centre for Ocean Life and
- National Institute of Aquatic Resources, Technical University of Denmark, 2920 Charlottenlund, Denmark;
- Consejo Nacional de Investigaciones Científicas y Técnicas, C1033AAJ Buenos Aires, Argentina
- Estación de Fotobiología Playa Unión, 9103 Rawson, Argentina
| | - M Hartvig
- National Institute of Aquatic Resources, Technical University of Denmark, 2920 Charlottenlund, Denmark;
- Center for Macroecology, Evolution, and Climate, Natural History Museum of Denmark, University of Copenhagen, 2100 Copenhagen, Denmark
- Systemic Conservation Biology, J.F. Blumenbach Institute of Zoology and Anthropology, University of Göttingen, 37073 Göttingen, Germany
| | - J Heuschele
- VKR Centre for Ocean Life and
- National Institute of Aquatic Resources, Technical University of Denmark, 2920 Charlottenlund, Denmark;
| | - S Hylander
- National Institute of Aquatic Resources, Technical University of Denmark, 2920 Charlottenlund, Denmark;
- Centre for Ecology and Evolution in Microbial Model Systems (EEMiS), Linnaeus University, 391 82 Kalmar, Sweden
| | - N S Jacobsen
- VKR Centre for Ocean Life and
- National Institute of Aquatic Resources, Technical University of Denmark, 2920 Charlottenlund, Denmark;
| | - C Lindemann
- National Institute of Aquatic Resources, Technical University of Denmark, 2920 Charlottenlund, Denmark;
| | - E A Martens
- VKR Centre for Ocean Life and
- National Institute of Aquatic Resources, Technical University of Denmark, 2920 Charlottenlund, Denmark;
- Department of Biomedical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
| | - A B Neuheimer
- National Institute of Aquatic Resources, Technical University of Denmark, 2920 Charlottenlund, Denmark;
- Center for Macroecology, Evolution, and Climate, Natural History Museum of Denmark, University of Copenhagen, 2100 Copenhagen, Denmark
- Department of Oceanography, University of Hawai'i at Mānoa, Honolulu, Hawaii 96822
| | - K Olsson
- VKR Centre for Ocean Life and
- National Institute of Aquatic Resources, Technical University of Denmark, 2920 Charlottenlund, Denmark;
| | - A Palacz
- National Institute of Aquatic Resources, Technical University of Denmark, 2920 Charlottenlund, Denmark;
| | - A E F Prowe
- VKR Centre for Ocean Life and
- National Institute of Aquatic Resources, Technical University of Denmark, 2920 Charlottenlund, Denmark;
- GEOMAR Helmholtz Centre for Ocean Research Kiel, 24148 Kiel, Germany
| | - J Sainmont
- VKR Centre for Ocean Life and
- National Institute of Aquatic Resources, Technical University of Denmark, 2920 Charlottenlund, Denmark;
| | - S J Traving
- VKR Centre for Ocean Life and
- Marine Biological Section, University of Copenhagen, 3000 Helsingør, Denmark
| | - A W Visser
- VKR Centre for Ocean Life and
- National Institute of Aquatic Resources, Technical University of Denmark, 2920 Charlottenlund, Denmark;
| | - N Wadhwa
- VKR Centre for Ocean Life and
- Department of Physics, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
| | - T Kiørboe
- VKR Centre for Ocean Life and
- National Institute of Aquatic Resources, Technical University of Denmark, 2920 Charlottenlund, Denmark;
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Olsson K, Sadasivan R, Weaver J, Sen S, Modi A. FRI0305 Physicians' Perspective on the Reasons for Non-Treatment of Osteoporosis Among Postmenopausal Patients in France – An Observational Study. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.2289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Sadasivan R, Olsson K, Weaver J, Sen S, Modi A. SAT0298 Patients' Perspective on the Reasons for Non-Treatment of Osteoporosis Among Postmenopausal Patients in France–An Observational Study. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.4888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Jaako P, Debnath S, Olsson K, Zhang Y, Flygare J, Lindström MS, Bryder D, Karlsson S. Disruption of the 5S RNP-Mdm2 interaction significantly improves the erythroid defect in a mouse model for Diamond-Blackfan anemia. Leukemia 2015; 29:2221-9. [PMID: 25987256 DOI: 10.1038/leu.2015.128] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Revised: 04/10/2015] [Accepted: 05/06/2015] [Indexed: 02/07/2023]
Abstract
Diamond-Blackfan anemia (DBA) is a congenital erythroid hypoplasia caused by haploinsufficiency of genes encoding ribosomal proteins (RPs). Perturbed ribosome biogenesis in DBA has been shown to induce a p53-mediated ribosomal stress response. However, the mechanisms of p53 activation and its relevance for the erythroid defect remain elusive. Previous studies have indicated that activation of p53 is caused by the inhibition of mouse double minute 2 (Mdm2), the main negative regulator of p53, by the 5S ribonucleoprotein particle (RNP). Meanwhile, it is not clear whether this mechanism solely mediates the p53-dependent component found in DBA. To approach this question, we crossed our mouse model for RPS19-deficient DBA with Mdm2(C305F) knock-in mice that have a disrupted 5S RNP-Mdm2 interaction. Upon induction of the Rps19 deficiency, Mdm2(C305F) reversed the p53 response and improved expansion of hematopoietic progenitors in vitro, and ameliorated the anemia in vivo. Unexpectedly, disruption of the 5S RNP-Mdm2 interaction also led to selective defect in erythropoiesis. Our findings highlight the sensitivity of erythroid progenitor cells to aberrations in p53 homeostasis mediated by the 5S RNP-Mdm2 interaction. Finally, we provide evidence indicating that physiological activation of the 5S RNP-Mdm2-p53 pathway may contribute to functional decline of the hematopoietic system in a cell-autonomous manner over time.
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Affiliation(s)
- P Jaako
- Molecular Medicine and Gene Therapy, Lund Stem Cell Center, Lund University, Lund, Sweden.,Molecular Hematology, Lund Stem Cell Center, Lund University, Lund, Sweden
| | - S Debnath
- Molecular Medicine and Gene Therapy, Lund Stem Cell Center, Lund University, Lund, Sweden
| | - K Olsson
- Molecular Medicine and Gene Therapy, Lund Stem Cell Center, Lund University, Lund, Sweden
| | - Y Zhang
- Department of Radiation Oncology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - J Flygare
- Molecular Medicine and Gene Therapy, Lund Stem Cell Center, Lund University, Lund, Sweden
| | - M S Lindström
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden
| | - D Bryder
- Molecular Hematology, Lund Stem Cell Center, Lund University, Lund, Sweden
| | - S Karlsson
- Molecular Medicine and Gene Therapy, Lund Stem Cell Center, Lund University, Lund, Sweden
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Borland M, Rosenkvist A, Henriksson M, Olsson K, Sundberg H, Philip Wigh J, Corin M, Landh L, Grüner Svealv B, Scharin Tang M, Andersson L, Nordeman L, Bergfeldt L, Cider Å. Should supervised exercise or physical activity counseling be used to improve physical fitness in elderly patients with permanent atrial fibrillation? Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.316] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Hinrichs J, Marquardt S, Renne J, Falck CV, Hoeper M, Olsson K, Wacker F, Meyer B. Chronisch thromboembolische pulmonale Hypertonie: Diagnostischer Zugewinn durch C-Arm CT im Vergleich zur digitalen Subtraktionsangiografie. ROFO-FORTSCHR RONTG 2015. [DOI: 10.1055/s-0035-1550974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Schönfeld C, Cebotari S, Hinrichs J, Renne J, Kaireit T, Gutberlet M, Voskrebenzev A, Hoeper M, Welte T, Olsson K, Wacker F, Haverich A, Vogel-Claussen J. Quantifizierung der regionalen Lungengewebsdurchblutung und kardialer Funktionsparameter mittels MRT zur Beurteilung der hämodynamischen Veränderungen vor und 12 Tage nach pulmonaler Endarteriektomie. ROFO-FORTSCHR RONTG 2015. [DOI: 10.1055/s-0035-1551381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Hinrichs J, Renne J, Flack CV, Hoeper M, Olsson K, Wacker F, Meyer B. Vergleich von C-Arm CT und Multi-Detektor CT bei Patienten mit chronisch thromboembolischer pulmonaler Hypertonie. ROFO-FORTSCHR RONTG 2015. [DOI: 10.1055/s-0035-1551377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Justesen US, Acar Z, Olsson K, Jensen TG, Kerrn MB, Skov RL, Gahrn-Hansen B. Comparison of Rosco Neo-Sensitabs with Oxoid paper disks in EUCAST disk diffusion antimicrobial susceptibility testing on Mueller-Hinton agar. Eur J Clin Microbiol Infect Dis 2012; 32:621-5. [PMID: 23232977 DOI: 10.1007/s10096-012-1785-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2012] [Accepted: 11/18/2012] [Indexed: 11/28/2022]
Abstract
This study compared Neo-Sensitabs with Oxoid paper disks using the European Committee on Antimicrobial Susceptibility Testing (EUCAST) disk diffusion antimicrobial susceptibility test on Mueller-Hinton agar. The EUCAST-recommended quality control strains (Escherichia coli ATCC 25922, Pseudomonas aeruginosa ATCC 27853, Staphylococcus aureus ATCC 29213 and Enterococcus faecalis ATCC 29212) (Part I) and clinical isolates (Part II) were investigated. In Part I of the study, 27 combinations of antimicrobial agents were tested on four quality control strains repeatedly up to 60 times and zone diameters of tablets and disks were compared. In Part II of the study, 351 clinical isolates were included to cover a broad range of species, as well as resistance mechanisms. In Part I, four major deviations (>1 mm outside quality control ranges) were observed with Neo-Sensitabs. In one case with P. aeruginosa ATCC 27853 (meropenem), there was a corresponding major deviation (2 mm) with the Oxoid disk. The three remaining major deviations with Neo-Sensitabs were observed with meropenem (2 mm) in E. coli ATCC 25922 and with ciprofloxacin (2 mm) and gentamicin (3 mm) in P. aeruginosa ATCC 27853. For Oxoid disks, there were only minor deviations (=1 mm outside quality control ranges) in these three cases. In Part II, there were six discrepancies, susceptible versus resistant, in 3,533 comparisons between the two methods with the clinical isolates. The Rosco Neo-Sensitabs appear to be a possible alternative to Oxoid paper disks for EUCAST disk diffusion antimicrobial susceptibility testing on Mueller-Hinton agar.
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Affiliation(s)
- U S Justesen
- Department of Clinical Microbiology, Odense University Hospital, Winsløwparken 21, 2, 5000 Odense C, Denmark.
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Abstract
BACKGROUND Plasminogen is the zymogen form of plasmin and the precursor of angiostatin. It has been implicated in a variety of disease states, including thrombosis, bleeding and cancers. The native plasminogen, known as Glu-plasminogen, contains seven domains comprising the N-terminal peptide domain (NTP), five kringle domains (K1-K5) and the C-terminal serine protease domain (SP). Previous studies have established that the lysine binding site (LBS) of the conserved kringle domains plays a crucial role in mediating the regulation of plasminogen function. However, details of the related conformational mechanism are unknown. OBJECTIVES We aim to understand in more detail the conformational mechanism of plasminogen activation involving the kringles. METHODS We crystallized the native plasminogen under physiologically relevant conditions and determined the structure at 3.5 Å resolution. We performed structural analyses and related these to the literature data to gain critical understanding of the plasminogen activation. RESULTS AND CONCLUSIONS The structure reveals the precise architecture of the quaternary complex. It shows that the Glu-plasminogen renders its compact form as an activation-resistant conformation for the proteolytic activation. The LBSs of all kringles, except K1, are engaged in intra-molecular interactions while only K1-LBS is readily available for ligand binding or receptor anchorage. The structure also provides insights into the interactions between plasminogen and α2-antiplasmin, the primary physiological inhibitor of plasmin. Furthermore, the data presented explain why a conformational transition to the open form is necessary for plasminogen activation as well as angiostatin generation, and provide a rationale for the functional hierarchy of the different kringles.
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Affiliation(s)
- Y Xue
- Discovery Sciences, AstraZeneca R&D Mölndal, Mölndal, Sweden.
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Smith KD, Wehner JGA, Graham RW, Randolph JE, Ramirez AM, Venzor GM, Olsson K, Vilela MF, Smith EPG. High operating temperature mid-wavelength infrared HgCdTe photon trapping focal plane arrays. ACTA ACUST UNITED AC 2012. [DOI: 10.1117/12.921480] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Tudorache I, Kühn C, Wiesner O, Olsson K, Hadem J, Sommer W, Bara C, Welte T, Gottlieb J, Hoeper M, Haverich A, Warnecke G. 218 Not the Right, but the Left Ventricle Causes the Problem after Lung Transplantation for Pulmonary Artery Hypertension – Awake ECMO for Postoperative LV Remodelling. J Heart Lung Transplant 2012. [DOI: 10.1016/j.healun.2012.01.217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Nickel N, Golpon H, Greer M, Knudsen L, Olsson K, Westerkamp V, Welte T, Hoeper MM. The prognostic impact of follow-up assessments in patients with idiopathic pulmonary arterial hypertension. Eur Respir J 2011; 39:589-96. [PMID: 21885392 DOI: 10.1183/09031936.00092311] [Citation(s) in RCA: 224] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Current guidelines for the treatment of patients with idiopathic pulmonary arterial hypertension (IPAH) recommend basing therapeutic decision-making on haemodynamic, functional and biochemical variables. Most of these parameters have been evaluated as risk predictors at the time of diagnosis. The aim of the present study was to assess the prognostic impact of changes in these parameters after initiation of targeted therapy. A cohort of 109 patients with IPAH who had undergone haemodynamic, functional and biochemical assessments at baseline and 3-12 months after initiation of pulmonary arterial hypertension (PAH)-targeted therapy, were followed for a median 38 months in order to determine predictors of mortality at baseline and during the course of their disease. Within the observation period, 53 (48.6%) patients died and four (3.7%) underwent lung transplantation. Kaplan-Meier estimates for transplantation-free survival were 92%, 67%, and 51% at 1, 3, and 5 yrs, respectively. Among baseline variables, 6-min walk distance, right atrial pressure, cardiac index, mixed-venous oxygen saturation (S(v,O(2))) and N-terminal-pro brain natriuretic peptide (NT-proBNP) were independent predictors of survival. During follow-up, changes in World Health Organization functional class, cardiac index, S(v,O(2)) and NT-proBNP proved significant predictors of outcome. When assigned to prognostic groups, improvements as well as deteriorations in these parameters after initiation of PAH-targeted therapy had a strong impact on survival. Measurements obtained at follow-up had a higher predictive value than variables obtained at baseline. Changes in established predictors of outcome during the course of the disease provide important prognostic information in patients with IPAH.
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Affiliation(s)
- N Nickel
- Dept of Respiratory Medicine, Hanover Medical School, Hanover, Germany
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Quéré R, Andradottir S, Brun ACM, Zubarev RA, Karlsson G, Olsson K, Magnusson M, Cammenga J, Karlsson S. High levels of the adhesion molecule CD44 on leukemic cells generate acute myeloid leukemia relapse after withdrawal of the initial transforming event. Leukemia 2010; 25:515-26. [PMID: 21116281 PMCID: PMC3072510 DOI: 10.1038/leu.2010.281] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Multiple genetic hits are detected in patients with acute myeloid leukemia (AML). To investigate this further, we developed a tetracycline-inducible mouse model of AML, in which the initial transforming event, overexpression of HOXA10, can be eliminated. Continuous overexpression of HOXA10 is required to generate AML in primary recipient mice, but is not essential for maintenance of the leukemia. Transplantation of AML to secondary recipients showed that in established leukemias, ∼80% of the leukemia-initiating cells (LICs) in bone marrow stopped proliferating upon withdrawal of HOXA10 overexpression. However, the population of LICs in primary recipients is heterogeneous, as ∼20% of the LICs induce leukemia in secondary recipients despite elimination of HOXA10-induced overexpression. Intrinsic genetic activation of several proto-oncogenes was observed in leukemic cells resistant to inactivation of the initial transformation event. Interestingly, high levels of the adhesion molecule CD44 on leukemic cells are essential to generate leukemia after removal of the primary event. This suggests that extrinsic niche-dependent factors are also involved in the host-dependent outgrowth of leukemias after withdrawal of HOXA10 overexpression event that initiates the leukemia.
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Affiliation(s)
- R Quéré
- Molecular Medicine and Gene Therapy, Division of Molecular Medicine and Gene Therapy, Lund Strategic Center for Stem Cell Biology and Cell Therapy, Lund University Hospital, Lund, Sweden
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Bergström A, Fransson B, Lagerstedt AS, Kindahl H, Olsson U, Olsson K. Hormonal concentrations in bitches with primary uterine inertia. Theriogenology 2010; 73:1068-75. [PMID: 20172602 DOI: 10.1016/j.theriogenology.2010.01.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2009] [Revised: 01/07/2010] [Accepted: 01/09/2010] [Indexed: 10/19/2022]
Abstract
Normal labor is accompanied by sequential changes in blood concentrations of prostaglandin F2alpha (measured as 15-ketodihydro-PGF2 alpha=PGFM), progesterone, estradiol, oxytocin, vasopressin, and of elevated cortisol levels. The aim of this study was to investigate hormone concentrations in dogs diagnosed with primary uterine inertia before and during treatment by cesarean section. The hypothesis was the dogs would have abnormally low plasma concentrations in one or several of the hormones involved in parturition. The study comprised seven bitches with total primary uterine inertia (dystocia group) treated with cesarean section and six healthy bitches (control group) subjected to planned cesarean section. Blood samples were taken before anesthesia, before surgery started, on delivery of the first puppy and on delivery of the last puppy. The progesterone:PGFM ratio in plasma was higher in the dystocia group than in the control group, but the serum estradiol concentration did not differ between groups. The plasma concentrations of oxytocin and vasopressin increased in both groups when the first puppies were delivered, but both hormones were more elevated in the control group than in the dystocia group on delivery of the last puppies. The plasma cortisol concentration increased to the same level in both groups. In conclusion, the ratio between progesterone and PGFM was higher and the oxytocin and vasopressin concentrations lower in the dystocia dogs than in the control dogs. The findings indicate that these hormones are involved in the pathophysiology of total primary uterine inertia in bitches.
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Affiliation(s)
- A Bergström
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Box 7035, SE-750 07 Uppsala, Sweden.
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Sommer W, Warnecke G, Olsson K, Hadem J, Hoeper M, Gottlieb J, Fegbeutel C, Welte T, Strueber M, Haverich A. 423: Avoiding Mechanical Ventilation during Extracorporeal Membrane Oxygenation before Lung Transplantation Decreases Postoperative Mortality. J Heart Lung Transplant 2010. [DOI: 10.1016/j.healun.2009.11.438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Abstract
REASONS FOR PERFORMING STUDY Responses of horses in frightening situations are important for both equine and human safety. Considerable scientific interest has been shown in development of reactivity tests, but little effort has been dedicated to the development of appropriate training methods for reducing fearfulness. OBJECTIVES To investigate which of 3 different training methods (habituation, desensitisation and counter-conditioning) was most effective in teaching horses to react calmly in a potentially frightening situation. HYPOTHESES 1) Horses are able to generalise about the test stimulus such that, once familiar with the test stimulus in one situation, it appears less frightening and elicits a reduced response even when the stimulus intensity is increased or the stimulus is presented differently; and 2) alternative methods such as desensitisation and counter-conditioning would be more efficient than a classic habituation approach. METHODS Twenty-seven naive 2-year-old Danish Warmblood stallions were trained according to 3 different methods, based on classical learning theory: 1) horses (n = 9) were exposed to the full stimulus (a moving, white nylon bag, 1.2 x 0.75 m) in 5 daily training sessions until they met a predefined habituation criterion (habituation); 2) horses (n = 9) were introduced gradually to the stimulus and habituated to each step before the full stimulus was applied (desensitisation); 3) horses (n = 9) were trained to associate the stimulus with a positive reward before being exposed to the full stimulus (counter-conditioning). Each horse received 5 training sessions of 3 min per day. Heart rate and behavioural responses were recorded. RESULTS Horses trained with the desensitisation method showed fewer flight responses in total and needed fewer training sessions to learn to react calmly to test stimuli. Variations in heart rate persisted even when behavioural responses had ceased. In addition, all horses on the desensitisation method eventually habituated to the test stimulus whereas some horses on the other methods did not. CONCLUSIONS AND POTENTIAL RELEVANCE Desensitisation appeared to be the most effective training method for horses in frightening situations. Further research is needed in order to investigate the role of positive reinforcement, such as offering food, in the training of horses.
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Affiliation(s)
- J W Christensen
- Danish Institute of Agricultural Sciences, Department of Animal Health, Welfare and Nutrition, Tjele, Denmark
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Olsson K. Hemokromatos. Tidsskriftet 2009; 129:1774. [DOI: 10.4045/tidsskr.09.0729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
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Abstract
The pharmacokinetics and the effects of the opioid buprenorphine on behavior, cardiovascular parameters, plasma concentrations of cortisol and vasopressin were studied in the goat. After intravenous injection at a dosage of 0.02 mg/kg bw, the terminal half-life was 73.8+/-19.9 min (mean+/-SD), the apparent volume of distribution 5.22+/-1.01 L/kg, and total body clearance 79.1+/-18.5 mL/min/kg. After intramuscular administration of buprenorphine at the same dosage, bioavailability was complete and clearance was 54.7+/-16.6 mL/min/kg. Heart rate, blood pressure and concentrations of cortisol and vasopressin in plasma increased after drug administration. The goats became agitated and stopped ruminating. The effects were more pronounced the first time the animals received the drug, especially the influence on the hormone levels. The concentrations of cortisol and vasopressin in plasma remained unaffected after the second dose despite a wash-out period of 3-6 weeks. Buprenorphine may be an unsuitable drug in goats because of the profound inhibition of rumination and the agitation it causes. The short half-life of buprenorphine may limit its use if long-term analgesia is required but be advantageous if a short acting drug is desirable.
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Affiliation(s)
- C Ingvast-Larsson
- Division of Pathology, Pharmacology and Toxicology, Department of Biomedical Sciences and Veterinary Public Health, Swedish University of Agricultural Sciences, Uppsala, Sweden.
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Abstract
OBJECTIVES To evaluate two treatment methods in bitches with primary uterine inertia in relation to blood concentrations of oxytocin, calcium and glucose. METHODS A prospective study where 27 bitches with primary inertia were randomly allocated to treatment groups I and II. Blood samples were collected before and after treatment. Group I was treated with a combination of intravenous calcium solutions and oxytocin and group II with oxytocin only. If unsuccessful, caesarean sections or additional medical treatment was pursued. RESULTS Plasma oxytocin concentrations were 35+/-15 pmol/l in group I and 30+/-15 pmol/l in group II. Before treatment, the total serum calcium concentrations were 2.1+/-0.2 mmol/l in both the groups, and blood glucose values were 7.0+/-0.5 mmol/l (group I) and 7.3+/-1.4 mmol/l (group II). The number of bitches subjected to caesarean sections and the number of puppies born did not differ between the two groups. CLINICAL SIGNIFICANCE This study indicates that low plasma oxytocin levels is a cause of primary inertia in bitches with normal serum calcium concentrations and aggravates the condition in bitches with low calcium levels. Hypoglycaemia was not observed. The outcome of labour did not differ between groups I and II.
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Affiliation(s)
- A Bergström
- Department of Small Animal Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Box 7037, SE-750 07 Uppsala, Sweden
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Nilsson A, Ahman B, Norberg H, Redbo I, Eloranta E, Olsson K. Activity and heart rate in semi-domesticated reindeer during adaptation to emergency feeding. Physiol Behav 2006; 88:116-23. [PMID: 16643971 DOI: 10.1016/j.physbeh.2006.03.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2005] [Revised: 03/08/2006] [Accepted: 03/14/2006] [Indexed: 10/24/2022]
Abstract
Although reindeer are well adapted to limited food resources during winter, semi-domesticated reindeer are regularly fed when snow conditions are bad in order to prevent starvation. Feeding sometimes results in health problems and loss of animals. This study was made to assess if activity pattern in reindeer could be used as a tool for the reindeer herder in early detection of animals that are not adapting to feeding. The frequency of 10 behavioural categories was recorded in five groups of penned, eight-month-old, female semi-domesticated reindeer. Three reindeer per group were fitted with heart rate monitors. Lying was the most frequent behaviour, whilst there were few cases of agonistic behaviour. Heart rate varied during the day, with peaks during feeding and low heart rates in the early morning. Restricted feed intake resulted in more locomotion and seeking but less ruminating compared to feeding ad libitum. This was followed by a generally lower heart rate in reindeer in the restricted groups compared to controls. Subsequent feeding with different combinations of lichens, silage and pellets ad libitum resulted initially in significantly more of the animals lying curled up, compared to controls, combined with increased heart rates. As the experiment continued the general activity pattern, as well as the heart rate, gradually became more similar in all groups. Lying curled was the behavioural indicator most consistently affected by feed deprivation and adaptation to feeding and may thus be a useful indicator to distinguish individual reindeer that are not adjusting to feeding.
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Affiliation(s)
- A Nilsson
- Faculty of Veterinary Medicine and Animal Science, Reindeer Husbandry Unit, Swedish University of Agricultural Sciences, P.O. Box 7023, SE-750 07 Uppsala, Sweden
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Abstract
The physiology of lactation includes development of the mammary gland from the foetal to the adult stage, further development during pregnancy and onset of lactation, with the accompanying metabolic and behavioural adaptation. At the onset of pregnancy the endocrine system undergoes dramatic changes. The growth of the mammary gland is stimulated by growth hormone and prolactin, adrenocortical steroids, oestrogens and progesterone, and that of the gastrointestinal (GI) tract by gastrin, CCK and secretin. The onset of lactation is accompanied by increases in the blood volume, cardiac output, mammary blood flow and blood flow through the GI-tract and liver, aiming to provide the udder with nutrients and hormones for regulation of milk synthesis. Food intake and distribution of nutrients to the mammary gland are partially regulated by hormones as well as the repartitioning of nutrients away from body stores towards the udder. To improve milk production, administration of growth hormone has been practised, but also much discussed. Besides central mechanisms, local mechanisms within the mammary gland regulate initiation of lactation, maintenance, regulation of blood flow and mammary gland cell apoptosis. Most of the milk in a filled dairy cow udder is stored in the alveolar compartments. The milk ejection reflex must be activated to gain access to the udder milk, i.e. oxytocin contracts the myoepithelial cells. Recent studies show that vasopressin may also elicit milk ejection. More efficient oxytocin release is achieved if the cows are fed during milking. Beyond milk let down, oxytocin influences maternal behaviour and metabolism. Furthermore, it has been indicated that suckling or milking activates a vagal reflex, which may link the milk production to the endocrine system of the GI-tract. The question has been raised whether the mammary gland is a supporting or consuming organ.
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Affiliation(s)
- K Svennersten-Sjaunja
- Department of Animal Nutrition and Management, Faculty of Veterinary Medicine and Animal Science, Swedish University of Agricultural Sciences, 753 23 Uppsala, Sweden.
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Olsson K, Stain J, Thorén S. Correlation between behaviour during labour and
blood plasma concentrations of vasopressin
in goats. J Anim Feed Sci 2004. [DOI: 10.22358/jafs/74028/2004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Mengistu U, Dahlborn K, Olsson K. Effect of intermittent watering on dry matter intake
and body weight of male Ethiopian Somali goats. J Anim Feed Sci 2004. [DOI: 10.22358/jafs/74081/2004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Abstract
Pregnancy and lactation involve great demands on the cardiovascular system. The purpose of this study was to investigate how the heart rate and diurnal heart rate pattern change when dogs become pregnant or lactate. Five clinically healthy female beagle dogs were mated, and delivered three to seven healthy puppies. The heart rate was investigated with 24-h ECG (Holter) once during anoestrus, at 3, 5, 7 and 9 weeks of pregnancy, and at week 4 postpartum (lactation). However, at 9 weeks, the ECG could not be recorded for the fully 24 h in 4 of 5 dogs, because labour started and the dogs then appeared disturbed by the recordings. The results at this date are not included in the statistical comparison. The heart rate increased progressively during pregnancy and was still elevated at 4 weeks of lactation. During late pregnancy the difference in heart rates between daytime and nighttime became smaller, but the heart rate was significantly higher in daytime in all periods. In conclusion, the increased heart rates during pregnancy and lactation reflect increased demands on the cardiovascular system and may be important to consider in clinical practice.
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Affiliation(s)
- K Olsson
- Department of Anatomy and Physiology, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden.
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Olsson K, Bergström A, Kindahl H, Lagerstedt AS. Increased plasma concentrations of vasopressin, oxytocin, cortisol and the prostaglandin F2alpha metabolite during labour in the dog. ACTA ACUST UNITED AC 2004; 179:281-7. [PMID: 14616244 DOI: 10.1046/j.0001-6772.2003.01178.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
AIM This study investigated if the plasma vasopressin concentration increases during labour in the dog and whether the change in vasopressin correlates with that of oxytocin, 15-ketodihydro-PGF2alpha and cortisol. METHODS Five beagle dogs each delivered three to seven puppies. Blood samples were taken from a catheter inserted into the cephalic vein during labour and by venepuncture during the other periods. RESULTS Vasopressin concentration increased from 2 +/- 0 pmol L-1 (anoestrus) to 26 +/- 11 pmol L-1 at the birth of the first puppy, remained high at the birth of the second puppy and then decreased. Oxytocin increased from 63 +/- 5 pmol L-1 (anoestrus) to 166 +/- 19 pmol L-1 at the birth of the first puppy and remained elevated throughout labour. The PGF2alpha metabolite concentration increased from 0.2 +/- 0.0 nmol L-1 (anoestrus) to 66 +/- 17 nmol L-1 at the birth of the first puppy and remained elevated 1 h after the completion of parturition. The cortisol concentration increased from 49 +/- 9 nmol L-1 (anoestrus) to 242 +/- 35 nmol L-1 at the birth of the first puppy, remained high during the birth of the second puppy and then declined. CONCLUSIONS The plasma level of vasopressin was strongly correlated with that of cortisol but less with that of the PGF2alpha metabolite, and not significantly with the concentration of oxytocin. This indicates that the four hormones play different roles during labour in the dog.
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Affiliation(s)
- K Olsson
- Department of Anatomy and Physiology, Swedish University of Agricultural Sciences, Uppsala, Sweden
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