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Goutal S, Tran T, Leroy C, Benhamouda N, Leterrier S, Saba W, Lafont B, Tartour É, Roelens M, Tournier N. Brain Glucose Metabolism as a Readout of the Central Nervous System Impact of Cigarette Smoke Exposure and Withdrawal and the Effects of NFL-101, as an Immune-Based Drug Candidate for Smoking Cessation Therapy. ACS Chem Neurosci 2024; 15:2520-2531. [PMID: 38875216 DOI: 10.1021/acschemneuro.4c00204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2024] Open
Abstract
Neuroimaging biomarkers are needed to investigate the impact of smoking withdrawal on brain function. NFL-101 is a denicotinized aqueous extract of tobacco leaves currently investigated as an immune-based smoking cessation therapy in humans. However, the immune response to NFL-101 and its ability to induce significant changes in brain function remain to be demonstrated. Brain glucose metabolism was investigated using [18F]fluoro-deoxy-glucose ([18F]FDG) PET imaging in a mouse model of cigarette smoke exposure (CSE, 4-week whole-body inhalation, twice daily). Compared with control animals, the relative uptake of [18F]FDG in CSE mice was decreased in the thalamus and brain stem (p < 0.001, n = 14 per group) and increased in the hippocampus, cortex, cerebellum, and olfactory bulb (p < 0.001). NFL-101 induced a humoral immune response (specific IgGs) in mice and activated human natural-killer lymphocytes in vitro. In CSE mice, but not in control mice, single-dose NFL-101 significantly increased [18F]FDG uptake in the thalamus (p < 0.01), thus restoring normal brain glucose metabolism after 2-day withdrawal in this nicotinic receptor-rich region. In tobacco research, [18F]FDG PET imaging provides a quantitative method to evaluate changes in the brain function associated with the withdrawal phase. This method also showed the CNS effects of NFL-101, with translational perspectives for future clinical evaluation in smokers.
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Affiliation(s)
- Sébastien Goutal
- CEA, CNRS, Inserm, BioMaps, Université Paris-Saclay, Orsay 91401, France
| | - Thi Tran
- Université Paris Cité, INSERM, PARCC, Paris 75015, France
- Department of Immunology, APHP, Hôpital Européen Georges Pompidou (HEGP), Hôpital Necker, Paris 75015,France
| | - Claire Leroy
- CEA, CNRS, Inserm, BioMaps, Université Paris-Saclay, Orsay 91401, France
| | - Nadine Benhamouda
- Université Paris Cité, INSERM, PARCC, Paris 75015, France
- Department of Immunology, APHP, Hôpital Européen Georges Pompidou (HEGP), Hôpital Necker, Paris 75015,France
| | - Sarah Leterrier
- CEA, CNRS, Inserm, BioMaps, Université Paris-Saclay, Orsay 91401, France
| | - Wadad Saba
- CEA, CNRS, Inserm, BioMaps, Université Paris-Saclay, Orsay 91401, France
| | | | - Éric Tartour
- Université Paris Cité, INSERM, PARCC, Paris 75015, France
- Department of Immunology, APHP, Hôpital Européen Georges Pompidou (HEGP), Hôpital Necker, Paris 75015,France
| | - Marie Roelens
- Université Paris Cité, INSERM, PARCC, Paris 75015, France
- Department of Immunology, APHP, Hôpital Européen Georges Pompidou (HEGP), Hôpital Necker, Paris 75015,France
| | - Nicolas Tournier
- CEA, CNRS, Inserm, BioMaps, Université Paris-Saclay, Orsay 91401, France
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Singhaarachchi PH, Antal P, Calon F, Culmsee C, Delpech JC, Feldotto M, Geertsema J, Hoeksema EE, Korosi A, Layé S, McQualter J, de Rooij SR, Rummel C, Slayo M, Sominsky L, Spencer SJ. Aging, sex, metabolic and life experience factors: Contributions to neuro-inflammaging in Alzheimer's disease research. Neurosci Biobehav Rev 2024; 162:105724. [PMID: 38762130 DOI: 10.1016/j.neubiorev.2024.105724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 04/24/2024] [Accepted: 05/12/2024] [Indexed: 05/20/2024]
Abstract
Alzheimer's disease (AD) is prevalent around the world, yet our understanding of the disease is still very limited. Recent work suggests that the cornerstone of AD may include the inflammation that accompanies it. Failure of a normal pro-inflammatory immune response to resolve may lead to persistent central inflammation that contributes to unsuccessful clearance of amyloid-beta plaques as they form, neuronal death, and ultimately cognitive decline. Individual metabolic, and dietary (lipid) profiles can differentially regulate this inflammatory process with aging, obesity, poor diet, early life stress and other inflammatory factors contributing to a greater risk of developing AD. Here, we integrate evidence for the interface between these factors, and how they contribute to a pro-inflammatory brain milieu. In particular, we discuss the importance of appropriate polyunsaturated fatty acids (PUFA) in the diet for the metabolism of specialised pro-resolving mediators (SPMs); raising the possibility for dietary strategies to improve AD outlook.
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Affiliation(s)
| | - Peter Antal
- Department of Measurement and Information Systems, Budapest University of Technology and Economics, 1111, Hungary
| | - Frédéric Calon
- Faculty of Pharmacy, Centre de Recherche du CHU de Québec-Laval University, Quebec G1V0A6, Canada; International Associated Laboratory OptiNutriBrain-NutriNeuro, Bordeaux F-33000, France; INAF, Quebec G1V0A6, Canada
| | - Carsten Culmsee
- Institute of Pharmacology and Clinical Pharmacy, Philipps University of Marburg, Marburg D-35032, Germany; Center for Mind, Brain and Behavior-CMBB, Giessen, D-35392, Marburg D-35032, Germany
| | - Jean-Christophe Delpech
- International Associated Laboratory OptiNutriBrain-NutriNeuro, Bordeaux F-33000, France; Université de Bordeaux, INRAE, Bordeaux INP, NutriNeurO, UMR 1286, Bordeaux F-33000, France; INAF, Quebec G1V0A6, Canada
| | - Martin Feldotto
- Institute of Veterinary Physiology and Biochemistry, Justus Liebig University Giessen, Giessen D-35392, Germany
| | - Jorine Geertsema
- Center for Neuroscience, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam 1018, the Netherlands
| | - Emmy E Hoeksema
- Center for Neuroscience, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam 1018, the Netherlands
| | - Aniko Korosi
- Center for Neuroscience, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam 1018, the Netherlands
| | - Sophie Layé
- International Associated Laboratory OptiNutriBrain-NutriNeuro, Bordeaux F-33000, France; Université de Bordeaux, INRAE, Bordeaux INP, NutriNeurO, UMR 1286, Bordeaux F-33000, France; INAF, Quebec G1V0A6, Canada
| | - Jonathan McQualter
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Melbourne, Victoria 3083, Australia
| | - Susanne R de Rooij
- Department of Epidemiology and Data Science, Amsterdam University Medical Centers, University of Amsterdam, 1018, the Netherlands
| | - Christoph Rummel
- Center for Mind, Brain and Behavior-CMBB, Giessen, D-35392, Marburg D-35032, Germany; Institute of Veterinary Physiology and Biochemistry, Justus Liebig University Giessen, Giessen D-35392, Germany
| | - Mary Slayo
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Melbourne, Victoria 3083, Australia; Center for Mind, Brain and Behavior-CMBB, Giessen, D-35392, Marburg D-35032, Germany; Institute of Veterinary Physiology and Biochemistry, Justus Liebig University Giessen, Giessen D-35392, Germany
| | - Luba Sominsky
- Barwon Health, Geelong, Victoria 3220, Australia; IMPACT - the Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Deakin University, Geelong, Victoria 3217, Australia
| | - Sarah J Spencer
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Melbourne, Victoria 3083, Australia.
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Yadav V, Pandey V, Gaglani P, Srivastava A, Soni, Subhashini. Inhibiting SIRT-2 by AK-7 restrains airway inflammation and oxidative damage promoting lung resurgence through NF-kB and MAP kinase signaling pathway. Front Immunol 2024; 15:1404122. [PMID: 38979411 PMCID: PMC11228164 DOI: 10.3389/fimmu.2024.1404122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Accepted: 05/24/2024] [Indexed: 07/10/2024] Open
Abstract
Introduction Chronic obstructive pulmonary disease (COPD) is a major global cause of mortality with limited effective treatments. Sirtuins (SIRT) are histone deacetylases that are involved in the regulation of redox and inflammatory homeostasis. Hence, the present study aims to investigate the role of SIRT-2 in modulating inflammation in a murine model of COPD. Methods COPD in mice was established by cigarette smoke (CS) exposure for 60 days, and AK-7 was used as the specific SIRT-2 inhibitor. AK-7 (100 µg/kg and 200 µg/kg body weight) was administered intranasally 1 h before CS exposure. Molecular docking was performed to analyze the binding affinity of different inflammatory proteins with AK-7. Results Immune cell analysis showed a significantly increased number of macrophages (F4/80), neutrophils (Gr-1), and lymphocytes (CD4+, CD8+, and CD19+) in the COPD, group and their population was declined by AK-7 administration. Total reactive oxygen species, total inducible nitric oxide synthase, inflammatory mediators such as neutrophil elastase, C-reactive protein, histamine, and cytokines as IL4, IL-6, IL-17, and TNF-α were elevated in COPD and declined in the AK-7 group. However, IL-10 showed reverse results representing anti-inflammatory potency. AK-7 administration by inhibiting SIRT-2 decreased the expression of p-NF-κB, p-P38, p-Erk, and p-JNK and increased the expression of Nrf-2. Furthermore, AK-7 also declined the lung injury by inhibiting inflammation, parenchymal destruction, emphysema, collagen, club cells, and Kohn pores. AK-7 also showed good binding affinity with inflammatory proteins. Discussion The current study reveals that SIRT-2 inhibition mitigates COPD severity and enhances pulmonary therapeutic interventions, suggesting AK-7 as a potential therapeutic molecule for COPD medication development.
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Affiliation(s)
- Vandana Yadav
- Department of Zoology, Mahila Mahavidyalaya, Banaras Hindu University, Varanasi, India
| | - Vinita Pandey
- Department of Zoology, Mahila Mahavidyalaya, Banaras Hindu University, Varanasi, India
| | - Pratikkumar Gaglani
- Department of Zoology, Mahila Mahavidyalaya, Banaras Hindu University, Varanasi, India
| | - Atul Srivastava
- Department of Biochemistry, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
| | - Soni
- Department of Zoology, Mahila Mahavidyalaya, Banaras Hindu University, Varanasi, India
| | - Subhashini
- Department of Zoology, Mahila Mahavidyalaya, Banaras Hindu University, Varanasi, India
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Dolcetti E, Musella A, Balletta S, Gilio L, Bruno A, Stampanoni Bassi M, Lauritano G, Buttari F, Fresegna D, Tartacca A, Mariani F, Palmerio F, Rovella V, Ferese R, Gambardella S, Giardina E, Finardi A, Furlan R, Mandolesi G, Centonze D, De Vito F. Interaction between miR-142-3p and BDNF Val/Met Polymorphism Regulates Multiple Sclerosis Severity. Int J Mol Sci 2024; 25:5253. [PMID: 38791290 PMCID: PMC11121620 DOI: 10.3390/ijms25105253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 05/02/2024] [Accepted: 05/05/2024] [Indexed: 05/26/2024] Open
Abstract
MiR-142-3p has recently emerged as key factor in tailoring personalized treatments for multiple sclerosis (MS), a chronic autoimmune demyelinating disease of the central nervous system (CNS) with heterogeneous pathophysiology and an unpredictable course. With its involvement in a detrimental regulatory axis with interleukin-1beta (IL1β), miR-142-3p orchestrates excitotoxic synaptic alterations that significantly impact both MS progression and therapeutic outcomes. In this study, we investigated for the first time the influence of individual genetic variability on the miR-142-3p excitotoxic effect in MS. We specifically focused on the single-nucleotide polymorphism Val66Met (rs6265) of the brain-derived neurotrophic factor (BDNF) gene, known for its crucial role in CNS functioning. We assessed the levels of miR-142-3p and IL1β in cerebrospinal fluid (CSF) obtained from a cohort of 114 patients with MS upon diagnosis. By stratifying patients according to their genetic background, statistical correlations with clinical parameters were performed. Notably, in Met-carrier patients, we observed a decoupling of miR-142-3p levels from IL1β levels in the CSF, as well as from of disease severity (Expanded Disability Status Score, EDSS; Multiple Sclerosis Severity Score, MSSS; Age-Related Multiple Sclerosis Severity Score, ARMSS) and progression (Progression Index, PI). Our discovery of the interference between BDNF Val66Met polymorphism and the synaptotoxic IL1β-miR-142-3p axis, therefore hampering miR-142-3p action on MS course, provides valuable insights for further development of personalized medicine in the field.
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Affiliation(s)
- Ettore Dolcetti
- Neurology Unit, IRCCS Neuromed, 86077 Pozzilli, Italy; (E.D.); (S.B.); (L.G.); (A.B.); (M.S.B.); (G.L.); (F.B.); (R.F.); (S.G.)
- Ph.D. Program in Neuroscience, Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, Italy; (A.T.); (F.P.)
| | - Alessandra Musella
- Synaptic Immunopathology Laboratory, IRCCS San Raffaele Roma, 00163 Rome, Italy; (A.M.); (D.F.); (G.M.)
- Department of Human Sciences and Quality of Life Promotion, University of Rome San Raffaele, 00163 Rome, Italy
| | - Sara Balletta
- Neurology Unit, IRCCS Neuromed, 86077 Pozzilli, Italy; (E.D.); (S.B.); (L.G.); (A.B.); (M.S.B.); (G.L.); (F.B.); (R.F.); (S.G.)
| | - Luana Gilio
- Neurology Unit, IRCCS Neuromed, 86077 Pozzilli, Italy; (E.D.); (S.B.); (L.G.); (A.B.); (M.S.B.); (G.L.); (F.B.); (R.F.); (S.G.)
- Faculty of Psychology, Uninettuno Telematic International University, 00186 Rome, Italy
| | - Antonio Bruno
- Neurology Unit, IRCCS Neuromed, 86077 Pozzilli, Italy; (E.D.); (S.B.); (L.G.); (A.B.); (M.S.B.); (G.L.); (F.B.); (R.F.); (S.G.)
- Ph.D. Program in Neuroscience, Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, Italy; (A.T.); (F.P.)
| | - Mario Stampanoni Bassi
- Neurology Unit, IRCCS Neuromed, 86077 Pozzilli, Italy; (E.D.); (S.B.); (L.G.); (A.B.); (M.S.B.); (G.L.); (F.B.); (R.F.); (S.G.)
| | - Gianluca Lauritano
- Neurology Unit, IRCCS Neuromed, 86077 Pozzilli, Italy; (E.D.); (S.B.); (L.G.); (A.B.); (M.S.B.); (G.L.); (F.B.); (R.F.); (S.G.)
| | - Fabio Buttari
- Neurology Unit, IRCCS Neuromed, 86077 Pozzilli, Italy; (E.D.); (S.B.); (L.G.); (A.B.); (M.S.B.); (G.L.); (F.B.); (R.F.); (S.G.)
- Department of Systems Medicine, Tor Vergata University, 00133 Rome, Italy; (F.M.); (V.R.)
| | - Diego Fresegna
- Synaptic Immunopathology Laboratory, IRCCS San Raffaele Roma, 00163 Rome, Italy; (A.M.); (D.F.); (G.M.)
| | - Alice Tartacca
- Ph.D. Program in Neuroscience, Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, Italy; (A.T.); (F.P.)
| | - Fabrizio Mariani
- Department of Systems Medicine, Tor Vergata University, 00133 Rome, Italy; (F.M.); (V.R.)
| | - Federica Palmerio
- Ph.D. Program in Neuroscience, Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, Italy; (A.T.); (F.P.)
| | - Valentina Rovella
- Department of Systems Medicine, Tor Vergata University, 00133 Rome, Italy; (F.M.); (V.R.)
| | - Rosangela Ferese
- Neurology Unit, IRCCS Neuromed, 86077 Pozzilli, Italy; (E.D.); (S.B.); (L.G.); (A.B.); (M.S.B.); (G.L.); (F.B.); (R.F.); (S.G.)
| | - Stefano Gambardella
- Neurology Unit, IRCCS Neuromed, 86077 Pozzilli, Italy; (E.D.); (S.B.); (L.G.); (A.B.); (M.S.B.); (G.L.); (F.B.); (R.F.); (S.G.)
- Department of Biomolecular Sciences, University of Urbino “Carlo Bo”, 61029 Urbino, Italy
| | - Emiliano Giardina
- Genomic Medicine Laboratory, IRCCS Fondazione Santa Lucia, 00179 Rome, Italy;
- Department of Biomedicine and Prevention, University of Rome “Tor Vergata”, 00133 Rome, Italy
| | - Annamaria Finardi
- Clinical Neuroimmunology Unit, Institute of Experimental Neurology (INSpe), Division of Neuroscience, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; (A.F.); (R.F.)
- Faculty of Medicine and Surgery, Vita e Salute San Raffaele University, 20132 Milan, Italy
| | - Roberto Furlan
- Clinical Neuroimmunology Unit, Institute of Experimental Neurology (INSpe), Division of Neuroscience, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; (A.F.); (R.F.)
- Faculty of Medicine and Surgery, Vita e Salute San Raffaele University, 20132 Milan, Italy
| | - Georgia Mandolesi
- Synaptic Immunopathology Laboratory, IRCCS San Raffaele Roma, 00163 Rome, Italy; (A.M.); (D.F.); (G.M.)
- Department of Human Sciences and Quality of Life Promotion, University of Rome San Raffaele, 00163 Rome, Italy
| | - Diego Centonze
- Neurology Unit, IRCCS Neuromed, 86077 Pozzilli, Italy; (E.D.); (S.B.); (L.G.); (A.B.); (M.S.B.); (G.L.); (F.B.); (R.F.); (S.G.)
- Department of Systems Medicine, Tor Vergata University, 00133 Rome, Italy; (F.M.); (V.R.)
| | - Francesca De Vito
- Neurology Unit, IRCCS Neuromed, 86077 Pozzilli, Italy; (E.D.); (S.B.); (L.G.); (A.B.); (M.S.B.); (G.L.); (F.B.); (R.F.); (S.G.)
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Hao JQ, Zhang L, Yu YQ, Hao MY, Wang AX, Feng FM. Analysis of Dietary and Nutritional Status of Tuberculosis Patients in Hulunbuir Region. J Multidiscip Healthc 2024; 17:1231-1240. [PMID: 38524862 PMCID: PMC10960538 DOI: 10.2147/jmdh.s450080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 02/16/2024] [Indexed: 03/26/2024] Open
Abstract
Objective Tuberculosis (TB) is a major public health problem that affects millions of people worldwide. Malnutrition is a common complication of TB and can worsen the disease outcome. The purpose of this study was to investigate the dietary and nutritional status, as well as the dietary structure, of TB patients in Hulunbuir City, Inner Mongolia, China. Additionally, the study aimed to analyze the factors that influence the nutritional status in order to provide a theoretical foundation for the prevention and treatment of TB and related issues. Methods A cross-sectional study was conducted on 334 randomly selected TB patients from Hulunbuir City Second Hospital. A questionnaire survey was administered to collect information on demographic characteristics, dietary habits, and food intake. Nutritional status was assessed by body mass index (BMI). Dietary diversity score (DDS) was calculated based on the number of food groups consumed in the previous 24 hours. Statistical analysis was performed using SPSS 20.0 software. Descriptive statistics employed rates and composition ratios, and categorical data was represented using frequencies and percentages. The chi-square test was used to analyze the association between nutritional status and other variables, with a significance level set at α=0.05. Multivariable ordinal logistic regression analysis was performed to identify the independent factors affecting the nutritional status of TB patients. Results The univariate analysis revealed statistically significant differences (P < 0.05) in the nutritional status (as measured by BMI) among tuberculosis patients, considering ethnicity, educational level, smoking, meat-based diet, vegetable consumption, and DDS grading. No statistically significant differences were found regarding gender, age, marital status, occupation, sleep duration, alcohol consumption, and consumption of rice and flour dishes. Statistically significant variables from the univariate analysis were included in a multivariable ordinal logistic regression analysis model. The findings highlighted that educational level (high school or below), smoking, meat-based diet, DDS scores of 1-3, and a primarily vegetable-based diet had independent effects on the nutritional status of tuberculosis patients (all P < 0.05). No significant difference was found in nutritional status between the Han ethnic group and other ethnicities. Conclusion The study revealed that the dietary and nutritional status of TB patients in Hulunbuir City was suboptimal and influenced by several factors. Smoking, meat-based diet, and low dietary diversity score were the primary risk factors for malnutrition among TB patients. The study suggests that nutritional education and intervention programs should be implemented for TB patients to improve their dietary quality and nutritional status.
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Affiliation(s)
- Jin-Qi Hao
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei Province, 063210, People’s Republic of China
- School of Public Health, Baotou Medical College, Baotou, Inner Mongolia, 014040, People’s Republic of China
| | - Lan Zhang
- School of Public Health, Baotou Medical College, Baotou, Inner Mongolia, 014040, People’s Republic of China
| | - Yan-Qin Yu
- School of Public Health, Baotou Medical College, Baotou, Inner Mongolia, 014040, People’s Republic of China
| | - Ming-Yuan Hao
- The Second People’s Hospital in Hulunbuir, Zaerdong, 162650, People’s Republic of China
| | - Ai-Xin Wang
- The Second People’s Hospital in Hulunbuir, Zaerdong, 162650, People’s Republic of China
| | - Fu-Min Feng
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei Province, 063210, People’s Republic of China
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Schoeps VA, Cortese M, Munger KL, Mancuso JD, Niebuhr DW, Peng X, Ascherio A, Bjornevik K. Smoking and multiple sclerosis risk in black people: A nested case-control study. Mult Scler Relat Disord 2024; 81:105375. [PMID: 38104478 PMCID: PMC10843624 DOI: 10.1016/j.msard.2023.105375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 11/21/2023] [Accepted: 12/10/2023] [Indexed: 12/19/2023]
Abstract
BACKGROUND Smoking is a well-established risk factor for MS; however, it is not known whether its effect on disease risk varies by race/ethnicity. METHODS We conducted a nested case-control study among US military personnel who have serum samples stored at the Department of Defense Serum Repository. We measured serum cotinine levels, a marker of tobacco smoke exposure, in 157 Black and 23 White individuals who developed MS during follow-up. Controls were randomly selected and matched to each case by age, sex, race/ethnicity, dates of sample collection, and branch of military service. RESULTS Smoking was not associated with an increased risk of MS in Black people (RR: 1.08, 95 % CI: 0.63-1.85). The results remained similar in analyses restricted to smoking status at baseline, to samples collected 5 years before symptom onset, and using different cut-off levels in cotinine to define smoking status. Smoking was not statistically significantly associated with MS risk in White people, but the point estimate was similar to what has previously been reported in other studies (RR: 1.85, 95 % CI: 0.56-6.16). CONCLUSIONS Smoking was not associated with MS risk in Black people. Given the consistent association between smoking and MS risk in predominantly White populations, this may suggest that the association between smoking and MS varies by race/ethnicity.
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Affiliation(s)
- Vinicius A Schoeps
- Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA, USA.
| | - Marianna Cortese
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Kassandra L Munger
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - James D Mancuso
- Department of Preventive Medicine and Biostatistics, Uniformed Services University of the Health Sciences, Bethesda, MD, USA
| | - David W Niebuhr
- Department of Preventive Medicine and Biostatistics, Uniformed Services University of the Health Sciences, Bethesda, MD, USA
| | - Xiaojing Peng
- Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Alberto Ascherio
- Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA, USA; Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, USA; Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Kjetil Bjornevik
- Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA, USA; Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, USA
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Sande R, Godad A, Doshi G. Zebrafish Experimental Animal Models for AD: A Comprehensive Review. Curr Rev Clin Exp Pharmacol 2024; 19:295-311. [PMID: 38284707 DOI: 10.2174/0127724328279684240104094257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 11/26/2023] [Accepted: 12/06/2023] [Indexed: 01/30/2024]
Abstract
AD disease (AD) is a multifaceted and intricate neurodegenerative disorder characterized by intracellular neurofibrillary tangle (NFT) formation and the excessive production and deposition of Aβ senile plaques. While transgenic AD models have been found instrumental in unravelling AD pathogenesis, they involve cost and time constraints during the preclinical phase. Zebrafish, owing to their simplicity, well-defined behavioural patterns, and relevance to neurodegenerative research, have emerged as a promising complementary model. Zebrafish possess glutaminergic and cholinergic pathways implicated in learning and memory, actively contributing to our understanding of neural transmission processes. This review sheds light on the molecular mechanisms by which various neurotoxic agents, including okadaic acid (OKA), cigarette smoke extract, metals, and transgenic zebrafish models with genetic similarities to AD patients, induce cognitive impairments and neuronal degeneration in mammalian systems. These insights may facilitate the identification of effective neurotoxic agents for replicating AD pathogenesis in the zebrafish brain. In this comprehensive review, the pivotal role of zebrafish models in advancing our comprehension of AD is emphasized. These models hold immense potential for shaping future research directions and clinical interventions, ultimately contributing to the development of novel AD therapies.
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Affiliation(s)
- Ruksar Sande
- Department of Pharmacology, Toxicology and Therapeutics, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, V L M Road, Vile Parle (w), Mumbai, 400056, India
| | - Angel Godad
- Department of Pharmacology, Toxicology and Therapeutics, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, V L M Road, Vile Parle (w), Mumbai, 400056, India
| | - Gaurav Doshi
- Department of Pharmacology, Toxicology and Therapeutics, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, V L M Road, Vile Parle (w), Mumbai, 400056, India
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Weaver DF. Thirty Risk Factors for Alzheimer's Disease Unified by a Common Neuroimmune-Neuroinflammation Mechanism. Brain Sci 2023; 14:41. [PMID: 38248256 PMCID: PMC10813027 DOI: 10.3390/brainsci14010041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 12/27/2023] [Accepted: 12/30/2023] [Indexed: 01/23/2024] Open
Abstract
One of the major obstacles confronting the formulation of a mechanistic understanding for Alzheimer's disease (AD) is its immense complexity-a complexity that traverses the full structural and phenomenological spectrum, including molecular, macromolecular, cellular, neurological and behavioural processes. This complexity is reflected by the equally complex diversity of risk factors associated with AD. However, more than merely mirroring disease complexity, risk factors also provide fundamental insights into the aetiology and pathogenesis of AD as a neurodegenerative disorder since they are central to disease initiation and subsequent propagation. Based on a systematic literature assessment, this review identified 30 risk factors for AD and then extended the analysis to further identify neuroinflammation as a unifying mechanism present in all 30 risk factors. Although other mechanisms (e.g., vasculopathy, proteopathy) were present in multiple risk factors, dysfunction of the neuroimmune-neuroinflammation axis was uniquely central to all 30 identified risk factors. Though the nature of the neuroinflammatory involvement varied, the activation of microglia and the release of pro-inflammatory cytokines were a common pathway shared by all risk factors. This observation provides further evidence for the importance of immunopathic mechanisms in the aetiopathogenesis of AD.
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Affiliation(s)
- Donald F Weaver
- Krembil Research Institute, University Health Network, Departments of Medicine, Chemistry, Pharmaceutical Sciences, University of Toronto, Toronto, ON M5T 0S8, Canada
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9
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O'Neill J, Diaz MP, Alger JR, Pochon JB, Ghahremani D, Dean AC, Tyndale RF, Petersen N, Marohnic S, Karaiskaki A, London ED. Smoking, tobacco dependence, and neurometabolites in the dorsal anterior cingulate cortex. Mol Psychiatry 2023; 28:4756-4765. [PMID: 37749232 PMCID: PMC10914613 DOI: 10.1038/s41380-023-02247-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 08/24/2023] [Accepted: 08/29/2023] [Indexed: 09/27/2023]
Abstract
Cigarette smoking has a major impact on global health and morbidity, and positron emission tomographic research has provided evidence for reduced inflammation in the human brain associated with cigarette smoking. Given the consequences of inflammatory dysfunction for health, the question of whether cigarette smoking affects neuroinflammation warrants further investigation. The goal of this project therefore was to validate and extend evidence of hypoinflammation related to smoking, and to examine the potential contribution of inflammation to clinical features of smoking. Using magnetic resonance spectroscopy, we measured levels of neurometabolites that are putative neuroinflammatory markers. N-acetyl compounds (N-acetylaspartate + N-acetylaspartylglutamate), glutamate, creatine, choline-compounds (phosphocholine + glycerophosphocholine), and myo-inositol, have all been linked to neuroinflammation, but they have not been examined as such with respect to smoking. We tested whether people who smoke cigarettes have brain levels of these metabolites consistent with decreased neuroinflammation, and whether clinical features of smoking are associated with levels of these metabolites. The dorsal anterior cingulate cortex was chosen as the region-of-interest because of previous evidence linking it to smoking and related states. Fifty-four adults who smoked daily maintained overnight smoking abstinence before testing and were compared with 37 nonsmoking participants. Among the smoking participants, we tested for associations of metabolite levels with tobacco dependence, smoking history, craving, and withdrawal. Levels of N-acetyl compounds and glutamate were higher, whereas levels of creatine and choline compounds were lower in the smoking group as compared with the nonsmoking group. In the smoking group, glutamate and creatine levels correlated negatively with tobacco dependence, and creatine correlated negatively with lifetime smoking, but none of the metabolite levels correlated with craving or withdrawal. The findings indicate a link between smoking and a hypoinflammatory state in the brain, specifically in the dorsal anterior cingulate cortex. Smoking may thereby increase vulnerability to infection and brain injury.
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Affiliation(s)
- Joseph O'Neill
- Division of Child & Adolescent Psychiatry, Department of Psychiatry, University of California at Los Angeles, Los Angeles, CA, USA
- Brain Research Institute, University of California at Los Angeles, Los Angeles, CA, USA
| | - Maylen Perez Diaz
- Jane and Terry Semel Institute for Neuroscience and Human Behavior and the Department of Psychiatry, University of California at Los Angeles, Los Angeles, CA, USA
- Biogen, Inc., Nashville, TN, USA
| | - Jeffry R Alger
- Department of Neurology, University of California at Los Angeles, Los Angeles, CA, USA
| | - Jean-Baptiste Pochon
- Jane and Terry Semel Institute for Neuroscience and Human Behavior and the Department of Psychiatry, University of California at Los Angeles, Los Angeles, CA, USA
| | - Dara Ghahremani
- Jane and Terry Semel Institute for Neuroscience and Human Behavior and the Department of Psychiatry, University of California at Los Angeles, Los Angeles, CA, USA
| | - Andrew C Dean
- Jane and Terry Semel Institute for Neuroscience and Human Behavior and the Department of Psychiatry, University of California at Los Angeles, Los Angeles, CA, USA
| | - Rachel F Tyndale
- Department of Pharmacology & Toxicology, and Department of Psychiatry, University of Toronto, and Campbell Family Mental Health Research Institute, Centre for Addiction & Mental Health, Toronto, ON, Canada
| | - Nicole Petersen
- Jane and Terry Semel Institute for Neuroscience and Human Behavior and the Department of Psychiatry, University of California at Los Angeles, Los Angeles, CA, USA
| | - Shane Marohnic
- Jane and Terry Semel Institute for Neuroscience and Human Behavior and the Department of Psychiatry, University of California at Los Angeles, Los Angeles, CA, USA
| | - Andrea Karaiskaki
- Jane and Terry Semel Institute for Neuroscience and Human Behavior and the Department of Psychiatry, University of California at Los Angeles, Los Angeles, CA, USA
| | - Edythe D London
- Brain Research Institute, University of California at Los Angeles, Los Angeles, CA, USA.
- Jane and Terry Semel Institute for Neuroscience and Human Behavior and the Department of Psychiatry, University of California at Los Angeles, Los Angeles, CA, USA.
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10
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Koh DH. The relationship between heated cigarette smoking and blood white blood cell count: a population-based cross-sectional study. Public Health 2023; 222:154-159. [PMID: 37544126 DOI: 10.1016/j.puhe.2023.07.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 04/21/2023] [Accepted: 07/05/2023] [Indexed: 08/08/2023]
Abstract
OBJECTIVES Conventional cigarette smoking increases inflammation and white blood cell (WBC) counts. However, there have been limited studies on the relationship between heated cigarette smoking and WBC counts. This study aimed to examine this relationship using nationally representative population-based health data. STUDY DESIGN This was a population-based cross-sectional study. METHODS The Korea National Health and Nutrition Examination Survey database was used to analyze this relationship. Data related to sex, age, body mass index (BMI), WBC count, and smoking history were obtained from the database. The smoking-related questionnaires included smoking status, smoking type (heated or conventional cigarettes), and smoking amount. The summary statistics of the WBC counts were calculated according to sex, smoking status, and smoking type. In addition, the exposure-response relationship between the smoking amount and WBC count was examined by smoking type, controlling for sex, age, and BMI. RESULTS In total, 9747 WBC measurements were used in the analyses. WBC count increased in conventional cigarette smokers, while there was no significant difference in WBC count between heated cigarette smokers and non-smokers. The WBC count showed a positive dose-response relationship with the smoking amount in both conventional and heated cigarette smokers. CONCLUSIONS The results confirm that conventional cigarette smoking increases WBC counts. Furthermore, the results suggest that heated cigarette smoking does not lead to a significant increase in WBC counts, although it indicates a potential dose-response relationship with WBC count. Further research with larger sample sizes is needed to confirm whether these results reflect true associations.
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Affiliation(s)
- D-H Koh
- Department of Occupational and Environmental Medicine, International St. Mary's Hospital, Catholic Kwandong University, Incheon, South Korea.
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11
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Khan Z, Gupta GD, Mehan S. Cellular and Molecular Evidence of Multiple Sclerosis Diagnosis and Treatment Challenges. J Clin Med 2023; 12:4274. [PMID: 37445309 DOI: 10.3390/jcm12134274] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 06/19/2023] [Accepted: 06/21/2023] [Indexed: 07/15/2023] Open
Abstract
Multiple sclerosis (MS) is a chronic autoimmune disease that impacts the central nervous system and can result in disability. Although the prevalence of MS has increased in India, diagnosis and treatment continue to be difficult due to several factors. The present study examines the difficulties in detecting and treating multiple sclerosis in India. A lack of MS knowledge among healthcare professionals and the general public, which delays diagnosis and treatment, is one of the significant issues. Inadequate numbers of neurologists and professionals with knowledge of MS management also exacerbate the situation. In addition, MS medications are expensive and not covered by insurance, making them inaccessible to most patients. Due to the absence of established treatment protocols and standards for MS care, India's treatment techniques vary. In addition, India's population diversity poses unique challenges regarding genetic variations, cellular and molecular abnormalities, and the potential for differing treatment responses. MS is more difficult to accurately diagnose and monitor due to a lack of specialized medical supplies and diagnostic instruments. Improved awareness and education among healthcare professionals and the general public, as well as the development of standardized treatment regimens and increased investment in MS research and infrastructure, are required to address these issues. By addressing these issues, it is anticipated that MS diagnosis and treatment in India will improve, leading to better outcomes for those affected by this chronic condition.
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Affiliation(s)
- Zuber Khan
- Division of Neuroscience, Department of Pharmacology, ISF College of Pharmacy, IK Gujral Punjab Technical University, Jalandhar 144603, India
| | - Ghanshyam Das Gupta
- Department of Pharmaceutics, ISF College of Pharmacy, IK Gujral Punjab Technical University, Jalandhar 144603, India
| | - Sidharth Mehan
- Division of Neuroscience, Department of Pharmacology, ISF College of Pharmacy, IK Gujral Punjab Technical University, Jalandhar 144603, India
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12
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Allen MS, Tostes RC. Cigarette smoking and erectile dysfunction: an updated review with a focus on pathophysiology, e-cigarettes, and smoking cessation. Sex Med Rev 2023. [DOI: 10.1093/sxmrev/qeac007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Abstract
Introduction
Cigarette smoking has major health implications and causes substantial damage to all organ systems. Approximately one-third of men are active smokers worldwide, and most men are unaware that cigarette smoking can contribute to erectile dysfunction (ED).
Objectives
This article aims to provide a comprehensive overview of research conducted on cigarette smoking and ED, with a particular focus on pathophysiology, electronic cigarettes (e-cigarettes), and smoking cessation.
Methods
A manual literature search was conducted on all research conducted on cigarette smoking and ED up to October 2022.
Results
Substantial evidence is now available showing that past and current cigarette smoking has dose-dependent associations with ED in studies controlling for age and important health comorbidities. Cigarette smoke contains nicotine, carbon monoxide, oxidant chemicals, and metals that can damage the endothelium and disrupt erectile processes. For current smokers, smoking abstinence can strengthen the endothelium and reverse diminished erectile function. The effect of e-cigarettes on endothelial damage and ED remains largely untested. E-cigarettes expose users to fine and ultrafine particles and toxins that can increase risk of cardiovascular injury, but these acute effects appear less potent than conventional cigarettes (long-term cardiovascular effects are still unknown). E-cigarettes are therefore likely to have less harmful effects on ED than conventional cigarettes.
Conclusions
Smoking cessation programs that focus on nicotine replacement therapy (transdermal patches, gum, or inhalers), behavioral counseling, social support, and education programs can be effective approaches to ED treatment in active smokers. Temporarily transferring from regular cigarettes to e-cigarettes—which transmit some of the same carcinogens as conventional cigarettes and are likely to have some long-term cardiovascular effects that disrupt erectile function—might also be useful for long-term smoking cessation and treatment of ED.
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Affiliation(s)
- Mark S Allen
- Department of Psychology and Therapeutic Studies , Leeds Trinity University, Leeds, LS18 5HD, UK
| | - Rita C Tostes
- Department of Pharmacology, University of São Paulo , São Paulo, Brazil
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13
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Kip E, Parr-Brownlie LC. Healthy lifestyles and wellbeing reduce neuroinflammation and prevent neurodegenerative and psychiatric disorders. Front Neurosci 2023; 17:1092537. [PMID: 36875655 PMCID: PMC9975355 DOI: 10.3389/fnins.2023.1092537] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 01/23/2023] [Indexed: 02/17/2023] Open
Abstract
Since the mid-20th century, Western societies have considered productivity and economic outcomes are more important than focusing on people's health and wellbeing. This focus has created lifestyles with high stress levels, associated with overconsumption of unhealthy foods and little exercise, which negatively affect people's lives, and subsequently lead to the development of pathologies, including neurodegenerative and psychiatric disorders. Prioritizing a healthy lifestyle to maintain wellbeing may slow the onset or reduce the severity of pathologies. It is a win-win for everyone; for societies and for individuals. A balanced lifestyle is increasingly being adopted globally, with many doctors encouraging meditation and prescribing non-pharmaceutical interventions to treat depression. In psychiatric and neurodegenerative disorders, the inflammatory response system of the brain (neuroinflammation) is activated. Many risks factors are now known to be linked to neuroinflammation such as stress, pollution, and a high saturated and trans fat diet. On the other hand, many studies have linked healthy habits and anti-inflammatory products with lower levels of neuroinflammation and a reduced risk of neurodegenerative and psychiatric disorders. Sharing risk and protective factors is critical so that individuals can make informed choices that promote positive aging throughout their lifespan. Most strategies to manage neurodegenerative diseases are palliative because neurodegeneration has been progressing silently for decades before symptoms appear. Here, we focus on preventing neurodegenerative diseases by adopting an integrated "healthy" lifestyle approach. This review summarizes the role of neuroinflammation on risk and protective factors of neurodegenerative and psychiatric disorders.
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Affiliation(s)
- Elodie Kip
- Department of Anatomy, School of Biomedical Sciences, Brain Health Research Centre, Brain Research New Zealand, University of Otago, Dunedin, New Zealand
| | - Louise C Parr-Brownlie
- Department of Anatomy, School of Biomedical Sciences, Brain Health Research Centre, Brain Research New Zealand, University of Otago, Dunedin, New Zealand
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14
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Wu M, Williams GJ, Chen G, Zhang L, Hu C, Dai X, Du W, Hua J. Prenatal second-hand smoke exposure and the risk of suspected developmental coordination disorder in preschoolers: A nationwide retrospective cohort study in China. Front Public Health 2022; 10:993471. [PMID: 36438244 PMCID: PMC9686837 DOI: 10.3389/fpubh.2022.993471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 10/24/2022] [Indexed: 11/10/2022] Open
Abstract
Prenatal exposure to second-hand smoke (SHS) is associated with increased neurodevelopmental problems in children, however, its impact on the risk of developmental coordination disorder (DCD) in preschoolers have not been studied thoroughly. Herein, we probed this association based on a nationwide retrospective cohort study of 149,005 preschoolers in China. We divided the objects into the prenatal SHS-exposed group or the no prenatal smoke exposed group (NS-exposed group). Preschoolers were assessed for motor proficiency by the Chinese version of Little Developmental Coordination Disorder Questionnaire (LDCDQ). Multivariable logistic regression was used to evaluate the associations. The prevalence of prenatal SHS exposure was 23.89%. Generally, the prevalence of suspected DCD was significantly higher in prenatal SHS-exposed group (16.38% VS. 14.19%, P < 0.001). With the increase of age, the mean total scores of LDCDQ of both boys and girls increased gradually; and the prevalence of suspected DCD in girls was higher than that in boys in the same age group. After adjusting for covariates, prenatal SHS exposure had the negative association with the total score of LDCDQ and increased the risk of suspected DCD. Our results suggest a need for interventions designed to reduce maternal SHS exposure during pregnancy, early screen for DCD and increase targeted movement and coordination skill training for vulnerable children.
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Affiliation(s)
- Meiqin Wu
- Shanghai Key Laboratory of Maternal Fetal Medicine, Department of Women's and Children's Health Care, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Gareth J. Williams
- School of Social Sciences, Nottingham Trent University, Nottingham, United Kingdom
| | - Guixia Chen
- Department of Children Healthcare, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, China
| | - Lan Zhang
- Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Chunping Hu
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaotian Dai
- Shanghai Key Laboratory of Maternal Fetal Medicine, Department of Women's and Children's Health Care, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Wenchong Du
- Department of Psychology, Nottingham Trent University, Nottingham, United Kingdom,*Correspondence: Wenchong Du
| | - Jing Hua
- Shanghai Key Laboratory of Maternal Fetal Medicine, Department of Women's and Children's Health Care, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, China,Jing Hua
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15
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Li M, Ma Y, Fu Y, Liu J, Hu H, Zhao Y, Huang L, Tan L. Association between air pollution and
CSF sTREM2
in cognitively normal older adults: The
CABLE
study. Ann Clin Transl Neurol 2022; 9:1752-1763. [PMID: 36317226 PMCID: PMC9639632 DOI: 10.1002/acn3.51671] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 09/04/2022] [Accepted: 09/16/2022] [Indexed: 11/06/2022] Open
Abstract
Objectives Ambient air pollution aggravates the process of Alzheimer's disease (AD) pathology. Currently, the exact inflammatory mechanisms underlying these links from clinical research remain largely unclear. Methods This study included 1,131 cognitively intact individuals from the Chinese Alzheimer's Biomarker and LifestylE database with data provided on cerebrospinal fluid (CSF) AD biomarkers (amyloid beta‐peptide 42 [Aβ42], total tau [t‐tau], and phosphorylated tau [p‐tau]), neuroinflammatory (CSF sTREM2), and systemic inflammatory markers (high sensitivity C‐reactive protein and peripheral immune cells). The 2‐year averaged levels of ambient fine particulate matter with diameter <2.5 μm (PM2.5), nitrogen dioxide (NO2), and ozone (O3) were estimated at each participant's residence. Multiple‐adjusted models were approached to detect associations of air pollution with inflammatory markers and AD‐related proteins. Results Ambient 2‐year averaged exposure of PM2.5 was associated with changes of neuroinflammatory markers, that is, CSF sTREM2 (β = −0.116, p = 0.0002). Similar results were found for O3 exposure among the elderly (β = −0.111, p = 0.0280) or urban population (β = −0.090, p = 0.0144). No significant evidence supported NO2 related to CSF sTREM2. For potentially causal associations with accumulated AD pathologies, the total effects of PM2.5 on CSF amyloid‐related protein (CSF Aβ42 and p‐tau/Aβ42) were partly mediated by CSF sTREM2, with proportions of 14.22% and 47.15%, respectively. Additional analyses found inverse associations between peripheral inflammatory markers with PM2.5 and NO2, but a positive correlation with O3. Interpretation These findings demonstrated a strong link between PM2.5 exposure and microglial dysfunction. Furthermore, CSF sTREM2 as a key mediator modulated the influences of PM2.5 exposure on AD amyloid pathologies.
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Affiliation(s)
- Meng Li
- Department of Neurology Qingdao Municipal Hospital, Qingdao University Qingdao China
| | - Ya‐Hui Ma
- Department of Neurology Qingdao Municipal Hospital, Qingdao University Qingdao China
| | - Yan Fu
- Department of Neurology Qingdao Municipal Hospital, Qingdao University Qingdao China
| | - Jia‐Yao Liu
- Department of Neurology Qingdao Municipal Hospital, Qingdao University Qingdao China
| | - He‐Ying Hu
- Department of Neurology Qingdao Municipal Hospital, Qingdao University Qingdao China
| | - Yong‐Li Zhao
- Department of Neurology Qingdao Municipal Hospital, Qingdao University Qingdao China
| | - Liang‐Yu Huang
- Department of Neurology Qingdao Municipal Hospital, Qingdao University Qingdao China
| | - Lan Tan
- Department of Neurology Qingdao Municipal Hospital, Qingdao University Qingdao China
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16
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Effects of Chronic Inhalation of Electronic Cigarette Vapor Containing Nicotine on Neurobehaviors and Pre/Postsynaptic Neuron Markers. TOXICS 2022; 10:toxics10060338. [PMID: 35736946 PMCID: PMC9229830 DOI: 10.3390/toxics10060338] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 06/13/2022] [Accepted: 06/17/2022] [Indexed: 02/05/2023]
Abstract
Nicotine-exposed animal models exhibit neurobehavioral changes linked to impaired synaptic plasticity. Previous studies highlighted alterations in neurotransmitter levels following nicotine exposure. Vesicular glutamate transporter (VGLUT1) and vesicular gamma-aminobutyric acid (GABA) transporter (VGAT) are essential for the transport and release of glutamate and GABA, respectively, from presynaptic neurons into synapses. In our work, an e-cigarette device was used to deliver vapor containing nicotine to C57BL/6J mice for four weeks. Novel object recognition, locomotion, and Y-maze tests were performed to investigate the behavioral parameters. Protein studies were conducted to study the hippocampal expression of VGLUT1, VGAT, and postsynaptic density protein 95 (PSD95) as well as brain cytokine markers. Long-term memory and locomotion tests revealed that e-cigarette aerosols containing nicotine modulated recognition memory and motor behaviors. We found that vapor exposure increased VGLUT1 expression and decreased VGAT expression in the hippocampus. No alterations were found in PSD95 expression. We observed that vapor-containing nicotine exposure altered certain brain cytokines such as IFNβ-1 and MCP-5. Our work provides evidence of an association between neurobehavioral changes and altered hippocampal VGLUT1 and VGAT expression in mice exposed to e-cigarette vapors containing nicotine. Such exposure was also associated with altered neurobehaviors, which might affect neurodegenerative diseases.
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17
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Manouchehrinia A, Huang J, Hillert J, Alfredsson L, Olsson T, Kockum I, Constantinescu CS. Smoking Attributable Risk in Multiple Sclerosis. Front Immunol 2022; 13:840158. [PMID: 35309300 PMCID: PMC8927036 DOI: 10.3389/fimmu.2022.840158] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 02/14/2022] [Indexed: 12/14/2022] Open
Abstract
Tobacco smoke is an important modifiable environmental risk factor for multiple sclerosis (MS) risk. The population attributable fraction (AF) of MS due to smoking can be used to assess the contribution of smoking to the risk of MS development. We conducted a matched case-control study, including individuals with MS and population-based controls. Overall, sex- and genetic risk score-stratified AF due to smoking were calculated by fitting logistic regression models. We included 9,419 individuals with MS and 9,419 population-based matched controls. At the time of MS onset 44.1% of persons with MS and 35.9% of controls ever regularly smoked of which 38.1% and 29.2% were still smoking. The overall AF was 13.1% (95%CI: 10.7 to 15.4). The AF was 10.6% (95%CI: 7.4 to 13.7) in females and 19.1% (95%CI: 13.1 to 25.1) in males. The AF was 0.6% (95%CI: 0.0 to 2) in ex-smokers. In those having human leucocyte antigen (HLA) and non-HLA risk scores above the median levels of controls, the AF was 11.4% (95%CI: 6.8 to 15.9) and 12% (95%CI: 7.7 to 16.3), respectively. The AF was 17.6% (95%CI: 10.2 to 24.9) and 18.6% (95%CI: 5.5 to 31.6) in those with HLA and non-HLA risk scores below the median levels in controls, respectively. We noticed a decline in AF in recent birth cohorts. This study indicates that at least 13% of cases of MS could be prevented through the avoidance of tobacco smoking. Considering the prevalence of MS, this represents a very large group of people in absolute number.
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Affiliation(s)
| | - Jesse Huang
- Centre for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Jan Hillert
- Centre for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Lars Alfredsson
- Centre for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Tomas Olsson
- Centre for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Ingrid Kockum
- Centre for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Cris S Constantinescu
- Department of Neurology, Cooper Neurological Institute, Camden, NJ, United States.,Section of Clinical Neurology, Academic Division of Mental Health and Clinical Neuroscience, University of Nottingham, Nottingham, United Kingdom
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18
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Oral Cavity and Candida albicans: Colonisation to the Development of Infection. Pathogens 2022; 11:pathogens11030335. [PMID: 35335659 PMCID: PMC8953496 DOI: 10.3390/pathogens11030335] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 03/07/2022] [Accepted: 03/08/2022] [Indexed: 02/01/2023] Open
Abstract
Candida colonisation of the oral cavity increases in immunocompromised individuals which leads to the development of oral candidiasis. In addition, host factors such as xerostomia, smoking, oral prostheses, dental caries, diabetes and cancer treatment accelerate the disease process. Candida albicans is the primary causative agent of this infection, owing to its ability to form biofilm and hyphae and to produce hydrolytic enzymes and candialysin. Although mucosal immunity is activated, from the time hyphae-associated toxin is formed by the colonising C. albicans cells, an increased number and virulence of this pathogenic organism collectively leads to infection. Prevention of the development of infection can be achieved by addressing the host physiological factors and habits. For maintenance of oral health, conventional oral hygiene products containing antimicrobial compounds, essential oils and phytochemicals can be considered, these products can maintain the low number of Candida in the oral cavity and reduce their virulence. Vulnerable patients should be educated in order to increase compliance.
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19
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Blaskovic S, Donati Y, Ruchonnet-Metrailler I, Avila Y, Schittny D, Schlepütz CM, Schittny JC, Barazzone-Argiroffo C. Early life exposure to nicotine modifies lung gene response after elastase-induced emphysema. Respir Res 2022; 23:44. [PMID: 35241086 PMCID: PMC8895880 DOI: 10.1186/s12931-022-01956-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 02/13/2022] [Indexed: 11/30/2022] Open
Abstract
Background Chronic obstructive pulmonary disease (COPD) is among the top 5 causes of mortality in the world and can develop as a consequence of genetic and/or environmental factors. Current efforts are focused on identifying early life insults and how these contribute to COPD development. In line with this, our study focuses on the influence of early life nicotine exposure and its potential impact on (a) lung pulmonary functions, and (b) elastase-induced emphysema in adulthood.
Methods To address this hypothesis, we developed a model of 2 hits, delivered at different time points: mouse pups were first exposed to nicotine/placebo in utero and during lactation, and then subsequently received elastase/placebo at the age of 11 weeks. The effect of nicotine pretreatment and elastase instillation was assessed by (a) measurement of pulmonary function at post-elastase day (ped) 21, and (b) transcriptomic profiling at ped3 and 21, and complementary protein determination. Statistical significance was determined by 3- and 2-way ANOVA for pulmonary functions, and RNAseq results were analyzed using the R project.
Results We did not observe any impact of nicotine pre- and early post-natal exposure compared to control samples on lung pulmonary functions in adulthood, as measured by FLEXIVENT technology. After elastase instillation, substantial lung damage was detected by x-ray tomography and was accompanied by loss in body weight at ped3 as well as an increase in cell numbers, inflammatory markers in BAL and lung volume at ped21. Lung functions showed a decrease in elastance and an increase in deep inflation volume and pressure volume (pv) loop area in animals with emphysema at ped21. Nicotine had no effect on elastance and deep inflation volume, but did affect the pv loop area in animals with emphysema at ped21. Extensive transcriptomic changes were induced by elastase at ped3 both in the nicotine-pretreated and the control samples, with several pathways common to both groups, such as for cell cycle, DNA adhesion and DNA damage. Nicotine pretreatment affected the number of lymphocytes present in BAL after elastase instillation and some of the complement pathway related proteins, arguing for a slight modification of the immune response, as well as changes related to general body metabolism. The majority of elastase-induced transcriptomic changes detected at ped3 had disappeared at ped21. In addition, transcriptomic profiling singled out a common gene pool that was independently activated by nicotine and elastase. Conclusions Our study reports a broad spectrum of transient transcriptomic changes in mouse emphysema and identifies nicotine as influencing the emphysema-associated immune system response. Supplementary Information The online version contains supplementary material available at 10.1186/s12931-022-01956-4.
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Affiliation(s)
- Sanja Blaskovic
- Department of Pediatrics, Gynecology and Obstetrics, Faculty of Medicine, University of Geneva, 4 rue Gabrielle-Perret-Gentil, 1211, Genève 14, Switzerland.,Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland.,Institute of Anatomy, University of Bern, Bern, Switzerland
| | - Yves Donati
- Department of Pediatrics, Gynecology and Obstetrics, Faculty of Medicine, University of Geneva, 4 rue Gabrielle-Perret-Gentil, 1211, Genève 14, Switzerland.,Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Isabelle Ruchonnet-Metrailler
- Department of Pediatrics, Gynecology and Obstetrics, Faculty of Medicine, University of Geneva, 4 rue Gabrielle-Perret-Gentil, 1211, Genève 14, Switzerland.,Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Yannick Avila
- Department of Pediatrics, Gynecology and Obstetrics, Faculty of Medicine, University of Geneva, 4 rue Gabrielle-Perret-Gentil, 1211, Genève 14, Switzerland.,Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | | | | | | | - Constance Barazzone-Argiroffo
- Department of Pediatrics, Gynecology and Obstetrics, Faculty of Medicine, University of Geneva, 4 rue Gabrielle-Perret-Gentil, 1211, Genève 14, Switzerland. .,Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland.
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20
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Durão ACCDS, Brandão WN, Bruno V, W. Spelta LE, Duro SDO, Barreto dos Santos N, Paranhos BAPB, Zanluqui NG, Yonamine M, Pierre Schatzmann Peron J, Munhoz CD, Marcourakis T. In Utero Exposure to Environmental Tobacco Smoke Increases Neuroinflammation in Offspring. FRONTIERS IN TOXICOLOGY 2022; 3:802542. [PMID: 35295109 PMCID: PMC8915864 DOI: 10.3389/ftox.2021.802542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 12/13/2021] [Indexed: 12/03/2022] Open
Abstract
The embryonic stage is the most vulnerable period for congenital abnormalities. Due to its prolonged developmental course, the central nervous system (CNS) is susceptible to numerous genetic, epigenetic, and environmental influences. During embryo implantation, the CNS is more vulnerable to external influences such as environmental tobacco smoke (ETS), increasing the risk for delayed fetal growth, sudden infant death syndrome, and immune system abnormalities. This study aimed to evaluate the effects of in utero exposure to ETS on neuroinflammation in the offspring of pregnant mice challenged or not with lipopolysaccharide (LPS). After the confirmation of mating by the presence of the vaginal plug until offspring birth, pregnant C57BL/6 mice were exposed to either 3R4F cigarettes smoke (Kentucky University) or compressed air, twice a day (1h each), for 21 days. Enhanced glial cell and mixed cell cultures were prepared from 3-day-old mouse pups. After cell maturation, both cells were stimulated with LPS or saline. To inhibit microglia activation, minocycline was added to the mixed cell culture media 24 h before LPS challenge. To verify the influence of in utero exposure to ETS on the development of neuroinflammatory events in adulthood, a different set of 8-week-old animals was submitted to the Autoimmune Experimental Encephalomyelitis (EAE) model. The results indicate that cells from LPS-challenged pups exposed to ETS in utero presented high levels of proinflammatory cytokines such as interleukin 6 (IL-6) and tumor necrosis factor-alpha (TNFα) and decreased cell viability. Such a proinflammatory environment could modulate fetal programming by an increase in microglia and astrocytes miRNA155. This scenario may lead to the more severe EAE observed in pups exposed to ETS in utero.
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Affiliation(s)
| | - Wesley Nogueira Brandão
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Vitor Bruno
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Lídia Emmanuela W. Spelta
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Stephanie de Oliveira Duro
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Nilton Barreto dos Santos
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | | | - Nágela Ghabdan Zanluqui
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Maurício Yonamine
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | | | - Carolina Demarchi Munhoz
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
- *Correspondence: Carolina Demarchi Munhoz, ; Tania Marcourakis,
| | - Tania Marcourakis
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
- *Correspondence: Carolina Demarchi Munhoz, ; Tania Marcourakis,
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21
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Rocha DFA, Machado-Junior PA, Souza ABF, Castro TDF, Costa GDP, Talvani A, Bezerra FS, Cangussú SD. Lycopene Ameliorates Liver Inflammation and Redox Status in Mice Exposed to Long-Term Cigarette Smoke. BIOMED RESEARCH INTERNATIONAL 2021; 2021:7101313. [PMID: 34869769 PMCID: PMC8639233 DOI: 10.1155/2021/7101313] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 11/09/2021] [Indexed: 01/11/2023]
Abstract
Cigarette smoke (CS) is the major cause of preventable death worldwide, and it can also cause damage to extrapulmonary organs, such as the liver, mainly due the generation of reactive oxygen species (ROS). The liver is an essential organ for human survival since it is mainly responsible for the body metabolism and among other things and it is the place where many endogenous and exogenous substances undergo biological transformation. Lycopene is a nonprovitamin A carotenoid found in red fruits and vegetables, and its role as a potent antioxidant is well known. In this study, we hypothesized that lycopene could protect mouse liver against long-term CS exposure. Thirty C57BL/6 mice were exposed to twelve cigarette smoke (12 cigarettes per day) for 60 days and pretreated with 25 mg/kg/day or 50 mg/kg/day of lycopene via orogastric gavage. After euthanasia, the hepatic tissue was collected for histopathological, antioxidant defense, oxidative stress, inflammatory, and collagen deposition analysis. Our analysis demonstrated that lycopene results in a suitable outcome to ameliorate the pathological changes, inflammatory and antioxidant profile in a mouse model of long-term CS exposure, and collagen accumulation in the hepatic extracellular matrix. This study demonstrates for the first time that supplementation of lycopene can be a possible pharmacological tool for the treatment of hepatic damage caused by exposure to long-term CS.
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Affiliation(s)
- Daniela Fonseca Abdo Rocha
- Laboratory of Experimental Pathophysiology (LAFEx), Department of Biological Sciences (DECBI), Institute of Exact and Biological Sciences (ICEB), Federal University of Ouro Preto (UFOP), 35400-00 Ouro Preto, MG, Brazil
| | - Pedro Alves Machado-Junior
- Laboratory of Experimental Pathophysiology (LAFEx), Department of Biological Sciences (DECBI), Institute of Exact and Biological Sciences (ICEB), Federal University of Ouro Preto (UFOP), 35400-00 Ouro Preto, MG, Brazil
| | - Ana Beatriz Farias Souza
- Laboratory of Experimental Pathophysiology (LAFEx), Department of Biological Sciences (DECBI), Institute of Exact and Biological Sciences (ICEB), Federal University of Ouro Preto (UFOP), 35400-00 Ouro Preto, MG, Brazil
| | - Thalles de Freitas Castro
- Laboratory of Experimental Pathophysiology (LAFEx), Department of Biological Sciences (DECBI), Institute of Exact and Biological Sciences (ICEB), Federal University of Ouro Preto (UFOP), 35400-00 Ouro Preto, MG, Brazil
| | - Guilherme de Paula Costa
- Laboratory of Immunobiology of Inflammation (LABIIN), Department of Biological Sciences (DECBI), Institute of Exact and Biological Sciences (ICEB), Federal University of Ouro Preto (UFOP), 35400-00 Ouro Preto, MG, Brazil
| | - André Talvani
- Laboratory of Immunobiology of Inflammation (LABIIN), Department of Biological Sciences (DECBI), Institute of Exact and Biological Sciences (ICEB), Federal University of Ouro Preto (UFOP), 35400-00 Ouro Preto, MG, Brazil
| | - Frank Silva Bezerra
- Laboratory of Experimental Pathophysiology (LAFEx), Department of Biological Sciences (DECBI), Institute of Exact and Biological Sciences (ICEB), Federal University of Ouro Preto (UFOP), 35400-00 Ouro Preto, MG, Brazil
| | - Silvia Dantas Cangussú
- Laboratory of Experimental Pathophysiology (LAFEx), Department of Biological Sciences (DECBI), Institute of Exact and Biological Sciences (ICEB), Federal University of Ouro Preto (UFOP), 35400-00 Ouro Preto, MG, Brazil
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22
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Crotalphine Attenuates Pain and Neuroinflammation Induced by Experimental Autoimmune Encephalomyelitis in Mice. Toxins (Basel) 2021; 13:toxins13110827. [PMID: 34822611 PMCID: PMC8624587 DOI: 10.3390/toxins13110827] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 11/12/2021] [Accepted: 11/17/2021] [Indexed: 12/11/2022] Open
Abstract
Multiple sclerosis (MS) is a demyelinating disease of inflammatory and autoimmune origin, which induces sensory and progressive motor impairments, including pain. Cells of the immune system actively participate in the pathogenesis and progression of MS by inducing neuroinflammation, tissue damage, and demyelination. Crotalphine (CRO), a structural analogue to a peptide firstly identified in Crotalus durissus terrificus snake venom, induces analgesia by endogenous opioid release and type 2 cannabinoid receptor (CB2) activation. Since CB2 activation downregulates neuroinflammation and ameliorates symptoms in mice models of MS, it was presently investigated whether CRO has a beneficial effect in the experimental autoimmune encephalomyelitis (EAE). CRO was administered on the 5th day after immunization, in a single dose, or five doses starting at the peak of disease. CRO partially reverted EAE-induced mechanical hyperalgesia and decreased the severity of the clinical signs. In addition, CRO decreases the inflammatory infiltrate and glial cells activation followed by TNF-α and IL-17 downregulation in the spinal cord. Peripherally, CRO recovers the EAE-induced impairment in myelin thickness in the sciatic nerve. Therefore, CRO interferes with central and peripheral neuroinflammation, opening perspectives to MS control.
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23
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Zarghami A, Li Y, Claflin SB, van der Mei I, Taylor BV. Role of environmental factors in multiple sclerosis. Expert Rev Neurother 2021; 21:1389-1408. [PMID: 34494502 DOI: 10.1080/14737175.2021.1978843] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
INTRODUCTION Environmental factors play a significant role in the pathogenesis and progression of multiple sclerosis (MS), either acting alone or by interacting with other environmental or genetic factors. This cumulative exposure to external risk factors is highly complex and highly variable between individuals. AREAS COVERED We narratively review the current evidence on the role of environment-specific risk factors in MS onset and progression, as well as the effect of gene-environment interactions and the timing of exposure We have reviewed the latest literature, by Ovid Medline, retrieving the most recently published systematic reviews and/or meta-analyses and more recent studies not previously included in meta-analyses or systematic reviews. EXPERT OPINION There is some good evidence supporting the impact of some environmental risk factors in increasing the risk of developing MS. Tobacco smoking, low vitamin D levels and/or low sun exposure, Epstein Barr Virus (EBV) seropositivity and a history of infectious mononucleosis may increase the risk of developing MS. Additionally, there is some evidence that gene-smoking, gene-EBV, and smoking-EBV interactions additively affect the risk of MS onset. However, the evidence for a role of other environmental factors in MS progression is limited. Finally, there is some evidence that tobacco smoking, insufficient vitamin D levels and/or sun exposure have impacts on MS phenotypes and various markers of disease activity including relapse, disability progression and MRI findings. Clearly the effect of environmental factors on MS disease course is an area that requires significantly more research.
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Affiliation(s)
- Amin Zarghami
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, Australia
| | - Ying Li
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, Australia
| | - Suzi B Claflin
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, Australia
| | - Ingrid van der Mei
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, Australia
| | - Bruce V Taylor
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, Australia
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24
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Barac IS, Văcăraș V, Cozma A, Văleanu M, Decea N, Mureșanu DF, Procopciuc LM. IL27 T4730C Polymorphism and Serology in Multiple Sclerosis: A Pilot Study. In Vivo 2021; 35:2845-2853. [PMID: 34410977 DOI: 10.21873/invivo.12572] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 05/31/2021] [Accepted: 06/04/2021] [Indexed: 01/05/2023]
Abstract
BACKGROUND Multiple sclerosis (MS) is one of the most debilitating neurological diseases of young adults. The presence of a single nucleotide polymorphism in the promoter regions of the interleukin 27 gene (IL27 T4730C, rs181206) may alter the transcription and the production of cytokine levels, leading to MS. PATIENTS AND METHODS We performed a case-control study including 82 individuals: 51 patients diagnosed with MS and 31 healthy controls. Polymerase chain reaction-restriction fragment length polymorphism was used in order to determine the genotypes for the IL27 T4730С polymorphism and enzyme-linked immunosorbent assay to measure the serum IL27 level. RESULTS Carriers of the T4730С polymorphism were found to have a 6-fold [95% confidence intervaI (CI)=1.83-19.63, p=0.002] increased risk for MS. Univariate logistic regression analysis showed an increased frequency of the TC4730 heterozygous genotype (39.2% vs. 9.7%) and also of the C4730 allele (27.45% vs. 8.06) in patients compared to controls, with a 6.02-fold increased risk (95% CI=1.61-22.46, p=0.006) and a 4.31-fold increased risk (95% CI=1.57-11.87, p=0.002) of developing MS. IL27 levels were significantly lower in patients compared to controls (12.35 versus 14.34 pg/ml, p=0.039), without significant differences between genotypes. Multivariate logistic analysis showed that IL27 T4730C polymorphism (odds ratio=6.272, 95% CI=1.84-21.40, p=0.003) and smoking (odds ratio=4.214, 95% CI=1.39-12.74, p=0.011) represented independent risk factors for MS. CONCLUSION Our study provides a possible link between IL27 level and IL27 T4730C gene polymorphism and the risk for developing MS in a Romanian population.
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Affiliation(s)
- Ioana S Barac
- Department of Clinical Neurosciences, Iuliu Hațieganu University of Medicine and Pharmacy Cluj-Napoca, Cluj-Napoca, Romania
| | - Vitalie Văcăraș
- Department of Clinical Neurosciences, Iuliu Hațieganu University of Medicine and Pharmacy Cluj-Napoca, Cluj-Napoca, Romania
| | - Angela Cozma
- Department of Internal Medicine, Iuliu Hațieganu University of Medicine and Pharmacy Cluj-Napoca, Cluj-Napoca, Romania
| | - Mădălina Văleanu
- Department of Medical Informatics and Biostatistics, Iuliu Hațieganu University of Medicine and Pharmacy Cluj-Napoca, Cluj-Napoca, Romania
| | - Nicoleta Decea
- Department of Physiology, Iuliu Hațieganu University of Medicine and Pharmacy Cluj-Napoca, Cluj-Napoca, Romania
| | - Dafin F Mureșanu
- Department of Clinical Neurosciences, Iuliu Hațieganu University of Medicine and Pharmacy Cluj-Napoca, Cluj-Napoca, Romania
| | - Lucia M Procopciuc
- Department of Medical Biochemistry, Iuliu Hațieganu University of Medicine and Pharmacy Cluj-Napoca, Cluj-Napoca, Romania
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25
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Ma L, Gao X, Geng L, You K, Wu Z, Li Y, Han Q, Wang Y, Guo H. Efficacy and safety of photodynamic therapy mediated by 5-aminolevulinic acid for the treatment of cervical intraepithelial neoplasia 2: A single-center, prospective, cohort study. Photodiagnosis Photodyn Ther 2021; 36:102472. [PMID: 34348187 DOI: 10.1016/j.pdpdt.2021.102472] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 07/22/2021] [Accepted: 07/30/2021] [Indexed: 01/10/2023]
Abstract
BACKGROUND Photodynamic therapy (PDT) mediated by 5-aminolevulinic acid (5-ALA) is a minimally-invasive treatment for cervical intraepithelial neoplasia (CIN). The present study was carried out to investigate the effect of 5-ALA-PDT on CIN2 and the factors influencing outcome of 5-ALA-PDT. METHODS Patients diagnosed as CIN2 who met the inclusion criteria were enrolled in this study sequentially from January 2019 to April 2020. Patients were treated by PDT or cryotherapy according to their intentions. The primary endpoint was pathological regression. The secondary endpoint was HPV clearance. Affecting factors of the efficacy of PDT and adverse events were also assessed during treatment. RESULTS A total of 210 patients were enrolled, including 97 patients in PDT group and 101 patients in cryotherapy group, with 12 patients excluded. There was no statistical difference in population characteristics. The pathological regression rate in PDT group was 92.0% (80/87), compared with 81.4% (79/97) in cryotherapy group (P < 0.05). The HPV clearance rate was 64.4% (56/87) in PDT group and 57.8% (56/97) in cryotherapy group (P = 0.36). The main side effects of PDT were abdominal pain (24.1%, 21/87) and increased vaginal secretions (23.0%, 20/87). On univariate analysis, the risk for lesions persisting at 6 months after PDT was increased by recurrent genital tract inflammation (P = 0.004), smoking or passive smoking (P = 0.020), and multicentric lesions (P = 0.020). CONCLUSION PDT can be a safe and efficient treatment for CIN2. Risk factors for persisting HSIL after PDT include recurrent genital tract inflammation, smoking or passive smoking, and multicentric lesions.
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Affiliation(s)
- Lingyu Ma
- Department of Obstetrics and Gynecology, Peking University Third Hospital, 100191, 49 North Garden Rd., Haidian District, Beijing, China
| | - Xinran Gao
- Department of Obstetrics and Gynecology, Peking University Third Hospital, 100191, 49 North Garden Rd., Haidian District, Beijing, China
| | - Li Geng
- Department of Obstetrics and Gynecology, Peking University Third Hospital, 100191, 49 North Garden Rd., Haidian District, Beijing, China
| | - Ke You
- Department of Obstetrics and Gynecology, Peking University Third Hospital, 100191, 49 North Garden Rd., Haidian District, Beijing, China
| | - Zhangxin Wu
- Department of Obstetrics and Gynecology, Peking University Third Hospital, 100191, 49 North Garden Rd., Haidian District, Beijing, China
| | - Yuan Li
- Department of Obstetrics and Gynecology, Peking University Third Hospital, 100191, 49 North Garden Rd., Haidian District, Beijing, China
| | - Qin Han
- Department of Obstetrics and Gynecology, Peking University Third Hospital, 100191, 49 North Garden Rd., Haidian District, Beijing, China
| | - Yanjie Wang
- Department of Obstetrics and Gynecology, Peking University Third Hospital, 100191, 49 North Garden Rd., Haidian District, Beijing, China.
| | - Hongyan Guo
- Department of Obstetrics and Gynecology, Peking University Third Hospital, 100191, 49 North Garden Rd., Haidian District, Beijing, China.
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Dungog RJ, Tamanal JM, Kim CH. The Assessment of Lifestyle Status among High School and College Students in Luzon, Philippines. J Lifestyle Med 2021; 11:57-65. [PMID: 34549027 PMCID: PMC8430313 DOI: 10.15280/jlm.2021.11.2.57] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 06/15/2021] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Lifestyle has been one of the central subjects of increasing research interest worldwide and acknowledged as part of the relevant factors of an individual's health status. The World Health Organization defines health as a state of complete physical, mental, and social well-being, and not merely the absence of disease. The purpose of this study is to assess lifestyle status among high school and college students and to explore which sociodemographic variables have influenced such existing healthy lifestyle behaviors. METHODS This is a descriptive cross-sectional study that was conducted among 230 students from the high school and college. The questionnaire included descriptive information and the Healthy Lifestyle Screening Tool (HLST) to assess lifestyle scores among students from the high school and college. Socio-demographic characteristics of students included were perceived family income, domestic status or people living with, school life satisfaction, happiness rate, and self-rated health status. RESULTS The results of this study showed the significance of lifestyle status among high school and college students having total scores of 106.56 (SD = 28.11) and 100.9 (32.91) respectively. Sociodemographic and health-related characteristics had significance in perceived economic status, life satisfaction, health status, and happiness rate. Furthermore, healthy lifestyle subcomponents had significant differences in water, air, rest, exercise, nutrition, and trust. CONCLUSION Healthy lifestyle status among students both in high school and college is low specifically in components such as sunlight, water, air, rest, exercise, nutrition, temperance as well as the general physical condition. Adherence to healthy lifestyle behaviors among students are needing emphasis and guidance through promotion and education. Health education programs and promotions in institutions need to be carried out and be well-implemented for students to achieve and maintain healthy lifestyle behaviors.
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Affiliation(s)
- Rusally Joy Dungog
- Department of Addiction Science, College of Health Science and Social Welfare, Sahmyook University Graduate School, Seoul, Korea
| | - Jerre Mae Tamanal
- Department of Addiction Science, College of Health Science and Social Welfare, Sahmyook University Graduate School, Seoul, Korea
| | - Cheong Hoon Kim
- Department of Addiction Science, College of Health Science and Social Welfare, Sahmyook University Graduate School, Seoul, Korea
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27
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Wang W, Zhang Z, Deng Y, Yang Z, Hou J, Long H, Lei M, Wu W. Anti-neuroinflammatory activity of Shenqi Fuzheng Injection and its main active constituents. Biosci Trends 2021; 15:231-239. [PMID: 34176826 DOI: 10.5582/bst.2021.01140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Enhancement of alternative activation (M2) in microglia is a promising therapeutic target for microglia-mediated neuroinflammation. Shenqi Fuzheng Injection (SFI) is a clinical adjuvant treatment for cancer to reduce the side effects during cancer treatment, including boosting mood and improving appetite. However, the mechanism of SFI's effects on central symptoms is not clear. Therefore, using arginase 1 (Arg1) and transforming growth beta-1 (Tgfb1) as markers for M2 microglia activation, we found that compounds 1, 5, 12, 14, and 15 are the major M2-promoting constituents in SFI, which significantly upregulated Arg1 or Tgfb1 gene expression. Our results suggested that these compounds in SFI may promote M2 microglial activation and have potential uses in modulating microglial activation and alleviating neuroinflammation.
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Affiliation(s)
- Wenwen Wang
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China.,Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, China
| | - Zijia Zhang
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Yanping Deng
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Zhixin Yang
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Jinjun Hou
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Huali Long
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Min Lei
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Wanying Wu
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
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28
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Peng H, Wu X, Wen Y, Lin J. Association between elevated body mass index in non-smokers and autoimmune diseases: A two-sample Mendelian randomization analysis. Autoimmun Rev 2021; 20:102853. [PMID: 33971344 DOI: 10.1016/j.autrev.2021.102853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Revised: 02/15/2021] [Accepted: 02/20/2021] [Indexed: 10/21/2022]
Affiliation(s)
- Haoxin Peng
- Nanshan School, Guangzhou Medical University, Jingxiu Road, Panyu District, Guangzhou 511436, China.
| | - Xiangrong Wu
- Nanshan School, Guangzhou Medical University, Jingxiu Road, Panyu District, Guangzhou 511436, China
| | - Yaokai Wen
- Nanshan School, Guangzhou Medical University, Jingxiu Road, Panyu District, Guangzhou 511436, China
| | - Jinsheng Lin
- Nanshan School, Guangzhou Medical University, Jingxiu Road, Panyu District, Guangzhou 511436, China
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Angeloni B, Bigi R, Bellucci G, Mechelli R, Ballerini C, Romano C, Morena E, Pellicciari G, Reniè R, Rinaldi V, Buscarinu MC, Romano S, Ristori G, Salvetti M. A Case of Double Standard: Sex Differences in Multiple Sclerosis Risk Factors. Int J Mol Sci 2021; 22:ijms22073696. [PMID: 33918133 PMCID: PMC8037645 DOI: 10.3390/ijms22073696] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 03/29/2021] [Accepted: 03/30/2021] [Indexed: 12/12/2022] Open
Abstract
Multiple sclerosis is a complex, multifactorial, dysimmune disease prevalent in women. Its etiopathogenesis is extremely intricate, since each risk factor behaves as a variable that is interconnected with others. In order to understand these interactions, sex must be considered as a determining element, either in a protective or pathological sense, and not as one of many variables. In particular, sex seems to highly influence immune response at chromosomal, epigenetic, and hormonal levels. Environmental and genetic risk factors cannot be considered without sex, since sex-based immunological differences deeply affect disease onset, course, and prognosis. Understanding the mechanisms underlying sex-based differences is necessary in order to develop a more effective and personalized therapeutic approach.
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Affiliation(s)
- Benedetta Angeloni
- Centre for Experimental Neurological Therapies (CENTERS), Department of Neurosciences, Mental Health and Sensory Organs, Sapienza University of Rome, 00189 Rome, Italy; (B.A.); (G.B.); (C.B.); (C.R.); (E.M.); (G.P.); (R.R.); (V.R.); (M.C.B.); (S.R.); (M.S.)
| | - Rachele Bigi
- Centre for Experimental Neurological Therapies (CENTERS), Department of Neurosciences, Mental Health and Sensory Organs, Sapienza University of Rome, 00189 Rome, Italy; (B.A.); (G.B.); (C.B.); (C.R.); (E.M.); (G.P.); (R.R.); (V.R.); (M.C.B.); (S.R.); (M.S.)
- Correspondence: (R.B.); (G.R.)
| | - Gianmarco Bellucci
- Centre for Experimental Neurological Therapies (CENTERS), Department of Neurosciences, Mental Health and Sensory Organs, Sapienza University of Rome, 00189 Rome, Italy; (B.A.); (G.B.); (C.B.); (C.R.); (E.M.); (G.P.); (R.R.); (V.R.); (M.C.B.); (S.R.); (M.S.)
| | - Rosella Mechelli
- San Raffaele Roma Open University, 00166 Rome, Italy;
- Scientific Institute for Research, Hospitalization and Healthcare San Raffaele Pisana (IRCCS), 00166 Rome, Italy
| | - Chiara Ballerini
- Centre for Experimental Neurological Therapies (CENTERS), Department of Neurosciences, Mental Health and Sensory Organs, Sapienza University of Rome, 00189 Rome, Italy; (B.A.); (G.B.); (C.B.); (C.R.); (E.M.); (G.P.); (R.R.); (V.R.); (M.C.B.); (S.R.); (M.S.)
| | - Carmela Romano
- Centre for Experimental Neurological Therapies (CENTERS), Department of Neurosciences, Mental Health and Sensory Organs, Sapienza University of Rome, 00189 Rome, Italy; (B.A.); (G.B.); (C.B.); (C.R.); (E.M.); (G.P.); (R.R.); (V.R.); (M.C.B.); (S.R.); (M.S.)
| | - Emanuele Morena
- Centre for Experimental Neurological Therapies (CENTERS), Department of Neurosciences, Mental Health and Sensory Organs, Sapienza University of Rome, 00189 Rome, Italy; (B.A.); (G.B.); (C.B.); (C.R.); (E.M.); (G.P.); (R.R.); (V.R.); (M.C.B.); (S.R.); (M.S.)
| | - Giulia Pellicciari
- Centre for Experimental Neurological Therapies (CENTERS), Department of Neurosciences, Mental Health and Sensory Organs, Sapienza University of Rome, 00189 Rome, Italy; (B.A.); (G.B.); (C.B.); (C.R.); (E.M.); (G.P.); (R.R.); (V.R.); (M.C.B.); (S.R.); (M.S.)
| | - Roberta Reniè
- Centre for Experimental Neurological Therapies (CENTERS), Department of Neurosciences, Mental Health and Sensory Organs, Sapienza University of Rome, 00189 Rome, Italy; (B.A.); (G.B.); (C.B.); (C.R.); (E.M.); (G.P.); (R.R.); (V.R.); (M.C.B.); (S.R.); (M.S.)
| | - Virginia Rinaldi
- Centre for Experimental Neurological Therapies (CENTERS), Department of Neurosciences, Mental Health and Sensory Organs, Sapienza University of Rome, 00189 Rome, Italy; (B.A.); (G.B.); (C.B.); (C.R.); (E.M.); (G.P.); (R.R.); (V.R.); (M.C.B.); (S.R.); (M.S.)
| | - Maria Chiara Buscarinu
- Centre for Experimental Neurological Therapies (CENTERS), Department of Neurosciences, Mental Health and Sensory Organs, Sapienza University of Rome, 00189 Rome, Italy; (B.A.); (G.B.); (C.B.); (C.R.); (E.M.); (G.P.); (R.R.); (V.R.); (M.C.B.); (S.R.); (M.S.)
| | - Silvia Romano
- Centre for Experimental Neurological Therapies (CENTERS), Department of Neurosciences, Mental Health and Sensory Organs, Sapienza University of Rome, 00189 Rome, Italy; (B.A.); (G.B.); (C.B.); (C.R.); (E.M.); (G.P.); (R.R.); (V.R.); (M.C.B.); (S.R.); (M.S.)
| | - Giovanni Ristori
- Centre for Experimental Neurological Therapies (CENTERS), Department of Neurosciences, Mental Health and Sensory Organs, Sapienza University of Rome, 00189 Rome, Italy; (B.A.); (G.B.); (C.B.); (C.R.); (E.M.); (G.P.); (R.R.); (V.R.); (M.C.B.); (S.R.); (M.S.)
- Neuroimmunology Unit, Scientific Institute for Research, Hospitalization and Healthcare Fondazione Santa Lucia (IRCCS), 00179 Rome, Italy
- Correspondence: (R.B.); (G.R.)
| | - Marco Salvetti
- Centre for Experimental Neurological Therapies (CENTERS), Department of Neurosciences, Mental Health and Sensory Organs, Sapienza University of Rome, 00189 Rome, Italy; (B.A.); (G.B.); (C.B.); (C.R.); (E.M.); (G.P.); (R.R.); (V.R.); (M.C.B.); (S.R.); (M.S.)
- Scientific Institute for Research, Hospitalization and Healthcare (IRCCS), Istituto Neurologico Mediterraneo (INM) Neuromed, 86077 Pozzilli, Italy
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Thawkar BS, Kaur G. Zebrafish as a Promising Tool for Modeling Neurotoxin-Induced Alzheimer's Disease. Neurotox Res 2021; 39:949-965. [PMID: 33687726 DOI: 10.1007/s12640-021-00343-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Revised: 02/17/2021] [Accepted: 02/21/2021] [Indexed: 12/01/2022]
Abstract
Drug discovery and development for Alzheimer's disease (AD) are complex and challenging due to the higher failure rate in the drug development process. The overproduction and deposition of Aβ senile plaque and intracellular neurofibrillary tangle (NFT) formation are well-recognized diagnostic hallmarks of AD. Numerous transgenic models of Alzheimer's disease have restrictions on cost-effectiveness and time in the preclinical setup. Zebrafish has emerged as an excellent complementary model for neurodegenerative research due to simpler organisms with robust, clearly visible behavior forms. Glutaminergic and cholinergic pathways responsible for learning and memory are present in zebrafish and actively participate in the transmission process. Therefore, it is imperative to study neurotoxic agents' mechanisms that induce dysfunction of memory, learning, and neurons in the zebrafish. This review illustrates the in-depth molecular mechanism of several neurotoxic agents such as okadaic acid, cigarette smoke extract, and metals to produce cognitive deficits or neurodegeneration similar to mammals. These updates would determine an ideal and effective neurotoxic agent for producing AD pathophysiology in the zebrafish brain for preclinical screening.
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Affiliation(s)
- Baban S Thawkar
- Shobhaben Pratapbhai Patel School of Pharmacy & Technology Management, SVKM's NMIMS, V.L. Mehta Road, Vile Parle (W), 400056, Mumbai, India
| | - Ginpreet Kaur
- Shobhaben Pratapbhai Patel School of Pharmacy & Technology Management, SVKM's NMIMS, V.L. Mehta Road, Vile Parle (W), 400056, Mumbai, India.
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Messina S, Mariano R, Geraldes R, Kim SH, Satukijcha C, Vecchio D, Chua YY, Taylor J, George N, Cavey A, Diaz AR, Reeve S, Everett R, De Luca G, Leite MI, Kim HJ, Palace J. The influence of smoking on the pattern of disability and relapse risk in AQP4-positive Neuromyelitis Optica Spectrum Disorder, MOG-Ab Disease and Multiple Sclerosis. Mult Scler Relat Disord 2021; 49:102773. [PMID: 33540279 DOI: 10.1016/j.msard.2021.102773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 01/06/2021] [Accepted: 01/14/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND the role of smoking on clinical outcomes of central nervous system (CNS) inflammatory disorders is unclear. To assess the effect of smoking on relapses and disability in neuromyelitis optica with aquaporin-4-antibodies (NMOSD-AQP4-Ab), Myelin Oligodendrocyte Glycoprotein-antibodies associated disease (MOGAD) and relapsing remitting Multiple Sclerosis (MS) patients. METHODS in a UK cohort of 101 NMOSD-AQP4-Ab, 70 MOGAD and 159 MS, and a Korean cohort of 97 NMOSD-AQ4-Ab, time to first relapse, annualised relapse rate, onset relapse severity and recovery, time to Expanded Disability Status Score(EDSS)/secondary progressive MS (SPMS) were compared between never-smokers and ever-smokers. All clinical data were collected under the local ethics between January 2017 and January 2019. RESULTS Smoking did not affect the risk of relapse in any of the diseases. The risk of reaching EDSS 6.0 in the UK NMOSD-AQP4-Ab cohort was higher in ever smokers but this did not achieve significance (HR 2.12, p=0.068). When combining the UK and Korea NMOSD-AQP4-Ab cohorts, poorer recovery from the onset attack was significantly more frequent in the ever-smokers versus the never smokers (55% vs 38%, p=0.04). In the MS cohort the risk of reaching EDSS 6 and SPMS was significantly higher in the ever-smokers (HR=2.67, p=0.01 and HR=3.18, p=0.001). In MOGAD similar patterns were seen without reaching significance. CONCLUSIONS In NMOSD-AQP4-Ab smoking associates with worse disability not through an increased risk of relapses but through poor relapse recovery. As in MS, smoking cessation should be encouraged in NMOSD-AQP4-Ab.
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Affiliation(s)
- Silvia Messina
- Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, University of Oxford, Oxford, UK; Department of Clinical Neurology, John Radcliffe Hospital, Oxford University Hospitals Trust, Oxford, UK. https://twitter.com/silvia06
| | - Romina Mariano
- Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, University of Oxford, Oxford, UK
| | - Ruth Geraldes
- Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, University of Oxford, Oxford, UK; Department of Clinical Neurology, John Radcliffe Hospital, Oxford University Hospitals Trust, Oxford, UK
| | - Su-Hyun Kim
- Department of Neurology, Research Institute and Hospital of National Cancer, Goyang, Korea
| | - Chanjira Satukijcha
- Division of Neurology, Department of Medicine, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, 10700, Thailand; Bangkok Hospital Headquarters, BDMS, Bangkok, 10310, Thailand
| | | | - Yi Yi Chua
- Department of Neurology, University of Piemonte Orientale, Novara, Italy; Oxford Medical School, University of Oxford, Oxford, UK
| | - James Taylor
- Department of Neurology, University of Piemonte Orientale, Novara, Italy; Oxford Medical School, University of Oxford, Oxford, UK
| | - Naveen George
- Department of Neurology, University of Piemonte Orientale, Novara, Italy; Oxford Medical School, University of Oxford, Oxford, UK
| | - Ana Cavey
- Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, University of Oxford, Oxford, UK; Department of Clinical Neurology, John Radcliffe Hospital, Oxford University Hospitals Trust, Oxford, UK
| | - Alejandro Rubio Diaz
- Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, University of Oxford, Oxford, UK
| | - Sandra Reeve
- Department of Clinical Neurology, John Radcliffe Hospital, Oxford University Hospitals Trust, Oxford, UK
| | - Rosie Everett
- Department of Clinical Neurology, John Radcliffe Hospital, Oxford University Hospitals Trust, Oxford, UK
| | - Gabriele De Luca
- Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, University of Oxford, Oxford, UK; Department of Clinical Neurology, John Radcliffe Hospital, Oxford University Hospitals Trust, Oxford, UK
| | - Maria Isabel Leite
- Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, University of Oxford, Oxford, UK; Department of Clinical Neurology, John Radcliffe Hospital, Oxford University Hospitals Trust, Oxford, UK
| | - Ho Jin Kim
- Department of Neurology, Research Institute and Hospital of National Cancer, Goyang, Korea
| | - Jacqueline Palace
- Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, University of Oxford, Oxford, UK; Department of Clinical Neurology, John Radcliffe Hospital, Oxford University Hospitals Trust, Oxford, UK.
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32
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Herpesvirus Antibodies, Vitamin D and Short-Chain Fatty Acids: Their Correlation with Cell Subsets in Multiple Sclerosis Patients and Healthy Controls. Cells 2021; 10:cells10010119. [PMID: 33435197 PMCID: PMC7826528 DOI: 10.3390/cells10010119] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 12/31/2020] [Accepted: 01/06/2021] [Indexed: 02/06/2023] Open
Abstract
Although the etiology of multiple sclerosis (MS) is still unknown, it is commonly accepted that environmental factors could contribute to the disease. The objective of this study was to analyze the humoral response to Epstein-Barr virus, human herpesvirus 6A/B and cytomegalovirus, and the levels of 25-hydroxyvitamin D (25(OH)D) and the three main short-chain fatty acids (SCFA), propionate (PA), butyrate (BA) and acetate (AA), in MS patients and healthy controls (HC) to understand how they could contribute to the pathogenesis of the disease. With this purpose, we analyzed the correlations among them and with different clinical variables and a wide panel of cell subsets. We found statistically significant differences for most of the environmental factors analyzed when we compared MS patients and HC, supporting their possible involvement in the disease. The strongest correlations with the clinical variables and the cell subsets analyzed were found for 25(OH)D and SCFAs levels. A correlation was also found between 25(OH)D and PA/AA ratio, and the interaction between these factors negatively correlated with interleukin 17 (IL-17)-producing CD4+ and CD8+ T cells in untreated MS patients. Therapies that simultaneously increase vitamin D levels and modify the proportion of SCFA could be evaluated in the future.
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Scharf P, da Rocha GHO, Sandri S, Heluany CS, Pedreira Filho WR, Farsky SHP. Immunotoxic mechanisms of cigarette smoke and heat-not-burn tobacco vapor on Jurkat T cell functions. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 268:115863. [PMID: 33126161 DOI: 10.1016/j.envpol.2020.115863] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 09/29/2020] [Accepted: 10/14/2020] [Indexed: 06/11/2023]
Abstract
Cigarette smoke (CS) affects immune functions, leading to severe outcomes in smokers. Robust evidence addresses the immunotoxic effects of combustible tobacco products. As heat-not-burn tobacco products (HNBT) vaporize lower levels of combustible products, we here compared the effects of cigarette smoke (CS) and HNBT vapor on Jurkat T cells. Cells were exposed to air, conventional cigarettes or heatsticks of HNBT for 30 min and were stimulated or not with phorbol myristate acetate (PMA). Cell viability, proliferation, reactive oxygen species (ROS) production, 8-OHdG, MAP-kinases and nuclear factor κB (NFκB) activation and metallothionein expression (MTs) were assessed by flow cytometry; nitric oxide (NO) and cytokine levels were measured by Griess reaction and ELISA, respectively. Levels of metals in the exposure chambers were quantified by inductively coupled plasma mass spectrometry. MT expressions were quantified by immunohistochemistry in the lungs and liver of C57Bl/6 mice exposed to CS, HNBT or air (1 h, twice a day for five days: via inhalation). While both CS and HBNT exposures increased cell death, CS led to a higher number of necrotic cells, increased the production of ROS, NO, inflammatory cytokines and MTs when compared to HNBT-exposed cells, and led to a higher expression of MTs in mice. CS released higher amounts of metals. CS and HNBT exposures decreased PMA-induced interleukin-2 (IL-2) secretion and impaired Jurkat proliferation, effects also seen in cells exposed to nicotine. Although HNBT vapor does not activate T cells as CS does, exposure to both HNBT and CS suppressed proliferation and IL-2 release, a pivotal cytokine involved with T cell proliferation and tolerance, and this effect may be related to nicotine content in both products.
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Affiliation(s)
- Pablo Scharf
- Department of Clinical & Toxicological Analyses, School of Pharmaceutical Sciences, University of Sao Paulo, SP, Brazil
| | - Gustavo H O da Rocha
- Department of Clinical & Toxicological Analyses, School of Pharmaceutical Sciences, University of Sao Paulo, SP, Brazil
| | - Silvana Sandri
- Department of Clinical & Toxicological Analyses, School of Pharmaceutical Sciences, University of Sao Paulo, SP, Brazil
| | - Cintia S Heluany
- Department of Clinical & Toxicological Analyses, School of Pharmaceutical Sciences, University of Sao Paulo, SP, Brazil
| | - Walter R Pedreira Filho
- Fundação Jorge Duprat Figueiredo de Segurança e Medicina do Trabalho, Ministério do Trabalho e Previdência Social, Sao Paulo, SP, Brazil
| | - Sandra H P Farsky
- Department of Clinical & Toxicological Analyses, School of Pharmaceutical Sciences, University of Sao Paulo, SP, Brazil.
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Liu Y, Yuan X, Chen K, Zhou F, Yang H, Yang H, Qi Y, Kong J, Sun W, Gao S. Clinical significance and prognostic value of Porphyromonas gingivalis infection in lung cancer. Transl Oncol 2020; 14:100972. [PMID: 33279803 PMCID: PMC7718477 DOI: 10.1016/j.tranon.2020.100972] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 11/15/2020] [Accepted: 11/20/2020] [Indexed: 02/07/2023] Open
Abstract
A variety of pathogenic microorganisms can promote the occurrence and development of malignant tumors by colonizing in the body. It has been shown that Porphyromonas gingivalis (P. gingivalis) can be colonized for a long time in upper gastrointestinal tumors and is closely related to the occurrence and development of esophageal cancer in previous studies of our team. Because the esophagus and trachea are closely adjacent and P. gingivalis can instantly enter and colonize in cells, we speculate that P. gingivalis may be colonized in lung cancer cells through oral or blood, promoting the malignant progression of lung cancer. In this study, we investigated P. gingivalis infection in lung carcinoma tissues and adjacent lung tissues, and found that the colonization rate of P. gingivalis in carcinoma tissues was significantly higher than that in adjacent lung tissues. Therefore, we propose that the microenvironment of cancer cells is more conducive to the survival of P. gingivalis. Then, we analyzed the correlation between P. gingivalis infection and clinicopathological features and survival prognosis of patients with lung cancer. It was found that P. gingivalis infection was closely related to smoking, drinking, lymph node metastasis and clinical stage. Moreover, the survival rate and median survival time of patients with P. gingivalis infection were significantly shortened. Therefore, we put forward the view that long term smoking and drinking will cause a bad oral environment, increasing the risk of P. gingivalis infection, then P. gingivalis infection will promote the malignant progression of lung cancer.
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Affiliation(s)
- Yiwen Liu
- School of Information Engineering, Henan University of Science and Technology, Luoyang 471023, China; Henan Key Laboratory of Cancer Epigenetics, Cancer Institute, the First Affiliated Hospital, and College of Clinical Medicine of Henan University of Science and Technology, Luoyang 471003, China
| | - Xiang Yuan
- Henan Key Laboratory of Cancer Epigenetics, Cancer Institute, the First Affiliated Hospital, and College of Clinical Medicine of Henan University of Science and Technology, Luoyang 471003, China
| | - Kuisheng Chen
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Fuyou Zhou
- Department of Thoracic Surgery, Department of Pathology, Anyang Tumor Hospital, Anyang 455000, China
| | - Haijun Yang
- Department of Thoracic Surgery, Department of Pathology, Anyang Tumor Hospital, Anyang 455000, China
| | - Hong Yang
- School of PE, Henan University of Science and Technology, Luoyang 471023, China
| | - Yijun Qi
- Henan Key Laboratory of Cancer Epigenetics, Cancer Institute, the First Affiliated Hospital, and College of Clinical Medicine of Henan University of Science and Technology, Luoyang 471003, China
| | - Jinyu Kong
- Henan Key Laboratory of Cancer Epigenetics, Cancer Institute, the First Affiliated Hospital, and College of Clinical Medicine of Henan University of Science and Technology, Luoyang 471003, China
| | - Wei Sun
- Henan Key Laboratory of Cancer Epigenetics, Cancer Institute, the First Affiliated Hospital, and College of Clinical Medicine of Henan University of Science and Technology, Luoyang 471003, China
| | - Shegan Gao
- School of Information Engineering, Henan University of Science and Technology, Luoyang 471023, China; Henan Key Laboratory of Cancer Epigenetics, Cancer Institute, the First Affiliated Hospital, and College of Clinical Medicine of Henan University of Science and Technology, Luoyang 471003, China.
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Meng N, Dong Y, Huo T, Song M, Jiang X, Xiao Y, Lv P. Past Exposure to Cigarette Smoke Aggravates Cognitive Impairment in a Rat Model of Vascular Dementia via Neuroinflammation. Cell Mol Neurobiol 2020; 42:1021-1034. [PMID: 33156450 DOI: 10.1007/s10571-020-00992-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 10/28/2020] [Indexed: 12/11/2022]
Abstract
Smoking is a risk factor for dementia. Cognitive function can be partially restored after quitting smoking, but still lower than never smoked group. The underlying mechanisms still remain unclear. The effects of smoking cessation combined with cerebral chronic hypoperfusion (CCH) on cognitive function have never been described. Here, we established a cigarette smoking cessation model, a CCH model, and a cigarette smoking cessation plus CCH model. We investigated cognitive function in these models and the mechanisms of the neuroinflammation, nucleotide-binding oligomerization domain-like receptor family pyrin domain-containing 3(NLRP3)/cysteine aspartate-specific proteinase (caspase-1)/interleukin- 1β (IL-1β) pathway, and eucaryotic initiation factor 2α (eIF2α) /autophagy pathway. We used morris water maze (MWM) and novel object recognition (NOR) test to evaluate cognitive function in rats. Nissl staining was performed to observe cell morphology in the hippocampal CA1 area. A neuroinflammatory marker (glial fibrillary acidic protein, GFAP) was assessed by Western blot analysis and immunohistochemistry staining. IL-1β levels were detected by ELISA. The protein levels of NLRP3/caspase-1/ IL-1β and eIF2α/autophagy pathway were evaluated by Western blot analysis. LC3 was assessed by immunofluorescence staining. CCH can affect cognitive function by influencing neuroinflammation, NLRP3/caspase-1/IL-1β pathway, and eIF2α/autophagy pathway. Past exposure to cigarette smoke can also affect cognitive function by influencing neuroinflammation and NLRP3/caspase-1/IL-1β pathway, which may be induced by smoking and may not be alleviated after smoking cessation. Past exposure to cigarette smoke does not influence autophagy, which may be increased by smoking and then decrease to normal levels after smoking cessation. Past exposure to smoking can further aggravate cognitive impairment and neuroinflammation in VaD animals: cognitive impairment induced by CCH via neuroinflammation, NLRP3/caspase-1/IL-1β, and eIF2α/autophagy pathway and cognitive impairment induced by past exposure to cigarette smoke via neuroinflammation and NLRP3/caspase-1/IL-1β pathway. The combined group had the worst cognitive impairment because of harmful reasons.
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Affiliation(s)
- Nan Meng
- Department of Neurology, Hebei Medical University, No. 361 Zhongshan East Road, Changan District, Shijiazhuang, 050017, Hebei Province, People's Republic of China.,Department of Neurology, Hebei General Hospital, No. 348 Heping West Road, Xinhua District, Shijiazhuang, 050051, Hebei Province, People's Republic of China
| | - Yanhong Dong
- Department of Neurology, Hebei General Hospital, No. 348 Heping West Road, Xinhua District, Shijiazhuang, 050051, Hebei Province, People's Republic of China
| | - Tiantian Huo
- Department of Neurology, Hebei General Hospital, No. 348 Heping West Road, Xinhua District, Shijiazhuang, 050051, Hebei Province, People's Republic of China
| | - Meiyi Song
- Department of Neurology, Hebei Medical University, No. 361 Zhongshan East Road, Changan District, Shijiazhuang, 050017, Hebei Province, People's Republic of China
| | - Xin Jiang
- Department of Neurology, Hebei General Hospital, No. 348 Heping West Road, Xinhua District, Shijiazhuang, 050051, Hebei Province, People's Republic of China
| | - Yining Xiao
- Department of Neurology, Hebei General Hospital, No. 348 Heping West Road, Xinhua District, Shijiazhuang, 050051, Hebei Province, People's Republic of China
| | - Peiyuan Lv
- Department of Neurology, Hebei Medical University, No. 361 Zhongshan East Road, Changan District, Shijiazhuang, 050017, Hebei Province, People's Republic of China. .,Department of Neurology, Hebei General Hospital, No. 348 Heping West Road, Xinhua District, Shijiazhuang, 050051, Hebei Province, People's Republic of China.
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Nishanth K, Tariq E, Nzvere FP, Miqdad M, Cancarevic I. Role of Smoking in the Pathogenesis of Multiple Sclerosis: A Review Article. Cureus 2020; 12:e9564. [PMID: 32905534 PMCID: PMC7473606 DOI: 10.7759/cureus.9564] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Multiple sclerosis (MS) is a complex and unpredictable neurological condition. It is the most commonly seen autoimmune disorder. The incidence of disease and its prevalence are growing worldwide. Early identification of the disease and accurate diagnosis is important to prevent further complications and disability. The etiology remains unclear, and it is believed that complex gene-environment interactions play an essential role. Genetic predisposition only describes a portion of the disease risk, whereas lifestyle and environmental factors are significant contributors. Smoking was identified as an important risk factor for MS. The main objectives of this review were to examine the underlying mechanisms of immune dysregulation in the development of MS, explore the association between smoking and MS, and identify other genetic and environmental factors that alter the risk of developing the disease. We searched PubMed for articles relevant to the study topic published between 2000 and 2020 using the search terms “multiple sclerosis,” “cigarette smoking,” “risk factors,” and, “epigenetics.” Studies reveal a marked association between smoking and the risk of MS. Unlike genetic risk factors, many lifestyles and environmental factors can be adjusted, with potential for prevention, particularly for people at the highest risk, such as families of individuals with MS.
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Affiliation(s)
- Katukuri Nishanth
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Ezza Tariq
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA.,Internal Medicine, Nishtar Medical College, Multan, PAK
| | - Farirai P Nzvere
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Mohammed Miqdad
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Ivan Cancarevic
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
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Lorefice L, Destro F, Fenu G, Mallus M, Gessa I, Sechi V, Barracciu MA, Frau J, Coghe G, Carmagnini D, Marrosu MG, Saba L, Cocco E. The impact of modifiable risk factors on lesion burden in patients with early multiple sclerosis. Mult Scler Relat Disord 2020; 39:101886. [PMID: 31869600 DOI: 10.1016/j.msard.2019.101886] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 12/04/2019] [Accepted: 12/07/2019] [Indexed: 11/17/2022]
Abstract
INTRODUCTION Some studies have indicated the importance of considering smoking, vitamin D deficiency and obesity as negative prognostic factors for clinical and MRI outcomes in multiple sclerosis (MS). This study aimed to evaluate the possible effects of these modifiable risk factors on brain MRI lesion burden of patients with early MS, also exploring the influence on initial clinical features. METHODS MS patients were enrolled at diagnosis time and examined for smoking, body mass index (BMI), serum level of lipids and 25(OH) vitamin D. Brain MRIs' were acquired and lesion volume assessed by Jim software. Clinical data (disease course, disease duration, and EDSS score) were also collected. RESULTS 64 patients were enrolled, of these 4 (6.2%) had a primary progressive course. Mean age was 39.8 ± 11.1 years and mean EDSS 1.5 ± 1.1. Forty (62.5%) patients were smokers and 40 (62.5%) were overweight (BMI>25). Insufficient levels of vitamin D (<20 ng/mL) were reported in 36 (56.2%) patients, while 24 (37.5%) patients had an altered lipid profile with total cholesterol >200 mg/dl and LDL >100 mg/dl. No association between early clinical features and modifiable risk factors were reported. Multiple regression analysis showed an association between lesion burden and smoking status (p 0.003), while no association was reported with BMI, altered lipid profile and vitamin D insufficiency. CONCLUSIONS Several risk factors may play a role in evolution of MS. Our results show that smoking status, probably due to chronic vascular and neurotoxic effects of the cigarette components, can affect the brain damage from the early stages of MS. No association was observed with the other explored modifiable risk factors, although an effect due to the small sample size cannot be excluded.
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Affiliation(s)
| | | | - Giuseppe Fenu
- MS Centre, Binaghi Hospital, ATS Sardegna, Cagliari, Italy
| | - Martina Mallus
- MS Centre, Department of Medical Sciences and Public Health, University of Cagliari, Italy
| | - Isabella Gessa
- MS Centre, Binaghi Hospital, ATS Sardegna, Cagliari, Italy
| | - Vincenzo Sechi
- Radiology Unit, Binaghi Hospital, ATS Sardegna, Cagliari, Italy
| | | | - Jessica Frau
- MS Centre, Binaghi Hospital, ATS Sardegna, Cagliari, Italy
| | | | - Daniele Carmagnini
- MS Centre, Department of Medical Sciences and Public Health, University of Cagliari, Italy
| | - Maria Giovanna Marrosu
- MS Centre, Department of Medical Sciences and Public Health, University of Cagliari, Italy
| | - Luca Saba
- Department of Radiology, University of Cagliari, Italy
| | - Eleonora Cocco
- MS Centre, Department of Medical Sciences and Public Health, University of Cagliari, Italy
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38
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Environmental risk factors for multiple sclerosis in Japanese people. Mult Scler Relat Disord 2019; 38:101872. [PMID: 31812038 DOI: 10.1016/j.msard.2019.101872] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 09/11/2019] [Accepted: 11/24/2019] [Indexed: 12/19/2022]
Abstract
BACKGROUND The prevalence of multiple sclerosis (MS) has been increasing worldwide in recent years, especially among females. The same increasing trends are even observed in East Asian countries, where the prevalence of MS is relatively low compared with Northern European ancestries. Whether the environmental risk factors for MS are shared between Asian and North European ancestries, and the types of environmental factors that contribute to the low and recent increase in MS prevalence in Asian countries remain unknown. This study provides the first comprehensive survey of environmental risks for MS in East Asia. METHODS Patients with MS were recruited from the Department of Neurology at Kyushu University Hospital, Japan between 01 April 2017 and 31 March 2018. Healthy controls (HCs) were recruited by public notification. All participants were residents of Kyushu Island and were required to complete medical history and lifestyle questionnaires. Dietary data were collected using a Food Frequency Questionnaire comprising intake of approximately 140 food and beverage items in the past 1 year. One hundred and three patients with MS and 124 healthy controls (HCs) completed the questionnaires. Age at onset and disability score measured by the Kurtzke Expanded Disability Status Scale (EDSS) were obtained from medical records. RESULTS Frequency of obesity (body mass index ≥25 kg/m2) at present time was higher in MS patients than in HCs (19.4% vs. 7.4%, p = 0.009), while body mass index at age 18-20 years did not differ between the two groups. Frequency of current or ex-smokers was higher in MS patients than in HCs (50.5% vs. 22.8%, p < 0.0001) and disability measured by the EDSS was more severe in MS patients with active smoking history than in patients without such history (p = 0.006 after adjusting for sex). Passive smoking after age 16 years was also a risk factor for MS (odds ratio: 1.31, 95% confidence interval: 1.05-1.63, p = 0.015). Longer sunlight exposure in early childhood was a protective factor for MS (odds ratio: 0.65 during summer and 0.71 during winter at age 6-10 years; 0.71 during summer and 0.72 during winter at age 11-15 years). MS patients had earlier age of menarche than HCs (mean: 12.4 years vs. 12.9 years, p = 0.031). Intake of grains was lower in MS patients than in HCs, with intake of rice in particular being significantly lower in MS patients than in HCs (mean: 235.2 g/day vs. 280.6 g/day, p = 0.006). Previously reported foods associated with MS in Northern European ancestries were not replicated in Japanese people. CONCLUSION Smoking and earlier age of menarche are positively associated and sunlight exposure in early childhood is negatively associated with MS in Japanese people as shown in Caucasians. Intake of steamed short-grain white rice, a staple food in Japan, is newly found to be negatively associated with MS in Japanese people. Although the causality is unclear because the participants were prevalent cases, these environmental factors may be involved in the rising prevalence of MS in Japanese females.
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Hagens MHJ, Golla SSV, Janssen B, Vugts DJ, Beaino W, Windhorst AD, O’Brien-Brown J, Kassiou M, Schuit RC, Schwarte LA, de Vries HE, Killestein J, Barkhof F, van Berckel BNM, Lammertsma AA. The P2X 7 receptor tracer [ 11C]SMW139 as an in vivo marker of neuroinflammation in multiple sclerosis: a first-in man study. Eur J Nucl Med Mol Imaging 2019; 47:379-389. [PMID: 31705174 PMCID: PMC6974509 DOI: 10.1007/s00259-019-04550-x] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Accepted: 09/24/2019] [Indexed: 12/21/2022]
Abstract
Purpose The novel PET tracer [11C]SMW139 binds with high affinity to the P2X7 receptor, which is expressed on pro-inflammatory microglia. The purposes of this first in-man study were to characterise pharmacokinetics of [11C]SMW139 in patients with active relapsing remitting multiple sclerosis (RRMS) and healthy controls (HC) and to evaluate its potential to identify in vivo neuroinflammation in RRMS. Methods Five RRMS patients and 5 age-matched HC underwent 90-min dynamic [11C]SMW139 PET scans, with online continuous and manual arterial sampling to generate a metabolite-corrected arterial plasma input function. Tissue time activity curves were fitted to single- and two-tissue compartment models, and the model that provided the best fits was determined using the Akaike information criterion. Results The optimal model for describing [11C]SMW139 kinetics in both RRMS and HC was a reversible two-tissue compartment model with blood volume parameter and with the dissociation rate k4 fixed to the whole-brain value. Exploratory group level comparisons demonstrated an increased volume of distribution (VT) and binding potential (BPND) in RRMS compared with HC in normal appearing brain regions. BPND in MS lesions was decreased compared with non-lesional white matter, and a further decrease was observed in gadolinium-enhancing lesions. In contrast, increased VT was observed in enhancing lesions, possibly resulting from disruption of the blood-brain barrier in active MS lesions. In addition, there was a high correlation between parameters obtained from 60- to 90-min datasets, although analyses using 60-min data led to a slight underestimation in regional VT and BPND values. Conclusions This first in-man study demonstrated that uptake of [11C]SMW139 can be quantified with PET using BPND as a measure for specific binding in healthy controls and RRMS patients. Additional studies are warranted for further clinical evaluation of this novel neuroinflammation tracer. Electronic supplementary material The online version of this article (10.1007/s00259-019-04550-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Marloes H. J. Hagens
- MS Center Amsterdam, Amsterdam Neuroscience, Amsterdam UMC - location VUmc, De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands
- Department of Neurology, Amsterdam Neuroscience, Amsterdam UMC - location VUmc, De Boelelaan 1117, 1081 HV, Amsterdam, The Netherlands
| | - Sandeep S. V. Golla
- Department of Radiology and Nuclear Medicine, Amsterdam Neuroscience, Amsterdam UMC - location VUmc, De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands
| | - Bieneke Janssen
- Department of Radiology and Nuclear Medicine, Amsterdam Neuroscience, Amsterdam UMC - location VUmc, De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands
| | - Danielle J. Vugts
- Department of Radiology and Nuclear Medicine, Amsterdam Neuroscience, Amsterdam UMC - location VUmc, De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands
| | - Wissam Beaino
- Department of Molecular Cell Biology and Immunology, Amsterdam UMC - location VUmc, De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands
| | - Albert D. Windhorst
- Department of Radiology and Nuclear Medicine, Amsterdam Neuroscience, Amsterdam UMC - location VUmc, De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands
| | | | - Michael Kassiou
- School of Chemistry, University of Sydney, Sydney, Australia
| | - Robert C. Schuit
- Department of Radiology and Nuclear Medicine, Amsterdam Neuroscience, Amsterdam UMC - location VUmc, De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands
| | - Lothar A. Schwarte
- Department of Anaesthesiology, Amsterdam UMC - location VUmc, De Boelelaan 1117, 1081 HV, Amsterdam, The Netherlands
| | - Helga E. de Vries
- MS Center Amsterdam, Amsterdam Neuroscience, Amsterdam UMC - location VUmc, De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands
- Department of Molecular Cell Biology and Immunology, Amsterdam UMC - location VUmc, De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands
| | - Joep Killestein
- MS Center Amsterdam, Amsterdam Neuroscience, Amsterdam UMC - location VUmc, De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands
- Department of Neurology, Amsterdam Neuroscience, Amsterdam UMC - location VUmc, De Boelelaan 1117, 1081 HV, Amsterdam, The Netherlands
| | - Frederik Barkhof
- MS Center Amsterdam, Amsterdam Neuroscience, Amsterdam UMC - location VUmc, De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands
- Department of Radiology and Nuclear Medicine, Amsterdam Neuroscience, Amsterdam UMC - location VUmc, De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands
- Institutes of Neurology and Healthcare Engineering, UCL Institute of Neurology, London, UK
| | - Bart N. M. van Berckel
- Department of Radiology and Nuclear Medicine, Amsterdam Neuroscience, Amsterdam UMC - location VUmc, De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands
| | - Adriaan A. Lammertsma
- Department of Radiology and Nuclear Medicine, Amsterdam Neuroscience, Amsterdam UMC - location VUmc, De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands
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Psychiatric Genetics, Epigenetics, and Cellular Models in Coming Years. JOURNAL OF PSYCHIATRY AND BRAIN SCIENCE 2019; 4. [PMID: 31608310 PMCID: PMC6788748 DOI: 10.20900/jpbs.20190012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Psychiatric genetic studies have uncovered hundreds of loci associated with various psychiatric disorders. We take the opportunity to review achievements in the past and provide our view of what is coming in the fields of molecular genetics, epigenetics, and cellular models. We expect that SNP-array and sequencing-based studies of genetic associations will continue to expand, covering more disorders, drug responses, phenotypes, and diverse populations. Epigenetic studies of psychiatric disorders will be another promising field with the growing recognition that environmental factors impact the risk for psychiatric disorders by modulating epigenetic factors. Functional studies of genetic findings will be needed in cellular models to provide important connections between genetic and epigenetic variants and biological phenotypes.
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Aedo G, Miranda M, Chávez MN, Allende ML, Egaña JT. A Reliable Preclinical Model to Study the Impact of Cigarette Smoke in Development and Disease. ACTA ACUST UNITED AC 2019; 80:e78. [PMID: 31058471 DOI: 10.1002/cptx.78] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The World Health Organization has estimated that, worldwide, cigarette smoking has caused more than 100 million deaths in the last century, a number that is expected to increase in the future. Understanding cigarette smoke toxicity is key for research and development of proper public health policies. The current challenge is to establish a reliable preclinical model to evaluate the effects of cigarette smoke. In this work, we describe a simple method that allows for quantifying the toxic effects of cigarette smoke using zebrafish. Here, viability of larvae and adult fish, as well as the effects of cigarette smoke extracts on vascular development and tissue regeneration, can be easily assayed. © 2019 by John Wiley & Sons, Inc.
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Affiliation(s)
- Geraldine Aedo
- Institute for Biological and Medical Engineering, Schools of Engineering, Medicine and Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile.,FONDAP Advanced Center for Chronic Disease, Center for Molecular Studies of the Cell, Facultad de Ciencias Químicas y Farmacéuticas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Miguel Miranda
- Institute for Biological and Medical Engineering, Schools of Engineering, Medicine and Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile.,FONDAP Center for Genome Regulation, Facultad de Ciencias, Universidad de Chile, Santiago, Chile.,Facultad de Medicina Veterinaria y Agronomía, Universidad de las Américas, Santiago, Chile
| | - Myra N Chávez
- FONDAP Advanced Center for Chronic Disease, Center for Molecular Studies of the Cell, Facultad de Ciencias Químicas y Farmacéuticas, Facultad de Medicina, Universidad de Chile, Santiago, Chile.,FONDAP Center for Genome Regulation, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - Miguel L Allende
- FONDAP Center for Genome Regulation, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - José T Egaña
- Institute for Biological and Medical Engineering, Schools of Engineering, Medicine and Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile
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Enzmann G, Adelfio R, Godel A, Haghayegh Jahromi N, Tietz S, Burgener SS, Deutsch U, Wekerle H, Benarafa C, Engelhardt B. The Genetic Background of Mice Influences the Effects of Cigarette Smoke on Onset and Severity of Experimental Autoimmune Encephalomyelitis. Int J Mol Sci 2019; 20:E1433. [PMID: 30901861 PMCID: PMC6472182 DOI: 10.3390/ijms20061433] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 03/15/2019] [Accepted: 03/19/2019] [Indexed: 11/16/2022] Open
Abstract
Multiple sclerosis (MS) is the most common inflammatory disorder of the central nervous system (CNS) in young adults leading to severe disability. Besides genetic traits, environmental factors contribute to MS pathogenesis. Cigarette smoking increases the risk of MS in an HLA-dependent fashion, but the underlying mechanisms remain unknown. Here, we explored the effect of cigarette smoke exposure on spontaneous and induced models of experimental autoimmune encephalomyelitis (EAE) by evaluating clinical disease and, when relevant, blood leukocytes and histopathology. In the relapsing-remitting (RR) transgenic model in SJL/J mice, we observed very low incidence in both smoke-exposed and control groups. In the optico-spinal encephalomyelitis (OSE) double transgenic model in C57BL/6 mice, the early onset of EAE prevented a meaningful evaluation of the effects of cigarette smoke. In EAE models induced by immunization, daily exposure to cigarette smoke caused a delayed onset of EAE followed by a protracted disease course in SJL/J mice. In contrast, cigarette smoke exposure ameliorated the EAE clinical score in C57BL/6J mice. Our exploratory studies therefore show that genetic background influences the effects of cigarette smoke on autoimmune neuroinflammation. Importantly, our findings expose the challenge of identifying an animal model for studying the influence of cigarette smoke in MS.
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Affiliation(s)
- Gaby Enzmann
- Theodor Kocher Institute, University of Bern, Freiestrasse 1, 3012 Bern, Switzerland.
| | - Roberto Adelfio
- Theodor Kocher Institute, University of Bern, Freiestrasse 1, 3012 Bern, Switzerland.
| | - Aurélie Godel
- Theodor Kocher Institute, University of Bern, Freiestrasse 1, 3012 Bern, Switzerland.
- Institute of Virology and Immunology, Sensemattstrasse 293, 3147 Mittelhäusern, Switzerland.
- Department of Infectious Diseases and Pathobiology, Vetsuisse Faculty, University of Bern, 3012 Bern, Switzerland.
| | | | - Silvia Tietz
- Theodor Kocher Institute, University of Bern, Freiestrasse 1, 3012 Bern, Switzerland.
| | - Sabrina S Burgener
- Institute of Virology and Immunology, Sensemattstrasse 293, 3147 Mittelhäusern, Switzerland.
- Department of Infectious Diseases and Pathobiology, Vetsuisse Faculty, University of Bern, 3012 Bern, Switzerland.
| | - Urban Deutsch
- Theodor Kocher Institute, University of Bern, Freiestrasse 1, 3012 Bern, Switzerland.
| | - Hartmut Wekerle
- Max-Planck-Institute for Neurobiology, Am Klopferspitz 18, 82152 Martinsried, Germany.
| | - Charaf Benarafa
- Institute of Virology and Immunology, Sensemattstrasse 293, 3147 Mittelhäusern, Switzerland.
- Department of Infectious Diseases and Pathobiology, Vetsuisse Faculty, University of Bern, 3012 Bern, Switzerland.
| | - Britta Engelhardt
- Theodor Kocher Institute, University of Bern, Freiestrasse 1, 3012 Bern, Switzerland.
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