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Serra M, Simola N, Pollack AE, Costa G. Brain dysfunctions and neurotoxicity induced by psychostimulants in experimental models and humans: an overview of recent findings. Neural Regen Res 2024; 19:1908-1918. [PMID: 38227515 DOI: 10.4103/1673-5374.390971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 11/10/2023] [Indexed: 01/17/2024] Open
Abstract
Preclinical and clinical studies indicate that psychostimulants, in addition to having abuse potential, may elicit brain dysfunctions and/or neurotoxic effects. Central toxicity induced by psychostimulants may pose serious health risks since the recreational use of these substances is on the rise among young people and adults. The present review provides an overview of recent research, conducted between 2018 and 2023, focusing on brain dysfunctions and neurotoxic effects elicited in experimental models and humans by amphetamine, cocaine, methamphetamine, 3,4-methylenedioxymethamphetamine, methylphenidate, caffeine, and nicotine. Detailed elucidation of factors and mechanisms that underlie psychostimulant-induced brain dysfunction and neurotoxicity is crucial for understanding the acute and enduring noxious brain effects that may occur in individuals who use psychostimulants for recreational and/or therapeutic purposes.
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Affiliation(s)
- Marcello Serra
- Department of Biomedical Sciences, Section of Neuroscience, University of Cagliari, Cagliari, Italy
| | - Nicola Simola
- Department of Biomedical Sciences, Section of Neuroscience, University of Cagliari, Cagliari, Italy
| | - Alexia E Pollack
- Department of Biology, University of Massachusetts-Boston, Boston, MA, USA
| | - Giulia Costa
- Department of Biomedical Sciences, Section of Neuroscience, University of Cagliari, Cagliari, Italy
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2
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Tan Q, Xu X, Zhou H, Jia J, Jia Y, Tu H, Zhou D, Wu X. A multi-ancestry cerebral cortex transcriptome-wide association study identifies genes associated with smoking behaviors. Mol Psychiatry 2024:10.1038/s41380-024-02605-6. [PMID: 38816585 DOI: 10.1038/s41380-024-02605-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 04/30/2024] [Accepted: 05/09/2024] [Indexed: 06/01/2024]
Abstract
Transcriptome-wide association studies (TWAS) have provided valuable insight in identifying genes that may impact cigarette smoking. Most of previous studies, however, mainly focused on European ancestry. Limited TWAS studies have been conducted across multiple ancestries to explore genes that may impact smoking behaviors. In this study, we used cis-eQTL data of cerebral cortex from multiple ancestries in MetaBrain, including European, East Asian, and African samples, as reference panels to perform multi-ancestry TWAS analyses on ancestry-matched GWASs of four smoking behaviors including smoking initiation, smoking cessation, age of smoking initiation, and number of cigarettes per day in GWAS & Sequencing Consortium of Alcohol and Nicotine use (GSCAN). Multiple-ancestry fine-mapping approach was conducted to identify credible gene sets associated with these four traits. Enrichment and module network analyses were further performed to explore the potential roles of these identified gene sets. A total of 719 unique genes were identified to be associated with at least one of the four smoking traits across ancestries. Among those, 249 genes were further prioritized as putative causal genes in multiple ancestry-based fine-mapping approach. Several well-known smoking-related genes, including PSMA4, IREB2, and CHRNA3, showed high confidence across ancestries. Some novel genes, e.g., TSPAN3 and ANK2, were also identified in the credible sets. The enrichment analysis identified a series of critical pathways related to smoking such as synaptic transmission and glutamate receptor activity. Leveraging the power of the latest multi-ancestry GWAS and eQTL data sources, this study revealed hundreds of genes and relevant biological processes related to smoking behaviors. These findings provide new insights for future functional studies on smoking behaviors.
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Affiliation(s)
- Qilong Tan
- Department of Big Data in Health Science School of Public Health, Center of Clinical Big Data and Analytics of The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
- The Key Laboratory of Intelligent Preventive Medicine of Zhejiang Province, Hangzhou, 310058, China
| | - Xiaohang Xu
- Department of Big Data in Health Science School of Public Health, Center of Clinical Big Data and Analytics of The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
- The Key Laboratory of Intelligent Preventive Medicine of Zhejiang Province, Hangzhou, 310058, China
| | - Hanyi Zhou
- Department of Big Data in Health Science School of Public Health, Center of Clinical Big Data and Analytics of The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
- The Key Laboratory of Intelligent Preventive Medicine of Zhejiang Province, Hangzhou, 310058, China
| | - Junlin Jia
- Department of Big Data in Health Science School of Public Health, Center of Clinical Big Data and Analytics of The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
- The Key Laboratory of Intelligent Preventive Medicine of Zhejiang Province, Hangzhou, 310058, China
| | - Yubing Jia
- Department of Big Data in Health Science School of Public Health, Center of Clinical Big Data and Analytics of The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
- The Key Laboratory of Intelligent Preventive Medicine of Zhejiang Province, Hangzhou, 310058, China
| | - Huakang Tu
- Department of Big Data in Health Science School of Public Health, Center of Clinical Big Data and Analytics of The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
- The Key Laboratory of Intelligent Preventive Medicine of Zhejiang Province, Hangzhou, 310058, China
- National Institute for Data Science in Health and Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Dan Zhou
- Department of Big Data in Health Science School of Public Health, Center of Clinical Big Data and Analytics of The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
- The Key Laboratory of Intelligent Preventive Medicine of Zhejiang Province, Hangzhou, 310058, China
- Cancer Center, Zhejiang University, Hangzhou, 310058, China
| | - Xifeng Wu
- Department of Big Data in Health Science School of Public Health, Center of Clinical Big Data and Analytics of The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China.
- The Key Laboratory of Intelligent Preventive Medicine of Zhejiang Province, Hangzhou, 310058, China.
- School of Medicine and Health Science, George Washington University, Washington, DC, USA.
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Zhou X, Ma S, Xu Y, Sun C, Liao J, Song M, Li G, Yuchen L, Chen P, Hu Y, Wang Y, Yu B. Nicotine promotes Staphylococcus aureus-induced osteomyelitis by activating the Nrf2/Slc7a11 signaling axis. Int Immunopharmacol 2024; 135:112223. [PMID: 38772295 DOI: 10.1016/j.intimp.2024.112223] [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: 12/13/2023] [Revised: 05/03/2024] [Accepted: 05/05/2024] [Indexed: 05/23/2024]
Abstract
Although smoking is a significant risk factor for osteomyelitis, there is limited experimental evidence that nicotine, a key tobacco constituent, is associated with this condition, leaving its mechanistic implications uncharacterized. This study revealed that nicotine promotes Staphylococcus aureus-induced osteomyelitis by increasing Nrf2 and Slc7a11 expression in vivo and in vitro. Inhibition of Slc7a11 using Erastin augmented bacterial phagocytosis/killing capabilities and fortified antimicrobial responses in an osteomyelitis model. Moreover, untargeted metabolomic analysis demonstrated that Erastin mitigated the effects of nicotine on S. aureus-induced osteomyelitis by altering glutamate/glutathione metabolism. These findings suggest that nicotine aggravates S. aureus-induced osteomyelitis by activating the Nrf2/Slc7a11 signaling pathway and that Slc7a11 inhibition can counteract the detrimental health effects of nicotine.
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Affiliation(s)
- Xuyou Zhou
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China; Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Sushuang Ma
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China; Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China; Department of Orthopaedics, The Fifth Affiliated Hospital, Southerm Medical University, Guangzhou, China
| | - Yuan Xu
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China; Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Chongkai Sun
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China; Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Juncheng Liao
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China; Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Mingrui Song
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China; Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Guanzhi Li
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China; Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Liu Yuchen
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China; Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Peng Chen
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China; Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China; Department of Orthopedics, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), Haikou, China
| | - Yanjun Hu
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China; Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yutian Wang
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China; Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China.
| | - Bin Yu
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China; Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China.
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Zhong Z, Wang X, Guo J, Li X, Han Y. Comparison of Clinical Characteristics and Outcomes in Intensive Care Units Between Patients with Coronavirus Disease 2019 (COVID-19) and Patients with Influenza: A Systematic Review and Meta-Analysis. J Intensive Care Med 2024:8850666241232888. [PMID: 38404127 DOI: 10.1177/08850666241232888] [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: 02/27/2024]
Abstract
BACKGROUND Severe infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) or influenza virus can cause patients to be admitted to intensive care units (ICUs). It is necessary to understand the differences in clinical characteristics and outcomes between these two types of critically ill patients. METHODS We searched Embase, PubMed, and Web of Science for articles and performed a meta-analysis using Stata 14.0 with a random-effects model. This paper was written in strict accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. RESULTS Thirty-five articles involving 131,692 ICU patients with coronavirus disease 2019 (COVID-19) and 30,286 ICU patients with influenza were included in our meta-analysis. Compared with influenza patients, COVID-19 patients were more likely to be male (odds ratio (OR) = 1.75, 95% CI: 1.54-1.99) and older (standardized mean difference (SMD) = 0.16, 95% CI: 0.03-0.29). In terms of laboratory test results, COVID-19 patients had higher lymphocyte (SMD = 0.38, 95% CI: 0.17-0.59) and platelet counts (SMD = 0.52, 95% CI: 0.29-0.75) but lower creatinine (SMD = -0.29, 95% CI: -0.55-0.03) and procalcitonin levels (SMD = -0.78, 95% CI: -1.11-0.46). Diabetes (SMD = 1.27, 95% CI: 1.08-1.48) and hypertension (SMD = 1.30, 95% CI: 1.05-1.60) were more prevalent in COVID-19 patients, while influenza patients were more likely to have cancer (OR = 0.52, 95% CI: 0.44-0.62), cirrhosis (OR = 0.52, 95% CI: 0.44-0.62), immunodepression (OR = 0.38, 95% CI: 0.25-0.58), and chronic pulmonary diseases (OR = 0.35, 95% CI: 0.24-0.52). We also found that patients with COVID-19 had longer ICU stays (SMD = 0.20, 95% CI: 0.05-0.34), were more likely to develop acute respiratory distress syndrome (OR = 4.90, 95% CI: 2.77-8.64), and had higher mortality (OR = 1.35, 95% CI: 1.17-1.55). CONCLUSIONS There are some differences in the basic characteristics, comorbidities, laboratory test results and complications between ICU patients with COVID-19 and ICU patients with influenza. Critically ill patients with COVID-19 often require more medical resources and have worse clinical outcomes. PROSPERO Registration Number: CRD42023452238.
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Affiliation(s)
- Zhuan Zhong
- Department of Orthopaedics, The Second Hospital of Jilin University, Changchun, Jilin Province 130000, China
| | - Xin Wang
- Infection Management Department of Hospital, China-Japan Union Hospital of Jilin University, Changchun, Jilin Province 130000, China
| | - Jia Guo
- Department of Respiratory, China-Japan Union Hospital of Jilin University, Changchun, Jilin Province 130000, China
| | - Xingzhao Li
- Department of Ultrasound, China-Japan Union Hospital of Jilin University, Changchun, Jilin Province 130000, China
| | - Yingying Han
- Department of Neurology, China-Japan Union Hospital of Jilin University, Changchun, Jilin Province 130000, China
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Wijaya CS, Xu S. Reevaluating Golgi fragmentation and its implications in wound repair. CELL REGENERATION (LONDON, ENGLAND) 2024; 13:4. [PMID: 38349608 PMCID: PMC10864233 DOI: 10.1186/s13619-024-00187-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 01/23/2024] [Indexed: 02/16/2024]
Abstract
The Golgi Apparatus (GA) is pivotal in vesicle sorting and protein modifications within cells. Traditionally, the GA has been described as a perinuclear organelle consisting of stacked cisternae forming a ribbon-like structure. Changes in the stacked structure or the canonical perinuclear localization of the GA have been referred to as "GA fragmentation", a term widely employed in the literature to describe changes in GA morphology and distribution. However, the precise meaning and function of GA fragmentation remain intricate. This review aims to demystify this enigmatic phenomenon, dissecting the diverse morphological changes observed and their potential contributions to cellular wound repair and regeneration. Through a comprehensive analysis of current research, we hope to pave the way for future advancements in GA research and their important role in physiological and pathological conditions.
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Affiliation(s)
- Chandra Sugiarto Wijaya
- Department of Burns and Wound Repair and Center for Stem Cell and Regenerative Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
| | - Suhong Xu
- Department of Burns and Wound Repair and Center for Stem Cell and Regenerative Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China.
- International Biomedicine-X Research Center of the Second Affiliated Hospital, Zhejiang University School of Medicine and the Zhejiang University-University of Edinburgh Institute, 718 East Haizhou Rd., Haining, Zhejiang, 314400, China.
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Wang F, Li H, Kong T, Shan L, Guo J, Wu Y, Luo X, Satyanarayanan SK, Su K, Liu Y. Association of cigarette smoking with cerebrospinal fluid biomarkers of insulin sensitivity and neurodegeneration. Brain Behav 2024; 14:e3432. [PMID: 38361318 PMCID: PMC10869886 DOI: 10.1002/brb3.3432] [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: 10/25/2023] [Revised: 01/25/2024] [Accepted: 01/27/2024] [Indexed: 02/17/2024] Open
Abstract
INTRODUCTION Cigarette smoking increases both the risk for insulin resistance and amyloid-β (Aβ) aggregation, and impaired brain insulin/insulin-like growth factor 1 (IGF1) signaling might increase risk factors for Alzheimer's disease (AD). We aimed to investigate the association among cerebrospinal fluid (CSF) insulin sensitivity/IGF1, glucose/lactate, and Aβ42 and further explore whether insulin sensitivity contributed to the risk for AD in active smokers. METHODS In this cross-sectional study, levels of insulin, IGF1, and lactate/glucose of 75 active smokers and 78 nonsmokers in CSF were measured. Three polymorphisms regulating IGF1 were genotyped. Analysis of variance was used to compare differences of variables between groups. Partial correlation was performed to test the relationship between CSF biomarkers and smoking status. General linear models were applied to test the interaction of the effect of single nucleotide polymorphisms and cigarette smoking on CSF IGF1 levels. RESULTS In the CSF from active smokers, IGF1 and lactate levels were significantly lower (p = .016 and p = .010, respectively), whereas Aβ42 (derived from our earlier research) and insulin levels were significantly higher (p < .001 and p = .022, respectively) as compared to the CSF from nonsmokers. The AG + GG genotype of rs6218 in active smokers had a significant effect on lower CSF IGF1 levels (p = .004) and lower CSF insulin levels in nonsmokers (p = .016). CONCLUSIONS Cigarette smoking as the "at-risk" factor for AD might be due to lower cerebral insulin sensitivity in CSF, and the subjects with rs6218G allele seem to be more susceptible to the neurodegenerative risks for cigarette smoking.
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Grants
- QML20212003 "Qingmiao" program of Beijing Municipal Hospital Management Center
- LY202106 Youth Scientific Research Foundation of Beijing Huilongguan Hospital
- 2017Q007 Tianshan Youth Project-Outstanding Youth Science and Technology Talents of Xinjiang
- 2022J0112 Natural Science Foundation of Fujian Province
- ANHRF109-31 The 10th Inner Mongolia Autonomous Region 'Prairie excellence' Project, the An Nan Hospital, China Medical University, Tainan, Taiwan
- 110-13 The 10th Inner Mongolia Autonomous Region 'Prairie excellence' Project, the An Nan Hospital, China Medical University, Tainan, Taiwan
- 110-26 The 10th Inner Mongolia Autonomous Region 'Prairie excellence' Project, the An Nan Hospital, China Medical University, Tainan, Taiwan
- 2017E0267 The technology support project of xinjiang
- 7152074 Beijing Natural Science Foundation
- 2017D01C245 Natural Science Foundation of Xinjiang Province
- 2018D01C228 Natural Science Foundation of Xinjiang Province
- 2019D01C229 Natural Science Foundation of Xinjiang Province
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Affiliation(s)
- Fan Wang
- Beijing Huilongguan HospitalPeking UniversityBeijingChina
| | - Hui Li
- Department of Biomedical EngineeringCollege of Future TechnologyPeking UniversityBeijingChina
| | - Tiantian Kong
- Xinjiang Key Laboratory of Neurological Disorder Researchthe Second Affiliated Hospital of Xinjiang Medical UniversityUrumqiChina
| | - Ligang Shan
- Department of Anesthesiologythe Second Affiliated Hospital of Xiamen Medical CollegeXiamenChina
| | - Jiajia Guo
- Medical SectionThe Third Hospital of BaoGang GroupBaotouChina
- The Affiliated Hospital of Inner Mongolia Medical UniversityHuhhotChina
| | - Yan Wu
- Beijing Huilongguan HospitalPeking UniversityBeijingChina
| | - Xingguang Luo
- Department of PsychiatryYale University School of MedicineNew HavenUSA
| | - Senthil Kumaran Satyanarayanan
- Department of Psychiatry & Mind‐Body Interface Laboratory (MBI‐Lab)China Medical University HospitalTaichungTaiwan
- College of MedicineChina Medical UniversityTaichungTaiwan
| | - Kuan‐Pin Su
- Department of Psychiatry & Mind‐Body Interface Laboratory (MBI‐Lab)China Medical University HospitalTaichungTaiwan
- College of MedicineChina Medical UniversityTaichungTaiwan
- An‐Nan HospitalChina Medical UniversityTainanTaiwan
| | - Yanlong Liu
- Zhejiang Provincial Clinical Research Center for Mental Disorders, The Affiliated Wenzhou Kangning HospitalWenzhou Medical UniversityWenzhouChina
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Koukoulis TF, Beauchamp LC, Kaparakis-Liaskos M, McQuade RM, Purnianto A, Finkelstein DI, Barnham KJ, Vella LJ. Do Bacterial Outer Membrane Vesicles Contribute to Chronic Inflammation in Parkinson's Disease? JOURNAL OF PARKINSON'S DISEASE 2024; 14:227-244. [PMID: 38427502 DOI: 10.3233/jpd-230315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/03/2024]
Abstract
Parkinson's disease (PD) is an increasingly common neurodegenerative disease. It has been suggested that the etiology of idiopathic PD is complex and multifactorial involving environmental contributions, such as viral or bacterial infections and microbial dysbiosis, in genetically predisposed individuals. With advances in our understanding of the gut-brain axis, there is increasing evidence that the intestinal microbiota and the mammalian immune system functionally interact. Recent findings suggest that a shift in the gut microbiome to a pro-inflammatory phenotype may play a role in PD onset and progression. While there are links between gut bacteria, inflammation, and PD, the bacterial products involved and how they traverse the gut lumen and distribute systemically to trigger inflammation are ill-defined. Mechanisms emerging in other research fields point to a role for small, inherently stable vesicles released by Gram-negative bacteria, called outer membrane vesicles in disease pathogenesis. These vesicles facilitate communication between bacteria and the host and can shuttle bacterial toxins and virulence factors around the body to elicit an immune response in local and distant organs. In this perspective article, we hypothesize a role for bacterial outer membrane vesicles in PD pathogenesis. We present evidence suggesting that these outer membrane vesicles specifically from Gram-negative bacteria could potentially contribute to PD by traversing the gut lumen to trigger local, systemic, and neuroinflammation. This perspective aims to facilitate a discussion on outer membrane vesicles in PD and encourage research in the area, with the goal of developing strategies for the prevention and treatment of the disease.
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Affiliation(s)
- Tiana F Koukoulis
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, VIC, Australia
| | - Leah C Beauchamp
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, VIC, Australia
- Ann Romney Center for Neurologic Diseases, Brighamand Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Maria Kaparakis-Liaskos
- Department of Microbiology, Anatomy, Physiology and Pharmacology, La Trobe University, Melbourne, VIC, Australia
| | - Rachel M McQuade
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, VIC, Australia
- Department of Medicine, Gut-Axis Injury and Repair Laboratory, Western Centre for Health Research and Education (WCHRE), The University of Melbourne, Sunshine Hospital, St Albans, VIC, Australia
- Australian Institute of Musculoskeletal Science (AIMSS), Western Centre for Health Research and Education (WCHRE), Sunshine Hospital, St Albans, VIC, Australia
| | - Adityas Purnianto
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, VIC, Australia
| | - David I Finkelstein
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, VIC, Australia
| | - Kevin J Barnham
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, VIC, Australia
| | - Laura J Vella
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, VIC, Australia
- Department of Surgery, The University of Melbourne, The Royal Melbourne Hospital, Parkville, VIC, Australia
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Fang Y, Zhang T, Li L, Chen S, Wang L, Tang J, Liao Y. Nicotine Decreases Nerve Regeneration and Pain Behaviors via PTEN and Downstream Inflammation-Related Pathway in Two Rat Nerve Injury Models. eNeuro 2023; 10:ENEURO.0185-23.2023. [PMID: 37620149 PMCID: PMC10484360 DOI: 10.1523/eneuro.0185-23.2023] [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: 05/29/2023] [Revised: 07/14/2023] [Accepted: 08/08/2023] [Indexed: 08/26/2023] Open
Abstract
Neuropathic pain is stubborn and associated with the peripheral nerve regeneration process. Nicotine has been found to reduce pain, but whether it is involved in the regulation of nerve regeneration and the underlying mechanism are unknown. In this study, we examined the mechanical allodynia thermal hyperalgesia together with the peripheral nerve regeneration after nicotine exposure in two rat neuropathic pain models. In the spinal nerve ligation model, in which anatomic nerve regeneration can be easily observed, nicotine reduced anatomic measures of regeneration as well as expression of regeneration marker growth-associated protein 43 (GAP43). In the tibial nerve crush model, nicotine treatment significantly suppressed GAP43 expression and functional reinnervation as measured by myelinated action potential and electromyography of gastrocnemius. In both models, nicotine treatment reduced macrophage density in the sensory ganglia and peripheral nerve. These effects of nicotine were reversed by the selective α7 nicotinic acetylcholine receptor (nAChR) blocker methyllycaconitine. In addition, nicotine significantly elevated expression of PTEN (the phosphatase and tensin homolog deleted on chromosome 10), a key player in both regeneration and pain. Pharmacological interference of PTEN could regulate GAP43 expression, pain-related behaviors, and macrophage infiltration in a nicotine-treated nerve crush model. Our results reveal that nicotine and its α7-nAChR regulate both peripheral nerve regeneration process and pain though PTEN and the downstream inflammation-related pathway.
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Affiliation(s)
- Yehong Fang
- Department of Psychiatry, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310016, People's Republic of China
| | - Tingkai Zhang
- Department of Psychiatry, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310016, People's Republic of China
| | - Ling Li
- Department of Psychiatry, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310016, People's Republic of China
| | - Shanshan Chen
- Department of Psychiatry, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310016, People's Republic of China
| | - Liangliang Wang
- Department of Psychiatry, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310016, People's Republic of China
| | - Jinsong Tang
- Department of Psychiatry, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310016, People's Republic of China
| | - Yanhui Liao
- Department of Psychiatry, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310016, People's Republic of China
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Bautista M, Mogul AS, Fowler CD. Beyond the label: current evidence and future directions for the interrelationship between electronic cigarettes and mental health. Front Psychiatry 2023; 14:1134079. [PMID: 37645635 PMCID: PMC10460914 DOI: 10.3389/fpsyt.2023.1134079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Accepted: 07/31/2023] [Indexed: 08/31/2023] Open
Abstract
Electronic cigarette use has dramatically increased over the last decade. With this recent technological development and wide range of constituents in various products, putative adverse effects on the brain and body have been largely unexplored. Here, we review current evidence linking electronic nicotine cigarette use with potential health consequences and provide evidence supporting an association between drug use and depression in humans. We also examine the biological effects of individual constituents in electronic cigarette aerosols, which include labeled ingredients, such as propylene glycol, vegetable glycerin, nicotine, and flavorants, as well as unlabeled ingredients found in the aerosols, such as carbonyls and heavy metals. Lastly, we examine the effects of electronic cigarette use on endogenous metabolism via changes in cytochrome P450 enzymes, which can thereby impact therapeutic outcomes. While the current evidence offers insight into the potential effects of electronic cigarette use on biological processes, further studies are necessary to determine the long-term clinical relevance of aerosol inhalation.
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Affiliation(s)
| | | | - Christie D. Fowler
- Department of Neurobiology and Behavior, University of California, Irvine, Irvine, CA, United States
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Zanussi JT, Zhao J, Wei WQ, Karakoc G, Chung CP, Feng Q, Olsen NJ, Stein CM, Kawai VK. Clinical diagnoses associated with a positive antinuclear antibody test in patients with and without autoimmune disease. BMC Rheumatol 2023; 7:24. [PMID: 37550754 PMCID: PMC10405518 DOI: 10.1186/s41927-023-00349-4] [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: 11/06/2022] [Accepted: 07/27/2023] [Indexed: 08/09/2023] Open
Abstract
BACKGROUND Antinuclear antibodies (ANA) are antibodies present in several autoimmune disorders. However, a large proportion of the general population (20%) also have a positive test; very few of these individuals will develop an autoimmune disease, and the clinical impact of a positive ANA in them is not known. Thus, we test the hypothesis that ANA + test reflects a state of immune dysregulation that alters risk for some clinical disorders in individuals without an autoimmune disease. METHODS We performed high throughput association analyses in a case-control study using real world data from the de-identified electronic health record (EHR) system from Vanderbilt University Medical Center. The study population included individuals with an ANA titer ≥ 1:80 at any time (ANA +) and those with negative results (ANA-). The cohort was stratified into sub-cohorts of individuals with and without an autoimmune disease. A phenome-wide association study (PheWAS) adjusted by sex, year of birth, race, and length of follow-up was performed in the study cohort and in the sub-cohorts. As secondary analyses, only clinical diagnoses after ANA testing were included in the analyses. RESULTS The cohort included 70,043 individuals: 49,546 without and 20,497 with an autoimmune disease, 26,579 were ANA + and 43,464 ANA-. In the study cohort and the sub-cohort with autoimmune disease, ANA + was associated (P ≤ 5 × 10-5) with 88 and 136 clinical diagnoses respectively, including lupus (OR ≥ 5.4, P ≤ 7.8 × 10-202) and other autoimmune diseases and complications. In the sub-cohort without autoimmune diseases, ANA + was associated with increased risk of Raynaud's syndrome (OR ≥ 2.1) and alveolar/perialveolar-related pneumopathies (OR ≥ 1.4) and decreased risk of hepatitis C, tobacco use disorders, mood disorders, convulsions, fever of unknown origin, and substance abuse disorders (OR ≤ 0.8). Analyses including only diagnoses after ANA testing yielded similar results. CONCLUSION A positive ANA test, in addition to known associations with autoimmune diseases, Raynaud's phenomenon, and idiopathic fibrosing alveolitis related disorders, is associated with decreased prevalence of several non-autoimmune diseases.
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Affiliation(s)
- Jacy T Zanussi
- Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Juan Zhao
- Department of Biomedical Informatics, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Wei-Qi Wei
- Department of Biomedical Informatics, Vanderbilt University School of Medicine, Nashville, TN, USA
- Vanderbilt Genetics Institute, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Gul Karakoc
- Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Cecilia P Chung
- Vanderbilt Genetics Institute, Vanderbilt University School of Medicine, Nashville, TN, USA
- Division of Rheumatology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
- Tennessee Valley Healthcare System - Nashville Campus, Nashville, TN, USA
| | - QiPing Feng
- Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
- Vanderbilt Genetics Institute, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Nancy J Olsen
- Department of Medicine, Penn State Milton S. Hershey Medical Center, Hershey, PA, USA
| | - C Michael Stein
- Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
- Vanderbilt Genetics Institute, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Vivian K Kawai
- Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA.
- Vanderbilt Genetics Institute, Vanderbilt University School of Medicine, Nashville, TN, USA.
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O'Brien BCV, Weber L, Hueffer K, Weltzin MM. SARS-CoV-2 spike ectodomain targets α7 nicotinic acetylcholine receptors. J Biol Chem 2023; 299:104707. [PMID: 37061001 PMCID: PMC10101490 DOI: 10.1016/j.jbc.2023.104707] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 03/13/2023] [Accepted: 04/10/2023] [Indexed: 04/17/2023] Open
Abstract
Virus entry into animal cells is initiated by attachment to target macromolecules located on host cells. The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) trimeric spike glycoprotein targets host angiotensin converting enzyme 2 to gain cellular access. The SARS-CoV-2 glycoprotein contains a neurotoxin-like region that has sequence similarities to the rabies virus and the HIV glycoproteins, as well as to snake neurotoxins, which interact with nicotinic acetylcholine receptor (nAChR) subtypes via this region. Using a peptide of the neurotoxin-like region of SARS-CoV-2 (SARS-CoV-2 glycoprotein peptide [SCoV2P]), we identified that this area moderately inhibits α3β2, α3β4, and α4β2 subtypes, while potentiating and inhibiting α7 nAChRs. These nAChR subtypes are found in target tissues including the nose, lung, central nervous system, and immune cells. Importantly, SCoV2P potentiates and inhibits ACh-induced α7 nAChR responses by an allosteric mechanism, with nicotine enhancing these effects. Live-cell confocal microscopy was used to confirm that SCoV2P interacts with α7 nAChRs in transfected neuronal-like N2a and human embryonic kidney 293 cells. The SARS-CoV-2 ectodomain functionally potentiates and inhibits the α7 subtype with nanomolar potency. Our functional findings identify that the α7 nAChR is a target for the SARS-CoV-2 glycoprotein, providing a new aspect to our understanding of SARS-CoV-2 and host cell interactions, in addition to disease pathogenesis.
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Affiliation(s)
- Brittany C V O'Brien
- Department of Chemistry and Biochemistry, University of Alaska Fairbanks, Fairbanks, Alaska, USA
| | - Lahra Weber
- Department of Chemistry and Biochemistry, University of Alaska Fairbanks, Fairbanks, Alaska, USA
| | - Karsten Hueffer
- Department of Veterinary Medicine, University of Alaska Fairbanks, Fairbanks, Alaska, USA
| | - Maegan M Weltzin
- Department of Chemistry and Biochemistry, University of Alaska Fairbanks, Fairbanks, Alaska, USA.
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Mohammed MA. Fighting cytokine storm and immunomodulatory deficiency: By using natural products therapy up to now. Front Pharmacol 2023; 14:1111329. [PMID: 37124230 PMCID: PMC10134036 DOI: 10.3389/fphar.2023.1111329] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 03/14/2023] [Indexed: 05/02/2023] Open
Abstract
A novel coronavirus strain (COVID-19) caused severe illness and mortality worldwide from 31 December 2019 to 21 March 2023. As of this writing, 761,071,826 million cases have been diagnosed worldwide, with 6,879,677 million deaths accorded by WHO organization and has spread to 228 countries. The number of deaths is closely connected to the growth of innate immune cells in the lungs, mainly macrophages, which generate inflammatory cytokines (especially IL-6 and IL-1β) that induce "cytokine storm syndrome" (CSS), multi-organ failure, and death. We focus on promising natural products and their biologically active chemical constituents as potential phytopharmaceuticals that target virus-induced pro-inflammatory cytokines. Successful therapy for this condition is currently rare, and the introduction of an effective vaccine might take months. Blocking viral entrance and replication and regulating humoral and cellular immunity in the uninfected population are the most often employed treatment approaches for viral infections. Unfortunately, no presently FDA-approved medicine can prevent or reduce SARS-CoV-2 access and reproduction. Until now, the most important element in disease severity has been the host's immune response activation or suppression. Several medicines have been adapted for COVID-19 patients, including arbidol, favipiravir, ribavirin, lopinavir, ritonavir, hydroxychloroquine, chloroquine, dexamethasone, and anti-inflammatory pharmaceutical drugs, such as tocilizumab, glucocorticoids, anakinra (IL-1β cytokine inhibition), and siltuximab (IL-6 cytokine inhibition). However, these synthetic medications and therapies have several side effects, including heart failure, permanent retinal damage in the case of hydroxyl-chloroquine, and liver destruction in the case of remdesivir. This review summarizes four strategies for fighting cytokine storms and immunomodulatory deficiency induced by COVID-19 using natural product therapy as a potential therapeutic measure to control cytokine storms.
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Agbomi LL, Onuoha CP, Nathaniel SI, Coker-Ayo OO, Bailey-Taylor MJ, Roley LT, Poupore N, Goodwin RL, Nathaniel TI. Gender differences in Parkinson's disease with dementia and dementia with Lewy bodies. AGING AND HEALTH RESEARCH 2022. [DOI: 10.1016/j.ahr.2022.100096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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14
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Cordova J, Pfeiffer RM, Choi K, Grana Mayne R, Baker L, Bachand J, Constantine K, Altekruse S, Reyes-Guzman C. Tobacco use profiles by respiratory disorder status for adults in the wave 1-wave 4 population assessment of tobacco and health (PATH) study. Prev Med Rep 2022; 30:102016. [PMID: 36325251 PMCID: PMC9619025 DOI: 10.1016/j.pmedr.2022.102016] [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: 01/18/2022] [Revised: 10/06/2022] [Accepted: 10/09/2022] [Indexed: 11/07/2022] Open
Abstract
Exclusive ENDS use is associated with a prior COPD diagnosis. Dual ENDS/cigarette use is associated with prior diagnoses of COPD and bronchitis. Analyses adjusted for behavioral health symptoms and other respiratory disorders. Complete tobacco cessation is most beneficial in reducing respiratory complications.
Limited evidence exists on the association between electronic nicotine delivery systems (ENDS) and chronic respiratory disorders. This study examines the association of combustible tobacco and ENDS use with chronic respiratory disorders among US adults. Public-use data from the Population Assessment of Tobacco and Health (PATH) Study Wave 1 (2013–2014), Wave 2 (2014–2015), Wave 3 (2015–2016), and Wave 4 (2016–2018) were pooled. Analyses focused on adults with W1–W4 respiratory disorder data and current tobacco use at W4, as well as youth entering the adult cohort at W2 through W4 (N = 26,072). We fit weighted multivariable logistic regression models for each respiratory outcome (asthma, COPD, bronchitis) using W4 longitudinal weights. Cigarette smokers (adjusted odds ratio [AOR] = 0.8, 95 % CI 0.7–0.9) were less likely to report an asthma diagnosis (p = 0.013). In contrast, ENDS users (AOR = 6.5, 95 % CI 3.7–11.5), cigarette smokers (AOR = 6.1, 95 % CI 4.0–9.1), dual users of cigarettes and ENDS (AOR = 5.4, 95 % CI 3.4–8.7), current users of non-cigarette combustible, smokeless, and polytobacco products (AOR = 4.4, 95 % CI 3.1–6.4), and former users of any product (AOR = 3.0, 95 % CI 1.9–4.7) had significantly elevated odds of reporting a diagnosis of COPD (p < 0.001). Similar patterns to COPD were observed for bronchitis (p < 0.001). Current and former tobacco use, including ENDS, were significantly associated with prevalence of self-reported COPD and bronchitis after controlling for demographic and psychosocial confounders.
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Affiliation(s)
- Jamie Cordova
- Tobacco Control Research Branch, Behavioral Research Program, Division of Cancer Control and Population Sciences, National Cancer Institute, National Institutes of Health, 9609 Medical Center Drive, MSC 9776, Bethesda, MD 20892, United States,Noninfectious Disease Programs, National Foundation for the Centers for Disease Control and Prevention, P.O. Box 117300, Atlanta, GA 30368, United States
| | - Ruth M. Pfeiffer
- Biostatistics Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, 9609 Medical Center Drive, MSC 9776, Bethesda, MD 20892, United States
| | - Kelvin Choi
- Division of Intramural Research, National Institute of Minority Health and Health Disparities, National Institutes of Health, 6707 Democracy Blvd., Suite 800, Bethesda, MD 20892, United States
| | - Rachel Grana Mayne
- Tobacco Control Research Branch, Behavioral Research Program, Division of Cancer Control and Population Sciences, National Cancer Institute, National Institutes of Health, 9609 Medical Center Drive, MSC 9776, Bethesda, MD 20892, United States
| | - Laura Baker
- The Bizzell Group, LLC, 4500 Forbes Blvd., Suite 400, Lanham, MD 20706, United States
| | - Jacqueline Bachand
- US Department of Housing and Urban Development, Office of Policy Development and Research, 451 7th St. SW, Washington, D.C. 20410, United States
| | - Kristen Constantine
- Center for Medicare & Medicaid Innovation, U.S. Centers for Medicare & Medicaid Services. 7500 Security Boulevard, Baltimore, MD 21244, United States
| | - Sean Altekruse
- National Heart, Lung, and Blood Institute, National Institutes of Health, 31 Center Drive, Bethesda, MD 20892, United States
| | - Carolyn Reyes-Guzman
- Tobacco Control Research Branch, Behavioral Research Program, Division of Cancer Control and Population Sciences, National Cancer Institute, National Institutes of Health, 9609 Medical Center Drive, MSC 9776, Bethesda, MD 20892, United States,Corresponding author at: National Institutes of Health, National Cancer Institute, Division of Cancer Control & Population Sciences, Tobacco Control Research Branch, 9609 Medical Center Drive, Room 3E564, MSC 9761, Bethesda, MD, United States.
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15
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Agarwal D, Paul S, Lele P, Piprode V, Kawade A, Hajela N, Bavdekar A, Parulekar V, Ginde M, Paranjape G, Matsuda K, Hori T, Juvekar S, Lal G. Changes in immunological parameters by ageing in rural healthy Indian adults and their associations with sex and lifestyle. Sci Rep 2022; 12:15012. [PMID: 36056136 PMCID: PMC9438881 DOI: 10.1038/s41598-022-19227-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 08/25/2022] [Indexed: 11/09/2022] Open
Abstract
Several factors including sex and lifestyle have been reported to contribute to the age-related alteration of immune functions. The study was undertaken to determine age-related differences in the proportion of peripheral blood mononuclear lymphocytes in the Indian population using blood samples from 67 healthy adults (33 females and 34 males) aged between 20 and 80 years old. In the linear regression analysis to estimate the relationship with age categories, there was a significant increase in the frequency of natural killer cells with ageing, while their cytolytic activity significantly declined. The frequency of CD4+ T cells increased with age, whereas that of CD8+ T cells decreased, resulting in the age-associated increase of the CD4/CD8 ratio. The subsets of B cells did not show any significant relationship with age. Although there were variations between the male and female subgroups in effect size of ageing, the trends were in the same direction in all the parameters. Reduced fat intake was associated with a lower frequency of CD4+ T cells, and higher serum cotinine level was associated with a higher CD4/CD8 ratio. The results indicate that cellular immunity in the Indian population is affected by ageing, while humoral immunity is less susceptible to ageing.
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Affiliation(s)
- Dhiraj Agarwal
- KEM Hospital Research Centre, Vadu Rural Health Program, Pune, Maharashtra, 412216, India
| | - Sourav Paul
- National Centre for Cell Science, NCCS Complex, Ganeshkhind, Pune, Maharashtra, 411007, India
| | - Pallavi Lele
- KEM Hospital Research Centre, Vadu Rural Health Program, Pune, Maharashtra, 412216, India
| | - Vikrant Piprode
- National Centre for Cell Science, NCCS Complex, Ganeshkhind, Pune, Maharashtra, 411007, India
| | - Anand Kawade
- KEM Hospital Research Centre, Vadu Rural Health Program, Pune, Maharashtra, 412216, India
| | - Neerja Hajela
- Yakult Danone India Pvt. Ltd., 212, Ground Floor, Okhla Industrial Estate Phase-III, New Delhi, Delhi, 110020, India
| | - Ashish Bavdekar
- Paediatrics Department, KEM Hospital Research Centre, Pune, Maharashtra, 411011, India
| | - Varsha Parulekar
- DiagnoSearch Life Sciences Pvt. Ltd., 702, Dosti Pinnacle Plot No. E-7, Road No. 22 Wagle Industrial Estate, Thane, Maharashtra, 400604, India
| | - Manisha Ginde
- DiagnoSearch Life Sciences Pvt. Ltd., 702, Dosti Pinnacle Plot No. E-7, Road No. 22 Wagle Industrial Estate, Thane, Maharashtra, 400604, India
| | - Gandhali Paranjape
- DiagnoSearch Life Sciences Pvt. Ltd., 702, Dosti Pinnacle Plot No. E-7, Road No. 22 Wagle Industrial Estate, Thane, Maharashtra, 400604, India
| | - Kazunori Matsuda
- Yakult Central Institute, 5-11 Izumi, Kunitachi-Shi, Tokyo, 186-8650, Japan
| | - Tetsuji Hori
- Yakult Central Institute, 5-11 Izumi, Kunitachi-Shi, Tokyo, 186-8650, Japan
| | - Sanjay Juvekar
- KEM Hospital Research Centre, Vadu Rural Health Program, Pune, Maharashtra, 412216, India
| | - Girdhari Lal
- National Centre for Cell Science, NCCS Complex, Ganeshkhind, Pune, Maharashtra, 411007, India.
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Rossato M, Vincenzo AD. Commentary on the paper: Association of smoking and severity of COVID-19 infection among 5,889 patients in Malaysia: a multi-center observational study, by Ismail N, Hassan N, Hamid MHNA, Yusoff UN, Khamal NR, Omar MA, et al. Published in Int J Infect Dis 2022;116:189-96. Int J Infect Dis 2022; 121:112. [PMID: 35569752 PMCID: PMC9098801 DOI: 10.1016/j.ijid.2022.05.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Accepted: 05/07/2022] [Indexed: 11/25/2022] Open
Affiliation(s)
- Marco Rossato
- Clinica Medica 3 - Department of Medicine, DIMED - University Hospital of Padova, Padova, Italy.
| | - Angelo Di Vincenzo
- Clinica Medica 3 - Department of Medicine, DIMED - University Hospital of Padova, Padova, Italy
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Sey NYA, Hu B, Iskhakova M, Lee S, Sun H, Shokrian N, Ben Hutta G, Marks JA, Quach BC, Johnson EO, Hancock DB, Akbarian S, Won H. Chromatin architecture in addiction circuitry identifies risk genes and potential biological mechanisms underlying cigarette smoking and alcohol use traits. Mol Psychiatry 2022; 27:3085-3094. [PMID: 35422469 PMCID: PMC9853312 DOI: 10.1038/s41380-022-01558-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 03/21/2022] [Accepted: 03/30/2022] [Indexed: 01/25/2023]
Abstract
Cigarette smoking and alcohol use are among the most prevalent substances used worldwide and account for a substantial proportion of preventable morbidity and mortality, underscoring the public health significance of understanding their etiology. Genome-wide association studies (GWAS) have successfully identified genetic variants associated with cigarette smoking and alcohol use traits. However, the vast majority of risk variants reside in non-coding regions of the genome, and their target genes and neurobiological mechanisms are unknown. Chromosomal conformation mappings can address this knowledge gap by charting the interaction profiles of risk-associated regulatory variants with target genes. To investigate the functional impact of common variants associated with cigarette smoking and alcohol use traits, we applied Hi-C coupled MAGMA (H-MAGMA) built upon cortical and newly generated midbrain dopaminergic neuronal Hi-C datasets to GWAS summary statistics of nicotine dependence, cigarettes per day, problematic alcohol use, and drinks per week. The identified risk genes mapped to key pathways associated with cigarette smoking and alcohol use traits, including drug metabolic processes and neuronal apoptosis. Risk genes were highly expressed in cortical glutamatergic, midbrain dopaminergic, GABAergic, and serotonergic neurons, suggesting them as relevant cell types in understanding the mechanisms by which genetic risk factors influence cigarette smoking and alcohol use. Lastly, we identified pleiotropic genes between cigarette smoking and alcohol use traits under the assumption that they may reveal substance-agnostic, shared neurobiological mechanisms of addiction. The number of pleiotropic genes was ~26-fold higher in dopaminergic neurons than in cortical neurons, emphasizing the critical role of ascending dopaminergic pathways in mediating general addiction phenotypes. Collectively, brain region- and neuronal subtype-specific 3D genome architecture helps refine neurobiological hypotheses for smoking, alcohol, and general addiction phenotypes by linking genetic risk factors to their target genes.
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Affiliation(s)
- Nancy Y A Sey
- UNC Neuroscience Center, University of North Carolina, Chapel Hill, NC, 27599, USA
- Department of Genetics, University of North Carolina, Chapel Hill, NC, 27599, USA
| | - Benxia Hu
- UNC Neuroscience Center, University of North Carolina, Chapel Hill, NC, 27599, USA
- Department of Genetics, University of North Carolina, Chapel Hill, NC, 27599, USA
| | - Marina Iskhakova
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
- Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
- Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Sool Lee
- Department of Genetics, University of North Carolina, Chapel Hill, NC, 27599, USA
| | - Huaigu Sun
- Department of Genetics, University of North Carolina, Chapel Hill, NC, 27599, USA
| | - Neda Shokrian
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
- Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
- Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Gabriella Ben Hutta
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
- Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
- Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Jesse A Marks
- GenOmics, Bioinformatics, and Translational Research Center, Biostatistics and Epidemiology Division, RTI International, Research Triangle Park, Chapel Hill, NC, 27709, USA
| | - Bryan C Quach
- GenOmics, Bioinformatics, and Translational Research Center, Biostatistics and Epidemiology Division, RTI International, Research Triangle Park, Chapel Hill, NC, 27709, USA
| | - Eric O Johnson
- GenOmics, Bioinformatics, and Translational Research Center, Biostatistics and Epidemiology Division, RTI International, Research Triangle Park, Chapel Hill, NC, 27709, USA
- Fellow Program, RTI International, Research Triangle Park, Chapel Hill, NC, 27709, USA
| | - Dana B Hancock
- GenOmics, Bioinformatics, and Translational Research Center, Biostatistics and Epidemiology Division, RTI International, Research Triangle Park, Chapel Hill, NC, 27709, USA
| | - Schahram Akbarian
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA.
- Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA.
- Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA.
| | - Hyejung Won
- UNC Neuroscience Center, University of North Carolina, Chapel Hill, NC, 27599, USA.
- Department of Genetics, University of North Carolina, Chapel Hill, NC, 27599, USA.
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Anti-inflammatory activity of Nicotine isolated from Brassica oleracea in Rheumatoid Arthritis. Biosci Rep 2022; 42:231028. [PMID: 35289351 PMCID: PMC9069442 DOI: 10.1042/bsr20211392] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 02/24/2022] [Accepted: 03/09/2022] [Indexed: 11/17/2022] Open
Abstract
Rheumatoid arthritis (RA) is an autoimmune disease, associated with chronic inflammation of synoviocytes. TNFα plays a crucial role in the pathogenesis of RA through pro-inflammatory cytokines. Nicotine, an alkaloid used as herbal medicine, often worked as an anti-inflammatory agent. In this study, we tried to uncover the anti-inflammatory impact of nicotine against RA. Nicotine was isolated from Brassica oleracea, purified by high profile liquid chromatography (HPLC). In-silico docking was carried out using bioinformatics tools SWISSADME, PASS, and DIGEP-Pred to determine drug likeliness of nicotine. The In-vitro study was performed in Tumor necrosis factor (TNFα) induced SW982 Synoviocytes by qPCR. mRNA expression of pro-inflammatory cytokines (TNF, IL6, IL1β) and proteins (TRAF2, P50, P65) were analyzed followed by validation of P65 (RELA), pP65, IkBα by western blot analysis. Nicotine compound was extracted from Brassica oleracea and purified by HPLC method (Rt values at 2.67 min). The physicochemical, pharmacokinetic properties and drug-likeliness of nicotine was studied by in-silico analysis. In-vitro studies revealed that nicotine lowers the expression of inflammatory cytokines (TNF, IL6, IL1β) and proteins (TRAF2, P50, P65) at 1 µg/ml in TNFα induced SW982 cells.Nicotine from natural sources (Brassica oleracea) has been found to be an effective anti- inflammatory compound at a low dosage. Thus identified the role of nicotine present in the natural sources as a therapeutic option for RA, may be recommended as remedial drug instead of synthetic drug.
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Karbownik MS, Mokros Ł, Dobielska M, Kowalczyk M, Kowalczyk E. Association Between Consumption of Fermented Food and Food-Derived Prebiotics With Cognitive Performance, Depressive, and Anxiety Symptoms in Psychiatrically Healthy Medical Students Under Psychological Stress: A Prospective Cohort Study. Front Nutr 2022; 9:850249. [PMID: 35308282 PMCID: PMC8929173 DOI: 10.3389/fnut.2022.850249] [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: 01/07/2022] [Accepted: 01/26/2022] [Indexed: 12/22/2022] Open
Abstract
Background Gut microbiota-based therapeutic strategies, such as probiotic and prebiotic preparations, may benefit mental health. However, commonly consumed fermented and prebiotic-containing foods have not been well-tested. The aim of the present study was to determine whether consumption of fermented food and food-derived prebiotics is associated with cognitive performance, depressive, and anxiety symptoms in psychiatrically healthy medical students under psychological stress. Methods The study protocol with data analysis plan was prospectively registered. Food consumption was evaluated with a 7-day dietary record. Cognitive performance was modeled with academic examination performance in relation to subject knowledge. Pre-exam depressive and anxiety symptoms were assessed with the Patient Health Questionnaire-9 and Generalized Anxiety Disorder-7, respectively. Results In total, 372 medical students (22.7 ± 1.1 years of age, 66% female) completed the study. No relationship was observed between cognitive performance under stress and either fermented food (adjusted β 0.02, 95% CI −0.07–0.11, p = 0.63) or food-derived prebiotics consumption (adjusted β −0.00, 95% CI −0.09–0.09, p = 0.99). High intake of fermented food was associated with more severe depressive (adjusted β 0.11, 95% CI 0.01–0.20, p = 0.032) and anxiety symptoms under stress (adjusted β 0.13, 95% CI 0.04–0.22, p = 0.0065); however, no such link was observed for food-derived prebiotics (adjusted β 0.03, 95% CI −0.07–0.13, p = 0.50 and −0.01, 95% CI −0.11–0.08, p = 0.83, for depression and anxiety, respectively). Conclusions Under psychological stress in medical students, consumption of fermented food and food-derived prebiotics appears to be not associated with cognitive performance. High intake of fermented food, but not food-derived prebiotics, may be associated with severity of depressive and anxiety symptoms. The safety of fermented food in this regard therefore requires further clarification.
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Affiliation(s)
- Michał Seweryn Karbownik
- Department of Pharmacology and Toxicology, Medical University of Lodz, Łódź, Poland
- *Correspondence: Michał Seweryn Karbownik
| | - Łukasz Mokros
- Department of Clinical Pharmacology, Medical University of Lodz, Łódź, Poland
| | - Maria Dobielska
- Students' Research Club, Department of Pharmacology and Toxicology, Medical University of Lodz, Łódź, Poland
| | | | - Edward Kowalczyk
- Department of Pharmacology and Toxicology, Medical University of Lodz, Łódź, Poland
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Ho J, Koshibu K, Xia W, Luettich K, Kondylis A, Garcia L, Phillips B, Peitsch M, Hoeng J. Effects of cigarette smoke exposure on a mouse model of multiple sclerosis. Toxicol Rep 2022; 9:597-610. [PMID: 35392156 PMCID: PMC8980708 DOI: 10.1016/j.toxrep.2022.03.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 02/06/2022] [Accepted: 03/26/2022] [Indexed: 10/31/2022] Open
Abstract
Multiple sclerosis (MS) is an inflammatory autoimmune disease associated with genetic and environmental factors. Cigarette smoking is harmful to health and may be one of the risk factors for MS. However, there have been no systematic investigations under controlled experimental conditions linking cigarette smoke (CS) and MS. The present study is the first inhalation study to correlate the pre-clinical and pathological manifestations affected by different doses of CS exposure in a mouse experimental autoimmune encephalomyelitis (EAE) model. Female C57BL/6 mice were whole-body exposed to either fresh air (sham) or three concentrations of CS from a reference cigarette (3R4F) for 2 weeks before and 4 weeks after EAE induction. The effects of exposure on body weight, clinical symptoms, spinal cord pathology, and serum biochemicals were then assessed. Exposure to low and medium concentrations of CS exacerbated the severity of symptoms and spinal cord pathology, while the high concentration had no effect relative to sham exposure in mice with EAE. Interestingly, the clinical chemistry parameters for metabolic profile as well as liver and renal function (e.g. triglycerides and creatinine levels, alkaline phosphatase activity) were lower in these mice than in naïve controls. Although the mouse EAE model does not fully recapitulate the pathology or symptoms of MS in humans, these findings largely corroborate previous epidemiological findings that exposure to CS can worsen the symptoms and pathology of MS. Furthermore, the study newly highlights the possible correlation of clinical chemistry findings such as metabolism and liver and renal function between MS patients and EAE mice. Multiple sclerosis is an inflammatory autoimmune disease affected by many factors. First inhalation study to correlate the different doses of cigarette smoke on MS. Findings largely corroborate with previous epidemiological findings on CS exposure. High concentration of CS had no observable effect on EAE, contrast to low and medium. Potential correlation between MS and EAE model using clinical chemistry parameters.
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Zhang W, Lin H, Zou M, Yuan Q, Huang Z, Pan X, Zhang W. Nicotine in Inflammatory Diseases: Anti-Inflammatory and Pro-Inflammatory Effects. Front Immunol 2022; 13:826889. [PMID: 35251010 PMCID: PMC8895249 DOI: 10.3389/fimmu.2022.826889] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 01/21/2022] [Indexed: 11/13/2022] Open
Abstract
As an anti-inflammatory alkaloid, nicotine plays dual roles in treating diseases. Here we reviewed the anti-inflammatory and pro-inflammatory effects of nicotine on inflammatory diseases, including inflammatory bowel disease, arthritis, multiple sclerosis, sepsis, endotoxemia, myocarditis, oral/skin/muscle inflammation, etc., mainly concerning the administration methods, different models, therapeutic concentration and duration, and relevant organs and tissues. According to the data analysis from recent studies in the past 20 years, nicotine exerts much more anti-inflammatory effects than pro-inflammatory ones, especially in ulcerative colitis, arthritis, sepsis, and endotoxemia. On the other hand, in oral inflammation, nicotine promotes and aggravates some diseases such as periodontitis and gingivitis, especially when there are harmful microorganisms in the oral cavity. We also carefully analyzed the nicotine dosage to determine its safe and effective range. Furthermore, we summarized the molecular mechanism of nicotine in these inflammatory diseases through regulating immune cells, immune factors, and the vagus and acetylcholinergic anti-inflammatory pathways. By balancing the “beneficial” and “harmful” effects of nicotine, it is meaningful to explore the effective medical value of nicotine and open up new horizons for remedying acute and chronic inflammation in humans.
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Affiliation(s)
- Wenji Zhang
- Guangdong Provincial Engineering & Technology Research Center for Tobacco Breeding and Comprehensive Utilization, Key Laboratory of Crop Genetic Improvement of Guangdong Province, Crops Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Hui Lin
- Department of Radiation Oncology, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Mingmin Zou
- Guangdong Provincial Engineering & Technology Research Center for Tobacco Breeding and Comprehensive Utilization, Key Laboratory of Crop Genetic Improvement of Guangdong Province, Crops Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Qinghua Yuan
- Guangdong Provincial Engineering & Technology Research Center for Tobacco Breeding and Comprehensive Utilization, Key Laboratory of Crop Genetic Improvement of Guangdong Province, Crops Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Zhenrui Huang
- Guangdong Provincial Engineering & Technology Research Center for Tobacco Breeding and Comprehensive Utilization, Key Laboratory of Crop Genetic Improvement of Guangdong Province, Crops Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Xiaoying Pan
- Guangdong Provincial Engineering & Technology Research Center for Tobacco Breeding and Comprehensive Utilization, Key Laboratory of Crop Genetic Improvement of Guangdong Province, Crops Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
- *Correspondence: Xiaoying Pan, ; Wenjuan Zhang,
| | - Wenjuan Zhang
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, Guangzhou, China
- *Correspondence: Xiaoying Pan, ; Wenjuan Zhang,
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22
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Sanapalli BKR, Yele V, Sigalapalli DK, Gadewal N, Shaik AB, Bhandare RR, Annadurai S, Karri VVSR. Forging of nicotine for the effective management of diabetic wounds: A hybrid of scaffold hopping and molecular dynamics simulation approaches. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2021.103585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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23
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Ismail N, Hassan N, Abd Hamid MHN, Yusoff UN, Khamal NR, Omar MA, Wong XC, Pathmanathan MD, Mohd Zin S, Muhammad Zin F, Nik Mohamed MH, Mohd Nor N. ASSOCIATION OF SMOKING AND SEVERITY OF COVID-19 INFECTION AMONG 5,889 PATIENTS IN MALAYSIA: A MULTI-CENTER OBSERVATIONAL STUDY. Int J Infect Dis 2022; 116:189-196. [PMID: 35021062 PMCID: PMC8743378 DOI: 10.1016/j.ijid.2022.01.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 12/16/2021] [Accepted: 01/05/2022] [Indexed: 01/08/2023] Open
Abstract
Objective This study aims to investigate the association between smoking and the severity of COVID-19 infection during the initial wave of this pandemic in Malaysia. Methods This is a multi-center observational study using secondary hospital data collected retrospectively from February 1, 2020, until May 30, 2020. Clinical records of all real-time polymerase chain reaction (RT-PCR)-confirmed COVID-19 cases with smoking status, co-morbidities, clinical features, and disease management were retrieved. Severity was assessed by the presence of complications and outcomes of COVID-19 infection. Logistic regression was used to determine the association between COVID-19 disease severity and smoking status. Results A total of 5,889 COVID-19 cases were included in the analysis. Ever smokers had a higher risk of having COVID-19 complications, such as acute respiratory distress syndrome (odds ratio [OR] 1.69; 95% confidence interval [CI] 1.09-2.55), renal injury (OR 1.55; 95% CI 1.10-2.14), and acute liver injury (OR 1.33; 95% CI 1.01-1.74), compared with never smokers. However, in terms of disease outcomes, there were no differences between the two groups. Conclusion Although no significant association was found in terms of disease outcomes, smoking is associated with a higher risk of having complications owing to COVID-19 infection.
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Affiliation(s)
| | | | | | | | | | | | - Xin Ci Wong
- Digital Health Research and Innovation Unit, Institute for Clinical Research, Malaysia
| | | | | | | | - Mohamad Haniki Nik Mohamed
- Kulliyyah of Pharmacy, International Islamic University of Malaysia (Chairman of Technical Working Group World Health Organization Framework Convention on Tobacco Control Malaysia)
| | - Norashidah Mohd Nor
- Faculty of Economy, University Putra Malaysia (Vice Chairman of Technical Working Group World Health Organization Framework Convention on Tobacco Control Malaysia)
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Mech AM, Merteroglu M, Sealy IM, Teh MT, White RJ, Havelange W, Brennan CH, Busch-Nentwich EM. Behavioral and Gene Regulatory Responses to Developmental Drug Exposures in Zebrafish. Front Psychiatry 2022; 12:795175. [PMID: 35082702 PMCID: PMC8785235 DOI: 10.3389/fpsyt.2021.795175] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 11/29/2021] [Indexed: 01/22/2023] Open
Abstract
Developmental consequences of prenatal drug exposure have been reported in many human cohorts and animal studies. The long-lasting impact on the offspring-including motor and cognitive impairments, cranial and cardiac anomalies and increased prevalence of ADHD-is a socioeconomic burden worldwide. Identifying the molecular changes leading to developmental consequences could help ameliorate the deficits and limit the impact. In this study, we have used zebrafish, a well-established behavioral and genetic model with conserved drug response and reward pathways, to identify changes in behavior and cellular pathways in response to developmental exposure to amphetamine, nicotine or oxycodone. In the presence of the drug, exposed animals showed altered behavior, consistent with effects seen in mammalian systems, including impaired locomotion and altered habituation to acoustic startle. Differences in responses seen following acute and chronic exposure suggest adaptation to the presence of the drug. Transcriptomic analysis of exposed larvae revealed differential expression of numerous genes and alterations in many pathways, including those related to cell death, immunity and circadian rhythm regulation. Differential expression of circadian rhythm genes did not correlate with behavioral changes in the larvae, however, two of the circadian genes, arntl2 and per2, were also differentially expressed at later stages of development, suggesting a long-lasting impact of developmental exposures on circadian gene expression. The immediate-early genes, egr1, egr4, fosab, and junbb, which are associated with synaptic plasticity, were downregulated by all three drugs and in situ hybridization showed that the expression for all four genes was reduced across all neuroanatomical regions, including brain regions implicated in reward processing, addiction and other psychiatric conditions. We anticipate that these early changes in gene expression in response to drug exposure are likely to contribute to the consequences of prenatal exposure and their discovery might pave the way to therapeutic intervention to ameliorate the long-lasting deficits.
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Affiliation(s)
- Aleksandra M. Mech
- School of Biological and Behavioural Sciences, Faculty of Science and Engineering, Queen Mary University of London, London, United Kingdom
| | - Munise Merteroglu
- Department of Medicine, Cambridge Institute of Therapeutic Immunology and Infectious Disease, University of Cambridge, Cambridge, United Kingdom
| | - Ian M. Sealy
- Department of Medicine, Cambridge Institute of Therapeutic Immunology and Infectious Disease, University of Cambridge, Cambridge, United Kingdom
| | - Muy-Teck Teh
- Centre for Oral Immunobiology and Regenerative Medicine, Institute of Dentistry, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, England, United Kingdom
| | - Richard J. White
- Department of Medicine, Cambridge Institute of Therapeutic Immunology and Infectious Disease, University of Cambridge, Cambridge, United Kingdom
| | - William Havelange
- School of Biological and Behavioural Sciences, Faculty of Science and Engineering, Queen Mary University of London, London, United Kingdom
| | - Caroline H. Brennan
- School of Biological and Behavioural Sciences, Faculty of Science and Engineering, Queen Mary University of London, London, United Kingdom
| | - Elisabeth M. Busch-Nentwich
- School of Biological and Behavioural Sciences, Faculty of Science and Engineering, Queen Mary University of London, London, United Kingdom
- Department of Medicine, Cambridge Institute of Therapeutic Immunology and Infectious Disease, University of Cambridge, Cambridge, United Kingdom
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Rao RK, McConnell DD, Litofsky NS. The impact of cigarette smoking and nicotine on traumatic brain injury: a review. Brain Inj 2022; 36:1-20. [PMID: 35138210 DOI: 10.1080/02699052.2022.2034186] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 10/28/2021] [Indexed: 11/02/2022]
Abstract
INTRODUCTION Traumatic Brain Injury (TBI) and tobacco smoking are both serious public health problems. Many people with TBI also smoke. Nicotine, a component of tobacco smoke, has been identified as a premorbid neuroprotectant in other neurological disorders. This study aims to provide better understanding of relationships between tobacco smoking and nicotine use and effect on outcome/recovery from TBI. METHODS PubMed database, SCOPUS, and PTSDpub were searched for relevant English-language papers. RESULTS Twenty-nine human clinical studies and nine animal studies were included. No nicotine-replacement product use in human TBI clinical studies were identified. While smoking tobacco prior to injury can be harmful primarily due to systemic effects that can compromise brain function, animal studies suggest that nicotine as a pharmacological agent may augment recovery of cognitive deficits caused by TBI. CONCLUSIONS While tobacco smoking before or after TBI has been associated with potential harms, many clinical studies downplay correlations for most expected domains. On the other hand, nicotine could provide potential treatment for cognitive deficits following TBI by reversing impaired signaling pathways in the brain including those involving nAChRs, TH, and dopamine. Future studies regarding the impact of cigarette smoking and vaping on patients with TBI are needed .
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Affiliation(s)
- Rohan K Rao
- Division of Neurological Surgery, University of Missouri School of Medicine, Columbia, Missouri, USA
| | - Diane D McConnell
- Division of Neurological Surgery, University of Missouri School of Medicine, Columbia, Missouri, USA
| | - N Scott Litofsky
- Division of Neurological Surgery, University of Missouri School of Medicine, Columbia, Missouri, USA
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Raymond WD, Hamdorf M, Furfaro M, Eilertsen GO, Nossent JC. Smoking associates with increased BAFF and decreased interferon-γ levels in patients with systemic lupus erythematosus. Lupus Sci Med 2021; 8:8/1/e000537. [PMID: 34725185 PMCID: PMC8562512 DOI: 10.1136/lupus-2021-000537] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 10/09/2021] [Indexed: 12/16/2022]
Abstract
Objective In SLE, smoking increases the burden of cutaneous disease and organ damage, and leads to premature mortality. However, the effect of smoking on disease manifestations and cytokine levels of patients with SLE is unclear. This study compared characteristics of patients with SLE across smoking status, and determined the association of smoking with serum cytokine levels. Method A cross-sectional study of patients with SLE (n=99) during a research visit in which smoking status was ascertained. Smoking status was compared across classification criteria (American College of Rheumatology Classification Criteria for SLE (ACR97)), disease activity (SLE Disease Activity Index), autoantibody levels, accrued damage (Systemic Lupus International Collaborating Clinics/ACR Damage Index), and circulating concentrations of serum interferon-gamma (IFN-γ), interleukin (IL)-1β, IL-4, IL-6, IL-10, IL-12, IL-17, B cell-activating factor (BAFF), tumour necrosis factor-alpha, transforming growth factor beta 1 (TGF-β1), macrophage inflammatory protein 1 alpha (MIP-1α), MIP-1β and monocyte chemoattractant protein 1. Linear regression models determined the association between smoking and cytokine levels, adjusting for age and sex, clinical characteristics (model 1), and anti-inflammatory (IL-4, IL-10 and TGF- β1) and regulatory (IL-1β) cytokines (model 2). Results Among patients with SLE (97.9% ANA+; mean 48.48 years old; 86.9% female; mean 10 years of disease duration), 35.4% (n=35 of 99) were smoking (an average of 7 cigarettes/day for 24 years). Smokers had increased odds of prevalent ACR97 malar rash (OR 3.40, 95% CI 1.23 to 9.34) and mucosal ulcers (OR 3.31, 95% CI 1.36 to 8.05). Smokers had more arthritis (OR 3.19, 95% CI 1.19 to 8.60), migraine (OR 2.82, 95% CI 1.07 to 7.44), Raynaud’s phenomenon (OR 5.15, 95% CI 1.95 to 13.56) and increased non-steroidal anti-inflammatory drug use (OR 6.88, 95% CI 1.99 to 23.72). Smoking associated with 27% increased BAFF levels (95% CI 6% to 48%) and 42% decreased IFN-γ levels (95% CI −79% to −5%) in model 2. Conclusion In patients with SLE, smoking independently associated with increased BAFF and decreased IFN-γ levels, and an increased frequency of arthritis, migraine and Raynaud’s phenomenon. Smoking cessation is advisable to reduce systemic inflammation, reduce disease activity and improve host defence.
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Affiliation(s)
- Warren David Raymond
- Rheumatology Section, Medical School, University of Western Australia Faculty of Medicine, Dentistry and Health Sciences, Crawley, Western Australia, Australia
| | - Matthew Hamdorf
- Rheumatology Section, Medical School, University of Western Australia Faculty of Medicine, Dentistry and Health Sciences, Crawley, Western Australia, Australia
| | - Michael Furfaro
- Rheumatology Section, Medical School, University of Western Australia Faculty of Medicine, Dentistry and Health Sciences, Crawley, Western Australia, Australia
| | | | - Johannes Cornelis Nossent
- Rheumatology Section, Medical School, University of Western Australia Faculty of Medicine, Dentistry and Health Sciences, Crawley, Western Australia, Australia.,Clinical Medicine, UiT The Arctic University of Norway, Tromso, Norway
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Characterization, Cytotoxicity and Anti-Inflammatory Effect Evaluation of Nanocapsules Containing Nicotine. Bioengineering (Basel) 2021; 8:bioengineering8110172. [PMID: 34821738 PMCID: PMC8614771 DOI: 10.3390/bioengineering8110172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 10/26/2021] [Accepted: 10/27/2021] [Indexed: 11/17/2022] Open
Abstract
(1) Background: Nanotechnology is an emerging field that can be applied in the biomedical area. In this study, Eudragit nanocapsules (NCs) containing nicotine were produced. Nicotine is the main alkaloid found in tobacco and has anti-inflammatory properties. NCs containing nicotine may be used as an adjuvant therapy in the treatment of inflammation in the central nervous system. (2) Methods: Nanocapsules were prepared by the interfacial deposition of the pre-formed polymer method and characterized in terms of zeta potential, diameter, polydispersity index, pH, encapsulation efficiency (EE), stability and sustained release profile. In vitro tests with the PC12 cell line were performed, such as MTT, LIVE/DEAD and ELISA assays, to verify their cytotoxic and anti-inflammatory effects. (3) Results: The nanocapsules presented satisfactory values of the characterization parameters; however, poor encapsulation was obtained for nicotine (8.17% ± 0.47). The in vitro tests showed that the treatment with nanocapsules reduced cell viability, which suggests that the Eudragit or the amount of polymer on top of the cells may be detrimental to them, as the cells were able to survive when treated with bulk nicotine. ELISA showed an increment in the expression of IL-6 and IL-1β, corroborating the hypothesis that NCs were toxic to the cells because of the increase in the levels of these pro-inflammatory cytokines. (4) Conclusions: This study demonstrates that NCs of Eudragit present toxicity. It is therefore necessary to improve NC formulation to obtain better values for the encapsulation efficiency and reduce toxicity of these nanodevices.
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Römer P, Putzer AG, Kemmerich R, Mathes B. Effects of Prenatal Electronic Cigarette Exposure On Foetal Development: a Review of the Literature. Geburtshilfe Frauenheilkd 2021; 81:1224-1237. [PMID: 34754272 PMCID: PMC8568504 DOI: 10.1055/a-1524-5155] [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: 02/22/2021] [Accepted: 06/08/2021] [Indexed: 01/15/2023] Open
Abstract
Since their market launch in 2007, e-cigarettes gained popularity and were considered a relatively safe alternative to traditional cigarettes. Pregnant women and women of childbearing age in particular are increasingly turning to e-cigarettes. Little is known about the effects of prenatal exposure on the affected foetus. This paper aims to provide an overview of the current research on the effects of prenatal e-cigarette exposure on the foetus. Since studies in humans are lacking to date, this review refers only to animal and in vitro analyses. The PubMed and Web of Science databases were used for an extensive literature search. The search yielded N = 17 significant research papers. Possible sequelae resulting from prenatal exposure to traditional cigarettes were also seen in prenatal exposure to e-cigarettes. Prenatal e-cigarette exposure was found to be associated with increased DNA methylation overall, resulting in lower gene expression. This could adversely impact the development of affected children, especially in case of those genes relevant to their development. In mice, for example, this greatly reduced the cell vitality of neural and stem cells and increased cell death. Further, prenatal exposure to e-cigarettes resulted in numerous developmental disorders, such as malformations of facial morphology and lower birth weight. Moreover, in animal models the animals suffered from a deterioration of their short-term memory. Activity and cognitive flexibility increased, while anxiety behaviour decreased. It is clear that more research and especially studies of humans are needed on this issue. In addition, there is a need for more intense education of prenatal care professionals as well as women of childbearing age and during pregnancy.
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Affiliation(s)
- Pia Römer
- Bremer Initiative to Foster Early Child Development, Department 11, University of Bremen, Germany
| | - Amanda Goméz Putzer
- Bremer Initiative to Foster Early Child Development, Department 11, University of Bremen, Germany
| | - Robin Kemmerich
- Bremer Initiative to Foster Early Child Development, Department 11, University of Bremen, Germany
| | - Birgit Mathes
- Bremer Initiative to Foster Early Child Development, Department 11, University of Bremen, Germany
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Sonnenkalb L, Strohe G, Dreyer V, Andres S, Hillemann D, Maurer FP, Niemann S, Merker M. Microevolution of Mycobacterium tuberculosis Subpopulations and Heteroresistance in a Patient Receiving 27 Years of Tuberculosis Treatment in Germany. Antimicrob Agents Chemother 2021; 65:e0252020. [PMID: 33903103 PMCID: PMC8218629 DOI: 10.1128/aac.02520-20] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 04/16/2021] [Indexed: 12/13/2022] Open
Abstract
Preexisting and newly emerging resistant pathogen subpopulations (heteroresistance) are potential risk factors for treatment failure of multi/extensively drug resistant (MDR/XDR) tuberculosis (TB). Intrapatient evolutionary dynamics of Mycobacterium tuberculosis complex (Mtbc) strains and their implications on treatment outcomes are still not completely understood. To elucidate how Mtbc strains escape therapy, we analyzed 13 serial isolates from a German patient by whole-genome sequencing. Sequencing data were compared with phenotypic drug susceptibility profiles and the patient's collective 27-year treatment history to further elucidate factors fostering intrapatient resistance evolution. The patient endured five distinct TB episodes, ending in resistance to 16 drugs and a nearly untreatable XDR-TB infection. The first isolate obtained, during the patient's 5th TB episode, presented fixed resistance mutations to 7 anti-TB drugs, including isoniazid, rifampin, streptomycin, pyrazinamide, prothionamide, para-aminosalicylic acid, and cycloserine-terizidone. Over the next 13 years, a dynamic evolution with coexisting, heterogeneous subpopulations was observed in 6 out of 13 sequential bacterial isolates. The emergence of drug-resistant subpopulations coincided with frequent changes in treatment regimens, which often included two or fewer active compounds. This evolutionary arms race between competing subpopulations ultimately resulted in the fixation of a single XDR variant. Our data demonstrate the complex intrapatient microevolution of Mtbc subpopulations during failing MDR/XDR-TB treatment. Designing effective treatment regimens based on rapid detection of (hetero) resistance is key to avoid resistance development and treatment failure.
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Affiliation(s)
- Lindsay Sonnenkalb
- Molecular and Experimental Mycobacteriology, Research Centre Borstel, Borstel, Germany
| | - Gerald Strohe
- Landratsamt Karlsruhe, Gesundheitsamt, Karlsruhe, Germany
| | - Viola Dreyer
- Molecular and Experimental Mycobacteriology, Research Centre Borstel, Borstel, Germany
| | - Sönke Andres
- National and Supranational Reference Centre for Mycobacteria, Research Centre Borstel, Borstel, Germany
| | - Doris Hillemann
- National and Supranational Reference Centre for Mycobacteria, Research Centre Borstel, Borstel, Germany
| | - Florian P. Maurer
- National and Supranational Reference Centre for Mycobacteria, Research Centre Borstel, Borstel, Germany
- Institute of Medical Microbiology, Virology and Hygiene, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | - Stefan Niemann
- Molecular and Experimental Mycobacteriology, Research Centre Borstel, Borstel, Germany
- German Centre for Infection Research (DZIF), Partner site Hamburg-Lübeck-Borstel, Borstel, Germany
| | - Matthias Merker
- Molecular and Experimental Mycobacteriology, Research Centre Borstel, Borstel, Germany
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Herbstreit F, Overbeck M, Berger MM, Skarabis A, Brenner T, Schmidt K. Characteristics of Critically Ill Patients with COVID-19 Compared to Patients with Influenza-A Single Center Experience. J Clin Med 2021; 10:2056. [PMID: 34064851 PMCID: PMC8150703 DOI: 10.3390/jcm10102056] [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: 04/24/2021] [Revised: 05/02/2021] [Accepted: 05/07/2021] [Indexed: 01/28/2023] Open
Abstract
Infections with SARS-CoV-2 spread worldwide early in 2020. In previous winters, we had been treating patients with seasonal influenza. While creating a larger impact on the health care systems, comparisons regarding the intensive care unit (ICU) courses of both diseases are lacking. We compared patients with influenza and SARS-CoV-2 infections treated at a tertiary care facility offering treatment for acute respiratory distress syndrome (ARDS) and being a high-volume facility for extracorporeal membrane oxygenation (ECMO). Patients with COVID-19 during the first wave of the pandemic (n = 64) were compared to 64 patients with severe influenza from 2016 to 2020 at our ICU. All patients were treated using a standardized protocol. ECMO was used in cases of severe ARDS. Both groups had similar comorbidities. Time in ICU and mortality were not significantly different, yet mortality with ECMO was high amongst COVID-19 patients with approximately two-thirds not surviving. This is in contrast to a mortality of less than 40% in influenza patients with ECMO. Mortality was higher than estimated by SAPSII score on admission in both groups. Patients with COVID-19 were more likely to be male and non-smokers than those with influenza. The outcomes for patients with severe disease were similar. The study helps to understand similarities and differences between patients treated for severe influenza infections and COVID-19.
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Affiliation(s)
- Frank Herbstreit
- Department of Anesthesiology and Intensive Care Medicine, Faculty of Medicine and University Hospital Essen, University Duisburg-Essen, Hufelandstr. 55, 45147 Essen, Germany; (M.O.); (M.M.B.); (A.S.); (T.B.); (K.S.)
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Mizrachi T, Marsha O, Brusin K, Ben-David Y, Thakur GA, Vaknin-Dembinsky A, Treinin M, Brenner T. Suppression of neuroinflammation by an allosteric agonist and positive allosteric modulator of the α7 nicotinic acetylcholine receptor GAT107. J Neuroinflammation 2021; 18:99. [PMID: 33902624 PMCID: PMC8077754 DOI: 10.1186/s12974-021-02149-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Accepted: 04/03/2021] [Indexed: 02/07/2023] Open
Abstract
Background The α7 nicotinic acetylcholine receptor (α7 nAChR) negatively regulates the synthesis and release of pro-inflammatory cytokines by immune cells. Our previous studies showed that in encephalitogenic T cells, α7 nAChR expression is upregulated and that activation of the cholinergic system can attenuate experimental autoimmune encephalomyelitis (EAE). GAT107 is an allosteric agonist and positive allosteric modulator (ago-PAM) of α7 nAChR that can produce persistent activation of this receptor. Therefore, in the present study, we investigated the effect of GAT107 on neuroinflammation in EAE, the animal model used for the study of multiple sclerosis (MS) via α7 nAChR, and the inflammatory pathways involved. Methods EAE was induced by administration of myelin oligodendrocyte glycoprotein (MOG35–55) in C57BL/6 mice. EAE mice were treated with the ago-PAM GAT107 or a placebo for 9 days, starting from the day of EAE induction. Clinical assessment and immunological evaluation of immune cells and cytokine production was performed. Results Following activation of the α7 nAChR by GAT107 during EAE, disease severity was significantly reduced by 70% and was correlated with a reduction in the extent of neuroinflammation in the CNS. The treatment reduced encephalitogenic T cell proliferation and the production of pro-inflammatory cytokines, as well as increased the production of the anti-inflammatory cytokine IL-10. Furthermore, the expression of immune cell markers was altered by GAT107 treatment, which induced a significant reduction in macrophages, dendritic cells, and B cells, as well as a reduction in anti-MOG35–55 antibodies. Additionally, GAT107 was found to directly activate α7 nAChR in murine macrophage RAW264.7 cells and in human PBMCs derived from MS patients and healthy donors. Conclusions Our results show that GAT107 can be a useful molecule for harnessing the cholinergic anti-inflammatory pathway for long-lasting and wide-ranging modulation and downregulation of neuroinflammation in EAE.
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Affiliation(s)
- Tehila Mizrachi
- Department of Neurology, The Agnes Ginges Center for Human Neurogenetics, Hadassah University Hospital and Hebrew University Medical School, Jerusalem, Israel
| | - Oshrit Marsha
- Department of Neurology, The Agnes Ginges Center for Human Neurogenetics, Hadassah University Hospital and Hebrew University Medical School, Jerusalem, Israel
| | - Karen Brusin
- Department of Neurology, The Agnes Ginges Center for Human Neurogenetics, Hadassah University Hospital and Hebrew University Medical School, Jerusalem, Israel
| | - Yael Ben-David
- Department of Medical Neurobiology, Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Ganesh A Thakur
- Pharmaceutical Science, Bouve College of Health Science, Northeastern University, Boston, USA
| | - Adi Vaknin-Dembinsky
- Department of Neurology, The Agnes Ginges Center for Human Neurogenetics, Hadassah University Hospital and Hebrew University Medical School, Jerusalem, Israel
| | - Millet Treinin
- Department of Medical Neurobiology, Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Talma Brenner
- Department of Neurology, The Agnes Ginges Center for Human Neurogenetics, Hadassah University Hospital and Hebrew University Medical School, Jerusalem, Israel.
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Emerging Challenges in COVID-19 With Substance Use Disorders. ADDICTIVE DISORDERS & THEIR TREATMENT 2021. [DOI: 10.1097/adt.0000000000000266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Cervical transcutaneous vagal neuromodulation in chronic pancreatitis patients with chronic pain: A randomised sham controlled clinical trial. PLoS One 2021; 16:e0247653. [PMID: 33635894 PMCID: PMC7909707 DOI: 10.1371/journal.pone.0247653] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 02/09/2021] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND & AIMS Chronic abdominal pain is the primary symptom of chronic pancreatitis, but unfortunately it is difficult to treat. Vagal nerve stimulation studies have provided evidence of anti-nociceptive effect in several chronic pain conditions. We investigated the pain-relieving effects of transcutaneous vagal nerve stimulation in comparison to sham treatment in chronic pancreatitis patients. METHODS We conducted a randomised double-blinded, sham-controlled, crossover trial in patients with chronic pancreatitis. Patients were randomly assigned to receive a two-week period of cervical transcutaneous vagal nerve stimulation using the gammaCore device followed by a two-week sham stimulation, or vice versa. We measured clinical and experimental endpoints before and after each treatment. The primary clinical endpoint was pain relief, documented in a pain diary using a visual analogue scale. Secondary clinical endpoints included Patients' Global Impression of Change score, quality of life and Brief Pain Inventory questionnaire. Secondary experimental endpoints included cardiac vagal tone and heart rate. RESULTS No differences in pain scores were seen in response to two weeks transcutaneous vagal nerve stimulation as compared to sham treatment (difference in average pain score (visual analogue scale): 0.17, 95%CI (-0.86;1.20), P = 0.7). Similarly, no differences were seen for secondary clinical endpoints, except from an increase in the appetite loss score (13.9, 95%CI (0.5:27.3), P = 0.04). However, improvements in maximum pain scores were seen for transcutaneous vagal nerve stimulation and sham treatments as compared to their respective baselines: vagal nerve stimulation (-1.3±1.7, 95%CI (-2.21:-0.42), P = 0.007), sham (-1.3±1.9, 95%CI (-2.28:-0.25), P = 0.018). Finally, heart rate was decreased after two weeks transcutaneous vagal nerve stimulation in comparison to sham treatment (-3.7 beats/min, 95%CI (-6.7:-0.6), P = 0.02). CONCLUSION In this sham-controlled crossover study, we found no evidence that two weeks transcutaneous vagal nerve stimulation induces pain relief in patients with chronic pancreatitis. TRIAL REGISTRATION NUMBER The study is registered at NCT03357029; www.clinicaltrials.gov.
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Association between chronic psychoactive substances use and systemic inflammation: A systematic review and meta-analysis. Neurosci Biobehav Rev 2021; 125:208-220. [PMID: 33639179 DOI: 10.1016/j.neubiorev.2021.02.031] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 02/18/2021] [Accepted: 02/20/2021] [Indexed: 12/18/2022]
Abstract
This systematic review and meta-analysis assess the change in inflammation biomarkers level among chronic psychoactive substance users. To meet the required inclusion criteria, all studies had to describe human participants with an age ≥18y., experiencing chronic psychostimulant (nicotine, amphetamine, cocaine), sedative (benzodiazepine, opioids) and/or cannabinoid use. The comparison group was defined as healthy participants. Studies where included if they reported at least one of the pro/inflammatory biomarkers. Study bias was examined by Funnel plots and heterogeneity by computing the I2 statistics. Only 21 eligible studies were selected based on 26,216 study participants. A small and significant effect size of 0.18 mg/l (95 % CI:0.10-0.27) was detected in favour of chronic smokers (z = 4.33;P < 0.0001). There was evidence of publication bias for studies measuring IL-6 and IL-10 association with cocaine and IL-6 in association with cannabis. In summary, except for chronic tobacco users, there was no evidence of association between other chronic substances abuse and inflammatory levels. More studies are needed to inform policy and decision makers about the utility of anti-inflammatory based targeted intervention programmes.
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Peter AE, Sandeep BV, Rao BG, Kalpana VL. Calming the Storm: Natural Immunosuppressants as Adjuvants to Target the Cytokine Storm in COVID-19. Front Pharmacol 2021; 11:583777. [PMID: 33708109 PMCID: PMC7941276 DOI: 10.3389/fphar.2020.583777] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 12/09/2020] [Indexed: 12/15/2022] Open
Abstract
The COVID-19 pandemic has caused a global health crisis, with no specific antiviral to treat the infection and the absence of a suitable vaccine to prevent it. While some individuals contracting the SARS-CoV-2 infection exhibit a well coordinated immune response and recover, others display a dysfunctional immune response leading to serious complications including ARDS, sepsis, MOF; associated with morbidity and mortality. Studies revealed that in patients with a dysfunctional immune response, there is a massive cytokine and chemokine release, referred to as the ‘cytokine storm’. As a result, such patients exhibit higher levels of pro-inflammatory/modulatory cytokines and chemokines like TNFα, INFγ, IL-1β, IL-2, IL-4, IL-6, IL-7, IL-9, IL-10, IL-12, IL-13, IL-17, G-CSF, GM-CSF, MCSF, HGF and chemokines CXCL8, MCP1, IP10, MIP1α and MIP1β. Targeting this cytokine storm is a novel, promising treatment strategy to alleviate this excess influx of cytokines observed at the site of infection and their subsequent disastrous consequences. Natural immunosuppressant compounds, derived from plant sources like curcumin, luteolin, piperine, resveratrol are known to inhibit the production and release of pro-inflammatory cytokines and chemokines. This inhibitory effect is mediated by altering signal pathways like NF-κB, JAK/STAT, MAPK/ERK that are involved in the production and release of cytokines and chemokines. The use of these natural immunosuppressants as adjuvants to ameliorate the cytokine storm; in combination with antiviral agents and other treatment drugs currently in use presents a novel, synergistic approach for the treatment and effective cure of COVID-19. This review briefly describes the immunopathogenesis of the cytokine storm observed in SARS-CoV-2 infection and details some natural immunosuppressants that can be used as adjuvants in treating COVID-19 disease.
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Affiliation(s)
- Angela E Peter
- Department of Biotechnology, College of Science and Technology, Andhra University, Visakhapatnam, India
| | - B V Sandeep
- Department of Biotechnology, College of Science and Technology, Andhra University, Visakhapatnam, India
| | - B Ganga Rao
- Andhra University College of Pharmaceutical Sciences, Andhra University, Visakhapatnam, India
| | - V Lakshmi Kalpana
- Department of Human Genetics, College of Science and Technology, Andhra University, Visakhapatnam, India
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The effect of smoking on depressive symptoms. Addict Behav 2021; 112:106641. [PMID: 33010527 DOI: 10.1016/j.addbeh.2020.106641] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 08/30/2020] [Accepted: 08/31/2020] [Indexed: 12/30/2022]
Abstract
BACKGROUND People who smoke tend to report higher levels of psychological distress than those who do not smoke. However, studies suggest that smoking reduces many sub-dimensions of distress, including depressive symptoms. A negative (i.e. depression reducing) effect of smoking on depressive symptoms might be observed in survey panel data only after adjustment for the effect of depressive symptoms on smoking. Results from analyses that make that adjustment are presented within groups jointly defined by race and gender, and for all respondents in a representative sample of the U.S. POPULATION METHOD Reciprocal effects of smoking and depressive symptoms (DSx) are estimated with dynamic panel models. Data are from the Americans' Changing Lives study which assessed smoking and depressive symptoms five times over 25 years. Additional analyses provide estimates of effect of continuing to smoke versus quitting. RESULTS The estimated effect of smoking on DSx after adjustment for the simultaneous effect of DSx on smoking and unobserved confounders is negative among women. The estimated effect among men is not statistically significant, and no race difference is observed. CONCLUSIONS The tendency for smoking to reduce depressive symptoms among American women is masked in analyses that fail to account for the reciprocal effect of depressive symptoms on smoking.
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Zhang Y, Sevilla A, Weller R, Wang S, Gitlin MC, Candiotti KA. The role of α7-nicotinic acetylcholine receptor in a rat model of chronic nicotine-induced mechanical hypersensitivity. Neurosci Lett 2020; 743:135566. [PMID: 33352289 DOI: 10.1016/j.neulet.2020.135566] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 12/08/2020] [Accepted: 12/09/2020] [Indexed: 12/19/2022]
Abstract
Smokers have a higher incidence of chronic pain than non-smokers, but the neural mechanism is not yet fully understood. Nicotine is the main component of tobacco and acts as an agonist for nicotinic cholinergic receptors (nAChRs) in the nervous system. This study was approved by the IACUC of UM. The effects of chronic nicotine administration on mechanical sensitivity were studied using a rat model. The changes in the expression levels of the α7 isoform of nAChR (α7-nAChR), inflammatory cytokines TNFα and COX-2, as well as the density of neuro-immune cells (astrocytes and microglia) were measured concurrently. The results indicate that long-term nicotine administration induces hypersensitivity to mechanical stimuli, as demonstrated by a significant reduction in the pain perception threshold. In response to nicotine, the expression levels of α7-nAChR increased in the periaqueductal gray matter (PAG) and decreased in the spinal cord. Acute administration of the selective α7-nAChR agonist CDP-Choline reversed this hypersensitivity. Chronic nicotine administration led to an increase of microglial cells in the dorsal horn of the spinal cord and increased expression levels of the cytokines TNFα and COX-2. This study suggests that decreased α7-nAChR expression in the spinal cord, as a result of long-term exposure to nicotine, may be causatively linked to chronic pain. Simultaneously, the increase of neuro-immune factors in the spinal cord is also a potential factor leading to chronic pain.
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Affiliation(s)
- Yanping Zhang
- Department of Anesthesiology, Perioperative Medicine and Pain Management, University of Miami Miller School of Medicine, USA.
| | - Alec Sevilla
- Department of Anesthesiology, Perioperative Medicine and Pain Management, University of Miami Miller School of Medicine, USA
| | - Robert Weller
- Department of Anesthesiology, Perioperative Medicine and Pain Management, University of Miami Miller School of Medicine, USA
| | - Shuju Wang
- Hubei University of Chinese Medicine, Wuhan, Hubei, China
| | - Melvin C Gitlin
- Department of Anesthesiology, Perioperative Medicine and Pain Management, University of Miami Miller School of Medicine, USA
| | - Keith A Candiotti
- Department of Anesthesiology, Perioperative Medicine and Pain Management, University of Miami Miller School of Medicine, USA.
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Voinsky I, Gurwitz D. Smoking and COVID-19: Similar bronchial ACE2 and TMPRSS2 expression and higher TMPRSS4 expression in current versus never smokers. Drug Dev Res 2020; 81:1073-1080. [PMID: 32757420 PMCID: PMC7436865 DOI: 10.1002/ddr.21729] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 07/14/2020] [Accepted: 07/15/2020] [Indexed: 02/06/2023]
Abstract
Uncertainties remain concerning the pathophysiology, epidemiology, and potential therapeutics for COVID-19. Among unsettled controversies is whether tobacco smoking increases or protects from severe COVID-19. Several epidemiological studies reported reduced COVID-19 hospitalizations among smokers, while other studies reported the opposite trend. Some authors assumed that smokers have elevated airway expression of ACE2, the cell recognition site of the SARS-Cov-2 spike protein, but this suggestion remains unverified. We therefore performed data mining of two independent NCBI GEO genome-wide RNA expression files (GSE7894 and GSE994) and report that in both data sets, current smokers and never smokers have, on average, closely similar bronchial epithelial cell mRNA levels of ACE2, as well as TMPRSS2, coding for a serine protease priming SARS-Cov-2 for cell entry, and ADAM17, coding for a protease implicated in ACE2 membrane shedding. In contrast, the expression levels of TMPRSS4, coding for a protease that primes SARS-CoV-2 for cell entry similarly to TMPRSS2, were elevated in bronchial epithelial cells from current smokers compared with never smokers, suggesting that higher bronchial TMPRSS4 levels in smokers might put them at higher SARS-Cov-2 infection risk. The effects of smoking on COVID-19 severity need clarification with larger studies. Additionally, the postulated protective effects of nicotine and nitric oxide, which may presumably reduce the risk of a "cytokine storm" in infected individuals, deserve assessment by controlled clinical trials.
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Affiliation(s)
- Irena Voinsky
- Department of Human Molecular Genetics and BiochemistrySackler Faculty of Medicine, Tel Aviv UniversityTel AvivIsrael
| | - David Gurwitz
- Department of Human Molecular Genetics and BiochemistrySackler Faculty of Medicine, Tel Aviv UniversityTel AvivIsrael
- Sagol School of NeuroscienceTel Aviv UniversityTel AvivIsrael
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Münzel T, Hahad O, Kuntic M, Keaney JF, Deanfield JE, Daiber A. Effects of tobacco cigarettes, e-cigarettes, and waterpipe smoking on endothelial function and clinical outcomes. Eur Heart J 2020; 41:4057-4070. [PMID: 32585699 PMCID: PMC7454514 DOI: 10.1093/eurheartj/ehaa460] [Citation(s) in RCA: 157] [Impact Index Per Article: 39.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 04/24/2020] [Accepted: 05/14/2020] [Indexed: 12/13/2022] Open
Abstract
Tobacco smoking is a leading cause of non-communicable disease globally and is a major risk factor for cardiovascular disease (CVD) and lung disease. Importantly, recent data by the World Health Organizations (WHO) indicate that in the last two decades global tobacco use has significantly dropped, which was largely driven by decreased numbers of female smokers. Despite such advances, the use of e-cigarettes and waterpipes (shisha, hookah, narghile) is an emerging trend, especially among younger generations. There is growing body of evidence that e-cigarettes are not a harm-free alternative to tobacco cigarettes and there is considerable debate as to whether e-cigarettes are saving smokers or generating new addicts. Here, we provide an updated overview of the impact of tobacco/waterpipe (shisha) smoking and e-cigarette vaping on endothelial function, a biomarker for early, subclinical, atherosclerosis from human and animal studies. Also their emerging adverse effects on the proteome, transcriptome, epigenome, microbiome, and the circadian clock are summarized. We briefly discuss heat-not-burn tobacco products and their cardiovascular health effects. We discuss the impact of the toxic constituents of these products on endothelial function and subsequent CVD and we also provide an update on current recommendations, regulation and advertising with focus on the USA and Europe. As outlined by the WHO, tobacco cigarette, waterpipe, and e-cigarette smoking/vaping may contribute to an increased burden of symptoms due to coronavirus disease 2019 (COVID-19) and to severe health consequences.
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Affiliation(s)
- Thomas Münzel
- Center for Cardiology-Cardiology I, University Medical Center of the Johannes Gutenberg-University Mainz, Langenbeckstraße 1, 55131 Mainz, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Rhine-Main, Langenbeckstraße 1, 55131 Mainz, Germany
| | - Omar Hahad
- Center for Cardiology-Cardiology I, University Medical Center of the Johannes Gutenberg-University Mainz, Langenbeckstraße 1, 55131 Mainz, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Rhine-Main, Langenbeckstraße 1, 55131 Mainz, Germany
| | - Marin Kuntic
- Center for Cardiology-Cardiology I, University Medical Center of the Johannes Gutenberg-University Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
| | - John F Keaney
- Division of Cardiovascular Medicine, University of Massachusetts Medical School, 55 Lake Avenue North, Worcester, MA 01655, USA
| | - John E Deanfield
- Institute of Cardiovascular Science, University College London, 1 St Martin's le Grand, London EC1A 4NP, UK
| | - Andreas Daiber
- Center for Cardiology-Cardiology I, University Medical Center of the Johannes Gutenberg-University Mainz, Langenbeckstraße 1, 55131 Mainz, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Rhine-Main, Langenbeckstraße 1, 55131 Mainz, Germany
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Addressing the challenges of E-cigarette safety profiling by assessment of pulmonary toxicological response in bronchial and alveolar mucosa models. Sci Rep 2020; 10:20460. [PMID: 33235237 PMCID: PMC7686373 DOI: 10.1038/s41598-020-77452-w] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 11/09/2020] [Indexed: 12/19/2022] Open
Abstract
Limited toxicity data on electronic cigarette (ECIG) impede evidence-based policy recommendations. We compared two popular mixed fruit flavored ECIG-liquids with and without nicotine aerosolized at 40 W (E-smoke) with respect to particle number concentrations, chemical composition, and response on physiologically relevant human bronchial and alveolar lung mucosa models cultured at air–liquid interface. E-smoke was characterized by significantly increased particle number concentrations with increased wattage (25, 40, and 55 W) and nicotine presence. The chemical composition of E-smoke differed across the two tested flavors in terms of cytotoxic compounds including p-benzoquinone, nicotyrine, and flavoring agents (for example vanillin, ethyl vanillin). Significant differences in the expression of markers for pro-inflammation, oxidative stress, tissue injury/repair, alarm anti-protease, anti-microbial defense, epithelial barrier function, and epigenetic modification were observed between the flavors, nicotine content, and/ or lung models (bronchial or alveolar). Our findings indicate that ECIG toxicity is influenced by combination of multiple factors including flavor, nicotine content, vaping regime, and the region of respiratory tree (bronchial or alveolar). Toxic chemicals and flavoring agents detected in high concentrations in the E-smoke of each flavor warrant independent evaluation for their specific role in imparting toxicity. Therefore, multi-disciplinary approaches are warranted for comprehensive safety profiling of ECIG.
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McCarthy M, Raval AP. The peri-menopause in a woman's life: a systemic inflammatory phase that enables later neurodegenerative disease. J Neuroinflammation 2020; 17:317. [PMID: 33097048 PMCID: PMC7585188 DOI: 10.1186/s12974-020-01998-9] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 10/14/2020] [Indexed: 02/08/2023] Open
Abstract
The peri-menopause or menopausal transition—the time period that surrounds the final years of a woman’s reproductive life—is associated with profound reproductive and hormonal changes in a woman’s body and exponentially increases a woman’s risk of cerebral ischemia and Alzheimer’s disease. Although our understanding of the exact timeline or definition of peri-menopause is limited, it is clear that there are two stages to the peri-menopause. These are the early menopausal transition, where menstrual cycles are mostly regular, with relatively few interruptions, and the late transition, where amenorrhea becomes more prolonged and lasts for at least 60 days, up to the final menstrual period. Emerging evidence is showing that peri-menopause is pro-inflammatory and disrupts estrogen-regulated neurological systems. Estrogen is a master regulator that functions through a network of estrogen receptors subtypes alpha (ER-α) and beta (ER-β). Estrogen receptor-beta has been shown to regulate a key component of the innate immune response known as the inflammasome, and it also is involved in regulation of neuronal mitochondrial function. This review will present an overview of the menopausal transition as an inflammatory event, with associated systemic and central nervous system inflammation, plus regulation of the innate immune response by ER-β-mediated mechanisms.
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Affiliation(s)
- Micheline McCarthy
- Department of Neurology, Leonard M. Miller School of Medicine, University of Miami, Miami, FL, 33136, USA
| | - Ami P Raval
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratory, Leonard M. Miller School of Medicine, University of Miami, 1420 NW 9th Avenue, Neurology Research Building, Room # 203H, Miami, FL, 33136, USA. .,Department of Neurology, Leonard M. Miller School of Medicine, University of Miami, Miami, FL, 33136, USA.
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42
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Elsonbaty SM, Ismail AFM. Nicotine encourages oxidative stress and impairment of rats' brain mitigated by Spirulina platensis lipopolysaccharides and low-dose ionizing radiation. Arch Biochem Biophys 2020; 689:108382. [PMID: 32343976 DOI: 10.1016/j.abb.2020.108382] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2020] [Revised: 04/04/2020] [Accepted: 04/17/2020] [Indexed: 12/20/2022]
Abstract
Nicotine is a psychoactive alkaloid of tobacco, which is ingested during cigarettes or electronic cigarette smoking. Extensive consumption of nicotine induced oxidative stress. Accordingly, it is implicated in many pathophysiology brain disorders and triggers neurodegeneration. In this study, we investigated the protective role of Spirulina platensis-lipopolysaccharides (S.LPS) and the low dose-ionizing radiation (LD-IR) against the induced neurotoxicity in the rats' brain due to the prolonged administration of high nicotine levels. Rats treated with nicotine for two months showed alterations in the oxidative stress markers (malondialdehyde (MDA), reduced glutathione (GSH) and oxidized glutathione disulfide (GSSG)), antioxidant enzymes (superoxide dismutase (SOD), catalase (Cat), glutathione enzymes (GPx and GST)) as well as several pro-inflammatory markers (Tumor Necrosis Factor-alpha (TNF-α), Interleukin-17 (IL-17), and Nuclear Factor-kappa B (NF-κB)), and induced apoptosis through Caspase-3 activity. Nicotine also upregulated the mRNA gene expression of cytochrome P450 enzymes (CYP2B1 and CYP2E1), Cyclin-dependent kinase 5 (CDK5), Toll-Like Receptor 4 (TLR4), and phospho-Tau (p-Tau) protein expression. Besides, it downregulated the alpha-7 nicotinic receptor (α7nAChR) mRNA gene expression accompanied by a decline in the calcium (Ca2+) level. S.LPS exhibited antioxidant, anti-inflammatory, anti-apoptotic and neuroprotective activities, which counteracting the detrimental effects of chronic nicotine administration. LD-IR demonstrated comparable effects to S.LPS. Exposure of rats to LD-IR enhanced the neuroprotective effects of S.LPS against nicotine toxicity. The light microscopic examination of the brain tissues was in agreement with the biochemical investigations. These findings display that S.LPS and LD-IR mitigated the oxidative stress and the impairment of rats' brain induced by nicotine, due to regulation of the mRNA gene expression of cytochrome P450 enzymes (CYP2B1 and CYP2E1) and the signaling pathway of Tau protein phosphorylation.
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Affiliation(s)
- Sawsan M Elsonbaty
- Radiation Microbiology Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Ahmed El-Zomor St. 3, El-Zohoor Dist., Nasr City, 11787, Cairo, Egypt
| | - Amel F M Ismail
- Drug Radiation Research Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Ahmed El-Zomor St. 3, El-Zohoor Dist., Nasr City, 11787, Cairo, Egypt.
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Tsai KYF, Hirschi Budge KM, Lepre AP, Rhees MS, Ajdaharian J, Geiler J, Epperson DG, Astle KJ, Winden DR, Arroyo JA, Reynolds PR. Cell invasion, RAGE expression, and inflammation in oral squamous cell carcinoma (OSCC) cells exposed to e-cigarette flavoring. Clin Exp Dent Res 2020; 6:618-625. [PMID: 32783323 PMCID: PMC7745078 DOI: 10.1002/cre2.314] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 07/01/2020] [Accepted: 07/05/2020] [Indexed: 12/24/2022] Open
Abstract
Objective Electronic cigarettes have given rise to a new, largely unregulated market within the smoking industry. While generally supposed to be less harmful than traditional tobacco smoke, awareness of the biological effects of electronic cigarette liquid is still scarce. Our objective was to determine the impact of electronic cigarette flavoring and nicotine on gingival squamous cell carcinoma invasion, RAGE expression, and the elaboration of pro‐inflammatory molecules. Methods and Materials Gingival and tongue squamous cell carcinoma cells were exposed to Red Hot or Green Apple flavored electronic cigarette flavoring with or without nicotine. Immunofluorescence determined RAGE expression. Real‐time cellular invasion was assessed using a RTCA DP instrument. Culture medium was assayed for cytokine secretion. Results Compared to controls we observed: increased cell invasion in gingival cells with Red Hot electronic cigarette flavoring and decreased cell invasion with Green Apple; decreased cell invasion in tongue cells treated with Red Hot electronic cigarette flavoring and no differences in invasion with Green Apple; flavor and nicotine dependent increases in RAGE expression; and differential expression of IL‐1α, IL‐8, and MMP‐13. Conclusion We conclude that electronic cigarette flavoring and nicotine orchestrate differential regulation of oral squamous cell carcinoma (OSCC) cell invasion and inflammatory effects. This study provides an important initial step in dissecting RAGE‐mediated mechanisms of cancerous invasion and molecular avenues employed by OSCC.
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Affiliation(s)
- Kary Y F Tsai
- Lung and Placenta Research Laboratory, Department of Physiology and Developmental Biology, Brigham Young University, Provo, Utah, USA
| | - Kelsey M Hirschi Budge
- Lung and Placenta Research Laboratory, Department of Physiology and Developmental Biology, Brigham Young University, Provo, Utah, USA
| | - Anthony P Lepre
- College of Dental Medicine, Roseman University of Health Sciences, South Jordan, Utah, USA
| | - Michael S Rhees
- College of Dental Medicine, Roseman University of Health Sciences, South Jordan, Utah, USA
| | - Janet Ajdaharian
- College of Dental Medicine, Roseman University of Health Sciences, South Jordan, Utah, USA
| | - Jordy Geiler
- College of Dental Medicine, Roseman University of Health Sciences, South Jordan, Utah, USA
| | - Daniel G Epperson
- College of Dental Medicine, Roseman University of Health Sciences, South Jordan, Utah, USA
| | - Kolten J Astle
- College of Dental Medicine, Roseman University of Health Sciences, South Jordan, Utah, USA
| | - Duane R Winden
- College of Dental Medicine, Roseman University of Health Sciences, South Jordan, Utah, USA
| | - Juan A Arroyo
- Lung and Placenta Research Laboratory, Department of Physiology and Developmental Biology, Brigham Young University, Provo, Utah, USA
| | - Paul R Reynolds
- Lung and Placenta Research Laboratory, Department of Physiology and Developmental Biology, Brigham Young University, Provo, Utah, USA
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Chen H, Li G, Allam VSRR, Wang B, Chan YL, Scarfo C, Ueland M, Shimmon R, Fu S, Foster P, Oliver BG. Evidence from a mouse model on the dangers of thirdhand electronic cigarette exposure during early life. ERJ Open Res 2020; 6:00022-2020. [PMID: 32337216 PMCID: PMC7167212 DOI: 10.1183/23120541.00022-2020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 02/28/2020] [Indexed: 11/29/2022] Open
Abstract
Electronic cigarettes (e-cigarettes) have been used in many countries for >10 years and in this time, there has been a division of opinions amongst both the general public and health professionals regarding the benefit or harms of e-cigarettes. Prior to the reporting of a new phenomenon known as vaping-associated pulmonary injury (VAPI), public opinion about the relative harm of e-cigarettes were increasing but they were perceived as less harmful than cigarettes by one third of people [1]. The recent cases of severe illness and death attributable to VAPI were first described in September 2019 [2]. VAPI appears to be related to either the addition of cannabis/cannabis derivates or vitamin E acetate [3], and as such has not caused radical swing away from the use of e-cigarettes without cannabis or cannabis derivates. Thirdhand exposure to e-cigarette residue is likely to have harmful effects in childrenhttp://bit.ly/38a2umw
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Affiliation(s)
- Hui Chen
- School of Life Sciences, University of Technology Sydney, Sydney, Australia.,These authors contributed equally
| | - Gerard Li
- School of Life Sciences, University of Technology Sydney, Sydney, Australia.,These authors contributed equally
| | - Venkata Sita Rama Raju Allam
- School of Life Sciences, University of Technology Sydney, Sydney, Australia.,Respiratory Cellular and Molecular Biology, Woolcock Institute of Medical Research, University of Sydney, Sydney, Australia
| | - Baoming Wang
- School of Life Sciences, University of Technology Sydney, Sydney, Australia.,Respiratory Cellular and Molecular Biology, Woolcock Institute of Medical Research, University of Sydney, Sydney, Australia
| | - Yik Lung Chan
- School of Life Sciences, University of Technology Sydney, Sydney, Australia.,Respiratory Cellular and Molecular Biology, Woolcock Institute of Medical Research, University of Sydney, Sydney, Australia
| | - Claudia Scarfo
- School of Mathematical and Physical Sciences, University of Technology Sydney, Sydney, Australia
| | - Maiken Ueland
- School of Mathematical and Physical Sciences, University of Technology Sydney, Sydney, Australia
| | - Ronald Shimmon
- School of Mathematical and Physical Sciences, University of Technology Sydney, Sydney, Australia
| | - Shanlin Fu
- School of Life Sciences, University of Technology Sydney, Sydney, Australia
| | - Paul Foster
- School of Biomedical Sciences and Pharmacy, University of Newcastle, Newcastle, Australia
| | - Brian G Oliver
- School of Life Sciences, University of Technology Sydney, Sydney, Australia.,Respiratory Cellular and Molecular Biology, Woolcock Institute of Medical Research, University of Sydney, Sydney, Australia
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45
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Church JS, Chace-Donahue F, Blum JL, Ratner JR, Zelikoff JT, Schwartzer JJ. Neuroinflammatory and Behavioral Outcomes Measured in Adult Offspring of Mice Exposed Prenatally to E-Cigarette Aerosols. ENVIRONMENTAL HEALTH PERSPECTIVES 2020; 128:47006. [PMID: 32293200 PMCID: PMC7228099 DOI: 10.1289/ehp6067] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
BACKGROUND In an effort to decrease the rates of smoking conventional tobacco cigarettes, electronic cigarettes (e-cigarettes) have been proposed as an effective smoking cessation tool. However, little is known about their toxicological impacts. This is concerning given that e-cigarette use is perceived as less harmful than conventional tobacco cigarettes during pregnancy for both the mother and fetus. OBJECTIVE The goal of this study was to test the neurodevelopmental consequences of maternal e-cigarette use on adult offspring behavior and neuroimmune outcomes. METHODS Pregnant female CD-1 mice were randomly assigned to one of three treatment groups (n=8-10 per group) and exposed daily to either filtered air, propylene glycol and vegetable glycerol (50:50 PG/VG vehicle), or to PG/VG with 16mg/mL nicotine (+Nic). Whole-body exposures were carried out for 3 h/d, 7 d/week, from gestational day (GD)0.5 until GD17.5. Adult male and female offspring (8 weeks old) were assessed across a battery of behavioral assessments followed by region-specific quantification of brain cytokines using multiplex immunoassays. RESULTS Adult offspring of both sexes exposed to +Nic exhibited elevated locomotor activity in the elevated plus maze and altered stress-coping strategies in the forced swim task. Moreover, male and female offspring exposed to PG/VG with and without nicotine had a 5.2% lower object discrimination score in the novel object recognition task. In addition to differences in offspring behavior, maternal e-cigarette exposure with nicotine led to a reduction in interleukin (IL)-4 and interferon-gamma (IFNγ) in the diencephalon, as well as lower levels of hippocampal IFNγ (females only). E-cigarette exposure without nicotine resulted in a 2-fold increase of IL-6 in the cerebellum. DISCUSSION These findings support previous adverse findings of e-cigarette exposure on neurodevelopment in a mouse model and provide substantial evidence of persistent adverse behavioral and neuroimmunological consequences to adult offspring following maternal e-cigarette exposure during pregnancy. https://doi.org/10.1289/EHP6067.
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Affiliation(s)
- Jamie S. Church
- Program in Neuroscience and Behavior, Department of Psychology and Education, Mount Holyoke College, South Hadley, Massachusetts, USA
| | - Fiona Chace-Donahue
- Program in Neuroscience and Behavior, Department of Psychology and Education, Mount Holyoke College, South Hadley, Massachusetts, USA
| | - Jason L. Blum
- Department of Environmental Medicine, New York University School of Medicine, New York, New York, USA
| | - Jill R. Ratner
- Department of Environmental Medicine, New York University School of Medicine, New York, New York, USA
| | - Judith T. Zelikoff
- Department of Environmental Medicine, New York University School of Medicine, New York, New York, USA
| | - Jared J. Schwartzer
- Program in Neuroscience and Behavior, Department of Psychology and Education, Mount Holyoke College, South Hadley, Massachusetts, USA
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46
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Matsuo R, Ago T, Kiyuna F, Sato N, Nakamura K, Kuroda J, Wakisaka Y, Kitazono T. Smoking Status and Functional Outcomes After Acute Ischemic Stroke. Stroke 2020; 51:846-852. [DOI: 10.1161/strokeaha.119.027230] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Background and Purpose—
Smoking is an established risk factor for stroke; however, it is uncertain whether prestroke smoking status affects clinical outcomes of acute ischemic stroke. This study aimed to elucidate the association between smoking status and functional outcomes after acute ischemic stroke.
Methods—
Using a multicenter hospital-based stroke registry in Japan, we investigated 10 825 patients with acute ischemic stroke hospitalized between July 2007 and December 2017 who had been independent before stroke onset. Smoking status was categorized into those who had never smoked (nonsmokers), former smokers, and current smokers. Clinical outcomes included poor functional outcome (modified Rankin Scale score ≥2) and functional dependence (modified Rankin Scale score 2–5) at 3 months. We adjusted for potential confounding factors using a logistic regression analysis.
Results—
The mean age of patients was 70.2±12.2 years, and 37.0% were women. There were 4396 (42.7%) nonsmokers, 3328 (32.4%) former smokers, and 2561 (24.9%) current smokers. The odds ratio (95% CI) for poor functional outcome after adjusting for confounders increased in current smokers (1.29 [1.11–1.49] versus nonsmokers) but not in former smokers (1.05 [0.92–1.21] versus nonsmokers). However, among the former smokers, the odds ratio of poor functional outcome was higher in those who quit smoking within 2 years of stroke onset (1.75 [1.15–2.66] versus nonsmokers). The risk of poor functional outcome tended to increase as the number of daily cigarettes increased in current smokers (
P
for trend=0.002). All these associations were maintained for functional dependence.
Conclusions—
Current and recent smoking is associated with an increased risk of unfavorable functional outcomes at 3 months after acute ischemic stroke.
Registration—
URL:
http://www.fukuoka-stroke.net/english/index.html
. Unique identifier: 000000800.
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Affiliation(s)
- Ryu Matsuo
- From the Department of Medicine and Clinical Science, Kyushu University, Fukuoka, Japan. (R.M., T.A., F.K., N.S., K.N., J.K., Y.W., T.K.)
- Department of Health Care Administration and Management, Kyushu University, Fukuoka, Japan. (R.M., F.K., N.S.)
| | - Tetsuro Ago
- From the Department of Medicine and Clinical Science, Kyushu University, Fukuoka, Japan. (R.M., T.A., F.K., N.S., K.N., J.K., Y.W., T.K.)
| | - Fumi Kiyuna
- From the Department of Medicine and Clinical Science, Kyushu University, Fukuoka, Japan. (R.M., T.A., F.K., N.S., K.N., J.K., Y.W., T.K.)
- Department of Health Care Administration and Management, Kyushu University, Fukuoka, Japan. (R.M., F.K., N.S.)
| | - Noriko Sato
- From the Department of Medicine and Clinical Science, Kyushu University, Fukuoka, Japan. (R.M., T.A., F.K., N.S., K.N., J.K., Y.W., T.K.)
- Department of Health Care Administration and Management, Kyushu University, Fukuoka, Japan. (R.M., F.K., N.S.)
| | - Kuniyuki Nakamura
- From the Department of Medicine and Clinical Science, Kyushu University, Fukuoka, Japan. (R.M., T.A., F.K., N.S., K.N., J.K., Y.W., T.K.)
| | - Junya Kuroda
- From the Department of Medicine and Clinical Science, Kyushu University, Fukuoka, Japan. (R.M., T.A., F.K., N.S., K.N., J.K., Y.W., T.K.)
| | - Yoshinobu Wakisaka
- From the Department of Medicine and Clinical Science, Kyushu University, Fukuoka, Japan. (R.M., T.A., F.K., N.S., K.N., J.K., Y.W., T.K.)
| | - Takanari Kitazono
- From the Department of Medicine and Clinical Science, Kyushu University, Fukuoka, Japan. (R.M., T.A., F.K., N.S., K.N., J.K., Y.W., T.K.)
- Center for Cohort Studies, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan. (T.K.)
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47
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Subedi L, Lee SE, Madiha S, Gaire BP, Jin M, Yumnam S, Kim SY. Phytochemicals against TNFα-Mediated Neuroinflammatory Diseases. Int J Mol Sci 2020; 21:ijms21030764. [PMID: 31991572 PMCID: PMC7037901 DOI: 10.3390/ijms21030764] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 01/20/2020] [Accepted: 01/21/2020] [Indexed: 02/07/2023] Open
Abstract
Tumor necrosis factor-alpha (TNF-α) is a well-known pro-inflammatory cytokine responsible for the modulation of the immune system. TNF-α plays a critical role in almost every type of inflammatory disorder, including central nervous system (CNS) diseases. Although TNF-α is a well-studied component of inflammatory responses, its functioning in diverse cell types is still unclear. TNF-α functions through its two main receptors: tumor necrosis factor receptor 1 and 2 (TNFR1, TNFR2), also known as p55 and p75, respectively. Normally, the functions of soluble TNF-α-induced TNFR1 activation are reported to be pro-inflammatory and apoptotic. While TNF-α mediated TNFR2 activation has a dual role. Several synthetic drugs used as inhibitors of TNF-α for diverse inflammatory diseases possess serious adverse effects, which make patients and researchers turn their focus toward natural medicines, phytochemicals in particular. Phytochemicals targeting TNF-α can significantly improve disease conditions involving TNF-α with fewer side effects. Here, we reviewed known TNF-α inhibitors, as well as lately studied phytochemicals, with a role in inhibiting TNF-α itself, and TNF-α-mediated signaling in inflammatory diseases focusing mainly on CNS disorders.
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Affiliation(s)
- Lalita Subedi
- College of Pharmacy, Gachon University, #191, Hambakmoero, Yeonsu-gu, Incheon 21936, Korea; (L.S.); (S.E.L.); (B.P.G.)
| | - Si Eun Lee
- College of Pharmacy, Gachon University, #191, Hambakmoero, Yeonsu-gu, Incheon 21936, Korea; (L.S.); (S.E.L.); (B.P.G.)
| | - Syeda Madiha
- Neurochemistry and Biochemical Neuropharmacology Research Unit, Department of Biochemistry, University of Karachi, Karachi-75270, Pakistan;
| | - Bhakta Prasad Gaire
- College of Pharmacy, Gachon University, #191, Hambakmoero, Yeonsu-gu, Incheon 21936, Korea; (L.S.); (S.E.L.); (B.P.G.)
| | - Mirim Jin
- College of Medicine and Department of Health Science and Technology, GAIHST, Gachon University #155, Gaebeol-ro, Yeonsu-gu, Incheon 21999, Korea;
| | - Silvia Yumnam
- College of Pharmacy, Gachon University, #191, Hambakmoero, Yeonsu-gu, Incheon 21936, Korea; (L.S.); (S.E.L.); (B.P.G.)
- Correspondence: (S.Y.); (S.Y.K.); Tel.: +82-32-820-4931 (S.Y. & S.Y.K.); Fax: +82-32-820-4932 (S.Y. & S.Y.K.)
| | - Sun Yeou Kim
- College of Pharmacy, Gachon University, #191, Hambakmoero, Yeonsu-gu, Incheon 21936, Korea; (L.S.); (S.E.L.); (B.P.G.)
- Correspondence: (S.Y.); (S.Y.K.); Tel.: +82-32-820-4931 (S.Y. & S.Y.K.); Fax: +82-32-820-4932 (S.Y. & S.Y.K.)
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48
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Liu Q, Li M, Whiteaker P, Shi FD, Morley BJ, Lukas RJ. Attenuation in Nicotinic Acetylcholine Receptor α9 and α10 Subunit Double Knock-Out Mice of Experimental Autoimmune Encephalomyelitis. Biomolecules 2019; 9:E827. [PMID: 31817275 PMCID: PMC6995583 DOI: 10.3390/biom9120827] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 11/15/2019] [Accepted: 11/24/2019] [Indexed: 12/30/2022] Open
Abstract
Experimental autoimmune encephalomyelitis (EAE) is attenuated in nicotinic acetylcholine receptor (nAChR) α9 subunit knock-out (α9 KO) mice. However, protection is incomplete, raising questions about roles for related, nAChR α10 subunits in ionotropic or recently-revealed metabotropic contributions to effects. Here, we demonstrate reduced EAE severity and delayed onset of disease signs in nAChR α9/α10 subunit double knock-out (DKO) animals relative to effects in wild-type (WT) control mice. These effects are indistinguishable from contemporaneously-observed effects in nicotine-treated WT or in α9 KO mice. Immune cell infiltration into the spinal cord and brain, reactive oxygen species levels in vivo, and demyelination, mostly in the spinal cord, are reduced in DKO mice. Disease severity is not altered relative to WT controls in mice harboring a gain-of-function mutation in α9 subunits. These findings minimize the likelihood that additional deletion of nAChR α10 subunits impacts disease differently than α9 KO alone, whether through ionotropic, metabotropic, or alternative mechanisms. Moreover, our results provide further evidence of disease-exacerbating roles for nAChR containing α9 subunits (α9*-nAChR) in EAE inflammatory and autoimmune responses. This supports our hypothesis that α9*-nAChR or their downstream mediators are attractive targets for attenuation of inflammation and autoimmunity.
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Affiliation(s)
- Qiang Liu
- Division of Neurobiology, Barrow Neurological Institute, Phoenix, AZ 85013, USA; (Q.L.); (M.L.); (P.W.); (F.-D.S.)
| | - Minshu Li
- Division of Neurobiology, Barrow Neurological Institute, Phoenix, AZ 85013, USA; (Q.L.); (M.L.); (P.W.); (F.-D.S.)
| | - Paul Whiteaker
- Division of Neurobiology, Barrow Neurological Institute, Phoenix, AZ 85013, USA; (Q.L.); (M.L.); (P.W.); (F.-D.S.)
| | - Fu-Dong Shi
- Division of Neurobiology, Barrow Neurological Institute, Phoenix, AZ 85013, USA; (Q.L.); (M.L.); (P.W.); (F.-D.S.)
| | | | - Ronald J. Lukas
- Division of Neurobiology, Barrow Neurological Institute, Phoenix, AZ 85013, USA; (Q.L.); (M.L.); (P.W.); (F.-D.S.)
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49
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Chan YL, Oliver BG, Chen H. What lessons have we learnt about the impact of maternal cigarette smoking from animal models? Clin Exp Pharmacol Physiol 2019; 47:337-344. [PMID: 31556137 DOI: 10.1111/1440-1681.13182] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 09/04/2019] [Accepted: 09/18/2019] [Indexed: 12/17/2022]
Abstract
Maternal first- or second-hand tobacco smoking during pregnancy is still common albeit that the detrimental effects to the unborn child are well known. Maternal tobacco cigarette smoking can affect multiple organ systems in the offspring, rendering them at increased risk of various conditions throughout life (eg. intrauterine underdevelopment, asthma, substance abuse, diabetes). However, this review will only focus on its impact on the brain and the related molecular changes in the offspring based on evidence from animal studies. Although epidemiological studies have identified the associations between maternal cigarette smoke exposure (SE) and brain disorders, animal models can help identify the underlying mechanisms and test interventions. Human studies have found that maternal SE is closely linked to small brain size and changes in brain structure and associated with a high risk of cognitive defects. Animal models suggest that this may be due to increased brain oxidative stress and inflammation during the neonatal period, leading to increased brain cell apoptosis in adulthood. There is a distinct gender bias of such impacts, where male offspring are more affected than females. Female offspring seem to have developed the adaptation by increasing endogenous antioxidant levels. Indeed, animal studies have shown that using antioxidant supplementation during pregnancy can improve neurological outcomes in male offspring, however, the efficacy in humans is yet to be confirmed. Furthermore, some animal studies suggested nicotine as the key player in intrauterine underdevelopment due to maternal SE, while human clinical trials using nicotine replacement therapy do not support this mechanism. This review will discuss the possible reasons.
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Affiliation(s)
- Yik L Chan
- School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, Australia.,Respiratory Cellular and Molecular Biology, Woolcock Institute of Medical Research, Sydney, Australia
| | - Brian G Oliver
- School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, Australia.,Respiratory Cellular and Molecular Biology, Woolcock Institute of Medical Research, Sydney, Australia
| | - Hui Chen
- School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, Australia.,Faculty of Basic Medical Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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50
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Modeling drug exposure in rodents using e-cigarettes and other electronic nicotine delivery systems. J Neurosci Methods 2019; 330:108458. [PMID: 31614162 DOI: 10.1016/j.jneumeth.2019.108458] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Revised: 10/05/2019] [Accepted: 10/06/2019] [Indexed: 12/25/2022]
Abstract
Smoking tobacco products is the leading cause of preventable death worldwide. Coordinated efforts have successfully reduced tobacco cigarette smoking in the United States; however, electronic cigarettes (e-cigarette) and other electronic nicotine delivery systems (ENDS) recently have replaced traditional cigarettes for many users. While the clinical risks associated with long-term ENDS use remain unclear, advancements in preclinical rodent models will enhance our understanding of their overall health effects. This review examines the peripheral and central effects of ENDS-mediated exposure to nicotine and other drugs of abuse in rodents and evaluates current techniques for implementing ENDS in preclinical research.
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