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Cyna W, Wojciechowska A, Szybiak-Skora W, Lacka K. The Impact of Environmental Factors on the Development of Autoimmune Thyroiditis-Review. Biomedicines 2024; 12:1788. [PMID: 39200253 PMCID: PMC11351723 DOI: 10.3390/biomedicines12081788] [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: 07/13/2024] [Revised: 07/29/2024] [Accepted: 07/31/2024] [Indexed: 09/02/2024] Open
Abstract
Autoimmune thyroiditis (Hashimoto's thyroiditis) is the most common autoimmune disease. It most often manifests itself as hypothyroidism but may also present with euthyroidism or even hyperthyroidism. The etiopathogenesis of autoimmune thyroiditis is still unclear. However, in addition to genetic and epigenetic factors, many environmental factors are known to increase the risk of developing AIT. In this review, we aimed to collect and analyze data connected with environmental factors and autoimmune thyroiditis development. Our review indicates iodine intake, vitamin D deficiency, selenium deficiency, viral infections caused by Epstein-Barr Virus (EBV), Human parvovirus B19 (PVB19), Human herpesvirus 6A (HHV-6A) and Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), bacterial infection caused by Helicobacter pylori, microbiome disruption, medications such as interferon-alpha and tyrosine kinase inhibitors, as well as stress, climate, and smoking can influence the risk of the occurrence of autoimmune thyroiditis. Having knowledge of risk factors allows for making changes to one's diet and lifestyle that will reduce the risk of developing the disease and alleviate the course of autoimmune thyroiditis.
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Affiliation(s)
- Wojciech Cyna
- Student’s Scientific Society, Endocrinology Section at the Department of Endocrinology, Metabolism and Internal Medicine, Poznan University of Medical Sciences, 60-355 Poznan, Poland; (W.C.); (A.W.); (W.S.-S.)
| | - Aleksandra Wojciechowska
- Student’s Scientific Society, Endocrinology Section at the Department of Endocrinology, Metabolism and Internal Medicine, Poznan University of Medical Sciences, 60-355 Poznan, Poland; (W.C.); (A.W.); (W.S.-S.)
| | - Weronika Szybiak-Skora
- Student’s Scientific Society, Endocrinology Section at the Department of Endocrinology, Metabolism and Internal Medicine, Poznan University of Medical Sciences, 60-355 Poznan, Poland; (W.C.); (A.W.); (W.S.-S.)
| | - Katarzyna Lacka
- Department of Endocrinology, Metabolism and Internal Medicine, Poznan University of Medical Sciences, 60-355 Poznan, Poland
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Di Dalmazi G, Giuliani C, Bucci I, Mascitti M, Napolitano G. Promising Role of Alkaloids in the Prevention and Treatment of Thyroid Cancer and Autoimmune Thyroid Disease: A Comprehensive Review of the Current Evidence. Int J Mol Sci 2024; 25:5395. [PMID: 38791433 PMCID: PMC11121374 DOI: 10.3390/ijms25105395] [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: 03/21/2024] [Revised: 05/10/2024] [Accepted: 05/13/2024] [Indexed: 05/26/2024] Open
Abstract
Thyroid cancer (TC) and thyroid autoimmune disorders (AITD) are among the most common diseases in the general population, with higher incidence in women. Chronic inflammation and autoimmunity play a pivotal role in carcinogenesis. Some studies, indeed, have pointed out the presence of AITD as a risk factor for TC, although this issue remains controversial. Prevention of autoimmune disease and cancer is the ultimate goal for clinicians and scientists, but it is not always feasible. Thus, new treatments, that overcome the current barriers to prevention and treatment of TC and AITD are needed. Alkaloids are secondary plant metabolites endowed with several biological activities including anticancer and immunomodulatory properties. In this perspective, alkaloids may represent a promising source of prophylactic and therapeutic agents for TC and AITD. This review encompasses the current published literature on alkaloids effects on TC and AITD, with a specific focus on the pathways involved in TC and AITD development and progression.
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Affiliation(s)
- Giulia Di Dalmazi
- Center for Advanced Studies and Technology (CAST), University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy; (C.G.); (I.B.); (G.N.)
- Department of Medicine and Aging Science, University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy
| | - Cesidio Giuliani
- Center for Advanced Studies and Technology (CAST), University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy; (C.G.); (I.B.); (G.N.)
- Department of Medicine and Aging Science, University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy
| | - Ines Bucci
- Center for Advanced Studies and Technology (CAST), University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy; (C.G.); (I.B.); (G.N.)
- Department of Medicine and Aging Science, University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy
| | - Marco Mascitti
- Center for Advanced Studies and Technology (CAST), University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy; (C.G.); (I.B.); (G.N.)
- Department of Medicine and Aging Science, University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy
| | - Giorgio Napolitano
- Center for Advanced Studies and Technology (CAST), University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy; (C.G.); (I.B.); (G.N.)
- Department of Medicine and Aging Science, University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy
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Jiang H, Li Y, Shen J, Lin H, Fan S, Qiu R, He J, Lin E, Chen L. Cigarette smoking and thyroid cancer risk: A Mendelian randomization study. Cancer Med 2023; 12:19866-19873. [PMID: 37746910 PMCID: PMC10587937 DOI: 10.1002/cam4.6570] [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: 04/21/2023] [Revised: 06/06/2023] [Accepted: 09/12/2023] [Indexed: 09/26/2023] Open
Abstract
BACKGROUND The association between cigarette smoking and thyroid cancer has been reported in prospective cohort studies, but the relationship remains controversial. To investigate this potential correlation further, we employed Mendelian randomization methodology to evaluate the causative impact of smoking on thyroid cancer incidence. METHODS From the genome-wide association study and Sequencing Consortium of Alcohol and Nicotine use, we obtained genetic variants associated with smoking initiation and cigarettes per day (1.2 million individuals). We also extracted genetic variants associated with past tobacco smoking from the UK Biobank (424,960 individuals). Thyroid cancer outcomes were selected from the FinnGen GWAS (989 thyroid cancer cases and 217,803 control cases). Sensitivity analyses employing various approaches such as weighted median, MR-Egger, and MR-pleiotropy residual sum and outlier (MR-PRESSO) have been executed, as well as leave-one-out analysis to identify pleiotropy. RESULTS Using the IVW approach, we did not find evidence that any of the three smoking phenotypes were related to thyroid cancer (smoking initiation: odds ratio (OR) = 1.56, p = 0.61; cigarettes per day: OR = 0.85, p = 0.51; past tobacco smoking: OR = 0.80, p = 0.78). The heterogeneity (p > 0.05) and pleiotropy (p > 0.05) testing provided confirmatory evidence for the validity of our MR estimates. CONCLUSIONS The MR analysis revealed that there may not exist a causative link between smoking exposure and elevated incidence rates of thyroid malignancies.
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Affiliation(s)
- Hongzhan Jiang
- School of NursingFujian University of Traditional Chinese MedicineFuzhouChina
| | - Yi Li
- The School of Clinical MedicineFujian Medical UniversityFuzhouChina
| | - Jiali Shen
- School of NursingFujian University of Traditional Chinese MedicineFuzhouChina
| | - Huihui Lin
- School of NursingFujian University of Traditional Chinese MedicineFuzhouChina
| | - Siyue Fan
- School of NursingFujian University of Traditional Chinese MedicineFuzhouChina
| | - Rongliang Qiu
- The School of Clinical MedicineFujian Medical UniversityFuzhouChina
| | - Jiaxi He
- School of MedicineXiamen UniversityXiamenChina
| | - Ende Lin
- Department of General SurgeryZhongshan Hospital of Xiamen University, School of MedicineXiamenChina
| | - Lijuan Chen
- Department of General SurgeryZhongshan Hospital of Xiamen University, School of MedicineXiamenChina
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Batóg G, Dołoto A, Bąk E, Piątkowska-Chmiel I, Krawiec P, Pac-Kożuchowska E, Herbet M. The interplay of oxidative stress and immune dysfunction in Hashimoto's thyroiditis and polycystic ovary syndrome: a comprehensive review. Front Immunol 2023; 14:1211231. [PMID: 37588599 PMCID: PMC10426741 DOI: 10.3389/fimmu.2023.1211231] [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: 04/24/2023] [Accepted: 07/10/2023] [Indexed: 08/18/2023] Open
Abstract
In recent years, there has been a significant increase in the concomitant incidence of Hashimoto's thyroiditis (HT) and polycystic ovary syndrome (PCOS), both in terms of incidence, etiology, and clinical consequences. PCOS patients suffering from autoimmune thyroid diseases show insulin resistance, impaired glucose tolerance, weight gain, and metabolic and reproductive complications. Studies have shown that chronic stress and its consequence, i.e. oxidative stress, play an important role in the pathomechanism of both disorders. It has also been shown that long-term exposure to stress triggers biological mechanisms, in particular related to the regulation of the inflammatory cascade, which plays a key role in autoimmune diseases. The paper is a review of the literature on the role of chronic stress, oxidative stress, and immune processes in the pathogenesis of HT and PCOS. In addition, the review is a source of knowledge about the treatment of these diseases, and in particular the use of antioxidants in therapeutic management.
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Affiliation(s)
- Gabriela Batóg
- Chair and Department of Toxicology, Faculty of Pharmacy, Medical University of Lublin, Lublin, Poland
| | - Anna Dołoto
- Chair and Department of Toxicology, Faculty of Pharmacy, Medical University of Lublin, Lublin, Poland
| | - Ewelina Bąk
- Chair and Department of Toxicology, Faculty of Pharmacy, Medical University of Lublin, Lublin, Poland
| | - Iwona Piątkowska-Chmiel
- Chair and Department of Toxicology, Faculty of Pharmacy, Medical University of Lublin, Lublin, Poland
| | - Paulina Krawiec
- Department of Paediatrics and Gastroenterology, Medical University of Lublin, Lublin, Poland
| | | | - Mariola Herbet
- Chair and Department of Toxicology, Faculty of Pharmacy, Medical University of Lublin, Lublin, Poland
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Nguyen LTD, Gunathilake M, Lee J, Kim J. Association between dietary habits and incident thyroid cancer: A prospective cohort study. Front Nutr 2023; 10:1104925. [PMID: 36875835 PMCID: PMC9975340 DOI: 10.3389/fnut.2023.1104925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 01/20/2023] [Indexed: 02/17/2023] Open
Abstract
Background In addition to the thyroid cancer (TC) risk from lifestyle and environmental factors such as radiation exposure, some studies have indicated that diet may affect TC development; however, previous findings are inconsistent. The objective of our study was to investigate the association between dietary habits and TC risk in a Korean population. Materials and methods A total of 13,973 participants were selected after excluding ineligible subjects from the Cancer Screenee Cohort at National Cancer Center in Korea from October 2007 to December 2021. Participants were followed until May 2022 to identify incident TC cases. Information on dietary habits and general characteristics was collected using a self-report questionnaire administered at enrollment without keeping track of changes in eating habits during the follow-up period. A Cox proportional hazards model was used to determine the hazard ratio (HR) and 95% confidence interval (CI) of TC risk for each dietary factor. Results A total of 138 incident TC cases were identified during the median follow-up period of 7.6 years. Of the 12 dietary habits evaluated, only two habits showed significant associations with TC. A significantly decreased TC risk was found among participants who consumed milk and/or dairy products 5 or more days a week [adjusted HR (aHR), 0.58; 95% CI, 0.39-0.85]. Notably, a stronger protective effect of dairy consumption was observed in participants aged ≥ 50 years (aHR, 0.44; 95% CI, 0.26-0.75), in women (aHR, 0.53; 95% CI, 0.35-0.81), and in non-smokers (aHR, 0.60; 95% CI, 0.39-0.92). There was a reduced risk of TC in participants with meal durations longer than 10 min (aHR, 0.58; 95% CI, 0.41-0.83). However, this association was limited to individuals aged ≥ 50 years (aHR, 0.49; 95% CI, 0.31-0.79), women (aHR, 0.61; 95% CI, 0.41-0.90), and non-smokers (aHR, 0.62; 95% CI, 0.41-0.92). Conclusion Our findings suggest that consuming milk and/or dairy products 5 or more days a week and having a meal duration longer than 10 min could be protective factors against TC, especially in individuals aged ≥ 50 years, women and non-smokers. Further prospective studies are needed to investigate the association of dietary intake with specific types of TC.
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Affiliation(s)
- Linh Thi Dieu Nguyen
- Department of Cancer Biomedical Science, National Cancer Center Graduate School of Cancer Science and Policy, Goyang-si, Republic of Korea
| | - Madhawa Gunathilake
- Department of Cancer Biomedical Science, National Cancer Center Graduate School of Cancer Science and Policy, Goyang-si, Republic of Korea
| | - Jeonghee Lee
- Department of Cancer Biomedical Science, National Cancer Center Graduate School of Cancer Science and Policy, Goyang-si, Republic of Korea
| | - Jeongseon Kim
- Department of Cancer Biomedical Science, National Cancer Center Graduate School of Cancer Science and Policy, Goyang-si, Republic of Korea
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Messinis DE, Poussin C, Latino DARS, Eb-Levadoux Y, Dulize R, Peric D, Guedj E, Titz B, Ivanov NV, Peitsch MC, Hoeng J. Systems biology reveals anatabine to be an NRF2 activator. Front Pharmacol 2022; 13:1011184. [DOI: 10.3389/fphar.2022.1011184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 10/24/2022] [Indexed: 11/17/2022] Open
Abstract
Anatabine, an alkaloid present in plants of the Solanaceae family (including tobacco and eggplant), has been shown to ameliorate chronic inflammatory conditions in mouse models, such as Alzheimer’s disease, Hashimoto’s thyroiditis, multiple sclerosis, and intestinal inflammation. However, the mechanisms of action of anatabine remain unclear. To understand the impact of anatabine on cellular systems and identify the molecular pathways that are perturbed, we designed a study to examine the concentration-dependent effects of anatabine on various cell types by using a systems pharmacology approach. The resulting dataset, consisting of measurements of various omics data types at different time points, was analyzed by using multiple computational techniques. To identify concentration-dependent activated pathways, we performed linear modeling followed by gene set enrichment. To predict the functional partners of anatabine and the involved pathways, we harnessed the LINCS L1000 dataset’s wealth of information and implemented integer linear programming on directed graphs, respectively. Finally, we experimentally verified our key computational predictions. Using an appropriate luciferase reporter cell system, we were able to demonstrate that anatabine treatment results in NRF2 (nuclear factor-erythroid factor 2-related factor 2) translocation, and our systematic phosphoproteomic assays showed that anatabine treatment results in activation of MAPK signaling. While there are certain areas to be explored in deciphering the exact anti-inflammatory mechanisms of action of anatabine and other NRF2 activators, we believe that anatabine constitutes an interesting molecule for its therapeutic potential in NRF2-related diseases.
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Edstorp J, Lampousi A, Carlsson S. Parental smoking, type 1 diabetes, and islet autoantibody positivity in the offspring: A systematic review and meta-analysis. Diabet Med 2022; 39:e14830. [PMID: 35290684 PMCID: PMC9311676 DOI: 10.1111/dme.14830] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 01/26/2022] [Accepted: 03/12/2022] [Indexed: 12/01/2022]
Abstract
AIMS Our aim was to synthesize current evidence on the association between parental smoking and incidence of type 1 diabetes and islet autoantibody positivity (IA) in the offspring by conducting a systematic review and meta-analysis. METHODS We searched Medline, Embase, and Cochrane Library until January 21, 2021, for human studies with parental tobacco use as exposure, type 1 diabetes or IA as outcome, and hazard, risk, or odds ratios as effect estimates. Summary relative risks (RR) and 95% confidence intervals (CI) were estimated with random-effects models. Heterogeneity was quantified with the I2 statistic, bias with the ROBINS-I tool, and the certainty of evidence with the GRADE tool. RESULTS We identified 535 records of which 23 were eligible including 25 927 cases of type 1 diabetes. Maternal smoking during pregnancy was associated with a reduced risk of type 1 diabetes (n = 22, RR 0.78, CI 0.71-0.86, I2 =69%). Including only studies with low to moderate risk of bias indicated similar results with less heterogeneity (n = 14, RR 0.73, CI 0.68-0.79, I2 = 44%). The certainty of evidence was graded as high. There was no clear association between type 1 diabetes and neither maternal (n = 6, RR 0.95, CI 0.78-1.14, I2 = 0%) nor paternal (n = 6, RR 0.90, 0.70-1.17, I2 = 68%) smoking during childhood. Furthermore, the association between maternal smoking during pregnancy and IA was weak (n = 4, RR 0.86, CI 0.44-1.65, I2 = 71%). CONCLUSIONS Maternal smoking during pregnancy may reduce the risk of type 1 diabetes in the offspring. Further studies are needed to elucidate potential mechanisms underlying this association. REGISTRATION Prospero CRD42021236717.
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Affiliation(s)
- Jessica Edstorp
- Institute of Environmental MedicineKarolinska InstituteStockholmSweden
| | | | - Sofia Carlsson
- Institute of Environmental MedicineKarolinska InstituteStockholmSweden
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8
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Di Dalmazi G, Giuliani C. Plant constituents and thyroid: A revision of the main phytochemicals that interfere with thyroid function. Food Chem Toxicol 2021; 152:112158. [PMID: 33789121 DOI: 10.1016/j.fct.2021.112158] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 03/22/2021] [Accepted: 03/24/2021] [Indexed: 01/06/2023]
Abstract
In the past few decades, there has been a lot of interest in plant constituents for their antioxidant, anti-inflammatory, anti-microbial and anti-proliferative properties. However, concerns have been raised on their potential toxic effects particularly when consumed at high dose. The anti-thyroid effects of some plant constituents have been known for some time. Indeed, epidemiological observations have shown the causal association between staple food based on brassicaceae or soybeans and the development of goiter and/or hypothyroidism. Herein, we review the main plant constituents that interfere with normal thyroid function such as cyanogenic glucosides, polyphenols, phenolic acids, and alkaloids. In detail, we summarize the in vitro and in vivo studies present in the literature, focusing on the compounds that are more abundant in foods or that are available as dietary supplements. We highlight the mechanism of action of these compounds on thyroid cells by giving a particular emphasis to the experimental studies that can be significant for human health. Furthermore, we reveal that the anti-thyroid effects of these plant constituents are clinically evident only when they are consumed in very large amounts or when their ingestion is associated with other conditions that impair thyroid function.
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Affiliation(s)
- Giulia Di Dalmazi
- Center for Advanced Studies and Technology (CAST) and Department of Medicine and Aging Science, University "G. d'Annunzio" of Chieti-Pescara, 66100, Chieti, Italy; Department of Medicine and Aging Science, Translational Medicine PhD Program, University "G. d'Annunzio" of Chieti-Pescara, 66100, Chieti, Italy.
| | - Cesidio Giuliani
- Center for Advanced Studies and Technology (CAST) and Department of Medicine and Aging Science, University "G. d'Annunzio" of Chieti-Pescara, 66100, Chieti, Italy.
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Xia W, Kolli AR, Koshibu K, Martin F, Kondylis A, Kuczaj A, Tan WT, Yeo YS, Tan G, Teng C, Woon K, Schneider T, Talikka M, Phillips BW, Vanscheeuwijck P, Peitsch MC, Hoeng J. In Vivo Profiling of a Natural Alkaloid, Anatabine, in Rodents: Pharmacokinetics and Anti-Inflammatory Efficacy. JOURNAL OF NATURAL PRODUCTS 2021; 84:1012-1021. [PMID: 33706515 DOI: 10.1021/acs.jnatprod.0c01044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Natural alkaloids, a large class of plant-derived substances, have attracted considerable interest because of their pharmacological activities. In this study, the in vivo pharmacokinetics and anti-inflammatory profile of anatabine, a naturally occurring alkaloid, were characterized in rodents. Anatabine was found to be bioavailable and brain-penetrant following systemic administration. Following intraperitoneal (i.p.) administration (1, 2, and 5 mg/kg), anatabine caused a dose-dependent reduction in carrageenan-induced paw edema in rats; in mice, it inhibited the production of pro-inflammatory cytokines and simultaneously elevated the levels of an anti-inflammatory cytokine in a dose-dependent manner 2 h after lipopolysaccharide challenge. Furthermore, anatabine (∼10 and ∼20 mg/kg/day for 4 weeks; inhalation exposure) had effects in a murine model of multiple sclerosis, reducing neurological deficits and bodyweight loss. Comparative studies of the pharmacokinetics and anti-inflammatory activity of anatabine demonstrated its bioequivalence in rats following i.p. administration and inhalation exposure. This study not only provides the first detailed profile of anatabine pharmacokinetics in rodents but also comprehensively characterizes the anti-inflammatory activities of anatabine in acute and chronic inflammatory models. These findings provide a basis for further characterizing and optimizing the anti-inflammatory properties of anatabine.
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Affiliation(s)
- Wenhao Xia
- Philip Morris International Research Laboratories Pte Ltd, 50 Science Park Road, Singapore 117406
| | - Aditya Reddy Kolli
- Philip Morris Products S.A., Quai Jeanrenaud 5, Neuchatel, CH-2000, Switzerland
| | - Kyoko Koshibu
- Philip Morris Products S.A., Quai Jeanrenaud 5, Neuchatel, CH-2000, Switzerland
| | - Florian Martin
- Philip Morris Products S.A., Quai Jeanrenaud 5, Neuchatel, CH-2000, Switzerland
| | - Athanasios Kondylis
- Philip Morris Products S.A., Quai Jeanrenaud 5, Neuchatel, CH-2000, Switzerland
| | - Arkadiusz Kuczaj
- Philip Morris Products S.A., Quai Jeanrenaud 5, Neuchatel, CH-2000, Switzerland
| | - Wei Teck Tan
- Philip Morris International Research Laboratories Pte Ltd, 50 Science Park Road, Singapore 117406
| | - Ying Shan Yeo
- Philip Morris International Research Laboratories Pte Ltd, 50 Science Park Road, Singapore 117406
| | - Glenda Tan
- Philip Morris International Research Laboratories Pte Ltd, 50 Science Park Road, Singapore 117406
| | - Charles Teng
- Philip Morris International Research Laboratories Pte Ltd, 50 Science Park Road, Singapore 117406
| | - Kaing Woon
- Philip Morris International Research Laboratories Pte Ltd, 50 Science Park Road, Singapore 117406
| | - Thomas Schneider
- Philip Morris Products S.A., Quai Jeanrenaud 5, Neuchatel, CH-2000, Switzerland
| | - Marja Talikka
- Philip Morris Products S.A., Quai Jeanrenaud 5, Neuchatel, CH-2000, Switzerland
| | - Blaine W Phillips
- Philip Morris International Research Laboratories Pte Ltd, 50 Science Park Road, Singapore 117406
| | | | - Manuel C Peitsch
- Philip Morris Products S.A., Quai Jeanrenaud 5, Neuchatel, CH-2000, Switzerland
| | - Julia Hoeng
- Philip Morris Products S.A., Quai Jeanrenaud 5, Neuchatel, CH-2000, Switzerland
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Wang M, Gong WW, Lu F, He QF, Hu RY, Zhong JM, Yu M. Associations of intensity, duration, cumulative dose, and age at start of smoking, with thyroid cancer in Chinese males: A hospital-based case-control study in Zhejiang Province. Tob Induc Dis 2020; 18:97. [PMID: 33281531 PMCID: PMC7713696 DOI: 10.18332/tid/130350] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 10/25/2020] [Accepted: 11/10/2020] [Indexed: 12/20/2022] Open
Abstract
INTRODUCTION There has been considerable research on the association between smoking status and thyroid cancer risk in males, yet the findings are inconsistent. In this study, we investigated the associations of intensity, duration, cumulative dose, and age at start of smoking, with thyroid cancer in Chinese males. METHODS From a 1:1 matched case–control study conducted between 2015 and 2017 in Zhejiang Province, China, 676 pairs of male subjects were included in the analysis. The associations between smoking characteristics and thyroid cancer were evaluated in logistic regression models by odds ratios (ORs) with 95% confidence intervals (CIs). RESULTS Compared with never smokers, the former smokers were 0.096 times (95% CI: 0.012–0.778) less likely to have thyroid cancer. The significant inverse association was not observed in current smokers (OR=0.333; 95% CI: 0.084–1.322). Among both former and current smokers, higher smoking intensity (>10 cigarettes/day), duration (>15 years), and cumulative dose of smoking (>10 packyears) were significantly associated with reduced occurrence of thyroid cancer. CONCLUSIONS Our findings indicate that former smoking is inversely associated with thyroid cancer occurrence in Chinese males. The reduction in the occurrence of thyroid cancer was also confirmed for both former and current smokers with higher smoking intensity, duration, and cumulative dose.
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Affiliation(s)
- Meng Wang
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Wei W Gong
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Feng Lu
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Qing F He
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Ru Y Hu
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Jie M Zhong
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Min Yu
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
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11
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Rodríguez Y, Rojas M, Monsalve DM, Acosta-Ampudia Y, Pacheco Y, Rodríguez-Jiménez M, Ramírez-Santana C, Anaya JM. Latent autoimmune thyroid disease. J Transl Autoimmun 2020; 3:100038. [PMID: 32743521 PMCID: PMC7388391 DOI: 10.1016/j.jtauto.2020.100038] [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: 01/05/2020] [Accepted: 01/05/2020] [Indexed: 12/24/2022] Open
Abstract
Objective To determine the prevalence of thyroid autoantibodies and the associated factors in euthyroid subjects. Methods 300 euthyroid subjects, chosen by stratified sampling from an inception cohort of 1335 individuals, were included. Thyroid function was evaluated by measuring the serum levels of TSH (0.3–4.5 μIU/mL) and FT4 (5.2–12.7μg/dL). Anti-peroxidase (TPOAbs), anti-thyroglobulin (TgAbs), and anti-TSH receptor (TrAbs) antibodies were evaluated with 23 additional autoantibodies as well as vitamin D (VitD) levels. The analysis included sociodemographic, clinical, and environmental characteristics. Data were analyzed by bivariate and multivariate tests. Results Thyroid autoimmunity was observed in 15.3% of the subjects (TPOAbs 11.3% and TgAbs 2.0%). In six individuals, both autoantibodies were positive. TrAbs were not detected in any individual. Familial thyroid disease (β = 3.4, 95% CI: 1.2–9.5, P = 0.021), the presence of other autoimmune diseases (β = 10.8, 95% CI: 1.6–72.9, P = 0.014) VitD insufficiency (P = 0.030), never smoke (β = 6.9, 95% CI: 1.6–30.4, P = 0.010), drinking more than 4 cups of coffee (β = 3.8, 95% CI: 1.1–13.1, P = 0.036), and a higher number of years exposed to wood smoke (P = 0.04) were associated with thyroid autoimmunity. In the case of TPOAbs, familial thyroid disease (β = 4.9, 95% CI: 1.7–14.0, P = 0.003), never smoke (β = 5.7, 95% CI: 1.4–21.0, P = 0.002), and drinking more than 4 cups of coffee (β = 3.6, 95% CI: 1.1–13.1, P = 0.047) were associated with their positivity. In addition, the presence of anti–SS–A/Ro52 (β = 36.7, 95% CI: 2.5–549.9, P = 0.009) and anti-Ku antibodies (β = 10.2, 95% CI: 1.1–100.7, P = 0.046) was also associated with TPOAbs. The presence of African ancestry (β = 10.5, 95% CI: 1.7–63.2, P = 0.01), anti–SS–A/Ro52 (β = 15.8, 95% CI: 1.2–198.6, P = 0.03), and anti-CENP-B antibodies (β = 31.2, 95% CI: 1.8–565.9 P = 0.02) were associated with TgAbs. Conclusion Latent thyroid autoimmunity is not rare. Environmental, genetic, and immunological factors as well as ancestry are associated risk factors. These results would facilitate the implementation of screening strategies in order to provide timely diagnosis and treatment. Latent autoimmunity is common in colombian eutyrhoid subjects. Autoimmune diseases and familial autimmunity are associated to thyroid autoimmunity. Tobacco, cofee compsumption and VitD insufficiency influence thyroid autoimmunity. Early recognition of latent autoimmunity allows prediction of overt autoimmunity.
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Affiliation(s)
- Yhojan Rodríguez
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad Del Rosario, Bogota, Colombia.,Clinica Del Occidente, Bogota, Colombia
| | - Manuel Rojas
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad Del Rosario, Bogota, Colombia.,Doctoral Program in Biomedical and Biological Sciences, Universidad Del Rosario, Bogota, Colombia
| | - Diana M Monsalve
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad Del Rosario, Bogota, Colombia
| | - Yeny Acosta-Ampudia
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad Del Rosario, Bogota, Colombia
| | - Yovana Pacheco
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad Del Rosario, Bogota, Colombia
| | - Mónica Rodríguez-Jiménez
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad Del Rosario, Bogota, Colombia
| | - Carolina Ramírez-Santana
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad Del Rosario, Bogota, Colombia
| | - Juan-Manuel Anaya
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad Del Rosario, Bogota, Colombia
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12
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Glenn JD, Pantoja IM, Caturegli P, Whartenby KA. MYMD-1, a novel alkaloid compound, ameliorates the course of experimental autoimmune encephalomyelitis. J Neuroimmunol 2020; 339:577115. [PMID: 31778849 DOI: 10.1016/j.jneuroim.2019.577115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 11/13/2019] [Accepted: 11/19/2019] [Indexed: 10/25/2022]
Abstract
Multiple sclerosis (MS) is an autoimmune disease that remains in need of effective therapies. Plant-derived medicines have appealing properties for the treatment of autoimmune diseases. MYMD-1 is a synthetic plant alkaloid that has been shown to ameliorate the course of autoimmune thyroiditis. The goal of the present study was to determine whether MYMD-1 would produce similar beneficial effects in a mouse model of MS, experimental autoimmune encephalomyelitis (EAE) induced by immunization with myelin oligodendrocyte glycoprotein. MYMD-1 improved the course of EAE and suppressed activation of effector T cells without causing global immunosuppression or toxicity. These results suggest that MYMD-1 may be of interest for evaluating for the treatment of autoimmune diseases.
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Affiliation(s)
- Justin D Glenn
- Depts of Neurology, Johns Hopkins University School of Medicine, USA
| | - Itzy Morales Pantoja
- Depts of Cellular and Molecular Medicine, Johns Hopkins University School of Medicine, USA
| | | | - Katharine A Whartenby
- Depts of Neurology, Johns Hopkins University School of Medicine, USA; Depts of Cellular and Molecular Medicine, Johns Hopkins University School of Medicine, USA; Depts of Oncology, Johns Hopkins University School of Medicine, USA.
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13
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Xing H, Keshwah S, Rouchaud A, Kem WR. A Pharmacological Comparison of Two Isomeric Nicotinic Receptor Agonists: The Marine Toxin Isoanatabine and the Tobacco Alkaloid Anatabine. Mar Drugs 2020; 18:E106. [PMID: 32053997 PMCID: PMC7073524 DOI: 10.3390/md18020106] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 02/05/2020] [Accepted: 02/07/2020] [Indexed: 12/15/2022] Open
Abstract
Many organisms possess "secondary" compounds to avoid consumption or to immobilize prey. While the most abundant or active compounds are initially investigated, more extensive analyses reveal other "minor" compounds with distinctive properties that may also be of biomedical and pharmaceutical significance. Here, we present an initial in vitro investigation of the actions of two isomeric tetrahydropyridyl ring-containing anabasine analogs: isoanatabine, an alkaloid isolated from a marine worm, and anatabine, a relatively abundant minor alkaloid in commercial tobacco plants. Both compounds have a double bond that is distal to the piperidine ring nitrogen of anabasine. Racemic isoanatabine and anatabine were synthesized and their S- and R-enantiomers were isolated by chiral high pressure liquid chromatography (HPLC). Both isoanatabines displayed higher efficacies at α4β2 nicotinic acetylcholine receptors (nAChRs) relative to the anatabines; R-isoanatabine was most potent. Radioligand binding experiments revealed similar α4β2 nAChR binding affinities for the isoanatabines, but R-anatabine affinity was twice that of S-anatabine. While the two anatabines and S-isoanatabine were highly efficacious agonists at α7 nAChRs, R-isoanatabine was only a weak partial agonist. The four compounds share an ability to stimulate both α4β2 and α7 nAChRs, a property that may be useful in developing more efficacious drugs to treat neurodegenerative and other medical disorders.
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Affiliation(s)
| | | | | | - William R. Kem
- Department of Pharmacology and Therapeutics, College of Medicine, University of Florida, Gainesville, FL 32610, USA (S.K.)
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14
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Di Dalmazi G, Chalan P, Caturegli P. MYMD-1, a Novel Immunometabolic Regulator, Ameliorates Autoimmune Thyroiditis via Suppression of Th1 Responses and TNF-α Release. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2019; 202:1350-1362. [PMID: 30674573 DOI: 10.4049/jimmunol.1801238] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Accepted: 12/17/2018] [Indexed: 01/04/2023]
Abstract
MYMD-1 is a synthetic derivative of tobacco alkaloids, compounds that possess immunoregulatory properties and have been linked to the epidemiological observation that smoking reduces the odds of developing thyroid Abs and hypothyroidism. To assess the effect and mechanism(s) of the action of MYMD-1, we chose the NOD.H-2h4 mouse model of spontaneous thyroiditis. We began in vitro using T cells isolated from NOD.H-2h4 spleens and found that MYMD-1 suppressed TNF-α production by CD4+ T cells in a dose-dependent manner. We then treated 58 NOD.H-2h4 mice for 12 wk with either unsupplemented water that contained (10 mice) or did not contain (16 mice) MYMD-1 (185 mg/l) or water supplemented with sodium iodide (500 mg/l) that contained (16 mice) or did not contain (16 mice) MYMD-1. Mice were bled at baseline and then every 2 wk until sacrifice. MYMD-1 decreased the incidence and severity (p < 0.001) of thyroiditis, as assessed by histopathology. Similarly, the number of CD3+ T cells and CD19+ B cells infiltrating the thyroid was dampened by MYMD-1, as assessed by flow cytometry. Interestingly, the subset of thyroidal CD3+CD4+Tbet+RORγT- effector Th1 cells and the systemic levels of TNF-α were decreased by MYMD-1. Serum thyroglobulin Abs decreased in the MYMD-1 group. Thyroid hormones did not differ among the four groups, whereas thyroid-stimulating hormone increased upon iodine supplementation but remained normal in MYMD-1-treated mice. Overall, the study suggests that MYMD-1 ameliorates thyroiditis acting on specific lymphoid subsets. Further studies, including other models of autoimmunity, will confirm the potential clinical use of MYMD-1 as a novel immunometabolic regulator.
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Affiliation(s)
- Giulia Di Dalmazi
- Division of Immunology, Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, MD 21205
- Division of Endocrinology, Department of Medicine and Aging Sciences, G. D'Annunzio University of Chieti-Pescara, Chieti 66100, Italy; and
| | - Paulina Chalan
- Division of Immunology, Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, MD 21205
| | - Patrizio Caturegli
- Division of Immunology, Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, MD 21205;
- Department of Molecular Microbiology and Immunology, The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205
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15
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Cigarette smoking and thyroid cancer risk: a cohort study. Br J Cancer 2018; 119:638-645. [PMID: 30111870 PMCID: PMC6162293 DOI: 10.1038/s41416-018-0224-5] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2018] [Revised: 07/16/2018] [Accepted: 07/17/2018] [Indexed: 12/29/2022] Open
Abstract
Background We evaluated the association between smoking status and thyroid cancer risk and whether this association is mediated by body mass index (BMI) and thyroid-stimulating hormone (TSH). Methods We performed a cohort study of 96,855 Korean adults who were followed annually or biennially for a median of 5.9 years. Results During 511,052.9 person-years of follow-up, 1,250 participants developed thyroid cancer. In men, we observed a dose-dependent inverse association between current smoking, pack-years, and thyroid cancer. After adjustment for confounders, adjusted hazard ratios (95% confidence intervals) for thyroid cancer comparing current and former smokers to never smokers were 0.58 (0.45–0.75) and 0.93 (0.73–1.18), respectively. After further adjustment for BMI and TSH as potential mediators, this association was slightly attenuated, but remained significant. For women, current smokers tended to have a lower risk of thyroid cancer, but this association did not reach statistical significance. Conclusions In this cohort study, current smoking was associated with a decreased risk of incident thyroid cancer in men but not in women and this association was observed even after adjusting for TSH and BMI levels as potential mediators. Further mechanistic studies are needed to elucidate the possible effect of smoking on the pathogenesis of thyroid cancer development.
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16
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Dragin N, Bismuth J, Cizeron-Clairac G, Biferi MG, Berthault C, Serraf A, Nottin R, Klatzmann D, Cumano A, Barkats M, Le Panse R, Berrih-Aknin S. Estrogen-mediated downregulation of AIRE influences sexual dimorphism in autoimmune diseases. J Clin Invest 2016; 126:1525-37. [PMID: 26999605 PMCID: PMC4811157 DOI: 10.1172/jci81894] [Citation(s) in RCA: 129] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Accepted: 01/21/2016] [Indexed: 01/01/2023] Open
Abstract
Autoimmune diseases affect 5% to 8% of the population, and females are more susceptible to these diseases than males. Here, we analyzed human thymic transcriptome and revealed sex-associated differences in the expression of tissue-specific antigens that are controlled by the autoimmune regulator (AIRE), a key factor in central tolerance. We hypothesized that the level of AIRE is linked to sexual dimorphism susceptibility to autoimmune diseases. In human and mouse thymus, females expressed less AIRE (mRNA and protein) than males after puberty. These results were confirmed in purified murine thymic epithelial cells (TECs). We also demonstrated that AIRE expression is related to sexual hormones, as male castration decreased AIRE thymic expression and estrogen receptor α-deficient mice did not show a sex disparity for AIRE expression. Moreover, estrogen treatment resulted in downregulation of AIRE expression in cultured human TECs, human thymic tissue grafted to immunodeficient mice, and murine fetal thymus organ cultures. AIRE levels in human thymus grafted in immunodeficient mice depended upon the sex of the recipient. Estrogen also upregulated the number of methylated CpG sites in the AIRE promoter. Together, our results indicate that in females, estrogen induces epigenetic changes in the AIRE gene, leading to reduced AIRE expression under a threshold that increases female susceptibility to autoimmune diseases.
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Affiliation(s)
- Nadine Dragin
- Sorbonne Universités, UPMC University of Paris 06, Paris, France
- INSERM U974, Paris, France
- CNRS FRE 3617, Paris, France
- AIM, Institute of Myology, Paris, France
| | - Jacky Bismuth
- Sorbonne Universités, UPMC University of Paris 06, Paris, France
- INSERM U974, Paris, France
- CNRS FRE 3617, Paris, France
- AIM, Institute of Myology, Paris, France
| | | | - Maria Grazia Biferi
- Sorbonne Universités, UPMC University of Paris 06, Paris, France
- INSERM U974, Paris, France
- CNRS FRE 3617, Paris, France
- AIM, Institute of Myology, Paris, France
| | - Claire Berthault
- INSERM U668, Unit for Lymphopoiesis, Immunology Department, Pasteur Institute, Paris, France
- Université Paris Diderot, Sorbonne Paris Cité, Cellule Pasteur, Paris, France
| | - Alain Serraf
- Hôpital Marie Lannelongue, Le Plessis–Robinson, France
| | - Rémi Nottin
- Hôpital Marie Lannelongue, Le Plessis–Robinson, France
| | - David Klatzmann
- Assistance Publique – Hôpitaux de Paris (AP-HP), Pitié-Salpêtrière Hospital, Biotherapy, Paris, France
| | - Ana Cumano
- INSERM U668, Unit for Lymphopoiesis, Immunology Department, Pasteur Institute, Paris, France
| | - Martine Barkats
- Sorbonne Universités, UPMC University of Paris 06, Paris, France
- INSERM U974, Paris, France
- CNRS FRE 3617, Paris, France
- AIM, Institute of Myology, Paris, France
| | - Rozen Le Panse
- Sorbonne Universités, UPMC University of Paris 06, Paris, France
- INSERM U974, Paris, France
- CNRS FRE 3617, Paris, France
- AIM, Institute of Myology, Paris, France
| | - Sonia Berrih-Aknin
- Sorbonne Universités, UPMC University of Paris 06, Paris, France
- INSERM U974, Paris, France
- CNRS FRE 3617, Paris, France
- AIM, Institute of Myology, Paris, France
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17
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Verma M, Beaulieu-Abdelahad D, Ait-Ghezala G, Li R, Crawford F, Mullan M, Paris D. Chronic Anatabine Treatment Reduces Alzheimer's Disease (AD)-Like Pathology and Improves Socio-Behavioral Deficits in a Transgenic Mouse Model of AD. PLoS One 2015; 10:e0128224. [PMID: 26010758 PMCID: PMC4444019 DOI: 10.1371/journal.pone.0128224] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Accepted: 04/24/2015] [Indexed: 01/09/2023] Open
Abstract
Anatabine is a minor tobacco alkaloid, which is also found in plants of the Solanaceae family and displays a chemical structure similarity with nicotine. We have shown previously that anatabine displays some anti-inflammatory properties and reduces microgliosis and tau phosphorylation in a pure mouse model of tauopathy. We therefore investigated the effects of a chronic oral treatment with anatabine in a transgenic mouse model (Tg PS1/APPswe) of Alzheimer's disease (AD) which displays pathological Aβ deposits, neuroinflammation and behavioral deficits. In the elevated plus maze, Tg PS1/APPswe mice exhibited hyperactivity and disinhibition compared to wild-type mice. Six and a half months of chronic oral anatabine treatment, suppressed hyperactivity and disinhibition in Tg PS1/APPswe mice compared to Tg PS1/APPswe receiving regular drinking water. Tg PS1/APPswe mice also elicited profound social interaction and social memory deficits, which were both alleviated by the anatabine treatment. We found that anatabine reduces the activation of STAT3 and NFκB in the vicinity of Aβ deposits in Tg PS1/APPswe mice resulting in a reduction of the expression of some of their target genes including Bace1, iNOS and Cox-2. In addition, a significant reduction in microgliosis and pathological deposition of Aβ was observed in the brain of Tg PS1/APPswe mice treated with anatabine. This is the first study to investigate the impact of chronic anatabine treatment on AD-like pathology and behavior in a transgenic mouse model of AD. Overall, our data show that anatabine reduces β-amyloidosis, neuroinflammation and alleviates some behavioral deficits in Tg PS1/APPswe, supporting further exploration of anatabine as a possible disease modifying agent for the treatment of AD.
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Affiliation(s)
- Megha Verma
- The Roskamp Institute, Sarasota, Florida, 34243, United States of America
- The Open University, Walton Hall, Milton Keynes, Buckinghamshire, MK7 6AA, United Kingdom
- * E-mail:
| | | | - Ghania Ait-Ghezala
- The Roskamp Institute, Sarasota, Florida, 34243, United States of America
| | - Rena Li
- The Roskamp Institute, Sarasota, Florida, 34243, United States of America
| | - Fiona Crawford
- The Roskamp Institute, Sarasota, Florida, 34243, United States of America
| | - Michael Mullan
- The Roskamp Institute, Sarasota, Florida, 34243, United States of America
- Rock Creek Pharmaceuticals, Sarasota, Florida, 34243, United States of America
| | - Daniel Paris
- The Roskamp Institute, Sarasota, Florida, 34243, United States of America
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18
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Effraimidis G, Wiersinga WM. Mechanisms in endocrinology: autoimmune thyroid disease: old and new players. Eur J Endocrinol 2014; 170:R241-52. [PMID: 24609834 DOI: 10.1530/eje-14-0047] [Citation(s) in RCA: 203] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The last 10 years have seen some progress in understanding the etiology of autoimmune thyroid disease (AITD). The female preponderance can now be explained - at least in part - by fetal microchimerism and X-chromosome inactivation. The number of identified susceptibility genes for AITD is increasing (among others now including TSHR, TG, HLA, CTLA4, PTPN22, CD40, FCRL3, IL2RA, and FOXP3), but these genes together probably do not explain more than about 10% of the heritability of AITD. As twin studies indicate that genes contribute for 70% of AITD, it follows that there must be many more loci, each of them contributing a little. While the genetic studies have clarified why various autoimmune diseases so often cluster in the same patient, the molecular mechanism of action of these genetic polymorphisms (frequently located in introns) has hardly been explained. Polymorphisms in AITD susceptibility genes may become helpful in clinical practice, e.g. in assessing risk of recurrent Graves' hyperthyroidism (GH) after a course of antithyroid drugs. Moderate alcohol intake decreases the risk on overt GH and overt Hashimoto's hypothyroidism. Current smokers - as well known - are at increased risk for Graves' disease, but - surprisingly - at diminished risk for Hashimoto's thyroiditis. Low selenium and low vitamin D levels might increase the risk of developing AITD, but data are still inconclusive. Current options for preventive interventions in subjects at risk to develop AITD are very limited.
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Affiliation(s)
- Grigoris Effraimidis
- Department of Endocrinology and MetabolismAcademic Medical Center, Room F5-169, University of Amsterdam, Meibergdreef 9, Amsterdam 1105AZ, The Netherlands
| | - Wilmar M Wiersinga
- Department of Endocrinology and MetabolismAcademic Medical Center, Room F5-169, University of Amsterdam, Meibergdreef 9, Amsterdam 1105AZ, The Netherlands
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19
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Jenkins NDM, Housh TJ, Cochrane KC, Bergstrom HC, Traylor DA, Lewis RW, Buckner SL, Schmidt RJ, Johnson GO, Cramer JT. Effects of anatabine and unilateral maximal eccentric isokinetic muscle actions on serum markers of muscle damage and inflammation. Eur J Pharmacol 2014; 728:161-6. [PMID: 24509134 DOI: 10.1016/j.ejphar.2014.01.054] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Revised: 01/27/2014] [Accepted: 01/28/2014] [Indexed: 01/28/2023]
Abstract
The purpose of this study was to examine the effects of anatabine supplementation in conjunction with unilateral, maximal eccentric isokinetic muscle actions on serum markers of muscle damage and pro-inflammatory cytokines in humans. Seventeen men (mean ± S.D. age = 22.4 ± 3.2 yrs) participated in this double-blinded, placebo-controlled, crossover study. Participants were randomly assigned to two 10-day conditions (anatabine and placebo) separated by a 2-4 week washout period. After seven days of supplementation, blood was sampled immediately prior to PRE, immediately following POST, and 24, 48, and 72 h after 6 sets of 10 repetitions of unilateral, maximal eccentric isokinetic forearm flexion exercise. Concentrations of serum creatine kinase, lactate dehydrogenase, myoglobin, high sensitivity c-reactive protein, and TNF-α were measured. Creatine kinase, myoglobin, and lactate dehydrogenase increased (P<0.05), while high sensitivity c-reactive protein and TNF-α did not change (P>0.05) after the eccentric exercise during both conditions. Lactate dehydrogenase was higher (P<0.05) during the anatabine condition. The primary findings of this study were two-fold: (a) anatabine had no beneficial effects on traditional markers of muscle damage (creatine kinase, lactate dehydrogenase, and myoglobin) compared to placebo after the eccentric exercise protocol, and (b) the eccentric exercise protocol did not elicit increase in the pro-inflammatory cytokines (c-reactive protein and TNF-α). Future studies are needed to examine the effects of anatabine on naturally-occurring inflammation that is common with aging or obesity. Furthermore, additional research is needed to examine the relationship between muscle damage and inflammation after eccentric exercises of different modes, durations, and intensities.
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Affiliation(s)
- Nathaniel D M Jenkins
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, 211 Ruth Leverton Hall, Lincoln, NE 68583-0806, USA.
| | - Terry J Housh
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, 211 Ruth Leverton Hall, Lincoln, NE 68583-0806, USA
| | - Kristen C Cochrane
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, 211 Ruth Leverton Hall, Lincoln, NE 68583-0806, USA
| | - Haley C Bergstrom
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, 211 Ruth Leverton Hall, Lincoln, NE 68583-0806, USA
| | - Daniel A Traylor
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, 211 Ruth Leverton Hall, Lincoln, NE 68583-0806, USA
| | - Robert W Lewis
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, 211 Ruth Leverton Hall, Lincoln, NE 68583-0806, USA
| | - Samuel L Buckner
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, 211 Ruth Leverton Hall, Lincoln, NE 68583-0806, USA
| | - Richard J Schmidt
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, 211 Ruth Leverton Hall, Lincoln, NE 68583-0806, USA
| | - Glen O Johnson
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, 211 Ruth Leverton Hall, Lincoln, NE 68583-0806, USA
| | - Joel T Cramer
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, 211 Ruth Leverton Hall, Lincoln, NE 68583-0806, USA.
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Andersen SL, Olsen J, Wu CS, Laurberg P. Smoking reduces the risk of hypothyroidism and increases the risk of hyperthyroidism: evidence from 450,842 mothers giving birth in Denmark. Clin Endocrinol (Oxf) 2014; 80:307-14. [PMID: 23808881 DOI: 10.1111/cen.12279] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2013] [Revised: 06/11/2013] [Accepted: 06/26/2013] [Indexed: 11/29/2022]
Abstract
OBJECTIVE Smoking may influence on the occurrence of thyroid disease, but studies have led to inconsistent results. In Denmark, information on maternal smoking during pregnancy is registered by midwives, and we investigated the association between maternal smoking as reported during pregnancy and the subsequent maternal risk of having hyper- or hypothyroidism diagnosed. DESIGN Population-based cohort study. PARTICIPANTS Using Danish nationwide registers, we identified mothers giving birth in Denmark, 1996-2008, and studied their first pregnancy in the study period. MEASUREMENTS Information on maternal smoking during the pregnancy and maternal diagnosis of hyper- or hypothyroidism was obtained from the Danish National Hospital Register (DNHR) and prescription of thyroid medication from the Danish National Prescription Register (DNPR). Cox proportional hazards model was used to estimate hazard ratio (HR) with 95% confidence interval (95% CI) for onset of maternal hyper- or hypothyroidism after birth of the child in multivariate analyses adjusting for potential confounders. RESULTS Among mothers included (n = 450 842), altogether 89,022 (19·7%) reported that they were smokers during the first pregnancy in the study period, and 8905 (2·0%) developed hyper (n = 3389)- or hypothyroidism (n = 5516) after birth of the child. Maternal smoking was associated with a subsequent decreased risk of developing hypothyroidism (adjusted HR 0·75 (95% CI 0·70-0·81)) and an increased risk of hyperthyroidism (1·38 (1·27-1·49)). CONCLUSIONS Danish nationwide registration of maternal smoking during pregnancy adds further evidence to an association between smoking and thyroid dysfunction; smoking reduced the risk of hypothyroidism and increased the risk of hyperthyroidism.
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Abstract
Hashimoto thyroiditis (HT), now considered the most common autoimmune disease, was described over a century ago as a pronounced lymphoid goiter affecting predominantly women. In addition to this classic form, several other clinico-pathologic entities are now included under the term HT: fibrous variant, IgG4-related variant, juvenile form, Hashitoxicosis, and painless thyroiditis (sporadic or post-partum). All forms are characterized pathologically by the infiltration of hematopoietic mononuclear cells, mainly lymphocytes, in the interstitium among the thyroid follicles, although specific features can be recognized in each variant. Thyroid cells undergo atrophy or transform into a bolder type of follicular cell rich in mitochondria called Hürthle cell. Most HT forms ultimately evolve into hypothyroidism, although at presentation patients can be euthyroid or even hyperthyroid. The diagnosis of HT relies on the demonstration of circulating antibodies to thyroid antigens (mainly thyroperoxidase and thyroglobulin) and reduced echogenicity on thyroid sonogram in a patient with proper clinical features. The treatment remains symptomatic and based on the administration of synthetic thyroid hormones to correct the hypothyroidism as needed. Surgery is performed when the goiter is large enough to cause significant compression of the surrounding cervical structures, or when some areas of the thyroid gland mimic the features of a nodule whose cytology cannot be ascertained as benign. HT remains a complex and ever expanding disease of unknown pathogenesis that awaits prevention or novel forms of treatment.
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Schmeltz LR, Blevins TC, Aronoff SL, Ozer K, Leffert JD, Goldberg MA, Horowitz BS, Bertenshaw RH, Troya P, Cohen AE, Lanier RK, Wright C. Anatabine supplementation decreases thyroglobulin antibodies in patients with chronic lymphocytic autoimmune (Hashimoto's) thyroiditis: a randomized controlled clinical trial. J Clin Endocrinol Metab 2014; 99:E137-42. [PMID: 24178792 PMCID: PMC3928963 DOI: 10.1210/jc.2013-2951] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
CONTEXT Hashimoto's thyroiditis is less prevalent in tobacco smokers. Anatabine, an alkaloid found in Solanaceae plants including tobacco, has been reported to ameliorate a mouse model of Hashimoto's thyroiditis. OBJECTIVE The effects of anatabine in patients with Hashimoto's thyroiditis were studied. DESIGN, SETTING, PATIENTS, AND INTERVENTION This was a double-blind, randomized, placebo-controlled multisite study. A total of 146 patients (70 treated with anatabine and 76 with placebo) completed the study. Approximately 50% of patients in each group were taking levothyroxine. Anatabine lozenges (9-24 mg/d) or placebo, each containing vitamins A and D3, were administered orally 3 times a day for 3 months. MAIN OUTCOME MEASURES Serum thyroperoxidase antibody (TPOAb) and thyroglobulin antibody (TgAb) levels were assessed. Safety was assessed through adverse events, clinical laboratory evaluations, and vital sign measurements. RESULTS Anatabine-treated patients had a significant reduction in absolute serum TgAb levels from baseline by study end relative to those receiving placebo (P=.027); however, there were no significant changes or differences in treatment group means for TPOAb or TgAb levels. Mean±SD TgAb values decreased by 46.2±101.1 and 3.9±83.9 World Health Organization units for the anatabine and placebo groups, respectively. Significantly more patients had a >20% drop in TgAb levels in the anatabine than placebo group (P=.023). Overall, the anatabine supplement was safe and well tolerated, although significantly (P<.05) more patients in the anatabine group reported adverse events. CONCLUSIONS These results demonstrate an immunological effect of anatabine on TgAb levels. Further studies are warranted to determine the longer-term effects and possible actions of anatabine on the course of Hashimoto's thyroiditis.
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Affiliation(s)
- Lowell R Schmeltz
- Associated Endocrinologists, PC (L.R.S.), West Bloomfield, Michigan 48322; Texas Diabetes and Endocrinology (T.C.B.), Austin, Texas 78731; Endocrine Associates of Dallas (S.L.A.), Dallas, Texas 75231; Texas Diabetes and Endocrinology (K.O.), Round Rock, Texas 78681; North Texas Endocrine Center (J.D.L.), Dallas, Texas 75231; New Jersey Physicians, LLC (M.A.G.), Clifton, New Jersey 07012; Metabolic Research Institute, Inc (B.S.H.), West Palm Beach, Florida 33401; Diabetes and Endocrine Associates (R.H.B.), La Grange, Illinois 60525; Bay Area Endocrinology Associates, LLC (P.T.), Tampa, Florida 33614; and Rock Creek Pharmaceuticals, Inc (A.E.C., R.K.L., C.W.), Gloucester, Massachusetts 01930
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23
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Lanier RK, Cohen AE, Weinkle SH. Effects of a facial cream containing the minor alkaloid anatabine on improving the appearance of the skin in mild to moderate rosacea: an open-label case series study. Case Rep Dermatol 2013; 5:347-56. [PMID: 24348385 PMCID: PMC3861860 DOI: 10.1159/000357019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Background Current medical and scientific research indicates that rosacea, a chronic and often debilitating skin condition that primarily affects the central face, may be caused by an overactive or excessive inflammatory immune response. Regardless of etiology, the accompanying redness and inflammation is unsightly and difficult for the patient. Anatabine is an alkaloid from the plant family Solanaceae that has been shown in several preclinical studies to modulate proinflammatory signaling pathways. Objective A cream containing anatabine was developed and evaluated in an open-label case series study for safety and effects on the appearance of the skin in 10 patients with mild to moderate rosacea. Methods Patients applied the cream to the face twice daily for a period of 30 days. Patients and the study physician completed safety and efficacy assessments at study end. Results Results showed that 50% of the patients self-reported improvement in the appearance of their skin, and the physician noted improvement in 70% of the patients. Photographs taken before and after 30 days of cream use provide visual evidence of the improvement in several patients. There were no complications or adverse events reported by any of the patients in the study, indicating that the anatabine cream was safe and very well tolerated. Conclusion The results of this open-label case series show that a facial cream containing anatabine can improve the appearance of the skin in patients with mild to moderate rosacea and suggest that a double-blind, vehicle-controlled trial in a larger number of subjects is warranted.
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Affiliation(s)
- Ryan K Lanier
- Rock Creek Pharmaceuticals, Inc., Gloucester, Mass., USA
| | - Amy E Cohen
- Rock Creek Pharmaceuticals, Inc., Gloucester, Mass., USA
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Lanier RK, Gibson KD, Cohen AE, Varga M. Effects of dietary supplementation with the solanaceae plant alkaloid anatabine on joint pain and stiffness: results from an internet-based survey study. CLINICAL MEDICINE INSIGHTS-ARTHRITIS AND MUSCULOSKELETAL DISORDERS 2013; 6:73-84. [PMID: 24250235 PMCID: PMC3825642 DOI: 10.4137/cmamd.s13001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Anatabine is a Solanaceae plant family alkaloid marketed in the United States as a dietary supplement. It has demonstrated anti-inflammatory effects in vivo and in vitro, and may be useful for musculoskeletal aches and pains. The purpose of this internet-based survey study was to provide more information about anatabine users who report benefits for joint pain or stiffness. Of the 282 survey respondents, 232 (82%) reported a benefit from anatabine supplementation for one or more joint pain conditions, most commonly the knee, wrists/hands/fingers, shoulder, and back, most often due to osteoarthritis or injury to the joint. Mean scores of joint pain and stiffness were significantly (P < 0.0001) reduced after starting anatabine supplementation, and for most respondents joint pain was virtually eliminated. Around 90% of all individuals rated the effect of anatabine supplementation as good or excellent for joint pain, stiffness, functionality, and overall effects. These results provide evidence that anatabine supplementation can lead to substantial improvement of musculoskeletal aches, pains, and stiffness, and can provide benefits in some individuals for various medical conditions in multiple joint locations.
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Affiliation(s)
- Ryan K Lanier
- Rock Creek Pharmaceuticals, Inc., Gloucester, Massachusetts, USA
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Mammen JS, Ghazarian SR, Rosen A, Ladenson PW. Patterns of interferon-alpha-induced thyroid dysfunction vary with ethnicity, sex, smoking status, and pretreatment thyrotropin in an international cohort of patients treated for hepatitis C. Thyroid 2013; 23:1151-8. [PMID: 23517287 PMCID: PMC3770239 DOI: 10.1089/thy.2012.0565] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
BACKGROUND Interferon-alpha (IFNα)-induced thyroid dysfunction occurs in up to 20% of patients undergoing therapy for hepatitis C. The diversity of thyroid disease presentations suggests that several different pathological mechanisms are involved, such as autoimmunity and direct toxicity. Elucidating the relationships between risk factors and disease phenotype provides insight into the mechanisms of disease pathophysiology. METHODS We studied 869 euthyroid patients from the ACHIEVE 2/3 trial, a randomized international clinical trial comparing pegylated-IFNα2a weekly or albumin-IFNα2b every 2 weeks for up to 24 weeks in patients with hepatitis C, genotype 2 or 3, from 136 centers. The study population was 60% male and 55% white. Serum thyrotropin (TSH) and free thyroxine were measured before therapy, monthly during treatment from week 8, and at 4- and 12-week follow-up visits. RESULTS Overall, 181 (20.8%) participants had at least one abnormal TSH during the study. Low TSH occurred in 71 (8.2%), of whom 30 (3.5%) had a suppressed TSH below 0.1 mU/L. Hypothyroidism occurred in 53 patients (6.1%), with peak TSH above 10 mU/L in 12 patients (1.4%). Fifty-seven patients had a biphasic thyroiditis (6.6%), with extreme values for the nadir and/or peak TSH in all but one. Medical therapy was given to one thyrotoxic patient, four hypothyroid patients, and 26 biphasic thyroiditis patients. Multivariate logistic regression analysis demonstrated that biphasic thyroiditis is associated with being female and higher pretreatment serum TSH, whereas being Asian or a current smoker decreased the risk of thyroiditis. Hypo- and hyperthyroidism are most strongly predicted by the pretreatment TSH. CONCLUSIONS Biphasic thyroiditis accounted for the majority (58%) of clinically relevant IFNα-induced thyroid dysfunction. We confirmed our recent findings in a related cohort that female sex is a risk factor for thyroiditis but not hypothyroidism. Further, in this large multiethnic study, the risk of thyroiditis is dramatically increased, specifically for white women. Smoking was found to be protective of thyroiditis. These results support closer monitoring of women and those with a serum TSH at the extremes of the normal range during therapy so that prompt intervention can mitigate the consequences of thyroid dysfunction associated with IFNα treatment.
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Affiliation(s)
- Jennifer S. Mammen
- Division of Endocrinology and Metabolism, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Sharon R. Ghazarian
- Division of Biostatistics, Epidemiology and Data Management Core, Center for Child and Community Health Research; Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Antony Rosen
- Division of Rheumatology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Paul W. Ladenson
- Division of Endocrinology and Metabolism, Johns Hopkins University School of Medicine, Baltimore, Maryland
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26
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McLeod DSA. Autoimmune thyroid disease: a novel risk factor for atherosclerosis? Endocrine 2013; 44:8-10. [PMID: 23579639 DOI: 10.1007/s12020-013-9952-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2013] [Accepted: 04/04/2013] [Indexed: 01/07/2023]
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Wiersinga WM. Smoking and thyroid. Clin Endocrinol (Oxf) 2013; 79:145-51. [PMID: 23581474 DOI: 10.1111/cen.12222] [Citation(s) in RCA: 230] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2013] [Revised: 04/03/2013] [Accepted: 04/08/2013] [Indexed: 02/06/2023]
Abstract
Current smoking in population surveys is associated with a slight dose-dependent fall of serum TSH, likely secondary to a rise of serum FT4 and FT3 induced by activation of the sympathetic nervous system; it is independent of iodine intake. In contrast, the slightly greater thyroid size in smokers is observed in iodine-deficient but not in iodine-sufficient areas and caused by competitive inhibition of thyroidal iodide uptake by thiocyanate. Smokers have an increased prevalence of nontoxic goitre and thyroid multinodularity, at least in iodine-deficient areas. Current smoking reduces dose dependently the risk of thyroid cancer, which is more pronounced for papillary than for follicular types; the risk in former smokers approaches that of never smokers. The lower TSH and lower body mass index in smokers might contribute to this reduced risk. Current smoking lowers the risk of developing thyroid peroxidase and thyroglobulin antibodies and subclinical and overt autoimmune hypothyroidism; the effect is dose dependent, but disappears within 3 years after quitting smoking. There is evidence from an animal model of experimental autoimmune thyroiditis that anti-inflammatory effects of nicotine are involved. In contrast, smoking is a dose-dependent risk factor for Graves' hyperthyroidism and especially for Graves' ophthalmopathy. Smoking is related to a higher recurrence rate of Graves' hyperthyroidism, a higher risk on Graves' ophthalmopathy after 131I therapy and a less favourable outcome of GO treatment with steroids or retrobulbar irradiation. The observed associations with smoking likely indicate causal relationships in view of consistent associations across studies, the presence of dose-response effects and disappearance of associations after cessation of smoking.
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Affiliation(s)
- Wilmar M Wiersinga
- Department of Endocrinology & Metabolism, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands.
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Nielsen SS, Franklin GM, Longstreth WT, Swanson PD, Checkoway H. Nicotine from edible Solanaceae and risk of Parkinson disease. Ann Neurol 2013; 74:472-7. [PMID: 23661325 DOI: 10.1002/ana.23884] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2012] [Revised: 01/27/2013] [Accepted: 03/01/2013] [Indexed: 01/05/2023]
Abstract
OBJECTIVE To test whether risk of Parkinson disease (PD) is associated with consumption of nicotine-containing edibles from the same botanical family as tobacco, Solanaceae, including peppers, tomatoes, and potatoes. METHODS In a population-based study with 490 newly diagnosed idiopathic PD cases diagnosed during 1992-2008 at the University of Washington Neurology Clinic or Group Health Cooperative in western Washington State and 644 unrelated, neurologically normal controls, we examined whether PD was associated with self-reported typical frequency of consumption of peppers, tomatoes, tomato juice, and potatoes during adulthood, while adjusting for consumption of other vegetables, age, sex, race/ethnicity, tobacco use, and caffeine. RESULTS PD was inversely associated with consumption of all edible Solanaceae combined (relative risk [RR] = 0.81, 95% confidence interval [CI] = 0.65-1.01 per time per day), but not consumption of all other vegetables combined (RR = 1.00, 95% CI = 0.92-1.10). The trend strengthened when we weighted edible Solanaceae by nicotine concentration (ptrend = 0.004). An inverse association was also evident for peppers specifically (ptrend = 0.005). The potentially protective effect of edible Solanaceae largely occurred in men and women who had never used tobacco or who had smoked cigarettes < 10 years. INTERPRETATION Dietary nicotine or other constituents of tobacco and peppers may reduce PD risk. However, confirmation and extension of these findings are needed to strengthen causal inferences that could suggest possible dietary or pharmaceutical interventions for PD prevention.
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Affiliation(s)
- Susan Searles Nielsen
- Departments of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA
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Paris D, Beaulieu-Abdelahad D, Mullan M, Ait-Ghezala G, Mathura V, Bachmeier C, Crawford F, Mullan MJ. Amelioration of experimental autoimmune encephalomyelitis by anatabine. PLoS One 2013; 8:e55392. [PMID: 23383175 PMCID: PMC3559544 DOI: 10.1371/journal.pone.0055392] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2012] [Accepted: 12/19/2012] [Indexed: 12/04/2022] Open
Abstract
Anatabine, a naturally occurring alkaloid, is becoming a commonly used human food supplement, taken for its claimed anti-inflammatory properties although this has not yet been reported in human clinical trials. We have previously shown that anatabine does display certain anti-inflammatory properties and readily crosses the blood-brain barrier suggesting it could represent an important compound for mitigating neuro-inflammatory conditions. The present study was designed to determine whether anatabine had beneficial effects on the development of experimental autoimmune encephalomyelitis (EAE) in mice and to precisely determine its underlying mechanism of action in this mouse model of multiple sclerosis (MS). We found that orally administered anatabine markedly suppressed neurological deficits associated with EAE. Analyses of cytokine production in the periphery of the animals revealed that anatabine significantly reduced Th1 and Th17 cytokines known to contribute to the development of EAE. Anatabine appears to significantly suppress STAT3 and p65 NFκB phosphorylation in the spleen and the brain of EAE mice. These two transcription factors regulate a large array of inflammatory genes including cytokines suggesting a mechanism by which anatabine antagonizes pro-inflammatory cytokine production. Additionally, we found that anatabine alleviated the infiltration of macrophages/microglia and astrogliosis and significantly prevented demyelination in the spinal cord of EAE mice. Altogether our data suggest that anatabine may be effective in the treatment of MS and should be piloted in clinical trials.
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Affiliation(s)
- Daniel Paris
- Roskamp Institute, Sarasota, Florida, United States of America.
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Laurberg P, Andersen S, Pedersen IB, Knudsen N, Carlé A. Prevention of autoimmune hypothyroidism by modifying iodine intake and the use of tobacco and alcohol is manoeuvring between Scylla and Charybdis. Hormones (Athens) 2013; 12:30-8. [PMID: 23624129 DOI: 10.1007/bf03401284] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Although autoimmune hypothyroidism has generally been considered to be a disease that mainly develops because of genetic aberrations and for which adjustment of environment would bring about but slight risk modification, this understanding is increasingly appearing to be incorrect. We describe how iodine intake, smoking cessation and alcohol intake are all strong modifiers of risk that, combined, may influence risk by a factor of up to 30. Unfortunately, promotion of an environment leading to substantial lowering of the risk of autoimmune hypothyroidism (i.e. improvement of dietary iodine deficiency, decrease or cessation of smoking, and moderate alcohol intake) is not incorporated within current public health promoting programs. Nevertheless, it is increasingly becoming evident that knowledge of the importance of these factors for disease development is likely to assist in the planning of health promotion programs, while it will surely also be of value in the care of individual patients.
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Affiliation(s)
- Peter Laurberg
- Department of Endocrinology, Aalborg Hospital, Aalborg, Denmark.
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Paris D, Beaulieu-Abdelahad D, Abdullah L, Bachmeier C, Ait-Ghezala G, Reed J, Verma M, Crawford F, Mullan M. Anti-inflammatory activity of anatabine via inhibition of STAT3 phosphorylation. Eur J Pharmacol 2013. [DOI: 10.1016/j.ejphar.2012.11.017] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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