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Miranda Furtado CL, Hansen M, Kogure GS, Ribeiro VB, Taylor N, Racy Soares M, Ferriani RA, Aston KI, Jenkins T, dos Reis RM. Resistance and aerobic training increases genome-wide DNA methylation in women with polycystic ovary syndrome. Epigenetics 2024; 19:2305082. [PMID: 38245873 PMCID: PMC10802204 DOI: 10.1080/15592294.2024.2305082] [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: 07/21/2023] [Accepted: 01/09/2024] [Indexed: 01/23/2024] Open
Abstract
Physical activity is a first-line treatment for polycystic ovary syndrome (PCOS). Resistance or aerobic exercise improves metabolic complications, reproductive outcomes, and quality of life in PCOS. DNA methylation reprogramming during exercise may be the major modifier behind these changes. We sought to evaluate genome-wide DNA methylation changes after supervised resistance and aerobic exercise in women with PCOS. Exercises were performed in 56 women with PCOS (resistance, n = 30; aerobic, n = 26), for 16 weeks (wks), three times per week, in 50-minute to one-hour sessions. Anthropometric indices and hormonal and metabolic parameters were measured before and after training. Genome-wide leukocyte DNA methylation was analysed by Infinium Human MethylationEPIC 850K BeadChip microarrays (Illumina). Both resistance and aerobic exercise improved anthropometric indices, metabolic dysfunction, and hyperandrogenism in PCOS after the training programme, but no differences were observed between the two exercises. Resistance and aerobic exercise increased genome-wide DNA methylation, although resistance changed every category in the CpG island context (islands, shores, shelve, and open sea), whereas aerobic exercise altered CpG shores and the open sea. Using a stringent FDR (>40), 6 significantly differentially methylated regions (DMRs) were observed in the resistance exercise cohort and 14 DRMs in the aerobic cohort, all of which were hypermethylated. The increase in genome-wide DNA methylation may be related to the metabolic and hormonal changes observed in PCOS after resistance and aerobic exercise. Since the mammalian genome is hypermethylated globally to prevent genomic instability and ageing, resistance and aerobic exercise may promote health and longevity through environmentally induced epigenetic changes.
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Affiliation(s)
- Cristiana Libardi Miranda Furtado
- Department of Gynecology and Obstetrics, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Brazil
- Experimental Biology Center, Graduate Program in Medical Sciences, University of Fortaleza, Fortaleza, Ceará, Brazil
- Drug Research and Development Center, Postgraduate Program in Translational Medicine, Federal University of Ceará, Fortaleza, Brazil
| | - Megan Hansen
- Department of Cell Biology and Physiology, Brigham Young University, Provo, UT, USA
| | - Gislaine Satyko Kogure
- Department of Gynecology and Obstetrics, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Brazil
| | - Victor Barbosa Ribeiro
- Department of Gynecology and Obstetrics, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Brazil
| | - Nathanael Taylor
- Department of Cell Biology and Physiology, Brigham Young University, Provo, UT, USA
| | - Murilo Racy Soares
- Department of Gynecology and Obstetrics, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Brazil
| | - Rui Alberto Ferriani
- Department of Gynecology and Obstetrics, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Brazil
| | - Kenneth Ivan Aston
- Department of Surgery, University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Timothy Jenkins
- Department of Cell Biology and Physiology, Brigham Young University, Provo, UT, USA
- Department of Surgery, University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Rosana Maria dos Reis
- Department of Gynecology and Obstetrics, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Brazil
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Cavalcante RBDM, Leão LMCSM, Tavares ABW, Lopes KG, Kraemer-Aguiar LG. Fat Distribution and its Correlation with Insulin Resistance, Androgen Markers, and Proinflammatory Cytokines in Polycystic Ovary Syndrome. Horm Metab Res 2024. [PMID: 39226924 DOI: 10.1055/a-2386-9281] [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] [Indexed: 09/05/2024]
Abstract
The high cardiometabolic risk associated with polycystic ovary syndrome (PCOS) may be linked to central fat accumulation. This study compared fat distribution between women with PCOS and controls matched by body mass index. It also sought to determine if insulin resistance (IR), androgens, or inflammatory markers correlate with body composition parameters in PCOS patients. In total, thirty-five women with PCOS and 37 controls, aged 18-40 years, were included. Hormonal/metabolic profiles, inflammatory biomarkers [tumor necrosis factor-alpha (TNF-α and interleukin-6 (IL-6)], anthropometry (waist circumference, waist-to-hip ratio, lipid accumulation product [LAP], visceral adiposity index [VAI]), and body composition assessed through dual-energy X-ray absorptiometry were assessed. The PCOS group exhibited significantly higher androgen levels and markers of IR. However, levels of TNF-α and IL-6 were comparable between the groups. Despite having similar total body fat mass (FM), the PCOS group had excessive central fat, including increased truncal FM and visceral adipose tissue (VAT). In PCOS, androgens were not associated with body fat or its distribution. IL-6 was positively correlated with total and truncal FM, while insulinemia and the homeostatic model assessment for IR were positively associated with VAT, as well as with total and truncal FM. Although anthropometric measurements and indices were positively associated with DXA-derived central FM parameters, our data suggest that LAP is the most effective tool for assessing central fat deposition and metabolic dysfunction in the PCOS patients studied herein. Furthermore, in this population, IR, rather than androgens or proinflammatory cytokines, is more closely associated with abdominal obesity.
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Affiliation(s)
- Rebeca Bandeira de Melo Cavalcante
- Postgraduate Program in Clinical and Experimental Pathophysiology, Rio de Janeiro State University Faculty of Medical Sciences, Rio de Janeiro, Brazil
| | | | - Ana Beatriz Winter Tavares
- Postgraduate Program in Clinical and Experimental Pathophysiology, Rio de Janeiro State University Faculty of Medical Sciences, Rio de Janeiro, Brazil
- Endocrinology Department of Internal Medicine, Rio de Janeiro State University Faculty of Medical Sciences, Rio de Janeiro, Brazil
| | - Karynne Grutter Lopes
- Postgraduate Program in Clinical and Experimental Pathophysiology, Rio de Janeiro State University Faculty of Medical Sciences, Rio de Janeiro, Brazil
- Obesity Unit (SAI-Ob), Multiuser Clinical Research Center (CePeM), Pedro Ernesto University Hospital, Rio de Janeiro State University, Rio de Janeiro, Brazil
| | - Luiz Guilherme Kraemer-Aguiar
- Postgraduate Program in Clinical and Experimental Pathophysiology, Rio de Janeiro State University Faculty of Medical Sciences, Rio de Janeiro, Brazil
- Endocrinology Department of Internal Medicine, Rio de Janeiro State University Faculty of Medical Sciences, Rio de Janeiro, Brazil
- Obesity Unit (SAI-Ob), Multiuser Clinical Research Center (CePeM), Pedro Ernesto University Hospital, Rio de Janeiro State University, Rio de Janeiro, Brazil
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Osmari DG, Garcez A, Dias-da-Costa JS, Olinto MTA. Association between obesity and common mental disorders in women: a population-based study in Southern Brazil. Soc Psychiatry Psychiatr Epidemiol 2024; 59:1577-1585. [PMID: 37410161 DOI: 10.1007/s00127-023-02530-z] [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: 09/18/2022] [Accepted: 06/27/2023] [Indexed: 07/07/2023]
Abstract
PURPOSE The study aimed to investigate the relationship between obesity and common mental disorders (CMD) among women. METHODS This is a cross-sectional population-based study with a representative sample of 981 adult women (20-60 years of age) living in the urban area of the municipality of São Leopoldo, RS, Brazil, in 2015. The presence of CMD was assessed using the Self-Reporting Questionnaire (SRQ-20 ≥ 8). Obesity was defined by body mass index (BMI ≥ 30.0 kg/m2). Prevalence ratios (PRs) for the association between obesity and CMD were measured by Poisson regression with robust variance, including their respective 95% confidence intervals (CIs). RESULTS The mean age of the sample was 40.3 years (standard deviation = 11.4 years). The prevalence of CMD was 33.7% (95% CI 30.8-36.7), while obesity was 31.2% (95% CI 28.3-34.1). The occurrence of CMD was higher in women with low levels of education and belonging to lower economic class, as well as smokers and those who were insufficiently active. Obesity was more prevalent in older women (50-60 years old) with less schooling, who did not consume alcohol, and those who were insufficiently active. After adjusting for potential confounding factors, women with obesity were 22% more likely to have CMD when compared to those without obesity (PR = 1.22; 95% CI 1.02-1.45; p = 0.030). CONCLUSIONS This study demonstrated a significant association between obesity and the presence of CMD among women. Additionally, the prevalence of obesity and CMD were high in this population group.
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Affiliation(s)
- Débie Garlet Osmari
- Post-Graduate Program in Collective Health, University of Vale do Rio dos Sinos, UNISINOS, São Leopoldo, RS, Brazil
| | - Anderson Garcez
- Post-Graduate Program in Nutrition Sciences, Federal University of Health Science of Porto Alegre, UFCSPA, Porto Alegre, RS, Brazil
| | - Juvenal Soares Dias-da-Costa
- Post-Graduate Program in Collective Health, University of Vale do Rio dos Sinos, UNISINOS, São Leopoldo, RS, Brazil
| | - Maria Teresa Anselmo Olinto
- Post-Graduate Program in Food, Nutrition and Health, Federal University of Rio Grande do Sul, UFRGS, R. Ramiro Barcelos, 2400, Santa Cecília, Porto Alegre, RS, CEP 90035-002, Brazil.
- Post-Graduate Program in Medical Sciences: Endocrinology, Federal University of Rio Grande do Sul State, UFRGS, Porto Alegre, RS, Brazil.
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Su X, Patel N, Zhu S, Zhou X, Chen Y, Chen J, Mo X. Association between serum vitamin A and body mass index in adolescents from NHANES 1999 to 2006. Sci Rep 2024; 14:10859. [PMID: 38740865 DOI: 10.1038/s41598-024-61437-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 05/06/2024] [Indexed: 05/16/2024] Open
Abstract
Vitamin A plays a pivotal role in health, particularly in regulating fat metabolism. Despite its significance, research into the direct relationship between vitamin A levels and obesity, especially among adolescents, is sparse. This study aims to explore this association within the adolescent population in the United States. This cross-sectional study analyzed the National Health and Nutrition Examination Survey (NHANES) data from 1999 to 2006, with 8218 participants. The levels of vitamin A in the serum were determined based on utilizing high-performance liquid chromatography with photodiode array detection. The relationship between serum vitamin A concentrations and body mass index (BMI) was evaluated using weighted multiple linear regression models, incorporating subgroup analyses by sex and race/ethnicity to provide nuanced insights. A positive correlation was observed between serum vitamin A levels and BMI, with BMI increasing progressively across vitamin A quartiles (P < 0.001). Using the lowest quartile of serum vitamin A as a reference, the BMI of the highest quartile of serum vitamin A was 1.236 times higher (95% CI 0.888, 1.585). Subgroup analyses revealed that this positive association persisted across different genders and racial/ethnic groups (P < 0.001). Notably, smooth curve fitting and saturation threshold analysis unveiled an inverted U-shaped relationship between serum vitamin A and BMI among female adolescents, non-Hispanic Whites, Mexican Americans, and other races/ethnicities groups. Our study substantiates the association between serum vitamin A levels and the risk of obesity/overweight status in adolescents. The findings suggest the potential serum vitamin A is an early biomarker for identifying obesity risk, although further studies are needed to determine to clarify its role as a contributing factor to obesity. This study contributes to the understanding of nutritional influences on adolescent obesity, highlighting the need for targeted interventions based on serum biomarkers.
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Affiliation(s)
- Xiaoqi Su
- Department of Ultrasound, Children's Hospital of Nanjing Medical University, Nanjing, 210008, China
| | - Nishant Patel
- Department of Cardiothoracic Surgery, Children's Hospital of Nanjing Medical University, Nanjing, 210008, China
- School of Public Health, Nanjing Medical University, Nanjing, 211666, China
| | - Shanliang Zhu
- Department of Ultrasound, Children's Hospital of Nanjing Medical University, Nanjing, 210008, China
| | - Xin Zhou
- Department of Ultrasound, Children's Hospital of Nanjing Medical University, Nanjing, 210008, China
| | - Ye Chen
- Department of Ultrasound, Children's Hospital of Nanjing Medical University, Nanjing, 210008, China
| | - Jun Chen
- Department of Ultrasound, Children's Hospital of Nanjing Medical University, Nanjing, 210008, China.
| | - Xuming Mo
- Department of Cardiothoracic Surgery, Children's Hospital of Nanjing Medical University, Nanjing, 210008, China.
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Hirschberg AL. Hyperandrogenism and Cardiometabolic Risk in Pre- and Postmenopausal Women-What Is the Evidence? J Clin Endocrinol Metab 2024; 109:1202-1213. [PMID: 37886900 PMCID: PMC11031217 DOI: 10.1210/clinem/dgad590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Indexed: 10/28/2023]
Abstract
Hyperandrogenism in women, such as polycystic ovary syndrome, ovarian hyperthecosis, congenital adrenal hyperplasia, and androgen-secreting tumors, are all associated with increased prevalence of cardiovascular risk factors that include type 2 diabetes, hypertension, dyslipidemia, and metabolic syndrome. However, it is not clear whether this also implies enhanced risk of cardiovascular disease and mortality. Furthermore, the involvement of obesity and menopausal status for cardiometabolic risk in these women has not been elucidated. Based on the most recent systematic reviews and meta-analyses, this review summarizes the latest scientific evidence. To conclude, hyperandrogenism in premenopausal women is associated with enhanced prevalence of cardiovascular risk factors, as well as increased risk of cardiovascular disease and mortality, independently of body mass index. In contrast, elevated cardiovascular risk factors and increased risk of myocardial infarction and stroke in hyperandrogenic postmenopausal women are dependent on obesity. Furthermore, the overall risk of cardiovascular disease and coronary artery disease in hyperandrogenic postmenopausal women is similar to controls. The reason for a reduced cardiometabolic risk after menopause in hyperandrogenic women compared to nonhyperandrogenic women is not clear. It can be speculated that the difference in endocrine balance and metabolic status between women with and without hyperandrogenism might decrease after menopause because hyperandrogenism usually improves with age, whereas menopausal transition itself is associated with androgen dominance and abdominal obesity. Although we have gained increased knowledge about cardiometabolic risks in women with hyperandrogenism, it must be acknowledged that the quality of data is overall low. More research is needed, especially longer and larger follow-up studies in women with hyperandrogenism of different etiologies and phenotypes.
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Affiliation(s)
- Angelica Lindén Hirschberg
- Department of Women's and Children's Health, Karolinska Institutet and Department of Gynecology and Reproductive Medicine, Karolinska University Hospital, SE-171 76 Stockholm, Sweden
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Eng PC, Phylactou M, Qayum A, Woods C, Lee H, Aziz S, Moore B, Miras AD, Comninos AN, Tan T, Franks S, Dhillo WS, Abbara A. Obesity-Related Hypogonadism in Women. Endocr Rev 2024; 45:171-189. [PMID: 37559411 PMCID: PMC10911953 DOI: 10.1210/endrev/bnad027] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 06/02/2023] [Accepted: 08/07/2023] [Indexed: 08/11/2023]
Abstract
Obesity-related hypogonadotropic hypogonadism is a well-characterized condition in men (termed male obesity-related secondary hypogonadism; MOSH); however, an equivalent condition has not been as clearly described in women. The prevalence of polycystic ovary syndrome (PCOS) is known to increase with obesity, but PCOS is more typically characterized by increased gonadotropin-releasing hormone (GnRH) (and by proxy luteinizing hormone; LH) pulsatility, rather than by the reduced gonadotropin levels observed in MOSH. Notably, LH levels and LH pulse amplitude are reduced with obesity, both in women with and without PCOS, suggesting that an obesity-related secondary hypogonadism may also exist in women akin to MOSH in men. Herein, we examine the evidence for the existence of a putative non-PCOS "female obesity-related secondary hypogonadism" (FOSH). We précis possible underlying mechanisms for the occurrence of hypogonadism in this context and consider how such mechanisms differ from MOSH in men, and from PCOS in women without obesity. In this review, we consider relevant etiological factors that are altered in obesity and that could impact on GnRH pulsatility to ascertain whether they could contribute to obesity-related secondary hypogonadism including: anti-Müllerian hormone, androgen, insulin, fatty acid, adiponectin, and leptin. More precise phenotyping of hypogonadism in women with obesity could provide further validation for non-PCOS FOSH and preface the ability to define/investigate such a condition.
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Affiliation(s)
- Pei Chia Eng
- Section of Endocrinology and Investigative Medicine, Imperial College London, London W12 0NN, UK
- Department of Endocrinology, National University of Singapore, Singapore 117549
| | - Maria Phylactou
- Section of Endocrinology and Investigative Medicine, Imperial College London, London W12 0NN, UK
- Department of Endocrinology, Imperial College Healthcare NHS Trust, London W12 0NN, UK
| | - Ambreen Qayum
- Section of Endocrinology and Investigative Medicine, Imperial College London, London W12 0NN, UK
- Department of Endocrinology, Imperial College Healthcare NHS Trust, London W12 0NN, UK
| | - Casper Woods
- Section of Endocrinology and Investigative Medicine, Imperial College London, London W12 0NN, UK
| | - Hayoung Lee
- Section of Endocrinology and Investigative Medicine, Imperial College London, London W12 0NN, UK
| | - Sara Aziz
- Section of Endocrinology and Investigative Medicine, Imperial College London, London W12 0NN, UK
| | - Benedict Moore
- Section of Endocrinology and Investigative Medicine, Imperial College London, London W12 0NN, UK
| | - Alexander D Miras
- Section of Endocrinology and Investigative Medicine, Imperial College London, London W12 0NN, UK
- Department of Endocrinology, Imperial College Healthcare NHS Trust, London W12 0NN, UK
| | - Alexander N Comninos
- Section of Endocrinology and Investigative Medicine, Imperial College London, London W12 0NN, UK
- Department of Endocrinology, Imperial College Healthcare NHS Trust, London W12 0NN, UK
| | - Tricia Tan
- Section of Endocrinology and Investigative Medicine, Imperial College London, London W12 0NN, UK
- Department of Endocrinology, Imperial College Healthcare NHS Trust, London W12 0NN, UK
| | - Steve Franks
- Section of Endocrinology and Investigative Medicine, Imperial College London, London W12 0NN, UK
- Department of Endocrinology, Imperial College Healthcare NHS Trust, London W12 0NN, UK
| | - Waljit S Dhillo
- Section of Endocrinology and Investigative Medicine, Imperial College London, London W12 0NN, UK
- Department of Endocrinology, Imperial College Healthcare NHS Trust, London W12 0NN, UK
| | - Ali Abbara
- Section of Endocrinology and Investigative Medicine, Imperial College London, London W12 0NN, UK
- Department of Endocrinology, Imperial College Healthcare NHS Trust, London W12 0NN, UK
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Abstract
Obesity has been recognized to be increasing globally and is designated a disease with adverse consequences requiring early detection and appropriate care. In addition to being related to metabolic syndrome disorders such as type 2 diabetes, hypertension, stroke, and premature coronary artery disease. Obesity is also etiologically linked to several cancers. The non-gastrointestinal cancers are breast, uterus, kidneys, ovaries, thyroid, meningioma, and thyroid. Gastrointestinal (GI) cancers are adenocarcinoma of the esophagus, liver, pancreas, gallbladder, and colorectal. The brighter side of the problem is that being overweight and obese and cigarette smoking are mostly preventable causes of cancers. Epidemiology and clinical studies have revealed that obesity is heterogeneous in clinical manifestations. In clinical practice, BMI is calculated by dividing a person's weight in kilograms by the square of the person's height in square meters (kg/m2). A BMI above 30 kg/m2 (defining obesity in many guidelines) is considered obesity. However, obesity is heterogeneous. There are subdivisions for obesity, and not all obesities are equally pathogenic. Adipose tissue, in particular, visceral adipose tissue (VAT), is endocrine and abdominal obesity (a surrogate for VAT) is evaluated by waist-hip measurements or just waist measures. Visceral Obesity, through several hormonal mechanisms, induces a low-grade chronic inflammatory state, insulin resistance, components of metabolic syndrome, and cancers. Metabolically obese, normal-weight (MONW) individuals in several Asian countries may have BMI below normal levels to diagnose obesity but suffer from many obesity-related complications. Conversely, some people have high BMI but are generally healthy with no features of metabolic syndrome. Many clinicians advise weight loss by dieting and exercise to metabolically healthy obese with large body habitus than to individuals with metabolic obesity but normal BMI. The GI cancers (esophagus, pancreas, gallbladder, liver, and colorectal) are individually discussed, emphasizing the incidence, possible pathogenesis, and preventive measures. From 2005 to 2014, most cancers associated with overweight and Obesity increased in the United States, while cancers related to other factors decreased. The standard recommendation is to offer or refer adults with a body mass index (BMI) of 30 or more to intensive, multicomponent behavioral interventions. However, the clinicians have to go beyond. They should critically evaluate BMI with due consideration for ethnicity, body habitus, and other factors that influence the type of obesity and obesity-related risks. In 2001, the Surgeon General's ``Call to Action to Prevent and Decrease Overweight and Obesity'' identified obesity as a critical public health priority for the United States. At government levels reducing obesity requires policy changes that improve the food and physical activity for all. However, implementing some policies with the most significant potential benefit to public health is politically tricky. The primary care physician, as well as subspecialists, should identify overweight and Obesity based on all the variable factors in the diagnosis. The medical community should address the prevention of overweight and Obesity as an essential part of medical care as much as vaccination in preventing infectious diseases at all levels- from childhood, to adolescence, and adults.
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Affiliation(s)
- Yuntao Zou
- Department of Medicine, Saint Peter's University Hospital, 125 Andover DR, Kendall Park, New Brunswick, NJ 08901, USA
| | - Capecomorin S Pitchumoni
- Department of Medicine, Saint Peter's University Hospital, 125 Andover DR, Kendall Park, New Brunswick, NJ 08901, USA.
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Gu D, Lu Y, Xu B, Tang X. Sex-Specific Contribution of Cardiometabolic Index in Predicting Metabolic Dysfunction-Associated Fatty Liver Disease: Insights from a General Population. Diabetes Metab Syndr Obes 2023; 16:3871-3883. [PMID: 38054037 PMCID: PMC10695138 DOI: 10.2147/dmso.s437413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Accepted: 11/20/2023] [Indexed: 12/07/2023] Open
Abstract
Background and Objective Evidence suggests that cardiometabolic index (CMI) has been identified as a novel obesity-related index associated with diabetes, hypertension, and cardiovascular disease. Current evidence suggests that the differences in sex hormones and regional fat distribution in both sexes are directly correlated with metabolic dysfunction-associated fatty liver disease (MAFLD) risk. This study aimed to investigate the diagnostic value of CMI in MAFLD in both sexes. Methods This retrospective study included 6107 subjects who underwent annual health check-ups from March 2021 to January 2022. CMI was calculated by multiplying the ratio of triglycerides and high-density lipoprotein cholesterol (TG/HDL-C) by waist-to-height ratio (WHtR). Multivariable logistic regression analysis and restricted cubic spline were used to investigate the association of CMI and MAFLD risk. Receiver operating characteristic curve analysis was conducted for the exploration of the diagnostic accuracies of obesity-related indicators. Areas under the curves (AUCs) with 95% CIs were calculated. Results Prevalence of MAFLD increased with elevated quartiles of CMI in both sexes. The median (IQR) age was 46.00 (18.00) years. Multivariate logistic regression analyses showed that higher CMI was independently associated with MAFLD, in which every additional standard deviation (SD) of CMI increased the risk of MAFLD (OR=2.72, 95% CI:2.35-3.15 for males; OR=3.26, 95% CI:2.36-4.51 for females). Subjects in the fourth quartile of CMI had the highest odds of MAFLD for males (OR=15.82, 95% CI:11.84-21.14) and females (OR=22.60, 95% CI:9.52-53.65)(all P for trend<0.001). Besides, CMI had a non-linearity association with MAFLD (all P for non-linearity<0.001). Furthermore, CMI exhibited the largest AUC compared to other obesity-related indexes in terms of discriminating MAFLD in males (AUC=0.796, 95% CI:0.782-0.810) and females (AUC=0.853, 95% CI:0.834-0.872). Conclusion CMI was a convenient indicator for the screening of MAFLD among Chinese adults. Females with high CMI had a better diagnostic value for MAFLD than males.
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Affiliation(s)
- Dongxing Gu
- Health Examination Center, Huadong Sanatorium, Wuxi, People’s Republic of China
| | - Yayun Lu
- Health Examination Center, Huadong Sanatorium, Wuxi, People’s Republic of China
| | - Baiqing Xu
- Health Examination Center, Huadong Sanatorium, Wuxi, People’s Republic of China
| | - Xuefeng Tang
- Department of Health Nursing, Huadong Sanatorium, Wuxi, People’s Republic of China
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9
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Zuo W, Liu X, Chen J, Zuo W, Yin Y, Nie X, Tang P, Huang Y, Yu Q, Hu Q, Zhou J, Tan Y, Huang X, Ren Q. Single-cell sequencing provides insights into the landscape of ovary in PCOS and alterations induced by CUMS. Am J Physiol Endocrinol Metab 2023; 325:E346-E362. [PMID: 37584608 DOI: 10.1152/ajpendo.00165.2023] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 08/08/2023] [Accepted: 08/08/2023] [Indexed: 08/17/2023]
Abstract
Polycystic ovary syndrome (PCOS) is a common endocrine disorder related to psychological distress. However, the mechanism underlying increased prevalence of depression in PCOS remained unclear. This study aimed to explore the unique transcriptional landscape of ovary and offered a platform to explore the mechanism of PCOS, as well as the influences caused by depression. The PCOS rat model was established by letrozole whereas PCOS rat model with depression was established by letrozole combined with chronic unpredicted mild stress (CUMS). Then single-cell RNA sequencing (scRNA-Seq) was applied to analyze the transcriptional features of rat ovaries. Granulosa cells (GCs) and fibroblasts (Fibros) accounted for the top two clusters of total 12 cell types. There were nine clusters in GCs, related to inflammatory response, endoplasmic reticulum (ER) stress, and steroidogenesis. The expression of differentially expressed genes (DEG) Hes1 was higher in PCOS and PCOS + CUMS groups, exhibiting enhanced expression by pseudotime and positively related to inflammation. Pseudotemporal analysis revealed that inflammation contributed to the different GCs distributions. Moreover, analysis of DEGs and gene ontology (GO) function enrichment revealed CUMS aggravated inflammation in PCOS GCs possibly via interferon signaling pathway. In theca cells (TCs), nine clusters were observed and some of them were relevant to inflammation, ER stress, and lipid metabolism. DEGs Ass1, Insl3, and Ifi27 were positively related to Cyp17a1, and Ces1d might contribute to the different trajectory of TCs. Subsequent scRNA-seq revealed a signature profile of endothelial cells (ECs) and Fibros, which suggest that inflammation-induced damage of ECs and Fibro, further exacerbated by CUMS. Finally, analysis of T cells and mononuclear phagocytes (MPs) revealed the existence of immune dysfunction, among which interferon signaling played a critical role. These findings provided more knowledge for a better understanding PCOS from the view of inflammation and identified new biomarkers and targets for the treatment of PCOS with psychological diseases.NEW & NOTEWORTHY In this study, we mapped the landscape of polycystic ovary syndrome (PCOS) ovary with rat model induced by letrozole and provided a novel insight into the molecular mechanism of PCOS accompanied by chronic unpredicted mild stress (CUMS) at single-cell transcriptomic level. These observations highlight the importance of inflammation in the pathogenesis of PCOS, which might also be the bridge between PCOS and psychological diseases.
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Affiliation(s)
- Wenting Zuo
- Department of Reproductive Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing, People's Republic of China
| | - Xiangfei Liu
- State Key Laboratory Cultivation Base for TCM Quality and Efficacy, Institute of TCM-Related Comorbid Depression, Nanjing University of Chinese Medicine, Nanjing, People's Republic of China
| | - Jianhuai Chen
- Department of Andrology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, People's Republic of China
| | - Wenren Zuo
- Department of Urology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, People's Republic of China
| | - Yanyun Yin
- Department of Reproductive Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing, People's Republic of China
| | - Xiaowei Nie
- Department of Reproductive Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing, People's Republic of China
| | - Peipei Tang
- Department of Reproductive Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing, People's Republic of China
| | - Yunke Huang
- Department of Gynaecology, Women's Hospital School of Zhejiang University, Hangzhou, People's Republic of China
| | - Qian Yu
- Department of Science and Technology, Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing, People's Republic of China
| | - Qiaoyun Hu
- Singleron Biotechnologies, Nanjing, People's Republic of China
| | - Jie Zhou
- Department of Traditional Chinese Medicine, The First People's Hospital of Nantong, Nantong, People's Republic of China
| | - Yong Tan
- Department of Reproductive Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing, People's Republic of China
| | - Xi Huang
- State Key Laboratory Cultivation Base for TCM Quality and Efficacy, Institute of TCM-Related Comorbid Depression, Nanjing University of Chinese Medicine, Nanjing, People's Republic of China
| | - Qingling Ren
- Department of Gynaecology, Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing, People's Republic of China
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Meng Y, Thornburg LL, Hoeger KM, Núñez ZR, Kautz A, Evans AT, Wang C, Miller RK, Groth SW, O’Connor TG, Barrett ES. Association between sex steroid hormones and subsequent hyperglycemia during pregnancy. Front Endocrinol (Lausanne) 2023; 14:1213402. [PMID: 37766683 PMCID: PMC10520461 DOI: 10.3389/fendo.2023.1213402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 08/08/2023] [Indexed: 09/29/2023] Open
Abstract
Objective Sex steroid hormones may play a role in insulin resistance and glucose dysregulation. However, evidence regarding associations between early-pregnancy sex steroid hormones and hyperglycemia during pregnancy is limited. The primary objective of this study was to assess the relationships between first trimester sex steroid hormones and the subsequent development of hyperglycemia during pregnancy; with secondary evaluation of sex steroid hormones levels in mid-late pregnancy, concurrent with and subsequent to diagnosis of gestational diabetes. Methods Retrospective analysis of a prospective pregnancy cohort study was conducted. Medically low-risk participants with no known major endocrine disorders were recruited in the first trimester of pregnancy (n=319). Sex steroid hormones in each trimester, including total testosterone, free testosterone, estrone, estradiol, and estriol, were assessed using high-performance liquid chromatography and tandem mass spectrometry. Glucose levels of the 1-hour oral glucose tolerance test and gestational diabetes diagnosis were abstracted from medical records. Multivariable linear regression models were fitted to assess the associations of individual first trimester sex steroids and glucose levels. Results In adjusted models, first trimester total testosterone (β=5.24, 95% CI: 0.01, 10.46, p=0.05) and free testosterone (β=5.98, 95% CI: 0.97, 10.98, p=0.02) were positively associated with subsequent glucose concentrations and gestational diabetes diagnosis (total testosterone: OR=3.63, 95% CI: 1.50, 8.78; free testosterone: OR=3.69; 95% CI: 1.56, 8.73). First trimester estrone was also positively associated with gestational diabetes (OR=3.66, 95% CI: 1.56, 8.55). In mid-late pregnancy, pregnant people with gestational diabetes had lower total testosterone levels (β=-0.19, 95% CI: -0.36, -0.02) after adjustment for first trimester total testosterone. Conclusion Early-pregnancy sex steroid hormones, including total testosterone, free testosterone, and estrone, were positively associated with glucose levels and gestational diabetes in mid-late pregnancy. These hormones may serve as early predictors of gestational diabetes in combination with other risk factors.
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Affiliation(s)
- Ying Meng
- School of Nursing, University of Rochester, Rochester, NY, United States
| | - Loralei L. Thornburg
- Obstetrics and Gynecology, University of Rochester Medical Center, Rochester, NY, United States
| | - Kathleen M. Hoeger
- Obstetrics and Gynecology, University of Rochester Medical Center, Rochester, NY, United States
| | - Zorimar Rivera- Núñez
- Biostatistics and Epidemiology, Rutgers School of Public Health, Piscataway, NJ, United States
- Environmental and Occupational Health Sciences Institute, Rutgers University, Piscataway, NJ, United States
| | - Amber Kautz
- Public Health Sciences, University of Rochester Medical Center, Rochester, NY, United States
| | - Adam T. Evans
- Obstetrics and Gynecology, University of Rochester Medical Center, Rochester, NY, United States
| | - Christina Wang
- Division of Endocrinology, Department of Medicine and Clinical and Translational Science Institue, The Lundquist Institute at Harbor-University of California, Los Angeles (UCLA) Medical Center, Torrance, CA, United States
| | - Richard K. Miller
- Obstetrics and Gynecology, University of Rochester Medical Center, Rochester, NY, United States
| | - Susan W. Groth
- School of Nursing, University of Rochester, Rochester, NY, United States
| | - Thomas G. O’Connor
- Obstetrics and Gynecology, University of Rochester Medical Center, Rochester, NY, United States
- Department of Psychiatry, University of Rochester, Rochester, NY, United States
- Department of Neuroscience, University of Rochester Medical Center, Rochester, NY, United States
- Wynne Center for Family Research, University of Rochester Medical Center, Rochester, NY, United States
| | - Emily S. Barrett
- Obstetrics and Gynecology, University of Rochester Medical Center, Rochester, NY, United States
- Biostatistics and Epidemiology, Rutgers School of Public Health, Piscataway, NJ, United States
- Environmental and Occupational Health Sciences Institute, Rutgers University, Piscataway, NJ, United States
- Public Health Sciences, University of Rochester Medical Center, Rochester, NY, United States
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11
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Sergeeva E, Ruksha T, Fefelova Y. Effects of Obesity and Calorie Restriction on Cancer Development. Int J Mol Sci 2023; 24:ijms24119601. [PMID: 37298551 DOI: 10.3390/ijms24119601] [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: 04/18/2023] [Revised: 05/25/2023] [Accepted: 05/30/2023] [Indexed: 06/12/2023] Open
Abstract
The risk of malignant tumor development is increasing in the world. Obesity is an established risk factor for various malignancies. There are many metabolic alterations associated with obesity which promote cancerogenesis. Excessive body weight leads to increased levels of estrogens, chronic inflammation and hypoxia, which can play an important role in the development of malignancies. It is proved that calorie restriction can improve the state of patients with various diseases. Decreased calorie uptake influences lipid, carbohydrate and protein metabolism, hormone levels and cell processes. Many investigations have been devoted to the effects of calorie restriction on cancer development in vitro and in vivo. It was revealed that fasting can regulate the activity of the signal cascades including AMP-activated protein kinase (AMPK), mitogen-activated protein kinase (MAPK), p53, mTOR, insulin/ insulin-like growth factor 1 (IGF1) and JAK-STAT. Up- or down-regulation of the pathways results in the decrease of cancer cell proliferation, migration and survival and the increase of apoptosis and effects of chemotherapy. The aim of this review is to discuss the connection between obesity and cancer development and the mechanisms of calorie restriction influence on cancerogenesis that stress the importance of further research of calorie restriction effects for the inclusion of this approach in clinical practice.
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Affiliation(s)
- Ekaterina Sergeeva
- Department of Pathological Physiology, Krasnoyarsk State Medical University, No. 1 P. Zheleznyaka Str., 660022 Krasnoyarsk, Russia
| | - Tatiana Ruksha
- Department of Pathological Physiology, Krasnoyarsk State Medical University, No. 1 P. Zheleznyaka Str., 660022 Krasnoyarsk, Russia
| | - Yulia Fefelova
- Department of Pathological Physiology, Krasnoyarsk State Medical University, No. 1 P. Zheleznyaka Str., 660022 Krasnoyarsk, Russia
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12
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Mićić B, Djordjevic A, Veličković N, Kovačević S, Martić T, Macut D, Vojnović Milutinović D. AMPK Activation as a Protective Mechanism to Restrain Oxidative Stress in the Insulin-Resistant State in Skeletal Muscle of Rat Model of PCOS Subjected to Postnatal Overfeeding. Biomedicines 2023; 11:1586. [PMID: 37371678 DOI: 10.3390/biomedicines11061586] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 05/21/2023] [Accepted: 05/27/2023] [Indexed: 06/29/2023] Open
Abstract
Polycystic ovary syndrome (PCOS) is a common endocrinopathy in women of reproductive age, often associated with obesity and insulin resistance. Childhood obesity is an important predisposing factor for the development of PCOS later in life. Being particularly interested in the interplay between prepubertal obesity and hyperandrogenemia, we investigated the effects of early postnatal overfeeding, accomplished by reducing litter size during the period of suckling, on energy sensing and insulin signaling pathways in the gastrocnemius muscle of a rat model of PCOS-induced by 5α-dihydrotestosterone (DHT). The combination of overfeeding and DHT treatment caused hyperinsulinemia and decreased systemic insulin sensitivity. Early postnatal overfeeding induced defects at critical nodes of the insulin signaling pathway in skeletal muscle, which was associated with reduced glucose uptake in the presence of hyperandrogenemia. In this setting, under a combination of overfeeding and DHT treatment, skeletal muscle switched to mitochondrial β-oxidation of fatty acids, resulting in oxidative stress and inflammation that stimulated AMP-activated protein kinase (AMPK) activity and its downstream targets involved in mitochondrial biogenesis and antioxidant protection. Overall, a combination of overfeeding and hyperandrogenemia resulted in a prooxidative and insulin-resistant state in skeletal muscle. This was accompanied by the activation of AMPK, which could represent a potential therapeutic target in insulin-resistant PCOS patients.
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Affiliation(s)
- Bojana Mićić
- Department of Biochemistry, Institute for Biological Research "Siniša Stanković"-National Institute of the Republic of Serbia, University of Belgrade, 142 Despot Stefan Blvd, 11060 Belgrade, Serbia
| | - Ana Djordjevic
- Department of Biochemistry, Institute for Biological Research "Siniša Stanković"-National Institute of the Republic of Serbia, University of Belgrade, 142 Despot Stefan Blvd, 11060 Belgrade, Serbia
| | - Nataša Veličković
- Department of Biochemistry, Institute for Biological Research "Siniša Stanković"-National Institute of the Republic of Serbia, University of Belgrade, 142 Despot Stefan Blvd, 11060 Belgrade, Serbia
| | - Sanja Kovačević
- Department of Biochemistry, Institute for Biological Research "Siniša Stanković"-National Institute of the Republic of Serbia, University of Belgrade, 142 Despot Stefan Blvd, 11060 Belgrade, Serbia
| | - Teodora Martić
- Department of Biochemistry, Institute for Biological Research "Siniša Stanković"-National Institute of the Republic of Serbia, University of Belgrade, 142 Despot Stefan Blvd, 11060 Belgrade, Serbia
| | - Djuro Macut
- Clinic for Endocrinology, Diabetes and Metabolic Diseases University Clinical Centre of Serbia, Faculty of Medicine, University of Belgrade, Doktora Subotića 13, 11000 Belgrade, Serbia
| | - Danijela Vojnović Milutinović
- Department of Biochemistry, Institute for Biological Research "Siniša Stanković"-National Institute of the Republic of Serbia, University of Belgrade, 142 Despot Stefan Blvd, 11060 Belgrade, Serbia
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13
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Kogure GS, Ribeiro VB, Mendes MC, Ferriani RA, Furtado CLM, Dos Reis RM. Dual-energy X-ray absorptiometry and adiposity index are sensitive methods to evaluate central fat accumulation in women with polycystic ovary syndrome and normal body mass index. ARCHIVES OF ENDOCRINOLOGY AND METABOLISM 2023; 67:e000627. [PMID: 37249458 PMCID: PMC10665059 DOI: 10.20945/2359-3997000000627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 01/21/2023] [Indexed: 05/31/2023]
Abstract
Objective This study aimed to determine the differences in body fat distribution and central obesity indicators using dual-energy X-ray absorptiometry (DXA), adiposity indices, and anthropometric indices between women with and without polycystic ovary syndrome (PCOS). Materials and methods Clinical and laboratory examination history, including transvaginal ultrasound, fasting blood samples, anthropometric measurements, and DXA scans were conducted in 179 women with PCOS (PCOS group) and 100 without PCOS (non-PCOS group). The volunteers were grouped by body mass index (BMI): normal (18-24.9 kg/m2), overweight (25-29.9 kg/m2), or obese (>30 kg/m2). The visceral adiposity index (VAI) and lipid accumulation product (LAP) were calculated, regions of interest (ROIs) were determined, and the fat mass index (FMI) was calculated using DXA. Results VAI, LAP, ROIs, FMI, and adiposity indices by DXA were higher in women with PCOS and normal BMI. In both PCOS and non-PCOS groups, the ROIs progressively increased from normal BMI to overweight and obese, and from overweight to obese. Obese women with PCOS showed high trunk fat mass. However, obesity was not able to modify these trunk/periphery fat ratios in PCOS from overweight to higher BMI. These variables were associated with the incidence of PCOS. Conclusion In women with PCOS and normal BMI, both DXA and the adiposity indices, VAI and LAP, are more sensitive methods to evaluate total body fat and fat accumulation in the central abdominal region. It was also observed that as BMI increased, the differences in measurements between women with and without PCOS decreased.
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Affiliation(s)
- Gislaine Satyko Kogure
- Setor de Reprodução Humana, Departamento de Ginecologia e Obstetrícia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil,
| | | | - Maria Célia Mendes
- Setor de Reprodução Humana, Departamento de Ginecologia e Obstetrícia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - Rui Alberto Ferriani
- Setor de Reprodução Humana, Departamento de Ginecologia e Obstetrícia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - Cristiana Libardi Miranda Furtado
- Centro de Pesquisa e Desenvolvimento de Medicamentos, Programa de Pós-graduação em Ciências Médicas e Cirúrgicas, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - Rosana Maria Dos Reis
- Setor de Reprodução Humana, Departamento de Ginecologia e Obstetrícia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
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Nowaczyk M, Cieślik K, Waszak M. Assessment of the Impact of Increased Physical Activity on Body Mass and Adipose Tissue Reduction in Overweight and Obese Children. CHILDREN (BASEL, SWITZERLAND) 2023; 10:children10050764. [PMID: 37238312 DOI: 10.3390/children10050764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 04/14/2023] [Accepted: 04/18/2023] [Indexed: 05/28/2023]
Abstract
(1) Background: Within the last 30 years, growing rates of child overweight and obesity have been observed as a very concerning phenomenon in most countries worldwide. The research aim was to assess what effect increased physical activity has on reducing body mass and adipose tissue in children between 10 and 11 years of age as well as to answer the question of whether physical activity could be considered as a factor in preventing child overweight and obesity when maintaining their existing diet and lifestyle. (2) Material and methods: There were 419 sports class primary school pupils in the experimental group who, in addition to four obligatory weekly physical education hours, attended six training hours. The control group comprised 485 children from parallel non-sports classes. In all pupils, height and weight measurements as well as physical fitness measurements were taken twice, at the beginning and end of the school year. Cole's method was used to assess the children's normal body weight. With the help of this method, children with excessive body weight were selected from the entire study group (N = 904), who additionally had skinfolds and adipose tissue measured using the BIA electrical bioimpedance method. The obtained results were interpreted using the variance analysis for repeated measurements and LSD test. (3) Results: The number of children with excessive body mass after 10 months of increased physical activity decreased (in the case of overweight: p = 0.0014, obesity: p = 0.0022), as did their skinfolds (p ≤ 0.001) and body fat (p ≤ 0.001), while their physical fitness considerably improved compared to the control group. (4) Conclusions: The introduction of increased physical activity in the experimental group children when maintaining their existing diet and lifestyle contributed to reducing their obesity and overweight and, at the same time, proved to be an effective factor in the process of decreasing their excessive body mass.
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Affiliation(s)
- Marta Nowaczyk
- Institute of Health and Physical Education, Jan Amos Komenski University of Applied Sciences in Leszno, 64-100 Leszno, Poland
| | - Krystyna Cieślik
- Institute of Health and Physical Education, Jan Amos Komenski University of Applied Sciences in Leszno, 64-100 Leszno, Poland
| | - Małgorzata Waszak
- Department of Biology and Anatomy, Poznan University of Physical Education, 61-871 Poznań, Poland
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15
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Larson EA, Dalamaga M, Magkos F. The role of exercise in obesity-related cancers: Current evidence and biological mechanisms. Semin Cancer Biol 2023; 91:16-26. [PMID: 36871634 DOI: 10.1016/j.semcancer.2023.02.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 02/17/2023] [Accepted: 02/28/2023] [Indexed: 03/07/2023]
Abstract
Cancer ranks among the five leading causes of death in almost all countries and has important repercussions for individual and public health, the healthcare system, and society in general. Obesity increases the incidence of many types of cancer, but growing evidence suggests that physical activity may decrease risk for developing a variety of obesity-related cancer types, and, in some cases, may improve cancer prognosis and mortality rates. This review summarizes recent evidence on the effect of physical activity on obesity-related cancer prevention and survival. For some cancers, including breast, colorectal, and endometrial cancer, there is strong evidence for a preventative effect of exercise, but for many others, including gallbladder and kidney cancer, and multiple myeloma, evidence is inconsistent or largely lacking. Though many potential mechanisms have been proposed to explain the onco-protective effect of exercise, including improved insulin sensitivity, alterations in sex hormone availability, improved immune function and inflammation, myokine secretion, and modulation of intracellular signaling at the level of AMP kinase, the exact mechanism(s) of action within each cancer subtype remains poorly defined. Overall, a deeper understanding of how exercise can help against cancer and of the exercise parameters that can be altered to optimize exercise prescription is necessary and should be the subject of future investigation.
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Affiliation(s)
- Elisabeth A Larson
- Division of Nutritional Sciences; Cornell University, Ithaca, NY, United States
| | - Maria Dalamaga
- Department of Biological Chemistry; National and Kapodistrian University of Athens Medical School, Athens, Greece
| | - Faidon Magkos
- Department of Nutrition, Exercise and Sports; University of Copenhagen, Denmark.
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16
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What Role do Androgens Play in Endometrial Cancer? J Pers Med 2023; 13:jpm13020341. [PMID: 36836575 PMCID: PMC9960114 DOI: 10.3390/jpm13020341] [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: 01/14/2023] [Revised: 02/12/2023] [Accepted: 02/13/2023] [Indexed: 02/18/2023] Open
Abstract
The role of estrogens and progesterone in the development and progression of endometrial cancer is well-established, but there are very little data about the role of androgens. There are five different androgens produced in women: dehydroepiandrosterone sulphate (DHEAS), dehydroepiandrosterone (DHEA), androstenedione (A4), testosterone (T) and dihydrotestosterone (DHT). The most potent hormones are T and DHT, the latter being mainly produced from T in peripheral tissues, including endometrium. Although they are considered to exert antiproliferative effects in many settings and the expression of their receptors is more often associated with a good prognosis in EC, it is still unknown in which specific settings androgens have carcinogenic or protective effects in EC.
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17
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Atigan A, Atigan A. Polycystic Ovary Syndrome and Exercise: Evaluation of YouTube Videos. Cureus 2023; 15:e35093. [PMID: 36945275 PMCID: PMC10024815 DOI: 10.7759/cureus.35093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/16/2023] [Indexed: 02/19/2023] Open
Abstract
OBJECTIVES Polycystic ovary syndrome (PCOS) is a common endocrine disorder in the reproductive female population. These young patients often and easily watch YouTube videos on the Internet to learn about their condition and find a natural solution. Our goal is to analyze the contents of PCOS exercise videos. METHODS In July 2022, research data were collected by typing the term "PCOS exercise" in the search tab on the incognito YouTube page. One hundred and ninety eight videos that met the inclusion criteria were analyzed in detail. The basic data of the videos available on YouTube was recorded. In addition, the DISCERN, global quality score (GQS), and video power index (VPI) scoring systems were calculated by two independent researchers. RESULTS The profiles of the video uploaders were: health employee 28 (14.1%), nutritionist 25 (12.6%), sports trainer 48 (24.2%), patient 21 (10.6%), undefined 76 (38.4%), and their countries were: India 91 (46%), Europe and England 36 (18.2%), USA and Canada 54 (27.3%), and other countries 17 (8.6%). The distribution of video content was yoga 58 (29.3%), aerobic exercise 38 (19.2%), strengthening exercise 44 (22.2%), and unified 58 (29.3%). The mean values were: video duration (15.27±11.27), total views (3,070,957±16,474,197), likes (48,116±283,308), dislikes (930±4102), VPI (97.82±7.28), GQS (3.89±1.05), DISCERN (33.62±10.42), subscriber counts (985,614±2,222,354), and comment counts (1741±10,689). Europe-England and America-Canada videos were of better quality for DISCERN and GQS scores than those from other countries. CONCLUSION Overcoming PCOS requires a lifestyle change, including exercise and diet. There is no consensus on which type of exercise is better yet. However, the necessity of regular exercise is known. We showed yoga and Indian hegemony in YouTube "PCOS exercise" videos.
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Affiliation(s)
- Ayhan Atigan
- Gynecology and Obstetrics, Karabük University, Medicine Faculty, Karabük, TUR
| | - Alev Atigan
- Physical Medicine and Rehabilitation, Karabük University, Karabük, TUR
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18
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Ding N, Zhan J, Shi Y, Qiao T, Li P, Zhang T. Obesity in children and adolescents and the risk of ovarian cancer: A systematic review and dose‒response meta-analysis. PLoS One 2022; 17:e0278050. [PMID: 36477251 PMCID: PMC9728843 DOI: 10.1371/journal.pone.0278050] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 11/08/2022] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVE The relationship between obesity in children and adolescents and the risk of ovarian cancer remains controversial. The aim of this meta-analysis was to explore the exact shape of this relationship. METHODS We conducted dose‒response meta-analyses of cohort and case‒control studies, including published studies derived from searches in the PubMed, Embase, Web of Science and Cochrane Library databases until October 2022. Pooled effect size estimates are expressed as relative risks (RRs) or odds ratios (ORs) with 95% confidence intervals (CIs) and were evaluated by fixed-effect models. A nonlinear dose‒response meta-analysis was performed by using a restricted cubic spline model. RESULTS After screening 4215 publications, 10 studies were included in the present meta-analysis. Overall analyses revealed statistically significant associations of obesity in children and adolescents with ovarian cancer (adjusted RR = 1.19, 95% CI: 1.11 to 1.28, P < 0.001). Moreover, the association was consistently significant in most subgroup analyses, for example, using geographic stratification, the results remained stable both in the Americas(RR = 1.11; 95% CI: 1.01 to 1.21; P = 0.022) and Europe (RR = 1.46; 95% CI: 1.21 to 1.77; P<0.001). For the dose‒response analyses, the risk of ovarian cancer increased with the degree of obesity, and the trend increased rapidly when body mass index (BMI) was over 25.95 kg/m2. CONCLUSION Our findings indicate that obesity in children and adolescents is a risk factor for ovarian cancer, and the risk increases with increasing BMI.
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Affiliation(s)
- Nan Ding
- Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Department of Gynecology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Junyi Zhan
- Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Department of Hepatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Youjin Shi
- Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Department of Gynecology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Tianci Qiao
- Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Department of Neurology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Panpan Li
- Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Department of Gynecology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Tingting Zhang
- Department of Gynecology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- * E-mail:
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Kazzi B, Ogunmoroti O, Rodriguez CP, Zhao D, Minhas AS, Osibogun O, Subramanya V, Allison MA, Ouyang P, Michos ED. Parity History and Later Life Sex Hormone Levels in the Multi-Ethnic Study of Atherosclerosis (MESA). Can J Cardiol 2022; 38:1893-1900. [PMID: 36087657 DOI: 10.1016/j.cjca.2022.09.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 08/14/2022] [Accepted: 09/01/2022] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Multiparity is a risk factor for cardiovascular disease (CVD). A more androgenic sex hormone profile, with a higher testosterone (T)/estradiol (E2) ratio, is associated with worse CVD outcomes in women and might be one mechanism linking multiparity to increased CVD risk. We investigated the relationship between parity and sex hormones at mid-to-older age. METHODS We performed a cross-sectional analysis of 2979 women with data on parity and endogenous sex hormone levels from the Multi-Ethnic Study of Atherosclerosis (MESA), a community-based cohort. Parity and gravidity (our exposures) were categorized as 0 (reference), 1-2, 3-4, or ≥ 5. Our outcome measures were T, E2, sex hormone binding globulin, dehydroepiandrosterone, and T/E2 ratio. Progressively adjusted linear regression was used to evaluate the association of parity/gravidity with sex hormones. RESULTS In multivariable adjusted models, there were no significant associations of parity with E2, dehydroepiandrosterone, and sex hormone binding globulin. Compared with nulliparity, after adjustment for CVD risk factors, women with 1-2 and 3-4 live births had higher T, but this was not significant for grand multiparity (≥ 5 live births). However, grand multigravidity (≥ 5 pregnancies) was associated with 10% (95% confidence interval [CI], 1%-20%) higher T and 14% (95% CI, 1%-29%) higher T/E2, compared with null gravidity. Grand multiparity was associated with an 18% (95% CI, 4%-34%) higher T/E2 ratio compared with nulliparity, after adjustment for CVD risk factors. CONCLUSIONS In this multiethnic cohort, women with grand multigravidity and grand multiparity had higher T/E2 levels, reflecting a more androgenic sex hormone profile. Longitudinal studies on sex hormones' influence on the relationship between multiparity and CVD are warranted.
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Affiliation(s)
- Brigitte Kazzi
- Ciccarone Center for the Prevention of Cardiovascular Disease, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Oluseye Ogunmoroti
- Ciccarone Center for the Prevention of Cardiovascular Disease, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Carla P Rodriguez
- Ciccarone Center for the Prevention of Cardiovascular Disease, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Di Zhao
- Ciccarone Center for the Prevention of Cardiovascular Disease, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Anum S Minhas
- Ciccarone Center for the Prevention of Cardiovascular Disease, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Olatokunbo Osibogun
- Department of Epidemiology, Robert Stempel College of Public Health and Social Work, Florida International University, Miami, Florida, USA
| | - Vinita Subramanya
- Department of Epidemiology, Emory University Rollins School of Public Health, Atlanta, Georgia, USA
| | - Matthew A Allison
- Department of Family Medicine, University of California San Diego, San Diego, California, USA
| | - Pamela Ouyang
- Ciccarone Center for the Prevention of Cardiovascular Disease, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Erin D Michos
- Ciccarone Center for the Prevention of Cardiovascular Disease, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.
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Movement Is Life-Optimizing Patient Access to Total Joint Arthroplasty: Anemia and Sickle Cell Disease Disparities. J Am Acad Orthop Surg 2022; 30:1059-1063. [PMID: 35313324 DOI: 10.5435/jaaos-d-21-00911] [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: 08/28/2021] [Accepted: 02/04/2022] [Indexed: 02/01/2023] Open
Abstract
Anemia and sickle cell anemia before surgery are often unrecognized medical comorbidities that can and should be addressed. Nearly 6% of the American population meets the criteria for anemia. The elderly, along with patients with renal disease, cancer, heart failure, or diabetes mellitus are more likely to be anemic. The most common form of anemia is due to iron deficiency, which can be easily treated before surgery. Sickle cell anemia occurs in 1 in 365 Black births and 1 in 16,300 Hispanic births, with 100,000 Americans currently living with sickle cell anemia. Patients who have anemia or sickle cell anemia are at increased risk for postoperative complications, including the need for blood transfusions and delayed healing. For those with sickle cell disease, surgeries can precipitate a sickle cell crisis. Patients with sickle cell anemia face barriers in accessing appropriate care; however, these patients can be optimized using preoperative red blood cell transfusions to dilute sickle cells and elevate the hemoglobin level. There should also be careful consideration and monitoring of the pain level of patients with sickle cell anemia in the perioperative period.
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21
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Movement Is Life-Optimizing Patient Access to Total Joint Arthroplasty: Diabetes Mellitus Disparities. J Am Acad Orthop Surg 2022; 30:1017-1022. [PMID: 34534181 DOI: 10.5435/jaaos-d-21-00425] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 08/23/2021] [Indexed: 02/01/2023] Open
Abstract
This is one of a series of articles that focuses on maximizing access to total joint arthroplasty by providing preoperative optimization pathways to all patients to promote the best results and minimize postoperative complications. Because of inequities in health care, an optimization process that is not equipped to support the underserved can potentially worsen disparities in the utilization of arthroplasty. A staggering 10.5% of the American population lives with diabetes mellitus. Diabetes prevalence is 17% higher in rural communities compared with urban communities. Rates of diabetes are higher in African American, Hispanic, and American Indian populations. Barriers to health care are higher in rural areas and for vulnerable communities, positioning the management of diabetes at the intersection of risk. Poor glycemic control is a predictor of periprosthetic joint infection. Optimization tools include assessing for food security, knowledge of a social safety net and community resources, patient diabetic literacy, and relationships with primary care providers to ensure continuous check-ins as well as partnering with specialty endocrine diabetic clinics. Several strategic recommendations, such as healthcare navigators and promotores (Latinx population), are made to enable and empower, such as continuous glucose monitoring, the preoperative patient to reach a safe preoperative optimization goal for their TJA surgery.
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22
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Movement Is Life-Optimizing Patient Access to Total Joint Arthroplasty: Obesity Disparities. J Am Acad Orthop Surg 2022; 30:1028-1035. [PMID: 35171875 DOI: 10.5435/jaaos-d-21-00424] [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: 04/04/2021] [Accepted: 12/24/2021] [Indexed: 02/01/2023] Open
Abstract
Thirty five percent of the American population is considered obese (body mass index [BMI] > 30). Obesity disproportionately affects African Americans, Hispanics, and women. Obesity is associated with postoperative complications, including wound complications, infections, and revision total joint arthroplasty (including total hip arthroplasty and total knee arthroplasty). Current BMI benchmarks (many institutions rely on a BMI of 40) selectively preclude patients from having surgery. Patients in these underserved populations can be optimized through the lens of shared decision making through the assessment of food security (eg, food deserts and food swamps), ability to afford healthy food, knowledge of social safety net and community resources to access healthy food, nutrition and weight loss referrals to programs that accept all forms of insurance, weight loss measurements as a percentage of body weight lost instead of BMI cutoffs, pharmacologic modalities, and bariatric surgery.
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Rankin KA, Gibson D, Schwarzkopf R, O’Connor MI, Wiznia DH. Operative Techniques to Reduce Hip and Knee Arthroplasty Complications in Morbidly Obese Patients. Arthroplast Today 2022; 17:120-125. [PMID: 36082285 PMCID: PMC9445224 DOI: 10.1016/j.artd.2022.07.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 06/05/2022] [Accepted: 07/26/2022] [Indexed: 11/21/2022] Open
Abstract
Obesity, defined as a body mass index (BMI) >30, is associated with an increased likelihood of osteoarthritis and need for total joint arthroplasty (TJA). Unfortunately, the morbidly obese population has a higher risk of postoperative complications. For some surgeons, patient selection criteria for TJA includes BMI<40. The associated risks are recognized by The American Association of Hip And Knee Surgeons, and many surgeons follow these guidelines. Importantly, as obese patients have been demonstrated to have equal or greater gains in functional outcomes and quality of life metrics, it is important for obese patients to have access to TJA. Through a comprehensive literature review and structured interviews with leading surgeons in the field, we provide guidance for orthopedic surgeons treating patients with BMI>40 to minimize risks, including tailored preoperative, intraoperative, and postoperative considerations.
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Affiliation(s)
- Kelsey A. Rankin
- Yale School of Medicine, New Haven, CT, USA
- Corresponding author. Yale School of Medicine, 333 Cedar Street, New Haven, CT 06510, USA. Tel.: +1 617 285 4102.
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Durá-Travé T, Gallinas-Victoriano F. Hyper-androgenemia and obesity in early-pubertal girls. J Endocrinol Invest 2022; 45:1577-1585. [PMID: 35412268 PMCID: PMC9270300 DOI: 10.1007/s40618-022-01797-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Accepted: 03/28/2022] [Indexed: 11/29/2022]
Abstract
PURPOSE The aim of this study was to examine the hormonal profile in early-pubertal girls with obesity. We hypothesized that these patients might already present hormonal alterations with POCS-like features. METHODS Cross-sectional study in a sample of 283 peri-pubertal girls (prepubertal and early-puberty subgroups), aged 6.1-12.0 years, diagnosed with obesity (BMI-SDS > 2.0, 97th percentile), so-called obesity group. They all underwent clinical examination and blood testing for hormonal measurements (leptin, TSH, FT4, IGF-1, IGFBP3, prolactin, insulin, FSH, LH, estradiol, ACTH, cortisol, 17-OH-P, DHE-S, androstenedione, testosterone and free testosterone). A control group was recruited: 243 healthy girls, aged 6.3-12.1 years, with normal BMI status. RESULTS Prepubertal girls with obesity had significantly higher values (p < 0.05) for BMI-SDS, leptin, insulin and HOMA-IR levels than control group. Early-pubertal girls with obesity also had significantly higher values (p < 0.05) for BMI-SDS, leptin, IGF-1, IGFBP3, insulin and HOMA-IR, LH, ratio LH/FSH, ACTH, DHE-S, androstenedione, testosterone and free testosterone levels than control group. In early-pubertal girls with obesity (not prepubertal girls), there was a positive correlation (p < 0.01) between leptin levels with LH, androstenedione and testosterone, and HOMA-IR with LH and testosterone levels. There was also a positive correlation (p < 0.01) between IGF-1 levels with LH, androstenedione, DHE-S and testosterone; and LH levels with testosterone. CONCLUSION The results obtained support our hypothesis that an abnormal hormonal profile with POCS-like features can already be detected (insulin resistance and hyperinsulinemia, increased secretion of LH and ACTH, and overproduction of ovarian and adrenal androgens) in early-pubertal girls with obesity.
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Affiliation(s)
- T. Durá-Travé
- Department of Pediatrics, School of Medicine, University of Navarra, Avenue Irunlarrea, 4, 31008 Pamplona, Spain
- Department of Pediatrics, Navarra Hospital Complex, Pamplona, Spain
- Navarrabiomed (Biomedical Research Center), Pamplona, Spain
| | - F. Gallinas-Victoriano
- Department of Pediatrics, Navarra Hospital Complex, Pamplona, Spain
- Navarrabiomed (Biomedical Research Center), Pamplona, Spain
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Yalameha B, Nejabati HR, Nouri M. Circulating microparticles as indicators of cardiometabolic risk in PCOS. Clin Chim Acta 2022; 533:63-70. [PMID: 35718107 DOI: 10.1016/j.cca.2022.06.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 06/14/2022] [Accepted: 06/15/2022] [Indexed: 11/17/2022]
Abstract
Polycystic ovary syndrome (PCOS), the most prevalent endocrine disturbance of the female reproductive system, is associated with several pathologic conditions, such as metabolic syndrome, obesity, diabetes, dyslipidemia, and insulin resistance, all of which are tightly connected to its progression. These factors are associated with a type of extracellular vesicle, ie, microparticles (MPs), released by shedding due to cell activation and apoptosis. Circulating MPs (cMPs) are secreted by a variety of cells, such as platelets, endothelial, leukocytes, and erythrocytes, and contain cytoplasmic substances derived from parent cells that account for their biologic activity. Current evidence has clearly shown that increased cMPs contribute to endothelial dysfunction, diabetes, hypertriglyceridemia, metabolic syndrome, cardiovascular abnormalities as well as PCOS. It has also been reported that platelet and endothelial MPs are specifically increased in PCOS thus endangering vascular health and subsequent cardiovascular disease. Given the importance of cMPs in the pathophysiology of PCOS, we review the role of cMPs in PCOS with a special focus on cardiometabolic significance.
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Affiliation(s)
- Banafsheh Yalameha
- Department of Biochemistry and Clinical Laboratories, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hamid Reza Nejabati
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Mohammad Nouri
- Department of Reproductive Biology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
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Адамян ЛВ, Андреева ЕН, Абсатарова ЮС, Григорян ОР, Дедов ИИ, Мельниченко ГА, Сутурина ЛВ, Филиппов ОС, Шереметьева ЕВ, Чернуха ГЕ, Ярмолинская МИ. [Clinical guidelines «Polycystic Ovary Syndrome»]. PROBLEMY ENDOKRINOLOGII 2022; 68:112-127. [PMID: 35488762 PMCID: PMC9764272 DOI: 10.14341/probl12874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 02/06/2022] [Indexed: 06/14/2023]
Abstract
Polycystic ovary syndrome (PCOS) is a polygenic endocrine disorder caused by both genetic and epigenetic factors. Depending on the period of a woman's life, the clinical picture, diagnosis, and treatment tactics of the disease are different. PCOS has a complex of reproductive, metabolic and psychological characteristics. The target audience of these clinical recommendations are obstetrician-gynecologists, endocrinologists, general practitioners, general practitioners. In these clinical guidelines, all information is ranked according to the level of persuasiveness of recommendations and the reliability of evidence, depending on the number and quality of studies on this issue.
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Affiliation(s)
- Л. В. Адамян
- Национальный исследовательский центр акушерства, гинекологии и перинатологии им. В.И. Кулакова;
Московский государственный медико-стоматологический университет им. А.И. Евдокимова
| | - Е. Н. Андреева
- Национальный медицинский исследовательский центр эндокринологии;
Московский государственный медико-стоматологический университет им. А.И. Евдокимова
| | | | - О. Р. Григорян
- Национальный медицинский исследовательский центр эндокринологии
| | - И. И. Дедов
- Национальный медицинский исследовательский центр эндокринологии
| | | | - Л. В. Сутурина
- Научный центр проблем здоровья семьи и репродукции человека
| | - О. С. Филиппов
- Первый Московский государственный медицинский университет им. И.М. Сеченова (Сеченовский Университет);
Министерство здравоохранения Российской Федерации
| | | | - Г. Е. Чернуха
- Национальный исследовательский центр акушерства, гинекологии и перинатологии им. В.И. Кулакова
| | - М. И. Ярмолинская
- Научно-исследовательский институт акушерства, гинекологии и репродукции им. Д.О. Отта;
Северо-Западный государственный медицинский университет им. И.И. Мечникова
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Sandler RS, Keku TO, Woosley JT, Sandler DP, Galanko JA, Peery AF. Obesity is associated with decreased risk of microscopic colitis in women. World J Gastroenterol 2022; 28:230-241. [PMID: 35110947 PMCID: PMC8776530 DOI: 10.3748/wjg.v28.i2.230] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Revised: 10/18/2021] [Accepted: 12/31/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Microscopic colitis is a leading cause of diarrhea in the older adults. There is limited information about risk factors. We hypothesized that obesity would be associated with microscopic colitis.
AIM To examine the association between obesity and microscopic colitis in men and women undergoing colonoscopy.
METHODS We conducted a case-control study at the University of North Carolina Hospitals. We identified and enrolled men and women referred for elective, outpatient colonoscopy for chronic diarrhea. We excluded patients with a past diagnosis of Crohn’s disease or ulcerative colitis. A research pathologist reviewed biopsies on every patient and classified them as microscopic colitis cases or non-microscopic colitis controls. Patients provided information on body weight, height and exposure to medications via structured interviews or Internet based forms. The analysis included 110 patients with microscopic colitis (cases) and 252 non-microscopic colitis controls. Multivariable analyses were performed using logistic regression to estimate odds ratios and 95% confidence intervals.
RESULTS Cases were older and more likely than controls to be white race. Study subjects were well educated, but cases were better educated than controls. Cases with microscopic colitis had lower body mass index than controls and reported more weight loss after the onset of diarrhea. Compared to patients who were normal or under-weight, obese (BMI > 30 kg/m2) patients were substantially less likely to have microscopic colitis after adjusting for age and education, adjusted OR (aOR) 0.35, 95% confidence interval (CI) 0.18-0.66). When stratified by sex, the association was limited to obese women, aOR 0.21, 95%CI: 0.10-0.45. Patients with microscopic colitis were more likely to report weight loss after the onset of diarrhea. After stratifying by weight loss, there remained a strong inverse association between obesity and microscopic colitis, aOR 0.33, 95%CI: 0.10 – 1.11 among the patients who did not lose weight. Ever use of birth control pills was associated with lower risk of microscopic colitis after adjusting for age, education and BMI, aOR 0.38, 95%CI: 0.17-0.84.
CONCLUSION Compared to controls also seen for diarrhea, microscopic colitis cases were less likely to be obese. Mechanisms are unknown but could involve hormonal effects of obesity or the gut microbiome.
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Affiliation(s)
- Robert S Sandler
- Department of Medicine, University of North Carolina, Chapel Hill, NC 27514-7555, United States
| | - Temitope O Keku
- Department of Medicine, University of North Carolina, Chapel Hill, NC 27514-7555, United States
| | - John T Woosley
- Department of Pathology, University of North Carolina, Chapel Hill, NC 27514, United States
| | - Dale P Sandler
- Department of Health and Human Services, National Institute of Environmental Health Sciences, Durham, NC 27709, United States
| | - Joseph A Galanko
- Department of Medicine, University of North Carolina, Chapel Hill, NC 27514-7555, United States
| | - Anne F Peery
- Department of Medicine, University of North Carolina, Chapel Hill, NC 27514-7555, United States
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Spremović Rađenović S, Pupovac M, Andjić M, Bila J, Srećković S, Gudović A, Dragaš B, Radunović N. Prevalence, Risk Factors, and Pathophysiology of Nonalcoholic Fatty Liver Disease (NAFLD) in Women with Polycystic Ovary Syndrome (PCOS). Biomedicines 2022; 10:131. [PMID: 35052811 PMCID: PMC8773533 DOI: 10.3390/biomedicines10010131] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 12/26/2021] [Accepted: 01/03/2022] [Indexed: 02/04/2023] Open
Abstract
Background: Polycystic Ovary Syndrome (PCOS) is one of the most common endocrine disorders in women's reproductive period of life. The presence of nonalcoholic fatty liver disease NAFLD, one of the leading causes of chronic liver disease in the Western world, is increased in women with PCOS. This review aims to present current knowledge in epidemiology, pathophysiology, diagnostics, and treatment of NAFLD in PCOS with an emphasis on the molecular basis of development of NAFLD in PCOS women. Methods: Authors investigated the available data on PCOS and NAFLD by a MEDLINE and Pub Med search during the years 1990-2021 using a combination of keywords such as "PCOS", "NAFLD", "steatohepatitis", "insulin resistance", "hyperandrogenaemia", "inflammation", "adipose tissue", and "obesity". Peer-reviewed articles regarding NAFLD and PCOS were included in this manuscript. Additional articles were identified from the references of relevant papers. Results: PCOS and NAFLD are multifactorial diseases, The development of NAFLD in PCOS women is linked to insulin resistance, hyperandrogenemia, obesity, adipose tissue dysfunction, and inflammation. There is the possible role of the gut microbiome, mitochondrial dysfunction, and endocannabinoid system in the maintenance of NAFLD in PCOS women. Conclusions: There is a need for further investigation about the mechanism of the development of NAFLD in PCOS women. New data about the molecular basis of development of NAFLD in PCOS integrated with epidemiological and clinical information could influence the evolution of new diagnostic and therapeutic approaches of NAFLD in PCOS.
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Affiliation(s)
- Svetlana Spremović Rađenović
- Clinic for Gynecology and Obstetrics, University Clinical Centre of Serbia, 11000 Belgrade, Serbia; (S.S.R.); (M.A.); (J.B.); (A.G.)
- Department of Gynecology and Obstetrics, Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
| | - Miljan Pupovac
- Clinic for Gynecology and Obstetrics, University Clinical Centre of Serbia, 11000 Belgrade, Serbia; (S.S.R.); (M.A.); (J.B.); (A.G.)
| | - Mladen Andjić
- Clinic for Gynecology and Obstetrics, University Clinical Centre of Serbia, 11000 Belgrade, Serbia; (S.S.R.); (M.A.); (J.B.); (A.G.)
| | - Jovan Bila
- Clinic for Gynecology and Obstetrics, University Clinical Centre of Serbia, 11000 Belgrade, Serbia; (S.S.R.); (M.A.); (J.B.); (A.G.)
- Department of Gynecology and Obstetrics, Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
| | - Svetlana Srećković
- Center for Anesthesiology and Resuscitation, University Clinical Centre of Serbia, 11000 Belgrade, Serbia;
| | - Aleksandra Gudović
- Clinic for Gynecology and Obstetrics, University Clinical Centre of Serbia, 11000 Belgrade, Serbia; (S.S.R.); (M.A.); (J.B.); (A.G.)
| | - Biljana Dragaš
- Intermedicus BIS, Specialized Hospital for Infertility, 11000 Belgrade, Serbia; (B.D.); (N.R.)
| | - Nebojša Radunović
- Intermedicus BIS, Specialized Hospital for Infertility, 11000 Belgrade, Serbia; (B.D.); (N.R.)
- Serbian Academy of Science and Art, 11000 Belgrade, Serbia
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Wagner IV, Savchuk I, Sahlin L, Kulle A, Klöting N, Dietrich A, Holterhus PM, Dötsch J, Blüher M, Söder O. De Novo and Depot-Specific Androgen Production in Human Adipose Tissue: A Source of Hyperandrogenism in Women with Obesity. Obes Facts 2022; 15:281-291. [PMID: 34983051 PMCID: PMC9021649 DOI: 10.1159/000521571] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 12/15/2021] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION Obesity in women is often associated with hyperandrogenism, but the role of adipose tissue (AT) in androgen synthesis remains unclear. Therefore, we studied whether AT could be a source of androgens promoting hyperandrogenism. METHODS Subcutaneous and visceral (visc) AT was collected from lean and obese women. Androgen levels were evaluated in serum, AT, and cell-culture supernatant. Gene and protein expression of steroidogenic enzymes were determined. RESULTS Obese subjects had elevated serum androgen levels, which reduced after weight loss. Androgens were measurable in AT and in cell-culture supernatants of adipocytes. Steroids were higher in AT from obese women, with the highest difference for testosterone in visc AT (+7.9-fold, p = 0.032). Steroidogenic enzymes were expressed in human AT with depot-specific differences. Obese women showed a significantly higher expression of genes of the backdoor pathway and of CYP19 in visc AT. CONCLUSION The whole steroidogenic machinery of the classical and backdoor pathways of steroidogenesis, and the capacity for androgen biosynthesis, were found in both AT depots and cultured adipocytes. Therefore, we hypothesize that AT is a de novo site of androgen production and the backdoor pathway of steroidogenesis might be a new pathomechanism for hyperandrogenism in women with obesity.
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Affiliation(s)
- Isabel Viola Wagner
- Pediatric Endocrinology Unit, Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
- Department of Pediatrics, Medical Faculty, University of Cologne, Cologne, Germany
- Department of Pediatrics, Medical Faculty, UKSH, University of Lübeck, Lübeck, Germany
| | - Iuliia Savchuk
- Pediatric Endocrinology Unit, Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
| | - Lena Sahlin
- Childhood Cancer Research Unit, Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
| | - Alexandra Kulle
- Hormone Center for Pediatric Endocrinology Lab, University Hospital Kiel, Kiel, Germany
| | - Nora Klöting
- Department of Medicine and Department of Surgery, Integrated Research and Treatment Center (IFB Adiposity Diseases), University of Leipzig, Leipzig, Germany
- Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI-MAG) of the Helmholtz Zentrum Muenchen at the University of Leipzig, Leipzig, Germany
| | - Arne Dietrich
- Department of Medicine and Department of Surgery, Integrated Research and Treatment Center (IFB Adiposity Diseases), University of Leipzig, Leipzig, Germany
| | - Paul-Martin Holterhus
- Hormone Center for Pediatric Endocrinology Lab, University Hospital Kiel, Kiel, Germany
| | - Jörg Dötsch
- Department of Pediatrics, Medical Faculty, University of Cologne, Cologne, Germany
| | - Matthias Blüher
- Department of Medicine and Department of Surgery, Integrated Research and Treatment Center (IFB Adiposity Diseases), University of Leipzig, Leipzig, Germany
| | - Olle Söder
- Pediatric Endocrinology Unit, Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
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Xiong X, Chen B, Wang Z, Ma L, Li S, Gao Y. Association between perfluoroalkyl substances concentration and bone mineral density in the US adolescents aged 12-19 years in NHANES 2005-2010. Front Endocrinol (Lausanne) 2022; 13:980608. [PMID: 36277702 PMCID: PMC9581310 DOI: 10.3389/fendo.2022.980608] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 09/21/2022] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Reports on the association of perfluoroalkyl substances (PFASs) exposure with adolescent bone health are scarce, and studies have primarily targeted maternal serum. OBJECTIVE We evaluated the relationship between autologous serum perfluorooctanoic acid (PFOA), perfluorooctane sulfonic acid (PFOS), perfluorohexane sulfonic acid (PFHxS) and perfluorononanoic acid (PFNA) levels and bone mineral density (BMD) in adolescents. METHODS We analyzed data from 1228 adolescents aged 12-19 years in the National Health and Nutrition Examination Survey (NHANES) 2005-2010 and used multiple regression analysis to identify the relationship between serum PFOA, PFOS, PFHxS, and PFNA concentrations and total femur, femoral neck, and lumbar spine BMD, in addition to multiple stratified subgroup analyses. RESULTS The mean age of participants was 15 years, males had higher serum PFAS concentrations than females. The results of multiple regression analysis showed that the natural log(ln)-transformed serum PFOA, PFOS, and PFNA concentrations were negatively correlated with total femur, femoral neck, and lumbar spine BMD (all p < 0.05), and ln-PFHxS was positively correlated with total femur and femoral neck BMD (all p< 0.05). In males, ln-PFOA was negatively associated with total femur and lumbar spine BMD (all p< 0.05), ln-PFOS was associated with the reduced total femur, femoral neck, and lumbar spine BMD (all p< 0.05), while ln-PFHxS and ln-PFNA were not observed to correlate with BMD at these three sites. In females, both ln-PFOA and ln-PFOS were negatively correlated with total femur and lumbar spine BMD (all p< 0.05), ln-PFHxS is associated with the increased total femur and femoral neck BMD (all p< 0.05), and ln-PFNA was negatively correlated with total femur and femoral neck BMD (all p< 0.05), most of the associations were confined to females. The associations of ln-PFOS with femoral neck BMD and ln-PFNA with total femur BMD were more significant in those who were overweight/obese and had anemia, respectively (all p for interaction < 0.05). CONCLUSIONS In this representative sample of US adolescents aged 12-19 years, certain PFAS were associated with lower bone mineral density, and most of the associations were confined to females. The negative effect of PFAS on BMD is more pronounced in those who are overweight/obese and have anemia. However, further studies are needed to confirm this finding.
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Affiliation(s)
- Xianmei Xiong
- The First Clinical School of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Baihang Chen
- The First Clinical School of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Zhongqing Wang
- The First Clinical School of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Liqiong Ma
- The First Clinical School of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Shijie Li
- The First Clinical School of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yijia Gao
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, China
- *Correspondence: Yijia Gao,
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Duan S, Yang D, Xia H, Ren Z, Chen J, Yao S. Cardiometabolic index: A new predictor for metabolic associated fatty liver disease in Chinese adults. Front Endocrinol (Lausanne) 2022; 13:1004855. [PMID: 36187093 PMCID: PMC9523727 DOI: 10.3389/fendo.2022.1004855] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 08/29/2022] [Indexed: 11/28/2022] Open
Abstract
OBJECTIVE Cardiometabolic index (CMI) is a well promising indicator for predicting obesity-related diseases, but its predictive value for metabolic associated fatty liver disease (MAFLD) is unclear. This study aimed to investigate the relationship between CMI and MAFLD and to evaluate the predictive value of CMI for MAFLD. METHODS A total of 943 subjects were enrolled in this cross-sectional study. CMI was calculated by multiplying the ratio of triglycerides and high-density lipoprotein cholesterol (TG/HDL-C) by waist-to-height ratio (WHtR). Multivariate logistic regression analysis was used to systematically evaluate the relationship between CMI and MAFLD. Receiver operating characteristic (ROC) curves were used to assess the predictive power of CMI for MAFLD and to determine the optimal cutoff value. The diagnostic performance of high CMI for MAFLD was validated in 131 subjects with magnetic resonance imaging diagnosis. RESULTS Subjects with higher CMI exhibited a significantly increased risk of MAFLD. The odds ratio for a 1-standard-deviation increase in CMI was 3.180 (2.102-4.809) after adjusting for various confounding factors. Further subgroup analysis showed that there were significant additive interactions between CMI and MAFLD risk in gender, age, and BMI (P for interaction < 0.05), and the area under the ROC curve(AUC) of CMI for predicting MAFLD were significantly higher in female, young, and nonobese subgroups than that in male, middle-aged and elderly, and obese subgroups (all P < 0.05). Moreover, among nonobese subjects, the AUC of CMI was significantly higher than that of waist circumference, BMI, TG/HDL-C, and TG (all P < 0.05). The best cutoff values of CMI to diagnose MAFLD in males and females were 0.6085 and 0.4319, respectively, and the accuracy, sensitivity, and specificity of high CMI for diagnosing MAFLD in the validation set were 85.5%, 87.5%, and 80%, respectively. CONCLUSIONS CMI was strongly and positively associated with the risk of MAFLD and can be a reference predictor for MAFLD. High CMI had excellent diagnostic performance for MALFD, which can enable important clinical value for early identification and screening of MAFLD.
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Affiliation(s)
- Shaojie Duan
- Graduate School, Beijing University of Chinese Medicine, Beijing, China
- Department of Gastroenterology, China-Japan Friendship Hospital, Beijing, China
| | - Deshuang Yang
- Graduate School, Beijing University of Chinese Medicine, Beijing, China
- Department of Integrative Cardiology, China-Japan Friendship Hospital, Beijing, China
| | - Hui Xia
- Graduate School, Beijing University of Chinese Medicine, Beijing, China
| | - Zhiying Ren
- Graduate School, Beijing University of Chinese Medicine, Beijing, China
| | - Jialiang Chen
- Center of Integrative Medicine, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Shukun Yao
- Department of Gastroenterology, China-Japan Friendship Hospital, Beijing, China
- *Correspondence: Shukun Yao,
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Liu H, Yang D, Li S, Xiao Y, Tu Y, Peng D, Bao Y, Han J, Yu H. A Reliable Estimate of Visceral Fat Area From Simple Anthropometric Measurements in Chinese Overweight and Obese Individuals. Front Endocrinol (Lausanne) 2022; 13:916124. [PMID: 35813621 PMCID: PMC9261284 DOI: 10.3389/fendo.2022.916124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 05/24/2022] [Indexed: 11/16/2022] Open
Abstract
OBJECTIVE Visceral obesity, reflected by the amount of visceral adipose tissue (VAT), is associated with multiple chronic diseases and metabolic disorders. The visceral fat area (VFA), measured by MRI, is the 'gold standard' for diagnosis of visceral obesity. In this study, a simple model to predict VFA was constructed to facilitate the identification and monitoring of patients who are at high risk of visceral obesity. METHODS The 721 overweight and obese participants were divided into two groups according to sex, then randomly assigned to derivation and validation cohorts in a 1:2 ratio. Data from the derivation group were used to construct a multiple linear regression model; data from the validation group were used to verify the validity of the model. RESULTS The following prediction equations, applicable to both sexes, were developed based on age, waist circumference (WC) and neck circumference (NC) that exhibited strong correlations with the VFA: VFA=3.7×age+2.4×WC+5.5×NC-443.6 (R2 = 0.511, adjusted R2 = 0.481, for men) and VFA=2.8×age+1.7×WC+6.5×NC-367.3 (R2 = 0.442, adjusted R2 = 0.433, for women). The data demonstrated good fit for both sexes. A comparison of the predicted and actual VFA in the verification group confirmed the accuracy of the equations: for men, R2 = 0.489, adjusted R2 = 0.484 and intra-class correlation coefficient (ICC) = 0.653 (p < 0.001) and for women: R2 = 0.538, adjusted R2= 0.536 and ICC = 0.672 (p < 0.001). The actual and predicted VFAs also showed good agreement in a Bland-Altman plot, indicating the significant correlations of both equations with the actual VFA. CONCLUSIONS Based on readily available anthropometric data, VFA prediction equations consisting of age, WC and NC were developed. The equations are robust, with good predictive power in both sexes; they provide ideal tools for the early detection of visceral obesity in Chinese overweight and obese individuals.
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Affiliation(s)
- Hanying Liu
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Department of Endocrinology and Metabolism, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Clinical Center for Diabetes, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Di Yang
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Department of Endocrinology and Metabolism, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Clinical Center for Diabetes, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Shaobo Li
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Department of Endocrinology and Metabolism, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Clinical Center for Diabetes, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Yunfeng Xiao
- Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Yinfang Tu
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Department of Endocrinology and Metabolism, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Clinical Center for Diabetes, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Danfeng Peng
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Department of Endocrinology and Metabolism, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Clinical Center for Diabetes, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Yuqian Bao
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Department of Endocrinology and Metabolism, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Clinical Center for Diabetes, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Junfeng Han
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Department of Endocrinology and Metabolism, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Clinical Center for Diabetes, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
- *Correspondence: Junfeng Han, ; Haoyong Yu,
| | - Haoyong Yu
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Department of Endocrinology and Metabolism, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Clinical Center for Diabetes, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
- *Correspondence: Junfeng Han, ; Haoyong Yu,
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Obesity and Bone Loss at Menopause: The Role of Sclerostin. Diagnostics (Basel) 2021; 11:diagnostics11101914. [PMID: 34679612 PMCID: PMC8534901 DOI: 10.3390/diagnostics11101914] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 10/06/2021] [Accepted: 10/11/2021] [Indexed: 11/20/2022] Open
Abstract
Background. Peripheral fat tissue is known to positively influence bone health. However, evidence exists that the risk of non-vertebral fractures can be increased in postmenopausal women with obesity as compared to healthy controls. The role of sclerostin, the SOST gene protein product, and body composition in this condition is unknown. Methods. We studied 28 severely obese premenopausal (age, 44.7 ± 3.9 years; BMI, 46.0 ± 4.2 kg/m2) and 28 BMI-matched post-menopausal women (age, 55.5 ± 3.8 years; BMI, 46.1 ± 4.8 kg/m2) thorough analysis of bone density (BMD) and body composition by dual X-ray absorptiometry (DXA), bone turnover markers, sclerostin serum concentration, glucose metabolism, and a panel of hormones relating to bone health. Results. Postmenopausal women harbored increased levels of the bone turnover markers CTX and NTX, while sclerostin levels were non-significantly higher as compared to premenopausal women. There were no differences in somatotroph, thyroid and adrenal hormone across menopause. Values of lumbar spine BMD were comparable between groups. By contrast, menopause was associated with lower BMD values at the hip (p < 0.001), femoral neck (p < 0.0001), and total skeleton (p < 0.005). In multivariate regression analysis, sclerostin was the strongest predictor of lumbar spine BMD (p < 0.01), while menopausal status significantly predicted BMD at total hip (p < 0.01), femoral neck (p < 0.001) and total body (p < 0.05). Finally, lean body mass emerged as the strongest predictor of total body BMD (p < 0.01). Conclusions. Our findings suggest a protective effect of obesity on lumbar spine and total body BMD at menopause possibly through mechanisms relating to lean body mass. Given the mild difference in sclerostin levels between pre- and postmenopausal women, its potential actions in obesity require further investigation.
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The Associations between Sex Hormones and Lipid Profiles in Serum of Women with Different Phenotypes of Polycystic Ovary Syndrome. J Clin Med 2021; 10:jcm10173941. [PMID: 34501389 PMCID: PMC8432258 DOI: 10.3390/jcm10173941] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 08/14/2021] [Accepted: 08/31/2021] [Indexed: 02/04/2023] Open
Abstract
We aimed to evaluate the relationship between selected serum sex hormones and lipid profiles in a group of women with polycystic ovary syndrome (PCOS) dividing according to four phenotypes, value of body mass index (BMI), and presence of hyperlipidemia. The study included 606 Caucasian women. Lipids and selected hormones were estimated using commercially available procedures during hospitalization in 2017. Phenotype of PCOS, BMI value, and hyperlipidemia were significant factors that influenced androgen hormone concentrations, such as total and free testosterone and androstenedione as well as the value of free androgen index (FAI). Moreover, significant changes in concentrations of dehydroepiandrosterone sulphate and sex hormone binding globulin (SHBG) were found between those groups. Higher quartiles of triglyceride concentrations increased the odds ratio of decreased concentrations of SHBG or increased values of FAI, while an adverse relation was found in case of HDL-C. The concentration of estradiol in the blood of women with PCOS was not associated with lipid profile parameters in any investigated groups. Probably, irregularities in sex hormone concentrations during PCOS is not directly associated with lipid profile parameters but could be reflective of the concentration of SHBG or the ratio of SHBG and total testosterone and their association with lipids.
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Pithois A, Mauppin C, Decaigny P, Tio G, Berdin A, Roux C, Pretalli JB. [Overweight or obesity: impact on the results of the first IVF/ICSI attempt]. GYNECOLOGIE, OBSTETRIQUE, FERTILITE & SENOLOGIE 2021; 49:593-600. [PMID: 33484901 DOI: 10.1016/j.gofs.2021.01.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Indexed: 06/12/2023]
Abstract
OBJECTIVES To evaluate the influence of overweight and obesity on the results of the first in vitro fertilization attempt, without or with intracytoplasmic microinjection (IVF/ICSI), in terms of live births. METHODS Retrospective observational study concerning the first IVF/ICSI attempts from 01/01/2006 to 31/12/2017 carried out at the Assisted Reproductive Technology of the CHU of Besançon, studying the delivery rate (excluding frozen embryos transfers), and the data of Assisted Reproductive Technology attempts, in overweight (BMI 25 to 29.9kg/m2) and obese women (BMI≥30kg/m2), compared to women with a standard BMI (18 to 24.9kg/m2). RESULTS A total of 3192 patients were included. At the end of their first IVF/ICSI attempt, the delivery rate of women with standard BMI was 34.7%. The delivery rate was significantly lower in overweight women (29.5%, p=0.011) and comparable in obese women (32.4%, p=0.476). The birth rate of women with a BMI≥25 kg/m2 was also significantly lower than that of women with a standard BMI (30.4% versus 34.7%, p=0.019). After multivariate analysis, the delivery rate in overweight patients remained significantly lower compared to the population with standard BMI (OR=0.707; 95% CI 0.561-0.890), and comparable in obese patients (OR=0.796; 95% CI 0.585-1.084). CONCLUSION The delivery rate was lower in overweight women, whereas it was not significantly different in obese women.
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Affiliation(s)
- A Pithois
- Centre d'AMP, CHU Besançon, 25000 Besançon, France.
| | - C Mauppin
- Centre d'AMP, CHU Besançon, 25000 Besançon, France
| | - P Decaigny
- Centre d'AMP, CHU Besançon, 25000 Besançon, France
| | - G Tio
- Inserm CIC 1431, CHU Besançon, 25000 Besançon, France
| | - A Berdin
- Centre d'AMP, CHU Besançon, 25000 Besançon, France
| | - C Roux
- Centre d'AMP, CHU Besançon, 25000 Besançon, France; Inserm CIC 1431, CHU Besançon, 25000 Besançon, France
| | - J-B Pretalli
- Centre d'AMP, CHU Besançon, 25000 Besançon, France; Inserm CIC 1431, CHU Besançon, 25000 Besançon, France
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El-Masry SA, Mahmoud RA, Ahmed HH, Al-Tohamy M, Abdel Latif HM, Afify MAS. Clinical significance of serum gonadotropin and androgen levels among Egyptian overweight/obese pubertal girls. JOURNAL OF COMPLEMENTARY & INTEGRATIVE MEDICINE 2021; 19:389-398. [PMID: 34109772 DOI: 10.1515/jcim-2020-0260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Accepted: 05/26/2021] [Indexed: 11/15/2022]
Abstract
OBJECTIVES Evaluate the association between overweight/obesity with serum gonadotropin and androgen levels in Egyptian pubertal girls. SUBJECTS AND METHODS A case-control study carried out in "Obesity Clinic" of "Diabetes, Endocrine and Metabolism Pediatric Unit (DEMPU)", Pediatric Hospital, Cairo University. It included 40 overweight and obese girls and 40 age-matching normal weight (control) ones, aged 12-18 years. Anthropometric assessment (weight, height and hip and waist circumferences) was done, and waist/hip and BMI were calculated. Laboratory investigations: lipid profile, serum gonadotropin (LH, FSH), androgen (free and total testosterone), estradiol, insulin, and FBG were quantified, while insulin resistance (IR) was calculated. RESULTS Hypogonadotropins (FSH and LH) and hyperandrogenaemia (total and free testosterone) were significantly prominent among obese girls. Correlation between gonadotropin, androgen and all of the studied variables, for the three studied groups (obese, overweight and control) revealed constant relations. Gonadotropin and androgens showed opposing correlations. Gonadotropin had significant negativ e correlations with the anthropometric parameters of obesity (BMI, Waist C, and W/H ratio), insulin, insulin resistance and lipid profile (triglycerides, total cholesterol and LDL), whereas androgens had significant positiv e ones. In addition, gonadotropin showed significant positiv e correlations with estradiol and HDL, while androgens showed significant negative ones. CONCLUSIONS Overweight/obesity had no effect on the correlations between gonadotropin and androgen on one side, with the anthropometric measurements and laboratory investigations on the other one. Alterations in androgen levels occur at earlier ages than gonadotropin, among both overweight and obese girls.
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Affiliation(s)
- Sahar A El-Masry
- Biological Anthropology Dept., National Research Centre, Giza, Egypt
| | - Rehab A Mahmoud
- Pediatrics Dept., Faculty of Postgraduate, Childhood Studies, Ain Shams University, Cairo, Egypt
| | - Hanaa H Ahmed
- Hormones Dept., National Research Centre, Giza, Egypt
| | | | | | - Mahmoud A S Afify
- Biological Anthropology Dept., National Research Centre, Giza, Egypt
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de Lima TR, González-Chica DA, Sui X, Santos Silva DA. The independent and joint associations among muscle strength, abdominal obesity and cardiometabolic variables among adults. Eur J Sport Sci 2021; 22:1122-1131. [PMID: 33691609 DOI: 10.1080/17461391.2021.1902571] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
The aim of the present study was to investigate the independent and joint associations among muscle strength (MS) and obesity with blood pressure, atherosclerosis, and laboratory markers. This was a cross-sectional study comprising a representative sample of 642 adults (men: 44.9%, 39.9 ± 11.2 years; women: 55.1%, 39.3 ± 11.1 years) from Florianópolis, Brazil. MS was assessed by handgrip strength. Obesity was defined as a Body Mass Index (BMI) ≥30.0 kg/m² and a waist circumference ≥80.0 cm in women and ≥90.0 cm in men. Clinical variables included systolic (SBP) and diastolic blood pressure (DBP), C-reactive protein (CRP), lipids, glucose metabolism markers and carotid intima-media thickness (IMT). Linear regression models stratified by sex and adjusted for confounders were used. Higher MS levels were related to lower CRP (up to 0.59 times lower), triglycerides (up to 0.33 times lower), HOMA-IR (up to 0.35 times lower), and higher HDL cholesterol (up to 5.2 mg/dL) levels among men. Among women, higher MS levels were related to lower SBP and DBP (up to -10.2 mmHg), CRP (up to 0.56 times lower), HOMA-IR (up to 0.27 times lower) and IMT (up to -4.8 × 10-2 mm). In addition, MS was inversely related to triglycerides and HOMA-IR among obese men, inversely related to CRP among obese men and women, and inversely associated to DBP only among obese women. This population-based study corroborates findings from clinical studies suggesting that even among individuals with obesity, higher MS might help adults to reduce cardiometabolic risk. HighlightsMuscle strength levels were directly associated with better prognosis in relation to cardiometabolic variables in individuals with or without abdominal obesity.Among men with abdominal obesity, to have higher values of muscle strength were associated with lower values of diastolic blood pressure, C-reactive protein, triglycerides, cholesterol and HOMA-IR.Higher muscle strength levels were inversely associated with C-reactive protein among women with abdominal obesity; Higher muscle strength might help adults to reduce cardiometabolic risk.
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Affiliation(s)
- Tiago Rodrigues de Lima
- Research Center in Kinanthropometry and Human Performance, Federal University of Santa Catarina, Florianopolis, Brazil
| | - David Alejandro González-Chica
- Discipline of General Practice, Adelaide Medical School, The University of Adelaide, Adelaide, Australia.,Adelaide Rural Clinical School, The University of Adelaide, Adelaide, Australia
| | - Xuemei Sui
- Department of Exercise Science, Arnold School of Public Health, University of South Carolina, Columbia, SC, USA
| | - Diego Augusto Santos Silva
- Research Center in Kinanthropometry and Human Performance, Federal University of Santa Catarina, Florianopolis, Brazil
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Banker M, Puttabyatappa M, O’Day P, Goodrich JM, Kelley AS, Domino SE, Smith YR, Dolinoy DC, Song PXK, Auchus RJ, Padmanabhan V. Association of Maternal-Neonatal Steroids With Early Pregnancy Endocrine Disrupting Chemicals and Pregnancy Outcomes. J Clin Endocrinol Metab 2021; 106:665-687. [PMID: 33280001 PMCID: PMC7947779 DOI: 10.1210/clinem/dgaa909] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Indexed: 12/12/2022]
Abstract
CONTEXT Steroids play an important role in fetal development and parturition. Gestational exposures to endocrine-disrupting chemicals (EDCs) affect steroidal milieu and pregnancy outcomes, raising the possibility of steroids serving as biomarkers. Most studies have not addressed the impact of EDC mixtures, which are reflective of real life scenarios. OBJECTIVE Assess the association of maternal and neonatal steroids with pregnancy outcomes and early pregnancy EDC levels. DESIGN Prospective analysis of mother-infant dyads. SETTING University hospital. PARTICIPANTS 121 mother-infant dyads. MAIN OUTCOME MEASURES The associations of maternal and neonatal steroidal hormones from 121 dyads with pregnancy outcomes, the associations of first trimester EDCs individually and as mixtures with maternal and neonatal steroids in a subset of 56 dyads and the influence of body mass index (BMI), age, and offspring sex in modulating the EDC associations with steroids were determined. RESULTS Steroid-specific positive or negative associations with pregnancy measures were evident; many maternal first trimester EDCs were negatively associated with estrogens and positively with androgen/estrogen ratios; EDC-steroid associations were influenced by maternal age, pre-pregnancy BMI, and fetal sex; and EDCs individually and as mixtures showed direct and inverse fetal sex-dependent associations with maternal and neonatal steroids. CONCLUSIONS This proof-of-concept study indicates association of steroids with pregnancy outcomes depending on maternal age, prepregnancy BMI, and fetal sex, with the effects of EDCs differing when considered individually or as mixtures. These findings suggest that steroidal hormonal measures have potential to serve as biomarkers of impact of EDC exposures and pregnancy outcome.
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Affiliation(s)
- Margaret Banker
- Department of Biostatistics, University of Michigan, Ann Arbor, MI, USA
| | | | - Patrick O’Day
- Departments of Pharmacology and Internal Medicine, Division of Metabolism, Endocrinology, & Diabetes, University of Michigan, Ann Arbor, MI, USA
| | - Jaclyn M Goodrich
- Department of Environmental Health Sciences, University of Michigan, Ann Arbor, MI, USA
| | - Angela S Kelley
- Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI, USA
| | - Steven E Domino
- Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI, USA
| | - Yolanda R Smith
- Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI, USA
| | - Dana C Dolinoy
- Department of Environmental Health Sciences, University of Michigan, Ann Arbor, MI, USA
- Department of Nutritional Sciences, University of Michigan, Ann Arbor, MI, USA
| | - Peter X K Song
- Department of Biostatistics, University of Michigan, Ann Arbor, MI, USA
| | - Richard J Auchus
- Departments of Pharmacology and Internal Medicine, Division of Metabolism, Endocrinology, & Diabetes, University of Michigan, Ann Arbor, MI, USA
| | - Vasantha Padmanabhan
- Department of Pediatrics, University of Michigan, Ann Arbor, MI, USA
- Department of Environmental Health Sciences, University of Michigan, Ann Arbor, MI, USA
- Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI, USA
- Department of Nutritional Sciences, University of Michigan, Ann Arbor, MI, USA
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Saliba K, Cuschieri S. Amidst the COVID-19 pandemic childhood obesity is still an epidemic-spotlight on obesity's multifactorial determinants. HEALTH SCIENCES REVIEW (OXFORD, ENGLAND) 2021; 1:100006. [PMID: 34977915 PMCID: PMC8639479 DOI: 10.1016/j.hsr.2021.100006] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Accepted: 11/30/2021] [Indexed: 02/08/2023]
Abstract
PURPOSE Childhood obesity is a global epidemic and a chronic disease. Multifactorial determinants have long been linked with childhood obesity. These have been challenged with the onset of COVID-19 and the associated mitigation measures. The study aimed to re-highlight these determinants while exploring the effects of the ongoing COVID-19 pandemic on these pre-existing childhood obesity determinants, while providing evidence that may be beneficial for the post-COVID-19 recovery plan. METHODS A PubMed literature search (2016-2021) using the keywords, "childhood obesity", "gender", "sex", "obesity in youth", "obesity in adolescents", "COVID-19″ and "SARS-CoV2" was performed. RESULTS Genetic predisposition, biologically low leptin levels, certain cultural beliefs and socio-economic statuses, as well as exposure to an "obesogenic" environment were found to have a positive association with childhood obesity. Additionally, the onset of COVID-19 further aggravates the childhood obesity epidemic, increasing childrens' susceptibility to obesity and all associated consequential diseases. DISCUSSION A possible key to the control and prevention of the burden of childhood obesity, lies in dealing with its precursors and risk factors. Certain factors, including socio-cultural norms, cultural beliefs and geographical factors are amenable. COVID-19 further challenged these and it is evident that the childhood obesity epidemic is still a critical one. Encouraging preventative interventions, such as screening programs, public awareness and policies targeting the environment, amongst others, are recommended.
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Affiliation(s)
- Katya Saliba
- Medical Student, Faculty of Medicine and Surgery University of Malta, Msida, Malta,Corresponding author
| | - Sarah Cuschieri
- Department of Anatomy, Faculty of Medicine & Surgery, University of Malta, Rm 425, Biomedical Building, Msida, Malta
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Ye W, Xie T, Song Y, Zhou L. The role of androgen and its related signals in PCOS. J Cell Mol Med 2020; 25:1825-1837. [PMID: 33369146 PMCID: PMC7882969 DOI: 10.1111/jcmm.16205] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 11/29/2020] [Accepted: 12/07/2020] [Indexed: 02/06/2023] Open
Abstract
Polycystic ovary syndrome (PCOS) is the most common endocrine disorder in women at reproductive age. However, the underlying pathogenic mechanisms have not been completely understood. Hyperandrogenism is an important clinic feature in patients with PCOS, suggesting its pathologic role in the development and progression of PCOS. However, the actual role of androgen and the related signals in PCOS and PCOS-related complications have not yet been clarified. In this review, we surveyed the origin and effects of androgen on PCOS and the related complications, highlighted the cellular signals affecting androgen synthesis and summarized the pathological processes caused by hyperandrogenism. Our review well reveals the important mechanisms referring the pathogenesis of PCOS and provides important clues to the clinic strategies in patients with PCOS.
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Affiliation(s)
- Wenting Ye
- Division of Nephrology, State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Tingting Xie
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yali Song
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Lili Zhou
- Division of Nephrology, State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangzhou, China
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41
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Friedenreich CM, Ryder-Burbidge C, McNeil J. Physical activity, obesity and sedentary behavior in cancer etiology: epidemiologic evidence and biologic mechanisms. Mol Oncol 2020; 15:790-800. [PMID: 32741068 PMCID: PMC7931121 DOI: 10.1002/1878-0261.12772] [Citation(s) in RCA: 211] [Impact Index Per Article: 52.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 07/08/2020] [Accepted: 07/27/2020] [Indexed: 12/13/2022] Open
Abstract
An estimated 30–40% of cancers can be prevented through changes in modifiable lifestyle and environmental risk factors known to be associated with cancer incidence. Despite this knowledge, there remains limited awareness that these associations exist. The purpose of this review article was to summarize the epidemiologic evidence concerning the contribution of physical activity, sedentary behavior, and obesity to cancer etiology and to provide an overview of the biologic mechanisms that may be operative between these factors and cancer incidence. Strong and consistent evidence exists that higher levels of physical activity reduce the risk of six different cancer sites (bladder, breast, colon, endometrial, esophageal adenocarcinoma, gastric cardia), whereas moderate evidence inversely associates physical activity with lung, ovarian, pancreatic and renal cancer, and limited evidence inversely correlates physical activity with prostate cancer. Sedentary behavior, independent of physical activity, has been shown to increase the risk of colon, endometrial, and lung cancers. Obesity is an established risk factor for 13 different cancer sites (endometrial, postmenopausal breast, colorectal, esophageal, renal/kidneys, meningioma, pancreatic, gastric cardia, liver, multiple myeloma, ovarian, gallbladder, and thyroid). The main biologic mechanisms whereby physical activity, sedentary behavior, and obesity are related to cancer incidence include an effect on endogenous sex steroids and metabolic hormones, insulin sensitivity, and chronic inflammation. Several emerging pathways related to oxidative stress, DNA methylation, telomere length, immune function, and gut microbiome are presented. Key recommendations for future research in both the epidemiology and biology of the associations between physical activity, sedentary behavior, obesity, and cancer risk are also provided.
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Affiliation(s)
- Christine M Friedenreich
- Department of Cancer Epidemiology and Prevention Research, CancerControl Alberta, Alberta Health Services, Calgary, AB, Canada.,Department of Oncology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Charlotte Ryder-Burbidge
- Department of Cancer Epidemiology and Prevention Research, CancerControl Alberta, Alberta Health Services, Calgary, AB, Canada
| | - Jessica McNeil
- Department of Cancer Epidemiology and Prevention Research, CancerControl Alberta, Alberta Health Services, Calgary, AB, Canada
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Abi-Ghanem C, Robison LS, Zuloaga KL. Androgens' effects on cerebrovascular function in health and disease. Biol Sex Differ 2020; 11:35. [PMID: 32605602 PMCID: PMC7328272 DOI: 10.1186/s13293-020-00309-4] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 05/20/2020] [Indexed: 12/18/2022] Open
Abstract
Androgens affect the cerebral vasculature and may contribute to sex differences in cerebrovascular diseases. Men are at a greater risk for stroke and vascular contributions to cognitive impairment and dementia (VCID) compared to women throughout much of the lifespan. The cerebral vasculature is a target for direct androgen actions, as it expresses several sex steroid receptors and metabolizing enzymes. Androgens’ actions on the cerebral vasculature are complex, as they have been shown to have both protective and detrimental effects, depending on factors such as age, dose, and disease state. When administered chronically, androgens are shown to be pro-angiogenic, promote vasoconstriction, and influence blood-brain barrier permeability. In addition to these direct effects of androgens on the cerebral vasculature, androgens also influence other vascular risk factors that may contribute to sex differences in cerebrovascular diseases. In men, low androgen levels have been linked to metabolic and cardiovascular diseases including hypertension, diabetes, hyperlipidemia, and obesity, which greatly increase the risk of stroke and VCID. Thus, a better understanding of androgens’ interactions with the cerebral vasculature under physiological and pathological conditions is of key importance.
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Affiliation(s)
- Charly Abi-Ghanem
- Department of Neuroscience & Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue, MC-136, Albany, NY, 12208, USA
| | - Lisa S Robison
- Department of Neuroscience & Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue, MC-136, Albany, NY, 12208, USA
| | - Kristen L Zuloaga
- Department of Neuroscience & Experimental Therapeutics, Albany Medical College, 47 New Scotland Avenue, MC-136, Albany, NY, 12208, USA.
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Puttabyatappa M, Sargis RM, Padmanabhan V. Developmental programming of insulin resistance: are androgens the culprits? J Endocrinol 2020; 245:R23-R48. [PMID: 32240982 PMCID: PMC7219571 DOI: 10.1530/joe-20-0044] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 04/02/2020] [Indexed: 02/06/2023]
Abstract
Insulin resistance is a common feature of many metabolic disorders. The dramatic rise in the incidence of insulin resistance over the past decade has enhanced focus on its developmental origins. Since various developmental insults ranging from maternal disease, stress, over/undernutrition, and exposure to environmental chemicals can all program the development of insulin resistance, common mechanisms may be involved. This review discusses the possibility that increases in maternal androgens associated with these various insults are key mediators in programming insulin resistance. Additionally, the intermediaries through which androgens misprogram tissue insulin sensitivity, such as changes in inflammatory, oxidative, and lipotoxic states, epigenetic, gut microbiome and insulin, as well as data gaps to be filled are also discussed.
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Affiliation(s)
| | - Robert M. Sargis
- Department of Medicine, University of Illinois at Chicago, Chicago, IL
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Jensterle M, Kravos NA, Ferjan S, Goricar K, Dolzan V, Janez A. Long-term efficacy of metformin in overweight-obese PCOS: longitudinal follow-up of retrospective cohort. Endocr Connect 2020; 9:44-54. [PMID: 31829964 PMCID: PMC6993269 DOI: 10.1530/ec-19-0449] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Accepted: 12/11/2019] [Indexed: 12/23/2022]
Abstract
OBJECTIVE Long-term efficacy of metformin in polycystic ovarian syndrome (PCOS) apart from in those with impaired glucose tolerance or diabetes remains unproven. We aimed to evaluate the impact of metformin in overweight-obese patients with PCOS and normal baseline glycemic homeostasis. METHODS A 10-year longitudinal follow-up of a retrospective cohort comprising 159 patients with PCOS defined by Rotterdam criteria, BMI ≥25 kg/m2 and normal initial glucose homeostasis (age 28.4 ± 6.4 years, BMI 34.9 ± 6.6 kg/m2) that had been receiving metformin 1000 mg BID. Collection data contained 6085 time-points including anthropometric, hormonal and metabolic parameters. RESULTS After the first year body mass (BM) decreased for 3.9 ± 6.8 kg (P < 0.001) and remained stable during the following 3 years. Menstrual frequency (MF) increased to 3.0 ± 3.9 bleeds/year (P < 0.001) after first year to over 11 bleeds/year in the following years. The total testosterone and androstenedione decreased to 15.4 ± 47.9% and 11.3 ± 46.4% within first year, with further decrease in total testosterone and androstenedione to 37.8 ± 61.8 and 24.8 ± 40.5% at the fifth year of the follow-up. The total conversion rate to prediabetes and diabetes was extremely low throughout observation period. Less than 25% of patients continued with metformin for more than 5 years with further dropout to only 6% on metformin therapy at the tenth year of follow-up. CONCLUSIONS Long-term metformin treatment of overweight-obese women with PCOS and normal baseline glycemic homeostasis resulted in reduction and stabilization of BM, improvements of MF and androgen profile and low conversion rate to diabetes.
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Affiliation(s)
- Mojca Jensterle
- Department of Endocrinology, Diabetes and Metabolic Diseases, University Medical Centre, Ljubljana, Slovenia
- University of Ljubljana, Faculty of Medicine, Ljubljana, Slovenia
| | - Nika Aleksandra Kravos
- Department of Endocrinology, Diabetes and Metabolic Diseases, University Medical Centre, Ljubljana, Slovenia
- University of Ljubljana, Faculty of Medicine, Ljubljana, Slovenia
| | - Simona Ferjan
- Department of Endocrinology, Diabetes and Metabolic Diseases, University Medical Centre, Ljubljana, Slovenia
- University of Ljubljana, Faculty of Medicine, Ljubljana, Slovenia
| | - Katja Goricar
- University of Ljubljana, Faculty of Medicine, Institute of Biochemistry, Pharmacogenetics Laboratory, Ljubljana, Slovenia
| | - Vita Dolzan
- University of Ljubljana, Faculty of Medicine, Institute of Biochemistry, Pharmacogenetics Laboratory, Ljubljana, Slovenia
| | - Andrej Janez
- Department of Endocrinology, Diabetes and Metabolic Diseases, University Medical Centre, Ljubljana, Slovenia
- University of Ljubljana, Faculty of Medicine, Ljubljana, Slovenia
- Correspondence should be addressed to A Janez:
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