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Nichols AR, Chavarro JE, Oken E. Reproductive risk factors across the female lifecourse and later metabolic health. Cell Metab 2024; 36:240-262. [PMID: 38280383 PMCID: PMC10871592 DOI: 10.1016/j.cmet.2024.01.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 12/08/2023] [Accepted: 01/05/2024] [Indexed: 01/29/2024]
Abstract
Metabolic health is characterized by optimal blood glucose, lipids, cholesterol, blood pressure, and adiposity. Alterations in these characteristics may lead to the development of type 2 diabetes mellitus or dyslipidemia. Recent evidence suggests that female reproductive characteristics may be overlooked as risk factors that contribute to later metabolic dysfunction. These reproductive traits include the age at menarche, menstrual irregularity, the development of polycystic ovary syndrome, gestational weight change, gestational dysglycemia and dyslipidemia, and the severity and timing of menopausal symptoms. These risk factors may themselves be markers of future dysfunction or may be explained by shared underlying etiologies that promote long-term disease development. Disentangling underlying relationships and identifying potentially modifiable characteristics have an important bearing on therapeutic lifestyle modifications that could ease long-term metabolic burden. Further research that better characterizes associations between reproductive characteristics and metabolic health, clarifies underlying etiologies, and identifies indicators for clinical application is warranted in the prevention and management of metabolic dysfunction.
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Affiliation(s)
- Amy R Nichols
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Division of Chronic Disease Research Across the Lifecourse, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, USA.
| | - Jorge E Chavarro
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Emily Oken
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Division of Chronic Disease Research Across the Lifecourse, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, USA
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Santi D, Lotti F, Sparano C, Rastrelli G, Isidori AM, Pivonello R, Barbonetti A, Salonia A, Minhas S, Krausz C, Vignozzi L, Maggi M, Corona G. Does an increase in adipose tissue 'weight' affect male fertility? A systematic review and meta-analysis based on semen analysis performed using the WHO 2010 criteria. Andrology 2024; 12:123-136. [PMID: 37226894 DOI: 10.1111/andr.13460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 05/10/2023] [Accepted: 05/16/2023] [Indexed: 05/26/2023]
Abstract
INTRODUCTION Obesity negatively impact on the metabolism of sex hormones, leading to reduced testosterone serum levels. However, how the obesity could negatively impact on the overall gonadal function, particularly on male fertility, remained unclear so far. OBJECTIVE To systematically review evidences regarding the influence of body weight excess on the sperm production. METHODS A meta-analysis was conducted, searching all prospective and retrospective observational studies reporting male subjects older than 18 years old, with body weight excess from overweight to severe obesity were considered. Only studies using the V edition of the World Health Organization (WHO) manual for semen analysis interpretation were considered. No specific interventions were considered. Search was focused on studies comparing overweight/obese to normal weight subjects. RESULTS Twenty-eight studies were considered. Total sperm count and sperm progressive motility were significantly lower in overweight compared to normal weight subjects. Meta-regression analyses demonstrated that patients' age impacted on sperm parameters. Similarly, obese men showed lower sperm concentration, total sperm number, progressive and total motilities, and normal morphology lower than normal weight subjects. Reduced sperm concentration in obese men was influenced by age, smoking habit, varicocele, and total testosterone serum levels at meta-regression analyses. CONCLUSIONS The male potential fertility is reduced in subjects with increased body weight, compared to normal weight men. The higher was the increased body weight, the worst was the sperm quantity/quality. This result comprehensively included obesity among non-communicable risk factor for male infertility, shedding new lights on the negative impact of increased body weight on overall gonadal function.
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Affiliation(s)
- Daniele Santi
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Unit of Endocrinology, Department of Medical Specialties, AziendaOspedaliero-Universitaria of Modena, Modena, Italy
| | - Francesco Lotti
- Andrology, Women's Endocrinology and Gender Incongruence Unit, Center for Prevention, Diagnosis and Treatment of Infertility, Careggi Hospital, Mario Serio Department of Experimental and Clinical Biomedical Sciences, University of Florence, Florence, Italy
| | - Clotilde Sparano
- Endocrinology Unit, Mario Serio Department of Experimental and Clinical Biomedical Sciences, University of Florence, Florence, Italy
| | - Giulia Rastrelli
- Andrology, Women's Endocrinology and Gender Incongruence Unit, Center for Prevention, Diagnosis and Treatment of Infertility, Careggi Hospital, Mario Serio Department of Experimental and Clinical Biomedical Sciences, University of Florence, Florence, Italy
| | - Andrea M Isidori
- Department of Experimental Medicine, "Sapienza" University of Rome, Centre for Rare Diseases (Endo-ERN accredited), Policlinico Umberto I Hospital, Rome, Italy
| | - Rosario Pivonello
- Dipartimento di Medicina Clinica e Chirurgia, Sezione di Endocrinologia, Diabetologia, Andrologia e Nutrizione, Unità di Andrologia e Medicina della Riproduzione e della Sessualità Maschile e Femminile, Università Federico II di Napoli, Naples, Italy
- UNESCO, Chair for Health Education and Sustainable Development, Federico II University, Naples, Italy
| | - Arcangelo Barbonetti
- Andrology Unit, Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy
| | - Andrea Salonia
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy
- University Vita-Salute San Raffaele, Milan, Italy
| | - Suks Minhas
- Department of Urology, Imperial College NHS Healthcare, London, UK
| | - Csilla Krausz
- Andrology, Women's Endocrinology and Gender Incongruence Unit, Center for Prevention, Diagnosis and Treatment of Infertility, Careggi Hospital, Mario Serio Department of Experimental and Clinical Biomedical Sciences, University of Florence, Florence, Italy
| | - Linda Vignozzi
- Andrology, Women's Endocrinology and Gender Incongruence Unit, Center for Prevention, Diagnosis and Treatment of Infertility, Careggi Hospital, Mario Serio Department of Experimental and Clinical Biomedical Sciences, University of Florence, Florence, Italy
| | - Mario Maggi
- Endocrinology Unit, Mario Serio Department of Experimental and Clinical Biomedical Sciences, University of Florence, Florence, Italy
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Wan B, Ma N, Zhou Z, Lv C. Putative causal inference for the relationship between obesity and sex hormones in males: a bidirectional Mendelian randomization study. PeerJ 2023; 11:e15760. [PMID: 37483981 PMCID: PMC10362853 DOI: 10.7717/peerj.15760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 06/27/2023] [Indexed: 07/25/2023] Open
Abstract
Background Obesity is a chronic disease with a high prevalence rate and is an established risk factor for human health. Body mass index (BMI) is a common and primary indicator used in assessing obesity. This work aims to investigate the putative causal relationship among BMI, sex hormone-binding globulin (SHBG), bioavailable testosterone (BioT), and estradiol levels. Materials and Methods We conducted a bidirectional Mendelian randomization study, using single-nucleotide polymorphisms (SNPs) strongly associated with BMI, SHBG, BioT, and estradiol as instrumental variables. All SNPs were identified from the genome-wide association study (GWAS) summary data of large sample studies recruiting more than 150,000 European adult male individuals. The inverse-variance-weighted (IVW) approach was used as a primary algorithm for putative causal estimation. Results Genetically predicted elevated BMI was associated with decreased SHBG (IVW, β = -0.103, 95% confidence interval [CI] [-0.113 to -0.092], P = 1.50 × 10-77) and BioT levels (IVW, β = -0.139, 95% CI [-0.165 to -0.113], P = 9.54 × 10-26) and high estradiol levels (IVW, β = 0.014, 95% CI [0.009-0.019], P = 2.19 × 10-7). Increased SHBG levels were causally associated with low BMI (IVW, β = -0.051, 95% CI [-0.098 to -0.005], P = 0.030) and BioT (IVW, β = -0.126, 95% CI [-0.175 to -0.077], P = 5.97 × 10-7) and high estradiol levels (IVW, β = 0.046, 95% CI [0.035-0.056], P = 6.51 × 10-17). Conversely, no evidence of an effect of estradiol imbalance on SHBG levels (IVW, β = 1.035, 95% CI [-0.854 to 2.926], P = 0.283) and BMI (IVW, β = 0.091, 95% CI [-0.094 to 0.276], P = 0.336) was obtained. However, increased BioT levels were causally associated with lower SHBG levels (IVW, β = -0.044, 95% CI [-0.061 to -0.026], P = 8.76 × 10-7), not BMI (IVW, β = -0.006, 95% CI [-0.035 to 0.023], P = 0.679). Conclusions The findings support a network putative causal relationship among BMI, SHBG, BioT, and estradiol. SHBG, BioT, and estradiol may partly mediate the effect of obesity on male health. Reasonably modulating BioT and estradiol, especially SHBG, facilitated the attenuation of the harmful effects of obesity on male health.
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Affiliation(s)
- Bangbei Wan
- Department of Urology, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, Haikou, Hainan, China
- Reproductive Medical Center, Hainan Women and Children’s Medical Center, Haikou, Hainan, China
| | - Ning Ma
- Reproductive Medical Center, Hainan Women and Children’s Medical Center, Haikou, Hainan, China
| | - Zhi Zhou
- Reproductive Medical Center, Hainan Women and Children’s Medical Center, Haikou, Hainan, China
| | - Cai Lv
- Department of Urology, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, Haikou, Hainan, China
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Vahid F, Hajizadeghan K, Khodabakhshi A. Nutritional Metabolomics in Diet-Breast Cancer Relations: Current Research, Challenges, and Future Directions-A Review. Biomedicines 2023; 11:1845. [PMID: 37509485 PMCID: PMC10377267 DOI: 10.3390/biomedicines11071845] [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: 05/24/2023] [Revised: 06/21/2023] [Accepted: 06/24/2023] [Indexed: 07/30/2023] Open
Abstract
Breast cancer is one of the most common types of cancer in women worldwide, and its incidence is increasing. Diet has been identified as a modifiable risk factor for breast cancer, but the complex interplay between diet, metabolism, and cancer development is not fully understood. Nutritional metabolomics is a rapidly evolving field that can provide insights into the metabolic changes associated with dietary factors and their impact on breast cancer risk. The review's objective is to provide a comprehensive overview of the current research on the application of nutritional metabolomics in understanding the relationship between diet and breast cancer. The search strategy involved querying several electronic databases, including PubMed, Scopus, Web of Science, and Google Scholar. The search terms included combinations of relevant keywords such as "nutritional metabolomics", "diet", "breast cancer", "metabolites", and "biomarkers". In this review, both in vivo and in vitro studies were included, and we summarize the current state of knowledge on the role of nutritional metabolomics in understanding the diet-breast cancer relationship, including identifying specific metabolites and metabolic pathways associated with breast cancer risk. We also discuss the challenges associated with nutritional metabolomics research, including standardization of analytical methods, interpretation of complex data, and integration of multiple-omics approaches. Finally, we highlight future directions for nutritional metabolomics research in studying diet-breast cancer relations, including investigating the role of gut microbiota and integrating multiple-omics approaches. The application of nutritional metabolomics in the study of diet-breast cancer relations, including 2-amino-4-cyano butanoic acid, piperine, caprate, rosten-3β,17β-diol-monosulfate, and γ-carboxyethyl hydrochroman, among others, holds great promise for advancing our understanding of the role of diet in breast cancer development and identifying personalized dietary recommendations for breast cancer prevention, control, and treatment.
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Affiliation(s)
- Farhad Vahid
- Nutrition and Health Research Group, Precision Health Department, Luxembourg Institute of Health, 1445 Strassen, Luxembourg
| | - Kimia Hajizadeghan
- Department of Nutrition, Faculty of Public Health, Kerman University of Medical Sciences, Kerman 7616913555, Iran
| | - Adeleh Khodabakhshi
- Department of Nutrition, Faculty of Public Health, Kerman University of Medical Sciences, Kerman 7616913555, Iran
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Liu S, Lu Z, Fu Z, Li H, Gui C, Deng Y. Clinicopathological Characteristics and Outcomes of Immunoglobulin A Nephropathy with Different Types of Dyslipidemia: A Retrospective Single-Center Study. Kidney Blood Press Res 2023; 48:186-193. [PMID: 37062274 PMCID: PMC10108400 DOI: 10.1159/000529822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 02/08/2023] [Indexed: 04/18/2023] Open
Abstract
INTRODUCTION Immunoglobulin A nephropathy (IgAN) is one of the most common glomerulonephritic diseases in the world. Several lines of evidence have suggested that dyslipidemia is related to the disease progression and prognosis of IgAN. However, the study is scarce on the clinicopathological characteristics and outcomes of IgAN with dyslipidemia. METHODS This study retrospectively analyzed 234 patients with biopsy-proven idiopathic IgAN at the Department of Nephrology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, between January 2015 and June 2021. The participants were divided into dyslipidemia (n = 119) and non-dyslipidemia (n = 115), and the dyslipidemia group was also divided into the following 4 groups: hypertriglyceridemia group, hypercholesterolemia group, mixed hyperlipidemia group, and low high-density lipoprotein cholesterol group. The estimated glomerular filtration rate (eGFR) was estimated by the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation. RESULTS The prevalence of dyslipidemia in IgAN patients in our center was 50.9% (119/234). The patients with dyslipidemia presented with higher systolic blood pressure (BP), diastolic BP, serum creatinine, uric acid, hemoglobin, proteinuria, and eGFR (p < 0.05). Proportions of males, hypertension, and chronic kidney disease stage 2∼5 were also higher in the dyslipidemia group (p < 0.05). Similarly, the pathological characteristics performed were worse in the dyslipidemia group. Most dyslipidemia patients had a higher percentage of mesangial hypercellularity (M1) and tubular atrophy/interstitial fibrosis (T1∼2) in the Oxford Classification's scoring system (p < 0.05). Multivariate logistic regression analysis revealed that male gender (odds ratio [OR] = 2.397, 95% confidence interval [CI]: 1.051-5.469, p = 0.038) and proteinuria (OR = 1.000, 95% CI: 1.000-1.001, p = 0.035) were possible risk factors for dyslipidemia. A total of 13 patients (13.8%) in the dyslipidemia group had an endpoint event, of which 6 patients (6.4%) had a ≥50% decrease in eGFR from baseline and 7 patients (7.4%) reached the end-stage renal disease stage. Kaplan-Meier survival curve analysis showed that patients in the dyslipidemia group had a worse outcome than those in the non-dyslipidemia group (log-rank test, p = 0.048). CONCLUSIONS IgAN patients with dyslipidemia presented more severe clinicopathological characteristics. Male gender and proteinuria are significantly associated with the occurrence of dyslipidemia in IgAN patients. Patients in the dyslipidemia group had a worse prognosis than those in the non-dyslipidemia group, which may be essential for the disease management of IgAN and help identify the high-risk patients.
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Affiliation(s)
- Sidi Liu
- Department of Nephrology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China,
| | - Zhenzhen Lu
- Department of Nephrology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Zhike Fu
- Department of Nephrology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Huijie Li
- Department of Nephrology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Chuying Gui
- Department of Nephrology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yueyi Deng
- Department of Nephrology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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El-Sherbiny HR, El-Shalofy AS, Samir H. Association between body condition score, testicular haemodynamics and echogenicity, nitric oxide levels, and total antioxidant capacity in rams. Ir Vet J 2023; 76:7. [PMID: 36895047 PMCID: PMC9996858 DOI: 10.1186/s13620-023-00235-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 02/24/2023] [Indexed: 03/11/2023] Open
Abstract
Higher body fatness adversely affects metabolic and hormonal homeostasis. The present work aimed to evaluate the association between body condition score (BCS) and haemodynamic pattern and echogenic appearence of the testes as well as nitric oxide (NO) levels and total antioxidant capacity (TAC). For that, fifteen Ossimi rams were blocked according to their BCS into a lower BCS group (L-BCS:2-2.5; n = 5), medium BCS group (M-BCS:3-3.5; n = 5), and higher BCS group (H-BCS:4-4.5; n = 5). Rams were examined for testicular haemodynamics (TH; Doppler ultrasonography), testicular echotexture (TE; B-mode image software analysis), and serum levels of NO and TAC (colorimetric). Results are presented as means ± standard error of the mean. There was a significant (P < 0.05) difference in the resistive index and pulsatility index means among the groups under experimentation, being the least in the L-BCS group (0.43 ± 0.02 and 0.57 ± 0.04, respectively) compared to the M-BCS (0.53 ± 0.03 and 0.77 ± 0.03, respectively) and H-BCS rams (0.57 ± 0.01 and 0.86 ± 0.03, respectively). Among blood flow velocity measurements [peak systolic, end-diastolic (EDV), and time-average maximum], only EDV showed significant (P < 0.05) higher values in the L-BCS group (17.06 ± 1.03 cm/s) compared to M-BCS (12.58 ± 0.67 cm/s) and H-BCS (12.51 ± 0.61 cm/s) groups. Regarding the TE results, there were no significant differences among the examined groups. There were significant differences (P < 0.01) in the concentrations of TAC and NO among the groups under experimentation, in which the L-BCS rams had the highest levels of TAC and NO in their sera (0.90 ± 0.05 mM/L and 62.06 ± 2.72 μM/L, respectively) than the M-BCS (0.058 ± 0.05 mM/L and 47.89 ± 1.49 μM/L, respectively) and H-BCS rams (0.45 ± 0.03 mM/L and 49.93 ± 3.63 μM/L, respectively). In conclusion, body condition score is associated with both testicular hemodynamic and the antioxidant capacity in rams.
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Affiliation(s)
- Hossam R El-Sherbiny
- Theriogenology Department, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt.
| | - Amr S El-Shalofy
- Theriogenology Department, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Haney Samir
- Theriogenology Department, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
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Kwak J, Shin D. Gene-Nutrient Interactions in Obesity: COBLL1 Genetic Variants Interact with Dietary Fat Intake to Modulate the Incidence of Obesity. Int J Mol Sci 2023; 24:ijms24043758. [PMID: 36835164 PMCID: PMC9959357 DOI: 10.3390/ijms24043758] [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] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/26/2023] [Accepted: 02/02/2023] [Indexed: 02/16/2023] Open
Abstract
The COBLL1 gene is associated with leptin, a hormone important for appetite and weight maintenance. Dietary fat is a significant factor in obesity. This study aimed to determine the association between COBLL1 gene, dietary fat, and incidence of obesity. Data from the Korean Genome and Epidemiology Study were used, and 3055 Korean adults aged ≥ 40 years were included. Obesity was defined as a body mass index ≥ 25 kg/m2. Patients with obesity at baseline were excluded. The effects of the COBLL1 rs6717858 genotypes and dietary fat on incidence of obesity were evaluated using multivariable Cox proportional hazard models. During an average follow-up period of 9.2 years, 627 obesity cases were documented. In men, the hazard ratio (HR) for obesity was higher in CT, CC carriers (minor allele carriers) in the highest tertile of dietary fat intake than for men with TT carriers in the lowest tertile of dietary fat intake (Model 1: HR: 1.66, 95% confidence interval [CI]: 1.07-2.58; Model 2: HR: 1.63, 95% CI: 1.04-2.56). In women, the HR for obesity was higher in TT carriers in the highest tertile of dietary fat intake than for women with TT carriers in the lowest tertile of dietary fat intake (Model 1: HR: 1.49, 95% CI: 1.08-2.06; Model 2: HR: 1.53, 95% CI: 1.10-2.13). COBLL1 genetic variants and dietary fat intake had different sex-dependent effects in obesity. These results imply that a low-fat diet may protect against the effects of COBLL1 genetic variants on future obesity risk.
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Huang T, Howse FM, Stachenfeld NS, Usselman CW. Correlations between salivary- and blood-derived gonadal hormone assessments and implications for inclusion of female participants in research studies. Am J Physiol Heart Circ Physiol 2023; 324:H33-H46. [PMID: 36426884 DOI: 10.1152/ajpheart.00399.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Even in the 21st century, female participants continue to be underrepresented in human physiology research. This underrepresentation is attributable in part to the perception that the inclusion of females is more time consuming, less convenient, and more expensive relative to males because of the need to account for the menstrual cycle in cardiovascular study designs. Accounting for menstrual cycle-induced fluctuations in gonadal hormones is important, given established roles in governing vascular function and evidence that failure to consider gonadal hormone fluctuations can result in misinterpretations of biomarkers of cardiovascular disease. Thus, for cardiovascular researchers, the inclusion of females in research studies implies a necessity to predict, quantify, and/or track indexes of menstrual cycle-induced changes in hormones. It is here that methodologies are lacking. Gold standard measurement requires venous blood samples, but this technique is invasive and can become both expensive and technically preclusive when serial measurements are required. To this end, saliva-derived measures of gonadal hormones provide a means of simple, noninvasive hormone tracking. To investigate the feasibility of this technique as a means of facilitating research designs that take the menstrual cycle into account, the purpose of this review was to examine literature comparing salivary and blood concentrations of the primary gonadal hormones that fluctuate across the menstrual cycle: estradiol and progesterone. The data indicate that there appear to be valid and promising applications of salivary gonadal hormone monitoring, which may aid in the inclusion of female participants in cardiovascular research studies.
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Affiliation(s)
- Tingyu Huang
- Cardiovascular Health and Autonomic Regulation Laboratory, Department of Kinesiology and Physical Education, McGill University, Montreal, Quebec, Canada
| | - Fiona M Howse
- Cardiovascular Health and Autonomic Regulation Laboratory, Department of Kinesiology and Physical Education, McGill University, Montreal, Quebec, Canada
| | - Nina S Stachenfeld
- The John B. Pierce Laboratory, New Haven, Connecticut.,Yale School of Medicine, New Haven, Connecticut
| | - Charlotte W Usselman
- Cardiovascular Health and Autonomic Regulation Laboratory, Department of Kinesiology and Physical Education, McGill University, Montreal, Quebec, Canada.,McGill Research Centre for Physical Activity and Health, McGill University, Montreal, Quebec, Canada
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Lee JS, Lee YA, Shin CH, Suh DI, Lee YJ, Yon DK. Long-term health outcomes of early menarche in women: an umbrella review. QJM 2022; 115:837-847. [PMID: 35929081 DOI: 10.1093/qjmed/hcac187] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 07/05/2022] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND There is limited comprehensive evidence on the potential association between early menarche and subsequent health outcomes. AIM To evaluate the existing evidence for the association of early menarche with later health outcomes and assesse the strength and validity of the evidence for these associations. DESIGN Umbrella review. METHODS We searched PubMed, Web of Science, Embase, CINAHL, Cochrane Database of Systematic Reviews and Google Scholar, and manually screened retrieved references to find systematic reviews and meta-analyses from inception to July 2021. Early menarche was defined by taking into account ethnicity and birth year, and the outcomes were long-term consequences in adulthood. RESULTS Thirteen reviews encompassing 283 original articles and over 6.8 million participants from 39 countries across 5 continents were included. In categorical outcomes, early menarche was associated with metabolic syndrome (n = 37 543 pooled adjusted relative risk [aRR] 1.56, 95% confidence interval (CI) 1.33, 1.83; high certainty [Hi]), endometrial cancer (n = 874 188, aRR 1.40, 95% CI 1.17, 1.68; Hi), type 2 diabetes mellitus/impaired glucose tolerance (n = 1 185 444, aRR 1.30, 95% CI 1.19, 1.42; Hi), breast cancer (n = 103 574, aRR 1.19, 95% CI 1.06, 1.33; Hi), death from all causes (n = 152 747, aRR 1.11, 95% CI 1.03, 1.19; Hi), obesity (n = 54 006, aRR 1.68, 95% CI 1.53, 1.84; moderate certainty [Mod]), gestational diabetes mellitus (n = 48 535, aRR 1.32, 95% CI 1.09, 1.58; Mod), hypertension (n = 1 682 689, aRR 1.24, 95% CI 1.20, 1.29; Mod), endometriosis (n = 885 390, aRR 1.22, 95% CI 1.09, 1.37; Mod), ovarian cancer (n = 1 022 451, aRR 1.17, 95% CI 1.04, 1.31; Mod) and asthma (n = 22 859, aRR 1.31, 95% CI 1.09, 1.57; low certainty [Lo]). For continuous outcomes, early menarche was associated with increased body mass index (BMI) in adults ≥40 years of age (n = 121 943, adjusted pooled standardized mean difference [aSMD] 0.30, 95% CI 0.28, 0.32; Mod), BMI in adults <40 years of age (n = 124 728, aSMD 0.39, 95% CI 0.36, 0.43; Mod), serum fasting insulin level (n = 17 020, aSMD 0.52, 95% CI 0.48, 0.57; Mod) and homeostatic model assessment of insulin resistance (n = 7925, aSMD 0.27, 95% CI 0.19, 0.35; Mod). CONCLUSION We found varied levels of evidence for the association between early menarche and the development of subsequent health problems. Our results recommend that physicians should pay attention to these associations, as early menarche can be a potential indicator of metabolic disorders and female-specific cancer and cause death in women.
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Affiliation(s)
- Jeong-Seon Lee
- From the Department of Pediatrics, Korea University Anam Hospital, Korea University College of Medicine, Seoul, South Korea
| | - Young Ah Lee
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, South Korea
| | - Choong Ho Shin
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, South Korea
| | - Dong In Suh
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, South Korea
| | - Yun Jeong Lee
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, South Korea
| | - Dong Keon Yon
- Center for Digital Health, Medical Science Research Institute, Kyung Hee University College of Medicine, Seoul, South Korea
- Department of Pediatrics, Kyung Hee University College of Medicine, Seoul, South Korea
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Li Z, Lewin M, Ruiz P, Nigra AE, Henderson NB, Jarrett JM, Ward C, Zhu J, Umans JG, O'Leary M, Zhang Y, Ragin-Wilson A, Navas-Acien A. Blood cadmium, lead, manganese, mercury, and selenium levels in American Indian populations: The Strong Heart Study. ENVIRONMENTAL RESEARCH 2022; 215:114101. [PMID: 35977585 PMCID: PMC9644284 DOI: 10.1016/j.envres.2022.114101] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 08/08/2022] [Accepted: 08/09/2022] [Indexed: 05/15/2023]
Abstract
BACKGROUND Many American Indian (AI) communities are in areas affected by environmental contamination, such as toxic metals. However, studies assessing exposures in AI communities are limited. We measured blood metals in AI communities to assess historical exposure and identify participant characteristics associated with these levels in the Strong Heart Study (SHS) cohort. METHOD Archived blood specimens collected from participants (n = 2014, all participants were 50 years of age and older) in Arizona, Oklahoma, and North and South Dakota during SHS Phase-III (1998-1999) were analyzed for cadmium, lead, manganese, mercury, and selenium using inductively coupled plasma triple quadrupole mass spectrometry. We conducted descriptive analyses for the entire cohort and stratified by selected subgroups, including selected demographics, health behaviors, income, waist circumference, and body mass index. Bivariate associations were conducted to examine associations between blood metal levels and selected socio-demographic and behavioral covariates. Finally, multivariate regression models were used to assess the best model fit that predicted blood metal levels. FINDINGS All elements were detected in 100% of study participants, with the exception of mercury (detected in 73% of participants). The SHS population had higher levels of blood cadmium and manganese than the general U.S. population 50 years and older. The median blood mercury in the SHS cohort was at about 30% of the U.S. reference population, potentially due to low fish consumption. Participants in North Dakota and South Dakota had the highest blood cadmium, lead, manganese, and selenium, and the lowest total mercury levels, even after adjusting for covariates. In addition, each of the blood metals was associated with selected demographic, behavioral, income, and/or weight-related factors in multivariate models. These findings will help guide the tribes to develop education, outreach, and strategies to reduce harmful exposures and increase beneficial nutrient intake in these AI communities.
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Affiliation(s)
- Zheng Li
- Office of Community Health and Hazard Assessment, Agency for Toxic Substances and Disease Registry, Centers for Disease Control and Prevention, Atlanta, GA, USA.
| | - Michael Lewin
- Office of Community Health and Hazard Assessment, Agency for Toxic Substances and Disease Registry, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Patricia Ruiz
- Office of Innovation and Analytics, Agency for Toxic Substances and Disease Registry, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Anne E Nigra
- Department of Environmental Health Sciences, School of Public Health, Columbia University, New York City, NY, USA
| | - Noelle B Henderson
- Office of Community Health and Hazard Assessment, Agency for Toxic Substances and Disease Registry, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Jeffery M Jarrett
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Cynthia Ward
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Jianhui Zhu
- MedStar Health Research Institute, Hyattsville, MD, USA
| | - Jason G Umans
- MedStar Health Research Institute, Hyattsville, MD, USA; Georgetown-Howard Universities Center for Clinical and Translational Science, Washington DC, USA
| | - Marcia O'Leary
- Missouri Breaks Industries and Research, Inc., Eagle Butte, SD, USA
| | - Ying Zhang
- Center for American Indian Health Research, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Angela Ragin-Wilson
- Office of Associate Director, Agency for Toxic Substances and Disease Registry, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Ana Navas-Acien
- Department of Environmental Health Sciences, School of Public Health, Columbia University, New York City, NY, USA
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11
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Nakamura S, Tanaka Iii IB, Komura J, Tanaka S. PREMATURE MENOPAUSE AND OBESITY DUE TO OOCYTE LOSS IN FEMALE MICE CHRONICALLY EXPOSED TO LOW DOSE-RATE γ-RAYS. RADIATION PROTECTION DOSIMETRY 2022; 198:926-933. [PMID: 36083721 DOI: 10.1093/rpd/ncac014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 01/12/2022] [Accepted: 01/23/2022] [Indexed: 06/15/2023]
Abstract
In previous reports, the authors showed a significant overall increase in neoplasms originating from the ovaries (2007) and increased body weights (2007, 2010) in female B6C3F1 mice chronically exposed to low dose-rate γ-rays at 20 mGy/day (total doses = 8 (2007) or 6 Gy (2010)), as well as significant increases in serum leptin, total cholesterol, adipose tissue deposits and liver lipid content (2010). The present study chronicles the progression of ovarian failure in relation to obesity and dyslipidemia in female B6C3F1 mice chronically exposed to low dose-rate of γ-rays from 9 to 43 weeks of age (total dose = 4.8 Gy). We monitored changes in body weights, estrus cycles, ovarian follicle counts, serum cholesterol and serum leptin. The number of mice with irregular estrus cycles and increased body weights (with increased fat deposits) significantly increased from 30-36 weeks of age. Depletion of oocytes in ovaries from irradiated mice at 30 weeks of age (accumulated dose = 3 Gy) was also observed. Findings suggest that obesity in female B6C3F1 mice continuously irradiated with low dose-rate of γ-rays at 20 mGy/day is a consequence of premature menopause due to radiation-induced oocyte depletion.
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Affiliation(s)
- S Nakamura
- Department of Radiobiology, Institute for Environmental Sciences, 2-121, Hacchazawa, Takahoko, Rokkasho, Kamikita, Aomori 039-3213, Japan
| | - I B Tanaka Iii
- Department of Radiobiology, Institute for Environmental Sciences, 2-121, Hacchazawa, Takahoko, Rokkasho, Kamikita, Aomori 039-3213, Japan
| | - J Komura
- Department of Radiobiology, Institute for Environmental Sciences, 2-121, Hacchazawa, Takahoko, Rokkasho, Kamikita, Aomori 039-3213, Japan
| | - S Tanaka
- Department of Radiobiology, Institute for Environmental Sciences, 2-121, Hacchazawa, Takahoko, Rokkasho, Kamikita, Aomori 039-3213, Japan
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12
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Hazelwood E, Sanderson E, Tan VY, Ruth KS, Frayling TM, Dimou N, Gunter MJ, Dossus L, Newton C, Ryan N, Pournaras DJ, O'Mara TA, Davey Smith G, Martin RM, Yarmolinsky J. Identifying molecular mediators of the relationship between body mass index and endometrial cancer risk: a Mendelian randomization analysis. BMC Med 2022; 20:125. [PMID: 35436960 PMCID: PMC9017004 DOI: 10.1186/s12916-022-02322-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 03/03/2022] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Endometrial cancer is the most common gynaecological cancer in high-income countries. Elevated body mass index (BMI) is an established modifiable risk factor for this condition and is estimated to confer a larger effect on endometrial cancer risk than any other cancer site. However, the molecular mechanisms underpinning this association remain unclear. We used Mendelian randomization (MR) to evaluate the causal role of 14 molecular risk factors (hormonal, metabolic and inflammatory markers) in endometrial cancer risk. We then evaluated and quantified the potential mediating role of these molecular traits in the relationship between BMI and endometrial cancer using multivariable MR. METHODS Genetic instruments to proxy 14 molecular risk factors and BMI were constructed by identifying single-nucleotide polymorphisms (SNPs) reliably associated (P < 5.0 × 10-8) with each respective risk factor in previous genome-wide association studies (GWAS). Summary statistics for the association of these SNPs with overall and subtype-specific endometrial cancer risk (12,906 cases and 108,979 controls) were obtained from a GWAS meta-analysis of the Endometrial Cancer Association Consortium (ECAC), Epidemiology of Endometrial Cancer Consortium (E2C2) and UK Biobank. SNPs were combined into multi-allelic models and odds ratios (ORs) and 95% confidence intervals (95% CIs) were generated using inverse-variance weighted random-effects models. The mediating roles of the molecular risk factors in the relationship between BMI and endometrial cancer were then estimated using multivariable MR. RESULTS In MR analyses, there was strong evidence that BMI (OR per standard deviation (SD) increase 1.88, 95% CI 1.69 to 2.09, P = 3.87 × 10-31), total testosterone (OR per inverse-normal transformed nmol/L increase 1.64, 95% CI 1.43 to 1.88, P = 1.71 × 10-12), bioavailable testosterone (OR per natural log transformed nmol/L increase: 1.46, 95% CI 1.29 to 1.65, P = 3.48 × 10-9), fasting insulin (OR per natural log transformed pmol/L increase: 3.93, 95% CI 2.29 to 6.74, P = 7.18 × 10-7) and sex hormone-binding globulin (SHBG, OR per inverse-normal transformed nmol/L increase 0.71, 95% CI 0.59 to 0.85, P = 2.07 × 10-4) had a causal effect on endometrial cancer risk. Additionally, there was suggestive evidence that total serum cholesterol (OR per mg/dL increase 0.90, 95% CI 0.81 to 1.00, P = 4.01 × 10-2) had an effect on endometrial cancer risk. In mediation analysis, we found evidence for a mediating role of fasting insulin (19% total effect mediated, 95% CI 5 to 34%, P = 9.17 × 10-3), bioavailable testosterone (15% mediated, 95% CI 10 to 20%, P = 1.43 × 10-8) and SHBG (7% mediated, 95% CI 1 to 12%, P = 1.81 × 10-2) in the relationship between BMI and endometrial cancer risk. CONCLUSIONS Our comprehensive MR analysis provides insight into potential causal mechanisms linking BMI with endometrial cancer risk and suggests targeting of insulinemic and hormonal traits as a potential strategy for the prevention of endometrial cancer.
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Affiliation(s)
- Emma Hazelwood
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK
- Bristol Medical School, University of Bristol, Bristol, UK
| | - Eleanor Sanderson
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK
- Bristol Medical School, University of Bristol, Bristol, UK
| | - Vanessa Y Tan
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK
- Bristol Medical School, University of Bristol, Bristol, UK
| | - Katherine S Ruth
- University of Exeter Medical School, University of Exeter, Exeter, UK
| | - Timothy M Frayling
- Genetics of Complex Traits, College of Medicine and Health, University of Exeter, Exeter, UK
| | - Niki Dimou
- Nutrition and Metabolism Branch, International Agency for Research on Cancer, Lyon, France
| | - Marc J Gunter
- Nutrition and Metabolism Branch, International Agency for Research on Cancer, Lyon, France
| | - Laure Dossus
- Nutrition and Metabolism Branch, International Agency for Research on Cancer, Lyon, France
| | - Claire Newton
- Department of Gynecology, St Michaels Hospital University Hospitals Bristol NHS Foundation Trust, Bristol, UK
| | - Neil Ryan
- Department of Gynecology, St Michaels Hospital University Hospitals Bristol NHS Foundation Trust, Bristol, UK
- The Academic Women's Health Unit, Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | - Dimitri J Pournaras
- Department of Upper GI and Bariatric/Metabolic Surgery, North Bristol NHS Trust, Southmead Hospital, Bristol, UK
| | - Tracy A O'Mara
- Department of Genetics and Computational Biology, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - George Davey Smith
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK
- Bristol Medical School, University of Bristol, Bristol, UK
| | - Richard M Martin
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK
- Bristol Medical School, University of Bristol, Bristol, UK
- National Institute for Health Research Bristol Biomedical Research Centre, University of Bristol, University Hospitals Bristol and Weston NHS Foundation Trust, Bristol, UK
| | - James Yarmolinsky
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK.
- Bristol Medical School, University of Bristol, Bristol, UK.
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13
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Dembitsky VM. In Silico Prediction of Steroids and Triterpenoids as Potential Regulators of Lipid Metabolism. Mar Drugs 2021; 19:650. [PMID: 34822521 PMCID: PMC8618826 DOI: 10.3390/md19110650] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 11/12/2021] [Accepted: 11/19/2021] [Indexed: 12/12/2022] Open
Abstract
This review focuses on a rare group of steroids and triterpenoids that share common properties as regulators of lipid metabolism. This group of compounds is divided by the type of chemical structure, and they represent: aromatic steroids, steroid phosphate esters, highly oxygenated steroids such as steroid endoperoxides and hydroperoxides, α,β-epoxy steroids, and secosteroids. In addition, subgroups of carbon-bridged steroids, neo steroids, miscellaneous steroids, as well as synthetic steroids containing heteroatoms S (epithio steroids), Se (selena steroids), Te (tellura steroids), and At (astatosteroids) were presented. Natural steroids and triterpenoids have been found and identified from various sources such as marine sponges, soft corals, starfish, and other marine invertebrates. In addition, this group of rare lipids is found in fungi, fungal endophytes, and plants. The pharmacological profile of the presented steroids and triterpenoids was determined using the well-known computer program PASS, which is currently available online for all interested scientists and pharmacologists and is currently used by research teams from more than 130 countries of the world. Our attention has been focused on the biological activities of steroids and triterpenoids associated with the regulation of cholesterol metabolism and related processes such as anti-hyperlipoproteinemic activity, as well as the treatment of atherosclerosis, lipoprotein disorders, or inhibitors of cholesterol synthesis. In addition, individual steroids and triterpenoids were identified that demonstrated rare or unique biological activities such as treating neurodegenerative diseases, Alzheimer's, and Parkinson's diseases with a high degree of certainty over 95 percent. For individual steroids or triterpenoids or a group of compounds, 3D drawings of their predicted biological activities are presented.
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Affiliation(s)
- Valery M Dembitsky
- Centre for Applied Research, Innovation and Entrepreneurship, Lethbridge College, 3000 College Drive South, Lethbridge, AB T1K 1L6, Canada
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14
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Tokui T, Kawakita T, Yanagihara R, Kamada S, Minato S, Takeda A, Imaizumi J, Yamamoto Y, Yoshida K, Kato T, Irahara M, Iwasa T. Effects of gonadal status and the estrogen milieu on hypothalamic oxytocin gene expression and serum oxytocin levels in female rats. Horm Behav 2021; 133:105005. [PMID: 34116458 DOI: 10.1016/j.yhbeh.2021.105005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 05/10/2021] [Accepted: 05/11/2021] [Indexed: 10/21/2022]
Abstract
Oxytocin (OT) and its receptor (OTR) play various roles in the central and peripheral regulation of appetite and body weight. Previously, we have shown that the administration of OT markedly decreased appetite and body weight gain in ovariectomized (OVX) obese rats. In addition, recent studies have shown that the endogenous OT system is also affected by endogenous or exogenous estrogen. In this study, we showed that ovariectomy decreased rats' hypothalamic OT/OTR mRNA and serum OT levels, but did not affect their visceral fat OTR mRNA levels. The chronic administration of estradiol (E2) abrogated these ovariectomy-induced changes; i.e., it increased the rats' hypothalamic OT/OTR mRNA and serum OT levels, and may be associated with reductions in food intake and body weight gain. In addition, acute E2 administration increased the rats' hypothalamic OTR mRNA and serum OT levels, but did not affect their hypothalamic OT mRNA levels. Taken together, these results suggest that endogenous OT and/or OTR expression might be positively regulated by E2 and that the suppressive effects of E2 on appetite and body weight gain might be mediated, at least in part, by the OT system. Thus, we consider that OT might be a target hormone to pursue subsequent interventions of menopause for menopause-induced metabolic disorders.
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Affiliation(s)
- Takako Tokui
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-Cho, Tokushima 770-8503, Japan
| | - Takako Kawakita
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-Cho, Tokushima 770-8503, Japan
| | - Rie Yanagihara
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-Cho, Tokushima 770-8503, Japan
| | - Shuhei Kamada
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-Cho, Tokushima 770-8503, Japan
| | - Saki Minato
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-Cho, Tokushima 770-8503, Japan
| | - Asuka Takeda
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-Cho, Tokushima 770-8503, Japan
| | - Junki Imaizumi
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-Cho, Tokushima 770-8503, Japan
| | - Yuri Yamamoto
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-Cho, Tokushima 770-8503, Japan
| | - Kanako Yoshida
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-Cho, Tokushima 770-8503, Japan
| | - Takeshi Kato
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-Cho, Tokushima 770-8503, Japan
| | - Minoru Irahara
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-Cho, Tokushima 770-8503, Japan
| | - Takeshi Iwasa
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-Cho, Tokushima 770-8503, Japan.
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15
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Houghton SC, Eliassen H, Tamimi RM, Willett WC, Rosner BA, Hankinson SE. Central Adiposity and Subsequent Risk of Breast Cancer by Menopause Status. J Natl Cancer Inst 2021; 113:900-908. [PMID: 33367714 PMCID: PMC8491796 DOI: 10.1093/jnci/djaa197] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 08/25/2020] [Accepted: 12/01/2020] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Increased body mass index (BMI) is associated with higher postmenopausal breast cancer risk and lower premenopausal breast cancer risk. Less is known about the central adiposity-breast cancer risk association, particularly for tumor subtypes. METHODS We used prospective waist (WC) and hip circumference (HC) measures in the Nurses' Health Studies. We examined associations of WC, HC, and waist-to-hip ratio (WHR) with breast cancer independent of BMI, by menopausal status. Cox proportional hazards models estimated the hazard ratios (HRs) and 95% confidence intervals (CIs) adjusting for breast cancer risk factors, with and without BMI. RESULTS Adjusting for BMI, WC and HC were not associated, and WHR was positively associated with premenopausal breast cancer risk (WHR, quintile 5 vs 1: HRQ5vQ1, BMI-adjusted = 1.27, 95% CI = 1.04 to 1.54; Ptrend = .01), particularly for estrogen receptor-negative (ER-) and progesterone receptor-negative (PR-) and basal-like breast cancers. Premenopausal WC, HC, and WHR were not associated with postmenopausal breast cancer risk, with or without BMI adjustment. Postmenopausal WC, HC, and WHR were each positively associated with postmenopausal breast cancer (eg, WC HRQ5vsQ1 = 1.59, 95% CI = 1.36 to 1.86); after adjustment for BMI, only WC remained statistically significant (HRQ5vsQ1, BMI-adjusted = 1.38, 95% CI = 1.15 to 1.64; Ptrend = .002). In postmenopausal women, associations were stronger among never-users of hormone therapy and for ER+/PR+ breast cancers. CONCLUSIONS Central adiposity was positively associated with pre- and postmenopausal breast cancers independent of BMI. This suggests that mechanisms other than estrogen may also play a role in the relationship between central adiposity and breast cancer. Maintaining a healthy waist circumference may decrease pre- and postmenopausal breast cancer risk.
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Affiliation(s)
- Serena C Houghton
- Department of Biostatistics and Epidemiology,
University of Massachusetts Amherst, Amherst, MA, USA
| | - Heather Eliassen
- Channing Division of Network Medicine, Brigham and
Women’s Hospital and Harvard Medical School, Boston, MA,
USA
- Department of Epidemiology, Harvard T.H. Chan School
of Public Health, Boston, MA, USA
| | - Rulla M Tamimi
- Department of Epidemiology, Harvard T.H. Chan School
of Public Health, Boston, MA, USA
- Department of Population Health Sciences, Weill
Cornell Medicine, New York, NY, USA
| | - Walter C Willett
- Channing Division of Network Medicine, Brigham and
Women’s Hospital and Harvard Medical School, Boston, MA,
USA
- Department of Epidemiology, Harvard T.H. Chan School
of Public Health, Boston, MA, USA
- Department of Nutrition, Harvard T.H. Chan School of
Public Health, Boston, MA, USA
| | - Bernard A Rosner
- Channing Division of Network Medicine, Brigham and
Women’s Hospital and Harvard Medical School, Boston, MA,
USA
- Department of Biostatistics, Harvard T.H. Chan
School of Public Health, Boston, MA, USA
| | - Susan E Hankinson
- Department of Biostatistics and Epidemiology,
University of Massachusetts Amherst, Amherst, MA, USA
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16
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Obesity-associated cardiovascular risk in women: hypertension and heart failure. Clin Sci (Lond) 2021; 135:1523-1544. [PMID: 34160010 DOI: 10.1042/cs20210384] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 05/14/2021] [Accepted: 06/07/2021] [Indexed: 02/07/2023]
Abstract
The pathogenesis of obesity-associated cardiovascular diseases begins long prior to the presentation of a cardiovascular event. In both men and women, cardiovascular events, and their associated hospitalizations and mortality, are often clinically predisposed by the presentation of a chronic cardiovascular risk factor. Obesity increases the risk of cardiovascular diseases in both sexes, however, the clinical prevalence of obesity, as well as its contribution to crucial cardiovascular risk factors is dependent on sex. The mechanisms via which obesity leads to cardiovascular risk is also discrepant in women between their premenopausal, pregnancy and postmenopausal phases of life. Emerging data indicate that at all reproductive statuses and ages, the presentation of a cardiovascular event in obese women is strongly associated with hypertension and its subsequent chronic risk factor, heart failure with preserved ejection fraction (HFpEF). In addition, emerging evidence indicates that obesity increases the risk of both hypertension and heart failure in pregnancy. This review will summarize clinical and experimental data on the female-specific prevalence and mechanisms of hypertension and heart failure in women across reproductive stages and highlight the particular risks in pregnancy as well as emerging data in a high-risk ethnicity in women of African ancestry (AA).
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17
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Zhu Z, Chen Y, Ren J, Dawsey SM, Yin J, Freedman ND, Fan JH, Taylor PR, Liu Y, Qiao YL, Abnet CC. Serum Levels of Androgens, Estrogens, and Sex Hormone Binding Globulin and Risk of Primary Gastric Cancer in Chinese Men: A Nested Case-Control Study. Cancer Prev Res (Phila) 2021; 14:659-666. [PMID: 33766833 DOI: 10.1158/1940-6207.capr-20-0497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 02/20/2021] [Accepted: 03/22/2021] [Indexed: 12/24/2022]
Abstract
Gastric cancer shows a strong male predominance, and sex steroid hormones have been hypothesized to explain this sex disparity. Previous studies examining the associations between sex hormones and sex hormone binding globulin (SHBG) and risk of gastric cancer come primarily from western populations and additional studies in diverse populations will help us better understand the association. We performed a nested case-control study in Linxian Nutrition Intervention Trials cohorts to evaluate the associations among Chinese men, where we had sufficient cases to perform a well-powered study. Using radioimmunoassays and immunoassays, we quantitated androgens, estrogens, and SHBG in baseline serum from 328 men that developed noncardia gastric cancer and matched controls. We used multivariable unconditional logistic regression to calculate ORs and 95% confidence intervals (CI) and explored interactions with body mass index (BMI), age, alcohol drinking, smoking, and follow-up time. Subjects with SHBG in the highest quartile, as compared with those in the lowest quartile, had a significantly increased risk of gastric cancer (OR = 1.87; 95% CI, 1.01-3.44). We found some evidence for associations of sex steroid hormones in men with lower BMI. Our study found a novel association suggesting that higher serum concentrations of SHBG may be associated with risk of gastric cancer in men. We found no overall associations with sex hormones themselves, but future studies should expand the scope of these studies to include women and further explore whether BMI modifies a potential association. PREVENTION RELEVANCE: It was the first study to investigate the association of gastric cancer with prediagnostic sex steroid hormones and SHBG in an Asian male population. Although there were no overall associations for sex steroid hormone concentrations, higher concentrations of SHBG was associated with increased risk of noncardia gastric cancer.
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Affiliation(s)
- Zhikai Zhu
- Department of Cancer Epidemiology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.,School of Health Policy and Management, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Yingxi Chen
- Metabolic Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland
| | - Jiansong Ren
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Sanford M Dawsey
- Metabolic Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland
| | - Jian Yin
- Department of Cancer Epidemiology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Neal D Freedman
- Metabolic Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland
| | - Jin-Hu Fan
- Department of Cancer Epidemiology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Philip R Taylor
- Metabolic Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland
| | - Yuanli Liu
- School of Health Policy and Management, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.
| | - You-Lin Qiao
- Department of Cancer Epidemiology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.
| | - Christian C Abnet
- Metabolic Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland
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18
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Kim JH, Lim JS. Early menarche and its consequence in Korean female: reducing fructose intake could be one solution. Clin Exp Pediatr 2021; 64:12-20. [PMID: 32403898 PMCID: PMC7806406 DOI: 10.3345/cep.2019.00353] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 12/27/2019] [Accepted: 02/28/2020] [Indexed: 12/31/2022] Open
Abstract
The mean age at menarche (AAM) of Korean females has been rapidly decreasing over the last 50 years; currently, the prevalence of early menarche (<12 years) is 22.3%. Female adolescents who experience early menarche are known to be at greater risk of psychosocial and behavioral problems along with several physical health problems such as menstrual problems. They also tend to achieve a shorter final height and develop obesity. Population-based Korean studies have shown a strong association between early menarche and the risk of obesity, insulin resistance, metabolic syndrome, nonalcoholic fatty liver disease, diabetes, breast cancer, and cardiovascular disease in adulthood. Although the exact mechanism of how early menarche causes cardiometabolic derangement in later adulthood is unknown, childhood obesity and insulin resistance might be major contributors. Recent studies demonstrated that an excessive consumption of fructose might underlie the development of obesity and insulin resistance along with an earlier AAM. A positive association was observed between sugar-sweetened beverages (a major source of fructose) intake and obesity, metabolic syndrome, insulin resistance, and cardiometabolic risk in Korean females. In pediatrics, establishing risk factors is important in preventing disease in later life. In this regard, early menarche is a simple and good marker for the management of cardiometabolic diseases in adulthood. Decreasing one's fructose intake might prevent early menarche as well as the development of obesity, insulin resistance, and cardiometabolic diseases.
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Affiliation(s)
- Ji Hyun Kim
- Department of Pediatrics, Dongguk University Ilsan Hospital, Goyang, Korea
| | - Jung Sub Lim
- Department of Pediatrics, Korea Cancer Center Hospital, Seoul, Korea
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Arthur RS, Kirsh VA, Mossavar-Rahmani Y, Xue X, Rohan TE. Sugar-containing beverages and their association with risk of breast, endometrial, ovarian and colorectal cancers among Canadian women. Cancer Epidemiol 2020; 70:101855. [PMID: 33220638 DOI: 10.1016/j.canep.2020.101855] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 10/29/2020] [Accepted: 10/30/2020] [Indexed: 12/22/2022]
Abstract
BACKGROUND The association of sugar containing beverages (SCBs) with risk of breast, endometrial, ovarian and colorectal cancers is unclear. Therefore, we investigated these associations in the Canadian Study of Diet, Lifestyle, and Health. METHODS The study population comprised an age-stratified subcohort of 3185 women and 848, 161, 91 and 243 breast, endometrial, ovarian and colorectal cancer cases, respectively. We used Cox proportional hazards regression models modified for the case-cohort design to assess the associations of SCBs with risk of the aforementioned cancers. RESULTS Compared to SCB intake in the lowest tertile, SCB intake in the highest tertile was positively associated with endometrial cancer risk (HRT3 vs T1 = 1.58, 95 % CI = 1.08-2.33 and 1.78, 95 % CI = 1.12-2.81 for overall and Type 1 endometrial cancer, respectively) and ovarian cancer (HRT3 vs T1 = 1.76, 95 % CI: 1.09-2.83). Fruit juice intake was also positively associated with risk of Type 1endometrial (HRT3 vs T1 = 1.63, 95 % CI = 1.03-2.60). After excluding women with diabetes or cardiovascular diseases, we also observed sugar-sweetened beverages (SSBs) intake in the highest tertile was associated with higher risk of Type 1 endometrial cancer (HR T3 vs T1 = 1.65; 95 % CI: 1.03-2.64). None of the beverages was associated with risk of breast or colorectal cancer. CONCLUSION We conclude that, in this cohort, relatively high SCB intake was associated with higher risk of endometrial and ovarian cancers, but not of breast or colorectal cancers. Our findings also suggest that relatively high SSB and fruit juice intake are associated with higher risk of Type 1 endometrial cancer.
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Affiliation(s)
- Rhonda S Arthur
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY, 10461, United States.
| | - Victoria A Kirsh
- Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada
| | - Yasmin Mossavar-Rahmani
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY, 10461, United States
| | - Xiaonan Xue
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY, 10461, United States
| | - Thomas E Rohan
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY, 10461, United States
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20
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Briansó-Llort L, Fuertes-Rioja L, Ramos-Perez L, Hernandez C, Simó R, Selva DM. Caffeine Upregulates Hepatic Sex Hormone-Binding Globulin Production by Increasing Adiponectin Through AKT/FOXO1 Pathway in White Adipose Tissue. Mol Nutr Food Res 2020; 64:e1901253. [PMID: 32652892 DOI: 10.1002/mnfr.201901253] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 07/02/2020] [Indexed: 01/23/2023]
Abstract
SCOPE Epidemiological studies have shown that caffeine increases serum sex hormone-binding globulin (SHBG) levels. The relationship between caffeine and SHBG production has never been studied before at molecular level. The aim of this study is to examine whether caffeine regulates SHBG production and to determine the associated molecular mechanisms. METHODS AND RESULTS Two different studies are performed; in vitro studies using human HepG2 cells treated with caffeine (100 and 500 µm) and in vivo studies using a humanized SHBG transgenic mice drinking caffeine in the water (0.1 mg mL-1 ) for 12 days. The results show that caffeine does not change SHBG production in HepG2 cells. By contrast, caffeine treatment increases significantly hepatic SHBG production in human SHBG transgenic mice when compared with control mice. Caffeine increases adiponectin levels in epididymal adipose tissue of human SHBG transgenic mice. Moreover, caffeine increases adiponectin production by reducing protein kinase B (AKT) phosphorylation which increases forkhead box protein O1 (FOXO1) protein levels in 3T3-L1 mature adipocytes and human SHBG transgenic mice. Finally, caffeine-induced increase in adiponectin in turn upregulates hepatic hepatocyte nuclear receptor 4-alpha (HNF-4α) levels in human SHBG transgenic mice. CONCLUSIONS The results show that caffeine upregulates hepatic SHBG expression by increasing adiponectin production through AKT/FOXO1 pathway in the adipose tissue.
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Affiliation(s)
- Laura Briansó-Llort
- Diabetes and Metabolism Research Unit, Vall Hebron Institut de Recerca (VHIR), Universitat Autònoma de Barcelona and CIBERDEM (ISCIII), Barcelona, 08035, Spain
| | - Lidia Fuertes-Rioja
- Diabetes and Metabolism Research Unit, Vall Hebron Institut de Recerca (VHIR), Universitat Autònoma de Barcelona and CIBERDEM (ISCIII), Barcelona, 08035, Spain
| | - Lorena Ramos-Perez
- Diabetes and Metabolism Research Unit, Vall Hebron Institut de Recerca (VHIR), Universitat Autònoma de Barcelona and CIBERDEM (ISCIII), Barcelona, 08035, Spain
| | - Cristina Hernandez
- Diabetes and Metabolism Research Unit, Vall Hebron Institut de Recerca (VHIR), Universitat Autònoma de Barcelona and CIBERDEM (ISCIII), Barcelona, 08035, Spain
| | - Rafael Simó
- Diabetes and Metabolism Research Unit, Vall Hebron Institut de Recerca (VHIR), Universitat Autònoma de Barcelona and CIBERDEM (ISCIII), Barcelona, 08035, Spain
| | - David M Selva
- Diabetes and Metabolism Research Unit, Vall Hebron Institut de Recerca (VHIR), Universitat Autònoma de Barcelona and CIBERDEM (ISCIII), Barcelona, 08035, Spain
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21
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Prediagnostic Circulating Levels of Sex Steroid Hormones and SHBG in Relation to Risk of Ductal Carcinoma In Situ of the Breast among UK Women. Cancer Epidemiol Biomarkers Prev 2020; 29:1058-1066. [DOI: 10.1158/1055-9965.epi-19-1302] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 12/11/2019] [Accepted: 02/24/2020] [Indexed: 11/16/2022] Open
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22
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Yang W, Giovannucci EL, Hankinson SE, Chan AT, Ma Y, Wu K, Fuchs CS, Lee IM, Sesso HD, Lin JH, Zhang X. Endogenous sex hormones and colorectal cancer survival among men and women. Int J Cancer 2020; 147:920-930. [PMID: 31863463 DOI: 10.1002/ijc.32844] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 12/10/2019] [Accepted: 12/11/2019] [Indexed: 02/06/2023]
Abstract
Although previous studies have suggested a potential role of sex hormones in the etiology of colorectal cancer (CRC), no study has yet examined the associations between circulating sex hormones and survival among CRC patients. We prospectively assessed the associations of prediagnostic plasma concentrations of estrone, estradiol, free estradiol, testosterone, free testosterone and sex hormone-binding globulin (SHBG) with CRC-specific and overall mortality among 609 CRC patients (370 men and 239 postmenopausal women not taking hormone therapy at blood collection) from four U.S. cohorts. Multivariable hazard ratios (HRs) and 95% confidence intervals (CIs) were estimated using Cox proportional hazard regression. We identified 174 deaths (83 CRC-specific deaths) in men and 106 deaths (70 CRC-specific deaths) in women. In men, higher circulating level of free testosterone was associated with lower risk of overall (the highest vs. lowest tertiles, HR = 0.66, 95% CI, 0.45-0.99, ptrend = 0.04) and possibly CRC-specific mortality (HR = 0.73, 95% CI, 0.41-1.29, ptrend = 0.27). We generally observed nonsignificant inverse associations for other sex steroids, and a positive association for SHBG with CRC-specific mortality among male patients. In women, however, we found a suggestive positive association of estrone with overall (HR = 1.54, 95% CI, 0.92-2.60, ptrend = 0.11) and CRC-specific mortality (HR = 1.96, 95% CI, 1.01-3.84, ptrend = 0.06). Total estradiol, free estradiol and free testosterone were generally suggestively associated with higher risk of mortality among female patients, although not statistically significant. These findings implicated a potential role of endogenous sex hormones in CRC prognosis, which warrant further investigation.
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Affiliation(s)
- Wanshui Yang
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA.,Department of Nutrition, School of Public Health, Anhui Medical University, Hefei, Anhui, People's Republic of China
| | - Edward L Giovannucci
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA.,Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA.,Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA
| | - Susan E Hankinson
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA.,Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA.,Department of Biostatistics and Epidemiology, School of Public Health and Health Sciences, University of Massachusetts, Amherst, MA
| | - Andrew T Chan
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA.,Division of Gastroenterology, Department of Medicine, Massachusetts General Hospital, Boston, MA.,Clinical and Translational Epidemiology Unit (CTEU), Massachusetts General Hospital, Boston, MA
| | - Yanan Ma
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA.,Department of Biostatistics and Epidemiology, School of Public Health, China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Kana Wu
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA
| | - Charles S Fuchs
- Department of Medical Oncology, Yale Cancer Center, New Haven, CT.,Department of Medicine, Yale School of Medicine, New Haven, CT.,Department of Medical Oncology, Smilow Cancer Hospital, New Haven, CT
| | - I-Min Lee
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA.,Division of Preventive Medicine, Department of Medicine Brigham and Women's Hospital and Harvard Medical School, Boston, MA
| | - Howard D Sesso
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA.,Division of Preventive Medicine, Department of Medicine Brigham and Women's Hospital and Harvard Medical School, Boston, MA
| | | | - Xuehong Zhang
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA.,Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA
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23
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Health-Related Quality of Life, Sexuality and Hormone Status after Laparoscopic Roux-En-Y Gastric Bypass in Women. Obes Surg 2019; 30:493-500. [DOI: 10.1007/s11695-019-04197-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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24
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17-DMAG, an Hsp90 inhibitor, ameliorates ovariectomy-induced obesity in rats. Life Sci 2019; 232:116672. [DOI: 10.1016/j.lfs.2019.116672] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 07/11/2019] [Accepted: 07/19/2019] [Indexed: 02/06/2023]
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25
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Redondo MJ, Evans-Molina C, Steck AK, Atkinson MA, Sosenko J. The Influence of Type 2 Diabetes-Associated Factors on Type 1 Diabetes. Diabetes Care 2019; 42:1357-1364. [PMID: 31167894 PMCID: PMC6647039 DOI: 10.2337/dc19-0102] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 04/27/2019] [Indexed: 02/03/2023]
Abstract
Current efforts to prevent progression from islet autoimmunity to type 1 diabetes largely focus on immunomodulatory approaches. However, emerging data suggest that the development of diabetes in islet autoantibody-positive individuals may also involve factors such as obesity and genetic variants associated with type 2 diabetes, and the influence of these factors increases with age at diagnosis. Although these factors have been linked with metabolic outcomes, particularly through their impact on β-cell function and insulin sensitivity, growing evidence suggests that they might also interact with the immune system to amplify the autoimmune response. The presence of factors shared by both forms of diabetes contributes to disease heterogeneity and thus has important implications. Characteristics that are typically considered to be nonimmune should be incorporated into predictive algorithms that seek to identify at-risk individuals and into the designs of trials for disease prevention. The heterogeneity of diabetes also poses a challenge in diagnostic classification. Finally, after clinically diagnosing type 1 diabetes, addressing nonimmune elements may help to prevent further deterioration of β-cell function and thus improve clinical outcomes. This Perspectives in Care article highlights the role of type 2 diabetes-associated genetic factors (e.g., gene variants at transcription factor 7-like 2 [TCF7L2]) and obesity (via insulin resistance, inflammation, β-cell stress, or all three) in the pathogenesis of type 1 diabetes and their impacts on age at diagnosis. Recognizing that type 1 diabetes might result from the sum of effects from islet autoimmunity and type 2 diabetes-associated factors, their interactions, or both affects disease prediction, prevention, diagnosis, and treatment.
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Affiliation(s)
- Maria J Redondo
- Baylor College of Medicine, Texas Children's Hospital, Houston, TX
| | - Carmella Evans-Molina
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN.,Department of Medicine, Indiana University School of Medicine, Indianapolis, IN.,Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN.,Richard L. Roudebush VA Medical Center, Indianapolis, IN
| | - Andrea K Steck
- Barbara Davis Center for Childhood Diabetes, University of Colorado School of Medicine, Aurora, CO
| | - Mark A Atkinson
- Departments of Pathology and Pediatrics, University of Florida Diabetes Institute, Gainesville, FL
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26
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Alinezhad A, Jafari F. The relationship between components of metabolic syndrome and plasma level of sex hormone-binding globulin. Eur J Transl Myol 2019; 29:8196. [PMID: 31354923 PMCID: PMC6615072 DOI: 10.4081/ejtm.2019.8196] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Accepted: 05/17/2019] [Indexed: 11/22/2022] Open
Abstract
Plasma concentration of sex hormone-binding globulin (SHBG), as an androgen binding protein, is impressed by many physiological and environmental factors. Recent studies have shown that plasma level of SHBG is related to some components of metabolic syndrome (MetS); however, in contrast, few articles failed to show any associations between SHBG and MetS. So, this study was conducted to investigate the relationship between Components of Metabolic Syndrome and Plasma Level of Sex Hormone-Binding Globulin. In this study, after measuring the plasma level of SHBG in 84 individuals, the relation between MetS and the plasma level of SHBG was investigated. After evaluating the plasma level of SHBG and metabolic abnormalities in men and women, we investigated the factors which mentioned above in two groups including patients with and without MetS. Also, the metabolic abnormalities which evaluated in this study including plasma level of 25-hydroxyvitamin D, serum uric acid (SUA), Albumin, lipid profiles and etc. according to five components of MetS. Our result shows that SHBG could contributed to some laboratory parameters such as LDL-C (P<0.05), total cholesterol (P<0.05), triglycerides (P<0.05) and etc. in men, but not in women. On the other hand, we observed that concentration of SHBG is higher in patients with MetS (P<0.05); however, results from our experiment showed that there is no relation between lower level of SHBG and five components of MetS such as central obesity, raised fasting plasma glucose (FPG) (P>0.05), reduced HDL-C (P>0.05), raised triglycerides (P>0.05) and raised blood pressure (P>0.05) in both men and women. There is a significant association between SHBG and Log-Hip Circumference (P<0.05), Non-HDL-C (P<0.05) and Log-25(OH)D (P<0.05) was seen in this cross-section study in both men and women. Results obtained from our study suggest that SHBG is not a powerful enough factor to use as a predictor of MetS alone and there is no association between plasma level of SHBG and development of five components of MetS, however, lower SHBG level may contributed to lipid profiles.
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Affiliation(s)
- Amin Alinezhad
- Department of Clinical Pharmacy, School of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Jafari
- Information Technology Engineering, Qazvin Branch, Islamic Azad University, Qazvin, Iran
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27
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Iwasa T, Matsuzaki T, Mayila Y, Yanagihara R, Yamamoto Y, Kawakita T, Kuwahara A, Irahara M. Oxytocin treatment reduced food intake and body fat and ameliorated obesity in ovariectomized female rats. Neuropeptides 2019; 75:49-57. [PMID: 30885500 DOI: 10.1016/j.npep.2019.03.002] [Citation(s) in RCA: 20] [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: 12/06/2018] [Revised: 02/05/2019] [Accepted: 03/10/2019] [Indexed: 02/06/2023]
Abstract
Recent studies have shown that oxytocin reduces food intake and body weight gain and promotes lipolysis in some species, including humans. Interestingly, these effects of oxytocin are more marked in obese individuals. Although the menopausal loss of ovarian function induces increased visceral adiposity and some metabolic disorders, no safe medical interventions for these conditions have been established. In this study, we evaluated the effects of oxytocin on appetite, body weight, and fat mass in ovariectomized rats. Six-day oxytocin treatment attenuated cumulative food intake and body weight gain, and reduced visceral and subcutaneous fat weight and adipocyte cell area in ovariectomized rats. Blood examinations indicated that 6-day oxytocin treatment did not alter renal or hepatic functions. Instead, it might prevent ovariectomy-induced liver damage. In addition, acute oxytocin treatment did not affect body temperature or locomotor activity. These results indicate that oxytocin might be useful for treating or preventing menopause-induced metabolic disorders, without causing any adverse effects.
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Affiliation(s)
- Takeshi Iwasa
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-Cho, Tokushima 770-8503, Japan.
| | - Toshiya Matsuzaki
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-Cho, Tokushima 770-8503, Japan
| | - Yiliyasi Mayila
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-Cho, Tokushima 770-8503, Japan
| | - Rie Yanagihara
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-Cho, Tokushima 770-8503, Japan
| | - Yuri Yamamoto
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-Cho, Tokushima 770-8503, Japan
| | - Takako Kawakita
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-Cho, Tokushima 770-8503, Japan
| | - Akira Kuwahara
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-Cho, Tokushima 770-8503, Japan
| | - Minoru Irahara
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-Cho, Tokushima 770-8503, Japan
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28
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Tang L, Yuan B, Zhang F, Cao H, Yan Z, Li J, John J, Tong N. Visceral fat is associated with elevation of serum alanine aminotransferase and gamma glutamyltransferase in middle-aged Chinese adults. Postgrad Med J 2018; 94:641-646. [PMID: 30523069 DOI: 10.1136/postgradmedj-2018-135644] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Revised: 09/17/2018] [Accepted: 11/17/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND : Elevation of hepatic enzymes is associated with insulin resistance, dyslipidaemia and obesity. However, the factors behind elevation of liver enzymes remain unclear. The aim of this study was to compare the role of abdominal visceral adipose tissue (VAT) and subcutaneous adipose tissue (SAT) in relation with serum alanine aminotransferase (ALT) and gamma glutamyltransferase (GGT) in middle-aged Chinese adults. METHODS : We performed a cross-sectional study on 959 adults aged 40-65 without hepatitis. VAT and SAT were measured at the level of L4-L5 by MRI. Pearson correlation and linear regression were performed to assess the association of VAT/SAT with serum ALT and GGT. Logistic regression was used to evaluate the association of VAT and SAT with high ALT (≥40 U/L) and high GGT (≥35 U/L). RESULTS: VAT had higher correlation coefficient r with ALT and GGT than SAT. VAT, but not SAT, was associated with ALT (males: β=0.15, p=0.01; females: β=0.17, p=0.02) and GGT (males: β=0.39, p<0.0001) in linear regression. VAT remained to be associated with GGT in males (β=0.33, p=0.0001) when was further adjusted. Logistic regression showed that VAT was associated with elevated GGT (OR=2.218, p=0.043) in males but not in females and no such association was observed for SAT. CONCLUSIONS: Increased VAT, but not SAT, was associated with elevation of hepatic enzymes including ALT and GGT. Moreover, VAT was associated with elevated GGT independent of insulin resistance and subcutaneous fat in males.
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Affiliation(s)
- Lizhi Tang
- Division of Endocrinology and Metabolism, West China Hospital of Sichuan University, Chengdu, China
| | - Bo Yuan
- Department of General Practice, West China Hospital of Sichuan University, Chengdu, China
| | - Fang Zhang
- Division of Endocrinology and Metabolism, West China Hospital of Sichuan University, Chengdu, China
| | - Hongyi Cao
- Division of Endocrinology and Metabolism, Chengdu Fifth People's Hospital, Chengdu, China
| | - Zhe Yan
- Division of Endocrinology and Metabolism, West China Hospital of Sichuan University, Chengdu, China
| | - Jing Li
- Division of Endocrinology and Metabolism, West China Hospital of Sichuan University, Chengdu, China
| | - Jobin John
- Division of Endocrinology and Metabolism, West China Hospital of Sichuan University, Chengdu, China
| | - Nanwei Tong
- Division of Endocrinology and Metabolism, West China Hospital of Sichuan University, Chengdu, China
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29
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Fitzgerald SJ, Janorkar AV, Barnes A, Maranon RO. A new approach to study the sex differences in adipose tissue. J Biomed Sci 2018; 25:89. [PMID: 30509250 PMCID: PMC6278144 DOI: 10.1186/s12929-018-0488-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 11/15/2018] [Indexed: 11/10/2022] Open
Abstract
Obesity is one of the most invaliding and preventable diseases in the United States. Growing evidence suggests that there are sex differences in obesity in human and experimental animals. However, the specific mechanisms of this disease are unknown. Consequently, there is any particular treatment according to the sex/gender at this time. During the last decade, we observe a rise in the study of adipocyte and the possible mechanisms involved in the different roles of the fat. Furthermore, the effect of sex steroids on the adipocyte is one of the fields that need elucidation. Supporting evidence suggests that sex steroids play an essential role not only in the fat distribution, but also, in its metabolism, proliferation, and function. Thus, using in vitro and in vivo studies will contribute to our fight against this critical health public problem encompassing both sexes. In the present review, we discuss some of the recent advances in the adipocytes and the effect of the sex steroids on the adipose tissue. Also, we propose a new alternative to study the role of sex steroids on adipocyte biology through human adipose-derived stem cells.
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Affiliation(s)
- Sarah Jayne Fitzgerald
- Department of Biomedical Materials Science, School of Dentistry, University of Mississippi Medical Center, Jackson, USA
| | - Amol Vijay Janorkar
- Department of Biomedical Materials Science, School of Dentistry, University of Mississippi Medical Center, Jackson, USA
| | - Allison Barnes
- Department of Cell and Molecular Biology, University of Mississippi Medical Center, 2500 North State Street, Jackson, MS, 39216, USA
| | - Rodrigo Oscar Maranon
- Department of Cell and Molecular Biology, University of Mississippi Medical Center, 2500 North State Street, Jackson, MS, 39216, USA. .,Department of Medicine/Nephrology, School of Medicine, University of Mississippi Medical Center, 2500 North State Street, Jackson, MS, 39216, USA. .,Mississippi Center for Excellence in Perinatal Research, University of Mississippi Medical Center, 2500 North State Street, Jackson, MS, 39216, USA. .,Cardio Renal Research Center, University of Mississippi Medical Center, 2500 North State Street, Jackson, MS, 39216, USA. .,The Women's Health Research Center, University of Mississippi Medical Center, 2500 North State Street, Jackson, MS, 39216, USA.
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30
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Tian Z, Li Y, Mao Z, Yu S, Wang Y, Liu X, Tu R, Zhang H, Qian X, Zhang X, Zhang L, Zhao J, Yin L, Wang C. Sex-specific relationship between visceral fat index and dyslipidemia in Chinese rural adults: The Henan Rural Cohort Study. Prev Med 2018; 116:104-111. [PMID: 30219688 DOI: 10.1016/j.ypmed.2018.09.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 07/23/2018] [Accepted: 09/11/2018] [Indexed: 12/31/2022]
Abstract
The study aimed to explore the relationship between visceral fat index (VFI) and dyslipidemia and evaluate the efficiency of VFI as a marker for identifying dyslipidemia in Chinese rural adults. The cross-sectional study recruited 35,832 aged 18-79 years eligible participants from The Henan Rural Cohort Study. VFI was measured by bioelectrical impendence methods and classified into sex-specific quartiles. Fasting blood samples were collected. Logistic regression models with VFI as a categorical variable and restricted cubic spline regression models with VFI as a continuous variable were performed to obtain odds ratios (ORs) and 95% confidence intervals (CIs). Receiver-operating characteristic (ROC) curve was conducted to evaluate the identifying performance of VFI. The age-standardized prevalence of dyslipidemia was 29.80% and 26.01% in male and female, respectively. Increasing VFI quartiles were significantly positively related to the risk of dyslipidemia and its components (Pfor trend < 0.01). The adjusted ORs (95% CIs) for per 1-SD increase in VFI were 2.11 (2.02-2.20) and 1.52 (1.47-1.56) in male and female, respectively, and dose-response relationships were observed in both genders (Pfor nonlinearity < 0.01). In addition, area under the curves (AUCs) in male (0.697) was larger than in female (0.655) (P < 0.05). VFI was significantly positively related to the risk of dyslipidemia and its components, and the risk was shown to be more prominent in male. Meanwhile, dose-response relationships were observed in both genders. Furthermore, VFI might be a relatively effective marker for identifying dyslipidemia in male, but not in female.
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Affiliation(s)
- Zhongyan Tian
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, Henan, PR China
| | - Yuqian Li
- Department of Clinical Pharmacology, School of Pharmaceutical Science, Zhengzhou University, Zhengzhou, Henan, PR China
| | - Zhenxing Mao
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, Henan, PR China
| | - Songcheng Yu
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, Henan, PR China
| | - Yanhua Wang
- Department of Encephalopathy, The First Affiliated Hospital of Henan University of Traditional Chinese Medicine, Zhengzhou, Henan, PR China
| | - Xiaotian Liu
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, Henan, PR China
| | - Runqi Tu
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, Henan, PR China
| | - Haiqing Zhang
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, Henan, PR China
| | - Xinling Qian
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, Henan, PR China
| | - Xia Zhang
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, Henan, PR China
| | - Lulu Zhang
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, Henan, PR China
| | - Jingzhi Zhao
- Department of Prevention and Health Care, Military Hospital of Henan Province, Zhengzhou, Henan, PR China
| | - Lei Yin
- Department of Prevention and Health Care, Military Hospital of Henan Province, Zhengzhou, Henan, PR China
| | - Chongjian Wang
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, Henan, PR China.
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Tchernof A, Brochu D, Maltais‐Payette I, Mansour MF, Marchand GB, Carreau A, Kapeluto J. Androgens and the Regulation of Adiposity and Body Fat Distribution in Humans. Compr Physiol 2018; 8:1253-1290. [DOI: 10.1002/cphy.c170009] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Mathew H, Castracane VD, Mantzoros C. Adipose tissue and reproductive health. Metabolism 2018; 86:18-32. [PMID: 29155136 DOI: 10.1016/j.metabol.2017.11.006] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Revised: 11/06/2017] [Accepted: 11/08/2017] [Indexed: 01/04/2023]
Abstract
The understanding of adipose tissue role has evolved from that of a depot energy storage organ to a dynamic endocrine organ. While genetics, sexual phenotype and sex steroids can impact the mass and distribution of adipose tissue, there is a counter-influence of white adipocytes on reproduction. This primarily occurs via the secretion of adipokines, the most studied of which- leptin and adiponectin- are highlighted in this article. Leptin, the "satiety hormone" primarily acts on the hypothalamus via pro-opiomelanocortin (POMC), neuropeptide Y (NPY), and agouti-related peptide (AgRP) neurons to translate acute changes in nutrition and energy expenditure, as well as chronic adipose accumulation into changes in appetite and potentially mediate insulin resistance via shared pathway and notably impacting reproductive health via influence on GnRH secreting neurons. Meanwhile, adiponectin is notable for its action in mediating insulin sensitivity, with receptors found at every level of the reproductive axis. Both have been examined in the context of physiologic and pathologic reproductive conditions. Leptin has been shown to influence puberty, pregnancy, hypothalamic amenorrhea, and lipodystrophy, and with a potential therapeutic role for both metabolic and reproductive health. Adiponectin mediates the relative state of insulin resistance in pregnancy, and has been implicated in conditions such as polycystic ovary syndrome and reproductive malignancies. There are numerous other adipokines, including resistin, visfatin, chemerin and retinol binding protein-4, which may also play roles in reproductive health and disease states. The continued examination of these and other adipokines in both normal reproduction and reproductive pathologies represents an important avenue for continued study. Here, we seek to provide a broad, yet comprehensive overview of many facets of these relationships and highlight areas of consideration for clinicians and future study.
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Affiliation(s)
- Hannah Mathew
- Section of Endocrinology, Diabetes and Weight Management, Department of Medicine, Boston Medical Center, Boston University School of Medicine, Boston, MA, USA.
| | - V Daniel Castracane
- Department of Obstetrics and Gynecology, Texas Tech University Health Sciences Center, Odessa, TX, USA
| | - Christos Mantzoros
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
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Siebert C, Bertó CG, Ferreira FS, Moreira DDS, Santos TM, Wyse AT. Vitamin D partially reverses the increase in p‐NF‐κB/p65 immunocontent and interleukin‐6 levels, but not in acetylcholinesterase activity in hippocampus of adult female ovariectomized rats. Int J Dev Neurosci 2018; 71:122-129. [DOI: 10.1016/j.ijdevneu.2018.08.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 07/19/2018] [Accepted: 08/27/2018] [Indexed: 12/22/2022] Open
Affiliation(s)
- Cassiana Siebert
- Laboratório de Neuroproteção e Doenças NeurometabólicasDepartamento de BioquímicaICBS, Universidade Federal do Rio Grande do SulRua Ramiro Barcelos, 2600‐AnexoCEP 90035‐003Porto AlegreRSBrazil
| | - Carolina Gessinger Bertó
- Laboratório de Neuroproteção e Doenças NeurometabólicasDepartamento de BioquímicaICBS, Universidade Federal do Rio Grande do SulRua Ramiro Barcelos, 2600‐AnexoCEP 90035‐003Porto AlegreRSBrazil
| | - Fernanda Silva Ferreira
- Laboratório de Neuroproteção e Doenças NeurometabólicasDepartamento de BioquímicaICBS, Universidade Federal do Rio Grande do SulRua Ramiro Barcelos, 2600‐AnexoCEP 90035‐003Porto AlegreRSBrazil
| | - Daniella de S. Moreira
- Laboratório de Neuroproteção e Doenças NeurometabólicasDepartamento de BioquímicaICBS, Universidade Federal do Rio Grande do SulRua Ramiro Barcelos, 2600‐AnexoCEP 90035‐003Porto AlegreRSBrazil
| | - Tiago Marcon Santos
- Laboratório de Neuroproteção e Doenças NeurometabólicasDepartamento de BioquímicaICBS, Universidade Federal do Rio Grande do SulRua Ramiro Barcelos, 2600‐AnexoCEP 90035‐003Porto AlegreRSBrazil
| | - Angela T.S. Wyse
- Laboratório de Neuroproteção e Doenças NeurometabólicasDepartamento de BioquímicaICBS, Universidade Federal do Rio Grande do SulRua Ramiro Barcelos, 2600‐AnexoCEP 90035‐003Porto AlegreRSBrazil
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Hwang YS, Park EJ, Choi JG, Kim HE, Park SG, Yoo SM. Relationship between Age at Menarche and Metabolic Syndrome in Premenopausal Women: Korea National Health and Nutrition Examination Survey 2013-2014. Korean J Fam Med 2018; 39:300-306. [PMID: 30056694 PMCID: PMC6166116 DOI: 10.4082/kjfm.17.0022] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Accepted: 10/12/2017] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Early menarche may be associated with increased risk of cardiovascular disease. The aim of this study was to evaluate the relationship between age at menarche and metabolic syndrome (MetS) in Korean premenopausal women. METHODS We used nationally representative data from the Korea National Health and Nutrition Examination Survey from 2013 to 2014, and 3,023 premenopausal women aged 20-55 years were our subjects. We defined early menarche as age at first menstrual period less than 12 years. Multivariable logistic regression analysis was used to evaluate the relationship between age at menarche and MetS after adjusting for current age, and socioeconomic, lifestyle, and reproductive variables. RESULTS MetS was much more common in women aged 40-55 years than in women aged 20-39 years (4.1% vs. 15.1%). Compared with women who experienced menarche at age 12-15 years, the risk of MetS in the early menarche group was not higher in either age group, after adjusting for current age, and socioeconomic, lifestyle, and reproductive variables (odds ratio [OR], 1.767; 95% confidence interval [CI], 0.718-4.351 in those aged 20-39 years; OR, 1.780; 95% CI, 0.775-4.085 in those aged 40-55 years). The risk of MetS in women with menarche at age ≥16 years was not higher than in women with menarche at age 12-15 years. CONCLUSION Early or late menarche was not associated with an increased risk of MetS in premenopausal Korean women. Even before menopause, current age has a major influence on the development of MetS.
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Affiliation(s)
- Yun-Seo Hwang
- Department of Family Medicine, Inje University Haeundae Paik Hospital, Busan, Korea
| | - Eun-Joo Park
- Department of Family Medicine, Inje University Haeundae Paik Hospital, Busan, Korea
| | - Jong-Gi Choi
- Department of Family Medicine, Inje University Haeundae Paik Hospital, Busan, Korea
| | - Hyo-Eun Kim
- Department of Family Medicine, Inje University Haeundae Paik Hospital, Busan, Korea
| | - Seung-Guk Park
- Department of Family Medicine, Inje University Haeundae Paik Hospital, Busan, Korea
| | - Sun-Mi Yoo
- Department of Family Medicine, Inje University Haeundae Paik Hospital, Busan, Korea
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Loss of ovarian function in association with a high-fat diet promotes insulin resistance and disturbs adipose tissue immune homeostasis. J Nutr Biochem 2018; 57:93-102. [DOI: 10.1016/j.jnutbio.2018.03.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 03/05/2018] [Accepted: 03/08/2018] [Indexed: 12/15/2022]
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Ferrara CT, Geyer SM, Evans-Molina C, Libman IM, Becker DJ, Wentworth JM, Moran A, Gitelman SE, Redondo MJ. The Role of Age and Excess Body Mass Index in Progression to Type 1 Diabetes in At-Risk Adults. J Clin Endocrinol Metab 2017; 102:4596-4603. [PMID: 29092051 PMCID: PMC5718698 DOI: 10.1210/jc.2017-01490] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Accepted: 10/03/2017] [Indexed: 12/16/2022]
Abstract
BACKGROUND Given the global rise in both type 1 diabetes incidence and obesity, the role of body mass index (BMI) on type 1 diabetes pathophysiology has gained great interest. Sustained excess BMI in pediatric participants of the TrialNet Pathway to Prevention (PTP) cohort increased risk for progression to type 1 diabetes, but the effects of age and obesity in adults remain largely unknown. OBJECTIVE To determine the effect of age and sustained obesity on the risk for type 1 diabetes in adult participants in the TrialNet PTP cohort (i.e., nondiabetic autoantibody-positive relatives of patients with type 1 diabetes). RESEARCH DESIGN AND METHODS Longitudinally accumulated BMI >25 kg/m2 was calculated to generate a cumulative excess BMI (ceBMI) for each participant, with ceBMI values ≥0 kg/m2 and ≥5 kg/m2 representing sustained overweight or obese status, respectively. Recursive partitioning analysis yielded sex- and age-specific thresholds for ceBMI that confer the greatest risk for type 1 diabetes progression. RESULTS In this cohort of 665 adults (age 20 to 50 years; median follow-up, 3.9 years), 49 participants developed type 1 diabetes. Age was an independent protective factor for type 1 diabetes progression (hazard ratio, 0.95; P = 0.008), with a threshold of >35 years that reduced risk for type 1 diabetes. In men age >35 years and women age <35 years, sustained obesity (ceBMI ≥5 kg/m2) increased the risk for type 1 diabetes. CONCLUSIONS Age is an important factor for type 1 diabetes progression in adults and influences the impact of elevated BMI, indicating an interplay of excess weight, age, and sex in adult type 1 diabetes pathophysiology.
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Affiliation(s)
- Christine T. Ferrara
- Department of Pediatric Endocrinology, University of California at San Francisco, San Francisco, California 94143
| | - Susan M. Geyer
- Department of Informatics and Biostatistics, University of Southern Florida, Tampa, Florida 33620
| | - Carmella Evans-Molina
- Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana 46202
| | - Ingrid M. Libman
- Department of Pediatric Endocrinology, Children’s Hospital of Pittsburgh of UPMC, Pittsburgh, Pennsylvania 15224
| | - Dorothy J. Becker
- Department of Pediatric Endocrinology, Children’s Hospital of Pittsburgh of UPMC, Pittsburgh, Pennsylvania 15224
| | - John M. Wentworth
- Department of Medicine, Royal Melbourne Hospital, Parkville, Victoria 3050, Australia
| | - Antoinette Moran
- Department of Pediatric Endocrinology, University of Minnesota, Minneapolis, Minnesota 55455
| | - Stephen E. Gitelman
- Department of Pediatric Endocrinology, University of California at San Francisco, San Francisco, California 94143
| | - Maria J. Redondo
- Section of Pediatric Endocrinology, Texas Children’s Hospital, Houston, Texas 77030
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Farland LV, Mu F, Eliassen AH, Hankinson SE, Tworoger SS, Barbieri RL, Dowsett M, Pollak MN, Missmer SA. Menstrual cycle characteristics and steroid hormone, prolactin, and growth factor levels in premenopausal women. Cancer Causes Control 2017; 28:1441-1452. [PMID: 29086892 DOI: 10.1007/s10552-017-0971-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2016] [Accepted: 10/14/2017] [Indexed: 10/18/2022]
Abstract
PURPOSE Menstrual cycle characteristics are markers of endocrine milieu. However, associations between age at menarche and adulthood sex steroid hormone levels have been inconsistent, and data on menstrual characteristics and non-sex steroid hormones are sparse. METHODS We assessed the relations of menstrual characteristics with premenopausal plasma sex steroid hormones, sex hormone binding globulin (SHBG), prolactin, and growth factors among 2,745 premenopausal women (age 32-52) from the Nurses' Health Study II. Geometric means and tests for trend were calculated using multivariable general linear models. RESULTS Early age at menarche was associated with higher premenopausal early-follicular free estradiol (percent difference < 12 vs. > 13 years = 11%), early-follicular estrone (7%), luteal estrone (7%), and free testosterone (8%) (all p trend < 0.05). Short menstrual cycle length at age 18-22 was associated with higher early-follicular total (< 26 vs. > 39 days = 18%) and free estradiol (16%), early-follicular estrone (9%), SHBG (7%), lower luteal free estradiol (- 14%), total (- 6%), and free testosterone (- 15%) (all p trend < 0.05). Short adult menstrual length was associated with higher early-follicular total estradiol (< 26 vs. > 31 days = 14%), SHBG (10%), lower luteal estrone (- 8%), progesterone (- 9%), total (- 11%) and free testosterone (- 25%), and androstenedione (- 14%) (all p trend < 0.05). Irregularity of menses at 18-22 was associated with lower early-follicular total (irregular vs. very regular = - 14%) and free estradiol (- 14%), and early-follicular estrone (- 8%) (All p trend < 0.05). Irregularity of adult menstrual cycle was associated with lower luteal total estradiol (irregular vs. very regular = - 8%), SHBG (- 3%), higher total (8%), and free testosterone (11%) (all p trend < 0.05). CONCLUSIONS Early-life and adulthood menstrual characteristics are moderately associated with mid-to-late reproductive year's hormone concentrations. These relations of menstrual characteristics with endogenous hormone levels could partially account for associations between menstrual characteristics and reproductive cancers or other chronic diseases.
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Affiliation(s)
- Leslie V Farland
- Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA, USA. .,Department of Obstetrics, Gynecology, and Reproductive Biology, Brigham and Women's Hospital and Harvard Medical School, 221 Longwood Ave, Boston, MA, 02115, USA.
| | - Fan Mu
- Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - A Heather Eliassen
- Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA, USA.,Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Susan E Hankinson
- Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA, USA.,Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA.,Department of Biostatistics and Epidemiology, School of Public Health and Health Sciences, University of Massachusetts, Amherst, MA, USA
| | - Shelley S Tworoger
- Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA, USA.,Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA.,Department of Cancer Epidemiology, Moffitt Cancer Center, Tampa, FL, USA
| | - Robert L Barbieri
- Department of Obstetrics, Gynecology, and Reproductive Biology, Brigham and Women's Hospital and Harvard Medical School, 221 Longwood Ave, Boston, MA, 02115, USA
| | - Mitch Dowsett
- Academic Department of Biochemistry, The Royal Marsden Hospital, London, UK
| | - Michael N Pollak
- Department of Oncology, McGill University and Lady Davis Research Institute, Montreal, QC, Canada
| | - Stacey A Missmer
- Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA, USA.,Department of Obstetrics, Gynecology, and Reproductive Biology, Brigham and Women's Hospital and Harvard Medical School, 221 Longwood Ave, Boston, MA, 02115, USA.,Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA.,Division of Adolescent Medicine, Boston Children's Hospital and Harvard Medical School, Boston, MA, USA
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Dong R, Zhou T, Chen J, Zhang M, Zhang H, Wu M, Li S, Zhang L, Chen B. Gender- and Age-Specific Relationships Between Phthalate Exposures and Obesity in Shanghai Adults. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2017; 73:431-441. [PMID: 28840287 DOI: 10.1007/s00244-017-0441-6] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Accepted: 07/28/2017] [Indexed: 05/27/2023]
Abstract
Phthalate exposure has been reported to be associated with obesity (measured by body mass index [BMI]) and central obesity (measured by waist circumference [WC]). Yet, reported associations and the potential gender and age differences are inconsistent. We conducted a cross-sectional study involving 2330 participants in the fall of 2012. Urinary metabolites of ten phthalates were measured. Height, body weight, and waist circumference (WC) were measured using standardized methods. We performed logistic regression analyses to estimate the association between each urine phthalate metabolite (categorized into quartiles) and obesity and central obesity and conducted an additional, stratified analysis to explore the gender and age differences. In the overall study population, higher urinary levels of MMP, MEHHP, and MECPP were associated with increased ratios of central obesity. When stratifying by gender and central obesity, higher urinary levels of MMP, MEHHP, and MEOHP were associated with increased odds of central obesity in females, whereas MBzP was significantly associated inversely with central obesity in females. In males, it showed no significant P value for trend (P trend). When stratifying by age in females, higher urinary levels of MEHP, MEOHP, MEHHP, and MECPP were associated with increased odds of central obesity in women aged ≤45 years. In females aged >45 years, it showed no significant P trend. In conclusion, we found that association between phthalates and central obesity was stronger than between phthalates and obesity; association between phthalates and central obesity was stronger in females than in males and was stronger in younger females (aged ≤45 years) than in older females (aged >45 years).
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Affiliation(s)
- Ruihua Dong
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai, 200032, China
| | - Tong Zhou
- Gynecology and Obstetrics, Shanghai Fifth Hospital, Fudan University, Shanghai, 200240, China
| | - Jingsi Chen
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai, 200032, China
| | - Meiru Zhang
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai, 200032, China
| | - Han Zhang
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai, 200032, China
| | - Min Wu
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai, 200032, China
| | - Shuguang Li
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai, 200032, China
| | - Liwen Zhang
- Gynecology and Obstetrics, Shanghai Fifth Hospital, Fudan University, Shanghai, 200240, China.
| | - Bo Chen
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai, 200032, China.
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Meng X, Li S, Duan W, Sun Y, Jia C. Secular Trend of Age at Menarche in Chinese Adolescents Born From 1973 to 2004. Pediatrics 2017; 140:peds.2017-0085. [PMID: 28716824 PMCID: PMC5527668 DOI: 10.1542/peds.2017-0085] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/12/2017] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVES To estimate secular trend and factors influencing the age at menarche for Chinese girls born from 1973 to 2004. METHODS Data were collected from the China Health and Nutrition Survey, a prospective open cohort and an ongoing nationwide health and nutrition survey, consisting of 3199 apparently healthy Chinese girls aged 6 to 18 years at entry from 1991 to 2011. Average age at menarche and its 95% confidence interval were estimated by weighted means of Kaplan-Meier survival analysis. Cox proportional hazard models were applied to identify the independent predictive factors of age at menarche. RESULTS The age at menarche declined from 14.25 in Chinese girls born before 1976 to 12.60 in girls born after 2000, with an estimated decline of 0.51 years per decade (P < .001). The downward trend of age at menarche for rural girls was greater than for urban girls (0.62 vs 0.35 years per decade; P < .001). Girls living in urban areas, living in central areas, with high BMI, and with high-energy diets had a high risk of early menarche, whereas girls living on the east coast who had high-carbohydrate diets had a low risk of early menarche. CONCLUSIONS The authors of this study found a continuous downward secular trend of age at menarche for Chinese girls in both urban and rural areas born from 1973 to 2004. Among all variables, urban residency, BMI, and energy intake are negatively associated with age at menarche, whereas carbohydrate intake is positively associated with age at menarche.
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Affiliation(s)
| | | | | | | | - Chongqi Jia
- Department of Epidemiology, Shandong University, Jinan, Shandong, People's Republic of China
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Fujitani M, Kishida T, Shimizu E, Ishikawa J. Difructose anhydride III decreases body fat as a low-energy substitute or by decreasing energy intake in non-ovariectomized and ovariectomized female rats. Biosci Biotechnol Biochem 2017; 81:1425-1432. [DOI: 10.1080/09168451.2017.1314756] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Abstract
We evaluated the effects of difructose anhydride III (DFAIII) on body weights of ovariectomized rats, which are a good model for obesity by estrogen deficiency-induced overeating. Female rats (10 weeks old) were subjected to ovariectomy or sham operation and then fed with or without a diet containing 3% or 6% DFAIII for 33 days or pair-fed control diet during the same period. Rats fed DFAIII showed significantly decreased food intake, energy intake, body weight gain, body energy accumulation, and fat tissue weight than control group, regardless of ovariectomy. DFAIII may decrease body fat dependent of reduced food/energy intake. Compared with the respective pair feeding groups, rats fed DFAIII showed significantly decreased body energy and fat tissue weight, regardless of ovariectomy, suggesting its potential as a low-energy substitute for high-energy sweeteners. The low energy of DFAIII may contribute to decreased body fat, which may not be dependent on obesity.
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Affiliation(s)
- Mina Fujitani
- Department of Biological Resources, Faculty of Agriculture, Ehime University, Matsuyama, Japan
| | - Taro Kishida
- Department of Biological Resources, Faculty of Agriculture, Ehime University, Matsuyama, Japan
| | - Emi Shimizu
- Department of Biological Resources, Faculty of Agriculture, Ehime University, Matsuyama, Japan
| | - Junji Ishikawa
- Central Research and Development Laboratory, FANCL Co. Ltd., Yokohama, Japan
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Minichino A, Ando' A, Francesconi M, Salatino A, Delle Chiaie R, Cadenhead K. Investigating the link between drug-naive first episode psychoses (FEPs), weight gain abnormalities and brain structural damages: Relevance and implications for therapy. Prog Neuropsychopharmacol Biol Psychiatry 2017; 77:9-22. [PMID: 28363765 DOI: 10.1016/j.pnpbp.2017.03.020] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Revised: 03/08/2017] [Accepted: 03/20/2017] [Indexed: 02/08/2023]
Abstract
Evidence suggests that obesity and overweight may be associated with severe brain structural abnormalities and poor cognitive and functional outcomes in the general population. Despite these observations and the high prevalence of weight gain abnormalities in patients with psychosis spectrum disorders (PSDs), no studies have investigated the impact that these metabolic disturbances may have on brain structures and development in the earliest stages of PSDs. In the present review we shed light on the association between weight gain and brain structural abnormalities that may affect the course of illness in drug-naïve FEPs. Given the lack of studies directly investigating this issue, we firstly identified and critically evaluated the literature assessing weight gain abnormalities and gray or white matter (GM, WM) volumes (either globally or in specific regions of interest) in otherwise healthy obese/overweight adolescents and young adults. We then compared the results of this systematic review with those of two recent meta-analysis investigating GM and WM abnormalities in drug-naïve FEPs. Weight gain in otherwise healthy subjects was consistently associated with frontal and temporal GM atrophy and with reduced integrity of WM in the corpus callosum. Of relevance, all these brain regions are affected in drug-naïve FEPs, and their integrity is associated with clinical, cognitive and functional outcomes. The underlying mechanisms that may explain the association between weight gain, adiposity, and brain damage in both healthy subjects and drug-naïve FEPs are widely discussed. On the basis of this knowledge, we tried: a) to deduce an integrative model for the development of obesity in psychosis spectrum disorders; b) to identify the key vulnerability factors underlying the association between weight gain and psychosis; c) to provide information on new potential targets of intervention.
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Affiliation(s)
- Amedeo Minichino
- Department of Neurology and Psychiatry, Sapienza University of Rome, Italy; Department of Psychiatry, UCSD, La Jolla, CA, United States.
| | - Agata Ando'
- Department of Psychology, University of Turin, Italy
| | - Marta Francesconi
- Department of Neurology and Psychiatry, Sapienza University of Rome, Italy; Department of Psychiatry, UCSD, La Jolla, CA, United States
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Ahmed K, LaPierre MP, Gasser E, Denzler R, Yang Y, Rülicke T, Kero J, Latreille M, Stoffel M. Loss of microRNA-7a2 induces hypogonadotropic hypogonadism and infertility. J Clin Invest 2017; 127:1061-1074. [PMID: 28218624 DOI: 10.1172/jci90031] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Accepted: 12/15/2016] [Indexed: 12/21/2022] Open
Abstract
MicroRNAs (miRNAs) are negative modulators of gene expression that fine-tune numerous biological processes. miRNA loss-of-function rarely results in highly penetrant phenotypes, but rather, influences cellular responses to physiologic and pathophysiologic stresses. Here, we have reported that a single member of the evolutionarily conserved miR-7 family, miR-7a2, is essential for normal pituitary development and hypothalamic-pituitary-gonadal (HPG) function in adulthood. Genetic deletion of mir-7a2 causes infertility, with low levels of gonadotropic and sex steroid hormones, small testes or ovaries, impaired spermatogenesis, and lack of ovulation in male and female mice, respectively. We found that miR-7a2 is highly expressed in the pituitary, where it suppresses golgi glycoprotein 1 (GLG1) expression and downstream bone morphogenetic protein 4 (BMP4) signaling and also reduces expression of the prostaglandin F2a receptor negative regulator (PTGFRN), an inhibitor of prostaglandin signaling and follicle-stimulating hormone (FSH) and luteinizing hormone (LH) secretion. Our results reveal that miR-7a2 critically regulates sexual maturation and reproductive function by interconnecting miR-7 genomic circuits that regulate FSH and LH synthesis and secretion through their effects on pituitary prostaglandin and BMP4 signaling.
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Yoo JH. Effects of early menarche on physical and psychosocial health problems in adolescent girls and adult women. KOREAN JOURNAL OF PEDIATRICS 2016; 59:355-361. [PMID: 27721839 PMCID: PMC5052133 DOI: 10.3345/kjp.2016.59.9.355] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Revised: 12/14/2015] [Accepted: 12/29/2015] [Indexed: 12/13/2022]
Abstract
The menarcheal age of Korean women has been rapidly decreasing for the last 50 years, and the average menarcheal age of women born in the 1990s is approaching 12.6 years. In addition, interest in early puberty has been increasing recently owing to the rapid increase in precocious puberty. Generally, out of concern for short stature and early menarche, idiopathic central precocious puberty in female adolescents is treated with gonadotropin-releasing hormone analogs. Studies to date have described the association between early menarche and psychosocial problems such as delinquency and risky sexual behavior, as well as physical health problems such as obesity, diabetes, cardiovascular diseases, and breast cancer throughout the lifespan of women. However, the pathophysiological mechanism underlying this association has not been clarified thus far. In this article, we review and discuss the existing literature to describe the current understanding of the effects of early menarche on the physical and psychosocial health of adolescent girls and adult women.
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Affiliation(s)
- Jae-Ho Yoo
- Department of Pediatrics, Dong-A University College of Medicine, Busan, Korea
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da Silva Lara LA, Dos Santos Lima ML, Romão GS, Ferriani RA, de Albuquerque Salles Navarro PA. Factors Related to Coital Frequency of Women in Their Thirties. JOURNAL OF SEX & MARITAL THERAPY 2016; 42:403-412. [PMID: 26036273 DOI: 10.1080/0092623x.2015.1053024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
This cross-sectional study aimed to identify factors related to coital frequency (CF) among 254 women in their 30s using a semistructured interview to collect sociodemographic, anthropometric, reproductive, clinical, and relationship data. CF was characterized as (a) never, (b) rarely (≤1 times/month), (c) occasionally (≤1 times /week), (d) regularly (2-3 times/week), or (e) frequently (>3 times/week). The mean age was 34.38 ± 0.43 years, mean body mass index (BMI) was 27.86 ± 6.52 kg, mean family income was US$1,044.18 ± 796.19, mean number of children was 1.71 ± 0.89, and mean relationship duration was 8.87 ± 5.11 years. Eighty-seven women (35.2%) were taking hormonal contraceptives, 143 (98.0%) were employed, 239 (96.48%) had a secondary or higher education, and 9 (3.62%) had primary schooling. CF was classified as >3 times/week in 22 (8.66%), 2-3 times/week for 98 (38.58%), ≤1 times/week in 40 (15.75%), ≤1 times/month in 14 (5.51%), and never in 5 (1.97%). Women who reported having coitus >3 times/week a week had significantly higher body mass index (BMI; 32.72 ± 7.42 kg/m(2)) than those who had coitus 2-3 times/week (28.45 ± 6.76 kg/m(2)) and ≤1 times /week (26.81 ± 5.39 kg/m(2)) (p < 0.01 for both comparisons). Thus, coital frequency varies in women in their 30s. Obese women had a higher CF than normal-weight and overweight women.
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Affiliation(s)
- Lúcia Alves da Silva Lara
- a Sexual Medicine Service, Sector of Human Reproduction, Department of Gynecology and Obstetrics, Ribeirão Preto Medical School, University of São Paulo , Ribeirão Preto, São Paulo , Brazil
| | - Maria Lucia Dos Santos Lima
- a Sexual Medicine Service, Sector of Human Reproduction, Department of Gynecology and Obstetrics, Ribeirão Preto Medical School, University of São Paulo , Ribeirão Preto, São Paulo , Brazil
| | - Gustavo Salata Romão
- a Sexual Medicine Service, Sector of Human Reproduction, Department of Gynecology and Obstetrics, Ribeirão Preto Medical School, University of São Paulo , Ribeirão Preto, São Paulo , Brazil
| | - Rui Alberto Ferriani
- b Sexual Medicine Service, Sector of Human Reproduction, Department of Gynecology and Obstetrics, and INCt/CNPq Hormones, Protection and Risks for Women's Health, Ribeirão Preto Medical School, University of São Paulo , Ribeirão Preto, São Paulo , Brazil
| | - Paula Andrea de Albuquerque Salles Navarro
- b Sexual Medicine Service, Sector of Human Reproduction, Department of Gynecology and Obstetrics, and INCt/CNPq Hormones, Protection and Risks for Women's Health, Ribeirão Preto Medical School, University of São Paulo , Ribeirão Preto, São Paulo , Brazil
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Kong Z, Fan X, Sun S, Song L, Shi Q, Nie J. Comparison of High-Intensity Interval Training and Moderate-to-Vigorous Continuous Training for Cardiometabolic Health and Exercise Enjoyment in Obese Young Women: A Randomized Controlled Trial. PLoS One 2016; 11:e0158589. [PMID: 27368057 PMCID: PMC4930190 DOI: 10.1371/journal.pone.0158589] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Accepted: 06/18/2016] [Indexed: 12/18/2022] Open
Abstract
Objective The aim of this study was to compare the effects of 5-week high-intensity interval training (HIIT) and moderate-to-vigorous intensity continuous training (MVCT) on cardiometabolic health outcomes and enjoyment of exercise in obese young women. Methods A randomized controlled experiment was conducted that involved thirty-one obese females (age range of 18–30) randomly assigned to either HIIT or MVCT five-week training programs. Participants in HIIT condition performed 20 min of repeated 8 s cycling interspersed with 12 s rest intervals, and those in MVCT condition cycled continuously for 40 min at 60–80% of peak oxygen consumption ( V˙O2peak), both for four days in a week. Outcomes such as V˙O2peak, body composition estimated by bioimpedance analysis, blood lipids, and serum sexual hormones were measured at pre-and post-training. The scores of Physical Activity Enjoyment Scale (PAES) were collected during the intervention. Results After training, V˙O2peak increased significantly for both training programs (9.1% in HIIT and 10.3% in MVCT) (p = 0.010, η2 = 0.41). Although MVCT group had a significant reduction in total body weight (TBW, −1.8%, p = 0.034), fat mass (FM, - 4.7%, p = 0.002) and percentage body fat (PBF, −2.9%, p = 0.016), there were no significant between-group differences in the change of the pre- and post-measures of these variables. The HIIT group had a higher score on PAES than the MVCT group during the intervention. For both conditions, exercise training led to a decline in resting testosterone and estradiol levels, but had no significant effect on blood lipids. Conclusion Both HIIT and MVCT are effective in improving cardiorespiratory fitness and in reducing sexual hormones in obese young women; however, HIIT is a more enjoyable and time-efficient strategy. The mild-HIIT protocol seems to be useful for at least maintaining the body weight among sedentary individuals.
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Affiliation(s)
- Zhaowei Kong
- Faculty of Education, University of Macau, Macao, China
| | - Xitao Fan
- Faculty of Education, University of Macau, Macao, China
| | - Shengyan Sun
- Institute of Physical Education, Huzhou University, Huzhou, Zhejiang Province, China
| | - Lili Song
- Faculty of Education, University of Macau, Macao, China
| | - Qingde Shi
- School of Physical Education and Sports, Macao Polytechnic Institute, Macao, China
| | - Jinlei Nie
- School of Physical Education and Sports, Macao Polytechnic Institute, Macao, China
- * E-mail:
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Female sex and obesity increase photophobic behavior in mice. Neuroscience 2016; 331:99-108. [PMID: 27328418 DOI: 10.1016/j.neuroscience.2016.06.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 05/31/2016] [Accepted: 06/12/2016] [Indexed: 12/16/2022]
Abstract
Migraine affects predominantly women. Furthermore, epidemiological studies suggest that obesity is a risk factor for migraine and this association is influenced by sex. However, the biological basis for this bias is unclear. To address this issue, we assessed light avoidant behavior, a surrogate of photophobia, in female C57BL/6J mice fed regular diet (RD) or high-fat diet (HFD, 60% kcal from fat). We first assessed sex differences in basal photophobia in 20-25-week-old mice and found that both obese and lean females spent significantly less time in light than their male counterparts. Next, we assessed photophobia evoked by trigeminal stimulation with intradermal capsaicin. Females at 20-25weeks of age did not display capsaicin-evoked photophobic behavior unless they had diet-induced obesity. When we tested 8-11-week-old females to determine if the diet alone could be responsible for this effect, we found that both HFD and RD 8-11-week-old females exhibit capsaicin-evoked photophobic behavior. This is in contrast to what we have previously shown in males and indicates a sex difference in the photophobic behavior of mice. Comparison of 20-25-week-old RD mice with 8-11-week-old RD mice suggests that age or age-related weight gain may contribute to capsaicin-evoked photophobic behavior in males, but not in females. These findings suggest that obesity exacerbates photophobia in both sexes, but additional work is needed to understand the sex- and age-specific mechanisms that may contribute to photophobia and trigeminal pain.
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European Obesity Summit (EOS) - Joint Congress of EASOand IFSO-EC, Gothenburg, Sweden, June 1 - 4, 2016: Abstracts. Obes Facts 2016; 9 Suppl 1:1-376. [PMID: 27238363 PMCID: PMC5672850 DOI: 10.1159/000446744] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
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Chen L, Cook LS, Tang MTC, Porter PL, Hill DA, Wiggins CL, Li CI. Body mass index and risk of luminal, HER2-overexpressing, and triple negative breast cancer. Breast Cancer Res Treat 2016; 157:545-54. [PMID: 27220749 DOI: 10.1007/s10549-016-3825-9] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Accepted: 05/05/2016] [Indexed: 12/27/2022]
Abstract
Triple negative (TN, tumors that do not express estrogen receptor (ER), progesterone receptor (PR), or human epidermal growth factor receptor 2 (HER2)) and HER2-overexpressing (H2E, ER-/HER2+) tumors are two particularly aggressive subtypes of breast cancer. There is a lack of knowledge regarding the etiologies of these cancers and in particular how anthropometric factors are related to risk. We conducted a population-based case-case study consisting of 2659 women aged 20-69 years diagnosed with invasive breast cancer from 2004 to 2012. Four case groups defined based on joint ER/PR/HER2 status were included: TN, H2E, luminal A (ER+/HER2-), and luminal B (ER+/HER2+). Polytomous logistic regression was used to estimate odds ratios (ORs) and associated 95 % confidence intervals (CIs) where luminal A patients served as the reference group. Obese premenopausal women [body mass index (BMI) ≥30 kg/m(2)] had an 82 % (95 % CI 1.32-2.51) increased risk of TN breast cancer compared to women whose BMI <25 kg/m(2), and those in the highest weight quartile (quartiles were categorized based on the distribution among luminal A patients) had a 79 % (95 % CI 1.23-2.64) increased risk of TN disease compared to those in the lowest quartile. Among postmenopausal women obesity was associated with reduced risks of both TN (OR = 0.74, 95 % CI 0.54-1.00) and H2E (OR = 0.47, 95 % CI 0.32-0.69) cancers. Our results suggest obesity has divergent impacts on risk of aggressive subtypes of breast cancer in premenopausal versus postmenopausal women, which may contribute to the higher incidence rates of TN cancers observed among younger African American and Hispanic women.
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Affiliation(s)
- Lu Chen
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave N, Mail Stop M4-C308, P.O. Box 19024, Seattle, WA, 98109, USA.
| | - Linda S Cook
- Department of Internal Medicine, University of New Mexico and the University of New Mexico Comprehensive Cancer Center, Albuquerque, NM, USA
| | - Mei-Tzu C Tang
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave N, Mail Stop M4-C308, P.O. Box 19024, Seattle, WA, 98109, USA
| | - Peggy L Porter
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave N, Mail Stop M4-C308, P.O. Box 19024, Seattle, WA, 98109, USA.,Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Deirdre A Hill
- Department of Internal Medicine, University of New Mexico and the University of New Mexico Comprehensive Cancer Center, Albuquerque, NM, USA
| | - Charles L Wiggins
- Department of Internal Medicine, University of New Mexico and the University of New Mexico Comprehensive Cancer Center, Albuquerque, NM, USA
| | - Christopher I Li
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave N, Mail Stop M4-C308, P.O. Box 19024, Seattle, WA, 98109, USA
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Kim Y, Jeong SM, Yoo B, Oh B, Kang HC. Associations of smoking with overall obesity, and central obesity: a cross-sectional study from the Korea National Health and Nutrition Examination Survey (2010-2013). Epidemiol Health 2016; 38:e2016020. [PMID: 27221478 PMCID: PMC4967909 DOI: 10.4178/epih.e2016020] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Accepted: 05/19/2016] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVES The association between smoking and obesity is a significant public health concern. Both are preventable risk factors of cardiovascular disease and a range of other conditions. However, despite numerous previous studies, no consensus has emerged regarding the effect of smoking on obesity. We therefore carried out a novel study evaluating the relationship between smoking and obesity. METHODS A total of 5,254 subjects aged 19 years or older drawn from the 2010-2013 Korea National Health and Nutrition Examination Survey were included in this cross-sectional study. Smoking was examined both in terms of smoking status and the quantity of cigarettes smoked by current smokers. Multiple logistic regression analysis was used to assess the association between smoking and obesity. Overall obesity was defined as a body mass index (BMI) ≥25 kg/m(2), and central obesity was defined as a waist circumference ≥90 cm for males and ≥85 cm for females. We adjusted for the possible confounding effects of age, sex, physical activity, alcohol consumption, and the presence of hypertension or diabetes. RESULTS A statistically significant difference in central obesity according to smoking status was identified. Current smokers were more likely to be centrally obese than never-smokers (adjusted odds ratio,1.30; 95% confidence interval, 1.02 to 1.67). However, no significant association was found between smoking and obesity defined by BMI. Moreover, among current smokers, no statistically significant association was found between the daily amount of smoking and obesity or central obesity. CONCLUSIONS Smoking was positively associated with central obesity. Current smokers should be acquainted that they may be more prone to central obesity.
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Affiliation(s)
- Yeonjung Kim
- Department of Family Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Seong Min Jeong
- Department of Family Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Bora Yoo
- Department of Family Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Bitna Oh
- Department of Family Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Hee-Cheol Kang
- Department of Family Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
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Usset JL, Raghavan R, Tyrer JP, McGuire V, Sieh W, Webb P, Chang-Claude J, Rudolph A, Anton-Culver H, Berchuck A, Brinton L, Cunningham JM, DeFazio A, Doherty JA, Edwards RP, Gayther SA, Gentry-Maharaj A, Goodman MT, Høgdall E, Jensen A, Johnatty SE, Kiemeney LA, Kjaer SK, Larson MC, Lurie G, Massuger L, Menon U, Modugno F, Moysich KB, Ness RB, Pike MC, Ramus SJ, Rossing MA, Rothstein J, Song H, Thompson PJ, van den Berg DJ, Vierkant RA, Wang-Gohrke S, Wentzensen N, Whittemore AS, Wilkens LR, Wu AH, Yang H, Pearce CL, Schildkraut JM, Pharoah P, Goode EL, Fridley BL. Assessment of Multifactor Gene-Environment Interactions and Ovarian Cancer Risk: Candidate Genes, Obesity, and Hormone-Related Risk Factors. Cancer Epidemiol Biomarkers Prev 2016; 25:780-90. [PMID: 26976855 PMCID: PMC4873330 DOI: 10.1158/1055-9965.epi-15-1039] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Accepted: 01/21/2016] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Many epithelial ovarian cancer (EOC) risk factors relate to hormone exposure and elevated estrogen levels are associated with obesity in postmenopausal women. Therefore, we hypothesized that gene-environment interactions related to hormone-related risk factors could differ between obese and non-obese women. METHODS We considered interactions between 11,441 SNPs within 80 candidate genes related to hormone biosynthesis and metabolism and insulin-like growth factors with six hormone-related factors (oral contraceptive use, parity, endometriosis, tubal ligation, hormone replacement therapy, and estrogen use) and assessed whether these interactions differed between obese and non-obese women. Interactions were assessed using logistic regression models and data from 14 case-control studies (6,247 cases; 10,379 controls). Histotype-specific analyses were also completed. RESULTS SNPs in the following candidate genes showed notable interaction: IGF1R (rs41497346, estrogen plus progesterone hormone therapy, histology = all, P = 4.9 × 10(-6)) and ESR1 (rs12661437, endometriosis, histology = all, P = 1.5 × 10(-5)). The most notable obesity-gene-hormone risk factor interaction was within INSR (rs113759408, parity, histology = endometrioid, P = 8.8 × 10(-6)). CONCLUSIONS We have demonstrated the feasibility of assessing multifactor interactions in large genetic epidemiology studies. Follow-up studies are necessary to assess the robustness of our findings for ESR1, CYP11A1, IGF1R, CYP11B1, INSR, and IGFBP2 Future work is needed to develop powerful statistical methods able to detect these complex interactions. IMPACT Assessment of multifactor interaction is feasible, and, here, suggests that the relationship between genetic variants within candidate genes and hormone-related risk factors may vary EOC susceptibility. Cancer Epidemiol Biomarkers Prev; 25(5); 780-90. ©2016 AACR.
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Affiliation(s)
- Joseph L Usset
- Department of Biostatistics, University of Kansas Medical Center, Kansas City, Kansas
| | - Rama Raghavan
- Department of Biostatistics, University of Kansas Medical Center, Kansas City, Kansas
| | - Jonathan P Tyrer
- Department of Oncology, University of Cambridge Strangeways Research Laboratory, Cambridge, United Kingdom
| | - Valerie McGuire
- Department of Health Research and Policy - Epidemiology, Stanford University School of Medicine, Stanford, California
| | - Weiva Sieh
- Department of Health Research and Policy - Epidemiology, Stanford University School of Medicine, Stanford, California
| | - Penelope Webb
- Population Health Department, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Jenny Chang-Claude
- Division of Cancer Epidemiology, German Cancer Research Center, Heidelberg, Germany
| | - Anja Rudolph
- Division of Cancer Epidemiology, German Cancer Research Center, Heidelberg, Germany
| | - Hoda Anton-Culver
- Department of Epidemiology, University of California Irvine, Irvine, California
| | - Andrew Berchuck
- Department of Obstetrics and Gynecology, Duke University Medical Center, Durham, North Carolina
| | - Louise Brinton
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland
| | - Julie M Cunningham
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota
| | - Anna DeFazio
- Discipline of Obstetrics, Gynecology, and Neonatology, University of Sydney, Westmead Institute for Cancer Research, Westmead Millennium Institute, Westmead, New South Wales, Australia
| | - Jennifer A Doherty
- Department of Epidemiology, Geisel School of Medicine, Hanover, New Hampshire
| | - Robert P Edwards
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Simon A Gayther
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, California
| | | | - Marc T Goodman
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, California
| | - Estrid Høgdall
- Department of Virus, Lifestyle, and Genes, Danish Cancer Society Research Center, Copenhagen, Denmark. Department of Pathology, Herlev Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Allan Jensen
- Department of Virus, Lifestyle, and Genes, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Sharon E Johnatty
- Division of Genetics and Public Health, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Lambertus A Kiemeney
- Department of Health Evidence, Radboud University Medical Centre, Nijmegen, the Netherlands
| | - Susanne K Kjaer
- Department of Gynecology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Melissa C Larson
- Department of Health Science Research, Mayo Clinic, Rochester, Minnesota
| | - Galina Lurie
- Cancer Epidemiology Program, University of Hawaii Cancer Center, Honolulu, Hawaii
| | - Leon Massuger
- Department of Obstetrics & Gynecology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Usha Menon
- Women's Cancer, Institute for Women's Health, University College London, London, United Kingdom
| | - Francesmary Modugno
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania. Department of Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Kirsten B Moysich
- Department of Cancer Prevention and Control, Roswell Park Cancer Institute, Buffalo, New York
| | - Roberta B Ness
- School of Public Health, The University of Texas, Houston, Texas
| | - Malcolm C Pike
- Department of Epidemiology and Biostatistics, Memorial Sloan-Kettering Cancer Center, New York, New York
| | - Susan J Ramus
- Department of Preventive Medicine, University of Southern California, Los Angeles, California
| | - Mary Anne Rossing
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington. Department of Epidemiology, University of Washington, Seattle, Washington
| | - Joseph Rothstein
- Department of Health Research and Policy - Epidemiology, Stanford University School of Medicine, Stanford, California
| | - Honglin Song
- Department of Oncology, University of Cambridge Strangeways Research Laboratory, Cambridge, United Kingdom
| | - Pamela J Thompson
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, California
| | - David J van den Berg
- Department of Preventive Medicine, University of Southern California, Los Angeles, California
| | - Robert A Vierkant
- Department of Health Science Research, Mayo Clinic, Rochester, Minnesota
| | - Shan Wang-Gohrke
- Department of Obstetrics and Gynecology, University of Ulm, Ulm, Germany
| | - Nicolas Wentzensen
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland
| | - Alice S Whittemore
- Department of Health Research and Policy - Epidemiology, Stanford University School of Medicine, Stanford, California
| | - Lynne R Wilkens
- Cancer Epidemiology Program, University of Hawaii Cancer Center, Honolulu, Hawaii
| | - Anna H Wu
- Department of Preventive Medicine, University of Southern California, Los Angeles, California
| | - Hannah Yang
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland
| | - Celeste Leigh Pearce
- Department of Preventive Medicine, University of Southern California, Los Angeles, California. Department of Epidemiology, University of Michigan, Ann Arbor, Michigan
| | - Joellen M Schildkraut
- Department of Public Health Sciences, University of Virginia, Charlottesville, Virginia
| | - Paul Pharoah
- Department of Oncology, University of Cambridge Strangeways Research Laboratory, Cambridge, United Kingdom. Department of Public Health and Primary Care, University of Cambridge Strangeways Research Laboratory, Cambridge, United Kingdom
| | - Ellen L Goode
- Department of Health Science Research, Mayo Clinic, Rochester, Minnesota
| | - Brooke L Fridley
- Department of Biostatistics, University of Kansas Medical Center, Kansas City, Kansas.
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