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Porchia LM, Ochoa-Precoma R, Reyes-Albarracín Y, Gonzalez-Mejia ME, López-Bayghen E. Age-related differences in fluctuations in insulin resistance evaluated with HOMA-IR and triglyceride and glucose-based indices during the menstrual cycle, as determined using the NHANES cross-sectional dataset. Maturitas 2024; 188:108085. [PMID: 39102760 DOI: 10.1016/j.maturitas.2024.108085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 07/10/2024] [Accepted: 07/29/2024] [Indexed: 08/07/2024]
Abstract
OBJECTIVES To determine how age affects insulin resistance during the menstrual cycle and insulin resistance-associated indices: the Triglyceride-glucose and Triglyceride-glucose-BMI indexes. METHODS This prospective observational study used fasting plasma glucose, fasting insulin, triglycerides, body mass index (BMI), and days since the start of the menstrual period collected from the NHANES dataset (1999-2006). Insulin resistance was determined using the Homeostasis Model Assessment of Insulin Resistance (HOMA-IR). The participants were categorized as young (16-34 years) or older (>35 years). Rhythmicity during the menstrual cycle was analyzed using the Cosinor and Cosinor2 packages for R. MAIN OUTCOME MEASURES Cosine fit curves for insulin resistance during the menstrual cycle and age-associated effects on rhythmicity. RESULTS Using 1256 participants, rhythmicity was observed for fasting insulin and HOMA-IR (p < 0.05) but not for fasting plasma glucose, the Triglyceride-glucose index, or the Triglyceride-glucose-BMI index. Significant amplitudes for fasting insulin and HOMA-IR were observed when age was considered. Acrophases for fasting insulin and HOMA-IR were significant only for the younger group, and the differences between these groups were significant, suggesting that the changes in scores for insulin resistance for the younger and older groups occur at different times of their menstrual cycle. CONCLUSIONS Insulin resistance does fluctuate during the menstrual cycle, and it is at a maximum at different times for younger and older women. Since these results are unadjusted, this study is preliminary and further investigation is required.
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Affiliation(s)
- Leonardo M Porchia
- Instituto de Infertilidad y Genética México SC, Ingenes, Carretera México-Toluca 5420 Officina 602, Colonia El Yaqui, 05320 México City, Mexico
| | - Renata Ochoa-Precoma
- Departamento de Genética, Facultad de Medicina, Benemérita Universidad Autónoma de Puebla, Calle 13 Sur 2702, Colonia Los Volcanes, 72420 Puebla, Mexico
| | - Yúvika Reyes-Albarracín
- Departamento de Toxicología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (Cinvestav-IPN), Avenida Instituto Politécnico Nacional 2508 Colonia San Pedro Zacatenco, 07360 México City, Mexico.
| | - M Elba Gonzalez-Mejia
- Departamento de Genética, Facultad de Medicina, Benemérita Universidad Autónoma de Puebla, Calle 13 Sur 2702, Colonia Los Volcanes, 72420 Puebla, Mexico.
| | - Esther López-Bayghen
- Departamento de Toxicología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (Cinvestav-IPN), Avenida Instituto Politécnico Nacional 2508 Colonia San Pedro Zacatenco, 07360 México City, Mexico.
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Elhenawy YI, Abdel Kader MS, Thabet RA. Performance of the MiniMed 780G system on mitigating menstrual cycle-dependent glycaemic variability. Diabetes Obes Metab 2024. [PMID: 39248215 DOI: 10.1111/dom.15891] [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] [Received: 06/21/2024] [Revised: 08/03/2024] [Accepted: 08/05/2024] [Indexed: 09/10/2024]
Abstract
AIM To map the glycaemic variabilities and insulin requirements across different phases of the menstrual cycle and assess the efficacy and performance of the MiniMed 780G system on mitigating glycaemic variabilities during phases of the menstrual cycle. MATERIALS AND METHODS A pilot study recruiting 15 adolescent and young adult females with type 1 diabetes was conducted. Only females with regular spontaneous menstruation were enrolled in the current study. Phases of each menstrual cycle were determined as either follicular phase or luteal phase. The study analysed continuous glucose monitoring metrics during two study periods: the open loop period (OLP) and the advanced hybrid closed-loop (AHCL) period; each period lasted 3 consecutive months. RESULTS During the OLP, the mean time in range (TIR) significantly decreased during the luteal phase compared with the follicular phase (65.13% ± 3.07% vs. 70.73% ± 2.05%) (P < .01). The mean time above range significantly increased from 21.07% ± 2.58% during the follicular phase to 24.87% ± 2.97% during the luteal phase (P < .01). After initiating the AHCL period, TIR was comparable during both phases of the menstrual cycle (P = .72), without increasing the time spent below 70 mg/dL (P > .05). Regarding insulin delivery during the AHCL period, the percentage of Auto basal and Auto correction delivered by the algorithm increased by 13.55% and 30.6%, respectively (P < .01), during the luteal phase. CONCLUSIONS The fully automated adaptive algorithm of the MiniMed 780G system mitigated menstrual cycle-dependent glycaemic variability, successfully attaining the recommended glycaemic outcomes with a TIR greater than 70% throughout the entire menstrual cycle.
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Affiliation(s)
- Yasmine Ibrahim Elhenawy
- Paediatric and Adolescent Diabetes Unit (PADU), Department of Paediatrics, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Mohamed S Abdel Kader
- Department of Paediatrics, Faculty of Medicine, Misr University of Science and Technology (MUST), Giza, Egypt
| | - Rasha A Thabet
- Paediatric and Adolescent Diabetes Unit (PADU), Department of Paediatrics, Faculty of Medicine, Ain Shams University, Cairo, Egypt
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Jiang Y, Yu T, Fan J, Guo X, Hua H, Xu D, Wang Y, Yan CH, Xu J. Longitudinal associations of social jetlag with obesity indicators among adolescents - Shanghai adolescent cohort. Sleep Med 2024; 121:171-178. [PMID: 38991425 DOI: 10.1016/j.sleep.2024.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 06/17/2024] [Accepted: 07/03/2024] [Indexed: 07/13/2024]
Abstract
OBJECTIVE To explore the longitudinal association between social-jetlag (SJL) and obesity development among adolescents, sex-difference and related modifying factors in the association. METHODS Based on Shanghai-Adolescent-Cohort during 2017-2021, a total of 609 students were investigated. In grade 6, 7 and 9, the information on SJL was collected using questionnaires, and anthropometric measures were conducted. The fingernail cortisol and progesterone levels in grade 6 (using LC-MS/MS) and body composition in grade 9 (using Inbody-S10) were measured. By the latent-class-mixture-modeling, two trajectories for SJL (high-level vs. low-level) throughout 4 years were developed. The prospective associations of SJL trajectories and weight/fat gains were analyzed by sex and under different (high/moderate/low) cortisol/progesterone stratifications. RESULTS In grades 6-9, 39.00%-44.50 % of adolescents experienced at least 1 h of SJL. Compared with the low-level SJL trajectory, the high-level SJL trajectory was associated with greater differences in body-mass-index Z-scores and waist-to-height ratios across 4 years, higher levels of body-fat-percentage and fat-mass-index in grade 9 (P-values<0.05), and such associations were stronger among girls and under moderate-to-high (vs. low) baseline cortisol and progesterone levels. However, no significant associations among boys were observed. CONCLUSIONS High-level SJL in adolescents may be associated with the development of obesity, especially among adolescent girls and under relatively high baseline cortisol and progesterone levels.
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Affiliation(s)
- Yining Jiang
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China; Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China
| | - Ting Yu
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China; Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China
| | - Jue Fan
- Department of Children's Healthcare, MOE-Shanghai Key Lab of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Shanghai Changning Maternity & Infant Health Institute, Shanghai, China
| | - Xiangrong Guo
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China; Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China
| | - Hui Hua
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China; Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China
| | - Dongqing Xu
- Institute of Higher Education, Fudan University, Shanghai, China
| | - Yuefen Wang
- Shanghai Municipal Education Commission Department, Shanghai, China
| | - Chong-Huai Yan
- Department of Children's Healthcare, MOE-Shanghai Key Lab of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jian Xu
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China; Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China; Department of Children's Healthcare, MOE-Shanghai Key Lab of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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4
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Silva LFR, Garcia BCC, Esteves EA, Mang ZA, Amorim FT, Dias-Peixoto MF, Gripp F, Tricoli V, de Castro Magalhaes F. The ASSIST trial: Acute effects of manipulating strength exercise volume on insulin sensitivity in obese adults: A protocol for a randomized controlled, crossover, clinical trial. PLoS One 2024; 19:e0302480. [PMID: 38805474 PMCID: PMC11132464 DOI: 10.1371/journal.pone.0302480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 04/03/2024] [Indexed: 05/30/2024] Open
Abstract
Type 2 diabetes mellitus is a disease in which insulin action is impaired, and an acute bout of strength exercise can improve insulin sensitivity. Current guidelines for strength exercise prescription suggest that 8 to 30 sets could be performed, although it is not known how variations in exercise volume impact insulin sensitivity. Additionally, this means an almost 4-fold difference in time commitment, which might directly impact an individual's motivation and perceived capacity to exercise. This study will assess the acute effects of high- and low-volume strength exercise sessions on insulin sensitivity. After being thoroughly familiarized, 14 obese individuals of both sexes (>40 year old) will undergo 3 random experimental sessions, with a minimum 4-day washout period between them: a high-volume session (7 exercises, 3 sets per exercise, 21 total sets); a low-volume session (7 exercises, 1 set per exercise, 7 total sets); and a control session, where no exercise will be performed. Psychological assessments (feeling, enjoyment, and self-efficacy) will be performed after the sessions. All sessions will be held at night, and the next morning, an oral glucose tolerance test will be performed in a local laboratory, from which indexes of insulin sensitivity will be derived. We believe this study will aid in strength exercise prescription for individuals who claim not to have time to exercise or who perceive high-volume strength exercise intimidating to adhere to. This trial was prospectively registered (ReBEC #RBR-3vj5dc5 https://ensaiosclinicos.gov.br/rg/RBR-3vj5dc5).
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Affiliation(s)
- Luis Filipe Rocha Silva
- Graduate Program in Health Sciences, Federal University of the Jequitinhonha and Mucuri Valleys, Diamantina, Minas Gerais, Brazil
| | - Bruna Caroline Chaves Garcia
- Laboratory of Exercise Biology and Immunometabolism, Centro Integrado de Pós-Graduação e Pesquisa em Saúde, Programa Multicêntrico de Pós-Graduação em Ciências Fisiológicas, Federal University of the Jequitinhonha and Mucuri Valleys, Diamantina, Minas Gerais, Brazil
| | - Elizabethe Adriana Esteves
- Graduate Program in Health Sciences, Federal University of the Jequitinhonha and Mucuri Valleys, Diamantina, Minas Gerais, Brazil
- Department of Nutrition, Federal University of the Jequitinhonha and Mucuri Valleys, Diamantina, Minas Gerais, Brazil
| | - Zachary Aaron Mang
- Post-doctoral Research Associate, Occupational Safety & Health, Los Alamos National Laboratory, Los Alamos, New Mexico, United States of America
| | - Fabiano Trigueiro Amorim
- Department of Health, Exercise, and Sports Sciences, University of New Mexico, Albuquerque, New Mexico, United States of America
| | - Marco Fabrício Dias-Peixoto
- Graduate Program in Health Sciences, Federal University of the Jequitinhonha and Mucuri Valleys, Diamantina, Minas Gerais, Brazil
- Department of Physical Education, Federal University of the Jequitinhonha and Mucuri Valleys, Diamantina, Minas Gerais, Brazil
| | - Fernando Gripp
- Department of Physical Education, Federal University of the Jequitinhonha and Mucuri Valleys, Diamantina, Minas Gerais, Brazil
| | - Valmor Tricoli
- School of Physical Education and Sport, University of Sao Paulo, Sao Paulo, Sao Paulo, Brazil
| | - Flavio de Castro Magalhaes
- Graduate Program in Health Sciences, Federal University of the Jequitinhonha and Mucuri Valleys, Diamantina, Minas Gerais, Brazil
- Department of Health, Exercise, and Sports Sciences, University of New Mexico, Albuquerque, New Mexico, United States of America
- Department of Physical Education, Federal University of the Jequitinhonha and Mucuri Valleys, Diamantina, Minas Gerais, Brazil
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Schieren A, Koch S, Pecht T, Simon MC. Impact of Physiological Fluctuations of Sex Hormones During the Menstrual Cycle on Glucose Metabolism and the Gut Microbiota. Exp Clin Endocrinol Diabetes 2024; 132:267-278. [PMID: 38382644 PMCID: PMC11093651 DOI: 10.1055/a-2273-5602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 01/18/2024] [Indexed: 02/23/2024]
Abstract
Diabetes mellitus is one of the most prevalent chronic diseases. Previous studies have shown differences in glucose metabolism between males and females. Moreover, difficulties in medication adherence have been reported in females with type 2 diabetes. These observations are believed to be caused by fluctuations in sex hormone concentrations during the menstrual cycle. Furthermore, gut microbiota is linked to female host metabolism and sex hormone production. Understanding the interactions between fluctuating hormone concentrations during the menstrual cycle, gut microbiota, and glucose metabolism in humans is significant because of the increasing prevalence of diabetes and the consequent need to expand preventive efforts. A literature search was performed to determine and summarize the existing evidence, deduce future research needs to maintain female health, and investigate the relationship between the physiological menstrual cycle and glucose metabolism. Studies from 1967 to 2020 have already examined the relationship between variations during the menstrual cycle and glucose metabolism in healthy female subjects using an oral-glucose tolerance test or intravenous glucose tolerance test. However, the overall number of studies is rather small and the results are contradictory, as some studies detected differences in glucose concentrations depending on the different cycle phases, whereas others did not. Some studies reported lower glucose levels in the follicular phase than in the luteal phase, whereas another study detected the opposite. Data on gut microbiota in relation to the menstrual cycle are limited. Conflicting results exist when examining the effect of hormonal contraceptives on the gut microbiota and changes in the course of the menstrual cycle. The results indicate that the menstrual cycle, especially fluctuating sex hormones, might impact the gut microbiota composition.The menstrual cycle may affect the gut microbiota composition and glucose metabolism. These results indicate that glucose tolerance may be the greatest in the follicular phase; however, further well-conducted studies are needed to support this assumption.
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Affiliation(s)
- Alina Schieren
- University of Bonn, Institute of Nutrition and Food Sciences, Nutrition
and Microbiota, Bonn, Germany
| | - Sandra Koch
- University of Bonn, Institute of Nutrition and Food Sciences, Nutrition
and Microbiota, Bonn, Germany
| | - Tal Pecht
- University of Bonn, Life & Medical Sciences (LIMES) Institute,
Department for Genomics and Immunoregulation, Bonn, Germany
- German Center for Neurodegenerative Diseases (DZNE), Systems Medicine,
Bonn, Germany
| | - Marie-Christine Simon
- University of Bonn, Institute of Nutrition and Food Sciences, Nutrition
and Microbiota, Bonn, Germany
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Busonero F, Lenarduzzi S, Crobu F, Gentile RM, Carta A, Cracco F, Maschio A, Camarda S, Marongiu M, Zanetti D, Conversano C, Di Lorenzo G, Mazzà D, De Seta F, Girotto G, Sanna S. The Women4Health cohort: a unique cohort to study women-specific mechanisms of cardio-metabolic regulation. EUROPEAN HEART JOURNAL OPEN 2024; 4:oeae012. [PMID: 38532851 PMCID: PMC10964981 DOI: 10.1093/ehjopen/oeae012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 02/22/2024] [Accepted: 02/26/2024] [Indexed: 03/28/2024]
Abstract
Aims Epidemiological research has shown relevant differences between sexes in clinical manifestations, severity, and progression of cardiovascular and metabolic disorders. To date, the mechanisms underlying these differences remain unknown. Given the rising incidence of such diseases, gender-specific research on established and emerging risk factors, such as dysfunction of glycaemic and/or lipid metabolism, of sex hormones and of gut microbiome, is of paramount importance. The relationships between sex hormones, gut microbiome, and host glycaemic and/or lipid metabolism are largely unknown even in the homoeostasis status. Yet this knowledge gap would be pivotal to pinpoint to key mechanisms that are likely to be disrupted in disease context. Methods and results Here we present the Women4Health (W4H) cohort, a unique cohort comprising up to 300 healthy women followed up during a natural menstrual cycle, set up with the primary goal to investigate the combined role of sex hormones and gut microbiota variations in regulating host lipid and glucose metabolism during homoeostasis, using a multi-omics strategy. Additionally, the W4H cohort will take into consideration another ecosystem that is unique to women, the vaginal microbiome, investigating its interaction with gut microbiome and exploring-for the first time-its role in cardiometabolic disorders. Conclusion The W4H cohort study lays a foundation for improving current knowledge of women-specific mechanisms in cardiometabolic regulation. It aspires to transform insights on host-microbiota interactions into prevention and therapeutic approaches for personalized health care.
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Affiliation(s)
- Fabio Busonero
- Institute of Genetic and Biomedical Research (IRGB), National Research Council (CNR), c/o Cittadella Universitaria di Monserrato, SS554 Km 4500, Monserrato, 09042, CA, Italy
| | - Stefania Lenarduzzi
- Institute for Maternal and Child Health—IRCCS ‘Burlo Garofolo’, Via dell'Istria 65/1, Trieste, 34137, TS, Italy
| | - Francesca Crobu
- Institute of Genetic and Biomedical Research (IRGB), National Research Council (CNR), c/o Cittadella Universitaria di Monserrato, SS554 Km 4500, Monserrato, 09042, CA, Italy
| | - Roberta Marie Gentile
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Piazzale Europa 1, Trieste, 34137, TS, Italy
| | - Andrea Carta
- Department of Business and Economics, University of Cagliari, via Università 40, 09124, Cagliari, CA, Italy
| | - Francesco Cracco
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Piazzale Europa 1, Trieste, 34137, TS, Italy
| | - Andrea Maschio
- Institute of Genetic and Biomedical Research (IRGB), National Research Council (CNR), c/o Cittadella Universitaria di Monserrato, SS554 Km 4500, Monserrato, 09042, CA, Italy
| | - Silvia Camarda
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Piazzale Europa 1, Trieste, 34137, TS, Italy
| | - Michele Marongiu
- Institute of Genetic and Biomedical Research (IRGB), National Research Council (CNR), c/o Cittadella Universitaria di Monserrato, SS554 Km 4500, Monserrato, 09042, CA, Italy
| | - Daniela Zanetti
- Institute of Genetic and Biomedical Research (IRGB), National Research Council (CNR), c/o Cittadella Universitaria di Monserrato, SS554 Km 4500, Monserrato, 09042, CA, Italy
| | - Claudio Conversano
- Institute of Genetic and Biomedical Research (IRGB), National Research Council (CNR), c/o Cittadella Universitaria di Monserrato, SS554 Km 4500, Monserrato, 09042, CA, Italy
- Department of Business and Economics, University of Cagliari, via Università 40, 09124, Cagliari, CA, Italy
| | - Giovanni Di Lorenzo
- Institute for Maternal and Child Health—IRCCS ‘Burlo Garofolo’, Via dell'Istria 65/1, Trieste, 34137, TS, Italy
| | - Daniela Mazzà
- Institute for Maternal and Child Health—IRCCS ‘Burlo Garofolo’, Via dell'Istria 65/1, Trieste, 34137, TS, Italy
| | - Francesco De Seta
- Institute for Maternal and Child Health—IRCCS ‘Burlo Garofolo’, Via dell'Istria 65/1, Trieste, 34137, TS, Italy
| | - Giorgia Girotto
- Institute for Maternal and Child Health—IRCCS ‘Burlo Garofolo’, Via dell'Istria 65/1, Trieste, 34137, TS, Italy
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Piazzale Europa 1, Trieste, 34137, TS, Italy
| | - Serena Sanna
- Institute of Genetic and Biomedical Research (IRGB), National Research Council (CNR), c/o Cittadella Universitaria di Monserrato, SS554 Km 4500, Monserrato, 09042, CA, Italy
- Department of Genetics, University Medical Center Groningen, Hanzeplein 1, 97123 GZ, Groningen, The Netherlands
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Cholekho S, Fan Z, Tan H. Case report: catamenial hyperglycemia: the trigger of recurrent DKA in a female patient with three-year follow-up. Front Endocrinol (Lausanne) 2024; 15:1305332. [PMID: 38444588 PMCID: PMC10912938 DOI: 10.3389/fendo.2024.1305332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Accepted: 01/09/2024] [Indexed: 03/07/2024] Open
Abstract
Background Catamenial hyperglycemia is a rare type of spontaneous, recurring Diabetic Ketoacidosis(DKA) in females during the luteal phase, most commonly observed in type 1 diabetes mellitus. Even with controlled serum glucose levels, adherence to a diabetic diet, medications, and in the absence of other common influencing factors such as infection, glucose levels tend to increase during the premenstrual period. This uncommon issue related to the menstrual cycle phase has not been extensively researched. Therefore, this study aims to diagnose catamenial hyperglycemia promptly and initiate early treatment to prevent complications. Case report We presented a case of a 19-year-old girl who experienced recurrent DKA during the premenstrual period, without an apparent cause. She was admitted multiple times to various hospitals and sought consultations, undergoing numerous laboratory and imaging examinations, yet the etiology remained elusive. Ultimately, she received a diagnosis of catamenial diabetic hyperglycemia. To prevent recurrence of complications associated with catamenial hyperglycemia, we initiated a comprehensive approach which included continuous glucose monitoring, adherence to a strict diabetic diet, diabetic health education, regular exercise, timely medication administration, and increase in insulin dosage during the premenstrual period based on glucose levels. Conclusions Although catamenial hyperglycemia is rare, it should be considered a cause of recurrent hyperglycemia in any postpubertal female to prevent complications. The specific underlying mechanisms responsible for catamenial hyperglycemia or DKA remain unidentified.
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Affiliation(s)
| | | | - Huiwen Tan
- Department of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu, China
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MacDonald-Ramos K, Monroy A, Bobadilla-Bravo M, Cerbón M. Silymarin Reduced Insulin Resistance in Non-Diabetic Women with Obesity. Int J Mol Sci 2024; 25:2050. [PMID: 38396727 PMCID: PMC10888588 DOI: 10.3390/ijms25042050] [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: 12/31/2023] [Revised: 01/25/2024] [Accepted: 01/26/2024] [Indexed: 02/25/2024] Open
Abstract
Silymarin has ameliorated obesity, type 2 diabetes (T2DM), and insulin resistance (IR) in combination with standard therapy, diet, or exercise in recent studies. Obesity and IR are the main risk factors for developing T2DM and other metabolic disorders. Today, there is a need for new strategies to target IR in patients with these metabolic diseases. In the present longitudinal study, a group of non-diabetic insulin-resistant women with type 1 and type 2 obesity were given silymarin for 12 weeks, with no change in habitual diet and physical activity. We used the Homeostatic Model Assessment for Insulin Resistance Index (HOMA-IR) to determine IR at baseline and after silymarin treatment (t = 12 weeks). We obtained five timepoint oral glucose tolerance tests, and other biochemical and clinical parameters were analyzed before and after treatment. Treatment with silymarin alone significantly reduced mean fasting plasma glucose (FPG) and HOMA-IR levels at 12 weeks compared to baseline values (p < 0.05). Mean fasting plasma insulin (FPI), total cholesterol, high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), triglycerides (Tg), indirect bilirubin, and C-reactive protein (CRP) levels decreased compared to baseline values, although changes were non-significant. The overall results suggest that silymarin may offer a therapeutic alternative to improve IR in non-diabetic individuals with obesity. Further clinical trials are needed in this type of patient to strengthen the results of this study.
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Affiliation(s)
- Karla MacDonald-Ramos
- Programa de Doctorado en Ciencias Biomédicas, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico
- Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico;
| | - Adriana Monroy
- Servicio de Oncología, Hospital General de México Dr. Eduardo Liceaga, Ciudad de México 06720, Mexico;
| | - Mariana Bobadilla-Bravo
- Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico;
| | - Marco Cerbón
- Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico;
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9
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Lei R, Chen S, Li W. Advances in the study of the correlation between insulin resistance and infertility. Front Endocrinol (Lausanne) 2024; 15:1288326. [PMID: 38348417 PMCID: PMC10860338 DOI: 10.3389/fendo.2024.1288326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 01/04/2024] [Indexed: 02/15/2024] Open
Abstract
This is a narrative review of the progress of research on the correlation between insulin resistance and infertility. Insulin resistance (IR) is not only involved in the development of various metabolic diseases, but also affects female reproductive function, and to some extent is closely related to female infertility. IR may increase the risk of female infertility by activating oxidative stress, interfering with energy metabolism, affecting oocyte development, embryo quality and endometrial tolerance, affecting hormone secretion and embryo implantation, as well as affecting assisted conception outcomes in infertile populations and reducing the success rate of assisted reproductive technology treatment in infertile populations. In addition, IR is closely associated with spontaneous abortion, gestational diabetes and other adverse pregnancies, and if not corrected in time, may increase the risk of obesity and metabolic diseases in the offspring in the long term. This article provides a review of the relationship between IR and infertility to provide new ideas for the treatment of infertility.
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Affiliation(s)
| | | | - Weihong Li
- Reproductive Medical Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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10
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Matsuyama S, Whiteside S, Li SY. Implantation and Decidualization in PCOS: Unraveling the Complexities of Pregnancy. Int J Mol Sci 2024; 25:1203. [PMID: 38256276 PMCID: PMC10816633 DOI: 10.3390/ijms25021203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 01/15/2024] [Accepted: 01/16/2024] [Indexed: 01/24/2024] Open
Abstract
Polycystic Ovary Syndrome (PCOS) is a prevalent endocrine disorder in women of reproductive age, affecting 5-15% globally with a large proportion undiagnosed. This review explores the multifaceted nature of PCOS and its impact on pregnancy, including challenges in fertility due to hormonal imbalances and insulin resistance. Despite restoring ovulation pharmacologically, women with PCOS face lower pregnancy rates and higher risks of implantation failure and miscarriage. Our review focuses on the complexities of hormonal and metabolic imbalances that impair endometrial receptivity and decidualization in PCOS. Disrupted estrogen signaling, reduced integrity of endometrial epithelial tight junctions, and insulin resistance impair the window of endometrial receptivity. Furthermore, progesterone resistance adversely affects decidualization. Our review also examines the roles of various immune cells and inflammatory processes in the endometrium, contributing to the condition's reproductive challenges. Lastly, we discuss the use of rodent models in understanding PCOS, particularly those induced by hormonal interventions, offering insights into the syndrome's impact on pregnancy and potential treatments. This comprehensive review underscores the need for advanced understanding and treatment strategies to address the reproductive complications associated with PCOS, emphasizing its intricate interplay of hormonal, metabolic, and immune factors.
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Affiliation(s)
| | | | - Shu-Yun Li
- Reproductive Sciences Center, Division of Developmental Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229, USA; (S.M.); (S.W.)
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11
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MacGregor KA, Ho FK, Celis-Morales CA, Pell JP, Gallagher IJ, Moran CN. Association between menstrual cycle phase and metabolites in healthy, regularly menstruating women in UK Biobank, and effect modification by inflammatory markers and risk factors for metabolic disease. BMC Med 2023; 21:488. [PMID: 38066548 PMCID: PMC10709933 DOI: 10.1186/s12916-023-03195-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 11/23/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND Preliminary evidence demonstrates some parameters of metabolic control, including glycaemic control, lipid control and insulin resistance, vary across the menstrual cycle. However, the literature is inconsistent, and the underlying mechanisms remain uncertain. This study aimed to investigate the association between the menstrual cycle phase and metabolites and to explore potential mediators and moderators of these associations. METHODS We undertook a cross-sectional cohort study using UK Biobank. The outcome variables were glucose; triglyceride; triglyceride to glucose index (TyG index); total, HDL and LDL cholesterol; and total to HDL cholesterol ratio. Generalised additive models (GAM) were used to investigate non-linear associations between the menstrual cycle phase and outcome variables. Anthropometric, lifestyle, fitness and inflammatory markers were explored as potential mediators and moderators of the associations between the menstrual cycle phase and outcome variables. RESULTS Data from 8694 regularly menstruating women in UK Biobank were analysed. Non-linear associations were observed between the menstrual cycle phase and total (p < 0.001), HDL (p < 0.001), LDL (p = 0.012) and total to HDL cholesterol (p < 0.001), but not glucose (p = 0.072), triglyceride (p = 0.066) or TyG index (p = 0.100). Neither anthropometric, physical fitness, physical activity, nor inflammatory markers mediated the associations between the menstrual cycle phase and metabolites. Moderator analysis demonstrated a greater magnitude of variation for all metabolites across the menstrual cycle in the highest and lowest two quartiles of fat mass and physical activity, respectively. CONCLUSIONS Cholesterol profiles exhibit a non-linear relationship with the menstrual cycle phase. Physical activity, anthropometric and fitness variables moderate the associations between the menstrual cycle phase and metabolite concentration. These findings indicate the potential importance of physical activity and fat mass as modifiable risk factors of the intra-individual variation in metabolic control across the menstrual cycle in pre-menopausal women.
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Affiliation(s)
- Kirstin A MacGregor
- Physiology, Exercise and Nutrition Research Group, University of Stirling, Stirling, Scotland, UK
| | - Frederick K Ho
- School of Health and Wellbeing, University of Glasgow, Glasgow, Scotland, UK
| | - Carlos A Celis-Morales
- School Cardiovascular and Metabolic Health, University of Glasgow, BHF Glasgow Cardiovascular Research Centre, Glasgow, Scotland, UK
- Human Performance Lab, Education, Physical Activity and Health Research Unit, University Católica del Maule, Talca, Chile
| | - Jill P Pell
- Human Performance Lab, Education, Physical Activity and Health Research Unit, University Católica del Maule, Talca, Chile
| | - Iain J Gallagher
- Physiology, Exercise and Nutrition Research Group, University of Stirling, Stirling, Scotland, UK
- Centre for Biomedicine and Global Health, School of Applied Sciences, Edinburgh Napier University, Sighthill Campus, Sighthill Court, Edinburgh, UK
| | - Colin N Moran
- Physiology, Exercise and Nutrition Research Group, University of Stirling, Stirling, Scotland, UK.
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12
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Cai X, Thorand B, Hohenester S, Prehn C, Cecil A, Adamski J, Zeller T, Dennis A, Banerjee R, Peters A, Yaghootkar H, Nano J. Association of sex hormones and sex hormone-binding globulin with liver fat in men and women: an observational and Mendelian randomization study. Front Endocrinol (Lausanne) 2023; 14:1223162. [PMID: 37900132 PMCID: PMC10611498 DOI: 10.3389/fendo.2023.1223162] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 09/11/2023] [Indexed: 10/31/2023] Open
Abstract
Background Sex hormones and sex hormone-binding globulin (SHBG) may play a role in fatty liver development. We sought to examine the association of various endogenous sex hormones, including testosterone (T), and SHBG with liver fat using complementary observational and Mendelian randomization (MR) analyses. Methods The observational analysis included a total of 2,239 participants (mean age 60 years; 35% postmenopausal women) from the population-based KORA study (average follow-up time: 6.5 years). We conducted linear regression analysis to investigate the sex-specific associations of sex hormones and SHBG with liver fat, estimated by fatty liver index (FLI). For MR analyses, we selected genetic variants associated with sex hormones and SHBG and extracted their associations with magnetic resonance imaging measured liver fat from the largest up to date European genome-wide associations studies. Results In the observational analysis, T, dihydrotestosterone (DHT), progesterone and 17α-hydroxyprogesterone (17-OHP) were inversely associated with FLI in men, with beta estimates ranging from -4.23 to -2.30 [p-value <0.001 to 0.003]. Whereas in women, a positive association of free T with FLI (β = 4.17, 95%CI: 1.35, 6.98) was observed. SHBG was inversely associated with FLI across sexes [men: -3.45 (-5.13, -1.78); women: -9.23 (-12.19, -6.28)]. No causal association was found between genetically determined sex hormones and liver fat, but higher genetically determined SHBG was associated with lower liver fat in women (β = -0.36, 95% CI: -0.61, -0.12). Conclusion Our results provide suggestive evidence for a causal association between SHBG and liver fat in women, implicating the protective role of SHBG against liver fat accumulation.
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Affiliation(s)
- Xinting Cai
- Institute of Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
- Institute for Medical Information Processing, Biometry, and Epidemiology – IBE, Faculty of Medicine, Ludwig-Maximilians University of Munich, Munich, Germany
- Pettenkofer School of Public Health, Ludwig-Maximilians University of Munich, Munich, Germany
| | - Barbara Thorand
- Institute of Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
- Institute for Medical Information Processing, Biometry, and Epidemiology – IBE, Faculty of Medicine, Ludwig-Maximilians University of Munich, Munich, Germany
- German Center for Diabetes Research (DZD), partner site Munich-Neuherberg, Neuherberg, Germany
| | - Simon Hohenester
- Department of Medicine II, University Hospital, Ludwig-Maximilians University of Munich, Munich, Germany
| | - Cornelia Prehn
- Core Facility Metabolomics and Proteomics, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Alexander Cecil
- Core Facility Metabolomics and Proteomics, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Jerzy Adamski
- Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Queenstown, Singapore
- Institute of Biochemistry, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Tanja Zeller
- University Center of Cardiovascular Science, University Heart and Vascular Center Hamburg, Hamburg, Germany
- Clinic of Cardiology, University Heart and Vascular Center Hamburg, Hamburg, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck, Hamburg, Germany
| | | | | | - Annette Peters
- Institute of Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
- Institute for Medical Information Processing, Biometry, and Epidemiology – IBE, Faculty of Medicine, Ludwig-Maximilians University of Munich, Munich, Germany
- German Center for Diabetes Research (DZD), partner site Munich-Neuherberg, Neuherberg, Germany
- German Center for Cardiovascular Disease Research (DZHK), partner site Munich Heart Alliance, Munich, Germany
| | - Hanieh Yaghootkar
- College of Health and Science, University of Lincoln, Joseph Banks Laboratories, Green Lane, Lincoln, Lincolnshire, United Kingdom
| | - Jana Nano
- Institute of Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
- Institute for Medical Information Processing, Biometry, and Epidemiology – IBE, Faculty of Medicine, Ludwig-Maximilians University of Munich, Munich, Germany
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13
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Mewes D, Wäldchen M, Knoll C, Raile K, Braune K. Variability of Glycemic Outcomes and Insulin Requirements Throughout the Menstrual Cycle: A Qualitative Study on Women With Type 1 Diabetes Using an Open-Source Automated Insulin Delivery System. J Diabetes Sci Technol 2023; 17:1304-1316. [PMID: 35254146 PMCID: PMC10563528 DOI: 10.1177/19322968221080199] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
BACKGROUND The impact of hormone dynamics throughout the menstrual cycle on insulin sensitivity represents a currently under-researched area. Despite therapeutic and technological advances, self-managing insulin therapy remains challenging for women with type 1 diabetes (T1D). METHODS To investigate perceived changes in glycemic levels and insulin requirements throughout the menstrual cycle and different phases of life, we performed semi-structured interviews with 12 women with T1D who are using personalized open-source automated insulin delivery (AID) systems. Transcripts were analyzed using thematic analysis with an inductive, hypothesis-generating approach. RESULTS Participants reported significant differences between the follicular phase, ovulation, and luteal phase of the menstrual cycle and also during puberty, pregnancy, and menopause. All participants reported increased comfort and safety since using AID, but were still required to manually adjust their therapy according to their cycle. A lack of information and awareness and limited guidance by health care providers were frequently mentioned. Although individual adjustment strategies exist, achieving optimum outcomes was still perceived as challenging. CONCLUSIONS This study highlights that scientific evidence, therapeutic options, and professional guidance on female health-related aspects in T1D are insufficient to date. Further efforts are required to better inform people with T1D, as well as for health care professionals, researchers, medical device manufacturers, and regulatory bodies to better address female health needs in therapeutic advances.
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Affiliation(s)
- Darius Mewes
- Department of Pediatric Endocrinology and Diabetes, Charité—Universitätsmedizin Berlin, Berlin, Germany
| | - Mandy Wäldchen
- School of Sociology, University College Dublin, Dublin, Ireland
| | - Christine Knoll
- Department of Pediatric Endocrinology and Diabetes, Charité—Universitätsmedizin Berlin, Berlin, Germany
- School of Sociology, University College Dublin, Dublin, Ireland
- Berlin Institute of Health (BIH), Berlin, Germany
| | - Klemens Raile
- Department of Pediatric Endocrinology and Diabetes, Charité—Universitätsmedizin Berlin, Berlin, Germany
| | - Katarina Braune
- Department of Pediatric Endocrinology and Diabetes, Charité—Universitätsmedizin Berlin, Berlin, Germany
- Berlin Institute of Health (BIH), Berlin, Germany
- Institute of Medical Informatics, Charité—Universitätsmedizin Berlin, Berlin, Germany
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14
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Hummel J, Benkendorff C, Fritsche L, Prystupa K, Vosseler A, Gancheva S, Trenkamp S, Birkenfeld AL, Preissl H, Roden M, Häring HU, Fritsche A, Peter A, Wagner R, Kullmann S, Heni M. Brain insulin action on peripheral insulin sensitivity in women depends on menstrual cycle phase. Nat Metab 2023; 5:1475-1482. [PMID: 37735274 PMCID: PMC10513929 DOI: 10.1038/s42255-023-00869-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 07/19/2023] [Indexed: 09/23/2023]
Abstract
Insulin action in the human brain modulates eating behaviour, whole-body metabolism and body fat distribution1,2. In particular, brain insulin action increases whole-body insulin sensitivity, but these studies were mainly performed in lean men3,4. Here we investigate metabolic and hypothalamic effects of brain insulin action in women with a focus on the impact of menstrual cycle ( ClinicalTrials.gov registration: NCT03929419 ).Eleven women underwent four hyperinsulinemic-euglycemic clamps, two in the follicular phase and two in the luteal phase. Brain insulin action was introduced using nasal insulin spray5-7 and compared to placebo spray in a fourfold crossover design with change in glucose infusion rate as the primary endpoint. Here we show that during the follicular phase, more glucose has to be infused after administration of nasal insulin than after administration of placebo. This remains significant after adjustment for blood glucose and insulin. During the luteal phase, no significant influence of brain insulin action on glucose infusion rate is detected after adjustment for blood glucose and insulin (secondary endpoint). In 15 other women, hypothalamic insulin sensitivity was assessed in a within-subject design by functional magnetic resonance imaging with intranasal insulin administration8. Hypothalamus responsivity is influenced by insulin in the follicular phase but not the luteal phase.Our study therefore highlights that brain insulin action improves peripheral insulin sensitivity also in women but only during the follicular phase. Thus, brain insulin resistance could contribute to whole-body insulin resistance in the luteal phase of the menstrual cycle.
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Affiliation(s)
- Julia Hummel
- Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Center Munich at the University of Tübingen, Eberhard Karls University Tübingen, Tübingen, Germany
- Department of Internal Medicine I, Division of Endocrinology and Diabetology, University of Ulm, Ulm, Germany
| | - Charlotte Benkendorff
- Department of Internal Medicine, Division of Diabetology, Endocrinology and Nephrology, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Louise Fritsche
- Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Center Munich at the University of Tübingen, Eberhard Karls University Tübingen, Tübingen, Germany
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany
| | - Katsiaryna Prystupa
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany
- Institute for Clinical Diabetology, German Diabetes Center, Leibniz Institute for Diabetes Research at Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Andreas Vosseler
- Department of Internal Medicine, Division of Diabetology, Endocrinology and Nephrology, Eberhard Karls University Tübingen, Tübingen, Germany
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany
| | - Sofiya Gancheva
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany
- Institute for Clinical Diabetology, German Diabetes Center, Leibniz Institute for Diabetes Research at Heinrich Heine University Düsseldorf, Düsseldorf, Germany
- Department of Endocrinology and Diabetology, University Hospital Düsseldorf, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Sandra Trenkamp
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany
- Institute for Clinical Diabetology, German Diabetes Center, Leibniz Institute for Diabetes Research at Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Andreas L Birkenfeld
- Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Center Munich at the University of Tübingen, Eberhard Karls University Tübingen, Tübingen, Germany
- Department of Internal Medicine, Division of Diabetology, Endocrinology and Nephrology, Eberhard Karls University Tübingen, Tübingen, Germany
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany
| | - Hubert Preissl
- Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Center Munich at the University of Tübingen, Eberhard Karls University Tübingen, Tübingen, Germany
- Department of Internal Medicine, Division of Diabetology, Endocrinology and Nephrology, Eberhard Karls University Tübingen, Tübingen, Germany
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany
| | - Michael Roden
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany
- Institute for Clinical Diabetology, German Diabetes Center, Leibniz Institute for Diabetes Research at Heinrich Heine University Düsseldorf, Düsseldorf, Germany
- Department of Endocrinology and Diabetology, University Hospital Düsseldorf, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Hans-Ulrich Häring
- Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Center Munich at the University of Tübingen, Eberhard Karls University Tübingen, Tübingen, Germany
- Department of Internal Medicine, Division of Diabetology, Endocrinology and Nephrology, Eberhard Karls University Tübingen, Tübingen, Germany
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany
| | - Andreas Fritsche
- Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Center Munich at the University of Tübingen, Eberhard Karls University Tübingen, Tübingen, Germany
- Department of Internal Medicine, Division of Diabetology, Endocrinology and Nephrology, Eberhard Karls University Tübingen, Tübingen, Germany
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany
| | - Andreas Peter
- Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Center Munich at the University of Tübingen, Eberhard Karls University Tübingen, Tübingen, Germany
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany
- Department for Diagnostic Laboratory Medicine, Institute for Clinical Chemistry and Pathobiochemistry, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Robert Wagner
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany
- Institute for Clinical Diabetology, German Diabetes Center, Leibniz Institute for Diabetes Research at Heinrich Heine University Düsseldorf, Düsseldorf, Germany
- Department of Endocrinology and Diabetology, University Hospital Düsseldorf, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Stephanie Kullmann
- Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Center Munich at the University of Tübingen, Eberhard Karls University Tübingen, Tübingen, Germany
- Department of Internal Medicine, Division of Diabetology, Endocrinology and Nephrology, Eberhard Karls University Tübingen, Tübingen, Germany
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany
| | - Martin Heni
- Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Center Munich at the University of Tübingen, Eberhard Karls University Tübingen, Tübingen, Germany.
- Department of Internal Medicine I, Division of Endocrinology and Diabetology, University of Ulm, Ulm, Germany.
- Department of Internal Medicine, Division of Diabetology, Endocrinology and Nephrology, Eberhard Karls University Tübingen, Tübingen, Germany.
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany.
- Department for Diagnostic Laboratory Medicine, Institute for Clinical Chemistry and Pathobiochemistry, Eberhard Karls University Tübingen, Tübingen, Germany.
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Lin G, Siddiqui R, Lin Z, Blodgett JM, Patel SN, Truong KN, Mariakakis A. Blood glucose variance measured by continuous glucose monitors across the menstrual cycle. NPJ Digit Med 2023; 6:140. [PMID: 37567949 PMCID: PMC10421863 DOI: 10.1038/s41746-023-00884-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 07/21/2023] [Indexed: 08/13/2023] Open
Abstract
Past studies on how blood glucose levels vary across the menstrual cycle have largely shown inconsistent results based on limited blood draws. In this study, 49 individuals wore a Dexcom G6 continuous glucose monitor and a Fitbit Sense smartwatch while measuring their menstrual hormones and self-reporting characteristics of their menstrual cycles daily. The average duration of participation was 79.3 ± 21.2 days, leading to a total of 149 cycles and 554 phases in our dataset. We use periodic restricted cubic splines to evaluate the relationship between blood glucose and the menstrual cycle, after which we assess phase-based changes in daily median glucose level and associated physiological parameters using mixed-effects models. Results indicate that daily median glucose levels increase and decrease in a biphasic pattern, with maximum levels occurring during the luteal phase and minimum levels occurring during the late-follicular phase. These trends are robust to adjustments for participant characteristics (e.g., age, BMI, weight) and self-reported menstrual experiences (e.g., food cravings, bloating, fatigue). We identify negative associations between each of daily estrogen level, step count, and low degrees of fatigue with higher median glucose levels. Conversely, we find positive associations between higher food cravings and higher median glucose levels. This study suggests that blood glucose could be an important parameter for understanding menstrual health, prompting further investigation into how the menstrual cycle influences glucose fluctuation.
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Affiliation(s)
- Georgianna Lin
- University of Toronto, Computer Science, Toronto, ON, Canada.
| | | | - Zixiong Lin
- University of Toronto, Computer Science, Toronto, ON, Canada
| | - Joanna M Blodgett
- University College London, Institute of Sport Exercise & Health, London, UK
| | - Shwetak N Patel
- University of Washington, Computer Science & Engineering, Seattle, WA, USA
| | - Khai N Truong
- University of Toronto, Computer Science, Toronto, ON, Canada
| | - Alex Mariakakis
- University of Toronto, Computer Science, Toronto, ON, Canada
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16
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Pasca L, Ferraris C, Guglielmetti M, Varesio C, Totaro M, Trentani C, Marazzi C, Brambilla I, Ballante E, Armeno M, Valenzuela GR, Caraballo RH, Veggiotti P, Tagliabue A, De Giorgis V. Ketonemia variability through menstrual cycle in patients undergoing classic ketogenic diet. Front Nutr 2023; 10:1188055. [PMID: 37575326 PMCID: PMC10413101 DOI: 10.3389/fnut.2023.1188055] [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: 03/16/2023] [Accepted: 07/13/2023] [Indexed: 08/15/2023] Open
Abstract
Introduction Ketogenic dietary therapies (KDT) are well-established, safe, non-pharmacologic treatments used for children and adults with drug-resistant epilepsy and other neurological disorders. Ketone bodies (KBs) levels are recognized as helpful to check compliance to the KDT and to attempt titration of the diet according to the individualized needs. KBs might undergo inter-individual and intra-individual variability and can be affected by several factors. Possible variations in glycemia and ketone bodies blood levels according to the menstrual cycle have not been systematically assessed yet, but this time window deserves special attention because of hormonal and metabolic related changes. Methods This study aims at searching for subtle changes in KBs blood level during menstrual cycle in female patients undergoing a stable ketogenic diet, by analyzing 3-months daily measurement of ketone bodies blood levels and glucose blood levels throughout the menstrual cycle. Results We report the preliminary results on six female patients affected by GLUT1DS or drug resistant epilepsy, undergoing a stable classic ketogenic diet. A significant increase in glucose blood levels during menstruation was found in the entire cohort. As far as the ketone bodies blood levels, an inversely proportional trend compared to glycemia was noted. Conclusion Exploring whether ketonemia variations might occur according to the menstrual cycle is relevant to determine the feasibility of transient preventive diet adjustments to assure a continuative treatment efficacy and to enhance dietary behavior support. Clinical trial registration clinicaltrials.gov, identifier NCT05234411.
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Affiliation(s)
- Ludovica Pasca
- Department of Child Neurology and Psychiatry, IRCCS Mondino Foundation, Pavia, Italy
- Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy
| | - Cinzia Ferraris
- Department of Public Health, Experimental and Forensic Medicine, Human Nutrition and Eating Disorder Research Center, University of Pavia, Pavia, Italy
- Department of Public Health, Experimental and Forensic Medicine, Ketogenic Metabolic Therapy Laboratory, University of Pavia, Pavia, Italy
| | - Monica Guglielmetti
- Department of Public Health, Experimental and Forensic Medicine, Human Nutrition and Eating Disorder Research Center, University of Pavia, Pavia, Italy
- Department of Public Health, Experimental and Forensic Medicine, Ketogenic Metabolic Therapy Laboratory, University of Pavia, Pavia, Italy
| | - Costanza Varesio
- Department of Child Neurology and Psychiatry, IRCCS Mondino Foundation, Pavia, Italy
- Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy
| | - Martina Totaro
- Department of Child Neurology and Psychiatry, IRCCS Mondino Foundation, Pavia, Italy
- Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy
| | - Claudia Trentani
- Department of Public Health, Experimental and Forensic Medicine, Human Nutrition and Eating Disorder Research Center, University of Pavia, Pavia, Italy
- Department of Public Health, Experimental and Forensic Medicine, Ketogenic Metabolic Therapy Laboratory, University of Pavia, Pavia, Italy
| | - Claudia Marazzi
- Department of Public Health, Experimental and Forensic Medicine, Human Nutrition and Eating Disorder Research Center, University of Pavia, Pavia, Italy
- Department of Public Health, Experimental and Forensic Medicine, Ketogenic Metabolic Therapy Laboratory, University of Pavia, Pavia, Italy
| | - Ilaria Brambilla
- Department of Pediatrics, Pediatric Clinic, Foundation IRCCS Policlinico San Matteo, University of Pavia, Pavia, Italy
| | - Elena Ballante
- Department of Political and Social Sciences, University of Pavia, Pavia, Italy
- BioData Science Center, IRCCS Mondino Foundation, Pavia, Italy
| | - Marisa Armeno
- Department of Nutrition, Ketogenic Therapy Program Coordinator at Hospital Prof. Dr. Juan P. Garrahan, Buenos Aires, Argentina
| | | | - Roberto H. Caraballo
- Department of Neurology, Hospital Prof. Dr. Juan P. Garrahan, Buenos Aires, Argentina
| | - Pierangelo Veggiotti
- Children Hospital Department Scienze biomediche e cliniche, University of Milan, Milan, Italy
| | - Anna Tagliabue
- Department of Public Health, Experimental and Forensic Medicine, Human Nutrition and Eating Disorder Research Center, University of Pavia, Pavia, Italy
- Department of Public Health, Experimental and Forensic Medicine, Ketogenic Metabolic Therapy Laboratory, University of Pavia, Pavia, Italy
| | - Valentina De Giorgis
- Department of Child Neurology and Psychiatry, IRCCS Mondino Foundation, Pavia, Italy
- Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy
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17
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Alex NS, Khan HR, Ramachandra SG, Medhamurthy R. Pregnancy-associated Steroid Effects on Insulin Sensitivity, Adipogenesis, and Lipogenesis: Role of Wnt/β-Catenin Pathway. J Endocr Soc 2023; 7:bvad076. [PMID: 37440965 PMCID: PMC10334487 DOI: 10.1210/jendso/bvad076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Indexed: 07/15/2023] Open
Abstract
Context The shift in maternal energy metabolism characteristic of pregnancy is thought to be driven by various hormonal changes, especially of ovarian and placental steroids. Imbalances in circulating estradiol (E2) and progesterone (P4) levels during this period are often associated with metabolic disturbances leading to the development of gestational diabetes mellitus (GDM). Since abnormalities in the Wnt pathway effector transcription factor 7-like 2 (TCF7L2) are commonly associated with the occurrence of GDM, we hypothesized that the canonical or β-catenin-dependent Wnt signaling pathway mediates the metabolic actions of E2 and P4. Objective Our study was aimed at elucidating the metabolic function of the steroids E2 and P4, and examining the role of the canonical Wnt signaling pathway in mediating the actions of these steroids. Methods The ovariectomized (OVX) rat was used as a model system to study the effect of known concentrations of exogenously administered E2 and P4. Niclosamide (Nic) was administered to block Wnt signaling. 3T3-L1 cells were used to analyze changes in differentiation in the presence of the steroids or niclosamide. Results In the present study, we observed that E2 enhanced insulin sensitivity and inhibited lipogenesis while P4 increased lipogenic gene expression-in 3T3-L1 adipocytes, and in adipose tissue and skeletal muscle of OVX rats when the dosage of E2 and P4 mimicked that of pregnancy. Both E2 and P4 were also found to upregulate Wnt signaling. Nic nhibited the steroid-mediated increase in Wnt signaling in adipocytes and OVX rats. The insulin-sensitizing and antilipogenic actions of E2 were found to be mediated by the canonical Wnt pathway, but the effects of P4 on lipogenesis appeared to be independent of it. Additionally, it was observed that inhibition of Wnt signaling by Nic hastened adipogenic differentiation, and the inhibitory effect of E2 on differentiation was prevented by Nic. Conclusion The findings presented in this study highlight the role of steroids and Wnt pathway in glucose and lipid metabolism and are relevant to understanding the pathophysiology of metabolic disorders arising from hormonal disturbances.
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Affiliation(s)
- Neethu Sara Alex
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bangalore, India
| | - Habibur Rahaman Khan
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bangalore, India
| | - Subbaraya Gudde Ramachandra
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bangalore, India
| | - Rudraiah Medhamurthy
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bangalore, India
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Saeedi F, Baqeri E, Bidokhti A, Moodi M, Sharifi F, Riahi SM. Clinical utility of lipid ratios as potential predictors of metabolic syndrome among the elderly population: Birjand Longitudinal Aging Study (BLAS). BMC Geriatr 2023; 23:403. [PMID: 37400781 DOI: 10.1186/s12877-023-04040-8] [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: 06/08/2022] [Accepted: 05/15/2023] [Indexed: 07/05/2023] Open
Abstract
BACKGROUND Elderly adults are at higher risk of developing metabolic syndrome (MetS). The present study aims to investigate the relationship between lipid ratios and MetS in the elderly population. METHODS This study was conducted on elderly population of Birjand during 2018-2019. The data of this study was driven from Birjand Longitudinal Aging Study (BLAS). The participants were selected based on multistage stratified cluster sampling. Patients were categorized into quartiles according to the lipid ratios (TG/HDL-C, LDL-C/HDL-C, non-HDL/HDL-C), and the relationship between lipid ratio quartiles and MetS was determined by Logistic Regression using Odds Ratio. Finally, the optimal cut-off for each lipid ratio in MetS diagnosis was calculated according to the Area Under the Curve (AUC). RESULTS This study included 1356 individuals, of whom 655 were men and 701 were women. In our study, the crude prevalence of MetS was 792 (58%), including 543 (77.5%) women and 249 (38%) men. Increasing trends were observed in quartiles of all lipid ratios for TC, LDL-C, TG, and DBP. TG/HDL was also the best lipid ratio to diagnose the MetS, based on NCEP ATP III criteria. One unit increased in level of TG/HDL resulted in 3.94 (OR: 3.94; 95%CI: 2.48-6.6) and 11.56 (OR: 11.56; 95%CI: 6.93-19.29) increasing risk of having MetS in quartile 3 and 4 compared to quartile 1, respectively. In men and women, the cutoff for TG/HDL was 3.5 and 3.0, respectively. CONCLUSIONS Our results showed that the TG/HDL-C is superior to the LDL-C/HDL-C and the non-HDL /HDL-C to predict MetS among the elderly adults.
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Affiliation(s)
- Farhad Saeedi
- Student Research Committee, Birjand University of Medical Sciences, Birjand, Iran
- Cardiovascular Diseases Research Center, Birjand University of Medical Sciences, Birjand, Iran
| | - Elnaz Baqeri
- Student Research Committee, Birjand University of Medical Sciences, Birjand, Iran
| | - Ali Bidokhti
- Cardiovascular Diseases Research Center, Birjand University of Medical Sciences, Birjand, Iran
| | - Mitra Moodi
- Social Determinants of Health Research Center, Birjand University of Medical Sciences, Birjand, Iran
| | - Farshad Sharifi
- Elderly Health Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Mohammad Riahi
- Cardiovascular Diseases Research Center, Department of Epidemiology and Biostatistics, School of Medicine, Birjand University of Medical Sciences, Birjand, Iran.
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19
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Alvariño R, Gil-Mouce C, Botana MA, Gegunde S, González-Jartín J, Vieytes MR, Alfonso A, Botana LM. Cyclophilin B serum levels present variations across the menstrual cycle. Sci Rep 2023; 13:10139. [PMID: 37349369 PMCID: PMC10287709 DOI: 10.1038/s41598-023-37322-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 06/20/2023] [Indexed: 06/24/2023] Open
Abstract
Cyclophilins are a family of chaperones involved in inflammation and cell death. Cyclophilin B is released by inflammatory cells and acts through the receptor CD147, affecting matrix metalloproteases release, whilst cyclophilin D participates in hypoxia-induced apoptosis. Previous studies related hormones like estradiol or prolactin to these proteins, however, their blood concentrations across the menstrual cycle have not been determined. In this work, eleven healthy women (BMI: 21.8 kg/m2) were monitored during a single menstrual cycle, making blood extractions at follicular, periovulatory and mid-luteal phases. Hormone and cyclophilin levels were determined in each phase. Statistical differences were determined by repeated measures ANOVA and estimated marginal means tests, or by Friedman and Dunn-Bonferroni tests for parametric and non-parametric variables, respectively. Bivariate correlations were evaluated with the Spearman coefficient. Cyclophilin B concentrations presented significant differences during the menstrual cycle (p = 0.012). The highest levels of this protein were found at follicular extraction, followed by a decrease at periovulatory phase and a slight increase at mid-luteal phase. Cyclophilin D showed the same profile, although statistical significance was not reached. This immunophilin exhibited a positive correlation with luteinizing hormone at periovulatory phase (r = 0.743, p = 0.009) and with follicle stimulating hormone at mid-luteal phase (r = 0.633, p = 0.036). This is the first study describing the changes in cyclophilin B concentrations across the menstrual cycle, as well as the association of luteinizing and follicle stimulating hormones with cyclophilin D. These results suggest a role of these proteins in the cyclic inflammatory events that affect female reproductive system that should be explored.
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Affiliation(s)
- Rebeca Alvariño
- Departamento de Farmacología, Facultad de Veterinaria, Universidad de Santiago de Compostela, 27002, Lugo, Spain
- Grupo Investigación Biodiscovery, IDIS, 27002, Lugo, Spain
| | - Cristina Gil-Mouce
- Departamento de Endocrinología y Nutrición, Hospital Universitario Lucus Augusti, 27002, Lugo, Spain
| | - Manuel A Botana
- Departamento de Endocrinología y Nutrición, Hospital Universitario Lucus Augusti, 27002, Lugo, Spain
| | - Sandra Gegunde
- Departamento de Farmacología, Facultad de Veterinaria, Universidad de Santiago de Compostela, 27002, Lugo, Spain
- Grupo Investigación Biodiscovery, IDIS, 27002, Lugo, Spain
| | - Jesús González-Jartín
- Departamento de Farmacología, Facultad de Veterinaria, Universidad de Santiago de Compostela, 27002, Lugo, Spain
- Grupo Investigación Biodiscovery, IDIS, 27002, Lugo, Spain
| | - Mercedes R Vieytes
- Grupo Investigación Biodiscovery, IDIS, 27002, Lugo, Spain
- Departamento de Fisiología, Facultad de Veterinaria, Universidad de Santiago de Compostela, 27002, Lugo, Spain
| | - Amparo Alfonso
- Departamento de Farmacología, Facultad de Veterinaria, Universidad de Santiago de Compostela, 27002, Lugo, Spain.
- Grupo Investigación Biodiscovery, IDIS, 27002, Lugo, Spain.
| | - Luis M Botana
- Departamento de Farmacología, Facultad de Veterinaria, Universidad de Santiago de Compostela, 27002, Lugo, Spain.
- Grupo Investigación Biodiscovery, IDIS, 27002, Lugo, Spain.
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20
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Yang Z, Wang YE, Kirschke CP, Stephensen CB, Newman JW, Keim NL, Cai Y, Huang L. Effects of a genetic variant rs13266634 in the zinc transporter 8 gene (SLC30A8) on insulin and lipid levels before and after a high-fat mixed macronutrient tolerance test in U.S. adults. J Trace Elem Med Biol 2023; 77:127142. [PMID: 36827808 DOI: 10.1016/j.jtemb.2023.127142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 02/02/2023] [Accepted: 02/17/2023] [Indexed: 02/21/2023]
Abstract
BACKGROUND The common C-allele of rs13266634 (c.973C>T or p.Arg325Trp) in SLC30A8 (ZNT8) is associated with increased risk of type 2 diabetes. While previous studies have examined the correlation of the variant with insulin and glucose metabolism, the effects of this variant on insulin and lipid responses after a lipid challenge in humans remain elusive. The goal of this study was to determine whether the C-allele had an impact on an individual's risk to metabolic syndromes in U.S. adults. METHOD We studied the genotypes of rs13266634 in 349 individuals aged between 18 and 65 y with BMI ranging from 18.5 to 45 kg/m2. The subjects were evaluated for insulin, glucose, HbA1c, ghrelin, and lipid profiles before and after a high-fat mixed macronutrient tolerance test (MMTT). RESULTS We found that the effects of variants rs13266634 on glucose and lipid metabolism were sex-dimorphic, greater impact on males than on females. Insulin incremental area under the curve (AUC) after MMTT was significantly decreased in men with the CC genotype (p < 0.05). Men with the CC genotype also had the lowest fasting non-esterified fatty acid (NEFA) concentrations. On the other hand, the TT genotype was associated with a slower triglyceride removal from the circulation in men after MMTT. The reduced triglyceride removal was also observed in subjects with BMI ≥ 30 carrying either the heterozygous or homozygous T-allele. Nevertheless, the SNP had little effect on fasting or postprandial blood glucose and cholesterol concentrations. CONCLUSION We conclude that the CC genotype negatively affects insulin response after MMTT while the T-allele may negatively influence lipolysis during fasting and postprandial blood triglyceride removal in men and obese subjects, a novel finding in this study.
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Affiliation(s)
- Zhongyue Yang
- Graduate Group of Nutritional Biology, Department of Nutrition, University of California at Davis, One Shields Ave., Davis, CA 95616, USA
| | - Yining E Wang
- USDA/ARS/Western Human Nutrition Research Center, 430 West Health Sciences Drive, Davis, CA 95616, USA
| | - Catherine P Kirschke
- USDA/ARS/Western Human Nutrition Research Center, 430 West Health Sciences Drive, Davis, CA 95616, USA
| | - Charles B Stephensen
- Graduate Group of Nutritional Biology, Department of Nutrition, University of California at Davis, One Shields Ave., Davis, CA 95616, USA; USDA/ARS/Western Human Nutrition Research Center, 430 West Health Sciences Drive, Davis, CA 95616, USA
| | - John W Newman
- Graduate Group of Nutritional Biology, Department of Nutrition, University of California at Davis, One Shields Ave., Davis, CA 95616, USA; USDA/ARS/Western Human Nutrition Research Center, 430 West Health Sciences Drive, Davis, CA 95616, USA
| | - Nancy L Keim
- Graduate Group of Nutritional Biology, Department of Nutrition, University of California at Davis, One Shields Ave., Davis, CA 95616, USA; USDA/ARS/Western Human Nutrition Research Center, 430 West Health Sciences Drive, Davis, CA 95616, USA
| | - Yimeng Cai
- Graduate Group of Nutritional Biology, Department of Nutrition, University of California at Davis, One Shields Ave., Davis, CA 95616, USA; Department of Pathology and Laboratory Medicine, University of California at Davis, 2805 50th Street, Sacramento, CA 95817, USA
| | - Liping Huang
- Graduate Group of Nutritional Biology, Department of Nutrition, University of California at Davis, One Shields Ave., Davis, CA 95616, USA; USDA/ARS/Western Human Nutrition Research Center, 430 West Health Sciences Drive, Davis, CA 95616, USA.
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21
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Guarnieri G, Iervolino M, Cavallone S, Unfer V, Vianello A. The "Asthma-Polycystic Ovary Overlap Syndrome" and the Therapeutic Role of Myo-Inositol. Int J Mol Sci 2023; 24:ijms24086959. [PMID: 37108123 PMCID: PMC10138395 DOI: 10.3390/ijms24086959] [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: 02/21/2023] [Revised: 04/03/2023] [Accepted: 04/07/2023] [Indexed: 04/29/2023] Open
Abstract
Asthma is a heterogeneous inflammatory disease characterized by abnormalities in immune response. Due to the inherent complexity of the disease and the presence of comorbidities, asthma control is often difficult to obtain. In asthmatic patients, an increased prevalence of irregular menstrual cycles, infertility, obesity, and insulin resistance has been reported. Given that these conditions are also common in patients with polycystic ovary syndrome (PCOS), we propose the definition of "asthma-PCOS overlap syndrome" to indicate a medical condition which shares characteristics of both diseases. The aim of this review is to analyze the links between asthma and PCOS and evaluate the therapeutic role of myo-inositol, a natural compound currently utilized in patients with PCOS, in the management of asthma patients.
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Affiliation(s)
- Gabriella Guarnieri
- Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padova, 35128 Padova, Italy
| | | | | | - Vittorio Unfer
- Systems Biology Group Laboratory, 00163 Rome, Italy
- The Experts Group on Inositol in Basic and Clinical Research (EGOI), 00161 Rome, Italy
| | - Andrea Vianello
- Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padova, 35128 Padova, Italy
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22
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Toor S, Yardley JE, Momeni Z. Type 1 Diabetes and the Menstrual Cycle: Where/How Does Exercise Fit in? INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:2772. [PMID: 36833469 PMCID: PMC9957258 DOI: 10.3390/ijerph20042772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 01/31/2023] [Accepted: 02/01/2023] [Indexed: 06/18/2023]
Abstract
Regular exercise is associated with substantial health benefits for individuals with type 1 diabetes (T1D). However, the fear of hypoglycemia (low blood glucose) due to activity-induced declines in blood glucose levels acts as a major barrier to partaking in exercise in this population. For females with T1D, hormonal fluctuations during the menstrual cycle and their effects on blood glucose levels can act as an additional barrier. The impact that these cyclic changes may have on blood glucose and insulin needs and the consequent risk of hypoglycemia during or after exercise are still unknown in this population. Therefore, in this narrative review, we gathered existing knowledge about the menstrual cycle in T1D and the effects of different cyclic phases on substrate metabolism and glucose response to exercise in females with T1D to increase knowledge and understanding around exercise in this underrepresented population. This increased knowledge in such an understudied area can help to better inform exercise guidelines for females with T1D. It can also play an important role in eliminating a significant barrier to exercise in this population, which has the potential to increase activity, improve mental health and quality of life, and decrease the risk of diabetes-related complications.
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Affiliation(s)
- Saru Toor
- Physical Activity and Diabetes Laboratory, Alberta Diabetes Institute, Edmonton, AB T6G 2E1, Canada
- Immunology and Infection Program, Department of Biological Sciences, University of Alberta, Edmonton, AB T6G 2E9, Canada
| | - Jane E. Yardley
- Physical Activity and Diabetes Laboratory, Alberta Diabetes Institute, Edmonton, AB T6G 2E1, Canada
- Augustana Faculty, University of Alberta, Camrose, AB T4V 2R3, Canada
- Faculty of Kinesiology, Sport, and Recreation, University of Alberta, Edmonton, AB T6G 2H9, Canada
- Women’s and Children’s Health Research Institute, University of Alberta, Edmonton, AB T6G 1C9, Canada
| | - Zeinab Momeni
- Physical Activity and Diabetes Laboratory, Alberta Diabetes Institute, Edmonton, AB T6G 2E1, Canada
- Augustana Faculty, University of Alberta, Camrose, AB T4V 2R3, Canada
- Women’s and Children’s Health Research Institute, University of Alberta, Edmonton, AB T6G 1C9, Canada
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23
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Garr Barry V, Chiang JL, Bowman KG, Johnson KD, Gower BA. Bioimpedance-Derived Membrane Capacitance: Clinically Relevant Sources of Variability, Precision, and Reliability. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 20:686. [PMID: 36613010 PMCID: PMC9819400 DOI: 10.3390/ijerph20010686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 12/23/2022] [Accepted: 12/26/2022] [Indexed: 06/17/2023]
Abstract
Membrane capacitance (CM), a bioimpedance-derived measure of cell membrane health, has been suggested as an indicator of health status. However, there are few published data to support its use in clinical settings. Hence, this study evaluated clinically relevant sources of variation, precision, and reliability of CM measurements. This longitudinal study included 60 premenopausal women. Sources of variability (e.g., demographics, body composition, serum measures, diet) were identified by stepwise regression. Precision and reliability were assessed by the coefficient of variation (CV), intraclass correlation coefficients (ICC), and technical error of the measurement (TEM) for intra-day (30 min apart) and inter-day measurements (7-14 days apart). Body composition, temperature, and metabolic activity were identified as sources of variability. CM measurements had high precision (CV = 0.42%) and high reliability for intra-day (ICC = 0.996) and inter-day (ICC = 0.959) measurements, independent of menstrual cycle and obesity status. Our results showed that CM measurements are sensitive to clinical factors and have high precision and reliability. The results of this study suggest that CM is sufficiently reliable for health status monitoring in conditions with variation in body composition, metabolic activity, or body temperature among premenopausal women.
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Affiliation(s)
- Valene Garr Barry
- Department of Obstetrics and Gynecology, Division of Clinical Research, School of Medicine in St. Louis, Washington University, St. Louis, MO 63108, USA
| | - Jasmine L. Chiang
- Department of Obstetrics and Gynecology, School of Medicine, The University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Kaylan G. Bowman
- Department of Nutrition Sciences, School of Health Professions, The University of Alabama at Birmingham; Birmingham, AL 35294, USA
| | - Kristina D. Johnson
- Department of Nutrition Sciences, School of Health Professions, The University of Alabama at Birmingham; Birmingham, AL 35294, USA
| | - Barbara A. Gower
- Department of Nutrition Sciences, School of Health Professions, The University of Alabama at Birmingham; Birmingham, AL 35294, USA
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Wang X, Liang Y, Liu Q, Cai J, Tang X, Liu S, Zhang J, Xu M, Wei C, Mo X, Wei Y, Lin Y, Huang S, Mai T, Tan D, Luo T, Gou R, Qin J, Zhang Z. Association of CYP19A1 Gene, Plasma Zinc, and Urinary Zinc with the Risk of Type 2 Diabetes Mellitus in a Chinese Population. Biol Trace Elem Res 2022:10.1007/s12011-022-03502-1. [PMID: 36441497 DOI: 10.1007/s12011-022-03502-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 11/19/2022] [Indexed: 11/30/2022]
Abstract
To explore the effects of CYP19A1 gene polymorphisms, plasma zinc, and urinary zinc levels and their interactions on type 2 diabetes mellitus (T2DM) in residents of Gongcheng County, Guangxi, China. The case-control study was used for the investing. The MassARRAY System was applied to genotype the CYP19A1 genes rs752760, rs10046, rs10459592, and rs700518 in 540 study subjects. Plasma and urinary zinc concentrations were measured by inductively coupled plasma mass spectrometry (ICP-MS). Conditional logistic regression showed that rs752760 and plasma zinc were associated with T2DM risks with ORs of 0.593 (95% CI: 0.371-0.948) and 0.563 (95% CI: 0.356-0.889), respectively. Unconditional logistic regression analysis showed an association between urinary zinc levels and the risk of T2DM as well, with an OR of 0.352 (95% CI: 0.212-0.585). The results of the multiplicative interaction model showed that the rs752760 T allele was associated with a significantly reduced risk of T2DM with moderate/low plasma zinc levels, with ORs of 0.340 (95% CI: 0.161-0.715) and 0.583 (95% CI: 0.346-0.981), respectively, and the rs752760 T allele was also associated with a significantly decreased risk of T2DM with moderate/low urinary zinc levels, with ORs of 0.358 (95% CI: 0.201-0.635) and 0.321 (95% CI: 0.183-0.562), respectively. CYP19A1 rs752760 T allele and moderate/low plasma/urinary zinc levels reduce the risk of T2DM.
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Affiliation(s)
- Xuexiu Wang
- Department of Environmental and Occupational Health, School of Public Health, Guangxi Medical University, Nanning, China
| | - Yujian Liang
- Department of Environmental and Occupational Health, School of Public Health, Guangxi Medical University, Nanning, China
| | - Qiumei Liu
- Department of Environmental and Occupational Health, School of Public Health, Guangxi Medical University, Nanning, China
| | - Jiansheng Cai
- Department of Environmental and Occupational Health, School of Public Health, Guangxi Medical University, Nanning, China
- Key Laboratory of Tumor Immunology and Microenvironmental Regulation, Guilin Medical University, Guilin, China
| | - Xu Tang
- Department of Environmental and Occupational Health, School of Public Health, Guangxi Medical University, Nanning, China
| | - Shuzhen Liu
- Department of Environmental and Occupational Health, School of Public Health, Guangxi Medical University, Nanning, China
| | - Junling Zhang
- Department of Environmental and Occupational Health, School of Public Health, Guangxi Medical University, Nanning, China
| | - Min Xu
- Department of Environmental and Occupational Health, School of Public Health, Guangxi Medical University, Nanning, China
| | - Chunmei Wei
- Department of Environmental and Occupational Health, School of Public Health, Guangxi Medical University, Nanning, China
| | - Xiaoting Mo
- Department of Environmental and Occupational Health, School of Public Health, Guangxi Medical University, Nanning, China
| | - Yanfei Wei
- Department of Environmental and Occupational Health, School of Public Health, Guangxi Medical University, Nanning, China
| | - Yinxia Lin
- Department of Environmental and Occupational Health, School of Public Health, Guangxi Medical University, Nanning, China
| | - Shenxiang Huang
- Department of Environmental and Occupational Health, School of Public Health, Guangxi Medical University, Nanning, China
| | - Tingyu Mai
- Department of Environmental Health and Occupational Medicine, School of Public Health, Guilin Medical University, Guilin, China
| | - Dechan Tan
- Department of Environmental Health and Occupational Medicine, School of Public Health, Guilin Medical University, Guilin, China
| | - Tingyu Luo
- Department of Environmental Health and Occupational Medicine, School of Public Health, Guilin Medical University, Guilin, China
| | - Ruoyu Gou
- Department of Environmental Health and Occupational Medicine, School of Public Health, Guilin Medical University, Guilin, China
| | - Jian Qin
- Department of Environmental and Occupational Health, School of Public Health, Guangxi Medical University, Nanning, China.
- Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning, China.
- Guangxi Key Laboratory of Environment and Health Research, Guangxi Medical University, Nanning, China.
- Key Laboratory of Longevity and Aging-Related Diseases of Chinese Ministry of Education, Guangxi Medical University, Nanning, China.
| | - Zhiyong Zhang
- Department of Environmental and Occupational Health, School of Public Health, Guangxi Medical University, Nanning, China.
- Department of Environmental Health and Occupational Medicine, School of Public Health, Guilin Medical University, Guilin, China.
- Guangxi Key Laboratory of Environmental Exposomics and Entire Lifecycle Health, Guilin Medical University, Guilin, China.
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Hu R, Tan J, Li Z, Wang L, Shi M, Li B, Liu M, Yuan X, He J, Wu X. Effect of dietary resveratrol on placental function and reproductive performance of late pregnancy sows. Front Nutr 2022; 9:1001031. [PMID: 36407549 PMCID: PMC9673905 DOI: 10.3389/fnut.2022.1001031] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 09/20/2022] [Indexed: 09/13/2024] Open
Abstract
Placental function is vital to the fetal growth of sows, and resveratrol (RES) can protect cells against oxidative stress, which is one of the major factors impairing placental function. This study aimed to investigate the effect of dietary resveratrol (RES) on placental function and reproductive performance during late pregnancy in a sow model from the aspects of oxidative stress, insulin resistance, and gut microbiota. A total of 26 hybrid pregnant sows (Landrace × Yorkshire) with similar parity were randomly allocated into two groups (n = 13) and fed with a basal diet or a diet containing 200 mg/kg of resveratrol from day 85 of gestation until parturition. The dietary supplementation of RES increased the litter weight at parturition by 12.53% (p = 0.145), with ameliorated insulin resistance (HOMA-IR), increased triglyceride (TG) levels, and decreased interleukin (IL)-1β and IL-6 levels in serum (p < 0.05). Moreover, resveratrol increased the placental vascular density (p < 0.05) with the enhanced expression of nutrient transporter genes (SLC2A1 and SLC2A3) and antioxidant genes, such as superoxide dismutase 2 (SOD2) and heme oxygenase-1 (HO-1) but declined the expression of inflammatory genes, such as IL-1β and IL-6 (p < 0.05). The characterization of the fecal microbiota revealed that resveratrol decreased the relative abundance of the Christensensllaceae R-7 group and Ruminococcaceae UCG-008 (p < 0.05), which had a positive linear correlation with the expression of IL-1β and IL-6 (p < 0.05), but had a negative linear correlation with the expression of SOD2, HO-1, SLC2A1, and SCL2A3 genes (p < 0.05). These data demonstrated that dietary supplementation with resveratrol can improve placental function with ameliorated insulin resistance, oxidative stress, and inflammation potentially by regulating Ruminococcaceae UCG-008 and the Christensensllaceae R-7 group in sows.
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Affiliation(s)
- Ruizhi Hu
- Hunan Collaborative Innovation Center for Utilization of Botanical Functional Ingredients, College of Animal Science and Technology, Hunan Agricultural University, Changsha, China
| | - Jijun Tan
- Hunan Collaborative Innovation Center for Utilization of Botanical Functional Ingredients, College of Animal Science and Technology, Hunan Agricultural University, Changsha, China
| | - Zhanfeng Li
- Hunan Collaborative Innovation Center for Utilization of Botanical Functional Ingredients, College of Animal Science and Technology, Hunan Agricultural University, Changsha, China
| | - Long Wang
- Hunan Collaborative Innovation Center for Utilization of Botanical Functional Ingredients, College of Animal Science and Technology, Hunan Agricultural University, Changsha, China
| | - Mingkun Shi
- Hunan Collaborative Innovation Center for Utilization of Botanical Functional Ingredients, College of Animal Science and Technology, Hunan Agricultural University, Changsha, China
| | - Baizhen Li
- Hunan Collaborative Innovation Center for Utilization of Botanical Functional Ingredients, College of Animal Science and Technology, Hunan Agricultural University, Changsha, China
| | - Ming Liu
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, China
| | - Xupeng Yuan
- Hunan Xinguang'an Agricultural Husbandry Co., Ltd., Changsha, China
| | - Jianhua He
- Hunan Collaborative Innovation Center for Utilization of Botanical Functional Ingredients, College of Animal Science and Technology, Hunan Agricultural University, Changsha, China
| | - Xiaosong Wu
- Hunan Collaborative Innovation Center for Utilization of Botanical Functional Ingredients, College of Animal Science and Technology, Hunan Agricultural University, Changsha, China
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Corosolic acid improves glucose and insulin responses in middle-aged men with impaired fasting glucose: A randomized, double-blinded, placebo-controlled crossover trial. J Funct Foods 2022. [DOI: 10.1016/j.jff.2022.105256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Tatulashvili S, Baptiste Julla J, Sritharan N, Rezgani I, Levy V, Bihan H, Riveline JP, Cosson E. Ambulatory Glucose Profile According to Different Phases of the Menstrual Cycle in Women Living With Type 1 Diabetes. J Clin Endocrinol Metab 2022; 107:2793-2800. [PMID: 35869507 DOI: 10.1210/clinem/dgac443] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Indexed: 02/07/2023]
Abstract
CONTEXT Some women living with type 1 diabetes complain of changes in glucose values according to the different phases of menstruation. OBJECTIVE To evaluate this variability through continuous glucose monitoring (CGM) data in type 1 diabetes patients. DESIGN Observational study. SETTING Ambulatory data, recruitment in 2 centers in the Paris region. PATIENTS Twenty-four women with type 1 diabetes having spontaneous menstrual cycles. INTERVENTION Collection of CGM data for 62 spontaneous menstrual cycles, with evaluation of five 3-day phases during each cycle: (1) early follicular (menstruations), (2) mid-follicular, (3) peri-ovulatory, (4) mid-luteal, and (5) late luteal. MAIN OUTCOME MEASURE Time in range (TIR, prespecified). RESULTS TIR decreased for each consecutive phase (61 ± 18%; 59 ± 18%; 59 ± 20%; 57 ± 18%; and 55 ± 20%, P = 0.02). The linear mixed model highlighted a decrease in TIR in the mid-luteal (P = 0.03) and late luteal (P < 0.001) phases compared with the early follicular phase. Time above range was significantly higher during the late luteal phase than the early follicular phase (P = 0.003). Time below range was significantly higher during the mid-follicular phase than in the early follicular phase. CONCLUSION In most of the study population, glucose levels rose linearly throughout the menstrual cycle, reaching a maximum in the late luteal phase. A sharp decrease was seen for most participants at the beginning of menstrual bleeding. This should be taken into consideration in daily care of type 1 diabetes patients to avoid hypoglycemia.
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Affiliation(s)
- Sopio Tatulashvili
- AP-HP, Endocrinology, Diabetes and Metabolic Diseases Unit, Avicenne Hospital, SMBH Paris 13, 93000 Bobigny, France
- Université Paris 13, Equipe de Recherche en Epidémiologie Nutritionnelle (EREN), Centre d'Epidémiologie et Statistiques Paris Nord, Inserm U1153, Inra U1125, Cnam, COMUE Sorbonne Paris Cité, F-93017, Bobigny, France
| | - Jean Baptiste Julla
- AP-HP, Endocrinology and Diabetes Unit, Lariboisiere Hospital, University of Paris-Cité, 75010 Paris, France
- Unite INSERM U1151 Immunity and Metabolism in Diabetes, ImMeDiab Team, Institut Necker Enfants Malades, and Universite de Paris, Paris 75015, France
| | - Nanthara Sritharan
- AP-HP, Clinical Research Unit, Avicenne Hospital, SMBH Paris 13, 93000 Bobigny, France
| | - Imen Rezgani
- AP-HP, Endocrinology, Diabetes and Metabolic Diseases Unit, Avicenne Hospital, SMBH Paris 13, 93000 Bobigny, France
| | - Vincent Levy
- AP-HP, Clinical Research Unit, Avicenne Hospital, SMBH Paris 13, 93000 Bobigny, France
| | - Helene Bihan
- AP-HP, Endocrinology, Diabetes and Metabolic Diseases Unit, Avicenne Hospital, SMBH Paris 13, 93000 Bobigny, France
| | - Jean-Pierre Riveline
- AP-HP, Endocrinology and Diabetes Unit, Lariboisiere Hospital, University of Paris-Cité, 75010 Paris, France
- Unite INSERM U1151 Immunity and Metabolism in Diabetes, ImMeDiab Team, Institut Necker Enfants Malades, and Universite de Paris, Paris 75015, France
| | - Emmanuel Cosson
- AP-HP, Endocrinology, Diabetes and Metabolic Diseases Unit, Avicenne Hospital, SMBH Paris 13, 93000 Bobigny, France
- Université Paris 13, Equipe de Recherche en Epidémiologie Nutritionnelle (EREN), Centre d'Epidémiologie et Statistiques Paris Nord, Inserm U1153, Inra U1125, Cnam, COMUE Sorbonne Paris Cité, F-93017, Bobigny, France
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Xu L, Yuan Y, Che Z, Tan X, Wu B, Wang C, Xu C, Xiao J. The Hepatoprotective and Hepatotoxic Roles of Sex and Sex-Related Hormones. Front Immunol 2022; 13:939631. [PMID: 35860276 PMCID: PMC9289199 DOI: 10.3389/fimmu.2022.939631] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 06/13/2022] [Indexed: 12/18/2022] Open
Abstract
Most liver diseases, including acute liver injury, drug-induced liver injury, viral hepatitis, metabolic liver diseases, and end-stage liver diseases, are strongly linked with hormonal influences. Thus, delineating the clinical manifestation and underlying mechanisms of the “sexual dimorphism” is critical for providing hints for the prevention, management, and treatment of those diseases. Whether the sex hormones (androgen, estrogen, and progesterone) and sex-related hormones (gonadotrophin-releasing hormone, luteinizing hormone, follicle-stimulating hormone, and prolactin) play protective or toxic roles in the liver depends on the biological sex, disease stage, precipitating factor, and even the psychiatric status. Lifestyle factors, such as obesity, alcohol drinking, and smoking, also drastically affect the involving mechanisms of those hormones in liver diseases. Hormones deliver their hepatic regulatory signals primarily via classical and non-classical receptors in different liver cell types. Exogenous sex/sex-related hormone therapy may serve as a novel strategy for metabolic liver disease, cirrhosis, and liver cancer. However, the undesired hormone-induced liver injury should be carefully studied in pre-clinical models and monitored in clinical applications. This issue is particularly important for menopause females with hormone replacement therapy (HRT) and transgender populations who want to receive gender-affirming hormone therapy (GAHT). In conclusion, basic and clinical studies are warranted to depict the detailed hepatoprotective and hepatotoxic mechanisms of sex/sex-related hormones in liver disease. Prolactin holds a promising perspective in treating metabolic and advanced liver diseases.
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Affiliation(s)
- Linlin Xu
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yuan Yuan
- Clinical Medicine Research Institute, Department of Metabolic and Bariatric Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Zhaodi Che
- Clinical Medicine Research Institute, Department of Metabolic and Bariatric Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Xiaozhi Tan
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Bin Wu
- Department of Gastroenterology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Cunchuan Wang
- Clinical Medicine Research Institute, Department of Metabolic and Bariatric Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Chengfang Xu
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- *Correspondence: Chengfang Xu, ; Jia Xiao,
| | - Jia Xiao
- Clinical Medicine Research Institute, Department of Metabolic and Bariatric Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, China
- *Correspondence: Chengfang Xu, ; Jia Xiao,
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Maury-Sintjago E, Rodríguez-Fernández A, Parra-Flores J, Ruíz-De la Fuente M. Obese Women Have a High Carbohydrate Intake without Changes in the Resting Metabolic Rate in the Luteal Phase. Nutrients 2022; 14:1997. [PMID: 35631136 PMCID: PMC9147294 DOI: 10.3390/nu14101997] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 05/02/2022] [Accepted: 05/03/2022] [Indexed: 02/07/2023] Open
Abstract
Hormonal changes are caused by the menstrual cycle phases, which influence resting metabolic rate and eating behavior. The aim of the study was to determine resting metabolic rate (RMR) and its association with dietary intake according to the menstrual cycle phase in lean and obese Chilean women. This cross-sectional analytical study included 30 adult women (15 lean and 15 with obesity). Body composition was measured with a tetrapolar bioelectrical impedance meter. Nutritional status was determined by adiposity. A 24-h recall of three nonconsecutive days verifies dietary intake. The RMR was measured by indirect calorimetry. All measurements were performed in both the follicular and luteal phases of the menstrual cycle. Statistical analyses were performed with STATA software at a significance level, which was α = 0.05. The RMR (β = 121.6 kcal/d), temperature (β = 0.36 °C), calorie intake (β = 317.1 kcal/d), and intake of lipids (β = 13.8 g/d) were associated with the luteal phase in lean women. Only extracellular water (β = 1.11%) and carbohydrate consumption (β = 45.2 g/d) were associated in women with obesity. Lean women showed increased RMR, caloric intake, and lipid intake during the luteal phase. For women with obesity, carbohydrate intake increased but not RMR.
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Affiliation(s)
- Eduard Maury-Sintjago
- Department of Nutrition and Public Health, Universidad del Bío-Bío, Chillan 3780000, Chile; (E.M.-S.); (A.R.-F.); (J.P.-F.)
- GABO Grupo de Investigación en Auxología, Bioantropología y Ontogenia, FACSA, Universidad del Bío-Bío, Chillan 3780000, Chile
| | - Alejandra Rodríguez-Fernández
- Department of Nutrition and Public Health, Universidad del Bío-Bío, Chillan 3780000, Chile; (E.M.-S.); (A.R.-F.); (J.P.-F.)
- GABO Grupo de Investigación en Auxología, Bioantropología y Ontogenia, FACSA, Universidad del Bío-Bío, Chillan 3780000, Chile
| | - Julio Parra-Flores
- Department of Nutrition and Public Health, Universidad del Bío-Bío, Chillan 3780000, Chile; (E.M.-S.); (A.R.-F.); (J.P.-F.)
- GABO Grupo de Investigación en Auxología, Bioantropología y Ontogenia, FACSA, Universidad del Bío-Bío, Chillan 3780000, Chile
| | - Marcela Ruíz-De la Fuente
- Department of Nutrition and Public Health, Universidad del Bío-Bío, Chillan 3780000, Chile; (E.M.-S.); (A.R.-F.); (J.P.-F.)
- GABO Grupo de Investigación en Auxología, Bioantropología y Ontogenia, FACSA, Universidad del Bío-Bío, Chillan 3780000, Chile
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Mechanistic Investigation of GHS-R Mediated Glucose-Stimulated Insulin Secretion in Pancreatic Islets. Biomolecules 2022; 12:biom12030407. [PMID: 35327599 PMCID: PMC8945998 DOI: 10.3390/biom12030407] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/19/2022] [Accepted: 02/27/2022] [Indexed: 02/07/2023] Open
Abstract
Ghrelin receptor, a growth hormone secretagogue receptor (GHS-R), is expressed in the pancreas. Emerging evidence indicates that GHS-R is involved in the regulation of glucose-stimulated insulin secretion (GSIS), but the mechanism by which GHS-R regulates GSIS in the pancreas is unclear. In this study, we investigated the role of GHS-R on GSIS in detail using global Ghsr−/− mice (in vivo) and Ghsr-ablated pancreatic islets (ex vivo). GSIS was attenuated in both Ghsr−/− mice and Ghsr-ablated islets, while the islet morphology was similar between WT and Ghsr−/− mice. To elucidate the mechanism underpinning Ghsr-mediated GSIS, we investigated the key steps of the GSIS signaling cascade. The gene expression of glucose transporter 2 (Glut2) and the glucose-metabolic intermediate—glucose-6-phosphate (G6P) were reduced in Ghsr-ablated islets, supporting decreased glucose uptake. There was no difference in mitochondrial DNA content in the islets of WT and Ghsr−/− mice, but the ATP/ADP ratio in Ghsr−/− islets was significantly lower than that of WT islets. Moreover, the expression of pancreatic and duodenal homeobox 1 (Pdx1), as well as insulin signaling genes of insulin receptor (IR) and insulin receptor substrates 1 and 2 (IRS1/IRS2), was downregulated in Ghsr−/− islets. Akt is the key mediator of the insulin signaling cascade. Concurrently, Akt phosphorylation was reduced in the pancreas of Ghsr−/− mice under both insulin-stimulated and homeostatic conditions. These findings demonstrate that GHS-R ablation affects key components of the insulin signaling pathway in the pancreas, suggesting the existence of a cross-talk between GHS-R and the insulin signaling pathway in pancreatic islets, and GHS-R likely regulates GSIS via the Akt-Pdx1-GLUT2 pathway.
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Sridhar VS, Yau K, Benham JL, Campbell DJT, Cherney DZI. Sex and Gender Related Differences in Diabetic Kidney Disease. Semin Nephrol 2022; 42:170-184. [PMID: 35718364 DOI: 10.1016/j.semnephrol.2022.04.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Diversity in sex and gender are important considerations in the pathogenesis, prognostication, research, and management of diabetic kidney disease (DKD). Sex and gender differences in the disease risk, disease-specific mechanisms, and outcomes in DKD may be attributed to biological differences between males and females at the cellular and tissue level, inconsistencies in the diagnostic and assessment tools used in chronic kidney disease and DKD, as well societal differences in the way men, women, and gender-diverse individuals self-manage and interact with health care systems. This review outlines key considerations related to the impact of sex on DKD, specifically elaborating on how they contribute to observed differences in disease epidemiology, pathogenesis, and treatment strategies. We also highlight the effect of gender on DKD progression and care.
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Affiliation(s)
- Vikas S Sridhar
- Division of Nephrology, Department of Medicine, University Health Network, Toronto, Ontario, Canada; Department of Medicine, University of Toronto, Toronto, Ontario, Canada; Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta
| | - Kevin Yau
- Division of Nephrology, Department of Medicine, University Health Network, Toronto, Ontario, Canada; Department of Medicine, University of Toronto, Toronto, Ontario, Canada; Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta; Department of Cardiac Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta
| | - Jamie L Benham
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta; Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Cardiac Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta
| | - David J T Campbell
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta; Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Cardiac Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta.
| | - David Z I Cherney
- Division of Nephrology, Department of Medicine, University Health Network, Toronto, Ontario, Canada; Department of Medicine, University of Toronto, Toronto, Ontario, Canada; Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta; Department of Cardiac Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta
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Matta RA, AbdElftah ME, Essawy MG, Saedii AA. Interplay of serum hepcidin with female sex hormones, metabolic syndrome, and abdominal fat distribution among premenopausal and postmenopausal women. THE EGYPTIAN JOURNAL OF INTERNAL MEDICINE 2022. [DOI: 10.1186/s43162-022-00098-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background and purpose
Hepcidin is the central regulatory molecule of systemic iron homeostasis. Serum ferritin, insulin resistance (IR) and metabolic syndrome (MetS), female sex hormones, and abdominal fat distribution are related to each other and all are linked to menopausal state. Our study was the first to assess the impact of these parameters on hepcidin level among premenopausal women (group I) during the early follicular phase (group I-F) and mid-luteal-phase (group I-L) of the same reproductive cycle and among postmenopausal women (group II). Serum iron parameters, estrogen, progesterone and hepcidin, and plasma insulin were assessed. Abdominal subcutaneous fat (SCF) and peritoneal visceral fat (PVF) thickness were measured by unenhanced- CT. Group I and group II were divided into MetS and non-MetS subgroups.
Results
The entire group II and MetS-stratified subgroups had significant higher hepcidin level than corresponding group I-F and group I-L. Group I-L had significant higher hepcidin than group I-F. Among group I-F, group I-L, and group II, MetS subgroups had higher hepcidin but not hepcidin/ ferritin ratio (H/F) than corresponding non-MetS; and hepcidin had positive correlations with ferritin, insulin, IR, and SCF. In group I-F and group II, hepcidin had positive correlations with estrogen and progesterone; hepcidin levels increase significantly and linearly with increasing number of MetS features; and cut off values of hepcidin for prediction of MetS were 5.8 ≥ and ≥ 10.3 ng/ml respectively. Main contributors to hepcidin were iron and ferritin in all groups, SCF and progesterone in group I-F, and insulin, progesterone, and MetS in group II. H/F ratio was higher in group II.
Conclusion
Postmenopausal state (postMS), MetS, and luteal phase are independently associated with high hepcidin level. Serum iron parameters (iron and ferritin) as main regulators of hepcidin are preserved regardless of menopausal state. Its regulation differs based on menopausal state: IR, MetS, and progesterone in postMS meanwhile abdominal SCF and progesterone in premenopausal states. Despite positive associations of estrogen and progesterone with hepcidin, they do not explain its higher level in postMS. Hepcidin levels linearly increase with number of Mets feature and it had high sensitivity for diagnosis of MetS.
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Saito M, Okada Y, Torimoto K, Tanaka Y. [A Case of Reactive Hypoglycemia Exacerbated Before Menstruation Improved by the Use of Continuous Glucose Monitoring]. J UOEH 2022; 44:301-306. [PMID: 36089349 DOI: 10.7888/juoeh.44.301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
A 40-year-old female patient was referred to our department with a complaint of postprandial hypoglycemia. We performed a 75g oral glucose tolerance test, and the patient was diagnosed as having impaired glucose tolerance with a 1-hour blood glucose of 245 mg/dl and a 2-hour blood glucose of 196 mg/dl. The patient also showed hypoglycemia with a 6-hour blood glucose of 46 mg/dl, and delayed hypersecretion of insulin, which was diagnosed as reactive hypoglycemia. The patient was diagnosed as having reactive hypoglycemia with delayed hypersecretion of insulin. She was given dietary guidance to avoid simple carbohydrates, and voglibose 0.6 mg was started for glucose intolerance and reactive hypoglycemia. The frequency of hypoglycemic symptoms decreased for a while, but gradually increased again. An interview revealed that the frequency of hypoglycemia was high at 2-3 days before menstruation, and Flash Glucose Monitoring (FGM) was applied to check the blood glucose fluctuation before and after menstruation. Her postprandial hyperglycemia worsened with FGM, and reactive hypoglycemia appeared 3 days before menstruation, while postprandial hyperglycemia improved and reactive hypoglycemia disappeared 4 days after menstruation. The frequency of hypoglycemia was reduced by instructing the patient to take voglibose before menses and to eat a supplementary meal after lunch a few days before menses. There have been no reports on the evaluation of reactive hypoglycemia exacerbated before menstruation by FGM. The menstrual cycle should be considered in the diagnosis, evaluation, and treatment of reactive hypoglycemia.
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Affiliation(s)
- Momo Saito
- First Department of Internal Medicine, School of Medicine, University of Occupational and Enviromental Health, Japan
| | - Yosuke Okada
- First Department of Internal Medicine, School of Medicine, University of Occupational and Enviromental Health, Japan
| | - Keiichi Torimoto
- First Department of Internal Medicine, School of Medicine, University of Occupational and Enviromental Health, Japan
| | - Yoshiya Tanaka
- First Department of Internal Medicine, School of Medicine, University of Occupational and Enviromental Health, Japan
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MacGregor KA, Rodriguez-Sanchez N, Di Virgilio TG, Barwell ND, Gallagher IJ, Moran CN. Changes in adipose tissue microRNA expression across the menstrual cycle in regularly menstruating females: a pilot study. Physiol Genomics 2022; 54:1-10. [PMID: 34796732 DOI: 10.1152/physiolgenomics.00088.2021] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Cyclical changes in hormone profiles across the menstrual cycle are associated with alterations in metabolic control. MicroRNAs (miRNAs) contribute to regulating metabolic control, including adipose tissue metabolism. How fluctuations in hormonal profiles across the menstrual cycle affect adipose tissue miRNA expression remains unknown. Eleven healthy, regularly menstruating females underwent four sampling visits across their menstrual cycle. Subcutaneous abdominal adipose tissue and venous blood samples were collected at each sampling visit. Luteinizing hormone (LH) tests, calendar counting, and serum hormone concentrations were used to determine menstrual cycle phases: early-follicular (EF), late-follicular (LF), postovulatory (PO), and midluteal (ML). Serum follicle-stimulating hormone, LH, estrogen, progesterone, and testosterone were determined using multiplex magnetic bead panels and enzyme-linked immunosorbent assays. Global adipose tissue miRNA expression levels were determined via microarray in a subset of participants (n = 8) and 17 candidate miRNAs were validated by RT-qPCR in the whole cohort (n = 11). Global analysis of adipose tissue miRNA expression identified 33 miRNAs significantly altered across the menstrual cycle; however, no significant differences remained after correcting for multiple testing (P > 0.05). RT-qPCR analysis of candidate miRNAs revealed miR-497-5p expression was significantly altered across the menstrual cycle ([Formula: see text] = 0.18, P = 0.03); however, post hoc tests did not reveal any significant differences between menstrual cycle phases (P > 0.05). miR-30c-5p was associated with testosterone concentration (R2 = 0.13, P = 0.033). These pilot data indicate differences in adipose tissue miRNAs in healthy women across the menstrual cycle and a weak association with ovarian hormones. Further research in larger sample sizes is required to confirm regulation of miRNA expression across the menstrual cycle.
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Affiliation(s)
- Kirstin A MacGregor
- Physiology, Exercise and Nutrition Research Group, University of Stirling, Stirling, United Kingdom
| | - Nidia Rodriguez-Sanchez
- Physiology, Exercise and Nutrition Research Group, University of Stirling, Stirling, United Kingdom
| | - Thomas G Di Virgilio
- Physiology, Exercise and Nutrition Research Group, University of Stirling, Stirling, United Kingdom
| | - Nick D Barwell
- Department of Diabetes and Endocrinology, Forth Valley Royal Hospital, Larbert, United Kingdom
| | - Iain J Gallagher
- Physiology, Exercise and Nutrition Research Group, University of Stirling, Stirling, United Kingdom
| | - Colin N Moran
- Physiology, Exercise and Nutrition Research Group, University of Stirling, Stirling, United Kingdom
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The Effects of Omega-3 Supplementation on Resting Metabolic Rate: A Systematic Review and Meta-Analysis of Clinical Trials. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:6213035. [PMID: 34976098 PMCID: PMC8716205 DOI: 10.1155/2021/6213035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Accepted: 11/14/2021] [Indexed: 02/08/2023]
Abstract
Background It is uncertain if omega-3 polyunsaturated fatty acids are associated with increase in resting metabolic rate (RMR) in adults. Objective The aim of the present study was to evaluate the overall effects of omega-3 on RMR. Methods Both PubMed and Scopus libraries were searched up to April 2021. Study quality was assessed using the Jadad scale. Random- and fixed-effects models were utilized in order to obtain pooled estimates of omega-3 supplementation impacts on RMR, using weight mean difference (WMD). Results Seven studies including a total of 245 participants were included. There was significantly higher FFM-adjusted RMR in the intervention group than the control group (WMD: 26.666 kcal/kg/day, 95% CI: 9.010 to 44.322, p=0.003). Study quality showed that four of seven included studies were of high quality. However, there was no significant difference in results in the subgroup analysis according to the quality of studies. Subgroup analyses revealed significant changes for sex (for women: WMD = 151.793 kcal/day, 95% CI = 62.249 to 241.337, p=0.001) and BMI (for BMI > 25: WMD = 82.208 kcal/day, 95% CI = 0.937 to 163.480, p=0.047). Influence analysis indicated no outlier among inclusions. Conclusion The current study depicted that omega-3 polyunsaturated acids can significantly increase RMR in adults. However, further assessments of omega-3 supplementation therapy are critical to monitor its long-term outcomes and potential clinical application.
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Hudak S, Huber P, Lamprinou A, Fritsche L, Stefan N, Peter A, Birkenfeld AL, Fritsche A, Heni M, Wagner R. Reproducibility and discrimination of different indices of insulin sensitivity and insulin secretion. PLoS One 2021; 16:e0258476. [PMID: 34679116 PMCID: PMC8549015 DOI: 10.1371/journal.pone.0258476] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 09/24/2021] [Indexed: 01/20/2023] Open
Abstract
AIMS Insulin sensitivity and insulin secretion can be estimated by multiple indices from fasting blood samples or blood samples obtained during oral glucose tolerance tests. The test-retest reliability of these indices in repeated measurements within the same individuals can strongly vary. METHODS We analyzed data of persons without diabetes who underwent two repeated OGTTs. For each measurement pair, we calculated multiple commonly used indices for the assessment of insulin secretion and insulin sensitivity. We then evaluated the coefficient of variation (standard deviation/mean) and discriminant ratio for each index. RESULTS 89 persons underwent two OGTTs with a median interval of 86 days (IQR 64-249). Among indices of insulin sensitivity derived from fasting blood samples, the revised quantitative insulin sensitivity check index had the smallest coefficient of variation (2.8 ± 2.1%) whereas the C-peptide based homeostasis model assessment 2 had the highest discriminant ratio (1.97 (1.65-2.39)). As for insulin sensitivity indices that are based on OGTT, the oral glucose insulin sensitivity index had the smallest coefficient of variation (6.5 ± 5.1%). The highest discriminant ratio was found for the non-esterified fatty acids-based insulin sensitivity index (NEFA-ISI, 2.70 (2.30-3.22)). For the assessment of insulin secretion from fasting variables, the lowest mean coefficient of variation was found for C-peptide based homeostasis model assessment 2 beta with 10.8 ± 8% and the highest discriminant ratio for the C-peptide / Glucose-Ratio (2.18 (1.84-2.63)). Among indices assessing insulin secretion from an OGTT, the lowest coefficient of variation was found for the ratio of the areas under the C-peptide and glucose curves from 0 to 120 minutes with 11.3 ± 9.7%. CONCLUSION The data reveal large differences in the reproducibility and the discrimination capability of different indices that assess insulin sensitivity or insulin secretion. Our findings can aid the selection of an appropriate index in clinical studies.
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Affiliation(s)
- Sarah Hudak
- Division of Endocrinology, Diabetology and Nephrology, Department of Internal Medicine, University of Tuebingen, Tuebingen, Baden-Wuerttemberg, Germany
- Institute for Diabetes Research and Metabolic Diseases (IDM), Helmholtz Center Munich, University of Tuebingen, Tuebingen, Baden-Wuerttemberg, Germany
- German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany
| | - Philipp Huber
- Division of Endocrinology, Diabetology and Nephrology, Department of Internal Medicine, University of Tuebingen, Tuebingen, Baden-Wuerttemberg, Germany
- Institute for Diabetes Research and Metabolic Diseases (IDM), Helmholtz Center Munich, University of Tuebingen, Tuebingen, Baden-Wuerttemberg, Germany
- German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany
| | - Apostolia Lamprinou
- Division of Endocrinology, Diabetology and Nephrology, Department of Internal Medicine, University of Tuebingen, Tuebingen, Baden-Wuerttemberg, Germany
- Institute for Diabetes Research and Metabolic Diseases (IDM), Helmholtz Center Munich, University of Tuebingen, Tuebingen, Baden-Wuerttemberg, Germany
- German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany
| | - Louise Fritsche
- Institute for Diabetes Research and Metabolic Diseases (IDM), Helmholtz Center Munich, University of Tuebingen, Tuebingen, Baden-Wuerttemberg, Germany
- German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany
| | - Norbert Stefan
- Division of Endocrinology, Diabetology and Nephrology, Department of Internal Medicine, University of Tuebingen, Tuebingen, Baden-Wuerttemberg, Germany
- Institute for Diabetes Research and Metabolic Diseases (IDM), Helmholtz Center Munich, University of Tuebingen, Tuebingen, Baden-Wuerttemberg, Germany
- German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany
| | - Andreas Peter
- Institute for Diabetes Research and Metabolic Diseases (IDM), Helmholtz Center Munich, University of Tuebingen, Tuebingen, Baden-Wuerttemberg, Germany
- German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany
- Department for Diagnostic Laboratory Medicine, Institute for Clinical Chemistry and Pathobiochemistry, University Hospital Tuebingen, Tuebingen, Baden-Wuerttemberg, Germany
| | - Andreas L. Birkenfeld
- Division of Endocrinology, Diabetology and Nephrology, Department of Internal Medicine, University of Tuebingen, Tuebingen, Baden-Wuerttemberg, Germany
- Institute for Diabetes Research and Metabolic Diseases (IDM), Helmholtz Center Munich, University of Tuebingen, Tuebingen, Baden-Wuerttemberg, Germany
- German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany
| | - Andreas Fritsche
- Division of Endocrinology, Diabetology and Nephrology, Department of Internal Medicine, University of Tuebingen, Tuebingen, Baden-Wuerttemberg, Germany
- Institute for Diabetes Research and Metabolic Diseases (IDM), Helmholtz Center Munich, University of Tuebingen, Tuebingen, Baden-Wuerttemberg, Germany
- German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany
| | - Martin Heni
- Division of Endocrinology, Diabetology and Nephrology, Department of Internal Medicine, University of Tuebingen, Tuebingen, Baden-Wuerttemberg, Germany
- Institute for Diabetes Research and Metabolic Diseases (IDM), Helmholtz Center Munich, University of Tuebingen, Tuebingen, Baden-Wuerttemberg, Germany
- German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany
- Department for Diagnostic Laboratory Medicine, Institute for Clinical Chemistry and Pathobiochemistry, University Hospital Tuebingen, Tuebingen, Baden-Wuerttemberg, Germany
| | - Robert Wagner
- Division of Endocrinology, Diabetology and Nephrology, Department of Internal Medicine, University of Tuebingen, Tuebingen, Baden-Wuerttemberg, Germany
- Institute for Diabetes Research and Metabolic Diseases (IDM), Helmholtz Center Munich, University of Tuebingen, Tuebingen, Baden-Wuerttemberg, Germany
- German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany
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MacGregor KA, Gallagher IJ, Moran CN. Relationship Between Insulin Sensitivity and Menstrual Cycle Is Modified by BMI, Fitness, and Physical Activity in NHANES. J Clin Endocrinol Metab 2021; 106:2979-2990. [PMID: 34111293 PMCID: PMC8475204 DOI: 10.1210/clinem/dgab415] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Indexed: 11/25/2022]
Abstract
CONTEXT There is evidence demonstrating variation in insulin sensitivity across the menstrual cycle. However, to date, research has yielded inconsistent results. OBJECTIVE This study investigated variation in insulin sensitivity across the menstrual cycle and associations with body mass index (BMI), physical activity, and cardiorespiratory fitness (CRF). METHODS Data from 1906 premenopausal women in NHANES cycles 1999 to 2006 were analyzed. Menstrual cycle day was assessed using questionnaire responses recording days since last period. Rhythmic variation of plasma glucose, triglycerides, and insulin, homeostatic model of insulin resistance (HOMA-IR), and adipose tissue insulin resistance index (ADIPO-IR) across the menstrual cycle were analyzed using cosinor rhythmometry. Participants were assigned low or high categories of BMI, physical activity, and CRF, and category membership included in cosinor models as covariates. RESULTS Rhythmicity was demonstrated by a significant cosine fit for glucose (P = .014) but not triglycerides (P = .369), insulin (P = .470), HOMA-IR (P = .461), and ADIPO-IR (P = .335). When covariates were included, rhythmicity was observed when adjusting for: 1) BMI: glucose (P < .001), triglycerides (P < .001), insulin (P < .001), HOMA-IR (P < .001), and ADIPO-IR (P < .001); 2) physical activity: glucose (P < .001), triglycerides (P = .006), and ADIPO-IR (P = .038); and 3) CRF: triglycerides (P = .041), insulin (P = .002), HOMA-IR (P = .004), and ADIPO-IR (P = .004). Triglyceride amplitude, but not acrophase, was greater in the high physical activity category compared to low (P = .018). CONCLUSION Rhythmicity in insulin sensitivity and associated metabolites across the menstrual cycle are modified by BMI, physical activity, and CRF.
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Affiliation(s)
- Kirstin A MacGregor
- Physiology, Exercise and Nutrition Research Group, University of Stirling, Stirling, Stirlingshire, Scotland FK9 4LA, UK
| | - Iain J Gallagher
- Physiology, Exercise and Nutrition Research Group, University of Stirling, Stirling, Stirlingshire, Scotland FK9 4LA, UK
| | - Colin N Moran
- Physiology, Exercise and Nutrition Research Group, University of Stirling, Stirling, Stirlingshire, Scotland FK9 4LA, UK
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Smith JAB, Savikj M, Sethi P, Platt S, Gabriel BM, Hawley JA, Dunstan D, Krook A, Zierath JR, Näslund E. Three weeks of interrupting sitting lowers fasting glucose and glycemic variability, but not glucose tolerance, in free-living women and men with obesity. Am J Physiol Endocrinol Metab 2021; 321:E203-E216. [PMID: 34151582 DOI: 10.1152/ajpendo.00599.2020] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
We aimed to determine whether interrupting prolonged sitting improves glycemic control and the metabolic profile of free-living adults with obesity. Sixteen sedentary individuals {10 women/6 men; median [interquartile range (IQR)] age 50 (44-53) yr, body mass index (BMI) 32 (32-35.8) kg/m2} were fitted with continuous glucose and activity monitors for 4 wk. After a 1-wk baseline period, participants were randomized into habitual lifestyle (Control) or frequent activity breaks from sitting (FABS) intervention groups. Each day, between 0800 and 1800 h, FABS received smartwatch notifications to break sitting with 3 min of low-to-moderate-intensity physical activity every 30 min. Glycemic control was assessed by oral glucose tolerance test (OGTT) and continuous glucose monitoring. Blood samples and vastus lateralis biopsies were taken for assessment of clinical chemistry and the skeletal muscle lipidome, respectively. Compared with baseline, FABS increased median steps by 744 [IQR (483-951)] and walking time by 10.4 [IQR (2.2-24.6)] min/day. Other indices of activity/sedentary behavior were unchanged. Glucose tolerance and average 24-h glucose curves were also unaffected. However, mean (±SD) fasting glucose levels [-0.34 (±0.37) mmol/L] and daily glucose variation [%CV; -2% (±2.2%)] reduced in FABS, suggesting a modest benefit for glycemic control that was most robust at higher volumes of daily activity. Clinical chemistry and the skeletal muscle lipidome were largely unperturbed, although two long-chain triglycerides increased 1.25-fold in FABS, postintervention. All parameters remained stable in control. Under free-living conditions, FABS lowered fasting glucose and glucose variability. Larger volumes of activity breaks from sitting may be required to promote greater health benefits.NEW & NOTEWORTHY Under free-living conditions, breaking sitting modestly increased activity behavior. Breaking sitting was insufficient to modulate glucose tolerance or the skeletal muscle lipidome. Activity breaks reduced fasting blood glucose levels and daily glucose variation compared with baseline, with a tendency to also decrease fasting LDLc. This intervention may represent the minimal dose for breaking sedentary behavior, with larger volumes of activity possibly required to promote greater health benefits.
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Affiliation(s)
- Jonathon A B Smith
- Integrative Physiology, Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
| | - Mladen Savikj
- Integrative Physiology, Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Parneet Sethi
- Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Simon Platt
- Integrative Physiology, Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
| | - Brendan M Gabriel
- Integrative Physiology, Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
| | - John A Hawley
- Exercise and Nutrition Research Program, Mary MacKillop Institute for Health Research, Australian Catholic University, Melbourne, Victoria, Australia
| | - David Dunstan
- Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
- Exercise and Nutrition Research Program, Mary MacKillop Institute for Health Research, Australian Catholic University, Melbourne, Victoria, Australia
| | - Anna Krook
- Integrative Physiology, Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
| | - Juleen R Zierath
- Integrative Physiology, Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
- Integrative Physiology, Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Erik Näslund
- Division of Surgery, Department of Clinical Sciences, Danderyd Hospital, Karolinska Institute, Stockholm, Sweden
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Ihalainen JK, Löfberg I, Kotkajuuri A, Kyröläinen H, Hackney AC, Taipale-Mikkonen RS. Influence of Menstrual Cycle or Hormonal Contraceptive Phase on Energy Intake and Metabolic Hormones-A Pilot Study. ENDOCRINES 2021; 2:79-90. [PMID: 33959726 PMCID: PMC8096184 DOI: 10.3390/endocrines2020008] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Sex hormones are suggested to influence energy intake (EI) and metabolic hormones. This study investigated the influence of menstrual cycle (MC) and hormonal contraceptive (HC) cycle phases on EI, energy availability (EA), and metabolic hormones in recreational athletes (eumenorrheic, NHC = 15 and monophasic HC-users, CHC = 9). In addition, 72-h dietary and training logs were collected in addition to blood samples, which were analyzed for 17β-estradiol (E2), progesterone (P4), leptin, total ghrelin, insulin, and tri-iodothyronine (T3). Measurements were completed at four time-points (phases): Bleeding, mid-follicular (FP)/active 1, ovulation (OVU)/active 2, mid-luteal (LP)/inactive in NHC/CHC, respectively. As expected, E2 and P4 fluctuated significantly in NHC (p < 0.05) and remained stable in CHC. In NHC, leptin increased significantly between bleeding and ovulation (p = 0.030) as well as between FP and OVU (p = 0.022). No group differences in other measured hormones were observed across the MC and HC cycle. The mean EI and EA were similar between phases, with no significant differences observed in macronutrient intake over either the MC or HC. While the MC phase might have a small, but statistically significant effect on leptin, the findings of the present study suggest that the MC or HC phase does not significantly alter ad libitum EI or EA in recreational athletes.
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Affiliation(s)
- Johanna K. Ihalainen
- Faculty of Sport and Health Sciences, University of Jyväskylä, 40014 Jyväskylä, Finland
| | - Ida Löfberg
- Faculty of Sport and Health Sciences, University of Jyväskylä, 40014 Jyväskylä, Finland
| | - Anna Kotkajuuri
- Faculty of Sport and Health Sciences, University of Jyväskylä, 40014 Jyväskylä, Finland
| | - Heikki Kyröläinen
- Faculty of Sport and Health Sciences, University of Jyväskylä, 40014 Jyväskylä, Finland
| | - Anthony C. Hackney
- Department of Exercise & Sport Science-Department of Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Ritva S. Taipale-Mikkonen
- Faculty of Sport and Health Sciences, University of Jyväskylä, 40014 Jyväskylä, Finland
- Sports Technology Unit, Faculty of Sport and Health Sciences, University of Jyväskylä, 88610 Vuokatti, Finland
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Grant AD, Newman M, Kriegsfeld LJ. Ultradian rhythms in heart rate variability and distal body temperature anticipate onset of the luteinizing hormone surge. Sci Rep 2020; 10:20378. [PMID: 33230235 PMCID: PMC7683606 DOI: 10.1038/s41598-020-76236-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 10/20/2020] [Indexed: 11/13/2022] Open
Abstract
The menstrual cycle is characterized by predictable patterns of physiological change across timescales. Although patterns of reproductive hormones across the menstrual cycle, particularly ultradian rhythms, are well described, monitoring these measures repeatedly to predict the preovulatory luteinizing hormone (LH) surge is not practical. In the present study, we explored whether non-invasive measures coupled to the reproductive system: high frequency distal body temperature (DBT), sleeping heart rate (HR), sleeping heart rate variability (HRV), and sleep timing, could be used to anticipate the preovulatory LH surge in women. To test this possibility, we used signal processing to examine these measures in 45 premenopausal and 10 perimenopausal cycles alongside dates of supra-surge threshold LH and menstruation. Additionally, urinary estradiol and progesterone metabolites were measured daily surrounding the LH surge in 20 cycles. Wavelet analysis revealed a consistent pattern of DBT and HRV ultradian rhythm (2-5 h) power that uniquely enabled anticipation of the LH surge at least 2 days prior to its onset in 100% of individuals. Together, the present findings reveal fluctuations in distal body temperature and heart rate variability that consistently anticipate the LH surge, suggesting that automated ultradian rhythm monitoring may provide a novel and convenient method for non-invasive fertility assessment.
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Affiliation(s)
- Azure D Grant
- The Helen Wills Neuroscience Institute, University of California, 175 Li Ka Shing Center, MC # 3370, Berkeley, CA, 94720, USA
| | - Mark Newman
- Precision Analytical, McMinnville, OR, 97128, USA
| | - Lance J Kriegsfeld
- The Helen Wills Neuroscience Institute, University of California, 175 Li Ka Shing Center, MC # 3370, Berkeley, CA, 94720, USA.
- Department of Psychology, University of California, Berkeley, CA, 94720, USA.
- Department of Integrative Biology, University of California, Berkeley, CA, 94720, USA.
- Graduate Group in Endocrinology, University of California, Berkeley, CA, 94720, USA.
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Bruls YMH, op den Kamp YJM, Phielix E, Lindeboom L, Havekes B, Schaart G, Moonen-Kornips E, Wildberger JE, Hesselink MKC, Schrauwen P, Schrauwen-Hinderling VB. L-carnitine infusion does not alleviate lipid-induced insulin resistance and metabolic inflexibility. PLoS One 2020; 15:e0239506. [PMID: 32976523 PMCID: PMC7518598 DOI: 10.1371/journal.pone.0239506] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 09/07/2020] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND Low carnitine status may underlie the development of insulin resistance and metabolic inflexibility. Intravenous lipid infusion elevates plasma free fatty acid (FFA) concentration and is a model for simulating insulin resistance and metabolic inflexibility in healthy, insulin sensitive volunteers. Here, we hypothesized that co-infusion of L-carnitine may alleviate lipid-induced insulin resistance and metabolic inflexibility. METHODS In a randomized crossover trial, eight young healthy volunteers underwent hyperinsulinemic-euglycemic clamps (40mU/m2/min) with simultaneous infusion of saline (CON), Intralipid (20%, 90mL/h) (LIPID), or Intralipid (20%, 90mL/h) combined with L-carnitine infusion (28mg/kg) (LIPID+CAR). Ten volunteers were randomized for the intervention arms (CON, LIPID and LIPID+CAR), but two dropped-out during the study. Therefore, eight volunteers participated in all three intervention arms and were included for analysis. RESULTS L-carnitine infusion elevated plasma free carnitine availability and resulted in a more pronounced increase in plasma acetylcarnitine, short-, medium-, and long-chain acylcarnitines compared to lipid infusion, however no differences in skeletal muscle free carnitine or acetylcarnitine were found. Peripheral insulin sensitivity and metabolic flexibility were blunted upon lipid infusion compared to CON but L-carnitine infusion did not alleviate this. CONCLUSION Acute L-carnitine infusion could not alleviated lipid-induced insulin resistance and metabolic inflexibility and did not alter skeletal muscle carnitine availability. Possibly, lipid-induced insulin resistance may also have affected carnitine uptake and may have blunted the insulin-induced carnitine storage in muscle. Future studies are needed to investigate this.
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Affiliation(s)
- Yvonne M. H. Bruls
- Departments of Radiology and Nuclear Medicine, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, Maastricht, The Netherlands
- Departments of Nutrition and Movement Sciences, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Yvo J. M. op den Kamp
- Departments of Nutrition and Movement Sciences, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Esther Phielix
- Departments of Nutrition and Movement Sciences, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Lucas Lindeboom
- Departments of Radiology and Nuclear Medicine, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, Maastricht, The Netherlands
- Departments of Nutrition and Movement Sciences, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Bas Havekes
- Division of Endocrinology, Department of Internal Medicine, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Gert Schaart
- Departments of Nutrition and Movement Sciences, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Esther Moonen-Kornips
- Departments of Nutrition and Movement Sciences, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Joachim E. Wildberger
- Departments of Radiology and Nuclear Medicine, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Matthijs K. C. Hesselink
- Departments of Nutrition and Movement Sciences, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Patrick Schrauwen
- Departments of Nutrition and Movement Sciences, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Vera B. Schrauwen-Hinderling
- Departments of Radiology and Nuclear Medicine, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, Maastricht, The Netherlands
- Departments of Nutrition and Movement Sciences, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, Maastricht, The Netherlands
- * E-mail:
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Halli SS, Prasad JB, Biradar RA. Increased blood glucose level following hysterectomy among reproductive women in India. BMC Womens Health 2020; 20:211. [PMID: 32967655 PMCID: PMC7513479 DOI: 10.1186/s12905-020-01075-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 09/15/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND In recent years, the hysterectomy, a surgical removal of the uterus, has received increased attention in health policy debates in India. The trigger for this was a series of media reports that highlighted an unusual surge in the number of women undergoing hysterectomies with a significant number of cases involving young and early menopausal women from low-income families. When menopause occurs as a result of hysterectomy, then the hormones such as estrogen and progesterone affect how the body cells respond to insulin. To date, we have not come across a national study following blood glucose levels among women who undergo a hysterectomy. METHODS The study used the Indian fourth round of National Family Health Survey data, which is a cross-sectional nationally representative sample of 699,686 women in the age group 15-49 years and conducted during 2015-16. Bivariate and multivariate logistic regressions were used to examine the effect of hysterectomy on blood glucose level of > 140 mg/dl among women of reproductive age groups. RESULTS The blood glucose level of > 140 mg/dl was much higher among women who had undergone a hysterectomy (12.2%) compared to non-hysterectomy women (5.7%). The pattern holds true among relevant background characteristics such as age, place of residence, education, caste, religion, wealth, marital status, body mass index (BMI), anaemia and consumption of tobacco. The adjusted odds after controlling for significant background factors, women who underwent hysterectomy experienced 15% higher odds of blood glucose level of > 140 mg/dl compared those who did not. CONCLUSIONS The results indicated increased blood glucose level among women post hysterectomy. Hence, the government of India should consider developing evidence-based policies and programming to provide effective targeted interventions for the better reproductive health of women.
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Affiliation(s)
- Shiva S. Halli
- Department of Community Health Sciences, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB R3E 0T6 Canada
| | - Jang Bahadur Prasad
- Department of Epidemiology and Biostatistics, KLE University, Belgaum, Karnataka 590010 India
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Lai CW, Jadhav S, Njei B, Ye A, Wactawski-Wende J, Mumford SL, Schisterman EF, Rotman Y. Rhythmic Fluctuations in Levels of Liver Enzymes During Menstrual Cycles of Healthy Women and Effects of Body Weight. Clin Gastroenterol Hepatol 2020; 18:2055-2063.e2. [PMID: 31811951 PMCID: PMC7269853 DOI: 10.1016/j.cgh.2019.11.047] [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] [Received: 08/22/2019] [Revised: 10/21/2019] [Accepted: 11/24/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS Female sex hormones affect several non-reproductive organs, but little is known about their effects on the liver during a normal menstrual cycle. We aimed to investigate the association between sex hormones and liver enzymes in healthy menstruating women. METHODS We performed a post-hoc analysis of data from the BioCycle study, a longitudinal cohort study designed to determine the association of sex hormones with markers of oxidative stress during the menstrual cycle. We analyzed data collected from 259 menstruating women, over 1-2 menstrual cycles, who had as many as 16 separate office visits, timed by fertility monitors. Levels of liver enzymes, including alanine aminotransferase (ALT), aspartate aminotransferase, and alkaline phosphatase (ALKP), bilirubin, and lipids were measured by laboratory assays. RESULTS We found a natural cyclic pattern for liver enzymes, with transaminases and ALKP peaking in the mid-follicular phase and reaching a trough in the late luteal phase; the peak to trough differences were 4.0 ± 4.9 U/L for ALT and 8.8 ± 4.0 U/L for ALKP. Levels of ALT were significantly and negatively associated with levels of progesterone on the preceding visit (P = 5x10-4), whereas level of ALKP was negatively associated with level of estrogen (P = .007) and progesterone (P = 1x10-11). Food and alcohol intake did not modify the association. The amplitude of ALT fluctuation was greater in African Americans and decreased with age. Fluctuations in levels of ALT were smaller in women with body mass indices >30 kg/m2 (P = .03). During menstrual fluctuation, 49% of participants had ALT values both above and below the normal cut-off value (19 U/L). CONCLUSIONS Levels of liver enzymes fluctuate during the normal menstrual cycle, possibly mediated by progesterone, and the fluctuation varies with age and body mass index. These findings indicate the importance of accounting for phase of menstrual cycle when interpreting liver enzyme measurements in menstruating women.
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Affiliation(s)
- Chunwei Walter Lai
- Liver & Energy Metabolism Section, Liver Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD,These authors contributed equally
| | - Sneha Jadhav
- Liver & Energy Metabolism Section, Liver Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD,These authors contributed equally
| | - Basile Njei
- Liver & Energy Metabolism Section, Liver Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD,Department of Medicine, University of Connecticut School of Medicine, Farmington, CT
| | - Aijun Ye
- Epidemiology Branch, Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health & Human Development, National Institutes of Health, Rockville, MD
| | - Jean Wactawski-Wende
- Department of Epidemiology and Environmental Health, University at Buffalo, Buffalo, NY
| | - Sunni L. Mumford
- Epidemiology Branch, Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health & Human Development, National Institutes of Health, Rockville, MD
| | - Enrique F. Schisterman
- Epidemiology Branch, Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health & Human Development, National Institutes of Health, Rockville, MD
| | - Yaron Rotman
- Liver and Energy Metabolism Section, Liver Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland.
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Streeper RT, Louden C, Izbicka E. Oral Azelaic Acid Ester Decreases Markers of Insulin Resistance in Overweight Human Male Subjects. In Vivo 2020; 34:1173-1186. [PMID: 32354907 DOI: 10.21873/invivo.11890] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 02/06/2020] [Accepted: 02/13/2020] [Indexed: 12/24/2022]
Abstract
BACKGROUND/AIM Insulin resistance (IR) is linked to increased risk of cardiovascular disease and cancer. We examined safety and efficacy of the natural product diethyl azelate (DEA) in overweight males with a varying degree of IR. PATIENTS AND METHODS Seventeen subjects [age 18-42, hemoglobin A1c (A1c) of 5.2-6.2%] received orally 1 mg/kg DEA daily for 21 days. Blood plasma glucose, insulin and lipid levels were assessed before and after treatment. RESULTS DEA was well tolerated without hypoglycemia or adverse effects except transient diarrhea (n=1). DEA significantly reduced fasting glucose by 6.06 mg/dl (n=8) and insulin by 37.8% (n=8) in subjects with IR and/or A1c ≥5.6%. Furthermore, it improved cholesterol/HDL, LDL/HDL, and non-cholesterol HDL/HDL by 5.4, 6.5, and 6.6%, respectively in all subjects, and by 8.0, 9.8, and 9.8%, respectively in 9 subjects with A1c ≥5.6%. CONCLUSION DEA efficacy correlates with the degree of IR. DEA holds promise as a novel treatment for the management of IR.
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Li M, Song Y, Rawal S, Hinkle SN, Zhu Y, Tekola-Ayele F, Ferrara A, Tsai MY, Zhang C. Plasma Prolactin and Progesterone Levels and the Risk of Gestational Diabetes: A Prospective and Longitudinal Study in a Multiracial Cohort. Front Endocrinol (Lausanne) 2020; 11:83. [PMID: 32180760 PMCID: PMC7058109 DOI: 10.3389/fendo.2020.00083] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Accepted: 02/10/2020] [Indexed: 12/19/2022] Open
Abstract
Objective: Prolactin and progesterone are implicated in glucose homeostasis in and outside of pregnancy. However, their associations with gestational diabetes (GDM) risk were not well-understood. This study investigates this question in a prospective and longitudinal cohort. Methods: This is a nested case-control study of 107 incident GDM cases and 214 matched non-GDM controls within the NICHD Fetal Growth Studies-Singleton Cohort. Blood samples were collected at gestational weeks 10-14, 15-26, 23-31, and 33-39. The odds ratios (OR) of GDM were estimated using conditional logistic regression. The longitudinal changes in prolactin and progesterone were estimated using linear mixed-effects models. Results: Compared to controls, cases have significantly higher prolactin levels at weeks 10-14 (median: 50.4 vs. 42.1 ng/mL), and significantly lower progesterone levels at weeks 10-14 (median: 109.4 vs. 126.5 nmol/L). Prolactin levels at weeks 10-14 were significantly and positively associated with GDM risk; the adjusted ORs across increasing quartiles were 1.00, 1.13, 1.80, 2.33 (p-trend = 0.02). A similar but slightly attenuated association was observed at weeks 15-26 (p-trend = 0.05). Progesterone was not associated with GDM risk at either time points. Longitudinal changes in prolactin and progesterone between the first two visits were not associated with GDM risk. In addition, prolactin was significantly and positively associated with insulin and C-peptide levels at weeks 10-14, and significantly and inversely associated with C-peptide levels at weeks 15-26; progesterone was significantly and inversely associated with glucose and insulin levels. Conclusions: This study provided the first prospective evidence of a positive association between prolactin levels in early pregnancy and GDM risk.
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Affiliation(s)
- Mengying Li
- Epidemiology Branch, Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD, United States
| | - Yiqing Song
- Epidemiology Department, Richard M. Fairbanks School of Public Health, Indiana University, Indianapolis, IN, United States
| | - Shristi Rawal
- Department of Nutritional Sciences, School of Health Professions, Rutgers University, Newark, NJ, United States
| | - Stefanie N. Hinkle
- Epidemiology Branch, Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD, United States
| | - Yeyi Zhu
- Division of Research, Kaiser Permanente Northern California, Oakland, CA, United States
- Department of Epidemiology & Biostatistics, University of California, San Francisco, San Francisco, CA, United States
| | - Fasil Tekola-Ayele
- Epidemiology Branch, Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD, United States
| | - Assiamira Ferrara
- Division of Research, Kaiser Permanente Northern California, Oakland, CA, United States
| | - Michael Y. Tsai
- Department of Laboratory Medicine and Pathology, University of Minnesota Medical School, Minneapolis, MN, United States
| | - Cuilin Zhang
- Epidemiology Branch, Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD, United States
- *Correspondence: Cuilin Zhang
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Mizutani S, Matsumoto K, Kato Y, Mizutani E, Mizutani H, Iwase A, Shibata K. New insights into human endometrial aminopeptidases in both implantation and menstruation. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2019; 1868:140332. [PMID: 31765716 DOI: 10.1016/j.bbapap.2019.140332] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Revised: 11/19/2019] [Accepted: 11/21/2019] [Indexed: 01/16/2023]
Abstract
The endometrium cycle involves proliferation of endometrial epithelial cells in preparation for implantation of fertilized ovum. With ovulation, the endometrium secretes nutrients such as peptides and amino acids into the endometrial cavity. The histological evidence of ovulation in normal menstrual cycle includes subnuclear glycogen vacuoles surrounded by placental leucine aminopeptidase (P-LAP) in endometrial epithelial cells. P-LAP is an essentially involved in intracellular trafficking of glucose transporter (GLUT) 4 which is primarily important for glucose uptake in skeletal muscles and fat tissues. On the other hand, glucose influx from blood into endometrial epithelial cells is not mainly mediated by GLUTs, but by coincident appearing progesterone just after ovulation. Progesterone increases permeability of not only plasma membranes, but also lysosomal membranes, and this may be primarily involved in glucose influx. Progesterone also expands the exocytosis in the endometrium after ovulation, and endometrial secretion after ovulation is possibly apocrine and holocrine, which is augmented and exaggerated exocytosis of the lysosomal contents. The endometrial spiral arteries/arterioles are surrounded by endometrial stromal cells which are differentiated into decidual/pre-decidual cells. Decidual cells are devoid of aminopeptidase A (APA), possibly leading to enhancement of Angiotensin-II action in decidual cell area due to loss of its degradation by APA. Angiotensin-II is thought to exert growth-factor-like effects in post-implantation embryos in decidual cells, thereby contributing to implantation. Without implantation, angiotensin-II constricts the endometrial spiral arteries/arterioles to promote menstruation. Thus, P-LAP and APA may be involved in homeostasis in uterus via regulating glucose transport and vasoconstrictive peptides.
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Affiliation(s)
- Shigehiko Mizutani
- Daiyabilding Lady's Clinic, 3-15-1 Meieki, Nakamura-ku, Nagoya 450-0002, Japan; Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Tsurumai-cho 65, Showa-ku, Nagoya 466-8550, Japan.
| | - Kunio Matsumoto
- Division of Tumor Dynamics and Regulation, Cancer Research Institute, Kanazawa University, Kanazawa, Japan
| | - Yukio Kato
- Department of Molecular Pharmacotherapeutics, Faculty of Pharmacy, Kanazawa University, Kanazawa, Japan
| | - Eita Mizutani
- Daiyabilding Lady's Clinic, 3-15-1 Meieki, Nakamura-ku, Nagoya 450-0002, Japan; Department of Obstetrics and Gynecology, Bantane Hospital, Fujita Health University, 3-6-10 Odobashi, Nakagawa-ku, Nagoya 454-8509, Japan
| | - Hidesuke Mizutani
- Department of Obstetrics and Gynecology, Okazaki Municipal Hospital, 3-1 Koryuji-cho, Okazaaki 444-8553, Japan
| | - Akira Iwase
- Department of Obstetrics and Gynecology, Gunma University Graduate School of Medicine, 3-39-22, Showa-machi, Maebashi 371-8511, Japan
| | - Kiyosumi Shibata
- Department of Obstetrics and Gynecology, Bantane Hospital, Fujita Health University, 3-6-10 Odobashi, Nakagawa-ku, Nagoya 454-8509, Japan
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Effects of timing of acute catechin-rich green tea ingestion on postprandial glucose metabolism in healthy men. J Nutr Biochem 2019; 73:108221. [PMID: 31522082 DOI: 10.1016/j.jnutbio.2019.108221] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 07/26/2019] [Accepted: 07/31/2019] [Indexed: 01/07/2023]
Abstract
Green tea polyphenols, particularly catechins, decrease fasting and postprandial glucose. However, no studies have compared the timing of green tea ingestion on glucose metabolism and changes in catechin concentrations. Here, we examined the effects of timing of acute catechin-rich green tea ingestion on postprandial glucose metabolism in young men. Seventeen healthy young men completed four trials involving blood collection in a fasting state and at 30, 60, 120, and 180 min after meal consumption in a random order: 1) morning placebo trial (09:00 h; MP trial), 2) evening placebo trial (17:00 h; EP trial), 3) morning catechin-rich green tea trial (09:00 h; MGT trial), and 4) evening catechin-rich green tea trial (17:00 h; EGT trial). The concentrations of glucose at 120 min (P=.031) and 180 min (P=.013) after meal intake were significantly higher in the MGT trials than in the MP trials. Additionally, the concentration of glucose was significantly lower in EGT trials than in the EP trials at 60 min (P=.014). Moreover, the concentrations of glucose-dependent insulinotropic polypeptide were significantly lower in the green tea trials than in the placebo trials at 30 min (morning: P=.010, evening: P=.006) and 60 min (morning: P=.001, evening: P=.006) after meal intake in both the morning and evening trials. Our study demonstrated that acute ingestion of catechin-rich green tea in the evening reduced postprandial plasma glucose concentrations.
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Faulkner JL, Belin de Chantemèle EJ. Sex hormones, aging and cardiometabolic syndrome. Biol Sex Differ 2019; 10:30. [PMID: 31262349 PMCID: PMC6604485 DOI: 10.1186/s13293-019-0246-6] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 06/14/2019] [Indexed: 12/22/2022] Open
Abstract
It is well documented that the metabolic syndrome predisposes patients to increased cardiovascular risk. Emerging data indicates that cardiovascular risk conferred by metabolic syndrome is highly dependent on sex and sex hormone status throughout the lifetime. Both male and female sex hormones, as well as sex chromosomes themselves, contribute to the development of obesity and intervene in the control of insulin homeostasis and blood pressure. Furthermore, men and women develop age-associated cardiometabolic risk in a sex-specific fashion in association with changes in these sex hormonal levels. Therefore, the current notion of the metabolic syndrome as a sex-independent diagnosis is antiquated, and novel studies and clinical trials utilizing these known sex differences in the development of metabolic dysregulation and cardiometabolic risk are warranted.
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Affiliation(s)
- Jessica L. Faulkner
- Department of Medicine (Cardiology), Vascular Biology Center, Medical College of Georgia at Augusta University, 1460 Laney Walker Blvd, Augusta, GA 30912 USA
| | - Eric J. Belin de Chantemèle
- Department of Medicine (Cardiology), Vascular Biology Center, Medical College of Georgia at Augusta University, 1460 Laney Walker Blvd, Augusta, GA 30912 USA
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Jayanthi R, Srinivasan AR. "Sex hormone independent associations between insulin resistance and thyroid status -a gender based biochemical study on clinically euthyroid non-obese, overweight and obese type 2 diabetics''. Diabetes Metab Syndr 2019; 13:2286-2291. [PMID: 31235170 DOI: 10.1016/j.dsx.2019.05.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Accepted: 05/22/2019] [Indexed: 12/23/2022]
Abstract
AIM Studies indicate that type 2 diabetes mellitus (T2DM) might contribute to the development of thyroid disorders (TD). However, few gender based reports are available describing therelationship between T2DM and TD in clinically euthyroid, anthropometry specified groups of type 2 diabetics. The aim of this study was to relategender based biochemical changes in anthropometry specified, clinically euthyroid type 2 diabetics. METHODOLOGY The study was carried out on clinically euthyroid type 2 diabetics (male n = 269; female n = 301) at a tertiary health care unit in Pondicherry, South India. Three groups were segregatedbased on Body mass Index: 153 non-obese type 2 diabetics (BMI = 18.5-24.99), 291 overweight type 2 diabetics (BMI = 25-29.99) and 126 obese type 2 diabetics (BMI ≥ 30). Biochemical parameters included glycated hemoglobin, insulin resistance, Cortisol and Thyroid profile. RESULTS The study had included clinically euthyroid type 2 diabetics (52.8% females and 47.2% males). Statistically significant associationsweredifferently observed between insulin resistance (dependent variable) andother independent variables, irrespective of sex hormone status. Total protein was negatively related in non -obese male type 2 diabetics (R = 0.780); Triiodothyronine was inversely associated in overweight males, whereas cortisol and the divalent cations (Zinc and Magnesium) depicted positive association (R = 0.555) in the same group (overweight), butcortisol in non -obese female type 2 diabeticswas negative (R = 0.742); Glycated hemoglobin and calcium exhibited positive relationshipin obese type 2 female diabetics (R = 0.771).. CONCLUSION Our study has revealed distinctive relationship between T2DM and TD in the anthropometry specified, clinically euthyroid and gender based type 2 diabetics, independent of the sex hormones.
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Affiliation(s)
- Rajendran Jayanthi
- Department of Biochemistry, Mahatma Gandhi Medical College & Research Institute, Sri BalajiVidyapeeth (Deemed to be University Accredited with A Grade by NAAC), Pondicherry, 607402, India
| | - Abu Raghavan Srinivasan
- Department of Biochemistry, Mahatma Gandhi Medical College & Research Institute, Sri BalajiVidyapeeth (Deemed to be University Accredited with A Grade by NAAC), Pondicherry, 607402, India.
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