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Stefanaki K, Karagiannakis DS, Peppa M, Vryonidou A, Kalantaridou S, Goulis DG, Psaltopoulou T, Paschou SA. Food Cravings and Obesity in Women with Polycystic Ovary Syndrome: Pathophysiological and Therapeutic Considerations. Nutrients 2024; 16:1049. [PMID: 38613082 PMCID: PMC11013286 DOI: 10.3390/nu16071049] [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: 01/12/2024] [Revised: 04/01/2024] [Accepted: 04/02/2024] [Indexed: 04/14/2024] Open
Abstract
Polycystic ovary syndrome (PCOS), the most common endocrine disorder in women of reproductive age, constitutes a metabolic disorder frequently associated with obesity and insulin resistance (IR). Furthermore, women with PCOS often suffer from excessive anxiety and depression, elicited by low self-esteem due to obesity, acne, and hirsutism. These mood disorders are commonly associated with food cravings and binge eating. Hypothalamic signaling regulates appetite and satiety, deteriorating excessive food consumption. However, the hypothalamic function is incapable of compensating for surplus food in women with PCOS, leading to the aggravation of obesity and a vicious circle. Hyperandrogenism, IR, the reduced secretion of cholecystokinin postprandially, and leptin resistance defined by leptin receptors' knockout in the hypothalamus have been implicated in the pathogenesis of hypothalamic dysfunction and appetite dysregulation. Diet modifications, exercise, and psychological and medical interventions have been applied to alleviate food disorders, interrupting the vicious circle. Cognitive-behavioral intervention seems to be the mainstay of treatment, while the role of medical agents, such as GLP-1 analogs and naltrexone/bupropion, has emerged.
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Affiliation(s)
- Katerina Stefanaki
- Endocrine Unit and Diabetes Center, Department of Clinical Therapeutics, Alexandra Hospital, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece; (K.S.); (T.P.); (S.A.P.)
| | - Dimitrios S. Karagiannakis
- Academic Department of Gastroenterology, Laiko General Hospital, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Melpomeni Peppa
- Endocrine Unit and Diabetes Center, Second Department of Internal Medicine, Attikon University Hospital, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece;
- 3rd Department of Internal Medicine, Sotiria Chest Disease Hospital, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Andromachi Vryonidou
- Department of Endocrinology and Diabetes Center, Hellenic Red Cross Hospital, 11526 Athens, Greece;
| | - Sophia Kalantaridou
- 3rd Department of Obstetrics and Gynecology, Attikon University Hospital, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece;
| | - Dimitrios G. Goulis
- Unit of Reproductive Endocrinology, First Department of Obstetrics and Gynecology, School of Medicine, Aristotle University of Thessaloniki, 57001 Thessaloniki, Greece
| | - Theodora Psaltopoulou
- Endocrine Unit and Diabetes Center, Department of Clinical Therapeutics, Alexandra Hospital, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece; (K.S.); (T.P.); (S.A.P.)
| | - Stavroula A. Paschou
- Endocrine Unit and Diabetes Center, Department of Clinical Therapeutics, Alexandra Hospital, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece; (K.S.); (T.P.); (S.A.P.)
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Craft RM, Sewell CM, Taylor TM, Vo MS, Delevich K, Morgan MM. Impact of continuous testosterone exposure on reproductive physiology, activity, and pain-related behavior in young adult female rats. Horm Behav 2024; 158:105469. [PMID: 38091929 DOI: 10.1016/j.yhbeh.2023.105469] [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: 09/01/2023] [Revised: 12/02/2023] [Accepted: 12/04/2023] [Indexed: 02/05/2024]
Abstract
Testosterone may reduce pain in cisgender women and transgender men. Rodents can provide a useful model for investigating physiological effects of hormone therapy. To this end, continuous-release testosterone or blank (placebo) capsules were implanted s.c. into young adult female rats, and three weeks later rats were either ovariectomized or sham-ovariectomized. Testosterone treatment that mimicked previously reported endogenous levels in males eliminated estrous cycling and decreased uterine weight. Testosterone also significantly increased body weight and suppressed the increases in daily wheel running observed in placebo controls over time. Subsequent ovariectomy or sham-ovariectomy decreased wheel running in all groups, but testosterone-treated rats recovered significantly more quickly than did placebo-treated rats. Neither testosterone nor ovariectomy significantly altered hindpaw mechanical threshold. Two weeks after sham/ovariectomy surgery, injection of Complete Freund Adjuvant (CFA) into one hindpaw reduced wheel running and mechanical threshold in all groups; running significantly decreased from the first to second day after CFA in testosterone- but not in placebo-treated rats. Morphine 1.0 but not 3.2 mg/kg increased CFA-suppressed wheel running similarly in all groups, whereas both doses of morphine increased CFA-suppressed mechanical threshold. These data suggest that weeks-long testosterone treatment with or without ovariectomy may provide a useful physiological model of testosterone therapy as used in human gender transition. Although testosterone administered at levels similar to those in gonadally intact males tended to hasten female rats' recovery from surgery, it did not decrease maximal pain-related behaviors after surgery or hindpaw inflammatory insult, nor did it alter opioid antinociception.
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Affiliation(s)
- Rebecca M Craft
- Department of Psychology, Washington State University, Pullman and Vancouver, WA, United States of America.
| | - Christyne M Sewell
- Department of Psychology, Washington State University, Pullman and Vancouver, WA, United States of America
| | - Tessa M Taylor
- Department of Psychology, Washington State University, Pullman and Vancouver, WA, United States of America
| | - Mai Suong Vo
- Department of Psychology, Washington State University, Pullman and Vancouver, WA, United States of America
| | - Kristen Delevich
- Department of Integrative Physiology and Neuroscience, Washington State University, Pullman, WA, United States of America
| | - Michael M Morgan
- Department of Psychology, Washington State University, Pullman and Vancouver, WA, United States of America
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Iwasa T, Noguchi H, Tanano R, Yamanaka E, Takeda A, Tamura K, Aoki H, Sugimoto T, Sasada H, Maeda T, Minato S, Yamamoto S, Inui H, Kagawa T, Yoshida A, Mineda A, Nii M, Kinouchi R, Yoshida K, Yamamoto Y, Kaji T. Age-Dependent Changes in the Effects of Androgens on Female Metabolic and Body Weight Regulation Systems in Humans and Laboratory Animals. Int J Mol Sci 2023; 24:16567. [PMID: 38068890 PMCID: PMC10706411 DOI: 10.3390/ijms242316567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 11/17/2023] [Accepted: 11/19/2023] [Indexed: 12/18/2023] Open
Abstract
In recent years, the effects of androgens on metabolic and body weight regulation systems and their underlying mechanisms have been gradually revealed in females. In women and experimental animals of reproductive age, androgen excess can adversely affect metabolic functioning, appetite, and body weight regulation. In addition, excess androgens can increase the risk of metabolic disorders, such as obesity, insulin resistance, and diabetes. These unfavorable effects of androgens are induced by alterations in the actions of hypothalamic appetite-regulatory factors, reductions in energy expenditure, insulin resistance in skeletal muscle, and β-cell dysfunction. Interestingly, these unfavorable effects of androgens on metabolic and body-weight regulation systems are neither observed nor evident in ovariectomized animals and post-menopausal women, indicating that the adverse effects of androgens might be dependent on the estrogen milieu. Recent findings may provide novel sex- and age-specific strategies for treating metabolic diseases.
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Affiliation(s)
- Takeshi Iwasa
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-Cho, Tokushima 770-8503, Japan; (H.N.); (R.T.); (E.Y.); (A.T.); (K.T.); (H.A.); (T.S.); (H.S.); (T.M.); (S.M.); (S.Y.); (H.I.); (T.K.); (A.Y.); (A.M.); (M.N.); (R.K.); (K.Y.); (Y.Y.); (T.K.)
| | - Hiroki Noguchi
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-Cho, Tokushima 770-8503, Japan; (H.N.); (R.T.); (E.Y.); (A.T.); (K.T.); (H.A.); (T.S.); (H.S.); (T.M.); (S.M.); (S.Y.); (H.I.); (T.K.); (A.Y.); (A.M.); (M.N.); (R.K.); (K.Y.); (Y.Y.); (T.K.)
| | - Risa Tanano
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-Cho, Tokushima 770-8503, Japan; (H.N.); (R.T.); (E.Y.); (A.T.); (K.T.); (H.A.); (T.S.); (H.S.); (T.M.); (S.M.); (S.Y.); (H.I.); (T.K.); (A.Y.); (A.M.); (M.N.); (R.K.); (K.Y.); (Y.Y.); (T.K.)
| | - Erika Yamanaka
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-Cho, Tokushima 770-8503, Japan; (H.N.); (R.T.); (E.Y.); (A.T.); (K.T.); (H.A.); (T.S.); (H.S.); (T.M.); (S.M.); (S.Y.); (H.I.); (T.K.); (A.Y.); (A.M.); (M.N.); (R.K.); (K.Y.); (Y.Y.); (T.K.)
| | - Asuka Takeda
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-Cho, Tokushima 770-8503, Japan; (H.N.); (R.T.); (E.Y.); (A.T.); (K.T.); (H.A.); (T.S.); (H.S.); (T.M.); (S.M.); (S.Y.); (H.I.); (T.K.); (A.Y.); (A.M.); (M.N.); (R.K.); (K.Y.); (Y.Y.); (T.K.)
| | - Kou Tamura
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-Cho, Tokushima 770-8503, Japan; (H.N.); (R.T.); (E.Y.); (A.T.); (K.T.); (H.A.); (T.S.); (H.S.); (T.M.); (S.M.); (S.Y.); (H.I.); (T.K.); (A.Y.); (A.M.); (M.N.); (R.K.); (K.Y.); (Y.Y.); (T.K.)
| | - Hidenori Aoki
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-Cho, Tokushima 770-8503, Japan; (H.N.); (R.T.); (E.Y.); (A.T.); (K.T.); (H.A.); (T.S.); (H.S.); (T.M.); (S.M.); (S.Y.); (H.I.); (T.K.); (A.Y.); (A.M.); (M.N.); (R.K.); (K.Y.); (Y.Y.); (T.K.)
| | - Tatsuro Sugimoto
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-Cho, Tokushima 770-8503, Japan; (H.N.); (R.T.); (E.Y.); (A.T.); (K.T.); (H.A.); (T.S.); (H.S.); (T.M.); (S.M.); (S.Y.); (H.I.); (T.K.); (A.Y.); (A.M.); (M.N.); (R.K.); (K.Y.); (Y.Y.); (T.K.)
| | - Hikari Sasada
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-Cho, Tokushima 770-8503, Japan; (H.N.); (R.T.); (E.Y.); (A.T.); (K.T.); (H.A.); (T.S.); (H.S.); (T.M.); (S.M.); (S.Y.); (H.I.); (T.K.); (A.Y.); (A.M.); (M.N.); (R.K.); (K.Y.); (Y.Y.); (T.K.)
| | - Takaaki Maeda
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-Cho, Tokushima 770-8503, Japan; (H.N.); (R.T.); (E.Y.); (A.T.); (K.T.); (H.A.); (T.S.); (H.S.); (T.M.); (S.M.); (S.Y.); (H.I.); (T.K.); (A.Y.); (A.M.); (M.N.); (R.K.); (K.Y.); (Y.Y.); (T.K.)
| | - Saki Minato
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-Cho, Tokushima 770-8503, Japan; (H.N.); (R.T.); (E.Y.); (A.T.); (K.T.); (H.A.); (T.S.); (H.S.); (T.M.); (S.M.); (S.Y.); (H.I.); (T.K.); (A.Y.); (A.M.); (M.N.); (R.K.); (K.Y.); (Y.Y.); (T.K.)
| | - Shota Yamamoto
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-Cho, Tokushima 770-8503, Japan; (H.N.); (R.T.); (E.Y.); (A.T.); (K.T.); (H.A.); (T.S.); (H.S.); (T.M.); (S.M.); (S.Y.); (H.I.); (T.K.); (A.Y.); (A.M.); (M.N.); (R.K.); (K.Y.); (Y.Y.); (T.K.)
- Department of Renal and Genitourinary Surgery, Graduate School of Medicine, Hokkaido University, Sapporo 060-0808, Japan
| | - Hiroaki Inui
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-Cho, Tokushima 770-8503, Japan; (H.N.); (R.T.); (E.Y.); (A.T.); (K.T.); (H.A.); (T.S.); (H.S.); (T.M.); (S.M.); (S.Y.); (H.I.); (T.K.); (A.Y.); (A.M.); (M.N.); (R.K.); (K.Y.); (Y.Y.); (T.K.)
| | - Tomohiro Kagawa
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-Cho, Tokushima 770-8503, Japan; (H.N.); (R.T.); (E.Y.); (A.T.); (K.T.); (H.A.); (T.S.); (H.S.); (T.M.); (S.M.); (S.Y.); (H.I.); (T.K.); (A.Y.); (A.M.); (M.N.); (R.K.); (K.Y.); (Y.Y.); (T.K.)
| | - Atsuko Yoshida
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-Cho, Tokushima 770-8503, Japan; (H.N.); (R.T.); (E.Y.); (A.T.); (K.T.); (H.A.); (T.S.); (H.S.); (T.M.); (S.M.); (S.Y.); (H.I.); (T.K.); (A.Y.); (A.M.); (M.N.); (R.K.); (K.Y.); (Y.Y.); (T.K.)
| | - Ayuka Mineda
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-Cho, Tokushima 770-8503, Japan; (H.N.); (R.T.); (E.Y.); (A.T.); (K.T.); (H.A.); (T.S.); (H.S.); (T.M.); (S.M.); (S.Y.); (H.I.); (T.K.); (A.Y.); (A.M.); (M.N.); (R.K.); (K.Y.); (Y.Y.); (T.K.)
| | - Mari Nii
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-Cho, Tokushima 770-8503, Japan; (H.N.); (R.T.); (E.Y.); (A.T.); (K.T.); (H.A.); (T.S.); (H.S.); (T.M.); (S.M.); (S.Y.); (H.I.); (T.K.); (A.Y.); (A.M.); (M.N.); (R.K.); (K.Y.); (Y.Y.); (T.K.)
| | - Riyo Kinouchi
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-Cho, Tokushima 770-8503, Japan; (H.N.); (R.T.); (E.Y.); (A.T.); (K.T.); (H.A.); (T.S.); (H.S.); (T.M.); (S.M.); (S.Y.); (H.I.); (T.K.); (A.Y.); (A.M.); (M.N.); (R.K.); (K.Y.); (Y.Y.); (T.K.)
| | - Kanako Yoshida
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-Cho, Tokushima 770-8503, Japan; (H.N.); (R.T.); (E.Y.); (A.T.); (K.T.); (H.A.); (T.S.); (H.S.); (T.M.); (S.M.); (S.Y.); (H.I.); (T.K.); (A.Y.); (A.M.); (M.N.); (R.K.); (K.Y.); (Y.Y.); (T.K.)
| | - Yuri Yamamoto
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-Cho, Tokushima 770-8503, Japan; (H.N.); (R.T.); (E.Y.); (A.T.); (K.T.); (H.A.); (T.S.); (H.S.); (T.M.); (S.M.); (S.Y.); (H.I.); (T.K.); (A.Y.); (A.M.); (M.N.); (R.K.); (K.Y.); (Y.Y.); (T.K.)
| | - Takashi Kaji
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto-Cho, Tokushima 770-8503, Japan; (H.N.); (R.T.); (E.Y.); (A.T.); (K.T.); (H.A.); (T.S.); (H.S.); (T.M.); (S.M.); (S.Y.); (H.I.); (T.K.); (A.Y.); (A.M.); (M.N.); (R.K.); (K.Y.); (Y.Y.); (T.K.)
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McFaline-Figueroa J, Hunda ET, Heo J, Winders EA, Greising SM, Call JA. The bioenergetic “CK Clamp” technique detects substrate-specific changes in mitochondrial respiration and membrane potential during early VML injury pathology. Front Physiol 2023; 14:1178213. [PMID: 37082244 PMCID: PMC10112539 DOI: 10.3389/fphys.2023.1178213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 03/27/2023] [Indexed: 04/07/2023] Open
Abstract
Volumetric muscle loss (VML) injuries are characterized by non-recoverable loss of tissue resulting in contractile and metabolic dysfunction. The characterization of metabolic dysfunction in volumetric muscle loss-injured muscle has been interpreted from permeabilized myofiber respiration experiments involving saturating ADP levels and non-physiologic ATP:ADP concentration ratios. The extent to which this testing condition obscures the analysis of mitochondrial (dys) function after volumetric muscle loss injury is unclear. An alternative approach is described that leverages the enzymatic reaction of creatine kinase and phosphocreatine to assess mitochondrial respiration and membrane potential at clamped physiologic ATP:ADP ratios, “CK Clamp.” The objective of this study was to validate the CK Clamp in volumetric muscle loss-injured muscle and to detect differences that may exist between volumetric muscle loss-injured and uninjured muscles at 1, 3, 5, 7, 10, and 14 days post-injury. Volumetric muscle loss-injured muscle maintains bioenergetic features of the CK Clamp approach, i.e., mitochondrial respiration rate (JO2) titters down and mitochondrial membrane potential is more polarized with increasing ATP:ADP ratios. Pyruvate/malate/succinate-supported JO2 was significantly less in volumetric muscle loss-injured muscle at all timepoints compared to uninjured controls (−26% to −84%, p < 0.001) and electron conductance was less at day 1 (−60%), 5 (−52%), 7 (−35%), 10 (−59%), and 14 (−41%) (p < 0.001). Palmitoyl-carnitine/malate-supported JO2 and electron conductance were less affected following volumetric muscle loss injury. volumetric muscle loss-injury also corresponded with a more polarized mitochondrial membrane potential across the clamped ATP:ADP ratios at day 1 and 10 (pyruvate and palmitoyl-carnitine, respectively) (+5%, p < 0.001). This study supports previous characterizations of metabolic dysfunction and validates the CK Clamp as a tool to investigate bioenergetics in traumatically-injured muscle.
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Affiliation(s)
- Jennifer McFaline-Figueroa
- Department of Physiology and Pharmacology, University of Georgia, Athens, GA, United States
- Regenerative Biosciences Center, University of Georgia, Athens, GA, United States
| | - Edward T. Hunda
- Regenerative Biosciences Center, University of Georgia, Athens, GA, United States
| | - Junwon Heo
- Department of Physiology and Pharmacology, University of Georgia, Athens, GA, United States
- Regenerative Biosciences Center, University of Georgia, Athens, GA, United States
| | - Elizabeth A. Winders
- Regenerative Biosciences Center, University of Georgia, Athens, GA, United States
| | - Sarah M. Greising
- School of Kinesiology, University of Minnesota, Minneapolis, MN, United States
| | - Jarrod A. Call
- Department of Physiology and Pharmacology, University of Georgia, Athens, GA, United States
- Regenerative Biosciences Center, University of Georgia, Athens, GA, United States
- *Correspondence: Jarrod A. Call,
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Risk Assessment of Transgender People: Development of Rodent Models Mimicking Gender-Affirming Hormone Therapies and Identification of Sex-Dimorphic Liver Genes as Novel Biomarkers of Sex Transition. Cells 2023; 12:cells12030474. [PMID: 36766819 PMCID: PMC9913858 DOI: 10.3390/cells12030474] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 01/19/2023] [Accepted: 01/25/2023] [Indexed: 02/05/2023] Open
Abstract
Transgender (TG) describes individuals whose gender identity differs from the social norms. TG people undergoing gender-affirming hormone therapy (HT) may be considered a sub-group of the population susceptible to environmental contaminants for their targets and modes of action. The aim of this study is to set appropriate HT doses and identify specific biomarkers to implement TG animal models. Four adult rats/group/sex were subcutaneously exposed to three doses of HT (plus control) selected starting from available data. The demasculinizing-feminizing models (dMF) were β-estradiol plus cyproterone acetate, at 0.09 + 0.33, 0.09 + 0.93 and 0.18 + 0.33 mg, respectively, five times/week. The defeminizing-masculinizing models (dFM) were testosterone (T) at 0.45, 0.95 and 2.05 mg, two times/week. Clitoral gain and sperm count, histopathological analysis of reproductive organs and liver, hormone serum levels and gene expression of sex-dimorphic CYP450 were evaluated. In the dMF model, the selected doses-leading to T serum levels at the range of the corresponding cisgender-induced strong general toxicity and cannot be used in long-term studies. In the dFM model, 0.45 mg of T represents the correct dose. In addition, the endpoints selected are considered suitable and reliable to implement the animal model. The sex-specific CYP expression is a suitable biomarker to set proper (de)masculinizing/(de)feminizing HT and to implement TG animal models.
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Burnatowska E, Wikarek A, Oboza P, Ogarek N, Glinianowicz M, Kocelak P, Olszanecka-Glinianowicz M. Emotional Eating and Binge Eating Disorders and Night Eating Syndrome in Polycystic Ovary Syndrome-A Vicious Circle of Disease: A Systematic Review. Nutrients 2023; 15:nu15020295. [PMID: 36678165 PMCID: PMC9865055 DOI: 10.3390/nu15020295] [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] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 12/16/2022] [Accepted: 12/27/2022] [Indexed: 01/10/2023] Open
Abstract
Obesity is an established risk factor for the development of polycystic ovary syndrome (PCOS), especially phenotype A. PCOS is an important cause of fertility disorders in a large group of women of reproductive age. For many years, effective methods of treating hormonal disorders associated with PCOS have been sought in order to restore ovulation with regular menstrual cycles. Numerous studies support obesity treatment as an effective therapeutic method for many women. A seemingly simple method of treatment may prove to be particularly difficult in this group of women. The reason for this may be the lack of recognition the primary cause of obesity development or the occurrence of a vicious circle of disease. Primary causes of developing obesity may be emotional eating (EE) and eating disorders (EDs), such as binge eating disorder (BED) and its extreme form, addictive eating, as well as night eating syndrome (NES). All of these are caused by impaired function of the reward system. Consequently, these disorders can develop or be exacerbated in women with obesity and PCOS as a result of depression and anxiety related to hirsutism and fertility disturbances. Therefore, for the effective treatment of obesity, it is very important to recognize and treat EE, BED, and NES, including the appropriate selection of pharmacotherapy and psychotherapy. Therefore, the aim of our manuscript is to analyze the available data on the relationships between EE, BED, NES, obesity, and PCOS and their impact on the treatment of obesity in women with PCOS.
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Affiliation(s)
- Ewelina Burnatowska
- Students’ Scientific Society at the Pathophysiology Unit, Department of Pathophysiology, Medical Faculty in Katowice, The Medical University of Silesia, 40-752 Katowice, Poland
| | - Agnieszka Wikarek
- Pathophysiology Unit, Department of Pathophysiology, Medical Faculty in Katowice, The Medical University of Silesia, 40-752 Katowice, Poland
| | - Paulina Oboza
- Students’ Scientific Society at the Pathophysiology Unit, Department of Pathophysiology, Medical Faculty in Katowice, The Medical University of Silesia, 40-752 Katowice, Poland
| | - Natalia Ogarek
- Pathophysiology Unit, Department of Pathophysiology, Medical Faculty in Katowice, The Medical University of Silesia, 40-752 Katowice, Poland
| | - Mateusz Glinianowicz
- Department of Psychology, Social Sciences, and Humanities, School of Health Sciences in Katowice, the Medical University of Silesia, 40-752 Katowice, Poland
| | - Piotr Kocelak
- Pathophysiology Unit, Department of Pathophysiology, Medical Faculty in Katowice, The Medical University of Silesia, 40-752 Katowice, Poland
- Correspondence:
| | - Magdalena Olszanecka-Glinianowicz
- Health Promotion and Obesity Management Unit, Department of Pathophysiology, Medical Faculty in Katowice, The Medical University of Silesia, 40-752 Katowice, Poland
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Sexually Dimorphic Effects of a Western Diet on Brain Mitochondrial Bioenergetics and Neurocognitive Function. Nutrients 2021; 13:nu13124222. [PMID: 34959774 PMCID: PMC8705773 DOI: 10.3390/nu13124222] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 11/09/2021] [Accepted: 11/22/2021] [Indexed: 12/25/2022] Open
Abstract
A Western diet (WD), high in sugars and saturated fats, impairs learning and memory function and contributes to weight gain. Mitochondria in the brain provide energy for neurocognitive function and may play a role in body weight regulation. We sought to determine whether a WD alters behavior and metabolic outcomes in male and female rodents through impacting hippocampal and hypothalamic mitochondrial bioenergetics. Results revealed a sexually dimorphic macronutrient preference, where males on the WD consumed a greater percentage of calories from fat/protein and females consumed a greater percentage of calories from a sugar-sweetened beverage. Both males and females on a WD gained body fat and showed impaired glucose tolerance when compared to same-sex controls. Males on a WD demonstrated impaired hippocampal functioning and an elevated tendency toward a high membrane potential in hippocampal mitochondria. Comprehensive bioenergetics analysis of WD effects in the hypothalamus revealed a tissue-specific adaption, where males on the WD oxidized more fat, and females oxidized more fat and carbohydrates at peak energy demand compared to same-sex controls. These results suggest that adult male rats show a susceptibility toward hippocampal dysfunction on a WD, and that hypothalamic mitochondrial bioenergetics are altered by WD in a sex-specific manner.
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Iwasa T, Yamamoto Y, Shinya A, Minato S, Yanagihara R, Kamada S, Imaizumi J, Kagawa T, Shirakawa A, Noguchi H, Nakagawa T, Taniguchi M, Kadota Y, Kawakita T, Yoshida K, Kato T, Yasui T, Irahara M. The effects of androgens on metabolic functions in females. THE JOURNAL OF MEDICAL INVESTIGATION 2021; 68:228-231. [PMID: 34759135 DOI: 10.2152/jmi.68.228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
The metabolic effects of androgens and their underlying mechanisms in females have been revealed by recent studies. An excess of androgens can have adverse effects on feeding behavior and metabolic functions and induce metabolic disorders / diseases, such as obesity, insulin resistance, and diabetes, in women and experimental animals of reproductive age. Interestingly, these effects of androgens are not observed in ovariectomized animals, indicating that their effects might be dependent on the estrogen milieu. Central and peripheral mechanisms, such as alterations in the activity of hypothalamic factors, reductions in energy expenditure, skeletal muscle insulin resistance, and β-cell dysfunction, might be related to these androgens' effects. J. Med. Invest. 68 : 228-231, August, 2021.
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Affiliation(s)
- Takeshi Iwasa
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Yuri Yamamoto
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Akari Shinya
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Saki Minato
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Rie Yanagihara
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Shuhei Kamada
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Junki Imaizumi
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Tomohiro Kagawa
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Aya Shirakawa
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Hiroki Noguchi
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Tomotaka Nakagawa
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Miyu Taniguchi
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Yuri Kadota
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Takako Kawakita
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | | | - Takeshi Kato
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Toshiyuki Yasui
- Department of Reproductive and Menopausal Medicine, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Minoru Irahara
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
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Corrie L, Gulati M, Singh SK, Kapoor B, Khursheed R, Awasthi A, Vishwas S, Chellappan DK, Gupta G, Jha NK, Anand K, Dua K. Recent updates on animal models for understanding the etiopathogenesis of polycystic ovarian syndrome. Life Sci 2021; 280:119753. [PMID: 34171379 DOI: 10.1016/j.lfs.2021.119753] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 06/16/2021] [Accepted: 06/17/2021] [Indexed: 12/17/2022]
Abstract
Polycystic ovarian syndrome (PCOS) is the primary cause of female infertility affecting several women worldwide. Changes in hormonal functions such as hyperandrogenism are considered a significant factor in developing PCOS in women. In addition, many molecular pathways are involved in the pathogenesis of PCOS in women. To have better insights about PCOS, it is data from clinical studies carried on women suffering from PCOS should be collected. However, this approach has several implications, including ethical considerations, cost involved and availability of subject. Moreover, during the early drug development process, it is always advisable to use non-human models mimicking human physiology as they are less expensive, readily available, have a shorter gestation period and less risk involved. Many animal models have been reported that resemble the PCOS pathways in human subjects. However, the models developed on rats and mice are more preferred over other rodent/non-rodent models due to their closer resemblance with human PCOS development mechanism. The most extensively reported PCOS models for rats and mice include those induced by using testosterone, letrozole and estradiol valerate. As the pathophysiology of PCOS is complex, none of the explored models completely surrogates the PCOS related conditions occurring in women. Hence, there is a need to develop an animal model that can resemble the pathophysiology of PCOS in women. The review focuses on various animal models explored to understand the pathophysiology of PCOS. The article also highlights some environmental and food-related models that have been used to induce PCOS.
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Affiliation(s)
- Leander Corrie
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab 144411, India
| | - Monica Gulati
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab 144411, India
| | - Sachin Kumar Singh
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab 144411, India.
| | - Bhupinder Kapoor
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab 144411, India
| | - Rubiya Khursheed
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab 144411, India
| | - Ankit Awasthi
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab 144411, India
| | - Sukriti Vishwas
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab 144411, India
| | - Dinesh Kumar Chellappan
- Department of Life Sciences, School of Pharmacy, International Medical University, Bukit Jalil, 57000 Kuala Lumpur, Malaysia
| | - Gaurav Gupta
- School of Pharmacy, Suresh Gyan Vihar University, Mahal Road, Jagatpura, Jaipur, India
| | - Niraj Kumar Jha
- Department of Biotechnology, School of Engineering & Technology (SET), Sharda University, Greater Noida, Uttar Pradesh 201310, India
| | - Krishnan Anand
- Department of Chemical Pathology, School of Pathology, Faculty of Health Sciences, National Health Laboratory Service, University of the Free State, Bloemfontein, South Africa
| | - Kamal Dua
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Australia
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Culbert KM, Sisk CL, Klump KL. A Narrative Review of Sex Differences in Eating Disorders: Is There a Biological Basis? Clin Ther 2021; 43:95-111. [PMID: 33375999 PMCID: PMC7902379 DOI: 10.1016/j.clinthera.2020.12.003] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 12/04/2020] [Accepted: 12/07/2020] [Indexed: 12/12/2022]
Abstract
PURPOSE Eating disorders and their core symptoms (eg, binge eating, body weight/shape concerns) disproportionately affect females, and these sex-differentiated effects become prominent during and after puberty. Although psychosocial influences such as heightened sociocultural pressures for thinness in girls and women contribute to this sex imbalance, biological factors could also play an important role. METHODS This narrative review summarizes evidence of biological factors underlying the sex-differentiated prevalence of eating pathology as well as within-sex variability in risk. FINDINGS There are sex differences in the pubertal emergence of genetic effects on eating pathology (adrenarche in males; gonadarche in females), and at least some genetic contributions to eating pathology seem to vary between the sexes. Furthermore, sex steroid hormones (eg, testosterone, estradiol, progesterone) are leading contributors to differential risk for eating pathology in males and females across the life span. Emerging data suggest that between-sex and within-sex variability in risk might occur via hormone-driven modulation (activation/deactivation) of genetic influences and neural responsiveness to food-related cues. IMPLICATIONS There is a biological basis to heightened risk for eating pathology in females, relative to males, as well as unique biological influences within each sex. Findings from this review highlight the importance of studying both sexes and considering sex-specific biological mechanisms that may underlie differential risk for eating pathology.
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Affiliation(s)
- Kristen M Culbert
- Department of Family Medicine and Public Health Sciences, Wayne State University School of Medicine, Detroit, MI, USA.
| | - Cheryl L Sisk
- Neuroscience Program, Michigan State University, East Lansing, MI, USA
| | - Kelly L Klump
- Department of Psychology, Michigan State University, East Lansing, MI, USA
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Ovariectomized rodents as a menopausal metabolic syndrome model. A minireview. Mol Cell Biochem 2020; 475:261-276. [PMID: 32852713 DOI: 10.1007/s11010-020-03879-4] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 08/07/2020] [Indexed: 12/20/2022]
Abstract
Bilateral ovariectomy is the best characterized and the most reported animal model of human menopause. Ovariectomized rodents develop insulin resistance (IR) and visceral obesity, the main risk factors in the pathophysiology of metabolic syndrome (MS). These alterations are a consequence of hypoestrogenic status, which produces an augment of visceral fat, high testosterone levels (hyperandrogenism), as well as inflammation, oxidative stress, and metabolic complications, such as dyslipidemia, hepatic steatosis, and endothelial dysfunction, among others. Clinical trials have reported that menopause per se increases the severity and incidence of MS, and causes the highest mortality due to cardiovascular disease in women. Despite all the evidence, there are no reports that clarify the influence of estrogenic deficiency as a cause of MS. In this review, we provide evidence that ovariectomized rodents can be used as a menopausal metabolic syndrome model for evaluating and discovering new, safe, and effective therapeutic approaches in the treatment of cardiometabolic complications associated to MS during menopause.
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Iwasa T, Matsuzaki T, Mayila Y, Kawakita T, Yanagihara R, Irahara M. The effects of chronic oxytocin administration on body weight and food intake in DHT-induced PCOS model rats. Gynecol Endocrinol 2020; 36:55-60. [PMID: 31220962 DOI: 10.1080/09513590.2019.1631276] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Polycystic ovary syndrome (PCOS) is commonly associated with metabolic disorders, which are exacerbated by obesity. Recent studies have revealed that oxytocin contributes to metabolic, appetite, and body weight regulation. In the present study, we evaluated the effects of chronic administration of oxytocin on body weight, food intake, and fat mass in a dihydrotestosterone-induced rat model of PCOS. Body weight, body weight change, and relative cumulative food intake were significantly lower in the oxytocin-treated PCOS rats than in the vehicle-treated control PCOS rats. Similarly, visceral adipocyte size was significantly smaller in the oxytocin-treated PCOS rats than in the vehicle-treated control PCOS rats. On the other hand, the numbers of cystic follicles in the ovary did not differ between the two groups. The chronic administration of oxytocin did not affect the rats' serum aspartate aminotransferase, alanine aminotransferase, or lactate dehydrogenase levels, indicating that it does not have adverse effects on hepatic function. These findings suggest that oxytocin could be a candidate drug for preventing the onset of obesity-related metabolic disorders in PCOS patients.
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Affiliation(s)
- Takeshi Iwasa
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Toshiya Matsuzaki
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Yiliyasi Mayila
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Takako Kawakita
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Rie Yanagihara
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Minoru Irahara
- Department of Obstetrics and Gynecology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
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Krug I, Giles S, Paganini C. Binge eating in patients with polycystic ovary syndrome: prevalence, causes, and management strategies. Neuropsychiatr Dis Treat 2019; 15:1273-1285. [PMID: 31190833 PMCID: PMC6529622 DOI: 10.2147/ndt.s168944] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 03/18/2019] [Indexed: 12/28/2022] Open
Abstract
Emerging evidence suggests that disordered eating, particularly binge-eating symptomatology, is overrepresented within Polycystic Ovary Syndrome (PCOS) populations. This comorbidity presents a clinical dilemma as current treatment approaches for PCOS emphasize the importance of weight management, diet, exercise, and the potential for harm of such treatment approaches in PCOS patients with comorbid disordered eating. However, limited research has assessed the occurrence of binge eating and disordered eating in PCOS patients. Consequently, little is known about the prevalence of binge eating in PCOS, and the possible etiological processes to explain this comorbidity remain poorly understood. Given the paucity of research on this topic, the aims of this narrative review are fourfold: 1) to outline the main symptoms of PCOS and binge eating; 2) to provide an overview of the prevalence of binge eating in PCOS; 3) to outline possible etiological factors for the comorbidity between PCOS and binge eating; and 4) to provide an overview of management strategies of binge eating in PCOS.
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Affiliation(s)
- Isabel Krug
- Melbourne School of Psychological Sciences, The University of Melbourne, Melbourne, VIC, Australia
| | - Sarah Giles
- Melbourne School of Psychological Sciences, The University of Melbourne, Melbourne, VIC, Australia
| | - Chiara Paganini
- Faculty of Health, University of Tasmania, Hobart, Tasmania, Australia
- Faculty of Health, Federation University, Ballarat, VIC, Australia
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