1
|
Gheit REAE, Younis RL, El-Saka MH, Emam MN, Soliman NA, El-Sayed RM, Hafez YM, AbuoHashish NA, Radwan DA, Khaled HE, Kamel S, Zaitone SA, Badawi GA. Irisin improves adiposity and exercise tolerance in a rat model of postmenopausal obesity through enhancing adipo-myocyte thermogenesis. J Physiol Biochem 2022; 78:897-913. [PMID: 35996069 PMCID: PMC9684260 DOI: 10.1007/s13105-022-00915-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 07/21/2022] [Indexed: 11/28/2022]
Abstract
The prevalence of obesity and its associated metabolic disorders, along with their healthcare costs, is rising exponentially. Irisin, an adipomyokine, may serve as a critical cross-organ messenger, linking skeletal muscle with adipose tissue and the liver to integrate the energy homeostasis under diet-induced obesity. We aimed to explore the putative role of irisin in the protection against obesity in a postmenopausal rat model by modulating energy expenditure (EE). Bilateral ovariectomy (OVX) was performed. After 3 weeks of recovery, the OVX rats were classified according to their dietary protocol into rats maintained on normal diets (ND) (OVX) or high-fat diet (HFD) groups. The HFD-fed animals were equally divided into OVX/HFD, or irisin-treated OVX/HFD groups. Sham rats, maintained on ND, were selected as the control group. We evaluated anthropometric, EE, and molecular biomarkers of browning and thermogenesis in inguinal white adipose tissue and skeletal muscle, and the activity of the proteins related to mitochondrial long chain fatty acid transport, oxidation, and glycolysis. HFD of OVX further deteriorated the disturbed glucose homeostasis, lipid profile, and the reduced irisin, thermogenic parameters in adipose tissue and skeletal muscle, and EE. Irisin treatment improved the lipid profile and insulin resistance. That was associated with reduced hepatic gluconeogenic enzyme activities and restored hepatic glycogen content. Irisin reduced ectopic lipid infiltration. Irisin augmented EE by activating non-shivering thermogenesis in muscle and adipose tissues and decreasing metabolic efficiency. Our experimental evidence suggests irisin's use as a potential thermogenic agent, therapeutically targeting obesity in postmenopausal patients. Irisin modulates the non-shivering thermogenesis in skeletal muscle and adipose tissue in postmenopausal model.
Collapse
Affiliation(s)
- Rehab E Abo El Gheit
- Department of Physiology, Faculty of Medicine, Tanta University, El Geesh Street, Tanta, Egypt.
| | - Reham L Younis
- Department of Physiology, Faculty of Medicine, Tanta University, El Geesh Street, Tanta, Egypt
| | - Mervat H El-Saka
- Department of Physiology, Faculty of Medicine, Tanta University, El Geesh Street, Tanta, Egypt
| | - Marwa N Emam
- Department of Physiology, Faculty of Medicine, Tanta University, El Geesh Street, Tanta, Egypt
| | - Nema A Soliman
- Medical Biochemistry Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Rehab M El-Sayed
- Department of Pharmacology & Toxicology, Faculty of Pharmacy, Sinai University, North Sinai, El-Arish, Egypt
| | - Yasser Mostafa Hafez
- Internal Medicine Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | | | - Doaa A Radwan
- Anatomy and Embryology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Howayda E Khaled
- Zoology Department, Faculty of Science, Suez Canal University, Ismailia, Egypt
| | - Samar Kamel
- Physiology Department, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, Egypt
| | - Sawsan A Zaitone
- Department of Pharmacology & Toxicology, Faculty of Pharmacy, Suez Canal University, Ismailia, 41522, Egypt
- Department of Pharmacology & Toxicology, Faculty of Pharmacy, University of Tabuk, Tabuk, 71451, Saudi Arabia
| | - Ghada A Badawi
- Department of Pharmacology & Toxicology, Faculty of Pharmacy, Sinai University, North Sinai, El-Arish, Egypt
| |
Collapse
|
2
|
Zhao Y, Wang Y, Hu L, Chen H, Xiao X, Li Z, Feng M, Yang P, Liu P, Zhang S, Xiao G, Liu J, Shen J, Bai X. Excess dietary zinc drives a Cushing's-like syndrome in ovariectomized mice - Implications for postmenopausal obesity. Biochem Biophys Res Commun 2022; 630:101-11. [PMID: 36152347 DOI: 10.1016/j.bbrc.2022.09.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 09/04/2022] [Accepted: 09/10/2022] [Indexed: 11/22/2022]
Abstract
Postmenopausal women have an increased risk of obesity, but the underlying cause is not clear. We unexpectedly found that excess dietary zinc induced severe obesity and a Cushing's-like syndrome without increased food intake in ovariectomized (Ovx) but not in sham-operated mice. Zinc accumulated in the adrenal glands and inhibited adrenal 17,20-lyase activity and steroid synthesis. As adrenal steroids are the only source of estrogen in Ovx mice, estrogen deficiency induced adrenal hyperplasia, glucocorticoid overproduction, and consequent development of a Cushing's-like syndrome. Adrenal steroid supplementation prevented the effects of zinc. Plasma zinc was positively correlated with cortisol level and negatively correlated with the levels of adrenal steroids and estrogen in obese postmenopausal women. The finding of a link between dietary zinc, estrogen deficiency, and postmenopausal obesity, implies that postmenopausal obesity might be prevented by supplementation with a adrenal steroid and avoiding excess dietary zinc.
Collapse
|
3
|
Luo ZH, Liu ZW, Mao Y, Shu R, Fu LC, Yang RY, Hu YJ, Shen XL. Cajanolactone A, a stilbenoid from cajanus cajan, prevents ovariectomy-induced obesity and liver steatosis in mice fed a regular diet. Phytomedicine 2020; 78:153290. [PMID: 32777485 DOI: 10.1016/j.phymed.2020.153290] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 07/03/2020] [Accepted: 07/23/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Visceral obesity and fatty liver are prevalent in postmenopausal women. The stilbene-rich extract of Cajanus cajan (L.) Millsp. has been reported to prevent ovariectomy-induced and diet-induced weight gain in animal models, and stilbenoids from C. cajan are thought to have the potential to prevent postmenopausal obesity and fatty liver. PURPOSE Cajanolactone A (CLA) is the main stilbenoid from C. cajan with osteoblastogenic promoting activity. This study investigated the potential of CLA to prevent postmenopausal obesity and fatty liver. Underlying mechanisms were also investigated. METHOD Ovariectomized C57BL/6 mice fed a regular diet were used as mimics of postmenopausal women and given 10, 20, or 40 mg/kg/d of CLA, 0.1 mg/kg/d of estradiol valerate (EV, positive control), or vehicle (OVX) orally for 16 weeks. Mice of the same age subjected to a sham operation were used as control (Sham). Body weights were recorded every 2 weeks for 16 weeks. Body compositions were analyzed via micro-CT. Serum levels of lipids, adipocytokines and aminotransferases were measured using the relevant kits. mRNA levels of genes of interest were detected by RT-qPCR. Proteomic study of perigonadal white adipose tissue (pWAT) was performed using tandem-mass-tags-based proteomic technology combined with Parallel-Reaction-Monitoring (PRM) validation. RESULTS CLA showed potential equivalent to that of EV to prevent ovariectomy-induced overweight, obesity, dyslipidemia, liver steatosis and liver dysfunction, but did not prevent uterine atrophy. In the liver, CLA significantly inhibited ovariectomy-induced upregulation in expression of lipogenic genes SREBP-1c and ChREBP, and stimulated the mRNA expression of apolipoprotein B gene ApoB. In pWAT, CLA reversed, or partially reversed ovariectomy-induced downregulation in the expression of a number of metabolism- and mitochondrial-function-related proteins, including Ndufa3, Pcx, Pdhb, Acly, Acaca, Aldh2, Aacs and Echs1. In addition, ovariectomy-inhibited mRNA expression of Pdhb, Aacs, Acsm5, Echs1, and Aldh2 genes in pWAT was also reversed. CONCLUSION CLA was demonstrated to be a potential non-estrogen-like drug candidate for prevention of postmenopausal obesity and fatty liver. The underlying mechanism might involve the inhibition of lipogenesis and promotion of triglycerides output in the liver, and the promotion of metabolism and mitochondrial functions of visceral white adipose tissue.
Collapse
Affiliation(s)
- Zhuo-Hui Luo
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong, PR China
| | - Zhi-Wen Liu
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong, PR China
| | - Yu Mao
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong, PR China
| | - Rong Shu
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong, PR China
| | - Lin-Chun Fu
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong, PR China
| | - Rui-Yi Yang
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong, PR China
| | - Ying-Jie Hu
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong, PR China.
| | - Xiao-Ling Shen
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong, PR China.
| |
Collapse
|
4
|
Liu T, Kamiyoshi A, Tanaka M, Iida S, Sakurai T, Ichikawa-Shindo Y, Kawate H, Hirabayashi K, Dai K, Cui N, Tanaka M, Wei Y, Nakamura K, Matsui S, Yamauchi A, Shindo T. RAMP3 deficiency enhances postmenopausal obesity and metabolic disorders. Peptides 2018; 110:10-18. [PMID: 30385288 DOI: 10.1016/j.peptides.2018.10.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 10/18/2018] [Accepted: 10/24/2018] [Indexed: 01/03/2023]
Abstract
There is a marked increase in the incidence of visceral adiposity and insulin resistance among women following menopause. Adrenomedullin (AM) is an endogenous peptide first identified as a vasodilator, but now known to exert a variety of physiological effects. RAMP3 is a receptor activity-modifying protein that binds to the AM receptor (calcitonin receptor-like receptor). As expression of both AM and RAMP3 is reportedly activated by estrogen, we hypothesized that RAMP3 is crucially involved in the pathophysiology of postmenopausal obesity. To test this idea, we compared the effects of ovariectomy (OVX) and a high-fat diet for 10 weeks (a model of postmenopausal obesity) between RAMP3 knockout (RAMP3-/-) and wild-type mice. RAMP3-/- OVX mice exhibited greater obesity and adipose tissue weight gain as compared to wild-type OVX mice. RAMP3-/- OVX mice also exhibited higher serum insulin levels. In periuterine WAT from RAMP3-/- OVX mice, expression of lipolysis-related factors was lower and expression of inflammation-related factors was higher than in wild-type OVX mice. Hepatic steatosis was also exacerbated in RAMP3-/- OVX. Notably, expression of the membrane-type estrogen receptor GPR30 was downregulated in periuterine WAT from RAMP3-/- OVX mice. These findings raise the possibility that a GPR30-RAMP3 interaction is involved in the pathophysiology of postmenopausal obesity and suggest RAMP3 plays a key role in the regulation of energy metabolism and exerts a hepatoprotective effect in this model of postmenopausal obesity. RAMP3 may thus be a useful therapeutic target for treatment of postmenopausal obesity and metabolic disorders.
Collapse
Affiliation(s)
- Teng Liu
- Department of Cardiovascular Research, Shinshu University Graduate School of Medicine, Japan
| | - Akiko Kamiyoshi
- Department of Cardiovascular Research, Shinshu University Graduate School of Medicine, Japan.
| | - Megumu Tanaka
- Department of Cardiovascular Research, Shinshu University Graduate School of Medicine, Japan
| | - Shiho Iida
- Department of Cardiovascular Research, Shinshu University Graduate School of Medicine, Japan
| | - Takayuki Sakurai
- Department of Cardiovascular Research, Shinshu University Graduate School of Medicine, Japan
| | - Yuka Ichikawa-Shindo
- Department of Cardiovascular Research, Shinshu University Graduate School of Medicine, Japan
| | - Hisaka Kawate
- Department of Cardiovascular Research, Shinshu University Graduate School of Medicine, Japan
| | - Kazutaka Hirabayashi
- Department of Cardiovascular Research, Shinshu University Graduate School of Medicine, Japan; Department of Ophthalmology, Shinshu University School of Medicine, Japan
| | - Kun Dai
- Department of Cardiovascular Research, Shinshu University Graduate School of Medicine, Japan
| | - Nanqi Cui
- Department of Cardiovascular Research, Shinshu University Graduate School of Medicine, Japan
| | - Masaaki Tanaka
- Department of Cardiovascular Research, Shinshu University Graduate School of Medicine, Japan; Department of Ophthalmology, Shinshu University School of Medicine, Japan
| | - Yangxuan Wei
- Department of Cardiovascular Research, Shinshu University Graduate School of Medicine, Japan
| | - Keisei Nakamura
- Department of Cardiovascular Research, Shinshu University Graduate School of Medicine, Japan
| | - Shuhei Matsui
- Department of Cardiovascular Research, Shinshu University Graduate School of Medicine, Japan; Department of Anesthesiology, Shinshu University School of Medicine, Japan
| | | | - Takayuki Shindo
- Department of Cardiovascular Research, Shinshu University Graduate School of Medicine, Japan
| |
Collapse
|
5
|
Grygiel-Górniak B, Kaczmarek E, Mosor M, Przysławski J, Nowak J. Gene-diet-related factors of hyperglycaemia in postmenopausal women. J Appl Genet 2018; 59:169-77. [PMID: 29464546 DOI: 10.1007/s13353-018-0434-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2017] [Revised: 02/01/2018] [Accepted: 02/11/2018] [Indexed: 11/18/2022]
Abstract
As ageing and increased body fat are the signs of insulin resistance, we have studied whether the presence of Pro12Ala and C1431T of peroxisome proliferator-activated receptor gamma 2 gene and Trp64Arg of beta 3-adrenergic receptor gene may predispose to the hyperglycaemia development in postmenopausal women, who have never undergone hypoglycaemic treatment. The distributions of selected allele and genotype frequencies were determined by the PCR–RFLP method in normo- and hyperglycaemic, who have never been diagnosed and treated for diabetes mellitus were measured. The amount of body fat and lean body mass (LBM) were assessed by the bioimpedance method and nutritional habits by 7-day dietary recall. There were no differences between the distribution of genotypes and the allele frequencies of the Pro12Ala, C1431T and Trp64Arg polymorphisms in normo- and hyperglycaemic women. Hyperglycaemic women were characterized by visceral obesity, hypertension, higher serum insulin and triglycerides, higher intake of fat and lower consumption of complex carbohydrates and B vitamins. Normoglycaemic women with Pro12Pro polymorphism acquired higher energy from dietary fat (p < 0.0276) and lower energy from carbohydrates (p < 0.0480) than normoglycaemic Ala12 carriers. Subjects with Pro12Pro polymorphism and LBM > 58% of total body mass or with Trp64Trp and normal triglycerides have higher chance of normoglycaemia. Genotyping for Pro12Ala and Trp64Arg polymorphism in postmenopausal women may have the clinical benefit of predicting hyperglycaemia, thereby contributing to the prevention of diabetes mellitus development in the future. However, not only the genetic background but also the dietary habits (intake of fat, carbohydrates and B vitamins) determine the risk of hyperglycaemia.
Collapse
|
6
|
Grygiel-Górniak B, Kaczmarek E, Mosor M, Przysławski J, Bogacz A. Genetic Background, Adipocytokines, and Metabolic Disorders in Postmenopausal Overweight and Obese Women. Biochem Genet 2016; 54:636-52. [PMID: 27246401 PMCID: PMC5018036 DOI: 10.1007/s10528-016-9743-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Accepted: 05/20/2016] [Indexed: 10/27/2022]
Abstract
The relationship between the genetic background, adipocytokines, and metabolic state in postmenopausal women has not yet been fully described. The aim of this study was to determine the relationship between PPAR gamma-2 (Pro12Ala, C1431T) and ADRB3 (Trp64Arg) polymorphisms and serum adipocytokines (adiponectin, visfatin, and resistin) and metabolic disorders in 176 postmenopausal women with increased body mass (BMI ≥ 25 kg m(-2)). The distributions of selected alleles and genotype frequencies were determined with the PCR-RFLP method. The bioimpedance method was used to determine nutritional status, and enzyme-linked immunosorbent assays were applied to determine serum concentrations of adipocytokines. Viscerally obese postmenopausal women had higher body mass, body fat content, serum glucose, insulin, total cholesterol, LDL, triglycerides, uric acid, and HOMA-IR and a higher prevalence of the Ala12 allele. In models based on cytokine concentration, higher body mass and glucose concentration (visfatin model, p = 0.008) and higher insulin and triglyceride levels (resistin model, p = 0.002) were observed in visceral fat deposition and this was potentiated by the presence of the T1431 allele. In resistin models, co-existence of Ala12/X polymorphisms with the T1431 allele was associated with higher resistin and triglyceride concentrations (p = 0.045). In postmenopausal women, metabolic parameters are mainly determined by the distribution of body fat, but Ala12/X polymorphism may increase the metabolic disorders and this effect can be enhanced by the T1431 allele.
Collapse
Affiliation(s)
- Bogna Grygiel-Górniak
- Department of Bromatology and Human Nutrition, Poznan University of Medical Sciences, Poznan, Poland. .,Department of Rheumatology and Internal Diseases, Poznan University of Medical Sciences, Poznan, Poland.
| | - Elżbieta Kaczmarek
- Department of Bioinformatics and Computational Biology, Poznan University of Medical Sciences, Poznan, Poland
| | - Maria Mosor
- Department of Molecular Pathology, Institute of Human Genetics, Polish Academy of Sciences, Poznan, Poland
| | - Juliusz Przysławski
- Department of Bromatology and Human Nutrition, Poznan University of Medical Sciences, Poznan, Poland
| | - Anna Bogacz
- Laboratory of Experimental Pharmacogenetics, Department of Clinical Pharmacy and Biopharmacy, Poznan University of Medical Sciences, Poznan, Poland
| |
Collapse
|