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Cai C, Zhu S, Qin M, Li X, Feng C, Yu B, Dai S, Qiu G, Li Y, Ye T, Zhong W, Shao Y, Zhang L, Jia P, Yang S. Long-term exposure to PM 2.5 chemical constituents and diabesity: evidence from a multi-center cohort study in China. THE LANCET REGIONAL HEALTH. WESTERN PACIFIC 2024; 47:101100. [PMID: 38881803 PMCID: PMC11179652 DOI: 10.1016/j.lanwpc.2024.101100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Revised: 04/30/2024] [Accepted: 05/08/2024] [Indexed: 06/18/2024]
Abstract
Background Long-term exposure to PM2.5 is known to increase the risks for diabetes and obesity, but its effects on their coexistence, termed diabesity, remain uncertain. This study aimed to investigate the associations of long-term exposure to PM2.5 and its chemical constituents with the risks for diabesity, diabetes, and obesity. Methods This cross-sectional study used the baseline data of a multi-center cohort, consisting of three provincially representative cohorts comprising a total of 134,403 participants from the eastern (Fujian Province), central (Hubei Province), and western (Yunnan Province) regions of China. Obesity and diabetes, and diabesity were identified by a body mass index (BMI) ≥28 kg/m2 and fasting plasma glucose (FPG) ≥126 mg/dL. The average concentrations of PM2.5 and five chemical constituents (NO3 -, SO4 2-, NH4 +, organic matter, and black carbon) over participants' residence during the past three years were estimated using machine learning models. Logistic regression models with double robust estimators, Bayesian kernel machine regression, and weighted quantile sum regression were employed to estimate independent and joint effects of PM2.5 chemical constituents on the risks for diabesity, diabetes, and obesity, as well as the differences from the effects on obesity. Stratified analyses were performed to examine effect modification of sociodemographic and lifestyle factors. Findings There were 129,244 participants with a mean age of 54.1 ± 13.8 years included in the study. Each interquartile range increase in PM2.5 concentration (8.53 μg/m3) was associated with an increased risk for diabesity (OR = 1.23 [1.17, 1.30]), diabetes only (OR = 1.16 [1.13, 1.19]), and obesity only (OR = 1.03 [1.00, 1.05]). Long-term exposure to each PM2.5 chemical constituent was associated with an increased risk for diabesity, where organic matter exposure, with maximum weight (48%), was associated with a higher risk for diabesity (OR = 1.21 [1.16, 1.27]). Among those with obesity, black carbon contributed most (68%) to the joint effect of PM2.5 chemical constituents on diabesity (OR = 1.16 [1.11, 1.22]). Physical activity reduced adverse effects of PM2.5 on diabesity. Also, additive rather than multiplicative effects of obesity on the PM2.5-diabetes association were observed. Interpretation Long-term exposure to PM2.5 and its chemical constituents was associated with an increased risk for diabesity, stronger than associations for diabetes and obesity alone. The main constituents associated with diabesity and obesity were black carbon and organic matter. Funding National Natural Science Foundation of China (42271433, 723B2017), National Key R&D Program of China (2023YFC3604702), Fundamental Research Funds for the Central Universities (2042023kfyq04, 2042024kf1024), the Science and Technology Major Project of Tibetan Autonomous Region of China (XZ202201ZD0001G), Science and technology project of Tibet Autonomous Region(XZ202303ZY0007G), Key R&D Project of Sichuan Province (2023YFS0251), Renmin Hospital of Wuhan University (JCRCYG-2022-003), Jiangxi Provincial 03 Special Foundation and 5G Program (20224ABC03A05), Wuhan University Specific Fund for Major School-level Internationalization Initiatives (WHU-GJZDZX-PT07).
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Affiliation(s)
- Changwei Cai
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China
- International Institute of Spatial Lifecourse Health (ISLE), Wuhan University, Wuhan, China
| | - Shuzhen Zhu
- Hubei Center for Disease Control and Prevention, Wuhan, China
| | - Mingfang Qin
- Yunnan Center for Disease Control and Prevention, Kunming, China
| | - Xiaoqing Li
- Fujian Provincial Center for Disease Control and Prevention, Fuzhou, China
| | - Chuanteng Feng
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China
- Institute for Disaster Management and Reconstruction, Sichuan University-The Hong Kong Polytechnic University, Chengdu, China
| | - Bin Yu
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China
- International Institute of Spatial Lifecourse Health (ISLE), Wuhan University, Wuhan, China
- Institute for Disaster Management and Reconstruction, Sichuan University-The Hong Kong Polytechnic University, Chengdu, China
| | - Shaoqing Dai
- International Institute of Spatial Lifecourse Health (ISLE), Wuhan University, Wuhan, China
- Faculty of Geo-information Science and Earth Observation, University of Twente, Enschede, the Netherlands
| | - Ge Qiu
- International Institute of Spatial Lifecourse Health (ISLE), Wuhan University, Wuhan, China
- School of Resource and Environmental Sciences, Wuhan University, Wuhan, China
| | - Yuchen Li
- International Institute of Spatial Lifecourse Health (ISLE), Wuhan University, Wuhan, China
- MRC Epidemiology Unit, University of Cambridge, Cambridge, UK
- Department of Geography, The Ohio State University, Columbus, OH, USA
| | - Tingting Ye
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China
| | - Wenling Zhong
- Fujian Provincial Center for Disease Control and Prevention, Fuzhou, China
| | - Ying Shao
- Yunnan Center for Disease Control and Prevention, Kunming, China
| | - Lan Zhang
- Hubei Center for Disease Control and Prevention, Wuhan, China
| | - Peng Jia
- International Institute of Spatial Lifecourse Health (ISLE), Wuhan University, Wuhan, China
- School of Resource and Environmental Sciences, Wuhan University, Wuhan, China
- Hubei Luojia Laboratory, Wuhan, China
- Renmin Hospital, Wuhan University, Wuhan, China
- School of Public Health, Wuhan University, Wuhan, China
| | - Shujuan Yang
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China
- International Institute of Spatial Lifecourse Health (ISLE), Wuhan University, Wuhan, China
- Department of Health Management Center, Clinical Medical College & Affiliated Hospital, Chengdu University, Chengdu, China
- Respiratory Department, Chengdu Seventh People's Hospital, Chengdu, China
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Nikolettos K, Vlahos N, Pagonopoulou O, Nikolettos N, Zikopoulos K, Tsikouras P, Kontomanolis E, Damaskos C, Garmpis N, Psilopatis I, Asimakopoulos B. The association between leptin, adiponectin levels and the ovarian reserve in women of reproductive age. Front Endocrinol (Lausanne) 2024; 15:1369248. [PMID: 38828407 PMCID: PMC11140125 DOI: 10.3389/fendo.2024.1369248] [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: 01/11/2024] [Accepted: 05/02/2024] [Indexed: 06/05/2024] Open
Abstract
Background Reproduction ability requires a certain amount of body fat that is necessary for ovulation, menstruation and pregnancy. Fat tissue represents an endocrine organ with high metabolic activity as it produces adipokines such as leptin and adiponectin. Our aim is to examine potential associations between women of reproductive age's ovarian reserves and their levels of leptin and adiponectin. Method 74 women between 19 and 40 years of age consented to take part. Based on the patterns of their ovarian reserves, the women were divided into three main groups: women with adequate ovarian reserves (AOR - Group A, n=30), women with polycystic ovary syndrome (PCOS - Group B, n=31) and women with depleted ovarian reserves (DOR - Group C, n=13). Among these groups, several biochemical and demographic parameters were statistically compared. Results Compared to the other two groups, women with DOR had statistically higher age and follicle stimulation hormone (FSH) levels. For estradiol (E2) and thyroid-stimulating hormone (TSH), no statistically significant difference was seen between the groups. In addition, women with PCOS had higher body mass index (BMI), luteinizing hormone (LH), total testosterone (TT), 17 hydroxyprogesterone (17-OHP), dehydroepiandrosterone (DHEA), anti-Mullerian hormone (AMH), and antral follicle count (AFC) than the other two groups. In line with expectations, women with DOR also had lower levels of AMH and AFC than the other two groups. Women with PCOS had higher leptin levels than the other two groups, but there was no statistically significant difference. Women with PCOS had lower levels of adiponectin than the other groups, however the difference was not statistically significant. Conclusion The way we classified women in our study according to their ovarian reserves is completely consistent with what has been published internationally. The ovarian reserve in women of reproductive age is not strongly correlated with leptin and adiponectin levels. For safe conclusions, more research including a greater number of samples is required.
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Affiliation(s)
- Konstantinos Nikolettos
- Obstetric and Gynecologic Clinic, Medical School, Democritus University of Thrace, Alexandroupolis, Greece
| | - Nikolaos Vlahos
- Second Department of Obstetrics and Gynecology, National and Kapodistrian University of Athens, School of Medicine, Aretaieion Hospital, Athens, Greece
| | - Olga Pagonopoulou
- Laboratory of Physiology, Faculty of Medicine, Democritus University of Thrace, Alexandroupolis, Greece
| | - Nikos Nikolettos
- Obstetric and Gynecologic Clinic, Medical School, Democritus University of Thrace, Alexandroupolis, Greece
| | | | - Panagiotis Tsikouras
- Obstetric and Gynecologic Clinic, Medical School, Democritus University of Thrace, Alexandroupolis, Greece
| | - Emmanouil Kontomanolis
- Obstetric and Gynecologic Clinic, Medical School, Democritus University of Thrace, Alexandroupolis, Greece
| | - Christos Damaskos
- Renal Transplatation Unit, Laiko General Hospital, Athens, Greece
- NSChristeas Laboratory of Experimental Surgery and Surgical Research, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Nikolaos Garmpis
- NSChristeas Laboratory of Experimental Surgery and Surgical Research, Medical School, National and Kapodistrian University of Athens, Athens, Greece
- Department of Surgery, Sotiria General Hospital, Athens, Greece
| | - Iason Psilopatis
- Department of Gynecology and Obstetrics, Universitätsklinikum Erlangen-Frauenklinik, Erlangen, Germany
| | - Byron Asimakopoulos
- Laboratory of Physiology, Faculty of Medicine, Democritus University of Thrace, Alexandroupolis, Greece
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Gómez-Hernández A, de las Heras N, Gálvez BG, Fernández-Marcelo T, Fernández-Millán E, Escribano Ó. New Mediators in the Crosstalk between Different Adipose Tissues. Int J Mol Sci 2024; 25:4659. [PMID: 38731880 PMCID: PMC11083914 DOI: 10.3390/ijms25094659] [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: 03/22/2024] [Revised: 04/19/2024] [Accepted: 04/22/2024] [Indexed: 05/13/2024] Open
Abstract
Adipose tissue is a multifunctional organ that regulates many physiological processes such as energy homeostasis, nutrition, the regulation of insulin sensitivity, body temperature, and immune response. In this review, we highlight the relevance of the different mediators that control adipose tissue activity through a systematic review of the main players present in white and brown adipose tissues. Among them, inflammatory mediators secreted by the adipose tissue, such as classical adipokines and more recent ones, elements of the immune system infiltrated into the adipose tissue (certain cell types and interleukins), as well as the role of intestinal microbiota and derived metabolites, have been reviewed. Furthermore, anti-obesity mediators that promote the activation of beige adipose tissue, e.g., myokines, thyroid hormones, amino acids, and both long and micro RNAs, are exhaustively examined. Finally, we also analyze therapeutic strategies based on those mediators that have been described to date. In conclusion, novel regulators of obesity, such as microRNAs or microbiota, are being characterized and are promising tools to treat obesity in the future.
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Affiliation(s)
- Almudena Gómez-Hernández
- Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad Complutense de Madrid, Plaza Ramón y Cajal, s/n, 28040 Madrid, Spain; (A.G.-H.); (B.G.G.); (T.F.-M.); (E.F.-M.)
| | - Natalia de las Heras
- Departamento de Fisiología, Facultad de Medicina, Universidad Complutense de Madrid, Plaza Ramón y Cajal, s/n, 28040 Madrid, Spain;
| | - Beatriz G. Gálvez
- Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad Complutense de Madrid, Plaza Ramón y Cajal, s/n, 28040 Madrid, Spain; (A.G.-H.); (B.G.G.); (T.F.-M.); (E.F.-M.)
| | - Tamara Fernández-Marcelo
- Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad Complutense de Madrid, Plaza Ramón y Cajal, s/n, 28040 Madrid, Spain; (A.G.-H.); (B.G.G.); (T.F.-M.); (E.F.-M.)
| | - Elisa Fernández-Millán
- Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad Complutense de Madrid, Plaza Ramón y Cajal, s/n, 28040 Madrid, Spain; (A.G.-H.); (B.G.G.); (T.F.-M.); (E.F.-M.)
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
| | - Óscar Escribano
- Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad Complutense de Madrid, Plaza Ramón y Cajal, s/n, 28040 Madrid, Spain; (A.G.-H.); (B.G.G.); (T.F.-M.); (E.F.-M.)
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
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Dong X, Zou M, Li C, Luo H, Zhu S, Gong Z. Leptin receptor Gln223Arg and Lys109Arg polymorphisms may be associated with HBV-related hepatocellular carcinoma risk: A system review and meta-analysis. ENVIRONMENTAL TOXICOLOGY 2024. [PMID: 38634192 DOI: 10.1002/tox.24286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 03/22/2024] [Accepted: 03/31/2024] [Indexed: 04/19/2024]
Abstract
Increasing evidence has suggested a strong association of hepatocellular carcinoma (HCC) susceptibility and Gln223Arg (rs1137101) and Lys109Arg (rs1137100) polymorphisms in leptin receptor (LEPR) genes. To provide a quantitative assessment for such correlation, we reviewed all related systems and conducted meta-analysis for case and control researches. A literature search of Web of Science, EMBASE, PubMed, Scopus as well as China National Knowledge Infrastructure databases was collected. 95% confidence intervals (95% CIs) together with odds ratios (ORs) were calculated. Five case-control researches consisting of 1323 cases and 1919 control cases were incorporated into meta-analysis. Researches indicated A-allelic and AA genotype of rs1137101 were substantially related to boosted susceptibility of hepatitis B virus (HBV)-related HCC (mutant model, OR = 1.81, 95% CI = 1.36-2.41, p < .001; allelic model, OR = 1.55, 95% CI = 1.32-1.83, p < .001). On the contrary, we observed GG genotype of rs1137101 substantially related to reduced risk of HBV-related HCC (wild model, OR 0.59, 95%CI = 0.46-0.75, p < .001). We observed AA genotype of rs1137100 relevant to boosted HCC risk (mutant model, OR = 1.51, 95%CI = 1.14-2.01, p = .005) as well as in those with HBV-related HCCs (homozygous model, OR = 2.12, 95%CI = 1.49-3.02, p < .001; mutant model, OR = 1.67, 95%CI = 1.23-2.26, p = .001). G-allele and AA genotype of rs1137101 might be in connection with boosted HBV-related HCC susceptibility, and wild-type GG genotype might prevent diseases. AA genotype of rs1137100 might also improve HBV-related HCC susceptibility. Such conclusions ought to be validated by larger and better-designed researches.
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Affiliation(s)
- Xiaofeng Dong
- Department of Hepatobiliary, Pancreas and Spleen Surgery, The People's Hospital of Guangxi Zhuang Autonomous Region, Guangxi Academy of Medical Sciences, Nanning, China
| | - Mengjie Zou
- Department of Nephrology, The People's Hospital of Guangxi Zhuang Autonomous Region, Guangxi Academy of Medical Sciences, Nanning, China
| | - Chunxing Li
- Department of Operating Room, The People's Hospital of Guangxi Zhuang Autonomous Region, Guangxi Academy of Medical Sciences, Nanning, China
| | - Honglin Luo
- Institute of Oncology, The People's Hospital of Guangxi Zhuang Autonomous Region, Guangxi Academy of Medical Sciences, Nanning, China
| | - Shaoliang Zhu
- Department of Hepatobiliary, Pancreas and Spleen Surgery, The People's Hospital of Guangxi Zhuang Autonomous Region, Guangxi Academy of Medical Sciences, Nanning, China
| | - Zheng Gong
- Department of Anesthesiology, The People's Hospital of Guangxi Zhuang Autonomous Region, Guangxi Academy of Medical Sciences, Nanning, China
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Zandawala M, Gera J. Leptin- and cytokine-like unpaired signaling in Drosophila. Mol Cell Endocrinol 2024; 584:112165. [PMID: 38266772 DOI: 10.1016/j.mce.2024.112165] [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: 11/15/2023] [Revised: 01/13/2024] [Accepted: 01/19/2024] [Indexed: 01/26/2024]
Abstract
Animals have evolved a multitude of signaling pathways that enable them to orchestrate diverse physiological processes to tightly regulate systemic homeostasis. This signaling is mediated by various families of peptide hormones and cytokines that are conserved across the animal kingdom. In this review, we primarily focus on the unpaired (Upd) family of proteins in Drosophila which are evolutionarily related to mammalian leptin and the cytokine interleukin 6. We summarize expression patterns of Upd in Drosophila and discuss the parallels in structure, signaling pathway, and functions between Upd and their mammalian counterparts. In particular, we focus on the roles of Upd in governing metabolic homeostasis, growth and development, and immune responses. We aim to stimulate future studies on leptin-like signaling in other phyla which can help bridge the evolutionary gap between insect Upd and vertebrate leptin and cytokines like interleukin 6.
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Affiliation(s)
- Meet Zandawala
- Neurobiology and Genetics, Theodor-Boveri Institute, Biocenter, University of Würzburg, 97074, Würzburg, Germany; Department of Biochemistry and Molecular Biology, University of Nevada, Reno, NV, 89557, USA.
| | - Jayati Gera
- Neurobiology and Genetics, Theodor-Boveri Institute, Biocenter, University of Würzburg, 97074, Würzburg, Germany
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Park S, Shimokawa I. Influence of Adipokines on Metabolic Dysfunction and Aging. Biomedicines 2024; 12:873. [PMID: 38672227 PMCID: PMC11048512 DOI: 10.3390/biomedicines12040873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 04/12/2024] [Accepted: 04/12/2024] [Indexed: 04/28/2024] Open
Abstract
Currently, 30% of the global population is overweight or obese, with projections from the World Obesity Federation suggesting that this figure will surpass 50% by 2035. Adipose tissue dysfunction, a primary characteristic of obesity, is closely associated with an increased risk of metabolic abnormalities, such as hypertension, hyperglycemia, and dyslipidemia, collectively termed metabolic syndrome. In particular, visceral fat accretion is considered as a hallmark of aging and is strongly linked to higher mortality rates in humans. Adipokines, bioactive peptides secreted by adipose tissue, play crucial roles in regulating appetite, satiety, adiposity, and metabolic balance, thereby rendering them key players in alleviating metabolic diseases and potentially extending health span. In this review, we elucidated the role of adipokines in the development of obesity and related metabolic disorders while also exploring the potential of certain adipokines as candidates for longevity interventions.
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Affiliation(s)
- Seongjoon Park
- Department of Pathology, Graduate School of Biomedical Sciences, Nagasaki University School of Medicine, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan;
| | - Isao Shimokawa
- Department of Pathology, Graduate School of Biomedical Sciences, Nagasaki University School of Medicine, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan;
- SAGL, Limited Liability Company, 1-4-34, Kusagae, Chuo-ku, Fukuoka 810-0045, Japan
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Hassell Sweatman CZW. Modelling remission from overweight type 2 diabetes reveals how altering advice may counter relapse. Math Biosci 2024; 371:109180. [PMID: 38518862 DOI: 10.1016/j.mbs.2024.109180] [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: 10/16/2023] [Revised: 02/22/2024] [Accepted: 03/13/2024] [Indexed: 03/24/2024]
Abstract
The development or remission of diet-induced overweight type 2 diabetes involves many biological changes which occur over very different timescales. Remission, defined by HbA1c<6.5%, or fasting plasma glucose concentration G<126 mg/dl, may be achieved rapidly by following weight loss guidelines. However, remission is often short-term, followed by relapse. Mathematical modelling provides a way of investigating a typical situation, in which patients are advised to lose weight and then maintain fat mass, a slow variable. Remission followed by relapse, in a modelling sense, is equivalent to changing from a remission trajectory with steady state G<126 mg/dl, to a relapse trajectory with steady state G≥126 mg/dl. Modelling predicts that a trajectory which maintains weight will be a relapse trajectory, if the fat mass chosen is too high, the threshold being dependent on the lipid to carbohydrate ratio of the diet. Modelling takes into account the effects of hepatic and pancreatic lipid on hepatic insulin sensitivity and β-cell function, respectively. This study leads to the suggestion that type 2 diabetes remission guidelines be given in terms of model parameters, not variables; that is, the patient should adhere to a given nutrition and exercise plan, rather than achieve a certain subset of variable values. The model predicts that calorie restriction, not weight loss, initiates remission from type 2 diabetes; and that advice of the form 'adhere to the diet and exercise plan' rather than 'achieve a certain weight loss' may help counter relapse.
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Affiliation(s)
- Catherine Z W Hassell Sweatman
- School of Engineering, Computer and Mathematical Sciences, Auckland University of Technology, 55 Wellesley Street East, Auckland 1010, New Zealand.
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Zyguła A, Sankiewicz A, Sakowicz A, Dobrzyńska E, Dakowicz A, Mańka G, Kiecka M, Spaczynski R, Piekarski P, Banaszewska B, Jakimiuk A, Issat T, Rokita W, Młodawski J, Szubert M, Sieroszewski P, Raba G, Szczupak K, Kluza T, Kluza M, Pierzyński P, Wojtyla C, Lipa M, Warzecha D, Wielgos M, Cendrowski K, Gorodkiewicz E, Laudanski P. Is the leptin/BMI ratio a reliable biomarker for endometriosis? Front Endocrinol (Lausanne) 2024; 15:1359182. [PMID: 38567305 PMCID: PMC10985179 DOI: 10.3389/fendo.2024.1359182] [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: 12/20/2023] [Accepted: 03/04/2024] [Indexed: 04/04/2024] Open
Abstract
Background The aim of this study was to analyze the concentration of leptin in peritoneal fluid and plasma and to assess their role as potential biomarkers in the diagnosis of endometriosis. Materials & methods Leptin adjusted for BMI (leptin/BMI ratio) was measured using surface plasmon resonance imaging (SPRI) biosensors. Patients with suspected endometriosis were included in the study. Plasma was collected from 70 cases, and peritoneal fluid from 67 cases. Based on the presence of endometriosis lesions detected during laparoscopy, patients were divided into a study group and a control group (patients without endometriosis). Results Leptin/BMI ratio in plasma did not differ between women with endometriosis and the control group (0.7159 ± 0.259 vs 0.6992 ± 0.273, p= 0,7988). No significant differences were observed in peritoneal leptin/BMI ratio levels in patients with and without endometriosis (0.6206 ± 0.258 vs 0.6215 ± 0.264, p= 0,9896). Plasma and peritoneal leptin/BMI ratios were significantly lower in women with endometriosis - related primary infertility compared to women with endometriosis without primary infertility (0.640 ± 0.502 vs 0.878 ± 0.623, p < 0.05). The difference was observed in case of primary infertility, but not in terms of the secondary one. No significant differences were noted between leptin/BMI ratio in the proliferative phase and the secretory phase (0.716 ± 0.252 vs 0.697 ± 0.288, p= 0,7785). Conclusion The results of present study do not support the relevance of leptin concentration determination as a biomarker of the endometriosis. Due to the limited number of samples in the tested group, further studies are needed to confirm its role.
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Affiliation(s)
| | - Anna Sankiewicz
- Bioanalysis Laboratory, Faculty of Chemistry, University of Bialystok, Bialystok, Poland
| | - Agata Sakowicz
- Department of Medical Biotechnology, Medical University of Lodz, Lodz, Poland
| | - Ewa Dobrzyńska
- Chair and Department of Obstetrics, Gynecology and Gynecological Oncology, Medical University of Warsaw, Warsaw, Poland
| | - Agnieszka Dakowicz
- Department of Rehabilitation, Medical University of Bialystok, Bialystok, Poland
| | | | | | - Robert Spaczynski
- Center for Gynecology, Obstetrics and Infertility Treatment Pastelova, Poznan, Poland
- Collegium Medicum, University of Zielona Gora, Zielona Gora, Poland
| | - Piotr Piekarski
- Gynecological Obstetric Clinical Hospital of Poznan University of Medical Sciences, Minimally Invasive Gynecological Surgery, Poznan, Poland
| | - Beata Banaszewska
- Chair and Department of Laboratory Diagnostics, Poznan University of Medical Sciences, Poznan, Poland
| | - Artur Jakimiuk
- Department of Reproductive Health, Institute of Mother and Child in Warsaw, Warsaw, Poland
- Department of Obstetrics and Gynecology, Central Clinical Hospital of the Ministry of Interior, Warsaw, Poland
| | - Tadeusz Issat
- Department of Obstetrics and Gynecology, Institute of Mother and Child in Warsaw, Warsaw, Poland
| | - Wojciech Rokita
- Collegium Medicum, Jan Kochanowski University in Kielce, Kielce, Poland
- Clinic of Obstetrics and Gynecology, Provincial Combined Hospital in Kielce, Kielce, Poland
| | - Jakub Młodawski
- Collegium Medicum, Jan Kochanowski University in Kielce, Kielce, Poland
- Clinic of Obstetrics and Gynecology, Provincial Combined Hospital in Kielce, Kielce, Poland
| | - Maria Szubert
- Department of Gynecology and Obstetrics, Medical University of Lodz, Lodz, Poland
- Department of Surgical Gynecology and Oncology, Medical University of Lodz, Lodz, Poland
| | - Piotr Sieroszewski
- Department of Gynecology and Obstetrics, Medical University of Lodz, Lodz, Poland
- Department of Fetal Medicine and Gynecology, Medical University of Lodz, Lodz, Poland
| | - Grzegorz Raba
- Clinic of Obstetric and Gynecology in Przemysl, Przemysl, Poland
- Medical College of Rzeszow University, Rzeszow, Poland
| | - Kamil Szczupak
- Clinic of Obstetric and Gynecology in Przemysl, Przemysl, Poland
- Medical College of Rzeszow University, Rzeszow, Poland
| | - Tomasz Kluza
- Department of Gynecology, Gynecology Oncology and Obstetrics, Institute of Medical Sciences, Medical College of Rzeszow University, Rzeszow, Poland
| | - Marek Kluza
- Department of Gynecology, Gynecology Oncology and Obstetrics, Institute of Medical Sciences, Medical College of Rzeszow University, Rzeszow, Poland
| | | | - Cezary Wojtyla
- OVIklinika Infertility Center, Warsaw, Poland
- Women’s Health Research Institute, Calisia University, Kalisz, Poland
| | - Michal Lipa
- Departament of Obstetrics and Perinatology National Medical Institute of the Ministry of Interior and Administration, Warsaw, Poland
| | - Damian Warzecha
- OVIklinika Infertility Center, Warsaw, Poland
- City South Hospital, Warsaw, Warsaw, Poland
- Department of Biomedical Fundamentals of Development and Sexology, Faculty of Education, University of Warsaw, Warsaw, Poland
| | - Miroslaw Wielgos
- Departament of Obstetrics and Perinatology National Medical Institute of the Ministry of Interior and Administration, Warsaw, Poland
- Premium Medical Clinic, Warsaw, Poland
- Medical Faculty, Lazarski University, Warsaw, Poland
| | - Krzysztof Cendrowski
- Chair and Department of Obstetrics, Gynecology and Gynecological Oncology, Medical University of Warsaw, Warsaw, Poland
| | - Ewa Gorodkiewicz
- Bioanalysis Laboratory, Faculty of Chemistry, University of Bialystok, Bialystok, Poland
| | - Piotr Laudanski
- OVIklinika Infertility Center, Warsaw, Poland
- Chair and Department of Obstetrics, Gynecology and Gynecological Oncology, Medical University of Warsaw, Warsaw, Poland
- Women’s Health Research Institute, Calisia University, Kalisz, Poland
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Zhao BC, Wang TH, Chen J, Qiu BH, Xu YR, Li JL. Essential oils improve nursery pigs' performance and appetite via modulation of intestinal health and microbiota. ANIMAL NUTRITION (ZHONGGUO XU MU SHOU YI XUE HUI) 2024; 16:174-188. [PMID: 38357573 PMCID: PMC10864218 DOI: 10.1016/j.aninu.2023.10.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 07/22/2023] [Accepted: 10/12/2023] [Indexed: 02/16/2024]
Abstract
Optimal intestinal health and functionality are essential for animal health and performance, and simultaneously intestinal nutrient transporters and intestinal peptides are also involved in appetite and feed intake control mechanisms. Given the potential of essential oil (EO) in improving animal performance and improving feed palatability, we hypothesized that dietary supplementation of cinnamaldehyde and carvacrol could improve performance and appetite of nursery pigs by modulating intestinal health and microbiota. Cinnamaldehyde (100 mg/kg), carvacrol (100 mg/kg), and their mixtures (including 50 mg/kg cinnamaldehyde and 50 mg/kg carvacrol) were supplemented into the diets of 240 nursery pigs for 42 d, and data related to performance were measured. Thereafter, the influence of EO on intestinal health, appetite and gut microbiota and their correlations were explored. EO supplementation increased (P < 0.05) the body weight, average daily gain (ADG) and average daily feed intake (ADFI) of piglets, and reduced (P < 0.05) diarrhea rates in nursery pigs. Furthermore, EO increased (P < 0.05) the intestinal absorption area and the abundance of tight junction proteins, and decreased (P < 0.05) intestinal permeability and local inflammation. In terms of intestinal development and the mucus barrier, EO promoted intestinal development and increased (P < 0.05) the number of goblet cells. Additionally, we found that piglets in the EO-supplemented group had upregulated (P < 0.05) levels of transporters and digestive enzymes in the intestine, which were significantly associated with daily gain and feed utilization. In addition, EO supplementation somewhat improved appetite in nursery pigs, increased the diversity of the gut microbiome and the abundance of beneficial bacteria, and there was a correlation between altered bacterial structure and appetite-related hormones. These findings indicate that EO is effective in promoting growth performance and nutrient absorption as well as in regulating appetite by improving intestinal health and bacterial structure.
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Affiliation(s)
- Bi-Chen Zhao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Tian-Hao Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Jian Chen
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Bai-Hao Qiu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Ya-Ru Xu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Jin-Long Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin, 150030, China
- Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin, 150030, China
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LA Padula D, Zavaglia L, Hamad T, Nocito MC, Aquila S, Avena P, Rago V. Leptin effects: focusing on the relationship between obesity and male infertility. Minerva Endocrinol (Torino) 2024; 49:100-110. [PMID: 36251021 DOI: 10.23736/s2724-6507.22.03901-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The human male infertility has several causes interconnected to improper lifestyles such as smoking, sedentarism, environmental factors, toxins accumulation and energy imbalances. All these factors contribute to the obesity accompanied metabolic syndrome and hormonal alterations in the leptin-ghrelin axis. The leptin (Lep) has many pleiotropic effects in several biological systems, directly on the peripheral tissues or through the central nervous system. Many studies suggest that Lep is a key player in gonadal functions beside its documented role in reproductive regulation; however, further investigations are still necessary to elucidate all the molecular pathways involved in these mechanisms. Keeping into account that increased Lep levels in obese men are positively correlated with altered sperm parameters and testicular oxidative stress, evidence refers to Lep as a potential link between obesity and male infertility. This review represents an updated version on the concept of the Lep roles in mediating the male reproductive functions in obese patients.
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Affiliation(s)
- Davide LA Padula
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Arcavacata di Rende, Cosenza, Italy
| | - Lucia Zavaglia
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Arcavacata di Rende, Cosenza, Italy
| | - Tarig Hamad
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Arcavacata di Rende, Cosenza, Italy
| | - Marta C Nocito
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Arcavacata di Rende, Cosenza, Italy
| | - Saveria Aquila
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Arcavacata di Rende, Cosenza, Italy
| | - Paola Avena
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Arcavacata di Rende, Cosenza, Italy
| | - Vittoria Rago
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Arcavacata di Rende, Cosenza, Italy -
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Vilariño-García T, Polonio-González ML, Pérez-Pérez A, Ribalta J, Arrieta F, Aguilar M, Obaya JC, Gimeno-Orna JA, Iglesias P, Navarro J, Durán S, Pedro-Botet J, Sánchez-Margalet V. Role of Leptin in Obesity, Cardiovascular Disease, and Type 2 Diabetes. Int J Mol Sci 2024; 25:2338. [PMID: 38397015 PMCID: PMC10888594 DOI: 10.3390/ijms25042338] [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: 12/29/2023] [Revised: 02/07/2024] [Accepted: 02/09/2024] [Indexed: 02/25/2024] Open
Abstract
Diabetes mellitus (DM) is a highly prevalent disease worldwide, estimated to affect 1 in every 11 adults; among them, 90-95% of cases are type 2 diabetes mellitus. This is partly attributed to the surge in the prevalence of obesity, which has reached epidemic proportions since 2008. In these patients, cardiovascular (CV) risk stands as the primary cause of morbidity and mortality, placing a substantial burden on healthcare systems due to the potential for macrovascular and microvascular complications. In this context, leptin, an adipocyte-derived hormone, plays a fundamental role. This hormone is essential for regulating the cellular metabolism and energy balance, controlling inflammatory responses, and maintaining CV system homeostasis. Thus, leptin resistance not only contributes to weight gain but may also lead to increased cardiac inflammation, greater fibrosis, hypertension, and impairment of the cardiac metabolism. Understanding the relationship between leptin resistance and CV risk in obese individuals with type 2 DM (T2DM) could improve the management and prevention of this complication. Therefore, in this narrative review, we will discuss the evidence linking leptin with the presence, severity, and/or prognosis of obesity and T2DM regarding CV disease, aiming to shed light on the potential implications for better management and preventive strategies.
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Affiliation(s)
- Teresa Vilariño-García
- Department of Medical Biochemistry and Molecular Biology, and Immunology, School of Medicine, Virgen del Rocio University Hospital, University of Seville, Seville 41013, Spain;
| | - María L. Polonio-González
- Department of Medical Biochemistry and Molecular Biology, and Immunology, School of Medicine, Virgen Macarena University Hospital, University of Seville, 41009, Spain; (M.L.P.-G.); (A.P.-P.)
| | - Antonio Pérez-Pérez
- Department of Medical Biochemistry and Molecular Biology, and Immunology, School of Medicine, Virgen Macarena University Hospital, University of Seville, 41009, Spain; (M.L.P.-G.); (A.P.-P.)
| | - Josep Ribalta
- Departament de Medicina i Cirurgia, University Rovira i Vigili, IISPV, CIBERDEM, 43007 Tarragona, Spain;
| | - Francisco Arrieta
- Endocrinology and Nutrition Service, Ramón y Cajal University Hospital, 28034 Madrid, Spain;
| | - Manuel Aguilar
- Endocrinology and Nutrition Service, Puerta del Mar University Hospital, Instituto de Investigación e Innovación en Ciencias Biomédicas de la Provincia de Cádiz (INiBICA), Cádiz University (UCA), 11001 Cádiz, Spain;
| | - Juan C. Obaya
- Chopera Helath Center, Alcobendas Primary Care,Alcobendas 28100 Madrid, Spain;
| | - José A. Gimeno-Orna
- Endocrinology and Nutrition Department, Hospital Clinico Universitario Lozano Blesa, 15 50009 Zaragoza, Spain;
| | - Pedro Iglesias
- Endocrinology and Nutrition Service, Puerta de Hierro University Hospital, Majadahonda, 28220 Madrid, Spain;
| | - Jorge Navarro
- Hospital Clínico Universitario de Valencia,46011 Valencia, Spain;
| | - Santiago Durán
- Endodiabesidad Clínica Durán & Asociados,41018 Seville, Spain;
| | - Juan Pedro-Botet
- Lipids and Cardiovascular Risk Unit, Hospital del Mar, Autonomous University of Barcelona, 08003 Barcelona, Spain;
| | - Víctor Sánchez-Margalet
- Department of Medical Biochemistry and Molecular Biology, and Immunology, School of Medicine, Virgen Macarena University Hospital, University of Seville, 41009, Spain; (M.L.P.-G.); (A.P.-P.)
- Institute of Biomedicine of Seville (IBIS), Hospital Universitario Virgen del Rocío/Virgen Macarena, CSIC, Universidad de Sevilla, 41013 Seville, Spain
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12
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Partsalaki I, Markantes GK, Michalaki MA. Low-Glycemic Load Diets and Thyroid Function: A Narrative Review and Future Perspectives. Nutrients 2024; 16:347. [PMID: 38337632 PMCID: PMC10857036 DOI: 10.3390/nu16030347] [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: 01/19/2024] [Accepted: 01/22/2024] [Indexed: 02/12/2024] Open
Abstract
Nutrition and calorie intake are associated with subtle changes of thyroid function tests in subjects with an intact Hypothalamic-Pituitary-Thyroid axis. Iodine deficiency and extreme fluctuations in calorie intake, such as those that occur during periods of starvation or overfeeding could lead to alterations in thyroid hormones. The dietary macronutrient and micronutrient composition could also influence the thyroid function. Recently, Low-Glycemic Load (LGL) diets have become very popular and are effective in the treatment and/or prevention of several medical conditions, including diabetes, obesity, cardiovascular disease, and epilepsy. In this review, we report on the available data from the literature regarding the association between LGL diets and thyroid function or dysfunction. Several studies conducted in this field to date have yielded inconsistent results.
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Affiliation(s)
- Ioanna Partsalaki
- Department of Nutrition and Dietetics, University Hospital of Patras, 26504 Rio, Greece;
| | - Georgios K. Markantes
- Division of Endocrinology, Department of Internal Medicine, School of Health Sciences, University of Patras, 26504 Rio, Greece;
| | - Marina A. Michalaki
- Division of Endocrinology, Department of Internal Medicine, School of Health Sciences, University of Patras, 26504 Rio, Greece;
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Yang X, Deng H, Lv J, Chen X, Zeng L, Weng J, Liang H, Xu W. Comparison of changes in adipokine and inflammatory cytokine levels in patients with newly diagnosed type 2 diabetes treated with exenatide, insulin, or pioglitazone: A post-hoc study of the CONFIDENCE trial. Heliyon 2024; 10:e23309. [PMID: 38169889 PMCID: PMC10758788 DOI: 10.1016/j.heliyon.2023.e23309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 11/23/2023] [Accepted: 11/30/2023] [Indexed: 01/05/2024] Open
Abstract
Background Adipokines and inflammatory cytokines (ADICs) play important roles in type 2 diabetes mellitus (T2DM). This study aimed to compare the changes of ADIC levels (ΔADICs) in patients with newly diagnosed T2DM treated with different antihyperglycemic agents, and further investigate the impact of these changes on metabolic indices, β-cell function and insulin resistance (IR). Methods Four hundred and sixteen patients with newly diagnosed T2DM from 25 centers in China randomly received 48-week intervention with exenatide, insulin or pioglitazone. Anthropometric and laboratory data, indices of β-cell function and IR, and levels of AIDCs, including interleukin-1 beta (IL-1β), interferon-gamma (IFN-γ), leptin, and fibroblast growth factor 21 (FGF21) were detected at baseline and the end of the study. Results In total, 281 participants (68 % male, age: 50.3 ± 9.4 years) completed the study. After 48- week treatment, IL-1β and IFN-γ were significantly decreased with exenatide treatment (P < 0.001 and P = 0.001, respectively), but increased with insulin (P = 0.009 and P = 0.026, respectively). However, pioglitazone treatment had no impact on ADICs. No significant change in leptin or FGF21 was detected with any of the treatments. After adjustment for baseline values and changes of body weight, waist and HbA1c, the between-group differences were found in ΔIL-1β (exenatide vs. insulin: P = 0.048; and exenatide vs. pioglitazone: P = 0.003, respectively) and ΔIFN-γ (exenatide vs. insulin: P = 0.049; and exenatide vs. pioglitazone: P < 0.001, respectively). Multiple linear regression analysis indicated that Δweight was associated with ΔIL-1β (β = 0.753; 95 % CI, 0.137-1.369; P = 0.017). After adjusting for treatment effects, Δweight was also be correlated with ΔFGF21 (β = 1.097; 95%CI, 0.250-1.944; P = 0.012); furthermore, ΔHOMA-IR was correlated with Δleptin (β = 0.078; 95%CI, 0.008-0.147; P = 0.029) as well. However, ΔHOMA-IR was not significantly associated with ΔIL-1β after adjusting for treatment effects (P = 0.513). Conclusion Exenatide treatment led to significant changes of inflammatory cytokines levels (IL-1β and IFN-γ), but not adipokines (leptin and FGF21), in newly diagnosed T2DM patients. The exenatide-mediated improvement in weight and IR may be associated with a decrease in inflammatory cytokine levels.
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Affiliation(s)
- Xubin Yang
- Department of Endocrinology and Metabolism, the 3rd Affiliated Hospital of Sun Yat-sen University. NO.600, Tianhe Road, Tianhe District, Guangzhou, Guangdong, 510630, China
| | - Hongrong Deng
- Department of Endocrinology and Metabolism, the 3rd Affiliated Hospital of Sun Yat-sen University. NO.600, Tianhe Road, Tianhe District, Guangzhou, Guangdong, 510630, China
| | - Jing Lv
- Department of Endocrinology and Metabolism, the 3rd Affiliated Hospital of Sun Yat-sen University. NO.600, Tianhe Road, Tianhe District, Guangzhou, Guangdong, 510630, China
| | - Xueyan Chen
- Department of Endocrinology and Metabolism, the 3rd Affiliated Hospital of Sun Yat-sen University. NO.600, Tianhe Road, Tianhe District, Guangzhou, Guangdong, 510630, China
| | - Longyi Zeng
- Department of Endocrinology and Metabolism, the 3rd Affiliated Hospital of Sun Yat-sen University. NO.600, Tianhe Road, Tianhe District, Guangzhou, Guangdong, 510630, China
| | - Jianping Weng
- Department of Endocrinology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China (USTC), Hefei, China
| | - Hua Liang
- Department of Endocrinology and Metabolism, Shunde Hospital of Southern Medical University (The First People's Hospital of Shunde), Foshan, China
| | - Wen Xu
- Department of Endocrinology and Metabolism, the 3rd Affiliated Hospital of Sun Yat-sen University. NO.600, Tianhe Road, Tianhe District, Guangzhou, Guangdong, 510630, China
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14
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Kim JW, Kim JH, Lee YJ. The Role of Adipokines in Tumor Progression and Its Association with Obesity. Biomedicines 2024; 12:97. [PMID: 38255203 PMCID: PMC10813163 DOI: 10.3390/biomedicines12010097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 12/26/2023] [Accepted: 12/27/2023] [Indexed: 01/24/2024] Open
Abstract
Obesity is a well-established risk factor for various malignancies and emerging evidence suggests that adipokines play a pivotal role in linking excess adiposity to tumorigenesis. Adipokines are bioactive molecules secreted by adipose tissue and their altered expression in obesity contributes to a pro-inflammatory, pro-angiogenic, and growth-promoting microenvironment conducive to tumorigenesis. Leptin, a key adipokine, activates survival and proliferative signaling pathways whereas adiponectin exhibits tumor-suppressive effects by inducing apoptosis and cell cycle arrest. Visfatin has also been documented to promote tumor growth, angiogenesis, migration, and invasion. Moreover, emerging studies suggest that adipokines, such as resistin, apelin, and chemerin, which are overexpressed in obesity, may also possess oncogenic functions. Despite advancements in our understanding of the roles of individual adipokines in cancer, the intricate interplay and crosstalk between adipokines, tumor cells, and the tumor microenvironment remain complex and multifaceted. This review highlights the evolving knowledge of how adipokines contribute to obesity-related tumorigenesis, shedding light on the potential of targeting adipokine signaling pathways as a novel therapeutic approach for obesity-associated cancers. Further research on the specific mechanisms and interactions between adipokines and tumor cells is crucial for a comprehensive understanding of obesity-associated cancer pathogenesis.
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Affiliation(s)
| | | | - Yoon Jae Lee
- Department of Plastic and Reconstructive Surgery, Yeouido St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 07345, Republic of Korea; (J.W.K.); (J.H.K.)
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15
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Heinen D, Heissel A, Heinzel S, Fydrich T, Ströhle A, Rapp MA, Vogel H. Effect of acute and long-term exercise on leptin levels in depressed outpatients. BMC Public Health 2023; 23:2509. [PMID: 38098007 PMCID: PMC10722655 DOI: 10.1186/s12889-023-17362-4] [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: 05/25/2023] [Accepted: 11/28/2023] [Indexed: 12/17/2023] Open
Abstract
BACKGROUND Depression is a leading cause of disability worldwide and a significant contributor to the global burden of disease. Altered leptin levels are known to be associated with depressive symptoms, however discrepancies in the results of increased or decreased levels exist. Due to various limitations associated with commonly used antidepressant drugs, alternatives such as exercise therapy are gaining more importance. Therefore, the current study investigates whether depressed patients have higher leptin levels compared to healthy controls and if exercise is efficient to reduce these levels. METHODS Leptin levels of 105 participants with major depressive disorder (MDD; 45.7% female, age mean ± SEM: 39.1 ± 1.0) and 34 healthy controls (HC; 61.8% female, age mean ± SEM: 36.0 ± 2.0) were measured before and after a bicycle ergometer test. Additionally, the MDD group was separated into three groups: two endurance exercise intervention groups (EX) differing in their intensities, and a waiting list control group (WL). Leptin levels were measured pre and post a 12-week exercise intervention or the waiting period. RESULTS Baseline data showed no significant differences in leptin levels between the MDD and HC groups. As expected, correlation analyses displayed significant relations between leptin levels and body weight (HC: r = 0.474, p = 0.005; MDD: r = 0.198, p = 0.043) and even more with body fat content (HC: r = 0.755, p < 0.001; MDD: r = 0.675, p < 0.001). The acute effect of the bicycle ergometer test and the 12-week training intervention showed no significant changes in circulating leptin levels. CONCLUSION Leptin levels were not altered in patients with major depression compared to healthy controls and exercise, both the acute response and after 12 weeks of endurance training, had no effect on the change in leptin levels. TRIAL REGISTRATION The study was registered at the German register for clinical studies (DRKS) and the International Clinical Trials Registry Platform of the World Health Organization https://trialsearch.who.int/Trial2.aspx?TrialID=DRKS00008869 on 28/07/2015.
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Affiliation(s)
- Darlene Heinen
- Social- and Preventive Medicine, Department of Exercise and Health Sciences, University of Potsdam, Potsdam, Germany
- Research Group Molecular and Clinical Life Science of Metabolic Diseases, Faculty of Health Sciences Brandenburg, University of Potsdam, Potsdam, Germany
| | - Andreas Heissel
- Social- and Preventive Medicine, Department of Sports and Health Sciences, Intra-Faculty Unit Cognitive Sciences, Faculty of Human Science, and Faculty of Health Sciences Brandenburg, Research Area Services Research and E-Health, University of Potsdam, Potsdam, Germany
- Sport-Gesundheitspark Berlin E.V./Zentrum Für Sportmedizin, Berlin, Germany
| | - Stephan Heinzel
- Clinical Psychology and Psychotherapy, Department of Education and Psychology, Freie Universität Berlin, Berlin, Germany
- Institute of Psychology, Department of Educational Sciences and Psychology, TU Dortmund University, Dortmund, Deutschland
| | - Thomas Fydrich
- Department of Psychiatry and Psychotherapy, Campus Charité Mitte, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Andreas Ströhle
- Department of Psychology, Humboldt University Berlin, Berlin, Germany
| | - Michael A Rapp
- Social- and Preventive Medicine, Department of Sports and Health Sciences, Intra-Faculty Unit Cognitive Sciences, Faculty of Human Science, and Faculty of Health Sciences Brandenburg, Research Area Services Research and E-Health, University of Potsdam, Potsdam, Germany
| | - Heike Vogel
- Research Group Molecular and Clinical Life Science of Metabolic Diseases, Faculty of Health Sciences Brandenburg, University of Potsdam, Potsdam, Germany.
- Research Group Genetics of Obesity, German Institute of Human Nutrition Potsdam-Rehbruecke, Potsdam, Germany.
- German Center for Diabetes Research (DZD), Munich-Neuherberg, 85764, München, Germany.
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Hua KF, Li LH, Yu HC, Wong WT, Hsu HT. Leptin Induces MMP-1 Expression Through the RhoA/ERK1/2/NF-κB Axis in Human Intervertebral Disc Cartilage Endplate-Derived Stem Cells. J Inflamm Res 2023; 16:5235-5248. [PMID: 38026238 PMCID: PMC10657743 DOI: 10.2147/jir.s431026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 10/31/2023] [Indexed: 12/01/2023] Open
Abstract
Purpose Intervertebral disc (IVD) degeneration, associated with aging, may cause low back pain and disability, with obesity as a significant risk factor. In a prior study, we found a positive correlation between IVD degeneration and levels of matrix metalloproteinase-1 (MMP-1) and leptin. Yet, the interaction between MMP-1 and leptin in IVD degeneration is unclear. Our research seeks to explore leptin's influence on MMP-1 expression and the underlying mechanisms in human intervertebral disc cartilage endplate-derived stem cells, specifically SV40 cells. Methods The mRNA and protein expression in leptin-stimulated SV40 cells were assessed using RT-real-time PCR and Western blotting or ELISA, respectively. We examined leptin-mediated RhoA activation through a GTP-bound RhoA pull-down assay. Furthermore, the phosphorylation levels of mitogen-activated protein kinases and AKT in leptin-stimulated SV40 cells were analyzed using Western blotting. The activation of NF-κB by leptin was investigated by assessing phosphorylation of IKKα/β, IκBα, and NF-κB p65, along with the nuclear translocation of NF-κB p65. To understand the underlying mechanism behind leptin-mediated MMP-1 expression, we employed specific inhibitors. Results Leptin triggered the mRNA and protein expression of MMP-1 in SV40 cells. In-depth mechanistic investigations uncovered that leptin heightened RhoA activity, promoted ERK1/2 phosphorylation, and increased NF-κB activity. However, leptin did not induce phosphorylation of JNK1/2, p38, or AKT. When we inhibited RhoA, ERK1/2, and NF-κB, it resulted in a decrease in MMP-1 expression. Conversely, inhibition of reactive oxygen species and NADPH oxidase did not yield the same outcome. Additionally, inhibiting RhoA or ERK1/2 led to a reduction in leptin-induced NF-κB activation. Moreover, inhibiting RhoA also decreased leptin-mediated ERK1/2 phosphorylation. Conclusion These results indicated that leptin induced MMP-1 expression in SV40 cells through the RhoA/ERK1/2/NF-κB axis. This study provided the pathogenic role of leptin and suggested the potential therapeutic target for IVD degeneration.
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Affiliation(s)
- Kuo-Feng Hua
- Department of Biotechnology and Animal Science, National Ilan University, Yilan, 26047, Taiwan
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, 404333, Taiwan
| | - Lan-Hui Li
- Department of Laboratory Medicine, Linsen, Chinese Medicine and Kunming Branch, Taipei City Hospital, Taipei, 108, Taiwan
| | - Hsin-Chiao Yu
- Division of Neurosurgery, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, 231, Taiwan
| | - Wei-Ting Wong
- Department of Biotechnology and Animal Science, National Ilan University, Yilan, 26047, Taiwan
| | - Hsien-Ta Hsu
- Division of Neurosurgery, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, 231, Taiwan
- School of Medicine, Buddhist Tzu Chi University, Hualien, 970, Taiwan
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17
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Neto A, Fernandes A, Barateiro A. The complex relationship between obesity and neurodegenerative diseases: an updated review. Front Cell Neurosci 2023; 17:1294420. [PMID: 38026693 PMCID: PMC10665538 DOI: 10.3389/fncel.2023.1294420] [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: 09/14/2023] [Accepted: 10/23/2023] [Indexed: 12/01/2023] Open
Abstract
Obesity is a global epidemic, affecting roughly 30% of the world's population and predicted to rise. This disease results from genetic, behavioral, societal, and environmental factors, leading to excessive fat accumulation, due to insufficient energy expenditure. The adipose tissue, once seen as a simple storage depot, is now recognized as a complex organ with various functions, including hormone regulation and modulation of metabolism, inflammation, and homeostasis. Obesity is associated with a low-grade inflammatory state and has been linked to neurodegenerative diseases like multiple sclerosis (MS), Alzheimer's (AD), and Parkinson's (PD). Mechanistically, reduced adipose expandability leads to hypertrophic adipocytes, triggering inflammation, insulin and leptin resistance, blood-brain barrier disruption, altered brain metabolism, neuronal inflammation, brain atrophy, and cognitive decline. Obesity impacts neurodegenerative disorders through shared underlying mechanisms, underscoring its potential as a modifiable risk factor for these diseases. Nevertheless, further research is needed to fully grasp the intricate connections between obesity and neurodegeneration. Collaborative efforts in this field hold promise for innovative strategies to address this complex relationship and develop effective prevention and treatment methods, which also includes specific diets and physical activities, ultimately improving quality of life and health.
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Affiliation(s)
- Alexandre Neto
- Central Nervous System, Blood and Peripheral Inflammation, Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Lisbon, Portugal
| | - Adelaide Fernandes
- Central Nervous System, Blood and Peripheral Inflammation, Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Lisbon, Portugal
- Department of Pharmaceutical Sciences and Medicines, Faculdade de Farmácia, Universidade de Lisboa, Lisbon, Portugal
| | - Andreia Barateiro
- Central Nervous System, Blood and Peripheral Inflammation, Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Lisbon, Portugal
- Department of Pharmaceutical Sciences and Medicines, Faculdade de Farmácia, Universidade de Lisboa, Lisbon, Portugal
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Kokkorakis M, Katsarou A, Katsiki N, Mantzoros CS. Milestones in the journey towards addressing obesity; Past trials and triumphs, recent breakthroughs, and an exciting future in the era of emerging effective medical therapies and integration of effective medical therapies with metabolic surgery. Metabolism 2023; 148:155689. [PMID: 37689110 DOI: 10.1016/j.metabol.2023.155689] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 08/28/2023] [Accepted: 08/28/2023] [Indexed: 09/11/2023]
Abstract
The 21st century is characterized by an increasing incidence and prevalence of obesity and the burden of its associated comorbidities, especially cardiometabolic diseases, which are reaching pandemic proportions. In the late '90s, the "black box" of adipose tissue and energy homeostasis was opened with the discovery of leptin, transforming the adipose tissue from an "inert fat-storage organ" to the largest human endocrine organ and creating the basis on which more intensified research efforts to elucidate the pathogenesis of obesity and develop novel treatments were based upon. Even though leptin was eventually not proven to be the "standalone magic bullet" for the treatment of common/polygenic obesity, it has been successful in the treatment of monogenic obesity syndromes. Additionally, it shifted the paradigm of treating obesity from a condition due to "lack of willpower" to a disease due to distinct underlying biological mechanisms for which specific pharmacotherapies would be needed in addition to lifestyle modification. Subsequently, the melanocortin pathway proved to be an equally valuable pathway for the pharmacotherapy of obesity. Melanocortin receptor agonists have recently been approved for treating certain types of syndromic obesity. Other molecules- such as incretins, implicated in energy and glucose homeostasis- are secreted by the gastrointestinal tract. Glucagon-like peptide 1 (GLP-1) is the most prominent one, with GLP-1 analogs approved for common/polygenic obesity. Unimolecular combinations with other incretins, e.g., GLP-1 with gastric inhibitory polypeptide and/or glucagon, are expected to be approved soon as more effective pharmacotherapies for obesity and its comorbidities. Unimolecular combinations with other compounds and small molecules activating the receptors of these molecules are currently under investigation as promising future pharmacotherapies. Moreover, metabolic and bariatric surgery has also demonstrated impressive results, especially in the case of morbid obesity. Consequently, this broadening therapeutic armamentarium calls for a well-thought-after and well-coordinated multidisciplinary approach, for instance, through cardiometabolic expertise centers, that would ideally address effectively and cost-effectively obesity and its comorbidities, providing tangible benefits to large segments of the population.
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Affiliation(s)
- Michail Kokkorakis
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Angeliki Katsarou
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Niki Katsiki
- Department of Nutritional Sciences and Dietetics, International Hellenic University, 57400 Thessaloniki, Greece
| | - Christos S Mantzoros
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA; Section of Endocrinology, VA Boston Healthcare System, Harvard Medical School, Boston, MA 02115, USA.
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Nikolettos K, Nikolettos N, Vlahos N, Pagonopoulou O, Asimakopoulos B. Role of leptin, adiponectin, and kisspeptin in polycystic ovarian syndrome pathogenesis. Minerva Obstet Gynecol 2023; 75:460-467. [PMID: 36255161 DOI: 10.23736/s2724-606x.22.05139-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
INTRODUCTION Polycystic ovarian syndrome (PCOS) affects 5-20% of females and is the most common cause of anovulatory infertility. Leptin seems to have an important role in reproduction. Many reproductive pathologies such as preeclampsia, PCOS, and endometriosis are associated to plasma adiponectin levels. Kisspeptin levels are increased in PCOS women. EVIDENCE ACQUISITION A review of the literature was completed through the PubMed database aiming to find articles regarding leptin, adiponectin and kisspeptin and if they are related to PCOS pathogenesis. EVIDENCE SYNTHESIS Even today it is not clear what is the role of leptin in women with PCOS, although most of the researchers found increased levels of leptin as well as leptin resistance in PCOS (both obese and lean individuals). Many more longitudinal studies should be done to discover the usefulness of measuring adiponectin in prepubertal women who apparently have a possibility to develop PCOS to find out if they finally develop PCOS. Most of the researchers found that PCOS women have decreased levels of adiponectin unrelated to BMI levels. Nevertheless, not all studies had the same result. Moreover, it is necessary more studies to be made to investigate the connection between kisspeptin and other metabolic factors such as LH and insulin resistance. CONCLUSIONS In general, it remains inconclusive whether leptin, adiponectin, and kisspeptin can be used as clinical and/or biochemical markers of PCOS. Therefore, it is essential to review the current data with regards to the association between PCOS and circulating leptin, adiponectin, and kisspeptin in women with PCOS.
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Affiliation(s)
- Konstantinos Nikolettos
- Obstetric and Gynecologic Clinic, Medical School, Democritus University of Thrace, Alexandroupolis, Greece -
| | - Nikos Nikolettos
- Obstetric and Gynecologic Clinic, Medical School, Democritus University of Thrace, Alexandroupolis, Greece
| | - Nikolaos Vlahos
- Second Department of Obstetrics and Gynecology, National and Kapodistrian University of Athens, School of Medicine, Aretaieion Hospital, Athens, Greece
| | - Olga Pagonopoulou
- Laboratory of Physiology, Faculty of Medicine, Democritus University of Thrace, Alexandroupolis, Greece
| | - Byron Asimakopoulos
- Laboratory of Physiology, Faculty of Medicine, Democritus University of Thrace, Alexandroupolis, Greece
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Cao X, He L, Sun R, Chen S. Gender-specific associations between abdominal adipose mass and bone mineral density in the middle-aged US population. BMC Musculoskelet Disord 2023; 24:715. [PMID: 37684622 PMCID: PMC10485967 DOI: 10.1186/s12891-023-06844-6] [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: 03/24/2023] [Accepted: 08/30/2023] [Indexed: 09/10/2023] Open
Abstract
OBJECTIVES The relationship between abdominal adipose tissue and osteoporosis is poorly understood. The purpose of this study was to examine the associations of abdominal adipose tissue with bone mineral density (BMD) among a nationally representative sample of US middle-aged adults. MATERIAL AND METHODS This study included 1498 participants from the National Health and Nutrition Examination Survey 2013-2014 and 2017-2018. Dual-energy x-ray absorptiometry was used to measure BMD at the lumbar spine and femoral neck, as well as to assess abdominal adipose mass by categorizing total adipose tissue (TAT) into visceral adipose tissue (VAT) and subcutaneous adipose tissue (SAT). Linear regression was used to assess the relationship between abdominal adipose tissue and BMD, and logistic regression and generalized additive model were used to assess the associations of abdominal adipose tissue with the development of low BMD. RESULTS In our study, men accounted for 51.3%, and the mean age and body mass index for men and women were 49.3 and 49.6 years, and 23.9 and 28.3 kg/m2, respectively. In the univariate model, we found that abdominal adipose mass was positively associated with BMD at femoral neck and spine in both genders. In the multivariate model, among men, a negative correlation was observed between TAT and SAT and BMD at the femoral neck. Additionally, higher masses of TAT, SAT, and VAT were found to significantly increase the risk of low BMD at both the femoral neck and lumbar spine. In contrast, there was no significant association between abdominal adipose mass and BMD in middle-aged women, regardless of menopausal status. CONCLUSIONS Our finding suggested that abdominal adipose tissue, regardless of its location (SAT or VAT), may have a negative impact on BMD in middle-aged men independently of body weight, but this relationship was not observed in women. Further research is needed to confirm these findings and investigate potential mechanisms underlying these associations.
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Affiliation(s)
- Xueqin Cao
- Department of Endocrinology, The Dushu Lake Hospital Affiliated to Soochow University, Chongwen Road No. 9, Suzhou, 215000, Jiangsu, China
| | - Leilei He
- Department of Obstetrics and Gynecology, The Dushu Lake Hospital Affiliated to Soochow University, Chongwen Road No. 9, Suzhou, 215000, Jiangsu, China
| | - Rong Sun
- Department of Endocrinology, The Dushu Lake Hospital Affiliated to Soochow University, Chongwen Road No. 9, Suzhou, 215000, Jiangsu, China
| | - Siyu Chen
- Department of Endocrinology, The Dushu Lake Hospital Affiliated to Soochow University, Chongwen Road No. 9, Suzhou, 215000, Jiangsu, China.
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21
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Pestel J, Blangero F, Watson J, Pirola L, Eljaafari A. Adipokines in obesity and metabolic-related-diseases. Biochimie 2023; 212:48-59. [PMID: 37068579 DOI: 10.1016/j.biochi.2023.04.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 04/03/2023] [Accepted: 04/13/2023] [Indexed: 04/19/2023]
Abstract
The discovery of leptin in the 1990s led to a reconsideration of adipose tissue (AT) as not only a fatty acid storage organ, but also a proper endocrine tissue. AT is indeed capable of secreting bioactive molecules called adipokines for white AT or batokines for brown/beige AT, which allow communication with numerous organs, especially brain, heart, liver, pancreas, and/or the vascular system. Adipokines exert pro or anti-inflammatory activities. An equilibrated balance between these two sets ensures homeostasis of numerous tissues and organs. During the development of obesity, AT remodelling leads to an alteration of its endocrine activity, with increased secretion of pro-inflammatory adipokines relative to the anti-inflammatory ones, as shown in the graphical abstract. Pro-inflammatory adipokines take part in the initiation of local and systemic inflammation during obesity and contribute to comorbidities associated to obesity, as detailed in the present review.
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Affiliation(s)
- Julien Pestel
- INSERM U1060-CarMeN /Université Claude Bernard Lyon 1/INRAE/ Université Claude Bernard Lyon 1: Laboratoire CarMeN, 165 chemin du Grand Revoyet, CHLS, 69310 Pierre Bénite, France
| | - Ferdinand Blangero
- INSERM U1060-CarMeN /Université Claude Bernard Lyon 1/INRAE/ Université Claude Bernard Lyon 1: Laboratoire CarMeN, 165 chemin du Grand Revoyet, CHLS, 69310 Pierre Bénite, France
| | - Julia Watson
- INSERM U1060-CarMeN /Université Claude Bernard Lyon 1/INRAE/ Université Claude Bernard Lyon 1: Laboratoire CarMeN, 165 chemin du Grand Revoyet, CHLS, 69310 Pierre Bénite, France
| | - Luciano Pirola
- INSERM U1060-CarMeN /Université Claude Bernard Lyon 1/INRAE/ Université Claude Bernard Lyon 1: Laboratoire CarMeN, 165 chemin du Grand Revoyet, CHLS, 69310 Pierre Bénite, France
| | - Assia Eljaafari
- INSERM U1060-CarMeN /Université Claude Bernard Lyon 1/INRAE/ Université Claude Bernard Lyon 1: Laboratoire CarMeN, 165 chemin du Grand Revoyet, CHLS, 69310 Pierre Bénite, France; Hospices Civils de Lyon: 2 quai des Célestins, 69001 Lyon, France.
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Bocian-Jastrzębska A, Malczewska-Herman A, Kos-Kudła B. Role of Leptin and Adiponectin in Carcinogenesis. Cancers (Basel) 2023; 15:4250. [PMID: 37686525 PMCID: PMC10486522 DOI: 10.3390/cancers15174250] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/18/2023] [Accepted: 08/21/2023] [Indexed: 09/10/2023] Open
Abstract
Hormones produced by adipocytes, leptin and adiponectin, are associated with the process of carcinogenesis. Both of these adipokines have well-proven oncologic potential and can affect many aspects of tumorigenesis, from initiation and primary tumor growth to metastatic progression. Involvement in the formation of cancer includes interactions with the tumor microenvironment and its components, such as tumor-associated macrophages, cancer-associated fibroblasts, extracellular matrix and matrix metalloproteinases. Furthermore, these adipokines participate in the epithelial-mesenchymal transition and connect to angiogenesis, which is critical for cancer invasiveness and cancer cell migration. In addition, an enormous amount of evidence has demonstrated that altered concentrations of these adipocyte-derived hormones and the expression of their receptors in tumors are associated with poor prognosis in various types of cancer. Therefore, leptin and adiponectin dysfunction play a prominent role in cancer and impact tumor invasion and metastasis in different ways. This review clearly and comprehensively summarizes the recent findings and presents the role of leptin and adiponectin in cancer initiation, promotion and progression, focusing on associations with the tumor microenvironment and its components as well as roles in the epithelial-mesenchymal transition and angiogenesis.
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Affiliation(s)
- Agnes Bocian-Jastrzębska
- Department of Endocrinology and Neuroendocrine Tumors, Department of Pathophysiology and Endocrinogy, Medical University of Silesia, 40-514 Katowice, Poland; (A.M.-H.); (B.K.-K.)
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23
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Ajabnoor GMA. The Molecular and Genetic Interactions between Obesity and Breast Cancer Risk. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:1338. [PMID: 37512149 PMCID: PMC10384495 DOI: 10.3390/medicina59071338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 07/14/2023] [Accepted: 07/19/2023] [Indexed: 07/30/2023]
Abstract
Breast cancer (BC) is considered the leading cause of death among females worldwide. Various risk factors contribute to BC development, such as age, genetics, reproductive factors, obesity, alcohol intake, and lifestyle. Obesity is considered to be a pandemic health problem globally, affecting millions of people worldwide. Obesity has been associated with a high risk of BC development. Determining the impact of obesity on BC development risk in women by demonstrating the molecular and genetic association in pre- and post-menopause females and risk to BC initiation is crucial in order to improve the diagnosis and prognosis of BC disease. In epidemiological studies, BC in premenopausal women was shown to be protective in a certain pattern. These altered effects between the two phases could be due to various physiological changes, such as estrogen/progesterone fluctuating levels. In addition, the relationship between BC risk and obesity is indicated by different molecular alterations as metabolic pathways and genetic mutation or epigenetic DNA changes supporting a strong connection between obesity and BC risk. However, these molecular and genetic alteration remain incompletely understood. The aim of this review is to highlight and elucidate the different molecular mechanisms and genetic changes occurring in obese women and their association with BC risk and development.
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Affiliation(s)
- Ghada M A Ajabnoor
- Department of Clinical Biochemistry, Faculty of Medicine, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Food, Nutrition and Lifestyle Unit, King Fahd Medical Research Centre, King Abdulaziz University, Jeddah 21551, Saudi Arabia
- Saudi Diabetes Research Group, Faculty of Medicine, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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24
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Lempesis IG, Hoebers N, Essers Y, Jocken JWE, Dineen R, Blaak EE, Manolopoulos KN, Goossens GH. Distinct inflammatory signatures of upper and lower body adipose tissue and adipocytes in women with normal weight or obesity. Front Endocrinol (Lausanne) 2023; 14:1205799. [PMID: 37455922 PMCID: PMC10338223 DOI: 10.3389/fendo.2023.1205799] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Accepted: 06/02/2023] [Indexed: 07/18/2023] Open
Abstract
Introduction Upper and lower body fat accumulation poses an opposing obesity-related cardiometabolic disease risk. Depot-differences in subcutaneous adipose tissue (SAT) function may underlie these associations. We aimed to investigate the inflammatory signatures of abdominal (ABD) and femoral (FEM) SAT in postmenopausal women with normal weight or obesity. Methods We included 23 postmenopausal women with normal weight (n = 13) or obesity (n = 10). In vivo secretion of adipokines from ABD and FEM SAT was measured using the arterio-venous balance technique. Adipokine gene expression and adipocyte morphology were examined in ABD and FEM SAT. Furthermore, adipokine expression and secretion were investigated in vitro using differentiated human primary ABD and FEM subcutaneous adipocytes derived from the study participants. Results Plasma leptin and plasminogen activator inhibitor (PAI)-1 concentrations were higher, and ABD and FEM adipocytes were larger in women with obesity than normal weight. No differences in adipocyte size and blood flow were apparent between ABD and FEM SAT. We found significant release of leptin and monocyte chemoattractant protein (MCP)-1 from ABD and FEM SAT, with higher fractional release of MCP-1 from ABD than FEM SAT. Gene expression of leptin, PAI-1, and tumor necrosis factor-α was lower in ABD than FEM SAT and higher in women with obesity than normal weight. In ABD adipocytes, interleukin-6, PAI-1, and leptin gene expression were higher, while adiponectin and dipeptidyl-peptidase-4 gene expression were lower than in FEM adipocytes. Finally, ABD adipocytes secreted less MCP-1 compared to FEM adipocytes. Discussion These findings demonstrate that upper and lower body SAT and adipocytes are characterized by distinct inflammatory signatures in postmenopausal women, which seem independent of adipocyte size.
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Affiliation(s)
- Ioannis G. Lempesis
- Institute of Metabolism and Systems Research (IMSR), College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
- Department of Human Biology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre, Maastricht, The Netherlands, Maastricht, Netherlands
- Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, United Kingdom
| | - Nicole Hoebers
- Department of Human Biology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre, Maastricht, The Netherlands, Maastricht, Netherlands
| | - Yvonne Essers
- Department of Human Biology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre, Maastricht, The Netherlands, Maastricht, Netherlands
| | - Johan W. E. Jocken
- Department of Human Biology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre, Maastricht, The Netherlands, Maastricht, Netherlands
| | - Rosemary Dineen
- Institute of Metabolism and Systems Research (IMSR), College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
- Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, United Kingdom
| | - Ellen E. Blaak
- Department of Human Biology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre, Maastricht, The Netherlands, Maastricht, Netherlands
| | - Konstantinos N. Manolopoulos
- Institute of Metabolism and Systems Research (IMSR), College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
- Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, United Kingdom
| | - Gijs H. Goossens
- Department of Human Biology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre, Maastricht, The Netherlands, Maastricht, Netherlands
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25
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Lempesis IG, Georgakopoulou VE. Physiopathological mechanisms related to inflammation in obesity and type 2 diabetes mellitus. World J Exp Med 2023; 13:7-16. [PMID: 37396883 PMCID: PMC10308320 DOI: 10.5493/wjem.v13.i3.7] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 02/15/2023] [Accepted: 04/10/2023] [Indexed: 06/16/2023] Open
Abstract
Overweight, obesity, and type 2 diabetes mellitus pose global health problems that are ever-increasing. A chronic low-grade inflammatory status and the presence of various pro-inflammatory markers either in circulation or within dysfunctional metabolic tissues are well established. The presence of these factors can, to some extent, predict disease development and progression. A central role is played by the presence of dysfunctional adipose tissue, liver dysfunction, and skeletal muscle dysfunction, which collectively contribute to the increased circulatory levels of proinflammatory factors. Weight loss and classical metabolic interventions achieve a decrease in many of these factors’ circulating levels, implying that a better understanding of the processes or even the modulation of inflammation may alleviate these diseases. This review suggests that inflammation plays a significant role in the development and progression of these conditions and that measuring inflammatory markers may be useful for assessing disease risk and development of future treatment methods.
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Affiliation(s)
- Ioannis G Lempesis
- Department of Infectious Diseases-COVID-19 Unit, Laiko General Hospital, Athens 11527, Greece
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26
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Liu FS, Wang S, Guo XS, Ye ZX, Zhang HY, Li Z. State of art on the mechanisms of laparoscopic sleeve gastrectomy in treating type 2 diabetes mellitus. World J Diabetes 2023; 14:632-655. [PMID: 37383590 PMCID: PMC10294061 DOI: 10.4239/wjd.v14.i6.632] [Citation(s) in RCA: 2] [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: 12/17/2022] [Revised: 04/01/2023] [Accepted: 04/24/2023] [Indexed: 06/14/2023] Open
Abstract
Obesity and type-2 diabetes mellitus (T2DM) are metabolic disorders. Obesity increases the risk of T2DM, and as obesity is becoming increasingly common, more individuals suffer from T2DM, which poses a considerable burden on health systems. Traditionally, pharmaceutical therapy together with lifestyle changes is used to treat obesity and T2DM to decrease the incidence of comorbidities and all-cause mortality and to increase life expectancy. Bariatric surgery is increasingly replacing other forms of treatment of morbid obesity, especially in patients with refractory obesity, owing to its many benefits including good long-term outcomes and almost no weight regain. The bariatric surgery options have markedly changed recently, and laparoscopic sleeve gastrectomy (LSG) is gradually gaining popularity. LSG has become an effective and safe treatment for type-2 diabetes and morbid obesity, with a high cost-benefit ratio. Here, we review the me-chanism associated with LSG treatment of T2DM, and we discuss clinical studies and animal experiments with regard to gastrointestinal hormones, gut microbiota, bile acids, and adipokines to clarify current treatment modalities for patients with obesity and T2DM.
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Affiliation(s)
- Fa-Shun Liu
- Department of General Surgery, Yangpu Hospital, Tongji University School of Medicine, Shanghai 200090, China
| | - Song Wang
- Department of General Surgery, Yangpu Hospital, Tongji University School of Medicine, Shanghai 200090, China
| | - Xian-Shan Guo
- Department of Endocrinology, Xinxiang Central Hospital, Xinxiang 453000, Henan Province, China
| | - Zhen-Xiong Ye
- Department of General Surgery, Yangpu Hospital, Tongji University School of Medicine, Shanghai 200090, China
| | - Hong-Ya Zhang
- Central Laboratory, Yangpu District Control and Prevention Center, Shanghai 200090, China
| | - Zhen Li
- Department of General Surgery, Yangpu Hospital, Tongji University School of Medicine, Shanghai 200090, China
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Srivastava N, Singh K, Singh N, Mahdi AA. Association between serum interleukin-6, leptin and insulin in gestational diabetes mellitus - a cross- sectional study. J Diabetes Metab Disord 2023; 22:639-648. [PMID: 37255771 PMCID: PMC10225451 DOI: 10.1007/s40200-023-01188-3] [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: 08/19/2022] [Revised: 12/26/2022] [Accepted: 01/14/2023] [Indexed: 06/01/2023]
Abstract
Purpose Gestational diabetes mellitus (GDM) is a state of leptin resistance which develops a vicious cycle of hyperinsulinemia and hyperleptinemia leading to aggravation of an inflammatory situation. This study was done to find out the association between IL-6, leptin and insulin in gestational diabetes among North Indian women. Method This cross-sectional study included 100 GDM, 100 non-GDM and 50 non-pregnant women. DIPSI (Diabetes in Pregnancy Study Group India) criteria was used for screening GDM among pregnant women. GDM and non-GDM pregnant women were further categorized into three groups according to the trimester of pregnancy. Serum IL-6, leptin and insulin were measured in all the enrolled women. Results Serum IL-6 levels were significantly higher among GDM women as compared to non-GDM and non-pregnant women. Although the mean serum leptin and insulin levels were higher in GDM, but the difference was not statistically significant. When GDM and non-GDM women were categorized into three trimester, serum leptin levels were found to be significantly higher in 3rd trimester (p < 0.002) and IL-6 in 1st trimester (p < 0.017) among GDM women. No correlation was found between serum IL-6, leptin and insulin in GDM. Conclusion Absence of any significant association between leptin and IL-6 signifies that leptin may not be associated with inflammation in gestational diabetes. However, IL-6 may serve as an early marker for screening glucose intolerance during pregnancy. Supplementary Information The online version contains supplementary material available at 10.1007/s40200-023-01188-3.
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Affiliation(s)
- Neha Srivastava
- Department of Biochemistry, King George’s Medical University, 226003 Lucknow, Uttar Pradesh India
| | - Kalpana Singh
- Department of Biochemistry, King George’s Medical University, 226003 Lucknow, Uttar Pradesh India
| | - Nisha Singh
- Department of Obstetrics & Gynaecology, King George’s Medical University, 226003 Lucknow, Uttar Pradesh India
| | - Abbas Ali Mahdi
- Department of Biochemistry, King George’s Medical University, 226003 Lucknow, Uttar Pradesh India
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Yi X, Yang Y, Li T, Li M, Yao T, Hu G, Wan G, Chang B. Signaling metabolite β-aminoisobutyric acid as a metabolic regulator, biomarker, and potential exercise pill. Front Endocrinol (Lausanne) 2023; 14:1192458. [PMID: 37313446 PMCID: PMC10258315 DOI: 10.3389/fendo.2023.1192458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 05/15/2023] [Indexed: 06/15/2023] Open
Abstract
Signaling metabolites can effectively regulate the biological functions of many tissues and organs. β-Aminoisobutyric acid (BAIBA), a product of valine and thymine catabolism in skeletal muscle, has been reported to participate in the regulation of lipid, glucose, and bone metabolism, as well as in inflammation and oxidative stress. BAIBA is produced during exercise and is involved in the exercise response. No side effect has been observed in human and rat studies, suggesting that BAIBA can be developed as a pill that confers the benefits of exercise to subjects who, for some reason, are unable to do so. Further, BAIBA has been confirmed to participate in the diagnosis and prevention of diseases as an important biological marker of disease. The current review aimed to discuss the roles of BAIBA in multiple physiological processes and the possible pathways of its action, and assess the progress toward the development of BAIBA as an exercise mimic and biomarker with relevance to multiple disease states, in order to provide new ideas and strategies for basic research and disease prevention in related fields.
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29
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Alfaqih MA, Aljanabi M, Ababneh E, Khanfar M, Alqudah M, Sater M. Leptin and the rs2167270 Polymorphism Are Associated with Glycemic Control in Type Two Diabetes Mellitus Patients on Metformin Therapy. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:997. [PMID: 37241229 PMCID: PMC10221967 DOI: 10.3390/medicina59050997] [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: 03/13/2023] [Revised: 05/04/2023] [Accepted: 05/06/2023] [Indexed: 05/28/2023]
Abstract
Background and Objectives: Type two diabetes mellitus (T2DM) is a chronic disease with debilitating complications and high mortality. Evidence indicates that good glycemic control delays disease progression and is hence a target of disease management protocols. Nonetheless, some patients cannot maintain glycemic control. This study aimed to investigate the association between serum leptin levels and several SNPs of the LEP gene with the lack of glycemic control in T2DM patients on metformin therapy. Materials and Methods: In a hospital-based case-control study, 170 patients with poor glycemic control and 170 patients with good glycemic control were recruited. Serum leptin was measured. Patients were genotyped for three SNPs in the LEP gene (rs7799039, rs2167270, and rs791620). Results: Serum leptin was significantly lower in T2DM patients with poor glycemic control (p < 0.05). In multivariate analysis, serum leptin levels significantly lowered the risk of having poor glycemic control (OR = 0.985; CI: 0.976-0.994; p = 0.002); moreover, the GA genotype of rs2167270 was protective against poor glycemic control compared to the GG genotype (OR = 0.417; CI: 0.245-0.712; p = 0.001). Conclusions: Higher serum leptin and the GA genotype of the rs2167270 SNP of the LEP gene were associated with good glycemic control in T2DM patients on metformin therapy. Further studies with a larger sample size from multiple institutions are required to validate the findings.
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Affiliation(s)
- Mahmoud A. Alfaqih
- Department of Biochemistry, College of Medicine and Medical Sciences, Arabian Gulf University, Manama 15503, Bahrain;
- Department of Physiology and Biochemistry, Faculty of Medicine, Jordan University of Science and Technology, Irbid 22110, Jordan; (M.A.); (E.A.); (M.K.)
| | - Mukhallad Aljanabi
- Department of Physiology and Biochemistry, Faculty of Medicine, Jordan University of Science and Technology, Irbid 22110, Jordan; (M.A.); (E.A.); (M.K.)
| | - Ebaa Ababneh
- Department of Physiology and Biochemistry, Faculty of Medicine, Jordan University of Science and Technology, Irbid 22110, Jordan; (M.A.); (E.A.); (M.K.)
| | - Mariam Khanfar
- Department of Physiology and Biochemistry, Faculty of Medicine, Jordan University of Science and Technology, Irbid 22110, Jordan; (M.A.); (E.A.); (M.K.)
| | - Mohammad Alqudah
- Department of Physiology, Faculty of Medicine, College of Medicine and Medical Sciences, Manama 15503, Bahrain;
| | - Mai Sater
- Department of Biochemistry, College of Medicine and Medical Sciences, Arabian Gulf University, Manama 15503, Bahrain;
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Chakhtoura M, Mantzoros CS. Advances in physiology, design and development of novel medications changing the landscape of obesity pharmacotherapy. Metabolism 2023; 142:155531. [PMID: 36870600 DOI: 10.1016/j.metabol.2023.155531] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Accepted: 02/27/2023] [Indexed: 03/06/2023]
Affiliation(s)
- Marlene Chakhtoura
- Department of Internal Medicine, Division of Endocrinology, American University of Beirut Medical Center, Beirut, Lebanon
| | - Christos S Mantzoros
- Beth Israel Deaconess Medical Center and Boston VA Healthcare system, Harvard Medical School, Boston, MA.
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Wahyuni ES, Maryatun M, Veri N, Susilawati E, Firrahmawati L, Wahyuni ES, Wulandari R. Green Tea Extract has a Protective Effect on Leptin and Lipid Profile Levels Due to the Induction of Depot Medroxyprogesterone Acetate. Med Arch 2023; 77:173-177. [PMID: 37700918 PMCID: PMC10495140 DOI: 10.5455/medarh.2023.77.173-177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 05/14/2023] [Indexed: 09/14/2023] Open
Abstract
Background Depot medroxyprogesterone acetate (DMPA) is a progesterone derivative synthesized in the laboratory. This substance has the ability to suppress ovulation, induce endometrial shrinkage, and even affect the hypothalamic-pituitary-gonadal axis in the reproductive system. Objective The purpose of this study was to investigate the effects of administration of green tea extract on reducing visceral fat, increasing leptin levels, and improving the lipid profile in female rats injected with depot medroxyprogesterone acetate (DMPA). Results This study was to look into the effects of green tea extract administration on visceral fat reduction, leptin levels, and lipid profile improvement as a result of DMPA administration. Analysis of HDL and LDL levels was performed by spectrophotometry. DMPA induced a significant increase in leptin levels compared with the control group (p 0.05). All doses of green tea extract can reduce this increase, with the highest doses reaching levels comparable to the control group (p > 0.05). DMPA significantly increased LDL levels compared to the control group (p < 0.05), and the highest green tea extract dose restored levels similar to the control group. DMPA triggered a decrease in HDL level that was significantly different from the control group (p < 0.05). The first dose of green tea extract can achieve HDL levels comparable to the control group (p > 0.05). Conclusion It was concluded that green tea extract can protect the metabolic status through decreased leptin and an improvement of the lipid profile induced by DMPA.
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Affiliation(s)
- Endang Sri Wahyuni
- Midwifery Study Program, Faculty of Health Science, Universitas 'Aisyiyah Surakarta, Surakarta, Central of Java, Indonesia
| | - Maryatun Maryatun
- Nursing Study Program, Faculty of Health Science, Universitas 'Aisyiyah Surakarta, Surakarta, Central of Java, Indonesia
| | - Nora Veri
- Midwifery Study Program, Ministry of Health Polytechnic of Langsa, Aceh, Special Region of Aceh, Indonesia
| | - Elly Susilawati
- Department of Midwifery, Polytechnic of Health-Ministry of Health, Riau, Indonesia
| | - Lely Firrahmawati
- Midwifery Study Program, Faculty of Health Science, Universitas 'Aisyiyah Surakarta, Surakarta, Central of Java, Indonesia
| | - Endah Sri Wahyuni
- Nursing Study Program, Faculty of Health Science, Universitas 'Aisyiyah Surakarta, Surakarta, Central of Java, Indonesia
| | - Riyani Wulandari
- Nursing Study Program, Faculty of Health Science, Universitas 'Aisyiyah Surakarta, Surakarta, Central of Java, Indonesia
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Harris RBS. Sucrose solution, but not liquid sucrose diet, leads to leptin resistance irrespective of the time of day that sucrose is available. Physiol Behav 2023; 258:114002. [PMID: 36273496 DOI: 10.1016/j.physbeh.2022.114002] [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: 09/02/2022] [Revised: 10/11/2022] [Accepted: 10/18/2022] [Indexed: 11/29/2022]
Abstract
Rats offered free access to sucrose solution in addition to a sucrose-free composite diet develop leptin resistance whereas those consuming a similar amount of sucrose from a dry diet remain leptin responsive. Here we tested whether rats consuming a complete high sucrose diet in liquid form also became leptin resistant. Female Sprague Dawley rats were offered a sucrose free diet (NS), a dry high sucrose diet (HS), NS diet plus 30% sucrose solution (LiqS), NS diet in liquid form (NSLiq) or HS diet in Liquid form (HSLiq). After 30 days LiqS rats were leptin resistant, but all other groups were leptin responsive even though HSLiq rats consumed as much sucrose as LiqS rats and NSLiq rats had the greatest amount of body fat. Therefore, development of leptin resistance is dependent upon the consumption of sucrose independent of any other nutrients. Because LiqS rats consume sucrose throughout the day and night we tested whether limiting sucrose solution access to either the light or dark period prevented development of leptin resistance. Leptin resistant LiqS rats were either given free access to sucrose, had access to sucrose only at night or had access only during the day. The intake of rats with limited access was supplemented to the level of those with free access by tube-feeding. The results of this study show that leptin resistance of LiqS rats is independent of when the sucrose is consumed and is unrelated to total energy intake, body fat mass or serum leptin concentration.
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Affiliation(s)
- Ruth B S Harris
- Department of Physiology, Medical College of Georgia at Augusta University, Natural Science Annex, Room 420, 29 Peachtree Center Ave NE, Atlanta, GA 30303, United States.
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Sahu B, Bal NC. Adipokines from white adipose tissue in regulation of whole body energy homeostasis. Biochimie 2023; 204:92-107. [PMID: 36084909 DOI: 10.1016/j.biochi.2022.09.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 08/08/2022] [Accepted: 09/01/2022] [Indexed: 02/06/2023]
Abstract
Diseases originating from altered energy homeostasis including obesity, and type 2 diabetes are rapidly increasing worldwide. Research in the last few decades on animal models and humans demonstrates that the white adipose tissue (WAT) is critical for energy balance and more than just an energy storage site. WAT orchestrates the whole-body metabolism through inter-organ crosstalk primarily mediated by cytokines named "Adipokines". The adipokines influence metabolism and fuel selection of the skeletal muscle and liver thereby fine-tuning the load on WAT itself in physiological conditions like starvation, exercise and cold. In addition, adipokine secretion is influenced by various pathological conditions like obesity, inflammation and diabetes. In this review, we have surveyed the current state of knowledge on important adipokines and their significance in regulating energy balance and metabolic diseases. Furthermore, we have summarized the interplay of pro-inflammatory and anti-inflammatory adipokines in the modulation of pathological conditions.
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Affiliation(s)
- Bijayashree Sahu
- School of Biotechnology, KIIT University, Bhubaneswar, Odisha, 751024, India.
| | - Naresh C Bal
- School of Biotechnology, KIIT University, Bhubaneswar, Odisha, 751024, India.
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Mazzilli R, Medenica S, Di Tommaso AM, Fabozzi G, Zamponi V, Cimadomo D, Rienzi L, Ubaldi FM, Watanabe M, Faggiano A, La Vignera S, Defeudis G. The role of thyroid function in female and male infertility: a narrative review. J Endocrinol Invest 2023; 46:15-26. [PMID: 35945393 PMCID: PMC9829629 DOI: 10.1007/s40618-022-01883-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 07/25/2022] [Indexed: 01/13/2023]
Abstract
PURPOSE We herein aimed to review the new insights into the impact of impaired thyroid function on male and female fertility, spacing from spontaneous pregnancy to ART, with the objective of providing an updated narrative revision of the literature. METHODS This narrative review was performed for all available prospective, retrospective and review articles, published up to 2021 in PubMed. Data were extracted from the text and from the tables of the manuscript. RESULTS Thyroid dysfunction is frequently associated with female infertility, whereas its link with male infertility is debated. Female wise, impaired function is detrimental to obstetric and fetal outcomes both in spontaneous pregnancies and in those achieved thanks to assisted reproduction technologies (ART). Furthermore, the reference range of TSH in natural pregnancy and ART procedures has recently become a matter of debate following recent reports in this field. On the other hand, the impact of thyroid function on the male reproductive system is less clear, although a possible role is suggested via modulation of Sertoli and Leydig cells function and spermatogenesis. CONCLUSION Thyroid function should be carefully monitored in both male and female, in couples seeking spontaneous pregnancy as well as ART, as treatment is generally immediate and likely to improve chances of success.
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Affiliation(s)
- R Mazzilli
- Endocrinology Unit, Department of Clinical and Molecular Medicine, Sapienza University of Rome, Sant' Andrea Hospital, Rome, Italy
| | - S Medenica
- Department of Endocrinology, Internal Medicine Clinic, Clinical Center of Montenegro, School of Medicine, University of Montenegro, Podgorica, Montenegro
| | - A M Di Tommaso
- Unit of Endocrinology and Diabetes, Department of Medicine, University Campus Bio-Medico di Roma, Rome, Italy
| | - G Fabozzi
- Clinica Valle Giulia, GeneraLife IVF, Rome, Italy
| | - V Zamponi
- Endocrinology Unit, Department of Clinical and Molecular Medicine, Sapienza University of Rome, Sant' Andrea Hospital, Rome, Italy
| | - D Cimadomo
- Clinica Valle Giulia, GeneraLife IVF, Rome, Italy
| | - L Rienzi
- Clinica Valle Giulia, GeneraLife IVF, Rome, Italy
| | - F M Ubaldi
- Clinica Valle Giulia, GeneraLife IVF, Rome, Italy
| | - M Watanabe
- Department of Experimental Medicine, Sapienza University of Rome, Viale Regina Elena, 328, 00161, Rome, Italy.
| | - A Faggiano
- Endocrinology Unit, Department of Clinical and Molecular Medicine, Sapienza University of Rome, Sant' Andrea Hospital, Rome, Italy
| | - S La Vignera
- Department of Clinical and Experimental Medicine, Policlinico "G. Rodolico, " University of Catania, Catania, Italy
| | - G Defeudis
- Unit of Endocrinology and Diabetes, Department of Medicine, University Campus Bio-Medico di Roma, Rome, Italy
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Associations between Cord Blood Leptin Levels and Childhood Adiposity Differ by Sex and Age at Adiposity Assessment. Life (Basel) 2022; 12:life12122060. [PMID: 36556424 PMCID: PMC9780853 DOI: 10.3390/life12122060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/23/2022] [Accepted: 12/05/2022] [Indexed: 12/13/2022] Open
Abstract
Lower cord blood leptin levels have been associated with lower and higher adiposity in childhood and associations seem to differ according to the child’s age, methods of adiposity assessment and sex. Our aim was to investigate sex-specific associations of cord blood leptinemia with childhood adiposity at birth, 3 and 5 years of age. We measured cord blood leptin using Luminex immunoassays in 520 offspring from the Gen3G cohort. We tested associations between cord blood leptin and body mass index (BMI) z-score, skinfolds thicknesses (SFT), and body composition using dual-energy X-ray absorptiometry, adjusted for confounders. At birth, girls had almost twice as much leptin in cord blood as boys (15.5 [8.9; 25.6] vs. 8.6 [4.9; 15.0] ng/mL; p < 0.0001) as well as significantly greater adiposity. Lower levels of cord blood leptin were associated with higher sum of SFT (β = −0.05 ± 0.02; p = 0.03) and higher BMI z-score (β= −0.22 ± 0.08; p = 0.01) in 3-year-old boys only. We did not observe these associations at age 5, or in girls. Our results suggest a sexual dimorphism in the programming of leptin sensitivity and childhood adiposity, but further observational and functional studies are needed to better understand the role of leptin in early life.
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Xu Y, Xu H, Wang X, Wen H, Guan H, Gao F, Xu H, Jing W, Li J, Mei Y, Li W, Chen Q, Liu F, Cui H. Network-Based Elaboration of the Efficacy of the Dachangshu (BL25) and Tianshu (ST25) Points in the Treatment of Functional Constipation in Children through Inflammation, Adipocytokine, or Leptin Pathways. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2022; 2022:5315927. [PMID: 36523422 PMCID: PMC9747304 DOI: 10.1155/2022/5315927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 08/04/2022] [Accepted: 09/08/2022] [Indexed: 10/10/2023]
Abstract
Constipation commonly occurs during childhood, and more than 95% of cases are classified as functional constipation. If not effectively treated, 20% of patients with childhood constipation can continue to exhibit symptoms into adulthood, which seriously affects their mental health and quality of life. The main feature of acupuncture or acupoint stimulation, a special branch of traditional Chinese medicine, is the selection of different acupoints for different diseases, and many worthy guidelines have been established for matching acupoints. The back-shu and front-mu point combination adheres to an important acupoint compatibility law that has been used since its proposal 2,500 years ago but has not yet been verified by the modern evidence-based experiments. This study focused on the back-shu and front-mu point combination using the Dachangshu (BL25) and Tianshu (ST25) points as examples to explore possible research methods for network acupoint-based stimulation based on existing evidence and to elucidate the mechanisms induced by BL25 and ST25 in the treatment of functional constipation in children (FCC). The study found that BL25 and ST25 have 20 common targets, namely, AQP8, DRD2, VIP, TAC1, IL6R, TNF, FOS, KIT, CHAT, HTR3A, GAS8, SOD3, TRPV1, MPO, CALCA, IL1B, P2RX7, NPY2R, IL10RA, and TPH1, and these targets may provide a strategy for the combined usage of BL25 and ST25. In addition, BL25 and ST25 can affect FCC treatment through inflammation-relatedTh17-cell differentiation, the NF-kappa B signaling pathway, and the Toll-like receptor signaling pathway. Adipocytokines or leptin may also comprise the mechanism through which BL25 and ST25 regulate FCC. In addition, BL25 and ST25 regulate FCC through 13 core targets, namely, NFKBIA, RELA, TNF, IKBKB, IRAK1, TLR4, MYD88, TNFRSF1A, IL1R1, TLR2, IL1B, TRAF6, and TNFRSF1B. In short, this study provides new ideas and methods for studying the mechanism of acupuncture points.
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Affiliation(s)
- Yan Xu
- School of Pediatrics, Henan University of Chinese Medicine, Zhengzhou, Henan 450000, China
- The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, Henan 450000, China
| | - Hanying Xu
- Changchun University of Chinese Medicine, Changchun, Jilin 130117, China
| | - Xinna Wang
- Changchun University of Chinese Medicine, Changchun, Jilin 130117, China
| | - Hongjuan Wen
- Changchun University of Chinese Medicine, Changchun, Jilin 130117, China
| | - Huifang Guan
- Changchun University of Chinese Medicine, Changchun, Jilin 130117, China
| | - Fa Gao
- Changchun University of Chinese Medicine, Changchun, Jilin 130117, China
| | - Hang Xu
- Changchun University of Chinese Medicine, Changchun, Jilin 130117, China
| | - Wei Jing
- Changchun University of Chinese Medicine, Changchun, Jilin 130117, China
| | - Jing Li
- Changchun University of Chinese Medicine, Changchun, Jilin 130117, China
| | - Yan Mei
- Chongqing Hospital Of Traditional Chinese Medicine, Chongqing 400021, China
| | - Weibin Li
- Chongqing Hospital Of Traditional Chinese Medicine, Chongqing 400021, China
| | - Qixiong Chen
- Chongqing Hospital Of Traditional Chinese Medicine, Chongqing 400021, China
| | - Fang Liu
- Chongqing Hospital Of Traditional Chinese Medicine, Chongqing 400021, China
| | - Hongtao Cui
- Chongqing Hospital Of Traditional Chinese Medicine, Chongqing 400021, China
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Wang Y, An Z, Lin D, Jin W. Targeting cancer cachexia: Molecular mechanisms and clinical study. MedComm (Beijing) 2022; 3:e164. [PMID: 36105371 PMCID: PMC9464063 DOI: 10.1002/mco2.164] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 07/01/2022] [Accepted: 07/07/2022] [Indexed: 11/12/2022] Open
Abstract
Cancer cachexia is a complex systemic catabolism syndrome characterized by muscle wasting. It affects multiple distant organs and their crosstalk with cancer constitute cancer cachexia environment. During the occurrence and progression of cancer cachexia, interactions of aberrant organs with cancer cells or other organs in a cancer cachexia environment initiate a cascade of stress reactions and destroy multiple organs including the liver, heart, pancreas, intestine, brain, bone, and spleen in metabolism, neural, and immune homeostasis. The role of involved organs turned from inhibiting tumor growth into promoting cancer cachexia in cancer progression. In this review, we depicted the complicated relationship of cancer cachexia with the metabolism, neural, and immune homeostasis imbalance in multiple organs in a cancer cachexia environment and summarized the treatment progress in recent years. And we discussed the molecular mechanism and clinical study of cancer cachexia from the perspective of multiple organs metabolic, neurological, and immunological abnormalities. Updated understanding of cancer cachexia might facilitate the exploration of biomarkers and novel therapeutic targets of cancer cachexia.
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Affiliation(s)
- Yong‐Fei Wang
- The First Clinical Medical College of Lanzhou University Lanzhou China
- Institute of Cancer Neuroscience Medical Frontier Innovation Research Center The First Hospital of Lanzhou University Lanzhou China
| | - Zi‐Yi An
- The First Clinical Medical College of Lanzhou University Lanzhou China
- Institute of Cancer Neuroscience Medical Frontier Innovation Research Center The First Hospital of Lanzhou University Lanzhou China
| | - Dong‐Hai Lin
- Key Laboratory for Chemical Biology of Fujian Province MOE Key Laboratory of Spectrochemical Analysis and Instrumentation College of Chemistry and Chemical Engineering Xiamen University Xiamen China
| | - Wei‐Lin Jin
- The First Clinical Medical College of Lanzhou University Lanzhou China
- Institute of Cancer Neuroscience Medical Frontier Innovation Research Center The First Hospital of Lanzhou University Lanzhou China
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Abdulslam Abdullah A, Ahmed M, Oladokun A, Ibrahim NA, Adam SN. Serum leptin level in Sudanese women with unexplained infertility and its relationship with some reproductive hormones. World J Biol Chem 2022; 13:83-94. [PMID: 36482982 PMCID: PMC9724080 DOI: 10.4331/wjbc.v13.i5.83] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 09/30/2022] [Accepted: 11/23/2022] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND The excessive concentration of leptin has negative effects on all aspects of female reproduction. Despite this established relationship, the exact role of leptin in women’s fertility is not clear enough and needs more clarification.
AIM To evaluate the serum leptin levels in Sudanese women and to ascertain the relationship between serum leptin levels and unexplained infertility (UI).
METHODS A matched (age and body mass index) case-control study was conducted from March 2021 to February 2022. The study samples were 210 women with UI and 190 fertile women of reproductive age who were attending the maternity hospitals and fertility clinics in Khartoum state Sudan. The serum concentration of leptin and other serum biomarkers were determined using enzyme-linked immunosorbent assays.
RESULTS The results showed that there was a highly statistically significant difference between the two groups (P < 0.001) for all examined eight biomarkers. Whereby, leptin, luteinizing hormone (LH)/follicular stimulating hormone (FSH) ratio, prolactin hormone (PRL) and testosterone (T) were significantly higher in the UI group compared with the control group. In contrast, FSH and estradiol (E2)/T ratio were significantly lower in the UI group than in the control group and the effect size test for the difference between the two groups was very large (effect size > 0.80), for leptin level, LH/FSH ratio, PRL level, and E2/T ratio, and large (effect size 0.50- ≤ 0.80) for FSH and T.
CONCLUSION This study reveals that leptin could be a potential biomarker for UI in Sudanese women and it may be useful for identifying women with a high risk of infertility.
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Affiliation(s)
- Abdullah Abdulslam Abdullah
- Department of Reproductive Health Sciences, Pan African University Life and Earth Sciences Institute, University of Ibadan, Ibadan 119, Oyo, Nigeria
- Department of Obstetrics and Gynecology, College of Medicine, University of Ibadan, Ibadan 119, Oyo, Nigeria
- Department of Biomedical Sciences, Faculty of Veterinary Sciences, University of Gadarif, Gadarif 208, Sudan
| | - Musa Ahmed
- Department of Obstetrics and Gynecology, College of Medicine, University of Ibadan, Ibadan 119, Oyo, Nigeria
- Department of Reproductive Health Sciences, Pan African University Life and Earth Sciences Institute, University of Ibadan, Ibadan 119, Oyo, Nigeria
- Department of Veterinary Surgery, Faculty of Veterinary Medicine, AL-Salam University, Al-fula 120, West Kordofan, Sudan
| | - Adesina Oladokun
- Department of Obstetrics and Gynecology, College of Medicine, University of Ibadan, Ibadan 119, Oyo, Nigeria
| | - Nasir Adam Ibrahim
- Department of Biology, Faculty of Science, Imam Mohammed Ibn Saud Islamic University, Riyadh 13318, Saudi Arabia
- Department of Biochemistry and Physiology, Faculty of Veterinary Medicine, University of Al-butana, Ruffaa 210, Sudan
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Roškar L, Pušić M, Roškar I, Kokol M, Pirš B, Smrkolj Š, Rižner TL. Models including preoperative plasma levels of angiogenic factors, leptin and IL-8 as potential biomarkers of endometrial cancer. Front Oncol 2022; 12:972131. [PMID: 36505829 PMCID: PMC9730274 DOI: 10.3389/fonc.2022.972131] [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: 06/17/2022] [Accepted: 10/26/2022] [Indexed: 11/27/2022] Open
Abstract
Background The diversity of endometrial cancer (EC) dictates the need for precise early diagnosis and pre-operative stratification to select treatment options appropriately. Non-invasive biomarkers invaluably assist clinicians in managing patients in daily clinical practice. Currently, there are no validated diagnostic or prognostic biomarkers for EC that could accurately predict the presence and extent of the disease. Methods Our study analyzed 202 patients, of whom 91 were diagnosed with EC and 111 were control patients with the benign gynecological disease. Using Luminex xMAP™ multiplexing technology, we measured the pre-operative plasma concentrations of six previously selected angiogenic factors - leptin, IL-8, sTie-2, follistatin, neuropilin-1, and G-CSF. Besides basic statistical methods, we used a machine-learning algorithm to create a robust diagnostic model based on the plasma concentration of tested angiogenic factors. Results The plasma levels of leptin were significantly higher in EC patients than in control patients. Leptin was higher in type 1 EC patients versus control patients, and IL-8 was higher in type 2 EC versus control patients, particularly in poorly differentiated endometrioid EC grade 3. IL-8 plasma levels were significantly higher in EC patients with lymphovascular or myometrial invasion. Among univariate models, the model based on leptin reached the best results on both training and test datasets. A combination of age, IL-8, leptin and G-CSF was determined as the most important feature for the multivariate model, with ROC AUC 0.94 on training and 0.81 on the test dataset. The model utilizing a combination of all six AFs, BMI and age reached a ROC AUC of 0.89 on both the training and test dataset, strongly indicating the capability for predicting the risk of EC even on unseen data. Conclusion According to our results, measuring plasma concentrations of angiogenic factors could, provided they are confirmed in a multicentre validation study, represent an important supplementary diagnostic tool for early detection and prognostic characterization of EC, which could guide the decision-making regarding the extent of treatment.
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Affiliation(s)
- Luka Roškar
- Department of Gynaecology and Obstetrics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia,Division of Gynaecology and Obstetrics, General Hospital Murska Sobota, Murska Sobota, Slovenia
| | - Maja Pušić
- Institute of Biochemistry and Molecular Genetics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Irena Roškar
- Institute of Biochemistry and Molecular Genetics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Marko Kokol
- Faculty of Electrical Engineering and Computer Science, University of Maribor, Maribor, Slovenia,Semantika Research, Semantika d.o.o., Maribor, Slovenia
| | - Boštjan Pirš
- Division of Gynaecology and Obstetrics, University Medical Centre, Ljubljana, Slovenia
| | - Špela Smrkolj
- Department of Gynaecology and Obstetrics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia,Division of Gynaecology and Obstetrics, University Medical Centre, Ljubljana, Slovenia,*Correspondence: Špela Smrkolj, ; Tea Lanišnik Rižner,
| | - Tea Lanišnik Rižner
- Institute of Biochemistry and Molecular Genetics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia,*Correspondence: Špela Smrkolj, ; Tea Lanišnik Rižner,
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Normand E, Franco A, Alos N, Parent S, Moreau A, Marcil V. Circulatory Adipokines and Incretins in Adolescent Idiopathic Scoliosis: A Pilot Study. CHILDREN (BASEL, SWITZERLAND) 2022; 9:1619. [PMID: 36360347 PMCID: PMC9688531 DOI: 10.3390/children9111619] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 10/20/2022] [Accepted: 10/21/2022] [Indexed: 08/26/2023]
Abstract
Adolescent idiopathic scoliosis (AIS) is a three-dimensional malformation of the spine of unknown cause that develops between 10 and 18 years old and affects 2-3% of adolescents, mostly girls. It has been reported that girls with AIS have a taller stature, lower body mass index (BMI), and bone mineral density (BMD) than their peers, but the causes remain unexplained. Energy metabolism discrepancies, including alterations in adipokine and incretin circulatory levels, could influence these parameters and contribute to disease pathophysiology. This pilot study aims to compare the anthropometry, BMD, and metabolic profile of 19 AIS girls to 19 age-matched healthy controls. Collected data include participants' fasting metabolic profile, anthropometry (measurements and DXA scan), nutritional intake, and physical activity level. AIS girls (14.8 ± 1.7 years, Cobb angle 27 ± 10°), compared to controls (14.8 ± 2.1 years), were leaner (BMI-for-age z-score ± SD: -0.59 ± 0.81 vs. 0.09 ± 1.11, p = 0.016; fat percentage: 24.4 ± 5.9 vs. 29.2 ± 7.2%, p = 0.036), had lower BMD (total body without head z-score ± SD: -0.6 ± 0.83 vs. 0.23 ± 0.98, p = 0.038; femoral neck z-score: -0.54 ± 1.20 vs. 0.59 ± 1.59, p = 0.043), but their height was similar. AIS girls had higher adiponectin levels [56 (9-287) vs. 32 (7-74) μg/mL, p = 0.005] and lower leptin/adiponectin ratio [0.042 (0.005-0.320) vs. 0.258 (0.024-1.053), p = 0.005]. AIS participants with a Cobb angle superior to 25° had higher resistin levels compared to controls [98.2 (12.8-287.2) vs. 32.1 (6.6-73.8), p = 0.0013]. This pilot study suggests that adipokines are implicated in AIS development and/or progression, but more work is needed to confirm their role in the disease.
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Affiliation(s)
- Emilie Normand
- Research Center of the CHU Sainte-Justine, Montreal, QC H3T 1C5, Canada
- Department of Nutrition, Faculty of Medicine, Université de Montréal, Montreal, QC H3T 1J4, Canada
| | - Anita Franco
- Research Center of the CHU Sainte-Justine, Montreal, QC H3T 1C5, Canada
- Viscogliosi Laboratory in Molecular Genetics and Musculoskeletal Diseases, Research Center of the CHU Sainte-Justine, Montreal, QC H3T 1C5, Canada
| | - Nathalie Alos
- Endocrine Service, Department of Pediatrics, CHU Sainte-Justine, Montreal, QC H3T 1J4, Canada
| | - Stefan Parent
- Department of Surgery, CHU Sainte-Justine, Montreal, QC H3T 1C5, Canada
| | - Alain Moreau
- Viscogliosi Laboratory in Molecular Genetics and Musculoskeletal Diseases, Research Center of the CHU Sainte-Justine, Montreal, QC H3T 1C5, Canada
- Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Université de Montréal, Montreal, QC H3T 1J4, Canada
- Department of Stomatology, Faculty of Dentistry, Université de Montréal, Montreal, QC H3A 1J4, Canada
| | - Valérie Marcil
- Research Center of the CHU Sainte-Justine, Montreal, QC H3T 1C5, Canada
- Department of Nutrition, Faculty of Medicine, Université de Montréal, Montreal, QC H3T 1J4, Canada
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Marchi PH, Vendramini THA, Perini MP, Zafalon RVA, Amaral AR, Ochamotto VA, Da Silveira JC, Dagli MLZ, Brunetto MA. Obesity, inflammation, and cancer in dogs: Review and perspectives. Front Vet Sci 2022; 9:1004122. [PMID: 36262532 PMCID: PMC9573962 DOI: 10.3389/fvets.2022.1004122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 08/31/2022] [Indexed: 11/13/2022] Open
Abstract
Obesity is the most common nutritional disease in dogs, and its prevalence has increased in recent decades. Several countries have demonstrated a prevalence of obesity in dogs similar to that observed in humans. Chronic low-grade inflammation is a prominent basis used to explain how obesity results in numerous negative health consequences. This is well known and understood, and recent studies have pointed to the association between obesity and predisposition to specific types of cancers and their complications. Such elucidations are important because, like obesity, the prevalence of cancer in dogs has increased in recent decades, establishing cancer as a significant cause of death for these animals. In the same way, intensive advances in technology in the field of human and veterinary medicine (which even proposes the use of animal models) have optimized existing therapeutic methods, led to the development of innovative treatments, and shortened the time to diagnosis of cancer. Despite the great challenges, this review aims to highlight the evidence obtained to date on the association between obesity, inflammation, and cancer in dogs, and the possible pathophysiological mechanisms that link obesity and carcinogenesis. The potential to control cancer in animals using existing knowledge is also presented.
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Affiliation(s)
- Pedro H. Marchi
- Pet Nutrology Research Center, Department of Animal Nutrition and Production of the School of Veterinary Medicine and Animal Science, University of São Paulo, Pirassununga, Brazil
| | - Thiago H. A. Vendramini
- Pet Nutrology Research Center, Department of Animal Nutrition and Production of the School of Veterinary Medicine and Animal Science, University of São Paulo, Pirassununga, Brazil
| | - Mariana P. Perini
- Pet Nutrology Research Center, Department of Animal Nutrition and Production of the School of Veterinary Medicine and Animal Science, University of São Paulo, Pirassununga, Brazil
| | - Rafael V. A. Zafalon
- Pet Nutrology Research Center, Department of Animal Nutrition and Production of the School of Veterinary Medicine and Animal Science, University of São Paulo, Pirassununga, Brazil
| | - Andressa R. Amaral
- Veterinary Nutrology Service, Veterinary Teaching Hospital of the School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil
| | - Vanessa A. Ochamotto
- Pet Nutrology Research Center, Department of Animal Nutrition and Production of the School of Veterinary Medicine and Animal Science, University of São Paulo, Pirassununga, Brazil
| | - Juliano C. Da Silveira
- Laboratory of Molecular, Morphophysiology and Development (LMMD), Department of Veterinary Medicine, Faculty of Animal Science and Food Engineering, University of São Paulo, Pirassununga, Brazil
| | - Maria L. Z. Dagli
- Laboratory of Experimental and Comparative Oncology, Department of Pathology, School of Veterinary Medicine and Animal Science of the University of São Paulo, São Paulo, Brazil
| | - Marcio A. Brunetto
- Pet Nutrology Research Center, Department of Animal Nutrition and Production of the School of Veterinary Medicine and Animal Science, University of São Paulo, Pirassununga, Brazil,Veterinary Nutrology Service, Veterinary Teaching Hospital of the School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil,*Correspondence: Marcio A. Brunetto
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Hinney A, Körner A, Fischer-Posovszky P. The promise of new anti-obesity therapies arising from knowledge of genetic obesity traits. Nat Rev Endocrinol 2022; 18:623-637. [PMID: 35902734 PMCID: PMC9330928 DOI: 10.1038/s41574-022-00716-0] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/17/2022] [Indexed: 02/07/2023]
Abstract
Obesity is a multifactorial and complex disease that often manifests in early childhood with a lifelong burden. Polygenic and monogenic obesity are driven by the interaction between genetic predisposition and environmental factors. Polygenic variants are frequent and confer small effect sizes. Rare monogenic obesity syndromes are caused by defined pathogenic variants in single genes with large effect sizes. Most of these genes are involved in the central nervous regulation of body weight; for example, genes of the leptin-melanocortin pathway. Clinically, patients with monogenic obesity present with impaired satiety, hyperphagia and pronounced food-seeking behaviour in early childhood, which leads to severe early-onset obesity. With the advent of novel pharmacological treatment options emerging for monogenic obesity syndromes that target the central melanocortin pathway, genetic testing is recommended for patients with rapid weight gain in infancy and additional clinical suggestive features. Likewise, patients with obesity associated with hypothalamic damage or other forms of syndromic obesity involving energy regulatory circuits could benefit from these novel pharmacological treatment options. Early identification of patients affected by syndromic obesity will lead to appropriate treatment, thereby preventing the development of obesity sequelae, avoiding failure of conservative treatment approaches and alleviating stigmatization of patients and their families.
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Affiliation(s)
- Anke Hinney
- Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy and University Hospital Essen, University of Duisburg-Essen, Essen, Germany.
- Center for Translational Neuro- and Behavioral Sciences, University Hospital Essen, University of Duisburg-Essen, Essen, Germany.
| | - Antje Körner
- Leipzig University, Medical Faculty, Hospital for Children and Adolescents, Centre of Paediatric Research (CPL), Leipzig, Germany
- LIFE Child, Leipzig Research Centre for Civilization Diseases, Leipzig, Germany
- Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI-MAG) of the Helmholtz Zentrum München at the University of Leipzig and University Hospital Leipzig, Leipzig, Germany
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Buonaiuto R, Napolitano F, Parola S, De Placido P, Forestieri V, Pecoraro G, Servetto A, Formisano L, Formisano P, Giuliano M, Arpino G, De Placido S, De Angelis C. Insight on the Role of Leptin: A Bridge from Obesity to Breast Cancer. Biomolecules 2022; 12:biom12101394. [PMID: 36291602 PMCID: PMC9599120 DOI: 10.3390/biom12101394] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 09/21/2022] [Accepted: 09/25/2022] [Indexed: 11/26/2022] Open
Abstract
Leptin is a peptide hormone, mainly known for its role as a mediator of adipose tissue endocrine functions, such as appetite control and energy homeostasis. In addition, leptin signaling is involved in several physiological processes as modulation of innate and adaptive immune responses and regulation of sex hormone levels. When adipose tissue expands, an imbalance of adipokines secretion may occur and increasing leptin levels contribute to promoting a chronic inflammatory state, which is largely acknowledged as a hallmark of cancer. Indeed, upon binding its receptor (LEPR), leptin activates several oncogenic pathways, such as JAK/STAT, MAPK, and PI3K/AKT, and seems to affect cancer immune response by inducing a proinflammatory immune polarization and eventually enhancing T-cell exhaustion. In particular, obesity-associated hyperleptinemia has been related to breast cancer risk development, although the underlying mechanism is yet to be completely clarified and needs to be deemed in light of multiple variables, such as menopausal state and immune response. The aim of this review is to provide an overview of the potential role of leptin as a bridge between obesity and breast cancer and to establish the physio-pathological basis of the linkage between these major health concerns in order to identify appropriate and novel therapeutic strategies to adopt in daily clinical practice.
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Affiliation(s)
- Roberto Buonaiuto
- Department of Clinical Medicine and Surgery, University of Naples Federico II, 80131 Naples, Italy
| | - Fabiana Napolitano
- Department of Clinical Medicine and Surgery, University of Naples Federico II, 80131 Naples, Italy
| | - Sara Parola
- Department of Clinical Medicine and Surgery, University of Naples Federico II, 80131 Naples, Italy
| | - Pietro De Placido
- Department of Clinical Medicine and Surgery, University of Naples Federico II, 80131 Naples, Italy
| | - Valeria Forestieri
- Department of Clinical Medicine and Surgery, University of Naples Federico II, 80131 Naples, Italy
| | - Giovanna Pecoraro
- Department of Clinical Medicine and Surgery, University of Naples Federico II, 80131 Naples, Italy
| | - Alberto Servetto
- Department of Clinical Medicine and Surgery, University of Naples Federico II, 80131 Naples, Italy
| | - Luigi Formisano
- Department of Clinical Medicine and Surgery, University of Naples Federico II, 80131 Naples, Italy
| | - Pietro Formisano
- Department of Translational Medicine, University of Naples Federico II, 80131 Naples, Italy
| | - Mario Giuliano
- Department of Clinical Medicine and Surgery, University of Naples Federico II, 80131 Naples, Italy
| | - Grazia Arpino
- Department of Clinical Medicine and Surgery, University of Naples Federico II, 80131 Naples, Italy
| | - Sabino De Placido
- Department of Clinical Medicine and Surgery, University of Naples Federico II, 80131 Naples, Italy
| | - Carmine De Angelis
- Department of Clinical Medicine and Surgery, University of Naples Federico II, 80131 Naples, Italy
- Correspondence:
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Murawska-Ciałowicz E, Kaczmarek A, Kałwa M, Oniszczuk A. Influence of Training and Single Exercise on Leptin Level and Metabolism in Obese Overweight and Normal-Weight Women of Different Age. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:12168. [PMID: 36231470 PMCID: PMC9565933 DOI: 10.3390/ijerph191912168] [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: 08/18/2022] [Revised: 09/17/2022] [Accepted: 09/19/2022] [Indexed: 06/16/2023]
Abstract
Leptin is one of the important hormones secreted by adipose tissue. It participates in the regulation of energy processes in the body through central and peripheral mechanisms. The aim of this study was to analyse the anthropological and physical performance changes during 9 month training in women of different age and body mass. The additional aim was the analysis of leptin levels in the fasting stage and after a control exercise. Obese (O), overweight (OW), and normal-weight (N) women participated in the study. Additional subgroups of premenopausal (PRE) (<50 years) and postmenopausal (POST) (50+) women were created for leptin level analysis. The main criterion of the division into subgroups was the age of menopause in the population. The control submaximal test and maximal oxygen uptake (VO2max) according to Astrand-Rhyming procedures was performed at baseline and after 3, 6, and 9 months. Before each control test, body weight (BM), body mass index (BMI), percentage of adipose tissue (% FAT), and mass (FAT (kg)) were measured. Moreover, before and after each test, leptin level was measured. After 9 months, there was a significant decrease in BM in the O (p < 0.05) and OW (p < 0.05) groups with no significant changes in the N group. There was a decrease in BMI in both the O (p < 0.05) and the OW (p < 0.05) groups, with no changes in the N group. The % FAT reduction was noted only in the O group (p < 0.05). VO2max increased in each of the measured groups (p < 0.05). The fasting leptin level at 0, 3, 6, and 9 months were the highest in the O group. The fasting leptin level before training was highest in the O group compared to the OW group (p < 0.01) and the N group (p < 0.01). It was also higher in the OW group compared to the N group at baseline (0) (p < 0.01) and after 3 and 6 months (p < 0.01). After 9 months, the leptin concentration decreased by 20.2% in the O group, 40.7% in the OW group, and 33% in the N group. Moreover, the fasting leptin level was higher in the POST subgroup compared to the PRE group in the whole group of women (p < 0.05). After a single exercise, the level of leptin in the whole study group decreased (p < 0.05). This was clearly seen, especially in the POST group. The 9 month training had a reducing effect on the blood leptin concentration in groups O, OW, and N. This may have been a result of weight loss and the percentage of fat in the body, as well as systematically disturbed energy homeostasis.
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Affiliation(s)
- Eugenia Murawska-Ciałowicz
- Physiology and Biochemistry Department, Wroclaw University of Health and Sport Sciences, 51-612 Wroclaw, Poland
| | - Agnieszka Kaczmarek
- Physiology and Biochemistry Department, Wroclaw University of Health and Sport Sciences, 51-612 Wroclaw, Poland
| | - Małgorzata Kałwa
- Sport Didactics Department, Wroclaw University of Health and Sport Sciences, 51-612 Wroclaw, Poland
| | - Anna Oniszczuk
- Physiology and Biochemistry Department, Wroclaw University of Health and Sport Sciences, 51-612 Wroclaw, Poland
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Liu Z, Ding S, Jiang H, Fang J. Egg Protein Transferrin-Derived Peptides Irw (Lle-Arg-Trp) and Iqw (Lle-Gln-Trp) Prevent Obesity Mouse Model Induced by a High-Fat Diet via Reducing Lipid Deposition and Reprogramming Gut Microbiota. Int J Mol Sci 2022; 23:ijms231911227. [PMID: 36232527 PMCID: PMC9569728 DOI: 10.3390/ijms231911227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 09/19/2022] [Accepted: 09/19/2022] [Indexed: 11/16/2022] Open
Abstract
Egg-derived peptides play important roles in insulin secretion and sensitivity, oxidative stress, and inflammation, suggesting their possible involvement in obesity management. Hence, the aim of this study is to explore the alleviating effects of IRW (lle-Arg-Trp) and IQW (lle-Gln-Trp) on obesity via the mouse model induced by a high-fat diet. The entire experimental period lasted eight weeks. The results demonstrated that IQW prevented weight gain (6.52%), decreased the glucose, low-density lipoprotein (LDL), malonaldehyde, triglycerides, total cholesterol (TC), and leptin levels, and increased the concentration of adiponectin (p < 0.05, n = 8). Although IRW failed to prevent weight gain, it reduced the concentration of glucose, high-density lipoprotein (HDL), LDL, and leptin, and increased the concentration of adiponectin (p < 0.05, n = 8). Moreover, IRW and IQW increased glucose tolerance and insulin resistance based on the results of the intraperitoneal glucose test and insulin tolerance test (p < 0.05, n = 8). The quantitative polymerase chain reaction results revealed that IRW and IQW downregulated the mRNA expression of DGAT1 (Diacylglycerol O-Acyltransferase 1), DGAT2 (Diacylglycerol O-Acyltransferase 2), TNF-α, IL-6, and IL-1β of liver tissue (p < 0.05, n = 8). The results of the 16S ribosomal RNA amplicon sequencing showed that IQW and IRW tended to reduce the relative abundance of Firmicutes and Parabacteroides, and that IRW enhanced the abundance of Bacteroides (p < 0.05, n = 8). Collectively, IRW and IQW supplementation could alleviate the progression of obesity due to the fact that the supplementation reduced lipid deposition, maintained energy balance, and reprogrammed gut microbiota.
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Affiliation(s)
- Zhuangzhuang Liu
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China
| | - Sujuan Ding
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, CAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Changsha 410125, China
| | - Hongmei Jiang
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China
| | - Jun Fang
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China
- Correspondence: ; Tel.: +86-731-8461-3600
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Lederer AK, Storz MA, Huber R, Hannibal L, Neumann E. Plasma Leptin and Adiponectin after a 4-Week Vegan Diet: A Randomized-Controlled Pilot Trial in Healthy Participants. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph191811370. [PMID: 36141644 PMCID: PMC9517500 DOI: 10.3390/ijerph191811370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 09/05/2022] [Accepted: 09/06/2022] [Indexed: 05/12/2023]
Abstract
Adiponectin and leptin are important mediators of metabolic homeostasis. The actions of these adipokines extend beyond adipocytes and include systemic modulation of lipid and glucose metabolism, nutrient flux, and the immune response to changes in nutrition. Herein, we hypothesized that short-term intervention with a vegan diet might result in an improvement of plasma concentrations of adiponectin and leptin and the leptin/adiponectin ratio. We investigated the response of plasma adiponectin and leptin to a 4-week intervention with a vegan or meat-rich diet and its associations with sex, BMI and nutritional intake. Fifty-three healthy, omnivore participants (62% female, average age 31 years and BMI 23.1 kg/m2) were randomly assigned to a vegan or meat-rich diet for 4 weeks. Plasma adiponectin and leptin were lower in men compared to women both at the beginning and end of the trial. The concentration of adiponectin in women was significantly higher both when comparing their transition from omnivorous to vegan diet (p = 0.023) and also for vegan versus meat-rich diet at the end of the trial (p = 0.001), whereas plasma leptin did not vary significantly. No changes in adiponectin were identified in men, yet an increase in leptin occurred upon their transition from an omnivorous to a meat-rich diet (p = 0.019). Examination of plasma adiponectin/leptin ratio, a proposed marker of cardiovascular risk, did not differ after 4-weeks of dietary intervention. Our study revealed that adiponectin and leptin concentrations are sensitive to short-term dietary intervention in a sex-dependent manner. This dietary modification of leptin and adiponectin not only occurs quickly as demonstrated in our study, but it remains such as published in studies with individuals who are established (long-term) vegetarians compared to omnivorous.
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Affiliation(s)
- Ann-Kathrin Lederer
- Center for Complementary Medicine, Department of Medicine II, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany
- Department of General, Visceral, and Transplant Surgery, University Medical Center Mainz, 55131 Mainz, Germany
- Correspondence: ; Tel.: +49-761-27082010
| | - Maximilian Andreas Storz
- Center for Complementary Medicine, Department of Medicine II, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany
| | - Roman Huber
- Center for Complementary Medicine, Department of Medicine II, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany
| | - Luciana Hannibal
- Laboratory of Clinical Biochemistry and Metabolism, Department of General Pediatrics, Adolescent Medicine and Neonatology, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany
| | - Elena Neumann
- Department of Rheumatology and Clinical Immunology, Campus Kerckhoff, Justus-Liebig-University Giessen, 61213 Bad Nauheim, Germany
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El-Kafoury B, Mohamed F, Bahgat N, El Samad AA, Shawky M, Abdel-Hady EA. Failure of subcutaneous lipectomy to combat metabolic dysregulations in ovariectomy-induced obesity in young female rats. Hormones (Athens) 2022; 21:421-436. [PMID: 35486321 PMCID: PMC9464754 DOI: 10.1007/s42000-022-00371-0] [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] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 04/12/2022] [Indexed: 11/28/2022]
Abstract
PURPOSE The deleterious effect of visceral adipose tissue accumulation is well known. However, the recent trend in liposuction is mal-directed toward easily accessible subcutaneous fat for the purpose of body shaping. The aim of the present study is to probe the metabolic effects of subcutaneous abdominal adipose tissue lipectomy in ovariectomized obese rats as well as the role of adipokines in these changes. METHODS The study was conducted on young female rats randomized into two main groups according to the duration of the experiment, namely, 5-week and 10-week. Both groups were subdivided as follows: sham-operated, ovariectomized, and ovariectomized lipectomized rat groups. The rats underwent measurement of body weight (BW) and determination of body mass index (BMI). Fasting blood glucose, lipid profile, liver function, plasma malondialdehyde, leptin, and adiponectin were estimated, and the content of both blood and hepatic tissue of reduced glutathione was assessed. In addition, histological study of the liver, aorta, and perirenal fat of all rat groups was performed. RESULTS Ovariectomy-induced obesity is marked by a significant increase in BW and BMI. Following subcutaneous lipectomy, the rats exhibited significant weight gain accompanied by fasting hyperglycemia, dyslipidemia, deterioration of synthetic function of the liver, and disturbed oxidant/antioxidant status. Histological examination revealed fatty infiltration of aortic and hepatic tissues. CONCLUSION Despite the immediate positive effect of subcutaneous lipectomy for weight loss and/or body shaping, multiple delayed hazards follow the procedure, which should be carefully considered.
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Affiliation(s)
- Bataa El-Kafoury
- Physiology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Fatma Mohamed
- Physiology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Nehal Bahgat
- Physiology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Abeer Abd El Samad
- Histology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Mona Shawky
- Physiology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Enas A Abdel-Hady
- Physiology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt.
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Kim TH, Bae N, Kim T, Hsu AL, Hunter MI, Shin JH, Jeong JW. Leptin Stimulates Endometriosis Development in Mouse Models. Biomedicines 2022; 10:biomedicines10092160. [PMID: 36140261 PMCID: PMC9496281 DOI: 10.3390/biomedicines10092160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 08/23/2022] [Accepted: 08/27/2022] [Indexed: 11/24/2022] Open
Abstract
Endometriosis is a chronic inflammatory condition in women, and obesity leads to an inflammatory condition that is directly involved in the etiology of endometriosis. However, observational studies have shown an inverse correlation between endometriosis and a low body mass index (BMI). Obesity does not protect against endometriosis, and on the contrary, an increased BMI may lead to more severe forms of the disease. To determine the effect of obesity on endometriosis, diet-induced and genetically engineered obese mouse models were integrated with endometriosis mouse models with fluorescence-tagged ectopic lesions. High-fat diet-induced obese mice revealed a significant increase in endometriosis development compared with regular-diet control mice. However, obese recipient mice with leptin deficiency and leptin receptor deficiency showed suppressed endometriosis development compared with control mice. Furthermore, donor uterine tissues with leptin deficiency and leptin receptor deficiency suppressed endometriosis development compared with control donor in control recipient mice. Importantly, we revealed that aberrant high levels of leptin concentration significantly increased endometriosis development compared with vehicle treatment group in control mice with normal body weight. Our results suggest that leptin and its receptor are critical for endometriosis development.
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Affiliation(s)
- Tae Hoon Kim
- Department of Obstetrics, Gynecology & Reproductive Biology, Michigan State University, Grand Rapids, MI 49534, USA
| | - Nayoung Bae
- Division of Reproductive Endocrinology, Department of Obstetrics and Gynecology, Guro Hospital, Korea University Medical Center, Seoul 02841, Korea
| | - Taeho Kim
- Department of Biomedical Engineering, Michigan State University, East Lansing, MI 48824, USA
| | - Albert L. Hsu
- Reproductive Medicine and Fertility Center, Department of Obstetrics, Gynecology & Women’s Health, University of Missouri School of Medicine, Columbia, MO 65202, USA
| | - Mark I. Hunter
- Department of Obstetrics, Gynecology & Women’s Health, University of Missouri School of Medicine, Columbia, MO 65202, USA
| | - Jung-Ho Shin
- Division of Reproductive Endocrinology, Department of Obstetrics and Gynecology, Guro Hospital, Korea University Medical Center, Seoul 02841, Korea
- Correspondence: (J.-H.S.); (J.-W.J.)
| | - Jae-Wook Jeong
- Department of Obstetrics, Gynecology & Reproductive Biology, Michigan State University, Grand Rapids, MI 49534, USA
- Correspondence: (J.-H.S.); (J.-W.J.)
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Reiterer M, Gilani A, Lo JC. Pancreatic Islets as a Target of Adipokines. Compr Physiol 2022; 12:4039-4065. [PMID: 35950650 DOI: 10.1002/cphy.c210044] [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]
Abstract
Rising rates of obesity are intricately tied to the type 2 diabetes epidemic. The adipose tissues can play a central role in protection against or triggering metabolic diseases through the secretion of adipokines. Many adipokines may improve peripheral insulin sensitivity through a variety of mechanisms, thereby indirectly reducing the strain on beta cells and thus improving their viability and functionality. Such effects will not be the focus of this article. Rather, we will focus on adipocyte-secreted molecules that have a direct effect on pancreatic islets. By their nature, adipokines represent potential druggable targets that can reach the islets and improve beta-cell function or preserve beta cells in the face of metabolic stress. © 2022 American Physiological Society. Compr Physiol 12:1-27, 2022.
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Affiliation(s)
- Moritz Reiterer
- Division of Cardiology, Department of Medicine, Weill Center for Metabolic Health, Cardiovascular Research Institute, Weill Cornell Medicine, New York, New York, USA
| | - Ankit Gilani
- Division of Cardiology, Department of Medicine, Weill Center for Metabolic Health, Cardiovascular Research Institute, Weill Cornell Medicine, New York, New York, USA
| | - James C Lo
- Division of Cardiology, Department of Medicine, Weill Center for Metabolic Health, Cardiovascular Research Institute, Weill Cornell Medicine, New York, New York, USA
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Casper RC. Restlessness and an Increased Urge to Move (Drive for Activity) in Anorexia Nervosa May Strengthen Personal Motivation to Maintain Caloric Restriction and May Augment Body Awareness and Proprioception: A Lesson From Leptin Administration in Anorexia Nervosa. Front Psychol 2022; 13:885274. [PMID: 35959022 PMCID: PMC9359127 DOI: 10.3389/fpsyg.2022.885274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Accepted: 06/20/2022] [Indexed: 12/02/2022] Open
Abstract
Anorexia nervosa (AN), a disorder of voluntary food restriction leading to severe weight loss in female adolescents, remains an enigma. In particular, the appropriation of the starved thin body into the self-concept in AN is a process insufficiently researched and still poorly understood. Healthy humans undergoing starvation experience a slowing of movements and avoid voluntary exercise. By contrast, AN tends to be not infrequently associated with voluntary, sometimes excessive and/or compulsive exercise. Such deliberate exercise, not reported in starvation, seems to be facilitated by an increased urge for movement and physical restlessness, particular to AN. The increased urge to move would reflect spontaneous daily activity, the energy expended for everything that is not sleeping, eating, or voluntary exercise. Our hypothesis is that the starvation-induced increased urge to move and restlessness may promote the development of AN. Reversal of the fasting state, by either high caloric food or by leptin administration, would be expected to reduce restlessness and the increased urge to move along with improvement in other symptoms in AN. This review explores the idea that such restless activation in AN, in itself and through accelerating body weight loss, might foster the integration of the starving body into the self-concept by (1) enhancing the person’s sense of self-control and sense of achievement and (2) through invigorating proprioception and through intensifying the perception of the changing body shape. (3) Tentative evidence from studies piloting leptin administration in chronic AN patients which support this hypothesis is reviewed. The findings show that short term administration of high doses of leptin indeed mitigated depressive feelings, inner tension, intrusive thoughts of food, and the increased urge to be physically active, easing the way to recovery, yet had little influence on the patients’ personal commitment to remain at a low weight. Full recovery then requires resolution of the individuals’ personal unresolved psychological conflicts through psychotherapy and frequently needs specialized treatment approaches to address psychiatric co-morbidities. AN might be conceptualized as a hereditary form of starvation resistance, facilitated by the effects of starvation on fitness allowing for an exceptionally intense personal commitment to perpetuate food restriction.
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