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Adipokines

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https://www.readbyqxmd.com/read/29675584/brown-adipokines
#1
Francesc Villarroya, Aleix Gavaldà-Navarro, Marion Peyrou, Joan Villarroya, Marta Giralt
Brown adipokines are regulatory factors secreted by brown and beige adipocytes that exhibit endocrine, paracrine, and autocrine actions. Peptidic and non-peptidic molecules, including miRNAs and lipids, are constituents of brown adipokines. Brown adipose tissue remodeling to meet thermogenic needs is dependent on the secretory properties of brown/beige adipocytes. The association between brown fat activity and a healthy metabolic profile, in relation to energy balance and glucose and lipid homeostasis, is influenced by the endocrine actions of brown adipokines...
April 20, 2018: Handbook of Experimental Pharmacology
https://www.readbyqxmd.com/read/29675553/a-potential-strategy-for-treating-atherosclerosis-improving-endothelial-function-via-amp-activated-protein-kinase
#2
REVIEW
Feng Gao, Jiemei Chen, Haibo Zhu
Endothelial dysfunction is caused by many factors, such as dyslipidemia, endoplasmic reticulum (ER) stress, and inflammation. It has been demonstrated that endothelial dysfunction is the initial process of atherosclerosis. AMP-activated protein kinase (AMPK) is an important metabolic switch that plays a crucial role in lipid metabolism and inflammation. However, recent evidence indicates that AMPK could be a target for atherosclerosis by improving endothelial function. For instance, activation of AMPK inhibits the production of reactive oxygen species induced by mitochondrial dysfunction, ER stress, and NADPH oxidase...
April 16, 2018: Science China. Life Sciences
https://www.readbyqxmd.com/read/29674409/associations-of-adiponectin-leptin-levels-and-the-change-of-body-composition-in-patients-on-peritoneal-dialysis-a-prospective-cohort-study
#3
Xiao Xu, Xue Tian, Yuan Chen, Zhi-Kai Yang, Zhen Qu, Jie Dong
BACKGROUND: Although the association between adipokines such as adiponectin, leptin, and body composition has been noted, whether they could predict the change of fat mass and lean body mass is unknown. We aimed to examine these associations in patients on peritoneal dialysis (PD) through a prospective cohort study. METHODS: Body composition (by dual-energy x-ray absorptiometry) including fat mass and lean body mass were examined at baseline and then at year 3. Serum leptin and adiponectin levels were measured...
April 19, 2018: Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis
https://www.readbyqxmd.com/read/29673927/novel-adipokines-vaspin-and-irisin-as-risk-biomarkers-for-cardiovascular-diseases-in-type-2-diabetes-mellitus
#4
Dalia H El-Lebedy, Alshaymaa A Ibrahim, Ingy O Ashmawy
AIMS: Vaspin and irisin are novel cytokines proposed as potential new biomarkers of insulin resistance and endothelial dysfunction. This work is to investigate circulating levels of vaspin and irisin in patients with type 2 diabetes mellitus (T2DM) with and without cardiovascular disease (CVD) to study potential association with disease risk. MATERIALS AND METHODS: Circulating levels of vaspin and irisin were assayed in serum from 135 T2DM patients (with and without CVD) and 70 control subjects by ELISA...
April 12, 2018: Diabetes & Metabolic Syndrome
https://www.readbyqxmd.com/read/29671182/self-reported-dietary-flavonoid-intake-and-serum-markers-of-inflammation-the-multiethnic-cohort
#5
Sabine Rohrmann, Yurii B Shvetsov, Yukiko Morimoto, Lynne R Wilkens, Kristine R Monroe, Loïc Le Marchand, Adrian A Franke, Laurence N Kolonel, Gertraud Maskarinec
PURPOSE: To examine if dietary intake of foods rich in flavonoids, which have been shown to be inversely associated with chronic diseases, is associated with inflammatory processes. METHODS: This analysis includes controls of case-control studies nested within the Multiethnic Cohort (MEC) who completed a validated food frequency questionnaire at cohort entry. Biomarkers were assessed in blood donated during follow-up (mean = 9.6 years). We used multivariate linear regression adjusted for potential confounders to estimate associations between intake of flavanones, flavonols, and isoflavones and levels of adiponectin, leptin, C-reactive protein, interleukin (IL)-1β, IL-6, IL-10, and tumor necrosis factor-α...
April 18, 2018: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/29670847/changes-of-insulin-resistance-and-adipokines-following-supplementation-with-glycyrrhiza-glabra-l-extract-in-combination-with-a-low-calorie-diet-in-overweight-and-obese-subjects-a-randomized-double-blind-clinical-trial
#6
Mohammad Alizadeh, Nazli Namazi, Elham Mirtaheri, Nafiseh Sargheini, Sorayya Kheirouri
Purpose: Adipose tissue is a highly active endocrine organ which plays a key role in energy homeostasis. The aim of this study was to determine the effects of dried licorice extract along with a calorie restricted diet on body composition, insulin resistance and adipokines in overweight and obese subjects. Methods: Sixty-four overweight and obese volunteers (27 men, 37 women) were recruited into this double-blind, placebo-controlled, randomized, clinical trial. Participants were randomly allocated to the Licorice (n=32) or the placebo group (n=32), and each group received a low-calorie diet with either 1...
March 2018: Advanced Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/29669464/adiponectin-and-chemerin-contrary-adipokines-in-regulating-reproduction-and-metabolic-disorders
#7
Anusha Singh, Mayank Choubey, Puran Bora, Amitabh Krishna
Metabolic disorders such as obesity and type 2 diabetes are one of the most familiar risk factors in the present time among every age-group. It is associated with altered levels of adipokines such as adiponectin, chemerin, leptin, resistin, visfatin, and so on. Adiponectin is one of the adipocyte-specific protein with novel applications pertaining to metabolism by promoting insulin sensitivity and regulating glucose and fatty acid catabolism, while chemerin is considered as an inhibitor of insulin signaling and glucose catabolism...
January 1, 2018: Reproductive Sciences
https://www.readbyqxmd.com/read/29668463/changes-to-trimethylamine-n-oxide-and-its-precursors-in-nascent-metabolic-syndrome
#8
Daniella Lent-Schochet, Ryan Silva, Matthew McLaughlin, Beverley Huet, Ishwarlal Jialal
Background Metabolic syndrome (MetS), a cardio-metabolic cluster afflicting 35% of American adults, increases cardiovascular disease (CVD) and type-2 diabetes (T2DM) risk. Increased levels of trimethylamine N-oxide (TMAO), a metabolite derived from choline and L-carnitine, correlates with CVD and T2DM. However, the precise role of TMAO and its precursors in MetS remains unclear. We tested the hypothesis that choline, L-carnitine and TMAO in MetS patients without CVD or T2DM would be altered and correlate with inflammatory markers...
April 18, 2018: Hormone Molecular Biology and Clinical Investigation
https://www.readbyqxmd.com/read/29665658/effect-of-the-anti-il-17-antibody-on-allergic-inflammation-in-an-obesity-related-asthma-model
#9
Lin Liang, Jung Hur, Ji Young Kang, Chin Kook Rhee, Young Kyoon Kim, Sook Young Lee
Background/Aims: The co-occurrence of obesity aggravates asthma symptoms. Diet-induced obesity increases helper T cell (TH) 17 cell differentiation in adipose tissue and the spleen. The 3-hydroxy-3-methylglutaryl-coenzyme A reductase inhibitor pravastatin can potentially be used to treat asthma in obese patients by inhibiting interleukin 17 (IL-17) expression. This study investigated the combined effects of pravastatin and anti-IL-17 antibody treatment on allergic inflammation in a mouse model of obesity-related asthma...
April 19, 2018: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/29665358/hyperinsulinemic-euglycemic-clamp-over-the-first-year-of-use-of-depot-medroxyprogesterone-acetate-as-a-contraceptive
#10
Vaneska Melhado-Kimura, Gisele Almeida Batista, Aglécio Luiz de Souza, Priscilla de Nazaré Silva Dos Santos, Sarah Monte Alegre, Elizabeth João Pavin, Luis Bahamondes, Arlete Fernandes
OBJECTIVE: The literature lacks data on the use of the gold-standard hyperinsulinemic-euglycemic clamp (HEC) technique for the evaluation of insulin resistance (IR) in depot-medroxyprogesterone acetate (DMPA) users. This study assessed carbohydrate metabolism in non-obese users of DMPA using the HEC technique. STUDY DESIGN: A prospective, non-randomized, comparative study conducted at the Family Planning Clinic/Metabolic Unit, University of Campinas, Brazil. Forty-eight women aged 18-39 years underwent HEC: 30 initiating use of DMPA and 18 initiating use of a copper intrauterine device (IUD)...
April 14, 2018: Contraception
https://www.readbyqxmd.com/read/29662759/investigation-of-bioeffects-of-g-protein-coupled-receptor-1-on-bone-turnover-in-male-mice
#11
Jian Li, Liang Xiang, Xiaotong Jiang, Bin Teng, Yutao Sun, Guanlian Chen, Jie Chen, Jian V Zhang, Pei-Gen Ren
Maintenance of healthy bone quality and quantity requires a well-coordinated balance between bone formation by osteoblasts and bone resorption by osteoclasts. Chemerin is a novel adipokine with known functions such as regulating immunity and energy homeostasis through activation of chemokine-like receptor 1 (CMKLR1). G protein-coupled receptor 1 (GPR1) is the second mammalian chemerin receptor with similar binding affinity as CMKLR1. In male GPR1-/- mice, a phenotype with significantly low bone mineral density was observed...
July 2017: Journal of Orthopaedic Translation
https://www.readbyqxmd.com/read/29658354/serum-chemerin-level-in-women-with-pcos-and-its-relation-with-the-risk-of-spontaneous-abortion
#12
Xuezhou Yang, Xiaozhen Quan, Yanli Lan, Qipeng Wei, Jinhai Ye, Xiaofang Yin, Zhisong Ji, Hui Xing, Ying Yang
BACKGROUND AND AIM: Insulin resistance (IR) was recognized as a risk factor for the occurrence of abortion in patients with polycystic ovary syndrome (PCOS). Chemerin was an adipokine which could induce IR and associated with reproductive process closely. However, few studies have inquired the relativity between chemerin and the occurrence of abortion in patients with PCOS. The aim of this study was to evaluate the relationship between serum chemerin and the occurrence of abortion in women with PCOS...
April 16, 2018: Gynecological Endocrinology
https://www.readbyqxmd.com/read/29655569/activation-of-the-porcine-alveolar-macrophages-via-toll-like-receptor-4-nf-%C3%AE%C2%BAb-mediated-pathway-provides-a-mechanism-of-resistin-leading-to-inflammation
#13
Bi Li, Jing Fang, Zhicai Zuo, Sirui Yin, Tingting He, Mingxian Yang, Junliang Deng, Liuhong Shen, Xiaoping Ma, Shumin Yu, Ya Wang, Zhihua Ren, Hengmin Cui
Resistin, a previously discovered cysteine-rich adipokine known to regulate glucose metabolism, has been emerged as a mediator in inflammation and immunity. Its level was supposed to be related to the expression of indicators, such as interleukin-1β (IL-1β), IL-6 and tumor necrosis factor-α (TNF-α) in inflammation. Toll-like receptor 4 (TLR4) was reported to be a receptor for resistin in cells, like leukocytes and peripheral blood mononuclear cells (PBMC). However, the pro-inflammatory role of resistin and its intracellular mechanisms in alveolar macrophages have not been thoroughly validated...
April 11, 2018: Cytokine
https://www.readbyqxmd.com/read/29655462/obesity-thrombotic-risk-and-inflammation-in-cancer
#14
Benjamín Rubio-Jurado, Luz-Ma-Adriana Balderas-Peña, Eduardo E García-Luna, María G Zavala-Cerna, Carlos Riebeling-Navarro, Pedro A Reyes, Arnulfo H Nava-Zavala
Neoplasms exhibits a high incidence and mortality rates due to their complex and commonly overlapping clinical, biochemical, and morphologic profiles influenced by acquired or inherited molecular abnormalities, cell of origin, and level of differentiation. Obesity appears related to ~20% of cancers including endometrial, esophageal, colorectal, postmenopausal breast, prostate, and renal. Several factors other than obesity, i.e., insulin, insulin-like growth factor, sexual hormones, and adipokines may play a potential role in neoplasia...
2018: Advances in Clinical Chemistry
https://www.readbyqxmd.com/read/29653285/adipokines-and-bone-status-in-a-cohort-of-anorexic-patients
#15
Isabelle Legroux-Gérot, Jean Vignau, Odile Viltart, Pierre Hardouin, Christophe Chauveau, Bernard Cortet
INTRODUCTION: Bone loss in anorexia nervosa (AN) is multifactorial; its mechanisms are not yet clearly understood and may vary depending on disease duration and severity. To determine to what extent adipokines may be involved in the bone alterations found in anorexic patients, we evaluated plasma levels for leptin, adiponectin and Pref-1 against other clinical and biological parameters in a population of anorexic patients split according to weight and bone status. METHODS: Plasma concentrations of leptin, total adiponectin, high molecular weight (HMW) adiponectin, and Pref-1 were measured...
April 10, 2018: Joint, Bone, Spine: Revue du Rhumatisme
https://www.readbyqxmd.com/read/29653259/bisphenol-a-and-its-derivatives-decrease-expression-of-chemerin-which-reverses-its-stimulatory-action-in-ovarian-cancer-cells
#16
Marta Hoffmann, Agnieszka Rak, Anna Ptak
Chemerin is an adipocyte-secreted protein that associates with obesity, inflammation, metabolic dysfunction, and carcinogenesis. Previous studies have shown human granulosa cells to produce bioactive chemerin and its receptor CMKLR1. In the present study, we demonstrated that the mRNA level of chemerin receptor is higher in a granulosa cell tumor cell line than in epithelial cancer cells, whereas chemerin expression and secretion were lower. Various exogenous factors, such as bisphenol A and its halogenated derivatives tetrabromobisphenol A and tetrachlorobisphenol A, can affect adipokine expression...
April 10, 2018: Toxicology Letters
https://www.readbyqxmd.com/read/29649030/resistin-is-a-novel-marker-for-postoperative-pain-intensity
#17
Jun Hozumi, Masahiko Sumitani, Daisuke Nishizawa, Makoto Nagashima, Kazutaka Ikeda, Hiroaki Abe, Ryoji Kato, Yoshiomi Kusakabe, Yoshitsugu Yamada
BACKGROUND: Pro- and anti-inflammatory cytokines (adipokines) associated with adipose tissue can modulate inflammatory processes and lead to systemic inflammatory conditions such as metabolic syndrome. In the present pilot study, we investigated 3 major adipokines (leptin, adiponectin, and resistin) and 2 nonspecific proinflammatory cytokines (tumor necrosis factor α and interleukin-6) with regard to their association with postoperative pain intensity. METHODS: We analyzed a total of 45 single-nucleotide polymorphisms of the adipokines in 57 patients with postlaparotomy pain...
April 11, 2018: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29644507/the-impact-of-obesity-on-breast-cancer
#18
REVIEW
Daniel F Argolo, Clifford A Hudis, Neil M Iyengar
The rates of obesity are increasing worldwide and this condition is now recognized as a leading preventable cause of cancer. Several diseases are directly related to obesity, including diabetes, hypertension, atherosclerosis, stroke, musculoskeletal disorders, and a diverse range of malignances-such as breast cancer. Obesity is associated with an increased risk of postmenopausal estrogen receptor-positive breast cancer and worse cancer-related outcomes for all breast tumor subtypes. Several mechanisms have been proposed to contribute to the obesity-cancer link, including high levels of circulating and local estrogens, altered amounts of adipokines (leptin and adiponectin), disrupted insulin/IGF signaling, modifications within the microbiome, and local and systemic effects of inflammation...
April 11, 2018: Current Oncology Reports
https://www.readbyqxmd.com/read/29642915/adipokine-rbp4-drives-ovarian-cancer-cell-migration
#19
Yanyan Wang, Yilin Wang, Zhenyu Zhang
BACKGROUND: Obesity has been linked to several types of cancers including ovarian cancer. Retinol binding protein 4 (RBP4) is an adipokine that drives the development of hyperinsulinemia and type II diabetes in obesity patients and animals. Previously, we have identified RBP4 as a serum marker for ovarian cancer. Here we further explored the consequence of RBP4 upregulation in ovarian cancer cells and its molecular mechanism. RESULTS: Our results show that RBP4 is overexpressed in ovarian cancer cells to the same extent as in adipose tissues...
April 11, 2018: Journal of Ovarian Research
https://www.readbyqxmd.com/read/29629347/%C3%AE-carotene-inhibits-activation-of-nf-%C3%AE%C2%BAb-activator-protein-1-and-stat3-and-regulates-abnormal-expression-of-some-adipokines-in-3t3-l1-adipocytes
#20
Soon Ok Cho, Min-Hyun Kim, Hyeyoung Kim
Background: Oxidative stress occurs in white adipose tissue and dysregulates the expression of adipokines secreted from adipocytes. Since adipokines influence inflammation, supplementation with antioxidants might be beneficial for preventing oxidative stress-mediated inflammation in adipocytes and inflammation-associated complications. β-Carotene is the most prominent antioxidant carotenoid and scavenges reactive oxygen species in various tissues. The purpose of this study was to determine whether β-carotene regulates the expression of adipokines, such as adiponectin, monocyte chemoattractant protein-1 (MCP-1), and regulated on activation, normal T cell expressed and secreted (RANTES) in 3T3-L1 adipocytes treated with glucose/glucose oxidase (G/GO)...
March 2018: Journal of Cancer Prevention
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