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https://www.readbyqxmd.com/read/27899942/adiponectin-receptor-1-and-small-ubiquitin-like-modifier-4-polymorphisms-are-associated-with-risk-of-coronary-artery-disease-without-diabetes
#1
Hong Li, Ze Yang, Lian-Mei Pu, Xiang Li, Yang Ruan, Fan Yang, Shuai Meng, Duo Yang, Wei Yao, Hao Fu, Feng Zhang, Ze-Ning Jin
BACKGROUND: The genes encoding adiponectin receptor 1 (ADIPOR1) and small ubiquitin-like modifier 4 (SUMO4) have been linked to anti-atherogenic effects, but little is known about whether polymorphisms in the two genes, acting separately or interacting, affect risk of coronary artery disease (CAD) without diabetes. METHODS: We genotyped 200 CAD patients without diabetes and 200 controls without CAD or diabetes at three single-nucleotide polymorphisms (SNPs) in ADIPOR1 and one SNP in SUMO4, which were chosen based on previous studies...
September 2016: Journal of Geriatric Cardiology: JGC
https://www.readbyqxmd.com/read/27897419/exercise-restores-muscle-stem-cell-mobilization-regenerative-capacity-and-muscle-metabolic-alterations-via-adiponectin-adipor1-activation-in-samp10-mice
#2
Aiko Inoue, Xian Wu Cheng, Zhe Huang, Lina Hu, Ryosuke Kikuchi, Haiying Jiang, Limei Piao, Takeshi Sasaki, Kohji Itakura, Hongxian Wu, Guangxian Zhao, Yanna Lei, Guang Yang, Enbo Zhu, Xiang Li, Kohji Sato, Teruhiko Koike, Masafumi Kuzuya
BACKGROUND: Exercise train (ET) stimulates muscle response in pathological conditions, including aging. The molecular mechanisms by which exercise improves impaired adiponectin/adiponectin receptor 1 (AdipoR1)-related muscle actions associated with aging are poorly understood. Here we observed that in a senescence-accelerated mouse prone 10 (SAMP10) model, long-term ET modulated muscle-regenerative actions. METHODS: 25-week-old male SAMP10 mice were randomly assigned to the control and the ET (45 min/time, 3/week) groups for 4 months...
November 29, 2016: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/27896586/effect-of-berberine-on-the-ratio-of-high-molecular-weight-adiponectin-to-total-adiponectin-and-adiponectin-receptors-expressions-in-high-fat-diet-fed-rats
#3
Yue-Yue Wu, Ying Zha, Jun Liu, Fang Wang, Jiong Xu, Zao-Ping Chen, He-Yuan Ding, Li Sheng, Xiao-Jie Han
OBJECTIVE: To assess the effects of berberine (BBR) on high-molecular weight (HMW) adiponectin and adiponectin receptors (adipoR1/adipoR2) expressions in high-fat (HF) diet fed rats. METHODS: Forty Wistar male rats were randomly assigned into a normal diet fed group and three HF diet (fat for 45% calories) fed groups (n=10 for each group). All rats underwent 12 weeks of feeding. After 4 weeks feeding, rats in the two of three HF diet fed groups were treated with 150 mg·kg(-1)·day(-1) BBR (HF+LBBR group) and 380 mg·kg(-1)·day(-1) BBR (HF+HBBR group) by gavage once a day respectively for the next 8 weeks while the rats in other groups treated with vehicle (NF+Veh and HF+Veh)...
November 17, 2016: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/27890887/royal-jelly-improves-hyperglycemia-in-obese-diabetic-kk-ay-mice
#4
Mei Yoshida, Kaori Hayashi, Risa Watadani, Yoshiyasu Okano, Keiya Tanimura, Jun Kotoh, Daiki Sasaki, Kozo Matsumoto, Akihiko Maeda
The study examined whether royal jelly (RJ) can prevent obesity and ameliorate hyperglycemia in type 2 diabetes. This study utilized obese/diabetic KK-Ay mice. RJ (10 mg/kg) was administered by oral gavage. Body weight, plasma glucose and insulin levels were measured. mRNA and protein levels were determined using quantitative reverse transcription polymerase chain reaction and western blotting, respectively. Four weeks of RJ administration improved hyperglycemia and partially suppressed body weight gain, although the latter effect did not reach statistical significance...
November 26, 2016: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/27884163/chronic-adiponectin-deficiency-leads-to-alzheimer-s-disease-like-cognitive-impairments-and-pathologies-through-ampk-inactivation-and-cerebral-insulin-resistance-in-aged-mice
#5
Roy Chun-Laam Ng, On-Yin Cheng, Min Jian, Jason Shing-Cheong Kwan, Philip Wing-Lok Ho, Kenneth King-Yip Cheng, Patrick Ka Kit Yeung, Lena Lei Zhou, Ruby Lai-Chong Hoo, Sookja Kim Chung, Aimin Xu, Karen Siu-Ling Lam, Koon Ho Chan
BACKGROUND: Insulin resistance is the major pathogenesis underlying type 2 diabetes mellitus (T2DM) and these patients have doubled risk of Alzheimer's disease (AD). Increasing evidence suggests that insulin resistance plays an important role in AD pathogenesis, possibly due to abnormal GSK3β activation, causing intra- and extracellular amyloid-beta (Aβ) accumulation. Adiponectin (APN) is an adipokine with insulin-sensitizing and anti-inflammatory effects. Reduced circulatory APN level is associated with insulin resistance and T2DM...
November 25, 2016: Molecular Neurodegeneration
https://www.readbyqxmd.com/read/27882945/adiponectin-reduces-er-stress-induced-apoptosis-through-ppar%C3%AE-transcriptional-regulation-of-atf2-in-mouse-adipose
#6
Zhenjiang Liu, Lu Gan, Tianjiao Wu, Fei Feng, Dan Luo, Huihui Gu, Shimin Liu, Chao Sun
Adiponectin is a cytokine produced predominantly by adipose tissue and correlates with glucose and lipid homeostasis. However, the effects of adiponectin on endoplasmic reticulum (ER) stress and apoptosis of adipose tissue remain elusive. In this study, we found that tunicamycin-induced ER stress increased serum free fatty acid (FFA) and impaired glucose tolerance, elevated the mRNA levels of GRP78, Chop, ATF2 and caspase 3, but reduced adiponectin mRNA level in white adipose tissue. Moreover, ER stress-triggered adipocyte apoptosis by increasing cellular FFA level and Ca(2+) level...
November 24, 2016: Cell Death & Disease
https://www.readbyqxmd.com/read/27876065/expression-of-adiponectin-receptors-in-human-and-rat-intervertebral-disc-cells-and-changes-in-receptor-expression-during-disc-degeneration-using-a-rat-tail-temporary-static-compression-model
#7
Yoshiki Terashima, Kenichiro Kakutani, Takashi Yurube, Toru Takada, Koichiro Maeno, Hiroaki Hirata, Shingo Miyazaki, Masaaki Ito, Yuji Kakiuchi, Yoshiki Takeoka, Ryosuke Kuroda, Kotaro Nishida
BACKGROUND: Adipose tissue is a large endocrine organ known to secret adiponectin, which has anti-diabetic, anti-atherogenic, and anti-inflammatory properties. Adiponectin is widely involved in systemic disease, diabetes mellitus, and cardiac infraction. This study aimed to investigate the involvement of adiponectin in intervertebral disc (IVD) degeneration. METHODS: Adipose and IVD tissues were obtained from human patients undergoing surgery (n = 4) and from skeletally mature Sprague-Dawley rats (n = 21)...
November 22, 2016: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/27822289/interactions-of-exercise-training-and-high-fat-diet-on-adiponectin-forms-and-muscle-receptors-in-mice
#8
Mélany Pierard, Stéphanie Conotte, Alexandra Tassin, Sébastien Boutry, Pierrick Uzureau, Karim Zouaoui Boudjeltia, Alexandre Legrand
BACKGROUND: Metabolic syndrome (MetS) is characterized by systemic disturbances that increase cardiovascular risk. Adiponectin (Ad) exhibits a cardioprotective function because of its anti-inflammatory and anti-atherosclerotic properties. In the bloodstream, this adipocytokine circulates on multimers (Admer), among which high molecular weight (HMW) are the most active forms. Because alterations of Ad plasmatic levels, Admer distribution and receptor (AdipoR) expression have been described in murine models and obese patients, strategies that aim to enhance Ad production or its effect on target tissues are the subject of intense investigations...
2016: Nutrition & Metabolism
https://www.readbyqxmd.com/read/27779475/maternal-high-fat-diet-during-pregnancy-and-lactation-had-gender-difference-effect-on-adiponectin-in-rat-offspring
#9
E Gregoraszczuk, M Slupecka, J Wolinski, A Hejmej, B Bilinska, E Fiedor, N Piwnicka, A Rak
This study investigated the effect of a high-fat (HF) diet on plasma adiponectin and steroid hormones levels, and the protein expression of adiponectin and its receptors, in the gonads and gonadal (periovarian and epididymal) white adipose tissue (WAT) of dams and their offspring. Female Wistar rats were fed a HF diet (30% fat) or a standard breeding (BD) diet (5% fat) during pregnancy and lactation. At 21 days of lactation, mothers and both sexes of prepubertal offspring were killed by decapitation. Plasma adiponectin, testosterone (T) and oestradiol (E2) levels were analyzed by ELISA...
August 2016: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/27771090/effects-of-nutrient-intake-level-on-mammary-parenchyma-growth-and-gene-expression-in-crossbred-holstein-%C3%A3-gyr-prepubertal-heifers
#10
M M D C A Weller, Ronan L Albino, M I Marcondes, W Silva, K M Daniels, M M Campos, M S Duarte, M L Mescouto, F F Silva, S E F Guimarães
This study investigated the effects of increased nutrient intake levels on prepubertal mammary parenchyma development in crossbreed (Holstein × Gyr) dairy heifers. Eighteen heifers age 3 to 4 mo were fed 1 of 3 nutrient intake levels (n = 6 per treatment) designed to sustain an average daily gain of 0.0 kg/d (maintenance, MA), 0.5 kg/d (low gain, LG), or 1.0 kg/d (high gain, HG). Serum blood samples collected on d 42 and 84 after a 12-h fast were analyzed for triglycerides, leptin, insulin, and insulin-like growth factor 1 (IGF-1)...
October 19, 2016: Journal of Dairy Science
https://www.readbyqxmd.com/read/27768592/genetic-polymorphisms-in-leptin-adiponectin-and-their-receptors-affect-risk-and-aggressiveness-of-prostate-cancer-evidence-from-a-meta-analysis-and-pooled-review
#11
Meng-Bo Hu, Hua Xu, Ji-Meng Hu, Wen-Hui Zhu, Tian Yang, Qiang Ding
Leptin and adiponectin signaling was associated with development and progression of various cancers. The present study aimed to clarify the role of genetic variants in leptin, adiponectin and their receptors in prostate cancer. After comprehensive search and manuscript scanning, a total of 49 genetic variants were enrolled and examined for their relations to cancer risk and aggressiveness. In the meta-analysis, LEP rs7799039 (allele contrast: OR 1.133, 95%CI 1.024-1.254), ADIPOQ rs2241766 (allele contrast: OR 1...
October 19, 2016: Oncotarget
https://www.readbyqxmd.com/read/27763537/the-effect-of-vegan-protein-based-diets-on-metabolic-parameters-expressions-of-adiponectin-and-its-receptors-in-wistar-rats
#12
Jie-Hua Chen, Jia Song, Yan Chen, Qiang Ding, Anfang Peng, Limei Mao
Vegan protein-based diet has attracted increasing interest in the prevention of metabolic syndrome (MetS). Meanwhile, adiponectin has become a highly potential molecular target in the prevention of MetS. Our study will identify a potential vegan protein diet for the prevention of MetS using rat models. Thirty-six Wistar rats were randomly assigned into three groups and given diets containing one of the following proteins for 12 weeks: casein (CAS, control diet), soy protein (SOY), and gluten-soy mixed protein (GSM)...
October 18, 2016: Nutrients
https://www.readbyqxmd.com/read/27703271/pioglitazone-ameliorates-smooth-muscle-cell-proliferation-in-cuff-induced-neointimal-formation-by-both-adiponectin-dependent-and-independent-pathways
#13
Tetsuya Kubota, Naoto Kubota, Hiroyuki Sato, Mariko Inoue, Hiroki Kumagai, Tomokatsu Iwamura, Iseki Takamoto, Tsuneo Kobayashi, Masao Moroi, Yasuo Terauchi, Kazuyuki Tobe, Kohjiro Ueki, Takashi Kadowaki
The aim of this study is to elucidate to what degree adiponectin is involved in TZD-mediated amelioration of neointimal formation. We investigated the effect of 3- or 8-weeks' pioglitazone on cuff-induced neointimal formation in adiponectin-deficient (APN-KO) and wild-type (WT) mice. Pioglitazone for 3 weeks reduced neointimal formation in the WT mice with upregulation of the plasma adiponectin levels, but failed to reduce neointimal formation in the APN-KO mice, suggesting that pioglitazone suppressed neointimal formation by adiponectin-dependent mechanisms...
October 5, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27695486/expression-of-candidate-genes-associated-with-obesity-in-peripheral-white-blood-cells-of-mexican-children
#14
Marcela Ulloa-Martínez, Ana I Burguete-García, Selvasankar Murugesan, Carlos Hoyo-Vadillo, Miguel Cruz-Lopez, Jaime García-Mena
INTRODUCTION: Obesity is a chronic, complex, and multifactorial disease, characterized by excess body fat. Diverse studies of the human genome have led to the identification of susceptibility genes that contribute to obesity. However, relatively few studies have addressed specifically the association between the level of expression of these genes and obesity. MATERIAL AND METHODS: We studied 160 healthy and obese unrelated Mexican children aged 6 to 14 years. We measured the transcriptional expression of 20 genes associated with obesity, in addition to the biochemical parameters, in peripheral white blood cells...
October 1, 2016: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/27671740/revisiting-the-membrane-centric-view-of-diabetes
#15
Marc Pilon
Fundamental questions remain unresolved in diabetes: What is the actual mechanism of glucose toxicity? Why is there insulin resistance in type 2 diabetes? Why do diets rich in sugars or saturated fatty acids increase the risk of developing diabetes? Studying the C. elegans homologs of the anti-diabetic adiponectin receptors (AdipoR1 and AdipoR2) has led us to exciting new discoveries and to revisit what may be termed "The Membrane Theory of Diabetes". We hypothesize that excess saturated fatty acids (obtained through a diet rich in saturated fats or through conversion of sugars into saturated fats via lipogenesis) leads to rigid cellular membranes that in turn impair insulin signalling, glucose uptake and blood circulation, thus creating a vicious cycle that contributes to the development of overt type 2 diabetes...
September 27, 2016: Lipids in Health and Disease
https://www.readbyqxmd.com/read/27644646/association-of-igfbp-6-expression-with-metabolic-syndrome-and-adiponectin-and-igf-ir-receptor-levels-in-colorectal-cancer
#16
Natalia V Yunusova, Liudmila V Spirina, Alena E Frolova, Sergey G Afanas'ev, Elena S Kolegova, Irina V Kondakova
PURPOSE: To assess IGFBP-6 expression in relation with the presence of the metabolic syndrome, adiponectin receptors (AdipoR1 and AdipoR2) and IGF-IR levels in colorectal adenocarcinoma cases. MATERIALS AND METHODS: IGFBP-6 mRNA and protein levels were analyzed using real-time quantitative PCR and Western blotting in 46 patients. ELISA and ow cytometry were used for evaluation of AdipoR1, AdipoR2 and IGF-IR. RESULTS: The results showed that IGFBP-6 mRNA expression and the IGFBP-6 content were higher in tumor tissue samples of colorectal cancer patients with and without the metabolic syndrome...
2016: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/27617220/association-of-adiponectin-receptor-1-gene-%C3%A2-106-c%C3%A2-%C3%A2-t-variant-with-susceptibility-to-colorectal-cancer
#17
Touraj Mahmoudi, Khatoon Karimi, Negar Karimi, Hamid Farahani, Hossein Nobakht, Reza Dabiri, Mohsen Vahedi, Mohammad Reza Zali
BACKGROUND: Colorectal cancer (CRC) is the fourth leading cause of cancer-related death around the world and accumulated evidence indicates the association between CRC and obesity and insulin resistance. OBJECTIVES: Regarding the role of adiponectin in obesity and insulin resistance, we explored whether genetic variants in adiponectin (ADIPOQ) and adiponectin receptor 1 (ADIPOR1) are associated with CRC risk. MATERIALS AND METHODS: ADIPOQ (rs2241766) and ADIPOR1 (rs2275738) gene variants were genotyped in 261 cases with CRC and 339 controls using PCR-RFLP method...
September 2016: Meta Gene
https://www.readbyqxmd.com/read/27597432/a-potential-determinant-role-of-adiponectin-and-receptors-for-the-early-embryo-development-in-pcos-patients-with-obesity-hinted-by-quantitative-profiling
#18
Ning Zhang, Cuifang Hao, Xiaoyan Liu, Shouxin Zhang, Fengrong Zhang, Lili Zhuang, Dongmei Zhao
OBJECTIVE: To identify the quantitative profiling of adiponectin and its receptors (AdipoR1, AdipoR2, and T-cadherin) in cumulus cells (CCs) and to evaluate their roles in the early embryo development of polycystic ovary syndrome (PCOS) patients, in part, with obesity. METHODS: Fifty-five subjects were divided into two groups according to the body mass index. Oocytes were further inseminated and only mature and normal fertilized oocytes (2PN) were included in this research...
September 5, 2016: Gynecological Endocrinology
https://www.readbyqxmd.com/read/27588936/marked-elevation-of-serum-m2bp-adiponectin-complex-in-men-with-coronary-artery-disease
#19
Ryu Niinaga, Hiroyasu Yamamoto, Manami Yoshii, Hiromi Uekita, Noriko Yamane, Ikoi Kochi, Akane Matsumoto, Tetsuro Matsuoka, Shinji Kihara
BACKGROUND AND AIMS: Adiponectin (APN) is an adipocyte-derived bioactive molecule with anti-diabetic and anti-atherogenic properties. Although the anti-diabetic effects of APN are mediated by AdipoR1 and AdipoR2, the anti-atherogenic mechanisms of APN remain unclear. The aim of this study was to determine the serum molecule inhibiting APN functions. METHODS AND RESULTS: By immunoprecipitation with an anti-APN antibody and mass spectrometry, we identified Mac-2 binding protein (M2BP) as a novel serum APN-binding protein...
October 2016: Atherosclerosis
https://www.readbyqxmd.com/read/27565410/infliximab-therapy-restores-adiponectin-expression-in-perivascular-adipose-tissue-and-improves-endothelial-nitric-oxide-mediated-vasodilation-in-mice-with-type-1-diabetes
#20
Carmela Nacci, Valentina Leo, Leonarda De Benedictis, Maria A Potenza, Luca Sgarra, Maria A De Salvia, Michael J Quon, Monica Montagnani
Increased TNFα-mediated JNK signaling in the perivascular adipose tissue (PVAT) may contribute to the pathogenesis of vascular complications in T1DM by reducing adiponectin (Ad) synthesis and therefore impairing Ad-mediated activity in the contiguous blood vessel system. We evaluated whether in vivo treatment with the TNFα blocking antibody infliximab normalized expression of Ad and Ad receptors in various fat depots, and whether this effect correlated with improved endothelial activity and vasodilator function in streptozotocin (STZ)-induced diabetic mice...
August 23, 2016: Vascular Pharmacology
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