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Betatrophin

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https://www.readbyqxmd.com/read/28931172/the-correlation-between-circulating-betatrophin-and-insulin-resistance-in-general-population-a-meta-analysis
#1
Jinling Xu, Yanyan Lin, Hui Zhou, Linshuang Zhao, Guangda Xiang
Many inconsistent findings are reported on the correlation between circulating betatrophin and insulin resistance in the different population. The aim of this analysis was to explore the correlation between the level of betatrophin and insulin resistance in the general population. The databases of PubMed, EMBASE, and the Cochrane Library (inception to October 26, 2016) were searched without language restrictions for publications that reported studies on associations between betatrophin and insulin resistance in adults...
October 2017: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/28849903/chemical-protein-synthesis-with-the-%C3%AE-ketoacid-hydroxylamine-ligation
#2
Jeffrey W Bode
The coupling of an α-ketoacid and a hydroxylamine (KAHA ligation) affords amide bonds under aqueous, acidic conditions without the need for protecting groups or coupling agents. Translating this finding into a general approach to chemical protein synthesis required the identification of methods to incorporate the key functional groups into unprotected peptide segments-ideally using well-established Fmoc solid-phase peptide synthesis protocols. A decade of effort has now led to robust, convenient methods for preparing peptides bearing free or masked C-terminal α-ketoacids and N-terminal hydroxylamines...
August 29, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28811856/serum-betatrophin-levels-and-clinical-features-in-patients-with-poorly-controlled-type-2-diabetes
#3
Kohzo Takebayashi, Kenji Hara, Tomoko Terasawa, Rika Naruse, Mariko Suetsugu, Takafumi Tsuchiya, Toshihiko Inukai
BACKGROUND: Betatrophin is a hormone mainly secreted by the liver that influences lipid metabolisms. The main purposes of this study were to investigate the effect of canagliflozin (a sodium glucose transporter 2 inhibitor) on circulating betatrophin levels, and to investigate the correlation of various markers associated with glucose and lipid metabolisms with betatrophin in patients with poorly controlled type 2 diabetes. METHODS: Patients were randomly divided into a control group (n = 15) and a canagliflozin-treated group (n = 15)...
September 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/28722798/angptl8-betatrophin-role-in-diabetes-and-metabolic-diseases
#4
REVIEW
Mohamed Abu-Farha, Jehad Abubaker, Jaakko Tuomilehto
Diabetes is a major disease worldwide that is reaching epidemic stage. Its increased prevalence as well as its association with a high number of complications such as cardiovascular diseases, nephropathy and retinopathy makes it an important disease for investigation. ANGPTL8 is a recently identified hormone that has been associated with two functionally important processes in the development of type 2 diabetes, insulin resistance as well as lipid metabolism. Initial work has showed that ANGPTL8 was expressed in liver, white adipose and brown adipose tissues...
July 19, 2017: Diabetes/metabolism Research and Reviews
https://www.readbyqxmd.com/read/28717133/insulin-upregulates-betatrophin-expression-via-pi3k-akt-pathway
#5
Puhan Lu, Xi Chen, Zeqing Zhang, Jianhua Zhang, Yan Yang, Zhelong Liu, Junhui Xie, Shiying Shao, Xinrong Zhou, Shuhong Hu, Wentao He, Jiajun Zhao, Xuefeng Yu
Betatrophin is regarded as a liver-produced hormone induced by insulin resistance (IR). However, it remains largely unknown how IR regulates betatrophin expression. To study whether IR could regulate betatrophin expression and the corresponding molecular mechanisms, betatrophin levels were examined in 6 in vitro IR models which were established using human hepatocytes L02 with different agents, including tumor necrosis factor-α, interleukin-1β, dexamethasone, palmitate, high glucose and insulin and betatrophin levels were elevated only in the insulin group...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28702052/serum-concentrations-of-betatrophin-and-its-association-with-indirect-indices-of-insulin-resistance-and-beta-cell-function-in-women-with-polycystic-ovary-syndrome
#6
Agnieszka Adamska, Agnieszka Łebkowska, Małgorzata Jacewicz, Anna Krentowska, Justyna Hryniewicka, Sławomir Wołczyński, Maria Górska, Irina Kowalska
INTRODUCTION: Data underline the role of betatrophin in glucose homeostasis. Polycystic ovary syndrome (PCOS) is characterized by insulin resistance (IR). The aim of our study was to investigate the relationship of serum betatrophin concentrations with indirect indices of IR and insulin secretion in women with PCOS, compared to the control group. METHODS: The study group comprised 43 women with PCOS and 16 controls. IR was assessed by HOMA-IR and Matsuda index. Insulin secretion was evaluated with HOMA-B...
2017: International Journal of Endocrinology
https://www.readbyqxmd.com/read/28446155/erratum-to-higher-serum-betatrophin-level-in-type-2-diabetes-subjects-is-associated-with-urinary-albumin-excretion-and-renal-function
#7
Chang-Chiang Chen, Hendra Susanto, Wen-Han Chuang, Ta-Yu Liu, Arivajiagane Arundhathi, Chih-Hong Wang
No abstract text is available yet for this article.
April 26, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/28428942/follicular-fluid-cerebellin-and-betatrophin-regulate-the-metabolic-functions-of-growing-follicles-in-polycystic-ovary-syndrome
#8
Aynur Adeviye Ersahin, Mustafa Acet, Suat Suphan Ersahin, Tuba Acet, Meltem Yardim, Omer Kenanoglu, Suleyman Aydin
OBJECTIVE: The aim of this study was to assess the changes of follicular fluid (FF) and serum levels of cerebellin precursor protein 1 (cbln1) and betatrophin in patients with polycystic ovary syndrome (PCOS) undergoing in vitro fertilization/intracytoplasmic sperm injection (IVF/ICSI) with a gonadotropin-releasing hormone (GnRH) antagonist protocol. METHODS: Twenty infertile women with PCOS and 20 control women diagnosed as poor responders undergoing ovarian stimulation with a GnRH antagonist were included...
March 2017: Clinical and Experimental Reproductive Medicine
https://www.readbyqxmd.com/read/28351093/angptl8-betatrophin-is-expressed-in-visceral-adipose-tissue-and-relates-to-human-hepatic-steatosis-in-two-independent-clinical-collectives
#9
Christian von Loeffelholz, Andreas F H Pfeiffer, Johan F Lock, Steffi Lieske, Stephanie Döcke, Veronica Murahovschi, Jennifer Kriebel, Tonia de Las Heras Gala, Harald Grallert, Natalia Rudovich, Martin Stockmann, Joachim Spranger, Gerhard Jahreis, Stefan R Bornstein, George Lau, Aimin Xu, Jeanette Schulz-Menger, Louisa Exner, Sven Haufe, Jens Jordan, Stefan Engeli, Andreas L Birkenfeld
Angiopoietin-like protein 8 (ANGPTL8)/betatrophin expression in visceral adipose tissue and associations with circulating fatty acid profile have not yet been investigated.Forty subjects were included in a cross-sectional study, 57 in a dietary weight reduction intervention. Circulating Angiopoietin-like protein 8/betatrophin was measured in all subjects. Liver and adipose tissue were sampled and plasma fatty acids and tissue Angiopoietin-like protein 8/betatrophin expression were evaluated in the cross-sectional study...
May 2017: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/28351091/plasma-betatrophin-levels-of-subjects-classified-with-normal-impaired-and-diabetic-glucose-tolerance-and-subjects-with-impaired-fasting-glucose
#10
Sibel Ozyazgan, Burak Onal, Eda Merve Kurtulus, Hafize Uzun, Gokhan Akkan, Dildar Konukoglu
This study was aimed to investigate whether betatrophin shows glucose intolerance or not. To access the plasma betatrophin levels after basal and glucose load, groups were classified as normal glucose tolerance (NGT), impaired fasting glucose (IFG), impaired glucose tolerance (IGT), and diabetic glucose tolerance (DGT) according to WHO 2012 criteria. An oral glucose tolerance test was performed on age-matched subjects (n=220) with a body mass index (BMI)<27 kg/m(2). Subjects were categorized as normoglycemic (n=55), IFG (n=50), IGT (n=60), and DM (n=55) according to the WHO criteria...
March 28, 2017: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/28319674/assessment-of-circulating-betatrophin-concentrations-in-lean-glucose-tolerant-women-with-polycystic-ovary-syndrome
#11
Onur Erol, Mustafa Kemal Özel, Hamit Yaşar Ellidağ, Tayfun Toptaş, Aysel Uysal Derbent, Necat Yılmaz
The aims of the current study were to investigate the betatrophin levels in lean glucose-tolerant women with polycystic ovary syndrome (PCOS), and to explore the relationships between these levels and antropometric, hormonal and metabolic parameters. The study population consisted of 50 lean (body mass index [BMI] < 25 kg/m(2)) women diagnosed with PCOS using the Rotterdam criteria, and 60 age- and BMI-matched healthy controls without any features of clinical or biochemical hyperandrogenism. Before recruitment, glucose tolerance was evaluated in all of the subjects using the 2-h 75 g oral glucose-tolerance test, and only those exhibiting normal glucose tolerance were enrolled...
March 20, 2017: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28290605/transplantation-of-betatrophin-expressing-adipose-derived-mesenchymal-stem-cells-induces-%C3%AE-cell-proliferation-in-diabetic-mice
#12
Liang-Liang Sun, Tian-Jin Liu, Limei Li, Wei Tang, Jun-Jie Zou, Xiang-Fang Chen, Jiao-Yang Zheng, Bei-Ge Jiang, Yong-Quan Shi
Recent progress in regenerative medicine has suggested that mesenchymal stem cell (MSC)-based therapy is a novel potential cure for diabetes. Betatrophin is a newly identified hormone that can increase the production and expansion of insulin-secreting β-cells when administered to mice. In this study, we evaluated the effect of betatrophin overexpression by human adipose-derived MSCs (ADMSCs) by in vitro experiments, as well as following their transplantation into a mice with streptozotocin (STZ)-induced diabetes...
April 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28265415/metabolic-improvements-following-roux-en-y-surgery-assessed-by-solid-meal-test-in-subjects-with-short-duration-type-2-diabetes
#13
Sudha S Shankar, Lori A Mixson, Manu Chakravarthy, Robin Chisholm, Anthony J Acton, RoseMarie Jones, Samer G Mattar, Deborah L Miller, Lea Petry, Chan R Beals, S Aubrey Stoch, David E Kelley, Robert V Considine
BACKGROUND: Glucose homeostasis improves within days following Roux-en-Y gastric bypass (RYGB) surgery. The dynamic metabolic response to caloric intake following RYGB has been assessed using liquid mixed meal tolerance tests (MMTT). Few studies have evaluated the glycemic and hormonal response to a solid mixed meal in subjects with diabetes prior to, and within the first month following RYGB. METHODS: Seventeen women with type 2 diabetes of less than 5 years duration participated...
2017: BMC Obesity
https://www.readbyqxmd.com/read/28257453/renal-function-is-independently-associated-with-circulating-betatrophin
#14
Lukas Maurer, Franziska Schwarz, Antje Fischer-Rosinsky, Nina Schlueter, Sebastian Brachs, Matthias Möhlig, Andreas Pfeiffer, Knut Mai, Joachim Spranger, Thomas Bobbert
OBJECTIVE: Betatrophin has been identified as a marker linking liver with beta cell function and lipid metabolism in murine models. Until now, the regulation of circulating betatrophin in humans is not entirely clear. We here analyzed the relation of betatrophin levels to phenotypes of the metabolic syndrome and speculated that renal function might influence circulating betatrophin levels and explain age-dependent changes of betatrophin. SUBJECTS: We analyzed blood samples from 535 individuals participating in the Metabolic Syndrome Berlin Potsdam study...
2017: PloS One
https://www.readbyqxmd.com/read/28222635/serum-betatrophin-levels-are-increased-and-associated-with-insulin-resistance-in-patients-with-polycystic-ovary-syndrome
#15
Qinglan Qu, Dongmei Zhao, Fengrong Zhang, Hongchu Bao, Qiuhua Yang
Objective Betatrophin is a newly identified circulating protein that is significantly associated with type 2 diabetes mellitus (T2DM), adiposity, and metabolic syndrome. The aim of this study was to investigate whether betatrophin levels and polycystic ovary syndrome (PCOS) were associated. Methods Circulating betatrophin levels were measured in 162 patients with PCOS and 156 matched control females using specific enzyme-linked immunosorbent assay kits. Correlations between betatrophin levels and PCOS incidence as well as multiple key endocrine PCOS parameters were analyzed using multiple statistical methods...
February 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28196120/correction-circulating-betatrophin-levels-and-gestational-diabetes-mellitus-a-systematic-review-and-meta-analysis
#16
(no author information available yet)
[This corrects the article DOI: 10.1371/journal.pone.0169941.].
2017: PloS One
https://www.readbyqxmd.com/read/28177922/increased-circulating-full-length-betatrophin-levels-in-drug-na%C3%A3-ve-metabolic-syndrome
#17
Dan Liu, Sheyu Li, He He, Chuan Yu, Xiaodan Li, Libo Liang, Yi Chen, Jianwei Li, Jianshu Li, Xin Sun, Haoming Tian, Zhenmei An
Betatrophin is a newly identified circulating adipokine playing a role in the regulation of glucose homeostasis and lipid metabolism. But its role in metabolic syndrome (MetS) remains unknown. Therefore, we aimed to compare the circulating betatrophin concentrations between patients with MetS and healthy controls. We recruited 47 patients with MetS and 47 age and sex matched healthy controls. Anthropometric and biochemical measurements were performed, and serum betatrophin levels were detected by ELISA. Full-length betatrophin levels in patients with MetS were significantly higher than those in controls (694...
March 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28125672/relationship-of-serum-betatrophin-with-nonalcoholic-fatty-liver-in-a-chinese-population
#18
Wen Hu, Xiaojuan Shao, Dianxuan Guo, Hairong Hao, Yong Zhang, Mingfeng Xia, Yingyun Gong, Hongwen Zhou, Yunqing Fan, Weinan Yu
OBJECTIVE: This study aimed to investigate the association of serum betatrophin with the status and progression of nonalcoholic fatty liver disease (NAFLD). METHODS: A total of 249 subjects who received ultrasonic examination of liver fat content (LFC) were recruited. Anthropometric and biochemical examinations were performed. Serum betatrophin was measured by ELISA. RESULTS: Compared with control group, serum betatrophin significantly increased in NAFLD group (P < 0...
2017: PloS One
https://www.readbyqxmd.com/read/28081192/circulating-betatrophin-levels-and-gestational-diabetes-mellitus-a-systematic-review-and-meta-analysis
#19
REVIEW
Fei-Juan Kong, Lei-Lei Ma, Ge Li, Yi-Xin Chen, Jia-Qiang Zhou
OBJECTIVE: The association between circulating betatrophin levels and gestational diabetes mellitus (GDM) is controversial. The aim of our study was to systematically review available literature linking betatrophin to GDM for a comprehensive understanding of the relationship between circulating betatrophin levels and GDM in human. METHODS: PubMed, The Cochrane Library, Medline and CNKI were searched for studies published up to August 2016. Manual searches of references of the relevant original studies were conducted...
2017: PloS One
https://www.readbyqxmd.com/read/28074664/recent-advances-in-molecular-biomarkers-for-diabetes-mellitus-a-systematic-review
#20
Ty Lees, Najah Nassif, Ann Simpson, Fatima Shad-Kaneez, Rosetta Martiniello-Wilks, Yiguang Lin, Allan Jones, Xianqin Qu, Sara Lal
CONTEXT: Diabetes is a growing global metabolic epidemic. Current research is focussing on exploring how the biological processes and clinical outcomes of diabetes are related and developing novel biomarkers to measure these relationships, as this can subsequently improve diagnostic, therapeutic and management capacity. OBJECTIVE: The objective of this study is to identify the most recent advances in molecular biomarkers of diabetes and directions that warrant further research...
January 24, 2017: Biomarkers: Biochemical Indicators of Exposure, Response, and Susceptibility to Chemicals
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