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https://www.readbyqxmd.com/read/28230926/association-between-high-expression-of-phosphorylated-akt-and-mammalian-target-of-rapamycin-and-improved-survival-in-salivary-gland-adenoid-cystic-carcinoma
#1
Dai-Qiao Ouyang, Li-Zhong Liang, Zun-Fu Ke, Guang-Sen Zheng, De-Sheng Weng, Wei-Fa Yang, Yu-Xiong Su, Gui-Qing Liao
BACKGROUND: Previous genomic studies revealed phosphotidylinositol-3-kinase (PI3K)/Akt pathway mutation in human salivary gland adenoid cystic carcinoma (ACC). No validation of its prognostic value has been reported. METHODS: P-Akt, pan-Akt, phosphorylated-mammalian target of rapamycin (p-mTOR), PI3K, and insulin-like growth factor-1 receptor beta (IGF-1Rβ) were detected on 120 salivary gland ACC/adjacent salivary gland pairs immunohistochemically and were correlated with clinicopathological data...
February 23, 2017: Head & Neck
https://www.readbyqxmd.com/read/28230772/silencing-of-two-insulin-receptor-genes-disrupts-nymph-adult-transition-of-alate-brown-citrus-aphid
#2
Bi-Yue Ding, Feng Shang, Qiang Zhang, Ying Xiong, Qun Yang, Jin-Zhi Niu, Guy Smagghe, Jin-Jun Wang
Insulin receptors play key roles in growth, development, and polymorphism in insects. Here, we report two insulin receptor genes (AcInR1 and AcInR2) from the brown citrus aphid, Aphis (Toxoptera) citricidus. Transcriptional analyses showed that AcInR1 increased during the nymph-adult transition in alate aphids, while AcInR2 had the highest expression level in second instar nymphs. AcInR1 is important in aphid development from fourth instar nymphs to adults as verified by dsRNA feeding mediated RNAi. The silencing of AcInR1 or/and AcInR2 produced a variety of phenotypes including adults with normal wings, malformed wings, under-developed wings, and aphids failing to develop beyond the nymphal stages...
February 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28230449/real-world-glycemic-control-from-glp-1ra-therapy-with-and-without-concurrent-insulin-in-patients-with-type-2-diabetes
#3
Mukul Singhal, Sudhir Unni, Marisa Schauerhamer, Hiep Nguyen, Jeff Hurd, Carrie McAdam-Marx
BACKGROUND: Glucagon-like peptide 1 receptor agonists (GLP-1RAs) are recommended as add-on therapy in patients with uncontrolled type 2 diabetes (T2D), with no specific guidance as to timing versus insulin. Furthermore, real-world data assessing GLP-1RA outcomes with or without concurrent insulin therapy are lacking. OBJECTIVE: To identify glycemic response with GLP-1RAs by insulin use in patients with T2D at 1-year follow-up to inform decisions regarding GLP-1RA use with or without insulin...
March 2017: Journal of Managed Care & Specialty Pharmacy
https://www.readbyqxmd.com/read/28230360/capsaicin-reduces-blood-glucose-by-increasing-insulin-levels-and-glycogen-content-better-than-capsiate-in-streptozotocin-induced-diabetic-rats
#4
Shiqi Zhang, Xiaohan Ma, Zhang Lei, Hui Sun, Xiong Liu
Chili peppers exhibit anti-obesity, anti-cancer, anti-diabetic, and pain- and itchiness-relieving effects on animals and humans; these effects are due to capsaicin, which is the main pungent and biologically active component of pepper. Capsiate, a nonpungent capsaicin analogue and is similar to capsaicin in terms of structure and biological activity. In this study, we investigated whether capsaicin and capsiate exhibit the same hypoglycemic effects on rats with type 1 diabetes (T1D). Experimental rats were categorized into four groups: control, model, capsaicin, and capsiate groups...
February 23, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28229385/early-pregnancy-biochemical-predictors-of-gestational-diabetes-mellitus
#5
REVIEW
Camille E Powe
PURPOSE OF REVIEW: Universal oral glucose tolerance-based screening is employed to identify pregnant women with gestational diabetes mellitus (GDM), as treatment of this condition decreases the risk of associated complications. A simple and accurate blood test which identifies women at low or high risk for GDM in the first trimester would have the potential to decrease costs and improve outcomes through prevention or treatment. This review summarizes published data on early pregnancy biomarkers which have been tested as predictors of GDM...
February 2017: Current Diabetes Reports
https://www.readbyqxmd.com/read/28229243/correlation-of-insulin-resistance-and-motor-function-in-spinal-and-bulbar-muscular-atrophy
#6
Hideaki Nakatsuji, Amane Araki, Atsushi Hashizume, Yasuhiro Hijikata, Shinichiro Yamada, Tomonori Inagaki, Keisuke Suzuki, Haruhiko Banno, Noriaki Suga, Yohei Okada, Manabu Ohyama, Tohru Nakagawa, Ken Kishida, Tohru Funahashi, Iichiro Shimomura, Hideyuki Okano, Masahisa Katsuno, Gen Sobue
This study aimed to evaluate various metabolic parameters in patients with spinal and bulbar muscular atrophy (SBMA), to investigate the association between those indices and disease severity, and to explore the underlying molecular pathogenesis. We compared the degree of obesity, metabolic parameters, and blood pressure in 55 genetically confirmed SBMA patients against those in 483 age- and sex-matched healthy control. In SBMA patients, we investigated the correlation between these factors and motor functional indices...
February 22, 2017: Journal of Neurology
https://www.readbyqxmd.com/read/28228611/anti-diabetic-action-of-all-trans-retinoic-acid-and-the-orphan-g-protein-coupled-receptor-gprc5c-in-pancreatic-%C3%AE-cells
#7
Stefan Amisten, Israa Mohammad Al-Amily, Arvind Soni, Ross Hawkes, Patricio Atanes, Shanta Jean Persaud, Patrik Rorsman, Albert Salehi
Pancreatic islets express high levels of the orphan G-protein coupled receptor C5C (GPRC5C), the function of which remains to be established. Here we have examined the role of GPRC5C in the regulation of insulin secretion and β-cell survival and proliferation using human and mouse pancreatic islets. The expression of GPRC5C was analysed by RNA-sequencing, qPCR, western blotting and confocal microscopy. Insulin secretion and cell viability were determined by RIA and MTS assays, respectively. GPRC5C mRNA expression and protein level were reduced in the islets from type-2 diabetic donors...
February 22, 2017: Endocrine Journal
https://www.readbyqxmd.com/read/28226203/characteristic-changes-in-decidual-gene-expression-signature-in-spontaneous-term-parturition
#8
Haidy El-Azzamy, Andrea Balogh, Roberto Romero, Yi Xu, Christopher LaJeunesse, Olesya Plazyo, Zhonghui Xu, Theodore G Price, Zhong Dong, Adi L Tarca, Zoltan Papp, Sonia S Hassan, Tinnakorn Chaiworapongsa, Chong Jai Kim, Nardhy Gomez-Lopez, Nandor Gabor Than
Background: The decidua has been implicated in the "terminal pathway" of human term parturition, which is characterized by the activation of pro-inflammatory pathways in gestational tissues. However, the transcriptomic changes in the decidua leading to terminal pathway activation have not been systematically explored. This study aimed to compare the decidual expression of developmental signaling and inflammation-related genes before and after spontaneous term labor in order to reveal their involvement in this process...
February 22, 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/28225806/capsaicin-reduces-alzheimer-associated-tau-changes-in-the-hippocampus-of-type-2-diabetes-rats
#9
Weijie Xu, Juanhong Liu, Delin Ma, Gang Yuan, Yan Lu, Yan Yang
Type 2 diabetes (T2D) is a high-risk factor for Alzheimer's disease (AD) due to impaired insulin signaling pathway in brain. Capsaicin is a specific transient receptor potential vanilloid 1 (TRPV1) agonist which was proved to ameliorate insulin resistance. In this study, we investigated whether dietary capsaicin could reduce the risk of AD in T2D. T2D rats were fed with capsaicin-containing high fat (HF) diet for 10 consecutive days (T2D+CAP). Pair-fed T2D rats (T2D+PF) fed with the HF-diet of average dose of T2D+CAP group were included to control for the effects of reduced food intake and body weight...
2017: PloS One
https://www.readbyqxmd.com/read/28225792/the-adamts9-gene-is-associated-with-cognitive-aging-in-the-elderly-in-a-taiwanese-population
#10
Eugene Lin, Shih-Jen Tsai, Po-Hsiu Kuo, Yu-Li Liu, Albert C Yang, Chung-Feng Kao, Cheng-Hung Yang
Evidence indicates that the pathophysiologic mechanisms associated with insulin resistance may contribute to cognitive aging and Alzheimer's diseases. In this study, we hypothesize that single nucleotide polymorphisms (SNPs) within insulin resistance-associated genes, such as the ADAM metallopeptidase with thrombospondin type 1 motif 9 (ADAMTS9), glucokinase regulator (GCKR), and peroxisome proliferator activated receptor gamma (PPARG) genes, may be linked with cognitive aging independently and/or through complex interactions in an older Taiwanese population...
2017: PloS One
https://www.readbyqxmd.com/read/28225186/randomised-clinical-trial-the-efficacy-and-safety-of-oltipraz-a-liver-x-receptor-alpha-inhibitory-dithiolethione-in-patients-with-non-alcoholic-fatty-liver-disease
#11
W Kim, B G Kim, J S Lee, C K Lee, J E Yeon, M S Chang, J H Kim, H Kim, S Yi, J Lee, J-Y Cho, S G Kim, J-H Lee, Y J Kim
BACKGROUND: Oltipraz is a synthetic dithiolethione with an antisteatotic effect by inhibiting the activity of liver X receptor alpha (LXR-α). Recent studies demonstrated the disruptive role of oltipraz on LXR-α-dependent lipogenesis in hepatocytes and a high-fat diet mouse model. AIM: To evaluate the efficacy and safety of oltipraz for reducing liver fat in subjects with non-alcoholic fatty liver disease (NAFLD). METHODS: We performed a multicentre, double-blind, placebo-controlled, phase II study...
February 22, 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28223344/an-intestinal-farnesoid-x-receptor-ceramide-signaling-axis-modulates-hepatic-gluconeogenesis-in-mice
#12
Cen Xie, Changtao Jiang, Jingmin Shi, Xiaoxia Gao, Dongxue Sun, Lulu Sun, Ting Wang, Shogo Takahashi, Mallappa Anitha, Kristopher W Krausz, Andrew D Patterson, Frank J Gonzalez
Increasing evidence supports the view that intestinal farnesoid X receptor (FXR) is involved in glucose tolerance and that FXR signaling can be profoundly impacted by the gut microbiota. Selective manipulation of the gut microbiota-FXR signaling axis was reported to significantly impact glucose intolerance, but the precise molecular mechanism remains largely unknown. Here, caffeic acid phenethyl ester (CAPE), an over-the-counter dietary supplement and an inhibitor of bacterial bile salt hydrolase, increased levels of intestinal tauro-β-muricholic acid, which selectively suppresses intestinal FXR signaling...
March 2017: Diabetes
https://www.readbyqxmd.com/read/28223295/a-model-of-chronic-diabetic-polyneuropathy-benefits-from-intranasal-insulin-are-modified-by-sex-and-rage-deletion
#13
Cristiane L de la Hoz, Chu Cheng, Paul Fernyhough, Douglas W Zochodne
Human diabetic polyneuropathy (DPN) is a progressive complication of chronic diabetes mellitus. Preliminary evidence has suggested that intranasal insulin, in doses insufficient to alter hyperglycemia, suppresses the development of DPN. In this work we confirm this finding, but demonstrate that its impact is modified by sex and deletion of RAGE, the receptor for advanced glycosylation endproducts. We serially evaluated experimental DPN in male and female wild type mice and male RAGE null (RN) mice, each with nondiabetic controls, during 16 weeks of diabetes, the final 8 weeks including groups given intranasal insulin...
February 21, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28223169/igf1-igf1r-stat3-signaling-inducible-ifitm2-promotes-gastric-cancer-growth-and-metastasis
#14
Li Xu, Rui Zhou, Lezhong Yuan, Shiqing Wang, Xiaoyin Li, Huanrong Ma, Minyu Zhou, Changqie Pan, Jingwen Zhang, Na Huang, Min Shi, Jianping Bin, Yulin Liao, Wangjun Liao
Interferon-induced transmembrane proteins (IFITMs) are expressed in some types of cancer. However, their precise roles in tumor progression remain unclear. The present study investigated the function of IFITM2 in gastric cancer (GC) progression. A retrospective analysis of a public database and 167 GC patients revealed that IFITM2 expression was upregulated in gastric tumor samples, which was positively correlated with disease progression, more frequent postoperative recurrence, and higher mortality rate. IFITM2 knockdown decreased GC cell proliferation, migration, invasion, and epithelial-to-mesenchymal transition in vitro...
February 18, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28223018/cerebral-ischemia-induced-elevation-of-hepatic-inflammatory-factors-accompanied-by-glucose-intolerance-suppresses-hypothalamic-orexin-a-mediated-vagus-nerve-activation
#15
Shinichi Harada, Yudai Nozaki, Wataru Matsuura, Yui Yamazaki, Shogo Tokuyama
Activation of vagus nerve exerts orexin-A (OXA)-mediated suppression of post-ischemic glucose intolerance and cerebral ischemic neuronal damage. Cerebral ischemia induces hepatic inflammatory factors and contributes to the development of hepatic insulin resistance by activating sympathetic nerves. However, it is not enough to understand whether OXA regulates these phenomena through activation of vagus nerve. In this study, we demonstrated that the involvement of OXA-induced activation of vagus nerve in the induction of hepatic inflammatory factors by cerebral ischemia...
February 18, 2017: Brain Research
https://www.readbyqxmd.com/read/28222522/intranasal-insulin-transport-is-preserved-in%C3%A2-aged-samp8-mice-and-is-altered-by-albumin-and-insulin-receptor-inhibition
#16
Elizabeth M Rhea, Samantha R Humann, Surabhi Nirkhe, Susan A Farr, John E Morley, William A Banks
Insulin delivered to the level of the cribriform plate (intranasal insulin) is being investigated for its ability to enhance memory in people with Alzheimer's disease (AD). Recent work has shown intranasal insulin can be detected in young CD-1 mice within 5 min and is still present 60 min after injection. The current study determined whether intranasal insulin transport and the subsequent brain distribution of insulin varies in young, healthy mice (CD-1) compared to those with an AD-like phenotype (aged SAMP8) or those pre-disposed to develop such a phenotype (young SAMP8)...
February 10, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28218623/dreadding-proglucagon-neurons-a-fresh-look-at-metabolic-regulation-by-the-brain
#17
Jonathan E Campbell, David A D'Alessio
Glucagon-like peptide 1 receptor (GLP-1R) signaling in the CNS has been linked to reduced food intake, lower body weight, improved glucose homeostasis, and activation of CNS stress axes. GLP-1 is produced by cells that express proglucagon (GCG); however, the stimuli that activate GCG+ neurons are not well known, which has made understanding the role of this neuronal population in the CNS a challenge. In this issue of the JCI, Gaykema et al. use designer receptors exclusively activated by designer drugs (DREADD) technology to specifically activate GCG+ neurons in mouse models...
February 20, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28218490/comparative-effects-of-energy-restriction-and-resveratrol-intake-on-glycemic-control-improvement
#18
I Milton-Laskibar, L Aguirre, M T Macarulla, U Etxeberria, F I Milagro, J A Martínez, J Contreras, M P Portillo
Resveratrol (RSV) has been proposed as an energy restriction mimetic. This study aimed to compare the effects of RSV and energy restriction on insulin resistance induced by an obesogenic diet. Any additive effect of both treatments was also analyzed. Rats were fed a high-fat high-sucrose diet for 6 weeks. They were then distributed in four experimental groups which were either fed a standard control diet (C), or treated with RSV (30 mg/kg/d), or submitted to energy restriction (R, 15%), or treated with RSV and submitted to energy restriction (RR)...
February 20, 2017: BioFactors
https://www.readbyqxmd.com/read/28218067/melanocortin-4-receptor-gene-mutations-in-a-group-of-turkish-obese-children-and-adolescents
#19
Selma Tunç, Korcan Demir, Fatma Ajlan Tükün, Cihan Topal, Filiz Hazan, Burcu Sağlam, Özlem Nalbantoğlu, Melek Yıldız, Behzat Özkan
OBJECTIVE: Melanocortin-4 receptor (MC4R) mutations are the most common known cause of monogenic obesity but there is limited data regarding MC4R mutations in Turkish subjects. To determine the prevalence of MC4R mutations in a group of Turkish morbid obese children and adolescents. METHODS: MC4R was sequenced in 47 consecutive morbidly obese children and adolescents (28 girls and 19 boys, aged 1-18 years) who presented during a 1-year period. Inclusion criterion was a BMI ≥120% of the 95th percentile or ≥35 kg/m2...
February 20, 2017: Journal of Clinical Research in Pediatric Endocrinology
https://www.readbyqxmd.com/read/28217771/detection-inhibition-and-disintegration-of-amyloid-fibrils-the-role-of-optical-probes-and-macrocyclic-receptors
#20
Achikanath C Bhasikuttan, Jyotirmayee Mohanty
Amyloid fibrils are formed by the aberrant aggregation of proteins into highly ordered β-sheet structures and are believed to be the root cause of several neurodegenerative diseases such as Alzheimer's disease, Parkinson's disease, Prion diseases, etc. and have been the subject of extensive biochemical, biophysical and clinical studies. Developing methods for the early detection of fibril formation using optical spectroscopic techniques and inhibition/disintegration of amyloid fibrils/plaques by introducing small molecules have been a major challenge to establish a clinically facile therapeutic intervention to combat these neurodegenerative diseases...
February 20, 2017: Chemical Communications: Chem Comm
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