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https://www.readbyqxmd.com/read/28641051/beneficial-role-of-citrus-fruit-polyphenols-against-hepatic-dysfunctions-a-review
#1
Md Mohabbulla Mohib, Kazi Afnan, Tasfiq Zaman Paran, Salma Khan, Juthika Sarker, Nahid Hasan, Istiaque Hasan, Md Abu Taher Sagor
Alcoholic liver diseases and virus-induced hepatic dysfunctions are prevalent in western countries. Evidence also suggests that hyperglycemia and insulin resistance are key players in the development of hepatic diseases and their complications. Since the comorbid diseases like obesity, diabetes and vascular dysfunctions primarily affect liver, the modern therapies against other hepatic dysfunctions are becoming a major challenge to treat. In addition to these, polypharmacy and adverse drug reactions (ADRs) are further aggravating the phenomenon...
June 22, 2017: Journal of Dietary Supplements
https://www.readbyqxmd.com/read/28635626/adiponectin-a-therapeutic-target-for-obesity-diabetes-and-endothelial-dysfunction
#2
REVIEW
Arunkumar E Achari, Sushil K Jain
Adiponectin is the most abundant peptide secreted by adipocytes, whose reduction plays a central role in obesity-related diseases, including insulin resistance/type 2 diabetes and cardiovascular disease. In addition to adipocytes, other cell types, such as skeletal and cardiac myocytes and endothelial cells, can also produce this adipocytokine. Adiponectin effects are mediated by adiponectin receptors, which occur as two isoforms (AdipoR1 and AdipoR2). Adiponectin has direct actions in liver, skeletal muscle, and the vasculature...
June 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28633952/chronic-methylphenidate-regulates-genes-and-proteins-mediating-neuroplasticity-in-the-juvenile-rat-brain
#3
Emmanuel Quansah, Tiziana Sgamma, Estabraq Jaddoa, Tyra S C Zetterström
Methylphenidate (MPH) is the front-line psychostimulant medication prescribed for alleviating the symptoms associated with attention deficit hyperactivity disorder (ADHD) in children. Here, we investigated the effects of chronic MPH (2.0mg/kg, twice daily for 15 days) exposure to young rats (20-25days old at start of treatment) on the expression of genes and proteins associated with neuroplasticity, such as activity regulated cytoskeleton-associated protein (Arc), insulin receptor substrate protein 53 (IRSp53), cell division control protein 42 (Cdc42), and actin-related protein 2 (Arp2)...
June 17, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28633944/gene-expression-analysis-identify-a-metabolic-and-cell-function-alterations-as-a-hallmark-of-obesity-without-metabolic-syndrome-in-peripheral-blood-a-pilot-study
#4
Daniel Antonio de Luis, Raquel Almansa, Rocío Aller, Olatz Izaola, E Romero
BACKGROUND: Understanding molecular basis involved in overweight is an important first step in developing therapeutic pathways against excess in body weight gain. OBJECTIVE: The purpose of our pilot study was to evaluate the gene expression profiles in the peripheral blood of obese patients without other metabolic complications. DESIGN: A sample of 17 obese patients without metabolic syndrome and 15 non obese control subjects was evaluated in a prospective way...
June 10, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28631500/pancreatic-%C3%AE-cell-survival-and-proliferation-are-promoted-by-protein-kinase-g-type-i%C3%AE-and-downstream-regulation-of-akt-foxo1
#5
Janica C Wong, Van Vo, Priyatham Gorjala, Ronald R Fiscus
Early studies showed nitric oxide as a pro-inflammatory-cytokine-induced toxin involved in pancreatic β-cell destruction during pathogenesis of type-1 diabetes. However, nitric oxide has both cytotoxic and cytoprotective effects on mammalian cells, depending on concentration and micro-environmental surroundings. Our studies have shown that low/physiological-level nitric oxide selectively activates protein kinase G type Iα isoform, promoting cytoprotective/pro-cell-survival effects in many cell types. In bone marrow-derived stromal/mesenchymal stem cells, protein kinase G type Iα mediates autocrine effects of nitric oxide and atrial natriuretic peptide, promoting DNA-synthesis/proliferation and cell survival...
June 1, 2017: Diabetes & Vascular Disease Research
https://www.readbyqxmd.com/read/28630896/the-gh-receptor-exon-3-deletion-is-a-marker-of-male-specific-exceptional-longevity-associated-with-increased-gh-sensitivity-and-taller-stature
#6
Danny Ben-Avraham, Diddahally R Govindaraju, Temuri Budagov, Delphine Fradin, Peter Durda, Bing Liu, Sandy Ott, Danielle Gutman, Lital Sharvit, Robert Kaplan, Pierre Bougnères, Alex Reiner, Alan R Shuldiner, Pinchas Cohen, Nir Barzilai, Gil Atzmon
Although both growth hormone (GH) and insulin-like growth factor 1 (IGF-1) signaling were shown to regulate life span in lower organisms, the role of GH signaling in human longevity remains unclear. Because a GH receptor exon 3 deletion (d3-GHR) appears to modulate GH sensitivity in humans, we hypothesized that this polymorphism could play a role in human longevity. We report a linear increased prevalence of d3-GHR homozygosity with age in four independent cohorts of long-lived individuals: 841 participants [567 of the Longevity Genes Project (LGP) (8% increase; P = 0...
June 2017: Science Advances
https://www.readbyqxmd.com/read/28630133/dual-regulation-of-gluconeogenesis-by-insulin-and-glucose-in-the-proximal-tubules-of-the-kidney
#7
Motohiro Sasaki, Takayoshi Sasako, Naoto Kubota, Yoshitaka Sakurai, Iseki Takamoto, Tetsuya Kubota, Reiko Inagi, George Seki, Moritaka Goto, Kohjiro Ueki, Masaomi Nangaku, Takahito Jomori, Takashi Kadowaki
Growing attention has been focused on the roles of the proximal tubules (PTs) of the kidney in glucose metabolism, including the mechanism of regulation of gluconeogenesis. Here, we found that PT-specific IRS1/2 double-knockout mice, established by using the newly generated sodium-glucose cotransporter-2 (SGLT2)-Cre transgenic mice, exhibited impaired insulin signaling and upregulated gluconeogenic gene expression and renal gluconeogenesis, resulting in systemic insulin resistance. On the other hand, in streptozotocin-treated mice, although insulin action was impaired in the PTs, the gluconeogenic gene expression was unexpectedly downregulated in the renal cortex, which was restored by administration of an SGLT1/2 inhibitor...
June 19, 2017: Diabetes
https://www.readbyqxmd.com/read/28629513/erythropoietin-and-hypothalamic-pituitary-axis
#8
Soumyadeep Dey, Constance T Noguchi
Erythropoietin (EPO), known primarily for its erythropoietic activity, is commonly used clinically to treat anemia of chronic kidney disease. However, the expression of EPO receptor (EpoR) beyond erythroid tissue provides for potential extrahematopoietic effects of EPO, including EPO regulation of metabolic homeostasis (Zhang et al., 2014). Small clinical studies have shown that EPO treatment in patients with end-stage renal disease improved glycemic control and insulin sensitivity. Studies in animal models have shown that EPO regulation of metabolism is mainly attributed to its response in fat, and the hypothalamus-pituitary axis (Dey et al...
2017: Vitamins and Hormones
https://www.readbyqxmd.com/read/28628857/identification-of-b-and-t-cell-epitope-based-peptide-vaccine-from-igf-1-receptor-in-breast-cancer
#9
Manijeh Mahdavi, Violaine Moreau, Majid Kheirollahi
The insulin-like growth factor-1 receptor (IGF-1R) plays a key role in proliferation, growth, differentiation, and development of several human malignancies including breast and pancreatic adenocarcinoma. IGF-1R targeted immunotherapeutic approaches are particularly attractive, as they may potentially elicit even stronger antitumor responses than traditional targeted approaches. Cancer peptide vaccines can produce immunologic responses against cancer cells by triggering helper T cell (Th) or cytotoxic T cells (CTL) in association with Major Histocompatibility Complex (MHC) class I or II molecules on the cell surface of antigen presenting cells...
June 8, 2017: Journal of Molecular Graphics & Modelling
https://www.readbyqxmd.com/read/28628674/hepatic-microvascular-dysfunction-and-increased-advanced-glycation-end-products-are-components-of-non-alcoholic-fatty-liver-disease
#10
Evelyn Nunes Goulart da Silva Pereira, Raquel Rangel Silvares, Edgar Eduardo Ilaquita Flores, Karine Lino Rodrigues, Isalira Peroba Ramos, Igor José da Silva, Marcelo Pelajo Machado, Rosiane Aparecida Miranda, Carmen Cabanelas Pazos-Moura, Cassiano F Gonçalves-de-Albuquerque, Hugo Caire de Castro Faria-Neto, Eduardo Tibiriça, Anissa Daliry
BACKGROUND: This study aimed to investigate the pathophysiology of hepatic microcirculatory dysfunction in non-alcoholic fatty liver disease (NAFLD). METHODS: In Wistar rats, NAFLD model was induced by 20 weeks of high-fat diet (HFD) feeding. Rolling and adhesion of leukocytes and tissue perfusion in hepatic microcirculation were examined using in vivo microscopic and laser speckle contrast imaging (LSCI), respectively. Oxidative stress and inflamatory parameters were analysed by TBARs, catalase enzyme activity, RT-PCR and ELISA...
2017: PloS One
https://www.readbyqxmd.com/read/28627639/microrna-187-inhibits-tumor-growth-and-metastasis-via-targeting-of-igf-1r-in-hepatocellular-carcinoma
#11
Xinqiang Han, Xuemin Wang, Baolei Zhao, Gang Chen, Yuguo Sheng, Wenming Wang, Mujian Teng
Hepatocellular carcinoma (HCC) is the primary and most frequently occurring type of malignant liver cancer, accounting for 70-85% of total liver cancer cases worldwide. It has previously been demonstrated that the aberrant expression of microRNAs (miR) contributes to carcinogenesis and progression of various human malignancies, including HCC. However, mechanisms underlying the differential expression and specific roles of miR‑187 in HCC remain to be elucidated, particularly regarding how the modulation of malignant phenotypes in HCC cells occurs...
June 15, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28627583/deoxyactein-protects-pancreatic-%C3%AE-cells-against-methylglyoxal-induced-oxidative-cell-damage-by-the-upregulation-of-mitochondrial-biogenesis
#12
Kwang Sik Suh, Eun Mi Choi, Woon-Won Jung, Yu Jin Kim, Soo Min Hong, So Yong Park, Sang Youl Rhee, Suk Chon
Methylglyoxal (MG) is one of the major precursors of advanced glycation end products (AGEs), which are considered to be one of the causes of diabetes and its complications. The root and rhizomes of black cohosh (Cimicifuga racemosa) have long been used medicinally, and deoxyactein is one of its major constituents. In the present study, the protective effects of deoxyactein against MG-induced oxidative cell damage were investigated in insulin-producing pancreatic β-cells. We found that deoxyactein protected the pancreatic β-cells against MG-induced cell death...
June 12, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28627468/a-novel-chalcone-derivative-lqfm064-induces-breast-cancer-cells-death-via-p53-p21-kit-and-pdgfra
#13
Bruna Lannuce Silva Cabral, Artur Christian Garcia da Silva, Renato Ivan de Ávila, Alane Pereira Cortez, Rangel Magalhães Luzin, Luciano Morais Lião, Eric de Souza Gil, Gérman Sanz, Boniek G Vaz, José R Sabino, Ricardo Menegatti, Marize Campos Valadares
This study shows the design, synthesis and antitumoral potential evaluation of a novel chalcone-like compound, (E)-3- (3, 5-di-ter-butyl-4-hydroxyphenyl)-1- (4-hydroxy-3-methoxyphenyl) prop-2-en-1-one [LQFM064) (4)], against human breast adenocarcinoma MCF7 cells. Some toxicological parameters were also investigated. LQFM064) (4) exhibited cytotoxic activity against MCF7 cells (IC50=21μM), in a concentration dependent-manner, and triggered significant changes in cell morphology and biochemical/molecular parameters, which are suggestive of an apoptosis inductor...
June 13, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28626000/baiap3-a-c2-domain-containing-munc13-protein-controls-the-fate-of-dense-core-vesicles-in-neuroendocrine-cells
#14
Xingmin Zhang, Shan Jiang, Kelly A Mitok, Lingjun Li, Alan D Attie, Thomas F J Martin
Dense-core vesicle (DCV) exocytosis is a SNARE (soluble N-ethylmaleimide-sensitive fusion attachment protein receptor)-dependent anterograde trafficking pathway that requires multiple proteins for regulation. Several C2 domain-containing proteins are known to regulate Ca(2+)-dependent DCV exocytosis in neuroendocrine cells. In this study, we identified others by screening all (∼139) human C2 domain-containing proteins by RNA interference in neuroendocrine cells. 40 genes were identified, including several encoding proteins with known roles (CAPS [calcium-dependent activator protein for secretion 1], Munc13-2, RIM1, and SYT10) and many with unknown roles...
June 16, 2017: Journal of Cell Biology
https://www.readbyqxmd.com/read/28625137/chemokine-like-receptor-1-cmklr-1-receptor-a-potential-therapeutic-target-in-management-of-chemerin-induced-type-2-diabetes-mellitus-and-cancer
#15
Sangeetha Perumalsamy, Nurul Ain Aqilah Mohd Zin, Riyanto Teguh Widodo, Wan Azman Wan Ahmad, Shireene Ratna Db Vethakkan, Hasniza Zaman Huri
BACKGROUND: Chemerin is an adipokine that induces insulin resistance by the mechanism of inflammation in adipose tissue but these are still unclear. A high level of chemerin in humans is considered as a marker of inflammation in insulin resistance and obesity as well as in type 2 diabetes mellitus. Despite the role of chemerin in insulin resistance progression, chemerin as one of the novel adipokines is proposed to be involved in high cancer risk and mortality. AIM: The aim of this paper was to review the role of CMKLR-1 receptor and the potential therapeutic target in the management of chemerin induced type 2 diabetes mellitus and cancer...
June 15, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28625007/the-role-of-insulin-like-growth-factor-i-ii-receptor-on-development-of-pleomorphic-adenoma
#16
Ibrahim Arslan, Erol Keles, I Hanifi Ozercan, Mehmet Tokdemir, Turgut Karlidag, Irfan Kaygusuz, Orkun Eroglu, Koray Yuksel, Sinasi Yalcin
Pleomorphic adenoma is a slow-growing salivary gland tumor frequently arising from the parotid gland. In this study, we investigated the role of the insulin-like growth factor I-II receptor (IGFI-IIR) levels on the development of parotid gland pleomorphic adenomas. The study included 20 males and 20 females who had superficial parotidectomy with a histopathological diagnosis of pleomorphic adenoma in Fırat University Otorhinolaryngology Clinic between 2000 and 2011. The ages of the patients ranged between 20 and 50 years...
June 17, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28624907/dityrosine-administration-induces-dysfunction-of-insulin-secretion-accompanied-by-diminished-thyroid-hormones-t3-function-in-pancreas-of-mice
#17
Yin-Yi Ding, Zhu-Qing Li, Xiang-Rong Cheng, Yu-Mei Ran, Sha-Ji Wu, Yonghui Shi, Guowei Le
Oxidized tyrosine products are commonly found in food with high protein content and have been demonstrated to cause damage of liver and kidney in our previous studies. Dityrosine (Dityr) is a typical oxidized tyrosine product. Due to its structural homology with thyroid hormones T3, we assumed that one of the endocrine systems most likely considered in connection with its disruption by Dityr may be the T3 action. T3 plays important roles in insulin synthesis, and thyroid hormone resistance (RTH) is associated with the impairment of glucose metabolism...
June 17, 2017: Amino Acids
https://www.readbyqxmd.com/read/28624122/glucagon-like-peptide-1-and-insulin-synergistically-activate-vagal-afferent-neurons
#18
Yusaku Iwasaki, Chayon Goswami, Toshihiko Yada
Intestinal glucagon-like peptide-1 (GLP-1) and pancreatic insulin, released postprandially, commonly regulate glucose metabolism. Recent clinical experience indicates that the GLP-1R agonist and insulin in combination, compared to insulin alone, results in better glycemic and weight controls in type 2 diabetic patients. These observations suggest possible interactive effect of these hormones. These hormones, in addition to peripherally controlling glycemia, exert central regulation of food intake and glucose metabolism, the effect at least partly mediated by signaling to the brain via the vagal afferents...
May 25, 2017: Neuropeptides
https://www.readbyqxmd.com/read/28624040/hyperglycemia-attenuates-receptor-activator-of-nf-%C3%AE%C2%BAb-ligand-induced-macrophage-activation-by-suppressing-insulin-signaling
#19
Chitaru Kurihara, Teruyoshi Tanaka, Dai Yamanouchi
BACKGROUND: Although male gender, aging, hypertension, dyslipidemia, and smoking are common risk factors for abdominal aortic aneurysm, diabetes mellitus is an independent negative risk factor. In aneurysm tissue, matrix metalloproteinases (MMPs) expressed by activated macrophages degrades extracellular matrix proteins. In our previous experimental study, we demonstrated that the aneurysmal formation and macrophage activity were suppressed by inhibiting mimicking hyperglycemia (HG) through upregulation of glucose-sensing nuclear receptor, Nr1h2...
June 15, 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28623929/the-potential-regulatory-mechanisms-of-the-gonadotropin-releasing-hormone-in-gonadotropin-transcriptions-identified-with-bioinformatics-analyses
#20
Wei Xiang, Baoyun Zhang, Fenglin Lv, Guangde Feng, Long Chen, Fang Yang, Ke Zhang, Chunyu Cao, Pingqing Wang, Mingxing Chu
BACKGROUND: The regulation of gonadotropin synthesis and release by gonadotropin-releasing hormone (GnRH) plays an essential role in the neuroendocrine control of reproduction. However, the mechanisms underlying gonadotropin regulation by GnRH pulse frequency and amplitude are still ambiguous. This study aimed to explore the molecular mechanisms and biological pathways associated with gonadotropin synthesis by GnRH pulse frequencies and amplitudes. METHODS: Using GSE63251 datasets downloaded from the Gene Expression Omnibus (GEO), differentially expressed genes (DEGs) were screened by comparing the RNA expression from the GnRH pulse group, the GnRH tonic group and the control group...
June 17, 2017: Reproductive Biology and Endocrinology: RB&E
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