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inositol and dyslipidemia

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https://www.readbyqxmd.com/read/26491824/polycystic-ovary-syndrome-pcos-and-hyperandrogenism-the-role-of-a-new-natural-association
#1
G Morgante, V Cappelli, A Di Sabatino, M G Massaro, V De Leo
AIM: Polycystic ovary syndrome (PCOS) affects 5-10% of women of childbearing age and manifests itself through oligomenorrhea, anovulation, hirsutism, micro-polycystic ovaries. Insulin resistance is a characteristic of PCOS patients and is more pronounced in obese patients. Insulin resistance and consequent hyperinsulinemia are related to many aspects of the syndrome such as hyperandrogenism, reproductive disorders, acne and hirsutism. In the long-term it may increase the risk of cardiovascular disease and negatively affect lipid profile and blood pressure...
October 2015: Minerva Ginecologica
https://www.readbyqxmd.com/read/26456051/sh2-domain-containing-inositol-5-phosphatase-ship2-inhibition-ameliorates-high-glucose-induced-de-novo-lipogenesis-and-vldl-production-through-regulating-ampk-mtor-srebp1-pathway-and-ros-production-in-hepg2-cells
#2
Sattar Gorgani-Firuzjaee, Reza Meshkani
Hepatic de-novo lipogenesis and production of triglyceride rich very low density lipoprotein (VLDL) is increased in the state of insulin resistance, however, the role of a negative regulator of the insulin signaling pathway, the SH2 domain-containing inositol 5-phosphatase (SHIP2) in this process, remains unknown. In the present study, we studied the molecular mechanisms linking SHIP2 expression to metabolic dyslipidemia using overexpression or suppression of SHIP2 gene in HepG2 cells exposed to high glucose (33 mM)...
December 2015: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/26188518/sh2-domain-containing-inositol-5-phosphatase-ship2-regulates-de-novo-lipogenesis-and-secretion-of-apob100-containing-lipoproteins-in-hepg2-cells
#3
Sattar Gorgani-Firuzjaee, Shohreh Khatami, Khosrow Adeli, Reza Meshkani
Hepatic de-novo lipogenesis and production of triglyceride rich VLDL are regulated via the phosphoinositide 3-kinase cascade, however, the role of a negative regulator of this pathway, the SH2 domain-containing inositol 5-phosphatase (SHIP2) in this process, remains unknown. In the present study, we investigated the molecular link between SHIP2 expression and metabolic dyslipidemia using overexpression or suppression of SHIP2 gene in HepG2 cells. The results showed that overexpression of the wild type SHIP2 gene (SHIP2-WT) led to a higher total lipid content (28%) compared to control, whereas overexpression of the dominant negative SHIP2 gene (SHIP2-DN) reduced total lipid content in oleate treated cells by 40%...
September 4, 2015: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/24898153/updates-on-the-myo-inositol-plus-d-chiro-inositol-combined-therapy-in-polycystic-ovary-syndrome
#4
REVIEW
Vittorio Unfer, Giuseppina Porcaro
Polycystic ovary syndrome (PCOS) is one of the most common endocrine disorders affecting women of reproductive age. It is characterized by chronic anovulation, hyperandrogenism, and insulin resistance. It is the main cause of infertility due to the menstrual dysfunction and metabolic disorders. Women with PCOS also have an increased cardiovascular risk because of dyslipidemia and insulin resistance. So far, we have a lot of information about the etiology of PCOS, and many steps forward have been made about the diagnosis of this syndrome, but there is still no certainty about the therapy...
September 2014: Expert Review of Clinical Pharmacology
https://www.readbyqxmd.com/read/23512296/dyslipidemia-links-obesity-to-early-cerebral-neurochemical-alterations
#5
Andreana P Haley, Mitzi M Gonzales, Takashi Tarumi, Hirofumi Tanaka
OBJECTIVE: To examine the role of hypertension, hyperglycemia, and dyslipidemia in potentially accounting for obesity-related brain vulnerability in the form of altered cerebral neurochemistry. DESIGN AND METHODS: Sixty-four adults, ages 40-60 years, underwent a health screen and proton magnetic resonance spectroscopy ((1) H MRS) of occipitoparietal gray matter to measure N-acetyl aspartate (NAA), choline (Cho), myo-inositol (mI), and glutamate (Glu) relative to creatine (Cr)...
October 2013: Obesity
https://www.readbyqxmd.com/read/23467955/the-combined-therapy-myo-inositol-plus-d-chiro-inositol-in-a-physiological-ratio-reduces-the-cardiovascular-risk-by-improving-the-lipid-profile-in-pcos-patients
#6
M Minozzi, M Nordio, R Pajalich
BACKGROUND: Women with Polycystic Ovarian Syndrome (PCOS) present several factors that increase the cardiovascular risk, such as insulin resistance and dyslipidemia. Myo-inositol and D-chiro-inositol have been shown to improve insulin resistance, hyperandrogenism and to induce ovulation in PCOS women. However, their effects on dyslipidemia are less clear. The aim of the present study was to evaluate whether the combined therapy myo-inositol plus D-chiro-inositol (in a in a physiological ratio of 40:1) improve the metabolic profile, therefore, reducing cardiovascular risk in PCOS patients...
February 2013: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/23351578/wax-matrix-extended-release-niacin-vs-inositol-hexanicotinate-a-comparison-of-wax-matrix-extended-release-niacin-to-inositol-hexanicotinate-no-flush-niacin-in-persons-with-mild-to-moderate-dyslipidemia
#7
RANDOMIZED CONTROLLED TRIAL
Joseph M Keenan
BACKGROUND: Nicotinic acid (NA), long used for the treatment of dyslipidemia, has shown problems with undesirable side effects and safety issues. Wax-matrix, extended-release niacin (WMER) and inositol hexanicotinate (IHN) have both been formulated to increase patient tolerability. Several trials of WMER demonstrated good efficacy in improving dyslipidemia; however, there are few scientific data on the use of IHN. OBJECTIVE: This study was designed to compare the efficacy and tolerability of WMER and IHN to each other and placebo to help clinicians make an informed choice of NA agents...
January 2013: Journal of Clinical Lipidology
https://www.readbyqxmd.com/read/22646128/niacin-chemical-forms-bioavailability-and-health-effects
#8
REVIEW
Douglas MacKay, John Hathcock, Erminia Guarneri
Elevated low-density lipoprotein cholesterol (LDL-C) has been the main target of lipid-altering therapy to reduce cardiovascular risk associated with dyslipidemia. Residual cardiovascular risk remains, however, after achievement of goal LDL-C levels and is associated in part with other risk markers of cardiovascular disease, including low high-density lipoprotein cholesterol (HDL-C), high lipoprotein a, and hypertriglyceridemia. Niacin is considered a valuable agent for therapy to modify high LDL-C as well as low HDL-C, high lipoprotein a, and hypertriglyceridemia...
June 2012: Nutrition Reviews
https://www.readbyqxmd.com/read/22567033/a-systematic-review-of-xuezhikang-an-extract-from-red-yeast-rice-for-coronary-heart-disease-complicated-by-dyslipidemia
#9
Qinghua Shang, Zhaolan Liu, Keji Chen, Hao Xu, Jianping Liu
Objective. This systematic review aims to evaluate the benefit and side effect of Xuezhikang for coronary heart disease (CHD) complicated by dyslipidemia. Methods. All randomized clinical trials (RCTs) with Xuezhikang as a treatment for CHD combined with dyslipidemia were considered for inclusion. Data extraction and analyses and quality assessment were conducted according to the Cochrane standards. Results. We included 22 randomized trials. Xuezhikang showed significant benefit on the incidence of all-cause deaths, CHD deaths, myocardial infarction, and revascularization as compared with placebo based on conventional treatment for CHD...
2012: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/21994216/chronic-exposure-to-high-fatty-acids-impedes-receptor-agonist-induced-nitric-oxide-production-and-increments-of-cytosolic-ca2-levels-in-endothelial-cells
#10
Yanxia Tang, GuoDong Li
Dyslipidemia is a common metabolic disorder in diabetes. Nitric oxide (NO) production from endothelium plays the primary role in endothelium-mediated vascular relaxation and other endothelial functions. Therefore, we investigated the effects of elevated free fatty acids (FFA) on the stimulation of NO production by phospholipase C (PLC)-activating receptor agonists (potent physiological endothelium-dependent vasodilators) and defined the possible alterations of signaling pathways implicated in this scenario...
December 2011: Journal of Molecular Endocrinology
https://www.readbyqxmd.com/read/19301779/-nutritional-genomics-an-approach-to-the-genome-environment-interaction
#11
REVIEW
Fiona Xacur-García, Jorge I Castillo-Quan, Víctor M Hernández-Escalante, Hugo Laviada-Molina
Nutritional genomics forms part of the genomic sciences and addresses the interaction between genes and the human diet, its influence on metabolism and subsequent susceptibility to develop common diseases. It encompasses both nutrigenomics, which explores the effects of nutrients on the genome, proteome and metabolome; and nutrigenetics, that explores the effects of genetic variations on the diet/disease interaction. A number of mechanisms drive the gene/diet interaction: elements in the diet can act as links for transcription factor receptors and after intermediary concentrations, thereby modifying chromatin and impacting genetic regulation; affect signal pathways, regulating phosphorylation of tyrosine in receptors; decrease signaling through the inositol pathway; and act through epigenetic mechanisms, silencing DNA fragments by methylation of cytosine...
November 2008: Revista Médica de Chile
https://www.readbyqxmd.com/read/18174606/elucidation-of-signaling-and-functional-activities-of-an-orphan-gpcr-gpr81
#12
Hongfei Ge, Jennifer Weiszmann, Jeff D Reagan, Jamila Gupte, Helene Baribault, Tibor Gyuris, Jin-Long Chen, Hui Tian, Yang Li
GPR81 is an orphan G protein-coupled receptor (GPCR) that has a high degree of homology to the nicotinic acid receptor GPR109A. GPR81 expression is highly enriched and specific in adipocytes. However, the function and signaling properties of GPR81 are unknown because of the lack of natural or synthetic ligands. Using chimeric G proteins that convert Gi-coupled receptors to Gq-mediated inositol phosphate (IP) accumulation, we show that GPR81 can constitutively increase IP accumulation in HEK293 cells and suggest that GPR81 couples to the Gi signaling pathway...
April 2008: Journal of Lipid Research
https://www.readbyqxmd.com/read/12877088/-pharmacological-treatment-of-postprandial-hyperglycemia-in-hypertensive-patients-with-type-2-diabetes-mellitus
#13
REVIEW
Kentaro Yamada
Several epidemiological studies have shown an association between postprandial hyperglycemia and mortality from cardiovascular disease. Postprandial hyperglycemia is frequently associated with visceral obesity which plays a key role in metabolic abnormalities such as dyslipidemia and hypertension. Inhibitors of alpha-glucosidase and nateglinide have beneficial effects on the metabolic syndrome associated with visceral obesity. Voglibose in combination with diet therapy reduces visceral fat deposition and ameliorates insulin resistance...
July 2003: Nihon Rinsho. Japanese Journal of Clinical Medicine
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