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https://www.readbyqxmd.com/read/29679909/mechanisms-of-the-active-components-from-korean-pine-nut-preventing-and-treating-d-galactose-induced-aging-rats
#1
Jianmei Zhang, Weiwei Lin, Ruijun Wu, Yanmeng Liu, Kai Zhu, Jinyu Ren, Sufang Zhang, Xiaomei Ling
Age-related neuronal injury and oxidative damage are the predominant factors for neurodegenerative diseases like Alzheimer's disease (AD). The aim of this study was to explore whether chronic administration of d-galactose (d-gal) can cause neuronal injury and oxidative damage, and to investigate the neuroprotective and antioxidative effects of the active components (UPNO-1) from Korean pine nut (Pinus koraiensis). Two dosing regimens were designed, one for the evaluation of preventive effects in which the rats were simultaneously administrated d-gal and UPNO-1/fishoil for 12 weeks, the other for the evaluation of therapeutic effects in which the rats were given d-gal for 8 weeks before treated with UPNO-1/selegiline for 8 weeks...
April 18, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29679542/treatments-for-diabetes-mellitus-type-ii-new-perspectives-regarding-the-possible-role-of-calcium-and-camp-interaction
#2
REVIEW
Diego Soares Carvalho, Alexandre Aparecido de Almeida, Aurélio Ferreira Borges, Diego Vannucci Campos
Diabetes mellitus (DM) is among the top ten causes of death worldwide. It is considered to be one of the major global epidemics of the 21st century, with a significant impact on public health budgets. DM is a metabolic disorder with multiple etiologies. Its pathophysiology is marked by dysfunction of pancreatic β-cells which compromises the synthesis and secretion of insulin along with resistance to insulin action in peripheral tissues (muscle and adipose). Subjects presenting insulin resistance in DM type 2 often also exhibit increased insulin secretion and hyperinsulinemia...
April 18, 2018: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29679350/alleviation-mechanisms-of-selenium-on-cadmium-spiked-in-chicken-ovarian-tissue-perspectives-from-autophagy-and-energy-metabolism
#3
Shuang Wang, Zhe Xu, Hang Yin, Yahong Min, Shu Li
Cadmium (Cd) is a kind of toxic heavy metal and it can cause damage to organs and tissues. Selenium (Se) can antagonize some metal element toxicity including Cd. The present study was designed to investigate Cd-induced damage to chicken ovary by autophagy and the protective mechanism of Se on Cd-induced damage. Administration of Cd for 12 weeks led to energy metabolism disorder of the chicken ovarian tissues, which resulted in autophagy. In addition, the mRNA expression of glucose-related genes including hexokinase II (HK2), pyruvate kinase (PK), pyruvate dehydrogenase complex (PDHX), and succinate dehydrogenase (SDH) and the activities of ATPase, including Na+ -K+ -ATPase, Ca2+ -ATPase, Mg2+ -ATPase, were all downregulated remarkably compared with the control...
April 21, 2018: Biological Trace Element Research
https://www.readbyqxmd.com/read/29679161/present-and-future-of-ultra-high-field-mri-in-neurodegenerative-disorders
#4
REVIEW
Graziella Donatelli, Roberto Ceravolo, Daniela Frosini, Michela Tosetti, Ubaldo Bonuccelli, Mirco Cosottini
PURPOSE OF REVIEW: With a high signal-to-noise ratio, unparalleled spatial resolution, and improved contrasts, ultra-high field MR (≥ 7 T) has great potential in depicting the normal radiological anatomy of smaller structures in the brain and can also provide more information about morphological, quantitative, and metabolic changes associated with a wide range of brain disorders. By focusing attention on specific brain regions believed to be associated with early pathological change, or by more closely inspecting recognized foci of brain pathology, ultra-high field MR can improve the accuracy and sensitivity of neuroimaging...
April 20, 2018: Current Neurology and Neuroscience Reports
https://www.readbyqxmd.com/read/29679072/polyunsaturated-fatty-acids-metabolism-purine-metabolism-and-inosine-as-potential-independent-diagnostic-biomarkers-for-major-depressive-disorder-in-children-and-adolescents
#5
Xinyu Zhou, Lanxiang Liu, Xinghui Lan, David Cohen, Yuqing Zhang, Arun V Ravindran, Shuai Yuan, Peng Zheng, David Coghill, Lining Yang, Sarah E Hetrick, Xiaofeng Jiang, Jean-Jacques Benoliel, Andrea Cipriani, Peng Xie
Major depressive disorder (MDD) in children and adolescents is a recurrent and disabling condition globally but its pathophysiology remains poorly elucidated and there are limited effective treatments available. We performed metabolic profiling of plasma samples based on ultra-high-performance liquid chromatography equipped with quadrupole time-offlight mass spectrometry to explore the potential biomarkers of depression in children and adolescents with MDD. We identified several perturbed pathways, including fatty acid metabolism-particularly the polyunsaturated fatty acids metabolism, and purine metabolism-that were associated with MDD in these young patients...
April 20, 2018: Molecular Psychiatry
https://www.readbyqxmd.com/read/29678744/long-noncoding-rna-lncarsr-promotes-hepatic-cholesterol-biosynthesis-via-modulating-akt-srebp-2-hmgcr-pathway
#6
Jiabin Hang, Shangjun Chen, Dongliang Cai, Deqiang Bian, Fengling Wang
AIMS: Disruption of cholesterol homeostasis has been identified as a major factor in the pathogenesis of atherosclerosis, myocardial infarction, and strokes. Long noncoding RNAs (lncRNAs) have emerged as critical players in cellular cholesterol metabolism, but their functions are still largely unknown. MATERIALS AND METHODS: C57BL6/j mice were fed with high cholesterol diet (containing 4% cholesterol) or chow diet. Adenoviruses-lncARSR and lncARSR shRNA were used to overexpress or knockdown lncARSR expression...
April 17, 2018: Life Sciences
https://www.readbyqxmd.com/read/29678607/association-between-hypertension-and-metabolic-disorders-among-elderly-patients-in-north-jordan
#7
Nuha Alwardat, Laura Di Renzo, Renata Costa de Miranda, Sofian Alwardat, Paola Sinibaldi Salimei, Antonino De Lorenzo
BACKGROUND: Hypertension (HTN), dyslipidemia and hyperglycemia are major risk factors for cardiovascular disease, accounting for the highest morbidity and mortality among the elderly Jordanian population. This study aimed to evaluate serum lipid and glucose profiles of hypertensive patients and normotensive controls, and determine the risk factors for HTN among elderly population in Jordan. METHODS: A cross-sectional study was carried out among 200 participants, including 111 hypertensive patients and 89 normotensive controls from June to October 2017 in North Jordan...
April 12, 2018: Diabetes & Metabolic Syndrome
https://www.readbyqxmd.com/read/29678570/overexpression-of-nrk1-ameliorates-diet-and-age-induced-hepatic-steatosis-and-insulin-resistance
#8
Rui Fan, Jing Cui, Feng Ren, Qingzhi Wang, Yanmei Huang, Bin Zhao, Lai Wei, Xinlai Qian, Xiwen Xiong
NAD+ is a co-enzyme in redox reactions and a substrate required for activity of various enzyme families, including Sirtuins and poly(ADP-ribose) polymerases. Dietary supplementation of NAD+ precursors nicotinamide mononucleotide (NMN) or nicotinamide riboside (NR) protects against metabolic disease, neurodegenerative disorders and age-related physiological decline in mammals. Here we sought to identify the roles of nicotinamide riboside kinase 1 (NRK1) plays in regulating hepatic NAD+ biosynthesis and lipid metabolism...
April 17, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29678491/polycystic-ovary-syndrome-pcos-an-inflammatory-systemic-lifestyle-endocrinopathy
#9
REVIEW
Seema Patel
Polycystic ovary syndrome (PCOS) is an endocrine disorder, afflicting females of reproductive age. This syndrome leads to infertility, apart from a gamut of other metabolic co-morbidities such as insulin resistance, obesity, cardiovascular problems, including a litany of other health issues. PCOS is a polygenic, polyfactorial, systemic, inflammatory, dysregulated steroid state, autoimmune disease, manifesting largely due to lifestyle errors. The advent of biochemical tests and ultrasound scanning has enabled the detection of PCOS in the affected females...
April 17, 2018: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29678289/pathophysiology-of-melanocortin-receptors-and-their-accessory-proteins
#10
REVIEW
T V Novoselova, L F Chan, A J L Clark
The melanocortin receptors (MCRs) and their accessory proteins (MRAPs) are involved in regulation of a diverse range of endocrine pathways. Genetic variants of these components result in phenotypic variation and disease. The MC1R is expressed in skin and variants in the MC1R gene are associated with ginger hair color. The MC2R mediates the action of ACTH in the adrenal gland to stimulate glucocorticoid production and MC2R mutations result in familial glucocorticoid deficiency (FGD). MC3R and MC4R are involved in metabolic regulation and their gene variants are associated with severe pediatric obesity, whereas the function of MC5R remains to be fully elucidated...
April 2018: Best Practice & Research. Clinical Endocrinology & Metabolism
https://www.readbyqxmd.com/read/29678287/novel-mechanisms-of-g-protein-coupled-receptors-functions-at-1-angiotensin-receptor-acts-as-a-signaling-hub-and-focal-point-of-receptor-cross-talk
#11
REVIEW
András D Tóth, Gábor Turu, László Hunyady, András Balla
AT1 angiotensin receptor (AT1 R), a prototypical G protein-coupled receptor (GPCR), is the main receptor, which mediates the effects of the renin-angiotensin system (RAS). AT1 R plays a crucial role in the regulation of blood pressure and salt-water homeostasis, and in the development of pathological conditions, such as hypertension, heart failure, cardiovascular remodeling, renal fibrosis, inflammation, and metabolic disorders. Stimulation of AT1 R leads to pleiotropic signal transduction pathways generating arrays of complex cellular responses...
April 2018: Best Practice & Research. Clinical Endocrinology & Metabolism
https://www.readbyqxmd.com/read/29678282/multiple-hormone-resistance-and-alterations-of-g-protein-coupled-receptors-signaling
#12
REVIEW
Mantovani Giovanna, Elli Francesca Marta
Metabolic disorders deriving from the non-responsiveness of target organs to hormones, which manifest clinically similar to the deficiency of a given hormone itself, derive from molecular alterations affecting specific hormone receptors. Pseudohypoparathyroidism (PHP) and related disorders exemplify an unusual form of hormone resistance as the underlying molecular defect is a partial deficiency of the α subunit of the stimulatory G protein (Gsα), a key regulator of cAMP signaling pathway, or, as more recently described, of downstream effector proteins of the same pathway, such as PKA regulatory subunit 1A (R1A) and phosphodyestarase type 4D (PDE4D)...
April 2018: Best Practice & Research. Clinical Endocrinology & Metabolism
https://www.readbyqxmd.com/read/29678261/mirtazapine
#13
Abdulrahman Al-Majed, Ahmed H Bakheit, Raed M Alharbi, Hatem A Abdel Aziz
Mirtazapine is one of antidepression which is used mainly in the treatment of depression, moreover, it is sometimes used in the treatment of anxiety disorders, insomnia, nausea, and vomiting, and to produce weight gain when desirable. The action of mirtazapine is an antagonist of certain adrenergic and serotonin receptors, and, furthermore, the drug is used strong as antihistamine, and it is occasionally defined as a noradrenergic and specific serotonergic antidepressant (NaSSA). The comprehensive profile of mirtazapine gives more detailed information about nomenclature, formulae, elemental analysis, and appearance...
2018: Profiles of Drug Substances, Excipients, and related Methodology
https://www.readbyqxmd.com/read/29678259/newborn-screening-for-lysosomal-storage-disorders
#14
Sharon Anderson
Lysosomal storage disorders (LSDs) are a heterogeneous group of approximately 50 rare inherited metabolic conditions that result from enzyme deficiencies that interfere with lysosome function. Although often grouped together, there is great variability regarding age of onset, severity, treatment, and outcomes for each disorder and subtype. Currently, laboratory methods are available to test newborns for seven of these conditions. Although newborn screening programs remain state-based, each at a different phase of condition review and implementation, if newborn screening for LSDs has not yet been adopted by the state within which you practice, it likely will...
May 2018: Journal of Pediatric Health Care
https://www.readbyqxmd.com/read/29678174/age-and-gender-specific-distribution-of-metabolic-syndrome-components-in-east-china-role-of-hypertriglyceridemia-in-the-spect-china-study
#15
Boren Jiang, Yanjun Zheng, Yingchao Chen, Yi Chen, Qin Li, Chunfang Zhu, Ningjian Wang, Bing Han, Hualing Zhai, Dongping Lin, Yingli Lu
BACKGROUND: Chinese population are experiencing remarkably changes of economic and cultural environments. The present study was to examine the prevalence of metabolic syndrome (MetS) by age between genders and to investigate the current characteristics of MetS and its components in China. METHODS: SPECT-China is a population-based cross-sectional survey on Chinese adults aged ≥18 years in East China. A total of 10,441 Chinese residents participated in anthropometric and laboratory measurements...
April 20, 2018: Lipids in Health and Disease
https://www.readbyqxmd.com/read/29678161/an-unusually-high-frequency-of-scad-deficiency-caused-by-two-pathogenic-variants-in-the-acads-gene-and-its-relationship-to-the-ethnic-structure-in-slovakia
#16
Jana Lisyová, Ján Chandoga, Petra Jungová, Marcel Repiský, Mária Knapková, Martina Machková, Svetozár Dluholucký, Darina Behúlová, Jana Šaligová, Ľudmila Potočňáková, Miroslava Lysinová, Daniel Böhmer
BACKGROUND: Short-chain acyl-CoA dehydrogenase deficiency (SCADD) represents a rare autosomal recessive inborn metabolic disorder of mitochondrial β-oxidation of monocarboxylic acids. Clinical symptoms can vary from a severe life-threatening condition to an asymptomatic state, reported in the majority of cases. Since the expansion of newborn screenings, more than three hundred probands were admitted for molecular-genetic analysis, most selected because of elevated values of C4-acylcarnitine detected in newborn screenings in Slovakia...
April 20, 2018: BMC Medical Genetics
https://www.readbyqxmd.com/read/29677638/gestational-glucocorticoid-exposure-disrupts-glucose-homeostasis-that-is-accompanied-by-increased-endoglin-and-dpp-4-activity-instead-of-gsk-3-in-rats
#17
Olufunto O Badmus, Olugbenga S Michael, Saheed Rabiu, Lawrence A Olatunji
Gestational glucocorticoid (GC) treatment has been associated with cardiometabolic disorder (CMD) in offspring's in later life. Elevated dipeptidyl peptidase-4 (DPP-4) activity, endoglin and glycogen synthase kinase-3 (GSK-3) has also been implicated in the development of insulin resistance (IR) and/or vascular inflammation. We aimed to investigate the impact of GC exposure on glucose metabolism and the circulating levels of inflammatory biomarkers, DPP-4 activity and GSK-3 in pregnant rats. Pregnant Wistar rats received either vehicle or dexamethasone (DEX; 0...
April 13, 2018: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/29677309/vitamin-d-calcium-or-combined-supplementation-for-the-primary-prevention-of-fractures-in-community-dwelling-adults-us-preventive-services-task-force-recommendation-statement
#18
David C Grossman, Susan J Curry, Douglas K Owens, Michael J Barry, Aaron B Caughey, Karina W Davidson, Chyke A Doubeni, John W Epling, Alex R Kemper, Alex H Krist, Martha Kubik, Seth Landefeld, Carol M Mangione, Michael Silverstein, Melissa A Simon, Chien-Wen Tseng
Importance: Because of the aging population, osteoporotic fractures are an increasingly important cause of morbidity and mortality in the United States. Approximately 2 million osteoporotic fractures occurred in the United States in 2005, and annual incidence is projected to increase to more than 3 million fractures by 2025. Within 1 year of experiencing a hip fracture, many patients are unable to walk independently, more than half require assistance with activities of daily living, and 20% to 30% of patients will die...
April 17, 2018: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/29676870/-which-place-for-thiazide-and-thiazide-like-diuretics-in-patients-with-type-2-diabetes
#19
A J Scheen, J M Krzesinski
The use of thiazides as antihypertensive agents has been challenged because associated metabolic adverse events, including new-onset diabetes. However, these metabolic disturbances are less marked with low-dose of hydrochlorothiazide and with thiazide-like diuretics such as chlorthalidone and indapamide. In post hoc analyses of subgroups of patients with hypertension and type 2 diabetes, thiazide(-like) diuretics resulted in a significant reduction in cardiovascular events, all-cause mortality and hospitalization for heart failure compared to placebo...
April 2018: Revue Médicale de Liège
https://www.readbyqxmd.com/read/29676588/lysine-acetyltransferase-inhibitors-structure-activity-relationships-and-potential-therapeutic-implications
#20
Francesco Fiorentino, Antonello Mai, Dante Rotili
Lysine acetylation is a post-translational modification of both histone and nonhistone proteins that is catalyzed by lysine acetyltransferases and plays a key role in numerous biological contexts. The dysregulation of this enzyme activity is implicated in many human pathologies such as cancer, neurological and inflammatory disorders. Many lysine acetyltransferase inhibitors (KATi) have been developed so far, but there is still the need for new, more potent, metabolically stable and selective KATi as chemical tools for studying KAT biology and/or as potential therapeutic agents...
April 20, 2018: Future Medicinal Chemistry
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