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https://www.readbyqxmd.com/read/28223285/butyrate-regulates-liver-mitochondrial-function-efficiency-and-dynamic-in-insulin-resistant-obese-mice
#1
Maria Pina Mollica, Giuseppina Mattace Raso, Gina Cavaliere, Giovanna Trinchese, Chiara De Filippo, Serena Aceto, Marina Prisco, Claudio Pirozzi, Francesca Di Guida, Adriano Lama, Marianna Crispino, Diana Tronino, Paola Di Vaio, Roberto Berni Canani, Antonio Calignano, Rosaria Meli
Fatty liver, oxidative stress, and mitochondrial dysfunction are key pathophysiological features of insulin resistance and obesity. Butyrate, produced by fermentation in the large intestine by gut microbiota, and its synthetic derivative, the N-(1-carbamoyl-2-phenyl-ethyl) butyramide, FBA, have been demonstrated to be protective against insulin resistance and fatty liver.Here, hepatic mitochondria were identified as the main target of the beneficial effect of both butyrate-based compounds in reverting insulin resistance and fat accumulation in diet induced obese mice...
February 21, 2017: Diabetes
https://www.readbyqxmd.com/read/28222781/the-complex-interplay-between-clinical-and-person-centered-diabetes-outcomes-in-the-two-genders
#2
Maria Chiara Rossi, Giuseppe Lucisano, Basilio Pintaudi, Angela Bulotta, Sandro Gentile, Marco Scardapane, Soren Eik Skovlund, Giacomo Vespasiani, Antonio Nicolucci
BACKGROUND: New approaches to cope with clinical and psychosocial aspects of type 2 diabetes (T2DM) are needed; gender influences the complex interplay between clinical and non-clinical factors. We used data from the BENCH-D study to assess gender-differences in terms of clinical and person-centered measures in T2DM. METHODS: Clinical quality of care indicators relative to control of HbA1c, lipid profile, blood pressure, and BMI were derived from electronic medical records...
February 21, 2017: Health and Quality of Life Outcomes
https://www.readbyqxmd.com/read/28222398/isolation-of-a-new-resorcinolic-lipid-from-mangifera-zeylanica-hook-f-bark-and-its-cytotoxic-and-apoptotic-potential
#3
Meran Keshawa Ediriweera, Kamani Hemamala Tennekoon, Sameera Ranganath Samarakoon, Achyut Adhikari, Ira Thabrew, E Dilip de Silva
Mangifera zeylanica is a plant endemic to Sri Lanka and its bark has been used in traditional medicine to treat some cancers. This study was aimed to isolate potentially cytotoxic compound/s from the hexane extract of the bark of M. zeylanica by bio-activity guided fractionation. The structure of the isolated compound (1) was elucidated using (1)H, (13)C NMR and mass spectrometric techniques. Compound 1 was identified as a new resorcinolic lipid (5-((8Z, 11Z, 14Z)-hexatriaconta-8, 11, 14-trienyl) benzene-1,3-diol)...
February 18, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28216053/hypoglycemic-drugs-induce-antioxidant-aldehyde-dehydrogenase-activity-and-remain-high-in-patients-with-glycemic-control-in-type-2-diabetes
#4
Alejandra Picazo, Angélica S Jiménez-Osorio, Porfirio Zúñiga-Mejía, José Pedraza-Chaverri, Adriana Monroy, M Eunice Rodríguez-Arellano, Diana Barrera-Oviedo
The antioxidant system results essential to control and prevent lipid peroxidation due to stress damage in type 2 diabetes. An example is aldehyde dehydrogenase (ALDH), an enzyme that is involved in the detoxification of aldehydes formed during lipid peroxidation. This study was conducted to evaluate ALDH activity and to determine their association with hypoglycemic treatment in type 2 diabetes patients. The study population consisted of 422 Mexican subjects: a control group and type 2 diabetes patients. Type 2 diabetes patients were re-classified as those with or without hypoglycemic treatment and those with or without glycemic control (according to glycated hemoglobin (HbA1c))...
February 16, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28210396/multivesicular-emulsion-ceramide-containing-moisturizers-an-evaluation-of-their-role-in-the-management-of-common-skin-disorders
#5
REVIEW
Joshua A Zeichner, James Q Del Rosso
Proper stratum corneum function plays a pivotal role in maintenance of skin health, and improper function leads to skin disease. The stratum corneum is comprised of corneocytes surrounded by intercelluar lipids including ceramides, free fatty acids, and cholesterol. Ceramide predominant moisturizers have become a mainstay of treatment of skin disease. New technologies for delivery of ceramides include multivesicular emulsions, which deposit ceramides in a timerelease manner for a continuous rather than burst effect...
December 2016: Journal of Clinical and Aesthetic Dermatology
https://www.readbyqxmd.com/read/28209487/lipoxin-a4-suppresses-osteoclastogenesis-in-raw264-7-cells-and-prevents-ovariectomy-induced-bone-loss
#6
Changyu Liu, Hanfeng Guan, Cong Cai, Feng Li, Jun Xiao
Lipoxin A4 (LXA4; 5S, 6R, 15Strihydroxy- 7,9,13-trans-11-eicosatetraenoic acid) is a metabolic product of arachidonic acid under the action of lipoxidase. This lipid molecule plays important roles in several biological functions, especially inflammatory processes. In vivo, LXA4 regulates the inflammatory response through several signaling pathways. Its mechanism suggests that it might have an effect on osteoclastogenesis and bone loss. Using both in vitro and in vivo studies, it was here observed that LXA4 could significantly inhibit the formation and function of osteoclasts and these effects could be blocked by Boc-2, the specific inhibitor of FPR2/ALX (the receptor of LXA4)...
February 13, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28209400/multidrug-resistant-enterococcal-infections-new-compounds-novel-antimicrobial-therapies
#7
REVIEW
Roel M van Harten, Rob J L Willems, Nathaniel I Martin, Antoni P A Hendrickx
Over the past two decades infections due to antibiotic-resistant bacteria have escalated world-wide, affecting patient morbidity, mortality, and health care costs. Among these bacteria, Enterococcus faecium and Enterococcus faecalis represent opportunistic nosocomial pathogens that cause difficult-to-treat infections because of intrinsic and acquired resistance to a plethora of antibiotics. In recent years, a number of novel antimicrobial compound classes have been discovered and developed that target Gram-positive bacteria, including E...
February 13, 2017: Trends in Microbiology
https://www.readbyqxmd.com/read/28208246/combined-proteome-and-eicosanoid-profiling-approach-for-revealing-implications-of-human-fibroblasts-in-chronic-inflammation
#8
Ammar Tahir, Andrea Bileck, Besnik Muqaku, Laura Niederstaetter, Dominique Kreutz, Rupert L Mayer, Denise Wolrab, Samuel M Meier, Astrid Slany, Christopher Gerner
During inflammation, proteins and lipids act in a concerted fashion, calling for combined analyses. Fibroblasts are powerful mediators of chronic inflammation. However, little is known about eicosanoid formation by human fibroblasts. The aim of this study was to analyze the formation of the most relevant inflammation mediators including proteins and lipids in human fibroblasts upon inflammatory stimulation and subsequent treatment with dexamethasone, a powerful antiphlogistic drug. Label-free quantification was applied for proteome profiling, while an in-house established data-dependent analysis method based on high-resolution mass spectrometry was applied for eicosadomics...
February 7, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28208120/cardiovascular-complications-of-hiv-infection
#9
Marshall J Glesby
HIV-infected individuals are at increased risk for cardiovascular events. Widely used cardiovascular disease (CVD) risk calculators to determine indications for statin treatment are not well validated for use in the HIV-infecte population. Some experts advocate including HIV infection as an independent risk factor for CVD. The effects of antiretroviral therapy on lipid profiles and the potentially increased risk for cardiovascular events must be taken into account when selecting treatment for HIV-infected individuals...
December 2017: Topics in Antiviral Medicine
https://www.readbyqxmd.com/read/28207427/progression-and-characterization-of-the-accelerated-atherosclerosis-in-iliac-artery-of-new-zealand-white-rabbits-effect-of-simvastatin
#10
Jitendra S Kanshana, Vivek Khanna, Vishal Singh, Manish Jain, Ankita Misra, Sachin Kumar, Mariya Farooqui, Manoj K Barthwal, Madhu Dikshit
OBJECTIVE: Although atherosclerosis is described in New Zealand White rabbit's iliac artery, yet details of time-dependent atherosclerosis progression are not well known. Further, a well characterized accelerated model of atherosclerosis is also required for the screening of candidate drugs to target specific steps of atherosclerosis development. The present study extensively characterizes the time-dependent plaque composition and functional responses of the atherosclerosis in rabbit iliac artery and its modification by simvastatin...
February 14, 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/28195079/update-on-etiopathogenesis-and-treatment-of-acne
#11
REVIEW
Yasmeen Jabeen Bhat, Insha Latief, Iffat Hassan
Acne, the most common skin disease, is a disorder of pilosebaceous units that affects adolescents mainly and adults occasionally. The pathogenesis is multifactorial. Besides genetic predisposition, other major factors include the action of androgens, pro-inflammatory lipids acting as ligands of peroxisome proliferator-activated receptors in the sebocytes, toll-like receptor-2 acting on keratinocytes, recognition of pathogen-associated molecular patterns, cytokines, chemokines, inflammasomes, neuroendocrine regulatory mechanisms, diet and other pro-inflammatory targets implicated in the activation of immune detection and response...
February 7, 2017: Indian Journal of Dermatology, Venereology and Leprology
https://www.readbyqxmd.com/read/28194718/employing-central-composite-design-for-evaluation-of-biomass-production-by-fusarium-venenatum-in-vivo-antioxidant-and-antihyperlipidemic-properties
#12
Asha Byju Thomas, Trupti Dattatray Shetane, Ranu Goutam Singha, Rabindra K Nanda, Sushilkumar S Poddar, Ajinath Shirsat
The present study deals with the cost effective production of biomass from Fusarium venenatum using different carbon sources (cane sugar, brown sugar, malt and fructose). Optimization of selected carbon sources and seed size using Central Composite Response Surface Design (CCRSD) indicated that sucrose (1.64 g/100 mL) and seed size (10% v/v) were optimal in maximizing biomass yield (0.5602 g/100 mL, p < 0.0001) and protein yield (49.99%, p < 0.01) of Fusarium venenatum. The acetonitrile and methanolic extracts of biomass showed promising antioxidant activity (DPPH assay, 59...
February 13, 2017: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/28191696/a-new-approach-in-stem-cell-research-exosomes-their-mechanism-of-action-via-cellular-pathways
#13
REVIEW
Burak Derkus, Kaan C Emregul, Emel Emregul
Exosomes are nano-sized vesicles surrounded by a lipid membrane, which tend to be secreted towards extra-cellular environments. Despite being defined as vesicles involved in excretion of molecular wastes by Rose Johnstone in the 1970's, further studies revealed them to be effective in various biological processes such as cancer development, regulation of the immune system, intercellular communication, stem cell biology and tissue/organ regeneration. Although many studies dealing with the role of exosomes in stem cell differentiation and the use of exosomes isolated from stem cells, for treatment of several diseases have been published, the involved mechanisms remain largely unknown...
February 13, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28188911/a-rational-approach-to-elucidate-human-monoamine-oxidase-molecular-selectivity
#14
Giuseppe Felice Mangiatordi, Domenico Alberga, Leonardo Pisani, Domenico Gadaleta, Daniela Trisciuzzi, Roberta Farina, Andrea Carotti, Gianluca Lattanzi, Marco Catto, Orazio Nicolotti
Designing highly selective human monoamine oxidase (hMAO) inhibitors is a challenging goal on the road to a more effective treatment of depression and anxiety (inhibition of hMAO-A isoform) as well as neurodegenerative diseases (inhibition of hMAO-B isoform). To uncover the molecular rationale of hMAOs selectivity, two recently prepared 2H-chromene-2-ones, namely compounds 1 and 2, were herein chosen as molecular probes being highly selective toward hMAO-A and hMAO-B, respectively. We performed molecular dynamics (MD) studies on four different complexes, cross-simulating one at a time the two hMAO-isoforms (dimer embedded in a lipid bilayer) with the two considered probes...
February 7, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28188802/crosstalk-of-metabolic-factors-and-neurogenic-signaling-in-adult-neurogenesis-implication-of-metabolic-regulation-for-mental-and-neurological-diseases
#15
Chong Gao, Qi Wang, Sookja K Chung, Jiangang Shen
Metabolic disorders like diabetes and obesity are commonly companied with neurological diseases and psychiatric disorders. Accumulating evidences indicated that cellular metabolic factors affect adult neurogenesis and have modulating effects on neurodegenerative disorders and psychiatric diseases. Adult neurogenesis contains multiple steps including proliferation of neural stem cells, lineage commitments of neural progenitor cells, maturation into functional neurons, and integration into neuronal network. Many intrinsic and extrinsic factors produced from neural stem/progenitor cells and their microenvironment or neurogenic niche take roles in modulating neurogenesis and contribute to the brain repair and functional recoveries in many neurological diseases and psychiatric disorders...
February 7, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/28185575/integration-of-metabolomics-lipidomics-and-clinical-data-using-a-machine-learning-method
#16
Animesh Acharjee, Zsuzsanna Ament, James A West, Elizabeth Stanley, Julian L Griffin
BACKGROUND: The recent pandemic of obesity and the metabolic syndrome (MetS) has led to the realisation that new drug targets are needed to either reduce obesity or the subsequent pathophysiological consequences associated with excess weight gain. Certain nuclear hormone receptors (NRs) play a pivotal role in lipid and carbohydrate metabolism and have been highlighted as potential treatments for obesity. This realisation started a search for NR agonists in order to understand and successfully treat MetS and associated conditions such as insulin resistance, dyslipidaemia, hypertension, hypertriglyceridemia, obesity and cardiovascular disease...
November 22, 2016: BMC Bioinformatics
https://www.readbyqxmd.com/read/28185213/hyperlipoproteinaemia-a-apheresis-and-emerging-therapies
#17
Anja Vogt
A high level of lipoprotein(a) (Lp(a)) is recognized as an independent and additional cardiovascular risk factor contributing to the risk of early onset and progressive course of cardiovascular disease (CVD). All lipid lowering medications in use mainly lower low density lipoprotein-cholesterol (LDL-c) with no or limited effect on levels of Lp(a). Niacin, the only component lowering Lp(a), is firstly often poorly tolerated and secondly not available anymore in many countries. A level of <50 mg/dl was recommended recently as the cut off level for clinical use and decision making...
February 9, 2017: Clinical Research in Cardiology Supplements
https://www.readbyqxmd.com/read/28180946/new-developments-and-directions-in-the-clinical-application-of-the-echinocandins
#18
REVIEW
C C Chang, M A Slavin, S C-A Chen
The echinocandins-caspofungin, anidulafungin and micafungin-are semi-synthetic cyclic hexapeptide antimicrobial agents with modified N-linked acyl lipid side chains which anchor the compounds to the phospholipid bilayer of the fungal cell membrane, thereby inhibiting synthesis of fungal cell wall glucan. Over the last 10 years, echinocandins have become the first-line antifungal treatment of candidaemia and other forms of invasive candidiasis (IC). Echinocandins are generally well tolerated, but their use is limited by their requirement for daily intravenous dosing, lack of oral formulation and limited spectrum...
February 8, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/28179013/reac-technology-as-optimizer-of-stallion-spermatozoa-liquid-storage
#19
Fiammetta Berlinguer, Valeria Pasciu, Sara Succu, Ignazio Cossu, Sabrina Caggiu, Daniela Addis, Alessandro Castagna, Vania Fontani, Salvatore Rinaldi, Eraldo Sanna Passino
BACKGROUND: REAC technology (acronym for Radio Electric Asymmetric Conveyor) is a technology platform for neuro and bio modulation. It has already proven to optimize the ions fluxes at the molecular level and the molecular mechanisms driving cellular asymmetry and polarization. METHODS: This study was designed to verify whether this technology could extend spermatozoa life-span during liquid storage, while preserving their functions, DNA integrity and oxidative status...
February 8, 2017: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/28178994/doxycycline-attenuates-breast-cancer-related-inflammation-by-decreasing-plasma-lysophosphatidate-concentrations-and-inhibiting-nf-%C3%AE%C2%BAb-activation
#20
Xiaoyun Tang, Xianyan Wang, Yuan Y Zhao, Jonathan M Curtis, David N Brindley
BACKGROUND: We previously discovered that tetracyclines increase the expression of lipid phosphate phosphatases at the surface of cells. These enzymes degrade circulating lysophosphatidate and therefore doxycycline increases the turnover of plasma lysophosphatidate and decreases its concentration. Extracellular lysophosphatidate signals through six G protein-coupled receptors and it is a potent promoter of tumor growth, metastasis and chemo-resistance. These effects depend partly on the stimulation of inflammation that lysophosphatidate produces...
February 8, 2017: Molecular Cancer
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