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https://www.readbyqxmd.com/read/28318384/increased-adipose-and-muscle-insulin-sensitivity-without-changes-in-serum-adiponectin-in-young-female-collegiate-athletes
#1
Kaori Kitaoka, Mika Takeuchi, Ayaka Tsuboi, Satomi Minato, Miki Kurata, Shigehiro Tanaka, Tsutomu Kazumi, Keisuke Fukuo
BACKGROUND: Effects of endurance training on adipose insulin sensitivity in association with body composition, circulating adipokines, and markers of inflammation have been studied less in young Asian subjects. METHODS: Adipose insulin sensitivity/resistance was compared between 170 female Japanese collegiate athletes and 311 nonathletes (18-24 years), who underwent measurements of serum adipokines, markers of insulin sensitivity, inflammation, and dual-energy X-ray absorptiometry...
March 20, 2017: Metabolic Syndrome and related Disorders
https://www.readbyqxmd.com/read/28317183/defective-metal-organic-frameworks-incorporating-ir-based-metallo-ligands-sorption-and-dye-degradation-properties
#2
Li-Min Zheng, Kun Fan, Wei-Xuan Nie, Lu-Ping Wang, Chwen-Haw Liao, Song-Song Bao
Artificial control and engineering of metal-organic framework crystals with defects can endow them with suitable properties for application in gas storage, separation and catalysis. In this work, we synthesized a series of defective Ir-containing metal organic frameworks [Zn4(µ4-O)(Ir-A)2(1-x)(Ir-B)2x] (ZnIr-MOF-dx) by doping heterostructural linker Ir-BH3 into the parent [Zn4(µ4-O)(Ir-A)2] (ZnIr-MOF), where Ir-AH3 represents Ir(ppy-COOH)3 (ppyCOOH = 3-(pyridin-2-yl)benzoic acid) and Ir-BH3 is Ir(ppy-COOH)2(2-pyPO3H) (2-pyPO3H2 = 2-pyridylphosphonic acid)...
March 20, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28315381/alfa-helix-to-beta-sheet-transition-in-long-chain-poly-l-lysine-formation-of-alfa-helical-fibrils-by-poly-l-lysine
#3
Katarzyna Cieślik-Boczula
The temperature-induced α-helix to β-sheet transition in long-chain poly-l-lysine (PLL), accompanied by the gauche-to-trans isomerization of CH2 groups in the hydrocarbon side chains of Lys amino acid residues, and formation of β-sheet as well as α-helix fibrillar aggregates of PLL have been studied using Fourier-transform infrared (FT-IR) and vibrational circular dichroism (VCD) spectroscopy, and transmission electron microscopy (TEM). In a low-temperature alkaline water solution or in a methanol-rich water mixture, the secondary structure of PLL is represented by α-helical conformations with unordered and gauche-rich hydrocarbon side chains...
March 14, 2017: Biochimie
https://www.readbyqxmd.com/read/28314145/preparation-of-polyhedral-oligomeric-silsesquioxane-based-cross-linked-inorganic-organic-nanohybrid-as-adsorbent-for-selective-removal-of-acidic-dyes-from-aqueous-solution
#4
Jiawei Liu, Heng Yu, Qingmei Liang, Yanna Liu, Jiwei Shen, Quan Bai
A cross-linked polyhedral oligomeric silsesquioxane (POSS) nanohybrid is synthesized through Schiff base chemistry by using octa-amino POSS as building blocks and glutaraldehyde as dual functional reagent. The obtained nanohybrid is characterized by FT-IR, solid-state (29)Si NMR, SEM, TEM, TGA and N2 adsorption-desorption isotherm, and the results demonstrate the successful cross-linkage between POSS molecules, forming block-like irregular nanoparticles with a specific surface area of 42.8m(2)g(-1). As a novel solid-phase adsorbent, cross-linked POSS nanohybrid exhibits selective adsorption properties for acidic dyes, i...
March 7, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28302472/erk1-and-erk2-activation-modulates-diet-induced-obesity-in-mice
#5
Amira Sayed Khan, Selvakumar Subramaniam, Gado Dramane, Douadi Khelifi, Naim Akhtar Khan
Obesity is a worldwide problem, and dietary lipids play an important role in its pathogenesis. Recently, Erk1 knock-out (ERK1(-/-)) mice have been shown to exhibit low preference for dietary fatty acids. Hence, we maintained Erk1(-/-) mice on a high-fat diet (HFD) to assess the implication of this mitogen-activated protein (MAP) kinase in obesity. The Erk1(-/-) mice, fed the HFD, were more obese than wild-type (WT) animals, fed the same diet. Erk1(-/-) obese mice gained more fat and liver mass than WT obese animals...
March 13, 2017: Biochimie
https://www.readbyqxmd.com/read/28300538/improved-synthesis-of-glycine-taurine-and-sulfate-conjugated-bile-acids-as-reference-compounds-and-internal-standards-for-esi-ms-ms-urinary-profiling-of-inborn-errors-of-bile-acid-synthesis
#6
Elena Donazzolo, Antonina Gucciardi, Daniela Mazzier, Cristina Peggion, Paola Pirillo, Mauro Naturale, Alessandro Moretto, Giuseppe Giordano
Bile acid synthesis defects are rare genetic disorders characterized by a failure to produce normal bile acids (BAs), and by an accumulation of unusual and intermediary cholanoids. Measurements of cholanoids in urine samples by mass spectrometry are a gold standard for the diagnosis of these diseases. In this work improved methods for the chemical synthesis of 30 BAs conjugated with glycine, taurine and sulfate were developed. Diethyl phosphorocyanidate (DEPC) and diphenyl phosphoryl azide (DPPA) were used as coupling reagents for glycine and taurine conjugation...
March 11, 2017: Chemistry and Physics of Lipids
https://www.readbyqxmd.com/read/28300221/beneficial-effects-of-paeoniflorin-on-non-alcoholic-fatty-liver-disease-induced-by-high-fat-diet-in-rats
#7
Zhihong Ma, Li Chu, Hongying Liu, Weijie Wang, Jieru Li, Wenzao Yao, Jianfeng Yi, Yue Gao
Non-alcoholic fatty liver disease (NAFLD) is the most prevalent form of chronic liver diseases. This study sought to evaluate the insulin-sensitizing effect of paeoniflorin (PF) on high-fat diet-induced NAFLD and possible molecular mechanisms. Male Sprague Dawley rats were fed a high-fat diet (HFD) for 10 weeks to establish the NAFLD model, and PF (20 mg/kg/d) was gavaged to the NAFLD rats for another four weeks. Our results demonstrated that HFD resulted in hepatocellular ballooning, micro-/macrovesicular steatosis, and oxidative stress in the liver, accompanied by increased serum total cholesterol (TC), triglyceride (TG), free fatty acid (FFA), alanine aminotransferase (ALT), and aspartate aminotransferase (AST) levels and homeostasis model of insulin resistance (HOMA-IR) index...
March 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28297698/magnesium-replacement-improves-the-metabolic-profile-in-obese-and-pre-diabetic-patients-with-mild-to-moderate-chronic-kidney-disease-a-3-month-randomised-double-blind-placebo-controlled-study
#8
Omer Toprak, Huseyin Kurt, Yasin Sarı, Cihat Şarkış, Halil Us, Ali Kırık
BACKGROUND/AIMS: Magnesium is an essential mineral for many metabolic functions. There is very little information on the effect of magnesium supplementation on metabolic profiles of chronic kidney disease (CKD) patients. The aim of this study was to assess the influence of magnesium supplementation on metabolic profiles of pre-diabetic, obese and mild-to-moderate CKD patients with hypomagnesemia. METHODS: A total of 128 hypomagnesemic, pre-diabetic and obese patients with an estimated glomerular filtration rate between 90 and 30 ml/min/1...
March 13, 2017: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/28296232/inhibitors-of-soluble-epoxide-hydrolase-minimize-ischemia-reperfusion-induced-cardiac-damage-in-normal-hypertensive-and-diabetic-rats
#9
Oliul Islam, Prashanth Patil, Sumanta K Goswami, Rema Razdan, Mohammed N Inamdar, Mohammed Rizwan, Jubin Mathew, Bora Inceoglu, Kin S Stephen Lee, Sung H Hwang, Bruce D Hammock
AIM: We designed a study to evaluate the cardioprotective effect of two soluble epoxide hydrolase (sEH) inhibitors, 1-(1-propanoylpiperidin-4-yl)-3-(4-trifluoromethoxy)phenyl)urea (TPPU) and trans-4-{4-[3-(4-trifluoromethoxyphenyl)-ureido]cyclohexyloxy}benzoic acid (t-TUCB), in ischemia-reperfusion (IR) model. METHODS: Cardioprotective effects of the sEH inhibitors were evaluated against IR-induced myocardial damage in hearts from normal, hypertensive and diabetic rats using Langendorff's apparatus...
March 15, 2017: Cardiovascular Therapeutics
https://www.readbyqxmd.com/read/28294623/characterization-of-the-physicochemical-properties-of-%C3%AE-cyclodextrin-divinyl-sulfone-polymer-carrier-bile-acid-systems
#10
Mohamed H Mohamed, Chen Wang, Kerry M Peru, John V Headley, Lee D Wilson
Herein, we report on the systematic design and characterization of cross-linked polymer carriers containing β-cyclodextrin (β-CD) and divinyl sulfone (DVS). The polymer carriers were prepared at variable feed ratios (β-CD-DVS; 1:1, 1:2, 1:3 and 1:6) and characterized using spectroscopy (IR, 1H solution NMR, 13C CP-MAS solids NMR), thermogravimetric analysis (TGA), scanning electron microscopy (SEM) and a dye decolorization method using phenolphthalein. Uptake studies were carried out at pH 9.00 for the polymer carriers using single component bile acids (cholic acid; deoxycholic acid; glycodeoxycholic acid; and taurodeoxycholic acid)...
March 15, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28294616/antimicrobial-metabolites-from-streptomyces-sp-sn0280
#11
Hui Tian, Jamil Shafi, Mingshan Ji, Yuhui Bi, Zhiguo Yu
One new indole derivative, chloroindole (1), one new diketone, streptoone A (2), two new ketonic acids, streptoones B (3) and C (4), and one known macrolide antibiotic, X-14952B (5), were isolated from Streptomyces sp. SN0280. Extensive NMR, HRESIMS, and IR analysis was used to elucidate their structures. Streptoone A (2) displayed antibacterial activity (MIC value of 7.81 μg/mL) against Clavibater michiganensis, comparable with the positive control streptomycin (MIC value of 7.81 μg/mL). Streptoone B (3) showed antifungal activity (MIC value of 15...
March 15, 2017: Journal of Natural Products
https://www.readbyqxmd.com/read/28294439/coordination-of-tetravalent-actinides-an-th-iv-u-iv-np-iv-pu-iv-with-dota-from-dimers-to-hexamers
#12
Christelle Tamain, Thomas Dumas, Christoph Hennig, Philippe Guilbaud
Three tetravalent actinide (An(IV)) hexanuclear clusters with the octahedral core [An6(OH)4O4]12+ (An(IV) = U(IV), Np(IV), Pu(IV)) were structurally characterized in solid state and in aqueous solution using single crystal X-ray diffraction, X-ray absorption, IR, Raman and UV-Visible spectroscopy. The observed structure, [An6(OH)4O4(H2O)8(HDOTA)4].HCl/HNO3.nH2O (An = U (I), Np (II), Pu (III)), consists of a An(IV) hexanuclear pseudo-octahedral cluster stabilized by DOTA (1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid) ligands...
March 10, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28294264/iron-cobalt-bimetal-oxide-nanorods-as-efficient-and-robust-water-oxidation-catalysts
#13
Xichen Zhou, Jingwei Huang, Fuming Zhang, Yukun Zhao, Yan Zhang, Yong Ding
Cobalt-based oxides are considered as potential water oxidation catalysts for future artificial photosynthetic systems because of their high abundance, strong stability and efficient performance. Herein, a series of cobalt-based oxides, MnCo3-nO4 (M = Mn, Fe, Co) samples, were synthesized through changing the metal sources by a low-temperature coprecipitation method. These catalysts were investigated under photochemical and electrochemical water oxidation conditions. And they all exhibited efficient activity for water oxidation under alkaline, acidic and neutral conditions under visible light irradiation...
March 15, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28292465/lipopolysaccharide-and-double-stranded-viral-rna-mediate-insulin-resistance-and-increase-system-a-amino-acid-transport-in-human-trophoblast-cells-in%C3%A2-vitro
#14
Stella Liong, Martha Lappas
INTRODUCTION: Inflammation and underlying low-grade maternal infection can impair insulin signalling and upregulate nutrient transport in the placenta which contribute to fetal overgrowth associated with GDM and/or obese pregnancies. There are, however, no studies on the role of infection on placental nutrient transport in pregnancies complicated by GDM and/or obesity. Thus, the aims of this study were to determine the effect of the bacterial product lipopolysaccharide (LPS) or the viral dsRNA analogue polyinosinic:polycytidylic acid (poly(I:C)) on the insulin signalling pathway and amino acid transport in primary human trophoblast cells...
March 2017: Placenta
https://www.readbyqxmd.com/read/28292015/evaluation-of-antioxidant-and-anticancer-activity-of-copper-oxide-nanoparticles-synthesized-using-medicinally-important-plant-extracts
#15
Dilaveez Rehana, D Mahendiran, R Senthil Kumar, A Kalilur Rahiman
Copper oxide (CuO) nanoparticles were synthesized by green chemistry approach using different plant extracts obtained from the leaves of Azadirachta indica, Hibiscus rosa-sinensis, Murraya koenigii, Moringa oleifera and Tamarindus indica. In order to compare their efficiency, the same copper oxide nanoparticles was also synthesized by chemical method. Phytochemical screening of the leaf extracts showed the presence of carbohydrates, flavonoids, glycosides, phenolic compounds, saponins, tannins, proteins and amino acids...
March 10, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28289606/simple-efficient-and-economical-methods-for-isolation-and-estimation-of-novel-isoflavone-using-rp-hplc
#16
Afroze Alam, Kamlesh Kumar Naik, Navneet Kumar Upadhaya, Shailendra Kumar, K L Dhar
The study was undertaken to develop a simplified procedure for the isolation of bioactive isoflavone from Iris kashmiriana, using a direct method of isolation, avoiding the use of chromatographic techniques. The compound was isolated by commercially viable procedure. The extraction of powdered drug (500 g) was done with petroleum ether (60-80) using a Soxhlet apparatus (24 h run). The petroleum ether extract (gums and resins 2.13 g) was obtained and the marc (400 g) was subjected to extraction with 95% methanol using a Soxhlet apparatus (24 h run)...
2017: MethodsX
https://www.readbyqxmd.com/read/28288376/facile-fabrication-of-dy2sn2o7-sno2-nanocomposites-as-an-effective-photocatalyst-for-degradation-and-removal-of-organic-contaminants
#17
Sahar Zinatloo-Ajabshir, Maryam Sadat Morassaei, Masoud Salavati-Niasari
Dy2Sn2O7-SnO2 nanocomposites were synthesized through a facile way utilizing propane-1,2-diol as novel polymerization agent and trimesic acid as new stabilization agent. Effects of different polymerization agents, calcination temperature and various stabilization agents on the size and shape of the Dy2Sn2O7-SnO2 nanocomposites were investigated. It was found that changing these synthesis factors has great role in controlling size and shape of Dy2Sn2O7-SnO2 nanocomposites. The as-produced Dy2Sn2O7-SnO2 nanostructures were analyzed using FT-IR, HRTEM, DR-UV-vis, EDS, XRD, and FESEM...
March 6, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28285929/the-effect-of-increasing-body-mass-index-on-cardio-metabolic-risk-and-biomarkers-of-oxidative-stress-and-inflammation-in-nascent-metabolic-syndrome
#18
Roma Pahwa, Beverley Adams-Huet, Ishwarlal Jialal
The effect of BMI defined obesity on cardio-metabolic features and biomarkers of oxidative stress and inflammation in patients with nascent metabolic Syndrome (MetS) is poorly defined. Hence the aim of this study was to examine the effect of increasing obesity on the cardio metabolic risk profile, pro-oxidant state and pro-inflammatory features in nascent MetS patients without Diabetes or CVD. MetS was diagnosed by ATPIII criteria using waist circumference (WC) as the measure of adiposity. Patients (n=58) were stratified into overweight, obese and extreme obesity groups using BMI cut offs of 25-29...
February 27, 2017: Journal of Diabetes and its Complications
https://www.readbyqxmd.com/read/28285609/breast-milk-fatty-acid-composition-and-fatty-acid-intake-of-lactating-mothers-in-south-korea
#19
Hyesook Kim, Sujeong Kang, Byung-Moon Jung, Hyunju Yi, Ji A Jung, Namsoo Chang
The aim of this study was to determine the fatty acid (FA) composition of breast milk, and its association with mothers' FA intake. Milk samples were obtained from 238 healthy lactating women who volunteered to participate in the Human Milk Micronutrients Analysis Research. Dietary intake during lactation was assessed using a 3-d food record, and fat content and FA composition of the breast milk samples were analysed by IR spectrometry using MilkoScan FT2 and GC flame ionisation detector, respectively. The fat content was 3·31 (sd 1·41) g/100 ml breast milk...
March 13, 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/28284937/characterization-of-bioactive-chitosan-and-sulfated-chitosan-from-doryteuthis-singhalensis-ortmann-1891
#20
Pasiyappazham Ramasamy, Namasivayam Subhapradha, Thangadurai Thinesh, Joseph Selvin, Kanagaraj Muthamizh Selvan, Vairamani Shanmugam, Annaian Shanmugam
Chitosan was extracted from the pen of squid Doryteuthis singhalensis and was characterized using FT-IR, NMR, CHN, SEM and DSC analysis. Purified chitosan was sulfated with chlorosulfonic acid in N,N-dimethylformamid and the added sulfate group was confirmed with FT-IR analysis. The molecular weight and degree of deacetylation (DDA) of chitosan was found 226.6kDa and 83.76% respectively. Chitosan exhibited potent antioxidant activity evidenced by reducing power, chelating ability on ferrous ions and scavenging activity on DPPH, superoxide and hydroxyl radicals...
March 8, 2017: International Journal of Biological Macromolecules
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