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https://www.readbyqxmd.com/read/29137101/analysis-of-islet-beta-cell-functions-and-their-correlations-with-liver-dysfunction-in-patients-with-neonatal-intrahepatic-cholestasis-caused-by-citrin-deficiency-niccd
#1
Chun-Ting Lu, Jing Yang, Si-Min Huang, Lie Feng, Ze-Jian Li
Neonatal intrahepatic cholestasis caused by citrin deficiency (NICCD) primarily manifests in neonates or infants with hepatomegaly, liver dysfunction, and hypoglycemia. This study investigated the functions of islet beta cells and their correlations with liver dysfunction in NICCD patients.We retrospectively analyzed clinical data on liver function and islet beta cell functions for 36 patients diagnosed with NICCD and 50 subjects as the control group. The NICCD group had significantly higher total bilirubin (TBIL), direct bilirubin (DBIL), alanine aminotransferase (ALT), aspartate amino transferase (AST), gamma-glutamyl transpeptidase (GGT), alkaline phosphatase (ALP) and alpha-fetoprotein (AFP) levels and albumin/globulin ratio (A/G) (P < ...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29131611/synthesis-and-in-vitro-evaluation-of-monodisperse-amino-functional-polyester-dendrimers-with-rapid-degradability-and-antibacterial-properties
#2
Patrik Stenström, Erik Hjort, Yuning Zhang, Oliver C J Andrén, Simon Guette-Marquet, Marianne Schultzberg, Michael Malkoch
Amine functional polymers, especially cationically charged, are interesting biomacromolecules for several reasons including easy cell membrane entrance, their ability to escape endosomes through the proton sponge effect, spontaneous complexation and delivery of drugs and siRNA and simple functionalization in aqueous solutions. Dendrimers, a subclass of precision polymers, are monodisperse and exhibit a large and exact number of peripheral end groups in relation to their size and have shown promise in drug delivery, biomedical imaging and as anti-viral agents...
November 13, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/29077023/design-of-tail-clamp-peptide-nucleic-acid-tethered-with-azobenzene-linker-for-sequence-specific-detection-of-homopurine-dna
#3
Shinjiro Sawada, Toshifumi Takao, Nobuo Kato, Kunihiro Kaihatsu
DNA carries genetic information in its sequence of bases. Synthetic oligonucleotides that can sequence-specifically recognize a target gene sequence are a useful tool for regulating gene expression or detecting target genes. Among the many synthetic oligonucleotides, tail-clamp peptide nucleic acid (TC-PNA) offers advantages since it has two homopyrimidine PNA strands connected via a flexible ethylene glycol-type linker that can recognize complementary homopurine sequences via Watson-Crick and Hoogsteen base pairings and form thermally-stable PNA/PNA/DNA triplex structures...
October 27, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29056891/polygala-tenuifolia-extract-inhibits-lipid-accumulation-in-3t3-l1-adipocytes-and-high-fat-diet-induced-obese-mouse-model-and-affects-hepatic-transcriptome-and-gut-microbiota-profiles
#4
Chun-Chung Wang, Jui-Hung Yen, Yi-Cheng Cheng, Chia-Yu Lin, Cheng-Ta Hsieh, Rung-Jiun Gau, Shu-Jiau Chiou, Hwan-You Chang
Obesity, the excessive accumulation of lipids in the body, is closely associated with many prevalent human disorders. Continued efforts to identify plant extracts that exhibit anti-obesity effects have drawn much attention. This study investigated whether a Polygala tenuifolia extract (PTE) possesses anti-obesity activity and how PTE may affect liver gene expression and gut microbiota. We used 3T3-L1 adipocytes and a high-fat diet-induced obese mouse model to determine the effects of PTE on lipid accumulation...
2017: Food & Nutrition Research
https://www.readbyqxmd.com/read/29050942/low-dose-administration-of-bisphenol-a-induces-liver-toxicity-in-adult-rats
#5
Sohrab Kazemi, Seydeh Narges Mousavi Kani, Leyla Rezazadeh, Mahdi Pouramir, Maryam Ghasemi-Kasman, Ali Akbar Moghadamnia
BACKGROUND: Bisphenol A (BPA) is one of the most widely used chemicals, often used in epoxy resins, health products and colors. This study aims to investigate the effect of various doses of BPA on hepatotoxicity in rats. METHOD: This experimental study was conducted using 20 male adult Wistar rats older than 2 months weighing 150-200 g. (5, 25 and 125 μg/kg) BPA was administered by gavage for 35 consecutive days. The animals were weighed at the beginning and the end of the experiment...
December 9, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29018486/serum-and-liver-tissue-metabonomic-study-on-fatty-liver-in-rats-induced-by-high-fat-diet-and-intervention-effects-of-traditional-chinese-medicine-qushi-huayu-decoction
#6
Xiao-Jun Gou, Qin Feng, Lin-Lin Fan, Jian Zhu, Yi-Yang Hu
Qushi Huayu Decoction (QSHY), clinically derived, consists of five crude drugs, commonly used in treating fatty liver in a clinical setting. However, little is known about its metabolomics study. Herein, the serum and liver tissue metabolomics approach, based on gas chromatography coupled to spectrometry (GC/MS), was employed to evaluate the efficacy and the mechanism underlying QSHY in a rat model of high-fat diet-induced fatty liver. With pattern recognition analysis of serum and liver tissue metabolite profile, a clear separation of model group and control group was acquired for serum and liver tissue samples, respectively...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28959247/microbiome-metabolome-responses-to-a-high-grain-diet-associated-with-the-hind-gut-health-of-goats
#7
Shiyu Tao, Ping Tian, Yanwen Luo, Jing Tian, Canfeng Hua, Yali Geng, Rihua Cong, Yingdong Ni, Ruqian Zhao
Studies on the effect of a high-concentrate (HC) diet on the hindgut microbiota and metabolome of ruminants are rarely reported. We used 454 pyrosequencing of 16S rDNA genes and gas chromatography-mass spectrometry to evaluate the effects of long-term feeding (HL) or short-term (HS) feeding of an HC diet on changes in bacterial microbiota and their metabolites in the hindgut, with Guanzhong goat as a ruminant model. Results indicated that an HC diet decreased bacterial diversity and induced metabolic disorder in the hindgut...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28950181/cross-sectional-study-of-the-determinants-and-associations-of-sex-hormone-binding-globulin-concentrations-in-first-degree-relatives-fdr-of-patients-with-type-2-diabetes-mellitus
#8
N A Abdella, O A Mojiminiyi
AIMS: This study explores the determinants of sex hormone binding globulin (SHBG) and associations with categories of glucose intolerance and undiagnosed diabetes in first-degree relatives (FDR) of patients with Type 2 Diabetes Mellitus (T2D). METHODS: Anthropometric indices, fasting lipids, glucose, insulin, adiponectin, leptin, SHBG, estradiol (E2), testosterone (TT), androstenedione (AND), dehydroepiandrosterone sulphate (DHEA-S), high-sensitivity C-reactive protein (hs-CRP) and alanine aminotransferase (ALT) were measured in 584 FDR...
September 5, 2017: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28937628/integrative-pathway-analysis-of-genes-and-metabolites-reveals-metabolism-abnormal-subpathway-regions-and-modules-in-esophageal-squamous-cell-carcinoma
#9
Chunquan Li, Qiuyu Wang, Jiquan Ma, Shengshu Shi, Xin Chen, Haixiu Yang, Junwei Han
Aberrant metabolism is one of the main driving forces in the initiation and development of ESCC. Both genes and metabolites play important roles in metabolic pathways. Integrative pathway analysis of both genes and metabolites will thus help to interpret the underlying biological phenomena. Here, we performed integrative pathway analysis of gene and metabolite profiles by analyzing six gene expression profiles and seven metabolite profiles of ESCC. Multiple known and novel subpathways associated with ESCC, such as 'beta-Alanine metabolism', were identified via the cooperative use of differential genes, differential metabolites, and their positional importance information in pathways...
September 22, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28921378/chemistry-and-chemical-equilibrium-dynamics-of-bmaa-and-its-carbamate-adducts
#10
Pedro Diaz-Parga, Joy J Goto, V V Krishnan
Beta-N-methylamino-L-alanine (BMAA) has been demonstrated to contribute to the onset of the ALS/Parkinsonism-dementia complex (ALS/PDC) and is implicated in the progression of other neurodegenerative diseases. While the role of BMAA in these diseases is still debated, one of the suggested mechanisms involves the activation of excitatory glutamate receptors. In particular, the excitatory effects of BMAA are shown to be dependent on the presence of bicarbonate ions, which in turn forms carbamate adducts in physiological conditions...
September 18, 2017: Neurotoxicity Research
https://www.readbyqxmd.com/read/28911206/identification-of-the-molecular-dysfunction-caused-by-glutamate-dehydrogenase-s445l-mutation-responsible-for-hyperinsulinism-hyperammonemia
#11
Mariagrazia Grimaldi, Melis Karaca, Livia Latini, Estelle Brioudes, Thomas Schalch, Pierre Maechler
Congenital hyperinsulinism/hyperammonemia (HI/HA) syndrome gives rise to unregulated protein-induced insulin secretion from pancreatic beta-cells, fasting hypoglycemia and elevated plasma ammonia levels. Mutations associated with HI/HA were identified in the Glud1 gene, encoding for glutamate dehydrogenase (GDH). We aimed at identifying the molecular causes of dysregulation in insulin secretion and ammonia production conferred by the most frequent HI/HA mutation Ser445Leu. Following transduction with adenoviruses carrying the human GDH-wild type or GDH-S445L-mutant gene, immunoblotting showed efficient expression of the transgenes in all the investigated cell types...
September 15, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28887542/genome-wide-analysis-of-health-related-biomarkers-in-the-uk-household-longitudinal-study-reveals-novel-associations
#12
Bram P Prins, Karoline B Kuchenbaecker, Yanchun Bao, Melissa Smart, Delilah Zabaneh, Ghazaleh Fatemifar, Jian'an Luan, Nick J Wareham, Robert A Scott, John R B Perry, Claudia Langenberg, Michaela Benzeval, Meena Kumari, Eleftheria Zeggini
Serum biomarker levels are associated with the risk of complex diseases. Here, we aimed to gain insights into the genetic architecture of biomarker traits which can reflect health status. We performed genome-wide association analyses for twenty serum biomarkers involved in organ function and reproductive health. 9,961 individuals from the UK Household Longitudinal Study were genotyped using the Illumina HumanCoreExome array and variants imputed to the 1000 Genomes Project and UK10K haplotypes. We establish a polygenic heritability for all biomarkers, confirm associations of fifty-four established loci, and identify five novel, replicating associations at genome-wide significance...
September 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28862181/identification-of-a-novel-homozygous-mutation-in-transmembrane-channel-like-1-tmc1-gene-one-of-the-second-tier-hearing-loss-genes-after-gjb2-in-india
#13
Pawan Kumar Singh, Manju Ghosh, Shipra Sharma, Shivaram Shastri, Neerja Gupta, Madhumita Roy Chowdhury, Anuranjan Anand, Madhulika Kabra
BACKGROUND & OBJECTIVES: Hearing impairment is a common and heterogeneous sensory disorder in humans. Among about 90 genes, which are known to be associated with hearing impairment, mutations in the GJB2 (gap junction protein beta 2) gene are the most prevalent in individuals with hereditary hearing loss. Contribution of the other deafness-causing genes is relatively poorly understood. Here, we present our findings on two families with transmembrane channel like 1 (TMC1) gene variants of the 47 families with nonsyndromic hearing loss (NSHL) studied...
April 2017: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/28861087/alanine-mutagenesis-in-the-complementarity-determining-region-3-of-the-mtb-and-hiv-1-peptide-bispecific-t-cell-receptor-beta-chain-affects-ligand-recognition
#14
Chao-Ying Zhou, Rui-Ning Wang, Qian Wen, Wen-Ting He, Shi-Meng Zhang, Xia-Lin Du, Jia-Hui Yang, Li Ma
Mycobacterium tuberculosis/human immunodeficiency virus (MTB/HIV) coinfection presents a special challenge to the prevention and treatment of tuberculosis and HIV/AIDS. Adoptive transfer of high-affinity T cell receptor (TCR) gene-modified T cells against MTB and HIV antigens is a promising approach to treating MTB/HIV coinfected patients whose cellular immunity is obviously disordered. We have previously successfully identified that a bispecific TCR screened out from peripheral blood mononuclear cells of a HLA-A*0201(+) healthy individual using the complementarity determining region 3 (CDR3) spectratype analysis recognizes both MTB Ag85B199-207 and HIV-1 Env120-128 peptide...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28837265/exposure-to-bmaa-mirrors-molecular-processes-linked-to-neurodegenerative-disease
#15
Joshua Beri, Tara Nash, Rubia M Martin, Michael S Bereman
The goal of this study is to investigate the molecular pathways perturbed by in vitro exposure of beta-methylamino-L-alanine (BMAA) to NSC-34 cells via contemporary proteomics. Our analysis of differentially regulated proteins reveals significant enrichment (p < 0.01) of pathways related to ER stress, protein ubiquitination, the unfolded protein response, and mitochondrial dysfunction. Upstream regulator analysis indicates that exposure to BMAA induces activation of transcription factors (X-box binding protein 1; nuclear factor 2 erythroid like 2; promyelocytic leukemia) involved in regulation of the UPR, oxidative stress, and cellular senescence...
September 2017: Proteomics
https://www.readbyqxmd.com/read/28836148/anti-diabetic-actions-of-esculentin-2cha-1-30-and-its-stable-analogues-in-a-diet-induced-model-of-obesity-diabetes
#16
Srividya Vasu, Opeolu O Ojo, R Charlotte Moffett, J Michael Conlon, Peter R Flatt, Yasser H A Abdel-Wahab
Actions of esculentin-2CHa(1-30) (GFSSIFRGVAKFASKGLGKDLAKLGVDLVA) and its analogues, ([D-Arg(7), D-Lys(15), D-Lys(23)]-esculentin-2CHa(1-30) and [Lys(15)-octanoate]-esculentin-2CHa(1-30), were evaluated in high-fat fed NIH Swiss mice with impaired glucose tolerance and insulin resistance. Twice-daily i.p. administration of the esculentin-2CHa(1-30) peptides (75 nmol/kg body weight) or exendin-4 (25 nmol/kg) for 28 days reduced body weight, without altering cumulative energy intake. All peptides reduced blood glucose levels by 6-12 mmol/l concomitant with lower plasma insulin levels, with significance evident from day 6...
August 23, 2017: Amino Acids
https://www.readbyqxmd.com/read/28828081/effects-of-plyometric-training-and-beta-alanine-supplementation-on-maximal-intensity-exercise-and-endurance-in-female-soccer-players
#17
Fabián Rosas, Rodrigo Ramírez-Campillo, Cristian Martínez, Alexis Caniuqueo, Rodrigo Cañas-Jamet, Emma McCrudden, Cesar Meylan, Jason Moran, Fábio Y Nakamura, Lucas A Pereira, Irineu Loturco, Daniela Diaz, Mikel Izquierdo
Plyometric training and beta-alanine supplementation are common among soccer players, although its combined use had never been tested. Therefore, a randomized, double-blind, placebo-controlled trial was conducted to compare the effects of a plyometric training program, with or without beta-alanine supplementation, on maximal-intensity and endurance performance in female soccer players during an in-season training period. Athletes (23.7 ± 2.4 years) were assigned to either a plyometric training group receiving a placebo (PLACEBO, n = 8), a plyometric training group receiving beta-alanine supplementation (BA, n = 8), or a control group receiving placebo without following a plyometric training program (CONTROL, n = 9)...
September 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28818411/long-term-supplementation-with-egcg-and-beta-alanine-decreases-mortality-but-does-not-affect-cognitive-or-muscle-function-in-aged-mice
#18
Brandt D Pence, Tushar K Bhattacharya, Pul Park, Jennifer L Rytych, Jacob M Allen, Yi Sun, Robert H McCusker, Keith W Kelley, Rodney W Johnson, Justin S Rhodes, Jeffrey A Woods
We have previously shown that 6weeks of a diet containing epigallocatechin gallate (EGCG) and beta-alanine (B-ALA) was not effective in improving either cognitive or muscle function in aged (18month) mice (Gibbons et al. Behav Brain Res 2014). However, diet reduced oxidative stress in the brain, and previous studies using longer-term interventions have documented beneficial effects in cognitive, but not muscle, function. Therefore, we investigated the effect of 6months of feeding on measures of cognitive and muscle function in mice...
November 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28806173/the-%C3%AE-alanine-transporter-balat-is-required-for-visual-neurotransmission-in-drosophila
#19
Yongchao Han, Liangyao Xiong, Ying Xu, Tian Tian, Tao Wang
The recycling of neurotransmitters is essential for sustained synaptic transmission. In Drosophila, histamine recycling is required for visual synaptic transmission. Synaptic histamine is rapidly taken up by laminar glia, and is converted to carcinine. After delivered back to photoreceptors, carcinine is hydrolyzed to release histamine and β-alanine. This histamine is repackaged into synaptic vesicles, but it is unclear how the β-alanine is returned to the laminar glial cells. Here, we identified a new β-alanine transporter, which we named BalaT (Beta-alanine Transporter)...
August 14, 2017: ELife
https://www.readbyqxmd.com/read/28783594/antigenic-characterization-of-52-55kda-protein-isolated-from-trypanosoma-evansi-and-its-application-in-detection-of-equine-trypanosomosis
#20
S C Yadav, Ritesh Kumar, Jaideep Kumar, Meetali Singh, B C Bera, Rajender Kumar, U Tatu, Kanika Tehri
Trypanosoma evansi is a haemo-protozoan parasite responsible for the disease surra, an economically important disease of wide range of domestic and wild animals. The present diagnostic methods using soluble antigens have inherent problems like lack of standardized and reproducible antigens, as well as ethical issues. This entails further efforts for search of defined antigenic molecules with satisfying sensitivity and specificity for sero-epidemiology of trypanosomosis. In present investigation, we have identified and purified 52-55kDa immuno-dominant protein cluster in molecular mass ranges by preparatory SDS-PAGE methods from T...
August 1, 2017: Research in Veterinary Science
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