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Acid base disturbance

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https://www.readbyqxmd.com/read/28104473/hyperlipidaemia-alone-and-in-combination-with-acidosis-can-increase-the-incidence-and-severity-of-statin-induced-myotoxicity
#1
Dhiaa A Taha, Atheer Zgair, Jong Bong Lee, Cornelia H de Moor, David A Barrett, Kimberley D Bruce, Mitchell Sungelo, Robert H Eckel, Pavel Gershkovich
The association of lipophilic statins with plasma lipoproteins in the presence of disturbed acid-base balance can modify the pharmacokinetics and tissue distribution of these drugs, resulting in alteration in their efficacy and toxicity profiles. The purpose of this study is to elucidate the role of hyperlipidaemia alone or in combination with acidosis/alkalosis in the development and potentiation of statin-induced myotoxicity. Statins association with plasma lipoproteins was examined under conditions of physiological and altered pH levels...
January 16, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28095303/gd-dtpa-induced-dynamic-metabonomic-changes-in-rat-biofluids
#2
Chuanling Wan, Youyang Zhan, Rong Xue, Yijie Wu, Xiaojing Li, Fengkui Pei
OBJECTIVES: The purposes of this study were (1) to detect the dynamic metabonomic changes induced by gadopentetate dimeglumine (Gd-DTPA) and (2) to investigate the potential metabolic disturbances associated with the pathogenesis of nephrogenic systemic fibrosis (NSF) at the early stage. METHODS: A nuclear magnetic resonance (NMR)-based metabolomics approach was used to investigate the urinary and serum metabolic changes induced by a single tail vein injection of Gd-DTPA (dosed at 2 and 5mmol/kg body weight) in rats...
January 14, 2017: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/28094526/1h-nmr-based-global-metabolic-studies-of-pseudomonas-aeruginosa-upon-exposure-of-the-quorum-sensing-inhibitor-resveratrol
#3
Tongtong Chen, Jiyang Sheng, Yonghong Fu, Ming-Hui Li, Jun-Song Wang, Aiqun Jia
Quorum sensing (QS) is a process of bacterial communication that has been a novel target for drug discovery. Pyocyanin quantification assay confirmed that resveratrol was an effective quorum sensing inhibitor (QSI) against Pseudomonas aeruginosa PAO1. In this study, the global metabolite changes of P. aeruginosa PAO1 exposed to QSI resveratrol were investigated by 1H-NMR spectroscopy. A total of 40 metabolites containing amino acids, organic acid, organic amine and energy storage compounds were identified. The changed metabolic profile indicated that resveratrol influenced pathways including oxidative stress, protein synthesis and energy metabolism...
January 17, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28092089/time-dependent-lactate-production-and-amino-acid-utilization-in-cultured-astrocytes-under-high-glucose-exposure
#4
Dan Wang, Liangcai Zhao, Hong Zheng, Minjian Dong, Linlin Pan, Xi Zhang, Huajie Zhang, Hongchang Gao
Accumulating investigations have focused on the severity of central nervous system (CNS) complications in diabetic patients. The effects of the high glucose (HG) probably attribute to the metabolic disturbances in CNS. Astrocytes, with powerful ability of metabolic regulation, play crucial roles in physiological and pathological processes in CNS. Hence, an in-depth analysis as to metabolic alterations of astrocytes exposure to HG would facilitate to explore the underlying pathogenesis. In this study, the (1)H NMR-based metabonomic approach was performed to characterize the metabolic variations of intracellular metabolites and corresponding culture media in a time-dependent manner...
January 16, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28068433/molecular-and-functional-characterization-of-gr2-r1-event-based-backcross-derived-lines-of-golden-rice-in-the-genetic-background-of-a-mega-rice-variety-swarna
#5
Haritha Bollinedi, Gopala Krishnan S, Kumble Vinod Prabhu, Nagendra Kumar Singh, Sushma Mishra, Jitendra P Khurana, Ashok Kumar Singh
Homozygous Golden Rice lines developed in the background of Swarna through marker assisted backcross breeding (MABB) using transgenic GR2-R1 event as a donor for the provitamin A trait have high levels of provitamin A (up to 20 ppm) but are dwarf with pale green leaves and drastically reduced panicle size, grain number and yield as compared to the recurrent parent, Swarna. In this study, we carried out detailed morphological, biochemical and molecular characterization of these lines in a quest to identify the probable reasons for their abnormal phenotype...
2017: PloS One
https://www.readbyqxmd.com/read/28067231/multiomics-reveal-non-alcoholic-fatty-liver-disease-in-rats-following-chronic-exposure-to-an-ultra-low-dose-of-roundup-herbicide
#6
Robin Mesnage, George Renney, Gilles-Eric Séralini, Malcolm Ward, Michael N Antoniou
The impairment of liver function by low environmentally relevant doses of glyphosate-based herbicides (GBH) is still a debatable and unresolved matter. Previously we have shown that rats administered for 2 years with 0.1 ppb (50 ng/L glyphosate equivalent dilution; 4 ng/kg body weight/day daily intake) of a Roundup GBH formulation showed signs of enhanced liver injury as indicated by anatomorphological, blood/urine biochemical changes and transcriptome profiling. Here we present a multiomic study combining metabolome and proteome liver analyses to obtain further insight into the Roundup-induced pathology...
January 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28065791/the-neuroprotective-strategic-analysis-for-patients-with-acute-myocardial-infarction-combined-with-hypoxic-ischemic-encephalopathy-in-icu
#7
Yali Chao, Weiwei Hu, Xiaojuan Geng
BACKGROUND: We conducted this study to investigate the neuroprotective treatment strategies for patients with acute myocardial infarction (AMI) complicated with hypoxic ischemic encephalopathy (HIE) in the ICU. METHODS: A total of 83 cases that were diagnosed with secondary AMI for the first time were selected and divided into observation group (n=43) and the control group (n=40). All of patients underwent emergency or elective PCI. Patients in the control group were treated with mannitol to reduce intracranial pressure, cinepazide maleate to improve microcirculation in the brain and also given comprehensive treatments of oxygen inhalation, fluid infusion, acid-base imbalance correction, electrolyte disturbance, etc...
January 5, 2017: Hellenic Journal of Cardiology: HJC, Hellēnikē Kardiologikē Epitheōrēsē
https://www.readbyqxmd.com/read/28063335/-1-h-nmr-based-metabolomics-study-of-liver-damage-induced-by-ginkgolic-acid-15-1-in-mice
#8
Lei Jiang, Zhi-Hong Si, Ming-Hui Li, He Zhao, Yong-Hong Fu, Yue-Xiao Xing, Wei Hong, Ling-Yu Ruan, Pu-Min Li, Jun-Song Wang
Ginkgolic acid (15:1) is a major toxic component in extracts obtained from Ginkgo biloba (EGb) that has allergic and genotoxic effects. This study is the first to explore the hepatotoxicity of ginkgolic acid (15:1) using a NMR (nuclear magnetic resonance)-based metabolomics approach in combination with biochemistry assays. Mice were orally administered two doses of ginkgolic acid (15:1), and mouse livers and serum were then collected for NMR recordings and biochemical assays. The levels of activity of alanine aminotransferase (ALT) and glutamic aspartate transaminase (AST) observed in the ginkgolic acid (15:1)-treated mice suggested that it had induced severe liver damage...
December 29, 2016: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28050187/detection-of-borna-disease-virus-bdv-in-patients-with-first-episode-of-schizophrenia
#9
Hasan Soltani, Serwa Mohammadzadeh, Manoochehr Makvandi, Siroos Pakseresht, Alireza Samarbaf-Zadeh
Objective: Schizophrenia is a complex widespread neuropsychiatric disorder. This illness encompasses a complex debilitating mental disorder causing illusion, delusion, disturbed relationship, low motivation and decline of emotion. Viral infection of the brain including Borna Disease Virus (BDV) may play a role in transient or permanent neurological and behavioral abnormalities. This role of Borna virus has not been resolved outright yet, and based on published papers investigation examining the role of this virus in schizophrenia is in progress worldwide...
October 2016: Iranian Journal of Psychiatry
https://www.readbyqxmd.com/read/28045158/metabolomics-and-proteomics-technologies-to-explore-the-herbal-preparation-affecting-metabolic-disorders-using-high-resolution-mass-spectrometry
#10
Aihua Zhang, Xiaohang Zhou, Hongwei Zhao, Shiyu Zou, Chung Wah Ma, Qi Liu, Hui Sun, Liang Liu, Xijun Wang
An integrative metabolomics and proteomics approach can provide novel insights in the understanding of biological systems. We have integrated proteome and metabolome data sets for a holistic view of the molecular mechanisms in disease. Using quantitative iTRAQ-LC-MS/MS proteomics coupled with UPLC-Q-TOF-HDMS based metabolomics, we determined the protein and metabolite expression changes in the kidney-yang deficiency syndrome (KYDS) rat model and further investigated the intervention effects of the Jinkui Shenqi Pill (JSP)...
January 3, 2017: Molecular BioSystems
https://www.readbyqxmd.com/read/28043496/uric-acid-levels-in-patients-on-antituberculosis-drugs-in-the-southwest-region-of-cameroon
#11
Benjamin D Thumamo Pokam, Enoh J Eeteneneng, Aniekan Umoh, Nse O Umoh, Prisca W Guemdjom
OBJECTIVE/BACKGROUND: Antituberculosis drugs (ATDs) efficiently combat Mycobacterium tuberculosis either through direct molecular interactions or its metabolites. However, a variety of adverse effects have been reported, leading to frequent interruptions of treatment. In order to investigate possible metabolic disturbances resulting from antituberculosis treatment, the uric acid level of patients on ATDs was measured in the Southwest region of Cameroon. METHODS: This hospital-based cross-sectional study involved 96 tuberculosis patients on ATDs and 32 controls who were neither on ATDs nor any other treatment that could increase uric acid levels...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28043369/impact-of-acute-metabolic-acidosis-on-the-acid-base-balance-in-follicular-fluid-and-blood-in-dairy-cattle
#12
E Indrova, R Dolezel, J Novakova-Mala, A Pechova, M Zavadilova, S Cech
Acid-base balance is one of the most vigorously regulated variables of the body, including genital organs. Subacute ruminal acidosis is a common disturbance in dairy cows that disturbs several biochemical indices in the blood, cerebrospinal fluid, and urine. The possible negative effects of metabolic acidosis on the follicular fluid (FF) composition and, subsequently, on oocyte quality, are not fully elucidated. This study aimed to evaluate the changes in acid-base balance (ABB) in FF and blood during acute metabolic acidosis in dairy heifers...
February 2017: Theriogenology
https://www.readbyqxmd.com/read/28038682/comparison-of-a-teratogenic-transcriptome-based-predictive-test-based-on-human-embryonic-versus-inducible-pluripotent-stem-cells
#13
Vaibhav Shinde, Sureshkumar Perumal Srinivasan, Margit Henry, Tamara Rotshteyn, Jürgen Hescheler, Jörg Rahnenführer, Marianna Grinberg, Johannes Meisig, Nils Blüthgen, Tanja Waldmann, Marcel Leist, Jan Georg Hengstler, Agapios Sachinidis
BACKGROUND: Human embryonic stem cells (hESCs) partially recapitulate early embryonic three germ layer development, allowing testing of potential teratogenic hazards. Because use of hESCs is ethically debated, we investigated the potential for human induced pluripotent stem cells (hiPSCs) to replace hESCs in such tests. METHODS: Three cell lines, comprising hiPSCs (foreskin and IMR90) and hESCs (H9) were differentiated for 14 days. Their transcriptome profiles were obtained on day 0 and day 14 and analyzed by comprehensive bioinformatics tools...
December 30, 2016: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28029394/non-anion-gap-metabolic-acidosis-a-clinical-approach%C3%A2-to%C3%A2-evaluation
#14
Mandana Rastegar, Glenn T Nagami
Acid-base disturbances can result from kidney or nonkidney disorders. We present a case of high-volume ileostomy output causing large bicarbonate losses and resulting in a non-anion gap metabolic acidosis. Non-anion gap metabolic acidosis can present as a form of either acute or chronic metabolic acidosis. A complete clinical history and physical examination are critical initial steps to begin the evaluation process, followed by measuring serum electrolytes with a focus on potassium level, blood gas, urine pH, and either direct or indirect urine ammonium concentration...
October 28, 2016: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/28018190/disruption-of-the-glutamate-glutamine-cycle-involving-astrocytes-in-an-animal-model-of-depression-for-males-and-females
#15
Virginie Rappeneau, Amanda Blaker, Jeff R Petro, Bryan K Yamamoto, Akiko Shimamoto
Background: Women are twice as likely as men to develop major depression. The brain mechanisms underlying this sex disparity are not clear. Disruption of the glutamate-glutamine cycle has been implicated in psychiatric disturbances. This study identifies sex-based impairments in the glutamate-glutamine cycle involving astrocytes using an animal model of depression. Methods: Male and female adult Long-Evans rats were exposed to chronic social defeat stress (CSDS) for 21 days, using a modified resident-intruder paradigm...
2016: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28013396/transcriptomic-analysis-displays-the-effect-of-roemerine-on-the-motility-and-nutrient-uptake-in-escherichia-coli
#16
Dilara Ayyildiz, Kazim Yalcin Arga, Fatma Gizem Avci, Fatma Ece Altinisik, Caglayan Gurer, Gizem Gulsoy Toplan, Dilek Kazan, Katharina Wozny, Britta Brügger, Bulent Mertoglu, Berna Sariyar Akbulut
Among the different families of plant alkaloids, (-)-roemerine, an aporphine type, was recently shown to possess significant antibacterial activity in Escherichia coli. Based on the increasing demand for antibacterials with novel mechanisms of action, the present work investigates the potential of the plant-derived alkaloid (-)-roemerine as an antibacterial in E. coli cells using microarray technology. Analysis of the genome-wide transcriptional reprogramming in cells after 60 min treatment with 100 μg/mL (-)-roemerine showed significant changes in the expression of 241 genes (p value <0...
December 24, 2016: Current Genetics
https://www.readbyqxmd.com/read/28012135/eicosapentaenoic-acid-enriched-phosphatidylcholine-attenuated-hepatic-steatosis-through-regulation-of-cholesterol-metabolism-in-rats-with-nonalcoholic-fatty-liver-disease
#17
Yanjun Liu, Di Shi, Yingying Tian, Yuntao Liu, Qiping Zhan, Jie Xu, Jingfeng Wang, Changhu Xue
Nonalcoholic fatty liver disease (NAFLD) is the most common chronic liver disease in the world. Disturbed cholesterol metabolism plays a crucial role in the development of NAFLD. The present study was conducted to evaluate the effects of EPA-PC extracted from sea cucumber on liver steatosis and cholesterol metabolism in NAFLD. Male Wistar rats were randomly divided into seven groups (normal control group, model group, lovastatin group, low- and high-dose EPA groups, and low- and high-dose EPA-PC groups). Model rats were established by administering a diet containing 1% orotic acid...
December 24, 2016: Lipids
https://www.readbyqxmd.com/read/28005947/metabolic-disturbances-in-adult-onset-still-s-disease-evaluated-using-liquid-chromatography-mass-spectrometry-based-metabolomic-analysis
#18
Der-Yuan Chen, Yi-Ming Chen, Han-Ju Chien, Chi-Chen Lin, Chia-Wei Hsieh, Hsin-Hua Chen, Wei-Ting Hung, Chien-Chen Lai
OBJECTIVE: Liquid chromatography/mass spectrometry (LC/MS)-based comprehensive analysis of metabolic profiles with metabolomics approach has potential diagnostic and predictive implications. However, no metabolomics data have been reported in adult-onset Still's disease (AOSD). This study investigated the metabolomic profiles in AOSD patients and examined their association with clinical characteristics and disease outcome. METHODS: Serum metabolite profiles were determined on 32 AOSD patients and 30 healthy controls (HC) using ultra-performance liquid chromatography (UPLC)/MS analysis, and the differentially expressed metabolites were quantified using multiple reactions monitoring (MRM)/MS analysis in 44 patients and 42 HC...
2016: PloS One
https://www.readbyqxmd.com/read/28005739/minimally-invasive-strip-craniectomy-simplifies-anesthesia-practice-in-patients-with-isolated-sagittal-synostosis
#19
Daan P F van Nunen, Bart M Stubenitsky, Peter A Woerdeman, Kuo Sen Han, Corstiaan C Breugem, Aebele B Mink van der Molen, Jurgen C de Graaff
BACKGROUND: Traditional open corrective surgery for isolated sagittal synostosis entails significant blood loss, transfusion rates, morbidity, and a lengthy hospitalization. Minimally invasive strip craniectomy (MISC) was introduced to avoid the disadvantages of open techniques. OBJECTIVES: The aim of the study was, first, to compare the anesthesia practice in MISC and open extended strip craniectomy (OESC), and, second, to evaluate the incidence of perioperative complications in both surgical procedures...
November 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28005350/responses-of-the-proteome-and-metabolome-in-livers-of-zebrafish-exposed-chronically-to-environmentally-relevant-concentrations-of-microcystin-lr
#20
Liang Chen, Yufei Hu, Jun He, Jun Chen, John P Giesy, Ping Xie
In this study, for the first time, changes in expressions of proteins and profiles of metabolites in liver of the small, freshwater fish [Formula: see text] (zebrafish) were investigated after long-term exposure to environmentally relevant concentrations of microcystin-LR (MC-LR). Male zebrafish were exposed via water to 1 or 10 μg MC-LR/L for 90 days, and iTRAQ-based proteomics and (1)H NMR-based metabolomics were employed. Histopathological observations showed that MC-LR caused damage to liver, and the effects were more pronounced in fish exposed to 10 μg MC-LR/L...
January 3, 2017: Environmental Science & Technology
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