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Urine metabolic screen

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https://www.readbyqxmd.com/read/28929692/-metabolomics-of-bovine-serum-albumin-induced-allergic-reactions-based-on-uplc-q-tof-ms
#1
Yuan-Yuan Gu, Dan-Dan Zhang, Cheng Feng, Yu Wang, Da-Zhong Chen, Yan-Hong Wang
The metabonomic techniques were used to study the changes in endogenous metabolites between urines of rats in normal physiological conditions and bovine serum albumin induced allergic reactions, identify potential biomarkers associated with allergic reactions, and then analyze the metabolic pathways and the metabolic mechanisms of allergic reactions. The bovine serum albumin-induced allergic reactions in rats were adopted as a model to detect histamine and tryptase in rat serum and observe the issue morphology of lungs and trachea in rats...
November 2016: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28925010/temporal-trends-in-quality-of-primary-care-for-patients-with-type-2-diabetes-mellitus-a-population-based-retrospective-cohort-study-after-implementation-of-a-quality-improvement-initiative
#2
Carlos K H Wong, Colman S C Fung, Esther Y T Yu, Eric Y F Wan, Anca K C Chan, Cindy L K Lam
BACKGROUND: This study examined whether temporal trends exist in treatment of patients with type 2 diabetes (T2D) and quality of diabetes care after implementation of quality improvement initiative in primary care setting. METHODS: We conducted a population-based retrospective cohort study of 202,284 patients with T2D who were routinely managed in primary care clinics. We examined the change over time and the variability between clinics in quality-of-care from Hospital Authority administrative data over a five-year period (2009-2013), and used multilevel logistic regression to adjust for patient and clinic characteristics...
September 19, 2017: Diabetes/metabolism Research and Reviews
https://www.readbyqxmd.com/read/28920057/amine-metabolism-is-influenced-by-dietary-protein-source
#3
Soumya K Kar, Alfons J M Jansman, Dirkjan Schokker, Leo Kruijt, Amy C Harms, Jerry M Wells, Mari A Smits
Growth in world population will inevitably leads to increased demand for protein for humans and animals. Protein from insects and blood plasma are being considered as possible alternatives, but more research on their nutritional quality and health effects is needed. Here, we studied the effect of dietary protein source on metabolism and metabolic amine profiles in serum and urine of mice. Groups of mice were fed semi-purified diets containing 300 g/kg of soybean meal, casein, partially delactosed whey powder, spray-dried plasma protein, wheat gluten meal, and yellow mealworm...
2017: Frontiers in Nutrition
https://www.readbyqxmd.com/read/28919799/maple-syrup-urine-disease-mechanisms-and-management
#4
REVIEW
Patrick R Blackburn, Jennifer M Gass, Filippo Pinto E Vairo, Kristen M Farnham, Herjot K Atwal, Sarah Macklin, Eric W Klee, Paldeep S Atwal
Maple syrup urine disease (MSUD) is an inborn error of metabolism caused by defects in the branched-chain α-ketoacid dehydrogenase complex, which results in elevations of the branched-chain amino acids (BCAAs) in plasma, α-ketoacids in urine, and production of the pathognomonic disease marker, alloisoleucine. The disorder varies in severity and the clinical spectrum is quite broad with five recognized clinical variants that have no known association with genotype. The classic presentation occurs in the neonatal period with developmental delay, failure to thrive, feeding difficulties, and maple syrup odor in the cerumen and urine, and can lead to irreversible neurological complications, including stereotypical movements, metabolic decompensation, and death if left untreated...
2017: Application of Clinical Genetics
https://www.readbyqxmd.com/read/28916042/urinary-intermediates-of-tryptophan-as-indicators-of-the-gut-microbial-metabolism
#5
Tereza Pavlova, Veronika Vidova, Julie Bienertova-Vasku, Petr Janku, Martina Almasi, Jana Klanova, Zdenek Spacil
While over 10% of the human metabolome is directly associated with the gut microbial metabolism, specific metabolites are largely uncharacterized. Therefore, methods for the identification and quantification of microbiota-associated metabolites in biological fluids such as urine or plasma are necessary in order to elucidate the molecular basis of host-microbiota interaction. In this study, we focused on the tryptophan metabolism, employing quantitative assays by ultra-high performance liquid chromatography (UHPLC) and tandem mass spectrometry, specifically selected reaction monitoring (SRM)...
September 22, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28914192/current-trends-in-cancer-biomarker-discovery-using-urinary-metabolomics-achievements-and-new-challenges
#6
Casey Burton, Yinfa Ma
The development of effective screening methods for early cancer detection is one of the foremost challenges facing modern cancer research. Urinary metabolomics has recently emerged as a potentially transformative approach to cancer biomarker discovery owing to its noninvasive sampling characteristics and robust analytical feasibility. OBJECTIVE: To provide an overview of new developments in urinary metabolomics, cover the most promising aspects of hyphenated techniques in untargeted and targeted metabolomics, and to discuss technical and clinical limitations in addition to the emerging challenges in the field of urinary metabolomics and its application to cancer biomarker discovery...
September 13, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28904459/clinical-biochemical-characteristics-and-hospital-outcome-of-acute-intermittent-porphyria-patients-a-descriptive-study-from-north-india
#7
Susheel Kumar, Ashish Bhalla, Navneet Sharma, Deba Prasad Dhibar, Savita Kumari, Subhash Varma
INTRODUCTION: Acute intermittent porphyria (AIP) is an inherited metabolic disease characterized by disordered heme biosynthesis. There is no recent study reported from India. MATERIALS AND METHODS: It was a retrospective, observational study. Clinical records of patients of AIP with acute porphyric attacks admitted from April 2008 to December 2016 were analyzed. RESULTS: Fifteen AIP patients constituted of eight females and seven males were analyzed...
July 2017: Annals of Indian Academy of Neurology
https://www.readbyqxmd.com/read/28902093/bile-acid-synthesis-disorders-in-arabs-a-10-year-screening-study
#8
Abdulrahman Al-Hussaini, Kenneth D R Setchell, Bader AlSaleem, James E Heubi, Khurram Lone, Anne Davit-Spraul, Emmanuel Jacquemin
OBJECTIVES: Early diagnosis of bile acid synthesis disorders (BASD) is important because, untreated, these conditions can be fatal. Our objectives were to screen children with cholestasis or unexplained liver disease for BASD and in those with confirmed BASD to evaluate the effectiveness of cholic acid therapy. METHODS: A routine serum total bile acid measurement was performed on children with cholestasis, liver cirrhosis, and liver failure. Patients were screened for BASD by fast atom bombardment ionization-mass spectrometry (FAB-MS) analysis of urine, and molecular analysis confirmed diagnosis...
September 9, 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/28877755/uric-acid-an-important-screening-tool-to-detect-inborn-errors-of-metabolism-a-case-series
#9
Eresha Jasinge, Grace Angeline Malarnangai Kularatnam, Hewa Warawitage Dilanthi, Dinesha Maduri Vidanapathirana, Kandana Liyanage Subhashinie Priyadarshika Kapilani Menike Jayasena, Nambage Dona Priyani Dhammika Chandrasiri, Neluwa Liyanage Ruwan Indika, Pyara Dilani Ratnayake, Vindya Nandani Gunasekara, Lynette Dianne Fairbanks, Blanka Stiburkova
BACKGROUND: Uric acid is the metabolic end product of purine metabolism in humans. Altered serum and urine uric acid level (both above and below the reference ranges) is an indispensable marker in detecting rare inborn errors of metabolism. We describe different case scenarios of 4 Sri Lankan patients related to abnormal uric acid levels in blood and urine. CASE 1: A one-and-half-year-old boy was investigated for haematuria and a calculus in the bladder. Xanthine crystals were seen in microscopic examination of urine sediment...
September 6, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28875544/identification-and-characterization-of-vilazodone-metabolites-in-rats-and-microsomes-by-uhplc-q-tof-ms-ms
#10
Balasaheb B Chavan, Pradipbhai D Kalariya, Shristy Tiwari, Rakesh D Nimbalkar, Prabha Garg, R Srinivas, M V N Kumar Talluri
RATIONALE: Vilazodone is a selective serotonin reuptake inhibitor (SSRI) used for the treatment of major depressive disorder (MDD). Extensive literature search indicated scarce reports on in vivo and in vitro metabolism of vilazodone. Therefore, we report a comprehensive in vivo and in vitro metabolite identification and structural characterization of vilazodone using ultrahigh-performance liquid chromatography-quadrupole time-of-flight tandem mass spectrometry (LC/Q-TOF/MS/MS) and in silico toxicity study of the metabolites...
September 5, 2017: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/28866044/investigation-of-the-preventive-effect-of-sijunzi-decoction-on-mitomycin-c-induced-immunotoxicity-in-rats-by-1-h-nmr-and-ms-based-untargeted-metabolomic-analysis
#11
Zhibo Guan, Juan Wu, Cancan Wang, Fang Zhang, Yinan Wang, Miao Wang, Min Zhao, Chunjie Zhao
ETHNOPHARMACOLOGICAL RELEVANCE: Sijunzi decoction (SJZD) is a well known traditional Chinese prescription used for the treatment of gastrointestinal disorders and immunity enhancement. It has been found to indeed improve life quality of chemotherapy patients and extensive used in clinical conbined with chemotherapeutics for the treatment of cancer. AIM OF THE STUDY: The aim of this study was to investigate the preventive effect of the immunotoxicity of SJZD on mitomycin C (MMC) and the metabolic mechanism of action...
September 1, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28853115/effects-of-mandatory-screening-labs-in-directing-the-disposition-of-the-apparently-healthy-psychiatric-patient-in-the-emergency-department
#12
Karyn E Kagel, Meghan Smith, Ilya V Latyshenko, Christopher Mitchell, Andrew Kagel
OBJECTIVE: To determine whether mandatory psychiatric admission laboratory tests yield results that change the disposition of a patient with primary psychiatric complaint from admission to a psychiatric service to admission to a medical service. METHODS: This was a single center retrospective cohort chart review study approved by the facility Institutional Review Board in which we used a records database maintained by the emergency department's social workers to access the records of every patient that presented to our emergency department with a psychiatric chief complaint between the dates of December 1, 2011, and December 1, 2013...
July 2017: U.S. Army Medical Department Journal
https://www.readbyqxmd.com/read/28841024/pharmacometabolomics-in-endogenous-drugs-a-new-approach-for-predicting-the-individualized-pharmacokinetics-of-cholic-acid
#13
Zhixin Zhang, Hao Gu, Huizhen Zhao, Yuehong Liu, Shuang Fu, Meiling Wang, Wenjuan Zhou, Ziye Xie, Honghong Yu, Zhenghai Huang, Xiaoyan Gao
The evaluation of individual variability in endogenous drugs' metabolism and disposition is a very challenging task. Here, we developed and validated a metabotype to pharmacokinetics (PK) matching approach by taking cholic acid as an example to predict the individualized PK of endogenous drugs. The stable isotope-labeled cholic acid was selected as the substitute analyte of cholic acid to ensure the accurate measurement of blood concentration. First, large-scale metabolite profiling studies were performed on the predose urine samples of 28 rats...
August 25, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28838645/systematic-screening-and-characterization-of-multiple-constituents-in-guizhi-fuling-capsule-and-metabolic-profiling-of-bioactive-components-in-rats-using-ultra-high-performance-liquid-chromatography-quadrupole-time-of-flight-mass-spectrometry
#14
Yu Zhang, Yezhe Cheng, Zhongbo Liu, Liqin Ding, Tianyi Qiu, Liwei Chai, Feng Qiu, Zhenzhong Wang, Wei Xiao, Longshan Zhao, Xiaohui Chen
Guizhi Fuling capsule (GFC), a prestigious traditional Chinese medicinal (TCM) prescription, is efficiently used to treat primary dysmenorrhea in the clinical practice. It's significant to explore the metabolic fate of multiple components in vivo which are responsible for the pharmacological effects but not fully investigated. A rapid and high-throughput method using ultra performance liquid chromatography/quadrupole time-of-flight tandem mass spectrometry (UPLC/Q-TOF-MS/MS) was established for systematic investigation on GFC, including GFC chemical compositions, and their absorption and metabolism in rat plasma, urine, uterus and brain after oral administration of GFC...
September 1, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28813744/alkaptonuria-a-case-report-with-diagnostic-challenge
#15
Vasantha L Gali, Amy M Kerkvliet, Jacob M Kusmak, Jana K Elwood
Alkaptonuria is a rare autosomal recessive metabolic disorder caused by deficiency of homogentisic acid (HGA) oxidase, the only enzyme capable of catabolizing HGA. Deficiency of this enzyme leads to excess HGA which deposits in the connective tissue. We present a case of a 64-year-old woman who was referred to the dermatology clinic for a full body mole check and skin cancer screening. Clinically she had blue/gray pigmentation of the external ear and sclera. Also she had a domed papule on the left cheek with punctate gray pigmentation which was biopsied...
August 2017: South Dakota Medicine: the Journal of the South Dakota State Medical Association
https://www.readbyqxmd.com/read/28809621/cardiovascular-risk-factors-and-mortality-in-children-with-chronic-kidney-disease
#16
Abdullahi Mudi, Caroline Dickens, Cecil Levy, Daynia Ballot
BACKGROUND: Cardiovascular disease (CVD) begins early in children with chronic kidney disease (CKD), and its progression is determined by the presence of single or multiple cardiovascular risk factors (CVRFs). OBJECTIVE: To determine the prevalence of CVRFs in children with CKD and their association with mortality in children on chronic dialysis. METHODS: This comparative cross-sectional study recruited children aged 5 - 18 years with all stages of CKD...
July 28, 2017: South African Medical Journal, Suid-Afrikaanse Tydskrif Vir Geneeskunde
https://www.readbyqxmd.com/read/28806569/metabolic-profiling-of-dehydrodiisoeugenol-using-xenobiotic-metabolomics
#17
Qian-Qian Lv, Xiao-Nan Yang, Dong-Mei Yan, Wei-Qing Liang, Hong-Ning Liu, Xiu-Wei Yang, Fei Li
Dehydrodiisoeugenol (DDIE), a representative and major benzofuran-type neolignan in Myristica fragrans Houtt., shows anti-inflammatory and anti-bacterial actions. In order to better understand its pharmacological properties, xenobiotic metabolomics was used to determine the metabolic map of DDIE and its influence on endogenous metabolites. Total thirteen metabolites of DDIE were identified through in vivo and in vitro metabolism, and seven of them were reported for the first time in the present study. The identity of DDIE metabolites was achieved by comparison of the MS/MS fragmentation pattern with DDIE using ultra-performance chromatography electrospray ionization quadrupole time-of-flight mass spectrometry (UPLC-ESI- QTOFMS)...
October 25, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28801043/rapid-identification-of-herbal-compounds-derived-metabolites-using-zebrafish-larvae-as-the-biotransformation-system
#18
Chen Wang, Ying-Hao Yin, Ying-Jie Wei, Zi-Qi Shi, Jian-Qun Liu, Li-Fang Liu, Gui-Zhong Xin
Metabolites derived from herbal compounds are becoming promising sources for discovering new drugs. However, the rapid identification of metabolites from biological matrixes is limited by massive endogenous interference and low abundance of metabolites. Thus, by using zebrafish larvae as the biotransformation system, we herein proposed and validated an integrated strategy for rapid identification of metabolites derived from herbal compounds. Two pivotal steps involved in this strategy are to differentiate metabolites from herbal compounds and match metabolites with their parent compounds...
July 29, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28793309/the-microbiome-in-urogenital-schistosomiasis-and-induced-bladder-pathologies
#19
Adewale S Adebayo, Mangesh Survayanshi, Shrikanth Bhute, Atinuke M Agunloye, Raphael D Isokpehi, Chiaka I Anumudu, Yogesh S Shouche
BACKGROUND: Human schistosomiasis is a highly prevalent neglected tropical disease (NTD) caused by Schistosoma species. Research on the molecular mechanisms influencing the outcomes of bladder infection by Schistosoma haematobium is urgently needed to develop new diagnostics, therapeutics and infection prevention strategies. The objective of the research study was to determine the microbiome features and changes in urine during urogenital schistosomiasis and induced bladder pathologies...
August 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28782580/new-psychoactive-substances-studies-on-the-metabolism-of-xlr-11-ab-pinaca-fub-pb-22-4-methoxy-%C3%AE-pvp-25-i-nbome-and-meclonazepam-using-human-liver-preparations-in-comparison-to-primary-human-hepatocytes-and-human-urine
#20
Lilian H J Richter, Hans H Maurer, Markus R Meyer
New psychoactive substances (NPS) are an increasing problem in clinical and forensic toxicology. The knowledge of their metabolism is important for toxicological risk assessment and for developing toxicological urine screenings. Considering the huge numbers of NPS annually appearing on the market, metabolism studies should be realized in a fast, simple, cost efficient, and reliable way. Primary human hepatocytes (PHH) were recommended to be the gold standard for in vitro metabolism studies as they are expected to contain natural enzyme clusters, co-substrates, and drug transporters...
August 4, 2017: Toxicology Letters
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