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Urine metabolic screen

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https://www.readbyqxmd.com/read/29781217/uhplc-q-tof-ms-based-screening-and-identification-of-main-flavonoids-and-their-metabolites-in-rats-after-oral-administration-of-cirsium-japonicum-dc-extract
#1
Xia Zhang, Man Liao, Xiaoye Cheng, Caijuan Liang, Xinpeng Diao, Lantong Zhang
RATIONALE: Cirsium japonicum DC., a traditional Chinese medicine, has been shown to have antihemorrhagic and antitumour effects. Pharmacological studies have demonstrated that this curative effect may be related to flavonoids. The present work aims to screen and identify the main flavonoids and their corresponding metabolites in rats after oral administration of Cirsium japonicum DC. extract. METHODS: A rapid and simple ultra-high-performance liquid chromatography coupled with triple quadrupole and time-of-flight mass spectrometry (UHPLC-Q-TOF-MS/MS) method was developed for the identification of the primary absorbing components and metabolites of the principal flavonoids...
May 20, 2018: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/29777900/material-basis-research-for-huangqi-jianzhong-tang-against-chronic-atrophic-gastritis-rats-through-integration-of-urinary-metabonomics-and-systemsdock
#2
Yuetao Liu, Wenqian Xu, GuoHong Wang, Xuemei Qin
ETHNOPHARMACOLOGICAL RELEVANCE: Huangqi Jianzhong Tang (HQJZ), a celebrated traditional Chinese medicine (TCM), is commonly used for treatment of chronic atrophic gastritis (CAG) in China. AIM OF THE STUDY: We aimed to screen out the material basis of HQJZ against CAG. MATERIALS AND METHODS: CAG rat model was constructed by alternant administrations of ammonia solution and sodium deoxycholate, and the hunger disorder method. Body weight, biochemical indexes and histopathological exam were used to evaluate the efficacy of HQJZ...
May 16, 2018: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29726116/phase-i-metabolism-of-the-carbazole-derived-synthetic-cannabinoids-eg-018-eg-2201-and-mdmb-chmczca-and-detection-in-human-urine-samples
#3
Lukas Mogler, Florian Franz, Maurice Wilde, Laura M Huppertz, Sebastian Halter, Verena Angerer, Bjoern Moosmann, Volker Auwärter
Synthetic cannabinoids (SCs) are a structurally diverse class of new psychoactive substances. Most SCs used for recreational purposes are based on indole or indazole core structures. EG-018 (naphthalen-1-yl(9-pentyl-9H-carbazol-3-yl)methanone), EG-2201 ((9-(5-fluoropentyl)-9H-carbazol-3-yl)(naphthalen-1-yl)methanone) and MDMB-CHMCZCA (methyl 2-(9-(cyclohexylmethyl)-9H-carbazole-3-carboxamido)-3,3-dimethylbutanoate) are three representatives of a structural subclass of SCs, characterized by a carbazole core system...
May 4, 2018: Drug Testing and Analysis
https://www.readbyqxmd.com/read/29708967/metabolite-profiling-for-biomarkers-in-schistosoma-haematobium-infection-and-associated-bladder-pathologies
#4
Adewale S Adebayo, Swapnil D Mundhe, Henrietta O Awobode, Olugbenga S Onile, Atinuke M Agunloye, Raphael D Isokpehi, Yogesh S Shouche, Bayatigeri Santhakumari, Chiaka I Anumudu
BACKGROUND: Metabolic fingerprinting analysis can offer insights into underlying reactions in a biological system; hence it is crucial to the understanding of disease pathogenesis and could provide useful tools for discovering biomarkers. We sought to examine the urine and plasma metabolome in individuals affected by urogenital schistosomiasis and its associated-bladder pathologies. METHODOLOGY: Blood and midstream urine were obtained from volunteers who matched our inclusion criteria among residents from Eggua, southwestern Nigeria...
April 30, 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29704771/new-approach-based-on-immunochemical-techniques-for-monitoring-of-selective-estrogen-receptor-modulators-serms-in-human-urine
#5
J-Pablo Salvador, Ester Vila-Roca, Núria Monfort, Rosa Ventura, M-Pilar Marco
Antiestrogenic compounds such as tamoxifen, toremifen and chlomifen are used illegally by athletes to minimize physical impacts such as gynecomastia resulting from the secondary effects of anabolic androgenic steroids, used to increase athletic efficiency unlawfully. The use of these compounds is banned by the World Anti-Doping Agency (WADA) and controls are made through analytical methodologies such as HPLC-MS/MS, which do not fulfil the sample throughput requirements. Moreover, compounds such as tamoxifen are also used to treat hormone receptor-positive breast cancer (ER + )...
April 22, 2018: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/29703326/-1-h-nmr-based-metabolomics-approach-to-investigating-the-renal-protective-effects-of-genipin-in-diabetic-rats
#6
Jun-Sheng Tian, Lei Zhao, Xiao-Li Shen, Huan Liu, Xue-Mei Qin
Diabetic nephropathy is one of the various complications of diabetes mellitus, affecting patients for lifetime. Earlier studies have revealed that genipin can not only improve diabetes, but also induce cytotoxicity. Therefore, it is not clear which effect of genipin on kidneys occurs, when it is used in the treatment of diabetes. In the present study, we performed nuclear magnetic resonance (NMR)-based metabolomics analysis of urine and kidney tissue samples obtained from diabetic rats to explore the change of endogenous metabolites associated with diabetes and concomitant kidney disease...
April 2018: Chinese Journal of Natural Medicines
https://www.readbyqxmd.com/read/29696052/novel-imaging-finding-and-novel-mutation-in-an-infant-with-molybdenum-cofactor-deficiency-a-mimicker-of-hypoxic-ischaemic-encephalopathy
#7
Sangeetha Yoganathan, SniyaVALSA Sudhakar, Maya Thomas, Atanu Kumar Dutta, Sumita Danda, Mahalakshmi Chandran
Molybdenum cofactor deficiency is a rare metabolic disorder manifesting with early onset seizures, developmental delay, microcephaly, and spasticity. In this report, we describe a three-month-old infant with neonatal onset, poorly controlled seizures, developmental delay, microcephaly, spastic quadriparesis and visual insufficiency. Magnetic resonance imaging of brain had shown cystic encephalomalacia involving bilateral parieto-occipital lobe and elevated lactate in magnetic resonance spectroscopy. Restricted diffusion noted along the corticospinal tract in our case is a novel imaging finding in patients with molybdenum cofactor deficiency...
2018: Iranian Journal of Child Neurology
https://www.readbyqxmd.com/read/29693787/integrated-strategy-based-on-high-resolution-mass-spectrometry-coupled-with-multiple-data-mining-techniques-for-the-metabolic-profiling-of-xanthoceras-sorbifolia-bunge-husks-in-rat-plasma-urine-and-feces
#8
Weiwei Rong, Sirui Guo, Kewen Ding, Ziyue Yuan, Qing Li, Kaishun Bi
An integrated strategy based on high-resolution mass spectrometry coupled with multiple data mining techniques was developed to screen the metabolites in rat biological fluids after the oral administration of Xanthoceras sorbifolia Bunge husks. Mass defect filtering, product ions filtering and neutral loss filtering were applied to detect metabolites from the complex matrix. As a result, a total of 55 metabolites were tentatively identified, among which, 45 barrigenol type triterpenoids metabolites were detected in the feces, six flavonoids and four coumarins metabolites were in the urine...
April 25, 2018: Journal of Separation Science
https://www.readbyqxmd.com/read/29670060/innovative-diagnostic-methods-for-early-prostate-cancer-detection-through-urine-analysis-a-review
#9
REVIEW
Carmen Bax, Gianluigi Taverna, Lidia Eusebio, Selena Sironi, Fabio Grizzi, Giorgio Guazzoni, Laura Capelli
Prostate cancer is the second most common cause of cancer death among men. It is an asymptomatic and slow growing tumour, which starts occurring in young men, but can be detected only around the age of 40–50. Although its long latency period and potential curability make prostate cancer a perfect candidate for screening programs, the current procedure lacks in specificity. Researchers are rising to the challenge of developing innovative tools able of detecting the disease during its early stage that is the most curable...
April 18, 2018: Cancers
https://www.readbyqxmd.com/read/29649170/uflc-q-tof-ms-ms-based-screening-and-identification-of-flavonoids-and-derived-metabolites-in-human-urine-after-oral-administration-of-exocarpium-citri-grandis-extract
#10
Xuan Zeng, Weiwei Su, Yuying Zheng, Hong Liu, Panlin Li, Weijian Zhang, Yuting Liang, Yang Bai, Wei Peng, Hongliang Yao
Exocarpium Citri grandis (ECG) is an important Traditional Chinese Medicine (TCM) for the treatment of cough and phlegm, and the flavonoids contained were considered the main effective components. To date, the systematic chemical profiling of these flavonoids and derived in vivo metabolites in human have not been well investigated. ECG was extracted using boiling water and then provided to volunteers for oral administration. Following the ingestion, urine samples were collected from volunteers over 48 h. The extract and urine samples were analyzed using ultra-fast liquid chromatography/quadrupole-time-of-flight tandem mass spectrometry (UFLC-Q-TOF-MS/MS) system to screen and identify flavonoids and derived in vivo metabolites...
April 12, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29628851/renal-oxalate-stones-in-children-with-zellweger-spectrum-disorders
#11
Hamdan Hammad Alhazmi
Peroxisomal biogenesis disorders due to PEX gene defects are classified into many subgroups, of which Zellweger spectrum disorders (ZSDs) represent the major subgroup. The ZSDs are clinical and biochemical disorders divided into three phenotypes: neonatal, adolescence, or adult. Clinical presentations vary with severity of the condition. Metabolic abnormalities occur due to functional peroxisomal defects that could be detected in blood and urine. No cure or definitive management exists to date; only supportive and palliative measures are applied to prevent worse sequelae...
April 2018: Saudi Journal of Anaesthesia
https://www.readbyqxmd.com/read/29570937/application-of-pathways-activity-profiling-to-urine-metabolomics-for-screening-qi-tonifying-biomarkers-and-metabolic-pathways-of-honey-processed-astragalus
#12
Wuping Liu, Chanyi Li, Jing Huang, Jingzhu Liao, Shuangye Liao, Wenjie Ma, Hongyuan Chen, Wen Rui
Honey-processed Astragalus, a widely used Qi-tonifying and immunomodulating herb in traditional Chinese medicine, has strengthened the tonic effects and achieve fewer side effects compared with astragali radix in clinical application. Here, we focus on Qi-tonifying biomarkers and pathways of honey-processed Astragalus using urine metabolomics that provide the basis for building the linkage between metabolites in rat urine and its symptoms. The spleen Qi deficiency model group, normal group, astragali radix group and honey-processed Astragalus group were implemented to evaluate Qi-tonifying effects...
March 23, 2018: Journal of Separation Science
https://www.readbyqxmd.com/read/29543224/laboratory-analysis-of-organic-acids-2018-update-a-technical-standard-of-the-american-college-of-medical-genetics-and-genomics-acmg
#13
Renata C Gallagher, Laura Pollard, Anna I Scott, Suzette Huguenin, Stephen Goodman, Qin Sun
Disclaimer: These ACMG Standards are intended as an educational resource for clinical laboratory geneticists to help them provide quality clinical laboratory genetic services. Adherence to these Standards is voluntary and does not necessarily assure a successful medical outcome. These Standards should not be considered inclusive of all proper procedures and tests, or exclusive of others that are reasonably directed to obtaining the same results. In determining the propriety of any specific procedure or test, clinical laboratory geneticists should apply their professional judgment to the specific circumstances presented by the patient or specimen...
March 15, 2018: Genetics in Medicine: Official Journal of the American College of Medical Genetics
https://www.readbyqxmd.com/read/29542068/high-risk-stratified-neonatal-screening
#14
(no author information available yet)
OBJECTIVES: To ascertain the proportion of neonates and infants presenting with suspicion of an inborn error of metabolism in the centers identified by ICMR for newborn screening. METHODS: A set of red flag signs suggestive IEM were listed by the Taskforce members. The age group was limited to one year as it was understood that most of the small molecules with a severe phenotype would present before the age of one year. Further investigations were tandem mass spectrometry, gas chromatography mass spectrometry and high performance liquid chromatography...
March 15, 2018: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/29516370/novel-mutation-of-ppox-gene-in-a-patient-with-abdominal-pain-and-syndrome-of-inappropriate-antidiuresis
#15
Isabella Tabaro, Giuseppe Reimondo, Giangiacomo Osella, Caterina Aurizi, Pasquale Caraci, Luca Barbieri, Daniela Francesca Giachino, Fabio Sirchia, Massimo Terzolo
PURPOSE: Acute porphyrias are metabolic disorders of heme biosynthesis characterized by acute life-threatening attacks. The diagnosis is often missed since clinical presentation is aspecific mimicking other medical and surgical conditions. Variegate porphyria (VP) is an autosomal dominant inherited disease with incomplete penetrance due to decreased activity of the Protoporphyrinogen Oxydase (PPOX) gene; most VP mutations are family specific. We report the case of a 40 year-old woman who presented many times to the emergency department complaining of unexplained abdominal pain and laboratory investigations showed repeatedly hyponatremia...
March 7, 2018: Endocrine
https://www.readbyqxmd.com/read/29493158/-identification-of-biomarkers-in-urine-of-rats-with-spleen-qi-deficiency-and-biological-significance
#16
Wu-Ping Liu, Chan-Yi Li, Jing Huang, Jing-Zhu Liao, Wen-Jie Ma, Hong-Yuan Chen, Wen Rui
To identify biomarkers for spleen Qi deficiency by analyzing small molecule metabolites in urine, in order to expound the relationship between biomarkers and metabolic pathways. The spleen Qi deficiency model was established through dietary restriction and overstrain. All of the rats received D-xylose absorption experiment and blood routine test. Urine samples were collected in the next day. The urine samples were analyzed using UPLC-Q-TOF-MS to obtain the dataset of urine metabolic group. Principal component analysis (PCA), orthogonal partialleast squares-discriminant analysis (OPLS-DA) and other multivariate statistical methods were employed to evaluate the quality of the dataset and screen out potential biomarkers of spleen Qi deficiency...
December 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29480352/metabolomics-profile-in-abat-deficiency-pre-and-post-treatment
#17
Mary Kay Koenig, Penelope E Bonnen
Metabolomic profiling is an emerging technology in the clinical setting with immediate diagnostic potential for the population of patients with Inborn Errors of Metabolism. We present the metabolomics profile of two ABAT deficiency patients both pre- and posttreatment with flumazenil. ABAT deficiency, also known as GABA-transaminase deficiency, is caused by recessive mutations in the gene ABAT and leads to encephalopathy of variable severity with hypersomnolence, hypotonia, hypomyelination, and seizures. Through metabolomics screening of multiple patient tissues, we identify 2-pyrrolidinone as a biomarker for GABA that is informative in plasma, urine, and CSF...
February 27, 2018: JIMD Reports
https://www.readbyqxmd.com/read/29450233/pharmacogenomics-guided-policy-in-opioid-use-disorder-oud-management-an-ethnically-diverse-case-based-approach
#18
Earl B Ettienne, Edwin Chapman, Mary Maneno, Adaku Ofoegbu, Bradford Wilson, Beverlyn Settles-Reaves, Melissa Clarke, Georgia Dunston, Kevin Rosenblatt
Introduction: Opioid use disorder (OUD) is characterized by a problematic pattern of opioid use leading to clinically-significant impairment or distress. Opioid agonist treatment is an integral component of OUD management, and buprenorphine is often utilized in OUD management due to strong clinical evidence for efficacy. However, interindividual genetic differences in buprenorphine metabolism may result in variable treatment response, leaving some patients undertreated and at increased risk for relapse...
December 2017: Addictive Behaviors Reports
https://www.readbyqxmd.com/read/29435781/fast-and-accurate-quantitative-organic-acid-analysis-with-lc-qtof-ms-facilitates-screening-of-patients-for-inborn-errors-of-metabolism
#19
Irene M L W Körver-Keularts, Ping Wang, Huub W A H Waterval, Leo A J Kluijtmans, Ron A Wevers, Claus-Dieter Langhans, Camilla Scott, Daphna D J Habets, Jörgen Bierau
Since organic acid analysis in urine with gaschromatography-mass spectrometry (GC-MS) is a time-consuming technique, we developed a new liquid chromatography-quadrupole time-of-flight mass spectrometry (LC-QTOF/MS) method to replace the classical analysis for diagnosis of inborn errors of metabolism (IEM). Sample preparation is simple and experimental time short. Targeted mass extraction and automatic calculation of z-scores generated profiles characteristic for the IEMs in our panel consisting of 71 biomarkers for defects in amino acids, neurotransmitters, fatty acids, purine, and pyrimidine metabolism as well as other disorders...
February 12, 2018: Journal of Inherited Metabolic Disease
https://www.readbyqxmd.com/read/29432236/testing-for-inborn-errors-of-metabolism
#20
Jennifer M Kwon
PURPOSE OF REVIEW: This article provides an overview of genetic metabolic disorders that can be identified by metabolic tests readily available to neurologists, such as tests for ammonia, plasma amino acids, and urine organic acids. The limitations of these tests are also discussed, as they only screen for a subset of the many inborn errors of metabolism that exist. RECENT FINDINGS: Advances in next-generation sequencing and the emerging use of advanced metabolomic screening have made it possible to diagnose treatable inborn errors of metabolism that are not included in current newborn screening programs...
February 2018: Continuum: Lifelong Learning in Neurology
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