keyword
MENU ▼
Read by QxMD icon Read
search

urine composition

keyword
https://www.readbyqxmd.com/read/28095889/evolution-of-gut-microbiota-composition-from-birth-to-24-weeks-in-the-infantmet-cohort
#1
Cian J Hill, Denise B Lynch, Kiera Murphy, Marynka Ulaszewska, Ian B Jeffery, Carol Anne O'Shea, Claire Watkins, Eugene Dempsey, Fulvio Mattivi, Kieran Touhy, R Paul Ross, C Anthony Ryan, Paul W O' Toole, Catherine Stanton
BACKGROUND: The gut is the most extensively studied niche of the human microbiome. The aim of this study was to characterise the initial gut microbiota development of a cohort of breastfed infants (n = 192) from 1 to 24 weeks of age. METHODS: V4-V5 region 16S rRNA amplicon Illumina sequencing and, in parallel, bacteriological culture. The metabolomic profile of infant urine at 4 weeks of age was also examined by LC-MS. RESULTS: Full-term (FT), spontaneous vaginally delivered (SVD) infants' microbiota remained stable at both phylum and genus levels during the 24-week period examined...
January 17, 2017: Microbiome
https://www.readbyqxmd.com/read/28094353/surfactant-free-synthesis-of-three-dimensional-nitrogen-doped-hierarchically-porous-carbon-and-its-application-as-an-electrode-modification-material-for-simultaneous-sensing-of-ascorbic-acid-dopamine-and-uric-acid
#2
Anaclet Nsabimana, Jianping Lai, Suping Li, Pan Hui, Zhongyuan Liu, Guobao Xu
Three-dimensional N-doped hierarchically porous carbon (3D NHPC) was synthesized successfully without using any surfactant or etching agent. This simple and effective synthesis method was accomplished by solvothermal synthesis followed by pyrolysis. The physical morphology and chemical composition of 3D NHPC were verified by scanning electron microscopy, nitrogen adsorption-desorption, and X-ray photoelectron spectroscopy. Its structural studies reveal that it exhibits a micro-mesoporous hierarchical structure and contains C, O and N atoms forming different functional groups...
January 17, 2017: Analyst
https://www.readbyqxmd.com/read/28092466/clinical-performance-of-the-solana%C3%A2-point-of-care-trichomonas-assay-from-clinician-collected-vaginal-swabs-and-urine-specimens-from-symptomatic-and-asymptomatic-women
#3
C A Gaydos, J Schwebke, J Dombrowski, J Marrazzo, J Coleman, B Silver, M Barnes, L Crane, P Fine
BACKGROUND: Solana® (Quidel) is a new rapid (<40 min.) point-of-care (POC) test for qualitative detection of Trichomonas vaginalis (TV) DNA. The assay has two steps: 1) specimen preparation, and 2) amplification and detection using isothermal Helicase-Dependent Amplification (HDA). The objective was to demonstrate the performance of Solana for vaginal swabs and female urines based on comparison to wet mount and TV culture. Performance was also compared to the Aptima-TV assay. METHODS: Urine and four clinician-collected vaginal swabs were collected...
January 16, 2017: Expert Review of Molecular Diagnostics
https://www.readbyqxmd.com/read/28080060/pharmacokinetics-of-the-individual-major-components-of-polymyxin-b-and-colistin-in-rats
#4
Sivashangarie Sivanesan, Kade Roberts, Jiping Wang, Soon-Ee Chea, Philip E Thompson, Jian Li, Roger L Nation, Tony Velkov
The pharmacokinetics of polymyxin B1, polymyxin B2, colistin A, and colistin B were investigated in a rat model following intravenous administration (0.8 mg/kg) of each individual component. Plasma and urine concentrations were determined by LC-MS/MS, and plasma protein binding was measured by ultracentrifugation. Total and unbound pharmacokinetic parameters for each component were calculated using noncompartmental analysis. All of the polymyxin components had a similar clearance, volume of distribution, elimination half-life, and urinary recovery...
January 12, 2017: Journal of Natural Products
https://www.readbyqxmd.com/read/28069228/cu-sns-sno2-nanoparticles-as-novel-sorbent-for-dispersive-micro-solid-phase-extraction-of-atorvastatin-in-human-plasma-and-urine-samples-by-high-performance-liquid-chromatography-with-uv-detection-application-of-central-composite-design-ccd
#5
Mehdi Dastkhoon, Mehrorang Ghaedi, Arash Asfaram, Maryam Arabi, Abbas Ostovan, Alireza Goudarzi
Separation and detection of residual drug in biological fluids has directly related to human health in term of their beneficial or side effects. In biological fluid samples (complex matrix which containing drug at very low level) conduction of preliminary efficient technique as good choice for pre-concentration and clean-up of real sample before their instrumental analysis is highly recommended. In this result technique, based on nano-structure material which poses higher available surface area and larger member of reactive sites led to significant improvement in characteristic performance of analytical method...
May 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28058761/d-optimal-mixture-design-optimization-of-a-hplc-method-for-simultaneous-determination-of-commonly-used-antihistaminic-parent-molecules-and-their-active-metabolites-in-human-serum-and-urine
#6
Selvakumar Kanthiah, Kannappan Valliappan
This present study describes a specific, precise, sensitive and accurate method for simultaneous determination of hydroxyzine, loratadine, terfenadine, rupatadine and their main active metabolites cetirizine, desloratadine and fexofenadine in serum and urine by using meclizine as an internal standard. Solid phase extraction method for sample clean-up and preconcentration of analytes was carried out by using Phenomenex Strata-X-C and Strata X polymeric cartridges. Chromatographic analysis was performed on a Phenomenex cyano (150 mm x 4...
January 6, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/28046176/effect-of-different-feeding-regimens-on-energy-and-protein-utilization-and-partitioning-for-maintenance-and-growth-in-pre-weaned-lambs-reared-artificially
#7
A S Danso, P C H Morel, P R Kenyon, H T Blair
Estimation of metabolizable energy (ME) requirement for maintenance (ME) and growth (ME) in pre-weaned lambs have been limited to milk-only fed lambs. This study aimed to determine energy and nitrogen metabolisability of milk and pellets when fed together, compare the growth and chemical body composition of lambs fed varying levels of pellets in addition to milk, and to estimate ME, ME, and the CP:ME ratio requirements for growth. The study included 32 twin-born Romney-cross ram lambs. Four lambs were slaughtered at 24 h post-partum to estimate initial body composition and the remaining 28 were assigned to 1 of 4 treatment groups of 7...
December 2016: Journal of Animal Science
https://www.readbyqxmd.com/read/28046142/nitrogen-utilization-efficiency-and-prediction-of-nitrogen-excretion-in-sheep-offered-fresh-perennial-ryegrass
#8
Y G Zhao, A W Gordon, N E O'Connell, T Yan
Nitrogen excretion from sheep production systems is an important source of nitrate, ammonia, and nitrous oxide responsible for groundwater pollution and global warming. The present study aimed to identify key parameters influencing N utilization efficiency and develop prediction equations for manure N, feces N, and urine N outputs in sheep. Data used were collected from 82 sheep offered fresh perennial ryegrass () as the sole diet in 6 metabolism experiments (data from non-grass-only diets were not used). Sheep were from breeds of Highlander, Texel, Scottish Blackface, and Swaledale at the age of 5 to 18 mo and weighing from 24...
December 2016: Journal of Animal Science
https://www.readbyqxmd.com/read/28043369/impact-of-acute-metabolic-acidosis-on-the-acid-base-balance-in-follicular-fluid-and-blood-in-dairy-cattle
#9
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/28042917/profiling-and-identification-of-epicatechin-metabolites-in-rats-using-ultra-high-performance-liquid-chromatography-coupled-with-linear-trap-orbitrap-mass-spectrometer
#10
Zhanpeng Shang, Fei Wang, Shengyun Dai, Jianqiu Lu, Xiaodan Wu, Jiayu Zhang
(-)-Epicatechin (EC), an optical antipode of (+)-catechin (C), possesses many potential significant health benefits. However, the in vivo metabolic pathway of EC has not been clarified yet. In this study, an efficient strategy based on ultra-high performance liquid chromatography coupled with linear ion trap-Orbitrap mass spectrometer was developed to profile and characterize EC metabolites in rat urine, feces, plasma, and various tissues. Meanwhile, post-acquisition data-mining methods including high-resolution extracted ion chromatogram (HREIC), multiple mass defect filters (MMDFs), and diagnostic product ions (DPIs) were utilized to screen and identify EC metabolites from HR-ESI-MS(1) to ESI-MS(n) stage...
January 2, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/28030766/boosted-sensor-performance-by-surface-modification-of-bifunctional-rht-type-metal-organic-framework-with-nanosized-electrochemically-reduced-graphene-oxide
#11
Cong Li, Tingting Zhang, Jingyu Zhao, He Liu, Bo Zheng, Yue Gu, Xiaoyi Yan, Yaru Li, Nannan Lu, Zhiquan Zhang, Guodong Feng
The surface and interface could be designed to enhance properties of electrocatalysts, and they are regarded as the key characteristics. This report describes surface modification of a bifunctional rht-type metal-organic framework (MOF, Cu-TDPAT) with nanosized electrochemically reduced graphene oxide (n-ERGO). The hybrid strategy results in a Cu-TDPAT-n-ERGO sensor with sensitive and selective response toward hydrogen peroxide (H2O2). Compared with Cu-TDPAT, Cu-TDPAT-n-ERGO exhibits significantly enhanced electrocatalytic activities, highlighting the importance of n-ERGO in boosting their electrocatalytic activity...
January 10, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28029393/urinary-uromodulin-and-risk-of-urinary-tract-infections-the%C3%A2-cardiovascular-health-study
#12
Pranav S Garimella, Traci M Bartz, Joachim H Ix, Michel Chonchol, Michael G Shlipak, Prasad Devarajan, Michael R Bennett, Mark J Sarnak
BACKGROUND: Laboratory studies suggest that urinary uromodulin, the most common protein in the urine of healthy adults, may protect against urinary tract infection (UTI). Epidemiologic studies evaluating this relationship in humans are lacking. STUDY DESIGN: Prospective longitudinal cohort study. SETTING & PARTICIPANTS: 953 participants enrolled in the Cardiovascular Health Study. PREDICTOR: Uromodulin assayed using enzyme-linked immunosorbent assay in spot urine samples...
October 28, 2016: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/28028134/fibroblast-growth-factor-23-levels-associate-with-aki-and-death-in-critical-illness
#13
David E Leaf, Kirolos A Jacob, Anand Srivastava, Margaret E Chen, Marta Christov, Harald Jüppner, Venkata S Sabbisetti, Aline Martin, Myles Wolf, Sushrut S Waikar
Elevated plasma levels of the osteocyte-derived hormone fibroblast growth factor 23 (FGF23) have emerged as a powerful biomarker of cardiovascular disease and death in patients with CKD. Whether elevated urinary or plasma FGF23 levels are prospectively associated with AKI and death in critically ill patients is unknown. We therefore conducted a prospective cohort study of 350 critically ill patients admitted to intensive care units at an academic medical center to investigate whether higher urinary FGF23 levels associate with the composite end point of AKI or in-hospital mortality (AKI/death)...
December 27, 2016: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28018759/could-the-use-of-an-enhanced-recovery-protocol-in-laparoscopic-donor-nephrectomy-be-an-incentive-for-live-kidney-donation
#14
Aparna Rege, Harold Leraas, Deepak Vikraman, Kadiyala Ravindra, Todd Brennan, Tim Miller, Julie Thacker, Debra Sudan
INTRODUCTION AND BACKGROUND: Gastrointestinal (GI) recovery after major abdominal surgery can be delayed from an ongoing need for narcotic analgesia thereby prolonging hospitalization. Enhanced recovery after surgery (ERAS) is a multimodal perioperative care pathway designed to facilitate early recovery after major surgery by maintaining preoperative body composition and physiological organ function and modifying the stress response induced by surgical exposure. Enhanced recovery programs (ERPs) in colorectal surgery have decreased the duration of postoperative ileus and the hospital stay while showing equivalent morbidity, mortality, and readmission rates in comparison to the traditional standard of care...
November 22, 2016: Curēus
https://www.readbyqxmd.com/read/28018704/synthesis-and-characterization-of-molecular-imprinting-polymer-microspheres-of-piperine-extraction-of-piperine-from-spiked-urine
#15
Rachel Marcella Roland, Showkat Ahmad Bhawani
Molecularly imprinted polymer (MIP) microspheres for Piperine were synthesized by precipitation polymerization with a noncovalent approach. In this research Piperine was used as a template, acrylic acid as a functional monomer, ethylene glycol dimethacrylate as a cross-linker, and 2,2'-azobisisobutyronitrile (AIBN) as an initiator and acetonitrile as a solvent. The imprinted and nonimprinted polymer particles were characterized by using Fourier transform infrared spectroscopy (FT-IR) and Scanning Electron Microscopy (SEM)...
2016: Journal of Analytical Methods in Chemistry
https://www.readbyqxmd.com/read/28013017/direct-detection-of-cysteine-using-functionalized-batio3-nanoparticles-film-based-self-powered-biosensor
#16
Sophia Selvarajan, Nagamalleswara Rao Alluri, Arunkumar Chandrasekhar, Sang-Jae Kim
Simple, novel, and direct detection of clinically important biomolecules have continuous demand among scientific community as well as in market. Here, we report the first direct detection and facile fabrication of a cysteine-responsive, film-based, self-powered device. NH2 functionalized BaTiO3 nanoparticles (BT-NH2 NPs) suspended in a three-dimensional matrix of an agarose (Ag) film, were used for cysteine detection. BaTiO3 nanoparticles (BT NPs) semiconducting as well as piezoelectric properties were harnessed in this study...
December 6, 2016: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28008148/dysbiosis-of-urinary-microbiota-is-positively-correlated-with-type-2-diabetes-mellitus
#17
Fengping Liu, Zongxin Ling, Yonghong Xiao, Longxian Lv, Qing Yang, Baohong Wang, Haifeng Lu, Li Zheng, Ping Jiang, Wei Wang, Lanjuan Li
Type 2 diabetes mellitus (T2DM) may be associated with altered urinary microbiota in female patients. We investigated alterations of urinary microbiota in Chinese female T2DM patients, and explored the associations between urinary microbiota and a patient's fasting blood glucose (FBG), urine glucose (UGLU), age, menstrual status, and body mass index (BMI). Midstream urine was collected from 70 female T2DM patients and 70 healthy females. Microbial diversity and composition were analyzed using the Illumina MiSeq sequencing platform by targeting the hypervariable V3-V4 regions of the 16S rRNA gene...
December 19, 2016: Oncotarget
https://www.readbyqxmd.com/read/28005561/risk-factors-for-collegiate-swimmers-hospitalized-with-exertional-rhabdomyolysis
#18
Margo R Stanfa, Navjeet N Silles, Amanda Cooper, Sara Arena, Kristin Landis-Piwowar, Carrie Aprik, Tamara Hew-Butler
OBJECTIVE: To identify midseason risk factors for symptomatic exertional rhabdomyolysis (sER) in swimmers after a novel upper body workout. DESIGN: Retrospective (1) survey and (2) analyses of observational laboratory data conducted over a 16-week training period, 2 months before sER. SETTING: Midwest University. PARTICIPANTS: Thirty-four collegiate swimmers. INDEPENDENT VARIABLES: (1) Motivation, symptoms, and supplements for survey variables...
January 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/27995333/graphene-nanoflakes-on-transparent-glass-electrode-sensor-for-electrochemical-sensing-of-anti-diabetic-drug
#19
Jagriti Narang, Nitesh Malhotra, Chaitali Singhal, Rishabh Bhatia, Vikas Kathuria, Manan Jain
Metformin (Mf) plays a major role in controlling insulin level of individuals at risk of developing diabetes mellitus. Overdose of Mf can cause lactic acidosis, diarrhoea, cough, or hoarseness, etc. These particulars point out the identification for selective and sensitive methods of Mf determination. In the present work, graphene nanoflakes-polymethylene blue (GNF-PMB) nano-composites were developed onto fluorine-doped tin oxide (SnO2/F) coated glass substrates for electrochemical sensing of Mf using cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS)...
December 19, 2016: Bioprocess and Biosystems Engineering
https://www.readbyqxmd.com/read/27990164/phase-i-ii-trial-of-autologous-bone-marrow-stem-cell-transplantation-with-a-three-dimensional-woven-fabric-scaffold-for-periodontitis
#20
Shunsuke Baba, Yoichi Yamada, Akira Komuro, Yoritaka Yotsui, Makoto Umeda, Kimishige Shimuzutani, Sayaka Nakamura
Regenerative medicine is emerging as a promising option, but the potential of autologous stem cells has not been investigated well in clinical settings of periodontal treatment. In this clinical study, we evaluated the safety and efficacy of a new regenerative therapy based on the surgical implantation of autologous mesenchymal stem cells (MSCs) with a biodegradable three-dimensional (3D) woven-fabric composite scaffold and platelet-rich plasma (PRP). Ten patients with periodontitis, who required a surgical procedure for intrabony defects, were enrolled in phase I/II trial...
2016: Stem Cells International
keyword
keyword
101238
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"