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https://www.readbyqxmd.com/read/27900721/effect-of-initial-ph-and-ph-adjusted-acid-on-nutrient-recovery-from-hydrolysis-urine-by-combining-acidification-with-evaporation-crystallization
#1
Shanqing Jiang, Xiaochang Wang, Shengjiong Yang, Honglei Shi
Nutrient recovery from human urine is a promising pretreatment of domestic wastewater and provides a sustainable recyclability of nitrogen (N), phosphorus (P), and potassium (K). In this study, we present a method to recover all nutrients from hydrolysis urine (HU) in the form of solid products by combining acidification with evaporation-crystallization. The effect of initial pH (pHinit.) on N retention was investigated, and the optimal pHinit. was further determined by analysis of N retention efficiency. Additionally, crystallization process and product composition based on different pH-adjusted acids were also compared...
November 30, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27898378/ag-n-doped-reduced-graphene-oxide-incorporated-with-molecularly-imprinted-polymer-an-advanced-electrochemical-sensing-platform-for-salbutamol-determination
#2
Junhua Li, Zhifeng Xu, Mengqin Liu, Peihong Deng, Siping Tang, Jianbo Jiang, Haibo Feng, Dong Qian, Lingzhi He
In this work, the metallic silver and non-metallic nitrogen co-doped reduced graphene oxide (Ag-N-RGO) was first synthesized by a simple and cost-effective strategy, and then a molecularly imprinted polymer (MIP) was formed in situ at the surface of the prepared composite via electropolymerization of o-phenylenediamine in the presence of salbutamol as the template molecule. The electrochemical characterizations demonstrate that the bifunctional graphene-based composite shows improved catalytic performance than that of pristine graphene doped with one-component or none...
November 10, 2016: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/27888158/metabolomic-profile-of-children-with-recurrent-respiratory-infections
#3
Sara Bozzetto, Paola Pirillo, Silvia Carraro, Mariangela Berardi, Laura Cesca, Matteo Stocchero, Giuseppe Giordano, Stefania Zanconato, Eugenio Baraldi
Recurrent respiratory infections (RRI) represent a widespread condition which has a severe social and economic impact. Immunostimulants are used for their prevention. It is crucial to better characterize children with RRI to refine their diagnosis and identify effective personalized prevention strategies. Metabolomics is a high-dimensional biological method that can be used for hypothesis-free biomarker profiling, examining a large number of metabolites in a given sample using spectroscopic techniques. Multivariate statistical data analysis then enables us to infer which metabolic information is relevant to the biological characterization of a given physiological or pathological condition...
November 22, 2016: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/27886113/predictors-of-urinary-3-phenoxybenzoic-acid-levels-in-50-north-carolina-adults
#4
Marsha Morgan, Paul Jones, Jon Sobus, Dana Boyd Barr
Limited data are available on the non-chemical stressors that impact adult exposures to pyrethroid insecticides based on urinary biomonitoring. The urinary metabolite, 3-phenoxybenzoic acid (3-PBA), is commonly used to assess human exposure to a number of pyrethroids. In a further analysis of published study data, we quantified urinary 3-PBA levels of 50 adults over a single, 24-h sampling period and examined the associations between the biomarker measurements and selected non-chemical stressors (demographic, lifestyle, and dietary factors)...
November 23, 2016: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/27884207/potential-contribution-of-the-uterine-microbiome-in-the-development-of-endometrial-cancer
#5
Marina R S Walther-António, Jun Chen, Francesco Multinu, Alexis Hokenstad, Tammy J Distad, E Heidi Cheek, Gary L Keeney, Douglas J Creedon, Heidi Nelson, Andrea Mariani, Nicholas Chia
BACKGROUND: Endometrial cancer studies have led to a number of well-defined but mechanistically unconnected genetic and environmental risk factors. One of the emerging modulators between environmental triggers and genetic expression is the microbiome. We set out to inquire about the composition of the uterine microbiome and its putative role in endometrial cancer. METHODS: We undertook a study of the microbiome in samples taken from different locations along the female reproductive tract in patients with endometrial cancer (n = 17), patients with endometrial hyperplasia (endometrial cancer precursor, n = 4), and patients afflicted with benign uterine conditions (n = 10)...
November 25, 2016: Genome Medicine
https://www.readbyqxmd.com/read/27853528/recent-advances-in-understanding-and-managing-urolithiasis
#6
REVIEW
Walter L Strohmaier
During the last few years, there has been relevant progress in both understanding and managing urolithiasis. Our knowledge of stone formation has changed; although the importance of urine biochemistry was questioned by several investigators years ago, the decisive role of cellular processes (induced by oxidative stress) and the renal papilla has only recently been generally accepted as the most important step in stone formation. For calcium oxalate urolithiasis, the formation of papillary calcifications plays a key role and is of prognostic relevance...
2016: F1000Research
https://www.readbyqxmd.com/read/27852937/occupational-phthalate-exposure-and-health-outcomes-among-hairdressing-apprentices
#7
B Kolena, I Petrovičová, M Šidlovská, T Pilka, M Neuschlová, I Valentová, L' Rybanský, T Trnovec
We studied occupational exposure to phthalates from first-morning-void urine sample of hairdressing apprentices by HPLC-MS/MS analyses and association with health status. Metabolites of mono(2-ethyl-5-hydroxyhexyl) phthalate (MEHHP), mono ethyl phthalate (MEP), mono-n-butyl phthalate (MnBP) and mono-iso-butyl phthalate (MiBP) were detected in all urine samples, followed by metabolites mono(2-ethyl-5-oxohexyl) phthalate (MEOHP) and mono(2-etylhexyl) phthalate (MEHP) occurring in 97.06% and 86.76% of samples, respectively...
November 16, 2016: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/27849463/core-temperature-in-service-members-with-and-without-traumatic-amputations-during-a-prolonged-endurance-event
#8
Anne M Andrews, Christina Deehl, Reva L Rogers, Alison L Pruziner
INTRODUCTION: Service members with traumatic amputations may be at an increased risk of elevated core body temperature, since their ability to dissipate heat may decrease with the reduction in body surface area (BSA) after injury. Elevated core temperature can impair physical performance during combat operations potentially putting the service members and their teams at risk. The purpose of this study was to compare core temperature between individuals with and without amputations during a prolonged endurance event...
November 2016: Military Medicine
https://www.readbyqxmd.com/read/27847374/multiplex-urinary-antigen-detection-for-13-streptococcus-pneumoniae-serotypes-improves-diagnosis-of-pneumococcal-pneumonia-in-south-african-hiv-infected-adults
#9
Werner C Albrich, Michael W Pride, Shabir A Madhi, Jan Callahan, Peter V Adrian, Roger French, Nadia van Niekerk, Shite Sebastian, Victor Souza, Jean-Noel Telles, Glaucia Paranhos-Baccalà, Kathrin U Jansen, Keith P Klugman
BACKGROUND: A serotype-specific urinary antigen detection assay (UAD) for 13 serotypes included in the pneumococcal conjugate vaccine (PCV13) was recently reported as a useful diagnostic tool for pneumococcal pneumonia. We aimed to assess the diagnostic accuracy of the UAD in HIV-infected South African adults. METHODS: Urine specimens from a well-defined cohort of HIV-infected South African adults with pneumonia were evaluated retrospectively in the UAD assay. Pneumonia was considered pneumococcal if either sputum Gram stain, sputum culture, blood culture or immunochromatographic (ICT) BinaxNow® S...
November 9, 2016: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/27847293/clinical-value-of-crystalluria-and-quantitative-morphoconstitutional-analysis-of-urinary-calculi
#10
REVIEW
Vincent Frochot, Michel Daudon
Crystalluria is a marker of urine supersaturation with substances deriving from metabolic disorders, inherited diseases or drugs. The investigation of crystalluria must be done according to a protocol which includes the delivery to the laboratory of a proper urine sample, the use of a microscope equipped with polarized light, the accurate knowledge of urine pH, and a comprehensive examination of the crystals, which is based on their identification, quantification and size measurement. For unusual crystals, infrared spectroscopy may also be needed...
November 12, 2016: International Journal of Surgery
https://www.readbyqxmd.com/read/27846788/urinary-oxalate-to-creatinine-ratios-in-healthy-turkish-schoolchildren
#11
Ismail Dursun, İlknur Çelik, Hakan M Poyrazoglu, Kader Köse, Esen Tanrıkulu, Habibe Sahin, Kenan Yılmaz, Ahmet Öztürk, Sibel Yel, Zübeyde Gündüz, Ruhan Düşünsel
AIM: we aimed to establish reference values for urinary oxalate to creatinine ratios in healthy children aged 6-15 years and to investigate the relationship between their nutritional habits and oxalate excretion. MATERIALS AND METHODS: Random urine specimens from 953 healthy children aged 6-15 years were obtained and analyzed for oxalate and creatinine. Additionally, a 24-h dietary recall form was prepared and given to them. The ingredient composition of the diet was calculated...
November 15, 2016: Renal Failure
https://www.readbyqxmd.com/read/27833513/plasma-and-urinary-type-iv-collagen-levels-for-early-detection-of-nephropathy-in-type-2-diabetes-mellitus-patients
#12
K Balu Mahendran, M Vijaya Bhaskar, K Santha, R Inmozhi, K K Perumal
BACKGROUND: Diabetic nephropathy is a major complication with high morbidity and mortality, and leads to end stage renal disease (ESRD). Type IV collagen is the main component of the glomerular basement membrane (GBM) and the extracellular matrix. The thickening of the GBM is due to accumulation of type IV collagen and alterations in its structure and composition. AIM: The aim of this study was to evaluate the association of plasma and urine type IV collagen with albuminuria status and to determine the clinical implications of type IV collagen as a marker in the early stage of diabetic nephropathy...
October 2016: International Journal of Health Sciences
https://www.readbyqxmd.com/read/27833172/cranberry-intervention-in-patients-with-prostate-cancer-prior-to-radical-prostatectomy-clinical-pathological-and-laboratory-findings
#13
Vladimir Student, Ales Vidlar, Jan Bouchal, Jana Vrbkova, Zdenek Kolar, Milan Kral, Pavel Kosina, Jitka Vostalova
BACKGROUND AND OBJECTIVES: Recently, we described an inverse association between cranberry supplementation and serum prostate specific antigen (PSA) in patients with negative biopsy for prostate cancer (PCa) and chronic nonbacterial prostatitis. This double blind placebo controlled study evaluates the effects of cranberry consumption on PSA values and other markers in men with PCa before radical prostatectomy. METHODS: Prior to surgery, 64 patients with prostate cancer were randomized to a cranberry or placebo group...
November 10, 2016: Biomedical Papers of the Medical Faculty of the University Palacký, Olomouc, Czechoslovakia
https://www.readbyqxmd.com/read/27830586/effect-of-dietary-quebracho-tannin-extract-on-feed-intake-digestibility-excretion-of-urinary-purine-derivatives-and-milk-production-in-dairy-cows
#14
Anika Henke, Uta Dickhoefer, Edwin Westreicher-Kristen, Karin Knappstein, Joachim Molkentin, Mario Hasler, Andreas Susenbeth
The aim of this study was to evaluate the effects of dietary Quebracho tannin extract (QTE) on feed intake, apparent total tract digestibility (ATTD), excretion of urinary purine derivatives (PD) and milk composition and yield in dairy cows. Fifty Holstein cows were divided into two groups. To reach a similar performance of both groups, cows were divided according to their milk yield, body weight, days in milk and number of lactations at the start of the experiment averaging 33.2 ± 8.2 kg/d, 637 ± 58 kg, 114 ± 73 d and 2...
November 10, 2016: Archives of Animal Nutrition
https://www.readbyqxmd.com/read/27825389/maternal-arsenic-exposure-and-gestational-diabetes-and-glucose-intolerance-in-the-new-hampshire-birth-cohort-study
#15
Shohreh F Farzan, Anala Gossai, Yu Chen, Lisa Chasan-Taber, Emily Baker, Margaret Karagas
BACKGROUND: Gestational diabetes mellitus (GDM) is a major pregnancy complication with detrimental effects for both mothers and their children. Accumulating evidence has suggested a potential role for arsenic (As) exposure in the development of GDM, but current studies have not assessed As exposure from water, urine or toenail samples. METHODS: We investigated the association between As exposure and risk of glucose intolerance and GDM among 1151 women enrolled in the New Hampshire Birth Cohort Study...
November 8, 2016: Environmental Health: a Global Access Science Source
https://www.readbyqxmd.com/read/27820757/organophosphate-pesticide-urinary-metabolites-among-latino-immigrants-north-carolina-farmworkers-and-non-farmworkers-compared
#16
Thomas A Arcury, Paul J Laurienti, Haiying Chen, Timothy D Howard, Dana Boyd Barr, Dana C Mora, Phillip Summers, Sara A Quandt
BACKGROUND: This analysis documents detections and concentrations of the six dialkylphosphate (DAP) urinary metabolite of organophosphorus (OP) pesticides among North Carolina Latino migrant farmworkers, with comparison to non-farmworker Latino immigrants. METHODS: Participants provided up to four urine samples during the 2012 and 2013 agricultural seasons. Composite urine samples for each year were analyzed. RESULTS: DAP urinary metabolite detections were similar in farmworkers and non-farmworker; for example, for 2012, 75...
November 2016: Journal of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/27788147/exploring-the-lean-phenotype-of-glutathione-depleted-mice-thiol-amino-acid-and-fatty-acid-profiles
#17
Amany K Elshorbagy, Fredrik Jernerén, Cheryl L Scudamore, Fiona McMurray, Heather Cater, Tertius Hough, Roger Cox, Helga Refsum
BACKGROUND: Although reduced glutathione (rGSH) is decreased in obese mice and humans, block of GSH synthesis by buthionine sulfoximine (BSO) results in a lean, insulin-sensitive phenotype. Data is lacking about the effect of BSO on GSH precursors, cysteine and glutamate. Plasma total cysteine (tCys) is positively associated with stearoyl-coenzyme A desaturase (SCD) activity and adiposity in humans and animal models. OBJECTIVE: To explore the phenotype, amino acid and fatty acid profiles in BSO-treated mice...
2016: PloS One
https://www.readbyqxmd.com/read/27778049/geographic-location-is-an-important-determinant-of-risk-factors-for-stone-disease
#18
Ethan B Fram, Matthew D Sorensen, Vincent G Bird, Joshua M Stern
Some regions are known to have an increased burden of urolithiasis. Urolithiasis is known to be affected by weather patterns, particularly high ambient temperatures. To identify geographic differences in risk factors, we compared metabolic information for 1254 patients in two geographically distinct regions, New York and Florida, with per sample adjustment for ambient weather. We observed that patients in New York were more likely to have low urine volume, but also lower total urinary calcium (168 vs 216 mg, p = 0...
October 24, 2016: Urolithiasis
https://www.readbyqxmd.com/read/27776634/facile-synthesis-of-a-boronate-affinity-sorbent-from-mesoporous-nanomagnetic-polyhedral-oligomeric-silsesquioxanes-composite-and-its-application-for-enrichment-of-catecholamines-in-human-urine
#19
Haibo He, Ziqing Zhou, Chen Dong, Xin Wang, Qiong-Wei Yu, Yunyi Lei, Liqiang Luo, Yuqi Feng
A boronate-decorated nanomagnetic organic-inorganic hybrid material was facilely synthesized by utilizing the nanomagnetic polyhedral oligomeric silsesquioxanes (POSS) composite (Fe3O4@POSS) as the base platform. A simple copolymerization occurred between 3-acrylamidophenylboronic acid (AAPBA) and the residual end vinyl groups supplied by the substrate. Here the special emphasis was placed on the octavinyl POSS, which not only acted as the building blocks for a hybrid architecture but also facilitated the process of grafting boronate groups onto the surface of POSS based nanomagnetic composite (Fe3O4@POSS)...
November 9, 2016: Analytica Chimica Acta
https://www.readbyqxmd.com/read/27773291/ultrasound-assisted-combined-molecularly-imprinted-polymer-for-selective-extraction-of-nicotinamide-in-human-urine-and-milk-samples-spectrophotometric-determination-and-optimization-study
#20
Arash Asfaram, Mehrorang Ghaedi, Kheibar Dashtian
Ultrasound-assisted dispersive solid phase microextraction followed by UV-vis spectrophotometer (UA-DSPME-UV-vis) was designed for extraction and preconcentration of nicotinamide (vitamin B3) by HKUST-1 metal organic framework (MOF) based molecularly imprinted polymer (MIP). This new material was characterized by FTIR and FE-SEM techniques. The preliminary Plackett-Burman design was used for screening and subsequently the central composite design justifies significant terms and possible construction of mathematical equation which give the individual and cooperative contribution of variables like HKUST-1-MOF-NA-MIP mass, sonication time, temperature, eluent volume, pH and vortex time...
January 2017: Ultrasonics Sonochemistry
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