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https://www.readbyqxmd.com/read/29222505/a-comparison-of-methods-to-measure-central-and-peripheral-oxytocin-concentrations-in-human-and-non-human-primates
#1
Arthur Lefevre, Raphaëlle Mottolese, Manon Dirheimer, Carmine Mottolese, Jean-René Duhamel, Angela Sirigu
Oxytocin (OT) concentration in the blood is considered to be a marker of its action in the brain. However, two problems have emerged when measuring OT level in the blood. First, it is unclear whether different methods of assessment lead to similar OT values. Second, it is unclear if plasma OT concentrations is informative on what OT does in the brain. To clarify these issues, we collected cerebrospinal fluid (CSF) from the brain ventricle of 25 patients during surgery to compare with plasma OT after simultaneous blood withdrawal...
December 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29221627/alkaline-diet-and-metabolic-acidosis-practical-approaches-to-the-nutritional-management-of-chronic-kidney-disease
#2
Larissa Rodrigues Neto Angéloco, Gabriela Cristina Arces de Souza, Elen Almeida Romão, Paula Garcia Chiarello
The kidneys play an extremely important role in maintaining the body acid-base balance by excreting nonvolatile acids and regenerating and reabsorbing bicarbonate in the kidney tubules. As the individual loses their kidney function, renal excretion of nonvolatile acid produced by metabolism of the diet is impaired, resulting in low-grade metabolic acidosis. With this in mind, it is relevant to better understand the dietary aspects related to the acid-base balance in chronic kidney disease metabolic acidosis and try to provide possible strategies for the nutritional management of these cases...
December 5, 2017: Journal of Renal Nutrition
https://www.readbyqxmd.com/read/29221436/prevalence-and-related-risk-factors-of-chronic-kidney-disease-among-adults-in-luxembourg-evidence-from-the-observation-of-cardiovascular-risk-factors-oriscav-lux-study
#3
Ala'a Alkerwi, Nicolas Sauvageot, Illiasse El Bahi, Charles Delagardelle, Jean Beissel, Stephanie Noppe, Paul J Roderick, Jennifer S Mindell, Saverio Stranges
BACKGROUND: Evidence on stages of renal impairment and related risk factors in Luxembourg is lacking. This study aimed to assess the prevalence of chronic kidney disease (CKD) and identify potential correlates among the general population, using the recent definition suggested by the Kidney Disease Improving Global Outcomes guidelines. METHODS: Data analysed from 1361 participants aged 18-69 years, enrolled in the Observation of Cardiovascular Risk Factors in Luxembourg (ORISCAV-LUX) study, 2007-08...
December 8, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/29220372/the-monomeric-form-of-neisseria-dna-mimic-protein-dmp19-prevents-dna-from-binding-to-the-histone-like-hu-protein
#4
Ming-Fen Huang, Shin-Jen Lin, Tzu-Ping Ko, Yi-Ting Liao, Kai-Cheng Hsu, Hao-Ching Wang
DNA mimicry is a direct and effective strategy by which the mimic competes with DNA for the DNA binding sites on other proteins. Until now, only about a dozen proteins have been shown to function via this strategy, including the DNA mimic protein DMP19 from Neisseria meningitides. We have shown previously that DMP19 dimer prevents the operator DNA from binding to the transcription factor NHTF. Here, we provide new evidence that DMP19 monomer can also interact with the Neisseria nucleoid-associated protein HU...
2017: PloS One
https://www.readbyqxmd.com/read/29220347/assessing-the-benefits-of-five-years-of-different-approaches-to-treatment-of-urogenital-schistosomiasis-a-score-project-in-northern-mozambique
#5
Anna E Phillips, Pedro H Gazzinelli-Guimaraes, Herminio O Aurelio, Josefo Ferro, Rassul Nala, Michelle Clements, Charles H King, Alan Fenwick, Fiona M Fleming, Neerav Dhanani
BACKGROUND: In Mozambique, schistosomiasis is highly endemic across the whole country. The Schistosomiasis Consortium for Operational Research and Evaluation (SCORE) coordinates a five-year study that has been implemented in various African countries, including Mozambique. The overall goal of SCORE was to better understand how to best apply preventive chemotherapy with praziquantel (PZQ) for schistosomiasis control by evaluating the impact of alternative treatment approaches. METHODS: This was a cluster-randomised trial that compared the impact of different treatment strategies in study areas with prevalence among school children of ≥21% S...
December 8, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29220343/two-techniques-to-sample-non-volatiles-in-breath-exemplified-by-methadone
#6
Göran Ljungkvist, Shahid Ullah, Åsa Tinglev, Karina Stein, Björn Bake, Per Larsson, Ann-Charlotte Almstrand, Emilia Viklund, Oscar Hammar, Sören Sandqvist, Olof Beck, Anna-Carin Olin
The particles in exhaled breath provide a promising matrix for the monitoring of pathological processes in the airways, and also allow exposure to exogenous compounds to be to assessed. The collection is easy to perform and is non-invasive. The aim of the present study is to assess if an exogenous compound-methadone-is distributed in the lining fluid of small airways, and to compare two methods for collecting methadone in particles in exhaled breath. Exhaled particles were collected from 13 subjects receiving methadone maintenance treatment...
December 8, 2017: Journal of Breath Research
https://www.readbyqxmd.com/read/29220059/fluorescence-detection-and-removal-of-copper-from-water-using-a-biobased-and-biodegradable-2d-soft-material
#7
Meng Li, Zhijiang Liu, Shuwen Wang, David G Calatayud, Wei-Hong Zhu, Tony D James, Lidong Wang, Boyang Mao, Hui-Ning Xiao
We have developed a green and robust fluorogenic (λex = 410 nm, λem = 510 nm) cellulose membrane using graphene oxide (GO) as a construct for simultaneous copper ion recognition and filtration at environmentally relevant levels. The detection limit and removal limit of Cu2+ are 7.3 × 10-7 M and 1000 ppm, respectively. The simplicity and scalability achieved for the detection and removal of metal ions in waste water is particularly noteworthy given the significant problems associated with metal ion pollution of drinking water...
December 8, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/29219869/comparison-of-vegetarian-versus-animal-based-low-protein-diets-on-estimated-glomerular-filtration-rates-in-chronic-kidney-disease-patients-a-systematic-review-protocol
#8
Kruti Patel, Kim W Hoover
The objective of this review is to evaluate studies to determine the effect of a low-protein, vegetarian diet as compared to a low-protein, animal-based diet on estimated glomerular filtration rates (eGFR) in adults with chronic kidney disease (CKD).
December 2017: JBI Database of Systematic Reviews and Implementation Reports
https://www.readbyqxmd.com/read/29219839/efficient-exfoliation-of-layered-materials-by-waste-liquor
#9
Jiheng Ding, Hongran Zhao, Yan Zheng, Qiaolei Wang, Hao Chen, Huimin Dou, Haibin Yu
Based on the unique material properties, two-dimensional (2D) nanomaterials such as graphene, molybdenum disulfide (MoS2), and boron nitride (BN) have been attracting increasing research interest. The potential of 2D materials in the form of nanoplatelets used as new materials will be important to both nanomaterials and advanced materials. Usually water is considered as the ideal dispersed medium, while the essential hydrophobicity of 2D nanoplatelets and limitation of mass production became the quite serious obstacles for the usage in various fields...
December 8, 2017: Nanotechnology
https://www.readbyqxmd.com/read/29218984/catalytic-organic-reactions-in-water-toward-sustainable-society
#10
Taku Kitanosono, Koichiro Masuda, Pengyu Xu, Shu Kobayashi
Traditional organic synthesis relies heavily on organic solvents for a multitude of tasks, including dissolving the components and facilitating chemical reactions, because many reagents and reactive species are incompatible or immiscible with water. Given that they are used in vast quantities as compared to reactants, solvents have been the focus of environmental concerns. Along with reducing the environmental impact of organic synthesis, the use of water as a reaction medium also benefits chemical processes by simplifying operations, allowing mild reaction conditions, and sometimes delivering unforeseen reactivities and selectivities...
December 8, 2017: Chemical Reviews
https://www.readbyqxmd.com/read/29218435/educational-review-measurement-of-gfr-in-special-populations
#11
Guido Filler, Misan Lee
IMPORTANCE: Changes in kidney function are typically followed by the sequential estimation of glomerular filtration rate (eGFR). Formulae for eGFR work well on a population basis, but there are well-known conditions where they do not work. OBJECTIVE: The purpose of this review is to summarize the existing literature on special populations in the pediatric age range and provide recommendations on how to estimate GFR in these populations. FINDINGS: The reliability of creatinine depends on muscle mass, while cystatin C (not widely available) is limited by inflammation and changes in protein catabolism...
December 7, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/29217892/bowel-migration-of-dormant-chronic-ambulatory-peritoneal-dialysis-catheter-a-vexed-problem-not-avoided-by-flushing
#12
P Vincent, J Gopinathan, R Narayanan
Delayed bowel erosion by peritoneal dialysis catheter is rare with fewer than thirty cases having been reported in the literature. This complication is usually encountered when the catheter is kept dormant. Two cases have also been reported with catheters in active use. The risk factors for bowel erosion include immunosuppression, diverticulosis, and amyloidosis. An 80-year-old male with chronic kidney disease Stage 5 due to hypertensive nephrosclerosis underwent chronic ambulatory peritoneal dialysis catheter insertion...
November 2017: Indian Journal of Nephrology
https://www.readbyqxmd.com/read/29217675/ten-year-mortality-in-the-wise-study-women-s-ischemia-syndrome-evaluation
#13
Tanya S Kenkre, Pankaj Malhotra, B Delia Johnson, Eileen M Handberg, Diane V Thompson, Oscar C Marroquin, William J Rogers, Carl J Pepine, C Noel Bairey Merz, Sheryl F Kelsey
BACKGROUND: The WISE study (Women's Ischemia Syndrome Evaluation) was a prospective cohort study of 936 clinically stable symptomatic women who underwent coronary angiography to evaluate symptoms and signs of ischemia. Long-term mortality data for such women are limited. METHODS AND RESULTS: Obstructive coronary artery disease (CAD) was defined as ≥50% stenosis on angiography by core laboratory. We conducted a National Death Index search to assess the mortality of women who were alive at their final WISE contact date...
December 2017: Circulation. Cardiovascular Quality and Outcomes
https://www.readbyqxmd.com/read/29217578/a-small-molecule-inhibitor-of-trpc5-ion-channels-suppresses-progressive-kidney-disease-in-animal-models
#14
Yiming Zhou, Philip Castonguay, Eriene-Heidi Sidhom, Abbe R Clark, Moran Dvela-Levitt, Sookyung Kim, Jonas Sieber, Nicolas Wieder, Ji Yong Jung, Svetlana Andreeva, Jana Reichardt, Frank Dubois, Sigrid C Hoffmann, John M Basgen, Mónica S Montesinos, Astrid Weins, Ashley C Johnson, Eric S Lander, Michael R Garrett, Corey R Hopkins, Anna Greka
Progressive kidney diseases are often associated with scarring of the kidney's filtration unit, a condition called focal segmental glomerulosclerosis (FSGS). This scarring is due to loss of podocytes, cells critical for glomerular filtration, and leads to proteinuria and kidney failure. Inherited forms of FSGS are caused by Rac1-activating mutations, and Rac1 induces TRPC5 ion channel activity and cytoskeletal remodeling in podocytes. Whether TRPC5 activity mediates FSGS onset and progression is unknown. We identified a small molecule, AC1903, that specifically blocks TRPC5 channel activity in glomeruli of proteinuric rats...
December 8, 2017: Science
https://www.readbyqxmd.com/read/29217491/intravoxel-incoherent-motion-diffusion-weighted-imaging-for-the-assessment-of-renal-fibrosis-of-chronic-kidney-disease-a-preliminary-study
#15
Wei Mao, Jianjun Zhou, Mengsu Zeng, Yuqin Ding, Lijie Qu, Caizhong Chen, Xiaoqiang Ding, Yaqiong Wang, Caixia Fu, Feng Gu
PURPOSE: To investigate the potential of Intravoxel incoherent motion diffusion-weighted imaging(IVIM-DWI) for the assessment of renal fibrosis in chronic kidney disease (CKD), using histopathology as a reference standard. METHODS: Eighty-five CKD patients and twenty healthy volunteers were recruited in this study. IVIM-DWI was performed in all of the participants, and all of the CKD patients underwent renal biopsy. The mean values of the true diffusion coefficient (D), pseudo diffusion coefficient (D*) and perfusion fraction (f) in the renal cortex and medulla were compared between the CKD patients and healthy volunteers...
December 4, 2017: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/29217305/longitudinal-weight-change-during-ckd-progression-and-its-association-with-subsequent-mortality
#16
Elaine Ku, Joel D Kopple, Kirsten L Johansen, Charles E McCulloch, Alan S Go, Dawei Xie, Feng Lin, L Lee Hamm, Jiang He, John W Kusek, Sankar D Navaneethan, Ana C Ricardo, Hernan Rincon-Choles, Miroslaw Smogorzewski, Chi-Yuan Hsu
BACKGROUND: Few studies have investigated the changes in weight that may occur over time among adults with the progression of chronic kidney disease (CKD). Whether such weight changes are independently associated with death after the onset of end-stage renal disease has also not been rigorously examined. STUDY DESIGN: Prospective cohort study. SETTING & PARTICIPANTS: We studied 3,933 participants of the Chronic Renal Insufficiency Cohort (CRIC) Study, a longitudinal cohort of patients with CKD...
December 4, 2017: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/29216760/intraoperative-mannitol-not-essential-during-partial-nephrectomy
#17
Caleb Alan Cooper, Cheuk Fan Shum, Clinton D Bahler, Chandru P Sundaram
OBJECTIVE: Intraoperative mannitol is routinely administered for renoprotection in partial nephrectomy (PN). However, there is a paucity of evidence supporting mannitol's renoprotective effect. We performed a retrospective study of mannitol's efficacy in PN. METHODS: Using an institutional database, patients undergoing PN from 2006-2016 were retrospectively identified and divided into two groups based on mannitol use. Cases with missing serum creatinine measurements were excluded...
December 7, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/29215545/metal-artifact-free-and-dose-efficient-computed-tomography-imaging-of-a-cardiac-prosthetic-valve-using-spectral-shaping-of-the-x-ray-beam-a-case-report
#18
Christoph Schabel, Nishant K Sekaran, Andrew Wang, Lynne Hurwitz
Bioprosthetic valve (BPV) thrombosis can be challenging to diagnose with cardiac computed tomography owing to metal artifacts of the BPV. In this case report, an optimized metal artifact reduction protocol using a third-generation dual-source multidetector computed tomographic scanner with high kVp (Sn150kVp) and tin (Sn) filtration and high temporal resolution yielded high-quality, artifact-free, dynamic images of a thrombosed mitral BPV.
December 5, 2017: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/29215520/preeclampsia-and-long-term-renal-function-in-women-who-underwent-kidney-transplantation
#19
Valerie Vannevel, Kathleen Claes, David Baud, Yvan Vial, Delaviz Golshayan, Eugene W Yoon, Ryan Hodges, Anne Le Nepveu, Peter G Kerr, Claire Kennedy, Mary Higgins, Elisabeth Resch, Philipp Klaritsch, Tim Van Mieghem
OBJECTIVE: Preeclampsia often complicates pregnancies after maternal kidney transplantation. We aimed to assess whether preeclampsia is associated with kidney function decline either during the pregnancy or in the long term. METHODS: We performed an international multicenter retrospective cohort study. Renal function at conception, pregnancy outcomes, and short- and long-term graft outcomes were collected for women who were pregnant after renal transplantation and had transplant and obstetric care at the participating centers...
December 4, 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29215435/noninvasive-fibrosis-markers-and-chronic-kidney-disease-among-adults-with-nonalcoholic-fatty-liver-in-usa
#20
Karn Wijarnpreecha, Charat Thongprayoon, Melissa Scribani, Patompong Ungprasert, Wisit Cheungpasitporn
BACKGROUND/AIMS: Studies have shown that nonalcoholic fatty liver disease (NAFLD) is associated with an increased risk of chronic kidney disease (CKD). However, it is unknown whether severe liver fibrosis is associated with a higher prevalence of CKD among NAFLD. We examined the diagnostic performance of noninvasive fibrosis markers in identifying prevalent CKD among NAFLD. METHODS: This study represents an analysis of the National Health and Nutrition Examination Survey conducted in the USA between 1988 and 1994...
December 5, 2017: European Journal of Gastroenterology & Hepatology
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