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https://www.readbyqxmd.com/read/28107750/effect-of-clinically-approved-hdac-inhibitors-on-plasmodium-leishmania-and-schistosoma-parasite-growth
#1
Ming Jang Chua, Megan S J Arnold, Weijun Xu, Julien Lancelot, Suzanne Lamotte, Gerald F Späth, Eric Prina, Raymond J Pierce, David P Fairlie, Tina S Skinner-Adams, Katherine T Andrews
Malaria, schistosomiasis and leishmaniases are among the most prevalent tropical parasitic diseases and each requires new innovative treatments. Targeting essential parasite pathways, such as those that regulate gene expression and cell cycle progression, is a key strategy for discovering new drug leads. In this study, four clinically approved anti-cancer drugs (Vorinostat, Belinostat, Panobinostat and Romidepsin) that target histone/lysine deacetylase enzymes were examined for in vitro activity against Plasmodium knowlesi, Schistosoma mansoni, Leishmania amazonensis and L...
December 23, 2016: International Journal for Parasitology, Drugs and Drug Resistance
https://www.readbyqxmd.com/read/28107707/uremia-modulates-the-phenotype-of-aortic-smooth-muscle-cells
#2
Marie Madsen, Annemarie Aarup, Sebastian Albinsson, Karsten Hartvigsen, Charlotte M Sørensen, Karolina Turczynska, Lars B Nielsen, Tanja Xenia Pedersen
BACKGROUND AND AIMS: Chronic kidney disease leads to uremia and markedly accelerates atherosclerosis. Phenotypic modulation of smooth muscle cells (SMCs) in the arterial media plays a key role in accelerating atherogenesis. The aim of this study was to investigate whether uremia per se modulates the phenotype of aortic SMCs in vivo. METHODS: Moderate uremia was induced by 5/6 nephrectomy in apolipoprotein E knockout (ApoE(-/-)) and wildtype C57Bl/6 mice. Plasma analysis, gene expression, histology, and myography were used to determine uremia-mediated changes in the arterial wall...
December 23, 2016: Atherosclerosis
https://www.readbyqxmd.com/read/28107603/desmopressin-octostim%C3%A2-before-a-native-kidney-biopsy-can-reduce-the-risk-for-biopsy-complications-in-patients-with-impaired-renal-function-a-pilot-study
#3
Björn Peters, Henrik Hadimeri, Johan Mölne, Salmir Nasic, Gert Jensen, Bernd Stegmayr
AIM: To evaluate if the administration of desmopressin alters the risk for renal biopsy complications. METHODS: A multicenter registry containing 576 native kidney biopsies (NKb) with a serum creatinine above 150 µmol/L in 527 patients (372 men and 155 women, median age 61 years) was used. Most of the data were prospective. At one of the hospitals all biopsies with creatinine above 150 µmol/L received desmopressin before biopsies (NKb 204). These were compared to outcome of biopsy complications against other centres where desmopressin was not given (NKb 372)...
January 20, 2017: Nephrology
https://www.readbyqxmd.com/read/28107583/chronic-hepatitis-c-and-chronic-kidney-disease-advances-limitations-and-unchartered-territories
#4
Manuel Mendizabal, K Rajender Reddy
Over the past few years, treatment options for chronic hepatitis C virus (HCV) infection have evolved dramatically. The current approved interferon-free direct-acting antiviral (DAA) regimens have been shown to be safe and effective with sustained virologic response (SVR) rates of >90% in most patients. Unique issues yet remain such as the challenges in patients with impaired renal function or decompensated cirrhosis. Patients with stage 4-5 chronic kidney disease (CKD) have a higher prevalence of HCV infection compared with the general population...
January 20, 2017: Journal of Viral Hepatitis
https://www.readbyqxmd.com/read/28107550/enhanced-trpc-channel-mediated-ca-2-influx-in-the-cells-with-phospholipase-c-%C3%AE-1-overexpression-its-possible-role-in-coronary-artery-spasm
#5
Kazuo Murakami, Tomohiro Osanai, Makoto Tanaka, Kimitaka Nishizaki, Takahiko Kinjo, Tomohiro Tanno, Yuji Ishida, Akiko Suzuki, Tomohide Endo, Hirofumi Tomita, Ken Okumura
We reported that coronary spasm was induced in the transgenic mice with the increased phospholipase C (PLC)-δ1 activity. We investigated the effect of enhanced PLC-δ1 on Ca(2+) influx and its underlying mechanisms. We used human embryonic kidney (HEK)-293 and coronary arteries-smooth-muscle cells (CASMC). Intracellular free Ca(2+) concentration ([Ca(2+) ]i ) (nM) was measured by fura-2, and Ca(2+) influx was evaluated by the increase in [Ca(2+) ]i after addition of extracellular Ca(2+) . Acetylcholine (ACh) was used to induce Ca(2+) influx...
January 20, 2017: Fundamental & Clinical Pharmacology
https://www.readbyqxmd.com/read/28107527/effects-of-the-administration-of-25-oh-vitamin-d3-in-an-experimental-model-of-chronic-kidney-disease-in-animals-null-for-1-alpha-hydroxylase
#6
Noelia Torremadé, Milica Bozic, David Goltzman, Elvira Fernandez, José M Valdivielso
The final step in vitamin D activation is catalyzed by 1-alpha-hydroxylase (CYP27B1). Chronic kidney disease (CKD) is characterized by low levels of both 25(OH)D3 and 1,25(OH)2D3 provoking secondary hyperparathyroidism (2HPT). Therefore, treatments with active or native vitamin D compounds are common in CKD to restore 25(OH)D3 levels and also to decrease PTH. This study evaluates the dose of 25(OH)D3 that restores parathyroid hormone (PTH) and calcium levels in a model of CKD in CYP27B1-/- mice. Furthermore, we compare the safety and efficacy of the same dose in CYP27B1+/+ animals...
2017: PloS One
https://www.readbyqxmd.com/read/28107490/diagnostic-value-of-urine-tissue-inhibitor-of-metalloproteinase-2-and-insulin-like-growth-factor-binding-protein-7-for-acute-kidney-injury-a-meta-analysis
#7
Yuanyuan Su, Zhiyan Gong, Yan Wu, Yuan Tian, Xiaohui Liao
BACKGROUND: Tissue inhibitor of metalloproteinase-2 (TIMP-2) and insulin-like growth factor-binding protein-7 (IGFBP7) are both involved in renal tubular epithelial cell cycle arrest in acute kidney injury (AKI). Several recent studies showed that urine TIMP-2 times IGFBP7 ([TIMP-2]*[IGFBP7]) is a promising biomarker to predict AKI. METHODS: The aim of this meta-analysis was to assess the diagnostic value of urine [TIMP-2]*[IGFBP7] for early diagnosis of AKI. Relevant studies were retrieved from the PubMed, EMBASE, and Cochrane Library databases...
2017: PloS One
https://www.readbyqxmd.com/read/28107445/beta-glucans-supplementation-associates-with-reduction-in-p-cresyl-sulfate-levels-and-improved-endothelial-vascular-reactivity-in-healthy-individuals
#8
Carmela Cosola, Maria De Angelis, Maria Teresa Rocchetti, Eustacchio Montemurno, Valentina Maranzano, Giuseppe Dalfino, Carlo Manno, Annapaola Zito, Michele Gesualdo, Marco Matteo Ciccone, Marco Gobbetti, Loreto Gesualdo
BACKGROUND: Oat and barley beta-glucans are prebiotic fibers known for their cholesterol-lowering activity, but their action on the human gut microbiota metabolism is still under research. Although the induction of short-chain fatty acids (SCFA) following their ingestion has previously been reported, no study has investigated their effects on proteolytic uremic toxins p-cresyl sulfate (pCS) and indoxyl sulfate (IS) levels, while others have failed to demonstrate an effect on the endothelial function measured through flow-mediated dilation (FMD)...
2017: PloS One
https://www.readbyqxmd.com/read/28107415/serum-uric-acid-and-progression-of-kidney-disease-a-longitudinal-analysis-and-mini-review
#9
Ching-Wei Tsai, Shih-Yi Lin, Chin-Chi Kuo, Chiu-Ching Huang
BACKGROUND: Increasing evidence supports the association between hyperuricemia and incident chronic kidney disease (CKD); however, there are conflicting data regarding the role of hyperuricemia in the progression of CKD. This study retrospectively assessed the longitudinal association between uric acid (UA) level and CKD progression in a Chinese population lived in Taiwan. METHODS: Patients with physician diagnosis of hyperuricemia or receiving urate-lowering therapy between 2003 and 2005 were identified in the electronic medical records (EMR) of a tertiary medical center and were followed up until December 31, 2011...
2017: PloS One
https://www.readbyqxmd.com/read/28107397/efficacy-and-safety-of-everolimus-for-maintenance-immunosuppression-of-kidney-transplantation-a-meta-analysis-of-randomized-controlled-trials
#10
Jinyu Liu, Dong Liu, Juan Li, Lan Zhu, Chengliang Zhang, Kai Lei, Qiling Xu, Ruxu You
BACKGROUND: Conversion to everolimus is often used in kidney transplantation to overcome calcineurin inhibitor (CNI) nephrotoxicity but there is conflicting evidence for this approach. OBJECTIVES: To investigate the benefits and harm from randomized clinical trials (RCTs) involving the conversion from CNI to everolimus after kidney transplantation. METHODS: Databases were searched up to March 2016. Two reviewers independently assessed trials for eligibility and quality, and extracted data...
2017: PloS One
https://www.readbyqxmd.com/read/28107341/complex-dynamics-of-virus-spread-from-low-infection-multiplicities-implications-for-the-spread-of-oncolytic-viruses
#11
Ignacio A Rodriguez-Brenes, Andrew Hofacre, Hung Fan, Dominik Wodarz
While virus growth dynamics have been well-characterized in several infections, data are typically collected once the virus population becomes easily detectable. Earlier dynamics, however, remain less understood. We recently reported unusual early dynamics in an experimental system using adenovirus infection of human embryonic kidney (293) cells. Under identical experimental conditions, inoculation at low infection multiplicities resulted in either robust spread, or in limited spread that eventually stalled, with both outcomes occurring with approximately equal frequencies...
January 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28107277/suppressive-effect-of-1%C3%AE-25-dihydroxyvitamin-d3-on-th17-immune-responses-in-kidney-transplant-recipients-with-tacrolimus-based-immunosuppression
#12
Byung Ha Chung, Bo-Mi Kim, Kyoung Chan Doh, Ji-Won Min, Mi-La Cho, Kyoung Woon Kim, Chul Woo Yang
BACKGROUND: The aim of this study was to investigate whether 1α,25-dihydroxyvitamin D3 can regulate Th17-related-immune responses in kidney transplant recipients (KTRs) being treated with tacrolimus (Tac)-based immunosuppression. METHODS: First, we evaluated the effect of 1α,25-dihydroxyvitamin D3 (1,25(OH)2D3) on Th17-immune responses in an in vitro study using peripheral blood mononuclear cells (PBMCs) from healthy volunteers or KTRs. Next, we investigated mTOR/STAT3 signaling as a mechanism by which 1,25(OH)2D3 exerted its effect on T cells using the Jurkat cell line...
October 6, 2016: Transplantation
https://www.readbyqxmd.com/read/28107215/metabolic-cardiac-and-renal-effects-of-the-slow-hydrogen-sulfide-releasing-molecule-gyy4137-during-resuscitated-septic-shock-in-swine-with-pre-existing-coronary-artery-disease
#13
Benedikt L Nubaum, Josef Vogt, Ulrich Wachter, Oscar McCook, Martin Wepler, José Matallo, Enrico Calzia, Michael Gröger, Michael Georgieff, Mark E Wood, Matthew Whiteman, Peter Radermacher, Sebastian Hafner
Decreased levels of endogenous hydrogen sulfide (H2S) contribute to atherosclerosis, whereas equivocal data are available on H2S effects during sepsis. Moreover, H2S improved glucose utilization in anaesthetized, ventilated, hypothermic mice, but normothermia and/or sepsis blunted this effect. The metabolic effects of H2S in large animals are controversial. Therefore, we investigated the effects of the H2S donor GYY4137 during resuscitated, fecal peritonitis-induced septic shock in swine with genetically and diet-induced coronary artery disease (CAD)...
January 19, 2017: Shock
https://www.readbyqxmd.com/read/28107105/optimised-deconjugation-of-androgenic-steroid-conjugates-in-bovine-urine
#14
Mikael Pedersen, Henrik L Frandsen, Jens H Andersen
After administration of steroids to animals the steroids are partially metabolised in the liver and kidney to phase 2 metabolites, i.e., glucuronic acid or sulphate conjugates. During analysis these conjugated metabolites are normally deconjugated enzymatically with aryl sulphatase and glucuronidase resulting in free steroids in the extract. It is well known that some sulphates are not deconjugated using aryl sulphatase; instead, for example, solvolysis can be used for deconjugation of these aliphatic sulphates...
January 20, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28106924/incidence-clinicopathologic-features-and-fusion-transcript-landscape-of-translocation-renal-cell-carcinomas
#15
Marion Classe, Gabriel G Malouf, Xiaoping Su, Hui Yao, Erika J Thompson, Denaha J Doss, Valérie Grégoire, Julien Lenobin, Jean-Christophe Fantoni, Hélène Sudour-Bonnange, David Khayat, Sébastien Aubert, Nizar M Tannir, Xavier Leroy
AIMS: Translocation renal cell carcinoma (tRCC) is a rare subtype of kidney tumour characterized by translocations involving the transcription factor TFE3 or TFEB. tRCC was introduced into the World Health Organization classification in 2004, but much is still unknown about the natural history, clinicopathologic features, and outcomes of the disease. The aim of this study was to describe the landscape of fusion transcript in a large single-institution series of FISH confirmed tRCCs and then to confront it to morphological and clinical data...
January 20, 2017: Histopathology
https://www.readbyqxmd.com/read/28106907/subsequent-malignancies-among-long-term-survivors-of-hodgkin-lymphoma-and-non-hodgkin-lymphoma-a-pooled-analysis-of-german-cancer-registry-data-1990-2012
#16
Nadia Baras, Stefan Dahm, Jörg Haberland, Martin Janz, Katharina Emrich, Klaus Kraywinkel, Abdulgabar Salama
The increased risk of subsequent primary malignancies (SPM) in survivors of adult-onset Hodgkin lymphoma (HL) and non-Hodgkin lymphoma (NHL) remains a challenging clinical problem worldwide. The German cancer registry database, pooled from 14 federal states, was used to calculate the standardized incidence ratio (SIR) and excess absolute risk (EAR) of SPM in 128 587 patients registered with first primary HL/NHL between 1990 and 2012. Conversely, SIRs were also calculated for a subsequent HL/NHL following other first cancers...
January 20, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28106734/glycative-stress-and-its-defense-machinery-glyoxalase-1-in-renal-pathogenesis
#17
REVIEW
Yosuke Hirakawa, Reiko Inagi
Chronic kidney disease is a major public health problem around the world. Because the kidney plays a role in reducing glycative stress, renal dysfunction results in increased glycative stress. In turn, glycative stress, especially that due to advanced glycated end products (AGEs) and their precursors such as reactive carbonyl compounds, exacerbates chronic kidney disease and is related to premature aging in chronic kidney disease, whether caused by diabetes mellitus or otherwise. Factors which hinder a sufficient reduction in glycative stress include the inhibition of anti-glycation enzymes (e...
January 17, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28106712/very-low-protein-diet-vlpd-reduces-metabolic-acidosis-in-subjects-with-chronic-kidney-disease-the-nutritional-light-signal-of-the-renal-acid-load
#18
Biagio Raffaele Di Iorio, Lucia Di Micco, Stefania Marzocco, Emanuele De Simone, Antonietta De Blasio, Maria Luisa Sirico, Luca Nardone, On Behalf Of Ubi Study Group
BACKGROUND: Metabolic acidosis is a common complication of chronic kidney disease; current guidelines recommend treatment with alkali if bicarbonate levels are lower than 22 mMol/L. In fact, recent studies have shown that an early administration of alkali reduces progression of CKD. The aim of the study is to evaluate the effect of fruit and vegetables to reduce the acid load in CKD. METHODS: We conducted a case-control study in 146 patients who received sodium bicarbonate...
January 17, 2017: Nutrients
https://www.readbyqxmd.com/read/28106663/the-role-of-laser-doppler-flowmetry-tests-serum-angiopoietin-2-asymmetric-and-symmetric-dimethylarginine-to-predict-outcome-in-chronic-kidney-disease
#19
János Nemcsik, Orsolya Cseprekál, József Egresits, Jan Kielstein, Philipp Kümpers, Alexander Lukasz, Ádám Tabák, Adrienn Marton, Zsófia K Németh, Zoltán Járai, Gabriella Godina, László Sallai, Katalin Farkas, István Kiss, András Tislér
OBJECTIVE: The role of biochemical and functional markers of microvascular dysfunction to predict cardiovascular outcomes in nondialyzed chronic kidney disease (CKD) remains unclear. In this prospective cohort study, we assessed whether biochemical [serum level of angiopoietin-2 (Ang-2), asymmetric and symmetric dimethylarginin] and functional (laser Doppler flowmetry) measures of microvascular function predicted cardiovascular events, cardiovascular and all-cause mortality in CKD patients...
January 18, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28106614/study-of-intrapatient-variability-and-reproducibility-of-quantitative-tumor-perfusion-parameters-evaluated-with-dynamic-contrast-enhanced-ultrasonography
#20
Nathalie Lassau, Bénédicte Coiffier, Laura Faivre, Baya Benatsou, Sophie Bidault, Elizabeth Girard, Bernard Asselain, Stéphanie Pitre-Champagnat, Serge Koscielny
OBJECTIVES: Dynamic contrast-enhanced (DCE) ultrasonography (US) is a functional imaging technique enabling quantitative assessment of solid tumor perfusion in metastatic patients treated with antiangiogenic therapies.The objective of this prospective single-center study was to evaluate in real-life conditions (in routine clinical practice) the intrapatient variability and reproducibility of DCE-US parameters. MATERIALS AND METHODS: Each patient provided written informed consent and had 2 DCE-US examinations (preprandial and postprandial) at baseline, day 15, and 1 month after treatment initiation...
January 18, 2017: Investigative Radiology
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