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https://www.readbyqxmd.com/read/28318627/vascular-adhesion-protein-1-enhances-neutrophil-infiltration-by-generation-of-hydrogen-peroxide-in-renal-ischemia-reperfusion-injury
#1
Shinji Tanaka, Tetsuhiro Tanaka, Takahisa Kawakami, Hideki Takano, Mai Sugahara, Hisako Saito, Yoshiki Higashijima, Junna Yamaguchi, Reiko Inagi, Masaomi Nangaku
Vascular adhesion protein-1 (VAP-1) is a unique molecule since it acts as an adhesion molecule as well as an ectoenzyme catalyzing oxidative deamination of primary amines and generates hydrogen peroxide in the extracellular space. While VAP-1 is implicated in various inflammatory diseases, its role in acute kidney injury is less characterized. Here we studied VAP-1 expression in the kidney and the effect of its inhibition in a rat model of renal ischemia/reperfusion injury. VAP-1 was predominantly expressed in pericytes, which released enzymatically active enzyme...
March 16, 2017: Kidney International
https://www.readbyqxmd.com/read/28315773/the-time-enzyme-in-melatonin-biosynthesis-in-fish-day-night-expressions-of-three-aralkylamine-n-acetyltransferase-genes-in-three-spined-stickleback
#2
Ewa Kulczykowska, Agnieszka Kleszczyńska, Magdalena Gozdowska, Ewa Sokołowska
In vertebrates, aralkylamine N-acetyltransferase (AANAT; EC 2.3.1.87) is a time-keeping enzyme in melatonin (Mel) biosynthesis. Uniquely in fish, there are several AANAT isozymes belonging to two AANAT subfamilies, AANAT1 and AANAT2, which are encoded by distinct genes. The different substrate preferences, kinetics and spatial expression patterns of isozymes indicate that they may have different functions. In the three-spined stickleback (Gasterosteus aculeatus), there are three genes encoding three AANAT isozymes...
March 15, 2017: Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
https://www.readbyqxmd.com/read/28299616/promise-of-sglt2-inhibitors-in-heart-failure-diabetes-and-beyond
#3
REVIEW
Pieter Martens, Chantal Mathieu, Frederik H Verbrugge
This review provides mechanistic insight in the pleiotropic effects of sodium-glucose transporter-2 (SGLT-2) inhibitors with particular interest to the pathophysiology of heart failure. The SGLT-2 inhibitor empagliflozin has recently demonstrated an unprecedented 38% reduction in cardiovascular mortality in patients with diabetes. Despite modest effects on long-term glycemic control, highly significant reductions in heart failure admissions and end-stage kidney disease were observed. SGLT-2 inhibitors are the latest approved class of glucose-lowering agents...
March 2017: Current Treatment Options in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28296980/recent-progress-of-the-aregpkd-registry-study-on-autosomal-recessive-polycystic-kidney-disease
#4
Kathrin Ebner, Franz Schaefer, Max Christoph Liebau
Autosomal recessive polycystic kidney disease (ARPKD) is a rare monogenic disease with a severe phenotype often presenting prenatally or in early childhood. With its obligate renal and hepatic involvement, ARPKD is one of the most important indications for liver and/or kidney transplantation in childhood. Marked phenotypic variability is observed, the genetic basis of which is largely unknown. Treatment is symptomatic and largely empiric as evidence-based guidelines are lacking. Therapeutic initiatives for ARPKD face the problem of highly variable cohorts and lack of clinical or biochemical risk markers without clear-cut clinical end points...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28295888/regimes-of-biomolecular-ultrasmall-nanoparticle-interactions
#5
Luca Boselli, Ester Polo, Valentina Castagnola, Kenneth A Dawson
Ultrasmall nanoparticles (USNPs), usually defined as NPs with core in the size range 1-3 nm, are a class of nanomaterials which show unique physicochemical properties, often different from larger NPs of the same material. Moreover, there are also indications that USNPs might have distinct properties in their biological interactions. For example, recent in vivo experiments suggest that some USNPs escape the liver, spleen, and kidney, in contrast to larger NPs that are strongly accumulated in the liver. Here, we present a simple approach to study the biomolecular interactions at the USNPs bio-nanointerface, opening up the possibility to systematically link these observations to microscopic molecular principles...
March 15, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28293239/major-histocompatibility-complex-class-i-chain-related-a-mica-molecules-relevance-in-solid-organ-transplantation
#6
REVIEW
Ajay Kumar Baranwal, Narinder K Mehra
An ever growing number of reports on graft rejection and/or failure even with good HLA matches have highlighted an important role of non-HLA antigens in influencing allograft immunity. The list of non-HLA antigens that have been implicated in graft rejection in different types of organ transplantation has already grown long. Of these, the Major Histocompatibility Complex class I chain-related molecule A (MICA) is one of the most polymorphic and extensively studied non-HLA antigenic targets especially in the kidney transplantation...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28287110/t-cells-and-autoimmune-kidney-disease
#7
REVIEW
Abel Suárez-Fueyo, Sean J Bradley, David Klatzmann, George C Tsokos
Glomerulonephritis is traditionally considered to result from the invasion of the kidney by autoantibodies and immune complexes from the circulation or following their formation in situ, and by cells of the innate and the adaptive immune system. The inflammatory response leads to the proliferation and dysfunction of cells of the glomerulus, and invasion of the interstitial space with immune cells, resulting in tubular cell malfunction and fibrosis. T cells are critical drivers of autoimmunity and related organ damage, by supporting B-cell differentiation and antibody production or by directly promoting inflammation and cytotoxicity against kidney resident cells...
March 13, 2017: Nature Reviews. Nephrology
https://www.readbyqxmd.com/read/28286505/mda5-induces-a-stronger-interferon-response-than-rig-i-to-gcrv-infection-through-a-mechanism-involving-the-phosphorylation-and-dimerization-of-irf3-and-irf7-in-cik-cells
#8
Quanyuan Wan, Chunrong Yang, Youliang Rao, Zhiwei Liao, Jianguo Su
Retinoic acid-inducible gene I (RIG-I) and melanoma differentiation-associated gene 5 (MDA5) are critical cytosolic sensors that trigger the production of interferons (IFNs). Though their recognition functions are well identified, their unique roles in the downstream signal transduction remain to be elucidated. Herein, we report the differential effect between grass carp (Ctenopharyngodon idella) MDA5 (CiMDA5) and CiRIG-I on the production of various IFNs upon grass carp reovirus (GCRV) infection in C. idella kidney (CIK) cell line...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28283661/structure-guided-schema-recombination-generates-diverse-chimeric-channelrhodopsins
#9
Claire N Bedbrook, Austin J Rice, Kevin K Yang, Xiaozhe Ding, Siyuan Chen, Emily M LeProust, Viviana Gradinaru, Frances H Arnold
Integral membrane proteins (MPs) are key engineering targets due to their critical roles in regulating cell function. In engineering MPs, it can be extremely challenging to retain membrane localization capability while changing other desired properties. We have used structure-guided SCHEMA recombination to create a large set of functionally diverse chimeras from three sequence-diverse channelrhodopsins (ChRs). We chose 218 ChR chimeras from two SCHEMA libraries and assayed them for expression and plasma membrane localization in human embryonic kidney cells...
March 10, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28280697/international-kidney-paired-donation-transplantations-to-increase-kidney-transplant-of-o-group-and-highly-sensitized-patient-first-report-from-india
#10
Vivek B Kute, Himanshu V Patel, Pankaj R Shah, Pranjal R Modi, Veena R Shah, Sayyed J Rizvi, Bipin C Pal, Priya S Shah, Pavan S Wakhare, Saiprasad G Shinde, Vijay A Ghodela, Umesh T Varyani, Minaxi H Patel, Varsha B Trivedi, Hargovind L Trivedi
AIM: To report the first international living related two way kidney paired donation (KPD) transplantation from India which occurred on 17(th) February 2015 after legal permission from authorization committee. METHODS: Donor recipient pairs were from Portugal and India who were highly sensitized and ABO incompatible with their spouse respectively. The two donor recipient pairs had negative lymphocyte cross-matching, flow cross-match and donor specific antibody in two way kidney exchange with the intended KPD donor...
February 24, 2017: World Journal of Transplantation
https://www.readbyqxmd.com/read/28280325/novel-route-synthesis-of-porous-and-solid-gold-nanoparticles-for-investigating-their-comparative-performance-as-contrast-agent-in-computed-tomography-scan-and-effect-on-liver-and-kidney-function
#11
Farooq Aziz, Ayesha Ihsan, Aalia Nazir, Ishaq Ahmad, Sadia Zafar Bajwa, Asma Rehman, Abdoulaye Diallo, Waheed S Khan
Gold nanoparticles (GNPs) with dimension in the range of 1-100 nm have a prominent role in a number of biomedical applications like imaging, drug delivery, and cancer therapy owing to their unique optical features and biocompatibility. In this work, we report a novel technique for the synthesis of two types of GNPs namely porous gold nanoparticles (PGNPs) and solid gold nanoparticles (SGNPs). PGNPs of size 35 nm were fabricated by reduction of gold (III) solution with lecithin followed by addition of L-ascorbic acid and tri-sodium citrate, whereas SGNPs with a dimension of 28 nm were prepared by reflux method using lecithin as a single reducing agent...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28279437/coronary-plaque-characteristics-in-hemodialysis-dependent-patients-as-assessed-by-optical%C3%A2-coherence-tomography
#12
Chee Yang Chin, Mitsuaki Matsumura, Akiko Maehara, Wenbin Zhang, Cheolmin Tetsumin Lee, Myong Hwa Yamamoto, Lei Song, Yasir Parviz, Nisha B Jhalani, Sumit Mohan, Lloyd E Ratner, David J Cohen, Ori Ben-Yehuda, Gregg W Stone, Richard A Shlofmitz, Tsunekazu Kakuta, Gary S Mintz, Ziad A Ali
Coronary arteries in patients with chronic kidney disease (CKD) have been shown to exhibit more extensive atherosclerosis and calcium. We aimed to assess characteristics of coronary plaque in hemodialysis (HD)-dependent patients using optical coherence tomography (OCT). This was a multicenter, retrospective study of 124 patients with stable angina who underwent OCT imaging. Sixty-two HD-dependent patients who underwent pre-intervention OCT for coronary artery disease were compared 1:1 with a cohort of patients without CKD, matched for age, diabetes mellitus, gender, and culprit vessel...
February 9, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28279161/methylated-site-display-msd-aflp-a-sensitive-and-affordable-method-for-analysis-of-cpg-methylation-profiles
#13
Toshiki Aiba, Toshiyuki Saito, Akiko Hayashi, Shinji Sato, Harunobu Yunokawa, Toru Maruyama, Wataru Fujibuchi, Hisaka Kurita, Chiharu Tohyama, Seiichiroh Ohsako
BACKGROUND: It has been pointed out that environmental factors or chemicals can cause diseases that are developmental in origin. To detect abnormal epigenetic alterations in DNA methylation, convenient and cost-effective methods are required for such research, in which multiple samples are processed simultaneously. We here present methylated site display (MSD), a unique technique for the preparation of DNA libraries. By combining it with amplified fragment length polymorphism (AFLP) analysis, we developed a new method, MSD-AFLP...
March 9, 2017: BMC Molecular Biology
https://www.readbyqxmd.com/read/28276159/comparative-proteome-analysis-of-wild-type-and-klotho-knockout-mouse-kidneys-using-a-combination-of-maldi-ims-and-lc-ms-ms
#14
Yoko Fujino, Tomoko Minamizaki, Ikue Hayashi, Asako Kawakami, Takaaki Miyaji, Kaoru Sakurai, Hirotaka Yoshioka, Katsuyuki Kozai, Mitsugi Okada, Yuji Yoshiko
PURPOSE: Mutation of the klotho gene in mice elicits a syndrome resembling accelerated human aging. However, there is limited evidence for the role of Klotho in the kidney. We conducted a comparative proteome analysis of wild-type (WT) and Klotho-knockout (kl(-/-) ) mouse kidneys to identify proteins involved in Klotho deficiency. EXPERIMENTAL DESIGN: MALDI-IMS of frozen kidney sections from 7-week-old male WT and kl(-/-) mice was used to determine genotype-specific differences in the MS distribution...
March 8, 2017: Proteomics. Clinical Applications
https://www.readbyqxmd.com/read/28275931/the-concentration-of-vanadium-in-pathologically-altered-human-kidneys
#15
Aleksandra Wilk, Barbara Wiszniewska, Dagmara Szypulska-Koziarska, Paulina Kaczmarek, Maciej Romanowski, Jacek Różański, Marcin Słojewski, Kazimierz Ciechanowski, Małgorzata Marchelek-Myśliwiec, Elżbieta Kalisińska
Vanadium has a unique and beneficial effect on both humans and animal organisms; however, excessive amount of the above-mentioned metal can cause many alterations in tissues and organs, including the kidneys. The aim of the study was to determine the concentration of vanadium (V) in the kidneys removed from patients due to lesions of various etiologies, including the rejection of the transplanted kidneys. Additionally, we determined the influence of selected biological and environmental factors on the V concentration...
March 9, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28272459/enoblock-a-unique-small-molecule-inhibitor-of-the-non-glycolytic-functions-of-enolase-alleviates-the-symptoms-of-type-2-diabetes
#16
Haaglim Cho, JungIn Um, Ji-Hyung Lee, Woong-Hee Kim, Wan Seok Kang, So Hun Kim, Hyung-Ho Ha, Yong-Chul Kim, Young-Keun Ahn, Da-Woon Jung, Darren R Williams
Type 2 diabetes mellitus (T2DM) significantly impacts on human health and patient numbers are predicted to rise. Discovering novel drugs and targets for treating T2DM is a research priority. In this study, we investigated targeting of the glycolysis enzyme, enolase, using the small molecule ENOblock, which binds enolase and modulates its non-glycolytic 'moonlighting' functions. In insulin-responsive cells ENOblock induced enolase nuclear translocation, where this enzyme acts as a transcriptional repressor. In a mammalian model of T2DM, ENOblock treatment reduced hyperglycemia and hyperlipidemia...
March 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28270077/combined-treatment-with-cci779-and-sb203580-induces-cellular-senescence-in-renal-cell-carcinoma-cell-line-via-p53-pathway
#17
Ashutosh Chauhan, Rani Ojha, Deepak Kumar Semwal, Satyendra Prasad Mishra, Ruchi Badoni Semwal
Renal cell carcinoma (RCC) is one of the most common neoplasms that occurs in the kidney and is marked by a unique biology, with a long history of poor response to conventional cancer treatments. In recent years, there have been significant advancements implemented to understanding the biology of RCC, which has led to the introduction of novel targeted therapies in the management of patients with metastatic disease. So in the present study, we evaluated the effects of p38 MAPK inhibitor (SB203580), alone and in combination with mTOR inhibitor (CCI779) on apoptosis and cell proliferation...
February 13, 2017: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/28264139/residual-kidney-function-implications-in-the-era-of-personalized-medicine
#18
Tariq Shafi, Surekha Mullangi, Stephanie M Toth-Manikowski, Seungyoung Hwang, Wieneke M Michels
The association of residual kidney function (RKF) with improved outcomes in peritoneal dialysis and hemodialysis patients is now widely recognized. RKF provides substantial volume and solute clearance even after dialysis initiation. In particular, RKF provides clearance of nonurea solutes, many of which are potential uremic toxins and not effectively removed by conventional hemodialysis. The presence of RKF provides a distinct advantage to incident dialysis patients and is an opportunity for nephrologists to individualize dialysis treatments tailored to their patients' unique solute, volume, and quality of life needs...
March 6, 2017: Seminars in Dialysis
https://www.readbyqxmd.com/read/28263880/tc38-a-teleost-tfpi-2-peptide-that-kills-bacteria-via-penetration-of-the-cell-membrane-and-interaction-with-nucleic-acids
#19
Min Zhang, Bin Yue, Ai-Hua Zhang, Guang-Hua Wang, Yong Liu, Shun Zhou, Shun-Feng Cheng, Ning-Qiu Li
Tissue factor pathway inhibitor 2 (TFPI-2) is an analog of TFPI-1 and a potent endogenous inhibitor of tissue factor (TF)-mediated blood coagulation. Recent reports have proven that the C-terminal of TFPI-2 peptides in humans and several other vertebrates possesses antibacterial activity against Gram-positive and Gram-negative bacteria. In our previous study, we reported that the TFPI-2 peptide, TC38 in tongue sole (Cynoglossus semilaevis) was active against Micrococcus luteus. In this study, we further examine the antimicrobial spectrum, mechanism of action, and function of TC38 in tongue sole...
March 2, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28260437/tuberculosis-after-kidney-transplant-in-the-samara-region-of-russia-possible-solutions-to-diagnosis-and-treatment
#20
Boris I Yaremin, Anna A Starostina, Igor L Tsygankov
Infections are the most important of all fatal complications in the first year after kidney transplant. They often differ in the severity of their course and can manifest in atypical symptoms. Further, their complex presentation significantly impedes diagnosis and treatment selection. Tuberculosis is unique among infections that affect patients posttransplant because it is accompanied by significant difficulties in detection, treatment, and prevention. The clinical application of a decision support system that can predict the likelihood (percentage) of patients developing posttransplant tuberculosis appears promising...
February 2017: Experimental and Clinical Transplantation
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