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Kidney disease progression

Xiuli Zhang, Dan Liang, Xu Lian, Zhi-Hong Chi, Xuemei Wang, Yue Zhao, Zhang Ping
There is emerging evidence that tubulointerstitial fibrosis is the final common pathway of the majority of chronic progressive renal diseases, including diabetic nephropathy (DN). Zinc, an essential dietary element, has been suggested to be important for a number of protein functions during fibrosis in vivo and in vitro. However, the effect of zinc deficiency (ZnD) on renal interstitial fibrosis in DN remains unclear. The present study investigated the effect and the underlying mechanisms of ZnD on renal interstitial fibrosis during DN using an streptozotocin‑induced model of diabetes with immunofluorescence staining and western blot analysis...
October 20, 2016: Molecular Medicine Reports
Youngwoo Kim, Sonu K Bae, Tianming Cheng, Cheng Tao, Yinghui Ge, Arlene B Chapman, Vincente E Torres, Alan S L Yu, Michal Mrug, William M Bennett, Michael F Flessner, Doug P Landsittel, Kyongtae T Bae
Liver and liver cyst volume measurements are important quantitative imaging biomarkers for assessment of disease progression in autosomal dominant polycystic kidney disease (ADPKD) and polycystic liver disease (PLD). To date, no study has presented automated segmentation and volumetric computation of liver and liver cysts in these populations. In this paper, we proposed an automated segmentation framework for liver and liver cysts from bounded abdominal MR images in patients with ADPKD. To model the shape and variations in ADPKD livers, the spatial prior probability map (SPPM) of liver location and the tissue prior probability maps (TPPMs) of liver parenchymal tissue intensity and cyst morphology were generated...
November 21, 2016: Physics in Medicine and Biology
An S De Vriese, Richard J Glassock, Karl A Nath, Sanjeev Sethi, Fernando C Fervenza
Primary membranous nephropathy (MN) is an autoimmune disease mainly caused by autoantibodies against the recently discovered podocyte antigens: the M-type phospholipase A2 receptor 1 (PLA2R) and thrombospondin type 1 domain-containing 7A (THSD7A). Assays for quantitative assessment of anti-PLA2R antibodies are commercially available, but a semiquantitative test to detect anti-THSD7A antibodies has been only recently developed. The presence or absence of anti-PLA2R and anti-THSD7A antibodies adds important information to clinical and immunopathologic data in discriminating between primary and secondary MN...
October 24, 2016: Journal of the American Society of Nephrology: JASN
Ibrahim M Salman, Cara M Hildreth, Jacqueline K Phillips
We investigated age- and sex-related changes in reflex renal sympathetic nerve activity (RSNA) and haemodynamic responses to vagal afferent stimulation in a rodent model of chronic kidney disease (CKD). Using anaesthetised juvenile (7-8weeks) and adult (12-13weeks) Lewis Polycystic Kidney (LPK) and Lewis control rats of either sex (n=63 total), reflex changes in RSNA, heart rate (HR) and mean arterial pressure (MAP) to vagal afferent stimulation (5-s train, 4.0V, 2.0-ms pulses, 1-16Hz) were measured. In all groups, stimulation of the vagal afferents below 16Hz produced frequency-dependent reductions in RSNA, HR and MAP, while a 16Hz stimulus produced an initial sympathoinhibition followed by sympathoexcitation...
October 11, 2016: Autonomic Neuroscience: Basic & Clinical
Mani Nagarajan, Sakthirajan Ramanathan, Jeyachandran Dhanapriya, Thanigachalam Dineshkumar, T Bala Subramaniyan, Natarajan Gopalakrishnan
BACKGROUND: Acute kidney injury (AKI) is one of the major determinants of graft survival in kidney transplantation (KTx). Renal Transplant recipients are more vulnerable to develop AKI than general population. AKI in the transplant recipient differs from community acquired, in terms of risk factors, etiology and outcome. Our aim was to study the incidence, risk factors, etiology, outcome and the impact of AKI on graft survival. METHODS: A retrospective analysis of 219 renal transplant recipients (both live and deceased donor) was done...
October 24, 2016: Renal Failure
Shaoling Jiang, Hanchang He, Lishan Tan, Liangliang Wang, Zhengxiu Su, Yufeng Liu, Hongguo Zhu, Menghuan Zhang, Fan Fan Hou, Aiqing Li
Salt plays an essential role in the progression of chronic kidney disease and hypertension. However, the mechanisms underlying pathogenesis of salt-induced kidney damage remain largely unknown. Here, Sprague-Dawley rats, that underwent 5/6 nephrectomy (5/6Nx, a model of advanced kidney damage) or sham operation, were treated for 2 weeks with a normal or high-salt diet. We employed aTiO2 enrichment, iTRAQ labeling and liquid-chromatography tandem mass spectrometry strategy for proteomic and phosphoproteomic profiling of the renal cortex...
October 24, 2016: Scientific Reports
A S Vidane, A O Pinheiro, J B Casals, D Passarelli, McFns Hage, R S Bueno, D S Martins, C E Ambrósio
Chronic kidney disease (CKD) is a common clinical condition in domestic cats, characterized by tubulointerstitial, vascular and glomerular inflammation and severe fibrosis. Studies in rodent model of induced CKD have shown a decrease and stabilization of the clinical condition. In this study was evaluated the safety and effect of intrarenal and intravenous infusion of allogeneic mesenchymal stem cells (AMSCs) derived from feline amniotic membrane in cats with naturally occurring CKD. Cat AMSCs were harvested after mechanical and enzymatic digestion of amnion...
October 23, 2016: Reproduction in Domestic Animals, Zuchthygiene
H Xu, J Ärnlöv, B Sandhagen, U Risérus, B Lindholm, L Lind, J J Carrero
BACKGROUND AND AIMS: Unhealthy dietary fats are associated with faster kidney function decline. The cell membrane composition of phospholipid fatty acids (FAs) is a determinant of membrane fluidity and rheological properties. These properties, which have been linked to kidney damage, are thought to be reflected by the lipophilic index (LI). We prospectively investigated the associations of LI with kidney function and its decline. METHODS AND RESULTS: Observational study from the Prospective Investigation of Vasculature in Uppsala Seniors including 975 men and women with plasma phospholipid FAs composition and cystatin-C estimate glomerular filtration rate (eGFR)...
September 16, 2016: Nutrition, Metabolism, and Cardiovascular Diseases: NMCD
Leslie Gewin, Roy Zent, Ambra Pozzi
Tubulointerstitial fibrosis, tubular atrophy, and peritubular capillary rarefaction are major hallmarks of chronic kidney disease. The tubulointerstitium consists of multiple cell components including tubular epithelial, mesenchymal (fibroblasts and pericytes), endothelial, and inflammatory cells. Crosstalk among these cell components is a key component in the pathogenesis of this complex disease. After severe or recurrent injury, the renal tubular epithelial cells undergo changes in structure and cell cycle that are accompanied by altered expression and production of cytokines...
October 20, 2016: Kidney International
Jennifer Trofe-Clark, Deirdre Sawinski
For more than 40 years, polyomaviruses (BK virus and JC virus) have been known to cause disease in human beings. Recently, 11 new polyomaviruses were discovered. However, the majority of these viruses are rare in renal transplant recipients and BK and JC viruses remain the most important polyomaviruses to impact this population. BK virus presents as BK virus nephropathy and has, in rare instances, been associated with hemorrhagic cystitis or ureteral strictures. JC virus can cause progressive multifocal leukoencephalopathy or nephropathy in this population as well, but is uncommon...
September 2016: Seminars in Nephrology
Daniela Beccati, Miroslaw Lech, Jennifer Ozug, Nur Sibel Gunay, Jing Wang, Elaine Y Sun, Joël R Pradines, Victor Farutin, Zachary Shriver, Ganesh V Kaundinya, Ishan Capila
Heparan sulfate (HS), a glycosaminoglycan present on the surface of cells, has been postulated to have important roles in driving both normal and pathological physiologies. The chemical structure and sulfation pattern (domain structure) of HS is believed to determine its biological function, to vary across tissue types, and to be modified in the context of disease. Characterization of HS requires isolation and purification of cell surface HS as a complex mixture. This process may introduce additional chemical modification of the native residues...
October 22, 2016: Glycoconjugate Journal
Alejandro R Chade, John E Hall
Obesity is largely responsible for the growing incidence and prevalence of diabetes, cardiovascular and renal diseases. Current strategies to prevent and treat obesity and its consequences have been insufficient to reverse the ongoing trends. Lifestyle modification or pharmacological therapies often produce modest weight loss which is not sustained and recurrence of obesity is frequently observed, leading to progression of target organ damage in many obese subjects. Therefore, research efforts have focused not only on the factors that regulate energy balance, but also on understanding mechanisms of target organ injury in obesity...
October 22, 2016: American Journal of Nephrology
Esmeralda Castillo-Rodriguez, Raul Fernandez-Prado, Catalina Martin-Cleary, Maria Soledad Pizarro-Sánchez, Maria Dolores Sanchez-Niño, Ana Belen Sanz, Beatriz Fernandez-Fernandez, Alberto Ortiz
The current categorization of chronic kidney disease (CKD) is based on biomarkers of the glomerular function (estimated glomerular filtration rate, eGFR) and injury (urinary albumin creatinine ratio, UACR) and provides information on the risk of death and of progression of kidney disease. However, there are gaps in knowledge regarding the risk stratification of elderly patients with eGFR 45-60 ml/min/1.73 m2 and of younger patients with higher eGFR but physiological albuminuria. In this regard, most of the kidney cell mass is composed of tubules...
October 22, 2016: Nephron
Akihiro Tsuchimoto, Toshiaki Nakano, Shoko Hasegawa, Kosuke Masutani, Yuta Matsukuma, Masahiro Eriguchi, Masaharu Nagata, Takehiro Nishiki, Hidehisa Kitada, Masao Tanaka, Takanari Kitazono, Kazuhiko Tsuruya
BACKGROUND: Lymphangiogenesis occurs in diseased native kidneys and kidney allografts, and correlates with histological injury; however, the clinical significance of lymphatic vessels in kidney allografts is unclear. METHODS: This study retrospectively reviewed 63 kidney transplant patients who underwent protocol biopsies. Lymphatic vessels were identified by immunohistochemical staining for podoplanin, and were classified according to their location as perivascular or interstitial lymphatic vessels...
October 21, 2016: Clinical and Experimental Nephrology
Manuel Guerrero-Hernandez, Carlos A Hinojosa, Javier E Anaya-Ayala, Erika Elenes, Aldo Torre
Portal vein (PV) thrombosis (PVT) in the absence of liver disease or thrombophilia is rare. We report a 57-year-old male with a history of stage 3 chronic kidney disease who presented at the emergency department 18 months after abdominal surgery with progressive abdominal pain and distention. Computed tomography revealed PVT with multiple collaterals and moderate ascites. He had undergone partial gastrectomy and gastrojejunal anastomosis at an outside facility for gastrointestinal stromal tumors that caused an iatrogenic stenotic lesion in the PV...
October 20, 2016: Vascular and Endovascular Surgery
Bharat V Shah, Zamurrud M Patel
BACKGROUND: Chronic kidney disease (CKD) is a worldwide public health problem and more so in India. With limited availability and high cost of therapy, barely 10 % of patients with incident end stage renal disease (ESRD) cases get treatment in India. Therefore, all possible efforts should be made to retard progression of CKD. This article reviews the role of low protein diet (LPD) in management of CKD subjects and suggests how to apply it in clinical practice. DISCUSSION: The role of LPD in retarding progression of CKD is well established in animal experimental studies...
October 21, 2016: BMC Nephrology
Taner Basturk, Ozlem Sari, Yener Koc, Nezaket Eren, Mahmoud Isleem, Ekrem Kara, Mustafa Sevinc, Tamer Sakaci, Elbis Ahbap, Nuri B Hasbal, Feyza B Caglayan, Abdulkadir Unsal
BACKGROUND: Neutrophilgelatinase-associated lipocalin (NGAL) has been proven to be a useful biomarker for early detection of acute kidney injury, but it is not known whether adding NGAL measurements to conventional risk factors will improve the risk assessment in the setting of chronic kidney disease (CKD). The aim of the present study was to examine the correlation of NGAL with early stage renal impairment in CKD and to evaluate its prognostic value in these subjects. METHODS: This is a prospective observational cohort study of 54 patients with early stage (stage 1-2) CKD...
October 21, 2016: Minerva Urologica e Nefrologica, the Italian Journal of Urology and Nephrology
N Gopalakrishnan, R Arul, J Dhanapriya, T Dinesh Kumar, R Sakthirajan, T Balasubramaniyan
Familial lecithin-cholesterol acyltransferase (LCAT) deficiency is a rare autosomal recessive (AR) disease caused by mutation in the LCAT gene. LCAT enzyme esterifies cholesterol molecules in high-density lipoprotein(HDL) and low density-lipoprotein (LDL) particles. This enzyme deficiency is characterised by progressive corneal opacification, glomerulopathy, mild - moderate haemolytic anaemia and very low plasma levels of HDL. We here report a 34 year-old lady who presented with hypertension, nephrotic proteinuria, renal failure, corneal ring opacities, anemia and dyslipidemia...
October 2016: Journal of the Association of Physicians of India
Kyung Jin Yun, Hye Ji Kim, Mee Kyoung Kim, Hyuk Sang Kwon, Ki Hyun Baek, Young Jung Roh, Ki Ho Song
BACKGROUND: Some patients with type 2 diabetes mellitus (T2DM) do not develop diabetic kidney disease (DKD) despite the presence of advanced diabetic retinopathy (DR). We aimed to investigate the presence of DKD and its risk factors in patients with T2DM and advanced DR. METHODS: We conducted a cross-sectional study in 317 patients with T2DM and advanced DR. The phenotypes of DKD were divided into three groups according to the urine albumin/creatinine ratio (uACR, mg/g) and estimated glomerular filtration rate (eGFR, mL/min/1...
September 20, 2016: Diabetes & Metabolism Journal
Cairo H S De Oliveira, José D Barbosa, Karine A Damasceno, Geovanni D Cassali, Carlos Mc Oliveira, Rômulo C Leite, Jenner K P Reis
BACKGROUND: The presence of lymphoma in buffaloes was first reported in India in the 1960s. The disease is similar to Enzootic Bovine Leucosis (EBL) caused by Bovine leukemia virus (BLV) in cattle; however, according to our results and those of other studies, the etiology of these lymphomas in buffalo do not appear to be associated with BLV. The objectives of this study are to describe four cases of the disease in buffaloes belonging to the same herd in the Amazon region of Brazil and to perform a clinical-anatomopathological, immunohistochemical, and etiological study of the lymphomas...
October 20, 2016: BMC Veterinary Research
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