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https://www.readbyqxmd.com/read/28929674/-molecular-mechanisms-of-autophagy-in-regulating-renal-aging-and-interventional-effects-of-chinese-herbal-medicine
#1
REVIEW
Yue Tu, Wei Sun, Di-Ping Chen, Yi-Gang Wan, Wei Wu, Jian Yao
Aging is the gradual functional recession of the living tissues or organs caused by a variety of genetic and environmental factors together. Autophagy is a process of degrading cytoplasmic components mediated by lysosomes in eukaryotic cells. Kidney is a typical target organ of aging. Autophagy regulates renal aging. Decrease in autophagy can accelerate renal aging,whereas,increase in autophagy can delay renal aging. During the process of regulating renal aging,the mammalian target of rapamycin (mTOR) and its related signaling pathways including the adenosine monophosphate activated protein kinase (AMPK)/mTOR,the phosphatidylinositol 3-kinase (PI3K)/ serine-threonine kinase(Akt)/mTOR,the AMPK/silent information regulation 1 (Sirt1) and transforming growth factor β (TGF-β) play the important roles in renal aging...
November 2016: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28929636/risk-factors-for-the-development-of-antibody-mediated-rejection-in-highly-sensitized-pediatric-kidney-transplant-recipients
#2
Irene K Kim, Jua Choi, Ashley Vo, Alexis Kang, Justin Steggerda, Sabrina Louie, Mark Haas, James Mirocha, J Louis Cohen, Helen Pizzo, Elaine S Kamil, Stanley C Jordan, Dechu Puliyanda
ABMR remains a significant concern for early graft loss, especially for those who are HS against HLA antigens. We sought to determine the risk factors leading to ABMR in HS pediatric kidney transplant recipients. From January 2009 to December 2015, 16 HS pediatric kidney transplant patients at our center (age range 2-21) were retrospectively reviewed for outcomes and risk factors for ABMR. All HS patients received desensitization with high-dose IVIG/rituximab prior to transplant. Two groups were examined: ABMR(+) (n = 7) and ABMR(-) (n = 9)...
September 19, 2017: Pediatric Transplantation
https://www.readbyqxmd.com/read/28929120/sulodexide-protects-renal-tubular-epithelial-cells-from-oxidative-stress-induced-injury-via-upregulating-klotho-expression-at-an-early-stage-of-diabetic-kidney-disease
#3
Yu Ning Liu, Jingwei Zhou, Tingting Li, Jing Wu, Shu Hua Xie, Hua-Feng Liu, Zhangsuo Liu, Tae Sun Park, Yaoxian Wang, Wei Jing Liu
The hypoalbuminuric effect of sulodexide (SDX) on diabetic kidney disease (DKD) was suggested by some clinical trials but was denied by the Collaborative Study Group. In this study, the diabetic rats were treated with SDX either from week 0 to 24 or from week 13 to 24. We found that 24-week treatment significantly decreased the urinary protein and HAVCR1 excretion, inhibited the interstitial expansion, and downregulated the renal cell apoptosis and interstitial fibrosis. Renoprotection was also associated with a reduction in renocortical/urinary oxidative activity and the normalization of renal klotho expression...
2017: Journal of Diabetes Research
https://www.readbyqxmd.com/read/28928117/risk-factors-for-severe-hypoglycemia-in-black-and-white-adults-with-diabetes-the-atherosclerosis-risk-in-communities-aric-study
#4
Alexandra K Lee, Clare J Lee, Elbert S Huang, A Richey Sharrett, Josef Coresh, Elizabeth Selvin
OBJECTIVE: Severe hypoglycemia is a rare but important complication of type 2 diabetes. Few studies have examined the epidemiology of hypoglycemia in a community-based population. RESEARCH DESIGN AND METHODS: We included 1,206 Atherosclerosis Risk in Communities (ARIC) Study participants with diagnosed diabetes (baseline, 1996-1998). Severe hypoglycemic events were identified through 2013 by ICD-9 codes from claims for hospitalizations, emergency department visits, and ambulance use...
September 19, 2017: Diabetes Care
https://www.readbyqxmd.com/read/28928092/idh2-deficiency-accelerates-renal-dysfunction-in-aged-mice
#5
Su Jeong Lee, Hanvit Cha, Seoyoon Lee, Hyunjin Kim, Hyeong Jun Ku, Sung Hwan Kim, Jung Hyun Park, Jin Hyup Lee, Kwon Moo Park, Jeen-Woo Park
The free radical or oxidative stress theory of aging postulates that senescence is due to an accumulation of cellular oxidative damage, caused largely by reactive oxygen species (ROS) that are produced as by-products of normal metabolic processes in mitochondria. The oxidative stress may arise as a result of either increased ROS production or decreased ability to detoxify ROS. The availability of the mitochondrial NADPH pool is critical for the maintenance of the mitochondrial antioxidant system. The major enzyme responsible for generating mitochondrial NADPH is mitochondrial NADP(+)-dependent isocitrate dehydrogenase (IDH2)...
September 16, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28928007/removal-of-uremic-retention-products-by-hemodialysis-is-coupled-with-indiscriminate-loss-of-vital-metabolites
#6
Zhi-Hao Zhang, Jia-Rong Mao, Hua Chen, Wei Su, Yuan Zhang, Li Zhang, Dan-Qian Chen, Ying-Yong Zhao, Nosratola D Vaziri
BACKGROUND: Although dialysis ameliorates uremia and fluid and electrolytes disorders, annual mortality rate remains high in dialysis population reflecting its shortcoming in replacing renal function. Unlike the normal kidney, dialysis causes dramatic shifts in volume and composition of body fluids and indiscriminate removal of vital solutes. Present study was undertaken to determine the impact of hemodialysis on plasma metabolites in end-stage renal disease (ESRD) patients. METHODS: 80 hemodialysed patients and 80 age/gender-matched healthy controls were enrolled in the study...
September 16, 2017: Clinical Biochemistry
https://www.readbyqxmd.com/read/28927783/surgical-resection-of-locally-recurrent-renal-cell-carcinoma-after-nephrectomy-oncological-outcome-and-predictors-of-survival
#7
Roman Herout, Johannes Graff, Angelika Borkowetz, Stefan Zastrow, Steffen Leike, Rainer Koch, Desiree-Louise Draeger, Chris Protzel, Oliver W Hakenberg, Manfred P Wirth, Michael Froehner
OBJECTIVE: To describe the course of disease of patients surgically treated for locally recurrent renal cell carcinoma (LRRCC) after nephrectomy and to identify potential predictive factors for long-term survival. PATIENTS AND METHODS: We, retrospectively, identified 54 patients who underwent surgical resection of LRRCC after open nephrectomy for localized kidney cancer. The median age at time of surgery for LRRCC was 65 years. Survival rates were determined with the Kaplan-Meier method...
September 15, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28927772/-antiglomerular-basement-disease-in-children-literature-review-and-therapeutic-options
#8
G Dorval, S Guérin, L Berteloot, S Krid, R Salomon, L Galmiche-Rolland, O Boyer
Antiglomerular basement membrane glomerulonephritis is a rare autoimmune disease characterized by rapidly progressive glomerulonephritis that may be associated with pulmonary hemorrhage (Goodpasture syndrome). The disease is caused by autoantibodies (classically IgGs) directed against the α3 subunit of type IV collagen. This is a rare disease in the adult population and extremely rare in children, with a reported cumulative annual incidence at 1/10(6) people/year. Among scarce reported pediatric cases (n=31), most are girls (M/F sex ratio, 1:4), and the mean age at diagnoses is 9...
September 15, 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28927720/neuronal-defects-an-etiological-factor-in-congenital-pelviureteric-junction-obstruction
#9
Guo Yuan How, Kenneth Tou En Chang, Anette Sundfor Jacobsen, Te-Lu Yap, Caroline Choo Phaik Ong, Yee Low, John Carson Allen, Chik Hong Kuick, Malcolm Zhun Leong Lim, Narasimhan Kannan Laksmi
INTRODUCTION: Congenital pelviureteric junction obstruction (PUJO) is one of the most frequent causes of neonatal hydronephrosis. Obstruction at the PUJ has potential severe adverse outcomes, such as renal damage. While pyeloplasty has been established as the definitive treatment, the exact pathophysiology of congenital PUJO remains unknown. Recent research has proposed neuronal innervation defects as an etiological factor in congenital PUJO. We aim to study the expression of various neuronal markers in PUJO specimens compared with controls, and evaluate whether severity of renal disease or dysfunction pre-operatively is related to expression of neuronal markers in resected PUJO specimens...
September 1, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28927237/augmented-association-between-blood-pressure-and-proteinuria-in-hyperuricemic-patients-with-non-nephrotic-chronic-kidney-disease
#10
K Kohagura, M Kochi, T Miyagi, R Zamami, K Nagahama, K Yonemoto, Y Ohya
Background: Hyperuricemia (HU) may enhance susceptibility to hypertensive renal damage via disrupted autoregulation of glomerular hemodynamics. The effect of HU on the association between blood pressure (BP) and proteinuria remains unknown in patients with chronic kidney disease (CKD). Methods: In total, 109 patients with non-nephrotic CKD (55 men and 54 females) who underwent renal biopsy were recruited. Arteriolar hyalinosis was semiquantitatively assessed via arteriole grading...
September 13, 2017: American Journal of Hypertension
https://www.readbyqxmd.com/read/28926112/chronic-kidney-disease-and-vitamin-d-metabolism-in-human-bone-marrow-derived-mscs
#11
REVIEW
Shuanhu Zhou, Julie Glowacki
Vitamin D that is synthesized in the skin or is ingested undergoes sequential steps of metabolic activation via a cascade of cytochrome P450 enzymatic hydroxylations in the liver and kidney to produce 1α,25-dihydroxyvitamin D (1α,25(OH)2 D). There are many tissues that are able to synthesize 1α,25(OH)2 D, but the biological significance of extrarenal hydroxylases is unresolved. Human marrow-derived mesenchymal stem cells (marrow stromal cells, hMSCs) give rise to osteoblasts, and their differentiation is stimulated by 1α,25(OH)2 D...
August 2017: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/28925945/measurement-of-respiratory-chain-enzyme-activity-in-human-renal-biopsy-specimens
#12
Arun Ghose, Christopher M Taylor, Alexander J Howie, Anapurna Chalasani, Iain Hargreaves, David V Milford
Background: Mitochondrial disorders can present as kidney disease in children and be difficult to diagnose. Measurement of mitochondrial function in kidney tissue may help diagnosis. This study was to assess the feasibility of obtaining renal samples and analysing them for respiratory chain enzyme activity. Methods: The subjects were children undergoing a routine diagnostic renal biopsy, in whom a clinical condition of renal inflammation, scarring and primary metabolic disorder was unlikely. A fresh sample of kidney was snap frozen and later assayed for the activities of respiratory chain enzyme complexes I, II/III, and IV using spectrophotometric enzyme assay, and expressed as a ratio of citrate synthase activity...
September 19, 2017: Journal of Clinical Medicine
https://www.readbyqxmd.com/read/28924461/do-the-benefits-of-transplant-tourism-amongst-nigerian-patients-outweigh-the-risks-a-single-center-experience
#13
C O Amira, B T Bello
BACKGROUND: Transplant tourism (TT) is the term used to describe travel outside one's country of abode for the sole purpose of obtaining organ transplantation services. OBJECTIVE: This study describes the characteristics and outcomes of kidney transplant tourists who were followed up in our institution. METHODS: A retrospective study was conducted on patients who underwent kidney transplantation outside the country and were followed up in our institution from 2007 to 2015...
2017: International Journal of Organ Transplantation Medicine
https://www.readbyqxmd.com/read/28924269/effect-of-dietary-counselling-on-the-nutritional-status-of-end-stage-renal-disease-patients
#14
Bibi Hajira, Maryam Manzoor, Muhammad Samiullah, Rattan Kaur Chawla
OBJECTIVE: To investigate the effect of dietary counselling on the nutritional status of end-stage renal disease patients undergoing maintenance haemodialysis. METHODS: This study was conducted at the Institute of Kidney Diseases, Peshawar, Pakistan, from November to December 2015, and comprised patients of either gender with protein energy wasting. The nutritional status assessment was based on four categories, including biochemical indicators (haemoglobin, serum albumin and cholesterol), measure of body mass index, reduced body fatness, decreased muscle mass and low protein or energy intake...
September 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28923833/nephrology-provider-prognostic-perceptions-and-care-delivered-to-older-adults-with-advanced-kidney-disease
#15
Huzaifah Salat, Andrei Javier, Edward D Siew, Rocio Figueroa, Loren Lipworth, Edmond Kabagambe, Aihua Bian, Thomas G Stewart, Maie H El-Sourady, Mohana Karlekar, Cesar Y Cardona, T Alp Ikizler, Khaled Abdel-Kader
BACKGROUND AND OBJECTIVES: Prognostic uncertainty is one barrier that impedes providers in engaging patients with CKD in shared decision making and advance care planning. The surprise question has been shown to identify patients at increased risk of dying. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: In our prospective observational study, 488 patients ≥60 years of age with CKD stage 4 or 5 were enrolled. Binary surprise question (i.e., "Would you be surprised if this patient died in the next 12 months?") responses were recorded, and dialysis planning preferences, presence of advance care planning documentation, and care preceding death were abstracted...
September 18, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28923650/does-renal-tubular-injury-induced-local-tissue-hypoxia-involve-post-transplantation-erythrocytosis
#16
A Unal, S Ata, C Karakurkcu, M Z Ciraci, I Kocyigit, M H Sipahioglu, B Tokgoz, O Oymak
BACKGROUND: The pathogenesis of post-transplantation erythrocytosis (PTE) is not well understood and appears to be multifactorial. Our hypothesis in this study was that several factors, including toxicity of calcineurin inhibitor, immunologic factors, and chronic allograft nephropathy, can trigger local tissue hypoxia in peritubular interstitium, which is where production of erythropoietin (EPO) takes place. This local interstitial tissue hypoxia can cause an increase in renal EPO production, which induces the development of PTE...
October 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28923627/associations-among-cardio-ankle-vascular-index-carotid-intima-media-thickness-and-fibroblast-growth-factor-21-levels-in-kidney-transplant-patients
#17
T Trakarnvanich, S Prommool, S Kurathong, T Teepprasan, Y Wang
BACKGROUND: Cardiovascular disease is the major cause of death in patients with chronic kidney disease, even after renal transplantation. Cardio-ankle vascular index (CAVI) provides an indicator of arterial stiffness, whereas fibroblast growth factor-21 (FGF-21) levels may provide a biomarker for atherosclerotic disease. We investigated the association between CAVI and FGF-21 and their relationships to carotid intima-media thickness (IMT) and other cardiovascular risk factors. METHODS: This study included 90 renal transplant patients...
October 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28923619/ten-year-follow-up-of-pharmacokinetics-guided-very-early-cyclosporine-minimization-synchronized-with-everolimus-initiation-in-de-novo-kidney-transplantation
#18
V Sumethkul, P Tankee, S Worawichawong, S Jirasiritham
BACKGROUND: Minimization of calcineurin inhibitor (CNI) from the 1st week after kidney transplantation (KT) may reduce the risk of CNI nephrotoxicity. METHODS: Ten de novo KT recipients who received full exposure cyclosporine (CsA) and prednisolone as initial therapy were enrolled. Initial CsA minimization was 50% and started at day 7 after KT. This was synchronized with everolimus (EVL) initiation. Target trough level of EVL was 3-8 ng/mL. Pharmacokinetics studies of CsA and EVL were studied at week 4...
October 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28923618/impact-of-induction-therapy-on-delayed-graft-function-following-kidney-transplantation-in-mated-kidneys
#19
T Butler, N Hayde
BACKGROUND: Delayed graft function (DGF) is defined as the need for dialysis within 1 week of transplantation and occurs in 20%-50% of deceased-donor kidney transplant recipients. Although recovery from DGF often occurs within a few days, many cases may take weeks to months before the transplant function begins. The delay in function increases the complexity of recipient care, makes the diagnosis of acute rejection more difficult, prolongs length of stay, and increases hospital costs...
October 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28923617/postdonation-anemia-in-living-kidney-donors
#20
S Shah, B Lankowsky, T Gao, Z Zaky, B R Stephany, E D Poggio
BACKGROUND: The effect of nephrectomy on development of anemia in living kidney donation has not been well studied. We hypothesized that the remaining kidney volume and function after donation are determinants of hemoglobin (Hb) concentration and postdonation anemia (PDA). METHODS: We studied 398 living kidney donors (LKDs) who donated from January 2001 to December 2013. Demographic variables, hematologic variables, renal mass, and renal function were investigated as factors associated with PDA with the use of univariate and multivariable logistical regression analysis...
October 2017: Transplantation Proceedings
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