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https://www.readbyqxmd.com/read/28068926/screening-of-wt1-mutations-in-exon-8-and-9-in-children-with-steroid-resistant-nephrotic-syndrome-from-a-single-centre-and-establishment-of-a-rapid-screening-assay-using-high-resolution-melting-analysis-in-a-clinical-setting
#1
Annes Siji, Varsha Chhotusing Pardeshi, Shilpa Ravindran, Ambily Vasudevan, Anil Vasudevan
BACKGROUND: Mutations in Wilm's tumor 1 (WT1) gene is one of the commonly reported genetic mutations in children with steroid resistant nephrotic syndrome (SRNS). We report the results of direct sequencing of exons 8 and 9 of WT1 gene in 100 children with SRNS from a single centre. We standardized and validated High Resolution Melt (HRM) as a rapid and cost effective screening step to identify individuals with normal sequence and distinguish it from those with a potential mutation. Since only mutation positive samples identified by HRM will be further processed for sequencing it will help in reducing the sequencing burden and speed up the screening process...
January 10, 2017: BMC Medical Genetics
https://www.readbyqxmd.com/read/27942854/altered-expression-of-crb2-in-podocytes-expands-a-variation-of-crb2-mutations-in-steroid-resistant-nephrotic-syndrome
#2
Tomohiro Udagawa, Tohaku Jo, Takeshi Yanagihara, Akira Shimizu, Jun Mitsui, Shoji Tsuji, Shinichi Morishita, Reiko Onai, Kenichiro Miura, Shoichiro Kanda, Yuko Kajiho, Haruko Tsurumi, Akira Oka, Motoshi Hattori, Yutaka Harita
BACKGROUND: Steroid-resistant nephrotic syndrome (SRNS) is a genetically heterogeneous disorder for which more than 25 single-gene hereditary causes have been identified. METHODS: Whole exome sequencing was performed in a 3-year-old girl with SRNS. We analyzed the expression of Crb2 and slit diaphragm molecules in the patient's glomeruli, and compared it with that of controls or other nephrotic patients. RESULTS: Whole-exome analysis identified novel compound heterozygous mutations in exons 10 and 12 of CRB2 (p...
December 10, 2016: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/27934809/wilms-tumour-1-gene-mutations-in-south-indian-children-with-steroid-resistant-nephrotic-syndrome
#3
Aravind Selvin Kumar, R Srilakshmi, Smk Karthickeyan, K Balakrishnan, R Padmaraj, Prabha Senguttuvan
BACKGROUND & OBJECTIVES: Clinically, nephrotic syndrome (NS) is a diverse group of symptoms; about 20 per cent of NS cases are resistant to steroid treatment, and within ten years they progress to end-stage renal disease. The present study was undertaken to identify the mutations of Wilms' tumour 1 (WT1) gene in steroid-resistant NS (SRNS) children. METHODS: A total of 173 children with SRNS and 100 children in the control group were enrolled in the study. DNA extraction was done, screened for WT1 (exons 8 and 9) gene amplified by polymerase chain reaction and direct sequencing...
August 2016: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/27932480/magi2-mutations-cause-congenital-nephrotic-syndrome
#4
Agnieszka Bierzynska, Katrina Soderquest, Philip Dean, Elizabeth Colby, Ruth Rollason, Caroline Jones, Carol D Inward, Hugh J McCarthy, Michael A Simpson, Graham M Lord, Maggie Williams, Gavin I Welsh, Ania B Koziell, Moin A Saleem
Steroid-resistant nephrotic syndrome (SRNS), a heterogeneous disorder of the renal glomerular filtration barrier, results in impairment of glomerular permselectivity. Inheritance of genetic SRNS may be autosomal dominant or recessive, with a subset of autosomal recessive SRNS presenting as congenital nephrotic syndrome (CNS). Mutations in 53 genes are associated with human SRNS, but these mutations explain ≤30% of patients with hereditary cases and only 20% of patients with sporadic cases. The proteins encoded by these genes are expressed in podocytes, and malfunction of these proteins leads to a universal end point of podocyte injury, glomerular filtration barrier disruption, and SRNS...
December 8, 2016: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/27885584/wt1-and-nphs2-gene-mutation-analysis-and-clinical-management-of-steroid-resistant-nephrotic-syndrome
#5
Aravind Selvin Kumar Ramanathan, Murali Vijayan, Srilakshmi Rajagopal, Padmaraj Rajendiran, Prabha Senguttuvan
Nephrotic syndrome (NS) is a kidney disease predominantly present in children with idiopathic condition; final stage of the disease progresses into end-stage renal disease. Generally, NS is treated using standard steroid therapy, however; most of the children are steroid sensitive and about 15-20% are non-responders (SRNS). Non-responsiveness of these children would be a risk with the possibility of mutational changes in podocyte genes (NPHS1, NPHS2, WT1, PLCE1). The mutation in podocyte genes is associated with SRNS...
November 25, 2016: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/27821253/bone-mineral-density-in-children-with-idiopathic-nephrotic-syndrome
#6
Ghada Mohamed El-Mashad, Mahmoud Ahmed El-Hawy, Sally Mohamed El-Hefnawy, Sanaa Mansour Mohamed
OBJECTIVES: To assess bone mineral density (BMD) in children with idiopathic nephrotic syndrome (NS) and normal glomerular filtration rate (GFR). METHODS: Cross-sectional case-control study carried out on 50 children: 25 cases of NS (16 steroid-sensitive [SSNS] and nine steroid-resistant [SRNS] under follow up in the pediatric nephrology unit of Menoufia University Hospital, which is tertiary care center, were compared to 25 healthy controls with matched age and sex...
November 5, 2016: Jornal de Pediatria
https://www.readbyqxmd.com/read/27806747/children-with-steroid-resistant-nephrotic-syndrome-long-term-outcomes-of-sequential-steroid-therapy
#7
Hui Zhang, Zheng Wang, Li Qun Dong, Yan Nan Guo
OBJECTIVE: This study aimed to investigate the long-term outcomes in children with steroid-resistant nephrotic syndrome (SRNS), who received methylprednisolone pulse therapy (MPT)-based sequential steroid therapy. In particular, we aimed to observe whether these patients had a high risk of adverse events. METHODS: We conducted a retrospective study over a 5-year period. The long-term outcomes for children with SRNS receiving sequential therapy were observed. RESULTS: Sixty-three children were diagnosed with SRNS and underwent MPT-based sequential steroid therapy...
September 2016: Biomedical and Environmental Sciences: BES
https://www.readbyqxmd.com/read/27783276/mizoribine-therapy-combined-with-steroids-and-mizoribine-blood-concentration-monitoring-for-idiopathic-membranous-nephropathy-with-steroid-resistant-nephrotic-syndrome
#8
Takao Saito, Masayuki Iwano, Koichi Matsumoto, Tetsuya Mitarai, Hitoshi Yokoyama, Noriaki Yorioka, Shinichi Nishi, Ashio Yoshimura, Hiroshi Sato, Satoru Ogahara, Yoshie Sasatomi, Yasufumi Kataoka, Shiro Ueda, Akio Koyama, Shoichi Maruyama, Masaomi Nangaku, Enyu Imai, Seiichi Matsuo, Yasuhiko Tomino
BACKGROUND: We designed a prospective and randomized trial of mizoribine (MZR) therapy combined with prednisolone (PSL) for idiopathic membranous nephropathy (IMN) with steroid-resistant nephrotic syndrome (SRNS). METHODS: Patients with IMN were divided into 2 groups, and MZR combined with PSL was administered for 2 years. PSL was initially prescribed at 40 mg/day and tapered. MZR was given once-a-day at 150 mg and 3-times-a-day at 50 mg each to groups 1 and 2...
October 25, 2016: Clinical and Experimental Nephrology
https://www.readbyqxmd.com/read/27760769/a-small-molecule-screening-to-detect-potential-therapeutic-targets-in-human-podocytes
#9
Eugen Widmeier, Weizhen Tan, Merlin Airik, Friedhelm Hildebrandt
A small molecule screening to detect potential therapeutic targets in human podocytes. Am J Physiol Renal Physiol 312: F157-F171, 2017. First published October 19, 2016; doi:10.1152/ajprenal.00386.2016. Steroid-resistant nephrotic syndrome (SRNS) inevitably progresses to end-stage kidney disease, requiring dialysis or transplantation for survival. However, treatment modalities and drug discovery remain limited. Mutations in over 30 genes have been discovered as monogenic causes of SRNS. Most of these genes are predominantly expressed in the glomerular epithelial cell, the podocyte, placing it at the center of the pathogenesis of SRNS...
January 1, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/27726125/interventions-for-idiopathic-steroid-resistant-nephrotic-syndrome-in-children
#10
REVIEW
Elisabeth M Hodson, Sophia C Wong, Narelle S Willis, Jonathan C Craig
BACKGROUND: The majority of children who present with their first episode of nephrotic syndrome achieve remission with corticosteroid therapy. Children who fail to respond may be treated with immunosuppressive agents including calcineurin inhibitors (cyclosporin or tacrolimus) and with non-immunosuppressive agents such as angiotensin-converting enzyme inhibitors (ACEi). Optimal combinations of these agents with the least toxicity remain to be determined. This is an update of a review first published in 2004 and updated in 2006 and 2010...
October 11, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27719739/early-recognition-of-gonadal-dysgenesis-in-congenital-nephrotic-syndrome%C3%A2
#11
Supamit Ukarapong, Gary Berkovitz, Kenneth McElreavey, Anu Bashamboo, Yong Bao
Mutation of the Wilms tumor suppressor gene (WT1) has been recognized as one of the etiologies of steroid-resistant nephrotic syndrome (SRNS). The mutation is also responsible for gonadal dysgenesis in 46,XY individuals. Early recognition of the presence of Y chromosome is of particular importance because of the high risk of gonadal tumor. We present here three cases of steroid-resistant nephrotic syndrome with WT1 mutation and 46,XY karyotype. Patient 1 and 2 have intron splice site (IVS9+5G A) mutation. Patient 3 has c...
December 2016: Clinical Nephrology
https://www.readbyqxmd.com/read/27617138/the-genetics-of-nephrotic-syndrome
#12
REVIEW
Michelle N Rheault, Rasheed A Gbadegesin
Nephrotic syndrome (NS) is a common pediatric kidney disease and is defined as massive proteinuria, hypoalbuminemia, and edema. Dysfunction of the glomerular filtration barrier, which is made up of endothelial cells, glomerular basement membrane, and visceral epithelial cells known as podocytes, is evident in children with NS. While most children have steroid-responsive nephrotic syndrome (SSNS), approximately 20% have steroid-resistant nephrotic syndrome (SRNS) and are at risk for progressive kidney dysfunction...
March 2016: Journal of Pediatric Genetics
https://www.readbyqxmd.com/read/27589479/supraspinal-control-of-spinal-reflex-responses-to-body-bending-during-different-behaviours-in-lampreys
#13
Li-Ju Hsu, Pavel V Zelenin, Grigori N Orlovsky, Tatiana G Deliagina
KEY POINTS: Spinal reflexes are substantial components of the motor control system in all vertebrates and centrally driven reflex modifications are essential to many behaviours, but little is known about the neuronal mechanisms underlying these modifications. To study this issue, we took advantage of an in vitro brainstem-spinal cord preparation of the lamprey (a lower vertebrate), in which spinal reflex responses to spinal cord bending (caused by signals from spinal stretch receptor neurons) can be evoked during different types of fictive behaviour...
September 2, 2016: Journal of Physiology
https://www.readbyqxmd.com/read/27573339/novel-nphs2-variant-in-patients-with-familial-steroid-resistant-nephrotic-syndrome-with-early-onset-slow-progression-and-dominant-inheritance-pattern
#14
Maija Suvanto, Jaakko Patrakka, Timo Jahnukainen, Pia-Maria Sjöström, Matti Nuutinen, Pekka Arikoski, Janne Kataja, Marjo Kestilä, Hannu Jalanko
BACKGROUND: Steroid-resistant nephrotic syndrome (SRNS) is a common cause of end-stage renal disease in children but also occurs as an adult-onset condition. In a subset of SRNS patients, pathogenic variants are found in genes coding for podocyte foot process proteins. The aim of this study was to define the role of pathogenic variants in Finnish patients with familial and sporadic SRNS. METHODS: We analyzed SRNS-related genes NPHS1, NPHS2, NEPH1, ACTN4, TRPC6, INF2, WT1, CD2AP, LAMB2, and PLCE1 for disease-causing variants using direct sequencing of exons and intron/exon boundaries in all members of a family with dominant SRNS with early onset and slow progression to end-stage renal disease...
August 29, 2016: Clinical and Experimental Nephrology
https://www.readbyqxmd.com/read/27504551/comparison-of-efficacy-of-tacrolimus-versus-cyclosporine-in-childhood-steroid-resistant-nephrotic-syndrome
#15
Syed Sajid Hussain Shah, Farkhanda Hafeez
OBJECTIVE: To compare the efficacy of tacrolimus versus cyclosporine (Calcineurin Inhibitors) in the management of childhood steroid-resistant nephritic syndrome (SRNS). STUDY DESIGN: Quasi-experimental study. PLACE AND DURATION OF STUDY: Department of Paediatric Nephrology at The Children's Hospital and Institute of Child Health, Lahore, from August 2014 to September 2015. METHODOLOGY: Patients of either gender aged 1 - 12 years, with the diagnosis of mesangioproliferative glomerulonephritis (MesangioPGN), focal segmental glomerulosclerosis (FSGS) or minimal-change disease (MCD) were included...
July 2016: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/27470160/genetics-of-childhood-steroid-sensitive-nephrotic-syndrome
#16
REVIEW
Alana M Karp, Rasheed A Gbadegesin
The pathogenesis of childhood-onset nephrotic syndrome (NS), disparity in incidence of NS among races, and variable responses to therapies in children with NS have defied explanation to date. In the last 20 years over 50 genetic causes of steroid-resistant nephrotic syndrome (SRNS) have been identified, and at least two disease loci for two pathologic variants of SRNS (focal segmental glomerulosclerosis and membranous nephropathy) have been defined. However, the genetic causes and risk loci for steroid-sensitive nephrotic syndrome (SSNS) remain elusive, partly because SSNS is relatively rare and also because cases of SSNS vary widely in phenotypic expression over time...
July 29, 2016: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/27442391/steroid-resistant-nephrotic-syndrome-genetic-consideration
#17
REVIEW
Velibor Tasic, Zoran Gucev, Momir Polenakovic
Nephrotic syndrome is defined as the association of massive proteinuria, hypoalbuminaemia, edema, and hyperlipidemia. It is separated to steroid-sensitive or steroid-resistant (SRNS) forms in respect to the response to intensive steroid therapy. SRNS usually progresses to end-stage renal failure. According to the North American Pediatric Renal Trials and Collaborative Studies SRNS constitutes the second most frequent cause of ESRD in the first two decades of life. Unfortunately, there is no curative treatment for majority of patients...
2015: Prilozi (Makedonska Akademija Na Naukite i Umetnostite. Oddelenie za Medicinski Nauki)
https://www.readbyqxmd.com/read/27422620/rituximab-for-nephrotic-syndrome-in-children
#18
Kazumoto Iijima, Mayumi Sako, Kandai Nozu
Idiopathic nephrotic syndrome is the most common chronic glomerular disease in children. At least 20 % of children with this syndrome show frequent relapses and/or steroid dependence during or after immunosuppressive therapies, a condition defined as complicated frequently relapsing/steroid-dependent nephrotic syndrome (FRNS/SDNS). Approximately 1-3 % of children with idiopathic nephrotic syndrome are resistant to steroids and all immunosuppressive agents, a condition defined as refractory steroid-resistant nephrotic syndrome (SRNS); these SRNS children have a high risk of end-stage renal failure...
July 15, 2016: Clinical and Experimental Nephrology
https://www.readbyqxmd.com/read/27319672/directions
#19
(no author information available yet)
Occupational health nursing is one area of the profession that appeals to Registered General Nurses/State Registered Nurses (RGNs/SRNs) who wish to remain within nursing but for personal reasons must relocate or to accommodate family obligations and responsibilities must tailor their working time to hours which may be unavailable or impractical in other settings.
October 31, 1987: Nursing Standard
https://www.readbyqxmd.com/read/27300205/genotype-phenotype-analysis-of-pediatric-patients-with-wt1-glomerulopathy
#20
Yo Han Ahn, Eu Jin Park, Hee Gyung Kang, Seong Heon Kim, Hee Yeon Cho, Jae Il Shin, Joo Hoon Lee, Young Seo Park, Kyo Sun Kim, Il-Soo Ha, Hae Il Cheong
BACKGROUND: WT1 is one of the genes commonly reported as mutated in children with steroid-resistant nephrotic syndrome (SRNS). We analyzed genotype-phenotype correlations in pediatric SRNS patients with WT1 mutations. METHODS: From 2001 to 2015, WT1 mutations were detected in 21 out of 354 children with SRNS by genetic screening (5.9 %). The patients were grouped into missense (n = 11) and KTS splicing (n = 10) mutation groups. RESULTS: Nine (82 %) patients with missense mutations presented with congenital/infantile nephrotic syndrome, while 8 (80 %) with KTS splicing mutations presented with childhood-onset SRNS...
June 14, 2016: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
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