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https://www.readbyqxmd.com/read/29786187/-steroid-resistant-focal-segmental-glomerulosclerosis-treated-with-cascade-plasmafiltration-and-rituximab
#1
Paola Tatangelo, Francesco Londrino, Giorgio Di Vasta, Giuliana Guido, Alessia Centi, Sara Dominijanni, Eleonora Bernabei, Maria Stella Caramiello, Damiano Di Franco, Roberto Palumbo
A 39-year man with primary steroid resistant focal segmental glomerulosclerosis (FSGS) was treated with mycophenolate mofetil and ACE-inhibitors. After six months a different therapeutics approach was mandatory due to the worsening of renal function and the relapse of proteinuria at the nephrotic range. The combination of cascade plasmafiltration and single dose of rituximab (375 mg/m²) achieved clinical remission and improved renal function in six months follow up. Cascade plasmafiltration in association with rituximab can be considered as a salvage method for primary steroid-resistant FSGS...
May 2018: Giornale Italiano di Nefrologia: Organo Ufficiale Della Società Italiana di Nefrologia
https://www.readbyqxmd.com/read/29785489/trpc6-inactivation-confers-protection-in-a-model-of-severe-nephrosis-in-rats
#2
Eun Young Kim, Parisa Yazdizadeh Shotorbani, Stuart E Dryer
Mutations in canonical transient receptor potential-6 (TRPC6) channels give rise to rare familial forms of focal and segmental glomerulosclerosis (FSGS). Here we examined a possible role for TRPC6 in the progression of chronic puromycin aminonucleoside (PAN) nephrosis in Sprague-Dawley rats, a classic model of acquired nephrotic syndromes. We used CRISPR/Cas9 technology to delete a 239-bp region within exon 2 of the Trpc6 gene (Trpc6del allele). Trpc6del/del rats expressed detectable Trpc6 transcripts missing exon 2, and TRPC6 proteins could be detected by immunoblot of renal cortex...
May 22, 2018: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/29782856/sirt1-activation-prevents-anti-thy-1-1-mesangial-proliferative-glomerulonephritis-in-the-rat-through-the-nrf2-are-pathway
#3
Kaipeng Huang, Ruiming Li, Wentao Wei
Mesangial proliferative glomerulonephritis (MsPGN) is characterized by glomerular mesangial cells proliferation and extracellular matrix deposition in mesangial area, which develop into glomerulosclerosis. Both silent information regulator 2-related protein 1 (Sirt1) and nuclear factor erythroid 2-related factor 2/ anti-oxidant response element (Nrf2/ARE) pathway had remarkable renoprotective effects. However, whether Sirt1 and Nrf2/ARE pathway can regulate the pathological process of MsPGN remains unknown...
May 18, 2018: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29779709/a-mutation-in-transcription-factor-mafb-causes-focal-segmental-glomerulosclerosis-with-duane-retraction-syndrome
#4
Yoshinori Sato, Hiroyasu Tsukaguchi, Hiroyuki Morita, Koichiro Higasa, Mai Thi Nhu Tran, Michito Hamada, Toshiaki Usui, Naoki Morito, Shoichiro Horita, Takao Hayashi, Junko Takagi, Izumi Yamaguchi, Huan Thanh Nguyen, Masayo Harada, Kiyoko Inui, Yuichi Maruta, Yoshihiko Inoue, Fumihiko Koiwa, Hiroshi Sato, Fumihiko Matsuda, Shinya Ayabe, Seiya Mizuno, Fumihiro Sugiyama, Satoru Takahashi, Ashio Yoshimura
Focal segmental glomerulosclerosis (FSGS) is a leading cause of end-stage renal disease in children and adults. Genetic factors significantly contribute to early-onset FSGS, but the etiologies of most adult cases remain unknown. Genetic studies of monogenic syndromic FSGS exhibiting extra-renal manifestations have uncovered an unexpected biological role for genes in the development of both podocytes and other cellular lineages. To help define these roles, we studied two unrelated families with FSGS associated with Duane Retraction Syndrome, characterized by impaired horizontal eye movement due to cranial nerve malformation...
May 17, 2018: Kidney International
https://www.readbyqxmd.com/read/29778999/idiopathic-nodular-glomerulosclerosis-ing-in-an-african-american-aa-man-with-hepatitis-c
#5
Nirmal K Onteddu, Jayasri Duggirala, Anand C Reddy
Idiopathic nodular glomerulosclerosis (ING) in a non-diabetic patient is uncommon. Nodular glomerulosclerosis is hallmark sign of diabetic nephropathy. ING is a very rare clinicopathological disease associated with smoking, obesity and hypertension, chronic obstructive pulmonary disease and metabolic syndrome. A 68-year-old non-obese African American man with hypertension, smoking and history of hepatitis C presented to the clinic with progressive worsening of lower extremity oedema and declining renal function over few months...
May 18, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29775445/the-clinical-pattern-of-nephrotic-syndrome-in-children-has-no-effect-on-the-concentration-of-soluble-urokinase-receptor-supar-in-serum-and-urine
#6
Agnieszka Ochocińska, Wioletta Jarmużek, Roman Janas
Concentration of soluble urokinase receptor (suPAR) was regarded as viable marker to differentiate the focal segmental glomerulosclerosis (FSGS) from other glomerulopathies and also as predictive parameter for progression of renal disease. AIM: The aim of this study was to evaluate serum and urine (s)(u)suPAR concentration in steroid-sensitive and steroid-resistant nephrotic children treated with different (double and triple-drug) regimens. MATERIALS AND METHODS: Overall 43 children were evaluated including 14 patients with steroid-resistant nephrotic syndrome (SRNS) aged 9±6 years and 29 with steroid-sensitive nephrotic syndrome (SSNS) aged 9±5 years, as well as control group (n=59)...
April 23, 2018: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29767558/molecular-basis-of-the-counteraction-by-calcium-channel-blockers-of-cyclosporine-nephrotoxicity
#7
Safaa Hicham Hammoud, Sahar Alkhansa, Neamah Mahjoub, Amal Galal Omar, Mahmoud M El-Mas, Assaad A Eid
Nephrotoxicity is a serious side effect for the immunosuppressant drug cyclosporine (CSA). In this study, we tested the hypothesis that administration of calcium channel blockers such as verapamil or nifedipine ameliorate renal CSA-induced renal dysfunction. Furthermore, our study investigates the roles of inflammatory, oxidative, and fibrotic pathways in CSA-induced renal dysfunction. Six groups of male rats (n=6/group) were used and received one of the following treatments for 7 consecutive days: vehicle (cremophor EL, i...
May 16, 2018: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/29766817/characteristics-and-outcomes-of-patients-with-anti-glomerular-basement-membrane-antibody-disease-and-anti-neutrophil-cytoplasmic-antibodies
#8
Percy Balderia, Nicole Andeen, Jonathan Ashley Jefferson
BACKGROUND: It is unclear whether patients with anti-glomerular basement membrane (GBM) disease and anti-neutrophil cytoplasmic antibodies (ANCA), so called "double-positive" (DP), have a different clinical presentation and outcome compared to patients with anti-GBM antibody disease alone. This study describes the clinical and histologic characteristics as well as the patient and renal outcomes of DP patients at the University of Washington compared to patients with anti-GBM antibody disease alone...
May 16, 2018: Current Rheumatology Reviews
https://www.readbyqxmd.com/read/29764427/col4a5-and-lama5-variants-co-inherited-in-familial-hematuria-digenic-inheritance-or-genetic-modifier-effect
#9
Konstantinos Voskarides, Gregory Papagregoriou, Despina Hadjipanagi, Ioanelli Petrou, Isavella Savva, Avraam Elia, Yiannis Athanasiou, Androulla Pastelli, Maria Kkolou, Michalis Hadjigavriel, Christoforos Stavrou, Alkis Pierides, Constantinos Deltas
BACKGROUND: About 40-50% of patients with familial microscopic hematuria (FMH) caused by thin basement membrane nephropathy (TBMN) inherit heterozygous mutations in collagen IV genes (COL4A3, COL4A4). On long follow-up, the full phenotypic spectrum of these patients varies a lot, ranging from isolated MH or MH plus low-grade proteinuria to chronic renal failure of variable degree, including end-stage renal disease (ESRD). METHODS: Here, we performed Whole Exome Sequencing (WES) in patients of six families, presenting with autosomal dominant FMH, with or without progression to proteinuria and loss of renal function, all previously found negative for severe collagen IV mutations...
May 16, 2018: BMC Nephrology
https://www.readbyqxmd.com/read/29761241/glucocorticoids-in-the-treatment-of-patients-with-primary-focal-segmental-glomerulosclerosis-and-moderate-proteinuria
#10
Jianni Huang, Li Lin, Jingyuan Xie, Xiao Li, Pingyan Shen, Xiaoxia Pan, Hong Ren, Nan Chen
BACKGROUND: To compare the efficacy of glucocorticoids in primary focal segmental glomerulosclerosis (pFSGS) patients with moderate proteinuria. Registered at http://www.chictr.org.cn/ , study No. ChiCTR-OPN-17012789. METHODS: pFSGS patients with urine protein between 1.0 and 3.5 g/24 h were recruited from 2006 to 2016. No decline in urine protein > 50% was observed after 2 months of run-in angiotensin-converting enzyme inhibitors/angiotensin-receptor blockers (ACEI/ARB) treatment...
May 14, 2018: Clinical and Experimental Nephrology
https://www.readbyqxmd.com/read/29759420/lysyl-oxidase-like-2-contributes-to-renal-fibrosis-in-col4%C3%AE-3-alport-mice
#11
Dominic Cosgrove, Brianna Dufek, Daniel T Meehan, Duane Delimont, Michael Hartnett, Gina Samuelson, Michael Anne Gratton, Grady Phillips, Deidre A MacKenna, Gretchen Bain
Lysyl oxidase like-2 (LOXL2) is an amine oxidase with both intracellular and extracellular functions. Extracellularly, LOXL2 promotes collagen and elastin crosslinking, whereas intracellularly, LOXL2 has been reported to modify histone H3, stabilize SNAIL, and reduce cell polarity. Although LOXL2 promotes liver and lung fibrosis, little is known regarding its role in renal fibrosis. Here we determine whether LOXL2 influences kidney disease in COL4A3 (-/-) Alport mice. These mice were treated with a small molecule inhibitor selective for LOXL2 or with vehicle and assessed for glomerular sclerosis and fibrosis, albuminuria, blood urea nitrogen, lifespan, pro-fibrotic gene expression and ultrastructure of the glomerular basement membrane...
May 11, 2018: Kidney International
https://www.readbyqxmd.com/read/29752403/cryo-em-structure-of-the-cytoplasmic-domain-of-murine-transient-receptor-potential-cation-channel-subfamily-c-member-6-trpc6
#12
Caleigh M Azumaya, Francisco Sierra-Valdez, Julio F Cordero-Morales, Terunaga Nakagawa
The kidney maintains the internal milieu by regulating the retention and excretion of proteins, ions, and small molecules. The glomerular podocyte forms the slit diaphragm of the ultrafiltration filter, whose damage leads to progressive kidney failure and focal segmental glomerulosclerosis (FSGS). The canonical transient receptor potential 6 (TRPC6) ion channel is expressed in the podocyte and mutations in its cytoplasmic domain cause FSGS in humans. In vitro evaluation of disease-causing mutations in TRPC6 has revealed that these genetic alterations result in abnormal ion channel gating...
May 11, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29748623/plasma-microrna-panel-is-a-novel-biomarker-for-focal-segmental-glomerulosclerosis-and-associated-with-podocyte-apoptosis
#13
Bin Xiao, Li-Na Wang, Wei Li, Li Gong, Ting Yu, Qian-Fei Zuo, Hong-Wen Zhao, Quan-Ming Zou
Focal segmental glomerulosclerosis (FSGS) is a frequent glomerular disease, and is the common cause of nephrotic syndrome. However, there is no validated diagnostic blood biomarker for FSGS. Here, we performed a real-time PCR-based high-throughput miRNA profiling to identify the plasma signature for FSGS. We found four miRNAs (miR-17, miR-451, miR-106a, and miR-19b) were significantly downregulated in the plasma of FSGS patients (n = 97) compared with healthy controls (n = 124) in the training, validation, and blinded-test phases...
May 10, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29747582/the-renal-manifestations-of-type-4-familial-partial-lipodystrophy-a-case-report-and-review-of-literature
#14
Ru-Xuan Chen, Lei Zhang, Wei Ye, Yu-Bing Wen, Nuo Si, Hang Li, Ming-Xi Li, Xue-Mei Li, Ke Zheng
BACKGROUND: Lipodystrophy syndromes are rare disorders of variable body fat loss associated with potentially serious metabolic complications. Familial partial lipodystrophy (FPLD) is mostly inherited as an autosomal dominant disorder. Renal involvement has only been reported in a limited number of cases of FPLD. Herein, we present a rare case of proteinuria associated with type 4 FPLD, which is characterized by a heterozygous mutation in PLIN1 and has not been reported with renal involvement until now...
May 10, 2018: BMC Nephrology
https://www.readbyqxmd.com/read/29743598/development-and-assessment-of-a-predictive-nomogram-for-the-progression-of-iga-nephropathy
#15
Lin-Lin Liu, Lin-Bo Zhu, Jian-Nan Zheng, Tong-Dan Bi, Jian-Fei Ma, Li-Ning Wang, Li Yao
The present study is to establish a nomogram for predicting the prognosis of IgA nephropathy (IgAN). Of the 869 IgAN patients, four-fifths were randomly assigned to the development cohort and one-fifth to the validation cohort. The primary outcome was a composite event of either a ≥ 50% reduction in estimated glomerular filtration rate (eGFR), end-stage renal disease or death. The mean follow-up time was 44 months. The Cox regression model identified urinary protein excretion (1-3.5 g/d, HR 11.639, 95% CI 3...
May 9, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29740877/eversion-endarterectomy-of-the-deceased-donor-renal-artery-to-prevent-kidney-discard
#16
Muhammad A Khan, Hany El-Hennawy, Korie C Jones, David Harriman, Alan C Farney, Jeffrey Rogers, Giuseppe Orlando, Robert J Stratta
INTRODUCTION: Deceased donor (DD) kidneys exhibiting severe atherosclerosis involving the renal artery (RA) may represent a contraindication to kidney transplantation (KT). METHODS: Eversion endarterectomy (EE) was performed as a salvage procedure to permit KT. RESULTS: We identified 17 cases (1.2% of all DD KTs during the study period) involving EE of the DD RA. Thirteen (76.5%) kidneys were imported and mean Kidney Donor Profile Index (KDPI) was 81%...
May 8, 2018: Clinical Transplantation
https://www.readbyqxmd.com/read/29740794/focal-segmental-glomerulosclerosis-with-heterozygous-apolipoprotein-e5-glu3lys
#17
Masaru Sasaki, Tetsuhiko Yasuno, Kenji Ito, Akira Matsunaga, Satoshi Hisano, Yasuhiro Abe, Katsuhisa Miyake, Kosuke Masutani, Hitoshi Nakashima, Takao Saito
Apolipoprotein (apo) E5 is a rare apoE isoform. The apoE5 (Glu3Lys) variant, which is caused by the substitution of lysine with glutamic acid at codon 3, has a relative frequency of 0.1% in Japan. Previous studies have reported that apoE5 (Glu3Lys) is associated with hyperlipidemia and cardiovascular diseases, but this isoform has higher LDL receptor-binding activity than that of normal apoE3. Nephropathy associated with apoE5 (Glu3Lys) alone has not yet been reported. We present a case of a 51-year-old man with nephrotic syndrome...
May 8, 2018: CEN Case Reports
https://www.readbyqxmd.com/read/29731057/clinical-outcomes-of-kidney-transplantation-in-patients-with-biopsy-proven-glomerulonephritis
#18
H Park, W Y Park, S S Kang, S M Yeo, S Han, S B Park, K Jin
BACKGROUND: The clinical outcomes after kidney transplantation (KT) according to the types of glomerulonephritis (GN) as the cause of end-stage renal disease (ESRD) are various, but there are not many studies on this. METHODS: Among 1,253 patients who had KT between November 1982 and January 2017, 183 recipients with biopsy-proven GN as the primary cause of ESRD were enrolled. We analyzed the incidence of recurrent GN and the factors associated with recurrence and graft and patient survivals...
May 2018: Transplantation Proceedings
https://www.readbyqxmd.com/read/29728434/focal-segmental-glomerulosclerosis-in-a-patient-with-prefibrotic-primary-myelofibrosis
#19
Gopal Krishana Bohra, Durga Shankar Meena, Nitin Bajpai, Abhishek Purohit
We report a case of 56-year-old man presented to us with chief complaints of frothy urine and leg swelling. A urinalysis revealed nephrotic-range proteinuria. Haematological investigations revealed thrombocytosis, leucocytosis and peripheral blood smear showed a leucoerythroblastic picture. JAK 2 mutation was positive. To confirm the diagnosis of myeloproliferative neoplasm, bone marrow biopsy was done, which was suggestive of primary myelofibrosis. The patient underwent kidney biopsy due to rapidly declining renal function and persistent proteinuria, which was suggestive of focal segmental glomerulosclerosis...
May 4, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29726752/spectrum-of-renal-disease-in-hiv-infected-children-report-of-five-cases
#20
Karalanglin Tiewsoh, Ankur Kumar Jindal, Dhrubajyoti Sharma, Sunil Arora, Ranjana W Minz, Parimal Agrawal, Ritambhra Nada, Deepti Suri
There is a paucity of literature on renal diseases associated with HIV infection in Asian countries. Renal disease in HIV-infected children can involve the glomerulus, interstitium, tubules or blood vessels of the kidney. In this case series, five HIV-infected children with various forms of renal disease are reported. The renal pathology included HIV-associated nephropathy, collapsing focal segmental glomerulosclerosis without tubular changes, tubule-interstitial nephritis and minimal change disease (MCD). Case five fulfilled the classification criteria for childhood polyarteritis nodosa (PAN)...
May 4, 2018: Paediatrics and International Child Health
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