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https://www.readbyqxmd.com/read/28806188/tubulointerstitial-nephritis-and-uveitis
#1
Kaivon Pakzad-Vaezi, Kathryn L Pepple
PURPOSE OF REVIEW: Tubulointerstitial nephritis and uveitis (TINU) is an important yet underrecognized ocular inflammatory syndrome. This review summarizes key historical publications that identified and defined the syndrome, and more recent literature that reveal the importance of urinary β2-microglobulin testing and kidney biopsy in the diagnostic evaluation of patients with TINU. Additionally, research studies providing new insights into disease pathogenesis are highlighted. RECENT FINDINGS: In contrast with initial reports of TINU manifesting exclusively as an anterior uveitis in pediatric patients, more recent reports have identified TINU in patients of all ages with a wide range of ocular manifestations...
August 12, 2017: Current Opinion in Ophthalmology
https://www.readbyqxmd.com/read/28803673/tubulointerstitial-damage-predicts-end-stage-renal-disease-in-lupus-nephritis-with-preserved-to-moderately-impaired-renal-function-a-retrospective-cohort-study
#2
Anna Broder, Wenzhu B Mowrey, Hina N Khan, Bojana Jovanovic, Alejandra Londono-Jimenez, Peter Izmirly, Chaim Putterman
OBJECTIVES: The presence of tubulointerstitial damage (TID) on renal biopsy is considered to be a late sequela of lupus nephritis (LN). The objective of this study was to determine if TID predicts progression to end stage renal disease (ESRD) in LN patients without advanced kidney disease. METHODS: All SLE patients with an index biopsy consistent with LN between January 2005 and July 2015, and eGFR ≥ 30mL/min/1.73m(2) were included. Moderate-to-severe TID was defined as the presence of moderate-to-severe tubular atrophy and/or interstitial fibrosis...
July 14, 2017: Seminars in Arthritis and Rheumatism
https://www.readbyqxmd.com/read/28781372/uromodulin-from-physiology-to-rare-and-complex-kidney-disorders
#3
REVIEW
Olivier Devuyst, Eric Olinger, Luca Rampoldi
Uromodulin (also known as Tamm-Horsfall protein) is exclusively produced in the kidney and is the most abundant protein in normal urine. The function of uromodulin remains elusive, but the available data suggest that this protein might regulate salt transport, protect against urinary tract infection and kidney stones, and have roles in kidney injury and innate immunity. Interest in uromodulin was boosted by genetic studies that reported involvement of the UMOD gene, which encodes uromodulin, in a spectrum of rare and common kidney diseases...
September 2017: Nature Reviews. Nephrology
https://www.readbyqxmd.com/read/28780079/antineutrophil-cytoplasmic-antibody-associated-vasculitides-and-igg4-related-disease-a-new-overlap-syndrome
#4
REVIEW
François-Xavier Danlos, Giovanni Maria Rossi, Daniel Blockmans, Giacomo Emmi, Andreas Kronbichler, Stéphane Durupt, Claire Maynard, Luminita Luca, Cyril Garrouste, Bertrand Lioger, Rachel Mourot-Cottet, Robin Dhote, Jean-Benoit Arlet, Thomas Hanslik, Philippe Rouvier, Mikael Ebbo, Xavier Puéchal, Dominique Nochy, Agnès Carlotti, Luc Mouthon, Loïc Guillevin, Augusto Vaglio, Benjamin Terrier
OBJECTIVE: Atypical manifestations have been described in patients with ANCA-associated vasculitides (AAV), such as pachymeningitis, orbital mass or chronic periaortitis. Because these manifestations have been associated to the spectrum of IgG4-related disease (IgG4-RD), we hypothesized that both diseases could overlap. METHODS: We conducted a European retrospective multicenter observational study including patients fulfilling ACR and Chapel Hill criteria for AAV and IgG4-RD Comprehensive Diagnostic Criteria...
August 2, 2017: Autoimmunity Reviews
https://www.readbyqxmd.com/read/28774276/successful-treatment-of-highly-advanced-immunoglobulin-g4-related-kidney-disease-presenting-renal-mass-like-regions-with-end-stage-kidney-failure-a-case-study
#5
Hiroyuki Ono, Taichi Murakami, Akira Mima, Eriko Shibata, Masanori Tamaki, Sakiya Yoshimoto, Sayo Ueda, Fumi Kishi, Seiji Kishi, Takashi Kawanaka, Motokazu Matsuura, Kojiro Nagai, Hideharu Abe, Masashi Harada, Toshio Doi
BACKGROUND: Immunoglobulin G4-related kidney disease characterized by immunoglobulin G4-positive plasma cell-rich tubulointerstitial nephritis has distinctive serological and radiological findings. Renal prognosis is good because of a good response to glucocorticoids. Here we report a case of successful treatment of highly advanced immunoglobulin G4-related kidney disease presenting renal mass-like regions with end-stage kidney failure. CASE PRESENTATION: A 59-year-old Japanese man was referred to our hospital because of uremia with a creatinine level of 12...
August 3, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28754552/ubiquitin-c-terminal-hydrolase-l1-is-required-for%C3%A2-regulated-protein-degradation-through-the%C3%A2-ubiquitin-proteasome-system-in-kidney
#6
Victoria Radón, Maire Czesla, Julia Reichelt, Julia Fehlert, Anna Hammel, Alva Rosendahl, Jan-Hendrik Knop, Thorsten Wiech, Ulrich O Wenzel, Marlies Sachs, Anna T Reinicke, Rolf A K Stahl, Catherine Meyer-Schwesinger
Ubiquitin C-terminal hydrolase L1 (UCH-L1) is a major deubiquitinating enzyme of the nervous system and associated with the development of neurodegenerative diseases. We have previously shown that UCH-L1 is found in tubular and parietal cells of the kidney and is expressed de novo in injured podocytes. Since the role of UCH-L1 in the kidney is unknown we generated mice with a constitutive UCH-L1-deficiency to determine its role in renal health and disease. UCH-L1-deficient mice developed proteinuria, without gross changes in glomerular morphology...
July 26, 2017: Kidney International
https://www.readbyqxmd.com/read/28751545/angiotensin-ii-type-1-receptor-associated-protein-regulates-kidney-aging-and-lifespan-independent-of-angiotensin
#7
Kazushi Uneda, Hiromichi Wakui, Akinobu Maeda, Kengo Azushima, Ryu Kobayashi, Sona Haku, Kohji Ohki, Kotaro Haruhara, Sho Kinguchi, Miyuki Matsuda, Masato Ohsawa, Shintaro Minegishi, Tomoaki Ishigami, Yoshiyuki Toya, Yoshitoshi Atobe, Akio Yamashita, Satoshi Umemura, Kouichi Tamura
BACKGROUND: The kidney is easily affected by aging-associated changes, including glomerulosclerosis, tubular atrophy, and interstitial fibrosis. Particularly, renal tubulointerstitial fibrosis is a final common pathway in most forms of progressive renal disease. Angiotensin II type 1 receptor (AT1R)-associated protein (ATRAP), which was originally identified as a molecule that binds to AT1R, is highly expressed in the kidney. Previously, we have shown that ATRAP suppresses hyperactivation of AT1R signaling, but does not affect physiological AT1R signaling...
July 27, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28750410/loss-of-the-protein-cystathionine-%C3%AE-synthase-during-kidney-injury-promotes-renal-tubulointerstitial-fibrosis
#8
Xiangning Yuan, Jin Zhang, Feifei Xie, Wenqing Tan, Shuting Wang, Ling Huang, Lijian Tao, Qiqi Xing, Qiongjing Yuan
BACKGROUND/AIMS: Renal tubulointerstitial fibrosis (TIF) is the common pathway of progressive chronic kidney disease. Inflammation has been widely accepted as the major driving force of TIF. Cystathionine β-synthase (CBS) is the first and rate-limiting enzyme in the transsulfuration pathway. CBS is considered to play protective role in liver and pulmonary fibrosis, but its role in TIF remains unknown. The purpose of this study was to investigate the potential role and mechanism of CBS in renal inflammation and TIF...
July 27, 2017: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/28748886/clinical-and-histological-correlation-of-diabetic-nephropathy
#9
Tameem Afroz, Radha Sagar, Sandeep Reddy, Sridhar Gandhe, K G Rajaram
Renal failure in diabetes is a common cause of renal replacement therapy. The affected kidney goes through various changes in all compartments progressively. The classification of diabetic nephropathy is based on glomerular lesions and displays a heterogeneous morphology. Abnormalities in tubulointerstitial and vascular compartments are important in assessing the outcome of these patients. We applied the new pathologic classification of diabetic nephropathy by Tervaert et al to classify the renal damage in diabetes...
July 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28745686/-effects-of-keto-amino-acids-and-a-low-protein-diet-on-the-nutritional-status-of-patients-with-stages-3b-4-chronic-kidney-disease
#10
S Yu Milovanova, Yu S Milovanov, M V Taranova, I A Dobrosmyslov
AIM: To evaluate the efficacy of keto/amino acids in maintaining protein balance and preventing mineral metabolic disturbances and the development of uremic hyperparathyroidism in the long-term use of a low-protein diet (LPD) in patients with Stages 3B-4 chronic kidney disease (CKD). SUBJECTS AND METHODS: Ninety patients with CKD caused by chronic latent glomerulonephritis in 65 patients and chronic tubulointerstitial nephritis of various etiologies (gout, drug-induced, and infection) in 25 were examined...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28733250/sphingosine-kinase-1-protects-renal-tubular-epithelial-cells-from-renal-fibrosis-via-induction-of-autophagy
#11
Chunyang Du, Yunzhuo Ren, Fang Yao, Jialiang Duan, Hui'er Zhao, Yunxia Du, Xia Xiao, Huijun Duan, Yonghong Shi
Autophagy is an important homoeostatic mechanism for the lysosomal degradation of protein aggregates and damaged cytoplasmic components. Recent studies suggest that autophagy which is induced by TGF-β1 suppresses kidney fibrosis in renal tubular epithelial cells (RTECs) of obstructed kidneys. Sphingosine kinase 1(SK1), converting sphingosine into endogenous sphingosine-1-phosphate (S1P), was shown to modulate autophagy and involved in the processes of fibrotic diseases. Since SK1 activity is also up-regulated by TGF-β1, we explored its effect on the induction of autophagy and development of renal fibrosis in this study...
July 18, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28725949/tubulointerstitial-nephritis-induced-hypophosphatemic-osteomalacia-in-sj%C3%A3-gren-s-syndrome-a-case-report-and-review-of-the-literature
#12
REVIEW
Yan Geng, Youlu Zhao, Zhuoli Zhang
Sjögren's syndrome (SS) is a chronic autoimmune inflammatory disease that typically affects the salivary and lacrimal glands. Renal involvement is relatively uncommon and may precede other complaints. Tubulointestitial nephritis (TIN) is the most common renal involvement in SS. Osteomalacia occurring as the first manifestation of renal tubular disorder due to SS is very rare. We report a 39-year-old male who presented with polydipsia, polyuria, and multiple bone pain. Bone density test showed severe osteoporosis, and laboratory findings suggested hypokalemia, hypophosphatemia, and vitamin D deficiency, which supported the diagnosis of hypophosphatemic osteomalacia...
July 20, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28724608/erbb4-deletion-accelerates-renal-fibrosis-following-renal-injury
#13
Fenghua Zeng, Tomoki Miyazawa, Lance A Kloepfer, Raymond C Harris
Tubulointerstitial fibrosis (TIF) is a prominent factor in the progression of chronic kidney disease (CKD) regardless of etiology. ErbB4 expression levels were inversely correlated to renal fibrosis in human fibrotic kidneys. In both unilateral ureteral obstruction (UUO) and ischemia reperfusion injury followed by uninephrectomy (IRI/UNx) mouse models, expression levels of ErbB4 were elevated in the early stage of renal injury. Using mice with global ErbB4 deletion except for transgenic rescue in cardiac tissue (ErbB4-/-ht+), we determined that UUO induced similar injury in proximal tubules compared to wild-type mice but more severe injury in distal nephrons...
July 19, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28723681/inhibition-of-necroptosis-attenuates-kidney-inflammation-and-interstitial-fibrosis-induced-by-unilateral-ureteral-obstruction
#14
Xia Xiao, Chunyang Du, Zhe Yan, Yonghong Shi, Huijun Duan, Yunzhuo Ren
BACKGROUND: Inflammation plays a crucial role in renal interstitial fibrosis, the pathway of chronic kidney diseases. Necroptosis is a novel form of regulated cell death, which plays a potential role in inflammation and renal diseases. The small molecule necrostatin-1 (Nec-1) is a specific inhibitor of necroptosis. This study was aimed at determining the role of necroptosis, RIP1/RIP3/mixed lineage kinase domain-like (MLKL) signaling pathway, in renal inflammation and interstitial fibrosis related to primitive tubulointerstitial injury...
July 20, 2017: American Journal of Nephrology
https://www.readbyqxmd.com/read/28715949/contrast-enhanced-ultrasound-for-assessing-renal-perfusion-impairment-and-predicting-acute-kidney-injury-to-chronic-kidney-disease-progression
#15
Wei Cao, Shuang Cui, Li Yang, Chunyi Wu, Jian Liu, Fang Yang, Youhua Liu, Jianping Bin, Fan Fan Hou
AIMS: Acute kidney injury (AKI) is increasingly recognized as a major risk factor leading to progression to chronic kidney disease (CKD). However, the diagnostic tools for predicting AKI to CKD progression are particularly lacking. Here, we tested the utility of contrast enhanced ultrasound (CEUS) for predicting progression to CKD after AKI by using both mild (20-minute) and severe (45-minute) bilateral renal ischemia/reperfusion injury (IRI) mice. RESULTS: Renal perfusion measured by CEUS reduced to 25%±7% and 14%±6% of the pre-ischemic levels in mild and severe AKI 1 hour after ischemia (P<0...
July 17, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/28701203/discovery-of-a-novel-dominant-mutation-in-the-ren-gene-after-forty-years-of-renal-disease-a-case-report
#16
Rhian L Clissold, Helen C Clarke, Olivera Spasic-Boskovic, Kim Brugger, Stephen Abbs, Coralie Bingham, Charles Shaw-Smith
BACKGROUND: Heterozygous mutations in the gene encoding renin (REN) cause autosomal dominant tubulointerstitial kidney disease (ADTKD), early-onset anaemia and hyperuricaemia; only four different mutations have been described in the published literature to date. We report a novel dominant REN mutation discovered in an individual after forty years of renal disease. CASE PRESENTATION: A 57 year old Caucasian woman with chronic kidney disease stage five was reviewed in a regional joint renal genetics clinic...
July 12, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28685176/the-hormetic-functions-of-wnt-pathways-in-tubular-injury
#17
REVIEW
Elisabeth F Gröne, Giuseppina Federico, Peter J Nelson, Bernd Arnold, Hermann-Josef Gröne
Chronic tubulointerstitial damage with tubular epithelial atrophy and interstitial fibrosis is the hallmark of chronic kidney disease (CKD) and a predictor for progression of CKD.Several experiments have now provided evidence that the Wnt signaling pathways are significantly contributing to atrophy and fibrosis; in contrast, it also has been shown that the Wnt system fosters regenerative processes in acute tubular injury.We now have demonstrated that Dickkopf 3 (DKK3) is an agonist for canonical Wnt signaling in CKD and fosters chronic fibrosing inflammation of the tubulointerstitial compartment...
August 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28677767/lysyl-oxidase%C3%A2-like-2-is-expressed-in-kidney-tissue-and-is-associated-with-the-progression-of-tubulointerstitial-fibrosis
#18
Sung-Eun Choi, Nara Jeon, Hoon Young Choi, Jae Il Shin, Hyeon Joo Jeong, Beom Jin Lim
Tubulointerstitial fibrosis is a common end point of chronic kidney diseases, and preventing its progression is key to avoiding renal failure. Transforming growth factor‑β (TGF‑β) and associated molecules promote tubulointerstitial fibrosis; however, effective therapies targeting these molecules have yet to be developed. Lysyl oxidase‑like 2 (LOXL2), which is involved in invasive growth and metastasis of malignant neoplasms, has recently been reported to serve a key role in hepatic and pulmonary fibrosis...
September 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28673900/inhibition-of-i%C3%AE%C2%BAb-kinase-at-24%C3%A2-hours-after-acute-kidney-injury-improves-recovery-of-renal-function-and-attenuates-fibrosis
#19
Florence L Johnson, Nimesh S A Patel, Gareth S D Purvis, Fausto Chiazza, Jianmin Chen, Regina Sordi, Guillaume Hache, Viktoria V Merezhko, Massimo Collino, Muhammed M Yaqoob, Christoph Thiemermann
BACKGROUND: Acute kidney injury (AKI) is a major risk factor for the development of chronic kidney disease. Nuclear factor-κB is a nuclear transcription factor activated post-ischemia, responsible for the transcription of proinflammatory proteins. The role of nuclear factor-κB in the renal fibrosis post-AKI is unknown. METHODS AND RESULTS: We used a rat model of AKI caused by unilateral nephrectomy plus contralateral ischemia (30 minutes) and reperfusion injury (up to 28 days) to show impairment of renal function (peak: 24 hours), activation of nuclear factor-κB (peak: 48 hours), and fibrosis (28 days)...
July 3, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28670253/renal-involvement-in-leprosy-evaluation-of-patients-in-turkey
#20
Savas Ozturk, Tulin Ozturk, Ilkay Can
INTRODUCTION: Renal involvement in leprosy has previously been described in the literature and can include amyloidosis, glomerulonephritis, nephrosclerosis, tubulointerstitial nephritis, and granulomas. AIM: To evaluate renal involvement in Turkish patients with leprosy. MATERIAL AND METHODS: In total, 32 patients with lepromatous leprosy but without any co-morbidities and 35 healthy control subjects were evaluated for renal involvement at the Elazig Training and Research Hospital in Turkey...
June 2017: Postȩpy Dermatologii i Alergologii
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