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TUBULOINTERSTITIAL

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https://www.readbyqxmd.com/read/28319945/glomerular-proteinuria-predicts-the-severity-of-acute-kidney-injury-in-puumala-hantavirus-induced-tubulointerstitial-nephritis
#1
Paula S Mantula, Tuula K Outinen, Jan P G Clement, Heini S A Huhtala, Ilkka H Pörsti, Antti Vaheri, Jukka T Mustonen, Satu M Mäkelä
BACKGROUND: Puumala virus (PUUV)-induced hemorrhagic fever with renal syndrome is common in many European countries. The typical renal histologic lesion is acute tubulointerstitial nephritis. We examined the type and kinetics of urine protein excretion and prognostic significance of proteinuria for the severity of acute kidney injury (AKI) in acute PUUV infection. METHODS: The amount of dipstick albuminuria at hospital admission was analyzed in 205 patients with acute PUUV infection...
March 21, 2017: Nephron
https://www.readbyqxmd.com/read/28302238/gitelman-syndrome
#2
Qurat Ul Ain Mustafa, Zujaja Hina Haroon, Aamir Ijaz, Muhammad Tanveer Sajid, Muhammad Ayyub
Gitelman syndrome (GS) is the most frequently inherited renal salt-wasting tubulointerstitial disease. It follows variable but usually asymptomatic benign course. We present a rare case of GS that remained clinical enigma. A 22-year male presented with severe episodic fatigue involving all limbs associated with episodes of sinking, palpitations, salt craving, increased thirst and frequent micturition hampering his routine daily activities. Laboratory workup revealed serum potassium, 2.7 mmol/L, serum magnesium, 0...
March 2017: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/28298077/effects-of-colchicine-on-renal-fibrosis-and-apoptosis-in-obstructed-kidneys
#3
Sejoong Kim, Eun Sook Jung, Jeonghwan Lee, Nam Ju Heo, Ki Young Na, Jin Suk Han
Background/Aims: Colchicine is an established drug for microtubule stabilization that may reduce tissue injury. No data were available that its effects may depend on the dosage of colchicine. We investigated the anti-fibrotic and apoptotic effects of various dose of colchicine in a unilateral ureteral obstruction (UUO) model. Methods: Thirty-six Sprague-Dawley rats were randomly assigned into six groups. Two sham groups were divided into a vehicle-treated or colchicine-treated group (100 μg/kg/day)...
March 18, 2017: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/28290633/proteinuria-in-children-evaluation-and-differential-diagnosis
#4
Alexander K C Leung, Alex H C Wong, Stefani S N Barg
Although proteinuria is usually benign in the form of transient or orthostatic proteinuria, persistent proteinuria may be associated with more serious renal diseases. Proteinuria may be an independent risk factor for the progression of chronic kidney disease in children. Mechanisms of proteinuria can be categorized as glomerular, tubular, secretory, or overflow. A history, a physical examination, and laboratory tests help determine the cause. Transient (functional) proteinuria is temporary. It can occur with fever, exercise, stress, or cold exposure, and it resolves when the inciting factor is removed...
February 15, 2017: American Family Physician
https://www.readbyqxmd.com/read/28286790/tubulointerstitial-nephritis-as-the-initial-presentation-of-crohn-s-disease-and-successful-treatment-with-infliximab
#5
Brielle Stanton, Tiffany Caza, Dongmei Huang, Mirza B Beg
Tubulointerstitial nephritis (TIN) is not commonly associated in aminosalicylate-naïve patients with Crohn's disease (CD). Our case describes the initial presentation, diagnosis, and management of an adolescent presenting with TIN and underlying CD. Our case emphasizes that CD should be considered in the differential diagnosis of interstitial nephritis as not only a medication-related effect, but also as an extraintestinal manifestation of CD. We also describe successful management of undiagnosed recurring and symptomatic CD-related TIN with infliximab...
2017: ACG Case Reports Journal
https://www.readbyqxmd.com/read/28286758/role-of-vitamin-d-in-uremic-vascular-calcification
#6
REVIEW
Yi-Chou Hou, Wen-Chih Liu, Cai-Mei Zheng, Jing-Quan Zheng, Tzung-Hai Yen, Kuo-Cheng Lu
The risk of cardiovascular death is 10 times higher in patients with CKD (chronic kidney disease) than in those without CKD. Vascular calcification, common in patients with CKD, is a predictor of cardiovascular mortality. Vitamin D deficiency, another complication of CKD, is associated with vascular calcification in patients with CKD. GFR decline, proteinuria, tubulointerstitial injury, and the therapeutic dose of active form vitamin D aggravate vitamin D deficiency and reduce its pleiotropic effect on the cardiovascular system...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28284385/igg4-related-tubulointerstitial-nephritis
#7
REVIEW
Pingchuan Zhang, Lynn D Cornell
Immunoglobulin G4 (IgG4)-related disease (IgG4-RD) is a fibroinflammatory disorder that can involve nearly any organ. The disorder has increasingly become known as a distinct clinical entity during the last decade. IgG4-related tubulointerstitial nephritis (IgG4-TIN) is the most common manifestation of IgG4-RD in the kidney. Many patients with IgG4-TIN are diagnosed after IgG4-RD has been recognized in other organ systems, but the kidney may also be the first or only site involved. The presenting clinical features of IgG4-TIN are most commonly kidney insufficiency, kidney mass lesion(s), or both...
March 2017: Advances in Chronic Kidney Disease
https://www.readbyqxmd.com/read/28284384/autosomal-dominant-tubulointerstitial-kidney-disease
#8
REVIEW
Anthony J Bleyer, Kendrah Kidd, Martina Živná, Stanislav Kmoch
There are 3 major forms of autosomal dominant tubulointerstitial kidney disease (ADTKD): ADTKD due to UMOD mutations, MUC1 mutations, and mutations in the REN gene encoding renin. Lack of knowledge about these conditions contributes to frequent nondiagnosis, but with even limited knowledge, nephrologists can easily obtain a diagnosis and improve patient care. There are 3 cardinal features of these disorders: (1) the conditions are inherited in an autosomal dominant manner and should be considered whenever both a parent and child suffer from kidney disease; the presence of even more affected family members provides further support...
March 2017: Advances in Chronic Kidney Disease
https://www.readbyqxmd.com/read/28284383/tubulointerstitial-injury-and-drugs-of-abuse
#9
REVIEW
Arani Nanavati, Leal C Herlitz
Drug abuse is widespread in many populations, and patients abusing illicit substances are at a significantly increased risk of kidney injury. The tubulointerstitial compartment is a common target of these nephrotoxic agents. This review will cover some of the common illicit drugs and will focus on the tubulointerstitial injuries seen in the setting of drug abuse. Agents addressed in this review are synthetic cannabinoids, "bath salts," ecstasy, anabolic steroids, inhaled solvents, heroin, and cocaine. The most frequent biopsy findings are those of acute tubular necrosis and acute interstitial nephritis...
March 2017: Advances in Chronic Kidney Disease
https://www.readbyqxmd.com/read/28284382/medication-induced-interstitial-nephritis-in-the-21st-century
#10
REVIEW
Cynthia C Nast
Interstitial nephritis is an immune mediated form of tubulointerstitial kidney injury that may occur secondary to drugs, autoimmune disease, infections, and hematologic disorders or as a reactive process. Drug-induced acute interstitial nephritis (DI-AIN) occurs in 0.5%-3% of all kidney biopsies and in 5%-27% of biopsies performed for acute kidney injury. Drugs are implicated in 70%-90% of biopsy-proved IN with a prevalence of 50% in less developed to 78% in more developed countries. DI-AIN typically is idiosyncratic because of a delayed hypersensitivity reaction, although some chemotherapeutic agents are permissive for immune upregulation and injure the kidney in a dose-related manner...
March 2017: Advances in Chronic Kidney Disease
https://www.readbyqxmd.com/read/28284380/clinical-approach-to-diagnosing-acute-and-chronic-tubulointerstitial-disease
#11
REVIEW
Mark A Perazella
Tubulointerstitial diseases are a relatively common cause of acute and/or chronic kidney disease. Acute tubulointerstitial nephritis (ATIN) most commonly develops in patients exposed to various medications; however, it can occur from infections, autoimmune and systemic diseases, environmental exposures, and some idiopathic causes. Chronic tubulointerstitial nephritis may develop in patients with previous ATIN or may be the initial manifestation of an autoimmune, systemic, environmental, or metabolic process...
March 2017: Advances in Chronic Kidney Disease
https://www.readbyqxmd.com/read/28284376/the-tubulointerstitial-pathophysiology-of-progressive-kidney-disease
#12
REVIEW
H William Schnaper
Accumulating evidence suggests that the central locus for the progression of CKD is the renal proximal tubule. As injured tubular epithelial cells dedifferentiate in attempted repair, they stimulate inflammation and recruit myofibroblasts. At the same time, tissue loss stimulates remnant nephron hypertrophy. Increased tubular transport workload eventually exceeds the energy-generating capacity of the hypertrophied nephrons, leading to anerobic metabolism, acidosis, hypoxia, endoplasmic reticulum stress, and the induction of additional inflammatory and fibrogenic responses...
March 2017: Advances in Chronic Kidney Disease
https://www.readbyqxmd.com/read/28284375/toward-a-comprehensive-hypothesis-of-chronic-interstitial-nephritis-in-agricultural-communities
#13
REVIEW
Carlos Manuel Orantes-Navarro, Raúl Herrera-Valdés, Miguel Almaguer-López, Laura López-Marín, Xavier Fernando Vela-Parada, Marcelo Hernandez-Cuchillas, Lilly M Barba
Over the past 20 years, there has been an increase in chronic interstitial nephritis in agricultural communities (CINAC) not associated with traditional risk factors. This disease has become an important public health problem and is observed in several countries in Central America and Asia. CINAC predominantly affects young male farmers between the third and fifth decades of life with women, children, and adolescents less often affected. Clinically, CINAC behaves like a chronic tubulointerstitial nephropathy but with systemic manifestations not attributable to kidney disease...
March 2017: Advances in Chronic Kidney Disease
https://www.readbyqxmd.com/read/28273242/evaluation-of-tgf-%C3%AE-1-and-mcp-1-expression-and-tubulointerstitial-fibrosis-in-children-with-henoch-sch%C3%A3-nlein-purpura-nephritis-and-iga-nephropathy-a-clinical-correlation
#14
Zhao Shuiai, Shen Huijun, Gu Weizhong, Liu Aimin, Mao Jianhua
OBJECTIVES: Henoch-Schönlein purpura nephritis and immunoglobulin A nephropathy are two diseases with similar clinical presentations but very different prognoses. Transforming growth factor β1 and monocyte chemoattractant protein-1 have been associated with the development of tissue fibrosis. We examined the development of tubulointerstitial fibrosis and its relationship with Transforming growth factor β1 and monocyte chemoattractant protein-1 expression in these patients. METHODS: Renal tissue samples were collected by renal biopsy from 50 children with Henoch-Schönlein purpura nephritis and 50 children with immunoglobulin A nephropathy...
February 1, 2017: Clinics
https://www.readbyqxmd.com/read/28272516/the-ligand-bound-thyroid-hormone-receptor-in-macrophages-ameliorates-kidney-injury-via-inhibition-of-nuclear-factor-%C3%AE%C2%BAb-activities
#15
Fumihiko Furuya, Toshihisa Ishii, Shogo Tamura, Kazuya Takahashi, Hidetoshi Kobayashi, Masashi Ichijo, Soichi Takizawa, Masahiro Kaneshige, Katsue Suzuki-Inoue, Kenichiro Kitamura
In chronic kidney disease (CKD) patients, inflammation plays a pivotal role in the progression of renal fibrosis. Hypothyroidism is associated with an increased occurrence of atherosclerosis and inflammation, suggesting protective roles of thyroid hormones and their receptors against inflammatory processes. The contribution of thyroid hormone receptors to macrophage differentiation has not been well documented. Here, we focused on the endogenous thyroid hormone receptor α (TRα) in macrophages and examined the role of ligand-bound TRα in macrophage polarization-mediated anti-inflammatory effects...
March 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28270898/current-metabolic-status-affects-urinary-liver-type-fatty-acid-binding-protein-in-normoalbuminuric-patients-with-type-2-diabetes
#16
Hiroyuki Ito, Hitomi Yamashita, Mina Nakashima, Akifusa Takaki, Chiduko Yukawa, Suzuko Matsumoto, Takashi Omoto, Masahiro Shinozaki, Shinya Nishio, Mariko Abe, Shinichi Antoku, Mizuo Mifune, Michiko Togane
BACKGROUND: We aimed to study the association between urinary liver-type fatty acid-binding protein (L-FABP), a biomarker of tubulointerstitial injury, and the clinical characteristics of normoalbuminuric and albuminuric patients with type 2 diabetes in order to detect the factors affecting urinary L-FABP. METHODS: Urinary L-FABP levels were measured in 788 patients with type 2 diabetes and again in 666 patients at 6 months after the initial measurement. The association between the urinary L-FABP level and the clinical parameters was investigated in a retrospective cross-sectional study and a subsequent observation...
April 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/28270699/fty720-attenuates-angiotensin-ii-induced-podocyte-damage-via-inhibiting-inflammatory-cytokines
#17
Ke Su, Ping Zeng, Wei Liang, Zhengyu Luo, Yiman Wang, Xifeng Lv, Qi Han, Miao Yan, Cheng Chen
FTY720, a new chemical substance derived from the ascomycete Isaria sinclairii, is used for treating multiple sclerosis, renal cancer, and asthma. Sphingosine 1-phosphate (S1P) is a bioactive sphingolipid metabolite and exists in red blood cells. FTY720 is a synthetic S1P analog which can block S1P evoking physiological effects. Recently studies show that S1P was participating in activated inflammation cells induced renal injury. The objective of this study was to assess the protective effect of FTY720 on kidney damage and the potential mechanism of FTY720 which alleviate podocyte injury in chronic kidney disease...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28267784/mutations-in-mitochondrial-dna-causing-tubulointerstitial-kidney-disease
#18
Thomas M Connor, Simon Hoer, Andrew Mallett, Daniel P Gale, Aurora Gomez-Duran, Viktor Posse, Robin Antrobus, Pablo Moreno, Marco Sciacovelli, Christian Frezza, Jennifer Duff, Neil S Sheerin, John A Sayer, Margaret Ashcroft, Michael S Wiesener, Gavin Hudson, Claes M Gustafsson, Patrick F Chinnery, Patrick H Maxwell
Tubulointerstitial kidney disease is an important cause of progressive renal failure whose aetiology is incompletely understood. We analysed a large pedigree with maternally inherited tubulointerstitial kidney disease and identified a homoplasmic substitution in the control region of the mitochondrial genome (m.547A>T). While mutations in mtDNA coding sequence are a well recognised cause of disease affecting multiple organs, mutations in the control region have never been shown to cause disease. Strikingly, our patients did not have classical features of mitochondrial disease...
March 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28264218/bilateral-uveitis-and-tubulointerstitial-nephritis-an-atypical-case
#19
K C Iselin, S Brandt, C Böni
No abstract text is available yet for this article.
March 6, 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28260478/ultrasonography-findings-of-acute-tubulointerstitial-nephritis-and-multiple-abscesses-following-renal-transplant-a-case-report
#20
Sehnaz Tezcan, Nihal Uslu, Ebru H Ayvazoglu Soy, Mehmet Haberal
Urinary tract infection is the most common complication after kidney transplant that can cause graft loss. An early diagnosis of urinary infections decreases morbidity and mortality. Besides clinical and laboratory examinations, ultrasonography is considered as the primary imaging modality for the diagnosis of urinary tract infections. Here, we report a 53-year-old woman who presented with fever and pain at surgical site. Ultrasonography examination showed multiple, ill-defined or irregularly margined hypoechoic areas within the cortex...
February 2017: Experimental and Clinical Transplantation
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