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https://www.readbyqxmd.com/read/29467404/basal-condensation-of-numb-and-pon-complex-via-phase-transition-during-drosophila-neuroblast-asymmetric-division
#1
Zelin Shan, Yuting Tu, Ying Yang, Ziheng Liu, Menglong Zeng, Huisha Xu, Jiafu Long, Mingjie Zhang, Yu Cai, Wenyu Wen
Uneven distribution and local concentration of protein complexes on distinct membrane cortices is a fundamental property in numerous biological processes, including Drosophila neuroblast (NB) asymmetric cell divisions and cell polarity in general. In NBs, the cell fate determinant Numb forms a basal crescent together with Pon and is segregated into the basal daughter cell to initiate its differentiation. Here we discover that Numb PTB domain, using two distinct binding surfaces, recognizes repeating motifs within Pon in a previously unrecognized mode...
February 21, 2018: Nature Communications
https://www.readbyqxmd.com/read/29465375/pauci-immune-crescentic-glomerulonephritis-in-a-patient-with-b-lymphocyte-poly-autoreactivity
#2
Haralampos M Moutsopoulos, Hariklia Gakiopoulou
No abstract text is available yet for this article.
January 31, 2018: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/29459092/revision-of-the-international-society-of-nephrology-renal-pathology-society-classification-for-lupus-nephritis-clarification-of-definitions-and-modified-national-institutes-of-health-activity-and-chronicity-indices
#3
Ingeborg M Bajema, Suzanne Wilhelmus, Charles E Alpers, Jan A Bruijn, Robert B Colvin, H Terence Cook, Vivette D D'Agati, Franco Ferrario, Mark Haas, J Charles Jennette, Kensuke Joh, Cynthia C Nast, Laure-Hélène Noël, Emilie C Rijnink, Ian S D Roberts, Surya V Seshan, Sanjeev Sethi, Agnes B Fogo
We present a consensus report pertaining to the improved clarity of definitions and classification of glomerular lesions in lupus nephritis that derived from a meeting of 18 members of an international nephropathology working group in Leiden, Netherlands, in 2016. Here we report detailed recommendations on issues for which we can propose adjustments based on existing evidence and current consensus opinion (phase 1). New definitions are provided for mesangial hypercellularity and for cellular, fibrocellular, and fibrous crescents...
February 16, 2018: Kidney International
https://www.readbyqxmd.com/read/29456227/a-case-of-renal-granulomatosis-with-polyangiitis-following-intravesical-bacillus-calmette-gu%C3%A3-rin-therapy
#4
Yosra Selmi, Rania Kheder-Elfekih, Hela Jebali, Lilia Ben Fatma, Wided Smaoui, Madiha Krid, Soumaya Beji, Lamia Rais, Mohamed Karim Zouaghi
Various adverse reactions may occur after intravesical bacillus Calmette-Guérin (BCG) therapy. Although the virulence of attenuated BCG is low, serious complications such as bacterial cystitis, bladder contractures, granulomatous prostatitis, epididymitis, orchitis, and systemic reactions such as fever and malaise have been described. Disseminated granulomatosis such as hepatitis and pneumonitis have also been described, but are rare. We report here the case of a 67-year-old patient who presented with renal granulomatosis with polyangiitis following intravesical BCG therapy for superficial bladder tumor...
January 2018: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/29456220/importance-of-renal-biopsy-in-patients-aged-60-years-and-older-experience-from-a-tertiary-care-hospital
#5
Pallav Gupta, Devinder Singh Rana
As the life expectancy is increasing, there is a rise in elderly population and consequent increase in the patients with renal disease. There is an inconsistency between clinical and histopathological diagnosis in elderly, and so renal biopsy is important in these patients to decide appropriate clinical management and prognosis. This study outlines the importance of renal biopsy in elderly and describes the clinical and pathologic spectrum of renal diseases in patient ≥60 years. All patients (age ≥60 years) undergoing renal biopsies from January 2011 to December 2014 were included in this retrospective study...
January 2018: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/29456219/descriptive-analysis-of-glomerulonephritis-by-histological-type-and-their-progression-among-adults-in-a-tertiary-care-center-in-sri-lanka
#6
Kawmadi W Gunawardena, Eranga S Wijewickrama, Carukshi Arambepola, Rushika D Lanerolle
Prevalence of different glomerulonephritides and their clinical course vary geographically. Our objectives are to assess the prevalence of different histological types of glomerulonephritis (GN) based on the light microscopic histology and to assess their progression according to histological type. A retrospective cross-sectional study was carried out among adult patients (>18 years) with a histological diagnosis of GN at the University Professorial Unit over a period of six months. Information including demographic data, renal biopsy findings, and progression of the disease through serum creatinine (SCr) level were collected through existing clinic records of consenting patients...
January 2018: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/29456207/medical-renal-disease-in-tumor-nephrectomies-the-silent-killer
#7
Rohit Tewari, Rajat Bajaj, Reena Bharadwaj
In tumor nephrectomy specimens, the evaluation of the normal renal parenchyma is often overlooked. A patient with both end-stage renal diseases (ESRDs) with a renal cell carcinoma is more likely to die of the ESRD rather than cancer. At the time of nephrectomy, a pathologist has a large amount of tissue available to him to comment upon the presence of disease in the nonneoplastic kidney. Hence, this study was undertaken with the idea of characterizing disease in the nonneoplastic kidney at the time of tumor nephrectomy...
January 2018: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/29449520/-a-case-of-hypertrophic-pachymeningitis-with-symptomatic-venous-congestion-due-to-sinus-stenosis
#8
Sho Umegaki, Shin-Ichiro Osawa, Kensuke Kimura, Toshimi Okushima, Nobuhisa Yajima, Tsuyoshi Kawamura, Teiji Tominaga
We report a patient with hypertrophic pachymeningitis and symptomatic stenosis of the superior sagittal sinus. A 71-year-old man presented with right hemiparesis, sensory-dominant aphasia, and right hemispatial neglect that had been worsening over 2 weeks. Computed tomography showed isodense crescent-shaped lesions deforming the surface of the left cerebral hemisphere, mimicking a subdural hematoma with atypical perifocal edema in the left parietal lobe. Magnetic resonance imaging showed diffuse thickening of the dura mater with contrast enhancement of his left cerebral hemisphere...
February 2018: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/29449502/the-crescentic-implication-of-renal-outcomes-in-proliferative-lupus-nephritis
#9
Fanghao Cai, Fei Han, Hongya Wang, Haidongqin Han, Jingyun Le, Lan Lan, Ying Xu, Jianghua Chen
OBJECTIVE: To determine the association between crescents and renal outcomes, and the implications on therapeutic choices. METHODS: There were 231 patients with biopsy-proven proliferative lupus nephritis (PLN) who were divided into 4 groups: 59 patients were in the noncrescent group (NC); 59 patients exclusively with segmental crescents were in the segmental crescent group (SC); patients with circumferential crescents were categorized into 2 groups according to the crescentic ratio (C1 had 64 patients with ≤ 25%, and C2 had 49 patients with > 25%)...
February 15, 2018: Journal of Rheumatology
https://www.readbyqxmd.com/read/29437730/tuberculosis-and-pauci-immune-crescentic-glomerulonephritis
#10
Jonathan Oxley Oxland, Jason Ensor, Robert Freercks
We report here a case that highlights tuberculosis (TB) as a possible cause for pauci-immune crescentic glomerulonephritis (c-GN), an important and often treatable cause of kidney injury. A 47-year-old HIV-negative man of mixed ethnicity presented with a 2-week history of cough, haemoptysis and unintentional weight loss. Chest examination revealed crepitations over the right upper zone and urinalysis demonstrated an active urinary sediment with red cell casts. Chest radiograph confirmed right upper lobe cavitation...
February 5, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29434134/a-rare-case-of-lupus-nephritis-presenting-as-thrombotic-microangiopathy-with-diffuse-pseudotubulization-possibly-caused-by-atypical-hemolytic-uremic-syndrome
#11
Masafumi Ono, Naro Ohashi, Akio Namikawa, Naoko Katahashi, Sayaka Ishigaki, Naoko Tsuji, Shinsuke Isobe, Takamasa Iwakura, Yukitoshi Sakao, Takayuki Tsuji, Akihiko Kato, Yoshihide Fujigaki, Akira Shimizu, Hideo Yasuda
A 31-year-old woman was admitted to our hospital for thrombotic microangiopathy (TMA). She was diagnosed with systemic lupus erythematosus (SLE) and class V lupus nephritis. She had no aggravated SLE activity, Shiga toxin positivity, ADAMTS13 abnormality, or other causes of secondary TMA. Plasma exchange partially improved TMA, and eculizumab was introduced for suspected atypical hemolytic uremic syndrome (aHUS), as eculizumab was effective in suppressing the TMA activity. A kidney biopsy revealed diffusely organized crescents (pseudotubulization) with glomerular and arteriolar endothelial injury and subepithelial immune deposits...
February 9, 2018: Internal Medicine
https://www.readbyqxmd.com/read/29432215/an-update-on-predicting-renal-progression-in-iga-nephropathy
#12
Sean Barbour, Heather Reich
PURPOSE OF REVIEW: Immunoglobulin A (IgA) nephropathy (IgAN) is a heterogeneous disease, and predicting individual patient risk of renal progression is challenging. Recent studies provide new evidence regarding the use of clinical, histologic, and biomarker predictors of renal outcome in IgAN. RECENT FINDINGS: A meta-analysis of clinical trials demonstrated that early change in proteinuria is a valid surrogate outcome measure for longer term decline in renal function, which supports the use of proteinuria to dynamically re-evaluate patient prognosis over time...
February 9, 2018: Current Opinion in Nephrology and Hypertension
https://www.readbyqxmd.com/read/29431224/a-new-species-of-curimatopsis-steindachner-characiformes-curimatidae-from-the-rio-nhamund%C3%A3-amazon-basin
#13
G M Dutra, B F Melo, A L Netto-Ferreira
A new species of Curimatopsis is described from the Rio Nhamundá, Amazon basin in northern Brazil. The new species is distinguished from congeners by the presence of a distinctive concentration of dark pigmentation over the entire lower lobe of the caudal fin, reticulate pattern of body pigmentation, lower jaw longer than and overlapping the anterior portion of the upper jaw, crescent-shaped posterior nostril and by morphometric and meristic data. Comments on the phylogenetic position of the new species within Curimatopsis are also provided...
February 2018: Journal of Fish Biology
https://www.readbyqxmd.com/read/29429752/patterns-of-clinical-response-to-eculizumab-in-patients-with-c3-glomerulopathy
#14
Moglie Le Quintrec, Anne-Laure Lapeyraque, Arnaud Lionet, Anne-Laure Sellier-Leclerc, Yahsou Delmas, Véronique Baudouin, Eric Daugas, Stéphane Decramer, Leila Tricot, Mathilde Cailliez, Philippe Dubot, Aude Servais, Catherine Mourey-Epron, Franck Pourcine, Chantal Loirat, Véronique Frémeaux-Bacchi, Fadi Fakhouri
BACKGROUND: Cases reports and small series of patients with C3 glomerulopathy have reported variable efficacy of eculizumab. STUDY DESIGN: Case series of C3 glomerulopathy. SETTING & PARTICIPANTS: Pediatric and adult patients with C3 glomerulopathy treated with eculizumab between 2010 and 2016 were identified through the C3 glomerulopathy French registry database, and a questionnaire was sent to participating French pediatric and adult nephrology centers, as well as one pediatric referral center in Québec, Canada...
February 8, 2018: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/29429215/-a-clinican-linical-analysis-of-29-cases-of-chronic-pulmonary-aspergillosis
#15
L Y Xu, G X Lai, Q Hu, L Zhang, D L Liu, G B Zhu, X H Li, H H Shi, C Xu, Y H Yu, Y W Bao, W Chen
Objective: To improve the understanding of chronic pulmonary aspergillosis (CPA) by analyzing the clinical manifestations, imaging and pathological features, diagnosis, treatment and prognosis of this disease. Methods: Cases of CPA, proven by microbiological evidence based on pathological study in Fuzhou General Hospital of the People's Liberation Army and Affiliated Fuzhou City First Hospital of Fijian Medical University from January 2006 to October 2016 were retrospectively analyzed. Results: The patients consisted of 17 males and 12 females, aged 24 to 75 years, mean (42±16) years...
February 12, 2018: Chinese Journal of Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/29428263/evidence-based-diagnosis-and-management-of-chronic-subdural-hematoma-a-review-of-the-literature
#16
REVIEW
Vikram Mehta, Stephen C Harward, Eric W Sankey, Gautam Nayar, Patrick J Codd
Chronic subdural hematomas are encapsulated blood collections within the dural border cells with characteristic outer "neomembranes". Affected patients are more often male and typically above the age of 70. Imaging shows crescentic layering of fluid in the subdural space on a non-contrast computed tomography (CT) scan, best appreciated on sagittal or coronal reformats. Initial medical management involves reversing anticoagulant/antiplatelet therapies, and often initiation of anti-epileptic drugs (AEDs). Operative interventions, such as twist-drill craniostomy (TDC), burr-hole craniostomy (BHC), and craniotomy are indicated if imaging implies compression (maximum fluid collection thickness >1 cm) or the patient is symptomatic...
February 7, 2018: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/29424337/successful-use-of-rituximab-in-glomerular-basement-membrane-nephritis-associated-with%C3%A2-hiv-interstitial-nephritis-secondary-to-castleman-disease%C3%A2
#17
Nathan Calabro, Kammi Henriksen, Seah H Lim, Eric Kerns
We report a case of glomerular basement membrane crescentic glomerulonephritis and multicentric Castleman disease-associated interstitial nephritis in a patient with human immunodeficiency virus (HIV) infection. The patient received corticosteroids, cyclophosphamide, and plasmapheresis, and within 3 weeks, there was worsening thrombocytopenia, anemia, and renal function requiring initiation of hemodialysis. He then received 8 weekly doses of rituximab, and there was steady improvement in renal function, such that he stopped dialysis within 6 weeks and has remained in disease remission at 1-year follow-up...
February 9, 2018: Clinical Nephrology
https://www.readbyqxmd.com/read/29421944/metabolomic-evaluation-of-euphorbia-pekinensis-induced-nephrotoxicity-in-rats
#18
Zhenzhen Liu, Yan Zeng, Pengyi Hou
CONTEXT: Euphorbia pekinensis Rupr. (Euphorbiaceae) has long been used in the Orient, while its clinical use was limited due to its nephrotoxic effect. OBJECTIVE: The possible mechanism of nephrotoxicity of Euphorbia pekinensis (EPR) and its related constituents were investigated. MATERIALS AND METHODS: Petroleum ether (PE), acetic ether (AE) and n-butanol (BUT) extracted sections of EPR were separately given to Wistar rats by gavage at the dose of 3 g/kg/day for 10 weeks to determine the nephrotoxic section of EPR...
December 2018: Pharmaceutical Biology
https://www.readbyqxmd.com/read/29420597/geographical-and-environmental-determinants-of-the-genetic-structure-of-wild-barley-in-southeastern-anatolia
#19
Reza Pournosrat, Selma Kaya, Salar Shaaf, Benjamin Kilian, Hakan Ozkan
Despite the global value of barley, compared to its wild progenitor, genetic variation in this crop has been drastically reduced due to the process of domestication, selection and improvement. In the medium term, this will negatively impact both the vulnerability and yield stability of barley against biotic and abiotic stresses under climate change. Returning to the crop wild relatives (CWR) as sources of new and beneficial alleles is a clear option for enhancing the resilience of diversity and adaptation to climate change...
2018: PloS One
https://www.readbyqxmd.com/read/29410298/renal-outcomes-in-primary-iga-nephropathy-patients-with-segmental-glomerular-necrosis-a-case-control-study
#20
Min Pan, Ji Zhang, Xiaohan You, Duo Li, Yinqiu Lv, Jianna Zhang, Xiaokai Ding, Zhanyuan Li, Feifei Xu, Chaosheng Chen
The renal prognosis and treatment of primary IgA nephropathy (IgAN) patients with segmental glomerular necrosis (SGN) remain controversial. Patients with primary IgAN confirmed by renal biopsy were enrolled. Patients with SGN on renal biopsy were selected as the necrosis group, and a propensity score matching method was used to match a control group according to age, gender, weight, height and follow-up time. A total of 825 IgAN patients were enrolled in the present study. Seventy-three (8.8%) patients with SGN were selected as the necrosis group, and 292 patients without SGN were matched as the control group...
February 1, 2018: Human Pathology
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