NephrologyPub Date : 2024-12-01Epub Date: 2024-10-21DOI: 10.1111/nep.14396
Juntai Zhang, Yan Cai, Yan Qin, Jie Liu, Jie Ding, Mengying Xu, Li Yang, Yuanxin Zheng, Xi Zhang
{"title":"Heat shock protein 70 promotes the progression of type 2 diabetic nephropathy by inhibiting T-cell immunoglobulin and mucin domain-3 and thereby promoting Th17/Treg imbalance.","authors":"Juntai Zhang, Yan Cai, Yan Qin, Jie Liu, Jie Ding, Mengying Xu, Li Yang, Yuanxin Zheng, Xi Zhang","doi":"10.1111/nep.14396","DOIUrl":"10.1111/nep.14396","url":null,"abstract":"<p><strong>Aim: </strong>Diabetic nephropathy (DN) is the most common complication of diabetes mellitus. We aimed to investigate the role of regulatory T cells (Tregs) and helper T cells 17 (Th17) in the development and progression of DN.</p><p><strong>Methods: </strong>A mouse type 2 diabetic nephropathy (T2DN) model was established. Immunohistochemistry was used to detect the expression of HSP70 and Tim-3 in mouse kidney tissues, and western blotting was used to detect the expression levels of HSP70 and Tim-3. PAS staining and Masson's trichrome staining were used to detect the degree of kidney injury. Flow cytometry was used to detect the number of Th17 and Treg cells in blood and kidney tissues. The expression levels of interleukin 17 (IL-17) and interleukin 10 (IL-10) in the serum were measured via ELISA.</p><p><strong>Results: </strong>The expression of HSP70 was significantly increased while the expression of Tim-3 was significantly decreased in the kidneys of mice in the T2DN group compared with those in the control (NC) group. Additionally, the inhibition of HSP70 upregulated the expression of Tim-3 in T2DN mice. The Th17/Treg ratio was significantly greater in the blood and kidneys of the mice in the T2DN group than in those of the NC group, the expression of serum IL-17 was increased, and the expression of IL-10 was decreased.</p><p><strong>Conclusion: </strong>Increased HSP70 inhibits Tim-3 expression in T2DN mouse kidney tissues, and subsequently causes a Th17/Treg imbalance and an inflammatory response, ultimately leading to kidney injury. The inhibition of HSP70 may alleviate the progression of T2DN.</p>","PeriodicalId":19264,"journal":{"name":"Nephrology","volume":" ","pages":"806-814"},"PeriodicalIF":2.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13546955/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142471051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NephrologyPub Date : 2024-12-01Epub Date: 2024-10-21DOI: 10.1111/nep.14406
Hiroshi Tanaka, Tomomi Aizawa, Morito Endo
{"title":"Long-term outcome of tacrolimus-based immunosuppressive treatment for patients with paediatric-onset lupus nephritis.","authors":"Hiroshi Tanaka, Tomomi Aizawa, Morito Endo","doi":"10.1111/nep.14406","DOIUrl":"10.1111/nep.14406","url":null,"abstract":"<p><strong>Aim: </strong>We have previously reported the mid-term efficacy and safety of tacrolimus (Tac)-based immunosuppressive therapy in such patients, and herein, we aimed to determine their long-term outcomes (over 10 years).</p><p><strong>Methods: </strong>We retrospectively evaluate the data of 13 consecutive patients with biopsy-proven long-standing LN who underwent a long-term Tac-based treatment regimen. Tac was administered once daily at a dose of 3 mg as reinduction or maintenance treatment. Treatment outcomes were defined using the Systemic Lupus Erythematosus Disease Activity Index (SLEDAI), urinary protein/creatinine ratio (Up/cr), serum creatinine, estimated glomerular filtration rate (eGFR) and serological lupus markers (complement C3, complement hemolytic activity [CH 50], and anti-dsDNA antibody titre), and the concomitantly administered prednisolone (PDN) dose. Data on clinical parameters and serological lupus activity were collected annually from each patient throughout the study period.</p><p><strong>Results: </strong>The patients' baseline characteristics at the treatment initiation were as follows: mean age, 18 years; Up/cr, 0.63 ± 0.69; serum C3 level, 57.2 ± 22.4 mg/dL (normal range, 79-152 mg/dL); CH50, 27.9 ± 15.7 U/mL (normal range, 23.0-46.0 U/mL); serum anti-dsDNA antibody titre, 111.7 ± 123.4 IU/mL (normal range, <12.0 IU/mL); serum creatinine, 0.60 ± 0.19 mg/dL; eGFR, 115.6 ± 21.3 mL/min and SLEDAI, 13 ± 8.1. Despite the gradual tapering of the concomitantly administered PDN dose from 18.7 ± 13.5 mg/day at baseline to 3.5 ± 2.8 mg/day at 10 years (p = .002), a marked improvement in the outcomes, compared with the baseline values, was observed within a year. Additionally, these favourable changes persisted throughout study period in most patients. Compared with the baseline values, the following measures confirmed sustained outcome improvements after a 10-year treatment: SLEDAI, 1.7 ± 2.0; serum C3 level, 83.8 ± 16.1 mg/dL; CH50, 45.6 ± 10.9 U/mL (all p < .01) and Up/cr, 0.16 ± 0.18 and serum anti-dsDNA antibody titre, 25.8 ± 28.8 IU/mL (both p < .05). Serum creatinine level and eGFR remained within the normal range in all study participants except for one patient who experienced several flare-ups. No serious adverse effects were observed.</p><p><strong>Conclusion: </strong>Our results suggest that long-term Tac-based immunosuppressive treatment as maintenance therapy is beneficial and has low cytotoxicity. Therefore, it represents an attractive option for the treatment of selected patients with paediatric-onset LN in a real-world setting.</p>","PeriodicalId":19264,"journal":{"name":"Nephrology","volume":" ","pages":"901-908"},"PeriodicalIF":2.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13547125/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142471052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NephrologyPub Date : 2024-12-01Epub Date: 2024-10-27DOI: 10.1111/nep.14410
Minako Wakasugi, Shin Goto
{"title":"An increasing trend of overweight and obesity in the Japanese incident end-stage kidney disease population.","authors":"Minako Wakasugi, Shin Goto","doi":"10.1111/nep.14410","DOIUrl":"10.1111/nep.14410","url":null,"abstract":"<p><strong>Aim: </strong>The global prevalence of overweight/obesity has been rising, and this trend is apparent in US and European incident end-stage kidney disease (ESKD) populations. We aimed to examine temporal trends in the prevalence of overweight/obesity and underweight among adult incident ESKD patients in Japan by year of dialysis initiation between 2006 and 2019 in comparison with those observed in the Japanese adult population during the same period.</p><p><strong>Methods: </strong>Using data from the Japanese Society of Dialysis Therapy Renal Data Registry and the National Health and Nutrition Survey, the sex-specific prevalence of overweight/obesity and that of underweight (BMI ≥ 25 kg/m<sup>2</sup> and <18.5 kg/m<sup>2</sup>, respectively) were calculated, adjusted for age according to the 2019 Population Census via the direct method. Average annual percentage changes (AAPCs) and corresponding 95% confidence intervals (CIs) were calculated to examine trends.</p><p><strong>Results: </strong>From 2006 to 2019, the age-adjusted prevalence of overweight/obesity in the incident ESKD population increased for males (AAPC 3.36 [95% CI, 2.70 to 4.09]) and females (AAPC 2.86 [95% CI, 1.65 to 4.19]). The age-adjusted prevalence of overweight/obesity in the general population increased for males (AAPC 0.87 [95% CI, 0.26 to 1.42]) but not for females (AAPC 0.01 [95% CI, -0.55 to 0.57]). The age-adjusted prevalence of underweight in the incident ESKD population significantly decreased but was higher than that in the general population for both sexes.</p><p><strong>Conclusion: </strong>An increasing trend of overweight/obesity was observed in the incident ESKD population in Japan. There is a pressing need to address both underweight and overweight/obesity in the incident ESKD population.</p>","PeriodicalId":19264,"journal":{"name":"Nephrology","volume":" ","pages":"884-894"},"PeriodicalIF":2.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11579560/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142504909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Renin-angiotensin blockade ameliorates the progression of glomerular injury in podocyte-specific Ctcf knockout mice.","authors":"Keisuke Fujioka, Takashi Nagai, Tomoki Hattori, Shoji Kagami, Koji Yasutomo, Niels Galjart, Teruyoshi Hirayama, Hiroshi Kawachi, Maki Urushihara","doi":"10.1111/nep.14400","DOIUrl":"10.1111/nep.14400","url":null,"abstract":"<p><strong>Aim: </strong>Several studies have shown that the progression of proteinuria and renal tissue injury is associated with activation of the intrarenal renin-angiotensin system (RAS). CCCTC-binding factor (CTCF) is a DNA-binding factor that plays an essential role in the regulation of gene expression. In the present study, we aimed to investigate the phenotypic effects of CTCF deficiency in podocytes.</p><p><strong>Methods: </strong>Angiotensin II type 1 receptor blockers (ARBs) were administered to the podocyte-specific Ctcf knockout mice, and histological and biochemical analyzes were performed. We also investigated the changes in the expression of podocin in podocyte cell cultures with or without stimulation with angiotensin II from glomeruli isolated using magnetic beads from podocyte-specific Ctcf knockout mice.</p><p><strong>Results: </strong>Mice in which Ctcf was deleted from podocytes developed glomerulopathy and mice developed severe progressive proteinuria, and impaired renal function. Moreover, ARBs suppressed the development of glomerulopathy in podocyte-specific Ctcf knockout mice. Both real-time polymerase chain reaction and western blotting showed that podocin expression was decreased in cell cultures stimulated with angiotensin II. Furthermore, RAS components gene expressions in podocyte cell cultures isolated from podocyte-specific Ctcf knockout mice were significantly increased.</p><p><strong>Conclusion: </strong>These results suggest that RAS is involved in the development of glomerulopathy in podocyte-specific Ctcf knockout mice. Elucidation of the pathophysiology of podocyte-specific Ctcf knockout mice may provide new insights into the relationship between podocyte injury and chronic glomerulonephritis.</p>","PeriodicalId":19264,"journal":{"name":"Nephrology","volume":" ","pages":"815-824"},"PeriodicalIF":2.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13546959/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142350953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NephrologyPub Date : 2024-12-01Epub Date: 2024-09-04DOI: 10.1111/nep.14385
Andrew M Fordyce, Frederiek Heenan-Vos, Tracey L Putt, Sine Donnellan, John W B Schollum, Robert J Walker
{"title":"An unusual case of Herbaspirillum huttiense bacteraemia in a haemodialysis patient.","authors":"Andrew M Fordyce, Frederiek Heenan-Vos, Tracey L Putt, Sine Donnellan, John W B Schollum, Robert J Walker","doi":"10.1111/nep.14385","DOIUrl":"10.1111/nep.14385","url":null,"abstract":"<p><p>Herbaspirillum spp. is a common environmental bacterium usually found in soil, plant roots, and water. It is rarely associated with infection in immunocompromised patients, and rarely reported infections in immunocompetent patients. We report the first case of a Herbaspirillum huttiense bacteraemia in a non-neutropenic home haemodialysis patient. A 57-year-old male presented to our hospital with a 3-day history of malaise, fevers, rigours, and anorexia following dialysis through his central line. On examination, he was pyrexic (temperature 38.7°C) with splinter haemorrhages noted, but no other signs of infection were present. Blood cultures revealed a polymicrobial infection, with Serratia liquefaciens and Corynebacterium jeikeium isolated from the central line and Herbaspirillum sp. was isolated from both the central line and a peripheral culture. A later peripheral blood culture following central line removal isolated Herbaspirillum huttiense. Regular biological testing of his home water supply and dialysate detected no colony forming units of non-fermenting gram-negative bacilli. He was initially treated with ceftriaxone and vancomycin initially, followed by ertapenem and vancomycin. Intravenous antibiotics were ceased following 5 days after central line removal and he made an uneventful recovery.</p>","PeriodicalId":19264,"journal":{"name":"Nephrology","volume":" ","pages":"960-963"},"PeriodicalIF":2.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11579563/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142126281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NephrologyPub Date : 2024-12-01Epub Date: 2024-09-08DOI: 10.1111/nep.14380
Vivek B Kute, Himanshu V Patel, Subho Banerjee, Divyesh P Engineer, Ruchir B Dave, Nauka Shah, Sanshriti Chauhan, Harishankar Meshram, Priyash Tambi, Akash Shah, Khushboo Saxena, Manish Balwani, Vishal Parmar, Shivam Shah, Ved Prakash, Sudeep Patel, Dev Patel, Sudeep Desai, Jamal Rizvi, Harsh Patel, Beena Parikh, Kamal Kanodia, Shruti Gandhi, Michael A Rees, Alvin E Roth, Pranjal Modi
{"title":"Impact of single centre kidney-exchange transplantation to increase living donor pool in India: A cohort study involving non-anonymous allocation.","authors":"Vivek B Kute, Himanshu V Patel, Subho Banerjee, Divyesh P Engineer, Ruchir B Dave, Nauka Shah, Sanshriti Chauhan, Harishankar Meshram, Priyash Tambi, Akash Shah, Khushboo Saxena, Manish Balwani, Vishal Parmar, Shivam Shah, Ved Prakash, Sudeep Patel, Dev Patel, Sudeep Desai, Jamal Rizvi, Harsh Patel, Beena Parikh, Kamal Kanodia, Shruti Gandhi, Michael A Rees, Alvin E Roth, Pranjal Modi","doi":"10.1111/nep.14380","DOIUrl":"10.1111/nep.14380","url":null,"abstract":"<p><strong>Aim: </strong>In India, 85% of organ donations are from living donors and 15% are from deceased donors. One-third of living donors were rejected because of ABO or HLA incompatibility. Kidney exchange transplantation (KET) is a cost-effective and legal strategy to increase living donor kidney transplantation (LDKT) by 25%-35%.</p><p><strong>Methods: </strong>We report our experience with 539 KET cases and the evolution of a single-centre program to increase the use of LDKT.</p><p><strong>Results: </strong>Between January 2000 and 13 March, 2024, 1382 deceased donor kidney transplantations and 5346 LDKT were performed at our centre, including 10% (n = 539) from KET. Of the 539 KET, 80.9% (n = 436) were ABO incompatible pairs, 11.1% (n = 60) were compatible pairs, and 8% (n = 43) were sensitized pairs. There were 75% 2-way (n = 2 × 202 = 404), 16.2% 3-way (n = 3 × 29 = 87), 3% 4-way (n = 4 × 4 = 16), 1.8% 5-way (n = 5 × 2 = 10), 2.2% 6-way (n = 6 × 2 = 12), and 1.8% 10-way KET (n = 10 × 1 = 10). Of the recipients 81.2% (n = 438) were male and 18.8% (n = 101) were female, while of the donors, 78.5% (n = 423) were female and 21.5% (n = 116) were male. All donors were near relatives; wives (54%, n = 291) and mothers (20%, n = 108) were the most common donors. At a median follow-up of 8.2 years, patient survival, death censored graft survival, acute rejection, and median serum creatinine levels of functioning grafts were 81.63% (n = 440), 91% (n = 494), 9.8% (n = 53) and 1.3 mg/dL respectively. We credited the success to maintaining a registry of incompatible pairs, high-volume LDKT programs, non-anonymous allocation and teamwork.</p><p><strong>Conclusion: </strong>This is the largest single-centre KET program in Asia. We report the challenges and solutions to replicate our success in other KET programs.</p>","PeriodicalId":19264,"journal":{"name":"Nephrology","volume":" ","pages":"917-929"},"PeriodicalIF":2.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13546964/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142154697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NephrologyPub Date : 2024-12-01Epub Date: 2024-10-13DOI: 10.1111/nep.14403
Pankaj Jawandhiya, Ankur Gupta
{"title":"NELL-1 membranous nephropathy due to mercury exposure from fairness cream: Report of two cases.","authors":"Pankaj Jawandhiya, Ankur Gupta","doi":"10.1111/nep.14403","DOIUrl":"10.1111/nep.14403","url":null,"abstract":"<p><p>Mercury contained in beauty-enhancing cosmetics can cause chronic poisoning and membranous nephropathy (MN). We report two cases of nephrotic syndrome caused by MN with evidence of mercury poisoning due to the application of fairness cream in a short duration of a few months. The individuals were positive for neural epidermal growth factor-like 1 [NELL-1]. Discontinuation of the use of cosmetic products and modified Ponticelli regimen improved the nephrotic state in these individuals. We suggest that mercury poisoning should be considered in NELL-1-positive individuals with a history of application of beauty products.</p>","PeriodicalId":19264,"journal":{"name":"Nephrology","volume":" ","pages":"996-999"},"PeriodicalIF":2.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13546958/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142471053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NephrologyPub Date : 2024-12-01Epub Date: 2024-10-13DOI: 10.1111/nep.14401
Xiaoyu Liu, Wenchao Sheng, Nan Liu, Wenxuan Fan, Shuyue Zhang, Yuanyuan Sun, Yingzi Cai, Dong Li, Jianbo Shu, Chunquan Cai
{"title":"Refining the genetic diagnostic puzzle: A case report on a Chinese ARPKD patient with a reciprocal balanced translocation and c.2507 T > C (p.V836A) in PKHD1.","authors":"Xiaoyu Liu, Wenchao Sheng, Nan Liu, Wenxuan Fan, Shuyue Zhang, Yuanyuan Sun, Yingzi Cai, Dong Li, Jianbo Shu, Chunquan Cai","doi":"10.1111/nep.14401","DOIUrl":"10.1111/nep.14401","url":null,"abstract":"<p><strong>Introduction: </strong>Autosomal recessive polycystic kidney disease (ARPKD) ranks among the most severe chronic kidney diseases (CKD). Its primary cause is variants in the Polycystic Kidney and Hepatic Disease 1 gene (PKHD1). The clinical spectrum of ARPKD varies widely, ranging from mild late-onset symptoms to severe perinatal mortality. However, achieving an early genetic diagnosis in ARPKD patients before clinical symptoms appear proves challenging.</p><p><strong>Case presentation: </strong>This case is a 4-year-old boy who experienced a convulsion characterized by a generalized tonic attack lasting approximately 3-5 minutes and later sought treatment to our hospital. However, routine abdominal ultrasound examination accidentally detected that he had diffuse liver lesions, splenomegaly, and bilateral renal enlargement with renal pelvis dilation. Given the uncertainty regarding the underlying cause of the patient's structural abnormalities and convulsions, karyotyping, whole exome sequencing (WES), structural variant analysis (SV analysis) of whole genome sequencing (WGS) were recommended. The result of SV analysis revealed that he has an RBT impacting PKHD1 and the precise location of breakpoints was confirmed through Long-Range Polymerase Chain Reaction (LR-PCR). However, WES did not screen out pathogenic variants initially, the WES data was reviewed subsequently based on SV analysis results.</p><p><strong>Conclusion: </strong>We identified an infrequent variant combination, c.2507T>C (p.V836A) in PKHD1 and an RBT with broken PKHD1, which extends the genetic spectrum of ARPKD, and provide a basis for further genetic counselling to the family.</p>","PeriodicalId":19264,"journal":{"name":"Nephrology","volume":" ","pages":"990-995"},"PeriodicalIF":2.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13546945/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142471056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NephrologyPub Date : 2024-12-01Epub Date: 2024-09-30DOI: 10.1111/nep.14397
William R Mulley, Peter D Hughes, Michael G Collins, Helen L Pilmore, Philip A Clayton, Melanie L Wyld, Darren Lee, Jane van der Jeugd, Sanduni C Fernando, Stephanie Fang-Tzu Kuo, Sarah Tan, Sadia Jahan, Wai H Lim
{"title":"Defining causes of death-censored kidney allograft failure: A 5-year multicentre ANZDATA and clinical cross-sectional study.","authors":"William R Mulley, Peter D Hughes, Michael G Collins, Helen L Pilmore, Philip A Clayton, Melanie L Wyld, Darren Lee, Jane van der Jeugd, Sanduni C Fernando, Stephanie Fang-Tzu Kuo, Sarah Tan, Sadia Jahan, Wai H Lim","doi":"10.1111/nep.14397","DOIUrl":"10.1111/nep.14397","url":null,"abstract":"<p><strong>Aim: </strong>Determining specific causes of allograft failure allows a focus on understanding and treating these conditions. Previous studies highlight chronic antibody-mediated rejection as a leading cause of late allograft failure. We sought to define causes of allograft failure in a large cohort of kidney transplant recipients across multiple centres in Australia and New Zealand, including cases previously attributed to chronic allograft nephropathy (CAN).</p><p><strong>Methods: </strong>All death-censored allograft failures at 9 participating centres between 1 January 2014 to 31 December 2018 were included. Available clinical and biopsy data were reviewed and the \"most likely\" cause assigned.</p><p><strong>Results: </strong>There were 642 death-censored allograft failures in the study period. Of these, 495 (77.1%) had an informative biopsy performed a median of 13.4 months (IQR 2.5-39.1 months) prior to allograft failure. Rejection of any type was the leading cause of allograft failure (47.5%), comprised chiefly of chronic antibody-mediated rejection (37.4%) and chronic T-cell mediated rejection (6.4%). Other leading causes were undifferentiated interstitial fibrosis and tubular atrophy (10.8%), late medical and surgical complications (8.1%) and recurrent or de novo glomerulonephritis (7.0%). Polyoma viral nephropathy and calcineurin inhibitor toxicity each contributed to <2%. Causes of allograft failure previously attributed to CAN (n = 419, 65.3%) had a similar distribution to the overall cohort, with 43.9% attributed to chronic antibody-mediated rejection.</p><p><strong>Conclusion: </strong>To prolong allograft survival, improved strategies are needed to curtail alloimmune responses. Greater understanding of the causes of undifferentiated interstitial fibrosis and tubular atrophy and potential treatments would also be of considerable benefit.</p>","PeriodicalId":19264,"journal":{"name":"Nephrology","volume":" ","pages":"930-940"},"PeriodicalIF":2.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11579561/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142350951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NephrologyPub Date : 2024-12-01Epub Date: 2024-09-27DOI: 10.1111/nep.14399
Lianlian Yang, Guang Yang, Hui Guo
{"title":"First patient diagnosed with lipoprotein glomerulopathy and Alport syndrome.","authors":"Lianlian Yang, Guang Yang, Hui Guo","doi":"10.1111/nep.14399","DOIUrl":"10.1111/nep.14399","url":null,"abstract":"<p><p>Alport syndrome (AS) is one of the most common inherited kidney disorders, involving pathogenic variants of COL4A3, COL4A4 and COL4A5 genes that lead to disruption of the normal structure of collagen IV protein through improper chain or heterotrimer folding or degradation of heterotrimer components. Lipoprotein glomerulopathy (LPG) is an autosomal dominant disease involving APOE gene mutations disturbing lipoprotein metabolism. We report the first case with both AS and LPG in an 11-year-old girl. The patient presented with blepharedema, and decreased vision. Laboratory examinations showed hematemesis, proteinuria, hypoproteinemia, hyperlipidemia and progressive renal failure. Renal biopsy showed the changes of LPG and AS. Whole-exome sequencing (WES) identified two pathogenic variants, c.127C > T in exon 3 of APOE gene, and c.930 + 1G > A in exon 15 of COL4A4 gene. We emphasize the importance of early completion of renal biopsy and WES for early diagnosis of LPG and AS.</p>","PeriodicalId":19264,"journal":{"name":"Nephrology","volume":" ","pages":"985-989"},"PeriodicalIF":2.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13546937/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142350952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}