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American Journal of Nephrology

Nicole A Pilch, Vinayak Rohan, Vinaya Rao, Patrick D Mauldin, Zemin Su, Derek A Dubay, Thomas A Morinelli, David J Taber
BACKGROUND: Several studies have been performed to evaluate surrogate markers of long-term allograft function in renal transplant recipients. These include serum creatinine, estimated glomerular filtration rate (eGFR), slope of eGFR, and more recently eGFR variability. The aim of this study was to measure eGFR slope while assessing the variability of this slope and if high variability occurring at any time post-transplant was predictive of poorer long-term outcomes in a large cohort of kidney transplant recipients...
March 14, 2018: American Journal of Nephrology
Suwasin Udomkarnjananun, Natavudh Townamchai, Pajaree Chariyavilaskul, Kroonpong Iampenkhae, Krit Pongpirul, Boonchoo Sirichindakul, Kamol Panumatrassamee, Jakapat Vanichanan, Yingyos Avihingsanon, Somchai Eiam-Ong, Kearkiat Praditpornsilpa
BACKGROUND: Tacrolimus is mainly metabolized by cytochrome P450 3A5 (CYP3A5), which is expressed in the liver. However, CYP3A5 is also expressed in the kidney tissue and may contribute to local tacrolimus clearance in the kidney allograft. We aimed to evaluate the association between the allograft CYP3A5 genotype and transplant outcomes. METHODS: We conducted a retrospective cohort study at the King Chulalongkorn Memorial Hospital, Thailand, comparing 2 groups of donor and recipient CYP3A5 genotypes, the expressor (*1/*1 and *1/*3) and the non-expressor (*3/*3)...
March 14, 2018: American Journal of Nephrology
Wei Chen, David A Bushinsky
No abstract text is available yet for this article.
March 13, 2018: American Journal of Nephrology
Shoji Tsuji, Chikushi Suruda, Masaki Hashiyada, Takahisa Kimata, Sohsaku Yamanouchi, Tetsuya Kitao, Jiro Kino, Atsushi Akane, Kazunari Kaneko
BACKGROUND: While the etiology of idiopathic nephrotic syndrome (idiopathic nephrotic syndrome [INS]; characterized by repeated relapses and comorbid allergic conditions) remains unknown, recent evidence suggests that dysfunction in regulatory T cells (Tregs) plays an important role in the development of INS as well as allergic diseases. We hypothesized that dysbiosis involving decreased butyric acid-producing gut microbiota leads to defective induction and differentiation of peripherally induced Tregs, resulting in INS relapse...
March 13, 2018: American Journal of Nephrology
Janice Crespo-Salgado, Tyrus Stewart, Diego H Aviles
No abstract text is available yet for this article.
March 13, 2018: American Journal of Nephrology
Deidra C Crews, Tanushree Banerjee, Donald E Wesson, Hal Morgenstern, Rajiv Saran, Nilka Ríos Burrows, Desmond E Williams, Neil R Powe
BACKGROUND: Dietary acid load (DAL) contributes to the risk of CKD and CKD progression. We sought to determine the relation of DAL to racial/ethnic differences in the risk of end-stage renal disease (ESRD) among persons with CKD. METHODS: Among 1,123 non-Hispanic black (NHB) and non-Hispanic white (NHW) National Health and Nutrition Examination Survey III participants with estimated glomerular filtration rate 15-59 mL/min/1.73 m2, DAL was estimated using the Remer and Manz net acid excretion (NAEes) formula and 24-h dietary recall...
March 9, 2018: American Journal of Nephrology
Kamyar Kalantar-Zadeh, Vidhya Parameswaran, Linda H Ficociello, Ludmila Anderson, Norma J Ofsthun, Christopher Kwoh, Claudy Mullon, Robert J Kossmann, Daniel W Coyne
BACKGROUND: A database analysis was conducted to assess the effectiveness of sucroferric oxyhydroxide (SO) on lowering serum phosphorus and phosphate binder (PB) pill burden among adult peritoneal dialysis (PD) patients prescribed SO as part of routine care. METHODS: Adult PD patients (n = 258) prescribed SO through a renal pharmacy service were analyzed. Baseline was 3 months before SO prescription. SO-treated follow-up was for 6 months or until either a new PB was prescribed, SO was not refilled, PD modality changed, or patient was discharged...
March 7, 2018: American Journal of Nephrology
Ya-Zi Yang, Li-Jun Liu, Su-Fang Shi, Jin-Wei Wang, Yu-Qing Chen, Ji-Cheng Lv, Hong Zhang
BACKGROUND: Hydroxychloroquine (HCQ) is a well-known immunomodulator that is useful as in the treatment for lupus because of its inhibitory effect on toll-like receptors and cytokines, which are speculated to play a role in the pathogenesis of Immunoglobulin A (IgA) nephropathy (IgAN). However, there was only one study that investigated the effect of HCQ on proteinuria in patients with IgAN. METHODS: Ninety patients with IgAN who received HCQ in addition to optimized dosage of renin-angiotensin-aldosterone system inhibitors (RAASi) were recruited for this study, and 90 matched historical controls who received RAASi alone were selected from our registry by the propensity score matching method...
March 2, 2018: American Journal of Nephrology
Amir Kazory, Edward A Ross
No abstract text is available yet for this article.
February 22, 2018: American Journal of Nephrology
Rachel E Patzer, Mohua Basu, Kayla D Smith, Laura Plantinga, Sumit Mohan, Cam Escoffery, Joyce J Kim, Taylor Melanson, Stephen O Pastan
It is unknown whether dialysis facility staff are aware of the new kidney allocation system implemented in December 2014, which changed how deceased donor kidneys are allocated and waiting time is calculated. U.S. dialysis facilities with low annual waitlisting (<15.2%) were surveyed as part of a large randomized study. Among 653 facilities, 57.9% of staff were aware of the policy change, with medical directors (84.4%) being more aware than social workers (73.3%), facility administrators (53.1%), nurse managers (46...
February 22, 2018: American Journal of Nephrology
Jwa-Kyung Kim, Young Rim Song, Hyung Seok Lee, Hyung Jik Kim, Sung Gyun Kim
BACKGROUND: Fluid overload is a major risk factor for mortality in patients undergoing peritoneal dialysis (PD). However, few studies have investigated the effect of chronic exposure to sustained fluid overload on long-term outcomes. METHOD: A total of 284 prevalent PD patients were included in this prospective study. Repeated multifrequency body composition analysis was performed 12 months apart, and 1-year cumulative chronic fluid overload were used to predict all-cause mortality and the risk for transfer to hemodialysis (HD) during the ensuing 15...
February 22, 2018: American Journal of Nephrology
Laurent Bitker, Florence Sens, Cécile Payet, Ségolène Turquier, Antoine Duclos, Vincent Cottin, Laurent Juillard
BACKGROUND: Pulmonary arterial hypertension (PAH) may lead to right heart failure and subsequently alter glomerular filtration rates (GFR). Chronic kidney disease (CKD, GFR <60 mL/min/1.73 m2) may also adversely affect PAH prognosis. This study aimed to assess how right heart hemodynamics was associated with reduced estimated GFR (eGFR) and the association of CKD with survival in PAH patients. METHODS: In a prospective PAH cohort (2003-2012), invasive hemodynamics and eGFR were collected at diagnosis (179 patients) and during follow-up (159 patients)...
2018: American Journal of Nephrology
Kaiyue Zhang, Wenjuan Sun, Lai Zhang, Xuefang Xu, Jidong Wang, Yan Hong
BACKGROUND: Podocyte injury is a hallmark of minimal change disease (MCD). Calcineurin inhibitors have been widely used in the current treatment of MCD, and miR-499 may target calcineurin. We aimed to study the function of miR-499 in MCD and test whether miR-499 delivery can improve MCD. METHODS: An MCD mouse model was generated using puromycin aminonucleoside (PAN). MiR-499 was delivered using lentiviruses. Biochemical indicators including serum albumin, triglyceride, cholesterol, and 24-h urine protein were determined...
February 15, 2018: American Journal of Nephrology
Donald F Chute, Meghan E Sise
BACKGROUND: The opioid crisis has led to a dramatic increase in the number of drug overdose deaths in the United States. Little is known about the effect of the opioid crisis on the kidney transplant donor pool, particularly on hepatitis C virus (HCV)-infected donors. METHODS: This is a retrospective analysis of the data from the Organ Procurement and Transplantation Network from 2010 to 2016. We determined the changes in characteristics of kidney transplant donors and evaluated which changes may be directly related to the opioid crisis...
February 13, 2018: American Journal of Nephrology
Jay B Wish, George R Aronoff, Bruce R Bacon, Carlo Brugnara, Kai-Uwe Eckardt, Tomas Ganz, Iain C Macdougall, Julio Núñez, Adam J Perahia, John C Wood
BACKGROUND: Regulation of body iron occurs at cellular, tissue, and systemic levels. In healthy individuals, iron absorption and losses are minimal, creating a virtually closed system. In the setting of chronic kidney disease and hemodialysis (HD), increased iron losses, reduced iron absorption, and limited iron availability lead to iron deficiency. Intravenous (IV) iron therapy is frequently prescribed to replace lost iron, but determining an individual's iron balance and stores can be challenging and imprecise, contributing to uncertainty about the long-term safety of IV iron therapy...
February 13, 2018: American Journal of Nephrology
Manisha Singh, Deepa Raghavan, James S Williams, Bradley C Martin, Teresa J Hudson, Richard R Owen, Nishank Jain
BACKGROUND: Contemporary prevalence of chronic kidney disease (CKD) and thrombotic cardiovascular (CV) events remains unclear in Veterans enrolled in the Veterans Affairs Health Care System (VA) care. Although oral P2Y12 inhibitors (P2Y12i) are increasingly being prescribed to this patient population, the overall prescription trend for P2Y12i remains unclear. METHODS: Using national VA corporate warehouse data, we used International Classification of Diseases-9 codes to identify Veterans with CKD, dialysis-dependent CKD, and CV events...
February 1, 2018: American Journal of Nephrology
Keiichi Sumida, Shungo Yamamoto, Tadao Akizawa, Shunichi Fukuhara, Shingo Fukuma
BACKGROUND: Short-term weight gains and losses are associated with a lower and higher mortality risk, respectively, in patients undergoing hemodialysis (HD). However, little is known about their association with the risk of subsequent hospitalization. METHODS: In a prospective cohort of 1,804 HD patients aged ≥65 years enrolled in the Japanese Dialysis Outcomes and Practice Patterns Study phases 3 (2005-2008) and 4 (2009-2011), we examined the associations between changes in body mass index (BMI) over a 4-month baseline period (<-3%, -3 to <-1%, -1 to <1% [reference], 1 to <3%, and ≥3%) and subsequent risk of all-cause, cardiovascular, and noncardiovascular hospitalization using Cox models with adjustment for potential confounders...
January 24, 2018: American Journal of Nephrology
Tadashi Sofue, Yoshio Kushida, Taro Ozaki, Masahiro Moritoki, Yoko Nishijima, Hiroyuki Ohsaki, Nobufumi Ueda, Yoshiyuki Kakehi, Akira Nishiyama, Tetsuo Minamino
BACKGROUND: It is uncertain whether kidneys from marginal donors are suitable for live kidney transplantation. In deceased donor kidneys, tubular cell senescence affects allograft function. However, the degree of cell senescence in a living donor kidney with marginal factors has not been reported. In this study, we assessed the association of tubular cell senescence with allograft and remnant kidney function by a prospective observational clinical study. METHODS: Thirty-eight living donor kidney transplantations were analyzed prospectively...
December 22, 2017: American Journal of Nephrology
Jin Ho Hwang, Seung Hee Yang, Yong Chul Kim, Jin Hyuk Kim, Jung Nam An, Kyung Chul Moon, Yun Kyu Oh, Jae Yoon Park, Dong Ki Kim, Yon Su Kim, Chun Soo Lim, Jung Pyo Lee
BACKGROUND: Periostin is responsible for tissue regeneration, fibrosis, and wound healing via its interaction with integrin. Recently, the role of periostin has been shown to contribute to fibrosis in chronic kidney disease. We investigated the role of periostin and the effect of periostin blockade in renal fibrogenesis. METHODS: We investigated the function of periostin in vivo in wild-type and periostin-null mice (Postn-KO) in a unilateral ureteral obstruction (UUO) model...
December 21, 2017: American Journal of Nephrology
Giorgina B Piccoli, Mona Alrukhaimi, Zhi-Hong Liu, Elena Zakharova, Adeera Levin
Chronic kidney disease affects approximately 10% of the world's adult population: it is within the top 20 causes of death worldwide, and its impact on patients and their families can be devastating. World Kidney Day and International Women's Day in 2018 coincide, thus offering an opportunity to reflect on the importance of women's health and specifically their kidney health, on the community and the next generations, as well as to strive to be more curious about the unique aspects of kidney disease in women so that we may apply those learnings more broadly...
2018: American Journal of Nephrology
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