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bicarbonate renal

Nunzio Denora, Angela Lopedota, Modesto De Candia, Saverio Cellamare, Leonardo Degennaro, Renzo Luisi, Antonietta Mele, Domenico Tricarico, Annalisa Cutrignelli, Valentino Laquintana, Cosimo D Altomare, Massimo Franco, Vincenzo Dimiccoli, Anna Tolomeo, Antonio Scilimati
6-[(18)F]fluoro-l-dihydroxyphenylalanine ((18)F-DOPA) is a diagnostic positron emission tomography (PET) agent, which has been used for decades in imaging the loss of dopaminergic neurons in Parkinson's disease, and more recently to detect, stage and restage neuroendocrine tumors (NETs) and to search for recurrence of viable glioma tissue. The commercially available (18)F-DOPA PET radiopharmaceutical for diagnostic use in European Union countries, is formulated in an aqueous solution of acetic acid (1.05mg/mL) and has the disadvantages that, immediately before injection, the pH must be adjusted to 4...
October 4, 2016: European Journal of Pharmaceutical Sciences
S A Paul Chubb, Wendy A Davis, Kirsten E Peters, Timothy M E Davis
BACKGROUND: Serum bicarbonate is associated with mortality, heart failure (HF) and progression of renal failure in studies of healthy people and patients with chronic kidney disease, but the significance of these observations in unselected patients with diabetes in the general population is unknown. The aim of this study was to determine whether serum bicarbonate was associated with mortality and cardiovascular disease risk in type 2 diabetes. METHODS: Baseline serum bicarbonate was available for 1283 well-characterized community-based patients (mean ± SD age 64...
October 6, 2016: Cardiovascular Diabetology
Nina E Diana, Saraladevi Naicker
The prevalence of HIV-associated chronic kidney disease (CKD) varies geographically and depends on the definition of CKD used, ranging from 4.7% to 38% globally. The incidence, however, has decreased with the use of effective combined antiretroviral therapy (cART). A wide variety of histological patterns are seen in HIV-associated kidney diseases that include glomerular and tubulointerstitial pathology. In resource-rich settings, there has been a plateau in the incidence of end-stage renal disease secondary to HIV-associated nephropathy (HIVAN)...
2016: International Journal of Nephrology and Renovascular Disease
Robin A Felder, Pedro A Jose, Peng Xu, John J Gildea
The sodium bicarbonate cotransporter (NBCe2, aka NBC4) was originally isolated from the human testis and heart (Pushkin et al. IUBMB Life 50:13-19, 2000). Subsequently, NBCe2 was found in diverse locations where it plays a role in regulating sodium and bicarbonate transport, influencing intracellular, extracellular, interstitial, and ultimately plasma pH (Boron et al. J Exp Biol. 212:1697-1706, 2009; Parker and Boron, Physiol Rev. 93:803-959, 2013; Romero et al. Mol Asp Med. 34:159-182, 2013). NBCe2 is located in human and rodent renal-collecting duct and proximal tubule...
September 2016: Current Hypertension Reports
A A Adeneye, A S Benebo
Nephrotoxicity remains a common untoward effect of cisplatin therapy with limited effective chemopreventive options available till date. This study aims to evaluate the possible chemopreventive effect and mechanism(s) of action of 2 mgkg-1 and 5 mgkg-1 of Tadalafil in cisplatin-induced nephrotoxic rats. In this study, twenty-five male Wistar rats were randomly divided into five groups (n = 5 rats per group) and daily pretreated with oral doses of distilled water (10 mLkg-1), ascorbic acid (100 mgkg-1), Tadalafil (2 mgkg-1 and 5 mgkg-1) for 7 days before cisplatin (5 mgkg-1, intraperitoneal) was administered...
2016: Nigerian Journal of Physiological Sciences: Official Publication of the Physiological Society of Nigeria
Vincenzo Bellizzi, Giuseppe Conte, Silvio Borrelli, Adamasco Cupisti, Luca De Nicola, Biagio R Di Iorio, Gianfranca Cabiddu, Marcora Mandreoli, Ernesto Paoletti, Giorgina B Piccoli, Giuseppe Quintaliani, Maura Ravera, Domenico Santoro, Serena Torraca, Roberto Minutolo
This position paper of the study group "Conservative treatment of Chronic Kidney Disease-CKD" of the Italian Society of Nephrology addresses major practical, unresolved, issues related to the conservative treatment of chronic renal disease. Specifically, controversial topics from everyday clinical nephrology practice which cannot find a clear, definitive answer in the current literature or in nephrology guidelines are discussed. The paper reports the point of view of the study group. Concise and practical advice is given on several common issues: renal biopsy in diabetes; dual blockade of the renin-angiotensin-aldosterone system (RAAS); management of iron deficiency; low protein diet; dietary salt intake; bicarbonate supplementation; treatment of obesity; the choice of conservative therapy vs...
August 27, 2016: Journal of Nephrology
Adamasco Cupisti, Claudia D'Alessandro, Gian Marco Caselli
Nutritional abnormalities and physical inactivity are risk factors of increased morbidity and mortality in patients with ESRD. Identify and define malnutrition, in particular protein-energy depletion (PEW), is an important task in the management of renal patients. The aim of this multicenter observational study was to implement the assessment of nutritional status and functional capacity in patients on peritoneal dialysis, including tests and validated methods which are relatively easy to apply in daily clinical practice...
July 2016: Giornale Italiano di Nefrologia: Organo Ufficiale Della Società Italiana di Nefrologia
Douglas de Sousa Soares, Malena Gadelha Cavalcante, Samille Maria Vasconcelos Ribeiro, Rayana Café Leitão, Ana Patrícia Freitas Vieira, Roberto da Justa Pires Neto, Geraldo Bezerra da Silva Junior, Elizabeth de Francesco Daher
OBJECTIVE: To assess clinical and laboratory data, and acute kidney injury (AKI) in HIV-infected children using and not using highly active antiretroviral therapy (HAART) prior to admission. METHODS: A retrospective study was conducted with HIV-infected pediatric patients (<16 years). Children who were using and not using HAART prior to admission were compared. RESULTS: Sixty-three patients were included. Mean age was 5.3±4.27 years; 55...
August 16, 2016: Jornal de Pediatria
Sarah Manspeaker, Kelley Henderson, Dru Riddle
BACKGROUND: Exertional rhabdomyolysis (ER) is the breakdown of skeletal muscle tissue following intense physical activity that results in impairment of the cell membrane, which allows intracellular contents to be released into the bloodstream. Signs and symptoms include myalgia, myoglobinuria and increased creatine kinase (CK) levels. Athletes are vulnerable to this condition due to their increased level of physical activity. The severity and effects of this condition vary between individuals; however, all athletes are at risk of significant muscle damage, renal failure and perhaps death if not recognized and treated quickly...
June 2016: JBI Database of Systematic Reviews and Implementation Reports
Troels Juul, Fredrik Palm, Per Mose Nielsen, Lotte Bonde Bertelsen, Christoffer Laustsen
PURPOSE: It has been demonstrated that hyperpolarized (13) C MR is a useful tool to study cultured cells. However, cells in culture can alter phenotype, which raises concerns regarding the in vivo significance of such findings. Here we investigate if metabolic phenotyping using hyperpolarized (13) C MR is suitable for cells isolated from kidney tissue, without prior cell culture. METHODS: Isolation of tubular cells from freshly excised kidney tissue and treatment with either ouabain or antimycin A was investigated with hyperpolarized MR spectroscopy on a 9...
August 16, 2016: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
Jianjun Gao, Zhaoyan Gu, Yongxing Xu, Yu Na
We report a case of metformin-associated lactic acidosis (MALA) in a 66-year-old man with end-stage renal disease on peritoneal dialysis (PD). The patient presented with severe lactic acidosis and was treated successfully with automated peritoneal dialysis (APD). During the treatment, PD solution was prepared from hemofiltration substitute fluid. The prescription was 8 cycles of 2,000 mL over 24 hours with the prepared solution, and venoclysis with sodium bicarbonate to improve the acidosis. After 3 days of treatment, his lactic acidosis was corrected...
November 2016: Clinical Nephrology
Mayoor V Prabhu, Arun S, Venkat Ramesh
INTRODUCTION: In the tropics, the triad of fever, thrombocytopenia, and AKI portends a grim prognosis with high mortality and a severe strain on already-stretched resources. Malaria, dengue, and leptospirosis account for most cases. We undertook a review of cases to determine factors accounting for adverse prognosis. METHODS: All patients presenting to the emergency room (ER) with a history of fever, thrombocytopenia, and renal failure were included in the study...
August 10, 2016: Clinical Nephrology
Jozine M Ter Maaten, Kevin Damman, Jennifer S Hanberg, Michael M Givertz, Marco Metra, Christopher M O'Connor, John R Teerlink, Piotr Ponikowski, Gad Cotter, Beth Davison, John G Cleland, Daniel M Bloomfield, Hans L Hillege, Dirk J van Veldhuisen, Adriaan A Voors, Jeffrey M Testani
BACKGROUND: Chloride plays a role in renal salt sensing, neurohormonal activation, and regulation of diuretic targets, and hypochloremia predicts mortality in acute heart failure (AHF). AHF therapies, such as diuretics, alter chloride homeostasis. We studied the association between (changes in) chloride levels and diuretic responsiveness, decongestion, and mortality in patients with AHF. METHODS AND RESULTS: Patients hospitalized for AHF in the PROTECT trial (n=2033) with serum chloride levels within 24 hours of admission and 14 days later were studied (n=1960)...
August 2016: Circulation. Heart Failure
Wenjun Yan, Lijuan Wang, Tianlun Huang, Gaosi Xu
AIM: Non-thyroidal illness syndrome (NTIS) is common among patients with advanced chronic kidney disease (CKD) and is strongly associated with poor prognosis. However, it remains unclear in how to correct this disorder and this study aimed to evaluate the effectiveness of sodium bicarbonate (SB) and N-acetyl-cysteine (NAC) for correcting NTIS status. METHODS: Patients with CKD stage 3-4 were single-blind, placebo-controlled treated with placebo, SB, or NAC for 18 weeks...
August 2, 2016: Journal of Nephrology
Florence Wong, Stephen Chris Pappas, Thomas D Boyer, Arun J Sanyal, Jasmohan S Bajaj, Shannon Escalante, Khurram Jamil
BACKGROUND & AIMS: Patients with systemic inflammatory response syndrome (SIRS) along with decompensated cirrhosis and renal dysfunction have a poor prognosis and a lower response to treatment. We evaluated the effect of SIRS on the response of hepatorenal syndrome type 1 (HRS-1) to terlipressin. METHODS: We performed a retrospective study of data from a trial of the effects of terlipressin (1 mg every 6 hours or placebo with concomitant albumin) in 198 patients with HRS-1, performed at 50 investigational sites in the United States and 2 in Canada from October 2010 through February 2013...
July 25, 2016: Clinical Gastroenterology and Hepatology
A Tahir, K McLaughlin, G Kline
BACKGROUND: As the field of Primary Aldosteronism (PA) becomes ever expanded, diagnosis of PA is increasingly diagnosed by endocrinologists. With increased PA screening, many of the cases are now found in patients with complex co-morbidities in addition to their hypertension. Post adrenalectomy renal impairment with hyperkalemia is now increasingly seen in these complex patients, as evidenced by the numerous reports on this issue that have appeared within the past 3 years. We present a small case series to illustrate the breadth of the problem, along with a discussion about how such CKD/hyperkalemic events may be predicted...
2016: BMC Endocrine Disorders
Patricia Dreyer, Monique Nakayama Ohe, Livia Marcela Dos Santos, Ilda Sizue Kunii, Rodrigo Oliveira Santos, Aluizio Barbosa de Carvalho, Jose Gilberto Henriques Vieira
INTRODUCTION: Hyperparathyroidism is a frequent complication of chronic kidney disease (CKD). Total parathyroidectomy (PTX) with parathyroid tissue autotransplantation (AT) is a treatment option in those individuals that do not respond to clinical management. OBJECTIVE: To evaluate grafted parathyroid tissue response during induced hypocalcemia among CKD patients who underwent total PTX with AT. METHODS: Eighteen patients with renal hyperparathyroidism were submitted to total PTX with parathyroid AT selected by stereomicroscopy between April and October 2008...
June 2016: Jornal Brasileiro de Nefrologia: ʹorgão Oficial de Sociedades Brasileira e Latino-Americana de Nefrologia
Caryn Hampton, Xiaoyan Zhou, Birgit T Priest, Lee-Yuh Pai, John P Felix, Brande Thomas-Fowlkes, Jessica Liu, Martin Kohler, Jianying Xiao, Aaron Corona, Olga Price, Charles Gill, Kashmira Shah, Cordelia Rasa, Vince Tong, Karen Owens, James Ormes, Haifeng Tang, Sophie Roy, Kathleen A Sullivan, Joseph M Metzger, Magdalena Alonso-Galicia, Gregory J Kaczorowski, Alexander Pasternak, Maria L Garcia
The renal outer medullary potassium (ROMK) channel, located at the apical surface of epithelial cells in the thick ascending loop of Henle and cortical collecting duct, contributes to salt reabsorption and potassium secretion, and represents a target for the development of new mechanism of action diuretics. This idea is supported by the phenotype of antenatal Bartter's syndrome type II associated with loss-of-function mutations in the human ROMK channel, as well as, by cardiovascular studies of heterozygous carriers of channel mutations associated with type II Bartter's syndrome...
October 2016: Journal of Pharmacology and Experimental Therapeutics
Syed Ahsan Ali, Muhammad Tariq
Proximal renal tubular acidosis (RTA), also known as Type II RTA, is characterized by a defect in the ability to reabsorb bicarbonate (HCO 3 ) in the proximal tubule. It is usually associated with generalized dysfunction of the proximal tubule as part of Fanconi syndrome. Very few case reports in the literature support Vitamin D deficiency as a cause of proximal RTA. We present a case of a young female who presented with proximal RTA and Fanconi syndrome and excellently responded to Vitamin D replacement. Thus, work-up for the etiology of proximal RTA should include Vitamin D levels since replacement of this vitamin in those who are deficient can lead to cure of such patients...
July 2016: Saudi Journal of Kidney Diseases and Transplantation
Suleyman Turedi, Erkan Erdem, Yunus Karaca, Ozgur Tatli, Aynur Sahin, Suha Turkmen, Abdulkadir Gunduz
STUDY OBJECTIVE: To compare the protective effects of N-acetylcysteine (NAC) plus normal saline (NS), sodium bicarbonate (NaHCO3) plus NS and NS alone in the prevention of contrast-induced nephropathy (CIN) after computed tomography pulmonary angiography (CTPA) in emergency patients. MATERIALS AND METHODS: This study was planned as a randomized, controlled clinical research. Patients undergoing contrast-enhanced CTPA on suspicion of pulmonary embolism (PE) in the emergency department and with at least one risk factor for development of CIN were included in one of three different prophylaxis groups...
July 14, 2016: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
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