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UROLOGY, NEPHROLOGY AND ANDROLOGY (151 journals)                     

Showing 1 - 144 of 144 Journals sorted alphabetically
Actas Urológicas Españolas     Full-text available via subscription   (Followers: 1)
Actas Urológicas Españolas (English Edition)     Full-text available via subscription   (Followers: 1)
Advances in Chronic Kidney Disease     Hybrid Journal   (Followers: 15)
Advances in Urology     Open Access   (Followers: 13)
African Journal of Nephrology     Open Access   (Followers: 1)
African Journal of Urology     Open Access   (Followers: 7)
AJP Renal Physiology     Hybrid Journal   (Followers: 8)
Aktuelle Urologie     Hybrid Journal   (Followers: 4)
American Journal of Kidney Diseases     Hybrid Journal   (Followers: 54)
American Journal of Men's Health     Open Access   (Followers: 9)
American Journal of Nephrology     Full-text available via subscription   (Followers: 31)
Andrologia     Hybrid Journal   (Followers: 3)
Andrology     Hybrid Journal   (Followers: 5)
Andrology & Gynecology : Current Research     Hybrid Journal   (Followers: 4)
Andrology and Genital Surgery     Open Access   (Followers: 8)
Arab Journal of Nephrology and Transplantation     Open Access   (Followers: 2)
Arab Journal of Urology     Open Access   (Followers: 7)
Archives of Clinical Nephrology     Open Access   (Followers: 2)
Archivio Italiano di Urologia e Andrologia     Open Access   (Followers: 1)
Archivos Españoles de Urología     Open Access   (Followers: 1)
Asian Journal of Andrology     Open Access   (Followers: 1)
Asian Journal of Urology     Open Access   (Followers: 3)
Asian Pediatric Nephrology Association     Open Access   (Followers: 3)
Bangladesh Journal of Urology     Open Access   (Followers: 5)
Basic and Clinical Andrology     Open Access  
BJU International     Hybrid Journal   (Followers: 19)
BJUI Compass     Open Access   (Followers: 1)
BMC Nephrology     Open Access   (Followers: 9)
BMC Urology     Open Access   (Followers: 14)
Canadian Journal of Kidney Health and Disease     Open Access   (Followers: 7)
Canadian Urological Association Journal     Open Access   (Followers: 1)
Cancer Urology     Open Access   (Followers: 1)
Cardiorenal Medicine     Full-text available via subscription   (Followers: 1)
Case Reports in Nephrology     Open Access   (Followers: 6)
Case Reports in Nephrology and Dialysis     Open Access   (Followers: 8)
Case Reports in Urology     Open Access   (Followers: 11)
Clinical and Experimental Nephrology     Hybrid Journal   (Followers: 5)
Clinical Journal of the American Society of Nephrology     Full-text available via subscription   (Followers: 25)
Clinical Kidney Journal     Open Access   (Followers: 5)
Clinical Medicine Insights : Urology     Open Access   (Followers: 3)
Clinical Nephrology     Full-text available via subscription   (Followers: 8)
Cuadernos de Cirugía     Open Access  
Current Opinion in Nephrology & Hypertension     Hybrid Journal   (Followers: 12)
Current Opinion in Urology     Hybrid Journal   (Followers: 11)
Current Urology     Open Access   (Followers: 10)
Current Urology Reports     Hybrid Journal   (Followers: 5)
Der Nephrologe     Hybrid Journal  
Der Urologe     Hybrid Journal   (Followers: 1)
Diabetic Nephropathy     Open Access  
EMC - Urología     Full-text available via subscription  
Enfermería Nefrológica     Open Access   (Followers: 1)
European Urology     Hybrid Journal   (Followers: 24)
European Urology Focus     Hybrid Journal   (Followers: 4)
European Urology Oncology     Hybrid Journal   (Followers: 1)
European Urology Open Science     Open Access   (Followers: 8)
Forum Nefrologiczne     Full-text available via subscription  
Geriatric Nephrology and Urology     Hybrid Journal   (Followers: 7)
Giornale di Clinica Nefrologica e Dialisi     Open Access  
Hellenic Urology     Open Access   (Followers: 3)
IJU Case Reports     Open Access  
Indian Journal of Nephrology     Open Access   (Followers: 2)
Indian Journal of Urology     Open Access   (Followers: 5)
International Brazilian Journal of Urology     Open Access   (Followers: 5)
International Journal of Nephrology     Open Access   (Followers: 2)
International Journal of Nephrology and Renovascular Disease     Open Access   (Followers: 2)
International Journal of Urology     Hybrid Journal   (Followers: 10)
International Urology and Nephrology     Hybrid Journal   (Followers: 6)
Journal für Urologie und Urogynäkologie/Österreich     Hybrid Journal  
Journal of Clinical Nephrology     Open Access   (Followers: 1)
Journal of Clinical Urology     Hybrid Journal   (Followers: 12)
Journal of Endoluminal Endourology     Open Access  
Journal of Endourology     Hybrid Journal   (Followers: 2)
Journal of Endourology Case Reports     Hybrid Journal  
Journal of Genital System & Disorders     Hybrid Journal   (Followers: 1)
Journal of Integrative Nephrology and Andrology     Open Access   (Followers: 2)
Journal of Kidney Cancer and VHL     Open Access  
Journal of Lower Genital Tract Disease     Hybrid Journal  
Journal of Nephrology     Hybrid Journal   (Followers: 5)
Journal of Nephrology Research     Open Access   (Followers: 2)
Journal of Pediatric Nephrology     Open Access   (Followers: 3)
Journal of Renal Care     Hybrid Journal   (Followers: 8)
Journal of Renal Nursing     Full-text available via subscription   (Followers: 8)
Journal of Renal Nutrition     Hybrid Journal   (Followers: 28)
Journal of Renal Nutrition and Metabolism     Open Access   (Followers: 2)
Journal of the American Society of Nephrology     Full-text available via subscription   (Followers: 39)
Journal of The Egyptian Society of Nephrology and Transplantation     Open Access  
Journal of Urology & Nephrology     Open Access  
Kidney Diseases     Open Access   (Followers: 3)
Kidney International     Hybrid Journal   (Followers: 53)
Kidney International Reports     Open Access   (Followers: 6)
Kidney Medicine     Open Access   (Followers: 1)
Kidney Research Journal     Open Access   (Followers: 6)
Kidneys (Počki)     Open Access  
Nature Reviews Nephrology     Full-text available via subscription   (Followers: 30)
Nature Reviews Urology     Full-text available via subscription   (Followers: 10)
Nefrología     Open Access  
Nefrología (English Edition)     Open Access  
Nephro-Urology Monthly     Open Access   (Followers: 1)
Nephrology     Hybrid Journal   (Followers: 13)
Nephrology Dialysis Transplantation     Hybrid Journal   (Followers: 27)
Nephron     Hybrid Journal   (Followers: 3)
Nephron Clinical Practice     Full-text available via subscription   (Followers: 3)
Nephron Experimental Nephrology     Full-text available via subscription   (Followers: 4)
Nephron Extra     Open Access   (Followers: 1)
Nephron Physiology     Full-text available via subscription   (Followers: 4)
Neurourology and Urodynamics     Hybrid Journal   (Followers: 1)
OA Nephrology     Open Access   (Followers: 2)
Open Access Journal of Urology     Open Access   (Followers: 6)
Open Journal of Nephrology     Open Access   (Followers: 4)
Open Journal of Urology     Open Access   (Followers: 6)
Open Urology & Nephrology Journal     Open Access  
Paediatric Nephrology Journal of Bangladesh     Open Access   (Followers: 4)
Portuguese Journal of Nephrology & Hypertension     Open Access   (Followers: 1)
Progrès en Urologie     Full-text available via subscription  
Progrès en Urologie - FMC     Full-text available via subscription  
Prostate Cancer and Prostatic Diseases     Hybrid Journal   (Followers: 4)
Renal Failure     Open Access   (Followers: 11)
Renal Replacement Therapy     Open Access   (Followers: 3)
Research and Reports in Urology     Open Access   (Followers: 4)
Revista de Nefrología, Diálisis y Trasplante     Open Access   (Followers: 1)
Revista Mexicana de Urología     Open Access  
Revista Urologia Colombiana     Open Access  
Scandinavian Journal of Urology     Hybrid Journal   (Followers: 6)
Seminars in Nephrology     Hybrid Journal   (Followers: 11)
The Prostate     Hybrid Journal   (Followers: 6)
Therapeutic Advances in Urology     Open Access   (Followers: 3)
Translational Research in Urology     Open Access   (Followers: 1)
Trends in Urology & Men's Health     Partially Free   (Followers: 1)
Urine     Open Access  
Uro-News     Hybrid Journal  
Urolithiasis     Hybrid Journal   (Followers: 1)
Urologia Internationalis     Full-text available via subscription   (Followers: 1)
Urologia Journal     Hybrid Journal  
Urologic Clinics of North America     Full-text available via subscription   (Followers: 3)
Urologic Nursing     Full-text available via subscription   (Followers: 3)
Urological Science     Open Access  
Urologicheskie Vedomosti     Open Access  
Urologie in der Praxis     Hybrid Journal  
Urology     Hybrid Journal   (Followers: 26)
Urology Case Reports     Open Access   (Followers: 3)
Urology Times     Free   (Followers: 3)
Urology Video Journal     Open Access  
World Journal of Nephrology and Urology     Open Access   (Followers: 5)
World Journal of Urology     Hybrid Journal   (Followers: 10)

           

Similar Journals
Journal Cover
Current Opinion in Nephrology & Hypertension
Journal Prestige (SJR): 1.513
Citation Impact (citeScore): 3
Number of Followers: 12  
 
  Hybrid Journal Hybrid journal (It can contain Open Access articles)
ISSN (Print) 1062-4821 - ISSN (Online) 1473-6543
Published by LWW Wolters Kluwer Homepage  [297 journals]
  • Editorial introductions

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      Abstract: imageNo abstract available
      PubDate: Thu, 01 Sep 2022 00:00:00 GMT-
       
  • Editorial: Advancements in the management of kidney disease and
           electrolyte derangements

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      Authors: Holliday; Michael W. Jr.; Navaneethan, Sankar D.
      Abstract: No abstract available
      PubDate: Thu, 01 Sep 2022 00:00:00 GMT-
       
  • Hypoxia-inducible factor prolyl hydroxylase enzyme inhibitors: ready for
           primetime'

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      Authors: Macdougall; Iain C.
      Abstract: imagePurpose of review Hypoxia-inducible factor (HIF) prolyl hydroxylase inhibitors have recently been developed as a new treatment for anemia associated with chronic kidney disease (CKD). Several of these have been approved in Europe (roxadustat), China, and Japan, but none approved in the United States to date, although daprodustat has been submitted as a new drug application to the Food and Drug Administration. The aim of this review is to critically appraise the available data, particularly the most recent publications, and offer a personal viewpoint on whether or not these drugs are ready for primetime.Recent findings The efficacy of HIF prolyl hydroxylase inhibitors in improving CKD anemia and maintaining a higher hemoglobin is undisputed, but there remain some concerns about safety, particularly in the long term. Some of the safety concerns may result from an exaggerated pharmacological response, while other potential adverse effects could be due to transcriptional effects of these agents beyond genes involved in erythropoiesis.Summary HIF prolyl hydroxylase inhibitors are already being used in clinical practice in several countries of the world, and ongoing research is being conducted to define the role of these drugs not only in the management of anemia but also beyond into other clinical settings.
      PubDate: Thu, 01 Sep 2022 00:00:00 GMT-
       
  • Revisiting diuretic choice in chronic kidney disease

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      Authors: Ali; Sehrish; Navaneethan, Sankar D.; Virani, Salim S.; Gregg, L. Parker
      Abstract: imagePurpose of review Existing guidelines offer little direction about the use of thiazide and loop diuretics in patients with chronic kidney disease (CKD). This review summarizes recent studies impacting indications and safety considerations for these agents in patients with CKD.Recent findings Chlorthalidone reduces blood pressure compared to placebo in patients with advanced CKD, challenging the belief that thiazide diuretics lose efficacy at lower glomerular filtration rates (GFR). Existing studies show no clear impact of thiazide or loop diuretic use on kidney or cardiovascular outcomes in patients with CKD. Sodium-glucose co-transporter type 2 (SGLT2) inhibitors have diuretic effects, but concomitant use of a diuretic does not diminish the preventive benefits of these agents against acute kidney injury (AKI). Despite theoretical concerns, thiazide diuretics likely do not worsen circulating vasopressin levels or cyst progression in polycystic kidney disease and may be useful for alleviating polyuria from tolvaptan. Diuretics cause multiple adverse effects, including electrolyte abnormalities, hemodynamic-mediated decrease in estimated GFR, and AKI.Summary Recent evidence supports expanded indications for diuretics in patients with kidney disease, including chlorthalidone for hypertension in advanced CKD. Monitoring electrolytes and estimated GFR is critical to ensure patient safety when prescribing these agents for patients with CKD.
      PubDate: Thu, 01 Sep 2022 00:00:00 GMT-
       
  • Fluid administration strategies for the prevention of contrast-associated
           acute kidney injury

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      Authors: Rudnick; Michael R.; Fay, Kevin; Wahba, Ihab M.
      Abstract: imagePurpose of review The known timing of contrast media exposure in patients identified as high-risk for contrast-associated acute kidney injury (CA-AKI) enables the use of strategies to prevent this complication of intravascular contrast media exposure. Although multiple preventive strategies have been proposed, periprocedural fluid administration remains as the primary preventive strategy. This is a critical review of the current evidence evaluating a variety of fluid administration strategies in CA-AKI.Recent findings Fluid administration strategies to prevent CA-AKI include comparisons of intravenous (i.v.) to no fluid administration, different fluid solutions, duration of fluid administration, oral hydration, left ventricular end diastolic-pressure guided fluid administration and forced diuresis techniques.Summary Despite an abundance of fluid administration trials, it is difficult to make definitive recommendations about preventive fluid administration strategies due to low scientific quality of published studies. The literature supports use of i.v. compared with no fluid administration, especially in high-risk patients undergoing intra-arterial contrast media exposure. Use of isotonic saline is recommended over 0.45% saline or isotonic sodium bicarbonate. Logistical considerations support shortened over longer i.v. fluid administration strategies, despite an absence of evidence of equivalent efficacy. Current literature does not support oral hydration for high-risk patients. The use of tailored fluid administration in heart failure patients and forced diuresis with matching fluid administration are promising new fluid administration strategies.
      PubDate: Thu, 01 Sep 2022 00:00:00 GMT-
       
  • Electrolytes disturbances in cancer patients

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      Authors: Turcotte; Anna; Achi, Sai; Mamlouk, Omar; Mandayam, Sreedhar
      Abstract: imagePurpose of review Hypernatremia, hyperphosphatemia, hypocalcaemia, hyperkalaemia and hypermagnesemia are electrolytes disturbances that can arise in cancer patients in relation to unique causes that are related to the cancer itself or its treatment and can lead to delay or interruption of cancer therapy. This article summarizes these main causes, the proposed pathophysiology and the recommended management for these disturbances.Recent findings There have been many cancer drugs approved in the field of oncology over the past several years and a subset of these drugs have been associated with electrolytes disturbances. This includes, for example, immune checkpoint inhibitor related hyperkalemia, fibroblast growth factor 23 inhibitor associated hyperphosphatemia and epidermal growth factor receptor inhibitor associated hypomagnesemia and hypocalcaemia.Summary This article provides an updated review of certain electrolytes disturbance in cancer patients and allows clinicians to have a greater awareness and knowledge of these electrolyte abnormalities in efforts to early recognition and timely management.
      PubDate: Thu, 01 Sep 2022 00:00:00 GMT-
       
  • Pruritus in chronic kidney disease

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      Authors: Uppal; Nupur N.; Corona, Antonio; Fishbane, Steven
      Abstract: imagePurpose of review Among the many difficult symptoms that patients with kidney disease experience, pruritus is one of the most frequent and troubling. Because a substantial amount of new information has accumulated, we seek here to review the subject.Recent findings Pruritus is not only a common problematic symptom among patients with kidney disease, but its considerably more frequent than nephrologists recognize. The result for patients is not just uncomfortable itch but degraded quality of life as well. The pathogenesis is increasingly understood, but many aspects remain to be fully resolved. Importantly, research is progressing on treatment, leading to the first approved medication in the United States, difelikefalin, in August, 2021.Summary As nephrology is progressing to a greater focus on patient symptoms, recognition of the importance of pruritus has led to increased interest and improved diagnosis and treatment options.
      PubDate: Thu, 01 Sep 2022 00:00:00 GMT-
       
  • Treatment potential in APOL1-associated nephropathy

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      Authors: Friedman; David J.; Ma, Lijun; Freedman, Barry I.
      Abstract: imagePurpose of review More than 5 million African–Americans, and millions more in Africa and worldwide, possess apolipoprotein L1 gene (APOL1) high-risk genotypes with an increased risk for chronic kidney disease. This manuscript reviews treatment approaches for slowing the progression of APOL1-associated nephropathy.Recent findings Since the 2010 discovery of APOL1 as a cause of nondiabetic nephropathy in individuals with sub-Saharan African ancestry, it has become apparent that aggressive hypertension control, renin-angiotensin system blockade, steroids and conventional immunosuppressive agents are suboptimal treatments. In contrast, APOL1-mediated collapsing glomerulopathy due to interferon treatment and HIV infection, respectively, often resolve with cessation of interferon or antiretroviral therapy. Targeted therapies, including APOL1 small molecule inhibitors, APOL1 antisense oligonucleotides (ASO) and inhibitors of APOL1-associated inflammatory pathways, hold promise for these diseases. Evolving therapies and the need for clinical trials support the importance of increased use of APOL1 genotyping and kidney biopsy.Summary APOL1-associated nephropathy includes a group of related phenotypes that are driven by the same two genetic variants in APOL1. Clinical trials of small molecule inhibitors, ASO, and inflammatory pathway inhibitors may improve outcomes in patients with primary forms of APOL1-associated nephropathy.
      PubDate: Thu, 01 Sep 2022 00:00:00 GMT-
       
  • Immune checkpoint inhibitors and kidney disease

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      Authors: Wang; Qiyu; Moledina, Dennis G.; Sise, Meghan E.
      Abstract: imagePurpose of review Immune checkpoint inhibitors (ICIs) have changed the landscape of cancer treatment. However, use of ICIs can be limited by inflammatory toxicities referred to as immune-related adverse events (irAEs). ICI-associated acute kidney injury (ICI-associated AKI) affects 3–5% of ICI users.Recent findings With the rapidly growing indication of ICI, knowledge of ICI-associated kidney toxicity has also expanded from case series to large multicentre cohort studies. In this review, we discuss the clinical features, risk factors, clinicopathological correlations and prognosis of ICI-associated AKI from the most recent rigorously conducted retrospective cohort studies. We also discuss recent advances in diagnostic biomarker investigation, treatment and the unique challenge faced in the kidney transplant population.Summary With more comprehensive understanding of the clinical features and risk factors, ICI-associated AKI is commonly diagnosed clinically, especially given the inherent challenges performing a kidney biopsy in the cancer population; however, this highlights the urgent need for improved noninvasive diagnostic biomarkers to aid diagnosis and prognosis. Prospective studies are needed to better define the optimal treatment of ICI-associated AKI and to minimize the risk of graft loss in patients with kidney transplant who require ICIs.
      PubDate: Thu, 01 Sep 2022 00:00:00 GMT-
       
  • Progress in the management of patients with diabetes and chronic kidney
           disease

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      Authors: Pozo Garcia; Leonardo; Thomas, Sandhya S.; Rajesh, Harsith; Navaneethan, Sankar D.
      Abstract: imagePurpose of review Diabetic kidney disease is the most common cause of chronic kidney disease (CKD) and end-stage kidney disease in the world. Risk factor modification, glucose control, and renin–angiotensin–aldosterone system blockade have remained the standard of care for 2 decades. New therapeutic agents have emerged in recent years, demonstrating kidney and cardiovascular benefits, and herein we review recent clinical trials on this topic.Recent findings After the publication of several cardiovascular outcome trials for sodium–glucose cotransporter 2 inhibitors (SGLT-2i), new trials have focused ON primary kidney-specific outcomes demonstrating safety and benefits among patients with proteinuric CKD; patients with or without diabetes, and heart failure with preserved ejection fraction (HFpEF) respectively. Similarly, nonsteroidal mineralocorticoid receptor antagonists (ns-MRAs) and glucagon-like-peptide 1 receptor agonists (GLP-1 RAs) have improved cardiovascular and kidney outcomes. Recently, clinical practice guidelines have also been updated to reflect this new evidence.Summary In summary, SGLT-2i, GLP-1 RAs, and ns-MRAs have demonstrated cardiovascular and kidney benefits, including all-cause and cardiovascular mortality, progression to end-stage kidney disease, and hospitalizations for heart failure exacerbation among diverse patient population.
      PubDate: Thu, 01 Sep 2022 00:00:00 GMT-
       
  • Urinary extracellular vesicles: does cargo reflect tissue'

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      Authors: van Heugten; Martijn H.; Hoorn, Ewout J.; Fenton, Robert A.
      Abstract: imagePurpose of review To review recent developments in urinary extracellular vesicles (uEVs) to study kidney physiology and disease.Recent findings Proteomic analysis in rats showed significant correlations between kidney and uEV protein abundances. Consistent with uEV biogenesis, these correlations were stronger for membrane-associated proteins than for e.g. soluble kinases or E3 ubiquitin ligases. When challenged with a high potassium diet, the physiologically predicted protein changes occurred both in kidney and uEVs, suggesting that analysis of uEVs might be utilized as a proxy or even replacement for tissue analysis. Although kidney–uEV correlations are more difficult to obtain in humans, analysis of uEV cargo from patients with inherited tubulopathies or with primary aldosteronism were also consistent with the predicted changes at the tissue level. The kidney appears to be the main source of uEVs, with a recent study showing that nephron mass determines uEV excretion rate. Therefore, a measure of nephron mass should be included for between-subject comparisons.Summary The overall good correlation between kidney and uEV protein abundances renders uEVs an attractive noninvasive source of biomarkers for studying kidney physiology or disease. However, differences in per-protein kidney–uEV correlations and per-person uEV excretion rates should be considered in uEV biomarker studies.
      PubDate: Thu, 01 Sep 2022 00:00:00 GMT-
       
  • WNK1 in the kidney

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      Authors: Bahena-Lopez; Jessica Paola; Gamba, Gerardo; Castañeda-Bueno, María
      Abstract: imagePurpose of review The aim of this manuscript was to review recent evidence uncovering the roles of the With No lysine (K) kinase 1 (WNK1) in the kidney.Recent findings Analyses of microdissected mouse nephron segments have revealed the abundance of long-WNK1 and kidney-specific-WNK1 transcripts in different segments. The low levels of L-WNK1 transcripts in the distal convoluted tubule (DCT) stand out and support functional evidence on the lack of L-WNK1 activity in this segment. The recent description of familial hyperkalaemic hypertension (FHHt)-causative mutations affecting the acidic domain of WNK1 supports the notion that KS-WNK1 activates the Na+:Cl- cotransporter NCC. The high sensitivity of KS-WNK1 to KLHL3-targeted degradation and the low levels of L-WNK1 in the DCT, led to propose that this type of FHHt is mainly due to increased KS-WNK1 protein in the DCT. The observation that KS-WNK1 renal protein expression is induced by low K+ diet and recent reassessment of the phenotype of KS-WNK1-/- mice suggested that KS-WNK1 may be necessary to achieve maximal NCC activation under this condition. Evidences on the regulation of other renal transport proteins by WNK1 are also summarized.Summary The diversity of WNK1 transcripts in the kidney has complicated the interpretation of experimental data. Integration of experimental data with the knowledge of isoform abundance in renal cell types is necessary in future studies about WNK1 function in the kidney.
      PubDate: Thu, 01 Sep 2022 00:00:00 GMT-
       
  • Role of inwardly rectifying K+ channel 5.1 (Kir5.1) in the regulation of
           renal membrane transport

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      Authors: Lin; Dao-Hong; Duan, Xin-Peng; Zheng, Jun-Ya; Wang, Wen-Hui
      Abstract: imagePurpose of review Kir5.1 interacts with Kir4.2 in proximal tubule and with Kir4.1 in distal convoluted tubule (DCT), connecting tubule (CNT) and cortical collecting duct (CCD) to form basolateral-K+-channels. Kir4.2/Kir5.1 and Kir4.1/Kir5.1 play an important role in regulating Na+/HCO3--transport of the proximal tubule and Na+/K+ -transport in the DCT/CNT/CCD. The main focus of this review is to provide an overview of the recent development in the field regarding the role of Kir5.1 regulating renal electrolyte transport in the proximal tubule and DCT.Recent findings Loss-of-function-mutations of KCNJ16 cause a new form of tubulopathy, characterized by hypokalaemia, Na+-wasting, acid-base-imbalance and metabolic-acidosis. Abnormal bicarbonate transport induced by loss-of-function of KCNJ16-mutants is recapitulated in Kir4.2-knockout-(Kir4.2 KO) mice. Deletion of Kir5.1 also abolishes the effect of dietary Na+ and K+-intakes on the basolateral membrane voltage and NCC expression/activity. Long-term high-salt intake or high-K+-intake causes hyperkalaemic in Kir5.1-deficient mice.Summary Kir4.2/Kir5.1 activity in the proximal tubule plays a key role in regulating Na+, K+ and bicarbonate-transport through regulating electrogenic-Na+-bicarbonate-cotransporter-(NBCe1) and type 3-Na+/H+-exchanger-(NHE3). Kir4.1/Kir5.1 activity of the DCT plays a critical role in mediating the effect of dietary-K+ and Na+-intakes on NCC activity/expression. As NCC determines the Na+ delivery rate to the aldosterone-sensitive distal nephron (ASDN), defective regulation of NCC during high-salt and high-K+ compromises renal K+ excretion and K+ homeostasis.
      PubDate: Thu, 01 Sep 2022 00:00:00 GMT-
       
  • Sodium phosphate cotransporter 2a inhibitors: potential therapeutic uses

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      Authors: Xue; Jianxiang; Thomas, Linto; Dominguez Rieg, Jessica A.; Rieg, Timo
      Abstract: imagePurpose of review Targeting sodium phosphate cotransporter 2a (Npt2a) offers a novel strategy for treating hyperphosphatemia in chronic kidney disease (CKD). Here we review recent studies on the efficacy of Npt2a inhibition, its plasma phosphate (Pi)-lowering effects, as well as potential “off-target” beneficial effects on cardiovascular consequences.Recent findings Two novel Npt2a-selective inhibitors (PF-06869206 and BAY-767) have been developed. Pharmacological Npt2a inhibition shows a significant phosphaturic effect and consequently lowers plasma Pi and parathyroid hormone (PTH) levels regardless of CKD. However, plasma fibroblast growth factor 23 (FGF23), a master regulator of Pi homeostasis, shows inconsistent responses between these two inhibitors (no effect by PF-06869206 vs. reduction by BAY-767). In addition to the effects on Pi homeostasis, Npt2a inhibition also enhances urinary excretions of Na+, Cl−, and Ca2+, which is recapitulated in animal models with reduced kidney function. The effect of Npt2a inhibition by BAY-767 on vascular calcification has been studied, with positive results showing that oral treatment with BAY-767 (10 mg kg−1) attenuated the increases in plasma Pi and Ca2+ content in the aorta under the setting of vascular calcification induced by a pan-FGF receptor inhibitor. Together, Npt2a inhibition offers a promising therapeutic approach for treating hyperphosphatemia and reducing cardiovascular complications in CKD.Summary Npt2a inhibition significantly increases urinary Pi excretion and lowers plasma Pi and PTH levels; moreover, it exerts pleiotropic “off-target” effects, providing a novel treatment for hyperphosphatemia and exhibiting beneficial potential for cardiovascular complications in CKD.
      PubDate: Thu, 01 Sep 2022 00:00:00 GMT-
       
  • Lessons learned about epithelial sodium channels from transgenic mouse
           models

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      Authors: Ehret; Elodie; Hummler, Edith
      Abstract: imagePurpose of review This review provides an up-to-date understanding about the regulation of epithelial sodium channel (ENaC) expression and function. In particular, we will focus on its implication in renal Na+ and K+ handling and control of blood pressure using transgenic animal models.Recent findings In kidney, the highly amiloride-sensitive ENaC maintains whole body Na+ homeostasis by modulating Na+ transport via epithelia. This classical role is mostly confirmed using genetically engineered animal models. Recently identified key signaling pathways that regulate ENaC expression and function unveiled some nonclassical and unexpected channel regulatory processes. If aberrant, these dysregulated mechanisms may also result in the development of salt-dependent hypertension.The purpose of this review is to highlight the most recent findings in renal ENaC regulation and function, in considering data obtained from animal models.Summary Increased ENaC-mediated Na+ transport is a prerequisite for salt-dependent forms of hypertension. To treat salt-sensitive hypertension it is crucial to fully understand the function and regulation of ENaC.
      PubDate: Thu, 01 Sep 2022 00:00:00 GMT-
       
  • Role of microRNAs in aquaporin 2 regulation

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      Authors: Petrillo; Federica; Trepiccione, Francesco
      Abstract: imagePurpose of review The current review aims to present the most recent achievements on the role of microRNAs (miRNAs) on the kidney function to stimulate research in the field and to expand new emerging concepts.Recent findings The focus is on the role of miRNAs in intercellular communication along the segments of the nephron and on the epi-miRNAs, namely the possibility of some miRNAs to modulate the epigenetic machinery and so gene expression. Indeed, recent evidence showed that miRNAs included in exosomes and released by proximal tubule cells can modulate ENaC activity on cells of collecting duct. These data, although, from in-vitro models open to a novel role for miRNAs to participate in paracrine signaling pathways. In addition, the role of miRNAs as epigenetic modulators is expanding not only in the cancer field, but also in the other kidney diseases. Recent evidence identified three miRNAs able to modulate the AQP2 promoter metilation and showing an additional level of regulation for the AQP2.Summary These evidence can inspire novel area of research both for renal physiology and drug discovery. The diseases involving the collecting duct are still missing disease modifying agents and the expanding miRNAs field could represent an opportunity.
      PubDate: Thu, 01 Sep 2022 00:00:00 GMT-
       
  • The genetic spectrum of Gitelman(-like) syndromes

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      Authors: Schlingmann; Karl P.; de Baaij, Jeroen H.F.
      Abstract: imagePurpose of review Gitelman syndrome is a recessive salt-wasting disorder characterized by hypomagnesemia, hypokalemia, metabolic alkalosis and hypocalciuria. The majority of patients are explained by mutations and deletions in the SLC12A3 gene, encoding the Na+-Cl−-co-transporter (NCC). Recently, additional genetic causes of Gitelman-like syndromes have been identified that should be considered in genetic screening. This review aims to provide a comprehensive overview of the clinical, genetic and mechanistic aspects of Gitelman(-like) syndromes.Recent findings Disturbed Na+ reabsorption in the distal convoluted tubule (DCT) is associated with hypomagnesemia and hypokalemic alkalosis. In Gitelman syndrome, loss-of-function mutations in SLC12A3 cause impaired NCC-mediated Na+ reabsorption. In addition, patients with mutations in CLCKNB, KCNJ10, FXYD2 or HNF1B may present with a similar phenotype, as these mutations indirectly reduce NCC activity. Furthermore, genetic investigations of patients with Na+-wasting tubulopathy have resulted in the identification of pathogenic variants in MT-TI, MT-TF, KCNJ16 and ATP1A1. These novel findings highlight the importance of cell metabolism and basolateral membrane potential for Na+ reabsorption in the DCT.Summary Altogether, these findings extend the genetic spectrum of Gitelman-like electrolyte alterations. Genetic testing of patients with hypomagnesemia and hypokalemia should cover a panel of genes involved in Gitelman-like syndromes, including the mitochondrial genome.
      PubDate: Thu, 01 Sep 2022 00:00:00 GMT-
       
 
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