Arif Khwaja

ORCID: 0000-0002-4690-3649
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About
Contact & Profiles
Research Areas
  • Chronic Kidney Disease and Diabetes
  • Renal Diseases and Glomerulopathies
  • Dialysis and Renal Disease Management
  • Parathyroid Disorders and Treatments
  • Blood Pressure and Hypertension Studies
  • Renal and Vascular Pathologies
  • Bone health and treatments
  • Bone health and osteoporosis research
  • Protein Kinase Regulation and GTPase Signaling
  • Organ Donation and Transplantation
  • Vasculitis and related conditions
  • PI3K/AKT/mTOR signaling in cancer
  • Vitamin D Research Studies
  • Cell Adhesion Molecules Research
  • Medical Imaging and Pathology Studies
  • Renal Transplantation Outcomes and Treatments
  • Pharmacological Effects and Toxicity Studies
  • Bone and Joint Diseases
  • Renal and related cancers
  • Transplantation: Methods and Outcomes
  • Diabetes Treatment and Management
  • Acute Kidney Injury Research
  • Biomedical Research and Pathophysiology
  • Liver Disease Diagnosis and Treatment
  • Amyloidosis: Diagnosis, Treatment, Outcomes

Sheffield Kidney Institute
2014-2024

Sheffield Teaching Hospitals NHS Foundation Trust
2016-2024

The Royal Free Hospital
2024

Roland Hill (United Kingdom)
2024

University College London
2024

Cardiff University
2024

University of Sheffield
2022

Northern General Hospital
2009-2020

National Health Service
2018

King's College London
2000-2006

tion’, implying that most patients ‘should’ receive a particular action. In contrast, level 2 guidelines are essentially ‘suggestions’ and deemed to be ‘weak’ or discretionary, recognising management decisions may vary in different clinical contexts. Each recommendation was further graded from A D by the quality of evidence underpinning them, with grade referring high whilst recognised ‘very low’ base. The overall strength supporting is summarised table 1 . focused on 4 key domains: (1) AKI...

10.1159/000339789 article EN Nephron Clinical Practice 2012-08-07

Renin-angiotensin system (RAS) inhibitors - including angiotensin-converting-enzyme (ACE) and angiotensin-receptor blockers (ARBs) slow the progression of mild or moderate chronic kidney disease. However, results some studies have suggested that discontinuation RAS in patients with advanced disease may increase estimated glomerular filtration rate (eGFR) its decline.In this multicenter, open-label trial, we randomly assigned progressive (eGFR, <30 ml per minute 1.73 m2 body-surface area)...

10.1056/nejmoa2210639 article EN New England Journal of Medicine 2022-11-03

Blood pressure (BP) control and reduction of urinary protein excretion using agents that block the renin–angiotensin aldosterone system are mainstay therapy for chronic kidney disease (CKD). Research has confirmed benefits in mild CKD, but data on angiotensin-converting enzyme inhibitor (ACEi) or angiotensin receptor blocker (ARB) use advanced CKD lacking. In STOP-ACEi trial, we aim to confirm preliminary findings which suggest withdrawal ACEi/ARB treatment can stabilize even improve renal...

10.1093/ndt/gfv346 article EN cc-by Nephrology Dialysis Transplantation 2015-09-30

Background Renal osteodystrophy is common in advanced CKD, but characterization of bone turnover status can only be achieved by histomorphometric analysis biopsy specimens (gold standard test). We tested whether biomarkers and high-resolution peripheral computed tomography (HR-pQCT) parameters predict determined histomorphometry. Methods obtained fasting blood samples from 69 patients with CKD stages 4–5, including on dialysis, 68 controls for biomarker (intact parathyroid hormone [iPTH],...

10.1681/asn.2017050584 article EN Journal of the American Society of Nephrology 2018-03-19

In September 2017, KDIGO (Kidney Disease: Improving Global Outcomes) convened a Controversies Conference titled Blood Pressure in Chronic Kidney Disease (CKD). The purpose of the meeting was to consider which recommendations from 2012 Clinical Practice Guideline for Management CKD should be reevaluated based on new evidence clinical trials. Participants included multidisciplinary panel and scientific experts. Discussions focused optimal means measuring blood pressure (BP) as well managing BP...

10.1016/j.kint.2018.12.025 article EN cc-by-nc-nd Kidney International 2019-04-19

Limited survival data are available on chronic kidney disease stage 5 (CKD 5) patients who opt for conservative management rather than dialysis.To measure in such and investigate potential factors predicting survival.Retrospective analysis of a cohort conservatively managed CKD from single center.Survival was measured 69 the time they were first known to have 5. Comorbidities, residual renal function other laboratory parameters (calcium, phosphate, parathyroid hormone, albumin hemoglobin)...

10.1093/qjmed/hcp068 article EN QJM 2009-06-17

Timothy Ellam and colleagues argue for a focus on what diagnosis means individual patients rather than population risks Around half of people aged over 75 meet current diagnostic criteria chronic kidney disease (CKD). However, labelling them all as diseased is controversial may cause unnecessary anxiety.1 2 The classification system defining this epidemic CKD in elderly validated primarily an epidemiological risk stratification tool clinical aid to patient management. We highlight the need...

10.1136/bmj.h6559 article EN BMJ 2016-01-18
Maria Pippias Gaetano Alfano Dearbhla Kelly María José Soler Letizia De Chiara and 87 more Timothy O. Olanrewaju Silvia Arruebo Aminu K. Bello Fergus Caskey Sandrine Damster Jo‐Ann Donner Vivekanand Jha David W. Johnson Adeera Levin Charu Malik Masaomi Nangaku Ikechi G. Okpechi Marcello Tonelli Feng Ye Rosanna Coppo Liz Lightstone Atefeh Amouzegar Hans‐Joachim Anders Jyoti Baharani Debasish Banerjee Boris Bikbov Edwina A. Brown Yeoungjee Cho Kathleen Claes Naomi Clyne Mogamat Razeen Davids Sara N. Davison Hassane M. Diongole Smita Divyaveer Gavin Dreyer Jan Dudley Udeme E. Ekrikpo Isabelle Éthier Rhys Evans Stanley Fan Winston Wing‐Shing Fung Maurizio Gallieni Anukul Ghimire Ghenette Houston Htay Htay Kwaifa Salihu Ibrahim Georgina Irish Kailash Jindal Arif Khwaja Rowena Lalji Vassilios Liakopoulos Valérie A. Luyckx Manuel Macı́a Hans‐Peter Marti Piergiorgio Messa Thomas Müller Aisha M. Nalado Brendon L. Neuen Dorothea Nitsch Fernando Nolasco Rainer Oberbauer Mohamed A. Osman Αikaterini Papagianni Анна Петрова Giorgina Barbara Piccoli Liam Plant Giuseppe Remuzzi Parnian Riaz Joris J. T. H. Roelofs Michael A. Rudnicki Syed Saad Aminu Muhammad Sakajiki Johannes B. Scheppach Emily See Rukshana Shroff Marit D. Solbu Stephen M. Sozio Giovanni FM Strippoli Maarten W. Taal James Tataw Ashu Sophanny Tiv Somkanya Tungsanga Jeroen B. van der Net Raymond Vanholder Andrea K. Viecelli Katie Vinen Bruno Vogt Marina Wainstein Talia Weinstein David C. Wheeler Emily K. Yeung Deenaz Zaidi

10.1016/j.kisu.2024.01.008 article EN Kidney International Supplements 2024-04-01

ABSTRACT. Targeting the Ras family of monomeric GTPases has been suggested as a therapeutic strategy in proliferative renal diseases. This article reports effects antagonist farnesylthiosalicylic acid (FTS) rat thy-1 nephritis, model which cytokine-driven glomerular cell proliferation and invasion is likely to involve signaling pathways. FTS vitro specifically inhibits binding discrete membrane sites, thereby downregulating several Ras-dependent functions accelerating degradation. Forty-four...

10.1097/01.asn.0000057543.55318.8b article EN Journal of the American Society of Nephrology 2003-04-01

Chylous ascites is a rare complication in patients undergoing peritoneal dialysis. It may occur due to traumatic dialysis catheter insertion or other causes. important be aware of this condition as it confused with peritonitis, and antibiotics inappropriately administered. We report case chylous occurring after discuss management condition.

10.1177/089686080802800306 article EN Peritoneal Dialysis International 2008-05-01

Renin-angiotensin system (RAS) inhibitors are considered first-line agents for hypertensive patients with progressive chronic kidney disease (CKD). In a previous study, we showed that stopping RAS increased estimated glomerular filtration rate (eGFR) in significant number of advanced CKD patients. The present study tries to address who would benefit and whether this is predictable.Forty-three stage 4 had stopped were followed at least 24 months. Compared outcome groups 'alive', 'renal...

10.1159/000330289 article EN Nephron Clinical Practice 2011-11-08
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