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https://www.readbyqxmd.com/read/29883246/glyphosate-and-ampa-of-agricultural-soil-surface-water-groundwater-and-sediments-in-areas-prevalent-with-chronic-kidney-disease-of-unknown-etiology-sri-lanka
#1
Shankani Gunarathna, Buddhika Gunawardana, Mahesh Jayaweera, Jagath Manatunge, Kasun Zoysa
Glyphosate, which is commercially available as Roundup®, was the widely used herbicide in Sri Lanka until 2015 and is suspected to be one of the causal factors for Chronic Kidney Disease of unknown etiology (CKDu). This research, therefore, aims at studying the presence of glyphosate and Aminomethylphosphonic acid (AMPA) in different environmental matrices in CKDu prevalent areas. Topsoil samples from agricultural fields, water samples from nearby shallow wells and lakes, and sediment samples from lakes were collected and analyzed for glyphosate and AMPA using the LC/MS...
June 8, 2018: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
https://www.readbyqxmd.com/read/29808448/transcriptome-analysis-supports-viral-infection-and-fluoride-toxicity-as-contributors-to-chronic-kidney-disease-of-unknown-etiology-ckdu-in-sri-lanka
#2
Saravanabavan Sayanthooran, Lishanthe Gunerathne, Tilak D J Abeysekera, Dhammika N Magana-Arachchi
PURPOSE: Chronic kidney disease of unknown etiology (CKDu), having epidemic characteristics, is being diagnosed increasingly in certain tropical regions of the world, mainly Latin America and Sri Lanka. They have been observed primarily in farming communities and current hypotheses point toward many environmental and occupational triggers. CKDu does not have common etiologies of chronic kidney disease (CKD) such as hypertension, diabetes, or autoimmune disease. We aimed to understand the molecular processes underlying CKDu in Sri Lanka using transcriptome analysis...
May 28, 2018: International Urology and Nephrology
https://www.readbyqxmd.com/read/29769043/early-renal-damage-among-children-living-in-the-region-of-highest-burden-of-chronic-kidney-disease-of-unknown-etiology-ckdu-in-sri-lanka
#3
S B Agampodi, G S Amarasinghe, P G C R Naotunna, C S Jayasumana, S H Siribaddana
BACKGROUND: Chronic kidney disease of unknown origin (CKDu) in Sri Lanka is grouped with several other epidemics of similar nature across the world as Chronic Interstitial Nephritis in Agricultural Communities (CINAC). In CKDu endemic countries, the focus has mainly been on adults. We hypothesized that studying distribution and factors associated with elevated urine albumin to creatinine ratio (UACR), an early marker of kidney injury, among children living in a CKDu endemic area may provide important clues about the onset and progression of the disease...
May 16, 2018: BMC Nephrology
https://www.readbyqxmd.com/read/29769014/effect-of-fluoride-on-major-organs-with-the-different-time-of-exposure-in-rats
#4
Thanusha Perera, Shirani Ranasinghe, Neil Alles, Roshitha Waduge
BACKGROUND: High fluoride levels in drinking water in relation to the prevalence of chronic kidney disease of unknown etiology (CKDu) in Sri Lanka were investigated using rats as an experimental model. METHOD: The effects of fluoride after oral administration of Sodium fluoride (NaF) at levels of 0, 0.5, 5 and 20 ppm F- were evaluated in adult male Wistar rats. Thirty-six rats were randomly divided into 4 groups (n = 9), namely, control, test I, II, and III...
May 16, 2018: Environmental Health and Preventive Medicine
https://www.readbyqxmd.com/read/29676757/arsenic-cadmium-lead-and-chromium-in-well-water-rice-and-human-urine-in-sri-lanka-in-relation-to-chronic-kidney-disease-of-unknown-etiology
#5
H M Ayala S Herath, Tomonori Kawakami, Shiori Nagasawa, Yuka Serikawa, Ayuri Motoyama, G G Tushara Chaminda, S K Weragoda, S K Yatigammana, A A G D Amarasooriya
Chronic kidney disease of unknown etiology (CKDu) is spreading gradually in Sri Lanka. In the current research, 1,435 well water samples from all 25 districts of Sri Lanka, 91 rice samples, and 84 human urine samples from both CKDu-endemic and non-endemic areas in Sri Lanka were analyzed for arsenic, cadmium, lead, and chromium to detect whether toxic elements could be a cause of CKDu. The liver-type fatty acid binding protein (L-FABP) concentration and arsenic, cadmium, lead, and chromium concentrations of the urine samples were analyzed to determine the relation of L-FABP with arsenic, cadmium, lead, and chromium...
April 2018: Journal of Water and Health
https://www.readbyqxmd.com/read/29513702/morphological-and-clinical-findings-in-sri-lankan-patients-with-chronic-kidney-disease-of-unknown-cause-ckdu-similarities-and-differences-with-mesoamerican-nephropathy
#6
Julia Wijkström, Channa Jayasumana, Rajeewa Dassanayake, Nalin Priyawardane, Nimali Godakanda, Sisira Siribaddana, Anneli Ring, Kjell Hultenby, Magnus Söderberg, Carl-Gustaf Elinder, Annika Wernerson
In Sri Lanka, an endemic of chronic kidney disease of unknown origin (CKDu) is affecting rural communities. The endemic has similarities with Mesoamerican Nephropathy (MeN) in Central America, however it has not yet been clarified if the endemics are related diagnostic entities. We designed this study of kidney biopsies from patients with CKDu in Sri Lanka to compare with MeN morphology. Eleven patients with CKDu were recruited at the General Hospital, Polonnaruwa, using similar inclusion and exclusion criteria as our previous MeN studies...
2018: PloS One
https://www.readbyqxmd.com/read/29421748/impact-of-a-commercial-glyphosate-formulation-on-adsorption-of-cd-ii-and-pb-ii-ions-on-paddy-soil
#7
T Divisekara, A N Navaratne, A S K Abeysekara
Use of glyphosate as a weedicide on rice cultivation has been a controversial issue in Sri Lanka, due to the hypothesis that the metal complexes of commercial glyphosate is one of the causative factors of Chronic Kidney Disease of unknown aetiology (CKDu) prevalent in some parts of Sri Lanka. The effect of commercial glyphosate on the adsorption and desorption of Cd(II) and Pb(II) ions on selective paddy soil studied using batch experiments, over a wide concentration range, indicates that the Langmuir adsorption isotherm model is obeyed at low initial metal ion concentrations while the Freundlich adsorption isotherm model obeys at high metal ion concentrations in the presence and absence of glyphosate...
May 2018: Chemosphere
https://www.readbyqxmd.com/read/29390596/novel-urinary-biomarkers-and-their-association-with-urinary-heavy-metals-in-chronic-kidney-disease-of-unknown-aetiology-in-sri-lanka-a-pilot-study
#8
K Wanigasuriya, I Jayawardene, C Amarasiriwardena, R Wickremasinghe
Introduction: Chronic kidney disease of unknown etiology (CKDu) has emerged as a significant public health problem in Sri Lanka. The role of environmental exposure to cadmium and arsenic in the aetiology of CKDu is still unclear. Identification of a panel of novel urinary biomarkers would be invaluable in the study of toxin mediated damage postulated to be the aetiology of CKDu. Objectives: The aims of this study were to evaluate the profile of novel urinary biomarkers in CKDu patients and identify any association with environmental exposure to heavy metals...
December 26, 2017: Ceylon Medical Journal
https://www.readbyqxmd.com/read/29165145/organochlorine-pesticide-level-in-patients-with-chronic-kidney-disease-of-unknown-etiology-and-its-association-with-renal-function
#9
Rishila Ghosh, Manushi Siddarth, Neeru Singh, Vipin Tyagi, Pawan Kumar Kare, Basu Dev Banerjee, Om Prakash Kalra, Ashok Kumar Tripathi
BACKGROUND: Involvement of agrochemicals have been suggested in the development of chronic kidney disease of unknown etiology (CKDu). The association between CKDu and blood level of organochlorine pesticides (OCPs) in CKDu patients has been examined in the present study. METHODS: All the recruited study subjects (n = 300) were divided in three groups, namely, healthy control (n = 100), patients with chronic kidney disease of unknown etiology (n = 100), and patients with chronic kidney disease of known etiology (CKDk) (n = 100)...
May 26, 2017: Environmental Health and Preventive Medicine
https://www.readbyqxmd.com/read/28965591/tracing-environmental-aetiological-factors-of-chronic-kidney-diseases-in-the-dry-zone-of-sri-lanka-a-hydrogeochemical-and-isotope-approach
#10
Sudeera Wickramarathna, Shyamalie Balasooriya, Saranga Diyabalanage, Rohana Chandrajith
Chronic kidney disease of unknown aetiologies (CKDu) is increasingly recognized in tropical regions and is now considered a global health problem. A detailed hydrogeochemical investigation has been performed in three CKDu hotspots in Sri Lanka to assess the geo-environmental aetiological factors influencing this disease. A total of 71 ground- and 26 surface water samples were collected from Girandurukotte, Wilgamuwa and Nikawewa regions and analysed for major constituents and trace elements. The affected regions are dominated by Ca-Mg-HCO3 facies groundwater that is mainly controlled by silicate weathering...
December 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28948847/geochemical-and-isotopic-evidences-from-groundwater-and-surface-water-for-understanding-of-natural-contamination-in-chronic-kidney-disease-of-unknown-etiology-ckdu-endemic-zones-in-sri-lanka
#11
E A N V Edirisinghe, H Manthrithilake, H M T G A Pitawala, H A Dharmagunawardhane, R L Wijayawardane
Chronic kidney disease of unknown etiology (CKDu) is the main health issue in the dry zone of Sri Lanka. Despite many studies carried out, causative factors have not been identified yet clearly. According to the multidisciplinary researches carried out so far, potable water is considered as the main causative factor for CKDu. Hence, the present study was carried out with combined isotopic and chemical methods to understand possible relationships between groundwater; the main drinking water source, and CKDu in four endemic areas in the dry zone...
June 2018: Isotopes in Environmental and Health Studies
https://www.readbyqxmd.com/read/28926845/leptospirosis-renal-disease-emerging-culprit-of-chronic-kidney-disease-unknown-etiology
#12
Chih-Wei Yang
Leptospirosis is the most prevalent zoonosis affecting more than 1 million populations worldwide. Interestingly, leptospirosis endemic regions coincide with chronic kidney disease (CKD) hotspots largely due to flooding and agricultural overlaps. Acute leptospirosis induces multiple organ dysfunction including acute kidney injury and may predispose to CKD and end-stage renal disease, if not treated timely. Asymptomatic infection may carry the bacteria in the kidney and CKD progresses insidiously. Histologic finding of leptospirosis renal disease includes tubulointerstitial nephritis, interstitial fibrosis, and tubular atrophy...
2018: Nephron
https://www.readbyqxmd.com/read/28864964/chronic-kidney-disease-of-unknown-etiology-and-the-effect-of-multiple-ion-interactions
#13
M W C Dharma-Wardana
High incidence of chronic kidney disease of unknown etiology (CKDU) prevalent in many countries (e.g., Sri Lanka, equatorial America) is reviewed in the context of recent experimental work and using our understanding of the hydration of ions and proteins. Qualitative considerations based on Hofmeister-type action of these ions, as well as quantitative electrochemical models for the Gibbs free energy change for ionpair formation, are used to explain why (1) fluoride and water hardness due to magnesium ions (but not due to calcium ions) and similarly (2) cadmium ions in the presence of suitable pairing ions can be expected to be more nephrotoxic, while arsenite in the presence of fluoride and hardness may be expected to be less nephrotoxic...
April 2018: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/28842062/ajkd-atlas-of-renal-pathology-ckd-of-unknown-cause-ckdu-mesoamerican-nephropathy
#14
Mark A Lusco, Agnes B Fogo, Annika Östman Wernerson, Behzad Najafian, Charles E Alpers
No abstract text is available yet for this article.
September 2017: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/28666453/beginning-of-a-journey-unraveling-the-mystery-of-chronic-kidney-disease-of-unknown-aetiology-ckdu-in-sri-lanka
#15
Jacob Kumaresan, Ruwanika Seneviratne
BACKGROUND: Globally, chronic kidney disease of unknown aetiology (CKDu) is observed in several areas and among specific ethnic or occupational groups. Given the widespread environmental pollution and the proportions of agriculture workers world-wide, CKDu may be the next global public health issue demanding attention. Recent escalation of CKDu in Sri Lanka has caused a serious public health crisis in the country, made worse by lack of national data. MAIN TEXT: The specific geographic distribution, preponderance among farming population, similar histology findings and absence of usual risk factors for kidney disease indicate undetected nephrotoxic agents playing a role in causation...
June 30, 2017: Globalization and Health
https://www.readbyqxmd.com/read/28629425/screening-for-chronic-kidney-disease-of-uncertain-aetiology-in-sri-lanka-usability-of-surrogate-biomarkers-over-dipstick-proteinuria
#16
Samantha Ratnayake, Zeid Badurdeen, Nishantha Nanayakkara, Tilak Abeysekara, Neelakanthi Ratnatunga, Ranjith Kumarasiri
BACKGROUND: The use of dipstick proteinuria to screen Chronic Kidney Disease of uncertain aetiology (CKDu) in Sri Lanka is a recently debated matter of dispute. The aim of this study was to assess the suitability of biomarkers: serum creatinine, cystatin C and urine albumin to creatinine ratio (ACR) for screening CKDu in Sri Lanka. METHODS: Forty-four male CKDu patients and 49 healthy males from a CKDu-endemic region were selected. Meanwhile, 25 healthy males from a non-endemic region were selected as an absolute control...
June 19, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28535811/pesticide-exposures-and-chronic-kidney-disease-of-unknown-etiology-an-epidemiologic-review
#17
REVIEW
Mathieu Valcke, Marie-Eve Levasseur, Agnes Soares da Silva, Catharina Wesseling
The main causes of chronic kidney disease (CKD) globally are diabetes and hypertension but epidemics of chronic kidney disease of unknown etiology (CKDu) occur in Central America, Sri Lanka, India and beyond. Althoug also being observed in women, CKDu concentrates among men in agricultural sectors. Therefore, suspicions fell initially on pesticide exposure, but currently chronic heat stress and dehydration are considered key etiologic factors. Responding to persistent community and scientific concerns about the role of pesticides, we performed a systematic review of epidemiologic studies that addressed associations between any indicator of pesticide exposure and any outcome measure of CKD...
May 23, 2017: Environmental Health: a Global Access Science Source
https://www.readbyqxmd.com/read/28394638/bio-media-citizenship-and-chronic-kidney-disease-of-unknown-etiology-in-sri-lanka
#18
M W Amarasiri de Silva
In this article, I examine the crucial role of the biomedical industry, epidemiological and biomedical research, and the media in forming attitudes to and the understanding of chronic kidney disease of unknown etiology (CKDu) in Sri Lanka. Local conceptions of CKDu have been shaped by the circulation in the media of epidemiological research findings pertaining to the disease, biomedical interventions in the management of the disease in hospitals and clinics, community programs involving mass blood surveys and the testing of well water, and local food and health education programs carried out through village health committees...
April 10, 2017: Medical Anthropology
https://www.readbyqxmd.com/read/28390327/ingestion-of-dug-well-water-from-an-area-with-high-prevalence-of-chronic-kidney-disease-of-unknown-etiology-ckdu-and-development-of-kidney-and-liver-lesions-in-rats
#19
M G Thammitiyagodage, M M Gunatillaka, N Ekanayaka, C Rathnayake, N U Horadagoda, R Jayathissa, U K Gunaratne, W G Kumara, P Abeynayake
Introduction: Chronic kidney disease of unknown aetiology (CKDu) is prevalent in the North Central Province (NCP) of Sri Lanka and ingestion of dug well water is considered a potential causative factor. Three CKDu prevalent villages were selected from the NCP based on the number of CKDu patients in the locality. Methods: Forty Wistar rats were divided into four groups with 10 rats each. Group No 1, 2 and 3 were given water from selected dug wells. Control group was given tap water from Colombo...
March 31, 2017: Ceylon Medical Journal
https://www.readbyqxmd.com/read/28370958/diminished-disease-progression-rate-in-a-chronic-kidney-disease-population-following-the-replacement-of-dietary-water-source-with-quality-drinking-water-a-pilot-study
#20
Edirisinghe Arachchige Ranga Iroshanie Edirisinghe Siriwardhana, Ponnamperuma Aratchige Jayasumana Perera, Ramiah Sivakanesan, Tilak Abeysekara, Danaseela Bandara Nugegoda, Kosala Weerakoon, Dunusingha Asitha Surandika Siriwardhana
AIM: Environmental toxin/s is alleged to be the contributory factor for the chronic kidney disease of unknown etiology (CKDu) in Sri Lanka. The potential of drinking water as a medium for the nephrotoxic agents in the affected subjects has been comprehensively discoursed in the recent past. The present study was aimed to assess the effect of replacing the habitual drinking water on the kidney function of CKDu patients residing in the North Central Province of Sri Lanka: METHODS: An interventional study was carried out to assess the disease progression rate of a CKDu population whose habitual drinking water was replaced by bottled spring water certified by Sri Lanka Standard (SLS) for a period of 18 month along with a population of CKDu patients who continued with their usual drinking water...
March 29, 2017: Nephrology
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