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1.
One Health Outlook ; 3: 4, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33829142

RESUMO

BACKGROUND: Chronic kidney disease of unknown etiology (CKDu) was first recognized in Sri Lanka in the early 1990s, and since then it has reached epidemic levels in the North Central Province of the country. The prevalence of CKDu is reportedly highest among communities that engage in chena and paddy farming, which is most often practiced in the dry zone including the North Central and East Central Provinces of Sri Lanka. Previous studies have suggested varied hypotheses for the etiology of CKDu; however, there is not yet a consensus on the primary risk factors, possibly due to disparate study designs, sample populations, and methodologies. METHODS: The goal of this pilot case-control study was to evaluate the relationships between key demographic, cultural, and occupational variables as risk factors for CKDu, with a primary interest in pesticide exposure both occupationally and through its potential use as an ingredient in brewed kasippu alcohol. An extensive one health focused survey was developed with in cooperation with the Centre for Research, Education, and Training on Kidney Diseases of Sri Lanka. RESULTS: A total of 56 CKDu cases and 54 control individuals were surveyed using a proctored, self-reported questionnaire. Occupational pesticide exposure and alcohol consumption were not found to be significant risk factors for CKDu. However, a statistically significant association with CKDu was observed with chewing betel (adjusted odds ratio [aOR]: 6.11, 95% confidence interval [CI]: 1.93, 19.35), age (aOR: 1.07, 95% CI: 1.02, 1.13), owning a pet dog (aOR: 3.74, 95% CI: 1.38, 10.11), water treatment (aOR: 3.68, 95% CI: 1.09, 12.43) and pests in the house (aOR: 5.81, 95% CI: 1.56, 21.60). CONCLUSIONS: The findings of this study suggest future research should focus on practices associated with chewing betel, potential animal interactions including pests in the home and pets, and risk factors associated with water. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s42522-020-00034-3.

2.
Nephrology (Carlton) ; 23(5): 430-437, 2018 May.
Artigo em Inglês | MEDLINE | ID: mdl-28370958

RESUMO

AIM: Environmental toxin/s is alleged to be the contributory factor for the chronic kidney disease of unknown aetiology (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. Kidney function of subjects in both groups were monitored in terms of blood pressure, serum creatinine, serum calcium, serum phosphorus, hemoglobin, estimated glomerular filtration rate and urinary protein at 6 months intervals during the intervention and follow up periods. RESULTS: Diminished disease progression rate was observed in CKDu patients in the intervention group when compared with the non- intervention group based on serum creatinine, Hb, estimated glomerular filtration rate and urinary protein levels. Extensive interventional studies are required to generalize effect of drinking water on CKDu population. CONCLUSION: The habitual drinking water is likely to be a contributory factor towards the progression of the disease.


Assuntos
Água Potável , Ingestão de Líquidos , Taxa de Filtração Glomerular , Rim/fisiopatologia , Insuficiência Renal Crônica/terapia , Poluentes Químicos da Água/efeitos adversos , Abastecimento de Água , Adulto , Biomarcadores/sangue , Biomarcadores/urina , Progressão da Doença , Água Potável/efeitos adversos , Feminino , Humanos , Masculino , Projetos Piloto , Proteinúria/etiologia , Proteinúria/fisiopatologia , Proteinúria/terapia , Insuficiência Renal Crônica/diagnóstico , Insuficiência Renal Crônica/etiologia , Insuficiência Renal Crônica/fisiopatologia , Fatores de Risco , Sri Lanka , Fatores de Tempo
3.
BMC Nephrol ; 18(1): 199, 2017 Jun 19.
Artigo em Inglês | MEDLINE | ID: mdl-28629425

RESUMO

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. The diagnostic accuracy of each marker was compared using the above three study groups. RESULTS: In receiver operating characteristics (ROC) plots for creatinine, cystatin C and ACR, values of area under the curve (AUC) were 0.926, 0.920 and 0.737 respectively when CKDu was compared to non-endemic control. When CKDu was compared to endemic control, AUCs of above three analytes were distinctly lower as 0.718, 0.808 and 0.678 respectively. Cystatin C exhibited the highest sensitivity for CKDu when analyzed against both control groups where respective sensitivities were 0.75 against endemic control and 0.89 against non-endemic control. ROC-optimal cutoff limits of creatinine, cystatin C and ACR in CKDu vs non-endemic control were 89.0 µmol/L, 1.01 mg/L and 6.06 mg/g-Cr respectively, whereas in CKDu vs endemic control the respective values were 111.5 µmol/L, 1.22 mg/L and 12.66 mg/g-Cr. CONCLUSIONS: Amongst the three biomarkers evaluated in this study, our data suggest that Cystatin C is the most accurate functional marker in detecting CKDu in endemic regions, yet the high cost hinders its usability on general population. Creatinine is favorable over dipstick proteinuria owing to its apparent accuracy and cost efficiency, while having the ability to complement the kidney damage marker (ACR) in screening. ACR may not be favorable as a standalone screening marker in place of dipstick proteinuria due to its significant decline in sensitivity against the CKDu-endemic population. However, creatinine and ACR in a complementary manner could overcome current shortcomings of dipstick proteinuria and such a dual marker tool could be commodious in screening CKDu-type tubulointerstital diseases. Furthermore, use of ACR may also increase the ability to clinically discriminate CKDu from other glomerular nephropathies.


Assuntos
Proteinúria/sangue , Proteinúria/urina , Insuficiência Renal Crônica/sangue , Insuficiência Renal Crônica/urina , Adulto , Biomarcadores/sangue , Biomarcadores/urina , Cistatina C/sangue , Cistatina C/urina , Humanos , Masculino , Pessoa de Meia-Idade , Proteinúria/epidemiologia , Insuficiência Renal Crônica/epidemiologia , Sri Lanka/epidemiologia , Urinálise/métodos , Urinálise/normas
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