Salivary Creatinine Estimation as an Alternative to Serum Creatinine in Chronic Kidney Disease Patients

Context. Sampling blood for serum analysis is an invasive procedure. A noninvasive alternative would be beneficial to patients and health care professionals. Aim. To correlate serum and salivary creatinine levels and evaluate the role of saliva as a noninvasive alternative to serum for creatinine e...

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Main Authors: Ramesh Venkatapathy, Vasupradha Govindarajan, Nirima Oza, Sreejith Parameswaran, Balamurali Pennagaram Dhanasekaran, Karthikshree V. Prashad
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:International Journal of Nephrology
Online Access:http://dx.doi.org/10.1155/2014/742724
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author Ramesh Venkatapathy
Vasupradha Govindarajan
Nirima Oza
Sreejith Parameswaran
Balamurali Pennagaram Dhanasekaran
Karthikshree V. Prashad
author_facet Ramesh Venkatapathy
Vasupradha Govindarajan
Nirima Oza
Sreejith Parameswaran
Balamurali Pennagaram Dhanasekaran
Karthikshree V. Prashad
author_sort Ramesh Venkatapathy
collection DOAJ
description Context. Sampling blood for serum analysis is an invasive procedure. A noninvasive alternative would be beneficial to patients and health care professionals. Aim. To correlate serum and salivary creatinine levels and evaluate the role of saliva as a noninvasive alternative to serum for creatinine estimation in chronic kidney disease patients. Study Design. Case-control study. Methods. Blood and saliva samples were collected from 37 healthy individuals and 105 chronic kidney disease patients. Serum and salivary creatinine levels were estimated using automatic analyser. Statistical Analysis. The serum and salivary creatinine levels between controls and cases were compared using t-test. Correlation between serum and salivary creatinine was obtained in controls and cases using Pearson correlation coefficient. Receiver operating characteristic analysis was done to assess the diagnostic performance of salivary creatinine. Cut-off values were established for salivary creatinine. Results. Serum and salivary creatinine levels were significantly higher in CKD patients than controls. The correlation was negative in controls and positive in cases. Area under the curve for salivary creatinine was found to be 0.967. A cut-off value of 0.2 mg/dL gave a sensitivity of 97.1% and specificity of 86.5%. Conclusion. Saliva can be used as a noninvasive alternative to serum for creatinine estimation.
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spelling doaj-art-45e9ebe30c4e402999f41b7f66b4f83b2025-08-20T02:39:19ZengWileyInternational Journal of Nephrology2090-214X2090-21582014-01-01201410.1155/2014/742724742724Salivary Creatinine Estimation as an Alternative to Serum Creatinine in Chronic Kidney Disease PatientsRamesh Venkatapathy0Vasupradha Govindarajan1Nirima Oza2Sreejith Parameswaran3Balamurali Pennagaram Dhanasekaran4Karthikshree V. Prashad5Department of Oral Pathology & Microbiology, Mahatma Gandhi Post Graduate Institute of Dental Sciences, Gorimedu, Puducherry 605006, IndiaDepartment of Oral Pathology & Microbiology, Mahatma Gandhi Post Graduate Institute of Dental Sciences, Gorimedu, Puducherry 605006, IndiaDepartment of Oral Pathology & Microbiology, Mahatma Gandhi Post Graduate Institute of Dental Sciences, Gorimedu, Puducherry 605006, IndiaDepartment of Nephrology, Jawaharlal Institute of Postgraduate Medical Education and Research, Gorimedu, Puducherry 605006, IndiaDepartment of Oral Pathology & Microbiology, Mahatma Gandhi Post Graduate Institute of Dental Sciences, Gorimedu, Puducherry 605006, IndiaDepartment of Oral Pathology & Microbiology, Mahatma Gandhi Post Graduate Institute of Dental Sciences, Gorimedu, Puducherry 605006, IndiaContext. Sampling blood for serum analysis is an invasive procedure. A noninvasive alternative would be beneficial to patients and health care professionals. Aim. To correlate serum and salivary creatinine levels and evaluate the role of saliva as a noninvasive alternative to serum for creatinine estimation in chronic kidney disease patients. Study Design. Case-control study. Methods. Blood and saliva samples were collected from 37 healthy individuals and 105 chronic kidney disease patients. Serum and salivary creatinine levels were estimated using automatic analyser. Statistical Analysis. The serum and salivary creatinine levels between controls and cases were compared using t-test. Correlation between serum and salivary creatinine was obtained in controls and cases using Pearson correlation coefficient. Receiver operating characteristic analysis was done to assess the diagnostic performance of salivary creatinine. Cut-off values were established for salivary creatinine. Results. Serum and salivary creatinine levels were significantly higher in CKD patients than controls. The correlation was negative in controls and positive in cases. Area under the curve for salivary creatinine was found to be 0.967. A cut-off value of 0.2 mg/dL gave a sensitivity of 97.1% and specificity of 86.5%. Conclusion. Saliva can be used as a noninvasive alternative to serum for creatinine estimation.http://dx.doi.org/10.1155/2014/742724
spellingShingle Ramesh Venkatapathy
Vasupradha Govindarajan
Nirima Oza
Sreejith Parameswaran
Balamurali Pennagaram Dhanasekaran
Karthikshree V. Prashad
Salivary Creatinine Estimation as an Alternative to Serum Creatinine in Chronic Kidney Disease Patients
International Journal of Nephrology
title Salivary Creatinine Estimation as an Alternative to Serum Creatinine in Chronic Kidney Disease Patients
title_full Salivary Creatinine Estimation as an Alternative to Serum Creatinine in Chronic Kidney Disease Patients
title_fullStr Salivary Creatinine Estimation as an Alternative to Serum Creatinine in Chronic Kidney Disease Patients
title_full_unstemmed Salivary Creatinine Estimation as an Alternative to Serum Creatinine in Chronic Kidney Disease Patients
title_short Salivary Creatinine Estimation as an Alternative to Serum Creatinine in Chronic Kidney Disease Patients
title_sort salivary creatinine estimation as an alternative to serum creatinine in chronic kidney disease patients
url http://dx.doi.org/10.1155/2014/742724
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