| Effect of BMI and urinary pH on urolithiasis and its composition. | |
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MedLine Citation:
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PMID: 23354193 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Urolithiasis is a common urological disease predominantly affecting males. The lifetime risk of urolithiasis varies from 1% to 5% in Asia, 5% to 9% in Europe, 10% to 15% in the USA and 20% to 25% in the middle-east; lowest prevalence is reported from Greenland and Japan. Such differences have been explained on the basis of race, diet and climate factors. Furthermore, changing socio-economic conditions have generated changes in the prevalence, incidence and distribution for age, sex and type of lithiasis in terms of both the site and the chemical as well as the physical composition of the calculi. The aim of our study was to determine the association between body mass index (BMI) and urine pH in patients with urolithiasis and the influence of body size, as reflected by the BMI, on the composition. The study was conducted in the Department of Biochemistry, Maharishi Markandeshwar Institute of Medical Sciences and Research, on urolithiatic patients. The data included patient's age, sex, BMI, urine pH, serum calcium, serum uric acid, serum creatinine and stone composition. Data from 100 patients, 70 men (70%) and 30 women (30%), were analyzed, with 28 patients having normal weight, 38 patients being overweight and 34 patients being obese. The mean age of the patients was 36.58 ± 9.91 years in group I, 40.47 ± 14.48 years in group II and 37.85 ± 12.46 years in group III (P > 0.05). The stone composition was calcium oxalate (CaOx) in 66 patients, calcium phosphate (CaP) in 60 patients, uric acid (UA) in 38 patients, combined calcium oxalate and calcium phosphate in 28 patients and three stones in 10 patients. The urinary pH levels (mean ± SD) were 7.78 ± 1.49 in group I, 7.15 ± 1.11 in group II and 6.29 ± 1.14 in group III patients (P = 0.0001). Urine pH showed a stepwise decrease with increasing BMI (inverse correlation). Urine pH is inversely related to BMI among patients with urolithiasis, as is the occurrence of urate, calcium oxalate and calcium phosphate stones. Similarly, the serum creatinine increased as the BMI and number of stones increased among the study population. |
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Authors:
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Qazi Najeeb; Imran Masood; Neeru Bhaskar; Harnam Kaur; Jasbir Singh; Rajesh Pandey; K S Sodhi; Suvarna Prasad; Sheikh Ishaq; Ruhi Mahajan |
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Publication Detail:
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Type: Comparative Study; Journal Article |
Journal Detail:
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Title: Saudi journal of kidney diseases and transplantation : an official publication of the Saudi Center for Organ Transplantation, Saudi Arabia Volume: 24 ISSN: 1319-2442 ISO Abbreviation: Saudi J Kidney Dis Transpl Publication Date: 2013 Jan |
Date Detail:
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Created Date: 2013-01-28 Completed Date: 2013-03-05 Revised Date: 2013-04-05 |
Medline Journal Info:
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Nlm Unique ID: 9436968 Medline TA: Saudi J Kidney Dis Transpl Country: Saudi Arabia |
Other Details:
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Languages: eng Pagination: 60-6 Citation Subset: IM |
Affiliation:
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Department of Biochemistry, Maharishi Markandeshwar Institute of Medical Sciences and Research, Mullana, Ambala, Haryana, India. qnajeeb@gmail.com |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Body Mass Index* Calcium Oxalate / urine* Calcium Phosphates / urine* Female Humans Hydrogen-Ion Concentration India / epidemiology Male Obesity / complications*, epidemiology, urine Overweight / complications*, epidemiology, urine Prevalence Risk Factors Uric Acid / urine* Urinalysis Urine / chemistry Urolithiasis / complications, epidemiology, urine* |
| Chemical | |
Reg. No./Substance:
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0/Calcium Phosphates; 25454-23-3/Calcium Oxalate; 69-93-2/Uric Acid; 97Z1WI3NDX/calcium phosphate |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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