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Year : 2005  |  Volume : 37  |  Issue : 1  |  Page : 43--44

Modulatory effect of Plectranthus amboinicus Lour. on ethylene glycol-induced nephrolithiasis in rats

M Alvin Jose, Ibrahim, S Janardhanan 
 Department of Pharmacology, Cherraan's college of Pharmacy, Coimbatore - 641039, Tamil Nadu, India

Correspondence Address:
M Alvin Jose
Department of Pharmacology, Cherraan«SQ»s college of Pharmacy, Coimbatore - 641039, Tamil Nadu
India




How to cite this article:
Alvin Jose M, Ibrahim, Janardhanan S. Modulatory effect of Plectranthus amboinicus Lour. on ethylene glycol-induced nephrolithiasis in rats.Indian J Pharmacol 2005;37:43-44


How to cite this URL:
Alvin Jose M, Ibrahim, Janardhanan S. Modulatory effect of Plectranthus amboinicus Lour. on ethylene glycol-induced nephrolithiasis in rats. Indian J Pharmacol [serial online] 2005 [cited 2021 Nov 29 ];37:43-44
Available from: https://www.ijp-online.com/text.asp?2005/37/1/43/13857


Full Text

Sir,

Nephrolithiasis is worldwide in distribution and affecting 2% of the world population.[1] In order to find a herbal remedy for this disease, the present study was undertaken to evaluate the antilithiotic activity of the concentrated fresh juice of the leaves of Plectranthus amboinicus Lour. It is popularly known in English as Indian borage, syn. Coleus amboinicus (Family: Lamiaceae). Indians use it widely for various illnesses, including kidney stone.[2] It is scientifically evaluated for its antibacterial[3] and antioxidant activity.[4]

The fresh plants of P. amboinicus were collected from the herbal garden, Avinasilingam Deemed University, Coimbatore and authenticated at the botany department. About 500 g of fresh leaves were cut to small pieces and fresh juice was prepared adding water (30 ml), with the help of mixer. The fresh juice was filtered and concentrated to a dry mass by vacuum distillation; black dry residue was obtained (16 g). The LD50 was done using OECD guideline for testing of chemicals revised draft guideline 423. The one tenth of the LD50 500 mg/kg was chosen as a dose for the further study.

Adult male albino rats of the Wistar strain, weighing between 150-200 g were used for this study. Animals were acclimatized and maintained at 24o C±2o C, 70% RH and12h/12h light and dark cycle throughout the study. They were fed with standard pellet diet (Hindustan liver limited, Bangalore, India) and water ad libitum. The CPCSEA and the local ethical committee approved the studies. The animals were divided into three groups G1, G2, and G3 of six animals each. Following the method of Tamilselvan,[5] nephrolithiasis was induced. Group 1(G1: control) was fed with ordinary drinking water. Group 2(G2: lithiotic control) were fed with 1% ethylene glycolated water for 35 days. Group 3(G3: test group) were fed with 1% ethylene glycolated water and were simultaneously administered, by gastric tube, 500 mg/kg of concentrated fresh juice of the leaves of the Plectranthus amboinicus Lour for 35 days. On the 34th day all the animals were placed in metabolic cages and urine was collected for 24 hours and urine was analyzed for the presence of calcium, oxalate and total protein. Calcium,[6] and total protein[7] were estimated by an auto analyzer (Logotech s.r.l, tecno-168). Oxalates were analyzed by the method of Hodgkinson and Williams.[8] On Day 35 the animals were sacrificed, the kidneys were excised, washed with cold saline, fixed in 10% formalin solution and subjected to histopathological studies.

The results are expressed as mean ± SEM. The data were subjected to one-way ANOVA followed by Turkey-Kramer multiple comparison tests. P values P. amboinicus, particularly of calcium oxalate origin. Further research is needed to explore the exact active principle(s) responsible for the antilithiotic activity and the mechanism of action.

References

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2Orient Longman. Indian Medicinal Plants. Vol. 4. Madras. Microprint; 1995.
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