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Biomedical subjects

R Nath

Publications and source records attributed to R Nath.

At least 253 records · Page 14Linked to original sources

Biochemical evaluation of succinic acid therapy in urolithiasis.

Reports of Melon et al. [7] and Hodgkinson [4] regarding the efficacy of succinic acid or its derivative (salt) in reducing the endogenous synthesis of oxalate are conflicting. The possible application of succinic acid as a potential inhibitor of oxalate synthesis, and the biochemical alterations resulting therein, has been studied in 10 idiopathic stone-forming patients (6 primary stone-formers and 4 recurrent stone-formers) and in 21 normal adult rats. In rats no significant changes in oxalate excretion were observed during the 4 weeks of succinic acid administration (500 mg/100 g BW/day) and 2 weeks therafter. In the clinical trial of 3 months, where stone-formers were given 20 g/day of succinic acid, the post-therapy values of urinary oxalate excretion showed a singificant drop ( less than 0.001) as compared with those of pretherapy--recurrent stone-formers showing a more marked decrease (63%) than primary stone-formers (49%).

Animals↗

Nature of histamine receptors concerned in capillary permeability.

1 Histamine and 2-methyl-histamine (H1-receptor agonist) caused dose-dependent increases in capillary permeability in albino mice, but 4-methyl-histamine (H2-receptor agonist) caused no significant increase. 2 Mepyramine (H1-receptor antagonist) blocked the histamine-induced increase in capillary permeability whereas burimamide (H2-receptor antagonist) produced no significant blockade of the histamine-response. 3 Combined mepyramine and burimamide pretreatment did not give any significantly greater protection than mepyramine alone. 4 The results indicate involvement of the H1-receptors in histamine-induced increase in capillary permeability.

Animals↗

New indolic cysticidal agents.

From a series of compounds having amino acid esters linked into the 3 position of substituted indole 3-acetic acids only the compounds 2 and 6 have shown promizing biological activity where as compound 2 process excystment property only, compound 6 has shown both excystment and cysticidal properties. All other compounds are inactive.

Amebicides↗