The antibiogram activity of ethanolic and aqueous extract of E.hirta  was studied. Ethanol extract of the plant showed the maximal antibacterial activity and G.C Analysis showed the presence of citronellal. The extract showed inhibited the growth of E.coli, S.aureus, P.aeruginosa, Proteus,  etc.,

Antidiabetic and antihyperlipidemic effect of Hemidesmus indicus  Linn.R.root. (HIR) was investigated in rats. Administration of HIR (40 mg/g body weight/day) for four weeks significantly decreased the serum cholesterol, triglyceride, free fatty acids and phospholipid. Four weeks treatment of diabetic rats with HIR (40 mg/g body weight/day) showed significant hypoglycemic effect. Results of the present study show that HIR has hypocholesterolemic and antidiabetic effects.

The ethanolic extract of Pleurotus florida  was studied for its free radical scavenging property on different in vitro models like 1,1 -diphenyl-picryl hydrazyl (DPPH)Assay, Ferric Reducing Antioxidant Power (FRAP) assay and in vitro  antilipidperoxidative assay using goat liver homogenate and RBC Ghost model .The in vitro  Lipid peroxidation (LPO) was inhibited to a good extent by the Pleurotus florida  ethanolic extract and the extent of inhibition being higher in the RBC membrane model than the liver homogenate model. The mushroom extract showed good dose-dependent free radical scavenging property in both the models.

Lycianthes bigeminata  Bitter (Solanaceae) is an important medicinal herb distributed in the sholas of Nilgiris and chiefly used for curing ulcer. It is reported that the species is present in the sholas with poor population size in comparison to other constituent species. Owing to the demand and subsequent exploitation, it is predicted that it may occupy still poor association in the sholas of Nilgiris in course of time. Hence in vitro  regeneration through employing tissue culture technique is needed. The preliminary attempt in the present study reports that the MS medium supplemented with Benzyl Amino Purine (BAP) and Naphthalene Amino Acid (NAA) at 0.5 mg/l each, induced effective callus formation. However further studies on hardening is suggested to know the survivability of this species

Nerium indicum  [Family:Apocynaceae] is commonly known as Arali [Tam] found throughout India, and has been used in the treatment of cancer, cardiotonic, leprosy and skin diseases. Plant parts such as root, bark and leaves are used. The present study is therefore undertaken to analyse its phyto chemical constituents in solvents like Benene, Chloroform and Alcohol and to screen its antibacterial activity. The dried leaf sample is extracted with solvents by cold maceration. The phytochemical analysis showed the presence of Alkaloids, Terpenoids, Cardiac glycosides, Saponins, Tannins & Carbohydrates in all the solvents. All the extracts were screened for antibacterial activity by Disc Diffusion Method. Out of the cultures used Staphylococccus aureus, Pseudomonas aeruginosa and Salmonella typhimurium  showed better zone of inhibition which is 10mm, 9mm & 7 mm respectively.

Hypolipidemic effect of Samai (.i.e. Panicum miliare) on selected fifty cardiovascular patients were studied for a period of sixty days (25 control; 25 supplemented with Samai). Lipid profiles were analyzed before and after supplementation period for both control and experimental group. It was heartwarming to note that all the lipid values with the exception of HDL - cholesterol had reduced after supplementation with Samai and the reductions were statistically significant at 1 per cent level. There was a mild increase in the HDL cholesterol level, which was desirable.

Ayuveda "the science of life" deals with various dimensions of human being. In this age old science, psychological factors have been given equal importance as physiological factors in the etiology of various diseases. Though there are so many rejuvenation therapies, Achara Rasayana is mainly advocated for psychosomatic disorders. Chittodvega (anxiety neurosis) is one among those psychological diseases in which, the code of conduct (Achara Rasayana) plays an important role in both etiology as well as treatment. Here an attempt has been taken to clarify the role of Achara Rasayana in the disease Chittodvega.

The microscopic and macroscopic characters of the rhizome of Curcuma domestica Val. were studied. The behavior of the powdered drug in the presence of various chemicals was also studied. Preliminary phytochemical screening on the various extracts of the rhizome was done in order to ascertain the various chemical constituents present. These studies were carried out to identify this plant for future research work.

Moringa concanensis  Nimmo (Moringaceae) is one of the important medicinal plant. It is restricted in its distribution. The present study was aimed at recording traditional knowledge about this plant in various localities of Perambalur district, Tamilnadu. The medicinally useful part, drug preparation, mode of administration and the disease which can be treated have been discussed in this paper.