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PHARMACOGNOSY

Pharmacognostic studies of 99 drugs have been carried out since inception upto 2004-2005 according to the scheduled proforma of CCRAS for the assigned drugs with regards to their origin, source, botanical identification and nomenclature. Sanskrit/Hindi synonyms, regional/vernacular names, Ayurvedic uses of drug, properties, action and clinical uses in Ayurveda and Siddha, parts used and studied, present status of drug, review of previous work, macroscopic characters, microscopic characters of the parts studied, distribution, collection, propagation, quantitative value, cell content, powder drug study, behaviour of powder with different reagents, phytochemical studies, diagnostic characters, substitutes and adulterants, chemistry/pharmacology reported in the literature (review), commercial material samples and their sources etc.

The important drugs studied include Asparagus racemosus Willd.(Shatavari) , Putikaranja, Nyctanthes arbor tristis L (Parijata), Durva, Arka, Aloe barbadensis Mill (Kumari), Holarrhena antidysenterica Wall. (Kutaja), Ajakarna, Shigru, Akroda, Agastha, Adhaki, Clitoria ternatea L. (Aparajita), Typha australis Schum. & Thonn. (Gundra), Adhatoda zeylanica Medic (Vasa), Pongamia pinnata (L.) Pierre.(Karanja), Caesalpinia bonduc (L.) Roxb.(Latakasturika), Kadamba, Shankhapushpi, Punica granatum L. (Dadima), Ficus hispida L. (Kakoudumbara), Bimbi, Sakotaka, Ajagandha, Dugdhika, Saptala, Jalapippali, Bhumyamalki, Mudagaparni, Madhavi, Lakoocha, Draksha, Bala, Atibala, Swarnaksiri, Medasaka, Rajadani, Amra, Champaka, etc. Out of these detailed monographs on Pharmacognosy of Shatavari, Punarnava, Lajjalu, Musta, Jalapippli, Bharangi - Clerodendrum serratum (Linn) Moon , Bhumyamalaki etc. were compiled.

Data on some of these drug's studies have been published, viz. Dioscorea hispida (Yam.), Lavendula bipinnata O. Ktze., Solanum violaceum Ortege (Brahati), Mucuna pruriens(L.) DC. (Kapikachhchu), Phyla nodiflora (L.) Greene (Jalapippali), Phyllanthus fraturnus Webst, (Bhumyamalki), Raphanus sativus Linn. (Mulaka), Sida cordifolia Linn. (Bala), Diospyros perigrina Gaertn. (Tinduka) etc.

Powder microscopy and Thin Layer Chromatography profile study of fourty out of fifty crude drugs from allocated programme projection 2003-2008 have been completed. These drugs were Amalki – Emlica officinalis Gaertn.- Fruit pulp (fresh and dried), Arka- Calotropis procera (Ait.)R Br.- Root and Leaf, Atibala- Abutilon indicum (Linn.) sweet – Root, Babbula – Acacia nilotica (Linn.) Willd – stem bark and Gambhari- Gmelina arborea Roxb. – Root. Microscopic and TLC profile of 13 drugs have been completed in the year 2005 – 2006 namely, Aragwadha – Cassia fistula Linn - fruit pulp, Ashoka – Saraca asoca Linn – Stem bark, Ashwagandha – Withania somnifera Dunal – Root, Asvattha – Ficus religiosa Linn. – Stem bark, Atasi- Linum usitatissimum Linn-Seed, Bakuchi- Psoralea corylifolia Linn. – Fruit, Bibhitaka – Terminalia belerica Roxb. – Fruit – pulp, Bilva- Aegle marmelos Corr. – Fruit pulp, Candrasura – Lepidium sativum Linn. – Seed, Dhanyaka- Coriandrum sativum Linn.-Fruit, Dhataki – Woodfordia fruiticosa (L.) Kurz. – Flower, Gokshura- Tribulus terrestris Linn.-Fruit and Guduchi- Tinospora cordifolia (Willd) Miers –Stem and powder microscopy along with thin layer chromatography profile study of 12 drugs have been completed.

PLANT TISSUE CULTURE: Plant Tissue culture - An over view
The thrust of research is to bring the technique of Plant Tissue Culture in the development of procedures for regeneration, development of elite plants, micro propagation of endemic and endangered medicinal plant species, embryo rescue and somatic embryogenesis.

Mission and goals:
Improvement of plantation of medicinal plants.
Micro propagation and somatic embryogenesis of the medicinal plants.
Tissue culture of rare and endangered taxa.
Ex situ conservation of endemic and economically important plants.
Resource generation from sale of tissue cultured medicinal plants
Area of research/Ongoing activities on medicinal plants:
At present protocol establishment of following important medicinal plants is in progress.
Bharangi - Clerodendrum serratum (Linn) Moon
Dhumrapatra - Aristolochia bracteata Retz-
Ishwari - Aristolochia indica Linn.
Kumkum – Crocus sativus Linn.
Manjishtha - Rubia cordifolia Linn.
Patala- Stereospermum suveolens DC
Protocols on following important medicinal plants have been completed so far:
Banafsha - Viola serpens Wall.
Brahmi - Bacopa monnieri (L.)Pennell
Jyotishmati - Celastrus paniculatus Willd.
Kutaj – Holarrhena antidysenterica Wall.
Patha – Cissampelos pariera L.
Prasarini - Paederia foetida Linn.
Prishniparni – Uraria picta (Jacq.)
Sariva - Hemidesmus indicus R.Br.
Shalparni – Desmodium gangeticum (L.)DC
Shatavari – Asparagus racemosus Willd. Shyonaka – Oroxylum indicum (L.)
Trivrit - Operculina turpethum Silva Manso

Biochemistry

Studies on Structural and Functional Aspects of Human Telomeric RNA proteins: Telomeres act as caps at the ends of chromosomes, which is essential for chromosome stability. Telomerase is an RNA dependent DNA polymerase which appropriately maintains the telomeres during normal cell division to counterbalance the natural shortening that occurs during replication. Therefore, telomerase regulation is a critical step in tumorigenesis and aging. Telomerase activity is found to be up-regulated in more than 90% of human tumors as well as in stem cells and germ lines. The reports indicate that telomere stabilization is a requisite step for tumor development. Although the importance of telomerase expression in tumor development is established, little is known about the mechanisms involved. The aim of the lab is to deliver an integrated, multidisciplinary analysis of the molecular mechanisms of telomerase which will have significant medical implications in cancer and aging.

Main objectives to find out that

(1) How proteins in telomerase complex interact and assemble and

(2) How do the different components of the complex regulates of telomerase function.

The objectives will be directed towards applications of telomerase targets for the discovery of compounds leading to the development of specific drugs to cure associated diseases. Functional Genomics and Proteomics of Ayurvedic Management of Obesity with special reference to Tridosha Prakriti Concept: After completion of human genome project; proteomics or functional genomics remains important. Out of 30,000 genes identified in human genome till date function of merely 40% genes is known. Association studies involving patients and healthy controls are popularly done with advanced techniques such as SNP mapping and gene expression microarrays. Research in Ayurveda mainly focused on drug development and not much attention was given to explore science behind fundamental principles of Ayurveda. In this project our focus is to study differential display of genes/mRNA and proteins in Tridosha Prakriti (Vataj, Pitaj and Kaphaj). Besides exploring the molecular mechanisms of ayurvedic treatment in obesity this project is expected to provide gene and protein signatures for prakritis and identify mechanism of action of ayurvedic treatment in obesity.
























 



































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