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Kannan, Thandavan Arthanari,Ramesh, Geetha,Ushakumary, S.,Dhinakarraj, Gopalan,Vairamuthu, Subbiah Korean Society of Animal Science and Technology 2015 한국축산학회지 Vol.57 No.10
The present study was aimed to study the light and electron microscopic studies of thymic Hassall's corpuscles was done in various age groups of Nandanam Chicken ranging from day-old to forty weeks. Hassall's corpuscles are special, unique structures present in thymic medulla and also in the cortex of all the age groups of Nandanam chicken (from hatch to forty weeks) in the present study. Size of the Hassall's corpuscles in the medulla is larger than the ones present in the cortical region of thymus. The Hassall's corpuscles are made up of structureless eosinophilic mass surrounded by concentrically arranged reticuloepithelial cells. Under electron microscope, the Hassall's corpuscles were composed of reticuloepithelial cells interconnected by many desmosomes. The epithelial cells had abundance of cytoplasmic fibrils and desmosomes with few mitochondria and ribosomes. The nucleus was oval or round which was slightly indented. The centre of the Hassall's corpuscles was appeared either solid or cystic. The cystic corpuscles had cell debris within the cyst lumen.
( Thandavan Arthanari Kannan ),( Geetha Ramesh ),( S. Ushakumary ),( Gopalan Dhinakarraj ),( Subbiah Vairamuthu ) 한국동물자원과학회(구 한국축산학회) 2015 한국축산학회지 Vol.57 No.30
The present study was aimed to study the light and electron microscopic studies of thymic Hassall``s corpuscles was done in various age groups of Nandanam Chicken ranging from day-old to forty weeks. Hassall``s corpuscles are special, unique structures present in thymic medulla and also in the cortex of all the age groups of Nandanam chicken (from hatch to forty weeks) in the present study. Size of the Hassall``s corpuscles in the medulla is larger than the ones present in the cortical region of thymus. The Hassall``s corpuscles are made up of structureless eosinophilic mass surrounded by concentrically arranged reticuloepithelial cells. Under electron microscope, the Hassall``s corpuscles were composed of reticuloepithelial cells interconnected by many desmosomes. The epithelial cells had abundance of cytoplasmic fibrils and desmosomes with few mitochondria and ribosomes. The nucleus was oval or round which was slightly indented. The centre of the Hassall``s corpuscles was appeared either solid or cystic. The cystic corpuscles had cell debris within the cyst lumen.
Toxicity Studies on Peristrophe paniculata (Forssk) Brummitt-an Ayurveda Drug.
R.V. Pradeep Chandran,A. Saraswathy,B. Murali Manohar,S. Vairamuthu 한국생약학회 2008 Natural Product Sciences Vol.14 No.2
Chronic oral toxicity studies (90 days) on aqueous and methanol extracts of the whole plant of Peristrophe paniculata (Forssk) Brummitt were carried out in Wistar rats. The dosage was 200 mg/kg/day, p.o. for both the extracts. All external morphological and biochemical changes, in addition to body weight and vital organ weights were recorded. During this investigation, no significant mortality was observed. The results showed that both the extracts were devoid of any toxicity at the dose level studied as compared to the control group.
Wound Healing Activity of the Chloroform Extract of Plumbago rosea Linn. and Plumbagin
A. Saraswathy,R.V. Pradeep Chandran,B. Murali Manohar,S.Vairamuthu 한국생약학회 2006 Natural Product Sciences Vol.12 No.1
wound healing activity of plumbagin and the chloroform extract of Plumbago rosea Linn. (Yoot),incorporated into ointments with yellow soft paraffin, have been investigated on rats. Wound healing activity wasstudied using excision and incision wound models in rats following topical application. Both plumbagin and thePlumbago rosea root extract produced a significant response in both of the wound models studied. The woundPlumbago rosea root extract (0.5%),as against in 22 days in the case of control animals. The results were also comparable to those of a standard drug,framycetin sulphate cream (1% w/w) in terms of wound contracting ability, wound closure time, tensile strengthof wound and regeneration of tissues at the wound site. Histological studies revealed evidences for the healingprocess by formation of fibrovascular tissue, epithelization and increased collagenization when compared tocontrol.Keywordswound healing activity, Plumbago rosea, plumbagin, Plumbaginaceae