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( 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.
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.
Gandhi, Sakthivel,Kumar, Prem,Thandavan, Kavitha,Jang, Kiwan,Shin, Dong-Soo,Vinu, Ajayan The Royal Society of Chemistry 2014 NEW JOURNAL OF CHEMISTRY Vol.38 No.7
<P>A successful method has been demonstrated for the synthesis of a mesoporous organic–inorganic nanohybrid using amine functionalized polyhedral oligomericsilsesquioxane (POSS) and pluronic polymer as a silica precursor and structure directing agent, respectively. The results confirmed the presence of porous structure, along with the high surface area and uniform pore size distribution which can be utilized for various applications namely catalysis, drug-delivery, <I>etc.</I></P> <P>Graphic Abstract</P><P>A novel mesoporous silica with high surface area and ordered porosity has been developed using <I>N</I>-methylamino POSS and dichloromethylsilane. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c4nj00292j'> </P>