1. In vitro antioxidant activity and total phenolic content of endophytic fungi isolated from Eugenia jambolana Lam.
Manila YADAV ; Amita YADAV ; Jaya Parkash YADAV
Asian Pacific Journal of Tropical Medicine 2014;7(S1):S256-S261
Objective: To elucidate the antioxidant activity and total phenolic content (TPC) of ethyl acetate extracts of endophytic fungi isolated from Eugenia jambolana by three different antioxidant assays. Methods: Twenty one different endophytic fungal extracts were screened for presence of various phytochemicals, TPC and in vitro antioxidant activity. TPC was tested by Folin-Ciocalteau reagent based assay. DPPH free radical scavenging, hydrogen peroxide scavenging and reducing power assays were used to evaluate the antioxidant activity. Results: Alkaloids, phenols, flavonoids, saponins, and terpenes were the main phytochemicals presents in all 21 endophytes. A significant positive correlation was found between antioxidant activity and TPC in fungal extracts. There is 36% endophytic extracts having high phenolic content exhibited potent antioxidant activity. Chaetomium sp., Aspergillus sp., Aspergillus peyronelii and Aspergillus niger strain showed the highest antioxidant activity ranging from 50% to 80% having 58 mg/g to 60 mg/g GAE total phenolics. Ascorbic acid used as a standard showed 90% reducing potential. Conclusions: The results reveal that metabolites produced by endophytic fungi isolated from Eugenia jambolana can be a potential source of novel natural antioxidant compounds.
2.Dedifferentiated Chondrosarcoma of the Rib Masquerading as a Giant Chest Wall Tumor in a Teenage Girl: An Unusual Presentation.
Viju Joseph ABRAHAM ; Sanjeev DEVGARHA ; Rajendra Mohan MATHUR ; Anula SISODIA ; Amita YADAV
The Korean Journal of Thoracic and Cardiovascular Surgery 2014;47(4):427-430
Chondrosarcoma of the chest wall is a rare primary neoplasm found to occur in elderly men. Patients present with an enlarging, painful, anterior chest wall mass arising from either the vicinity of the costochondral junction or the sternum. Treatment includes wide resection with appropriate chest wall reconstruction. We report an unusual presentation of this uncommon tumor occurring as a huge chest wall mass in a young teenage girl.
Aged
;
Chondrosarcoma*
;
Female
;
Humans
;
Male
;
Ribs*
;
Sternum
;
Thoracic Wall*