1.A Case of an Atypical Carcinoid Tumor Arising in Ulcerative Colitis.
Yong Hee JOUNG ; Hyo Jong KIM ; Kyeong Jin KIM ; Seok Ho DONG ; Yun Hwa KIM ; Byung Ho KIM ; Young Woon CHANG ; Jung Il LEE ; Ju Hue LEE ; Ring CHANG
Korean Journal of Gastrointestinal Endoscopy 2000;20(3):213-217
Ulcerative colitis is a chronic inflammatory bowel disease manifested by diffuse continuous mucosal and submucosal inflammation. Adenocarcinoma of the colon may be complicated in the long-standing, extensive ulcerative colitis. But the case of an atypical carcinoid tumor arising in the chronic ulcerative colitis has been very rarely reported. A case was experienced involving a 54-year-old woman with chronic ulcerative pancolitis that was complicated by an atypical carcinoid tumor of the sigmoid colon. A small, flat, elevated lesion was found at the sigmoid colon, 8 years after the initial diagnosis of ulcerative colitis had been made. The microscopic finding of the lesion showed the nest of moderately differentiated, medium sized cells with large nuclei. The immunohistochemical stains for cytokeratin, NSE, chromogranin A, and synaptophysin were positive.The patient was treated with a total colectomy accompanied with an ileostomy, and is now in a very favor able state of recovery.
Adenocarcinoma
;
Carcinoid Tumor*
;
Chromogranin A
;
Colectomy
;
Colitis, Ulcerative*
;
Colon
;
Colon, Sigmoid
;
Coloring Agents
;
Diagnosis
;
Female
;
Humans
;
Ileostomy
;
Inflammation
;
Inflammatory Bowel Diseases
;
Keratins
;
Middle Aged
;
Synaptophysin
;
Ulcer*
2.Anthocyanins from Clitoria ternatea Attenuate Food-Borne Penicillium expansum and its Potential Application as Food Biopreservative.
Chean Ring LEONG ; Muhammad Afif KAMARUL AZIZI ; Md Abu TAHER ; Suzana WAHIDIN ; Kok Chang LEE ; Wen Nee TAN ; Woei Yenn TONG
Natural Product Sciences 2017;23(2):125-131
Clitoria ternatea or Commonly known blue pea, is a perennial climber crop native to Asian countries. The current study was aimed to evaluate the antimicrobial activity C. ternatea extract on food borne microorganisms and its antifungal effect on Penicillium expansum. The extract showed significant antimicrobial activity against 3 Gram positive bacteria, 2 Gram negative bacteria and 1 filamentous fungus on disc diffusion assay. The extract also showed good biocidal effect on all Gram positive bacteria tested and P. expansum. However, the kill curve analysis revealed that the fungicidal activity of the extract against P. expansum conidia was depend on the concentration of the extract and the time of exposure of the conidia to the extract. The scanning electron micrograph of the extract treated P. expansum culture showed alterations in the morphology of fungal hyphae. The germination of P. expansum conidia was completely inhibited and conidial development was totally suppressed by the extract, suggesting the possible mode of action of anthocyanin. Besides, the extract also exhibited 5.0-log suppression of microbial growth relative to control in the rice model. The results indicate the potential use of the C. ternatea anthocyanin as food biopreservative.
Anthocyanins*
;
Asian Continental Ancestry Group
;
Clitoria*
;
Diffusion
;
Fungi
;
Germination
;
Gram-Negative Bacteria
;
Gram-Positive Bacteria
;
Humans
;
Hyphae
;
Peas
;
Penicillium*
;
Spores, Fungal