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삼채의 잎, 인경, 뿌리의 총페놀 함량, 총플라보노이드 함량 및 항산화능
황정승(Jeong-Seung Hwang),이봉한(Bong Han Lee),안향설(Xiangxue An),정하람(Ha Ram Jeong),김영은(Young-Eun Kim),이인일(Inil Lee),이형재(Hyungjae Lee),김대옥(Dae-Ok Kim) 한국식품과학회 2015 한국식품과학회지 Vol.47 No.2
삼채의 잎, 인경, 뿌리 세 부위를 물, 메탄올-물 혼합용매, 무수 메탄올을 이용하여 추출물을 제조한 후, 총페놀 함량, 총플라보노이드 함량 및 항산화능을 정량 분석하였다. 삼채의 부위별 총페놀 함량은 잎이 240.4-276.6 mg GAE/100 g FW, 인경이 65.5-82.8 mg GAE/100 g FW, 뿌리가 50.0-59.4 mg GAE/100 g FW를 보였다. 삼채의 부위별 총플라보노이드 함량은 잎에서 9.7-34.1 mg CE/100 g FW, 인경에서 5.0-16.7 mg CE/100 g FW, 뿌리에서는 4.4-15.3 mg CE/100 g FW로 나타났다. ABTS법, DPPH법, ORAC법을 통한 항산화능은 잎에서 각각 78.7-103.4, 24.4-59.0, 1,798.8-2,169.7 mg VCE/100 g FW, 인경에서는 35.8-51.1, 9.3-26.3, 415.3-611.7 mg VCE/100 g FW, 뿌리에서는 42.0-55.9, 12.8-24.4, 291.7-429.4 mg VCE/100 g FW을 보였다. 삼채 잎, 인경, 뿌리 중에서 잎이 가장 높은 총페놀 함량, 총플라보노이드 함량 및 항산화능을 가졌다. 6가지 추출용매에서 60% (v/v) 메탄올-물 혼합용매에서 주로 높은 활성을 나타냈다. 항산화능은 총플라보노이드 함량보다 총페놀 함량과 더 높은 상관관계를 보였다. 본 연구의 결과는 삼채가 높은 항산화능 공급할 수 있는 원료로서의 가능성을 보여 주었다는데 의의가 있다. To quantitatively evaluate the total phenolics, total flavonoids, and antioxidant capacity in the leaves, bulbs, and roots of fresh Allium hookeri, they were extracted using various solvents including water, aqueous methanol (20, 40, 60, and 80%; v/v), and absolute methanol. The leaves had the highest levels of total phenolics (240.4-276.6 mg gallic acid equivalents/100 g) and total flavonoids (9.7-34.1 mg catechin equivalents/100 g). The highest antioxidant capacities of 78.7-103.4 mg vitamin C equivalents (VCE)/100 g, 24.4-59.0 mg VCE/100 g, and 1,798.8-2,169.7 mg VCE/100 g in the leaves were also observed using 2,2-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), 2,2-diphenyl-1-picrylhydrazyl (DPPH), and oxygen radical absorbance capacity (ORAC) assays, respectively. The total phenolics had a higher linear correlation with antioxidant capacity than the total flavonoids. In general, 60% (v/v) aqueous methanol extract had higher levels of total phenolics and flavonoids, and higher antioxidant capacity than any other solvents used. This study suggested that A. hookeri might be a good source of phenolics and antioxidants.
Immunogold법에 의한 한국재래산양 샘뇌하수체의 성샘자극세포에 관한 연구
이인세,이흥식,송승훈,윤성태,황인구,서제훈,강태천,원무호,Lee, In-se,Lee, Heungshik S.,Song, Seung-hoon,Yoon, Sung-tae,Hwang, In-koo,Seo, Je-hoon,Kang, Tae-cheon,Won, Moo-ho 대한수의학회 1999 大韓獸醫學會誌 Vol.39 No.5
There have been a number of studies of gonadotropes secreting LH and FSH in the adenohypophysis, but the pattern of hormone storage and secretion of these cells still remains a controversial matter. In this study, we examined whether gonadotropes contained both of LH and FSH, and if so, how these hormones were distributed within the secretory granules. Hypophyseal sections of Korean native goat were simultaneously immunostained for LH and FSH antisera by protein A-gold technique. It was found that most gonadotropes contained both FSH and LH, but hormone storages in the secretory granules were some different among cells. Three types of gonadotropes were identified by the shape and size of the secretory granules and their hormone storage patterns. One type(I) of gonadotropes contained oval secretory granules, which immunoreactivity for FSH and LH were very weak. The size of secretory granules ranged from 160 to 310nm in diameter. Most granules contained both FSH and LH, but some contained only one of them. In another type(II) of gonadotropes, the immunreactivity and hormone storage patterns of the secretory granules were similar to those of type I cells. However, the secretory granules were round in shape and larger in size than those of type I. The other gonadotropes(type III) were distinctly distinguished by plenty of hormones in their secretory granules which were densely packed with numerous immunolabelled gold particles. These data are some inconsistent with other results that have been obtained in other ruminants like as cattle and sheep.
한국재래산양 십이지장의 장관신경계통에 분포하는 Substance P, CGRP 및 칼슘결합단백질 반응세포에 대한 면역조직화학적 연구
이인세,이흥식,송승훈,윤성태,황인구,강태천,원무호,서제훈,Lee, In-se,Lee, Heungshik S.,Song, Seung-hoon,Yoon, Sung-tae,Hwang, In-koo,Kang, Tae-cheon,Won, Moo-ho,Seo, Je-hoon 대한수의학회 1999 大韓獸醫學會誌 Vol.39 No.3
The localization of substance P(SP), calcitonin gene-related peptide(CGRP) and three calcium binding proteins, calbindin D-28k(CB), calretinin(CR) and parvalbumin(PA) was immunohistochemically examined in the myenteric and submucous plexuses of Korean native goat duodenum. In the neurons of myenteric and submucous plexuses of duodenum, immunoreactivities of SP, CGRP and CB were confirmed in both nerve cell bodies and fibers. In contrast, CR immunoreactivity was found only in nerve fibers of myenteric plexuses, while PA immunoreactivity was found only in nerve cell bodies of submucous plexuses. In the inner circular muscle layer, dense SP-like immunoreactive fibers were prominent but only a few CGRP-like immunoreactivities were observed. Most of SP- and CGRP-like immunoreactive neurons of both plexuses colocalized with CB. This result showed that SP and CGRP may have a important role for the movement of small intestine. The colocalizations of CB with SP or CGRP in myenteric and submucous plexuses suggest that CB may serve neuromodulatory role for SP- and CGRP-immunoreacted neurons on the movement of intestinal wall.
백년초의 PC-12 신경세포 보호 및 콜린가수분해효소(cholinesterase) 저해 효과
황정승(Jeong-Seung Hwang),임성빈(Sungbin Im),이인일(Inil Lee),김태락(Tae-Rahk Kim),김대옥(Dae-Ok Kim) 한국식품과학회 2016 한국식품과학회지 Vol.48 No.1
백년초를 80% (v/v) 에탄올-물 혼합용액으로 추출하여 총페놀 함량, 총플라보노이드 함량, 산화방지능, 신경세포 보호효과, AChE 및 BChE 활성저해능을 평가하였다. 백년초 100 g FW당 총페놀함량은 409.9 mg GAE, 총플라보노이드 함량은 72.2 mg CE이었다. 백년초(100 g FW)의 산화방지능은 ABTS, DPPH, ORAC법에서 각각 381.2, 298.2, 3,219.9 mg VCE였다. 백년초 추출물은 H₂O₂의 산화 스트레스로부터 세포 내 산화 스트레스를 감소시켜 신경세포 PC-12의 생존율을 농도의존적으로 증가시켰다. 또한, 백년초 추출물은 AChE 및 BChE 활성을 저해하였다. 본 연구 결과로부터 백년초의 세포 내 산화 스트레스 감소에 의한 신경 세포 보호능과 AChE 및 BChE 저해능이 확인 되었으며, 이러한 결과를 통해 향후 백년초를 이용한 기능성 제품 및 여러 가공품 개발에 활용이 가능할 것으로 기대한다. Oxidative stress caused by reactive oxygen species is ascribed to many neurodegenerative diseases like Alzheimer’s disease. Phenolic antioxidants can reduce the oxidative stress. In this study, ripe fruits of Opuntia ficus-indica var. saboten (OFS) were extracted using 80% (v/v) aqueous ethanol. Total phenolic and flavonoid contents of the OFS fruits (100 g) were 409.9 mg gallic acid equivalents and 72.2 mg catechin equivalents, respectively. The OFS fruits had antioxidant capacity at 381.2, 298.2, and 3,219.9 mg vitamin C equivalents/100 g in ABTS, DPPH, and ORAC assays, respectively. The OFS fruits showed protective effects on PC-12 cells against oxidative stress in a dose-dependent manner, partly due to decrease of intracellular oxidative stress. Furthermore, the OFS fruits inhibited both acetylcholinesterase and butyrylcholinesterase. Consequently, these results suggest that the OFS fruits might be served as a source of functional materials to reduce oxidative stress in neuronal cells and to inhibit cholinesterases.
난치성 두드러기환자에서 발견된 위, 결장에서 발생된 동시성 이중암
이인정 ( In Joung Lee ),강혜련 ( Hye Ryun Kang ),김주희 ( Joo Hee Kim ),한보람 ( Bo Ram Han ),서진원 ( Jin Won Seo ),박성훈 ( Sung Hoon Park ),황용일 ( Yong Il Hwang ),장승훈 ( Seung Hun Jang ),김동규 ( Dong Gyu Kim ),정기석 ( Ki 대한천식알레르기학회 2009 천식 및 알레르기 Vol.29 No.3
Chronic urticaria is a common disabling skin condition. Neoplasm has been case-reported as a comorbid disease with urticaria, although there is no reliable evidence suggesting a strong association between these two conditions. We recently experienced a case of chronic urticaria revealing double primary cancers. A 47-year-old woman was referred to our hospital for chronic generalized urticaria which had started 3 months earlier. She was treated with a combination of oral methylprednisolone, hydroxyzine, mequitazine, fexofenadine, ketotifen, ranitidine, and pranlukast. Nevertheless, her skin lesion did not completely subside. She had a family history of early-onset adenocarcinomas of the stomach and the colon. On gastroscopy and colonoscopy, she was diagnosed with signet ring cell type adenocarcinoma and moderately differentiated adenocarcinoma, respectively. Her urticaria disappeared immediately after radical resection of double primary malignancies, and she became free of urticaria without any medications. Considering the time sequence, malignancies were highly suspicious as a cause of her urticaria. (Korean J Asthma Allergy Clin Immunol 2009;29:208-211)