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성장호르몬결핍성 환아에서 약물자극분비된 성장호르몬과 야간 3시간 자연분비된 성장호르몬과의 연관성
오필수,신재훈,차재국,김기중 대한내분비학회 1998 Endocrinology and metabolism Vol.13 No.1
Nowadays, to evaluate growth hormone(GH) deficiency-suspicious short stature, we usually use more than two kinds of provocative tests using various pharmacologic agents such as clonodine, L-dopa, insulin, etc. However, the importance of physiologic natural secretion of GH was recently approved. In the past, diagnosis of GH neurosecretory dysfunction was made by studying the 24-hour spantaneous GH secretion profile. But, because it is very clinically difficult, and so we measured and evaluated the mean GH concentrations of blood samples, obtained every 30 minutes during the first 3 hours' nocturnal sleep, instead of that. At the department of Pediatrics, Hanyang University Hospital from November, 1992 to February, 1994, we selected 34 GH deficiency-suspected children on the base of their growth data and bone age, etc. After GH stimulation with clonidine(100-150 ug/m2) and L-dopa(200-250 mg/m2), we measured their peak GH values by the immunoradiometric assay(IRMA) kit. And, we measured the mean GH concentrations of blood samples, obtained every 30 minutes during the first 3 hours noctumal sleep(22:OOPM-1:OOAM). Results: 1. We analyzed the relationship between the mean of 3-hours' physiologic night-time surge of GH(X) and the phamacologically stimulated peak GH level(Y), except for the two neurosecretory dysfunction suspicious children. And so, for the 32 children, the relationship was Y=1.806X+ 3.177, r= 0.794, p$lt;0.01. However, for all the tested children(34), the relationship is Y=1.709X+ 4.06, r=0.737, p$lt;0.01. 2. We analyzed the relationship between the peak of 3-hours' physiologic night-time surge of GH(X) and the phamacologicaUy stimulated peak GH level(Y), except for the two neurosecretory dysfunction suspieious children. And so, for the 32 children, the relationship was Y=0.683X+ 3.686, r=737, p$lt;0.01. Conelusion: For all the tested children(34), the relationship between the mean 3hr physiologic GH night time surge and stimulated peak GH value is Y=1.709X+4.06, r=0.737, p$lt;0.01. The percentage of GH neurosecretory dysfunction is 5.8%(2/34). And, except for the two childrren, the relationship is more good, Y=1.806X+3.177, r=0,794, p$lt;0.01. On the above relationship, the 3-hour GH night time-surge test might to give us some helpful information for the diagnosis of neurosecretory dysfunction. (J Kor Soc Endocrinol 13:16-23, 1998)
진균류의 Ubiquinone system의 분포에 관한 연구
박주영,정지국,신용국,조월순,서필수,박용하,이재동,Park, Ju-Young,Chung, Ji-Won,Shin, Yong-Kook,Jo, Wol-Soon,Seo, Pil-Soo,Park, Yong-Ha,Lee, Jae-Dong 한국생명과학회 1998 생명과학회지 Vol.8 No.1
Isoprenoid quinone are essential compositions of the respiratory or photosynthetic electron transport system of microorganisms. Their chemotaxonomic significance as well as their physiological importance has been fully realized. We determined the ubiquinone types of the genus Trichoderma, Gliocladium, Verticillium, Aspergillus, and several mushroom such as Agaricus bisporus. Lentinus edodes, Pleurotus ostreatus, Flammulina velutips, Phellinus chrysoloma, Phellinus igniarius and Phellinus laevigatus. Most of Deuteromycotina had Q-10($H_2$), and all of mushroom had Q-9 as main ubiquinone type. Ubiquinone type in other fungal taxa. Isoprenoid quinones은 미생물의 호흡계나 관합성의 전자전달계의 필수적인 구성성분으로, 그들의 화학적분류 뿐만 아니라 생리학적인 중요성으니 충분히 인식되어 있다. 본실험에서는 Trichoderma, Gliocladium, Verticillium, Aspergullus 및 Agaridus bisporus, 및 Agaricus biporus, Lenrinus edodes, Pleurotus ostrearus igniarius, Phellinus chrysolona를 포함한 일부 식용버섯의 ubiquinone type을 결정하였다. 대부분의 불완전균휴는 Q-10($H_2$)를, 본 실험에 사용된 식용버섯 전체는 Q-9을 main ubipuinone type을 가지는 것으로 나타났다. 따라서 upiquinone type은 진균류에 있어서도 화학적 분류의 유용한 수단으로 간주되며, 보다 광범위한 연구결과의 축척이 필요한 것이다.
인진쑥 추출물이 다이옥신계 TCDD (2,3,7,8-Tetrachlorodibenzo-p-dioxin)에 노출된 흰쥐의 간 기능 및 지질대사에 미치는 효과
이준호,장춘뢰,필수초,황석연,Lee, Joon Ho,Zhang, Chun Lei,Bi, Shou Chao,Hwang, Seok Youn 한국영양학회 2013 Journal of Nutrition and Health Vol.46 No.3
This study was conducted in order to investigate the effects of Artemisia capillaris (AC) extract on disorders of hepatic functions and lipid metabolism induced by 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), an endocrine disrupter, using male rats (SD, five weeks old) for a period of three weeks. These 37 animals were divided into four groups. AC extract was added as 1.5% or 3% levels to basal diets, respectively. TCDD (40 ug/kg B.W) was administered by intraperitoneal injection into rats after a week from the beginning of the experiment. AC extract alleviated the increase of rat's relative liver weights induced by TCDD. Thymuses of all rats treated with TCDD were apparently shrunken by approximately 80%. Levels of white blood cells (WBC), red blood cells, hemoglobin, and hematocrits were significantly increased by treatment with TCDD, however, WBC tended to decrease by AC extract diets. In hepatic function, the elevation of glutamic oxalacetic transaminase activities by TCDD treatment was diminished by AC extract diets. Serum HDL-cholesterol levels were significantly elevated by AC extract diets. The apparent increase of triglyceride levels of rat livers induced by TCDD was significantly suppressed in the AC extract diet groups. Hepatic cytosolic catalase activities significantly decreased by treatment with TCDD showed a recovering trend by AC extract diets. In histochemical observation, the fat droplets and apoptosis of hepatocytes treated with TCDD were markedly alleviated by AC extract diets. These results indicated that AC could exert recovering effects on some disorders of hepatic functions, lipids metabolism, and antioxidant activities resulting from TCDD treatment.