• Preventive Nutrition and Food Science
• /
• 제18권3호
• /
• pp.175-180
• /
• 2013

The purpose of this study was to determine the effects of a pre-exercise meal on the plasma human growth hormone (hGH) response and fat oxidation during walking. Subjects (n=8) were randomly provided with either 1 g/kg body weight of glucose in 200 mL water (CHO) or 200 mL water alone (CON) 30 min prior to exercise and subsequently walked on a treadmill at 50% of VO2max for 60 min. Plasma hGH concentrations were significantly higher in subjects who received CHO compared to those who received CON at 15 and 30 min. The fat oxidation rate in the CHO was significantly lower than the CON while walking for 5~15, 25~35 and 45~55 min. Plasma FFA levels were also significantly lower in the CHO compared to the CON at 30, 45 and 60 min. Plasma glucose levels in the CHO were significantly lower while plasma insulin levels were significantly higher than in the CON at 15 and 30 min. Therefore, the results of this study suggest that the elevation of plasma hGH levels due to the intake of a pre-exercise meal may not be strongly related to fat oxidation and plasma free fatty acid (FFA) levels during low-intensity exercise.

• Journal of Korean Neurosurgical Society
• /
• 제29권6호
• /
• pp.754-762
• /
• 2000

Objectives : The surgical results of 80 patients with growth hormone(GH)-producing pituitary adenoma were analyzed retrospectively to evaluate the clinical manifestations and to determine which preoperative factors significantly influenced the surgical outcome. Patients and Methods : The patients consisted of 39 men and 41 women and the age of patients at the time of initial operation ranged from 17 to 67 years(mean age, 40.5 years) Between January 1990 and June 1996, 77 patients underwent transsphenoidal surgery and 3 patients underwent craniotomy for GH-producing pituitary adenoma at our institution. Preoperative administration of octreotide was performed in 18 patients. Surgical control was defined as a postoperative serum basal level of GH less than 5ng/ml. A logistic regression model was used for univariate and multivariate analysis. Probability value of less than 0.05 was considered as statistically significant. Results : The most common presenting symptom was acromegaly, followed by headache, visual disturbance, and fatigability. Visual symptoms were present in 39% of the patients. Diabetes mellitus was associated in 24 patients and hypertension in 12. Preoperative mean basal level of GH was 93.2ng/ml(range 72-500ng/ml) which was closely related with tumor size(p<0.05). Grade II by Hardy's classification was the most common radiological type. Preoperative octreotide treatment significantly reduced the level of GH(p<0.05), but not enough to induce endocrinological remission. One patient died of cerebral infarction after craniotomy. The most common surgical complication was transient diabetes insipidus. The symptom of the earliest improvement after surgery was paresthesia and tightness of the hand and foot, followed by headache and easy fatigability. The preoperative visual symptom was improved in all patients. The patients who had hypertension or DM experienced alleviated symptoms in 67% and 92%, respectively. The overall rate of endocrinological remission was 44%. By multivariate logistic regression analysis, the size of tumor, extrasellar extension, and extent of removal were significant prognostic factors for endocrinologial remission. Conclusion : Early detection of a small tumor without extrasellar extension followed by a complete resection is highly recommended in order to achieve endocrinological cure of GH-producing pituitary adenomas.

• Journal of Animal Science and Technology
• /
• 제44권6호
• /
• pp.693-700
• /
• 2002

한우 종모우에 있어 소 성장호르몬 유전자의 출현빈도를 알아보고 소 성장호르몬 다형과 정액성상과의 관계를 살펴보기 위하여 실시하였다. 한우 종모우 109두의 소 성장호르몬 유전자를 Alu I 제한효소로 처리하여 PCR-RFLP로 분석하였다. Leucine(Leu)과 valine(Val) 유전자의 출현빈도는 각각 0.88과 0.12이었다. 소 성장호르몬 VV 유전자형을 지닌 한우 종모우가 다른 유전자형을 지닌 종모우보다 정액성상(정액량, 정자농도, 총정자수)이 떨어지는 경향을 보였지만 소 성장호르몬의 유전자형이 정액성상에 유의적인 영향은 미치지 못하였다. 채취순번에 따른 영향에 있어서도 VV 유전자형을 지닌 종모우가 다른 유전자형을 지닌 종모우보다 정액성상이 떨어지는 경향을 보였지만 유의적인 차이는 나타내지는 못하였으며 다만 년도에 따른 영향에 있어 1998년도 VV 유전자형을 지닌 종모우가 다른 유전자형을 지닌 종모우보다 총정자수에 있어 유의적으로 적게 나타났다(P<0.05). 전체적으로 소 성장호르몬 유전자의 VV 유전자형을 지닌 종모우의 정액성상이 다른 유전자를 지닌 종모우의 정액성상보다 낮은 경향을 보였지만, 조사한 109두의 한우 종모우 중 VV 유전자형을 지닌 종모우가 1두로 분석되어 이 종모우의 정액성상만을 이용하여 소 성장호르몬 유전자다형이 정액성상에 미치는 영향을 살펴보았기에 종모우 선발시 기초자료로 이용하기에는 추가적인 시험이 필요할 것으로 사료된다.

• 한국가축번식학회지
• /
• 제21권2호
• /
• pp.197-205
• /
• 1997

Improved hypophysectomy technique and the efficacy of bGH in hypophysectomized female rats were studied as a basis for the function of endocrine gland and hormones. 1. With improved sublaryngeal a, pp.oach by hypophysectomy, 34 rats out of 40 were successfully hypophysectomized(more than 80% of success). The surgical time for hypophysectomy per rat was taken about 3.0$\pm$1.0 min. 2. For the effect of hypophysectomy and bGH on body weight gain among the 5 gruops of A, B, C, D, and E, the weight gains for A, B, C, D, and E, were 93g, 9.2g, 10.7g, 25.1g and 36.2g, respectively, which implied that hypophysectomy had a major effect on body weight. And also, the effect of bGH was paralleled with the level of bGH. There were significant difference between control and hypophysectomized groups, and between the bGH treated and bGH non-treated groups after hypophysectomy(p<0.01). 3. For the effect of hypophysectomy and bGH on the length of femur, tibia, humerus, and anterbrachi, longest was for A, shortest for B, and longer in order of C, D, and E. The A group was significantly longer than B, C, D, and E groups. The B group was shorter than C, D, and E groups(p<0.01). 4. For the effect of hypophysectomy and bGH on the weight of femur, tibia, humerus, and antebrachi, heaviest was for A, lightest for B, and heavier in order of C, D, and E. The A group was significantly heavier than B, C, D, and E groups. The B group was lighter than C, D, and E groups(p<0.01). 5. In changes of body length, and weights of liver and heart, A group was most drastically increased. Among the hypophysectomized groups, the change was increased in order of B, C, D, and E. Especially, the change of A group was significantly greater than B, C, D and E gruops. However, no significant differences were found among B, C, D, and E groups. 6. The hypophysectomy in rat had a significant effect on body growth. The effect of hormone was remarkably different depending upon the level of hormone. It was found that 300$\mu\textrm{g}$ of bGH/kg of body wt/day was slightly lower for normal growth.

• Clinical and Experimental Pediatrics
• /
• 제49권3호
• /
• pp.312-316
• /
• 2006

목 적 : 만삭 부당경량아로 출생하여, 2세까지 성장의 따라잡기가 이루어지지 않은 저신장증 환아들은 성인 신장치가 작을 가능성이 많으므로 성장호르몬의 치료가 필요하다. 본 연구의 목적은 만삭 부당경량아로 출생하여 5세가 지나서도 따라잡기 성장을 하지 못한 저신장증 상태의 환아에서 성장호르몬 치료효과를 평가하고자 하였다. 방 법 : 연구대상은 본원에서 저신장증으로 성장 호르몬 치료를 받은 환아중 만삭 부당경량아의 출생력이 있는 환아 26명을 대상으로 하였으며, 대조군은 만삭 부당경량아로 출생하였으며, 추적시 저신장이고 성장호르몬 치료를 받지 않은 환아 14명을 대상으로 하였다. 성장호르몬의 치료 효과를 평가하기 위해 성장호르몬 치료 전후의 신장 표준편차값 변화와 같은 기간내 대조군의 표준편차값 변화를 비교하였다. 결 과 : 환자군과 대조군 간에는 재태 주령, 출생체중, 나이, 최종 예측치 신장, 추적관찰 기간에 있어서는 차이가 없었으나, 치료 시작 전의 신장 표준편차값은 대상군이 $-3.3{\pm}0.9$, 대조군이 $-2.4{\pm}0.4$로 환자군이 의미 있게 작았다(P<0.05). 치료 전후 신장 표준편차값의 변화는 환자군이 $1.2{\pm}1.0$, 대조군이 $0.5{\pm}0.6$으로 성장호르몬 치료를 받은 환자군에서 신장의 변화값이 높게 나타났다(P<0.05). 성장호르몬 치료를 받은 환자군에서 지질검사를 포함한 생화학 검사는 치료 시작 전후를 비교하였을 때, HDL-콜레스테롤이 $48.5{\pm}9.9mg/dL$에서 $56.1{\pm}8.7mg/dL$로 증가하였으며(P<0.05), LDL-콜레스테롤은 $88.1{\pm}23.3mg/dL$에서 $76.4{\pm}19.4mg/dL$로 감소하였다(P<0.05). 총콜레스테롤과 중성지방, 유리 지방산 및 공복시 혈당은 의미있는 변화는 없었다. 또한 치료 전후의 인슐린양 성장 인자-I 농도는 $224.9{\pm}191.3{\mu}g/L$에서 $443.2{\pm}152.5{\mu}g/L$로 증가하였으며, 인슐린양 성장 인자 결합 단백-3 농도는 $3.7{\pm}1.3mg/L$에서 $5.6{\pm}1.2mg/L$으로 의미 있게 증가하였다(P<0.05). 결 론 : 성장호르몬 치료는 만삭 부당경량아로 출생한 환아들의 저신장증 치료에 효과적이고 안전한 방법으로 사료된다.

• Clinical and Experimental Pediatrics
• /
• 제54권2호
• /
• pp.55-63
• /
• 2011

Prader-Willi syndrome (PWS) is a complex multisystem genetic disorder that is caused by the lack of expression of paternally inherited imprinted genes on chromosome 15q11-q13. This syndrome has a characteristic phenotype including severe neonatal hypotonia, early-onset hyperphagia, development of morbid obesity, short stature, hypogonadism, learning disabilities, behavioral problems, and psychiatric problems. PWS is an example of a genetic condition caused by genomic imprinting. It can occur via 3 main mechanisms that lead to the absence of expression of paternally inherited genes in the 15q11.2-q13 region: paternal microdeletion, maternal uniparental disomy, and an imprinting defect. Over 99% of PWS cases can be diagnosed using DNA methylation analysis. Early diagnosis of PWS is important for effective long-term management. Growth hormone (GH) treatment improves the growth, physical phenotype, and body composition of patients with PWS. In recent years, GH treatment in infants has been shown to have beneficial effects on the growth and neurological development of patients diagnosed during infancy. There is a clear need for an integrated multidisciplinary approach to facilitate early diagnosis and optimize management to improve quality of life, prevent complications, and prolong life expectancy in patients with PWS.

• 한국양식학회지
• /
• 제16권1호
• /
• pp.51-58
• /
• 2003

The first Indian transgenic fish was generated in 1991 using borrowed constructs from foreign sources. To construct transformation vectors for the indigenous fishes, growth hormone genes of rohu (r-CH), Labeo rohita and catfish, Heteropneustes fossilis were isolated, cloned and sequenced; their fidelity was confirmed in prokaryotic and eukaryotic systems. A vector was constructed with grass carp b-actin promoter driving the expression of r-GH. Rohu eggs are large. fragile and swell 2~3 times. when fertilized. Hence they were amenable only for electroporated sperm-mediated gene transfer. Accordingly, the sperm electroporation technique was standardized to ensure 25% hatchling survival and 37% Presumptive transgenics without suffering any deformity. Southern analysis confirmed genomic integration in 15% of the tested individuals (Ti) belonging to family lines 2 and 3: another 25% of the Juveniles (Te) were also proved transgenic but with the transgene persisting extrachromosomally for longer than 1 to 2 years. perhaps due to the presence of replicon in the vector. Transgenics belonging to different family lines grew 6~8 times faster than the respective controls. Difference in growth trends of Ti and Te within a family line was not significant. In the Ti family 3 remarkable growth acceleration was sustained for a period longer than 36 weeks but in those of family 2, it gradually decreased. All transgenic fishes including the rohu converted the food at a significantly higher efficiency. Barring the transgenic mudloach, all the other transgenic fishes consumed food at significantly reduced rate.

• 대한소아치과학회지
• /
• 제36권1호
• /
• pp.139-144
• /
• 2009

Growth hormone insensitivity(GHI) 증후군은 Laron에 의해 처음 보고된 질환으로 성장 호르몬 결핍증과 유사하게 악악면 양상과 심각한 성장 지연을 보이지만, 이와는 달리 혈중 성장호르몬은 정상이거나 증가되어 있고 혈중 Insulin like growth factor-I(IGF-I)과 성장 호르몬 결합 단백질은 감소되어 있는 특징을 보인다. 이 중에서 원발성으로 GHI 증후군을 보이는 경우를 라론 증후군으로 분류하고 있으며, 세계적으로 약 200여 증례가 보고되고 있으나, 치의학적인 보고는 극히드물다. 본 증례는 라론 증후군을 보이는 두 증례를 관찰한 바 작은 두개저와 상하악골, 왜소치, 구근상 치관, 침상 치근 등의 치아형태 이상 등의 다양한 구강 악안면 이상을 보였기에 이를 보고하는 바이다.

• Asian-Australasian Journal of Animal Sciences
• /
• 제19권8호
• /
• pp.1090-1094
• /
• 2006

Histone acetylation modification is one key mechanism in the regulation of gene activation. In this study, we investigated the global levels of histone H4 acetylation of insulin like growth factor I (IGF1) and growth hormone (GH) genes in the lungs of two somatic cell cloned calves. Data showed the levels of histone H4 acetylation of IGF1 and GH genes vary widely within different gene regions, and, in almost all regions of the two genes, acetylation levels are lower in the aberrant clone than in the normal clone. Thus we suggest that inefficient epigenetic reprogramming in the clone may affect the balance between acetylation and deacetylation, which will affect normal growth and development. These findings will also have implications for improvement of cloning success rates.

• Clinical and Experimental Pediatrics
• /
• 제46권8호
• /
• pp.803-810
• /
• 2003

목 적 : 특발성과 기질성 성장호르몬 결핍증 환자에서 성장호르몬 치료 후 최종 성인신장과 총신장(SDS) 증가 그리고 이에 영향을 미치는 인자에 대해 알아보고자 하였다. 방 법 : 1990년부터 2000년까지 서울대학병원 소아과에 내원하여 성장호르몬 결핍증으로 진단되어 성장호르몬 치료를 받은 후 최종 성인신장에 도달한 환자를 대상으로 하였다. 특발성 GHD 3명(남 : 여, 11 : 2)과 기질성 GHD 22명(남 : 여, 12 : 10)에게 성장호르몬을 각각 $0.62{\pm}0.15IU/kg/wk$, $0.52{\pm}0.11IU/ kg/wk$ 용량으로 $3.2{\pm}2.4$년 동안 일주일에 3-7회 피하주사하였다. 결 과 : 1) 치료 시작 전 신장표준편차점수는 특발성 GHD 군에서는 $-4.13{\pm}1.28$, 기질성 GHD 군에서는 $-1.66{\pm}1.06$으로 특발성 GHD 군이 의미 있게 작았으며, 특발성 GHD 군에서 골연령 또한 역연령에 비해 $5.2{\pm}2.9$년 정도로 지연되어 있었다. 2) 치료 첫해 성장속도는 특발성 GHD 군에서 $9.69{\pm}3.19cm$, 기질성 GHD 군에서는 $7.87{\pm}3.65cm$이었다. 3) 사춘기 시작시 신장은 특발성 GHD 군에서 $-2.28{\pm}0.95$ SDS, 기질성 GHD 군에서는 $-0.55{\pm}1.25$ SDS이었다. 4) 최종 성인신장은 특발성 GHD 군에서 $-1.44{\pm}0.84$ SDS, 기질성 GHD 군에서는 $0.22{\pm}1.06$ SDS로 두 군 모두에서 치료 시작시 신장 SDS에 비하여 유의하게 증가되었다. 기질성 GHD 군에서 최종 성인신장이 더 컸으며, 두 군 모두에서 최종 성인신장은 사춘기 시작시의 신장과 깊은 연관 관계가 있었다(특발성, r=0.616, P<0.05; 기질성 r=0.830, P<0.001). 5) 총신장(SDS) 증가는 특발성 GHD 군에서 $2.69{\pm}1.36$으로 기질성 GHD 군($1.88{\pm}1.16$)보다 컸으나, 통계적 유의성은 없었다. 총신장(SDS) 증가는 두군 모두에서 성장호르몬 치료 시작시 신장 SDS가 중간부모신장 SDS에 비하여 작을수록 더 컸으며, 특히 기질성 GHD군에서는 치료 시작시 역연령에 비하여 골연령이 어릴수록, 사춘기전 신장(SDS) 증가가 클수록 더 컸다. 결 론: 특발성 GHD 환자에서 기질성 GHD 환자보다 최종 성인신장이 작았다. 성장호르몬에 의한 신장증가 효과는 치료 전 신장이 중간부모신장에 비하여 작을수록 컸으나, 절대적 최종 성인신장은 사춘기 시작 시 신장과 가장 깊은 관련이 있어, 조기진단 후에 적절한 용량의 성장호르몬으로 꾸준히 치료하여 사춘기가 나타나기 전까지 충분한 신장의 증가를 유도하여야만 만족할만한 최종 성인신장을 얻을 수 있을 것으로 생각된다.