• 정신신체의학
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• 제7권2호
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• pp.149-157
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• 1999

인간은 에너지 섭취와 소모에 있어 변동이 심한 편이지만 비교적 일정한 체중을 유지하고 적절하게 섭식행동을 조절한다. 그러나 이러한 조절기전에 문제가 발생하면 비만이나 그 이외의 다른 섭식장애를 일으키게 되며 다양한 후유증을 야기한다. 본 논문에서는 최근에 소개되기 시작한 호르몬인 leptin이 섭식의 조절과 에너지의 항상성을 조절하는데 있어 어떻게 중요한 작용을 하게되는지 조사하여 주로 정신과 영역에서 관심을 기울일 만한 부분에 대해 고찰하고자 한다. Leptin이 처음 발견되었을 때 그 역할은 주로 음식의 섭취를 제한하고 에너지의 소모를 증가시키는 호르몬으로 소개되었지만, 점차 그 이외의 다른 신체 기능 즉, 생식주기나 신경대분기계에도 영향을 미치는 것으로 보고되면서 정선과 영역에서 차지하는 비중도 확대되고 있다. 그러나 leptin의 작용기전은 매우 복잡하며 많은 부분이 아직도 불분명한 상태에 있다. 이에 저자들은 중추신경계에서 현재까지 알려진 leptin의 작용기전에 대해 살펴보고 섭식과 관련된 그 밖의 다른 신경전달물질들과의 상호작용 그리고 섭식장애와의 관련성에 대해서 최근 문헌들을 조사하여 함께 고찰하고자 한다.

• 정신신체의학
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• 제7권2호
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• pp.241-246
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• 1999

섬망은 두부손상, 혈관성 질환, 뇌종양 등의 중추신경계 질병뿐 아니라 여러 가지 신체 질병(대사 장애 및 내분비장애, 감염, 심혈관 질병)과 약물에 의해 야기되는 각성 수준의 감퇴, 지남력 장애, 수면-각성 주기 장애, 기억력 장애, 지각장애 등을 특징으로 하는 증후군이다. 1) 섬망을 일으킬 수 있는 약물의 하나인 scopolamine(Kimite$^{(R)}$)은 차멀미 예방을 위해 흔히 사용되며 피부 부착형으로 사용하는데 항콜린성 작용을 갖는belladonna akaloid제제이다. 저자들은 차멀미 예방 목적으로 사용된 transdermal scopolamine(Kimite$^{(R)}$)으로 유발된 섬망 2례를 경험하였기에 이를 문헌 고찰과 함께 보고하였다. 두 증례의 공통점은 여자 노인 환자였다는 점, 멀미 예방을 위해 transdermal scopolamine부착 후 여행지에서 갑자기 증상이 발생하였다는 점, 증상이 2~3일이내에 호전되어 추적 관찰상 아무런 이상이 없었던 점 등이다. Transdermal scopolamine(Kimite$^{(R)}$)으로 인한 섬망의 예방을 위해 사용자와 판매자 모두에게 올바른 사용법에 관해 교육하는 것이 필요할 것으로 사료된다.

• 대한수의학회지
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• 제38권2호
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• pp.246-257
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• 1998

Endocrine cells in the thymus of duck(Anas platyrhynchos platyrhyncos, Linne) were studied immunohistochemically from 23 days of incubation to 32 weeks of age. Somatostatin-, growth hormone(GH)-, gastrin/cholecystokinin(Gas/CCK)-, polypeptide YY(PYY)-, S-100 protein(S-100 P)-, dopamine-, serotonin(5-HT)-, and bovine chromogranin (BCG)-immunoreactive cells were detected in the duck thymus by the PAP techniques. These immunoreactive cells were observed in the medulla and in the juxtacortical medulla. No immunoreactivity of calcitonin and bovine pancreatic polypeptide(BPP) antiserum were observed. The argyrophil cells by Grimelius techniques were observed from 23 days of incubation to 32 weeks of age and peaked in 5 weeks of age. In the early develpmental stage, the argyrophil cells were distributed only in the medulla, while these cells were distributed mainly in the medulla and a few cells were distributed in the corticomedullary junction from 3 weeks of age. These immunoreactive cells were generally round, oval and elliptical and occasionally spindle, polygonal and polymorphous with the long cytopslasmic processes in shape. The present study suggests that the intrathymic endocrine cells may associate with the functional maturation of T-lymphocytes on the establishment of immunity. The further study will be needed to elucidate the function of these thymic endocrine cells.

• Journal of Acupuncture Research
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• 제20권2호
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• pp.135-144
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• 2003

Objective : The purpose of this study is To investigate the effects of acupuncture and moxibustion at Zusanli(ST36) and Weishu(BL21) Methods : serum gastrin level by radioimmunoassay was measured at 5 days after acupuncture and moxibustion of those acupoints. Gastric endocrine cell(G cell and Histamine immunoreactive density) by avidin-biotinylated complex(ABC) technique, histological examinations(Alcian Blue-PAS Stain; Alcian blue-Periodic Acid Schiff reagent) of the gastric mucosa were also performed. Acupuncture applied to the ST36 acupoint increased gastrin level of serum, but moxibustion did not produced significant effect. All of acupuncture and moxibustion at BL21 acupoint increased gastrin level of serum significantly. In moxibustion at ST36 and BL21, the number of gastrin secreting cells in gastric mucosa, the density of immunoreactive histamin secreting cells and the density of body mucosa stained by PAS were decreased compare to acupuncture at ST36 and BL21. In acupuncture and moxibustion at BL21, the density of pylorus mucosa stained by PAS were increased compare to the groups applied to ST36. In the density of body mucosa stained by AB, moxibustion at BL21 and ST36 were increased compare to the other groups. Results : These data suggest that acupuncture and moxibustion at BL21 increased gastrin level of serum and those effects were more potent than acupuncture at ST36.

• 동의생리병리학회지
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• 제16권6호
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• pp.1170-1176
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• 2002

We examined the effects of Whadamcheongwha-tang(WDCWT) extract on the acetic-acid induced antigastric ulcer in rats. These experiments investigated the numerical changes of gastrin and histamine secreting cells of the gastric mucosa by immunohistochemical method, and the changes of mucin of gastric mucosa by PAS-AB stain methods after the oral administration of WDCWT extract(1.0ml/day) and omeprazole(0.2mg/day) for 1, 3 and 6 weeks. The result are as follows; 1. When WDCWT extract was administrated for 1, 3, 6 weeks, in result, gastrin secreting cells in gastric mucosa were increased compared to the control group. 2. When WDCWT extract was administrated for 1, 3, 6 weeks, in result, the density of immunoreactive gastrin cells was increased compare to the control group. 3. When WDCWT extract was administrated for 1, 3, 6 weeks, in results, the changs of mucosal thickness stained by PAS/PAS-AB was increased compared to the control group. 4. When WDCWT extract was administrated for 1, 3, 6 weeks, in results, the density of PAS stain was decreased compare to control group, but density of AB stain was increased compare to control group. The results suggest that WDCWT extract inhibits a gastric acid secretion in rat gastric mucosa, and is useful in the treatment of the hyperacidity and gastric ulcer.

• Toxicological Research
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• 제20권3호
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• pp.205-211
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• 2004

Concern that some chemicals in our environment may affect human health by disrupt-ing normal endocrine function has prompted a research on interactions of environmental contaminants with steroid hormone receptor. Toxaphene and chlordane are among the 12 persistent organic pollutants identified by the United Nations Environment Programme as requiring urgent attention. We compared the estrogenic activity of two organochlorine pesticides, toxaphene and chlordane, at estrogen receptor a (ER$\alpha$) and estrogen receptor $\beta$ (ER$\beta$). Human hepatoma cells (HepG2) were transiently transfected with rat ER$\alpha$ or ER$\beta$ plus an estrogen-responsive complement C3-luciferase (C3-Luc) reporter gene. After transfection, cells were treated with various concentrations of toxaphene and chlordane to investigate agonism or antagonism of these chemicals. Both toxaphene and chlordane were potent agonists in HepG2 cells for ER$\alpha$. In contrast, these chemicals had a minimal agonist activity with ER$\beta$ and almost abolished 17$\beta$-estradiol-induced ER$\beta$-mediated activity. Therefore, toxaphene and chlordane behaved as an ER$\alpha$ agonist and an ER$\beta$ antagonist with estrogen-responsive reporter plasmid C3-Luc, and exposure to these organochlorine pesticides could have a crictical effect on normal endocrine function.

• 대한유전성대사질환학회지
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• 제4권1호
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• pp.23-29
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• 2004

시스틴증은 상염색체 열성으로 발생하는 매우 드문 용해소체 축적병으로서, 용해소체 막을 통한 시스틴 운반의 장애로 발생한다. 용해소체 내 시스틴의 축척과 결정화에 의해 전신의 여러 조직에 파괴가 진행되어 성장 장애, Fanconi 증후군, 신부전, 눈의 이상, 내분비 질환 등이 나타난다. 치료제인 cysteamine의 투여가 예후를 향상시킬 수 있으므로 조기 진단과 치료가 중요하다. 저자들은 성장 장애를 주소로 내원한 12세 남아에서 slit-lamp 검사와 혈액 백혈구 시스틴 농도 측정을 통하여 시스틴증을 확진하고 cysteamine 치료를 시행하면서 추적 관찰 중이다.

• Toxicological Research
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• 제18권4호
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• pp.331-339
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• 2002

Phenoxy compounds, 2,4-Dichlorophenol acetoxy acid (2,4-D) and 2,4-dichlorophenol (DCP), are widely used as a hormonal herbicide and intermediate for pesticide manufacturing, respectively. In order to assess the potential of these compounds as endocrine disruptors, we studied the androgenicity of them wing in vivo and in vitro androgenicity assay system. Administration of 2,4-D (50 mg/kg/day, p.o.) or DCP (100 mg/kg/day, p.o.) to rats caused an increase in the tissue weight of ventral prostate, Cowpers gland and glands penis. These increase of androgen-dependent tissues were additively potentiated when rats were simultaneously treated with low dose of testosterone (1 g/kg, s.c.). 2,4-D increased about 350% of the luciferase activity in the PC cells transiently cotransfected phAR and pMMTV-Luc at concentration of $10^{-9}$ M. In 2,4-D or DCP-treated castrated rats, testosterone 6$\beta$-hydroxylase activity was not significantly modulated even when rats were co-treated with testosterone. In vitro incubation of 2,4-D and DCP with microsomes at 50 $\mu$M inhibited testosterone 6$\beta$-hydroxylase activity about 27% and 66% in rat liver microsomes, about 44% and 54% in human liver microsomes and about 50% and 45% in recombinant CYP3A4 system, respectively. The amounts of total testosterone metabolites were reduced about 33% and 75% in rat liver microsomes, 69% and 73% in human liver microsomes and 54% and 64% in recombinant CYP3A4 by 2,4-D or DCP, respectively. Therefore, the additive androgenic effect of 2,4-D or DCP by the co-administration of the low dose of testosterone may be due to the increased plasma level of testosterone by inhibiting the cytochrome P450-mediated metabolism of testosterone. These results collectively suggested that 2,4-D and DCP may act as androgenic endocrine disrupter by binding to the androgen receptor as well as by inhibiting the metabolism of testosterone.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• 제14권1호
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• pp.86-90
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• 2011

구리를 운반하는 P형 ATPase 단백을 합성하는 ATP7B 유전자의 돌연변이로 인하여 간, 뇌, 각막, 신장 및 적혈구 등 여러 조직에 구리가 축적되어 발병하는 상염색체 열성 유전 질환인 윌슨병은 간 증상과 신경증상이 주요 증상이지만 이외에도 용혈성 빈혈, 심장, 신장 및 내분비 이상 증상을 초래할 수 있다. 저자들은 윌슨병으로 진단되어 치료 받던 중 부갑상샘의 구리 침착에 의한 것으로 추측되는 부갑상샘저하증, 여러 복합요인에 의한 비타민 D 결핍 그리고 원인이 불명확한 저마그네슘혈증으로 인하여 발생한 테타니를 칼슘, 마그네슘 및 비타민 D 투여로 치료하였던 1예를 경험하였기에 보고하는 바이다.

• 대한수의학회지
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• 제38권3호
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• pp.614-628
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• 1998

The effects of electroacupuncture(EA) on blood concentration of endocrine substances were investigated in 6 horses. Three acupuncture points ; Guan Yuan Shu(BL-26), Wei Shu(BL-21) and Da Chang Shu(BL-25) were stimulated for 20 minutes by EA at separate occasions under varying condition ; 2V-1Hz, 2V-5Hz, 2V-30Hz, 4V-1Hz, 4V-5Hz and 4V-30Hz. Plasma levels of adrenocorticotropic hormone(ACTH), ${\beta}$-endorphin, epinephrine, norepinephrine and serum levels of gastrin were analysed. Blood samplings were carried out before, 0, 20 and 40 minutes after the EA stimulation. The serum gastrin levels were increased by 2V-5Hz stimulation on the Wei Shu. Plasma ACTH levels were decreased by 2V-1Hz stimulation on the Wei Shu, but largely increased by 4V-30Hz stimulation on the Guan Yuan Shu. Plasma ${\beta}$-endorphin levels were slightly increased or decreased by 2V-1Hz stimulation, but largely increased by 4V-30Hz stimulation on the Guan Yuan Shu. Plasma levels of epinephrine and norepinephrine were not so much changed by 2V-1Hz or 5Hz stimulation, but tended to increase by 4V-30Hz stimulation on Guan Yuan Shu. These results suggest that the low voltage-low frequence EA stimulation increased blood concentration of gastrin, but decreased ACTH, ${\beta}$-endorphin, epinephrine and norepinephrine, whereas high voltage-high frequence EA stimulation induced opposite results. Accordingly, there appears to be a close relationship between the changes of gastrointestinal motility and the changes of blood concentration of endocrine substances by EA stimulation.