• 제목/요약/키워드: Corticotropin-releasing factor

검색결과 40건 처리시간 0.023초

Peripheral Insulin Doesn't Alter Appetite of Broiler Chicks

  • Liu, Lei;Xu, Shaohua;Wang, Xiaojuan;Jiao, Hongchao;Lin, Hai
    • Asian-Australasian Journal of Animal Sciences
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    • 제29권9호
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    • pp.1294-1299
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    • 2016
  • An experiment was conducted to investigate the effect of peripheral insulin treatment on appetite in chicks. Six-d-age chicks with ad libitum feeding or fasting for 3 h before injection received a subcutaneous injection of 0, 1, 3, 5, 10, or 20 IU of insulin or vehicle (saline). The results showed peripheral insulin treatment (1 to 20 IU) did not alter significantly the feed intake in chicks under either ad libitum feeding or fasting conditions within 4 h (p>0.05). Compared with the control, plasma glucose concentration was significantly decreased after insulin treatment of 3, 5, 10, and 20 IU for 4 h in chicks with ad libitum feeding (p<0.05). In fasted chicks, 10 and 20 IU insulin treatments significantly decreased the plasma glucose level for 4 h (p<0.05). Peripheral insulin treatment of 10 IU for 2 or 4 h did not significantly affect the hypothalamic genes expression of neuropeptide Y, proopiomelanocortin, corticotropin-releasing factor and insulin receptors (p>0.05). All results suggest peripheral administration of insulin has no effect on appetite in chicks.

시호(柴胡)와 산장(酸漿) 복합제가 LPS로 유도된 우울증에 미치는 효과 (Effect of Mixture extracted from Bupleuri Radix and Physalidis Herba on the LPS-induced depression in Rats)

  • 이원행;김도훈;이태희
    • 대한본초학회지
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    • 제30권3호
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    • pp.69-76
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    • 2015
  • Objectives : The effect of mixture extracted from Bupleuri Radix and Physalidis Herba(BR+RH) on the LPS-induced Depression in rats was investigated. Methods : Rats were administered intragastrically BR+PH after injectio of LPS to induce deprssion. Immobility was examined using Tail Suspension Test(TST), Forced Swimming Test(FST). The level of plasma corticosterone was measured by an Enzyme-Linked Immunosorbent Assay(ELISA) method. The expressions of c-Fos, Corticotropin Releasing Factor(CRF), NADPH-d in the Paraventricular nucleus(PVN) and TH in the Locus coeruleus(LC) were measured by immunohistochemical method. Results : In the effect of BR + PH on TST, immobility was significantly decreased comparing with the LPS group. In FST, immobility was shown decrease tendency in the BR+PH group. The expression of c-Fos in the PVN was significantly decreased at BR + PH400 group, comparing with the LPS group. The expression of CRF in PVN was shown dto have the decrease tendency in the BR+PH group, comparing with the LPS group. The expression of NADPH-d in PVN was not significantly decreased at BR+PH groups, comparing with the LPS group. The expression of TH in the LC was shown to have the decrease tendency at BR + RH groups, but not significantly, comparing with the LPS group. Conclusions : Anti-depressant effect of mixture after extracted from Bupleuri Radix and Physalidis Herba was through the anti-inflammatory effect via inhibition of HPA axis. NO and catecholamine system is not involved.

시호(柴胡)와 지골피(地骨皮) 합제(合劑)가 강제수영부하실험에서 HPA Axis와 카테콜라민 시스템에 미치는 영향 (Effects of Mixture of Bupleuri Radix and Lycii Radicis Cortex on the Change of HPA-Axis and Catecholamic System in the Forced Swimming Test)

  • 조은호;이태희
    • 대한한의학방제학회지
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    • 제19권1호
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    • pp.161-174
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    • 2011
  • Objectives : The effects of Extraction after Mixture of Bupleuri Radix and Lycii Radicis Cortex on the change of the HPA-Axis system and the Catecholamic system was investigated. Methods : After performing the Forced Swimming Test(FST), the expressions of corticotropin releasing factor(CRF), c-Fos in the paraventricular nucleus(PVN), and tyrosine hydroxylase(TH) in the ventral tegmental area(VTA) and locus coeruleus(LC) were measured by immunohistochemical method. Results : The duration of immobility in FST was significantly decreased in A 100(Extraction after Mixture of Bupleuri Radix and Lycii Radicis Cortex, 100mg/kg) and A 400(Extraction after Mixture of Bupleuri Radix and Lycii Radicis Cortex, 400mg/kg)(p<0.001). The expression of CRF in the PVN was shown the tendency to reduce in A100 and A400. The expression of c-Fos in the PVN was shown the tendency to reduce in A100 and A400. The expression of TH in the VTA was shown the tendency to reduce mildly in A100 and A400. The expression of TH in the LC was significantly reduced in A400(p<0.001). And the dose dependent reduction tendency was shown, respectively. Conclusions : According to the results above mentioned, the immobility, c-Fos and CRF expression was reduced at lower dose and was increased at higher dose. Therefore there is contradictory effects on the HPA Axis system in accordance with the dose. But in the effects on the catecholaminergic system, it significantly reduced the expression of TH in the LC. It was validated that the effect on the catecholaminergic system was ruled by Bupleuri Radix rather than Lycii Radicis Cortex via mainly the noradernergic system.

청피(靑皮)와 지골피(地骨皮) 복합제(複合劑)가 강제수영부하실험에서 CRF, c-Fos와 TH의 변화에 미치는 영향 (Effects of Mixture of Citri Peticulatae Viride Pericarpium and Lycii Radicis Cortex on the Change of HPA-Axis and Catecholamic System in the Forced Swimming Test)

  • 박수현;이태희
    • 대한본초학회지
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    • 제25권2호
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    • pp.117-128
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    • 2010
  • Objectives : In this study the antidepressant effects of mixture of Citri Peticulatae Viride Pericarpium and Lycii Radicis Cortex on the change of HPA-Axis and Catecholamic system was investigated Methods : The forced swimming test(FST) was performed. The expression of corticotropin-releasing factor(CRF), c-Fos in the paraventricular nucleus(PVN), and tyrosine hydroxylase(TH) in the ventral tegmental area(VTA) and locus coeruleus(LC) was measured with immunohistochemical method and the concentration of seum adrenocorticotropic hormone(ACTH) was measured with ELISA method. And the experimental groups were divided into the extraction after mixing(A) and mixture after extraction(B). The effects of both group were compared. Results : The duration of immobility in the forced swimming test was significantly decreased in the A400 group(P<0.01). The expression of CRF in PVN were significantly reduced in the A100, A400, B100, B400groups(P<0.001). but the expression of c-fos in PVN weren't reduced in all groups. And the concentration of ACTH in Plasma were significantly reduced in the A 100 group(P<0.01). The expression of TH in LC were significantly reduced in the A 400, B 100 and B400 groups(P<0.05~P<0.01). Conclusion : Mixture of Citri Peticulatae Viride Pericarpium and Lycii Radicis Cortex has antidepressant effects. But the difference between mixing and extracting methods was not shown.

방기복령탕(防己茯苓湯)이 흰쥐에서 LPS로 유도된 우울증에 미치는 효과 (Effect of Banggibongnyeongtang on LPS-induced Depression in rats)

  • 박성준;이태희
    • 대한한의학방제학회지
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    • 제27권2호
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    • pp.137-149
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    • 2019
  • Objective : This study is conducted in order to investigate the effect of Banggibongnyeongtang(BBT) on Lipopolysaccharide (LPS)-induced depression. Method : LPS $5{\mu}g$ was injected to lateral ventricle. Experimental groups were administered BBT intraperitoneally. Depressive behavior was confirmed by weight change, sucrose preference, open field test(OFT), and forced swimming test(FST). The plasma concentration of $IL-1{\beta}$ and $TNF-{\alpha}$, Corticotropin-Releasing Factor(CRF), Adrenocorticotropin Hormone(ACTH) and Corticosterone(CORT) were measured by ELISA. Result : BBT did not change the body weight significantly than LPS group, but on sucrose preference, BBT increased significantly in LPS+BBT400 group compared to LPS group (P<0.05). In the OFT, BBT increased spending time in the central zone and decreased grooming number. LPS+BBT400 group increased central zone-spending time, and decreased grooming number than LPS group significantly (P<0.05). In the FST, LPS+BBT400 group decreased immobility time than LPS group significantly (P<0.05). BBT decreased $IL-1{\beta}$ concentration does-dependently, but only with significant decrease in LPS+BBT400 group than LPS group in plasma (P<0.05). But BBT did not decrease $TNF-{\alpha}$ concentration significantly in plasma. BBT decreased plasma CRF, ACTH, and CORT. And CRH and CORT of LPS+BBT400 group were shown significant decrease comparing with LPS group (P<0.05). Conclusion : It is postulated that the anti-depressant effect of BBT can be validated through inhibition of HPA axis abnormal activity by the anti-inflammatory effect.

Regulation of appetite-related neuropeptides by Panax ginseng: A novel approach for obesity treatment

  • Phung, Hung Manh;Jang, Dongyeop;Trinh, Tuy An;Lee, Donghun;Nguyen, Quynh Nhu;Kim, Chang-Eop;Kang, Ki Sung
    • Journal of Ginseng Research
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    • 제46권4호
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    • pp.609-619
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    • 2022
  • Obesity is a primary factor provoking various chronic disorders, including cardiovascular disease, diabetes, and cancer, and causes the death of 2.8 million individuals each year. Diet, physical activity, medications, and surgery are the main therapies for overweightness and obesity. During weight loss therapy, a decrease in energy stores activates appetite signaling pathways under the regulation of neuropeptides, including anorexigenic [corticotropin-releasing hormone, proopiomelanocortin (POMC), cholecystokinin (CCK), and cocaine- and amphetamine-regulated transcript] and orexigenic [agoutirelated protein (AgRP), neuropeptide Y (NPY), and melanin-concentrating hormone] neuropeptides, which increase food intake and lead to failure in attaining weight loss goals. Ginseng and ginsenosides reverse these signaling pathways by suppressing orexigenic neuropeptides (NPY and AgRP) and provoking anorexigenic neuropeptides (CCK and POMC), which prevent the increase in food intake. Moreover, the results of network pharmacology analysis have revealed that constituents of ginseng radix, including campesterol, beta-elemene, ginsenoside Rb1, biotin, and pantothenic acid, are highly correlated with neuropeptide genes that regulate energy balance and food intake, including ADIPOQ, NAMPT, UBL5, NUCB2, LEP, CCK, GAST, IGF1, RLN1, PENK, PDYN, and POMC. Based on previous studies and network pharmacology analysis data, ginseng and its compounds may be a potent source for obesity treatment by regulating neuropeptides associated with appetite.

시호(柴胡)가 강제수영부하시험에서 CRF, c-Fos, ACTH와 TH에 미치는 효과 (Effect of Bupeuri Radix on CRF, c-Fos, ACTH and TH in Forced Swimming Test)

  • 김정훈;이태희
    • 대한본초학회지
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    • 제24권2호
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    • pp.29-37
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    • 2009
  • Objectives: The goal of this study was to investigate the antidepressive effect of Bupleuri Radix (BR). Methods : The forced swimming test (FST) was performed. Also the expression of corticotropin releasing factor (CRF), c-Fos and tyrosine hydroxylase (TH) was measured immunohistochemically at paraventricular nucleus (PVN) and locus coeruleus (LC). Concentration of adrenocorticotrophic hormone (ACTH) was measured in plasma by ELISA method. Results : The immobility in BR400 Group was significantly decreased in comparison with the control group (p

귀비탕(歸脾湯)이 Estradiol Valerate로 유도된 흰쥐의 다낭성 난소에 미치는 영향 (Effects of Gwibi-Tang on the Estradiol Valerate-induced Polycystic Ovaries in Rats)

  • 이연경;서일복;이동녕;김형준
    • 대한한방부인과학회지
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    • 제21권3호
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    • pp.60-74
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    • 2008
  • Purpose: This study was designed to investigate the effects of Gwibi-Tang(GBT) on the polycystic ovary(PCO) induced by estradiol valerate(EV) in rats. Methods: PCO was induced by single intramuscular injection with EV(4mg) in female rats. Normal group(n=8) were injected with sesame oil and orally administrated distilled water for eight weeks. PCO control group(n=8) were injected with EV and orally administrated distilled water for eight weeks. GBT treated group(n=8) were injected with EV and orally administrated GBT for eight weeks. Then we measured weight of body, ovaries, adrenal glands, and uterus of rats. The histopathology changes of ovaries were also evaluated. The expression of nerve growth factor(NGF) was analyzed in the central nervous system, adrenal glands and ovaries by immunohistochemistry. And also CRF expression in median eminance of Rats were analyzed. Results: 1. The weight(g) of rats in GBT treated group($275{\pm}14$) was significantly increased(p<0.01) compared with control group($253{\pm}8$), 2. The weight(mg) of ovaries in GBT treated group($75.8{\pm}16.7$) was significantly increased(p<0.001) compared with control group($37.4{\pm}6.7$). 3. The number of mature follicles in GBT treated group($3.6{\pm}1.2$) was significantly increased(p<0.01) compared with control group($1.5{\pm}1.5$. 4. The number of atretic follicles in GBT treated group($8.0{\pm}3.1$) was significantly decreased(p<0.01) compared with control group($18.6{\pm}6.0$). 5. The number of cystic follicles in GBT treated group($0.5{\pm}0.5$) was significantly increased(p<0.01) compared with control group($2.3{\pm}1.3$). 6. The number of corpora lutea in GBT treated group($6.1{\pm}3.9$) was significantly increased(p<0.01) compared with control group($1.6{\pm}2.3$). 7. The expression of NGF-immunoreactive cells in the ovarian granulosa cells in GBT treated group was lesser observed than control group. Conclusion: From the above results, we concluded that Gwibi-Tang has inhibitory effect on the development of EV-induced polycystic ovary. And it's effect may be related with decreased NGF activities in the ovary.

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조경종옥탕(調經種玉湯)이 Estradiol Valerate로 유발된 다낭성 난소 모델에서 난포의 성숙 및 NGF 발현에 미치는 영향(影響) (Effects of J okyeongjongok-Tang on the Maturation of Follicles and NGF Expression in Rats with Estradiol Valerate-induced Polycystic Ovaries)

  • 양준모;서일복;이동녕;김형준
    • 대한한방부인과학회지
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    • 제24권2호
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    • pp.52-67
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    • 2011
  • Objectives: This study was designed to investigate the effects of Jokyeongjongok -Tang(JJT) on the progression of the estradiol valerate(EV)-induced polycystic ovaries(PCO) in rats. Methods: PCO was induced by single intramuscular injection with estradiol valerate(EV)(4 mg) in female rats. Normal group(n=8) were injected with sesame oil and orally administrated distilled water for sixty days. PCO control group (n=8) were injected with EV and orally administrated distilled water for sixty days. JJT treated group(n=8) were injected with EV and orally administrated JJT for same duration. At the end day of experiment, we measured weights of body, ovaries, adrenal glands and uterus. The histopathological changes of ovaries were also evaluated. And we observed the NGF and CRF expression by immunohistochemistry. Results: The results were as follows - The weights(mg) of ovaries of JJT treated group($58.4{\pm}9.4$) were significantly increased(p<0.01) compared with PCO control group($42.3{\pm}8.5$). - The numbers of mature follicles of JJT treated group($10.1{\pm}2.5$) were significantly increased(p<0.01) compared with PCO control group($6.1{\pm}2.1$). - The numbers of cystic follicles of JJT treated group($1.8{\pm}1.4$) were significantly decreased(p<0.05) compared with PCO control group($3.8{\pm}1.5$). - The expressions of NGF-immunoreactive cells in the ovaries of JJT treated group were weaker than PCO control group. Conclusions: From the above results, we concluded that Jokyeongjongok-Tang (JJT) contributes to a normal maturation of follicles and has the effects of promoting a normal ovulation. And these effects may be related with the decreased NGF activities in the ovaries.

사물탕가미방(四物湯加味方)이 원형탈모 생쥐의 발모효과에 관한 형태학적 연구 (Morphological Studies on Hair Growth Effect of Samultang-gamibang)

  • 권강주;이창현;이문원;문연자;최두호;이학재;김호민;우원홍
    • 동의생리병리학회지
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    • 제19권3호
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    • pp.696-704
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    • 2005
  • This experiment examined the effect of Samultang-gamibang (SGB) on hair growth in spontaneous alopecia areata C57BL/6N mice. We first investigated hair growth effect of SGB compare to control groups after apply to oral administration for 10 weeks and regional treatment in skin for last 4 weeks. We second investigated the number of hair follicle and mast cells after treatment of SGB in spontaneous alopecia areata C57BL/6N mice for 10 weeks. We third investigated immunoreactive density of neuropeptides in skin of spontaneous alopecia areata C57BL/6N mice by immunohistochemical methods. The results were as follows : Hair growing effect of experimental group was observed from 7 weeks after administration of SGB (87.5%). In experimental group, the number of mast cells and eosinophils was significantly decreased compare to control group. Immunoreactive density of substance P and corticotropin releasing factor (CRF) in skin of experimental group was weakly stained in epidermis and subcutaneous tissue compare to control group. Immunoreactive density of CRF-receptor (CRF-R), CRF-binding protein (CRF-BP) in skin of experimental group was increased in epidermis, sebaceous gland, inner root sheath, outer root sheath and secondary hair germ epithelium compare to control group. These results suggest that SGB may be used in treatment of alopecia areata.