• 대한본초학회지
• /
• 제30권3호
• /
• pp.69-76
• /
• 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.

• 대한한의학방제학회지
• /
• 제19권1호
• /
• pp.161-174
• /
• 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.

• 한국식품영양과학회지
• /
• 제30권5호
• /
• pp.937-942
• /
• 2001

본 연구는 신경 peptide 중 식욕감소 기능에 관여한다고 알려진 vasoactive intestinal peptide 의 식욕조절 기전을 관찰하기 위해 시도되었다. 연구방법으로 환경적으로 24시간 절식시킨 생쥐와 유전적으로 식욕부진증을 가지고 태어난 생쥐의 시상하부에서 vasoactive intestinal peptide의 발현양상을 조직수준의 관찰인 면역조직화학법의 분자생물학적 수준에서의 관찰괸 면역조작화학법과 분자생물학적 수준에서의 관철인 역전사연쇄중합반응(RT-PCR)과 dot-blot-ting을 이용하여 관찰하였다. 연구결과는 다음과 같다. 조직학적 수준에서의 관찰인 면역조직화학법에서 의한 vasoactive intestinal peptide 의 발현정도는 절시군에서의 경우, SCN 영역에서 발현정도가 낮았고 PVN 영역에서는 높게 나타났다. 식욕부진 돌연변이군의 경우도 SCN 영역의 발현정도가 낮았고 PVN 영역에서는 발현정도가 높게 나타났다. 분자생물학적 방법인 RT-PCR과 dot-blotting 으로 전체 시상하부의 va-soactive intestinal petide mRNA를 측정한 결과, 절식군은 대조군과 비슷하였고 식욕부진 돌연변이군에서 vasoactive intestinal peptide mRNA 발현은 현저하게 증가됨을 관찰할 수 있었다. 이상의 실험결과로 미루어 보아 vasoactive intestinal peptide에 의한 식욕조절은 절식이라는 식이조절보다는 유전적 소인을 지닌 식욕부진돌연변이 생쥐의 식욕감소 조절에 더욱 민감하게 반응한 것으로 사료된다.

• Molecules and Cells
• /
• 제23권1호
• /
• pp.88-93
• /
• 2007

Neuropeptide Y (NPY) is an orexigenic and hypothermic peptide. To understand its role in hypothermic conditions, male rats were placed in a $24^{\circ}C$ or $4^{\circ}C$ air chamber for 1.5 h. The expression of c-Fos protein, and NPY mRNA and protein, was analyzed in the hypothalamus 1 h-2 h later. The cold treatment increased the number of c-Fos-immunoreactive cells in the paraventricular hypothalamic nucleus (PVN) and arcuate nucleus (ARC). At the same time it decreased the density of NPY-immunoreactive components in the PVN, dorsomedial hypothalamic nucleus and ARC, as well as of NPY transcripts in the PVN and ARC. No colocalization of c-Fos with NPY was detected. These results suggest that short-term cold exposure should reduce indirectly NPY production in some hypothalamic nuclei to facilitate thermogenesis without inducing feeding behavior.

• 대한한의학방제학회지
• /
• 제18권1호
• /
• pp.155-167
• /
• 2010

Objectives : In order to investigate the antidepressant effects of Forsythiae Fructus(FF), we performed the Forced Swimming Test(FST). Also the expressions of corticotropin-releasing factor (CRF), c-Fos and tyrosine hydroxylase(TH) were measured by immunohistochemical method at paraventricular nucleus(PVN), ventral tegmental area(VTA) and locus coeruleus(LC). Methods : Spraque-Dawley rats were administered FF extract(100 mg/kg, 400 mg/kg) intragastrically three times prior to the FST. Results : The duration of immobility in the FST was significantly decreased in the FF 100 mg/kg, 400 mg/kg groups(p<0.05). The expression of CRF was significantly reduced in the FF 100 mg/kg and 400 mg/kg groups(p<0.001). c-Fos expression was significantly decreased at PVN in the FF 100 mg/kg group(p=0.069). TH expression at VTA was significantly increased in the FF 100 mg/kg and 400 mg/kg groups(p<0.05). TH expression at LC was not significantly changed(p=0.346). Conclusion : According to the results, it can be suggested that Forsythiae Fructus has antidepressant effect via the decreased immobility through the reduction of CRF and c-Fos expression at PVN.

• 대한한의학방제학회지
• /
• 제17권1호
• /
• pp.163-173
• /
• 2009

Objectives : The goal of this study was to investigative the effect of Gardeniae Fructus (GF)as antidepressant in the forced swimming test(FST) model rats. Methods : The expressions of corticotropin-releasing factor(CRF), tyrosine hydroxylase (TH) and c-fos were measured by immunohistochemical method at paraventricular nucleus(PVN), locus coeruleus (LC) and ventral tegmental area(VTA). Results : The duration of immobility in FST was significantly decreased in the GF 100mg/kg groups (p<0.05). CRF expression was significantly decreased at PVN in the GF 100 mg/kg and 400mg/kg treated group in comparison with the control group, respectively (p<0.01). c-fos expression was decreased at PVN in the GF 100 mg/kg treated group with no significance. TH expression was significantly decreased in the GF 100 mg/kg and 400mg/kg treated group in comparison with the control group, at LC and VTA respectively (p<0.001). Conclusion : According to the results, it can be considered that Gardeniae Fructus has antidepressant effect by showing the reduction of immobility in FST through the reduction of CRF, TH expression.

• 대한한의학방제학회지
• /
• 제17권1호
• /
• pp.129-140
• /
• 2009

Objectives : The goal of this study was to investigate the effect of Moutan Cortex as antidepressant in forced swimming test(FST) model. Methods : The expressions of corticotropin-releasing Factor(CRF), c-Fos and tyrosine hydroxylase(TH) were measured with immunohistochemical method at paraventricular nucleus (PVN), locus coeruleus(LC) and ventral tegmental area(VTA). Results : The duration of immobility in the forced swimming test was significantly decreased in the Moutan Cortex 100 mg/kg treated group in comparison with the control group(p<0.01). CRF and c-Fos expressions at PVN were decreased in the Moutan Cortex 100mg/kg treated group in comparison with the control group. But only the expression of c-Fos was shown the significance(p<0.05). TH expressions at LC and VTA were significantly decreased in the Moutan Cortex 100mg/kg and 400mg/kg treated group in comparison with the control group(p<0.001). Conclusion : According to the results, Moutan Cortex has the antidepressant effect by showing the reduced immobility through the reduction of c-Fos expression at PVN and the reduction of TH expression at LC and VTA.

• 동의신경정신과학회지
• /
• 제13권2호
• /
• pp.107-119
• /
• 2002

This study was performed to evaluate the effects of Koamsimsinwhan (without Cinnabarite) on depression in CMS-treated rats. Rats of trial groups were exposured to chronic mild unpredictable stress for 4 weeks. These CMS-treated rats were stratified into Koamsimsinwhan(without Cinnabarite) group and vehicle(non-drug) group. And there were control rats excluding both CMS and Koamsimsinwhan(without Cinnabarite). Forced swimming test, general activity test and immunohistochemical test(measuring the level of manifestation of c-Fos in PVN) were executed to evaluate the effects of Koamsimsinwhan(without Cinnabarite) on depression after 4 weeks of CMS treatment. The results were as follows 1. In FST, depression was induced from CMS treatment and was supressed with Koamsimsinwhan(without Cinnabarite). 2. The increased activity of nerve cell in PVN, which refers to stress, was induced from CMS treatment and normalized with Koamsimsinwhan (without Cinnabarite).

• 한국한의학연구원논문집
• /
• 제9권1호
• /
• pp.157-178
• /
• 2003

Objective : This study was designed to assess the protective effects of Chengwhabosimtang on the animal model of depression, chronic mild stress(CMS). Method : Male Sprague-Dawley rats Were used for this experiment. The subjects Were divided into 3 groups (1. CMS-drug: Chengwhabosimtang administered during CMS treatment, 2. CMS-vehicle: water administered, 3. normal ). After 4 weeks of CMS treatment they were executed Forced swimming test(FST) and Elevated plus maze. Tyrosine hydroxylase(TH) in ventral tegmental area(VTA) and c-Fos in paraventricular nucleus(PVN) were measured. Result : 1. In FST, CMS-drug group showed significantly decreased immobility behavior. 2. CMS-drug group showed no significantly lower TH level in VTA than CMS-vehicle group. 3. CMS-drug group showed significantly less c-Fos expressed cell bodies in PVN than CMS-vehicle group. 4. In Elevated plus maze, CMS-drug group showed no significantly anxiety. Conclusion : These results suggest that Chengwhabosimtang may have protective antidepressant effects in CMS model rats. And these effects could be explained by the elevated stress-copying behaviors which are related with PVN of hypothalamus and dopaminergic neurons in VTA.

• Journal of Nutrition and Health
• /
• 제33권5호
• /
• pp.491-496
• /
• 2000

Food intake is regulated by both central and peripheral mechanisms. In the central nervous, the hypothalamus acts for autonomic and endocrine homeostasis. The paraventricular nucleus(PVN) of hypothalamus is an imprtant site of interaction in central feeding pathways. Neuroepetide Y(NPY)is one of the most powerful neurochemical stimulants of food intake known. Also brain nitric oxide(NO), known as neurotransmitter, is involved in the mechanisms that regulate food intake. In this experiment, 24h fasting mice and anorexia mutant mice have been to examine the expression of NPY, which is the major neuropeptide increasing food intake. Double staining with NPY and nicotinamide-adenine-dinucleotide-phosphate diaphorase(NADPH-d), followed by immunohistochemical method and image analysis, have been used to observe coexisting neurons and the level of expression of each neurons. The results were as follows. 1) NPY-immunoreactivitys reduced immune response of the hypothalamus, particularly paraventricular nucleus(PVN), in anorexia mutant mice. Decreased level of NPY is assumed to be a major pathological factor in anorexia mutant mice. On the other hand, PVN in hypothalamus of fasting mice showed increased immunoreactivity which is in agreement of other researchers. 2) NPY and NADPH-d double staining revealed coexisting neurons in the cerebral cortex. Fasting mice had a tendency to have increased level of coexisting neurons compared to the control group. Compared to the control group, fasting mice express is not increase level of NPY-immunoreactivity, while anorexia mutant mice tended to have a decreased level.