• 동의신경정신과학회지
• /
• 제14권1호
• /
• pp.27-44
• /
• 2003

Objective : The aim of this study was to assess protective effects of Whangryonhaedoktang on the chronic mild stress (CMS) animal model of depression. Method : Male Sprague-Dawley rats were used for this study. The subjects were divided into 3 groups (CMS-drug group: Whangryonhaedoktang was administered during CMS procedure, CMS-vehicle: water was administered during CMS procedure, normal control group: without CMS procedure). After 4 weeks of CMS procedure, Morris water maze (MWM) test and open field test were executed and tyrosine hydroxylase (TH) was measured in ventral tegmental area (VTA) and locus coeruleus (LC) of rat brain. Result : 1. CMS procedure induced defects of spatial learning in early period of MWM test. 2. CMS Whangryonhaedoktang group showed shorter escape latency in comparison with CMS control group in MWM test on the first day of the test. 3. CMS Whangryonhaedoktang group and CMS control group showed no significant difference of activities and emotional behaviors in comparison with normal control group in open field test. 4. CMS Whangryonhaedoktang group showed significant inhibition effects of TH expression in VTA and LC areas in comparison with CMS control group. Conclusion : These results suggest that Whangryonhaedoktang may have inhibition effects to early period defects of spatial learning and protective antidepressant effects in CMS model rats.

• 동의신경정신과학회지
• /
• 제13권2호
• /
• pp.121-147
• /
• 2002

This study was performed to evaluate the effects of Quibitang in the chronic mild stress(CMS) model of depression in rats. Chronic exposure to mild unpredictable stress was found to depress the consumption of sucrose solution in rats for 8 weeks. These CMS-treated rats were stratified into Quibitang gruop and saline group. And control rats were also stratified into Quibitang group and saline group. The change of the consumption of sucrose solution and the body weight were measured, and open field test, elevated startle response and plus maze test were performed, to investigate the anti-depression effect of Quibitang. The results were as follows: 1. The consumption of sucrose solution was significantly reversed in Quibitang-treated group at 9th, 11th, 12th week, but there was no significant change at 10th week 2. CMS schedule decreased body weight. CMS-treated groups showed decrease of body weight after 5 weeks. After 10 weeks, Quibitang group showed lower body weight than saline group in CMS-treated groups 3. In open field test, Quibitang group showed significant difference of locomotion, latency. 4. In elevated startIe test, Quibitang group showed no significant change of startle response. 5. In plus maze test, Quibitang group showed no significant change of plus maze-time and plus maze-error.

• 동의신경정신과학회지
• /
• 제15권2호
• /
• pp.53-70
• /
• 2004

Objective : This study was designed to assess the protective effects of Bambusae caulis and St. John's Wort on the animal model of depression, induced by chronic mild stress(CMS) Method : Male Wistar rats were used for this experiment. The subjects were divided into 4 groups ( 1. CMS-drugs: Bambusae caulis administered during CMS treatment, 2. CMS-drugs: St. John's Wort administered during CMS treatment, 3. CMS-vehicle: Water administered during CMS treatment, 4. normal control group without CMS treatment ). After 3 weeks of CMS treatment, they were executed open field test and weight, sucrose intake were measured. Result : 1. CMS Bambusae caulis group showed significant difference of locomotor activities and marginal difference of start latency in comparison with other groups in open field test. 2. There was no change of weights between CMS Bambusae caulis, St. John's Wort groups and CMS control group. 3. CMS St. John's Wort group showed upper level of sucrose intake than CMS Bambusae caulis group and CMS control group. Conclusion : These results suggest that Bambusae caulis may have protective antidepressant effects in CMS model rats. And these effects could be explained by the elevated locomotor activities in open field test.

• 한국축산식품학회지
• /
• 제43권6호
• /
• pp.1044-1054
• /
• 2023

Growing evidence indicates a crucial role of the gut microbiota in physiological functions. Gut-brain axis imbalance has also been associated with neuropsychiatric and neurodegenerative disorders. Studies have suggested that probiotics regulate the stress response and alleviate mood-related symptoms. In this study, we investigated the effects of the probiotic Lacticaseibacillus rhamnosus IDCC3201 (L3201) on the behavioral response and fecal metabolite content in an unpredictable chronic mild stress (UCMS) mouse model. Our study shows that chronic stress in mice for three weeks resulted in significant changes in behavior, including lower locomotor activity, higher levels of anxiety, and depressive-like symptoms, compared to the control group. Metabolomic analysis demonstrated that disrupted fecal metabolites associated with aminoacyl-tRNA biosynthesis and valine, leucine, and isoleucine biosynthesis by UCMS were restored with the administration of L3201. Oral administration of the L3201 ameliorated the observed changes and improved the behavioral alterations along with fecal metabolites, suggesting that probiotics play a neuroprotective role.

• 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.

• 동의신경정신과학회지
• /
• 제12권2호
• /
• pp.53-68
• /
• 2001

This study was performed to investigate the anti-depression effect of Guibiondamtang in rat model of depression. The rats in the experiment were stratified into 3 groups, ie, Guibiondamtang, saline, normal (non-stressed) groups. Chronic exposure to mild unpredictable stress such as white noise, flashing lights and restriction of food and water, causes the behavioral symptoms correspondent to depression. Consumption of 1% sucrose solution fell in rats exposed to CMS for 4 weeks. In the open field test , the exploratory activity ie. locomotion and centering decreased after CMS. We then evaluated the sucrose consumption and activity during 4 weeks of treatment with experimental drugs. The results were as follows: 1) There was no relation between sucrose intake and weight. 2) The Guibiondamtang(歸脾溫膽湯) group reinstated sucrose consumption within 5-6 weeks while having no influence on sucrose intake in normal group. 3) The Guibiondamtang(歸脾溫膽湯) group restored some exploratory activity in the open field test. 4) The Guibiondamtang-group had a-reduced potentiated startle response.

• 축산식품과학과 산업
• /
• 제9권2호
• /
• pp.58-65
• /
• 2020

우울증은 동기, 의욕, 관심, 주의력, 정신기능 및 식욕의 감소를 특징으로 하는 일종의 기분 장애이다. 우울증은 유전적, 내분비 및 환경적 스트레스를 포함한 다양한 원인에 의해 발생하지만 가벼운 우울증은 식이요법으로 개선되는 것으로 보고되었다. 따라서 우울증 환자를 치료하기 위해서는 기능성 및 영양 보충제를 포함한 다양한 식품 공급원이 필요하다. 치즈에는 숙주 건강에 유익한 영향을 미치는 생리 활성 펩타이드가 포함되어 있다. 특히 저지(Jersey) 우유는 홀스타인(Holstein) 우유보다 고형분 함량이 높은 것으로 보고되었다. 이 연구는 저지(Jersey) 와 홀스타인(Holstein) 우유의 가우다 치즈(Gouda cheese)가 만성 스트레스(CUMS, chronic unpredictable mild stress)에 미치는 영향을 조사했다. 치즈를 먹인 만성 스트레스 마우스 모델의 개선적 변화는 젖소 종에 관계없이 통계적으로 유의미하게 효과적으로 나타났다. 흥미롭게도 PCR을 통한 분변 미생물 균총 분석에서 저지 치즈를 섭취함으로써 Bacteroidetes가 증가하고 Firmicutes가 유의적으로 감소하는 것으로 나타났다. 종합하면, 본 연구는 치즈 섭취가 스트레스 개선 작용이 있음을 제시하며, 특히 장내 미생물 균총의 유익한 방향으로의 변화가 관찰되는데, 치즈의 생리활성물질 혹은 장내미생물 균총의 대사물질들이 이러한 행동·정신학적 개선 작용과의 연관성이 있음을 시사한다.

• Journal of Oral Medicine and Pain
• /
• 제31권1호
• /
• pp.79-89
• /
• 2006

구강 내에 발생되는 질환의 대부분이 타액의 영향을 받는다는 사실과 타액에 영향을 주는 전신적인 요소 중에서도 스트레스가 중요하다는 것은 이미 잘 알려져 있으나, 스트레스가 타액선에 미치는 영향에 관해서는 자율신경에 의한 거시적 반응에 대하여만 소개가 되었을 뿐 세포수준의 미시적 변화에 대하여는 별다른 언급이 없었다.. 이에 본 연구에서는 다양한 스트레스 조건하에서 백서의 악하선이 어떠한 변화를 보이는지를 clusterin 의 발현양상을 관찰함으로써 유추해보고자 하였다. 부여할 스트레스 조건을 급성 구속스트레스와 만성 저강도 스트레스의 두 가지로 정하고 7주된 Sprague-Dawley계 웅성백서 51마리를 사용하여 정해진 기간동안 급성 구속스트레스와 만성 저강도 비예측성 스트레스 (CUMS)를 가한 후 희생하여 악하선을 절취하고 역시 면역조직화학법과 웨스턴 면역점적법을 이용하여 악하선에서 clusterin발현의 시간에 따른 변화를 관찰하였으며, 그 결과는 다음과 같다: 1. 급성 구속스트레스 군에서, Clusterin 이 발현된 모든 선포의 합은 1시간 군을 제외한 모든 실험군 (9시간, 24시간, 72시간, 120시간, 그리고 168시간 군) 에서 대조군에 비하여 유의성 있게 감소하는 경향을 보였다 (p<0.001). 2. 만성저강도스트레스 군에서, 대조군에 대한 clusterin이 발현된 모든 선포의 합은, 2주군(p<0.01)에서 대조군에 비하여 유의하게 증가되는 모습을 보여주었고, 4주군(p<0.01)과 5주군(p<0.001)에서 대조군에 비하여 유의성 있게 감소하는 경향을 보였다. 3. 만성 저강도 스트레스 실험에서 4주째까지는 대조군과 실험군간의 당선호도 차이에 있어서 유의한 변화가 보이지 않았으나, 5주째에 유의성 있는 감소를 나타내었다(p<0.001). 4. 만성 저강도 스트레스 부여군은 5주째 대조군에 비하여 유의성 있는 체중변화(p<0.001)를 보여주었으나, 수분섭취량의 변화는 유의성 있는 상관관계를 보여주지 못하였다. 5. 면역점적검사를 시행한 결과, 구속스트레스 군에서는 clusterin의 발현이 시간에 따라 일정하게 감소하는 것으로 표현되었고, CUMS 군에서는 2주째까지는 증가하다가 3주 이후부터 실험 전기간에 걸쳐 감소하는 것으로 나타났으며 이는 당선호도 및 몸무게 변화의 양상의 변화와 크게 다르지 않았다. 따라서 위의 실험결과를 놓고 볼 때, 타액선 clusterin의 발현이 급성과 만성에 관계없이 스트레스 부여 후에 감소하였지만, 다른 문헌에서 제안된 것처럼 clusterin 의 고갈에 의한 세포자사적 변화는 관찰되지 않았다. 따라서 향후 보다 강화된 강도의 급성스트레스를 부여하는 방법과 더 장기적으로 진행된 연구를 통하여 고강도 스트레스에서 clusterin의 발현감소와 함께 세포의 변성이나 자사가 초래되는지, 저강도 스트레스의 경우 장기간 시간이 경과함에 따라 원래의 상태에 가깝게 회복되는지, 다른 열 충격 단백질이나 세포 사멸 시에 나타나는 단백질들을 동시에 확인하여 보는 것이 필요할 것으로 사료된다.

• 한국농촌간호학회지
• /
• 제1권1호
• /
• pp.40-48
• /
• 2006

Purpose: This study was done to identify the experience of stress and burn-out in caregivers of patients with senile dementia. Method: To evaluate the degree of stress and burn-out in caregivers of patients with senile dementia, 64 caregivers and matched to 64 patients with senile dementia at a Primary Health Care Post in South Kyung Sung Province were selected. The study was carried out from March 6 to March 30, 2001. Data on the degree of dementia in the patients was measured by the MMSE-K (Mini-Mental State Examination-Korea) and caregiver characteristics such as, sex, age, marital status, educational level, job, socioeconomic status, religion, number in family, relationship with patient, duration of care, and chronic disease in caregiver were collected by direct interview with a questionnaire. Results: Of 64 patients with senile dementia, 15.6% were classified as mild dementia (MMSE score 20-24) and 84.4%, as severe dementia. There were no significant characteristics of caregivers associated with the degree of stress and burn-out experience. The degree of burn-out in these caregivers of patients with severe dementia (mean value 94.3) was significantly higher than the 81.4 for those caring for patients with mild dementia (p<0.05). However, the degree of stress was not significantly related with the degree of dementia. The proportion experiencing severe burn-out (above score 4) was 54.7% in the physical domain, 90.6% in the emotional domain, and 73.4% in psychiatric domain, respectively. Conclusion: The above findings suggest that the degree of stress and burn-out experienced by caregivers of patients with senile dementia are high. Also the degree of burn-out experienced by in caregivers of patients with severe dementia was higher than for those caring for patients with mild dementia.