• Journal of Nutrition and Health
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• 제38권8호
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• pp.626-636
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• 2005

This study was undertaken to examine effects of dietary intake of garcinia cambogia extract, soy peptide and L-carnitine mixture on body weight gain and obesity-related bio-markers in rats fed high-fat diet for 9 weeks with or without regular treadmill exercise. Forty 5-week-old male Sprague-Dawley rats were randomly divided into four groups; sedentary control group (SC), exercised control group (EC), sedentary formula-fed group (SF), and exercised formula-fed group (EF). The SC and EC rats were fed high-fat control diet (fat comprises$40\%$ of total caloris), and SF and EF rats were fed high-fat formula (composed of garcinia cambogia, soy peptide and L-carnitine) supplemented diet. Statistical analyses by two-way ANOVA indicated that the regular treadmill exercise significantly lowered cumulative body weight gain, total visceral fat mass, and epididymal, perirenal and retroperitoneal fat pad weights, and serum concentrations of total cholesterol and LDL + VLDL cholesterol, insulin, c-peptide and leptin. Feeding the formula also resulted in significant reductions in cumulative body weight gain and visceral fat pad weights, along with other related parameters including serum total and LDL + VLDL cholesterol levels, and hepatic enzyme activities involved in fatty acid synthesis. Statistical analyses by one-way ANOVA revealed that the formula consumption significantly improved body weight gain ($18\%$ reduction), total visceral fat weight ($20\%$ reductions), and serum total ($43\%$ reduction) and LDL + VLDL cholesterol ($54\%$ reduction) levels, as well as serum levels of insulin ($49\%$ reduction), and c-peptide ($41\%$ reduction) in sedentary rats, but failed to exhibit significant reductions in these indices in animals under treadmill exercise program. Taken together, these results suggest that the treadmill exercise per n exhibited significant improvements in body fat reduction and other related bio-markers, and so the formula consumption did not achieve a further significant reductions in these bio-markers in exercised rats. Nevertheless, animals fed the formula with regular exercise showed the most efficient weight reduction compared to other groups either fed formula without exercise or received regular exercise without dietary supplementation.

• Animal Bioscience
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• 제34권7호
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• pp.1210-1220
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• 2021

Objective: Unlike mammals, goose fatty liver shows a strong tolerance to fatty acids without obvious injury. Stearyl-coenzyme A desaturase 1 (SCD1) serves crucial role in desaturation of saturated fatty acids (SAFs), but its role in the SAFs tolerance of goose hepatocytes has not been reported. This study was conducted to explore the role of SCD1 in regulating palmitic acid (PA) tolerance of goose primary hepatocytes. Methods: 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide was examined to reflect the effect of PA on hepatocytes viability, and quantitative polymerase chain reaction was used to detect the mRNA levels of several genes related to endoplasmic reticulum (ER) stress, inflammation, and apoptosis, and the role of SCD1 in PA tolerance of goose hepatocytes was explored using RNA interfere. Results: Our results indicated that goose hepatocytes exhibited a higher tolerant capacity to PA than human hepatic cell line (LO2 cells). In goose primary hepatocytes, the mRNA levels of fatty acid desaturation-related genes (SCD1 and fatty acid desaturase 2) and fatty acid elongate enzyme-related gene (elongase of very long chain fatty acids 6) were significantly upregulated with 0.6 mM PA treatment. However, in LO2 cells, expression of ER stress-related genes (x box-binding protein, binding immunoglobulin protein, and activating transcription factor 6), inflammatory response-related genes (interleukin-6 [IL-6], interleukin-1β [IL-1β], and interferon-γ) and apoptosis-related genes (bcl-2-associated X protein, b-cell lymphoma 2, Caspase-3, and Caspase-9) was significantly enhanced with 0.6 mM PA treatment. Additionally, small interfering RNA (siRNA) mediated downregulation of SCD1 significantly reduced the PA tolerance of goose primary hepatocytes under the treatment of 0.6 mM PA; meanwhile, the mRNA levels of inflammatory-related genes (IL-6 and IL-1β) and several key genes involved in the phosphoinositide 3-kinase (PI3K)/protein kinase B (AKT), forkhead box O1 (FoxO1), mammalian target of rapamycin and AMPK pathways (AKT1, AKT2, FoxO1, and sirtuin 1), as well as the protein expression of cytochrome C and the apoptosis rate were upregulated. Conclusion: In conclusion, our data suggested that SCD1 was involved in enhancing the PA tolerance of goose primary hepatocytes by regulating inflammation- and apoptosis-related genes expression.

• Journal of Nutrition and Health
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• 제36권4호
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• pp.352-358
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• 2003

신령버섯 균사체 배양액이 고지방식이를 섭취한 숫쥐의 성장률, 장기무게, 지질 농도, 단백질 농도 및 효소활성에 미치는 영향을 조사하고자, 생후 7주령의 흰쥐 (255.3 $\pm$ 20.2 g)에 표준식이를 급여한 정상군, 표준식이에 15% 돈지를 첨가한 식이를 급여한 고지방군, 고지방 식이에 신령버섯의 균사체 배양액을 음료수에 20% 및 30%로 혼합 급여한 군 (20% 및 30% 신령버석군) 등 4군으로 나누어 5주간 사육한 결과는 다음과 같다. 실험동물의 체중증가량, 식이섭취량 및 식이효율, 그리고 간, 신장, 비장 및 췌장의 무게는 고지방군과 20% 및 30% 신령버섯군이 비슷한 수준을 유지하였다. 부고환지방은 정상군에 비하여 고지방군 및 신령버섯군들이 유의하게 증가되어 신령버섯 섭취에 따른 감소효과는 나타나지 않았다. 혈청의 총 콜레스테롤, 중성지질, LDL-콜레스테롤, HDL-콜레스테를 농도 및 glutamic pyruvic transaminase 활성은 고지방군에 비해 30%신령버섯군이 유의하게 감소되었다. 간의 콜레스테롤과 중성지질 농도는 고지방군과 20% 및 30% 신령버섯군이 비슷한 수준으로 감소효과가 나타나지 않았다. 총 콜레스테롤에 대한HDL-콜레스테롤의 비율은 고지방군에 비해 30%신령버섯군이 유의하게 증가되었다. 혈청의 단백질, 혈색소 및 혈당 농도, 동맥경화지수와 alkaline phosphatase 활성은 정상군과 각 실험군이 비슷한 수준을 유지하였다. 혈청의 glutamic oxaloacetic transaminase 활성은 고지방군과 20% 및 30% 신령버섯군이 비슷한 경향이었다. 이상의 결과로 보아 고지방식이를 급여한 흰쥐에 신령버섯 균사체 배양액을 30% 급여시 체중증가량과 장기 무게는 정상수준을 유지하였고, 혈청의 총 콜레스테롤, 중성지질 및 LDL-콜레스테를 농도를 낮추고, 총 콜레스테롤에 대한 HDL-콜레스테롤의 비율을 증가시키는 효과가 나타났다.

• 한국식품영양과학회지
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• 제36권4호
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• pp.405-410
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• 2007

본 연구에서는 우리나라 장려 품종인 청일뽕잎을 이용하여 고지방식이(열량의 37%를 지방으로 대체)를 급여한 C57BL/6 마우스의 지질 함량과 지질대사를 측정함으로써 뽕잎분말과 열수추출물의 지질 개선작용을 검증하고자 하였다. 4주령의 C57BL/6마우스(n=32)를 1주일간 적응시킨 후 정상식이를 급여한 정상군, 고지방을 급여한 고지방대조군(HF), 고지방-뽕잎분말군(HF-PML)과 고지방-뽕잎열수 추출물군(HF-WML)으로 나누어 6주간 사육하였다. 뽕잎은 사람의 섭취량을 고려하여 뽕잎 1%수준이 섭취되도록 분말(1g/100g diet)과 열수추출물(0.22g/100g diet)을 식이에 첨가 조제하여 급여하였다. 뽕잎분말과 열수추출물은 고지 방을 급여 한 마우스의 체중과 장기 무게에는 영향을 미치지 않았다. 뽕잎분말만 일일 식이섭취량과 에너지 섭취를 고지방 대조군에 비하여 감소시켰다 실험 6주 후 고지방 대조군의 혈장과 간조직 중의 콜레스테롤과 중성지질 함량이 정상군에 비하여 유의적으로 높았으나 뽕잎분말과 열수추출물 급여시 혈장과 간조직 중의 지질 함량이 유의적으로 개선되었고 총 콜레스테롤 함량에 대한 HDL-콜레스테롤 비는 정상 수준이었다(p<0.05). 뽕잎분말과 열수추출물은 변으로의 콜레스테롤과 중성지질 배설을 증가시켰다. 간조직 중의 fatty acid synthase, fatty acid ${\beta}-oxidation$과 carnitine palmitoyl transferase 활성은 고지방 대조군이 정상군에 비하여 유의적으로 낮았으나 뽕잎분말과 열수추출물은 이들 효소들의 활성을 증가시키는 것으로 나타났다(p<0.05). 이와 같이 고지방을 급여한 마우스에서 뽕잎분말과 열수추출물은 변으로의 지질 배설을 증가시키고 간조직의 지질대사 관련 효소 활성에 영향을 미침으로써 혈장과 간조직의 지질 함량을 개선하는데 효과적인 것으로 검증되었다.

• 한국식품영양과학회지
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• 제31권5호
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• pp.796-801
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• 2002

두충 에탄을 추출물이 생체내 지질대사 및 항산화 효소계에 미치는 영향을 조사하였다. 정상식이에 두충 추출물을 투여(CE)한 결과 총콜레스테롤은 대조군(C)에 비해 감소하는 경향을 나타내었으며 HDL은 증가하였으나 통계적 유의 성은 없었다 동맥경화 지수 역시 두충 추출물 투여군(CE)이 대조군 (L)에 비해 감소를 나타내었으며 HTR은 55%의 증가를 보였다(p<0.05. 고지방식이(CL)를 투여한 결과 혈청 콜레스테롤 함량은 대조군(C)에 비해 유의성있게(p<0.05) 증가하였으나 HDL과 HTR은 크게 감소되어 통계적 유의성 (p<0.05)을 나타내었다. 고지방식이군(CL)의 동맥경화지수(AI)는 대조군(C)에 비해 3.6배의 증가를 보였다(p<0.05). 고지방식이에 두충 추출물(CLE)을 투여했을 때 콜레스테롤 함량과 동맥경화지 수는 고지방식이군(CL)에 비해 감소하는 경향을 보였다. 고지방식이군(CL)의 중성 지방 함량과 인지질 함량은 대조군(C)에 비해 증가하는 경향을 나타내었으며 두충 추출물 투여(CLE)로 중성 지방은 CL군에 비해 크게 감소되었으며 (p<0.05) 인지질 또한 감소하는 경향을 보였다 간 지질대사에서 두충 추출물 투여군(CE)의 총 지질과 콜레스테롤은 대조군(C)에 비해 다소 감소하는 경향이었고 인지질은 대조군보다 22% 증가하였다. 고지방식이 (CL) 투여 시간의 총지질, 콜레스테롤, HDL, 중성 지방은 대조군(C)에 비해 유의성있게(p<0.05) 증가하였다. 고지방식이 (CL)에 의해 GST활성은 유의 성 있게 감소하였으나 catalase와 SOD활성은 대조군(C)과 차이를 보이지 않았다. 두충 추출물의 투여에 의한 CE및 CLE군의 GST와cata-lase활성은 각각 C와 CL군에 비해 증가하는 경향을 보였다.

• 대한한방내과학회지
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• 제31권3호
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• pp.650-666
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• 2010

Objectives : In this study, the author tried to investigate whether wood vinegar produced from Morus alba (MA) significantly affects the increase in airway epithelial mucosubstances and hyperplasia of tracheal goblet cells of rats, and in vitro airway mucin secretion and PMA- or EGF- or TNF-alpha-induced MUC5AC mucin production / gene expression from human airway epithelial cells. Materials and Methods : For the in vivo experiment, the author induced hypersecretion of airway mucus and goblet cell hyperplasia by exposure of rats to SO2 over 3 weeks. Effect of orally-administered MA over 2 weeks on increase in airway epithelial mucosubstances from tracheal goblet cells of rats and hyperplasia of goblet cells were assessed using histopathological analysis after staining the epithelial tissue with alcian blue. For the in vitro experiment, confluent RTSE cells were chased for 30 min in the presence of MA to assess the effect of MA on mucin secretion by enzyme-linked immunosorbent assay (ELISA). Also, effects of MA on PMA- or EGF- or TNF-alpha-induced MUC5AC mucin production and gene expression from human airway epithelial cells (NCI-H292) were investigated. Confluent NCI-H292 cells were pretreated for 30 min in the presence of MA and treated with PMA (10 ng/ml), EGF (25 ng/ml) or TNF-alpha (0.2 nm) for 24 hrs, to assess both effects of MA on PMA- or EGF- or TNF-alpha-induced MUC5AC mucin production by enzyme-linked immunosorbent assay (ELISA) and gene expression by reverse transcription-polymerase chain reaction (RT-PCR). Possible cytotoxicities of MA in vitro were assessed by examining LDH release from RTSE cells and the rate of survival and proliferation of NCI-H292 cells. In vivo liver and kidney toxicities of MA were evaluated by measuring serum GOT/GPT activities and serum BUN/creatinine concentrations of rats after administering MA orally. Results : 1. MA decreased the amount of intraepithelial mucosubstances of rats exposed to sulfur dioxide inhalationally. 2. MA decreased in vitro mucin secretion from cultured RTSE cells. 3. MA significantly inhibited PMA-, EGF-, and TNF-alpha-induced MUC5AC mucin productions and the expression levels of MUC5AC mRNA from NCI-H292 cells. 4. MA did not show either in vitro or in vivo hepatic or renal toxicities. Conclusion : The results from this study suggests that MA can regulate the secretion, production and gene expression of airway mucin observed in diverse respiratory diseases accompanied by mucus hypersecretion and does not show in vivo toxicity to liver and kidney functions after oral administration. Effects of MA should be further studied using animal experimental models that simulate the diverse pathophysiology of respiratory diseases via future research.

• Journal of Acupuncture Research
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• 제24권3호
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• pp.145-161
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• 2007

Objectives : The purpose of this study is to investigate the effect of electroacupuncture at Joksanmi($ST_{36}$) on Rat's aging by experimental methods. Methods : The author performed several experimental procedures to observe the effects of the EC-HAS at the arthritis. First, I measured the cell survival rate of the mice lung fibroblasts. Second, the incidence rate of arthritis and arthritis index of CIA were analyzed. Third, the levels of IL-6, $INF-{\gamma}$ , $INF-{\alpha}$ , $IL-1{\beta}$, IgG, IgM and anti-collagen II were measured in serum and the level of $INF-{\gamma}$, $INF-{\gamma}$/IL-4 ratio in the CIA mouse spleen cell culture. Fourth, histological analysis of the mice joint was performed. Fifth, the expression ratio of $CD3e^+$ cells to $CD19^+$ cells, $CD4^+$ cells to $CD8^+$ cells, $CD11a^+CD19^+$ cells, $CD4^+CD25^+$ cells, $CD3^+CD69^+$ cells, and $CD11b^+Gr-1^+$ cells were checked. Results: 1. The hematocrit was meaningfully (p<0.01, p<0.05) decreased in $ST_{36}$ group in comparison with the control and sham group. 2. The glucose, ALP were meaningfully (p<0.05, p<0.05) decreased in $ST_{36}$ group in comparison with the control group. 3. In the activation of hepatic antioxidase, the catalase was meaningfully (p<0.01) increased in $ST_{36}$ group in comparison with the control group. 4. In the liver, the NO formation was meaningfully (p<0.001) decreased in $ST_{36}$ group in comparison with the nomal, control and sham group. 5. In the activation of splenetic antioxidase, the GSH was meaningfully (p<0.01) increased in $ST_{36}$ group in comparison with the sham group, and the catalase was meaningfully (p<0.001) increased in $ST_{36}$ group in comparison with the control group. 6. In the spleen, the MDA formation was meaningfully (p<0.01, p<0.05) decreased in $ST_{36}$ group in comparison with the control and sham group. 7. In the spleen cell culture, the levels of IL-6 was meaningfully (p<0.05) decreased in comparison with the sham group, $INF-{\gamma}$( was meaningfully (p<0.05) increased in comparison with the control group. Conclusions: According to the results, it is considered that electroacupuncture at Joksamni($ST_{36}$) is effective in increasing the activities of antioxidative enzyme and inhibiting lipid peroxides, and has an immunomodulatory reaction. In conclusion, it han an significant anti-aging effect and need more experimental study.

• 한국수정란이식학회지
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• 제28권2호
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• pp.157-162
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• 2013

Methoxychlor (MXC) was developed to be a replacement for the banned pesticide DDT. HPTE [2,2-bis (p-hydroxyphenyl)-1,1,1-trichloroethane], which is an in vivo metabolite of MXC, has strong oestrogenic and anti-androgenic effects. MXC and HPTE are thought to produce potentially adverse effects by acting through oestrogen and androgen receptors. Of the two, HPTE binds to sex-steroid receptors with greater affinity, and it inhibits testosterone biosynthesis in Leydig cells by inhibiting cholesterol side-chain cleavage enzyme activity and cholesterol utilisation. In a previous study, MXC was shown to induce Leydig cell apoptosis by decreasing testosterone concentrations. I focused on the effects of MXC on male mice that resulted from interactions with sex-steroid hormone receptors. Sex-steroid hormones affect other organs including the kidney and liver. Accordingly, I hypothesised that MXC can act through sex-steroid receptors to produce adverse effects on the testis, kidney and liver, and I designed our experiments to confirm the different effects of MXC exposure on the male reproductive system, kidney and liver. In these experiments, I used pre-pubescent ICR mice; the puberty period in ICR mice is from postnatal day (PND) 45 to PND60. I treated the experimental group with 0, 100, 200, 400 mg MXC/kg b.w. delivered by an intra-peritoneal injection with sesame oil used as vehicle for 4 weeks. At the end of the experiment, the mice were sacrificed under anaesthesia. The testes and accessory reproductive organs were collected, weighed and prepared for histological investigation. I performed a chemiluminescence immune assay to observe the serum levels of testosterone, LH and FSH. Blood biochemical determination was also performed to check for other effects. There were no significant differences in our histological observations or relative organ weights. Serum testosterone levels were decreased in a dose-dependent manner; a greater dose resulted in the production of less testosterone. Compared to the control group, testosterone concentrations differed in the 200 and 400 mg/kg dosage groups. In conclusion, I observed markedly negative effects of MXC exposure on testosterone concentrations in pre-pubescent male mice. From our biochemical determinations, I observed some changes that indicate renal and hepatic failure. Together, these data suggest that MXC produces adverse effects on the reproductive system, kidney and liver.

• Asian-Australasian Journal of Animal Sciences
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• 제21권6호
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• pp.853-860
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• 2008

This experiment was conducted to study the effects of chromium (Cr), dietary crude protein (CP) level and potential interactions between these two factors on growth rate and carcass response, insulin activity and lipid metabolism in lambs. Forty-eight, 9-week-old weaned lambs (Dorper$\times$Small-tail Han sheep, mean initial body weight = $22.96kg{\pm}2.60kg$) were used in a $2{\times}3$ factorial arrangement of supplemental Cr (0 ppb, Cr0; 400 ppb, Cr1; or 800 ppb, Cr2 from chromium yeast) and CP levels (157 g/d to 171 g/d for each animal, LP; or 189 g/d to 209 g/d for each animal, HP). Growth data and blood samples were collected at the beginning and end of the feed trial, after which the lambs were killed. Both Cr additive groups and the HP group increased final weight and average daily gain, especially the Cr1 and HP group (p<0.01). HP increased pelvic fat weight (p<0.05), fat thickness of the 10th rib (p<0.05), longissimus muscle area (p<0.01) and rate of deposition of intramuscular fat (p<0.01). Supplemental Cr decreased the rate of deposition of intramuscular fat (p<0.05). Fasting insulin level and the ratio of insulin to glucose were lower with Cr1 than other groups, but with no significant difference. Glucose concentration was not affected by any treatment. Nonesterified fatty acids increased in the Cr1 (p<0.05) and HP (p<0.05) conditions and there was a significant $Cr{\times}CP$ interaction (p<0.05). Cr1 decreased triglycerides (p<0.05) and total cholesterol (p = 0.151) and HP increased high-density lipoprotein cholesterol (p<0.05). Cr1 decreased lipoprotein lipase activity in subcutaneous adipose tissue (aLPL, p<0.05) and the ratio of aLPL to lipoprotein lipase activity in skeletal muscle (mLPL, p = 0.079). mLPL and hepatic lipase (hHL) were not affected by any treatment. In the present study, Cr had limited effects on growth rate and carcass response, whereas Cr and CP had some notable effects on plasma metabolites and enzyme activities. Cr has a potential effect on energy modulation between lipid and muscle tissue. In addition, few $Cr{\times}CP$ interactions were observed.

• 대한한방소아과학회지
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• 제30권2호
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• pp.31-46
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• 2016

Objectives In this study, the effects of Ja-eum-gang-hwa-tang (JGT) on the increase in airway epithelial mucosubstances of rats and ATP- or PMA- or EGF- or TNF-${\alpha}$-induced MUC5AC mucin production and gene expression from human airway epithelial cells were investigated. Materials and Methods Hypersecretion of airway mucus was produced by exposure of $SO_2$ to rats for 3 weeks. The effect of orally-administered JGT for 2 weeks on increased epithelial mucosubstances from tracheal goblet cells of rats was assessed by using histopathological analysis after staining the epithelial tissue with Hematoxylin-eosin and PAS-alcian blue. Possible cytotoxicity of JGT was assessed by investigating the potential damage on kidneys and liver functions by measuring serum GOT/GPT activities and serum BUN concentration of rats and the body weight gain during experiment. Also, the effect of JGT on ATP- or PMA- or EGF- or TNF-${\alpha}$-induced MUC5AC mucin production and gene expression from human airway epithelial cells (NCI-H292) were investigated. Confluent NCI-H292 cells were pretreated for 30 min in the presence of JGT and treated with ATP ($200{\mu}M$) or PMA ($10ng/ml$) or EGF ($25ng/ml$) or TNF-${\alpha}$ (0.2 nM) for 24 hrs to assess the effect of JGT both on ATP- or PMA- or EGF- or TNF-${\alpha}$-induced MUC5AC mucin production by using enzyme-linked immunosorbent assay (ELISA) and on gene expression by the same inducers using reverse transcription-polymerase chain reaction (RT-PCR). Results (1) JGT decreased the amount of intraepithelial mucosubstances of trachea of rats. (2) JGT did not show any renal and hepatic toxicities, and did not affect body weights either. (3) JGT significantly inhibited ATP-, PMA-, EGF-, and TNF-${\alpha}$-induced MUC5AC mucin productions from NCI-H292 cells. (4) JGT inhibited EGF-, and PMA-induced expression levels of MUC5AC gene in NCI-H292 cells. However, ATP- and TNF-${\alpha}$-induced MUC5AC gene expression levels were not affected in NCI-H292 cells. Conclusions The result from the present study suggests that JGT might control the production and gene expression of airway mucin observed in various respiratory diseases which accompanied by mucus hypersecretion. Also, JGT did not show liver toxicity or impact on kidney functions. The effect of JGT should be further studied by using animal experimental models which can show proper pathophysiology of airway diseases.