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김주혜,박희진,배문형,서영하,구은영,오택근,이병석 충남대학교 농업과학연구소 2024 Korean Journal of Agricultural Science Vol.51 No.2
Herbal medicinal mushroom Cordyceps militaris has been traditionally used as tonic medicine for metabolic syndrome. Cordycepin, main extract of C. militaris , has been reported with immunomodulatory, anticancer, and hepatoprotective effects. This study was conducted to evaluate the potential hepatoprotective effect of cordycepin-enriched Cordyceps militaris , against high fat diet (HFD)-induced hepatic steatosis (HS) in male obese (ob/ob) mice. HFD was provided to ob/ob mice ad libitum (except negative control). Cordycepin-enriched C. militaris extract powder (CM) was orally administered once daily at dose levels of 0, 125, 250, and 500 mg·kg-1 for 4 weeks. During the study, body weight gain was statistically increased in all HFD fed groups compared to negative control, but body weight gain in CM 500 mg·kg-1 treated group shows a low tendency compared to HS model group. In organ weights, absolute and relative weights (to body weight) in liver and perirenal adipose tissue were increased in all HFD treated groups except CM 500 mg·kg-1 treated group compared to the negative control. In clinical chemistry, serum glucose and total cholesterol levels in CM 250 and/or 500 mg·kg-1 treated groups were lower than HS model group. In microscopical examination, hepatocyte vacuolation with macrovesicles in HS model group was increased compared to negative control, but this finding was decreased in CM 500 mg·kg-1 treated group compared to HS model group. In this study, CM exhibited hepatoprotective effects against hepatic steatosis at mg·kg-1 in ob/ob mice.
김주혜,박희진,배문형,서영하,구은영,오택근,이병석 충남대학교 농업과학연구소 2024 Korean Journal of Agricultural Science Vol.51 No.2
Cordyceps militaris L. (C. militaris ) has been traditionally used as tonic medicine for metabolic syndrome. Cordycepin, has been reported with immunomodulatory, antitumor, and hepatoprotective effect, is the main extract from C. militaris . This study was conducted to evaluate the alcohol degradation and hepatoprotective effect of cordycepin-enriched C. militaris extract (CM) powder in chronic and binge ethanol (ethanol Lieber-DeCarli diet)-fed male C57BL/ 6 Mice. Cordycepin-enriched C. militaris extract powder was orally administered once daily at dose levels of 0, 125, 250, and 500 mg·kg-1·day-1 for 16 days. For evaluating alcohol degradation, ethanol concentration and alcohol dehydrogenase (ADH) and aldehyde dehydrogenase (ALDH) activity were measured in serum. Serum ethanol (EtOH) concentration was decreased at CM treated groups, and the activities of ADH and ALDH were increased dose-dependently at CM treated groups compare to EtOH model group. In clinical chemistry, the values of aspartate aminotransferase (AST) and alanine aminotransferase (ALT) were lower in CM treated groups than those in EtOH model group. Additionally, absolute and relative (to body weight) liver weights were statistically decreased in the CM treated groups compared to the EtOH model group. In conclusion, our study showed that cordycepin-enriched C. militaris extract powder exhibits hepatoprotective effect by upregulating the ADH and ALDH enzyme in an alcoholic liver disease model.
박희진,김주혜,배문형,서영하,구은영,오택근,이병석 충남대학교 농업과학연구소 2024 Korean Journal of Agricultural Science Vol.51 No.2
Hepatic fibrosis refers to the scarring of liver tissue, often resulting from chronic liver injury or inflammation. It is characterized by excessive deposition of extracellular matrix proteins, impairing liver function and potentially progressing to cirrhosis if left untreated. To improve the liver functions, Cordyceps militaris , a species of parasitic fungus known for its medicinal properties, is used in the form of extract. It has been traditionally used in Chinese medicine to boost energy, improve stamina, and support overall health. In this study, we investigated the hepatoprotective effects of Cordyceps militaris extract powder in a liver injury model induced by hepatic fibrosis. Sprague-Dawley (SD) rats were administered Dimethylnitrosamine (DMN) to induce liver injury, and the hepatoprotective effects of Cordyceps militaris extract powder intake were assessed by comparing changes in liver enzyme levels and histological observations. Rats injected with DMN were orally administered Cordyceps militaris extract powder at doses of 0, 125, 250, and 500 mg·kg-1·day-1 for three weeks. After three weeks of treatment, no significant differences were observed in hematological, clinical chemical, organ weight, gross examination, or microscopic examination between the DMN-alone group and the Cordyceps militaris extract powder-treated group. In conclusion, hepatoprotective effects against DMN-induced liver injury in SD rats treated with Cordyceps militaris extract powder were not observed under this study condition.
산화스트레스가 유도된 TM3 세포에서 통캇알리 추출물이 테스토스테론 생성에 미치는 영향
정재인,은상원,이재경,서영하,배문형,김룡,김은지 한국식품영양과학회 2022 한국식품영양과학회지 Vol.51 No.7
통캇알리 추출물은 선행 동물시험과 인체적용시험에서 테스토스테론을 증가시킴으로써 남성갱년기 증상 개선 가능성이 제시되었으나 테스토스테론 증가 기전에 대해 밝혀지지 않았다. 본 연구에서는 H2O2로 산화스트레스를 유도한 TM3 세포에 통캇알리 추출물이 테스토스테론 수준과 테스토스테론의 생성과 전환에 관여하는 효소의 발현을 조사함으로써 테스토스테론 증가 기전을 밝히고자 하였다. TM3 세포에 50 μM H2O2로 산화스트레스를 유도한 경우는 테스토스테론 수준이 유의적으로 감소하였고, 콜레스테롤 운반체로 작용하는 StAR 발현과 테스토스테론 생성에 관여하는 3β-HSD와 CYP17A1 발현이 유의적으로 감소하였다. 반면 테스토스테론 전환에 관여하는 5α-reductase와 aromatase의 발현은 50 μM H2O2 처리에 의해 유의적으로 증가하였다. H2O2로 산화스트레스를 유도한 TM3 세포에 통캇알리 추출물을 여러 농도(10, 25, 50 및 100 μg/mL)로 처리한 경우 테스토스테론 수준이 유의적으로 증가하였다. 통캇알리 추출물 처리에 의해 StAR, 3β-HSD 및 CYP17A1 발현이 유의적으로 증가하였으나 5α-reductase와 aromatase 발현이 유의적으로 감소하였다. 이는 통캇알리 추출물이 미토콘드리아 내로의 콜레스테롤 이동과 테스토스테론 생성을 증가하고 테스토스테론 전환을 감소함으로써 산화스트레스에 의한 테스토스테론 감소를 개선함을 나타내며, 테스토스테론 감소에 의한 남성갱년기 증상을 개선할 수 있는 가능성을 제시한다.
인삼 뿌리썩음병균에 항균활성이 있는 방선균 BK185의 분리 및 특성
김병용(Byung-Yong Kim),배문형(Mun-Hyung Bae),안재형(Jae-Hyung Ahn),원항연(Hang-Yeon Weon),김성일(Sung-Il Kim),김완규(Wan-Kyu Kim),오동찬(Dong-Chan Oh),송재경(Jaekyeong Song) 한국농약과학회 2014 농약과학회지 Vol.18 No.4
Ginseng (Panax ginseng C. A. Meyer) is an economically valuable pharmaceutical crop in Korea. In order to find promising biocontrol agents for soil-borne fungal pathogens which infect ginseng roots, we have isolated actinomycete, BK185 from soil. The isolate was investigated for the antifungal activity against to ginseng rot pathogens prior to testing genetic and chemical properties. The strain was identified as Streptomyces sp. using phylogenetic analysis based on 16S rRNA gene sequence. The most closely related species was S. sporoclivatus and S. geldanamycininus with high similarities (>99%). The isolate, BK185 showed positive reaction for PCR detection targeting biosynthetic gene clusters of PKS (Type-I polyketide synthase) and NRPS (Non-ribosomal polypeptide synthetase) genes. Major metabolite from the BK185 was analyzed by The LC/MS and identified to geldamycin, which was known to contained broad antibacterial, antifungal or anticancer activities. The results provide evidences that the strain, BK185 can be promising biocontrol agent for ginseng organic farming.
박선주,Anshul Sharma,배문형,Ha Chang Sung,김남기,성은주,이혜정 한국식품영양과학회 2020 Journal of medicinal food Vol.23 No.3
This study investigated the effect of Sinetrol-XPur on weight and body fat reduction in overweight or obese Korean participants. Among 100 overweight or obese participants enrolled in a 12-week randomized, double-blinded, controlled study, 86 participants completed the trial. Participants took either two Sinetrol-XPur tablets (450 mg per tablet) or two placebo tablets once a day. Bodyweight, body fat percentage, body mass index (BMI), body fat mass, waist circumference, and various safety parameters were measured. After the 12-week intervention, a significant reduction was observed in the body fat mass (P = .030) by dual-energy X-ray absorptiometry (DEXA), body weight (P = .002), and BMI (P = .002) compared to the placebo. Body fat percentage (P = .007) by DEXA showed a significant reduction in the Sinetrol-XPur group, but no difference compared to the control group. Abdominal metabolic risks by computed tomography and blood biochemistry analysis were significantly decreased in the Sinetrol-XPur group, but there were no differences between the Sinetrol-XPur and placebo groups. Safety profiles were not different between the two groups. These results suggested that Sinetrol-XPur significantly reduced body weight, body fat mass, and BMI in obese Korean subjects, which confirms the antiobesity effect of Sinetrol-XPur in the Korean population.
과산화수소로 유도된 SH-SY5Y 신경세포 사멸에 대한 오미자·칠해목 추출혼합물의 보호효과
박은국,한경훈,이승희,김남기,배문형,서영하,용윤중,정선용,최춘환,Park, Eun-kuk,Han, Kyung-Hoon,Lee, Seung-Hee,Kim, Nam-Ki,Bae, Mun-Hyoung,Seo, Young-Ha,Yong, Yoon-joong,Jeong, Seon-Yong,Choi, Chun-Whan 한국식품영양학회 2018 韓國食品營養學會誌 Vol.31 No.6
In neuronal cell deaths, oxidative stress is normally implicated with a most of these deaths occurring in neurodegenerative disorders such as the Alzheimer's and Parkinson's diseases. In this study, the neuroprotective effects of Schisandra chinensis (SC) and Ribes fasciculatum (RF) extracts on hydrogen peroxide ($H_2O_2$)-induced oxidative stress in neuroblastic cell line were investigated. For an hour, hydrogen peroxide of $100{\mu}M$ concentration, was induced on neuroblastic cells, causing apoptic cell death. For the neuroprotection, a sample of neuroblastic cells had been pre-treated with SC and RF extracts for 24 hours before application of the hydrogen peroxide. No neurotoxic effects were observed in the cells that had been treated by SC and RF. This prove that the treatment of SC and RF extract prevented apoptotic cell death of neuroblastic cell line exposed to oxidative injury. In addition, applying both SC and RF extracts at a 7:3 ratio increased the neuronal cell survival rate, compared to individual treatments of SC and RF extract. This study suggests that SC and RF extracts may be potential therapeutic agents for the prevention of neuronal cell death.
오미자칠해목 추출물의 과산화수소로 유발된 PC12뇌세포 사멸과 스코폴라민으로 유발된 렛드 동물모델에 대한 개선 효과
박은국,한경훈,허재혁,김남기,배문형,서영하,용윤중,정선용,최춘환,Park, Eun-kuk,Han, Kyung-Hoon,Heo, Jae-Hyeok,Kim, Nam-Ki,Bae, Mun-Hyoung,Seo, Young-Ha,Yong, Yoon-joong,Jeong, Seon-Yong,Choi, Chun-Whan 한국식품영양학회 2020 韓國食品營養學會誌 Vol.33 No.3
Cognitive impairment is considered to be key research topics in the field of neurodegenerative diseases and in understanding of learning and memory. In the present study, we investigated neuroprotective effects of Schisandra chinensis (SC) and Ribes fasciculatum (RF) extracts in hydrogen peroxide-induced neuronal cell death in vitro and scopolamine-induced cognitive impairment in Sprague Dawley<sup>®</sup> (SD) rat in vivo. Apoptotic cell death in neuroblastic PC12 cell line was induced by hydrogen peroxide for 1 hour at 100 μM. However, mixture of SC and RF treatment prevented peroxide induced PC12 cell death with no neurotoxic effects. For in vivo experiment, the effect of SC and RF extracts on scopolamine-induced cognitive impairment in SD rat was evaluated by spontaneous alternation behavior in Y-Maze test. After 30 min scopolamine injection, the scopolamine-induced rats presented significantly decreased % spontaneous alteration and acetylcholine level, compared to non-induced group. However, treatment of SC+RF extracts rescued the reduced % spontaneous alteration with acetylcholine concentration from hippocampus in scopolamine-induced rats. These results suggested that mixture of SC and RF extract may be a potential natural therapeutic agent for the prevention of cognitive impairment.