Ethanol Extract of Ganoderma lucidum Augments Cellular Anti-oxidant Defense through Activation of Nrf2/HO-1

Lee, Yoo-hwan,Kim, Jung-hee,Song, Choon-ho,Jang, Kyung-jeon,kim, Cheol-hong,Kang, Ji-Sook,Choi, Yung-hyun,Yoon, Hyun-Min KOREAN PHARMACOPUNCTURE INSTITUTE 2016 Journal of pharmacopuncture Vol.19 No.1

Objectives: The mushroom Ganoderma lucidum has been widely used as a traditional herbal medicine for many years. Although several studies have focused on the anti-oxidative activity of this mushroom, the molecular mechanisms underlying its activity have not yet been clearly established. The present study investigated the cytoprotective effect of ethanol extract of Ganoderma lucidum (EGL) against oxidative stress (hydrogen peroxide, $H_2O_2$) and elucidated the underlying mechanisms in a C2C12 myoblast cell line. Methods: Oxidative stress markers were determined by using the comet assay to measure reactive oxygen species (ROS) generation and deoxyribonucleic acid (DNA) damage. Cell viability and Western blotting analyses were employed to evaluate the cellular response to EGL and $H_2O_2$ in C2C12 cells. Transfection with nuclear factor erythroid 2-related factor 2 (Nrf2)-specific small interfering ribonucleic acid (siRNA) was conducted to understand the relationship between Nrf2 expression and $H_2O_2$-induced growth inhibition. Results: The results showed that EGL effectively inhibited $H_2O_2$-induced growth and the generation of ROS. EGL markedly suppressed $H_2O_2$-induced comet-like DNA formation and phosphorylation of histone H2AX at serine 139 ($p-{\gamma}H2AX$), a widely used marker of DNA damage, suggesting that EGL prevented $H_2O_2$-induced DNA damage. Furthermore, the EGL treatment effectively induced the expression of Nrf2, as well as heme oxygenase-1 (HO-1), with parallel phosphorylation and nuclear translocation of Nrf2 in the C2C12 myoblasts. However, zinc protoporphyrin IX, a HO-1 inhibitor, significantly abolished the protective effects of EGL against $H_2O_2$-induced accumulation of ROS and reduced cell growth. Notably, transient transfection with Nrf2-specific siRNA attenuated the cytoprotective effects and HO-1 induction by EGL, indicating that EGL induced the expression of HO-1 in an Nrf2-dependent manner. Conclusion: Collectively, these results demonstrate that EGL augments the cellular anti-oxidant defense capacity through activation of Nrf2/HO-1, thereby protecting C2C12 myoblasts from $H_2O_2$-induced oxidative cytotoxicity.

Inhibitory Effect of Black Radish (Raphanus sativus L. var. niger) Extracts on Lipopolysaccharide-Induced Inflammatory Response in the Mouse Monocyte/Macrophage-Like Cell Line RAW 264.7

Hyungsik Jeon,Dawun Yang,Nam Ho Lee,Meejung Ahn,Giok Kim 한국식품영양과학회 2020 Preventive Nutrition and Food Science Vol.25 No.4

Black radish (Raphanus sativus L. var. niger), which is cultivated worldwide, is used in traditional medicine as it aids liver function, gastric secretion, gallbladder function, and gallstone mitigation. In this study, we examined the anti-inflammatory effects of black radish extract (BRE) on the lipopolysaccharide (LPS)- and interleukin (IL)-6-mediated inflammatory responses in the RAW 264.7 cell lines. Our findings show that BRE significantly ameliorated LPS-induced nitric oxide (NO) release and production of pro-inflammatory cytokines, such as IL-1β, IL-6, tumor necrosis factor (TNF)-α,and prostaglandin E2. The levels of cyclooxygenase (COX)-2 and inducible NO synthase (iNOS) in LPS-stimulated RAW 264.7 cells were found to be suppressed by BRE. Further, BRE significantly suppressed the LPS-induced expression of mRNAs encoding COX-2, iNOS, IL-1β, IL-6, and TNF-α in a concentration-dependent manner. BRE treatment significantly inhibited Janus kinase 2 (JAK2) and signal transducer and activator of transcription 3 (STAT3) phosphorylation in IL-6- and LPS-treated RAW 264.7 cells. In addition, BRE decreased the levels of phosphorylated extracellular signal-regulated protein kinases and c-Jun N-terminal kinase under the same conditions. Moreover, BRE induced high nuclear factor erythroid 2-related factor 2 (NRF2) levels and its target gene heme oxygenase 1 (HO-1) in the absence of LPS. These data demonstrate that BRE may be beneficial for treating inflammation through selective immunomodulatory effects, which may be mediated by inhibition of the STAT3/JAK2 and activation of the NRF2/HO-1 signal transduction pathways.

Mapping Algorithm of Semantic Interpretation in Korean Multiple Nominative Constructions

Yoon-Ho Jeon 한국언어연구학회 2019 언어학연구 Vol.24 No.3

This paper investigates the relation between Korean nominal markers (case, topic, focus stress, etc.) and the semantic interpretations each of them induces in multiple nominative constructions (MNC). Adopting Jeon’s (2019b) proposal, which is the revised version of Diesing’s (1992) mapping hypothesis, and Ha’s (2014) applicative approach, I show that in MNCs a generic reading is licensed in the restrictive clause (TopP/FocP) by binding by the null generic operator GEN and an existential/episodic reading can be derived by existential closure in ApplP, which is the nuclear scope. It will be shown that nominative-marked NPs in MNCs are all licensed by an applicative head and are represented in the vP-type projection, ApplP. This mapping structure is supported by the analysis in Jeon (2019b), which presents the evidence against the lexical division of stage- and individual- level predicates, arguing for a distinction dependent on syntactic contexts.

난치성 만성정신분열증 환자의 생활의 질에 미치는 정신사회치료 프로그램의 효과에 대한 예비연구

송동호,배민진,이종호,이홍식,김선경,서호석,김찬형,전지용 大韓神經精神醫學會 1995 신경정신의학 Vol.34 No.4

Objects : Recent studies of psychosocial adjustment after hospitalization have found that the combination of maintenance antipsychotic drug treatment and psychosocial treatment including psychoeducational program are highly predictive of social rehabilitation and reduction of subsequent relapse. Two groups of patients with refractory chronic schizophrenia were preliminarily compared to determine the effect of a psychosocial treatment program on the quality of life in refractory chronic schizophrenics in an open comparative trial. Methods : One group(N=11) was assigned to approximately six months of the psychosocial treatment program(including psychoeducation program and activity program such as interpersonal relationship program, social skill training, self management program, outings, etc), in a group format, twice a week and a fixed maintenance dosage of clozapine ; while scale(QLS) was used to provide an objective measure of changes in patient's psychosocial functioning and a general assessment of psychopathology was made using the Brief Psychiatric Rating Scale(BPRS). Results : Both BPRS total positive score and the QLS total score, especially in the intrapsychic foundation factor of the scale showed a statistically significant improvement in the psychosocial treatment group. But there was no significant change in both BPRS and QLS scores over a 6-month period in the non-psychosocial treatment group. A significant negative correlation was found between the negative symptom and changes of QLS total, instrumental role and common object and activities scores respectively after receiving a 6-month of the psychosocial treatment program. Conclusion : These results suggest that a psychosocial treatment program including the integration of psychoeducation and a skill training oriented activity program serve as an outpatient treatment modality to improve the quality of the life in refractory chronic schizophrenia. To further clarify the effect of psychosocial treatment in chronic schizophrenia, a randomized trial should be done.

AISI D2강 위에 다층으로 증착된 WC-Ti_(1-X)Al_(X)N 코팅의 국부부식 거동에 관한 연구

안승호,이정호,김호건,김정구,한전건 대한금속재료학회 2003 대한금속·재료학회지 Vol.41 No.9

Multilayered WC-Ti_(1-x)Al_(x)N coatings are characterized by periodically repeated structures of lamellae of WC-Ti/WC-Ti_(1-x)Al_(x)N. WC-Ti_(1-x)Al_(x)N coatings of changing Al concentration were deposited on AISI D2 steel by high-ionization sputtered plasma vapor deposition (PVD). The Al concentration could be controlled by using evaporation source for Al and fixing the evaporating rate of other metals. Four kinds of WC-Ti_(1-x)Al_(x)N coatings were prepared: WC-Ti_(0.6)Al_(0.4)N, WC-Ti_(0.53)Al_(0.47)N, WC-Ti_(0.5)Al_(0.5)N and WC-Ti_(0.43)Al_(0.57)N. The corrosion behavior of WC-Ti_(1-x)Al_(x)N coatings was investigated using electrochemical techniques in deaerated 3.5% NaCl electrolyte (galvanic corrosion test, potentiodynamic polarization test, electrochemical impedance spectroscopy and Mott-Schottky method) and surface analyses (GDOES, SEM and EDS). Particular attention was paid to the effect of growth defects on the coating properties related to the corrosion behavior. The results of the coating and substrate galvanic corrosion test showed low galvanic current densities. In the potentiodynamic polarization test and EIS measurement, the corrosion current density of WC-Ti_(0.5)Al_(0.5)N was lower than others and presented higher R_(ct) values than others after 240 h immersion time. This could be attributed to the formation of a Ti oxide, which promotes partial closing of the defects. Capacitance values obtained from EIS as a function of different potentials (C^(-2) vs E) showed that the oxide layer exhibited an n-type semiconductor behavior.

밤 생산 임가의 경영성과 향상을 위한 경영진단 연구

전준헌(Jun-Heon Jeon),원현규(Hyun-Kyu Won),유병일(Byoung-Il Yoo),이호승(Ho-Seung Lee),이숙향(Sook-Hyang Lee),한상열(Sang-Yoel Han) 한국산림휴양복지학회 2012 한국산림휴양학회지 Vol.16 No.4

자연산 점몰개, Squalidus multimaculatus Hosoya et Jeon의 새인두흡충, Clinostomum complanatum (Rudolphi, 1814) 감염

박명애 ( Myoung Ae Park ),서정수 ( Jung Soo Seo ),정승희 ( Sung Hee Jung ),최희정 ( Hee Jung Choi ),전은지 ( Eun Ji Jeon ),지보영 ( Bo Young Jee ),이완옥 ( Wan-ok Lee ),우승호 ( Sung Ho Woo ),이은혜 ( Eun Hye Lee ) 한국어병학회 2011 한국어병학회지 Vol.24 No.2

경상북도 영덕군의 하천에 서식하는 점몰개 spotted barbel gudgeon (Squalidus multimaculatus Hosoya et Jeon)의 근육에서 새인두흡충 Clinostomum complanatum (Rudolphi, 1814)의 피낭유충이 발견되었다. 감염된 점몰개는 "yellow grub"인 기생충의 피낭유충으로 인해 표면이 울퉁불퉁하게 보였으며, 수면위에 힘없이 유영하였고 일부 폐사한 개체도 발견되었다. 분리된 탈낭유충의 형태는 혓바닥 모양이었으며, 크기는 2.85~5.89 mm×0.8~1.99 mm였다. 어체당 1~98 개의 피낭유충을 분리하였으며 평균 감염수는 25개로 나타났다. 특히, 성어크기인 평균 7 cm 정도의 점몰개는 100% 감염되어 있었다. 본 연구는 한국의 자연수계에 서식하는 어류에서 C. complanatum 의해 질병이 발생하고 폐사가 일어난 첫 보고이다. The metacercariae of Clinostomum complanatum (Rudolphi, 1814) were isolated in the whole body muscle of wild freshwater fish, spotted barbel gudgeon (Squalidus multimaculatus Hosoya et Jeon) from the local river in Yeongdeok, Gyeongsangbuk-do, Korea. The infected fish with bumpy body surface by "yellow grub" showed erratic swimming behavior and some fish were died. The isolated excysted metacercariae were tongue shaped and 2.85~5.89 mm × 0.8~1.99 mm in size. 1~98 metacercariae were isolated in individual fish and mean infection intensity was 25. All examined adult spotted barbel gudgeon sizing 7 cm in body length were infected. This is the first report of disease outbreak and mortality caused by C. complanatum infection in wild freshwater fish in Korea.

Protective Effect of Baicalin Against Carbon Tetrachloride–Induced Acute Hepatic Injury in Mice

Park, Sang-Won,Lee, Chan-Ho,Kim, Yeong Shik,Kang, Sam Sik,Jeon, Su Jin,Son, Kun Ho,Lee, Sun-Mee The Japanese Pharmacological Society 2008 JOURNAL OF PHARMACOLOGICAL SCIENCES Vol.106 No.1

<P>This study examined the effects of baicalin, a bioactive flavonoid isolated from <I>Scutellariae Radix</I>, on carbon tetrachloride (CCl<SUB>4</SUB>)-induced liver injury. Mice were treated intraperitoneally with 0.5 ml/kg CCl<SUB>4</SUB> and different groups of animals received 25, 50, 100, and 200 mg/kg baicalin. At 24 h after the CCl<SUB>4</SUB> treatment, the level of serum aminotransferases and lipid peroxidation was significantly elevated, whereas the hepatic glutathione content was decreased. These changes were attenuated by baicalin. The histological studies showed that baicalin inhibited the portal inflammation, centrizonal necrosis, and Kupffer cell hyperplasia, which are the three most common characteristics of CCl<SUB>4</SUB>-induced liver damage. The serum level and mRNA expression of tumor necrosis factor-α were markedly increased by the CCl<SUB>4</SUB> treatment but suppressed by baicalin. The mRNA and protein expression levels of inducible nitric oxide synthase and heme oxygenase-1 increased significantly at 24 h after the CCl<SUB>4</SUB> treatment. Baicalin attenuated the increase in the protein and gene expression of inducible nitric oxide synthase but augmented the increase in those of heme oxygenase-1. These findings suggest that baicalin protects hepatocytes from the oxidative damage caused by CCl<SUB>4</SUB>, and this protection is likely due to the induction of HO-1 expression and the inhibition of the proinflammatory mediators.</P>

Arthroscopic Excision of Heterotopic Ossification in the Supraspinatus Muscle

Lamees A. Altamimi,Erica Kholinne,Hyojune Kim,Dongjun Park,In-Ho Jeon 대한견주관절의학회 2020 대한견주관절의학회지 Vol.23 No.1

Heterotopic ossification is formation of bone in atypical extra-skeletal tissues and usually occurs spontaneously or following neurologic injury with unknown cause. We report a 46-year-old female with right shoulder pain and restricted range of motion (ROM) for 3 months without history of trauma. Magnetic resonance imaging (MRI) showed a lesion within the rotator cuff supraglenoid. Excisional biopsy from a previous institution revealed a heterotopic ossificans (HO). Following repeat MRI and bone scan, histopathology from arthroscopic resection confirmed an HO. The patient demonstrated improved pain and ROM at follow-up. Idiopathic HO rarely occurs in the shoulder joint, and resection of HO should be delayed until maturation of the lesion to avoid recurrence. The current case showed that arthroscopic HO resection provides an excellent surgical view to ensure complete lesion removal and minimize soft tissue damage at the supraglenoid area. Furthermore, the minimally invasive procedure of arthroscopy may reduce rehabilitation time and facilitate early return to work.

韓國産 박과 植物에 관한 本草學的 硏究

全吉煥,宋昊埈,辛民敎 한국전통의학연구소 1998 한국전통의학지 Vol.8 No.1

韓國産 박과 Cucurbitaceae에 속한 植物에 대하여 本草學的으로 文獻을 통하여 調査한 結果 다음과 같이 要約되었다. 1. 植物 總 53種 中 오이속·Cucumis 植物이 10種, 박속·lagenaria 植物 總 6種, 호박속·Cucurbita과 하늘타리속·Trichosanthes 植物이 各各 5種, Melothria 植物이 4種, Hernsleya과 유자속·Momordica 植物이 各各 3種, 뚜껑덩굴속·Aetinostemma, 수박속·Citrullus 과 수세미오이속·Luffa 植物이 各各 2種, 그 外 동아속·Benincasa, Bolbostemma, Corona, Diplocydos, 돌외속·Gymnostemma, Gymnopetalum, Hodgsonia. 산외속·Schizopepon, Sechiam, Thladiantha 植物이 各各 1種의 順으로 調査되어 Cucumis 植物이 가장 많이 나타났음을 알 수 있었다. 2. 植物은 總 19屬 53種으로 調査되었으며 그 가운데 藥用植物은 괄樓, 冬瓜, 南瓜, 甛瓜, 絲瓜 等의 15屬 34種으로서 約 64%를 차지하고 있었다. 3. 植物 中 藥用植物을 藥用 部位別로 分類해보면 種子類 23種, 果實類 19種, 根類 16種, 葉類 11種, 果皮類 10種, 莖·藤類 9種, 체類 4種, 全草類와 果ㅁ類가 各各 3種 그 外 塊莖, 霜, ㅁ, 幼芽, 液汁 및 絡類가 各各 1種의 順으로 調査되어 種子類 藥物이 가장 많이 活用되었다. 4. 藥性에 있어서 寒凉性 藥物이 22種, 平性 藥物이 12種, 溫熱性 藥物이 3種 等으로 나타나 寒凉性 藥物이 가장 많이 있음을 알 수 있었다. 5. 效能에 있어서는 淸熱解毒 藥物이 21種, 利水消腫 藥物이 20種, 潤肺化痰 藥物이 12種, 止痛 藥物과 生津止渴 藥物이 各各 7種 等으로 調査되어 淸熱解毒과 利水消腫 藥物이 가장 많이 나타났다. 6. 有毒 藥物로는 苦瓜, 王瓜, 黃瓜, 苦壺蘆子, 木ㅁ子, 合子草, 羅鍋저, 甛瓜체等으로 나타나 있으나 木ㅁ子를 除外하고는 毒性이 極烈하지 않았다. 以上의 내용으로 보아 韓國産 박과 植物中 藥用植物이 64%를 차지하였고 이 가운데 種子와 果實類 藥用植物이 가장 많았으며 아울러 毒性 藥物이 적어 臨床에 容易하게 使用될수 있을 것으로 생각되며, 同科의 藥用植物에 대하여 實驗的인 硏究가 이루어져야 할 것으로 생각된다. For the purpose of developing Korean Herbalogy with the plants of Cucurbitaceae which grow wild and is plante d in Korea, the these and writings on herbalogy, from literature of successive generations, have been thoroughly investigative and the results obtained were as follows: 1) There were totaled 19 genera and 53 species in Korea and among them medecinal plants are 15 genera, 34 species, some 64% in total but the number of species may be added because of similar plants. 2)According to the oriental name which can be used for medical purpose, the medicinal plants beloning to the Cucurbitaceae wer e classified as Semen 23, Fructus 19, Radix 16, Folium 11, Exocarpium 10, Caulis 9, Herba 3, ect, Thus it was noticed that Semen was the main kind. 3)According to sum of 53 species in Cucurbitaceae they were dassified into Cucumis genera 10, Lageneria genera 6, Cucurbita and Trichosanthes genera 5)Melothira genera 4,Hemsleya and Monordica genera 3, Actinostemma, Citrullus and Luffa genera 2, Benincase, Bolbostemma, Cocc ina, Diploccylos, Gymnostemma, Gymnopetalum, Hodgsonia, Schizopepon, Sechiam and Talandina genera 1 etc. Thus it was noticed that Cucumis genera was the main kind. 4)According to nature and flavour of medicinal plants, they were dassified into cold and cool; 22, balance 12, wormth and heat; 3. Thus it was noticed that cold and cool is the main in nature and flavour of medicinal plants. 5)According to the Properties and Principal Curative action, they were classified into, clearing up heat and toxin 21, drugs for inducing diuresis to allevitae edema 20, drugs for nourishing the lung and resolving phlegm 12, drugs for analegesic and promoting the production of body fluid to quench thirst 7. 6)Comparing to whole medical plants 53 kinds, toxic durgs include minor toxin were 8 kinds. Thus toxic durgs were rare. From this result, It was revealed that the plants for medical purpose in Cucurbitaceae was 64% kinds of the whole, in which semen was mostly abundunt,toxic plants were so rare that it will be used for clinical treatments more easily. It is considered that many dinical experiments and approaches must be continued to use widely.