• Title/Summary/Keyword: Medical school library

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A Screen for Dual-protection Molecules from a Natural Product Library against Neuronal Cell Death and Microglial Cell Activation (신경세포 사멸과 미세아교세포활성화 억제 동시 가능 천연물질 탐색 연구)

  • Min, Ju-Sik;Lee, Dong-Seok
    • Journal of Life Science
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    • v.25 no.6
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    • pp.656-662
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    • 2015
  • Natural products and natural product structures play a general and highly significant role in drug discovery and development process because it has various merits and potentials for new drug source that have extensive clinical experience, development time contraction, excellent stability and safety. In several neurological disorders, neuronal death and excessive activation of microglia (neuro-inflammation) are observed. A number of drug discovery-related neuronal cell death and neuro-inflammation was studied from natural products, respectively. However, until now, it has not been possible to study dual-protection molecules recorded in the Natural Product library. In the present study, using the natural product-derived library of the Institute for Korea Traditional Medical Industry, we investigated dual-protective molecules against glutamate (a classical excitatory neurotransmitter)-induced oxidative stress mediated neuronal cell death and LPS-induced excessive activated microglial cells (immune cells of the brain). Chrysophanol, extracted from Rheum palmatum, had dual-protective effects against both glutamate-induced neuronal cell death and LPS-induced NO production, triggering proinflammatory cytokines and microglia activation and resulting in neuroinflammation. Flow-cytometry analysis revealed that chrysophanol had a scavenger effect, scavenging glutamate- and LPS-induced reactive oxygen species (ROS) produced by neuronal and microglial cells, respectively. Based on the present study, chrysophanol may have an important protective role against neuronal cell death and neuroinflammation in the brain. The results may be helpful for studying drug development candidates for treating central nervous system disorders.

Assessment of Applicability of Guidelines for Fall Prevention Exercise of Elderly People (노인 낙상 예방을 위한 운동 가이드라인의 적절성과 적용가능성)

  • Lee, Seon Heui;Eun, Young;Bak, Won-Sook;Shin, Gyeyoung;Jeon, Mi Yang;Lim, Kyung-Choon;Lee, Inok;Choi, Hee Kwon;Kim, Minju;Bae, Sun Hyoung;Choi, Mi-Kyung;Park, Jeong Ha;Chung, Jae Hee;Lee, Eun Nam;Lee, Kyung-Sook
    • Journal of muscle and joint health
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    • v.24 no.3
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    • pp.227-237
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    • 2017
  • Purpose: The purpose of this study is to analyze the suitability and applicability of the recommendations for the exercise intervention program in fall prevention guidelines for the elderly. Methods: We searched systematically RISS, KISS, National Assembly Library, KoreaMed, and KM base for Korean guidelines and used OVID-MEDLINE, EMBASE, Cochrane library, Trip database, GIN, NGC, WHO, and CDC for international guidelines including fall prevention exercises for the elderly until August 2016. Results: A total of 11 guidelines were selected as the result of the literature search. After evaluating the quality of guidelines, 9 guidelines were used to analyze the recommendations. A total of 19 recommendations were derived from 9 guidelines. Of 19 recommendations, 12 recommendations were considered to be appropriate and applicable. As a result, we recommend for the elderly to do a single type of balance exercise, strength exercise, aerobic exercise or multiple forms of exercise for 20~30 minutes per a day, 2~3 days or more than 3 days per a week, and consistently for more than 10 weeks. Conclusion: To prevent falls in the elderly, it is important for the elderly to perform a regular balance, strength, or aerobic exercise for 20~30 minutes per a day, 2~3 days per a week.

An Analysis of the Librarians' Perception of Providing CHI Services in Public Libraries (공공도서관에서 소비자건강정보를 제공하는 것에 대한 사서의 인식 조사연구)

  • Noh, Young-Hee;Oh, Sang-Hee
    • Journal of the Korean BIBLIA Society for library and Information Science
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    • v.22 no.3
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    • pp.25-55
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    • 2011
  • These results of surveying public librarians can contribute to clearly identifying the status of CHI(consumer health information) services in Korea and to exploring future developments in CHI services. In this study, we investigated whether or not currently Korean public libraries are offering CHI services, whether or not they provide CHI reference services and the frequency of their use, and analyzed librarians' recognition of the need for Korean public libraries to provide the CHI services. The findings are as follows: 1) 70% of Korean public libraries are equipped with health-related books and medical journals, but the rate of libraries that are building CHI-related websites was very low at 5%. 2) The rate of providing the CHI reference services was only 30% of the surveyed public libraries. 3) 82.1% of public libraries did not provide educational programs related to CHI. 4) 82.1% of public libraries did not provide CHI-related services for vulnerable groups. 5) The rate of providing the CHI-related outreach programs and collaborating with CHI-related institutions was no more than about 20% each. These research findings can induce public librarians to provide CHI services in public libraries, and will contribute to activate the CHI-related research in Korea.

Isolation, Purification, and Identification of Taxol and Related Taxanes from Taxol-Producing Fungus Aspergillus niger subsp. taxi

  • Li, Dan;Fu, Dongwei;Zhang, Yue;Ma, Xueling;Gao, Liguo;Wang, Xiaohua;Zhou, Dongpo;Zhao, Kai
    • Journal of Microbiology and Biotechnology
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    • v.27 no.8
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    • pp.1379-1385
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    • 2017
  • The content of taxol in the bark of yews is very low, and this is not affordable from the environmental point of view. Thus, it is a necessity to look for alternative sources of taxol production to solve its supply. Currently, a large portion of the taxol in the market comes from chemical semi-synthesis, but the semi-synthetic precursors such as baccatin III and 10-deacetyl-baccatin III are extracted from needles and twigs of yew trees. Taxol-producing fungi as a renewable resource is a very promising way to increase the scale of taxol production. Our group has obtained a taxol-producing endophytic fungus, Aspergillus niger subsp. taxi HD86-9, to examine if A. niger can produce the taxanes. Six compounds from the fermentation broth of strain HD86-9 were isolated and identified by $^1H$ NMR, $^{13}C$ NMR, and ESI-MS. The results showed that the six compounds included four taxane diterpenoids (taxol, cephalomannine, baccatin III, and 10-deacetyl-baccatin III) and two non-taxane compounds (${\beta}-sitosterol$ and flavonoid isovitexin). The study verified that the taxanes can be produced by the A. niger, which is very important to taxol production via chemical semi-synthesis. Additionally, the finding is potentially very significant to solve the taxol semi-synthetic precursors extracted from needles and twigs of yew trees, and the precursor production can be easily increased through the culture condition optimization, genetic breeding, and metabolic engineering of the A. niger.

Research Trend on the Clinical Application of Dong-gi Acupuncture Treatment - Focusing on Korean and Chinese Journals - (동기침법의 임상 활용에 관한 연구 동향 - 한국과 중국을 중심으로 -)

  • Lee, Ji Yun;Lee, Seung Wook;Kim, Do Hyung;Koo, Sung Tae;Lee, In
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.26 no.5
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    • pp.599-609
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    • 2012
  • The purpose of this study is to review the trend of Dong-gi acupuncture treatment and to suggest the future direction of its study. We performed literature search using KISS, RISS, NDSL, DBpia, OASIS, National Assembly Library and CNKI. We categorized literatures by year, diseases or symptoms, type of articles, motion types, acupoints, and clinical methods. There were few Korean researches found, but recently research in China has been growing rapidly. According to the researches, Dong-gi acupuncture treatment has been mainly used for painful symptoms of musculoskeletal diseases using distal acupoints. However, its field of application has been widening. It has been shown to be effective for a variety of diseases like cerebrovascular disease or neurologic disorder. We expect Dong-gi acupuncture treatment to be widely applied for various diseases and more clinical studies performed to prove the curative effect on various diseases.

Synergistic antitumor activity of sorafenib and MG149 in hepatocellular carcinoma cells

  • Moon, Byul;Park, Mijin;Cho, Seung-Hyun;Kim, Kang Mo;Seo, Haeng Ran;Kim, Jeong-Hoon;Kim, Jung-Ae
    • BMB Reports
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    • v.55 no.10
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    • pp.506-511
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    • 2022
  • Advanced hepatocellular carcinoma (HCC) is among the most challenging cancers to overcome, and there is a need for better therapeutic strategies. Among the different cancer drugs that have been used in clinics, sorafenib is considered the standard first-line drug for advanced HCC. Here, to identify a chemical compound displaying a synergistic effect with sorafenib in HCC, we screened a focused chemical library and found that MG149, a histone acetyltransferase inhibitor targeting the MYST family, exhibited the most synergistic anticancer effect with sorafenib on HCC cells. The combination of sorafenib and MG149 exerted a synergistic anti-proliferation effect on HCC cells by inducing apoptotic cell death. We revealed that cotreatment with sorafenib and MG149 aggravated endoplasmic reticulum (ER) stress to promote the death of HCC cells rather than adaptive cell survival. In addition, combined treatment with sorafenib and MG149 significantly increased the intracellular levels of unfolded proteins and reactive oxygen species, which upregulated ER stress. Collectively, these results suggest that MG149 has the potential to improve the efficacy of sorafenib in advanced HCC via the upregulation of cytotoxic ER stress.

A Systematic Review of the Variables Related to Post-Traumatic Stress Disorder in Firefighters (소방공무원의 외상 후 스트레스 장애 관련변인에 관한 체계적 문헌고찰)

  • Kang, Min-Ju;Kim, Young-Hwa;Han, Seung-Woo
    • Fire Science and Engineering
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    • v.33 no.2
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    • pp.164-172
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    • 2019
  • This study examined the Post-Traumatic Stress Disorder (PTSD)-related variables of firefighters through a systematic literature review. Electronic databases were searched, including RISS, National Assembly Library, NDSL, KmBase. The search terms were PTSD, Post-Traumatic Stress, Post-Traumatic Stress Disorder and Firefighter. Eleven studies from 146 references screened were included. All studies were non-experimental and correlational analyses. The positive correlation factors were age, duration of work, traumatic events, frequency of mobilization, number and strength of traumatic events experienced, work burden, coping method, D-type personality, depression, and anger rumination. The negative correlation factors were resilience, social support, self-esteem. To improve the mental health of firefighters in the future, professional intervention programs should be constructed to improve resilience, social support, and self-esteem, which are protective factors of PTSD.

Effect of Complementary Medicine on Pain Relief and Wound Healing after Cesarean Section: A Systematic Review

  • Niazi, Azin;Moradi, Maryam;Askari, Vahid Reza;Sharifi, Neda
    • Journal of Pharmacopuncture
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    • v.24 no.2
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    • pp.41-53
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    • 2021
  • Objectives: Cesarean sections are one of the common surgical procedures around the world. Management of cesarean section side effects, including pain, hematoma, delayed wound healing, is of particular importance in maintaining maternal health and ability to care for the baby. The tendency to use complementary medicine strategies is on the rise because of the easy treatment with low side effects. The purpose of this study was to systematically review the efficacy and safety of clinical trials performed in Iran and worldwide on the effect of complementary medicine on pain relief and wound healing after cesarean section. Methods: PRISMA checklist was followed to prepare the report of this systematic review. The search process was carried out on databases on databases of Magiran, SID, Iran Medex, Scopus, Pub Med, Science direct, Medline and Cochrane library using keywords of cesarean, pain, wound healing, Herbal medicine, acupressure, massage, complementary medicine and their Persian equivalent and all possible combinations, from inception until February 2020. We used the Jadad scale to assess the quality of the searched articles. According to the Jadad scale, the articles with a score of at least 3 were included in the study. Results: Finally, 28 clinical trials (with a sample size of 3,245) scored at least 3 on the Jadad scale were included into the analysis. This article reviewed 13 articles on medicinal herbs, 4 articles on massage, 1 article on reflexology, 2 articles on acupressure. Conclusion: According to the present review, the use of medicinal herbs was the most common method of complementary medicine in pain relief and wound healing after cesarean section.

Information Poverty Viewed Through the Families of Children With Developmental Disabilities (발달장애아 가족의 정보빈곤 양상에 관한 연구)

  • Seo, Ok-Youn;Chang, Durk-Hyun
    • Journal of the Korean BIBLIA Society for library and Information Science
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    • v.19 no.2
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    • pp.107-128
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    • 2008
  • The purpose of this study is to portray the phenomena of information poverty of the families of children with developmental disabilities. The focus was especially put on investigating their information needs of everyday lives and information-seeking behaviors. The sample group includes six children with developmental disabilities and their families, mainly mothers. The investigation was conducted by the participant observation and in-depth interviews. The study found out that they sought the formal information sources such as medical specialists and special agencies first with which they were not satisfied. As a result, they rather relied on informal information sources. And the information from 'the group of families of children with developmental disabilities' was thought to be the most reliable information for them. In terms of information related behaviors, the strongest information needs were regarding the children's special education, especially to the school education, and they made effort to seek reliable information. They, however, tended to passively treat their personal concerns that are not related to their disabled children. This study found out that their information poverty is in terms of the information environment, information sources and their attitude to information, and that it comes from the external(social) factors as well as internal(individual) ones.

A Review on Treatment of Somatization Disorder in Traditional Chinese Medicine (신체화 장애에 대한 중의학 연구동향)

  • Kim, Hyo-seop;Bae, Jin-soo;Lee, Seung-Hwan;Lim, Jung-Hwa;Seong, Woo-Yong
    • Journal of Oriental Neuropsychiatry
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    • v.28 no.3
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    • pp.217-230
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    • 2017
  • Objectives: This study was conducted to review studies on somatization disorder in traditional Chinese medicine. Methods: We reviewed studies in the China National Knowledge Infrastructure (CNKI) to 2017. Keywords were 軀體化障碍, Somatization disorder, somatic symptom disorder. We included Randomized Controlled Trial (RCT), and excluded non-Randomized Controlled Trial (nRCT), non-related somatization disorder or traditional Chinese medicine, non-clinical trials, dissertations for degrees. Jadad scale and Cochrane Library's Risk of Bias (RoB) were used for assessment of the quality of studies. Results: Twelve studies were selected. The Chinese Classification of Mental Disorders-3 (CCMD-3) was most frequently used as diagnostic criteria for somatization disorder. As for outcome measurement, Hamilton Rating Scale for Depression (HAMD) was used most commonly. Meta-analysis of 10 studies revealed effective rate of Chinese Herbal Medicine groups (CHM) was significantly higher than Western Medicine groups (WM) (RR: 1.14, 95% CI: 1.02 to 1.27, p=0.02, $I^2=40%$). There was no significant difference in effective rate of CHM+WM and WM (RR: 1.12, 95% CI: 0.84 to 1.49, p=0.46, $I^2=83%$). And also, effective rate of Acupuncture group (Acu) revealed no significant difference compared to that of WM (RR: 1.17, 95% CI: 0.95 to 1.44, p=0.13, $I^2=84%$). For HAMD, there was significant difference in CHM vs, WM group and Acu vs. WM group. Quality of selected 12 RCTs was low. Conclusions: Therapies practiced in traditional Chinese medicine may be effective options for somatization disorder. treatment. For further clinical studies in Korean medicine, this study could be groundwork for development of diagnosis and treatment on somatization disorder.