• 제목/요약/키워드: science laboratory

검색결과 15,981건 처리시간 0.047초

Inhibitory Effect of Clavicepitaceae on Serotonin Release out of Human Platelets and Human Platelet Aggregation

  • Cho, Hyun-Jeong;Ham, Hye-Seon;Lim, Chang-Ryul;Park, Sun-A;Kang, Hyo-Chan;Ju, Young-Cheol;Park, Hwa-Jin
    • 대한의생명과학회지
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    • 제10권1호
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    • pp.9-13
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    • 2004
  • We have investigated the effects of hypha-water extracts (HWE), fruit body-water extracts (FWE) and cordycepin from Cordyceps militaris on serotonin release out of human platelets and human platelet aggregation. HWE and FWE inhibited the release of [$^3H$]-serotonin from human platelet stimulated by thrombin (2 U/ml) or collagen (20$\mu$g/ml) in a dose-dependent manner. Furthermore, cordycepin, a major component of Cordyceps militaris, inhibited the human platelet aggregation induced by collagen (10$\mu$g/ml) in a dose-dependent manner. These results suggest that cordycepin containing in HWE and FWE may inhibit the serotonin release by suppressing the collagen-induced human platelet aggregation. Accordingly, our data demonstrate that HWE and FWE containing much cordycepin might have antithrombotic and antimigrainous functions.

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Far-Ultraviolet Characteristics of Lupus Loop Region Observed with FIMS

  • Shinn Jong-Ho;Seon Kwang-Il;Min Kyoung Wook;Edelstein Jerry;Han Won-Yong;Korpela Eric;Nishikida Kaori;Adolfo Joe;Kregenow Julia;Feuerstein Michael;Ryu Kwang-Sun;Lee Dae-Hee;Kim Il-Jung
    • 한국우주과학회:학술대회논문집(한국우주과학회보)
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    • 한국우주과학회 2005년도 한국우주과학회보 제14권1호
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    • pp.30-30
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    • 2005
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Morphological and Molecular Phylogenetic Data of the Chinese Medicinal Fungus Cordyceps liangshanensis Reveal Its New Systematic Position in the Family Ophiocordycipitaceae

  • Wang, Yao;Dai, Yong-Dong;Yang, Zhong-Lin;Guo, Rui;Wang, Yuan-Bing;Yang, Zhu L.;Ding, Lei;Yu, Hong
    • Mycobiology
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    • 제49권4호
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    • pp.297-307
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    • 2021
  • A cordycipitoid fungus infecting Hepialidae sp. in Nepal was supposed to be identical to Cordyceps liangshanensis, originally described from southwestern China, and thus, transferred to the genus Metacordyceps or Papiliomyces in previous studies. However, our multi-gene (nrSSU-nrLSU-tef-1α-rpb1-rpb2) phylogenetic and morphological studies based on the type specimen and additional collections of C. liangshanensis revealed that the fungus belongs to the genus Ophiocordyceps (Ophiocordycipitaceae). Therefore, a new combination O. liangshanensis was made, and a detailed description of this species was provided.

4차 산업혁명과 임상검사과학기술에 관한 연구 (Study on the Fourth Industrial Revolution and Clinical Laboratory Science Techniques)

  • 성현호;최광모;정유현;조은경
    • 대한임상검사과학회지
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    • 제51권3호
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    • pp.386-395
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    • 2019
  • 본 연구의 목적은 4차 산업혁명 핵심기술과 연계된 임상검사 과학기술을 소개하는 것이다. 4차 산업혁명 핵심기술 중 인공지능, 사물인터넷, 블록체인, 로봇, 나노기술, 총 5개의 핵심기술을 테마별 분석 연계하였다. 임상병리사의 업무범위는 검사의 학검사, 병리검사, 임상생리검사이다. 검사의학 분야의 최근기술은 73개, 병리학 분야는 27개, 임상생리학 분야는 47개로 조사하였다. 4차 산업혁명과 임상검사과학기술 연계는 인공지능은 4개, 사물인터넷 3개, 블록체인 4개, 로봇 3개, 나노기술 15개로 조사하였다. 본 연구의 제한점은 모든 자료를 수집 분석에는 한계가 있었다. 비임상분야는 분석하지 못했다. 그리고 타당성 확인이 없었고 비슷한 연구가 없었다. 결론으로 4차 산업혁명 핵심기술과 임상검사과학기술은 밀접한 관련이 있다. 따라서 임상검사과학기술의 사회적 이익과 분야별 관련 후속 연구가 필요하다.

Current Evidence on the Association between rs3757318 of C6orf97 and Breast Cancer Risk: a Meta-Analysis

  • Hong, Yuan;Chen, Xue-Qin;Li, Jiao-Yuan;Liu, Cheng;Shen, Na;Zhu, Bei-Bei;Gong, Jing;Chen, Wei
    • Asian Pacific Journal of Cancer Prevention
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    • 제15권19호
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    • pp.8051-8055
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    • 2014
  • Background: A common genetic variant rs3757318, located in intron of C6orf97, was firstly identified to be associated with breast cancer (BC) risk by a genome-wide association (GWA) study. However, subsequent validation studies with different ethnicities have yielded conflicting results. Materials and Methods: We performed a meta-analysis to synthesize all available data for evaluating the precise effect of this variant on BC susceptibility. Results: A total of 8 articles containing 11 studies with 62,891 cases and 65,635 controls were included in this meta-analysis. When compared to the G allele, the rs3757318-A allele was significantly associated with BC risk with the pooled OR of 1.21 (95% CI=1.15 - 1.29, P<0.001) but with obvious between-study heterogeneity (P=0.040). Stratified analysis suggested that diversity of ethnicity along with control source may explain part of the heterogeneity. Similarly, significant associations were also identified in heterozygote, homozygote, dominant and recessive genetic models. Sensitivity and publication bias analyses indicated robust stability of our results. Conclusions: Our present meta-analysis demonstrated that the variant rs3757318 is associated with increased BC risk. Nevertheless, further studies are needed to clarify the underlying biological mechanisms.