• 제목/요약/키워드: Biosafety laboratory

검색결과 63건 처리시간 0.024초

The antioxidant activities of Korean Red Ginseng (Panax ginseng) and ginsenosides: A systemic review through in vivo and clinical trials

  • Park, Soo Kyung;Hyun, Sun Hee;In, Gyo;Park, Chae-Kyu;Kwak, Yi-Seong;Jang, Young-Jin;Kim, Bumseok;Kim, Jong-Hoon;Han, Chang-Kyun
    • Journal of Ginseng Research
    • /
    • 제45권1호
    • /
    • pp.41-47
    • /
    • 2021
  • A wide range of studies have steadily pointed out the relation of oxidative stress to the primary and secondary causes of human disease and aging. As such, there have been multiple misconceptions about oxidative stress. Most of reactive oxygen species (ROS) generated from chronic diseases cause oxidative damage to cell membrane lipids and proteins. ROS production is increased by abnormal stimulation inside and outside in the body, and even though ROS are generated in cells in response to abnormal metabolic processes such as disease, it does not mean that they directly contribute to the pathogenesis of a disease. Therefore, the focus of treatment should not be on ROS production itself but on the prevention and treatment of diseases linked to ROS production, including types 1 and 2 diabetes, cancer, heart disease, schizophrenia, Parkinson's disease, and Alzheimer's disease. In this regard, Korean Red Ginseng (KRG) has been traditionally utilized to help prevent and treat diseases such as diabetes, cancer, inflammation, nervous system diseases, cardiovascular disease, and hyperlipidemia. Therefore, this review was intended to summarize in vivo animal and human clinical studies on the antioxidant activities of KRG and its components, ginsenosides.

INTEGRATION OF CONSTRUCTION TECHNIQUES FOR SPECIAL ISOLATION WARDS OF HOSPITAL BUILDINGS

  • Chi-Su Tai ;Sy-Jye Guo
    • 국제학술발표논문집
    • /
    • The 1th International Conference on Construction Engineering and Project Management
    • /
    • pp.627-632
    • /
    • 2005
  • The severe acute respiratory syndrome -SARS virus spreaded rapidly in Asia in 2003 caused a lethal and serious epidemic. Establishing special isolation wards of high-level epidemic prevention has becomes one of the most important tasks of epidemic prevention. Taking the biosafety level of US CDC biology laboratory as an example, the laboratory of the highest level, BL4 and that of the second high level, BL3 are only allowed to handle and research this kind of highly dangerous viruses safely, to ensure the safety of researchers and the surrounding environment.This research aims to study the functions and the design requirements of "special isolation wards", which is equivalent to the high-level biotechnology laboratory, and have an integrated discussion about the design and construction techniques of this kind of wards, expecting to provide a reference for constructing special isolation wards and maintaining operation safely in Taiwan.

  • PDF

A Case-Study of Implementation of Improved Strategies for Prevention of Laboratory-acquired Brucellosis

  • Castrodale, Louisa J.;Raczniak, Gregory A.;Rudolph, Karen M.;Chikoyak, Lori;Cox, Russell S.;Franklin, Tricia L.;Traxler, Rita M.;Guerra, Marta
    • Safety and Health at Work
    • /
    • 제6권4호
    • /
    • pp.353-356
    • /
    • 2015
  • Background: In 2012, the Alaska Section of Epidemiology investigated personnel potentially exposed to a Brucella suis isolate as it transited through three laboratories. Methods: We summarize the first implementation of the United States Centers for Disease Control and Prevention 2013 revised recommendations for monitoring such exposures: (1) risk classification; (2) antimicrobial postexposure prophylaxis; (3) serologic monitoring; and (4) symptom surveillance. Results: Over 30 people were assessed for exposure and subsequently monitored for development of illness. No cases of laboratory-associated brucellosis occurred. Changes were made to gaps in laboratory biosafety practices that had been identified in the investigation. Conclusion: Achieving full compliance for the precise schedule of serologic monitoring was challenging and resource intensive for the laboratory performing testing. More refined exposure assessments could inform decision making for follow-up to maximize likelihood of detecting persons at risk while not overtaxing resources.

열원 및 공조설비의 최적제어시스템 현장 적용성에 관한 연구 (A Study on the Application of the Optimal Control System for Heat Source and HVAC System)

  • 백승재;김진;안병천;송재엽
    • 대한설비공학회:학술대회논문집
    • /
    • 대한설비공학회 2009년도 하계학술발표대회 논문집
    • /
    • pp.1014-1019
    • /
    • 2009
  • The optimal control system for heat source and HVAC system has been developed for minimizing energy consumption while maintaining the comfort of indoor thermal environment in terms of the environmental variables such as time varying indoor load and outdoor temperatures. The optimal set-points of control parameters are supply air temperature and chilled or hot water temperatures. The optimal control study has been implemented for biosafety laboratory by using TRNSYS simulation program in order to investigate energy performance for heat source and HVAC system.

  • PDF

멀티죤 시뮬레이션을 이용한 생물안전 3등급(BSL3)시설의 설계 검증에 관한 연구 (A Study on Verification for the Design of Bio Safety Level 3 Laboratory by using Multi-zone Simulation)

  • 이현우;최상곤;홍진관
    • 대한설비공학회:학술대회논문집
    • /
    • 대한설비공학회 2009년도 하계학술발표대회 논문집
    • /
    • pp.745-750
    • /
    • 2009
  • In Korea, since the implementation of the GMO Law, the intrest of biosafety level 3(BL3) lab. is increasing. In this study, using CONTAM which is applying multizone modelling, the multizone simulation for design verification of BL3 lab. was performed. In BL3 lab., because required air change rate is greater than general estimated air-conditioning load and it is difficult to maintain room pressure difference efficiently, to maintain pressure difference between laboratory rooms is important through sealing condition of doors and proper airflow control of laboratory rooms. In this study, about BL3 lab.(M. tuberculosis research lab.), the multizone simulation for four kind of biohazard scenarios was performed in the case of unexpected spread of contaminants in the laboratory room, anteroom, corridor and inside of BSC. Multizone simulation results show that these approach methods are used as a tool for the design and verification of BL3 lab.

  • PDF

Ginseng total saponin attenuates myocardial injury via anti-oxidative and anti-inflammatory properties

  • Aravinthan, Adithan;Kim, Jong Han;Antonisamy, Paulrayer;Kang, Chang-Won;Choi, Jonghee;Kim, Nam Soo;Kim, Jong-Hoon
    • Journal of Ginseng Research
    • /
    • 제39권3호
    • /
    • pp.206-212
    • /
    • 2015
  • Background: Ginseng total saponin (GTS) contains various ginsenosides. These ginsenosides are widely used for treating cardiovascular diseases in Asian communities. The aim of this study was to study the effects of GTS on cardiac injury after global ischemia and reperfusion (I/R) in isolated guinea pig hearts. Methods: Animals were subjected to normothermic ischemia for 60 minutes, followed by 120 minutes of reperfusion. GTS significantly increased aortic flow, coronary flow, and cardiac output. Moreover, GTS significantly increased left ventricular systolic pressure and the maximal rate of contraction ($+dP/dt_{max}$) and relaxation ($-dP/dt_{max}$). In addition, GTS has been shown to ameliorate electrocardiographic changes such as the QRS complex, QT interval, and RR interval. Results: GTS significantly suppressed the biochemical parameters (i.e., lactate dehydrogenase, creatine kinase-MB fraction, and cardiac troponin I levels) and normalized the oxidative stress markers (i.e., malondialdehyde, glutathione, and nitrite). In addition, GTS also markedly inhibits the expression of interleukin-$1{\beta}$ (IL-$1{\beta}$), IL-6, and nuclear factor-${\kappa}B$, and improves the expression of IL-10 in cardiac tissue. Conclusion: These data indicate that GTS mitigates myocardial damage by modulating the biochemical and oxidative stress related to cardiac I/R injury.

Effects of Panax ginseng and ginsenosides on oxidative stress and cardiovascular diseases: pharmacological and therapeutic roles

  • Hyun, Sun Hee;Bhilare, Kiran D.;In, Gyo;Park, Chae-Kyu;Kim, Jong-Hoon
    • Journal of Ginseng Research
    • /
    • 제46권1호
    • /
    • pp.33-38
    • /
    • 2022
  • Traditionally, Asian ginseng or Korean ginseng, Panax ginseng has long been used in Korea and China to treat various diseases. The main active components of Panax ginseng is ginsenoside, which is known to have various pharmacological treatment effects such as antioxidant, vascular easing, anti-allergic, anti-inflammatory, anti-diabetes, and anticancer. Most reactive oxygen species (ROS) cause chronic diseases such as myocardial symptoms and cause fatal oxidative damage to cell membrane lipids and proteins. Therefore, many studies that inhibit the production of oxidative stress have been conducted in various fields of physiology, pathophysiology, medicine and health, and disease. Recently, ginseng or ginsenosides have been known to act as antioxidants in vitro and in vivo results, which have a beneficial effect on preventing cardiovascular disease. The current review aims to provide mechanisms and inform precious information on the effects of ginseng and ginsenosides on the prevention of oxidative stress and cardiovascular disease in animals and clinical trials.