• 제목/요약/키워드: Mortality test

검색결과 826건 처리시간 0.034초

Evaluation of the Single-Dose Toxicity of TA Pharmacopuncture in Rats

  • Hwang, Ji Hye;Jung, Hyo Won;Jung, Chul
    • 대한약침학회지
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    • 제22권3호
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    • pp.171-175
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    • 2019
  • Objectives: TA is a polyherbal extract comprising seven herbs, typically used for the pharmacopuncture treatment of patients with traffic accident- related injuries and musculoskeletal diseases. This animal study was conducted to evaluate the safety of the TA extract, using a single-dose toxicity test. Methods: The dose range and sampling time were first established. Six- week-old Sprague-Dawley rats were administered 1.0 mL of TA or normal saline (control), intramuscularly, for the single-dose toxicity test. The general condition, mortality, and histology of all rats were observed for 2 weeks. Results: No abnormal symptoms or deaths were observed in any group. The body weights of the rats in the TA and control groups were similar. No significant differences in histopathology were observed between the groups. Conclusion : Our study indicates that 1.0 mL of TA extract may be safely administered for pharmacopuncture for treatment of patients in traditional medicine clinics.

일개 상급종합병원 응급중환자실 내 심정지 후 저체온요법을 적용한 환자의 말초 청색증 발생 현황 (Incidence of Peripheral Cyanosis in Patients with Therapeutic Hypothermia after Cardiac Arrest in the Acute Care Unit of a Tertiary General Hospital)

  • 방수연;이영희
    • 중환자간호학회지
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    • 제14권3호
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    • pp.128-140
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    • 2021
  • Purpose : This study aimed to identify the incidence of peripheral cyanosis and the characteristics and clinical results of patients with therapeutic hypothermia after a cardiac arrest. Methods : Data were collected from April to June 2021 via the electrical medical records of 95 patients with therapeutic hypothermia for 72 hours after a cardiac arrest admitted to an acute care unit at a tertiary hospital between January 1, 2016, and December 31, 2019. The data were analyzed using descriptive statistics and a t-test, Mann-Whitney U test, Chi-squared test, Fisher's exact test, and logistic regression using SPSS/WIN. Results : The incidence of peripheral cyanosis was 20%. In the peripheral cyanosis group, peripheral vascular disease, fibrinogen, vasopressor, infection, disseminated intravascular coagulation, acute physiology, chronic health evaluation II score on the second hospital day, nursing intervention, and mortality on the seventh hospital day were higher. The level of fibrinogen and use of vasopressors affected the occurrence of peripheral cyanosis. Conclusion : Considering the influencing variables, careful observation is necessary for patients with high fibrinogen levels and vasopressor use. These results provide basic data to recognize the need for nursing intervention for peripheral cyanosis and encourage nurses to deliver them during therapeutic hypothermia.

5종의 네오니코티노이드계 약제에 대한 솔수염하늘소의 살충활성과 꿀벌독성 (Insecticidal Activity of Japanese Pine Sawyer (Monochamus alternatus) and Toxicity Test of Honeybee (Apis mellifera) using 5 Kinds of Neonicotinoids)

  • 조우성;정대훈;이재선;김현경;서상태;김길하
    • 농약과학회지
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    • 제21권1호
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    • pp.33-41
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    • 2017
  • 5종의 살충제를 사용하여 솔수염하늘소(Monochamus alternatus) 성충에 대한 약제 감수성과 잔효성을 조사하였고 꿀벌(Apis mellifera)에 대한 급성 및 엽상접촉독성과 엽상잔류독성을 평가하였다. 약제 처리 후 48시간 기준 충체 분무법을 이용하였을 시 5종의 네오니코티노이드계 약제 모두 80% 이상의 살충률을 보였다. 그러나 가지침지법에서 80% 이상의 살충률을 보인 약제는 acetamiprid ME, acetamiprid+buprofezin 2종이었다. 솔수염하늘소 성충에 사용한 5종의 약제에 대한 잔효성 실험에서는 모든 약제에 대하여 60-80%의 살충활성이 나타났으나, 약제처리 1일 후에는 약효가 급격히 감소하였다. 솔수염하늘소 성충에 사용한 5종의 약제에 대한 꿀벌의 급성독성과 엽상접촉독성실험에서는 acetamiprid ME가 가장 낮은 독성을 보였다. 꿀벌에 대한 엽상잔류독성을 조사한 결과에서는 acetamiprid ME와 acetamiprid+buprofezin 2종의 약제에서 매우 낮은 잔류독성을 보였다. 그러나 약제처리 1일 후에서는 모든 처리약제의 잔류독성이 10-30% 이하로 감소하였고, 시간이 지남에 따라 잔류독성은 더욱 감소하였다. 이러한 결과를 통해서 본 실험은 5종의 네오니코티노이드계 약제 중 acetamiprid ME가 솔수염하늘소에는 높은 살충활성을 보인 반면에 꿀벌에 대해서는 비교적 낮은 접촉 및 잔류독성을 보였기에 소나무재선충병 매개충 방제에 acetamiprid ME가 효율적으로 이용 될 수 있을 것으로 생각된다.

닭 전염성 후두기관염 생독백신의 안전성과 효능 (Safety and efficacy of modified-live infectious laryngotracheitis vaccines)

  • 한명국;이오수;김재홍
    • 대한수의학회지
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    • 제42권2호
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    • pp.241-251
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    • 2002
  • Modified-live (ML) infectious laryngotracheitis (ILT) vaccines have been widely used as a preventive measure in Korea since the first outbreak of ITL. Recently, it has been observed that chickens vaccinated with the commercially available ML ILT vaccine have sometimes exhibited adverse clinical signs. In this study, we evaluated the quality of the vaccines by comparing titer of each vaccine batch and testing the stability of ILT virus (ILTV) in vaccine diluents and compared the safety and efficacy of vaccines in specific pathogen free (SPF) chickens. The ratio of maximum titer to minimum titer of vaccine produced by most manufacturers was 2 to 15. However, 2 out of 11 manufacturers produced vaccines of which the ratio was 74 to 478. Most vaccines examined were maintained vaccine titers suitable for national regulations within expiry date. However, some vaccines did not keep the titer required for the national regulations. In the test for stability of ILTV in various diluents, ILTV was highly stable in lactose-phosphate-glutamine-gelatin solution, sucrose-phophate-glutamine-albumin solution and some vaccine diluents produced by manufacturers. The safety of ML ILT vaccines was assessed in 10-day-old SPF chicks. Mortality in SPF chicks inoculated intratracheally with one dose of vaccine varied depending on vaccines and some vaccines produced 50-85% mortality. Seven-week-old SPF chickens were vaccinated intraocularly with ML ILT vaccines and then challenged intratracheally with ILT challenge virus 14 days after vaccination. The protection rate was assessed by clinical signs and reisolation of the ILT challenge virus from tracheas taken at day 4 after challenge. There were slight respiratory reactions in some vaccinated chickens after vaccination but these reactions disappeared within 5 days after vaccination. No further clinical signs and death were observed. Protection rate determined by clinical signs and mortality was 100% in all vaccinated groups. However, the challenge virus was isolated from all tracheas of chickens vaccinated with vaccine B or control groups. The challenge virus was also isolated in the trachea of one in five chickens vaccinated with either vaccine F or K, but not in tracheas of chickens vaccinated with other vaccines. In the present study, the stability of vaccine diluents, pathogenicity and protection rate based on reisolation test of the challenge virus were different depending on vaccines produced by eleven manufacturers.

제강슬래그의 매체접촉형 재활용에 따른 중금속 용출특성 및 물벼룩 생태독성 평가 (Leaching and Acute Toxicity Test of Steel-making Slags for Media Contact Recycling)

  • 김동현;조봉석;신원식
    • 한국지하수토양환경학회지:지하수토양환경
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    • 제29권1호
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    • pp.72-83
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    • 2024
  • Most of the slags generated from steel-making industry in Korea are recycled into media-contact aggregates such as fill and cover materials. For their use as media-contact aggregates, the slags must meet not only the waste quality criteria, but also the Daphnia magna acute toxicity test criteria. In this study, Korean Leaching Test ES 06150.e (Korea), Japanese Leaching Test JIS K 0058-1(Japan), Detuch Leaching Test DIN 19529 (Germany), Toxicity Characteristic Leaching Procedure (USA) were conducted for batch leaching test of slags from 6 Korean steel-making companies. In addition, Korean Standard up-flow percolation test (ES 06151.1) mimicking field conditions was conducted to assess the impact of the slag leachate on the surrounding environment indirectly. Heavy metals such as Cr6+ and Zn2+ were detected from both extractant and leachate samples, but all of them did not exceed waste quality criteria of each country. However, Daphnia magna acute toxicity tests using the leachate samples from up-flow percolation test with slag alone and slag/natural soil conditions exceeded ecotoxicity standard (TU=2) due to their high pH (11.3-12.5). After neutralizing the pH of the slag leachate to 6.5~8.5, the Daphnia magna mortality and immobilization were reduced to satisfy ecotoxicity standard. As the reducing pH of slag leachate would be extremely difficult, appropriate recycling management considering the physicochemical characteristics of he slags should be stuided further.

전폐절제술의 임상적 연구 (Clinical Evaluation of Pneumonectomy)

  • 박진규;김민호;조중구;김공수
    • Journal of Chest Surgery
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    • 제29권9호
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    • pp.996-1002
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    • 1996
  • 전북대학교병원 흉부외과학 교실에서는 1979년 8월부터 1995년 8월까지 73례의 전폐절제술을 시행하였으며, 그 중 폐암이 53례, 폐결핵이 10례, 기관지 확장증이 4례, 기타가 6례 이었다. 73례에서 수술사 망율 및 합볏증을 조사하고 술후 6개월에 53명의 환자에서 폐기능 검사를 시행하여 이에 영향을미치는 인자(나이:성별, 병리소견(양성 또는 악성), 동반질환, 술전 폐기능 검사, 수술시간 등)를 통계학적으로 비교 분석하였다. 수술 사망율에 대해서는 술전 최대자발호기량(MW)의 예측치에 대한 백분율(P=0.013)과 수술시간 (P=0.009)이, 술후 합병증에 대해서는 염증성 질환(P=0.015)이, 그리고 술후 6개월후에 시행한 폐기능 검사치에 대해서는 술전 노력성 폐활량의 예측치에 대한 백분율(FVC(%. prod), p=0.0018),술전 1초간 강제 호기량의 예측치에 대한 백분율(FEVI 3%, prod), p=0.0024),술전 최대 자발성 호기량의 예측치에 대한 백분율(MW 3%. prod), p=0.0043) 등이 통계학적으로 의의 있게 나타났다. 결론적으로수술후의 사망율과 합병증을 줄이고 환자의 원활한 활동능력을 얻기 위해 술전의 환자의 전신상태,심혈관계 및 술전의 폐기능과술후의 保맨\ulcorner폐기능에 대한충분한 평가가 있어야 하며, 염증성 질환이 있는 환자는 염증및 분비물의 성상및 정도를 정확하게 평가하여야 할 것으로 사료된다.

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침투이행성 농약의 토양처리 후 토마토잎에서의 잔류에 의한 꿀벌 독성 (Honeybee Toxicity by Residues on Tomato Foliage of Systemic Insecticides Applied to the Soil)

  • 배철한;조경원;김연식;박현주;신관섭;박연기;이규승
    • 농약과학회지
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    • 제17권3호
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    • pp.178-184
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    • 2013
  • 꿀벌에 대한 급성독성이 강한 침투이행성 농약을 대상으로 토양처리 후 흡수이행에 의해 나타나는 꿀벌(Apis mellifera)에 대한 영향을 조사하고자 꿀벌 엽상잔류독성시험을 수행하였다. 본 연구에서는 침투이행성 농약인 dinotefuran 입제와 imidacloprid 입제 그리고 clothianidin 입제를 토마토 정식시 3가지 처리량으로 토양에 파구처리를 하였다. 처리 후 경과시간에 따라 잎을 채취하여 잎에서의 잔류농도를 분석하였고 꿀벌에 노출시켜 꿀벌치사율을 조사하였다. Dinotefuran 입제 처리구의 꿀벌 독성은 7일 이후 꿀벌치사율이 100%로 나타났고 17일 이후 감소하였다. Imidacloprid 입제의 경우 꿀벌 최대치사율이 44~72%로 낮았으나 그 영향은 18일까지 지속된 후 감소하였고 clothianidin 입제는 처리 후 7일에 꿀벌치사율이 100%이었으며 14일 이후 점차 감소하였다. 시험농약 처리 후 경과시간에 따른 잎의 잔류 경향성과 각 시험농약에서 꿀벌의 치사율은 유사한 경향성을 보였으며, 토마토의 생장이 활발한 14일 이후에는 토마토 잎에서의 잔류량이 점차 감소하였고, 실제 사용량 처리시 21일 이후에는 엽상잔류에 의한 꿀벌의 영향도 확연하게 감소하였다.

시설내 토마토녹응애의 발생양상과 유기농업자재 선발 (Occurrence of Tomato Russet Mites, Aculops lycopersici Massee (Acari: Eriophyidae) in a Greenhouse and Selection of an Eco-friendly Organic Insecticide)

  • 최용석;황인수;조신혁
    • 한국응용곤충학회지
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    • 제55권3호
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    • pp.277-283
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    • 2016
  • 무가온 시설토마토 재배지내에서 토마토녹응애 발생양상은 4월 중하순경 최초로 발생하기 시작하여 6월 중하순경 최대 발생을 나타냈다. 하지만 야간기온이 낮을 경우 번식력이 증가하게 되고 주간기온이 높을 경우에는 분산이 활발해져 고온기인 7월에도 지속적으로 증가하는 것으로 조사되었다. 유기농업자재 11종에 대한 토마토녹응애의 살충독성 실내검정 결과, EOIMa (Matrin 0.6%), EOICo (Clove oil 10%)가 500배에서 각각 92.1%와 95.1%로 90% 이상의 살충효과를 보였다. 특히 EOIMa 1,000배에서는 90.4%로 90%, EOIMa 2,000배에서는 88.2%의 높은 살충효과를 보였다. 포장검정에서도 EOIMa 1,000배와 EOICo 500배는 각각 91.5%와 93.9%의 살충효과를 보여 두 약제 모두 농약을 대체하기에 충분하였고 EOIMa의 경우 2,000배에서도 살충효과가 90%에 가까웠기 때문에 예방적 활용도 가능할 것으로 판단되었다.

일부 농촌지역 고혈압자의 사망에 미치는 요인 -12년 추적 연구- (A 12 Year Follow-up Study on the Factors Related with the Death of Hypertensives in a Korean Rural Area)

  • 김기순;박종
    • 농촌의학ㆍ지역보건
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    • 제18권1호
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    • pp.43-54
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    • 1993
  • In order to find the factors associated with the death of hypertensives, 12 year follow-up study for 267 hypertensives whose average blood pressure were 140/90 mmHg or above during their first health screening in 1979-1980 at YongJin Township, Wanju Country, North Cholla Province by the Community Health Team of Chonju Presbyterian Medical Center. The study results are as follows : 1. Initial general characteristics of hypertensives were studied. The age distribution of studied hypertensives showed 27.3% in 40-49 years, 25.8% in 50-59 years, 29.6% in 60-69 years and 17.2% In 70 + years old group. Marital status showed that 82.8% of hypertensives had their wife or husband. 74. 5% were employed on agriculture. 56.5% of hypertensives were illiterate. 2. Among the hypertensives, 91.6% of male and 22.8% of female reported that they were smokers. 82.6% of hypertensives had body mass index lower than 25 Kg/$m^2$. 46.8% of average systolic blood pressure were 160mmHg or above and 54.3% of average diastolic blood pressure were 95mmHg or above. 3. Twenty percent of hypertensives reported that they were treating hypertension at the beginning of follow up, while 68.5% reported that they were not treated. 28.1% reported that they were treating hypertension within 6 months before last follow-up. but 69.3% reported that they were not treated for hypertension within Ii months before last follow up. So 50.6% were classified as never treated group and 41.2% as treated group. 4. Average blood pressure for initial 3 years were calculated. The change of average systolic blood pressure was observed as $161.3{\pm}19.4mmHg$ at the first year, $145.6{\pm}28.0mmHg$ at the second year and $141.4{\pm}37.2mmHg$ at the third year. Average diastolic blood pressure were changed from $96.2{\pm}14.4mmHg$ at the first year to $90.6{\pm}18.6mmHg$ at the second year and $86.4{\pm}22.9mmHg$ at the third year. 5. By the follow-up of hypertensives, 54 hypertensives (46.2%) among 117 male hypertensives and 50 hypertensives (33.3%) among 150 female hypertensives died for 12 years. 42.6% of male death and 52.0% of female death were caused by cerebrovascular diseases. 6. Through univariate statistical test about the association between general characteristics or cardiovascular risk factors of hypertensives and mortality for 12 years, age variable among male and among female age, marital status, occupation. educational level. systolic blood pressure and treatment status were shown as significant variable to influence upon the mortality. 7. By multiple logistic regression analysis, among male age and systolic blood pressure were selected as significant variable to be associated with the total mortality for 12 years. Among female age, systolic blood pressure and treatment status were selected as statistically significant variable to be associated with the total mortality for 12 years.

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고농도 탄산가스 충전에 의한 식품 해충 방제: 거짓쌀도둑거저리와 화랑곡나방의 살충효과에 미치는 노출시간과 식품포장 재질의 영향 (Control of Food Pests by $CO_{2}$ Modified Atmosphere: Effects of Packing Materials and Exposure Time on the Mortality of Tribolium castaneum and Plodia interpunctella)

  • 나자현;남영우;류문일;천용식
    • 한국응용곤충학회지
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    • 제45권3호
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    • pp.363-369
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    • 2006
  • 고농도 탄산가스 충전을 통한 식품 해충 방제에서 식품 포장재질과 노출시간이 화랑곡나방과 거짓쌀도둑거저리의 사망률에 미치는 영향을 조사하였다. 사용된 식품포장 재질은 3겹크라프트지(KKK), 2겹 크라프트-1겹 라미네이트 코팅지(KLK), 2겹크라프트-1겹 HD 코팅지였다(KHK). 탄산가스 농도가 85% 로 충전된 실험구(직경 1.2 m)에 투입 하루 후각 재질의 봉투($9.8{\times}9.8cm$) 내 탄산가스 농도는 KKK($26.67{\pm}0.58%$)에서 다른 재질 봉투에 비해 유의하게 높았다. 화랑곡나방과 거짓쌀도둑거저리의 사망률은 KKK 재질의 봉투에서 다른 재질에 비해 유의하게 높았다. 실제 식품보관 창고($9{\times}4{\times}3m$)에서 대형 포대(20 kg)를 대상으로 한 실험에서도 유사한 결과를 얻었다. 포장재질의 영향은 화랑곡나방 보다 내성이 강한 거짓쌀도둑거저리에서 두드러졌다. 화랑곡나방과 거짓쌀도둑거저리의 사충률은 누적 농도시간 (${\int}_{0}^{t}c{\times}tdc{\approx}{\sum}$농도${\times}$시간)에 회귀하였다. 이 결과를 토대로 탄산가스 충전에 의한 방제효과를 식품포장 재질, 식품의 종류, 누적농도시간과 연관하여 고찰하였다.