• 제목/요약/키워드: male rats

검색결과 3,321건 처리시간 0.026초

랫드에서 amitraz의 출생 전후 발생 시험 (Pre- and postnatal development study of amitraz in rats)

  • 김성환;임정현;박나형;문창종;박수현;강성수;배춘식;김성호;신동호;김종춘
    • 대한수의학회지
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    • 제50권2호
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    • pp.93-103
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    • 2010
  • This study investigated the potential effects of amitraz on the pre- and postnatal development, behavior, and reproductive performance of offspring of parent rats given amitraz during pre-mating, gestation, and lactation. The test chemical was administered via the drinking water containing 0, 40, 120, and 360 ppm to male rats from 2 weeks before mating to the end of 14-day mating period and to females from 2 weeks before mating, throughout mating, gestation and lactation up to weaning. Based on fluid consumption, the male rats received an average of $0,\;5.7{\pm}1.33,\;13.2{\pm}2.08,$ and $35.8{\pm}3.42$ mg/kg/day amitraz, and the female rats received an average of $0,8.7{\pm}4.42,\;20.1{\pm}9.60,\;and\;47.6{\pm}22.38$ mg/kg/day amitraz, respectively. At 360 ppm, an increase in the incidence of abnormal clinical signs, a suppression in the body weight gain, a decrease in the food consumption and litter size, an increase in the post-implantation loss, and a decrease in the seminal vesicle weight were observed in the parent animals. In addition, a suppression in the body weight gain, a decrease in the grip strength, a delay in the negative geotaxis, an increase in the pre- and post-implantation loss, and a decrease in the number of live embryos were observed in the offspring. At 120 ppm, suppressed body weight gain and reduced food consumption were observed in the parent rats. Suppressed body weight gain and decreased grip strength were also observed in the offspring. There were no signs of either reproductive or developmental toxicity at 40 ppm. Under these experimental conditions, the no-observed-adverse-effect level of amitraz for parent rats and their offspring was estimated to be 40 ppm in rats.

정어리유의 식용유지 대체가 흰쥐의 혈청 지질에 미치는 영향 (Effects of Replacement of Lard and Soybean Oil With Sardine Oil on Serum Lipids in Rats)

  • 최임순
    • Journal of Nutrition and Health
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    • 제20권4호
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    • pp.237-245
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    • 1987
  • Young male rats were fed for 10 and 20 days on different low-fat experimental diets ; 4% lard + 4% soybean oil, 4% sardine oil + 4% lard, 4% sardine oil with vitamin E+ 4% lard, 4% sardine oil with vitamin E+ 4% soybean oil. Lipid peroxide levels in liver were significantly higher in the sardine oil groups but the addition of vitamin Ehad no effects on the lipid peroxide values. Serum total cholesterol showed no significant difference among the groups but HDL-cholesterol in serum was increased in the sardine oil groups. However, the contents of serum triglyceride and phospholipid were unaffected by the replacement with sardine oil.

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개발한 제3세대 항암제의 아만성 독성연구 (Study on the Subacute Toxicity of Anticancer Platinum Complexese)

  • 정광원;노영수;정세영
    • Environmental Analysis Health and Toxicology
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    • 제11권3_4호
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    • pp.1-10
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    • 1996
  • The purpose of this study was to characterise the subacute toxic potency of i.v. administered KHPC-005 and 006. Few test compounds-related toxic effects were observed in body weight gain, clinical signs, urinalysis, hematological parameters and serum biochemical values. Gross necropsy and histopathology revealed no evidance specific toxicity. Our data indicated that no-observed effect level of KI-IPC-005 and 006 were estimated to be 10mg/kg and 4mg/kg in male rats, and 10mg/kg and 1.33mg/kg in female rats, respectively.

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AGE AND GENDER DIFFERENCES IN ACUTE TOXICITY AND BLOOD-BRAIN BARRIER OPENING INDUCED BY SOMAN

  • Kim, Yun-Bae
    • 한국독성학회:학술대회논문집
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    • 한국독성학회 2002년도 Current Trends in Toxicological Sciences
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    • pp.112-112
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    • 2002
  • The age- and gender-related differences in acute toxicity and opening of blood-brain barrier induced by an organophosphate soman were investigated in rats. To assess acute toxicity, young (7 weeks old) and old (12 weeks old) male and female rats were subcutaneously administered with various dose levels of soman.(omitted)

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EFFECT OF PHYSOSTIGMINE PRETREATMENT ON PARATHION TOXICITY IN RATS

  • Kim, Sung-Y;Park, Kwon-H;Lee, Myung-G;Kim, Young-C
    • 한국독성학회:학술대회논문집
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    • 한국독성학회 2002년도 Current Trends in Toxicological Sciences
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    • pp.123-123
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    • 2002
  • Abstract The protective effects of physostigmine against the toxicity of parathion (diethyl-4-nitrophenyl phosphorothionate) were examined in male Sprague-Dawley rats. Physostigmine (100 or 1,000 ㎎/㎏, ip) injected 30 min before decreased the inhibition of acetylcholinesterase (AChE) activities in brain, lung and blood induced by parathion (2 ㎎/㎏, ip).(omitted)

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식이섬유와 Chlorella 첨가식이가 흰쥐의 혈청지질에 미치는 영향 (Effects of Dietary Fiber and Chlorella Added Diets on Lipid Components in Serum of Rats)

  • 조정순;김효진
    • 한국응용과학기술학회지
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    • 제7권1호
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    • pp.37-47
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    • 1990
  • This paper was performed to investigate the effect of dietary fiber and Chlorella added diets on serum composition of blood and histopathological change of liver and kidney in male rats. As the result, pectin added diets have an effect of decrease a serum, cholesterol and lipid of the tissue.