Endocrine disruption of cadmium in rats using the OECD enhanced TG 407 test system / 生物医学与环境科学(英文)
Biomedical and Environmental Sciences
;
(12): 950-959, 2014.
Article
in English
| WPRIM
| ID: wpr-264632
ABSTRACT
<p><b>OBJECTIVE</b>To evaluate the endocrine disrupting effects of cadmium (Cd) using OECD enhanced TG407 test guideline.</p><p><b>METHODS</b>Sprague-Dawley (SD) rats were randomly divided into six groups and accordingly administered with 0, 1, 2.5, 5, 10, 20 mg/kg•BW/day of Cd by gavage for 28 days. Body weight, food consumption, hematology, biochemistry, sex hormone levels, urinary β2-microglobulin, organ weights and histopathology and estrous cycle were detected.</p><p><b>RESULTS</b>Cd could significantly decrease animals' body weight (P<0.05). Serum luteinizing hormone (LH) at 10-20 mg/kg•BW groups and testosterone (T) at 2.5 and 10 mg/kg•BW groups decreased significantly (P<0.05). However, no statistically significant change was found in urinary β2-microglobulin among Cd-treatment groups (P>0.05). Endpoints related to female reproduction including uterus weight and histopathological change at 10-20 mg/kg•BW groups showed significant increase (P<0.05). While among male rats in 2.5, 10, 20 mg/kg•BW groups, weight of prostate, thyroids, and seminal vesicle glands significantly decreased (P<0.05). Moreover, no histopathological change was observed in kidney.</p><p><b>CONCLUSION</b>Results suggested that Cd can cause endocrine disrupting effects in SD rats. Comparing with possible renal toxicity of Cd, its toxicity on endocrine system was more sensitive.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Urine
/
Uterus
/
Blood
/
Body Weight
/
Cadmium
/
Random Allocation
/
Beta 2-Microglobulin
/
Rats, Sprague-Dawley
/
Eating
/
Organisation for Economic Co-Operation and Development
Type of study:
Practice guideline
Limits:
Animals
Language:
English
Journal:
Biomedical and Environmental Sciences
Year:
2014
Type:
Article
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