title: A chronic oral toxicity study of marine collagen peptides preparation from chum salmon (Oncorhynchus keta) skin using Sprague-Dawley rat.
abstract: Due to the increased consumption of marine collagen peptides preparation (MCP) as ingredients in functional foods and pharmaceuticals, it was necessary to carry out safety requirements in the form of an oral chronic toxicity assessment. In order to define the oral chronic toxicity of MCP, a 24-month feeding study of MCP was carried out. Sprague-Dawley (S-D) rats at the age of four-week of both sexes were treated with MCP at the diet concentrations of 0%, 2.25%, 4.5%, 9% and 18% (wt/wt). The actual food intake and bodyweight of the individual animals were recorded periodically until sacrifice. Blood and urine samples were collected for serum chemistry evaluations and urinalysis. Throughout the experimental period, there was no toxicologically significant difference between the vehicle and MCP-treated animals with respect to the survival rate, body weight, food consumption, urinalysis, clinical biochemistry parameter and relative organ weight in either sex. Moreover, incidences of non-neoplastic lesions in MCP-treated groups did not significantly increase compared with the control group. Under the present experimental conditions, no higher risk of chronic toxic effects was observed in MCP-treated rats at the diet concentrations of 2.25%, 4.5%, 9% and 18% (wt/wt) than in the rats fed with basal rodent diet.
authors.affiliation: Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100083, China.|Institution for Nutrition and Food Safety, Chinese Center for Disease Control and Prevention, Beijing 100050, China.
authors.forename: Jiang
authors.initials: J
authors.lastname: Liang
authors.affiliation: Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100083, China.
authors.forename: Xin-Rong
authors.initials: XR
authors.lastname: Pei
authors.affiliation: Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100083, China.
authors.forename: Zhao-Feng
authors.initials: ZF
authors.lastname: Zhang
authors.affiliation: Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100083, China.
authors.forename: Nan
authors.initials: N
authors.lastname: Wang
authors.affiliation: Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100083, China.
authors.forename: Jun-Bo
authors.initials: JB
authors.lastname: Wang
authors.affiliation: Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100083, China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Li
mesh_terms: D000284:Administration, Oral; D000818:Animals; D001835:Body Weight / Q000187:drug effects; D003094:Collagen / Q000633:toxicity*; D004305:Dose-Response Relationship, Drug; D004435:Eating / Q000187:drug effects; D005260:Female; D008055:Lipids / Q000097:blood; D008297:Male; D017685:Oncorhynchus keta / Q000378:metabolism*; D009929:Organ Size / Q000187:drug effects; D051381:Rats; D017207:Rats, Sprague-Dawley; D012867:Skin / Q000737:chemistry*; D015996:Survival Rate; D036401:Toxicity Tests, Chronic
chemical_list: D008055:Lipids; D003094:Collagen