title: Relationship between body weight and hematological and serum biochemical parameters in female cynomolgus monkeys (Macaca fascicularis).
abstract: Obesity is a risk factor triggering a variety of metabolic diseases. Cynomolgus monkeys (Macaca fascicularis) exhibit spontaneous onset of obesity in adulthood, similar to such onset exhibited by humans. To clarify the characteristics accompanying obesity in female cynomolgus monkeys, we used simple and multiple regression analyses to determine the relationship between body weight and hematological and serum biochemical parameters as well as obesity-related hormones, namely, leptin and insulin. Simple regression analysis showed that body weight was significantly (P < 0.05) correlated with leptin level, insulin level, hemoglobin concentration, hematocrit values, mean corpuscular volume, glucose concentration, and triglyceride concentration. In addition, a multiple regression model containing leptin level, insulin level, mean corpuscular volume, and red blood cell count explained 66.9% of the variance in body weight. Therefore, female cynomolgus monkeys show similar obesity characteristics to humans, i.e., obesity is associated with enhanced synthesis and excretion of leptin in adipocytes, high risk of diabetes mellitus, and high levels of hematocytes. Our results indicate that female cynomolgus monkeys are good models for studying obesity in humans.
authors.affiliation: Tsukuba Primate Center, National Institute of Infectious Diseases, Tsukuba-shi, Ibaraki 305-0843, Japan.
authors.forename: Yang
authors.initials: Y
authors.lastname: Chen
authors.forename: Fumiko
authors.initials: F
authors.lastname: Ono
authors.forename: Takashi
authors.initials: T
authors.lastname: Yoshida
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Yoshikawa
mesh_terms: D000818:Animals; D001786:Blood Glucose / Q000378:metabolism; D001835:Body Weight; D004195:Disease Models, Animal; D004909:Erythrocyte Indices; D005260:Female; D006400:Hematocrit; D006454:Hemoglobins / Q000378:metabolism; D006801:Humans; D007328:Insulin / Q000097:blood; D020738:Leptin / Q000097:blood; D008252:Macaca fascicularis / Q000033:anatomy & histology* / Q000097:blood*; D008992:Monkey Diseases / Q000097:blood / Q000473:pathology; D009765:Obesity / Q000097:blood / Q000473:pathology / Q000662:veterinary; D014280:Triglycerides / Q000097:blood
chemical_list: D001786:Blood Glucose; D006454:Hemoglobins; D007328:Insulin; D020738:Leptin; D014280:Triglycerides