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[Relationship between immunoreactive insulin and plasma somatomedin-C/insulin-like growth factor-I concentration in childhood obesity]. 1994

I Ilyés, and I Mahunka, and B Sári
Debreceni Orvostudományi Egyetem, Gyermekklinika.

Childhood obesity may be characterised by basal and reactive hyperinsulinemia, reduced growth hormone (HGH) responses to various provocative stimuli and increased plasma concentration of somatomedine-C/insulin-like growth factor-I (SM-C/IGF-I). For this reason the relationship between the degree of obesity (i. e. BMI), serum immunoreactive insulin (IRI) and plasma SM-C/IGF-I was investigated in children with obesity (n = 26, age: 13.0 +/- 0.97 years, BMI: 32.8 +/- 5.3 kg/m2). SM-C/IGF-I was increased in obese children compared to the normal range of this age. Significant positive correlations were found between BMI and IRI, between BMI and SM-C/IGF-I, and between IRI and SM-C/IGF-I. These results suggest that SM-C/IGF-I production in obesity is regulated by IRI dependent on BMI and this regulating effect of insulin may be important in obesity since HGH production to provocative stimuli is reduced.

UI MeSH Term Description Entries
D007328 Insulin A 51-amino acid pancreatic hormone that plays a major role in the regulation of glucose metabolism, directly by suppressing endogenous glucose production (GLYCOGENOLYSIS; GLUCONEOGENESIS) and indirectly by suppressing GLUCAGON secretion and LIPOLYSIS. Native insulin is a globular protein comprised of a zinc-coordinated hexamer. Each insulin monomer containing two chains, A (21 residues) and B (30 residues), linked by two disulfide bonds. Insulin is used as a drug to control insulin-dependent diabetes mellitus (DIABETES MELLITUS, TYPE 1). Iletin,Insulin A Chain,Insulin B Chain,Insulin, Regular,Novolin,Sodium Insulin,Soluble Insulin,Chain, Insulin B,Insulin, Sodium,Insulin, Soluble,Regular Insulin
D008297 Male Males
D009765 Obesity A status with BODY WEIGHT that is grossly above the recommended standards, usually due to accumulation of excess FATS in the body. The standards may vary with age, sex, genetic or cultural background. In the BODY MASS INDEX, a BMI greater than 30.0 kg/m2 is considered obese, and a BMI greater than 40.0 kg/m2 is considered morbidly obese (MORBID OBESITY).
D002648 Child A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL. Children
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000293 Adolescent A person 13 to 18 years of age. Adolescence,Youth,Adolescents,Adolescents, Female,Adolescents, Male,Teenagers,Teens,Adolescent, Female,Adolescent, Male,Female Adolescent,Female Adolescents,Male Adolescent,Male Adolescents,Teen,Teenager,Youths
D013002 Somatomedins Insulin-like polypeptides made by the liver and some fibroblasts and released into the blood when stimulated by SOMATOTROPIN. They cause sulfate incorporation into collagen, RNA, and DNA synthesis, which are prerequisites to cell division and growth of the organism. Sulfation Factor,Somatomedin,Factor, Sulfation
D015992 Body Mass Index An indicator of body density as determined by the relationship of BODY WEIGHT to BODY HEIGHT. BMI Quetelet Index,Quetelet's Index,Index, Body Mass,Index, Quetelet,Quetelets Index

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