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Development and standardization of radioimmunoassay technique for human proinsulin determining and its use in the study of type II diabetes mellitus associated to obesity; Desenvolvimento e padronizacao da tecnica de radioimunoensaio para a determinacao de pro-insulina humana e sua aplicacao no estudo do diabetes mellitus tipo II associado a obesidade

Abstract

The availability of immunoassay methodology for proinsulin is important to define its physiological and pathophysiological significance in humans. Serum concentration of proinsulin are elevated in patients with type II Diabetes Mellitus (NIDDM) and recently diagnosed Type I, so a raised circulating concentration of proinsulin may serve as an early indicator of {beta} cells dysfunction. recently, in NIDDM the serum concentrations of proinsulin and its B-chain-C-peptide junctional split form, des (31-32), were found to correlate with diastolic blood pressure, a risk factor for cardiovascular disease. The development of a sensitive and specific radioimmunoassay (RIA) methodology for proinsulin has been difficult due to its low concentration in serum and the presence of proinsulin conversion intermediates in fluids and tissues. Also other potentially cross-reactive peptides, including insulin and C-peptide, can interfere in the assay. This work describe a highly specific human proinsulin RIA developed by using biosynthetic human proinsulin (hPI) as immunogen, standard and tracer. (author) 133 refs., 17 figs., 36 tabs.
Publication Date:
Dec 31, 1996
Product Type:
Thesis/Dissertation
Report Number:
INIS-BR-3743
Reference Number:
SCA: 550601; PA: AIX-30:050688; SN: 99002164788
Resource Relation:
Other Information: DN: 133 refs., 17 figs., 36 tabs.; TH: Tese (Ph.D.); PBD: 1996
Subject:
55 BIOLOGY AND MEDICINE, BASIC STUDIES; ANTIGENS; BIOSYNTHESIS; BLOOD SERUM; DIABETES MELLITUS; DIAGNOSTIC TECHNIQUES; EVALUATION; GUINEA PIGS; IMMUNE SERUMS; INSULIN; IODINE 125; METABOLIC DISEASES; PRECURSOR; RADIOIMMUNOASSAY
OSTI ID:
702638
Research Organizations:
Instituto de Pesquisas Energeticas e Nucleares (IPEN), Sao Paulo, SP (Brazil)
Country of Origin:
Brazil
Language:
Portuguese
Other Identifying Numbers:
Other: ON: DE99638986; TRN: BR9939131050688
Availability:
INIS; OSTI as DE99638986
Submitting Site:
BRN
Size:
152 p.
Announcement Date:
Dec 13, 1999

Citation Formats

Nascimento, Martha do. Development and standardization of radioimmunoassay technique for human proinsulin determining and its use in the study of type II diabetes mellitus associated to obesity; Desenvolvimento e padronizacao da tecnica de radioimunoensaio para a determinacao de pro-insulina humana e sua aplicacao no estudo do diabetes mellitus tipo II associado a obesidade. Brazil: N. p., 1996. Web.
Nascimento, Martha do. Development and standardization of radioimmunoassay technique for human proinsulin determining and its use in the study of type II diabetes mellitus associated to obesity; Desenvolvimento e padronizacao da tecnica de radioimunoensaio para a determinacao de pro-insulina humana e sua aplicacao no estudo do diabetes mellitus tipo II associado a obesidade. Brazil.
Nascimento, Martha do. 1996. "Development and standardization of radioimmunoassay technique for human proinsulin determining and its use in the study of type II diabetes mellitus associated to obesity; Desenvolvimento e padronizacao da tecnica de radioimunoensaio para a determinacao de pro-insulina humana e sua aplicacao no estudo do diabetes mellitus tipo II associado a obesidade." Brazil.
@misc{etde_702638,
title = {Development and standardization of radioimmunoassay technique for human proinsulin determining and its use in the study of type II diabetes mellitus associated to obesity; Desenvolvimento e padronizacao da tecnica de radioimunoensaio para a determinacao de pro-insulina humana e sua aplicacao no estudo do diabetes mellitus tipo II associado a obesidade}
author = {Nascimento, Martha do}
abstractNote = {The availability of immunoassay methodology for proinsulin is important to define its physiological and pathophysiological significance in humans. Serum concentration of proinsulin are elevated in patients with type II Diabetes Mellitus (NIDDM) and recently diagnosed Type I, so a raised circulating concentration of proinsulin may serve as an early indicator of {beta} cells dysfunction. recently, in NIDDM the serum concentrations of proinsulin and its B-chain-C-peptide junctional split form, des (31-32), were found to correlate with diastolic blood pressure, a risk factor for cardiovascular disease. The development of a sensitive and specific radioimmunoassay (RIA) methodology for proinsulin has been difficult due to its low concentration in serum and the presence of proinsulin conversion intermediates in fluids and tissues. Also other potentially cross-reactive peptides, including insulin and C-peptide, can interfere in the assay. This work describe a highly specific human proinsulin RIA developed by using biosynthetic human proinsulin (hPI) as immunogen, standard and tracer. (author) 133 refs., 17 figs., 36 tabs.}
place = {Brazil}
year = {1996}
month = {Dec}
}