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Vasoactive intestinal peptide receptor expression in chronic periapical lesions. 2007

J Caviedes-Bucheli, and M M Azuero-Holguín, and G C Moreno, and I L González, and E Mateu, and J F Salazar, and H R Munoz
Department of Graduate Studies, School of Dentistry, Pontificia Universidad Javeriana, Bogota, Colombia. javiercaviedes@cable.net.co

OBJECTIVE To use radioreceptor analysis for evaluating whether vasoactive intestinal peptide (VIP) receptors are present in chronic periapical lesions and to determine whether differences in its expression are found according to the size of the lesions. METHODS Twelve periapical lesions were obtained from teeth diagnosed with chronic apical periodontitis and indicated for endodontic surgery; they were classified according to the size of the lesion in two groups of six samples (lesion size greater or smaller than 5 mm), and then processed and labelled with (125)I-VIP. Binding sites were identified by (125)I-VIP and standard VIP competition assays. Mann-Whitney's test was used to establish statistically significant differences in the VIP receptor expression between groups. RESULTS Vasoactive intestinal peptide receptor expression was found in all periapical lesion samples. There was a statistically significantly higher expression in periapical lesions <5 mm (P < 0.001). CONCLUSIONS Vasoactive intestinal peptide receptors were expressed in chronic periapical lesions with levels inversely proportional to lesion size.

UI MeSH Term Description Entries
D007457 Iodine Radioisotopes Unstable isotopes of iodine that decay or disintegrate emitting radiation. I atoms with atomic weights 117-139, except I 127, are radioactive iodine isotopes. Radioisotopes, Iodine
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D010483 Periapical Diseases Diseases of the PERIAPICAL TISSUE surrounding the root of the tooth, which is distinguished from DENTAL PULP DISEASES inside the TOOTH ROOT. Disease, Periapical,Diseases, Periapical,Periapical Disease
D010485 Periapical Periodontitis Inflammation of the PERIAPICAL TISSUE. It includes general, unspecified, or acute nonsuppurative inflammation. Chronic nonsuppurative inflammation is PERIAPICAL GRANULOMA. Suppurative inflammation is PERIAPICAL ABSCESS. Periodontitis, Acute Nonsuppurative,Periodontitis, Apical,Acute Nonsuppurative Periodontitides,Acute Nonsuppurative Periodontitis,Apical Periodontitides,Apical Periodontitis,Nonsuppurative Periodontitides, Acute,Nonsuppurative Periodontitis, Acute,Periapical Periodontitides,Periodontitides, Acute Nonsuppurative,Periodontitides, Apical,Periodontitides, Periapical,Periodontitis, Periapical
D002908 Chronic Disease Diseases which have one or more of the following characteristics: they are permanent, leave residual disability, are caused by nonreversible pathological alteration, require special training of the patient for rehabilitation, or may be expected to require a long period of supervision, observation, or care (Dictionary of Health Services Management, 2d ed). For epidemiological studies chronic disease often includes HEART DISEASES; STROKE; CANCER; and diabetes (DIABETES MELLITUS, TYPE 2). Chronic Condition,Chronic Illness,Chronically Ill,Chronic Conditions,Chronic Diseases,Chronic Illnesses,Condition, Chronic,Disease, Chronic,Illness, Chronic
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D014660 Vasoactive Intestinal Peptide A highly basic, 28 amino acid neuropeptide released from intestinal mucosa. It has a wide range of biological actions affecting the cardiovascular, gastrointestinal, and respiratory systems and is neuroprotective. It binds special receptors (RECEPTORS, VASOACTIVE INTESTINAL PEPTIDE). VIP (Vasoactive Intestinal Peptide),Vasoactive Intestinal Polypeptide,Vasointestinal Peptide,Intestinal Peptide, Vasoactive,Intestinal Polypeptide, Vasoactive,Peptide, Vasoactive Intestinal,Peptide, Vasointestinal,Polypeptide, Vasoactive Intestinal

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