Biomedical subjects

G Labbadia

Publications and source records attributed to G Labbadia.

22 records · Page 2Linked to original sources

PubMedDate not supplied

Association between histological diagnosis of Helicobacter pylori and coronary heart disease: results of a retrospective study.

OBJECTIVE: Several epidemiological and clinical reports have investigated the relationship between Helicobacter pylori (H. pylori) infection and ischemic heart disease (IHD). All studies utilized for the diagnosis of H. pylori infection the antibody titre that is unable to distinguish an actual from a previous H. pylori infection. PATIENTS AND METHODS: We report a retrospective analysis on 149 subjects, who underwent an esophago-gastro-duodenoscopy, in whom the search for H. pylori was histologically performed. RESULTS: The prevalence of IHD is not significantly different from that observed in H. pylori free patients (26% vs 21%, p = 0.527). CONCLUSIONS: The mechanism underlying the possible role of H. pylori needs further investigation and prospective studies to further analyze the relationship between "active" H. pylori infection and ischemic heart disease were necessary.

Adult↗

PubMedDate not supplied

Adrenomedullin assay and its clinical significance.

Adrenomedullin (Am) is a recently discovered peptide, first purified from pheochromocytoma specimens, with a chemical structure similar to that of CGRP and amylin. Adrenomedullin is present in numerous human body tissues and its powerful vasodilatatory activity is thought to play an essential role in cardiovascular and renal homeostasis.

Adrenomedullin↗

PubMedDate not supplied

CGRP and ET-1 plasma levels in normal subjects.

OBJECTIVE: Calcitonin gene-related peptide (CGRP) is a 37 amino acid peptide displaying about 50% homology with amylin which is secreted from the pancreatic islets of Langerhans. The main form, the beta-CGRP, is produced by the enteric nervous system and perivascular nerves of the vasa-vasorum. It represents one of the most powerful vasodilator yet discovered but its role is not yet completely clarified. High levels of this peptide have been shown in patients affected with thyroid medullary carcinoma, phaemocromocytoma and lung carcinoma. Recently circulating levels of CGRP have been found in normal subjects. Endothelin-1 (ET-1), a potent vasoconstrictor peptide, isolated from porcine endothelial cells, is an important regulator of the vascular tone acting in physiological antagonism with atrial natriuretic hormone (ANH). With this study we intended to investigate the presence of any correlation between CGRP and ET-1 in normal subjects. PATIENTS: For the study we considered 20 normal subjects (11 males and 9 females) aged 23 to 50. MEASURES: Plasma levels of CGRP and ET-1 were measured by radioimmunological Kit. RESULTS: A positive and significant correlation between calcitonin gene-related peptide and endothelin-1 was found. CONCLUSIONS: Our results confirms that CGRP and ET-1 have opposing actions on vessels and that they can act together in haemodinamic regulation.

Adult↗

PubMedDate not supplied

[Hepatocarcinoma: epidemiologic and clinical evaluation of 90 patients].

PURPOSE: The aim of the study was to improve the knowledge of epidemiology and clinic of primitive HCC. PATIENTS AND METHODS: Ninety consecutive HCC patients, attending the Medical Therapy Dpt. of Rome University "La Sapienza" were examined: diagnosis of HCC was based on histologic data in 71; in the others the diagnosis derived from ultrasonographics, RMN, TC data. RESULTS AND CONCLUSIONS: Show M/F ratio 3.7/1; in 87% HCC is associated to liver cirrhosis (HCC/CEA); the cumulative presence of HBV and HCV is 75.6%: HCV alone 33.4%, resulting the major risk factor for HCC; patients with associated alcoholism, HBV and/or HCV show evidence of earlier appearance of HCC. Significant higher presence of HBsAg is recorded in HCC without surrounding liver cirrhosis compared to HCC/CE. The cumulative survival rate of treated patients is higher compared with non treated, irrespectively to kind of therapy. The HCC/CE+ patients have significant greater presence of elevated levels of alpha-FP and portal thrombosis compared to a randomized group of patients with liver cirrhosis only. At the end we outline that over 10% of HCC has none note risk factor for hepatic diseases.

Adult↗