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Biomedical subjects

C Germinario

Publications and source records attributed to C Germinario.

At least 37 records · Page 2Linked to original sources

A simple method to detect HIV-1 protein specificity of IgG intrathecal synthesis in HIV-1 infection.

There is currently no simple method to detect the antigen specificity of anti-HIV-1 IgG intrathecal synthesis (IS). Fifty-seven pairs of serum and corresponding CSF from 29 HIV-1 seropositive patients were adjusted to an identical concentration of total IgG and tested by a commercial HIV-1 Western Blot (WB) assay. IgG IS to a given HIV-1 protein was demonstrated when the corresponding band was present in CSF but absent or significantly less represented in serum. A total anti-HIV-1 IS was defined as the presence of an IS to one or more HIV-1 antigens. Our WB analysis of CSF and serum, compared with conventional mathematical formulas, showed a higher sensitivity in demonstrating anti-HIV-1 IgG IS. Moreover, the method disclosed which HIV-1 proteins represent the target of IgG IS. This procedure is easy to perform and therefore may represent a valuable tool to study central nervous system (CNS) involvement by HIV-1 during different stages of infection.

Antibody Specificity↗

Seroimmunity to poliomyelitis in an Albanian immigrant population.

The immunity against poliomyelitis in a representative sample of the Albanian population recently immigrant to Italy was evaluated. A significant number of the subjects examined lacked protective antibodies against one or more polioviruses. The most prevalent seronegativity related to poliovirus type 3 (41.3%), followed by poliovirus type 1 (21.5%). This result was more consistent in the younger age groups. Our data suggest the hypothesis that this problem arises from the use of a vaccine of discontinuous efficacy caused by defective preservation. A poliovaccine booster dose for all emigree subjects aged less than 15 years is suggested.

Adolescent↗

In vitro production of HIV-1 specific antibodies from "at risk" seronegative subjects.

We investigated a group of well characterized seronegative subjects "at risk" for HIV-1 infection including heterosexual partners of HIV-1 infected subjects and intravenous drug abusers. Pokeweed mitogen (PWM)-stimulated peripheral blood mononuclear cells (PBMCs) were studied for their ability to produce antibodies against HIV-1 structural proteins in vitro. Viral activity by means of HIV-1 isolation from PBMCs and presence of serum p24 antigen were also tested. In 7/42 cases (16.6%) HIV-1 immunoreactive specific antibodies were found, mostly directed against the envelope proteins (gp 120/160). Remarkably, none of these in vitro antibody producers yielded HIV-1 isolation in cell cultures or had detectable serum levels of p24 antigen.

Blotting, Western↗

Urethritis caused by neisseria meningitidis: a case report.

Isolation of N. meningitidis from the male urethra has become more common in recent years and this has been attributed to sexual activities and changes in social attitudes. We describe a further case of acute urethritis caused by transmission of N. meningitidis occurring after a single sexual contact (fellatio) in a heterosexual man. The urethritis was initially diagnosed as being caused by N. gonorrhoeae on a presumptive basis, then attributed to N. meningitidis serogroup Y. This case shows the need of accurate diagnostic procedures in all cases resembling gonococcal urethritis.

Adult↗

[Drug dependence and HIV infection: epidemiologic study in a jail population].

We carried out an epidemiological study in jail community of Bari, in order to evaluate the incidence of drug abuse on the presence of HIV infection among prison inmates. During the period 1988-89, 1609 adults have been examined 40% of whom were intravenous drug abusers, and 221 adolescents, the 9.5% included in the mentioned risk groups. The average of HIV infection in adult population resulted of 15.4%. The 85% of drug abusers were aged 18 to 30. In this population the seroprevalence resulted of 33.4%, in front of the 3.5% of non drug abusers prisoners while only two cases of seropositivity were found in adolescents among the 21 drug abusers (9.5%). Prevalence in drug abusers was not different from that observed in a population of drug abusers who lived in the general population. These results further confirm that prisons represent a reservoir for HIV infection in relation to the drug abuse problem.

Adolescent↗

Efficacy and safety of cefotetan in the treatment of complicated urinary tract infections: clinical experience in a selective and single study.

A single, selective study was performed in order to evaluate the efficacy and safety of cefotetan in the treatment of complicated urinary tract infections (UTI). Of 34 pre-treatment isolated strains, 60% were pluri-resistant to other antibiotics (ampicillin, carbenicillin, piperacillin, cefalotin, aztreonam) but only 21.2% to cefotetan. Pseudomonas aeruginosa and enterococci were resistant to cefotetan. Escherichia coli was the common strain isolated (50%). Nineteen adult patients, with complicated UTI caused by sensitive organisms, were treated with a 1 g intramuscular (i.m.) daily dose. Duration of treatment ranged from 5-15 days, with a mean of 13.75 days. Within 24-48 h and 30 days post-therapy, the infection was cured in 84% and 52% of patients, respectively. Reinfection, relapse or super-infection occurred in 42% of the cases. In only one patient, the infecting organism did not respond to treatment. The clinical response was evaluated in only seven patients with symptomatic UTI. Six of them (85.7%) were cured after therapy and the cure persisted at follow-up. In most cases, the adverse reactions were local, mild and negligible. In only 15.8% and 10.5% of patients, side-effects (diarrhoea, headache, abdominal pain, tachycardia, chill, pain and erythema in the injection site) were severe and moderate. In these cases, the adverse reactions were reversible when the therapy was discontinued. The relationship between treatment and side-effects was doubtful in two cases. It is concluded that cefotetan, administered at 1 g i.m. daily dose, is effective in treating complicated UTI caused by sensitive organisms, pluri-resistant to other antibiotics.

Adult↗

Serum profiles of the regulatory complement proteins during the progression of renal damage in human glomerulonephritis.

Persistent activation of the complement system after escape from control by the regulatory proteins results in an excessive release of split products with inflammatory properties. Serum levels of the regulatory proteins of the complement system (Cl-INH, H, I and AT III) were assayed by the radial immunodiffusion technique in 521 serum samples from 124 patients with idiopathic chronic glomerulonephritis divided into two groups: 81 cases with normal renal function (NRF), and 43 cases with deteriorated renal function (DRF). Significant high mean levels of Cl-INH, H, I and AT III were found in patients with NRF, when they were compared with DRF patient groups. Positive correlations between the regulatory proteins and the corresponding complement components were found in patients with NRF, whereas they were reduced considerably in patients with DRF. Serial measurement of the control proteins showed a decay of the levels of Cl-INH, H and I in patients with progressive impairment of renal function. The presence of high levels of regulatory proteins suggest that a control mechanism may occur in patients with NRF; measurement of these proteins could, therefore, be of prognostic value, as the presence of high levels are indicative of a block of the complement system.

Antithrombin III↗

Plasma fibronectin levels in patients with chronic uremia.

Plasma fibronectin (FN) concentration was measured in patients with idiopathic glomerulonephritis (GN) with or without impaired renal function, in uremic patients undergoing periodic hemodialysis and in renal transplant patients before and after an acute rejection crisis. Results show normal FN levels in idiopathic GN and in renal transplant patients with normal renal function, while significantly lower levels were found in GN with severe renal damage, in uremia before and after dialysis, and in renal transplant patients during acute and chronic graft rejection. Significant correlations between high serum creatinine values and low plasma FN levels were found in renal transplant patients. These findings suggest that the kidney may influence FN levels in the blood since acute (rejection crisis) and chronic renal failure (uremia) cause low concentrations of this protein, while levels tend to return to normal values in patients with uremia after renal transplantation. We hypothesize that the normal kidney removes or perhaps degrades some substances or hormones that may control the release or synthesis of FN. These substances are not dialyzed by cellophane membranes since low plasma FN levels persist after periodic hemodialysis. Only the renal graft provokes an increase of FN in the blood stream.

Adult↗

High level of immunity against poliomyelitis in Albanian refugees in southern Italy.

BACKGROUND: The Apulia region (Southern Italy) may be considered a "border region" which, due to its position, has to face daily arrivals of refugees, especially from Albania. When the exodus of Albanians took place in 1991, a seroepidemiologic study revealed a low seroimmunity to poliomyelitis. In 1996, a large outbreak of paralytic poliomyelitis occurred in Albania. The aim of the study was to evaluate the poliomyelitis immunization level in a sample of Albanian refugees who arrived in the Apulia region between April and May 1997. METHODS: Blood samples were obtained, after informed consent and on a voluntary basis, from 667 subjects housed in seven refugee camps in the Apulia region. Titration of neutralizing antibodies to the three polioviruses was carried out. RESULTS: The findings showed that Albanian refugees had adequate levels of immunity to all polioviruses (95% for poliovirus type 1, 98.6% for poliovirus type 2 and 91.4% for poliovirus type 3). Moreover, a high immunization rate was found in all age groups irrespective of the areas of origin of the refugees and their socioeconomic conditions. CONCLUSION: Our findings show that Albanian refugees in Apulia region have adequate levels of immunity against polioviruses and confirm the effectiveness of mass vaccination campaigns with OPV conducted by WHO in Albania following an outbreak of poliomyelitis in 1996.

Adolescent↗

[Epidemiologic study and cost analysis of an Slamonella enteritidis epidemic].

Salmonellosis is one of the most common forms of foodborne infection. An outbreak of gastroenteritidis associated with a wedding party was investigated, even to value the costs falling on individuals, the health services and society as a whole. One hundred and fifty nine wedding guests were interviewed by phone. Multivariate analysis was used to assess which food were significantly associated with infection. One hundred and thirteen cases were identified; ten stool samples were culture positive for Salmonella enteritidis. Handmade ice-cream and babà (a typical Italian pastry) were significantly associated with infection. The cost of a case was estimated to be between US $ 74 (for non hospitalised patients) and US $ 1,896 (for hospitalised patients). The outbreak was caused by a strain of Salmonella enteritidis and the vehicle of infection were unpasteurised eggs used to prepare the ice-cream. The economic impact of this outbreak was considerable and mainly due to the hospitalisation.

Adult↗