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Biomedical subjects

M Bergomi

Publications and source records attributed to M Bergomi.

46 records · Page 3Linked to original sources
PubMedDate not supplied

[Health databases to assess the incidence of lymphoid malignancies in Italian population].

We tested the usefulness of the National Health Service Databases for investigating the incidence of lymphoid malignancies in an Italian community. We analyzed hospital discharge data, drug prescription, pathologic records and death certificates to identify the new cases of Hodgkin's disease, non Hodgkin's lymphoma, multiple myeloma, and acute and chronic lymphocytic leukemia diagnosed in the municipal population of Reggio Emilia, northern Italy, 1991 through 1996. The completeness of Hospital discharge data was very high, and several incident cases could be identified only through this source. Completeness of the pathologic registry was satisfactory for Hodgkin's disease and non-Hodgkin's lymphoma, and this source independently yielded a few incident cases of lymphoid neoplasms. Analysis of death certificates and drug prescriptions appears to be of limited value in the epidemiology of lymphoproliferative diseases.

Databases as Topic↗
PubMedDate not supplied

[Hygiene education in the Laureate Course of Dentistry and Dental Prosthetics: evaluation of student knowledge about the risk of infection in a dental practice environment].

Hygiene education for dental students is crucial in order to control and reduce the risk of infections in their future professional practices. The aim of this study was to evaluate the improvement in university students' knowledge of infectious disease prevention, dental instruments and environmental decontamination following the Course in Dental Hygiene and Prevention. 595 questionnaires were submitted to dental students at twelve Italian Universities; 335 were filled out before the Course began and 260 at the end of the same course. The students in both the PRE-course and at the POST-course evaluations demonstrated adequate knowledge regarding the transmission of infections in dental practices, knowledge improved following the Hygiene course.

Adult↗
PubMedDate not supplied

Biological response to noise and other physical stressors in places of entertainment.

The present study was designed in order to evaluate if the stressors produced in discotheques, and in particular high levels of noise, may lead to the impairment of some psychophysiological functions. The survey was carried out on 34 students who were exposed to noise in a discotheque (with levels ranging from 90 to 103 dBA) and to other environmental stressors (vibrations, psychedelic lights) for a period of five hours. The same subjects were examined on another day in the absence of relevant acoustical and visual stimulations. Biochemical (urinary catecholamines and cortisol) and cardiovascular (blood pressure and heart rate) indicators of stress were measured. Selected psychophysiological functions (reaction-time task and visual acuity) and some personality traits were also estimated. An increase in urinary excretion of epinephrine, norepinephrine, dopamine and cortisol was observed in most of the subjects during their presence in the discotheque in comparison to the control condition. A moderate variation was found with reference to cardiovascular parameters. No significant variation of reaction time was observed in performance tasks, while a significant impairment of visual stereoscopic perception was detected after exposure to stressors in the discotheque. The preliminary findings suggest that physical stressors, and, in particular, noise, may be related to a marked activation of the neuroendocrine system and impairment of some sensory functions.

Adult↗
PubMedDate not supplied

[Blood, teeth and hair: 3 different materials used to evaluate exposure to lead and cadmium in children living in an industrial zone].

There is a general agreement that children are a population at increased risk with respect to lead and cadmium exposure and to adverse health effects resulting from increased exposure. Different biological indicators such as blood hair and teeth have been used to evaluate lead and cadmium exposure in humans. However, up to date, it has not been established which is the best indicator to provide an assessment of internal exposure. The aim of the present study was to examine the levels of lead and cadmium in hair, blood and teeth of children living from birth in an industrialized area near Modena. The relationship between these indicators of exposure and children characteristics such as sex, weight, height, blood pressure and smoking habits of parents was also examined. 142 children (71 males and 71 females) representing 20.8% of those aged 6-7 years living in Sassuolo (Modena) have been included in the study. The geometric means of lead in blood, hair and teeth were 11.2 micrograms/dl, 7.24 micrograms/g and 6.16 micrograms/g, respectively. Hair lead were significantly related to both blood and teeth values (r = 0.226, p = 0.007 and r = 0.186, p = 0.027, respectively). Mean cadmium concentrations were 0.47 mu/l in blood, 0.17 micrograms/g in hair and 47.9 ng/g in teeth and no significant correlation was observed between the three biological matrixes examined. Significant correlations were found between lead and cadmium in both hair (r = 0.427, p = 0.000) and teeth (r = 0.224, p = 0.007). In addition, for lead content in teeth, a significant difference between boys and girls was observed; females showed higher values than males (6.77 micrograms/g vs 5.61 micrograms/g; t = 2.23 p = 0.028). Taking into account the individual characteristics of children, a negative relationship was found between Pb levels in teeth and height (r = -0.217, p = 0.024). Systolic blood pressure values were positively associated to cadmium hair levels in males but not in females (r = 0.281; p = 0.053). From the results of the present study it appears that blood, hair and teeth provide different information to predict lead and cadmium exposure of children. Hair seem to be a useful global indicator of total environmental pollution.

Cadmium↗