322 research outputs found
In Search of a Lost Father: Adrien Proust (1834–1903), An Almost Forgotten Public Health Pioneer
Objectives: In this communication, we wish to remember the important historical role played by Marcel Proust’s father, the now mostly forgotten Achille-Adrien Proust (1834–1903). Study Design and Methods: His career, scientific interests and, above all, his brilliant intuitions and suggestions in the fight against cholera in the 19th century are recalled. Results and Conclusions: His role in the promotion of a globally effective vision of public hygiene and health is stressed as a bright example for modern physicians fighting contemporary epidemics
Present situation and new perspectives for vaccination against Neisseria meningitidis in Tuscany, Central Italy
Background. In Italy one third of bacterial meningitis are caused by Neisseria meningitidis. In March 2005, the Regional Health Authority of Tuscany included the meningococcal serogroup C conjugate (MCC) vaccine in the recommended vaccination pro- gram with a schedule of three doses to all newborns at 3, 5 and 13 months of age (from 2008 amended to a single dose at 13 months) and a single catch-up dose until age 6.
Objective. To evaluate the impact of the current national and regional immunization strategies against N. meningitidis and to highlight new perspectives for meningococcal disease prevention with the existing tetravalent meningococcal vaccine (ACWY) and with the future incoming meningococcal B vaccines.
Methods. Meningitis incidence rates in Italy and in Tuscany were calculated for the period 1994-2011 and 2005-2011,respectively. Immunization coverage with MCC vaccine in Tuscany and vacci- nation status of meningitis cases were reported. Literature review on meningococcal conjugate vaccine use and recommendation was performed.
Results. A decrease in incidence rates of meningococcal menin- gitis was observed in all age groups involved in the immunization campaign. Immunization coverage with MCC increased progres- sively year by year in Tuscany. A herd immunity effect was meas- ured in unvaccinated age groups. Since 2006 no cases of invasive meningococcal C infection in vaccinated subjects were observed in Tuscany.
Conclusions. Implementation of MCC vaccination in Tuscany was effective in preventing meningococcal C disease, confirming the effectiveness of the vaccine. A new tetravalent (ACWY) con- jugate vaccine is now available and its use in all Italian Regions should be considered.
The full article is free available on www.jpmh.or
Agronomic and Environmental Benefits of Cover Crops in Northern Italy
Cover crops have a number of benefits (reduction of nitrate leaching and of soil erosion, control of weed seed bank, increase of soil organic matter and increase of cash crop yield), but these were seldom quantified in cropping systems of Northern Italy. This experiment aimed to quantify some of these effects, by comparing cover crop species and their management techniques
Sexual behavior, use of contraceptive methods and risk factors for HPV infections of students living in Central Italy: implications for vaccination strategies
The most frequent risk factors related to the infection/persistence
of HPV in the population are an early start of sexual activity,
the number of sexual partners, smoking, and the utilization of
some contraceptive methods. In Italy, HPV vaccine is offered free
of charge to all 12 year-old female adolescents, with a possible
extension to other age groups according to Regional policies.
In order to value the suitability of the current HPV vaccination
strategies in Italy, an epidemiological study on sexual habits in
adolescents and young adults was organized. An anonymous questionnaire
on sexual behavior and risk factors for HPV infection
was administered to 2300 students aged 13-24 years attending
secondary schools and universities in Tuscany during 2008-09.
About 12% of the sample declared to be foreign citizen.
The results highlight the early start of sexual activity among young
students. Particularly, more than half of the interviewed students
declared to be already sexually active. The mean and the median
age of the first sexual intercourse was 15.4 ± 1.4 years and 15
years (25th and 75th percentiles = 14-16), respectively. More than
77% of students at age 16 years declared they already had the
first sexual intercourse, compared with 0.3% of those inf. 12 years.
Generally, females aged 13-16-years, if sexually active, had sexual
contacts with a single partner.
Most students declared to know common contraceptive methods
(male condom and contraceptive pill). However, only half of them
declared a regular use of male condom. These data confirm the
importance of vaccination against HPV for young females before
their sexual debut. In addition, the current multi-cohort strategy
of HPV vaccination in Tuscany (free of charge in the age range
12-16 years) allows also to catch up those girls that have not yet
had their first sexual experiences before 16 years (21.5% according
to our study) but also to those girls already sexually active,
who very rarely are already infected by all vaccine types at 16
years. Our results also show the importance of sexual health education
and of promotion of correct behaviours in schools
WHEAT YIELD AND ANTIOXIDANT ENZYMES RELATIONSHIP UNDER DIFFERENT SOIL WATER CONTENT
The objectives of this study were to examine the relationship between wheat yield cultivars (Sakha 93 and Giza 168) and antioxidant enzymes such as catalase (CAT), superoxide dismutase (SOD), peroxidase (POD), ascorbate peroxidase (APX) and phenylalanine ammonia-lyase (PAL) activities under different soil water content i.e. low, moderate and high content by irrigation at 80% ETo (1280m³/fed.), by 100% ETo (1600m³/fed.) and120% ETo (1920m³/fed.), respectively. Two lysimeter experiments were carried out in two successive seasons i.e. 2006/2007 and 2007/2008 to estimate wheat yield and one experiment in plastic bags carried out of the greenhouse to determine the antioxidant enzymes of 28 days wheat plant under three different soil water content i.e. providing wheat seedlings with aforementioned treatment. Exposing wheat cultivars i.e. Giza 186 or Sakha 93 to water stress by irrigation at 80% ETo (1280 m³/fad.) exerted an increase in CAT, SOD, POD, APX and PAL over those irrigated at 100% ETo (1600 m³/fad.) or at 120% ETo (1920 m³/fad.), but the previous enzyme activities in the tissue of Saka 93 surpassed of that of Giza 168 cultivar. spike weight and weight of 100 grain/plant of Sakha 93 cultivar overcome that of Giza 168 at low soil moisture content (80% ETo), whereas opposite results were obtained at high and moderate water content (120% and 100% ETo) in the first growing season (2006/2007) and spike weight/plant in second growing season (2007/2008). There was a proportional relationship between increasing soil moisture content and grain yield/plant but the difference between moderate water content 100% ETo (1600 m³/fed.) and high water content 120% ETo (1920 m³/fed.) was not significant. Providing 28 days wheat plant with low water content, decreased wheat yield/plant and its attributes comparing with moderate water content for the two studied cultivars. The current study indicates that Sakha 93 cultivar was the most tolerant cultivar compared with Giza 168
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