BACKGROUND The rise in the incidence of Crohn's disease (CD) suggests the role of an environmental factor in the development of the disease in susceptible individuals. Perinatal exposure to infection has been proposed as such an environmental factor. AIM To investigate the influence of birth date on the development of CD in later life. PATIENTS AND METHOD Four registers of patients with CD,...

Numerous tissue culture chambers have been devised with the object of providing the optical requirements necessary for microscopic observation of the culture, and some of these incorporate a means of perfusion to facilitate changing medium, or to introduce various agents during the period of observation (Carrel, 1931 ; de Haan, 1931, 1938; Lindbergh, 1939; Parker, 1950). A few have been designe...

â  abstract geographical placement of iran especially azerbaijan area in highly strips and alpine-himalayan seismic, causes the earthquakes and their damages as inevitable facts in our country. for this reason, recognition of parameters affecting occurrence of earthquakes and development of new and suitable methods for prediction is necessary in azerbaijan region. analyzing the complex spatio-t...

At the end of my term of office as Editor-in-Chief of Acta Otorhinolaryngologica Italica, i should like to briefly recall some of the results achieved. The principal aim indicated by the Board of the italian Society of otorhinolaryngology – head and neck Surgery (Sio) was to work towards the journal which had then only recently been published in English under the Editor-in-Chief, at that time D...

The online version of this article, along with updated information and services, is rights reserved. Print ISSN: 0028-3878. Online ISSN: 1526-632X. All since 1951, it is now a weekly with 48 issues per year.

Advances in the diagnosis and treatment of patients with maxillary sinus carcinoma have improved patient prognosis. This study investigated changes in demographic and clinical characteristics, treatment methods, and outcomes of patients with maxillary sinus carcinomas during three different 10-year periods spanning 60 years at our university hospital. Of the 233 patients with maxillary sinus ca...

Treatment of patients with IgA nephropathy (IgAN) remains a matter of debate. Why, given that IgAN is the most prevalent glomerulonephritis in several countries, does it cause end-stage renal disease (ESRD) in 15–20% of patients within 10 years of the apparent onset of disease, and account for 10% of incident ESRD patients? At a first look, this results from the heterogeneity of patients referr...

BACKGROUND China pledged to join the global effort to eliminate measles by 2012. To improve measles control strategy, the epidemic trend and population immunity of measles were investigated in 1951-2011 in Beijing. METHODS The changing trend of measles since 1951 was described based on measles surveillance data from Beijing Centre of Disease Control and Prevention (CDC). The measles vaccinati...

Hydroclimatological records are increasingly examined for evidence of trends and shifts that may assist in prediction of future climate change scenarios. This study investigates the trend and step changes in U.S. streamflow over a 52-year period 1951–2002 using data from 639 unimpaired streamflow stations categorized according to the hydrologic unit codes. This is particularly relevant since th...