background : animal models have been proven useful in elucidating the details of interaction between pathogenic bacteria and their human hosts, in addition to assessing the efficacy of therapeutic compounds and vaccines. in this study, we investigate the colonization of helicobacter pylori ( h. pylori ) in experimentally-infected guinea pigs over a six-month period. materials and methods: a bac...

In this study seven plant species were collected from the forest of Arasbaran located in the northwest of Iran. Sampling was conducted in May and August and roots were used for calculating vesicular arbuscular mycorrhizal colonization percentage during the same period. Fine roots were separated, washed and put in FAA solution as a fixative. Through the time, root colonization of all plant speci...

mycorrhizal status of pistachio seedling in kerman province in regard to region and some soil properties and also symbiotic potential of sorghum, clover and onion isolates with pistachio seedling were evaluated in this research. 72 samples of pistachio nurseries and 67 samples of sorghum, clover and onion farms were gathered from kerman province and mycorrhizal colonization percent of their roo...

background: group b streptococcus is regarded as a potential factor for adverse outcomes of pregnancy such as preterm birth. objective: to study the association of maternal vaginal colonization with group b streptococcus (gbs) and preterm labor. materials and methods: from april 2005 to may 2006, vaginal culture for gbs were conducted in 101 laboring women with a gestational age of 24-37 weeks ...

Mycorrhizal association in seven plants grown in Arasbaran forest located in the north west of Iran was investigated. The soil samples were collected from the plants rhizosphere. Physico-chemical properties of rhizosphere soils like soil texture, pH, EC and some extractable nutrients such as N, P and K were recorded. The number of spores in rhizosphere and percentage of root mycorrhizal coloniz...

Group B Streptococcus (GBS) is a leading cause of serious neonatal infections. Although great progress has been made in preventing prenatal GBS, its colonization rate in different regions ofIran remains unknown. The objective of this study was to determine the colonization rate of GBS in pregnant women in Hamadan city, Central west of Iran. A group of 544 pregnant women were randomly selected a...

acidic ph of stomach, which is a normal physiological barrier against bacterial overgrowth, would increase by stress ulcer prophylaxis initiation and may lead to bacterial colonization and play as a source for infection transmission to the respiratory system which results in ventilator related pneumonia in patients admitted to the intensive care units (icus). therefore, finding methods to decre...

pneumocystis jirovecii causes pneumocystis pneumonia (pcp) in immunocompromised patients with a high rate of morbidity and mortality. colonization with this fungus may stimulate pulmonary inflammation or lead to pcp in susceptible patients. the epidemiology of this infection and routs of its transmission has poorly studied in iran. we examined pneumosystis colonization in patients with various ...