Objective: Helicobacter pylori has a well-established role in the development of gastric cancer. In vitro studies reveal increased proliferation of the gastric mucosa in the presence of H. pylori infection. It has been also shown that production of some cytokines, such as interleukin-1 beta (IL-1b) is in...

For sexual reproduction of Allium hirtifolium, collected bulbs were planted in the field. In order to develop ovary embryo and seed setting, control self-pollination and natural open pollination took placed using honey bees under cages. Ovary development and seed setting of A. hirtifolium extraordinary were affected by pollination and there was a significant difference between mean effect of se...

in this research, the chemical and microbiological characteristics of white brined cheeses produced with five differen starter cultures, namely: traditional kefir grain, commercial kefir, commercial yogurt, traditional yogurt and commercial cheese starter culture, were examined during 60- day ripening period. results of statistical analysis showed that the type of starter culture had a signific...

Nonadherent mouse spleen cells exhibited poor viability and little or no capacity to form antibodies to sheep red cells in the Mishell-Dutton culture system. Viability and antibody-forming capacity could be restored by addition to these cultures of low concentrations of mercaptoethanol (10(-4)-10(-5)M), or by addition of appropriate numbers of mouse peritoneal macrophages. Macrophage concentrat...

In this research, the survival of probiotic microorganisms in yogurts stored at room temperature (cold chain interruption conditions) was studied. Milk inoculated with yogurt bacteria (mixed culture of Streptococcus thermophilus and Lactobacillus delbrueckii ssp. bulgaricus) and a single probiotic culture (L. acidophilus LA-5 or Bifidobacterium lactis Bb-12 or L. rhamnosus HN001 or L. paracasei...

The direct effect of insulin and insulin-like growth factor-Ion ovarian granulosa cell function in cattle was evaluated by using a serum-free culture system. Granulosa cells were obtained from small (1 to 5 mm) follicles collected from cattle and cultured for 4 days. Culture medium was collected for quantification of progesterone, and cell numbers were determined. Both insulin and IGF-I signifi...

development of modern economy without private sector and high vigilance entrepreneurs is vital to identify opportunities and use of opportunities around the world. in this regard, identifying the influencing factors on emergence and development of entrepreneurship culture can be effective to promote entrepreneurship in our country. for this purpose, the main issue in this study is to identify t...

A technique was required for batch culturing and direct sensitivity testing of urine specimens to reduce increasing demands on laboratory services. A comparison was made between the filter paper strip method and multipoint inoculator technique using a Denley inoculator (Denley Ltd, Billingshurst, Sussex). The results showed that multipoint inoculation was a rapid, economical, and reliable metho...

Gastric biopsy specimens from 109 patients with non-ulcer dyspepsia were retrospectively examined. Sixty one patients had gastritis and there was a strong correlation with the presence of Campylobacter pyloridis. Ninety eight per cent were positive in large numbers for C pyloridis by histological examination or by culture, or both. Of 48 patients with normal histological results, 21 had evidenc...

Su1MMARY: The method of most probable numbers (MI") was employed in order to determine the number of resistant brucella cells at concentrations of streptomycin of 1,lO and 100pg.lml. The examination showed agreement with the centrifugation method (plating of the sediment of at least 1OOml. of culture together with the required concentration of streptomycin) in a range up to 1000 resistant cells...