amniotic epithelial cells (aecs) possess unique characteristics, which make them a suitable source for cell-based therapeutic strategies. aecs have stem cell properties with low-immunogenicity (due to expressing hla-g molecule and absence of mhc class i and ii antigens) and no ethical problems, as well as availability in sufficient numbers, which can be obtained from a placenta. we have recentl...

The adherence of Candida albicans to any cell is considered essential in the process that leads to colonization. Our objective in this study was to evaluate the effect of different carbohydrates and the presence of lactobacilli and Escherichia coli on the in vitro adherence of Candida albicans. The adherence to buccal epithelial cells was higher when growing at concentrations of galactose of 50...

BACKGROUND This study is conducted mainly to evaluate the changes in quality and quantity of oral epithelial cells during the course of IMRT. MATERIAL AND METHODS 30 Patients undergoing chemo-radiotherapy were followed through course of treatment. They were compared with a group of age- and sex-matched healthy individuals. The procedure involved WHO clinical scoring, collection of oral washin...

The extent of oxidative DNA damage is considered a biomarker of carcinogenic process and could be investigated in population studies using easily obtained cells. The oxidized DNA base adduct 8-hydroxy-2-deoxyguanosine (8-OHdG) released by enzymatic hydrolysis of DNA is commonly assayed by high performance liquid chromatography with electrochemical detection. It is expressed as a ratio of 8-OHdG...

BACKGROUND According to the Report on Carcinogens, formaldehyde ranks 25th in the overall U.S. chemical production, with more than 5 million tons produced each year. Given its economic importance and widespread use, many people are exposed to formaldehyde environmentally and/or occupationally. Presently, the International Agency for Research on Cancer classifies formaldehyde as carcinogenic to ...

Background: The health risks of crack cocaine smoking on the oral mucosa has not been widely researched and documented. Objective: The purpose of this study was to analyze the proliferative activity of oral epithelial cells exposed to crack cocaine smoke using silver nucleolar organizer region (AgNOR) staining. Methods: Oral smears were collected from clinically normal-appearing buccal mucosa b...

Total protein and deoxyribonucleic acid (dna) were measured in small-intestinal washings from rats with normal and high rates of dna (or cell) loss. There was a significant relationship between the loss of these two substances. Preparations of isolated viable epithelial cells contained much less protein in relation to dna than did the intestinal washings. It was calculated that only 8 to 15% of...

We evaluated the feasibility and efficiency of using swabs to collect buccal epithelial cells from small (2to 13-g) birds as a source of DNA for genetic studies. We used commercially available buccal swab kits to collect samples from 42 adult and 39 nestling (4to 8-day-old) black-capped chickadees (Poecile atricapillus) and from 6 4-day-old nestling boreal chickadees (P. hudsonica). We compared...