Gayane Martirosian

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The sdr locus was found in all 497 investigated Staphylococcus aureus strains, although in 29 strains it contained only the sdrC gene (sdrD negative, sdrE negative). The sdrC-positive, sdrD-negative, sdrE-negative gene profile was exclusive to methicillin-sensitive S. aureus (MSSA) strains (Fisher's exact test; P = 0.0005) and was not found in the strains(More)
Enterococci are a common cause of serious infections, especially in newborns, severely immunocompromised patients, and patients requiring intensive care. To characterize enterococcal surface antigens that are targets of opsonic antibodies, rabbits were immunized with various gentamicin-killed Enterococcus faecalis strains, and immune sera were tested in an(More)
OBJECTIVE The aim of the study was to analyze interrelation between AMH levels and body weight, metabolic, and hormonal status in normal and overweight weight women with and without polycystic ovary syndrome (PCOS). STUDY DESIGN Eighty-seven women (54 normal weight and 33 overweight) diagnosed with PCOS and 50 apparently healthy women - Non-PCOS (28(More)
The aim of this study was to evaluate the occurrence of genital mycoplasmas, especially Ureaplasma parvum and Ureaplasma urealyticum, in women with atypical squamous cells of undetermined significance (ASCUS), low grade squamous intraepithelial lesions (LSIL) and high grade squamous intraepithelial lesions (HSIL), compared to women with normal cytology(More)
The association between gut microbiota and circulating zonulin level, a marker of intestinal permeability, has not been studied yet. The aim of the study is the assessment of plasma zonulin, haptoglobin and proinflammatory cytokines (TNF- α and IL-6) levels in relation to composition of gut microbiota in obese and normal weight subjects. Circulating(More)
Autistic behavior is often accompanied by numerous disturbing symptoms on the part of gastrointestinal system, such as abdominal pain, constipation or diarrhea. These problems are often connected with deregulation of physiological microflora in intestine. The aim of this study was to determine differences in intestinal microflora of autistic and healthy(More)
We will test the hypothesis that ultrasound supported by polymerase chain reaction (PCR) could improve bacterial identification in non-infected prosthetic joint loosening. The aim was to detect bacterial species in non-infected prosthetic joint loosening using ultrasound and 16S rRNA gene sequencing. A total of 16 patients (11 women and five men) aged 46–80(More)
In this study, for the first time, Clostridium histolyticum lethal factor was purified by ammonium sulfate precipitation of culture broth, centrifugation through an Amicon filter device and hydrophobic interaction chromatography. The purified lethal factor was devoid of proteolytic activity. At a concentration of 150 ng mL(-1) the lethal factor killed 50%(More)
Development of female genito-urinary infections depends on many factors, such as immune system activity, virulence of microorganism and production of factors inhibiting the growth of microorganisms. Taking into account the possibility of relapses or severe complications, it is very important to appropriately diagnose and treat infections. Because of(More)