622 research outputs found

    Possible role of TORCH agents in congenital malformations in Gorgan, northern Islamic Republic of Iran

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    This descriptive, cross-sectional study was carried out to explore the frequency of contamination with TORCH agents in neonates with congenital malformations in a referral centre in Gorgan city, Islamic Republic of Iran. Blood samples were taken from 64 neonates and their mothers over a 20-month period in 2003-04. Serologic tests showed that 4/64 infants born with congenital malformations (6%) had positive IgM antibody titres for Toxoplasma gondii (2 cases), rubella virus (1 case) and cytomegalovirus (1 case). IgM was positive in 9/63 mothers (14%), also for T. gondii (3 cases), rubella virus (3 cases) and cytomegalovirus (3 cases). No cases of herpes simplex virus type II or Treponema pallidum were found

    Seroprevalence of anti-Hp and anti-cagA antibodies among healthy persons in Golestan province, northeast of Iran (2010)

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    Background: The major cause of peptic ulcer disease is helicobacter pylori (Hp), and it is also implicated in the pathogenesis of adenocarcinoma of the distal stomach and gastric lymphoma. The incidence of peptic ulcer disease, atrophic gastritis, and gastric adenocarcinoma are more common in people infected of cagA positive strains of Hp. The aim of this study was to determine the prevalence of the anti-Hp and anti-cagA antibodies among healthy persons in Golestan province-North of Iran. Methods: The blood samples of 1028 healthy people were collected all over Golestan province by cluster sampling. A demographic questionnaire was completed and body mass index (BMI) was calculated for each case. Hp-IgG (Pishtaz teb Co. Iran) and anti- cagA (DIA.PRO Italy) titer were evaluated by Elisa method. Data were collected and analyzed. Results: Six hundred-eighty three individuals (66.4%) were positive for Hp and 395 (57.8%) of them were cagA positive. Hp positive cases were (66.3%) and (66.6%) in male and female, respectively. Prevalence of cagA was 56.3% and 58.9%, respectively. The most seropositivity of Helicobacter Pylori (75.4%) was in 55-64 years old (p<0.001). Prevalence of cagA (63.4%) was more in age between 15-24 years. Conclusion: Prevalence of anti-Hp antibody and strains of cagA seropositive in healthy persons of this province of Iran were relatively high. Preventive protocol for reducing of the infection is recommended

    Effect of ethanolic extract of Adiantum capillus-veneris in comparison with Gentamicine on 3 pathogenic bacteria in vitro

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    Objectives: Adiantum capillus-veneris is one of herbs that has been used in traditional medicine of Iran and has mucolytic and antipyretic effects. Antibiotic resistancy is developing against severe bacteria,due to irrational prescription. Therefore, we assessed Adiantum capillus-veneris effects as a medicinal herb on three common bacteria. Methods: Ethanolic extract of Adiantum capillus-veneris was prepared by a pharmacology company with perculation method and was diluted in distilled water to 1/2,1/4 and 1/8 concentration.blank discs were placed in extracts for one day.Then ,the bacteria were cultured in muller hinton agar plate and the discs were placed on them.We used Gentamicine disc as control.After incubation in 37° for 24 hour, the diameter of no growth hallo around the discs were read. Results: The ethanolic extract of Adiantum capillus-veneris herb has no antimicrobial effects on the bacteria. Conclusion: Results of this study suggested that ethanolic extract of Adiantum capillus-veneris has no antimicrobial effects on this three bacteria mentioned above.Because this herb has been used in traditional medicine, we suggest more studies about it

    Prevalence of Panton-valentine gene in Staphylococcus aureus isolated from clinical samples and healthy carriers in Gorgan city, north of Iran

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    Aim. Staphylococcus aureus (S. aureus) is a nosocomial and community acquired pathogen. S. aureus is a pathogen that causes several types of disease from skin infections to systemic diseases that is because of having several virulence factors such as enzymes, toxins, superantigens and Panton-Valentine leukocidin (pvl). pvl is a bi-component leukotoxin that destroy PMNs and monocytes and causes furunculosis, abscesses and necrotizing soft tissue infections in patients without any risk factors for such infections. The goal of this study was determine the prevalence of pvl gene in S. aureus isolated from patients and healthy carriers in Gorgan city, north of Iran. Methods. One hundred seventy isolates of S. aureus, 95 from patients and 75 healthy carriers, were collected during one year. After identification and purification, DNA extraction was done by phenol-chloroform method. Amplification of pvl gene was done by specific primer and polymerase chain reaction method. Results. Among the 170 isolates of S. aureus, 20 contained pvl gene. The frequency of isolates contained pvl gene in MRSA and MSSA isolates were 21.6, 19.3, which was not statistically significant. The frequency of these genes was not related to age, sex and source of isolation from patients. Conclusion. The frequency of pvl gene in this region were much higher than expected. © Copyright 2016 Edizioni Minerva Medica

    Environmental mycobacteria in areas of high and low tuberculosis prevalence in the Islamic Republic of Iran

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    This research compared the numbers and types of different Mycobacterium species in soil samples taken from 2 areas of Golestan province, Islamic Republic of Iran, 1 with a high prevalence of tuberculosis and 1 with a low prevalence. From 220 samples, 91 grew positive cultures (41.4%) and 161 different strains were diagnosed. The most common species isolated were Mycobacterium fortuitum, M. flavescens and M. chelonae. The frequencies of environmental Mycobacterium in the low-prevalence area were much higher than in the high-prevalence area, perhaps due to different environmental factors

    Serum level of lactate dehydrogenase, homocystein, hemoglobin and platelet in preeclampsia

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    Objectives: Pre-eclampsia affects approximately 5-8% of pregnant women. The aim of this study was to compare the serum level of Lactate dehydrogenase (LDH), Homocystein, Hemoglubin and platelet in pregnant women diagnosed as pre-eclampsia and a normal group in Gorgan city, Northeastern Iran from 2007-2008. Methodology: In this case control study, 50 cases of pre-eclampsia were compared with the control group women hospitalized in Dezyani hospital. Pre-eclampsia criteria were: Blood pressure more than or equal to 140/90 mm hg and Proteinuria greater or equal to 300 mg/ 24 hours urine sample in the third trimester. Hemoglobin, platelet, LDH and hemocystein were measured. Data were analyzed by the mean of SPSS-14 program & Chi-2 or t-student were used. Results: The difference of BMI and family incomes was significant between two groups (P-value0.01). Hemocystein level was more than normal range in five patients with pre-eclampsia (P-value<0.001). Conclusions: In this study, hemocystein level was significantly higher in pre-eclampsia patients but LDH, hemoglobin and platelet level had no significant difference

    Finite temperature properties of quantum Lifshitz transitions between valence bond solid phases: An example of `local' quantum criticality

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    We study the finite temperature properties of quantum magnets close to a continuous quantum phase transition between two distinct valence bond solid phases in two spatial dimension. Previous work has shown that such a second order quantum `Lifshitz' transition is described by a free field theory and is hence tractable, but is nevertheless non-trivial. At T>0T>0, we show that while correlation functions of certain operators exhibit ω/T\omega/T scaling, they do not show analogous scaling in space. In particular, in the scaling limit, all such correlators are purely {\em local} in space, although the same correlators at T=0 decay as a power law. This provides a valuable microscopic example of a certain kind of `local' quantum criticality. The local form of the correlations arise from the large density of soft modes present near the transition that are excited by temperature. We calculate exactly the autocorrelation function for such operators in the scaling limit. Going beyond the scaling limit by including irrelevant operators leads to finite spatial correlations which are also obtained
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