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Articles by Sh. Fallahi
Total Records ( 5 ) for Sh. Fallahi
  E. Badparva , Sh. Fallahi , M. Birjandi , Y. Pournia and M.H. Kayedi
  The major aim of this study was determinate of prevalence of intestinal parasites in the rural regions of Kouhdasht, Lorestan Province of Iran. Parasites are living creatures which have to be dependent on other living creatures including plants and animals as their hosts to survive. Those parasites which choose human beings as their hosts are divided into two groups of protozoan and multi-cellular parasites in terms of their appearance. Additionally, they are able to live in various tissues of human beings in terms of the parasite type. However, those which live in the digestive system are called intestinal parasites and have infected a large number of people all over the world. Four hundred and sixty two stool samples were collected from the rural families serviced by the health centers of Kouhdasht using multi-step clustered methods and were examined using direct methods including physiologic serum and Lugol, as well as formalin-ether concentrated method to diagnose all intestinal parasites. In addition, all the stool samples were examined using agar culture method and Harada-Mori to diagnose Strongyloides stercoralis. Out of the 462 stool samples collected by concentrated method, 150 ones (32.5%) were infected with intestinal parasites while no positive cases were reported for Strongyloides stercoralis larva despite administering various diagnostic methods. The results showed that 32.5%, or one-third, of the studied population were found to be infected with intestinal parasites while the tests were administered only once. Definitely, if the tests and sample collecting methods had been repeated three times, the prevalence rate would have been more than this relatively high one. Therefore, providing actions and facilities on the part of responsible officials and organizations are required to enhance health facilities and to eradicate these troublesome creatures. In addition, in this study significant relationships were found between the prevalence rate of the parasites and the population density as well as regular soap using.
  Sh. Fallahi , E. Badparva , M. Mohammadi , F. Ebrahimzadeh and Y. Pournia
  Infection by Toxoplasma gondii is widely prevalent in humans and other warm-blooded animals. Symptomatic disease is usually uncommon and most of the infections are asymptomatic. The important aspect of this parasitic infection is the probable danger of congenital transmission and its severing effects on the fetus. This cross-sectional study was conducted to determine the seroprevalence of Toxoplasma gondii IgG antibodies among women referred to Khorramabad central laboratory of health center for pre-marriage medical examinations in 2008. A total of 465 serum samples were examined for detection of specific Toxoplasma gondii IgG antibodies by Enzyme-linked immunosorbent assay (ELISA). Various information about participants was collected via., questionnaires. The SPSS 15.0 software was utilized to analyze the data from experiments. In order to check for statistical differences, Chi-square test and Fisher’s exact test were used. The results indicated that 97.2% (452 out of 465) of the women's sera had anti-Toxoplasma gondii IgG antibodies. However, no statistically significant differences were observed between age group, level of education, rural or urban residence and job in the seroprevalence of Toxoplasma gondii IgG antibodies. Regarding the results of this study, Khorramabad city has relatively hyperseropositivity for Toxoplasma gondii antibodies in women who intend to get married. However, a low number of these women were seronegative for Toxoplasmosis and susceptible to infection with Toxoplasma gondii and after it to congenital Toxoplasmosis in their pregnancy. Women infected with Toxoplasma gondii in pregnancy period have an abortion or baby's burn with mental retardation, hydrocephaly and macrocephaly, joundice and blindness symptoms; therefore, health education especially in women who are going to marry and also during pregnancy is necessary.
  A. Sepahvand , J. Abdi , Y. Shirkhani , Sh. Fallahi , M. Tarrahi and S. Soleimannejad
  This study was carried out with the purpose of determining the genus and species of regional dermatophytes and its importance in providing the ways for preventing these diseases. The study was established as census during a one year period (from 2007 through 2008). Questionnaires were completed for recording necessary information by 294 patients suspected of dermatophytosis and then samples from skin, nail and hair were obtained. All of the specimens were assessed by two methods, direct and culture. The obtained results were analyzed by SPSS 15 software. One hundred and seventy two patients showed different kinds of dermatophytosis. The age average was 23.5 years and the number of affected men was more than that of women. Only Tinea manuum in women was more than in men. Most kinds of dermatophytosis were Tinea corporis (25.6%) and Tinea cruris (25%). Epidermophyton flocosum and trichophyton verrocosum were the most common dermatophytes of the region. Control and prevention of these diseases and also preclusion of the economic losses in regional husbandry industry will be fulfilled. Moreover, definitive diagnosis of dermatophytosis before initiating the therapy and public education concerning this disease can be very effective in reducing the infection rates.
  E. Badparva , Y. Pournia and Sh. Fallahi
  Blastocystis is a zoonotic and protozoan parasite whose pathogenesis has been proven in many studies in recent decades. It is transmitted through the fecal-oral route and its prevalence rates differ in different countries and communities. This study was conducted to investigate the prevalence of gastrointestinal parasites, particularly Blastocystis hominis, in Lorestan province of Iran. In this study, 2,838 fecal samples along with completed questionnaires containing epidemiological questions were gradually collected in a year and examined in clinical laboratories throughout the province using the direct method (Lugol-Normal Saline) and concentration method (Formalin-Ether). The results were recorded in the lower part of the questionnaire designed for this purpose both qualitatively and, in case of positive results, quantitatively. The data were analyzed statistically and the samples infected with Blastocystis hominis were kept in a freezer for molecular examinations. Out of the 2838 fecal samples, 139 cases (5%) were infected with Blastocystis hominis, out of which 42 and 58% were the samples from urban and rural residents, respectively. Moreover, 35% of the infected individuals were females and 65% were males, showing a statistically significant difference. In terms of age group, city and occupation, the age group of 70-79, Boroujerd and ranchers had the highest prevalence rates with 8.3, 20 and 8.3%, respectively. The prevalence of Blastocystis hominis infection in the province was 5% and this parasite was the second most prevalent parasite after Giardia lamblia. Its high prevalence in ranching occupation can be attributed to the zoonotic feature of the parasite. However, its high prevalence in older people can be considered as the secrets of the parasite, so more studies are needed. Since the parasite is highly polymorphic, more knowledge and experimentations are needed for its exact diagnosis. Its diagnosis can affect epidemiological results because the parasite may be the cause of unknown diseases.
  E. Badparva , Sh. Fallahi , A. Sepahvand , Y. Pournia and Sh. Mollaei Rashnoo
  The definite and exact diagnosis of protozoa is possible using high magnification objective lenses, provided that suitable stained smears are prepared. Therefore, the appropriateness of both fixative and staining methods to the species of parasite, which is the main objective of this study, is important. In this study, five various fixatives including (Merthiolate iodine formalin) MIF, (Sodium acetate-acetic acid formalin) SAF, (Polyvinyl alcohol) PVA, formalin and schaudinn and four types of stains including Hematoxylin I, Hematoxylin II, Trichrome and Carbol-fuchsin were prepared using standard procedures. After the smears of stool samples containing Giadria lamblia cyst were prepared and kept for 24 h in various fixatives, the study was carried out using the four above-mentioned stains by changing the ingredients and time as well as by repeating the experiments. After fixing and staining all the smears in identical conditions along with the implementing interferences in the staining process, the following results were eventually obtained considering the morphologic indexes and negative and positive scores (from 1 to 20): formalin with 17 scores in hematoxylin I staining, formalin and SAF with 15 and 14 scores, respectively in Hematoxylin II staining, MIF with 13 scores in Trichrome staining and SAF, PVA, MIF with 11.5, 11.5 and 11 scores, respectively in carbol-fuchsin staining were found to be the best fixatives. Hematoxylin I staining using formalin fixative with 17 scores showed the best result while the maximum score for Carbol-fuchsin staining was 11.5 showing a necessity for more expenditure, time and expert cooperation to reach ideal results.
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