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Showing 6 results for Mohebali

Shahnam Arshi , Homayoun Sadeghi , Mahdi Mohebali , Seyedhashem Sezavar, Arman Javanrozegar , Darioush Emdadi , Vahid Sepehram , Nayereh Aminisani ,
Volume 2, Issue 3 (Autumn 2002)

 Backgrond & Objective: In recent years, malaria has been a serious problem in Parsabad (a north-western town in Iran). A lot of health-care funding has been allocated to malaria campaign program in this area. The objective of this study was to investigate clinical epidemiology of malaria during 1999-2000.

 Methods: The data collected through epidemiology forms filled for 509 malaria positive cases during 1999- 2000 was analyzed by EPI2000 software. Frequency tables, X2 test and one way ANOVA were used in this analysis.

 Results: All 509 Malaria cases diagnosed were P vivax. They belonged to the first seven-month of the year. 69.4% of malaria cases were related to the year 2000 and the others were related to 1999. The most frequent symptoms were chills in 488 cases (95.9%) and fever in 481 of them (94.5%). Sweating was found only in 3.9% of the reported cases. Mean age and standard deviation of patients was 22.9 + 15.6. There was no significant difference between men and women in terms of the distribution of fever and chills.

 Conclusions: The high prevalence of fever and chills was compatible with the findings of previous studies. If one of the two symptoms is positive in the residents of this area or those people traveling there, malaria should be suspected.

Mahmood Mahami, Mahdi Mohebali, Hosein Keshavarz, Zabihollah Zareei,
Volume 8, Issue 1 (Spring 2008)

Background & Objective: Visceral leishmaniasis (kala-azar) is an infectious-parasitic disease occurring sporadically in various parts of Iran. The disease is endemic in Ardabil, East Azarbaijan, Bushehr and Fars provinces. This study was performed with the aim of evaluation and comparison of direct agglutination test (DAT), indirect immunofluorescent antibody (IFAT) and ELISA in sero-diagnosis of visceral leishmaniasis that is following a seroepidemiological survey in Germi district of Ardabil province.
Methods: Cluster sampling has been performed from ≤12 years old and 10% of the adult population in Germi district. Altogether 1155 blood specimens were collected to detect anti- Leishmania antibodies. The samples were tested by direct agglutination test (DAT), indirect immunofluorescent antibody (IFAT) and ELISA methods.
Results: 32 (2.8%) of the collected specimens have anti-Leishmania antibodies with titers ≥1:800 and from total specimens 7 (0.6%) were positive with ≥1:3200 titers. In IFA test 32 (2.8%) have titers ≥1:40 and from total specimens 6 (0.52%) were positive with ≥1:320 titers. In ELISA test 8 specimens were positive and other specimens were negative.
Conclusions: According to the results of this study, IFAT and ELISA are specific and high sensitive tests for sero-diagnosis of visceral leishmaniasis but these methods are expensive and require the complicated tools. Whereas, DAT is a simple method, not expensive and require a simple local laboratory with one or two trained technicians. Therefore DAT could be used for seroepidemiological studies and sero-diagnosis of visceral leishmaniasis in endemic areas instead of IFA and ELISA methods.
Hadi Sadeghi , Eslam Moradiasl , Mahdi Mohebali, Sadegh Hazrati , Fathollah Ainolahzadeh, Zabihollah Zareiy,
Volume 12, Issue 2 (summer 2012)

  Background & Objectives: In endemic area, chemically fighting with carrier of kala azar disease is one of the main ways for reducing disease, and ficam is one of the toxins that is appropriate to eliminate mosquitoes and is from health poison among the pesticides. Therefore, by considering the lasting in nature, using ficam can greatly destroy disease-carrying mosquitoes.

  Methods: In this cross - sectional study the rate of effect ficam on different vectors species were examined in Meshkinshahr city. First two infected villages, as cases and controls, and 10 households from each village selected and 1000 m2 from the case village was spraying with ficam than 0.3 g /m2. Then, using sticky traps set in the distances were attempted to identify species and Fon (per 2 villages).

  Results: In the rate of 524 sand fly predating in this study included 70.5% Phlebotomus Kandelakii, 5% F. Papatasi, 7.5% F. Major, 7.5% F. Balcanicus, 9.5% F. longidoctus. In the case village was spraying and , respectively, 3-15 - 30 - 45-60 -75 and 90 days after spraying at about 79.5% - 69.5% - 83% - 90% - 93% - 100% and 100 % sand fly vanished.

  Conclusion: According to this study can be said that ficam poison with the survival of three months in nature and with average of lethality coverage of appropriate terms of season to prevent from disease Kla-azar and eliminate sand flies and as a poison, appropriate of health before starts up the season of carriers activity. And ficam poison can be used in the whole of region and country.

Eslam Moradi Asl, Mahdi Mohebali , Behnam Mohammadi-Ghalehbin , Akbar Ganji , Soheila Molaei , Roshanak Mehrivar , Zabiholah Zareei ,
Volume 14, Issue 1 (spring 2014)

  Background & Objectives : Visceral leishmaniasis is an important endemic disease in Iran and Meshkin shahr County is the most important foci of visceral leishmaniasis in Iran. The aim of this study is the survey of recent changes in epidemiological patterns of visceral leishmaniasis in Meshkin Shar area during 12 years.

  Methods : This is a descriptive retrospective study. Records of 193 cases with confirmed kala-azar disease were reviewed in the period of 2001-2012. Data collected from files and were analyzed using descriptive statistics and SPSS v.15.

  Results : From 193 patients with confirmed kala-azar disease, 85% were resident in rural and 15% in urban areas. Among of these patients, 43% were female and 57% male. About 66% of patients were under 2 years old, 23% in age group between 2-5 years and 11% above five years. Among four parts of Meshkin Shahr County, in the first five years of the study, the most cases of the disease were from the central part, but in second six years the most cases were from the west part of this county and in latest year (2012) it has been coverted .

  Conclusions : Incidence of kala-azar was decreased during last 12 years. Because of high infection rate in dogs and considering important role of these reservoirs in conserving and distribution of disease, stopped health activities in any parts of area can increase the incidence of disease.

Soheila Molaei, Abdolhosein Dalimi, Mehdi Mohebali, Zabihollah Zareii, Behnam Mohamadi, Behnaz Akhondi, Amrollah Azarm,
Volume 16, Issue 1 (spring 2016)

Background & objectives: Visceral leishmaniasis is a zoonotic disease and is considered as the most important disease in dogs. The disease has been reported in North West and South of the country, in Iran. In addition to stray dogs, some apparently healthy dogs can be contaminated without showing any sign or symptoms in this area. In the present study, canine visceral leishmaniasis was investigated in dogs lacking clinical signs in Meshkinshahr city in Ardabil, Iran.

Methods: This study was a cross-sectional survey conducted during 2011-2014. A total of 110 serum samples collected from dogs either having or lacking clinical signs and tested by direct agglutination test (DAT) assay. Then 10 dogs (41.6%) showing clinical signs and 15 dogs (17.4%) without any symptoms were autopsied and their spleens were sampled. The samples were used for smear preparation and culturing.

Results: Based on the results, among 24 dogs with clinical signs 20 cases (83.3%) and of 86 dogs without signs, 16 cases (18.6%) found to be positive. On the other hand, smear and culture results were found to be positive in 100% and 60% of dogs with and without clinical signs, respectively. The interesting and impressive results of this study was that the dogs with symptoms but negative DAT and asymptomatic dogs with negative DAT were positive in parasitological tests.

Conclusion: This proves that asymptomatic dogs like symptomatic dogs can be effective in L. infantum infection and is able to maintain the transmission of the disease in endemic areas. On the other hand, a number of symptomatic dogs with negative anti-leishmania antibodies were positive in parasitological tests. Thus, this study also shows that although DAT is effective in determining asymptomatic dogs and canine visceral leishmaniosis control programs but it does not seem to be satisfying in endemic areas such as Meshkin-shahr. Thus in endemic areas, it is recommended that the low antibody titer should be considered.

Mahmoud Mahami-Oskouei , Mehdi Mohebali, Adel Spotin, Zahra Alizadeh,
Volume 18, Issue 3 (autumn 2018)

Leishmania parasites as the causative agent of leishmaniasis belong to Trypanosomatidae family. Parasite, vector, vertebrate host and environment are major factors in pathogenesis of Leishmania
Parasite dependent factors are virulence factors which exist in Leishmania species such as LPG, GP63. In recent years, the importance of these factors in the field of vaccine and drug has been considered by researchers. Sand fly biting behavior and salivary gland proteins are vector dependent factors which are effective in the Leishmania pathogenesis. Age, gender, nutrition, immune system, infectious diseases, genetic, occupation, socio-economic characteristics, and habitat are vertebrate host mediated factors. Temperature, rainfall, wind and its speed, soil, and continuous changes in climate are also environmental factors. Therefore the aim of this study was to evaluate the pathogenesis of Leishmania parasites.

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مجله دانشگاه علوم پزشکی اردبیل Journal of Ardabil University of Medical Sciences
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