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Abstract Most recently, silver nanoparticles due to antibacterial properties have been considered in medical science. So the aim of the study was green synthesis of silver nanoparticles using Berberis vulgaris leaf and root aqueous extract and its antibacterial activity. After collection, identification and extraction of Berberis vulgaris was performed production of silver nanoparticles. In the study effect of parameters such as AgNO 3 concentration (0.5, 1, 3, 10 mM), aqueous extract (3, 5, 10, 15, 30 mL) and contact time (1, 2, 6, 12, 24 h) were investigated in the synthesis of nanoparticles and also the antibacterial effect of these nanoparticles was studied on Escherichia coli and Staphylococcus aureus bacteria by Disk diffusion test and Minimum Inhibitory Concentration test (MIC). According to XRD results and analysis of TEM, nanoparticles have spherical shapes and size of 30 to 70 nm. On the other hand antibacterial tests showed these nanoparticles have more antibacterial activity more than other extracts. Result showed the biosynthesis of silver nanoparticles using aqueous extract of Berberis vulgaris is a clean, inexpensive and safe method that has not been used any toxic substance and consequently does not side effects and this nanoparticles has a high antibacterial activity. Highlights • Green Synthesis of Silver Nanoparticles Using Berberis Vulgaris Leaf and Root Aqueous Extract • Investigation of Antimicrobial Properties using Synthesis of Silver Nanoparticles • Doing Disc Diffusion Test and Minimum Inhibitory Concentration Test • Ultraviolet-visible spectroscopy to identify nanoparticles synthesized • X-ray diffraction spectroscopy to identify nanoparticles synthesized • Dynamic Light Scattering Spectroscopy for identification nanoparticles synthesis • Transmission electron microscopy spectroscopy for identification nanoparticles synthesis [ABSTRACT FROM AUTHOR]

Introdaction:Leishmaniasis is a zoonosis disease, presented in three forms including cutaneous, mucocutaneous, and visceral (kala-azar). The parasite, Leishmania spp, is transferred by the causative agent of the disease, namely the sand-fly. Accurate identification of sand-flies helps to prevent and treat the disease. Materials and Methods:This study was conducted to identify sand-fly species distributed in Birjand, east of Iran. Sand-flies were collected from different parts of Birjand city, Iran through using sticky traps in summer 2015. Captured female specimens were mounted and identified by specific keys. Result:In this study, a total of 1480 samples of sand-flies were collected, out of which 945 sand-flies in areas were related to animal and 535 sand-flies in areas related to human. The most prevalent species, among 654 collected female specimens were Phlebotomus sergenti (22.17%) and Sergentomyia dentata (49.54%). Conclusion:According to the current results, the dominant species among disease vectors of cutaneous leishmaniasis is the urban type. Because of the presence of Leishmania tropica, the city's health system must take necessary care to control cutaneous leishmaniasis. [ABSTRACT FROM AUTHOR]

Background: Chlamydia trachomatis (CT), the most common bacterial sexually transmitted infection (STI), leads to pelvic inflammatory disease, infertility and chronic pelvic pain in women as well as an increased risk of vertical transmission, conjunctivitis and pneumonitis in infants. It may also be a co-factor along with human papillomavirus (HPV) in cervical cancer progression. We aimed to determine the prevalence of CT genotypes in genital specimens of women from South Khorasan, Iran and to test the association between CT and cytology statistics. Materials and Methods: This was a cross-sectional study on 248 Pap smear samples from women who visited a gynecologist for routine Pap smear testing in South Khorasan province. Nested polymerase chain reaction (PCR) was used to test the residual fluids of Pap smears for CT-DNA after cytological examination. Direct sequencing, alignment and phylogenic analyses were performed on eight samples to identify their genotypes. Results: The mean age of patients was 37.54 ± 5.21 years. Most samples had a normal cytology (214 cases, 86.29%). Overall, 31 samples were positive for CT infection (12.5%) of which 20 (9.34%) were normal and 11 (32.35%) were abnormal, with the frequency difference being significant (P=0.022). The co-infection of CT/HPV in total was identified in 14 cases (5.6%). The results of sequencing eight samples out of the 31 CT positive samples revealed the detection of genotypes D and E, each with four cases. Conclusion: We show that a high prevalence of genital CT infection is present in women with both normal and abnormal cytology; however, the higher prevalence among women in the abnormal group may indicate its involvement in cervical neoplasia. [ABSTRACT FROM AUTHOR]

Background: Malaria is an infectious disease by fever and chills, anemia and splenomegaly genus Plasmodium parasite is the agent it. One of the easiest and least expensive methods to prevent this disease is removing the vector that usually by been done insecticides and chemical pesticides, but nowadays due to the damaging effects of by toxic chemicals is currently trying to organic toxic and plant compounds used to combat the pests. So in this study used from the Hyoscyamus niger L. and Nerium oleander L. to destroy the larvae of this vectors and positive results were compared these two plants together. Methods: In this experimental study, H. niger and N. oleander collected and dried to extraction by methanol usingthe Rotary Evaporator. Mosquito larvae collected from stagnant water pitsandponds around the Birjand, Iranandorder to apply the relevant identity tests and isolation of Anopheles spp mosquito larvae. Survival measurement were used to estimate LC50 values using Probit analysis in Excel 2010 and SPSS (ver 20) software. Results: Both Hyoscyamus niger and Nerium oleander had positive effects on destroying the Anopheles spp larvae and between obtained results, the most effective extract for destroying the mosquitoes Anopheles spp larvae, was the flower extract of henbane (LC50 = 0/26 ppm) and the weakest one, was the leaves extract of oleander (LC50 = 4/85 ppm). Conclusions: According to the results, the flower extract of henbane is recommended as a toxic, organic and natural compounds to fight Anopheles spp mosquito larvae, which it is stronger and more effective compared to the other parts of these two plants. [ABSTRACT FROM AUTHOR]

Background: Cutaneous leishmaniasis (CL) is one of the most important neglected tropical diseases and a major public health challenge in Iran caused by Leishmania spp and transmitted by phlebotomine sand flies. The number of CL cases has shown an increasing pattern all over the country, including the district of Varamin, southeast of Tehran, Iran. This study aimed to identify the Leishmania spp isolated from CL patients using molecular methods in Varamin during 2012-2013. Methods: Exudate materials collected from the swollen edge of the skin lesions of 44 parasitological positive CL patients by disposable lancet. They were referred to Varamin Health Center by physician. The samples were subjected to molecular method for Leishmania species identification. Results: The digestion pattern of restriction enzyme revealed that 37 (84.1%) CL patients were infected with L. major and 7 (15.9%) were infected with L. tropica. They were mostly male than female. More than half of the patients (58%) had multiple lesions, and they were mostly observed on extremities, 34.1% on legs and 29.5% on hands. Le- sions were mostly of wet ulcerative type. Conclusion: Dominancy of L. major provides more evidence that Varamin District probably could be considered as Zoonotic Cutaneous Leishmaniasis (ZCL) areas. More investigation on other epidemiological aspects of disease is needed. [ABSTRACT FROM AUTHOR]

Background: In Iran, both forms of cutaneous (CL) and visceral leishmaniasis (VL) have been reported; so the accurate species identification of the parasite(s) and the analysis of genetic diversity are necessary. Methods: The smears were collected from lesions samples of 654 patients with CL, who attended local health centers in 12 provinces of Iran during 2013-2015. The smears were checked for the presence of amastigotes by light microscopy. DNA of 648 Leishmania isolates, amplified by targeting a partial sequence of ITS (18S rRNA-ITS1-5.8S rRNA-ITS2) gene. Twenty-five of all the amplicons were sequenced and analyzed with restriction fragment length polymorphism (RFLP) using the Taq1 enzyme. Results: All the smears were positive microscopically. The PCR-RFLP analysis revealed that 176 (27%) CL patients were infected with L. tropica and, 478 (73%) with L. major. The dominant species in all over Iran is L. major. The sequencing results of all CL patients and RFLP analysis confirmed each other. Based on our phylogenetic tree, 25 ITS DNA sequences were grouped into two clusters representing L. major and L. tropica species. Phylogenetic tree derived from the ITS sequences supports a clear divergence between L. major from the other species. Conclusion: Discrimination of Iranian Leishmania isolates using ITS gene gives us this opportunity to detect, identify, and construct the phylogenetic relationship of Iranian isolates. [ABSTRACT FROM AUTHOR]

Introduction: Culex spp, a prevalent mosquito in many tropical countries, causes filarial fever among human beings. The easiest way to prevent this disease is to eliminate the vector. The present study aimed to compare the effect of the extract of aerial parts of Hyoscyamus niger and Nerium oleander on larva killing. Materials and methods: Aerial parts of the plant were collected and dried. Methanol was used for extraction and the solvent was removed with a rotary evaporator. Mosquito larvae were collected and identified from stagnant water pits and ponds around Birjand, Iran. The larvae were then placed on a plate containing a certain concentration of the extract of oleander or henbane separately, and their mortality rates were recorded and analyzed. Results: H. niger and N. oleander alcoholic extract of aerial parts both had a positive effect on eliminating larvae of the Culex spp., but the flower extract of henbane was the most powerful extract after 72 hours (LC50= 0.46 ppm) and the stem extract of henbane was the weakest one (LC50= 37.57 ppm). Conclusion: Due to the strong larvicidal effect of the henbane extract in 72 hours compared to other extracts, it is suggested that it be used as an organic pesticide to eliminate Culex spp larvae. [ABSTRACT FROM AUTHOR]