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Masoud Soosaraei, Ahmad Daryani, Shahabeddin Sarvi, Mohamad Taghi Rahimi, Mahdi Fakhar, Hajar Ziaei Hezarjaribi, Mehdi Sharif,
Volume 14, Issue 5 (Sep-Oct 2020)

Background and objectives: Intestinal parasitic infections are a major public health problem worldwide, especially in developing countries. It is estimated that around 3.5 billion people are infected with intestinal parasites. Human intestinal parasites (HIP) are clinically important due to broad epidemiological distribution, reinfection and drug resistance. In the last decades, bioactive compounds from herbs were used against a wide variety of microorganisms including parasites. We aimed to perform a systematic review on studies on the effects of medicinal herbs on HIPs in Iran.
      Methods: Relevant scientific publications until April, 2015 were extracted from five English databases (PubMed, Google Scholar, Ebsco, Science Direct and Scopus) and four Persian databases (Magiran, Irandoc, IranMedex and the Scientific Information Database).
      Results: A total of 18 papers and two dissertations met the inclusion criteria. Overall, 22 different plant extracts were used against Giardia lamblia, Entamoeba histolytica, Cryptosporidium and Hymenolepis nana. Based on the results, the extracts could exert time- and dose-dependent inhibitory effects against the tested HIPs. Five plants types including Allium, Chenopodium botrys, Carum copticum, F. asafoetida and Artemisia annua were able to completely inhibit the tested parasites, while Thymus vulgaris and A. paradoxum showed the lowest inhibitory effect (7%).
      Conclusions: Given the findings, it is recommended to conduct in vivo studies on medicinal herbs with favorable in vitro effects against HIPs.

Masoud Soosaraei, Ahmad Daryani, Mehdi Sharif, Shabeddin Sarvi, Hajar Ziaei Hezarjaribi, Mahdi Fakhar,
Volume 15, Issue 1 (Jan-Feb 2021)

Background and objectives: Cryptosporidium spp. is a major cause of gastrointestinal illness in humans. There are no data available on geospatial distribution of Cryptosporidium spp. in the Mazandaran Province, Iran. Therefore, the aim of this study was to determine the spatial patterns and demographic factors associated with Cryptosporidium spp. infection in the Mazandaran Province, North of Iran.
Methods: Fecal specimens were collected from diarrheic individuals (n=215) who were referred to health centers in the Mazandaran Province during 2014-2015. The specimens were examined for presence of Cryptosporidium spp. oocysts by Ziehl-Neelsen acid-fast staining.
Results:  Cities of Sari, Neka, Noshahr and Behshahr were identified as disease hotspots. The prevalence of Cryptosporidium infection was significantly higher in subjects under 10 years of age as well as those living in low-altitude areas and rural areas without access to standard water sources.
Conclusion: Our findings and the GIS-derived data could be used to facilitate cryptosporidiosis surveillance and monitoring of Cryptosporidium spp. distribution in the study area.

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