Publications by authors named "Saeid Nasibi"

Cystic echinococcosis is a severe zoonotic disease caused by different species and genotypes belonging to the Echinococcus granulosus sensu lato (s.l.) complex.

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Patients with cystic echinococcosis (CE) regularly undergo surgery in medical centers in endemic countries. Our understanding of the challenges patients face on the pathway toward the final diagnosis and treatment of CE is poor. The present study was conducted to evaluate the medical care-seeking pathway and the underlying causes of the delayed surgical treatment of CE.

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Article Synopsis
  • The study evaluated the expression of specific genes in different regions (protoscoleces, germinal layer, neck, and sucker) of adult parasites, aiming to understand their role in development.
  • Conducted at Kerman University in 2018, researchers cultured protoscoleces to obtain strobilated worms, isolated various regions for analysis, and used RT-qPCR and immunohistochemistry for gene expression profiling.
  • Results indicated that certain gene expressions varied significantly across different regions, suggesting their potential role in the differentiation of the parasite throughout its life cycle.
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  • Human toxocariasis (HT) is a significant zoonotic infection, especially in tropical regions, and understanding it better is essential for addressing its socioeconomic impact and control measures.
  • A comprehensive review of available research and documents in Iran revealed critical gaps in knowledge, particularly regarding worm burdens, reinfection rates in definitive hosts, and detection methods for the parasite.
  • Effective prevention and control strategies should focus on assessing environmental egg density, identifying at-risk populations, improving early diagnosis techniques, and enhancing public health education about the infection.
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Cystic Echinococcosis (CE) as a prevalent tapeworm infection of human and herbivorous animals worldwide, is caused by accidental ingestion of Echinococcus granulosus eggs excreted from infected dogs. CE is endemic in the Middle East and North Africa, and is considered as an important parasitic zoonosis in Iran. It is transmitted between dogs as the primary definitive host and different livestock species as the intermediate hosts.

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Background: Cystic echinococcosis (CE) or hydatid disease is a global public health concern which imposes considerable economic costs on the communities in endemic regions. CE surveillance data are not adequately reliable. The present study reports the development and outcomes of a CE registry in Iran.

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  • Fascioliasis is a worldwide disease caused by liver flukes, affecting livestock and humans, particularly prevalent in northern Iran, with limited studies on local species.
  • The study aimed to identify different Fasciola species, including hybrids, in livestock from Golestan province using morphometric measurements and molecular techniques.
  • Results showed 110 infected isolates, identifying 81 as F. hepatica and 29 as F. gigantica through one method, while 72, 26, and 12 were classified as F. hepatica, F. gigantica, and hybrids, respectively, marking the first molecular evidence of hybrid forms in ruminants.
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Background: Fascioliasis, caused by Fasciola hepatica, is a neglected zoonotic food-borne trematodiasis. The Caspian littoral in northern Iran is endemic for the disease, and human fascioliasis is well-known in that region. In the present study, we report the diagnosis, identification, and clinical management of a human case of fascioliasis associated with common bile duct (CBD) obstruction from a non-endemic remote area in southeastern Iran.

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The is one of the most important causative agents of nasal myiasis in camels. This study aimed to explore the prevalence, histopathological effects, and molecular identification of infestation in camels of Kerman province, South-Eastern Iran, between 2019 and 2021. The larvae were placed in 10% formalin for histopathological evaluation and species identification.

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  • Echinococcus granulosus has a complex life cycle that relies on specific transcription factors (TFs) and miRNAs to regulate gene expression during its development.
  • The study identified 394 unique TFs and 818 differentially expressed genes, leading to a network involving 8 specific miRNAs and 8 TFs that influence the parasite’s metabolic processes.
  • By validating TF expression through quantitative polymerase chain reaction, the research highlights potential targets for interrupting the parasite's development and controlling dog infections.
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Understanding dynamics of free-roaming dog (FRD) population is critical for planning and implementation of dog population management programs. FRD population size estimation as well as dynamic modeling of dog population under different female dog neutering interventions were investigated in order to determine the most appropriate animal birth control approach. We performed population size estimate of dogs using sight-resight surveys by photography in a randomly selected 25 blocks of the city and all the suburbs of greater Kerman area.

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Background: Snails of the genus are the intermediate hosts of species the etiological agents of liver fluke disease, fascioliasis. A genetically different but morphologically very similar species in the genus, is sympatrically distributed with in some regions of the world. We aimed to investigate the occurrence of in Kerman province, Iran and to characterize genetically specimens from southeast Iran.

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Designing and implementing Cystic Echinococcosis control programs require quantitative information about the worm load and the intensity of infection in dog populations in endemic areas. So far no "probe-based" molecular quantification tool has been available for . This study was conducted in order to develop and evaluate a qPCR technique for measuring worm load of in the final host.

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Cystic echinococcosis (CE) is one of the most widespread zoonotic diseases, with considerable public health and economic importance. Camels play a significant role in transmission cycle of especially, in the Middle East and North Africa (MENA). The present study aimed to identify the genetic variation and haplotype distribution of camel isolates of sensu lato using all existing mitochondrial DNA data from camels in different parts of the world.

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Background: Human echinococcosis is a neglected zoonotic disease distributed worldwide. It comprises cystic and alveolar forms, the former being the more prevalent disease. Imaging techniques are the first choice for diagnosis of cystic echinococcosis and serology is used as an additional diagnostic technique in doubtful cases or as the sole test in low-resource settings.

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is a zoonotic cestode dwelling in the small intestine of canid definitive hosts. Intermediate hosts are a wide range of domestic and wild ungulates. Human infection with the larval stage causes cystic echinococcosis.

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Background: Dirofilariasis is a zoonotic parasitic infection transmitted from animals to humans by culicid mosquitoes. Although the disease can be caused by Dirofilaria spp. including Dirofilaria immitis and Dirofilaria repens, human ocular dirofilariasis due to D.

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The Caspian Sea has been a highly dynamic environment throughout the Quaternary and witnessed major oscillations in lake level, which were associated with changes in salinity and habitat availability. Such environmental pressures are considered to drive strong phylogeographic structures in species by forcing populations into suitable refugia. However, little is actually known on the effect of lake-level fluctuations in the Caspian Sea on its aquatic biota.

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Our knowledge on the susceptibility of humans to different genotypes of the zoonotic tapeworm and the genetic make-up of the cysts in multi-organ involvements is limited. This study aimed to identify the genotype profile of in patients undergoing hydatid surgery in an endemic area for cystic echinococcosis (CE) in southeastern Iran. Individuals who underwent hydatid cyst surgery were included in this study.

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Hydatid disease, a zoonotic disease, is still endemic in many developing countries that is caused by the metacestode of Echinococcus (E.) granulosus. Surgical management is one of the best choices for the treatment of the hydatidosis and using effective scolicidal agents during hydatid surgery is essential to prevent the secondary infection.

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Little is known about the genetic and morphological characters of Taenia ovis. The purpose of the present study was to characterize sheep isolates of T. ovis using rostellar hook morphometry as well as mitochondrial genes sequence analysis.

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Synanthropic fly species can be potential mechanical vectors of many infectious agents. The potential of the flies to carry Echinococcus granulosus eggs is not fully documented. The purpose of the present study was to determine the possible role of non-biting flies to carry taeniid eggs.

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The precise identification of the parasite species causing leishmaniasis is essential for selecting proper treatment modality. The present study aims to compare the nucleotide variations of the ITS1, 7SL RNA, and Hsp70 sequences between non-healed and healed anthroponotic cutaneous leishmaniasis (ACL) patients in major foci in Iran. A case-control study was carried out from September 2015 to October 2016 in the cities of Kerman and Bam, in the southeast of Iran.

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Objective: The purpose of the present study was morphometric and molecular characterization of Fasciola isolates from ruminants in Iran.

Methods: Flukes were collected from the livers of 54 naturally infected sheep and cattle. The proportion of body length to width (L/W) of each fresh fluke was measured using a digital caliper.

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