Publications by authors named "Seyed-Ahmad Hashemi"

Introduction: Alzheimer's disease (AD) is one of the most common neurological disorders and, researchers believe that the impairment of oxidant-antioxidant system plays an important role in its progression. The PI3K/NRF2 pathway has particular importance in increasing the expression of antioxidants. Thus present study aimed to investigate the effect of eight weeks of aerobic training (AT) with vitamin C (VC) on the expression pathway of antioxidants in the hippocampus tissue of trimethyltin chloride (TMT) induced Alzheimer's Disease Rats.

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The ultimate goal of development from the perspective of human capital development is to have a long, healthy, and creative life. This study aimed to identify the requirements for the effective human resource development in the health system. This mixed method study was performed on 20 managers of Iran's health sector in the qualitative part to reach data saturation in qualitative research.

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Background: Ticks are considered as the main vectors for the transmission of various pathogens such as relapsing fever and CCHF to humans. This study was investigated the biodiversity indices and medically importance of ticks in North Khorasan Province, Northeast of Iran during 2015-2019.

Methods: Specimens were captured from infested ruminants including cows, sheep, and goats.

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Background: Cystic echinococcosis (CE) is one of the most important helminthic parasitic diseases in Iran. The current study aimed to assess the seroprevalence of CE in North Khorasan Province, Northeast of Iran in 2018.

Methods: The study was carried out in seven cities of North Khorasan Province.

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The diagnosis of hydatid cyst should be considered in children with seizure in endemic regions.

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Hematuria and urinary discomfort may be the first manifestations of COVID-19 infection. Nevertheless, more researches are needed to be done in this field to clarify the exact mechanism by which SARS-CoV-2 affects the urological system.

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Leptospirosis is an important zoonotic bacterial disease caused by spp. Earlier studies from North Khorasan province (Iran) reported the presence of in wild canines and rodents. To date, there is no data on the seroprevalence of leptospirosis among humans in this province.

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In late 2019, an outbreak of respiratory disease named COVID-19 started in the world. To date, thousands of cases of infection are reported worldwide. Most researchers focused on epidemiology and clinical features of COVID-19, and a small part of studies was performed to evaluate the genetic characteristics of this virus.

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Background: Outbreaks of infectious diseases are the major concern after flooding. Flood makes people displacement which would be more complicated with inadequate sanitation. Settling in crowded shelters in absence of clean water and inaccessibility to health care services makes people more vulnerable to get infection.

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Leishmaniases are worldwide zoonotic infectious diseases caused by different types of intracellular protozoan species of the genus Leishmania. Leishmaniasis as an important vector-borne parasitic disease is transmitted between mammalian hosts by female sandflies. There are three main clinical forms of disease with varied severity: visceral leishmaniasis (VL), cutaneous leishmaniasis (CL), and mucocutaneous leishmaniasis (MCL).

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There have been some investigations carried out about necrophagous flies and their biodiversity indices in Iran. In the present study, the species composition of flies, their richness, and biodiversity were investigated in central Iran. In a cross-sectional study, specimens were collected monthly in three different climate areas of Qom Province.

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Leishmaniasis is a worldwide tropical infectious disease caused by different species of intracellular protozoa parasites of the genus Leishmania . Herein, we report a 78-year-old man with unusual diffuse cutaneous leishmaniasis (DCL) who had a history of opium abuse and chronic obstructive pulmonary disease (COPD). He had multiple papular, crusted and severely ulcerated lesions extended to his arm and chest.

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Visceral leishmaniasis, a neglected tropical disease, is the third most common opportunistic disease in immunosuppressed patients, such as those affected by the human immunodeficiency virus (HIV)/acquired immune deficiency syndrome. Although the reports have been characterized as /HIV coinfections, the occurrence of a mixed infection by two species in HIV-positive patients is rare. Here, we present an atypical case of disseminated cutaneous leishmaniasis (DCL) in a 26-year-old HIV-positive man.

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Background. Bacillus species are aerobic or facultative anaerobic, gram-positive, or gram-variable spore-forming rods. They are ubiquitous in the environmental sources.

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