Publications by authors named "Arshi S"

Background: Hymenoptera venom allergy is a potentially severe allergic reaction in the general population. The only preventative approach in these cases is venom immunotherapy (VIT), which follows different protocols. The recommended initial dose is 0.

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Aim: Dengue virus (DENV) and Chikungunya virus (CHIKV) are the most common arthropod-borne viruses (Arboviruses) globally. So far, no autochthonous cases of DENV and CHIKV infections have been reported in Iran. Nevertheless, due to the recent identification of Aedes aegypti in the south and Aedes albopictus in the north of Iran, the country is at a serious risk of local outbreaks of these infections.

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Article Synopsis
  • Common variable immunodeficiency (CVID) is a significant disorder characterized by both infectious and noninfectious complications, with 66.4% of patients experiencing noninfectious issues such as enteropathy and autoimmunity.
  • In a study of 387 CVID patients, those with B-cell lymphopenia showed higher rates of certain complications, particularly in the dermatologic, endocrine, and musculoskeletal systems.
  • The study highlights the need for routine monitoring and appropriate treatment strategies, including medication alongside immunoglobulin therapy, to manage complications associated with CVID effectively.
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Peroxidases are promising catalysts for oxidation reactions, yet their practical utility has been hindered by the fact that they require hydrogen peroxide (HO), which at high concentrations can cause deactivation of enzymes. Practical processes involving the use of peroxidases require the frequent addition of low concentrations of HO. generation of HO can be achieved using oxidase-type enzymes.

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Background: The poly-sensitization to Hymenoptera venom makes it difficult to select genuine allergens for immunotherapy and increases patients' costs. The objective of this study was to determine the culprit allergen in dual or triple-sensitized patients to three Hymenoptera venoms through molecular diagnosis and evaluating the results of incorporating the molecular diagnosis with skin tests.

Methods: Thirty-two patients with anaphylactic reactions and dual or triple-sensitization to Hymenoptera venoms in skin tests entered this study.

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CHT7 is a regulator of quiescence repression in Chlamydomonas reinhardtii. Initially, CHT7's repression activity was thought to be managed by its DNA-binding CXC domain. Later, it was found that the CHT7-CXC domain is dispensable for CHT7's activities.

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Background: Chronic Rhinosinusitis (CRS) is a paranasal sinus inflammatory disease and is divided into two subgroups defined as CRS with nasal polyps (CRSwNP) and CRS without nasal polyps (CRSsNP). CRSwNP displays a T helper (Th)2 biased phenotype, and based on sensitivity or tolerance to aspirin or non-steroidal anti-inflammatory drugs (NSAID), is further subdivided into Aspirin-exacerbated respiratory disease (AERD) and non-AERD groups. Considering the challenge of diagnosis and treatment in patients with CRSwNP, particularly the AERD subtype, and the significance of endotyping in these patients, we examined the immune profile and endotyping based on gene expression analysis in the AERD and the non-AERD groups of patients with CRSwNP.

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The C-terminal Jα-helix of the Avena sativa's Light Oxygen and Voltage (AsLOV2) protein, unfolds on exposure to blue light. This characteristic seeks relevance in applications related to engineering novel biological photoswitches. Using molecular dynamics simulations and the Markov state modeling (MSM) approach we provide the mechanism that explains the stepwise unfolding of the Jα-helix.

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  • Visceral leishmaniasis (VL) is a serious neglected tropical disease, with a study conducted in 10 provinces of Iran from 2013 to 2022 assessing its prevalence in humans and dogs.
  • A total of 21,281 human and 5,610 canine serum samples were analyzed, revealing a 2.1% seroprevalence in humans and a 20.1% seroprevalence in domestic dogs, with higher rates found in specific regions of Iran.
  • Despite a decline in human cases over the past decade, the significant prevalence of canine VL indicates ongoing public health concerns.
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A number of different neurological complications have been reported following vaccination against the coronavirus disease 2019 (COVID-19). Electroencephalogram (EEG) is one of the modalities used to evaluate the neurological complications of diseases. The aim of the present study was to identify the EEG changes in participants vaccinated against COVID-19.

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Human monkeypox is a zoonotic infection that is similar to the diseases caused by other poxviruses. It is endemic among wild rodents in the rainforests of Central and Western Africa, and can be transmitted via direct skin contact or mucosal exposure to infected animals. The initial symptoms include fever, headache, myalgia, fatigue, and lymphadenopathy, the last of which is the main symptom that distinguishes it from smallpox.

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  • This study analyzed 69 patients suspected of having Leukocyte Adhesion Deficiency-I (LAD-I) over a 15-year period to better classify the severity based on clinical, laboratory, and genetic findings.
  • The majority of patients were diagnosed at a median age of 6 months, with a notable delayed diagnosis and high rates of severe cases, leading to a 44.9% mortality rate.
  • Genetic testing revealed several mutations associated with the disease, highlighting the importance of early detection and awareness among physicians to improve patient outcomes and support families with a history of LAD-I.
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  • NSAID-exacerbated respiratory disease (N-ERD) is a complex condition diagnosed mostly through aspirin challenge tests, which can be risky and time-consuming.
  • This study followed patients undergoing standard medical treatment for three months, measuring symptom severity using the Sinonasal Outcome Test (SNOT22).
  • Results indicated that aspirin sensitivity in patients was not reliably predicted by the severity of their symptoms or by their improvement after treatment, with both aspirin-sensitive and tolerant patients showing similar symptom reductions.
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Background And Objectives: Since the coronavirus disease 2019 (COVID-19) pandemic began, several vaccines have been manufactured to subside it. This study aimed to determine the prevalence of side effects after injecting common COVID-19 vaccines available in Iran.

Materials And Methods: This cross-sectional study was accomplished on Shahid Beheshti University of Medical Sciences (Tehran, Iran) employees during January and September 2022.

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Background: The two main pillars of asthma management include regular follow-up and using guidelines in the treatment process. Patient portals enable regular follow-up of disease, and guideline-based decision-support-systems can improve the use of guidelines in the treatment process. Based on the Global Initiative for Asthma (GINA) and Snell's drug interaction, asthma management system in primary care (AMSPC) includes the capabilities of both mentioned systems.

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Background: Chronic rhinosinusitis with nasal polyps (CRSwNP) is a complex disorder and effective treatment remains a major challenge. Some antibiotics with anti-inflammatory properties are reported to have potential to be used as an adjunct therapy in the management of chronic airway inflammation.

Objective: The aim of this study was to evaluate the efficacy of doxycycline in CRSwNP.

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Genetic defects in the development, maturation, and/or function of the immune cells can lead to Inborn errors of immunity (IEI) which may predispose patients to malignancies. The overall risk for cancer in children with IEI ranges from 4 to 25% and the type of malignancy is highly dependent on the specific mutant gene underlying IEI. We investigated 3056 IEI patients registered in the Iranian national registry between the years 1999 and 2020 in this retrospective cohort study.

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Coronavirus disease 2019 (COVID-19) affects millions of people worldwide. Clinical manifestations range from asymptomatic to severe viral pneumonia. CVID patients with COVID-19 infection are not adequately studied.

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Electrochemical methods can be used to selectively modify the surfaces of electrodes, enabling the immobilisation of enzymes on defined areas on the surfaces of electrodes. Such selective immobilisation methods can be used to pattern catalysts on surfaces in a controlled manner. Using this approach, the selective patterning of the enzyme glucose oxidase on the electrodes was used to develop a flow reactor for the controlled delivery of the oxidant HO.

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Article Synopsis
  • - Type 2 Griscelli syndrome (Type 2 GS) is a genetic immune disorder characterized by hypopigmentation and varies in severity of neurological and immunodeficiency symptoms across its types, with specific genetic mutations identified for each type.
  • - Hemophagocytic lymphohistiocytosis (HLH) is a serious condition marked by severe inflammation, which can be either primary or secondary, often associated with autoimmune diseases, infections, or cancers.
  • - The text discusses a case of type 2 GS in a newborn who developed HLH due to a prenatal infection, highlighting the link between prenatal infections and severe complications like HLH.
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Tocilizumab is an interleukin (IL)-6 receptor inhibitor that has been proposed as a therapeutic agent for treating coronavirus disease 2019 (COVID-19). The aim of this umbrella review was to determine the efficacy of tocilizumab in treating COVID-19, and to provide an overview of all systematic reviews on this topic. We systematically searched PubMed, Scopus, the Web of Science collection, the Cochrane library, Epistemonikos, and Google Scholar, as well as the medRxiv preprint server.

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Objective: Sesame allergy is the most prevalent allergy to seeds. Oral immunotherapy (OIT) is defined as continuous consumption of an allergen at special doses and time. Omalizumab (Anti-IgE) increases tolerance to allergens used in OIT.

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Background: Progressive multifocal leukoencephalopathy is a rare demyelinating disease that is often secondary to lytic destruction of oligodendrocytes and, to a lesser extent, to astrocytes' response to human neurotrophic John Cunningham polyomavirus. Any underlying congenital disorder of primary or secondary immunodeficiency may predispose to virus infection and possible invasion of the brain. We present the first reported case of progressive multifocal leukoencephalopathy due to a mutation in the RAC2 gene.

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Immunotherapy may induce sustained unresponsiveness (SU )in which the patient can tolerate the allergen without any severe symptoms after discontinuing immunotherapy. The present study evaluated serum and cutaneous markers for predicting SU in patients with wheat anaphylaxiswho underwent oral immunotherapy. We investigated the effectiveness of a flexible regimen of 5 to 10 g wheat protein (WP) in the maintenance phase of oral immunotherapy (OIT).

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Sleep characteristics vary between populations. Detrimental sleep habits have cognitive consequences leading to daytime functioning debilitation. Until now no study has been done to investigate sleep characteristics in Iran thoroughly.

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