Publications by authors named "Bemanian M"

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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  • 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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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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  • The study investigates the safety of a single-step sensitization test for Hymenoptera venom, aiming to improve diagnostic measures for anaphylaxis due to insect stings.
  • Conducted in Golestan province, Iran, the study involved 33 patients who received a skin test using undiluted venom extracts from three types of stinging insects.
  • Results indicated a low incidence of allergic reactions, with most patients showing negative skin test results and only minor skin reactions that resolved quickly, suggesting the approach is safe.
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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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  • Severe combined immunodeficiencies (SCIDs) are genetic disorders leading to malfunctioning immune systems due to issues with T and B cells, with many cases linked to RAG mutations.
  • This report details two siblings who both had SCID caused by a new mutation in the RAG2 gene, affecting their immune responses and leading to serious health complications.
  • The findings emphasize the importance of ongoing research to better understand the mutation's effects, as well as improving communication among healthcare professionals to enhance patient care.
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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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Psychological distress is linked to unhealthy eating behaviors such as emotional eating and consumption of high-sugar food and drinks. Cross-sectional studies from early in the COVID-19 pandemic showed a high occurrence of worries and psychological distress, and this was associated with emotional eating. Few larger studies have examined how this coping pattern develops over time.

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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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  • - 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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Consumption of nuts and seeds is associated with a range of health outcomes. Summarizing the best evidence on essential health outcomes from the consumption of nuts is essential to provide optimal recommendations. Our objective is to comprehensively assess health outcome associations related to the consumption of nuts and seeds, using a culinary definition including tree nuts and peanuts (registered in PROSPERO: CRD42021258300).

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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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Chronic and harmful substance use is associated with a cluster of harms to health, including micronutrient deficiencies. Maintaining adequate levels of vitamin D is important for musculoskeletal and other aspects of health. In this prospective longitudinal cohort study, 666 participants drawn from outpatient opioid agonist therapy (OAT) clinics and community care clinics for substance use disorder in Western Norway were assessed annually for determination of serum 25-hydroxyvitamin D [s-25(OH)D] levels.

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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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People with severe substance use disorder (SUD) have a higher burden of micronutrient deficiency compared with the general population. The aim of this study was to investigate vitamin B12 status and risk factors of deficiency related to substance use, opioid agonist therapy (OAT), as well as hepatitis C infection and liver fibrosis. In this prospective cohort study, participants were recruited from outpatient OAT and SUD clinics in western Norway, and assessed annually with a clinical interview and exam, including venous blood sampling.

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Substance use disorder (SUD) is associated with poor nutrition. Vitamin B9, or folate, is an important micronutrient for health. The aim of this prospective longitudinal cohort study was to assess serum folate levels among people with SUD and to investigate the impact of factors related to substance use severity on folate status.

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  • * The research involved 19 patients, primarily females, with skin reactions being the most common symptom; most stings occurred in the lower limbs during mornings and evenings, mainly in Hormozgan province.
  • * All cases of anaphylaxis were linked to the samsum ant, with allergy testing confirming that fire ant extracts were effective in identifying the allergy in patients.
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Background: The role of nutrition and dietary patterns has been widely investigated in cancer, cardiovascular disease, and diabetes, but there are limited data on nutritional impact on COPD. This systematic review (PROSPERO-reg. no: CRD42020172712) aimed to investigate the effect of nutritional interventions on pulmonary and physical function, inflammation, and health-related quality of life among individuals with COPD.

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Allergic proctocolitis is a cell-dependent food allergy that is present in both breast and formula-fed infants. The presence of blood with different amounts in the stool is the main manifestation of the disease. Different results have been published on the accuracy and specificity of the atopic patch test (APT).

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Background: Intravenous immunoglobulins (IVIg) are the major treatment in inborn errors of immunity (IEI) disorders; However, IVIg infusions show some adverse effects. We aimed to assess the adverse reactions of IVIg infusions.

Methods: Data of IVIg infusions in IEI patients were collected from 2011 to 2021.

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  • - The study evaluated the effectiveness of oral immunotherapy (OIT) for desensitizing patients with IgE-mediated egg white allergies by comparing clinical and laboratory results before and after treatment.
  • - Conducted on eight patients over six months, the results showed that all patients in the OIT group were desensitized and could tolerate 40 cc of raw egg white, unlike controls who failed the Oral Food Challenge.
  • - Findings revealed significant reductions in skin reaction and specific IgE levels post-OIT, indicating that this treatment could be a safe and effective method for managing egg allergies.
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