Publications by authors named "Mahdi Abastabar"

Background: The emergence of resistance in dermatophytes underscores the necessity for developing novel and alternative treatment options.

Methods: The present study aimed to evaluate the in vitro activity of nanoliposomal amphotericin B against a large panel of terbinafine-resistant Trichophyton indotineae isolates. In vitro susceptibility testing of nanoliposomal amphotericin B and comparators against 50 clinical isolates of terbinafine-resistant T.

View Article and Find Full Text PDF

Background: Undiagnosed hypertension (HTN) and diabetes mellitus (DM) are major public health challenges worldwide. We aimed to investigate the prevalence of undiagnosed HTN and DM, and their correlates, in a large-scale population-based cohort study.

Methods: In this cross-sectional study, data collected during the enrollment phase of the Tabari Cohort study (TCS) were utilized.

View Article and Find Full Text PDF

In recent years, the widespread emergence of drug resistance in yeasts and filamentous fungi to existing antifungal armamentariums has become a severe threat to global health. There is also concern regarding increased rates of azole resistance in Aspergillus fumigatus and Terbinafine resistance in Trichophyton species. To overcome this concern of resistance to regular therapies, new antifungal drugs with novel and effective mechanisms are crucially needed.

View Article and Find Full Text PDF
Article Synopsis
  • - The study investigates the prevalence of azole-resistant Aspergillus fumigatus (ARAf) in Iranian cystic fibrosis (CF) patients, noting that although common fungal infections include Candida species, ARAf poses a significant risk for severe lung infections.
  • - Researchers collected and analyzed 120 sputum samples from 103 CF patients, finding that 84.2% were positive for filamentous fungi, with the majority being Aspergillus species and a smaller percentage being Candida species.
  • - Among the Aspergillus isolates, 46.5% belonged to the Fumigati section, and 14 showed resistance to azole antifungals, indicating a 9% prevalence of ARAf in the total fungal
View Article and Find Full Text PDF

, an emerging non- multidrug-resistant yeast, has become a significant cause of invasive candidiasis in healthcare settings. So far, data on the metabolites of in different clades are minimal, and no studies have focused on clade V metabolites. Therefore, Gas chromatography-mass spectrometry (GC-MS) was used for the metabolomic profiling of clade I compared with fluconazole-resistant and susceptible in clade V strains.

View Article and Find Full Text PDF

Background: Although the Candida species continue to be the most frequent colonizer of neonatal skin, a clear increase of colonization due to rare yeast-like fungi has been reported. In this study, we report an unusual high prevalence of Cryptococcus diffluens colonization in neonates admitted to the neonatal intensive care unit (NICU) over a 1-month period.

Methods: From January 2020 to June 2021, the study included all neonates who were admitted to the NICU of Bu Ali Sina Hospital at least 28 days old.

View Article and Find Full Text PDF

Background And Purpose: In diabetic foot ulcers, if fungal agents, such as species penetrate the cutaneous or depth of the ulcer, it can increase the wound severity and make it more difficult to heal.

Materials And Methods: A cross-sectional study was performed on 100 diabetic patients with a foot ulcer from December 2019 to November 2020 in northern Iran. Patient data and wound grades were recorded in a questionnaire.

View Article and Find Full Text PDF

Background And Purpose: species are commonly resistant to many antifungal drugs. The limited therapeutic options available have led to a surge of research efforts aimed at discovering novel antifungal compounds in recent decades. This study aimed to assess the antifungal activity of plant-based biosynthesized selenium nanoparticles (Se NPs) and six comparators against a set of clinical strains.

View Article and Find Full Text PDF
Article Synopsis
  • * Among 647 positive cases, 280 were identified as TMTISG, primarily from tinea corporis and tinea cruris, with 14.3% (40 cases) showing resistance to terbinafine (TRB).
  • * Molecular analysis revealed that most TRB-resistant isolates had mutations in the squalene epoxidase (SQLE) gene, particularly the PheLeu mutation, which appears
View Article and Find Full Text PDF

Background: The current study aimed to identify Iranian Nakaseomyces (Candida) glabrata complex species in the clinical isolates and determine their antifungal susceptibility profile.

Methods: In total, 320 N. glabrata clinical isolates were collected from patients hospitalized in different geographical regions of Iran.

View Article and Find Full Text PDF

Candidiasis is a common fungal infection caused by species, with being the most prevalent. Resistance to azole drugs, commonly used to treat infections, poses a significant challenge. Transcriptional activator candidate 1 () gene has emerged as a key player in regulating drug resistance in .

View Article and Find Full Text PDF

Background And Purpose: is a multidrug-resistant yeast that rapidly spreads, making it the leading Candidate for the next pandemic. One main leading cause of emerging resistant isolates is nonsynonymous mutations. This study aimed to detect the Y132F mutation, one of the most important azole resistance-associated mutations in the gene of , by developing a reliable high-resolution melt (HRM)-based method.

View Article and Find Full Text PDF

Introduction: Wrestling, considered the national sport of Iran, has gained immense popularity among Iranians. Wrestlers frequently encounter skin conditions, with dermatophyte fungal infections, particularly tinea gladiatorum (TG), being a common issue. TG, caused by the Trichophyton genus, has emerged as a major health concern for wrestlers and other contact sport athletes worldwide.

View Article and Find Full Text PDF

Background: Viral pneumonia such as COVID-19-associated aspergillosis could increase susceptibility to fungal super-infections in critically ill patients.

Methods: Here we report a pediatric case of Aspergillus quadrilineatus cerebral infection in a recently diagnosed COVID-19-positive patient underlying acute lymphocytic leukemia. Morphological, molecular methods, and sequencing were used to identify this emerging species.

View Article and Find Full Text PDF

Background And Purpose: Given the high mortality rate of invasive candidiasis in hospitalized pediatric patients, it is crucial to establish a predictive system to achieve early diagnosis and treatment of patients who are likely to benefit from early antifungal treatment. This study aimed to assess the colonization index, species distribution, and antifungal susceptibility pattern of strains isolated from pediatric patients with high colonization index (CI).

Materials And Methods: This study was carried out at the Children's Medical Center in Tehran-Iran.

View Article and Find Full Text PDF
Article Synopsis
  • A case study reports a human infection of tinea corporis caused by a dermatophyte, commonly found in rodents and camels, highlighting its ability to infect humans after the patient had contact with camels.
  • The 15-year-old girl presented with a large, pruritic, cup-shaped lesion on her wrist, which was diagnosed through skin scraping and culture, revealing the infectious organism's unique morphology.
  • Successful treatment was achieved using oral terbinafine and topical ketoconazole, but the study emphasizes that this dermatophyte is often misidentified, indicating the need for better awareness and identification methods in similar cases, especially in Iran where it was previously unreported.
View Article and Find Full Text PDF

Background And Purpose: species are ubiquitous environmental fungi, which are considered emerging agents that trigger disease in humans and animals. The present study aimed to determine strain isolated from paddy field soil samples using semi-selective media and evaluate its antifungal susceptibility profile.

Materials And Methods: Three paddy field soil samples were collected during an investigation for the isolation of species in Mazandaran province, Iran.

View Article and Find Full Text PDF

The indoor environment of hospitals should be considered as an important reservoir of azole resistant species. In this study, we evaluated azole-containing agar plates (ACAPs) and antifungal susceptibility testing (AFST) for the detection of azole-resistant species in hospital environmental samples. Between September 2021 and January 2022, environmental samples (108 instruments and 12 air) were collected from different wards of 4 educational hospitals in Mazandaran province, Iran.

View Article and Find Full Text PDF

Aims: Umbelliprenin has shown promising biological activities, including immunoregulatory, anti-inflammatory, and anti-cancer effects. The present study investigated the growth inhibitory and apoptotic effects of umbelliprenin against Candida albicans in a BALB/c mice model of disseminated candidiasis.

Methods And Results: First, an antimicrobial assay via microdilution sensitivity test was performed.

View Article and Find Full Text PDF

Fusarium species are an emerging cause of onychomycosis, and the number of cases has dramatically increased in recent decades worldwide. This review presents an overview of the onychomycosis cases caused by Fusarium species and diagnosis and treatment that have been reported in the literature. The most common causative agent of onychomycosis is F.

View Article and Find Full Text PDF

Objective: Opportunistic fungal infections by species arise among cancer patients due to the weakened immune system following extensive chemotherapy. Prophylaxis with antifungal agents have developed the resistance of spp. to antifungals.

View Article and Find Full Text PDF

Several prolonged and significant outbreaks of dermatophytosis caused by , a new emerging terbinafine-resistant species, have been ongoing in India in recent years, and have since spread to various countries outside Asia. Miltefosine, an alkylphosphocholine, is the most recently approved drug for the treatment of both visceral and cutaneous leishmaniasis. Miltefosine in vitro activity against terbinafine-resistant and susceptible / species complex, including , is limited.

View Article and Find Full Text PDF