Publications by authors named "Sadegh Khodavaisy"

Aspergillosis is one of the most common human fungal infections. The invasive form of this infectious disease has high mortality rates. Moreover, antifungal resistance has been increasing, thereby limiting treatment options.

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Opportunistic fungal infections (OFIs) are common among human immunodeficiency virus (HIV) -positive patients, especially in those with delayed diagnosis and treatment. Patients with severe HIV/AIDS with clusters of differentiation 4 (CD4) counts less than 100 are significantly prone to develop multiple OFIs. In the current study, we present a case of co-infection of pulmonary aspergillosis and cryptococcal meningitis in a late-diagnosed HIV patient with a low CD4 count.

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Background & Objective: Mucormycosis has emerged as a severe complication in COVID-19 patients, particularly among those with uncontrolled diabetes and those receiving corticosteroid therapy. The infection's tendency to spread from the sinuses to the orbit and central nervous system (CNS) significantly increases morbidity and mortality. This study aimed to identify clinical risk factors and outcomes associated with disease severity and mortality in COVID-19-associated mucormycosis (CAM), with a focus on disease progression to orbital and CNS involvement.

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Introduction: Cryptococcal meningitis (CM) typically affects immunocompromised individuals and are commonly caused by Cryptococcus neoformans.

Case Report: We present CM case involving an immunocompetent male due to Cryptococcus gattii molecular type VGI.

Results: This case illustrates the diagnostic and management challenges associated with CM and emphasizes the need for continued vigilance in monitoring and understanding the epidemiology of cryptococcal infections in diverse patient populations.

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Purpose: The incidence of Mucormycosis has increased during the last decades globally due to more patients being at risk for these life-threatening infections. Early diagnosis and proper selection of appropriate antifungal therapy are vital in enhancing patient outcomes. Mucorales species present a significant challenge due to their resistance to many drugs, so investigations for new therapies and strategies must be undertaken.

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COVID-19-associated pulmonary aspergillosis (CAPA) is a complication of COVID-19. Galactomannan (GM) is a non-invasive test used to diagnose invasive aspergillosis. We collected the existing studies on the diagnostic value of GM to determine a GM level for predicting CAPA.

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Background And Objectives: Aspergillus infection has several manifestations, ranging from noninvasive aspergillosis to invasive pulmonary and cerebral aspergillosis. Prophylaxis and treatment regimens for aspergillosis rely on triazoles, echinocandins, and polyenes, with specific efficacies, complications, and resistance patterns. Drug selection presents challenges, including differences in resistance rates, drug interactions, and concerns about side effects with long-term use.

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Background: The rising prevalence of nosocomial infections, particularly those caused by airborne fungal spores in operating rooms and intensive care units (ICUs), has become a significant public health concern. species in water systems pose a severe threat to immunocompromised patients and can disseminate as aerosols through devices such as faucets and showers. This study aimed to isolate and identify species from the water systems of the ICUs and transplant units at Imam Khomeini Hospital Complex and Shariati Hospital in Tehran, Iran, as potential sources of future outbreaks.

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Background & Objective: , a major contributor to COVID-19-associated mucormycosis (CAM) globally. Nanoliposomal amphotericin B (NLAmB) presents a promising approach due to its enhanced drug delivery and reduced side effects. This study aimed to assess the antifungal susceptibility of NLAmB against isolated from CAM patients.

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Objective: Irritable bowel syndrome (IBS) and inflammatory bowel disease (IBD) are gastrointestinal disorders, which can be triggered by gut microbiota dysbiosis. The development of IBS-like symptoms has been linked to the overgrowth of spp. In addition, the critical role of fungi has been highlighted in the pathogenesis of IBD.

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In Iran, there is limited information regarding the species distribution and antifungal susceptibility profiles of yeast isolates from drug addicts suffering from oral candidiasis (OC). In this study, 104 yeast isolates, including 98 Candida species and 6 uncommon yeasts, were collected from 71 drug abusers with OC. The susceptibility profiles of Candida spp.

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Introduction: Coronavirus disease 2019 (COVID-19) has been associated with secondary fungal infections such as mucormycosis. We investigated the relapse rate of mucormycosis and its risk factors.

Methodology: A prospective study was conducted on COVID-19-associated mucormycosis (CAM) patients discharged from Imam Khomeini Hospital Complex, Tehran, Iran, from July 2021 to February 2022.

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Article Synopsis
  • The study focused on comparing the effectiveness of chlorhexidine (CHX) and seven antifungal agents against fungi from patients with fungal keratitis (FK).
  • Testing involved 73 fungi samples using a standard method, where CHX demonstrated notable efficacy against various types of fungi at specific concentrations.
  • Results suggested that CHX could be a cost-effective topical treatment for FK, especially in areas with limited access to antifungal medications, while posaconazole was identified as the most effective antifungal overall.
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Background And Objectives: Fungal burn wound infections (FBWIs) are one of the most disastrous complications in burn patients. The present study investigated the incidence and the species distribution of fungal agents isolated from burn lesions and reviewed the feautures, underlying conditions, and outcomes of patients.

Materials And Methods: The wounds were swabbed and cultured on Sabouraud Dextrose Agar with chloramphenicol medium.

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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
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There has been a rise in COVID-19-associated mucormycosis (CAM) cases, particularly in low-income countries. We describe a case of primary cutaneous mucormycosis after recovering from COVID-19 in a kidney transplant recipient who had a known case of diabetes mellitus. The patient developed cutaneous ulcers due to Rhizopus oryzae in the right hand.

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Background & Objective: Fungal co-infections increase the incidence and mortality of viral respiratory tract infections. This study systematically reviews and conducts a meta-analysis to evaluate the prevalence of COVID-19 patients with fungal coinfections. The aim is to provide a concise overview of the impact of these infections on patient outcomes especially association with risk of mortality, informing future research and optimizing patient management strategies.

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Coexisting pulmonary aspergillosis and tuberculosis in a post-COVID-19 patient is rare. Here, we are going to report a case of combined pulmonary aspergillosis and tuberculosis in a 51-year-old female who was previously diagnosed with COVID-19 pneumonia. The patient was treated with voriconazole and anti-tuberculosis agents.

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Despite remarkable advances in the diagnosis of invasive fungal infections (IFIs), rapid, specific, sensitive, and cost-effective detection methods remain elusive. Due to their stability, ease of production, and specificity to signature molecules of fungal pathogens, short single-stranded sequences of DNA, RNA, and XNA, collectively called aptamers, have emerged as promising diagnostic markers. In this perspective, we summarize recent progress in aptamer-based diagnostic tools for IFIs and discuss how these tools could potentially meet the needs and provide economical and simple solutions for point-of-care for better management of IFIs.

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Magnusiomyces capitatus (M. capitatus) is an emerging opportunistic yeast, rarely found as a causal agent of invasive fungal infection. In this study, we report a 31-year-old man infected with M.

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Background And Purpose: Regarding the wide-spectrum antimicrobial effects of curcumin and silver, this study aimed to evaluate the antifungal activity of green-synthesized curcumin-coated silver nanoparticles (Cur-Ag NPs) against a set of and species.

Materials And Methods: Cur-Ag NPs were synthesized by mixing 200 µL of curcumin solution (40 mM) and 15 mL of deionized water. The mixture was stirred for 3-5 min, followed by the addition of 2.

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Article Synopsis
  • This study focuses on detecting the Y132F mutation in a multidrug-resistant yeast that poses a pandemic threat due to its rapid spread and azole resistance.
  • Five isolates from Iran and three control isolates were tested to analyze antifungal susceptibility and develop a high-resolution melt (HRM) assay for mutation detection.
  • The HRM method successfully identified the Y132F mutation in one resistant isolate, demonstrating a quick and effective approach to monitor azole resistance in this yeast.
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Yeast species are a group of coexistent microorganisms in the oral cavity that can cause opportunistic infections in vulnerable individuals, including addicts. This study aimed to identify the yeast species profile responsible for oral yeast colonization (OYC) and the associated risk factors in patients with substance use disorder (SUD) in Ahvaz, Iran. Oral samples were collected from drug users hospitalized in 12 addiction treatment centers, and the related clinical information was mined.

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Background: Mucormycosis and aspergillosis are angioinvasive infections mainly occurring in immunocompromised patients. However, mixed infection with mucormycosis and aspergillosis in post-COVID-19 patients is rare. In this report, we will report four cases and comprehensively review the published literature on COVID-19 associated mixed infection of aspergillosis and mucormycosis.

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The fungal nail infection (onychomycosis) involves 18%-40% of all nail disorders, which, although not fatal, can cause mechanical, aesthetic, occupational, and economic problems. Drug treatments due to prolonged treatment periods, drug interactions, adverse effects, and slow progression may associate with numerous negative outcomes. This study aimed to evaluate the long-pulsed 1064-nm Nd: YAG laser effect on fungal colonies and subsequently possible change in the minimum inhibitory concentrations (MICs) of common antifungals compared with the same non-lasered colonies as a novel way to investigate laser and antifungal interaction.

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