Envelope Protein in Differential Serodiagnosis of Dengue, Zika, and Chikungunya Viruses: A Systematic Review.

Objectives: This systematic review was conducted to evaluate the applicability of the envelope (E) protein in the diagnosis of arboviruses.

Methods: This review was performed in accordance with the PRISMA statement. Five databases were explored (PubMed, Web of Science, Scopus, EMBASE, and IEDB).

"Antibacterial effect and possible mechanism of action of 1,3,4-oxadiazole in Staphylococcus aureus".

Staphylococcus aureus is one of the main etiological agents causing foodborne diseases, and the development of new antibacterial agents is urgent. This study evaluated the antibacterial activity and the possible mechanism of action of the 1,3,4-oxadiazole LMM6 against S. aureus.

Photodynamic inactivation by hypericin-P123 on azole-resistant isolates of the Trichophyton rubrum complex as planktonic cells and biofilm.

Introduction: The Trichophyton rubrum complex comprises the majority of dermatophyte fungi (DM) responsible for chronic cases of onychomycosis, which is treated with oral or topical antifungals. However, owing to antifungal resistance, alternative therapies, such as photodynamic therapy (PDT), are needed. This study investigated the frequency of the T.

Successful treatment of experimental murine vulvovaginal candidiasis with gentian violet.

This study evaluated the antifungal efficacy of gentian violet (GV) in an experimental vulvovaginal candidiasis (VVC) model. susceptibility and cytotoxicity assays were performed to validate the antifungal potential and safety of GV. The antifungal efficacy was then evaluated through comparative analysis of the fungal burden following treatment with GV or nystatin, as well as assessment of the vaginal tissue by histology and electron microscopy.

In vitro antifungal activity of curcumin mediated by photodynamic therapy on Sporothrix brasiliensis.

Background: Sporothrix brasiliensis is a pathogenic dimorphic fungus that affects humans and animals causing sporotrichosis. The treatment of this disease with conventional antifungals commonly results in therapeutic failures and resistance. Therefore, this study aimed to evaluate the in vitro effect of curcumin (CUR) mediated by photodynamic therapy (PDT) in its pure state and incorporated into pharmaceutical formulation in gel form, on the filamentous and yeast forms of S.

Analysis of the antifungal potential of extract against .

To investigate the antifungal potential of extracts against . Extracts were obtained as aqueous (EfraMat-22 and EfraMat-45) and methanolic/ethyl acetate fractions. Broth microdilution and disk diffusion assays showed that EfraMat-45 provided the best results in terms of minimum inhibitory concentration.

Cell wall associated proteins involved in filamentation with impact on the virulence of Candida albicans.

Candida albicans is a commensal microorganism of the human microbiota that can be associated with superficial to disseminated infections. This species possesses several attributes that contribute to pathogenesis and virulence, such as the ability to transition from yeast to hyphae forms. During this transition, several changes occur in the fungal cell wall, which is the first point of contact between the pathogen and the host.

Photoactivity of hypericin: from natural product to antifungal application.

Considering the multifaceted and increasing application of photodynamic therapy (PDT), in recent years the antimicrobial employment of this therapy has been highlighted, because of the antiviral, antibacterial, antiparasitic, and antifungal activities that have already been demonstrated. In this context, research focussed on antimycological action, especially for treatment of superficial infections, presents promising growth due to the characteristics of these infections that facilitate PDT application as new therapeutic options are needed in the field of medical mycology. Among the more than one hundred classes of photosensitizers the antifungal action of hypericin (Hyp) stands out due to its ability to permeate the lipid membrane and accumulate in different cytoplasmic organelles of eukaryotic cells.

The zoonosis sporotrichosis can be successfully treated by photodynamic therapy: A scoping review.

Sporotrichosis is a worldwide zoonosis, prevalent in tropical and subtropical regions. In recent years, there has been a substantial increase in human and feline cases reported in Brazil. Despite this, the antifungal treatment for sporotrichosis is still limited, and thus, research into new therapeutic modalities must be encouraged.

New approach to the use of propolis against dermatomycosis.

In recent years, propolis extract (PE) has demonstrated antimicrobial and anti-inflammatory properties. The aim of this study was to evaluate the antifungal activity of a bioadhesive thermoresponsive system containing 16% propolis (BTSP 16%) against , , and . We also evaluated PE alone against the same strains.

Efficacy of Ebselen Against Invasive Aspergillosis in a Murine Model.

Invasive aspergillosis is one of the major causes of morbidity and mortality among invasive fungal infections. The search for new antifungal drugs becomes imperative when existing drugs are not able to efficiently treat these infections. Ebselen, is an organoselenium compound, already successfully approved in clinical trials as a repositioned drug for the treatment of bipolar disorder and prevention of noise-induced hearing loss.

Hypericin-P123-photodynamic therapy in an ex vivo model as an alternative treatment approach for onychomycosis caused by Fusarium spp.

BackgroundFusarium has been considered an opportunistic pathogen, causing several infections in humans, including onychomycosis. In addition, a high resistance to conventional antifungals has been linked to this genus. Photodynamic Therapy (PDT), known as a non-invasive therapy, can be an alternative treatment for fungal infections, based on the excitation of a photosensitizing compound (PS) by a specific length of light, causing damage to the target.

Fungicidal Activity of a Safe 1,3,4-Oxadiazole Derivative Against .

is the most common species isolated from nosocomial bloodstream infections. Due to limited therapeutic arsenal and increase of drug resistance, there is an urgent need for new antifungals. Therefore, the antifungal activity against and in vivo toxicity of a 1,3,4-oxadiazole compound (LMM6) was evaluated.

A systematic review of photodynamic therapy as an antiviral treatment: Potential guidance for dealing with SARS-CoV-2.

Background: SARS-CoV-2, which causes the coronavirus disease (COVID-19), presents high rates of morbidity and mortality around the world. The search to eliminate SARS-CoV-2 is ongoing and urgent. This systematic review seeks to assess whether photodynamic therapy (PDT) could be effective in SARS-CoV-2 inactivation.

Different expression levels of and genes contribute to recurrent vulvovaginal candidiasis by .

To study the behavior of in women with vulvovaginal candidiasis (VVC), recurrent VVC (RVVC) and asymptomatic (AS), regarding adhesion on HeLa cells and their ability to express secreted aspartic proteinases () genes, agglutinin-like sequence () genes and . The adhesion of to HeLa cells was evaluated by colony-forming units, and the expressed genes were evaluated by qRT-PCR. AS and VVC isolates showed greater ability to adhere HeLa cells when compared with RVVC isolate.

Nanoencapsulated hypericin in P-123 associated with photodynamic therapy for the treatment of dermatophytosis.

The antifungal application of photodynamic therapy (PDT) has been widely explored. According to superficial nature of tinea capitis and the facility of application of light sources, the use of nanoencapsulated hypericin in P-123 associated with PDT (P123-Hy-PDT) has been a poweful tool to treat this pathology. Thus, the aim of this study was to evaluate the efficiency of P123-Hy-PDT against planktonic cells and in a murine model of dermatophytosis caused by Microsporum canis.

Impact of serial systemic infection on virulence factors.

To evaluate changes in virulence and pathogenicity approaches from after successive passages in a murine model of systemic candidiasis. Phenotypic assays were performed using colonies recovered from animals infected serially, totalizing five passages. A progressive infection was observed along the passages, with increased fungal burden and the presence of greater inflammatory areas in the histopathological findings.

Development and in vitro evaluation of buccal mucoadhesive films for photodynamic inactivation of Candida albicans.

Candidiasis is one of the most common diseases that occur in the oral cavity, caused mainly by the species Candida albicans. Methylene blue (MB) has a potential for microbial photoinactivation and can cause the destruction of fungi when applied in Photodynamic Therapy (PDT). Mucoadhesive films are increasingly being studied as a platform for drug application due to their advantages when compared to other pharmaceutical forms.

Two New 1,3,4-Oxadiazoles With Effective Antifungal Activity Against .

infections have become a serious public health problem with high mortality rates, especially in immunocompromised patients, since is the major opportunistic pathogen responsible for systemic or invasive candidiasis. Commercially available antifungal agents are restricted and fungal resistance to such drugs has increased; therefore, the development of a more specific antifungal agent is necessary. Using assays for antifungal activity, here we report that two new compounds of 1,3,4-oxadiazoles class (LMM5 and LMM11), which were discovered by methodologies as possible thioredoxin reductase inhibitors, were effective against .

FATAL cryptococcal meningitis in a child with hyper-immunoglobulin M syndrome, with an emphasis on the agent.

Following a fatal case of Cryptococcus neoformans meningitis in a child with X-linked hyper-immunoglobulin M syndrome (XHIGM), we evaluated the fungal isolate in an experimental infection in a mouse model with respect to microbiology, epidemiology, virulence and response to therapy. The minimum inhibitory concentrations for antifungals in the susceptibility test were 0.5mg/L for amphotericin B, 4.

Serial Systemic Infection Highlighted by Proteomics.

is the major pathogen isolated from nosocomial bloodstream infections, leading to higher mortality rates. Thus, due to its clinical relevance, studies aiming to understand host-pathogen interactions in infection are necessary. Therefore, we performed proteomic analysis using a murine model of serial systemic infection by to evaluate possible changes in the protein profile of the pathogen over time.

Copolymeric micelles as efficient inert nanocarrier for hypericin in the photodynamic inactivation of species.

To evaluate the efficacy of photodynamic inactivation (PDI) mediated by hypericin encapsulated in P-123 copolymeric micelles (P123-Hyp) alone and in combination with fluconazole (FLU) against planktonic cells and biofilm formation of species PDI was performed using P123-Hyp and an LED device with irradiance of 3.0 mW/cm . Most of isolates (70%) were completely inhibited with concentrations up to 2.

Repurposing approach identifies new treatment options for invasive fungal disease.

Drug repositioning is the process of discovery, validation and marketing of previously approved drugs for new indications. Our aim was drug repositioning, using ligand-based and structure-based computational methods, of compounds that are similar to two hit compounds previously selected by our group that show promising antifungal activity. Through the ligand-based method, 100 compounds from each of three databases (MDDR, DrugBank and TargetMol) were selected by the Tanimoto coefficient, as similar to LMM5 or LMM11.

Case Reports: Prolonged Detection of Zika Virus RNA in Vaginal and Endocervical Samples from a Brazilian Woman, 2018.

Zika virus (ZIKV) infection is an emerging public health problem, associated with increased risk for Guillain-Barré syndrome and adverse fetal outcomes, including congenital microcephaly. Zika virus sexual transmission is known, but detection of the virus in different parts of the female reproductive tract is not well established. In this case report, we describe prolonged detection of ZIKV RNA in the vaginal secretion and endocervical mucosa from a Brazilian woman convalescent to ZIKV infection.