Publications by authors named "Fabio Peixoto"

Background: Cutaneous leishmaniasis (CL) caused by Leishmania (Viannia) braziliensis is associated with an inflammatory response. Granzyme (GzmB) and IL-1β play a key role in the pathology. Meglumine antimoniate (MA) is the first-choice drug for the treatment of CL, but therapy failure is observed in up to 50% of the cases.

View Article and Find Full Text PDF

Exosomes, organelles measuring 30-200nm, are secreted by various cell types. exosomes consist of many proteins, including heat shock proteins, annexins, Glycoprotein 63, proteins exerting signaling activity and those containing mRNA and miRNA. Studies have demonstrated that exosomes downregulate IFN-γ and inhibit the expression of microbicidal molecules, such as TNF and nitric oxide, thus creating a microenvironment favoring parasite proliferation.

View Article and Find Full Text PDF

Patients with cutaneous leishmaniasis (CL) present an exacerbated inflammatory response associated with tissue damage and ulcer development. In recent years, higher rates of failure to pentavalent antimoniate therapy have been observed, yet the underlying reason remains poorly understood. We hypothesize that the eicosanoid PGE2 favours the establishment of infection by , which contributes to therapeutic failure.

View Article and Find Full Text PDF

Patients with cutaneous leishmaniasis (CL) due to infection have an exacerbated inflammatory response associated with tissue damage and ulcer development. An increase in the rate of patients who fail therapy with pentavalent antimony has been documented. An adjuvant therapy with an anti-inflammatory drug with the potential of killing would benefit CL patients.

View Article and Find Full Text PDF

Background: Androgen deprivation therapy (ADT) combined with apalutamide, abiraterone acetate plus prednisone, enzalutamide, or docetaxel are the standard treatments for advanced castration-sensitive prostate cancer (CSPC). We investigated ADT-free alternatives for advanced CSPC.

Patients And Methods: LACOG 0415 is a phase 2, open-label, non-comparative, randomized trial.

View Article and Find Full Text PDF

Cutaneous leishmaniasis (CL) patients present an exacerbated inflammatory response associated with tissue damage and ulcer development. Increasing numbers of patients have exhibited treatment failure, which remains not well understood. We hypothesized that adjuvant anti-inflammatory therapy would benefit CL patients.

View Article and Find Full Text PDF

Cutaneous leishmaniasis (CL) due to is associated with an exaggerated inflammatory response and tissue damage. Miltefosine is more effective than pentavalent antimony (Sb) in the treatment of CL, and here, we evaluate the ability of Sb, miltefosine, and GM-CSF administered intravenously, orally, or topically, respectively, to modify the immune response. Patients were treated with miltefosine GM-CSF, miltefosine placebo, or Sb.

View Article and Find Full Text PDF

Background: Testosterone suppression is the standard treatment for advanced prostate cancer, and it is associated with side-effects that impair patients' quality of life, like sexual dysfunction, osteoporosis, weight gain, and increased cardiovascular risk. We hypothesized that abiraterone acetate with prednisone (AAP) and apalutamide, alone or in combination, can be an effective hormonal therapy also possibly decreasing castration-associated side effects.

Methods: Phase II, open-label, randomized, efficacy trial of abiraterone acetate plus prednisone (AAP) and Androgen Deprivation Therapy (ADT) versus apalutamide versus the combination of AAP (without ADT) and apalutamide.

View Article and Find Full Text PDF

Purpose: The purpose of our study was to evaluate the clinical impact of 68Ga-PSMA PET / CT in the setting of biochemical recurrence of prostate cancer.

Materials And Methods: We retrospectively evaluated 125 prostate cancer patients submitted to the 68Ga-PSMA PET / CT due to biochemical recurrence. The parameters age, Gleason score, PSA levels, and the highest SUVmax were correlated to potential treatment changes.

View Article and Find Full Text PDF

Purpose: The aim of this study was to assess the impact of sunitinib treatment in a non-screened group of patients with metastatic renal cell cancer (mRCC) treated by the Brazilian Unified Health System (SUS) at a single reference institution.

Material And Methods: Retrospective cohort study, which evaluated patients with mRCC who received sunitinib between May 2010 and December 2013.

Results: Fifty-eight patients were eligible.

View Article and Find Full Text PDF

Purpose: To study the beta-catenin gene in a group of Mayer-Rokitansky-Küster-Hauser patients.

Methods: Twelve patients with the Mayer-Rokitansky-Küster-Hauser syndrome were included in this study. DNA was extracted from peripheral blood and the region codifying beta-catenin GSK-3beta phosphorylation sites on exon 3 was amplified.

View Article and Find Full Text PDF

Objective: To evaluate the efficacy and tolerability of a vaginal pessary containing 750 mg of metronidazole and 200 mg of miconazole nitrate used daily for 7 days in the treatment of vaginitis.

Methods: Ninety-two women with vaginitis participated in this phase 3 study using one vaginal pessary daily for 7 days. Gynecological and microbiological evaluations were carried out prior to and following treatment.

View Article and Find Full Text PDF

Purpose: The aim of this study was to investigate whether mRNA expression of the apoptosis-associated genes, XAF1 and XIAP, in bladder cancer patients correlates with response to neoadjuvant treatment.

Methods: Gene expression was analyzed by a real-time quantitative PCR method in paired samples from 14 bladder cancer patients treated with a combination of neoadjuvant gemcitabine and cisplatin. The prognostic significance of XAF1 and XIAP mRNA expression as well as the correlation with several clinical and pathological findings were evaluated.

View Article and Find Full Text PDF

Objectives: Gemcitabine and cisplatin (GC) is an active combination in the treatment of metastatic bladder cancer. We have prospectively analyzed the efficacy and tolerability of GC as neoadjuvant treatment of invasive bladder cancer.

Materials And Methods: In this single-institution phase II trial, patients with muscle-invasive transitional cell carcinoma received three cycles of gemcitabine 1200 mg/m2 on days 1 and 8 with cisplatin 75 mg/m2 on day 1 prior to surgery.

View Article and Find Full Text PDF

Purpose: Positive effects on premenstrual symptoms have been observed with low-dose oral contraceptives. Drospirenone is a synthetic progestogen with antiandrogenic and antimineralocorticoid effects. This open-label, multicenter study evaluated the effects of a combination of ethinylestradiol 30 microg and drospirenone 3 mg on safety, cycle control, general well-being and fluid-related symptoms in women with premenstrual disorders requesting contraception.

View Article and Find Full Text PDF