Publications by authors named "Paulo Sergio Ramos de Araujo"

Background: The use of antiretrovirals has increased the survival of People Living with HIV/AIDS (PLWHA), resulting in an aging population and a rise in the incidence of sarcopenia. The lack of uniformity among the prevalences found in studies may be associated with the use of different diagnostic criteria, highlighting the need for local studies to determine the prevalence of sarcopenia.

Methods: Cross-sectional study to estimate the prevalence and associated factors of sarcopenia using the revised criteria of the European Working Group on Sarcopenia in Older People (EWGSOP2).

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  • The review addresses the challenges in diagnosing infections related to implants and evaluates the effectiveness of sonicated fluid culture (SFC) compared to traditional methods like periprosthetic tissue culture (PTC).
  • It highlights that different sonication protocols lead to varying results in sensitivity and specificity, with SFC being better at identifying low-virulence pathogens.
  • The study emphasizes the need for standardization of sonication techniques and offers recommendations on best practices, including sample handling and microorganism identification, to improve diagnostic accuracy.
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  • * Conducted on 238 recovered COVID-19 individuals, results showed that hospitalized participants had significantly higher antibody levels and a greater likelihood of maintaining these antibodies over time compared to non-hospitalized ones.
  • * Findings suggest that severe cases of COVID-19 lead to better antibody responses, indicating potential implications for reinfection risk and future vaccination plans.
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  • The study investigates the effectiveness of Chlorella vulgaris extract (CV) and Imiquimod in treating American Tegumentary Leishmaniasis (ATL) by targeting the parasite and modulating the immune response.
  • In vitro tests showed that CV had a higher selectivity index (SI) compared to the reference drug, indicating it is more effective at targeting the parasite while being less toxic to human cells.
  • Results also revealed that both CV and Imiquimod can stimulate immune responses, making them potential therapeutic candidates for ATL treatment.
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Cryptococcal meningitis is a serious infection of the central nervous system that is predominant in developing countries, caused by fungi of the genus , and which affects immunosuppressed patients, especially those with HIV. Here, we aim to diagnose and characterize the clinical-epidemiological profile of cryptococcosis in patients admitted to two tertiary public hospitals in northeastern Brazil. The study is divided into three moments: (1) the isolation of fungus and diagnosis from biological samples collected between 2017 and 2019, (2) a description of the clinical and epidemiological characteristics of the patients, and (3) the experimental tests related to an in vitro susceptibility antifungal profile.

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HIV retinal microangiopathy is an important predictor for increased risk of mortality. Optical coherence tomography angiography (OCTA) can investigate microvascular changes resulting from retinal diseases. Study included 25 persons with HIV and 25 healthy persons.

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Objectives: The purpose of this case-control study was to verify the association between single nucleotide polymorphisms (SNPs) in genes encoding drug transporters related to tenofovir disoproxil fumarate (TDF) and proximal renal tubular dysfunction (PRTD), and the association between PRTD and clinical characteristics.

Methods: The 'cases' met the diagnostic criteria for PRTD, determined by the presence of two or more of the following abnormalities: non-diabetic glycosuria, metabolic acidosis, increased uric acid and phosphorus excretion, decreased tubular phosphorus reabsorption and β2-microglobulinuria. We analyzed eight SNPs in ABCC2, ABCC4, ABCC10 and SLC28A2 genes.

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New therapeutic strategies for visceral leishmaniasis (VL) have been studied, and the development of an immunotherapeutic agent that modulates the host's immune response is necessary. The aim of this study was to evaluate the bioactive extracts of photosynthetic microorganisms (PMs) for their leishmanicidal/leishmanistatic and immunomodulatory potentials. Bioactive extracts from PMs ( and ) were obtained by sonication.

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This study aims to report the diagnostic course and treatment of a fast-growing mycobacteria infection after cesarean delivery. We report the case of a 37-year-old woman admitted to the Infectious Diseases' Clinic of the Hospital das Clinicas da Universidade Federal de Pernambuco, Pernambuco State, Brazil, four months after a cesarean section, presenting with healing difficulties and located pain outside the surgical site. The first diagnosis was a probable rejection of the sutures that were not absorbed, but based on the clinical signs, reported history, complementary laboratory tests and no response to treatment with the conventional antibiotic therapy (cephalosporins/quinolones) prescribed, the ultimate diagnosis was a mycobacteriosis caused by Micobacterium fortuitum.

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16S rRNA methylases confer high-level resistance to aminoglycosides which are used to treat serious infections caused by gram-negative bacteria, such as Acinetobacter spp. Some genes encoding these enzymes are disseminated worldwide, while others were detected in only some countries. The objective was to characterize the susceptibility profile to aminoglycosides (amikacin and gentamicin) of clinical isolates of Acinetobacter spp.

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Individuals infected with human immunodeficiency virus (HIV) have higher morbidity and mortality due to cancer, which is the third most common cause of death in this group, despite the high effectiveness of antiretroviral therapy (ART). We describe the clinical and laboratory characteristics, initial staging and outcome of HIV-related lymphoma.We included 18 patients in the study, of whom 61.

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Systemic infections due to Candida tropicalis are conditions which can frequently lead to death. The aim of this report is to describe the features of C. tropicalis biofilm in a patient with catheter-associated fungemia.

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Introduction: The incidence of syphilis has increased since the 1970s.

Methods: This was a descriptive and analytical cross-sectional study with a non-probabilistic sample.

Results: Of 973 patients with human immunodeficiency virus, 179 (18.

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Coccidioidomycosis is a fungal infection caused by Coccidioides immitis or Coccidioides posadasii. These fungi are known to thrive in desert climate. Fungi produce infectious arthroconidia in soil, they are aerosolized in the air and when inhaled by humans, usually cause infections such as pneumonia.

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Objective: The purpose of this study is to investigate the prevalence of MRSA among people living with HIV/AIDS (PLHA) being monitored in a tertiary outpatient hospital in the state of Pernambuco, in the Brazilian Northeast.

Results: Staphylococcus aureus was isolated from a nasal swab and found in 31.4% of the individuals (95% CI 27.

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Common in four continents, visceral leishmaniasis (VL) is an important but neglected disease. Human immunodeficiency virus (HIV) infection increases the risk of developing VL in people from leishmaniasis-endemic areas, with worse prognosis when there is coinfection. We conducted a cross-sectional study to determine the prevalence of HIV/VL coinfection in patients admitted in three referral hospitals for HIV/acquired immunodeficiency syndrome (AIDS) in Pernambuco, Brazil, and to compare epidemiological, clinical, and laboratory characteristics among HIV/VL coinfected and HIV mono-infected individuals.

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Background: Incomplete virologic suppression results in mutations associated with resistance and is a major obstacle to disease control. We analyzed the genotypic profiles of HIV-1 patients at the time of the first virologic failure and the response to a salvage regimen after 48 weeks.

Methods: This work was a cross-sectional, retrospective, analytical study based on data collected from medical records and genotyping tests between 2006 and 2016.

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Rationale: Total absence of superior vena cava (ASVC) is a very rare anomaly, and the patient usually suffers from superior vena cava syndrome (SVCS) or conduction disturbances.

Patient Concerns: We report a 36-year-old white male, born and living in Brazil, without comorbidities presented to hematologist thrombotic episodes even under anticoagulant therapy. On his first hematologic appointment, he had no active complaints except by the fullness after meals, and his physical examination presented remarkable collateral circulation in the chest.

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Background: Castleman's Disease is a rare B-cell lymphoproliferative disease. It is mostly benign and is characterized by non-neoplastic lymph node hypertrophy, associated with infection by human herpesvirus-8 in people with the human immunodeficiency virus/acquired immunodeficiency syndrome. Although the unicentric or localized form presents as benign, the multifocal form can manifest severe systemic symptoms.

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Objective: To establish clinical and laboratory data of individuals presenting chyluria in endemic areas.

Results: 75 individuals were studied. The majority were females with an average age of 45 years residing in the Metropolitan Region of Recife.

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Introduction: Pseudomonas aeruginosa, an important pathogen globally, presents several resistance mechanisms. This study aimed to investigate the presence of bla GES in clinical isolates of Pseudomonas aeruginosa obtained from various clinical specimens from patients admitted to three different hospitals in Recife, Brazil. The Guiana extended spectrum beta-lactamase (GES) enzymes are responsible for conferring broad spectrum resistance to beta-lactam drugs, including the carbapenems.

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