Publications by authors named "Lucas Pires"

Introduction: Sleep and mood disorders are common in hemodialysis, but the effect of light therapy remains unknown in this population.

Methods: We conducted a randomized, controlled, open-label pilot trial comparing two group of either 30 minutes of light therapy three times a week, or no exposure. The primary endpoint was change in sleep quality (PSQI) after five weeks of light therapy, with change in mood (DASS-21) as a secondary endpoint.

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  • Pulmonary hypertension (PH) complicates mitral stenosis (MS), and this study investigates the role of pulmonary vascular resistance (PVR) and right atrial pressure (RAP) in predicting outcomes for patients with rheumatic MS undergoing percutaneous mitral balloon valvuloplasty (PMBV).
  • The study included 58 patients, dividing them based on PVR levels, and assessed outcomes like death and the need for further interventions during follow-up.
  • Results indicated that RAP was a significant independent predictor of adverse outcomes, while PVR did not demonstrate the expected prognostic significance, suggesting that RAP is more critical in monitoring these patients.
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Propolis is a natural resinous mixture produced by honeybees with numerous biological activities. Considering the recently reported potential of propolis as an adjuvant in COVID-19 treatment, a methodology for the fractionation of the hexane extract of Brazilian green propolis (HEGP) was developed for the obtention of prenylated biomarkers by countercurrent chromatography. The inhibition of the interaction between the receptor binding domain (RBD) of spike and ACE2 receptor was evaluated by the Lumitᵀᴹ immunoassay.

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Objective: to report the first case series of Brazilian children diagnosed with Kleefstra syndrome, present a possible phenotype expansion to the syndrome and to raise physicians' awareness for this rare disease.

Results: seven patients with confirmed KS were evaluated, including 5 males and 2 females. Abnormal prenatal findings were observed in 4 patients.

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  • The study aimed to evaluate how well cefazolin compares to cloxacillin for treating infective endocarditis caused by methicillin-sensitive Staphylococci (MSS).
  • Data were collected from patients treated in six French hospitals between 2014 and 2020, measuring treatment failure based on a variety of outcomes like death and relapse within 90 days.
  • Results showed no significant differences in treatment effectiveness or safety between the two antibiotics, indicating that cefazolin is similarly effective as cloxacillin for MSS endocarditis.
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  • The study investigates the prevalence of the os trigonum, a small bone that can cause ankle issues, particularly posterior ankle impingement syndrome.
  • A comprehensive meta-analysis was conducted using data from 249 papers, narrowing down to 18 studies with a total of 17,626 ankles; it found a pooled prevalence of 10.3% for the os trigonum.
  • The findings indicate that while the os trigonum is quite common, diagnosis may vary depending on the type of study conducted, which can be helpful for clinicians dealing with related ankle conditions.
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Background: Mitral valve diseases are a common medical condition, and surgery is the most used therapeutic approach. The need for less invasive interventions led to the development of transcatheter valve implantation in high-risk patients. However, the treatment to the dysfunctions of these prosthetic valves is still uncertain, and the yield and safety of repeated transcatheter valve implantations remain unclear.

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In primary care, urinary tract infections (UTIs) account for the majority of antibiotic prescriptions. Comments from microbiologists on interpreting the antimicrobial susceptibility testing (AST) profile for urinalysis were made to improve the prescription of antibiotics. We aimed to explore the added value of these comments on the quality of antibiotic prescribing by a superior double-blind digital randomized case-vignette trial among French general practitioners (GPs).

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Introduction And Hypothesis: Collagen is a protein that confers robustness and resilience to several tissues. In the female reproductive system, collagen plays a critical role in maintaining the health and function of the vaginal walls. Aging leads to collagen reduction, which may cause vaginal dryness, irritation, and prolapse.

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Introduction And Importance: Osteochondrosis is a disease described in several bones of the human body. It is a condition that can lead to pain and antalgic gait, although it can also be asymptomatic. The present work aims to report an incidental finding of osteochondrosis that afflicted the medial cuneiform bone.

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Aims: Left ventricular remodelling occurs during the chronic course of aortic regurgitation (AR) and aortic stenosis (AS), leading to myocardial hypertrophy and fibrosis. Several studies have shown that extracellular volume fraction (ECV) and indexed extracellular volume (iECV) are important surrogate markers of diffuse myocardial fibrosis (MF). Postoperative data on these cardiovascular magnetic resonance (CMR) extracellular expansion parameters for either AS or AR are scarce.

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Objective Of The Study: The present work aims to observe the clitoris' extracellular matrix in young and old women with a scanning electron microscope.

Materials And Methods: After approval of the local research ethics committee, samples of the clitoris body were obtained from cadavers of women between 20 and 40 old (G1) and from cadavers over the age of 60 (G2). The samples were decellularized with NaOH to maintain the extracellular matrix framework, submitted to silver sputter coating, and observed under a scanning electron microscope.

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Recent studies suggest that transcript isoforms significantly overlap (approximately 60%) between brain tissue and Epstein-Barr virus-transformed lymphoblastoid cell lines (LCLs). Interestingly, 14 cohesion-related genes with variants that cause Cornelia de Lange Syndrome (CdLS) are highly expressed in the brain and LCLs. In this context, we first performed RNA sequencing of LCLs from 22 solved (with pathogenic variants) and 19 unsolved (with no confirmed variants) CdLS cases.

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Introduction: The clitoris is partially responsible for sexual arousal. The integrity of the extracellular matrix is essential for clitoral erection. Sexual dysfunction is a phenomenon associated with age.

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Background: Williams-Beuren syndrome is a multisystemic disorder caused by a microdeletion of the 7q11.23 region. Although familial cases with autosomal dominant inheritance have been reported, the vast majority are sporadic.

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The anterior vaginal wall is subject to many diseases, such as pelvic organ prolapse. The pathophysiology of this illness is multifactorial, and as such, structural components of the vagina are involved. Furthermore, it is more prevalent in older women.

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The extracellular matrix (ECM) of the fallopian tubes is subject to several changes due to hormonal influences and aging. However, there is a lack of studies regarding its arrangement in older women. We aimed to analyze the organization of ECMcomponents, including collagen and elastic fibers, in the fallopian tube's ampulla from young and old women by means of scanning electron microscopical and stereological methods.

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Congenital limb deficiency (CLD), one of the most common congenital anomalies, is characterized by hypoplasia/aplasia of one or more limb bones and can be isolated or syndromic. The etiology in CLD is heterogeneous, including environmental and genetic factors. A fraction remains with no etiological factor identified.

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Background: Heyde's syndrome is the association of severe aortic stenosis with episodes of gastrointestinal bleeding due to angiodysplastic lesion. Little is known about the factors associated with new episodes of bleeding and long-term outcomes. Furthermore, most data are restricted to case reports and small case series.

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Heart failure occurs in ~10% of patients with acute rheumatic fever (RF), and several studies have shown that cardiac decompensation in RF results primarily from valvular disease and is not due to primary myocarditis. However, the literature on this topic is scarce, and a recent case series has shown that recurrent RF can cause ventricular dysfunction even in the absence of valvular heart disease. The present study evaluated the clinical, laboratory and imaging characteristics of 25 consecutive patients with a clinical diagnosis of myocarditis confirmed by 18F-FDG PET/CT or gallium-67 cardiac scintigraphy and RF reactivation according to the revised Jones Criteria.

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Noonan syndrome (NS) is a Mendelian phenotype, member of a group of disorders sharing neurocardiofaciocutaneous involvement, known as RASopathies, caused by germline variants in genes coding for components of the RAS/MAPK signaling pathway. Recently, a novel gene of the RAS family (MRAS) was reported to be associated with NS in five children, all of them presenting, among the cardinal features of NS, the same cardiac finding, hypertrophic cardiomyopathy (HCM). We report on a 2-month-old infant boy also presenting this cardiac anomaly that evolved to a fatal outcome after a surgical myectomy.

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Congenital Zika virus (ZIKV) infection may present with a broad spectrum of clinical manifestations. Some sequelae, particularly neurodevelopmental problems, may have a later onset. We conducted a prospective cohort study of 799 high-risk pregnant women who were followed up until delivery.

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Recent outbreaks of Zika virus (ZIKV) infection highlight the urgent need to evaluate the efficacy of current public health measures to educate susceptible groups about how to prevent infection, modes of viral transmission, and consequences of infection. We performed a cross-sectional study in the city of Jundiaí, São-Paulo, from March 2016 to August 2017. In 315 high-risk pregnant women we evaluated the rate of ZIKV infection, knowledge of pathways of ZIKV transmission, and the use of protective measures.

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