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1.
Int J Biometeorol ; 68(2): 253-261, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38036706

RESUMO

This study evaluated relationships among reproductive parameters and the bioclimatic indices: temperature and humidity index (THI), equivalent temperature index (ETI), black globe temperature and humidity index (BGTHI), and thermal comfort index (TCI), during the first 45 days of spermatogenesis (SP-45) and during the 15 days of sperm transit through the epididymis (STP-15) that preceded the reproductive assessments (ReA). Such information is useful in determining the optimal breeding season in Northeast Brazil. Santa Inês rams (n = 25) underwent two ReA in three periods of the year (D-P = dry; R-P = rainy and RD-P = rainy/dry transition), and the bioclimatic indices were calculated at the corresponding SP-45 and STP-15 timepoints prior to each ReA. Sperm kinetic parameters in D-P were depressed compared to R-P and RD-P (P < 0.05). The index values had an antagonistic relationship with most parameters and regression analysis demonstrated that the BGTHI and the TCI had a negative association with the progressive motility, curvilinear, straight line, and average path velocities, and a positive association with slow sperm in the ejaculate in SP-45 and STP-15 phases (P < 0.01). Semen quality kinetics is affected throughout the year by the environment and it is apparent that it is impaired in D-P and better in R-P and RD-P seasons. The BGTHI and TCI measured in the sperm production phase classified the environment most coherently and presented better association with the behavior of sperm kinetics.


Assuntos
Análise do Sêmen , Sêmen , Masculino , Ovinos , Animais , Espermatozoides , Carneiro Doméstico , Reprodução , Estações do Ano , Motilidade dos Espermatozoides
2.
Surg Radiol Anat ; 2024 Oct 10.
Artigo em Inglês | MEDLINE | ID: mdl-39387879

RESUMO

OBJECTIVE: The present study describes a rare anatomical variation of the anterior jugular vein (AJV) and discusses its clinical relevance. METHODS: A head and neck specimen fixed in 10% formaldehyde from a 42-year-old female cadaver was submitted to angio technique with pre-vulcanized latex and water-soluble ink. During a routine dissection for the discipline of topographic anatomy, the presence of an arcuate AJV was detected in the anterior triangle of the neck. RESULTS: An arcuate AJV was formed by the confluence of the submental and facial veins in the left submandibular region, which presented a complex network of anastomoses superficially to the left submandibular gland. After its origin, this vessel curved to the right at the level of the laryngeal prominence and followed the medial border of the right sternohyoid muscle to flow into the right AJV. In this topography, the arcuate AJV was located between the sternocleidomastoid muscle's anterior margin and the thyroid gland's right lobe. The presence of anastomoses between the two AJVs communicating the submandibular triangles was not detected. CONCLUSION: The arcuate AJV is a relevant anatomical variant in the superficial venous drainage of the neck that should be known by head and neck surgeons and radiologists to avoid surgical iatrogenic events.

3.
Photochem Photobiol Sci ; 22(1): 21-32, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36036336

RESUMO

Several inflammatory molecules have been suggested as biomarkers of age-related macular degeneration (AMD). Galectin-3 (Gal-3), which has been shown to have a protective role in corneal injury by promoting epithelial cells adhesion and migration to the extracellular matrix, is also highly expressed in the retinal pigment epithelium (RPE) of patients with AMD. This study evaluated the role of Gal-3 in an in vitro model of UVA-induced RPE damage, as a proof-of-concept. ARPE-19 cells (human RPE cell line), were incubated with Gal-3 at 0.5-2.5 µg/mL concentrations prior to UVA irradiation for 15, 30, and 45 min, which resulted in accumulated doses of 2.5, 5, and 7.5 J/cm2, respectively. After 24 h incubation, MTT and LDH assays, immunofluorescence, and ELISA were performed. UVA irradiation for 15, 30, and 45 min proved to reduce viability in 83%, 46%, and 11%, respectively. Based on the latter results, we chose the intermediate dose (5-J/cm2) for further analysis. Pretreatment with Gal-3 at concentrations > 1.5 µg/mL showed to increase the viability of UVA-irradiated cells (~ 75%) compared to untreated cells (64%). Increased levels of cleaved caspase 3, a marker of cell death, were detected in the ARPE cells after UVA irradiation with or without addition of exogenous Gal-3. The inhibitory effect of Gal-3 on UVA-induced cell damage was characterized by decreased ROS levels and increased p38 activation, as detected by fluorescence analysis. In conclusion, our study suggests a photoprotective effect of Gal-3 on RPE by reducing oxidative stress and increasing p38 activation.


Assuntos
Galectina 3 , Estresse Oxidativo , Humanos , Galectina 3/metabolismo , Galectina 3/farmacologia , Morte Celular , Epitélio Pigmentado da Retina/metabolismo , Células Epiteliais/metabolismo , Pigmentos da Retina/metabolismo , Pigmentos da Retina/farmacologia , Espécies Reativas de Oxigênio/metabolismo
4.
J Contemp Dent Pract ; 22(1): 101-104, 2021 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-34002718

RESUMO

AIM: This clinical technique report aimed to describe a composite resin repair technique performed in an implant-supported prosthesis. BACKGROUND: Veneering ceramic fracture or chipping is one of the most frequent clinical failures in dentistry. Therefore, the use of less time- and cost-consuming ceramic repair techniques is helpful in clinical practice. TECHNIQUE: Briefly, to treat the ceramic surface, the glaze was removed at the margins of the fracture area, then, air-abrasion and acid-etching were performed. To promote chemical adhesion, a silane coupling agent and adhesive system were applied over the ceramic surface, and the composite resin was applied by incremental technique. Finally, the polish was performed. CONCLUSION: In conclusion, the applied composite resin repair of feldspathic porcelain chipping in implant-supported prosthesis was a simple, easy, affordable, and minimally invasive treatment. CLINICAL SIGNIFICANCE: The causes of veneer materials failures in metal-ceramic crowns are considered a challenge for the dentist and a problem that displeases patients. Repairs are indicated to prevent cracks from spreading and to prevent the accumulation of biofilm on the damaged surface. Therefore, different repair protocols have been proposed to enhance the esthetic, functionality, and longevity of the implant-supported prosthesis. Additionally, the success of the clinical cases depends on the capability to identify ceramic failures and the ability to indicate/perform the correct repair protocol. Since the described repair technique of the fractured screw-retained implant-supported prosthesis was a simple, easy, affordable, and minimally invasive treatment, with excellent esthetic and masticatory results, it represents an interesting clinical option.


Assuntos
Implantes Dentários , Porcelana Dentária , Parafusos Ósseos , Coroas , Prótese Dentária Fixada por Implante , Falha de Restauração Dentária , Estética Dentária , Humanos , Zircônio
5.
Mem Inst Oswaldo Cruz ; 115: e200200, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32667461

RESUMO

Corona virus disease (COVID-19) presents a serious threat to global health. A historical timeline of early molecular diagnostics from government alert (January 22) (D) was presented. After in silico analysis, Brazilian Army Institute of Biology (IBEx-RJ) tested samples in house using real-time reverse transcriptase polymerase chain reaction (RT-PCR) (fast mode) based on Centers for Disease Control and Prevention (CDC) recommendations. First cases from Brazil, Rio de Janeiro, IBEx, and diagnosis team were reported in D36, D44, D66, and D74 respectively. Therefore, after 1300 tests, we recommend N1/N2 primer sets (CDC) for preliminary and Charité protocol confirmation in case of positive results. Moreover, every professional should be tested before starting work, in addition to weekly tests for everyone involved.


Assuntos
Betacoronavirus/genética , Infecções por Coronavirus/diagnóstico , Pneumonia Viral/diagnóstico , Betacoronavirus/isolamento & purificação , Brasil/epidemiologia , COVID-19 , Infecções por Coronavirus/epidemiologia , Humanos , Instalações Militares , Pandemias , Pneumonia Viral/epidemiologia , Reação em Cadeia da Polimerase Via Transcriptase Reversa , SARS-CoV-2
6.
Cytokine ; 106: 95-100, 2018 06.
Artigo em Inglês | MEDLINE | ID: mdl-29108795

RESUMO

BACKGROUND: The present study was designed to compare inflammatory and metabolic responses according to severity of airflow among patients with COPD and to verify the relationship between pulmonary function, body composition, metabolic and inflammatory profile. METHODS: Fifty-one patients with mild to very severe COPD were recruited and divided according lung function in Mild-moderate (GOLD 1-2) n= 21; Severe (GOLD 3) n=25 and Very severe (GOLD 4) n=5. Patients were submitted to assessments of lung function (spirometry), functional exercise capacity (6-min walk test), body composition (Octopolar bioelectrical impedance), metabolic profile (glucose, triglycerides, total cholesterol, HDL-cholesterol and albumin (colorimetric assay)) and inflammatory profile (cytokines: IL-6, IL-10, TNF-α and IL-15 (ELISA)). RESULTS: We found that patients in GOLD 3 group had lower levels of IL-10, triglycerides, visceral fat area, and higher IL-6 and IL-6/IL-10 ratio when compared to GOLD 1-2 patients. Additionally, GOLD 1-2 group presented negative correlation between TNF-α and HDL cholesterol (p= .01) and positive correlation between IL-15 and FEV1/FVC (p=.01), while GOLD 3 group showed positive correlation between IL-6 and IL-10 (p< .01), IL-6 and total cholesterol (p<.01) and negative correlation between IL-10 and HDL-cholesterol (p=.01). CONCLUSION: Our findings suggest that patients with severe COPD can exhibit compromised "inflammatory status", characterized by higher IL6, IL-6/IL-10 ratio and lower IL-10 concentration. Furthermore, IL-10 seems to be an interesting cytokine to be investigated in this kind of patients.


Assuntos
Interleucina-10/sangue , Doença Pulmonar Obstrutiva Crônica/sangue , Doença Pulmonar Obstrutiva Crônica/patologia , Índice de Gravidade de Doença , Idoso , Biomarcadores/sangue , Feminino , Humanos , Mediadores da Inflamação/metabolismo , Masculino , Pessoa de Meia-Idade , Doença Pulmonar Obstrutiva Crônica/fisiopatologia
7.
AIDS Behav ; 19(4): 679-83, 2015 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-25210003

RESUMO

This quantitative cross-sectional study of HIV/AIDS patients (N = 1,520) in São Paulo evaluated factors associated with a delay in seeking care. Analysis included Chi square tests and multiple logistic regression. Care was sought at the AIDS stage in 56.7 % (861) of patients, and 48.2 % (732) had a CD4 count ≤350 cells/mm(3); 9 % (136) delayed seeking care for 6 months or more after a positive HIV test. Women sought medical care earlier after testing (odds ratio (OR) = 1.79; P = 0.0227), but were already symptomatic (OR = 1.90; P = 0.0004). Partners of seropositive patients (OR = 3.92; P = 0.0000) also sought care symptomatic. Reasons for late presentation for care were non-acceptance of HIV diagnosis (OR = 24.56; P = 0.0000), treatment refusal (OR = 55.34; P = 0.0000), and physical disability (OR = 1.90; P = 0.0414). Necessary strategies for HIV treatment and prevention include improved education and access to services.


Assuntos
Síndrome da Imunodeficiência Adquirida/tratamento farmacológico , Terapia Antirretroviral de Alta Atividade , Infecções por HIV/tratamento farmacológico , Aceitação pelo Paciente de Cuidados de Saúde/estatística & dados numéricos , Síndrome da Imunodeficiência Adquirida/diagnóstico , Adulto , Idoso , Idoso de 80 Anos ou mais , Brasil , Contagem de Linfócito CD4 , Estudos Transversais , Feminino , Infecções por HIV/diagnóstico , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Fatores Sexuais , Fatores de Tempo , Recusa do Paciente ao Tratamento/estatística & dados numéricos , Adulto Jovem
8.
Alcohol Alcohol ; 50(5): 602-7, 2015 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-25964242

RESUMO

AIMS: We assessed the impact of the 2010 revisions to Brazil's self-regulatory alcohol marketing code using expert and adolescent raters. METHODS: Five popular TV beer ads were selected. Ads were rated based on the 2010 Brazilian self-regulatory marketing code. The expert group (N = 31) represented health-related professions; the adolescent group (N = 110) were public high school students. RESULTS: At least 1 ad violated 11 of 17 guidelines included in the study. Ratings by experts and adolescents were similar. Both found violations in all sections of the self-regulatory code, but significant group differences were seen in applying the section that prohibits the promotion of excessive alcohol consumption, with experts identifying more violations than adolescents. CONCLUSION: Beer ads in the sample systematically violated the self-regulatory standards for alcohol advertising in Brazil according to both experts and youth. Public policies for more effective restrictions and prohibitions in alcohol ads should be considered.


Assuntos
Comportamento do Adolescente , Publicidade/normas , Cerveja , Prova Pericial/normas , Fidelidade a Diretrizes/normas , Percepção , Adolescente , Adulto , Publicidade/métodos , Brasil/epidemiologia , Prova Pericial/métodos , Feminino , Humanos , Masculino , Inquéritos e Questionários , Televisão/normas
9.
Heart Lung ; 65: 54-58, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38402757

RESUMO

BACKGROUND: While patients with heart failure (HF) with reduced left ventricular ejection fraction (HFrEF) constitutes a global health crisis the incidence, prevalence and prognosis of the disease may differ depending on the continent and country. OBJECTIVE: To profile, analyze and compare cardiopulmonary exercise testing (CPET) data of patients with HFrEF between Italian and Brazilian cohorts. METHODS: In this observational study, a total of 630 patients with clinical and functional diagnosis of HFrEF (315 patients from Brazil and 315 patients from Italy) performed CPET. RESULTS: Although Brazilian patients were slightly younger (Brazil 60±10 vs Italy 64±11 p<0.001) with a better peak oxygen consumption (V̇O2), circulatory power and left ventricular ejection fraction (LVEF) (p<0.01), ventilatory inefficiency and oscillation ventilation was higher when compared to the Italian cohort. When stratifying patients with LVEF≤30 % and age≥60 years, Brazilian patients presented worse ventilatory efficiency, and lower peak V̇O2 compared to the Italian cohort. CONCLUSION: Patients with HFrEF from Brazil exhibited higher ventilatory inefficiency and a greater prevalence of oscillatory ventilation during CPET compared to patients with the same diagnosis from Italy.


Assuntos
Insuficiência Cardíaca , Humanos , Pessoa de Meia-Idade , Brasil/epidemiologia , Teste de Esforço , Insuficiência Cardíaca/diagnóstico , Insuficiência Cardíaca/epidemiologia , Consumo de Oxigênio , Prognóstico , Volume Sistólico , Função Ventricular Esquerda , Idoso
10.
Sci Rep ; 14(1): 12360, 2024 05 29.
Artigo em Inglês | MEDLINE | ID: mdl-38811574

RESUMO

Impaired lung function, respiratory muscle weakness and exercise intolerance are present in COPD and contribute to poor prognosis. However, the contribution of the combination of these manifestations to define prognosis in COPD is still unknown. This study aimed to define cut-off points for both inspiratory and expiratory muscle strength (MIP and MEP, respectively) for mortality prediction over 42-months in patients with COPD, and to investigate its combination with other noninvasive established prognostic measures (FEV1, V̇O2peak and 6MWD) to improve risk identification. Patients with COPD performed pulmonary function, respiratory muscle strength, six-minute walk and cardiopulmonary exercise tests, and were followed over 42 months to analyze all-cause mortality. A total of 79 patients were included. The sample was mostly (91.1%) comprised of severe (n = 37) and very severe (n = 34) COPD, and 43 (54%) patients died during the follow-up period. Cut-points of ≤ 55 and ≤ 80 cmH2O for MIP and MEP, respectively, were associated with increased risk of death (log-rank p = 0.0001 for both MIP and MEP) in 42 months. Furthermore, MIP and MEP substantially improved the mortality risk assessment when combined with FEV1 (log-ranks p = 0.006 for MIP and p < 0.001 for MEP), V̇O2peak (log-rank: p < 0.001 for both MIP and MEP) and 6MWD (log-ranks: p = 0.005 for MIP; p = 0.015 for MEP). Thus, patients severely affected by COPD presenting MIP ≤ 55 and/or MEP ≤ 80 cmH2O are at increased risk of mortality. Furthermore, MIP and MEP substantially improve the mortality risk assessment when combined with FEV1, V̇O2peak and 6MWD in patients with COPD.


Assuntos
Força Muscular , Doença Pulmonar Obstrutiva Crônica , Músculos Respiratórios , Humanos , Doença Pulmonar Obstrutiva Crônica/fisiopatologia , Doença Pulmonar Obstrutiva Crônica/mortalidade , Doença Pulmonar Obstrutiva Crônica/diagnóstico , Masculino , Feminino , Idoso , Prognóstico , Músculos Respiratórios/fisiopatologia , Pessoa de Meia-Idade , Testes de Função Respiratória , Teste de Esforço
11.
Children (Basel) ; 11(6)2024 Jun 15.
Artigo em Inglês | MEDLINE | ID: mdl-38929312

RESUMO

BACKGROUND: Pediatric regional anesthesia has been driven by the gradual rise in the adoption of opioid-sparing strategies and the growing concern over the possible adverse effects of general anesthetics on neurodevelopment. Nonetheless, performing regional anesthesia studies in a pediatric population is challenging and accounts for the scarce evidence. This study aimed to review the scientific foundation of studies in cadavers to assess regional anesthesia techniques in children. METHODS: We searched the following databases MEDLINE, EMBASE, and Web of Science. We included anatomical cadaver studies assessing peripheral nerve blocks in children. The core data collected from studies were included in tables and comprised block type, block evaluation, results, and conclusion. RESULTS: The search identified 2409 studies, of which, 16 were anatomical studies on the pediatric population. The techniques evaluated were the erector spinae plane block, ilioinguinal/iliohypogastric nerve block, sciatic nerve block, maxillary nerve block, paravertebral block, femoral nerve block, radial nerve block, greater occipital nerve block, infraclavicular brachial plexus block, and infraorbital nerve block. CONCLUSION: Regional anesthesia techniques are commonly performed in children, but the lack of anatomical studies may result in reservations regarding the dispersion and absorption of local anesthetics. Further anatomical research on pediatric regional anesthesia may guide the practice.

12.
Front Immunol ; 15: 1387566, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39253088

RESUMO

Introduction: G-protein coupled receptors (GPCRs) expressed on neutrophils regulate their mobilization from the bone marrow into the blood, their half-live in the circulation, and their pro- and anti-inflammatory activities during inflammation. Chronic kidney disease (CKD) is associated with systemic inflammatory responses, and neutrophilia is a hallmark of CKD onset and progression. Nonetheless, the role of neutrophils in CKD is currently unclear. Methods: Blood and renal tissue were collected from non-dialysis CKD (grade 3 - 5) patients to evaluate GPCR neutrophil expressions and functions in CKD development. Results: CKD patients presented a higher blood neutrophil-to-lymphocyte ratio (NLR), which was inversely correlated with the glomerular filtration rate (eGFR). A higher frequency of neutrophils expressing the senescent GPCR receptor (CXCR4) and activation markers (CD18+CD11b+CD62L+) was detected in CKD patients. Moreover, CKD neutrophils expressed higher amounts of GPCR formyl peptide receptors (FPR) 1 and 2, known as neutrophil pro- and anti-inflammatory receptors, respectively. Cytoskeletal organization, migration, and production of reactive oxygen species (ROS) by CKD neutrophils were impaired in response to the FPR1 agonist (fMLP), despite the higher expression of FPR1. In addition, CKD neutrophils presented enhanced intracellular, but reduced membrane expression of the protein Annexin A1 (AnxA1), and an impaired ability to secrete it into the extracellular compartment. Secreted and phosphorylated AnxA1 is a recognized ligand of FPR2, pivotal in anti-inflammatory and efferocytosis effects. CKD renal tissue presented a low number of neutrophils, which were AnxA1+. Conclusion: Together, these data highlight that CKD neutrophils overexpress GPCRs, which may contribute to an unbalanced aging process in the circulation, migration into inflamed tissues, and efferocytosis.


Assuntos
Neutrófilos , Receptores de Formil Peptídeo , Insuficiência Renal Crônica , Humanos , Neutrófilos/imunologia , Neutrófilos/metabolismo , Receptores de Formil Peptídeo/metabolismo , Insuficiência Renal Crônica/metabolismo , Insuficiência Renal Crônica/imunologia , Masculino , Feminino , Pessoa de Meia-Idade , Idoso , N-Formilmetionina Leucil-Fenilalanina/farmacologia , Receptores Acoplados a Proteínas G/metabolismo , Espécies Reativas de Oxigênio/metabolismo , Receptores de Lipoxinas/metabolismo , Receptores CXCR4/metabolismo
13.
Food Chem ; 453: 139688, 2024 Sep 30.
Artigo em Inglês | MEDLINE | ID: mdl-38761722

RESUMO

The aim of this study was to evaluate the effect of freezing rates using direct (LF: Liquid nitrogen) and indirect (RF: Cryogenic refrigerator and UF: ultra-freezer) methods at temperatures of (-20, -80, and - 196 °C) on the enzymatic susceptibility with α-amylase for microparticles. In vitro digestibility parameters and technological properties were also analyzed. Lower rates resulted in larger ice crystals, damaging the starch structure. Hydrolysis was more pronounced at slower rates RF: 0.07 °C/min and UF: 0.14 °C/min, yielding maximum values of RDS: 37.63% and SDS: 59.32% for RF. Type A crystallinity remained unchanged, with only a noted increase in crystallinity of up to 6.50% for FR. Starch pastes were classified as pseudoplastic, with RF exhibiting superior textural parameters and apparent viscosity. (RF: 7.18 J g-1 and UF: 7.34 J g-1) also showed lower values of gelatinization enthalpy. Freezing techniques were viable in facilitating the diffusion of α-amylase and reducing RS by up to 81%.


Assuntos
Digestão , Congelamento , Amido , alfa-Amilases , Amido/química , Amido/metabolismo , alfa-Amilases/química , alfa-Amilases/metabolismo , Hidrólise , Viscosidade , Tamanho da Partícula
14.
Food Res Int ; 177: 113877, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38225140

RESUMO

This study investigated the physical modifications by high hydrostatic pressure (HHP) at 600 MPa for 30 min/30 °C, annealing (AN) at 50 °C/24 h and the combination of both (HHP + AN and AN + HHP) applied to yellow bean starch to verify changes in morphology, X-ray diffraction, molecular order, thermal properties and pasting properties of native (NS) and modified starches. Morphological analysis showed loss of sphericity and increase in diameter with the appearance of pores on the surface after application of treatments. The AN starch showed lower values of syneresis, degree of double helix (DD), order (DO), and viscosity of the paste obtained by RVA. It exhibited a Vh-type classification with the appearance of the amylose-lipid complex. However, the gelatinization temperatures, as well as the enthalpy of gelatinization, were significantly higher. On the other hand, the starch treated with HHP showed a higher Setback (SB) value. The greatest modifications were found for the starches subjected to the combined treatments (AN + HHP) and (HHP + AN), where the order of the treatments was significant for the morpho-structural changes of yellow bean starch. According to the micrographs, the surface aspect was altered, with AN + HHP showing greater irregularities and flat yet irregular faces, as well as a larger granule diameter (147.05). The X-ray diffractogram showed a reduction in crystallinity from 28.14 % (NS) to 18.09 % (AN + HHP) and classified the starch as type "A". The double modification (HHP + AN and AN + HHP) reduced the gelatinization temperature and the enthalpy of gelatinization but had no effect on the bands of the FT-IR spectrum. There was only a reduction in the degree of order and the double helix. Finally, the treatment with AN + HHP is more effective as the gelatinization with AN facilitates the application of HHP. Both methods used are classified as physical (thermal and non-thermal), aiming to minimize environmental impacts and achieve faster and safer morpho-structural modification without leaving chemical residues in the products.


Assuntos
Amilose , Amido , Amido/química , Pressão Hidrostática , Espectroscopia de Infravermelho com Transformada de Fourier , Amilose/química , Temperatura
15.
Toxicology ; 504: 153786, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38522819

RESUMO

This study evaluated the effect of pharmacological inhibition of galectin 3 (Gal-3) with modified citrus pectin (MCP) on the heart and kidney in a model of cisplatin-induced acute toxicity. Male Wistar rats were divided into four groups (n = 6/group): SHAM, which received sterile saline intraperitoneally (i.p.) for three days; CIS, which received cisplatin i.p. (10 mg/kg/day) for three days; MCP, which received MCP orally (100 mg/kg/day) for seven days, followed by sterile saline i.p. for three days; MCP+CIS, which received MCP orally for seven days followed by cisplatin i.p. for three days. The blood, heart, and kidneys were collected six hours after the last treatment. MCP treatment did not change Gal-3 protein levels in the blood and heart, but it did reduce them in the kidneys of the MCP groups compared to the SHAM group. While no morphological changes were evident in the cardiac tissue, increased malondialdehyde (MDA) levels and deregulation of the mitochondrial oxidative phosphorylation system were observed in the heart homogenates of the MCP+CIS group. Cisplatin administration caused acute tubular degeneration in the kidneys; the MCP+CIS group also showed increased MDA levels. In conclusion, MCP therapy in the acute model of cisplatin-induced toxicity increases oxidative stress in cardiac and renal tissues. Further investigations are needed to determine the beneficial and harmful roles of Gal-3 in the cardiorenal system since it can act differently in acute and chronic diseases/conditions.


Assuntos
Antineoplásicos , Cisplatino , Galectina 3 , Rim , Pectinas , Ratos Wistar , Animais , Cisplatino/toxicidade , Pectinas/farmacologia , Masculino , Galectina 3/metabolismo , Galectina 3/antagonistas & inibidores , Rim/efeitos dos fármacos , Rim/metabolismo , Rim/patologia , Antineoplásicos/toxicidade , Ratos , Cardiotoxicidade , Miocárdio/metabolismo , Miocárdio/patologia , Malondialdeído/metabolismo , Coração/efeitos dos fármacos , Estresse Oxidativo/efeitos dos fármacos , Galectinas/metabolismo , Nefropatias/induzido quimicamente , Nefropatias/patologia , Nefropatias/prevenção & controle
16.
Respir Med ; 217: 107332, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37356636

RESUMO

BACKGROUND: Exercise oscillatory ventilation (EOV) is considered an important variable for predicting poor prognosis in patients with heart failure (HF) with reduced left ventricular ejection fraction (HFrEF). However, there are no studies evaluating EOV presence in the coexistence chronic obstructive pulmonary disease (COPD) and HFrEF. AIMS: I) To compare the clinical characteristics of participants with coexisting HFrEF-COPD with and without EOV during cardiopulmonary exercise testing (CPET); and II) to identify the impact of EOV on mortality during follow-up for 35 months. METHODS: 50 stable HFrEF-COPD (EF<50%) participants underwent CPET and were followed for 35 months. The parametric Student's t-test, chi-square tests, linear regression model and Kaplan-Meier analysis were applied. RESULTS: We identified 13 (26%) participants with EOV and 37 (74%) without EOV (N-EOV) during exercise. The EOV group had worse cardiac function (LVEF: 30 ± 6% vs. N-EOV 40 ± 9%, p = 0.007), worse pulmonary function (FEV1: 1.04 ± 0.7 L vs. N-EOV 1.88 ± 0.7 L, p = 0.007), a higher mortality rate [7 (54%) vs. N-EOV 8 (27%), p = 0.02], higher minute ventilation/carbon dioxide production (V̇˙E/ V̇˙ CO2) slope (42 ± 7 vs. N-EOV 36 ± 8, p = 0.04), reduced peak ventilation (L/min) (26.2 ± 16.7 vs. N-EOV 40.3 ± 16.4, p = 0.01) and peak oxygen uptake (mlO2 kg-1 min-1) (11.0 ± 4.0 vs. N-EOV 13.5 ± 3.4 ml●kg-1●min-1, p = 0.04) when compared with N-EOV group. We found that EOV group had a higher risk of mortality during follow-up (long-rank p = 0.001) than patients with N-EOV group. CONCLUSION: The presence of EOV is associated with greater severity of coexisting HFrEF and COPD and a reduced prognosis. Assessment of EOV in participants with coexisting HFrEF-COPD, as a biomarker for both clinical status and prognosis may therefore be warranted.

17.
J Voice ; 37(1): 144.e15-144.e22, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-33250356

RESUMO

OBJECTIVE: To investigate the self-perception of vocal fatigue symptoms and musculoskeletal pain in home office workers before and during the coronavirus disease (COVID-19) pandemic. MATERIALS AND METHODS: A total of 424 individuals participated in this cross-sectional, observational, and descriptive study; they were stratified into the experimental group (EG), consisting of 235 individuals working from home office during the COVID-19 pandemic; and the control group (CG), with 189 individuals who continued to work in person during this period. All participants answered the vocal fatigue index and the musculoskeletal pain investigation questionnaires. The data were analyzed in a descriptive and inferential manner. RESULTS: Participants in the EG reported more vocal fatigue symptoms and musculoskeletal pain than those in the CG before the pandemic. However, during the pandemic, the EG presented a higher frequency of pain in the posterior of the neck, shoulder, upper back, and temporal and masseter muscles, while the CG presented a higher frequency of pain in the larynx. With regard to vocal fatigue, during the pandemic, EG had an increase in scores to factors such as tiredness and voice impairment, avoidance of voice use, and total scores. No such differences were noted in the CG. CONCLUSION: Workers who migrated to home offices during the COVID-19 pandemic are at risk of developing vocal disorders.


Assuntos
COVID-19 , Dor Musculoesquelética , Distúrbios da Voz , Humanos , Dor Musculoesquelética/diagnóstico , Dor Musculoesquelética/epidemiologia , Pandemias , Estudos Transversais , COVID-19/epidemiologia , Distúrbios da Voz/diagnóstico , Distúrbios da Voz/epidemiologia , Distúrbios da Voz/etiologia , Autoimagem , Inquéritos e Questionários
18.
Mult Scler Relat Disord ; 79: 105049, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37864991

RESUMO

BACKGROUND: Multiple sclerosis (MS) is an autoimmune neurodegenerative disease. Nutritional status influences the course of the disease, however, its relationship with sarcopenia needs further investigation. The aim of the study was to identify patients with sarcopenia and assess its association with nutritional status and the clinical course of the disease. METHODS: The study assessed 110 patients submitted to evaluation of sociodemographic characteristics, level of physical activity, nutritional status, and presence of sarcopenia. The clinical course of the disease, age at onset, disease duration, disease-modifying therapy, and expanded scale of disability status (EDSS) were investigated. RESULTS: Mean age was 37.17 (SD = 10.60) years, disease duration was 6.29 years (SD = 4.65), with a predominance of female gender (80.90 %), relapsing-remitting clinical form (RRMS) (89.10 %) and mild level of disability (EDSS median = 1.92). The group had excess weight (53.6 %) according to body mass index (BMI) and abdominal fat accumulation measured by waist circumference (WC) (53.6 %). High percentage of fat mass ( % FM) was observed in 54.5 % and 38.2 % of the patients according to bioimpedance (BIA) and ultrasound (US), respectively. It was observed that 15.5 % were at risk for sarcopenia, which was associated with excess weight, and high % FM (p<0.05). CONCLUSION: These findings highlight the importance of including nutritional status indicators, and sarcopenia assessment in the care of patients with MS.


Assuntos
Esclerose Múltipla Recidivante-Remitente , Esclerose Múltipla , Doenças Neurodegenerativas , Sarcopenia , Humanos , Feminino , Adulto , Masculino , Esclerose Múltipla/complicações , Esclerose Múltipla/epidemiologia , Esclerose Múltipla/tratamento farmacológico , Sarcopenia/diagnóstico por imagem , Sarcopenia/epidemiologia , Sarcopenia/etiologia , Estado Nutricional , Progressão da Doença , Esclerose Múltipla Recidivante-Remitente/complicações , Esclerose Múltipla Recidivante-Remitente/epidemiologia , Esclerose Múltipla Recidivante-Remitente/tratamento farmacológico
19.
J Voice ; 2023 May 04.
Artigo em Inglês | MEDLINE | ID: mdl-37149394

RESUMO

OBJECTIVE: To map the evidence on vocal intervention in people over 18 years old. METHODS: A literature search was conducted using the following electronic databases: Cochrane Library, EMBASE, Latin American and Caribbean Literature on Health Sciences (LILACS), LIVIVO, Pubmed/Medline, Scopus, SpeechBITE, and Web of Science. Gray literature was also used as an information source through searches on Google Scholar, Open Grey, ProQuest Dissertation and Thesis, and the Brazilian digital library of theses and dissertations. Systematic reviews (SR) with a population of individuals over 18 years old were included. The included reviews addressed speech-language pathology interventions in the vocal area with reports of their respective outcome. The methodological quality of the included systematic reviews was analyzed using the AMSTAR II tool. Quantitative analysis was performed by frequency distribution, and qualitative research was analyzed through narrative synthesis. RESULTS: A total of 2,443 references were retrieved, among which 20 studies met the inclusion criteria. The included studies had critically low quality, lacking the use of population, intervention, comparison, and outcome (PICO) components. Among the included SRs, 40% were made in Brazil, 45% were published in the Journal of Voice, and 75% analyzed dysphonic patients. The most frequent intervention was voice therapy (direct therapy associated with indirect therapy approaches). Positive results were observed in most of the outcomes for all studies. CONCLUSION: Voice therapy was described as inducing positive effects for voice rehabilitation. However, due to the critically low quality of studies, the literature did not enable us to understand the best results for each intervention. Well-designed studies are necessary to clarify the relationship between the intervention goal and how the intervention was evaluated.

20.
Front Psychol ; 14: 1058417, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36733659

RESUMO

Introduction: The COVID-19 pandemic resulted in tremendous physical and psychological pressure on healthcare professionals, especially on those working in intensive care units (ICUs) and Emergency Departments (EDs). The present study intended to characterize the profile of these professionals which is associated with burnout and determine the potential predictors of such condition. Methods: A Prospective cohort study was carried out in a tertiary hospital between March 2020 and March 2021, in Salvador, Brazil. A standardized and validated version of the Oldenburg Burnout inventory (OLBI) was applied to assess risk of burnout together with data forms designed to collect information on sociodemographic characteristics and religious beliefs. ICU and ED healthcare professionals were evaluated during off-hours at two distinct periods of the COVID-19 pandemic, in 2020 and in 2021. Differences in the results obtained from each study participant between the timepoints were compared. A binary logistic regression analysis was performed to identify the predictors of burnout development independent of other confounding factors. Results: Seventy-seven healthcare professionals with a median age of 33 (interquartile range [IQR]: 31-37.5) years and predominantly female (72.7%; n = 56) were enrolled. There were 62 professionals at risk of developing burnout through the OLBI. Those had a median age of 33 (IQR: 31-37) and female predominance (71%, n = 44). Disengagement and burnout were the only features which frequencies significantly changed over time, with increasing detection at the latest timepoint. Alcohol consumption was found to be an important risk factor for burnout development [adjusted odds ratio (aOR): 10.8 (95% CI: 1.8-64.2)]. Importantly, working in the ICU [aOR: 0.04 (95%CI: 0.01-0.32)] and the habit of praying daily [aOR: 0.07 (95%CI: 0.01-0.41)] were characteristics linked to reduced odds of burnout. Discussion: Disengagement substantially increased during the COVID-19 pandemic in healthcare professionals. Alcohol consumption favors the onset of burnout whereas habit of praying daily and working in the ICU are protective against such outcome. Institutional policies aimed at minimizing etilism may positively impact mental health of these professionals.

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