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1.
Semina cienc. biol. saude ; 45(1): 13-26, jan./jun. 2024. ilus; tab.
Artigo em Português | LILACS | ID: biblio-1554872

RESUMO

Sífilis é uma infecção sexualmente transmissível (IST) que sinaliza a necessidade de efetivas políticas públicas devido ao aumento de casos na última década. Dessa forma, o objetivo do trabalho é descrever a incidência de sífilis no estado do Rio de Janeiro e no município de Seropédica. Métodos: foi realizado um estudo descritivo, com abordagem quantitativa. A coleta dos dados foi realizada por meio do Sistema de Informação de Agravos de Notificação (Sinan), referentes ao município de Seropédica e ao estado do Rio de Janeiro, no período de 2010 a 2022. Resultados: foram identificados 105.138, 79.609 e 42.819 casos de sífilis adquirida, em gestantes e congênita, respectivamente, no estado do Rio de Janeiro e 187, 140 e 79 casos de sífilis adquirida, em gestantes e congênita, respectivamente, no município de Seropédica. Foi observado uma incidência maior para sífilis adquirida entre homens em comparação com mulheres tanto no estado do Rio de Janeiro (62.719 versus 42.346) quanto no município de Seropédica (110 versus 77). Houve um aumento nas taxas de incidência de sífilis no estado do Rio de Janeiro e no município de Seropédica ao longo dos anos. Conclusão: a sífilis segue sendo uma doença com alta incidência no território do Rio de Janeiro. Nesse sentido, é importante elaborar estratégias em saúde pública mais efetivas às pessoas acometidas por tal infecção.


Syphilis is a sexually transmitted infection (STI) that signals the need for effective public policies due to the increase in cases in the last decade. Thus, the aim of this study is to describe the incidence of syphilis in the state of Rio de Janeiro and in the municipality of Seropédica. Methods: a descriptive study with a quantitative approach was carried out. Data collection was performed through the Sistema de Informação de Agravos de Notificação (Sinan), referring to the municipality of Seropédica and the state of Rio de Janeiro, from 2010 to 2022. Results: overall, 105.138, 79.609 and 42.819 cases of acquired syphilis, in pregnant women, and congenital syphilis, respectively, were identified in the state of Rio de Janeiro, and 187, 140, and 79 cases of acquired syphilis, in pregnant women, and congenital syphilis, respectively, were identified in the municipality of Seropédica. A higher incidence of acquired syphilis was observed among men compared to women both in the state of Rio de Janeiro (62.719 versus 42.346) and in the municipality of Seropédica (110 versus 77). There has been an increase in the incidence rates of syphilis in the state of Rio de Janeiro and the municipality of Seropédica over the years. Conclusion: syphilis continues to be a disease with a high incidence in the territory of Rio de Janeiro. In this sense, it is important to develop more effective public health strategies for people affected by this infection.


Assuntos
Humanos , Masculino , Feminino
2.
J. res. dent ; 12(1): 9-16, Jun 2024.
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1556279

RESUMO

Aim: To evaluate the spatial distribution of MIH opacities in first permanent molars (FPM). Materials and methods: an analysis of intraoral photographs of FPM with demarcated MIH opacities was conducted. The presence of opacity was computed in a digital matrix, discriminating the anatomical regions of the FPM surfaces. The frequencies of distribution of the opacities were descriptively analyzed through 227 FPM digital images of 89 children built in GIMP and Python and by Spearman correlation (= 0,05). Results: the occlusal surface was the most affected one (94% to 100%). In the upper FPM, the palatine surface was the second most affected one (84%-91%). In the lower FPM, the vestibular surface was the second most affected one (85%-80%). A similar pattern of opacity distribution was observed in the contralateral teeth. On smooth surfaces, opacities were more frequent in the regions closer to the occlusal surface than to the cervical one. Conclusion: MIH opacities were mostly present on occlusal, vestibular, and lingual/palatine surfaces, respectively. There is a possibility that the occurrences are in accordance with the chronology of dental formation.

3.
J Bodyw Mov Ther ; 39: 258-262, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38876636

RESUMO

INTRODUCTION: Chronic venous disease (CVD) is a highly prevalent disease that presents a wide spectrum of clinical expressions due to abnormalities in the venous system. Patients often have major functional changes that can limit daily activities. However, the functional factors associated with the severity of the disease remain poorly understood. OBJECTIVE: To identify the functional factors associated with CVD severity. METHODS: Seventy-five patients with CVD (92.0% females, 49.6 ± 13.3 years) were evaluated through clinical examination, lower limb perimetry, ankle range of motion (AROM), and lower limb muscle strength by the Heel Rise test, and Sit-to-stand test. Patients were stratified according to the disease severity as mild (telangiectasia, varicose veins, or edema in the lower limbs) or severe CVD (trophic changes or venous ulcer). RESULTS: Patients with severe CVD (n = 13) were older (p = 0.002), predominantly male (p = 0.007), with reduced AROM in dorsiflexion (p = 0.028) and inversion (p = 0.009), reduced lower limb strength by the Heel Rise test (p = 0.040), and greater circumference of the calf (p = 0.020), ankle (p = 0.003), and plantar arch (p = 0.041) when compared to mild CVD (n = 62). Advanced age, male sex, lower ankle range of motion in dorsiflexion, and greater ankle and plantar arch circumferences were associated with CVD severity. However, the ankle circumference (OR 1.258, 95% CI: 1.008-1.570; p = 0.042), together with advanced age and male sex, was the only functional variable that remained independently associated with CVD severity. CONCLUSION: The increased ankle circumference was a determinant of the CVD severity and may assist in risk stratification and guide treatment goals in this population.


Assuntos
Extremidade Inferior , Força Muscular , Amplitude de Movimento Articular , Índice de Gravidade de Doença , Varizes , Humanos , Masculino , Feminino , Pessoa de Meia-Idade , Adulto , Amplitude de Movimento Articular/fisiologia , Doença Crônica , Força Muscular/fisiologia , Extremidade Inferior/fisiopatologia , Varizes/fisiopatologia , Articulação do Tornozelo/fisiopatologia , Fatores Sexuais , Fatores Etários , Idoso , Insuficiência Venosa/fisiopatologia , Estudos Transversais
4.
Sci Rep ; 14(1): 11242, 2024 05 16.
Artigo em Inglês | MEDLINE | ID: mdl-38755230

RESUMO

The interaction of Plasmodium falciparum-infected red blood cells (iRBCs) with the vascular endothelium plays a crucial role in malaria pathology and disease. KAHRP is an exported P. falciparum protein involved in iRBC remodelling, which is essential for the formation of protrusions or "knobs" on the iRBC surface. These knobs and the proteins that are concentrated within them allow the parasites to escape the immune response and host spleen clearance by mediating cytoadherence of the iRBC to the endothelial wall, but this also slows down blood circulation, leading in some cases to severe cerebral and placental complications. In this work, we have applied genetic and biochemical tools to identify proteins that interact with P. falciparum KAHRP using enhanced ascorbate peroxidase 2 (APEX2) proximity-dependent biotinylation and label-free shotgun proteomics. A total of 30 potential KAHRP-interacting candidates were identified, based on the assigned fragmented biotinylated ions. Several identified proteins have been previously reported to be part of the Maurer's clefts and knobs, where KAHRP resides. This study may contribute to a broader understanding of P. falciparum protein trafficking and knob architecture and shows for the first time the feasibility of using APEX2-proximity labelling in iRBCs.


Assuntos
Eritrócitos , Plasmodium falciparum , Proteômica , Proteínas de Protozoários , Eritrócitos/parasitologia , Eritrócitos/metabolismo , Plasmodium falciparum/metabolismo , Proteínas de Protozoários/metabolismo , Humanos , Proteômica/métodos , Malária Falciparum/parasitologia , Malária Falciparum/metabolismo , DNA Liase (Sítios Apurínicos ou Apirimidínicos)/metabolismo , Ascorbato Peroxidases/metabolismo , Ligação Proteica , Biotinilação , Endonucleases , Peptídeos , Proteínas , Enzimas Multifuncionais
5.
Artigo em Inglês | MEDLINE | ID: mdl-38717386

RESUMO

Chagas cardiomyopathy (ChC) presents many biopsychosocial complexities, highlighting the need to have patient self-report questions. This study demonstrates the scope of the use of patient-reported outcome measures (PROMs) in patients with ChC and highlights the main research gaps. This is a scoping review and the search strategy was performed in the Online Medical Literature Analysis and Retrieval System (MEDLINE), Excerpta Medica database (EMBASE), Accumulated Index of Nursing and Allied Health Literature (CINAHL), Cochrane Central, Latin American Literature and Caribbean in Health Sciences (LILACS) and Diagnostic Test Accuracy (DITA). The search identified 4484 studies and 20 studies met the inclusion criteria. The Short-Form of 36 items (SF-36) had potential prognostic value and the ability to identify systolic dysfunction. The Human Activity Profile was able to screen for functional impairment, and the New York Heart Association showed potential prognostic value. The SF-36 and Minnesota Living with Heart Failure Questionnaire were responsive to interventions. The pharmaceutical care affected adherence to treatment as assessed by the Morisky score and also for SF-36. Despite the increased use of PROMs, there are still a large number of gaps in the literature, and further studies using PROMs are needed.

6.
Cureus ; 16(3): e55853, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38590498

RESUMO

The complete safety and efficacy of endoscopic cyclophotocoagulation (ECP) remain unclear in the literature and, to our knowledge, there are no current meta-analyses on phaco-ECP versus phacoemulsification alone to date. Thus, we conducted a systematic review and meta-analysis comparing these two strategies through studies, assessing the effectiveness and safety of outcomes in a population with glaucoma. The protocol for this systematic review was registered in the PROSPERO International Prospective Register of Systematic Reviews (CRD42023482376). We systematically searched PubMed, Embase, and Web of Science from inception to December 2023. A random-effects model was used for all analyses due to heterogeneity. Review Manager 5.3 (Cochrane Centre, The Cochrane Collaboration, Denmark) was used for statistical analysis. Finally, nine studies were included in this comprehensive review and a total of 5389 eyes were analyzed in our study. In comparison to the ECP and phacoemulsification group, those receiving phacoemulsification alone showed better results in best-corrected visual acuity (MD 0.09; CI 95% 0.03 to 0.16; I²=0%), but worse outcomes in intraocular pressure (IOP) (MD -1.49; 95% CI -2.29 to -0.68; I²=29%) and use medications (MD -0.75; 95% CI -0.94 to -0.56; I²=0%) in the last visit. Complication rates, both general and serious, were significantly different between the groups, indicating the potential impact of combined procedures on patient outcomes. Thus, combining ECP with phacoemulsification for glaucoma treatment showed sustained IOP reduction and decreased medication dependence. However, higher complication rates suggest careful consideration of risks. More extensive research with larger trials and longer follow-ups is needed to validate findings and address limitations, providing valuable insights into this treatment approach.

7.
J Pers Med ; 14(4)2024 Apr 18.
Artigo em Inglês | MEDLINE | ID: mdl-38673055

RESUMO

(1) Background: Performance after Cochlear Implantation (CI) can vary depending on numerous factors. This study aims to investigate how meningitis or otosclerosis can influence CI performance. (2) Methods: Retrospective analysis of CI performance in patients with etiological diagnosis of meningitis or otosclerosis, comparing the etiologies and analyzing the image findings, along with electrode array insertion status and technique. (3) Results: Speech recognition in CI patients with otosclerosis improves faster than in patients with meningitis. Other features such as radiological findings, degree of cochlear ossification, surgical technique used and total or partial insertion of electrodes do not seem to be directly related to speech recognition test performance. (4) Conclusions: Patients should be warned that their postoperative results have a strong correlation with the disease that caused their hearing loss and that, in cases of meningitis, a longer duration of speech-language training may be necessary to reach satisfactory results.

8.
Scand J Med Sci Sports ; 34(4): e14620, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38581216

RESUMO

In recent years, there has been an increase in the delivery and evaluation of parent education programs within youth sport. Subsequently, some recent reviews of these programs have been conducted. However, one consistent issue across many of the programs and associated review papers is the lack of an appropriate evaluation framework to guide the planning or associated reporting of the outcomes of the interventions. This has limited understanding of the overall impact of sport parenting interventions. Thus, the purposes of the current study were as follows: (a) to identify commonalities in the reporting and evaluation of parent education programs; (b) to identify gaps in the reporting and evaluation of parent education programs; (c) to draw these insights together to provide suggestions regarding how the RE-AIM could be used to enhance planning and evaluation of evidence-based programs for parent education in sport. Specifically, utilizing the RE-AIM framework to provide insights into pertinent evaluation metrics, this integrative review aimed to identify commonalities and gaps in the reporting of parent education programs. The RE-AIM framework considers the essential elements to assess the external and internal validity of interventions through five dimensions: Reach, Effectiveness, Adoption, Implementation, and Maintenance (Am J Public Health. 1999;89(9):1322-1327). Subsequently, the review aimed to provide suggestions regarding strategies to enhance the planning and evaluation of evidence-based programs for parent education in sport. Overall, the analysis demonstrated that most studies presented some pertinent evaluation information related to the RE-AIM framework, such as the number of participants and contacts made, the measures used, and the program level. However, the studies also lacked information on participant exclusion criteria, the method used to select the delivery agent (e.g., parents engaged in the program), and cost measures. Overall, the current study identified various areas where programs could be enhanced, specifically related to reporting procedural elements (e.g., program design, target population, and costs) pertaining to the implementation of parent education programs.


Assuntos
Esportes , Adolescente , Humanos , Pais , Poder Familiar , Avaliação de Programas e Projetos de Saúde/métodos
9.
Insect Mol Biol ; 2024 Apr 27.
Artigo em Inglês | MEDLINE | ID: mdl-38676396

RESUMO

The western flower thrips, Frankliniella occidentalis, poses a significant challenge in global agriculture as a notorious pest and a vector of economically significant orthotospoviruses. However, the limited availability of genetic tools for F. occidentalis hampers the advancement of functional genomics and the development of innovative pest control strategies. In this study, we present a robust methodology for generating heritable mutations in F. occidentalis using the CRISPR/Cas9 genome editing system. Two eye-colour genes, white (Fo-w) and cinnabar (Fo-cn), frequently used to assess Cas9 function in insects were identified in the F. occidentalis genome and targeted for knockout through embryonic microinjection of Cas9 complexed with Fo-w or Fo-cn specific guide RNAs. Homozygous Fo-w and Fo-cn knockout lines were established by crossing mutant females and males. The Fo-w knockout line revealed an age-dependent modification of eye-colour phenotype. Specifically, while young larvae exhibit orange-coloured eyes, the colour transitions to bright red as they age. Unexpectedly, loss of Fo-w function also altered body colour, with Fo-w mutants having a lighter coloured body than wild type, suggesting a dual role for Fo-w in thrips. In contrast, individuals from the Fo-cn knockout line consistently displayed bright red eyes throughout all life stages. Molecular analyses validated precise editing of both target genes. This study offers a powerful tool to investigate thrips gene function and paves the way for the development of genetic technologies for population suppression and/or population replacement as a means of mitigating virus transmission by this vector.

10.
Pharmaceuticals (Basel) ; 17(3)2024 Feb 23.
Artigo em Inglês | MEDLINE | ID: mdl-38543075

RESUMO

Dyslipidemia plays a fundamental role in the development and progression of atherosclerosis. Current guidelines for treating dyslipidemia focus on low-density lipoprotein-cholesterol (LDL-C). Despite advances in the pharmacotherapy of atherosclerosis, the most successful agents used to treat this disease-statins-remain insufficient in the primary or secondary prevention of acute myocardial infarction. Advancing therapy for hypercholesterolemia with emerging new drugs, either as monotherapy or in combination, is expected to improve cardiovascular outcomes. An emerging field in dyslipidemia pharmacotherapy is research on genetic therapies and genetic modulation. Understanding the genetic mechanisms underlying lipid alterations may lead to the development of personalized treatments that directly target the genetic causes of dyslipidemia. RNA messenger (mRNA)-based therapies are also being explored, offering the ability to modulate gene expression to normalize lipid levels. Furthermore, nanotechnology raises new possibilities in drug delivery for treating dyslipidemia. Controlled-release systems, nanoparticles, and liposomes can enhance the effectiveness and safety of medications by providing more precise and sustained release. This narrative review summarizes current and emerging therapies for the management of patients with dyslipidemia.

11.
J Am Soc Echocardiogr ; 37(7): 655-663, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38556038

RESUMO

BACKGROUND: Although regional wall motion abnormality (RWMA) detection is foundational to transthoracic echocardiography, current methods are prone to interobserver variability. We aimed to develop a deep learning (DL) model for RWMA assessment and compare it to expert and novice readers. METHODS: We used 15,746 transthoracic echocardiography studies-including 25,529 apical videos-which were split into training, validation, and test datasets. A convolutional neural network was trained and validated using apical 2-, 3-, and 4-chamber videos to predict the presence of RWMA in 7 regions defined by coronary perfusion territories, using the ground truth derived from clinical transthoracic echocardiography reports. Within the test cohort, DL model accuracy was compared to 6 expert and 3 novice readers using F1 score evaluation, with the ground truth of RWMA defined by expert readers. Significance between the DL model and novices was assessed using the permutation test. RESULTS: Within the test cohort, the DL model accurately identified any RWMA with an area under the curve of 0.96 (0.92-0.98). The mean F1 scores of the experts and the DL model were numerically similar for 6 of 7 regions: anterior (86 vs 84), anterolateral (80 vs 74), inferolateral (83 vs 87), inferoseptal (86 vs 86), apical (88 vs 87), inferior (79 vs 81), and any RWMA (90 vs 94), respectively, while in the anteroseptal region, the F1 score of the DL model was lower than the experts (75 vs 89). Using F1 scores, the DL model outperformed both novices 1 (P = .002) and 2 (P = .02) for the detection of any RWMA. CONCLUSIONS: Deep learning provides accurate detection of RWMA, which was comparable to experts and outperformed a majority of novices. Deep learning may improve the efficiency of RWMA assessment and serve as a teaching tool for novices.


Assuntos
Aprendizado Profundo , Ecocardiografia , Humanos , Ecocardiografia/métodos , Masculino , Feminino , Inteligência Artificial , Pessoa de Meia-Idade , Idoso , Reprodutibilidade dos Testes , Variações Dependentes do Observador , Disfunção Ventricular Esquerda/fisiopatologia , Disfunção Ventricular Esquerda/diagnóstico por imagem , Disfunção Ventricular Esquerda/diagnóstico , Interpretação de Imagem Assistida por Computador/métodos
12.
J Fish Biol ; 104(6): 1764-1774, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38450744

RESUMO

Fish is an important source of food and income for a significant portion of the Amazonian population, especially those who live along the rivers and lakes in the region. Pseudoplatystoma punctifer (Castelnau, 1855), known as surubim, is a species of Neotropical catfish widely exploited by fisheries and commercially valuable in the Guaporé River basin, Brazil. However, population dynamics are poorly known in the region. To understand the population structure and reproductive biology aspects of the surubim, monthly experimental fisheries were carried out in the São Miguel River, state of Rondônia, Brazil, between August 2020 and July 2021. The captured fish were weighed, and its gonads were removed and weighed for histological analyses (microscopic description) and classification of the maturation stages (macroscopic description). The collected gonads were fixed in 10% buffered formalin, dehydrated, cut into 4-µm-thick sections, and stained with hematoxylin and eosin. A total of 34 individuals were collected (20 females and 14 males), showing positive allometric growth and condition factor from 0.81 to 1.79 for females and males, respectively. Females were larger in size and weight than males. P. punctifer reaches its first maturation at an average length of 68.30 cm, indicating the importance of respecting the minimum capture size as an alternative to ensure the natural stocks of this fishery resource in the region. The results provide support for the establishment of public policies and actions for conservation, management, and regulation of fishing.


Assuntos
Peixes-Gato , Reprodução , Rios , Animais , Brasil , Peixes-Gato/anatomia & histologia , Peixes-Gato/fisiologia , Masculino , Feminino , Dinâmica Populacional , Gônadas/anatomia & histologia , Maturidade Sexual
13.
PLoS Negl Trop Dis ; 18(3): e0012072, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38536893

RESUMO

Acute kidney injury (AKI) is a critical systemic complication caused by Bothrops envenoming, a neglected health problem in the Brazilian Amazon. Understanding the underlying mechanisms leading to AKI is crucial for effectively mitigating the burden of this complication. This study aimed to characterize the urinary protein profile of Bothrops atrox snakebite victims who developed AKI. We analyzed three groups of samples collected on admission: healthy subjects (controls, n = 10), snakebite victims who developed AKI (AKI, n = 10), and those who did not evolve to AKI (No-AKI, n = 10). Using liquid-chromatography tandem mass spectrometry, we identified and quantified (label-free) 1190 proteins. A panel of 65 proteins was identified exclusively in the urine of snakebite victims, with 32 exclusives to the AKI condition. Proteins more abundant or exclusive in AKI's urine were associated with acute phase response, endopeptidase inhibition, complement cascade, and inflammation. Notable proteins include serotransferrin, SERPINA-1, alpha-1B-glycoprotein, and NHL repeat-containing protein 3. Furthermore, evaluating previously reported biomarkers candidates for AKI and renal injury, we found retinol-binding protein, beta-2-microglobulin, cystatin-C, and hepcidin to be significant in cases of AKI induced by Bothrops envenoming. This work sheds light on physiological disturbances caused by Bothrops envenoming, highlighting potential biological processes contributing to AKI. Such insights may aid in better understanding and managing this life-threatening complication.


Assuntos
Injúria Renal Aguda , Fenômenos Biológicos , Bothrops , Mordeduras de Serpentes , Animais , Humanos , Mordeduras de Serpentes/complicações , Bothrops atrox , Proteômica , Injúria Renal Aguda/etiologia
14.
Braz J Otorhinolaryngol ; 90(3): 101402, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38428329

RESUMO

OBJECTIVES: To report two new variants of ALMS1 gene and to discuss the audiological evolution and clinical phenotype in two pairs of siblings with Alström syndrome. REPORT: This paper is a multi-disciplinary diagnostic evaluation, with genetic and audiological analysis that aims to report two new variants of the ALMS1 gene and to discuss the audiological evolution and clinical phenotype in a case series of patients with familial Alström syndrome. Therefore, we describe 4 cases presenting a complete audiometric profile of two pairs of unrelated siblings, to provide a better understanding of this very rare disease. Additionally, the present study identified two heterozygous mutations in the ALMS1 gene. CONCLUSION: This Clinical Capsule Report highlights the importance of audiological monitoring throughout the development of patients with Alström syndrome. The two variants found were not previously reported in the literature, which expands the spectrum of ALMS1 variants in Alström syndrome.


Assuntos
Síndrome de Alstrom , Proteínas de Ciclo Celular , Mutação , Fenótipo , Pré-Escolar , Feminino , Humanos , Masculino , Síndrome de Alstrom/genética , Proteínas de Ciclo Celular/genética , Lactente , Adulto
15.
J Fungi (Basel) ; 10(2)2024 Jan 31.
Artigo em Inglês | MEDLINE | ID: mdl-38392790

RESUMO

The survival of pathogenic fungi in the host after invasion depends on their ability to obtain nutrients, which include the transition metal zinc. This essential micronutrient is required to maintain the structure and function of various proteins and, therefore, plays a critical role in various biological processes. The host's nutritional immunity limits the availability of zinc to pathogenic fungi mainly by the action of calprotectin, a component of neutrophil extracellular traps. Here we investigated the adaptive responses of Fonsecaea pedrosoi to zinc-limiting conditions. This black fungus is the main etiological agent of chromoblastomycosis, a chronic neglected tropical disease that affects subcutaneous tissues. Following exposure to a zinc-limited environment, F. pedrosoi induces a high-affinity zinc uptake machinery, composed of zinc transporters and the zincophore Pra1. A proteomic approach was used to define proteins regulated by zinc deprivation. Cell wall remodeling, changes in neutral lipids homeostasis, and activation of the antioxidant system were the main strategies for survival in the hostile environment. Furthermore, the downregulation of enzymes required for sulfate assimilation was evident. Together, the adaptive responses allow fungal growth and development and reveals molecules that may be related to fungal persistence in the host.

16.
Res Q Exerc Sport ; : 1-11, 2024 Feb 02.
Artigo em Inglês | MEDLINE | ID: mdl-38306672

RESUMO

Purpose: We aimed to investigate the chronic effects of low-load strength training (LT) with complete intermittent blood flow restriction (IBFR) on neural adaptations and strength in biceps brachii. Methods: Nineteen volunteers were randomly assigned into two different 9-week training protocols consisting of three assessment weeks and six training weeks: (a) LT with complete IBFR (LT-IBFR; n = 10) and (b) LT without complete IBFR (LT; n = 9). Strength was evaluated by predicted 1 repetition maximum (1RM) at weeks 1, 5, and 9 and neural function by root mean square (RMS) and median frequency (MDF) at sessions 1, 7, and 12 during the first three and last three repetitions. Both groups performed three sets of Scott curl with 20% of predicted 1RM interspersed with 90s rest twice a week. Results: No changes were found in predicted 1RM throughout the training protocols nor between groups. LT-IBFR group showed lower RMS in the first set than LT for the first three repetitions and higher RMS in all sets for the last three repetitions with decreases in this value across the sets with no longitudinal changes for both groups. MDF in the first three repetitions did not differentiate between groups, however, in the last three repetitions, MDF were lower for LTIBFR group in all sets and it increased across the sets for this condition with no chronical changes for both groups in both repetitions zones. These results suggest that LT-IBFR may be ineffective for increasing Q5 strength and it did not promote chronic neural adaptations.

17.
J Fish Biol ; 104(5): 1339-1349, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38316148

RESUMO

The early development of the freshwater fish Rhytiodus microlepis is characterized by the description of external morphological, meristic, and morphometric changes, as well as the growth patterns, thereby establishing a reference for the identification of its larvae and juveniles. Specimens were collected from the Amazon river channel and floodplain. Ninety-seven individuals were analysed with standard length varying between 4.31 and 79.23 mm. Rhytiodus microlepis larvae are altricial, with an elongated and fusiform body, anal opening reaching the middle region of the body, and simple nostrils becoming double and tubular during development. The pigments vary from one to two chromatophores in the dorsal region of the head in pre-flexion and flexion, but later the pigmentation pattern intensifies, transverse bands appear along the body, and a conspicuous spot appears in the basal region of the caudal fin. The total number of myomeres ranges from 49 to 50. During the transition from larval (post-flexion) to the juvenile periods, the most significant anatomical changes occur, such as the presence of all fins and increased body pigmentation. Integrated myomere count and pigmentation pattern are effective for the correct identification of the initial life stages of R. microlepis from the Amazon basin. Our results expand the knowledge about the early life history of Neotropical freshwater fish species.


Assuntos
Caraciformes , Larva , Pigmentação , Rios , Animais , Caraciformes/crescimento & desenvolvimento , Caraciformes/anatomia & histologia , Brasil , Larva/crescimento & desenvolvimento , Larva/anatomia & histologia , Água Doce , Nadadeiras de Animais/anatomia & histologia , Nadadeiras de Animais/crescimento & desenvolvimento
18.
BMC Geriatr ; 24(1): 25, 2024 01 05.
Artigo em Inglês | MEDLINE | ID: mdl-38182982

RESUMO

BACKGROUND: Although dementia has emerged as an important risk factor for severe SARS-CoV-2 infection, results on COVID-19-related complications and mortality are not consistent. We examined the clinical presentations and outcomes of COVID-19 in a multicentre cohort of in-hospital patients, comparing those with and without dementia. METHODS: This retrospective observational study comprises COVID-19 laboratory-confirmed patients aged ≥ 60 years admitted to 38 hospitals from 19 cities in Brazil. Data were obtained from electronic hospital records. A propensity score analysis was used to match patients with and without dementia (up to 3:1) according to age, sex, comorbidities, year, and hospital of admission. Our primary outcome was in-hospital mortality. We also assessed admission to the intensive care unit (ICU), invasive mechanical ventilation (IMV), kidney replacement therapy (KRT), sepsis, nosocomial infection, and thromboembolic events. RESULTS: Among 1,556 patients included in the study, 405 (4.5%) had a diagnosis of dementia and 1,151 were matched controls. When compared to matched controls, patients with dementia had a lower frequency of dyspnoea, cough, myalgia, headache, ageusia, and anosmia; and higher frequency of fever and delirium. They also had a lower frequency of ICU admission (32.7% vs. 47.1%, p < 0.001) and shorter ICU length of stay (7 vs. 9 days, p < 0.026), and a lower frequency of sepsis (17% vs. 24%, p = 0.005), KRT (6.4% vs. 13%, p < 0.001), and IVM (4.6% vs. 9.8%, p = 0.002). There were no differences in hospital mortality between groups. CONCLUSION: Clinical manifestations of COVID-19 differ between older inpatients with and without dementia. We observed that dementia alone could not explain the higher short-term mortality following severe COVID-19. Therefore, clinicians should consider other risk factors such as acute morbidity severity and baseline frailty when evaluating the prognosis of older adults with dementia hospitalised with COVID-19.


Assuntos
COVID-19 , Demência , Sepse , Humanos , Idoso , Brasil/epidemiologia , Estudos de Coortes , COVID-19/complicações , COVID-19/diagnóstico , COVID-19/epidemiologia , SARS-CoV-2 , Pacientes Internados , Demência/diagnóstico , Demência/epidemiologia , Demência/terapia
19.
Int J Biometeorol ; 68(3): 479-494, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38177806

RESUMO

The objective of this study was to propose bioclimatic zoning to classify human thermal comfort and discomfort in the state of Minas Gerais, Brazil; both historical and future scenarios are considered. Thus, historical series (1961 to 2017) of the effective temperature index as a function of the wind (ETW) were obtained as a function of the monthly average values of the minimum, mean, and maximum dry-bulb air temperatures (tdb,min, tdb,mean, and tdb,max, respectively), in addition to the mean relative humidity ([Formula: see text], %) and mean wind speed ([Formula: see text], m s -1). The data were obtained from 34 weather stations and subjected to trend analysis by using the nonparametric Mann-Kendall test, thus enabling the simulation of future scenarios (for 2028 and 2038). Then, to define the thermal ranges of the bioclimatic zoning, maps of ETWmin, ETWmean, and ETWmax were created from geostatistical analysis. Overall, the results show warming trends for the upcoming years in Minas Gerais municipalities. All climatic seasons showed an increase in the frequency of new classifications in the upper adjacent classes, which indicates climate warming. Therefore, when considering future scenarios for the autumn and winter seasons, attention should be given to changes in predicted thermal sensation, especially in the Central Minas Gerais, Belo Horizonte Metropolitan, South/Southwest Minas, Campo das Vertentes, and Zona da Mata.


Assuntos
Percepção , Tempo (Meteorologia) , Humanos , Brasil , Estações do Ano , Temperatura
20.
Trop Med Int Health ; 29(1): 6-12, 2024 01.
Artigo em Inglês | MEDLINE | ID: mdl-37952931

RESUMO

OBJECTIVE: Chagas cardiomyopathy (ChC) is the most severe clinical form of Chagas disease and, in association with psychosocial factors, can compromise the health-related quality of life (HRQoL) of affected patients. To date, there is no specific instrument to assess the HRQoL of these patients, and the Minnesota Living with Heart Failure Questionnaire (MLwHFQ), specific for heart failure, is being used both in research and current clinical practice. Therefore, we aimed to verify the validity of the MLwHFQ in the assessment of HRQoL of patients with ChC. METHODS: Fifty patients with ChC (50.6 ± 10.1 years, NYHA I-III) were evaluated. The MLwHFQ, Short-Form of Health Survey (SF-36), Beck Depression Inventory (BDI), and Human Activity Profile (HAP) were applied. All patients underwent echocardiography and Cardiopulmonary Exercise Testing (CPET). RESULTS: The MLwHFQ score correlated with almost all SF-36 domains (with r-value ranging from -0.38 to -0.69), except pain (p = 0.118). The MLwHFQ score also correlated with the BDI score (r = 0.748; p < 0.001), HAP score (r = -0.558; p = 0.001), peak oxygen uptake (r = -0.352; p = 0.01), and left ventricular ejection fraction (r = -0.329; p = 0.021). There was no significant difference in the score found on the MLwHFQ among NYHA classes (p = 0.101), as well as between patients with systolic dysfunction (n = 30) and preserved cardiac function (n = 20) (p = 0.058). Similarly, there was no significant difference in the score found on the physical (p = 0.423) and mental (p = 0.858) components of SF-36 between patients with systolic dysfunction and preserved cardiac function (p = 0.271 and p = 0.609, respectively). There was also no difference in the mental component of SF-36 among NYHA classes (p = 0.673). However, the HRQoL using the physical component of SF-36 was worse in advanced NYHA classes (p = 0.014). CONCLUSION: MLwHF correlated with most SF-36 HRQoL domains, depressive symptoms, physical activity, and systolic function and seems to be valid in assessing the HRQoL of ChC patients.


Assuntos
Cardiomiopatia Chagásica , Insuficiência Cardíaca , Humanos , Qualidade de Vida/psicologia , Cardiomiopatia Chagásica/complicações , Volume Sistólico , Função Ventricular Esquerda , Inquéritos e Questionários
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