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1.
J Sports Sci ; 41(8): 803-811, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-37496305

RESUMO

There were three purposes to this research. First, we sought to test the differential role of harmonious and obsessive passion in predicting intention and habit for exercise. The second goal of this research was to test the associations between intention, habit and exercise frequency. Last, the third goal was to assess the mediation role of intention and habit in the relationship between both forms of passion and exercise frequency. The sample consisted of 284 participants (140 males, 144 females) aged 18-60 years old (M age = 29.81, SD = 9.16). Regression paths of the structural model indicated significant associations: a) harmonious passion was significantly associated with intentions and habit; b) obsessive passion was significantly associated with habit; c) intentions and habit were significantly associated with exercise frequency. The mediation model variance explained was 17% (p < .001). The total effect via harmonious and obsessive passion was ß = .57 (IC95% = .42, .73) and the total indirect effect was ß = .11 (IC95% = .02, .24). Having harmonious passion for a fitness activity appears to have the potential to increase regular physical activity among exercisers. Individuals who recognize the significance of physical exercise and participate in activities they enjoy the most can affirm the positive effects on their health from being active.


Assuntos
Emoções , Intenção , Masculino , Feminino , Humanos , Adolescente , Adulto Jovem , Adulto , Pessoa de Meia-Idade , Motivação , Exercício Físico , Hábitos
2.
Braz J Biol ; 83: e271509, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37194826

RESUMO

Management programs and efficient techniques are necessary to recover degraded ecosystems. The sewage sludge is rich in nitrogen (N) and with the potential to fertilize Sapindus saponaria L. (Sapinales: Sapindaceae), used in the recovery of degraded areas; this can affect the insect fauna. The study's objective was to evaluate, for 24 months, the abundance of chewing insects, dipterans, pollinators, and predators on S. saponaria plants fertilized with or without dehydrated sewage sludge in a degraded area. The experimental design was completely randomized (with the same characteristics) with two treatments (with or without dehydrated sewage sludge) and 24 replicates, each with one plant. The abundance of Anastrepha sp. (Tephritidae), Cerotoma sp. (Chrysomelidae), Curculionidae, Musca domestica L. (Muscidae), Mantis religiosa L. (Mantodea: Mantidae), Oxyopidae, Salticidae, Tettigoniidae (Orthoptera), and Teudis sp. (Anyphaenidae) was higher on fertilized plants. The abundances of Teudis sp. and Tmarus sp. (Thomisidae) and M. religiosa and Teudis sp. were positively correlated with chewing insects and Diptera, respectively. The population increase of insects and spiders on S. saponaria plants fertilized with dehydrated sewage sludge (bigger crowns) has shown to be suitable for recovering degraded areas with a higher number of niches and better food quality, improving the ecological indices of the area.


Assuntos
Sapindaceae , Sapindus , Saponaria , Aranhas , Animais , Esgotos , Ecossistema , Insetos
3.
Braz J Biol ; 83: e265435, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36700592

RESUMO

Sapindus saponaria L. (Sapindaceae) is a pioneer species used in programs to recover degraded areas. The trees also assist in the pest control of some insects due to the composition of saponins on their leaves. In addition, these chemical components are important to pharmaceutical product production. The objective was to evaluate the impact of spatial distribution, indices and ecological relationship of arthropods on S. saponaria leaves to preserve the balance of biodiversity. Aggregated distribution of arthropods was observed; the numbers of phytophagous arthropods were higher on the adaxial leaf face than on the abaxial part. Only Aleyrodidae (Hemiptera) had a higher presence on the abaxial leaf face of S. saponaria saplings. Abundance, diversity, and species richness of natural enemies correlated positively with phytophagous and pollinators insects. On the other hand, the number of Lyriomyza sp. mines correlated negatively with Pseudomyrmex termitarius (Smith) (Hymenoptera: Formicidae). All this information can assist and guide integrated pest management programs.


Assuntos
Artrópodes , Hemípteros , Sapindaceae , Sapindus , Saponaria , Animais , Insetos , Biodiversidade
4.
Ultrasound Obstet Gynecol ; 61(1): 12-25, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-35751886

RESUMO

OBJECTIVES: To compare the reported rate of any congenital anomaly and perinatal outcome of pregnancy following blastocyst- vs cleavage-stage embryo transfer using a pairwise meta-analysis and to evaluate the same outcomes following fresh-blastocyst, frozen-blastocyst, fresh-cleavage or frozen-cleavage embryo transfer using a network meta-analysis. METHODS: A literature search was performed in PubMed, Scopus and CENTRAL and registers for ongoing studies, from inception to February 2022, for randomized controlled trials (RCTs) with any sample size and observational studies including at least 100 live births per group, comparing the rates of any congenital anomaly and perinatal outcome of pregnancy following fresh/frozen embryo transfer at cleavage (day 2-3) vs blastocyst (day 5-7) stage. Risk ratios (RRs) along with their 95% CIs were pooled via a random-effects model meta-analysis. Within a frequentist network meta-analysis framework, outcomes of all four treatment modalities (i.e. fresh-blastocyst, fresh-cleavage, frozen-blastocyst, frozen-cleavage) were compared further. Any congenital anomaly constituted the primary outcome, whereas preterm delivery (delivery < 37 weeks), low birth weight (LBW; < 2500 g), gender of the neonate (male), perinatal death and healthy neonate (defined as liveborn neonate, delivered at term, weighing ≥ 2500 g, surviving for at least 28 days postbirth and without any congenital anomaly) were considered as secondary outcomes. Subgroup analyses by plurality (liveborn singleton vs multiple pregnancy) were conducted in the pairwise and network meta-analyses. The risk of bias was assessed using the RoB2 tool for RCTs and the ROBINS-I tool for non-randomized studies. Certainty of evidence was assessed using GRADE. RESULTS: Through the literature search, 550 studies were retrieved and 33 were included in the systematic review. We found no significant difference in the risk for any congenital anomaly between blastocyst- and cleavage-stage transfer (RR, 0.80 (95% CI, 0.63-1.03); 10 studies; n = 192 442; I2 = 85.5%). An increased probability of a male neonate was observed following blastocyst- vs cleavage-stage transfer (RR, 1.07 (95% CI, 1.06-1.09); 18 studies; n = 227 530; I2 = 32.7%). No significant differences in other secondary outcomes or significant subgroup differences between liveborn singletons and multiple pregnancies were observed. The network meta-analysis showed a significantly lower risk for LBW following frozen-blastocyst vs fresh-blastocyst (RR, 0.76 (95% CI, 0.60-0.95)) or fresh-cleavage (RR, 0.74 (95% CI, 0.59-0.93)) transfer. Frozen-blastocyst transfer was associated with an increased risk for perinatal death compared with the fresh-cleavage method (RR, 2.06 (95% CI, 1.10-3.88)). The higher probability of a male neonate following blastocyst transfer remained evident in the network comparisons. All outcomes were assessed to be of very-low certainty of evidence. CONCLUSIONS: Current very-low certainty of evidence shows that there may be little-to-no difference in the risk for congenital anomaly or adverse perinatal outcome of pregnancy following blastocyst- vs cleavage-stage embryo transfer, although there was a slightly increased probability of a male neonate following blastocyst transfer. When considering cryopreservation, frozen-blastocyst transfer was associated with a reduction in the risk for LBW compared with both fresh-transfer modalities, and fresh-cleavage transfer may be associated with a reduction in the risk for perinatal death compared with frozen-blastocyst transfer. High-quality RCTs with separate data on fresh and frozen cycles and consistent reporting of culture conditions and freezing methods are mandatory. Individual participant data meta-analyses are required to address the substantial inconsistency resulting from current aggregate data approaches. © 2022 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of International Society of Ultrasound in Obstetrics and Gynecology.


Assuntos
Morte Perinatal , Feminino , Humanos , Recém-Nascido , Gravidez , Blastocisto , Transferência Embrionária/métodos , Metanálise em Rede , Morte Perinatal/etiologia , Taxa de Gravidez , Ensaios Clínicos Controlados Aleatórios como Assunto , Estudos Observacionais como Assunto
5.
J Sports Sci ; 40(18): 2095-2101, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-36251986

RESUMO

The present study explored the mediation role of past exercise adherence, self-reported frequency and intentions in the association between past experience and future exercise adherence. In total, 431 exercisers (female = 216; male = 215) aged 18 and 64 years, engaged in fitness activities such as group fitness classes and resistance training, were included in the analysis. Serial mediation procedures were employed to examine the direct, indirect, and total indirect effects among variables. The predictor variable and all mediators displayed a positive and significant association with future six-month adherence. Past six-month exercise adherence displayed the most significant association with future six-month adherence. The sequential indirect path from exercise experience → past six-months adherence → self-reported frequency → intentions future six-months adherence displayed a positive and significant effect (ß = .19 [CI95% = .09, .31]), presenting a partial mediation effect. Past behaviour is the most significant predictor of future adherence, and thus interventions should be based on promoting consistent exercise frequency. Professionals working in the fitness centre context can identify possible dropouts based on their past behaviour and intentions to be physically active in the future.


Assuntos
Exercício Físico , Análise de Mediação , Humanos , Masculino , Feminino , Intenção , Previsões
6.
Cuad. psicol. deporte ; 22(3): 151-162, sep.-dic. 2022. ilus, tab
Artigo em Português | IBECS | ID: ibc-209151

RESUMO

El concepto de pasión se refiere a una fuerte inclinación a realizar una actividad que las personas disfrutan, que encuentran importante y en la que invierten tiempo y energía. El Modelo Dualístico de la Pasión explora este concepto en las dimensiones armoniosa y obsesiva y sus implicaciones en la motivación y parámetros asociados a la realización de conductas. Para apoyar la modificación conductual orientada a la práctica del ejercicio, son cruciales instrumentos adecuados y de calidad para evaluar la pasión. El objetivo principal del presente estudio fue analizar la validez y confiabilidad de la Escala de la Pasión en practicantes de ejercicio físico en el contexto del gimnasio y clubes de salud. La muestra estuvo compuesta por 203 participantes (sexo femenino = 109; sexo masculino = 94), con edades comprendidas entre 18 y 68 (M = 29.24; DT = 9.76) años. Los resultados de este estudio indican que el modelo de medición original de la Escala de Pasión de 16 ítems presentó un ajuste aceptable a los datos. Con la excepción de la pasión obsesiva por el hábito, todos los factores de la escala mostraron asociaciones positivas con la intención y el hábito. Los datos de este estudio sugieren que el modelo de medición Passion Scale (16 ítems/tres factores) adaptado al contexto del ejercicio se ajusta a los datos de la muestra del estudio y es una herramienta viable para el estudio de los factores involucrados en la adherencia continua en la práctica. (AU)


The concept of passion refers to a strong inclination to carry out an activity that people enjoy, that they find important and in which they invest time and energy. The Dualistic Model of Passion explores this concept in the harmonious and obsessive dimensions and its implications for motivation and parameters associated with the performance of behaviors. To support behavioral modification oriented towards the practice of exercise, adequateand quality instruments to assess passion are crucial.The main objective of the present study was to analyze the validity and reliability of the Passion Scale in practitioners of physical exercise in the context of the gym and health clubs. The sample consisted of 203 participants (female sex = 109; male sex = 94), aged between 18 and 68 (M = 29.24; SD = 9.76) years.The results of this study indicate that the original 16-item Passion Scale measurement model presented an acceptable fit to the data. Exceptfor the association between obsessive passion on habit, all factors on the scale showed positive associations with intention and habit. The data from this study suggest that the Passion Scale measurement model (16 items/three factors) adapted to the exercise context fits the data in the study sample and is a viable tool for the study of factors involved in continued adherence in practice. (AU)


O conceito de paixão refere-se a uma forte inclinação para a realização de uma atividade que as pessoas gostam, que acham importante e na qual investem tempo e energia. O Modelo Dualístico da Paixão explora esse conceito nas dimensões harmoniosa e obsessiva e suas implicações na motivação e parâmetros associados à realização de comportamentos. Visando o apoio à modificação comportamental orientada para a prática de exercício, instrumentos adequados e com qualidade para avaliar a paixão são determinantes. O objetivo do presente estudo foi analisar a validade e a fiabilidade da Passion Scale em praticantes de exercício físico no contexto do ginásio e health clubs. A amostra foi constituída por 203 participantes (sexo feminino = 109; sexo masculino = 94), com idades compreendidas entre 18 e 68 (M = 29.24; DP = 9.76) anos. Os resultados deste estudo indicam que o modelo de medida original de 16 itens da Passion Scale apresentou um ajustamento aceitável aos dados. Há exceção da paixão obsessiva com o hábito, todos os fatores da escala apresentaram associações positivas com a intenção e hábito. Os dados deste estudo sugerem que o modelo de medida da Passion Scale (16 itens/três fatores) adaptado ao contexto do exercício se ajusta aos dados na amostra em estudo e é uma ferramenta viável para o estudo de fatores envolvidos à adesão continuada na prática. (AU)


Assuntos
Humanos , Masculino , Feminino , Adulto Jovem , Adulto , Pessoa de Meia-Idade , Idoso , Exercício Físico , Hábitos , Motivação , Inquéritos e Questionários , Estudos Transversais , Portugal , Academias de Ginástica
7.
Braz J Biol ; 84: e260721, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35674588

RESUMO

Forest restoration is mainly based on plant-soil relationships and plant species with economic potential, but those between insects and other arthropods are also important to this reestablishment. The objective was to evaluate, during 24 months, the relationships between tending ants, Hemiptera phytophagous, predators and their distribution pattern (aggregated, random or uniform). The arthropods were sampled, stored and identified and their relationships and distribution patterns calculated with the BioDiversity-Pro software. The number of tending ants and phytophagous Hemiptera, Brachymyrmex sp. and Aethalion reticulatum, Cephalotes and Aleyrodidae were positively correlated. Tending ants were negatively correlated with Sternorrhyncha predators on A. auriculiformis saplings. The distribution of arthropods was aggregated, except for Teudis sp. and Cephalocoema sp., with a random pattern. The herbivores Stereoma anchoralis, Aethalion reticulatum and Tetragonisca angustula and the predators Brachymyrmex sp. and Dolichopodidae were the most abundant arthropods. The relationships between the arthropods studied on A. auriculiformis indicate that this plant, even introduced, is suitable for programs to recover degraded areas in the savannah.


Assuntos
Acacia , Formigas , Artrópodes , Fabaceae , Hemípteros , Aranhas , Animais , Ecossistema , Insetos , Plantas
8.
Med Oral Patol Oral Cir Bucal ; 27(5): e452-e459, 2022 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-35717620

RESUMO

BACKGROUND: Oral mucositis (OM) is an important acute adverse effect of anticancer therapy. This condition presents high morbidity and may lead to the suspension of anticancer therapy. MATERIAL AND METHODS: We reviewed the literature on the pathobiology of OM and the properties of erythromycin (EM), to consider the possibility of its use for the prevention and treatment of OM. We searched the PubMed, Scopus and Web of Science databases and selected complete articles published in English or Spanish that met the inclusion criteria. The search terms "erythromycin", "inflammation", "immunomodulation" and "oral mucositis" were used. RESULTS: The control of free radicals, transcription factors and pro-inflammatory cytokines has been considered as the key to the management of OM. EM has the ability to modulate oxidative stress, acts on the transcriptional system and inhibits the production of several cytokines that have been directly implicated in OM pathobiology. CONCLUSIONS: The present review suggests that EM could be effective in the treatment of OM. Experimental studies investigating the use of EM in OM should be encouraged.


Assuntos
Mucosite , Estomatite , Citocinas , Eritromicina/uso terapêutico , Humanos , Estomatite/tratamento farmacológico
9.
Public Health ; 201: 69-74, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34794094

RESUMO

OBJECTIVES: This study assessed the moderating role of education on the relationship between multimorbidity and mortality among older adults in Brazil. STUDY DESIGN: This was a cohort study. METHODS: This study used data from 1768 participants of the Health, Well-Being and Ageing Cohort Study (SABE) who were assessed between 2006 and 2015. The Cox Proportional Risks Model was used to evaluate the association between multimorbidity (two or more chronic diseases) and mortality. An interaction term between education and multimorbidity was included to test the moderating role of education in this association. RESULTS: The average follow-up time was 4.5 years, with a total of 589 deaths in the period. Multimorbidity increased the risk of mortality (hazard ratio [HR] 1.55, 95% confidence interval [CI] 1.27-1.91), and this association was not moderated by education (HR 1.06, 95% CI 1.00-1.13; P value = 0.07). CONCLUSIONS: The impact of education and multimorbidity on mortality emphasises the need for an integrated approach directed towards the social determinants of health to prevent multimorbidity and its burden among older adults.


Assuntos
Envelhecimento , Multimorbidade , Idoso , Doença Crônica , Estudos de Coortes , Humanos , Modelos de Riscos Proporcionais
10.
J Hosp Infect ; 117: 124-134, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-34461177

RESUMO

BACKGROUND: Nosocomial outbreaks of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) are frequent despite implementation of conventional infection control measures. An outbreak investigation was undertaken using advanced genomic and statistical techniques to reconstruct likely transmission chains and assess the role of healthcare workers (HCWs) in SARS-CoV-2 transmission. METHODS: A nosocomial SARS-CoV-2 outbreak in a university-affiliated rehabilitation clinic was investigated, involving patients and HCWs, with high coverage of pathogen whole-genome sequences (WGS). The time-varying reproduction number from epidemiological data (Rt) was estimated, and maximum likelihood phylogeny was used to assess genetic diversity of the pathogen. Genomic and epidemiological data were combined into a Bayesian framework to model the directionality of transmission, and a case-control study was performed to investigate risk factors for nosocomial SARS-CoV-2 acquisition in patients. FINDINGS: The outbreak lasted from 14th March to 12th April 2020, and involved 37 patients (31 with WGS) and 39 employees (31 with WGS), 37 of whom were HCWs. Peak Rt was estimated to be between 2.2 and 3.6. The phylogenetic tree showed very limited genetic diversity, with 60 of 62 (96.7%) isolates forming one large cluster of identical genomes. Despite the resulting uncertainty in reconstructed transmission events, the analyses suggest that HCWs (one of whom was the index case) played an essential role in cross-transmission, with a significantly greater fraction of infections (P<2.2e-16) attributable to HCWs (70.7%) than expected given the number of HCW cases (46.7%). The excess of transmission from HCWs was higher when considering infection of patients [79.0%; 95% confidence interval (CI) 78.5-79.5%] and frail patients (Clinical Frailty Scale score >5; 82.3%; 95% CI 81.8-83.4%). Furthermore, frail patients were found to be at greater risk for nosocomial COVID-19 than other patients (adjusted odds ratio 6.94, 95% CI 2.13-22.57). INTERPRETATION: This outbreak report highlights the essential role of HCWs in SARS-CoV-2 transmission dynamics in healthcare settings. Limited genetic diversity in pathogen genomes hampered the reconstruction of individual transmission events, resulting in substantial uncertainty in who infected whom. However, this study shows that despite such uncertainty, significant transmission patterns can be observed.


Assuntos
COVID-19 , Infecção Hospitalar , Substâncias Explosivas , Teorema de Bayes , Estudos de Casos e Controles , Infecção Hospitalar/epidemiologia , Surtos de Doenças , Genômica , Pessoal de Saúde , Humanos , Filogenia , SARS-CoV-2
11.
Percept Mot Skills ; 128(6): 2669-2687, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34382478

RESUMO

In the present cross-sectional study, we adapted and examined the validity of a Portuguese version of the Sport Motivation Scale II (SMS-II-P) within a sample of 1148 Portuguese athletes (women = 546, men = 602) with a mean age of 18.45 years (SD = 5.36), participating in a variety of sports (i.e., football, basketball, swimming, and athletics). We conducted confirmatory factor analysis, convergent and discriminant validity analysis, and multigroup analysis across participants' sport type (team and individual) and gender. We also examined the correlations between the SMS-II-P behavioral regulations and basic psychological needs satisfaction. The results supported that the SMS-II-P had good psychometric properties and was invariant across gender and sport type. The scale demonstrated good convergent and discriminant validity, and the subscales achieved adequate internal consistency. Correlations between the six types of regulation measured in the SMS-II supported the distinction between autonomous and controlled behavioral regulations, and the correlations between these subscales and other measures of autonomy, competence, and relatedness satisfaction provided evidence of the self-determination continuum. Implications of this research for assessing Portuguese athletes and conducting future research are discussed.


Assuntos
Basquetebol , Motivação , Adolescente , Estudos Transversais , Feminino , Humanos , Masculino , Portugal , Psicometria , Reprodutibilidade dos Testes , Inquéritos e Questionários
12.
Theriogenology ; 172: 123-132, 2021 Sep 15.
Artigo em Inglês | MEDLINE | ID: mdl-34237633

RESUMO

Ovarian tissue transplantation (OTT) is a technique well established and successfully applied in humans using mainly orthotopic or heterotopic transplantation sites. In livestock, OTT is still in its infancy and, therefore, different aspects of the technique, including the efficiency of different heterotopic OTT sites as well as the potential effect of age (i.e., young vs. old mares) in the ovarian graft quality, need to be investigated. The present study investigated the efficacy of the intramuscular (IM) or the novel subvulvar mucosa (SV) heterotopic autotransplantation sites to maintain the survivability of the grafts for 3 and 7 days post-OTT. Ovarian biopsy fragments were obtained in vivo and distributed to the following treatments: Fresh control group (ovarian fragments immediately fixed), SV-3, IM-3, SV-7, and IM-7. During and after graft harvesting, the macroscopic characteristics of the grafts (i.e., adherence, morphology, and bleeding) were scored, and the percentages of morphologically normal and developing preantral follicles as well as the follicular and stromal cell densities of the grafts were evaluated. The results were that similar (P > 0.05) macroscopic scores were observed between both transplantation sites 7 days post-OTT, with positive correlations (P < 0.01) found among adherence, morphology, and bleeding of the grafts. A lower (P < 0.05) percentage of morphologically normal follicles was found 7 days post-OTT in the SV site (82%) compared with the Fresh control group (99%) and IM site (95%); however, the percentages of developing follicles were similar (P > 0.05) between both transplantation sites 7 days post-OTT (30-43%). Although similar (P > 0.05) follicular densities were found in both transplantation sites in young and old mares at 3 and 7 days post-OTT, large individual variation in the follicular depletion rate was observed regardless of transplantation site. The Fresh control group and SV-7 treatments had higher (P < 0.05) stromal cell densities in young and old mares compared with both IM-7 treatments. When comparing transplant sites between young and old mares, the follicular density in old mares and the stromal cell density in young mares were greater (P < 0.05) in the SV than in the IM site. In conclusion, even though the transplantation sites differentially affected some end points, overall comparable findings of the OTT technique using both heterotopic autotransplantation sites (i.e., IM and SV) for equine ovarian tissue were observed.


Assuntos
Folículo Ovariano , Ovário , Animais , Criopreservação/veterinária , Feminino , Cavalos , Células Estromais , Transplante Autólogo/veterinária
13.
Metallomics ; 13(4)2021 04 21.
Artigo em Inglês | MEDLINE | ID: mdl-33791795

RESUMO

Previous studies have shown the porphobilinogen synthase (PBGS) zinc-binding mechanism and its conservation among the living cells. However, the precise molecular interaction of zinc with the active center of the enzyme is unknown. In particular, quantum chemistry techniques within the density functional theory (DFT) framework have been the key methodology to describe metalloproteins, when one is looking for a compromise between accuracy and computational feasibility. Considering this, we used DFT-based models within the molecular fractionation with conjugate caps scheme to evaluate the binding energy features of zinc interacting with the human PBGS. Besides, phylogenetic and clustering analyses were successfully employed in extracting useful information from protein sequences to identify groups of conserved residues that build the ions-binding site. Our results also report a conservative assessment of the relevant amino acids, as well as the benchmark analysis of the calculation models used. The most relevant intermolecular interactions in Zn2+-PBGS are due to the amino acids CYS0122, CYS0124, CYS0132, ASP0169, SER0168, ARG0221, HIS0131, ASP0120, GLY0133, VAL0121, ARG0209, and ARG0174. Among these residues, we highlighted ASP0120, GLY0133, HIS0131, SER0168, and ARG0209 by co-occurring in all clusters generated by unsupervised clustering analysis. On the other hand, the triple cysteines at 2.5 Å from zinc (CYS0122, CYS0124, and CYS0132) have the highest energy attraction and are absent in the taxa Viridiplantae, Sar, Rhodophyta, and some Bacteria. Additionally, the performance of the DFT-based models shows that the processing time-dependence is more associated with the choice of the basis set than the exchange-correlation functional.


Assuntos
Evolução Biológica , Metaloproteínas/química , Metaloproteínas/metabolismo , Sintase do Porfobilinogênio/química , Sintase do Porfobilinogênio/metabolismo , Teoria Quântica , Zinco/metabolismo , Sítios de Ligação , Humanos , Filogenia , Conformação Proteica
14.
Eur J Neurol ; 28(2): 609-619, 2021 02.
Artigo em Inglês | MEDLINE | ID: mdl-33090613

RESUMO

BACKGROUND AND PURPOSE: Spinal muscular atrophy (SMA) is the most important cause of motor neuron disease in childhood, and continues to represent the leading genetic cause of infant death. Adulthood-onset SMA (SMA type 4) is rare, with few isolated cases reported. The objective of the present study was to describe a cohort of patients with SMA type 4. METHODS: A cross-sectional study was conducted to characterize clinical, genetic, radiological and neurophysiological features of patients with adulthood-onset SMA. Correlation analysis of functional assessment with genetic, radiological and neurophysiological data was performed. RESULTS: Twenty patients with SMA type 4 were identified in a Brazilian cohort of 227 patients with SMA. The most common clinical symptom was limb-girdle muscle weakness, observed in 15 patients (75%). The most frequent neurological findings were absent tendon reflexes in 18 (90%) and fasciculations in nine patients (45%). Sixteen patients (80%) had the homozygous deletion of exon 7 in the SMN1 gene, with 12 patients (60%) showing four copies of the SMN2 gene. The functional scales Hammersmith Functional Motor Scale Expanded, Amyotrophic Lateral Sclerosis Functional Rating Scale Revised, Revised Upper Limb Module and Spinal Muscular Atrophy Functional Rating Scale, as well as the six-minute walk and the Time Up and Go tests showed a correlation with duration of disease. Motor Unit Number Index was correlated both with duration of disease and with performance in functional assessment. Radiological studies exhibited a typical pattern, with involvement of biceps femoris short head and gluteus minimus in all patients. CONCLUSION: This study represents the largest cohort of patients with SMA type 4 and provides functional, genetic, radiological and neurophysiological features that can be used as potential biomarkers for the new specific genetic therapies for SMA.


Assuntos
Atrofia Muscular Espinal , Adulto , Estudos Transversais , Éxons , Homozigoto , Humanos , Lactente , Atrofia Muscular Espinal/diagnóstico por imagem , Atrofia Muscular Espinal/genética , Deleção de Sequência
15.
Appetite ; 156: 104957, 2021 01 01.
Artigo em Inglês | MEDLINE | ID: mdl-32920084

RESUMO

The aim of present study was two-fold: i) to translate and adapt the Regulation of Eating Behavior Scale to Portuguese (REBSp), and ii) to analyze its psychometrics properties (factorial validity with gender invariance analyses, reliability and construct validity). The study sample was composed by 471 Portuguese participants (68.4% females) with a mean age of 30.5 years (SD = 11.2). Structural equation modeling was used to verify the psychometric properties of the scale using SPSS v. 23.0 and AMOS 24.0 software. The analysis showed that the Portuguese 24-item scale presented a good fit, achieving good reliability and convergent validity. Some issues arose with discriminant validity within autonomous and controlled regulations, discussed in light of the simplex pattern expected by self-determination theory literature. Additionally, the scale presented concurrent validity and evidence of gender measurement invariance. Latent mean analysis between genders showed that women presented higher means for intrinsic motivation and integrated regulation when compared to men. In conclusion, analyses suggest that the 24-item Portuguese version of REBS can be used safely to assess the eating regulation in both genders.


Assuntos
Comportamento Alimentar , Adulto , Feminino , Humanos , Masculino , Portugal , Psicometria , Reprodutibilidade dos Testes , Inquéritos e Questionários
16.
Percept Mot Skills ; 127(5): 891-911, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-32460614

RESUMO

This study analyzed independent and codependent effects of task- and ego-involving motivational climates on basic psychological need satisfaction and behavioral regulation (i.e., autonomous and controlled motivation) among young athletes. Participants were young Portuguese female (n = 114) and male (n = 324) swimmers, nested within four different clubs. Participants completed a multisection survey, assessing motivational climates, basic psychological needs satisfaction, and behavioral regulation. We used polynomial regression analysis with surface response methodology to analyze the interactions between these constructs. We found that perceived task- and ego-involving motivational climates were not mutually exclusive; rather, their relationship depended on how athletes perceived coaches' behaviors and how coaches emphasized one or both climates. Coaches who fostered both motivational climates promoted positive outcomes among male (but not female) athletes.


Assuntos
Atletas/psicologia , Motivação , Satisfação Pessoal , Meio Social , Esportes/psicologia , Natação/psicologia , Adolescente , Feminino , Humanos , Masculino , Tutoria , Fatores Sexuais , Inquéritos e Questionários , Adulto Jovem
17.
Eur J Sport Sci ; 20(5): 660-669, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-31578934

RESUMO

Objective: The main objective of the present study was to examine the associations between coach-created task-involving climate and athletes' intentions to continue practicing sport, through a serial mediation analysis that included basic psychological needs satisfaction (BPN), self-determined motivation (SDM) and enjoyment. Methods: Seven-hundred and ninety-nine elite swimmers (450 males, 349 females; aged 12-22 years, M = 16.65, SD = 2.83) participated in the present study. Groups were created according to age, years of experience, and gender. Results: Serial mediation analysis provided support for the proposed model where BPN's and enjoyment represent the most important mediators between task-involving climate and athletes' intentions to continue sport practice. Conclusion: Enjoyment stands out as the most relevant predictor of intention to persist and as a significant mediator in the relation between task-involvement climate, BPN, SDM, and long-term sports practice. The task-involving climate created by coaches appears to set in motion a sequence where the satisfaction of basic needs and SDM lead to more enjoyment and increased persistence among young athletes.


Assuntos
Atletas/psicologia , Tutoria/métodos , Motivação , Autonomia Pessoal , Prazer , Natação/psicologia , Adolescente , Adulto , Criança , Feminino , Humanos , Masculino , Análise de Mediação , Inquéritos e Questionários , Adulto Jovem
18.
Med Oral Patol Oral Cir Bucal ; 24(5): e577-e582, 2019 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-31433386

RESUMO

BACKGROUND: The aim of this retrospective, cross-sectional and observational study was to perform a survey of the stomatological conditions of elderly patients seen in a period of 40 years at a Stomatology Service in Southern Brazil. MATERIAL AND METHODS: A total of 24,347 medical records were reviewed, of which 5,063 belonged to elderly patients aged 60 to 97 years. The stomatological conditions, systemic conditions, and smoking and alcohol drinking habits as well were recorded. RESULTS: The mean age of the patients was 69.29 years, 67.1% were female and 32.9% were male. Variations of normality accounted for 44.5% of the cases. The most prevalent disorders were fungal infections (26.1%), reactive inflammatory lesions (24.6%), burning mouth syndrome (14.9%), benign neoplasms (12.4%), autoimmune disorders (12.3%), premalignant lesions (10.2%) and malignant epithelial neoplasms (7.2%). Regarding biopsied lesions, squamous cell carcinoma was the most prevalent at 30.2%, followed by hyperplasic lesions (28.2%). CONCLUSIONS: Knowledge of these physiological and pathological conditions in the oral cavity of the older people is essential for early diagnosis and preventive and therapeutic measures when necessary.


Assuntos
Neoplasias Bucais , Medicina Bucal , Idoso , Idoso de 80 Anos ou mais , Brasil , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos
19.
Theriogenology ; 99: 124-133, 2017 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-28708493

RESUMO

The effect of FSH supplementation on an enriched cultured medium containing insulin (10 ng/mL) and EGF (50 ng/mL) was investigated on in vitro culture of equine ovarian biopsy tissue. Ovarian tissue fragments were collected from mares (n = 10) and distributed in the following treatments: noncultured control, cultured control, and cultured + FSH. Both treated groups were cultured for 7 or 15 days. The end points evaluated were: follicular morphology, estradiol levels in the culture medium, fluorescence intensity for TUNEL, EGFR and Ki-67 detection, and gene expression of GDF-9, BMP-15, and Cyclin-D2 in the ovarian tissue. After seven days of culture, medium supplemented with FSH had a similar (P > 0.05) percentage of morphologically normal follicles compared to the noncultured control group. Estradiol levels increased (P < 0.05) from Day 7 to Day 15 of culture for both treated groups. No difference (P > 0.05) was observed for TUNEL and EGFR intensity between the noncultured control group and the treated groups after 15 days of culture. Ki-67 intensity did not differ (P > 0.05) between treated groups after 15 days of culture, but decreased (P < 0.05) when compared with the noncultured control group. Similar (P > 0.05) mRNA expression for GDF-9, BMP-15, and Cyclin-D2 was observed among all treatments after 15 days of culture. In conclusion, an enriched medium supplemented or not with FSH was able to maintain the functionality of equine ovarian biopsy tissue after a long-term in vitro culture.


Assuntos
Fator de Crescimento Epidérmico/farmacologia , Hormônio Foliculoestimulante/farmacologia , Cavalos/fisiologia , Insulina/farmacologia , Ovário/efeitos dos fármacos , Técnicas de Cultura de Tecidos/veterinária , Animais , Biópsia , Meios de Cultura , Esquema de Medicação , Fator de Crescimento Epidérmico/administração & dosagem , Feminino , Hormônio Foliculoestimulante/administração & dosagem , Regulação da Expressão Gênica/efeitos dos fármacos , Fator 9 de Diferenciação de Crescimento/metabolismo , Insulina/administração & dosagem , Ovário/patologia , RNA Mensageiro/genética , RNA Mensageiro/metabolismo
20.
Int J Parasitol ; 47(10-11): 655-665, 2017 09.
Artigo em Inglês | MEDLINE | ID: mdl-28606698

RESUMO

The genomic sequences of 20 Leishmania infantum isolates collected in northeastern Brazil were compared with each other and with the available genomic sequences of 29 L. infantum/donovani isolates from Nepal and Turkey. The Brazilian isolates were obtained in the early 1990s or since 2009 from patients with visceral or non-ulcerating cutaneous leishmaniasis, asymptomatic humans, or dogs with visceral leishmaniasis. Two isolates were from the blood and bone marrow of the same visceral leishmaniasis patient. All 20 genomic sequences display 99.95% identity with each other and slightly less identity with a reference L. infantum genome from a Spanish isolate. Despite the high identity, analysis of individual differences among the 32 million base pair genomes showed sufficient variation to allow the isolates to be clustered based on the primary sequence. A major source of variation detected was in chromosome somy, with only four of the 36 chromosomes being predominantly disomic in all 49 isolates examined. In contrast, chromosome 31 was predominantly tetrasomic/pentasomic, consistent with its regions of synteny on two different disomic chromosomes of Trypanosoma brucei. In the Brazilian isolates, evidence for recombination was detected in 27 of the 36 chromosomes. Clustering analyses suggested two populations, in which two of the five older isolates from the 1990s clustered with a majority of recent isolates. Overall the analyses do not suggest individual sequence variants account for differences in clinical outcome or adaptation to different hosts. For the first known time, DNA of isolates from asymptomatic subjects were sequenced. Of interest, these displayed lower diversity than isolates from symptomatic subjects, an observation that deserves further investigation with additional isolates from asymptomatic subjects.


Assuntos
Doenças do Cão/parasitologia , Leishmania infantum/genética , Leishmaniose Visceral/veterinária , Animais , DNA de Protozoário/genética , Doenças do Cão/epidemiologia , Cães , Variação Genética , Genoma de Protozoário , Humanos , Leishmaniose Visceral/epidemiologia , Leishmaniose Visceral/parasitologia , Polimorfismo de Nucleotídeo Único
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