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1.
J Pers Assess ; 106(3): 361-371, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-37594306

RESUMO

Moral Foundations Theory proposes that five innate modules offer an intuitive response that drives our moral judgments. Various instruments were developed to measure the five moral foundations, including the MFV and the MFQ-30 which focus on deliberative moral reasoning. This approach is limited because intuitions are more basic and affect-laden. The Moral Foundations Sacredness Scale (MFSS) was designed to elicit responses that more closely resemble these phenomena. However, studies have not converged on a factorial structure for the MFSS, and measurement invariance has never been assessed. Our study sought to evaluate these properties across four adult samples, via Exploratory Structural Equation Modeling, and the associations between the MFSS's scales and relevant constructs. We found that a two-factor solution, reflecting the individualizing and binding foundations, had a reasonable fit, and had invariance (configural, metric, and scalar) across gender, age groups, and (configural) four international samples. The scales were reliable, had construct validity with the MFQ-30, and criterion-related validity with the binding moderately predicting belief in God/spirit and religious behaviors. The convergence we found regarding the MFSS's factorial structure across groups has important implications for the dimensionality of these constructs, and - ultimately - for the development of Moral Foundations Theory.


Assuntos
Julgamento , Princípios Morais , Adulto , Humanos , Resolução de Problemas
2.
J Vasc Bras ; 23: e20230150, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38803656

RESUMO

Persistent double dorsal aorta is an extremely rare congenital anomaly, with only 13 cases published to date. The objective of this study is to present this embryological variant as observed in the abdominal aorta of a patient. The anatomical description was written up on the basis of a review of electronic medical records and imaging exams. The patient in this case was an elderly 79-year-old man who presented at emergency with pain at rest in the left lower limb. He was admitted and laboratory tests and imaging exams were ordered. The variation was an imaging finding observed on angiotomography, consisting of complete separation of the abdominal aorta into two portions - a ventral and a dorsal, with different calibers - at the level of the third lumbar vertebra. There was also an anomalous origin of the inferior mesenteric artery.

3.
BMC Nephrol ; 24(1): 162, 2023 06 07.
Artigo em Inglês | MEDLINE | ID: mdl-37286965

RESUMO

BACKGROUND: The exact optimal timing of dialysis for ESKD patients remains unknown. This study systematically reviewed the available evidence with regard to the optimal initiation of maintenance dialysis in ESKD patients. METHODS: An electronic search was performed in Embase, PubMed and the Cochrane Library in order to find studies investigating associations between variables reference to "start of dialysis" and outcomes. Quality assessment and bias assessment were performed by the Newcastle-Ottawa scale and the ROBINSI tool. Due to the heterogeneity of studies, a meta-analysis could not be performed. RESULTS: Thirteen studies were included; four studies included only haemodialysis patients, three peritoneal dialysis, six both; study outcomes included mortality, cardiovascular events, technique failure, quality of life and others. Nine studies mainly focused on the optimal GFR of maintenance dialysis initiation; five studies showed none association between GFR and mortality or other adverse outcomes, two studies showed dialysis initiation at higher GFR levels were with poor prognosis, and 2 studies showed higher GFR levels with better prognosis. Three studies paid attention to comprehensive assessment of uremic signs and/or symptoms for optimal dialysis initiation; uremic burden based on 7 uremic indicators (hemoglobin, serum albumin, blood urea nitrogen, serum creatinine, potassium, phosphorus, and bicarbonate) were not associated with mortality; another equation (combination of sex, age, serum creatinine, blood urea nitrogen, serum albumin, haemoglobin, serum phosphorus, diabetes mellitus, and heart failure) based on fuzzy mathematics to assess the timing of haemodialysis initiation was accuracy to prognose 3-year survival; the third study found that volume overload or hypertension was associated with the highest risk for subsequent mortality. Two studies compared urgent or optimal start in dialysis, a study reported increased survival in optimal start patients, another reported no differences between Urgent-Start-PD and Early-Start-PD regarding 6-month outcomes. LIMITATIONS: Heterogeneity among the studies was quite high, with differences in sample size, variable and group characteristics; no RCT studies were included, which weakened the strength of evidences. CONCLUSIONS: The criteria for dialysis initiation were varied. Most studies proved that GFR at dialysis initiation was not associated with mortality, timing of dialysis initiation should not be based on GFR, assessments of volume load and patient's tolerance to volume overload are prospective approaches.


Assuntos
Falência Renal Crônica , Diálise Peritoneal , Humanos , Diálise Renal/métodos , Creatinina , Qualidade de Vida , Falência Renal Crônica/terapia , Taxa de Filtração Glomerular
4.
J Res Adolesc ; 33(3): 973-985, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-37073453

RESUMO

The present study overcomes the limited empirical evidence on the association between well-being and school engagement in times of adversity by exploiting available data from two large and comparable samples of eighth graders; one obtained prior to the COVID-19 pandemic and the second obtained during the pandemic. Results suggest that adolescents were less engaged with their learning context during the pandemic, as well as lower in positive and negative affect, but slightly more satisfied with life. Through SEM we found a stronger positive association between positive affect and school engagement in the COVID-19 group compared with the pre-COVID-19 group. This finding highlights the important role of positive affect in supporting better academic functioning in the aftermath of a global crisis.


Assuntos
COVID-19 , Pandemias , Adolescente , Humanos , Instituições Acadêmicas , Emoções
5.
J Pers Assess ; 105(1): 22-33, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-35298310

RESUMO

The Schwartz Model of Basic Values is an influential framework that describes what people find important and worth pursuing in life. The model proposes that ten human values are found cross-culturally, and so significant efforts have gone into empirically testing these claims. While instruments such as the Portrait Values Questionnaire-40 (PVQ-40) reliably discriminated the full set of theorized values, briefer versions have either suffered from a lack of construct validity (PVQ-21) or from not having been put through a rigorous statistical test of its underlying structure (Twenty Item Values Inventory [TwIVI]) via confirmatory factor analysis (CFA). The present study, using a Portuguese sample of adults (n = 524), is the first to examine the factorial structure of the TwIVI via CFA. We apply a magnifying glass approach by testing two separate models, each covering five values, which reflect the Growth and Self-protective dimensions. Moreover, we provide evidences that the TwIVI is reliable and capable of capturing the theorized quasi-circumplex structure, and the cross-cultural gender differences and relative hierarchical importance of values. Finally, we establish criterion-related validity, with values correlating with political identity and social and economic issues.


Assuntos
Reprodutibilidade dos Testes , Adulto , Humanos , Portugal , Inquéritos e Questionários , Análise Fatorial , Psicometria
6.
J Child Psychol Psychiatry ; 63(11): 1297-1307, 2022 11.
Artigo em Inglês | MEDLINE | ID: mdl-35167140

RESUMO

BACKGROUND: Clinicians increasingly serve youths from societal/cultural backgrounds different from their own. This raises questions about how to interpret what such youths report. Rescorla et al. (2019, European Child & Adolescent Psychiatry, 28, 1107) found that much more variance in 72,493 parents' ratings of their offspring's mental health problems was accounted for by individual differences than by societal or cultural differences. Although parents' reports are essential for clinical assessment of their offspring, they reflect parents' perceptions of the offspring. Consequently, clinical assessment also requires self-reports from the offspring themselves. To test effects of individual differences, society, and culture on youths' self-ratings of their problems and strengths, we analyzed Youth Self-Report (YSR) scores for 39,849 11-17 year olds in 38 societies. METHODS: Indigenous researchers obtained YSR self-ratings from population samples of youths in 38 societies representing 10 culture cluster identified in the Global Leadership and Organizational Behavioral Effectiveness study. Hierarchical linear modeling of scores on 17 problem scales and one strengths scale estimated the percent of variance accounted for by individual differences (including measurement error), society, and culture cluster. ANOVAs tested age and gender effects. RESULTS: Averaged across the 17 problem scales, individual differences accounted for 92.5% of variance, societal differences 6.0%, and cultural differences 1.5%. For strengths, individual differences accounted for 83.4% of variance, societal differences 10.1%, and cultural differences 6.5%. Age and gender had very small effects. CONCLUSIONS: Like parents' ratings, youths' self-ratings of problems were affected much more by individual differences than societal/cultural differences. Most variance in self-rated strengths also reflected individual differences, but societal/cultural effects were larger than for problems, suggesting greater influence of social desirability. The clinical significance of individual differences in youths' self-reports should thus not be minimized by societal/cultural differences, which-while important-can be taken into account with appropriate norms, as can gender and age differences.


Assuntos
Individualidade , Pais , Criança , Adolescente , Humanos , Pais/psicologia , Autorrelato
7.
Cell Biol Int ; 46(11): 1947-1958, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-35998255

RESUMO

Lipophosphoglycan (LPG), the major Leishmania glycoconjugate, induces pro-inflammatory/immunosuppressive innate immune responses. Here, we evaluated functional/biochemical LPG properties from six Leishmania amazonensis strains from different hosts/clinical forms. LPGs from three strains (GV02, BA276, and LV79) had higher pro-inflammatory profiles for most of the mediators, including tumor necrosis factor alpha and interleukin 6. For this reason, glycoconjugates from all strains were biochemically characterized and had polymorphisms in their repeat units. They consisted of three types: type I, repeat units devoid of side chains; type II, containing galactosylated side chains; and type III, containing glucosylated side chains. No relationship was observed between LPG type and the pro-inflammatory properties. Finally, to evaluate the susceptibility against antileishmanial agents, two strains with high (GV02, BA276) and one with low (BA336) pro-inflammatory activity were selected for chemotherapeutic tests in THP-1 cells. All analyzed strains were susceptible to amphotericin B (AmB) but displayed various responses against miltefosine (MIL) and glucantime (GLU). The GV02 strain (canine visceral leishmaniasis) had the highest IC50 for MIL (3.34 µM), whereas diffuse leishmaniasis strains (BA276 and BA336) had a higher IC50 for GLU (6.87-12.19 mM). The highest IC50 against MIL shown by the GV02 strain has an impact on clinical management. Miltefosine is the only drug approved for dog treatment in Brazil. Further studies into drug susceptibility of L. amazonensis strains are warranted, especially in areas where dog infection by this species overlaps with those caused by Leishmania infantum.


Assuntos
Anfotericina B , Leishmania , Anfotericina B/farmacologia , Animais , Cães , Glicoesfingolipídeos , Interleucina-6 , Leishmania/genética , Antimoniato de Meglumina/farmacologia , Camundongos , Camundongos Endogâmicos BALB C , Fosforilcolina/análogos & derivados , Fator de Necrose Tumoral alfa
8.
Exp Parasitol ; 242: 108367, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-36055388

RESUMO

Gold nanorods (GNRs) are increasingly being studied for diagnostic and therapeutic purposes. Green synthesis based methods with natural compounds as additives stand out as a hope in terms of better synthesis methodology, with advantages of producing potentially less toxic and, perhaps, biologically active GNRs due to influence of natural additives used during synthesis. Exploring green chemistry using different natural phenolic compounds, the present work reveals different in vitro activity of GNRs evaluated against different parasites that causes skin infectious diseases compared to GNRs produced by convencional seed mediated method. This approach brings advantages in producing active GNRs, with ease calling, less cytotoxic and with a better selectivity index (SI) than GNRs synthesized by conventional seed mediated synthesis, opening new possibilities for therapies. Natural compounds used in green syntheses were gallic acid (GA), resveratrol (RSV) and a purified fraction of the hydroalcoholic extract of Stryphnodendron obovatum. GNRs exhibited great activity against Leishmania braziliensis, and the dermatophytes Tricophyton rubrum, T. interdigitale and Microsporum gypseum. The anti-Leishmania and antidermatophytic activity of GNRs reinforce the applicability of GNRs in biomedical field and the influence of synthesis method in biological activity, showing benefits related to the seedless synthesis with natural compounds. In addition, these preliminary results indicate the possibility of exploring at maximum the physical and chemical properties of GNRs in addition to the biological activity itself, such as the development of topical antiparasitic formulations for association with phototherapy.


Assuntos
Ouro , Nanotubos , Ouro/química , Resveratrol , Ácido Gálico/farmacologia , Antiparasitários
9.
Mem Inst Oswaldo Cruz ; 117: e210403, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35320824

RESUMO

Despite the increasing number of manuscripts describing potential alternative antileishmanial compounds, little is advancing on translating these knowledges to new products to treat leishmaniasis. This is in part due to the lack of standardisations during pre-clinical drug discovery stage and also depends on the alignment of goals among universities/research centers, government and pharmaceutical industry. Inspired or not by drug repurposing, metal-based antileishmanial drugs represent a class that deserves more attention on its use for leishmaniasis chemotherapy. Together with new chemical entities, progresses have been made on the knowledge of parasite-specific drug targets specially after using CRISPR/Cas system for functional studies. In this regard, Leishmania parasites undergoe post-translational modification as key regulators in several cellular processes, which represents an entire new field for drug target elucidation, once this is poorly explored. This perspective review describes the advances on antileishmanial metallodrugs and the elucidation of drug targets based on post-translational modifications, highlighting the limitations on the drug discovery/development process and suggesting standardisations focused on products addressed to who need it most.


Assuntos
Antiprotozoários , Leishmania , Leishmaniose , Antiprotozoários/química , Descoberta de Drogas , Humanos , Leishmaniose/tratamento farmacológico , Processamento de Proteína Pós-Traducional
10.
Environ Toxicol ; 37(9): 2244-2258, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-35661388

RESUMO

Citrate functionalized iron oxide nanoparticles (IONPs) are employed for various purposes-including environmental remediation but the interaction of IONPs with aquatic contaminants is poorly understood. Among those, glyphosate-based herbicides are toxic and affect target organs such as the liver. Evaluations of livers of female Poecilia reticulata by exposures to IONPs at a concentration of 0.3 mg/L were performed with association to: (1) 0.65 mg of glyphosate per litter and (2) 1.3 mg of glyphosate per litter of Roundup Original, and (3) glyphosate P.A at 0.65 mg/L. These associations were carried out progressively, after 7, 14, and 21 days. We detected circulatory disturbances, inflammatory responses, activation of the immune system, regressive changes, and progressive responses with changes in the connective tissue and decreased glycogen reserve from days 14 to 21. Ultrastructural changes in the Disse space and microvilli of hepatocytes indicated decreased contact surface area. In general, the damage was time and concentration dependent, increasing from 7 to 14 days and tending to stabilize from 14 to 21 days. Therefore, herbicide-associated IONPs functioned as xenobiotics inducing intense cellular detoxification processes and activation of hepatic immune responses.


Assuntos
Herbicidas , Poecilia , Animais , Feminino , Glicina/análogos & derivados , Herbicidas/toxicidade , Fígado , Nanopartículas Magnéticas de Óxido de Ferro , Poecilia/fisiologia , Glifosato
11.
J Nurs Manag ; 30(8): 3736-3742, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-36216773

RESUMO

AIM: The article aims to outline a contrast between three priorities for nursing management proposed a decade ago and key features of the following 10 years of developments on artificial intelligence for health care and nursing management. This analysis intends to contribute to update the international debate on bridging the essence of health care and nursing management priorities and the focus of artificial intelligence developers. BACKGROUND: Artificial intelligence research promises innovative approaches to supporting nurses' clinical decision-making and to conduct tasks not related to patient interaction, including administrative activities and patient records. Yet, even though there has been an increase in international research and development of artificial intelligence applications for nursing care during the past 10 years, it is unclear to what extent the priorities of nursing management have been embedded in the devised artificial intelligence solutions. EVALUATION: Starting from three priorities for nursing management identified in 2011 in a special issue of the Journal Nursing Management, we went on to identify recent evidence concerning 10 years of artificial intelligence applications developed to support health care management and nursing activities since then. KEY ISSUE: The article discusses to what extent priorities in health care and nursing management may have to be revised while adopting artificial intelligence applications or, alternatively, to what extent the direction of artificial intelligence developments may need to be revised to contribute to long acknowledged priorities of nursing management. CONCLUSION: We have identified a conceptual gap between both sets of ideas and provide a discussion on the need to bridge that gap, while admitting that there may have been recent field developments still unreported in scientific literature. IMPLICATIONS FOR NURSING MANAGEMENT: Artificial intelligence developers and health care nursing managers need to be more engaged in coordinating the future development of artificial intelligence applications with a renewed set of nursing management priorities.


Assuntos
Inteligência Artificial , Cuidados de Enfermagem , Humanos , Atenção à Saúde
12.
J Vasc Bras ; 21: e20220016, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35975182

RESUMO

Background: Peripheral artery disease (PAD) has high prevalence and is associated with high risk of cardiovascular events. Surgical or endovascular intervention is necessary in chronic limb-threatening ischemia. Objectives: To evaluate the distribution of open and endovascular revascularizations in different regions of Brazil, analyzing the health system costs and mortality related to these procedures. Methods: A descriptive, cross-sectional, observational, epidemiological study was carried out to evaluate open and endovascular surgeries performed on the SUS public healthcare system in Brazil, from 2010 to 2020. Data were collected from the SUS Department of Informatics (Datasus). Results: Over the period analyzed, 83,218 admissions for open and endovascular surgeries were registered, with a total cost of R$ 333,989,523.17. There were more hospital admissions for percutaneous procedures (56,132) than for conventional surgery (27,086). Most of the procedures (83%) were performed in the country's Southeast and South regions, while the North region had the lowest number of procedures. Over the period evaluated, there was a decreasing trend for open procedures and an increasing trend for endovascular procedures. The average hospital stay was shorter for endovascular procedures (5.3 days) than for open surgery (10.2 days). The analysis of mortality related to these procedures revealed a higher rate of in-hospital mortality associated with open revascularization than with endovascular (5.24% vs. 1.56%). Conclusions: Endovascular techniques constituted the primary approach for revascularization treatment in critical limb-threatening ischemia, with a lower in-hospital mortality rate and shorter hospital stay when compared to open surgeries.

13.
Child Psychiatry Hum Dev ; 52(5): 856-868, 2021 10.
Artigo em Inglês | MEDLINE | ID: mdl-32989577

RESUMO

Recent research indicates that adaptive functioning and well-being depends on the integration of three dissociable systems of learning and memory that regulate associative conditioning, intentionality and self-awareness. Our study objective was to describe how different integrated configurations of these systems (i.e. different expressions of personality) relate to the presence of internalizing, externalizing and total problems. In total, 699 adolescents completed the JTCI and Achenbach's YSR. Latent profile analyses revealed two temperament profiles and six character profiles. Adolescents with a steady temperament, and those with healthy characters, were significantly less likely to present clinical levels of problems. The integration of a steady temperament and healthy character profiles in a Mature-Steady joint temperament-character network was also associated with significantly less clinical problems. In sum, our person-centered study indicates that adaptive expressions of associative conditioning, intentionality, and self-awareness (i.e. integrated personalities) are critical for mental health.


Assuntos
Caráter , Temperamento , Adolescente , Emoções , Humanos , Análise de Classes Latentes , Inventário de Personalidade
14.
Artigo em Inglês | MEDLINE | ID: mdl-32284386

RESUMO

The treatment of dogs naturally infected with Leishmania infantum using meglumine antimoniate (MA) encapsulated in conventional liposomes (LC) in association with allopurinol has been previously reported to promote a marked reduction in the parasite burden in the main infection sites. Here, a new assay in naturally infected dogs was performed using a novel liposome formulation of MA consisting of a mixture of conventional and long-circulating (PEGylated) liposomes (LCP), with expected broader distribution among affected tissues of the mononuclear phagocyte system. Experimental groups of naturally infected dogs were as follows: LCP plus Allop, receiving LCP intravenously as 2 cycles of 6 doses (6.5 mg Sb/kg of body weight/dose) at 4-day intervals plus allopurinol at 30 mg/kg/12 h per os (p.o.) during 130 days (LCP+Allop); LC plus Allop, receiving LC intravenously as 2 cycles of 6 doses (6.5 mg Sb/kg/dose) plus allopurinol during 130 days (LC+Allop); Allop, treated with allopurinol only; and a nontreated control. Parasite loads were evaluated by quantitative PCR in liver, spleen, and bone marrow tissue and by immunohistochemistry in the ear skin, before treatment, just after treatment, and 4 months later. The LCP+Allop and LC+Allop groups, but not the Allop group, showed significant suppression of the parasites in the liver, spleen, and bone marrow 4 months after treatment compared to the pretreatment period or the control group. Only LCP+Allop group showed significantly lower parasite burden in the skin in comparison to the control group. On the basis of clinical staging and parasitological evaluations, the LCP formulation exhibited a more favorable therapeutic profile than the LC one, being therefore promising for the treatment of canine visceral leishmaniasis.


Assuntos
Antiprotozoários , Doenças do Cão , Leishmania infantum , Leishmaniose Visceral , Compostos Organometálicos , Alopurinol/uso terapêutico , Animais , Antiprotozoários/uso terapêutico , Doenças do Cão/tratamento farmacológico , Cães , Leishmaniose Visceral/tratamento farmacológico , Leishmaniose Visceral/veterinária , Lipossomos/uso terapêutico , Meglumina/uso terapêutico , Antimoniato de Meglumina/uso terapêutico , Compostos Organometálicos/uso terapêutico , Polietilenoglicóis/uso terapêutico
15.
Opt Lett ; 45(22): 6230-6233, 2020 Nov 15.
Artigo em Inglês | MEDLINE | ID: mdl-33186957

RESUMO

A beam shaping approach has been implemented to realize high-performance waveguide crossings based on cosine tapers. Devices with a compact footprint of 4.7µm×4.7µm were fabricated on the GLOBALFOUNDRIES 45 nm monolithic silicon photonics platform (45 CLO technology). Fabricated devices are found to be nearly wavelength independent (±0.035dB for 1260nm≤λ≤1360nm) with low insertion loss (∼0.2dB) and crosstalk (-35dB). The measured response of the devices is consistent with the three-dimensional finite-difference time-domain simulation results. The design stability is validated by measuring the device insertion loss on eight chips, which is found to be 0.197±0.017dB at the designed center wavelength of 1310 nm.

16.
J Oral Pathol Med ; 49(3): 201-209, 2020 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-31479540

RESUMO

Orofacial clefts are facial malformations caused by the improper development of the lips and palate. Many genetic and epigenetic molecules have been involved in the mechanisms of orofacial clefts, one of which are miRNAs. This systematic review aimed to identify miRNAs associated to non-syndromic orofacial clefts in humans. After applying a series of criteria, four studies were selected for analysis. In total, one hundred miRNAs were observed in the literature, of which 57 were reported as upregulated and 43 as downregulated in all orofacial cleft classifications. Moreover, nine miRNAs were differentially expressed only in cleft palate patients, which might suggest distinct regulatory mechanisms for the etiology of cleft lips and palates. We suggest broader population sampling in order to include diverse ethnic groups in the future, as well as analyses toward identifying miRNA target genes and pathways. We highlight the need for experimental validation and of these results to allow further translational approaches and clinical applications.


Assuntos
Fenda Labial/genética , Fissura Palatina/genética , MicroRNAs/genética , Biomarcadores , Humanos
17.
Parasitol Res ; 119(7): 2263-2274, 2020 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-32462293

RESUMO

Leishmaniasis is responsible for approximately 65,000 annual deaths. Despite the mortality data, drugs available for the treatment of patients are insufficient and have moderate therapeutic efficacy in addition to serious adverse effects, which makes the development of new drugs urgent. To achieve this goal, the integration of kinetic and DSF assays against parasitic validated targets, along with phenotypic assays, can help the identification and optimization of bioactive compounds. Pteridine reductase 1 (PTR1), a validated target in Leishmania sp., is responsible for the reduction of folate and biopterin to tetrahydrofolate and tetrahydrobiopterin, respectively, both of which are essential for cell growth. In addition to the in vitro evaluation of 16 thiazolidine-2,4-dione derivatives against Leishmania major PTR1 (LmPTR1), using the differential scanning fluorimetry (ThermoFluor®), phenotypic assays were employed to evaluate the compound effect over Leishmania braziliensis (MHOM/BR/75/M2903) and Leishmania infantum (MHOM/BR/74/PP75) promastigotes viability. The ThermoFluor® results show that thiazolidine-2,4-dione derivatives have micromolar affinity to the target and equivalent activity on Leishmania cells. 2b is the most potent compound against L. infantum (EC50 = 23.45 ± 4.54 µM), whereas 2a is the most potent against L. braziliensis (EC50 = 44.16 ± 5.77 µM). This result suggests that lipophilic substituents on either-meta and/or-para positions of the benzylidene ring increase the potency against L. infantum. On the other hand, compound 2c (CE50 = 49.22 ± 7.71 µM) presented the highest selectivity index.


Assuntos
Antiprotozoários/farmacologia , Leishmania braziliensis/efeitos dos fármacos , Leishmania infantum/efeitos dos fármacos , Tiazolidinedionas/farmacologia , Animais , Antiprotozoários/química , Humanos , Leishmania braziliensis/enzimologia , Leishmania infantum/enzimologia , Oxirredutases/antagonistas & inibidores , Testes de Sensibilidade Parasitária , Tiazolidinedionas/química
18.
J Pers Assess ; 102(3): 357-369, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-31012739

RESUMO

Research is scant concerning the developmental aspects of trait reactance. If measures are not validated for use across different age groups, it is difficult for researchers to investigate the specificities of reactance across the life span. So far, the factor structure and psychometric properties of the Hong Psychological Reactance Scale (HPRS) have not been tested in adolescents. In Study 1, using data from 1,301 Portuguese adolescents (M = 14.8 years), we conducted a confirmatory factor analysis to test a series of competing factor models. Post hoc modifications resulted in a bifactor model with acceptable fit. Bifactor statistical indexes showed that HPRS scores are unidimensional. Path analysis via structural equation modeling indicated HPRS scores were strongly related to scores from another measure of trait reactance. Study 2, using an independent sample of 327 Portuguese adolescents (M = 14.2 years), supported modeling the HPRS with a bifactor model. Finally, our results indicated HPRS scores were negatively correlated with indicators of emotional and cognitive well-being, supporting a conceptualization of reactance as patterns of negative cognitions and negative affect. Overall, this study indicates the HPRS is an appropriate measure for assessing trait reactance in adolescents.


Assuntos
Emoções/fisiologia , Modelos Psicológicos , Personalidade/fisiologia , Adolescente , Cognição/fisiologia , Análise Fatorial , Feminino , Humanos , Masculino , Determinação da Personalidade , Psicometria
19.
J Pers Assess ; 102(5): 604-615, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-31652084

RESUMO

Resistance to change (RTC) is the tendency to have a negative attitude toward change. It is a relevant construct in adolescence because change can be perceived as a challenge to the formation of an integrated independent identity: the primary developmental task of this period. Currently, there are no validated measures of RTC for adolescents. To address this research gap, we tested the psychometric properties of the Resistance to Change Scale in a sample of adolescents from Portugal. Confirmatory factor analyses supported modeling the RTC scale via a bifactor model. Statistical indices indicated that RTC scale scores were largely unidimensional. When this model was applied, RTC was positively related with trait reactance, negatively related with wellbeing, and linked to high Harm Avoidance and low Self-Directedness personality dimensions. The bifactor model was equivalent across gender and early vs. late adolescent groups. Our findings suggest that the RTC scale is a psychometrically sound and potentially useful tool for researchers and educators who wish to measure RTC in adolescents.


Assuntos
Comportamento do Adolescente , Satisfação Pessoal , Personalidade , Psicometria/normas , Adolescente , Análise Fatorial , Feminino , Humanos , Masculino , Portugal
20.
J Clin Child Adolesc Psychol ; 48(4): 596-609, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-29364720

RESUMO

As societies become increasingly diverse, mental health professionals need instruments for assessing emotional, behavioral, and social problems in terms of constructs that are supported within and across societies. Building on decades of research findings, multisample alignment confirmatory factor analyses tested an empirically based 8-syndrome model on parent ratings across 30 societies and youth self-ratings across 19 societies. The Child Behavior Checklist for Ages 6-18 and Youth Self-Report for Ages 11-18 were used to measure syndromes descriptively designated as Anxious/Depressed, Withdrawn/Depressed, Somatic Complaints, Social Problems, Thought Problems, Attention Problems, Rule-Breaking Behavior, and Aggressive Behavior. For both parent ratings (N = 61,703) and self-ratings (N = 29,486), results supported aggregation of problem items into 8 first-order syndromes for all societies (configural invariance), plus the invariance of item loadings (metric invariance) across the majority of societies. Supported across many societies in both parent and self-ratings, the 8 syndromes offer a parsimonious phenotypic taxonomy with clearly operationalized assessment criteria. Mental health professionals in many societies can use the 8 syndromes to assess children and youths for clinical, training, and scientific purposes.


Assuntos
Pais/psicologia , Psicopatologia/métodos , Sociedades/normas , Adolescente , Criança , Feminino , Humanos , Masculino , Síndrome
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