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1.
J Happiness Stud ; 23(7): 3143-3160, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35645608

RESUMO

Cross-cultural assessment of affective well-being among adolescents has received scarce attention in positive psychological research. The present study investigated cross-cultural measurement invariance of the Scale of Positive and Negative Experience (SPANE) among adolescents from three countries (India, Poland, and Serbia). The sample included a total of 1080 adolescents (53.6% female; M age = 16.75, range = 15-19 years). Surveys were administered online in each country. Measurement invariance testing provided evidence for partial scalar invariance of the SPANE across cultures, with item "afraid" showing nonivariance across the three countries. Latent factor correlations between positive and negative emotions were stronger in Serbia compared to Poland and India. Positive emotions and life satisfaction had strong positive associations in all three countries (ranging from 0.68 to 0.75). The inverse correlations between negative emotions and life satisfaction were - 0.27, - 0.54, - 0.69 in India, Poland, and Serbia, respectively. Polish adolescents demonstrated the lowest levels of affective well-being, whereas Indian and Serbian adolescents did not differ substantially in levels of positive and negative emotions. The present study demonstrated that the SPANE is a reliable and useful tool for the assessment of positive and negative emotions among adolescents from different cultural settings. Supplementary Information: The online version contains supplementary material available at 10.1007/s10902-022-00521-6.

2.
J Pers ; 89(5): 1062-1080, 2021 10.
Artigo em Inglês | MEDLINE | ID: mdl-33829496

RESUMO

OBJECTIVES: We aimed to introduce, validate, and showcase the utility of a new construct: communal collective narcissism. METHOD: We conducted four studies, in which we developed a new scale for communal collective narcissism (Study 1, N = 856), tested the construct's unique predictions (Study 2, N = 276), examined its social relevance (Study 3, N = 250), and assessed its implications for intergroup outcomes (Study 4, N = 664). RESULTS: In Study 1, we verified the structural soundness of the Communal Collective Narcissism Inventory. In Study 2, we obtained evidence for a defining feature of communal collective narcissism, namely, that it predicts communal, but not agentic, ingroup-enhancement. In Study 3, we illustrated the social relevance of communal collective narcissism. Communal collective narcissists derogated outgroup members, if those outgroups threatened the ingroup and the threat targeted the ingroup's communion. Finally, in Study 4, we showed that communal collective narcissism predicts intergroup outcomes in the communal domain (e.g., humanitarian aid) better than agentic collective narcissism does, whereas agentic collective narcissism predicts intergroup outcomes in the agentic domain (i.e., preferences for military aggression) better than communal collective narcissism does. CONCLUSIONS: The construct of communal collective narcissism is conceptually and empirically distinct from classic (i.e., agentic) collective narcissism.


Assuntos
Agressão , Narcisismo , Humanos
3.
J Acoust Soc Am ; 150(1): 120, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-34340465

RESUMO

The approach proposed in this study includes methods specifically dedicated to the detection of allophonic variation in English. This study aims to find an efficient method for automatic evaluation of aspiration in the case of Polish second-language (L2) English speakers' pronunciation when whole words are analyzed instead of particular allophones extracted from words. Sample words including aspirated and unaspirated allophones were prepared by experts in English phonetics and phonology. The datasets created include recordings of words pronounced by nine native English speakers of standard southern British accent and 20 Polish L2 English users. Complete unedited words are treated as input data for feature extraction and classification algorithms such as k-nearest neighbors, naive Bayes method, long-short term memory, and convolutional neural network (CNN). Various signal representations, including low-level audio features, the so-called mid-term and feature trajectory, and spectrograms, are tested in the context of their usability for the detection of aspiration. The results obtained show high potential for an automated evaluation of pronunciation focused on a particular phonological feature (aspiration) when classifiers analyze whole words. Additionally, CNN returns satisfying results for the automated classification of words containing aspirated and unaspirated allophones produced by Polish L2 speakers.


Assuntos
Idioma , Multilinguismo , Teorema de Bayes , Aprendizado de Máquina , Fonética
4.
Int J Mol Sci ; 22(13)2021 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-34281195

RESUMO

Regulatory T cells (Tregs) exert a highly suppressive function in the immune system. Disturbances in their function predispose an individual to autoimmune dysregulation, with a predominance of the pro-inflammatory environment. Besides Foxp3, which is a master regulator of these cells, other genes (e.g., Il2ra, Ctla4, Tnfrsf18, Ikzf2, and Ikzf4) are also involved in Tregs development and function. Multidimensional Tregs suppression is determined by factors that are believed to be crucial in the action of Tregs-related genes. Among them, epigenetic changes, such as DNA methylation, tend to be widely studied over the past few years. DNA methylation acts as a repressive mark, leading to diminished gene expression. Given the role of increased CpG methylation upon Tregs imprinting and functional stability, alterations in the methylation pattern can cause an imbalance in the immune response. Due to the fact that epigenetic changes can be reversible, so-called epigenetic modifiers are broadly used in order to improve Tregs performance. In this review, we place emphasis on the role of DNA methylation of the genes that are key regulators of Tregs function. We also discuss disease settings that have an impact on the methylation status of Tregs and systematize the usefulness of epigenetic drugs as factors able to influence Tregs functions.


Assuntos
Metilação de DNA , Linfócitos T Reguladores/fisiologia , Antígeno CTLA-4/genética , Epigênese Genética , Fatores de Transcrição Forkhead/genética , Expressão Gênica , Regulação da Expressão Gênica , Proteína Relacionada a TNFR Induzida por Glucocorticoide/genética , Humanos , Fator de Transcrição Ikaros/genética , Subunidade alfa de Receptor de Interleucina-2/genética , Ativação Linfocitária/imunologia , Linfócitos T Reguladores/imunologia , Linfócitos T Reguladores/metabolismo
5.
Cytotherapy ; 22(11): 629-641, 2020 11.
Artigo em Inglês | MEDLINE | ID: mdl-32778404

RESUMO

BACKGROUND: In recent years, therapies with CD4+CD25highFoxP3+ regulatory T cells (Tregs) have been successfully tested in many clinical trials. The important issue regarding the use of this treatment in autoimmune conditions remains the specificity toward particular antigen, as because of epitope spread, there are usually multiple causative autoantigens to be regulated in such conditions. METHODS: Here we show a method of generation of Tregs enriched with antigen-reactive clones that potentially covers the majority of such autoantigens. In our research, Tregs were expanded with anti-CD28 and anti-CD154 antibodies and autologous monocytes and loaded with a model peptide, such as whole insulin or insulin ß chain peptide 9-23. The cells were then sorted into cells recognizing the presented antigen. The reactivity was verified with functional assays in which Tregs suppressed proliferation or interferon gamma production of autologous effector T cells (polyclonal and antigen-specific) used as responders challenged with the model peptide. Finally, we analyzed clonotype distribution and TRAV gene usage in the specific Tregs. RESULTS: Altogether, the applied technique had a good yield and allowed us to obtain a Treg product enriched with a specific subset, as confirmed in the functional tests. The product consisted of many clones; nevertheless, the content of these clones was different from that found in polyclonal or unspecific Tregs. CONCLUSIONS: The presented technique might be used to generate populations of Tregs enriched with cells reactive to any given peptide, which can be used as a cellular therapy medicinal product in antigen-targeted therapies.


Assuntos
Anticorpos/metabolismo , Antígenos CD28/metabolismo , Ligante de CD40/metabolismo , Monócitos/metabolismo , Linfócitos T Reguladores/imunologia , Animais , Proliferação de Células , Células Cultivadas , Células Clonais , Fatores de Transcrição Forkhead/metabolismo , Humanos , Interferon gama/metabolismo , Receptores de Antígenos de Linfócitos T/metabolismo
6.
J Pers ; 88(6): 1252-1267, 2020 12.
Artigo em Inglês | MEDLINE | ID: mdl-32557617

RESUMO

OBJECTIVES: The Dark Triad traits (i.e., narcissism, psychopathy, Machiavellianism) capture individual differences in aversive personality to complement work on other taxonomies, such as the Big Five traits. However, the literature on the Dark Triad traits relies mostly on samples from English-speaking (i.e., Westernized) countries. We broadened the scope of this literature by sampling from a wider array of countries. METHOD: We drew on data from 49 countries (N = 11,723; 65.8% female; AgeMean  = 21.53) to examine how an extensive net of country-level variables in economic status (e.g., Human Development Index), social relations (e.g., gender equality), political orientations (e.g., democracy), and cultural values (e.g., embeddedness) relate to country-level rates of the Dark Triad traits, as well as variance in the magnitude of sex differences in them. RESULTS: Narcissism was especially sensitive to country-level variables. Countries with more embedded and hierarchical cultural systems were more narcissistic. Also, sex differences in narcissism were larger in more developed societies: Women were less likely to be narcissistic in developed (vs. less developed) countries. CONCLUSIONS: We discuss the results based on evolutionary and social role models of personality and sex differences. That higher country-level narcissism was more common in less developed countries, whereas sex differences in narcissism were larger in more developed countries, is more consistent with evolutionary than social role models.


Assuntos
Maquiavelismo , Narcisismo , Afeto , Transtorno da Personalidade Antissocial , Feminino , Humanos , Masculino , Personalidade
7.
Pers Individ Dif ; 167: 110232, 2020 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-32834282

RESUMO

In a nationally representative sample from Poland (N = 755), we examined the relationships between the Dark Triad traits (i.e., psychopathy, Machiavellianism, and narcissism) and collective narcissism (i.e., agentic and communal) on the one hand, and behaviors related to the COVID-19 pandemic at (1) the zero-order level, at (2) the latent variance level, and (3) indirectly through health beliefs about the virus (i.e., the health belief model) on the other. We focused on preventive and hoarding behaviors as common reactions toward the pandemic. Participants characterized by the Dark Triad traits engaged less in prevention and more in hoarding, whereas those characterized by collective narcissism engaged in more hoarding only. Coronavirus-related health beliefs mediated patterns of prevention (fully) and hoarding (partially) in the latent Dark Triad (Dark Core) and collective narcissism. However, specific beliefs worked in opposite directions, resulting in a weak indirect effect for prevention and a null indirect effect for hoarding. The results point to the utility of health beliefs in predicting behaviors during the pandemic, explaining (at least in part) problematic behaviors associated with the dark personalities (i.e., Dark Triad, collective narcissism).

8.
Chemotherapy ; 64(3): 155-162, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31715597

RESUMO

Bendamustine is a cytostatic drug with a unique structure, combining the features of purine nucleoside analogs and alkylating agents. In patients with chronic lymphocytic leukemia (CLL) it is commonly used in combination with rituximab (BR protocol) both in the first-line as well as subsequent lines of therapy, and in clinical trials it is often combined with new targeted therapies. Therefore, the data on its real-life safety and efficacy are of clinical significance. As the Polish Lymphoma Research Group (PLRG), we retrospectively analyzed the efficacy and tolerability of bendamustine monotherapy in 96 patients with CLL. The median number of bendamustine cycles was 5, and 44 patients did not complete the planned 6 cycles (46%). Among the adverse events associated with the earlier termination of bendamustine treatment, infections were the most common (20.5%), followed by neutropenia (15.9%) and thrombocytopenia (15.9%). Dose reductions and/or delays occurred in 31% of treatment cycles (132 of 425) with neutropenia (17.9%) as the most frequent cause. Efficacy analysis showed an overall response rate of 88.2% with complete remission and partial remission achieved in 43.8 and 41.7% of patients, respectively. At the 24th month of follow-up, progression-free survival was 52% and overall survival was 69.7%. Bendamustine in monotherapy was found to be safe and efficacious, at least in terms of early response. Special attention should be paid to infectious complications, and especially that immune disorders are characteristic in the clinical course of CLL. Our observations suggest efforts must be made to ensure the proper timing and proper dose in the administration of the drug, and to avoid the premature termination of the treatment.


Assuntos
Cloridrato de Bendamustina/uso terapêutico , Leucemia Linfocítica Crônica de Células B/tratamento farmacológico , Idoso , Idoso de 80 Anos ou mais , Cloridrato de Bendamustina/efeitos adversos , Relação Dose-Resposta a Droga , Esquema de Medicação , Feminino , Humanos , Leucemia Linfocítica Crônica de Células B/mortalidade , Masculino , Pessoa de Meia-Idade , Neutropenia/etiologia , Estudos Retrospectivos , Taxa de Sobrevida , Trombocitopenia/etiologia , Resultado do Tratamento
9.
Int J Psychol ; 54(6): 722-730, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-30618045

RESUMO

This study examines factors related to willingness to host refugees. We examined the role of national attitudes (patriotism, nationalism), out-group attitudes (classic and modern prejudice), and zero-sum thinking: Belief in a Zero-Sum Game and psychological entitlement in attitudes towards hosting refugees. We proposed including zero-sum thinking as possible mediator between national attitudes and attitudes towards refugees based on assumption that nationalism is a competitive attitude towards out-groups, while patriotism does not. Structural equation modelling based on a Polish national sample (N = 1092) revealed that patriotism is positively associated with willingness to host refugees, through its negative association with prejudice via decreasing zero-sum thinking. Nationalism was negatively associated with willingness to host refugees, through prejudice via increasing zero-sum thinking. Findings are discussed in the context of current refugee policies.


Assuntos
Preconceito/psicologia , Refugiados/psicologia , Adulto , Atitude , Feminino , Humanos , Masculino , Adulto Jovem
10.
Int J Psychol ; 54(4): 439-447, 2019 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-29658135

RESUMO

The current study explores the problem with the lack of measurement invariance for the Narcissistic Personality Inventory (NPI) by addressing two issues: conceptual heterogeneity of narcissism and methodological issues related to the binary character of data. We examine the measurement invariance of the 13-item version of the NPI in three populations in Japan, Poland and the UK. Analyses revealed that leadership/authority and grandiose exhibitionism dimensions of the NPI were cross-culturally invariant, while entitlement/exploitativeness was culturally specific. Therefore, we proposed NPI-9 as indicating scalar invariance, and we examined the pattern of correlations between NPI-9 and other variables across three countries. The results suggest that NPI-9 is valid brief scale measuring general levels of narcissism in cross-cultural studies, while the NPI-13 remains suitable for research within specific countries.


Assuntos
Comparação Transcultural , Transtornos da Personalidade/psicologia , Psicometria/métodos , Adolescente , Adulto , Feminino , Humanos , Liderança , Masculino , Inventário de Personalidade , Reprodutibilidade dos Testes , Adulto Jovem
11.
Int J Psychol ; 54(3): 406-413, 2019 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-29193046

RESUMO

In this paper, we examined the psychometric properties of cross-cultural validation and replicability (i.e. measurement invariance) of the Belief in a Zero-Sum Game (BZSG) scale, measuring antagonistic belief about interpersonal relations over scarce resources. The factorial structure of the BZSG scale was investigated in student samples from 36 countries (N = 9907), using separate confirmatory factor analyses (CFAs) for each country. The cross-cultural validation of the scale was based on multigroup confirmatory factor analyses (MGCFA). The results confirmed that the scale had a one-factor structure in all countries, in which configural and metric invariance between countries was confirmed. As a zero-sum belief about social relations perceived as antagonistic, BZSG is an important factor related to, for example, social and international relations, attitudes toward immigrants, or well-being. The paper proposes different uses of the BZSG scale for cross-cultural studies in different fields of psychology: social, political, or economic.


Assuntos
Comparação Transcultural , Psicometria/métodos , Adulto , Medidas em Epidemiologia , Análise Fatorial , Feminino , Humanos , Internacionalidade , Masculino , Projetos de Pesquisa , Adulto Jovem
12.
Contemp Oncol (Pozn) ; 23(1): 1-6, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31061630

RESUMO

This review focuses on the role of regulatory T cells (Tregs) in the process of carcinogenesis. The controversy of this issue arose due to the increasing therapeutic use of Tregs in humans (inter alia, in the treatment of autoimmune diseases). It is mainly due to potential dangers related to immunosuppressive activity of these cells, especially regarding cancer. The natural function of regulatory T cells (which is the suppression of excessive activity of the immune system) is purportedly linked to an increased risk of cancer initiation. This work brings together and summarizes the most important reports of researchers dealing with this problem and attempts to explain doubts and fears related to Tregs and their uncertain connection with cancer initiation and progression. It is clearly shown that regulatory T cells are associated with acceleration of existing tumors (they are attracted by microenvironments created by cancer cells) but cannot initiate them on their own.

13.
Eur J Haematol ; 100(5): 465-474, 2018 May.
Artigo em Inglês | MEDLINE | ID: mdl-29427355

RESUMO

OBJECTIVES: PALG CLL4 is the first, randomized, phase IIIb study with rituximab, cladribine, and cyclophosphamide (RCC) induction and subsequent maintenance with rituximab in previously untreated chronic lymphocytic leukemia (CLL) patients. METHODS: The induction treatment consisted of 6 RCC cycles regimen. Patients with complete response (CR) or partial response (PR) after an induction phase were randomized into a maintenance arm with rituximab or an observational arm. RESULTS: In the intention-to-treat population, 97 patients completed the induction phase with an overall response rate (ORR) of 73.2% (CR 22.7%, PR 50.5%). Subsequently, 66 patients were randomized into the rituximab maintenance arm (n = 33) or the observational arm (n = 33). CR rates were 57.1% in the maintenance group vs 50% in the observational group. PFS was significantly longer in the rituximab maintenance vs the observational arm (P = .028). The multivariate Cox model indicated that del17p (P = .006) and elevated beta-2-microglobulin (P = .015) significantly increased the hazard ratio (HR) of progression, whereas the presence of CD38 (P = .013) significantly decreased it; maintenance therapy with rituximab (P < .0001) significantly decreased the HR of disease progression. CONCLUSIONS: The study confirmed the high efficacy and acceptable safety profile of induction therapy with RCC and maintenance therapy with rituximab in previously untreated patients with CLL.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Leucemia Linfocítica Crônica de Células B/tratamento farmacológico , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Biomarcadores , Cladribina/administração & dosagem , Ciclofosfamida/administração & dosagem , Feminino , Humanos , Imunofenotipagem , Estimativa de Kaplan-Meier , Leucemia Linfocítica Crônica de Células B/diagnóstico , Leucemia Linfocítica Crônica de Células B/mortalidade , Quimioterapia de Manutenção , Masculino , Estadiamento de Neoplasias , Prognóstico , Modelos de Riscos Proporcionais , Indução de Remissão , Rituximab/administração & dosagem , Resultado do Tratamento
14.
J Clin Psychol ; 74(10): 1742-1758, 2018 10.
Artigo em Inglês | MEDLINE | ID: mdl-29687455

RESUMO

OBJECTIVE: The purpose of the current study is to test the factorial structure of the Mental Health Continuum-Short Form (MHC-SF) in Asian population. METHOD: The study was conducted across three different Vietnamese samples (N = 2741). We present a comparison of the existing measurement models of the MHC-SF using two methodological approaches: confirmatory factor analysis (CFA) and exploratory structural equation modeling (ESEM) (both in exploratory-using bi-geomin rotation; and in confirmatory variant-using target rotation). RESULTS: The current report supported the targeted bifactor ESEM solution as better describing the factorial structure of the MHC-SF than the originally assumed three-factor solution in all samples. CONCLUSION: The structure of the MHC-SF is best represented as combination of the bifactor and ESEM model.


Assuntos
Sintomas Comportamentais/diagnóstico , Saúde Mental/estatística & dados numéricos , Escalas de Graduação Psiquiátrica/normas , Psicometria/normas , Adolescente , Adulto , Idoso , Análise Fatorial , Feminino , Humanos , Análise de Classes Latentes , Masculino , Pessoa de Meia-Idade , Psicometria/instrumentação , Vietnã , Adulto Jovem
15.
J Clin Psychol ; 74(6): 1034-1052, 2018 06.
Artigo em Inglês | MEDLINE | ID: mdl-29380877

RESUMO

OBJECTIVE: The Mental Health Continuum-Short Form (MHC-SF) is a brief scale measuring positive human functioning. The study aimed to examine the factor structure and to explore the cross-cultural utility of the MHC-SF using bifactor models and exploratory structural equation modelling. METHOD: Using multigroup confirmatory analysis (MGCFA) we examined the measurement invariance of the MHC-SF in 38 countries (university students, N = 8,066; 61.73% women, mean age 21.55 years). RESULTS: MGCFA supported the cross-cultural replicability of a bifactor structure and a metric level of invariance between student samples. The average proportion of variance explained by the general factor was high (ECV = .66), suggesting that the three aspects of mental health (emotional, social, and psychological well-being) can be treated as a single dimension of well-being. CONCLUSION: The metric level of invariance offers the possibility of comparing correlates and predictors of positive mental functioning across countries; however, the comparison of the levels of mental health across countries is not possible due to lack of scalar invariance. Our study has preliminary character and could serve as an initial assessment of the structure of the MHC-SF across different cultural settings. Further studies on general populations are required for extending our findings.


Assuntos
Saúde Global/estatística & dados numéricos , Saúde Mental/estatística & dados numéricos , Satisfação Pessoal , Escalas de Graduação Psiquiátrica/normas , Psicometria/normas , Adolescente , Adulto , Comparação Transcultural , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Psicometria/instrumentação , Adulto Jovem
16.
Int J Psychol ; 52(5): 420-424, 2017 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-26695818

RESUMO

This study examined the mediational role of self-esteem (as an enhancement) and psychological entitlement (as a cost) in the relationship between an agentic-communal model of grandiose narcissism and satisfaction with life. Two hundred and forty-eight university undergraduate students completed measures of agentic and communal narcissism, self-esteem, psychological entitlement and satisfaction with life. The findings suggest that there is support for the usefulness of the agentic-communal model of narcissism, and, consistent with predictions in the wider literature, self-esteem and psychological entitlement mediated the relationship between agentic-communal narcissism and life satisfaction.


Assuntos
Narcisismo , Satisfação Pessoal , Adolescente , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Inventário de Personalidade , Autoimagem , Adulto Jovem
17.
Int J Psychol ; 51(3): 196-204, 2016 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-25594535

RESUMO

In this study, the relationship between agency, communion, and the active, passive, and revenge forms of entitlement is examined. Results indicate that active entitlement was positively related to agency, negatively to communion (Study 1), and unrelated to unmitigated agency and communion (Study 2). Passive entitlement was positively related to communion (in regular and unmitigated forms) and negatively related to agency (in both forms). Revenge entitlement was positively related to agency (unmitigated and regular), and negatively related to both regular and unmitigated communal orientations. Detected relationships were independent from self-esteem (Study 1). The findings are discussed in relation to distinctions between narcissistic and healthy entitlement, and within the context of the three-dimensional model of entitlement.


Assuntos
Direitos Humanos , Relações Interpessoais , Narcisismo , Autoimagem , Adulto , Feminino , Direitos Humanos/psicologia , Humanos , Masculino , Reprodutibilidade dos Testes , Autorrelato
18.
Sci Rep ; 14(1): 17503, 2024 Jul 30.
Artigo em Inglês | MEDLINE | ID: mdl-39080302

RESUMO

A theoretical perspective on grandiose narcissism suggests four forms of it (sanctity, admiration, heroism, rivalry) and states that these forms conduce to different ways of thinking and acting. Guided by this perspective, we examined in a multinational and multicultural study (61 countries; N = 15,039) how narcissism forms are linked to cognitions and behaviors prompted by the COVID-19 pandemic. As expected, differences in cognitions and behaviors across narcissism forms emerged. For example, higher narcissistic rivalry predicted lower likelihood of enactment of COVID-19 prevention behaviors, but higher narcissistic sanctity predicted higher likelihood of enactment of COVID-19 prevention behaviors. Further, whereas the heroism, admiration, and rivalry narcissism forms acted in a typically antisocial manner, with high narcissism predicting greater endorsement of unfounded health beliefs, the sanctity form acted in a prosocial manner, with higher narcissism being linked to lower endorsement of unfounded COVID-19 health beliefs. Thus, the findings (a) support the idea of four narcissism forms acting differently, and (b) show that these differences reflect a double-edged sword, sometimes linking to an anti-social orientation, and sometimes linking to a pro-social orientation.


Assuntos
COVID-19 , Narcisismo , Humanos , COVID-19/psicologia , COVID-19/epidemiologia , Masculino , Feminino , Adulto , Pandemias , SARS-CoV-2 , Pessoa de Meia-Idade , Adulto Jovem
19.
Sci Rep ; 12(1): 1548, 2022 01 28.
Artigo em Inglês | MEDLINE | ID: mdl-35091645

RESUMO

Planning is a fundamental mental ability related to executive functions. It allows to select, order and execute subgoals to achieve a goal. Studies have indicated that these processes are characterised by a specific temporal dynamics reflected in temporal information processing (TIP) in some tens of millisecond domain. Both planning and TIP decline with age but the underlying mechanisms are unclear. The novel value of the present study was to examine these mechanisms in young (n = 110) and elderly (n = 91) participants in Tower of London task, considering two structural properties of problems: search depth related to static maintenance in working memory, and goal ambiguity reflecting dynamic cognitive flexibility. Results revealed that TIP predicted planning accuracy both directly and indirectly (via preplanning) but only in young participants in problems characterised by high goal ambiguity. Better planning is related to longer preplanning and more efficient TIP. This result demonstrates for the first time age-related differences in the contribution of TIP to planning. In young participants TIP contributed to dynamic cognitive flexibility, but not to static maintenance processes. In elderly such relation was not observed probably because the deficient planning might depend on working memory maintenance rather than on cognitive flexibility.


Assuntos
Função Executiva
20.
Front Immunol ; 13: 832924, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35935974

RESUMO

Vaccination against COVID-19 in patients with end-stage renal disease (ESRD) on replacement therapy and kidney transplant recipients (KTRs) is particularly important due to the high mortality rate. Here, we tested the local and systemic immunity to the novel Pfizer BioNTech (BNT162b2) messenger RNA (mRNA) in ESRD, KTR patients, and healthy individuals (150 subjects). The ESRD group was divided into: hemodialysis (HD) and peritoneal dialysis (PD). We investigated the local and systemic immunity based on anti-N (nucleoprotein) and anti-S (spike1/2) Immunoglobulin A (IgA) and Immunoglobulin G (IgG) antibodies, respectively. Additionally, we performed an Interferon gamma (IFN-γ) release test Interferon-gamma release assay (IGRA) to monitor the cellular component of vaccine response. The control group had the highest level of anti-S IgG antibodies (153/2,080 binding antibody units (BAU)/ml) among all analyzed patients after the 1st and 2nd dose, respectively. The HD group (48/926 BAU/ml) had a diminished antibody level compared to PD (93/1,607 BAU/ml). Moreover, the seroconversion rate after the 1st dose was lower in HD than PD (56% vs. 86%). KTRs had extremely low seroconversion (33%). IgA-mediated immunity was the most effective in the control group, while other patients had diminished IgA production. We observed a lower percentage of vaccine responders based on the IFN-γ level in all research participants (100% vs. 85% in control, 100% vs. 80% in PD, 97% vs. 64% in HD). 63% of seropositive KTRs had a positive IGRA, while 28% of seronegative patients produced IFN-γ. Collectively, PD patients had the strongest response among ESRD patients. Two doses of the Pfizer vaccine are ineffective, especially in HD and KTRs. A closer investigation of ESRD and KTRs is required to set the COVID-19 vaccine clinical guidance. Clinical Trial Registration Number: www.ClinicalTrials.gov, identifier: NCT04 905 862.


Assuntos
Vacina BNT162 , COVID-19 , Imunogenicidade da Vacina , Falência Renal Crônica , Transplante de Rim , Diálise Peritoneal , Vacina BNT162/administração & dosagem , Vacina BNT162/efeitos adversos , Vacina BNT162/imunologia , COVID-19/prevenção & controle , Vacinas contra COVID-19 , Humanos , Imunogenicidade da Vacina/imunologia , Imunoglobulina A , Imunoglobulina G , Falência Renal Crônica/terapia , Diálise Peritoneal/efeitos adversos , Diálise Renal , SARS-CoV-2
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