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2.
J Pers Assess ; 98(3): 261-76, 2016.
Article in English | MEDLINE | ID: mdl-26457443

ABSTRACT

A criticism leveled against the conceptualization of emotional intelligence (EI) as a personality trait is that it overlaps considerably with the higher order personality dimensions and, therefore, has weak utility. To investigate this criticism, a systematic review and meta-analysis were conducted to synthesize the literature examining the incremental validity of the 2 adult self-report forms of the Trait Emotional Intelligence Questionnaire (TEIQue). Twenty-four articles reporting 114 incremental validity analyses of the TEIQue were reviewed according to the studies' methodological features. Additionally, data from 18 studies (providing 105 effect sizes) were pooled in a meta-analysis. Results suggest that the TEIQue consistently explains incremental variance in criteria pertaining to different areas of functioning, beyond higher order personality dimensions and other emotion-related variables. The pooled effect size was relatively small, but statistically and practically significant (ΔR(2) = .06, SE = .0116; 95% CI [.03, .08]). The number of covariates controlled for, the form of the TEIQue, and the focus on higher order personality dimensions versus other individual-difference constructs as baseline predictors did not affect the effect size. Analyses conducted at the factor level indicated that the incremental contribution is mainly due to the well-being and self-control factors of trait EI. Methodological issues and directions for future research are discussed.


Subject(s)
Emotional Intelligence , Psychometrics/methods , Humans , Psychometrics/standards , Reproducibility of Results , Self Report , Surveys and Questionnaires
3.
J Pers Assess ; 97(5): 525-35, 2015.
Article in English | MEDLINE | ID: mdl-25830494

ABSTRACT

This study examined the incremental validity of the adult short form of the Trait Emotional Intelligence Questionnaire (TEIQue-SF) in predicting 7 construct-relevant criteria beyond the variance explained by the Five-factor model and coping strategies. Additionally, the relative contributions of the questionnaire's 4 subscales were assessed. Two samples of Canadian university students completed the TEIQue-SF, along with measures of the Big Five, coping strategies (Sample 1 only), and emotion-laden criteria. The TEIQue-SF showed consistent incremental effects beyond the Big Five or the Big Five and coping strategies, predicting all 7 criteria examined across the 2 samples. Furthermore, 2 of the 4 TEIQue-SF subscales accounted for the measure's incremental validity. Although the findings provide good support for the validity and utility of the TEIQue-SF, directions for further research are emphasized.


Subject(s)
Adaptation, Psychological/physiology , Emotional Intelligence/physiology , Personality/physiology , Psychometrics/instrumentation , Surveys and Questionnaires/standards , Adolescent , Adult , Female , Humans , Male , Middle Aged , Reproducibility of Results , Young Adult
4.
Front Psychol ; 6: 247, 2015.
Article in English | MEDLINE | ID: mdl-25814967

ABSTRACT

Although research on emotion regulation (ER) is developing, little attention has been paid to the predictive power of ER strategies beyond established constructs. The present study examined the incremental validity of the Emotion Regulation Questionnaire (ERQ; Gross and John, 2003), which measures cognitive reappraisal and expressive suppression, over and above the Big Five personality factors. It also extended the evidence for the measure's criterion validity to yet unexamined criteria. A university student sample (N = 203) completed the ERQ, a measure of the Big Five, and relevant cognitive and emotion-laden criteria. Cognitive reappraisal predicted positive affect beyond personality, as well as experiential flexibility and constructive self-assertion beyond personality and affect. Expressive suppression explained incremental variance in negative affect beyond personality and in experiential flexibility beyond personality and general affect. No incremental effects were found for worry, social anxiety, rumination, reflection, and preventing negative emotions. Implications for the construct validity and utility of the ERQ are discussed.

5.
Eur J Pers ; 29(1): 42-54, 2015 Jan.
Article in English | MEDLINE | ID: mdl-25798028

ABSTRACT

Driven by the challenge of representing and measuring psychological attributes, this article outlines a psychometric method aimed at identifying problem facets. The method, which integrates theoretical and empirical steps, is applied in the context of the construct of trait emotional intelligence (trait EI), using data from six different samples (N = 1284) collected across Europe. Alternative representations of the trait EI variance, derived from the outcome variables used in previous validation studies of the Trait Emotional Intelligence Questionnaire, were regressed on the 15 trait EI facets using the stepwise method. The analyses revealed five facets, which did not occupy unique construct variance in any of the six samples. As expected, a composite of the remaining 10 facets consistently showed greater construct validity than the original 15-facet composite. Implications for construct and scale development are discussed, and directions for further validation of the method and for its application to other constructs are provided. © 2014 The Authors. European Journal of Personality published by John Wiley & Sons Ltd on behalf of European Association of Personality Psychology.

6.
Curr Psychol ; 33(4): 479-500, 2014.
Article in English | MEDLINE | ID: mdl-25400486

ABSTRACT

We investigated the role that linguistic abstraction may play in people's perceptions of gender in spoken language. In the first experiment, participants told stories about their best friend and romantic partner. Variations in linguistic abstraction and gender-linked adjectives for describing their close others were examined. Participants used significantly more abstract language to describe men compared to women, possibly reflecting a gender stereotype associated with the dispositionality factor of linguistic abstraction. In a second experiment, a new group of participants judged the gender of the protagonists from the stories generated in Experiment 1, after the explicit linguistic gender cues were removed. Consistent with the dispositionality factor, linguistic abstraction moderated the effects of the gender stereotypicality of the context (masculine, feminine, or neutral) on participants' gender judgments. Discussion focuses on the implications of the results for the communication of gender stereotypes and the effects of linguistic abstraction in more naturalistic language.

7.
Front Psychol ; 5: 1164, 2014.
Article in English | MEDLINE | ID: mdl-25352819

ABSTRACT

This study investigated, and partially aimed to replicate, important construct validity aspects and the homogeneity of trait mindfulness measures. Specifically, the study set out to examine whether a single dimension can explain the shared variance among these measures as well as the extent to which they converge with one another and in terms of their linkages to the five-factor model (FFM). Two samples completed all trait measures of the construct and one of them additionally completed a measure of the Big Five personality traits. Results showed that a single dimension explains the shared variance among measures based on the original, Eastern conceptualization of mindfulness, although not all of them seem to represent this construct comprehensively. Intercorrelations, dimensionality analysis, as well as linkages to the FFM indicated that the Eastern and Western conceptualizations, and their respective measures, reflect distinct constructs. However, the amount of variance overlap with the FFM was similar across the two conceptualizations.

8.
Eur J Pharmacol ; 429(1-3): 135-8, 2001 Oct 19.
Article in English | MEDLINE | ID: mdl-11698035

ABSTRACT

Although cerebral and spinal metabotropic glutamate mGlu(1) receptors are thought to be involved in nociception and in the development/maintenance of chronic pain, it is still unclear to what extent mGlu(1) receptors are present in the dorsal root ganglia of peripheral sensory afferents, and whether their expression is affected during development of chronic pain. It was found in the present study that mGlu(1) receptor messenger RNA (mRNA) is present in rat L5 dorsal root ganglia and that it is strongly downregulated after unilateral axotomy of the tibial branch of the sciatic nerve, a model of chronic neuropathic pain. However, as sham-operated animals showed a similar downregulation, it is suggested that peripheral tissue damage is sufficient to result in a reduction of peripheral mGlu(1) receptor expression.


Subject(s)
Ganglia, Spinal/metabolism , Peripheral Nerves/metabolism , RNA, Messenger/biosynthesis , Receptors, Metabotropic Glutamate/biosynthesis , Tibial Nerve/metabolism , Animals , Axotomy , Hyperalgesia/metabolism , Male , Peripheral Nerves/physiopathology , Rats , Rats, Wistar , Receptors, Metabotropic Glutamate/genetics , Tibial Nerve/physiology
9.
Eur J Pharmacol ; 415(1): R5-7, 2001 Mar 09.
Article in English | MEDLINE | ID: mdl-11245860

ABSTRACT

Although cannabinoids are known to be more effective analgesics against chronic rather than acute pain, the mechanism underlying this phenomenon is still unclear. We report now that contralateral thalamic cannabinoid CB(1) receptors are upregulated after unilateral axotomy of the tibial branch of the sciatic nerve, a rat model of chronic neuropathic pain, and hypothesize that cannabinoid CB(1) receptor upregulation contributes to the increased analgesic efficacy of cannabinoids in chronic pain conditions.


Subject(s)
Neuralgia/physiopathology , Receptors, Drug/genetics , Animals , Chronic Disease , Disease Models, Animal , Gene Expression Regulation , RNA, Messenger/genetics , RNA, Messenger/metabolism , Rats , Rats, Wistar , Receptors, Cannabinoid , Sciatic Nerve/physiology , Sciatic Nerve/surgery , Thalamus/metabolism , Up-Regulation
10.
Transplantation ; 68(9): 1427-31, 1999 Nov 15.
Article in English | MEDLINE | ID: mdl-10573088

ABSTRACT

BACKGROUND: Recently we have demonstrated that the nondepleting anti-CD4 monoclonal antibody (mAb) RIB5/2 induces long-term acceptance of kidney and heart allografts in all rat strain combinations tested. Cytokine gene expression studies by reverse transcriptase-polymerase chain reaction revealed a reversed intragraft interleukin (IL)-4/interferon-gamma ratio. Whether IL-4 mediated immune deviation contributes to transplantation tolerance is not clear so far. METHODS: To learn more about the functional relevance of the relative IL-4 up-regulation, IL-4 was overexpressed in rat heart allografts by using ex vivo adenoviral gene transfer. The efficiency of gene transfer was analyzed by reporter gene assays as well by reverse transcriptase-polymerase chain reaction analysis of IL-4 mRNA expression. RESULTS: The intragraft overexpression of IL-4 did not prolong the allograft survival compared with controls. Moreover, neutralization of IL-4 by OX81 mAb did not prevent tolerance induction by RIB5/2 treatment. CONCLUSIONS: Anti-CD4 mAb-induced tolerance is associated with an intragraft type1/type2 shift, however, the up-regulation of IL-4 alone is neither sufficient nor essential to induce tolerance to cardiac allografts in a high-responder strain combination.


Subject(s)
Heart Transplantation/immunology , Immune Tolerance , Interleukin-4/physiology , Animals , Antibodies, Monoclonal/therapeutic use , Gene Transfer Techniques , Graft Survival , Interleukin-4/genetics , Interleukin-4/immunology , Rats , Rats, Inbred Lew , Transplantation, Homologous
11.
Cell Immunol ; 195(1): 53-65, 1999 Jul 10.
Article in English | MEDLINE | ID: mdl-10433797

ABSTRACT

Cytokine gene activation was assessed during rat adjuvant arthritis (AA) in synovial membrane (SM), popliteal lymph node (popl-LN), and spleen, using semiquantitative, competitive RT-PCR. Changes in the popl-LN were considerably higher than in spleen or SM. In the preclinical phase (day 6), cytokine mRNA elevations occurred exclusively in the popl-LN and included IFN-gamma, IL-1beta, IL-5, IL-6, and IL-10. In the acute phase (days 13-16) all three organs became involved: (i) in the SM, significant elevations were limited to IL-1beta and IL-6, which, notably, correlated positively with the degree of arthritis; (ii) in the popl-LN, IFN-gamma, IL-1beta, IL-6, and IL-10 (but not IL-5) were still elevated, while IL-2 rose significantly; (iii) in the spleen, TNF-alpha peaked simultaneously with the arthritis score (day 16) and dramatically dropped thereafter. Upon transition into the chronic phase (day 20) the following phenomena were observed: (i) IL-1beta and IL-6 were still significantly increased in the SM; (ii) IFN-gamma, IL-1beta, IL-2, IL-6, and IL-10 were still elevated in the popl-LN; and (iii) there was a progressive rise of IL-5 mRNA in the spleen, positively correlated with the arthritis score. In conclusion, cytokines with pro- and anti-inflammatory functions overlap throughout disease, but in different organ-related patterns. Local (SM) and regional (popl-LN) IL-1beta and IL-6, elevated throughout the entire course of AA, may directly contribute to disease severity. While in AA spleen TNF-alpha appears to be a systemic marker of acute disease, spleen IL-5 may be involved in disease resolution.


Subject(s)
Arthritis, Experimental/immunology , Cytokines/genetics , Animals , Arthritis, Experimental/physiopathology , Female , Gene Expression Regulation , Hypersensitivity, Delayed/immunology , Lymph Nodes/immunology , RNA, Messenger , Rats , Rats, Inbred Lew , Spleen/immunology , Synovial Membrane/immunology , Transcriptional Activation
12.
Hum Gene Ther ; 7(18): 2273-9, 1996 Dec 01.
Article in English | MEDLINE | ID: mdl-8953318

ABSTRACT

E1-deleted adenoviral vectors are efficient vectors for somatic cell gene therapy, but transgene expression is limited in part by a cytotoxic T cell response directed against virally transduced cells. Moreover, the development of a neutralizing antibody response limits secondary gene transfer with these vectors. Therapy with a depleting anti-CD4 antibody permits prolonged transgene expression in the lung and liver of mice. Furthermore, transient depletion of CD4+ lymphocytes blocks neutralizing antibody production and therefore allows repeat administration and expression of E1-deleted recombinant adenovirus. In this study, we investigated the efficacy of a novel nondepleting anti-CD4 antibody (RIB 5/2) in a model of lung-directed gene therapy in outbred rats. Treatment with RIB 5/2 permitted prolonged reporter gene expression and reduced adenovirus-induced peribronchial and alveolar inflammation in the lung. Moreover administration of RIB 5/2 blocked the development of an anti-adenoviral neutralizing antibody response in the lung and permitted secondary administration and expression of a recombinant adenovirus. These data support the role of immunomodulation in prolonging in vivo transgene expression by recombinant adenovirus.


Subject(s)
Adenoviruses, Human/genetics , Antibodies, Monoclonal , CD4 Antigens/immunology , Gene Expression Regulation/immunology , Genetic Vectors/genetics , Lung/immunology , Adenovirus E1 Proteins , Adenoviruses, Human/immunology , Animals , Antibodies, Viral/analysis , Antibodies, Viral/blood , Bronchoalveolar Lavage Fluid/immunology , Genes, Reporter/genetics , Genetic Vectors/administration & dosage , Genetic Vectors/immunology , Humans , Luciferases/genetics , Lung/metabolism , Lymphocyte Subsets , Male , Neutralization Tests , Rats , Rats, Sprague-Dawley , T-Lymphocytes, Cytotoxic/immunology , beta-Galactosidase/genetics
13.
Arch Dermatol Res ; 289(1): 9-13, 1996 Dec.
Article in English | MEDLINE | ID: mdl-9017129

ABSTRACT

Interleukin-7 (IL-7) is thought to be a growth factor for cutaneous T-cell lymphoma (CTCL) since it has been shown that IL-7 transgenic mice develop a cutaneous disorder characterized by enhanced T-cell proliferation with progression to malignancy and that in vitro growth of Sézary cell lines is IL-7 dependent. However, no direct in vivo evidence exists for the involvement of IL-7 in the pathogenesis of CTCL. Therefore, we examined IL-7 mRNA expression in skin biopsies from patients with mycosis fungoides (MF) (n = 20) and pleomorphic T-cell lymphoma (n = 5). By semiquantitative RT-PCR, IL-7 mRNA was not detectable in any of the CTCL samples, or in normal human skin (n = 8) or in skin from patients with psoriasis (n = 7) or atopic dermatitis (n = 5). In contrast, IL-7 mRNA was detected in a biopsy from a kidney allograft transplant, in normal keratinocytes under various culture conditions and in several cell lines. Interestingly, using a highly sensitive nested PCR, IL-7 mRNA was detectable in all specimens tested, but there was no indication of IL-7 overexpression in MF then analysing lesions of patch, plaque or tumour stages. In contrast, increasing CD3 expression was found, which was most likely a consequence of the enhanced density of malignant T cells in advanced tumour stages. In summary, by the use of semiquantitative RT-PCR we were not able to detect IL-7 overexpression in MF or pleomorphic T-cell lymphoma. This indicates that IL-7 is probably not an autocrine growth factor in these CTCLs.


Subject(s)
Interleukin-7/genetics , Lymphoma, T-Cell/immunology , Mycosis Fungoides/immunology , RNA, Messenger/genetics , RNA, Messenger/metabolism , Adult , Animals , Base Sequence , Cell Line , Cells, Cultured , DNA Primers/genetics , Gene Expression , Growth Substances/genetics , Growth Substances/physiology , Humans , Interleukin-7/physiology , Keratinocytes/immunology , Keratinocytes/metabolism , Lymphoma, T-Cell/etiology , Lymphoma, T-Cell/genetics , Mice , Mycosis Fungoides/genetics , Mycosis Fungoides/metabolism , Polymerase Chain Reaction , Skin/immunology , Skin/metabolism
14.
Transplantation ; 61(6): 948-56, 1996 Mar 27.
Article in English | MEDLINE | ID: mdl-8623165

ABSTRACT

Rejection of vascularized allografts still poses the major problem in organ transplantation. Therefore, transplant rejection of cardiac allografts was investigated in a rat model (BN-to-LEW) under alpha/beta-TCR (R73) mAb-targeted therapy. Two protocols were studied: posttransplant ("immunosuppressive") and pretransplant conditioning therapy. In posttransplant therapy over a wide dose range, R73 mAb only marginally improved cardiac allograft survival (7.8 +/- 0.8 days vs. 12.5 +/- 0.8 days at 0.1 mg/kg for 7 days). In contrast, conditioning treatment with low-dose (0.1 mg/kg) anti-alpha/beta-TCR mAb given 3 to 7 days prior to organ transplantation was highly effective and resulted in 50% permanent acceptance of cardiac allografts. R73 mAb-treated rats were monitored with respect to peripheral lymphocyte populations and intragraft cytokine levels. A temporary, incomplete reduction (CD5+ cells) and partial modulation (alpha/beta-TCR/CD5 double+ cells) in the peripheral blood was observed. In contrast to untreated controls, intragraft production of IL-2 and IFN-gamma at the mRNA and protein level was abolished in both post- and pretreated recipients. Interestingly, pretransplant mAb application was associated with augmented in situ elaboration of the Th2-type cytokines, IL-4 and IL-10, together with up-regulated TGF-beta and PGE. Increased expression of IL-4 and IL-10 continued to be observed in long-term surviving allografts. In conclusion, the mechanism of conditioning therapy with alpha/beta-TCR mAb prior to alloantigen exposure appears to be a switch from Th1 to Th2 response allowing long-term acceptance of allogeneic grafts.


Subject(s)
Antibodies, Monoclonal/therapeutic use , Cytokines/biosynthesis , Graft Rejection/prevention & control , Graft Survival/drug effects , Heart Transplantation/immunology , Receptors, Antigen, T-Cell, alpha-beta/drug effects , Receptors, Antigen, T-Cell, alpha-beta/immunology , Th2 Cells/drug effects , Th2 Cells/metabolism , Animals , CD5 Antigens/immunology , CD5 Antigens/metabolism , Cytokines/genetics , Depression, Chemical , Gene Expression , Graft Rejection/immunology , Graft Survival/immunology , Leukocytes/drug effects , Leukocytes/immunology , Leukocytes/metabolism , Male , Polymerase Chain Reaction , Preoperative Care , Rats , Rats, Inbred BN , Rats, Inbred Lew , Th1 Cells/drug effects , Th1 Cells/metabolism , Time Factors , Up-Regulation/drug effects
15.
J Immunol Methods ; 177(1-2): 23-8, 1994 Dec 28.
Article in English | MEDLINE | ID: mdl-7822831

ABSTRACT

Competitive polymerase chain reaction (PCR) is a sensitive method for quantification of cytokine mRNA expression. Co-amplification of an internal standard serves as control for comparing the efficiency of PCR in different samples. We have developed a novel control fragment for multiple analyses of rat cytokine gene expression containing primers for IL-1 beta, IL-2, IL-4, IL-5, IL-6, IL-10, TNF-alpha, TGF-beta 1, IFN-gamma and MIP-2. Additional primers were incorporated to analyse the content of T cells (CD3), activated T cells (CD25) and housekeeping genes (beta-actin and HPRT). As an example we demonstrate analysis of IL-2 mRNA expression in small pieces of kidney tissue obtained from rats after kidney allotransplantation. The IL-2 expression decreased tenfold during treatment with an anti-rat CD4 monoclonal antibody as compared to untreated animals.


Subject(s)
Cytokines/genetics , Kidney Transplantation , Polymerase Chain Reaction/methods , Animals , Base Sequence , Binding, Competitive , DNA Primers/chemistry , Gene Expression , Interleukin-2/genetics , Molecular Sequence Data , RNA, Messenger/genetics , Rats
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