221 research outputs found

    Adult Attitudes and Adverse Childhood Experiences: Implications for Child Maltreatment

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    In the United States, approximately $124 billion is spent annually on mental health and medical diagnosis as a result of the negative effects of adverse childhood experiences. These experiences can result in both mental and physical illness as well as a pattern of instability across the lifespan, which may affect adult attitudes toward child maltreatment and perpetuate the cycle of abuse. The purpose of this quantitative regression study was to examine any association between a person’s adverse childhood experiences and attitudes of what defined child maltreatment. Bronfenbrenner’s ecological systems theory was the framework. A total of 98 participants took part in this study. The research question explored whether there was an association between a person’s adverse childhood experiences as measured by the ACE Questionnaire, and components of child abuse as measured by the Defining Child Abuse Vignettes, considering education, marital status, and parental status. People with higher adverse childhood experiences were expected to score child maltreatment as being less severe as they might have normalized their adverse childhood experiences from childhood and continued the cycle of abuse. Findings suggested that the hypothesis was not supported. Multiple regression analysis showed no correlation between the variables. The findings of this study may be used for positive social change for policymakers who might support a more child-centered policy that values the prevention of child maltreatment for positive social change

    Synthesis and characterization of psoralen analogues based on carbazoles

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    Novel psoralen analogues based on carbazoles were synthesized and characterized.Fundação para a Ciência e Tecnologia (FCT) and FEDER, for National NMR Networ

    Synthesis and characterization of psoralen analogues based on dibenzofuran

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    Fundação para a Ciência e Tecnologia (FCT) and FEDER, for National NMR Networ

    Synthesis of novel psoralen analogues and their anti-proliferative effect on human cancer cell lines

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    We describe the synthesis of 3H-benzofuro[3,2-f]chromen-3-ones. The anti-proliferative effect on human cancer cell lines (MDA-MB231 and HeLa) was evaluated.FCT and FEDER, for National NMR Networ

    Synthesis of novel psoralen analogues and in vitro antitumor activity

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    Psoralens are natural products present in several plant families that are extremely toxic to a wide variety of prokaryotic and eukaryotic organisms. They are potentially active in diseases such as vitiligo, psoriasis, and several types of cancer. Following our interest on this type of compounds 1 four new psoralen analogues were prepared, 1a-1c and 1e. To synthesize 1a (R = H) the method of Harayama and Ishii was used where the cinnamate was obtained by the Wittig reaction followed by ring closure. Condensation of 1-formyl-2-hydroxycarbazole with diethyl malonate gave 1b which by basic hydrolysis yielded compound 1c. Compound 1d was prepared before.2 Condensation of the 2-hydroxycarbazole with ethyl acetoacetate gave 1e. The products were characterized by elemental analysis, 1H and 13C NMR. Moreover, the anti-proliferative effect of compounds 1a-1e on human cancer cell lines (MDA-MB 231, HeLa and TCCSUP) was evaluated. Results suggest that these psoralen analogues possess a potent cytotoxic effect against the cell lines studied. Computational and molecular docking studies are being carried out.Fundação para a Ciência e a Tecnologia (FCT)(PEst-C/QUI/UI0686/2011), FEDER-COMPET

    Novel benzopsoralen analogues : synthesis, biological activity and molecular docking studies

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    New benzopsoralen analogues were synthesized and their inhibitory effect on the growth of tumourtumour cell lines (MDA MB231 and TCC-SUP) was evaluated. The in vitro antitumour activity of the new benzopsoralen analogues was discussed in terms of structure–activity relationship. Molecular docking studies with human-CYP2A6 enzymes were also carried out with the synthesized compounds to evaluate the potential of these molecules to interact with the haem group of the enzymes. The results demonstrated that the compounds that are able to interact with the iron ion of the haem cofactor and at the same time with active site Asn297 are those that have better anti-proliferative activity.To the Foundation for the Science and Technology (FCT, Portugal) for financial support to the NMR Portuguese network (PTNMR, Bruker Avance III 400-Univ. Minho). FCT and FEDER (European Fund for Regional Development)-COMPETE-QREN-EU for financial support to the Chemistry Research Centre, CQ/UM [PEst-C/QUI/UI0686/2011 (FCOMP-01-0124-FEDER-022716)], to REQUIMTE (PEst-C/EQB/LA0006/2011), to the Centre of Biological Engineering (PEst-OE/EQB/LA0023/2013) and the PhD grant to C.S.F. (SFRH/BD/48636/2008). The authors also acknowledge the Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP, Porto, Portugal) for kindly providing the breast cancer cell lines used in this work

    Synthesis of novel psoralen analogues and their in vitro antitumor activity

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    New tetracyclic benzofurocoumarin (benzopsoralen) analogues were synthesized and their inhibitory effect on the growth of tumor cell lines was evaluated. The human tumor cell lines used were MDA MB231 (breast adenocarcinoma), HeLa (cervix adenocarcinoma) and TCC-SUP (bladder transitional cell carcinoma). The in vitro antitumor activity of the new benzopsoralens was discussed in terms of structure–activity relationship. Molecular docking studies with human-CYP2A6 enzymes were also carried out with the synthesized compounds in order to evaluate the potential of these compounds to interact with the heme group of the enzymes. The results have demonstrated that the linear compounds have the most pronounced activity against tumor cell lines and this might be related to the better accessibility that these compounds have to the active site in relation to the angular ones that have shown in the majority of the cases multiple binding poses in the active site of CYP2A6.To the Foundation for the Science and Technology (FCT, Portugal) for financial support to the NMR portuguese network (PTNMR, Bruker Avance III 400-Univ. Minho). FCT and FEDER (European Fund for Regional Development)-COMPETE-QREN-EU for financial support to the Research Centre, CQ/UM [PEst-C/QUI/UI0686/2011 (FCOMP-01-0124-FEDER-022716)], (Pest-C/EQB/LA0006/2011) and the PhD grant to C.S.F. (SFRH/BD/48636/2008). The authors also acknowledge the Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP, Porto, Portugal) for kindly providing the breast cancer cell line used in this work

    Synthesis of novel psoralen analogues derived from 7-hydroxy-4-methylcoumarin

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    Fundação para a Ciência e a Tecnologia (FCT) FEDER (European Fund for Regional Development)-COMPETE-QREN-EU FCOMP-01-0124-FEDER-022716FEDER (European Fund for Regional Development)-COMPETE-QREN-EU FCOMP-01-0124-FEDER-02271

    Thermal and structural analysis of 4,5,6-trimethoxyisatin

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    4,5,6-Trimethoxyisatin was crystallized from water to give dark red needles that were characterized by NMR and IR spectroscopy, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), single-crystal X-ray diffraction (XRD) and hot-stage microscopy.Fundação para a Ciência e a Tecnologia (FCT) - POCTISFA-3-686Fundo Europeu de Desenvolvimento Regional (FEDER
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