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Suicidal behavior is a globally widespread psychiatric disorder with a high rate of mortality. Suicide causes psychological and economic hardships for the families and societies, necessitating the development of effective prevention and treatment programs. However, a clear understanding of the neural basis of suicidal behavior would be essential to develop clinically effective therapies. To date, several neurobiological studies have reported the genetic and epigenetic factors, brain regions, and neurotransmitters involved in suicidal behavior; but, a clear understanding of the origins of self-destructive tendencies is lacking. The high prevalence of self-destructive tendency, a potential hallmark of suicidal behavior presents a biological enigma in light of the evolutionarily pervasive struggle for existence and survival (self-preservation instinct). The potential neural correlates of suicidality and survival behavior have been separately investigated. Several regions of prefrontal cortex were implicated in suicide, while the survival circuits regulating the life-processes (defense, thermoregulation, energy and nutrition, fluid balance, and reproduction) include hypothalamus, amygdala, and parabrachial nucleus, among other structures. Future research to understand the possible influence of malfunctioning survival circuits in suicide could provide valuable insights into suicidal behavior. In addition, understanding the possible evolutionary significance of suicidal traits can help us understand the mechanisms of evolution, and also serve towards alleviation of social stigma around suicide. Thus, future research to unravel the biological correlates of survival vs. suicidal instincts, equipped with high-resolution neuroimaging techniques, would be clinically and socially advantageous towards suicide prevention and treatment. To transculturally adapt the Neck Disability Index to Mexican Spanish (NDI-Mx) and to evaluate its psychometric properties. Translation and transcultural adaptation of the NDI were conducted according to published guidelines. The test-retest reliability of the NDI-Mx was assessed with intraclass correlation coefficient (ICC ), the student t-test, standard error of measurement, minimal detectable change and Bland-Altman plot. Cronbach's α coefficient was used to evaluate internal consistency. https://www.selleckchem.com/products/GDC-0449.html Floor and ceiling effects were also evaluated. Convergent validity was assessed by comparison of the NDI-Mx with the Northwick Park Neck Pain Questionnaire (NPQ) through the Spearman correlation coefficient. Finally, a confirmatory factor analysis (CFA) was conducted. The sample was composed of 113 subjects (38 men and 75 women) with a mean age of 30 (SD, 12.19) years. All items of the NDI-Mx showed good test-retest reliability (ICC = 0.86) and good internal consistency (Cronbach's α = 0.85). Floor and ceiling effects were not observed. There was good convergent validity with a high correlation between NDI-Mx and NPQ (ρ = 0.83). The CFA revealed that a one-factor solution fitted adequately the data (χ (32) = 41.18, p = .13). The NDI-Mx seems to be a valid and reliable tool that can be used in clinical practice and research on Mexican populations with neck pain. The NDI-Mx seems to be a valid and reliable tool that can be used in clinical practice and research on Mexican populations with neck pain.In the current research, two novel zinc(II) phthalocyanines (ZnPcs) (1 and 2) directly connecting with 4-(4-methylpiperazin-1-yl)phenyl groups have been synthesized through the Suzuki-Miyaura coupling reaction. These ZnPcs 1 and 2 were converted to their water-soluble derivatives (1Q and 2Q) by quaternization. The photochemical and photophysical properties were determined in DMSO for the non-ionic zinc(II) phthalocyanines (1 and 2) and in both DMSO and aqueous solutions for the quaternized cationic derivatives (1Q and 2Q) to establish their photosensitizer capabilities in photodynamic therapy (PDT). The spectrofluorometric and spectrophotometric techniques were employed for the determination of interaction between water-soluble ZnPcs (1Q and 2Q) and BSA or ct-DNA. The binding constants of these compounds to BSA were found in the order of 108 M-1. The binding constant of the ct-DNA interaction with 2Q (1.09 × 105 M-1) was found higher than 1Q (6.87 × 104 M-1). The thermodynamic constants were determined for both 1Q and 2Q. The endothermic and spontaneous nature of interaction was observed with ct-DNA. Besides, the thermal denaturation and viscosity studies proved the non-intercalative mode of binding for both compounds to ct-DNA.Located in the critical 1p36 microdeletion region, the chromodomain helicase DNA-binding protein 5 (CHD5) gene encodes a subunit of the nucleosome remodeling and deacetylation (NuRD) complex required for neuronal development. Pathogenic variants in six of nine chromodomain (CHD) genes cause autosomal dominant neurodevelopmental disorders, while CHD5-related disorders are still unknown. Thanks to GeneMatcher and international collaborations, we assembled a cohort of 16 unrelated individuals harboring heterozygous CHD5 variants, all identified by exome sequencing. Twelve patients had de novo CHD5 variants, including ten missense and two splice site variants. Three familial cases had nonsense or missense variants segregating with speech delay, learning disabilities, and/or craniosynostosis. One patient carried a frameshift variant of unknown inheritance due to unavailability of the father. The most common clinical features included language deficits (81%), behavioral symptoms (69%), intellectual disability (64%), epilepsy (62%), and motor delay (56%). Epilepsy types were variable, with West syndrome observed in three patients, generalized tonic-clonic seizures in two, and other subtypes observed in one individual each. Our findings suggest that, in line with other CHD-related disorders, heterozygous CHD5 variants are associated with a variable neurodevelopmental syndrome that includes intellectual disability with speech delay, epilepsy, and behavioral problems as main features.
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