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1.
J Youth Adolesc ; 2024 Jun 14.
Artículo en Inglés | MEDLINE | ID: mdl-38877364

RESUMEN

Depressive symptoms and aggression frequently occur together, and this co-occurrence may result in more severe developmental problems. However, it is unclear if there are distinct patterns of co-occurrence. This study investigated the co-occurrence patterns of depressive symptoms and aggression, and examined their stability and demographic characteristics. A total of 1010 Chinese adolescents (50.6% girls; mean age at T1 = 12.54 years, SD = 0.42) participated in annual surveys over three years (2019-2021). Three different patterns of co-occurrence were found except for the normal group: depression-dominant co-occurrence (13.6%), aggression-dominant co-occurrence (3.2%), and moderate co-occurrence (6.0%) (T1). In these co-occurrence patterns, adolescents classified as aggression-dominant co-occurrence exhibited the most instability and frequent changes, while adolescents classified as depression-dominant co-occurrence exhibited the most stability. Boys or younger adolescents were more likely to exhibit the aggression-dominant co-occurrence, while girls or older adolescents were more likely to exhibit the depression-dominant co-occurrence. The findings indicate that the co-occurrence patterns observed are distinct and are dominated by aggression or depression, which implies the need for targeted intervention practices.

2.
J Youth Adolesc ; 53(5): 1186-1196, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38112848

RESUMEN

Depressive symptoms and aggression often co-occur, and previous studies have found different bidirectional links between depressive symptoms and aggression, suggesting inconsistent developmental cascades. Moreover, it is unclear whether different functions of aggression are differentially associated with depressive symptoms over time. The present study examined the longitudinal associations of reactive and proactive aggression with depressive symptoms in early adolescence. Adolescents (n = 942, 50.7% girls; mean age = 12.54 years, SD = 0.42) were surveyed annually over three years (2019-2021). Random-intercept cross-lagged panel models were used to disentangle between- and within-person effects. The results showed moderate between-person associations of depressive symptoms with the two aggressive functions. And depressive symptoms were more highly associated with reactive aggression than with proactive aggression. However, the state-level bidirectional cross-lagged associations between reactive and proactive aggression and depressive symptoms were not significant. This study highlights the stable trait-like association between depressive symptoms and reactive aggression, and the absence of state-level bidirectional cross-lagged associations challenges previous developmental cascades in adolescents.


Asunto(s)
Conducta del Adolescente , Agresión , Femenino , Humanos , Adolescente , Niño , Masculino , Depresión , Relaciones Interpersonales , Estudios Longitudinales
3.
Dev Psychopathol ; 35(2): 972-981, 2023 05.
Artículo en Inglés | MEDLINE | ID: mdl-35249580

RESUMEN

While the detrimental effect of interparental conflict on adolescent depression is well-established, the underlying mechanisms linking the two continue to be inadequately understood. This study investigated the mediating role of family functioning and the moderating role of cultural beliefs about adversity in the association between interparental conflict and adolescent depression. The samples included 651 Chinese adolescents (mean age at Time 1 = 13.27 years; 56.5% girls) from a two-wave longitudinal study with data spanning 1 year. The findings from path modeling analyses provided evidence for the mediating role of family functioning; these findings indicated that interparental conflict can damage family functioning, which in turn exacerbates the risk of adolescent depression. The moderating role of cultural beliefs about adversity was also demonstrated by interactions between interparental conflict and cultural beliefs about adversity, as well as, family functioning and cultural beliefs about adversity. The results indicated a buffering role of cultural beliefs about adversity on the deleterious effect of interparental conflict on adolescent depression. They also suggested that lower levels of family functioning was associated with increased depression among adolescents were lower in cultural beliefs about adversity.


Asunto(s)
Depresión , Conflicto Familiar , Femenino , Humanos , Adolescente , Masculino , Depresión/etiología , Estudios Longitudinales , Pueblos del Este de Asia , Padres
4.
Curr Psychol ; : 1-15, 2022 Aug 10.
Artículo en Inglés | MEDLINE | ID: mdl-35967488

RESUMEN

To explore the influence and mechanism of parent-child relationship on adolescents' problematic smartphone use, a sample of 3355 Chinese adolescents (M age=16.93, SD = 0.49, range: 14-19 years old; 48% boys) is recruited to measure parent-child relationship, problematic smartphone use, personal growth initiative, and school belonging. The results are as follows. (1) After controlling for gender, age and time spent online per day, parent-child relationship is negatively correlated with problematic smartphone use, and the negative association between parent-child relationship and problematic smartphone use is mediated by the personal growth initiative. (2) The association between parent-child relationship and problematic smartphone use, the association between parent-child relationship and personal growth initiative, and the association between personal growth initiative and problematic smartphone use are all moderated by school belonging and are stronger in adolescents with a high level of school belonging. The present study highlights the mediating role of personal growth initiative and the moderating role of school belonging in the association between parent-child relationship and problematic smartphone use. This study also contributes to a better understanding of the effects, paths, and conditions of parent-child relationship on the problematic smartphone use of adolescents and provides constructive suggestions for preventing adolescents' problematic smartphone use in the mobile Internet era.

5.
BMC Gastroenterol ; 21(1): 154, 2021 Apr 07.
Artículo en Inglés | MEDLINE | ID: mdl-33827660

RESUMEN

BACKGROUND: Acute mesenteric ischemia (AMI) is a life-threatening condition. However, there is no accurate method to predict intestinal necrosis in AMI patients that may facilitate early surgical intervention. This study thus aimed to explore a simple and accurate model to predict intestinal necrosis in patients with AMI. METHODS: A single-center retrospective study was performed on the data of 132 AMI patients treated between October 2011 and June 2020. The patients were divided into the intestinal necrosis and non-intestinal necrosis groups. The clinical characteristics and laboratory data were analyzed by univariate analysis, and the variables with statistical significance were further analyzed by multivariate logistic regression analysis. The independent predictors of intestinal necrosis were determined and a logistic prediction model was established. Finally, the accuracy, sensitivity, and specificity of the model in predicting intestinal necrosis were evaluated. RESULTS: Univariate analysis showed that white blood cell (WBC) count, blood urea nitrogen (BUN) level, neutrophil ratio, prothrombin time (PT), and LnD-dimer were associated with intestinal necrosis. According to logistic regression multivariate analysis, WBC count, BUN level and LnD-dimer were independent predictors of intestinal necrosis. These parameters were used to establish a clinical prediction model of intestinal necrosis (CPMIN) as follows: model score = 0.349 × BUN (mmol/L) + 0.109 × WBC × 109 (109/L) + 0.394 × LnD - Dimer (ug/L) - 7.883. The area under the receiver operating characteristics (ROC) curve of the model was 0.889 (95% confidence interval: 0.833-0.944). Model scores greater than - 0.1992 predicted the onset of intestinal necrosis. The accuracy, specificity, and sensitivity of the model were 82.6%, 78.2%, and 88.3%, respectively. The proportion of intestinal necrosis in the high-risk patient group (CPMIN score ≥ - 0.1992) was much greater than that in the low-risk patient group (CPMIN score < - 0.1992; 82.7% vs. 15.0%, p < 0.001). CONCLUSION: The CPMIN can effectively predict intestinal necrosis and guide early surgical intervention to improve patient prognosis. Patients with AMI who are classified as high-risk should be promptly treated with surgery to avoid the potential complications caused by delayed operation. Patients classified as low-risk group can receive non-surgical treatment. This model may help to lower the morbidity and mortality from AMI. However, this model's accuracy should be validated by larger sample size studies in the future.


Asunto(s)
Isquemia Mesentérica , Humanos , Modelos Estadísticos , Necrosis , Pronóstico , Curva ROC , Estudios Retrospectivos
6.
Mol Cell Proteomics ; 17(10): 1875-1891, 2018 10.
Artículo en Inglés | MEDLINE | ID: mdl-30002204

RESUMEN

Maternal-effect genes are especially critical for early embryonic development after fertilization and until massive activation of the embryonic genome occurs. By applying a tandem mass tag (TMT)-labeled quantitative proteomics combined with RNA sequencing approach, the proteome of the buffalo was quantitatively analyzed during parthenogenesis of mature oocytes and the two-cell stage embryo. Of 1908 quantified proteins, 123 differed significantly. The transcriptome was analyzed eight stages (GV, MII, 2-cell, 4-cell, 8-cell, 16-cell, morula, blastocyst) of Buffalo using the RNA sequencing approach, and a total of 3567 unique genes were identified to be differently expressed between all consecutive stages of pre-implantation development. Validation of proteomics results (TUBB3, CTNNA1, CDH3, MAP2K1), which are involved in tight junction and gap junction, revealing that the maternal expression of the proteins possibly plays a role in the formation of cellular junctions firstly after parthenogenetic activation. Correlation and hierarchical analyses of transcriptional profiles and the expression of NPM2 and NLRP5 mRNA of buffalo in vitro developed oocytes and parthenogenetic embryos indicated that the "maternal-to-zygotic transition" (MZT) process might exist in the model of parthenogenesis, which is similar to a normally fertilized embryo, and may occur between the 8-cell to 16-cell stage. These data provide a rich resource for further studies on maternal proteins and genes and are conducive to improving nuclear transfer technology.


Asunto(s)
Búfalos/genética , Búfalos/metabolismo , Perfilación de la Expresión Génica , Oocitos/metabolismo , Partenogénesis/genética , Proteoma/metabolismo , Proteómica/métodos , Animales , Embrión de Mamíferos/metabolismo , Femenino , Uniones Comunicantes/metabolismo , Regulación del Desarrollo de la Expresión Génica , Ontología de Genes , ARN Mensajero/genética , ARN Mensajero/metabolismo , Reproducibilidad de los Resultados , Uniones Estrechas/metabolismo , Regulación hacia Arriba
7.
Reprod Domest Anim ; 55(4): 503-514, 2020 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-31971628

RESUMEN

Maternal mRNAs deposited in the egg during oogenesis are critical during the development of early embryo, before the activation of the embryonic genome. However, there is little known about the dynamic expression of maternally expressed genes in mammals. In this study, we made buffalo parthenogenesis as our research model to analyse maternal transcription profiles of pre-implantation embryo in buffalo using RNA sequencing. In total, 3,567 unique genes were detected to be differentially expressed among all constant stages during early embryo development (FPKM > 0). Interestingly, a total of 10,442 new genes were discovered in this study, and gene ontology analysis of the new differentially expressed genes indicated that the new genes have a wide cellular localization and are involved in many molecular functions and biological processes. Moreover, we identified eight clusters that were only highly expressed in a particular developmental stage and enriched a number of GO terms and KEGG pathways that were related to specific stage. Furthermore, we identified 1,530 hub genes (or key members) from the maternally expressed gene networks, and these hub genes were involved in 11 stage-specific modules. After visualization using Cytoscape 3.2.1 software, we obtained complex interaction network of hub genes, indicating the highly efficient cooperation between genes during the development in buffalo embryos. Further research of these genes will greatly deepen our understanding of embryo development in buffalo. Collectively, this research lays the foundation for future studies on the maternal genome function, buffalo nuclear transfer and parthenogenetic embryonic stem cells.


Asunto(s)
Búfalos/embriología , Búfalos/genética , Perfilación de la Expresión Génica , Animales , Búfalos/metabolismo , Embrión de Mamíferos/metabolismo , Desarrollo Embrionario/genética , Femenino , Regulación del Desarrollo de la Expresión Génica , Técnicas de Maduración In Vitro de los Oocitos/veterinaria , Partenogénesis/genética , Análisis de Secuencia de ARN
8.
J Youth Adolesc ; 49(1): 60-73, 2020 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-31889229

RESUMEN

Previous studies have found discrepancies between parent and child reports of parental favoritism. Some studies have also found that these discrepancies have unique effects on children's psychosocial adjustment. Nonetheless, much is still unknown about discrepancies between parent-reports and child-reports of parental favoritism and how they are associated with children's development. The current study examines discrepancies in multi-informant reports on parental favoritism in relation to children's internalizing and externalizing problems. The sample consisted of 556 mother-child dyads and 554 father-child dyads (46% boys, Mage = 12.52 years, SDage = 1.18). Polynomial regression analyses and response surface analyses were used to disentangle the effects of parent-child discrepancies in perceived parental favoritism. The results indicate that children reported higher parental favoritism than their parents. And the highest internalizing and externalizing problems occurred when both the mother and the child reported high maternal favoritism, and when both the father and the child report high paternal favoritism. Therefore, these findings partly support the assumptions based on the operations triad model. The findings also highlight the importance of the discrepancy between child- and parent-reports on parental favoritism in the development of children's internalizing and externalizing problems.


Asunto(s)
Conflicto Psicológico , Mecanismos de Defensa , Relaciones Padres-Hijo , Padres/psicología , Hermanos/psicología , Adolescente , Niño , Padre/psicología , Femenino , Humanos , Masculino , Madres/psicología , Apego a Objetos , Responsabilidad Parental/psicología
9.
Exp Mol Pathol ; 107: 68-76, 2019 04.
Artículo en Inglés | MEDLINE | ID: mdl-30703346

RESUMEN

This article has been retracted: please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy). This article has been retracted at the request of the Editor-in-Chief as there are concerns about the reliability of the results included in the article. The journal was initially contacted by the corresponding author to request the retraction of the article. Given the comments of Dr Elisabeth Bik https://scienceintegritydigest.com/2020/02/21/the-tadpole-paper-mill/ regarding this article, the journal requested the author to provide the raw data. However, the author was not able to fulfil this request.


Asunto(s)
Anestésicos Intravenosos/farmacología , Propofol/farmacología , ARN Largo no Codificante/efectos de los fármacos , Cáncer Papilar Tiroideo/patología , Apoptosis/efectos de los fármacos , Línea Celular Tumoral , Movimiento Celular/efectos de los fármacos , Proliferación Celular/efectos de los fármacos , Regulación hacia Abajo , Humanos , ARN Largo no Codificante/biosíntesis
10.
Proteomics ; 16(14): 2005-18, 2016 07.
Artículo en Inglés | MEDLINE | ID: mdl-27173832

RESUMEN

The testicular seminiferous tubules contain Sertoli cells and different types of spermatogenic cells. They provide the microenvironment for spermatogenesis, but the precise molecular mechanism of spermatogenesis is still not well known. Here, we have employed tandem mass tag coupled to LC-MS/MS with the high-throughput quantitative proteomics technology to explore the protein expression from buffalo testicular seminiferous tubules at three different developmental stages (prepuberty, puberty, and postpuberty). The results show 304 differentially expressed proteins with a ≥2-fold change, and bioinformatics analysis indicates that 27 of these may be associated with spermatogenesis. Expression patterns of seven selected proteins were verified via Western blot and quantitative RT-PCR analysis, and further cellular localizations of these proteins by immunohistochemical or immunofluorescence analysis. Taken together, the results provide potential molecular markers of spermatogenesis and provide a rich resource for further studies on male reproduction regulation.


Asunto(s)
Regulación del Desarrollo de la Expresión Génica , Proteoma/genética , Túbulos Seminíferos/metabolismo , Células de Sertoli/metabolismo , Espermatogénesis/genética , Proteínas de Anclaje a la Quinasa A/genética , Proteínas de Anclaje a la Quinasa A/metabolismo , Animales , Búfalos , Cromatografía Liquida , Ontología de Genes , Proteínas de Choque Térmico/genética , Proteínas de Choque Térmico/metabolismo , Masculino , Anotación de Secuencia Molecular , Proteoma/metabolismo , Proteómica/métodos , Túbulos Seminíferos/citología , Túbulos Seminíferos/crecimiento & desarrollo , Células de Sertoli/citología , Maduración Sexual/genética , Espectrometría de Masas en Tándem , Proteínas de Unión al GTP rho/genética , Proteínas de Unión al GTP rho/metabolismo
11.
Int J Mol Sci ; 17(5)2016 Apr 29.
Artículo en Inglés | MEDLINE | ID: mdl-27136540

RESUMEN

Follicular fluid (FF) accumulates in the antrum of the ovarian follicle and provides the microenvironment for oocyte development. FF plays an important role in follicle growth and oocyte maturation. The FF provides a unique window to investigate the processes occurring during buffalo follicular development. The observed low quality of buffalo oocytes may arise from the poor follicular microenvironment. Investigating proteins found in buffalo FF (BFF) should provide insight into follicular development processes and provide further understanding of intra-follicular maturation and oocytes quality. Here, a proteomic-based approach was used to analyze the proteome of BFF. SDS-PAGE separation combined with mass spectrometry was used to generate the proteomic dataset. In total, 363 proteins were identified and classified by Gene Ontology terms. The proteins were assigned to 153 pathways, including signaling pathways. To evaluate difference in proteins expressed between BFF with different follicle size (small, <4 mm; and large, >8 mm), a quantitative proteomic analysis based on multi-dimensional liquid chromatography pre-fractionation tandem Orbitrap mass spectrometry identification was performed. Eleven differentially expressed proteins (six downregulated and five upregulated in large BFF) were identified and assigned to a variety of functional processes, including serine protease inhibition, oxidation protection and the complement cascade system. Three differentially expressed proteins, Vimentin, Peroxiredoxin-1 and SERPIND1, were verified by Western blotting, consistent with the quantitative proteomics results. Our datasets offers new information about proteins present in BFF and should facilitate the development of new biomarkers. These differentially expressed proteins illuminate the size-dependent protein changes in follicle microenvironment.


Asunto(s)
Búfalos/metabolismo , Folículo Ovárico/metabolismo , Proteoma/análisis , Proteómica , Animales , Western Blotting , Cromatografía Líquida de Alta Presión , Estradiol/análisis , Femenino , Líquido Folicular/metabolismo , Cofactor II de Heparina/metabolismo , Folículo Ovárico/crecimiento & desarrollo , Péptidos/análisis , Peroxirredoxinas/metabolismo , Progesterona/análisis , Espectrometría de Masas en Tándem , Vimentina/metabolismo
13.
Genes (Basel) ; 15(5)2024 05 10.
Artículo en Inglés | MEDLINE | ID: mdl-38790235

RESUMEN

The process of muscle growth directly affects the yield and quality of pork food products. Muscle fibers are created during the embryonic stage, grow following birth, and regenerate during adulthood; these are all considered to be phases of muscle development. A multilevel network of transcriptional, post-transcriptional, and pathway levels controls this process. An integrated toolbox of genetics and genomics as well as the use of genomics techniques has been used in the past to attempt to understand the molecular processes behind skeletal muscle growth and development in pigs under divergent selection processes. A class of endogenous noncoding RNAs have a major regulatory function in myogenesis. But the precise function of miRNA-423-5p in muscle development and the related molecular pathways remain largely unknown. Using target prediction software, initially, the potential target genes of miR-423-5p in the Guangxi Bama miniature pig line were identified using various selection criteria for skeletal muscle growth and development. The serum response factor (SRF) was found to be one of the potential target genes, and the two are negatively correlated, suggesting that there may be targeted interactions. In addition to being strongly expressed in swine skeletal muscle, miR-423-5p was also up-regulated during C2C12 cell development. Furthermore, real-time PCR analysis showed that the overexpression of miR-423-5p significantly reduced the expression of myogenin and the myogenic differentiation antigen (p < 0.05). Moreover, the results of the enzyme-linked immunosorbent assay (ELISA) demonstrated that the overexpression of miR-423-5p led to a significant reduction in SRF expression (p < 0.05). Furthermore, miR-423-5p down-regulated the luciferase activities of report vectors carrying the 3' UTR of porcine SRF, confirming that SRF is a target gene of miR-423-5p. Taken together, miR-423-5p's involvement in skeletal muscle differentiation may be through the regulation of SRF.


Asunto(s)
MicroARNs , Desarrollo de Músculos , Músculo Esquelético , Porcinos Enanos , Animales , Ratones , Línea Celular , Regulación del Desarrollo de la Expresión Génica , MicroARNs/genética , MicroARNs/metabolismo , Músculo Esquelético/metabolismo , Músculo Esquelético/crecimiento & desarrollo , Factor de Respuesta Sérica/metabolismo , Factor de Respuesta Sérica/genética , Porcinos Enanos/genética , Porcinos Enanos/crecimiento & desarrollo
14.
Sci Data ; 11(1): 463, 2024 May 07.
Artículo en Inglés | MEDLINE | ID: mdl-38714688

RESUMEN

Adverse perinatal factors can interfere with the normal development of the brain, potentially resulting in long-term effects on the comprehensive development of children. Presently, the understanding of cognitive and neurodevelopmental processes under conditions of adverse perinatal factors is substantially limited. There is a critical need for an open resource that integrates various perinatal factors with the development of the brain and mental health to facilitate a deeper understanding of these developmental trajectories. In this Data Descriptor, we introduce a multicenter database containing information on perinatal factors that can potentially influence children's brain-mind development, namely, periCBD, that combines neuroimaging and behavioural phenotypes with perinatal factors at county/region/central district hospitals. PeriCBD was designed to establish a platform for the investigation of individual differences in brain-mind development associated with perinatal factors among children aged 3-10 years. Ultimately, our goal is to help understand how different adverse perinatal factors specifically impact cognitive development and neurodevelopment. Herein, we provide a systematic overview of the data acquisition/cleaning/quality control/sharing, processes of periCBD.


Asunto(s)
Encéfalo , Desarrollo Infantil , Niño , Preescolar , Humanos , Encéfalo/crecimiento & desarrollo , Encéfalo/diagnóstico por imagen , China , Cognición , Bases de Datos Factuales , Neuroimagen
15.
Front Psychol ; 14: 1236135, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37928568

RESUMEN

Background: Peer victimization used to be considered as a crucial risk factor for children addicted to the internet. Whereas some victimized ones are function better than would be expected. Variability across individuals indicates that it is necessary to understand how children cope with being bullied and why they do not exhibit maladaptive outcomes. Objective: We explored the underlying mechanisms by testing whether subjective well-being was a mediator between peer victimization and Internet addiction and whether the mediation effects conditioned on the levels of parent-child relationship (PCR). Methods: Data were collected from 65, 868 elementary school students in China (Mage = 9.56 years, SD = 0.62, 54.0% male) using four questionnaires. Results: We found that: (1) subjective well-being can partially mediate the relationship of the two variables; and (2) PCR can moderate direct path and second half of the intermediary process. These moderating effects were stronger for children with higher PCR vs. lower PCR, as a strong PCR can help children to deal with intense emotions and to access effective resources to obtain support. Conclusion: This study deepens our understanding of how peer victimization leads to internet addiction, identifies a supportive PCR as a crucial factor that strengthens the resilience of child victims, and highlights the value of focusing on improving the relationship between parents and children in intervening internet addiction related to peer victimization.

16.
Front Psychol ; 14: 1282092, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-38259534

RESUMEN

Introduction: Few studies have simultaneously focused on the effects of marital conflict and marital intimacy on adolescent development, and little is known about the role of sibling relationships. Thus, this study examined the association between marital relationships and adolescent behavioral problems, including depressive symptoms and aggressive behavior. At the same time, we explored the mediating role of sibling hostility and sibling affection and the moderating effect of birth order in multichild families in China. Methods: Participants included 842 adolescents (Mage = 12.60, 46.2% boys) from Henan Province. Marital relationship, sibling relationship, birth order, depressive symptoms and aggressive behavior were assessed by a self-administered questionnaire. SEM was then used to examine the role of sibling relationships and birth order in the association between marital relationship and adolescent behavioral problems. Results: Our results showed that marital intimacy was negatively correlated with depressive symptoms and aggressive behavior, while marital conflict was positively correlated with them. Marital intimacy was associated with depressive symptoms and aggressive behavior through both sibling hostility and sibling affection. Marital conflict was indirectly associated with depressive symptoms and aggressive behavior through sibling hostility. In addition, the first-born adolescents were more sensitive to marital intimacy. Discussion: Given that the occurrence of adolescent behavioral problems is more common in contemporary society, our findings suggest that establishing a more intimate and warmer family atmosphere and promoting positive interactions between siblings may help control adolescent mental health problems.

17.
J Affect Disord ; 304: 122-127, 2022 05 01.
Artículo en Inglés | MEDLINE | ID: mdl-35219739

RESUMEN

PURPOSE: The COVID-19 pandemic has changed the way people live, affecting both their physical and mental health. Adolescents are vulnerable to the stress of the pandemic, and may experience indicators of psychological distress, such as depression. This study aimed to examine the impact of COVID-19-related stressors on depression and the mediating role of life history strategies. METHODS: A two-wave longitudinal study was conducted with 1123 adolescents (51.20% girls, Mage = 14.30) recruited from three junior high schools in the Northeastern province of China. Adolescents' life history strategies, depressive symptoms, and demographic variables were assessed at Time 1 (November 2019) and Time 2 (August 2020), and adolescents' experience of COVID-19-related stressors was assessed at Time 2. None of participants was infected by COVID-19 virus. RESULTS: COVID-19-related stressors were positively associated with depressive symptoms at Time 2 (ß = 0.08, p < 0.01), after controlling for gender, age, SES and depressive symptoms at Time 1. And life history strategies partially mediated the relation of pandemic stress to depression (indirect effect = 0.02, p < 0.05, 95% CI [0.004, 0.034]). There were no gender differences in the relations between stress on depression. LIMITATIONS: The sample was from a district where the pandemic was not very severe, which may limit generalizability of the results. CONCLUSIONS: This study revealed that COVID-19-related stressors may have a long-term impact on adolescents, increasing depression through speeding up their life history strategies. Interventions should focus on life history strategies, particularly cognitive style, among adolescents during and after the pandemic.


Asunto(s)
COVID-19 , Rasgos de la Historia de Vida , Adolescente , COVID-19/epidemiología , China/epidemiología , Depresión/epidemiología , Femenino , Humanos , Estudios Longitudinales , Masculino , Pandemias
18.
Gigascience ; 112022 09 03.
Artículo en Inglés | MEDLINE | ID: mdl-36056732

RESUMEN

BACKGROUND: Maternal proteins have important roles during early embryonic development. However, our understanding of maternal proteins is still very limited. The integrated analysis of mouse uniparental (parthenogenetic) and biparental (fertilized) embryos at the protein level creates a protein expression landscape that can be used to explore preimplantation mouse development. RESULTS: Using label-free quantitative mass spectrometry (MS) analysis, we report on the maternal proteome of mouse parthenogenetic embryos at pronucleus, 2-cell, 4-cell, 8-cell, morula, and blastocyst stages and highlight dynamic changes in protein expression. In addition, comparison of proteomic profiles of parthenogenotes and fertilized embryos highlights the different fates of maternal proteins. Enrichment analysis uncovered a set of maternal proteins that are strongly correlated with the subcortical maternal complex, and we report that in parthenogenotes, some of these maternal proteins escape the fate of protein degradation. Moreover, we identified a new maternal factor-Fbxw24, and highlight its importance in early embryonic development. We report that Fbxw24 interacts with Ddb1-Cul4b and may regulate maternal protein degradation in mouse. CONCLUSIONS: Our study provides an invaluable resource for mechanistic analysis of maternal proteins and highlights the role of the novel maternal factor Fbw24 in regulating maternal protein degradation during preimplantation embryo development.


Asunto(s)
Partenogénesis , Proteómica , Animales , Blastocisto/metabolismo , Desarrollo Embrionario , Femenino , Ratones , Embarazo , Proteoma/metabolismo
19.
Front Psychol ; 12: 751135, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34744928

RESUMEN

In the present study, we examined the association between family socioeconomic status (SES) and adolescents' academic achievement in the arts and the mediating and moderating roles of family process factors, verified family investment model. Chinese adolescents (N = 8,723) in Grade 8 reported characteristics of family SES, family arts resources, and family arts atmosphere, and then completed a standardized test assessing academic achievement in music and visual art. The results showed that family SES significantly predicted adolescents' level of academic achievement in the arts after controlling for adolescents' gender and school location. The effect of family SES on adolescents' academic achievement in the arts was partly mediated by family arts resources, constituting 20.51% of the total predicted effect. In addition, family arts atmosphere moderated the association between family SES and adolescents' achievement in the arts. Specifically, family SES had a stronger relationship with academic achievement in the arts for adolescent with higher family arts atmosphere than for adolescent with poor family arts atmosphere. Findings in this study expands the field of influence of the family environments and enhance an understanding of the influence mechanisms of family environments on arts learning.

20.
Pathol Res Pract ; 216(4): 152856, 2020 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-32098696

RESUMEN

BACKGROUND: Our previous study states that propofol suppresses proliferation and migration of papillary thyroid cancer (PTC) cells by downregulation of lncRNA ANRIL. This study intended to probe the downstream mechanism of ANRIL in PTC with potential microRNAs (miR) and genes. METHODS: ANRIL expression was detected in normal thyroid epithelial cells (Nthy-ori 3-1) and PTC cells (TPC-1, FTC-133, K1 and BCPAP). ANRIL expression was inhibited in TPC-1 and BCPAP cells to explore the effects of si-ANRIL in PTC malignant behaviors. The gain-and loss-of functions of ANRIL/miR-320a were performed to measure their roles in PTC. Levels of ANRIL, miR-320a, HMGB1, apoptosis- and Wnt/ß-catenin and NF-κB pathways-related proteins were measured. Dual-luciferase reporter gene assay and RNA pull-down assay were applied to verify ANRIL/miR-320a/HMGB1 relation. si-ANRIL was transplanted into xenograft tumors in nude mice. RESULTS: ANRIL was upregulated in TPC-1 and BCPAP cells. miR-320a targeted HMGB1, and ANRIL bound to miR-320a. In TPC-1 and BCPAP cells, si-ANRIL prevented PTC cell malignant behaviors, and inactivated the Wnt/ß-catenin and NF-κB pathways; while si-ANRIL + miR-320a inhibition showed opposite trends. Overexpressing miR-320a promoted malignant behaviors of TPC-1 cells. In 6 µg/mL propofol-treated TPC-1 cells, miR-320a inhibition weakened propofol's inhibitory effects on PTC cell growth. After ANRIL inhibition, the volume and weight of xenograft tumors were decreased. CONCLUSION: Propofol upregulated miR-320a and reduced HMGB1 by downregulating ANRIL and inactivating the Wnt/ß-catenin and NF-κB pathways, thus preventing PTC cell malignant behaviors. This study may offer new insights in PTC prevention and treatment.


Asunto(s)
Proteína HMGB1/biosíntesis , MicroARNs/biosíntesis , Propofol/farmacología , ARN Largo no Codificante/biosíntesis , Cáncer Papilar Tiroideo/patología , Neoplasias de la Tiroides/patología , Anestésicos Intravenosos/farmacología , Animales , Regulación Neoplásica de la Expresión Génica/efectos de los fármacos , Proteína HMGB1/efectos de los fármacos , Humanos , Ratones , Ratones Desnudos , MicroARNs/efectos de los fármacos , ARN Largo no Codificante/efectos de los fármacos , Ensayos Antitumor por Modelo de Xenoinjerto
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