Utilización de los medios de comunicación y actitudes frente a las pantallas en niños de 36-72 meses: estudio descriptivo transversal / Media use and attitudes towards screens in children aged 36-72 months; a cross-sectional, descriptive study

Introducción. La edad en que los niños son introducidos a los dispositivos de comunicación es cada vez más temprana. Las investigaciones sobre los hábitos relacionados con ellos, en niños pequeños, son importantes. El objetivo de este estudio fue describir los hábitos sobre el uso de dispositivos mediáticos (edad de comienzo, tiempo frente a las pantallas, preferencias populares) de niños preescolares y explorar la relación con las características familiares. Población y métodos. Estudio descriptivo transversal: Los padres de niños de 36-72 meses que asistían a los centros de cuidado infantil en Kayseri, una ciudad central de Anatolia, Turquía, completaron un cuestionario sobre los hábitos familiares y de los niños, relacionados con los medios de comunicación. Resultados. Se incluyeron 858 cuestionarios. El 28 % de los niños utilizaban pantallas por más de 2 h/día; el 36 % fueron introducidos a los dispositivos de comunicación antes de los 2 años de edad. La televisión fue el dispositivo más usado (95 %), y los dibujos animados, el programa elegido en el 86,7 %. Los hijos de padres con educación superior tuvieron menos tiempo de pantallas frente a la televisión, la computadora o el teléfono móvil (p = 0,012; p = 0,007; p <0,01 para la madre y p = 0,049; p = 0,032; p = 0,04 para el padre respectivamente). La introducción de libros en los primeros 6 meses de edad se asoció con menor tiempo diario frente a las pantallas (p = 0,011; p = 0,009; p = 0,002 para televisión, computadora y teléfono móvil, respectivamente). El tiempo de los padres frente a la televisión se correlacionó positivamente con el de los niños (p <0,05; r: 0,354). Conclusión. El nivel de educación de los padres, el tiempo que ellos dedican a las pantallas y la introducción de libros en etapas tempranas se relacionaron con los hábitos de los niños frente a los dispositivos mediáticos. Se necesitan estudios amplios para explicar esta relación con mayor claridad.

Introduction: The age at which children are introduced to media devices is becoming increasingly earlier. Studies regarding the media habits of young children have gained importance. The aim of the study was to describe the screen media habits (age of introduction media, time spend with screen, popular choices) of preschool children and to explore their relationship with household characteristics. Population and methods: Cross-sectional descriptive study; the parents of children aged 36-72 months who attended childcare centers in Kayseri, a central Anatolian city in Türkiye, completed a questionnaire on media habits of families and children. Results: There were 858 questionaires included. The proportion of children using screen media more than 2 h/day was 28%; 36% of children were introduced to media devices before the age of two. The most frequently used media tool was television (95%) and the program watched was cartoons for TV (86.7%). Children of highly educated parents had shorter TV, computer and smartphone screen time (p = 0.012, p = 0.007, p <0.01 for mother and p = 0.049, p = 0.032, p = 0.04 for father respectively). Introducing books in the first 6 months was associated with shorter daily screen time (p = 0.011, p = 0.009, p = 0.002 for TV, computer and smartphone ,respectively). Parent's time spent on TV was positively correlated with children's time spent on TV (p <0.05, r = 0.354). Conclusion: Parents' education levels, parents' screen time and introducing book in early age was related to children's media habits. Comprehensive studies are needed to explain this relationship more clearly.

Recent advances in drug screening methods of SARS-CoV-2 spike protein / 药学学报

The pandemic of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has caused a serious impact on global public health and the economy. SARS-CoV-2 infiltrates host cells via its surface spike protein, which binds to angiotensin-converting enzyme 2 on the host cell membrane. As a result, small molecules targeting spike protein have emerged as a hotspot in anti-SARS-CoV-2 drug research. Activity screening is an important step in seeking small molecule drugs. Therefore, this article aims to review the biological activity evaluation methods of small molecule inhibitors targeting SARS-CoV-2 spike protein, with the goal of laying the foundation for the discovery of new anti-SARS-CoV-2 drugs.

Tempo de tela, qualidade da dieta de adolescentes e características do entorno escolar / Screen time, quality of the adolescent diet, and profile of the school environment

Resumo Objetivou-se investigar a associação entre o tempo de uso excessivo de diferentes telas, a qualidade da dieta em adolescentes e características do entorno escolar. Adolescentes de 30 escolas estaduais de Curitiba/PR relataram tempo de tela: televisão, videogame e portáteis. A qualidade da dieta foi avaliada pela frequência de consumo de alimentos. A renda do entorno escolar foi obtida do Censo. O ambiente construído para atividade física investigado por observação sistemática do entorno escolar. A regressão de Poisson multinível foi empregada para estimar associações com as variáveis de exposição. Entre 1.200 adolescentes, 50,9% do sexo masculino, 74,4% tiveram tempo excessivo de tela. O tempo excessivo de TV (56,5%) esteve associado à pior qualidade da alimentação. O tempo excessivo de videogame (22,0%) foi menor no sexo feminino (RP 0,25; IC95% 0,18;0,36), associado à pior qualidade da alimentação, à menor renda do entorno escolar, e à pior classificação do ambiente construído para atividade física. O tempo excessivo de telas portáteis (53,2%) apresentou tendência de aumento com a renda do entorno escolar. O uso excessivo de TV e telas portáteis foi amplamente praticado por adolescentes, com diferentes variáveis demográficas e contextuais associadas de acordo com o tipo de dispositivo utilizado.

Abstract Adolescents from 30 state schools in Curitiba, State of Paraná, reported total screen time, namely television, video games and laptops. Diet quality was assessed by the frequency of food consumption. The income of the school environment was taken from the Census. The built environment for physical activity was investigated by systematic observation of the school surroundings. Multilevel Poisson Regression was used to estimate associations with the exposure variables. Among 1,200 adolescents, 50.9% being male, and 74.4% were found to be exposed to excessive screen time. Excessive TV screen time (56.5%) was associated with poor diet quality. Excessive video game time (22.0%) was lower among females (PR 0.25; 95%CI 0.18;0.36), associated with poor diet quality, lower school environment income, and the worst classification of the built environment for physical activity. Excessive use of portable screens (53.2%) tended to increase with the income of the school environment. Excessive use of TV and laptops was widespread among adolescents, with different demographic and contextual variables associated according to the type of device used.

Mídias eletrônicas e sintomas de desatenção/hiperatividade entre crianças e adolescentes durante a pandemia Covid-19 / Medios electrónicos y síntomas de inatención/hiperactividad en niños/adolescentes durante la pandemia Covid-19 / Electronic media and symptoms of inattention/hyperactivity among children/ adolescents during the Covid-19 pandemic

The correlation between inattention and hyperactivity symptoms/behavior manifestations and screen time was evaluated among Brazilian children and adolescents (7-18 years old) who were socially isolated due to the COVID-19 pandemic. A total of 517 legal guardians completed questionnaires about electronic media use (MAF-P) and emotional/behavioral problems (CBCL/6-18). The results showed that texting was correlated to less inattention/hyperactivity symptoms; listening to music, the use of social media and electronics for school purposes were negatively correlated to attention problems and inattention/hyperactivity symptoms and playing videos games and online videos were associated to more attention problems and inattention/hyperactivity symptoms. The results contribute to the understanding of the relationship between inattention/hyperactivity symptoms and screen time in a sample of Brazilian children and adolescents during the pandemic.

Se evaluó la correlación entre síntomas/manifestaciones conductuales de inatención e hiperactividad y tiempo de uso de medios electrónicos entre niños y adolescentes brasileños (7-18 años) en aislamiento social por la pandemia de COVID-19. Los participantes fueron 517 tutores que completaron inventarios de uso de medios (MAF-P) y problemas emocionales/conductuales (CBCL/6-18), entre junio y agosto de 2020. Los resultados indican que más tiempo dedicado a la comunicación de mensajes se correlacionó con menos informes de síntomas de inatención/hiperactividad; Escuchar música durante más tiempo, usar redes sociales y dispositivos electrónicos para la escuela/el trabajo se asoció con menos síntomas inatención/hiperactividad y problemas de atención. Finalmente, jugar más videojuegos y ver videos en línea se asoció con más síntomas de falta de atención/hiperactividad y problemas de atención. Los resultados contribuyen a comprender que existen asociaciones entre la frecuencia de síntomas de inatención/hiperactividad y el tiempo de uso de medios electrónicos en una muestra de niños y adolescentes brasileños durante la pandemia.

Avaliou-se a correlação entre sintomas/manifestações comportamentais de desatenção e hiperatividade e tempo de uso de mídias eletrônicas entre crianças e adolescentes (7-18 anos) brasileiras em isolamento social devido a pandemia da COVID-19. Participaram 517 responsáveis que preencheram inventários de uso de mídias (MAF-P) e de problemas emocionais/comportamentais (CBCL/6-18), entre junho-agosto de 2020. Resultados indicam que mais tempo em comunicação por mensagens correlacionou-se a menos relatos de sintomas de desatenção/hiperatividade; já mais tempo ouvindo música, usando redes sociais e eletrônicos para escola/trabalho associaram-se com menor número de sintomas de desatenção/hiperatividade e de problemas atencionais. Por fim, maior em videogames e assistindo vídeos online associaram-se a mais sintomas de desatenção/hiperatividade e problemas atencionais. Os resultados contribuem para entender que existem associações entre frequência de sintomas de desatenção/hiperatividade e tempo de uso de mídias eletrônicas em uma amostra de crianças e adolescentes brasileiros durante a pandemia.

The relationship between the use of digital display devices and headphones and primary headaches in children / La relación entre el uso de dispositivos de visualización digital y auriculares y el dolor de cabeza primario en niños

Abstract Background: Headache represents the most common neurologic symptom in children. In this study, we investigated the relationship between watching television, listening to music with headphones, smartphone, tablet, and computer use, and primary headaches in children. We aimed to determine whether primary headache in children is associated with excessive use of digital display devices and headphones and whether reducing the use of digital display devices and headphones affects primary headache. Methods: The study included 69 children with primary headaches and 64 with no headaches as a control group. All subjects were evaluated for demographic and headache characteristics and the use of digital display devices and headphones. Our recommendation for patients and families was to decrease the use of digital display devices and headphones, and the headache burden was re-evaluated after one month. Results: Headache frequency was more common in patients who watched television and used smartphones or tablets for more than 6 hours per day. Using a smartphone or tablet for more than 3 hours daily was more common in the study group than the control group. Headache frequency decreased in all patients one month after the digital imaging device and headphones were restricted. Conclusions: Watching television and using a smartphone or tablet strongly associates with primary headaches during childhood.

Resumen Introducción: La cefalea representa el síntoma neurológico más común en los niños. En este estudio se investigó la relación entre ver televisión, escuchar música con auriculares, el uso del teléfono inteligente o tableta y computadora y el dolor de cabeza primario en niños. Nuestro objetivo fue determinar la asociación entre la cefalea primaria en niños y el uso excesivo de dispositivos de visualización digital y auriculares, y el efecto de la disminución del uso de dispositivos de visualización digital y auriculares sobre la cefalea primaria. Métodos: El estudio incluyó a 69 niños con cefaleas primarias y 64 niños sin cefaleas como grupo control. Se evaluaron las características demográficas y de dolor de cabeza y uso de dispositivos de visualización digital y auriculares de los participantes. Se aconsejó a los pacientes y familiares que disminuyeran el uso del dispositivo de pantalla digital y los auriculares y se volvió a evaluar la carga de dolor de cabeza después de 1 mes. Resultados: La frecuencia de la cefalea fue más frecuente en los pacientes que veían televisión y utilizaban un teléfono inteligente o una tableta más de 6 horas al día. El uso de más de 3 horas al día fue más común en el grupo de estudio que en el grupo control. La frecuencia del dolor de cabeza disminuyó en todos los pacientes 1 mes después de la restricción del dispositivo de imagen digital y los auriculares. Conclusiones: Ver la televisión y el uso de un teléfono inteligente o tableta se asocian estrechamente con el dolor de cabeza primario en la infancia.

Safeguarding Our Adolescents from Inappropriate Use of Smart Gadgets: Hacks and Heuristics

Adolescents (children aged 11-19 years) are at the greatest peril when it comes to use of smart gadgets. These gadgets are essential for literacy and development, but also have the potential to cause addiction and other unwanted effects. Finding the right balance is the key. Thus, there is a considerable need to devise, enlist and convey to parents, various hacks and heuristics that can be used by them to optimize the use of smart gadgets by their teenager children. This communication should prove helpful for all health care professionals who are directly or indirectly involved in adolescent health care.

Dry eye symptoms and digital eyestrain - Emerging epidemics among university students due to online curriculum amid the COVID-19 pandemic. A cross-sectional study

Purpose: Increased screen time has been a major concern among the students who have adopted the online curriculum amid the pandemic. The study was conducted to shed light on the changing trends of symptoms pertaining to dry eye disease and digital eyestrain due to the online curriculum and its negative implications on the ocular health of students. Methods: A cross?sectional study was conducted among students of Manipal Academy of Higher Education who are currently following the E?learning curriculum amid the COVID?19 pandemic the participants were surveyed using a pre?validated structured questionnaire. Results: The mean age of study participants was 23.33 ± 4.604 years. In total, 97.9% (321/352) of the respondents experienced at least three symptoms associated with the usage of digital devices. 88.1% of the participants were exposed to an average screen time of more than 4 hours per day. An increased number of hours of digital device usage was found to be associated with higher total symptom scores (P = 0.04). The total symptom scores were found to be considerably higher for those with continuous contact with the screen (P = 0.02). Headache (69.9%, n = 246) is the most commonly reported symptom followed by neck pain (65.3%, n = 230), tearing (44.6%, n = 157), eye pain (40.9%, n = 144), and burning sensation (40.1%, n = 141). Conclusion: This study highlights a tremendous increase in the prevalence of symptoms related to dry eye and digital eyestrain among students attending online classes during the COVID?19 pandemic. Eye care professionals need to be aware of this emerging public health threat and the appropriate measures for its prevention

Dry eye among medical students before and during COVID-19

Purpose: Dry eye is a multifactorial disease of the ocular surface. It showed an increased incidence during the pandemic situation, which may be due to long hours of exposure to electronic gadgets. We aimed to find the prevalence of dry eye disease among medical students during the coronavirus disease 2019 (COVID?19) pandemic and pre?pandemic periods. Methods: This was a cross?sectional study conducted in a tertiary care teaching institute. This was an institution?based, cross?sectional study conducted among medical students. A modified Ocular Surface Disease Index (OSDI) questionnaire was used to find the severity and prevalence of dry eye disease. Considering 95% confidence interval (CI) and prevalence as 50%, the calculated sample size was 271. Online responses were collected and entered in an Excel sheet. The Chi?square test, univariate and multivariate logistic regression were used for statistical analysis. Results: Data were collected from 271 medical students; the prevalence of dry eye disease was 41.5 and 55.19 during the pre?pandemic and pandemic periods, respectively. There was a significant rise in dry eye disease cases during the pandemic when compared to pre?pandemic period (P < 0.05). The odds of getting dry eye disease were 1.7 times more during the pandemic than pre?pandemic. Conclusion: The lockdown situation during the pandemic forced people to use electronic gadgets for work, recreation, and academics. Prolonged screen time predisposes to the development of dry eye disease

Prevalence of Smartphone Addiction and its Relation with Depression among School-going Adolescents

Background: Smartphone addiction among adolescents is an increasingly recognized problem worldwide. It affects the psychological well-being of an individual. Aim and objective: The current study aimed to assess smartphone addiction’s prevalence and its relation to depression among adolescents. Methods: This cross-sectional study was conducted among 400 school-going adolescents. Smartphone Addiction Scale - Short version (SAS-SV) and Patient Health Questionnaire (PHQ-9) were used to assess the prevalence of smartphone addiction and depression. Data were analyzed using Epi info software for windows (CDC, Atlanta). Statistical significance was set at p < 0.05. Results: The mean age of study participants was 14.4 years (SD=1.5 years). The prevalence of smartphone addiction was 23%, while depression was present among 45% of the study participants. Comparatively higher duration of smartphone use was significantly associated with smartphone addiction. Depression was significantly higher among smartphone addicts (77.2%) as compared to their counterparts (35.4%). Conclusion and Recommendation: The smartphone usage of adolescents, if not monitored, could lead to its addiction and thus increase the risk of depression among them. To prevent smartphone addiction, limiting children’s screen time is recommended. In this regard, parents can play a pivotal role by becoming responsible digital role models for their children.

The correlation of screen time with sleep quality: A cross-sectional study on undergraduate medical students

Background: Continuous and long-term exposure to the screens of electronic devices, especially smartphones, cell phones, and tablets, is associated with poor quality of sleep. Aim and Objectives: The study was undertaken to correlate screen time exposure and the quality of sleep in undergraduate medical students and to find out the effects of increased screen time exposure on the health of students. Materials and Methods: The study was carried out on 200 undergraduate medical students at Smt. B. K. Shah Medical Institute and Research Centre, Piparia, Vadodara, Gujarat with the help of an online pre-validated questionnaire constructed on Google Form after obtaining ethical approval. The questionnaire was comprised demographic profiles, screen time exposure, and Pittsburgh sleep quality index (PSQI) statements. Data were entered into an Microsoft Excel sheet. For the descriptive statistical part, means, standard deviations, and frequency tables were used. A Chi-square test was applied to detect the strength of the association. P < 0.05 was considered statistically significant. Results: The prevalence of increased screen time among the study population was found 79%. The prevalence of PSQI scores >5 observed in the present study was 73%. There was a significant association observed between increased screen time exposure and PSQI score >5. Conclusion: Increased screen time was significantly associated with poor sleep quality. The most common effect of increased screen time exposure among students found was a headache.

From awareness to action: Effects of a school-based intervention on TV viewing behavior stages and screen time guidelines knowledge in Brazilian adolescents / Da conscientização à ação: Efeitos de uma intervenção escolar nos estágios de mudança de comportamento para assistir TV e no conhecimento das diretrizes de tempo de tela em adolescentes brasileiros

The aims of the study were to verify the effect of an intervention on the stage of behavior change for TV viewing and to identify the possible mediating role of knowledge on screen time guidelines among Brazilian students. This study is a multicomponent school-based intervention conducted with 727 students (54.3% female, 13 years; 427 in the intervention group and 300 in the control group). The intervention was performed in 2017 with baseline and post-intervention assessments (over one academic year). Teacher training was carried out at the beginning of the intervention along with en-vironmental improvements, while educational curriculum such as the delivery of folders and posters were performed throughout the year. The stages of behavior change for TV viewing and knowledge of screen time guidelines were measured by a self-reported questionnaire and the structural equation modeling approach was performed. The intervention had no significant effects on stages of behavior change for TV (p = 0.744) nor did it result in significant changes on knowledge of screen time guide-lines (p = 0.741). While there was no mediation between knowledge of screen time guidelines and the effect of the intervention on stages of behavior change for TV (95%CI: -0.45;0.63), an associa-tion was found between knowledge of screen time guidelines and stages of behavior change for TV (p<0.001). In conclusion, intervention had no significant effect on the stages of behavior change for TV and no mediating effect was observed. However, enhancing awareness on screen time guidelines may positively impact the adolescent's intention to reduce TV time

Os objetivos do estudo foram verificar o efeito de uma intervenção nos estágios de mudança de comporta-mento para assistir TV e identificar o papel mediador do conhecimento sobre as recomendações de tempo de tela. A intervenção multicomponente, randomizada e controlada obteve a participação de 727 alunos em 2017 (54,3% meninas, 13 anos; 427 no grupo intervenção e 300 no grupo controle). A formação dos pro-fessores foi realizada no início da intervenção juntamente com as melhorias ambientais, enquanto as ações educativas foram realizadas ao longo do ano. Os estágios de mudança de comportamento para assistir TV e o conhecimento sobre as recomendações do tempo de tela foram mensurados por questionário auto reportado, pré e pós-intervenção (um ano letivo). Para análise dos dados foi realizada uma modelagem de equações estru-turais. Não houve efeito da intervenção nos estágios de mudança de comportamento para TV (p = 0,744) e também não houve mudanças significativas no conhecimento dos estudantes sobre as recomendações do tempo de tela (p = 0,741). Embora não tenha havido mediação entre conhecimento das recomendações do tempo de tela e o efeito da intervenção nos estágios de mudança de comportamento para TV (IC95%: -0,45;0,63), foi encontrada associação entre o conhecimento das recomendações e os estágios de mudança de comportamento para TV (p < 0,001). Conclui-se que a intervenção não teve efeito significativo nos estágios de mudança de comportamento para TV e efeito mediador. No entanto, aumentar a conscientização sobre as recomendações de tempo de tela pode impactar positivamente na intenção do adolescente de reduzir o tempo de TV

Tempo de exposição a telas em lactentes: comparação pré e durante a pandemia da COVID-19 / Infants' screen time exposure: a comparison before and during the COVID-19 pandemic

Comparar o tempo de exposição a telas de lactentes entre os períodos pré e durante a pandemia da COVID-19 e averiguar fatores relacionados a exposição de tela durante esse período. Responderam ao "Questionário tempo de exposição a telas", 63 responsáveis de lactentes, em dois períodos: pré e durante a pandemia COVID-19. Para a comparação entre os períodos, foi utilizado o teste de Wilcoxon Rank. Durante a pandemia da COVID-19, aumentou-se significativamente o tempo de telas, passando de mediana de 4 para 7 horas semanais, destacando-se a televisão como dispositivo mais utilizado. Observou-se a correlação entre idade do lactente e tempo de exposição a telas. Houve aumento do tempo de exposição a telas durante a pandemia da COVID-19 nos lactentes avaliados. O tempo total de telas apresentou uma correlação proporcional com a idade nos períodos avaliados, porém não se correlacionou com a realização de home-office dos responsáveis.

To compare the infants' time exposure to screens between pre- and during the COVID-19 pandemic and to investigate factors related to screen exposure during this period. The "Screen exposure time questionnaire" was answered by 63 caregivers of infants, in two periods: before and during the COVID-19 pandemic. For comparison between periods, the Wilcoxon Rank test was used. During the COVID-19 pandemic, infants' time exposure to screens increased significantly, from a median of 4 to 7 hours per week, with television being the most used device. A correlation was observed between infant age and time exposure to screens. There was an increase in infants' time exposure to screens during the COVID-19 pandemic. Total screen time showed a proportional correlation with age in the evaluated periods; however, it did not correlate with the home-office performance of those responsible.

Parallelism between hypovitaminosis D3 and recently detected myopia in children with amplified screen use in the COVID-19 era—A preliminary study

Purpose: This introductory study aims to analyze the association of serum vitamin D3 levels with recently detected myopia in Indian children following home confinement post?COVID?19 pandemic. Methods: Children aged 5–15 years who had not attended physical school in the past 1 year and visited the ophthalmology department with various ocular symptoms were divided into two groups: the myopic group with recently detected myopia and the non?myopic group with ocular ailments other than myopia. All children underwent basic ophthalmic evaluation and a general physical examination. Blood samples were collected for serum vitamin D3 levels. A pretested questionnaire inquiring about the duration of exposure to a digital screen, outdoor activities, and socioeconomic status was filled out for all children. Results: The mean serum vitamin D3 level in the myopic group was 28.17 ± 15.02 ng/dl in comparison to 45.36 ± 17.56 ng/dl in the non?myopic group (P value < 0.05). Linear regression of the data establishes that myopia is associated with hypovitaminosis D3 (OR? 13.12, 95% CI 2.90–50.32, a P value of 0.001). The correlation between spherical equivalent and vitamin D3 levels was significant (Pearson correlation value: 0.661). In the myopic group, 63.3% of children had screen use >6 hours against 43.3% of children in the non?myopic group. In the myopic group, 33.3% of the children had an outdoor activity duration of <2 hours against 6.6% of children in the non?myopic group. Conclusion: This study proposes hypovitaminosis D3 as a strong factor associated with the development of myopia in children. Although it is a preliminary study, it suggests that the trial for vitamin D3 supplementation in young children to delay or cease the development of myopia is warranted.

Auranofin reverses acquired resistance to osimertinib in non-small cell lung cancer / 中国药理学通报

Aim To investigate the role of auranofin in reversing acquired resistance to osimertinib in non-small cell lung cancer. Methods Osimertinib-sensi-tive NSCLC cell lines HI975 and PC9 were used to establish osimertinib-resistant NSCLC cell lines HI975/OR and PC9/OR. An FDA approved library of 1470 FDA drugs was used to high-throughput screen the reversal agents of acquired resistant of osimertinib by CCK-8. Compusyn was used to calculate the combination index of osimertinib and auranofin to determine the optimal dose of drug combination. CCK-8, EdU, flow cytometry and Transwell experiments were used to detect osimertinib, auranofin and the combination drug effect on proliferation, apoptosis, migration and invasion of osimertinib acquired NSCLC cell lines. RNA-sequencing was applied to screen differentially expressed mRNAs in osimertinib treatment alone and osimertinib combined with auranofin treatment group. qRT-PCR and western blot were employed to validate the selected gene expression and protein expression. Results Compared with osimertinib sensitive cell lines H1975 and PC9, H1975/OR and PC9/OR showed significantly higher cell viability and lower apoptosis rate after osimertinib treatment. The resistance index was 70. 31 and 136. 99, respectively. In FDA approved 1470 drug library, only auranofin could enhance the sensitivity of osimertinib in H1975/OR and PC9/OR. When 1 μmol • L

Association of online screen media exposure and burnout among adolescent senior high school students enrolled in different online curricula in Metro Manila: An analytic cross-sectional study / The Health Sciences Journal

Introduction@#Due to COVID-19 pandemic, it became imperative for the education sector to shift to online curriculum and eventually hybrid education. However, this policy posed challenges to educators and students, such as increased workload, prolonged screen time, and burnout. This study determined the association of online screen media exposure and burnout among adolescent senior high school students enrolled in different online curricula in Metro Manila.@*Methods@#This analytic cross-sectional study identified adolescent senior high school students in Metro Manila who were recruited via non-probability convenience sampling. Online screen media exposure was assessed based on the cut off value of four (4) or more hours of device usage related to online schooling, and participants answered the Copenhagen Burnout Inventory (CBI) to ascertain presence or absence of said condition. Data analysis included cross-tabulation for prevalence rate ratio (PRR), and Chi-square test for statistical significance.@*Results@#Of the 117 respondents, most had significant online screen media exposure (75.21%). For the CBI, 51 study subjects garnered a score of 50 and above, suggesting that 43.59% of the adolescents might be suffering from burnout. In addition, PRR was calculated to be 3.9 (p-value of .002).@*Conclusion@#Among adolescent senior high school students with significant online screen media exposure of four hours or more, there was 3.9 higher risk of exhibiting burnout symptoms, and this was statistically significant.

Screen Media Dependency and Its Associated Factors Among Preschool Children in Kuala Lumpur

@#Introduction: Excessive screen time among young children is associated with screen dependency. At this moment, there is a lack of data on screen dependency among young children in Malaysia. This study aimed to measure the prevalence of screen dependency and its associated factors among preschool children in Kuala Lumpur. Methods: A cross-sectional study was carried out at registered preschools in Kuala Lumpur. 300 parents of preschool children aged 4 to 6 years old who fulfilled the inclusion and exclusion criteria were recruited via simple random sampling. The Screen Dependency Scale (SDS) were used to assess their dependency to screen media. Univariate and multivariate statistics were analysed using IBM SPSS version 27. Results: The prevalence of screen dependency among preschool children in Kuala Lumpur was 65.7%. Multivariate logistic regression analysis identified that using the screen to resolve children’s quarrels (aOR 2.855, 95% CI 1.187 - 6.868), children who use smartphones (aOR 2.735, 95% CI: 1.244 - 6.013), children’s screen time exceeds 2 hours over the weekend (aOR 2.261, 95% CI: 1.058 - 4.830) and having a television in the bedroom (aOR 5.562, 95% CI: 1.591 - 19.442) were predictors for screen dependency. While active co-use mediation (aOR 0.505, 95% CI: 0.302 - 0.845) were protective. Conclusion: The prevalence of screen dependency was high among preschool children in Kuala Lumpur. Active screening at health care clinics or in schools is essential to identify early children with risk factors for screen dependency.

Tumor cell membrane-coated continuous electrochemical sensor for GLUT1 inhibitor screening / 药物分析学报

Glucose transporter 1(GLUT1)overexpression in tumor cells is a potential target for drug therapy,but few studies have reported screening GLUT1 inhibitors from natural or synthetic compounds.With cur-rent analysis techniques,it is difficult to accurately monitor the GLUT1 inhibitory effect of drug molecules in real-time.We developed a cell membrane-based glucose sensor(CMGS)that integrated a hydrogel electrode with tumor cell membranes to monitor GLUT1 transmembrane transport and screen for GLUT1 inhibitors in traditional Chinese medicines(TCMs).CMGS is compatible with cell membranes of various origins,including different types of tumors and cell lines with GLUT1 expression knocked down by small interfering RNA or small molecules.Based on CMGS continuous monitoring technique,we inves-tigated the glucose transport kinetics of cell membranes with varying levels of GLUT1 expression.We used CMGS to determine the GLUT1-inhibitory effects of drug monomers with similar structures from Scutellaria baicalensis and catechins families.Results were consistent with those of the cellular glucose uptake test and molecular-docking simulation.CMGS could accurately screen drug molecules in TCMs that inhibit GLUT1,providing a new strategy for studying transmembrane protein-receptor interactions.

Advances in screen dependence disorder in preschool children / 国际儿科学杂志

The adverse effects of prolonged screen exposure on infants, children, and adolescents have been confirmed by a growing number of studies.Without early detection and intervention, these adverse effects may persist throughout a child′s growth and development.The period of preschool is a critical time for children′s neurological development and the adverse neurological damage caused by heavy screen exposure during this period should be taken seriously.This paper introduces the current situation of children′s electronic screen use in China and abroad, the definition of screen dependency disorders, focuses on the specific effects of prolonged screen dependency on the neurological development of preschool children and its possible mechanisms, and discusses early intervention measures with evidence-based medicine, aiming to provide a reference for the scientific use of electronic screens in preschool children.

Impact of the Covid-19 pandemic on the use of screens in early childhood / Repercusión de la pandemia de Covid-19 en el uso de pantallas en la primera infancia / Repercussão da pandemia da Covid-19 no uso de telas na primeiríssima infância

ABSTRACT Objective: To identify the impact of the Covid-19 pandemic on the use of digital screens in early childhood, from the perspective of mothers and education professionals. Method: Qualitative study, based on Bronfenbrenner's Bioecological Theory. Nine mothers of children under three years of age, enrolled in daycare centers in a municipality in the state of Paraíba, Brazil, and six education professionals who worked in these daycare centers participated. The data were collected between July and October 2021 via virtual interviews and analyzed according to inductive thematic analysis. Results: The restrictions imposed by the pandemic made screens the only available resource for children's educational activities, interaction, leisure, and distraction, causing an exponential increase in the time they spent in front of screens. Conclusion: The pandemic had a direct impact on the use of digital screens in early childhood, increasing the child's exposure time, according to parents and education professionals.

RESUMEN Objetivo: Identificar las repercusiones de la pandemia de Covid-19 en el uso de pantallas digitales en la primera infancia, desde la perspectiva de las madres y los profesionales de la educación. Método: Estudio cualitativo, basado en la Teoría Bioecológica de Bronfenbrenner. Participaron nueve madres de niños menores de tres años, matriculados en guarderías de un municipio del estado de Paraíba, Brasil, y seis profesionales de la educación que actuaban en esas guarderías. Los datos se recogieron entre julio y octubre de 2021 mediante entrevista virtual y se analizaron según un análisis temático inductivo. Resultados: Las restricciones impuestas por la pandemia convirtieron a las pantallas en el único recurso disponible para las actividades educativas, la interacción, el ocio y la distracción de los niños, lo que provocó un aumento exponencial del tiempo que pasaban frente a ellas. Conclusión: La pandemia tuvo un impacto directo en el uso de pantallas digitales en la primera infancia, repercutiendo en el aumento del tiempo de exposición del niño, según padres y profesionales de la educación.

RESUMO Objetivo: Identificar a repercussão da pandemia da Covid-19 no uso de telas digitais na primeiríssima infância, na perspectiva de mães e profissionais da educação. Método: Estudo qualitativo, baseado na Teoria Bioecológica de Bronfenbrenner. Participaram nove mães de crianças menores de três anos, matriculadas em creches de um município do estado da Paraíba, Brasil e seis profissionais da educação, que atuavam nessas creches. Os dados foram coletados entre julho e outubro de 2021 por meio de entrevista virtual e analisados conforme a análise temática indutiva. Resultados: As restrições impostas pela pandemia fizeram das telas o único recurso disponível para as atividades educativas, interação, lazer e distração das crianças, causando aumento exponencial no tempo em que essas passaram diante das telas. Conclusão: A pandemia repercutiu diretamente no uso de telas digitais na primeiríssima infância, impactando no aumento do tempo de exposição da criança, segundo os pais e profissionais da educação.

Reducing harm and promoting positive media use strategies: new perspectives in understanding the impact of preschooler media use on health and development

Abstract Most children grow up in homes with easy access to multiple screens. Screen use by children between the ages of 0 to 5 has become a worldwide preoccupation. In the present narrative review, we examine child and parent screen use and its contribution to physical, cognitive, and social developmental outcomes. As research has mostly focused on the adverse consequences of screen media, we aim to depict both the negative and the positive influences of screen usage. To provide a more nuanced portrait of the potential benefits and harms of screen use, we examine how consequences of media use vary according to the content of media (ex., educational, violent), context (ex., using screens during mealtimes), and the nature (ex., passive vs active use) of child screen use. Our review supports existing screen time guidelines and recommendations and suggests that media content, the context of use, and the nature of child use, as well as the parent's own screen use, be considered clinically. Future research should seek to clarify how these dimensions jointly contribute to child screen use profiles and associated consequences. Finally, child sex, behavioral/temperamental difficulties, and family adversity appear to contribute to child screen use and its consequences and should be considered in future research. Suggestions for harm-reduction approaches are discussed.