School leaders reflections on their school's engagement in a program to foster health literacy development

Many health attitudes and behaviors formed during childhood are sustained through to adulthood, thereforechildhood is a critical time to develop health literacy. Primary schools provide an ideal environment to equipchildren with lifelong health skills, understanding and knowledge. Through semi-structured interviews, this studygathered primary school leaders’ reflections on the implementation of a program (HealthLit4Kids) designed tofoster health literacy development in their schools. The aim of this study was to determine how school leadersexperienced the HealthLit4Kids intervention. The results showed that leaders perceived the program had a positive effect on health literacy knowledge and understanding within the school community, as well as improvedhealth behaviors. School leaders’ statements indicated that key barriers such as parental engagement and anovercrowded curriculum would need to be navigated to ensure successful program sustainability

Occupational Noise, Smoking, and a High Body Mass Index are Risk Factors for Age-related Hearing Impairment and Moderate Alcohol Consumption is Protective: A European Population-based Multicenter Study

A multicenter study was set up to elucidate the environmental and medical risk factors contributing to age-related hearing impairment (ARHI). Nine subsamples, collected by nine audiological centers across Europe, added up to a total of 4,083 subjects between 53 and 67 years. Audiometric data (pure-tone average [PTA]) were collected and the participants filled out a questionnaire on environmental risk factors and medical history. People with a history of disease that could affect hearing were excluded. PTAs were adjusted for age and sex and tested for association with exposure to risk factors. Noise exposure was associated with a significant loss of hearing at high sound frequencies (>1 kHz). Smoking significantly increased high-frequency hearing loss, and the effect was dose-dependent. The effect of smoking remained significant when accounting for cardiovascular disease events. Taller people had better hearing on average with a more pronounced effect at low sound frequencies (<2 kHz). A high body mass index (BMI) correlated with hearing loss across the frequency range tested. Moderate alcohol consumption was inversely correlated with hearing loss. Significant associations were found in the high as well as in the low frequencies. The results suggest that a healthy lifestyle can protect against age-related hearing impairment

Exploring the ‘everyday philosophies’ of generalist primary school teacher delivery of health literacy education

The enactment of the Australian Curriculum for Health and Physical Education (AC:HPE) is intended to be informed by five ‘propositions’ or Key Ideas, one of which is ‘Develop Health Literacy’. Our study occurred at four Tasmanian primary schools and was conducted by a research team consisting of public health and education academics. This team composition reflects the nature of the HealthLit4Kids program as a university and community grant-funded study intervention. We examined inter-dependent networks, of teachers and children, to investigate Health Literacy (HL) teaching. Data were collected from 30 primary teacher participants and figurational sociology was our theoretical framework. While our program increased teacher awareness about health education, participants demonstrated limited HL knowledge with their teaching largely informed by ‘everyday philosophies’. While increasing health awareness is a welcome first step with the potential to broadly influence students’ adult behaviours, the teachers’ ideas about HL were largely fantastical. This finding was supported by a latent data theme showing a restricted connection between teacher HL knowledge and the AC:HPE

Overexpression of the microRNA miR-433 promotes resistance to paclitaxel through the induction of cellular senescence in ovarian cancer cells

Annually, ovarian cancer (OC) affects 240,000 women worldwide and is the most lethal gynecological malignancy. High-grade serous OC (HGSOC) is the most common and aggressive OC subtype, characterized by widespread genome changes and chromosomal instability and is consequently poorly responsive to chemotherapy treatment. The objective of this study was to investigate the role of the microRNA miR-433 in the cellular response of OC cells to paclitaxel treatment. We show that stable miR-433 expression in A2780 OC cells results in the induction of cellular senescence demonstrated by morphological changes, downregulation of phosphorylated retinoblastoma (p-Rb), and an increase in β-galactosidase activity. Furthermore, in silico analysis identified four possible miR-433 target genes associated with cellular senescence: cyclin-dependent kinase 6 (CDK6), MAPK14, E2F3, and CDKN2A. Mechanistically, we demonstrate that downregulation of p-Rb is attributable to a miR-433-dependent downregulation of CDK6, establishing it as a novel miR-433 associated gene. Interestingly, we show that high miR-433 expressing cells release miR-433 into the growth media via exosomes which in turn can induce a senescence bystander effect. Furthermore, in relation to a chemotherapeutic response, quantitative real-time polymerase chain reaction (qRT-PCR) analysis revealed that only PEO1 and PEO4 OC cells with the highest miR-433 expression survive paclitaxel treatment. Our data highlight how the aberrant expression of miR-433 can adversely affect intracellular signaling to mediate chemoresistance in OC cells by driving cellular senescence