Johansenvelling5989
Today, tacrolimus represents a cornerstone of immunosuppressive therapy for liver and kidney transplants and remains subject of preclinical and clinical investigations, aiming at the development of long-acting depot formulations for subcutaneous injection. One major challenge arises from establishing in vitro-in vivo correlations due to the absence of meaningful in vitro methods predictive for the in vivo situation, together with a strong impact of multiple kinetic processes on the plasma concentration-time profile. In the present approach, two microsphere formulations were compared with regards to their in vitro release and degradation characteristics. A novel biorelevant medium provided the physiological ion and protein background. Release was measured using the dispersion releaser technology under accelerated conditions. A release of 100% of the drug from the carrier was achieved within 7 days. The capability of the in vitro performance assay was verified by the level A in vitro-in vivo correlation analysis. The contributions of in vitro drug release, drug degradation, diffusion rate and lymphatic transport to the absorption process were quantitatively investigated by means of a mechanistic modelling approach. The degradation rate, together with release and diffusion characteristics provides an estimate of the bioavailability and therefore can be a guide to future formulation development.Grandparents are playing an increasingly important role in shaping their grandchildren's nutritional environment. Evidence-based interventions tailored to grandparents thus constitute a potential means of promoting healthy eating among children. For such interventions to be effective, they must account for the unique issues encountered by grandparents. However, research examining the potential needs of grandparents is limited. The present study thus explored (i) grandparents' perceptions of the barriers to providing their grandchildren with healthy food and minimizing consumption of unhealthy food and (ii) the strategies grandparents believe help increase their grandchildren's consumption of healthy food and reduce intake of unhealthy food. Seventy-nine grandparents, each of whom provided care to at least one grandchild aged 3-12 years, participated in one of ten focus groups. Transcripts from each of the groups were imported into NVivo for qualitative coding and semantic thematic analysis. The food preferences of their grandchildren, the promotion of unhealthy food consumption by their grandchildren's parents, advertising of unhealthy food, and peer pressure were the most frequently cited barriers to healthy food consumption. Grandparents reported using multiple strategies to increase their grandchildren's fruit and vegetable consumption and minimize unhealthy food intake. The most common were disguising vegetables, making fruit and vegetables appealing, managing child eating (e.g., limiting access to unhealthy food), saying no to requests for unhealthy food, involving grandchildren in meal planning and cooking, and using rewards. Findings suggest that grandparents may need support with managing food preferences and navigating and negotiating complex relations with parents regarding child feeding.Excessive sugar intake has been associated with multiple health conditions (e.g., higher risk for non-communicable diseases). Hence, health organizations have issued guidelines defining the maximum daily intake of free or added sugars. However, data from several countries suggests that these guidelines are rarely met, particularly by young adults. For example, almost half of Portuguese adolescents and young adults exceed the recommended sugar intake. In this work, we aim to further explore college students' attitudes, knowledge, and perceptions about sugar intake, as well as about sugar intake guidelines. A thematic analysis on data from five focus groups (N = 40) indicated that participants reported difficulty in the comprehension of added/free sugars definition and sugar intake recommendations. Overall, attitudes toward sugar were ambivalent. PCSK9 antagonist Sugar was simultaneously perceived as pleasurable and needed, but also as addictive and harmful. Although aware of the potential negative health outcomes associated with excessive sugar intake, most participants did not perceive being at risk due to their youth, exercise habits, or type of diet. The few concerns expressed were mostly associated with the negative impact of high sugar intake on body image (e.g., weight gain). The main barriers to reducing sugar intake identified were environmental (e.g., time restrictions, food available at the university). Still, participants could identify several individual strategies to effectively regulate sugar intake. By identifying knowledge gaps and sources of bias related to sugar consumption, our findings are useful to inform future interventions aiming to address the problem of high sugar intake among university students.Food Neophobia (FN) is a stable trait that measures individuals' propensity to avoid novel/unfamiliar foods. In this research, focus was directed to covariation between FN and food choice factors as measured using two variants of the food choice questionnaire (FCQ). To our knowledge, there are no previous studies which investigates these associations in detail, and in this regard the present research advances understanding of individual differences in FN and FCQ. Existing survey data were used, collected in the USA and Australia with ~1500 and ~750 consumers, respectively. Data from New Zealand came from studies conducted at central location test (CLT) facilities (Ñ400, Ñ1100). There were many consistencies in results across the four studies, and this was noteworthy considering that the data were obtained in 3 different countries across more than 10 years and with participants in CLT and online studies. The FCQ factor Familiarity always gained in importance with increasing FN. The FCQ factor Convenience also always gained in importance with increasing FN, in particular importance of simplicity in preparation and cooking. Conversely, the factors Health and Natural Content decreased in importance, as did factors linked to Environmental and Social Justice concerns. Price and Sensory Appeal remained very important for daily food choices among "neophobic" and "neophilic" consumers alike, and this mirrors past studies from diverse consumer populations. The importance of Mood was low regardless of FN status. Additional research is needed to confirm that these findings generalise to consumers in other countries, and assuming they do, this work contributes to the mounting evidence of the pervasive effects of FN on consumers' food-related experiences and motivations. Determining why FN influences food choice motives is an important next step.