"It's gotta be done right way": a qualitative study exploring the acceptability of a proposed longitudinal cohort study of young Aboriginal children in Alice Springs.

There is a need for quality longitudinal data on the health and well-being of young Aboriginal and Torres Strait Islander children (hereafter Aboriginal) in Alice Springs that can be used for research, planning and evaluation. The primary aim of this descriptive qualitative study was to determine whether or not a proposed cohort study would be acceptable to the local community. The proposed cohort study will prospectively examine various factors, events and exposures in early life that give Aboriginal children the best chance to grow up strong and lead a healthy happy life. Decisions on specific priority issues to be addressed and study procedures will be determined by local Aboriginal researchers and community members during a future co-design phase. 27 semi-structured interviews and 3 focus group discussions (FGD) were conducted with a range of community stakeholders and parents/caregivers of young Aboriginal children from Alice Springs in the Northern Territory (NT) of Australia. Audio recorded data were transcribed and imported into NVivo12 qualitative software for reflexive thematic analysis. Three major themes concerning acceptability of the concept were constructed from the analysis: (1) Have to be mindful, (2) Duplication of data, and (3) "It's gotta be done right way". There was general support for the concept, however, many participants felt that a cautious and slow approach was necessary. Recommendations included focusing on building trust, taking it slow, and ensuring the study is conducted by local Aboriginal researchers. Barriers to feasibility noted included the high mobility of families, competing demands, and privacy concerns. Findings from this qualitative study support the feasibility and acceptability of a future cohort study of young Aboriginal children in Alice Springs. Leadership from respected local Aboriginal researchers and key stakeholders will be critical to its success.

Healing the Past by Nurturing the Future: Aboriginal parents' views of what helps support recovery from complex trauma.

We aimed to understand support needs for Aboriginal and Torres Strait Islander parents experiencing complex trauma.Becoming a parent is an exciting yet challenging transition, particularly for parents who have experienced past hurt in their own childhood which can have long lasting effects, including complex trauma. Complex trauma-related distress can make it harder to care for a baby, but the parenting transition offers unique opportunities for recovery.This formative research is part of a community-based participatory action research project which aims to co-design perinatal awareness, recognition, assessment and support strategies for Aboriginal and Torres Strait Islander parents experiencing complex trauma. We used an Indigenist approach and grounded theory methods. Aboriginal and Torres Strait Islander parents who were pregnant and/or have children up to two years old were recruited through perinatal care services and community networks in three Australian sites (Alice Springs, Adelaide and Melbourne). Parents were offered a group discussion or individual interview, facilitated by Aboriginal researchers. Third-person scenarios and visual tools were used to facilitate reflections about the impact of past experiences, what keeps parents strong, hopes and dreams, and what is needed to achieve those dreams. Parents were also shown themes from a previous systematic review of parents' experiences as a prompt to identify any additional key issues.Seventeen Aboriginal and Torres Strait Islander parents participated in August to September 2019. Most were mothers (n = 15).  The study's grounded theory methods provided the foundation of a theoretical supposition that positions the transformation of the compounding cycle of trauma, to a reinforcing cycle of nurturing at the intersection of: 1) parents' connectedness; 2) social and emotional wellbeing; and 3) the transition to parenting. Unique opportunities and challenges situated at the interface are bound to the compounding or reinforcing nature of the intersecting factors. Findings reveal complexity, differing experiences by gender and age, as well as within and between communities.

The effects of an alternative diet regimen with natural methionine ingredients on white striping breast myopathy in broiler chickens.

Conventional broiler diets include synthetic methionine to optimize fast muscle growth. Recently, a conventional synthetic methionine-rich diet was compared to alternative diet regimens providing natural sources of methionine. Broilers fed diets with natural methionine sources grew at a slightly slower rate. From this study, we hypothesized that the difference in a growth rate would be reflected in features of the breast muscle from broilers fed the alternative diet. We hypothesized that white striping of pectoralis major muscle would be reduced in slower growing broilers fed the alternative diet regimen with natural methionine. We also hypothesized that there would be associated differences in gene expression for cell differentiation and pathology markers. Broilers fed a conventional corn/soy diet regimen with synthetic methionine were compared to those fed roasted cowpea and sunflower seed meal (60% corn/soy, 20% sunflower seed meal, and 20% roasted cowpea) and no synthetic methionine. Overall broiler growth, muscle gene expression, and muscle collagen content data were compared. Expression analyses of combinations of MYOD1, PPARG, COL1A2, TRIM63, SOD1, PTGS2, and CD36 genes were used to examine differentiation and inflammation in the pectoralis muscles. The group fed an alternative diet gained less weight than those fed the control diet in the starter and grower phases but not in the finisher phase. Ultimately, the conventional diet resulted in a greater final weight for the broilers. However, mean white striping scores for the pectoralis major muscles were greater in the conventional control diet regimen. Gene expression results indicated greater expression of PPARG, PTGS2, and CD36 in the muscle of broilers fed the control diet. These data associate white striping with fat deposition and inflammation. Thus, whether due to differences in feed intake, growth rate, or actual compositional differences, the alternative diet with natural methionine sources seemed to curtail amounts of white striping in broiler muscle. More studies are necessary to further discern the effect of growth rate and natural methionine sources on white striping.

Transcriptome profiles of isolated murine Achilles tendon proper- and peritenon-derived progenitor cells.

Progenitor cells of the tendon proper and peritenon have unique properties that could impact their utilization in tendon repair strategies. While a few markers have been found to aid in distinguishing progenitors cells from each region, there is great value in identifying more markers. In this study, we hypothesized that RNAseq could be used to improve our understanding of those markers that define these cell types. Transcriptome profiles were generated for pools of mouse Achilles tendon progenitor cells from both regions and catalogues of potential markers were generated. Moreover, common (e.g., glycoprotein, signaling, and proteinaceous extracellular matrix) and unique (e.g., cartilage development versus angiogenesis and muscle contraction) biological processes and molecular functions were described for progenitors from each region. Real-time quantitative PCR of a subset of genes was used to gain insight into the heterogeneity amongst individual progenitor colonies from each region. Markers like Scx, Mkx, Thbs4, and Wnt10a were consistently able to distinguish tendon proper progenitors from peritenon progenitors; expression variability for other genes suggested greater cell type complexity for potential peritenon progenitor markers. This is the first effort to define Achilles tendon progenitor markers by region. Further efforts to investigate the value of these cataloged markers are required by screening more individual colonies of progenitors for more markers. Clinical Significance: Findings from this study advance efforts in the discernment of cell type specific markers for tendon proper and peritenon progenitor cells; insight into marker sets could improve tracking and sorting strategies for these cells for future therapeutic strategies. © 2018 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 37:1409-1418, 2019.