Clinical Research Directory

The Impact of an Evidence-Based Parenting Service on Maternal Sensitivity and Infant Cellular Aging in a Population of Under-Resourced Families

The goal of this clinical trial study is to learn how stress in childhood, or Early Life Adversity (ELA), gets "under the skin" and influences long-term health. The investigators will test if the support given to parents of young children reduces childhood stress. The investigators will also test if the effects of mother's stress and Early Life Adversity can be passed down to children. Can it impact the child's long-term health? Researchers will compare the Promoting First Relationships® in Primary Care (PFR in PC) parenting program with Usual Care to see if PFR reduces mothers' stress, improves mother's sensitivity, and reduces accelerated cellular aging. Participants will: * Be randomized to receive PFR in PC or Usual Care. PFR in PC is an evidence-based 10-week home visiting service, with 2 extra sessions at the WakeMed pediatric clinic. Usual Care is the health care and general services offered to families at the WakeMed pediatric clinic. * Have in-home research visits at the start of the study (Time 1, T1), about 6 months later (Time 2, T2), and 12 months later (Time 3, T3). Information collected at these visits includes: * Answering questions about your background, past and current stress, physical and mental health, parenting behaviors, and child behavior problems (T1, T2, T3). * Being videotaped doing a short teaching activity. * Having a small amount of blood collected from the mother by finger prick (T1, T3). * Having a small amount of blood collected from the infant by heel stick (T1, T3).

Avocado Consumption and Cellular Aging in Breast Cancer Survivors

Women with breast cancer are at increased risk of comorbidities and premature mortality, potentially due to accelerated biological aging. Telomere attrition has been proposed as a biomarker of this process, which could be mitigated through interventions targeting behavioral factors such as diet. In recent years, avocado has drawn attention in nutritional research due to its unique nutritional profile. Main objective: To evaluate the effect of consuming one avocado per day on biological aging-measured by telomere length-in breast cancer survivors, compared to a habitual diet (less than two avocados per week). Secondary objectives include changes in telomerase activity and biomarkers of inflammation and oxidative stress. Additional objectives include classical cardiovascular disease markers (glucose metabolism, lipid profile, blood pressure); anthropometric measurements; quality of life and fatigue; and diet quality. Methodology: A randomized controlled parallel-group trial involving 120 breast cancer survivors. Participants will be randomly assigned to either the intervention group (one avocado per day) or the control group (habitual diet with fewer than two avocados per week) and followed for 4 months. At baseline and the end of the intervention, a general questionnaire will be administered; blood and urine samples will be collected; anthropometric and blood pressure measurements will be taken; and diet, physical activity, quality of life, and fatigue will be assessed. Mean changes from baseline to the end of the intervention in the primary outcome (telomere length) and secondary outcomes (inflammation, oxidative stress, classical cardiovascular disease markers, anthropometric measures, quality of life, and diet) will be compared between the intervention and control groups using linear regression models.

Physical Exercise in Patients With First Psychotic Episode

Justification: Patients with first-episode psychosis are at increased risk of premature ageing and early mortality, associated with telomere shortening and increased inflammatory markers. Physical exercise has shown protective effects in the general population, but there are no intervention studies in this population. Objective: To evaluate the effect of a strength training programme on telomere length and other markers of cellular ageing in people with a first episode of psychosis. Material and methods: Quasi-experimental study with patients aged 18-35 years included in the PRINT programme (Salamanca). Standard treatment will be compared with standard treatment plus a 12-week strength training programme. Telomere length (qPCR), inflammatory and senescence markers (proteomics), body composition, frailty and quality of life will be analysed. Applicability: The results could support the inclusion of physical exercise programmes as a complementary intervention in early psychosis care, promoting overall health, quality of life and reducing the gap in life expectancy compared to the general population.

Does Recombinant FSH (rFSH, i.g. Gonal F®) as Compared to Human Menopausal Gonadotrophin (hMG) Affect Telomere Length of Cumulus Cells During Antral Follicle Growth and Impact Blastocyst Status?

Gonal-F® (follitropin alfa) is a recombinant FSH without LH activity, while Menopur® contains both LH and hCG. The MEGASET trial compared Menopur® and Gonal-F® in GnRH antagonist cycles with SET, showing similar efficacy. A subsequent study (MEGASET-HR) in high responders found ongoing pregnancy rates of 35.5% for Menopur® and 30.7% for Gonal-F®, with a lower early pregnancy loss for Menopur® (14.5% vs 25.5%). Telomere length (TL) in oocyte cumulus cells (CC) correlates with oocyte quality and embryo outcomes. This study aims to assess whether stimulation type (hMG vs. Gonal-F) affects TL in CC and subsequent blastocyst development. A randomized, open-label, cross-over study in normo-responders will analyze telomere length, embryo quality, and hormonal markers.