Supporting early-career women researchers: lessons from a global mentorship programme.

Mentorship is an important contributor to strengthening research capacity among health researchers. Formal mentorship programmes, targeting women mentees can help mitigate some of the gendered power dynamics and can also help early career researchers learn from others' experiences of navigating these challenges. In 2020, the UNDP/UNFPA/UNICEF/WHO/World Bank Special Programme of Research, Development and Research Training in Human Reproduction at the World Health Organization launched a mentorship programme geared towards early career women researchers. This paper describes the process of designing and implementing a mentorship programme for early career women sexual and reproductive health and rights researchers from low- and middle-income countries including valuable lessons learned vis-à-vis existing evidence. Some of these findings have been incorporated into iterations of the programme launched in 2022. Critical points include: ensuring considerations for language and geographical distribution; allowing mentees to participate in the matching process; providing training and opportunities to network and learn from other participants; offering the support and structure for developing these relationships. Providing women researchers with the tools - through mentorship - to navigate the unique challenges they face in their career journeys, can have a lasting impact on research capacity. Countries and institutions committed to strengthening research capacity need to focus on the holistic growth and motivation of individuals in a way that ensures gender equality.

Effect of d-limonene and its derivatives on breast cancer in human trials: a scoping review and narrative synthesis.

BACKGROUND: D-limonene and its derivatives have demonstrated potential chemopreventive and anticancer activity in preclinical and clinical studies. The aim of this scoping review was to assess and critically appraise current literature on the effect of these bioactive citrus peel compounds on breast cancer in human trials and to identify knowledge gaps for exploration in future studies. METHODS: This study followed a scoping review framework. Peer-reviewed journal articles were included if they reported the effect of d-limonene or its derivatives on breast cancer in human subjects. Articles were retrieved from academic databases - PubMed, EMBASE, CINAHL, Web of Science, and Cochrane reviews - and iteratively through review of bibliographies of relevant manuscripts. Titles and abstracts were appraised against the aforementioned inclusion criteria in a first round of screening. Through consensus meetings and full article review by authors, a final set of studies were selected. Results were reported according to the PRISMA extension for scoping reviews. RESULTS: Our search strategy yielded 367 records. Following screening and adjudication, five articles reporting on phase 1(n = 2), phase 2 (n = 2) and both trial phases (n = 1) were included as the final dataset for this review. Trials evaluating the effect of d-limonene (n = 2) showed it was well tolerated in subjects. One study (n = 43 participants) showed d-limonene concentrated in breast tissue (mean 41.3 µg/g tissue) and reduction in tumor cyclin D1 expression, which is associated with tumor proliferation arrest. This study did not show meaningful change in serum biomarkers associated with breast cancer, except for a statistically significant increase in insulin-like growth factor-1 (IGF-I) levels. While elevation of IGF-I is associated with increased cancer risk, the clinical implication of this study remains uncertain given its short duration. Trials with perillyl alcohol (n = 3) showed low tolerance and no effect on breast cancer. CONCLUSION: This review demonstrated a dearth of clinical studies exploring the effect of d-limonene and its derivatives on breast cancer. Limited literature suggests d-limonene is safe and tolerable in human subjects compared to its derivative, perillyl alcohol. Our review demonstrates the need for additional well-powered placebo-controlled trials that assess d-limonene's efficacy on breast cancer compared to other therapies.