Background: Human genetics research lacks diversity; over 80% of genome‐wide association studies have been conducted on individuals of European ancestry. In addition to limiting insights regarding disease mechanisms, disproportionate representation can create disparities preventing equitable implementation of personalized medicine.Objective: This systematic review provides an overview of research involving Parkinson's disease (PD) genetics in underrepresented populations (URP) and sets a baseline to measure the future impact of current efforts in those populations.Methods: We searched PubMed and EMBASE until October 2021 using search strings for “PD,” “genetics,” the main “URP,” and and the countries in Latin America, Caribbean, Africa, Asia, and Oceania (excluding Australia and New Zealand). Inclusion criteria were original studies, written in English, reporting genetic results on PD from non‐European populations. Two levels of independent reviewers identified and extracted information.Results: We observed imbalances in PD genetic studies among URPs. Asian participants from Greater China were described in the majority of the articles published (57%), but other populations were less well studied; for example, Blacks were represented in just 4.0% of the publications. Also, although idiopathic PD was more studied than monogenic forms of the disease, most studies analyzed a limited number of genetic variants. We identified just nine studies using a genome‐wide approach published up to 2021, including URPs.Conclusion: This review provides insight into the significant lack of population diversity in PD research highlighting the immediate need for better representation. The Global Parkinson's Genetics Program (GP2) and similar initiatives aim to impact research in URPs, and the early metrics presented here can be used to measure progress in the field of PD genetics in the future. © 2022 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.

Introduction: Parkinson’s disease (PD) has become a global public health challenge as disability and death due to the disease are growing rapidly in comparison to other neurological disorders. There are no up-to-date comprehensive reviews on the epidemiology, environmental and genetic risk factors, phenotypic characterization, and patient-reported outcomes of PD in Africa. This data is crucial to understanding the current and future burden and suggesting actionable and/or researchable gaps aimed at improving disease outcomes. Methodology: We conducted a systematic literature search using the electronic databases of Cochrane Central Register of Controlled Trials (CCRT), EMBASE, Medline, PsychINFO, Web of Science, Cumulative Index to Nursing and Allied Health Literature (CINAHL), African Journals (AJOL) and other unpublished literature. We included all studies providing data on people with PD in Africa from the start of each database till February 2023. Studies were not restricted based on diagnostic criteria or language. Outcomes of interest were summarised based on epidemiology, genetics, environmental risk factors, clinical characteristics, patient-reported outcomes (experience and quality of life), disease management and outcomes, access to care, patient support, and healthcare workforce training. We also investigated collaboration between African countries (internal) and across continents/world regions (external) and journal impact factors. Results: A total of 4,855 articles were identified, of which 180 were included in this review. The majority were published from North Africa (mainly from Tunisia, and involved collaboration with investigators from France, the United Kingdom, and the United States of America). West Africa (Nigeria), Southern Africa (South Africa) and East Africa (mainly Tanzania) also had a relatively high number of publications. Methodological design varied across studies. Based on the pre-determined outcomes, articles identified were genetics (67), clinical features (65), environmental risk factors (16), epidemiology (14), patient experience and quality of life (10), management and access to care (5) and education and training (3). Conclusions: The main hubs of PD-related research output in Africa are the Northern, Western and Southern regions of Africa (although with limited involvement of countries within these regions). External collaboration (outside the continent) currently predominates. There are considerable actionable and researchable gaps across all outcomes of interest, with a dearth of published information on health workforce capacity building, disease management and access to care, patient and caregiver engagement, and quality of life of people with PD in Africa. We recommend strengthening existing and emerging intercontinental networks for research, education, training and policy formulation and funding, leveraging on more recent developments such as the International Parkinson’s Disease Genomics Consortium-Africa (IPDGC-Africa), the International Parkinson and Movement Disorder Society Africa Section (MDS-AS), World Health Organisation (WHO) and initiatives with similar objectives.

Cancer is one of the leading causes of global morbidity and mortality and one of the most challenging global health conditions, impacting the lives of millions every year. The Eastern Mediterranean Region (EMR) is not on track to achieve the sustainable development goal (SDG) target 3.4 which aims to reduce premature mortality (i.e., before the age of 70 years) for non-communicable diseases (NCDs), including cancer, by a third by year 2030; instead, it is projected that the EMR will experience the least progress towards achieving this target. This review therefore highlights the importance of context-specific cancer management, with a focus on nutritional, lifestyle and supportive care, in the EMR. A comprehensive literature search was conducted using electronic databases, including PubMed, Scopus and Google Scholar, as well as the Academy of Nutrition and Dietetics and key oncology institutes. Nutritional and lifestyle management is a fundamental aspect of cancer care which should be context-specific, achievable and individualized to minimize symptoms and side effects, while maximizing benefits and better addressing the needs of the patients with cancer. A multidisciplinary approach that integrates medical, nutritional, psychological and palliative care is essential to address this growing issue effectively. Cancer care and management requires coordinated efforts from policymakers, healthcare providers and communities to implement evidence-based interventions and promote cancer awareness.

Human genetics research lacks diversity; over 80% of genome-wide association studies (GWAS) have been conducted on individuals of European ancestry. In addition to limiting insights regarding disease mechanisms, disproportionate representation can create disparities preventing equitable implementation of personalized medicine. This systematic review provides an overview of research involving Parkinson’s disease (PD) genetics in under-represented populations (URP), and sets a baseline to measure the future impact of current efforts in those populations. We searched PubMed and EMBASE until October 2021 using search strings for “PD”, “genetics”, the main “URP”, and “lower-to-upper-middle-income countries”. Inclusion criteria were original studies, written in English, reporting genetic results on PD patients from non-European populations. Two levels of independent reviewers identified and extracted relevant information. We observed considerable imbalances in PD genetic studies among URP. Asian participants from China were described in the majority of the articles published (61%), but other populations were less well studied, for example, Blacks were represented in just 4.0% of the publications. Also, although idiopathic PD was more studied than monogenic forms of the disease, most studies analyzed a limited number of genetic variants. We identified just seven studies using a genome-wide approach published up to 2021 including URP. This review provides insight into the significant lack of population diversity in PD research highlighting the urgent need for better representation. The Global Parkinson’s Genetics Program (GP2) and similar initiatives aim to impact research in URP, and the early metrics presented here can be used to measure progress in the field of PD genetics in the future.