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1.
Community Ment Health J ; 60(6): 1117-1130, 2024 Aug.
Article in English | MEDLINE | ID: mdl-38619699

ABSTRACT

This study explored the enablers and obstacles to the integration of traditional medicine and mainstream medicine in mental health services in West Africa. This study is a systematic review conducted in accordance with the relevant parts of the Preferred Reporting Items for Systematic reviews and Meta-analyses. Keywords searches were done in databases, and other reference lists were also searched. The Rainbow model of integrated care and a thematic analysis framework were used to account for the factors influencing the integration of traditional medicine and mainstream medicine in mental health services in West Africa. A total of 12 studies met the eligibility criteria after the evaluation of 6413 articles from databases and reference lists. The themes of: policy and implementation; different conceptualisation of mental health/referrals; trust issues, and education and training, were enablers or obstacles of integration depending on how they worked to facilitate or hinder integration. There was an indication of little integration of TM and MM at the macro, meso and micro levels in mental health services in West Africa. Though the study does cover all the West African states evenly, it is recommended that policy-makers and stakeholders interested in integration should ensure integration activities, especially policies, cut across all the levels of the rainbow model of integrated care and are planned and aligned at the macro, meso and micro levels instead of using ad hoc measures, informal initiatives or placing TM services in MM mental health services, which do not amount to integration.


Subject(s)
Delivery of Health Care, Integrated , Mental Health Services , Humans , Mental Health Services/organization & administration , Africa, Western , Delivery of Health Care, Integrated/organization & administration , Medicine, Traditional , Medicine, African Traditional , Mental Disorders/therapy
2.
Oncologist ; 29(6): e771-e778, 2024 Jun 03.
Article in English | MEDLINE | ID: mdl-38642908

ABSTRACT

BACKGROUND: The poor prognosis of breast cancer in Sudan could be due to delayed treatment and diagnosis at an advanced stage. Our study aimed to assess the extent of delays from onset of symptoms to treatment in Sudanese women with breast cancer, as well as identify factors contributing to these delays. MATERIALS AND METHODS: We conducted a multi-center cross sectional study between March and April 2023. Data were collected from the medical records and interviews with women with breast cancer in the two main oncology centers in Sudan. Linear regression was used to identify the predictors of delayed presentation. RESULTS: We interviewed 601 women with breast cancer. The majority of women (50.1%) were diagnosed at locally advanced or metastatic disease. The median interval from the onset of symptoms to receiving oncologic treatment was 221 days (IQR = 92, 496). The longest delay was the presentation delay 61 (31 244) days. The median duration for diagnosis delay and treatment delay was 21 (10.57) days and 27 (10.64) days, respectively. Predictors of early presentation included, being young (ß = -5.3; 95% CI = 0.06 to 10), married (ß = -264; 95% CI = -427 to -101), divorced (ß = -306; 95% CI = -549 to -63), or widowed (ß = -320; 95% CI = --543 to -97), urban residence (ß = -107; 95% CI = -213 to -2.3), and seeking traditional healer (ß = -204; 95% CI = -383 to -26). CONCLUSION: Most Sudanese women with breast cancer experience significant patient delays, often presenting at advanced stages. Factors like being single, older, and living in rural areas contribute to these delays. Increasing breast cancer education, improving healthcare access and addressing sociodemographic barriers can potentially expedite diagnosis and improve outcomes.


Subject(s)
Breast Neoplasms , Delayed Diagnosis , Time-to-Treatment , Humans , Breast Neoplasms/therapy , Breast Neoplasms/diagnosis , Breast Neoplasms/psychology , Breast Neoplasms/pathology , Female , Cross-Sectional Studies , Middle Aged , Sudan/epidemiology , Adult , Delayed Diagnosis/statistics & numerical data , Time-to-Treatment/statistics & numerical data , Aged
3.
JMIR Res Protoc ; 13: e52250, 2024 05 31.
Article in English | MEDLINE | ID: mdl-38598816

ABSTRACT

BACKGROUND: Lesbian, gay, bisexual, transgender, intersex, queer, and allied (LGBTQIA+) individuals encounter challenges with access and engagement with health services. Studies have reported that LGBTQIA+ individuals experience stigma, discrimination, and health workers' microaggression when accessing health care. Compelling evidence suggests that the LGBTQIA+ community faces disproportionate rates of HIV infection, mental health disorders, substance abuse, and other noncommunicable diseases. The South African National Strategic Plan for HIV or AIDS, tuberculosis, and sexually transmitted infections, 2023-2028 recognizes the need for providing affirming LGBTQIA+ health care as part of the country's HIV or AIDS response strategy. However, current anecdotal evidence suggests paucity of LGBTQIA+ and key populations' health content in the undergraduate health science curricula in South Africa. Moreover, literature reveals a general lack of health worker training regarding the health needs of LGBTQIA+ persons and other key populations such as sex workers, people who inject drugs, and men who have sex with men. OBJECTIVE: This study aimed to describe the design of a project that aims at facilitating the inclusion of health content related to the LGBTQIA+ community and other key populations in the undergraduate nursing curricula of KwaZulu-Natal, South Africa. METHODS: A multimethods design encompassing collection of primary and secondary data using multiple qualitative designs and quantitative approaches will be used to generate evidence that will inform the co-design, testing, and scale-up of strategies to facilitate the inclusion of LGBTQIA+ and key populations content in the undergraduate nursing curricula in KwaZulu-Natal, South Africa. Data will be collected using a combination of convenience, purposive, and snowball sampling techniques from LGBTQIA+ persons; academic staff; undergraduate nursing students; and other key populations. Primary data will be collected through individual in-depth interviews, focus groups discussions, and surveys guided by semistructured and structured data collection tools. Data collection and analysis will be an iterative process guided by the respective research design to be adopted. The continuous quality improvement process to be adopted during data gathering and analysis will ensure contextual relevance and sustainability of the resultant co-designed strategies that are to be scaled up as part of the overarching objective of this study. RESULTS: The proposed study is designed in response to recent contextual empirical evidence highlighting the multiplicity of health challenges experienced by LGBTQIA+ individuals and key populations in relation to health service delivery and access to health care. The potential findings of the study may be appropriate for contributing to the education of nurses as one of the means to ameliorate these problems. Data collection is anticipated to commence in June 2024. CONCLUSIONS: This research has potential implications for nursing education in South Africa and worldwide as it addresses up-to-date problems in the nursing discipline as it pertains to undergraduate students' preparedness for addressing the unique needs and challenges of the LGBTQIA+ community and other key populations. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): PRR1-10.2196/52250.


Subject(s)
Curriculum , Sexual and Gender Minorities , Humans , South Africa , Female , Male , Education, Nursing, Baccalaureate
4.
Food Chem ; 448: 139048, 2024 Aug 01.
Article in English | MEDLINE | ID: mdl-38581965

ABSTRACT

This review aims to gather available information on the medicinal, nutritional, and bioactive profiles of Annonaceae species in the African continent, sponsoring their use worldwide and mainly in African communities, where access to food and medicines for basic health care is scarce. >60 medicinal taxa were compiled, belonging to 22 genera, namely Annickia, Annona, Anonidium, Artabotrys, Cleistochlamys, Cleistopholis, Dennettia, Duguetia, Greenwayodendron, Hexalobus, Isolona, Lettowianthus, Monanthotaxis, Monodora, Neostenanthera, Polyceratocarpus, Sphaerocoryne, Uvaria, Uvariastrum, Uvariodendron, Uvariopsis and Xylopia; the most diverse and economically important genera were the genera Annona, Uvaria and Xylopia with 7 species each. Annonaceae species hold a valuable nutritional profile, rich in proteins, fibers, and minerals, being also good sources of a wide range of bioactive compounds of high biological relevance. These compounds are especially important in developing countries, where most of these species are available for direct use as food and/or medicines by the most deprived populations.

5.
Am J Cancer Res ; 14(3): 1376-1401, 2024.
Article in English | MEDLINE | ID: mdl-38590420

ABSTRACT

Cancer is one of the leading causes of death worldwide. In recent years, African countries have been faced with a rapid increase in morbidity and mortality due to this pathology. Management is often complicated by the high treatment costs, side effects and the increasing occurrence of resistance to treatments. The identification of new active ingredients extracted from endemic medicinal plants is definitively an interesting approach for the implementation of new therapeutic strategies: their extraction is often lower cost; their identification is based on an ethnobotanical history and a tradipratic approach; their use by low-income populations is simpler; this can help in the development of new synthetic molecules that are more active, more effective and with fewer side effects. The objective of this review is to document the molecules derived from African medicinal plants whose in vitro anti-cancer activities and the mechanisms of molecular actions have been identified. From the scientific databases Science Direct, PubMed and Google Scholar, we searched for publications on compounds isolated from African medicinal plants and having activity on cancer cells in culture. The data were analyzed in particular with regard to the cytotoxicity of the compounds and their mode of action. A total of 90 compounds of these African medicinal plants were selected. They come from nine chemical groups: alkaloids, flavonoids, polyphenols, quinones, saponins, steroids, terpenoids, xanthones and organic sulfides. These compounds have been associated with several cellular effects: i) Cytotoxicity, including caspase activation, alteration of mitochondrial membrane potential, and/or induction of reactive oxygen species (ROS); ii) Anti-angiogenesis; iii) Anti-metastatic properties. This review points out that the cited African plants are rich in active ingredients with anticancer properties. It also stresses that screening of these anti-tumor active ingredients should be continued at the continental scale. Altogether, this work provides a rational basis for the selection of phytochemical compounds for use in clinical trials.

6.
Afr J Prim Health Care Fam Med ; 16(1): e1-e13, 2024 Mar 08.
Article in English | MEDLINE | ID: mdl-38572858

ABSTRACT

BACKGROUND: In South Africa, medical students are expected to have acquired a generalist competence in medical practice on completion of their training. However, what the students and their preceptors understand by 'generalist medical practice' has not been established in South African medical schools. AIM: This study aimed to explore what the students and their preceptors understood by 'generalist medical practice'. SETTING: Four South African medical schools: Sefako Makgatho Health Sciences University, University of KwaZulu-Natal, Walter Sisulu University and the University of the Witwatersrand. METHODS: The exploratory descriptive qualitative design was used. Sixteen focus group discussions (FGDs) and 27 one-on-one interviews were conducted among students and their preceptors, respectively. Participants were recruited through purposive sampling. The inductive and deductive data analysis methods were used. The MAXQDA 2020 (Analytics Pro) software was used to arrange data, yielding 2179 data segments. RESULTS: Ten themes were identified: (1) basic knowledge of medicine, (2) first point of contact with all patients regardless of their presenting problems, (3) broad field of common conditions prevalent in the community, (4) dealing with the undifferentiated patient without a diagnosis, (5) stabilising emergencies before referral, (6) continuity, (7) coordinated and (8) holistic patient care, necessitating nurturance of doctor-patient relationship, (9) health promotion and disease prevention, and (10) operating mainly in primary health care settings. CONCLUSION: The understanding of 'generalist medical practice' in accordance with internationally accepted principles augurs well in training undergraduate medical students on the subject. However, interdepartmental collaboration on the subject needs further exploration.Contribution: The study's findings can be used as a guide upon which the students' preceptors and their students can reflect during the training in generalist medical practice.


Subject(s)
Schools, Medical , Students, Medical , Humans , South Africa , Physician-Patient Relations , Focus Groups
7.
S Afr Fam Pract (2004) ; 66(1): e1-e5, 2024 Mar 15.
Article in English | MEDLINE | ID: mdl-38572877

ABSTRACT

BACKGROUND:  Literature shows that in South Africa there are insufficient resources to meet mental healthcare needs. At general or district hospital level, the non-specialist doctor is often responsible for the holistic assessment and management of mental health service users. Such situations inevitably increase doctors' care load as they are required to treat across disciplines. We highlight the particular challenges faced by a community service (CS) doctor in this context. METHODS:  The presented case study formed part of a larger project that investigated public mental healthcare provision in the Eastern Cape province. Data were collected through a once-off semi-structured interview with the participant. The interview was transcribed and data analysed by utilising thematic analysis to yield results. RESULTS:  The study suggests that the CS doctor experiences being overloaded with duties, and feels overwhelmed in a healthcare context that lacks resources needed for service provision, which may lead to inadequate mental healthcare provision to public health service users. CONCLUSION:  Healthcare facilities in rural parts of the Eastern Cape province are in need of assistance. This in-depth account highlighted the consequences of working on the front line of a disadvantaged and under-resourced health system. The presented account can be interpreted as a cry for help by CS doctors for relevant authorities to improve access and provision of mental healthcare in the area.Contribution: The paper provides an exploration of the circumstances wherein mental healthcare is provided in rural parts of South Africa.


Subject(s)
Mental Health Services , Physicians , Humans , Delivery of Health Care , Health Facilities , Social Welfare
8.
BMC Health Serv Res ; 24(1): 470, 2024 Apr 15.
Article in English | MEDLINE | ID: mdl-38622621

ABSTRACT

INTRODUCTION: The COVID-19 pandemic unveiled huge challenges in health workforce governance in the context of public health emergencies in Africa. Several countries applied several measures to ensure access to qualified and skilled health workers to respond to the pandemic and provide essential health services. However, there has been limited documentation of these measures. This study was undertaken to examine the health workforce governance strategies applied by 15 countries in the World Health Organization (WHO) Africa Region in responding to the COVID-19 pandemic. METHODS: We extracted data from country case studies developed from national policy documents, reports and grey literature obtained from the Ministries of Health and other service delivery agencies. This study was conducted from October 2020 to January 2021 in 15 countries - Angola, Burkina Faso, Chad, Eswatini, Ghana, Guinea, Guinea Bissau, Ivory Coast, Liberia, Mali, Mauritania, Niger, Nigeria, Senegal and Togo. RESULTS: All 15 countries had national multi-sectoral bodies to manage the COVID-19 response and a costed national COVID-19 response plan. All the countries also reflected human resources for health (HRH) activities along the different response pillars. These activities included training for health workers, and budget for the recruitment or mobilization of additional health workers to support the response, and for provision of financial and non-financial incentives for health workers. Nine countries recruited additional 35,812 health workers either on a permanent or temporary basis to respond to the COVID-19 with an abridged process of recruitment implemented to ensure needed health workers are in place on time. Six countries redeployed 3671 health workers to respond to the COVID-19. The redeployment of existing health workers was reported to have impacted negatively on essential health service provision. CONCLUSION: Strengthening multi-sector engagement in the development of public health emergency plans is critical as this promotes the development of holistic interventions needed to improve health workforce availability, retention, incentivization, and coordination. It also ensures optimized utilization based on competencies, especially for the existing health workers.


Subject(s)
COVID-19 , Health Workforce , Humans , Pandemics , COVID-19/epidemiology , Senegal , World Health Organization
9.
Nutrients ; 16(7)2024 Mar 27.
Article in English | MEDLINE | ID: mdl-38613007

ABSTRACT

Selenium is an essential trace element that exists in inorganic forms (selenite and selenates) and organic forms (selenoamino acids, seleno peptides, and selenoproteins). Selenium is known to aid in the function of the immune system for populations where human immunodeficiency virus (HIV) is endemic, as studies suggest that a lack of selenium is associated with a higher risk of mortality among those with HIV. In a recent study conducted in Zambia, adults had a median plasma selenium concentration of 0.27 µmol/L (IQR 0.14-0.43). Concentrations consistent with deficiency (<0.63 µmol/L) were found in 83% of adults. With these results, it can be clearly seen that selenium levels in Southern Africa should be investigated to ensure the good health of both livestock and humans. The recommended selenium dietary requirement of most domesticated livestock is 0.3 mg Se/kg, and in humans above 19 years, anRDA (recommended daily allowance) of 55 mcg Se/per dayisis recommended, but most of the research findings of Southern African countries have recorded low levels. With research findings showing alarming low levels of selenium in soils, humans, and raw feed materials in Southern Africa, further research will be vital in answering questions on how best to improve the selenium status of Southern African soils and plants for livestock and humans to attain sufficient quantities.


Subject(s)
HIV Infections , Selenium , Adult , Humans , Animals , Africa, Southern , Zambia , Livestock , Soil
10.
Ecancermedicalscience ; 18: ed132, 2024.
Article in English | MEDLINE | ID: mdl-38566766

ABSTRACT

The rise in cancer rates in Sub-Saharan Africa (SSA), combined with limited access to Western pharmaceuticals, has sparked growing adoption of traditional and complementary medicine (T&CM) for cancer treatment in the region. However, many challenges exist, including the lack of reliable evidence-based research on these products, scarcity of standardized documentation as part of cancer registries, limited physician expertise, and negative effects on mortality. Nonetheless, herbal medicines also present opportunities for further research, development, and stakeholder education, potentially benefiting the regional healthcare systems in SSA countries and global health as whole. Recent trends highlight the willingness of patients to use mobile-based applications that provide accurate information on herbal therapeutics, reflecting the increasing adoption of internet and smart/mobile phone services in SSA. To maximize the potential benefits of traditional and complementary medicine, it is necessary to bridge the trust gap between the public, local practitioners, and Western healthcare providers. Sustained funding and policy support are needed to complement these initiatives. Our preliminary survey hopes to inspire the community and policymakers to embrace innovative solutions, fostering a forward-looking approach to cancer care in SSA.

11.
Article in English | MEDLINE | ID: mdl-38613471

ABSTRACT

Purpose: We investigated the health-related quality of life (HRQoL) of an adolescent and young adult (AYA)-aged South African childhood cancer survivor (CCS) cohort. Methods: Participants completed the Minneapolis-Manchester Quality of Life adolescent and adult forms. The overall Cronbach's alpha coefficients were 0.81 (adolescent form) and 0.92 (adult form). The scale-level content validity indexes were acceptable (0.88 and 0.89 for the adolescent and adult forms, respectively). The total domain and overall HRQoL scores were calculated. Results: Sixty-two survivors completed the adolescent form and 30 completed the adult form. The median age was 17.5 years (range 13-34 years), and the median time from diagnosis was 12 years (male:female ratio 1:1.2). Risk factors for poor physical functioning included age at study visit (p = 0.015), solid tumor diagnosis (p = 0.012), radiotherapy (p = 0.021), and surgery (p = 0.006). Six or more late effects impacted most domains negatively; severe late effects (p = 0.020) decreased physical functioning. Lower socioeconomic status was associated with poorer physical (p = 0.006) and cognitive (p = 0.047) functioning. The adult form cohort had poorer psychological (p = 0.014) and social functioning (p = 0.005) and body image (p = 0.016) than the adolescent form cohort. Conclusion: Older age, radiotherapy, surgery, solid tumor diagnosis, and the number and severity of late effects negatively influenced HRQoL in AYA-aged CCSs. A long-term follow-up (LTFU) risk stratification system should include HRQoL status to assist with holistic LTFU care.

12.
BMC Pregnancy Childbirth ; 24(1): 303, 2024 Apr 23.
Article in English | MEDLINE | ID: mdl-38654217

ABSTRACT

BACKGROUND: Maternal and neonatal mortality remains high in sub-Saharan Africa (SSA) with women having 1 in 36 lifetime risk. The WHO launched the new comprehensive recommendations/guidelines on antenatal care (ANC) in 2016, which stresses the essence of quality antenatal care. Consequently, the objective of this cross-sectional study is to investigate the quality of ANC in 13 SSA countries. METHODS: This is a cross-sectional study that is premised on pre-existing secondary data, spanning 2015 to 2021. Data for the study was obtained from the Measure DHS Programme and included a total of 79,725 women aged 15-49 were included. The outcome variable was quality ANC and it was derived as a composite variable from four main ANC services: blood pressure taken, urine taken, receipt of iron supplementation and blood sample taken. Thirteen independent variables were included and broadly categorised into individual and community-level characteristics. Descriptive statistics were used to present the proportion of women who had quality ANC across the respective countries. A two-level multilevel regression analysis was conducted to ascertain the direction of association between quality ANC and the independent variables. RESULTS: The overall average of women who had quality ANC was 53.8% [CI = 51.2,57.5] spanning from 82.3% [CI = 80.6,85.3] in Cameroon to 11% [CI = 10.0, 11.4] in Burundi. Women with secondary/higher education had higher odds of obtaining quality ANC compared with those without formal education [aOR = 1.23, Credible Interval [Crl] = 1.10,1.37]. Poorest women were more likely to have quality ANC relative to the richest women [aOR = 1.21, Crl = 1.14,1.27]. Married women were more likely to receive quality ANC relative to those cohabiting [aOR = 2.04, Crl = 1.94,3.05]. Women who had four or more ANC visits had higher odds of quality ANC [aOR = 2.21, Crl = 2.04,2.38]. Variation existed in receipt of quality ANC at the community-level [σ2 = 0.29, Crl = 0.24,0.33]. The findings also indicated that a 36.2% variation in quality ANC is attributable to community-level factors. CONCLUSION: To achieve significant improvement in the coverage of quality ANC, the focus of maternal health interventions ought to prioritise uneducated women, those cohabiting, and those who are unable to have at least four ANCs. Further, ample recognition should be accorded to the existing and potential facilitators and barriers to quality ANC across and within countries.


Subject(s)
Prenatal Care , Quality of Health Care , Humans , Female , Prenatal Care/statistics & numerical data , Prenatal Care/standards , Adult , Africa South of the Sahara , Cross-Sectional Studies , Pregnancy , Adolescent , Young Adult , Middle Aged , Health Surveys , Socioeconomic Factors
13.
Vet Clin North Am Exot Anim Pract ; 27(3): 561-571, 2024 Sep.
Article in English | MEDLINE | ID: mdl-38631920

ABSTRACT

This article explores the evolution, unique aspects, and challenges facing exotic animal practice in South Africa. This article delves into the slow emergence of dedicated exotic practices and the challenges faced by veterinarians in a vast and diverse landscape. The unique nature of the veterinary landscape is highlighted, emphasizing the impact of varied climates on species inhabiting different regions. The challenges are multifaceted, ranging from limited education infrastructure to dietary issues, unregulated feeds, and the complexities of herbal medicine use. The narrative explores client education challenges due to the scarcity of dedicated practices, underlining the importance of communication channels.


Subject(s)
Animals, Exotic , Veterinary Medicine , Veterinary Medicine/standards , Veterinary Medicine/trends , Education, Veterinary/standards , Climate , South Africa , Veterinary Drugs/standards , Veterinary Drugs/supply & distribution , Herbal Medicine/standards
14.
Am J Clin Nutr ; 119(3): 730-739, 2024 03.
Article in English | MEDLINE | ID: mdl-38432714

ABSTRACT

BACKGROUND: Vitamin B-12 status in human milk (HM) has critical implications for infant growth and development. Few studies have separately evaluated the effects of prenatal and postnatal maternal high-dose vitamin B-12 supplementation on HM vitamin B-12 concentration. OBJECTIVES: This randomized controlled trial aimed to assess the effects of prenatal and postnatal vitamin B-12 supplementation on HM vitamin B-12 at 6 wk and 7 mo postpartum. METHODS: Pregnant women were enrolled in Dar es Salaam, Tanzania, between 2001 and 2004. From recruitment (12-27 weeks of gestation) through 6 wk postpartum, participants were randomly assigned to daily oral multiple micronutrient supplementation or placebo. From 6 wk to 18 mo postpartum, a subset of participants was randomly assigned to a postnatal supplement or placebo. The supplement included 50 µg/d of vitamin B-12 and various other vitamins. HM vitamin B-12 concentrations were analyzed at 6 wk and 7 mo postpartum for 412 participants. RESULTS: The prevalence of HM vitamin B-12 of <310 pmol/L was 73.3% and 68.4% at 6 wk and 7 mo postpartum, respectively. Prenatal supplementation increased HM vitamin B-12 concentration (percent difference: 34.4; 95% CI: 17.0, 54.5; P < 0.001) at 6 wk; this effect was not present at 7 mo. Postnatal supplementation increased HM vitamin B-12 concentration (percent difference: 15.9; 95% CI: 1.91, 31.9; P = 0.025) at 7 mo. Effect modification between prenatal and postnatal supplementation on HM vitamin B-12 status at 7 mo was found, with the effects of prenatal and postnatal supplements more pronounced among those receiving control during the other period; the prenatal supplement had a greater effect with postnatal control, and the postnatal supplement had a greater effect with prenatal control. CONCLUSIONS: Prenatal maternal vitamin B-12 supplementation has benefits on short-term HM status, and postnatal maternal vitamin B-12 supplementation has benefits on long-term HM status. This trial was registered at clinicaltrials.gov as NCT00197548. https://clinicaltrials.gov/ct2/show/NCT00197548.


Subject(s)
Milk, Human , Vitamin B 12 , Pregnancy , Infant , Female , Humans , Tanzania , Vitamins , Dietary Supplements
15.
J Ethnopharmacol ; 328: 118053, 2024 Jun 28.
Article in English | MEDLINE | ID: mdl-38499257

ABSTRACT

ETHNOPHARMACOLOGICAL RELEVANCE: Citrullus colocynthis (L.) Schrad is a member of the Cucurbitaceae plant family which has been used in traditional medicine for the treatment of lung diseases such as asthma and bronchitis. AIM OF THE STUDY: The study was conducted to investigate antiproliferative and immunomodulating effects of C. colocynthis and isolated cucurbitacins on human T lymphocytes and lung epithelial cells in order to evaluate their potential in the treatment of airway diseases. MATERIALS AND METHODS: Different concentrations of an ethanolic extract of C. colocynthis fruits and cucurbitacins B (CuB), E (CuE) and E-glucopyranoside (CuE-Glu) were analysed for their cytotoxicity and immunomodulatory potential on Peripheral Blood Mononuclear Cells (PBMCs) of healthy donors and on the epithelial lung cancer cell line A549. Viability and proliferation were tested using WST1 and CFSE assays. Flow cytometric analysis of AnnexinV/PI staining was used to investigate cell death through apoptosis/necrosis. Effects on regulatory mechanisms of T lymphocytes, such as CD69 and CD25 marker activation, cytokine production of the cytokines interleukin 2 (IL2), tumor necrosis factor α (TNFα) and interferon γ (IFNy) were also analysed via flow cytometry. Influences on the activator protein 1 (AP1), nuclear factor of activated T-cells (NFAT) or nuclear factor 'kappa-light-chain-enhancer' of activated B-cells (NFκB) pathways were analysed in the Jurkat reporter cell line. Cytokine secretion in A549 cells stimulated with virus-like particles was analysed using the bead-based Legendplex™ assay. RESULTS: Non-toxic concentrations of C. colocynthis and CuE-Glu showed dose-dependent effects on viability and proliferation in both T lymphocytes and A549 cells. The extracts inhibited lymphocyte activation and suppressed T cell effector functions, which was also shown by lower production of cytokines IL2, TNFα and IFNy. A dose dependent inhibition of the pathways NFκB, NFAT and AP1 in Jurkat cells could be observed. In A549 cells, especially CuE and CuE-Glu showed inhibitory effects on cytokine production following a simulated viral infection. Unglycosylated cucurbitacins were more effective in suppressing the immune function in lymphocytes than glycosylated cucurbitacins, however this activity is limited to cytotoxic concentrations. CONCLUSION: In our study we could confirm the immunmodulating effect of C. colocynthis and cucurbitacins B, E and E-glucopyranoside in vitro by suppression of different pathways of inflammation and T cell proliferation. Activity in a lung cell model using a virus-like stimulation shows promise for further research regarding cucurbitacins in airway diseases.


Subject(s)
Citrullus colocynthis , Citrullus , Triterpenes , Humans , Cucurbitacins/pharmacology , Interleukin-2 , Leukocytes, Mononuclear , Tumor Necrosis Factor-alpha , Plant Extracts/pharmacology , Lymphocytes , Lung
16.
Pharmacol Res ; 202: 107138, 2024 Apr.
Article in English | MEDLINE | ID: mdl-38467241

ABSTRACT

Cancer incidence and mortality rates are increasing worldwide. Cancer treatment remains a real challenge for African countries, especially in sub-Saharan Africa where funding and resources are very limited. High costs, side effects and drug resistance associated with cancer treatment have encouraged scientists to invest in research into new herbal cancer drugs. In order to identify potential anticancer plants for drug development, this review aims to collect and summarize anticancer activities (in vitro/in vivo) and molecular mechanisms of sub-Saharan African medicinal plant extracts against cancer cell lines. Scientific databases such as ScienceDirect, Google Scholar and PubMed were used to search for research articles published from January 2013 to May 2023 on anticancer medicinal plants in sub-Saharan Africa. The data were analyzed to highlight the cytotoxicity and molecular mechanisms of action of these listed plants. A total of 85 research papers covering 204 medicinal plant species were selected for this review. These plants come from 57 families, the most dominant being the plants of the family Amaryllidaceae (16), Fabaceae (14), Annonaceae (10), Asteraceae (10). Plant extracts exert their anticancer activity mainly by inducing apoptosis and stopping the cell cycle of cancer cells. Several plant extracts from sub-Saharan Africa therefore have strong potential for the search for original anticancer phytochemicals. Chemoproteomics, multi-omics, genetic editing technology (CRISPR/Cas9), combined therapies and artificial intelligence tools are cutting edge emerging technologies that facilitate the discovery and structural understanding of anticancer molecules of medicinal plants, reveal their direct targets, explore their therapeutic uses and molecular bases.


Subject(s)
Neoplasms , Plants, Medicinal , Humans , Plants, Medicinal/chemistry , Artificial Intelligence , Plant Extracts/pharmacology , Plant Extracts/therapeutic use , Phytotherapy , Africa South of the Sahara , Neoplasms/drug therapy
17.
Trauma Violence Abuse ; : 15248380241241021, 2024 Mar 30.
Article in English | MEDLINE | ID: mdl-38554071

ABSTRACT

Commercial sexual exploitation of children (CSEC) has emerged as a critical child protection and public health concern in recent years. While the phenomenon is prevalent globally, its impact is compounded in sub-Saharan Africa owing to the cultural and socioeconomic challenges that leave many households in the region vulnerable. The present study synthesized existing evidence using the socioecological model as a guiding framework to assess the risk and protective factors associated with CSEC in sub-Saharan Africa. A protocol for the study was published in PROSPERO (CRD42022331832) with pre-specified inclusion and exclusion criteria. Studies were screened and extracted from eight databases: PsycINFO, Scopus, Web of Science, PROQUEST (Social Science Premium), PubMed, CINAHL, EMBASE, and MEDLINE via Ovid. After an initial screening of 4,377 papers, seven studies were found eligible for the final review. The review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guide for reporting systematic reviews. Included studies were appraised and rated using the Cambridge Quality Checklist and GRADE. Findings revealed risk factors, including adverse childhood experience and victimization, females aged 16 years and older, school dropouts, technology influence, child and parental alcohol use, and separation from caregivers. On the other hand, protective factors such as the number of female adolescents in a household, frequent health screening in schools, children being in school, and high parental monitoring were found to be associated with a lower risk of CSEC. Based on these findings, we recommend that interventions in sub-Saharan Africa adopt a holistic approach that addresses identified risk factors while harnessing protective factors to combat CSEC effectively.

18.
Ann Glob Health ; 90(1): 19, 2024.
Article in English | MEDLINE | ID: mdl-38463454

ABSTRACT

Background: Public-private partnerships (PPP) are one strategy to finance and deliver healthcare in lower-resourced settings. Lesotho's Queen 'Mamohato Memorial Hospital Integrated Network (QMMH-IN) was sub-Saharan Africa's first and largest integrated healthcare PPP. Objective: We assessed successes and challenges to performance of the QMMH-IN PPP. Methods: We conducted 26 semi-structured interviews among QMMH-IN executive leadership and staff in early 2020. Questions were guided by the WHO Health System Building Blocks Framework. We conducted a thematic analysis. Findings: Facilitators of performance included: 1) PPP leadership commitment to quality improvement supported by protocols, monitoring, and actions; 2) high levels of accountability and discipline; and 3) well-functioning infrastructure, core systems, workflows, and internal referral network. Barriers to performance included: 1) human resource management challenges and 2) broader health system and referral network limitations. Respondents anticipated the collapse of the PPP and suggested better investing in training incoming managerial staff, improving staffing, and expanding QMMH-IN's role as a training facility. Conclusions: The PPP contract was terminated approximately five years before its anticipated end date; in mid-2021 the government of Lesotho assumed management of QMMH-IN. Going forward, the Lesotho government and others making strategic planning decisions should consider fostering a culture of quality improvement and accountability; ensuring sustained investments in human resource management; and allocating resources in a way that recognizes the interdependency of healthcare facilities and overall system strengthening. Contracts for integrated healthcare PPPs should be flexible to respond to changing external conditions and include provisions to invest in people as substantively as infrastructure, equipment, and core systems over the full length of the PPP. Healthcare PPPs, especially in lower-resource settings, should be developed with a strong understanding of their role in the broader health system and be implemented in conjunction with efforts to ensure and sustain adequate capacity and resources throughout the health system.


Subject(s)
Delivery of Health Care , Public-Private Sector Partnerships , Humans , Lesotho , Hospitals , Referral and Consultation
19.
Afr J Prim Health Care Fam Med ; 16(1): e1-e8, 2024 Feb 13.
Article in English | MEDLINE | ID: mdl-38426783

ABSTRACT

BACKGROUND:  The African region produces a small proportion of all health research, including primary health care research. The SCOPUS database only lists the African Journal of Primary Health Care Family Medicine (PHCFM) and the South African Family Practice Journal (SAFP) in the field of family practice. AIM:  To review the nature of all original research (2020-2022) published in PHCFM and SAFP. SETTING:  African region. METHOD:  All 327 articles were included. Data were extracted into REDCap, using a standardised tool and exported to the Statistical Package for Social Sciences. RESULTS:  The median number of authors was 3 (interquartile range [IQR]: 2-4) and institutions and disciplines 1 (IQR: 1-2). Most authors were from South Africa (79.8%) and family medicine (45.3%) or public health (34.2%). Research focused on integrated health services (76.1%) and was mostly clinical (66.1%) or service delivery (37.9%). Clinical research addressed infectious diseases (23.4%), non-communicable diseases (24.6%) and maternal and women's health (19.4%). Service delivery research addressed the core functions of primary care (35.8%), particularly person-centredness and comprehensiveness. Research targeted adults and older adults (77.0%) as well as health promotion or disease prevention (38.5%) and treatment (30.9%). Almost all research was descriptive (73.7%), mostly surveys. CONCLUSION:  Future research should include community empowerment and multisectoral action. Within integrated health services, some areas need more attention, for example, children, palliative and rehabilitative care, continuity and coordination. Capacity building and support should enable larger, less-descriptive and more collaborative interdisciplinary studies with authors outside of South Africa.Contribution: The results highlight the strengths and weaknesses of family practice research in Africa.


Subject(s)
Delivery of Health Care , Family Practice , Aged , Child , Female , Humans , Family , Palliative Care , South Africa , Adult
20.
Sci Total Environ ; 926: 171850, 2024 May 20.
Article in English | MEDLINE | ID: mdl-38521255

ABSTRACT

Agriculture is expanding rapidly across the tropics. While cultivation can boost socioeconomic conditions and food security, it also threatens native ecosystems. Oil palm (Elaeis guineensis), which is grown pantropically, is the most productive vegetable oil crop worldwide. The impacts of oil palm cultivation have been studied extensively in Southeast Asia and - to a lesser extent - in Latin America but, in comparison, very little is known about its impacts in Africa: oil palm's native range, and where cultivation is expanding rapidly. In this paper, we introduce a large-scale research programme - the Sustainable Oil Palm in West Africa (SOPWA) Project - that is evaluating the relative ecological impacts of oil palm cultivation under traditional (i.e., by local people) and industrial (i.e., by a large-scale corporation) management in Liberia. Our paper is twofold in focus. First, we use systematic mapping to appraise the literature on oil palm research in an African context, assessing the geographic and disciplinary focus of existing research. We found 757 publications occurring in 36 African countries. Studies tended to focus on the impacts of palm oil consumption on human health and wellbeing. We found no research that has evaluated the whole-ecosystem (i.e., multiple taxa and ecosystem functions) impacts of oil palm cultivation in Africa, a knowledge gap which the SOPWA Project directly addresses. Second, we describe the SOPWA Project's study design and-using canopy cover, ground vegetation cover, and soil temperature data as a case study-demonstrate its utility for assessing differences between areas of rainforest and oil palm agriculture. We outline the socioecological data collected by the SOPWA Project to date and describe the potential for future research, to encourage new collaborations and additional similar projects of its kind in West Africa. Increased research in Africa is needed urgently to understand the combined ecological and sociocultural impacts of oil palm and other agriculture in this unique region. This will help to ensure long-term sustainability of the oil palm industry-and, indeed, all tropical agricultural activity-in Africa.


Subject(s)
Conservation of Natural Resources , Ecosystem , Humans , Plant Oils , Agriculture , Africa, Western
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