Review of Herbal Medicinal Plants Used in the Management of Cancers in the East Africa Region from 2019 to 2023.

BACKGROUND: In the East African region, herbal plants are essential in the treatment and control of cancer. Given the diverse ecological and cultural makeup of the regional states, it is likely that different ethnic groups will use the same or different plants for the same or different diseases. However, since 2019, this has not been compiled into a single study. PURPOSE: The study aimed to compile and record the medicinal plants utilized in East Africa from April 2019 to June 2023 to treat various cancer types. MATERIALS AND METHODS: The study examined 13 original studies that included ethnobotanical research conducted in East Africa. They were retrieved from several internet databases, including Google Scholar, Scopus, PubMed/Medline, Science Direct, and Research for Life. The study retrieved databases on plant families and species, plant parts used, preparation methods and routes of administration, and the country where the ethnobotanical field surveys were conducted. Graphs were produced using the GraphPad Prism 8.125 program (GraphPad Software, Inc., San Diego, CA). Tables and figures were used to present the data, which had been condensed into percentages and frequencies. RESULTS: A total of 105 different plant species from 45 different plant families were identified, including Asteraceae (14), Euphorbiaceae (12), Musaceae (8), and Apocynaceae (7). Uganda registered the highest proportion (46% of the medicinal plants used). The most commonly mentioned medicinal plant species in cancer management was Prunus africana. Herbs (32%), trees and shrubs (28%), and leaves (45%) constituted the majority of herbal remedies. Most herbal remedies were prepared by boiling (decoction) and taken orally (57%). CONCLUSION: East Africa is home to a wide variety of medicinal plant species that local populations and herbalists, or TMP, frequently use in the treatment of various types of cancer. The most frequently used families are Asteraceae and Euphorbiaceae, with the majority of species being found in Uganda. The most frequently utilized plant species is Prunus africana. Studies on the effectiveness of Prunus africana against other malignancies besides prostate cancer are required.

Medicinal plants used in the management of cancers by residents in the Elgon Sub-Region, Uganda.

BACKGROUND: In Uganda, medicinal plants have been utilized to treat a variety of ailments, including cancer. However, there is little information available about the medicinal plants used to treat cancer in the Elgon subregion. As a result, the current study documented the plant species used in the management of cancer in the Elgon sub-region. METHODS: Data were gathered by observation, self-administered questionnaires, interview guides, and guided field trips. Analyzing descriptive statistics and creating graphs were done using SPSS (version 21.0) and GraphPad Prism® version 9.0.0, respectively. Well-established formulae were used to calculate quantitative indices. The narratives were interpreted using major theories and hypotheses in ethnobotany. RESULTS: A total of 50 plant species from 36 families were documented, and herbal knowledge was mainly acquired through inheritance. Fabaceae and Asteraceae comprised more plant species used in herbal preparation. Most plants were collected from forest reserves (63%); herbal therapies were made from herbs (45%); and leaves were primarily decocted (43%). The most frequently used plants were Tylosema fassoglensis, Hydnora abyssinica, Azidarachata indica, Prunus Africana, Kigelia africana, Syzygium cumini, Hydnora africana, Rhoicissus tridentata, Albizia coriaria, and Plectranthus cuanneus. All the most commonly used plants exhibited a high preference ranking (60-86%) and reliability level (74.1-93.9%). Generally, the ICF for all the cancers treated by medicinal plants was close to 1 (0.84-0.95). CONCLUSIONS: The ten most commonly utilized plants were favored, dependable, and most important for treating all known cancers. As a result, more investigation is required to determine their phytochemistry, toxicity, and effectiveness in both in vivo and in vitro studies. This could be a cornerstone for the pharmaceutical sector to develop new anticancer medications.

Guideline Concordance of Treatment and Outcomes Among Adult Non-Hodgkin Lymphoma Patients in Sub-Saharan Africa: A Multinational, Population-Based Cohort.

BACKGROUND: Although non-Hodgkin lymphoma (NHL) is the 6th most common malignancy in Sub-Saharan Africa (SSA), little is known about its management and outcome. Herein, we examined treatment patterns and survival among NHL patients. METHODS: We obtained a random sample of adult patients diagnosed between 2011 and 2015 from 11 population-based cancer registries in 10 SSA countries. Descriptive statistics for lymphoma-directed therapy (LDT) and degree of concordance with National Comprehensive Cancer Network (NCCN) guidelines were calculated, and survival rates were estimated. FINDINGS: Of 516 patients included in the study, sub-classification was available for 42.1% (121 high-grade and 64 low-grade B-cell lymphoma, 15 T-cell lymphoma and 17 otherwise sub-classified NHL), whilst the remaining 57.9% were unclassified. Any LDT was identified for 195 of all patients (37.8%). NCCN guideline-recommended treatment was initiated in 21 patients. This corresponds to 4.1% of all 516 patients, and to 11.7% of 180 patients with sub-classified B-cell lymphoma and NCCN guidelines available. Deviations from guideline-recommended treatment were initiated in another 49 (9.5% of 516, 27.2% of 180). By registry, the proportion of all patients receiving guideline-concordant LDT ranged from 30.8% in Namibia to 0% in Maputo and Bamako. Concordance with treatment recommendations was not assessable in 75.1% of patients (records not traced (43.2%), traced but no sub-classification identified (27.8%), traced but no guidelines available (4.1%)). By registry, diagnostic work-up was in part importantly limited, thus impeding guideline evaluation significantly. Overall 1-year survival was 61.2% (95%CI 55.3%-67.1%). Poor ECOG performance status, advanced stage, less than 5 cycles and absence of chemo (immuno-) therapy were associated with unfavorable survival, while HIV status, age, and gender did not impact survival. In diffuse large B-cell lymphoma, initiation of guideline-concordant treatment was associated with favorable survival. INTERPRETATION: This study shows that a majority of NHL patients in SSA are untreated or undertreated, resulting in unfavorable survival. Investments in enhanced diagnostic services, provision of chemo(immuno-)therapy and supportive care will likely improve outcomes in the region.

From their own perspectives: a qualitative study exploring the perceptions of traditional health practitioners in northern Uganda regarding cancers, their causes and treatments.

BACKGROUND: Many cancer patients in the low- and middle-income countries seek care with traditional health practitioners (THPs) and use traditional and complementary medicines (T&CMs) for treatment of cancers. Little is known about the perceptions and influence of THPs on cancer patients' help-seeking and treatment decisions. We aimed to explore perceptions of THPs regarding cancers, cancer causes, and preferred treatments for cancers, in order to identify aspects that can inform interventions to improve cancer outcomes in Uganda. METHODS: We conducted this ethnographic study in northern Uganda. In-depth interviews were conducted at the respondents' homes in quiet, open places, and in the absence of none- respondents. Interviews were audio-recorded and transcribed verbatim within a week of the interviews. Thematic qualitative analysis approaches were used to identify themes and subthemes. RESULTS: We included 21 respondents in the study; most were male (16/21), married, with median age of 59 years (range 39 - 80). Most respondents perceived cancer as a new and challenging disease, while one respondent thought of cancer as a result of an imbalance within the body. Most confessed unawareness of the causes of cancers, but believed that cancer could result from the interplay of a number of factors including poor diets, ingestions of chemical agents, and assaults by the spirits of the dead. Some reported that cancers (especially of women's genital tracts) were sexually transmitted, or caused by accumulation of dirt. Only few healers treated cancers. Most respondents reported that they referred cancer patients to biomedical facilities, sometimes after they have first used their medicines. Most respondents hoped that collaborative research with scientists could help them identify potent T&CMs that cure cancers. CONCLUSION: Traditional health practitioners require training on cancer causes, symptoms and signs, and the necessity for prompt initiation of effective treatments in order to improve cancer outcomes. The predisposition of the majority of respondents to refer cancer patients to biomedical services sets a fertile ground for meaningful cooperation between biomedical and traditional health practices. The national health system in the low- and middle-income countries could formally recognize traditional health practices as a component of the national healthcare system, and encourage the two to practice side by side.

Integration of HIV and cervical cancer screening perceptions of healthcare providers and policy makers in Uganda.

BACKGROUND: HIV-positive women have an increased risk of developing cervical cancer (CC) compared to the HIV-negative women. Despite this, HIV and CC screening programs in many developing countries have remained disintegrated. Therefore, the objective of the study was to explore perceptions of healthcare providers (HCP) and policy makers (PM) about integration of HIV and CC screening services in Uganda. METHODS: This was a qualitative study conducted among 16 participants comprising of 12 healthcare providers and 4 policy makers in Uganda. Data were collected through individual interviews. Participants were purposively selected from different level of health facilities with clinics for HIV and CC screening services. Content analysis method was used to analyze the data. RESULTS: Three themes emerged from the data, namely appreciating benefits of integration, worrying about the limited health system capacity and potential consequences of integration and feeling optimistic about integration under improved health system conditions. The benefits embraced the women - particularly the HIV-positive women- but also men, healthcare providers and the health system or the government. There were worries that HIV stigma and shortage of healthcare workers would affect the effective delivery of the integrated program. CONCLUSION: Integration of HIV and CC screening can offer manifold benefits to all stakeholders in the health system, more so to the women. However, its feasibility in developing countries such as Uganda will most likely be hampered by weak and inefficient health systems. Therefore, when considering HIV and CC screening integration, it is important not to only recognize the benefits but also take into account resources requirements for addressing the existing weaknesses and inefficiencies in the health systems such as limited infrastructure, insufficient drugs and supplies, inadequate and poorly motivated healthcare workers.

Mind the gaps: a qualitative study of perceptions of healthcare professionals on challenges and proposed remedies for cervical cancer help-seeking in post conflict northern Uganda.

BACKGROUND: There are limited data on perceptions of health professionals on challenges faced by cervical cancer patients seeking healthcare in the developing countries. We explored the views of operational level health professionals on perceived barriers to cervical screening and early help-seeking for symptomatic cervical cancer and the proposed remedies to the challenges. METHODS: Fifteen key informant interviews were held with health professionals including medical directors, gynecologists, medical officers, nurses and midwives in the gynecology and obstetrics departments of two hospitals in northern Uganda during August 2012 to April 2013. We used content analysis techniques to analyze the data. RESULTS: Health professionals' perceived barriers to cervical cancer care included: (i) patients and community related barriers e.g. lack of awareness on cervical cancer and available services, discomfort with exposure of women's genitals and perceived pain during pelvic examinations, and men's lack of emotional support to women (ii) individual healthcare professional's challenges e.g. inadequate knowledge and skills about cervical cancer management; (iii) health facility related barriers e.g. long distances and lack of transport to cervical cancer screening and care centers, few gynecologists and lack of pathologists, delayed histology results, lack of established palliative care services and inadequate pain control; and (iv) health policy challenges e.g. lack of specialized cancer treatment services, and lack of vaccination for human papilloma virus. Other challenges included increased number of cervical cancer patients and late stage of cervical cancer at presentations. CONCLUSIONS: Operational level healthcare professionals in northern Uganda reported several practical challenges facing cervical cancer care that influence their decisions, management goals and practices. The challenges and proposed remedies can inform targeted interventions for early detection, management, and control of cervical cancer in Uganda.

The roles of national cancer research institutions in evolving a comprehensive cancer control program in a developing country: experience from Uganda.

With the increasing global cancer burden, especially in the developing world, the World Health Organization made the Framework Convention on Tobacco Control and development of comprehensive national cancer control programs as key responses. Most countries in Africa lack the capacity to evolve a national cancer control program. This is mainly due to lack of resources. However, established cancer institutions could be used as resources for evolving a comprehensive national cancer program. Moreover, this has the appeal of presenting cancer control as an essential part of the public health response to disease. In Uganda, two cancer research institutions, the Uganda Cancer Institute and Kampala Cancer Registry, have contributed to initiation of a cancer control program. They have provided evidence on disease causation, burden and strategy for prevention, treatment and community involvement. Further, these institutions have created opportunities for international partnerships and collaborations in cancer research. Given the challenges of evolving a national cancer control program, each country should look internally for opportunities in existing cancer institutions as starting points for developing a national program. Evidence for feasibility should be provided to governments to help in formulating policies supportive of cancer control in these countries.

Part II: Cancer in Indigenous Africans--causes and control.

Africa has contributed substantial knowledge to the understanding of certain risk factors for cancer, such as the role of several infectious agents (eg, viruses, bacteria, and parasites), aflatoxins, and certain lifestyle factors. Although the relative importance of many lifestyle factors is becoming better understood in developed countries, more work is needed to understand the importance of these factors in different African settings. In view of the substantial genetic diversity in Africa, it would be prudent not to generalize too widely from one place to the next. We argue that risks for several exposures related to certain cancers differ from the patterns seen in developed countries. In this paper, we review the current knowledge of causes of some of the leading cancers in Africa, namely cancers of the cervix, breast, liver, prostate, stomach, bladder, and oesophagus, Kaposi's sarcoma, non-Hodgkin lymphoma, and tobacco-related cancers. There are no comprehensive cancer-control programmes in Africa and provision of radiotherapy, chemotherapy, and palliation is inadequate. Certain cost-effective interventions, such as tobacco control, provision of antiretroviral therapy, and malarial and bilharzial control, can cause substantial decreases in the burden of some of these cancers. Vaccinations against hepatitis B and oncogenic human papilloma viruses can make the biggest difference, but very few countries in Africa can afford these vaccines without substantial subsidization.