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1.
Gynecol Oncol Rep ; 53: 101388, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38590932

RESUMO

Introduction: Tissue expression of P16ink4A is correlated with cervical lesions. In this study we determined the association between serum P16ink4A concentrations and cervical lesions among women attending the cervical cancer clinic at Mbarara Regional Hospital (MRRH) South Western Uganda. Material and Methods: We recruited 90 cervical intraepithelial neoplasia (CIN) cases, 90 cervical cancer (CC) cases before treatment and 90 controls. Clinical and demographic data were recorded. Serum P16ink4A concentrations were measured by quantitative Elisa. Cases were confirmed with cytology and/or histology. Descriptive statistics and logistic regression were done with STATA 17 and P-values of <0.05 were considered statistically significant. Results: The mean serum P16ink4A concentration among CIN cases, CC cases and controls was 1.11(+/-0.66) ng/ml, 1.45(+/-1.11) ng/ml and 1.13(+/-0.61) ng/ml respectively (p = 0.008). 50 % of CIN cases and controls as well as 60 % of CC cases had P16ink4A concentration above 0.946 ng/ml. There were increased odds of CIN for serum P16ink4A though statistically insignificant (AOR: 1.11, p-value: 0.70). There was also a statistically significant reduction in odds of CC for serum P16ink4A (AOR: 0.55, p-value: 0.01). Conclusion: Serum P16ink4A may likely be associated with cervical lesions especially CC in our study population and this may aid detection of such lesions. Diagnostic utility studies for circulating P16ink4A in detection of cervical cancer are recommended.

2.
Integr Cancer Ther ; 23: 15347354241235583, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38445504

RESUMO

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.


Assuntos
Apocynaceae , Plantas Medicinais , Neoplasias da Próstata , Masculino , Humanos , África Oriental , Bases de Dados Factuais
3.
Lipids Health Dis ; 23(1): 3, 2024 Jan 06.
Artigo em Inglês | MEDLINE | ID: mdl-38184564

RESUMO

BACKGROUND: In Sub-Saharan Africa, the prevalence of dyslipidemia is on the rise, with studies showing dyslipidemia as a contributing factor to the progression of premalignant lesions to cervical cancer. In Uganda, cervical cancer and dyslipidemia are common health concerns, considering the increasing trends of dyslipidemia in the general population and inadequate information regarding dyslipidemia and cervical lesions. This study aimed to determine the prevalence of dyslipidemia and its association with precancerous and cancerous lesions of the cervix among women attending a cervical cancer clinic at the Uganda Cancer Institute. METHODS: This cross-sectional study was conducted from February to April 2022 among women with premalignant and malignant lesions of the cervix. Data on social demographics and health-seeking behaviours were collected using a pretested structured questionnaire after written informed consent had been obtained. Pap smear collection preceded visual inspection with acetic acid; cervical biopsies were collected appropriately from eligible participants; and cervical lesions were classified using the Bethesda system 2014. Serum lipids, total cholesterol (T.C.), high-density lipoprotein (HDLc), low-density lipoprotein (LDLc), and triglycerides (T.G.s) were analysed using the COBAS™ 6000 Clinical Chemistry Analyser. The associations were assessed using the chi-square test, and P ≤ 0.05 was considered statistically significant. RESULTS: The overall prevalence of dyslipidemia among women with cervical lesions was 118/159 (74%), and low HDLc was the most prevalent at 64.6% (95% CI 39.0-54.3). High T.C. (P = 0.05), high T.G.s (P = 0.011), and low HDL-c (P = 0.05) showed a significant association with precancerous lesions. High LDL-c (P = 0.019), high T.G.s (P = 0.02), and high T.G.s (P < 0.001) showed a statistically significant association with cancerous lesions. CONCLUSION: The prevalence of dyslipidemia was high, with high TC, T.G.s, and low HDL-c significantly associated with precancerous lesions. Also, elevated T.G.s and high LDLc were significantly associated with cancerous lesions. Women may benefit from dyslipidemia screening along with cervical cancer screening. WHAT THIS STUDY ADDS: The present study builds upon previous findings suggesting a link between dyslipidemia and cervical lesions by investigating the relationship between these two factors, specifically in women of this geographical location, where we need adequate information on these associations.


Assuntos
Dislipidemias , Hipertrigliceridemia , Lesões Pré-Cancerosas , Neoplasias do Colo do Útero , Humanos , Feminino , Colo do Útero , Neoplasias do Colo do Útero/epidemiologia , Projetos Piloto , Estudos Transversais , Detecção Precoce de Câncer , Prevalência , Lesões Pré-Cancerosas/epidemiologia , Dislipidemias/epidemiologia
4.
BMC Infect Dis ; 23(1): 857, 2023 Dec 06.
Artigo em Inglês | MEDLINE | ID: mdl-38057707

RESUMO

Every novel infection requires an assessment of the host response coupled with identification of unique biomarkers for predicting disease pathogenesis, treatment targets and diagnostic utility. Studies have exposed dysregulated inflammatory response induced by the novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) as significant predictor or cause of disease severity/prognosis and death. This study evaluated inflammatory biomarkers induced by SARS-CoV-2 in plasma of patients with varying disease phenotypes and healthy controls with prognostic or therapeutic potential. We stratified SARS-CoV-2 plasma samples based on disease status (asymptomatic, mild, severe, and healthy controls), as diagnosed by RT-PCR SARS-CoV-2. We used a solid phase sandwich and competitive Enzyme-Linked Immunosorbent Assay (ELISA) to measure levels of panels of immunological (IFN-γ, TNF-α, IL-6, and IL-10) and biochemical markers (Ferritin, Procalcitonin, C-Reactive Protein, Angiotensin II, Homocysteine, and D-dimer). Biomarker levels were compared across SARS-CoV-2 disease stratification. Plasma IFN-γ, TNF-α, IL-6, and IL-10 levels were significantly (P < 0.05) elevated in the severe SARS-CoV-2 patients as compared to mild, asymptomatic, and healthy controls. Ferritin, Homocysteine, and D-dimer plasma levels were significantly elevated in severe cases over asymptomatic and healthy controls. Plasma C-reactive protein and Angiotensin II levels were significantly (P < 0.05) higher in mild than severe cases and healthy controls. Plasma Procalcitonin levels were significantly higher in asymptomatic than in mild, severe cases and healthy controls. Our study demonstrates the role of host inflammatory biomarkers in modulating the pathogenesis of COVID-19. The study proposes a number of potential biomarkers that could be explored as SARS-CoV-2 treatment targets and possible prognostic predictors for a severe outcome. The comprehensive analysis of prognostic biomarkers may contribute to the evidence-based management of COVID-19 patients.


Assuntos
COVID-19 , SARS-CoV-2 , Humanos , COVID-19/diagnóstico , Interleucina-10 , Proteína C-Reativa/análise , Fator de Necrose Tumoral alfa , Interleucina-6 , Pró-Calcitonina , Uganda , Angiotensina II , Biomarcadores , Fenótipo , Ferritinas , Homocisteína
5.
BMC Complement Med Ther ; 23(1): 450, 2023 Dec 12.
Artigo em Inglês | MEDLINE | ID: mdl-38087230

RESUMO

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.


Assuntos
Neoplasias , Plantas Medicinais , Humanos , Uganda , Reprodutibilidade dos Testes , Medicinas Tradicionais Africanas , Conhecimentos, Atitudes e Prática em Saúde , Neoplasias/tratamento farmacológico
6.
J Glob Health ; 13: 06048, 2023 Nov 17.
Artigo em Inglês | MEDLINE | ID: mdl-37976409

RESUMO

Background: The coronavirus 2019 (COVID-19) pandemic has caused disruptions in the delivery and utilisation of cancer services. The impact of these interruptions is disproportionately borne by low- and middle-income countries in Sub-Saharan Africa (SSA). There are speculations of increased late-stage presentation and mortality as services are returning to the pre-pandemic state. This review aims to explore the extent to which the COVID-19 pandemic impacted cancer services across SSA and to identify innovations implemented across SSA to mitigate the impacts. Methods: Using database-specific search strategies, a systematic literature search was conducted in PubMed, Ovid (MedLine), Web of Science, and African Index Medicus. Eligible studies included original research, reports, perspectives and summaries of national or regional outcomes published in the English language. The primary outcome was changes in the delivery and utilisation of cancer prevention and screening, diagnosis, treatment and follow-up services. The secondary outcome was to identify implemented innovations to mitigate the impact of the pandemic on service delivery. Results: Out of the 167 articles identified in the literature search, 46 were included in the synthesis. A majority (95.7%) of the included articles described suspension and/or delay of screening, diagnosis, and treatment services, although two studies (4.3%) described the continuation of services despite the lockdown. Care was additionally impacted by transportation limitations, shortages of staff and personal protective equipment, disruption of the medication supply chain and patients' fears and stigma associated with contracting COVID-19. A major innovation was the use of telemedicine and virtual platforms for patient consultation and follow-up during the pandemic in SSA. Furthermore, drones and mobile applications were used for sample collection, medication delivery and scheduling of treatment. In some instances, medication routes and treatment protocols were changed. Conclusions: The delivery and utilisation of cancer services decreased substantially during the pandemic. Cancer centres initiated innovative methods of care delivery, including telehealth and drone use, with long-term potential to mitigate the impact of the pandemic on service delivery. Cancer centres in SSA must explore sustainable, facility or country-specific innovations as services return to the pre-pandemic state. Registration: The review was registered in PROSPERO with registration number CRD42022351455.


Assuntos
COVID-19 , Neoplasias , Humanos , Pandemias/prevenção & controle , COVID-19/epidemiologia , Controle de Doenças Transmissíveis , África Subsaariana/epidemiologia , Atenção à Saúde , Neoplasias/epidemiologia , Neoplasias/terapia
7.
Artigo em Inglês | MEDLINE | ID: mdl-37188437

RESUMO

OBJECTIVE: To compare cytogenetic abnormalities among people living with HIV (PLWH) with and without previous exposure to Mycobacterium tuberculosis (Mtb) (both latent tuberculosis infection [LTBI] and active tuberculosis [TB]). METHODS: Adult PLWH (≥18 years) were randomly selected at three HIV clinics in Uganda. Previous active TB was confirmed in the clinics' TB records. LTBI was defined as a positive QuantiFERON-TB Gold Plus assay. Participants' buccal mucosal exfoliated cells were examined (per 2000 cells) using the buccal micronucleus assay for chromosomal aberrations (micronuclei and/or nuclear buds), cytokinetic defects (binucleated cells), proliferative potential (normal differentiated cells and basal cell frequency) and/or cell death (condensed chromatin, karyorrhexis, pyknotic and karyolytic cells). RESULTS: Among 97 PLWH, 42 (43.3%) had exposure to Mtb;16 had previous successfully treated active TB and 26 had LTBI. PLWH with exposure to Mtb had a higher median number of normal differentiated cells (1806.5 [1757.0 - 1842.0] vs. 1784.0 [1732.0 - 1843.0], p = 0.031) and fewer karyorrhectic cells (12.0 [9.0 - 29.0] vs. 18.0 [11.0 - 30.0], p = 0.048) than those without. PLWH with LTBI had fewer karyorrhectic cells than those without (11.5 [8.0 - 29.0] vs. 18.0 [11 - 30], p = 0.006). CONCLUSION: We hypothesized that previous exposure to Mtb is associated with cytogenetic damage among PLWH. We found that exposure to Mtb is associated with more normal differentiated cells and less frequent karyorrhexis (a feature of apoptosis). It is unclear whether this increases the propensity for tumorigenesis.


Assuntos
Infecções por HIV , Tuberculose Latente , Mycobacterium tuberculosis , Tuberculose , Adulto , Humanos , Tuberculose/genética , Tuberculose Latente/microbiologia , Mycobacterium tuberculosis/genética , Infecções por HIV/complicações , Infecções por HIV/genética , Aberrações Cromossômicas
8.
JCO Glob Oncol ; 9: e2200218, 2023 02.
Artigo em Inglês | MEDLINE | ID: mdl-36795990

RESUMO

PURPOSE: To better understand the barriers to accessing standard-of-care radiation therapy (RT) for breast and cervical cancer in sub-Saharan Africa and their impact on outcomes. METHODS: A comprehensive literature search was completed with a medical librarian. Articles were screened by title, abstract, and full text. Included publications were analyzed for data describing barriers to RT access, available technology, and disease-related outcomes, and further grouped into subcategories and graded according to predefined criteria. RESULTS: A total of 96 articles were included: 37 discussed breast cancer, 51 discussed cervical cancer, and eight discussed both. Financial access was affected by health care system payment models and combined burdens of treatment-related costs and lost wages. Staffing and technology shortages limit the ability to expand service locations and/or increase capacity within existing centers. Patient factors including use of traditional healers, fear of stigma, and low health literacy decrease the likelihood of early presentation and completion of therapies. Survival outcomes are worse than most high- and middle-income countries and are affected by many factors. Side effects are similar to other regions, but these findings are limited by poor documentation capabilities. Access to palliative RT is more expeditious than definitive management. RT was noted to lead to feelings of burden, lower self-esteem, and worsened quality of life. CONCLUSION: Sub-Saharan Africa represents a diverse region with barriers to RT that differ on the basis of funding, available technology and staff, and community populations. Although long-term solutions must focus on building capacity by increasing the number of treatment machines and providers, short-term improvements should be implemented, such as interim housing for traveling patients, increased community education to reduce late-stage diagnoses, and use of virtual visits to avoid travel.


Assuntos
Neoplasias da Mama , Neoplasias do Colo do Útero , Feminino , Humanos , Acessibilidade aos Serviços de Saúde , Neoplasias da Mama/radioterapia , Neoplasias do Colo do Útero/radioterapia , Qualidade de Vida , África Subsaariana/epidemiologia
9.
Diagn Progn Res ; 7(1): 4, 2023 Jan 31.
Artigo em Inglês | MEDLINE | ID: mdl-36721194

RESUMO

BACKGROUND: Cervical cancer remains a public health problem worldwide, especially in sub-Saharan Africa. There are challenges in timely screening and diagnosis for early detection and intervention. Therefore, studies on cervical cancer and cervical intraepithelial neoplasia suggest the need for new diagnostic approaches including microRNA technology. Plasma/serum levels of microRNAs are elevated or reduced compared to the normal state and their diagnostic accuracy for detection of cervical neoplasms has not been rigorously assessed more so in low-resource settings such as Uganda. The aim of this systematic review was therefore to assess the diagnostic accuracy of serum microRNAs in detecting cervical cancer. METHODS: We will perform a systematic review following the Preferred Reporting Items for Systematic Review and Meta-Analysis Protocols (PRISMA-P) statement. We will search for all articles in MEDLINE/PubMed, Web of Science, Embase, and CINAHL, as well as grey literature from 2012 to 2022. Our outcomes will be sensitivity, specificity, negative predictive values, positive predictive values or area under the curve (Nagamitsu et al, Mol Clin Oncol 5:189-94, 2016) for each microRNA or microRNA panel. We will use the quality assessment of diagnostic accuracy studies (Whiting et al, Ann Intern Med 155:529-36, 2011) tool to assess the risk of bias of included studies. Our results will be reported according to the Preferred Reporting Items for Systematic Reviews and Meta-Analysis for Diagnostic Test Accuracy studies (PRISMA-DTA). We will summarise studies in a flow chart and then describe them using a structured narrative synthesis. If possible, we shall use the Lehmann model bivariate approach for the meta analysis USE OF THE REVIEW RESULTS: This systematic review will provide information on the relevance of microRNAs in cervical cancer. This information will help policy makers, planners and researchers in determining which particular microRNAs could be employed to screen or diagnose cancer of the cervix. SYSTEMATIC REVIEW REGISTRATION: This protocol has been registered in PROSPERO under registration number CRD42022313275.

10.
Ecancermedicalscience ; 17: 1628, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38414953

RESUMO

The 4th Uganda Conference on Cancer and Palliative Care was held from the 14th-15th September 2023. It was run jointly by the Uganda Cancer Institute and the Palliative Care Association of Uganda, in collaboration with the Ministry of Health. The conference was held at the Speke Resort, Munyonyo and 450 participants came together for a face-to-face conference following the virtual one held in 2021. It was an opportunity for all those working in the fields of cancer and palliative care to come together, to share lessons and learn from each other, as well as celebrate 30 years since specialist palliative care came to Uganda. The conference was officially opened by the Commissioner for Non-Communicable Diseases on behalf of the Minister of Health, who reiterated the Government's commitment to reducing the burden of cancer and expanding the provision of palliative care within Uganda. Dr Tedros Adhanom Ghebresus, the Director General of the World Health Organization welcomed participants to the conference, and the Assistant Bishop of Kampala Diocese, the Right Reverend Hannington Mutebi shared his experience of living with cancer. The conference was organised into six tracks: Innovations and new technologies; Education, advocacy, policy and law; Health promotion, prevention and early detection; Family and community involvement and empowerment; Clinical care and symptom management; and, Psychological, social and spiritual care. The themes of paediatrics, vulnerable populations, service development and research were integrated throughout the tracks, and workshops were held that explored topics such as governance, access to essential medicines, national data reporting, research and education, and aging and ageism. Throughout the conference there was a sense of optimism, of resilience and a commitment to the ongoing development of cancer and palliative care services within the country.

11.
J Cancer Policy ; 34: 100360, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-36089226

RESUMO

INTRODUCTION: Prostate cancer screening is a valuable public health tool in the early detection of prostate cancer. In this study, we aimed to determine the socioeconomic inequalities in the coverage of prostate cancer screening in Low and Middle-Income Countries (LMICs). METHODS: This was a retrospective analysis of men's recode data files that were collected by the Demographic and Health Surveys (DHS) in LMICs (Armenia, Colombia, Honduras, Kenya, Namibia, Dominican Republic, and the Philippines). We included surveys that were conducted from 2010 to 2020 and measured the coverage of prostate cancer screening and the study population was men aged 40 years or older. Socioeconomic inequality was measured using the Concertation Index (CIX) and the Slope Index of Inequality (SII). RESULTS: Eight surveys from seven countries were included in the study with a total of 47,863 men. The coverage of prostate cancer screening was below 50% in all the countries with lower rates in the rural areas compared to the urban areas. The pooled estimate for the coverage of screening was 10.4% [95% CI, 7.9-12.9%). Inequalities in the coverage of prostate cancer screening between the wealth quintiles were observed in the Democratic Republic, Honduras, and Namibia. Great variation in inequalities in the coverage of prostate cancer screening between rural and urban residents was observed in Colombia and Namibia. CONCLUSION: The coverage of prostate cancer screening was low in LMICs with variations in the coverage by the quintile of wealth (pro-rich) and type of place of residence (pro-urban). POLICY SUMMARY: To achieve the desired impact of prostate cancer screening services in LMICs, it is important that the coverage of screening programs targets men living in rural areas and those in low wealth quintiles.


Assuntos
Países em Desenvolvimento , Neoplasias da Próstata , Masculino , Humanos , Fatores Socioeconômicos , Detecção Precoce de Câncer , Estudos Retrospectivos , Neoplasias da Próstata/diagnóstico , Antígeno Prostático Específico , Demografia
12.
Noncoding RNA Res ; 7(2): 114-122, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35570854

RESUMO

Background: Human herpesvirus 8 (HHV-8) causes Kaposi's sarcoma (KS). Kaposi sarcoma in HIV/AIDS patients is referred to as epidemic KS and is the most common HIV-related malignancy worldwide. The lack of a diagnostic assay to detect latent and early-stage disease has increased disease morbidity and mortality. Serum miRNAs have previously been used as potential biomarkers of normal physiology and disease. In the current study, we profiled unique serum miRNAs in patients with epidemic KS to generate baseline data to aid in developing a miRNA-based noninvasive biomarker assay for epidemic KS. Methods: This was a comparative cross-sectional study involving 27 patients with epidemic KS and 27 HIV-positive adults with no prior diagnosis or clinical manifestation of KS. DNA and RNA were isolated from blood and serum collected from study participants. Nested PCR for circulating HHV-8 DNA was performed on the isolated DNA, whereas miRNA library preparation and sequencing for circulating miRNA were performed on the RNA samples. The miRge2 pipeline and EdgeR were used to analyse the sequencing data. Results: Fifteen out of the 27 epidemic KS-positive subjects (55.6%) tested positive for HHV-8 DNA, whereas only 3 (11.1%) out of the 27 HIV-positive, KS-negative subjects tested positive for HHV-8 DNA. Additionally, we found a unique miRNA expression signature in 49 circulating miRNAs in epidemic KS subjects compared to subjects with no epidemic KS, with 41 miRNAs upregulated and 8 miRNAs downregulated. Subjects with latent KS infection had a differential upregulation of circulating miR-193a compared to HIV-positive, KS-negative subjects for whom circulating HHV-8 DNA was not detected. Further analysis of serum from epidemic KS patients revealed a miRNA signature according to KS tumor status and time since first HIV diagnosis. Conclusions: This study reveals unique circulating miRNA profiles in the serum of patients with epidemic KS versus HIV-infected subjects with no KS, as well as in subjects with latent KS. Many of the dysregulated miRNAs in epidemic KS patients were previously reported to have crucial roles in KS infection and latency, highlighting their promising roles as potential biomarkers of latent or active KS infection.

13.
Oncol Ther ; 10(1): 185-193, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35128628

RESUMO

INTRODUCTION: Programmed death 1 (PD-1)/programmed death-ligand 1 (PD-L1)-targeted immunotherapies have become a new mode of treatment for several tumours; however, there is limited evidence on the expression and prognostic value of PD-1/PD-L1 in prostate cancer, especially in African men. METHODS: Plasma concentrations of PD-L1/PD-1 were assessed using enzyme-linked immunosorbent assay in patients with prostate cancer and normal healthy controls at the Uganda Cancer Institute. The associations between plasma PD-L1/PD-1 concentration levels and serum prostate-specific antigen (PSA) levels, Gleason scores, age, and body mass index (BMI) were determined. RESULTS: We found significant differences in the median plasma concentrations of PD-L1 and PD-1 immune checkpoint molecules between prostate cancer cases and normal healthy controls of 0.285 vs 0.035 (p = 0.001) and 0.596 vs 0.355 (p = 0.017), respectively. We found no significant association between age, serum PSA levels, BMI and Gleason scores, and PD-1 among patients with prostate cancer and controls. However, elevated levels of PD-L1 were significantly associated with higher Gleason scores among patients with prostate cancer (p = 0.014). CONCLUSIONS: Elevated PD-L1 levels were statistically significantly linked to high Gleason scores. These results may guide clinicians in assessing the prognosis of patients individually and selecting patients who will be suitable candidates for anti-PD-L1 immunotherapy.

14.
Future Oncol ; 18(6): 661-667, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-34881637

RESUMO

Background: The possible clinical application of specific cytokines and chemokines contributing to tumorigenesis and the clinical outcome of several cancers has been reported. However, less invasive and easily applicable biomarkers in prostate cancer diagnosis and prognostication are still lacking. This study assessed the levels of plasma cytokines in prostate cancer patients as potential biomarkers for noninvasive early diagnosis. Methods: The plasma levels of nine cytokines, IL-6, IL-8, IL-10, IL-1ß, IL-17A, IL-2, M-CSF, IL-12 and IFN-α, were detected by Luminex© liquid array-based multiplexed immunoassays in 56 prostate cancer patients on androgen deprivation therapy and radiotherapy and 27 normal healthy controls. Results: Levels of plasma proinflammatory cytokines IL-6 and IL-8 were markedly increased in prostate cancer patients compared with controls. There was, however, no significant difference in the concentrations of all cytokines in prostate cancer patients compared with controls. Increasing levels of IL-6 and IL-8 were significantly associated with high levels of plasma prostate-specific antigen (p < 0.05). Conclusion: Proinflammatory cytokines IL-6 and IL-8 are potential biomarkers for prostate cancer pathogenesis and could serve as markers of disease progression.


Assuntos
Adenocarcinoma/diagnóstico , Biomarcadores Tumorais/sangue , Interleucina-6/sangue , Interleucina-8/sangue , Antígeno Prostático Específico/sangue , Neoplasias da Próstata/diagnóstico , Adenocarcinoma/sangue , Adulto , Idoso , Estudos de Casos e Controles , Citocinas/sangue , Detecção Precoce de Câncer/métodos , Humanos , Imunoensaio , Masculino , Pessoa de Meia-Idade , Neoplasias da Próstata/sangue , Uganda
15.
AIDS Care ; 34(9): 1111-1117, 2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-34670451

RESUMO

Youth living with HIV (YLWHIV) have an increased cancer risk. Our objective is to describe the prevalence of medical record (MR) reported suspected cancers in a contemporary cohort of YLWHIV in Uganda that was assembled through MR reviews of patients 10 to 24 years old across 35 Ugandan HIV care health facilities. Clinical data were abstracted to identify suspected cancer cases and information about HIV care. Among 3728 YLWHIV, we identified eight suspected cancer cases. The most common suspected types were Kaposi sarcoma (n=4) followed by lymphoma (n=3). Challenges encountered in data abstraction were missing data for several variables and confirmatory cancer diagnostic information. In follow-up of suspected cases referred for diagnosis at the Uganda Cancer Institute (UCI), none had diagnosis records in UCI files. In addition, ∼18% of patients (n=686) were lost-to-follow-up (LTF) defined as not having returned to the clinic in ≥183 days and three patients died from presumed Kaposi sarcoma. Although our results suggest that cancer is rare in YLWHIV, the possibility that the cancer burden is higher cannot be excluded due to incomplete information in MRs and high LTF rates. Further, our study raises concern that patients referred for diagnosis are not accessing potential life-saving care.


Assuntos
Infecções por HIV , Neoplasias , Sarcoma de Kaposi , Adolescente , Adulto , África Subsaariana/epidemiologia , Criança , Infecções por HIV/complicações , Infecções por HIV/epidemiologia , Humanos , Neoplasias/epidemiologia , População Rural , Sarcoma de Kaposi/epidemiologia , Sarcoma de Kaposi/patologia , Uganda/epidemiologia , Adulto Jovem
16.
Lancet Haematol ; 8(10): e756-e769, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-34481552

RESUMO

Haematological malignancies account for almost 10% of all cancers diagnosed in sub-Saharan Africa, although the exact incidences and treatment outcomes are difficult to discern because population-based cancer registries in the region are still underdeveloped. More research on haematological malignancies in sub-Saharan Africa is required to establish whether these cancers have a natural history similar to those diagnosed in high-income countries, about which more is known. Several factors negatively affect the outcome of haematological malignancies in sub-Saharan Africa, showcasing a need for improved understanding of the clinicobiological profile of these cancers to facilitate prevention, early detection, diagnosis, and appropriate treatment through increased capacity building, infrastructure, community awareness, coordinated resource mobilisation, and collaboration across the world. The east African governments have pooled resources for common investments to tackle non-communicable diseases, developing the East Africa's Centres of Excellence for Skills and Tertiary Education project funded by the African Development Bank, an initiative that could be replicated for the care of haematological malignancies in other countries in sub-Saharan Africa. TRANSLATION: For the French translation of the abstract see Supplementary Materials section.


Assuntos
Neoplasias Hematológicas , Garantia da Qualidade dos Cuidados de Saúde , África Oriental/epidemiologia , Países em Desenvolvimento/estatística & dados numéricos , Neoplasias Hematológicas/epidemiologia , Humanos
17.
Future Oncol ; 17(21): 2735-2745, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-33855863

RESUMO

Cancer is one of the leading causes of death with 9.6 million deaths registered in 2018, of which 70% occur in Africa, Asia and Central and South America, the low-and middle-income countries (LMICs). The global annual expenditure on anticancer medicines increased from $96 billion in 2013 to $133 billion in 2017. This growth rate is several folds that of newly diagnosed cancer cases and therefore estimated to reach up to $200 billion by 2022. The Uganda Cancer Institute, Uganda's national referral cancer center, has increased access to cancer medicines through an efficient and cost-saving procurement system. The system has achieved cost savings of more than USD 2,000,000 on a total of 37 of 42 essential cancer medicines. This has resulted in 85.8% availability superseding the WHO's 80% target. All selected products were procured from manufacturers with stringent regulatory authority approval or a proven track record of quality products.


Assuntos
Antineoplásicos/economia , Países em Desenvolvimento/economia , Medicamentos Essenciais/provisão & distribuição , Acessibilidade aos Serviços de Saúde/organização & administração , Neoplasias/tratamento farmacológico , Antineoplásicos/uso terapêutico , Redução de Custos/métodos , Redução de Custos/estatística & dados numéricos , Custos de Medicamentos/estatística & dados numéricos , Medicamentos Essenciais/economia , Saúde Global/estatística & dados numéricos , Acessibilidade aos Serviços de Saúde/economia , Humanos , Neoplasias/economia , Uganda
18.
JCO Glob Oncol ; 7: 127-132, 2021 01.
Artigo em Inglês | MEDLINE | ID: mdl-33449804

RESUMO

The Uganda Cancer Institute, the sole national comprehensive cancer center in Uganda, has a long and rich history of clinical investigation and locally relevant cancer research. Given the increasing burden of breast cancer in Uganda and elsewhere in sub-Saharan Africa (SSA) and driven by the limited availability of immunohistochemistry (IHC), we launched a clinical trial aimed at evaluating locally available diagnostics to detect the presence of hormone receptors (estrogen receptor and progesterone receptor) and human epidermal growth factor receptor 2. Preliminary data from 32 women in the diagnostic component of the study reveal high sensitivity and specificity for estrogen receptor and progesterone receptor and high specificity for human epidermal growth factor receptor 2 when comparing reverse transcriptase polymerase chain reaction with the gold standard (IHC). Innovative diagnostic and treatment strategies are required to address the burden of breast cancer that is increasing throughout SSA. Given the costs, infrastructure, and trained personnel associated with IHC, alternative testing options (including reverse transcriptase polymerase chain reaction as tested in our study) may provide an expedited and cost-effective method to determine receptor testing in breast cancer. Clinical trials conducted in the local setting are critical to determining optimal strategies for effective breast cancer management in SSA.


Assuntos
Neoplasias da Mama , Neoplasias da Mama/diagnóstico , Neoplasias da Mama/terapia , Ensaios Clínicos como Assunto , Feminino , Humanos , Imuno-Histoquímica , Receptores de Estrogênio , Uganda/epidemiologia
19.
Cancer Med ; 10(2): 745-756, 2021 01.
Artigo em Inglês | MEDLINE | ID: mdl-33319508

RESUMO

BACKGROUND: In 2018, approximately 60,000 Ugandans were estimated to be suffering from cancer. It was also reported that only 5% of cancer patients access cancer care and 77% present with late-stage cancer coupled with low level of cancer health literacy in the population despite a wide coverage of primary healthcare facilities in Uganda. We aimed to contribute to reducing the unmet needs of cancer prevention and early detection services in Uganda through capacity building. METHODS: In 2017, we conducted two national and six regional cancer control stakeholders' consultative meetings. In 2017 and 2018, we trained district primary healthcare teams on cancer prevention and early detection. We also developed cancer information materials for health workers and communities and conducted a follow-up after the training. RESULTS: A total of 488 primary healthcare workers from 118 districts were trained. Forty-six health workers in the pilot East-central subregion were further trained in cervical, breast, and prostate cancer early detection (screening and early diagnosis) techniques. A total of 32,800 cancer information, education and communication materials; breast, cervical, prostate childhood and general cancer information booklets; health education guide, community cancer information flipcharts for village health teams and referral guidelines for suspected cancer were developed and distributed to 122 districts. Also, 16 public and private-not-for-profit regional hospitals, and one training institution received these materials. Audiovisual clips on breast, cervical, and prostate cancer were developed for mass and social media dissemination. A follow-up after six months to one year indicated that 75% of the districts had implemented at least one of the agreed actions proposed during the training. CONCLUSIONS: In Uganda, the unmet needs for cancer control services are enormous. However, building the capacity of primary healthcare workers to integrate prevention and early detection of cancer into primary health care based on low-cost options for low-income countries could contribute to reducing the unmet needs of cancer prevention and early detection in Uganda.


Assuntos
Fortalecimento Institucional/métodos , Atenção à Saúde/normas , Detecção Precoce de Câncer/normas , Avaliação das Necessidades/normas , Neoplasias/diagnóstico , Neoplasias/prevenção & controle , Atenção Primária à Saúde/organização & administração , Feminino , Educação em Saúde , Mão de Obra em Saúde , Humanos , Masculino , Inquéritos e Questionários , Uganda
20.
Ecancermedicalscience ; 15: 1333, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-35211202

RESUMO

The 3rd Uganda Conference on Cancer and Palliative Care was held in September 2021 with the theme: cancer and palliative care in COVID-19 and other challenging situations. It was hosted by the Uganda Cancer Institute and the Palliative Care Association of Uganda (UCI-PCAU). The conference was held virtually, with a mix of pre-recorded sessions, plenary sessions being broadcast live on television (TV) by the Uganda Broadcasting Corporation TV, live speakers at the studio and others presenting in real time via Zoom. The conference brought together >350 participants who participated on Zoom, along with those attending in person at the studio and those watching the plenary sessions on TV. At the heart of this joint UCI-PCAU conference was the commitment to not only continue but to improve the provision of cancer care and palliative care within Uganda. Key themes from the conference included: the importance of Universal Health Coverage; the impact of COVID-19 on the provision of cancer and palliative care; that both cancer care and palliative care are available in Uganda; education for all; the importance of working together to provide care and overcome challenges, e.g. through technology; the resilience shown by those working in cancer and palliative care; the grief experienced by so many people who have lost loved ones during the pandemic; the importance of good health seeking behaviour - prevention is better than cure; the challenge of funding; the need for health care equity for marginalised and vulnerable populations and finally we can't wait for the world to stop COVID-19 - COVID-19 is here to stay - we need to find solutions. The last few years have seen significant challenges due to the COVID-19 pandemic; however, despite this, cancer and palliative care service provision has continued. This conference, whilst unique and very different from previous conferences, was a great opportunity to share not only amongst each other, but also to share key messages with the public through the live broadcasting of the plenary sessions of the conference.

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