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1.
BMC Genomics ; 25(1): 718, 2024 Jul 25.
Artigo em Inglês | MEDLINE | ID: mdl-39054474

RESUMO

INTRODUCTION: Our understanding of particular gut microbiota members such as Bifidobacterium and Enterococcus in low-middle-income countries remains very limited, particularly early life strain-level beneficial traits. This study addresses this gap by exploring a collection of bacterial strains isolated from the gut of Zimbabwean infants; comparing their genomic characteristics with strains isolated from infants across North America, Europe, and other regions of Africa. MATERIALS AND METHOD: From 110 infant stool samples collected in Harare, Zimbabwe, 20 randomly selected samples were used to isolate dominant early-life gut microbiota members Bifidobacterium and Enterococcus. Isolated strains were subjected to whole genome sequencing and bioinformatics analysis including functional annotation of carbohydrates, human milk oligosaccharide (HMO) and protein degradation genes and clusters, and the presence of antibiotic resistance genes (ARGs). RESULTS: The study observed some location-based clustering within the main five identified taxonomic groups. Furthermore, there were varying and overall species-specific numbers of genes belonging to different GH families encoded within the analysed dataset. Additionally, distinct strain- and species-specific variances were identified in the potential of Bifidobacterium for metabolizing HMOs. Analysis of putative protease activity indicated a consistent presence of gamma-glutamyl hydrolases in Bifidobacterium, while Enterococcus genomes exhibited a high abundance of aspartyl peptidases. Both genera harboured resistance genes against multiple classes of antimicrobial drugs, with Enterococcus genomes containing a higher number of ARGs compared to Bifidobacterium, on average. CONCLUSION: This study identified promising probiotic strains within Zimbabwean isolates, offering the potential for early-life diet and microbial therapies. However, the presence of antibiotic resistance genes in infant-associated microbes raises concerns for infection risk and next-stage probiotic development. Further investigation in larger cohorts, particularly in regions with limited existing data on antibiotic and probiotic use, is crucial to validate these initial insights. IMPACT STATEMENT: This research represents the first investigation of its kind in the Zimbabwean context, focusing on potential probiotic strains within the early-life gut microbiota. By identifying local probiotic strains, this research can contribute to the development of probiotic interventions that are tailored to the Zimbabwean population, which can help address local health challenges and promote better health outcomes for infants. Another essential aspect of the study is the investigation of antimicrobial resistance genes present in Zimbabwean bacterial strains. Antimicrobial resistance is a significant global health concern, and understanding the prevalence and distribution of resistance genes in different regions can help inform public health policies and interventions.


Assuntos
Bifidobacterium , Enterococcus , Microbioma Gastrointestinal , Humanos , Zimbábue , Lactente , Microbioma Gastrointestinal/genética , Enterococcus/genética , Enterococcus/efeitos dos fármacos , Enterococcus/isolamento & purificação , Bifidobacterium/genética , Bifidobacterium/isolamento & purificação , Bifidobacterium/efeitos dos fármacos , Genômica , Genoma Bacteriano , Fezes/microbiologia , Sequenciamento Completo do Genoma , Estudos de Coortes , Filogenia
2.
Afr J Reprod Health ; 28(6): 25-38, 2024 06 30.
Artigo em Inglês | MEDLINE | ID: mdl-38979653

RESUMO

This study focused on the psychological, social, and cultural dimensions of infertility among women with infertility in Harare Urban who have utilised traditional healthcare systems to address their infertility problem. It also emphasises their coping strategies for dealing with the challenges encountered along the infertile journey. This was a qualitative study using a phenomenological approach, focusing on the experiences of five women. Data from the interviews was analysed using a simplified version of Hycner's (1985) five-step explication process. The study produced three main themes: psychological experiences, socio-cultural experiences, and coping experiences, along with seven sub-themes. The results showed that women experienced intense distress, sorrow, and self-blame because of their inability to have children, further compounded by the stigma they faced from their families and communities. Women with infertility are subjected to derogatory labels, social contempt, ridicule, and being undervalued, which leads them to develop coping strategies to endure the adverse encounters. These coping mechanisms can have either positive or negative effects on their overall welfare. The exploration of psychological, socio-cultural factors, and coping mechanisms of women with infertility problems' presents a chance to co-create interventions that empower them.


Cette étude s'est concentrée sur les dimensions psychologiques, sociales et culturelles de l'infertilité chez les femmes infertiles de Harare Urban qui ont utilisé les systèmes de santé traditionnels pour résoudre leur problème d'infertilité. Il met également l'accent sur leurs stratégies d'adaptation pour faire face aux défis rencontrés tout au long du parcours stérile. Il s'agissait d'une étude qualitative utilisant une approche phénoménologique, axée sur les expériences de cinq femmes. Les données des entretiens ont été analysées à l'aide d'une version simplifiée du processus d'explication en cinq étapes de Hycner (1985). L'étude a produit trois thèmes principaux : les expériences psychologiques, les expériences socioculturelles et les expériences d'adaptation, ainsi que sept sous-thèmes. Les résultats ont montré que les femmes éprouvaient une détresse, un chagrin et une culpabilité intenses en raison de leur incapacité à avoir des enfants, encore aggravés par la stigmatisation à laquelle elles étaient confrontées de la part de leur famille et de leur communauté. Les femmes infertiles sont soumises à des étiquettes désobligeantes, au mépris social, au ridicule et à la sous-évaluation, ce qui les amène à développer des stratégies d'adaptation pour supporter les rencontres défavorables. Ces mécanismes d'adaptation peuvent avoir des effets positifs ou négatifs sur leur bien-être global. L'exploration des facteurs psychologiques, socioculturels et des mécanismes d'adaptation des femmes souffrant de problèmes d'infertilité présente une opportunité de co-créer des interventions qui les autonomisent.


Assuntos
Adaptação Psicológica , Infertilidade Feminina , Pesquisa Qualitativa , Estigma Social , Humanos , Feminino , Adulto , Zimbábue , Infertilidade Feminina/psicologia , Infertilidade Feminina/terapia , População Urbana , Estresse Psicológico/psicologia , Infertilidade/psicologia , Infertilidade/terapia
3.
Afr J Reprod Health ; 28(7): 61-70, 2024 Jul 31.
Artigo em Inglês | MEDLINE | ID: mdl-39097979

RESUMO

Infertility has a significant impact on the lives of women. Therefore, affected women often consider the treatment options available to deal with their condition, including traditional healthcare services (THS). The aim of this phenomenological study was to explore the lived experiences of women with infertility problems who sought help from traditional health practitioners in Harare, Zimbabwe. Data from interviews with five women with infertility was explicated using a simplified version of Hycner (1985) five step explication process. Two major themes and eight sub themes emerged from the findings. The major themes were traditional diagnosis experiences and traditional treatment experiences. Consultation and divination were the diagnosis methods experienced by the women with infertility. The THS offered comprehensive management of infertility through couples therapy, as well as pre- and post-natal therapies, which include lifestyle counselling. The findings also showed that women with infertility commonly receive concurrent treatment, including both allopathic and traditional medicine. This presents an opportunity to explore the convergence of traditional and allopathic approaches in the management of infertility in women.


L'infertilité a un impact significatif sur la vie des femmes. Par conséquent, les femmes affectées envisagent souvent les options de traitement disponibles pour faire face à leur maladie, y compris les services de santé traditionnels (THS). Le but de cette étude phénoménologique était d'explorer les expériences vécues de femmes souffrant de problèmes d'infertilité qui ont demandé l'aide de praticiens de santé traditionnels à Harare, au Zimbabwe. Les données provenant d'entretiens avec cinq femmes infertiles ont été expliquées à l'aide d'une version simplifiée du processus d'explication en cinq étapes de Hycner (1985). Deux thèmes majeurs et huit sous-thèmes ont émergé des résultats. Les thèmes principaux étaient les expériences de diagnostic traditionnel et les expériences de traitement traditionnel. La consultation et la divination étaient les méthodes de diagnostic expérimentées par les femmes infertiles. Le THS proposait une prise en charge complète de l'infertilité grâce à une thérapie de couple, ainsi que des thérapies prénatales et postnatales, qui comprennent des conseils sur le mode de vie. Les résultats ont également montré que les femmes souffrant d'infertilité reçoivent généralement un traitement concomitant, comprenant à la fois la médecine allopathique et la médecine traditionnelle. Cela présente l'occasion d'explorer la convergence des approches traditionnelles et allopathiques dans la gestion de l'infertilité chez la femme.


Assuntos
Infertilidade Feminina , Medicinas Tradicionais Africanas , Humanos , Feminino , Zimbábue , Adulto , Infertilidade Feminina/psicologia , Infertilidade Feminina/terapia , Pesquisa Qualitativa , População Urbana , Entrevistas como Assunto
4.
Afr J Reprod Health ; 28(1): 110-122, 2024 Feb 28.
Artigo em Inglês | MEDLINE | ID: mdl-38308559

RESUMO

Female infertility is a health and social problem that traditional health practitioners (THPs) have been managing in African communities. This study explored the experiences of THPs in the management of female infertility, specifically focusing on their understanding, diagnosis, and treatment methods for female infertility. This was a qualitative study targeting six THPs in Harare urban areas registered with the Traditional Medical Practitioners Council (TMPC) in Zimbabwe. The Consolidated Criteria for Reporting Qualitative Research (COREQ) guidelines were followed in the description of the study design, analysis and presentation of findings. The findings revealed that the etiology of female infertility was attributed to biomedical, lifestyle, spiritual, and male factors. Management of infertility depended on the type of THP. Spirit mediums relied on divination and dreams to diagnose and treat female infertility. Herbalists focused on the physical evidence provided by the client through history taking. THPs had a client referral system within their TMPC network. All THPs ultimately used medicinal plants for treating female infertility. THPs play an important role in the management of female infertility. Understanding their contributions to the management of female infertility provides an opportunity to obtain insight into their practices, thus identifying areas that responsible Ministries can use to strengthen traditional health care systems and ultimately improve reproductive health care for women in African communities.


L'infertilité féminine est un problème sanitaire et social que les tradipraticiens (PTS) gèrent dans les communautés africaines. Cette étude a exploré les expériences des THP dans la gestion de l'infertilité féminine, en se concentrant spécifiquement sur leur compréhension, leur diagnostic et leurs méthodes de traitement de l'infertilité féminine. Il s'agissait d'une étude qualitative ciblant six PTH des zones urbaines de Harare enregistrés auprès du Conseil des médecins traditionnels (TMPC) au Zimbabwe. Les lignes directrices COREQ (Consolidated Criteria for Reporting Qualitative Research) ont été suivies dans la description de la conception de l'étude, de l'analyse et de la présentation des résultats. Les résultats ont révélé que l'étiologie de l'infertilité féminine était attribuée à des facteurs biomédicaux, liés au mode de vie, spirituels et masculins. La prise en charge de l'infertilité dépendait du type de THP. Les médiums spirituels s'appuyaient sur la divination et les rêves pour diagnostiquer et traiter l'infertilité féminine. Les herboristes se sont concentrés sur les preuves matérielles fournies par le client grâce à l'anamnèse. Les THP disposaient d'un système de référencement des clients au sein de leur réseau TMPC. Tous les THP utilisaient finalement des plantes médicinales pour traiter l'infertilité féminine. Les THP jouent un rôle important dans la gestion de l'infertilité féminine. Comprendre leurs contributions à la gestion de l'infertilité féminine offre l'opportunité d'avoir un aperçu de leurs pratiques, identifiant ainsi les domaines que les ministères responsables peuvent utiliser pour renforcer les systèmes de santé traditionnels et, à terme, améliorer les soins de santé reproductive pour les femmes des communautés africaines.


Assuntos
Infertilidade Feminina , Profissionais de Medicina Tradicional , Humanos , Feminino , Infertilidade Feminina/etiologia , Infertilidade Feminina/terapia , Zimbábue , Pesquisa Qualitativa , Atenção à Saúde , Medicinas Tradicionais Africanas/métodos
5.
Virol J ; 18(1): 30, 2021 01 29.
Artigo em Inglês | MEDLINE | ID: mdl-33514390

RESUMO

INTRODUCTION: Despite being a leading infectious cause of childhood disability globally, testing for cytomegalovirus (CMV) infections in pregnancy is generally not done in Sub-Sahara Africa (SSA), where breastfeeding practice is almost universal. Whilst CMV and human immunodeficiency virus (HIV) are both endemic in SSA, the relationship between antenatal plasma CMV-DNA, HIV-1-RNA levels and HIV-1-mother to child transmission (MTCT) including pregnancy outcomes remains poorly described. METHODS: Pregnant women at least 20 weeks' gestational age at enrolment were recruited from relatively poor high-density suburbs in Harare, Zimbabwe. Mother-infant dyads were followed up until 6 months postpartum. In a case-control study design, we tested antenatal plasma CMV-DNA levels in all 11 HIV-1 transmitting mothers, as well as randomly selected HIV-infected but non-transmitting mothers and HIV-uninfected controls. CMV-DNA was detected and quantified using polymerase chain reaction (PCR) technique. Antenatal plasma HIV-1-RNA load was quantified by reverse transcriptase PCR. Infants' HIV-1 infection was detected using qualitative proviral DNA-PCR. Predictive value of antenatal plasma CMV-DNAemia (CMV-DNA of > 50 copies/mL) for HIV-1-MTCT was analyzed in univariate and multivariate regression analyses. Associations of CMV-DNAemia with HIV-1-RNA levels and pregnancy outcomes were also explored. RESULTS: CMV-DNAemia data were available for 11 HIV-1 transmitting mothers, 120 HIV-infected but non-transmitting controls and 46 HIV-uninfected mothers. In a multivariate logistic regression model, we found a significant association between CMV-DNAemia of > 50 copies/mL and HIV-1 vertical transmission (p = 0.035). There was no difference in frequencies of detectable CMV-DNAemia between HIV-infected and -uninfected pregnant women (p = 0.841). However, CMV-DNA levels were higher in immunosuppressed HIV-infected pregnant women, CD4 < 200 cells/µL (p = 0.018). Non-significant associations of more preterm births (< 37 weeks, p = 0.063), and generally lower birth weights (< 2500 g, p = 0.450) were observed in infants born of HIV-infected mothers with CMV-DNAemia. Furthermore, in a multivariate analysis of HIV-infected but non-transmitting mothers, CMV-DNAemia of > 50 copies/mL correlated significantly with antenatal plasma HIV-1-RNA load (p = 0.002). CONCLUSION: Antenatal plasma CMV-DNA of > 50 copies/mL may be an independent risk factor for HIV-1-MTCT and higher plasma HIV-1-RNA load, raising the possibility that controlling antenatal CMV-DNAemia might improve infant health outcomes. Further studies with larger sample sizes are warranted to confirm our findings.


Assuntos
Infecções por Citomegalovirus/sangue , Citomegalovirus/genética , DNA Viral/sangue , Infecções por HIV/transmissão , Transmissão Vertical de Doenças Infecciosas/prevenção & controle , Adolescente , Adulto , Estudos de Casos e Controles , Estudos de Coortes , Feminino , HIV-1/genética , Humanos , Lactente , Recém-Nascido , Mães , Gravidez , Complicações Infecciosas na Gravidez/virologia , Resultado da Gravidez , Diagnóstico Pré-Natal/estatística & dados numéricos , Adulto Jovem , Zimbábue
6.
AIDS Care ; 32(5): 537-545, 2020 05.
Artigo em Inglês | MEDLINE | ID: mdl-31269801

RESUMO

Lack of condom use by married or cohabiting couples in populations with high rates of HIV infection has become a significant public health issue. This study investigated whether an HIV risk-reduction intervention (RRI) would increase condom use when delivered to serodiscordant couples as a unit. Of the 62 couples that were screened, 30 serodiscordant couples were enrolled in the study, and randomized 2:1 to an immediate intervention-waitlist control study. The 12-week intervention focused on communication, problem-solving, and negotiation skills. Participants were assessed at baseline, three and six months after the intervention. The main outcome measures were consistent condom use, HIV seroconversion and fidelity to the programme. The use of condoms increased for both the intervention and control groups after receiving a 12-week RRI. Group comparisons showed a significant difference at three months, with a significantly higher mean proportion of condom-protected sex acts (p = 0.0119) between the control and intervention groups, the later showing an increase in condom use. No seroconversion was detected, and the overall retention rate of participants was 83.33%. Counselling heterosexual couples as a unit prompted an increase in condom use, but sustained condom use remains a challenge.


Assuntos
Preservativos/estatística & dados numéricos , Infecções por HIV/prevenção & controle , Comportamento de Redução do Risco , Sexo Seguro/estatística & dados numéricos , Adulto , Comunicação , Aconselhamento , Feminino , Infecções por HIV/epidemiologia , Infecções por HIV/transmissão , Humanos , Masculino , Avaliação de Processos e Resultados em Cuidados de Saúde , Parceiros Sexuais , África do Sul/epidemiologia
7.
BMC Infect Dis ; 20(1): 725, 2020 Oct 02.
Artigo em Inglês | MEDLINE | ID: mdl-33008316

RESUMO

BACKGROUND: Commencing lifelong antiretroviral therapy (ART) immediately following HIV diagnosis (Option B+), has greatly improved maternal-infant health. Thus, large and increasing numbers of HIV-infected women are on ART during pregnancy, a situation concurrently increasing numbers of HIV-exposed-uninfected (HEU) infants. Compared to their HIV-unexposed-uninfected (HUU) counterparts, HEU infants show higher rates of adverse birth outcomes, mortality, infectious/non-communicable diseases including impaired growth and neurocognitive development. There is an urgent need to understand the impact of HIV and early life ART exposures, immune-metabolic dysregulation, comorbidities and environmental confounders on adverse paediatric outcomes. METHODS: Six hundred (600) HIV-infected and 600 HIV-uninfected pregnant women ≥20 weeks of gestation will be enrolled from four primary health centres in high density residential areas of Harare. Participants will be followed up as mother-infant-pairs at delivery, week(s) 1, 6, 10, 14, 24, 36, 48, 72 and 96 after birth. Clinical, socio-economic, nutritional and environmental data will be assessed for adverse birth outcomes, impaired growth, immune/neurodevelopment, vertical transmission of HIV, hepatitis-B/C viruses, cytomegalovirus and syphilis. Maternal urine, stool, plasma, cord blood, amniotic fluid, placenta and milk including infant plasma, dried blood spot and stool will be collected at enrolment and follow-up visits. The composite primary endpoint is stillbirth and infant mortality within the first two years of life in HEU versus HUU infants. Maternal mortality in HIV-infected versus -uninfected women is another primary outcome. Secondary endpoints include a range of maternal and infant outcomes. Sub-studies will address maternal stress and malnutrition, maternal-infant latent tuberculosis, Helicobacter pylori infections, immune-metabolomic dysregulation including gut, breast milk and amniotic fluid dysbiosis. DISCUSSION: The University of Zimbabwe-College of Health-Sciences-Birth-Cohort study will provide a comprehensive assessment of risk factors and biomarkers for HEU infants' adverse outcomes. This will ultimately help developing strategies to mitigate effects of maternal HIV, early-life ART exposures and comorbidities on infants' mortality and morbidity. TRIAL REGISTRATION: ClinicalTrial.gov Identifier: NCT04087239 . Registered 12 September 2019.


Assuntos
Transmissão Vertical de Doenças Infecciosas , Estudos de Coortes , Feminino , Infecções por HIV/tratamento farmacológico , Infecções por Helicobacter/complicações , Helicobacter pylori , Hepatite B/complicações , Humanos , Lactente , Mortalidade Infantil , Leite Humano , Morbidade , Parto , Gravidez , Complicações Infecciosas na Gravidez/virologia , Fatores de Risco , Natimorto , Sífilis/complicações , Universidades , Zimbábue
8.
J Infect Dis ; 207(6): 903-6, 2013 Mar 15.
Artigo em Inglês | MEDLINE | ID: mdl-23264673

RESUMO

We aimed to evaluate whether the HLA-G 14-base pair (bp) polymorphism (rs16375) has an impact on human immunodeficiency virus HIV progression and survival in an antiretroviral therapy-naive Zimbabwean cohort (n = 312). Rs16375 was genotyped using a competitive allele-specific polymerase chain reaction system; CD4 cell counts and HIV RNA were measured with flow cytometry and commercially available polymerase chain reaction; survival was followed up for 4.3 years. The homozygous HLA-G -14-bp genotype is associated with higher viral load (P = .004), lower CD4 cell count (P = .01), and increased mortality (hazard ratio, 1.9; 95% confidence interval, 1.033-3.522; P = .04) compared with HLA-G +14-bp carriers.


Assuntos
Infecções por HIV/genética , Infecções por HIV/imunologia , Antígenos HLA-G/genética , RNA Viral/sangue , Deleção de Sequência , Regiões 3' não Traduzidas/genética , Adulto , Sequência de Bases , Contagem de Linfócito CD4 , Progressão da Doença , Feminino , Genótipo , Humanos , Estimativa de Kaplan-Meier , Masculino , Polimorfismo Genético , Modelos de Riscos Proporcionais , População Rural , Taxa de Sobrevida , Carga Viral , Zimbábue
9.
Health Inf Manag ; 52(1): 41-49, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-33478261

RESUMO

BACKGROUND: Documentation of patient health information in the form of patient medical records (PMRs) is an essential, ethical and regulatory requirement in any healthcare system. African traditional medicine (ATM) exists parallel to biomedicine and continues to play a significant role in primary healthcare of the majority of South Africans. The World Health Organization (WHO) has promoted the integration of ATM into the national health system of South Africa. Patient health information documentation can facilitate this integration, and PMRs promote communication between the two health systems through referrals. Documentation in biomedicine is a clear, compulsory, routine activity, but does not occur regularly or routinely in ATM. OBJECTIVE: To examine the attitudes and perceptions of traditional health practitioners (THPs) towards documentation of patient health information in their practice. METHODS: This quantitative cross-sectional survey involved snowball sampling to recruit THPs in Umlazi Township and rural parts surrounding the township, in Durban, South Africa. A semi-structured questionnaire was used. Quantitative data were analysed using SPSS 25 and the Relative Importance Index (RII) and qualitative data were analysed using Excel for themes. RESULTS: Sampling resulted in 248 THPs of whom 178 (72%) were females. The RII ranked the factors that negatively influenced the participants' attitudes towards documentation of patient health information. Of the 178 females who participated in the study, 129 (72.5%) showed their willingness to introduce documentation in their practice. Of the 127 participants with less than 10 years of practice experience, 126 (99.2%) agreed to the importance of introducing PMRs in their practice. The majority of participants perceived documentation of patient health information as vital to improve their practice. A prominent theme was that the THPs regarded documenting patient health information as important and effective in their practice. CONCLUSION: More than half of participants showed positive attitudes and perceptions towards documenting of patient health information in ATM. The majority of the participants in this study acknowledged the importance of introducing documentation of patient health information in their practice even though they lacked experience and more knowledge. This reflects a need for essential intervention in developing specialised tools to begin promoting documentation of patient health information in ATM.


Assuntos
Medicinas Tradicionais Africanas , Profissionais de Medicina Tradicional , Feminino , Humanos , Masculino , África do Sul , Estudos Transversais , População Rural
10.
Afr Health Sci ; 23(2): 305-329, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38223600

RESUMO

Background: Leukaemia is one of the three major types of blood cancers that lead to the overproduction of abnormal white blood cells. Emelia M (EMB), Mshikazi and Delosma H are herbal medicines that are being used by traditional healers in KwaZulu-Natal, South Africa to treat leukaemia and other diseases. Objectives: To gain insight into the safety (non-toxic effect), anti-cancer activity, mechanisms of action and phytochemical profiles of traditional herbal medicines (Emelia M (EMB), Mshikazi and Delosma H) in South Africa. Methods: The viability of human peripheral blood mononuclear cells (PBMCs), monocytic (THP-1) and T-lymphocyte (Jurkat) cell lines exposed to varying concentrations of aqueous extracts of the three herbal medicines were assessed using adenosine triphosphate (ATP) assay. Results: All three extracts showed a dose-dependent effect on the viability of PBMCs. Cell viability decreased with increasing concentrations of extracts when compared with the untreated cells at 24 and 48 hours. The inhibitory activities (IC50) of the extract were found in the order of Mshikazi > EMB, > Delosma H. All the extracts induced apoptosis with minimal necrosis. Many bioactive compounds that have been previously reported to have anticancer effects were identified in the extracts. Conclusion: Mshikazi extract significantly inhibited the growth of THP-1 and Jurkat cells and induced cell death through apoptosis than the other two extracts.


Assuntos
Leucemia , Neoplasias , Plantas Medicinais , Humanos , Extratos Vegetais/farmacologia , Extratos Vegetais/química , Leucócitos Mononucleares , África do Sul , Plantas Medicinais/química , Leucemia/tratamento farmacológico
11.
BMJ Open ; 13(11): e079201, 2023 11 17.
Artigo em Inglês | MEDLINE | ID: mdl-37977866

RESUMO

INTRODUCTION: Infertility adversely affects the sexual reproductive health and overall quality of life of people. Recent estimates show that about one in six people (both men and women) experience infertility in their lifetime. This scoping review will, therefore, map the existing evidence on traditional management of female infertility in Africa including the effectiveness of the traditional healthcare systems, to inform policy and practice. METHODS: The scoping review will be guided by the Arksey and O'Malley framework in conjunction with the Joanna Briggs Institute updated methodological guidance for scoping reviews. A search strategy will be developed, which will target the following databases: PubMed, Scopus, Embase, CINAHL, Google Scholar and Africa-Wide Information including grey literature. The screening of titles, abstracts and full text will be done by two independent reviewers. Data will be extracted, analysed numerically and thematically. The reporting of the scoping review will use the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Extension for Scoping Reviews checklist. ETHICS AND DISSEMINATION: This scoping review will not require ethical approval as this is secondary analysis of peer-reviewed articles. The findings of the review will be disseminated on various platforms including conferences, meetings to key stakeholders and in a peer-reviewed journal for wider sharing.


Assuntos
Infertilidade Feminina , Masculino , Humanos , Feminino , Infertilidade Feminina/terapia , Qualidade de Vida , Atenção à Saúde , Projetos de Pesquisa , Reprodução , Revisões Sistemáticas como Assunto , Literatura de Revisão como Assunto
12.
J Biomol Struct Dyn ; 40(6): 2516-2529, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-33131412

RESUMO

MSI2 is a homolog 2 of the Musashi RNA binding proteins (MSI) and is known to contribute to acute myeloid leukaemia (AML) and expressed up to 70% in AML patients. High expression of MSI2 has been found to lead to the lower overall survival of patients with AML. This study proposed the potential antagonists of MSI2 RNA-recognition motifs (MSI2 RRM1) derived from the LC-MS analysis of three traditional herbal samples. The LC-MS analysis of the three traditional herbs concoctions yields a total of 271 unique molecules of which 262 were screened against MSI2 RRM1 protein. After the dynamic study of the selected 8 top molecules from the virtual screening, the five most promising ligands emerged as potential MSI2 antagonists compare to the reference experimental molecule. The results show that the dynamic of MSI2 RRM1 protein is accompanied by a rare even of protein chain dissociation and re-association as evident in both the bound and unbound state of the protein. The unbound protein experience earlier chain dissociation compare to ligand-bound protein indicating that ligand binding to the protein slows down the dissociation time but thereafter increases the frequency of alternation between the protein chain association and dissociation after the first experience. Interestingly, the re-association of the protein chain is also accompanied by full restoration of the ligands to the binding site. The drug candidate Methotrexate (M3) and rescinnamine (M9) are listed among the promising antagonist of MSI2 with unique properties compared to a less promising molecule Ergotamine (M6).Communicated by Ramaswamy H. Sarma.


Assuntos
Leucemia Mieloide Aguda , Motivo de Reconhecimento de RNA , Sítios de Ligação , Humanos , Leucemia Mieloide Aguda/genética , Ligantes , Proteínas de Ligação a RNA/metabolismo
13.
EClinicalMedicine ; 45: 101309, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-35243274

RESUMO

BACKGROUND: Adolescence is a critical period of maturation when nutrient needs are high, especially among adolescents entering pregnancy. Using individual-level data from 140,000 participants, we examined socioeconomic, nutrition, and pregnancy and birth outcomes for adolescent mothers (10-19 years) compared to older mothers in low and middle-income countries. METHODS: This study was conducted between March 16, 2018 and May 25, 2021. Data were obtained from 20 randomised controlled trials of micronutrient supplementation in pregnancy. Stratified analyses were conducted by age (10-14 years, 15-17 years, 18-19 years, 20-29 years, 30-39 years, 40+ years) and geographical region (Africa, Asia). Crude and confounder-adjusted means, prevalence and relative risks of pregnancy, nutrition and birth outcomes were estimated using multivariable linear and log-binomial regression models with 95% confidence intervals. FINDINGS: Adolescent mothers comprised 31.6% of our data. Preterm birth, small-for-gestational age (SGA), low birthweight (LBW) and newborn mortality followed a U-shaped trend in which prevalence was highest among the youngest mothers (10-14 years) and then reduced gradually, but increased again for older mothers (40+ years). When compared to mothers aged 20-29 years, there was a 23% increased risk of preterm birth, a 60% increased risk of perinatal mortality, a 63% increased risk of neonatal mortality, a 28% increased risk of LBW, and a 22% increased risk of SGA among mothers 10-14 years. Mothers 40+ years experienced a 22% increased risk of preterm birth and a 103% increased risk of stillbirth when compared to the 20-29 year group. INTERPRETATION: The youngest and oldest mothers suffer most from adverse pregnancy and birth outcomes. Policy and programming agendas should consider both biological and socioeconomic/environmental factors when targeting these populations. FUNDING: Bill and Melinda Gates Foundation (Grant No: OP1137750).

14.
AIDS Behav ; 15(2): 487-98, 2011 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-20803064

RESUMO

Quantitative studies indicate that HIV incidence in Zimbabwe declined since the late 1990s, due in part to behavior change. This qualitative study, involving focus group discussions with 200 women and men, two dozen key informant interviews, and historical mapping of HIV prevention programs, found that exposure to relatives and close friends dying of AIDS, leading to increased perceived HIV risk, was the principal explanation for behavior change. Growing poverty, which reduced men's ability to afford multiple partners, was also commonly cited as contributing to reductions in casual, commercial and extra-marital sex. HIV prevention programs and services were secondarily mentioned as having contributed but no specific activities were consistently indicated, although some popular culture influences appear pivotal. This qualitative study found that behavior change resulted primarily from increased interpersonal communication about HIV due to high personal exposure to AIDS mortality and a correct understanding of sexual HIV transmission, due to relatively high education levels and probably also to information provided by HIV programs.


Assuntos
Síndrome da Imunodeficiência Adquirida/prevenção & controle , Infecções por HIV/prevenção & controle , Conhecimentos, Atitudes e Prática em Saúde , Percepção , Comportamento Sexual , Parceiros Sexuais/psicologia , Síndrome da Imunodeficiência Adquirida/epidemiologia , Síndrome da Imunodeficiência Adquirida/psicologia , Cultura , Epidemias , Feminino , Grupos Focais , Infecções por HIV/epidemiologia , Infecções por HIV/psicologia , Humanos , Masculino , Meios de Comunicação de Massa , Pesquisa Qualitativa , Fatores de Risco , Assunção de Riscos , Fatores Socioeconômicos , Zimbábue/epidemiologia
15.
Health Inf Manag ; 50(3): 118-127, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31888379

RESUMO

BACKGROUND: Documentation of patient health information (PHI) is a regulatory requirement and hence a standard procedure in allopathic healthcare practice. The opposite is true for African traditional medicine (ATM) in most African countries, including South Africa, despite legal and policy frameworks that recognise and mandate the institutionalisation of ATM. Developing good practice standards for PHI documentation is an essential step in the institutionalisation of ATM. OBJECTIVE: This study examined the knowledge and practices of documentation of PHI by traditional health practitioners (THPs) in Durban, eThekwini Municipality, KwaZulu-Natal Province, South Africa. METHODS: In this quantitative cross-sectional study, snowball sampling was used to identify and recruit THPs. An interviewer-administered questionnaire was used to gather data. Chi-square tests and logistic regression were used to assess associations of knowledge and practice of documentation of PHI with potential predictors; age, gender, education, type of practitioner, experience, number of patients seen per day and location of the practice. RESULTS: Of the 248 THPs who participated, 71.8% were female. Mean (SD) age was 47.4 (14.2), ranging 18-81 years. The majority (65.7%) were Izangoma (diviners). Overall, 42.9% of the THPs reported knowledge of patient medical records (PMRs). In logistic regression, only number of patients seen per day remained a significant predictor of knowledge about PMR. THPs who reported seeing 6-10 patients were five times more likely (Odds Ratio (OR): 5.164, 95% Confidence Interval (CI): 1.270-20.996; p = 0.022) to report knowledge of PMR than those seeing <6 patients per day. Overall, 25.0% of THPs reported that they were documenting some PHI. Documentation was associated with having knowledge of PMR (OR: 29.323, 95% CI: 10.455-82.241; p < 0.0001) and being an Isangoma (OR: 3.251, 95% CI: 1.092-9.679; p = 0.02). Not knowing what (56.5%) and how (50.5%) to record were the most commonly cited reasons for not documenting. CONCLUSION: Knowledge of PMR is low, and the practice of documenting PHI is even lower among THPs in eThekwini. That knowledge of PMR was a strong predictor of documentation practice, and the most common reason for not documenting was lack of knowledge about what and how to document suggests that training could improve PHI documentation in traditional medicine practice.


Assuntos
Atenção à Saúde , Medicinas Tradicionais Africanas , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos Transversais , Documentação , Feminino , Humanos , Pessoa de Meia-Idade , África do Sul , Adulto Jovem
16.
Afr Health Sci ; 21(4): 1924-1937, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-35283952

RESUMO

Background: Three decoctions, namely Emelia M (EMB), Mshikazi and Delosma H are used by traditional health practitioners in KwaZulu-Natal, South Africa to treat and manage leukaemia and related conditions. Objectives: This study evaluated the in vitro antioxidant activity and phytochemical profile of the aqueous extracts of Emelia M (EMB), Mshikazi and Delosma H decoctions. Methods: Antioxidant activity of the extracts was evaluated using1-diphenyl-2-picrylhydrazyl (DPPH), glutathione (GSH), phosphomolybdate and thiobarbituric acid reactive substance (TBARS) assays. Phytochemical screening was used to determine the presence of compounds. Results: The DPPH radical scavenging activity was similar to ascorbic acid for EMB and Delosma H, but not for Mshikazi. At 24 h, EMB increased GSH in both THP-1 and Jurkat cells similar to Delosma H while Mshikazi demonstrated the lowest activity. At 48 h, EMB and Delosma H revealed increased GSH in THP-1 cells with no significant decrease in GSH levels in Jurkat cells. However, EMB showed the lowest lipid peroxidation activity compared to Delosma H and Mshikazi after 24 h treatment of both cells. Phenols, flavonoids, terpenoids, saponins were present in all extracts. Conclusion: Extracts of the three decoctions possess both antioxidant and prooxidant properties through high scavenging activity and increased in lipid peroxidation.


Assuntos
Antioxidantes , Leucemia , Antioxidantes/química , Antioxidantes/farmacologia , Sequestradores de Radicais Livres/química , Humanos , Células Jurkat , Leucemia/tratamento farmacológico , Compostos Fitoquímicos/farmacologia , Picratos/química , Picratos/metabolismo , Extratos Vegetais/química , Extratos Vegetais/farmacologia , África do Sul
17.
Artigo em Inglês | MEDLINE | ID: mdl-32346483

RESUMO

Mental, neurological and substance use (MNS) disorders are a leading, but neglected, cause of morbidity and mortality in sub-Saharan Africa. The treatment gap for MNS is vast with only 10% of people with MNS disorders in low-income countries accessing evidence-based treatments. Reasons for this include low awareness of the burden of MNS disorders and limited evidence to support development, adaptation and implementation of effective and feasible treatments. The overall goal of the African Mental Health Research Initiative (AMARI) is to build an African-led network of MNS researchers in Ethiopia, Malawi, South Africa and Zimbabwe, who are equipped to lead high quality mental health research programs that meet the needs of their countries, and to establish a sustainable career pipeline for these researchers with an emphasis on integrating MNS research into existing programs such as HIV/AIDS. This paper describes the process leading to the development of AMARI's objectives through a theory of change workshop, successes and challenges that have been faced by the consortium in the last 4 years, and the future role that AMARI could play in further building MNS research capacity by brining on board more institutions from low- and middle-income countries with an emphasis on developing an evidence-based training curriculum and a research-driven care service.

18.
Afr J Reprod Health ; 13(2): 61-8, 2009 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-20690249

RESUMO

Parturition triggers an acute phase response, but its magnitude, duration and predictors are not well described. We determined serum alpha1-antichymotrypsin (ACT) and C-reactive protein (CRP) among 216 women attending postpartum services in south-eastern Zimbabwe. Serum CRP peaked during the first week and serum ACT around 9 days postpartum. Serum ACT, but not serum CRP, was lower among HIV infected women. Multiparity was a negative, and preterm delivery and caesarean section were positive predictors of both serum ACT and CRP. There is a need for a better understanding of the acute phase response to parturition.


Assuntos
Reação de Fase Aguda/sangue , Proteína C-Reativa/análise , Parto/sangue , alfa 1-Antiquimotripsina/sangue , Adulto , Estudos Transversais , Parto Obstétrico , Feminino , Infecções por HIV/sangue , Humanos , Período Pós-Parto , Gravidez , Resultado da Gravidez , Adulto Jovem , Zimbábue
19.
Afr Health Sci ; 19(4): 3100-3106, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-32127886

RESUMO

INTRODUCTION: Despite the recognition of Traditional Medicine systems as a critical component of health care by the WHO and the African Union, its integration into the health care mainstream remains very subdued in South Africa. This is partly due to the lack of empirical data pertinent to traditional healer training that could inform the accreditation process. OBJECTIVE: To determine core competencies acquired by Traditional Health Practitioners (THP) of KwaZulu-Natal Province, South Africa during their apprenticeship. MATERIALS AND METHODS: Purposeful, convenient and snowballing sampling and the sequential data collection methods of questionnaires, journaling and focus groups was used to collect data from the THP tutors and their trainees in rural, peri-urban and urban areas of eThekwini and uThungulu Districts of Kwa Zulu Natal (KZN). RESULTS: Eleven core competencies were identified: consultation, diagnoses, holistic patient care and treatment, integrative and holistic healing, application of healing procedures and cultural rituals, spiritual development, ethical competencies, problem solving, herbalism, ancestral knowledge and end of life care. CONCLUSION: The apprenticeship of THPs in KZN is based on eleven core competencies. These competencies are fundamental pillars for critical health care provided by THPs and are crucial for setting standards for the accreditation of traditional training in South Africa if the THP Act 22 of 2007 is to achieve its purpose of providing for the management of and control over the registration, training and conduct of the practitioners. Hence, the appointed interim THP Council should include the identified competencies when articulating bases for accreditation of the training and assessments.


Assuntos
Competência Cultural , Pessoal de Saúde/normas , Serviços de Saúde do Indígena/normas , Medicinas Tradicionais Africanas/normas , Competência Profissional , Adulto , Feminino , Grupos Focais , Humanos , Masculino , Pessoa de Meia-Idade , Pesquisa Qualitativa , População Rural/estatística & dados numéricos , África do Sul , População Urbana/estatística & dados numéricos
20.
Afr Health Sci ; 19(2): 2219-2229, 2019 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-31656507

RESUMO

BACKGROUND: Annona stenophylla is a folk medicine popularly used in Zimbabwe for the treatment of many ailments. This study was carried out to determine some of the possible anti diabetic mechanisms of its action using in vitro cell culturing methods. METHODS: A. stenophylla's effects on glucose uptake were tested using muscle cells (C2Cl2). Expression of glucose 4 transporters was determined by treating cell lines with plant extract. Total RNA was isolated and using RT-PCR, GLUT 4 expression levels were quantified. Translocation of GLUT 4 was assessed using FITC fluorescence measured by flow cytometry. RESULTS: Treatment of cells with plant extract significantly increased glucose uptake in a concentration dependent manner, with the highest concentration (250 µg/ml) giving 28% increased uptake compared to the negative control. The increase in glucose uptake (2.5 times more than control) was coupled to increase in GLUT 4 mRNA and subsequently GLUT 4 translocation. Wortmannin expunged the A. stenophylla induced increase in GLUT 4 mRNA and glucose uptake. CONCLUSION: The results suggest that A. stenophylla aqueous extract increases glucose uptake partly through increasing the GLUT 4 mRNA and translocation potentially acting via the PI-3-K pathway. This study confirms the ethnopharmacological uses of A. stenophylla indicating potential for anti-diabetic products formulation.


Assuntos
Annona/química , Glicemia/metabolismo , Transportador de Glucose Tipo 4/metabolismo , Células Musculares/metabolismo , Extratos Vegetais/farmacologia , Glicemia/efeitos dos fármacos , Linhagem Celular , Células Cultivadas , Relação Dose-Resposta a Droga , Transportador de Glucose Tipo 4/efeitos dos fármacos , RNA Mensageiro/metabolismo , Wortmanina/farmacologia , Zimbábue
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