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1.
Dev World Bioeth ; 2024 Mar 13.
Artigo em Inglês | MEDLINE | ID: mdl-38477437

RESUMO

This study assessed challenges faced by researchers with the informed consent process (ICP). In-depth interviews were used to explore challenges encountered by Investigators, Research assistants, Institutional Review Board members and other stakeholders. An electronic questionnaire was also distributed, consisting of Likert-scale responses to questions on adherence to the ICP, which were derived from the Helsinki Declaration and an informed consent checklist of the US Department of Health and Human Research (HSS). Responses were weighted numerically and scores calculated for each participant. The median score of the level of adherence to the informed consent process was 93%. Most of the respondents (60%) cited the lack of time for the ICP to be a challenge, with 65% indicating a lengthy consent document to be the main challenge with the informed consent document. Challenges with language and communication were the dominant theme among informants. Despite the high adherence of Ghanaian researchers and research assistants to the ICP, challenges are still prevalent, requiring diligent and continuous efforts in research implementation.

2.
J Med Ethics ; 2022 Apr 08.
Artigo em Inglês | MEDLINE | ID: mdl-35396337

RESUMO

BACKGROUND: Informal mHealth is widely used by community health nurses in Ghana to extend healthcare delivery services to clients who otherwise might have been excluded from formal health systems or would experience significant barriers in their quest to access formal health services. The nurses use their private mobile phones or devices to make calls to their clients, health volunteers, colleagues or superiors. These phone calls are also reciprocal in nature. Besides, the parties exchange or share other health data and information through text messages, pictures, videos or voice clips. There are some ethical dimensions that are inherent in these practices that ought to be critically scrutinised by bioethicists. OBJECTIVE: The author has argued in this paper that informal mHealth at large scale adoption in Ghana is associated with some bioethical challenges. METHODS: This essay was largely based on an analysis of an empirical study published by Hampshire et al in 2021 on the use of informal mHealth methods in Ghana. RESULTS: Widespread adoption of Informal mHealth in Ghana is associated with privacy invasion of both the nurses and their clients, breaches confidentiality of the parties, discredits the validity of informed consent processes and may predispose the nurses to some other significant aggregated harms. CONCLUSION: The author affirms his partial support for a formalised adoption process of informal mHealth in Ghana but has reiterated that the current ethical challenges associated with informal mHealth in Ghana cannot escape all the debilitating bioethical challenges, even if it is formalised.

3.
Int J Health Plann Manage ; 37(4): 2266-2283, 2022 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-35373366

RESUMO

In 1945 the Food and Agricultural Organization (FAO) chose its Latin motto 'fiat panis' which translates as 'let there be bread' to prevent an unprecedented health catastrophe as a result of endemic hunger and poor nutritional health. Despite the long standing effort in this regard, for so many people, especially in developing economies in sub-Saharan Africa, access to enough, good quality, and constant supply of food and water remains an affront to good nutritional health. Globally, the FAO reports that 815 million people representing 10% of the population worldwide are currently undernourished. Our study investigates the effect of sustainable food production on malnutrition across sub-Saharan African countries. An ensemble of more sophisticated econometric models is applied to dynamic cross-country panel data from 16 countries in the 4 regions in Sub-Saharan African. Our study is innovative because it makes a pioneering contribution to the available stock of literature on indicators of sustainable food production and malnutrition which is still at an embryonic stage. We note that even though sub-Sahara African has a large tract of arable land, it negatively contributes towards malnutrition. We observed a positive and statistically significant relationship between food production (crop and livestock) and agricultural labour on malnutrition. Policy recommendations have been proposed to improve higher nutritional health through food production.


Assuntos
Abastecimento de Alimentos , Desnutrição , África Subsaariana/epidemiologia , Humanos , Desnutrição/epidemiologia , Desnutrição/prevenção & controle
4.
BMC Public Health ; 21(1): 985, 2021 05 26.
Artigo em Inglês | MEDLINE | ID: mdl-34039313

RESUMO

BACKGROUND: The outbreak of the COVID-19 pandemic has been associated with several adverse health outcomes. However, few studies in sub-Saharan Africa have examined its deleterious consequences on mental health. Therefore, we investigated the prevalence and changes in boredom, anxiety and psychological well-being before and during the COVID-19 pandemic in Ghana. METHODS: Data for this study were drawn from an online survey of 811 participants that collected retrospective information on mental health measures including symptoms of generalized anxiety disorder, boredom, and well-being. Additional data were collected on COVID-19 related measures, biosocial (e.g. age and sex) and sociocultural factors (e.g., education, occupation, marital status). Following descriptive and psychometric evaluation of measures used, multiple linear regression was used to assess the relationships between predictor variables and boredom, anxiety and psychological well-being scores during the pandemic. Second, we assessed the effect of anxiety on psychological well-being. Next, we assessed predictors of the changes in boredom, anxiety, and well-being. RESULTS: Before the COVID-19 pandemic, 63.5% reported better well-being, 11.6% symptoms of anxiety, and 29.6% symptoms of boredom. Comparing experiences before and during the pandemic, there was an increase in boredom and anxiety symptomatology, and a decrease in well-being mean scores. The adjusted model shows participants with existing medical conditions had higher scores on boredom (ß = 1.76, p < .001) and anxiety (ß = 1.83, p < .01). In a separate model, anxiety scores before the pandemic (ß = -0.25, p < .01) and having prior medical conditions (ß = -1.53, p < .001) were associated with decreased psychological well-being scores during the pandemic. In the change model, having a prior medical condition was associated with an increasing change in boredom, anxiety, and well-being. Older age was associated with decreasing changes in boredom and well-being scores. CONCLUSIONS: This study is the first in Ghana to provide evidence of the changes in boredom, anxiety and psychological well-being during the COVID-19 pandemic. The findings underscore the need for the inclusion of mental health interventions as part of the current pandemic control protocol and public health preparedness towards infectious disease outbreaks.


Assuntos
COVID-19 , Pandemias , Idoso , Ansiedade/epidemiologia , Transtornos de Ansiedade/epidemiologia , Tédio , Depressão , Gana/epidemiologia , Humanos , Prevalência , Estudos Retrospectivos , SARS-CoV-2
5.
World Dev ; 140: 105257, 2021 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-33814676

RESUMO

The extraordinary global growth of digital connectivity has generated optimism that mobile technologies can help overcome infrastructural barriers to development, with 'mobile health' (mhealth) being a key component of this. However, while 'formal' (top-down) mhealth programmes continue to face challenges of scalability and sustainability, we know relatively little about how health-workers are using their own mobile phones informally in their work. Using data from Ghana, Ethiopia and Malawi, we document the reach, nature and perceived impacts of community health-workers' (CHWs') 'informal mhealth' practices, and ask how equitably these are distributed. We implemented a mixed-methods study, combining surveys of CHWs across the three countries, using multi-stage proportional-to-size sampling (N = 2197 total), with qualitative research (interviews and focus groups with CHWs, clients and higher-level stake-holders). Survey data were weighted to produce nationally- or regionally-representative samples for multivariate analysis; comparative thematic analysis was used for qualitative data. Our findings confirm the limited reach of 'formal' compared with 'informal' mhealth: while only 15% of CHWs surveyed were using formal mhealth applications, over 97% reported regularly using a personal mobile phone for work-related purposes in a range of innovative ways. CHWs and clients expressed unequivocally enthusiastic views about the perceived impacts of this 'informal health' usage. However, they also identified very real practical challenges, financial burdens and other threats to personal wellbeing; these appear to be borne disproportionately by the lowest-paid cadre of health-workers, especially those serving rural areas. Unlike previous small-scale, qualitative studies, our work has shown that informal mhealth is already happening at scale, far outstripping its formal equivalent. Policy-makers need to engage seriously with this emergent health system, and to work closely with those on the ground to address sources of inequity, without undermining existing good practice.

6.
Environ Res ; 189: 109936, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-32980018

RESUMO

COVID-19 is an active pandemic that likely poses an existential threat to humanity. Frequent handwashing, social distancing, and partial or total lockdowns are among the suite of measures prescribed by the World Health Organization (WHO) and being implemented across the world to contain the pandemic. However, existing inequalities in access to certain basic necessities of life (water, sanitation facility, and food storage) create layered vulnerabilities to COVID-19 and can render the preventive measures ineffective or simply counterproductive. We hypothesized that individuals in households without any of the named basic necessities of life are more likely to violate the preventive (especially lockdown) measures and thereby increase the risk of infection or aid the spread of COVID-19. Based on nationally-representative data for 25 sub-Saharan African (SSA) countries, multivariate statistical and geospatial analyses were used to investigate whether, and to what extent, household family structure is associated with in-house access to basic needs which, in turn, could reflect on a higher risk of COVID-19 infection. The results indicate that approximately 46% of the sampled households in these countries (except South Africa) did not have in-house access to any of the three basic needs and about 8% had access to all the three basic needs. Five countries had less than 2% of their households with in-house access to all three basic needs. Ten countries had over 50% of their households with no in-house access to all the three basic needs. There is a social gradient in in-house access between the rich and the poor, urban and rural richest, male- and female-headed households, among others. We conclude that SSA governments would need to infuse innovative gender- and age-sensitive support services (such as water supply, portable sanitation) to augment the preventive measures prescribed by the WHO. Short-, medium- and long-term interventions within and across countries should necessarily address the upstream, midstream and downstream determinants of in-house access and the full spectrum of layers of inequalities including individual, interpersonal, institutional, and population levels.


Assuntos
Infecções por Coronavirus/epidemiologia , Armazenamento de Alimentos , Pneumonia Viral/epidemiologia , Saneamento , Abastecimento de Água , Betacoronavirus , COVID-19 , Infecções por Coronavirus/prevenção & controle , Feminino , Humanos , Masculino , Pandemias/prevenção & controle , Pneumonia Viral/prevenção & controle , SARS-CoV-2 , África do Sul , Água
7.
Afr J Reprod Health ; 19(1): 63-72, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-26103696

RESUMO

In Ghana, it was estimated in 2013 that some 34,557 children were living with HIV and AIDS. Researches on children's perception of risk, knowledge and support services for infected persons have been rarely undertaken. This paper is based on responses obtained from 120 in-school children aged 9-13 years drawn from three schools in the Cape Coast Metropolis of Ghana. The respondents provided qualitative data through essays and quantitative data through questionnaires. All the respondents have had some knowledge on HIV and AIDS and knew of where to access HIV and AIDS information. More than seventy per cent of them were not willing to purchase fresh vegetables from AIDS vendors nor were willing to allow AIDS infected female teachers to continue teaching them. It was recommended that children should be targeted with behavioural change communication messages especially by teachers to enable them live harmoniously with people infected and affected with AIDS.


Assuntos
Síndrome da Imunodeficiência Adquirida , Infecções por HIV , Conhecimentos, Atitudes e Prática em Saúde , Acesso à Informação , Adolescente , Criança , Feminino , Gana , Humanos , Masculino , Pesquisa Qualitativa , Inquéritos e Questionários
8.
Glob Bioeth ; 34(1): 1-11, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36703864

RESUMO

Bioethics provides various models of fair allocation of scarce health resources like COVID-19 vaccines. Even though these models are grounded in some ethical principles like justice and beneficence, there were severe inequalities in global access to COVID-19 vaccines. In Ghana, about 21.5 million COVID-19-doses have been administered but comprise mainly members of the adult population. As a result, ethical issues related to vaccinating children have been largely ignored in the country. This paper explores some of the ethical implications related to children's exclusion in the initial COVID-19 vaccination programs in Ghana. It provides a general overview of the COVID-19 pandemic in Ghana and how it related to children and discusses the risks to which Ghanaian children were exposed by delaying their COVID-19 vaccination. A guide to facilitating the full rollout of COVID-19 vaccination in Ghana for children has been proposed that indicates that a fair vaccine distribution for children should prioritize children on admission at health facilities, those diagnosed with severe underlying health conditions, and children who could play an instrumental role in promoting vaccine uptake. It concludes that children must not be placed at the peripheries of the COVID-19 vaccination program in Ghana.

9.
BMJ Glob Health ; 6(Suppl 3)2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-37734858

RESUMO

Global health efforts such as malarial control require efficient pharmaceutical supply chains to ensure effective delivery of quality-assured medicines to those who need them. However, very little is currently known about decision-making processes within antimalarial supply chains and potential vulnerabilities to substandard and falsified medicines. Addressing this gap, we report on a study that investigated decision-making around the stocking of antimalarial products among private-sector medicine retailers in Ghana. Licensed retail pharmacies and over-the-counter (OTC) medicine retail outlets were sampled across six regions of Ghana using a two-stage stratified sampling procedure, with antimalarial medicines categorised as 'expensive,' 'mid-range,' and 'cheaper,' relative to other products in the shop. Retailers were asked about their motivations for choosing to stock particular products over others. The reasons were grouped into three categories: financial, reputation/experience and professional recommendation. Reputation/experience (76%, 95% CI 72.0% to 80.7%) were the drivers of antimalarial stocking decisions, followed by financial reasons (53.2%, 95% CI 48.1% to 58.3%) and recommendation by certified health professionals (24.7%, 95% CI 20.3% to 29.1%). Financial considerations were particularly influential in stocking decisions of cheaper medicines. Moreover, pharmacies and OTCs without a qualified pharmacist were significantly more likely to indicate financial reasons as a motivation for stocking decisions. No significant differences in stocking decisions were found by geographical location (zone and urban/rural) or outlet (pharmacy/OTC). These findings have implications for the management of antimalarial quality across supply chains in Ghana, with potentially important consequences for malaria control, particularly in lower-income areas where people rely on low-cost medication.


Assuntos
Antimaláricos , Malária , Farmácia , Humanos , Antimaláricos/uso terapêutico , Gana , Malária/tratamento farmacológico
10.
Glob Public Health ; 17(5): 768-781, 2022 05.
Artigo em Inglês | MEDLINE | ID: mdl-33487104

RESUMO

While mobile phones promise to be an important tool for bridging the healthcare gaps in resource-poor areas in developing countries, scalability and sustainability of mobile phones for health (mhealth) interventions still remain a major challenge. Meanwhile, health workers are already using their own mobile phones (referred to as 'informal mhealth') to facilitate healthcare delivery in diverse ways. Therefore, this paper explores some strategies for integrating 'informal mHealth' in the healthcare delivery of Ghana, by highlighting some opportunities and challenges. The study mainly employed a combination of literature review, focus group discussions and key informant interviews with community health nurses (CHNs) and other stakeholders, who were purposively selected from the three ecological zones in Ghana. The study found that, while scale-up of 'formal mhealth' remains challenging in Ghana, almost all CHNs in our study are using their personal mobile phones 'informally' to bridge healthcare gaps, thereby promoting universal health coverage. This provides opportunities for promoting (or formalising) 'informal' mhealth in Ghana, in spite of some practical challenges in the use of personal mobile phones that need to be addressed to ensure sustainable healthcare delivery in the country.


Assuntos
Telefone Celular , Telemedicina , Atenção à Saúde , Gana , Humanos , Cobertura Universal do Seguro de Saúde
11.
J Empir Res Hum Res Ethics ; 17(1-2): 114-128, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-34665074

RESUMO

There were eighteen Research Ethics Committees (RECs) operating in Ghana as of December 2019 but no empirical assessment of their operational characteristics had been conducted. We assessed the characteristics of Ghanaian RECs using an existing Self-Assessment Tool for RECs in Developing Countries. We present results from nine RECs that participated in this nation-wide assessment. Our results indicate that the RECs are generally adherent to the recommendations in the Tool including being composed of members with diverse expertise. They also reviewed and approved research protocols as well as had access to some limited funding for their activities. There is no national policy on research human protections or an ethics authority to regulate the activities of the RECs. We recommend the establishment of this authority in Ghana while encouraging institutions to sustain efforts aimed at making their RECs operate independently.


Assuntos
Comitês de Ética em Pesquisa , Gana , Humanos
12.
Sci Rep ; 12(1): 13204, 2022 08 01.
Artigo em Inglês | MEDLINE | ID: mdl-35915218

RESUMO

Breast cancer is the second leading cause of cancer-related mortality in women worldwide, with nearly 90% attributed to metastatic progression. Exosomes containing epithelial-mesenchymal transition (EMT) 'programs' transmit pro-metastatic phenotypes. Our group discovered and developed a novel anti-cancer SMR peptide that antagonizes breast cancer cell exosome release resulting in cell cycle arrest and tumor growth suppression. This study aims to evaluate the anti-metastatic capabilities of the SMR peptide, focusing on exosomes and EMT. Breast cancer cell lines MDA-MB-231 and MCF-7 were treated with the SMRwt peptide, and the following assays were performed: cell wound-healing, migration, invasion. The SMRwt peptide consists of the following amino acid sequence VGFPVAAVGFPVDYKDDDDK and contains the SMR domain (66VGFPV70) of the HIV-1 Nef protein. Western blot analysis detected epithelial and mesenchymal markers to evaluate EMT progression. Extracellular vesicle type and quantity were assessed through NanoSight analysis. Mortalin and Vimentin knockdown was achieved through antibody targeting and miRNAs. Data gathered demonstrated that the SMR peptide interacts with Mortalin and Vimentin to inhibit pro-EMT exosome release and induce EMT tumor suppressor protein expression. Specifically, SMRwt treatment reduced mesenchymal markers Mortalin and Vimentin expression, while the epithelial marker E-cadherin expression was increased in breast cancer cells and breast cancer-derived exosomes. The SMR peptide specificity was identified as no effect was observed for MCF-10A exosome release or function. Direct Mortalin knockdown paralleled the results of SMR peptide treatment with an effective blockade of breast cancer cell migration. Conversely, the invasion assay differed between breast cancer cell lines with invasion blocked for in MCF-7 but not in MDA-MB-231. These results reinforce the therapeutic value of targeting breast cancer exosome release and reinforce Mortalin and Vimentin as critical regulators and therapeutic targets in breast cancer cell progression, EMT, and metastatic potential. A greater understanding of the SMR peptide mechanism of action will benefit the therapeutic design of anti-metastatic agents.


Assuntos
Neoplasias da Mama , Neoplasias da Mama/patologia , Linhagem Celular Tumoral , Movimento Celular , Proliferação de Células , Transição Epitelial-Mesenquimal/genética , Feminino , Humanos , Células MCF-7 , Peptídeos/química , Vimentina/genética
13.
J Public Health Afr ; 13(2): 1849, 2022 Jul 26.
Artigo em Inglês | MEDLINE | ID: mdl-36051514

RESUMO

The effects of the COVID-19 pandemic have been far reaching across almost every sphere of life. Families, which are the basic units of society, have not been spared the ravages of the pandemic. Changes in family daily routines as a result of COVID-19 can affect spousal relationships, parenting and childcare practices. However, the extent to which the pandemic has affected parenting practices and family relationships in Ghana is not known. The goal of this study was to assess how parenting practices and family relationships have been influenced during the COVID-19 pandemic in Ghana. Data for this paper was drawn from an online questionnaire response from 463 participants in Ghana as a subset analysis from a multi-country study on personal and family coping system with COVID-19 pandemic in the global south. The mean score for pre-COVID-19 relationship with partner (36.86) was higher (p<0.0001) than the mean score for during COVID-19 relationship with partner (35.32) indicating that COVID-19 has had negative influence on relationships. The mean score for pre-COVID-19 parenting (32.78) was higher (p<0.0001) compared to the mean score for during COVID-19 parenting (31.40) indicating negative influence on parenting. We have predicted that participants whose coping levels were "Well" on the average, are likely to be doing well in relationship with partners and parenting practices during the COVID-19 period The challenging public health containment measures of the COVID-19 pandemic have negatively influenced the relationship between partners and parenting practices in Ghana.

14.
Afr J Reprod Health ; 15(4): 109-19, 2011 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-22571113

RESUMO

This was an exploratory study on how dressmakers and hairdressers in the Assin South District of Ghana receive education on sexual and reproductive health. The respondents comprised mainly of full time female dressmakers and hairdressers as well as their apprentices (aged between 15 and 35 years, had attained basic education and were never married). Although some of the respondents were able to mention some sexual and reproductive health education programmes such as 'Mmaa Nkomo', most of them could not recall the recent topic discussed. Respondent's major sources of information on sexual and reproductive health were friends, mass media, health professionals and parents. A significant proportion of them did not consider sexual and reproductive health issues as a priority for human development and thus paid little or no attention its educational programmes. It was recommended that dressmaking and hairdressing supervisors should be regularly trained in sexual and reproductive health issues to enable them educate their apprentices.


Assuntos
Informação de Saúde ao Consumidor/métodos , Serviços de Planejamento Familiar/educação , Saúde Reprodutiva/educação , Educação Sexual/métodos , Saúde da Mulher , Adolescente , Adulto , Feminino , Gana , Humanos , Fatores Socioeconômicos , Têxteis , Adulto Jovem
15.
World Dev Perspect ; 23: 100317, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-34568642

RESUMO

The use of mobile phones is fast transforming the healthcare delivery landscape in Ghana. A substantial number of health facilities are now dependent on mobile phones to facilitate their work. Evidence of the use of mobile phones in Ghana's healthcare is however limited. In order to contribute to the evidence of the value of using mobile phones to promote healthcare, we interrogated and highlighted unexpected costs imposed on community health nurses who use their personal mobile phones for healthcare delivery in the country. Data for the study were derived from 598 completed questionnaires and extracts from focus group discussions with community health nurses who were sampled from three regions across the three main ecological zones of Ghana. The results show that over 90% of nurses bear the cost of paying for airtime, bundles and chargers used for work-related activities, yet less than 10% of them receive direct compensation. This costly burden has the potential to demotivate the nurses and threaten the country's progress towards the achievement of universal health coverage. More significantly, the data strongly suggest that physical distance, regional location and gender are the main factors triggering extra costs incurred by the nurses. We conclude that the use of personal mobile phones for healthcare delivery imposed huge financial burden on community health workers in Ghana. A suggested intervention to forestall negative consequences on performance is to offer incentive packages to nurses as a compensation for the financial and non-physical costs of using personal mobile phones for work-related activities.

16.
PLoS One ; 16(6): e0253800, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34181679

RESUMO

BACKGROUND: The COVID-19 pandemic and control measures adopted by countries globally can lead to stress and anxiety. Investigating the coping strategies to this unprecedented crisis is essential to guide mental health intervention and public health policy. This study examined how people are coping with the COVID-19 crisis in Ghana and identify factors influencing it. METHODS: This study was part of a multinational online cross-sectional survey on Personal and Family Coping with COVID-19 in the Global South. The study population included adults, ≥18 years and residents in Ghana. Respondents were recruited through different platforms, including social media and phone calls. The questionnaire was composed of different psychometrically validated instruments with coping as the outcome variable measured on the ordinal scale with 3 levels, namely, Not well or worse, Neutral, and Well or better. An ordinal logistic regression model using proportional odds assumption was then applied. RESULTS: A total of 811 responses were included in the analysis with 45.2% describing their coping level as well/better, 42.4% as neither worse nor better and 12.4% as worse/not well. Many respondents (46.9%) were between 25-34 years, 50.1% were males while 79.2% lived in urban Ghana. Having pre-existing conditions increased the chances of not coping well (aOR = 1.86, 95%CI: 1.15-3.01). Not being concerned about supporting the family financially (aOR = 1.67, 95%CI: 1.06-2.68) or having the feeling that life is better during the pandemic (aOR = 2.37, 95%CI: 1.26-4.62) increased chances of coping well. Praying (aOR: 0.62, 95%CI: 0.43-0.90) or sleeping (aOR: 0.55, 95%CI: 0.34-0.89) more during the pandemic than before reduces coping. CONCLUSION: In Ghana, during the COVID-19 pandemic, financial security and optimism about the disease increase one's chances of coping well while having pre-existing medical conditions, praying and sleeping more during the pandemic than before reduces one's chances of coping well. These findings should be considered in planning mental health and public health intervention/policy.


Assuntos
Adaptação Psicológica , COVID-19/epidemiologia , COVID-19/psicologia , Quarentena/psicologia , Adolescente , Adulto , Idoso , Feminino , Gana/epidemiologia , Humanos , Masculino , Pessoa de Meia-Idade , Pandemias , Adulto Jovem
17.
Artigo em Inglês | MEDLINE | ID: mdl-34299726

RESUMO

Early life respiratory microbiota may increase risk for future pulmonary disease. Associations between respiratory microbiota and lung health in children from low- and middle-income countries are not well-described. Leveraging the Ghana Randomized Air Pollution and Health Study (GRAPHS) prospective pregnancy cohort in Kintampo, Ghana, we collected nasopharyngeal swabs in 112 asymptomatic children aged median 4.3 months (interquartile range (IQR) 2.9, 7.1) and analyzed 22 common bacterial and viral pathogens with MassTag polymerase chain reaction (PCR). We prospectively followed the cohort and measured lung function at age four years by impulse oscillometry. First, we employed latent class analysis (LCA) to identify nasopharyngeal microbiota (NPM) subphenotypes. Then, we used linear regression to analyze associations between subphenotype assignment and lung function. LCA suggest that a two-class model best described the infant NPM. We identified a higher diversity subphenotype (N = 38, 34%) with more pathogens (median 4; IQR 3.25, 4.75) and a lower diversity subphenotype (N = 74, 66%) with fewer pathogens (median 1; IQR 1, 2). In multivariable linear regression models, the less diverse NPM subphenotype had higher small airway resistance (R5-R20 ß = 17.9%, 95% CI 35.6, 0.23; p = 0.047) compared with the more diverse subphenotype. Further studies are required to understand the role of the microbiota in future lung health.


Assuntos
Microbiota , Criança , Pré-Escolar , Estudos de Coortes , Feminino , Gana/epidemiologia , Humanos , Lactente , Pulmão , Gravidez , Estudos Prospectivos
18.
Toxics ; 9(7)2021 Jul 14.
Artigo em Inglês | MEDLINE | ID: mdl-34357912

RESUMO

Associations between prenatal household air pollution exposure (HAP), newborn telomere length and early childhood blood pressure are unknown. Methods: Pregnant women were randomized to liquefied petroleum gas (LPG) stove, improved biomass stove or control (traditional, open fire cook stove). HAP was measured by personal carbon monoxide (CO) (n = 97) and fine particulate matter (PM2.5) (n = 60). At birth, cord blood mononuclear cells (CBMCs) were collected for telomere length (TL) analyses. At child age four years, we measured resting blood pressure (BP) (n = 97). We employed multivariable linear regression to determine associations between prenatal HAP and cookstove arm and assessed CBMC relative to TL separately. We then examined associations between CBMC TL and resting BP. Results: Higher prenatal PM2.5 exposure was associated with reduced TL (ß = -4.9% (95% CI -8.6, -0.4), p = 0.03, per 10 ug/m3 increase in PM2.5). Infants born to mothers randomized to the LPG cookstove had longer TL (ß = 55.3% (95% CI 16.2, 109.6), p < 0.01)) compared with control. In all children, shorter TL was associated with higher systolic BP (SBP) (ß = 0.35 mmHg (95% CI 0.001, 0.71), p = 0.05, per 10% decrease in TL). Increased prenatal HAP exposure is associated with shorter TL at birth. Shorter TL at birth is associated with higher age four BP, suggesting that TL at birth may be a biomarker of HAP-associated disease risk.

19.
Heliyon ; 6(10): e05243, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-33088976

RESUMO

Illicit use of Sudan dyes, a group of harmful and carcinogenic azo dyes, in the food industry has taken a surge in various parts of the world, especially in Africa. Their use in food as additives pose a dire health risk to consumers and have been banned by various food regulatory bodies worldwide. To help increase surveillance, various methods have been proposed for their analysis in literature. This study also sought to experiment and propose an alternative method for quick, easy, cheap, robust and ecologically safe analysis of Sudan dyes in chilli pepper powder and similar matrices. The optimized method used a 6.0 mL mixture of acetone:acetonitrile (1:5 v/v) solvent in a modified QuEChERs method for extraction of Sudan dyes I-IV. The simultaneous analysis of the dyes were achieved on Shimadzu prominence UFLC 20AD coupled with SPD 20AX UV detector operated at dual wavelength of 500 and 480 nm. A total of twenty four (24) chilli pepper powder samples from eight different vendors on the Ghana market were analysed using the optimized method. Quantitation of analytes were done using the external standard calibration method with determination coefficient, R2 > 0.9999. The limit of detection (LOD) and limit of quantitation (LOQ) of the method were 0.02-0.04 mg/kg and 0.05-0.13 mg/kg respectively. A good recovery range between 85.3 - 121.2% were obtained for a spike level of 1.0 mg/kg in real samples. ANOVA analysis at 95% CL showed statistically no significant difference (p > 0.05) in the recoveries between samples and also between the individual compounds. The method experimented and proposed in this study is fast, easy, cheap, robust and ecologically safe, presenting an alternative method for routine analysis for increased rate of surveillance against the illicit use of Sudan dyes as food additives.

20.
BMC Complement Med Ther ; 20(1): 314, 2020 Oct 17.
Artigo em Inglês | MEDLINE | ID: mdl-33069215

RESUMO

BACKGROUND: This study examined the prevalence and predictors of complementary and alternative medicine use among clinic patients with hypertension and/or type 2 diabetes mellitus in western Jamaica. METHODS: A cross-sectional study using an investigator-administered questionnaire was conducted from May to August 2017. Data on sociodemographic factors, complementary and alternative medicine use, and knowledge and perceptions of complementary and alternative medicine were collected from the patients. Multivariable logistic regression analysis was used to examine associations between patient characteristics and knowledge and perceptions of complementary and alternative medicine and complementary and alternative medicine use. RESULTS: A total of 362 patients were invited to participate and 345 (95.3%) completed the questionnaire; 311 (90.1%) had hypertension, 130 (37.7%) had type 2 diabetes mellitus and 96 (27.8%) had both diseases. Seventy-nine percent of the participants with hypertension and 65% with type 2 diabetes mellitus reported current use of complementary and alternative medicine. Self-reported knowledge of complementary and alternative medicine (none/poor vs average/good/excellent) was significantly associated with complementary and alternative medicine use for hypertension (AOR = 0.33, 95% CI = 0.13-0.87) and type 2 diabetes mellitus (AOR = 0.06, 95% CI = 0.01-0.37). Believing that complementary and alternative medicine is a natural method for treating hypertension was significantly associated with complementary and alternative medicine use among patients with hypertension (AOR = 3.9, 95% CI = 1.26-12.00), and belief that it is acceptable to use prescription medication and complementary and alternative medicine simultaneously was significantly associated with complementary and alternative medicine use among patients with type 2 diabetes mellitus (AOR =7.19, CI = 1.34-38.52). CONCLUSIONS: Participants' perceptions of their knowledge and beliefs regarding complementary and alternative medicine strongly influence their use of complementary and alternative medicine. These findings can be used in designing educational interventions to promote the proper use, and mitigate detrimental effects, of complementary and alternative medicine in this population.


Assuntos
Terapias Complementares/estatística & dados numéricos , Diabetes Mellitus Tipo 2/terapia , Conhecimentos, Atitudes e Prática em Saúde , Hipertensão/terapia , Adolescente , Adulto , Estudos Transversais , Feminino , Humanos , Jamaica , Masculino , Pessoa de Meia-Idade , Prevalência , Inquéritos e Questionários , Adulto Jovem
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