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Muyenga TA, Bamitale SKD, Kibuule D, Sithole S, Mukanganyama S, Rudolph C, Venables L, Hattingh AC, van de Venter M, Ezeala CC. Kigelia africana fruit fractions inhibit in vitro alpha-glucosidase activity: a potential natural alpha-glucosidase inhibitor. BMC Complement Med Ther 2024; 24:230. [PMID: 38867199 PMCID: PMC11167833 DOI: 10.1186/s12906-024-04510-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 05/21/2024] [Indexed: 06/14/2024] Open
Abstract
BACKGROUND Diabetes affects 75% of people in low-income countries, where conventional drugs like metformin are available, but newer drugs like alpha-glucosidase inhibitors are not accessible to most Southern African patients. AIM To evaluate the α-glucosidase and α-amylase inhibitory activities of fractionated aqueous extracts of Kigelia africana fruit (KAFE) and their phytochemical fingerprints using gas chromatography-mass spectrometry (GC-MS). MATERIALS AND METHODS We studied K. africana fruit fractions' inhibitory effects on alpha-glucosidase and alpha-amylase using bioassay-guided fractionation, and analyzed their phytochemical profiles with GC-MS. KEY FINDINGS Both the aqueous extract and ethyl acetate fraction of the aqueous extract exhibited a low dose-dependent inhibition of alpha-amylase activity (p < 0.0001). At a concentration of 500 μg/mL, the aqueous extract caused an alpha-glucosidase inhibition of 64.10 ± 2.7%, with an estimated IC50 of 193.7 μg/mL, while the ethyl acetate fraction had an inhibition of 89.82 ± 0.8% and an estimated IC50 of 10.41 μg/mL. The subfraction G, which had the highest alpha-glucosidase inhibitory activity at 85.10 ± 0.7%, had significantly lower activity than the ethyl acetate fraction. The most bioactive fraction was found to contain 11"(2-cyclopenten-1-yl) undecanoic acid, ( +)- and cyclopentane undecanoic acid as well as the indole alkaloids Akuammilan-17-ol-10-methoxy, N-nitroso-2-methyl-oxazolidine and epoxide Oxirane2.2″ -(1.4-butanediyl) bis-. CONCLUSION The K. africana fruit fraction demonstrated significant alpha-glucosidase inhibitory activity, while its alpha-amylase inhibitory activity was limited. This study suggests a potential natural alpha-glucosidase inhibitor and phytocompounds that could serve as leads for developing antidiabetic agents.
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Affiliation(s)
- Tumelo Akapelwa Muyenga
- Department of Physiological Sciences, School of Medicine and Health Sciences, Mulungushi University, P.O. Box 60009, Livingstone, Zambia.
- Department of Pharmacology and Therapeutics, Faculty of Health and Veterinary Sciences, University of Namibia, Windhoek, Namibia.
| | - Samuel K Dominion Bamitale
- Department of Internal Medicine and Pharmacology, Faculty of Medicine, and Health Sciences, Eastern Cape, Walter Sisulu University, Mthatha, South Africa
| | - Dan Kibuule
- Department of Pharmacology and Therapeutics, Faculty of Health Sciences, Busitema University, Busitema, Uganda
| | - Simbarashe Sithole
- Department of Chemistry and Earth Sciences, University of Zimbabwe, Mt. Pleasant, Harare, Zimbabwe
| | - Stanley Mukanganyama
- Department of Biotechnology and Biotechnology, University of Zimbabwe, Mt. Pleasant, Harare, Zimbabwe
| | - Carlen Rudolph
- Department of Biochemistry and Microbiology, Nelson Mandela University, Port Elizabeth, South Africa
| | - Luanne Venables
- Department of Biochemistry and Microbiology, Nelson Mandela University, Port Elizabeth, South Africa
| | - Anna C Hattingh
- Department of Biochemistry and Microbiology, Nelson Mandela University, Port Elizabeth, South Africa
| | - Maryna van de Venter
- Department of Biochemistry and Microbiology, Nelson Mandela University, Port Elizabeth, South Africa
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Kibirige D, Sekitoleko I, Lumu W, Thomas N, Hawkins M, Jones AG, Hattersley AT, Smeeth L, Nyirenda MJ. Phenotypic characterization of nonautoimmune diabetes in adult Ugandans with low body mass index. Ther Adv Endocrinol Metab 2024; 15:20420188241252314. [PMID: 38808009 PMCID: PMC11131405 DOI: 10.1177/20420188241252314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 04/10/2024] [Indexed: 05/30/2024] Open
Abstract
Background Type 2 diabetes is common in relatively lean individuals in sub-Saharan Africa. It is unclear whether phenotypic differences exist between underweight and normal-weight African patients with type 2 diabetes. This study compared specific characteristics between underweight (body mass index <18.5 kg/m2) and normal-weight (body mass index of 18.5-24.9 kg/m2) adult Ugandans with new-onset nonautoimmune diabetes. Methods We collected the demographic, clinical, anthropometric, and metabolic characteristics of 160 participants with nonobese new-onset type 2 diabetes (defined as diabetes diagnosed <3 months, body mass index <25 kg/m2, and absence of islet-cell autoimmunity). These participants were categorized as underweight and normal weight, and their phenotypic characteristics were compared. Results Of the 160 participants with nonobese new-onset type 2 diabetes, 18 participants (11.3%) were underweight. Compared with those with normal weight, underweight participants presented with less co-existing hypertension (5.6% versus 28.2%, p = 0.04) and lower median visceral fat levels [2 (1-3) versus 6 (4-7), p < 0.001], as assessed by bioimpedance analysis. Pathophysiologically, they presented with a lower median 120-min post-glucose load C-peptide level [0.29 (0.13-0.58) versus 0.82 (0.39-1.50) nmol/l, p = 0.04] and a higher prevalence of insulin deficiency (66.7% versus 31.4%, p = 0.003). Conclusion This study demonstrates that nonautoimmune diabetes occurs in underweight individuals in sub-Saharan Africa and is characterized by the absence of visceral adiposity, reduced late-phase insulin secretion, and greater insulin deficiency. These findings necessitate further studies to inform how the prevention, identification, and management of diabetes in such individuals can be individualized.
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Affiliation(s)
- Davis Kibirige
- Non-Communicable Diseases Program, Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine Uganda Research Unit, Plot 51/59 Nakiwogo Road, Entebbe, Uganda
- Department of Medicine, Uganda Martyrs Hospital Lubaga, Kampala +256, Uganda
| | - Isaac Sekitoleko
- Non-Communicable Diseases Program, Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine Uganda Research Unit, Entebbe, Uganda
| | - William Lumu
- Department of Medicine, Mengo Hospital, Kampala, Uganda
| | - Nihal Thomas
- Department of Endocrinology, Diabetes, and Metabolism, Christian Medical College Vellore, Vellore, Tamil Nadu, India
| | | | - Angus G. Jones
- Institute of Biomedical and Clinical Science, University of Exeter Medical School, Exeter, UK
- Department of Diabetes and Endocrinology, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK
| | - Andrew T. Hattersley
- Institute of Biomedical and Clinical Science, University of Exeter Medical School, Exeter, UK
- Department of Diabetes and Endocrinology, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK
| | - Liam Smeeth
- Department of Non-Communicable Diseases Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, UK
| | - Moffat J. Nyirenda
- Non-Communicable Diseases Program, Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine Uganda Research Unit, Entebbe, Uganda
- Department of Non-Communicable Diseases Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, UK
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Obeng FY, Amponsah SK, Ofori EK, Afriyie DK. Medication errors at a diabetes management center in a resource-poor setting. INTERNATIONAL JOURNAL OF RISK & SAFETY IN MEDICINE 2024:JRS230062. [PMID: 38788093 DOI: 10.3233/jrs-230062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2024]
Abstract
BACKGROUND Medication errors are known to cause adverse drug reactions, hospital admissions and mortality. In most resource-poor settings, medication errors occur but are undocumented. OBJECTIVE This study sought to investigate medication errors in a diabetic clinic at Komfo Anokye Teaching Hospital (KATH), Ghana. METHODS The research combined both qualitative and quantitative data collection methods. The quantitative aspect involved retrospectively reviewing patient folders over two years (1st January 2019 to 31st December 2021). Patients' folders were reviewed to identify possible medication errors. The qualitative arm explored underlying factors and experiences related to medication errors through interviews with healthcare workers. Ten healthcare professionals at KATH were interviewed using an interview guide. RESULTS A total of 264 patients' folders were retrieved. The majority (23.11%) of the patients were between 18 and 25 y.o., and there were more females (52.27%) than males. About 60% of the patients had diabetes and hypertension comorbidity. The overall prevalence of medication errors was 18.18%. The most prevalent type of medication error identified was wrong drug formulation (n = 19, 39.58%). About 47.92% of the medication errors resulted in adverse events and this was predominantly caused by antidiabetic drugs (47.83%) and anti-hypertensive drugs (34.78%). Patients in the age category of 26-35 y.o. [aOR: 0.31, CI: 0.11-0.90] had reduced odds of medication errors whilst patients with comorbidity of diabetes and hypertension [aOR: 5.95, CI: 2.43-14.60] had an increased odds of medication errors. Large patient population, low staff numbers and inadequate knowledge of drugs by healthcare workers were factors that contributed to medication errors. CONCLUSION Medication errors was moderately high in this diabetic clinic, and the errors led to a number of adverse events. Age, diabetes and hypertension comorbidity, large patient population, low staff numbers, and inadequate knowledge about drugs were identified as factors that influenced medication errors.
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Affiliation(s)
- Frank Yaw Obeng
- Department of Internal Medicine, Komfo Anokye Teaching Hospital, Kumasi, Ghana
| | - Seth Kwabena Amponsah
- Department of Medical Pharmacology, University of Ghana Medical School, Accra, Ghana
| | - Emmanuel Kwaku Ofori
- Department of Chemical Pathology, University of Ghana Medical School, Accra, Ghana
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Manyara AM, Mwaniki E, Gill JMR, Gray CM. Knowledge, perceptions and practices towards diabetes risk in sub-Saharan Africa: a mixed-methods scoping review. Public Health Nutr 2024; 27:e104. [PMID: 38533768 PMCID: PMC11010065 DOI: 10.1017/s1368980024000752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 03/03/2024] [Accepted: 03/19/2024] [Indexed: 03/28/2024]
Abstract
OBJECTIVE To synthesise current evidence on knowledge, perceptions and practices towards type 2 diabetes risk in sub-Saharan Africa. DESIGN Mixed-methods scoping review, which included 101 studies (seventy-three quantitative, twenty qualitative and eight mixed methods) from seven electronic databases. SETTING Sub-Saharan Africa, 2000-2023. PARTICIPANTS Men and women without diabetes with mean ages ranging from 20 to 63 years. RESULTS The majority of participants in most studies knew the three main diabetes modifiable risk factors - excess weight, unhealthy diet and physical inactivity. However, most people with excess weight in almost all studies underestimated their weight. Further, the self-described ideal body weight was between midpoint of normal weight and the upper limits of overweight in most quantitative studies and was described as not too skinny but not too fat in qualitative studies. In the majority of studies, participants reported low engagement in weight control, high regular sugar intake, and low regular fruit and vegetable intake but moderate to high engagement in physical activity. Barriers to reducing diabetes risk were social (e.g. societal perceptions promoting weight gain) and environmental (e.g. limited affordability of healthy foods, high accessibility of Western diets and lack of physical activity facilities). CONCLUSION There is a need for multicomponent type 2 diabetes prevention interventions that increase knowledge of identifying diabetes risk (e.g. what constitutes excess weight) and create social and physical environments that support healthy lifestyles (e.g. societal perceptions that promote healthy living, increased availability and affordability of healthy foods and physical activity facilities).
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Affiliation(s)
- Anthony Muchai Manyara
- School of Health and Wellbeing, University of
Glasgow, Glasgow, UK
- Department of Health Systems Management and Public Health,
Technical University of Kenya, Nairobi,
Kenya
- Global Health and Ageing Research Unit, Bristol Medical School,
University of Bristol, Bristol,
UK
| | - Elizabeth Mwaniki
- Department of Health Systems Management and Public Health,
Technical University of Kenya, Nairobi,
Kenya
| | - Jason MR Gill
- School of Cardiovascular and Metabolic Health, University of
Glasgow, Glasgow, UK
| | - Cindy M Gray
- School of Health and Wellbeing, University of
Glasgow, Glasgow, UK
- School of Social and Political Sciences, University of
Glasgow, Glasgow, UK
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Kirya M, Bwayo D, Otim ME, Mutoo PB, Masaba JPM, Okibure A, Katuramu R. Prevalence of Biomarkers and Associated Factors for Chronic Kidney Disease in Adult Diabetic Out-patients in a Tertiary Hospital in Eastern Uganda - a Cross-sectional Study. RESEARCH SQUARE 2024:rs.3.rs-3992049. [PMID: 38496471 PMCID: PMC10942569 DOI: 10.21203/rs.3.rs-3992049/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
Background Chronic kidney disease (CKD) is one of the most common complications of Diabetes Mellitus (DM). DM contributes to about 66% of CKD cases globally. CKiiiD results in increased morbidity and mortality and advanced stages often require renal replacement therapy that is unaffordable for the majority of the patients. Developing countries have scanty data regarding CKD burden in diabetic patients. OBJECTIVES This study aimed at determining the prevalence of biomarkers for CKD and associated factors among diabetic patients attending the adult diabetic clinic of Mbale Regional Referral Hospital (MRRH). Methods A cross-sectional study was conducted at the adult diabetic clinic of Mbale Regional Referral Hospital in Eastern Uganda. 374 adult diabetic patients who consented, were recruited and interviewed. A urine sample for Urine Albumin Creatinine Ratio (UACR) determination and a venous blood sample for measurement of serum creatinine were obtained from each participant. The estimated glomerular filtration rate (eGFR) was determined using the CKD-EPI equation and CKD was staged according to the Kidney Disease Improving Global Outcomes (KDIGO) systems. Results A total of 318 (85%) participants had an eGFR of ≤ 60mls/min/1.72m2, significant proteinuria, or both. 6.1% were aware. Age, Duration of DM, Hypertension, and Dyslipidemia were associated with CKD biomarkers. Conclusion There is a high prevalence of biomarkers for CKD among DM patients, the majority of them being undiagnosed. Over half of the DM patients had an eGFR consistent with advanced CKD. Strengthening routine screening for CKD biomarkers and enhancing the DM clinics with more diagnostic resources is recommended.
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Dirajlal-Fargo S, Strah M, Ailstock K, Sattar A, Karungi C, Nazzinda R, Funderburg N, Kityo C, Musiime V, McComsey GA. Factors associated with insulin resistance in a longitudinal study of Ugandan youth with and without HIV. AIDS 2024; 38:177-184. [PMID: 37788113 PMCID: PMC10872911 DOI: 10.1097/qad.0000000000003741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
Abstract
Prospective investigations from sub-Saharan Africa on metabolic complications in youth with perinatally acquired HIV (PHIV) are lacking. We investigated the changes in insulin resistance in Ugandan PHIV on ART and uninfected controls and their relationship with inflammation, HIV, and cardiovascular disease (CVD) risk factors. Participants 10-18 years of age were included in a prospective study performed in Kampala, Uganda. We compared baseline and changes in insulin resistance (by HOMA-IR) and in markers of inflammation at baseline and 96 weeks. PHIVs were on ART with HIV-1 RNA level 400 copies/ml or less. Generalized Estimating Equation models were used to assess associations between HOMA-IR, and demographic as well as inflammatory markers. Of the 197 participants recruited at baseline (101 PHIV, 96 HIV-negative), 168 (89 PHIV, 79 HIV-negative) had measurements at 96 weeks. At baseline, median (Q1, Q3) age was 13 years (11,15), 53.5% were women, median CD4 + cell counts were 988 cells/μl (631, 1310). At baseline, HOMA-IR was significantly higher in PHIV than in controls ( P = 0.03). HOMA-IR did not significantly change by week 96 in either group, and at 96 weeks, was similar between groups ( P = 0.15). HOMA-IR was not associated with any inflammatory markers, or any specific ART. In longitudinal analysis, age and Tanner stage remained associated with higher HOMA-IR throughout the study period, after adjusting for HIV status. In this longitudinal cohort of virally suppressed PHIV in Uganda, PHIV have decreased insulin sensitivity compared to controls, however this difference does not persist through adolescence. ART and immune activation do not appear to affect glucose homeostasis in this population.
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Affiliation(s)
- Sahera Dirajlal-Fargo
- Northwestern University Feinberg School of Medicine, Chicago, Illinois
- Rainbow Babies and Children's Hospital
- Case Western Reserve University, Cleveland
| | | | - Kate Ailstock
- Ohio State University School of Health and Rehabilitation Sciences, Columbus, Ohio, USA
| | | | | | | | - Nicholas Funderburg
- Ohio State University School of Health and Rehabilitation Sciences, Columbus, Ohio, USA
| | | | - Victor Musiime
- Joint Clinical Research Centre
- Makerere University, Kampala, Uganda
| | - Grace A McComsey
- Rainbow Babies and Children's Hospital
- Case Western Reserve University, Cleveland
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Jackson-Morris A, Sembajwe R, Mustapha FI, Chandran A, Niyonsenga SP, Gishoma C, Onyango E, Muriuki Z, Dharamraj K, Ellermeier N, Nugent R, Kazlauskaite R. Identifying the necessary capacities for the adaptation of a diabetes phenotyping algorithm in countries of differing economic development status. Glob Health Action 2023; 16:2157542. [PMID: 36692486 PMCID: PMC9879185 DOI: 10.1080/16549716.2022.2157542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND In 2019, the World Health Organization recognised diabetes as a clinically and pathophysiologically heterogeneous set of related diseases. Little is currently known about the diabetes phenotypes in the population of low- and middle-income countries (LMICs), yet identifying their different risks and aetiology has great potential to guide the development of more effective, tailored prevention and treatment. OBJECTIVES This study reviewed the scope of diabetes datasets, health information ecosystems, and human resource capacity in four countries to assess whether a diabetes phenotyping algorithm (developed under a companion study) could be successfully applied. METHODS The capacity assessment was undertaken with four countries: Trinidad, Malaysia, Kenya, and Rwanda. Diabetes programme staff completed a checklist of available diabetes data variables and then participated in semi-structured interviews about Health Information System (HIS) ecosystem conditions, diabetes programme context, and human resource needs. Descriptive analysis was undertaken. RESULTS Only Malaysia collected the full set of the required diabetes data for the diabetes algorithm, although all countries did collect the required diabetes complication data. An HIS ecosystem existed in all settings, with variations in data hosting and sharing. All countries had access to HIS or ICT support, and epidemiologists or biostatisticians to support dataset preparation and algorithm application. CONCLUSIONS Malaysia was found to be most ready to apply the phenotyping algorithm. A fundamental impediment in the other settings was the absence of several core diabetes data variables. Additionally, if countries digitise diabetes data collection and centralise diabetes data hosting, this will simplify dataset preparation for algorithm application. These issues reflect common LMIC health systems' weaknesses in relation to diabetes care, and specifically highlight the importance of investment in improving diabetes data, which can guide population-tailored prevention and management approaches.
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Affiliation(s)
- Angela Jackson-Morris
- Center for Global Noncommunicable Diseases (AJM, RN, NE), RS Social, Statistical, and Environmental Sciences, RTI International, Seattle, WA, USA,CONTACT Angela Jackson-Morris Center for Global Noncommunicable Diseases, RTI International, 3040 Cornwallis Road, Durham, NC27709, USA
| | - Rita Sembajwe
- Center for Global Noncommunicable Diseases (AJM, RN, NE), RS Social, Statistical, and Environmental Sciences, RTI International, Seattle, WA, USA
| | - Feisul Idzwan Mustapha
- NCD section, Disease Control Division, Malaysia Ministry of Health, Kuala Lumpur, Malaysia
| | - Arunah Chandran
- NCD section, Disease Control Division, Malaysia Ministry of Health, Kuala Lumpur, Malaysia
| | | | | | - Elizabeth Onyango
- Division of Non-Communicable Disease Prevention and Control, Kenya Ministry of Health, Nairobi, Kenya
| | - Zachariah Muriuki
- Division of Non-Communicable Disease Prevention and Control, Kenya Ministry of Health, Nairobi, Kenya
| | - Kavita Dharamraj
- South Western Regional Health Authority, Princes Town, Trinidad and Tobago
| | - Nathan Ellermeier
- Center for Global Noncommunicable Diseases, Consultant, Durham, NC, USA
| | - Rachel Nugent
- Center for Global Noncommunicable Diseases (AJM, RN, NE), RS Social, Statistical, and Environmental Sciences, RTI International, Seattle, WA, USA
| | - Rasa Kazlauskaite
- Department of Internal Medicine, RUSH University Medical Center, Chicago, IL, USA
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Bengtson AM, Madlala H, Matjila MJ, Levitt N, Goedecke JH, Cu-Uvin S, McGarvey ST, Werner EF, Myer L. Associations of HIV and antiretroviral therapy with gestational diabetes in South Africa. AIDS 2023; 37:2069-2079. [PMID: 37534696 PMCID: PMC10538400 DOI: 10.1097/qad.0000000000003678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/04/2023]
Abstract
OBJECTIVE To estimate associations of HIV status and antiretroviral (ART) regimen with gestational diabetes (GDM) and postpartum glucose metabolism. DESIGN Prospective cohort study. METHODS We enrolled pregnant persons with HIV (PWH) and without HIV in Cape Town, South Africa who were at least 18 years of age at 24-28 weeks' gestation and followed up to 26 months postpartum. Participants were tested for GDM in pregnancy and for diabetes postpartum using a 75 g 2 h oral glucose tolerance test (OGTT) and diagnosed via WHO criteria. We estimated associations of HIV status and ART regime [efavirenz (EFV) versus dolutegravir (DTG)] with GDM and postpartum impaired glucose metabolism using multivariable log binomial or linear regression models. RESULTS Among 397 participants [median age 30 (interquartile range (IQR) 25-34; n = 198 without HIV, n = 199 PWH], the prevalence of GDM was 6% (9 PWH versus 3% without HIV). In multivariable analyses, PWH were at higher risk of GDM [risk ratio (RR) 3.9, 95% confidence interval (CI) 1.4-10.7] after adjustment for prepregnancy BMI and other confounders. GDM risk did not differ by ART regimen (unadjusted prevalence 8.1% DTG versus 5.6% EFV, adjusted RR 1.1, 95% CI 0.2-6.6). Few participants had diabetes, impaired glucose tolerance (IGT), or impaired fasting glucose postpartum ( n = 13, 6%) with no differences by HIV or ART status. CONCLUSION In a setting of universal GDM testing, PWH had an increased risk of impaired glucose metabolism during pregnancy but not postpartum. Among PWH, GDM risk was similar regardless of EFV or DTG use. Given concerns about DTG and weight gain, diabetes risk should continue to be monitored.
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Affiliation(s)
- Angela M Bengtson
- Department of Epidemiology and International Health Institute, Brown University School of Public Health, Providence, Rhode Island, USA
| | - Hlengiwe Madlala
- Division of Epidemiology and Biostatistics, School of Public Health and Family Medicine, University of Cape Town
| | - Mushi J Matjila
- Department of Obstetrics & Gynaecology, University of Cape Town and New Somerset Hospital
| | - Naomi Levitt
- Chronic Disease Initiative for Africa, Department of Medicine
| | - Julia H Goedecke
- Health through Physical Activity, Lifestyle and Sport Research Centre, Division of Physiological Sciences, Department of Human Biology, University of Cape Town
- Biomedical Research and Innovation Platform, South African Medical Research Council, Cape Town, South Africa
| | - Susan Cu-Uvin
- Department of Obstetrics and Gynecology and Medicine, Warren Alpert School of Medicine, Brown University, Providence, Rhode Island
| | - Stephen T McGarvey
- Department of Epidemiology and International Health Institute, Brown University School of Public Health, Providence, Rhode Island, USA
| | - Erika F Werner
- Department of Obstetrics and Gynecology, Tufts University School of Medicine, Boston, Massachusetts, USA
| | - Landon Myer
- Division of Epidemiology and Biostatistics, School of Public Health and Family Medicine, University of Cape Town
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Kibirige D, Sekitoleko I, Lumu W, Nyirenda MJ. Type 2 diabetes progression in an adult Ugandan population with new-onset diabetes: an observational prospective study. BMC PRIMARY CARE 2023; 24:214. [PMID: 37858088 PMCID: PMC10588137 DOI: 10.1186/s12875-023-02169-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 10/03/2023] [Indexed: 10/21/2023]
Abstract
BACKGROUND The rate of progression of type 2 diabetes following diagnosis varies across individuals and populations. Studies investigating the progression of type 2 diabetes in adult African populations with newly diagnosed diabetes are limited. We aimed to investigate the prevalence and predictors of short-term (one year) diabetes progression in an adult Ugandan population with new-onset type 2 diabetes (type 2 diabetes diagnosed in < 3 months) initiated on oral hypoglycaemic agents (OHA). METHODS Two hundred and seven adult participants with type 2 diabetes diagnosed within the previous three months were followed up for 12 months. We investigated the association of specific demographic, clinical, and metabolic characteristics, and short-term diabetes progression (defined as glycated haemoglobin or HbA1c ≥ 8% on ≥ 2 OHA and/or treatment intensification). RESULTS One hundred sixteen participants (56%) completed the follow-up period. Sixty-four participants (55.2%, 95% CI 45.7-64.4) showed evidence of diabetes progression during the 12-month period of follow-up. An HbA1c ≥ 8% on ≥ 2 OHA and treatment intensification were noted in 44.8% and 29.3% of the participants, respectively. On multivariate analysis, only the female gender (AOR 3.2, 95% CI 1.1-9.2, p = 0.03) was noted to be independently associated with short-term diabetes progression. CONCLUSION Short-term diabetes progression was relatively common in this study population and was independently associated with the female gender. Early intensified diabetes therapy in adult Ugandan female patients with new-onset type 2 diabetes should be emphasised to avert rapid short-term diabetes progression.
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Affiliation(s)
- Davis Kibirige
- Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine Uganda Research Unit, Non-Communicable Diseases Program, Entebbe, Uganda.
- Department of Non-Communicable Diseases Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, UK.
- Department of Medicine, Uganda Martyrs Hospital Lubaga, Kampala, Uganda.
| | - Isaac Sekitoleko
- Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine Uganda Research Unit, Non-Communicable Diseases Program, Entebbe, Uganda
| | - William Lumu
- Department of Medicine, Mengo Hospital, Kampala, Uganda
| | - Moffat J Nyirenda
- Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine Uganda Research Unit, Non-Communicable Diseases Program, Entebbe, Uganda
- Department of Non-Communicable Diseases Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, UK
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Garrib A, Kivuyo S, Bates K, Ramaiya K, Wang D, Majaliwa E, Simbauranga R, Charles G, van Widenfelt E, Luo H, Alam U, Nyirenda MJ, Jaffar S, Mfinanga S. Metformin for the prevention of diabetes among people with HIV and either impaired fasting glucose or impaired glucose tolerance (prediabetes) in Tanzania: a Phase II randomised placebo-controlled trial. Diabetologia 2023; 66:1882-1896. [PMID: 37460828 PMCID: PMC10474205 DOI: 10.1007/s00125-023-05968-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 05/12/2023] [Indexed: 09/02/2023]
Abstract
AIMS/HYPOTHESIS In sub-Saharan Africa (SSA), 5% of adults are living with type 2 diabetes and this is rising sharply, with a greater increase among people with HIV. Evidence on the efficacy of prevention strategies in this cohort is scarce. We conducted a Phase II double-blind placebo-controlled trial that aimed to determine the impact of metformin on blood glucose levels among people with prediabetes (defined as impaired fasting glucose [IFG] and/or impaired glucose tolerance [IGT]) and HIV in SSA. METHODS Adults (≥18 years old) who were stable in HIV care and found to have prediabetes (IFG and/or IGT) and who were attending hospitals in Dar es Salaam, Tanzania, were randomised to receive sustained-release metformin, 2000 mg daily, or matching placebo between 4 November 2019 and 21 July 2020. Randomisation used permuted blocks. Allocation was concealed in the trial database and made visible only to the Chief Pharmacist after consent was taken. All participants, research and clinical staff remained blinded to the allocation. Participants were provided with information on diet and lifestyle and had access to various health information following the start of the coronavirus disease 2019 (COVID-19) pandemic. Participants were followed up for 12 months. The primary outcome measure was capillary blood glucose measured 2 h following a 75 g glucose load. Analyses were by intention-to-treat. RESULTS In total, 364 participants (182 in each arm) were randomised to the metformin or placebo group. At enrolment, in the metformin and placebo arms, mean fasting glucose was 6.37 mmol/l (95% CI 6.23, 6.50) and 6.26 mmol/l (95% CI 6.15, 6.36), respectively, and mean 2 h glucose levels following a 75 g oral glucose load were 8.39 mmol/l (95% CI 8.22, 8.56) and 8.24 mmol/l (95% CI 8.07, 8.41), respectively. At the final assessment at 12 months, 145/182 (79.7%) individuals randomised to metformin compared with 158/182 (86.8%) randomised to placebo indicated that they had taken >95% of their medicines in the previous 28 days (p=0.068). At this visit, in the metformin and placebo arms, mean fasting glucose levels were 6.17 mmol/l (95% CI 6.03, 6.30) and 6.30 mmol/l (95% CI 6.18, 6.42), respectively, and mean 2 h glucose levels following a 75 g oral glucose load were 7.88 mmol/l (95% CI 7.65, 8.12) and 7.71 mmol/l (95% CI 7.49, 7.94), respectively. Using a linear mixed model controlling for respective baseline values, the mean difference between the metformin and placebo group (metformin-placebo) was -0.08 mmol/l (95% CI -0.37, 0.20) for fasting glucose and 0.20 mmol/l (95% CI -0.17, 0.58) for glucose levels 2 h post a 75 g glucose load. Weight was significantly lower in the metformin arm than in the placebo arm: using the linear mixed model adjusting for baseline values, the mean difference in weight was -1.47 kg (95% CI -2.58, -0.35). In total, 16/182 (8.8%) individuals had a serious adverse event (Grade 3 or Grade 4 in the Division of Acquired Immunodeficiency Syndrome [DAIDS] adverse event grading table) or died in the metformin arm compared with 18/182 (9.9%) in the placebo arm; these events were either unrelated to or unlikely to be related to the study drugs. CONCLUSIONS/INTERPRETATION Blood glucose decreased over time in both the metformin and placebo arms during the trial but did not differ significantly between the arms at 12 months of follow up. Metformin therapy was found to be safe for use in individuals with HIV and prediabetes. A larger trial with longer follow up is needed to establish if metformin can be safely used for the prevention of diabetes in people who have HIV. TRIAL REGISTRATION The trial is registered on the International Standard Randomised Controlled Trial Number (ISRCTN) registry ( www.isrctn.com/ ), registration number: ISCRTN76157257. FUNDING This research was funded by the National Institute for Health Research using UK aid from the UK Government to support global health research.
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Affiliation(s)
- Anupam Garrib
- UCL Institute for Global Health, University College London, London, UK.
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK.
| | - Sokoine Kivuyo
- Muhimbili Medical Research Centre, National Institute for Medical Research, Dar es Salaam, Tanzania
| | - Katie Bates
- UCL Institute for Global Health, University College London, London, UK
- Institute of Medical Statistics and Informatics, Medical University Innsbruck, Innsbruck, Austria
| | | | - Duolao Wang
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Edna Majaliwa
- Shree Hindu Mandal Hospital, Dar es Salaam, Tanzania
| | - Rehema Simbauranga
- Muhimbili Medical Research Centre, National Institute for Medical Research, Dar es Salaam, Tanzania
| | - Godbless Charles
- Muhimbili Medical Research Centre, National Institute for Medical Research, Dar es Salaam, Tanzania
| | | | - Huanyan Luo
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Uazman Alam
- Department of Cardiovascular and Metabolic Medicine, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool, UK
- Liverpool University NHS Hospital Foundation Trust, Liverpool, UK
- Department of Diabetes, Endocrinology and Gastroenterology, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - Moffat J Nyirenda
- Department of Non-communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine (LSHTM), London, UK
- NCD Theme, MRC/UVRI & LSHTM Uganda Research Unit, Entebbe, Uganda
| | - Shabbar Jaffar
- UCL Institute for Global Health, University College London, London, UK
| | - Sayoki Mfinanga
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
- Muhimbili Medical Research Centre, National Institute for Medical Research, Dar es Salaam, Tanzania
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11
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Akintoye OO, Fasina OP, Adiat TS, Nwosu PU, Olubodun MO, Adu BG. Outcomes of Coronary Artery Bypass Graft Surgery in Africa: A Systematic Review and Meta-Analysis. Cureus 2023; 15:e47541. [PMID: 37881326 PMCID: PMC10597594 DOI: 10.7759/cureus.47541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/18/2023] [Indexed: 10/27/2023] Open
Abstract
Coronary artery bypass graft (CABG) surgery has been in practice for many decades, and it is one of the most commonly performed cardiac surgeries worldwide. While there are several studies reporting data on perioperative outcomes following CABG in developed countries, there is a staggering paucity of data and evidence reporting the outcomes in developing areas such as Africa. Thus, it is important to study the practice and outcome of CABG in Africa to establish its clinical efficacy and safety in this region and identify factors that might be limiting its practice. The overall aim of this study is to identify all relevant clinical data on CABG in Africa and report on the perioperative outcomes and practice of CABG in the African population. Electronic search was performed using three online databases, PubMed, African Journal Online, and Research Gate, from inception to June 2023. The preferred reporting items for systematic reviews and meta-analysis (PRISMA) guideline was utilised for this study. Relevant studies fulfilling predefined eligibility criteria were included in the study. Intraoperative details, such as the number of grafts performed, operative, bypass, and cross-clamp time, were reported. The primary endpoint assessed were early mortality and overall mortality. The secondary endpoints included length of hospital stay, intensive care unit stay, and postoperative complications, such as renal impairment, atrial fibrillation, and surgical site infection. The data were pooled together and meta-analyzed using a random effect model for proportions and mean for meta-analysis with R software (version 4.3.1 (2023-06-16); R Development Core Team, Vienna, Austria). This systematic review identified 42 studies that fulfilled the study eligibility criteria, including 21 randomised controlled trials, 20 observational studies, and one cross-sectional study. Only four out of the 54 countries in Africa had studies carried out that met the criteria for this review; they included Algeria, Egypt, Nigeria, and South Africa, with a majority from Egypt. Meta-analysis reported a pooled early mortality and pooled overall mortality of 3.51% and 3.73%, respectively, for the total cohort of patients. The result of this meta-analysis suggests that mortality outcomes following CABG in Africa are relatively higher than those in developed nations. Several issues, such as lack of financial resources and poor infrastructure, continue to hinder the optimal practice of CABG procedures in many parts of Africa. Further studies focused on finding factors associated with outcomes following CABG should be done. Though there were a few limitations to the study largely from a lack of data from several regions and countries in Africa, the result from this meta-analysis can serve as a benchmark for future studies until more relevant data are reported.
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Affiliation(s)
| | - Oyinlola P Fasina
- Cardiothoracic Surgery, Surgery Interest Group of Africa, Lagos, NGA
| | - Tijani S Adiat
- Cardiothoracic Surgery, Surgery Interest Group of Africa, Lagos, NGA
| | - Promise U Nwosu
- Cardiothoracic Surgery, Surgery Interest Group of Africa, Lagos, NGA
| | | | - Bukola G Adu
- Cardiothoracic Surgery, Surgery Interest Group of Africa, Lagos, NGA
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12
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Bleah P, Wilson R, Macdonald D, Camargo-Plazas P. 'The solution is we need to have a centre': a study on diabetes in Liberia. Health Promot Int 2023; 38:daad120. [PMID: 37773628 DOI: 10.1093/heapro/daad120] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/01/2023] Open
Abstract
In Liberia, one of the poorest nations in sub-Saharan Africa, the burden of diabetes is a growing concern. The high mortality and morbidity associated with diabetes have significant implications for individuals, families and society at large. The aim of this critical hermeneutic study was to explore what it is like to live with diabetes in Liberia. We recruited 10 participants from Monrovia, Liberia to partake in this study. Photovoice, a well-established participatory data collection approach was used to gather images and stories that represented participants' everyday experiences of living with diabetes. Three major themes were uncovered, highlighting the strengths, challenges and solutions related to living with diabetes in Liberia: strengths-engagement in diabetes self-management practices, focused on participants' commitment to engage in diabetes self-management practices despite the socioeconomic challenges they experienced; challenges-lack of social and economic support, focused on limited access to food, diabetes medications and supplies and diabetes education; and solutions-centre for diabetes education, care and support, focused on participants' recommendations for a community-based diabetes centre, a single point of access for meeting the needs of people with diabetes. A strong commitment to prioritize diabetes on Liberia's national health agenda and increased resources for diabetes care is needed to address the challenges experienced by people living with this chronic disease in Liberia.
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Affiliation(s)
- Paulina Bleah
- School of Nursing, Queen's University, 92 Barrie Street, Kingston, Ontario K7L 3N6, Canada
| | - Rosemary Wilson
- School of Nursing, Queen's University, 92 Barrie Street, Kingston, Ontario K7L 3N6, Canada
| | - Danielle Macdonald
- School of Nursing, Queen's University, 92 Barrie Street, Kingston, Ontario K7L 3N6, Canada
| | - Pilar Camargo-Plazas
- School of Nursing, Queen's University, 92 Barrie Street, Kingston, Ontario K7L 3N6, Canada
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13
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Ndara FN, Nuuyoma V. Patients' lived experiences of self-injectable diabetes treatment: A phenomenological study. Health SA 2023; 28:2359. [PMID: 38021208 PMCID: PMC10659562 DOI: 10.4102/hsag.v28i0.2359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Accepted: 07/28/2023] [Indexed: 12/01/2023] Open
Abstract
Background A diabetes diagnosis has significant implications and affects the individual's health and social opportunities; it may also carry ethical and cultural consequences, especially when self-injectable treatment is involved. Therefore, it is important to understand lived experiences of patients on self-injectable diabetes treatment to establish initiatives and develop coping mechanisms that may reduce disease morbidity. Aim This study explored and described patients' lived experiences of self-injectable treatment for diabetes mellitus type 1 and 2. Setting The study was conducted in the Rundu health district, Kavango east region, Namibia. Method A phenomenological qualitative design was used. The sample consisted of 10 purposively selected patients on self-injectable treatment and data were collected through unstructured individual interviews. Data analysis followed an interpretative phenomenological approach. Ethical principles were adhered to, including respect for autonomy, non-maleficence, beneficence, and justice and ethical clearance was obtained. Results Self-injectable treatment is cost-effective, promotes self-care, and relieves the burden on nurses and doctors. But it is a lonely journey, causing uncertainty about the future and self-stigmatisation. Moreover, unfamiliarity with injection techniques, challenges in storing medication, and disposing of used needles and other waste were revealed. Conclusion Patients on self-injectable diabetes treatment have positive and negative lived experiences. It is recommended that family members provide adequate support and that healthcare workers reinforce education on diabetes for these individuals. Contribution The findings can be used to develop patients' education and training packages, guide the development and implementation of diabetes coping mechanisms, and initiate intersectoral collaboration to assist patients undergoing injectable treatment.
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Affiliation(s)
- Frans N. Ndara
- School of Nursing and Public Health, Faculty of Health
Sciences and Veterinary Medicine, University of Namibia, Rundu, Namibia
| | - Vistolina Nuuyoma
- School of Nursing and Public Health, Faculty of Health
Sciences and Veterinary Medicine, University of Namibia, Rundu, Namibia
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14
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Kyalisiima I, Kitutu FE, Gibson L, Akaso I, Ndaabe A, Aguma HB, Musoke D, Adome RO, Kutyabami P. Compliance of public health facilities with essential medicines and health supplies redistribution guidelines in Mbale district, Eastern Uganda: a mixed-methods study. J Pharm Policy Pract 2023; 16:32. [PMID: 36855054 PMCID: PMC9976424 DOI: 10.1186/s40545-023-00545-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 02/20/2023] [Indexed: 03/02/2023] Open
Abstract
INTRODUCTION Redistribution of essential medicines and health supplies (EMHS) is a mechanism to address supply chain uncertainty by moving excess stock of health commodities from health facilities that are overstocked to health facilities with shortages, where it is most needed. It prevents the wastage of scarce resources and improves efficiency within a health supply chain system. Many public health facilities in Uganda experience stock-outs, overstocking, and expiry of essential medicines. This study assessed the compliance of public health facilities with the Uganda Ministry of Health redistribution strategy for EMHS in Mbale district, Eastern Uganda. METHODS A mixed-methods study was conducted among 55 respondents at public health facility level and five key informants at the district level. Audio-recorded data were transcribed and coded to develop themes. Thematic analysis was performed using ATLAS.ti Version 8.5. Quantitative data were analysed using IBM SPSS Version 24.0. RESULTS About a third (33%) of the surveyed health facilities complied with EMHS redistribution guidelines. Respondents agreed that EMHS redistribution had helped reduce health commodity expiries and stock-outs in health facilities. Respondents who did not know about the timely release of funds for redistribution were 68% less likely to comply, and those who said the guidelines were never shared were 88% less likely to comply with the guidelines. CONCLUSIONS Compliance with the EMHS redistribution guidelines was low and associated with failure to share the guidelines with staff and inadequate awareness about release funds for EMHS redistribution. The district local government should allocate more funds to the EMHS redistribution.
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Affiliation(s)
- Immaculate Kyalisiima
- grid.11194.3c0000 0004 0620 0548Department of Pharmacy, Makerere University School of Health Sciences, P.O Box 7062, Kampala, Uganda
| | - Freddy Eric Kitutu
- grid.11194.3c0000 0004 0620 0548Department of Pharmacy, Makerere University School of Health Sciences, P.O Box 7062, Kampala, Uganda
| | - Linda Gibson
- grid.12361.370000 0001 0727 0669School of Social Sciences, Nottingham Trent University, Nottingham, UK
| | - Immaculate Akaso
- grid.11194.3c0000 0004 0620 0548Department of Pharmacy, Makerere University School of Health Sciences, P.O Box 7062, Kampala, Uganda
| | - Amos Ndaabe
- grid.11194.3c0000 0004 0620 0548Department of Pharmacy, Makerere University School of Health Sciences, P.O Box 7062, Kampala, Uganda
| | - Herbert Bush Aguma
- Department of Pharmacy, Makerere University School of Health Sciences, P.O Box 7062, Kampala, Uganda.
| | - David Musoke
- grid.11194.3c0000 0004 0620 0548School of Public Health, Makerere University, P. O. Box 7072, Kampala, Uganda
| | - Richard Odoi Adome
- grid.11194.3c0000 0004 0620 0548Department of Pharmacy, Makerere University School of Health Sciences, P.O Box 7062, Kampala, Uganda
| | - Paul Kutyabami
- grid.11194.3c0000 0004 0620 0548Department of Pharmacy, Makerere University School of Health Sciences, P.O Box 7062, Kampala, Uganda
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15
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Yamada T, Kimura-Koyanagi M, Sakaguchi K, Ogawa W, Tamori Y. Obesity and risk for its comorbidities diabetes, hypertension, and dyslipidemia in Japanese individuals aged 65 years. Sci Rep 2023; 13:2346. [PMID: 36759688 PMCID: PMC9911391 DOI: 10.1038/s41598-023-29276-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 02/01/2023] [Indexed: 02/11/2023] Open
Abstract
Diabetes, hypertension, and dyslipidemia are obesity-related comorbidities that contribute to the development of cardiovascular disease, one of the leading causes of death. In addition to obesity, the underweight condition is a concern because it can give rise to sarcopenia, particularly after the age of 65 years. We examined the risk for diabetes, hypertension, and dyslipidemia due to obesity in individuals of this age. We retrospectively investigated the relation between obesity and its three major comorbidities in 10,852 individuals aged 65 years who underwent health checkups implemented by Kobe City between April 2017 and March 2021. The prevalence of diabetes, hypertension, and dyslipidemia with and without hyper-low-density lipoprotein-cholesterolemia was 9.7%, 41.0%, 63.8%, and 19.5%, respectively, and the prevalence of these conditions increased with increasing obesity. The risk for diabetes and hypertension was increased markedly (odds ratios of 12.95 and 19.44, respectively), and that for dyslipidemia with and without hyper-low-density lipoprotein-cholesterolemia was modestly increased (odds ratios of 2.59 and 3.65, respectively) at a BMI of ≥ 35 kg/m2 compared with normal weight. Analysis by gender revealed that the obesity-related risk for dyslipidemia with hyper-low-density lipoprotein-cholesterolemia was small compared with other comorbidities in women, while the risk for all comorbidities elevated similarly in men. Our results suggest the importance of public health intervention for obesity to suppress its comorbidities, especially diabetes and hypertension, at this age.
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Affiliation(s)
- Tomoko Yamada
- Department of Nutrition, Kobe University Hospital, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan.,Division of Diabetes and Endocrinology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Maki Kimura-Koyanagi
- Integrated Clinical Education Center, Kobe University Hospital, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Kazuhiko Sakaguchi
- Division of Diabetes and Endocrinology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan.,Division of General Internal Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Wataru Ogawa
- Division of Diabetes and Endocrinology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Yoshikazu Tamori
- Division of Diabetes and Endocrinology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan. .,Division of Creative Health Promotion, Department of Social/Community Medicine and Health Science, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan.
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16
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Dawed AY, Haider E, Pearson ER. Precision Medicine in Diabetes. Handb Exp Pharmacol 2023; 280:107-129. [PMID: 35704097 DOI: 10.1007/164_2022_590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Tailoring treatment or management to groups of individuals based on specific clinical, molecular, and genomic features is the concept of precision medicine. Diabetes is highly heterogenous with respect to clinical manifestations, disease progression, development of complications, and drug response. The current practice for drug treatment is largely based on evidence from clinical trials that report average effects. However, around half of patients with type 2 diabetes do not achieve glycaemic targets despite having a high level of adherence and there are substantial differences in the incidence of adverse outcomes. Therefore, there is a need to identify predictive markers that can inform differential drug responses at the point of prescribing. Recent advances in molecular genetics and increased availability of real-world and randomised trial data have started to increase our understanding of disease heterogeneity and its impact on potential treatments for specific groups. Leveraging information from simple clinical features (age, sex, BMI, ethnicity, and co-prescribed medications) and genomic markers has a potential to identify sub-groups who are likely to benefit from a given drug with minimal adverse effects. In this chapter, we will discuss the state of current evidence in the discovery of clinical and genetic markers that have the potential to optimise drug treatment in type 2 diabetes.
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Affiliation(s)
- Adem Y Dawed
- Division of Population Health and Genomics, School of Medicine, University of Dundee, Dundee, UK
| | - Eram Haider
- Division of Population Health and Genomics, School of Medicine, University of Dundee, Dundee, UK
| | - Ewan R Pearson
- Division of Population Health and Genomics, School of Medicine, University of Dundee, Dundee, UK.
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Wentzel A, Duhuze Karera MG, Patterson AC, Waldman ZC, Schenk BR, Mabundo LS, DuBose CW, Horlyck-Romanovsky MF, Sumner AE. The Africans in America study demonstrates that subclinical cardiovascular risk differs by etiology of abnormal glucose tolerance. Sci Rep 2022; 12:16947. [PMID: 36216842 PMCID: PMC9551031 DOI: 10.1038/s41598-022-19917-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 09/06/2022] [Indexed: 12/29/2022] Open
Abstract
Abnormal-glucose tolerance (Abnl-GT) is due to an imbalance between β-cell function and insulin resistance (IR) and is a major risk factor in cardiovascular disease (CVD). In sub-Saharan Africa, β-cell failure is emerging as an important cause of Abnl-GT (Abnl-GT-β-cell-failure). Visceral adipose tissue (VAT) volume and hyperlipidemia are major contributors to CVD risk when Abnl-GT is due to IR (Abnl-GT-IR). Yet, the CVD profile associated with Abnl-GT-β-cell failure is unknown. Therefore, our goals in 450 African-born Blacks (Male: 65%; Age: 39 ± 10 years; BMI 28 ± 5 kg/m2), living in America were to: (1) determine Abnl-GT prevalence and etiology; (2) assess by Abnl-GT etiology, associations between four understudied subclinical CVD risk factors in Africans: (a) subclinical myocardial damage (high-sensitivity troponin T (hs-cTnT)); (b) neurohormonal regulation (N-terminal pro-Brain-natriuretic peptide (NT-proBNP)); (c) coagulability (fibrinogen); (d) inflammation (high-sensitivity C-reactive protein (hsCRP)), as well as HbA1c, Cholesterol/HDL ratio and VAT. Glucose tolerance status was determined by the OGTT. IR was defined by the threshold at the lowest quartile for the Matsuda Index (≤ 2.97). Abnl-GT-IR required both Abnl-GT and IR. Abnl-GT-β-cell-failure was defined as Abnl-GT without IR. VAT was assessed by CT-scan. For both the Abnl-GT-β-cell-failure and Abnl-GT-IR groups, four multiple regression models were performed for hs-cTnT; NT-proBNP; fibrinogen and hsCRP, as dependent variables, with the remaining three biomarkers and HbA1c, Cholesterol/HDL and VAT as independent variables. Abnl-GT occurred in 38% (170/450). In the Abnl-GT group, β-cell failure occurred in 58% (98/170) and IR in 42% (72/170). VAT and Cholesterol/HDL were significantly lower in Abnl-GT-β-cell-failure group vs the Abnl-GT-IR group (both P < 0.001). In the Abnl-GT-β-cell-failure group: significant associations existed between hscTnT, fibrinogen, hs-CRP, and HbA1c (all P < 0.05), and none with Cholesterol/HDL or VAT. In Abnl-GT-IR: hs-cTnT, fibrinogen and hsCRP significantly associated with Cholesterol/HDL (all P < 0.05) and NT-proBNP inversely related to fibrinogen, hsCRP, HbA1c, Cholesterol/HDL, and VAT (all P < 0.05). The subclinical CVD risk profile differed between Abnl-GT-β-cell failure and Abnl-GT-IR. In Abnl-GT-β-cell failure subclinical CVD risk involved subclinical-myocardial damage, hypercoagulability and increased inflammation, but not hyperlipidemia or visceral adiposity. For Abnl-GT-IR, subclinical CVD risk related to subclinical myocardial damage, neurohormonal dysregulation, inflammation associated with hyperlipidemia and visceral adiposity. ClinicalTrials.gov Identifier: NCT00001853.
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Affiliation(s)
- Annemarie Wentzel
- grid.94365.3d0000 0001 2297 5165Section on Ethnicity and Health, Diabetes, Endocrinology, and Obesity Branch, National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD USA ,grid.25881.360000 0000 9769 2525Hypertension in Africa Research Team (HART), North-West University (NWU), Potchefstroom, North-West South Africa ,grid.25881.360000 0000 9769 2525South African Medical Research Council, Unit for Hypertension and Cardiovascular Disease, North-West University, Potchefstroom, North-West South Africa
| | - M. Grace Duhuze Karera
- grid.94365.3d0000 0001 2297 5165Section on Ethnicity and Health, Diabetes, Endocrinology, and Obesity Branch, National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD USA ,grid.94365.3d0000 0001 2297 5165National Institute of Minority Health and Health Disparities, National Institutes of Health, Bethesda, MD USA ,grid.507436.30000 0004 8340 5635Institute of Global Health Equity Research, University of Global Health Equity, Kigali, Rwanda
| | - Arielle C. Patterson
- grid.94365.3d0000 0001 2297 5165Section on Ethnicity and Health, Diabetes, Endocrinology, and Obesity Branch, National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD USA
| | - Zoe C. Waldman
- grid.94365.3d0000 0001 2297 5165Section on Ethnicity and Health, Diabetes, Endocrinology, and Obesity Branch, National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD USA
| | - Blayne R. Schenk
- grid.94365.3d0000 0001 2297 5165Section on Ethnicity and Health, Diabetes, Endocrinology, and Obesity Branch, National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD USA
| | - Lilian S. Mabundo
- grid.94365.3d0000 0001 2297 5165Section on Ethnicity and Health, Diabetes, Endocrinology, and Obesity Branch, National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD USA
| | - Christopher W. DuBose
- grid.94365.3d0000 0001 2297 5165Section on Ethnicity and Health, Diabetes, Endocrinology, and Obesity Branch, National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD USA
| | - Margrethe F. Horlyck-Romanovsky
- grid.94365.3d0000 0001 2297 5165Section on Ethnicity and Health, Diabetes, Endocrinology, and Obesity Branch, National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD USA ,grid.212340.60000000122985718Department of Health and Nutrition Sciences, Brooklyn College, City University of New York, New York, USA
| | - Anne E. Sumner
- grid.94365.3d0000 0001 2297 5165Section on Ethnicity and Health, Diabetes, Endocrinology, and Obesity Branch, National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD USA ,grid.94365.3d0000 0001 2297 5165National Institute of Minority Health and Health Disparities, National Institutes of Health, Bethesda, MD USA
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Ahmed S, PrayGod G, R. Lee N, Kelly P, Trilok-Kumar G, Chisenga M, Kweka B, Faurholt-Jepsen D, Krogh-Madsen R, AM Shaw J, M. Paglinawan-Modoc D, Solon J, Frahm Olsen M, Stefanovski D, Cox S, Nitsch D, Keogh R, Filteau S. Long-term health after Severe Acute Malnutrition in children and adults- the role of the Pancreas (SAMPA): Protocol. F1000Res 2022; 11:777. [PMID: 36300035 PMCID: PMC9577280 DOI: 10.12688/f1000research.123389.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/30/2022] [Indexed: 01/13/2023] Open
Abstract
Background: Prenatal growth retardation may increase the risk of later chronic non-communicable diseases (NCDs), including diabetes; however, long-term effects of wasting malnutrition in childhood or adulthood are less studied. Pancreatic exocrine and endocrine functions, both critical for nutrition and NCD aetiology, may not fully recover following malnutrition. However, the evidence and mechanistic information is piecemeal. We hypothesise that wasting malnutrition at any age has long-term detrimental effects on endocrine and exocrine pancreatic structure and function. Methods: The SAMPA international research programme will assess pancreatic structure and function in 3700 participants from ongoing observational nutrition cohorts, two adolescent and four adult, in Zambia, Tanzania, Philippines, and India. Pancreas size, structure, and calcification will be assessed by ultrasound and computed tomography (CT) scan; exocrine function by faecal elastase and serum lipase; and endocrine function by haemoglobin A1c (HbA1c) and blood glucose, insulin and C-peptide concentrations during an oral glucose tolerance test (OGTT). In-depth hormonal analyses of incretins, glucagon, proinsulin and trypsinogen during OGTT and intravenous glucose tolerance tests will be done in subsets of adult participants. Pancreatic size and function outcomes will be compared between people with and without prior wasting malnutrition. Analyses will investigate effect modification by sex, current age, time since malnutrition, current body mass index and dietary patterns. Mathematical modelling of OGTT data will be used to estimate the relative contribution to glucose dysregulation of decreased insulin production, changes in insulin clearance and increased insulin resistance. Proinsulin/insulin ratio will be analysed in archived samples from the Tanzanian cohort using a nested case-control design to investigate whether abnormal values precede diabetes. Conclusions: SAMPA, a large-scale multi-centre research programme using data from people with or without prior wasting malnutrition to assess several aspects of pancreatic phenotype, will provide coherent evidence for future policies and programmes for malnutrition and diabetes.
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Affiliation(s)
- Sana Ahmed
- Institute of Home Economics, University of Delhi, Delhi, 110016, India,
| | - George PrayGod
- National Institute for Medical Research, Mwanza, Tanzania
| | - Nanette R. Lee
- USC-Office of Population Studies Foundation, Inc., University of San Carlos, Populations Studies Foundation, Cebu City, 6000, Philippines
| | - Paul Kelly
- University Teaching Hospital, Lusaka, Zambia,Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Geeta Trilok-Kumar
- Institute of Home Economics, University of Delhi, Delhi, 110016, India,Delhi School of Public Health, Institution of Eminence, University of Delhi, Delhi, 110007, India
| | | | - Belinda Kweka
- National Institute for Medical Research, Mwanza, Tanzania
| | | | - Rikke Krogh-Madsen
- Centre for Physical Activity Research, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark,Department of Infectious Diseases, Copenhagen University Hospital, Amager and Hvidovre, Hvidovre, Denmark
| | - James AM Shaw
- Translational and Clinical Research Institute, Newcastle University, The Medical School, Framlington Place, Newcastle-upon-Tyne, UK
| | | | - Juan Solon
- Nutrition Center of the Philippines, Muntinlupa City, Manila, Philippines
| | - Mette Frahm Olsen
- Department of Infectious Diseases, Rigshospitalet, Copenhagen, 2100, Denmark,Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, 1017, Denmark
| | - Darko Stefanovski
- Department of Clinical Studies, New Bolton Center, University of Pennsylvania School of Veterinary Medicine, Philadelphia, USA
| | - Sharon Cox
- Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, WC1E 7HT, UK
| | - Dorothea Nitsch
- Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, WC1E 7HT, UK
| | - Ruth Keogh
- Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, WC1E 7HT, UK
| | - Suzanne Filteau
- Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, WC1E 7HT, UK
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Wentzel A, Patterson AC, Duhuze Karera MG, Waldman ZC, Schenk BR, DuBose CW, Sumner AE, Horlyck-Romanovsky MF. Non-invasive type 2 diabetes risk scores do not identify diabetes when the cause is β-cell failure: The Africans in America study. Front Public Health 2022; 10:941086. [PMID: 36211668 PMCID: PMC9537602 DOI: 10.3389/fpubh.2022.941086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 08/19/2022] [Indexed: 01/25/2023] Open
Abstract
Background Emerging data suggests that in sub-Saharan Africa β-cell-failure in the absence of obesity is a frequent cause of type 2 diabetes (diabetes). Traditional diabetes risk scores assume that obesity-linked insulin resistance is the primary cause of diabetes. Hence, it is unknown whether diabetes risk scores detect undiagnosed diabetes when the cause is β-cell-failure. Aims In 528 African-born Blacks living in the United States [age 38 ± 10 (Mean ± SE); 64% male; BMI 28 ± 5 kg/m2] we determined the: (1) prevalence of previously undiagnosed diabetes, (2) prevalence of diabetes due to β-cell-failure vs. insulin resistance; and (3) the ability of six diabetes risk scores [Cambridge, Finnish Diabetes Risk Score (FINDRISC), Kuwaiti, Omani, Rotterdam, and SUNSET] to detect previously undiagnosed diabetes due to either β-cell-failure or insulin resistance. Methods Diabetes was diagnosed by glucose criteria of the OGTT and/or HbA1c ≥ 6.5%. Insulin resistance was defined by the lowest quartile of the Matsuda index (≤ 2.04). Diabetes due to β-cell-failure required diagnosis of diabetes in the absence of insulin resistance. Demographics, body mass index (BMI), waist circumference, visceral adipose tissue (VAT), family medical history, smoking status, blood pressure, antihypertensive medication, and blood lipid profiles were obtained. Area under the Receiver Operator Characteristics Curve (AROC) estimated sensitivity and specificity of each continuous score. AROC criteria were: Outstanding: >0.90; Excellent: 0.80-0.89; Acceptable: 0.70-0.79; Poor: 0.50-0.69; and No Discrimination: 0.50. Results Prevalence of diabetes was 9% (46/528). Of the diabetes cases, β-cell-failure occurred in 43% (20/46) and insulin resistance in 57% (26/46). The β-cell-failure group had lower BMI (27 ± 4 vs. 31 ± 5 kg/m2 P < 0.001), lower waist circumference (91 ± 10 vs. 101 ± 10cm P < 0.001) and lower VAT (119 ± 65 vs. 183 ± 63 cm3, P < 0.001). Scores had indiscriminate or poor detection of diabetes due to β-cell-failure (FINDRISC AROC = 0.49 to Cambridge AROC = 0.62). Scores showed poor to excellent detection of diabetes due to insulin resistance, (Cambridge AROC = 0.69, to Kuwaiti AROC = 0.81). Conclusions At a prevalence of 43%, β-cell-failure accounted for nearly half of the cases of diabetes. All six diabetes risk scores failed to detect previously undiagnosed diabetes due to β-cell-failure while effectively identifying diabetes when the etiology was insulin resistance. Diabetes risk scores which correctly classify diabetes due to β-cell-failure are urgently needed.
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Affiliation(s)
- Annemarie Wentzel
- Section on Ethnicity and Health, Diabetes, Endocrinology, and Obesity Branch, National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, United States,Hypertension in Africa Research Team, North-West University, Potchefstroom, South Africa,South African Medical Research Council, Unit for Hypertension and Cardiovascular Disease, North-West University, Potchefstroom, South Africa,*Correspondence: Annemarie Wentzel
| | - Arielle C. Patterson
- Section on Ethnicity and Health, Diabetes, Endocrinology, and Obesity Branch, National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, United States
| | - M. Grace Duhuze Karera
- Section on Ethnicity and Health, Diabetes, Endocrinology, and Obesity Branch, National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, United States,National Institute of Minority Health and Health Disparities, National Institutes of Health, Bethesda, MD, United States,Institute of Global Health Equity Research, University of Global Health Equity, Kigali, Rwanda
| | - Zoe C. Waldman
- Section on Ethnicity and Health, Diabetes, Endocrinology, and Obesity Branch, National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Blayne R. Schenk
- Section on Ethnicity and Health, Diabetes, Endocrinology, and Obesity Branch, National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Christopher W. DuBose
- Section on Ethnicity and Health, Diabetes, Endocrinology, and Obesity Branch, National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Anne E. Sumner
- Section on Ethnicity and Health, Diabetes, Endocrinology, and Obesity Branch, National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, United States,National Institute of Minority Health and Health Disparities, National Institutes of Health, Bethesda, MD, United States
| | - Margrethe F. Horlyck-Romanovsky
- Section on Ethnicity and Health, Diabetes, Endocrinology, and Obesity Branch, National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, United States,Department of Health and Nutrition Sciences, Brooklyn College, City University of New York, New York, NY, United States,Margrethe F. Horlyck-Romanovsky
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20
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Kasujja FX, Mayega RW, Daivadanam M, Kiracho EE, Kusolo R, Nuwaha F. Glycated haemoglobin and fasting plasma glucose tests in the screening of outpatients for diabetes and abnormal glucose regulation in Uganda: A diagnostic accuracy study. PLoS One 2022; 17:e0272515. [PMID: 35925994 PMCID: PMC9352087 DOI: 10.1371/journal.pone.0272515] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 07/20/2022] [Indexed: 11/18/2022] Open
Abstract
Background and objectives To understand the utility of glycated haemoglobin (HBA1C) in screening for diabetes and Abnormal Glucose Regulation (AGR) in primary care, we compared its performance to that of the fasting plasma glucose (FPG) test. Methods This was a prospective diagnostic accuracy study conducted in eastern Uganda. Patients eligible for inclusion were consecutive adults, 30–75 years, receiving care at the outpatient department of a general hospital in eastern Uganda. We determined the sensitivity, specificity and optimum cut-off points for HBA1C and FPG tests using the oral glucose tolerance test (OGTT) as a clinical reference standard. Results A total of 1659 participants underwent FPG testing of whom 310 were also HBA1C and OGTT tested. A total of 113 tested positive for diabetes and 168 for AGR on the OGTT. At recommended cut-off points for diabetes, the HBA1C and FPG tests had comparable sensitivity [69.8% (95% CI 46.3–86.1) versus 62.6% (95% CI 41.5–79.8), respectively] and specificity [98.6% (95% CI 95.4–99.6) versus 99.4% (95% CI 98.9–99.7), respectively]. Similarly, the sensitivity of HBA1C and the FPG tests for Abnormal Glucose Regulation (AGR) at ADA cut-offs were comparable [58.9% (95% CI 46.7–70.2) vs 47.7% (95% CI 37.3–58.4), respectively]; however, the HBA1C test had lower specificity [70.7% (95% CI 65.1–75.8)] than the FPG test [93.5% (95% CI 88.6–96.4)]. At the optimum cut-offs points for diabetes [45.0 mmol/mol (6.3%) for HBA1C and 6.4 mmol/L (115.2 mg/dl) for FPG], HBA1C and FPG sensitivity [71.2% (95% CI 46.9–87.8) versus 72.7% (95% CI 49.5–87.8), respectively] and specificity [95.1% (95% CI91.8 97.2) versus 98.7% (95% CI 98.0 99.2), respectively] were comparable. Similarly, at the optimum cut-off points for AGR [42.0 mmol/mol (6.0%) for the HBA1C and 5.5 mmol/l (99.0 mg/dl) for the FPG test], HBA1C and FPG sensitivity [42.3% (95% CI 31.8–53.6) and 53.2 (95% CI 43.1–63.1), respectively] and specificity [89.1% (95% CI 84.1 92.7) and 92.7% (95% CI 91.0 94.1), respectively] were comparable. Discussion HBA1C is a viable alternative diabetes screening and confirmatory test to the FPG test; however, the utility of both tests in screening for prediabetes in this outpatient population is limited.
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Affiliation(s)
- Francis Xavier Kasujja
- Department of Epidemiology and Biostatistics, School of Public Health, College of Health Sciences, Makerere University, Kampala, Uganda
- Chronic Diseases and Cancer Theme, MRC/UVRI and LSHTM Uganda Research Unit, Entebbe, Uganda
- * E-mail:
| | - Roy William Mayega
- Department of Epidemiology and Biostatistics, School of Public Health, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Meena Daivadanam
- Department of Food Studies, Nutrition and Dietetics, Uppsala University, Uppsala, Sweden
- Department of Women’s and Children’s Health, International Maternal and Child Health, Uppsala University, Uppsala, Sweden
- Department of Global Public Health, Karolinska Institutet, Solna, Sweden
| | - Elizabeth Ekirapa Kiracho
- Department of Health Policy, Planning, and Management, School of Public Health, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Ronald Kusolo
- Department of Epidemiology and Biostatistics, School of Public Health, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Fred Nuwaha
- Department of Disease Control and Environmental Health, School of Public Health, College of Health Sciences, Makerere University, Kampala, Uganda
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21
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Kitilya B, Peck R, Changalucha J, Jeremiah K, Kavishe BB, Friis H, Filteau S, Krogh-Madsen R, Brage S, Faurholt-Jepsen D, Olsen MF, PrayGod G. The association of physical activity and cardiorespiratory fitness with β-cell dysfunction, insulin resistance, and diabetes among adults in north-western Tanzania: A cross-sectional study. Front Endocrinol (Lausanne) 2022; 13:885988. [PMID: 35992098 PMCID: PMC9381963 DOI: 10.3389/fendo.2022.885988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 07/05/2022] [Indexed: 02/02/2023] Open
Abstract
Introduction Research on the associations of physical activity and cardiorespiratory fitness with β-cell dysfunction and insulin resistance among adults in Sub-Saharan Africa (SSA) is limited. We assessed the association of physical activity and cardiorespiratory fitness with β-cell function, insulin resistance and diabetes among people living with HIV (PLWH) ART-naïve and HIV-uninfected Tanzanian adults. Method In a cross-sectional study, we collected data on socio-demography, anthropometry, fat mass and fat free mass and C-reactive protein. Data on glucose and insulin collected during an oral glucose tolerance test were used to assess β-cell dysfunction (defined as insulinogenic index <0.71 (mU/L)/(mmol/L), HOMA-β index <38.3 (mU/L)/(mmol/L), and overall insulin release index <33.3 (mU/L)/(mmol/L)), oral disposition index <0.16 (mU/L)/(mg/dL)(mU/L)-1, insulin resistance (HOMA-IR index >1.9 (mU/L)/(mmol/L) and Matsuda index <7.2 (mU/L)/(mmol/L), prediabetes and diabetes which were the dependent variables. Physical activity energy expenditure (PAEE), sleeping heart rate (SHR), and maximum uptake of oxygen during exercise (VO2 max) were the independent variables and were assessed using a combined heart rate and accelerometer monitor. Logistic regressions were used to assess the associations. Results Of 391 participants, 272 were PLWH and 119 HIV-uninfected. The mean age was 39 ( ± 10.5) years and 60% (n=235) were females. Compared to lower tertile, middle tertile of PAEE was associated with lower odds of abnormal insulinogenic index (OR=0.48, 95%CI: 0.27, 0.82). A 5 kj/kg/day increment of PAEE was associated with lower odds of abnormal HOMA-IR (OR=0.91, 95%CI: 0.84, 0.98), and reduced risk of pre-diabetes (RRR=0.98, 95%CI: 0.96, 0.99) and diabetes (RRR=0.92, 95%CI: 0.88, 0.96). An increment of 5 beats per min of SHR was associated with higher risk of diabetes (RRR=1.06, 95%CI: 1.01, 1.11). An increase of 5 mLO2/kg/min of VO2 max was associated with lower risk of pre-diabetes (RRR=0.91, 95%CI: 0.86, 0.97), but not diabetes. HIV status did not modify any of these associations (interaction, p>0.05). Conclusion Among Tanzanian adults PLWH and HIV-uninfected individuals, low physical activity was associated with β-cell dysfunction, insulin resistance and diabetes. Research is needed to assess if physical activity interventions can improve β-cell function and insulin sensitivity to reduce risk of diabetes and delay progression of diabetes in SSA.
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Affiliation(s)
- Brenda Kitilya
- Mwanza Research Centre, National Institute for Medical Research, Mwanza, Tanzania
| | - Robert Peck
- Mwanza Research Centre, National Institute for Medical Research, Mwanza, Tanzania
- Department of Internal Medicine and Pediatrics, Weill Bugando School of Medicine, Mwanza, Tanzania
- Department of Global Health, Weill Cornell Medicine, New York, NY, United States
| | - John Changalucha
- Mwanza Research Centre, National Institute for Medical Research, Mwanza, Tanzania
| | - Kidola Jeremiah
- Mwanza Research Centre, National Institute for Medical Research, Mwanza, Tanzania
| | - Bazil B. Kavishe
- Mwanza Research Centre, National Institute for Medical Research, Mwanza, Tanzania
| | - Henrik Friis
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark
| | - Suzanne Filteau
- Department of Population Health, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Rikke Krogh-Madsen
- Centre for Physical Activity Research, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
- Department of Infectious Diseases, Copenhagen University Hospital, Copenhagen, Denmark
| | - Soren Brage
- Medical Research Council (MRC) Epidemiology Unit, University of Cambridge, Cambridge, United Kingdom
| | | | - Mette F. Olsen
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark
- Department of Infectious Diseases, Rigshospitalet, Copenhagen, Denmark
| | - George PrayGod
- Mwanza Research Centre, National Institute for Medical Research, Mwanza, Tanzania
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22
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Vitamin D, Vitamin D-Binding Proteins, and VDR Polymorphisms in Individuals with Hyperglycaemia. Nutrients 2022; 14:nu14153147. [PMID: 35956323 PMCID: PMC9370481 DOI: 10.3390/nu14153147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 07/27/2022] [Accepted: 07/28/2022] [Indexed: 02/01/2023] Open
Abstract
Vitamin D reportedly plays an important role in the pathogenesis of diabetes mellitus; however, this role is unclear and debated. This study investigated the association between 25(OH) vitamin D, vitamin D-binding proteins, and vitamin D receptor (VDR) polymorphisms in healthy individuals and those with prediabetes and type 2 diabetes mellitus (T2D) from South Africa. A cross-sectional study was conducted involving subjects of mixed ancestry aged ≥20 years. Males presented with higher mean 25(OH) vitamin D levels than females, while females exhibited significantly higher serum vitamin D-binding protein levels. Significant differences in mean 25(OH) vitamin D levels were observed in normo-glycaemic, prediabetes, screen-detected DM, and known DM individuals. Vitamin D receptor SNPs Fok1 and Taq1 were not associated with glycaemic status. Fok1 was not associated with 25(OH) vitamin D deficiency, while Taq1 was associated with vitamin D insufficiency. This study showed a high prevalence of vitamin D deficiency/insufficiency in this South African population, with decreased vitamin D levels observed in hyperglycaemic individuals, which was not linked to either vitamin D-binding protein or polymorphisms in Fok1 of the VDR gene. These results may be used as a platform for further research into diagnosis and treatment of hyperglycaemia.
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Kibirige D, Sekitoleko I, Balungi P, Lumu W, Nyirenda MJ. Apparent Insulin Deficiency in an Adult African Population With New-Onset Type 2 Diabetes. FRONTIERS IN CLINICAL DIABETES AND HEALTHCARE 2022; 3:944483. [PMID: 36992725 PMCID: PMC10012075 DOI: 10.3389/fcdhc.2022.944483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Accepted: 06/21/2022] [Indexed: 11/13/2022]
Abstract
Identifying patients with new-onset type 2 diabetes who have insulin deficiency can aid in timely insulin replacement therapy. In this study, we measured fasting C-peptide concentration to assess endogenous insulin secretion and determine the prevalence and characteristics of patients with insulin deficiency in adult Ugandan patients with confirmed type 2 diabetes at presentation. Methods Adult patients with new-onset diabetes were recruited from seven tertiary hospitals in Uganda. Participants who were positive for the three islet autoantibodies were excluded. Fasting C-peptide concentrations were measured in 494 adult patients, and insulin deficiency was defined as a fasting C-peptide concentration <0.76 ng/ml. The socio-demographic, clinical, and metabolic characteristics of participants with and without insulin deficiency were compared. Multivariate analysis was performed to identify independent predictors of insulin deficiency. Results The median (IQR) age, glycated haemoglobin (HbA1c), and fasting C-peptide of the participants was 48 (39-58) years,10.4 (7.7-12.5) % or 90 (61-113) mmol/mol, and 1.4 (0.8-2.1) ng/ml, respectively. Insulin deficiency was present in 108 (21.9%) participants. Participants with confirmed insulin deficiency were more likely to be male (53.7% vs 40.4%, p=0.01), and had a lower body mass index or BMI [p<0.001], were less likely to be hypertensive [p=0.03], had reduced levels of triglycerides, uric acid, and leptin concentrations [p<0.001]), but higher HbA1c concentration (p=0.004). On multivariate analysis, BMI (AOR 0.89, 95% CI 0.85-0.94, p<0.001), non-HDLC (AOR 0.77, 95% CI 0.61-0.97, p=0.026), and HbA1c concentrations (AOR 1.08, 95% CI 1.00-1.17, p=0.049) were independent predictors of insulin deficiency. Conclusion Insulin deficiency was prevalent in this population, occurring in about 1 in every 5 patients. Participants with insulin deficiency were more likely to have high HbA1c and fewer markers of adiposity and metabolic syndrome. These features should increase suspicion of insulin deficiency and guide targeted testing and insulin replacement therapy.
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Affiliation(s)
- Davis Kibirige
- Non-Communicable Diseases Program, Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine Uganda Research Unit, Entebbe, Uganda
- Department of Non-Communicable Diseases Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Isaac Sekitoleko
- Non-Communicable Diseases Program, Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine Uganda Research Unit, Entebbe, Uganda
| | - Priscilla Balungi
- Non-Communicable Diseases Program, Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine Uganda Research Unit, Entebbe, Uganda
- Clinical Diagnostics Laboratory Services, Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine Uganda Research Unit, Entebbe, Uganda
| | - William Lumu
- Department of Medicine, Mengo Hospital, Kampala, Uganda
| | - Moffat J. Nyirenda
- Non-Communicable Diseases Program, Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine Uganda Research Unit, Entebbe, Uganda
- Department of Non-Communicable Diseases Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, United Kingdom
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Mensah D, Ogungbe O, Turkson-Ocran RAN, Onuoha C, Byiringiro S, Nmezi NA, Mannoh I, Wecker E, Madu EN, Commodore-Mensah Y. The Cardiometabolic Health of African Immigrants in High-Income Countries: A Systematic Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:7959. [PMID: 35805618 PMCID: PMC9265760 DOI: 10.3390/ijerph19137959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 06/23/2022] [Accepted: 06/23/2022] [Indexed: 12/04/2022]
Abstract
In recent decades, the number of African immigrants in high-income countries (HICs) has increased significantly. However, the cardiometabolic health of this population remains poorly examined. Thus, we conducted a systematic review to examine the prevalence of cardiometabolic risk factors among sub-Saharan African immigrants residing in HICs. Studies were identified through searches in electronic databases including PubMed, Embase, CINAHL, Cochrane, Scopus, and Web of Science up to July 2021. Data on the prevalence of cardiometabolic risk factors were extracted and synthesized in a narrative format, and a meta-analysis of pooled proportions was also conducted. Of 8655 unique records, 35 articles that reported data on the specific African countries of origin of African immigrants were included in the review. We observed heterogeneity in the burden of cardiometabolic risk factors by African country of origin and HIC. The most prevalent risk factors were hypertension (27%, range: 6-55%), overweight/obesity (59%, range: 13-91%), and dyslipidemia (29%, range: 11-77.2%). The pooled prevalence of diabetes was 11% (range: 5-17%), and 7% (range: 0.7-14.8%) for smoking. Few studies examined kidney disease, hyperlipidemia, and diagnosed cardiometabolic disease. Policy changes and effective interventions are needed to improve the cardiometabolic health of African immigrants, improve care access and utilization, and advance health equity.
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Affiliation(s)
- Danielle Mensah
- College of Medicine, Drexel University, Philadelphia, PA 19129, USA;
| | - Oluwabunmi Ogungbe
- School of Nursing, Johns Hopkins University, Baltimore, MD 21205, USA; (O.O.); (S.B.)
| | | | - Chioma Onuoha
- School of Medicine, University of California, San Francisco, CA 94143, USA;
| | - Samuel Byiringiro
- School of Nursing, Johns Hopkins University, Baltimore, MD 21205, USA; (O.O.); (S.B.)
| | - Nwakaego A. Nmezi
- Department of Physical Medicine and Rehabilitation, School of Medicine, Johns Hopkins University, Baltimore, MD 21201, USA;
| | - Ivy Mannoh
- School of Medicine, Johns Hopkins University, Baltimore, MD 21201, USA; (I.M.); (E.W.)
| | - Elisheva Wecker
- School of Medicine, Johns Hopkins University, Baltimore, MD 21201, USA; (I.M.); (E.W.)
| | - Ednah N. Madu
- College of Nursing and Public Health, Adelphi University, Garden City, NY 11530, USA;
| | - Yvonne Commodore-Mensah
- School of Nursing, Johns Hopkins University, Baltimore, MD 21205, USA; (O.O.); (S.B.)
- Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA
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25
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Kengne AP, Matsha TE, Sacks DB, Zemlin AE, Erasmus RT, Sumner AE. Combining HbA 1c and glycated albumin improves detection of dysglycaemia in mixed-ancestry South Africans. EClinicalMedicine 2022; 48:101443. [PMID: 35783481 PMCID: PMC9249545 DOI: 10.1016/j.eclinm.2022.101443] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 04/18/2022] [Accepted: 04/21/2022] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Combining HbA1c with glycated albumin (GA) may improve detection of dysglycaemia. As BMI correlates positively with HbA1c and negatively with GA, HbA1c may be more effective in obese and GA in nonobese individuals. METHODS To relate these findings to Africans, we assessed in 1274 South Africans living in CapeTown (male 26%; age 48±16y; BMI 28.7 kg/m2 (range 15.6-73.8); obesity 39.9% and no prior diabetes history) the: (1) correlation of BMI with HbA1c and GA, (2) ability of HbA1c and GA separately and jointly, to detect OGTT-diagnosed dysglycaemia (diabetes plus prediabetes). Data collection took place between 2014 and 2016 in the City of Cape Town. Dysglycaemia was diagnosed by glucose criteria for the OGTT. Youden index was used to optimize diagnostic thresholds for HbA1c and GA. FINDINGS Normal glucose tolerance, prediabetes and diabetes occurred in 76%, 17% and 7%, respectively. BMI positively correlated with HbA1c [r = 0·34 [95%CI: 0·29,0·39)] and negatively with GA [-0·08 (0·13,0·03)]. For HbA1c the optimal threshold by Youden-index for dysglycaemia diagnosis was: 6·0% (95%CI: 5·8,6·2) and for GA: 13·44% (12·72,14·71). In the nonobese, obese and total cohort, HbA1c-alone detected: 51% (42-60), 72% (65,78), 63% (57,68), respectively; GA-alone detected 55% (52% (46,63), 52% (44, 59) and 53% (47,53), respectively; whereas: HbA1c+GA detected: 69% (60,76), 82% (75,87) and 76% (71, 81). Therefore, for the total cohort detection of dysglycaemia HbA1c-alone vs HbA1c+GA detected 63% (57,68) vs 76% (71,81). INTERPRETATION The opposite correlations of HbA1c and GA with BMI have now been demonstrated in an African-based population. Improving detection of dysglycaemia by combining HbA1c and GA has important implications for diabetes risk screening. FUNDING AES is supported by the intramural programs of the National Institute of Diabetes and Digestive and Kidney Diseases and the National Institute of Minority Health and Health Disparities of the National Institutes of Health (NIH, Bethesda, Maryland, USA). DBS is supported by the intramural program of the Clinical Center of NIH. The South African Medical Research Council (SAMRC) funded the VMH study with funds from the National Treasury under its Economic Competitiveness and Support Package (MRC-RFA-UFSP-01-2013/VMH Study).
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Affiliation(s)
- Andre Pascal Kengne
- Non-Communicable Diseases Research Unit, South African Medical Research Council, PO Box 19070, Tygerberg, Cape Town 7505, South Africa
- Department of Medicine, University of Cape Town, Cape Town, South Africa
- Corresponding author at: Non-Communicable Diseases Research Unit, South African Medical Research Council, PO Box 19070, Tygerberg, Cape Town 7505, South Africa.
| | - Tandi E. Matsha
- SAMRC/CPUT/Cardiometabolic Health Research Unit, Faculty of Health and Wellness Sciences, Cape Peninsula University of Technology, Cape Town, South Africa
| | - David B. Sacks
- National Institutes of Health Clinical Center, Bethesda, MD, USA
| | - Annalise E. Zemlin
- Division of Chemical Pathology, Faculty of Medicine and Health Sciences, National Health Laboratory Service (NHLS), University of Stellenbosch, Cape Town, South Africa
| | - Rajiv T Erasmus
- Division of Chemical Pathology, Faculty of Medicine and Health Sciences, National Health Laboratory Service (NHLS), University of Stellenbosch, Cape Town, South Africa
| | - Anne E. Sumner
- Section on Ethnicity and Health, Diabetes, Endocrinology, and Obesity Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institute of Health, Bethesda, MD, USA
- National Institute on Minority Health and Health Disparities, National Institutes of Health, Bethesda, MD, USA
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Mathur R, Hull SA, Hodgson S, Finer S. Characterisation of type 2 diabetes subgroups and their association with ethnicity and clinical outcomes: a UK real-world data study using the East London Database. Br J Gen Pract 2022; 72:e421-e429. [PMID: 35577589 PMCID: PMC9119813 DOI: 10.3399/bjgp.2021.0508] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 02/06/2022] [Indexed: 10/31/2022] Open
Abstract
BACKGROUND Subgroups of type 2 diabetes (T2DM) have been well characterised in experimental studies. It is unclear, however, whether the same approaches can be used to characterise T2DM subgroups in UK primary care populations and their associations with clinical outcomes. AIM To derive T2DM subgroups using primary care data from a multi-ethnic population, evaluate associations with glycaemic control, treatment initiation, and vascular outcomes, and to understand how these vary by ethnicity. DESIGN AND SETTING An observational cohort study in the East London Primary Care Database from 2008 to 2018. METHOD Latent-class analysis using age, sex, glycated haemoglobin, and body mass index at diagnosis was used to derive T2DM subgroups in white, South Asian, and black groups. Time to treatment initiation and vascular outcomes were estimated using multivariable Cox-proportional hazards regression. RESULTS In total, 31 931 adults with T2DM were included: 47% South Asian (n = 14 884), 26% white (n = 8154), 20% black (n = 6423). Two previously described subgroups were replicated, 'mild age-related diabetes' (MARD) and 'mild obesity-related diabetes' (MOD), and a third was characterised 'severe hyperglycaemic diabetes' (SHD). Compared with MARD, SHD had the poorest long-term glycaemic control, fastest initiation of antidiabetic treatment (hazard ratio [HR] 2.02, 95% confidence interval [CI] = 1.76 to 2.32), and highest risk of microvascular complications (HR 1.38, 95% CI = 1.28 to 1.49). MOD had the highest risk of macrovascular complications (HR 1.50, 95% CI = 1.23 to 1.82). Subgroup differences in treatment initiation were most pronounced for the white group, and vascular complications for the black group. CONCLUSION Clinically useful T2DM subgroups, identified at diagnosis, can be generated in routine real-world multi-ethnic populations, and may offer a pragmatic means to develop stratified primary care pathways and improve healthcare resource allocation.
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Affiliation(s)
- Rohini Mathur
- Institute for Population Health Sciences, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, and Department of Non-Communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, London
| | - Sally A Hull
- Institute for Population Health Sciences, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London
| | - Sam Hodgson
- Primary Care Research Centre, University of Southampton, Southampton, UK
| | - Sarah Finer
- Institute for Population Health Sciences, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London
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Kibirige D, Sekitoleko I, Balungi P, Kyosiimire-Lugemwa J, Lumu W, Jones AG, Hattersley AT, Smeeth L, Nyirenda MJ. Islet autoantibody positivity in an adult population with recently diagnosed diabetes in Uganda. PLoS One 2022; 17:e0268783. [PMID: 35604955 PMCID: PMC9126391 DOI: 10.1371/journal.pone.0268783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 05/07/2022] [Indexed: 12/02/2022] Open
Abstract
Aims This study aimed to investigate the frequency of islet autoantibody positivity in adult patients with recently diagnosed diabetes in Uganda and its associated characteristics. Methods Autoantibodies to glutamic acid decarboxylase-65 (GADA), zinc transporter 8 (ZnT8-A), and tyrosine phosphatase (IA-2A) were measured in 534 adult patients with recently diagnosed diabetes. Islet autoantibody positivity was defined based on diagnostic thresholds derived from a local adult population without diabetes. The socio-demographic, clinical, and metabolic characteristics of islet autoantibody-positive and negative participants were then compared. The differences in these characteristics were analysed using the x2 test for categorical data and the Kruskal Wallis test for continuous data. Multivariate analysis was performed to identify predictors of islet autoantibody positivity. Results Thirty four (6.4%) participants were positive for ≥1 islet autoantibody. GADA, IA-2A and ZnT8-A positivity was detected in 17 (3.2%), 10 (1.9%), and 7 (1.3%) participants, respectively. Compared with those negative for islet autoantibodies, participants positive for islet autoantibodies were more likely to live in a rural area (n = 18, 52.9% Vs n = 127, 25.5%, p = 0.005), to be initiated on insulin therapy (n = 19, 55.9% Vs n = 134, 26.8%, p<0.001), to have a lower median waist circumference (90 [80–99] cm Vs 96 [87–104.8], p = 0.04), waist circumference: height ratio (0.55 [0.50–0.63] vs 0.59 [0.53–0.65], p = 0.03), and fasting C-peptide concentration (0.9 [0.6–1.8] Vs 1.4 [0.8–2.1] ng/ml, p = 0.01). On multivariate analysis, living in a rural area (odds ratio or OR 3.62, 95%CI 1.68–7.80, p = 0.001) and being initiated on insulin therapy (OR 3.61, 95% CI 1.67–7.83, p = 0.001) were associated with islet autoantibody positivity. Conclusion The prevalence of islet autoantibody positivity was relatively low, suggesting that pancreatic autoimmunity is a rare cause of new-onset diabetes in this adult Ugandan population. Living in a rural area and being initiated on insulin therapy were independently associated with islet autoantibody positivity in this study population.
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Affiliation(s)
- Davis Kibirige
- Non-Communicable Diseases Program, Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine Uganda Research Unit, Entebbe, Uganda
- Department of Non-Communicable Diseases Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, United Kingdom
- * E-mail:
| | - Isaac Sekitoleko
- Non-Communicable Diseases Program, Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine Uganda Research Unit, Entebbe, Uganda
| | - Priscilla Balungi
- Non-Communicable Diseases Program, Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine Uganda Research Unit, Entebbe, Uganda
- Clinical Diagnostics Laboratory Services, Medical Research Council/Uganda Virus Research Institute, and London School of Hygiene and Tropical Medicine Uganda Research Unit, Entebbe, Uganda
| | - Jacqueline Kyosiimire-Lugemwa
- Clinical Diagnostics Laboratory Services, Medical Research Council/Uganda Virus Research Institute, and London School of Hygiene and Tropical Medicine Uganda Research Unit, Entebbe, Uganda
| | - William Lumu
- Department of Medicine, Mengo Hospital, Kampala, Uganda
| | - Angus G. Jones
- Institute of Biomedical and Clinical Science, University of Exeter Medical School, Barrack Road, Exeter, United Kingdom
- Department of Diabetes and Endocrinology, Royal Devon and Exeter NHS Foundation Trust, Exeter, United Kingdom
| | - Andrew T. Hattersley
- Institute of Biomedical and Clinical Science, University of Exeter Medical School, Barrack Road, Exeter, United Kingdom
- Department of Diabetes and Endocrinology, Royal Devon and Exeter NHS Foundation Trust, Exeter, United Kingdom
| | - Liam Smeeth
- Department of Non-Communicable Diseases Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Moffat J. Nyirenda
- Non-Communicable Diseases Program, Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine Uganda Research Unit, Entebbe, Uganda
- Department of Non-Communicable Diseases Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, United Kingdom
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Ferdous F, Filteau S, Schwartz NB, Gumede-Moyo S, Cox SE. Association of postnatal severe acute malnutrition with pancreatic exocrine and endocrine function in children and adults: a systematic review. Br J Nutr 2022; 129:1-34. [PMID: 35504844 PMCID: PMC9899575 DOI: 10.1017/s0007114522001404] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 04/05/2022] [Accepted: 04/13/2022] [Indexed: 12/22/2022]
Abstract
Severe acute malnutrition may lead both concurrently and subsequently to malabsorption and impaired glucose metabolism from pancreatic dysfunction. We conducted a systematic review to investigate the associations of current and prior postnatal wasting malnutrition with pancreatic endocrine and exocrine functions in humans. We searched PubMed, Google Scholar, Web of Science and reference lists of retrieved articles, limited to articles in English published before 1 February 2022. We included sixty-eight articles, mostly cross-sectional or cohort studies from twenty-nine countries including 592 530 participants, of which 325 998 were from a single study. Many were small clinical studies from decades ago and rated poor quality. Exocrine pancreas function, indicated by duodenal fluid or serum enzymes, or faecal elastase, was generally impaired in malnutrition. Insulin production was usually low in malnourished children and adults. Glucose disappearance during oral and intravenous glucose tolerance tests was variable. Upon treatment of malnutrition, most abnormalities improved but frequently not to control levels. Famine survivors studied decades later showed ongoing impaired glucose tolerance with some evidence of sex differences. The similar findings from anorexia nervosa, famine survivors and poverty- or infection-associated malnutrition in low- and middle-income countries (LMIC) lend credence to results being due to malnutrition itself. Research using large, well-documented cohorts and considering sexes separately, is needed to improve prevention and treatment of exocrine and endocrine pancreas abnormalities in LMIC with a high burden of malnutrition and diabetes.
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Affiliation(s)
- Farzana Ferdous
- School of Tropical Medicine and Global Health, Nagasaki University, Sakamoto Campus, Nagasaki, Japan
- Nutrition and Clinical Services Division, International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh
| | - Suzanne Filteau
- Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, UK
| | - Nanna Buhl Schwartz
- Dept of Nutrition, Sports and Exercise, University of Copenhagen, Frederiksberg, Denmark
| | - Sehlulekile Gumede-Moyo
- Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, UK
| | - Sharon Elizabeth Cox
- School of Tropical Medicine and Global Health, Nagasaki University, Sakamoto Campus, Nagasaki, Japan
- Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, UK
- Institute of Tropical Medicine, Nagasaki University, Sakamoto Campus, Nagasaki, Japan
- UK Health Security Agency, 61 Colindale Avenue, London, UK
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Mukonda E, Cleary S, Lesosky M. A review of simulation models for the long-term management of type 2 diabetes in low-and-middle income countries. BMC Health Serv Res 2021; 21:1313. [PMID: 34872555 PMCID: PMC8650231 DOI: 10.1186/s12913-021-07324-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 11/18/2021] [Indexed: 12/02/2022] Open
Abstract
INTRODUCTION The burden of type 2 diabetes is steadily increasing in low-and-middle-income countries, thereby posing a major threat from both a treatment, and funding standpoint. Although simulation modelling is generally relied upon for evaluating long-term costs and consequences associated with diabetes interventions, no recent article has reviewed the characteristics and capabilities of available models used in low-and-middle-income countries. We review the use of computer simulation modelling for the management of type 2 diabetes in low-and-middle-income countries. METHODS A search for studies reporting computer simulation models of the natural history of individuals with type 2 diabetes and/or decision models to evaluate the impact of treatment strategies on these populations was conducted in PubMed. Data were extracted following Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines and assessed using modelling checklists. Publications before the year 2000, from high-income countries, studies involving animals and analyses that did not use mathematical simulations were excluded. The full text of eligible articles was sourced and information about the intervention and population being modelled, type of modelling approach and the model structure was extracted. RESULTS Of the 79 articles suitable for full text review, 44 studies met the inclusion criteria. All were cost-effectiveness/utility studies with the majority being from the East Asia and Pacific region (n = 29). Of the included studies, 34 (77.3%) evaluated the cost-effectiveness of pharmacological interventions and approximately 75% of all included studies used HbA1c as one of the treatment effects of the intervention. 32 (73%) of the publications were microsimulation models, and 29 (66%) were state-transition models. Most of the studies utilised annual cycles (n = 29, 71%), and accounted for costs and outcomes over 20 years or more (n = 38, 86.4%). CONCLUSIONS While the use of simulation modelling in the management of type 2 diabetes has been steadily increasing in low-and-middle-income countries, there is an urgent need to invest in evaluating therapeutic and policy interventions related to type 2 diabetes in low-and-middle-income countries through simulation modelling, especially with local research data. Moreover, it is important to improve transparency and credibility in the reporting of input data underlying model-based economic analyses, and studies.
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Affiliation(s)
- Elton Mukonda
- Division of Epidemiology and Biostatistics, School of Public Health and Family Medicine, Faculty of Health Sciences, University of Cape Town, Observatory, Cape Town, 7925, South Africa.
| | - Susan Cleary
- Health Economics Unit, School of Public Health & Family Medicine, University of Cape Town, Cape Town, South Africa
| | - Maia Lesosky
- Division of Epidemiology and Biostatistics, School of Public Health and Family Medicine, Faculty of Health Sciences, University of Cape Town, Observatory, Cape Town, 7925, South Africa
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Association between Transcription Factor 7-like-2 Polymorphisms and Type 2 Diabetes Mellitus in a Ghanaian Population. SCI 2021. [DOI: 10.3390/sci3040040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Type 2 diabetes mellitus (T2DM) has been strongly associated with single nucleotide polymorphisms (SNPs) in the TCF7L2 gene. This study investigated the association between rs12255372, rs7903146 in the TCF7L2 gene and T2DM in a Ghanaian population. A case-control study design was used for this study. A total of 106 T2DM patients and 110 control participants were selected. Basic data collected included body mass index, blood pressure and socio-demographics. Fasting blood samples were collected and processed for: serum lipid analysis, plasma glucose estimation and plasma HbA1c estimation. Parts of the whole blood samples were used for DNA extraction using a modified salting-out method. Common and allele-specific primers were designed for genotyping using the Modified Tetra-Primer Amplification assay. Associations were evaluated using logistic regression models. The rs7903146 risk variant was significantly associated with 2.16 vs. 4.06 increased odds for T2DM in patients <60 years vs. ≥60 years. Both rs7903146 and rs12255372 were significantly associated with increased odds of T2DM in women, overweight/obese, T2DM negative family history (T2DM-NFH) and low-HDL-C. In a multivariate model, rs7903146 but not rs12255372 was significantly associated with 2.18, 5.01 and 2.25 increased odds of T2DM, under the codominant, recessive and additive model, respectively (p < 0.05). The association between rs7903146 and rs12255372 with T2DM is more highly associated in a subgroup—women and those with T2DM-NFH, yet who have cardiometabolic risk.
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Temu TM, Macharia P, Mtui J, Mwangi M, Ngungi PW, Wanjalla C, Bloomfield GS, Farquhar C, Nyanjau L, Gathecha GK, Kibachio J. Obesity and risk for hypertension and diabetes among Kenyan adults: Results from a national survey. Medicine (Baltimore) 2021; 100:e27484. [PMID: 34622879 PMCID: PMC8500651 DOI: 10.1097/md.0000000000027484] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 09/21/2021] [Accepted: 09/23/2021] [Indexed: 01/05/2023] Open
Abstract
ABSTRACT Despite the anticipated growth in the global burden of obesity especially in low-income countries, limited data exist on the contribution of obesity to cardiometabolic diseases in Africa.We examined population-based samples of Kenyan adults who participated in the 2015 national chronic disease risk factor surveillance survey. Weight and height were measured, and body mass index (BMI) was calculated and used as a measure for general obesity. Waist circumference (WC), a clinical measure of central obesity was also measured. Logistic regression was used to assess the association between obesity with hypertension, diabetes, and dyslipidemia risk.Of the 4276 participants, the median (IQR) age was 36 (27-47) years, 41% were men. One-third (37%) of the participants were centrally obese, whereas 10% were generally obese. The odds for overweight and general obesity were highest among females, adults >40 years, and those in the highest wealth quartile. Central and general obesity, assessed by WC and BMI, were associated with hypertension and dyslipidemia but not diabetes for both sexes. Compared with adults of normal weight, individuals with a BMI of ≥30 kg/m2 had an odds ratio of 2.39 (95% confidence interval [CI], 1.82-3.12) for hypertension and 2.24 (95% CI, 1.70-2.96) for dyslipidemia.Obesity prevalence is high in Kenya and is associated with hypertension and dyslipidemia but not diabetes. Our findings indicate an urgent need to develop public health interventions to address obesity and prevent the development of comorbid conditions.
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Affiliation(s)
- Tecla M. Temu
- Department of Global Health, University of Washington, Seattle, WA
- Institute of Tropical Diseases, University of Nairobi, Nairobi, Kenya
| | | | - James Mtui
- Saint George University, University Center, Grenada, West Indies
| | | | | | | | - Gerald S. Bloomfield
- Duke Global Health Institute, Duke Clinical Research Institute, Department of Medicine, Duke University, Durham, NC
| | - Carey Farquhar
- Department of Global Health, University of Washington, Seattle, WA
- Department of Medicine and Epidemiology, University of Washington, Seattle, WA
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Taderegew MM, Emeria MS, Zegeye B. Association of glycemic control and anthropometric measurement among type 2 diabetes mellitus: a cross-sectional study. Diabetol Int 2021; 12:356-363. [PMID: 34567918 DOI: 10.1007/s13340-021-00490-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 01/12/2021] [Indexed: 11/24/2022]
Abstract
Introduction Maintaining good glycemic control is the main therapeutic target for diabetes mellitus (DM) patients. Nevertheless, due to complex factors, the majority of patients worldwide persist poorly controlled. Hence the study was conducted to determine the association of anthropometric measurement and other factors with glycemic control among type 2 DM patients. Methods An institutional-based cross-sectional study was conducted among 366 type 2 DM patients from October-1 to November 30/2019. Data were collected by a pre-tested structured questionnaire and data abstraction format. The collected data were edited in Epi-data-4.4.1.0 and exported to SPSS-25 for analysis. The degree of association was assessed using logistic regression analysis and expressed in terms of p value and odds ratio with a 95%CI. p value < 0.05 was considered statistically significant. Results Of the total 366 participants, (66.1%) had poor glycemic control. Increased waist circumference (AOR 2.37, 95% CI 1.28-4.40 for overweight and AOR 3.31, 95% CI 1.28-8.58 for obesity), long duration of DM (AOR 2.12, 95% CI 1.14-3.95 for 5-10 years and AOR 5.67, 95% CI 1.76-11.30 for > 10 years), occupation (AOR 3.74, 95% CI 1.94-7.23 for government employee and AOR 4.90, 95% CI 2.19-10.94 for private employee), and family history of DM (AOR 1.93, 95% CI 1.08-3.43), were significantly associated with poor glycemic control. Conclusion Nearly two-thirds of study participants had poor glycemic control. Increased waist circumference, long duration of DM, occupational status, and family history of DM were independently associated with poor glycemic control. Therefore, type 2 DM patients with these identified factors should be strictly monitored to maintain good glycemic control.
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Affiliation(s)
- Mitku Mammo Taderegew
- Department of Biomedical Sciences, School of Medicine, College of Medicine and Health Sciences, Wolkite University, Wolkite, Ethiopia
| | - Mamo Solomon Emeria
- Department of Nursing, College of Medicine and Health Sciences, Wolkite University, Wolkite, Ethiopia
| | - Betregiorgis Zegeye
- HaSET Maternal and Child Health Research Program, Shewa Robit Field Office, Shewa Robit, Ethiopia
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Alaofè H, Yeo S, Okechukwu A, Magrath P, Amoussa Hounkpatin W, Ehiri J, Rosales C. Cultural Considerations for the Adaptation of a Diabetes Self-Management Education Program in Cotonou, Benin: Lessons Learned from a Qualitative Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18168376. [PMID: 34444125 PMCID: PMC8393923 DOI: 10.3390/ijerph18168376] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 08/04/2021] [Accepted: 08/04/2021] [Indexed: 12/02/2022]
Abstract
Background: Type 2 diabetes (T2D) poses a disproportionate burden on Benin, West Africa. However, no diabetes intervention has yet been developed for Benin’s contexts. This study aimed to explore specific cultural beliefs, attitudes, behaviors, and environmental factors to help adapt a diabetes self-management program to patients with T2D from Cotonou, in southern Benin. Methods: Qualitative data were collected through focus group discussions (FDGs) involving 32 patients with T2D, 16 academic partners, and 12 community partners. The FDGs were audio-recorded, transcribed verbatim from French to English, and then analyzed thematically with MAXQDA 2020. Results: Healthy food was challenging to obtain due to costs, seasonality, and distance from markets. Other issues discussed were fruits and vegetables as commodities for the poor, perceptions and stigmas surrounding the disease, and the financial burden of medical equipment and treatment. Information about local food selections and recipes as well as social support, particularly for physical activity, were identified, among other needs. When adapting the curriculum, gender dynamics and spirituality were suggested. Conclusions: The study demonstrates the need for culturally sensitive interventions and a motivation-based approach to health (spiritual and emotional support). It also lays the groundwork for addressing T2D contextually in Benin and similar sub-Saharan African countries.
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Affiliation(s)
- Halimatou Alaofè
- Department of Health Promotion Sciences, Mel and Enid Zuckerman College of Public Health, The University of Arizona, Tucson, AZ 85724, USA; (S.Y.); (A.O.); (P.M.); (J.E.)
- Correspondence: ; Tel.: +1-(520)-626-5614
| | - Sarah Yeo
- Department of Health Promotion Sciences, Mel and Enid Zuckerman College of Public Health, The University of Arizona, Tucson, AZ 85724, USA; (S.Y.); (A.O.); (P.M.); (J.E.)
| | - Abidemi Okechukwu
- Department of Health Promotion Sciences, Mel and Enid Zuckerman College of Public Health, The University of Arizona, Tucson, AZ 85724, USA; (S.Y.); (A.O.); (P.M.); (J.E.)
| | - Priscilla Magrath
- Department of Health Promotion Sciences, Mel and Enid Zuckerman College of Public Health, The University of Arizona, Tucson, AZ 85724, USA; (S.Y.); (A.O.); (P.M.); (J.E.)
| | - Waliou Amoussa Hounkpatin
- School of Nutrition and Food Science and Technology, Faculty of Agricultural Sciences, University of Abomey-Calavi (FSA-UAC), Campus d’Abomey-Calavi, Calavi 01 BP 526, Benin;
| | - John Ehiri
- Department of Health Promotion Sciences, Mel and Enid Zuckerman College of Public Health, The University of Arizona, Tucson, AZ 85724, USA; (S.Y.); (A.O.); (P.M.); (J.E.)
| | - Cecilia Rosales
- Division of Public Health Practice & Translational Research, University of Arizona, Phoenix Plaza Building, 550 E. Van Buren Street, Phoenix, AZ 85006, USA;
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Onwuchuluba EE, Oyetunde OO, Soremekun RO. Medication Adherence in Type 2 Diabetes Mellitus: A Qualitative Exploration of Barriers and Facilitators From Socioecological Perspectives. J Patient Exp 2021; 8:23743735211034338. [PMID: 34368436 PMCID: PMC8317237 DOI: 10.1177/23743735211034338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Adherence to antidiabetic medications (ADMs) remains a serious challenge among type 2 diabetes mellitus (T2DM) patients. Factors affecting medication adherence are not fully understood in Nigeria. This qualitative study explored patients' views on barriers and facilitators of medication adherence. Data collection was through face-to-face, semistructured, in-depth interviews conducted on 25 purposively sampled patients attending a public tertiary hospital. The interviews were audio recorded, transcribed verbatim, and analyzed using thematic analysis based on socioecological framework. NVIVO version 10 identified more codes. Most commonly identified barriers were organizational (clinic structure), personal (perception of T2DM as a dangerous illness), interpersonal (lack of spousal support), and community (concerns about taking ADMs in social gatherings). It was observed that female patients received more spousal support than the males. The facilitators of adherence include perceiving medication-taking a routine, the need to live longer, having savings for ADMs, purchasing medications to last until the next clinic visit. This study identified barriers and facilitators unique to Nigerian T2DM patients. Interventions anchored on these factors would improve medication adherence.
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Affiliation(s)
- EE Onwuchuluba
- Department of Clinical Pharmacy & Biopharmacy, Faculty of Pharmacy, University of Lagos, Idi-araba, Lagos, Nigeria
| | - OO Oyetunde
- Department of Clinical Pharmacy & Biopharmacy, Faculty of Pharmacy, University of Lagos, Idi-araba, Lagos, Nigeria
| | - RO Soremekun
- Department of Clinical Pharmacy & Biopharmacy, Faculty of Pharmacy, University of Lagos, Idi-araba, Lagos, Nigeria
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Manyara AM. Optimal cut-offs of five anthropometric indices and their predictive ability of type 2 diabetes in a nationally representative Kenyan study. AIMS Public Health 2021; 8:507-518. [PMID: 34395701 PMCID: PMC8334637 DOI: 10.3934/publichealth.2021041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 07/06/2021] [Indexed: 11/18/2022] Open
Abstract
Background Type 2 diabetes (T2D) is one of the top non-communicable diseases in Kenya and prevention strategies are urgently needed. Intervening to reduce obesity is the most common prevention strategy. However, black populations develop T2D at lower obesity levels and it is unclear which anthropometric cut-offs could provide the best predictive ability for T2D risk. This study, therefore, aimed to determine the optimal anthropometric cut-offs and their predictive ability of T2D in Kenya. Methods The study included 2159 participants (59% women) aged 35-70 years from the Kenya STEPwise survey conducted in 2014. Five anthropometric indices were used-body mass index (BMI), waist circumference (WC), waist to hip ratio (WHR), waist to height ratio (WHtR) and waist divided by height0.5(WHt.5R). Diabetes was defined as a fasting blood glucose of ≥7.0 mmol/l or a previous diagnosis by a health worker. Optimal anthropometric cut-offs and their receiver operating characteristics, such as the area under the curve (AUC), were computed. Results Overall, the optimal cut-off for BMI, WC, WHR, WHtR and WHt.5R were 24.8 kg.m-2, 90 cm, 0.88, 0.54 and 6.9. On disaggregation by sex, the optimal cut-off for BMI, WC, WHR WHtR and WHt.5R was 27.1 kg.m-2, 87 cm, 0.85, 0.55 and 6.9 in women, and 24.8 kg.m-2, 91 cm, 0.88, 0.54 and 6.9 in men. Overall, WC (AUC 0.71 (95% confidence interval 0.65, 0.76)) WHtR (AUC 0.71 (0.66, 0.76)) and WHt.5R (AUC 0.70 (0.65,0.75)) had a better predictive ability for T2D than BMI (AUC 0.68 (0.62, 0.73)). Conclusions WC, WHtR and WHt.5R were better predictors of T2D than BMI and should be used for risk stratification in Kenya. A WC cut-off of 87cm in women and 91cm in men, a WHtR cut-off of 0.54 or a WHt.5R of 6.9 in both men and women should be used to identify individuals at an elevated risk of T2D.
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Affiliation(s)
- Anthony Muchai Manyara
- Social and Political Sciences, Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
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Manyara AM, Mwaniki E, Gray CM, Gill JMR. Comparison of risk factors between people with type 2 diabetes and matched controls in Nairobi, Kenya. Trop Med Int Health 2021; 26:1075-1087. [PMID: 34051023 DOI: 10.1111/tmi.13629] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
OBJECTIVE To identify risk factors associated with type 2 diabetes (T2D) in Nairobi, Kenya. METHODS A case-control study comparing 70 (53% women) recently diagnosed T2D cases with age-, sex- and socioeconomic status-matched normoglycemic controls (1:1). Objectively measured data were obtained on anthropometrics, handgrip strength and physical activity (by accelerometer). Self-reported data were collected on demographic characteristics and lifestyle factors. Logistic regression models, adjusted for covariates, were used to analyse the data. RESULTS Each standard deviation (SD) increase in height was associated with lower odds for T2D (adjusted odds ratio (AOR) = 0.34 (95% confidence intervals [CIs] 0.17, 0.66), P = 0.0031). Fat-free mass was inversely associated with T2D (AOR = 0.42 (95% CI 0.24, 0.75), P = 0.0032, per SD increase). Grip strength was associated with a lower risk of T2D (AOR = 0.20 (95% CI 0.08, 0.45), P < 0.001, per SD increase). BMI was not associated with T2D, but higher waist-to-hip ratio was associated higher odds of T2D (AOR = 2.28 (95% CI 1.38, 3.79), P = 0.0014, per SD increase). Physical activity was not associated with T2D. Cases reported higher intakes of fruits and vegetables and a lower intake of sugar than controls. CONCLUSIONS Central obesity, rather than BMI, may have more utility for T2D risk stratification in Kenya, and interventions that increase muscle mass and strength, as well as support weight loss, may be useful for T2D prevention in this and other SSA populations. However, more evidence is needed to determine whether low muscle mass, strength and height are causally related to T2D risk and/or are indicators of adverse early-life environment.
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Affiliation(s)
- Anthony Muchai Manyara
- School of Social and Political Sciences, Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK.,Department of Health Systems Management and Public Health, Technical University of Kenya, Nairobi, Kenya
| | - Elizabeth Mwaniki
- Department of Health Systems Management and Public Health, Technical University of Kenya, Nairobi, Kenya
| | - Cindy M Gray
- School of Social and Political Sciences, Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Jason M R Gill
- British Heart Foundation Glasgow Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
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Petry N, Rohner F, Phall MC, Jallow B, Ceesay AA, Sawo Y, Darboe MK, Barrow S, Sarr A, Ceesay PO, Fofana MN, Prentice AM, Wegmüller R, Wirth JP. Prevalence and co-existence of cardiometabolic risk factors and associations with nutrition-related and socioeconomic indicators in a national sample of Gambian women. Sci Rep 2021; 11:12057. [PMID: 34103653 PMCID: PMC8187481 DOI: 10.1038/s41598-021-91592-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 05/11/2021] [Indexed: 01/25/2023] Open
Abstract
Cardiovascular diseases (CVD) are on the rise in Sub-Saharan Africa, and a large proportion of the adult population is thought to suffer from at least one cardiometabolic risk factor. This study assessed cardiometabolic risk factors and the contribution of nutrition-related indicators in Gambian women. The prevalence and co-existence of diabetes (elevated glycated hemoglobin (HbA1c ≥ 6.5%) or prediabetes (HbA1c ≥ 5.7% to < 6.5%), hypertension (systolic blood pressure ≥ 140 mmHg or diastolic blood pressure ≥ 90 mmHg), obesity (body mass index (BMI) ≥ 30.0) and inflammation (C-reactive protein (CRP) > 3 mg/L or alpha-1-acid glycoprotein (AGP) > 1 g/L) and the contribution of nutrition related and socioeconomic indicators were measured in non-pregnant women 15-49 years of age in the Gambia using data from a nationally representative cross-sectional stratified survey. Nationally, 54.5% (95% CI: 47.4, 61.4) of 1407 women had elevated HbA1c. Of these, 14.9% were diabetic and 85.1% were prediabetic. Moreover, 20.8% (95% CI 17.8, 20.0) of 1685 women had hypertension, 11.1% (95% CI 9.0, 13.7) of 1651 were obese and 17.2% (95% CI 5.1, 19.6) of 1401 had inflammation. At least one of the aforementioned cardiometabolic risk factor was present in 68.3% (95% CI 63.0, 73.1) of women. Obesity increased the risk of hypertension (aRR 1.84; 95% CI 1.40, 2.41), diabetes (aRR 1.91; 95% CI 1.29, 2.84), elevated HbA1c (aRR 1.31; 95% CI 1.14, 1.51) and inflammation (aRR 3.47; 95% CI 2.61, 4.61). Inflammation increased the risk of hypertension (aRR 1.42; 95% CI 1.14, 1.78). Aging increased the risk of hypertension, obesity and inflammation. Further, inadequate sanitation increased the risk for diabetes (aRR 1.65; 95% CI 1.17, 2.34) and iron deficiency increased the risk of elevated HbA1c (aRR 1.21; 95% CI 1.09, 1.33). The high prevalence of cardiometabolic risk factors and their co-existence in Gambian women is concerning. Although controlling obesity seems to be key, multifaceted strategies to tackle the risk factors separately are warranted to reduce the prevalence or minimize the risk of CVD.
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Affiliation(s)
| | | | | | | | | | | | - Momodou K Darboe
- Medical Research Council Unit the Gambia at London, School of Hygiene and Tropical Medicine, Atlantic Boulevard, Fajara, Banjul, The Gambia
| | | | | | | | | | - Andrew M Prentice
- Medical Research Council Unit the Gambia at London, School of Hygiene and Tropical Medicine, Atlantic Boulevard, Fajara, Banjul, The Gambia
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Filteau S, PrayGod G, Rehman AM, Peck R, Jeremiah K, Krogh-Madsen R, Faurholt-Jepsen D. Prior undernutrition and insulin production several years later in Tanzanian adults. Am J Clin Nutr 2021; 113:1600-1608. [PMID: 33740034 PMCID: PMC8168356 DOI: 10.1093/ajcn/nqaa438] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 12/21/2020] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND The prevalence, pathology, and existence of malnutrition-associated diabetes remain uncertain, especially with respect to adult-acquired undernutrition. OBJECTIVE The aim was to investigate the association of prior undernutrition (low BMI, in kg/m2), acquired in adulthood and insulin during an oral glucose tolerance test (OGTT). METHODS We followed up 630 adults recruited 7-14 y previously for other studies. Plasma insulin was measured fasting and at 30 and 120 min during an OGTT. The main exposure was BMI measured 7-14 y prior. The main outcome of interest was plasma insulin, controlling for time during the OGTT using generalized estimating equations, and exploratory outcomes were early insulin response (relative change in insulin and glucose from 0-30 min) and relative insulin and glucose AUCs from 0 to 120 min. Current confounding factors were age, sex, BMI, HIV, socioeconomic status, and physical activity. RESULTS In unadjusted analyses, increasing severity of prior malnutrition was associated with lower insulin concentration. In multivariate adjusted analyses, only current BMI was a strong predictor of overall insulin concentration. Associations with prior BMI of insulin responses accounting for glucose were also seen in unadjusted but not adjusted analyses. For insulin concentration but not the outcomes accounting for glucose, there was a sex interaction with prior BMI such that only men had lower insulin if previously malnourished: insulin (pmol/L) at 120 min was 311 (95% CI: 272, 351) for prior BMI ≥18.5, 271 (95% CI: 221, 321) for prior BMI 17.0-18.5, and 237 (95% CI: 194, 297) for prior BMI <17.0; P = 0.03. HIV status showed limited and variable associations with insulin. CONCLUSIONS Insulin concentration, fasting and during an OGTT, was normalized in women more than in men several years after adult malnutrition. Chronic malnutrition, as indicated by low prior and current BMI, may contribute to diabetes through low insulin secretion.
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Affiliation(s)
| | - George PrayGod
- National Institute for Medical Research, Mwanza, Tanzania
| | | | - Robert Peck
- Weill Cornell Medicine, New York, NY, USA,Weill Bugando School of Medicine, Mwanza, Tanzania
| | | | - Rikke Krogh-Madsen
- Centre of Inflammation and Metabolism and Centre for Physical Activity Research, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
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Ladwa M, Bello O, Hakim O, Shojaee-Moradie F, Boselli ML, Charles-Edwards G, Peacock J, Umpleby AM, Amiel SA, Bonadonna RC, Goff LM. Ethnic differences in beta cell function occur independently of insulin sensitivity and pancreatic fat in black and white men. BMJ Open Diabetes Res Care 2021; 9:9/1/e002034. [PMID: 33762314 PMCID: PMC7993168 DOI: 10.1136/bmjdrc-2020-002034] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 01/21/2021] [Accepted: 02/11/2021] [Indexed: 12/12/2022] Open
Abstract
INTRODUCTION It is increasingly recognized that type 2 diabetes (T2D) is a heterogenous disease with ethnic variations. Differences in insulin secretion, insulin resistance and ectopic fat are thought to contribute to these variations. Therefore, we aimed to compare postprandial insulin secretion and the relationships between insulin secretion, insulin sensitivity and pancreatic fat in men of black West African (BA) and white European (WE) ancestry. RESEARCH DESIGN AND METHODS A cross-sectional, observational study in which 23 WE and 23 BA men with normal glucose tolerance, matched for body mass index, underwent a mixed meal tolerance test with C peptide modeling to measure beta cell insulin secretion, an MRI to quantify intrapancreatic lipid (IPL), and a hyperinsulinemic-euglycemic clamp to measure whole-body insulin sensitivity. RESULTS Postprandial insulin secretion was lower in BA versus WE men following adjustment for insulin sensitivity (estimated marginal means, BA vs WE: 40.5 (95% CI 31.8 to 49.2) × 103 vs 56.4 (95% CI 48.9 to 63.8) × 103 pmol/m2 body surface area × 180 min, p=0.008). There was a significantly different relationship by ethnicity between IPL and insulin secretion, with a stronger relationship in WE than in BA (r=0.59 vs r=0.39, interaction p=0.036); however, IPL was not a predictor of insulin secretion in either ethnic group following adjustment for insulin sensitivity. CONCLUSIONS Ethnicity is an independent determinant of beta cell function in black and white men. In response to a meal, healthy BA men exhibit lower insulin secretion compared with their WE counterparts for their given insulin sensitivity. Ethnic differences in beta cell function may contribute to the greater risk of T2D in populations of African ancestry.
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Affiliation(s)
- Meera Ladwa
- Department of Diabetes, Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - Oluwatoyosi Bello
- Diabetes and Nutritional Sciences Division, Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - Olah Hakim
- Diabetes and Nutritional Sciences Division, Faculty of Life Sciences and Medicine, King's College London, London, UK
| | | | | | - Geoff Charles-Edwards
- School of Biomedical Engineering and Imaging Sciences, King's College London, London, UK
| | - Janet Peacock
- Department of Epidemiology, Dartmouth College Geisel School of Medicine, Hanover, New Hampshire, USA
| | - A Margot Umpleby
- Faculty of Health and Medical Sciences, University of Surrey, Guildford, Surrey, UK
| | - Stephanie A Amiel
- Department of Diabetes, Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - Riccardo C Bonadonna
- Department of Medicine and Surgery, University of Parma, Parma, Italy
- Endocrinologia e Malattie del Metabolismo, Azienda Ospedaliero-Universitaria di Parma, Parma, Italy
| | - Louise M Goff
- Diabetes and Nutritional Sciences Division, Faculty of Life Sciences and Medicine, King's College London, London, UK
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Ikechukwu EC, Gloria MU, Ikenna UC, Chinonso UV, Mmanwanne UE, Chinedu OO, Chukwudi AC, Nene JJ, Chinwe O, Nkechi AC. Physical Activity Level and Factors Affecting Exercise Participation among Nigerian Adults with and Without Diabetes. EUROPEAN MEDICAL JOURNAL 2021. [DOI: 10.33590/emj/20-00214] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Background: Diabetes presents a multifaceted challenge to health systems in Nigeria and beyond. Physical activity is a cornerstone of diabetes management but is often underutilised. Despite the positive effects of physical activity on different dimensions of health to patients with diabetes, most fail to maintain long-term adherence to physical activity programmes.
Objectives: This study aimed to determine the physical activity level and factors affecting exercise participation among patients with and without diabetes.
Methods: This was a cross-sectional study involving 400 participants recruited by convenience sampling. International Physical Activity Questionnaire (IPAQ) and Exercise Benefit and Barrier Scale (EBBS) questionnaires were used to measure physical activity and perceived benefits and barriers to exercise, respectively. The data collected were analysed using descriptive statistics of percentages and frequency, mean and standard deviation, and independent t-test. The level of significance was set at p<0.05.
Results: The majority of the patients with diabetes (71%) had low physical activity levels while 52% of the nondiabetic group were moderately active. There was a significant difference between physical activity levels of patients with diabetes and the nondiabetic group (p<0.05). Physical exertion was reported by both patients with and without diabetes as the greatest barrier to exercise participation.
Conclusion: Patients with diabetes in Nigeria have a low level of physical activity and are also faced with certain barriers which limit their participation in exercise programmes. Exercise barrier identification and public awareness on the health benefits of exercise and physical activity in the prevention and management of diabetes should thus be encouraged.
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Affiliation(s)
| | | | | | - Ugwueze Vitalis Chinonso
- Department of Physiotherapy, University of Nigeria Teaching Hospital, Ituku-Ozalla, Enugu, Nigeria
| | | | - Okezue Obinna Chinedu
- Department of Medical Rehabilitation, University of Nigeria, Enugu Campus, Enugu, Nigeria
| | | | - John Jeneviv Nene
- Department of Medical Rehabilitation, University of Nigeria, Enugu Campus, Enugu, Nigeria
| | - Obiekwe Chinwe
- Department of Physiotherapy, University of Nigeria Teaching Hospital, Ituku-Ozalla, Enugu, Nigeria
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PrayGod G, Filteau S, Range N, Kitilya B, Kavishe BB, Ramaiya K, Jeremiah K, Rehman AM, Changalucha J, Olsen MF, Andersen AB, Friis H, Krogh-Madsen R, Faurholt-Jepsen D. β-cell dysfunction and insulin resistance in relation to pre-diabetes and diabetes among adults in north-western Tanzania: a cross-sectional study. Trop Med Int Health 2021; 26:435-443. [PMID: 33406288 DOI: 10.1111/tmi.13545] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Studies on phenotypes of diabetes in Africa are inconsistent. We assessed the role of β-cell dysfunction and insulin resistance on pre-diabetes and diabetes. METHODS We included 1890 participants with mean age of 40.6 (SD11.9) years in a cross-sectional study among male and female adults in Tanzania during 2016 to 2017. Data on C-reactive protein (CRP), alpha-acid glycoprotein (AGP), HIV, oral glucose tolerance test (OGTT), body composition and insulin were collected. Insulinogenic index and HOMA-IR were used to derive an overall marker of β-cell dysfunction and insulin resistance which was categorised as follows: normal β-cell function and insulin sensitivity, isolated β-cell dysfunction, isolated insulin resistance, and combined β-cell dysfunction and insulin resistance. Pre-diabetes and diabetes were defined as 2-hour OGTT glucose between 7.8-11.0 and ≥ 11.1 mmol/L, respectively. Multinomial regression assessed the association of β-cell dysfunction and insulin resistance with outcome measures. RESULTS β-cell dysfunction, insulin resistance, and combined β-cell dysfunction and insulin resistance were associated with higher pre-diabetes risk. Similarly, isolated β-cell dysfunction (adjusted relative risk ratio (aRRR) 4.8 (95% confidence interval (CI) 2.5, 9.0), isolated insulin resistance (aRRR 3.2 (95% CI 1.5, 6.9), and combined β-cell dysfunction and insulin resistance (aRRR 35.9 (95% CI 17.2, 75.2) were associated with higher diabetes risk. CRP, AGP and HIV were associated with higher diabetes risk, but fat mass was not. 31%, 10% and 33% of diabetes cases were attributed to β-cell dysfunction, insulin resistance, and combined β-cell dysfunction and insulin resistance, respectively. CONCLUSIONS β-cell dysfunction seemed to explain most of diabetes cases compared to insulin resistance in this population. Cohort studies on evolution of diabetes in Africa are needed to confirm these results.
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Affiliation(s)
- George PrayGod
- Mwanza Research Centre, National Institute for Medical Research, Mwanza, Tanzania
| | - Suzanne Filteau
- Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, UK
| | - Nyagosya Range
- Muhimbili Research Centre, National Institute for Medical Research, Dar es Saalam, Tanzania
| | - Brenda Kitilya
- Mwanza Research Centre, National Institute for Medical Research, Mwanza, Tanzania
| | - Bazil B Kavishe
- Mwanza Research Centre, National Institute for Medical Research, Mwanza, Tanzania
| | | | - Kidola Jeremiah
- Mwanza Research Centre, National Institute for Medical Research, Mwanza, Tanzania
| | - Andrea M Rehman
- Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, UK
| | - John Changalucha
- Mwanza Research Centre, National Institute for Medical Research, Mwanza, Tanzania
| | - Mette Frahm Olsen
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark
| | | | - Henrik Friis
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark
| | - Rikke Krogh-Madsen
- Centre of Inflammation and Metabolism and Centre for Physical Activity Research, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
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Vedasto O, Morris B, Furia FF. Shared decision-making between health care providers and patients at a tertiary hospital diabetic Clinic in Tanzania. BMC Health Serv Res 2021; 21:8. [PMID: 33397373 PMCID: PMC7780625 DOI: 10.1186/s12913-020-06041-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 12/22/2020] [Indexed: 02/07/2023] Open
Abstract
Background Patients’ participation in decision making regarding their treatment is defined in ethical, legal and human rights standards in the provision of care that concerns health providers and the entire community. This study was conducted to document experiences of patients and health care providers on shared decision making. Methods This study employed a phenomenological study design using in-depth interview technique. Study participants were diabetic patients visiting the clinic and healthcare providers working at Muhimbili National Hospital. Data was collected using the semi-structured interview guide with open-ended questions using an audio digital recorder. Content analysis method was used during analysis whereby categories were reached through the process of coding assisted by Nvivo 12 software. Results Participants in this study expressed the role of shared decision-making in the care of patients with diabetes, with report of engagement of patients by health care providers in making treatment decisions. Participants reported no use of decision-making aids; however, health education tools were reported by participants to be used for educating patients. Limited time, patient beliefs and literacy were documented as barriers of effective engagement of patients in decision making by their healthcare providers. Conclusion Engagement of patients in decision-making was noted in this study as experienced by participants of this study. Time, patient beliefs and patient literacy were documented as barriers for patients engagement, therefore diabetic clinic at Muhimbili National Hospital need to devise mechanisms for ensuring patients involvement in treatment decisions. Supplementary Information The online version contains supplementary material available at 10.1186/s12913-020-06041-4.
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Affiliation(s)
- Osward Vedasto
- Department of Bioethics and Health Professionalism, School of Public Health and Social Sciences, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Baraka Morris
- Department of Bioethics and Health Professionalism, School of Public Health and Social Sciences, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Francis F Furia
- Department of Paediatrics and Child Health, School of Medicine, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania.
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Iradukunda A, Kembabazi S, Ssewante N, Kazibwe A, Kabakambira JD. Diabetic Complications and Associated Factors: A 5-Year Facility-Based Retrospective Study at a Tertiary Hospital in Rwanda. Diabetes Metab Syndr Obes 2021; 14:4801-4810. [PMID: 34984012 PMCID: PMC8703046 DOI: 10.2147/dmso.s343974] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 12/02/2021] [Indexed: 12/16/2022] Open
Abstract
INTRODUCTION Diabetes mellitus (DM) is a chronic metabolic disorder characterized by hyperglycemia resulting from defects in insulin production, insulin action, or both. Despite advances in DM diagnosis and management, the incidence of DM-related complications remains high. This study aimed to determine patterns of common complications and associated factors among hospitalized patients in Rwanda. METHODS A cross-sectional study, with retrospective chart review, was conducted at CHUK from July to August, 2021. Charts for DM patients admitted from January 2016 to December 2020 were considered while those inaccessible at the time of data collection were excluded. Linear regression model was used to assess the relationship between dependent and independent variables with a p < 0.05 considered statistically significant. RESULTS A total of 246 charts were reviewed. The median age was 56 years (IQR: 14-90). More than half of participants (n = 135; 54.9%) were females; majority from the Central region (n = 138; 56.7%). Recorded DM risk factors included alcohol intake (n = 81; 48.5%); smoking (n = 40; 24.2%), obesity (n = 43; 52.4%), and family history of DM (n = 27; 56.3%). Majority (n = 153; 84.5%) had type 2 DM and (n = 147; 69%) had known their diagnosis for at least 6 years. Hypertension (n = 124, 50.4%), acute hyperglycemic state (n = 59, 24%), nephropathy (n = 58, 23.6%), and stroke (n = 38, 15.4%) were frequently reported complications. Nearly all participants (n = 81, 95.2%) with complications had poor glycemic control. Alcohol intake, age ≥45 years, and T1DM were associated with higher odds of DM complications (aOR = 8, 95% CI = 2-32.6, p = 0.003, aOR = 6.2, 95% CI = 1.4-27.6, p = 0.016 and aOR = 14.1, 95% CI = 1.2-161.5, p = 0.034, respectively). Duration of DM (p = 0.001) was significant at bivariate analysis. CONCLUSION DM complications were prevalent among the studied population with poor glycemic control mainly influenced by alcohol consumption and duration of DM. Expansion of integrated DM and hypertension screening services to lower-level centers is needed to reduce the associated morbidity and mortality.
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Affiliation(s)
- Angelique Iradukunda
- School of Medicine, College of Health Sciences, Makerere University, Kampala, Uganda
- Correspondence: Angelique Iradukunda School of Medicine, College of Health Sciences, Makerere University, Kampala, Uganda Email
| | - Shallon Kembabazi
- School of Medicine, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Nelson Ssewante
- School of Medicine, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Andrew Kazibwe
- Department of Internal Medicine, College of Health Sciences, Makerere University, Kampala, Uganda
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Bavuma CM, Musafiri S, Rutayisire PC, Ng'ang'a LM, McQuillan R, Wild SH. Socio-demographic and clinical characteristics of diabetes mellitus in rural Rwanda: time to contextualize the interventions? A cross-sectional study. BMC Endocr Disord 2020; 20:180. [PMID: 33302939 PMCID: PMC7731466 DOI: 10.1186/s12902-020-00660-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 11/30/2020] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND Existing prevention and treatment strategies target the classic types of diabetes yet this approach might not always be appropriate in some settings where atypical phenotypes exist. This study aims to assess the socio-demographic and clinical characteristics of people with diabetes in rural Rwanda compared to those of urban dwellers. METHODS A cross-sectional, clinic-based study was conducted in which individuals with diabetes mellitus were consecutively recruited from April 2015 to April 2016. Demographic and clinical data were collected from patient interviews, medical files and physical examinations. Chi-square tests and T-tests were used to compare proportions and means between rural and urban residents. RESULTS A total of 472 participants were recruited (mean age 40.2 ± 19.1 years), including 295 women and 315 rural residents. Compared to urban residents, rural residents had lower levels of education, were more likely to be employed in low-income work and to have limited access to running water and electricity. Diabetes was diagnosed at a younger age in rural residents (mean ± SD 32 ± 18 vs 41 ± 17 years; p < 0.001). Physical inactivity, family history of diabetes and obesity were significantly less prevalent in rural than in urban individuals (44% vs 66, 14.9% vs 28.7 and 27.6% vs 54.1%, respectively; p < 0.001). The frequency of fruit and vegetable consumption was lower in rural than in urban participants. High waist circumference was more prevalent in urban than in rural women and men (75.3% vs 45.5 and 30% vs 6%, respectively; p < 0.001). History of childhood under-nutrition was more frequent in rural than in urban individuals (22.5% vs 6.4%; p < 0.001). CONCLUSIONS Characteristics of people with diabetes in rural Rwanda appear to differ from those of individuals with diabetes in urban settings, suggesting that sub-types of diabetes exist in Rwanda. Generic guidelines for diabetes prevention and management may not be appropriate in different populations.
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Affiliation(s)
- Charlotte M Bavuma
- School of Medicine and Pharmacy, College of Medicine and Health Sciences, University of Rwanda, Kigali, Rwanda.
| | - Sanctus Musafiri
- School of Medicine and Pharmacy, College of Medicine and Health Sciences, University of Rwanda, Kigali, Rwanda
| | | | | | - Ruth McQuillan
- School of Medicine and Pharmacy, College of Medicine and Health Sciences, University of Rwanda, Kigali, Rwanda
- Usher Institute, University of Edinburgh, Edinburgh, UK
| | - Sarah H Wild
- School of Medicine and Pharmacy, College of Medicine and Health Sciences, University of Rwanda, Kigali, Rwanda
- Usher Institute, University of Edinburgh, Edinburgh, UK
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Milln JM, Walugembe E, Ssentayi S, Nkabura H, Jones AG, Nyirenda MJ. Comparison of oral glucose tolerance test and ambulatory glycaemic profiles in pregnant women in Uganda with gestational diabetes using the FreeStyle Libre flash glucose monitoring system. BMC Pregnancy Childbirth 2020; 20:635. [PMID: 33076849 PMCID: PMC7574406 DOI: 10.1186/s12884-020-03325-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 10/09/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The diagnosis of hyperglycaemia in sub-Saharan Africa (SSA) is challenging. Blood glucose levels obtained during oral glucose tolerance test (OGTT) may not reflect home glycaemic profiles. We compare OGTT results with home glycaemic profiles obtained using the FreeStyle Libre continuous glucose monitoring device (FSL-CGM). METHODS Twenty-eight women (20 with gestational diabetes [GDM], 8 controls) were recruited following OGTT between 24 and 28 weeks of gestation. All women wore the FSL-CGM device for 48-96 h at home in early third trimester, and recorded a meal diary. OGTT was repeated on the final day of FSL-CGM recording. OGTT results were compared with ambulatory glycaemic variables, and repeat OGTT was undertaken whilst wearing FSL-CGM to determine accuracy of the device. RESULTS FSL-CGM results were available for 27/28 women with mean data capture 92.8%. There were significant differences in the ambulatory fasting, post-prandial peaks, and mean glucose between controls in whom both primary and secondary OGTT was normal (n = 6) and those with two abnormal OGTTs or "true" GDM (n = 7). There was no difference in ambulatory mean glucose between these controls and the 13 women who had an abnormal primary OGTT and normal repeat OGTT. These participants had significantly lower body mass index (BMI) than the true GDM group (29.0 Vs 36.3 kg/m2, p-value 0.014). Paired OGTT/FSL-CGM readings revealed a Mean Absolute difference (MAD) -0.58 mmol/L and Mean Absolute Relative Difference (MARD) -11.9%. Bland-Altman plot suggests FSL-CGM underestimated blood glucose by approximately 0.78 mmol/L. CONCLUSION Diagnosis of GDM on a single OGTT identifies a proportion of women who do not have a significantly higher home glucose levels than controls. This raises questions about factors which may affect the reproducibility of OGTT in this population, including food insecurity and atypical phenotypes of diabetes. More investigation is needed to understand the suitability of the OGTT as a diagnostic test in sub-Saharan Africa.
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Affiliation(s)
- J M Milln
- Non-Communicable Diseases Theme, Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine (MRC/UVRI & LSHTM) Uganda Research Unit, Plot 51-59, Nakiwogo Road, P. O. BOX 49, Entebbe, Uganda.
- Department of Endocrinology and Diabetes, Queen Mary University of London, Mile End Road, London, UK.
| | - E Walugembe
- Non-Communicable Diseases Theme, Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine (MRC/UVRI & LSHTM) Uganda Research Unit, Plot 51-59, Nakiwogo Road, P. O. BOX 49, Entebbe, Uganda
| | - S Ssentayi
- Non-Communicable Diseases Theme, Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine (MRC/UVRI & LSHTM) Uganda Research Unit, Plot 51-59, Nakiwogo Road, P. O. BOX 49, Entebbe, Uganda
| | - H Nkabura
- Non-Communicable Diseases Theme, Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine (MRC/UVRI & LSHTM) Uganda Research Unit, Plot 51-59, Nakiwogo Road, P. O. BOX 49, Entebbe, Uganda
| | - A G Jones
- National Institute for Health and Research (NIHR), Exeter Clinical Research Facility, University of Exeter Medical School, Exeter, UK
| | - M J Nyirenda
- Non-Communicable Diseases Theme, Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine (MRC/UVRI & LSHTM) Uganda Research Unit, Plot 51-59, Nakiwogo Road, P. O. BOX 49, Entebbe, Uganda
- Department of Non-Communicable Diseases Epidemiology, London School of Hygiene and Tropical Medicine (LSHTM), London, UK
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46
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John JE, John NA. Imminent risk of COVID-19 in diabetes mellitus and undiagnosed diabetes mellitus patients. Pan Afr Med J 2020; 36:158. [PMID: 32874422 PMCID: PMC7436637 DOI: 10.11604/pamj.2020.36.158.24011] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 06/08/2020] [Indexed: 01/21/2023] Open
Abstract
Diabetes mellitus is a non-infectious disease and has affected about 425 million adults globally and nearly 15.9 million of them reside in Africa. Moreover, the prevalence of undiagnosed diabetes mellitus is very high in Africa and approximates to around 62%. Nearly 75% of the total deaths due to diabetes are in individuals lesser than 60 years of age. The multifaceted disease of diabetes mellitus produces chronic complications such as, neuropathy, nephropathy, retinopathy, microangiopathy etc. These patients of diabetes mellitus are more susceptible to infections due to compromised immune system. Hence these patients of diabetes mellitus and undiagnosed diabetes mellitus are at greater risk of contracting COVID-19 infections. The dual impact of pathophysiology of COVID-19 infections in diabetes mellitus may increase morbidity and mortality in these patients. Hence there is need of health awareness in diabetics as well in the high-risk group for diabetes such as persons with hypertension and obesity. The scarcity of health resources, shortage of trained medical personnel and disease burden of infectious and non-infectious diseases has laid a heavy impact on the economy in Africa and this has been further strained due to the COVID-19 pandemic. The practice of preventive measures by the risk group of Undiagnosed Diabetes Mellitus patients will prevent them from getting infected by COVID-19 and at the same time decrease mortality rates and hence the undiscovered group that is the patients of undiagnosed diabetes mellitus needs to be vigilant regarding safe preventive practices.
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Affiliation(s)
- Jyoti Elgiva John
- Department of Biochemistry, All India Institute of Medical Sciences, Nagpur, India
| | - Nitin Ashok John
- Department of Physiology, Dr Ram Manohar Lohia Institute of Medical Sciences, Lucknow, India
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47
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Yahaya T, Salisu T. Genes predisposing to type 1 diabetes mellitus and pathophysiology: a narrative review. MEDICAL JOURNAL OF INDONESIA 2020. [DOI: 10.13181/mji.rev.203732] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
The possibility of targeting the causal genes along with the mechanisms of pathogenically complex diseases has led to numerous studies on the genetic etiology of some diseases. In particular, studies have added more genes to the list of type 1 diabetes mellitus (T1DM) suspect genes, necessitating an update for the interest of all stakeholders. Therefore this review articulates T1DM suspect genes and their pathophysiology. Notable electronic databases, including Medline, Scopus, PubMed, and Google-Scholar were searched for relevant information. The search identified over 73 genes suspected in the pathogenesis of T1DM, with human leukocyte antigen, insulin gene, and cytotoxic T lymphocyte-associated antigen 4 accounting for most of the cases. Mutations in these genes, along with environmental factors, may produce a defective immune response in the pancreas, resulting in β-cell autoimmunity, insulin deficiency, and hyperglycemia. The mechanisms leading to these cellular reactions are gene-specific and, if targeted in diabetic individuals, may lead to improved treatment. Medical practitioners are advised to formulate treatment procedures that target these genes in patients with T1DM.
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Godman B, Basu D, Pillay Y, Mwita JC, Rwegerera GM, Anand Paramadhas BD, Tiroyakgosi C, Okwen PM, Niba LL, Nonvignon J, Sefah I, Oluka M, Guantai AN, Kibuule D, Kalemeera F, Mubita M, Fadare J, Ogunleye OO, Distiller LA, Rampamba EM, Wing J, Mueller D, Alfadl A, Amu AA, Matsebula Z, Kalungia A, Zaranyika T, Masuka N, Wale J, Hill R, Kurdi A, Timoney A, Campbell S, Meyer JC. Review of Ongoing Activities and Challenges to Improve the Care of Patients With Type 2 Diabetes Across Africa and the Implications for the Future. Front Pharmacol 2020; 11:108. [PMID: 32265688 PMCID: PMC7098994 DOI: 10.3389/fphar.2020.00108] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 01/28/2020] [Indexed: 12/20/2022] Open
Abstract
Background There has been an appreciable increase in the number of people in Africa with metabolic syndrome and Type 2 diabetes (T2DM) in recent years as a result of a number of factors. Factors include lifestyle changes, urbanisation, and the growing consumption of processed foods coupled with increasing levels of obesity. Currently there are 19 million adults in Africa with diabetes, mainly T2DM (95%), estimated to grow to 47 million people by 2045 unless controlled. This has a considerable impact on morbidity, mortality and costs in the region. There are a number of issues to address to reduce the impact of T2DM including improving detection rates and current access to services alongside addressing issues of adherence to prescribed medicines. There are also high rates of co-morbidities with infectious diseases such as HIV and tuberculosis in patients in Africa with T2DM that require attention. Objective Document ongoing activities across Africa to improve the care of patients with T2DM especially around issues of identification, access, and adherence to changing lifestyles and prescribed medicines. In addition, discussing potential ways forward to improve the care of patients with T2DM based on ongoing activities and experiences including addressing key issues associated with co-morbidities with infectious diseases. Our Approach Contextualise the findings from a wide range of publications including internet based publications of national approaches coupled with input from senior level government, academic and other professionals from across Africa to provide future guidance. Ongoing Activities A number of African countries are actively instigating programmes to improve the care of patients with T2DM starting with improved diagnosis. This recognises the growing burden of non-communicable diseases across Africa, which has been neglected in the past. Planned activities include programmes to improve detection rates and address key issues with diet and lifestyle changes, alongside improving monitoring of care and activities to enhance adherence to prescribed medicines. In addition, addressing potential complexities involving diabetes patients with infectious disease co-morbidities. It is too early to fully assess the impact of such activities. Conclusion There are a number of ongoing activities across Africa to improve the management of patients with diabetes including co-morbidities. However, more needs to be done considering the high and growing burden of T2DM in Africa. Ongoing research will help further benefit resource allocation and subsequent care.
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Affiliation(s)
- Brian Godman
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, United Kingdom.,Division of Public Health Pharmacy and Management, School of Pharmacy, Sefako Makgatho Health Sciences University, Pretoria, South Africa.,Division of Clinical Pharmacology, Karolinska Institute, Karolinska University Hospital Huddinge, Stockholm, Sweden.,Health Economics Centre, University of Liverpool Management School, Liverpool, United Kingdom
| | - Debashis Basu
- Department of Public Health Medicine, Steve Biko Academic Hospital, University of Pretoria, Pretoria, South Africa
| | - Yogan Pillay
- HIV & AIDS, TB and Maternal, Child and Women's Health, National Department of Health, Pretoria, South Africa
| | - Julius C Mwita
- Department of Internal Medicine, Faculty of Medicine, University of Botswana, Gaborone, Botswana
| | - Godfrey Mutashambara Rwegerera
- Department of Internal Medicine, Faculty of Medicine, University of Botswana, Gaborone, Botswana.,Department of Medicine, Princess Marina Hospital, Gaborone, Botswana
| | | | - Celda Tiroyakgosi
- Botswana Essential Drugs Action Program, Ministry of Health and Wellness, Gaborone, Botswana
| | - Patrick Mbah Okwen
- Effective Basic Services (eBASE) Africa, Bamenda, Cameroon.,Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, SA, Australia
| | - Loveline Lum Niba
- Effective Basic Services (eBASE) Africa, Bamenda, Cameroon.,Department of Public Health, University of Bamenda, Bambili, Cameroon
| | | | - Israel Sefah
- Department of Pharmacy, Keta Municipal Hospital, Ghana Health Service, Keta, Ghana
| | - Margaret Oluka
- Department of Pharmacology and Pharmacognosy, School of Pharmacy, University of Nairobi, Nairobi, Kenya
| | - Anastasia N Guantai
- Department of Pharmacy Practice and Policy, Faculty of Health Sciences, University of Namibia, Windhoek, Namibia
| | - Dan Kibuule
- Department of Pharmacy Practice and Policy, Faculty of Health Sciences, University of Namibia, Windhoek, Namibia
| | - Francis Kalemeera
- Department of Pharmacy Practice and Policy, Faculty of Health Sciences, University of Namibia, Windhoek, Namibia
| | - Mwangana Mubita
- Department of Pharmacy Practice and Policy, Faculty of Health Sciences, University of Namibia, Windhoek, Namibia
| | - Joseph Fadare
- Department of Pharmacology and Therapeutics, Ekiti State University, Ado-Ekiti, Nigeria.,Department of Medicine, Ekiti State University Teaching Hospital, Ado-Ekiti, Nigeria
| | - Olayinka O Ogunleye
- Department of Pharmacology, Therapeutics and Toxicology, Lagos State University College of Medicine, Lagos, Nigeria.,Department of Medicine, Lagos State University Teaching Hospital, Lagos, Nigeria
| | - Larry A Distiller
- Centre for Diabetes & Endocrinology (Pty) Ltd, Johannesburg, South Africa
| | - Enos M Rampamba
- Division of Public Health Pharmacy and Management, School of Pharmacy, Sefako Makgatho Health Sciences University, Pretoria, South Africa.,Department of Pharmacy, Tshilidzini Regional Hospital, Limpopo Department Of Health, Shayandima, South Africa
| | - Jeffrey Wing
- School of Clinical Medicine, University of the Witwatersrand, Johannesburg, South Africa
| | - Debjani Mueller
- Department of Public Health Medicine, Steve Biko Academic Hospital, University of Pretoria, Pretoria, South Africa.,Charlotte Maxeke Medical Research Cluster, Johannesburg, South Africa
| | - Abubakr Alfadl
- National Medicines Board, Federal Ministry of Health, Khartoum, Sudan.,Unaizah College of Pharmacy, Qassim University, Unaizah, Saudi Arabia
| | | | | | - Aubrey Kalungia
- Department of Pharmacy, School of Health Sciences, University of Zambia, Lusaka, Zambia
| | - Trust Zaranyika
- Department of Medicine, University of Zimbabwe College of Health Sciences, Harare, Zimbabwe
| | - Nyasha Masuka
- Independent Health Systems Consultant, Harare, Zimbabwe
| | - Janney Wale
- Independent Consumer Advocate, Brunswick, VIC, Australia
| | - Ruaraidh Hill
- Liverpool Reviews and Implementation Group, Liverpool University, Liverpool, United Kingdom
| | - Amanj Kurdi
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, United Kingdom.,Department of Pharmacology, College of Pharmacy, Hawler Medical University, Erbil, Iraq
| | - Angela Timoney
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, United Kingdom.,NHS Lothian Director of Pharmacy, NHS Lothian, Edinburgh, United Kingdom
| | - Stephen Campbell
- Centre for Primary Care, Division of Population Health, Health Services Research and Primary Care, University of Manchester, Manchester, United Kingdom.,NIHR Greater Manchester Patient Safety Translational Research Centre, School of Health Sciences, University of Manchester, Manchester, United Kingdom
| | - Johanna C Meyer
- Division of Public Health Pharmacy and Management, School of Pharmacy, Sefako Makgatho Health Sciences University, Pretoria, South Africa
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Asamoah EA, Obirikorang C, Acheampong E, Annani-Akollor ME, Laing EF, Owiredu EW, Anto EO. Heritability and Genetics of Type 2 Diabetes Mellitus in Sub-Saharan Africa: A Systematic Review and Meta-Analysis. J Diabetes Res 2020; 2020:3198671. [PMID: 32685554 PMCID: PMC7352126 DOI: 10.1155/2020/3198671] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 06/08/2020] [Indexed: 02/01/2023] Open
Abstract
OBJECTIVES Sub-Saharan Africa (SSA) is observing an accelerating prevalence rate of type 2 diabetes mellitus (T2DM) influenced by gene-environment interaction of modifiable and nonmodifiable factors. We conducted a systematic review and meta-analysis on the heritability and genetic risk of T2DM in SSA. METHODS We reviewed all published articles on T2DM in SSA between January 2000 and December 2019 and available in PubMed, Scopus, and Web of Science. Studies that reported on the genetics and/or heritability of T2DM or indicators of glycaemia were included. Data extracted included the study design, records of family history, pattern and characteristics of inheritance, genetic determinants, and effects estimates. RESULTS The pattern and characteristics of T2DM heritability in SSA are preference for maternal aggregation, higher among first degree compared to second-degree relatives; early age-onset (<50 years), and inherited abnormalities of beta-cell function/mass. The overall prevalence of T2DM was 28.2% for the population with a positive family history (PFH) and 11.2% for the population with negative family history (NFH). The pooled odds ratio of the impact of PFH on T2DM was 3.29 (95% CI: 2.40-4.52). Overall, 28 polymorphisms in 17 genes have been investigated in relation with T2DM in SSA. Almost all studies used the candidate gene approach with most (45.8%) of genetic studies published between 2011 and 2015. Polymorphisms in ABCC8, Haptoglobin, KCNJ11, ACDC, ENPP1, TNF-α, and TCF7L2 were found to be associated with T2DM, with overlapping effect on specific cardiometabolic traits. Genome-wide studies identified ancestry-specific signals (AGMO-rs73284431, VT11A-rs17746147, and ZRANB3) and TCF7L2-rs7903146 as the only transferable genetic risk variants to SSA population. TCF7L2-rs7903146 polymorphism was investigated in multiple studies with consistent effects and low-moderate statistical heterogeneity. Effect sizes were modestly strong [odds ratio = 6.17 (95% CI: 2.03-18.81), codominant model; 2.27 (95% CI: 1.50-3.44), additive model; 1.75 (95% CI: 1.18-2.59), recessive model]. Current evidence on the heritability and genetic markers of T2DM in SSA populations is limited and largely insufficient to reliably inform the genetic architecture of T2DM across SSA regions.
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Affiliation(s)
- Evans Adu Asamoah
- Department of Molecular Medicine, School of Medicine and Dentistry, Kwame Nkrumah University of Science and Technology, Ghana
| | - Christian Obirikorang
- Department of Molecular Medicine, School of Medicine and Dentistry, Kwame Nkrumah University of Science and Technology, Ghana
| | - Emmanuel Acheampong
- Department of Molecular Medicine, School of Medicine and Dentistry, Kwame Nkrumah University of Science and Technology, Ghana
| | - Max Efui Annani-Akollor
- Department of Molecular Medicine, School of Medicine and Dentistry, Kwame Nkrumah University of Science and Technology, Ghana
| | - Edwin Ferguson Laing
- Department of Molecular Medicine, School of Medicine and Dentistry, Kwame Nkrumah University of Science and Technology, Ghana
| | - Eddie-Williams Owiredu
- Department of Molecular Medicine, School of Medicine and Dentistry, Kwame Nkrumah University of Science and Technology, Ghana
| | - Enoch Odame Anto
- Department of Molecular Medicine, School of Medicine and Dentistry, Kwame Nkrumah University of Science and Technology, Ghana
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