IFEMED
Journal of the Obafemi Awolowo University Medical Students’ Association
J. Ifemed | vol 27| issue 1|2023
https://ifemedjc.com
Ifemed Journal of Medicine
May be reproduced with permission and acknowledgement
Copyright © 2023 Obafemi Awolowo University Medical Students’ Association. All rights reserved.
Diabetic Kidney Disease in Africa: Epidemiology,
Management, and Prevention
Olaitan Komolafe
1
, Morenikeji Oluduro
2,
Joyce Popoola
3
, Oluyomi Okunola
4
1
Clinical I, Faculty of Clinical Sciences, College of Health Sciences, Obafemi Awolowo University, Ile-Ife, Nigeria
2
Clinical III, Faculty of Clinical Sciences, College of Health Sciences, Obafemi Awolowo University, Ile-Ife, Nigeria
3
Consultant Nephrologist, St. George University Hospital, United Kingdom
4
Professor, Consultant Nephrologist, Obafemi Awolowo University Teaching Hospital Complex
ABSTRACT
Diabetes is a worldwide pandemic, with more than 75 percent of people with diabetes estimated to live in developing nations by 2025. This epidemic in
developing countries has been attributed to urbanization and westernization, altered nutritional intake, increasing sedentary lifestyle, and established risk
factors, including age, and gender. The management of diabetic kidney disease follows a multi-disciplinary approach, with blood glucose control, hypertension
control, pharmacologic intervention, and lifestyle modification such as weight reduction and increased physical activity. In most of Sub-Saharan Africa,
economic challenges pose a barrier to treating and preventing diabetes and its complications. This is due to a lack of screening, the rising cost of medications,
and inadequate universal health coverage such as national insurance schemes, resulting in affected individuals seeking treatment late.
This article elaborates on the risk factors, epidemiology, and treatment strategies of diabetic kidney disease and highlights strategies for its prevention in
Africa.
KEYWORDS: Diabetes, Diabetic Kidney Disease, Africa
INTRODUCTION
For centuries, communicable diseases and uncontrolled
epidemics were the major cause of death worldwide. However,
breakthroughs in medicine and research have curbed the
deleterious effects of communicable diseases on society. In its
stead, non-communicable diseases are at the forefront of
mortality.
1
The World Health Organization (WHO) estimates
that non-communicable diseases, including cardiovascular
diseases, diabetes, cancers, and obesity-related conditions,
account for 59% of global deaths worldwide and almost half
(49.5%) of the global disease burden.
2
Diabetes is a worldwide pandemic, with more than 75
percent of people with diabetes estimated to live in developing
nations by 2025. (Table 1) Poorly managed diabetes results in
severe complications, including end-stage renal failure,
blindness, amputation, and cardiovascular diseases
3
, that
burden developing countries with limited resources, who still
struggle to meet the challenges of infectious diseases.
2
Most cases of diabetes fall into one of two categories:
Type 1, which is caused by severe insulin deficiency, occurs in
<10% of all cases and tends to occur in younger subjects. Type 2
diabetes is usually seen in older adults but is diagnosed with
increasing frequency in younger age groups. Insulin resistance
and islet beta cell defect are the characteristic pathologic
findings in type 2 diabetes.
3
Diabetes is the most common cause of chronic kidney
disease (CKD) in developed countries and a major cause in
developing countries.
4
Other predisposing factors to CKD
include hyperglycemia, systemic hypertension, glomerular
hyperfiltration, low nephron mass, genetic predisposition,
proteinuria, lipid abnormalities, and Advanced Glycosylation
End Products (AGEs).
Diabetic kidney disease (DKD) is a heterogeneous clinical
condition characterized by the presence of persistent overt
proteinuria (urine albumin creatinine ratio or UACR ≥ 300 mg/g
or 3 mg/mmol) and declining renal function reflected by an
estimated glomerular filtration rate (e-GFR) of < 60 ml/min/1.73
m
2
.
5
Diabetic kidney disease (DKD) is a complication in 20-
40% of all people with diabetes.
6
It is a chronic complication of
both type 1 diabetes mellitus (DM) and type 2 DM
6
; however,