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Item Exposure to agrochemicals and markers of kidney damage among farmers in rural communities in Southwestern Nigeria(2021) Ajayi, S.O.; Raji, Y.R.; Michael, O.S.; Adewole, D.; Akande, T.; Abiola, B.; Aminu, S.; Olugbenga-Bello, A.; Arije, A.Background: Chronic kidney disease of unknown origin (CKDu) is assuming an epidemic proportion, especially in farming communities worldwide. We explored the relationship between CKD markers and agrochemical exposure among rural farmers in South Western Nigeria. Methods: We studied selected farming communities in Southwestern Nigeria where the use of agrochemicals was widespread. A pre-tested questionnaire was administered to participants. Anthropometric data, information on use of agrochemicals; urine and blood samples were obtained. Informed consent was obtained from participants. The study was approved by the Institutional Ethics committee and complied with 1975 Helsinki declaration, as revised in 2000. Results: A total of 438 farmers made up of 202 males (46.1%) and 236 females (53.9%) were studied. The mean microalbuminuria was 30.2 ±11.7 mg/dl. Majority of the farmers had CKD stage 2 (42.0%) and CKD stage 3 (37.7%). The type of farming engaged in had a positive, but not significant, correlation with eGFR (r=0.012, p=0.832). There was positive correlation between type of farming and GFR category (r=0.24, p=0.000). Frequency of use of hexachlorocyclohexane had a positive and significant correlation with eGFR (r=0.111, p=0.045). Annual crop farming had a correlation with UACR (r=0.149, p=0.024). Conclusion: Annual crop farming had a positive correlation with UACR, eGFR and GFR category. The prolonged use of agrochemicals on an annual basis can cause kidney damage.Item Association between depression and hypertension in the Ibadan Study of Ageing. African(2020) Ajayi, S.O.; Oladeji, B.; Abiona, T.; Gureje, O.Introduction: The elderly population is growing all over the world with attendant increase in occurrence of comorbid conditions. Using data from a longitudinal study of community-dwelling elderly persons in Nigeria, we explored the prevalence and corelates of hypertension and depression as well as the factors associated with the comorbidity of these two conditions. Methods: The Ibadan Study of Ageing, a longitudinal community-based cohort study conducted between 2003 and 2009 on the profile and determinants of successful ageing. A multistage cluster random sampling was used to select a cohort of elderly participants from across eight contiguous Yoruba speaking states in Nigeria- Ekiti, Kogi, Kwara, Lagos, Ogun, Ondo, Osun, and Oyo. Participants (non-institutionalized elderly, aged 65 years or over) were assessed at 4 time points: baseline(2003/2004) and annually from 2007 (wave 1), 2008 (wave 2 and 2009 (wave 3). Data was collected in face-to-face interviews; depression was assessed using the World Mental Health initiative version of the Composite International Diagnostic Interview (CIDI), social engagement was assessed using an adapted World Health Organization Disability Assessment Schedule WHODAS) and functional disability using activities of daily living (ADL) and instrumental activities of daily living (IADL). Hypertension was defined according to the Joint National Committee-7(JNC7) recommendations as systolic blood pressure of 140 mmHg and above, diastolic blood pressure of 90mmHg. This current study is based on cross-sectional data from the wave 1(2007) assessment. Results: Of the 1597 participants, 58% were females and 42% were 70 years and older. The mean age was 74.2 years (SD ±7.8). Nine hundred and ninety-eight (62.5%) participants had hypertension while 177 (10.6%) met the criteria for major depression while comorbid depression and hypertension was present in 122 (7.1%). The comorbidity of hypertension and depression was significantly associated with gender (higher in women) (p=0.001), insomnia (p=0.001), lack of family participation (p=0.001), lack of community participation (p=0.002), and experiencing a negative life event in the past year (p=0.003). In a multivariate analysis, lack of participation in family activities was associated with an increased risk of co-morbidity between hypertension and depression (OR 4.51, p=0.000, CI 2.14-9.50). Conclusions: These findings suggest that the comorbidity of depression and hypertension could potentially be minimized by modifying social risk factors such as keeping the elderly involved in family and community life participation by promoting their involvement in recreational and volunteer activities as well as social gatherings.Item Challenges and possible solutions to peritoneal dialysis use in Nigeria.(2020) Ajayi, S.; Raji, Y.; Bello, T.; Arije, A.Introduction: peritoneal dialysis is a form of renal replacement therapy that is both effective and relatively affordable. Peritoneal dialysis (PD) was first used in Nigeria as a treatment option for renal failure. Its use was first reported in Nigeria in 1969 and became more widespread in the 80s and 90s. Haemodialysis, which is capital intensive to set up and requires infrastructures and facilities such as electricity, intense water consumption and buildings, seems to have upstaged peritoneal dialysis both in demand and supply. Methods: this cross-sectional study is a convenient survey of nephrologists, renal technicians and nurses in Nigeria. We used a structured, self-administered questionnaire on a cross-section of members and associate members attending a national nephrology association meeting. Results: there were 68(54.4%) doctors, 43(27.2%) nurses, and 14(11.2%) renal technicians, all from medical institutions with renal treatment programs who participated in the study. The most common problems encountered with PD use are financial constraints (51.7%), inadequate fluid supply (50%), frequent line blockage (22.4%) and frequent infections (17.2%). Reasons attributed to the stoppage of PD in the centres included lack of PD fluids (50.8%), unavailability of PD catheters (22.8%), lack of expert personnel to train (15.8%). Conclusion: main challenges to peritoneal dialysis use in Nigeria include limited experience and training and availability and cost of consumables. Effort to overcome the factors militating against its use should be positively pursued so that peritoneal dialysis will be reintegrated into the mainstream of renal replacement therapy once moreItem Urinary transforming growth Factor-Beta 1 (uTGF-β1) and prevalent CKD risk in HIVpositive patients in West Africa(2019) Ekrikpo, U.E.; Okuku, C.N.; Ajayi, S.O.; Ayodele, O.E.; Bello, A.K.; Wonkam, A.; Dandara, C.; Kengne, A.P.; Okpechi, I.Introduction: This study investigated the association of urinary transforming growth factor-b1 (uTGF-b1) with prevalent chronic kidney disease (CKD) in the HIV-infected population. Methods: HIV-positive patients without CKD (HIVþCKD, n ¼ 194) and 114 with CKD (HIV CKD) who did not have hypertension, diabetes mellitus, or hepatitis B or C, had their urinary protein-creatinine ratio (uPCR), serum transforming growth factor (TGF)–b1, and uTGF-b1 measured. uTGF-b1-creatinine ratios (uTGF-b1Cr) were calculated. Spearman correlation was used to determine the association between uTGF-b1Cr and various attributes, and the Cuzick trend test was used to assess the presence of a linear trend in median uTGF-b1Cr levels across the stages of CKD. Multivariable robust linear regression models were used to assess independent association with variability in uTGF-b1Cr and estimated glomerular filtration rate (eGFR) levels. Results: The age of the participants was 38.3 0.3 years with 73.4% women. The median uTGF-b1Cr was higher among HIV CKD (4.85 ng/mmol [25th–75th percentile 1.96–12.35] vs. 2.95 [1.02–5.84]; P ¼ 0.001]). There was significant correlation between uTGF-b1Cr and age (P ¼ 0.02), eGFR (P ¼ 0.001), and uPCR (P < 0.001) in the HIV CKD group. Among the HIV CKD patients, there was gradual reduction in the median level of uTGF-b1Cr with CKD severity (P ¼ 0.04). HIV CKD patients had significantly higher levels of uTGF-b1Cr after controlling for potential confounders. Using eGFR as dependent variable, proteinuria explained the changes associated with uTGF-b1Cr levels. Conclusion: HIV CKD patients express higher levels of uTGF-b1 especially in the early stages of CKD apparently related to proteinuria levels.Item Outcomes of tunneled internal jugular venous catheters for chronic haemodialysis at the University College Hospital, Ibadan, Nigeria.(2018) Raji, Y.R.; Ajayi, S.O.; Aminu O.; Abiola, B.; Efuntoye, O.; Salako, B.L.Introduction: vascular access is an important aspect of haemodialysis treatments and determinant of patient outcomes. Arteriovenous (AV) fistula has been described as the preferred haemodialysis vascular access for patients on chronic dialysis. There continues to be a challenge with the creation of AV fistula, due to shortage of vascular surgeons skilled in the AV fistula creation particularly in source limited setting. We described the outcomes of the tunneled internal jugular venous catheters amongst our patients at the University College Hospital (UCH) Ibadan. Methods: a retrospective study of patients on maintenance haemodialysis at the UCH, Ibadan, we reviewed the records of all patients on chronic dialysis over a period of 5 years. Information obtained include demographics, types and aetiology of renal failure, types of vascular access, observed complications and outcomes. Results: a total number of 147 catheters were inserted during the period under review, 94 were males while 53 were females. The age range was 18-85 years while the mean age was 46.3 ± 17.2 years. The range and mean duration for Tunneled Dialysis Catheter (TDC) carriage were (30 - 1,440) and 220±185 days respectively. The observed immediate complications of TDCs were failed first attempt 7(4.7%), reactionary haemorrhage 5(3.4%), arrhythmia 3(2.0%), haemothorax 2(1.4%) while death during catheter placement was recorded in 2(1.4%) cases. Catheter related infection was the commonest long-term complications and occurred in 15 cases (10.1%), while being diabetic increased the risk of developing catheter related complications. One tenth of our patients with End Stage Renal Disease on TDC had kidney transplantation while catheter related mortality was 16.3%. Conclusion: internal jugular tunneled dialysis catheters despite its shortcomings, has been a safe procedure with good outcomes among our patients on maintenance haemodialysis.Item Outcomes of tunneled internal jugular venous catheters for chronic haemodialysis at the University College Hospital, Ibadan, Nigeria(2018) Raji, Y.R.; Ajayi, S.O.; Aminu O.; Abiola, B.; Efuntoye, O.; Salako, B.L.Introduction: vascular access is an important aspect of haemodialysis treatments and determinant of patient outcomes. Arteriovenous (AV) fistula has been described as the preferred haemodialysis vascular access for patients on chronic dialysis. There continues to be a challenge with the creation of AV fistula, due to shortage of vascular surgeons skilled in the AV fistula creation particularly in source limited setting. We described the outcomes of the tunneled internal jugular venous catheters amongst our patients at the University College Hospital (UCH) Ibadan. Methods: a retrospective study of patients on maintenance haemodialysis at the UCH, Ibadan, we reviewed the records of all patients on chronic dialysis over a period of 5 years. Information obtained include demographics, types and aetiology of renal failure, types of vascular access, observed complications and outcomes. Results: a total number of 147 catheters were inserted during the period under review, 94 were males while 53 were females. The age range was 18-85 years while the mean age was 46.3 ± 17.2 years. The range and mean duration for Tunneled Dialysis Catheter (TDC) carriage were (30 - 1,440) and 220±185 days respectively. The observed immediate complications of TDCs were failed first attempt 7(4.7%), reactionary haemorrhage 5(3.4%), arrhythmia 3(2.0%), haemothorax 2(1.4%) while death during catheter placement was recorded in 2(1.4%) cases. Catheter related infection was the commonest long-term complications and occurred in 15 cases (10.1%), while being diabetic increased the risk of developing catheter related complications. One tenth of our patients with End Stage Renal Disease on TDC had kidney transplantation while catheter related mortality was 16.3%. Conclusion: internal jugular tunneled dialysis catheters despite its shortcomings, has been a safe procedure with good outcomes among our patients on maintenance haemodialysis.Item Assessment of iron deficiency anaemia and its risk factors among adults with chronic kidney disease in a tertiary hospital in Nigeria(2021) Raji, Y.R.; Ajayi, S.O.; Gbadegesin, B.A.; Bello, T.O.; Salako, B.L.A substantial proportion of patients with chronic kidney disease (CKD) develop iron deficiency anaemia (IDA). Despite the association of IDA with adverse cardiovascular outcomes, it remains underdiagnosed and poorly managed. Up to 70% of patients with CKD are anaemic at the time of initiating dialysis, while the predictors of IDA in these patients in our setting are unknown. This study aimed to determine the prevalence and risk factors for IDA in patients with CKD. Materials and Methods: This is a case–control study of 157 patients with CKD and 157 age and gender matched subjects without CKD. Information obtained from the participants were socio demographic details, aetiology of CKD, medication history and features of IDA. All participants had serum ferritin, total iron binding capacity (TIBC), transferrin saturation (TSAT), highly sensitive C reactive protein, serum creatinine and complete blood count determined. Results: The median estimated glomerular rate (22.7 [3.4–59.5] vs. 110.2 [60.3–152.8] ml/min/1.73 m2 , P < 0.01), the mean haemoglobin concentration (9.3 ± 2.6 vs. 11.4 ± 1.7 g/dl, P < 0.01), and TSAT (27.9% ± 6.4% vs. 34.8% ± 8.1%, P < 0.04) were significantly lower in patients with CKD. The mean age, serum ferritin and TIBC were similar in both groups. The prevalence of absolute (24.8% vs. 13.4%, P < 0.01) and relative (17.8% vs. 7.6%, P < 0.01) iron deficiencies were higher among individuals with CKD compared to the controls. Female gender (odd ratio [OR]:1.50, 95% confidence interval [CI]:1.0267–4.1163, P < 0.04) and severity of CKD (OR: 3.43, 95% CI: 1.5568–7.8324, P < 0.02) were independently associated with IDA. Conclusion: IDA is common among individuals with CKD while female gender and severity of CKD were factors that independently predicted IDAItem Challenges facing the growth of kidney transplantation in nigeria: perceptions and knowledge of the nephrologists and other health-care providers(2021) Raji, Y.R.; Ajayi, S.O.; Gbadegesin, B.A.; Bello, T.O.; Salako, B.L.Objective: The objective of this study was to determine the perception and knowledge of health-care providers to the challenges of sustaining the growth of kidney transplantation programs in Nigeria. Materials and Methods: We conducted a survey of 166 health-care providers. A pretested questionnaire was administered on all participants. Information obtained were demographics, characteristics of end-stage renal disease (ESRD) patients, and prospective kidney donors encountered and perception of the barriers to the growth of kidney transplantation program. Results: The respondents returned 134 questionnaires out of 166 (response rate: 80.7%) and only 121 with complete responses were included in the analysis. The mean age was 42.5 ± 0.8 years and 47.9% were females. A quarter of the health-care providers encountered ESRD patients who were more likely to refuse kidney transplantation and 34.1% reported that most of the prospective kidney donors were unwilling to donate. Most of the health care professionals (71.1%) preferred centers outside Nigeria for their patient’s kidney transplantation, while three leading barriers to the growth of kidney transplantation program reported were lack of patients’ trust (58.8%), failure of inter-program collaborations (55.0%), and absent of governmental supports (48.1%). Conclusions: The health-care professionals reported that more than a third of ESRD patients were not likely to accept kidney transplantation and an equal proportion of prospective donors will not agree to kidney donation. Majority of the health care professionals preferred centers outside Nigeria for patients’ kidney transplantation.Item Prevalence of dyslipidemia in normoglycemic subjects with newly diagnosed high blood pressure in Abuja, Nigeria.(2009) Ojji, D.B.; Ajayi, S.O.; Manmak, H. M.; Atherthon J.The H3Africa Consortium (2014). Enabling the Genomic Revolution In Africa. American Association for the Advancement of Science: . 1346-1348pp. ISBN: 1612309842 (United States of America ) (Contribution : 20%) h. Background: High blood pressure and dyslipidemia additively increases the risk of cardiovascular disease. There is a high prevalence of high blood pressure in Nigeria, but there are little data regarding the prevalence of dyslipidemia in subjects with high blood pressure. OBJECTIVE: In this observational prospective study, we examined the prevalence of dyslipidemia in newly diagnosed normoglycemic subjects with high blood pressure. Methods: A total of 171 subjects presenting with high blood pressure for the first time in the cardiology and nephrology clinics at the University of Abuja Teaching Hospital were studied. Height, weight, and blood pressure were measured. Total cholesterol, low-density lipoprotein cholesterol (LDL-C), and high-density lipoprotein cholesterol (HDL-C) were determined in fasting plasma. The total cholesterol/HDL-C and non–HDL-C values were calculated. These measures were then classified according to the 2001 report of the National Cholesterol Education Program (NCEP) Expert Panel on Detection, Evaluation and Treatment of High Blood Cholesterol in Adults. RESULTS: Of the 171 subjects studied, 84 (49%) were male and 87 (51%) were female. Low HDL-C was present in 71 (45.8%), elevated LDL-C in 29 (17%), elevated total cholesterol in 19 (11.1%), and elevated triglyceride in 13 (7.6%), whereas eight (4.7%) of the study population had combined elevated total cholesterol and triglyceride. Female subjects had higher total cholesterol and lower HDL-C than male subjects, but these differences were not statistically significant. Obese subjects, compared to the nonobese, had significantly higher LDL-C and total cholesterol/HDL-C ratios in males and significantly higher triglyceride levels in females. Conclusions: Given the prevalence of dyslipidemia seen in this study, we suggest that fasting lipid measurements should be performed in all Nigerians with high blood pressure. These data suggest the need for health education and lifestyle modifications in hypertensive Nigerians to reduce both types of risk factors.