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Modulation of the benzene metabolite hydroquinone induced toxicity: evidence for an important role of fau

Inayat-Hussain SH, Ibrahim HA, Siew EL, Rajab NF, Chan KM, G T Williams, et al.

Chem Biol Interact, 2010 Mar 19;184(1-2):310-2.
PMID: 20025857 DOI: 10.1016/j.cbi.2009.12.009
The Effect of Periodontitis on Fibroblast Growth Factor 23 Levels in Predialysis Chronic Kidney Disease Patients

Wan Abdul Azim WA, Kassim NK, Taib H, Abdullah NH, Che Abdul Aziz NA, Ibrahim HA

Cureus, 2024 Jul;16(7):e65166.
PMID: 39176315 DOI: 10.7759/cureus.65166

Introduction Chronic kidney disease (CKD) is known to cause an increase in fibroblast growth factor 23 (FGF23). Periodontitis, a condition recognized as a risk factor for CKD, is also potentially associated with the increment of FGF23. This study aims to compare FGF23 levels in CKD patients with and without periodontitis and non-CKD patients with and without periodontitis. Correlation with serum phosphate, calcium, and intact parathyroid hormone (iPTH) was assessed. Additionally, associations between FGF23, calcium, phosphate, iPTH, creatinine, urea, plaque score, and bleeding score with periodontitis in CKD patients were determined. Method A total of 124 participants were categorized into four groups: CKD patients with periodontitis (n=31), CKD patients without periodontitis (n=32), periodontitis patients without CKD (n=32), and healthy population (n=29). The selected CKD patients include those from stages 3 and 4 (predialysis) patients. Serum levels of FGF23, calcium, phosphate, iPTH, creatinine, and urea were analyzed. Oral examinations were conducted to determine the presence and absence of periodontitis and assess plaque and bleeding scores. Result A significantly higher level of FGF23 was found in CKD compared to non-CKD groups; however, no difference was observed with the presence of periodontitis in both CKD and non-CKD. There was no significant correlation found between FGF23 and serum calcium, phosphate, or iPTH concerning periodontal status. Apart from the bleeding score, there was no association between FGF23, calcium, phosphate, iPTH, creatinine, urea, and plaque score with the presence of periodontitis in CKD patients. Conclusion The presence of periodontitis was not associated with higher FGF23 levels in CKD patients. Changes in FGF23, calcium, phosphate, iPTH, creatinine, urea, and plaque score could not be attributed to the presence of periodontitis in CKD patients.
Fulltext Periodontal Health of Pre-Dialysis Chronic Kidney Disease Patients in a Northeast Peninsular Malaysia Tertiary Hospital

Ibrahim HA, Kassim NK, Jamsari FZ, Zainuddin SLA, Hanafi MH, Adnan AS

Malays J Med Sci, 2020 Feb;27(1):106-114.
PMID: 32158350 MyJurnal DOI: 10.21315/mjms2020.27.1.11

Introduction: Chronic kidney disease (CKD) is associated with periodontal disease due to its hyperinflammatory state. Limited studies have explored the prevalence of periodontal disease among CKD patients in Malaysia.
Objective: To assess the periodontal status of pre-dialysis CKD patients in Hospital Universiti Sains Malaysia.
Methods: A total of 46 pre-dialysis CKD patients who attended the nephrology clinic at Hospital Universiti Sains Malaysia were enrolled in this study. Periodontal examination was performed using the periodontal probing depth (PPD), clinical attachment loss (CAL) and plaque index.
Results: The majority of the CKD patients were Malay (95.7%) and 80.4% were males. The mean age of the patients was 58.5 years. Using PPD measurement, 37 (74.0%) of the patients had mild periodontitis, 9 (20.0%) had moderate periodontitis and 3 (6.0%) had no periodontitis. Based on CAL measurement, 12 (26%) patients had mild periodontitis, 29 (63.0%) had moderate periodontitis and 5 (11%) had severe periodontitis. The mean (standard deviation [SD]) value of mild and moderate-to-severe periodontitis by PPD measurement were 4.26 (0.26) and 5.24 (0.36), respectively. The mean of mild and moderate-to-severe periodontitis by CAL measurement were 2.66 (0.62) and 4.98 (0.73), respectively. There was no correlation between the periodontal parameters and estimated glomerular filtration rate (PPD: r = -0.160, P = 0.914; CAL: r = -0.135, P = 0.372; plaque index: r = 0.005, P = 0.974).
Conclusion: This study revealed a greater prevalence and severity of chronic periodontitis among CKD patients. Thus, the periodontal health of CKD patients' needs to be screened and monitored.
Fulltext Potential Effects of Non-Surgical Periodontal Therapy on Periodontal Parameters, Inflammatory Markers, and Kidney Function Indicators in Chronic Kidney Disease Patients with Chronic Periodontitis

Chaudhry A, Kassim NK, Zainuddin SLA, Taib H, Ibrahim HA, Ahmad B, et al.

Biomedicines, 2022 Oct 29;10(11).
PMID: 36359271 DOI: 10.3390/biomedicines10112752

Chronic kidney disease (CKD) and chronic periodontitis (CP) contribute to the increased level of inflammatory biomarkers in the blood. This study hypothesized that successful periodontal treatment would reduce the level of inflammatory biomarkers in CKD patients. This prospective study recruited two groups of CP patients: 33 pre-dialysis CKD patients and 33 non-CKD patients. All patients underwent non-surgical periodontal therapy (NSPT). Their blood samples and periodontal parameters were taken before and after six weeks of NSPT. The serum level of high-sensitivity C-reactive protein (hs-CRP), interleukin 6 (IL-6), and periodontal parameters were compared between groups. On the other hand, kidney function indicators such as serum urea and estimated glomerular filtration rate (eGFR) were only measured in CKD patients. Clinical periodontal parameters and inflammatory markers levels at baseline were significantly higher (p < 0.05) in the CKD group than in the non-CKD group and showed significant reduction (p < 0.05) after six weeks of NSPT. CKD patients demonstrated a greater periodontitis severity and higher inflammatory burden than non-CKD patients. Additionally, CKD patients with CP showed a good response to NSPT. Therefore, CKD patients’ periodontal health needs to be screened for early dental interventions and monitored accordingly.
African neuroscience on the global stage: Nigeria as a model

Maina MB, Mohammed YG, Bukar AM, Ahmad U, Tijjani Salihu A, Ibrahim HA, et al.

Eur J Neurosci, 2019 06;49(12):1544-1551.
PMID: 30758873 DOI: 10.1111/ejn.14372

Of the 572 neuroscience-related studies published in Nigerian from 1996 to 2017, <5% used state-of-the-art techniques, none used transgenic models, and only one study was published in a top-tier journal.
Fulltext Two decades of neuroscience publication trends in Africa

Maina MB, Ahmad U, Ibrahim HA, Hamidu SK, Nasr FE, Salihu AT, et al.

Nat Commun, 2021 Jun 08;12(1):3429.
PMID: 34103514 DOI: 10.1038/s41467-021-23784-8

Neuroscience research in Africa remains sparse. Devising new policies to boost Africa's neuroscience landscape is imperative, but these must be based on accurate data on research outputs which is largely lacking. Such data must reflect the heterogeneity of research environments across the continent's 54 countries. Here, we analyse neuroscience publications affiliated with African institutions between 1996 and 2017. Of 12,326 PubMed indexed publications, 5,219 show clear evidence that the work was performed in Africa and led by African-based researchers - on average ~5 per country and year. From here, we extract information on journals and citations, funding, international coauthorships and techniques used. For reference, we also extract the same metrics from 220 randomly selected publications each from the UK, USA, Australia, Japan and Brazil. Our dataset provides insights into the current state of African neuroscience research in a global context.