Correlation of Level of Serum 25-Hydroxy Vitamin D and Gleason Score as a Measure of Aggressiveness of Prostate Cancer in Black Africans


Authors : Julius O Akhaine; Venyir M Ramyil; Nuhu K Dakum; Christian O Isichei; Samaila I Shuaibu; Chimaobi G Ofoha

Volume/Issue : Volume 8 - 2023, Issue 9 - September

Google Scholar : https://bit.ly/3TmGbDi

Scribd : https://tinyurl.com/27xyds4u

DOI : https://doi.org/10.5281/zenodo.8383265

Abstract : Background Cancer of the prostate (CaP) is the second most commonly diagnosed cancer worldwide and the sixth leading cause of death from cancer in males. . Black men of African descent have higher risk for developing prostate cancer and are most likely to present at a younger age with more advanced disease and a poorer disease prognosis. Objective To determine if there is a relationship between the level of serum 25 hydroxy vitamin D and aggressiveness of prostate cancer using the Gleason score in black Africans in Jos. Methods A cross sectional study conducted among fifty patients presenting at the urological surgical out-patient clinics of the Jos University Teaching Hospital who were evaluated to have a clinical diagnosis of prostate cancer and scheduled for prostate biopsy. Blood samples for serum 25-hydroxy vitamin D were assayed using the ELISA technique, prostate biopsy was done and only those histologically confirmed to be prostate cancer were analysed. Data was collected using a proforma with statistical analysis done using SPSS(R) version 23 and Spearman’s rank correlation test used with a p-value < 0.05 considered significant. Results Fifty patients with histologically proven prostate cancer was studied whose age ranged from 50-89 years with a predominant age group 70-79 years (70.0±7.9).The mean level of serum 25-hydroxy vitamin D was 37.90ng/ml±17.92. All patients in the study had adenocarcinoma as the histologic type with a mean Gleason score of 9.36±13.14. A Spearman’s rank order correlation was statistically significant (rs (50) = -0.423, p = 0.002). Conclusion A Spearman’s rank order correlation shows a moderate negative correlation between the serum 25- hydroxy vitamin D and Gleason score (rs (50) = -0.423, p = 0.002.Thus, serum 25-hydroxy vitamin D assay can be used to prognosticate in patients with cancer of the prostate.

Keywords : Serum 25-Hydroxy Vitamin D, Prostate Cancer, Gleason Score

Background Cancer of the prostate (CaP) is the second most commonly diagnosed cancer worldwide and the sixth leading cause of death from cancer in males. . Black men of African descent have higher risk for developing prostate cancer and are most likely to present at a younger age with more advanced disease and a poorer disease prognosis. Objective To determine if there is a relationship between the level of serum 25 hydroxy vitamin D and aggressiveness of prostate cancer using the Gleason score in black Africans in Jos. Methods A cross sectional study conducted among fifty patients presenting at the urological surgical out-patient clinics of the Jos University Teaching Hospital who were evaluated to have a clinical diagnosis of prostate cancer and scheduled for prostate biopsy. Blood samples for serum 25-hydroxy vitamin D were assayed using the ELISA technique, prostate biopsy was done and only those histologically confirmed to be prostate cancer were analysed. Data was collected using a proforma with statistical analysis done using SPSS(R) version 23 and Spearman’s rank correlation test used with a p-value < 0.05 considered significant. Results Fifty patients with histologically proven prostate cancer was studied whose age ranged from 50-89 years with a predominant age group 70-79 years (70.0±7.9).The mean level of serum 25-hydroxy vitamin D was 37.90ng/ml±17.92. All patients in the study had adenocarcinoma as the histologic type with a mean Gleason score of 9.36±13.14. A Spearman’s rank order correlation was statistically significant (rs (50) = -0.423, p = 0.002). Conclusion A Spearman’s rank order correlation shows a moderate negative correlation between the serum 25- hydroxy vitamin D and Gleason score (rs (50) = -0.423, p = 0.002.Thus, serum 25-hydroxy vitamin D assay can be used to prognosticate in patients with cancer of the prostate.

Keywords : Serum 25-Hydroxy Vitamin D, Prostate Cancer, Gleason Score

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