ABSTRACT Background: The effect of repeated blood donation on some biochemical values of healthy adult male blood donors in Calabar, Nigeria was studied. Methods: One hundred and fifty three (153) healthy repeat blood donors and 90 first time blood donors constituted the study population. Samples were analyzed using colorimetric procedures. Results: The BMI values of 24.4 ± 2.4 kg/ m2 in the first time donors was significantly higher than the 21.7 ± 1.7 kg/m2 obtained in repeat donors (P < 0.001). Among all the biochemical parameters, total cholesterol showed a significant change of 2.55 ± 0.74 mmol/l after repeated donations as compared to 3.45 ± 1.47 mmol/l in the first time donors (P < 0.005). Gamma glutamyl transferase (GGT) was significantly higher in repeat donors (70.5 ± 13.5 μl) than the first time donors (62.5 ± 13.3 μl) (P < 0.05). An LDL value of 1.02 ± 0.8 mmol/l in repeat donors was significantly lower than 1.69 ± 1.0 mmol/l in first time donors (P < 0.05). A VLDL value of 0.32 ± 0.2 mmol/l in repeat donors was equally lower than 0.44 ± 0.2 mmol/l obtained in the first time donors (P < 0.05). GGT showed positive correlation with lactate dehydrogenase (LDH) and low density lipoproteins (LDL) at P < 0.05 and P < 0.01 respectively among the repeat blood donors. Triglycerides showed a positive correlation with very low density lipoprotein (VLDL) among repeat donors at P < 0.05 significant level. Pearson correlation analysis also indicates that a significant positive relationship exists between GGT and low density lipoprotein (r = 0.891, P < 0.001). The regression analysis defined the relationship as linear (y = 0.0578x + 36.87; r2 = 0.7934, P < 0.05). Conclusion: A reduction in the values of some lipid profiles and high GGT activity is associated with repeated blood donations in this study population. Repeated blood donation may play a significant role in reducing the incidence of heart disease.
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T. Adias, A. Igwilo and Z. Jeremiah, "Repeat Whole Blood Donation Correlates Significantly with Reductions in BMI and Lipid Profiles and Increased Gamma Glutamic Transferase (GGT) Activity among Nigerian Blood Donors," Open Journal of Blood Diseases, Vol. 2 No. 4, 2012, pp. 90-94. doi: 10.4236/ojbd.2012.24017.
 H. Khedmat, F. Fallahian, H. Abolghasemi, B. Hajibeigi, Z. Attarchi, F. Alaeddini, M. T. Holisaz, M. Pourali, S. Sharifi and N. Zarei, “Serum G-Glutamyltransferase, Alanine Aminotransferase and Aspartate Aminotransferase Activity in Iranian Healthy Blood Donor Men,” World Journal of Gastroenterology, Vol. 13, No. 6, 2007, pp. 889-894.
 G. N. Ioanou, E. J. Boyko and S. P. Lee, “The Prevalence and Predictors of Elevated Serum Aminotransferase Activity in the United States in 1999-2002,” American Journal of Gastroenterology, Vol. 101, No. 1, 2006, pp. 76-82. HUdoi:10.1111/j.1572-0241.2005.00341.xU
 R. S. Bharadwaj, “A Study of Lipid Profiles among Male Voluntary Blood Donors in Chennai City,” Indian Journal of Community Medicine, Vol. 30, No. 1, 2005, pp. 1-5.
 T. Pekka and R. Salonen, “Cohort Study of Relationship between Donating Blood and the Risk of Myocardial Infarction,” British Medical Journal, Vol. 314, No. 7083, 1997, pp. 793-794. HUdoi:10.1136/bmj.314.7083.793U
 A. Gebre-Yohannes, S. I. Rehelbeck, “Coronary Heart Disease Risk Factors among Blood Donors in North West Ethiopia,” East African Medical Journal, Vol. 75, No. 9, 1998, pp. 495-500.
 G. Aragon and Z. M. Younossi, “When and How to Evaluate Mildly Elevated Liver Enzymes in Apparently Healthy Patients,” Cleveland Clinic Journal of Medicine, Vol. 77, No. 3, 2010, pp. 195-204.
 C. A. Burtis and E. R. Ashwood, “Tietz Fundamentals of Clinical Chemistry,” 5th Edition, WB Saunders, Philadelphia, 2001, pp. 463-493.
 M. Kravos and I. Malesic, “Kinetics and Isoforms of Serum Glutamate Dehydrogenase in Alcohols,” Alcohol and Alcoholism, Vol. 43, No. 3, 2007, pp. 281-286.
 J. B. Whitefield, “Gamma Glutamic Transferase,” Critical Reviews in Clinical Laboratory Science, Vol. 38, No. 4, 2001, pp. 263-355.
 G. Wu, Y. Z. Fang, S. Yang, J. R. Lupton and N. D. Turner, “Glutathione Metabolism and Its Implications for Health,” The Journal of Nutrition, Vol. 134, No. 3, 2004, pp. 489-492.
 G. Poelz, C. Eberl, H. Achrainer and H. Ulmer, “Prevalence of Elevated GGT and Prognostic Significance of GGT in Chronic Heart Failure,” Circulation and Heart Failure, Vol. 2, No. 4, 2009, pp. 294-302.
 Z. A. Jeremiah and B. B. Koate, “Anaemia, Iron Deficiency and Iron Deficiency Anaemia among Blood Donors in Port Harcourt, Nigeria,” Blood Transfusion, Vol. 8, No. 2, 2010, pp. 113-117.
 D. G. Meyers, D. Strickland, P. A. Maloley, J. K. Seburg, J. E. Wilson and B. F. McManus, “Possible Association of a Reduction in Cardiovascular Events with Blood Donation,” Heart, Vol. 78, No. 2, 1997, pp. 188-193.
 J. T. Salonen and T. P. Toumainnen, “Donating Blood Is Associated with Reduced Risk of Myocardial Infarction. The Kuopio Ischemic Heart Disease Risk Factor Study,” American Journal of Epidemiology, Vol. 148, No. 5, 1998, pp. 445-451. HUdoi:10.1093/oxfordjournals.aje.a009669U
 P. Giral, V. Ratziu and J. C. Chapman, “Letter Regarding Article by Ruttmann et al., ‘γ-Glutamyltransferase as a Risk Factor for Cardiovascular Disease Mortality: An Epidemiological Investigation in a Cohort of 163 944 Austrian Adults’,” Circulation, Vol. 113, No. 8, 2006, pp. e299-e300.
 G. Edgren, M. Reilly, H. Hjalgrim, J. Adami, K. Rostgarrd, A. Shanwell and M. Melbye, “Donation Frequency, Iron Loss and Risk of Cancer among Blood Donors,” Journal of the National Cancer Institute, Vol. 100, No. 8, 2008, pp. 572-579. HUdoi:10.1093/jnci/djn084U