Variation of Cortical Structures of Frontal Lobes in Different Sudanese Tribes
Author(s): Wegdan Ahmed, Tahir Osman Ali, Bunyamin Sahin, Samy Ismail, Mohammed H Karrar Alsharif* and Amani Elfaki
Abstract
Background: To date, there is no study has addressed the effect of race on cortical thickness (CT), cortical area pial (CAP), and the surface fraction of cortical area pial (SFCAP). The present study aimed to provide an overview about similarities and differences in CT, CAP, and SFCAP of the hemisphere, frontal lobe, and frontal lobe gyri between males and females of Sudanese tribes. Methodology: The present study included 139 healthy Sudanese subjects (80 males and 59 females); their ages ranged between 20 and 40 years. The subjects were assigned to six tribes: Jaalayin, Juhyna “1”; Nubians, Beja, Juhyna “2”; and Non-Arabian tribes. T1-weighted MR brain images with a thickness of 1mm were obtained. MR images of the subjects were analyzed using the automatic segmentation software (BrainSuite). CT, CAP, and SFCAP of the hemisphere, frontal lobe, and frontal lobe gyri were estimated using the output data of the process of software. Result: CT of the hemisphere, frontal lobe, and frontal lobe gyri were not significantly different between Sudanese tribes. CAP of the hemisphere, frontal lobe, cingulate gyrus, superior frontal gyrus, precentral gyrus, pars orbitalis, pars orbitalis, orbitofrontal gyri, and middle frontal gyrus; were significantly different between Sudanese tribes. SFCAP of the cerebral hemispheres, frontal lobes, and most frontal lobe gyri were not significantly different between Sudanese tribes, while precentral, middle frontal gyrus, and pars triangularis were significantly different between Sudanese tribes. Conclusion: CT and SF-CAP were not different between Sudanese tribes, while CAP was different between Sudanese tribes.