PMID- 38052615 OWN - NLM STAT- MEDLINE DCOM- 20231207 LR - 20231216 IS - 1551-0018 (Electronic) IS - 1547-1063 (Linking) VI - 20 IP - 11 DP - 2023 Oct 25 TI - Aberrant intrinsic functional brain topology in methamphetamine-dependent individuals after six-months of abstinence. PG - 19565-19583 LID - 10.3934/mbe.2023867 [doi] AB - Our aim was to explore the aberrant intrinsic functional topology in methamphetamine-dependent individuals after six months of abstinence using resting-state functional magnetic imaging (rs-fMRI). Eleven methamphetamines (MA) abstainers who have abstained for six months and eleven healthy controls (HC) were recruited for rs-fMRI examination. The graph theory and functional connectivity (FC) analysis were employed to investigate the aberrant intrinsic functional brain topology between the two groups at multiple levels. Compared with the HC group, the characteristic shortest path length ($ L_p $) showed a significant decrease at the global level, while the global efficiency ($ E_glob $) and local efficiency ($ E_loc $) showed an increase considerably. After FDR correction, we found significant group differences in nodal degree and nodal efficiency at the regional level in the ventral attentional network (VAN), dorsal attentional network (DAN), somatosensory network (SMN), visual network (VN) and default mode network (DMN). In addition, the NBS method presented the aberrations in edge-based FC, including frontoparietal network (FPN), subcortical network (SCN), VAN, DAN, SMN, VN and DMN. Moreover, the FC of large-scale functional brain networks revealed a decrease within the VN and SCN and between the networks. These findings suggest that some functions, e.g., visual processing skills, object recognition and memory, may not fully recover after six months of withdrawal. This leads to the possibility of relapse behavior when confronted with MA-related cues, which may contribute to explaining the relapse mechanism. We also provide an imaging basis for revealing the neural mechanism of MA-dependency after six months of abstinence. FAU - Li, Xiang AU - Li X AD - First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan 250355, China. AD - Center for Medical Artificial Intelligence, Shandong University of Traditional Chinese Medicine, Qingdao 266112, China. AD - Qingdao Academy of Chinese Medical Sciences, Shandong University of Traditional Chinese Medicine, Qingdao 266112, China. FAU - Cong, Jinyu AU - Cong J AD - Center for Medical Artificial Intelligence, Shandong University of Traditional Chinese Medicine, Qingdao 266112, China. AD - Qingdao Academy of Chinese Medical Sciences, Shandong University of Traditional Chinese Medicine, Qingdao 266112, China. FAU - Liu, Kunmeng AU - Liu K AD - Center for Medical Artificial Intelligence, Shandong University of Traditional Chinese Medicine, Qingdao 266112, China. AD - Qingdao Academy of Chinese Medical Sciences, Shandong University of Traditional Chinese Medicine, Qingdao 266112, China. FAU - Wang, Pingping AU - Wang P AD - Center for Medical Artificial Intelligence, Shandong University of Traditional Chinese Medicine, Qingdao 266112, China. AD - Qingdao Academy of Chinese Medical Sciences, Shandong University of Traditional Chinese Medicine, Qingdao 266112, China. FAU - Sun, Min AU - Sun M AD - Shandong Detoxification Monitoring and Treatment Institute, Zibo 255311, China. FAU - Wei, Benzheng AU - Wei B AD - Center for Medical Artificial Intelligence, Shandong University of Traditional Chinese Medicine, Qingdao 266112, China. AD - Qingdao Academy of Chinese Medical Sciences, Shandong University of Traditional Chinese Medicine, Qingdao 266112, China. LA - eng PT - Journal Article PL - United States TA - Math Biosci Eng JT - Mathematical biosciences and engineering : MBE JID - 101197794 RN - 44RAL3456C (Methamphetamine) SB - IM MH - Humans MH - *Methamphetamine MH - Brain Mapping/methods MH - Brain/diagnostic imaging MH - Visual Perception MH - Recurrence OTO - NOTNLM OT - abstainers OT - functional connectivity OT - graph theory OT - mechanism OT - methamphetamine EDAT- 2023/12/06 03:43 MHDA- 2023/12/07 12:42 CRDT- 2023/12/05 21:37 PHST- 2023/12/07 12:42 [medline] PHST- 2023/12/06 03:43 [pubmed] PHST- 2023/12/05 21:37 [entrez] AID - 10.3934/mbe.2023867 [doi] PST - ppublish SO - Math Biosci Eng. 2023 Oct 25;20(11):19565-19583. doi: 10.3934/mbe.2023867.