Objective:This study aims to evaluate the subcortical structural alteration patterns associated with five distinct neuropsychiatric symptoms (NPS) associated with Parkinson′s disease and provide macroscopic brain structural evidence to further explore their underlying pathophysiological mechanism.Methods:Clinical data and 3D-T 1 weighted images from 505 patients with Parkinson′s disease and 167 age-and sex-matched healthy controls were obtained from the Parkinson′s Progression Markers Initiative database (July 2010-August 2022). The subcortical nucleus volumes of the overall NPS patient group, as well as subgroups of patients with specific NPS subtypes (depression, anxiety, apathy, impulsive-compulsive behaviors (ICBs), and hallucinations), were measured and compared to those of healthy controls through mixed-effects models. Spatial similarity analysis and hierarchical clustering analysis of subcortical volume alteration patterns were employed to investigate the commonalities and specificities of subcortical damage in NPS. Results:NPS patients exhibited widespread subcortical atrophy, primarily concentrated in the bilateral putamen, bilateral hippocampus, and left amygdala (Cohen′s d=-0.38--0.12, FDR P<0.05). Subgroup analysis revealed that anxiety and depression were associated with gray matter atrophy in the bilateral putamen and amygdala (Cohen′s d=-0.73--0.32, FDR P<0.05), while apathy, hallucinations, and ICBs were linked to atrophy in the bilateral putamen, bilateral amygdala, and bilateral hippocampus (Cohen′s d=-0.61--0.11, FDR P<0.05,Cohen′s d=-0.43--0.36, P<0.05). Similarity and clustering analyses demonstrated high spatial correlation between anxiety and depression ( r=0.83, P<0.01), forming one cluster, whereas apathy, hallucinations, and ICBs formed another distinct cluster. Conclusion:NPS in Parkinson′s disease exhibit both commonalities and specificities. Apathy, hallucinations, and ICBs are associated with more severe subcortical damage patterns. These findings may provide new insights into the pathophysiology and progression of Parkinson′s disease.

Objective:This study aims to evaluate the subcortical structural alteration patterns associated with five distinct neuropsychiatric symptoms (NPS) associated with Parkinson′s disease and provide macroscopic brain structural evidence to further explore their underlying pathophysiological mechanism.Methods:Clinical data and 3D-T 1 weighted images from 505 patients with Parkinson′s disease and 167 age-and sex-matched healthy controls were obtained from the Parkinson′s Progression Markers Initiative database (July 2010-August 2022). The subcortical nucleus volumes of the overall NPS patient group, as well as subgroups of patients with specific NPS subtypes (depression, anxiety, apathy, impulsive-compulsive behaviors (ICBs), and hallucinations), were measured and compared to those of healthy controls through mixed-effects models. Spatial similarity analysis and hierarchical clustering analysis of subcortical volume alteration patterns were employed to investigate the commonalities and specificities of subcortical damage in NPS. Results:NPS patients exhibited widespread subcortical atrophy, primarily concentrated in the bilateral putamen, bilateral hippocampus, and left amygdala (Cohen′s d=-0.38--0.12, FDR P<0.05). Subgroup analysis revealed that anxiety and depression were associated with gray matter atrophy in the bilateral putamen and amygdala (Cohen′s d=-0.73--0.32, FDR P<0.05), while apathy, hallucinations, and ICBs were linked to atrophy in the bilateral putamen, bilateral amygdala, and bilateral hippocampus (Cohen′s d=-0.61--0.11, FDR P<0.05,Cohen′s d=-0.43--0.36, P<0.05). Similarity and clustering analyses demonstrated high spatial correlation between anxiety and depression ( r=0.83, P<0.01), forming one cluster, whereas apathy, hallucinations, and ICBs formed another distinct cluster. Conclusion:NPS in Parkinson′s disease exhibit both commonalities and specificities. Apathy, hallucinations, and ICBs are associated with more severe subcortical damage patterns. These findings may provide new insights into the pathophysiology and progression of Parkinson′s disease.

OBJECTIVE: To investigate the effects of subacute systemic inhalation exposure of 1,2-dichloroethane(1,2-DCE) on learning and memory in NIH mice. METHODS: Forty-five specific pathogen free healthy 7-week-old NIH mice were randomly divided into control,low-dose and high-dose groups with 5 female mice and 10 male mice in each group. The mice were exposed to 1,2-DCE at dosages of 0. 00,100. 00 and 350. 00 mg/m3 for 6 hours per day for consecutive 28 days by dynamic systemic inhalation. The neurobehavioral tests of mice were performed before and after the first to fourth weeks of exposure using the Morris water maze test. RESULTS: There was no significant difference in body weight and swimming speed among the three groups of mice( P > 0. 05). The navigation experiment results showed that the escape latency of mice in both low-and high-dose groups were longer than that of the control group at the same time point(P < 0. 05) during 1-4 weeks after exposure. In the control group,the escape latency was shorter than that of the same group before exposure( P < 0. 05). The escape latency of high-dose group prolonged with the increase of exposure time,and in the 4 th week the escape latency was significantly higher than that of the same group before exposure( P < 0. 05).The experiment results of space exploration indicated that the first time of crossing platform in low-and high-dose groups were longer than that of the control group at the second to the fourth week( P < 0. 05). The target quadrant retention time and the number of crossing the platform in the low-and high-dose groups were lower than those in the control group( P <0. 05). CONCLUSION: Subacute inhalation exposure of 1,2-DCE can impair the learning and memory ability of NIH mice.The high-dose exposure may reduce learning ability in mice in a time-effect manner.

OBJECTIVE: To explore the application effect of clinical nursing pathway( CNP) in nursing care on patients with occupational noise-induced deafness( ONID) under medical observation.METHODS: The patients with ONID under medical observation in hospital were randomly selected and divided into CNP group( 50 cases) and control group( 50 cases) by random number table method.The control group was given routine nursing care,and the CNP group was given CNP care according to the nursing path table.Self-Rating Anxiety Scale,Self-rating Depression Scale and SF-36 Scale were used to observe the anxiety, depression and quality of life of these two groups.The time and expenses of hospitalization,and degree of nursing satisfaction were also observed.RESULTS: Before nursing care implementation,the scores of anxiety,depression and 8 dimension of quality of life did not show statistical significance between these two groups( P > 0.05).After nursing care implementation,the improvement of anxiety,depression and quality of life in the CNP group were significantly better than that of the control group( P < 0.01).The patients in the CNP group had shorter duration of hospitalization( P < 0.01),decreased hospitalization expenses( P < 0.05),and increased nursing satisfaction( P < 0.01) compared with the control group.CONCLUSION: CNP implementation can effectively reduce the anxiety and depression symptoms of patient with ONID under medical observation during the diagnostic process of occupational diseases.It can reduce the time and costs of hospitalization,improve their quality of life and satisfaction of nursing care.CNP can be widely used in clinical practice.

OBJECTIVE: To investigate the effect of health education in the treatment of pneumoconiosis patients with bronchoalveoar lavage( BAL) during perioperative period. METHODS: Ninety-six pneumoconiosis patients treated with BAL in hospital were divided into observation group and control group( 48 cases in each group). The patients in the control group were given routine perioperative health education, and the patients in the observation group implemented perioperative health education in accordance with the health education pathway. Adverse reactions in hospital were collected,and the awareness of perioperative health knowledge of BAL was surveyed. RESULTS: Before implement of the health education pathway,there was no difference( P > 0. 05) in the health knowledge between the 2 groups. After implementation of the health education pathway,the awareness of health knowledge of observation group and control group were higher than that of the same group before implementation of the health education pathway( P < 0. 01). The awareness of 15 items of health knowledge was higher( P < 0. 05) and the incidences of intraoperative cough and postoperative low fever were lower in the observation group than in the control group( 4. 2% vs 25. 0%,2. 1% vs 16. 7%,P < 0. 05).CONCLUSION: Executing effective healthy education pathway in perioperative BAL is helpful to improve the knowledge of disease prevention and control in pneumoconiosis patients,and reduce the occurrence of adverse reactions during BAL.