1.MRI study on the cortical thickness of occipital lobe in children with ametropic amblyopia
Hanjian DU ; Jian WANG ; Chuan LI ; Jiuquan ZHANG ; Li CHEN ; Bo LIU
Chinese Journal of Radiology 2008;42(1):47-49
Objective To study cortical thickness of the occipital lobe in children with ametropic amblyopia by using MRI technique and the FreeSurfer software.MethOds Nine children with ametropic amblyopia were included in the amblyopic group and 8 normal children were included in the control group.All the children underwent brain MRI on the Siemens Avanto 1.5 T scanner.For the cortical thickness analysis,3-demensional MPRAGE images were collected and analyzed with FreeSurfer software package.Cortical thickness of related regions in the occipital lobe (including the cuneus,later occipital,lingual,and pericalcarine gyri) were recorded and compared. Results The cortical thickness of the lingual,pericalcarine gyri on the left hemisphere and the cuneus,lateraloccipital,lingual gyri on the right hemisphere in amblyopic group were lower than the control group (P<0.05). Conclusion Morphological changes existed in the occipital lobe in ametropic amblyopic children.The analysis technique with the FreeSurfer package has a potential value in the clinical application.
2.The Application of fMRI in brain surgery for the lesions in or around the Broca's area of brain
Nan WU ; Bing XIE ; Jiuquan ZHANG ; Chuan LAN ; Hanjian DU ; Guocai WU ; Jian WANG ; Hua FENG
Chinese Journal of Nervous and Mental Diseases 2010;36(1):34-38
Objective To evaluate the value of fMRI guided brain surgery for the lesions in or around Broca's area.Methods Forty-three patients with lesions in or adjacent to the Broca's area were studied.fMRI imaging was obtained by BOLD technique with the tasks of reciting.Fiber tract imaging of white matter was obtained by DTI technique.All functional imaging and anatomic imaging were transferred to neuronavigation system.The technique of direct cortical stimulation was used to validate the language cortex in fMRI.The lesions were resected in microscope.Results Broca's area activation was detected in 38 cases..The distance between the fMRI peak and direct cortical stimulation was rated as overlapping (<1 cm diatance) in 25 cases and neighbouring (<2 cm diatance) in 11 cases.Total lesion resection was achieved in 17 cases, subtotal resection in 14 cases, and partial resection in 12 cases.Postoperative neurological functions were improved in 8 cases, unchanged in 31 cases, and temporary worsen in 4 cases.Conclusions The identification of the Broca's area by reciting task in fMRI is sensitive and precise.The fMRI is helpful to decrease the side effect injury in the brain surgery for the lesions in or around the Broca's area.
3.Investigation on the influencing factors of perioperative patients with mania
Qinbin LIU ; Zhensong GAO ; Huaiyuan LAI ; Yanling HUANG ; Manfen LIU ; Hanjian. ZHANG
Chinese Journal of Primary Medicine and Pharmacy 2011;18(20):2745-2746
ObjectiveTo discuss the mental state and its influencing factors of perioperative patients with mania.Methods 40 perioperative mania patients were investigated with Bech-Rafaelsdn Mania Rating Scale (BRMS) and Life Event Scale(LES) ,assisted with self-designed influential factors to survey the correlation factors.ResultsThe perioperative patients were interestd in therapeutic correlation question preoperative and worry about their recovery after operation.The worry showed that operations was mental work load and psycho-burden to the patients.Perioperative patients' mental activities were main of perceptual insecurity.The psycho-feature must influence the compliance of mania patients' therapy and nursing.What follows next is the quality of therapy and nursing.ConclusionThe main problem to be solved is intervention the tension, anxiety, scare psychology of the patients in perioperative.At the same time it must be strengthened to talk to the family member of the patients knowledge about the disease and its recovery.
4. Mutation in ε-Sarcoglycan Induces a Myoclonus-Dystonia Syndrome-Like Movement Disorder in Mice
Jiao LI ; Yiqiong LIU ; Qin LI ; Xiaolin HUANG ; Dingxi ZHOU ; Hanjian XU ; Feng ZHAO ; Xiaoxiao MI ; Jing YANG ; Dong LIU ; Xuliang DENG ; Yan ZHANG ; Fan JIA ; Fuqiang XU ; Ruoxu WANG
Neuroscience Bulletin 2021;37(3):311-322
Myoclonus dystonia syndrome (MDS) is an inherited movement disorder, and most MDS-related mutations have so far been found in the ε-sarcoglycan (SGCE) coding gene. By generating SGCE-knockout (KO) and human 237 C > T mutation knock-in (KI) mice, we showed here that both KO and KI mice exerted typical movement defects similar to those of MDS patients. SGCE promoted filopodia development in vitro and inhibited excitatory synapse formation both in vivo and in vitro. Loss of function of SGCE leading to excessive excitatory synapses that may ultimately contribute to MDS pathology. Indeed, using a zebrafish MDS model, we found that among 1700 screened chemical compounds, Vigabatrin was the most potent in readily reversing MDS symptoms of mouse disease models. Our study strengthens the notion that mutations of SGCE lead to MDS and most likely, SGCE functions to brake synaptogenesis in the CNS.