This research tried improving the specificity and efficiency of gene transfection in gene therapy and tried making the liposome a better gene transfer vector to brain by use of the monoclonal antibody (anti-Lex/SSEA-1)-mediated targeting of liposome. The derivatized monoclonal antibody was conjugated to the liposome DOSPER to form the targeting liposome P-MMA-DOSPER. Then, the pEGFP-C2 encapsulated in P-MMA-DOSPER or DOSPER was injected into the lateral ventricle of SD rats respectively, and the brains were taken for frosted slice 1, 3, 7 or 14 days later. The expression of GFP was observed under fluorescent microscope. There was a lot of expression of GFP around the lateral ventricle of rats in each group. But the indirect fluorescence antibody test showed the ratio of GFP+/nestin+ cells to nestin+ cells of every marking time point in the group of P-MMA-DOSPER was higher than the one in the group of DOSPER; the difference was found to be statistically significant (P<0.01). The results proved that the P-MMA-DOSPER can permeat the ependyma and can transfer gene into the nerve stem cells in vivo safely and effectively.
Animals ; Antibodies, Monoclonal ; metabolism ; Brain ; metabolism ; Fatty Acids, Monounsaturated ; metabolism ; Female ; Gene Transfer Techniques ; Genetic Vectors ; genetics ; metabolism ; Green Fluorescent Proteins ; genetics ; metabolism ; Liposomes ; Male ; Polymethyl Methacrylate ; metabolism ; Rats ; Rats, Sprague-Dawley ; Transfection

Objective To explore the role of deep brain stimulation of subthalamic nucleus (STN-DBS) in treatment of Parkinson's disease (PD) related neuroleptic malignant syndrome (NMS).Methods The medical history,clinical features,STN-DBS programmed treatment process and treatment results of two patients admitted to our hospital in December 2014 and November 2018 were retrospectively analyzed.Results Two patients with post-operative STN-DBS were evoked by dose-reduced treatment of anti-parkinsonian drugs,and presented with high fever,disorder of consciousness,aggravation of the original parkinsonism,and increase of creatine phosphokinase,which were not correlated with outcomes of infection.After admission,anti-parkinsonian drugs and other supportive therapies were supplemented;STN-DBS modulation were given to improve the symptoms;the final parameters of patient one were the left (C+,2-,1-),pulse width 110 μs,frequency 200 Hz,and strength 3.8 V;the right side (C+,6-,5-),pulse width 110 μs,frequency 200 Hz,strength 4.4 V;and those of patient two were the left (C+,3-),pulse width 60 μs,frequency 130 Hz,strength 2.0 V;right side (C+,6-),pulse width 80 μs,frequency 160 Hz,and strength 2.8 V.Both patients were cured,but their motor function and self-care ability were severely impaired.Conclusion STN-DBS may play an important role in the treatment of PD related NMS.

OBJECTIVE: To observe the effectiveness of acupuncture on claustrophobia, and to explore the effects of acupoint specificity on claustrophobia. METHODS: This was an evaluator-blinded randomized controlled trial. One hundred and sixty patients who presented with claustrophobia during magnetic resonance imaging examination were randomized into an acupoint group, a non-acupoint group, a sham-acupoint group and a blank group, 40 cases in each one. The patients in the acupoint group were treated with acupuncture at Zhaohai (KI 6), Taichong (LR 3), Lingdao (HT 4), Neiguan (PC 6), Shenmen (HT 7), Danzhong (CV 17), Baihui (GV 20) and Fengchi (GB 20). The patients in the non-acupoint group were treated with acupuncture at points 0.5 next to the acupoints above. The patients in the sham-acupoint group were treated with acupuncture at acupoints not closely correlated to claustrophobia in corresponding segment. All the acupuncture was given once. No treatment was used in the blank group. The state anxiety questionnaire (S-AI) was observed in all the patients at the end of MRI examination before and after treatment. The clinical therapeutic effects were compared among four groups. RESULTS: Compared before treatment, the S-AI score was reduced in the acupoint group, non-acupoint group and sham-acupoint group after treatment (<0.05, <0.01); the differences of S-AI score before and after treatment in the blank group were not statistically significant (>0.05). After treatment, the S-AI scores in the acupoint group, non-acupoint group and sham-acupoint group was lower than that in the blank group (<0.05, <0.01), and the differences of S-AI score were higher than that in the blank group (<0.01). The S-AI score in the acupoint group was lower than that in the non-acupoint group and sham-acupoint group (<0.05), and the difference of S-AI score was higher than those in the non-acupoint group and sham-acupoint group (<0.05). The difference of S-AI score in the non-acupoint group was higher than that in sham-acupoint group (<0.05). The total effective rate was 92.5% (37/40) in the acupoint group, which was significantly superior to 25.0% (10/40) in the non- acupoint group, 17.5% (7/40) in the sham-acupoint group and 5.0% (2/40) in the blank group (<0.05, <0.01). CONCLUSION Acupuncture showes superior effect on claustrophobia, and its tranquilizing effect may be related with acupoint specificity.
Acupuncture Points ; Anxiety ; Humans ; Phobic Disorders ; therapy ; Surveys and Questionnaires