1.In vitro studies of IgY against fusion VacA-HpaA protein of Helicobacter pylori
Cuilian YE ; Zhibang YANG ; Ji ZHANG ; Jin HUANG
Chinese Journal of Immunology 1985;0(02):-
Objective:Researching physical-chemic and biologic speciality of VacA-HpaA IgY,which provide a solid experimental basis for the preparation of vaccine against H.pylori infection.Methods:The purified antigen of fusion protein VacA-HpaA was used to immunize hens and the VacA-HpaA IgY was extracted from the yolk by water dilution methods.(1)After the VacA-HpaA IgY was purified by deposition technique with ammonium sulfate,the purity of IgY was analyzed by SDS-PAGE,and protein content of IgY was analyzed by Bradford method.(2)The indirect ELISA was used to detect its heat-stability,acid-stability and pepsin-stability.(3)The specificity of VacA-HpaA IgY to the antigens was identified by Western blot.(4)MTT was applied to assay the neutralization of VacA-HpaA IgY to The cytotoxity of H.pylori.(5)The neutralization of IgY to AGS cells was observed with scanning electron microscopy(SEM).Results:(1)The purity of VacA-HpaA IgY was about 60%,and the protein content of IgY was 22g/L;(2)The IgY showed a good heat-stability,a favorable acid-stability,and a well ability of anti-pepsin digest;(3)Western blot exhibited the protein bands with molecular weight of 27 000 and 30 000.The titer of VacA-HpaA IgY to VacA and HpaA were 1∶3 200 and 1∶6 400;(4)A dose and time dependent correlation of the IgY to counteract the cytotoxic activity of VacA;(5)VacA-HpaA IgY could interrupt the adhesive attraction of H.pylori.Conclusion:The VacA-HpaA IgY has good stabilities and well biologic speciality,which imply that the IgY could be used to prepare treatmental antibody against H.pylori infection.
2.Finger Tapping of Stroke Patients' Unaffected Hand Is Different from Healthy
Lingli ZHANG ; Zhibang MAO ; Xiang QI ; Zhusheng YU
Chinese Journal of Rehabilitation Theory and Practice 2015;21(4):467-469
Objective To compare finger tapping of stroke patients' unaffected hands to the same hands of healthy people. Methods 40 stroke patients with left hemiplegia (25 males and 15 females), including 11 cases of cerebral hemorrhage and 29 cases of cerebral infarction, and other 40 healthy people were tested the finger tapping of right hand. Results The finger tapping was significantly lower in the stroke patients than in the healthy people (P<0.01). There was no difference in finger tapping between patients with cerebral hemorrhage and cerebral infarction (P<0.05). Conclusion Motor function of fingers in unaffected hands is injured in stroke patients.
3.Effect of static stretching and strength exercise of the lower limb on the balance function of the elderly
Zhibang MAO ; Lingli ZHANG ; Xiaoyong LAI ; Xiaoming YU ; Honglin WANG ; Liming JIANG ; Zhusheng YU
Chinese Journal of Tissue Engineering Research 2015;(42):6803-6807
BACKGROUND:After entering the aging society, improving the balance function to prevent fals and reduce incidence of fractures in the elderly has received widespread attentions in al aspects. OBJECTIVE: To design a training program for the elderly, involving static stretching and strength exercise of lower limb, in order to study the combined effect on the balance function of the elderly. METHODS: Static stretching and strength training of the lower limbs were carried out in 28 elderly persons who met the inclusion criteria for 3 months, three times a week, once for 60 minutes. Before and after exercise training, the static balance ability with foot standing, eyes open and eyes closed was evaluated using the PRO-KIN balance instrument; the dynamic balance ability and lower limb strength were evaluated using treadmil test with eyes closed and chair-stand test. Evaluation results before and after exercise were compared and anayzed. RESULTS AND CONCLUSION:In the eyes open state, the average X-axis coordinate and exercise-induced elipse area at the center of pressure were significant different before and after exercise (P < 0.01); the mean velocities at the left and right direction were of significant difference before and after exercise (P < 0.05); the results of treadmil test with eyes closed and chair-stand test also presented very significant differences before and after exercise (P < 0.01). Static stretching combined with lower limb strength exercise can effectively improve the balance function and lower limb strength of the elderly, which can be used as an effective exercise way to prevent the fals in the elderly.
4. Analysis of misdiagnosis and mistreatment of epidermoid cyst in intrapancreatic accessory spleen
Shaojian WANG ; Jiao CHEN ; Zhongxiang DING ; Zhibang ZHANG ; Xingping GAN
Chinese Journal of Pancreatology 2019;19(6):446-449
Objective:
To investigate the imaging characteristics and the cause for the misdiagnosis and mistreatment of epidermoid cyst in intrapancreatic accessory spleen (ECIPAS) in order to improve the accuracy of preoperative diagnosis.
Methods:
The clinical and imaging data of 8 patients with ECIPAS confirmed by pathology in Zhejiang Provincial People′s Hospital between June 2008 and February 2018 were collected. The reason for doctor visit included CA19-9 elevation (
5. Total cerebral infarction caused by autologous fat injection in the forehead: a case report
Fang LI ; Jiao CHEN ; Danfeng SUN ; Qi JIN ; Zhibang ZHANG
Chinese Journal of Plastic Surgery 2019;35(7):638-640
Cerebral artery embolism is a rare but serious complication of facial plastic surgery. This paper reports a case of severe total cerebral arterial fat embolism caused by facial autologous fat injection. The patient past away after 40 hours of treatment. The cause of this total cerebral artery embolism patient was analyzed by tracing relevant medical history and cephalic CTA examination. By studying this case, we hope to reduce the occurrence of similar situations in the future.