1.Relationship of the terminal position of the muscular contraction path and centric relation position in different vertical dimension
Journal of Peking University(Health Sciences) 2004;0(01):-
Objective: To investigate the relationship of the terminal position of the muscular contraction path and centric relation position with different vertical dimension.Methods: The terminal position of the muscular contraction path and centric relation position with different vertical dimension were recorded for ten edentulous patients with gothic arch.Results: The mesial distance between the terminal position of the muscular contraction path and centric relation position increased with the vertical dimension.The lateral dimension between the terminal position of the muscular contraction path and centric relation position,the distribution of the terminal position of the muscular contraction path are not correlated to the vertical dimension.The center of the terminal position of the muscular contraction path is 1-4 mm ahead of the centric relation position and(0.42?0.47) mm lateral to the centric relation position.The distribution of the terminal position of the muscular contraction path is(1.36?0.58) mm in the mesial-distal direction,(1.56?0.62) mm in the lateral direction.Conclusion: With the increase of the vertical dimension,the mesial distance between the terminal position of the muscular contraction path and centric relation position increased.
2.Morphological changes of vertebral-basilar artery in patients with posterior circulation ischemia ;vertigo
Chinese Journal of Cerebrovascular Diseases 2016;(2):62-66,99
Objective To investigate the morphological characteristics of vertebral-basilar artery in patients with posterior circulation ischemia vertigo. Methods The data of cerebrovascular disease related risk factors,neck CT angiography,and head MR angiography of 122 patients with posterior circulation ischemia vertigo and 60 non-vertigo volunteers with cerebrovascular disease related risk factors over the same period were analyzed retrospectively. The positive index of single factor comparison was analyzed by using multivariate logistic regression analysis. The risk factors for posterior circulation ischemia vertigo were screened,and the degree of vertebral artery stenosis and the degree of basilar artery tortuosity of the posterior circulation ischemia group were compared with those of the control group. Results (1 )The incidences of hypertension,hyperlipidemia,previous history of stroke or transient ischemic attack,vertebral artery atherosclemtic stenosis,vertebral artery variation,and basilar artery tortuosity of the posterior circulation ischemia group were 59%(n=72),55. 7%(n=68),64. 8%(n=79),41. 0%(n=50),28. 7%(n=35),and 30. 3%(n=37),respectively,and they were all significant higher than 33. 3%(n=20),31. 7%(n=19),35. 0%(n=21),15. 0%(n=9),10. 0%(n=6),and 15. 0%(n=9)of the control group. There were significant differences (all P<0. 05). (2)Vertebral artery atherosclerotic stenosis (OR,3. 891, 95%CI 1. 721-8. 800,P <0. 01),vertebral artery variation (OR,3. 231,95%CI 1. 238-8. 432,P =0.017),and basilar artery tortuosity (OR,2. 664,95%CI 1. 189-5. 972,P=0. 017)were the independent risk factors for posterior circulation ischemic vertigo. The degrees of vertebral artery stenosis and basilar artery tortuosity of the posterior circulation ischemic group were higher than those of the control group. There were significant differences (all P<0. 05). There was significant difference in the vertebral artery dominance between the degree of basilar artery tortuosity ≥grade 2 and
3.Disinfectant-resistant gene of methicillin-resistant St ap hy lococcus aureus
Weihong XU ; Jun ZHANG ; Jie LIU
Chinese Journal of Infection and Chemotherapy 2014;(5):432-435
Objective To understand the prevalence of disinfectant-resistant gene qacA/B in the clinical strains of methicillin-resistant Staphylococcus aureus (MRSA) .Methods A total of 123 clinical consecutive MRSA strains were collected for PCR assay to detect qacA/B gene and mecA gene .Results The qacA/B gene was identified in 19 (15 .4% ) of the 123 MRSA strains . The mecA gene was positive in 89 .4% (110/123) of the MRSA strains .Conclusions The disinfectant-resistant gene qacA/B is prevalent in the hospital-acquired MRSA strains .Monitoring measures should be strengthened for appropriate selection of disinfectants in clinical practice .
4.Comparison study of readout-segmented EPI and single-shot EPI in DWI of orbit in healthy adults
Jun LIU ; Xiaoquan XU ; Feiyun WU
Chinese Journal of Medical Imaging Technology 2017;33(6):872-875
Objective To explore the feasibility of the applicatoin of readout-segmented echo-planar imaging (RS-EPI) at 3.0T MR of the orbit DWI and compared with single-shot echo-planar imaging (SS-EPI).Methods Forty-two volunteers underwent both standard SS-EPI and RS-EPI DWI of the orbit at a 3.0T MR unit.Two sets of DWI images were independently qualitatively scored in the number of distinguishable normal structures,fat suppression,ghosting artifact and overall image quality.SNR of the vitreous body,geometric distortion ratio (GDR) in both anterior-posterior (AP) and right-left (RL) direction,and ADC value of the vitreous body and pons were also quantitatively calculated and compared between two sets of DWI images.The statistical analysis was performed.Results For qualitative assessment,the RS-EPI was superior to SS-EPI on the number of distinguishable normal structures (P=0.009 0),ghosting artifact (P<0.000 1),and overall image quality (P<0.000 1),while no significant difference was found on fat suppression (P=0.753 9).For quantitative assessment,RS-EPI had significantly lower GDR than the SS-EPI in both AP and RL direction (P=0.001 4,0.001 7).The SNR in RS-EPI was significantly lower than that of SS-EPI (P=0.004 0).Meanwhile,there was no significant difference of ADC on vitreous body and pons between RS-EPI and SS-EPI (P=0.143 8,0.126 2).Conclusion The RS-EPI can provide better image quality than SS-EPI protocol in orbital DWI at 3.0T MR imaging.
5.Effect of Immunosuppressant on Self-rated Health in Kidney Transplantation Patients with or without Post-transplantation Diabetes Mellitus
Qing ZHANG ; Shiting LIU ; Jun XU
China Pharmacy 2001;0(10):-
OBJECTIVE: To study the influence of cyclosporine and tacrolimus on self-rated health in kidney transplantation patients with or without post-transplantation diabetes mellitus (PTDM). METHODS: Outpatients with kidney transplantation were divided into group with PTDM, group without PTDM, cyclosporine group and tacrolimus group according to mainly used immunosuppressant and patients with or without PTDM. Self-rated Health Measurement Scale (SRHMS) was applied for investigation. RESULTS: The level of physical health, psychological health and social health of kidney transplantation patients with PTDM were markedly lower than patients without PTDM (P
6.Effects of sevoflurane inhalation in different concentrations on thyroid operation under real-time monitoring of the recurrent laryngeal nerve
Xiaobin XU ; Yongqin LIU ; Jun LI
Medical Journal of Chinese People's Liberation Army 1983;0(02):-
140?V)when the end tidal concentration of sevoflurane increased during the operation.The BIS were between 43-61 when the end tidal concentration of sevuflnrane was lower than 1.0 MAC.The BP and HR in the group decreased(P
7.Standard position of off icially medical literature in Tang-Song dynasty
Cong LIU ; Jun LIANG ; Jiangyan XU
China Journal of Traditional Chinese Medicine and Pharmacy 2005;0(05):-
It is the most important mission that preserving and developing advancement of TCM theory and practice.We need defi nitive medical standard to standardize the development.Whether there was any standards in the history of traditional Chinese medicine is a hot question.Though the history research,we found that TCM classic literature was the medical standard in ancient China,which was confirmed by Tang-song government though official action.The standard teaching materials promoted the communication and development of TCM.After Song dynastythe standard position and function was strengthened continuouslywhich had a profound effect.
8.Construction of tissue engineering adipose with human umbilical cord mesenchymal stem cells transfected by insulin gene and silk fibroin scaffold in vitro
Chinese Journal of Medical Aesthetics and Cosmetology 2012;18(4):277-281
Objective To study the construction of tissue engineering adipose in vitro with silk fibroin scaffold and human umbilical cord mesenchymal stem cells (hUCMSCs) transfected by recombinant human insulin gene lentivirus.Methods hUCMSCs infected with recombinant lentiviral pLenti6.3-insulin-IRES-EGFP (Group A) by the best MOI=10 were seeded in silk fibroin scaffold; hUCMSCs transfected by EGFP gene (Group B)was regarded as negative control; and then the cell-scaf-fold complexes were cultured in adipogenic differentiation medium. MTT test was used to detect whether recombinant lentiviral affected the growth and proliferation of hUCMSCs and the growth activity of hUCMSCs seeded in silk fibroin.Results After 5-7 days for adipogenic culture,the numbers of fat-like cells in group A were significantly more than those in group B (P =0.007,P<0.01).RTPCR results showed that the expression of PPARγ-2 in group A was much stronger than that in group B.MTT test showed that there was no significant difference in optical density (A)at each time between transfected group and nontransfected group (P=0.056,P>0.05).And there was also no significant difference in optical density (A)between cell group and cell-scaffold group (P =0.066,P>0.05).Conclusions Insulin gene could obviously promote hUCMSCs getting into adipose,and carrying recombinant human insulin gene lentiviral vector transfection of hUCMSCs and silk fibroin scaffolds could effectively construct tissue engineering adipose in vitro.
9.The effect of finasteride on bleeding associated with suprapubic prostatectomy and transurethral resection of prostate
Jianjun LIU ; Jun CAO ; Zhijian XU
Chinese Journal of Urology 2001;0(08):-
Objective To study the effect of finasteride on bleeding associated with suprapubic prostatectomy and transurethral resection of prostate (TURP). Methods CD 34 ,bcl-2,PCNA and VEGF expressions in the prostatic tissues were studied by means of immunohistochemical method in 89 patients undergone prostatectomy,43 of them had taken fenateride and the other 46 did not.Acomparative study of clinical data and immunohistochemical parameters was made between the 2 groups. Results The volume of bleeding and blood transfusion needed were much less in the group treated with fenasteride.The microyascular density as studied by immunohistochemistry was much less in the fenasteride group.The expressions of bcl-2,PCNA and VEGF were also different between the 2 groups ( P
10.Breast reconstruction by deep inferior epigastric perforator flap
Jun XU ; Xiaolei JIN ; Yuanbo LIU
Chinese Journal of Medical Aesthetics and Cosmetology 2002;0(02):-
Objective To present a method for breast reconstruction with the deep inferior epigastric perforator (DIEP) flap and to summarize the operative experiences. Methods DIEP flaps were elevated without carrying rectus abdominis muscle. The breast was shaped after the deep inferior epigastric artery and vein were anastomosed to the internal mammary artery and vein. Results Since 2000, we have used the DIEP flaps in 15 cases of breast reconstruction. There were 100 % survival in 10 flaps, distal skin necrosis in 2 flaps, and a full loss in 2 flaps. With the follow-up of 6~12 months, the reconstructed breasts were well-shaped and there were no complications such as abdominal heria, bulge and weakness in donor sites. Conclusion DIEP flap is the development and refinement of TRAM flap and possesses of advantages such as rich blood supply, abundant tissue volume, minimal donor site morbidity and easy shaping. It is a new but reliable and safe technique for autologous breast reconstruction.