1.Effect of dissection and reconstruction of palatal muscles on histological structure and ultrastructure of soft palate
Yong LU ; Bing SHI ; Qian ZHENG
Journal of Practical Stomatology 2010;26(2):185-189
Objective:To observe the effect of dissection and reconstruction on palatal muscles morphology in cats. Methods: Nine cats were randomly divided into three groups according to the extension of muscle dissection: small area group(<1/3 group),medium area group(1/3-2/3 group)and large-scale area group(>2/3 group).Control group was the normal palatal muscle in any normal side of the palate.Palatal muscles of all experimental groups were dissected from the posterior border of the hard palate and were reconstructed later. The morphology features and ultrastructure of palatal muscles were observed respectively by HE staining and transmission electron microcopy 1-3 month after operation. Results: There were no obvious differences in morphologic features and ultrastructure of palatal muscles between experiment and normal control groups when the range of palatal muscle dissection was less than 2/3. At early stage (1 month) after operation in large-scale area group, the arrangement of muscles fiber were in structural disorder with inflammatory cell infiltration and muscle fibril formation. The Z line was not distinct, muscles fiber became narrow and myocomma arrangement was not fully dense under transmission electron microcopy. At later stage (2 or 3 month after operation) in large-scale area group, the arrangement of muscles fiber were comparatively regular, neonatal muscles fibers became gradually mature and the amount of inflammatory cell had obviously decreased. Ultrastructure study showed that myocomma arrangement was more orderliness, and Z line became more distinct. Conclusion: It suggests that the extensive dissection of palatal muscles carried no fibrosis, and injury musculature could be repaired and regenerated.
3.Analysis of clinical distribution of streptococcus penumoniae and drug susceptibility test results
Yafei YIN ; Meng SHI ; Ling LU ; Yong ZHOU
Chongqing Medicine 2017;46(7):913-915
Objective To understand the clinical distribution situation of streptococcus penumoniae (SP) and drug susceptibility test results to provide a basis for the clinical diagnosis,treatment and prevention of SP infection.Methods Totally 416 nonrepeat strains of SP were isolated during 2010 to 2015.Their identification and drug susceptibility test were performed by using the ATB Express bacterial identification system.The results were interpreted according to the standard of CLSI 2014 edition.Results In these 6 years,SP showed the isolation peak in spring and winter;the detection rate of respiratory tract specimens reached more than 90 %;the young children and elderly people were predominant;SP maintained high sensitivity to penicillin,amoxicillin,etc.,the difference in the sensitivity rate and non-sensitivity rate had statistical significance(P<0.05);but SP showed high level non-sensitivity to clindamycin,erythromycin,etc.,the difference in the sensitivity rate and non-sensitivity rate had no statistical significance (P>0.05).Conclusion Although β-lactam antibiotics such as penicillin can still be used as the first choice of therapy,but PISP and PRSP show the increasing trend year by year;therefore the antibacterial drugs should be selected according to the drug susceptibility test results.
4.Effect of Rhodiola on nude mice with human breast cancer xenografts
Weilin QI ; Yong LI ; Hongfen LU ; Haiming SHI ; Weihu FAN
China Oncology 2006;0(09):-
Background and purpose:In in vivo and vitro studies, Rhodiola shows anti-cancer effect, but there were few reports about the effects of Rhodiola on growth of breast cancer and its possible mechanism. Methods:Xenograft of Human breast cancer cells MDA-MB-435 in female BALB/c nude mice were treated with and without Rhodiola extracts. The tumor volume and proliferation index (PCNA and Ki67) of the xenograft were studied.Results:After Rhodiola was given to nude mice for 4 weeks, the mean tumor volume was smaller (99.95mm 3 vs. 174.60mm 3 ) compared to untreated group,but there was no statistical significance(P=0.535). The proportion and intensity of cellular Ki-67 staining in Xenografts were decreased as compared to the untreated group, (average H-score 152.8 vs. 86, P=0.014), the same trend could be found for cellular PCNA staining, but there was no statistical significance(242 vs.210,P=0.221).Conclusions:The mechanism of anti-cancer effect of Rhodiola may be partly through inhibiting the proliferation of cancer cells in vivo.
5.Comparison of CT Features of Hepatic Metastases of Gastro-entero-pancreatic Adenocarcinomas with and Without Neuroendocrine Differentiation
Yong CUI ; Shunyu GAO ; Ming LU ; Yanjie SHI ; Yunfei SHI ; Yingshi SUN
Chinese Journal of Medical Imaging 2017;25(1):1-5
Purpose To compare the CT features of hepatic metastases of gastro-entero-pancreatic adenocarcinomas with and without neuroendocrine differentiation [NED(+) and NED(-)] and to explore the value of CT features in differentiation of the two groups.Material and Methods From January 2009 to December 2015,abdominal CT scans of 17 pathologically proved cases of NED(+) gastro-entero-pancreatic adenocarcinomas with hepatic metastases and 34 pathologically proved cases of NED(-) hepatic metastases with sex,age and primary site matched were retrospectively reviewed.CT features including hepatic metastases number,size,distribution,shape and enhancement were assessed,as well as presence of lymphadenopathy or ascites.Differences of CT features between the two groups were analyzed.Results Compared with NED(-) group,hepatic metastases of NED(+) group more frequently demonstrated a peripheral enhancement on artery phase (94.1% vs.44.1%,P<0.05),and more washout on portal venous phase (41.2% vs.5.9%,P<0.05),while hepatic metastases of NED(--) group showed more plateau type (91.2% vs.58.8%).There was no significant difference of other findings between the two groups (P>0.05).Logistic regression revealed that enhancement area in hepatic artery phase and enhancement changes in portal venous phase were independent factors for differential diagnosis (P<0.05).The area under the ROC curve of combining the two features was 0.811 (P<0.05).Conclusion There are some different CT enhancement features between NED(+) and NED(-) hepatic metastases of gastro-entero-pancreatic adenocarcinomas,which are helpful in differential diagnosis.
6.Application of standardized patients in classroom teaching of psychiatry
Yan WU ; Yong XU ; Jie YANG ; Yong ZENG ; Shenxun SHI ; Hejian ZOU ; Yingqing LU
Chinese Journal of Medical Education Research 2012;11(9):912-914
Objective To evaluate the effect of using standardized patients (SP) in psychiatry class teaching.Methods A standardized patient was used when giving instructions on seven years clinic medicine students of Fudan university,the effect of this teaching model was assessed.Results Totally 96.19% of students believed that standardized patients teaching model was better than the traditional model.Students in classes of using standardized patients scored higher than students in classes without using standardized patients.Conclusion The standardized patients teaching mode,recognized by almost all students,is believed to help students to better master the knowledge of psychiatry.
7.Effects of curcumin on sodium currents of dorsal root ganglion neurons in type 2 diabetic neuropathic pain rats.
Bo MENG ; Lu-lu SHEN ; Xiao-ting SHI ; Yong-sheng GONG ; Xiao-fang FAN ; Jun LI ; Hong CAO
Chinese Journal of Applied Physiology 2015;31(6):541-548
Along with the development of economy and society, type 2 diabetic mellitus (T2DM) has become one of the most common diseases at the global level. As one of the complications of T2DM, diabetic neuropathic pain (DNP) stubbornly and chronically affects the health and life of human beings. In the pain field, dorsal root ganglion (DRG) is generally considered as the first stage of the sensory pathway where the hyperexcitability of injured neurons is associated with different kinds of peripheral neuropathic pains. The abnormal electrophysiology is mainly due to the changed properties of voltage-gated sodium channels (VGSCs) and the increased sodium currents (I(Na)). Curcumin is an active ingredient extracted from turmeric and has been demonstrated to ameliorate T2DM and its various complications including DNP effectively. The present study demonstrates that the I(Na) of small-sized DRG neurons are significantly increased with the abnormal electrophysiological characteristics of VGSCs in type 2 diabetic neuropathic pain rats. And these abnormalities can be ameliorated efficaciously by a period of treatment with curcumin.
Animals
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Curcumin
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pharmacology
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Diabetes Mellitus, Experimental
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complications
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Diabetes Mellitus, Type 2
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complications
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Diabetic Neuropathies
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drug therapy
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Ganglia, Spinal
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cytology
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drug effects
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metabolism
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Neuralgia
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drug therapy
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Neurons
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drug effects
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metabolism
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Rats
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Sodium
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Voltage-Gated Sodium Channels
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physiology
8.Individual repair technique of microform cleft lip: state of art.
Sheng LI ; Bing SHI ; Qian ZHENG ; Yong LU
Chinese Journal of Plastic Surgery 2006;22(3):193-195
OBJECTIVETo explore an technique to repair the microform cleft lip (MCL).
METHODSThe individual method was used to repair the MCL, a contrastive research was carried to analyzed the result.
RESULTSIt was found that the form of the cupid's bow was good, and the configure of the upper lip was reconstructed. The deficit of the orbicularis muscle was overcame and the function was satisfying by this procedure. Symmetry was recovered.
CONCLUSIONSIndividual technique is an available method to repair the microform cleft lip. Furthermore, this technique is also promising to repair the other kinds of cleft lip.
Cleft Lip ; surgery ; Female ; Humans ; Infant ; Male ; Reconstructive Surgical Procedures ; methods
9.Hierarchical chain management model in blood glucose control and its influence factors in patients with diabetes mellitus
Qingge GAO ; Yi WANG ; Chao SHI ; Rong CHEN ; Changxiu LIANG ; Yanrong LU ; Yong ZHOU
Chinese Journal of Postgraduates of Medicine 2012;35(19):7-10
Objective To explore the hierarchical chain management model in blood glucose control and its influence factors in patients with diabetes mellitus.Methods Health management database of diabetic patients was established in 2007 and managed by hierarchical chain management.The number of the patients reached to 1010 till 2011.The blood glucose control of diabetic patients was analyzed and its influence factors were analyzed by multivariate unconditional Logistic regression method.Results The concentration of glycosylated hemoglobin( HbA1c ) of 1010 patients with type 2 diabetes was (8.21 ±:2.70)%.Four hundred and eighty-seven cases (48.22%) reached the blood glucose standard,303 cases (30.00%)reached the blood pressure standard,245 cases (24.26%) reached the blood lipids standard,and 76 cases (7.52%) reached all three standards.Multivariate analysis showed that occupation (OR =2.521,95% CI:1.871 - 3.397),education level (OR =1.890,95% CI:1.642 - 2.174),disease course (OR =1.035,95%CI:1.016 -1.055),systolic pressure (OR =1.016,95% CI:1.007 -1.025) and triglyceride (OR =1.204,95%CI:1.063 - 1.365) were the risk factors of blood glucose control (P <0.01).Conclusions Hierarchical chain management model is helpful for the blood glucose control in patients with type 2 diabetes.The comprehensive control and treatment of type 2 diabetes should be taken combined with related risk factors,such as blood pressure,blood lipids and diabetes disease course.
10.Biological properties of colon cancer spheroid cells cultured in serum-free medium
Shi ZHANG ; Bo WEI ; Yong HUANG ; Xiaoyan HAN ; Huiqiong LU ; Hongbo WEI
Chinese Journal of Digestive Surgery 2011;10(6):448-451
Objective To obtain colon cancer spheroid cells from human colon cancer cell lines cultured in serum-free medium (SFM),and investigate the proliferative and migratory properties of colon cancer spheroid cells.Methods Human colon cancer cell lines HCT116 and HT29 were cultured in SFM,and then the generation of spheroid cells was observed.The expression of stem cell surface marker CD133 was detected by flow cytometry,and the proliferative and migratory properties of colon cancer spheroid cells were detected by cell counting kit-8 and Transwell migration assay,respectively.All data were analyzed by using the t test.Results Spheroid cells were obtained from colon cancer cell lines HCT116 and HT29 in SFM.The ratios of spheroid cells with positive expression of CD133 generated by HCT116 and HT29 were 75.44% ± 11.41% and 76.22% ± 14.23%,respectively.Compared with original colon cancer cells cultured in serum supplemented medium,the number of HCT116 and HT29 spheroid cells with positive expression of CD133 was significantly greater (t =11.43,9.17,P < 0.05 ),and the proliferative and migratory abilities were much stronger also.Conclusion Colon cancer spheroid cells cultured in SFM have higher positive expression of CD133 and stronger proliferative and migratory abilities,and it can be utilized as a feasible model for further studies of colonic stem cells.