To evaluate the effects of esmolol hydroehloride on hemodynamies during tracheal intubation. Method: One hundred patients undergoing elective cerebral, thoracic or abdominal operations, were randomly divided into three groups: Group A, Group B and Group C, which were injected I. V. esmolol 1.0mg/kg, 2.0mg/kg and normal saline 10ml respectively before induction of anesthesia. SP, DP, HR and RPP were recorded immediately before administration, before intubation and 1,2,3,5 and 10 min after intubation. Result: HR in Group A and Group B was signifcantly slower than in Group C, especially 3 min and 10 min after intubation(P

AIM: To investigate the effects of Src family kinases (SFKs) on adenosine 5'-triphosphate (ATP)-induced long-term potentiation (LTP) in the spinal dorsal horn. METHODS: Male Sprague-Dawley rats (250-280 g) were used in the experiments. Western blotting, electrophysiological recording in spinal dorsal horn in vivo and immunohistochemistry were used in the study. The C-fiber-evoked field potentials were recorded at the superficial layers of spinal dorsal horn at the lumbar enlargement and the phosphorylation level and location of SFKs in spinal dorsal horn were examined by Western blotting and immunohistochemistry. RESULTS: Thirty min and 60 min after ATP application, the levels of phosphorylated SFKs (p-SFKs) were significantly increased.The p-SFKs were expressed in microglia, but not in astrocytes or neurons. Spinal application of SFK inhibitors prevented ATP-induced LTP. CONCLUSION: Microglial SFKs may play an important role in ATP-induced LTP of C-fiber evoked field potentials in the spinal dorsal horn.

Objective To evaluate the prognostic impact of MRI-detected prevertebral space involvement in nasopharyngeal carcinoma (NPC) treated with radiotherapy and chemotherapy.Methods A retrospective analysis was performed on the clinical data of 333 patients who had newly diagnosed biopsyproven NPC without distant metastasis from 2005 to 2007.All patients underwent MRI scans of the nasopharynx and neck and were treated with two-and three-dimensional radiotherapy without or without chemotherapy.The Kaplan-Meier method was used to calculate overall survival (OS),distant metastasis-free survival (DMFS),and locoregional relapse-free survival (LRFS),and the log-rank test was used for survival difference analysis;the Cox proportional hazards regression analysis was used to assess the prognostic value of prevertebral space involvement.Results The follow-up rate was 95.2％.Prevertebral space involvement was seen in 139(41.7％) of these patients.The patients with prevertebral space involvement had significantly higher T stage and clinical stage than those without prevertebral space involvement (x2 =90.41,P =0.000;x2 =54.03,P =0.000).The 5-year OS,DMFS,and LRFS for NPC patients with and without prevertebral space involvement were 58.8％ vs.77.5％ (x2 =11.95,P =0.000),77.8％ vs.85.0％(x2=2.56,P=0.110),and 88.3％ vs.91.8％ (x2=1.51,P=0.220),respectively.After adjusting for N stage,a significant difference was still seen between the two groups with regard to 5-year OS (x2 =9.93,P =0.002).The multivariate analysis showed that prevertebral space involvement was not the independent prognostic factor for OS,DMFS,and LRFS (x2 =0.43,P =0.512 ; x2 =0.08,P =0.783 ; x2 =0.00,P =0.971).Conclusions The frequency of prevertebral space involvement is very high in NPC.The OS for the patients with prevertebral space involvement is significantly lower than those without prevertebral space involvement.But prevertebral space involvement is not the independent prognostic factor in NPC patients.

Objective To discuss the surgical treatment of spinal injury, and provide insights on key points and related issues for operations. Methods Two hundred and five cases of spinal fracture were treated through posterior surgical treatment. Under C-arm X-ray monitoring, surgeries had been operated on pedicle screws insertion, vertebral canal decompression, over-extending reduction position, and placed the connecting rod, knocked in the bone graft and finally transplanted the paraspinal bone. Results After operations , the height and morphology of vertebral bodies and spinal physiological curvature were basically recovered analyzed by X ray examination. The follow-up results (in the average of 14 to 36 months) indicated that there were 4 cases of delayed infection, 7 cases of loosen screw, 6 cases of broken screw (14 screws)and 1 case of broken stick, with no secondary nerve injury or other syndromes. Conclusion The vertebral pedicle screw internal fixation manipulated easily, which could sufficiently enlarge vertebral canal in order to decompression. In addition, during the operation, together with over-extending reduction position is beneficial to regain the height of fractured vertebral bodies.

AIM:To investigate the effects of P2X4 receptor on peri-sciatic administration of recombinant rat TNF-α(rrTNF)-induced mechanical allodynia.METHODS:Male Sprague-Dawley rats (180~200 g) were used in the experiments.The levels of P2X4 receptor on day 3, day 7 and day 14 after peri-sciatic administration of rrTNF were exam-ined by Western blot, and the location of P2X4 receptor in the spinal dorsal horn was observed by double immunofluores-cence staining.The changes of 50%paw-withdrawal thresholds of the rat were detected by behavioral test, and the level of TNF-αin the spinal dorsal horn was also examined by Western blot when TNP-ATP was intrathecally injected before the ad-ministration of rrTNF.RESULTS:Compared with control group, the expression of P2X4 receptor in the spinal dorsal horn on the ipsilateral side significantly increased on day 3, day 7 and day 14 (P<0.01) after rrTNF (100 ng/L) administra-tion.P2X4 receptor was co-localized only with microglia, but not with neurons or astrocytes.Intrathecal injection of TNP-ATP before rrTNF administration prevented mechanical allodynia induced by rrTNF and inhibited the upregulation of TNF-αin the spinal dorsal horn.CONCLUSION:P2X4 receptors in microglia may be involved in rrTNF-induced mechanical allodynia by the upregulation of TNF-αin the spinal dorsal horn.

Objective To investigate the prognostic value of maximum diameter in axial plane of primary tumor (MDAPPT) on MRI in nasopharyngeal carcinoma (NPC).Methods From 2005 to 2007,333 patients with newly diagnosed and biopsy-proven NPC without distant metastasis,who underwent MRI scans of the nasopharynx and neck,were included in our study.MDAPPT was measured on MRI.The univariate analysis with the log-rank test and multivariate analysis with the Cox proportional hazards model were used to analyze the relationship between MDAPPT and prognosis.Results The median values of MDAPPT in patients with T1,T2,T3,and T4 NPC were 21.2,30.0,38.0,and 52.3 mm,respectively.For all patients with a MDAPPT of ≤30 mm,＞ 30-50 mm,and ＞ 50 mm,the 5-year overall survival (OS) rates were 81.3％,70.1％,and 51.5％,respectively (P =0.000) ; the 5-year progression-free survival (PFS) rates were 81.3％,70.0％,and 48.9％,respectively (P =0.000) ;the 5-year distant metastasisfree survival (DMFS) rates were 85.5 ％,86.5 ％,and 67.2 ％,respectively (P =0.000) ; the 5-year local relapse-free survival (LRFS) rates were 97.7％,91.5％,and 83.3％,respectively (P =0.013).The multivariate analysis showed that MDAPPT was a prognostic factor for PFS and DMFS.For the T3-T4 patients with a MDAPPT of ≤50 mm and ＞50 mm,the 5-year OS rates were 69.4％ and 52.2％ (P =0.004),the 5-year PFS rates were 68.0％ and 49.6％ (P =0.001),and the 5-year DMFS rates were 84.0％ and 66.8％ (P=0.001).In the patients with a MDAPPT ≤30 mm,the 5-year LRFS rates for those with T1,T2,T3,and T4 NPC were 10 0 ％,9 5.8 ％,9 6.3 ％,and 10 0 ％,respectively (P =0.6 4 3).Conclusions MDAPPT is a prognostic factor for PFS and DMFS in NPC,and it is an important prognostic factor in patients with T3-T4 NPC.In the NPC patients with a small MDAPPT,local control rate varies little in different T stages.

Objective To explore the roles of spinal microglial Src-family kinases (SFKs) in diabetic neuropathic pain. Methods Male Sprague-Dawley rats, weighing 200 ~ 220 g, were used in the experiments. The level of p-SFKs in spinal dorsal horn was detected by single immunofluorescence staining on day 7th , 14th and 28th after intraperitoneally injection of Streptozotocin (STZ) and its location was detected by double immunofluorescence staining. The changes of 50% paw-withdrawal thresholds of rat were detected by behavioral tests when PP2 , a specific inhibitor of SFKs , was intrathecally administered before intraperitoneally injection of STZ. Results Compared with vehicle group, the blood glucose level increased on day 1 (P < 0.001) and the hyperglycemia persisted at least for 28 days (P < 0.001) after intraperitoneally administered of STZ (50 mg/kg). Paw-withdrawal threshold (PWT) decreased gradually from day 1 (P < 0.05) and reached the minimum on day 28 (P < 0.001) after STZ administration. Meanwhile, the expression of p-SFKs in spinal dorsal horn markedly increased on day 7 (P < 0.01), day 14 (P < 0.01) and day 28 (P < 0.01). The p-SFKs was mainly co-localized only with microglia , but not with neurons or with astrocytes. Intrathecally administered of PP2 before STZ reversed STZ-induced mechanical hyperalgesia. Conclusion Microglial SFKs in spinal dorsal horn maybe play a pivotal role in diabetic neuropathic pain.

Objective:To investigate the mechanism of subjective cognitive decline(SCD)in resting-state by using regional homogeneity(ReHo)and functional connectivity(FC)in SCD patients.Methods:Resting-state functional magnetic resonance imaging(RS-fMRI)was performed in 25 SCD patients and 30 normal controls matched by sex, education and nationality.DPARSFA2.3 and SPM8 software were used to analyze and screen the brain areas with abnormal ReHo values in SCD group, with the posterior cingulated(PCC)/paruneus as seed points for whole-brain FC analysis.Results:Compared with the normal control group, the SCD group showed that ReHo values of right occipital gyrus and left precuneus were increased, and ReHo values of right inferior temporal gyrus, right orbital inferior frontal gyrus and bilateral thalamus were decreased(Voxel level, Alphasim correction, P<0.05). Using PCC/ precuneus as seed voxels, the whole brain functional connectivity analysis showed that the functional connectivity with cerebelum Crus 2 R was increased, and the functional connectivity with right orbital inferior frontal gyrus, left inferior temporal gyrus and temporal pole was reduced(Voxel level, Alphasim correction, all P<0.05). Conclusions:Default mode network may play an important role in the mechanism of SCD, and abnormalities in brain areas may first occur in PCC/precuneus.

OBJECTIVETo study the distribution and quantity of CD44+/CD24- cells in breast cancer tissue and the cell lines, and as well as its correlation with the expression of various breast cancer markers and molecular subtyping of breast carcinoma.

METHODSThe expression of CD44/CD24, estrogen receptor, progesterone receptor, HER2, human estrogen-induced protein PS2, bcl-2 and nm23 in 60 cases of invasive ductal carcinoma of breast were studied by either single or double immunohistochemical staining. The co-expression of CD44 and CD24 in 3 breast cancer cell lines (MCF-7, MDA-MB-468, and MDA-MB-231) was also examined.

RESULTSThe quantity and distribution of CD44+/CD24- cells varied greatly and no specific patterns were identified. The percentage of CD44+/CD24- in breast cancer was 65%. The amount of CD44+/CD24- cells did not correlate with the age of patients, lymph node metastasis, tumor size, molecular subtypes and expression of various breast cancer markers in breast carcinoma. The proportion of CD44+/CD24- cells in MCF-7, MDA-MB-468, and MDA-MB-231 cell lines was <1%, 5% and >80%, respectively.

CONCLUSIONSCD44+/CD24- cells are demonstrated in certain breast cancer tissues and cell lines. However, there is no relationship obtained between the quantity or the distribution of these cells and the molecular subtyping or the clinicopathologic parameters in breast cancer.

Adult ; Aged ; Biomarkers, Tumor ; Breast Neoplasms ; classification ; metabolism ; pathology ; CD24 Antigen ; metabolism ; Carcinoma, Ductal, Breast ; classification ; metabolism ; pathology ; Cell Line, Tumor ; Female ; Humans ; Hyaluronan Receptors ; metabolism ; Lymphatic Metastasis ; Middle Aged ; NM23 Nucleoside Diphosphate Kinases ; metabolism ; Proto-Oncogene Proteins c-bcl-2 ; metabolism ; Receptor, ErbB-2 ; metabolism ; Receptors, Progesterone ; metabolism ; Trefoil Factor-1 ; Tumor Suppressor Proteins ; metabolism

Objective To evaluate the effectiveness and safeness of X-ray guided semilunar ganglion radiofrequency thermocoagulation through oval foramen in the treatment of tdgeminal neuralgia.Methods Three hundred and sixty-eight patients with primary trigeminal neuralgia,admitted to our hospital from July 2011 to July 2014,were successfully treated with X-ray guided semilunar ganglion radiofrequency thermocoagulation through oval foramen.Three,30 and 90 d after treatment,the treatment effectiveness was evaluated.The recurrence rates were calculated one and two years after treatment or to the date of their relapses to hospital.Results All patients showed obvious pain relief,with visual analogue scale scores decreasing from 8.82±0.84 to 1.14±0.91,to 0.40±0.58,and then to 0.18±0.38 on 3rd,30th and 90th d.Their qualities of sleep were improved:quality of sleep scale scores dropped from 3.75± 0.73 to 2.18±0.66,to 1.37±0.48,and then to 1.02±0.15,respectively.Meanwhile,patient satisfaction was increased:as patient satisfaction scale scores reduced from 2.90±0.34 to 1.35±0.58,to 1.10±0.30,and then to 1.06±0.24,respectively.The main complications were masticatory muscle weakness in 67 patients (7.34％),and corneal hypesthesia in 20 patients (2.45％).Postoperative recurrence rate was 5.71％ in one year,and 21.20％ in two years.The mean time of effective therapeutic duration was 22.33± 12.70 months.Conclusions X-ray guided semilunar ganglion radiofrequency thermocoagulation through oval foramen is effective and safe for the treatment of primary trigeminal neuralgia,enjoying no severe complications and low recurrence rate.