Objective To investigate the expression and significance of interleukin-1β and C-reactive pro-tein(CRP)in atrial fibrillation(AF).Methods Sixteen mongrel dogs were randomly divided into two groups:pa-cing group(n=8)and control group(n=8).High frequency pacing was performed in the pacing group with perma-nent pacernaker but not in the control group.After pacing for 24 weeks,tissue samples were obtained from the left and right atria.The levels of IL-1βand CRP in atria were detected by immunohistochemistry.Results Compared to the control group,the expression level of IL-1β and CRP were significantly enhanced(P<0.05)in atrial tissues during AF.Conclusion IL-1β and CRP may participate in atrial fibrillation formation and play a role in generation and maintaining the artrial fibrillation.

Objective To investigate the effects of peptide YY (PYY) on the interdigestive migrating myoelectrlc complex (MMC) in the small intestine in vivo and explore the neural and endecrinal mechanisms of the effects. Methods Spragne-Dawley rats were supplied with a venous catheter and bipolar electrodes in the duodenum and jejunum for electromyography of stomach and small intestine in wake state. PYY, phentolamine, nitro-L-arginine (L-NNA, the inhibitor of nitric oxide synthase) and atropine were served with PYY respectively. The plasma motilin levels before and after the infusion of PYY were observed. Results At all the three recording points, PYY lengthened the drde length of MMC [from (591.90±128.98)s to (999.25±216.59)s, P<0. 01] and lowered the frequency of phase Ⅲ [from (39.28±8.40) min-1 to (22.08±3.13) min-1 , P<0.01], amplitude of phase Ⅲ [from (0. 320±0.060)mV to (0. 179±0.030)mV, P<0.01], and the portion of phase Ⅲ over the whole circle length [from (28. 61 ± 5.84)% to (15.43 ±5.16)% , P<0.01]. Phentolumine had no influence on the role of PYY. Administered L-NNA combined with PYY, the percentage of phase Ⅲ increased [(42. 09±8.67)%] compared with that of control(P<0.01) and compared with that of PYY administered alone (P<0. 01) too. Atropine combined with PYY showed stronger depressing effects on MMC. No significant difference was found between the plasma motilin levels before and after the infusion of PYY. Conclusion PYY my inhibit the interdigestive intestine motility through the none-adrenergic none-choUnergic tract, while the m-receptor tract and circulating motilin are probably not involved In the depressing effect.

Objective To evaluate the value of prenatal ultrasound in the interrupted aortic arch (IAA), and analyze the reasons of misdiagnosis and improve diagnostic ratio of this kind of defects. Methods Ultrasonic characteristics were analyzed in 16 fetuses with aortic arch anomalies, which were compared with ultrasound image and autopsy results of the normal fetus. The relativity of fetal IAA and abnormal chromosome was also analyzed. Results Among the 16 cases, 15 cases were confirmed by anatomy and the accuracy of ultrasound diagnosis was 94% (15/16), of which one case was serious constriction of aortic arch, one case was error type, three cases were obtained explicit type due to unsatisfactory results of prenatal ultrasound. The coincidence rate of ultrasonic type was 73% (11/15). All of the corrected diagnosed cases were detected with ventricular septal, of which 5 cases were detected with complete endocardial cushion defect, 9 cases were found extra cardiac malformations. Among the 7 karyotype check cases, 3 cases were diagnosed with Trisomy 18, 1 case Trisomy 13, while the rest 3 cases normal. The incidence rate of Trisomy 18 was 43 % (3/7). Conclusions Prenatal ultrasound shows a high accuracy in diagnosing fetal interrupted aortic arch (IAA ), but there’s a need to be improved in explicit typing. It is difficult to identify fetal interrupted aortic arch (IAA) and serious constriction of aortic arch (COA). The incidence rate of Trisomy 18 in the abnormal chromosome of fetal IAA is high.

Objective To investigate the aberrant methylation and expression of growth arrest and DNA-damage-in-ducible 45 gamma (GADD45G) gene in gastric cardia adenocarcinoma (GCA). Methods Bisulfite conversion-methylation specific polymerase chain reaction method (BS-MSP) and immunohistochemistry method were used respectively to detect the methylation status and protein expression of GADD45G in 138 GCA tumor tissues and corresponding normal tissues. Re-sults The methylation status of GADD45G distal promoter (region 1) was not detected in GCA tumor tissues and corre-sponding normal tissues. For GADD45G region 2 and region 3, the BS-MSP results of region 3 were identical to that of re-gion 2. The methylation frequency of proximal promoter and exon 1 in GADD45G island 2 (region 2 and region 3) in GCA tu-mor tissues (49.3%, 68/138) was significantly increased compared to that in corresponding normal tissues (0, P＜0.01). The methylation status of this two sites in tumor tissues was associated with TNM stage of tumors (P＜0.05). The protein expres-sion of GADD45G in tumor tissues was significantly decreased than that in corresponding normal tissues (P ＜ 0.05),and threre was a significant negative correlation with methylation status of GADD45G proximal promoter and exon 1 (rs=-0.398). Conclusion The decreased expression of GADD45G by hypermethylation of proximal promoter exon 1 of the gene may play an important role in gastric cardia adenocarcinoma.

Objective To study the clinical characteristics,pathology,and treatment for papillary carcinoma of the breast.Methods The clinical data of 17 patients of papillary carcinoma of the breast admitted in the First Affiliated Hospital of Wen Zhou Medical College were retrospectively analyzed.Results Papillary carcinoma of the breast accounted for 0.64％ of all breast cancer cases hospitalized during last 10 years.All cases had palpable lumps in the breast.12 cases received modified radical mastectomy,2 cases received simple mastectomy,2 cases underwent breast conservation therapy,1 case underwent simple mastectomy plus sentinel lymph node biopsy.15 patients received postoperative chemotherapy,among those 5 cases also received radiotherapy.During a 32.5-month median follow-up ( 1 month to 8 years),one case with bone metastases died 2 years postoperatively and another one died of multimetastases 7 years later.Conclusions The prognosis of papillary carcinoma of the breast is closely related with its pathology type.For intraductal papillary carcinoma low-traumatic therapy is applicable,while in case of infiltrating papillary carcinoma or invasive micropapillary carcinoma ( IMPC ),more aggressive therapies like that adopted for infiltrating ductal carcinoma are recommended.

Objective To study the effect of Bi-level positive airway pressure (BiPAP) on hemodynamics in patients with the chronic obstructive pulmonary disease (COPD) combined coronary heart disease.Methods One hundred patients with COPD combined coronary heart disease treated by BiPAP ventilation were enrolled.The blood gas analysis and the hemodynamics were monitored and analyzed in patients with the COPD combined coronary heart disease before treatment and after BiPAP ventilation treatment for 2 hours,24 hours,72 hours and 1 week.Results PaCO2 decreased significantly after 2-hour's treatment by BiPAP ventilation( P ＜ 0.05) and the heart rate and systolic blood pressure also decreased significantly after 24-hour's treatment by BiPAP ventilation.The left ventricurlar ejection fraction( [ 65.63 ± 6.86 ] ％ vs.[ 56.21 ±5.26]％,P ＜ 0.05 )was significantly improved after BiPAP reatilation treatment for one week.The mean pulmonary arterial pressure ( [ 3.74 ± 0.96 ] vs [ 5.12 ± 1.12 ] kPa,P ＜ 0.01 ),angina pectoris ( [ 0.20 ± 0.01 ]time/d vs [ 0.69 ± 0.03 ] time/d,P ＜ 0.05 ) were significantly decreased.Conclusion COPD combined coronary heart disease patients may achieve an optimal effect by BiPAP ventilation.BiPAP ventilation has no impact on the hemodynamics in patients with the COPD combined coronary heart disease.

Objective To analyze the effect of Shuxuetong injection on microcirculation in patients with septic shock and its therapeutic effect. Methods A prospective study was conducted. Eighty patients with septic shock treated in Department of Critical Care Medicine of Hebei Provincial Traditional Chinese Medical Hospital were randomly divided into a Shuxuetong group and a conventional therapy group according to random number table, 40 cases in each group. The conventional treatment in the two groups was energetically carried out in accord to the sepsis shock guidelines, such as positive fluid resuscitation, anti-infection, etc. In the Shuxuetong group, additionally Shuxuetong injection 6 mL in 5% glucose injection 250 mL intravenous drip was given once a day for 7 days. The levels of urine output, lactic acid (Lac), blood urea nitrogen (BUN), creatinine (Cr), aspartate aminotransferase (AST), alanine aminotransferase (ALT), left ventricular ejection fraction (LVEF), and cardiac index (CI) in the two groups were observed before and after treatment; the total dosages of dopamine, dobutamine, noradrenaline, etc. vascoactive agent used for the patients and 28-day mortality in the two groups were also recorded. Results The comparisons of levels of urine output, Lac, BUN, Cr, AST, ALT, LVEF, and CI before treatment between the two groups were of no statistical significant differences (all P>0.05). After treatment in the two groups, the urine output, LVEF, and CI were increased compared with those before treatment, whereas the Lac, BUN, Cr, AST, and ALT were significantly decreased, and the changes were more obvious in Shuxuetong group [urine output (mL/h):112.1±39.8 vs. 73.3±28.5, LVEF:0.49±0.15 vs. 0.44±0.14, CI (mL·s-1·m-2):66.2±5.7 vs. 54.2±6.2, Lac (mmol/L):3.83±1.65 vs. 4.72±2.25, BUN (mmol/L):7.1±2.7 vs. 9.3±3.5, Cr (μmol/L): 73.9±16.2 vs. 95.7±15.8, AST (U/L): 39.8±9.5 vs. 45.8±12.7, ALT (U/L):34.3±9.7 vs. 41.7±11.3, all P<0.05]. The total dosages of all kinds of vascoactive agent of Shuxuetong group were remarkably less than those in the conventional therapy group [dopamine (mg): 993.1±261.7 vs. 1 340.9±356.4, dobutamine (mg):776.2±281.0 vs. 1 049.2±364.3, noradrenaline (mg):56.4±34.6 vs. 107.6±51.3, all P<0.05]. The 28-day mortality of Shuxuetong group was obviously lower than that of conventional therapy group [40.0%(16/40) vs. 60.0%(24/40), P<0.05]. Conclusion Shuxuetong injection can improve the microcirculation perfusion in patients with septic shock and reduce their mortality.

ObjectiveTo study the effect of fluorine on proliferation of osteoblast through extra cellular signal-regulated protein kinase(ERK) signaling pathway.MethodsMouse osteoblasts(MC3T3-E1) were cultured in vitro with different concentrations of fluoride for 24 and 48 h (the concentrations of Fˉ were 0,200,400,600,1000,2000,4000,8000,10 000 μmol/L,respectively).The optimum concentration for promotion of cell proliferation was determined by methylthiophene tetrazolium(MTT) assay.According to the optimum concentration,the cells were randomly divided into three groups:control group (0 μmol/L Fˉ); fluorine group (400 μmol/L Fˉ); fluorine and MAPK inhibitor PD98059 group(400 μ mol/L Fˉ + 10 μ mmol/L PD98059).Cell cycle was detected by flow cytometry after 48 h culture.The expression of P-ERK protein was determined by Western blotting and immunofluorescence.ResultsThe optimum concentration of fluorine for proliferation of osteoblasts was 400 μ mol/L.Compared with the control group[(76.12 ± 10.08)％,(2.06 ± 0.31)％],the number of cells in G0/G1 phase[(63.04 ± 8.12)％] reduced and the number of cells in S phase[(9.13 ± 2.08)％] increased in fluorine group (all P ＜ 0.05) ; but the number of cells in G0/G1 phase [(92.11 ± 9.01 ) ％] in fluorine and mitogen-activated protein kinases (MAPK) inhibitor PD98059 group was significantly increased(P ＜ 0.05 ).Western blotting results showed that:compared with the control group[(100.00 ± 0.00)％],the expression of P-ERK protein in fluorine group[(131.24 ± 13.88)％] was significantly higher(P ＜ 0.05 ),but the expression of P-ERK protein in fluorine and MAPK inhibitor PD98059 group [(91.33 ± 9.68 )％] was not significantly changed(P ＞ 0.05).The results of immunofluorescence were similar to that of Western blotting.ConclusionsFluorine at the concentration of 400 μmol/L can promote the proliferation of osteoblasts.ERK signaling pathway has played a key role in the proliferation of osteoblasts.

BACKGROUND:We have designed and manufactured a novel artificial cervical vertebra and intervertebral complex (ACVC) which combines the cervical titanium cage with the artificial cervical disc, and also developed the ACVC with a hydroxyapatite biocoating (ACVC-HA). OBJECTIVE:To evaluate biomechanical properties of the joint system, and the role of HA coating in promoting osseointegration and long-term stability. METHODS:Twenty-four goats were randomly divided into three groups and underwent the anterior C2/3 and C3/4 discectomy, and C3 subtotal corpectomy, fol owed by ACVC implantation (group 1) and ACVC-HA implantation (group 2), and given no intervention (black control group), respectively. group. At 12 weeks after surgery, C1-5 samples were col ected to undergo biomechanical tests and histological staining. RESULTS AND CONCLUSION:Prior to the fatigue test, compared with the blank control group, the range of motion and neural zone of groups 1 and 2 in the directions of flexion-extension and lateral bending showed no significant differences, but the above indicators were significantly increased in the direction of rotation (P<0.05). Additional y, the stiffness in al three directions was significantly lower than that in the blank control group (P<0.05). There were no significant differences in the range of motion and neural zone in al directions between groups 1 and 2. Similar results were found after the fatigue test. The histological staining showed that both two implants had good biocompatibility and abradability, but more new bone formed on the ACVC-HA. These results suggest that ACVC can effectively reconstruct the motor function of the cervical spine after decompression. Furthermore, HA coating can markedly improve bone-implant interface to promote osseointegration.

Breast Neoplasms ; diagnosis ; pathology ; Female ; Humans ; Leiomyosarcoma ; diagnosis ; pathology ; Middle Aged ; Skin Neoplasms ; pathology ; secondary