Objective: To observe the protective effect of ligustrazine on myocardial ischemia rat induced by isoproterenol. Methods : The model of myocardial ischemia was induced by subtcuaneous injection of isoproterenol (ISP, 5mg?kg -1 ) into rats and repeated the same dose 24 hours later. The activities of Ca 2+ -ATPase、Ca 2+ -Mg 2+ -ATPase and the contents of Ca 2+ in the myocardial mitochondria were observed, respectively. The changes of protein expression of bcl-2 and bax genes were detected by immunohistochemical staining. Results : In the ligustrazine treated group, as compared with those of the model, the activities of Ca 2+ -ATPase、Ca 2+ -Mg 2+ -ATPase in the myocardial mitochondria increased significantly( P 0.05). Conclusion : Ligustrazine possesses protective effects against myocardial ischemia injury via increasing the activities of Ca 2+ -ATPase、Ca 2+ -Mg 2+ -ATPase in the myocardial mitochondria and influencing the expression of bcl-2.

Objective To explore the effect of nuclear factor-kappa B (NF-κB) decoy oligode-oxynucleotides (ODN) on respiratory function and expressions of IL-1β and IL-13 in serum following se-vere lung contusion in rabbits. Methods A total of 40 New-Zealand rabbits were randomly divided into four groups, ie, severe lung contusion group (Group A, n=12), severe lung contusion with NF-κB scrambled decoy ODN intervention group (Group B, n=12), severe lung contusion with sense NF- B de-coy ODN intervention group (Group C, n=12) and normal control group (Group D, n =4). After the contusion model was set up, the sense and scrambled NF-κB decoy ODN were infused into the rabbits via the jugular veins in different groups, with 20 g per experimental rabbit. After contusion, respiratory fre-quency, tidal volume, airway pressure, respiration flow rate curve and end expiration nitric oxide concen-tration were detected at 1, 2, 3 and 4 hours. The expressions of IL-1β and IL-13 in serum were observed by means of ELISA. Results After sense NF-κB decoy ODN intervention, alveolar ventilation, arteri-al PO_2 and pulmonary compliance were improved, compared with Group A and Group B, with statistical difference (P<0.01). The expression of IL-1β was decreased and that of IL-13 increased after sense NF-κB decoy ODN intervention to the severe lung contusion, compared with Groups A and B, with statis-tical difference (P <0.01). The expression of IL-1β was increased to peak level at 1 hour after contu-sion, which continued to the end of the experiment. While expression of IL-13 was decreased at 1 hour af-ter contusion and reached the minimum level at 4 hours. With intervention with sense decoy ODN, the in-creased expression of IL-1β was down-regulated, but expression of IL-13 remained at high level, with sta-tistical difference compared with Group A and Group B (P < 0.01). Conclusions Intervention with sense NF-κB decoy ODN can significantly protect the respiratory function, reduce the expression of IL-1β and increase expression of IL-13 after severe lung contusion.

Objective To investigate the effect of intravenous thrombolytic therapy with urokinase on the neurological function and the concentration of serum matrix metalloproteinase 9 (MMP-9) in the patients with acute cerebral infarction.Methods The patients with acute cerebral infarction were divided into the experimental and control groups.The experimental group included 27 patients who were complied with thrombolytic criterion within 4.5 hours after stroke and were firstly treated by intravenous thrombolytic therapy with urokinase by 100 million units after 24 h and 300 mg aspirin by oral.The control group included 27 cases that were directly administrated by 300 mg aspirin 4.5 hours later after stroke.After 24 h,the two groups were administrated with other same conventional treatments such as neurotrophy,improvement of microcirculation,and control of blood-fat.The neurological function and dynamic concentration of serum MMP-9 were observed before treatment and after treatment.Results After treatment,the neurological deficit evaluation score in both groups was gradually reduced with the treatment time,and the neurological deficit evaluation score in the experimental group was significantly lower than that in the control group at the 1 st,3rd,and 14th day,respectively[(10.97 ± 1.53) Score vs (15.67 ±1.78)Score,t =8.35,P =0.03;(8.15 ± 1.40) Score vs(12.72 ± 3.31) Score,t =6.62,P =0.03; (5.87 ± 1.03) Score vs (11.92 ±2.05) Score,t =13.70,P =0.01].After treatment,the concentration of serum MMP-9 in both groups was reduced with the treatment time,and serum MMP-9 in the experimental group was significantly lower than that in the control group at the 1st,3rd,and 14th day,respectively[(282.84 ±37.51) ng/ml vs (316.90±36.75)ng/ml,t =3.37,P =0.00;(309.11±37.71)ng/mlvs (348.39 ±15.26) ng/ml,t =5.02,P=0.04;(264.68±31.91)ng/ml vs (302.81 ±36.30)ng/ml,t =4.10,P =0.03].Conclusions Intravenous thrombolytic therapy with urokinase can effectively reduce the neurological deficit and the produce of MMP-9 in patients with acute cerebral infarction.

Objective To study the synergistic antitumor effects of quercetin and cisplatin in human prostate cancer PC3 cells and LNCaP cells.Methods Twelve h after PC3 cells or LNCaP cells were seeded,different dose of quercetin (10 μmol/L,20 μmol/L,40 μmol/L,80 μmol/L,160 μmol/L) or cisplatin (0.01 μmol/L,0.05 μmol/L,0.1 μmol/L,1 μmol/L,10 μmol/L),or quercetin (20 μmol/L) + cisplatin (0.01 μmol/L,0.05 μmol/L,0.1 μmol/L,1 μmol/L,10 μmol/L) were added for48 h and then the antiproliferative effects were detected with MTT assay.After incubated with quercetin (20 μmol/L) or cisplatin (0.05 μ mol/L),or quercetin (20 μ mol/L) + cisplatin (0.05 μmol/L) for48 h,cell cycle distribution and apoptosis of PC3 cells or LNCaP cells were detected by flow cytometer,PI and Annexin V staining.Protein expression was detected by Western blotting.Results After treatment with quercetin or cisplatin alone,the IC50 were (0.99 ± 0.13) μmol/L,(0.75 ± 0.09) μmol/L and (91.60 ± 6.10) μ mol/L,(72.90±4.70) μ mol/L for LNCaP cells or PC3 cells,respectively;The IC50 were (0.11±0.06)μ mol/L,(0.07±0.02) μmol/L for quercetin + cisplatin treatment (Compared with quercetin,P＜0.01 ;Compared with cisplatin,P＜0.05.After treatment with cisplatin or quercetin + cisplatin for 48 h,the S phase percent of LNCaP cells or PC3 cells were (22.4±2.7)％,(31.2±2.4)％ and (20.1±1.6)％,(31.0±2.5)％,respectively,(Compared with control,P＜0.05,however,treatment with quercetin alone has no significant difference (Compared with control,P＞0.05).After treatment with cisplatin or quercetin + cisplatin for 48 h,the apoptotic percent of LNCaP cells or PC3 cells were (14.8 ± 1.9) ％,(39.6 ± 3.1) ％ and (11.5± 1.2) ％,(34.1 ±3.3) ％,respectively,(compared with control,P ＜ 0.05,however,treatment with quercetin alone had no significant difference (compared with control,P＞0.05).After treatment with quercetin alone for 48 h,the activation of caspase-3,caspase-8 and caspase-9 were slightly increased,the expressions of Bax and p21 were up-regulated,the expressions of Bcl-2 and CDK2 were down-regulated.Furthermore,these effect of cisplatin and quercetin + cisplatin were significantly enhanced (compared with quercetin,P＜0.05;compared with quercetin,P＜0.01,respectively.Conclusions The combination modality with quercetin and cisplatin has a better treatment effect in vitro not only in androgen-dependent LNCaP cells but also in androgen-independent PC3 cells.

Objective To assess ventricular function of early stage neonates of different gestational ages by tissue doppler imaging(TDI).Methods Pulsed wave TDI velocities were obtained in 36 cases of premature infants with gestational ages of 32 to 36 weeks(premature group) and 33 cases of full-term infants(full-term group) aged 3 to 7 days at the lateral mitral annulus(MA),basal septum,and lateral tricuspid annulus(TA) during ventricular systole(Sa),early diastole(Ea),late diastole(Aa).Tansmitral and transtricuspid inflow were also obtained through pulsed doppler echocardiography.Results Ea and Sa in all of 3 locations were lower in the premature group compared with that of the full-term group,and Ea/Aa in TA was lower in premature group,but Aa and E/Ea showed no difference between 2 groups.Ea and Sa showed a positive correlation with gestational age and birth weight.Conclusions Ventricular systolic and diastolic function in premature infants are poorer than that in full-term infants in the early stage of neonatal period,and ventricular function is related to intra-uterus growth and maturity of the newborn.Diastolic function of the left ventricle in both groups develops rapidly during the early stage of neonatal period.

Humans ; Polyomavirus ; classification ; Polyomavirus Infections ; virology

Dideoxynucleosides ; False Positive Reactions ; Fluorine Radioisotopes ; Fluorodeoxyglucose F18 ; Humans ; Inflammation ; diagnosis ; Neoplasm Staging ; Neoplasms ; diagnosis ; metabolism ; pathology ; radiotherapy ; Positron-Emission Tomography ; methods ; Radiotherapy, Intensity-Modulated ; Sensitivity and Specificity ; Tomography, X-Ray Computed ; Treatment Outcome

Objective To evaluate the effect of using serf-designed facial support in prone position for patients after vitrectomy and silicone oil tamponade. Methods 100 patients with vitrectomy and sili-cone oil tamponade were randomly divided into the experimental group and the control group with 50 pa-tients in each group. The self-designed facial support in prone position was used in the experimental group, while the routing nursing measure was used in the control group. The ocular adverse effect and re-lapse rate were compared between the two groups. Results The incidence rate of corneal edema, in-creased intraocular pressure and retinal redetachment in the experimental group was higher than those in the control group, the time of keeping position in the experimental group was longer than that in the con-trol group. Conclusions Self-designed facial support in prone position can decrease discomfort and pain caused by compulsive position, reduce the incidence of complications, improve retinal attachment and increase the successful rate for the patients with vitrectomy and silicone oil tamponade.

Objective To report a case of Majocchi's granuloma induced by var. raubitschekii of Trichophyton rubrum, and to evaluate the relationship between deep and superficial fungal infection with genotyping technique. Methods The patient underwent physical, pathological and mycologic examination,which included microscopic observation, fungal culture, and urease reaction. The sequence of intertranscribed spacer (ITS) of rDNA was analysed by PCR and sequencing. Isolates from affected toes and tissue as well as one reference strain and six clinical strains of T. rubrum, were subjected to analysis of the tandem repeat subelement(TRS-1) in nontranscribed spacer(NTS)of rDNA by PCR. Results A 48-year-old female patient presented with a 2-month history of red papules and nodular lesions on the back, buttock and thigh,as well as a 3-year history of onychomycosis which had become more severe after a liver transplantation 9 months before. Pathological and mycologic examinations confirmed the diagnosis of Majocchi's granuloma. The pathogen was identified as var. raubitschekii of T. rubrum by microscopic examination, fungal culture, positive urease reaction and the sequence of ITS. As shown by the amplications of TRS-1 of NTS, the genotypes of strains from affected nails and tissue were identical, but differed from those of other clinical strains of T.rubrum. Conclusions There is a polymorphism in TRS-1 of rDNA NTS of T. rubrum, with the genotypes of isolates from affected nails and tissue being identical, which suggests they are of the same origin.

ObjectiveTo study the relationship between subjective well-being and family care degree of medical college students.Methods2695 medical college students were tested by Family APGAR index and Oxford Happiness Test-Revised.The data was analyzed by independent-sample t test,pearson correlations and linear regression.Results ( 1 ) The subjective well-being and family care degree and its factors of college students were above average.The score of subjective well-being was 43.08 ± 11.16,and the score of family care degree was 6.48 ±2.39.(2)The family care degree( t=3.462,P＜0.01) and its adaptation( t=2.718,P＜0.01),partnership( t =4.178,P＜0.01),and growth( t=4.484,P＜0.01 ) of female students were higher than male students.The family care degree ( t =3.939,P ＜ 0.01 )and its adaptation ( t =4.683,P ＜ 0.01 ),partner-ship ( t =3.306,P＜ 0.01 ),and growth ( t =2.796,P ＜ 0.01 ) and subjective well-being( t =3.508,P＜ 0.01 ) of the students who came from cities and towns were higher than the students who came from rural.(3)There was a significant relation between subjective well-being and family care degree and its factors( r=0.197 ～ 0.357,all P＜0.05 ).The partner-ship,resolve,growth and affection can forecast together the 13.2％ variance of subjective well-being.ConclusionEnhancing family care degree is contribute to the subjective well-being and psychological health of medical college students.