Objective To explore the best opportunity of termination of pregnancy and conservative therapy in the treatment of lata trimester of pregnancy combining hypertension or preeclampsia.Methods The clinical data of 198 patients with pregnancy combining hypertension or preeclampsia were studied retrospectively.Among the total patients,107 patients performed conservative therapy (conservative therapy group),91 patients performed termination of pregnancy (termination of pregnancy group).The prognosis of two groups was compared,including maternal and neonatal complications and morbidity and mortality.ResultsThe cesarean section rate of conservative therapy group was 54.2％ (58/107),termination of pregnancy group was 51.6％(47/91 ),there was no significant difference between two groups(P＞0.05 ).The perinatal complication rate of conservative therapy group and termination of pregnancy group was 15.9％(17/107) and 17.6％( 16/91 ),there was no significant difference between two groups(P＞0.05).The rate of placental abruption,low platelet disease,hypoproteinemia,postpartum hemorrhage between two groups had no significant difference (P＞0.05).Conservative therapy group had 3 cases neonatal asphyxia,1 case neonatal death.Termination of pregnancy group had 7 cases neonatal asphyxia,1 case neonatal death.The rate of adverse events of conservative therapy group had no significant difference compared with termination of pregnancy group (P＞0.05 ).The perinatal average weight of conservative therapy group was (2.635 ± 0.446)kg,termination of pregnancy group was (2.014 ±0.721) kg,there was significant difference (P＜0.05).Conclusion Under the premise of control blood pressure,spasmolysis,ensure maternal and neonatal safety,expectant monitoring can give more chances for fetuses to get more mature so decrease the complications.

Objective To analyze the association between pre-pregnancy body mass index,pregnancy weight gain and gestational diabetes(GDM).Methods The pre-pregnancy body mass index,pregnancy weight gain and the incidence data of 345 gestational diabetes with full-term primiparae were analyzed.Results The GDM ratio of low-weight,ideal weight group,over-weight was 2.78％,2.96％,16.04％,respectively over-weight GDM pregnancy was significantly higher than the ideal weight group( x2 =4.269,P ＜0.05),and GDM over-weight before pregnancy was significantly higher than the low weight group the incidence of GDM,the difference was statistically significant( x2 =17.299,P ＜0.01 ) ;Pregnant women in different pregnancy weight gain A( ＜ 11.0kg),B( 11.0 ～ 17.9kg),C( 18.0～24.9kg),D(≥25.0kg) range,the GDM were 0％,1.75％,6.60％,11.02％,that GDM of A,B,C,D group were statistically different( P ＜ 0.05 ).Rate of weight gain during pregnancy on pregnancy size was proportional to the impact of diabetes.Conclusion Pre-pregnancy body mass index,pregnancy weight gain had clinical significance in evaluation of gestational diabetes.

Objective To guarantee the quality of measurenents with the radon-thoron discriminative detectors of our laboratory.Methods LD-P radon-thoron discriminative detector participated in the international intercomparison for integrating radon/thoron detectors organized by National Institute of Radiological Science (NIRS,Japan).Detectors were sent to NIRS for exposure.Radon intercomparison was conducted with radon chamber providing three levels of exposure:low,medium and high levels.Thoron intercomparison was carried out at thoron chamber,which also provided three levels of exposure:low,medium and high levels.Detectors were posted back to our laboratory for etching and analysis after exposure.Then the measured values were submitted to NIRS.Finally the reference values were informed of us.Results The relative percent difference (RPD) between the measured value and the reference value for radon was-13.8％,-14.4％ and-17.1％ at low,medium and high levels respectively,and that of thoron were-14.4％,8.9％ and-3.2％ at three levels respectively.Conclusions Both radon and thoron measurement of our detectors rank asCategory Ⅰ in the 4th international intercomparisons for integrating radon/thoron detectors with the NIRS radon/thoron chambers.

Objective To study the seasonal variation of indoor 222Rn and 220Rn concentrations in Longdong district,Gansu Province.Methods A total of 44 houses from 5 different types of raw soil architectures and 5 ordinary brick houses from a typical area were selected in Longdong district,Gansu Province in China.The LD-P discriminative 222Rn and 220Rn detectors were used to measure the indoor concentrations of 222Rn and 220Rn during four seasons in one year.Results The indoor concentrations of 222Rn showed a significant seasonal variation,which varied with different types of houses.222Rn concentrations of ordinary brick houses,soil brick houses and the cave dwellings were higher in winter and autumn and lower in summer.The average concentrations of 222Rn were 55.3-90.3 Bq/m3 in winter,36.4-65.7 Bq/m3 in spring,35.6-63.9 Bq/m3 in summer,and 60.7-87.2 Bq/m3 in autumn.For cave dwellings,open-cut cave dwellings and the underground cave dwellings,222Rn concentrations were higher in summer and autumn,and lower in winter and spring.The average concentrations of 222Rn ranged from 139-184 Bq/m3 in winter,135-199 Bq/m3 in spring,179-252 Bq/m3 in summer,172-242 Bq/m3 in autumn.The seasonal variation of indoor 220Rn was basically consistent in six types of houses,and lower in winter and spring and highest in autumn.The average concentrations of 220Rn ranged from 43.4-64.3 Bq/m3 in winter,60.6-537 Bq/m3 in spring,77.7-792 Bq/m3 in summer,63.2-1077 Bq/m3 in autumn.The indoor concentrations of 222Rn and 220Rn were different among different types of houses,and they were generally higher in type of raw soft architectures than in that of ordinary brick houses.Conclusions 222Rn concentrations indoors showed a significant seasonal variation and varied with different types of houses.

Objective To investigate the expression of matrix metalloproteinases-7 (MMP-7) in benign and malignant thyroid tissues and its clinical significance. Methods The expression of MMP-7 in 50 thyroid cancers, 45 adenoma and 20 adjacent noncancerous portion tissues were studied by microwave-LSAB immunohistochemical method. Results The positive rate of MMP-7 in thyroid cancer was 64. 0%, which was significantly higher than 37. 0% in adenoma and 25.0% in adjacent noncancerous portion(X_2=8. 72,6. 52, P < 0.01 ). No correlation was observed between the expression of MMP-7 and histological grading of thyroid cancer. The expression of MMP-7 in lymph node metastasis and Grade Ⅲ～Ⅳ were both higher than that in negative cases and in Grade Ⅰ～Ⅱ ( P < 0. 05 ). The percentage of recurrence and death in MMP-7 positive cases were notably higher than that in negative cases( P <0. 05). Conclusion The expression of MMP-7 can be regarded as a parameter for evaluating the degree of malignancy, biological behavior and prognosis of thyroid cancer.

Adult ; Humans ; Imaging, Three-Dimensional ; Jaw Fixation Techniques ; Joint Dislocations ; diagnostic imaging ; etiology ; surgery ; Male ; Mandible ; surgery ; Mandibular Condyle ; diagnostic imaging ; injuries ; surgery ; Mandibular Fractures ; complications ; diagnostic imaging ; surgery ; Tomography, X-Ray Computed

Objective To investigate the levels and distribution of radon in dwellings in Shenzhen cities of China.Methods A total of 108 low-,multi-,middle-and high-rise buildings were selected.Indoor radon concentrations were measured by using solid track detector.Results The arithmetic mean of indoor radon concentrations in Shenzhen was 64 Bq/m3,and geometric mean was 58 Bq/m3,in range of 15 to 155 Bq/m3.The average indoor radon concentration in Bao'an district was 50 Bq/m3 with the lowest value,and that in Pingshan new district was 87 Bq/m3 with the highest value.There were 12 measuring points where indoor radon concentrations were higher than 100 Bq/m3 in Shenzhen,accounting for 11.1％ of the total number.Shapiro-Wilk test showed that the frequency distribution of indoor radon concentration in Shenzhen follows lognormal distribution (P ＞ 0.05).The indoor radon concentrations showed a downward trend from 1990 to 2015.The indoor radon concentration decreases with the elevated floors except 10th and above floors.Conclusions The indoor radon concentrations in Shenzhen increased by 35％,compared to the previous investigations.It is recommended that efforts continue to improve radioactive materials standards about building material and to enhance the natural ventilation in high-rise buildings in order to lower the radiation hazards from radon.

Objective To investigate the alteration of the cytoskeleton of airway smooth muscle cells in young asthmatic rats with airway remodeling and the effect of RhoA/ROCK signal pathway.Methods Airway smooth muscle cells (ASMCs) were primary cultured and purified from Sprague-Dawley(SD) rats that were induced by ovalbumin (OVA) inhalation for 8w,then incubated by Pho kinase inhibitor Y27632.Real time quantitative polymerase chain reaction (RT-PCR),Western blot,and immunohistochemistry were used to measure the alteration of F-actin,and α-tubulin in the cytoskeleton of airway smooth muscle.Results (1) The asthma group showed a high average gray value of F-actin in ASMC than control groups,especially 8 weeks;and were significantly down in the group after adding Y27632(P ＜0.01).(2) The intension and intensity of fluorescence signal of α-tubulin in asthma groups in 8 weeks were higher than control greup(P ＜0.01),and were significantly decreased in Y27632 group.(3) A higher expression of α-tubulin protein was shown in the asthma group in 8 weeks relative to control group(P ＜0.01),and was significantly down-regulated in Y27632 group(P ＜0.05).Conclusions Alteration of the cytoskeleton of airway smooth muscle exists in young asthmatic rats and the RhoA/ROCK signal pathway possibly plays a significant role.

Objective To investigate the correlation of expression of SLeX and p16 gene protein with the potential of invasion and metastasis in papillary thyroid carcinoma(PTC). Methods The expression of SLeX and p16 gene protein in 69 cases of PTC were studied by microwave-labelled strept-avidin biotin immunohistochemical method. Results The positive rates of SLeX and p16 in PTC were 69.6% and 58.0% respectively. The posi-tive rate of SLeX expression in the patients with tumor invasion and lymphatic metastasis was significantly higher than that without tumor invasion and lymphatic metastasis (P<0.05). But the positive rate of p16 expression in the patients with tumor invasion and lymphatic metastasis was significantly lower than that without tumor invasion and lymphatic metastasis (P <0. 05). There was a negative correlation between SLeX and p16 expression in PTC (P <0. 05). Conclusions Expression of SLeX and p16 protein were closely correlated with the invasive and metastasic potential in PTC. SLeX and p16 could be considered as prognostic indications for PTC.

Objective To investigate the effect of small dose of dexmedetornidine on venous continuous infusion combined with oxycodone or fentanyl during brachial plexus blockade.Methods Sixty thyroid patients (ASA Ⅰ or Ⅱ) undergone brachial plexus anesthesia for cutting or cutting thyroid tumor patients were randomly and double-blindly into three groups (n =20 in each group).Group A:single brachial plexus anesthesia;group B:dexmedetornidine combined with fentanyl;group C:dexmedetornidine combined with oxycodone.Blood pressure (Bp),heart rate (HR),the determination of plasma norepinephrine (NE),cortisol (Cor),the concentration of blood glucose (Glu),VAS,Ramsay calm score,local anesthetics dosage and side effect formation rate at the beginning operation (To),skin incision (T1),separation of the glands (T2),gland excision (T3),and the end of the surgery (T4) were recorded.Results Compared to group A,the mean arterial pressure (MAP),HR,NE,Cor,and Glu were much lower at each time point (P ＜ 0.05) in groups B and C;Ramsay calm score and VAS score were significantly better at each time point (P ＜ 0.05);the incidence of chills and lidocaine additional quantity were significantly lower (P ＜0.01).However,compared to groups A and C,choking cough response rates were much higher in group B (P ＜ 0.01).Conclusions Small dose of dexmedetornidine on venous continuous infusion combined with oxycodone during brachial plexus blockade for thyroid patients both can eliminate the preoperative patients nervous anxiety,and effectively restrain perioperative stress response,maintain hemodynamics stable,implementation of intraoperative awaken to reduce complications.It is the new choice of anesthetic adjuvant.