0.05).Conclusion The isotonic contrast medium has litter effect on the renal function of the patients with high risk factors.

Objective To detect the expression levels of RAD21(S.Pombe RAD21 homolog)in lung cancer,and assess its clinical significance and potential functions. Methods The expression level of RAD21 in lung cancer was determined by Western blot and immunohistochemistry meth?ods;the RAD21 mRNA expression in lung cancer was analyzed through Oncomine database;the relationship between the RAD21 expression levels and prognosis in patients with lung cancer was studied by Kaplan Meier curve;the RAD21 functions in lung cancer were predicted by using gene set enrichment analysis. Results Compared with adjacent normal tissue,the protein level of RAD21 in lung tissues were upregulated . The data from Oncomine database showed that RAD21 mRNA levels were significantly higher than the normal control groups in multiple lung cancer datasets(P<0.01);in addition,Kaplan?Meier survival curves showed that the RAD21 expression levels was correlated with the survival of patients with lung can?cer(P<0.05);gene set enrichment analysis indicated that RAD21 was mainly enriched in apoptotic signaling pathways and cell cycle regulation gene sets. Conclusion The downregulated RAD21 could be used as a biomarker to assess the prognosis of lung cancer patients. In addition, RAD21 may be involved in the regulation of cell cycle and apoptosis,which affects the development and progression of lung cancer.

Objective To investigate the effects of propofol on the spontanous rhythmical respiratory discharges (SRRDs) in the isolated medulla spinal cord preparation of newborn rats and its possible mechanism Methods Newborn SD rats (0 3 days) of either sex were used Isolated medulla spinal cord preparation was made according to the method of Suzue, et al Brain stem was severed between medulla and pons and spinal cord was severed between cervical and thoracic segments Efforts were made to keep the ventral root of the cervical spinal nerves of possible, while the medulla spinal cord preparation was being removed The medulla spinal cord preparation was placed with the ventral side facing up in the bath continuously perfused with modified Krebs solution (MKS)(3 4ml/min,T=27℃, pH=7 3 7 4, 95% O 2 5% CO 2) glass adsorb electrodes containing Ag AgCl needle were attached to the rentral root of C 4 or C 5 spinal nerve SRRD were recorded, Forty eitht isolated medulla spinal cord preparations were divided into 7 groups: groupⅠ: control group in which preparation was perfused with MKS only; groupⅡ Ⅳ: propofol groups in which preparation was perfused continuously for 3 min with different concentrations of propofol (5, 20, 50, 100, 250 ?mol/L); group Ⅶ: bicuculine propofol group in which preparation was continuously perfuse for 3min with a specific GABAA receptor blocker, bicuculine (20?mol/L) followed by perfusion of propofol(20?mol/L) for another 3 min SRRDs were recorded before and 1, 3, 5, 10, 15, and 30 min after propofol or bicuculine propofol perfusion Results 1) In control group, there was no significant change in SRRDs at the designated time internals 2) In group Ⅱ Ⅵ after propofol perfusion, the bursts of SRRDs were inhibited in a concentration dependent manner, but at 1 3 min SRRD showed a temporary excitation (frequency increased and expiratory time became shorter), at 5 min frequency began to slow down and expiratory time became prolonged, at 15 min in 7 out of preparations were stopped in group Ⅵ (propofol 250 ?mol/L) Inspiratory time did not change significantly after propofol in all propofol groups, but integral area of discharge (IAD) of SRRD showed some enlargement until SRRDs stopped 3) with bicuculine(20 ?mol/L) pretreatment, SRRDs did not change significantly after perfusion with propofol (20 ?mol/L) Conclusions Propofol inhibits SRRDs in a conecntration dependent manner as shown by prolongation of expiratory time GABAA receptor may play an important role in inhibitory action of propofol on the isolated medulla spinal cord preparation from newborn rats

Objective To study the mRNA expression and function of TGF-?1, TGF-?RⅡ and CD105 in the lesional, non-lesional skin of psoriasis and of normal human skin. Methods The RNA of skin tissue was extracted using single-step method of RNA isolation by acid guanidinium thiocyanate. Reverse transcription polymerase chain reaction (RT-PCR) was used to measure the expression of mRNA. Results The mRNA expression of TGF-?1 and TGF-?RⅡ was lower in the epidermis of psoriatic lesion than that of non-lesional psoriatic and normal human skin(P

Objective To determine the pharmacokinetics and pharmacodynamics of chloroprocaine with or without epinephrine for epidural blockade. Methods Twenty ASA physical status Ⅰ or Ⅱ patients of both sexes aged 37-55 yrs weighing 45-80 kg undergoing elective lower abdominal surgery were randomly divided into 2 groups (n = 10 each): group C chloroprocaine without epinephrine and group CE chloroprocaine with epinephrine. The epidural catheter was inserted into epidural space at T12-L4 and advanced toward head for about 4 cm. After correct epidural placement was confirmed,3% chloroprocaine 6 mg?kg-1 with or without 1:200 000 epinephrine was injected into epidural space over 2 min. Onset time of analgesia , motor blockade and degree of motor blockade at 20 min after epidural injection (Bromage scale 0 = no motor block, 3 = unable to flex hip, knee and ankle) were recorded. Blood samples were taken from radial artery before and at 3, 6, 9, 11, 13, 15, 17, 20, 30, 45, 60, 90 min after epidural injection for determination of plasma chloroprocaine concentration by HPLC. Results The two groups were comparable with respect to demographic data. There were no significant differences in the pharmokinetics and pharmacodynamics of chloroprocaine between the two groups. The Cmax was (0.491?0.47) mg?L-1 and (0.32?0.22) mg?L-1; The Tmax was (8?3) min and (9?4) min; the AUC was (10?6) ?g?min?ml-1 and (7?4) ?g?min?ml-1;the K was 0.32?0.21 min-1 and 0.36?0.32 min-1 in group C and CE respectively. Conclusion Epinephrine 1:200 000 does not affect the pharmacokinetics and pharmacodynamics of 3 % chloroprocaine for epidural block.

Acute Disease ; Adult ; Angioplasty, Balloon, Coronary ; adverse effects ; Humans ; Hypopituitarism ; etiology ; therapy ; Male

Objective To investigate the effects of hypothermia combined with sevoflurane on myocardial monophasic action potential (MAP) and transmural dispersion of repolarization (TDR) of the left ventricle in rabbits in vitro. Methods Adult rabbits weighing 1.5-2.0 kg were sacrificed after heparinized and anesthetized.The hearts were immediately removed and perfused with K-H soluation saturated with 95%O2-5%CO2 at 37℃ in a Langendorff apparatus. Forty-eight isolated hearts were randomly divided into 6 groups ( n = 8 each): Ⅰ control group (group C), Ⅱ low concentration sevoflurane group ( group S1 ), Ⅲ high concentration sevoflurane group (group S2 ), Ⅳ hypothermia group (group H), Ⅴ hypothermia + low concentration sevoflurane (group HS1 ) and Ⅵ hypothermia + high concentraion sevoflurane (group HS2 ).Group C received continous perfusion. Group S1and S2 received perfusion with K-H solution saturated with 2.4% and 4.8% sevoflurane at 37 ℃ for 30 min respectively. Group H received perfusion with K-H solution at 30℃ for 30 min. Group HS1 and HS2 received perfusion with K-H solution saturated with 2.4% and 4.8% sevoflurane at 30℃ respectively.MAPs of epicardium, mid-myocardium and endocardium of the left ventricle were recorded. MAP duration at 90%repolarization(MAPD90)and TDR were calculated. Early after-depolarization,delayed after-depolarization and arrhythmia were also recorded. Results Compared with group C, MAPD90 of the 3 layers of ventricle was significandy prolonged, the incidence of arrhythmia increased in group H (P＜0.05). There was no significant difference in TDR among all groups ( P＞0.05). There was no interaction between sevoflurane and hypothermia (P＞0.05), and it only showed that MAPD90 was prolonged by hypothermia (P ＜0.05 ). Conclusion Hypothermia combined with sevoflurane exerts no significant effects on myocardial MAP and TDR of ventricles in rabbits, and sevoflurane decreases the incidence of hypothermia-induced arrhythmia through inhibiting the prolongation of MAPD90.

Objective To investigate the effects of hypothermia combined with sevoflurane on expression of myocardial gap junction protein connexin 43 (Cx43) in isolated rabbit hearts.Methods Healthy adult rabbits of both sexes,weighing 1.5-2.0 kg,were sacrificed after anesthetization.The hearts were rapidly excised and perfused in a langendorff apparatus with K-H solution saturated with 95％ O2-5％ CO2 at 37 ℃ in a langendorff apparatus.Forty isolated hearts were randomly divided into 4 groups (n =10 each):control group (group C),hypothermia group (group H) and hypothermia combined with sevoflurane group (group HS).At 15 min of equilibration,the perfusion with K-H solution was continued at 37 ℃ in group C,K-H solution saturated with 2.4％ sevoflurane was perfused at 37 ℃ in group S,K-H solution was perfused at 30 ℃ in group H,and K-H solution saturated with 2.4％ sevoflurane was perfused at 30 ℃ in group HS.At 30 min of perfusion,myocardial specimens were obtained from the anterior wall of the left ventricle for detection of the expression of Cx43 in myocardial cells (by immunohistochemistry and Western blot).Results Compared with group C,Cx43 expression was downregualted in group H (P ＜ 0.05),and no significant change was found in Cx43 expression in S and HS groups (P ＞ 0.05).Cx43 levels distributed mainly in the intercalated disc in S and HS groups,and in H group the distribution of Cx43 levels in the intercalated disc was less,but the percentages of lateralized Cx43 were increased.Conclusion Sevofurane can inhibit hypothermia-induced down-regulation and distribution disturbance of myocardial Cx43 expression,which may be the mechanism by which sevofurane inhibits hypothermia-induced arrhythmia.

To study the effects of Liangxue Jiedu Decoction, a compound traditional Chinese herbal medicine with the function of blood-cooling and detoxicating, in treating psoriasis in mice and to explore its mechanism.

Objective To investigate the best models of esophageal cancer surgical approaches,lymphadenectomy ranges and postoperative comprehensive treatment.Methods From January 1998 to December 2007 in 10 years,1 162 cases of different parts with esophageal cancer were analysized which were treated with surgically adopting sequential abdomen,chest,neck three-incision approaches.Taking three-step screening way of preoperative imaging,preoperative ultrasound localigation fineneedle aspiration biopsy cytology and intraoperative rapid fieezing pathological examination were applied to make the selectivity of the first-times cervico-thoraco-abdominal three-field lymph node dissection (3FLND),first-times standard thoracoabdominal two-field lymph node dissection (2FLND) and second-times third-field cervical lymphadenectomy.Meanwhile,we implemented actively postoperative comprehensive treatment and observed the overall clinical efficacy and long-term survival.Results In the group of 1 162 cases with esophageal cancer surgery.The operating resection rate was 100 ％,Radical resection of 97.6 ％ (1 134/1 162).Perioperative overall complication rate was 16.4 ％ (191/1 162).Anastigmatic fistula was 0.6 ％ (7/1 162).Five cases dead in 30 days after surgery.The whole group of lymph node metastasis rate was 52.6 ％ (611/1 162),lymph node metastasis degree in 12.1％ (3 092/25 564).Full group of the first-times 3FLND was 348 cases.The positive rate was 94.8 ％ (330/348),Implementing the first-times 2FLND was in 814 cases and the second-times thirdfield cervical lymph node dissection was performed in 89 cases.The postoperative complications of the 3FLND was significantly higher than that of 2FLND (23.6 ％ vs 13.4 ％).The difference was statistically significant (x2 =18.37,P ＜ 0.001).However,The difference was not statistically significant between 3FLND and 2FLND (P ＞ 0.05).There is no significant difference between the first-times 3FLND with the second-times 3FLND accumulating survival (P ＞ 0.05).But different degree of lymph node metastasis determined prognosis.The difference was significant (x2 =35.57,P ＜ 0.001).In our group the postoperative comprehensive treatment application rate was 87.2 ％.Surgery combined with comprehensive treatment overall 1,3,5 years survival rates were 92.1％,69.2 ％,49.6 ％ respectively.Conclusions The sequential three-incision approaches and selectivity of lymph node dissection have the radical nature thoroughly,fewer complications,high quality of life and the long-term survival advantages.It should be a widely used method in the clinical surgery of the esophageal cancer.Implementing the three-step screening way to selecting the first-times 3FLND,the firsttimes 2FLND and the second-times third-field cervical lymphadenectomy that have targeted strongly and high accuracy,a definite object in view and avoiding patient excessive trauma.Applying the comprehensive treatment after surgery and the re-treated of patients with recurrence that can further more improve the longterm survival of patients.The comprehensive treatment should be the target direction of the future development of esophageal cancer.