Objective To analyze risk factors for acute kidney injury after aortic arch operation under deep hypothermic circulatory arrest.Methods Between January 2005 and June 2011,549 cases aortic arch replacement under deep hypothermic circulatory arrest were retrospectively analyzed.According to the occurrence of acute kidney injury they were divided into two groups.Univariate and multivariate analysis (multiple logistic regression) were used to identify the risk factors.Results AKI occurred in 102 cases (18.6％) and 27 cases(4.9％) had dialysis.Multiple logistic regression showed that body mess Index(OR =1.072,95％ CI:1.006-1.141,P =0.031),serum creatinin (OR =1.011,95％ CI:1.006-1.017,P =0.000),cardiopulmonary bypass time(OR =1.006,95 ％ CI:1.002-1.009,P =0.005) and the peak intraoperative glucose level (OR =1.007,95 ％ CI:1.002-1.011,P =0.003) were independent risk factors for AKI.Conclusion The higher BMI,serum creatinin level maybe indicate the occurrence of AKI,and AKI maybe can be reduced by controlling CPB time and intraoperative hyperglycemia.

Aim To observe the influence of emodin on bleomycin-induced pulmonary fibrosis in rats, and explore its protective mechanisms. Methods Sixty SD rats were randomly divided into normal control group, sham operation group, model group, low-dose inter-vention group, high-dose intervention group and pred-nisone group. Each group included 10 animals. Rats in the latter 4 groups were intratracheally administered with bleomycin to establish pulmonary fibrosis model. From the second day, rats in low-and high-dose inter-vention groups were intragastrically treated with 2 mL of 20 and 80 mg · kg-1 emodin, respectively. Predni-sone group were intragastrically administrated with 2 mL of 5 mg·kg-1 prednisone acetate. However, con-trol and model groups were treated with 2 mL of normal saline. All rats were sacrificed on day 28. Pulmonary tissues were then removed, and HE and Masson stai-ning were performed. The contents of hydroxyproline ( HYP ) , malondialdehyde ( MDA ) , superoxide dis-mutase ( SOD) , glutathione-peroxidase ( GSH-Px) and catalase (CAT) in pulmonary tissues were measured. Serum concentrations of tumor necrosis factor-α ( TNF-α) , interleukin ( IL )-6 and IL-17 were detected by enzyme linked immunosorbent assay ( ELISA ) . The expression of Kelch-like ECH-associated protein 1 ( Keap 1 ) , nuclear factor-erythroid 2-related factor 2 (Nrf2) and nuclear factor-κB (NF-κB) p65 in pulmo-nary tissues was analyzed using Western blot. Results The pulmonary inflammation and fibrosis in low-and high-dose intervention as well as prednisone groups was significantly improved when compared with model group ( P<0. 05 , 0. 01 ) . In comparison with normal control group or sham operation group, pulmonary HYP and MDA contents, Nrf2 and NF-κB p65 expression levels in the nucleus, and serum concentrations of TNF-α, IL-6 and IL-17 were increased ( P <0. 01 ) , but pulmonary SOD, GSH-Px and CAT contents and Keap 1 expression levels in the cytoplasm were de-creased ( P <0. 01 ) in model group. Upon treatment with low-and high-dose emodin or prednisone, pulmo-nary HYP and MDA contents, Keap 1 expression levels in the cytoplasm, NF-κB p65 expression levels in the nucleus , and serum concentrations of TNF-α, IL-6 and IL-17 were reduced while pulmonary SOD, GSH-Px and CAT contents and Nrf2 expression levels in the nu-cleus were enhanced as compared to model group ( P<0. 01 ) . The above indicators were significantly im-proved in high-dose intervention and prednisone groups compared with low-dose intervention group ( P <0. 05). Nevertheless, There was no significant differ-ence between high-dose intervention group and predni-sone group ( P >0. 05 ) . Conclusion Emodin may protect against rats with pulmonary fibrosis by enhan-cing antioxidative ability and inhibiting inflammatory response.

To analyze the specific mechanism of Jinxueyuan granules, the relationship between the Jinxueyuan granules increased the saliva secretion of xerostomia model SD rats and excitement of receptors were studied in this experiment. In the study, three groups of xerostomia model rats were successfully established by using M-receptor blockers-4-diphenyl-acetoxy-N-methyl-piperidine (4-DAMP) and atropine, or adrenergic receptor blocker phentolamine; after the modeling, the medicine Jinxueyuan granules were gavaged. According to the clinical dose of Jinxueyuan granules and SD rats body surface area, the rats in atropine group were divided three dose groups respectively, namely low, medium and high dose of Jinxueyuan granules groups. The 4-DAMP group and phentolamine group were gavaged medium dose of Jinxueyuan granules. And the amount of salivary secretion for 150 minutes in all groups continuously were measured, and the effect of Jinxueyuan granules increased salivation and the relationship between characteristics and the receptors were observed; and submandibular gland tissue of the rats was isolated, then the effect of Jinxueyuan Granules for expression of the water channel protein aquaporin-5 (AQP5) in submandibular gland cells was analyzed by the Western blot technology. It was found that the saliva secretion of Jinxueyuan Granules groups was increased significantly, and compared with the saline control group, phentolamine group, 4-DAMP group and atropine group, difference was significant, P < 0.05. There was no significant difference between the low-dose of Jinxueyuan granules group and the saline group, but the medium dose of Jinxueyuan granules group had a significant difference, compared with the saline group (P < 0.05). In the time distribution of increasing saliva secretion, there was a significant difference between the saline and Jinxueyuan granules group in the saliva secretion (P < 0.05). After administration of Jinxueyuan granules, the expression of AQP5 protein in the submandibular gland cells expressing of treatment groups was increased, and compared with the blocker groups, there was a significant difference, P < 0.05. Except the atropine group, there was no significant difference in Jinxueyuan granules relieving the inhibition induced by blocks in phentolamine group and 4-DAMP group, compared with the saline group. Compared the AQP5 expression in three blockers groups, there was no significant difference in the efficacy of Jinxueyuan granules between phentolamine group and 4-DAMP group; but there was a significant difference between the atropine group and other groups (P < 0.05). Therefore, it was considered that the mechanism of Jinxueyuan granules increasing saliva secretion (effectiveness of nourishing Yin and generating body fluid ) possibly through the pathway mediated by muscarinic M receptor, especially M3 receptor, or adrenergic receptor, and increased expression of salivary gland AQP5 membrane, and then stimulate saliva production.
Animals ; Disease Models, Animal ; Drugs, Chinese Herbal ; administration & dosage ; Humans ; Male ; Rats ; Saliva ; secretion ; Salivary Glands ; drug effects ; secretion ; Xerostomia ; drug therapy ; metabolism

Aiming at the cultivation of basic medical science talents, the paper introduced and summarized the background, characteristics and development trends (expand of the team, de-crease of the schooling and increase of the interdisciplinary course) of basic medical science major. Three cultivation models of this major in China were introduced and discussed in the article.

Physiology course has become an important teaching part of non-medical professions in medical colleges,but there are no normative teaching textbooks and the corresponding teaching syllabus for these non-medical professions,which causes teaching contents chaos and affects the teaching effect.According to their attributes and characteristics,the research group explores continuously the physiology teaching contents suitable for non-medical professions,pays attention to contents settings which are common-sense,practical,systematic and flexible,in order to promote physiology teaching development in non-medical professions.

The centres of functional experiment in whole medical colleges accept many new teachers every year,and it is a problem how to improve the new teachers' teaching quality as soon as possible.We have gradually summarized an effective model of training the new teachers in functional science experiment based on the long-term effort.

Methoxyadiantifoline ( MAF) is a new alkloid isolated from Thalictrum Omeience W.T.Wang.During 3 min reperfusion after 10 min of coronary ligation, MAF 5 ?mol/L significantly decreased the incidence of isolated rat hearts with ventricular arrhythmias ( VF and VT ) . It delayed the onset of ventricular fibrillation and shortened its duration and markedly prolonged the time of normal sinus rhythm. It also significantly decreased the release of LDH from the myocardium in isolated rat hearts. In addition , MAF 5 ?mol/L could decrease the heart rate and coronary resistance. The results suggest that MAF possessed protective effects on the reperfusion injury in isolated rat hearts.

Objective To observe the changes of the skeletal development related cells after dihydroorotate dehydrogenase (DHODH) deficiency.Methods The DHODH expression in MC3T3-E1 cells derived from mouse calvaria osteoblast precursor cells was inhibited by specific small interfering RNAs (siRNAs),and cell proliferation,ATP production and expression levels of bone-related genes were investigated in these cells.Results After reducing the DHODH expression by using specific siRNAs,cell proliferation was inhibited and cell cycle was arrested at G1/S stage.In addition,the ATP production was reduced in whole cells,especially in mitochondria.Furthermore,the expression levels of Runt-related transcription factor 2 (Runx2) and osteocalcin (Ocn) mRNAs in the DHODH inhibition group were decreased compared with the control group.Conclusion Inhibiting DHODH protein affects the differentiation and maturation of osteoblasts.The mitochondrial dysfunction in osteoblasts may be one of causes leading to the abnormal bone formation in Miller syndrome.

Objective To explore the effect of Da Vinci robot?assisted laparoscopic radical prostatecto?my on the respiratory function of elderly in Intensive Care Units( ICU) . Methods Thirty?nine elderly patients received Da Vinci robot?assisted laparoscopic radical prostatectomy ( RARP ) from January 2015 to April 2016 and 25 cases received conventional laparoscopic radical prostatectomy from January 2014 to December 2014 ad?mitted into ICU were retrospectively analyzed. Their comorbidities,blood loss and transfusion during surgery,ate?rial blood gas(ABG) analysis and respiratory complications after operation,clinical outcomes between the two groups were compared. Results Compared with conventional laparoscopic radical prostatectomy,RARP group spent more time in surgery((4. 23±1. 44) h vs. (3. 25±1. 31) h,t=2. 783,P<0. 05),more patients need venti?lation(11 vs. 1,χ2=4. 378,P<0. 05) . ABG analysis showed respiratory and metabolic acidosis with lower pH (7. 29±0. 09 vs. 7. 35±0. 05,t=3. 886,P<0. 05),HCO3?((20. 05±2. 50) mmol/L vs. (22. 86±2. 53) mmol/L,t=3. 473,P<0. 05),BE(-5. 11±3. 94 vs.-3. 64±1. 17,t=5. 018,P<0. 05) and higher pCO2(46. 15±8. 31 vs. 40. 25±6. 57,t=2. 475,P<0. 05),Lac((3. 54±1. 99) mmol/L vs. (2. 91±1. 39) mmol/L,t=2. 254,P<0. 05) . Conclusion RARP may cause carbon dioxide retention and respiratory complications on elderly pa?tients. It may reduce postoperative respiratory complications by shortening surgery time,lowering pneumoperitone?um pressure,hyperventilation,recruitment maneuvers and chest physical therapy.

ObjectiveTo investigate the clinical features and pregnant outcomes of the pregnant women with congenital adrenal hyperplasia (CAH) 21-hydroxylase deficiency (21-OHD).MethodsThe clinical features,therapies,pregnant outcomes of the pregnant women with 21-OHD were retrospectively reviewed in Peking Union Medical College Hospital,from January 2005 to April 2011.ResultsThere were 8 pregnant womenwith 21-OHD including 5siinplevirilizing patientsand 3nonclassical 21-OHD women.Eightpatientswereacceptedprogestationalandprenatalcontinuallowerglucocorticoid treatment.During the gestational period,the dosage of glucocorticoid was adjusted in one pregnancy.The serum level of 17-alpha hydroxyprogesterone (17-OHP) were elevated after pregnancy [ (70 ± 38 ) versus (24 ±23) nmol/L,P ＜ 0.05].The fertility and offspring rate of 8 patients was 8/12,the fertility and offspring rate of patients who started treatment at preadolescence was significantly increased (4/5 versus 4/7).Four patients were accepted genital reconstructive surgery ( clitorectomy,clitoroplasty,vulvoplasty) before pregnancy.The incidence of GDM was 1/8.All patients selected caesarean at from 37 +6 gestation weeks to 39+6 gestation weeks.The average newborn birth weight was (3210 ± 447 ) g,and height was (48 ±2) cm of 8 neonates,none of them was CAH.Conclusions Medical and surgical therapy provides satisfactory fertility and pregnancy outcomes for women with 21-OHD.It is safe to pregnant women with 21-OHD and their fetus in continual lower glucocorticoid treatment.The dosage of glucocorticoid should be carefully adjusted during the pregnancy individually according to serum level of 17-OHP.