OBJECTIVE:To establish a HPLC method for determination of paeonol and imperatorin in Cangzhi nose spray. METHODS:HPLC system consisted of ODS C 18 column(150mm?4.6mm,5?m)methanol-water(6∶4)mixture as mobile phase,with detection wavelength at310nm,flow rate1.0ml/min.RESULTS:The average recoveries of paeonol and imperatorin were99.4%(RSD=0.69%)and99.9%(RSD=2.66%)respectively.CONCLUSION:The method is sensitive,rapid and ac?curate.

Objectives: To investigate the effect of atorvastatin on the adverse events after middle cerebral artery stenting. Methods: Twenty-four patients who successfully completed middle cerebral artery stenting (restenosis rate ≥ 70%) were randomly assigned to 2 groups; treatment group (taking atorvastatin 40 mg + plavix 75mg + aspirin enteric-coated tablet 300 mg, once a day) and control group (taking plavix 75mg + aspirin enteric-coated tablet 100 mg, once a day) (n = 12 in each group). The patients were followed up at 1, 3, 6, and 12 months after procedure. New adverse events (transient ischemic attack, cerebral infarction, restenosis, and reintervention) were recorded. Results: Compared with the control group, the blood lipid level and C-reactive protein level were decreased significantly at all time points in the treatment group (P < 0.05 or P < 0.01), except the LDL-C level at 1 month. The total incidence of adverse events in the treatment group was lower than that in the control group. There was statistically significant difference (P =0.00017); however, the C-reactive protein level was higher than that before procedure, and it was lower than that before procedure until 12 months. The blood lipid level after procedure was significantly lower than that before procedure in the treatment group. Conclusion: Atorvastatin treatment after middle cerebral artery stenting may effectively prevent the occurrence of adverse events after stenting.

Combined Modality Therapy ; Diagnosis, Differential ; Drugs, Chinese Herbal ; therapeutic use ; Genetic Therapy ; Hepatitis B ; complications ; drug therapy ; Humans ; Liver Cirrhosis ; drug therapy ; etiology ; Medicine, Chinese Traditional ; Phytotherapy

Objective To establish a pregnant mouse model infected with Porphyromonas gingivalis (P.g), and investigate the relationship of P.g infection to prematurity and associated birth abnormalities. Methods Fifty two female mice were randomly divided into P.g infection group (n=26) and control group (n=26). Mice in P.g infection group were anesthetized, the pulp cavity of the first molar was opened and directly injected with W83 strain P.g, and the tooth was then filled. Six weeks after infection, the mice were mated with males and the formation of vagina plug was recorded as 0d. The P.g extracted from the granulation tissue in tooth root was cultivated. The pregnant days and the connatal body weight of infant mouse were recorded, the serum and placental tissue were collected to assess the systemic and local conditions during pregnancy. Results After periodontal P.g infection, the TNF-α, IL-17, IL-6 and IL-1 levels in peripheral blood sera increased significantly. The average gestation was shorter in P.g infection group (18.25d) than in control group (20.45d, P<0.01), and the connatal body weight of infant mouse was also less in the former than in the latter (P<0.01). Immunohistochemistry and PCR revealed the existence of P.g in placenta tissue. P.g infection caused premature rupture of membranes, placental abruption, degeneration and necrosis of trophoblastic and endothelial cells; significantly increased the number of neutrophils and macrophages in placenta tissues, and increased the expression of local TNF-α and COX-2 inflammatory factors at the same time. In P.g infection group, the expressions of CD-31 in endothelial cells of placenta tissues and the apoptotic factor caspase-3 decreased, and the DNA oxidative damage index 8-OHdG increased. Conclusions P.g infection in female mice may cause premature birth and lower connatal body weight of infant mouse, and increase the expression of serous and local inflammatory factors in the placenta. It is suggested that timely removal of periodontitis or gingivitis can prevent some of reproductive abnormalities.

OBJECTIVETo study the applied value of double joystick technique in reduction-internal fixation for femoral shaft fracture in adults.

METHODSThirty-four patients (24 males and 10 females) with femoral shaft fractures were treated with reduction assisted by double joystick technique and internal fixation with interlocking intramedullary nail from September 2010 to June 2013. The average age of the patients was 41 years old, ranged from 17 to 65 years old. The duration of the disease course ranged from 3 to 7 days, with a mean of 5 days. The fractures belonged to AO types 32A (5 cases), 32B (20 cases) and 32C (9 cases) and located in left femur for 18 patients and right femur for 16 patients. The patients were followed up, and fracture healing and complications were observed. The curative effect were evaluated according to Thorsen femur fracture evaluation standard.

RESULTSThe operative time ranged from 40 to 110 min (mean 75 min) and intraoperative blood loss ranged from 200 to 300 ml (mean 250 ml). All the patients obtained a good fracture reduction and were followed up for 12 to 24 months (mean 18 months) after the surgery. All the fractures united between 4 and 8 months with a mean of 5 months. No complications such as breakage of nail, infection, osteofascial compartment syndrome, refracture and fracture malunion were found. According to Thorsen femur fracture evaluation standard, 30 patients obtained an excellent result, 3 good and 1 fair.

CONCLUSIONIn surgery of reduction-internal fixation for femoral shaft fracture in adults, the use of double joystick technique obtains good reduction result, short operative time, less injury, high healing rate of bone fractures, less complications and good limbs function, so it is worthy of popularizing in clinic.

Adolescent ; Adult ; Aged ; Bone Nails ; Female ; Femoral Fractures ; physiopathology ; surgery ; Fracture Fixation, Intramedullary ; instrumentation ; methods ; Fracture Healing ; Humans ; Male ; Middle Aged ; Young Adult

Diabetic macular edema(DME)and age-related macular degeneration(ARMD)are the leading causes of visual impairment and blindness worldwide, and their common pathological features are increased vascular permeability and abnormal neovascularization, in which cytokines such as vascular endothelial growth factor(VEGF)and angiopoietin-2(Ang-2)play an important role. Intravitreal injection of anti-VEGF agents significantly changed the clinical management of DME and ARMD, but limitations such as the non-responsive cases, the treatment burden and risks caused by frequent injections need to be overcome. Faricimab, a novel bispecific monoclonal antibody that simultaneously targets VEGF-A and Ang-2, can effectively reduce vascular permeability, decrease the number of neovascularization and alleviate retinal edema. Registered clinical studies have shown that Faricimab is effective in improving vision and reducing retinal edema, which is non-inferior to Aflibercept and Ranibizumab, maintains a long dosing interval, and has a high safety profile. This article reviews the latest advances in the treatment of DME and ARMD with Faricimab.

Blood Gas Analysis ; Female ; Humans ; Infant, Newborn ; Infant, Newborn, Diseases ; therapy ; Intensive Care Units, Neonatal ; Male ; Respiration, Artificial

We analyzed the special characteristics of postgraduate education for anesthesiology majors based on the current situation of medical postgraduate education.Next,we introduced the ‘ sandwich' teaching method and discussed how it can promote students' subjective initiative by transforming various learning patterns.Finally,the effectiveness of study was elevated by ‘sandwich' teaching method.

Objective To study the feasibility of the treatment of tubule pregnancy by interventional technique. Methods By using Seldinger′s method, 40 cases of tubule pregnancy received superselective angiography of uterine artery,followed by perfusion of methotrexate (MTX) through the catheter and embolization of uterine artery with gelatin sponge. The concentration of serum ? HCG, the change of pelvic cavity, and the open condition of oviduct were regularly monitored postoperatively. Results Angiographic findings of tubule pregnancy were classified into 3 types. Type Ⅰ, no abnormal vascular appearance were found in 3 cases (7.5%). Type Ⅱ, patchy vascular staining of villi in parauterine area was observed in 4 cases (10.0%). Type Ⅲ, a round vascular staining of villi surrounded by small blood vessels in parauterine area occurred in 33 cases (82.5%). The cure rate in total 40 cases achieved 97.5% (39/40). After treatment, the mean time that the serum ? HCG concentration returned to normal was (7.66?2.01) d and the mean time that the menstruation returned to normal was (29.78?7.14) d. In 21 cases who hoped their fertility remaining intact, the oviduct were verified open by hysterosalpingography (HSG) in 20 cases, the open rate was 95.24%. Conclusion The treatment of tubule pregnancy by interventional technique was proved no harmful effect to reproductive organs and would expect to preserve fertility. This method could resolve the difficult problem of celiac hemorrhage which making conservative treatment impossible and internal hemorrhage happened in the course of traditional conservative therapy leading to treatment failure finally. This method might be a new conception and a choice to treat tubal pregnancy through artery.

Objective To investigate whether diazoxide preconditioning can exert protective effect on myocardium against ischemia-reperfusion injury in immature rabbits and the possible mechanism. Methods Twenty-one healthy 3-4 week old white rabbits of either sex were randomly divided into 3 groups : group Ⅰ control ( n = 8) ; group Ⅱ diazoxide preconditioning ( n = 8) and group Ⅲ diazoxide + 5-HD preconditioning ( n = 5) . The animals were anesthetized with intraperitoneal pentobarbital 50 mg?kg-1 and heparized (150 IU?kg-1). The hearts were excised and connected to Langendorff apparatus and passively perfused with normothermic (37℃), oxygenated (95% O2 , 5% CO2) Krebs-Henseleit buffer (KHB) at a constant perfusion pressure of 70cmH2O. A latex balloon was inserted via left atrium into left ventricle and filled with water. The left ventricular end-diastolic pressure (LVEDP) was maintained at 10 mm Hg. In group I cardiac arrest was induced with St Thomas Ⅱ solution after the heart was perfused with KHB for 30 min. In group 11 after being perfused with KHB for 15 min, the hearts were perfused with diazoxide 100?mol?L-1 for 5 min followed by 10 min wash-out with KHB , then cardiac arrest was induced as in group Ⅰ . In group Ⅲ after being perfused with KHB for 15 min, the hearts were perfused with diazoxide 100?mol?L-1 and 5-HD 100?mol?L-1 for 5 min, followed by 10 min wash-out with KHB, then the cardiac arrest was induced as in group Ⅰ and Ⅱ . All hearts were subjected to 30 min ischemia followed by 45 min reperfusion after cardiac arrest. Coronary flow (CF), HR, left ventricular developed pressure (LVDP) and dp / dt max were measured after the hearts were perfused with KHB for 15 min (baseline) and at 5, 10, 15, 30, 45 min after reperfusion was resumed. Coronary effluent was collected at 5 min after reperfusion was resumed for determination of myocardial enzymes, CK, LDH and AST. At the end of experiment myocardial specimen was obtained for determination of ATP content and ultrastructure examination. Results There was no significant difference in the baseline hemodynamic parameters among the three groups. The rates of recovery of LVDP and ? dp / dt max after reperfusion were significantly higher in group Ⅱ than those in group I and Ⅲ ( P 0.05 ) , Conclusion Diazoxide can protect myocardium from ischemia-reperfusion injury by opening the mitochondrial KATP channel in immature rabbits.