OBJECTIVETo preliminarily study the effective dosage range and mechanism of the abirritation of volatile oil of Evodia Fructus on the stomach cold syndrome model in mice, and discuss the correlation between its accompanying toxicity and oxidative damage mechanism, in order to provide the experimental basis for explaining the efficacy-syndrome-toxicity correlation.

METHODThe stomach cold-syndrome model in mice was induced by the classic hot plate test by orally administrating with different doses of volatile oil of Evodia Fructus, in order to observe its abirritation and companying toxic and side effects and detect serum ALT, AST, PGE2, NO, NOS, MDA, SOD, GSH, GSH-Px, BUN, CR and hepatic ALT, AST. The companying toxic symptoms in mice were recorded in toxic reaction integral table.

RESULTVolatile oil of Evodia Fructus had an obvious analgesic effect at 30 min after the oral administration and reached the peak effect at 60 min, with certain "dose-effect" and "time-effect" relations, rises in serum and hepatic ALT and AST levels, serum PGE2, MDA, NO and NOS and hepatic indexes, decreases in SOD, GSH and GSH-Px and no notable change in BUN, CR levels and kidney weight/body ratio. Conclusion: The abirritation mechanism of volatile oil of Evodia Fructus was related to the inhibition of pain transmitter release, peroxidative damage and NO damage, which is accompanied by certain hepatotoxicity, mainly mainly oxidative damage, with a concurrent "dose-time-toxicity" relationship.

Animals ; Drugs, Chinese Herbal ; administration & dosage ; toxicity ; Evodia ; chemistry ; toxicity ; Female ; Fruit ; chemistry ; toxicity ; Humans ; Liver ; drug effects ; metabolism ; Mice ; Oils, Volatile ; administration & dosage ; toxicity ; Oxidative Stress ; drug effects ; Stomach ; drug effects ; metabolism ; Stomach Diseases ; drug therapy ; metabolism

The range of effective dose and mechanism of abirritation about water extraction components of Evodiae Fructus on the stomach cold syndrome model in mice were preliminary studied. The method of stomach cold-syndrome model in mice was built, which were administrated with different doses water extraction components of Evodiae Fructus, observing abirritation and toxicity by the classical hot plate method, detecting the level of ALT, AST, PGE2, NO, NOS, MDA, SOD, GSH, GSH-Px, BUN, CR in serum and ALT, AST in hepatic tissue, and recording toxicity symptoms in mice according to the list of relevant toxicity reaction. The water extraction component of Evodiae Fructus has obvious analgesic action after administration 30 min, arriving peak effect after administration 60 min, showing certain "dose-time-toxicity" relationship. ALT and AST levels in mice serum and liver tissue enhanced; PGE2, MDA, NO, NOS enhanced in mice serum; SOD, GSH, GSH-Px reduced; the BUN, CR levels was no significant alteration; liver weight/ body weight enhanced; kidney weight/body weight was no significant alteration. The a irritation mechanism of volatile oil of Evodiae Fructus was connected with suppressing pain transmitters release, per oxidative damage mechanism and NO damage, which also induced hepatotoxicity and the mechanism of hepatotoxicity is main lyoxidative damage, showing certain "dose-time-toxicity" relationship in accordance to hepato-toxicity injury.
Analgesics ; pharmacology ; Animals ; Body Weight ; drug effects ; Chemical and Drug Induced Liver Injury ; etiology ; Disease Models, Animal ; Dose-Response Relationship, Drug ; Evodia ; toxicity ; Female ; Medicine, Chinese Traditional ; Mice ; Plant Extracts ; pharmacology ; toxicity

Adult ; Humans ; Male ; Neck Injuries ; complications ; Pharynx ; injuries ; Trachea ; injuries

Objective To investigate the feasibility and safety of reoperation of laparoscopic common bile duct exploration in the management of choledocholithiasis in patients with biliary surgical history. Methods Thirty-one patients with choledocholithiasis and biliary surgical history were performed by reoperation of laparoscopic common bile duct exploration between January 2012 and January 2014 in our hospital.The adhesion was disconnected under the laparoscopy, and then the common bile duct was opened to introduce an endoscope for stone removal.A T-tube was placed for drainage. Results The operations were successfully completed in all the 31 cases, without conversion to open surgery.The vital signs of those patients were smooth during the operation.The operation time was 65-125 min, with a mean of (118 ±21) min.The volume of blood loss was 10-75 ml during operations, with a mean of (39 ±19) ml.The patients could take food normally 24-48 h after operation, with a mean of (27 ±13) h.The drainage tubes were pulled out 48 -72 hours after operation.No severe complications, such as residual stones, bleeding, gastrointestinal leakage, or pancreatitis happened during hospitalization, except for 1 case of biliary leakage and 1 case of incision infection.The patients stayed in hospital for 6-9 days after operation, with a mean of (7.0 ±1.5) days.No biliary stricture or recurrence was found during a 3-24 months of follow-up (mean, 15.6 months) in 31 cases. Conclusion Reoperation of laparoscopic common bile duct exploration by experienced laparoscopic specialists for choledocholithiasis in patients with biliary surgical history is relatively safe and effective.

Objective To evaluate the efficacy and safety of topotecan(TPT) in the treatment of advanced epithelial ovarian carcinoma. Methods 84 patients with advanced epithelial ovarian carcinoma received TPT(1.25mg/m~2) as a 30-minute infusion daily for 1-5 days,21 days for a cycle.The efficacy was evaluated after 2 cycles of chemotherapy.Response was confirmed 4 weeks later.Results In 84 selected patients,72 were assessable for response and 84 for toxicity.The overall response was 22.2%,including 2 CR and 14 PR.The response rate for untreated and recurrent advanced epithelial ovarian carcinoma was 25.0% and 20.8%,respectively.The main side effects were neutropenia and leukopenia.WHO grade III-IV of them were 26.1% and 26.1%,respectively.The non-hemotological toxicity was mild.Conclusion TPT is effective and well-tolerated in the treatment of advanced epithelial ovarian carcinoma,especially in recurrent patients.

Inflammation plays a key role in the formation of intracranial aneurysm. At present, the pathophysiological processes of intracranial aneurysms are mainly caused by both hemodynamic abnormalities and inflammation. Studies have shown that the inflammatory cels in the intracranial aneurysm wal are mainly mononuclear macrophages, and can secrete various effector molecules, weakening and destroying the structures of the vessel wal . Therefore, the research of the roles of differences played in different subtypes of macrophages and their effector molecules in the pathophysiological processes of intracranial aneurysms wil provide clues for exploring the pathogenesis of intracranial aneurysms and effective targeted therapy.

Objective To investigate the clinicopathological features ,diagnosis and differential diagnosis of primary leiomyo‐sarcoma of the thyroid gland .Methods The pathological characteristics and immunohistochemical features in a case of primary leio‐myosarcoma of the thyroid gland were analyzed and the relevant literatures were reviewed .Results Grossly ,the mass measured 5 .5 cm × 4 .0 cm × 3 .5 cm ,gray and yellow in cut surface and partial hard quality .Histologically ,the tumor was composed of spin‐dle cells ,arranging in bundles with obvious dysplasia ,nuclear mitosis was easily found .The tumor infiltrated thyroid follicles and in‐vaded surrounding tissues .The immunohistochemical study showed that Vimentin ,SMA ,Caldesmon and Actin were positive ,and CK ,CK8 ,EMA ,TTF‐1 ,P53 and LCA were negative .Conclusion Primary leiomyosarcoma of thyroid gland is extremely rare ,its diagnosis should be combined with clinical and imageologic data ,histological characteristics and immunohistochemistry .

Age-related macular degeneration (AMD) is the leading cause of visual impairment among older population worldwide,and wet AMD is more threatened to vision because of the choroidal neovascularization.Some physical therapies are thought to destroy the lesions but can not improve the visual acuity.Therefore,anti-VEGF drug therapy is becoming a new approach to the management of wet AMD.Vascular endothelial growth factor(VEGF) is thought to play an important role in the complicated pathogenesis,which can be addressed by disease reduction strategies.Among the anti-VEGF drug therapies,anti-VEGF monoclonal antibodies are proved to maintain and improve visual acuity.Other therapies have been or now being developed for the treatment of neovascular AMD with the goal of inhibiting VEGF.These inhibitors include VEGF receptor decoy aflibercept,small interfering RNA-based therapies (bevasiranib) and tyrosine kinase inhibitors (vatalanib),which could offer the potential for further advances.To completely realize the active mechanism of VEGF in wet AMD is helpful for the rational use of anti-VEGF drugs.

Adult ; Bronchoalveolar Lavage ; methods ; Humans ; Male ; Middle Aged ; Pneumoconiosis ; therapy ; Treatment Outcome

Background Postoperative endophthalmitis following intraocular lens(IOL)implantation is still one of the most feared complications of cataract surgery.Bacterial adhesion to IOLs during their insertion is a prominent etiological factor.The adhesion characteristics of bacteria to IOL are very vital for the prevention of endophthalmitis after cataract surgery.Objective The present study was to observe the in vitro adherence ability of Staphylococcus epidermidis to different intraocular lenses(IOLs)and compare the results in bacterial counting between scanning electron microscopy(SEM)photographs and quantitative cultures. Methods Five types of IOLs,including hydrophobic acrylic IOL,polymethylmethaerylate(PMMA)IOL,heparin-surface-modified(HSM) PMMA IOL,silicone(SI)IOL and hydrophilic acrylic IOL,were put into S.epidermidis(ATCC 12228)suspension for 1 hour.The bacterial adhesion numbers on the IOL surfaces were counted by quantitative cultures and scanning electron microscopy(SEM) photographs. Results Quantitative culture counting of viable adherent bacteria released by sonication showed that hydrophobic acrylic IOL and PMMA IOL were more likely for bacteria to attach.The number of bacteria on the five types of IOL surfaces showed significant differences(F=100.084,P=0.000).No significant differences were found in the number of bacteria between hydrophilic acrylic IOL and HSM-PMMA IOL (t=2.285,P=0.052)with the quantitative culture method.Direct counting of adherent bacteria in SEM photographs revealed that there were significant differences in bacterial adhesion numbers among difierent IOL material groups,with the numbers from high to low as follows:Hydrophobic IOL＞PMMA IOL＞SI IOL＞Hydrophilic IOL＞HSM-PMMA IOL(F=118.065,P=0.000).The counting method by SEM method was superior to that by quantitative cultures (t=5.019,P=0.000). Conclusion The bacterial adhesion ability varies upon the difference of IOL materials.Less bacterial adhesion is found on hydrophilic acrylic IOL and HSM-PMMA IOL,implying that the use of IOLs made from these two materials during surgery could diminish the incidence of postoperative endophthalmitis and intraocular inflammation associated with IOLs implantation.