OBJECTIVETo explore the effectiveness of absorbable hemostatic fluid gelatin in preventing postoperative cerebrospinal fluid leakage.

METHODSThe clinical data of 17 patients with dura mater tear were retrospectively analyzed from March to September in 2003. There were 16 males and 1 female, aged from 16 to 67 years old with an average of (39.6 ± 15.4) years. The injury site was at cervical vertebrae in 1 case, thoracic vertebrae in 9 cases, thoracolumbar junction in 4 cases, lumbar vertebrae in 3 cases. There were burst fracture in 4 cases and fracture-dislocation in 13 cases. According to ASIA grade, 12 cases were grade A, 2 cases were grade B, 2 cases were grade D, 1 case were grade E. Two cases caused by traffic accident, 10 by high falling, 4 by heavy parts crash, 1 by stairs fell during the earthquake. Absorbable hemostatic fluid gelatins were used to plug the dura mater tear,in order to prevent postoperative cerebrospinal fluid leakage. Postoperative drainage were recorded every day.

RESULTSOf 17 patients, 15 cases did not develop with cerebrospinal fluid leakage. Two cases develop with cerebrospinal fluid leakage after operation and their drainage were removed at 6 to 7 days after operation. In all cases, no complications related with cerebrospinal fluid leakage occurred, such as headache, dizzy, fever,neck resistance, rash, incision disunion, incision infection, hematoma, neurologic symptoms aggravation. No abnormal phenomena was found on incision surrounding at follow-up of 9 months.

CONCLUSIONUsing absorbable hemostatic fluid gelatin to plug the dura mater tear during operation is an effective method in preventing postoperative cerebrospinal fluid leakage.

Adolescent ; Adult ; Aged ; Cerebrospinal Fluid Leak ; prevention & control ; Female ; Gelatin ; administration & dosage ; Hemostatics ; administration & dosage ; Humans ; Male ; Middle Aged ; Postoperative Complications ; prevention & control

OBJECTIVETo explore the detoxication and tissue generation effect of Astragalus (As) in wound healing and its relation with inflammatory reaction, through observing the effect of Astragalus polysaccharides (AP) on neutrophil-endothelial cell adhesion and expression of related adhesive molecules.

METHODSHuman polymorphonuclear leucocyte (PMN) or human umbilical vein endothelial cell (HUVEC) was treated separately with AP, AP plus interleukin 1 (IL-1) and tumor necrosis factor (TNF) to study the effect of AP on PMN adhesion with HUVEC by rose bengal staining, and that on expression of superficial adhesive factor by means of Cell-ELISA and APAAP method.

RESULTSWhen AP acted on HUVEC, it could significantly promote the adhesion of HUVEC with PMN, while when AP acted on PMN, the adhesion would not increase. When HUVEC was treated by AP plus IL-1, the IL-1 induced PMN adhesion with HUVEC could be strengthened, and the expression of HUVEC superficial adhesive factor ICAM-1 induced by IL-1 and TNF was strengthened also, but when PMN treated with AP, it showed no effect on the expression of adhesive factor CD18.

CONCLUSIONAP promotes the adhesion between neutrophil and endothelial cell by way of promoting the expression of superficial I-CAM-1 on surface of endothelial cells, so as to improve the inflammatory reaction in the wound healing course, it possibly is one of the biological bases of the detoxication and tissue generation effects of AP.

Astragalus membranaceus ; chemistry ; Cell Adhesion ; drug effects ; Endothelial Cells ; cytology ; metabolism ; Humans ; Intercellular Adhesion Molecule-1 ; biosynthesis ; Interleukin-1 ; biosynthesis ; Neutrophils ; cytology ; metabolism ; Polysaccharides ; pharmacology ; Umbilical Veins ; cytology ; Wound Healing ; drug effects

Objective To compare clinical outcome of microvascular decompression (MVD) and percutaneous balloon compression (PBC) by using a prospective cohort study in order to provide a reliable evidence for the clinical decision-making. Methods Patients with trigeminal neuralgia hospitalized at Hangzhou First People′s Hospital in 2010 were chosen as database for cohort study. The patients were divided into MVD group (30 cases) and PBC group (30 cases). The clinical efficacy was followed by independent observers for 36 months after surgery. Chi-square test for hierarchical data, t test for quantitative data, and Kaplan-Meier plot for clinical outcomes were applied in the research. The endpoint was follow-up accomplishment or severe occurrence. Results Sixty patients were included in the research till the endpoint. The general records before surgery were almost the same with the literature records. By comparing painless period, mild and severe relapse, MVD group was superior to PBC group (P < 0.05). As for the painless survival period, MVD group was 96.7% of pain free after 1 year, 93.3% after 3 years, while PBC group was 90.0% after 1 year and 83.3% after 3 years. Regarding 3 years of follow-up, the relapse seemed occurred after 1 year in both groups. Conclusions As a curative and nondestructive procedure , MVD is more effective and has longer lasting pain free period , which should be considered as the first choice of treatment for trigeminal neuralgia in healthy people.

AIM: To assess the relative agreement of GAT and NCT in IOP measurement by comparing the differences between Goldmann applanation tonometer (GAT) and non-contact tonometer (NCT) in intraocular pressure (IOP) detection.METHODS: IOP of 529 eyes of 265 volunteers were measured with both NCT and GAT, respectively.RESULTS: The measurement results of NCT were lower than that of GAT, there was significant difference between the IOP measured with NCT and GAT (19.13 vs23.43, t=22.644, P＜0.05). With the increasing of IOP values, the difference magnitude was greater, especially in IOP group that was more than 30mmHg, but the correlation coefficient became lower.CONCLUSION: The measurement results with NCT are lower than that of GAT. When the IOP with the NCT is in borderline value, it need be corrected with GAT, in order to discover the pathologically elevated IOP and avoid the misdiagnosis and mistreatment of glaucoma.

Objective - To investigate the effect of lung flora dysbiosis on the process of pulmonary fibrosis and lung epithelial （ ） Methods - mesenchymal transition EMT in mice with silicosis. Male C57BL/6 mice of specific pathogen free grade were ， ， ， （ ） randomly divided into the blank control group silicosis model group solvent control group vancomycin VM + ampicillin （ ） ， （ ） （ ） ， AMP group metronidazole MNZ + neomycin NEO group and mixed treatment group 12 mice in each group. Except for ， ， the blank control group which was given 20.0 µL of 0.9% NaCl solution the other five groups of mice were dosed with 20.0 µL of silica dust suspension at a mass concentration of 250.0 g/L using a single tracheal drip to establish the silicosis mouse model. ： The intranasal drip method was used to treat silicosis mice in each group as following mice in the solvent control group were - ； ； given double distilled water mice in the VM+AMP group were given VM at a mass concentration of 0.5 g/L and AMP at 1.0 g/L ； mice in the MNZ+NEO group were given MNZ at a mass concentration of 1.0 g/L and NEO at 1.0 g/L mice in the mixed ， treatment group were given the same doses of the four antibiotics mentioned above all in a drip volume of 50.0 µL. Silicosis ， ， mice were treated seven days and half an hour before silica dusting and 7 14 and 21 days after silica dusting. Mouse lungtissue was collected aseptically 28 days after silica dusting. Hematoxylin eosin and Masson trichrome staining methods were - used to observe the pathological changes. Western blotting was used to detect the relative protein expression of α smooth muscle （ - ）， - （ - ） （ ） actin α SMA E cadherin E CAD and vimentin VIM . Immunohistochemistry was used to detect the relative expression of - - E CAD and VIM. Real time fluorescence quantitative polymerase chain reaction was used to detect the expression levels of （Col1a2） Results collagen type Ⅰ alpha 2 mRNA in lung tissues. The histopathological results showed that the alveoli of the ， blank control group were thin and structurally intact with few surrounding infiltrating inflammatory cells and no abnormal ， distribution of collagen fibers. The alveoli of the silicosis model group were structurally disorganized with a large number of ， ， infiltrating inflammatory cells thickened alveolar walls and cellular fibrous nodules with abundant blue collagen deposit. In the ， ， VM+AMP group MNZ+NEO group and the mixed treatment group the inflammation and fibrosis were reduced with diferent degrees in the lung tissues compared to the silicosis model group and the solvent control group. The relative expression levels of - ， Col1a2 α SMA VIM protein and mRNA in lung tissues of mice in the silicosis model group were higher than those in the blank （ P ）， -CAD control group all <0.05 and the relative expression levels of E protein were lower than those in the blank control （P ） - ， Col1a2 group <0.05 . The relative expression levels of α SMA VIM protein and mRNA in lung tissues of mice in the MNZ+ （ P ）， -CAD NEO group and the mixed treatment group were lower all <0.05 and the relative expression levels of E protein were （P ）， Conclusion higher <0.05 when compared with the silicosis model group and the solvent control group. Pulmonary fibrosis ， - was reduced in silicosis mice with interventions in lung flora where anaerobic and gram negative bacteria affected pulmonary fibrosis and dysbiosis of the lung flora affected pulmonary EMT.

OBJECTIVETo study the effects of excessive fluoride on type I collagen in rat developmental dentine.

METHODSEighty SD rats, 5 days old, were divided into experimental and control groups, 40 in each group. The experimental group received subcutaneous injection of 0.2% NaF every 4 days (the dose was 2 mg NaF per kg body wt). The same volume of 0.9% NaCl was used in the control. Twenty rats in each group were killed 4 days after the second and the seventh injection respectively. The expression of type I collagen was assayed with immunohistochemical technique.

RESULTS4 out of 20 rats after two injections showed abnormal distribution of type I collagen (dense stain of collagen in the odontoblast, aggregation of collagen in the dentine and disordered arrangement of collagen in the predentine; All 20 rats after seven injections showed abnormal distribution of type I collagen.

CONCLUSIONExcessive fluoride may affect the metabolism of type I collagen in rat developmental dentine.

Animals ; Animals, Newborn ; Collagen Type I ; analysis ; Dentin ; chemistry ; drug effects ; growth & development ; Fluorides ; toxicity ; Immunohistochemistry ; Rats ; Rats, Sprague-Dawley

OBJECTIVETo analyze the constituent proteins in donkey hide, the key ingredient for Ejiao, an important traditional Chinese medicine for the blood-related conditions, in hope to eventually decipher the biochemical mechanism behind Ejiao's prominent medicinal efficacy.

METHODTwo methods were employed to extract proteins in donkey skin. One used TriPure isolation reagent to extract the total proteins in donkey skin. Another used 1% sodium dodecyl sulfate (SDS) to heat the sample at 100 degrees C overnight. And then sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) and capillary HPLC were used to analyze the component of proteins.

RESULTThere are not only collagen alpha1 (I) and collagen alpha2 (I), but also serum albumin in donkey skin. The content is over 25% in total proteins with the method of TriPure isolation reagent. The content of donkey serum albumin is up to 20% with the method of 1% SDS heating. And two bands, molecular weight are nearly 200 kDa,were found on 7.5% SDS-PAGE. Extracted these proteins to analyze with capillary HPLC, they were found to be the complex products of collagen and serum albumin of donkey.

CONCLUSIONDonkey serum albumin is a main protein component in the hide, which is a clue to expose is the effect of Ejiao on blood.

Animals ; Chromatography, High Pressure Liquid ; Collagen Type I ; analysis ; chemistry ; metabolism ; Collagen Type II ; analysis ; chemistry ; metabolism ; Drug Interactions ; Electrophoresis, Polyacrylamide Gel ; Equidae ; Molecular Weight ; Protein Binding ; Serum Albumin ; analysis ; chemistry ; metabolism ; Skin ; chemistry

Fifteen cassaen-type diterpenes were isolated from the 95% ethanolic extract of the seeds of C. minax through various chromatographic techniques. Their structures were identified on the basis of spectroscopic data as pulcherralpin (1), caesalpinin ML (2), chamaetexane C (3), chamaetexane D (4), 6β, 18-diacetoxycassan-13, 15-diene (5), neocaesalpin K (6), neocaesalpin MP (7), neocaesalpin M (8), neocaesalpin Q (9), neocaesalpin P (10), neocaesalpin R (11), caesaldekarin D (12), caesaldekarin A (13), caesaldekarin b (14), 3β,6α-diacetoxyvouacapane (15). Among them, compounds 14, 9-11 were isolated from this plant for the first time.
Caesalpinia ; chemistry ; Diterpenes ; chemistry ; isolation & purification ; Drugs, Chinese Herbal ; chemistry ; isolation & purification ; Magnetic Resonance Spectroscopy ; Molecular Structure ; Seeds ; chemistry ; Spectrometry, Mass, Electrospray Ionization

OBJECTIVETo compare robot-assisted laparoscopic radical prostatectomy (RALRP) with laparoscopic radical prostatectomy (LRP) in the treatment of prostate cancer and investigate the clinical application value of RLRP.

METHODSWe retrospectively analyzed 70 cases of prostate cancer treated by RALRP and another 32 cases treated by LRP. We compared the operation time, intraoperative blood loss and transfusion, catheter-indwelling time, postoperative hospital stay, incisal margin positive rate, biochemical recurrence, and normal postoperative urinary continence and penile erectile function between the two groups of patients.

RESULTSAll the operations were successfully accomplished. RALRP exhibited a significant superiority over LRP in intraoperative blood loss and transfusion, catheter-indwelling time, and postoperative hospital stay, urinary continence and erectile function (P < 0.05).

CONCLUSIONRobot-assisted laparoscopic radical prostatectomy, with its advantages of few postoperative complications and well-preserved urinary continence and penile erectile function, is an effective, safe and minimally invasive surgical option for prostate cancer.

Blood Loss, Surgical ; Humans ; Laparoscopy ; Length of Stay ; Male ; Operative Time ; Penile Erection ; Postoperative Complications ; Postoperative Period ; Prostatectomy ; methods ; Prostatic Neoplasms ; surgery ; Retrospective Studies ; Robotic Surgical Procedures ; methods

Objective To investigate the three-dimensional structure of normal male canine prostat- ic duct and acinus system,and to study the mechanism of intraprostatic urinary reflux(IPUR)resulting from high pressure of the posterior urethra by experiment.Methods Using scanning electron microscopy (SEM)and corrosion casting methods,high pressure of the prostatic urethra was produced based upon IPUR in normal male canines.Acrylonitrile-butadiene-styrene(ABS)casting solution was injected into 8 Beagle canines'normal prostates to induce intraprostatie resin solution reflux.Results Six casting molds of nor- real canine prostate specimens were obtained,and the casting failed in 2.By corrosion and casting treatment, the prostate appeared to consist of several glandular lobes.The columnar apophyses of glandular surface were observed.The most glandular ducts pointed outward from urethral peristome.Each glandular duct system was made up of many bifurcated branches from the bough as a duct tree.More than 90% of the bifurcations were Y-shaped,and 6 bifurcated branches were rarely seen.The tip of the duct was vesicular.The diameter and length of the bough were(0.37?0.14)mm and(1.14?0.04)mm,respectively.The intersectional angle of urethra and peripheral glandular duct was the biggest.Peripheral glandular duct was perpendicular or con- verse to urinary flow.Peripheral glandular aeinus appeared elliptic and velvet.The mesh-like and crater-like depressions were shown on the surface of central glandular aeinus.Ejaculatory ducts independently and branchlessly entered the urethra.Conclusions The resin corrosion casting methods combined with SEM can clearly show the three-dimensional structure of normal male canine prostatic duct and acinus system. IPUR may easily occur in the peripheral glands from the morphological view.It is suggested that prostatitis occurs more commonly in peripheral glands,confirming a fact that high pressure of the posterior urethra can induce IPUR.