7 flavonoids are isolated from the leaves of Hovenia acerba Lindl. On the basis of chemical and spectralmethods (IR,1H,13 CNMR),they are ivdentified as kaempferol(Ⅱ),quercetin(Ⅱ),isoquercetin(Ⅳ),kaempferol-3-Oa-L-rhamnopyranosyl(1)-?-D-galactopyranoside(Ⅶ),kaempferol-3-O-rutinoside(Ⅶ),quercetin-3-O-?-L-rhamnopyranosyl(1→6)-?-D-galactopyanoside(Ⅹ Ⅸ),and rutin(Ⅸ),All of them are isolated for the first time from genus Hovenia.

Objective To elucidate the constituents from the root of Euphorbia pekinensis and to look for new products with antitumor activity.Methods The chromatography on silica gel was used and the structures were identified by IR,NMR,and MS spectral analyses and their physicochemical properties were comparied.Results Eight compounds were isolated and identified as octadecanol(Ⅰ),octadecanyl-3-methoxy-4-hydroxybenzeneacrylate(Ⅱ),?-sitosterol(Ⅲ),triacontanoic acid(Ⅳ),2,2′-dimethoxy-3,3′-dihydroxy-5,5′-oxo-6,6′-biphenylformic anhydride(Ⅴ),euphol(Ⅵ),tirucallol(Ⅶ),and euphpekinensin(Ⅷ).Conclusion The compounds Ⅰ,Ⅳ,Ⅵ,and Ⅶ are isolated from the roots of E.pekinensis for the first time.

Objective To establish the suspension cell line of Atractylodes lancea and to study the effect of two endophytic fungal elicitors on its essential oil production.Methods The essential oil was extracted by using ultrasonic wave after suspension cell was treated with endophytic fungal elicitors.Then,the determination of four compounds(atractylone,hinesol,?-eudesmol,and atractylodin) was carried out by gas chromatography.Results By testing in various conditions,the suspension cell line with a rapid growth rate was established.Its highest biomass(6.95 g/L) was obtained on day 21.?-Eudesmol was the only detection in the control suspension cell,and its highest content(17.469 ?g/g) was also reached on day 21.The effect of crude elicitors of two endophytic fungi(belong to Cunninghamella sp.and Gilmaniella sp.respectively,named AL4 and AL12) on the cell growth and the production of essentia1 oil were investigated.Overall AL4 elicitor got better effect.When suspension cell of 14-day-old cultures was exposed to AL4 elicitor(carbohydrate 20 mg/L medium) for 7 d,the biomass increased 3.31% over the control,and the four compounds(atractylone: 14.715 ?g/g,hinesol: 28.395 ?g/g,?-eudesmol: 38.794 ?g/g,and atractylodin: 8.310 ?g/g) were all detected.Among them,the content of ?-eudesmol reached 2.22 times as much as the control.Conclusion The cell growth and the accumulation of essential oil of A.lancea could also be promoted by adding crude elicitors of the endophytic fungi AL4 and AL12.

To study the chemical constituents of Bauhinia glauca subsp. pernervosa, eleven phenolic acids were isolated from a 95% ethanol extract by using a combination of various chromatographic techniques including column chromatography over silica gel, ODS, MCI, Sephadex LH-20, and semi-preparative HPLC. By spectroscopic techniques including 1H NMR, 13C NMR, 2D NMR, and HR-ESI-MS, these compounds were identified as isopropyl O-beta-(6'-O-galloyl)-glucopyranoside (1), ethyl O-beta-(6'-O-galloyl)-glucopyranoside (2), 3, 4, 5-trimethoxyphenyl-(6'-O-galloyl)-O-beta-D-glucopyranoside (3), 3, 4, 5-trimethoxyphenyl-beta-D-glucopyranoside (4), gallic acid (5), methyl gallate (6), ethyl gallate (7), protocatechuic acid (8), 3, 5-dimethoxy-4-hydroxybenzoic acid (9), erigeside C (10) and glucosyringic acid (11). Among them, compound 1 is a new polyhydroxyl compound; compounds 2, 10, and 11 were isolated from the genus Bauhinia for the first time, and the other compounds were isolated from the plant for the first time. Compounds 6 and 8 showed significant protein tyrosine phosphatase1B (PTP1B) inhibitory activity in vitro with the IC50 values of 72.3 and 54.1 micromol x L(-1), respectively.

Objective To compare of clinical and pathological features between gastric polyps and colorectal polyps.Methods The clinical characteristics and pathological features of 2 125 patients with gastric polyps and 4 924 patients with colorectal polyps admitted in Wenzhou People's Hospital from 2004 to 2013 were compared.The detection rates,the indication of endoscopy,distribution,number,size and pathological type of gastric polyps and colorectal polyps were analyzed.Results The detection rate of gastric polyps was 3.1％ (2 125/69 575) and that of colorectal polyps was 24.5％ (4 924/20 124) (χ2 =9 886.401,P ＜0.01).The detection rates of gastric polyps in age groups ＜ 20,20-39,40-59 and ≥60 were 1.8％ (23/1 302),1.8％ (399/22 600),3.4％ (1 137/33 087) and 4.5％ (566/12 586),respectively (χ2 =238.867,P ＜ 0.01);and those for colorectal polyps were 6.6％ (14/211),11.6％ (623/5 385),26.0％ (2 622/10 070) and 37.3％ (1 665/4 458),respectively (χ2 =934.724,P ＜ 0.01).The detection rates of gastric polyps in age groups 20-39,40-59 and ≥60 were lower than those in colorectal polyps(all P ＜ 0.01).The detection rate of gastric polyps in males was lower than that in females(2.3％,848/36 447 vs.3.9％,1 277/33 128,χ2 =273.807,P ＜0.01),while the detection rate of colorectal polyps in males was higher than that in females (28.8％,3 239/11 230 vs.18.9％,1 685/8 894,χ2 =262.518,P ＜ 0.01).Diarrhea and gastrointestinal bleeding in patients with colorectal polyps was more common than those in patients with gastric polyps (23.5％,1 156/4 924 vs.2.5％,54/2 125,χ2 =558.080,P＜0.01;12.1％,597/4 924 vs.2.4％,51/2 125,χ2 =168.150,P ＜0.01).Single polyps were more common in gastric polyps than colorectal polyps(80.7％,1 714/2 125 vs.67.6％,3 331/ 4 924,χ2 =186.337,P ＜0.01).Polyps with size ≥ 1.0 cm were more common in colorectal polyps than those in gastric polyps (24.3％,1 197/4 924 vs.13.6％,289/2 125,χ2 =102.333,P ＜ 0.01).The proportion of inflammatory and hyperplastic types in gastric polyps was higher than that in colorectal polyps (67.1％,1 378/2 125 vs.27.5％,1 273/4 924,χ2 =934.394,P ＜0.01;26.9％,552/2 125 vs.9.9％,459/4 924,χ2 =319.588,P ＜0.01);while the proportion of adenoma and canceration in gastric polyps was lower than that in colorectal polyps (1.7％,34/2 125 vs.62.4％,2 893/4 924,χ2 =2 135.743,P ＜0.01;0.4％,9/2 125 vs.4.8％,221/4924,χ2 =80.362,P＜0.01).Conclusions In comparison with gastric polyps,the detection rate of colorectal polyps is higher.The detection rate of gastric polyps is higher in females,w hile that of colorectal polyps is higher in males.The detection rates of gastric polyps andcolorectal polyps increase with the age.The main pathological type of gastric polyps is inflammatory,while that of colorectal polyps is adenoma.The canceration of colorectal polyps is more common than that of gastric polyps.

ObjectiveTo investigate the curative effect of neural stem cells (NSCs) transplantation combined with monosialotetrahexosyl ganglioside (GMi) in treatment of acute spinal cord injury in rats.MethodsCompressive spinal cord injury model at T8 segment was established in the adult SD rats that were then randomly divided into three groups, ie, control group, NSCs transplantation group and NSCs + GM1 group.Continuous observation was performed at 1,2, 4 and 8 weeks.Functional neurological recovery of the injured spinal cord was evaluated with motor function scale, pathology, transmission electron microscopy and somatosensory evoked potential (SEP).ResultsThe motor function of the lower extremities was recovered at different degrees in three groups.While the motor function recovery level of the animals and the positive staining cells of the calcitonin gene-related peptide (CGRP) in the NSCs + GM1 group were higher than those in the other two groups at 4 and 8 weeks (P ＜ 0.01).Compared with control group and NSCs group, focal necrosis and small vessel regeneration were observed only in the center of the injured segment in the NSCs + GM1 group at 8 weeks.Electron microscope scan showed edema under the membrane of the large myelin sheath in the control group, much intact myelin sheath, well-differentiated neurons and many kinds of synapse vesicles in the NSCs + GM1 group.The latent period of SEP was shortened markedly in the NSCs + GM1 group two weeks after transplantation (P ＜0.05).The latent period shortening was apparent in the NSCs group at 4 and 8 weeks after transplantation but was still longer than that in the control group.ConclusionsTransplantation of neural stem cells combined with use of GM1 can protect the nervous tissues after spinal cord injury, when GM1 reconstructs the spinal cord through promoting differentiation of the transplanted stem cells and linking with the host cells.

OBJECTIVETo probe into the correlativity of the therapeutic effect of acupuncture combined with traction on prolapse of lumbar intervertebral disc with the three-dimensional location.

METHODSAccording to the three-dimensional location developed by HU You-gu, the position of the prolapse of lumbar intervertebral disc in the spinal canal was located from the sagittal plain, frontal plain and horizontal plain. One hundred and thirty patients with prolapse of lumbar intervertebral disc and completion of clinical data were treated with acupuncture, and the therapeutic effects were analyzed with three-dimensional location.

RESULTSAmong 98 cases in the effective group, 73 cases had the prolapse at the I plane in sagittal location, accounting for 74.49%, 82 cases had the prolapse at the 1, 2 zone in horizontal location, accounting for 83.68%, 52 cases had the prolapse at the a area in frontal location, accounting for 53.06%; among the 32 cases in the ineffective group, 10 cases had the prolapse at the I plane, accounting for 31.25%, 12 cases in the 1, 2 zone, accounting for 37.50%, 3 cases in the a area, accounting for 9.38%. There was a statistically significant difference between the two groups in the location.

CONCLUSIONThe three-dimensional location can objectively show the size, direction, position, and the characteristics of the protruded discs, and correctly infer the pathological changes of the affected nerve root. Acupuncture combined with tract has a better effect on I plane, 1-2 zone, and a area.

Objective:It introduced the application of bayesian network in real-world data and the implementation of Tetrad software, so as to provide methodological application reference for medical researchers.Methods:Real-world data for diabetes diagnosis had been taken as an example. UCI machine learning database Pima-Indian-diabetes data set was used as case data, Bayesian network ratiocination was carried out according to the construction order of bayesian network of Tetrad software.Results:When the screening age was over 30 years old, impaired glucose tolerance, abnormal serum insulin two hours after meal, body weight index and family genetic index were large, the probability of diabetes onset from 34.99% to 83.33%.Conclusions:The bayesian network realized by Tetrad software provides a powerful tool for causal inference of real-world data, and promoted the objective and quantitative interpretation of the dependence between variables.

Objective To investigate the safety and efficacy of mitral valve replacement combined with cryoablation Maze surgery in patients with atrial functional mitral regurgitation (AFMR). Methods From January 2014 to June 2020, patients with AFMR who underwent mitral valve replacement in our department were enrolled. They were divided into two groups, a cryoablation Maze group who received cryoablation Maze surgery during mitral valve replacement, and a non-cryoablation Maze group who did not receive cryoablation Maze surgery. The baseline data, surgical data, efficacy, and prognosis between the two groups were compared. Results Finally 85 patients were enrolled. There were 16 males and 24 females with an average age of 58.65±6.86 years in the cryoablation Maze group, and 24 males and 21 females with an average age of 61.29±8.30 years in the non-cryoablation Maze group. There was no statistical difference in baseline data between the two groups (P＞0.05). The aortic occlusion time and extracorporeal circulation time of the cryoablation Maze group were longer than those of the non-cryoablation Maze group with statistical differences (P＜0.01). There was no statistical difference in postoperative ICU retention time, ventilator assistance time, length of hospital stay, intraoperative blood loss, drainage volume on the first day or occurrence rate of complications (temporary pacemaker application, electrical cardioversion, thoracic puncture drainage, hospitalization death) between the two groups (P＞0.05). At the time of discharge, postoperative 3-month, 6-month, 12-month, and 24-month, the maintenance rates of sinus rhythm in the non-cryoablation Maze group were statistically different from those of the cryoablation Maze group (P＜0.001). Compared with the non-cryoablation Maze group, the decrease values of left atrial diameter, left ventricular end-diastolic diameter, left ventricular end-systolic diameter and pulmonary artery systolic pressure were statistically different (P＜0.05). Postoperative cardiac function grading of both groups was grade Ⅰ or Ⅱ, which was significantly improved compared with preoperative level, but there was no statistical significance between the two groups (P＞0.05). There was no statistical difference in the incidence of adverse events during follow-up (P＞0.05). Conclusion Cryoablation Maze surgery combined with mitral valve replacement is safe and effective in the treatment of AFMR patients, which is conducive to the recovery and maintenance of sinus rhythm, and is beneficial to the remodeling of the left atrium and left ventricle, the reduction of pulmonary systolic blood pressure, and the improvement of life quality of the patients.

Animals ; Cdc20 Proteins/metabolism* ; Cell Line ; Embryo, Mammalian/embryology* ; Embryonic Development ; Female ; Infertility, Female/metabolism* ; Mice ; Mutation ; Oocytes/metabolism*