Objective To conduct a meta-analysis to explore the merits and disadvantage of total endoscopic thyroidectomy and conventional open thyriodectomy.Methods A database searching was performed on the Chinese BioMedical Literature on disc(CBM),China National Knowledge Infrastructure(CNKI),wanfang database,VIP database and PubMed database.Prospective randomized controlled studies about total endoscopic thyroidectomy and conventional open thyroidectomy were selected and analyzed.RevMan 5.2 was used for statistical analysis.Results Eleven studies matched the selection criteria,which involved 1082 patients,among whom 505 patients underwent total endoscopic thyrodiectomy (endoscopy group) and 577 patients underwent conventional open thyroidectomy (open group).Outcomes of total endoscopy group and open group in satisfaction,operation time,drainage fluid,complications and post-operative hospital stay etc were compared.Meta analysis showed endoscopy group were supeior to open group in terms of intraoperative blood loss (WMD＝-17.86,95％ CI:[-26.18,-9.54]),postoperative hospital stay (WMD＝-0.95,95％ CI:[-1.40,-0.50])and patients' satisfaction (WMD＝4.03,95％ CI:[1.20,13.58])while the operation time was longer in endoscopy group than in open group (WMD＝12.61,95％ CI:[2.85,22.38]).There was no statistical significance on postoperative drainage(WMD＝ -0.70,95％ CI:[-32.79,31.39]) or complications (RR＝0.84,95％ CI:[0.54,1.29])for the two groups.Conclusions Total endoscopic thyriodectomy has advantages in terms of satisfaction,post-operative hospital stay,and intraopetative blood loss while it takes more operation time.There is no difference among drainage fluid or complication.

Adolescent ; Adult ; Blood Transfusion ; Child ; Child, Preschool ; Female ; Humans ; Male ; Middle Aged ; Pesticides ; poisoning ; Poisoning ; therapy ; Treatment Outcome

Aim To investigate the protective effects of YXETNZ injection on SH-SY5 Y cells damaged by oxygen-glucose deprivation ( OGD ) , and explore its functional mechanisms. Methods After 4 h of OGD, the cells were treated with 25 mg·L-1 drugs for 1 h. Subsequently, cell viabilities were measured by cell counting kit-8 ( CCK-8 kit ) and cell apoptosis was measured by caspase-3/7 assay kit according to manu-facturer’ s instructions. Furthermore, cell death was also detected by ELISA. The levels of phospho-Akt, phospho-PKA,phospho-Bad were evaluated by western blot. Results Oxygen-glucose deprivation significant-ly decreased the cell viabilities of SH-SY5Y cells, while YXETNZ injection significantly increased cell vi-abilities, phospho-Akt, phospho-PKA and phospho-Bad. Furthermore, YXETNZ injection also reduced the activities of caspase-3/7 and cytoplasmic histone-asso-ciated-DNA-fragments contents. Conclusion Our re-searches demonstrat that YXETNZ injection shows good neuroprotective effects on SH-SY5 Y cells after oxygen-glucose deprivation. The underlying mechanisms may be associated with activation of PI3 K/Akt/Bad/caspase-3/7 , cAMP/PKA/Bad/caspase-3/7 signaling pathway.

Objective To investigate the feasibility and accuracy of magnetic resonance microneurog- raphy of sciatic nerve fascicles in rabbil by correlation with the gross anatomy.Methods The 3D T_2-weigh- ted imaging(3D-T_2 MI),3D T_2-weighted imaging plus spectral presaturation with inversion recovety(SPIR), T_1-weighted imaging(T_1 WI)of the sciatic nerve in 10 rabbits were performed on a 1.5 Tesla magnetic reso- nance system.The radiological ananomy and imaging features of sciaticnerve fascicles were observed and the anterior-posterior diameter was measured on 3D T_2-weighted imagingThe imaging evaluation was correlated with the gross anatomy.The T_1 and T_2 relaxation time were determined by multiple echo spin echo and mix se- quecerespectively.Results The libial nerve and peroneal nerve in the main trunk of sciaticnerve in all 10 rabbits could be clearly displayed on the 3D T_2 WI,3DT_2WI plus SPIRand T_1WI.Strikingly,the 3D T_2 WI could delineate the fine branches of the sural nerve and posterior femural cutaneous nervesThe T_1 and T_2 relaxation time were 915 ms40 msrespectivelyGrosslythe anterior-posterior diameter of sciatic nerve trunk was3.17?0.21)mmwhile was(3.15?0.19)on 3D T_2 WI.There was no statistically significant difference(t=0.768,P=0.462).Conclusion With 1.5 Telsa MR system the microneurography of the sci- atie nerve could be achievable and the individual fascicles of sciatic nerve trunk could be clearly and accurately discriminated.

This study was aimed to screen main active site to reduce blood lipid from Xin-Mai (XM) capsule and establish HPLC fingerprint of the site, in order to study the correlativity between active site and relevant fractions of its herbs. Solvent extraction was used to separate XM capsule into different polar fractions. Intraperitoneal injection of 75% egg-yolk emulsion was used to establish mice hyperlipidemia models. And the active site was screened. Chromatographic fingerprints of the site and relevant fractions of its herbs were configured by HPLC analysis. The
retention time of peaks was utilized as index to evaluate the correlativity. The results showed that lipid-lowering effect of ethyl acetate extract and garlic essential oil was significant (P<0.01). Fingerprint of the active site in XM capsule was established with 28 fingerprint peaks and the assignment results of 27 peaks were indicated. It was concluded that the active sites to reduce blood lipid of XM capsule were ethyl acetate extract and garlic essential oil. The established fingerprint method can effectively determine the correlativity between the active site and its relevant fractions, which contributed to pharmacodynamic material foundation and quality standard.

Objective To study the effects of early application of integrated traditional Chinese medicine (TCM)and western medicine and massage on the incidence and severity of pneumonia and prognosis in the therapeutic course of infants with cytomegalovirus(CMV)infection infantile cholestatic hepatopathy(ICH)accompanied by gastric volvulus(GV). Methods A prospective randomized controlled trial was conducted. 120 infants 1-6 months old with CMV infection ICH and complicated with GV inpatients were divided into treatment group and control group (each,60 cases). The TCM Lidanheji(consisting of artemisiae capillaris 30 g,weeping forsythia 30 g,Chinese goldthread 5 g,prepared rhubarb 5 g,unpeeled root of herbaceous peony 30 g,cassia 5 g,fruit of citron or trifoliate orange 10 g,large-headed atractylodes 10 g,fruit of Chinese magnoliavine 10 g,pangolin scale 3 g and licorice root 5 g)for oral administration or enema and ganciclovir intravenous injection were given to both groups. In the control group,based on the above treatment,postural and diet therapy,prokinetics(domperidone)were given in cases with GV. The massage treatment was only applied for treatment of GV in treatment group. The pneumonia in both groups was treated in accord to the conventional diagnosis and treatment for infantile pneumonia,bronchiolitis,severe pneumonia and the guide and management of infantile community acquired pneumonia. The total number of cases with pneumonia and its severity occurring before and after treatment in the course of the disease,the clinical therapeutic effects of ICH, GV and infantile pneumonia,the clinical physical signs,biochemical indexes and the time of hospitalization were observed and compared between the two groups. Results Compared with control group,after treatment the curative rate and total effective rate of ICH,GV,infant pneumonia in treatment group were significantly higher〔the curative rate of ICH:83.05%(49/59)vs. 71.93%(41/57),total effective rate:96.61%(57/59)vs. 91.23%(52/57);the curative rate of GV:72.88%(43/59)vs. 51.79%(29/56),total effective rate:96.61%(57/59)vs. 78.57%(44/56);the curative rate of infant pneumonia:81.08%(30/37)vs. 67.44%(29/43),total effective rate:100%(37/37)vs. 100%(43/43),P<0.05 or P<0.01〕. In the treatment group,the total number of cases with pneumonia occurring in the therapeutic course and the incidence of severe pneumonia were significantly less than those in the control group〔the occurrence of pneumonia:12 cases vs. 21 cases,the incidence of severe pneumonia:16.67%(2/12) vs. 42.86%(9/21),P<0.05 or P<0.01〕. The enlargement of liver and spleen,the level of total bilirubin(TBil), direct bilirubin(DBil),total bile acids(TBA)and alanine aminotransferase(ALT)in two groups after treatment were significantly lower than those before treatment,the changes being more marked in treatment group(P<0.05 or P<0.01). The time of stay in hospital in treatment group was remarkably shortened(days:21.32±3.26 vs. 27.38±6.09, P<0.05). Conclusion Early interference with combined TCM and western medicine and massage for treatment of infants with CMV infection ICH accompanied by GV can significantly decrease the incidence of pneumonia and its severity occurring in the disease course,therefore this therapeutic method is beneficial to the treatment and prognosis of infants with CMV infection ICH.

Objective To investigate the morphological features of normal lumbar dorsal root ganglia using a three-dimensional(3D)coronal MR imaging.Methods One hundred and fifteen volunteers were included.Ages ranged from 15 to 75 years,with a mean of 40 years.Coronal 3D fast field echo(FFE) with water selective excitation(Proset)MR examination of 1150 dorsal root gangha were underwent at nerve root levels from L1 to L5.The source coronal images were further reconstructed into a series of rotational alignment coronal images with an interval angel of 12 degree using maximum intensity projection(MIP) technique.All DRGs of bilateral spinal nerve from L1 to L5 were morphologically analyzed on the original and MIP images including qualitative evaluation of the location,signal intensity,architecture and quantitative dimensional measurement.Results There were 225,225,219,210 and 160 foraminal ganglia from L1 to L5 level,respectively.The incidence of intraspinal ganglia from L3 to L5 gradually increased with a maximum at L5 level of 29.1%(X~2=188.371,P

Due to the ability of overcoming both the dimensionality and the collinear problems of the spectral data, partial least squares ( PLS ) is in ever increasingly used for quantitative spectrometric analysis, especially for near-infrared spectrum, mid-infrared spectrum and Raman spectrum. In this work, an improved PLS algorithm is proposed for efficient information extraction and noise reduction. The spectral variables are clustering to several subsets, and several sub-models are built for each subset. Then, the sub-models are re-weighted and ensemble to the final model. Experiments on two near-infrared datasets ( octane number prediction in gasoline and nicotine prediction in tobacco leafs ) demonstrate that the new method provides superior prediction performance and outperformed the conventional PLS algorithm, and the root mean square error of prediction ( RMSEP) is reduced by 32% and 22%, respectively.

Objective To determine the feasibility of magnetically labeling and tracking mesenchymal stem cells(MSCs)in vitro by using a gadolinium and fluorescent bi-functionally transfection agent of polyethylenimine.Methods A gadolinium bifunctional transfection reagent complex was obtained after the linear polyethylenimine derivative(JetPEI-FluoR)was incubated with Gd-DTPA.Mesenchymal stem cells isolated from the bone marrows of SD rats were cultured and expanded.The mesenchymal stem cells were incubated with the bi-functional labeling agents.After labeling,the MSCs were examined with fluoroscope and electron microscope and the biological characters were detected including trypan blue exclusion test,MTT,and apoptosis detection.On a 1.5 T MR system,the labeled MSCs were examined with spin echo T1 WI and T2 WI and T1 measurement with mixed sequence.After labeling,the cells were cultured and undergone routine passage.Prior MR examinations were repeated for each passage of labeled cells.All data was statistically prolessed with SPSS for Windows.Results Of 5×105 MSCs incubated with the bi-functional agents,4.25×105 MSCs were successfully labeled,the percentage of labeled MSCs was 85% fluoroscopically.The high density electron particles of gadolinium observed electron microscopically existed around cellular apparatuses,especially around Golgi apparatus.In trypan blue exclusion test,the exclusion rate of labeled MSCs with incubation duration of 3,6,12,24 h was(96.55±2.90)%,(94.17±2.56)%,(97.16±3.12)% and(94.23±2.67)%,respectively.The corresponding exclusion rate of unlabeled MSCs was(95.86±2.67)%,(92.04±2.21)%,(93.38±3.64)%and(92.12±2.53)%,respectively.There was no statistical difference of trypan blue exclusion rate between labeled cells and control unlabeled cells within 24 hours of incubation(F=4.523,P＞0.05).In the proliferation test,the optical absorption value of labeled MSC with 2.5,5.0,10.0,20.0,30.0 and 40.0 μl bi-functional labeling agent was(0.1884±0.0151),(0.1878±0.0190),(0.1741±0.0160),(0.1135±0.0215),(0.1079±0.0145)and(0.0811±0.0079),respectively.The corresponding optical absorption value of unlabeled MSCs was(0.1940±0.0116).The optical absorption value of labeled cells was not affected in case of less than 30.0 μl of Gd-DTPA(q'=0.2225-0.9458,P＞0.05).The apoptosis index for labeled cells and unlabeled cells were 5.08% and 3.86%,respectively.On T1 WI,the signal intensity and T1 relaxation time of unlabeled cells and labeled cells were 240.3±24.7 and(2457±56)ms,336.2±20.7 and(1102±64)ms,respectively,and there were significant statistical difference(t=12.656,17.889,P＜0.01).The minimal amount of cells which was detectable for T1 WI was 5×103.After routine passage,the gadolinium in the cells gradually decreased and could be tracked by MRI until the fifth passage.Conclusions The gadolinium and fluorescent bi-functionally labeling rat bone marrow mesenchymal stem cell by using the transfection agent of polyethylenimine is feasible,efficient and safe.The labeled cells could be tracked in vitro on MR imaging.

This study was aimed to explore the suppression of nitric oxide (NO) production in RAW264.7 cells by total lactones fraction from Andrographis paniculata. The inflammatory model in vitro was established by stimulating the RAW264.7 cells with lipopolysaccharide (LPS). The NO production and inhibitory rate were determined by Griess assay. Cytotoxicity was evaluated by MTT method. The results showed that total lactones fraction ofA. paniculata suppressed NO production in a concentration-dependent manner in the concentration range from 5 to 50μmol·L-1 and their IC50 values were 8.58μmol·L-1, 11.52μmol·L-1 and 8.94μmol·L-1, respectively. In this condition, major constituents were andrographolide (5-60μmol·L-1), dehydroandrographolide (5-100μmol·L-1) and neoandrographolide (5-100μmol·L-1) inhibited NO production in a dose-dependent manner with an IC50 values of 17.54μmol·L-1, 49.54μmol·L-1 and 41.80μmol·L-1, respectively. It was concluded that the NO inhibitory activity of total lactones fromA. paniculata was better than three active ingredients, which may be able to provide a theoretical foundation and scientific basis for the preparation and clinical application of total lactones fraction fromA. paniculata.