ObjectiveTo prospectively compare the effects of Prestige LP cervical disc replacement with those of anterior cervical discectomy and fusion (ACDF) in treatment of cervical disc herniation.MethodsFrom January 2008 to March 2010,a total of 87 patients were enrolled at our site as study investigating ACDF versus Prestige LP cervical disc prosthesis.Forty-four patients received the investigational device (arthroplasty group) and 43 underwent a single-level ACDF (fusion group).Visual analogue scale(VAS) neck/arm pain,Japanese Orthopedics Association (JOA) score,Short Form-36 (SF-36) both physical and mental,flexion-extension range of motion of operative and adjacent segments were evaluated preoperatively and 1 week and 3,6,12,24 months postoperatively.ResultsA total of 78 patients (89.7％) were followed up for an average 12.4 months(range,6-24).Both groups have favorably demonstrated improved functional outcomes for JOA,VAS scores and SF-36.The improvement in the VAS and JOA scores were equivalent at each follow-up point between the two groups(P＞0.05).However,arthroplasty group had statistically significant improvement as assessed by the SF-36 scores compared with the fusion group at some follow-up points (P＜0.05).In arthroplasty group,the postoperative range of motion of operative and adjacent segments showed no statistical difference with the preoperative counterpart(P＞0.05),and fusion was successful in 92.1％ of control patients.ConclusionPrestige LP cervical disc replacement is a feasible alternative to ACDF for patients with persistently symptomatic cervical disc disease and matching the inclusion criteria.

The first case of acquired syphilitic skull osteitis accompanied by syphilitic meningitis in China is reported.A 55-year-old female presented with a persistent distending pain of the frontal and occipital regions of the skull for two months.T1 weighted magnetic resonance imaging(MR1) showed muhiple lesions in the skull and linear enhancement of the meninge near the lesions.The serum and cerebrospinal fluid (CSF) were positive for Treponema pallidum particle agglutination assay (TPPA) and rapid plasma reagin circle card test(at the dilutions of 1∶32 and 1∶4 respectively).The levels of leukocyte and protein were 10 ×106/L and 0.82 g/L respectively in CSF.TP DNA was detected in the calvarial periosteum.Histopathological examination of the frontal bone showed focally destructive osteolytic lesions with obscure texture of the bone,hyperemia around the destructive bone tissue and in dura mater-like tissues,proliferation of interstitial fibrous tissue,swelling of endothelial cells and inflammatory infiltration predominantly composed of abundant plasma cells.After managed with routine treatment regimen for neurosyphilis,her headache was relieved 3 days later,nearly disappeared 15 days later,completely disappeared 30 days later.No similar headache recurred.A 5year follow up demonstrated a satisfactory long-term and short-term outcome.She was finally diagnosed with syphilitic skull osteitis complicated by syphilitic meningitis.

Objective To evaluate clinical and sexual outcomes in women with severe uterine prolapsed at child-bearing period undergoing laparoscopic high uterosacral ligament suspension combined with cervical amputation.Methods From November 2007 to March 2010,34 patients (≤50 years old) with severe uterine prolapse (prolapse group) who had already given birth and underwent laparoscopic high uterosacral ligament suspension combined with cervical amputation in Peking Union Medical College Hospital were enrolled in this retrospective study.All patients were defined as Pelvic Organ Prolapse Quantification (POP-Q) stage Ⅲ.Follow-up was performed at 1,6,and 12 months,and then annually.Anatomic failure was defined as ≥ 1 pelvic compartment classified as POP-Q ≥ stage Ⅱ.Sexual outcomes were assessed at baseline and 3-year follow-up according to validated Short-Form Prolapse/Urinary Incontinence Sexual Questionnaire (PISQ-12).Thirty one age-matched women who underwent health examinations during the same time period were selected as a healthy control group.Results Mean age of women at prolapse group were (39 ±5) years and average surgery time were (51 ±8) minutes.No severe intraoperative complications occurred,including urethral twist,bladder and rectum injury,pelvic hemotoma.All patients were followed up for more than 3 years,the mean following up period was 40 months (36-64 months).Based on stage Ⅱ of POP-Q as recurrence criteria,the anatomical success and patient satisfaction rates were both 100％ (34/34).POP-Q point C and D measurements were significantly higher after surgery then those at preoperative values [C:(-5.4±0.6) cm versus (2.2 ±0.7) cm,D:(-6.7 ±0.4) cm versus (-4.0 ±0.7) cm; P ＜0.01 for all].Three years postoperatively,33 patients were sexually active.Among the 94％ (31/33) patients who answered the PISQ-12 questionnaire,there was significant improvement in post-and preoperative total PISQ-12 scores (38 versus 26,P ＜ 0.01) and in all three subscale PISQ-12 domains (P ＜ 0.01 for all).The postoperative PISQ-12 score was similar to that of the control group (38 ± 6 versus 37 ± 3,P ＞ 0.05).Conclusion Laparoscopic high uterosacral ligament suspension combined with cervical amputation conferred satisfying long-term anatomic and sexual function outcomes in women at child-bearing age.

Objective To investigate the significance of B-type natriuretic peptide (BNP) in acute coronary syndrome(ACS).Methods 151 in-patients of ACS during May 2006 to June 2008 were selected as the treatment group.Other 212 impatients with essential hypertension were selected as control group.Blood lipid,blood glucose,blood routine,renal function,high sensitive C-reaction protein (hs-CRP) and BNP were examined in all patients.Their blood pressure,heart rate,and history of smoking,hypertension,diabetes mellitus and hyperlipidemia 62.0±14.2,t = 5.043,P＜0.001 ),blood creatinine [ (95.0±67.4 ) vs.(72.8±29.0) μmol/L,t = 4.164,P ＜0.001 ),blood uric acid[ (360.2±104.4 ) vs.(300.8±92.7 ) μmol/L,t = 5.521,P ＜ 0.001 ],BNP (80.81 vs.352.38 ng/L,Z = - 7.295,P ＜ 0.001 ),hs-CRP (7.99 vs.17.08,Z = - 3.983,P ＜ 0.001 ),white blood cells (WBC) [ (7.843 +3.025)×109/L vs.(6.333±3.569)×109/L,t =4.209,P ＜0.001 ],monocytes [ (0.522±0.201)×109/L vs.(0.417±0.157)×109/L,t = 5.084,P ＜0.001 ] and blood glucose [ (6.518±2.303 ) vs.(5.691±2.085 ) mmol/L,t = 3.461,P = 0.001 ] had significant difference.Systolic blood pressure had difference between two groups [ (134.7±27.8 ) vs.(142.0±26.3 ) mm Hg,t = 2.536,P=0.012 ].However,the percentage of smoking[ 43.7% (66/151)vs.23.1% (49/212),X2 = 17.283,P ＜0.001 ] and male gender[ 74.8% ( 113/151 )vs.48.6% ( 103/212),X2 = 25.217,P ＜ 0.001 ) ] had significant difference between two groups ( P ＜0.001 ).Multivariable regression analysis showed that age (X2 = 10.369,P =0.001 ),gender (X2 = 12.836,P ＜ O.001 ),BNP (X2 =4.807,P =0.028) and WBC(X2= 10.788,P =0.001 ) were the main factors of difference between the two groups.Moreover,BNP was linearly correlated with left ventricular ejection fraction(EF) in ACS patients (t =5.789,P ＜ 0.001 ).Conclusion Old age,male,WBC and BNP are closely related with ACS,of which BNP has certain predictive value for ACS.

Objective To evaluate the therapeutic effect of segmental hepatectomy for intrahepatic bile duct stones.Methods In this study, 414 patients suffering from intrahepatic bile duct stones underwent hepatectomy from Jan 1981 to Dec 2001. Stones distribution, operation modality,postoperative complication and therapeutic effect were evaluated. Results Postoperative complications occurred in 72 cases(17.4%), mortality was 0.7%. A follow up of 2 to 22 years was achieved in 305 patients (73.7%), with excellent or good result in 88.9%, residual stone in 15.7%,and stone recurrence in 4.6%.Conclusion Appropriate use of hepatectomy is effective for the treatment of intrahepatic bile duct stones.

Objective To investigate the feasibility of iterative model reconstruction (IMR) combined with low tube voltage and low iodine intaken of contrast media in head and neck CT angiography (CTA). Methods Eighty patients with clinical suspicion of head and neck vascular disease underwent head and neck CTA were enrolled in this prospective study. According to random number table, patients were randomly divided into two groups. Group A (n=40) was scanned according to the protocol of 120 kV, 50 ml iopromide (370 mg/ml) and filtered back projection (FBP) reconstruction, and group B (n=40) was scanned with 80 kV, 30 ml iohexol (300 mg/ml) and IMR, while the other parameters kept consistent. Mann-Whitney U test was used to compare the enhanced CT value of arteries, image noise, signal noise ratio (SNR), contrast noise ratio (CNR), the score of image quality, effective radiation dose (ED) and iodine intaken of contrast media between two groups. Results The CT value at the origin level of common carotid artery were (316.9 ± 53.0) and (433.4 ± 101.8)HU in group A and B, image noise were (28.1 ± 6.8)and (12.1 ± 2.6)HU ,SNR were (11.9 ± 3.2) and (37.7 ± 13.3) ,and CNR were (10.2 ± 2.9) and (32.6 ± 13.3), respectively. There were showed significant differences in CT value, image noise, SNR and CNR between two groups (Z=-5.490,-7.592,-7.698,-7.660, P<0.05). The CT value at the origin level of internal carotid artery were (359.5 ± 54.3) and (443.5 ± 120.1) HU in group A and B, image noise were (18.8±6.2) and (6.8±1.7) HU ,SNR were 21.5±8.7 and 69.7±27.4 ,and CNR were 18.0±7.3 and 62.7± 26.4, respectively. The significant differences were acquired in CT value, image noise, SNR and CNR between two groups (Z=-3.022,-7.376,-7.496,-7.515, P<0.05). The CT value at M1 segment level of middle cerebral artery were (321.1±47.3) and (401.6±104.0) HU in group A and B, image noise were (32.3± 17.2) and (11.2 ± 2.7) HU,SNR were 12.4 ± 5.6 and 39.3 ± 18.4,and CNR were 10.7 ± 4.7 and 36.4 ± 17.7, respectively. There also showed significant differences in CT value, image noise, SNR and CNR between two groups (Z=-3.527,-7.487,-7.482,-7.535, P<0.05). The score of image quality of group A and B were 3.9 ± 0.7 and 4.5±0.6, which also showed significant difference between two two groups (Z=-3.517, P<0.05). The ED were (2.78 ± 0.13) and (0.84 ± 0.04) mSv for group A and B, which also showed significant difference between the two groups (Z=-7.706, P<0.05). The iodine intaken of contrast media were 1.85 g and 0.90 g in group A and B. Conclusion IMR combined with low tube voltage and low iodine intaken of contrast media can not only decrease effective radiation dose and iodine intaken of contrast media significantly, but also improve the imaging quality in head and neck CTA examination.

Objective To investigate an effective endoscopic management of biliary anastomotic stric-tures (AS) following orthotopic liver transplantation (OLT) and to evaluate the factors which may effect the ontcome. Methods Sixty-five patients, who were diagnosed as AS 3 months after OLT, underwent ERCP. Af-ter adequate dilation of the narrowing bile ducts, plastic stents, as many as possible, were inserted across the strictures and kept in place for at least six months. Results A total of 90 consecutive endoscopic procedures were performed in 65 patients. Before stents placement, the strictures were dilated by catheter or balloon (di-ameter range: 6-10 mm), or not dilated, according to the status of the bile ducts. An average of 3 (ranging from 2 to 6) plastic stents were placed with mean total size of 22.8 F (range 14-42 F), and the stents were kept for 8. 0 months on average (range 0.2-37.8 months). Of 90 procedures of stents placement, 54 (60%) were followed by stents removal and cholangiography, which confirmed stricture resolution in 26 (48.1%). The stricture resolution rate was 81.0% (17/21) in patients who underwent balloon dilation followed by more than 3 stents (> 21 F) for at least 3 months. Stricture re-occurred in 3 patients after stents removal, in whom stents were kept less than six months. Conclusion Endoscopic sequential intervention is effective for post-OLT biliary strictures according to the stage and grade. Radical dilation with maximal stenting can lead to complete resolution of AS. To achieve better result, if possible, balloon dilatation followed by three or mere endoprothe-ses (of at least 21 F) sustaining for more than 6 months is necessary.

The expression of DNA ploidy, the cell cycle and Ki67 antigen in nasopharyngeal carcinoma (NPC) were studied and their relationship with the clinical biological behaviors and prognosis of NPC was evaluated. Biopsied specimens of NPC were made into cell suspension. By using cytometric double labeling Ki67 and DNA method, the expression of DNA ploidy, the cell cycle and Ki67antigen were analyzed. The patients were followed-up for about 3 years and the relationship between the above-mentioned parameters and the clinical biological behavior and prognosis of NPC were evaluated. Of the 62 cases of NPC, the DNA aneuploid accounted for 29.03 %. The S phase cells accounted for 0 to 54 % in the cell cycle and the positive expression of Ki67 ranged from 0 to 52 %.There were 40 cases of LPI (64.5 % ) including 15 negative cases and 22 cases of HPI (35.5 % ) respectively. The DNA anueploid content was positively related to the S phase cells. The patients having a low expression of Ki67 or DNA aneuploid in tumor cells were not sensitive to chemotherapy, liable to metastasis to distant organs and had a poor prognosis, while Ki67 showed no correlation with DNA ploidy and the cell cycle. It was suggested that DNA ploidy and Ki67 could be used as an independent and objective marker to evaluate the radiosensitivity and prognosis of NPC.

Objective To establish a rapid assay with high sensitivity and specificity based on the sequences for group specific gene (GS) and pathogenicity island pag A gene.Methods The PCR primers and probes were designed after the whole sequence was systemically analyzed with bio-informafion tools and blasted with Genebank database.The amplicons were inserted into plasmids so that they could be used as the standard templates to evaluate the sensitivity of the diagnostic system.This assay was based on TaqMan probes and portable Smartcycle PCR machine.Results The detection level was approximately 100 copies per reaction.There was no cross-reaction with other species of Bacillus.This assay could be completed in one hour in laboratory.Conclusion The duplex TaqMan PCR assay could be used to detect Bacillus anthracis rapidly with high sensitivity and specificity.

OBJECTIVETo study the chemical constituents of Tibetan Madicine Wangla.

METHODSepearing the chemical constituents by means of chromatography and identifying their structures on the basis of MS and NMR spectra and TLC with authentic samples.

RESULTEight compounds were isolated as 4-[(4-hydroxyphenyl) methoxy]benzenemethanol(I), 4,4'-dihydroxydiphenyl methane(II), 4,4'-dihydroxydibenzyl ether(III), gastrodin(IV), 4-hydroxy benzenemethanol(V), 4-hydroxybenz aldehyde(VI), beta-sitosterol(VII) and beta-daucosterol(VIII).

CONCLUSIONAll the compounds were obtained from genus Coeloglassum for the first time. The compound I is a new natural product.

Benzyl Alcohols ; chemistry ; isolation & purification ; Glucosides ; chemistry ; isolation & purification ; Orchidaceae ; chemistry ; Plants, Medicinal ; chemistry ; Rhizome ; chemistry ; Sitosterols ; chemistry ; isolation & purification ; Tibet