Objective To investigate the clinical manifestation, diagnosis, therapies and medical economics of cesarean scar pregnancy (CSP). Methods From Jan. 2005 to Dec. 2008, 96 patients with CSP treated in Obstetrics and Gynecology Hospital of Fudan University were studied retrospectively. Those cases were divided into 3 groups. Thirty-three patients were treated with methotrexate (MTX) 50 mg/m2 intravenously guttae in group A. Among that 18 cases were treated with MTX, after 5 - 10 days they underwent dilation and curettage of uterus; 15 cases were given by dilation and curettage first if the level of serum human chorionic gonadotrophin-β(β-hCG) descent less than 30% in every 48 hours for 3 times after curettage, then MTX (50 mg/m2) intravenously guttae. Sixty patients were treated with MTX 100 mg bilateral uterine artery injection and embolization in group B. After 2 days, they underwent curettage.Group C: 3 patients were treated with laparotomy lesion excision. The following clinical parameters were compared, including blood loss( M), lesion diameter (-x±s), blood β-hCG level (M)before treatment, the number of cases with myometrial thickness anterior to the CSP ≤3 mm, the resistant index (RI) ≤0. 5,expense(-x ± s), hospital days(-x ±s) in those 3 groups. The correlation of blood loss with lesion diameter and blood β-hCG level was studied. Results ( 1 ) Clinical manifestation: bleeding loss were 20 ml in MTX +curettage of group A, 10 ml in curettage + MTX of group A, 12 ml in group B and 200 ml in group C. The volume of bleeding loss in group C was significantly higher than those in group A or group B ( P ＜ 0. 01 ).The lesion diameter were ( 23 ± 15 ) mm in curettage + MTX of group A and ( 30 ± 14 ) mm of group B ,which were higher than ( 16 ± 8 ) mm of MTX + curettage of group A (P ＜ 0. 01 ). The lesion diameter of (52 ± 7 )mm in group C were significantly bigger than those in the other groups ( P ＜ 0. 01 ). The level of blood β-hCG levels were 21 592 U/L in MTX + curettage of group A, 979 U/L in curettage + MTX of group A,which reach statistical difference ( P ＜0. 05). The level of blood β-hCG levels were 11 312 U/L in group B and 101 U/L in group C. Among 28 cases with Rl≤0. 5,there was 8 cases in group A (24% ,8/33),18 cases in group B ( 30%, 18/60) and 2 cases in group C (2/3). Among 23 cases with myometrial thickness anterior to the CSP ≤ 3 mm, there was 21 cases in group B (35%, 21/60 ), which were significantly higher than 2 in group A (6%, 2/33 ) and none in group C ( P ＜ 0. 05 ). The expense were ( 5578 ± 3679) yuan in MTX + curettage of group A and (5346 ± 2765 ) yuan in curettage + MTX of group,which did not reach statistical difference (P＞0. 05). The expense were (7860 ±2104) yuan in group B,which were significantly higher than those in group A and (5004 ± 421 ) yuan in group C (P ＜ 0. 05 ). The hospital days were ( 15 ±8) days and ( 19 ± 14) days of group A, ( 16 ± 10) days in group B and ( 17 ±8)days in group C, there was no significant difference among those treatments ( P ＞ 0. 05 ). (2) Correlatin:there was positive correlation between bleeding loss and lesion diameter( r = 0. 31, P ＜ 0. 05 ) or blood β-hCG level ( r = 0. 35, P ＜ 0. 05). Conclusions MTX intravenously guttae, MTX uterine artery injection and embolization, and laparotomy lesion excision were all properly used in treatment of CSP. MTX uterine artery injection and embolization was recommended for those with big lesion, high β-hCG level, less myometrial thickness anterior to the CSP or plentiful blood supply of the lesion but the expense might be high.

Objective To study effects of palm pressing peripherally inserted untral catheter(PICC) and mandible-pressing-on-shoulder on PICC′s misplacement in jugular veins during intubation. Methods Seventy-six patients undergoing intubation with PICC were randomized into observation group and control group equally by random digital table. The palm pressing PICC method was used in the observation group and the mandible-pressing-on-shoulder method was used in the control group. The two groups were compared in terms of the incidence of PICC misplacement. Result The misplacement rate of PICC in the experiment group was significantly lower than that in control group (P<0.01). Conclusion Palm pressing method is much effective in prevention of PICC misplacement in jugular veins and worth promoting especially in hospitals of basic level.

A detailed review is given in this paper on various current 3D display methods for sequential 2D medical images and the new development in 3D medical image display. True 3D display, surface rendering, volume rendering, 3D texture mapping and distributed collaborative rendering are discussed in depth. For two kinds of medical applications: Real-time navigation system and high-fidelity diagnosis in computer aided surgery, different 3D display methods are presented.
Algorithms ; Image Processing, Computer-Assisted ; methods ; Imaging, Three-Dimensional ; methods

Objective To explore the role of sialic acid-binding immunoglobulin-like lectin-one (Siglec-1) in the process of atherosclerotic inflammation induced by oxidized low-density hpepmtein (ox-LDL). Methods Ox-LDL was synthesized by oxidization of native LDL and different concentration of ox-LDL was added to the culture medium of RAW264.7. Forty-eight hours later, cells and supernatants were collected separately. The expression of Siglec-1 protein and mRNA were measured by flow cytometry(FCM) and real-time quantitative RT-PCR, respectively. The levels of monocyte chemotactic protein-1 (MCP-1), macrophage inflammatory protein-1α(MIP-1α) and IL-8 in supernatants were determined by ELISA. Re-sults By the stimulation of ox-LDL, Siglec-1 protein and mRNA on RAW264.7 cells were significantly in-creased, meanwhile, the cytokines levels in culture supematants were significantly higher than that in the control group. And both Siglec-1 expression and cytokine secretion were ox-LDL dose-dependent. Conclu-sion Ox-LDL can increase Siglec-1 protein and mRNA expression and some inflammatory cytokines secre-tion on RAW264.7 cells in a dose-dependent manner. Manifested by enhanced Siglec-1 expression, the acti-vated macmphages may take a part in the development and progression of atherosclerosis.

control relatives.A ratio of s/q approached1/q with Penrose' s method.Heritability of SLE was78.8%?4.45%in the first-degree relatives,58.8%?10.9%in the second-degree relatives,and39.2%?32.0%in the third-degree relatives.The weighted mean heritability was75.2%?4.12%.Conclusions SLE has characteristics of polygenic disease.Genetic factor might play an important role in the liability of SLE.

Objective To study the application of pediculated skin flaps in the treatment of com-plicated long urethratresia. Methods From March 1999 to May 2006, a total of 18 male patients with complicated long urethratresia were treated by using the pediculated skin flaps. The causes of urethratresia were 7 cases of postoperative pelvic fractures with posterior urethral stricture, 4 cases of transurethral intravesical chemotherapy, 3 cases of postoperative bulbar urethral stricture, 2 cases of gonorrhea, and 2 cases of long-time urethral catheter placement. Four cases were urethratresia nf cor-pus penis, 7 cases were anterior urethral obliteration, 7 cases were posterior urethral and anterior ure-thral obliteration. Urethro-perineal fistulas were found in 8 cases, posterior urethrorectal fistulas in 7 cases, false passage formations in 8 cases. The average length of urethratresia was 15.1 cm (range 8. 7 to 23. 0 cm). The urethral scar was rasected, the posterior urethrorectal fistula was repaired, and different kinds of pediculated skin flaps depending on the length of urethratreaia was used. Results All the patients were followed up for 12 to 18 months (mean 14 months). Fifteen patients voided well 3 months postoperatively, none of the urography showed stricture. The mean peak urinary flow rate was 16. 9 ml/s (range from 16. 5 to 21.7 ml/s). Of the other 3 cases, 1 case experienced difficult voi-ding due to the long and circuitous tabularized skin flap but recovered after proper shortening;1 case had restenosis for the infection of anastomosis but voided well after excision and reanastomnsis;1 casehad a urinary fistula resulting from hematoma and infection, but was successfully treated by the neo-plasty of the urinary fistula. The mean peak urinary flow rate was 17.0 ml/s (range 15.0 to 22.0 ml/s) for 17 patients 6 months postoperatively, except for one who experienced genuine urinary incon-tinence. At 9-18 months after operations, the mean peak urinary flow rate was 17.5 ml/s (range 15.8 to 22.5 ml/s) for 17 patients. Conclusion The single-stage urethroplasty based on pediculated skin flaps is a reliable and durable method for complicated long urethratresia.

Gelsemium elegans is a traditional Chinese herb of medicinal importance, with indole terpene alkaloids as its main active components. To study the expression of the most suitable housekeeping reference genes in G. elegans, the root bark, stem segments, leaves and inflorescences of four different parts of G. elegans were used as materials in this study. The expression stability of 10 candidate housekeeping reference genes (18S, GAPDH, Actin, TUA, TUB, SAND, EF-1α, UBC, UBQ, and cdc25) was assessed through real-time fluorescence quantitative PCR, GeNorm, NormFinder, BestKeeper, ΔCT, and RefFinder. The results showed that EF-1α was stably expressed in all four parts of G. elegans and was the most suitable housekeeping gene. Based on the coexpression pattern of genome, full-length transcriptome and metabolome, the key candidate targets of 18 related genes (AS, AnPRT, PRAI, IGPS, TSA, TSB, TDC, GES, G8H, 8-HGO, IS, 7-DLS, 7-DLGT, 7-DLH, LAMT, SLS, STR, and SGD) involved in the Gelsemium alkaloid biosynthesis were obtained. The expression of 18 related enzyme genes were analyzed by qRT-PCR using the housekeeping gene EF-1α as a reference. The results showed that these genes' expression and gelsenicine content trends were correlated and were likely to be involved in the biosynthesis of the Gelsemium alkaloid, gelsenicine.
Genes, Essential ; Gelsemium/genetics* ; Peptide Elongation Factor 1/genetics* ; Transcriptome ; Gene Expression Profiling/methods* ; Alkaloids ; Real-Time Polymerase Chain Reaction/methods* ; Reference Standards