OBJECTIVETo introduce an arthroscopic technique in managing recurrent dislocation of the patella and its clinical results.

METHODSSixteen patients with recurrent patellar dislocation were reviewed, including 3 males and 13 females. The average age was 17.6 years old (ranged from 14 to 32 years). The patients suffering from patellar sub-luxation averaged 18.5 months (ranged from 6 to 23 months)before operation. These patients were treated with lateral patellar retinacular release outside the synovial bursa of knee joint and medial patellofemoral ligament reconstruction using the semitendinosus tendon free autograft. The Lyshohm scores before and after operation were used to evaluate outcomes at the final follow-up.

RESULTSAll the patients were followed up, and the duration ranged from 6 to 48 months, with an average of 12 months. There was no recurrence. The Q angle decreased from (16.4 ± 3.7)° to (10.1 ± 1.4)°; insall index decreased from 1.37 ± 0.25 to 1.28 ± 0.23; congruence angle decreased from (21.3 ± 2.6)° to (5.86 ± 2.23)°; Lysholm score improved from 76.1 ± 5.2 to 89.8 ± 4.1 at 6 months after operation.

CONCLUSIONCompared with conventional procedure, arthroscopic surgery for recurrent dislocation of the patella achieves excellent outcomes with minimum invasion.

Adolescent ; Adult ; Arthroscopy ; Bursa, Synovial ; surgery ; Female ; Humans ; Knee Joint ; surgery ; Male ; Patellar Dislocation ; physiopathology ; surgery ; Patellar Ligament ; surgery ; Range of Motion, Articular ; Treatment Outcome ; Young Adult

Objective To explore the relationship between X - linked spondyloepiphyseal dysplasia tarda (SEDL) gene escaping X chromosome inactivation( XCI) and SEDL phenotype. Methods RT - PCR was performed on total RNA which was isolated from blood samples of patients, female carriers and controls. Patients and female carriers were selected from the pedigree with SEDL caused by the mutation (IVS2 - 2A→C) of the gene. cDNA was analyzed by polyacrylamide gelelectrophoresis(PAGE). Results PAGE data indicateed that female carriers expressed both normal and mutant SEDL mRNA,meaning the SEDL gene escaping XCI. Family investigation showed carrier females in the SEDL pedigree presented no symptoms. Conclusions The SEDL gene escaping X chromosome in-activation is firstly identified from human body. This may explain that carrier females present no symptoms.

Objective To investigate the infections caused by Staphylococcus aureus carrying Panton-Valentine leukocidin(PVL)genes.Methods 26 isolates of Staphylococcus aureus carrying Panton- Valentine leukocidin(PVL)genes were determined by multiplex PCR.Multilocus sequence typing(MLST) was used to determine the STs of the isolates.The genotypes of SCCmec were also determined by another multiplex PCR in the isolates of methicillin-resistant Staphylococcus aureus(MRSA).Results Among 26 isolates,there were 6 isolates of ST88 MRSA,7 isolates of ST88 methicillin-susceptible Staphylococcus aureus (MSSA),5 isolates of ST239 MRSA,5 isolates of ST398 MRSA,1 isolate of ST25 MRSA,1 isolate of ST30 MRSA and 1 isolate of ST59 MRSA.20 isolates were hospital-acquired(HA)which mainly caused pulmonary infection and post-operative pyogenic infection.6 isolates were community-acquired(CA)which mainly caused soft tissue necrosis.Among 19 isolates of MRSA,ST88-SCCmec Ⅲ A,ST239-SCCmec Ⅲ,ST398- SCCmec Ⅳ and ST398-SCCmec Ⅲ were main types.26 isolates were isolated from 14 wards.ST88-SCCmec Ⅲ A-MRSA caused clone spread in maternity department in our hospital.Conclusion ST88,ST239 and ST 398 are main STs in Staphylococcus aureus carrying PVL in our hospital.The isolates not only cause nosocomial infections but also cause community infection.

OBJECTIVETo investigate the clinical manifestation and surgical outcome of spinal osteoblastoma.

METHODSFrom June 2006 to July 2010, 11 patients with spinal osteoblastoma treated surgically were analyzed retrospectively. There were 7 males and 4 females with an average age of 23.5 years (range, 16 - 34 years). The tumors were located at C(5) in 3, C(6) in 4, C(7) in 2, C(6) ~ T(1) in 1 and T(11) in 1. Based on WBB classification, 9 were 1 - 3 or 10 - 12 and 2 were 4 - 9 and 1 - 3. All the operations had been performed with en-bloc resection. The posterior approach was used for 9 patients, and combined posterior and anterior approach was used for 2 patients. Reconstruction using instrumentation and fusion was performed using spinal instrumentation in 8 patients. To evaluate the change of pain before and after the operation by visual analogue scales (VAS), and to assess functional status of the spine by McCormick scale. Imaging test was used to review the stability and recurrence rate of spine cord, and the confluence of graft bones.

RESULTSAll cases were followed up for 12 - 64 months (average, 28.4 months). The average surgical time was 130.5 minutes (range, 90 - 210 minutes), with the average intraoperative blood loss of 560 ml (range, 300 - 1000 ml). During the follow-up period, the VAS grade reduced from 6.3 ± 1.1 to 2.5 ± 1.0 (t = 8.48, P < 0.05). There were 8 patients had neurological function improved and 3 remained no change which was evaluated by McCormick scale for spinal function status at final follow-up.

CONCLUSIONSSpinal osteoblastoma has its own specific radiographic feature. There are some recurrence in simple curettage of tumor lesion. The thoroughly en-bloc resection of tumor or spondylectomy, bone fusion and strong in ter fixation are the key points for successful surgical treatment.

Adolescent ; Adult ; Female ; Follow-Up Studies ; Humans ; Male ; Osteoblastoma ; diagnostic imaging ; surgery ; Pain Measurement ; Radiography ; Retrospective Studies ; Spinal Neoplasms ; pathology ; surgery ; Treatment Outcome ; Young Adult

Objective To investigate the correlation between inflammatory cells, body temperature changes, and TCM syndromes of deep venous thrombosis (DVT) patients in acute and subacute phases. Methods The data of age, gender, body temperature, blood routine, venous ultrasonography, and four diagnostic information of 130 DVT patients in acute and subcute phases were collected and analyzed in a cross-sectional study. The correlation between inflammatory cells and the changes of body temperature and TCM syndromes were analyzed. Results Among 130 DVT patients, 37 patients had damp-heat syndrome, 64 patients had blood stasis and dampness syndrome, and 29 patients had qi stagnation syndrome. Neutrophils increased most obviously in blood stasis and dampness syndrome (P<0.05), which had close correlation with the skin redness (OR=1.287, 95%CI: 9.412-21.247). The mononuclear cells increased most obviously in the damp-heat syndrome, which has close correlation with nouhof (OR=7.364, 95%CI:1.189–45.603), high skin temperature (OR=6.683, 95%CI:1.791–24.938), skin tightness (OR=6.107, 95%CI:1.423–26.203) and weakness (OR=3.302, 95%CI: 1.002–9.169). The temperature rising was the most common in the damp-heat syndrome, and the increase of mononuclear cells was the most common one. Conclusion DVT is often accompanied with elevated levels of inflammatory cells and body temperature. Damp-heat syndrome has close correlation with body temperature and mononuclear cells increasing. Dampness and blood stasis syndrome and neutrophils are closely related.

Objective To investigate the genetic polymorphism of mec Ⅰ in the clinical isolates of methicillin-resistant Staphylococcus anreus(MRSA).Methods 40 isolates(MRSA)carrying mecA gene were selected randomly from the clinical isolates of Staphylococcus anreus from Jan,2005 to Aug,2006 in our hospital.The mec Ⅰ gene was detected by PCR followed with sequencing.Staphylococcal cassette chromosome mec(SCCmec)in MRSA were detected by multiplex-PCR.Agar dilution method was used for determining the MICs of oxacillin against MRSA.Results 35 of 40(87.5%)MRSA carried mec Ⅰ gene.All isolates carrying mec Ⅰ gene have mecI 202C→T substitution,which resulted in Gln at 68 aminophenol position replaced by stop condon.32 isolates carried single point mutation.3 isolates carried double-point mutation,including additonal A at 3 positon,A→C at 41 position and C→T at 142 position beside C→T at 202 position,respectively.Among 35 isolates carrying mec Ⅰ gene,there were 27 isolates of SCCmec Ⅲ, 7 isolates of SCCmec Ⅲ A and 1 isolate of SCCmec Ⅱ.Among 5 isolates with deletion of mec Ⅰ gene,there were 3 isolates of SCCmecⅣ,1 isolate of SCCmec Ⅰ and 1 isolate of non-known SCCmec tpye.The MICs of oxacillin were 256-512 ?g/ml,≥512 ?g/ml and 8-256 ?g/ml in 31 isolates with single point mutation at 202 position in mec Ⅰ gene,3 isolates with double-point mutation in mecI gene and 5 isolates with deletion of mec Ⅰ gene,respectively.1 isolate with single point mutation in mec Ⅰ gene had contrary result(MIC

To explore an efficient strategy for further development of anticancer fluoroquinolone candidates derived from ciprofloxacin, a heterocyclic ring as the bioisosteric replacement of C3 carboxyl group led to a key intermediate, oxadiazole thiol (5), which was further modified to the bis-oxadiazole methylsulfides (7a-7h) and the corresponding dimethylpiperazinium iodides (8a-8h), respectively. Structures were characterized by elemental analysis and spectra data, and their anticancer activities in vitro against CHO, HL60 and L1210 cancer cells were also evaluated by MTT assay. The preliminary results show that piperazinium compounds (8) possess more potent activity than that of corresponding free bases (7).
Animals ; Antineoplastic Agents ; chemical synthesis ; chemistry ; pharmacology ; CHO Cells ; Cell Line, Tumor ; Cell Proliferation ; drug effects ; Ciprofloxacin ; chemistry ; Cricetinae ; Cricetulus ; Drug Design ; HL-60 Cells ; Humans ; Inhibitory Concentration 50 ; Leukemia L1210 ; Molecular Structure ; Oxadiazoles ; chemical synthesis ; chemistry ; pharmacology ; Piperazines ; chemical synthesis ; chemistry ; pharmacology

OBJECTIVESTo study the expression of nicotinamide phosphoribosyl transferase (Nampt) and vascular endothelial growth factor-A (VEGF-A) in gastric carcinoma and investigate their correlations to clinicopathologic features and prognostic significance.

METHODSThe proteins of Nampt and VEGF-A in 68 specimens of gastric carcinoma and 59 specimens normal gastric tissue were detected by immunohistochemistry during January 2000 to December 2004, and the 68 patients were followed up.

RESULTSNampt protein was detected in the cytoplasm of both tissues, and Nampt in gastric carcinoma (13 ± 5) were significantly higher than that in normal gastric tissue (6 ± 3) (t = 7.46, P < 0.01). The expression of Nampt was correlated to invasive depth (F = 4.693, P = 0.034), lymph node metastasis (F = 4.027, P = 0.049), clinical TNM stage (F = 9.979, P = 0.002), but not to gender, age, tumor location, tumor size, differentiation (P > 0.05). The expression of Nampt is correlated with survival of patients that underwent surgical resection for gastric cancer. The survival rate of patients in negative of Nampt was very higher than that of the positive patients, and its co-expression with VEGF-A showed a trend towards poorer survival. The positive correlation was found between the expression of Nampt and VEGF-A in gastric carcinoma (r = 0.293, P = 0.015).

CONCLUSIONSThe expression of Nampt is positively correlated to that of VEGF-A in gastric carcinoma. The correlation between the expression of Nampt and VEGF-A in gastric carcinoma plays an important role cooperatively in carcinogenesis, development and metastasis of gastric carcinoma.

Adult ; Aged ; Aged, 80 and over ; Cytokines ; metabolism ; Female ; Humans ; Lymphatic Metastasis ; Male ; Middle Aged ; Nicotinamide Phosphoribosyltransferase ; metabolism ; Prognosis ; Stomach Neoplasms ; metabolism ; pathology ; Survival Rate ; Vascular Endothelial Growth Factor A ; metabolism

This study was purposed to investigate the proliferation and antitumor activity of rhG-CSF-mobilized peripheral blood mononuclear cells (G-PBMNCs) activated by interleukin 21 (IL-21) alone or in combination with interleukin 15 (IL-15)/interleukin 2 (IL-2) and to evaluate the feasibility and value of tumor immunotherapy with cytokine combinations. G-PBMNCs were activated by IL-21 alone or in combination with IL-15/IL-2 in vitro, and the proliferation of the activated G-PBMNCs was analyzed by CCK-8 assay. The cytotoxicity of the activated G-PBMNC to the K562 cells was studied by the test principle which is based on target cell labeling with 5-(6)-carboxy-fluorescein succinimidyl ester (CFSE) and subsequent DNA-labeling with propidium iodide (PI) for identification of target cells with compromised cell membranes. The phenotypes of the activated G-PBMNCs were assayed by flow cytometry. The results showed that the cytotoxicity of IL-21 group had no difference from which of IL-2 group. When G-PBMNCs were exposed to the combinations of IL21+IL15/IL21+IL15+IL2, the cytotoxicity was significantly enhanced at E:T ratio of 25:1, as compared with combination of IL21+IL2 (p<0.05). The cytotoxicity of the cytokines combinations was significantly higher than that in cytokine used alone at E:T ratio of 50:1 (p<0.05). The cryopreservative and resuscitative G-PBMNCs showed the same result with the fresh G-PBMNCs in cytotoxicity test. The proportions of CD3+ and CD8+ T cells were increased when G-PBMNCs were incubated with cytokines for 72 hours. CD4, CD3-56+ and CD3+56+ counts were significantly elevated when G-PBMNCs were exposed to IL21 + IL15 (p<0.05). It is concluded that IL-21 alone enhance the antitumor activity of G-PBMNCs, which further strengthens when IL-21 combinated with IL-15.
Cell Proliferation ; Cells, Cultured ; Drug Synergism ; Granulocyte Colony-Stimulating Factor ; pharmacology ; Hematopoietic Stem Cell Mobilization ; methods ; Humans ; Interleukin-15 ; pharmacology ; Interleukin-2 ; pharmacology ; Interleukins ; pharmacology ; K562 Cells ; Leukocytes, Mononuclear ; cytology ; immunology ; Recombinant Proteins

OBJECTIVETo increase the success rate of surgical treatment in patients with hypospadias.

METHODS220 cases of hypospadias underwent one-stage urethra plasty. After the penis was straightened, urethra plasty was performed with pediculated preputial entoplastron (Duckett's method) in 195 cases; with combination of scrotal septum and pediculated preputial entoplastron in 20 cases; with free bladder mucosa transplantation in 2 cases. The self-made dual silastic tubes with lateral mini-holes were applied to support new urethra in all the cases.

RESULTSThe patients were followed up for 1 - 8 years. 208 cases achieved successful results. There were 2 cases of urethral fistula, 6 cases of urethral stenosis at anastomosis site, 4 cases of stenosis at urethral orifice.

CONCLUSIONSThe success rate (94.5%) suggests great advantages of the self-made dual tube with lateral mini-holes to support new urethra. It can facilitate drainage and irrigation and reduce the complications such as infection, fistula and stenosis.

Child ; Child, Preschool ; Humans ; Hypospadias ; surgery ; Male ; Stents ; Surgery, Plastic ; methods