Objective To explore a new way to improve the repairing effect of tendon allograft by pretreatment with ethyldimethylaminopropyl carbodiimide (EDC) cross-linking. Methods Rabbits' tendon allografts were obtained by lyopyilization.The allografts were then cross-linked and heparinized by EDC and N-hydroxy-succinimide (NHS) respectively.The degradation rate,cytotoxicity and histocompatibility of the cross-linked allografts were detected and compared with those of untreated at different time points.The injured anterior cruciate ligaments (ACL) were repaired by tendon allografts with and without cross-linking pretreatment in rabbits.The tendon-bone healing was observed and compared by light microscopy and scanning electron microscopy (SEM) at 1,3,6 months. Results The degradation rate of the pretreated tendon allografts [(6.26 ± 3.16)％] was significantly lower than that of the unpretreated [(30.70 ± 10.24)％]( t = 14.200,P = 0.025 ).The pretreated tendon allografts were atoxigenic and produced significantly lower inflammatory reaction ( P ＜ 0.05 ).The pretreated tendon allografts also showed more powerful capability of repairing ACL injury and shorter time of tendon-bone healing. Conclusion Tendon allografts cross-linked and heparinized by EDC/NHS may promote tendon-bone healing with improved stability,degradation and biocompatibility.

Objective To summarize our experience in microsurgical treatment of dumbbell tumors. Methods The clinical features,surgical approaches,operative techniques and surgical results of 21 cases of dumbbell tumors were analyzed retrospectively.Four surgical approaches were adopted according to the size and location of tumors,including,posterior midline approach(in 7 cases),modified far lateral approach(in 5 cases),posterior midline supplied by anterior cervical approach(in 2 cases)and paramidline approach(in 7 cases). Results In this series,10 cases of tumors were situated in the cervical,6 in thoracic,4 in lumbar and 1 in sacral segment of the spine.Total removal were achieved in 95% (20/21),and subtotal removal in 5%(1/21).Postoperative pathological diagnosis revealed 15 neurinomas,5 spinal meningiomas and 1 metastatic adenocarcinoma.14 cases of meningiomas and 1 metastatic adenocarcinoma were followed up for 1 to 48 months.11 of the 14 patients recovered completely,with 3 of them living daily life independently,4 maintainly radical hypoesthesia,and one having decubital ulcer unhealed.No postoperative malformation and dysfunction of the disposed spine occurred in these patients.Magnetic resonance imaging scans in 11 of the 14 follow-up cases revealed no tumor recurrence,of which inhanced MRI scans were performed in 8 cases. Conclusions dumbbell tumors should be treated by one-stage operation.Microsurgical technique could improve the rate of total removal,and decrease postoperative complications.

Objective The individualized treatment of breast cancer have attracted more and more attention .Different mo-lecular subtypes of breast cancer have different kinds of prognosis and therapeutic regimen .Studies have found that miR-342-3p is asso-ciated with breast cancer of hormone receptor and endocrine therapy resistance , as well as tumor cell apoptosis .This study was to fur-ther investigate the expressions of miR-342-3p in different breast cancer molecular subtypes and breast cancer cell lines to reveal the importance of miR-342-3p in individualized treatment of breast cancer . Methods A total of 90 tissue samples from patients with breast cancer surgery were collected .Three types of breast cancer cell line were cultured , including MCF-7, SKBr3 and MDA-MB-231.Real-time fluorescent quantitative PCR was applied to detect the expression of miR-342-3p in breast cancer tissue . Results Expression of the miR-342-3p increased the most in Lumina B type breast cancer tissue (1.594 ±0.465), followed by Lumina A type (1.386 ±0.443), Her-2 high expression type (1.165 ±0.337), and the lowest in the tripe negative breast cancer tissue (0.837 ± 0.351), representing significant difference (P<0.05).There was no statistical difference in the expression of the miR-342-3p as to different age groups, lymph node metastasis and tumor size, histological grading and staging (P>0.05).As to the expression of miR-342-3p in three types of breast cancer cell line , taking SKBr3 as the reference, the relative ratio was 126(118-134) and MDA-MB-231 was 0.017(0.014-0.018). Conclusion The expressions of miR-342-3p are different in different molecular subtypes and cell lines of breast cancer , which are relevant to different molecular subtypes of breast cancer , making it possible reference index for breast cancer typing and relevant to good prognosis .

ObjectiveTo investigate the histological features, clinical presentation, treatment and prognosis of small cell carcinoma of the prostate.MethodsThe clinical, pathological and follow-up data of two cases of small cell carcinoma of the prostate were respectively analyzed, and the related literature was reviewed.ResultsTwo cases of small cell carcinoma were diagnosed by transtectal prostate biopsy. Microscopically, the tumor arranged in nest structures and exhibited small round cells with the nuclei extremely hyperchromatic and scanty. Coagulated necrosis was easily observed. The immunohistochemical testing was positive for NSE and negative for PSA 、PAP. Case 1 received palliative surgery and postoperative chemotherapy of EP (VP-16, Cisplatin), and died of recurrence and distant metastasis after six months. Case 2 received palliative surgery and oral bicalutamide treatment, and died of recurrence and liver metastasis after three months.ConclusionsSmall cell carcinoma of the prostate has the biological behavior of invasive growth with an unfavorable prognosis, which is often in an advanced stage at first diagnosis. The ultimate diagnosis depends on histopathology and surgery combined with systemic chemotherapy and radiotherapy is the most effective treatment.

Objective To observe the effects of Three-in-one Acupuncture on hemiplegia after ischemic stroke. Methods 146 patients with hemiplegia after ischemic stroke were randomly allocated into trial group (n=73) and control group (n=73). The trial group accepted Three-in-one Acupuncture, while the control group accepted rehabilitation, for 4 weeks. They were assessed with Neurological Deficit Score (NDS), Functional Comprehensive Assessment (FCA) and Barthel Index (BI) before and 7, 14, 21 and 28 days after treatment. They were followed up for a year. Results The NDS decreased since 7 days after treatment in the trial group (P<0.05), while it decreased since 21 days in the control group (P<0.05). The NDS was less in the trial group than in the control group 7 and 14 days after treatment (P<0.05). The FCA score increased since 21 days after treatment in both groups, and the BI score increased since 14 days after treatment in both groups (P< 0.05). There was no significant difference between the trial group and the control group (P>0.05). The rate of improvement was 87.9% in the trial group, similar with 84.1% in the control group (P>0.05). The recurrence rate was 11.54% in the trial group, less than 25.49% in the control group in a year (P<0.05). Conclusion Three-in-one Acupuncture is as effective as rehabilitation on hemiplegia after ischemic stroke, more quickly and with less recurrence.

Objective To explore the effects of minimally invasive removal of intracranial hematoma on blood-brain barrier (BBB) index, serum myelin basic protein (MBP) and activity of daily living (ADL) in hypertensive patients with cerebral hemorrhage.Methods Through observing 30cases operated within 3.0 hours, 32 case operated between 3. 1-8. 0 hours, 28 cases operated between 8. 1 to 24.0 hours and 22 cases operated over 24 hours, the changes of BBB index, serum MBP and ADL were analyzed. Results The BBB index and serum MBP were significantly lower in patients operated within 8. 0 hours than in patients operated over 8. 1 hours [≤3.0 hours group:(6.57±0.69)×10-3 and (3. 12±0.40)μg/L;3. 1-8.0 hours group: (7. 37±1.29)×10-3 and (3.25±0.60)μg/L;8. 1-2.0 hours group: ( 12. 02± 1.51 ) × 10 3 and (4. 60±0. 48)μg/L;over 24.0 hours group: ( 14. 68±2.07)×10-3 and (5.88±0.64)μg/L,Q＞13.8,P＜0. 05]. And the ADL was lower in patients operated within 8. 0 hours than in patients operated over 8. 1 hours [≤3.0 hours group: (2. 60± 1.07)scores; 3.1-8.0 hours group: (3. 06±0. 91 )scores;8. 1-24.0 hours group: (4.00±0.67) scores;over 24.0 hours group:(3.68±1.32)scores,Q＞3. 1,P＜0.05].Conclusions The minimally invasive surgery of intracranial hematoma within 8.0 hours can mitigate the cytotoxicity-damaged BBB so as to lighten brain edema and improve the patients quality of life.

Objective To investigate the risk factors for castrate-resistant prostate cancer (CRPC) after prostate cancer treated with androgen deprivation therapy (ADT) within 1 year.Methods One hundred and thirty-one prostate cancer patients treated with ADT in our institute between Jan.2008 and Jan.2011 were selected for this study.Patients were followed up by telephone or in clinic,including serum testosterone,serum PSA,clinical symptoms,imaging studies,digital rectal examination (DRE),survival data,PSA nadir,time to PSA nadir and et al.We mainly studied the CRPC after prostate cancer treated with ADT within 1 year.In the 131 patients,the median age was 70 (ranged from 44-89) years.There were 13 patients (9.9％) less than 60 years,43 patients (32.8％) between 60 and 69 years,62 patients (47.3％) between 70 and 79 years,13 patients (9.9％) more than 80 years.The average body mass index (BMI) was 23.0 (ranged from 14.4-34.4) kg/m2.There were 10 patients less than 18.5 kg/m2,77 patients between 18.5 and 24.0 kg/m2,34 patients between 24.1 and 28.0 kg/m2,and 10 patients more than 28.0 kg/m2.The initial PSA was between 0.3 and 4 707.0 μg/L,there were 19 patients (14.5％) less than 20 μg/L,45 patients (34.4％) between 20 and 99 μg/L,67 patients (51.1％) more than 100 μg/L.One patient (0.7％) was in T1,39 patients (29.8％) in T2,59 patients (45.0％) in T3,32 patients (24.4％) in T4.5 patients (3.8％) were with Gleason score 4,13 patients (9.9％) were with Gleason score 5,24 patients (18.3％) were with Gleason score 6,51 patients (38.9％) were with Gleason score 7,26 patients (19.8％) were with Gleason score 8,9 patients (6.9％) were with Gleason score 9,3 patients (2.3％) were with Gleason score 10.Results There were 32 of 131 patients (24.4％) progressed to CRPC after treated with ADT within 1 year.In the CRPC group,there were 3 patients less than 60 years,15 patients between 60 and 69 years,12 patients between 70 and 79 years,2 patients more than 79 years; 3 patients were less than 18.5 kg/m2,19 patients were between 18.5 and 24.0 kg/m2,7 patients were between 24.0 and 28.0 kg/m2,3 patients were more than 28.0 kg/m2 ; 4 patients were less than 20 μg/L,6 patients were between 20 and 100 μg/L,22 patients were more than 100 μg/L; 4 patients were in T2,13 patients were in T3,15 patients were in T4; 2 patients were with Gleason score 6,11 patients were with Gleason score 7,11 patients were with Gleason score 8,6 patients were with Gleason score 9,2 patients were with Gleason score 10; 29 patients were with metastasis,3 patients without metastasis.Clinical stage (P =0.001),Gleason score (P＜0.001) and metastasis (P=0.011) were statistically significant between the CRPC within 1 year group and the rest group.Conclusions The clinical stage and Gleason score are the risk factors of CRPC treated with ADT within 1 year.The higher of the clinical stage and Gleason score,the greater risk to be the CRPC within 1 year.

Laparoscopic curative gastrectomy has been widely adopted because it is minimal invasiveness.The efficacy of laparoscopic gastrectomy is comparable to that of open gastrectomy for patients with early or advanced gastric cancer,but few studies of laparoscopic total gastrectomy combined with distal pancreatectomy and splenectomy for patients with advanced gastric cancer have been reported.Seven patients with advanced gastric cancer received laparoscopic total gastrectomy combined with distal pancreatectomy and splenectomy at the First Hospital of Jilin University from September 2010 to September 2011.The mean operation time,blood loss,postoperative hospital stay and the nunber of lymph nodes resected were (218 ± 24) minutes,(366 ± 174) ml,( 14.6 ± 2.8 ) days and 32 ± 15,respectively.Two patients were complicated by pancreatic juice leakage and were cured with drainage. No anastomotic leakage,abdominal bleeding or mortality was observed. With the development of techniques and equipments,laparoscopic total gastrectony combined with distal pancreatectomy and splenectomy is safe and feasible in selected patients.

Objective To screen out the biomarkers with diagnostic value in lung cancer by biochip technology. Methods We screened four pairs of differentially-expressed circRNAs in lung cancer by circRNA expression profiling chip, and then verified the screened differential circRNA hsa_circ_0044569 by qRT-PCR, and collected clinical case information of patients at the same time. The independent sample t test and ROC curve were used to analyze the relation between the clinical data of lung cancer patients and the expression of circRNA hsa_circ_0044569 on clinical samples. Results The expression level of hsa_circ_0044569 in lung cancer tissues was higher than that of its paired adjacent tissues. The cutoff value of hsa_circ_0044569 for the diagnosis of lung cancer was 9.62, AUC was 0.758, P < 0.05, sensitivity was 0.712, and specificity was 0.712. The expression of hsa_circ_0044569 was significantly related with the pathological type of lung cancer patients (P < 0.05). Conclusion hsa_circ_0044569 is highly expressed in lung cancer and related to the pathological type, suggesting that it may become a potential biomarker in the early diagnosis of lung cancer.

Objective: To investigate the clinicopathological features, treatment and prognosis of duodenal-type follicular lymphoma. Methods: Four cases of duodenal-type follicular lymphoma diagnosed at Guangdong General Hospital from 2014 to 2015 with detailed clinical data were included. The histomorphology, immunophenotype, treatment and prognoses were analyzed. Results: The patients′ age ranged from 51 to 57 years (mean 54 years), and there were 2 males and 2 females. The involved sites were gastric fundus in one case, second portion of the duodenum in two cases and terminal ileum in one case. All patients presented with multiple mucosal granules or nodules at endoscopy. Microscopically, there were multiple mucosal neoplastic follicles, constituting grade 1-2 disease based on nodal follicular lymphoma grading system. The tumor cells were positive for CD20, CD10, bcl-6 and bcl-2. CD21 highlighted the follicular dendritic meshwork mainly at the periphery of the follicles. Proliferation index was low. Three patients received rituximab monotherapy for 4 cycles, leading to complete remission. One patient refused therapy and the disease progressed to systemic lymphoma 15 months after the initial diagnosis. Conclusions Duodenal-type follicular lymphoma is a special variant of follicular lymphoma with indolent clinical course. The tumor exhibits morphology of low grade follicular lymphoma with characteristic dendritic meshwork at the periphery of the follicles and a low proliferation index. Prognosis is excellent. Rituximab monotherapy is treatment of choice, but a small minority of patients may progress to systemic disease.