Base Sequence ; DNA, Neoplasm ; genetics ; DNA-Binding Proteins ; metabolism ; Gene Rearrangement, B-Lymphocyte, Heavy Chain ; Genes, Immunoglobulin Heavy Chain ; Humans ; Immunoglobulin Heavy Chains ; genetics ; Interferon Regulatory Factors ; metabolism ; Lymphoma, Large B-Cell, Diffuse ; genetics ; metabolism ; Molecular Sequence Data ; Neprilysin ; metabolism ; Proto-Oncogene Proteins c-bcl-6

Objective: To explore the revision strategy of the malunited tibial plateau fracture and to analysis the main points of four common revision operations and the clinical effect. Methods: From January 2012 to December 2016, 18 patients (5 males and 13 females) aged 35-60 years (average 49.7 years) underwent tibial plateau revision surgery in our hospital were collected. The time from the second revision operation to the first operation was 2-24 months (average 10.4 months). Our revision strategies were as follows: Firstly, to determine whether there is an infection or not. If there was infection, we changed the original internal fixation to external fixator to control infection. Secondly, todetermine whether the patient could suffer re-reduction and internal fixation. If the patient was older (>65 years old) or with severe local bone defect, total knee arthroplasty should be performed. Thirdly, patients were divided into four operation modes according to the tibial plateau fracture malunion type: 1. the original fracture line osteotomy; 2. the tibial tubercle + original fracture line osteotomy; 3. tibial metaphyseal window-rod reduction; 4. the osteotomy of fibula head and original fracture line osteotomy. Results: All patients were followed up for 12-30 months (average 16.8 months), and the operation time was 120-300 min (average 185 min). 2 cases were infected before operation and the original internal fixation were removed to instead of external fixator;1 patient underwent total knee arthroplasty; 3 cases were treated with metaphyseal open window-rod reduction and internal fixation; 6 cases were operated with the original fracture line osteotomy and internal fixation; 4 cases were treated with tibial tubercle osteotomy+original fracture line osteotomy and internal fixation; 2 patients underwent fibular head osteotomy+ original fracture line osteotomy and internal fixation. All patients achieved bony union at the last follow-up. The healing time was 3-6 months (mean 3.6 months). The postoperative knee Rasmussen score was 19-29 (average 22.9), compared with average 14.4 points before operation (t=-10.169, P=0.001). The postoperative range of motion of knee joint was 60-110 degrees (mean 94.5 degrees), compared with average 55 degrees before operation (t=-5.773, P=0.001). The post-operative VAS pain score was average 1.1 points, compared with average 4.2 points before operation (t=8.960, P=0.001). Fracture reduction was excellent in 12 cases and good in 5 cases, with the excellent and good rate of 100%. 3 patients still had 2mm collapse on the articular surface, while 3 patients still had mild valgus (less than 5 degrees). There were 2 cases of superficial infection of the wound surface after operation. Conclusion It was difficult to revise the malunion of tibial plateau fracture and it was necessary to make a detailed operation plan before the operation. Satisfactory clinical effects could be obtained for the patients by correct revision strategy. The key to success was the proper revision strategy which was adopted according to the different characteristics of the tibial plateau fracture malunion of the patients.

OBJECTIVETo explore the Mechanism of nonablative skin rejuvenation.

METHODThe Kunming mice be used as subjects and divided into three groups (A, B, C). A, B, C groups were irradiated with 1 320 nm cooltouch laser (20 J/cm2) in the skin of left back; B and C groups were irradiated two and three times respectively; the skin of right back of A, B, C groups was adopted as control. The expression of bFGF and TGF-beta1 in the mouse skin was examined by the immunohistochemistry . The fibroblasts were isolated from the foreskin and cultured. One group is a control and other three ones are low, intermediate and high energetic groups respectively. The fibroblasts were irradiated by laser with 15 J/cm2 ,20 J/cm2 and 24 J/cm2 energy for three times. We examined the levels of bFGF and TGF-beta1 by ELISA in 0, 24, 48 and 72 hours.

RESULTSAccording to this research on immunohistochemistry result, there are significant differences in the expression of bFGF and TGF-beta1 between the group irradiated by three times and others (P < 0.01). The number of fibroblasts get increased after being irradiated by laser. The ELISA result indicates that the secretion of bFGF increased in the group of intermediate and high energetic level after laser irradiating and may reach the peak at 24 hours (P < 0.01). The amount of TGF-beta1 secretion, however, seems to get decreased in each group at all energetic levels, and at 24 hours it can reach the top level as well.

CONCLUSIONThe direct influence of laser on the fibroblasts is to promote secretion of bFGF and to inhibit secretion of TGF-beta1, while its influence on the tissue is to promote the secretions of the both. Nonablative skin rejuvenation not only can induce fibroblasts to secrete more bFGF but also induce the blood vessels to release cytokines which stimulate endothelial cell to express more of bFGF and TGF-beta1. Furthermore, fibroblastic proliferation can accelerate by laser's irradiating.

Animals ; Cells, Cultured ; Cosmetic Techniques ; Female ; Fibroblast Growth Factor 2 ; metabolism ; Fibroblasts ; cytology ; radiation effects ; secretion ; Laser Therapy ; Mice ; Mice, Inbred Strains ; Rejuvenation ; Skin ; cytology ; radiation effects ; Transforming Growth Factor beta1 ; metabolism

Objective To explore the clinical outcome of improved technique of Gamma nail in the treatment of intertrochanteric hip fracture of the elderly patients. Methods From March 2002 to October 2006.39 patients with intertrochanteric hip fracture were operated by improved technique of Gam-ma nail.There were 18 males and 21 females at average age of75.7 years(67_98 years).There were 6 patients with type A1 fracture,24 with type A2 fracture and 9 with type A3 fracture according to AO/ASIF classification.Of all.36 patients(92.3%)had osteoporosis.The operation improvements included the following points:(1)The patients were placed at the lateral decubitus position with the fractured limb on the uppermost,with flexion of knee and hip of 60°.The normal hip and knee were flexed as possible.(2)One-off indirect traction reduction was used after general anesthesia. no requirement of continuous mechanical traction.(3)C-arm image intensifier was employed to obtain normal and lateral projections.Results Of all,35 patients were followed up for a mean period of3 years and 2 months, ranging from 6 months to 5 years and 2 months.Operation data showed incision length of(4.3±1.2)cm,mean opera-tion time of(46±10)minutes,intraoperative bleeding volume of(65±26)ml and intraoperative X-ray exposure of(3.0±2.1)times.Postoperative recovery data showed survival in one-year follow up,with ambulation time of(10.5±3.6)days and fracture union time of(10.9±2.1)weeks.Mean Parker's score wag(6.9±3.2)points 6 months after operation. Conclusions Improved technique of Gamma nail can shorten operation duration,reduce operative trauma and bleeding,reduce X-ray exposure and im-prove success rate of surgery.as facilitates early pest-operative recovery and reduces the perioperative mortality rate of the elderly.

Objective To prepare hepatocyte growth factor(HGF) recombinant protein and confirm its activity preliminarily according to building HGF gene prokaryotic expression vector and transforming into E.coli.Methods Clone HGF inserted into the vector pET-26b(+) to construct prokaryotic expression vector pET-26b(+)-HGF and transform into E.coli Rosseta(DE3).The transformed bacteria induced by IPTG was purified through Ni-NTA resin affinity chromatography frozen-drying after renaturation.Results HGF gene recombinant prokaryotic expression vector pET-26b(+)-HGF was constructed successfully.E.coli Rosseta(DE3) which was transformed into pET-26b(+)-HGF expresses the target protein as the form of inclusion bodies,accounting for 38％ of the total bacterial proteins,and confirmed by Western blot.HGF protein which was purified by Ni-NTA resin affinity chromatography,has a purity of about 95％,and can promote proliferation,migration,and inhibition of apoptosis for human non-small cell lung cancer cell line A549 cells after interaction.Conclusion HGF gene recombinant prokaryotic expression vector pET-26b (+)-HGF was constructed and expressed in transformed E.coli Rosseta(DE3) successfully.They resumed their recombinant HGF protein structure after purification and renaturation,and had biological activity confirmed by in vitro studies.

ObjectiveTo investigate the clinical features, diagnosis, treatment, and prognosis of autoimmune pancreatitis (AIP) alone versus AIP with IgG4 sclerosing cholangitis (IgG4-SC). MethodsA retrospective analysis was performed for the clinical data of 40 patients with type 1 AIP who were admitted to The First Affiliated Hospital of Zhengzhou University from June 2015 to January 2020, among whom 29 patients had AIP alone and 11 had AIP with IgG4-SC. The two groups were compared in terms of clinical manifestations, laboratory examination, imaging findings, treatment, and prognosis. The t-test was used for comparison of normally distributed continuous data between two groups, and the Mann-Whitney U test was used for comparison of non-normally distributed continuous data between two groups; the Fisher’s exact test was used for comparison of categorical data between two groups. The Kaplan-Meier method was used to calculate recurrence rate and plot recurrence curve, and the log-rank test was used for univariate analysis. ResultsCompared with the AIP group, the AIP+IgG4-SC group had significantly higher number of affected organs ［3.0(3.0-4.0) vs 3.0(1.5-3.5), Z=-2.172, P=0035］ and response index before treatment ［12.0(12.0-15.0) vs 12.0(9.0-13.5), Z=-2.157, P=0.032］. The AIP+IgG4-SC group had a significantly higher median serum IgG level than the AIP group ［21.0(15.8-23.7) g/L vs 14.8(13.3-15.7) g/L, Z=-2.711, P=0.004］. During the median follow-up time of 15.8 (6.5-31.3) months, the AIP+IgG4-SC group had a significantly higher recurrence rate than the AIP group (χ2=8.155, P=0.004). ConclusionPatients with AIP and IgG4-SC tend to have higher serum IgG4 level, number of affected organs, and recurrence rate than those with AIP alone. Early identification, diagnosis, and treatment can reduce the recurrence rate of AIP.

OBJECTIVE: To identify possible risk factors for cerebral palsy (CP) in children. METHODS: A Population-based survey was conducted (including 92 CP cases) in 66 townships of 15 cities of Zhejiang Province from October to November, 1998. 184 of matched controls were selected for comparison. RESULTS: Factors identified which were statistically significant for risk of subsequent childhood Cerebral Palsy included some neonatal diseases, some maternal diseases, low birth weight (<2500 g), maternal irregular menstruation, toxic, substances during pregnancy, malnutrition during pregnancy,and paternal age. CONCLUSION: Several risk factors for Cerebral Palsy were identified. Their prevention may result in redduction of the incidence of Cerebral Palsy.

Diabetic nephropathy (DN) is one of the major microvascular complications in diabetic patients, and it is also the main global cause of chronic kidney disease(CKD) and end-stage renal disease(ESRD). Albuminuria and estimated glomerular filtration rate (eGFR) are currently recognized as clinically diagnosed early DN, but their sensitivity and specificity are poor. Therefore, it is very important to find new biomarkers to reflect the potential diabetic nephropathy in the clinical silent period.

OBJECTIVETo study the clinicopathological characteristics of primary Non-Hodgkin's Lymphoma (NHL) of the prostate.

METHODSTwo cases of primary NHL of the prostate were studied by analyzing the clinical data, pathological features, prognosis and review of the literature.

RESULTSHE showed that the normal prostatic tissues were replaced by diffuse-type cancer tissues composed of oval or round medium- to large- size lymphoid cells, with vesicular nuclei, fine chromatin, 2-4 membrane-bound nucleoli and scanty cytoplasm, with either amphophilic or basophilic. Immunohistochemistry revealed: CD20 +, CD79a +, CD10 -, CD5 -, CD3 - and CD45 - in Case 1 and CD20+ + +, PSA +/-, CKpan -, Syn -, CgA -, 34betaE12 -, P504S - and CD3 - in Case 2. Case 1 received chemotherapy combined with radiotherapy, relapsed 4 years later and stabilized by repeated chemotherapy. Case 2 experienced no recurrence after treated by chemotherapy.

CONCLUSIONSurgical treatment could be avoided by preoperative pathological diagnosis of primary NHL of the prostate, for which combined chemotherapy should be the first preference.

Aged ; Antigens, CD20 ; analysis ; Follow-Up Studies ; Humans ; Immunohistochemistry ; Lymphoma, Non-Hodgkin ; drug therapy ; metabolism ; pathology ; Male ; Middle Aged ; Prognosis ; Prostatic Neoplasms ; drug therapy ; metabolism ; pathology

OBJECTIVETo assess the clinical value of (18)F-FDGPET/CT in the diagnosis of larynx carcinoma. Methods Forty-seven patients with larynx carcinoma or suspected larynx carcinoma underwent (18)F-FDG PET/CT examination within a week before therapy. The value of (18)F-FDG PET/CT in the diagnosis and staging of the malignancy was compared with that of unenhanced contrast CT.

METHODSForty-seven patients with larynx carcinoma or suspected larynx carcinoma underwent (18)F-FDG PET/CT examination within a week before therapy. The value of (18)F-FDG PET/CT in the diagnosis and staging of the malignancy was compared with that of unenhanced contrast CT.

RESULTSAmong the 47 patients, a definite diagnosis of larynx carcinomas was established pathologically in 43 patients. For detection of primary tumors, the sensitivity, specificity and accuracy of (18)F-FDG PET/CT were 95.3%, 75% and 93.6%, as compared with 74.4%, 50%, and 72.3% with unenhanced contrast CT scan, respectively, showing significant differences in the diagnostic sensitivity and accuracy between the two modalities (Χ=7.340, P=0.007; Χ=7.532, P=0.006). Twenty-six of the 43 patients were identified to have lymph node metastasis, for which (18)F-FDG PET/CT showed a significantly higher diagnostic sensitivity than unenhanced contrast CT (92.3% vs 61.5%, Χ=6.933, P=0.008). In the 46 excised lymph nodes from 19 patients, 26 were found positive for metastasis, for which (18)F-FDG PET/CT showed a diagnostic sensitivity of 92%, significant higher than that with unenhanced contrast CT (64%, Χ=5.71, P=0.017). PET/CT detected synchronous tumor in one case. (18)F-FDG PET/CT resulted in a change of staging in 34.9% of the patients, including upstaging in 14 patients and down-staging in one patient.

CONCLUSION(18)F-FDG PET/CT can be an important means for diagnosis and initial staging of larynx carcinoma.

Adult ; Aged ; Carcinoma ; diagnostic imaging ; Female ; Fluorodeoxyglucose F18 ; Humans ; Laryngeal Neoplasms ; diagnostic imaging ; Middle Aged ; Multimodal Imaging ; methods ; Positron-Emission Tomography ; Tomography, X-Ray Computed