Adenocarcinoma, Mucinous ; metabolism ; pathology ; surgery ; Aged ; Biomarkers, Tumor ; metabolism ; Carcinoembryonic Antigen ; metabolism ; Carcinoma, Pancreatic Ductal ; metabolism ; pathology ; surgery ; Carcinoma, Papillary ; metabolism ; pathology ; surgery ; Cystadenocarcinoma, Mucinous ; metabolism ; pathology ; surgery ; Diagnosis, Differential ; Duodenal Neoplasms ; metabolism ; pathology ; surgery ; Female ; Follow-Up Studies ; Humans ; Immunohistochemistry ; Male ; Middle Aged ; Mucin-2 ; Mucins ; metabolism ; Neoplasm Invasiveness ; Pancreatic Neoplasms ; metabolism ; pathology ; surgery ; Pancreaticoduodenectomy

Objective To study the effect of different prostaglandin E2 (PGE2) combined with tumor necrosis factor-?(TNF-?) to the IP3-Ca2+ pathway mediated by membrane TNF-?R of fibroblasts. Methods The lung fibroblasts of breed mouse were primarily cultured. 10 ?g/L TNF-? and 10 ?g/L TNF-? combined with PGE2 of different doses were added to culture medium of fibroblasts. At some observation time,the expression of TNF-?R on the cellular membrane of fibroblasts was detected by the method of immunohistochemistry,the level of IP3 in cells was detected by the method of radioimmunoassay and the contents of Ca2+ in fibroblasts by the method of flow cytometry. Results With doses of PGE2 increasing at 30 s time point and 60 s time point,the cpm value of IP3 of fibroblast decreased gradually. The cpm value of IP3 significantly increased when the dose of PGE2 was 1.0 ?g/L,but obviously lower when the dose of PGE2 was 2.0 ?g/L at 120 s time point. The expression of TNF-?R and the contents of Ca2+ decreased in a dose-dependent way with the dose of PGE2 increasing. Conclusion Certain dose of PGE2 could suppress the effect that TNF-? enhance the cell proliferation of fibroblast by the IP3-Ca2+ pathway mediated by membrane TNF-?R of fibroblasts.

OBJECTIVETo explore the clinical effects of Dynesys system for the treatment of multiple segment lumbar degenerative disease.

METHODSA total of 28 patients with lumbar degenerative disc disease treated with Dynesys system from December 2008 to May 2011 were retrospectively reviewed. There were 16 males and 12 females, aged from 27 to 75 years old with an average of 49.1 years. Thirteen patients with multiple segmental lumbar intervertebral disc protrusion, including L3-L5 in 7 cases, L2-L4 in 1 case and L4-S1 in 5 cases. Fifteen patients with multiple segmental lumbar spinal stenosis, including L3-L5 in 10 cases, L4-L5 in 4 cases and L2-S1 in 1 case. The symptoms of lumbago and (or) intermittent claudication in all patients were treated with conservative treatments for more than 6 months and these methods did not work. Visual analogue scale (VAS) was used to analyze the lumbar and leg pain, imaging data were used to measure the intervertebral space height and intervertebral motion of fixed segment and upper adjacent segment, Oswestry Disability Index (ODI) was used to evaluate the clinical effect.

RESULTSAll operations were successful and the patients were followed up from 38 to 65 months with an average 50.6 months. At final follow-up, ODI and VAS of the low back pain and leg pain were (25.10±6.52)%, (1.25±0.70) points and (1.29±0.89) points, respectively and were decreased compared with preoperative (P<0.05). Postoperative intervertebral space heights were increased and intervertebral motions were decreased in fixed segment compared with preoperative (P<0.05). There were no significant differences in intervertebral space heights and intervertebral motions of upper adjacent segment between preoperative and postoperative (P>0.05).

CONCLUSIONDynesys system may obtain long-term clinical curative effect in treating multiple lumbar degenerative disease. It can partially preserve the intervertebral motions of the fixed segments, have little effect on adjacent segments. The long-term clinical effect of Dynesys still need longer time follow-up observation.

Adult ; Aged ; Female ; Follow-Up Studies ; Humans ; Intervertebral Disc Degeneration ; pathology ; surgery ; Joint Instability ; Lumbar Vertebrae ; Magnetic Resonance Imaging ; Male ; Middle Aged ; Visual Analog Scale

Acute Disease ; Adolescent ; Adult ; Bridged-Ring Compounds ; poisoning ; Female ; Humans ; Male ; Middle Aged ; Poisoning ; therapy ; Treatment Outcome

Adolescent ; Child ; Cleft Palate ; pathology ; Eustachian Tube ; anatomy & histology ; pathology ; Female ; Humans ; Male ; Nasopharynx ; anatomy & histology ; pathology ; Young Adult

Objective To evaluate quantitative parameters of contrast-enhanced transrectal ultrasonography for differential diagnosis of prostate nodules in peripheral zone.Methods Forty-seven patients suspected of prostate cancer for peripheral zone nodules on ultrasonographic imaging were enrolled in this study.Time intensity curves of contrast-enhanced ultrasound were analyzed in all patients.Results The full-width at half maximum (FWHM) of malignant lesions in peripheral zone was shorter than that of adjacent peripheral zone (47.1 s±21.1 s vs 74.2 s±29.7 s, P=0.01).The peak intensity (PI) of benign nodules in peripheral zone was lower than that of adjacent peripheral zone 11.9 dB±7.7 dB vs 17.5 dB±4.5 dB, P=0.02).Conclusions It is helpful for differentiation diagnosis of peripheral zone nodule through analyzing FWHM and PI on contrast-enhanced transrectal ultmsonography imaging.

OBJECTIVETo study the efficiency of decreasing instability of large femoral head components in revision total hip arthroplasty (THA).

METHODSFrom August 2005 to December 2010, 107 patients (112 hips) with 28 mm femoral head components (28 mm group) and 46 patients (46 hips) with 36 mm femoral head components (36 mm group) in revision THA were analyzed retrospectively in order to find if the dislocation rate and Harris hip score were different between the two groups at the time of last follow-up. All the operations were performed by the first author. There were 81 male patients (85 hips) and 26 female patients (27 hips) in 28 mm group with mean age of (62±17) years (26-79 years) and 33 male patients (33 hips) and 13 female patients (13 hips) in 36 mm group with mean age of (60±16) years (31-77 years).

RESULTSThe mean follow-up period was 43.3 months (33-71 months) for 28 mm group and 26.7 months (12-37 months) for 36 mm group. There were 7 patients dislocated after revision in 28 mm group, including 2 revised with reinforcement rings (with dislocation rate 9.5%), 3 revised with impaction bone grafting technique (with dislocation rate 8.3%) and 2 revised with cementless cups (with a dislocation rate 3.6%). The dislocation rate of this group was 6.2%. While the dislocation rate of 36 mm group was 2.2%, the only dislocated patient was because of loss of gluteus medius muscle function in the index operation. If this case was excluded, the dislocation rate of 36 mm group would be 0. There was significant difference between the two groups (χ2=103.0095, P<0.01). The Harris hip score was 88±11 for 28 mm group and 89±9 for 36 mm group, there was no significant difference between the two groups (P>0.05).

CONCLUSIONThe large femoral head components can significantly decrease the instability after revision THA, which should be used in revision THA.

Adult ; Aged ; Arthroplasty, Replacement, Hip ; instrumentation ; Female ; Follow-Up Studies ; Hip Prosthesis ; Humans ; Male ; Middle Aged ; Prosthesis Failure ; Retrospective Studies

OBJECTIVETo compare the difference of anterior knee pain after total knee arthroplasty (TKA) between the ways using periosteal dissector and electric scalpel to release medial collateral ligament and pes anserinus.

METHODSFrom September 2009 to September 2012, 220 patients with unilateral osteoarthritis were treated with primary TKA in hospital 301. All the patients were randomly divided into periosteal dissector group (110 cases) or electric scalpel group (110 cases). In the periosteal dissector group, there were 47 males and 63 females,with an average age of (58.8 +/- 17.2) years old; the degree of genuavarus was (14.0 +/- 3.5) degrees; the weight was (65.6 +/- 12.8) kg; the body mass index (BMI) was (26.6 +/- 3.6) kg/m2. In the electric scalpel group,there were 49 males and 61 females,with an average age of (59.6 +/- 16.7) years old;the degree of genuavarus was (15.0 +/- 4.7) degrees; the weight was (66.4 +/- 13.4) kg; the BMI was (27.4 +/- 4.1) kg/m2. The mean follow-up period was 24.6 months. The AKS, VAS and HSS were used to evaluate clinical results.

RESULTSAll incisions healed at the first stage;no deep vein thrombosis of lower limbs or pulmonary embolism occurred. Knee infection occurred in 3 cases (1 in the periosteal dissector group and 2 in the electric scalpel group), and the 3 patients received stage 2 total knee revision using antibiotic bone cement and TC3 prosthesis. No recurrence of infection occurred during follow-up. Among the 20 patients who had anterior knee pain, 16 patients were in the periosteal dissector group and 4 patients were in the electric scalpel group. The occurrence rate of anterior knee pain in the electric scalpel group was lower than that in the periosteal dissector group. The AKS knee score and HSS score after total knee arthroplasty in the electric scalpel group were all higher than those in the periosteal dissector group, and the VAS in electric scalpel group was lower than that of periosteal dossector group.

CONCLUSIONCompared with using electric scalpel,using periosteal dissector used to release medial collateral ligament and pes anserinus may cause more anterior knee pain after total knee arthroplasty.

Adult ; Aged ; Arthroplasty, Replacement, Knee ; adverse effects ; Case-Control Studies ; Female ; Humans ; Knee Joint ; surgery ; Male ; Middle Aged ; Pain, Postoperative ; etiology ; Tibia ; pathology ; Treatment Outcome ; Young Adult

Adenocarcinoma ; genetics ; Adult ; Age Factors ; Aged ; Base Sequence ; Carcinoma, Squamous Cell ; genetics ; DNA, Mitochondrial ; genetics ; Female ; Humans ; Lung Neoplasms ; genetics ; Male ; Middle Aged ; Sequence Deletion ; Smoking ; genetics

OBJECTIVETo evaluate the clinical effects of dynamic neutralization system (K-Rod) in treating multisegmental lumbar degenerative disease.

METHODSFrom October 2011 to October 2013, 20 patients with multisegmental lumbar degenerative disease were treated with dynamic neutralization system (K-Rod). There were 8 males and 12 females with an average age of 45.4 years old (ranged from 31 to 65) and an average course of 3.8 years (ranged from 9 months to 6.25 years). All patients had the history of low back and legs pain. Among them, 10 cases were far lateral lumbar disc herniation, 7 cases were lumbar spinal stenosis, 3 cases were lumbar spondylolisthesis (degree I in 2 cases and degree II in 1 case). Every patient had only one responsible segment which causing the symptom would have to be rigidly fixed during operations, and the adjacent intervertebral disc of the responsible segments at least 1 segment has already obvious degenerated. All patients underwent the operation to relieve compressed nerves and reconstruct spinal stability with K-Rod system (the responsible segments were fixed with interbody fusion, and the adjacent segments were fixed with dynamic stabilization). Visual analogue scale (VAS), Japanese Orthopaedic Association Scores (JOA) and Oswestry Disability Index (ODI) were used to evaluate the clinical effects. Imaging data were used to analyze the range of motion (ROM), intervertebral disc height and intervertebral disc signal (according to modified Pfirrmann grading system) in degenerative adjacent segment.

RESULTSAll patients were followed up for more than 1 year, and preoperative symptoms obviously relieved. There were significant differences in VAS, JOA, ODI between preoperative and postoperative (postoperative at 1 week and 1 year) (P<0.05). Radiological examination showed that all responsible segments had already fused, and no looseness, displacement and breakage of internal fixations were found. Postoperative at 1 year, the ROM of adjacent segments were decreased (P<0.05). There was no significant difference in intervertebral disc height between preoperative and postoperative at 1 year (P>0.05). According to modified Pfirrmann grading system to classification for the 25 disks of adjacent segment, 8 disks (32%) got improvement, 15 disks (60%) got no change and 2 disks (8%) got aggravation at 1 year after operation.

CONCLUSIONDynamic neutralization system (K-Rod) combined with interbody fusion could obtain short-term clinical effects in the treatment of multisegmental lumbar degenerative disease.

Adult ; Aged ; Female ; Humans ; Intervertebral Disc Displacement ; surgery ; Lumbar Vertebrae ; surgery ; Male ; Middle Aged ; Range of Motion, Articular ; Spinal Diseases ; surgery ; Spinal Fusion ; methods ; Spinal Stenosis ; surgery ; Spondylolisthesis ; surgery