Objective To compare direct magnetic resonance(MR)arthrography with arthroscopy of the wrist for evaluation of injury in the triangular fibrocartilage complex(TFCC).Methods Fourteen cases with suspicion of injury of triangular fibrocartilage complex were performed with conventional MR and direct MR arthrography,10 cases were done by arthroscopy.In the direct MR arthrography,needle placement was obtained using clinical landmark under sterile technique and fluoroscopy,intra-articular injection was performed at the radius-scaphoid space with 5-7 ml 0.3%mixture of Gadolinium (0.1 mmol/L)and saline(0.3 ml Gd-DTPA+100 ml saline).The findings of MRI and MR arthrography were analyzed with results of arthroscopy.Resuits (1)Among 14 cases with injury of TFCC,there were ulnar tear in 5cases,radius tear in 4 cases,complete tear in 5 cases(included 2 cases with long term rheumatoid).(2)High signal intensity and isointensity signal of injury of TFCC were revealed on STIR or T2 WI and T1 WIrespectively,normal hypointensity signal of the TFCC was partially or completely absent.Contrast media at the ulnar insertion(5 cases with ulnar tear)or radius attachment of the TFCC(4 cases with radius tear)were seen in the MR arthrography with difierent extent,5 cases with complete tear showed contrast media at the both ulnar insertion and radius attachment of the TFCC.The findings of MR arthrography were well corresponded with results of arthroscopy on the lesion site,including ulnar tear in 3 cases,radius tear in 4cases and complete tear in 3 cases.(3)Among 14 cases with TFCC,8 cases had dislocation of radius-ulnar joint,6 cases had bone contusion of radius or ulnar,synovial reaction was also clearly depicted on conventional MRI and direct MR arthrography in all cases.Conclusion Compared with results of arthroscopy,direct MR arthrography can adequately reveal the injury of the triangular fibrocartilage complex,synovial reaction and edema changes are depicted on conventional MRI.

AIM:To study the microRNA profiling in the serum of insulin-resistant mice and the mechanism of insulin resistance induced by related microRNAs.METHODS:A high-fat diet was used to induce insulin resistance model in KM mice.The microRNA profiling in serum of insulin-resistant and normal mice was analyzed by microarray chip and were validated by real-time PCR.miRanda data base was used to forecast target genes.miRBase was used to obtain the se-quences of related microRNAs, based on which protein interactions were predicted using the online analytical tool STRING. RESULTS:In serum of insulin-resistant mice, the expression of miR-125, miR-126, miR-143, miR-30a, miR-199a, miR-127, miR-184, miR-30e, miR-134, miR-195, miR-206, miR-429, miR-212, miR-362, miR-382, miR-154 and miR-466h was significantly up-regulated.miR-211, miR-504, miR-877 and miR-1930 were significantly down-regulated. miR-143 associated with insulin resistance was able to bind to 3'-UTR of fat mass and obesity-associated protein (FTO), and FTO was found to interact with Rpgrip1l, Tmem18, Mc4r, Npy, Hhex, Tcf712, Cdkal1, Slc30a8, Igf2bp2 and Tha-da.CONCLUSION:Twenty-one microRNAs in the serum of insulin-resistant mice induced by a high-fat diet are signifi-cantly different from those of normal mice, in which 17 kinds were significantly up-regulated.miR-143 closely related to in-sulin resistance is able to regulate FTO protein expression, which interacts with other 10 proteins associated with the occur-rence and development of diabetes.The results are also useful for further study of the molecular mechanisms in insulin re-sistance.

Accurate measurements of voltage and current from electrosurgery are the basis of development of electrosurgery with feedback function. We, therefore, developed a parameter measurement system based on PC, with high voltage and current from electrosurgery being sensed with transformers, amplified, filtered, transformed into single-ended signals, and then into RMS signals. The root mean square (RMS) signals were transformed into digital signals through DAQ card and the data was processed in PC with Labview. The process included sampling, displaying and storage. The experiment results indicated that the measurement system could measure the output parameters from electrosurgery steadily and correctly so that the development of the system has been successful. It can be the basis of development of embedded parameters measurement system and can provide accurate feedback information for intellectual electrosurgery.
Electrosurgery ; instrumentation ; Equipment Design

OBJECTIVE: To study the curative effect and prognosis of salvage surgery performed for recurrent laryngocarcinoma. METHOD: The clinical data of 43 patients with salvage surgery for recurrent laryngocarcinoma hospitalized in Nanfang Hospital between 2003 and 2011 were analyzed retrospectively. Survival analysis was performed by using Kaplan-Meier method and prognosis factors were analyzed by Log-rank test. RESULT: After salvage surgery, 10 (23.3%) patients developed postoperative complications. Pharyngocutaneous fistula and infection occurred in 8 (18.6%) patients. Kaplan-Meier analysis showed that patients survived for 3-year (n = 32) and 5-year 25) after salvage surgery were 56.3% and 32.0% respectively. Univariate analysis indicated that clinical stage in the first diagnosis was significantly correlated with 3 year overall survival (P < 10.05). Local recurrence of laryngeal cavity group and preservation of laryngeal function group had a good prognosis respectively, but no sig nificant difference between them. CONCLUSION Salvage surgery is a good choice for recurrent laryngeal carcinoma. Outcomes of these patients were correlated with clinical stages. Laryngeal function preserving surgery for local recurrent laryngeal carcinoma can achieve a expected curative effect and prognosis.
Adult ; Aged ; Aged, 80 and over ; Female ; Follow-Up Studies ; Humans ; Laryngeal Neoplasms ; surgery ; Male ; Middle Aged ; Neoplasm Recurrence, Local ; surgery ; Prognosis ; Retrospective Studies ; Salvage Therapy ; Treatment Outcome

Objective To explore the clinical values of the modified thoracic drainage devices that were applied in treatment of primary spontaneous pneumothorax patients who underwent single-port video-assisted thoracoscopic surgery. Methods Clinical data of 82 primary spontaneous pneumothorax patients who underwent single-port video-assisted thoracoscopic lung wedge resection and pleurodesis from January 1st, 2015 to August 31st, 2016 was analyzed retrospectively. These patients, according to the thoracic drainage devices, were divided into traditional group (Group A, n = 42) or modified group (Group B, n = 40). These statistical data, including duration of thoracic drainage, lengths of hospital stay, duration of using antibiotic, amounts of pleural drainage, scales of pain, and complications of the two groups of patients in postoperative stage, were compared. Results There was no significant differences (P > 0.05) in volumes of thoracic drainage while there were significant differences (P < 0.05) in duration of thoracic drainage, lengths of hospital stay, duration of using antibiotic, scales of pain, and complications in postoperative stage between the two groups. And patients in group B had shorter time of thoracic drainage, hospital stay, and using antibiotic, lower scales of pain and rates of complications when compared with group A. Conclusion There are some clinical values of application of modified thoracic drainage devices in treatment of primary spontaneous pneumothorax underwent single-port video-assisted thoracoscopic surgery, because of it could give the patients fast recovery and made the operations simpler.

Objective:To detect the existence of IFNGR in the stellate ganglion in female goats .Methods:The stellate ganglia were taken from female goats .The expression of IFNGR was detected by PCR method and immunohistochemical SP staining .Results:The results showed that:IFNGR immunoreactive substances were distributed in neurons , supporting cells and passing fiber , and mainly in the cytomembrane and nuclei of neurons .The relative expression of IFNGR was very significantly higher than that of non-neuronal cells (P<0.01).The sequence of IFNGR1 gene amplified by PCR method contained 376 bp, and IFNGR1 gene of goats exhibited the highest homology with sheep(98%),followed by cattle(97%).Conclusion:The results suggested that the IFNGR in the Stellate Gan-glion of female goats mainly expressed and located in sympathetic postganglionic neurons which were provided with the conditions for the role of IFN-γ, which implied that the Stellate Ganglion may act as the critical point to concert the immune regulation of IFN -γand neu-roregulation of autonomic nerve on cardiovascular system .

OBJECTIVE: To evaluate the clinical value of heterogeneous acellular dermalmatrix with autologous bone meal in open tympanoplasty. METHOD: Twenty-eight cases (30 ears) with middle ear cholesteatoma were trea- ted by open tympanoplasty and repaired by heterogeneous acellular dermalmatrix autologous bone meal on study team. Twenty-two cases (22 ears) with middle ear cholesteatoma were treated by open tympanoplasty on control team. All patients were followed up for 12 to 18 months and assessed the fuction postoperatively. RESULT: The re- construction of external auditory canal structure is close to normal, and no narrow happens on study team. The rate of dry ear was about 90%. All cases had no recurrence of cholesteatoma. CONCLUSION Application of decellu- larized dermal matrix with autologous bone meal can rise early to cover the wound, promote wound healing and to reduce the external auditory canal, reduce the effect of granulation and scar formation. It is a kind of method of repair to be promoted.
Acellular Dermis ; Biological Products ; Cholesteatoma, Middle Ear ; surgery ; Cicatrix ; Ear Canal ; surgery ; Humans ; Minerals ; Postoperative Period ; Recurrence ; Tympanoplasty ; methods ; Wound Healing

Post traumatic depression (PTD) is a serious complication after traumatic brain injury, with high incidence rate; PTD seriously affects the rehabilitation, outcome and quality of life of patients. Due to unclear pathogenesis of PTD, effective treatments have not yet been found in clinical practice. Repetitive transcranial magnetic stimulation (rTMS), as a new non-invasive neuroregulatory technique, has been used in major depression disorder (MDD). Few clinical evidence on PTD treated by rTMS is noted and optimal rTMS treatment regimen has not yet been defined.This article reviews the clinical studies of rTMS in PTD in recent years, with a view to provide references for clinical application.

Objective:To investigate the protective effects of Elabela(ELA) on the renal injury of db/db mice and its possible mechanism.Methods:Sixteen eight-week-old male db/db mice were intraperitoneally injected with ELA(5 mg·kg -1·day -1) or equivalent normal saline( n=8) for 8 weeks. Eight age-matched male db/m mice received equivalent normal saline injection as normal control. At the end of the experiment, blood and urine samples were obtained for HbA 1C and urinary albumin/creatinine(ACR) measurements. Immunohistochemistry was used to observe the expression of ELA. Histopathological changes in kidney tissue were observed by HE staining and Masson staining. The levels of collagen type Ⅳ(Col-Ⅳ) and transforming growth factor-β1(TGF-β1) as well as Yes-associated protein(YAP) phosphorylation in kidney tissue were examined by western blot. Results:Immunohistochemistry results showed that ELA expression was decreased in the renal tissue of db/db mice as compared with that of db/m mice( P<0.05). After ELA treatment, ACR and blood pressure were markedly decreased in db/db mice( P<0.05), but without significant changes in the body weight and HbA 1C. Renal tubular epithelial cells edema, basement membrane thickening, and increased collagen fiber in db/db were improved by ELA administration. Compared with db/m mice, the levels of TGF-β1 and Col-Ⅳ expression, as well as YAP phosphorylation were significantly increased in renal tissue of db/db mice(0.98±0.08 vs 0.68±0.10, 1.10±0.14 vs 0.51±0.08, 3.38±0.72 vs 0.81±0.13, all P<0.05), which were down-regulated after ELA administration(0.80±0.06, 0.51±0.05, 2.21±0.22, all P<0.05). Conclusion:ELA may improve the renal injury of db/db mice by regulating the signaling pathway of YAP, thereby delaying the development of diabetic nephropathy.

Objective To explore the feasibility and efficacy of transcatheter closure of ventricular septal defect (VSD) through radial artery combined femoral vein approach. Methods A total of 11 patients with congenital VSD, who were admitted to authors' hospital during the period from June 2017 to November2017, were enrolled in this study. The patterns of lesion included intracristal type (n=3) and perimembranous type (n=8), and in 3 patients the VSD was associated with concant ventricular septal aneurysm. Transcatheter closure of VSD via radial approach was carried out in all patients. The mean age of the patients was (37.82±12.44) years old, and the average body weight was (62.79±14.95) kg. The transthoracic echocardiography (TTE) showed that the mean diameter of VSD was (5.87±1.91)mm. The effect of transcatheter closure therapy was assessed by intraoperative TTE and left ventriculography. All patients were followed up with electrocardiogram and TTE at 24 hours and one, 3, 6 months after transcatheter closure therapy. Results Successful closure was achieved in 10 patients, and one patient had to be transferred to surgery because the catheter could not pass through the defect. The mean diameter of the implanted occluders was (7.50±3.60)mm, the average procedural time and fluoroscopy time were (47.20±5.45) min and (13.00±3.65) min respectively. The postoperative average in-bed time was (99.00±11.97) min. Two patients developed radial artery spasm during the operation. During the follow-up period lasting for a mean of (3.50±1.90) months, no serious complications, such as dropping of occluder, residual shunt, atrioventricular block, aortic regurgitation, radial artery occlusion, etc. occurred in the 10 patients. Conclusion For the treatment of VSD, transcatheter closure through radial artery combined with femoral vein approach is safe and effective. Therefore, this technique is worthy of clinical application.