Objective To observe the effect of electro-acupuncture therapy (ET) on the expression of sodium channel Na(v) 1.1 in rats after acute cerebral ischemia and the mechanism of any protective function of ET.Methods A model of focal acute cerebral ischemia was established by occluding the right middle cerebral artery.One hundred and eighty healthy SD rats were randomly divided into a sham operation control (SC) group, an ischemia control (IC) group, a real ET group and a false ET group, with 45 in each group. Immunohistochemistry and real-time polymerase chain reaction (PGR) methods were used to detect Na(v)1. 1 expression. 2,3,5-triphenyl tetrazolium chloride (TTC) staining was used to detect infarct volume. Neurological examination and grading was carried out at 6 hours and then 1, 2, 3 and 7 days after inducing ischemia. Results The gradings and infarction volume ratios of the rats in the IC group were the most serious, while in the real ET group the severity was much less at each time point. Compared with the SC group, the expression of Na(v) 1.1 was significantly up-regulated in the IC group. The expression of Na(v) 1.1 was increased at the 6th hour, then down-regulated to the lowest level at day 1,then from the 2nd to the 7th day was up-regulated again. The expression of Na(v) 1.1 in the real ET group was significantly lower than in the IC group. Although the expression of Na(v)1.1 in the false ET group was low compared with the IC group, the difference was not significant. The difference between the real ET group and the false ET group was significant, however. Conclusions ET can reduce damage from cerebral ischemia and benefit the recovery of neural function. ET can also could regulate the expression of Na(v)1.1 after acute cerebral ischemia, which may be an important mechanism for neural function recovery.

OBJECTIVETo provide reference data on frequency and distribution of bone islands (BIs) and investigate their relationship with age, gender, and localization.

METHODSA population who received a pretreatment and at least one follow-up panoramic radiograph in the Department of Oral Radiology, West China Hospital of Stomatology, Sichuan University, were selected for this retrospective study. A sample population of 29,556 patients (12,824 males and 16,732 females) with different dental complaints and ages ranging from 8 to 80 years (mean age: 23.95 years) were included.

RESULTSIn the radiographic evaluation, BIs appeared as localized, well-defined, non-expansile, radiopaque masses which were round, elliptic, or irregular in shape. Their sizes varied from a few millimeters to about 2 cm in diameter. A total of 598 radiopacities were detected, and 545 patients of 29,556 patients (1.84%) had BIs. Among subjects with multiple lesions, 49 patients had 2 BIs and 2 patients had 3 BIs. The BIs had immense mandibular predilection, with presentation primarily in the premolar/molar region. The condition appeared to have no tendencies based on sex.

CONCLUSIONRecognition of BIs variation is significant in dental examinations.

Bicuspid ; China ; Humans ; Mandible ; Molar ; Radiography, Panoramic ; Retrospective Studies

OBJECTIVETo evaluate the value of cone-beam CT (CBCT) in the diagnosis and orientation of supernumerary teeth in the anterior maxilla.

METHODS195 supernumerary teeth in the anterior maxilla of 146 patients were included, which were examined by CBCT. The number, shape, size, 3-dimensional position, growth direction of the supernumeraries and their relationship with the neighboring teeth were analyzed.

RESULTSThe 146 patients aged from 5 to 39, and males were affected more than females in a ratio of 2.95:1. 102 (69.9%) patients had single supernumerary teeth. Of the 195 supernumerary teeth, 126 (64.6%) were near the middle line, 131 (67.2%) were conical, 51 (26.2%) were curved root, 98 (50.3%) were inverted and had a length of (11.97 +/- 2.40) mm. The supernumerary teeth often caused complications.

CONCLUSIONThe position of the supernumerary teeth is varied in the maxilla, and often causes permanent dentition complications. CBCT imaging yields accurate 3-dimensional pictures of supernumerary teeth, local dental and bony structures, which is helpful for diagnosis and orientation of supernumerary teeth.

Adolescent ; Adult ; Child ; Child, Preschool ; Cone-Beam Computed Tomography ; Female ; Humans ; Male ; Maxilla ; Tooth Root ; Tooth, Supernumerary ; Young Adult

OBJECTIVETo investigate the efficacy of the double-balloon and triple-channel catheter (DBTC) in the treatment of chronic bacterial prostatitis (CBP).

METHODSOne hundred and three CBP patients were randomly assigned to three different groups and received three different therapies, respectively: 1. 61 cases by transurethral perfusion and drainage with antibiotics with DBTC catheter; 2. 29 cases by intravenous antibiotics, and 3. 13 cases by transurethral irrigation with 0.9% saline. The lecithin, white blood cells (WBC) in expressed prostatic secretion (EPS) and Meares-Stamey's test fractionary urine culture pre- and post-therapies were compared.

RESULTSThe improvement rates of clinical symptoms and lecithin corpuscles were 81.9% and 68.9%, respectively. And the decline rate of WBC and bacteriological efficacy rate were 75.4% and 91.8%, respectively. There was a significant statistical difference between the DBTC group and the intravenous group in the lecithin, WBC and bacterial culture (P < 0.05, < 0.01 and < 0.01, respectively), and so was there between the saline group and the intravenous group in the decline of WBC(chi 2 = 5.6, P < 0.05), but with no difference in lecithin and bacterial culture. Among 61 patients treated with DBTC, 3 developed mild allergic reaction in urethra.

CONCLUSIONSTransurethral DBTC has a better clinical efficacy than traditional intravenous treatment for CBP. DBTC perfusion combined with other hypurgia holds obvious advantages of being safe, effective, easy and repeatable in the treatment of CBP.

Adolescent ; Adult ; Bacterial Infections ; complications ; therapy ; Catheterization ; methods ; Chronic Disease ; Humans ; Male ; Middle Aged ; Perfusion ; methods ; Prostate ; microbiology ; Prostatitis ; microbiology ; therapy

Objective we assessed our institutional outcomes of hybrid treatment for aortic arch disease with supra-aortic debranching and endovascular stent graft repair.Methods From March 2016 to November 2016,6 patients underwent Hybrid total aortic arch repair:1 had aortic arch pseudoaneurysm;1 had type Ⅲ aortic dissection;4 had aortic arch aneurysm because of hypotension,of whom 1 with aneurysm prerupture and 1 with Aortic intramural hematoma.Supra-aortic vessels were involved and high-risk for traditional operations in all patients.Bifurcated artificial vessels were used,main vessel was end-to-side anastomosed with ascending aorta.Branching vessel were end-to-end anastomosed with right innominate artery and left subclavian artery,end-to-side anastomosed with left common carotid artery.Then,stent graft was implanted into ascending aorta and aortic arch.All patients were followed postoperatively,with regularly contrast computed tomography angiogram (CTA) and echocardiography(discharge,three months,six months,and yearly).Results Hybrid procedure with supra-aortic debranching and endovascular stent graft repair were completed in all patients,technical success rate was 100％.There were no perioperative obvious morbidity and mortality,follow-up period were 2-9 months.1 patients had stroke during follow-up period,condition improved after treatment.Supra-aortic vessels were patency and there were no endoleak in all patients.There were no recurrent aortic disease during follow-up period.Conclusion Hybrid aortic arch replacement can be performed with good postoperative and early results in high-risk patients for traditional open repair.

OBJECTIVETo analyze the imaging manifestations of third molar (M3) in aged 11, and to explore the relationship of development between M3 and second molar (M2), canine (C).

METHODSA total of 399 cases, aged 11, of West China School of Stomatology in June-August 2010 were selected as the imaging database. The M3, M2, C on the panoramic images were observed and the development degree in 399 was divided. And then the correlation analysis was done.

RESULTS45.5% of M3 in aged 11 was in stage C. 30.8% of M2 was in stage F. 36.1% of C was in stage G. The development of M3 appeared earlier in girls than in boys, and earlier in the mandible than in the maxillary. There was no significant difference between the left and right side. The correlation coefficient between M3 and M2 was 0.437, and the correlation coefficient between M3 and C was 0.132.

CONCLUSIONThe general trends of the developments of M3 and M2, C were the same. The development of M3 can be used to describe the development of M2 and C, according to the close relationship in radiograph.

China ; Female ; Humans ; Male ; Mandible ; Maxilla ; Molar ; Molar, Third

Objective To explore a more minimally invasive and economical treatment for atrial septal defect (ASD) through comparing the efficacy and safety in percutaneous transcatheter closure of atrial septal defect procedure,guided by transthoracic echocardiography(TTE) and transesophageal echocardiography(TEE).Methods From March 2014 to September 2017,197 patients with ASD who were feasible to treated with percutaneous transcatheter closure procedure evaluated by preoperative ~ were recruited.TTE showed ASD belonged to secundum(central type) with a maximal diameter range from 2 mm to 35mm,including 82 cases of the ASD without aortic rim.There were 106 patients(47males and 59 females including 37 ASD without aortic rim) with a mean age of 14.2 years(6 months-59 years) old and a mean body weight of 29.5(8.5-64.0)kg were performed percutaneous transcatheter closure of ASD guided by TEE under general anesthesia and endotracheal intubation,and 91 patients(41males and 50 females with 45 ASD without aortic rim inside) with a mean age of 13.8 years(9 months-65 years) old and a mean body weight of 30.4 (9.5-61.0)kg were treated with the percutaneous transcatheter procedure guided by TTE when patients in waking state of local anesthesia(general anesthesia were adopted in patients under 12 years old without intubation).The size of the occluder was selected on the basis of the maximal diameter plus 2-6mm.All 197 cases intraoperation and postoperation data were collected,including complications 、operation time 、operation room stay time and total cost.Results 1 patients in 106 cases of the the TEE group were transferred to small incision on the chest performing transthoracic transcatheter closure of ASD because the difficult stuck of the occluder.3 patients in TEE group transferred to repair under cardiopulmonary bypass(CPB) via small incision on the chest because the difficult stuck of the occluder even in using transthoracic transcatheter closure way.86 patiens in TTE group successfully treated with percutaneous transcatheter closure,and there were 5 failed cases including 2 patients who transferred to TEE guided because of the poor imaging of TTE,another 2 cases treated with transthoracic transcatheter closure of ASD because the difficult stuck of the occluder,and 1 patient performed ASD repair procedure under CPB via small incision on the chest because of the huge ASD without aortic rim and difficult stuck of the occluder.All the 197 patients were cured and discharge from hospital,and there were no complications.There was no significant difference in age,weight,and maximum diameter of ASD between TEE group and TTE group (P ＞ 0.05).Follow-ups were conducted by TTE at month 3 post-operation,and all 197 cases performed no residual shunt of ASD,there were no difference between 2 group.The stay time in the operation room was(68.2 ± 17.3) min in group TEE and (34.7 ± 16.8) min in group TTE,there was obviously shortened the stay time in operation room(P ＜0.01).The total cost of the TTE group was(24.2 ± 2.1) thousand yuan,and the group TEE was(29.3 ± 1.4) thousand yuan,and the cost was significantly reduced in TTE group (P ＜ 0.01).Conclusion The treatment of percutaneous transcatheter closure of ASD guided by TTE is effective and safe,and the feature of more non-invasive and socioeconomic benefits show a broad application prospect.

In order to cultivate qualified oral clinicians, strengthen examination management, and strictly implement process assessment, Special Training Base of Oral and Maxillofacial Radiology in West China Hospital of Stomatology, Sichuan University, has implemented a whole-process and diversified assessment reform. In the part of process assessment, firstly the students were asked to fill in the workload form to give timely feedback on training and truly reflect attendance records; secondly, the performance of trainees in class was comprehensively evaluated in clinical training and theoretical teaching to improve their ability of comprehensive thinking of clinical problems. In the part of result assessment, the traditional theoretical assessment method was weakened, and the ability of comprehensive clinical research was strengthened. Trainees were guided to choose the topic flexibly and use standardized PPT format, and a comprehensive score was determined after assessment. Experts were invited to give their advice, so as to enhance the clinical confidence and scientific research confidence of trainees and help them expand their learning depth and breadth within the limited training time. The analysis of examination methods and assessment results shows that the "whole-process and diversified" assessment mode can truly reflect the training results of trainees and lay a solid foundation for further improvement and implementation of standardized training.

Porphyromonas gingivalis peptidylarginine deiminase (PPAD), an isoenzyme of animal endogenous peptidylarginine deaminase, is secreted by the Por system and catalyzes the citrullination of arginine. Recent studies have found that PPAD can affect the formation of Porphyromonas gingivalis biofilm and reduce the body′s immune defense function, which is related to the occurrence and development of many diseases such as periodontal diseases and rheumatoid arthritis. In this paper, we reviewed the molecular characteristics of PPAD, including the genetic and functional characteristics, as well as the mechanisms related to the inflammatory and autoimmune diseases. We also pointed some issues that should be pay attention to in the further study.

OBJECTIVE: To investigate accuracy of the currently used strategies for intraocular pressure measurements for reflecting actual 24-hour intraocular pressure fluctuations. METHODS: From September, 2018 to January, 2019, the patients with a suspected diagnosis of primary open angle glaucoma at our hospital were prospectively enrolled to receive 24-hour intraocular pressure monitoring using a Goldmann tonometer. With the intraocular pressure measurements at 0:00, 2:00, 5:00, 7:00, 8:00, 10:00, 11:00, 14:00, 16:00, 18:00, 20:00, and 22:00 as the gold standard (strategy 1), we compared the measurements taken at 5:00, 7:00, 10:00, 14:00, 18:00, and 22:00 (strategy 2) and at 8:00, 11:00, 14:00, and 16:00 (strategy 3) for their accuracy in reflecting 24-h intraocular pressure fluctuations. RESULTS: A total of 41 patients (82 eyes) were enrolled in this study. The peak intraocular pressures measured using the 3 strategies were 21.09±4.15 mmHg, 20.54±4.10 mmHg, and 19.91±4.38 mmHg, respectively, showing significant differences among them ( CONCLUSIONS For suspected cases of glaucoma, intraocular pressure measurements at 4 and 6 time points of a day can not precisely reflect the actual range of intraocular pressure fluctuations, and may lead to a missed diagnosis of glaucoma.
Glaucoma/diagnosis* ; Glaucoma, Open-Angle ; Humans ; Intraocular Pressure ; Prospective Studies ; Tonometry, Ocular