Efforts are being made to build up platforms to support basic research of ophthalmology by organizing capable staff,adequate instruments,technical assistance,and by applying practical evaluation and cultivating healthy cultural environment.While significant progress has been achieved with scientific publications and international academic exchanges,the ophthalmology society still has a long way to go to enhance the basic research in the field of eye science.Utilization of modern biomedical tools,technologies and strategies will undoubtedly further improve the efficacy and production in the area of basic research of ophthalmology in this country.

Purpose：To determine the treatments and prognostic predictors of malignant melanoma of the head and neck. Methods：Surgical treatment and outcome was analyzed for 28 patients with malignant melanoma of the head and neck at department of the head and neck of our hospital (1984-1994). Results：23 patients underwent local excised as the first treatment, and local recurrence was demonstrated in 8 (34.8%). Margin of resection of primary melanoma was divided into narrow excision (≤2 cm) and wide excision (＞2 cm), and 5-year survival was 58% and 40%(P＜0.01). According to surgical methods, 5-year survival of WE, WE/END and WE/TLND were 80%, 80% and 39%. Conclusions：An excision with 2 cm margin is safe procedure for primary tumor of malignant melanoma of the head and neck. Neck dissection may not be practiced until neck lymph node is positive. Neck dissections differ from the positions of the primary tumors, and the flaps must be raised preferably superficial to the platysma.

There was never a time in history that so many disciplines and specialists participate and try to lead the clinical management for acute pancreatitis. Chaos remains at bedside, and episodes of under-intervention and especially over-treatment frequently happened. Physicians are easily confused by questions and controversies in management for acute pancreatitis. We have reviewed the articles in acute pancreatitis and made our recommendations based on the latest evidences.

Acupuncture Therapy ; Adult ; Aged ; Fasciitis ; therapy ; Female ; Humans ; Male ; Middle Aged

This paper reports the study and design of a visualization system of the ultrasonic rhinitis therapeutic apparatus with the function of endoscopic sinus. On Linux operating platform, we captured the video data of a video capture card that connected the endoscopic sinus using Video4Linux (V4L2) that was provided by the operating system. The video images were displayed by Qt. The visualization system solved the problem that the current ultrasonic rhinitis therapeutic apparatus had to rely on the large and expensive endoscopy equipment. And this simplified the doctors' operation, met the need of monitoring nasal cavity in the process of operating, greatly reduced the costs of treatment and would contribute to the promotion of the instrument. As a result, it has been tested that the nasal endoscopic image achieved by the system is clear and smooth, and fully meet the clinical needs of ultrasonic treatment of rhinitis.
Endoscopy ; Equipment Design ; Humans ; Nasal Cavity ; surgery ; Rhinitis ; therapy ; Software ; Ultrasonics ; instrumentation ; Video Recording

Objective To determine the characteristics and the best parameters of the retinal nerve fiber layer (RNFL) thickness measured by optical coherence tomography (OCT) in the early diagnosis of primary open angle glaucoma (POAG). Methods The thickness of RNFL was quantified by OCT (Carl Zeiss Meditec, Stratus OCT3000 version 3, RNFL3.4) in 71 POAGs(119 eyes) and 76 controls(148 eyes). Results The 9 OCT parameters with the largest AUCs and asymptatic significance less than 0.05 in ROC curve in the early diagnosis of primary open angle glaucoma (POAG) were thickness of 6, 7, 11 o’clock position, inferior, superior, average thickness, inferior maximum, superior average, inferior average. Conclusion In early stage of glaucoma, the thickness of RNFL measured by OCT provides a new index for the diagnosis of glaucoma. The best parameters seem to 6, 7, 11 o’clock position, inferior, superior, average thickess, inferior maximum, superior average, inferior average.

Objective To prepare and identify monoclonal antibodies (mAb) against histidine-tag (His-tag ) .Methods Balb/c mice were immunized with polypeptides containing 15 histindine(His)-coupled BSA and this fusion was prepared according to con-ventional methods .Indirect ELISA was used to screen the positive clones and limited dilution for further cloning .After purified with Protein G affinity chromatography ,these antibodies for His-tag were detected for antibody titer ,relative affinity as well as subtypes by using ELISA .The specificity of these mAb was identified by ELISA and Western blotting analysis .Double-antibody sandwich ELISA was composed of these mAb paired with the corresponding recombinant protein of specific antibody ,which was used to de-tect the recombinant protein quantitatively .Results 5 hybridoma cell lines stably secreting anti-His-tag IgG1(κ) were screened .A-mong these antibodies ,1-G2 was of the highest affinity ,reaching 1 .27 × 1010 ,which could combine with different recombinant pro-teins containing His-tag in the experiment of ELISA and Western blotting .1-G2 also could be used to detect recombinant PCT pro-tein containing His-tag quantitatively by using double-antibody sandwich ELISA with antibody of PCT ,the sensitivity of detection reached 4 .6 ng/mL .Conclusion The mAb against for His-tag with high specificity ,affinity and secreted stably are successfully prepared .This prepared antibody could be used in ELISA and Western blotting to detect a variety of His-tag .

OBJECTIVE: To study the changes of serum vascular endothelial growth factor (VEGF) and beta 2-microglobulin levels before and after radiotherapy in 58 patients with nasopharyngeal carcinoma (NPC), and to elucidate the clinical significance of VEGF and beta 2-microglobulin test before radiotherapy. METHODS: Serum VEGF level was measured by sandwich ELISA in 58 patients with NPC and 24 healthy individuals, and the serum beta 2-microglobulin was assayed with time-resolved fluoroimmunoassay. RESULTS: The serum VEGF level in patients with NPC was (174.0+/-130.0) ng/L, higher than (134.1+/-66.6) ng/L of the healthy subjects, but the difference was not significant (P>0.05). The serum VEGF level was higher in T4 and IV a patients with NPC. No significant differences in the levels of serum VEGF were found among various N classifications in the patients with NPC. Patients with the serum VEGF level higher than 267.3 ng/L (mean+2 s of the serum VEGF level in the healthy individuals) had a shorter metastasis-free survival time (P<0.05). Although the patients with high beta 2-microglobulin level had a shorter survival time, the difference was not significant. CONCLUSION: The NPC patients with high serum VEGF level have a poor prognosis.

Objective To investigate the effect of surgical intervention combined with steroid therapy on infantile hepatitis(INS) with persistent jaundice.Methods Twenty-two patients (19 males,3 females,aged 2-6 months) with persistent jaundice(therapy group) were admitted into hospital in the period of Jan.2007-Dec.2008.The patients were performed with surgical intervention after they were confirmed with diagnosis as INS.Then,sodium chloride,gentamicin and Dexamethasone were used to irrigate the biliary tract during and after the operation for 14 days.Three days after operation,20 mg,15 mg,10 mg,5 mg of methylprednisolone were administered intravenously to the patients every 3 days,followed with 4 mg/(kg?d) prednisone by oral for 2-3 months.The 17 cases of INS with persistent jaundice were treated with medicine as control(control group).By following-up,the jaundice free and 2 years survival rate of 2 groups were compared by counting the cases of jaundice free and recording the survival time.Results Two cases of 22 patients performed with surgical intervention were diagnosed as biliary atresia and others were INS,90.0% patients were free of jaundice in surgical intervention combined with steroid therapy group,which was higher than that in control group(52.9%,P

Objective To study the relationship between vascular endothelial growth factor (VEGF) and occurrence and invasiveness of bladder cancer. Methods The concentration of VEGF in urine was examined by ELISA in 36 cases of transitional cell carcinoma of bladder. Results The concentration of VEGF was low (3.73?2.63 pg/ml) in controls whereas it has been high in bladder carcinoma (210.97?154.68 pg/ml ), P