Public Health Ophthalmology is a population-,region-or country-based as a whole object,and is committed to improving the eye health of the whole population.Epidemiological investigation of the eye was named to the region from a single disease to variation of diseases from cross-sectional survey to a longitudinal cohort study.Epidemiological investigations is the most important way which can reflect the pathogenic factors for public health policy-making,early diagnosis and prevention and treatment of eye disease,and Research to Prevent Blindness.Imaging Diagnosis,quality control,improve the reliability of the epidemiological investigation,and to strengthen the study of disease,race,and molecular levels and create a unique epidemiological study.

The intra-arterial thrombolysis is one of the most effective approaches in salvaging brain ischemic penumbra and treating acute cerebral infarction.However,because of the limita- tions of short time windows for treatment,intracerebral hemorrhage after thrombolysis and reocclusion,more clinical studies are needed before this technique is widely developed and applied.

Objective To explore the pathogenesis of thrombocytopenia in chronic type B hepatitis. Methods The serum thrombopoietin (TPO) levels, bone marrow megakaryocyte (MK) count, platelet-associated immunoglobulin G (PAIgG), splenic index (SPI), prothrombin activity (PTA) were measured in 76 chronic type B hepatitis patients with thrombocytopenia. Results The regression analysis revealed that the platelet count was correlated with parameters including the serum TPO levels, bone MK count, SPI and PTA (r was 0.450, 0.521, -0.438, 0.428 respectively, P<0.05). The regression equation was Pt=36.38+0.23 TPO-0.57 SPI+0.69 MK, R<'2>=0.57, F=18.78, P<0.01. Conclusion It suggests that decline of thrombopoiedn, myelosuppression and hypersplenism may contribute to thrombocytopenia in chronic type B hepatitis patients.

Objective To evaluate the diagnostic value of endoscopic ultrasonography-guided fineneedle aspiration(EUS-FNA)for pancreatic occupying lesion,especially pancreatic cancer.Methods From year of 2005,37 patients with suspected pancreatic cancer by means of uhrasound,CT or MRI received EUS-FNA.Amylase and tumor markers(CEA,CA19-9 and CA125)in cyst fluid were analyzed if applicable.The patients were followed up till July 2008,and the results of EUS-FNA were compared with those confirmed during the follow-up.Results The EUS-FNA yielded diagnosis of 16 cases of pancreatic duetal adenocarcinoma,1 metastatic:renal cancer,5 suspicious malignancy,6 atypia,6 normal pancreatic tissue,and 3 normal non-pancreatic tissue.During the follow-up,25 cases of pancreatic cancer and 10 benigh lesions,including 4 chronic panereatitis,4 cyst-adenoma and 2 pseudocyst,were confirmed,and the other 2 cases still remained un-determined.The sensitivity,specificity,positive predictive value and negative predictive value of EUS-FNA were 80.0%(95% CI:59.0-93.0),100.0%(95% CI:60.0-100.0),100.0%(95% CI:80.0-100.0),and 55.6%(95% CI:27.0-79.0),respectively.No severe procedurerelated complication was observed.Conclusion EUS-FNA is a safe and effective medality for diagnosis of pancreatic occupying lesions,especially pancreatic cancer.

Diagnosis, Differential ; Hemangiopericytoma ; metabolism ; pathology ; Hemangiosarcoma ; metabolism ; pathology ; Histiocytoma, Malignant Fibrous ; metabolism ; pathology ; Humans ; Immunohistochemistry ; Leiomyosarcoma ; metabolism ; pathology ; Nerve Sheath Neoplasms ; metabolism ; pathology ; Neuroectodermal Tumors, Primitive ; metabolism ; pathology ; Rhabdoid Tumor ; metabolism ; pathology ; Rhabdomyosarcoma ; metabolism ; pathology ; Soft Tissue Neoplasms ; metabolism ; pathology ; Urinary Bladder ; metabolism ; pathology

Hand ; Humans ; Occupational Exposure ; Vibration ; Workplace

Objective To analyze the recuperation of lungs after TECAB, and probe more effective nursing care for the lungs of patients after TECAB. Methods 20 cases received the treatment of TECAB were collected during the period of January 2009 to July 2010. Due to the reason of ventilation with single lung, patients were demanded to strength breath and take right lateral position and treated with back-tapping in left lung. Meanwhile, patients were treated with back-tapping with lower intensity and more times and lower frequency vibration ( 10 - 15 time/s). The recuperation of patients were observed and analyzed. Results After treatment, the value of PaO2 and PaCO2 were in normal range, and no complications were occurred and all of them recovered from illness. Conclusions Effective and well-targeted lungs nursing is an important assurance that helps the sufferer to recover from illness and the new lungs nursing after one-lung ventilation in TECAB is effective.

OBJECTIVETo investigate the effect of histone deacetylase inhibitor suberic bishydroxamate (SBHA) on human acute myeloid leukemia (AML) cell lines.

METHODSAML U937, KG-1 and Kasumi-1 cells were treated with SBHA. Cell growth was measured by MTT assay. Apoptosis was determined using flow cytometry. Activation of Caspase pathway and expression of apoptosis regulator proteins were detected by Western blot.

RESULTSSBHA significantly induced growth arrest and apoptosis in U937, KG-1 and Kasumi-1 cells. Enhanced apoptosis was observed in SHBA group evidenced by strong activation of Caspase-9, Caspase-8 and Caspase-3. SHBA treatment resulted in down-regulation of anti-apoptotic protein Bcl-2 and Bcl-xl expression; down-regulated expression of antiapoptotic proteins survivin, XIAP and cIAP was also detected after SBHA treatment.

CONCLUSIONSBHA can effectively kill AML cells by inhibiting cell growth and inducing apoptosis, which is associated with the activation of Caspase pathway and regulation of apoptotic related proteins.

Apoptosis ; drug effects ; Apoptosis Regulatory Proteins ; metabolism ; Caspases ; metabolism ; Cell Line, Tumor ; Histone Deacetylase Inhibitors ; pharmacology ; Humans ; Hydroxamic Acids ; pharmacology ; Leukemia, Myeloid, Acute ; metabolism ; pathology

Acetates ; pharmacology ; Animals ; Disease Models, Animal ; Diving ; adverse effects ; Ear Canal ; injuries ; Nitrogen ; Oxygen ; Protective Agents ; pharmacology ; Rabbits

BACKGROUND: Key point for subculture of human embryonic stem cells (hESCs) is to inhibit spontaneous differentiation and make sure totipotency of cells. Although mouse embryonic fibroblasts (MEF) or human foreskin fibroblasts (HFF) used as the feeder layer can maintain undifferentiated state of embryonic stem cells, cell clone is still imperfect and parallel arranged. OBJECTIVE: To establish mixed feeder layer of mouse embryonic fibroblasts plus human foreskin fibroblasts and to observe the hESCs growth.DESIGN: Multi-sample observation and comparison.SETTING: Medical Center of Reproduction, the Affiliated Hospital of Hainan Medical College. MATERIALS: This study was performed at the Medical Center of Reproduction, the Affiliated Hospital of Hainan Medical College from April 2006 to July 2007. Foreskin was derived from the children who underwent circumcision and came from Urinary Surgery, the Affiliated Hospital of Haihan Medical College. The children's family members provided the informed consent, and the experiment received confirmed consent from the local ethic committee. hESCs line HN-1 was separated from human blastula. Eleven 12.5-14.5-day-old fetal mice of clean grade were selected in this study. The experimental animals were disposed according to ethical criteria. METHODS: Heads, four extremities, and viscera were removed from fetal mice under anesthesia. Subsequently, cell suspension was prepared using routine trypsinase digestion and inoculated. When cells were cultured in confluent monolayer, some primary cells were frozen, processed with mitocin-C for 2.0-3.0 hours, and inoculated based on the density of 1×108 L-1 in gelatin-coated dish, I.e., MEF feeder layer. The HFF separation and culture and the preparation of HFF feeder layer were the same as above-mentioned processing. In addition, the two fibroblasts were respectively counted and mixed together according to the ratios of 1∶0, 3∶1, 1∶1, 1∶3, and 0:1. And then, the mixture was inoculated based on the density of 1×108 L-1 in gelatin-coated dish, I.e., mixed feeder layer. The growth of subcultured hESCs in vitro was observed in three different feeder layers, and hESCs in the mixed feeder layer underwent alkaline phosphatase test, OCT-4 expression immunohistochemical measurement, and OCT-4 and telomerase mRNA expression RT-PCR detection. Finally, differentiation in vitro of hESCs was observed after removing the feeder layer.MAIN OUTCOME MEASURES: ① Growth of hESCs in the three different feeder layers; ② Growth of hESCs in the mixed feeder layer based on different mixed ratios; ③ undifferentiated state of hESCs in the mixed feeder layer; ④ differentiation in vitro.RESULTS: ① hESCs clone in the MEF and HFF feeder layers was thin and flat and imperfect, but hESCs clone in the mixed feeder layer was perfect and thick and solid. Apparently, the clone form in the mixed feeder layer was superior to MEF and HFF feeder layers. ② When MEF and HFF was mixed together according to the ratio of 1∶1, hESCs grew in apparent accumulation; clone border was clear; eminentia was apparent and perfect. However, there were no changes according to the ratio of 1∶3. The ratio of 1∶1 was superior to the ratios of 1∶0, 3∶1, and 0∶1. ③ Alkaline phosphatase staining and OCT-4 antigen expression were strongly positive. Specific straps of OCT-4 and telomerase mRNA expression were observed at 200-300 bp and 300-400 bp, respectively. ④ Embryoid bodies were formed. hESCs could differentiate into multi-morphological cells after attachment.CONCLUSION: ① The mixed feeder layer may well support in vitro subculture of hESCs to acquire excellent clone form compared to MEF or HFF feeder layer. ② The mixture of MEF and HFF has excellent effect according to the ratio of 1∶1.