Objective To observe the biological characteristics and analyse primary therapeutic response of acute erythroid leukemia.Methods The data of 28 patients primarily diagnosed as acute erythroid leukemia were analyzed.The patients were divided into with muhilineage dysplasia group and without muhilineage dysplasia group,and the morphology,immunology,cytogenetics and molecular biology characteristics and the complete remission rate of the first induction therapy were compared.Results There were 14 cases(50％)with muhilineage dysplasia,which involved in two lineage or trilineage.In 6 cases by flow cytometry,the myeloid blast immunophenotypes were common expressed.In 8 cases detected by karyotype analysis,5 cases were chromosomal abnormal,including 4 cases were complex chromosomal abnormal,1 case was trisomy 8.In 4 cases underwent WT1 detection,all of them were positive.The complete remission rate of the first induction therapy was 39.29％(11/28),the ratein the multilineage dysplasia group was 35.71％(5/14),and the ratein without multilineage dysplasia group was 42.86％(6/14),the difference had no statistical significance(P＞0.05).The complete remission rate of the complex chromosome group was 25.00％(1/4),the intermediate prognostic group was 50.00％(2/4).Conclusions Acute erythroid leukemia had special biological features different from other subtype AML:accompanyed with high frequency of multilineage dysplasia.The abnormality of karyotype were high,and it was often complex karyotype involved with chromosome 5 and/or chromosome 7,which had a low complete remission rate.The complete remission rate of chemotherapy was low,treatment effect was poor.

Background The reduced glutathione(GSH) is a water soluble antioxidant in retina and it is an important component of thiol.Diabetes induce the oxidative response of retina.It is very important to detect the content of thiol in retina for the evaluation of its antioxidant role.Objective This study was to investigate the effect of carnosine,aspirin and a combination of carnosine and aspirin eye drops on the change of the thiol contents in the retina of the diabetic rats. Methods Diabetic models were induced in 76 clean male Sprague-Dawley(SD) rats by intraperitoneal injection of streptozotocin(65 mg/kg).The 0.02 mi sodium citrate buffer was injected in 12 control rats.1%camosine eye drops or 0.05%aspirin eye drops were topically administered respectively in carnosine group (19 rats)or aspirin group(19 rats)two times per day for a period of 8 weeks,and the combination of 1%carnosine eye drops and 0.05%aspirin eye drops was used in the combination group at the same way(19 rats).At the end of 8 weeks.The animMs were sacrificed and the eyeballs were enucleated for the detect of thiols in the retina by colorimetry.Results The body weight of SD rats was significantly reduced and the blood glucose level was evidently arose in model group,camosine group and aspirin group in comparison with control group(P＜0.05),but those of combination group compared with control group was insignificantly changed(P＞0.05).The level of thiol in retina was(1 90.35+46.62)ms/gprot in model group,showing a considerable decrease in comparison with control (202.77+53.49 ms/gprot)(P＜0.05).However,the thiol level rose to(378.40±165.06)mg/gprot in camosine group and(351.88±211.62)mg/gprot in aspirin group,showing a statistically significant difference in comparison with control group(P＜0.05).The content of thiol in combination group compared with control group Was insignificant changed(166.972±50.287 mg/gprot us 202.77±53.49 mg/gprot).Curiously the levels in the combination group were not different from the normal control group. Conclusion The carnosine and aspirin eye drops may protect the retina against the oxidative damage caused by diabetes.

Objective:Acute retinal necrosis syndrome(ARNS) is a rare disease with high blinding rate.The surgery of vitrectomy,endolaser photocoagulation and silicone oil injection is considered an effective treatment of ARNS.The study investigated the effect of vitrectomy,endolaser photocoagulation and silicone oil injection treating ARNS.Methods:A consecutive 16 eyes of 16 patients with ARNS were treated with vitrectomy,endolaser photocoagulation and silicone oil injection.The 5 eyes without retinal detachment were photocoagulated from the posterior border of necrosis to the ora serrata.The 11 eyes with retinal detachment were treated with subtotal retinal photocoagulation,air/fluid exchange and silicone oil injection.The follow-up time were 6 months at least,16 months in average.Results:The final best-correcting visual acuity was counting fingers in 3 eyes(18.8%),0.02-0.3 in 7 eyes(43.8%),0.4-0.6 in 5 eyes(31.3%),0.7 in 1 eye(6.3%).The silicone oil was uneventfully removed in 14 patients(87.5%) from 3 to 12 months.No one had a recurrent retinal detachment.Conclusion:There is a favorable effect in ARNS with the treatment of vitrectomy,endolaser photocoagulation and silicone oil injection.

AIM: To investigate the effects of proteasome inhibitor Z-LLL-CHO(MG132) on human osteosarcoma cell line MG-63 and its possibly mechanism.METHODS: After treated with different concentration of MG132,the morphological change,ultrastructral morphology,cell viability,cell apoptosis,gene transcription and protein expression in MG-63 cells were accessed by fluorescence microscope,electron microscope,MTT assay,agrose gel electrophoresis,FCM,RT-PCR and Western blotting.RESULTS: Proteasome inhibitor MG132 was an effective inducer of apoptosis in human osteosarcoma MG-63 cells.Not only apoptotic changes,but also cell arrest at G2-M-phase,the accumulation of p27kip1,the accumulation of activated caspase-8 and increased ratio of Bax∶Bcl-2 were observed.However,to normal human diploid fibroblast cells,MG132 did not show apoptosis-inducing effect.CONCLUSION: Apoptosis induced by MG132 may be caspase-8,p27kip1and bcl-2-related.

Dental Implants, Single-Tooth ; Dental Prosthesis, Implant-Supported ; Esthetics ; Humans ; Maxilla

Objective To evaluate the combined impacts of blood glucose and its related metabolic factors on 18F-FDG uptake by liver.Methods A total of 544 subjects (384 males and 160 females, age range 24-73 years) undergoing 18F-FDG PET/CT were recruited in this retrospective study.SUVmean of the right lobe of liver was calculated.Two-sample t test and one-way analysis of variance were performed to compare SUVmean between patients with different genders and BMI levels.Linear correlation analysis, partial correlation analysis and multiple linear regression analysis were conducted to evaluate the relationship between age, injected 18F-FDG dose, blood glucose, serum T3, T4, FT3, FT4, BMR, BMI and liver SUVmean.Results The SUVmean of the liver in males and females were 1.89±0.42 and 1.92±0.38 (t=0.693, P>0.05), but it was significantly different among BMI groups (F=3.056, P<0.05).Age, blood glucose and FT3 were significantly associated with liver SUVmean (r′ values: 0.108, 0.140 and 0.105, all P<0.05) and were independent factors that indicated variation of liver SUVmean (β values: 0.006, 0.070 and 0.088, all P<0.05).Blood glucose was the strongest powerful predicting variable of liver SUVmean (β′=0.154, P<0.001).Conclusions Blood glucose and its related metabolic factors can affect the liver 18F-FDG uptake.Age, FT3, blood glucose are independent factors predicting variation of liver SUVmean.The impact of glucose metabolism status should be considered when assessing liver 18F-FDG uptake.

OBJECTIVE: To study the effects of Wenyang Chubi Decoction (WYCBD), a compound traditional Chinese herbal medicine, on connective tissue growth factor (CTGF) and collagen-I (COL-I) in a mouse model of scleroderma. METHODS: Scleroderma was induced in BALB/c mice by daily local injection of bleomycin for three weeks and the mice were randomly divided into untreated, WYCBD-treated and normal saline (NS) treated groups, with another group of BALB/c mice as normal control. WYCBD and NS were given orally for one month respectively. Histopathology in the skin and lungs of the mice were examined. The CTGF and COL-I expressions in the skin or skin lesions were detected by immunohistochemical Elivision assay. RESULTS: The expression levels of CTGF and COL-I in the untreated group were significantly higher than those in the normal control group (P<0.05). Compared with the NS-treated group, the WYCBD-treated group had significant improvement in the skin and lung histopathology and remarkably decreased expression levels of CTGF and COL-I (P<0.05). CONCLUSION: Scleroderma mice showed high expressions of CTGF and COL-I in the skin. WYCBD had the effects of decreasing the CTGF and COL-I expressions and improving the skin fibrosis.

Objective To determine the roles of thymic stromal lymphopoietin receptor (TSLPR) and its antibody in airway inflammatory response in asthmatic mice, and to promote maturation and activation of dendritic cells (DCs) in mouse airway. Methods BALB/c mice were randomly divided into group A, B and C. The mice in group B and C were intraperitoneally injected with OVA for allergization while the mice in group A were intraperitoneally injected with PBS as the normal control. The mice in group B and C were treated by inhalation of non-specific IgG and TSLPR IgG respectively, before provocation of asthma using OVA. The bronchoalveolar lavage fluid (BALF) of the mice in different groups were collected for cell differential counts and quantitative detection of IL-4, IL-5, IFN-γand IL-10 levels by ELISA. Moreover, the pulmonary tissue specimens of the mice were collected for pathological examination, and the numbers and phenotypes of DCs from the local lymph nodes and pulmonary tissue were determined by flow cytometry. Results The levels of all the tested cytokines in the BALF from mice in group B and C were remarkably higher compared to those from mice in group A (P<0.01). However, both the IL-4 and IL-5 levels in the BALF from group C mice that pre-blocked with TSLPR IgG were lower than those from group B (P<0.05, P<0.01), whereas both the IFN-γ and IL-10 levels in the BALF from group C mice were higher than those from group B (P<0.05, P<0.01). Furthermore, the numbers of total cells, eosinophils and lymphocytes in the BALF from group C mice were also lower than those from group B (P<0.01). A large number of inflammatory cell infiltration around the bronchus, beaker cell proliferation and mucous secretion reinforcement could be found in the samples from group B mice, while slight inflammatory cell infiltration and beaker cell proliferation in the samples from group C mice. The numbers of DCs in mediastinal lymph node and the levels of I-Ad, CD40, CD80 and CD86 expression of pulmonary DCs from group B mice were higher than those from group C mice (P<0.05). Conclusion TSLP/TSLPR have an effect on promoting asthma, which is closely relative to its regulation of DCs activation. And the interference of TSLPR antibody can decrease the effect of TSLP/TSLPR which indicating a potential of the antibody as a novel anti-asthma drug.

Objective To evaluate the application of contrast-enhanced transrectal ultrasound ( CETRUS) to identify prostate cancer(PCa) from benign prostatic hyperplasia(BPH). Methods A total of 86 patients with focal prostatic disease detected by trans rectal ultrasound(TRUS) were enrolled in this study.Each patient underwent grey-scale TRUS, CE-TRUS, and targeted-biopsy of prostateunder ultrasound guidance successively on the same day. The criteria of perfusion pattern would be statistically analyzed among groups divided by pathological findings. Every patient's images of CE-TRUS were observed and features of perfusion pattern were recorded by two doctors who were blind to any clinical data of patient.Then these features recorded by two doctors were compared, if the features were coherent, they would be recorded as final results,and otherwise two doctors would consult till the features were coherent. Results Compared with BPH group, the enhancement features of PCa group were rapid enhancement, increased enhancement, heterogeneous enhancement, well-defined boundary of lesion after enhancement, asymmetric appearance of intraprostatic vessels, rapid decrease, perfusion defect areas within lesions and the roughly discontinuous juncture between enhancement and no enhancement area within lesions. Conclusions There was significant difference in enhancement pattern between BPH and PCa groups, observing enhancement pattern could help to identify prostate cancer from benign prostate hyperplasia.