Objective To investigate the expression of thymosin ?4 in the foreskin,normal skin(except the foreskin),hypertrophic scar,and keloid,and its relationship to pathological scars.Methods In situ hybridization was applied to detect the expression of thymosin ?4 mRNA [With the probe of BM005698(EST) gene marked by digoxin] in four groups: foreskin,normal skin(except the foreskin),hypertrophic scar,and keloid.Both qualitative and semi-quantitative analysis were performed.Results Thymosin ?4 mRNA was expressed in all the four groups.The proportion of thymosin ?4 mRNA expression in the keloid was 2/10,which was 25% of that in the foreskin(8/10),and was 28.6% of that in the normal skin(7/10).The positive rate of thymosin ?4 mRNA expression in the dermis was higher than that in the epidermis;and was high in fibroblasts,intravascular endothelial cells,and macrophages.The mean OSD of the positive samples was 0.03?0.01 in the keloids,which was significantly lower than that in the normal skins(0.09?0.03) and hypertrophic scars(0.09?0.02)(P=0.000 for both).Compared with the normal skins,the expression increased by 231.5%(P

Objective To study the application value of digitization radiography in group wound. Methods Emergency patient were taken photos on all positions by the system of digitized X-ray phantom equipment DR or CR. Results Image quality was improved and the success ratio of taking photo reached 100%. Both lasting time of examination and the radiation dose reduced. Conclusion The application of digitized X-ray photography is superior to that of the system of traditional screen or piece,which provides more information of photography for clinical in time.

AIM: To observe the clinical efficiency of intravitreal conbercept on diabetic macular edema(DME).METHODS: This was a single arm, open-babel prospective study.Twenty eyes from 20 patients (12 males and 8 females) with DME diagnosed by fundus fluorescein angiography (FFA) and optical coherence tomography (OCT) were enrolled.Before the injection, best-corrected visual acuity (BCVA) of early treatment of diabetic retinopathy study (ETDRS), non-contact tonometer, ophthalmoscope, fundus photography, fundus fluoresein angiograph (FFA), and OCT were examined.All affected eyes were treated with intravitreal conbercept 0.05mL (10mg/mL).Patients were followed up for 6 to 11mo, with a mean duration of 8.55±1.96mo.Post-treatment BCVA, CMT, leakage of macular edema and complications were compared with baseline using repeat analysis.RESULTS: The initial average visual acuity (ETDRS letters) were 43.35±17.45, range from 9 to 70.The initial average central macular thickness (CMT) was 576.30±167.92μm, range from 337 to 987μm.The mean BCVA showed significant improvement during 1, 3, 6mo post-treatment and the latest follow up, with a mean increase of 11.2±5.9, 13.8±7.9, 15.7±6.8 and 14.7±8.6, respectively (P<0.01).The changes of BCVA between before and at 1mo after treatment were different compared with the changes between before and at 6mo (P<0.01).During the latest follow up, the mean BCVA was obviously improved in 10 eyes (50%), improved in 7 eyes (35%), stable in 3 eyes (15%).Likewise, the mean CMT significantly decreased during the follow-up period with a mean CMT reduction of 183.8±159.5, 292.9±169.0, 271.4±167.2 and 286.4±166.9μm respectively (P<0.001).The CMT at 1mo were different with that 3, 6mo and final follow-up (P<0.01).During the latest follow up, macula lutea leakage disappeared in 6 eyes (30%), decreased in 12 eyes (60%) and increased in 2 eyes (10%).No adverse events such as secondary retinal detachment or endophthalmitis were found during the follow-up.CONCLUSION: Intravitreal conbercept significantly improve visual acuity and macular edema exudation.

Course construction is the groundwork for vocational college to improve education quality. The first thing for the excellent course construction is to raise awareness. The fundamental starting point and destination are benefitial to students. It must start from the teachers themselves, and have entire optimization in the teaching content,teaching methods ,teaching materials, the means of teaching and so on.

Objective This research is to observe the treatment effects of hip bath and oxygen blowing on severe neonatal diaper rash.Methods 289 neonates with severe diaper rash were randomly divided into three groups.91 cases in the flat tube group,102 cases in the round tube group and 96 cases in the control group.Three groups of neonates were cleaned on the hips and perineuma after poops and then dried with wet tissues and Mupirocin Ointment.The control group was treated with the above-mentioned method.The oxygen blowing groups were treated with hip bath of 1:5000 chameleon solution twice a day.Blowing the hips with oxygen five minutes every time after hip bath.The method of blowing oxygen was that oxygen humidifying containers as normal oxygen aspiration facilities was not filled with water,whose oxygen flowing volume standed at 10 L/min and whose tube blew at the afflicted parts until being dry.The oxygen blower held the oxygen exit and blowed at the afflicted parts in the round tube group and the oxygen blower flattened the oxygen exit and blew at the afflicted parts in the fiat tube group.The treatment effects will be compared among the three groups four days later.Results The cure period of the round tube group was obviously shorter than that of the control group,and the cure period of the fiat tube group was remarkably shorter than that of the round tube group.The total effective rate in the round tube group was obviously higher than that of the control group and the total effective rate in the fiat tube group was obviously higher than that in the round tube group.The difference had a statistical significance.Conclusions The treatment effects for the severe neonatal diaper rash with hip bath and oxygen blowing are remarkable and the oxygen blowing effects with fiat tubes are better than those with round tubes.

Objective To study the (-)-epigallocatechin-3-gallate (EGCG) function on the proliferation of T cells derived from the peripheral blood and synovial fluid of rheumatoid arthritis (RA) and RA-related cytokine levels and the role of EGCG on RA synovial fibroblasts (FLS) proliferation was investigated. Methods ① Mononuclear cells from RA peripheral blood (30 cases) and synovial fluid (23 cases)were isolated. Blank group, negative control group, positive control methotrexate (MTX) group and therapeutic group with three different concentrations of EGCG were set up. Incorporated isotope 3H was used to test T cell proliferation from RA-PBMC and SFMC. ELISA assay was used to test cytokine (TNF-α, IFN-γ, IL-1, IL-6 and IL-17A) levels. ② MTT assay was used to test FLS proliferation from RA synovial tissue (8 cases).Results ① The CPM value of the high-dose group of EGCG in the peripheral blood and synovial fluid of RA patients was [ ( 15 136±2910), ( 11 587±3135 ) ], which was declined significantly than the control group (42856±2127) (P＜0.01). The levels of TNF-α, IFN-γ, IL-1, IL-6 and IL-17A in the high-dose group of EGCG in the peripheral blood were [(321±13), (298±20), (132±12), (197±7), (59±8) pg/ml], which were decreased significantly than those of the control group [ (458±28), (505±26), (346±28), (405±25),(109±13) pg/ml ] (P＜0.05 or P＜0.01 ). The levels of TNF-o, IFN-γ, IL-1, IL-6 and IL-17A in the highdose group of EGCG in the synovial fluid were [(41.4±2.9), (182±16), (56.3±11.0), (34.2±1.9), (44±8)pg/ml ], which was decre-ased significantly than the control group [ ( 388.3± 19.3 ), (469±20), ( 104.2±17.8 ),( 114.5±4.8), ( 104±11 ) pg/ml] (P＜0.05 or P＜0.01 ). ② The level (A) of the high-dose group of EGCG in the FLS was (0.08±0.02), which was declined significantly than the blank group (0.27±0.04) (P＜0.05).Conclusion ① In vitro EGCG can inhibit T cell proliferation from peripheral blood and synovial fluid of RA patients and the TNF-α, IFN-γ, IL-1, IL-6 and IL-17A secretion are decreased. ② In vitro EGCG can inhibit the proliferation of RA FLS.

Objective To compare the radiosensitivity effect of celecoxib on oln93 and u373 cells,and to explore the related mechanism.Methods Both oln93 cells and u373 cells were respectively divided into control group,drug group,radiation group and combined group when treated with celecoxib and irradiation.Cell survival ratio was evaluated by MTT assay and clogenic assay.Flow cytometry and Western blot assay were used to measure cell cycle and protein expression.Results Celecoxib had a similar effect on oln93 and u373 cells in enhancing the radiosensitivity (t =2.215-30.996,P ＜ 0.05 ; t =0.383-11.732,P＜0.05)and blocking cellcycle in G0/G1(t=-6.1-5.141,P＜0.05).Compared with the radiation group,the combined group showed S phase arrest(t =-18.174,P ＜ 0.05),and increase of Cyclin A protein (t =-8.087,P ＜ 0.05) in oln93 cells,and G2/M arrest and decrease of Cyclin B1 and DNA-PKcs and MRE11 protein (t =-8.838-10.45,P ＜ 0.05) in u373 cells.Conclusions Celecoxib illustrates a more sensitive radiosensitivity to u373 cells by regulating its cell cycle and DNA damage repair.

Objective To select the best condition for microwave assisted extraction (MAE) of flavones from leaves of Ginkgo biloba L . and compare this method with the most conventional extraction way. Methods Both microwave assisted extraction and theat maceration were adopted for flavones from leaves of Ginkgo biloba L. , and the total content was determined by spectrophotometry. Results Under appropriate MAE conditions, both the recovery and purity of total flavones obtained from the experiments by uniform design and the orthogonal design were very similar. The optimal recovery and purity by orthogonal experimental design were 212 4 mg/g and 61 9%, respectively. The optimal results by orthogonal experimental design were 216 2 mg/g and 57 1%, respectively. However, the results by maceration were only 114 6 mg/g and 40 1%, respectively. Conclusion MAE is a more suitable method for the extraction of flavones from leaves of Ginkgo biloba L . because of its higher extraction rate and purity.

Prostate cancer is one of the most common malignant tumors in men and related studies have achieved great breakthrough in recent years.But because of the lack of effective in vivo animal models, the process to translate basic research into clinical application has been severely hampered.Patient derived prostate tumor xenograft ( PDPTX) model is an ideal animal model in which freshly isolated tumor tissues from patients were inoculated into immunodeficient mice.This model can duplicate the heterogeneity of primary tumor in a better way and keep the tumor complexity at molecular, genetic and pathological levels.Particularly, the PDPTX model, in which the isolated tumor tissue is inoculated under the renal capsule, is even better, because it solves the clrawbacks of traditional subcutaneous inoculation model.In traditional mod-els, the success rate is low, it’s not easy for lower grade tumor to form xenograft, and it’s not easy to reconstruct metasta-sis, etc.PDPTX provides a more ideal in vivo model for prostate cancer studies.It has irreplaceable advantages, especially in target therapy, new drug screening and individualized tumor treatment.

ObjectiveTo investigate the expression of CCL2 and its effects on the proliferation and adhesiveness on leukemia cells in patients with acute lymphoblastic leukemia(ALL). MethodsThe bone marrow mesenchymal cells (BMMSC) and bone marrow mononuclear cells (BMMNC) of 30 ALL patients and 30 healthy controls were studied, and CCL2 level was evaluated by ELISA. CCL2 gene mRNA level in ALL was determined by RT-PCR. The cell proliferation and adhesiveness were detected by MTT assays. The cell counts were measured by flow cytometry. ResultsThe BM plasma levels of CCL2 in patients at diagnosis were significantly higher than that in healthy controls [(780.12±129.61) pg/ml vs (120.49±25.21) pg/ml,t =4.96, P =0.00]. Supernatant levels of CCL2 in BMMSC were significantly higher than that of BMMNC [(572.38±35.39) pg/ml vs (193.85±15.45) pg/ml,t =5.37,P =0.00]in vitro.CCL2 cannot induce leukemia proliferation alone,but could induce leukemia proliferation in BMMNC and BMMSC co-culture in a dose- and time-dependent manner.CCL2 could increase the leukemia adhesive to the BMMSC compared with control (r =0.824,P =0.02).ConclusionPatients with B type ALL had higher levels of CCL2 which was secreted by BMMSC. The leukemia could induce the BMMSC to secrete CCL2. CCL2 could promote the survival and proliferation of leukemia in the presence of BMMSC and BMMNC, and enhance ALL cells adhesion toBMMSC in a dose-dependent manner.