Histone acetylation and deacetylation is an important regulatory way of gene expression in eukaryotic cells. As a key regulatory enzyme, histone deacetylase is overexpressed in many malignant tumors, including hepa- tocellular carcinoma. In addition, it has been suggested to be a potential therapeutic target for solid tumors. In this study, we review the classification, mechanisms, as well as the expression and regulation of histone deactylases in hepatocelhlar carcinoma.

AimTo compare the protective immunity against challenge infection in mice immunized by crude antigen preparations derived from adult worms, newborn larvae and musele larvae of T richinella spiralis. MethodIntestinal adult worms, muscle larvae and blood absolute eosinophil level were counted; the level of serum IgG to antigens of T. spiralis muscle larvae was detected by ELISA. ResultsAdults reduimg rate was 82.19 %, 72.31% and 42.88 % in the adult, newborn larvae and muscle larvae antigen groups respectively. Muscle larvae were reduced 68.83%. 78.19% and 51.96% respectively. The serum IgG titer in all immunized groups increased significantly, the GMRT values of adult, newborn larvae and mudscle larval antigen groups were 7.46, 5.28and 4.92times higher than that in control group respectively. Periphery blood absolute eosinophil level enhanced significantly. ConclusionThe data demonstrate that all of the adult, newborn larvae and muscle larvae antigens of T. spiralis can activate specific humoral and cellular immunity which induce protection to challenge infection in mice. Among these antigens, adult and newborn larvae antigens show better immunogenicity and it may be possible that adult antigen will provide a potential vaccine for trichinosis.

Growth dynamics of PP, CN and ZS2 strains of Toxoplasma gondii isolated in China was studied and compared with that of RH strain. HeLa cells were used in this work. It took only 2 min for the organisms of RH strain to infect the HeLa cells when con-tacting with the cells. By contrast, the CN strain requires 5 min, the ZS2 and PP strains, 10 min.Tcxoplasma began its multiplication after a lag time of about 6 h in the HeLa cells. The mean generation time of the 4 strains was assessed by calculating the number of the parasites in the parasitophorous vacuoles at different incubation times and by the linear regression equation. The results showed that the mean generation time was 5.2 h for RH strain, 5.98 h for CN strain, 6.78 h for ZS2 strain and 7.69 h for PP strain.Among the 3 strains of Toxoplasma gondii isolated in China, CN strain was similar to RH strain in their infectivity and proliferation.

Aim To prepare and identify monodonal sntibody (Mab) specific for Toaoplasma gondii tachyzoites. Method The Mab specific for Taxoplasma gondii tachyrzoite were prepared via bybridoma technique. Indirect ELISA was used to determine the activity of the Mab. Agarose double immuodiffusion test was performed to confirm subclass and SDS-PAGE & western blot were used to analysis rolecular weight of the antigen (s) recognized by the Mab. IFA was used to identify the epitope of Taxoplasma gondii tachyzoites. The protection and specificity of the Mab were snalysed at same time. The Mab was tesed in Mab-ELISA method to detect Taxoplasma gondii antigen. Results A Msb F7C8H12 specific for T. gondii was produced. It belongs to IgG1 subclass. Moleculsr weight of the sntigens recognized by the Mab was 16.5 and 24 kDa. IFA did not show fiuorescence in intact tachyzoite.Inhibition test showed that the inhibition rate was 50% when the concetration of the antigen was 40μg/ml.Afterthe RH strain tachyzoites were incubated with Mab ascites, mice were inected with the tachyzoites through peritoneum. The results showed that the mean dead time of mice were not delayed. T. gondii antigen mixed with PBS snd normal human serum was detected by Mab-ELISA, the sensitvity was 0.78 yg/ml and 1.5μg/ml respectively. When mice were infected with T. gondiiRH strain tachyzoites, 103/mouse p.i., circulating antigen could be detectedin 6 day and 8 day. Conchusion The Mab (F7C8H12) to T. gomdii tachyzoites is an excellent probe for studying T. gondii snd toxoplasmosis.

The present study were to identify a dose-response relationship and study the histologic correlates. Group A : The rabbit's iliac segments of normal control,were performed in radiofrequency balloon angioplasty. Group B: The iliac segments of rabbits, which had been manually separated in to intime- media and media-adventitia layes, were performed in radiofrequency balloon angioplasty. Radiofrequency dose delivered from a metal electrode balloon produced dose-dependent thermal energy with compression. It produces fusion of separated wall layers. Range of radio -frequency from clean and shallow craters with histologic evidence of thermal compression at does(

Aim In order to observe the pathological features and the dynamic distribution of RH strain T. gondii in main organs of infected mice, using indirect immunoenzymatic technique. To provide pathological diagonsising reference of toxoplasmosis and increase to understand the pathologensis of Toxoplasmosis. Methods Mice were infected intraperitoneally with 103 tachyzoites of T. gondii RH strain,and the parasites were detected using indirect immunoenzymatic technique in the liver, spleen, lungs and brain at 2,4,6 and 8 days postinfection. Results The liver was the first organ parasitized at D2, followed by spleen and lungs at D4, the brain at D8. At the early phase of infection, parasites were found on the edge of the liver and spleen. A few parasites were detected within the liver, spleen and lungs with time being. But parasites increased progressively and distributed well during the whole phase. The brain was the last organ to be parasitized. Parasites multiplicated rapidly so that the mice were seriously ill and died. Conclusions The indirect immunoenzymatic technique can demonstrate tachyzoites and Toaxoplasma antigen clearly in infected mice during acute stage. Many organs were infected such as liver, spleen,lungs and brain. The results suggest that the organs in the peritoneal cavity were infected directly by tachyzoites as IP infection, then the parasites disseminate through a blood way, and in the end, tachyzoites cross the blood-brain barries to reach the brain.

AIM: To explore the clinical significance of detecting sCD44s and sCD44v6 in breast carcinoma.METHODS: Levels of serum soluble CD44 standard (sCD44s) and CD44 variant 6(sCD44v6) were detected by ELISA in 38 cases of breast cancer, 15 cases of benign breast diseases and 40 normal controls. RESULTS:The serum levels of sCD44s and sCD44v6 were significantly higher in patients with breast cancer than those with benign disease or normal controls. The serum concentrations of sCD44s and sCD44v6 in patients with stage Ⅲ, Ⅳ were significantly higher than those in patients with stage Ⅰ, Ⅱ(P

Objective To explore clinic effect and advantages of the free arm lateral neurocutaneous flap in repairing cutaneous defects of opisthenar.Methods Between July,2012 and December,2013,12 patients with skin and soft tissue defects in opisthenar caused by trauma factor,accident,machine injury,hot crush injury etc were treated with free arm lateral neurocutaneous flap at our institution.Vessels both in recipient and donor site were detect-ed by color Doppler ultrasound preoperatively.Relative cutaneous nervers were reserved in the flap during selective operation.The flap size resected range from 6 cm × 4 cm to 10 cm × 6 cm.The posterior cutaneous nerve of the forearm were included in the flap to restore sensory sesation after transection.The wound in the donor site was closed in in-tradermal suture primarily.Postoperative algesia,touch,temperature sensation,Weber test of flap were tested and reco-rded.The critia of follow-up in this study were donor site morbidity,abnormal sensations,functional outcomes and sat-isfaction.Results The success rate was 100 percent in the series cases.The average length of follow up was 35 months (range,24 to 41 months).The wound in recipient area healed primarily and flaps showed no pigmentation but fine overall appearance,texture,and elasticity.The functional recovery of protective sensation was S3+ in 4 cases,S3 in 6,S2 in 2.Patients with liner scar in donor site were higly satisfied with the flaps for the sake of no significant joint functional outcomes.In terms of sensory sesation,the excellent and good rate of flap reached to 83 percent.Conclusion The free arm lateral flap represented a constant vascular anatomy,rich blood supply.Easy dissection,pliable texture,skin colour close to dorsum of hand and the possibility to be innervated through the posterior cutaneous nerve of the arm acceptable donor side morbidity provide a good option for the reconstruction of cutaneous defects of opisthena.

AIM: To determine the ultimate preservation time of murine cardiac grafts in 4℃ Ringer's solution. METHODS: Murine cardiac grafts were implanted to the abdominal vessels heterotopically 2, 4, 6, 8 and 10 hours after cold preservation. Graft survival rate and histological morphological changes, as well as the neutrilphil, T cell, macrophage infiltration, ICAM expression were determined by immunohistochemistry. RESULTS: The cardiac function-recovery rate and 1-week graft survival rate were 100% and 83.3% in 6-hour preservation group. Compared with non-preservation control group, no more apparent histological damages, cell infiltration and ICAM expression were found. CONCLUSION: The ultimate preservation time of murine cardiac graft in 4℃ Ringer's solution was 6 hours. [

Objective To investigate the chromosomal and subcellular localization of DOC-1R terminal 1(DCT1),and detect its expression in human tissues.Methods Chromosome localization of DCT1 was detected by radiation hybrid.pEGFP-DCT1 was constructed,and HeLa cells were transfected with the plasmid.The subcellular localization of DCT1 protein was observed by fluorescence microscope.Real-time PCR was performed for the determination of DCT1 expression level in 16 kinds of human tissues.Results DCT1 was demonstrated to localize in 5q31,and its encoding protein was detected on the nuclear membrane.Additionally,DCT1 was proved to express universally in all the 16 kinds of human tissues and it was expressed at the highest level in spleen.Conclusion DCT1 might be a regulator in cell cycle,and ubiquitously express in human tissues.