OBJECTIVETo study changes of plasma ADMA levels of patients with non-ST elevation myocardial infarction (NSTEMI) undergoing percutaneous coronary intervention (PCI) and to explore the effect of Salvia Miltiorrhiza (SM) on them.

METHODSTotally 52 patients with confirmed NSTEMI undergoing PCI were randomly assigned to the SM treated group and the control group, 26 in each group. Patients in the SM treated group received the conventional therapy plus SM (1 g each time, three times per day till one month after PCI). Those in the control group only received the conventional therapy. Plasma ADMA levels were measured before PCI, and at day 1 and 30 after PCI.

RESULTSPlasma ADMA levels in both group obviously decreased at day 30 after PCI with statistical difference (P < 0.01). The decrement was more obviously seen in the SM treated group, with statistical difference when compared with the control group (P < 0.01).

CONCLUSIONSPatients with NSTEMI undergoing PCI could have plasma ADMA levels decreased. Administration of SM just before PCI might be associated with negative regulating plasma ADMA levels.

Arginine ; analogs & derivatives ; blood ; Drugs, Chinese Herbal ; pharmacology ; Humans ; Myocardial Infarction ; metabolism ; Percutaneous Coronary Intervention ; Salvia miltiorrhiza

Purpose To detect the expression of CD90 in invasive ductal breast carcinoma with different molecular subtypes and to explore its clinical significance.Methods The expression of CD90,ER,PR,Ki-67 and HER-2 were detected in 80 cases of invasive ductal breast carcinoma tissue and 20 cases of breast benign lesion with immunohistochemical method.The relationship between CD90 and clinicopathological parameters were analyzed.Results The positive expression rate of CD90 in invasive ductal breast carcinoma and breast benign lesion tissues were 62.5％ and 20.0％,respectively (P ＜0.001).The expression of CD90 in invasive ductal breast carcinoma was correlated with lymph node metastasis (P ＜ 0.05),but not with age,tumor size,TNM staging and histological grade (P ＞ 0.05).Among different molecular subtypes,CD90 expression level in Luminal A type was the lowest (40.0％),and the level in triple negative type was the highest (82.4％) (P ＜0.05).CD90 expression level was negatively correlated with ER (r=-0.342,P＜0.05) orPR (r=-0.374,P＜0.05) expression level,but not with Ki-67 (r =0.084,P ＞ 0.05).Condusion The over-expression of CD90 is related with molecular subtypes of breast carcinoma,and its high expression suggests a poor prognosis.

Objective To explore the protective effect of resveratrol against oxidative damage to cultivated fibroblasts irradiated with UVB. Methods Fibroblasts from normal human skin cultured in vitro were divided into 5 groups (a normal control group, a group irradiated with UVB, a group treated with resveratrol before UVB irradiation, and a group treated after irradiation). A monolayer of fibroblasts was irradiated with UVB at 60 mJ/cm2. The vitality of the cells was measured using the methylthiazol tetrazolium (MTT) method. The activity of superoxide dis-mutase (SOD) and malondialdehyde (MDA) content were determined using enzyme biochemistry. Results Resveratrol over 100 μM inhibited the proliferation of fibroblasts. Resveratrol under 100 μM improved the proliferation of cells. The optimal concentration was 50 μM. UVB irradiation decreased the vitality of the cells and SOD activity, and it significantly enhanced MDA content. Conclusions Resveratrol treatment before or after UVB irradiation elevates the survival rate of fibroblasts, enhances the activity of SOD, and decreases MDA content. Resveratrol at low concentration could improve the proliferation of fibroblasts, and at high concentration could inhibit their proliferation. Res-veratol at 50 μM relieves the inhibited proliferation of fibroblasts damaged by UVB irradiation.

OBJECTIVETo explore the methods and therapeutic effects of trans-fibular anterior-lateral approach combined with external fixation in the treatment of Gustilo III distal tibiofibula fractures.

METHODSFrom 2007 to 2010,9 patients including 7 males and 2 females with the mean age of 40 years(ranging from 29 to 51 years). All patients received internal fixation of fibula after debridement on the first phase, external fixator were used to fix tibia across ankle joint, and removed after successful skin graft; The second phase tibia was used to fix through the lateral incision used in phase I. Early functional exercise was encouraged ,the union condition and functional results of the ankle joint was evealuated. The criteria of the AOFAS Foot and Ankle Surgery was used to evaluate the effects.

RESULTSAll patients were followed up,and the duration ranged for 8 to 37 months(averaged 21 months). Nine patients were achieved bony union, the average healing time was 24 weeks. No plate rupture or screw loosening was found. According to the AOFAS Foot and Ankle Surgery evaluation system, 3 cases got excellent results, 4 good cases and 2 fair.

CONCLUSIONTrans-fibular anterior-lateral approach combined with external fixation for Gustilo III distal tibiofibula fractures can receive satisfactory reset, debond ankle joint eralier and imporove the clinical effects.

Adult ; Female ; Fibula ; Fracture Fixation ; methods ; Fractures, Bone ; diagnostic imaging ; surgery ; Humans ; Male ; Middle Aged ; Radiography ; Tibia ; Treatment Outcome

Objective:To investigate the change of biological characteristics after stable knockdown of CKLF-like MARVEL transmembrane domain containing 3 (CMTM3)expression in PC3 by lentivirus shRNA and to reveal new therapeutic targets.Methods:The research includes two groups:sh393 is the experimental group in which CMTM3 is knocked down in PC3 cell line;shN is the control group in which CMTM3 is negatively knocked down.The expression of CMTM3 was detected by Western blot.The mi-gration ability of PC3 after stable knockdown was detected by Transwell and Wound healing assay.The invasion ability of PC3 was detected by Matrigel assay.Results were obtained from at least three indivi-dual experiments.Results:The expression of CMTM3 in sh393 group is significant lower than shN group (0.004 0 ±0.000 4 vs.0.490 0 ±0.055 7,P <0.001)detected by Western blot.It also had statistical significance in Matrigel assays (248.6 ±4.5 vs.113.0 ±3.3),Transwell (203.6 ±1.9 vs.103.0 ± 1.2)and Wound healing assays (95.0 ±2.9 vs.33.0 ±1.5)that knockdown of CMTM3 promoted mi-gration,and invasion of PC3 cells in vitro (P <0.001).Conclusion:Negative correlation exists between the stable knockdown of CMTM3 and change of biological characteristics in PC3 cells,and knocking down CMTM3 affects migration,and invasion ability in PC3 cells.

OBJECTIVETo evaluate the effects of lentiviral vector-mediated RNA interfere gene Nogo receptor (NgR) of rat cortical neurons in repairing spinal cord injury.

METHODSThe recombinant-lentiviral vector with small inferring RNA siNgR199 which had been constructed was transfected into rat cortical neuron cells in vitro in 3 multiplicity of infection (MOI). The infection rate was determined with fluorescent microscope, and the target gene was detected by PCR analysis. Then, the recombinant was injected into the cortical motor area of the rats with severe spinal cord injury, and the saline was also injected into other rats with severe spinal cord injury as a match control. The functional recovery of the rats' hindlimb was assessed using BBB score and the nerve fiber of the injured region was observed by nerve tracing.

RESULTSThe rate of recombinant infecting rat cortical neuron in vitro exceeded 99%. PCR analysis confirmed that the effect of lentiviral vector-mediated RNA interfering gene NgR of rat cortical neurons in vitro was 61%. Although all rats with spinal cord injury were observed to have the hindlimb functional recovery, these rats injected with recombinant had better hindlimb functional recovery than others showing by more BBB score (P < 0.01). Moreover, it was found that some nerve fiber passed the injured spinal cord region of the rats which were injected with recombinant.

CONCLUSIONThe recombinant lentiviral vector with siNgR199 which had been constructed is able to promote the growth of nerve fiber and the functional recovery of the rats' hindlimb.

Animals ; Cells, Cultured ; Disease Models, Animal ; GPI-Linked Proteins ; Genetic Vectors ; Hindlimb ; physiopathology ; Lentivirus ; genetics ; Myelin Proteins ; Nerve Regeneration ; Neurons ; Nogo Receptor 1 ; RNA Interference ; Rats ; Rats, Sprague-Dawley ; Receptors, Cell Surface ; Receptors, Peptide ; genetics ; Spinal Cord Injuries ; genetics ; physiopathology ; therapy ; Spinal Cord Regeneration ; Transfection

BACKGROUND:Experimental studies have showed that puerarin has an obvious protective effect on osteoporosis in ovariectomized and orchiectomized mice. But the influence of puerarin in the molecular level in the process of osteoblast differentiation is seldom reported.
OBJECTIVE:To observe the effect of puerarin on the mRNA expression of alkaline phosphatase, bone sialoprotein, osteopontin and osteocalcin in osteoblasts.
METHODS:The MC3T3-E1 cells from mice cultured in vitro were randomly divided into control group, puerarin group (10-6 mol/L puerarin) and estradiol group (10-7 mol/L estradiol) to observe the effects of puerarin on the differentiation of osteoblasts. mRNA expression of alkaline phosphatase, bone sialoprotein, osteopontin and osteocalcin in MC3T3-E1 cells was determined using RT-PCR method.
RESULTS AND CONCLUSION:Puerarin and estradiol both could prolong the expression of alkaline phosphatase that reached the peak at 12 days. Puerarin and estradiol strengthened the mRNA expression of bone sialoprotein at 10 and 12 days, reduced expression of osteopontin at 5 and 12 days, and increased expression of osteocalcin at 10 and 12 days. These results reveal that puerarin can induce the differentiation of cultured osteoblasts by influencing osteoblast differentiation-related protein mRNA expressions, which may be one of the important molecular mechanisms of puerarin for prevention of osteoporosis.

OBJECTIVETo observe the short-term clinical results of the adjacent segment degeneration after the implantation of Coflex system at the interspinous space of adjacent segment to lumbar fusion.

METHODSFifty patients with grade III disc (Thompson MRI classification) of adjacent segment to lumbar fusion were included and divided alternately into two groups according to the order of hospitalization from January to November 2009. Coflex system was implanted at the interspinous space of adjacent segment to lumbar fusion in 25 patients as Coflex group, the other 25 patients did not have any surgical treatment were as control group. The followed up time was 2 years. Visual analogue scale (VAS) score of low back pain, changes of disc height and motion range of adjacent segment to lumbar fusion on X-ray imaging were evaluated by independent sample t-test or paired samples t-test.

RESULTSThere were 22 patients in Coflex group and 21 patients in control group were followed up 2 years post-operation. The difference of VAS score between two groups was no significance (P > 0.05). In Coflex group, the change of postoperative disc height was no significance (P > 0.05), but the motion range was significantly reduced to 47% of the preoperative value (t = 7.99, P < 0.05). In control group, the postoperative disc height decreased slightly, without significant difference to the preoperative value (P > 0.05). Between the two groups, no differences of the disc height and motion range were found before operation, but the differences of the disc height changes (t = 6.7, P < 0.05) and motion rang (t = -14.5, P < 0.05) were significant in 2 years post-operation. No complications such as Coflex system loosen, immigration and spinal process fracture were occurred.

CONCLUSIONSCoflex system can obviously limit the motion range and maintain the disc space height of adjacent segment to lumbar fusion, and prevent its degeneration in some degree.

Adult ; Female ; Follow-Up Studies ; Humans ; Internal Fixators ; Lumbar Vertebrae ; surgery ; Male ; Middle Aged ; Postoperative Complications ; prevention & control ; Prospective Studies ; Spinal Fusion ; adverse effects ; instrumentation ; methods ; Treatment Outcome

OBJECTIVETo investigate the relationship between the expression of vascular endothelial growth factor (VEGF) and fms-like tyrosine kinase (Flt-1) mRNA and tumor progression, microvessel density and survival time in gastric carcinoma.

METHODSIn situ hybridization and immunohistochemical techniques were used to detect the gene expression of VEGF, Flt-1 and CD34 in 118 gastric carcinoma specimens.

RESULTSIn situ hybridization revealed that positive expression rates of VEGF and Flt-1 mRNA in gastric carcinoma were 54.24% and 55.9% respectively. There was a significant correlation between the expression of VEGF and Flt-1 mRNA and growth pattern, the depth of tumor invasion, vessel invasion, lymph node and distant metastasis (P < 0.01). The mean tumor microvessel densities (MVD) in patients of stage T3-T4 or those with vessel invasion, lymph node and distant metastases were significantly higher than those of stage T1-T2 and without metastases (P < 0.01). MVD value was correlated with the expression levels of VEGF and Flt-1 mRNA (P < 0.01). The mean survival time and survival rate of patients with positive mRNA expression and mean MVD value >or=54.9/mm2 were significantly lower than those of patients with negative mRNA expression and mean MVD value < 54.9/mm2.

CONCLUSIONSThe expression of VEGF and Flt-1 can promote tumor angiogenesis and contribute to tumor invasion and metastasis in gastric carcinoma. VEGF and Flt-1 may serve as valuable indicators of biological behaviour, prognosis and target of gene therapy in gastric carcinoma.

Adult ; Aged ; Female ; Humans ; In Situ Hybridization ; Lymphatic Metastasis ; Male ; Middle Aged ; Neoplasm Metastasis ; Neoplasm Staging ; Prognosis ; RNA, Messenger ; genetics ; Stomach Neoplasms ; metabolism ; pathology ; Vascular Endothelial Growth Factor A ; metabolism ; Vascular Endothelial Growth Factor Receptor-1 ; metabolism

OBJECTIVEA strain of replication deficient recombinant adenvirus encoding fusion glycoprotein (F) of subgroup A human respiratory syncytial virus (RSV) was constructed and the expression of F was identified.

METHODSThe F gene was obtained from pGEM3zf-F with Xho I and Hind III, cloned into adenoviruse shuttle vector pShuttle-CMV,and then the resulting pShuttle-CMV/F was transformed into E. coli BJ5183/p with pAdeasy-1 to produce pre-adenoviral plasmid encoding F by homologous recombination. This resultant plasmid was linearized by digestion with Pac I and transfected into 293 packaging cells to generate FGAd-F. Finally, the expression of F protein was identified by Western Blot analysis.

RESULTSFGAd/F was successfully constructed, and the expression of RSV F protein was identified by Western Blot.

CONCLUSIONWe have obtained a strain of replication-defective adenovirus FGAd/F encoding RSV F protein, which can be used further to investigate its protective efficacy against RSV infection in vivo.

Adenoviridae ; genetics ; Adenoviridae Infections ; genetics ; Cloning, Molecular ; Gene Expression ; Genetic Vectors ; genetics ; metabolism ; Humans ; Recombinant Fusion Proteins ; genetics ; metabolism ; Respiratory Syncytial Virus, Human ; genetics ; Respiratory Syncytial Viruses ; genetics ; Viral Fusion Proteins ; genetics ; metabolism ; Virus Replication