The effects of Panax notoginsen saponins ( PNGS ) on myocar- dial ischemia and reperfusion injury in conscious rabbit were studied with observation of changes in electrocardiogram (ECG), the activities of creatine phosphokinase ( CPK ) and lactate dehydrogen-ase ( LD ) and the size of ischemic area. 50 mg/kg and 100 mg/kg PNGS significantly decreased the activities of CPK and LD, and the abnormal changes of ECG during ischemic and reperfusion periods. Also, PNGS significantly reduced the size of myocardial ischemic area. These results suggest that PNGS have the protective effects on myocardial ischemia and reperfusion injury.

Objective To explore application value of combined detection of procalcitonin(PCT ) and high‐sensitivity C‐reactive protein (hs‐CRP) in clinical diagnosis of infectious diseases .Methods 162 cases of hospitalized patients with infectious diseases from June 2012 to December 2014 were enrolled in this study and divided into bacterial infection group(92 cases)and viral infection group (70 cases) according to the results of isolation and culture of pathogen and virus antibody detection .Other 100 cases of healthy individuals were selected as healthy control .The serum levels of PCT and hs‐CRP were detected by using immunochroma‐tography and immunofluorescence assay respectively and were statistically analysed .Results The serum levels of PCT and hs‐CRP in the bacterial infection group were higher than those in the healthy control group ,the differences were statistically significant (P<0 .05) .The serum levels of PCT and hs‐CRP in the viral infection group were higher than those in the healthy control group , but only the difference of hs‐CRP between the two groups was statistically significant(P<0 .05) .In patients with bacterial infection and viral infection ,the positive rates of combined detection of hs‐CRP and PCT were higher than single detection of hs‐CRP or PCT ,the differences were statistically significant(P<0 .05) .Conclusion PCT and hs‐CRP could be important serum markers of bacterial infections ,combined detection of the two markers have clinical significance for diagnosing infectious diseases and assessing its prognosis .

Objective To develop a multiplex polymerase chain reaction (PCR )method for detecting and genotyping moxifloxacin-resistant Clostridium difficile (C.difficile)isolates.Methods Specific PCR primers of slpA genotypes gr,hr,fr,gc08 and 078 were designed according to the differences of slpA nucleotide sequences in different C.difficile genotypes,and the house-keeping gene tpi specific PCR primers were also added for the construction of multiplex PCR method.Nine common intestinal normal and pathogenic strains were used to verify the specificity of slpA multiplex PCR for the detection of C.difficile.Forty-six C.difficile reference strains,belonging to 11 slpA genotypes,were used to verify the ability of the multiplex PCR method for dectecting and genotyping.Thirty-nine moxifloxacin-resistant clinical isolates were genotyped by the multiplex PCR,and its clinical value was evaluated by comparing with slpA sequence typing (slpA ST)method.Results All the 9 intestinal normal and pathogenic strains were negative when detected by the multiplex PCR.And tpi of 46 C. difficile reference strains were positive,and 36 strains belonging to slpA genotypes gr,hr,fr,gc08 and 078 were genotyped correctly.Other 10 strains which belonged to other 6 genotypes were non-typeable. Among 39 moxifloxacin-resistant clinical isolates,all were positive of tpi,and 32 isolates were typed correctly by the multiplex PCR method,including 22 slpA genotypes gc08,6 genotypes hr,2 genotypes fr,and 2 genotypes 078,which were consistent with slpA ST.However,7 isolates could not be typed by multiplex PCR,which were identified as other genotypes not included in the multiplex PCR by slpA ST. Conclusions A convenient and rapid multiplex PCR method for the detection of C.difficile is established successfully,which can distinguish among five slpA genotypes.slpA genotype gc08 is the common genotype of moxifloxacin-resistant clinical isolates.

Objective To investigate the genotype and production of toxin A and B of C .difficile clinical isolates collected from Sydney ,Australia .Methods Sixty‐eight C .difficile clinical isolates were collected from Westmead Hospital ,the University of Sydney ,which were genotyped by using PCR‐ribotyping ,and toxin A ,B coding gene tcdA ,tcdB were detected by using PCR meth‐od .Results Thirty‐one PCR‐ribotypes (RTs) were confirmed in the 68 C .difficile clinical isolates ,RT014 (19 .1% ) and RT002 (11 .8% ) were the common genotypes .Sixty‐four of 68 (94 .1% ) isolates contained tcdA and tcdB for toxin A and B .Conclusion The common prevalent PCR‐ribotypes of C .difficile were RT014 and RT002 in Sydney ,most of the C .difficile clinical isolates contained toxin A and B .

Objective To investigate the genotype and variance of toxin associated genes of moxifloxacin‐resistant Clostridium difficile clinical isolates in Sydney .Methods Twenty‐two moxifloxacin‐resistant Clostridium difficile clinical isolates were collected from Sydney ,which were genotyped by using sequencer capillary gel electrophoresis based PCR‐ribotyping ,and toxin A and B cod‐ing gene tcdA and tcdB ,and binary toxin coding gene cdtA and cdtB were detected by using PCR method .Toxin regulator gene tc‐dC was analyzed by using PCR‐sequencing ,and was aligned with reference sequence of VPI 10463 (Genbank accession number :X92982) ,and the tcdC sequence types of all 22 isolates were identified by using blast tool in NCBI .Results Twenty‐one isolates were genotyped as hypervirulent PCR‐ribotypes 027 (RT027) ,and one isolate as RT078 ;all 22 isolates contained tcdA and tcdB for toxin A and B and cdtA and cdtB for binary toxin (tcdA+ tcdB+ cdtA+ cdtB+ ) .The tcdC sequence types of the 21 RT027 i‐solates belong to sc1 ,and that of the one RT078 isolate belongs to WA39 .Compared with tcdC reference sequence of VPI 10463 ,a consecutive 18 bp deletion (nt341 to 379) and one nucleotide deletion at position 117 were found in the 21 RT027 isolates ,and a consecutive 39 bp deletion (nt330 to 368) and one nucleotide mutation at position 184(C> T) were found in the one RT078 isolate . Conclusion Clostridium difficile hypervirulent RT027 was the common moxifloxacin resistant genotype ;Clostridium difficile hy‐pervirulent RT027 and RT078 clinical isolates contained genes for toxin A and B and binary toxin ,and contained gene sequence mu‐tation in toxin regulator gene tcdC .

OBJECTIVETo explore the new mechanism of propranolol for treatment of hemangioma and the effects of propranolol on proliferation of hemangioma-derived mesenchymal stem cells ( Hem- MSCs).

METHODSWe isolated Hem-MSCs from hemangioma in the proliferating phase by their selective adhesion to plastic culture dishes. Immunofluorescence staining was used to examine the expression of marker antigens in Hem-MSCs. Human umbilical vein endothelial cells(HUVECs) were used as control. Indiuction of multi-lineage differentiation including osteogenesis and adipogeneis was performed with appropriate medium to identify the multi-lineage differentiation potential. MTT cell counting was used to observe the effects of different concentrations of propranolol on proliferation of Hem-MSCs.

RESULTSHem- MSCs were fibroblast-like morphology. All of them expressed vimentin, most expressed α-SMA,CD133, some expressed Glutl, and none of them expressed VEGF. Osteogenic, adipogenic differentiations of Hem- MSCs were induced successfully. Effects of low concentration of propranolol on proliferation of Hem-MSCs were not obvious, while high concentration of propranolol can inhibit the proliferation of Hem-MSCs.

CONCLUSIONSThe cells we isolated from hemangioma are Hem-MSCs. High concentration of propranolol can inhibit the proliferation of Hem-MSCs.

Adipogenesis ; Antigens ; metabolism ; Cell Differentiation ; Cell Proliferation ; drug effects ; Cells, Cultured ; Endothelium, Vascular ; cytology ; Fibroblasts ; cytology ; Hemangioma ; pathology ; Humans ; Mesenchymal Stromal Cells ; cytology ; drug effects ; metabolism ; Osteogenesis ; Propranolol ; pharmacology ; Umbilical Veins ; Vimentin ; metabolism

OBJECTIVETo investigate the safe and effective treatment for painful venous malformation (VM) in limbs.

METHOD(1) 97 cases with painful VM underwent MRI to detect the location of VM, as well as its size and structure, its relationship with the surrounding tissue. Statistical analysis was also performed. (2) The embolic agent (ethanol) was first injected to embolize the draining vessels of VM, then the Polidocanol plus Methotrexate (MTX) was followed to keep the embolization effect on VM. The therapeutic effect was observed and analyzed.

RESULTSFrom January 2010 to January 2012, 97 patients with painful VM were treated. A Spearman correlation analysis showed no significant correlation between symptoms of pain and lesion growth, volume, or MRI grades (P > 0.05). The lesions in the muscle space are more likely to have the symptoms of pain (P < 0.01), followed by the lesions in the muscle, then the lesions in the joint and subcutaneous tissue. The pain relieve percentage was 95.9% (93/97) after one time embolic sclerotherapy. No severe complication, such as distant embolization, nerve damage, or muscle atrophy happened. No pain reoccurrence happened after 0.5-1.5 years of follow-up period.

CONCLUSIONSThe treatment of embolic scleratherapy is minimal invasive, safe and effective for painful VM with stable results.

Ethanol ; therapeutic use ; Extremities ; blood supply ; Humans ; Methotrexate ; therapeutic use ; Pain ; etiology ; Pain Management ; methods ; Polyethylene Glycols ; therapeutic use ; Sclerosing Solutions ; therapeutic use ; Sclerotherapy ; methods ; Statistics, Nonparametric ; Vascular Malformations ; complications ; pathology ; therapy ; Veins ; abnormalities

Tissue expander is a device that induces tissue expansion and can be used to repair tissue defects. However, traditional dilators have the risk of exposure, skin infection, and poor blood flow in local tissue. Hydrogel is a kind of organic macromolecular polymer which can be expanded gradually by absorbing liquid and maintains a certain volume. The hydrogel expander can be applied to the tissue dilation. Compared with the traditional diilator, it can significantly reduce complications with better result. This review mainly summarizes the latest research progress of self-expanded hydrogel dilators in tissue expansion, and looks forward to its future application.

Tissue expander is a device that induces tissue expansion and can be used to repair tissue defects. However, traditional dilators have the risk of exposure, skin infection, and poor blood flow in local tissue. Hydrogel is a kind of organic macromolecular polymer which can be expanded gradually by absorbing liquid and maintains a certain volume. The hydrogel expander can be applied to the tissue dilation. Compared with the traditional diilator, it can significantly reduce complications with better result. This review mainly summarizes the latest research progress of self-expanded hydrogel dilators in tissue expansion, and looks forward to its future application.

Tissue expander is a device that induces tissue expansion and can be used to repair tissue defects. However, traditional dilators have the risk of exposure, skin infection, and poor blood flow in local tissue. Hydrogel is a kind of organic macromolecular polymer which can be expanded gradually by absorbing liquid and maintains a certain volume. The hydrogel expander can be applied to the tissue dilation. Compared with the traditional diilator, it can significantly reduce complications with better result. This review mainly summarizes the latest research progress of self-expanded hydrogel dilators in tissue expansion, and looks forward to its future application.