Objective To explore the features of echocardiographic partial anomalous pulmonary venous connection (PAPVC) with intact interatrial septum. Methods Three patients with intact interatrial septum of PAPVC were examined by transthoracic echocardiography (TTE) using HP Sonos 5500 color Doppler machine. Imaging was performed at a frequency of 2～4 MHz, or 12 MHz. Results Accuracy of the diagnosis by TTE was 100 %. The patients had isolated PAPVC. The connection site was the coronary sinus in two, right atrium in one. There was a single anomalous connection vein in one patient, two in the others. Apparent right heart dilation was found in all the patients. Conclusion Unexplained right heart volume overload that was examined by TTE should have a high-degree suspicion for PAPVC. The origin site of pulmonary veins and their flow should be examined routinely. Transesophageal echocardiography (TEE) and TTE are complementary in the diagnosis.

BACKGROUND:Previous experiments have shown that improved platelet-rich plasma can promote the proliferation of human dental pulp cells in a concentration-dependent manner, particularly when the concentration is 10%.
OBJECTIVE:To investigate the effect of platelet-rich plasma at different concentrations on the proliferation and immunogenicity of human bone marrow mesenchymal stem cells.
METHODS:Human bone marrow mesenchymal stem cells from healthy donors were cultured and passaged for 3-4 passages, identified by flow cytometry and differentiation inductions. Platelet-rich plasma samples which were manufactured from the venous blood of the same donor were used for culturing human bone marrow mesenchymal stem cells. The proliferation of human bone marrow mesenchymal stem cells was measured by cellcounting kit-8 method and the growth curves were drawn. The most suitable concentration of platelet-rich plasma was selected to culture human bone marrow mesenchymal stem cells for three generations and the Stro-1 expression rate on the surface of human bone marrow mesenchymal stem cells was determined through flow cytometry.
RESULTS AND CONCLUSION:Platelet-rich plasma at the concentration of 5%-10%evidently promoted the proliferation of human bone marrow mesenchymal stem cells on the 6th and 8th days. The most effective concentration to promote the proliferation was 10%. Platelet-rich plasma at the concentration of 10%stil promoted the proliferation of human bone marrow mesenchymal stem cells on the 10th day, and maintained a better immunogenicity of human bone marrow mesenchymal stem cells compared to the control group. These findings indicate that platelet-rich plasma can promote the proliferation of human bone marrow mesenchymal stem cells in a concentration-dependent manner, and 10%platelet-rich plasma is better to maintain the immunogenicity of human bone marrow mesenchymal stem cells.

Objective To observe the effects of the Dachaihu decoction on intra-abdominal pressure in severe acute pancreatitis. Methods 70 patients with SAP from China-Japan Friendship Hospital were randomly divided into two groups. 35 patients in a conventional treatment group were treated with conventional treatment of severe acute pancreatitis, and 35 patients in a Dachaihu decoction treatment group were treated with the decoction through nasogastric tube based on conventional treatment. The changes of intra-abdominal pressure and the morbidity of IAH and ACS in both groups were observed in acute stage. Results The intra-abdominal pressure in both groups increased. But the pressure in the Dachaihu decoction treatment group (13.31 ± 4.42 mmHg, 13.02 ± 5.23 mmHg, 12.35 ± 3.34 mmHg, 11.26 ± 4.46 mmHg, 9.89 ± 3.44 mmHg) was lower than the conventional treatment group (16.89 ± 5.71 mmHg, 17.52 ± 3.37 mmHg, 16.21 ± 2.15 mmHg, 14.57 ± 5.56 mmHg, 12.11 ± 1.28 mmHg) from the third day on (P<0.05). And the morbidity of intra-abdominal hypertension and abdominal compartment syndrome in the Dachaihu decoction treatment group were lower than the conventional treatment group in the whole acut stage (40%vs. 8.75%).The differences between two groups were statistically significant (P<0.05). Conclusion The Dachaihu decoction may significantly reduce the intra-abdominal pressure and the morbidity of intra-abdominal hypertension and abdominal compartment syndrome among patients with severe acute pancreatitis.

Two pairs of primer targeting to the genes encoding the major outer membrane protein (MOMP) and the polymorphic membrane protein (PMP) of Chlamydophila psittaci (Cps) designed and used in the fluorescent quantitative PCR assay in the detection of this microorganism were compared in the their sensitivity and specificity.It was demonstrated that both pairs of primer could be used successfully to detect the presence of Cps of the epidemic strains isolated in China.The specificity of PMP primer used was higher than that of MOMP primer. In case of high target concentration in samples, the sensitivity of the former was also superior to that of the latter, but the amplification efficiency of the former was lower than that of the latter. The MOMP primer seemed to be more suitable to detect Cps by using the real-time quantitative assay.As demonstrated by the real-time quantitative PCR assay, great difference in the genomic copy numbers of the PMP gene existed in the epidemic strains of Cps isolated in China.

Animals ; Blood Gas Analysis ; Brain Ischemia ; complications ; metabolism ; physiopathology ; Lung Injury ; etiology ; metabolism ; physiopathology ; Male ; Pyrazines ; pharmacology ; Rats ; Rats, Wistar ; Reperfusion Injury ; complications ; metabolism ; physiopathology

Animals ; Extremities ; blood supply ; Ischemia ; metabolism ; Male ; Myocardial Reperfusion Injury ; metabolism ; Nitric Oxide ; blood ; Oxidative Stress ; Rats ; Rats, Wistar

Communicable Diseases ; diagnosis ; Humans ; Influenza A Virus, H1N1 Subtype ; genetics ; Influenza, Human ; diagnosis ; virology ; Microspheres ; Nucleic Acid Amplification Techniques ; methods ; Nucleic Acid Hybridization ; methods ; Oligonucleotide Probes ; genetics ; Polymerase Chain Reaction ; methods ; Sensitivity and Specificity

Animals ; Apoptosis ; Extremities ; blood supply ; Kidney ; pathology ; Male ; Nitric Oxide ; physiology ; Random Allocation ; Rats ; Rats, Wistar ; Reperfusion Injury ; pathology ; physiopathology

Human bocavirus (HBoV) 1-4 have been detected both in respiratory and stool samples since the first HBoV was discovered in 2005. HBoV-1 is mostly associated with respiratory infection, while HBoV 2-4 are usually associated with intestinal tract infection. A variety of signs and symptoms have been described in patients with HBoV infection, including cough, wheezing, pneumonia, and diarrhea, but the research on pathogenic mechanism of HBoV is limited because HBoV cannot be cultured in vitro due to the lack of appropriate host cells. Three-dimensional epithelial cell culture, reverse genetics, and viral metagenomics are identified as novel tools that may promote the research on pathogenic mechanism of HBoV and the discovery of new viruses. This review summaries currently available diagnostic approaches such as electron microscopy, cell culture, PCR, and immunoassay in order to provide a method reference for indepth research on HBoV.
Animals ; Human bocavirus ; genetics ; growth & development ; isolation & purification ; pathogenicity ; Humans ; Parvoviridae Infections ; diagnosis ; virology ; Viral Proteins ; genetics ; metabolism ; Virology ; methods ; Virulence ; Virus Cultivation

To explore the anti-atherosclerotic mechanism of estrogen and especially observe the effect of estradiol on the content of cholesterol in J774a.1 mouse mononuclear/macrophage-derived foam cells which were incubated with oxidized low-density lipoproteins (ox-LDL). J774a.1 mouse mononuclear/macrophages were incubated with ox-LDL or with both ox-LDL and estradiol (1, 0.1 or 0.01 micromol x L(-1)). Oil red O staining was used to observe the formation of foam cells, and cholesterol oxidase fluorometric was used to determine the content of cellular cholesterol content. Western blotting and RTFQ-PCR were used to observe the expressions of scavenger receptor class B type I (SR-B I ) in J774a.1 foam cells. Compared with the control cells, J774a.1 mouse mononuclear/macrophage-derived foam cells showed significantly increased contents of total cholesterol and cholesterol ester (P < 0.001) and decreased SR-B I mRNA expression (P < 0.01). Estradiol treatment significantly lowered the contents of total cholesterol and cholesterol ester (P < 0.05), and increased SR-B I protein and mRNA expression (P < 0.01) in the foam cells in a dose-dependent manner. Estradiol can inhibit the formation of mononuclear/macrophage-derived foam cells by decreasing the contents of total cholesterol and cholesterol ester and up-regulating the expression of SR-B I in the foam cells.
Animals ; Cell Line ; Cholesterol ; metabolism ; Cholesterol Esters ; metabolism ; Estradiol ; pharmacology ; Foam Cells ; cytology ; metabolism ; Lipoproteins, LDL ; metabolism ; Macrophages ; drug effects ; metabolism ; Mice ; Scavenger Receptors, Class B ; metabolism