Parachute mitral valve associated with reticular chordae tendineae in an adult: case report.

Background: Parachute mitral valve with reticular chordae tendineae is an extremely rare anomaly.

Case Presentation: We present a case of parachute mitral valve associated with distinctive reticular chordae tendineae in an adult. It was diagnosed from the echocardiogram.

Protective function of tocilizumab in human cardiac myocytes ischemia reperfusion injury.

Objective: To investigate the protective function of tocilizumab in human cardiac myocytes ischemia-reperfusion injury.

Methods: The human cardiac myocytes were treated by tocilizumab with different concentrations(1.0 mg/mL, 3.

[One-stop hybrid cardiac surgery for adults with complex heart disease].

Objective: To evaluate the efficacy and security of one-stop hybrid cardiac surgery for the treatment of adult patients with complex heart disease.

Methods: From November 2011 to March 2012, a total of 5 patients [4 male, mean age: (58.8 ± 14.

Facile and economical synthesis of an electrochromic copolymer for black based on electropolymerization of thiophene and 3,4-ethylenedioxythiophene.

We report the facile and economical synthesis of an electrochromic copolymer for black based on electrochemical copolymerization of thiophene and 3, 4-ethylenedioxythiophene in boron trifluoride diethyl etherate. The resultant copolymer presents multicolor electrochromism with reversible color change between drab color and blue black. Furthermore, in the polar state the resultant copolymer shows strong and broad absorption in the whole visible region and then exhibits black color.

Broadband metamaterial absorber based on coupling resistive frequency selective surface.

We report the design, fabrication, and measurement of a broadband metamaterial absorber, which consists of lossy frequency selective surface (FSS) and a metallic ground plane separated by a dielectric layer. The compact single unit cell of the FSS contains crisscross and fractal square patch which couple with each other. Both qualitative analysis by equivalent circuit and accurate numeric calculation show that the coupling between the crisscross and the fractal square patch can enhance the bandwidth with the reflectivity below -10dB in the frequency range of 2-18GHz by producing a third absorption null.

[Biological behaviors and chemosensitivity of NSCLC A549 cells after IGF-IR gene silencing by targeting RNAi in vitro].

Objective: To investigate the biological behaviors and chemosensitivity of non-small cell lung cancer (NSCLC) cell line A549 after IGF-IR gene silencing by RNA interference (RNAi) in vitro.

Methods: Two plasmids siRNA 1 and 2 expressing IGF-IR siRNA with human U6 promoter were constructed,and an unrelated siRNA was used as negative control. NSCLC A549 cells were transfected with sequence-specific siRNA or unrelated siRNA as control.

Evaluation of lung lesions using FDG gamma-camera PET equipped with a one-inch crystal.

The aim of this study was to evaluate the clinical value of 18-fluorodeoxyglucose (FDG) imaging with gamma-camera positron emission tomography (GCPET) equipped with a one-inch crystal for diagnosing lung lesions and determining the stage of non-small cell lung cancer (NSCLC) in regions with a high prevalence of inflammatory disease and tuberculosis. FDG-GCPET was used to examine 103 patients with suspected malignant lesions in the lung. The results of FDG-GCPET and conventional workup (CWU) including computed tomography (CT), ultrasonography and radionuclide bone scintigraphy were compared.

[Effect on synthesis of nitric oxide in myocardium by local cryoablation].

Objective: To study the effect on synthesis of nitric oxide in myocardium by local cryoablation and to investigate its mechanism.

Methods: Myocardium was cryoablated locally by a probe cooled to -60 degrees C and rewarmed by normal salt solution, nitric oxide and its synthesis enzyme were measured before and after cryoablation. L-arginine or methylene blue was added before and during cryoablation and the effect of these drugs on synthesis of nitric oxide was studied.