Biomedical subjects

Xiao-Ming Zou

Publications and source records attributed to Xiao-Ming Zou.

4 recordsLinked to original sources

PubMed2006

[Study on the extraction of the active component in Atractylode macrocephala with ultrasonic wave technology optimized by the response surface method].

OBJECTIVE: To create Atractylode macrocephala inspissation decoction pieces. The effect of ultrasonic wave on extraction of the active components in A. macrocephala was studied in a water solution. METHOD: The factors including the ratio of material to liquid, ultrasonic power, ultrasonic time, soaking time, particle size etc, were studied. The best extraction method was found through the response surface method. RESULT: The best extraction method was found as follows: the granularity of material 0.1 mm, the repetition times of ultrasonic process 3 times, the soaking time before the ultrasonic process 30 min, the ratio of liquid to material 10:1, the soaking time after the ultrasonic process 2.6 h, the time of the ultrasonic wave 15.5 min, the power of the ultrasonic wave 531 W, the rate of reservation of active components 88.5%, the rate of inspissation 1.6. CONCLUSION: The ultrasonic wave can used in the extraction of the active components in A. macrocephala and a model equation that can be used to predict the experiment was get through the response surface method.

Atractylodes↗

PubMed2005

[Development study on model WY multi-functional thoracic cavity closed drainage system].

Based on the improved design of the existing thoracic cavity closed drainage system, a new multi-functional device is developed and is described here in detail. The device is more convenient and more efficient than the existing system. Besides, it has a function of autotransfusion. Animal experimental results show that it has attained the goal of the improved design.

Drainage↗

PubMed2002

[Echocardiographical features during the rejection free period after heart transplantation: report of one case].

OBJECTIVE: To study the echocardiographic features during the period free of acute allograft rejection after heart transplantation by monitoring one patient within one year after heart transplantation. METHODS: The dimension of atrial and ventricular, interventricular septal and ventricular wall thickness, blood flow pattern through the mitral and tricuspid valves, left ventricular muscle weight (LVMW) and LVMW index during different periods were measured by echocardiography, and all these data were compared with those of the donor before operation. RESULTS: The patient recovered well without any signs of acute rejection. Echocardiography revealed that the dimension of right atrial, left and right ventriculars decreased significantly while left atrial showed significant increase, with obvious increase in the interventricular septal and ventricular wall thickness. LVMW and LVMW index were also significantly increased. The peaks E-and A.wave velocifies of the mitral and tricuspid E peak flow velocity decreased significantly, while the A peak flow velocity of the tricuspid did not undergo any significant changes. Mitral back flow occurred 4 months after the operation and tricuspid back flow persisted after operation. CONCLUSIONS: The changes of morphology, structure and function of the transplanted heart during periods without rejection are to some extent specific to this special phase, when some of these changes are similar to those during early acute rejection, and correct diagnosis relies on endo-myocardial biopsy.

Adult↗

PubMed2002

[Surgical treatment of ascending aortic aneurysm by Bentall's procedure: report of 14 cases].

OBJECTIVE: To review our experience in surgical treatment of ascending aortic aneurysm (AAA) with aortic insufficiency in 14 cases of by Bentall's procedure. METHODS AND RESULTS: All the patients underwent replacement of the ascending aorta and aortic valve with composite valved vascular prosthesis and received direct implantation of the aortic graft of the coronary orifices (Bentall's procedure) with satisfactory results. Five patients had ascending aortic dissection and 4 had typical Marfan's syndrome. All the patients suffered severe aortic insufficiency while 2 had mitral insufficiency. Coronary orifices were implanted in situ in 13 cases while in 1 case, Cabrol's method was adopted. No death occurred during the surgery and in the subsequent follow-up, and all the patients had good recovery. CONCLUSION: Bentall's procedure can be effective in the treatment of AAA with aortic insufficiency.

Adult↗