ABSTRACT
Objective To explore the value of Ligasure vessel sealing system(LVSS)during resection of retroperitoneal tumor.Methods Group 1 including 32 cases were performed resection of retroperitoneal tumor with LVSS and electrosurgical seapel from Jun.2004 to Oct.2008.group 2 including 26 cases were done with electrosurgieal seapel from Jan.2001 to Jun.2004.Operating blood loss,operating time,iatrogenic injury,postoperative blood loss and hospital stay were compared between the two groups.Results There was no significant difference in hospital stay[(11.7±0.7)d vs.(12.3±1.4)d)]and iatrogenic injury(9.38%vs.16.00%)between two groups statistically(P＞0.05),but the intraoperative blood lose[(403.1±37.1)ml vs.(704.0±129.0)m1)s,postoperative blood loss[(131.5±18.4)ml vs.(214.8±29.2)ml)]and operating time[(166.5±8.9)min vs.(186.8±15.4)min]were less in group 1 than that in group 2(P＜0.05).Conclusion Ligasure vessel sealing system has advantages of safe coagulation,shortening operation time in resection of retroperitoneal tumor.
ABSTRACT
Human embryonic stem [ES] cells capture the imagination because after many months of proliferation in vitro, these versatile cells maintain the ability to form potentially any cell type that makes up the body;1 The proliferative and developmental potential of human ES cells promises an essentially unlimited supply of differentiated cells for basic research, drug discovery, and for transplantation therapies for diseases ranging from heart disease to Parkinson's disease to leukemia.2 However, human ES cells are derived from preimplantation embryos, making them highly controversial. Using information gleaned from over a decade of research with primate3-5 and human ES cells, including the identification of key signaling pathways that promote undifferentiated proliferation6-10 and the development of approaches for genetic modification,11-13 we have recently derived the first human induced pluripotent stem [iPS] cells, cells with the defining characteristics of ES cells, but derived from somatic, not embryonic material. Human iPS cells thus have all the advantages of ES cells, but avoid the ethical controversy
ABSTRACT
Objective: To investigate the effect of vitamin B12 on the growth and hemopoiesis of broilers. Methods: The Arbor Acres broilers were fed the experimental diets with different doses of vitamin B12 0.00, 0.008, 0.016, 0.024 mg/kg for 3 weeks. The body weight gain and hematologic indices of the broilers were measured. Results: Vitamin B12 deficiency in the diet could depress the body weight gain and feed conversion ratio of the broilers, decrease the amount of red blood cell and hemoglobin, enlarge the volume of red blood cell, increase the content of each cell hemoglobin, reduce platelet in blood. While 0.008 mg/kg vitamin B12 was added in the experimental diets, the body weight gain and feed conversion ratio of the broilers increased markedly. Furthermore, when 0.016mg/kg vitamin B12 was added to the diet, the number of the red blood cell and the content of hemoglobin of the broilers increased significantly, and the shape and volume of the red blood cell became ordinary. There were significants interrelations between BWG,RBC,Hb,PCV,PLT,MCV,MCH of the broilers and the addition of vitamin B12 in the diet. Conclusion: Vitamin B12 deficiency could result in the megaloblastic animia. 0.02-0.03 mg vitamin B12 per kilo diet was required to maintain the growth and normal hemopoiesis of the broilers.