[Objective] This study was conducted to obtain tetraploid Pteroceltis tatar# nowii Maxim. with excellent ornamental traits. [Method] The stem apex growing points of Pteroceltis tatarinowii Maxim. were treated with dif...[Objective] This study was conducted to obtain tetraploid Pteroceltis tatar# nowii Maxim. with excellent ornamental traits. [Method] The stem apex growing points of Pteroceltis tatarinowii Maxim. were treated with different concentrations of colchicine solution for different hours to figure out a proper method and obtain poly- ploids. [Result] The most effective induction was obtained by treatment with 0.6%- 0.8% colchicine for 72 h with 34.2% mutation rate. Flow cytometry and chromosome observation of the stem apex growing point of P. tatarinowii Maxim. proved that the tetraploid plants were successfully obtained with chromosome number 2n=4x=36. [Conclusion] The result not only fills the blank of polyploid breeding of P. tatarinowii, but also provides an effective way to broaden the methods of cultivation of fast- growing, high-quality, disease-resilience, new varieties of Pteroceltis.展开更多
AIM: To access the frequency and level of apoptotic CD34+ cells isolated from the marrow fluid of patients with post-hepatitis cirrhosis. METHODS: The frequency of bone marrow CD34+ cells and apoptotic bone marrow CD3...AIM: To access the frequency and level of apoptotic CD34+ cells isolated from the marrow fluid of patients with post-hepatitis cirrhosis. METHODS: The frequency of bone marrow CD34+ cells and apoptotic bone marrow CD34+ cells in 31 inpatients with post-hepatitis cirrhosis (cirrhosis group), and 15 out-patients without liver or blood disorders (control group) was calculated by flow cytometry. Parameters were collected to evaluate liver functions of patients in cirrhosis group. RESULTS: The percentage of normal bone marrow CD34+ cells was 6.30% ± 2.48% and 1.87% ± 0.53% (t = 3.906, P < 0.01) while that of apoptotic marrowCD34+ cells was 15.00% ± 15.81% and 5.73% ± 1.57% (t = 2.367, P < 0.05) in cirrhosis and control groups, respectively. The percentage of apoptotic marrow CD34+ cells was 6.25% ± 3.30% and 20.92 ± 18.5% (t = 2.409, P < 0.05) in Child-Pugh A and Child-Pugh B + C cirrhotic patients, respectively. The percentage of late apoptotic marrow CD34+ cells was positively correlated with the total bilirubin and aspartate aminotransferase serum levels in patients with cirrhosis. CONCLUSION: The status of CD34+ marrow cells in cirrhotic patients may suggest that the ability of hematopoietic progenitor cells to transform into mature blood cells is impaired.展开更多
Objective:The aim of the study was to observe and compare the trend of T-lymphocyte subsets in the elder and adult esophageal carcinoma patients postoperatively. Methods: Forty-four esophageal carcinoma patients, clas...Objective:The aim of the study was to observe and compare the trend of T-lymphocyte subsets in the elder and adult esophageal carcinoma patients postoperatively. Methods: Forty-four esophageal carcinoma patients, classified as ASA physical status I-II, were divided into two groups. Twenty-two patients aged than 65 years were grouped as elder patient group, and the rest twenty-two patients, served as adult patient group, were younger than 60 years old. The jugular venous blood samples were collected before induction of anesthesia (T1) as baseline, after completion of surgery (T2), on the first, second and fifth postoperative days (T3, T4 and T5), respectively. The blood counts of CD3+, CD4+ and CD8+T-lymphocyte were measured by flow cytometer. Results: Compared with the baseline level, the blood CD3+, CD4+ and CD4/CD8 levels were significantly decreased immediately after surgery, on the first and second postoperative days in the two groups (P<0.01), which returned to baseline values on the fifth postoperative day (P>0.05). On the fifth postoperative day, CD3+, CD4+ and CD4/CD8 levels in adult group were significantly higher than those in elder group (P<0.05). Conclusion: The postoperative immune function in elder patients recovered more slowly than that in adult.展开更多
基金Supported by Agricultural Seed Breeding Program of Shandong Province in 2014([2014]96)
文摘[Objective] This study was conducted to obtain tetraploid Pteroceltis tatar# nowii Maxim. with excellent ornamental traits. [Method] The stem apex growing points of Pteroceltis tatarinowii Maxim. were treated with different concentrations of colchicine solution for different hours to figure out a proper method and obtain poly- ploids. [Result] The most effective induction was obtained by treatment with 0.6%- 0.8% colchicine for 72 h with 34.2% mutation rate. Flow cytometry and chromosome observation of the stem apex growing point of P. tatarinowii Maxim. proved that the tetraploid plants were successfully obtained with chromosome number 2n=4x=36. [Conclusion] The result not only fills the blank of polyploid breeding of P. tatarinowii, but also provides an effective way to broaden the methods of cultivation of fast- growing, high-quality, disease-resilience, new varieties of Pteroceltis.
基金Supported by National Natural Science Foundation of China,No.30670961
文摘AIM: To access the frequency and level of apoptotic CD34+ cells isolated from the marrow fluid of patients with post-hepatitis cirrhosis. METHODS: The frequency of bone marrow CD34+ cells and apoptotic bone marrow CD34+ cells in 31 inpatients with post-hepatitis cirrhosis (cirrhosis group), and 15 out-patients without liver or blood disorders (control group) was calculated by flow cytometry. Parameters were collected to evaluate liver functions of patients in cirrhosis group. RESULTS: The percentage of normal bone marrow CD34+ cells was 6.30% ± 2.48% and 1.87% ± 0.53% (t = 3.906, P < 0.01) while that of apoptotic marrowCD34+ cells was 15.00% ± 15.81% and 5.73% ± 1.57% (t = 2.367, P < 0.05) in cirrhosis and control groups, respectively. The percentage of apoptotic marrow CD34+ cells was 6.25% ± 3.30% and 20.92 ± 18.5% (t = 2.409, P < 0.05) in Child-Pugh A and Child-Pugh B + C cirrhotic patients, respectively. The percentage of late apoptotic marrow CD34+ cells was positively correlated with the total bilirubin and aspartate aminotransferase serum levels in patients with cirrhosis. CONCLUSION: The status of CD34+ marrow cells in cirrhotic patients may suggest that the ability of hematopoietic progenitor cells to transform into mature blood cells is impaired.
基金Supported by grants from Department of Public Health of Jiangsu Province (No.H200705)Jiangsu Province's Outstanding Medical Academic Leader Program (No.RC2002058)
文摘Objective:The aim of the study was to observe and compare the trend of T-lymphocyte subsets in the elder and adult esophageal carcinoma patients postoperatively. Methods: Forty-four esophageal carcinoma patients, classified as ASA physical status I-II, were divided into two groups. Twenty-two patients aged than 65 years were grouped as elder patient group, and the rest twenty-two patients, served as adult patient group, were younger than 60 years old. The jugular venous blood samples were collected before induction of anesthesia (T1) as baseline, after completion of surgery (T2), on the first, second and fifth postoperative days (T3, T4 and T5), respectively. The blood counts of CD3+, CD4+ and CD8+T-lymphocyte were measured by flow cytometer. Results: Compared with the baseline level, the blood CD3+, CD4+ and CD4/CD8 levels were significantly decreased immediately after surgery, on the first and second postoperative days in the two groups (P<0.01), which returned to baseline values on the fifth postoperative day (P>0.05). On the fifth postoperative day, CD3+, CD4+ and CD4/CD8 levels in adult group were significantly higher than those in elder group (P<0.05). Conclusion: The postoperative immune function in elder patients recovered more slowly than that in adult.
