1.Establishment of Analysis Method for Detection of Petroleum Degrading Genes AlkB and Nah in Contaminated Soil and Its Application
Qinglong LIU ; Jingchun TANG ; Xiaotong WAN
Chinese Journal of Analytical Chemistry 2014;(9):1348-1353
SYBR Green I Real Time-qPCR method was developed to quantify the numbers of copyies of AlkB ( alkanes degradation gene) and Nah ( naphthalene dioxygenase degradation gene) functional degradation gene corresponding to alkanes and aromatic hydrocarbons degradation. Two pairs of primers AlkBf/AlkBr and Nahf/Nahr were designed for AlkB and Nah amplification respectively, according to the nucleotide sequences of related degradation microorganisms published in GenBank. The purified recovery products of traditional PCR were combined with pEASY-T1 vectors and transformed in competent cells to amplify. The recombinant plasmids were extracted and used as positive templates to create standard curve through gradient dilution. The conditions for the real time PCR were as the follows: the final concentration of forward and reverse primers were 0. 2 μmol/L, 2×TransStart Top Green qPCR SuperMix, and the annealing temperatures of AlkB and Nah PCR were 50℃ and 57℃, respectively. The method showed a sensitivity of 100 times higher than that of the traditional PCR method and good repeatability. The numbers of copies of AlkB in three functional regions of an oilfield indicated that oil producing zone with serious oil pollution had the highest AlkB copy numbers, and residential zone with lighter oil pollution had the lowest AlkB copy numbers. Nah degradation gene distribution was more uniform.
2.Hyperbilirubinemia in adult patients who undergo cardiotomy with extracorporeal membrane oxygenation support
Xiaolei YAN ; Shijie JIA ; Fei CHEN ; Jiuhe WAN ; Ming JIA ; Xu MENG ; Xiaotong HOU
Chinese Journal of Thoracic and Cardiovascular Surgery 2010;26(2):109-112
Objective The incidence of post-operative hyperbilimbinemia, which is associated with poor outcomes in patients, was reported to be increased in recent years though it has been a rare complication for cardiac operations. Post-opera-tive impairment of liver function is highlighted. We evaluated the incidence and prognosis of post-operative hyperbiliruhinemia in adult patients who underwent cardiotomy with extracorporeal membrane oxygenation (ECMO) support. Methods Sixty-five adult patients who had received ECMO support after cardiac surgery from 2004 to 2008 were enrolled and evaluated retrospec-tively. Post-oporative hypethilirubinemia was defined as the serum level of the total bilirubin more than 51.3 μmol/L during postoperative period. Demographic and clinical data included gender, age, types of surgery, perioperative hemodynamic param-eters, biochemical variables, duration of the ventilation support, ICU stay and outcomes. Results The mean age of the pa-tients was (50.1 ± 13.9) years, forty-six patients(70.8%) were male. The main cardiac procedures were heart transplanta-tion for 9 patients, coronary artery bypass grafting and/or valve operations for 47 patients, congenital heart disease correction for 4 patients and other operations for 5 patients. Among all patients, fifty-one patients(78.5%) were weaned from ECMO succeas-fully and thirty-thrce patients were discharged from hospital. The overall mortality rate was 49.2%. Overall incidence of post-operative hyperbilirubinemia was 55.4%. In patients with postoperative hyperbilirubinemia, the mean peak value for serum to-tal bilirubin was 104.8 (68.5-156.7) μmol/l. The hospital mortality in the hyperbilirubinemia group was significantly higher than that in the non-hyperbilirubinemia group(66.7% vs. 27.6%, P <0.01). Moreover, postoperative hypethilirubinemia (adds ratio = 3. 895, 95% confidence interval, 1.088 - 13.947 ; P = 0.037) and SOFA score (odds ratio = 1.214, 95% confidence interval, 0.987 - 1.494, P = 0.047) and APACHE Ⅲ score (odds ratio = 1.096, 95% confidence interval, 1.028 - 1.169 ; P = 0.004) were associated with hospital mortality after adjusting for preoperative levels of the total bilirubin, direct bilirubin, gender and age. Conclusion Postoperative hyperbilirubinemia is one of the complications in adult patients who undergo cardiotomy with ECMO support, and is associated with increased hospital mortality.
3.Acute renal failure after cardiac surgery in intuit in adult patients : evaluation of the ARF-specific scoring systems
Xiaolei YAN ; Xiaotong HOU ; Ying CHE ; Yong YANG ; Jiuhe WAN ; Ming JIA ; Shijie JIA
Chinese Journal of Thoracic and Cardiovascular Surgery 2009;25(3):168-171
Objective The aim of this study was to evaluate of adilty of two acute renal failure-specific scoring systenms (the classification by Bellome et al and the AKIN criteria) for predicting hospital mortality after cardiac surgery in adult patients. Methods Between October 1 st 2006 to Decemjber 31 st 2006, 509 adult patients who ungerwent coronary artery bypass grafting (CABG) and/ or valve operation were enrolled in this study. The medical data collection included gender, age, types of operation, perioperative he- modynamic parameters, urine output, biochemical parameters and outcome. Renal function was assessed daily according to the classi- ficatinn by Bellomo and the AKIN criteria, respectively. As references, Acure Physiology and Chronic Health Evaluation(APACHE) Ⅱ and Sepsis-related Organ Failure Assessment (SOFA) score were also calculated. Resuits Three hundred and forty-one patients were male (67.0%), and 168 were female (33.0%), mean age was (56.2±12.0) years old. Tnree hundred and nine patieats un- derwent CABG, 182 underwent valve operation and 18 underwent CABG plus valve operation, Mean duration of ventilation support was (20.4±17.7) houra, and the ICU stay was (1.4±1.0) days. Postoperative hospital stay was (13.8±9.1) days. According to the classification by Bellomo., the highest in-hospital mortality was 52.9% in ARFS group. Mahiplicatinn of in-hospital morality rate was abserved (X2 for trend, P<0.01) in 0.4% (non-ARF), 1.2% (stage 1), 12.0% (stal~ 2) and 32.4% (stage 3) of pa- tients based on the AKIN criteria. By applying the area under the receiver operating characteristic ourve, the classification by Bellomo and the AKIN criteria had good discriminative power. Furthering, multivariate logistic regression analysis verified that the Odds Ratio of the AKIN criteria was 5.478 (P =0.028, 95% Confidence Interval 1.027- 24.856), after adjusting for gender and age. Con- clusion Analytical data confinned good discriminative power of both the AKIN criteria and the classification by Bellomo for predicting hospital mortality of adult postoperative patient with ARF.
4.Evaluation of acute kidney injury network criteria in post-cardiosurgery elderly patients with acute kidney injury
Xiaolei YAN ; Xiaotong HOU ; Yong YANG ; Ping DONG ; Ming JIA ; Jiuhe WAN ; Shijie JIA
Chinese Journal of Geriatrics 2010;29(1):24-26
Objective To evaluate the value of acute kidney injury network (AKIN) criteria for predicting hospital mortality in post-cardiosurgery elderly patients. Methods From October 2006 to January 2007, the elderly patients who underwent coronary artery bypass grafting or valve replacement operation were enrolled in this study. The medical data included gender, age, operation type, perioperative hemodynamic parameters, urine output, biochemical parameters and outcome. Renal function was assessed according to the AKIN criteria, and severity of illness was determined after surgery by calculating Acute Physiology and Chronic Health Evaluation Ⅱ (APACHE Ⅱ ) score. Results A total of 225 patients underwent cardiac surgery during this period, 169 patients were male (75. 1%), while 56 were female (24. 9%), mean age was (66. 7±5. 0) years old. The overall hospital mortality rate was 5.8% (13/225). According to AKIN criteria, there were 125 patients with acute kidney injury (55.6%), and the hospital mortality of stage 1, 2 and 3 patients were 2. l%(2/96), 9. 1% (1/11) and 50. 0% (9/18) respectively. A significant increase was observed in mortality based on AKIN criteria (P<0. 01). By applying the area under the receiver operating characteristic curve, the AKIN criteria had a good discriminative power. Conclusions Both the incidence and mortality rate of acute kidney injury in the post-cardiosurgery elderly patients are high, the AKIN criteria is a simple and valuable method with a good prognostic capability for evaluating acute kidney injury.
5.Relationship between plasma adiponectin, visfatin, leptin, and resistin levels and the onset of colonic polyps in prediabetes
Lili DENG ; Xiaotong ZHAO ; Mingwei CHEN ; Hua JI ; Qunhui ZHANG ; Lijuan WAN ; Ruofei CHEN ; Yalei WANG
Chinese Journal of Endocrinology and Metabolism 2018;34(12):997-1002
Objective To explore the relationship between plasma adiponectin, visfatin, leptin, and resistin levels, and the onset of colonic polyps in prediabetes subjects. Methods A total of 468 prediabetes subjects, who received colonoscopy examination, were enrolled in this study, including 248 cases of colon polyps (polyps group with prediabetes) and 220 cases without colonic mucosal lesions ( polyps-free group with prediabetes). According to the clinical characteristics of colonic polyps, colonic polyps patients with prediabetes were subdivided into single polyp group, multiple polyps group, low-risk polyps group, and high-risk polyps group, respectively. In addition, 108 subjects with normal glucose tolerance, who were matched with prediabetes subjects on gender and age, were selected as control group, and 46 cases of them were refered to polyps group with normal glucose tolerance and 62 cases were refered to polyps-free group with normal glucose. Plasma adiponectin, visfatin, leptin, and resistin levels were measured in all subjects, and related risk factors of colonic polyps in prediabetes patients were analyzed. Results Not only in normal glucose tolerance subjects, but also in prediabetes subjects, plasma visfatin levels in polyps group were significantly higher than those in polyps-free group (P<0.05), and plasma adiponectin levels were significantly lower than those in polyps-free group [normal glucose tolerance (9.8±4.8 vs 13.3±3.9)mg/L, P<0.05; prediabetes (5.6 ± 3.7 vs 9.2 ± 4.4)mg/L, P<0.01], respectively. However, no significant difference in the plasma leptin and resistin levels were observed between polyps-free group and polyps group ( both P>0. 05), respectively. In addition, in prediabetes subjects, plasma visfatin levels increased (P<0.05) and adiponectin levels decreased significantly [(4.3 ± 2.6 vs 6.7 ± 3.9) mg/L, P<0.05] in multiple polyps group than in single polyp group. Nevertheless, there were no significant differences in plasma leptin and resistin levels between two groups (both P>0.05). Moreover, plasma adiponectin levels decreased significantly in high-risk polyps group with prediabetes than in low-risk polyps group with prediabetes[(3.7±2.9vs7.4±3.5)mg/L,P<0.05].Meanwhile,noneofplasmavisfatin,leptin,andresistinlevels had shown significant difference between two groups (all P>0.05). The multivariate logistic regression analysis found that adiponectin was an independent protective factor for colon polyps, multiple colon polyps and high-risk colon polyps. Conclusion The changes of plasma adiponectin levels might be associated with onset of colonic polyps in prediabetes.
6.Analysis of treatment response and prognostic factors of T-LBL patients treated with pediatric-like ALL therapy following HSCT
Haotian WANG ; Yan DONG ; Xiaotong GAO ; Zhuo WAN ; Yingxin ZHAO ; Yamei LIU ; Li LIU
Chinese Journal of Hematology 2020;41(5):387-393
Objective:To discuss the effect and prognostic factors of hematopoietic stem cell transplantation (HSCT) in patients with T-lymphoblastic lymphoma (T-LBL) who have achieved complete remission (CR) and partial response (PR) after pediatric-like acute lymphoblastic leukemia (ALL) therapy.Methods:Basic information and clinical data of patients with T-LBL treated in the hematologic center of Tangdu Hospital from January 2013 to January 2017 were collected, and the patients who achieved CR/PR were included in this study and retrospectively analyzed.Results:①A total of 48 patients received pediatric-like ALL chemotherapy, among which 39 patients achieved CR and 9 patients achieved PR after 2 courses of induction chemotherapy. Auto-HSCT was performed in 14 cases and allo-HSCT in 7 cases, and the hematopoietic function of all 21 patients was successfully reconstructed after transplantation. ②The follow-up period was 9-61 months, with a median of 31 months. The 3-year overall survival (OS) rate was 61.0% (95% CI 53.7%-68.3%) , and the 3-year progression-free survival (PFS) rate was 54.8% (95% CI 47.1%-62.2%) . ③The 3-year OS rate of transplantation group was 84.7%, and that of non-transplantation group was 42.8%. Significant difference of OS rate was observed between the 2 groups ( P=0.006) . The 3-year PFS rate was 75.4% in transplantation group and 38.9% in non-transplantation group. Significant difference of the PFS rate between the two groups was observed ( P=0.004) . ④No difference of OS rate between auto-HSCT and allo-HSCT groups was observed ( P=0.320) , same as the PFS rate ( P=0.597) . ⑤Among the prognostic factors, bone marrow invasion and no HSCT are independent risk factors affecting the long-term prognosis of patients. The mortality rate of patients with bone marrow invasion is about 5.804 times higher than that of patients without bone marrow invasion, and the mortality rate of patients with HSCT is about 5.871 times higher than that of patients without HSCT. Conclusion:T-LBL received pediatric-like ALL chemotherapy and HSCT has definite curative effect with lower transplant-related mortality and more safety. In the transplantation group, there is no significant difference of OS and PFS rates between patients receiving auto-HSCT and patients receiving allo-HSCT. Moreover, bone marrow invasion and no HSCT are both independent risk factors for long-term prognosis of patients.
7.Evaluation of the residual risk of HIV transmission through blood transfusion after nucleic acid testing in blood centers in China
Yanhong WAN ; Zhijun ZHEN ; Ying LI ; Yanqin HE ; Feng YAN ; Dongmin ZHANG ; Shouguang XU ; Nan WU ; Kejin LI ; Youhua SHEN ; Lin BAO ; Xiaoli CAO ; Xia DU ; Jianling ZHONG ; Weiping FENG ; Peng WANG ; Ying LI ; Dong GUO ; Yang LIU ; Li LI ; Xinyan FAN ; Junbing ZHOU ; Xiaotong SUN ; Lijun ZHOU ; Liping NENG ; Bing JU ; Fang WANG ; Yan QIU
Chinese Journal of Experimental and Clinical Virology 2023;37(4):361-366
Objective:To evaluate the residual risk (RR) of transfusion transmitted HIV (TT-HIV) after the implementation of nucleic acid amplification test (NAT) in blood screening test among blood centers in China.Methods:The data of blood donors and HIV infection markers from 2017 to 2020 were collected from 28 blood centers via the Platform of Comparison of blood establishments Practice in Chinese Mainland. The new infection rate/window period mathematical model was used for two types of blood screening strategies, namely, two rounds ELISA plus individual NAT take turn with pooling NAT (2ELISA+ ID-NAT/MP-NAT) and two ELISA plus one round pooling NAT (2ELISA+ MP-NAT), and the RR of HIV infection was estimated also based on first donors (FDs) and repeated donors (RDs) in different blood donation years. T-test analyses were conducted for comparing TT HIV RR among FDs and RDs in different blood donation years with two blood screening strategies, and the variation trend of RR in HIV test was observed.Results:From 2017 to 2020, the RR of FDs in 2ELISA+ ID-NAT/MP-NAT blood screening strategy was 2.869/10 6 person-year, 3.795/10 6 persons-year, 3.879/10 6 person-year, and 2.890/10 6 person-year respectively. The RR of RDs was 1.797/10 6 person-year, 1.502/10 6 person-year, 1.857/10 6 person-year, and 1.483/10 6 person-year respectively. Significant difference exists between RR of FDs and RDs, with F=9.898 and p<0.05. In 2ELISA+ MP-NAT strategy, the RR of FDs was 3.508/10 6 person-year, 1.868/10 6 person-year, 2.204/10 6 person-year, and 1.765/10 6 person-year respectively. The RR of RDs was 0.948/10 6 person-year, 0.926/10 6 person-year, 0.748/10 6 person-year, and 0.682/10 6 person-year respectively. Statistical difference existed between RR of FDs and RDs, with F=17.126 and P<0.05. There was no significant difference between the RR of FDs in these two strategies with F=3.493 and P>0.05, while there was a difference between the RR of RDs in these two strategies with F=24.516 and P<0.05, and a difference between the RR of total donors (TDs) in these two strategies F=20.216 and P<0.05. Conclusions:The RR of TT HIV significantly decreased after the introduction of NAT into blood test among blood centers in China. There were some differences in the RR of HIV testing among different blood screening strategies. There could be significant differences in the RR of HIV testing among different groups of blood donors. Compared with FDs, RDs is the low risk group for HIV.
8.Recommendations for prescription review of antipyretic-analgesics in symptomatic treatment of children with fever
Xiaohui LIU ; Xing JI ; Lihua HU ; Yuntao JIA ; Huajun SUN ; Qinghong LU ; Shengnan ZHANG ; Ruiling ZHAO ; Shunguo ZHANG ; Yanyan SUN ; Meixing YAN ; Lina HAO ; Heping CAI ; Jing XU ; Zengyan ZHU ; Hua XU ; Jing MIAO ; Xiaotong LU ; Zebin CHEN ; Hua CHENG ; Yunzhu LIN ; Ruijie CHEN ; Xin ZHAO ; Zhenguo LIU ; Junli ZHANG ; Yuwu JIANG ; Chaomin WAN ; Gen LU ; Hengmiao GAO ; Ju YIN ; Kunling SHEN ; Baoping XU ; Xiaoling WANG
Chinese Journal of Applied Clinical Pediatrics 2022;37(9):653-659
Antipyretic-analgesics are currently one of the most prescribed drugs in children.The clinical application of antipyretic-analgesics for children in our country still have irrational phenomenon, which affects the therapeutic effect and even poses hidden dangers to the safety of children.In this paper, suggestions were put forward from the indications, dosage form/route, dosage suitability, pathophysiological characteristics of children with individual differences and drug interactions in the symptomatic treatment of febrile children, so as to provide reference for the general pharmacists when conducting prescription review.