Objective:To investigate the change of apoptosis-associated genes in human lung adenocarcinoma cell lines A549/DDP cells,which were induced by the recombinant human interleukin-24(rhIL-24) combined with Cisplatin (DDP). Methods: Six genes expression level by GeXP genetic analysis system at the same time,after rhIL-24,DDP and rhIL-24+DDP were used to intervene in A549/DDP cells. Results:rhIL-24 could induce Bax gene,Caspase3 gene and Rb gene transcription up regulation;Bcl-2 gene and survivin gene transcription down regulation. But no regular change in the genes expression level of P53. Bax,Survivin and Rb were more obviously changed after rhIL-24 combined with DDP. Conclusion: RhIL-24 can induce apoptosis of A549/DDP cells through upregulated the genes expression level of Bax,Caspase3,Rb and down regulated of Bcl-2,Survivin.

Objective:By comparing the clinical outcome of the modified triple tube method and the traditional three-tube method in the treatment of thoracic internal fistula after esophageal cancer surgery, in order to provide a basis for the clinical treatment of thoracic fistula after esophageal cancer surgery.Methods:The traditional three-tube method for the treatment of thoracic fistula after esophageal cancer surgery was the traditional group, and the modified three-tube method was the modified group. There was no spillover of the contrast agent during the above gastrointestinal angiography and the patient could eat normally as the standard of cure. In this study, we collected the data of thoracic fistula patients after esophageal cancer surgery who were treated with two kinds of treatment methods in our hospital in different time period(the traditional group: 10 patients from February 2008 to June 2014; the modified group: 36 patients from January 2012 to December 2019). Retrospective analysis of the two groups of patients in terms of general data(sex, age, etiology and other factors), time to cure and other indicators, compare the pros and cons of these two methods in the treatment of postoperative thoracic fistula.Results:There was no significant difference in general data such as sex, age, and cure time between the two groups, but there was significant difference in the cure time( P<0.01). The average cure time of the modified group was(38.08±11.97) days, which was significantly better than that of the traditional group(95.60 ± 7.79) days. Conclusion:Compared with the traditional three-tube method, the modified three-tube method can significantly shorten the treatment time when treating patients with thoracic fistula after esophageal cancer surgery.

[Objective] To observe the effect of extract of Carapax et Plastrum Testudinis (ECPT) on nuclear receptor in the proliferation of rat mesenchymal stem cell (MSC) in vitro. [Methods] The rat MSC dissociated from bone marrow by density gradient method were cultured and identified by marking of bromodeoxyuridine (Brdu) and staining of CD44. Then different doses of ECPT (3333, 333.3 and 33.33 ?g/mL) were respectively added into in-vitro cultured MSC for 12, 24, 72 and 120 hours. The expression of retinoic acid receptor-?(RAR?), vitamin D receptor (VDR), estrogen receptor (ER), glucocorticoid receptor (GR), thyroid hormone receptor-?(TR?) and peroxisome proliferator-activated receptor ?(PPAR?) in MSC was detected by immunohistochemistry and immunofluorescence methods. [Results] The number of RAR?-and VDR-positive cells in ECPT groups was higher than that in the control group (P

Purpose To evaluate the application value of volume CT perfusion (CTP) protocol with 128-slice CT scanner in patients with unilateral middle cerebral artery (MCA) stenosis or occlusion.Materials and Methods Thirty-five patients with severe unilateral MCA stenosis or occlusion who underwent cerebral volume CTP examination in Wuhan No.1 Hospital between July 2013 and December 2014 were evaluated.The volume CTP parameter maps of cerebral blood flow (CBF),cerebral blood volume (CBV),mean transit time (MTT) and time to peak (TTP) were analyzed.Meanwhile,the dynamic CT angiography (4D-CTA) images were obtained.Results In three patients,CBF,CBV and MTT were observed normal but TTP was delayed.In the other thirty-two patients,CBF in the affected side was lower than that in the contralateral side (but difference without significance:P＞0.05).The increased CBV,prolonged TTP and MTT were also detected in the affected side compared with the contralateral side (difference with significance:P＜0.05).McNemar test showed 4D-CTA and DSA diagnosis of middle cerebral artery occlusion were not significantly different (P＞0.05),and they had better consistency (Kappa=0.861,P＜0.05).Conclusion Brain volume CTP protocol with 128-slice CT scanner provides valuable information about cerebral artery abnormalities and hemodynamic changes in patients with severe stenosis or occlusion of MCA.It has great value for clinical application.

OBJECTIVETo study the alkaloids in the stems and leaves of Stephania cepharantha.

METHODThe dried stems and leaves of S. cepharantha were percolated with 95% ethanol and the solvent was removed by rotary evaporation to give a concentrate, and the concentrate was extracted by petroleum ether and chloroform. Column chromatograghy on MCI CHP 20P, silica gel, Rp-18, Sephadex LH-20 and polyamide were applied for the isolation and purification of the chloroform fraction. The structures were elucidated by their physicochemical properties and spectral data.

RESULTEleven alkaloids were obtained and identified as lysicamine (1), tetrahadropalmatine (2), palmatine (3), isocorydione (4), corydalmine (5), corypalmine (6), sinoracutine (7), sinoacutine (8), cepharamine (9), isocorydine (10) and corydine (11).

CONCLUSIONCompounds 2-7 were isolated from S. cepharantha for the first time, and compound 7 was isolated from the genus Stephania for the first time, compound 4 was isolated from the Menispermaceae family for the first time.

Alkaloids ; analysis ; isolation & purification ; Plant Leaves ; chemistry ; Plant Stems ; chemistry ; Stephania ; chemistry

OBJECTIVETo study the hasubanan type alkaloids in Stephania hernandifolia.

METHODThe dried herbs of S. hernandifolia. were extracted with 95% ethanol. After removal of the solvent, the residue was first partitioned between acid water and petroleum ether, then the aqueous layer was basified and extracted with chloroform to obtain crude alkaloids. Column chromatograghic methods with on silica gel, Rp-18, MCI CHP 20P, Sephadex LH-20 were applied for the isolation and purification of the crude alkaloid fraction. The structures were elucidated by their physicochemical properties and spectral data.

RESULTNine hasubanan type alkaloids were obtained and identified as aknadinine(1), longanone(2), stephasunoline (3), N-methylstephuline(4), epistephamiersine(5), prostephabyssine(6), aknadilactam(7), dihydroepistephamiersine(8), hasubanonine(9).

CONCLUSIONCompounds 2-8 were isolated from this plant for the first time.

Alkaloids ; chemistry ; isolation & purification ; Chemical Phenomena ; Molecular Structure ; Plant Extracts ; chemistry ; isolation & purification ; Stephania ; chemistry

Objective:To evaluate the value of dual-energy CT (DECT) mixed images CT in predicting hemorrhagic transformation (HT) after endovascular therapy (EVT) of acute ischemic stroke (AIS).Methods:From October 2018 to January 2020, the immediate dual-energy CT images of intracranial high attenuation (HA) regions in patients with AIS after endovascular treatment in Wuhan No.1 Hospital were retrospectively analyzed. According to the diagnostic criteria of CT or diffusion weighted image in 72 hours of follow-up, they were classified into HT group and non-HT group. The CT value of mixed images, contrast media, and virtual non-enhancement (VNC) and iodine concentration in the highest attenuation areas were measured. Intragroup correlation coefficient was used to evaluate the consistency among the readers; Mann-Whitney U test was used to compare the difference between the two groups of quantitative parameters; Spearman correlation analysis was uesd for evaluating correlation between mixed images CT value and contrast media CT value, VNC CT value, and iodine concentration. The receiver operating characteristic curve was used to analyze the quantitative parameters to predict the diagnostic efficacy of HT. Results:A total of 154 cases were enrolled, with 65 cases in the HT group and 89 cases in the non-HT group. The intraclass correlation coefficient of CT values of mixed images was 0.861 ( P<0.05). Comparing the non-HT group and the HT group,the CT value of mixed images [59.40(54.84, 63.05) HU vs 100.10(79.90, 122.40) HU, Z=-10.87, P<0.001],contrast agent CT value [24.90(20.75, 30.05) HU vs 66.60(47.10, 84.15) HU, Z=-10.85, P<0.001] and iodine concentration [1.10(1.00, 1.30) mg/ml vs 2.90(2.05, 3.65) mg/ml, Z=-10.85, P<0.001] both increased in the HT group, but there was no significant difference in VNC CT values between the two groups [33.60(31.80, 35.70) HU vs 34.30(30.90, 38.00) HU, Z=-0.50, P=0.62]. There was a highly significant correlation between the CT value of mixed images and iodine concentration ( r=0.99, P<0.01). Using CT value>72.60 HU as the diagnostic cutoff value for predicting HT, the sensitivity and specificity were 89.23% and 95.51%, respectively. Conclusions:The CT value of DECT mixed images after EVT can be used to predict HT within 72 hours. When DECT was not available, conventional CT scan′s intracranial HA density over 72.60 HU can be selected as the cutoff value for predicting HT.

Objective To evaluate adverse events(AEs)of hematological toxicities in cyclin-dependent kinase 4/6(CDK4/6)inhibitors based on the FDA adverse event reporting system(FAERS)database,and to provide a reference for rational drug use in the clinic.Methods A total of 29 quarterly AEs were extracted from the FAERS database from January 2015 to March 2022.Reported odds ratio(ROR)and proportional reported ratio(PRR)were used for data mining of CDK4/6 inhibitor AEs.Results A total of 7 872 AEs related to CDK4/6 inhibitors were reported,and the proportion of hematological AEs of each inhibitor was palbociclib(80.31%),ribociclib(15.36%),and abemaciclib(4.33%).Neutropenia and anemia were common in hematological toxicities.Palbociclib(2 982/6 322,47.17%)and ribociclib(613/1 209,50.70%)caused more neutropenia than abemaciclib(117/341,34.31%).Hematological toxicities mainly occurred 60 days after drug initiation(1 630,61.86%).Palbociclib had the longest median onset time,and 32.9%of patients still had hematological toxicities after 90 days of treatment.The clinical features and intensity were different among CDK4/6 inhibitors.Conclusions Palbociclib,abemaciclib,and ribociclib all cause significant hematological toxicities,among which abemaciclib has fewest reports of hematological toxicities.Still,the risk of death after anemia caused by abemaciclib should be noted.Complete blood cell count should be closely monitored within the first two months after treatment to monitor the patient's neutrophils and hemoglobin.The occurrence of hematological AEs associated with CDK4/6 inhibitors should be noted in the clinic.

Objective To evaluate the immunogenicity and safety of inactivated poliovirus vaccine derived from Sabin strain (sIPV) in Banna mini pigs, and to provide experimental evidence for the new animal model. Methods sIPV vaccines which are listed at Institute of Medical Biology at Chinese Academy of Medical Sciences were used in this study. The groups of intramuscular sIPV and the wild strain IPV injections (IPV derived from wild strain, wIPV) were designed, and the saline group was used as a negative control group. The Banna mini pigs in various groups were immunized at 0, 1 and 2 months. Blood samples were collected before immunization and on days 30 after each immunization. Levels of neutralizing antibodies were tested for evaluating immunogenicity. The safety was evaluated by observation of the status and weight of mini pigs. Results After the three dose immunization schedules in the Banna mini pigs, the seroconversion rates of type Ⅰ,Ⅱ and Ⅲ sIPV experimental groups and wIPV group were all up to 100%. The neutralizing antibody levels in all the three types were much higher than the protective titer 1: 8. The weight of mini pigs increased after vaccination. Conclusions The sIPV vaccine has good immunogenicity and safety in Banna mini pigs. Banna mini pigs could be a new animal model for evaluation of sIPV vaccine.

Objective: To understand the awareness of sexual knowledge among primary and secondary school students, as well as their attitudes towards school sex education and to provide a reference for school-based sex education. Methods: A total of 5 531 primary and secondary school students were selected from Beijing, Chongqing, Heilongjiang (Harbin and Jiamusi) and Hubei (Wuhan and Xiaogan) by stratified cluster sampling and were investigated with self-reported questionnaire. Results: Sex-related knowledge scored 62.33±19.35, with a pass rate of 61.9%, and the excellent rate 17.5%. Sexual knowledge of junior high school students scored 64.30±19.07, with the pass rate of 64.7%, and the excellent rate 22.0%. A large proportion of primary students reported unaware of pubertal growth and HIV/AIDS-related knowledge, and a large proportion of junior high students unaware of reproductive physiology. Multivariate Logistic regression analysis showed region, grade, gender, and suburban areas were related to the level of sexual knowledge(P<0.05). More than 76.0% primary students and 85.9% middle school students agreed on the importance of school sexuality education. 59.7% of primary school students and 73.3% of junior high school students hoped to include school sexuality education in compulsory education courses; 59.8% of primary school students and 68.3% of junior high school students felt that school sexuality education should be equipped with specialized teachers. Conclusion Chinese primary and secondary school students are lack of sexual knowledge. As students have strong wills to get more information on sexual knowledge, schools should provide them with more comprehensive and effective sex education through appropriate courses and activities.