The region of about 4.0 kb upstream of Spodoptera litura nucleopolyhedrovirus (SpltNPV) chiA gene was sequenced, in which six open reading frames(ORF1～6) were found. These ORFs are 156, 297, 540, 369, 1281, and 228 nucleotides long, encoding the proteins of 51, 98, 179, 122, 426, and 75 amino acids with the molecular weight of 6.15 kD, 11.46 kD, 21.70 kD, 14.69 kD, 47.59 kD, and 9.09 kD respectively. One early promoter motif CAGT in ORF1 and ORF3, two early promoter motifs CAGT in ORF2, one late promoter motif TAAG in ORF4 and two late promoter motifs TAAG in ORF5 were found in 5′noncoding regions of these ORFs. The polyadenylation signals, AATAAA, are located downstream of the translation stop codon of ORF1, ORF4 and ORF5. ORF4 is the homologous gene of AcMNPV ORF53, BmNPV ORF42, OpMNPV ORF56 and LdMNPV ORF54. Compared with all genes from baculoviruses, ORF1, ORF2 and ORF6 have no homologous genes. It is suggested that ORF1, ORF2 and ORF6 may be three novel baculovirus genes.

A series of cycloberberine derivatives were designed, synthesized and evaluated for their anti-cancer activities in vitro. Among these analogs, compounds 6c, 6e and 6g showed strong inhibition on human HepG2 cells. They afforded a potent effect against DOX-resistant MCF-7 breast cells as well. The primary mechanism showed that cell cycle was blocked at G2/M phase of HepG2 cells treated with 6g using flow cytometry assay. It significantly inhibited the activity of DNA Top I at the concentration of 0.1 mg mL-1. Our results provided a basis for the development of this kind of compounds as novel anti-cancer agents.
Antineoplastic Agents ; chemical synthesis ; chemistry ; pharmacology ; Berberine ; analogs & derivatives ; chemical synthesis ; chemistry ; pharmacology ; Cell Cycle ; drug effects ; Cell Proliferation ; drug effects ; DNA Topoisomerases, Type I ; metabolism ; Doxorubicin ; pharmacology ; Drug Resistance, Neoplasm ; Hep G2 Cells ; Humans ; MCF-7 Cells ; Molecular Structure ; Structure-Activity Relationship

OBJECTIVE: To study the expression levels of glial cell line-derived neurotrophic factor family receptor α-1 (GFRα1) and enhancer of zeste homolog 2 (EZH2) in the intestinal tissue of children with Hirschsprung's disease (HSCR), as well as the role of EZH2 in the regulation of GFRα1 gene expression and the pathogenesis of HSCR. METHODS: The samples of colon tissue with spasm from 24 children with HSCR after radical treatment of HSCR were selected as the experimental group, and the samples of necrotized colon tissue from 18 children with neonatal necrotizing enterocolitis after surgical resection were selected as the control group. Real-time PCR and Western blot were used to measure the expression levels of GFRα1 and EZH2 in colon tissue in both groups. Human neuroblastoma SH-SY5Y cells were divided into an EZH2 over-expression group and a negative control group. The cells in the EZH2 over-expression group were transfected with pCMV6-EZH2 plasmid, and those in the negative control group were transfected with pCMV6 plasmid. The expression levels of EZH2 and GFRα1 were measured after transfection. RESULTS: Compared with the control group, the experimental group had significant reductions in the mRNA and protein expression levels of GFRα1 and EZH2 in colon tissue (P<0.05), and the protein expression of EZH2 was positively correlated with that of GFRα1 (r=0.606, P=0.002). Compared with the negative control group, the EZH2 over-expression group had significant increases in the expression levels of EZH2 and GFRα1 after SH-SY5Y cells were transfected with EZH2 over-expression plasmid (P<0.05). CONCLUSIONS Low expression of EZH2 in the colon tissue of children with HSCR may be one of the causes of inadequate expression of GFRα1 and onset of HSCR.
Child ; Colon ; Enhancer of Zeste Homolog 2 Protein ; genetics ; Glial Cell Line-Derived Neurotrophic Factor Receptors ; genetics ; Hirschsprung Disease ; genetics ; Humans ; Infant, Newborn ; RNA, Messenger

Objective:To investigate the expression of Fas、FasL and the apoptosis of liver cancer cell line HepG2 transfected with LIGHT and IFN-? gene mediated by Cationic liposome.Methods:HepG2 cells were divided into two groups(the solo transfection of LIGHT gene and the combined transfection of LIGHT and IFN-? genes) and the control groups(no transfection).HepG2 cells were cellected at 12h,24h and 48h after transfection.The apoptosis of HepG2 cells and the expression of Fas and FasL of the HepG2 cells were investigated with flow cytometry.Results:After transfection,the apoptosis of HepG2 cells increased,and the apoptosis of combined transfection group was higher than the solo transfection of LIGHT(P

OBJECTIVETo study the levels of blood lipid among Chinese adults in 2010 and analyze the epidemiological features.

METHODSFasting serum levels of total cholesterol (TC), triglyceride (TG), high density lipoprotein-cholesterol (HDL-C) and low density lipoprotein-cholesterol (LDL-C) were determined for 90 395 subjects aged 18 and over who were selected by multi stage cluster random sampling method from 162 surveillance sites of 31 provinces of China mainland in 2010. After complex weighting, the differences of levels of serum total TC, TG, HDL-C and LDL-C were analyzed in different age, gender and geographic regions.

RESULTSAfter complex weighting, the levels of serum TC in Chinese adults was (4.04 ± 1.08) mmol/L, with (3.86 ± 1.03), (4.29 ± 1.11) and (4.33 ± 1.09) mmol/L in the groups of 18 - 44, 45 - 59 and over 60 years old (F = 177.56, P < 0.01), respectively. The level of serum TC was (4.06 ± 1.09) mmol/L and (4.03 ± 1.07) mmol/L in males and females (F = 2.38, P > 0.05), respectively; (4.08 ± 1.13) mmol/L and (4.03 ± 1.06) mmol/L in urban and rural areas (F = 0.51, P > 0.05), respectively, and (4.13 ± 1.11), (4.03 ± 1.01) and (3.93 ± 1.11) mmol/L in areas of east, middle and west respectively (F = 2.56, P > 0.05). The levels of serum TG was (1.33 ± 1.28) mmol/L, with(1.26 ± 1.24), (1.48 ± 1.46) and (1.35 ± 1.05) mmol/L in the groups of 18 - 44, 45 - 59 and over 60 years old (F = 85.98, P < 0.01), respectively. The level of serum TG was (1.45 ± 1.48) mmol/L and (1.21 ± 1.01) mmol/L in males and females (F = 172.01, P < 0.01), respectively, (1.34 ± 1.26) mmol/L and (1.33 ± 1.28) mmol/L in urban and rural areas (F = 0.16, P > 0.05), respectively, and(1.30 ± 1.25), (1.35 ± 1.23) and (1.35 ± 1.36) mmol/L in areas of east, middle and west (F = 0.69, P > 0.05) respectively. The levels of serum HDL-C was (1.11 ± 0.31) mmol/L, with (1.09 ± 0.30), (1.13 ± 0.33) and (1.14 ± 0.33) mmol/L in the groups of 18 - 44, 45 - 59 and over 60 years old (F = 27.81, P < 0.01), respectively. The level of serum HDL-C was (1.08 ± 0.32) mmol/L and (1.14 ± 0.30) mmol/L in males and females (F = 178.66, P < 0.01), respectively, (1.11 ± 0.31) mmol/L and (1.11 ± 0.32) mmol/L in urban and rural areas (F = 0.09, P > 0.05), respectively, and (1.12 ± 0.32), (1.12 ± 0.31) and (1.09 ± 0.32) mmol/L in areas of east, middle and west (F = 1.06, P > 0.05) respectively. The levels of serum LDL-C was (2.27 ± 0.78) mmol/L, with (2.15 ± 0.74), (2.42 ± 0.80) and (2.46 ± 0.81) mmol/L in the groups of 18 - 44, 45 - 59 and over 60 years old (F = 129.84, P < 0.01), respectively. The level of serum LDL-C was (2.30 ± 0.78) mmol/L and (2.24 ± 0.78) mmol/L in males and females (F = 25.06, P < 0.01), respectively, (2.33 ± 0.82) mmol/L and (2.24 ± 0.76) mmol/L in urban and rural areas (F = 3.48, P > 0.05), respectively, and (2.35 ± 0.80), (2.25 ± 0.74) and (2.17 ± 0.77) mmol/L in areas of east, middle and west (F = 4.58, P < 0.05) respectively.

CONCLUSIONThe levels of serum lipid of middle aged male, female after menopause and people living in eastern region were higher than other Chinese adults. Effective measures should be taken earlier to control serum lipid levels.

Adolescent ; Adult ; Age Distribution ; Asian Continental Ancestry Group ; China ; epidemiology ; Cholesterol ; blood ; Cholesterol, HDL ; blood ; Cholesterol, LDL ; blood ; Cross-Sectional Studies ; Dyslipidemias ; epidemiology ; Female ; Humans ; Lipids ; blood ; Male ; Middle Aged ; Sex Distribution ; Triglycerides ; blood ; Young Adult

A series of novel N-(2-arylethyl) isoquinoline derivatives were designed, synthesized and evaluated for their anti-cancer activities. Among these analogs, compound 9a exhibited the potential anti-cancer activities on HepG2 and HCT116 cells with IC50 values of 2.52 and 1.99 microg x mL(-1), respectively. Cell cycle was blocked at S phase of HepG2 cells treated with 9a by flow cytometry detection. Our results provided a basis for the development of a new series of anti-cancer candidates.
Antineoplastic Agents ; chemical synthesis ; chemistry ; pharmacology ; Cell Cycle ; drug effects ; Cell Proliferation ; drug effects ; HCT116 Cells ; Hep G2 Cells ; Humans ; Inhibitory Concentration 50 ; Isoquinolines ; chemical synthesis ; chemistry ; pharmacology ; Molecular Structure ; Structure-Activity Relationship

Objective To study the factors influencing the blood concentration of caspofungin(CPFG),construct a prediction model,and validate the predictive effect of the model,so as to provide reference for the individualised dosing of patients with fungal infections in haematology.Methods Seventy-five patients admitted to the Department of Haematology,General Hospital of Tianjin Medical University,who were treated with CPFG for antifungal therapy during the period of March 2021 to June 2022 were selected as the study subjects,and CPFG blood concentration monitoring was carried out to explore the influencing factors of CPFG blood concentration and to construct a prediction model accordingly.Hosmer-Lemeshow(H-L)was used to test the goodness-of-fit of the model,and another 30 patients were selected as the verification group,and the predictive effect of the model was verified by the receiver's operating characteristics(ROC)curve.Results The mean blood concentrations of the patients at 0.5,9 and 24 h were(12.54±4.38),(6.80±2.76),(4.13±2.16)μg·mL-1,and the mean AUC0-24h were(152.05±57.60)μg·mL-1·h.AUC0-24h was lower than the reference value(98 μg·mL-1·h)in two patients.The results of correlation analysis showed that gender showed a correlation with 0.5 h blood concentration(P＜0.05),and there was no correlation with the rest of the two time points blood concentration and AUC0-24h(P＞0.05).Body weight and albumin(Alb)concentration showed correlation with 0.5,9,24 h blood drug concentration and AUC0-24 h(P＜0.05),and the rest of the indicators showed no correlation with blood drug concentration and AUC0_24h at each time point(P＞0.05).The results of multifactorial analysis showed that the factors influencing the patients'0.5 h blood concentration were gender,Alb concentration and body weight,and the factors influencing the 9 and 24 h blood concentration and AUC0-24h were Alb concentration and body weight(P＜0.05).Correlation analysis showed that the daily dose was positively correlated with the plasma concentration of CPFG at 0.5,9 and 24 h and AUC0-24h(P＜0.05).The results of multivariate analysis showed that the daily dose was also one of the influencing factors of the plasma concentration of CPFG(P＜0.05).ROC curve shows that the model has good prediction ability.Conclusion Body weight and Alb are significantly associated with CPFG blood concentrations and area under the drug-time curve,which can be used as a basis for preventive risk avoidance.

Objective:To analyze the genotypes distribution of common and rare thalassemia in people of reproductive age in Huadu district of Guangzhou,enhance the database of thalassemia.Methods:Peripheral blood samples were collected for genotype analysis in Maternity and Child Health Hospital of Huadu District from January 2016 to October 2022.Gap-PCR and Reverse dot blot hybridization were used to detect common thalassemia genotypes.DNA sequencing was performed in samples suspected of rare genotypes.Results:A total of 16 171 subjects were identified as thalassemia carriers,and the positive rate was 44.41％(16 171/36 412).The genotypes of 114 cases(0.31％)were rare.A total of 10 845 cases were identified as α-thalassemia carriers(29.78％),and--SEA/αα was the most common genotype in those people,followed by-α3.7/αα and-α4.2/αα.A total of 4 531 subjects were identified as common β-thalassemia carriers(12.44％).The most common β-thalassemia mutation in the population was β41-42/βN,followed by β654/βN and β-28/β N.A total of 681 subjects were identified as αβ thalassemia carriers(1.87％),among them--SEA/αα compounded withβ CD41-42/β N was the most common genotype.A total of 48 cases were identified as rare α-thalassemia carriers,14 types of mutations,in which Fusion gene/αα was the most common.A total of 52 cases were identified as rare β-thalassemia carriers,11 types of mutation,in which βSEA-HPFH/βN was the most common.Conclusion:The thalassemia genotypes in Huadu district are complex and diverse.We should attach great importance to the detection of rare thalassemia genotypes.

Metabolic profile of bile acids was used to evaluate hepatotoxicity of mice caused by ethanol extraction of Dioscorea bulbifera L. (ethanol extraction, ET) and diosbulbin B (DB), separately. Ultra-performance liquid chromatography coupled with quadrupole mass spectrometry (UPLC-MS) was applied to determine the contents of all kinds of endogenous bile acids including free bile acids, taurine conjugates and glycine conjugates. Obvious liver injuries could be observed in mice after administrated with ET and DB. Based on the analysis using principle components analysis (PCA), toxic groups could be distinguished from their control groups, which suggested that the variance of the contents of bile acids could evaluate hepatotoxicity caused by ET and DB. Meanwhile, ET and DB toxic groups were classified in the same trends comparing to control groups in the loading plot, and difference between the two toxic groups could also be observed. DB proved to be one of the toxic components in Dioscorea bulbifera L. Bile acids of tauroursodeoxycholic acid (TUDCA), taurochenodeoxycholic acid (TCDCA), taurocholic acid (TCA), taurodeoxycholic acid (TDCA), cholic acid (CA) and others proved to be important corresponds to ET and DB induced liver injury according to analysis of partial least square-discriminant analysis (PLS-DA) and the statistical analysis showed that there were significant differences between the control groups and toxic groups (P < 0.01). Furthermore, good correlation could be revealed between the foregoing bile acids and ALT, AST. It indicated that taurine conjugated bile acids as TUDCA, TCDCA, TCA and TDCA along with CA could be considered as sensitive biomarkers of ET and DB induced liver injury. This work can provide the base for the further research on the evaluation and mechanism of hepatotoxicity caused by Dioscorea bulbifera L.
Animals ; Bile Acids and Salts ; metabolism ; Chemical and Drug Induced Liver Injury ; metabolism ; Cholic Acid ; metabolism ; Chromatography, High Pressure Liquid ; methods ; Dioscorea ; toxicity ; Drugs, Chinese Herbal ; isolation & purification ; toxicity ; Heterocyclic Compounds, 4 or More Rings ; isolation & purification ; toxicity ; Least-Squares Analysis ; Male ; Mice ; Mice, Inbred ICR ; Plants, Medicinal ; toxicity ; Principal Component Analysis ; Rhizome ; toxicity ; Tandem Mass Spectrometry ; methods ; Taurochenodeoxycholic Acid ; metabolism ; Taurocholic Acid ; metabolism ; Taurodeoxycholic Acid ; metabolism

OBJECTIVETo understand the prevalence of hypercholesterolemia, high blood low density lipoprotein cholesterol, low blood high density lipoprotein cholesterol and hypertriglyceridemia among Chinese adults in 2010.

METHODSLevels of triglyceride (TG), low density lipoprotein-cholesterol (LDL-C), high density lipoprotein-cholesterol (HDL-C) and total cholesterol (TC) were determined in fasting serum for subjects who were selected by multi-stage stratified cluster random sampling in from 162 surveillance points of 31 provinces in 2010. Prevalence of hypercholesterolemia, high blood LDL-C, low blood HDL-C and hypertriglyceridemia of 97 409 subjects was analyzed.

RESULTSAfter the complex weighting, prevalence of hypercholesterolemia in Chinese adults was 3.3%, with 2.2%, 4.7% and 4.7% in the groups of 18 - 44, 45 - 59 and over 60 years old (P < 0.01), respectively, 3.4% and 3.2% in males and females (P > 0.05), respectively, 4.2% and 2.9% in urban and rural areas (P < 0.01), 4.2%, 2.4% and 3.1% in areas of east, central and west (P < 0.01). Prevalence of high blood LDL-C was 2.1%, with 1.3%, 3.0% and 3.6% in the groups of 18 - 44, 45 - 59 and over 60 years old (P < 0.01), respectively, 2.1% in both males and females (P > 0.05), 3.0% and 1.8% in urban and rural areas (P < 0.01), and 2.9%, 1.5% and 1.8% in areas of east, central and west (P < 0.01), respectively. Prevalence of low blood HDL-C was 44.8%, with 46.9%, 42.6% and 41.2% in the groups of 18 - 44, 45 - 59 and over 60 years old (P < 0.01), 50.6% and 38.9% in males and females (P < 0.01), respectively, 45.4% and 44.6% in urban and rural areas (P < 0.05), and 43.5%, 43.3% and 48.6% in areas of east, central and west (P < 0.01). Prevalence of hypertriglyceridemia was 11.3%, with 10.1%, 14.2% and 10.8% in the groups of 18 - 44, 45 - 59 and over 60 years old (P < 0.01), respectively, 13.8% and 8.6% in males and females (P < 0.01), respectively, 12.1% and 10.9% in urban and rural areas (P < 0.01), and 11.0%, 11.7% and 11.2% in areas of east, central and west (P < 0.05).

CONCLUSIONLow blood HDL-C and hypertriglyceridemia are two major types of dyslipidemia in Chinese adults.

Adolescent ; Adult ; Age Distribution ; Asian Continental Ancestry Group ; China ; epidemiology ; Dyslipidemias ; epidemiology ; Female ; Humans ; Hypercholesterolemia ; epidemiology ; Hypertriglyceridemia ; epidemiology ; Male ; Middle Aged ; Prevalence ; Risk Factors ; Sex Distribution ; Young Adult