0.05).Meanwhile,the cardiac function and the quality of life of the rehabilitation exercise group was improved to a significantly larger extend than those of the control group (P

OBJECTIVETo explore the expression of connective tissue growth factor (CTGF) in pancreatic cancer and its influence on the proliferation and migration of cancer cells.

METHODSThe expression of CTGF in pancreatic cell line PANC-1 cells was analyzed by real-time PCR and in pancreatic carcinoma (50 cases) tissues by immunohistochemistry. The ability of proliferation and migration in vitro of PANC-1 cells was tested by MTT assay, scratch test and Boyden chamber test after the CTGF gene was overexpressed by Ad5-CTGF or silenced with Ad5-siCTGF transfection.

RESULTSCTGF was overexpressed in both pancreatic cancer cells and tissues. Overxpression of CTGF leads to increased proliferation and migration of PANC-1 cells. The CTGF-transfected PANC-1 cells showed apparent stronger proliferation ability and scratch-repair ability than that of empty vector controls. The results of Boyden chamber test showed that there were 34 cells/field (200× magnificantion) of the CTGF-transfected overexpressing cells, much more than the 11 cells/field of the empty vector control cells; and 6 cells/microscopic field of the Ad5-siCTGF-transfected silenced cells, much less than the 15 cells/field of the control cells.

CONCLUSIONSCTGF is overexpressed in both pancreatic cancer cells in vitro and in vivo, indicating that it may play an important role in the cell proliferation and migration in pancreatic cancer.

Adenoviridae ; genetics ; Cell Line, Tumor ; Cell Movement ; Cell Proliferation ; Connective Tissue Growth Factor ; genetics ; metabolism ; Humans ; Pancreatic Neoplasms ; metabolism ; pathology ; Recombinant Proteins ; genetics ; metabolism ; Transfection

OBJECTIVETo evaluate the health-related quality of life and postdischarge long-term outcome after severe acute pancreatitis.

METHODSThe hospital records of patients with SAP discharged healthy from January 2003 to December 2003 were reviewed. The Rand 36-item Health Survey with accessory question was mailed to each patient. The means and deviations for each of eight scales scores of SF-36 were calculated, the study population scores were compared with general Chinese population; Univariate analysis was applied to determining the effects of variables such as age, sex, causes of disease, mode of treatment, frequency of surgery, financial burden, length of stay, chronic complications. Accessory questions were analyzed separately.

RESULTSThe means and deviations for each of eight scales (PF, RP, RE, BP, VT, MH, SF, GH) scores of SF-36 in SAP patients were 83 +/- 15, 62 +/- 42, 69 +/- 36, 80 +/- 15, 69 +/- 19, 72 +/- 15, 75 +/- 18, 65 +/- 18, compared with general people. Except RP and SF, the others were similar. In the ANOVA of Physical Component Summary, the three variables mode of treatment, financial burden and length of stay were included (P < 0.05), while in that of Mental Component Summary, the two variables of gender and financial burden were included (P < 0.05).

CONCLUSIONSThe health-related quality of life in SAP patients is similar to that of general people. Greater attention should be given to mode of treatment, length of stay and financial burden to improve quality of life.

APACHE ; Adolescent ; Adult ; Aged ; Analysis of Variance ; Female ; Follow-Up Studies ; Humans ; Male ; Middle Aged ; Pancreatitis, Acute Necrotizing ; psychology ; therapy ; Quality of Life ; Retrospective Studies ; Surveys and Questionnaires ; Survivors ; Treatment Outcome

This study is to investigate the anti-angiogenetic effect of arenobufagin in vitro and in vivo. The anti-proliferation effect of arenobufagin on CNE-2, Hep2, SH-SY5Y, LOVO, PC-3 and DU145 cells as well as human umbilical vein endothelial cells (HUVECs) was determined by MTT assay. Cell morphological changes of LOVO and HUVECs after arenobufagin treatment were observed by microscopy. Arenobufagin inhibited the proliferation of CNE-2, Hep2, SH-SY5Y, LOVO, PC-3, DU145 and HUVECs in a dose-dependent manner. Furthermore, it was obviously observed that the subcytotoxic concentration of arenobufagin in human carcinoma cells induced a marked decrease in the viability of HUVECs. Chick embryo chorioallantoic membrane (CAM) model was used to detect the anti-angiogenetic effect of arenobufagin in vivo. Arenobufagin significantly suppressed the angiogenesis of CAM. Cell cycle analysis demonstrated that G2/M phase was arrested and the sub-G1 peak appeared with the increase of arenobufagin concentration. PI/Annexin V double staining assay further demonstrated that arenobufagin could induce apoptosis in a dose- and time-dependent manner. Mitochondrial potential collapse detected by flow cytometric analysis was increased after arenobufagin treatment. It also observed that PARP was cleaved to p85 active form by Western blotting. Taken together, arenobufagin has significant anti-angiogenetic effect in vitro and in vivo, and the action mechanisms behind its anti-angiogenesis may be associated with cell cycle arrest and apoptosis of vein endothelial cells.
Angiogenesis Inhibitors ; administration & dosage ; pharmacology ; Animals ; Antineoplastic Agents ; administration & dosage ; pharmacology ; Apoptosis ; Bufanolides ; administration & dosage ; pharmacology ; Cell Cycle ; Cell Line, Tumor ; Cell Proliferation ; drug effects ; Cell Survival ; Chick Embryo ; Chorioallantoic Membrane ; blood supply ; Dose-Response Relationship, Drug ; Human Umbilical Vein Endothelial Cells ; Humans ; Membrane Potential, Mitochondrial ; drug effects ; Neovascularization, Pathologic ; prevention & control ; Poly(ADP-ribose) Polymerases ; metabolism

A new dibenzocyclooctadiene lignan, renchangianin E (1) was isolated from the stems of Kadsura renchangiana. Its structure and stereochemistry were elucidated by spectroscopic methods, including 2D-NMR techniques.
Cyclooctanes ; chemistry ; Kadsura ; chemistry ; Lignans ; chemistry ; Magnetic Resonance Spectroscopy ; Molecular Structure

BACKGROUND:To obtain enough adipose-derived stem cells (ADSCs) is the premise of repairing osteoporotic bone defects by autograft transplantation;therefore,how to efficiently,simply and economically harvest primary autologous ADSCs is the key to the treatment of osteoporosis.OBJECTIVE:To isolate and culture ADSCs from mice with osteoporosis (OP-ADSCs) in vitro by tissue explant culture and collagenase digestion,and to compare the efficacies of these two methods.METHODS:Adipose tissues were isolated from the inguen of C57BL/6 mice,from which OP-ADSCs were obtained by tissue explant culture and collagenase digestion respectively.Then,the cells were subjected to primary culture and subculture.The surface specific antigens of passage 3 cells were observed using flow cytometry,while the yields and proliferation abilities of passage 3 were compared at 7 days of culture.The adipogenic and osteogenic differentiation of OP-ADSCs at passage 4 was detected.RESULTS AND CONCLUSION:(1) The expression levels of CD34,CD146,Sca-1 in passage 3 cells were (15.22±1.85)％,(75.55±3.36)％ and (83.48±4.22)％ for the tissue explant culture and (13.46±2.21)％,(76.62±2.47)％ and (84.84±3.56)％ for the collagenase digestion method,respectively.(2) The cell yield from each milligram of adipose tissue by tissue explant culture was significantly higher than that by collagenase digestion (P ＜ 0.05).(3) The proliferation rate of cells in the tissue explant culture group was higher than that in the collagenase digestion group after 24 hours of culture.(4) The OP-ADSCs cultured by the two methods could differentiate into adipocytes and osteoblasts,and the lipid accumulation and the mineralized nodules showed no significant difference between the two groups (both P＞ 0.05).These experimental findings indicate that the tissue explant culture is more suitable for obtaining OP-ADSCs in vitro as compared with collagenase digestion,which contributes to provide adequate cell sources for studies on ADSCs treatment of osteoporotic fractures and bone defects.

To achieve a molecular method to identify Panax ginseng, P. notoginseng,P. quinquefolius and their admixture. The ITS,18S and matK sequences of Panax genus were analyzed to develop species-specific SNP marker. Three pairs of species-specific primers were designed to establish a multiplex allele-specific polymerase chain reaction (MAS-PCR) and the samples from different region were tested. The results showed that when the annealing temperature was 60 ℃ and the cycle number was 35, approximately 250, 500,1 000 bp specific band were obtained from P. ginseng, P. notoginseng and P. quinquefolius obtain, respectively. This method could also be used to authentificate admixture samples and could detect 0.5% percent of P. notoginseng or P. quinquefolius adulterated in P. ginseng, or 0.5% percent of P. ginseng or P. quinquefolius adulterated in P. notoginseng. The detect limit of P. ginseng in P. quinquefolius was 0.5% and P. notoginseng in P. quinquefolius was 1%. This results showed that the present method could be used as a promise method to identify Panax ginseng, P. notoginseng, P. quinquefolius and their admixture.

Objective: To analyze the clinical epidemiological characteristics including composition of pathogens , clinical characteristics, and disease prognosis acute bacterial meningitis (ABM) in Chinese children. Methods: A retrospective analysis was performed on the clinical and laboratory data of 1 610 children <15 years of age with ABM in 33 tertiary hospitals in China from January 2019 to December 2020. Patients were divided into different groups according to age,<28 days group, 28 days to <3 months group, 3 months to <1 year group, 1-<5 years of age group, 5-<15 years of age group; etiology confirmed group and clinically diagnosed group according to etiology diagnosis. Non-numeric variables were analyzed with the Chi-square test or Fisher's exact test, while non-normal distrituction numeric variables were compared with nonparametric test. Results: Among 1 610 children with ABM, 955 were male and 650 were female (5 cases were not provided with gender information), and the age of onset was 1.5 (0.5, 5.5) months. There were 588 cases age from <28 days, 462 cases age from 28 days to <3 months, 302 cases age from 3 months to <1 year of age group, 156 cases in the 1-<5 years of age and 101 cases in the 5-<15 years of age. The detection rates were 38.8% (95/245) and 31.5% (70/222) of Escherichia coli and 27.8% (68/245) and 35.1% (78/222) of Streptococcus agalactiae in infants younger than 28 days of age and 28 days to 3 months of age; the detection rates of Streptococcus pneumonia, Escherichia coli, and Streptococcus agalactiae were 34.3% (61/178), 14.0% (25/178) and 13.5% (24/178) in the 3 months of age to <1 year of age group; the dominant pathogens were Streptococcus pneumoniae and the detection rate were 67.9% (74/109) and 44.4% (16/36) in the 1-<5 years of age and 5-<15 years of age . There were 9.7% (19/195) strains of Escherichia coli producing ultra-broad-spectrum β-lactamases. The positive rates of cerebrospinal fluid (CSF) culture and blood culture were 32.2% (515/1 598) and 25.0% (400/1 598), while 38.2% (126/330)and 25.3% (21/83) in CSF metagenomics next generation sequencing and Streptococcus pneumoniae antigen detection. There were 4.3% (32/790) cases of which CSF white blood cell counts were normal in etiology confirmed group. Among 1 610 children with ABM, main intracranial imaging complications were subdural effusion and (or) empyema in 349 cases (21.7%), hydrocephalus in 233 cases (14.5%), brain abscess in 178 cases (11.1%), and other cerebrovascular diseases, including encephalomalacia, cerebral infarction, and encephalatrophy, in 174 cases (10.8%). Among the 166 cases (10.3%) with unfavorable outcome, 32 cases (2.0%) died among whom 24 cases died before 1 year of age, and 37 cases (2.3%) had recurrence among whom 25 cases had recurrence within 3 weeks. The incidences of subdural effusion and (or) empyema, brain abscess and ependymitis in the etiology confirmed group were significantly higher than those in the clinically diagnosed group (26.2% (207/790) vs. 17.3% (142/820), 13.0% (103/790) vs. 9.1% (75/820), 4.6% (36/790) vs. 2.7% (22/820), χ²=18.71, 6.20, 4.07, all P<0.05), but there was no significant difference in the unfavorable outcomes, mortility, and recurrence between these 2 groups (all P>0.05). Conclusions: The onset age of ABM in children is usually within 1 year of age, especially <3 months. The common pathogens in infants <3 months of age are Escherichia coli and Streptococcus agalactiae, and the dominant pathogen in infant ≥3 months is Streptococcus pneumoniae. Subdural effusion and (or) empyema and hydrocephalus are common complications. ABM should not be excluded even if CSF white blood cell counts is within normal range. Standardized bacteriological examination should be paid more attention to increase the pathogenic detection rate. Non-culture CSF detection methods may facilitate the pathogenic diagnosis.
Adolescent ; Brain Abscess ; Child ; Child, Preschool ; Escherichia coli ; Female ; Humans ; Hydrocephalus ; Infant ; Infant, Newborn ; Male ; Meningitis, Bacterial/epidemiology* ; Retrospective Studies ; Streptococcus agalactiae ; Streptococcus pneumoniae ; Subdural Effusion ; beta-Lactamases