OBJECTIVEEffects of ginsenoside Rb1, Rg1 and Re on neurotrophic factor signal transduction pathway using liposome-mediated transfection of eukaryotic cells approach.

METHODThe injury model was established by treating SH-SY5Y cells with 0.6 mmol x L(-1) of corticosterone (CORT) by 24 h. SH-SY5Y cell were pretreated with CORT for 30 min followed by co-treated with 120,60 and 20 micromol x L(-1) of Rb1, 120, 80 and 40 micromol x L(-1) of Rg1 and 120, 80 and 40 micromol x L(-1) of Re for 24 h. Cells viability was determined by Cell Counting Kit (CCK) assay. CREB expressing Luciferase reporter gene was constructed and transfected with plasmid containing hRaf, hcAMP, hAkt, hCaMK gene into human embryonic kidney (HEK293) cells using liposornal transfection reagent lipofection 2000. The expression of CREB before and after it addion of Rb1, Rg1 and Re was examined by Luc assay system and Western blotting.

RESULTCompared with normal control group, CORT significantly decreased the viability of SH-SY5Y cells to 67.21% (P < 0.01). CCK results show that Rb1 (60 micromol x L(-1)), Rg1 (80 micromol x L(-1)) and Re (80 micromol x L(-1)) on SH-SY5Y cells have significant protective effect (P < 0.01). Lucassay and Western blotting results show that the gene and protein levels of CREB increased significantly through the pathway of Raf and Akt with Rb1 and Rg1 (P < 0.01), Re can increase significantly the gene and protein levels of CREB through the pathway of Raf and CaMK II.

CONCLUSIONRb1, Rg1 and Re protects SH-SY5Y cells from CORT-induced damage and the neuroprotective mechanism may be associated with the Raf-CREB, Akt-CREB and CaMK II -CREB pathways.

Calcium-Calmodulin-Dependent Protein Kinase Type 2 ; genetics ; metabolism ; Cell Line ; Cell Survival ; drug effects ; Cyclic AMP Response Element-Binding Protein ; genetics ; metabolism ; Drugs, Chinese Herbal ; pharmacology ; Genes, Reporter ; Ginsenosides ; pharmacology ; Humans ; Panax ; chemistry ; Proto-Oncogene Proteins c-akt ; genetics ; metabolism ; Signal Transduction ; drug effects ; raf Kinases ; genetics ; metabolism

Objective To observe the effect of propofol on cognitive functions and hippocampus tissue in hyperlipidemia aged rats.Methods Seventy-six aged male SD rats were selected and randomly divided into basal diet with propofol injection (group PI), basal diet with normal saline injection(group N1), high-fat diet with propofol injection (group P2) and high-fat diet with normal saline injection (group P2), with 19 rats in each group.Eight weeks later,group P1 and P2 received intraperitoneal injection of propofol 100 mg · kg-1 · d-1 for 5 days.While in group N1 and N2, rats received the same intraperitoneal injection of equal volume normal saline.One day after the last injection, escape latency and space exploration were detected by Morris water maze in the next six days.One hour after the last water maze test, the serum and hippocampus were sampled to detect the expression of beta-amyloid protein and receptor for advanced glycation endproducts(RAGE) by immunohistochemical method and ELISA respectively.Results In place navigation tests,the escape incubation period(98.20±25.40)s in group P1 was obviously longer than that in N 1 group (47.50± 11.08) s (P＜ 0.01).Compared with P2 (99.79 ± 20.38) s, escape incubation period was shortened in N2 (50.70± 20.55) s (P＜ 0.05).There was no significantly difference between N2 and N1 (P＞0.05), while the escape incubation period in group P2 was longer than P1 (P＜ 0.05).In spatial probe test,platform passing number ((2.86 ±1.46)times) in group P1 were less than that in N1 group ((7.50± 1.70) times, P＜0.05).In group N2, the platform passing number ((6.60 ±3.91) times) were more than those in group P2 ((1.16 ±1.16)times, P＜0.05) while there was no significant difference between group N1 and N2 (P＞0.05).Times of crossing platform in group P2 were less than that in P1 group (P＜0.05).Compared with group N1((147.83±60.88) ng/L) and N2((152.73±87.50) ng/L) ,the expression of RAGE protein was increased in group P1((629.89±110.33) ng/L) and P2((229.89±53.20) ng/L) (P＜0.05).There was no significant difference between N1 and N2 groups(P＞0.05) ,while the expression of RAGE protein in P1 group was lower than that of P2(P＜0.05).In immunohistochemical test, positive expression cells in P1 ((18.49± 1.53) and P2 (25.67±3.08)) were higher than that in group N1(9.33±2.31) and group N2(12.14±2.52) (P＜0.05) ,while there was no significant difference between group N1 and N2(P＞0.05).Conclusions Anesthetic dose of propofol can injure spatial learning and memory ability in aged rats.Hyperlipidemia might act synergistically with propofol.

Objective To compare the quality of life ( QOL) in different family life cycle residents and analyze its influencing factors. Methods Based on the stratified cluster sampling,517 married residents from three communities of Dongguan city were chosen to be investigated by a questionnaire on the general status and the MOS health survey (SF-36).The One-Way ANOVA and Multiple Regression Analysis were used to analyze the data. Result There were significant differences on the seven domains of the SF-36 ex-cept of physical pain in different family life cycle residents (P<0.05) . The scores of different domains at the retirement or senior years were the lowest ( ranging from 37.10-59.81) ,and the scores of different domains at the child-bearing period were highest (ranging from 37.10-59.81). The results of Multiple Linear Stepwise Regression showed that the QOL of different family life cycle residents were influenced by some factors. The influencing factors on PCS at the child-bearing period were income (β=1.51) and life events (β=-6.13), while that at the period of families with adolescents were economic income (β=1.81) and age (β=-0.65);that at the period of empty nest were economic income (β=-3.64) and age (β=-0.65);and that at the re-tirement or senior years were unhealthy living habit (β=-15.06),age (β=-0.56) and income (β=3.06). The influencing factors on MCS at the child-bearing period was medical insurance (β=5.86),while that at the period of families with adolescents were medical insurance (β=6.28),education (β=2.32),life events (β=-4.68) and occupation (β=-5.53);that at the period of the empty nest were age (β=-0.61) ,gender (β=-10.35) and chronic disease (β=-8.35);that at the retirement or senior years were age (β=-0.27) , economic income (β=2.55) and unhealthy living habit (β=-6.95) . Conclusion The influencing factors of QOL for different family cycle residents are not conformity with each other. It suggested that in order to im-prove the QOL of residents, the community health service including health education and health promotion should be based on different family life cycle.

OBJECTIVETo observe the influence of earthquake crush injury on postoperative wound healing of extremity fractures.

METHODSThe study involved 85 patients with extremities fracture underwent internal fixation operation in 3 group, including 28 earthquake casualties with crush injuries in observation group, 27 earthquake casualties without crush injuries in control I group and 30 local patients during the same period in control II group. Urine routine, blood creatine kinase (CK) and wound conditions of patients in 3 groups were observed respectively.

RESULTSThere was no significant difference in Urine routine and blood CK between 3 groups and was significant difference in wound conditions between observation group and each control group.

CONCLUSIONEarthquake crush injuries can influence the postoperative wound healing of extremity fractures.

Adult ; Aged ; Aged, 80 and over ; China ; Creatine Kinase ; blood ; Crush Syndrome ; complications ; surgery ; therapy ; Disasters ; statistics & numerical data ; Earthquakes ; Female ; Fractures, Bone ; complications ; surgery ; Humans ; Male ; Middle Aged ; Postoperative Period ; Urine ; chemistry ; Wound Healing

To simplify the macrocyclic fragment and to modify the zinc binding group of the natural product apicidin, two series of S-hexyl (heptyl) ethanethioate derivatives were designed and synthesized. Twenty-six compounds were synthesized and confirmed with 1H NMR, IR, MS and HR-MS spectrum, which were not reported. Take vorinostat as control, their antiporliferative activities against cancer cell lines, MCF-7 and HL-60, were tested with MTT assay or trypan blue staining method. Generally in both series it was found that, the chiral carbon atom at 7 position is not necessary, compounds II-1, II-3, II-6 and II-13 showed good activity on HL-60 cells in vitro, with the IC50 values less than 10 micromol x L(-1). II-7 and II-8 showed stronger activity against MCF-7 than Vorinostat, with the IC50 of 3.19 and 6.29 micromol x L(-1), respectively.
Antineoplastic Agents ; chemical synthesis ; chemistry ; pharmacology ; Cell Proliferation ; drug effects ; Drug Screening Assays, Antitumor ; HL-60 Cells ; Histone Deacetylase Inhibitors ; chemical synthesis ; chemistry ; pharmacology ; Humans ; Inhibitory Concentration 50 ; MCF-7 Cells ; Peptides, Cyclic ; chemical synthesis ; chemistry ; pharmacology ; Structure-Activity Relationship

Adenoids ; diagnostic imaging ; pathology ; Child ; Child, Preschool ; Female ; Humans ; Hypertrophy ; Magnetic Resonance Imaging ; Male ; Radiographic Image Enhancement ; methods ; Tomography, Spiral Computed ; methods

In the development of diabetic nephropathy (DN), reactive oxygen specie (ROS) over much in vivo leads to oxidative stress(OS)-related renal injuries, which are characterized by the structural and functional changes in glomerular and renal tubular cells in morphology. The regulative approaches of OS involve the several signaling pathways, in which, both p38 mitogen-activated protein kinase (MAPK) signaling pathway and adenosine monophosphate-activated protein kinase (AMPK) signaling pathway play the important roles as the target of anti-oxidants. The interventional actions of Chinese herbal compound prescriptions and the extracts of single Chinese herbal medicine (CHM) on OS in the kidney in DN include regulating the balance between ROS and antioxidants, reducing the production of AGEs, inhibiting the expression of growth factors and intervening the activity of signaling pathways.
Animals ; Diabetic Nephropathies ; drug therapy ; metabolism ; Drugs, Chinese Herbal ; administration & dosage ; Humans ; Kidney ; drug effects ; metabolism ; Oxidative Stress ; drug effects ; Signal Transduction ; drug effects ; Treatment Outcome

OBJECTIVETo investigate the feasibility and reliability on the quantitative evaluation of Colles' fracture by multislice CT (MSCT) multiplanner reconstruction (MPR).

METHODSA total of 36 patients with Colles' fracture from July 2011 to July 2014 were investigated in this study. There were 11 males and 25 females with a mean age of (42.5 ± 5.4) years old (ranged 35 to 72 years). All the patients underwent anteroposterior and lateral X-ray films and MSCT scans on wrist joints within 2 days after trauma. Images were sent to the workstation through picture archiving and conserving system (PACS). One associate chief physician independently and respectively measured the dorsal intercalation depth of distal fracture block, palmar angle and dislocation degree of wrist articular surface collapse on anteroposterior and lateral X-ray film and MSCT-MPR. The time interval between the two measurements was 2 weeks. All the data between the first and second measurement on X-ray and MPR and the mean value between the X-ray and MPR was examined with paired t-test. The pearson analyzed their correlation.

RESULTSAmong the 35 cases, 35 cases of palmar angle, 21 cases of intercalation depth and 16 cases of dislocation of wrist articular surface collapse could be measured on both X-ray and MPR. For the above parameters, the first measurement results were (12.5 ± 3.6)°, (4.5 ± 2.1) mm, (3.7 ± 1.6) mm and the second measurement results were (4.8 ± 2.2)°, (6.4 ± 3.6) mm, (2.5 ± 1.2) mm on X-ray films respectively. The first measurement results on MPR were (14.5 ± 5.3)°, (4.2 ± 1.2) mm, (5.7 ± 2.3) mm, and the results were (13.2 ± 2.6)°, (4.7 ± 2.2) mm, (4.6 ± 2.1) mm for the second measurement respectively. The three parameters between the first and second measurement on plain film had statistical difference and low correlation (r = 0.681, 0.640, 0.345, P < 0.05). The data between the first and second measurement on MPR showed that the dislocation degree of wrist articular surface collapse had statistical difference (P < 0.05) and no statistical significance was found for the other two parameters (P > 0.05), with the moderate correlation (r = 0.954, 0.854, 0.642). The three parameters had low or moderate correlation with each other on X-ray (r = 0.454, 0.532, 0.378, P < 0.05), compared with the mean value on MPR.

CONCLUSIONUsing MSCT MPR images may carry on the multiple parameter measurement of Colles fracture, to make quantitative evaluation, and repeated measurement is better reliability.

Adult ; Aged ; Colles' Fracture ; diagnostic imaging ; Feasibility Studies ; Female ; Humans ; Image Processing, Computer-Assisted ; Male ; Middle Aged ; Multidetector Computed Tomography ; methods

Adult ; Antibodies ; blood ; Antiviral Agents ; therapeutic use ; DNA, Viral ; blood ; Female ; Hepatitis B Surface Antigens ; blood ; Hepatitis B e Antigens ; blood ; Hepatitis B virus ; drug effects ; Hepatitis B, Chronic ; blood ; drug therapy ; virology ; Humans ; Interferons ; immunology ; therapeutic use ; Liver Function Tests ; Male ; Middle Aged ; Young Adult

Na(+)-H(+) exchangers (NHE) are major membrane proteins that have been identified as signal transduction mediators in the regulation of cell differentiation and important membrane ion transporters in the regulation of the intercellular pH and the cell volume. NHE are composed of at least six isoforms and activated in growth factor-regulated cell differentiation. However, little is known about the differential regulation of NHE expression in the development. In the present study, we studied developmental regulation of the expression of NHE isoforms in human fetal tissues by comparing the expression of various isoforms between two developmental stages, i.e., week 11 (11 W) and week 16 (16 W). The results demonstrated that NHE1 transcripts were expressed ubiquitously. In comparison to the expression at 16 W, the level of NHE1 transcripts was low and varied significantly in a tissue-specific pattern at 11 W, suggesting that the house-keeping function of MHE1 occurs at 11 W or earlier and becomes well established at least as early as at 16 W. The tissue-specifically restricted expression of NHE2 and NHE3 was regulated at 11 W and 16 W in an opposite tendency, supporting the overlapping relationship between NHE2 and NHE3 in the tissue distribution as reported in adults. NHE5 expression was relatively ubiquitous at 11 W and became restricted in the cerebellum at 16 W, suggesting that the restrictive expression of NHE5 in the brain occurs later than that of other isoforms. The present study demonstrates a space time-dependent regulation of the tissue-specific expression pattern of NHE isoforms during human development between 11 W and 16 W. The results also suggest that at 16 W or earlier the expression pattern of developing tissues becomes similar to that of adult tissues. The observed developmental regulation of NHE expression provides a molecular basis for further study of the function and regulation of NHE gene during development.
Fetus ; embryology ; metabolism ; Gene Expression Regulation, Developmental ; physiology ; Humans ; Organ Specificity ; Protein Isoforms ; metabolism ; physiology ; RNA, Messenger ; metabolism ; physiology ; Sodium-Hydrogen Exchangers ; metabolism ; physiology ; Tissue Distribution