Objective To study the effect of p38MAPK on the activity and c-myc protein expression in rat acetaldehyde-induced hepatic stellate cell(HSC),and to investigate the alcoholic liver fibrosis related mechanism.Methods The different concentrations of SB203580 as the p38 specific blocker was adopted to conduct the intervention on rat acetaldehyde-induced HSC.The cellular mor-phological change was observed by the microscope.The cell proliferation was detected by MTT,the cell cycle was analyzed by flow cytometry(FCM),and the expression of c-myc protein was examined by the SABC method.Results (1)after acetaldehyde stimula-tion,HSC was increased in size and proliferated rapidly,but with the added SB203580 concentration increase,the cellular prolifera-tion was slowed down,the cells size was diminished and the deformed cells were increased.(2)The proliferation of acetaldehyde-in-duced HSC was inhibited by different doses of SB203580,and the higher concentration has the more significant inhibiting effect.(3) With the SB203580 concentration increase,the cells at the phase G0 and G1 were increased,while the cells at the phase S were de-creased,at the same time the expression positive rate of c-myc protein was decreased.Conclusion Blocking p38MAPK pathway ac-tivity could inhibit the proliferation of acetaldehyde-induced HSC,which may be related to the down-regulation of C-myc protein ex-pression and blocking the DNA synthesis in cells entering from G0/G1 phase to S phase.

0.05).Conclusion The result suggests that T1 locus genetic polymorphism is weakly associated with asthma.

Objects:To observe the effort of rehabilitation therapy after SPR.Methods:Twenty CP patients with spasticity were operated from December 1996 to October 1997.Occupational therapy was used in conjunction with Bobath method which formed the base of PT.Results:All values of muscle tone before and after operation were significantly different.Strength of many muscular groups was lower than normal level before operation and decreased further postoperatively.Sitting,kneeling and standing posture improved after operation and rehabilitation.There were 9 independent walk cases improved stride length,heel contact pattern and they had no scissors gait after rehabilitation.Conclusion:The goals of rehabilitation training focused on building muscle strength,stretching contractures and building up right posture control,inhibiting abnormal movement pattern,and gradually forming nornmal movement pattern.

OBJECTIVETo explore the effect of different doses of 1,25-(OH)(2)VitD(3) early supplementation on airway inflammation and lung inflammatory factors in baby rats with asthma.

METHODSForty male weaned Wistar rats were divided into normal group, model group, low 1,25-(OH)(2)VitD(3) group, middle 1,25-(OH)(2)VitD(3) group, high 1,25-(OH)(2)VitD(3) group using random number table (8 rats each group). The rats in low, middle and high 1,25-(OH)(2)VitD(3) groups were given 1, 4, 10 µg/kg of 1,25-(OH)(2)VitD(3) every other day by intraperitoneal injection respectively for 25 days. Except normal group, the rats in other groups were challenged with ovalbumin to establish the asthma model. The pathologic changes of lung tissue, the total white blood cell and classified cell counts in bronchoalveolar lavage fluid (BALF) were measured. The concentrations of IL-4, IL-5 and IFN-γ in serum and BALF were measured by ELISA method.

RESULTSThe level of total white blood cell counts in BALF were (5.98 ± 1.67)×10(5)/ml, (25.34 ± 4.28)×10(5)/ml, (17.24 ± 3.3)×10(5)/ml, (9.31 ± 3.37)×10(5)/ml, (45.1 ± 15.75)×10(5)/ml, respectively (F = 33.453, P < 0.01). The percent ratio of EOS in BALF were (1.44 ± 0.78)%, (17.81 ± 6.88)%, (15.00 ± 5.70)%, (8.89 ± 3.66)%, (25.88 ± 5.57)%, respectively (F = 27.299, P < 0.01). The level of IL-4 in serum of normal, model, low, middle and high-1,25-(OH)(2)VitD(3) groups were (0.62 ± 0.54), (7.57 ± 1.04), (3.58 ± 0.56), (2.70 ± 0.78) and (5.27 ± 0.30) pg/ml, respectively (F = 116.287, P < 0.01); IL-5 in resume were (32.20 ± 4.23), (67.14 ± 18.14), (37.51 ± 0.47), (40.69 ± 2.47) and (124.60 ± 36.19) pg/ml, respectively (F = 23.902, P < 0.01); IFN-γ in serum were (79.71 ± 10.08), (49.06 ± 4.46), (59.15 ± 2.51), (59.27 ± 2.33) and (53.85 ± 1.97) pg/ml, respectively (F = 39.954, P < 0.01). Also in BLAF, the IL-4 of all groups were (0.51 ± 0.30), (102.92 ± 54.61), (8.64 ± 4.07), (3.10 ± 1.28) and (33.67 ± 8.1) pg/ml, respectively (F = 24.062, P < 0.01); the IFN-γ were (247.37 ± 189.18), (43.82 ± 13.76), (81.32 ± 17.07), (86.50 ± 14.26) and (59.89 ± 34.17) pg/ml, respectively (F = 7.157, P < 0.01); the IL-5 in BALF were (38.81 ± 0.60), (80.48 ± 17.90), (45.11 ± 1.33), (43.39 ± 1.11) and (149.60 ± 45.87) pg/ml, respectively (F = 35.978, P < 0.01). Pathologic changes in lung of asthma rat groups were obvious. The lung pathologic changes in low and middle dose groups showed a significant improvement compared to the asthma group and high dosage group showed more serious pathologic changes compared to the low and middle dose groups.

CONCLUSIONIntervention with appropriate dose of 1,25-(OH)(2)VitD(3) in the early life could improve lung pathologic changes and reduce the effect of inflammatory factors in air way of baby rat asthma model. However, overdose might play detrimental effect.

Animals ; Asthma ; metabolism ; pathology ; Bronchoalveolar Lavage Fluid ; Disease Models, Animal ; Interferon-gamma ; metabolism ; Interleukin-4 ; metabolism ; Interleukin-5 ; metabolism ; Lung ; metabolism ; pathology ; Male ; Pneumonia ; metabolism ; pathology ; Rats ; Rats, Wistar ; Vitamin D ; administration & dosage ; pharmacology

OBJECTIVETo study the effects of soybean isoflavone on liver lipid, serum lipid, antioxidant index and hepatic lipid metabolism associated factors in nonalcoholic fatty liver rats.

METHODSThirty-six male rats (SD) were randomly divided into four groups by weight: normal control group, nonalcoholic fatty liver disease (NAFLD) model control group, low-dose isoflavone treatment group (10 mg/kg) and high-dose isoflavone group (20 mg/kg), 9 rats in each group. Normal control rats were fed with D12450B (10% fat energy), model control and isoflavone intervention rats were fed with D12492 (60% fat energy). Twelve weeks later, liver lipid, serum lipid and antioxidant index were observed. Liver sterol regulatory element binding protein-1c (SREBP-1c), fatty acid synthase (FAS) and peroxisome proliferators activated receptor alpha (PPAR alpha) were detected by western blotting.

RESULTSLiver triglyceride (TG) in normal control group, NAFLD model control group, low-dose isoflavone group and high-dose isoflavone group were (8.11 ± 4.13), (57.06 ± 16.95), (31.26 ± 10.48), (31.38 ± 13.25) mmol/mg protein, respectively (F = 22.569, P < 0.01); liver free fatty acid (FFA) were (0.030 ± 0.007), (0.042 ± 0.009), (0.038 ± 0.009), (0.032 ± 0.005) µmol/mg protein, respectively (F = 4.857, P < 0.01); liver superoxide dismutase (SOD) activity were (502.29 ± 23.71), (201.83 ± 16.99), (228.93 ± 21.71), (238.08 ± 15.96) U/mg protein, respectively (F = 9.555, P < 0.01); liver malondialdehyde (MDA) were (1.29 ± 0.29), (2.85 ± 0.73), (2.07 ± 0.49), (2.03 ± 0.37) nmol/mg protein, respectively (F = 13.449, P < 0.01); SREBP-1c protein expression were 0.45 ± 0.16, 1.42 ± 0.30, 1.02 ± 0.31, 0.47 ± 0.27, respectively (F = 24.515, P < 0.01); FAS protein expression were 0.27 ± 0.08, 1.97 ± 0.47, 1.35 ± 0.30, 0.49 ± 0.12, respectively (F = 60.361, P < 0.01); PPARα protein expression were 2.03 ± 0.56, 0.41 ± 0.17, 0.81 ± 0.27, 0.66 ± 0.16, respectively (F = 37.97, P < 0.01).

CONCLUSIONSoy isoflavone can reduce the hepatic lipid deposition and increase antioxidant capacity, the mechanism may be related to inhibition of SREBP-1c and activation of PPARα expression in liver.

Animals ; Fatty Acid Synthases ; metabolism ; Fatty Liver ; metabolism ; Isoflavones ; pharmacology ; Lipid Metabolism ; Liver ; drug effects ; metabolism ; Male ; Non-alcoholic Fatty Liver Disease ; PPAR alpha ; metabolism ; Rats ; Rats, Sprague-Dawley ; Soybeans ; chemistry ; Sterol Regulatory Element Binding Protein 1 ; metabolism

OBJECTIVETo observe the effect of recombinant human erythropoietin (rhuEPO) on p-Akt and caspase-9 expressions in the hippocampus of rats with status epilepticus (SE) and explore the neuroprotective mechanism of rhuEPO.

METHODSAdult male SD rats were randomized into control, PTZ, rHuEPO, LY294002 group, and DMSO groups and treated with normal saline (NS), PTZ, PTZ+rHuEPO, PTZ+LY294002+rHuEPO, and PTZ+DMSO+rHuEPO, respectively. The behavioral and electroencephalogram (EEG) changes of the rats were recorded, and the expressions of p-Akt and caspase-9 were detected using immunohistochemistry. The hippocampal expression of caspase-9 mRNA was detected using RT-PCR, and the expressions of Akt and p-Akt proteins were determined with Western blotting.

RESULTSThe p-Akt-positive cell and p-Akt protein expression increased significantly while the caspase-9-positive cell and caspase-9 mRNA expression decreased in rHuEPO group as compared with those in PTZ group (P<0.05). LY294002 treatment prior to rHuEPO injection significantly abolished the effects of rHuEPO on caspase-9 and p-Akt immunohistochemical positivity and caspase-9 mRNA and p-Akt protein expressions (P<0.05).

CONCLUSIONAdministration of rHuEPO activates the PI3K/Akt signaling pathway in SE rats and increases the expression of p-Akt protein to regulate the expression of caspase-9, a regulatory factor of the mitochondrial-dependent apoptotic pathway, and therefore provides anti-apoptotic and neuroprotective effects.

Animals ; Caspase 9 ; genetics ; metabolism ; Erythropoietin ; therapeutic use ; Hippocampus ; metabolism ; Male ; Neuroprotective Agents ; therapeutic use ; Proto-Oncogene Proteins c-akt ; genetics ; metabolism ; RNA, Messenger ; genetics ; metabolism ; Random Allocation ; Rats ; Rats, Sprague-Dawley ; Recombinant Proteins ; Status Epilepticus ; drug therapy ; metabolism

Cycloheximide (CHX) inhibits protein synthesis in most eukaryotic cells and it is a well-known tool commonly used in biochemical research. In this paper, the antiviral spectrum of CHX against several DNA and RNA viruses have been evaluated. CHX showed strong inhibitory activities against several RNA viruses such as HIV-1, influenza viruses, coxsackie B virus, enterovirus (EV71) and several DNA viruses such as HSV and HCMV. Especially the strong inhibitory activities of CHX against coxsackie B virus and enterovirus caught our attention, since effective drugs available in clinic are limited. The SAR of CHX derivatives also has been discussed in the paper. The hydroxyl group at C-2' and carbonyl group at C-2" of CHX are essential for its antiviral activity. And modification to these groups results its derivatives' antiviral activities reduced or lost.
Antiviral Agents ; chemical synthesis ; chemistry ; pharmacology ; Cell Line ; Cycloheximide ; analogs & derivatives ; chemical synthesis ; chemistry ; pharmacology ; DNA Viruses ; drug effects ; Enterovirus ; drug effects ; Enterovirus B, Human ; drug effects ; Humans ; RNA Viruses ; drug effects

OBJECTIVETo discuss the problem difficult to be presented for nerves and blood vessels in the 3D reconstruction of acupoints through studying 3D reconstruction of Jianliao (TE 14).

METHODSMuscles and other tissues were segmented by applying cointeractive segmentation method based on chromatic characteristic space; the nerve and blood vessels can be reconstructed by establishing mathematics model, and the needle-inserting animation of Jianliao (TE 14) could be obtained by running script file.

RESULTSDuring the course of 3D needle-inserting animation of Jianliao (TE 14), the spatial location between all kinds of tissues including the nerve and blood vessels and the needle body could be systematically observed.

CONCLUSIONThe difficulty of presenting the nerve and blood vessels in the study on 3D reconstruction of acupoints can be resolved by establishing mathematics model. The generation of 3D animation for acupoints with the nerve and blood vessels is benefit to acupuncture teaching and study on the essence of acupoints and channels.

Acupuncture Points ; Humans ; Imaging, Three-Dimensional ; Muscles ; anatomy & histology ; Nervous System ; anatomy & histology

Objective To investigate the characteristics about the prevalence of thyroid nodules detected on color Doppler uhrasonography(US) in people residing in Dalian City who undergo regular physical examinations, as well as its relative factors. Methods All thyroid sonographic and questionair procedures were performed in the 6020 people above 18-year-old living in the four districts of Dalian City for at least 5 years, who were examined at the department of health medical center of Dalian Municipal Central Hospital from May 2006 to March 2007. Urinary iodine concentration was measured in 2039 healthy adults selected by age layers in our study population. Moreover, urinary iodine concentrations were determined in 220 children aged 8-10 years old who were randomly chosen from four communities (55 children per elementary school from each community). The analysis of logistic regression was conducted for the risk factors linked to thyroid nodules. Results The prevalence of thyroid nodules in the 6020 adults was 38.5%(2319/6020), in which nodules sized between 0.3 and up to 0.5 cm were found in 17.1% (1030/6020), and those above 0.5 cm in 21.4% (1289/6020). Ultrsonography revealed solitary nodules in 17.2% (1036/6020), multinodular goiter in 21.3% (1283/6020). Fifty-four point nine percent (1272/2319) thyroid nodules showed solid internal echographic structures, 30.2%(701/2319) mixed and 14.9%(346/2319). The thyroid nodule detected rate in female individuals was 46.1% (1102/2393), among whom multinodular goiter [59.1% (651/1102)] was more than solitary nodules[40.9(451/1102)] in female; while only 33.6%(1217/3627) of male were detected to have thyroid nodule, there was a difference between the genders (χ2=95,079,P<0.01). The mediam urinary iodine concentration(MUI) was 184.32 μg/L in children and 216.75 μg/L in the health adults, moreover, it was 216.55 μg/L and 217.00 μg/L in the people with thyroid nodules and those without nodules without a significant difference (P>0.05). The rate of thyroid nodules gradually increased with age(χ2=344.998, P<0.01). The occurance of thyroid nodules was significant associated with gender and age(P<0.01). Conclusions The nutritional iodine intake in the four communities of Dalian City are adequate. The prevalence of thyroid incidentalomas is relatively high in this group of people receiving medical examination.

Objective To undersyand the genetic characteristics of Enterovirus Type 71 (EV 71 )isolated from clinical specimens of children with hand-foot-mouth disease (HFMD)in Shaoxing city from 2012 to 2013.Methods RNA was extracted from specimens collected from stool,throat swab and vesicle from children with HFMD,and EV 71 were identified by reverse transcriptase polymerase chain reaction (RT-PCR).Ten positive samples were isolated and were amplified by segmented PCR,then,they were spliced into a full-length after sequenced according to the reference strains. Homology analysis on region VP1 and phylogenetic tree were carried out based on nucleotide sequence and amino acid sequence.Results The results indicated that the ten isolated strains were all EV 71 positive.Sequence alignment of VP1 showed that the nucleotide and amino acid homogeneity of these 10 strains were related to C4a genotypes,with 95.06%-97.87% and 93.60%-98.99% respectively.Phylogenetic tree based on VP1 indicated that these 10 strains all belonged to C4a genotype.Conclusion The identified EV 71 strains isolated from HFMD children in Shaoxing city belong to genotype C4a.