China ; Combined Modality Therapy ; Drugs, Chinese Herbal ; therapeutic use ; Humans ; Medicine, Chinese Traditional ; Phytotherapy ; Severe Acute Respiratory Syndrome ; drug therapy ; prevention & control ; Taiwan

Objective To determine the changes in expression of Ca2+ channel ?1B subunit mRNA in dorsal root ganglion (DRG) neurons in a rat model of neuropathic pain. Methods Twenty-four SD rats weighing 160-220g were randomly divided into 3 groups with 8 animals in each group: (1) neuropathic pain group; (2) sham-operated group and (3) control group. In neuropathic pain group the animals were anesthetized with intraperitoneal phenobarbital 50 mg?kg-1 . The left L5 spinal nerve was exposed and ligated and cut. In sham-operated the left L5 spinal nerve was exposed but not ligated and cut. Control group underwent no operation. Bilateral paw withdrawal threshold to von Frey hair stimulation was measured before and 7, 14 days after operation. The animals were killed on the 14th day after operation and the left L5 DRGs were obtained for determination of Ca2+ channel ?1B subunit mRNA by in situ hybridization. Results Mechanical allodynia developed in neuropathic pain group but not in sham-operated group. The expression of Ca2+ channel ?1B subunit mRNA was significantly lower in neuropathic pain group (0.033 ? 0.011) than in sham-operated group (0.065 ? 0.042) and control group (0.066 ? 0.034) (P

In order to analyze the correlation between critical residues in the catalytic centre of BSH and the enzyme substrate specificity, seven mutants of Lactobacillus salivarius bile salt hydrolase (BSH1) were constructed by using the Escherichia coli pET-20b(+) gene expression system, rational design and site-directed mutagenesis. These BSH1 mutants exhibited different hydrolytic activities against various conjugated bile salts through substrate specificities comparison. Among the residues being tested, Cys2 and Thr264 were deduced as key sites for BSH1 to catalyze taurocholic acid and glycocholic acid, respectively. Moreover, Cys2 and Thr264 were important for keeping the catalytic activity of BSH1. The high conservative Cys2 was not the only active site, other mutant amino acid sites were possibly involved in substrate binding. These mutant residues might influence the space and shape of the substrate-binding pockets or the channel size for substrate passing through and entering active site of BSH1, thus, the hydrolytic activity of BSH1 was changed to different conjugated bile salt.
Amidohydrolases ; genetics ; metabolism ; Bile Acids and Salts ; metabolism ; Escherichia coli ; metabolism ; Gene Expression ; Lactobacillus ; enzymology ; genetics ; Substrate Specificity

Objective To investigate the changes of expression of Fas-associated proteins named Fas-associated death domain protein(FADD)and death-associated protein(Daxx)in the ischemic penumbra following transient focal cerebra ischemia in rats.Methods ①Adult male Sprague-Dawley rats were randomly divided into the sham-operated group and the cerebral ischemia model group.Rats underwent right middle cerebral artery occlusion(MCAO)for 2 h and reperfusion for 1,3,6,12 and 24 h using an intraluminal suture technique.The expression of FADD and Daxx mRNA and protein were measured with methods of immunohistochemistry.Western blot and reverse transcription-polymerase chain reaction(RT- PCR)respectively were used in the ischemic penumbra of rats.②Double-label fluorescence confocal laser scanning microscopy(CLSM)was performed to monitor FADD and Daxx intracellular location before and after ischemia.Results RT-PCR,Immunohistochemistry,Western blot experiments indicated that a very low level of FADD mRNA and protein were detected in the cerebral cortex of sham rats.The expression level both of FADD mRNA and protein increased significantly at 3 h after reperfusion,peaked at 12 h,then declined markedly at 24 h in the ischemic penumbra of model rats.RT-PCR,Immunohistochemistry indicated that a relatively high level of Daxx mRNA was detected in the cerebral cotex of sham rats.The expression level of Daxx mRNA increased significantly at 3 h after reperfusion and persisted to 24 h at a high level,whose protein had a same change of expression level in the ischemic penumbra of model rats. Immunofluorescence double-staining laser scanning by CLSM showed that the immunoreactivity of FADD was located in cytoplasm,and the intracellular translocation of the immunoreactivity of Daxx from nucleus to cytoplasm was monitored by measuring the green fluorescence after ischemia.Conclusion The transient upregulation of FADD and the persistant high level of expression of Daxx may contribute to neuronal apoptosis following cerebral ischemia/reperfusion.

Animals ; Brain ; drug effects ; metabolism ; Male ; Mice ; Mice, Inbred Strains ; Morphinans ; pharmacology ; Morphine Dependence ; metabolism ; Nitric Oxide Synthase Type I ; metabolism

Objective To summarize the experience in diagnosis and treatment of primary splenic tumor. Methods The clinical data of 43 cases of primary splenic tumor patients treated in our hospital between January 1990 to January 2003 were retrospectively analyzed. Results The detectable rate of B-US was 95.3% and that of CT was 96.6%. All the 43 patients included 28 with benign tumors and 15 with malignant ones. The median follow-up period was 6.8 years(2 months-15 years). The 5-year overall survival of benign tumor was 100% and The 1-,3-and 5-year overall survival rates of malignant tumor were 80%, 53.3 % and 26.7%, respectively. Conclusion The image methods such as B-US and CT are the main diagnostic methods for primary splenic tumor. Early diagnosis, radical operation and combined therapy are important for improving the prognosis of the tumor.

Objective:To observe the efficacy of acupuncture at points of Shaoyang meridians plus moving cupping on neck and shoulder for migraine. Methods:A total of 64 migraine cases were randomly allocated into an observation group and a control group, 32 cases in each group. Random number table method was used in allocation. Acupuncture at points of Shaoyang meridians and cupping on neck and shoulder were used for cases in the observation group, which contain acupuncture 5 times a week and cupping once a week. Oral flunarizine hydrochloride capsules were used for cases in the control group, 10 mg for each dose, 1 dose a day. 2 weeks constitutes a course of treatment. The patients were treated for two courses of treatment in both groups. After that, the changes of visual analogue scale (VAS) and the migraine disability assessment questionnaire (MIDAS) were observed, as well as the clinical efficacy. Results:The total effective rate and recovery and marked effective rate in the observation group were 93.8% and 71.0% respectively, versus 78.1% and 43.8% in the control group, showing statistical significant differences (both P<0.05). There were significant decreases in VAS and MIDAS scores after treatments in both groups (both P<0.05). VAS and MIDAS scores in the observation group were significantly different from those in the control group (both P<0.05). Conclusion: Combining acupuncture at points of Shaoyang meridians and cupping on neck and shoulder can relieve headache and reduce influence of migraine on life. It can produce a better efficacy than oral flunarizine hydrochloride capsules in treating migraine patients.

Objective To investigate the clinical application of the combined the anterior malleolus flap and anterior tibia flap. Methods Based on the dissection of the perforating branches of anterior tibial artery on the middle and inferior section, the combined the anterior malleolus flap and anterior tibia flap was designed to repair the necrotic skin of anterior foot for 5 patients. The sizes of the flaps ranged from 17 cm×10 cm-10 cm× 5 cm. And the area of the flap was from tibial tuberosity(upper bound) to the line between internal malleolus and external malleolus (lower bound), and from the median line of one side of leg to the other side. Results Postoperatively, all flaps survived, and the primary healing of transplanted skin in donor site was achieved. The texture of flaps were excellent, the phenomenon of abrasion did not happen, and the clinical therapeutic efficacy was satisfactory after a follow up of 2-24 months. Conclusion It's a good method that combined the anterior malleohls flap and anterior tibia flap, which not only could enlarge the area of the flap but also has reliable blood supply, in repair of large size skin defect of anterior foot.

Objective To investigate the relation of the peripheral blood C-reactive protein (CRP)and procalcitonin (PCT) and multiple organ dysfunction syndrome( MODS ) for patients with multiple trauma.Methods A total of 136 patients with multiple trauma were divided into MODS group (49 cases) and non MODS group (87 cases),and 50 healthy volunteers were chosen as control group. Peripheral blood CRP and PCT concentration were detected at different times. Results The highest concentration of peripheral blood CRP in MODS group was appeared on 48 h [(38.7 ± 2.7) mg/L], CRP concentrations in MODS group were significantly different with non MODS group and control group (P ＜0.05). The highest concentration of peripheral blood PCT in MODS group was appeared on 24 h [(20.3 ± 1.7)μ g/L], PCT concentrations in MODS group were significantly different with non MODS group and control group (P＜ 0.05). Conclusions CRP and PCT are relevant to the occurrence of MODS in trauma acute stage. The observation of peripheral blood CRP and PCT concentrations can predict the occurrence of MODS.

Acute Disease ; Diagnosis, Differential ; Drugs, Chinese Herbal ; therapeutic use ; Humans ; Medicine, Chinese Traditional ; Phytotherapy ; Stroke ; drug therapy