ObjectiveTo investigate the effect of defibrase on hemorheology on the patients with acute ischemic stroke. Methods40 patients with acute ischemic stroke were treated by defibrase and the change of hemorheology was recorded before and after the treatment respectively. ResultsThe whole blood viscosity, the blood plasma viscosity, RBC aggregate index and RBC hematocrit got reduced on different degrees.Conclusions Defibrase can reduce the blood viscosity,inhibit RBC aggregate,and improve the micro-circulation. It is helpful to recover the nerve function earlier.

Objective To investigate the effects of B.adolescentis and L.acidophilus in treatment of dextran sulphate sodium (DSS)-induced ulcerative colitis(UC) in mice and their potential mechanisms. Methods Seventy-five BABL/C mice were randomly divided into control,saline (NS),B.adolescentis BF0624 treatment (B),L.acidophilus LT0637 treatment (L) and salicylazosulpha-pyridine treatment (S) groups.Except control group,the other four groups were received DSS to induce ulcerative colitis. The weight-loss,fecal trait and bleeding were recorded every day.Colonic length and histological scores were evaluated on day 3,5 and 7.The gene and protein expression of hot shock protein (HSP)70, glucocorticoid receptor (GR),interleukin (IL)-10 and tumor necrosis factor (TNF)-α were detected by Western blot and reverse polymerase chain reaction (RT-PCR) respectively.Results B.adolescentis BF0624 and L.acidophilus LT0637 could relieve the inflammatory reaction of the experimental UC.The DAI scores were 1.84±0.4 in L group on day 3,which was lower than that in NS group (2.8±1.0).The DAI scores in all treatment groups were decreased on day 5.Compared with NS group[(8.1±0.6)cm ], the colon length on day 8 were (9.0±0.6)cm in B group,(9.35±0.6)era in L group and (8.8±1.1)cm in S group (P＜0.05).The colonic mucosa was improved pathohistologically in L group (6.0±1.0) on day 8.The expression of HSP70 and IL-10 in B and L groups were up-regulated and the expression of TNF-α was down-regulated.Conclusions Both B.adolescentis BF0624 and L.acidophilus LT0637 were effective in treatment of acute ulcerative colitis.The potential mechanism of two probiotics may be related with up-regulation of HSPT0 and IL-10 expressions and down-regulation of TNF-α expression.

Objective To investigate the daily total fluoride intake in relating to the prevalence of skeletal fluorosis in two villages in Jiangsu Province,in order to provide the scientific evidences for the control and prevention of endemic fluorosis.Methods Adults sampled from a high-fluoride Village,Wamiao,and a low-fluoride Village,Xinhuai,were surveyed in this study according to the fluoride concentration in their household shallow well.The average daily total fluoride intake from difierent sources and the skeletal fluorosis were investigated in each subject.Then the subjects from two villages were allocated into five subgroups(＜2.00,2.00～,3.00～,4.00～,≥5.00 mg/d),the relation fluoride intake and prevalence of osteofluorosis was analyzed.Results The prevalence of skeletal fluorosis in Wamiao Village was 31.06%(41/132),but no skeletal fluorosis case(0/35)was found in Xinhuai Village.According to the daily total fluoride intake,subjects with higher daily total fluoride intake tended to associated with a higher prevalence of skeletal fluorosis in a significant dose-response relationship(regression equation:y=2.624-6.855x+3.424x2:r=0.997).The benchmark dose lower limitation of daily total fluoride intake with 95% confidencewas 2.50 mg/d calculated according to this dose-response relationship,the reference dose(RfD)was 2.50 mg/d.In Wamiao Village a significant difference was also found between daily total fluoride intake in 41 subjects[(5.09±1.20)mg/d]with X-ray detectable skeletal fluorosis and in 91 subjects[(3.08±1.12)mg/d]without X-ray detectable skeletal fluorosis(t=-9.32,P＜0.01).Conclusions These findings indicate that the daily total fluoride intake has a significant dose-response relationship with the prevalence of skeletal fluorosis in an endemic fluorosis area associated with high-fluoride drinking water;and the RfD in this study was lower than that in the national standard of"Chinese hygienic standard for daily total fluoride intake(WS/T 87-1996)"(3.50 mg/d).

OBJECTIVETo study the chemical constituents of the dried roots of Zanthoxylum dimorphophyllumr. spinifolium and to find out the active constituents of the plant.

METHODModern chromatography was used to purify chemical constituents, and their structures were identified by various spectral methods.

RESULTFour compounds were isolated and identified as isopimpinellin (I), xanthoxyletin (II), 6-(2', 3'-dihydroxy-3'-methyl-butyl)-7-hydroxy-2H-1-benzopyran-2-one (III), 6-(2'-O-beta-D-glucopyranosyloxy, 3'-dihydroxy-3'-methybutyl)-7-hydroxy-2H-1-benzopyran-2-one (IV).

CONCLUSIONAll of the above compounds were isolated from the above mentioned plant for the first time.

Coumarins ; chemistry ; isolation & purification ; Furocoumarins ; chemistry ; isolation & purification ; Plant Roots ; chemistry ; Plants, Medicinal ; chemistry ; Zanthoxylum ; chemistry

OBJECTIVEHirschsprung's disease (HD), one of the most common causes resulting in lower intestinal obstruction in children, is prone to be misdiagnosed or to be missed from diagnosis because of its atypical clinical symptoms and inconspicuous morphological findings by barium enema X-ray. Recently, this situation has been largely ameliorated by increased comprehension of anorectal kinetics and improvement of instrument for measurement of anorectal pressure. By now, anorectal manometry (ARMM) has been regarded as a routine means for functional assessment and diagnosis for anorectal disease. Nevertheless, the accuracy rate of diagnosis of HD in neonate by ARMM remains to be elucidated. In this study the clinical evaluation of anorectal manometry as an early diagnostic method for neonates with Hirschsprung's disease was appraised.

METHODSForty-two HD patients defined by pathological study of rectal tissue obtained via rectal mucous membrane biopsy or operation were recruited in this study. ARMM was performed in liquid transmission using PC polygraph high rate gastrointestinal dynamical detection system (PC Polygraf HR, CTD-synectics, Sweden), with 4-lumen catheter with which a small 5-cm-long balloon was connected at the terminus. All children were positioned on their left side or back during the procedure and the pressure transducers were placed in the mid-axillary line level. The results of ARMM performed before operation or biopsy were compared with the results of barium enema X-ray testing. The decrease of internal anal sphincter pressure as rectoanal inhibitory reflex (RAIR) was measured based on the fluctuation curve of pressure detected. HD was defined when no decrease of anal catheter pressure was detected after insufflation (RAIR positive), and suspected HD state was assessed with the presentation of incomplete relaxation or positive/negative results coexisted (RAIR abnormal) in canal.

RESULTSThirty patients (71.43%) were diagnosed as HD by ARMM including 18 patients who showed negative response to RAIR and 12 patients whose response was abnormal. While barium enema examinations were carried out in all the 45 patients, the results showed 5 HD patients and 14 suspected HD patients, giving an overall diagnostic accuracy of 45.24%. There were also 16 patients with positive ARMM response and negative barium enema findings together, and 5 patients with negative ARMM results and positive barium enema findings at the same time. There was a significant difference between the two diagnostic methods (chi(m)(2) = 4.76, P < 0.05).

CONCLUSIONAnorectal manometry seems to be a more reliable method for diagnosis of Hirschsprung's disease in neonate than barium enema X-ray. Because ARMM is a simple, safe and non-invasive method, it can be used as a screening test of choice in neonates with clinically suspected HD. But for final diagnosis, it is reasonable to combine ARMM with other diagnostic methods in HD patients.

Anal Canal ; physiopathology ; Barium Sulfate ; Enema ; Hirschsprung Disease ; diagnosis ; Humans ; Infant, Newborn ; Manometry ; Rectum ; pathology ; physiopathology

A comprehensively comparison of the chemical profiles between sun-drying BJ (NBJ) and sulfur-fumigated BJ (SBJ) was conducted by HPLC analysis and the discrepant peaks were identified or tentatively assigned by HPLC-ESI-MSn. A total of 32 chemical components were used for qualitative comparison. Meanwhile, a quantitative comparison of BJwere conducted by HPLC analysis and determining seven compounds from 3 NBJ and 3 SBJ samples dramatic chemical changes were found. After sulfur fumigation, the contents of flavonoids glycosides and phenolic acids were remarkably reduced, but the contents of flavonoids aglycones were significantly increased. Multivariate statistics, including principle component analysis (PCA) and partial least squares discriminate analysis (PLS-DA) were used to investigate the potential damaging effect of sulfur-fumigating process. The PCA score plots showed six samples were clearly classified into the sun-drying and sulfur-fumigating groups. And according to VIP >1, the most important chemical markers were apigenin, luteolin and 3,5-dicaffeoylquninic acid which could be used to distinguish NBJ and SBJ samples. Combining the results of qualitative and quantitative analysis, it showed that the sulfur fumigation has a significant effect on BJ.
Chromatography, High Pressure Liquid ; Chrysanthemum ; chemistry ; Fumigation ; Least-Squares Analysis ; Principal Component Analysis ; Sulfur

Antiviral Agents ; therapeutic use ; Guidelines as Topic ; Hepatitis B, Chronic ; drug therapy ; Humans

OBJECTIVETo investigate the optimum phase and dose of pharmaco-serum of diabetic rats fed with Qianggubao decoction ([Chinese characters: see text]) on the differentiation and mineralization of osteoblast (OB). METHODS (OB) was isolated from the skull of 10 newly born SD rats aged 1 to 2 days by means of Trypsin-collagenase digestion. After the OB was identified, different kinds of pharmaco-serum of diabetic rats fed with inactive Qianggubao decoction ([Chinese characters: see text]) of different phase (rats were fed with medicine three days or five days after last fed with medicine one hour or three hours) and concentration (5%, 10%, 20%) were added to the OB and incubated. After 7 days and 18 days of culture,the effects of the differentiation and mineralization of osteoblast were detected.

RESULTSThe secretion of ALP and formation of mineralized nodules of osteoblast in the different doses of pharmaco-serum groups were almost the same as that of normal control group, but were superior to that in the model control group. And the group with concentration of 20% pharmaco-serum was the best in the secretion of ALP and formation of mineralized nodules of osteoblast. As to the phases of pharmaco-serum, the best one on the differentiation and mineralization of osteoblast was the serums from diabetic rat-model fed with Qianggubao decoction ([Chinese characters: see text]) three days or five days, after one hour of last fed with medicine.

CONCLUSIONThe pharmaco-serum of diabetic rats fed with Qianggubao decoction ([Chinese characters: see text]) can promote the differentiation and mineralization of osteoblast. Allow for time and the cost of experiment,we presume that pharmaco-serum of diabetic rats fed with Qianggubao decoction ([Chinese characters: see text]) three days, after one hour of last fed, with concentration of 20% and not-inactivation is the optimum on the differentiation and mineralization of osteoblast.

Alkaline Phosphatase ; metabolism ; Animals ; Cell Differentiation ; drug effects ; Cells, Cultured ; Diabetes Complications ; drug therapy ; Diabetes Mellitus ; drug therapy ; metabolism ; Disease Models, Animal ; Drugs, Chinese Herbal ; metabolism ; pharmacology ; Female ; Humans ; Male ; Osteoblasts ; drug effects ; enzymology ; physiology ; Osteoporosis ; drug therapy ; Random Allocation ; Rats ; Rats, Sprague-Dawley ; Serum ; drug effects ; metabolism

Objective To evaluate contrast-enhanced fluid-attenuated inversion recovery (FLAIR) imaging in the detection of leptomeningeal lesions.Methods Seventeen patients with a variety of leptomeningeal lesions were analyzed.The MRI protocol included un-enhanced and contrast-enhanced FLAIR images and contrast-enhanced T_1WI,Comparisons between contrast-enhanced FLAIR images and T_1WI and between un-enhanced and contrast-enhanced FLAIR images were made to determine which sequence better depicted the lesions.Results Leptomeningeal lesions showed as either diffusely or locally abnormal hyper-intensity along sulci or cistern on three sequences.Comparison between contrast-enhanced FLAIR and T_1WI showed that only contrast-enhanced FLAIR revealed the abnormalities in 7,both revealed the abnormalities but the former was superior in 2 ,and both were conspicuous in 7. In 1 patient of tuberculous meningitis,diffuse abnormalities of sulci were shown only on contrast-enhanced FLAIR, abnormalities of cisterns were shown on both sequences but the former was superior.Comparison between un- enhanced and contrast-enhanced FLAIR showed that only contrast-enhanced FLAIR revealed the abnormalities in 9,both revealed the abnormalities but the former was superior in 3,and both were conspicuous in 4. In 1 patient of tuberculous meningitis,abnormalities of cisterns were shown only on contrast-enhanced FLAIR,diffuseabnormalities of sulci were shown on both sequences but the former was superior.Conclusions Contrast-enhanced FLAIR images were superior to un-enhanced FLAIR images and contrast-enhanced T_1WI in the detection of leptomeningeal lesions. Contrast-enhanced FLAIR images are helpful and should be considered when findings on un-enhanced FLAIR images and/or contrast-enhanced T,WI are inconclusive.

Objective To investigate the effect of cyclooxygenase (COX)-2 inhibitor celecoxib on learning and memory capabilities of transgenic mice with five familial Alzheimer's disease (5×FAD) and its potential mechanism.Methods Totally 32 6-month male 5 ×FAD transgenic positive mice were selected and randomly divided into two equal groups (n=16):a model group (group AD) and a celecoxib treatment group (group S).The mice in group AD were fed with normal diet while those in group S took celecoxib in their diet.Another 16 wide-type (WT) gene mice,served as a normal control group (group WT),received normal diet.After treatment for 14 d,water maze test was arranged for the 3 groups to detect their learning capability.Thioflavin-S staining was conducted to detect the number and area of plaques in the cerebral cortex,hippocampus and thalamus of the mice,immunofluorescence staining was used to detect expressions of 4G8 and ion calcium junction protein molecule 1 (Iba-1) in the brain tissues,and quantitative real time-PCR (q-PCR) was used to detect expressions of markers of M1 and M2 microglia cells in the brain tissues.Results The latency periods in finding the platform in mice of group WT,group S and group AD successively increased on 24nd 3rd and 4th d of treatment,with significant differences among the 3 groups (P＜0.05).The ratio of time of staying in target quadrant to total time in mice from group AD was significantly lower than that in group WT and group S (P＜0.05).The average plaque number and volume per slice in group S were significantly reduced than those in group AD (P＜0.05).Immunofluorescence staining showed no plaque formation and a small number of activated microglia cells in group WT,but plaque formation and a large number of activated microglia cells in group AD and group S.The expression of M1 marker in brain tissues was significantly decreased and the expression of M2 marker was significantly increased in group S than those in group AD (P＜0.05).Conclusion COX-2 inhibitor celecoxib improves the learning and memory capabilities of 5×FAD mice,which is closely related to polarization of microglia cells.