98 %).Conclusions Saponins are the major active ingredients in Radix Polygalae.Tenuifolin as an alkaline hydrolysis product of total saponins can be used as a chemical reference substance for the quality control of Radix Polygalae.

Adult ; Arsenic Poisoning ; pathology ; Chronic Disease ; Hemosiderin ; metabolism ; Hemosiderosis ; metabolism ; pathology ; Humans ; Hypertension, Portal ; chemically induced ; metabolism ; pathology ; Liver Cirrhosis ; chemically induced ; metabolism ; pathology ; Male ; Pancytopenia ; chemically induced ; metabolism ; pathology ; Splenomegaly ; chemically induced ; metabolism ; pathology

Objective Radiological grade of splenic injury was seldomly used in China trauma center now,though it had been established in 1994 by American Association for Surgery of Trauma (AAST) and widely used.The present study is aimed to analyze the imaging grade and clinical characteristics of traumatic splenic rupture in children,discuss the feasibility of conservative treatment,and the role of radiographic grading during clinical treatment.Methods Information (including age,gender,severity based on radiological findings,treatment strategies,and clinical outcome) regarding 59 hospitalized splenic injury patients whose injuries occurred between 2008 and 2014 was retrospectively analyzed.Results Between 2008 and 2014,59 pediatric patients with splenic injury were treated in our institution.Median age was 9.5 years (range,3 months to 16 years).Of all patients,41 (69.5%) were male.The injuries were primarily caused by traffic crash (45.7%),stumbling/falling from a height (38.9%).According to AAST,5 cases were grade Ⅰ,26 patients grade Ⅱ (44.1%),and 21 cases grade Ⅲ (35.6%),6 over grade Ⅳ,and only one was unclear.Of all patients,25 cases were with the other organs complications.All patients underwent fasting,bed rest,and antibiotics.Only 1 case was transferred to operation during the conservative treatment.Forty-nine patients underwent with CT scan over 2 times.Conclusion Imaging classification helps guide clinical treatment.Conservative treatment is feasible for traumatic splenic injury in children.Early imaging classification of splenic injury may be helpful in clinical judgment,and reduce children radiation exposure.

OBJECTIVE: To observe the time-course expression of zonula occludens-1 (ZO-1) in cerebral cortex after traumatic brain injury (TBI). METHODS: The TBI model of mouse was established. The mice were divided in 1 h, 3 h, 6 h, 12 h, 24 h, 3 d, 7 d after TBI, sham and control groups. The permeability of the blood brain barrier was evaluated by measuring the extravasation of Evans blue (EB) dye. The expression of ZO-1 in cerebral cortex in the injured area was detected by Western blotting and immunohistochemistry. RESULTS: The extravasation of EB dye of injured cortex gradually increased from 1 h, peaked at 1-3 d and approximately decreased to normal at 7 d after TBI. Western blotting revealed that the expression of ZO-1 gradually decreased after 1 h, was at the lowest at 1-3 d, and then significantly increased after 7 d but was still lower than that of normal and sham groups. The result of immunohistochemistry showed that ZO-1 had strong expression in vessel of normal cortex, gradually decreased after TBI, and almost disappeared at 3 d after TBI and gradually recovered to normal level later. CONCLUSION The expression of ZO-1 in the injured cortex after TBI initially decreases and then increases. The negative correlation between ZO-1 expression and EB extravasation after TBI could be used as a new indicator for wound age estimation.
Animals ; Blood-Brain Barrier ; Blotting, Western ; Brain Injuries/physiopathology* ; Cerebral Cortex/metabolism* ; Immunohistochemistry ; Mice ; Permeability ; Tight Junctions/metabolism* ; Zonula Occludens-1 Protein/metabolism*

In order to study the analgesic effect of Shaoyao Gancao Decoction, this paper discussed material basis and mechanism from the perspective of macromolecules in traditional Chinese medicine. Inspired by the phenomenon of turbidity after boiling Chinese medicine, this experiment took Shaoyao Gancao Decoction as the research object to study the formation process of precipitation during boiling. The results showed that aggregates with a certain shape were formed in the solvent during the boiling process, and the precipitate was obtained by standing and centrifuging. Analysis found that the precipitation was mainly composed of small molecules such as paeoniflorin, albiflorin, liquiritin, glycyrrhizic acid, isoliquiritin and gallic acid, and macromolecules such as protein and polysaccharide. The composition of precipitate was consistent with that of Shaoyao Gancao Decoction, but the analgesic effect of Shaoyao Gancao Decoction after removing the precipitate was significantly reduced. Based on these results, we isolated small molecular compounds, polysaccharides and protein from Shaoyao Gancao Decoction and their contents are 60.4, 700.7 and 207.2 mg·g^-1 respectively. We get the ratio, polysaccharide: small molecule = 11.6∶1, protein: small molecule = 3.4∶1, the precipitate is prepared in the state of boiling. The characterization results showed that the particle size of the precipitate will change significantly after co-heating, and the content determination results showed that the content of the six small molecular compounds which was free in solvent was significantly reduced after the formation of the precipitate. The acetic acid writhing experiment proved that the precipitate has a good analgesic effect, and effectively reduced the levels of inflammatory factors prostaglandin E2 and nitric oxide, and increased the level of anti-inflammatory factor interleukin-10. These results proved that the precipitate in Shaoyao Gancao Decoction is an important material basis for analgesic effect, and macromolecules such as protein and polysaccharide are the main components of the precipitate. The study of macromolecules in the precipitate of Shaoyao Gancao Decoction not only provides new ideas and methods for elucidating the pharmacodynamic material basis of Shaoyao Gancao Decoction, but also provides a reference for analyzing the scientificity of traditional decoction.

OBJECTIVETo study changes of left ventricular remodeling (LVR) in hypertension patients with carotid atherosclerosis (CAS) of phlegm-dampness syndrome (PDS).

METHODSDoppler ultrasonography data of CAS were observed in 223 hypertension patients with CAS (as the hypertension group, including 119 patients of the PDS group and 104 of the non-PDS group), 81 CAS patients with non-hypertension, and 19 non-hypertension non-CAS patients (as the control group). The difference in the degree of LVR was compared among the above groups.

RESULTSThe left ventricular posterior wall thickness (LVPWT), inter ventricular septum thickness (IVS), E/A were higher in the hypertension group than in the non-hypertension group (P < 0.05). The left ventricular end-diastolic dimension (LVEDD), left ventricular end-systolic diameter (LVESD), stroke volume (SV) were higher in the soft plaque hypertension group and the soft plaque non-hypertension group than in the hard plaque group, the thickening intimal group, and the normal intimal group (P < 0.01 , P < 0.05). The LVEDD, LVESD, and SV were higher, and the ejection fraction (EF) was lower in the PDS hypertension group than in the non-PDS hypertension group (all P < 0.05). Of them, LVEDD, LVESD, and SV were higher in the soft plaque group than in the hard plaque group (P < 0.01), the thickening intimal group (P < 0.01) and the normal intimal group (P < 0.05). There was no statistical difference in PDS hypertension between the soft plaque group and the hard plaque group (P > 0.05).

CONCLUSIONThe hypertension patients with CAS of PDS might be correlated to LVR, and LVR was more obviously in the soft plaque patients.

Aged ; Aged, 80 and over ; Carotid Artery Diseases ; diagnosis ; diagnostic imaging ; physiopathology ; Case-Control Studies ; Female ; Humans ; Hypertension ; diagnosis ; diagnostic imaging ; physiopathology ; Male ; Medicine, Chinese Traditional ; Middle Aged ; Ultrasonography ; Ventricular Remodeling

Objective To explore the relationship between wild rodent plague and human in wild rodent plague foci of the northwestern area in Yunnan to probe the possible transmission mechanism of wild rodent plague to human. Methods Data of component ratio of rodents and fleas was collected in different areas from 1985 - 1995. Activities and habits of residents regarding the way they keep cats and dogs and parasitic fleas and free fleas indoor were investigated, the dog serum was collected for detecting F1 antibody. Results Eothenomys miletus were main rodents in farmland and shrub, accounting for 48.00% (4753/9902) and 54.50% (4282/7857), Apodemus chevrieri were main rodents in garden, being 50.47% (1332/2639). The component ratio of Neopsylla specialis specialis was 13.31%(229/1720), 12.31%(1678/13 739) and 10.87%(957/8802) respectively in garden, farmland and shrub, higher than in indoor. The component ratio of Frantcpsylla spodix was 39.88% (686/1720), the highest in garden. Thirty-two per cent (32/100) of residents kept cats,in which 63% (20/32) with cat fleas, 68% (68/100) of villages kept dogs, in which 76%(52/68) with fleas. Eighteen parasitic fleas were caught from 43 dogs with a flea index of 0.119 and a rate for fleas of 11.63%, 7 pulex were collected from 17 indoor. Forty-three blood serum samples were obtained from dogs, among which 3 were positive blood serum. Conclusions Residents touch affected animals or media in different situations. The possibility of transmission for wild rodent plague to human exists in loci in a chain of wild rodent plague → fleas or predation → homebred animal plague (cats or dogs) →touching or respiratory → human.

Objective To compare the results of the anterior approach (AA) with the conventional approach in the treatment of large hepatocellular carcinoma (HCC).Methods We searched the Medline,PubMed,Cochrane Library,Wanfang database on randomized clinical controlled trials and non-randomized clinical controlled trials comparing AA with the CA in right hepatic resection for large hepatocellular carcinoma.The data were analyzed with the RevMan5 software.Results Five non-randomized clinical controlled trials (NRCTs) and three randomized clinical controlled trials involving 615 patients (304 in the AA group,311 in the CA group) were enrolled into the analysis.There was no significant difference in the operation time between the two groups.Compared with the CA,the AA had lower intraoperative blood loss (WMD=-680.2 ml; 95％CI,-1023.97～-336.43;P=0.0001),blood transfusion rate (OR=0.38;95％ CI,0.25～0.59;P＜0.0001),intraoperative tumor rupture (OR=0.33;95％CI,0.11～0.97;P=0.04),surgical complication (OR=0.59;95％CI,0.38 ～ 0.93 ; P =0.02),hospital mortality (OR =0.37 ; 95 ％ CI,0.21 ～ 0.67 ; P =0.0009),and hospital stay (WMD=-4.75 d;95％CI,-7.82～-1.67;P=0.002).Conclusion AA is superior to CA in the treatment of larger.The operation time is the same for the 2 approaches.

Objective To study the changes of antigen-specific T helper type 1 (Th1) cells and Th2 cells in patients with pemphigus vulgaris (PV) at different stages,so as to better understand the roles of autoreactive T cells in PV.Methods The DG3 (96-112) peptide was synthesized.Twenty-four patients with PV and 10 health checkup examinees were included in this study.Peripheral blood mononuclear cells (PBMCs) were obtained from the health checkup examinees and all the patients before treatment and seven patients about one month after treatment,and stimulated with the DG3 peptide of 10 mg/L for different durations.Then,enzyme-linked immunospot (ELISPOT) assay was performed to count the number of DG3-specific IFN-γ+ Th1 cells,IL-4+ Th2 cells and memory B cells.One-way analysis of variance (ANOVA) and t test were done to compare the number of cells between different groups,and Pearson correlation coefficient was used to evaluate the correlation among Th cells,memory B cells and anti-desmoglein 3 (Dsg3) antibody titers.Results In these patients,the male to female ratio was 1.67 ∶ 1,and the average age was (56.59 ± 14.66) years.Compared with the health check-up examinees,the patients with PV showed a higher absolute number of DG3-specific IFN-γ+ Th1 cells (420.18 ± 350.29 vs.145.12 ± 86.56,t =3.25,P ＜ 0.05),but a similar absolute number of specific IL-4+ Th2 cells (366.76 ± 192.44 vs.335.88 ± 164.96,P＞ 0.05) per 5 × 105 PBMCs.The percentage of DG3-specific IL-4+ Th2 cells in Th2 cells was 37.03％ ± 23.44％,and the percentage of IFN-γ+ Th1 cells was 23.62％ ± 16.77％ in peripheral blood of patients with PV.The number of DG3-specific IL-4+ Th2 cells per 5 × 105 PBMCs significantly decreased from 452.82 ± 199.29 before treatment to 241.68 ± 160.60 after treatment in seven patients (t =2.48,P ＜ 0.05).There was no significant correlation between specific Th cells,memory B cells and anti-Dsg3 antibody titers (all P ＞ 0.05).Conclusions The peptide DG3 (96-112) has pathogenic epitopes which could be recognized by specific Th cells of patients with PV.Both antigen-specific IFN-γ+ Th1 cells and IL-4+ Th2 cells play certain roles in the pathogenesis of pemphigns vulgaris,and IL-4+ Th2 cells appear to be more important.

OBJECTIVETo estimate the coverage level of case reporting for coal workers' pneumoconiosis (CWP) and the incidence of CWP in China according to the data from CWP reporting database in China as well as the data on annual raw coal output, coal workers, etc. from relevant year books, and to provide scientific data for CWP control measures.

METHODSThe data on the numbers of coal workers and annual raw coal outputs of national top 100 enterprises in coal sector (Top 100 in coal sector) were acquired from China Coal Industry Yearbook; the annual per capita output of raw coal in each enterprise was calculated. The numbers of coal workers in the enterprises other than the Top 100 were estimated based on the annual per capita output of raw coal in the Top 100 and the annual raw coal outputs of the enterprises other than the Top 100. The numbers of coal workers in the enterprises that reported CWP cases were estimated based on the distribution of these enterprises in China, and the coverage rates of case reporting in the Top 100 and other enterprises were calculated accordingly. The total number of CWP cases and the number of CWP cases due to per million tons of raw coal output were estimated according to the coverage rates of case reporting and the total numbers of reported CWP cases in China.

RESULTSThe mean coverage rates of case reporting in the Top 100 and other enterprises were 55.34% and 5.18%, respectively. The estimated mean numbers of new CWP cases in the Top 100 and other enterprises were 3088 and 98205, respectively; the estimated total number of new CWP cases nationwide was 101293. The estimated mean numbers of new CWP cases due to per million tons of raw coal output were 2.05 in the Top 100 and 7341 in other enterprises. The number of reported CWP cases accounted for 6.7% of the estimated number of CWP cases (6796/101293).

CONCLUSIONIt is urgent to enhance occupational disease control in coal sector, and the estimation results for CWP should be spread and applied. The system of occupational disease control should be further improved.

Anthracosis ; epidemiology ; China ; epidemiology ; Coal Mining ; Data Interpretation, Statistical ; Humans ; Incidence ; Male ; Occupational Exposure