OBJECTIVE:To study the improving effects of argatroban on the brain damage of model rats with cerebral hemor-rhage. METHODS:50 SD rats were randomly divided into normal control group(equivalent normal saline),model group(equiva-lent normal saline),argatroban high,medium and low dose groups (0.75,1.5,3 mg/kg). All groups,except for normal control group,were reproduced models with cerebral hemorrhage,and the rats in each group were treated by corresponding drugs after 30 min,ip,once a day. The rats were executed after continuous administration for 3 days. The data was detected,including the con-tents of tumor necrosis factor-α(TNF-α),interleukin-1β(IL-1β),activity of cysteine-containing aspartic protease 3(Caspase-3), expressions of Bcl-2,Bax,matrix metalloproteinase-2(MMP-2)and MMP-9,and the phosphorylations of nuclear factor κB(NF-κB) p65 and IκBα. RESULTS:Compared with the normal control group,the contents of TNF-α and IL-1β,the activity of Cas-pase-3,the expressions of MMP-2,MMP-9 and Bax proteins were increased;the expression of Bcl-2 was decreased;and phos-phorylations of NF- κB p65 and IκBα in model group were increased,with significant differences(P<0.01). Compared with the model group,the contents of TNF-α and IL-1β,the activity of Caspase-3,the expressions of MMP-2,MMP-9 and Bax were de-creased;the expression of Bcl-2 was increased;and phosphorylations of NF-κB p65 and IκBα in argatroban low,medium and high dose groups were decreased,with significant differences (P<0.01 or P<0.05). And it was positively correlated with the dose. CONCLUSIONS:Argatroban has dose-dependent inhibition effects on the inflammatory cytokine secretion and apoptosis of brain tissue of model rats with brain hemorrhage,and the mechanism may be related to NF-κB signaling pathway.

Objective:To investigate the influence of type A behavior in the occurrence and development of chromic periodontitis and compare the differences among people with different behavior types in the occurrence and development of chronic periodontitis, and to explore the influence of psychological factors in the process of periodontitis.Methods:According the same standard,132 patients with periodontitis were selected as periodontitis group,and 126 patients without periodontitis were used as control group.OralSurveys Basic Methods proposed by WHO in 1987 and ReferenceStandard of Diagnosis and Treatment of Periodontitis made by AAP in 2000 were used to dignose the periodontitis.All subjects finished type A behavior and SCL-90 questionnaire (ZHANG Boyuan 1983,revision in 1985 ), their scores were recorded and the results were analyzed by t test. Results:The proportion of type A behavior in periodontits group (68.94%)was higher than that in control group (27.78%) (P<0.05)compared with type M and type B behavior.The scores of hostility (1.54±0.38),anxiety (1.47± 0.39),depression (1.41 ± 0.37),interpersonal sensitivity (1.23 ± 0.39),compulsive (1.72 ± 0.46),and somatizition (1.47 ± 0.38)were significantly higher than those in control group (1.32 ± 0.30, 1.29 ± 0.24, 1.25±0.23,1.04± 0.17,1.41 ± 0.35,1.25 ± 0.24).The calculus index (CI)of the people with type A behavior was higher than those of the people with other types of behavior (P<0.05).Conclusion:The people with tyep A behawior is easier to get periodontitis than other people.

Objective To investigate the organic pollutants in the contaminated water irrigation area soil and to study the lipid peroxidation effect of the pollutants on mouse. Methods The organic pollutants of the polluted irrigation soil and control soil were extracted using the supersonic oscillator. The ingredients of the organic pollutants were measured by the GC-MS spectrum. The 40 sanitary Kunming mice were randomly divided into five groups: the dimethylsulfoxide control group,low dose group of control soil,high dose group of control soil,low dose group of polluted soil,high dose group of polluted soil. The administered doses of the low and high dose groups were 25.5 g dry soil/kg body weight per day by oral for two weeks. The activities of T-SOD,GSH-Px and the content of MDA in serum of mice were determined. Results Phenanthrene,yrene,diphenyl,fluorene,naphthalene,dimethyl-naphthalene,2,3,6-trimethyl-naphthalene,anthracene,dimethyl-anthracene,1,4-dimethyl-anthracene,fluoranthene,4-methyl-pyrene,dibenzothiophen,4-methyl-dibenzofuran,dibenzofuran,butylated-hydroxytoluene,dodecane,neopentyl-cyclohexane,trimethyl-heptane,1,2-dimethyl-cyclohexanimine,butethal were detected in the polluted irrigation soil and their levels were 14.3,2.1,1.3,1.1,0.8,1.3,0.4,2.9,7.2,2.3,9.1,0.2,0.4,1.4,1.7,0.37,0.9,0.11,0.02,0.02 and 0.13 mg/kg respectively in the polluted irrigation soil. Trimethyl-heptane,dimethyl-heptane and 1,2-dimethyl-cyclohexanimine were detected,and their levels were all 0.01 mg/kg in control soil. Compared with the solvent of dimethylsulfoxide group,the activities of T-SOD and GSH-Px of the high dose group of control soil and two dose groups of polluted soil all decreased,the differences were all significant(P0.05). Conclusion The soil has been contaminated with organic pollutants in the investigated area and the soil extract may produce a certain effect on lipid peroxidation in mice.

Objective:To investigate the changes in plasma ET-1 and ANF in IDDM and its microvascular complication.Methods:The plasma levels of ET-1 and ANF were measured by radioimmunoassy in 31 patients with IDDM and 25 normal controls.Results:The plasma levels of ET-1 and ANF significantly increased in IDDM compared with the normal controls (P<0.01);and the levels were also markedly higher in diabetics with microangiopathy complications than in those withou the complications (P<0.01).The more kinds of microangiopathey complications,the higher level of the plasma ET-1 and ANF,which suggests that the elevation of plasma ET-1 and ANF may be concerned with the microangiopathy and ET-1 may reflect the degree of vascular endothelial cell damage.There were no significant correlation between plasma ET-1 or ANF and blood glucose,fructosamine and C-peptide,but the plasma levels of ET-1 and ANF both correlated with the duration of diabetes mellitus.And the plasma level of ET-1 positively correlated with ANF1 (P<0.01).Conclusion:The results of study suggest that ET-1 and ANF are both associated with the development,progress and severity of microvascular complications.

Objecive To observe the characteristic appearance of veins spatial distribution of lump's tissue by using Photoshop so as to improve the ability of ultrasonic diagnosis.Methods The images of lump's tissue gotten from ultrasonic were converted by using Photoshop.Then the corresponding relations between small wave coefficient and local characteristics were analyzed.Result Image determination and wavelet analysis for lump tissue not only provided frequency spectrum and veins analysis for images,but also acquired quantitative data received from focus and normal tissue.Conclusion Wavelet analysis provides reliable basis for distinguishing and analyzing characteristics of focus in clinical lump diagnosis.

Anaplastic lymphoma kinase (ALK) rearrangement is one of the most potent carcinogenic genes in non-small cell lung cancer (NSCLC).The first-generation ALK inhibitor such as crizotinib is superior to chemotherapy for NSCLC patients with ALK rearrangement.At the same time,more and more studies have reported ALK inhibitors in brain metastases of NSCLC patients with intracranial efficiency.However,despite the initial clinical data of first-generation ALK inhibitors in the treatment of ALK-positive NSCLC with brain metastases,different degrees of recurrence of tumors after acquired resistance have posed new challenges for follow-up treatment of cancer patients.A new generation of ALK inhibitors,such as alectinib;ceritinib,AP26113 and PF-06463922 have emerged to solve this problem.

Object To establish a method for chemical pattern recognition on the quality assessment of Radix Astragali. Methods The contents of astragaloside in 18 samples of Astragalus Linn. in different species and origins were determinated by dual-wavelength TLCS method. The developing solvent was CHCl 3-MeOH-H 2O (65∶30∶10,), the UV detection was set at ? s=390 nm; ? R=590 nm. Astragaloside was regarded as the quality assurance of medicinal Radix Astragalus. Based on the TLCS method, the chemical data were obtained. Hierarchical clustering analyses were applied to the chemical pattern recognition. Results The content of astragaloside in Astragalus mongholicus (Bge.) Hsiao and A. membranaceus (Fisch.) Bge. was relatively higher than that in the other samples. This is consistent with the Pharmacopoeia of the People's Republic of China in which the two sorts of Astragalus Linn. were regarded as goods. Conclusion This method is a practicable in the quality assessment of Radix Astragali.

Embedding the red doctor’s spirit into the cultivation field of medical students’ humanistic quality is a win-win strategy for creating the excellent doctor 2.0 plan in the new era and inheriting the red genes. Based on the in-depth interpretation of the morphological logic of embedding the red doctor’s spirit into the field of cultivating medical students’ humanistic quality, from the three dimensions of beginning, presence and development, this paper clearly captured many barriers, conflicts and contradictions faced in the process of the red doctor’s spirit embedded in the cultivation field of medical students’ humanistic quality. It is also necessary to break through the practical dilemma by creating the entry card and carrier of the red doctor’s spirit, stabilizing the field of educating people with the red doctor’s spirit, and expanding the development space of educating people with the red doctor’s spirit, so as to win and unite medical students and promote the implementation of the Healthy China strategy.

Objective To explore the change of proportion of peripheral blood dendritic cells (DCs) in patients with stroke. Methods 56 patients (30 cases of cerebral infarction and 26 cases of cerebral hemorrhage) in Beijing Bo'ai hospital from June to September, 2014 and 14 healthy controls were investigated. The severity of stroke was assessed with the National Institutes of Health Stroke Scale (NIHSS). Flow cy-tometry analysis was employed to detect the proportion of DCs subtypes in the peripheral blood. Results No obvious difference was found in DCs between the stroke patients and the controls. Compared to the control group, the percentages of peripheral blood myeloid dendritic cells (mDCs) decreased in the cerebral hemorrhage and the cerebral infarction subgroups (P<0.001). The percentages of plasmacytoid den-dritic cells (pDCs) reduced significantly in the cerebral hemorrhage and the cerebral infarction subgroups (P<0.05). The stroke patients were divided into NIHSS≤7 subgroup and NIHSS>7 subgroup. The percentages of pDCs in the cerebral hemorrhage and the cerebral infarction patients were significantly lower in the NIHSS>7 subgroup than in the NIHSS≤7 subgroup (P<0.05). While there was no statistical differ-ence between NIHSS≤7 subgroups and NIHSS>7 subgroups in the percentages of mDCs in the cerebral hemorrhage and cerebral infarction patients. Conclusion The proportion of DCs subtypes in the peripheral blood in stroke patients changed significantly, indicating inflamma-tion responds play a role in stroke.

Objective To investigate the adrenal steroidogenic function in genotype-proven heterozygotes carrying mutations in CYP17A1 gene in vivo. Methods Eight patients and 14 family members from 5 families with 17-hydroxylase/17,20-lyase deficiency (17OHD) were recruited. The mutations of the CYP17A1 gene in these individuals were screened by direct sequencing of PCR products. The hormonal response to ACTH was evaluated in the 14 genotype-proven carriers and 45 age- and sex-matched normal subjects. Results Three mutations were found in 5 unrelated families. 14 carriers with CYP17A1 mutation were identified, including 7 heterozygotes with D487_F489del, 6 with Y329fs, and 1 for H373L. Compared to the normal subjects, the carriers exhibited lower basal and ACTH-stimulated cortisol levels, but higher ACTH-stimulated corticosterone level. The ratios of corticosterone to cortisol in the genotype-proven heterozygotes were higher than those of normal individuals at baseline and following ACTH-stimulation. Similarly, progesterone level and ratios of progesterone to 17-hydroxyprogesterone in the male heterozygotes were also higher than that of normal individuals before and after stimulation. No significant differences were observed in the hormone levels between two genotypes (D487_F489del vs Y329fs). Conclusions Genotype-proven carriers of 17OHD without apparent clinical symptoms exhibit decreased enzyme activity,analogous to mildly impaired adrenal 21-hydroxylase activity in the carriers of CYP21 A2 gene mutation.