Objective To explore the effects of bioactive parts of Xiongma Decoction (parts of ethyl acetate and n-butanol extract) on the CGRP-CRLR/RAMP1 signal pathway so as to clarify its therapeutic mechanism on migraine.Methods We randomly divided 36 male SD rats into 6 groups with 6 in each:blank group,model group,groups of low-,medium-and high-dose Xiongma Decoction bioactive parts,and Sumatriptan group.By giving hypodermic injection of 10 mg/kg nitroglycerin,the migraine rat model was copied;Only 18 rats were found to have positive expressions of CGRP,CRLR,and RAMP1 in TCC with immunohistochemistry staining after heart perfusion.For the remaining 18 rats,TCC was stripped directly from the whole brain and divided into two parts,one part used to detect CGRP,CRLR,RAMP1 mRNA expressions by qPCR,and the other part to detect CGRP,CRLR,RAMP1 protein expressions by Western blot.Results The number of CGRP,CRLR and RAMP1 immunoreactive cells,the mRNA and protein expressions on TCC in model group were effectively increased,compared with those in the blank group (P＜0.05),indicating that the model copying was successful.Compared with those in the model group,the number of CGRP,CRLR and RAMP1 immunoreactive cells in Xiongma Decoction bioactive parts was significantlv decreased,and the expressions of CGRP,CRLR and RAMP1 mRNA and protein were reduced (P＜0.05).Conclusion The bioactive parts of Xiongma Decoction can reduce the activity of CGRP-CRLR/RAMP1 signal pathway in TCC of migraine rats.

Objective: To investigate the relationship between blood pressure variability and ambulatory arterial stiffness index (AASI) in both normal subjects and hypertensive patients.
Methods: A total of 280 consecutive subjects without antihypertensive medication were studied. All subjects received ambulatory blood pressure monitoring (ABPM) and AASI was calculated as 1 minus the regression slope of diastolic blood pressure value vs systolic blood pressure value according to ABPM recording.
Results: ① There were 161 subjects with male gender, 138 patients with hypertension, and the average age was (50.4 ± 13.3) years.②Pearson analysis indicated that AASI was related to age (r=0.272, P<0.001), 24-hour mean pulse pressure (r=0.504, P<0.001) , nocturnal diastolic blood pressure dipping (r=-0.334, P<0.001) and standard deviation of 24-hour diastolic blood pressure (r=-0.520, P<0.001).③AASI in anti-dipper hypertensive patients was higher than that in dipper patients, P<0.05;while AASI between dipper and non-dipper patients, dipper and extreme-dipper patients were similar, P>0.05 respectively.④Multiple linear regression analysis demonstrated that with adjusted age, gender, BMI and blood pressure, AASI was independently related to 24-hour mean pulse pressure (β=0.003, P<0.001), nocturnal diastolic blood pressure dipping (β=-0.001, P<0.05), standard deviations of 24-hour systolic blood pressure (β=0.032, P<0.001) and 24-hour diastolic blood pressure (β=-0.064, P<0.001), standard deviation of 24-hour heart rate (β=0.006, P<0.001).
Conclusion:AASI is closely related to blood pressure variability, it’s a comprehensive index for arterial stiffness and blood pressure variability.

[Objective] To observe NGF on cultured human retinal vascular endothelial cells (HRCEC) proliferation. [Methods] The MTT assay was used to analyze the impact of culture HRCEC on different factors (NGF concentration groups, NGF + K252a concentration groups, bFGF group, bFGF + K252a groups, the normal culture medium groups) in normal and hypoxic condition. [Results] With the increase of NGF concentration (20,50,100 ng/mL), HRCEC significantly increased (normal condition: 0.254±0.033,0.696±0.029, 1.136±0.051; hypoxic condition: 0.422±0.036, 0.798±0.044, 1.376±0.052, P< 0.05). Compared NGF + K252a group with the same concentration of NGF (100 ng/ml) group, HRCEC reduced (P<0.05), with increasing the concentration of K252a (50,100,200 nmol/L), the trend of HRCEC decreasing is become more significant (normal condition:0.864±0.067, 0.496±0.025, 0.202±0.078; hypoxic condition:K252a 1.042±0.047,0.700±0.065, 0.401±0.078, P<0.05). [Conclusion] NGF can promote the proliferation of HRCEC, the effect could be specifically blocked by TrkA inhibitor K252a.

OBJECTIVE:To establish drug safety performance indicator system in Beijing,and to provide reference for evaluat-ing work quality of administration department and drug market safety reasonably. METHODS:Through literature survey,expert brainstorming and maximum difference scaling,the indicators of drug safety performance evaluation system in Beijing were select-ed,and internet questionnaire survey was conducted among 20 regulators by using SSI Web software. The weight of each indicator was analyzed. RESULTS & CONCLUSIONS:4 factors of drug safety performance have been selected involving 27 indicators,ig. Results of drug sampling test(Oc)which reflect drug market safety directly;results of special drug sampling test(So)which mea-sure the quality of essential medicine;drug sampling operation standard (Na) which measure the completion of drug sampling by procedure or plan;rationality of drug sampling (Ra) which guarantee the rationality of sampling procedure and representativeness of sampled drugs. Finally,20 indicators are identified by experts. The weight of 4 factors are 21%,14%,40% and 25%,respec-tively. Established drug safety performance evaluation system can achieve quantitative check of drug supervision departments,and dispose several problems as rely on subjective factor greatly,lack of objective and uniform standard,only check the results. It pro-vides reference for the formulation of drug safety performance evaluation indicators in other provinces,cities and municipalities.

DNA hydroxymethylation modification is an important part of genome epigenetic regulation.The demethylation process from 5-methylcytosine (5-mC) to 5-hydroxymethylcytosine (5-hmC) is catalyzed by Tet protein.Abnormal genomic methylation leads to the occurrence of a variety of tumors.Hydroxymethylation is modified as a kind of demethylation and is inseparable from tumorigenesis.The expression of 5-hmC changes accompanied with the development and progression of digestive system tumors,which may be associated with the TET protein family and IDH mutation.It suggested that DNA hydroxymethylation is involved in the development and progression of digestive system tumors.This paper reviews the relationship between DNA hydroxymethylation and digestive system tumors,and aims to provide a new direction for the study of Hydroxymethylation modification in digestive system tumors.

Primary congenital glaucoma (PCG) is one of the major diseases causing blindness in children, but its pathogenesis has remained unclear. Genetic factors play an important role in the pathogenesis of PCG. Molecular genetics of candidate genes such as CYP1B1, MYOC, LTBP2 and FOXC1 has so far been explored, but no disease-causing gene has been identified. Molecular genetic research on PCG including candidate gene screening and research strategies are reviewed here.
Animals ; DNA Mutational Analysis ; Genetic Testing ; Glaucoma ; genetics ; Humans

AIM: To observe the therapeutic action of Guizhifuling Capsule (Ramuluo Cinnamomi, Poria, Cortex moutan, Semen Persicae, etc.)on hyperplasia of mammary glands in rast, and to explore the new therapeutic effectiveness and its mechanism. METHODS: To inject extrinsic E2 and Pt into muscle to reproduce rats model of hyperplasia of mammary glands, to observe the morphologic changes of nipple in every group, determine extradiol and progesterone content on plasma in experimental rats by radio immunoassay, and study the changes of ER and PR by immunohistochemical method. RESULTS: Compared with the model group, Guizhi Fuling Capsule can markedly abate papilledema, proliferation of lobule, acinus and duct in mammary glands, reduce obviously changes of blood, estradiol on plasma, the ER and PR content of mammary glands and increase progesterone. CONCLUSION:Cuizhi Fuling Capsules have the good therapeutic action on hyperplasia of mammary glands in rats, its mechanism is related to correcting changes of blood, adjusting the blood concentration of sexual hormone in experimental rats and its expression of receptor.

Objective To investigate and analyze the influence of whole blood specimens storage time in blood routine examination parameters. Methods All 40 healthy cases were randomly selected, and all the whole blood specimens were stored at 4℃. 1,2,3,5 and 7 days after the blood sampling,the specimens were tested by Sysmex-XS1000 au-tomated hematology analyzer, and statistical analysis was conducted. Results The specimens were kept in refrigerator at 4℃,for 7 days, WBC, RBC, Hb, MCH, PLT, RDW-CV, N, L, M and E could still maintain stable. There was no significant difference(P>0.05)in comparing all the measurement data and the fresh sample measurement data. HCT,MCV,RDW-SD and B% gradually increased after 3 days, and MCHC gradually decreased. The difference was statis-tically significant (P<0.05). Conclusion Complete blood count specimens can store at 4℃ for 3 days. The results are relatively stable,and parts of main analysis indicators results can still remain stable for a week.

Objective To explore the role of transvertebral transposition of the spinal cord in the treatment of the pa?tients suffering from angular kyphoscoliosis with neurologic deficit. Methods Twelve patients with at least 1 year follow?up, in?cluding 5 females and 7 males, suffering from neurologic deficit secondary to angular kyphoscoliosis underwent transvertebral transposition of the spinal cord and posterior correction from January 2005 to June 2013 were retrospectively analyzed. The initial age averaged 21±14 years. The etiologies of deformity were congenital kyphoscoliosis in 9 patients, idiopathic kyphoscoliosis in 3 patients. Preoperative spinal cord function graded by Frankel criteria was 3 cases of grade C and 9 of grade D. The initial major curve was 79.4°±16.2° with a global kyphosis of 68.3°±25.0°. The change of distance between spinal cord and canal on the convex side at the apex was measured on MR images to evaluate the efficacy of transposition;in addition, Cobb angle on coronal and sagit?tal plane was evaluated before surgery, on discharge and at the last follow?up. Results All patients were followed up for 2 years on average (1-5 years). The post operation spinal function evaluated by Frankel criteria were as follow:with grade C of 1 case, grade D of 4 cases and grade E of 7 (7 cases changed one grade, 1 case changed two grades, 4 cases did not change obvious). At the last follow?up, all the cases got obvious recovery of spinal function, with 1 case of grade C and 11 of grade D (10 cases changed one grade, 2 cases changed two grades). The distance between spinal cord and canal on the convex side at the apex changed from 11.9±6.4 mm to 9.8±6.9 mm. After surgery, the major curve improved to 39.3°±15.1° with 50.3%±20.5%correction rate, and the mean loss of correction was 6.1%±7.5%. The mean kyphosis was 41.3°±16.6°, demonstrating a 39.0%±13.0%correction rate im?mediately after operation, and showing 3.1%±4.2%correction loss at the final follow?up. No neurologic complications or no death occurred intra?and post?operatively. No screw or rod fracture, instrumentation loosening and pseudarthrosis were found during fol?low?up. Conclusion Transvertebral transposition of the spinal cord and posterior correction is a useful procedure for the recovery of neurologic deficit secondary to angular kyphoscoliosis, with good results of deformity correction.

OBJECTIVE To investigate the effect of injection of β2-adrenergic receptor agonist clenbuterol into the infralimbic cortex(IL) on drug-seeking behavior triggered by conditioned cues. METHODS Adult male SD rats were trained to self-administer heroin under a FR1 schedule for consecutive 14 d,followed by 2-h extinction training. Cue-induced heroin seeking was measured for 2 h. Clenbuterol was microinjected bilaterally into the IL(8 ng/side)of rats 15 min prior to reinstatement test. Meanwhile,locomotor activity was detected 15 min after clenbuterol or artifial cerebrospinal fluid(mod?el group) was microinjected bilaterally into IL. Western blotting was used to detect the expression of phosphorylated cyclic AMP response element-binding protein(p-CREB)in the prelimbic cortex(PL), IL,nucleus accumbens core (NACc) and shell (NACsh) of rats immediately after reinstatement test. RESULTS After heroin administration training for 14 consecutive days,these animals exhibited reliable heroin self-administration,indicated by the increase in active nose poke responses and infusions. The rats that had received infusion of clenbuterol into the IL had significantly lower active pokes (8 ± 3)than those in model group(45±10)in cue-induced reinstatement(P<0.01),but there was no significant differ?ence between clenbuterol group and vehicle group in the locomotor activity. The expression of p-CREB in either IL or NACsh was significantly decreased in clenbuterol group compared with model group(P<0.01,P<0.05),but significantly increased in NACc(P<0.01). CONCLUSION Microinjection of clenb?uterol into the IL can attenuate the cue-induced reinstatement of heroin-seeking behavior in rats. The underlying mechanism might be related to the regulation of p-CREB expression in the NACc and NACsh.