Severe incomplete cerebral ischemia was induced in 70 rabbits using bilateral carotid artery occIusion coupled with hemorragic hypotension. 60 minutes of ischemia was followed by 2 hours of reperfusion. The electroencephalographic activity, cardiac output and mean artery blood pressure were measured at regular intervals. The activities of lactic dehydrogenase(LDH) and creatine phosphokinase(CPK) in cerebral venous blood were measured before and after the insult. The contents of water, sodium, potassium and cyclic uncleotides were determined in cerebral cortex after 60 min of ischemia and 120 min of reperfusion respectively. The histological and ultrastructural alterations were observed. The results indicate that the acute incomplete cerebral ischemie model in the rabbit can be successfully established by hypotension plus hypoperfusion. Its characteristics are severe suppression of electroencephalographic activity, significant eIevation of LDH and CPK, an increase in the contents of water and sodium. Ischemic edema was demonstrated morphologically in cerebral cortex. During the reperfusion peroid, initially some recovery of the electroencephaiographic activity appeared but then severe suppression occurred; the severety of brain edema was exacerbated; the content of cAMP was increased further and the activities of LDH and CPK were still significantly elevated. Severe ischemic tissue damage in cerebral cortex were morphologically demonstrated, of which the ultrastructural alterations were more remarkable. These results suggested that the ischemic tissue damage might be aggravated on reperfusion. The possible mechanisms were discussed. The cerebral circulatory disturbance and parenchymal insult during reperfusion peroid might play an important role in developing the irreversible postischemic brain damage.

Arterial thrombosis was produced in rats by the electric stimulation of the common carotid artery. Tongmai Wan injections were given at a dosage level of 1mi/100g to the experimental group, and the control group was given normal saline. The results showed that the duration from the electric stimulation of the common carotid artery to the occurrence of obstructive thrombosis in the experimental groups (38.00?4.35min, 38.67?3.8min) was much longer than that in the control groups (23.00?3.67min, 23.00?3.00 min),p

Micro positron emission computed tomography (PET) is a sort of tomography technique specifically for small animal stud-ies. It can be used to observe radionuclide labeling molecules in vivo, especially for neuronal activities noninvasively, dynamically and quan-titatively at the molecular level. MicroPET can be used for early detection of atherosclerotic plaques, measurement of cerebral blood flow, judgment of the survival status in cerebral ischemia area in animal model. It is important for the control of risk factors, disease diagnosis, dis-ease staging and evaluation of curative effect.

Objective To examine the clinical characteristics of familial aggregation in migraineurs and to ana-lyze the risk factors. Methods Seventy-two migraineurs were recruited and divided into two subgroups according to family migraine history. The subjects were interviewed in detail with questionnaire including age, disease duration, age at migraine onset,migraine severity, frequency of headache,duration of each attack, aura, unilateral pain, pulsate pain, family history of migraine, family members and other factors. Multi-factors logistic regression analysis was performed to analysis the risk factors after single variable analysis. Results Of 72 migraine patients, 37(51.4%) reported that at least one first-degree relative had a history of migraine. There were no significant differences between migraine sub-groups with and without family migraine history in age (P=0.598), gender(P=0.675), disease duration (P=0.419), aura (P=0.669), headache severity (P=0.837), frequency of attack (P=0.465), concomitant symptoms (P=0.081), headache location (P=0.353), headache property (P=0.963), there were significant differences between migraine subgroups with and without family migraine history in age at disease onset (P=0.023), duration of headache attack (P=0.041), early age (<16 years)at disease onset (48.6% vs. 22.9%, P=0.023) and long duration (≥24 hours)of attack (35.1% vs. 14.3%, P=0.041). Multi-variables logistic regression analysis identified fist-degree relatives of probands who had ear-ly age at disease onset (OR=2.986, 95%CI:1.621~5.503) and long duration of headache attack (OR=2.320, 95%CI:1.219~4.415) had higher risk of migraine (P<0.05). Conclusion Migraineurs with family migraine history have earlier onset of migraine and longer duration of attack. Early age at headache onset and long duration of headache attack are the risk factors of family aggregation.

Objective To study the effect of licorice on the pharmacokinetics of lovastatin in hyperlipidemic rat model.Methods Eighteen rats were randomly divided into control group (n =6) and test group (n =12).Rats in the test group were administered high fat diet to construct hyperlipidemic rat model.The 12 hyperlipidemic rats were then randomly divided into two groups:lovastatin group (n =6) and lovastatin combined with hcorice group (n =6).The rats in both groups were administered lovastatin capsule (20 mg/kg,0.5％ CMC-Na solution) after receiving licorice (for lovastatin combined with licorice group) or saline (for lovastatin group) for 7 days.Blood samples were collected at different time points before and after the administration of lovastatin capsule.The plasma concentrations of lovastatin and lovastatin acid (an active metabolite of lovastatin) were determined by LC-MS/MS method.Pharmacokinetics parameters were calculated using DAS 2.0 software,and the two groups were compared using SPSS 18.0 software.Results Long-term administration of licorice resulted in a significant increase in the plasma level of lovastatin acid in the hyperlipidemic rat,and the corresponding mean Cmax was approximately 80％ higher than that of the lovastatin group (P ＜ 0.05),while AUC0-t and AUC0-t increased by 115％ and 109％,respectively (P =0.005 and P =0.027).Cmax and AUC of lovastatin also increased,but there was no statistical significance (P ＞ 0.05).Conclusion Licorice can inhibit the metabolism of lovastatin in hyperhpidemic rats and increase its exposure in vivo.

OBJECTIVE:To provide ideas for strengthening the supervision of vaccine. METHODS:According to the regulato-ry defects exposed in the case of Shandong vaccine,combined with own supervision and practice,the problems existing in vaccine regulation were analyzed to put forward suggestions to solve the problem. RESULTS & CONCLUSIONS:There are problems such as supervision system is not perfect;supervision laws and regulations were not perfect;supervision mode is not scientific and so on. It is suggested to perfect regulatory system,improve the regulatory legal system and innovative regulatory approach to ensure reasonable and effective supervision of the vaccine,and improve the quality and safety of the vaccine.

PET/CT is often used in the management of patients with lymphoma ,and have been recom-mended for the staging and response assessment in diffuse large B -cell lymphoma and Hodgkin ,slymphoma .Al-though follicular lymphoma is almost always 18 F-fluorodeoxyglucose avid ,PET/CT is not routinely used in the clinical practice of follicular lymphoma .But there is a growing body of literature supporting the use of PET /CT in follicular lymphoma.Therefore,on the application of PET/CT in follicular lymphoma ,we review the recent litera-tures in this paper .

Objective To observe whether cigarette smoke alter the component of pulmonary surfactant pro-tein A and D. Methods In this study, we determined the contents of SP-A and SP-D in BAL fluids of healthy smok-ers and nonsmokers by enzyme linked immunosorbent assay(ELISA). Resluts The contents of SP-A and SP-D in BAL fluids were significantly decreased in smokers compared to those in nonsmokers[ (3.1±0.40) μg/ml vs (1.8± 0.4)μg/ml, (1.5±0.2) μg/ml vs (0.6±0.1)μg/m, all P <0.05]. Conclusion These results suggested that the decreased levels of SP-A and SP-D in smokers may impair the host defense functions of suffactant in the peripheral airways and might have a crucial role in the development of chronic obstructive lung disease.

Objective To investigate the clinical features and CT findings of cystitis glandularis.Methods The cystoscopic findings,clinical data and CT findings in 12 cases of cystitis glandularis patiens confirmed by cystoscopy and pathology were analyzed retrospectively with literatures review. Results The clinical symptoms included hematuria (8 cases),symptoms of urinary tract infection(3 cases) and dysuria(1 case).The lesions predominataly located at the trigone, neck of the bladder and around the entrances of the ureter.CT showed normality in 3 cases,bladder wall locally thickening in 7 cases( the ranges were 1.6～ 5.5 cm),extensive bladder wall thickening in 1 case. The lesions were isodensity on plain CT images and slightly enhanced after administration of contrast medium, the CT value increased 13.1 HU averagely.Conclusion Cystitis glandularis is of certain CT characteristics,however,no abnormalities are found by CT that can not be ruled out cystitis glandularis.

Objective To investigate the effect of intrathecal injection of ropivacaine in the treatment of carpal tunnel syndrome with nervi medianus entrapment syndrome. Methods 164 patients with carpal tunnel syndrome were selected and divided into two groups, 82 cases in the control group were given intrathecal injection of lidocaine + methylprednisolone + vitamin B1, 82 cases in the experimental group received injection of ropivacaine + methylprednisolone + vitamin B1, the symptom score, nerve electrophysiological examination index, high frequency ultrasound quantitative parameters, the clinical effect and total recurrence rate were compared after treatment. Results The effective rate in the control group(74.39%)was lower than the experimental group(87.81%)(P<0.05); compared with the control group, the visual analogue scale (VAS), global symptom score (GSS), fatigue severity scale (FSS) and Levine carpal tunnel syndrome questionnaire score were lower in the experimental group after treatment, the nervi medianus distal motor latency (DML) level was lower, sensory nerve action potential (SNAP) and sensory conduction velocity (SCV) levels were higher after treatment, the diameter of the nervi medianus, the transverse diameter (a), anteroposterior diameter (b) of nervi medianus and cross sectional area (CSA) were lower after treatment, with significant difference (P<0.05); the total recurrence rate in the control group(53.66%)was higher than the experimental group(37.80%), with significant difference (P<0.05). Conclusion The clinical effect of intrathecal injection of ropivacaine in the treatment of carpal tunnel syndrome with nervi medianus entrapment syndrome was obvious, can effectively alleviate pain, improve the symptoms of nervi medianus entrapment, restore the nervi medianus conduction velocity and function, and reduce the recurrence rate.