Effect of tetrandrine on nitroglycerin induced activation of satellite cells in trigeminal ganglia / 中国中药杂志

<p><b>OBJECTIVE</b>To evaluate the effect of tetrandrine (Tet) on nitroglycerin(GTN)-induced activation of the satellite cells released inflammatory cytokines and to explore its mechanism.</p><p><b>METHOD</b>Neonatal rat satellite cells of trigeminal ganglia were cultured and separated into three groups. Group CON: the cells were normal cultured; Group TGN: the cells were cultured with 0.55 mmol x L(-1) GTN; Group Tet: the cells were treated with 0.55 mmol x L(-1) GTN and 1 x 10(-7) mol x L(-1) Tet respectively. Cell viability after GTN and Tet was detected by AlamarBlue assay. The concentration change of intracellular Ca2+ ([Ca2+]i) in single satellite cell loaded with Fluo-3/AM was determined by laser scanning confocal microscopy. NF-kappaB and IL-1beta mRNA levels were determined by FQ-PCR. Through double-immunofluorescent staining identifies satellite cells and determines the expression of NF-kappaB protein.</p><p><b>RESULT</b>Satellite cells activities decreased with GTN stimulating, but according to the viability and modality of the cells, 1 x 10(-7) mol x L(-1) Tet was the suitable prophylaxis. Tet can inhibit the elevation of cytosolic free calcium of rat satellite cell and decrease the mRNA and protein levels of NF-kappaB and the mRNA levels of IL-1beta.</p><p><b>CONCLUSION</b>Via preventing Ca2+ influxion, Tet inhibited NF-kappaB activation of satellite cell which decreased IL-1beta expression.</p>

Evaluative effects of flash visual evoked potential on the changes of intracranial pressure / 中国组织工程研究

BACKGROUND: Flash visual evoked potential(fVEP) can reflect the integrity of visual pathway from retina to pulvinar cortex. The utilization of its characters can accurately evaluate the injury situation of visual conduction pathway.OBJECTIVE: To investigate the feasibility and effects of fVEP on non-traumatic monitoring of intracranial pressure.DESIGN: A repeated measurement design based on patients.PARTICIPANTS: Totally 197 patients with brain injury including 138males and 59 females with an average of(38 ±9) years old were selected from the First Affiliated Hospital of Chongqing Medical University and Xuanwu Hospital Affiliated to Capital University of Medical Sciences. The selected diseases were: epidural hematoma( n=20),subdural hematoma(n = 26),cerebral contusion( n = 4),subdural hematoma companied with cerebral contusion( n = 92),and cerebral contusion companied with intracerebral hematoma( n = 55).METHODS: The level of intracranial pressure of 197 patients with brain trauma was detected with fVEP and epidural manometry. Data of traumatic surveillance were collected after the completion of fVEP. Changes of blood pressure and heart rate in patients were recorded simultaneously.MAIN OUTCOME MEASURES: fVEP results,and levels of intracranial pressure.RESULTS: The average intracranial pressure of 197 patients with brain trauma was(2.75 ± 0.64) kPa,( 1.54 - 4. 02 kPa) . The dispersion of both traumatic and non-traumatic surveillance was relatively big in patients with confirmed visual pathway injury. No typical wave was induced by fVEP in2.79% of patients. Scatter diagram suggested that the consistence between fVEP and epidural manometry was relatively good. Linear regression analysis showed that heart rate was the most sensitive one to the fluctuation of intracranial pressure (β = -0. 369) followed by systolic pressure (β= 0. 316),while diastolic pressure was not so sensitive (β = 0. 147). There was negative correlation between heart rate and intracranial pressure,which could quite sensitively reflect the fluctuation of intracranial pressure,systolic pressure was the next,and diastolic pressure was not easily to be affected by the changes of intracranial pressure.CONCLUSION: Non-traumatic surveillance,fVEP,has favorable consistence with traumatic detection,which can quantitatively evaluate the changes of intracranial pressure non-traumatically.

Promoting Doctor-patient Communication Immediately / 中华医学教育探索杂志

Doctor-patient communication is the very important part of the relationship between patients and doctors.It builds the trust from patients and protects the interests of doctors and patients.The communication is the useful way to reduce the medical dispute.This paper discusses the importance of communication and gives advices on how to communicate between patients and doctors.

Relationship between matrix metalloproteinase-9 activity and microemboli formation in patients with cerebral infarction and its clinical significance / 第三军医大学学报

Objective To investigate the relation between plasma matrix metalloproteinase 9 (MMP 9) levels and transcranial Doppler (TCD) detected microemboli in patients with cerebral infarction and evaluate the clinical significance. Methods The plasma MMP 9 levels were quantified by ELISA and the microemboli were detected with TCD in 50 stroke patients and 20 controls. Results The level of plasma MMP 9 was significantly higher in microembolic signal positive patients than that in negative ones [median (392.87?210.90) ng/ml for those with emboli versus (202.27?153.40) ng/ml for those without, P

Clinical observation of mannitol therapeutic treatment on high intracranial pressure patients by flash visual evoked potentials / 中华神经科杂志

0.05). However, the reduction of intracranial pressure were gender and age dependent (P

A proteomic approach to study cerebrospinal fluid from migraine patients / 解放军医学杂志

Objective To identify the biomarkers associated closely with migraine by proteomics analysis of cerebrospinal fluid (CSF).MethodsForty-five patients were involved in the present study and they were divided into the following two groups:25 with migraine (5 with aura and 20 without aura) were assigned to migraine group,and 20 with giddiness or peripheral neuropathy were assigned to control group.The patients' CSF was collected,and the protein of CSF was extracted by acetone precipitation.The two-dimensional electrophoresis (2D-PAGE) with immobilized pH gradient (IPG) was performed to display the differently expressed protein spots.These spots were then identified by two-dimensional liquid chromatography and tandem mass spectrometry (2D-LC/MS-MS),and semi-quantitatively analyzed by Western blotting.ResultsDifferences were found in the results of 2D-PAGE between migraine group and control group.Ten spots of 9 kinds of proteins were successfully identified,of which 7 spots were down regulated,including transthyretin (TTR),CBX6 53 kDa protein (CBX6),agrin precursor (AGRN),FAM3C precursor (FAM3C),neuronal pentraxin receptor (NPR),dermcidin-isform2 (DCD) and albumin (ALB);whereas junction plakoglobin (JUP) and H2A histone family,member J (H2AFJ) were up-regulated.The results of Western blotting revealed that the net protein retention (NPR) in migraineurs group (0.3351?0.0275) was obviously decreased compared with that of control group (0.8854?0.0957,P