Objective To observe the changes of the blood pressure after intracerebral hemorrhage (ICH) in spontaneously hypertensive rats (SHRs) as well as the expressions of α2A-adrenergic receptor (AR) in center (brain tissue) and peripheral (renal tissue) α1A-AR and to investigate the correlation between α1A-AR/α2A-AR and blood pressure regulation in acute hypertensive ICH. Methads A total of 30 six-month-old male SHRs were randomly divided into a sham-operation group and ICH (day 1,3, 7 and 14) groups (n =6 in each group). Blood pressure was measured by the tail-cuff method. Collagenase Ⅳ was injected into caudate-puta-men nucleus to induce a model of ICH. The expressions of α1A-AR and α2A-AR were detected by using immunohistochemistry and reverse-transcription polymerase chain reaction. Results One day after ICH, the blood pressure was 195.4 ± 8.39 mm Hg, and it was significantly higher than 177.8 ± 8.69 mm Hg (P = 0. 000) before ICH and 184. 1 ± 3.76 mm Hg in the sham-operation group (P=0. 002). At day 3 it was 185.3 ±9.22 mm Hg, and it was lower than that at day 1. It was 177.7 ±5.62 mm Hg and 176.7 ±6. 06 mm Hg at day7 and 14 respectively, which almost returned to the normal level before ICH. The α1A-AR mRNA and protein in renal tissue at day 1 after ICH were 0. 91 ±0. 013 and 0. 944 ±0. 142%, respectively, They were higher than 0. 89 ±0. 018 and0. 779 ±0. 103% in the sham-operation group, and they reached the peak (0. 93 ±0.015, P =0.008; 1.526 ± 0.296%, P =0.010) at day 3. The α2A-AR mRNA and protein in brain tissue were 0. 93 ±0. 020 and 2.64 ±0. 293% at day 3 after ICH, and they were significantly higher than 0. 86 ±0. 019 (P =0. 001) and 1. 070 ±0. 155% (P = 0. 020), and0.87 ±0. 029 (P =0. 000) at day 1 after ICH and 1. 629 ±0. 488% (P =0. 023) in the sham-operation group. The changes of blood pressure in the ICH day 1 to day 7 grottos in SHRs and correlation coefficient of α2A-AR mRNA absorbance in brain tissue r was - 0. 509 (P = 0.031), and the correlation coefficient of α2A-AR protein-expression volume fraction in brain tissue r was - 0. 473 (P = 0. 047). Conelusions Regulation of blood pressure during acute ICH may have certain correlation with the up-expressions of α2A-AR in brain tissue and α1A-AR in renal tissue.

OBJECTIVETo investigate the clinical efficacy of Shexiang Injection (SI) on inflammatory reaction in patients with acute cerebral infarction (ACI).

METHODSForty-two patients with ACI were randomly divided into two groups, 21 in each group. The control group treated with conventional therapy and the SI group treated with conventional therapy plus SI. Besides, 21 healthy people were arranged in the normal group for control. Expression of CD54 of mononuclear cell (MC-CD54) and serum level of soluble vascular cell adhesion molecule-1 (sVCAM-1) were determined and the clinical efficacy was observed dynamically before treatment and on the 7th, 14th day of the course.

RESULTSLevels of MC-CD54 expression and sVCAM-1 in the ACI patients increased obviously (P < 0.01), reached the peak on the 7th day, and declined obviously on the 14th day in both groups, however, the lowering in the SI group was more significant than that in the control group (P < 0.01); and positive correlation was shown between these two indexes (P < 0.01). After treatment, score of neural defect was improved more significantly (P < 0.01), and the markedly effective and curative rate was higher in the SI group than those in the control group (P < 0.05), respectively.

CONCLUSIONSI could inhibit the subsequent inflammatory reaction, and thus improve the clinical efficacy of conventional therapy in treating patients with ACI.

Aged ; Cerebral Infarction ; blood ; drug therapy ; Drug Administration Schedule ; Drugs, Chinese Herbal ; administration & dosage ; therapeutic use ; Female ; Humans ; Injections, Intravenous ; Intercellular Adhesion Molecule-1 ; blood ; Leukocytes, Mononuclear ; drug effects ; metabolism ; Male ; Middle Aged ; Phytotherapy ; Treatment Outcome ; Vascular Cell Adhesion Molecule-1 ; blood

Objective To investigate the expression of inregrin?_3 and integrin?_1 in breast cancer and its bio- logical significance.Methods Immunohistochemical assay was used to determine the expression of integrin?_3 and integrin?_1 in the breast cancer(32 cases).Results In normal breast tissue,the positive expression rates of integrin?_3 and integrin?_1 were 0 % and 25 %.In the breast cancer tissue,the positive expression rates of integrin?_3 and inte- grin?_1 were 36 % and 81%.Conclusion The integrin?_3 and integrin?_1 are close associated with the biological sig- nificance of breast cancer.To examine its expression is useful to evaluate the aggressive degree,metastatic potential and prognosis in patients with breast cancer.

To study the dynamic change law of bioactive constituents from Polygonum multiflorum, and to explore the optimal harvest period of P. multiflorum. Determination of stilhene glucoside, anthraquinones and catechin from P. multiflorum in different harvest times by MEKC-DAD, and principal component analysis (PCA) was used to comprehensive evaluation for bioactive constituents. There are obvious differences among the contents of active ingredients in various collecting periods samples, the content of stilbene glucoside was the highest in November, the total content of combined anthraquinone was the highest in November and December, the content of catechin was the highest in September. The comprehensive evaluation index obtained with principal component analysis showed that the sample collected in November is significantly higher than those with other samples. The optimal harvest period of P. multiflorum is November.
Electrophoresis ; Fallopia multiflora ; chemistry ; growth & development ; metabolism ; Time Factors

OBJECTIVETo investigate the effect of liposome-mediated glial cell line-derived neurotrophic factor (GDNF) gene transfer in vivo on spinal cord motoneurons after spinal cord injury (SCI) in adult rats.

METHODSSixty male Sprague-Dawley rats were divided equally into two groups: GDNF group and control group. The SCI model was established according to the method of Nystrom, and then the DC-Chol liposomes and recombinant plasmid pEGFP-GDNF cDNA complexes were injected into the injured spinal cord. The expression of GDNF cDNA 1 week after injection was detected by RT-PCR and fluorescence microscope. We observed the remaining motoneurons in the anterior horn and the changes of cholinesterase (CHE) and acid phosphatase (ACP) activity using Nissl and enzyme histochemistry staining. The locomotion function of hind limbs of rats was evaluated using inclined plane test and BBB locomotor scale.

RESULTSRT-PCR and fluorescence observation confirmed the presence of expression of GDNF cDNA 1 week and 4 weeks after injection. At 1, 2, 4 weeks after SCI, the number of motoneurons in the anterior horn in GDNF group (20.4+/-3.2, 21.7+/-3.6, 22.5+/-3.4) was more than that in control group (16.8+/-2.8, 17.3+/-2.7, 18.2+/-3.2, P<0.05). At 1, 2 weeks after SCI, the mean gray of the CHE-stained spinal motoneurons in GDNF group (74.2+/-25.8, 98.7+/-31.6) was less than that in control group (98.5+/-32.2, 134.6+/-45.2, P<0.01), and the mean gray of ACP in GDNF group (84.5+/-32.6, 79.5+/-28.4) was more than that in control group (61.2+/-24.9, 52.6+/-19.9, P<0.01). The locomotion functional scales in GDNF group were higher than that in control group within 1 to 4 weeks after SCI (P<0.05).

CONCLUSIONSGDNF gene transfer in vivo can protect motoneurons from death and degeneration induced by incomplete spinal cord injury as well as enhance locomotion functional restoration of hind limbs. These results suggest that liposome-mediated delivery of GDNF cDNA might be a practical method for treating traumatic spinal cord injury.

Animals ; Disease Models, Animal ; Gene Transfer Techniques ; Glial Cell Line-Derived Neurotrophic Factor ; Injections, Intralesional ; Liposomes ; Locomotion ; physiology ; Male ; Motor Neurons ; drug effects ; Nerve Growth Factors ; pharmacology ; Nerve Regeneration ; physiology ; Neuroprotective Agents ; pharmacology ; Primary Prevention ; methods ; Probability ; RNA, Messenger ; analysis ; Rats ; Rats, Sprague-Dawley ; Recovery of Function ; Reference Values ; Reverse Transcriptase Polymerase Chain Reaction ; Spinal Cord Injuries ; pathology ; prevention & control ; therapy

OBJECTIVETo evaluate the role of muscle fatigue in the pathogenesis of high prevalence of low back pain(LBP) in drivers who work at high altitude, in order to seek the effective measures for prevention and treatment of LBP.

METHODThe spectral electromyographic(EMG) changes during isometric contraction of erector spinalis to fatigue in 26 drivers in the field were consecutively recorded after daily driving for 5 days. The relationship between the decline of median frequency and the development of the back extensor fatigue were analyzed.

RESULTSThe decline rates of EMG median frequency of the erector spinalis on 1-5 working day [(-0.258 +/- 0.087), (-0.248 +/- 0.070), (-0.256 +/- 0.097), (-0.267 +/- 0.093), (-0.274 +/- 0.081)%/s respectively] were significantly different from that of baseline measured before work [(-0.175 +/- 0.114)%/s, P < 0.05 or P < 0.01]. A positive correlation was also found between the decline rate and the working time(r = -0.809, P < 0.05).

CONCLUSIONThe high prevalence of LBP in the drivers working at high altitude is due to acumulative fatigue of back extensor resulting from long-distance driving, lack of proper rest, decrease of muscle endurance and increase of liability to fatigue, consequently leading to the muscle dysfunction and finally LBP.

Altitude ; Automobile Driving ; Electromyography ; Humans ; Low Back Pain ; etiology ; physiopathology ; Muscle Fatigue ; physiology ; Occupational Diseases ; etiology

Objective:To observe the effect of acupuncture in regulating ubiquitin-proteasome pathway (UPP),and discuss the action of acupuncture in intervening heroin-induced brain damage.Methods:Thirty male Sprague-Dawley (SD) rats were divided into a control group,a model group and an acupuncture group by using the random number table.Rats in the model and acupuncture groups received intramuscular heroin injection for successive 8 d at a progressively increased dose.Afterwards,the injection was suspended for 5 d for withdrawal.The heroin relapse rat model was established by repeating the drug addiction and withdrawal process for 3 times.The control group followed the step of the model establishment,but was given intramuscular injection of normal saline at the stage of addiction and no intervention at the stage of withdrawal;the model group was given intramuscular heroin injection at a progressively increased dose at the addiction stage and no intervention at the withdrawal stage;the acupuncture group was dealt in the same way as the model group at the addiction stage,but received acupuncture at Baihui (GV 20) and Dazhui (GV 14) at the withdrawal stage,with the needles retained for 30 min each time,1 session a day,for successive 5 d.On the 39th day,brain tissues were extracted from the hippocampus and ventral tegmental area (VTA) of the three groups of rats.The apoptosis of brain nerve cells was detected by using terminal deoxynucleotidyl transferase-mediated nick and labeling (TUNEL).The mRNA and protein expressions of ubiquitin (Ub),ubiquitin protein ligase (E3) and 26S were examined by immunohistochemistry and quantitative real-time polymerase chain reaction (RT-qPCR).Results:Compared with the model group,rat's hippocampus and VTA in the acupuncture group showed significantly fewer cells positively stained by TUNEL staining (P＜0.01),and its mRNA and protein expressions of Ub,E3,26S were significantly lower (P＜0.01).Conclusion:Reducing nerve cell apoptosis and regulating the mRNA and protein expressions of Ub,E3 and 26S in rat's hippocampus and VTA are possibly one of the action mechanisms of acupuncture in intervening heroin-induced brain damage.

Objective To investigate the clinical significance of the changes of serum level of high mobility group protein B1 (HMGB1) in patients with severe pneumonia complicated with sepsis.Methods Fifty patients with severe pneumonia complicated with sepsisin in Respiratory Intensive Care Unit(RICU) of Xinxiang Central Hospital from April 2014 to March 2017 were selected as observation group;while 50 healthy individuals were selected as control group.The patients in the observation group were divided into death group(n =32) and survival group(n =18) according to the prognosis.The serum levels of procalcitonin(PCT) and HMGB1 of patients in the observation group were detected on the 1st,3rd,7th day of patients hospitalized in the RICU,while the acute physiology and chronic health evaluation Ⅱ (APACHE lⅡ)scores of the patients were evaluated.The serum levels of PCT and HMGB1 of subjects in the control group were detected during physical examination.Results There was no statistic difference in the mean arterial pressure,oxygenation index,body temperature and total white cell count of patients between the death group and survival group(P ＞0.05).On the first day of patients hospitalized in the RICU,the serum levels of PCT and HMGB1 of patients in the observation group were significantly higher than those in the control group (P ＜0.05).The serum levels of HMGB1 and the APACHEⅡ scores of patients in the death group were significantly higher than those in the survival group at each time point(P ＜0.05).On the first day of patients hospitalized in the RICU,there was no statistic difference in the serum level of PCT of patients between the death group and survival group (P ＞ 0.05);the serum level of PCT of patients in the death group was significantly higher than that in the survival group at another time point (P ＜ 0.05).The serum level of HMGB1 of patients in the observation group was positively correlated with the PCT and APACHE Ⅱ score (r =0.562,0.460;P ＜0.05).Conclusion The serum level of HMGB1 in patients with severe pneumonia complicated with sepsis is increased;and the increase of serum level of HMGB1 in the death cases is more obvious than that in the survival cases.So it can be used to evaluate the patient's condition and judge the prognosis.

Objective To evaluate the value of transesophageal echocardiography (TEE) in transthoracic minimally invasive device closure of ventricular septal defect(VSD).Methods A total of 164 cases of VSD were recruited as candidates to receive transthoracic minimally invasive device closure between January 2007 and October 2010,including 138 perimembranous VSDs,3 muscular VSDs and 23 supracristal VSDs.Among these groups,85 male patients were included.Four-champer view,five-champer view,left ventricular long-axis view,short-axis view and right ventricular inflow view were detected to evaluate the availability of device closure.Results A total of 152 cases(92.7%)were successfully closed with a device.All the patients were followed up more than 3 months arranged with a standard protocol.No complete atrioventricular block (CAVB) or associated valvular complications were observed.Three of the five cases with traced residual shunt after device closure closed spontaneously.Conclusion TEE plays an important role in transthoracic minimally invasive device closure of ventricular septal defect,which has been proved by the good follow-up results without CAVB and associated valvular complications.

OBJECTIVE: To investigate the curative effect of electrocorticography (ECoG) monitoring in the microsurgical treatment of cavernous angiomas. METHODS: Clinical data of 71 patients with epileptogenic cavernous angiomas,who had been performed ECoG monitoring during the operation,were analyzed retrospectively. RESULTS: The foci of cavernous angiomas and epilepsy of the 71 patients were resected during the operation. In the 58 patients who were followed up,42 had not epileptic seizure,and 16 still had epileptic seizure,while the frequencies of 13 patients reduced to below 10%,and 3 patients over 10%. CONCLUSION The drug treatment of epileptogenic cavernous angiomas can not control epileptic seizure,and the patients should receive the microsurgical treatment early. Electrocorticography monitoring can direct the surgical procedure,and control the postoperative epileptic seizure.
Adolescent ; Adult ; Cerebral Cortex ; physiopathology ; Electroencephalography ; Epilepsy ; etiology ; Female ; Hemangioma, Cavernous, Central Nervous System ; complications ; surgery ; Humans ; Male ; Microsurgery ; methods ; Middle Aged ; Monitoring, Intraoperative ; methods ; Neurosurgical Procedures ; methods