Objective To study the differential diagnosis o n cerebral concussion and mild cerebral contusion value of the brain type creati n e kinase isoenzyme(CK-BB),and evaluate the seriousness of brain damage and prog nosis of the patients with acute head injury.Methods Chromatographic separating and fluorometric quant ifying technique was used to detect the CK-BB activity in the cerebrospinal flu id(CSF) of 117 patients with acute head injury and 12 patients with increased in tracranial pressure and 20 normal people.Results The CSF-CK-BB activity of the patients with acu te head injury was remarkably higher than that of the normal people and the CSF -CK-BB activity increased with the seriousness of brain damage.There was a clo se relationship between CSF-CK-BB activity and prognosis,and higher activity o f CSF-CK-BB indicated poor prognosis.Conclusion CSF-CK -BB activity could be used as a new index to diagnose brain damage and evaluate the seriousness of brain damage and prognosis.

The aim of present study is to investigate the cardioprotective effect of a new compound acetyl ferulaic isosorbide (AFI), composed of ferulaic acid (FA) and isosorbide mononitrate (ISMN) by esterification in myocardial ischemia/reperfusion (MI/R). Male Sprague-Dawley rats, subjected to 30 minutes of myocardial ischemia and 3 hours of reperfusion, randomly received one of the following treatments separately: SHAM, I/R (MI/R + solvent), SF (MI/R+SF, 40 mg x kg(-1), ig), ISMN (MI/R + ISMN, 30 mg x kg(-1), ig), SF + ISMN (MI/R + SF + ISMN, 40 mg x kg(-1) + 30 mg x kg(-1), ig) and AFI (MI/R + AFI, 10 mg x kg(-1), ig). Left ventricle developed pressures (LVDP) and the maximal first derivative of developed pressure ( +/-dP / dtmax) were monitored throughout the experiments. Myocardial infarction size, serum creatine kinase (CK) activity, lactate dehydrogenase (LDH) activity, superoxide dismutase (SOD) activity, hydrogen peroxide (H2O2), malondialdehyde (MDA) and nitric oxide (NO) production were determined at the end of reperfusion. Compared with SF, ISMN or SF + ISMN treatment groups, AFI treatment decreased infarction size (n=8, P < 0.01), improved cardiac function as evidenced by increased LVDP and +/- dP/dtmax (n=8, P < 0.05), increased serum SOD activity, reduced serum CK and LDH activities, H2O2 and MDA production (n=8, P < 0.05). The new compound AFI showed a stronger cardioprotective effect against MI/R injury than SF, ISMN or their combined administration did.
Animals ; Cardiotonic Agents ; chemical synthesis ; chemistry ; pharmacology ; Creatine Kinase ; blood ; Electrocardiography ; Hydrogen Peroxide ; blood ; Isosorbide Dinitrate ; analogs & derivatives ; chemical synthesis ; chemistry ; pharmacology ; L-Lactate Dehydrogenase ; blood ; Male ; Malondialdehyde ; blood ; Myocardial Reperfusion Injury ; blood ; pathology ; physiopathology ; prevention & control ; Myocardium ; pathology ; Nitric Oxide ; blood ; Random Allocation ; Rats ; Rats, Sprague-Dawley ; Superoxide Dismutase ; blood

OBJECTIVETo observe matrine-induced erythroid differentiation of K562 cells in relation to activation of the apoptotic pathway in vitro.

METHODSK562 cells were cultured in the presence or absence of matrine at different concentrations for 4 days, and the morphological and ultramicrostructural changes of the cells were observed using inverted microscopy and transmission electron microscopy, respectively. The expression of apoptosis-related protein p27kip1 was detected by immunocytochemistry.

RESULTSCompared to untreated K562 cells, the cells treated with matrine at 0.10 g/L exhibited apoptostic characteristics in the cellular morphology and ultramicrostructure, with the expression of p27kip1 protein upregulated in a concentration- and time-dependent manner.

CONCLUSIONMatrine-induced erythroid differentiation of K562 cells is associated with cell apoptosis, and upregulation of p27kip1 protein expression may play a crucial role in the process of apoptosis.

Alkaloids ; pharmacology ; Antineoplastic Agents, Phytogenic ; pharmacology ; Apoptosis ; drug effects ; physiology ; Cyclin-Dependent Kinase Inhibitor p27 ; biosynthesis ; Dose-Response Relationship, Drug ; Humans ; Immunohistochemistry ; K562 Cells ; Leukemia, Erythroblastic, Acute ; metabolism ; pathology ; Microscopy, Electron, Transmission ; Quinolizines ; pharmacology ; Signal Transduction ; drug effects ; Time Factors

Adult ; Female ; Follow-Up Studies ; Fracture Fixation, Internal ; methods ; Fractures, Bone ; diagnostic imaging ; physiopathology ; surgery ; Humans ; Male ; Middle Aged ; Pelvic Bones ; injuries ; surgery ; Recovery of Function ; Skin ; Tomography, X-Ray Computed

Adult ; Female ; Follow-Up Studies ; Fractures, Bone ; diagnostic imaging ; physiopathology ; surgery ; Humans ; Male ; Middle Aged ; Pelvic Bones ; injuries ; Rotation ; Tomography, X-Ray Computed ; Young Adult

OBJECTIVE: To analyze pathological characteristics of organs recovered during forensic autopsy submitted by legal medicine experts. METHODS: From Baoji city, 358 cases of forensic autopsy specimens from a series of routine exams were collected. And histopathological diagnoses were reviewed. RESULTS: Majority of the 358 cases were young men. The major causes of death were trauma, sudden death and poisoning. The cause of death was determined with histology in 250 cases. No typical histological changes were noted in 101 cases. The tissue autolysis and decomposition were present in 7 cases. The major pathological diagnosis was cardiovascular disease, followed by diseases in respiratory, nervous, and digestive systems. CONCLUSION Forensic autopsy with its professional characteristics, is different from regular autopsy. When diagnosing cause of death by histopathological examination, pathologists should collaborate with legal medicine experts to know the details of the cases, circumstances surrounding the death, and specific forensic pathological characteristics.
Anxiety ; Autolysis ; Autopsy ; Cardiovascular Diseases ; Cause of Death ; China ; Cooperative Behavior ; Death, Sudden ; Female ; Forensic Medicine ; Forensic Pathology ; Humans ; Interprofessional Relations ; Male

To discuss the effects of total glucosides from white paeony on preventing and treating radioactive liver damage, and explore its possible mechanisms. Thirty-six patients with primary hepatic carcinoma from 105th Hospital of Chinese PLA were treated with 3-dimensional conformal radiotherapy and randomly divided into simple irradiation group, total glucosides from white paeony group, and control group. The levels of AST, ALT, HA, LN, PCⅢ, CIV and TGF-β1 in serum of various groups were determined by using ELISA method. As compared with the simple irradiation group and control group, total glucosides from white paeony could obviously decrease the levels of AST, ALT, HA, LN, PCⅢ, CIV and TGF-β1(P<0.05, P<0.01). The results showed that the total glucosides from white paeony could effectively prevent and treat radioactive liver damage, and its mechanism might be associated with decreasing the levels of TGF-β1, and inhibiting the synthesis of collagen synthesis.

BACKGROUNDMany investigators advocate anterior release combined with halo-femoral traction and posterior fusion when treating stiff thoracic curves in patient with adolescent idiopathic scoliosis (AIS). But the anterior operations often induce severe complications. Some surgeons choose posterior-only surgery with halo-femoral traction, posterior wide release and correction. But to the best of our knowledge, there are only rare prospective studies on these posterior-only surgeries for AIS patients who have a rigid curve more than 80° and flexibility less than 35%.

METHODSSixty-four AIS patients were recruited from September 2006 to June 2009. All patients had rigid curves and underwent spinal correction. They were randomly divided into group A (combined anteroposterior surgery) and group B (posterior-only surgery). Images and scoliosis research society-22 questionnaire (SRS-22) scores were performed pre- and post-operation and during follow-up visits. The operation time, blood loss, hospital days, and hospital charges were compared between the two groups.

RESULTSThese patients were followed for an average of 37.5 months (range, 24 - 65 months). No serious complications were observed. There were no significant differences between the two groups in gender, age, preoperative radiographic data, or preoperative SRS-22 score. The average operation time, blood loss, hospital days and hospital charges in group B were less than those in group A. The SRS-22 score in group B was better than in group A at post-operation and at final follow-up.

CONCLUSIONSIn AIS with a rigid curve more than 80° and flexibility less than 35%, strong halo-femoral traction with wide posterior spinal release and three dimensional spinal correction can provide better SRS-22 scores, comparable curve correction, shorter operation time, less blood loss, shorter hospital stays and lower charges when compared to combined anterior and posterior surgery.

Adolescent ; Child ; Female ; Humans ; Male ; Prospective Studies ; Radiography ; Scoliosis ; diagnostic imaging ; surgery

Background Many investigators advocate anterior release combined with halo-femoral traction and posterior fusion when treating stiff thoracic curves in patient with adolescent idiopathic scoliosis (AIS).But the anterior operations often induce severe complications.Some surgeons choose posterior-only surgery with halo-femoral traction,posterior wide release and correction.But to the best of our knowledge,there are only rare prospective studies on these posterior-only surgeries for AIS patients who have a rigid curve more than 80° and flexibility less than 35％.@@Methods Sixty-four AIS patients were recruited from September 2006 to June 2009.All patients had rigid curves and underwent spinal correction.They were randomly divided into group A (combined anteroposterior surgery) and group B (posterior-only surgery).Images and scoliosis research society-22 questionnaire (SRS-22) scores were performed praand post-operation and during follow-up visits.The operation time,blood loss,hospital days,and hospital charges were compared between the two groups.@@Results These patients were followed for an average of 37.5 months (range,24-65 months).No serious complications were observed.There were no significant differences between the two groups in gender,age,preoperative radiographic data,or preoperative SRS-22 score.The average operation time,blood loss,hospital days and hospital charges in group B were less than those in group A.The SRS-22 score in group B was better than in group A at post-operation and at final follow-up.@@Conclusions In AIS with a rigid curve more than 80° and flexibility less than 35％,strong halo-femoral traction with wide posterior spinal release and three dimensional spinal correction can provide better SRS-22 scores,comparable curve correction,shorter operation time,less blood loss,shorter hospital stays and lower charges when compared to combined anterior and posterior surgery.

Objective To understand the viral etiology of viral encephalitis in China by detecting IgM antibody and viral RNA in the clinical samples of patients from some provinces of China by enzyme-linked immunosorbent assay and polymerase chain reaction. Methods Serum and cerebrospinal fluid samples of 771patients with viral encephalitis or meningitis were collected from six provinces of China and were stored at-20℃or - 70℃. Enzyme-linked immunosorbent assays were used for detection of IgM antibody to Japanese encephalitis virus, coxsackievirus, echovirus, herpes simplex virus, measles virus, varicella-zoster virus, mumps virus,cytomegalovirus and Epstein-BaiT virus. Polymerase chain reaction was applied for the detection of viral RNA of enteroviruses and seadornavirus. Results IgM antibody was detected in 567 of 771 (73.5 % ) eases. The most common pathogen was Japanese encephalitis virus (47.0% ,362/771), followed by mumps virus (10.6%, 82/771 ), enteroviruses (8.8% , 68/771 ), herpes simplex virus ( 5.7% , 44/771 ), measles virus ( 0. 4 % , 3/771 ),varicella-zoster virus (0.4% ,3/771 ), Epstein-Barr virus (0.4% , 3/771 ), and cytomegalovirus (0.3 % ,2/771 ) .Enterovirus was positive in 8 cases, seadoruavirus was negative in all the cases by PCR. Conclusion According to the study, Japanese encephalitis was the most important encephalitis in China. Mumps virus was another important pathogen. Enteroviruses and herpes simplex virus were also important pathogens.