Objective: To investigate the applicative value of multislice spiral computed tomography angiography (MSCTA) in the microsurgery of ruptured intracranial aneurysm caused acute intracerebral hematoma. Methods: The imaging and clinical data of 15 patients with ruptured intracranial aneurysm caused intracerebral hematomas, whom underwent emergency surgery after preoperative CT angiography (CTA) were analyzed retrospectively. The surgical plan was determined according to the CTA imaging results. The hematomas were evacuated and the aneurysm were clipped. The applicative value of CTA were evaluated. Results: All the 15 patients were confirmed as intracranial aneurysms in the operation, which was essentially consistent with the preoperative diagnosis by CTA. The size and growth direction of the aneurysms were essentially consistent with the preoperative judgement, and all the aneurysms were clipped. The prognosis of the patients was assessed by the Glasgow Outcome Scale (GOS). All the patients were followed up by the outpatient department and/or telephone for 6 to 78 months (mean 24 months). The GOS score in 2 patients was 2, in 2 was 3, in 6 was 4, and in 5 was 5. Conclusion: Head CTA can briefly and quickly identify the ruptured intracranial aneurysm caused intracerebral hematoma and provide intuitive three-dimensional morphology and anatomical localization of the aneurysms. It is helpful to hematoma evacuation and clipping of the aneurysms in emergency operation.

A method was developed for the simultaneous determination of 17 characteristic ingredients of plant extracts, including paeoniflorin, hydroxysafflor yellow A, calycosin_7_glucoside ferulic acid, etc. , in hair growth cosmetics using ultra high performance liquid chromatography ( UPLC ) . Different cosmetic samples were extracted by ultrasonic_assisted extraction with the solvent of methanol/water (4∶1, V/V) solution. After demulsified by the addition of appropriate amount of NaCl and high speed centrifugation, the supernatant was transferred and analyzed with UPLC. The separation was conducted on a Waters reversed phase column of ACQUITY UPLC CSH C18(50 mm×2. 1 mm, 1. 7μm), and the mobile phases were methanol and the solution of 0. 05% phosphate in water. The detection was performed with a photodiode_array ( PDA) detector. The linear range was 0 . 2-25 mg/L with correlation coefficients higher than 0 . 999 . The limits of detection were within 0. 3-1. 5 mg/kg, and the limits of quantification were from 1. 0 to 4. 0 mg/kg. The average recoveries of 17 characteristic ingredients were within 93 . 5%-105 . 0%, with the intra_and inter_day precision ( n=6 ) less than 4. 6%. This method was simple, rapid, with good_repeatability, and had been applied to the analysis of real samples.

OBJECTIVETo study and analyze the factors affecting the recovery of posterior communicating artery aneurysm-induced oculomotor nerve palsy (ONP).

METHODSThe clinical and follow-up data of posterior communicating artery aneurysm-induced ONP in 23 patients from May 2005 to May 2009 were retrospectively compared. There were 7 male and 16 female with a mean age of 50.4 years. Among the 23 patients, 13 patients underwent endovascular coiling (endovascular group) and 10 patients underwent surgical clipping (surgical group).

RESULTSOf the patients with 2 year of follow-up, 6 patients recovered completely and 7 patients recovered partially in the endovascular group, compared with 6 patients recovered completely and 4 patients recovered partially in the surgical group (P = 0.407). Compared to the patients with preoperative complete ONP, the rate of complete recovery was higher in the patients with preoperative partial ONP, while the results did not reach the significance (P = 0.095). Patients accepted treatment in 14 days since the onset of symptoms recovered significantly than who accepted treatment after 14 days since the onset of symptoms (P = 0.045).

CONCLUSIONSThere is no significant difference in recovery from ONP between endovascular coiling and surgical clipping as treatment for posterior communicating artery aneurysm patients with ONP. Timing of treatment after onset of symptoms is a factor affects the recovery of ONP.

Adult ; Aged ; Embolization, Therapeutic ; Female ; Follow-Up Studies ; Humans ; Intracranial Aneurysm ; complications ; surgery ; therapy ; Male ; Middle Aged ; Oculomotor Nerve Diseases ; etiology ; Retrospective Studies ; Treatment Outcome

OBJECTIVETo study the expression change of interleukin-8 (IL-8) gene in the basilar artery of rabbit and the effect of IL-8 on the development of cerebral vasospasm induced by experimental subarachnoid hemorrhage (SAH).

METHODSThirty five healthy Japanese White Rabbits were randomly divided into saline-control group and experimental group. The experimental group was subdivided into four groups, representing day 1, 4, 7 and 14 after the first blood injection of SAH. The delayed cerebral vasospasm (DCVS) model was established by double injection of autologous blood into the cisterna magna. The expression change of cytokine IL-8 mRNA in the basilar artery was analyzed by RTPCR.

RESULTSThe expression of IL-8 gene increased on day 4-7 after the first blood injection of SAH compared with control (P< 0.001), and decreased to normal on day 14. The expression of IL-8 gene in the SAH groups were positively correlated with the degree of basilar artery stenosis (r = 0.642, P< 0.01).

CONCLUSIONThe expression level of IL-8 gene in basilar arteries was intimately associated with the degree of cerebral vasospasm, suggesting that IL-8 may play an important role in the DCVS after SAH as an immunological inflammatory factor.

Animals ; Basilar Artery ; metabolism ; Disease Models, Animal ; Gene Expression Regulation ; physiology ; Interleukin-8 ; genetics ; metabolism ; RNA, Messenger ; biosynthesis ; Rabbits ; Reverse Transcriptase Polymerase Chain Reaction ; methods ; Subarachnoid Hemorrhage ; metabolism ; pathology ; Time Factors

Objective To study the influence on the tumor after percutaneous intra-tumor injection of ~(32)P-GMS in liver cancer as well as its suitable dose.Methods 24 New Zealand rabbits were used to establish the animal model of VX-2 liver cancer,and divided into A,B,C and D groups with individually 37,74,111 and 148 MBq of ~(32)P-GMS being injected,respectively;and then pathological changes of tumor were observed by light and electron microscope respectively.Result The dose of ~(32)P-GMS was obviously correlated with the radioactivity damage of tumor cells.In the A and B groups,the tumor cells were not observed to disappear completely after injection of ~(32)P-GMS,but in C group,tumor cells were almost completely disappeared and surrounded by a lot of connective tissue.Although the tumor cells were found to disappear completely in D group,normal liver tissues were also involved.Conclusion Percutaneous intra-tumor injection of ~(32)P-GMS with suitable dose that may induce the tumor tissue to be maximally damaged and may also provide some significances to prevent the tumor metastasis.

OBJECTIVETo explore relationship between HBeAg seroconversion with HBV genotypes and HBV specific CTL in patients with chronic hepatitis B (CHB) treated with Adefovir dipivoxil.

METHODSSeventy CHB patients had positive HBV DNA (HBV DNA > or = 1 x 10(4) copy/ml), 45 cases had positive HBeAg, of whom 23 cases (51. 11%) had genotype B, 22 cases (48.89%) had genotype C. ALT > 2 x upper limit of normal value (ULN), human leukocyte antigen (HLA)-A(n) positive, patients were treated with Adefovir dipivoxil (commercial name is Mingzheng, Zhengda Tianjing Pharmaceutical Company), 10 mg, orally, once a day. After treatment for 12 months, observe relationship between HBeAg seroconversion with HBV genotypes and HBV specific CTL.

RESULTSAfter treatment with Adefovir dipivoxil for 12 months, HBV specific CTL (0.68% +/- 0.11%) was higher than that before treatment (0.33% +/- 0.11%), t = 8.36 P < 0.001, HBV DNA (3.01 +/- 0.2) log10 copy/ml was lower than that before treatment (6.27 +/- 0.70) log10 copy/ml, t = 12.63 P < 0.001, HBV DNA turned negative (< 500 copy/ml) 43 cases (61.43%), in 45 cases with positive HBeAg, HBeAg turned negative in 13 cases (28.89%), 8 cases had HBeAg seroconversion (17.78%), HBV specific CTL (0.86% +/- 0.05%) of patients with HBeAg seroconversion is higher than (0.61% +/- 0.07%) of patients without HBeAg seroconversion (37 cases, 82.22%) t = 7.88, P < 0.001. In 8 cases with HBeAg seroconversion, 7 cases had genotype B (30.43% of genotype B), 1 cases had genotype C (4.55% of genotype C), chi2 = 5.15, P < 0.05.

CONCLUSIONAdefovir dipivoxil can enhance HBV specific cellular immunity of CHB patients. After treatment, occurrence of HBeAg seroconversion is related to increase of HBV specific CTL level and may be related to genotypes.

Adenine ; analogs & derivatives ; therapeutic use ; Adult ; Antiviral Agents ; therapeutic use ; Female ; Hepatitis B e Antigens ; blood ; immunology ; Hepatitis B, Chronic ; drug therapy ; immunology ; Humans ; Immunity, Cellular ; drug effects ; Male ; Organophosphonates ; therapeutic use ; T-Lymphocytes, Cytotoxic ; immunology

This study was aimed to investigate the expression and activity of membrane surface tissue factor (TF) of monocytes and platelets in peripheral blood cells from patients with cerebral infarction and their clinical significance. The TF expressions in monocytes and platelets from 25 patients with cerebral infarction were detected by flow cytometry, the TF activity was detected by chromogenic reaction method, and compared with 24 normal people used as control. The results showed that the TF expressions of monocytes and platelets in peripheral blood cells from patients with cerebral infarction were significantly higher than that in normal controls (p<0.01), and TF activity was also higher in patients than that in controls (p<0.01). In conclusion, the expression and activity of membrane surface in patients with cerebral infarction were enhanced, the hematocyte-derived tissue factor as a trigger in coagulation pathway is involved in pathological thrombosis in patients with cerebral infarction.
Aged ; Blood Cells ; metabolism ; Case-Control Studies ; Cerebral Infarction ; blood ; metabolism ; Erythrocyte Membrane ; metabolism ; Female ; Flow Cytometry ; Humans ; Male ; Middle Aged ; Monocytes ; metabolism ; Thromboplastin ; metabolism

OBJECTIVETo investigate the diagnostic value of computerized tomographic angiography (CTA) and magnetic resonance angiography (MRA) for intracranial traumatic aneurysms (TAs).

METHODSCTA and MRA of six patients with intracranial TAs verified by digital subtraction angiography (DSA) and surgery were retrospectively analysed. All patients were examined by nonenhanced computerized tomography (CT) and two by CTA. The source data were reconstructed by volume rendering (VR) and multi-planar reconstruction (MPR) from CTA. Four of them had maximum intensity project (MIP) from MRA.

RESULTSOf the six patients, a total of seven TAs were detected by CTA and MRA examinations. Five cases had only one TA and one case had two TAs. The average diameter was 2.3 cm (1.1-3.3 cm). CTA demonstrated two TAs appeared at the cavernous segment of the internal carotid artery (ICA) and the middle cerebral artery (MCA) respectively. MCA TA was definitely and clearly demonstrated on VR images, whereas VR images failed to depict the cavernous ICA TA, which was detected on MPR images. Two TAs were found irregular saccular shape, irregular margin of parent artery and wide neck on CTA. Four MRA examinations demonstrated five TAs, including the cavernous segment ICA TAs (2 cases), the supraclinoid segment ICA TA (1 case), and the cavernous segment associated with opposite side of the petrosal segment ICA TA (1 case). In a cavernous ICA TA, MRA only revealed aneurysm body, whereas aneurysm neck and distal segment of the parent artery were not revealed. In the remaining cases, MRA clearly depicted aneurysm body and parent artery, whereas the neck was not displayed. ICA TAs showed irregular capsule-like high signal intensity on MRA images. Four TAs exhibited irregular distal segment of the parent artery. TAs at the supraclinoid segment or MCA failed to find fracture signs on nonenhanced CT.

CONCLUSIONSBoth CTA and MRA examinations are the effective non-invasive method of imageology for diagnosing intracranial TAs, while CTA is more eligible for diagnosing TAs after nonenhanced CT has demonstrated skull base fractures.

Adult ; Aged ; Brain Injuries ; diagnosis ; Cerebral Angiography ; Female ; Humans ; Intracranial Aneurysm ; diagnosis ; Magnetic Resonance Angiography ; Male ; Middle Aged ; Retrospective Studies ; Tomography, X-Ray Computed

Objective To investigate the effects of different vibration durations on expression level of osteogenesis-related proteins by loading low intensity mechanical vibration in the ovariectomized (OVX) rats. Methods Twenty-four 6-month old female Wistar rats were ovariectomized and then randomly divided into 8-week-control group (C8), 12-week-control group (C12), 8-week-vibration group (V8), and 12-week-vibration group (V12). Vibration treatment was started one week after all the rats were ovariectomized. Rats in both V8 and V12 groups were loaded with 35 Hz, 0.25 g low intensity mechanical vibration for 15 minutes per day. C8 and C12 groups served as control without any treatment. Rats were executed in batch at 8th and 12th week, respectively, to analyze expression level of osteogenesis-related proteins, including BMP-2, p-ERK, Runx2 and OCN. Results Low-intensity mechanical vibration enhanced the osteogenesis related protein expression in OVX rats (P<0.01). With the extension of vibration duration, the osteogenesis related proteins BMP-2、p-ERK、Runx2 and OCN in V12 group were increased by 22.61% (P<0.05), 27.96% (P<0.01), 25.85% (P<0.01), 27.05% (P<0.01), respectively, as compared with V8 group. But for the control groups, no significant differences were found in expression level of osteogenesis-related proteins. Conclusions The low intensity mechanical vibration could elevate expression level of osteogenesis-related proteins, and the osteogenesis was enhanced with the extension of vibration duration.

OBJECTIVETo provide basic and direction for nosocomial infection prevention and control through evaluation the distribution of nosocomial infection pathogens and understand current situation of pathogens among general hospital in China.

METHODSArticles were searched and collected from CBM, CNKI,VIP database and Wanfang database published between creating database to March. 2013 about investigation of nosocomial infection. Those literatures were screened and extracted according to the inclusion and exclusion criteria by two reviewers independently. The analysis of pathogens distribution was performed by using comprehensive Meta analysis software and stratified by factor as year, hospital level and region of the study. The distribution rate of different pathogens were merged according to statistical tests for the heterogeneity test.

RESULTSThe 345 trials were included. The results show 1)the pooled distribution rates of common pathogens in 1987-2000 were as follows:18.6% (95% CI:13.7%-24.9%), 18.1% (95% CI:15.4%-21.0%), 14.8% (95% CI: 12.2%-17.9%), 5.2% (95%CI:4.1%-6.6%) for Fungus, Staphylococcus, Pseudomonas, and Klebsiella respectively;the pooled rates of common pathogens in 2001-2012 were as follows:17.6% (95% CI: 16.4%-18.8%), 15.0% (95% CI:14.2%-15.8%), 13.9% (95% CI:13.1%-14.7%), 10.4% (95% CI: 9.9%-11.0%)for Fungus, Staphylococcus, Pseudomonas, and Klebsiella respectively. 2)The pooled distribution rates of pathogens in second and below grade hospital were 3.2% (95%CI:0.3%-29.9%), 4.7% (95% CI:3.4%-6.3%), 7.2% (95% CI:1.7%-26.1%)for Mycoplasma, Shigella and Alkaligenes respectively;the pooled distribution rates of pathogens in third grade hospital were 1.1% (95% CI: 0.1%-15.4%), 1.8% (95%CI:0.6%-5.1%), 4.3% (95%CI:2.3%-8.0%)for Mycoplasma, Shigella and Alkaligenes respectively. 3)The pooled rate of Mycoplasma for Yangtze River Economic Area was 14.3% (95%CI:2.0%-58.1%)and for Southwest Economic Area was 0.3% (95%CI:0.1%-1.1%). The pooled rate of Corynebacterium for Yangtze River Economic Area was 0.4% (95%CI:0.1%-1.4%)and for Southeast Economic Area was 9.5% (95% CI:2.4%-31.1%). The pooled rate of Haemophilus for Northern Economic Area was 0.5% (95%CI:0.2%-0.9%)and for Southeast Economic Area was 9.2% (95% CI:7.3%-11.6%). The pooled rate of Salmonella for Yangtze River Economic Area was 6.3% (95% CI:4.6%-8.6% ) and for Southeast Economic Area was 0.4% (95% CI:0.1%-3.0% ).

CONCLUSIONThe common nosocomial infection pathogens were Fungus, Staphylococcus, Pseudomonas and Escherichia among general hospitals in China. A remarkable note is that Klebsiella was increased significantly in recent years and becomes one of the most common pathogens. There were differences in the distribution rate of nosocomial infection pathogens among general hospitals between levels and regions in China.

China ; epidemiology ; Cross Infection ; epidemiology ; microbiology ; Hospitals, General ; Humans