OBJECTIVETo study the diagnostic value of diffusion tensor imaging (DTI) in cervical spondylotic myelopathy.

METHODSTwenty healthy volunteers and fifty patients with cervical spondylotic myelopathy underwent DTI in the Affiliated Hospital of Medical College of Ningbo University from January 2014 to April 2015. Healthy volunteers served as controls. Fifty patients were divided into three groups (group A , B, C) according to cervical MRI scan standard. Group A (17 cases) had only the dura mater spinalis compressed; Group B (23 cases) showed the cervical spinal cord compressed, but no high signal in it; Group C (10 cases) had the cervical spinal cord compressed with high signal in the same level. The average apparent diffusion coefficients(ADC) and fractional anisotropy (FA)values in these examinee were analyzed and all subjects were performed fiber tracking.

RESULTSThere was no statistically significant differences in ADC and FA values in C2/C3, C3/C4, C4/C5, C5/C6, C6/C7 of control group (P>0.05). The average ADC and FA values in control group were (0.875 +/- 0.096) x10(3) mm2/s and 0.720 +/- 0.051, respectively; compared with group A,there was no statistically significant difference; compared with group B and C, there was significant difference; comparison among group A, B, C, there was significant differences.

CONCLUSIONDTI can early and accurately quantify the changes of microstructure in cervical spondylotic myelopathy. Fiber tracking can show the damage range of spinal cord lesions.

Adult ; Case-Control Studies ; Cervical Vertebrae ; diagnostic imaging ; Diffusion Tensor Imaging ; Female ; Humans ; Magnetic Resonance Imaging ; Male ; Middle Aged ; Radiography ; Spinal Cord Diseases ; diagnostic imaging ; surgery ; Spondylosis ; diagnostic imaging ; Young Adult

OBJECTIVETo observe the correlation relationship between acupuncture at Dicang (ST 4), Hegu (LI 4) and Houxi (SI 3) on the affected side of peripheral facial paralysis patients and activated areas in brain functional areas and central regulation mechanism of acupuncture at Hegu (LI 4) treatment.

METHODSEighteen cases with left peripheral facial paralysis were randomly divided into a Hegu group, a Dicang group and a Houxi group, 6 cases in each group. They were treated with electroacupuncture at left Dicang (ST 4), Hegu (LI 4) and Houxi (SI 3), respectively, and were examined with fMRI covering the whole brain at the same time. The fMRI data was analyzed by SPM software.

RESULTSIt was found that the left precentral gyrus area and the left postcentral gyrus area were activated when electroacupuncture at left Hegu (LI 4), and the right precentral gyrus area and the bilateral postcentral gyrus area were activated when electroacupuncture at left Dicang (ST 4), and there was no activated area at precentral gyrus area and post central gyrus area when electroacupuncture at left Houxi (SI 3).

CONCLUSIONThe sensory importation information from Hegu (LI 4) and Dicang (ST 4) can converge and coincide in the brain and may influence each other.

Acupuncture Points ; Acupuncture Therapy ; Adult ; Aged ; Aged, 80 and over ; Brain ; diagnostic imaging ; physiopathology ; Facial Paralysis ; diagnostic imaging ; physiopathology ; therapy ; Female ; Human Body ; Humans ; Magnetic Resonance Imaging ; Male ; Middle Aged ; Radiography ; Young Adult

OBJECTIVETo investigate the antidepressant components of Polygala tenuifolia.

METHODThe chromatographic method was used to isolate and purify the chemical constituents, their structures were identified by spectral analysis, MTT method was applied to investigate their cytotoxic activities.

RESULTNine compounds were isolated from the roots of P. tenuifolia. Their structures were identified as sibiricose A, (1), sibiricose A5 (2), tenuifoliside A (3) and 3', 6-disinapoyl sucrose (4), sibiricose A6 (5), 3, 4, 5-trimethoxycinnamate (6), polygalaxanthone III (7), tenuifolioses A (8), tenuifolioses H (9) and some compounds' activities to PC12 were observed.

CONCLUSIONCompound 1 was isolated from this plant for the first time. Compounds 2,3 could protect PC12 cells damage induced by P. tenuifolia.

Animals ; Antidepressive Agents ; chemistry ; isolation & purification ; pharmacology ; Esters ; chemistry ; isolation & purification ; pharmacology ; Mice ; PC12 Cells ; Plant Roots ; chemistry ; Polygala ; chemistry ; Rats ; Sucrose ; chemistry

OBJECTIVETo explore CT and MRI manifestations of the axial area peripheral primitive neuroectodermal tumors (pPNETs) in order to improve the knowledge of this disease.

METHODSThe clinical data of 10 patients with pPNETs underwent pathologically confirmed were retrospectively analyzed from October 2008 to May 2014. There were 7 males and 3 females, aged from 8 to 49 years old with median of 23.6 years. The preoperative multi-slice spiral CT scan was completed in 3 cases, plain CT scan and enhancement in 4 cases; MRI and enhancement scanning in 5 cases; and among them, 2 cases underwent both MRI and CT scan.

RESULTSIn-bone type was found 6 cases and out-bone type was found 4 cases. Three cases occurred in sacral vertebrae, 2 cases in lumbar vertebrae, 1 case in cervical vertebrae, 1 case in cervical spinal canal, 1 case in coccyx, 1 case in the right iliac bone, 1 case in presacral space. Cross sectional the smallest tumor maximum level was 1.1 cmx 1.2 cm in size, the biggest tumor was 8.0 cm x 9.2 cm, the median size was 4.4 cm x 5.7 cm, of them, the tumor of maximal diameter larger than 5 cm had 6 cases. Except 2 cases-without destruction of bone, the other 5 cases with osteolytic destruction, 2 cases with calcification, 1 case with mixed. Equidensite was main in CT scan, 1 case with uniform density, other 6 cases with uneven density,in which 3 cases with "floating ice" change; 1 case with moderate strengthening, other 3 cases with obviously strengthening, 2 cases with multiple small blood vessels in enhancement scanning. MRI of 5 cases showed the signal of isointensity on T1WI, the slightly high signal on T2WI and the signal was not uniform; after enhancement scan, the signal of 5 cases obviously enhanced. Two patients complicated with vertebral compression fractures, no periosteal reaction was found in all patients, and no the destruction of intervertebral disk was found in 5 patients of MRI scan.

CONCLUSIONThe axial area pPNETs is common among children and the youth, and the mass often is huge. The mass of in-bone type often envelopes the vertebral body, and main located on prevertebral space, all associated with bone destruction, osteolytic destruction is common, and primary vertebral bodies also is common, attachment primary or involvement is few found, it can involve the spinal canal and anterior wall of spinal canal is common, some cases complicate with multiple newly born small vessels. The mass of out-hone type in deep soft tissue is common, minority primary spinal canal, many complicated with vertebral bone destruction, osteolytic destruction was main. The intervertebral disk was not invaded and intervertebral space has not stenosis. CT scan offer complicate with "floating ice" sign, and in-bone type is common. Isointensity is main on MRI TlWI and slightly longer signal is main on MRI T2WI, strengthening signal is obvious.

Adolescent ; Adult ; Child ; Cross-Sectional Studies ; Diagnosis, Differential ; Female ; Humans ; Magnetic Resonance Imaging ; Male ; Middle Aged ; Neuroectodermal Tumors, Primitive, Peripheral ; diagnosis ; diagnostic imaging ; Radionuclide Imaging ; Tomography, X-Ray Computed ; Young Adult

OBJECTIVETo study the effects of kaixinsan on behavior and expression of p-CREB in hippocampus of the chronic stress rats.

METHODThe male Wistar rats which gained the similar scores by Open-field test were selected, then the depression model rat was produced by separation and chronic unpredictable mild stress. Open-field test was performed to detect the behavior of rats and immunohistochemistry was used to observe the changes of p-CREB expression in hippocampus.

RESULTOn the 22nd day, the body weight and sacchar-intake of the depression model rats were all lower than those of the normal rats and the body weight and sacchar-intake of the rats treated by drugs were higher compared with model rats (P < 0.01). The depressive behavior in kaixinsan 4 g x kg(-1) group was significantly improved compared with the model group, the crossing scores and rearing scores were all increased (P < 0.01) and the expression of p-CREB in CA1, CA3 and DG in hippocampus was higher than that in the model group (P < 0.05 and P < 0.01).

CONCLUSIONKaixinsan might improve depressive behavior by increasing expression of p-CREB in CA1, CA3 and DG in hippocampus of the chronic stress rats.

Animals ; Antidepressive Agents ; pharmacology ; Behavior, Animal ; drug effects ; Cyclic AMP Response Element-Binding Protein ; metabolism ; Depression ; etiology ; physiopathology ; Drug Combinations ; Drugs, Chinese Herbal ; isolation & purification ; pharmacology ; Hippocampus ; metabolism ; Male ; Plants, Medicinal ; chemistry ; Random Allocation ; Rats ; Rats, Wistar ; Stress, Psychological ; complications

This study was aimed to investigate the cytotoxic effect of the Naja Naja Actra Venom Component (NNAVC) combined with activated immune cells on human acute myeloblastic leukemia line KG1a cells. The cytotoxic effects of NNAVC at different concentrations on KG1a cells were measured by CCK-8 method. LDH releasing assay was used to detect the cytotoxic effects of activated immune cells, NNAVC combined with activated immune cells on KG1a cells and the sensitivity of KG1a treated with NNAVC to activated immune cells. The results showed that the inhibitory rate of NNAVC on KG1a cells increased with the concentration enhancement, the cytotoxicity of activated immune cells at the different effector to target (E:T) ratios(6.25:1, 12.5:1, 25:1) on KG1a cells were 12.30%, 24.85% and 52.26%. The cytotoxicity of NNAVC combined with activated immune cells at the different E:T cell ratios (10:1, 20: 1) on KG1a cells were 56.21% and 85.59%, which were higher than that of NNAVC or activated immune cells alone. The cytotoxicity of activated immune cells at the E: T cell ratio of 10:1 on KG1a cells treated with NNAVC at different concentrations were 25.65%, 31.33%, 28.63% and 16.78%, respectively, and that at the E:T cell ratio of 20: 1 were 40.62%, 44.70%, 44.62% and 40.72%. It is concluded that:both of NNAVC and activated immune cells have lethal effect on KG1a cells, and the combination of NNAVC and activated immune cells can strengthen their effect on KG1a.
Animals ; Cell Line, Tumor ; drug effects ; Cytotoxicity, Immunologic ; Elapidae ; Humans ; Immunocompetence ; Leukemia, Myeloid, Acute ; immunology ; pathology ; Venoms ; pharmacology

OBJECTIVETo investigate the quantity, subset of dendritic cells (DC) and their costimulatory molecule expression in peripheral blood (PB) of the patients with myelodysplastic syndromes (MDS).

METHODSTotal DC (Lin1(+) HLA-DR(+)), myeloid DC (mDC) (Lin1(-) HLA-DR(+) CD11c(+)) and plasma DC (pDC) (Lin1(-) HLA-DR(+) CD123(+)) in fresh PB samples of 38 MDS patients and 19 normal controls were assayed by flow cytometry with the monoclonal antibodies. The expressions of costimulatory molecules CD80, CD86 and CD40 on these DCs were also assayed in the same way.

RESULTSThe number of total DC in PB of low-risk and high-risk MDS patients was significantly higher than that in normal controls [(33.7 +/- 7.0) x 10(6)/L, (56.3 +/- 29.0) x 10(6)/L vs (12.1 +/- 1.4) x 10(6)/L, respectively] (P < 0.05), that of mDC in PB of low-risk and high-risk MDS patients was higher than that of normal controls too [(16.7 +/- 6.3) x 10(6)/L, (28.7 +/- 17.6) x 10(6)/L vs (5.5 +/- 0.9) x 10(6)/L] (P < 0.05), but pDC in low-risk and high-risk MDS patients was not significantly higher than that in normal controls (P > 0.05). The percentage of total DC in PB mononuclear cells (PBMNC) of low-risk and high-risk MDS patients [(2.37 +/- 0.53)% and (3.58 +/- 1.39)% respectively and that of mDC (0.90 +/- 0.35)%, (1.51 +/- 0.70)% respectively] were higher than that of normal controls [(0.68 +/- 0.08)%, and (0.32 +/- 0.05)% respectively] (P < 0.05), but that of pDC in MDS cases was not higher than that of normal controls (P > 0.05). The expressions of CD80 and CD86 between MDS patients and normal controls had significant difference (P < 0.05).

CONCLUSIONSTotal DC and mDC were increased significantly in MDS, but pDC did not. The costimulatory molecules (CD80 and CD86) except CD40 expressed higher on the DC of MDS patients. It suggested that the inflammatory injury related APC increased in MDS, but the antitumour immunity related APC did not . What found here might be one of the mechanisms involved in the pathogenesis of MDS.

Adolescent ; Adult ; Aged ; B7-1 Antigen ; metabolism ; B7-2 Antigen ; metabolism ; CD40 Antigens ; metabolism ; Dendritic Cells ; immunology ; metabolism ; pathology ; Female ; Humans ; Male ; Middle Aged ; Myelodysplastic Syndromes ; immunology ; metabolism ; pathology

OBJECTIVETo investigate the southern region of Zhejiang hepatitis E virus (HEV) infection.

METHODSA cluster sampling strategy was used to sample all blood donors from February to October in 2008 in Wenzhou blood center. Their blood was tested for IgG and IgM antibody against HEV. Reverse transcriptase-polymerase chain reaction(RT-PCR) and sequencing were applied to detect its genotype and sequence homology in HEV IgM-positive specimen.

RESULTSThe prevalence of anti-HEV IgG in 3044 cases of blood donors was 33.28%. IgG increased with age. There are certain increase in positive rates between the 20-year-old group and over 40 years of age group from 21.16% to 50.36%. The positive rate of IgM was 0.92%. The ratio of infection among different age group was the highest in the age range from 31 to 40 years and up to 1.90%. IgG and IgM through their negative and positive analysis of samples found in their group with donors age, sex and blood type does not significantly related to each other. Nucleic acids were found in three cases through PCR amplification in all 28 cases of HEV IgM positive samples. The total positive rate was one-thousandth, of which two cases for gene 4, 1 cases of infection for gene 1.

CONCLUSIONThe results indicate that there was a certain percentage of HEV virus in voluntary blood donors in south Zhejiang.

Adolescent ; Adult ; Blood Donors ; China ; epidemiology ; Female ; Genotype ; Hepatitis Antibodies ; blood ; Hepatitis E ; blood ; epidemiology ; virology ; Hepatitis E virus ; classification ; genetics ; immunology ; isolation & purification ; Humans ; Immunoglobulin G ; blood ; Immunoglobulin M ; blood ; Male ; Middle Aged ; Phylogeny ; Young Adult

OBJECTIVETo study the neoplasm with perivascular epithelioid cell differentiation (PEComa) with respect to their morphologic, immunohistochemical and clinical phenotypes.

METHODSThree PEComas were included in this study, one located at the left uterine horn, and two presented as a mass in the uterine corpus. The tumors were examined by histopathology and immunohistochemistry.

RESULTSThe lesions were composed of spindle, blunt epithelioid cells, with foci of, or scattered, cells showing adipose differentiation in two cases. The myomelanocytic differentiation was demonstrated, proving the diagnosis as PEComa. Mild nuclear atypia and focal necrosis was observed in one lesion, and the rest two showed malignant morphologic phenotypes including moderate nuclear atypia and coagulative necrosis. The mitotic and Ki67-labelling indices ranged from 0.5/10 HPF to 14/10 HPF and 0.6% to 7.0%, respectively. All of the three patients remain alive. Malignant nature of the two lesions with worrisome morphology was confirmed by occurrence of metastases after hysterectomy.

CONCLUSIONPEComa is a rare tumor, occurring preferentially in the uterus. It is regarded as a tumor with uncertain malignant potential, but a minority of them shows malignant clinical behaviors. Some pathologic parameters including large tumor size, sheet-like necrosis, marked nuclear atypia, elevated mitotic index (> or = 10/10 HPF), aberrant mitotic figure and vascular invasion may help to establish a diagnosis of malignant PEComa.

Adult ; Antigens, Neoplasm ; metabolism ; Biomarkers, Tumor ; Desmin ; metabolism ; Epithelioid Cells ; pathology ; Female ; Follow-Up Studies ; Humans ; Hysterectomy ; methods ; Immunohistochemistry ; Ki-67 Antigen ; metabolism ; Lung Neoplasms ; secondary ; Melanoma-Specific Antigens ; Middle Aged ; Mitotic Index ; Neoplasm Proteins ; metabolism ; Perivascular Epithelioid Cell Neoplasms ; metabolism ; pathology ; secondary ; surgery ; Uterine Neoplasms ; metabolism ; pathology ; surgery ; Young Adult

OBJECTIVETo investigate the early diagnosis and treatment for trauma around the knee with popliteal vascular injury.

METHODSA retrospective analysis was employed to analyze the clinical data from 15 patients (9 males and 6 females were with a mean age of 39.2 years old,ranging from 26 to 62 years old) with fracture or dislocation around the knee with popliteal vascular injury from January 2007 to January 2013. Combined with clinical symptoms and signs, oxygen saturation monitors, color ultrasound, DSA angiography and interventional surgery were used to determine the vascular injury. The knee fracture and dislocation were fixed with hybrid external fixation and plate-screw fixation, respectively. Then, the blood circulation was reconstructed by thrombectomy, repair and autologous vein graft for individual injured vascular. The average total operation time, average hospitalization days, predictive salvage index (PSI), average blood transfusion amount, average medical expenses and infection cases were recorded to determine the effect of early diagnosis and treatment.

RESULTSThere was one patient with death, 8 patients with amputation, and 6 patients with successful repair surgery for popliteal artery, anterior tibial and posterior tibial arteries. These six patients with surviving limbs were followed up for an average of 28.3 months (ranged, 12 to 60 months). Among the 6 successful patients, the joint function of 4 patients was good and excellent.

CONCLUSIONThe trauma around the knee with popliteal vascular injury is characterized by complex and serious injury, easy misdiagnosis and loss diagnosis, poor prognosis and high risk of amputation. The early diagnosis of trauma around the knee with popliteal vascular injury should depend on the mechanism of trauma, local anatomical characteristics of injury site, clinical presentations and appropriate auxiliary examinations. The appropriate indications for limb salvage and amputation should be used to achieve more effective clinical results.

Adult ; Early Diagnosis ; Female ; Humans ; Knee Injuries ; diagnosis ; surgery ; Male ; Middle Aged ; Popliteal Artery ; injuries ; surgery ; Retrospective Studies