The perineurial cells of the small nerve branch of the normal human abdominal wall are observed with electron microscope. The fibrous long-spacing bodies (FLS) are found within the interstitial substance of the endoneurium. 1. 2-5 layers of the perineurial cells surround the nerve fasciculus. The perineurial cells are squamous in shape and the cytoplasm contains microfilaments and pinocytotic vesicles. Each perineurial cell has an obvious basement membrane on its basal surface but the fibroblasts, whatever situated in the endoneurium or on the outer surface of the perineurium, has no basement membrane. Numerous desmosome and some gap junctions between the close attached perineurial cells are demostrated. The collagen fibrils between perineurial cells can be often shown. FLS bodies and collagen fibrils about 45 nm in diameter in the interstitial substance of endoneurium inside perineurial cells are demonstrated. In the connective tissue surrounding the outside of perineurial cells, the collagen fibrils of 80 nm in diameter can be seen, but no FLS bodies present there. 2. FLS bodies in the endoneurial matrix can be demostrated. Most of them closely associated with the basement membrane of the Schwann cells surrounding the unmyelinated nerves but no FLS bodies are found associate with those of the myelinated nerves. A few FLS bodies do not relate to basement membrane and they are invested only with the collagen fibrils. In the longitudinal sections, most of FLS bodies are in spindle shape of various sizes, their longitudinal axes parallel to that of the adjoining collagen fibrils. Sometimes the FLS bodies continue with the collagen fibrils are found. Occasionally, FLS body like a bridge locate between two Schwann cells and its dark bands continue to the basement membrane of the Schwann cells. Two or three FLS bodies may fuse together but their cross bands do not registered at the same level. In the oblique sections, FLS bodies are nearly rectangular in shape, with the cross bands shown, and their appearance do not show greaty difference from those in longitudinal sections. The periodicity of FLS bodies is about 133nm in length; the dark band in it is about 53 nm, which is made of the dense granular substance; the light band is about 80 nm, which is made of a network with approximated parallel microfilaments. There are no further crossstriated structures within the periods. Some problems, such as the role of the perineurial cells, the relationship of FLS bodies with basement membrane, are briefly discussed.

Objective Detected Her-2/neu, matrix metalloproteinases-2 (MMP-2) and Leptin in stomach cancer serum and tissue, discussed their roles in occurance and development of gastric cancer. Methods Detected the ex-pression of Her-2/neu, MMP-2 and Leptin in serum by ELISA, and detected the expression of Her-2/neu, MMP-2 and Leptin in stomach cancer tissue by IHC. Results The positive rates of Her-2/neu, MMP-2, Leptin in gas-tric cancer serum were higher than the positive rates in control group ( P<0.05 ) . The positive rates of Her-2/neu, MMP-2, Leptin in gastric cancer tissues were higher than the positive rates in adjacent tissues (P<0.05 ). The positive expressions of two tests had consistency. In tissues, the positive expression rates of Her-2/neu,MMP-2 and Leptin were correlated with the depth of invasion,lymph node metastasis, clinical stage(P<0.05). Their ex-pression was not correlated with sex, age, size, site of tumor and the degree of differentiation. In serum, the posi-tive expression of Her-2/neu was correlated with the depth of invasion, lymph node metastasis, clinical stage( P<0.05 ) . The positive expression of MMP-2 was correlated with lymph node metastasis ( P<0.05 ) . The positive ex-pression of Leptin had no significant correlation with pathological features. Conclusion Her-2/neu,MMP-2 and Leptin promote the occurrence, development and transfer process of gastric cancer. It can be used for clinical diag-nosis, guide the targeted therapy and provide scientific and reasonable reference for gastric cancer prognosis.

Atrial Flutter ; diagnosis ; etiology ; therapy ; Electrocardiography ; Female ; Humans ; Infant, Newborn ; Infant, Premature ; Treatment Outcome

Objective To investigate the effect of surgical intervention combined with steroid therapy on infantile hepatitis(INS) with persistent jaundice.Methods Twenty-two patients (19 males,3 females,aged 2-6 months) with persistent jaundice(therapy group) were admitted into hospital in the period of Jan.2007-Dec.2008.The patients were performed with surgical intervention after they were confirmed with diagnosis as INS.Then,sodium chloride,gentamicin and Dexamethasone were used to irrigate the biliary tract during and after the operation for 14 days.Three days after operation,20 mg,15 mg,10 mg,5 mg of methylprednisolone were administered intravenously to the patients every 3 days,followed with 4 mg/(kg?d) prednisone by oral for 2-3 months.The 17 cases of INS with persistent jaundice were treated with medicine as control(control group).By following-up,the jaundice free and 2 years survival rate of 2 groups were compared by counting the cases of jaundice free and recording the survival time.Results Two cases of 22 patients performed with surgical intervention were diagnosed as biliary atresia and others were INS,90.0% patients were free of jaundice in surgical intervention combined with steroid therapy group,which was higher than that in control group(52.9%,P

Objective:To approach the effect of Naotangfang extracts on expression of vascular endothelial growth factor(VEGF) after focal cerebral infarct in rats. Methods:30 Sprague-Dawley(SD) rats were randomly divided into 6 groups:sham operation group,model group,Naotaifang extract groups(low,middle,and high dosage) ,and Naofukang group. Some indexes were detected such as neurological scores,VEGF mRNA expression by RT-PCR,and the number of VEGF positive cells by immunohistochemical methods. Results:The symptoms in nervous function were improved in the Admin. groups,especially in the Naotaifang middle dosage group. The number of VEGF positive cells and VEGF PCR production in Naotaifng middle dosage group was higher than that in the model group. Conclusion:Naotaifang has neuroprotective effect against focal cerebral ischemic injury by improving the expression of VEGF.

Objective: Develop a kind of portable negative pressure calibrator by the design and implement of method. Methods:By the working principle of negative pressure sensor and gas flow sensor, the negative pressure aspirator realizes the calibration function and stability of the monitoring function of the pressure and flow. Results:Stating from the design concept, this portable negative pressure can satisfy the requirement of the quality control and test work. Conclusion:Guarantee the accuracy and efficiency in the clinical first aid and field battle when using attractor. This avoids attractor of iatrogenic injury accident caused by negative pressure fall off.