Objective To explore a better method to repair cervical cicatricle contracture deformity.Methods The cervicai cicatrical contraction deformity was repaird by the cervico-shoulder island skin flap with blood supply crossing and abundant anastomotic branches of the neck-shoulder blood vessels. After removing the cervical scar, the flaps were designed according to the size of the wound to be repaired, and the clinical anatomy of crossing and abundant anastomotic branches of the neck-shoulder blood vessels. The secondary wound of donor site was closed directly if the donor region was small, or closed by skin graft. Results Sixteen patients in this clinic were operated with this method, and venous return dysfunction occurred in 1 case, but blood circulation was improved after treatment. All the flaps survived with good appearance and texture. The extensive flap was created and transferred to the anterior neck by one stage without pre-expansion which met some patients'requirement of repairing cervical cicatricle contracture deformity. Conclusion The cervico-shoulder island skin flap, with abundant blood supply, is a new method to repair cervical cicatricle contracture deformity.

Objective To prepare a glycerol reference material.Methods The material was prepared and characterized according to the primary standard substance technological specification(JJG 1006- 1994).Glycerol was dissolved in water containing 0.5% sodium azide and dispersed to glass ampules.The homogeneity and stability of this material were tested with an HPLC method.Glycerol concentration was determined by a titration method as specified in the Pharmacopoeia of China.Results The three time measuring result of glycerol reference material was 1.297 5?0.014 3,1.302 0?0.008 9,1.313 7? 0.007 8,respectively.Statistical analysis showed that this material was homogeneous (F=1.462,P=0.166) .It was stable for at least 4 years at 4℃.The assigned reference value was 0.103 6 g/g and the expanded uncertainty was 0.000 4 g/g.Conclusions This material meet the technical requirements of national primary standard reference material.It is approved as the Certified Reference Material (GBW 09149) by General Administration of Quality Supervision,Inspection,Quarantine of the People's Republic of China in May,2006.

In order to further improve the curative effect of the herb-participated moxibustion on umbilicus, we collected a wide range of literature on herb-participated moxibustion on umbilicus and then systematically arranged them to analyze and summarize the technology and operating methods of herb-participated moxibustion on umbilicus. We also briefly discussed issues on application of medicine, locust tree skin and ginger, the method of kneading dough for medical uses, and the appropriate size of moxa cone and its using frequency in order to form clear concepts and standardized operations to provide theories and operational basis for the clinical application of modern herb-participated moxibustion on umbilicus.
China ; History, Ancient ; Humans ; Medicine in Literature ; Medicine, Chinese Traditional ; history ; Moxibustion ; history ; instrumentation ; methods ; Plants, Medicinal ; chemistry ; Umbilicus ; physiopathology

Child ; Coronary Aneurysm ; diagnosis ; etiology ; surgery ; Humans ; Male ; Mucocutaneous Lymph Node Syndrome ; complications

OBJECTIVETo study the effect of electro-acupuncture (EA) at points along Foot Yangming Channel on metabolite of ulcerative colitis (UC) rats' cerebral cortex and to identify key metabolites by referring to Pi/Wei-brain related theory in Chinese medicine (CM).

METHODSThe UC rat model was set up by dextran sulfate sodium (DSS) method. Male SD rats were randomly divided into the model group and the EA group, 13 in each group. Another 13 rats were recruited as the blank control group. Rats in the blank control group and the model group received no EA. EA was performed at Zusanli (ST36), Shangjuxu (ST37), and Tianshu (ST25) for 5 days by using disperse-dense wave. Then all rats were sacrificed. Their recto-colon and the ileocecal junction were pathomorphologically observed by light microscope and transmission electron microscope (TEM). Cerebral cortexes were extracted. Water-soluble and lipid-soluble brain tissue metabolites were respectively extracted for metabolic research using 1H nuclear magnetic resonance (1H-NMR).

RESULTSEA could obviously improve the general condition of UC model rats, decrease the value of DAI, reduce the infiltration of inflammatory cells in the intestinal tract, stabilize structures such as mitochondria, endoplasmic reticulum and so on (P <0.05). 1HNMR analysis showed that in the model group, contents of glutamic acid, cholesterol, very low density lipoproein (VLDL) in the pallium obviously decreased, while alanine and low density lipoprotein (LDL) significantly increased. After EA, levels of lactic acid, glutamic acid, total cholesterol (TC), and VLDL all increased, and levels of alanine and LDL decreased. All indices were approximate to those of the blank control group.

CONCLUSIONEA at Foot Yangming channel was found to have some effect on metabolites in the brain tissue of UC model rats, which had specific metabonomic material basis and mechanism based on the Pi/Wei-brain related theory.

Acupuncture Points ; Animals ; Cerebral Cortex ; metabolism ; Colitis, Ulcerative ; Electroacupuncture ; Lipids ; Male ; Rats, Sprague-Dawley

Objective To investigate the liver injury and pathological changes of rat and patients with Clonorchis sinensis(C, sinensis) infection, and to clarify the role of apoptosis in the injury induced by C. sinensis.Methods Wistar rats were divided into two group: 60 in infection group and 20 in control. The rats in infection group were infected with C. sinensis via oral feeding encysted cercaria;rats in control group were fed with normal saline. The rats were sacrificed 4, 6, 8 and 12 weeks after infection, respectively. Liver tissue specimens of the patients infected with C. sinensis were collected. The pathological changes of liver tissue were observed by light microscopy and the apoptofic rate of hepatocyte was detected by terminal deoxynucleotidyl transferase dUTP nick end labeling(TUNEL) assay. Results Parasites and eggs could he seen around the bile duct, and the duct was associated with mucosa and adenoma papillary hyperplasia, wall thickening, inflammatory cell infiltration, a small amount of fibrous tissue hyperplasia, and periportal liver cells surrounded by a number of nuclear condensation, all these changes meant morphological characteristics of apoptosis. Apoptotic rates of liver cells in infection group 4, 6,8 and 12 weeks after infection were (7.15 ± 1.50)%,(11.61 ± 3.09)%,(13.21 ± 3.47)% and (11.26 ± 4.06)%,respectively, which was significantly higher than that in control group [(2.57 ± 0.72)%, (3.17 + 0.77)%, (3.67 ±0.96)% and (2.84 ± 0.87)%, t values were 4.45, 5.49, 5.95 and 4.74, respectively, all P < 0.01]. Conclusions These findings indicate that C, sinensis can stimulate both hepatoeytic apoptosis and degeneration which may he related to clinical manifestations and liver lesions in patients with clonorchiasis.

Objective To investigate the effect of magnetron sputtered ZrN on the bonding strength between a low-fusing porcelain (Ti/Vita titankeramik system) and commercially pure cast titanium.Methods Sixteen specimens were randomly assigned to test group and control group ( n = 8). The control group received no surface treated. Magnetron sputtered ZrN film was deposited on the surface of specimens in the test group. Then the sixteen titanium-porcelain specimens were prepared in a rectangular shape and went through three-point bending test on a universal test machine. The bond strength of Ti/porcelain was recorded. The phase composition of the specimens was analyzed using X-ray diffraction (XRD). The interface at titanium and porcelain and the titanium sudace after debonding were observed with a scanning electron microscopy (SEM) and analyzed using energy depressive spectrum (EDS). Results New phase of ZrN was found with XRD in the test group. Statistical analysis showed higher bond strength following ZrN surface treatment in the test group [ (45. 991 ± 0. 648 ) MPa] than that in the control group [ (29. 483 ±1.007) MPa] (P =0.000). Bonded ceramic could be observed in test group, the amount of bonded ceramic was more than that in the control group. No obvious bonded ceramic in control group was found.Conclusions Magnetron sputtered ZrN can improve bond strength of Ti/Vita titankeramik system significantly.

OBJECTIVETo evaluate the effects of antagonistic action of epigallocatechin-3-gallate (EGCG) on microcystin LR (MC-LR) induced oxidative damage on mice and the expression of cytochrome P450 2E1 (CYP2E1) which was one of phase Iota detoxification enzymes.

METHODSA total of 24 specific pathogen free (SPF) male BALB/c mice were randomly divided into four groups, including control group, MC-LR group, low concentration EGCG group, and high concentration EGCG group. Mice were sacrificed on the 15th day, body weight, and the relative organ weight, liver antioxidant enzyme level and lipid peroxidation product, liver histopathology and CYP2E1 gene and protein expression were detected and analyzed respectively.

RESULTS(1) EGCG could antagonise the liver injury which had been damaged by MC-LR. (2) The malonaldehyde (MDA) level ((2.87 +/- 0.03) nmol/mg prot) and superoxide dismutase (SOD) level ((168.18 +/- 2.86) U/mg prot) in MC-LR group were significantly different when compared with the two EGCG treatment groups (the MDA values of the low and high concentration EGCG group were (2.37 +/- 0.05) nmol/mg prot and (1.44 +/- 0.05) nmol/mg prot, F = 906.63, P < 0.01; the SOD values were (176.55 +/- 2.98) U/mg prot and (184.89 +/- 1.53) U/mg prot, F = 32.32, P < 0.01). (3) MC-LR up-regulated the mRNA and protein expression of CYP2E1 (the mRNA values of MC-LR group and control were 1.41 +/- 0.26, 0.86 +/- 0.13, t = -4.22, P = 0.003; the protein values of MC-LR group and control were 0.24 +/- 0.03, 0.12 +/- 0.02, t = -9.21, P < 0.05). EGCG down-regulated the mRNA (the values of the low and high concentration EGCG group were 1.09 +/- 0.08, 0.99 +/- 0.09, F = 9.03, P = 0.004) and protein expression (the values of the low and high concentration EGCG group were 0.21 +/- 0.03, 0.14 +/- 0.02, F = 24.76, P < 0.05) of CYP2E1 which activated by MC-LR.

CONCLUSIONThe up-regulation of CYP2E1 which induced by MC-LR was inhibited by EGCG intervention. EGCG might antagonize the oxidation damage of hepatocytes in a certain degree.

Animals ; Catechin ; analogs & derivatives ; pharmacology ; Cytochrome P-450 CYP2E1 ; metabolism ; Hepatocytes ; drug effects ; metabolism ; Male ; Mice ; Mice, Inbred BALB C ; Microcystins ; adverse effects ; Oxidative Stress ; drug effects

This study was designed to investigate the different involvements of prostatic stromal cells from the normal transitional zone (TZ) or peripheral zone (PZ) in the carcinogenesis of prostate cancer (PCa) epithelial cells (PC-3) in vitro and in vivo co-culture models. Ultra-structures and gene expression profiles of primary cultures of human prostatic stromal cells from the normal TZ or PZ were analyzed by electron microscopy and microarray analysis. In vitro and in vivo co-culture models composed of normal TZ or PZ stromal cells and human PCa PC-3 cells were established. We assessed tumor growth and weight in the in vivo nude mice model. There are morphological and ultra-structural differences in stromal cells from TZ and PZ of the normal prostate. In all, 514 differentially expressed genes were selected by microarray analysis; 483 genes were more highly expressed in stromal cells from TZ and 31 were more highly expressed in those from PZ. Co-culture with PZ stromal cells and transforming growth factor-beta1 (TGF-beta1) increased the tumor growth of PC-3 cells in vitro and in vivo, as well as Bcl-2 expression. On the other hand, stromal cells of TZ suppressed PC-3 cell tumor growth in the mouse model. We conclude that ultra-structures and gene expression differ between the stromal cells from TZ or PZ of the normal prostate, and stroma-epithelium interactions from TZ or PZ might be responsible for the distinct zonal localization of prostate tumor formation.
Adenocarcinoma ; drug therapy ; genetics ; pathology ; Adult ; Animals ; Cell Line, Tumor ; Coculture Techniques ; Gene Expression ; drug effects ; Gene Expression Profiling ; Humans ; Male ; Mice ; Mice, Nude ; Oligonucleotide Array Sequence Analysis ; Prostate ; drug effects ; metabolism ; pathology ; Prostatic Neoplasms ; drug therapy ; genetics ; pathology ; Proto-Oncogene Proteins c-bcl-2 ; genetics ; metabolism ; RNA, Messenger ; metabolism ; Stromal Cells ; metabolism ; pathology ; Transforming Growth Factor beta ; pharmacology ; Young Adult

This study was purposed to investigate the effect of different heat stress conditions on expression level of heat shock protein gp96 in K562 cell line of chronic myeloid leukemia in order to provide experiment basis for seeking optimal heat stress condition increasing extraction amount of gp96 from K562 cells. The expression changes of gp96 in K562 cell line was detected by immunocytochemistry under 38, 40, 42, 44, 46 and 48 degrees C for 30 minutes in water, by flow cytometry under 40, 44, 48 and 52 degrees C for 30 minutes in water, by Western blot under 40, 44, 48 and 52 degrees C for 30 minutes in water. Immunocytochemistry assay showed that gp96 existed mainly in cytoplasm. The peak of gp96 expression was at 30 minutes after 48 degrees C in water. The result of flow cytometry was consistent to immunocytochemistry detection results under temperatures 40, 44, 48 and 52 degrees C (P < 0.01). Western blot showed that detection result was the same as the immunocytochemistry and flow cytometry detections. In conclusion, the expression of gp96 in K562 cell line reached peak at 30 minutes after 48 degrees C in water. This condition may be an effective preparative condition for extraction of gp96 from K562 cells.
Antigens, Neoplasm ; biosynthesis ; genetics ; Blotting, Western ; Flow Cytometry ; Heat-Shock Response ; Humans ; Immunohistochemistry ; K562 Cells ; Leukemia, Myelogenous, Chronic, BCR-ABL Positive ; metabolism ; pathology