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Objective To study the effect different concentrations of HDAC6 inhibitor tubacin on the proliferation,morphology and membrane surface ultrastructure of bone marrow mesenchymal stem cells(BMSCs).Methods Primary BMSCs were cultured.The P4 generation cells were taken for conducting the experiment.The different concentrations of tubacin were used to treat the cells fro 24 h.The cells survival rate was detected by MTT assay.The atomic force microscopy(AFM) was applied to observe the cellular morphology and surface ultramicrostructure and detect the mechanical property in different groups.Results The MTT results showed that low concentration of tubacin had the effect for promoting BMSC proliferation;the AFM results showed that compared with the control group,the height and width of BMSCs after treating by low concentration of tubacin,the membrane surface roughness was decreased and cellular hardness was increased.Conclusion Low concentration of tubacin can promote the BMSC proliferation,causes the changes of morphology and membrane surface ultramicrostructure,enhances the mechanical property and increases the cell implantation treatment efficiency.
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Objective To study the ultramicrostructure change and keartin(KRT1) expression in skin lesion of symmetrical acral keratoderma(SAK) .Methods Thirteen cases of SAK in the First Affiliated Hospital of Fujian Medical University and the outpatient department of the Dongguan Municipal Sixth People′s Hospital were selected as the study subjects .The histopathological samples were taken from the wrist site .The retinoic acid preparation or corticosteroid preparation or Chinese medicine preparation were not externally used within 2 months before taking skin lesion sample .The healthy control skin samples were the normal skin in 12 cases by plastic surgical resection .The ultramicrostructural change were observed by the transmission electron microscopy .The KRT1 expression in skin lesion of 13 cases of SAK and healthy skin tissue of 12 cases were measured by immunohistochemistry method .Results The SAK ultramicrostructures manifested by the interruption of keratinizing envelope continuity in horny layer , and remarkable aggregation of keratin filament in upper stratum spinosum and surrounding nucleus of granular layer .KRT1 was ex-pressed in the cells of SAK skin lesion and basal layer ,spinous layer ,granular layer and horny layer .The cytoplasm and cytomem-brane staining was common .The KRT1 expression in skin lesion was significantly higher than that in normal skin (t=2 .210 ,P=0 .038) .Conclusion The ultramicrostructure features of SAK skin lesion are abnormal differentiation of epidermis keratin fila-ments ,which might be related with overexpression of KRT 1 .
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Objective To explore the effects of sepsis on the ultrastructure and function of thyroid in rats.Methods This study was performed in the Animal Department of Fujian Medical University,the Key Laboratory of Fujian Provincial Cardiovascular Institute and the Electron.Microscopic Department of Fujian Medical University.Thirty-two pathogen-free male Sprague-Dawley rats weighing 180-220 g selected,and were randomly (random number) divided into control group (C group,n =8),12 hour group (n =8),24 hour group (n =8) and 36 hour group (n =8).The 12 h group,24 h group and 36 h group were established to be sepsis groups.The sepsis model was made by cecal ligation and puncture (CLP).The samples of blood and thyroid tissue of rats in 12 h group were taken 12 hours after modeling,and then the same procedure was done in the rats of 24 h group and 36 h group separately 24 hours and 36 hours after modeling.Blood serum was obtained by centrifugation to detect the thyroid function using measurement of different of kinds of hormones (T3,T4,fT3,fT4,TSH).Thyroid tissue was available to determine the expression of caspase-3,cell apoptosis and change of ultra-microstructure.Raw data were analyzed using SPSS19.0 software.Caspase-3 grey value was determined by Image J software.Thyroid hormone levels were presented as mean ± standard deviation.The differences in levels of different kinds of thyroid hormone among all the groups were determined by one-way ANOVA.TUNEL positive staining and caspase-3 expression were presented as median (P25,P75).Results Compared to the control group,the T4 decreased significantly (P＜0.05) in the 12 h group,the 24 h group and the 36 h group,both the tT3 and the fT4 decreased significantly in the 24 h group and the 36 h group (P ＜0.05),and the T3 decreased significantly in the 36 h group (P ＜ 0.05).The expression of caspase-3 in the 24 h group was higher than that in the C group (P ＜ 0.05).There was significant difference in rate of celt apoptosis in thyroid tissue among those four groups,and both the 24 h group and the 36 h group had higher rate of cell apoptosis than the C group significantly (P ＜0.05).In those sepsis groups,a series of pathological ultrastructural changes were found in thyroid follicular epithelial cells as following:the nucleus became smaller and more distinctly stained,and quite a few vacuoles were visualized in cell.Furthermore,the cell membrane was broken,and nuclei showed pyknosis.Conionclus In sepsis rats,the significant changes of different kinds of thyroid hormone in serum are similar to those found in the thyroidal illness syndrome,the expression of caspase-3 and cell apoptosis in thyroid tissue increase,and pathological change of thyroid follicular epithelial cells can be observed under electron microscopy.
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Objective To investigate the effect of acupuncture at point Neiguan on mouse myocardial hypertrophy.Methods Thirty-sixty healthy C57BL6 mice were randomized into blank, model and treatment groups, 12 rats each. In the treatment group, an acupuncture needle was inserted into point Neiguan and retained for 15 min, once daily. After nine days of treatment, the ratios of cardiac weight/tibial length were compared between the groups. Left ventricular myocardial tissues were processed by Masson trichrome staining in every group of mice. The differences in myocardial fiber arrangement and collagen fiber distribution between the groups were observed under the ordinary optical microscope in 100 times of field of vision. Sarcomere structure, myofibril arrangement, collagen fibers and mitochondria in injured myocardial tissues were observed by transmission electron microscopy. Results Heart rate increased significantly in the model group and decreased significantly in the acupuncture group compared with the blank group. Cardiac weight and the ratios of cardiac weight/tibial length increased significantly in the model and acupuncture groups compared with the blank group (P<0.01) and decreased significantly in the acupuncture group compared with the model group (P<0.01). In the model group, myocardial tissues had compensatory hypertrophy with incontinuous status, and myocardial transverse striations had severe disorder/disruption, karyopyknosis appeared and cytoplasmic eosinophilic change became obvious in few of the rats. The results were better in the acupuncture group than in the model group. In the model group, part of myofibrils had focal fusion, interstitial collagen fibers proliferated and mitochondria had swelling and compensatory increase. The results were also better in the acupuncture group than in the model group.Conclusions Acupuncture at point Neiguan can reduce the production of collagen fibers and mitochondria, improve the arrangement of sarcomere structure and delay the progression of myocardial hypertrophy.
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Objective To investigate the influences of Xuebijing injection on organs' ultra-microstructure in septic shock rats. Methods Fifteen male Sprague-Dawley (SD) rats of clean grade were selected. According to the method of random digits table, all of them were divided into three groups: sham operation group, model group and Xuebijing treated group, 5 rats being in each group. Cecal ligation and puncture (CLP) was adopted to reproduce abdominal cavity infection leading to sepsis model formation. While the rats in sham operation group just underwent abdominal median incision, abdominal exploration and closure of abdominal wall after flipping retrocecal region. In the Xuebijing treated group, within 1 hour after the operation, Xuebijing injection (4 mL/kg) was transfused through the catheter inserted in the femoral vein, and then normal saline (2 mL·kg-1·h-1) was continuously transfused until the rat being sacrificed. In the sham operation group and model group, equal volume of normal saline was given after operation. The blood pressure of all the rats was monitored continuously by a pressure device connected with a catheter inserted in the right carotid artery. The rats were observed for 12 hours, afterwards they were sacrificed, the samples of heart, lung, kidney and liver were taken, and their ultrastructural changes were observed under an electron microscope. Results The blood pressure of sham operation group was decreased a little with time extension, but within normal limits. The mean arterial pressure (MAP) of model group and Xuebijing treated group developed into a state of sepsis shock at 9 hours and 10 hours after operation respectively, and MAP were lower than 70 mmHg (1 mmHg=0.133 kPa). The MAP levels of model and Xuebijing groups at 11 hours after operation were lower significantly than those of sham operation group (mmHg:58.7±7.0, 58.7±8.3 vs. 91.0±8.2, both P0.05). The results of the observation with electron microscope:the structures of heart, lung, liver and kidney in sham operation group were basically normal;all the organs of model group appeared different degrees of structural damage. Compared with model group, the injury of heart and lung in Xuebijing treated group was milder, especially, the changes of cellular mitochondria were obvious;however, there was no significant difference in injury of kidney and liver between the model and Xuebijing treated groups. Conclusion Xuebijing injection can play a certain role in stabilizing the circulatory system in rats with septic shock, and can possibly ameliorate the heart and lung damage caused by infection and shock.
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Objective To investigate the protective effect of n-butanol extract from the roots of Potentilla anserina (NP) on hypoxic hippocampal neurons in neonatal rats.Methods Primary cultured hippocampal neurons were pretreated with different concentration of NP (0.25,0.0625,and 0.0156 mg/mL) before incubation in a low oxygen (0.1％) environment for 4 h.Cell viability was evaluated by Trypan blue staining assay.Lactate dehydrogenase (LDH) released by neurons into the medium was measured.The activity of superoxide dismutase (SOD) in cell cytosol was determined using nitroblue tetrazolium.Morphological changes and mitochondrial function were observed by transmission electron microscopy.Results Hypoxic injury could decrease the cells viability of neuron,enhance LDH release (P ＜ 0.05),decrease SOD activity,and increase mitochondrial injury.Pretreatment with NP significantly increased cell viability,decreased LDH release (P ＜ 0.05),promoted SOD activity (P ＜ 0.05),and remarkably improved cellular ultra-microstructure compared with the model group.Conclusion NP could protect the primary hippocampal neurons from hypoxic injury by attenuating mitochondrial cell death.
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Background Bulbar conjunctiva tissue appears to be thinning,elasticity declined,tension reduced and fascia atrophied in conjunctivochalasis.Histopathological examination of conjunctivochalasis shows decrease of elastic fibers and melt of collagen fibers.But there are fewer studies on the ultrastructure of conjunctiva of conjunctivochalasis up to now.Objective This study was to investigate the ultrastructure change of conjunctiva tissue in conjunctivochalasis.Methods Five loose conjunctiva samples of conjunctivochalasis and 5 normal conjunctival tissue samples were collected and ultra-microstructure changes of these samples were observed under the transmission electron microscope.Results The number of fibroblasts in conjunctivochalasis lamina was progressively decreased.The shape of fibroblasts was long and fusiform.Somatic synapse was slim.Nucleus-cytoplasm ratio was increased.Disorder,scattered and broken of the collagen fibril were seen,and some areas were dissolved or lacunae.Normal conjunctival fibroblasts were oval or polygonal,with wieners and long somatic synapse,and intercellular matrix was full of collagen fibril and dense arranged fibers.Fibroblasts in fascia of eonjunctivochalasis were linear,and collagen fibril was seriously defected.Fascia fibroblasts of normal bulbar conjunctiva were spindleshaped and bigger than conjunctivochalasis fibroblasts.There were full of collagen fibrils in intercellular matrix.Conclusions The collagen fibril is decreased and fibroblast cells are degenerated in lamina and fascia of conjunctivochalasis.
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Objective To investigate the correlations of extracellular matrix and hepatic ultramicrostructural changes with clinical manifestations in patients with mild chronic hepatitis B (CHB).Methods Patients with chronic HBV infections were enrolled and were divided into mild CHB group (n=66) and HBV carrier group (n=10).Serum samples were collected from patients, and serum HBV markers, HBV DNA load and liver fibrosis indexes were measured.All subjects received liver biopsy, and the tissue samples were observed by light microscope and electron microscope.T test and χ2 test were performed for measurement data and enumeration data, respectively.Spearman test was used for ranked data.Results The differences on ALT and AST levels between mild CHB group and HBV carrier group were significant (t=12.42, 7.06, P＜0.05), but there was no significant difference on HBV DNA load between two groups (t=0.24, P ＞ 0.05).Serum liver fibrosis indexes (hyaluronic acid, type Ⅲ collagen,type Ⅳ collagen and laminin protein) in mild CHB group were not significantly higher than those in HBV carrier group (t=0.45, 0.95, 0.76 and 1.21, P ＞0.05).In mild CHB group, there were 33 patients with ≥G2 and ≥S2, but in HBV carrier group were only 2 patients (χ2=4.17, P ＜ 0.05).Seventeen patients in mild CHB group were with S3-4, while that was not observed in HBV carrier group (χ2=4.75, P ＜0.05).In mild CHB group, hepatic ultramicrostrutural changes on fat storing cell, collagen protein and portal area were correlated with fibrosis grades, and the correlation coefficients were 0.351, 0.675 and 0.301, respectively (P=0.004, 0.000 and 0.014).Conclusion Electron microscope is of higher sensitivity than light microscope in observing hepatic ultramicrostructural changes, which is effective in evaluating the severity of mild CHB.
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ObjectiveTo observe the effects of chemotherapy on mitochondria ultrarnicrostructure and stereological characteristic of mucinous cystadenocarcinoma (MC) and serous cystadenocarcinoma (SC) and to investigate clinical significance and possible mechanism of chemotherapy on two cystadenocarcinoma.MethodsThe ultramicrostructure changes of mitochondrion were observed with electronic microscope and the stereological changes and its interrelation of volume density (Vv), surface density (Sv) and ratio of surface density(Rsv,μm-1)of mitochondria of the cells in ovarian carcinoma were studied and compared with the normal control. ResultsElectron microscope reveals that the mitochondria swelling and cristae disorganizing were seen in ovarian carcinoma.The Vv(0.072±0.059)and Sv(0.057±0.040)of MC mitochondria were decreased markedly(P =0.004 and P =0.029, respectively), while its Rsv (0.891 ±0.400) μm-1 increased obviously (P =0.015); but the Vv and Sv of mitochondria of the SC cells were increased markedly (0.267±0.12,P =0.001 and 0.122±0.057,P =0.003,respectively).After chemotherapy,cancer cells mitochondrion Sv elevated significantly (0.060±0.037, P = 0.053), showing a similar MC mitochondria of variability. Conclusion Therearedifferentcharacteristicsintheultramicrostructureandstereologicalcharacteristicinthe mitochondria of two types ovarian carcinoma. Effects of chemotherapy may be associated with the ameliorate of construction and function of ovary cells.
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BackgroundThe quest to look for seed cells is a hot spot of cornea transplant research in solving the problem of the lack of donor. Bone marrow mesenchymal stem cells(BMSCs) have been successfully induced into retinal ganglion cells(RGCs) in vivo,but the successful induction of BMSCs into corneal endothelial cells has not been reported.Objective This experiment was to study the transplantation of BMSCs on corneal endothelial surface using the splitting Descemet's membrane. MethodsFour healthy adult rhesus monkeys were divided into the experimental group ( 3 monkeys) and control group ( 1 monkey). Mesenchymal stem cells (MSCs) were isolated from bone marrow by density gradient centrifugation combined with adhering means. The cultured cells were identified by flow cytometry and its ability to differentiate was determined by allowing them to differentiate into adipocytes in vitro and labeled by 5-bromodeoxyuridine ( BrdU ) for subsequent identification. Corneal grafts of 7 mm in size with tearing of the Descemet' s membrane were prepared in the experimental group and control group. After labeling by 5-bromodeoxyuridine( BrdU ) ,cultured cells were transplanted onto the endothelial surface of cornea grafts in the experimental group, but no cultured cells were seeded in the graft of the control group. The corneal grafts were then sutured in situ, and were removed 1,2 or 3 months after operation to examine the distribution and connection between transplanted cells and their morphologic changes under the electron microscope. Results High purity MSCs were harvested by density gradient centrifugation combined with adhering method. Cultured cells reached confluency after 12 to 16 days, presenting with a spindle shape and parallel or swirling arrangement. Flow cytometry analysis showed that 94.26％ of cells were positive for CD29,7. 51％ for CD34 and 4. 02％ for CD45. Larger nuclei filled with plastosomes, golgiosomes and rough endoplasmic reticula were found on the graft under the transmission electron microscope( TEM ). After 3 weeks, MSCs were differentiated into adipocytes where Oil Red O staining resulted in an orange-red staining in the cytoplasm and blue staining in the nuclei. The transplanted cells attached loosely on the endothelial surface of the corneal graft and came in contact with each other in one month. The shape of the cells appeared as spindle-shaped and polygonal after 2 months and became tightly packed after 3 months. The positive cells retained the BrdU label and presented with brown nuclei. No endothelia cells grew in the cornea graft in the control group, with an absence of BrdU labeling. Conclusions Mesenchymal stem cells can be transplanted onto the corneal endothelial surface successfully and form a monolayer using the centrifugation method, and present with good survival and proliferation ability.
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Objective: To compare the influence of nickel-chromium alloy and gold-platinum alloy porcelain-fused-to-metal ( PFM ) on ultramicrostructure of canine gingival tissues, to survey the biological effects after PFM full crown restoration, and to provide data for selection of PFM materials. Methods; The nickel-chromium alloy and gold-platinum alloy PFM full crowns were used to repair canines in 3 healthy dogs. The microstructure of canine gingival tissue was observed through light microscope and transmission electron microscope. Apoptosis of canine gingival cells was detected by TUNEL method. Results; Under light microscope, inflammatory cell infiltration and partial bleeding were seen in the nickel-chromium alloy PFM full crown repaired canine gingival tissues. Under transmission electron microscope, large amount of cell apoptosis and neuclear condensation were observed in these tissues,and apoptotic index was 58.63% ±11. 12%. While under light microscope, inflammatory cell infiltration and partial bleeding were not seen in the gold-platinum metal PFM full crown repaired canine gingival tissues. Under transmission electron microscope, only small amount of cell apoptosis was detected in these tissues,and apoptotic index was 26. 90% ± 17. 35%. Statistical significance was found in both nickel-chromium alloy group and gold-platinum metal group compared to control group. There was also statistical significance between nickel-chromium alloy group and gold-platinum metal group in cell apoptosis numbers (P <0. 05). Cell apoptosis number in nickel-chromium alloy group was much higher than that in gold-platinum metal group. Conclusion; The negtive effects on ultramicrostructure of gingival tissue using nickel-chromium alloy PFM are more evident than using gold-platinum metal. When select PFM to repair defect teeth, it is better to select the inactive gold-platinum metal PFM as base crown.
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Objective This study was designed to investigate the importance of H2S in rats with adriamycin-induced dilated cardiomyopathy.Methods Weight-matched adult male Wistar rats were randomly divided into 5 groups as follows:(1)the ADR group(n=12)where adriamycin(2.5 mg/kg)was given once a week;(2)ADR + small-dose NaHS group(n=12)where NaHS solution [2.8 ?mol/(kg?d)] was given;(3)ADR+large-dose NaHS group(n=12)where NaHS solution [14 ?mol/(kg?d)] was given;(4)the control group(n=9)where physiological saline was administered instead of adriamycin.(5)NaHS group(n=9)where NaHS solution [14 ?mol/(kg?d)]was given.Hemodynamic and echocardiographic measurements were carried out after treatment.Histological examination was implemented at the 10th week after the rats were sacrificed.Meanwhile,H2S concentrations in serum and myocardial tissues were evaluated by modified sulfide electrode method.Results The heart function of ADR rats decreased obviously.Pathological examination demonstrated that characteristics consistentwith cardiomyopathy were found in ADR group.H2S concentrations in serum and myocardial tissues of the rats in ADR group were both significantly decreased as compared with those in the control group(both P
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[Objective] To study the microstructure of ligamentum fiavum of the early dynamic imbalanced rats.[Methods]The dynamic imbalanced rat mode was established.The samples were taken and studied by electron microscopy at 3、5、15、30、60 days after operation.[Results]A large number of fibroblasts in the ligamentum flavum were found at 3 days after the neck muscles were resected.The fibroblasts had an active metabolism,and around them the collagen fibers were markedly increased at 5 days.The number of fibroblasts was reduced,but the matrices were increased at 15 days.At 30 days,fibroblasts became slender,and fibers looked like waves.At 60 days,the number and appearance of the fibroblasts of the ligamentum fiavum were similar to that of the control group.The fibers were regularly arranged and became larger than that of the colltrol group.[Conclusion]The number of fibroblasts and the collagen fibers in the ligamentum flavum of the dynamic imbanlanced rats has a regular change after operation.
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[Objective]To study the effect of sixpetal clematis root injection(WLX)on histology,collagen phenotype and ultramicrostructurc in cartilage of osteoarthritis animal model.[Method]OA model animals were randomly divided into 3 groups:group S,group D and group K.Animals in group S received WLX and animals in group D received sterilized normal saline intramuscularly,group K was control and received nothing.After the animals were killed,cartilage specimen were obtained and sections were made and stained with HE/SOFG for Mankin score;the expression level of collagen Ⅰ and Ⅱ in matrix was tested by immunohistochemistry;change of ultramicrostructure of cartilage was observed with transmission electron microscope.[Result]Mankin score in group S was better than that in group D and K at each test period;result of IHC shows that positive stain area of collagen Ⅰ was lower in group S than that in group D and K,and positive stain area of collagen Ⅱ was higher than that in group D and K at each test period;cartilage impairment degree in group S was lower than in group D and K,and impairment manifestation in group D and K was similar on the whole.[Conclusion]sixpetal clematis root injection may protect articular cartilage by maintaining and promoting the chondrocyte synthesizing proteoglycan and type Ⅱ collagen.
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Objective To explore the relationship between dynamic changes in ultra-micro-structural of pulmonary arteries and endogenous hydrogen sulfide in rats with left-right shunt.Methods Rats in shunt group were subjected to an abdominal aorta-inferior vena cava shunt to create an animal model of pulmonary artery structural remodeling. After 1 day, 3 days, 1 week, 4 weeks and 8 weeks of experiment, the ultra-micro-morphologic changes of pulmonary arteries of rats were observed under electronic microscope and H_2S concentration in serum was evaluated by modified sulfide electrode method.Results The changes of ultra-micro-structure of pulmonary arteries were progressively exacerbated, endothelial cells became swollen and large in size on 3 days, smooth muscular cells increased in size as well as the change of endothelial cells in 1 week, and they changed from contractile phenotype to synthetic phenotype in 4 weeks.Conclusions Shunt exhibited changes of ultra-micro-structure of pulmonary arteries are accompanied by the changes of endogenous H_2S. It is suggested that endogenous H_2S might play a protective role in changes of ultra-micro-structure of pulmonary artery.
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Aim To study the effects of Metformin (MF) on endocrine function of pituitary-gonad axis in rats. Methods The serum hormone concentration was measured with radioimmunoassay (RIA) and the morphology of gonad endocrine cells was observed with electron microscope. Results MF(135 mg?kg-1?d-1,ig,14 d)decreased serum T concentration in male rats and serum LH concentrations in female rats significantly(P
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Objective To isolate and culture the rabbit mesenchymal stem cells,and explore the biological features in vitro.Methods Two milliliter of bone marrow was extracted from the tibia of juvenile rabbit under anesthesia and sterile conditions,and mesenchymal stem cells were obtained by density gradient centrifugation and inoculated to 100ml culture flask.The morphological changes,adherence rate and ultrastructure of the stem cells were observed.The surface markers and growth cycle of the mesenchymal stem cells were detected by flow cytometry,and biological features were observed by inducing the cells differentiate into osteoblasts.Results The adherence of mesenchymal stem cells started 2 hours after culturing,basically finished 20 hours later,and more than 90% of the cells were fused at the 15th day.Observed with transmission electron microscopy,the cultured cells showed typical ultrastructure of stem cells: numbers of microvillus mainly distributed on one side of the cells,irregular nuclei with indentation,and lots of cell organs.Analysis for the cell surface markers indicated positive expression of CD44 and CD90 and negative expression of CD45 in mesenchymal stem cells.Cell growth cycle assay showed that most mesenchymal stem cells(about 97%) stayed in stage G1 and G2.Three weeks after osteoblastic induction,the mesenchymal stem cells gradually produced small calcium salt crystals,the cells were positive in alkaline phosphatase staining,and Von Kossa staining showed many calcium salts in the cell clone as black reaction deposits.Conclusions The rabbit bone marrow mesenchymal stem cells isolated by density gradient centrifugation are of high purity and stable growth rate,and the cells' characters can be still maintained after serial subcultivation.Since easy to operate on isolation and proliferation,the mesenchymal stem cells could be used as the tissue engineering seed cells in repairing of intervertebral disc degeneration.
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AIM To study the effects of cyproheptadine (Cyp) on endocrine functions and pituitary adrenalcortex axid in rats and its mechanism METHODS Radioimmunoassay(RIA)was used to measure the serum levels of ACTH and cortisone Ultramicrostructure of the ACTH cells and adrenalcortex and the calmodulin(CaM) mRNA expression of the pituitary and adrenalcortex were observed by electron microscope and the quantity PCR technique RESULTS Cyp 2 3 and 4 6 mg?kg -1 ?d -1 , ig for 14 d had significantly reduced the serum levels of ACTH and cortisone ( P
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Objective:To investigate the changes in number,morphology and function of Langerhans cells and the molecular mechanisms in the tissues of condyloma accuminatum.Methods:CD1a,E-cadherin were measured by streptavidin peroxidase method and reverse transcriptase PCR in 26 CA lesions and 10 normal controls.Ultramicrostructure of LC was observed by transmission electronic microscope(TEM).Results:In CA tissues,the number of CD1a+ LC decreased(10.66?11.71,P
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0.05).At the 3rd week,the Bcl-2 expression was lower in exercise training group than in stimulating group and control group(P