Your browser doesn't support javascript.
loading
Montrer: 20 | 50 | 100
Résultats 1 - 17 de 17
Filtre
1.
Journal of Experimental Hematology ; (6): 1093-1099, 2023.
Article Dans Chinois | WPRIM | ID: wpr-1009966

Résumé

OBJECTIVE@#To investigate the effect of resveratrol (RSV) on the proliferation of multiple myeloma (MM) cells and its molecular mechanism.@*METHODS@#MM cells (MM1.S, RPMI-8226 and U266) were treated with different concentrations of RSV for 24-72 h. The effect of RSV on the proliferation of MM cells was detected by CCK-8 (cell counting kit-8) assay. RPMI-8226 cells were divided into RSV, miR-21 mimic, RSV+miR-21 mimic, miR-21 inhibitor and RSV+miR-21 inhibitor groups, and transfected with corresponding plasmids. The cell cycle distribution of each group was detected by flow cytometry with propidium iodide (PI) single staining. The cell apoptosis of each group was detected by AnnexinV-FITC/PE-PI double staining. The expression of miR-21 in MM cells treated with RSV and the expression of KLF5 mRNA in each group were detected by qRT-PCR. The expression of KLF5 protein in each group was detected by Western blot.@*RESULTS@#RSV inhibited the proliferation and induced apoptosis of MM cells in a time- and dose-dependent manner. After the MM cells were treated with RSV, the number of cells in sub-G1 phase was increased, and that in G2/M phase was decreased. Moreover, RSV significantly downregulated the expression of miR-21 in MM cells, and the inhibitory effect of miR-21 mimic on KLF5 expression in MM cells was counteracted by RSV.@*CONCLUSION@#RSV may inhibit the proliferation and induce apoptosis of MM cells by inhibiting miR-21 and up-regulating KLF5 expression.


Sujets)
Humains , Resvératrol/pharmacologie , Myélome multiple/métabolisme , Prolifération cellulaire , Lignée cellulaire tumorale , Apoptose , microARN/génétique
2.
Chinese Journal of Practical Gynecology and Obstetrics ; (12): 1043-1046, 2019.
Article Dans Chinois | WPRIM | ID: wpr-816290

Résumé

OBJECTIVE: To investigate the distribution characteristics and risk factors of HPV infection in the cervical intraepithelial neoplasia(CIN)cohort in Shanxi Province.METHODS: From June to December 2014,40,000 married women under the age of 65 years in Shanxi were screened for cervical cancer,and the abnormal cervical fluid-based cytology(TCT)was excluded.Gland microscopy and histopathological examination were performed.Finally a total of 2304 women were included in the study.Questionnaires were used to collect demographic characteristics and factors related to cervical cancer,and HPV typing was performed by flow-through hybridization.RESULTS: Among the 2304 subjects,the HPV infection age range was 36-40 years old;the top 5 HPV infection rates were HPV16/58/52/53/51.The top 5 HPV infectionrates in CIN2 及 以 上 were HPV16/58/31/33/52. HPV single infection accounted for 23.13%,multiple infection accounted for 9.51%,and with the increase of cervical lesion,degree HPV single infection rate and multiple infection rate also increased.Multivariate analysis showed that the risk of HPV infection in those who were educated for ≤ 9 years was 1.236 times(95% CI 1.029-1.484)of those who were educated for >9 years;the risk of HPV infection in the women with non-menstrual use of pads was 1.328 times(95% CI 1.016~1.736)of menopausal women,the risk of HPV infection in non-menopausalwomen was 2.407 times of those without(95% CI 2.012-2.880).CONCLUSION:s The high-risk age of HPV infection in Shanxi is 36-40 years old;the most common type of HPV infection is HPV16/58/52/53/51;the most pathogenic type is HPV16,58,31,33,52,whose distribution characteristics are different from those of other areas;short-term education,non-menopause,and non-menstrual use of pads are high-risk factors for HPV infection.

3.
International Eye Science ; (12): 1284-1286, 2018.
Article Dans Chinois | WPRIM | ID: wpr-695429

Résumé

·AIM: To research the quality of life ( QOL ) and influencing factors in patients with diabetic retinopathy (DR). ·METHODS: A total of 103 diagnosed case of diabetic retinopathy from January 2017 to August 2017 in Daping Hospital of Chongqing were enrolled in this study. The questionnaire survey was conducted using Scale of Quality of Life in Patients with Visual Impairment (SQQL-VI ) and social support revalued scale. The factors influencing their quality of life were also analyzed. The data were analyzed by SPSS 25. 0 software. Proportions were compared by using the chi-square test and the means were compared by using the t-test. The factors of DR such as age, gender, education and social support were analyzed using stepwise multiple linear regression. ·RESULTS: The scores in the patients with diabetic retinopathy included total quality of life 63. 59 ± 9. 58, symptoms and visual function 53. 13 ± 8. 51, body function 28. 39 ± 3. 86, social activities 27. 95 ± 3. 63, psychological aspects 27. 78 ± 3. 85. The single factor analysis showed that there were significant differences in age, education level occupation, monthly income, the style of medical cost, course of disease, and social support (P<0. 05). Multivariate linear regression indicated that age, education level, the style of medical cost, course of disease, and social support were statistically significantly associated with the quality of life (P<0. 05). ·CONCLUSION: To improve the quality of life of DR patients, it is essential to reduce the financial burden and increase the social support.

4.
Chinese Journal of Virology ; (6): 630-635, 2014.
Article Dans Chinois | WPRIM | ID: wpr-280316

Résumé

The aim of this study was to understand the enterovirus types and biological features of pediatric cases of HFMD in Sanmenxia City during 2011, and compare the latter to a cohort of healthy children. Stool samples of 55 cases of HFMD and 60 healthy children were collected for the isolation and identification of enteroviruses using RNA extraction and real-time RT-PCR assays. EV71 and CA16 were identified by nucleotide sequencing using virus-specific VP1 primers; for the other enteroviruses, 012/011 and 008/013 primers were used for amplification and sequencing. The results were analysed by sequence alignment with known sequences, and the characteristics of the EV71 VP1 gene were also analyzed. The detection rates for enteroviruses in cases of HFMD and healthy children were 52.73% (29/55) and 18.33% (11/60), respectively. Among these, there were 22 cases of EV71, four cases of CA16 and three cases of other enteroviruses in the cases with HFMD. Eleven healthy children had intestinal viruses, of which nine were Coxsackie B virus strains (81.82%, 9/11). Gene sequencing of the 19 EV71 strains illustrated that they were all subgenotype C4a, but the evolutionary tree showed an obvious clustering between cases from Lingbao City and Lushi County. This study demonstrates that the EV71 subgenotype C4a and CA16 strains were the most common cause of HFMD in Sanmenxia City in 2011, and that Coxsackie B strains were prevalent in healthy children. This finding may indicate that there is a widespread source of recessive infection in the community.


Sujets)
Enfant , Enfant d'âge préscolaire , Femelle , Humains , Nourrisson , Mâle , Chine , Épidémiologie , Villes , Épidémiologie , Entérovirus humain A , Classification , Génétique , Syndrome mains-pieds-bouche , Épidémiologie , Virologie , Phylogenèse , Protéines virales , Génétique
5.
China Journal of Chinese Materia Medica ; (24): 674-677, 2013.
Article Dans Chinois | WPRIM | ID: wpr-350708

Résumé

<p><b>OBJECTIVE</b>To compare Cirsium japonicum characteristics with C. leo and C. leducei, along with the content of buddleoside and pectolinarin, and lay the foundation for the quality control of C. japonicum.</p><p><b>METHOD</b>Samples were collected and the relevant drugs were bought. The samples were divided into root, stem, leaf and flower, and the content of buddleoside and pectolinarin was determine by the HPLC. Chromatographic column: Waters XBridge C18 (4.6 mm x 250 mm), mobile phase: methanol-water (45: 55), measurement wavelength: 326 nm, flow rate: 0.8 mL x min(-1), column temperature: 30 degrees C. RESULT AND CONDUSION: Standard curve equation of buddleoside: Y = 74 064X-47 748, R2 = 0.991. Standard curve equation of pectolinarin: Y = 1 711 64X - 180 707, R2 = 0.999. The content of buddleoside: C. japonicum leaf was 1.987 3%, C. leo leaf 1.412 2%, C. leducei leaf 0.149 2%. The content of buddleoside was lower in root and stem. Pectolinarin was not detected in the C. japonicum and C. leo. The pectolinarin content was 0.069 0% in C. leducei leaf.</p>


Sujets)
Chromatographie en phase liquide à haute performance , 4H-1-Benzopyran-4-ones , Chimie , Cirsium , Chimie , Médicaments issus de plantes chinoises , Chimie , Reproductibilité des résultats , Solubilité , Spécificité d'espèce
6.
Chinese Journal of Trauma ; (12): 638-643, 2012.
Article Dans Chinois | WPRIM | ID: wpr-426733

Résumé

Objective To discuss the clinical significance of internal fixation through anterolaterel and posteromedial approaches in the treatment of closed sagittal Pilon fractures of Topliss classification and compare the effects of the two approaches.Methods The study involved 57 patients with closed sagittal Pilon fractures treated with open reduction and internal fixation from 2007 to 2010,including 29 patients treated through anterolateral approach (Group A) and 28 through posteromedial approach (Group B).All patients were with closed fractures,and all surgery time windows were 10-19 days.The two groups were compared in aspects of gender,age,type of fractures,soft tissue graduation,injury factors,condition of combined fibula fracture,surgery time window,operation time,intra-operative blood loss,ambulation time,infection and necrosis rate of skin and soft tissue,length of stay,ankle joint function recovery after internal fixation,and intra-operative X-ray reduction.Results All patients were followed up for 12-26 months (mean,20 months) except for one patient in the Group A,with total follow-up rate of 98%.The two groups showed no significant differences regarding the gender,age,type of fractures,soft tissue graduation,injury factors,condition of combined fibula fracture,surgery time window selection,operation time,intra-operative blood loss,and ambulation time (P >0.05).While,the infection and necrosis incidence of skin and soft tissue,and the hospital stay we re significantly lower and shorter in the Group A than that in the Group B (P < 0.05 ).Two patients in the Group A were complicated with toe extensor tendon adhesion,which was released by removing the fixation.Fifteen patients had wound infection during hospitalization,including three patients in the Group A and 12 in the Group B,but they were all cured after treatments like dressing.Fifteen patients were treated with stage Ⅰ allogeneic bone graft and 11 with autologous iliac bone graft.All the patients obtained bone union.Conclusions Topliss classification of closed sagittal Pilon fractures has clear clinical significance in surgical plan selection and operative procedures.Both of the anterolateral and posteromedial approaches can achieve good effects in the treatment of closed sagittal Pilon fractures due to high energy injury.However,the anterolateral approach is relatively a better choice,for it brings in a lower incidence of infection and necrosis of skin and soft tissue and a shorter length of hospital stay.

7.
Chinese Journal of Epidemiology ; (12): 1139-1140, 2012.
Article Dans Chinois | WPRIM | ID: wpr-289566

Résumé

Objective To study the mental health situation on men who have sex with men (MSM) among university students.Methods Snowballing method was used to recruit the target people,and to use both symptom checklist (SCL-90) and psychological interview for measurement.SPSS 11.5 and t-test were used for descriptive analysis.Results Measurement of 120 MSM at colleges,the average SCL-90 test appeared as 2.73 (s=0.51).Mental health situation of the MSM who had been out of the ‘closet’ was better than those who had not (t=17.325,P<0.01).Among MSM who had had stable same-sex partners was in better situation than those without (t=7.286,P<0.05).There appeared significant effect in improving the mental health situation of MSM who had received psychological counseling and participating in those activities relevant to psychological assistance (F=31.54,P<0.01).Conclusion Moderate or severe psychological distress often seen in the MSM college students,suggesting that psychological counseling provided to these people was very important.

8.
World Journal of Emergency Medicine ; (4): 222-227, 2011.
Article Dans Chinois | WPRIM | ID: wpr-789518

Résumé

BACKGROUND: Edaravone can alleviate brain injury and improve neurological functions and symptoms. This study aimed to investigate the effect of edaravone on the p38Mitogen-activated protein kinases/Caspase-3 (p38MAPK /Caspase-3) pathway after diffuse brain injury (DBI) in rats. METHODS: DBI models were established according to the description of Marmarou's method. A total of 250 rats were divided (random number) into four groups: control group (CG, n=45), model group (MG, n=77), low-dose edaravone group (n=67, dosage 5 mg/kg) and high-dose edaravone group (n=61, dosage 10 mg/kg). After 1, 6, 24, 48, and 72 hours after injury, brain tissues were collected. The changes of neuron morphous in the hippocampal region were observed through Nissl staining. The expression levels of phosphorylated p38MAPK and caspase-3 were detected by immunohistochemistry and Western blotting respectively. Learning and memory function were tested with Morris water maze from the 3rd to 7th day after injury. RESULTS: Some neurons had histopathologic changes of necrosis and apoptosis in the model group compared with the control group. The phosphorylated p38MAPK expressions increased at 1, 6, 4, and 48 hours (P<0.05), but no significant difference was observed at 72 hours (0.54±0.19 vs. 0.40±0.14, P>0.05). Caspase-3 expressions increased at 6, 24, 48, and 72 hours respectively (P<0.05), but there was no significant difference at 1 hour (0.59±0.29 vs. 0.40±0.17, P>0.05). From the 3rd to 6th day during the Morris water maze test, the latency to find the platform was significantly prolonged (P<0.05) and times of rats crossing the platform was decreased on the 7th day (2.28±1.18 vs. 8.20±1.52, P<0.05). The phosphorylated p38MAPK expressions decreased at 6, 24 and 48 hours respectively in the low dose edaravone group compared with the model group (P<0.05), whereas no significant difference was seen at 1 hour (1.66±0.80 vs. 1.85±0.86, P>0.05). Caspase-3 expression decreased at 6, 24, 48, and 72 hours (P<0.05). The latency to find the platform was significantly shortened (P<0.05), and times of rats crossing the platform increased (4.17±1.15 vs. 2.28±1.18, P<0.05). The above mentioned parameters changed more significantly in the high-dose edaravone group than in the low-dose edaravone group. CONCLUSION: Edaravone can alleviate brain tissue damage after DBI, inhibit p38MAP signal activation after early injury, reduce the expression of caspase-3, and promote the recovery of neurological function in the late period.

9.
Chinese Journal of Nuclear Medicine ; (6): 367-371, 2010.
Article Dans Chinois | WPRIM | ID: wpr-642172

Résumé

Objective To compare the diagnostic value of myocardial perfusion imaging (MPI) and 64 multi-slice spiral CT (64-MSCT) for coronary artery disease (CAD). Methods Fifty-two patients with suspected or known CAD were included in the study. Each patient underwent both stress and rest MPI,MSCT as well as conventional coronary angiography (CAG) within 1 month. The stress and rest MPI were scored by a 5-grade criteria (0 ~ 4) based on 17 coronary artery segments. The difference between summed stress and rest scores > 1 was defined as myocardial ischemia. Stenosis in one main vessel or one main branch of the main vessel ≥50% was defined as myocardial ischemia by MSCT. CAG was used as the reference for comparison. Statistical analysis was performed using SPSS 13. 0 software. Kappa value was used to test the accordance of MPI and MSCT results. X2 test was used to evaluate the difference between MPI and MSCT results. Results The patient-based sensitivity, specificity, positive and negative predictive values and accuracy of MPI and MSCT for the diagnosis of CAD were 86.7% (26/30), 77.3% ( 17/22),83.9% (26/31), 81.0% ( 17/21), 82.7% (43/52) and 83.3% ( 25/30), 86.4% ( 19/22), 89.3%( 25/28), 79.2% ( 19/24), 84.6% (44/52), respectively. The vessel-based sensitivity, specificity, positive and negative predictive values and accuracy of MPI and MSCT were 74.5% (38/51), 81.0% (85/105 ), 65.5% (38/58), 86.7% ( 85/98), 78.8% ( 123/156 ) and 90.2% (46/51 ), 88.6% ( 93/105 ),79.3 % (46/58), 94.9% (93/98), 89.1% ( 139/156), respectively. There was no statistically significant difference between MPI and MSCT for either patient or lesion-based diagnosis (X2 =0.44, 0.21, both P >0.05 ). 96.0% (24/25) patients with both abnormal MPI and MSCT positive were valified by CAG while 83.3% (15/18) patients with both MPI and MSCT negative were excluded by CAG. Conclusions Both MPI and MSCT are reliable diagnostic modalities for CAD. They also provide complementary diagnostic value to each other.

10.
Chinese Journal of Traumatology ; (6): 240-243, 2010.
Article Dans Anglais | WPRIM | ID: wpr-272913

Résumé

<p><b>OBJECTIVE</b>To evaluate the interface characteristics of the new-designed locking plate (LP) and limited contact-dynamic compression plate (LC-DCP) and compare the fracture healing between LP and LC-DCP in a goat tibia fracture model.</p><p><b>METHODS</b>Eight-hole LP and LC-DCP were applied to fix fresh goat tibiae in a reproducible manner. The average pressure, force and interface contact area were calculated using Fuji prescale pressure sensitive film interposed among the plate and the bone and image analysis system. Eight-hole LP and LC-DCP were applied to each tibia in a goat tibia fracture model. The fracture healing was evaluated by X-ray photography at postoperative 8 weeks. The goats were sacrificed at postoperative 12 weeks. Three-point bending test was conducted in the tibiae.</p><p><b>RESULTS</b>The interface contact of LP system was smaller than that of LC-DCP (P < 0.05), while interface contact force of LP system was higher than that of LC-DCP (P < 0.05). Radiographs revealed that the fracture line disappeared in the LP group, while the fracture line was visible in DCP group at postoperative 8 weeks. At postoperative 12 weeks, the bending strength and bending load of fractured tibia were higher in LP group than in DCP group, respectively.</p><p><b>CONCLUSION</b>The new-designed locking plate can significantly decrease the contact area on the bone interface, which further provides better fracture healing than conventional plates.</p>


Sujets)
Animaux , Phénomènes biomécaniques , Plaques orthopédiques , Ostéosynthèse interne , Consolidation de fracture , Capra , Fixateurs internes , Tibia , Fractures du tibia , Chirurgie générale
11.
Chinese Journal of Surgery ; (12): 1472-1474, 2008.
Article Dans Chinois | WPRIM | ID: wpr-258342

Résumé

<p><b>OBJECTIVE</b>To investigate the safety and efficacy of sonographically guided percutaneous intralesional sclerotherapy for peripheral venous malformations.</p><p><b>METHODS</b>From March 2004 to October 2007, 32 patients with venous malformations of soft tissues were treated with sonographically guided intralesional sclerotherapy. The malformed venous space was identified intraoperatively by duplex scanning, the gauge 7 needle was inserted into this venous space under real-time ultrasound visualization, and sclerosants were infused in the space gently. Absolute alcohol and bleomycin acted as sclerosants here, combined the two (for type I malformation) or bleomycin only (for type II malformation). The treatment could be repeated if the lesion was not cured in 3 weeks. All patients were followed up for 6 months to 2 years.</p><p><b>RESULTS</b>Of the group, each patient received 1 - 6 times of the therapy (mean, 3 times). Twenty-seven patients achieved a complete response, and 5 achieved partial response. No major complications occurred.</p><p><b>CONCLUSIONS</b>Sonographically guided percutaneous intralesional sclerotherapy for peripheral venous malformation is a simple, effective, safe therapy with minimal invasion, lower morbidity rate, and can be repeated.</p>


Sujets)
Adolescent , Adulte , Enfant , Enfant d'âge préscolaire , Femelle , Humains , Mâle , Adulte d'âge moyen , Études de suivi , Solutions sclérosantes , Sclérothérapie , Échographie , Anomalies vasculaires , Imagerie diagnostique , Thérapeutique , Veines , Malformations , Imagerie diagnostique
12.
Chinese Journal of Traumatology ; (6): 171-176, 2007.
Article Dans Anglais | WPRIM | ID: wpr-236787

Résumé

<p><b>OBJECTIVE</b>To construct tissue-engineered neural complex in vitro and study its effect in repairing acutely injured spinal cord in adult rats.</p><p><b>METHODS</b>Neural stem cells were harvested from the spinal cord of embryo rats and propagated in vitro. Then the neural stem cells were seeded into polyglycolic acid scaffolds and co-cultured with extract of embryonic spinal cord in vitro. Immunofluorescence histochemistry and scanning electron microscope were used to observe the microstructure of this complex. Animal model of spine semi-transection was made and tissue-engineered neural complex was implanted by surgical intervention. Six weeks after transplantation, functional evaluation and histochemistry were applied to evaluate the functional recovery and anatomic reconstruction.</p><p><b>RESULTS</b>The tissue-engineered neural complex had a distinct structure, which contained neonatal neurons, oligodendrocytes and astrocytes. After tissue-engineered neural complex was implanted into the injured spinal cord, the cell components such as neurons, astrocytes and oligodendrocytes, could survive and keep on developing. The adult rats suffering from spinal cord injury got an obvious neurological recovery in motor skills.</p><p><b>CONCLUSIONS</b>The tissue-engineered neural complex appears to have therapeutic effects on the functional recovery and anatomic reconstruction of the adult rats with spinal cord injury.</p>


Sujets)
Animaux , Femelle , Rats , Rat Sprague-Dawley , Traumatismes de la moelle épinière , Chirurgie générale , Transplantation de cellules souches , Méthodes , Ingénierie tissulaire , Méthodes
13.
Chinese Journal of Plastic Surgery ; (6): 439-441, 2006.
Article Dans Chinois | WPRIM | ID: wpr-297123

Résumé

<p><b>OBJECTIVE</b>To study the clinic application of compound flap pedicled with arterial arch of palpebral margin in repairing severe full defect of eyelid.</p><p><b>METHODS</b>According to eyelid structure and the defect size, the two compound flaps were designed beside the defect based on the arterial arch of the palpebral margin. If the defective area was too large, the lateral compound flap may be extended to lower or upper eyelid 0.5 cm away from the outer canthus, then cut and propelled the two compound flaps to repair the full eyelid defect.</p><p><b>RESULTS</b>20 cases had been cured with this method since 1998. In this cases, 4 cases were basal cell carcinoma of eyelid, 2 cases were squamous carcinoma, 3 angiomas, 6 chromatophore nexuses, 3 traumatic defects, 2 congenital defects. The largest length of eyelid full defect was 1.7 cm and the smallest was 0.8 cm. 6 cases were upper eyelid defect and 14 cases were lower eyelid defect. All the compound flaps survived completely without any complications. All cases obtained satisfactory results functionally and esthetically.</p><p><b>CONCLUSIONS</b>Repairing full eyelid defect with the compound eyelid flap is the same kind tissue repairing. It can not only provide enough tissues to primary repair large full defect of the upper or lower eyelid to restore normal anatomical structure and appearance of the eyelid, but also is easy to be operated without severe secondary deformities. The arterial arch of the palpebral margin is constant and the blood supply of the compound flap is reliable. It is an ideal method of repairing the eyelid defect.</p>


Sujets)
Adulte , Sujet âgé , Enfant , Enfant d'âge préscolaire , Femelle , Humains , Nourrisson , Mâle , Adulte d'âge moyen , Paupières , Transplantation , Artère ophtalmique , Transplantation , , Méthodes , Lambeaux chirurgicaux
14.
Chinese Journal of Plastic Surgery ; (6): 124-127, 2004.
Article Dans Chinois | WPRIM | ID: wpr-327291

Résumé

<p><b>OBJECTIVE</b>To explore the effect of connective tissue growth factor on the pathogenesis of human hypertrophic scar.</p><p><b>METHODS</b>Normal skin and hypertrophic scar fibroblasts were cultured in vitro. The collagen synthesis of fibroblasts were measured by H3-proline incorporation method. The expression of connective tissue growth factor protein and mRNA of fibroblasts were detected with immunocytochemistry staining and reverse transcription polymerase chain reaction methods.</p><p><b>RESULTS</b>Compared with normal skin fibroblast, the collagen synthesis and the expression of connective tissue growth factor protein and mRNA in the hypertrophic scar fibroblast was higher (P < 0.01).</p><p><b>CONCLUSION</b>Connective tissue growth factor may play an important role in promoting the fibrotic process of hypertrophic scar.</p>


Sujets)
Humains , Cellules cultivées , Cicatrice hypertrophique , Génétique , Métabolisme , Anatomopathologie , Collagène , Facteur de croissance du tissu conjonctif , Fibroblastes , Métabolisme , Anatomopathologie , Expression des gènes , Protéines précoces immédiates , Génétique , Immunohistochimie , Protéines et peptides de signalisation intercellulaire , Génétique , ARN messager , Génétique , Métabolisme , RT-PCR
15.
Chinese Journal of Plastic Surgery ; (6): 454-456, 2004.
Article Dans Chinois | WPRIM | ID: wpr-255123

Résumé

<p><b>OBJECTIVE</b>To explore the effects of connective tissue growth factor (CTGF) on the pathogenesis of human keloid.</p><p><b>METHODS</b>CTGF antisense oligonucleotides (ASODN) conjugated with isothiocyanate fluorescence was encapsulated by liposome, and then added into the human keloid fibroblast (HKF) culturing media. The intracellular distribution of CTGF ASODN was observed with fluorescence microscopy in the fixed HKF. The proliferation of HKF was measured by MIT test. The apoptosis of HKF was measured with a flow cytometer. The collagen synthesis of HKF was measured by using H3-proline incorporation method.</p><p><b>RESULTS</b>The CTGF ASODN inhibited the proliferation and collagen synthesis of the HKF, compared with the control, but it increased the apoptosis after the transfection (P < 0.01).</p><p><b>CONCLUSION</b>CTGF ASODN may has anti-fibrotic effects on human keloid in vitro, and the CTGF may play an important role in promoting the fibrosis of human keloid.</p>


Sujets)
Humains , Apoptose , Différenciation cellulaire , Cellules cultivées , Facteur de croissance du tissu conjonctif , Génétique , Fibroblastes , Biologie cellulaire , Chéloïde , Métabolisme , Anatomopathologie , Oligonucléotides antisens , Génétique , Transfection
16.
Chinese Journal of Burns ; (6): 72-75, 2004.
Article Dans Chinois | WPRIM | ID: wpr-352218

Résumé

<p><b>OBJECTIVE</b>To study the role of connective tissue growth factor (CTGF) in the pathogenesis of human keloid.</p><p><b>METHODS</b>Human keloid fibroblasts (HKF) were isolated from human keloid and cultured in vitro. The cells were then divided into 3 groups according to different processing, i.e. ASODN treatment (AT), in which phosphorothioate CTGF antisense oligonucleotides (ASODN) labeled by fluorescent isothiocyananate were transfected into the HKFs by liposome; liposome control (LC, with liposome only); control groups (without liposome or ASODN). The distribution of CTGF ASODN in all groups of cells was observed under fluorescent microscope. The CTGF mRNA index (RI) of HKF was assessed by reverse transcription polymerase chain reaction method (RT-PCR). The collagen synthesis of HKF was assessed by (3)H-proline incorporation method.</p><p><b>RESULTS</b>A large amount of fluorescence could be observed in the cytoplasm of HKFs in AT 12 hours after transfection, but not in LC and C groups. The CTGF mRNA index of HKF in AT group 48 hours after transfection was significantly lower than that in LC and C groups (0.12 +/- 0.62 vs 0.51 +/- 0.18 vs 0.54 +/- 0.35, P < 0.01). The (3)H-proline incorporation rate in AT group (108.96 +/- 79.05) was lower than that in LC and C groups (P < 0.01).</p><p><b>CONCLUSION</b>The expression of CTGF gene and collagen synthesis of the cultured HKF could be inhibited by CTGF ASODN, implying that CTGF played a role in the development of excessive fibrosis of human keloid.</p>


Sujets)
Humains , Collagène , Facteur de croissance du tissu conjonctif , Fibroblastes , Métabolisme , Protéines précoces immédiates , Génétique , Physiologie , Protéines et peptides de signalisation intercellulaire , Génétique , Physiologie , Chéloïde , Métabolisme , Oligonucléotides antisens , Pharmacologie , ARN messager , Transfection
17.
Chinese Journal of Plastic Surgery ; (6): 183-185, 2003.
Article Dans Chinois | WPRIM | ID: wpr-256454

Résumé

<p><b>OBJECTIVE</b>To evaluate a pudendal-thigh island flap for vaginal reconstruction.</p><p><b>METHODS</b>Forty-seven patients with congenital absence of vagina were undergoing the treatment. Based on the pedicle including the posterior labial neurovascular bundle, a pudendal-thigh island flap was designed and raised in the groin crease just lateral to the labia majora under the deep fascia. It was then transferred to the tunnel between the urethra and the anus for reconstruction of the vagina.</p><p><b>RESULTS</b>From May of 1993 to July of 2001, 47 patients were successfully treated for the vaginal reconstruction with the flap. The results were satisfactory without complications.</p><p><b>CONCLUSION</b>The above mentioned technique could be a safe and effect method for vaginal reconstruction with the advantages of reliable blood supply, good sensation and few complications. The areaes with the bilateral pudendal-thigh could be large enongh for the vaginal reconstruction without problem of the donor closure.</p>


Sujets)
Femelle , Humains , Mâle , Fasciotomie , Aine , Procédures de chirurgie gynécologique , Méthodes , Lambeaux chirurgicaux , Cuisse , Urètre , Vagin , Malformations , Chirurgie générale , Vulve , Malformations , Chirurgie générale
SÉLECTION CITATIONS
Détails de la recherche