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1.
Artículo en Chino | WPRIM (Pacífico Occidental) | ID: wpr-1023140

RESUMEN

A major impedance to neuronal regeneration after peripheral nerve injury(PNI)is the activation of various programmed cell death mechanisms in the dorsal root ganglion.Ferroptosis is a form of pro-grammed cell death distinguished by imbalance in iron and thiol metabolism,leading to lethal lipid peroxidation.However,the molecular mechanisms of ferroptosis in the context of PNI and nerve regeneration remain unclear.Ferroportin(Fpn),the only known mammalian nonheme iron export protein,plays a pivotal part in inhibiting ferroptosis by maintaining intracellular iron homeostasis.Here,we explored in vitro and in vivo the involvement of Fpn in neuronal ferroptosis.We first delineated that reactive oxygen species at the injury site induces neuronal ferroptosis by increasing intracellular iron via accelerated UBA52-driven ubiquitination and degradation of Fpn,and stimulation of lipid peroxidation.Early administration of the potent arterial vasodilator,hydralazine(HYD),decreases the ubiquitination of Fpn after PNI by binding to UBA52,leading to suppression of neuronal cell death and significant ac-celeration of axon regeneration and motor function recovery.HYD targeting of ferroptosis is a promising strategy for clinical management of PNI.

2.
Artículo en Chino | WPRIM (Pacífico Occidental) | ID: wpr-998582

RESUMEN

ObjectiveTo observe the clinical effect of Yiqi Liangxue Shengji Formula (益气凉血生肌方, YLSF) on recurrence of angina pectoris and quality of life at eight weeks after perecutaneous coronary intervention (PCI). MethodsEighty-two coronary artery disease (CAD) patients with qi deficiency and blood stasis and binding of stasis and heat syndrome who had underwent PCI were randomly divided into two groups with 41 patients each in the treatment group and the control group. Based on conventional western medicine after PCI, patients in the treatment group orally took YLSF granules while those in the control group were administered with placebo, one dose daily for 8 weeks. The recurrence rate of angina pectoris and readmission rate within eight weeks after PCI were recorded. Before and after treatment, total traditional Chinese medicine (TCM) syndrome score, Seattle Angina Questionnaire (SAQ) scores (physical limitation, angina stability, angina frequency, treatment satisfaction and disease perception), and the SF-36 scores for quality of life (physical and mental health) were evaluated. The adverse reactions during medication in both groups were recorded. ResultsWithin eight weeks after PCI, the recurrence rate of angina pectoris in the treatment group (4/41, 9.76%) was significantly lower than that in the control group (11/41, 26.83%, P<0.05). The readmission rate in the treatment group was 2.44% (1/41), while that in the control group was 12.20% (5/41), with no significantly statistical difference (P>0.05). After treatment, total TCM syndrome score significantly decreased in both groups, while in terms of quality of life, the SAQ scores on domains of angina stability, angina frequency and disease perception as well as SF-36 total scores, physical health and mental health scores significantly increased (P<0.05 or P<0.01). Compared between the two groups, total TCM syndrome score was significantly lower in the treatment group than the control group (P<0.01), while no significant differences were found in SAQ scores and SF-36 total, physical and mental health scores (P>0.05). No adverse reactions occurred in both groups during the treatment period. ConclusionYLSF can reduce the recurrence rate of angina pectoris within eight weeks after PCI for coronary artery disease, and can improve the TCM syndrome score, and have sound safety, with comparable effect to that of placebo in improving postoperative short-term quality of life.

3.
Artículo en Chino | WPRIM (Pacífico Occidental) | ID: wpr-1038327

RESUMEN

Objective @#To investigate the expression of class A scavenger receptor 1(MSR1) in the lungs of silico⁃ sis mice and its role in inflammation and lipid metabolism mediated by mouse mononuclear macrophages (RAW264. 7) . @*Methods @# 24 C57BL/6 male mice were randomly divided into control group , exposed 7 d group , exposed 14 d group , exposed 28 d group , with 6 mice in each group. RAW264. 7 cells were divided into control group , siRNA⁃MSR1 group , SiO2 group and siRNA⁃MSR1 + SiO2 stimulation group. The pathological changes of lung tissue in mice were observed by HE and VG staining. Lipid accumulation was observed under oil red O staining microscope. Immunohistochemical staining (IHC) was used to detect the expression and localization of MSR1 . The expression of MSR1 , tumor necrosis factor (TNF) Ⅳα , interleukin (IL) Ⅳ6 and IL⁃1β were detected by Western blot. @*Results @#Compared with the control group , HE and VG staining results showed that inflammatory cells gathered and collagen distribution increased in the lung tissue of silicosis mice. Oil red O staining showed that a large number of orange⁃red lipid droplets appeared in the lung tissue of mice. IHC results showed that the expression of MSR1 was up⁃regulated in silicosis inflammation stage. Western blot results showed that the expression of MSR1, TNF⁃α , IL⁃6 and IL⁃1β was up⁃regulated in silicosis inflammation stage (P < 0. 05) . The expression of MSR1 in the SiO2 cell stimulation group was up⁃regulated ( P < 0. 05 ) , and the expression of MSR1 in the siRNA⁃MSR1 group decreased (P < 0. 05) , and lipid droplets also appeared in the SiO2 cell stimulation group. The accumulation of lipid droplets in siRNA⁃MSR1 + SiO2 stimulation group was lower than that in SiO2 group (P < 0. 01) . ELISA results showed that the expression of TNF⁃α , IL⁃6 and IL⁃1β in SiO2 cell stimulation group was up⁃regulated ( P <0. 05) . Compared with SiO2 group , the expression of TNF⁃α , IL⁃6 and IL⁃1β in siRNA⁃MSR1 + SiO2 stimulation group was down⁃regulated (P < 0. 05) . @*Conclusion @#MSR1 is involved in the regulation of lipid components and the release of inflammatory factors in lung tissue and cells of silicosis mice. Inhibition of MSR1 expression can an⁃ tagonize the inflammatory response and abnormal lipid accumulation in macrophages. MSR1 may be a potential therapeutic target for future intervention in the progression of silicosis.

4.
Artículo en Chino | WPRIM (Pacífico Occidental) | ID: wpr-1038481

RESUMEN

Objective @#To explore the regulatory role of microRNA⁃455 ⁃3p ( miR⁃455 ⁃3p) in lymphangiogenesis of rat silicosis model , and to investigate the effect of miR⁃455 ⁃3p targeted regulation of vascular endothelial growth factor C (VEGF⁃C) on the tubular structure formation of human lymphatic endothelial cells ( HLECs) .@*Methods@#The rats were randomly divided into the silicosis model group and the normal control group. The silicosis model group were injected with silicon dioxide (SiO2 )dust suspension , and the control group was injected with the same amount of normal saline. HE , Masson and immunohistochemistry staining were used to observe the pathological changes and lymphangiogenesis of lung tissue. The expression levels of miR⁃455 ⁃3p and VEGF⁃C in lung tissues of rats were detected by Quantitative real⁃time PCR ( RT⁃qPCR) and Western blot; The miR⁃455 ⁃3p inhibitors and negative controls ( NC) were transfected into HLECs , and the expression levels of miR⁃455 ⁃3p and VEGF⁃C in cells were detected by RT⁃qPCR and Western blot. The migration ability of HLECs was detected by scratch test , the ability of tubular structure formation was detected by matrigel tube formation test , and dual luciferase experiments were used to verify the targeting relationship between miR⁃455 ⁃3p and VEGF⁃C.@*Results @#Compared with the normal control group , in the silicosis model group , a large number of inflammatory cells gathered and collagen gradually deposited in the pulmonary interstitium , and there was lymphatic hyperplasia in the lung. The expression of miR⁃455 ⁃3p in the lung tissue was lower than that in the control group , and the expression of VEGF⁃C was higher than that in the control group ; After transfection with HLECs , compared with the NC group , the expression of miR⁃455 ⁃3p in the cells of the Inhibitors group decreased , the expression of VEGF⁃C increased , and the ability of cell migration and tubular structure formation increased(P < 0. 05) ; VEGF⁃C was confirmed as a target gene of miR⁃455 ⁃3p by the dual luciferase experiments.@*Conclusion @#miR⁃455 ⁃3p can affect the tubular structure formation ability of HLECs and regulate lymphangiogenesis by targeting the expression of VEGF⁃C.

5.
Artículo en Chino | WPRIM (Pacífico Occidental) | ID: wpr-1004053

RESUMEN

【Objective】 To establish and verify the vacuum decay method for the tightness inspection of blood products. 【Methods】 The method for inspecting the tightness of blood product was established, and the detection limit, linearity, range, accuracy, precision and durability were verified according to the requirements of methodological verification.The validated method was used to check the tightness of blood product packaging. 【Results】 The detection limit of this method was 2.5 μm, linear correlation coefficient was r=1, the differential pressure of positive sample was within the allowable range of accuracy, and the durability met the requirements.The RSD of results of 6 repeatability tests and 12 intermediate precision tests were both less than 10%, and all validation items met the verification standards. 【Conclusion】 Vacuum decay method can be used to check the tightness of blood products.

6.
Artículo en Chino | WPRIM (Pacífico Occidental) | ID: wpr-960439

RESUMEN

Background Lipid metabolism imbalance is tightly linked to the development and progression of multiple diseases. The phosphatidylinositol 3-kinase/protein kinase B/mammalian target of rapamycin (PI3K/AKT/mTOR) signaling pathway is important for the regulation of lipid metabolism. However, whether silicosis is associated with lipid metabolic abnormalities has yet to be explored. Objective To observe the changes of lipid deposition, cholesterol, and phosphorylated proteins of PI3K/AKT/mTOR pathway in silicon dioxide (SiO2)-induced MLE-12 cells and to explore potential mechanism of lipid composition regulated though the pathway. Methods (1) MLE-12 cells were stimulated with 50 mg·L−1 SiO2 suspension, and divided into fourgroups: a control group and three SiO2 groups (12, 24, and 48 h of stimulation). (2) Cellproliferation was detected to determine an optimal dose of LY294002, an inhibitor of PI3K protein. LY294002 at 5 μmol·L−1 was used for further study, in which MLE-12 cells cultured for 48 h were divided into four groups: a control group; a 50 mg·L−1 SiO2 suspension stimulation group; a 50 mg·L−1 SiO2 suspension and 5 μmol·L−1 LY294002 treatment group; a 5 μmol·L−1 LY294002 treatment group. Total cholesterol (TC), free cholesterol (FC), cholesterol ester (CE; total cholesterol minus free cholesterol), and triglycerides (TG) were measured with enzyme assay kits. Lipid deposition was observed using Oil Red O staining. The expressions of p-PI3K, p-AKT, and p-mTOR proteins were detected by Western blotting. Results (1) The contents of TC, FC, and CE in the 50 mg·L−1 SiO2-induced MLE-12 cells were increased compared to those of the control group in a time-dependent manner by trend analysis, and the increment at 24 and 48 h were significant. By 48 h, the contents of cholesterol indicators were all elevated: TC from (2.242±0.181) mg·g−1 to (5.148±0.544) mg·g−1, FC from (1.923±0.158) mg·g−1 to (4.168±0.433) mg·g−1, and CE from (0.318±0.067) mg·g−1 to (0.978±0.134) mg·g−1, compared with the control group (P<0.01). The changes of TG were not significant (P>0.05). The SiO2 suspension induced orange-red particle deposition in the MLE-12 cells, especially at 48 h (P<0.01). The protein expression levels of p-PI3K, p-AKT, and p-mTOR in SiO2-stimulated MLE-12 cells were higher than those of the control groups with the prolongation of stimulation time, which peaked at 48 h (P<0.01). (2) The contents of TC, FC, and CE in MLE-12 cells of the SiO2 + LY294002 group were decreased, comparing to those of the SiO2 stimulation only group (P<0.01), companied with less orange-red lipid deposition, and suppressed protein expression levels of p-PI3K, p-AKT, and p-mTOR (P<0.01). Conclusion SiO2 could induce increases of cholesterol and lipid deposition through activation of PI3K/AKT/mTOR signaling pathway in MLE-12 cells.

7.
Artículo en Inglés | WPRIM (Pacífico Occidental) | ID: wpr-922547

RESUMEN

Gradual distraction with an external fixator is a widely used treatment for severe postburn ankle contracture (SPAC). However, application of external fixators is complex, and conventional two-dimensional (2D) imaging-based surgical planning is not particularly helpful due to a lack of spatial geometry. The purpose of this study was to evaluate the surgical planning process for this procedure with patient-specific three-dimension-printed models (3DPMs). In this study, patients coming from two centers were divided into two cohorts (3DPM group vs. control group) depending on whether a 3DPM was used for preoperative surgical planning. Operation duration, improvement in metatarsal-tibial angle (MTA), range of motion (ROM), the American Orthopedic Foot and Ankle Society (AOFAS) scores, complications, and patient-reported satisfaction were compared between two groups. The 3DPM group had significantly shorter operation duration than the control group ((2.0±0.3) h vs. (3.2±0.3) h,

8.
China Occupational Medicine ; (6): 129-134, 2020.
Artículo en Chino | WPRIM (Pacífico Occidental) | ID: wpr-881874

RESUMEN

OBJECTIVE: To investigate the effect of liver X receptor(LXR)-adenosine triphosphate-binding cassette transporter A1(ABCA1) signaling pathway on the free silica(SiO_2)-induced foaming of macrophages. METHODS: Human histiocytic lymphoma U937 cells were induced to differentiate into macrophages by phorbol myristate acetate. The macrophages at logarithmic growth phase were randomly divided into 4 groups: the cells in the control group received no treatment, the cells in the SiO_2 stimulation group were stimulated with SiO_2 suspension at a dose of 50 mg/L, and the cells in the oxidized low-density lipoprotein(ox-LDL) group were treated with ox-LDL at the dosed 50 mg/L, the cells in the combination group were simultaneously stimulated with SiO_2 suspension and ox-LDL at a dose of 50 mg/L. Cells were collected after 48 hours of culture. Macrophage foaming was observed by oil red O staining. The levels of total cholesterol(TC), free cholesterol(FC), cholesteryl ester(CE) and CE specific gravity(CE%) in macrophages were detected using a microplate reader. The expression of LXR and ABCA1 was detected using Western blotting. RESULTS: The results of the oil red O staining showed that all the macrophages in the SiO_2 stimulation group, ox-LDL group and the combination group had foaming changes. The degree of foaming in the macrophages in the combination group was higher than that in the other two groups. The levels of TC, FC, CE and CE% in macrophages increased(P<0.05), and the protein relative expression of LXR and ABCA1 decreased(P<0.05), in SiO_2 stimulation group, ox-LDL group and combination group compared with the control group. The macrophages in the combination group were transformed into foam cells. The levels of TC, FC, CE and CE% in macrophages of the combination group increased(P<0.05), and the protein relative expression of LXR and ABCA1 decreased(P<0.05), compared with the SiO_2 stimulation group and the ox-LDL group. CONCLUSION:sFree SiO_2 can induce foaming of macrophages, and ox-LDL in combination with SiO_2 has a synergistic effect on the formation of foaming of macrophages.The process of macrophage foaming may be achieved by inhibiting the LXR-ABCA1 signaling pathway.

9.
China Occupational Medicine ; (6): 147-153, 2020.
Artículo en Chino | WPRIM (Pacífico Occidental) | ID: wpr-881877

RESUMEN

OBJECTIVE: To investigate the preventive effect of rock salt aerosol on the development of silicosis in rats. METHODS: The specific pathogen free adult male SD rats were randomly divided into normal control group, rock salt control group, silicosis model group and rock salt intervention group, 18 rats in each group. Rats in the silicosis model group and the salt rock intervention group were treated with silica dust at the concentration of 2 000.0 mg/m~3 by dynamic dusting method for 3 hours daily. Rats in the rock salt control group and the rock salt intervention group inhaled the rock salt aerosols with the mass concentration of 20.0 mg/m~3 for 30 minutes daily. The normal control group was not treated with the dust or rock salt aerosol. At the time points of 14, 28 and 56 days after exposure to dust or rock salt aerosol, 6 rats were randomly selected from each group and samples were collected. The pathological change of lung was observed, the total cell count in the bronchoalveolar lavage fluid(BALF) was performed, the enzyme-linked immunosorbent assay was used to detect the change of transforming growth factor-β(TGF-β) in BALF, surfactant D(SP-D) and superoxide dismutase(SOD) in lung tissue. RESULTS: The results of hematoxylin-eosin and Masson staining showed that the inflammatory changes of lung tissue and the pulmonary interstitial fibrosis in the rock salt intervention group were less severer than that in the silicosis model group. At 14, 28, and 56 days after dust exposure, the total cell counts in BALF and SP-D levels in lung tissue of rats in silicosis model group and rock salt intervention group were higher(P<0.05), the SOD activities in lung tissue were lower(P<0.05), as well as the TGF-β levels in BALF in silicosis model group were higher(P<0.05),compared with the normal control group and rock salt control group. The total cell counts and TGF-β levels in BALF, and SP-D levels in lung tissue of rock salt intervention group were lower(P<0.05), the SOD activities in lung tissue were higher(P<0.05), compared with the silicosis model group. CONCLUSION: Rock salt aerosol intervention may delay the pathogenesis of silicosis by improving the inflammatory response, regulating oxidative stress and reducing interstitial fibrosis of lungs.

10.
Protein & Cell ; (12): 1013-1026, 2018.
Artículo en Inglés | WPRIM (Pacífico Occidental) | ID: wpr-757971

RESUMEN

Lysosomes are degradation and signaling centers within the cell, and their dysfunction impairs a wide variety of cellular processes. To understand the cellular effect of lysosome damage, we screened natural small-molecule compounds that induce lysosomal abnormality using Caenorhabditis elegans (C. elegans) as a model system. A group of vobasinyl-ibogan type bisindole alkaloids (ervachinines A-D) were identified that caused lysosome enlargement in C. elegans macrophage-like cells. Intriguingly, these compounds triggered cell death in the germ line independently of the canonical apoptosis pathway. In mammalian cells, ervachinines A-D induced lysosomal enlargement and damage, leading to leakage of cathepsin proteases, inhibition of autophagosome degradation and necrotic cell death. Further analysis revealed that this ervachinine-induced lysosome damage and lysosomal cell death depended on STAT3 signaling, but not RIP1 or RIP3 signaling. These findings suggest that lysosome-damaging compounds are promising reagents for dissecting signaling mechanisms underlying lysosome homeostasis and lysosome-related human disorders.


Asunto(s)
Animales , Humanos , Alcaloides , Farmacología , Caenorhabditis elegans , Biología Celular , Metabolismo , Muerte Celular , Supervivencia Celular , Células HeLa , Lisosomas , Patología , Factor de Transcripción STAT3 , Metabolismo , Transducción de Señal
11.
China Pharmacy ; (12): 1693-1696, 2018.
Artículo en Chino | WPRIM (Pacífico Occidental) | ID: wpr-704872

RESUMEN

OBJECTIVE:To observe therapeutic efficacy and safety of prucalopride in the treatment of chronic constipation (CC). METHODS:Totally of 100 CC patients were selected from anorectal department of our hospital during Jun. 2016-Jan. 2017, and then divided into control group and observation group according to random number table,with 50 cases in each group. Control group was given Mosapride citrate tablets 5 mg +Lactulose oral solution 10 mL orally,3 times a day. Observation group was given Prucalopride succinate tablets 2 mg orally,once a day. Both groups were treated for consecutive 4 weeks. Clinical efficacies of 2 groups were observed,and the levels of serum inflammatory factors(IL-6,TNF-α,IFN-γ)and colonic transit time(total colonic transit time,left colonic transit time,right colonic transit time,rectosigmoid colonic transit time)were observed before and after treatment. The occurrence of defecation disorders and ADR were recorded. RESULTS:None of patient in 2 groups was cured. Total response rate of observation group was 94.00%,which was significantly higher than 78.00% of control group,with statistical significance (P<0.05). Before treatment,there was no statistical significance in the levels of serum inflammatory factors or colonic transit time (P>0.05). After treatment,the levels of IL-6 and IFN-γ in control group,the levels of IL-6,TNF-α and IFN-γ in observation group were decreased significantly,and the levels of IL-6,TNF-α and IFN-γ in observation group were significantly lower than those of control group;the colonic transit time in 2 groups was shortened significantly,and observation group was significantly shorter than control group,with statistical significance (P<0.05). After treatment,the incidence of defecation,incomplete emptying,sense of obstruction and sense of rectal tenesmus in observation group were significantly lower than control group,with statistical significance(P<0.05). There was no statistical significance in the incidence of sense of rectal tenesmus after treatment or ADR between 2 groups (P>0.05). CONCLUSIONS:Compared with traditional plan of mosapride combined with lactulose,prucalopride can more effectively reduce the levels of serum inflammatory factors,shorten colonic transit time,reduce the occurrence of defecation disorders as defecation and incomplete emptying,with equivalent safety.

12.
China Occupational Medicine ; (6): 681-685, 2018.
Artículo en Chino | WPRIM (Pacífico Occidental) | ID: wpr-881733

RESUMEN

OBJECTIVE: To investigate the role of cyclophilin A in the foaming process of macrophages induced by free silica( SiO_2). METHODS: The human peripheral blood mononuclear cell THP-1 in the logarithmic growth phase was induced and differentiated into human macrophages with phorbol 12-myristate 13-acetate at 100 μg/L for 48 hours. The cells were divided into 4 groups. The cells in the blank control group were not treated. The cells in the oxidized low-density lipoprotein( ox-LDL) control group were treated with a final concentration of 50 mg/L ox-LDL. The cells of 50 mg/L SiO_2 group were treated with 50 mg/L of SiO_2 and ox-LDL. The cells of 100 mg/L SiO_2 group were treated with 100 mg/L of SiO_2 and 50 mg/L of ox-LDL. After treatment of cells for 48 h,cell viability was measured by MTS method. The lipid accumulation of cells was observed by oil red O staining and colorimetric method; the expression of cyclophilin A in cell supernatant was detected by enzyme-linked immunosorbent assay,and the expression of cyclophilin A in the cells was detected by Western blotting. RESULTS: The cell viability was the highest when the concentration of SiO_2 was 100 mg/L compared with the control and other four SiO_2groups( P < 0. 01). The cell foaming change in the 100 mg/L SiO_2 group observed by oil red O staining significantly increased compared with the blank control group. The expression of total cholesterol,free cholesterol increased in the ox-LDL control group,50 mg/L SiO_2 group and 100 mg/L SiO_2group( P <0. 05),and the cholesterol specific gravity increased( P < 0. 05) compared with the blank control group,meanwhile the expression of cyclophilin A in the cell supernatant increased( P < 0. 05),and the expression in the macrophages cells decreased( P < 0. 05). CONCLUSION: Cyclophilin A is involved in the foaming process of macrophages induced by SiO_2.

13.
Artículo en Chino | WPRIM (Pacífico Occidental) | ID: wpr-615466

RESUMEN

Objective To explore a novel strategy to repair traumatic soft tissue defects in the head and face by tissue expansion in the early stage.Methods Eighteen patients with traumatic soft tissue defects were treated with thorough debridement leaving the wound unclosed or simply closed with thin split-thickness scalp skin grafting,and adjacent expander implantation in the early stage and expanded flap transposition in the second stage.Results There were 11 male patients and 7 female patients ranging in age from 3.5 to 40 years [mean,(19.4±12.2) years],with average 15 months follow-up (range,3-67 months).The average expansion time was 74.3 days (range,53-96 days).The total of 18 patients with 22 expanders were treated with satisfactory results.All the flaps survived and the skin color,texture and contour well matched to those of the peripheral tissue.Only one complication of infection happened in the 18 cases (5.56%) and total 22 expanders (4.55%),which was similar to the rate reported in the literature.There were no any other complications related to the expander.Conclusions Debridement and tissue expansion in the early stage have been proved a more effective strategy to repair traumatic soft tissue defects in the head and face,which can not only achieve satisfactory color,unbulky and well matched texture similar to normal,but also can avoid unnecessary donor site injuries and does not increase the infection rate of tissue expansion.

14.
Artículo en Chino | WPRIM (Pacífico Occidental) | ID: wpr-353124

RESUMEN

<p><b>OBJECTIVE</b>To investigate the therapeutic effect of facial artery perforator flap for the soft tissue defects at nose, lip and cheek.</p><p><b>METHODS</b>The facial artery perforator adjacent to the defect was identified by Doppler ultrasonography. The perforator flap was designed according to the defect location, size and shape. The subcutaneous tissue around the perforator was kept as much as possible to protect the venous drainage.</p><p><b>RESULTS</b>From Oct. 2012 to Oct.2013, 26 cases were treated with facial artery perforator flaps, with 9 cases of nasal defects, 10 cases of lip defects and 7 cases of buccal defects. The defects size ranged from 1.5 cm x 2.0 cm to 3.0 cm x 3.0 cm and the flaps size ranged from 2.0 cm x 2.5 cm to 3.5 cm x 3. 5 cm. Superficial necrosis(3mm in width) happened at the end of one flap. All the other 25 flaps survived completely. 16 cases were followed up for 3 months to 2 years with no relapse and satisfactory cosmetic and functional results were achieved.</p><p><b>CONCLUSIONS</b>Both cosmetic and functional effect can be achieved with facial artery perforator flap for defects at nose, lip and cheek.</p>


Asunto(s)
Humanos , Arterias , Mejilla , Cirugía General , Supervivencia de Injerto , Labio , Cirugía General , Nariz , Cirugía General , Colgajo Perforante , Trasplante , Rinoplastia , Métodos
15.
Chinese Medical Journal ; (24): 511-517, 2014.
Artículo en Inglés | WPRIM (Pacífico Occidental) | ID: wpr-317953

RESUMEN

<p><b>BACKGROUND</b>Cigarette smoke induced airway inflammation plays a role in pathogenesis of airway inflammation. Resolvin-D1 derived from omega-3 polyunsaturated fatty acids is an endogenous anti-inflammatory and proresolving lipid mediator. Resolvin-D1 ameliorated inflammatory responses in lung injury, asthma, peritonitis and atherosclerosis. We investigated whether resolvin-D1 suppressed the productions of chemokines and oxidative stress induced by cigarette smoke extract (CSE) in vitro and its possible mechanism.</p><p><b>METHODS</b>We examined the proinflammatory chemokine interleukin-8 and hydrogen peroxide (H2O2) productions induced by CSE in 16 human bronchial epithelial (16HBE) cells after resolvin-D1 treatment and their mechanisms. 16HBE cells were treated with resolvin-D1 at up to 10 nmol/L, for 30 minutes before CSE up to 16% (v/v) exposure. Release of interlukin-8 proteins was assessed by enzyme linked immunosort assay (ELISA) and its mRNA level by RT-PCR. We evaluated extracellular H2O2 expression in the supernatant. Phosphorylation of NF-κB/p65 and degradation of I-κB in 16HBE cells were determined by Western blotting analysis and NF-κB DNA binding activity by electrophoretic mobility shift assay (EMSA).</p><p><b>RESULTS</b>16HBE cells treated with 8% CSE showed significantly higher interlukin-8 production. Resolvin-D1 pretreatment inhibited CSE induced interlukin-8 production (mRNA and protein) in a dose and time dependent manner. Extracellular H2O2 level decreased after resolvin-D1 treatment. Resolvin-D1 attenuated CSE triggered I-κB degradation and NF-κB/p65 activation dose dependently and inhibited NF-κB DNA binding activity.</p><p><b>CONCLUSION</b>Resolvin-D1 inhibits CSE induced interlukin-8 and H2O2 production in 16HBE cells by modulating NF-κB activation and has therapeutic potential for pulmonary inflammation.</p>


Asunto(s)
Humanos , Western Blotting , Línea Celular , Supervivencia Celular , Ácidos Docosahexaenoicos , Farmacología , Ensayo de Cambio de Movilidad Electroforética , Ensayo de Inmunoadsorción Enzimática , Peróxido de Hidrógeno , Metabolismo , Interleucina-8 , Metabolismo , FN-kappa B , Metabolismo , Reacción en Cadena de la Polimerasa de Transcriptasa Inversa , Fumar
16.
Artículo en Chino | WPRIM (Pacífico Occidental) | ID: wpr-392868

RESUMEN

, but the amount decreased significantly. Conclusions Peri-operative nursing can promote the recovery of patients with pelvic floor hernia, rectal prolapse combined with colonic slow transit constipation.

17.
Artículo en Chino | WPRIM (Pacífico Occidental) | ID: wpr-561323

RESUMEN

Objective:To construct an adenovirus vector harboring human basic fibroblast growth factor (bFGF) cDNA and investigate the expression of bFGF in human umbilical vein endothelial cells (HUVEC) in vitro. Methods: The adenovirus expression vector Ad5-bFGF was constructed by homologous recombination technique. The best value of MOI was tested by transfecting human umbilical vein endothelial cells (HUVEC) with Ad5-GFP. Ad5-bFGF was used to transfect HUVEC at the obtained value of MOI and the expression of bFGF protein was detected by immunocytochemistry method and Western blotting. Results: The best value of MOI for adenovirus 5 to transfect HUVEC was 200 and the transfection rate was 90%. Immunocytochemistry method and Western blotting showed that bFGF was expressed in HUVEC after transfection with Ad5-bFGF and the expression was significantly higher than that in untransfected HUVEC (P

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