Objective To compare gene express difference ofkeloid and normal skin tissues by using the suppression subtractive hybridization (SSH) so asto find the differential express gene in keloid. Methods mRNA extracted fromkeloid and normal skin tissues was used as the template to synthesis cDNA of keoid and normal skin. The cDNA of keloid served as a tester, the cDNA of normal skin as a driver. cDNA was digested with RsaⅠ. Adaptor-ligated tester cDNA was prepared. Then first hybridization, second hybridization and PCR amplificationwere done. Differentially expressed cDNA was selectively amplified during thesereactions. After SSH, the PCR mixture was ligated with T-vector. The positive clones were selected and the insert gene fragments were analyzed. Southern hybridization identified the keloid differential express genes. The positive clones ofSouthern hybridization were selected, and these sequences were analyzed. The results were compared with that of GeneBank. Results Thirteen differential genes were found in keloid, of which 11 gene clones have been known their function, and 2 clones have not known their function. 〖WTHZ〗Conclusion Keloid differentially expressed gene was screened successfully by SSH.
ObjectiveTo study the clinical effect of the combination of glucosamine hydrochloride with exercise therapy and traditional Chinese medicine hot compress in the treatment of early patellofemoral osteoarthritis. MethodsA total of 126 patients with early patellofemoral osteoarthritis treated between June 2013 and April 2015 were divided into group A (n=43), B (n=42) and C (n=41) with the method of random number table. Oral administration of glucosamine hydrochloride tablets, exercise therapy of knee joints and traditional Chinese medicine hot compress were applied for the 43 patients in group A. Oral administration of glucosamine hydrochloride tablets and exercise therapy of knee joints were applied for the 42 patients in group B. Exercise therapy of knee joints and traditional Chinese medicine hot compress were applied for the 41 patients in group C. Chen's Scoring was applied before the treatment and 2, 4, 12 and 24 weeks after the treatment. ResultsThe differences of Chen's scores at the time points after treatment and those before treatment of the same group had statistical significance (P<0.05). The differences of Chen's scores at the time points after treatment in group A and those in group B and C had statistical significance (P<0.05). There were no obvious adverse effects due to administration of glucosamine hydrochloride tablets in group A and B. Five patients in group A and 4 patients in group C suffered from the symptoms of local erythema, light cutaneous pruritus and other contact dermatitis after traditional Chinese medicine hot compress. Those symptoms disappeared automatically several hours later without any special treatment. ConclusionThe treatment of early patellofemoral osteoarthritis by the combination of glucosamine hydrochloride tablets with exercise therapy and traditional Chinese medicine hot compress can rapidly relieve joint pain, and maintain efficacy for a long time.
目的:探讨经肝动脉导管注射明胶海绵碘化油乳剂治疗肝癌合并严重动静脉瘘的可行性及临床应用价值。方法:对38例肝癌动静脉瘘患者血管分别行超选择插管注射明胶海绵碘化油乳剂,造影观察动静脉瘘的栓塞率,血管再通率,副作用,并发症及生存率等指标。结果:38例肝癌动静脉瘘患者经肝动脉导管注入明胶海绵碘化油乳剂约2~10mL栓塞,栓塞后造影显示闭塞率为94.7%(36/38),4周后造影显示动静脉瘘再通率为5.56%(2/36),未见确切不良反应,肿瘤碘化油乳剂沉积好,患者6月生存率为94.7%(36/38),12月生存率为60.5%(23/38),24月生存率为21.1%(8/38)。结论:经肝动脉导管注射碘化油乳剂治疗肝癌动静脉瘘安全可靠,对瘘口要求不高,栓塞率高,再通率低,肿瘤的栓塞治疗效果好。
Objective To observe barrier function changes of gut mucosa in rats with acute respiratory distress syndrome(ARDS)．Methods Forty SD rats were randomized to an experiment group (n：30)and a control group(n=10)．Oleic acid was injected via vena femoralis to establish ARDS ratmode1．Subgroups in the experiment group were randomly divided by time 30 min，2 h，4 h interval after injection(n=10 in each subgroup)．Concentration of D-lactate and endotoxin and activity of diamineoxidase in blood plasma were measured．Histopathological changes of small intestine were observed under light microscope．Results Compared with the control group，the activation of diamine oxidase in the experiment group was higher after 30 min of injection(Plt;0.01)．Concentration of D-lactate，the activity ofdiamine oxidase and endotoxin level in the experiment group were all elevated after 2 hours of injection(all Plt;0.05)，and further elevated after 4 hours．In the rats’villous interstitial after 2 hours of the injection，there were edema，hyperemia，and infiltration of neutrophils，eosinophils and lymphocytes．After 4 hours ofthe injection，the villous epithelium showed desquamation，necrosis，denaturalization and erosion，associated with infihration of lymphocytes and neutrophils in the mucosa．Conclusion In oleic acid-induced ARDS．permeability of gut mueosa increases and gut barrier is dysfunctional．
Objective To evaluate the subjective outcomes of sleepiness behavior and mood status applying continuous positive airway pressure（CPAP） in adults of elderly and middle-aged with obstructive sleep apnea syndrome（OSAS）. Methods Nine randomized controlled trails comparing nocturnal CPAP with inactive control appliances in adults with OSAS with the use of computerized search in related medical databases（MEDLINE，EMBASE，CBMdisk，etc） were included.The quality of literature was reviewed，and all data were extracted by two reviewers independently.Meta analysis was conducted used RevMan 4.2 software.Results 9 RCT involving 665 patients of elderly and middle-aged met the inclusion criteria.Meta analysis indicated that the score of Epworth sleepiness scale（ESS） and general health questionnaire-28（GHQ-28） declined significantly after CPAP treatment on effectiveness with WMD（random） －2.94，95 %CI －4.68 to －1.20，or WMD（fixed） －2.26，95 %CI －3.79 to －0.72，Plt;0.01.Nevertheless，hospital anxiety and depression scale（HADS） was not significantly different between CPAP and control with WMD（random） －0.89，95%CI －1.98 to 0.20，Pgt;0.05.Conclusion Current clinical evidence suggested that CPAP was effective in improving day-time subjective outcomes of sleepiness behavior and general mental health status in OSAS patients of elderly and middle-aged，although evidence of improving emotion disorder of anxiety and depression was not confirmed.
ObjectiveTo investigate the changes of autophage-related protein in lung tissues of rats with chronic obstructive pulmonary disease (COPD). MethodsPassive cigarette smoking was used to establish COPD model in rats. The mRNA and protein expressions of PI3K, total AKT, phosphorylated-AKT, total mTOR, phosphorylated-mTOR, and autophagy-related genes including LC3Ⅱ/Ⅰ, Beclin1, Atg5, Atg7, Atg12, P62 in lung tissues were measured by real-time PCR and Western blot. The autophagy level was compared between the COPD rats and the normal rats by LC3B immunohistochemistry. ResultsReal-time PCR analysis showed that the mRNA expressions of Beclin1, Atg5 and Atg12 significantly increased in lung tissues of the COPD rats compared with the normal rats (all P < 05). There was no significant difference between the COPD rats and the normal rats as for Atg7 mRNA expression (P > 0.05). Western blot analysis showed that the protein expressions of PI3K, p-AKT/AKT and p-mTOR/mTOR significantly decreased, the protein expressions of LC3 Ⅱ/Ⅰ, Atg5, and Beclin1 increased, and protein expression of P62 significantly decreased in lung tissues of the COPD rats compared with the normal rats (all P < 05). LC3B immunohistochemistry showed that the LC3B expression was higher in the COPD rats than that in the normal rats. ConclusionThe level of autophagy significantly increases in COPD rats with decreased expression of upstream proteins in autophagy signal pathway and increased expression of autophage proteins.
ObjectiveTo explore the cause of prosthesis dislocation after primary artificial hip replacement (AHR) and propose preventive measures. MethodsA total of 221 patients underwent artificial hip replacement from 2000 to 2012, among whom 8 developed dislocation. These cases were retrospectively analyzed to summarize the causes of dislocation and preventive measures were proposed. ResultsAmong 221 cases of hip replacement, 8 suffered from postoperative dislocation. All of them underwent posterolateral-approach total hip arthroplasty. The causes of dislocation included coexisting decreased muscle strength before operation, improper placement of the prosthesis during operation, inappropriate postural changes after operation, improper nursing and health education. Of the 8 dislocation cases, 2 were cured after reoperation and revision, 6 were cured through close reduction under anesthesia, and 7 were followed up for 1-5 years without relapse. ConclusionPreoperative assessment of the patients' soft tissue tension of affected hip and comorbid conditions, selection of proper design of prostheses and the components, removal of tissues possibly causing joint impact, correct placement of artificial prosthesis and components and instructing the patients for the correct movement mode of the affected hip after operation are all crucial for the prevention of postoperative hip dislocation.
Objective To study the effect of tumor necrosis factor-α( TNF-α) onhypermetabolism of skeletal muscle protein in rats with chronic obstructive pulmonary disease ( COPD) and explore its underlying mechanism. Methods Forty-five SD rats were randomly divided into a normal control group, a COPD group and a COPD + TNF-α group, with 15 rats in each group. COPD model was established by passive cigarette smoking in COPD group and COPD + TNF-αgroup. Then the extensor digitorium longus muscles ( EDL) were dissected and incubated in vitro muscle incubation system with adequate oxygen supply. The EDL were either cultured with or without recombinant rat TNF-α( 10 μg/L) . The mRNA and protein expressions of proteasome subunit C2 in EDL were quantified by real-time quantitative PCR and Western blot analysis, respectively. Results The mRNA and protein expressions of proteasome subunit C2 were both significant higher in the COPD group and COPD + TNF-αgroup than those in the normal control group( P lt;0. 01 or 0. 05) . The COPD+TNF-αgroup had higher expression of proteasome subunit C2 mRNA than that in the COPD group( P lt; 0. 01) , whereas the protein expression was not significantly different( P gt; 0. 05) . Conclusion Incresed proteolytic metabolism in skeletal muscle in COPD might be regulated by TNF-αactivated ubiquitin-dependent pathway.
Objective To investigate effectiveness of simplified all-arthroscopic Broström technique in treatment of chronic lateral ankle instability in adolescents. Methods A clinical data of 21 adolescent patients with chronic lateral ankle instability, who met the selection criteria and were admitted between June 2023 and May 2024, was retrospectively analyzed. There were 18 males and 3 females with an average age of 16.0 years (range, 13-18 years). There were 9 cases of left ankle joint injury and 12 cases of right ankle joint injury. Anterior talofibular ligament (ATFL) injury was diagnosed by arthroscopy in all patients. There were 11 cases of cartilage injury, 5 cases of avulsion fractures, and 6 cases of ankle impingement syndrome. The time from first sprain to operation ranged from 3-60 months (mean, 12.0 months). The ATFL was repaired and the ankle joint stability was restored by simplified all-arthroscopic Broström technique. Visual analogue scale (VAS) score, Tegner score, American Orthopaedic Foot and Ankle Society (AOFAS) score, Karlsson ankle function scale (KAFS) score, Foot and Ankle Outcome Score (FAOS) were used to evaluate ankle pain and function. MRI was used to evaluate the ligament healing. Results All patients were followed up 8-15 months (mean, 12.6 months). After operation, 1 patient suffered from superficial peroneal nerve injury, 1 patient developed anterior scar impingement on the ankle, 2 patients had superficial wound infection, and 1 patient suffered from sprain again. The VAS score, Tenger score, AOFAS score, KAFS score, and FAOS score significantly improved when compared with the preoperative scores (P<0.05). MRI examination showed the ligament healing and good tension. Conclusion For adolescent patients with chronic lateral ankle instability, using simplified all-arthroscopic Broström technique to repair ATFL can effectively alleviate ankle pain, improve stability, and achieve good effectiveness.