1.Gottron papules and interstitial lung disease in patients with dermatomyositis
Chinese Journal of Dermatology 2009;42(1):19-21
Objective To assess the relationship between Gottron papules and interstitial lung disease (ILD) in patients with dermatomyositis. Methods Clinical data were retrospectively collected from 83 patients with dermatomyositis (DM), who were classified into two groups based on the presence of Gottron papules. Results The prevalence of Gottron papules and ILD was 59.0% and 42.2%, respectively in these patients. A significant difference was observed in the incidence of ILD between patients with and without Gottron papules (24.5% vs 67.6%, P<0.01). In the patients with ILD, the average value of diffusing capacity of the lung for carbon monoxide (DLCO) in those without Gottron papules was significantly lower than that in those with Gottron papules (60.9±13.5 vs 72.3±12.7, t=2.427, P<0.05). No significant difference was observed between the patients with Gottron papules and those without in muscle strength (4.0±0.9 vs 3.8±1.2), the level of serum creatine phosphokinase (1047.9±1402.7 IU/L vs 1359.7±1752.4 IU/L), lactic acid dehydrogenase (397.2±226.5 IU/L vs 402.4±197.0 IU/L), aspartate aminotransferase (97.6±98.0 IU/L vs 120.1±82.3 IU/L),C reactive protein (11.9±8.3 mg/L vs 15.5±9.8 mg/L), erythrocyte sedimentation rate (26.5±16.4 mm/l h vs 33.3±25.3 mm/l h), the incidence of muscle tendemess (63.3% vs 70.6%) or malignant melanoma (21.4% vs 6.5%). Conclusions Patients presenting Gottron papules tend to show a decreased incidence and severity of ILD. No significant association was observed between the presence of Gottron papules and the degree of muscle changes or dermatomyositis activity, and the presence of Gottron papules seems to have no obvious relationship to the development of malignant melanoma.
2.Acupuncture benefits the motor function of strokes with somnipathy at early stage
Chinese Journal of Rehabilitation Theory and Practice 2000;6(2):72-75
patients with steady vital signs and affected by combined somnipathy at the early stage of stroke were divided into three groups according to the date of admission:the experimental group(Group E)and the control groups(Group C1 and Group C2).The rehabilitation programs to all patients are the same,except the somnipathy,(1) patients of Group E were adopted the method of acupuncture and moxibustion coupled with taping and pressing their ear acupuncture points to improve their quality of sleep,(2) patients of Group C1 were asked to administer orally the traquilizers,and (3) no interference was conducted to the patients of Group C2.After 8 weeks of treatment,it is found that,(1) the speed of recovery of the motor function of the patients of both Group E and Group C1 is faster than that of Group C2 (P<0.01).(2) The total sleeping hours of Group E is significantly compared with that of Group C1(P<0.05).This shows that the long-term effects of the acupuncture therapy on sleep are superior to that of the tranquilizer.It suggests that the acupuncture therapy is an improtant method to treat the sequelae and syndrome of stroke.
3. Expression of fatty acid synthase in lung cancer and its clinical significance
Tumor 2007;27(7):557-561
Objective: Much evidences demonstrate that the fatty acid synthase (FAS) plays an important role in the intiation and progression of various cancers and signs of poor prognosis. But it is not clear whether there is relationship between FAS protein and mRNA expression and lung cancer. The aim of this study was to explore the expressions of FAS protein and mRNA in lung cancer and to analyze its association with clinicopathological features. Methods: Immunohistochemical En Vision™ staining and reverse transcription polymerase chain reaction (RT-PCR) were performed to determine the protein and mRNA expressions of FAS in 67 cases with lung cancer and compared with para-cancerous and normal tissues. Results: The expressions of FAS protein was located in cell cytoplasm. The immunohistochemical EnVisionTM staining showed that the positive rate of FAS protein was 41.8% (28/67)in lung cancer tissue, which was significantly higher than para-cancerous tissue (19.5%, 8/41) and normal tissue(6.25%, 2/32) (P < 0.01). The expressions of FAS mRNA was positive in 67.2% (45/67) of lung cancer tissue, which was also significantly higher than para-cancerous tissue (34.1%, 14/41) and normal tissue (25.0%, 8/32) (P < 0.01). The relative level of FAS mRNA in lung cancer tissues was significantly higher than para-cancerous tissue and normal tissue (0.957 ± 0.326 vs 0. 475 ± 0. 167 and 0.261 ± 0.050, P < 0.01). The expressions of FAS protein and mRNA significantly correlated with the stage and lymph node metastasis (P < 0.01), but had no significant correlation with age, sex, pathological type, and cell differentiation degree. Conclusion: FAS protein and mRNA are over expressed and hyperactivated in lung cancer indicating abnormal fatty acid metabolism during the initiation and development of cancer. FAS can be considered as a valuable marker for diagnosis of lung cancer or serves as a new target for lung cancer therapy.
4.Effects of nanonetwork topography on bone marrow mesenchymal stem cell bioactivity
Zheng RUAN ; Qingshui YIN ; Yu ZHANG
Chinese Journal of Tissue Engineering Research 2014;(25):3987-3992
BACKGROUND:Many studies have shown that different nanostructures produce different influences on cellbioactivity, but the nanonetwork structure is not reported yet. OBJECTIVE:To study the influence of the nanonetwork topography on the bioactivity of bone marrow mesenchymal stem cels. METHODS:The nanonetwork topography was fabricated on biomedical titanium surface by alkali-heat treatment, and pure titanium served as control group. Bone marrow mesenchymal stem cels were co-cultured with the above two types of samples. cellmorphology and cytoskeleton were observed using scanning electron microscope and immunofluorescence method. The celladhesion, proliferation and osteogenic differentiation were detected by measurement of absorbance values at different culture time. RESULTS AND CONCLUSION: The nanonetwork topography had significant advantage on the number of adherent cels at 30, 60 and 120 minutes of co-culture. The cellproliferation was significantly accelerated by the nanonetwork topography at days 1, 3, 5 of co-culture, and the absorbance values in the nanonetwork group were significantly higher than those in the pure titanium group (P < 0.05). The alkaline phosphatase activity in the nanonetwork group was also significantly higher than that in the pure titanium group at 14 days of osteogenic induction (P < 0.05). The cellshape and cytoskeleton on the nanonetwork surface were better than those on the titanium surface. These findings indicate that the nanonetwork topography has better effects on cellbioactivity compared with pure titanium.
5.Development of articular cartilage repair technique
Zheng RUAN ; Qingshui YIN ; Yu ZHANG
Chinese Journal of Tissue Engineering Research 2014;(29):4724-4729
BACKGROUND:Autologous cartilage has a poor self-repair effect due to low chondrocyte density, low metabolism rate and no blood supply.
OBJECTIVE:To summarize the recent study about tissue engineering techniques and surgical treatment for cartilage injury.
METHODS:A computer-based online retrieval of PubMed database was performed by the first author for articles published between January 1992 and December 2013. The key words are“articular cartilage, injury, tissue engineering, repair”in English. According to the inclusion and exclusion criteria, 61 literatures were included into the final analysis.
RESULTS and CONCLUSION:The current clinical treatment of articular cartilage injury includes joint debridement, mosaicplasty, perichondrium transplantation and autologous chondrocyte implantation. However, their long-term result is unsatisfactory. One reason for limited clinical success is that new cartilage can be formed at the site of a defect, and the repaired tissue canot compare with the autologous cartilage in mechanical property. Tissue engineering technique is stil a hot topic in recent years, because it can potential y induce autologous cartilage formation. Through endogenous or ectogeneous seed cells and inducting factor and nutrient factors, tissue engineering technique can be applied to induce the self-repair of articular cartilage, thus regenerating into hyalinc cartilage with the similar even same biological property. How to simplify the treatment protocols and reduce treatment cost is the key to promote cartilage repair.
6.Effect of erigeron on intercellular adhesion molecule-1 and its mRNA expression during cerebral ischemia and reperfusion in rats
Zheng XUE ; Xuesong WANG ; Xuzhong RUAN
Chinese Journal of Pathophysiology 2000;0(12):-
AIM: To investigate the effect of erigeron on intercellular adhesion molecule-1 (ICAM-1) and mRNA expression during cerebral ischemia/reperfusion. METHODS: The rat models of middle cerebral artery (MCA) focal cerebral ischemic reperfusion were established with the suture method in the study. The ICAM-1 mRNA and protein expression were measured by RT-PCR and immunohistochemistry techniques, respectively. RESULTS: By down-regulating the expression of ICAM-1 protein and mRNA and alleviating inflammation in cerebral ischemic region, erigeron exerted a protective effect in cerebral ischemia and reperfusion. CONCLUSION: The results suggest that erigeron protects the brain against cerebral ischemia and reperfusion injury via inhibiting ICAM-1 expression. [
7.Relationship between Concentration of t, t-2, 4-DDE in Cooking Oil Fume and Cooking Temperature
Jianrong CHAI ; Zheng RUAN ; Zhongbo YU
Journal of Environment and Health 2007;0(10):-
Objective To explore the relationship between the concentration of t, t-2, 4-DDE in cooking oil fume(COF) and the cooking temperature. Methods The temperature control system of oil heating was developed, the activated carbon was used to collect gaseous pollutants. Six samples were prepared at 60, 90, 120, 150, 180, 210, 240 and 270 ℃. The concentration of t, t-2, 4-DDE in COF was analyzed by GC-FID. Results The concentration of t, t-2, 4-DDE in COF was below the detection limit when the oil temperature was not higher than 120 ℃. Among the 150 ℃ and 270 ℃ groups, the concentration of t, t-2, 4-DDE showed a significant increase. Conclusion The concentration of t, t-2, 4-DDE in COF may obviously increase as the cooking temperature is not lower than 150℃.
8.Clinical significance of fatty acid synthase in non-small cell lung cancer
Zheng RUAN ; Tianfang HUA ; Shouxing PENG
China Oncology 2001;0(05):-
Purpose:To explore the expression of fatty acid synthase in non-small cell lung cancer and to detect its association with clinicopathological features and prognosis.Methods:107 patients with NSCLC who underwent surgery were followed up for more than 5 years.Fatty acid synthase were evaluated by immunohistochemisctry on formalin fixed paraffin embedded tissues and compared with benign lesion and normal tissue.Multiple clinical parameters and survival were analyzed.Results:In 107 patients with NSCLC,FAS expression was observed in 43 cases(40.2%).In contrast to benign lesions and normal tissue,FAS is significantly overexpressed in NSCLC.Survival analysis revealed that the 5-year survival rate was lower in FAS positive patients than in negative patients(16% vs 43%,p
9.The experience of gasless laparoscopic surgery using Home-made Abdominal-wall-take-up
Zheng XIA ; Jingde RUAN ; Xiaobo ZHANG
Journal of Clinical Surgery 2002;0(S1):-
Objectives To sum up the experience of the gasless laparoscopic surgery using home-made abdominal-wall-take-up.Methods Using home-made abdominal-wall-take-up application on 15 patients,including 12 cholecystectmy,3 appendectomy.Every patients was used epidural block.Results All the surgery were successed and every patients had no complication.The hospitalization was 4~40 days (average 13.6 days),the time of operation was 50 to 215 minutes (average 89 minutes), fee of hospitalization was 5487 yuan.Conclusions It conclude that the gasless laparoscopic surgery using home-made abdominal-wall-take-up application is a safe,economic,useful method,which adapts to the situation of China.It reinforces the gas laparoscopic surgery.
10.Effects of treatment with milkvetch root and red sage root injections on changes in blood viscosity and renal function in patients with early diabetic nephropathy
Xueling RUAN ; Xiuwei ZHANG ; Dongwen ZHENG
Chinese Journal of Practical Internal Medicine 2001;0(02):-
Objective To investigate the influence of treatment with milkvetch root and red sage root injections on changes in blood viscosity and renal function in patients with early diabetic nephropathy(EDN).Methods 160 patients with EDN were randomly divided into two groups.The control group (n=80) was treated with conventional therapy for diabetes,and the treatment group (n=80) was treated with milkvetch root injection combined with red sage root injection based on conventional therapy for 4 weeks.Results After the above-mentioned therapy the parameters of blood viscosity were significantly decreased(P