1.The changes of force transmission to the ulnar after gradual resection of the horizontal portion of the triangular fibrocartilage complex:an experimental study
Jifeng HUANG ; Yongnian XU ; Weidong ZHAO
Chinese Journal of Orthopaedics 2001;0(08):-
0.05). Removal of two thirds or the entire horizontal portion of the TFCC caused a statistically significant difference in the percentage of force transmitted through the ulna compared with the intact force data (t=3.4,P
2.Comparative study of serum and synovial fluid monokine levels in patients with juvenile spondyloarthropathies and their clinical significance
Wei ZHAO ; Feng HUANG ; Ming XU
Chinese Journal of Rheumatology 2000;0(06):-
Objective To determine the monokine levels of serum and synovial fluid (SF) in patients with JSpAs and estimate the correlation between monokines and inflammatory indices.Methods Serum and SF monokines (IL 1?,IL 1?,IL 6,IL 8,IL 12 and TNF ?) were measured by sandwich ELISA in patients with JSpAs ( n =28) and healthy controls ( n =10).The correlation between serum monokines and inflammatory indeces and between both serum and SF monokine levels was analysed.Results Elevated serum level of IL 6 was found in patients with JSpAs as compared to healthy controls ( P
3.Variation of subsets of myeloid derived suppressor cells and their ratio in septic mice
Hui WANG ; Qingyu ZHAO ; Zhaofeng HUANG ; Mei ZHAO ; Xiaoxie XU
Chinese Critical Care Medicine 2016;(2):147-152
Objective To investigate the dynamic variation of subsets of myeloid derived suppressor cells (MDSC) and their ratio in septic mice, and to discuss their role in the development of sepsis. Methods Male C57BL/6 mice were randomly divided into sepsis model group and sham group according to random number table. Polymicrobial sepsis was induced by using cecal ligation and puncture (CLP), while mice in sham group only underwent laparotomy and laparorrhaphy without CLP. Thirty mice in each group were used to observe living condition, and the 20-day survival rate was compared between the two groups. In addition, subsets of MDSC in peripheral blood, spleen and bone marrow were analyzed with flow cytometry for other 60 mice (12 mice at each time point, as 0, 3, 7, 12 and 20 days). Spleens were harvested at 7 days for weighing, and single cell suspension of spleen tissue was prepared for splenocyte counting. Histopathologic changes in spleen tissue and liver tissue were observed under light microscope after hematoxylin and eosin (HE) stain. Results ① No mice died in sham group within 20 days after the operation. On the other hand, 10 mice in model group died within 20 days, and the difference in survival rate between the two groups was statistically significant (100.0% vs. 66.7%, χ2 = 11.861, P = 0.001). ② The spleens in model group showed obvious enlargement and significantly outweighed as compared with those in sham group (mg: 413.33±41.63 vs. 111.67±17.56, t = 11.564, P = 0.000), and the total count of splenocytes was significantly higher than that in sham group (×109/L: 21.20±2.43 vs. 1.87±0.06, t = 13.578, P = 0.005). ③ Pathological sections with HE staining showed that the liver tissue and spleen tissue remained normal in sham group. In model group, the hepatic tissue showed acute inflammatory reaction, including tissue disruption, capillary congestion, infiltration of neutrophils, marked edema of hepatocytes and focal hepatocellular necrosis. Abnormalities were also found in the spleen tissue: the red pulp and white pulp were disordered, splenic sinus was congested with numerous red cells, the splenic capsule thickened, immature myeloid cells with circular nuclei proliferated in the subcapsular region and perivascular region, splenic cord and splenic sinus were infiltrated with a large number of hematopoietic cells. ④ No significant changes in the monocytic MDSC (M-MDSC) and granulocytic MDSC (G-MDSC), and their ratio were found in peripheral blood, spleen and bone marrow at every time point in sham group. On the other hand, in model group, the ratio of M-MDSC and G-MDSC was continuously increased in peripheral blood, spleen and bone marrow, and M-MDSC only slightly decreased at 20 days. On the other hand, the ratio of M-MDSC/G-MDSC rose at first followed by a decrease. The ratio of M-MDSC/G-MDSC in peripheral blood was higher than 1 from 3 days after the operation, reaching the peak at 12 days (compared with 0 day: 4.16±0.53 vs. 0.79±0.11, P < 0.05), while the ratio of M-MDSC/G-MDSC in spleen and bone marrow after CLP were lower than 1 at all time points, reaching the peak on 7 days after the operation (compared with 0 day: 0.70±0.06 vs. 0.25±0.02 in spleen, 0.39±0.06 vs. 0.11±0.01 in bone marrow, both P < 0.05), and then gradually decreased afterwards. Conclusion Subgroups of MDSCs were continuously aggregated in the peripheral blood, spleen and bone marrow, and their ratio rose first and decreased afterwards along with the development of sepsis, and the changes may reflect the change of immune status at different stages of sepsis.
4.Follicular Occlusion Triad:a Case Report and Pedigree Analysis
Wei XU ; Junying ZHAO ; Hui ZHAO ; Fei GU ; Xiaoming HUANG
Chinese Journal of Dermatology 1995;0(03):-
Objective To study the clinical features of follicular occlusion triad, and whether it is a hereditary disease. Methods Based on the clinical examination of a case who developed squamous cell carcinoma secondary to follicular occlusion triad, the pedigree of the patient was surveyed and analyzed. Results There were a total of thirteen patients in this pedigree, the age of onset was about 20 years old. The clinical features and laboratory examination of the proband was consistent with follicular occlusion triad. Conclusions Hereditary factor is important in the pathogenesis in follicular occlusion triad,and the disease maybe an autosomal dominant inherited disease.
5.Comparison of myocardial injures between asphyxia and ventricular fibrillation models of cardiac arrests
Yumin HE ; Shen ZHAO ; Zitong HUANG ; Xiangshao FANG ; Wen XU
Chinese Journal of Emergency Medicine 2015;24(1):28-32
Objective To compare the difference in cardiac injuries between asphyxia and ventricular fibrillation modes in different periods after cardiac arrest (CA).Methods The model was established in Cardiopulmonary Resuscitation Lab,Sun Yat-sen University.A total of 35 male SD rats were used to produce the asphyxia or ventricular fibrillation (VF) cardiac arrest models randomly.Both of the two modes were induced 8 minutes cardiac arrest.The myocardial HE stains,mitochondrial respiratory control ratio (RCR),and echocardiography were observed at 4 h,24 h and 72 h after ROSC (restoration of spontaneous circulation).The results were expressed as (-x ± s),t test was performed to compare between two groups,and one way analysis of variance was used to compare multiple groups.P < 0.05 was considered as significant difference.Results HE stains showed damages were more serious in the VF mode than in asphyxia mode at 4 h,and both of them had a disorderly-arranged myocardium at 72 h.RCR in VF mode became worse at 4 h,and RCR resumed at 24 h in both modes without significant difference compared with the sham operated rats.The echocardiography showed VF mode had a lower left ventricular ejection fraction (LVEF) than asphyxia mode at 4 h (29.68% vs.42.16%,P =0.03),and there was no difference in LVEF between VF mode and the sham operated rats at 24 h,however no difference in LVEF between the asphyxia and sham operated rats at 72 h.Both of them had a thicker left ventricular anterior wall than the sham operated rats at 72 h (2.41 mm vs.1.72 mm,P=0.013; 2.61 mmvs.1.72 mm,P=0.007),and there was no significant difference between them.Conclusions The ventricular fibrillation mode has a more severe injuries in early period,but it recovers sooner than asphyxia one.Both of two groups get compensatory left ventricular hypertrophy in later period of ROSC.
6.The posterior parietal cortex in visuospatial attention:study with continuous theta burst stimulation
Guangqing XU ; Yue LAN ; Zhenghong CHEN ; Jiangli ZHAO ; Dongfeng HUANG
Chinese Journal of Physical Medicine and Rehabilitation 2013;35(9):687-690
Objective To seek more direct evidence of the role of the posterior parietal cortex (PPC) in controlling visuospatial attention.Methods Forty healthy subjects took the Attention Network Test following continuous theta burst stimulation (cTBS) applied over the left or right PPC or sham stimulation.The Attention Network Test measures the alerting,orienting and executive control components of visual attention separately.Results Subjects responded to spatial cues significantly slower after cTBS.Alerting and orienting showed deficits after cTBS over the right PPC.cTBS over the left PPC resulted in significant improvements in alerting,but not in the orienting.Furthermore,there were significant differences in the alerting and orienting indices between cTBS over the left and right PPC,but not in the executive control index.Conclusions The results suggest that the right PPC is associated with spatial orienting and the alerting function.The findings supported the theory of inter-hemispheric competition for visuospatial attention.Visuospatial attention bias might be selectively modulated through cTBS.
7.Effect of apigenin on hippocampus neuron injury induced by A?-amyloid 25-35
Yuhong ZHAO ; Ren HUANG ; Jie XU ; Yao XIE
Chinese Pharmacological Bulletin 2003;0(08):-
Aim To explore the effects of apigenin on A?_ 25-35 induced injury in primary cultured hippocampal neurons.[WTHZ]Methods[WTBZ] The primary cultured hippocampal neurons were exposed to 10 ?mol?L-1 A?_ 25-35 for 24 h after pretreatment with the apigenin of concentrations of 5,10,20,40 ?mol?L-1 for 2 h;then the survival rate of hippocampal and SOD activity were examined;we also analysed the expression of apoptosis-related gene bcl-xl with Western blot.Result The survival rate of hippocampal neurons were decreased after pretreatment with 10 and 20 ?mol?L-1 apigenin for 2 h,the increases of Mn-SOD activity and bcl-xl protein expression were also observed.Conclusion Apigenin has the bioactivity of protecting the neuron from cytoxic induced by A?_ 25-35 in cultured hipocampal neurons as estrogen.The mechanism is likely related with activating the SOD and increasing bcl-xl protein expression,which plays a pivotal role in protecting cells from apoptosis.
9.Professor OUYANG Hui-qing's explorations and practice on teaching of traditional Chinese medicine
Yaqi LIAO ; Songping LUO ; Jieming HUANG ; Limian XU ; Ying ZHAO
Chinese Journal of Medical Education Research 2013;(1):51-55
Professor OUYANG Hui-qing's gradually formed her own teaching concept of traditional Chinese medicine through long-term teaching practice:the most important teaching aim is to cultivate talents of traditional Chinese medicine.Clinical practice together with classroom teaching can promote the growing knowledge of medical students.Clinical practices are necessary and should penetrate culture and academic tradition of traditional Chinese medicine.OUYANG Hui-qing's concepts on talents are:cultivating teaching faculties is the key to the development of the teaching team,the core of construction of the teaching and research section,and the basis of construction of the discipline.OUYANG Hui-qing's management concepts are:the dean of the teaching and research section is the practitioner of personnel training practice and the undertaker of teaching team development.
10.Practice and effect of nursing safety management for indwelling catheters
Linzhen XU ; Jiong HUANG ; Xiangying PAN ; Xuehong ZHAO
Chinese Journal of Nursing 2010;45(5):448-449
Objective To investigate the methods of nursing safety management for indwelling catheters. Methods The nursing safety management measures included the establishment of three-level monitoring network of safety management for indwelling catheters,standardization of 25 kinds of catheter identification cards,formulation of prevention procedure and reporting system of catheter extrusion,design of catheter management handbook,organization of training and examination on the relative skills for nurses. Results Nurses' safety awareness of indwelling catheters was strengthened. And nurses could distinguish different catheters promptly and provide efficacious and safe nursing services. There was no nursing error,nursing dispute and patient complaints towards nursing care of indwelling catheters. Conclusion The implementation of nursing safety management for indwelling catheters can ensure medical and nursing safety,and promote the continuous improvement of quality of nursing.