1.Research progress of diagnosis and treatment in primary breast diffuse large B-cell lymphoma
Journal of Leukemia & Lymphoma 2015;24(6):382-384
Primary breast lymphoma is a rare form of extranodal lymphoma with distinct characteristics.It comprises diverse histologic subtypes with diffuse large B-cell lymphoma (DLBCL) as the most common one.In this review,the primary breast DLBCL was focused and the definition,staging,the role of systemic chemotherapy,local adjuvant radiotherapy and rituximab in treatment of primary breast DLBCL were described.
2.Application of systematic training methods for new nurses in central sterile supply department
Bo KANG ; Na YOU ; Hongjuan YAO
Chinese Journal of Practical Nursing 2012;28(33):80-82
Objective To discuss the systematic training method for new nurses in central sterile supply department(CSSD),in order to improve the training effects of new nurses and special practice ability,and make them to be qualified for jobs in CSSD.Methods 18 new nurses in CSSD were divided into the control group and the experimental group with 9 nurses in each group.The experimental group adopted systematic training method combining with unit tests and comprehensive evaluation.The control group chose the traditional training method.The testing results were compared between two groups.Results The experimental group all passed through the unit evaluation and comprehensive evaluation,could work independently after the training,got excellent achievement in comprehensive assessment of the department after 3 months on-the-job,and could finish all the work and solve various emergencies.4 passengers failed in unit assessment in the control group,and 3 failed in the comprehensive evaluation.The average results in the experimental group were obviously higher than that of the control group.Conclusions Scientific training content,the systematic training method,comprehensive evaluation method can avoid the blindness and arbitrariness in training and improve training effect.The implementation of unit access system and post access system in standardized training of new nurses can improve the study enthusiasm and strengthen the risk and responsibility consciousness of nurses,which is beneficial to the growth of new nurses and professional value guidance.
3.Isokinetic muscle strength and endurance of trunk extensors and flexors in college students with different sport levels
Xiangjiang RONG ; Guijie YOU ; Hongen YAO
Chinese Journal of Tissue Engineering Research 2007;0(02):-
AIM:To detect the muscle strength and endurance of healthy young people with different sport levels using isokinetic testing technique,so as to explore the characteristics of trunk muscle function. METHODS:①120 volunteer freshmen of Grade 2005 including 60 males and 60 females were selected from Capital Institute of Physical Education,and were divided into three groups:general group,physical training group and second-class athlete group(n =40,half male and female). Cybex6000 isokinetic testing system(U.S.A) was used. ②The muscle strength of flexors and extensors trunk muscle was measured at 60?/second and 120?/second and the endurance at 120?/second. ③Peak torque,flexors/extensors peak torque ratio,endurance ratio and recovery ratio were evaluated. RESULTS:①The peak torque values of male extensors in 3 groups were higher than those of flexors;with the increase in testing velocity,the peak torque value of extensor and flexors was decreased,especially the extensor. The peak torque value of general group was lower than that of physical training group and second class athlete group(P 0.05). The change in peak torque value of female extensor and flexors was the same to males. The flexors/extensors peak torque ratio at 60?/second and 120?/second of males was less than 1,but females more than 1. ②Under the same testing velocity,the endurance ratio and recovery ratio of extensor in 3 groups were higher than those of flexors. CONCLUSION:Compared with physical training students and second class athletes,significant decrease in the waist and back muscle strength and unbalance of extensor and flexors strength are found in general students. The muscle strength and endurance of extensor in students with different sport levels are inferior to those of flexors.
4.New progress of pathogenesis in ventilator-induced lung injury
Yiyi YANG ; Shanglong YAO ; You SHANG
Chinese Critical Care Medicine 2016;28(9):861-864
Mechanical ventilation is not only an important treatment method of acute respiratory distress syndrome (ARDS),but also one of the basic treatments in the intensive care unit (ICU).However,mechanical ventilation itself can cause or aggravate acute lung injury,which is called ventilator-induced lung injury (VILI).Currently,clinical pathogenesis of VILI includes four categories such as barotrauma,volutrauma,atelectrauma and hiotrauma.The pathogenesis of mechanical injury has been widely accepted,but the biological injury pathogenesis is unclear.With further research,we found that in the late stage VILI patients occured proliferation of puhnonary fibrosis,which may be formed by partial epithelial-mesenchymal transdifferentiation (EMT).Further study of specific pathogenesis of biotrauma and ARDS pulmonary fibrosis proliferation could provide new ideas for the clinical treatment of VILI.
5.Application of thoracic ultrasonography for acute cor pulmonale patients in acute respiratory distress syndrome
Ting YUAN ; Shanglong YAO ; You SHANG
Chinese Critical Care Medicine 2016;28(6):573-576
Acute respiratory distress syndrome (ARDS) patients experiencing protective mechanical ventilation, is associated with a marked mortality reduction. However, the incidence of acute cor pulmonale (ACP) in ARDS patients has recently been reported to range between 22% and 25%, as well as a trend for higher mortality. Therefore, the mechanical ventilation strategy is proposed, not only based on the protection of the lung, but also focused on the impact on the right ventricle function. Currently, point-of-care ultrasound has been widely practiced in a variety of clinical setting, which plays more and more important role in the early detection and management of ARDS and its complications. A retrospective study concerning the incidence, pathophysiology and risk factors for ACP patients in ARDS was done to analysis the application of lung ultrasound and echocardiography combined with lung ultrasound in clinical hemodynamics monitoring, and so as to optimize the ventilation setting to protect the function of lung and right ventricle. Further exploration of effective improvement of the pulmonary vascular and right ventricle function the goal-directed ultrasound approach, and the diagnosis and treatment flow is expected.
6.Osteogenic function of human acellular bone loaded with bone marrow stromal cells
Qitao ZHANG ; You YU ; Lin YANG ; Meng YAO ; Tianzun TAO
Chinese Journal of Tissue Engineering Research 2006;10(5):136-138
BACKGROUND: To search for an alloxenogeneic bone with good load bearing function and osteoblastic activity for treating bone defects is an important study issue. We have made a comparative study on its biome chanical characteristics and found that there was no significant difference in maximum load stress, maximum pressure as compared with fresh bone of the same size. Clinicians are concerned about the osteoblastic activity and whether the osteoblastic activity can be reserved after human allogenous a cellular bone (HAB) loaded with bone marrow stromal cells (BMSCs). OBJECTIVE: To investigate the experimental effect of HAB loaded with induced BMSCs, and observe the cellular adherence and growth as well as detect its osteoblastic activity. DESIGN: Single sample experiment. SETTING: Second Affiliated Hospital of Harbin Medical University. MATERIALS: This experiment was conducted at the Experimental Center of the Second Affiliated Hospital of Harbin Medical University between January 2003 and August 2004. HAB was obtained from fresh corpse iliac bones (donated voluntarily). METHODS: Connective tissues and cell compounds of the iliac bones were removed by processing with hydroperoxide andether solution and sterilized for preparing HAB. BMSCs from living femoral shaft bone marrow were cultured immediately in ordinary and mineralized medium containing DMEM, fetal bovine serum, dexomethasone, β-glycerophophate and ascor bic acid. Proliferation and differentiation of bone stromal cells were deter mined by detecting the level of alkaline phosphatase (ALP) and osteocalcin (OCN) in the culture medium. Induced bone stromal cells solution was condensed and implanted within HAB scaffold. Cellular osteoblastic activ ity was determined through morphological observation under the light mi croscope and electron microscope as well as biochemical index detection. MAIN OUTCOME MEASURES: ① Detection results of ALP and OCN of BMSCs/HAB composite. ② Histological observation results of BMSCs/ HAB composite. RESULTS: ① Iliac bone block cells were cleaned with good reservation of bone matrix. ② The level of ALP and OCN of MSCs was higher after in ducing for 8 days than that in control group [MSCs after induction: (181.54±40.01) nkat/L, (7.2±1.3) μg/L. There was no method to detect the level in control group, P < 0.05]. ③ BMSCs were adhered and grew well in HAB scaffold. CONCLUSION: HAB loaded with induced BMSCs has an excellent os teogenic function in vitro and shows an effective potential as a good bone tissue engineering material.
7.The effect of circadian rhythm on the duration of neuromuscular blockade produced by atracurium
Ying HUANG ; Qunli HE ; You SHANG ; Shanglong YAO
Chinese Journal of Anesthesiology 2011;31(5):533-535
Objective To investigate the effect of circadian rhythm on the duration of neuromuscular blockade (NMB) elicited by atracurium. Methods Sixty-one ASA Ⅰ or Ⅱ patients aged 18-55 yr with body mass index of 18-24 kg/m2 undergoing general anesthesia were enrolled in this study. Anesthesia was induced with fentanyl 2 μg/kg and propofol 2 mg/kg. Atracurium 0.75 mg/kg was injected iv as soon as the patients lost consciousness . NMB was assessed by TOF-stimulation of ulnar nerve using TOF-Watch(R) SX. Tracheal intubation was performed as soon as the first twitch (T1) disappeared. The patients were mechanically ventilation (VT 6-8 ml/kg, RR 12 bpm, I ∶ E 1.0 ∶1.5). PETCO2 was maintained at 35-45 mm Hg. Anesthesia was maintained with continuous infusion of propofol 6-8 mg·kg-1·-1·-1and remifentanil 0.25-0.50 μg·kg-1·min-1 . Anesthesia was performed at 5 time periods: (1) 8:00-11:00, (2) 11:00-14:00, (3) 14:00-17:00, (4) 17:00-20:00 and (5) 20:00-23:00. The duration of NMB produced by atracurium was defined as the interval between the end of atracurium injection and 3% recovery of T2 . The data were analysed using generalised linear models (GLMs) and cosinor method. Results Fifty-three cases completed the study. GLM analysis showed that the duration of NMB was longest at 20:00-23:00 (53 min (95% confidence interval 50-56 min)) and shortest at 11:00-14:00 (43 min (95% confidence interval 39-46 min)), suggesting that there is a significant diurnal variation in the duration of NMB elicited by atracurium. Cosinor method analysis showed that equation of the duration of NMB and time point of atracurium administration was y = 48.05 + 15cos( 15t + 52.66). Conclusion Circadian rhythm can affect the duration of NMB elicited by atracurium, which shows that the duration of NMB is longest at 20:00-23:00 and shortest at 11:00-14:00.
8.Pregnancy outcome after cervical conization
Shanyang HE ; Li YUAN ; Xiaoli LI ; Zeshan YOU ; Shuzhong YAO
Chinese Journal of Perinatal Medicine 2011;14(9):515-518
Objective To investigate the effect of cervical knife conization (CKC) or loop electrical excision procedure (LEEP)on the outcome of subsequent pregnancies and mode of deliveries. Methods A retrospective case-control study including 228 women after treatment with LEEP or CKC for cervical intraepithelial neoplasia (CIN) Ⅱ -Ⅲ who gave birth in the First Affiliated Hospital of Sun Yat-sen University and He-xian Memorial Hospital of Pangyu from January 2004 to January 2010 was performed.Patients (n = 228) without cervical surgical history were randomly extracted from the respective hospitals birth registries as controls and were matched by age, gestation,parity and income.The information including gestational age, premature rupture of membranes (PROM), type of deliveries and birth weight of the two groups were collected.Results The gestational age of women treated with conization was (268.3±26.2) d, longer than that of the women without surgery (279.4±25.3) d (t=4.60, P<0.01). The incidence of preterm birth was 18.0%(41/228) and 4.4% (10/228) (x2 = 21.22, P< 0. 05). The incidence of PROM was higher in conizationgroup (10.1%, 23/228) than that (1.3%, 3/228) in control group (x2=16.32, P<0. 05). Risk for PROM was almost eight fold (OR=8. 42, 95%CI: 2.49-28.44) higher in conization group. Cesarean section rate was higher in conization group (69.3 % ) than in control group (39.0 % )(x2=42.06, P<0. 01). The gestational age of women treated with LEEP was longer than those treated with CKC[(269.8±24.6) d vs (260.2± 26.5) d, t= 4. 01, P<0.01]. The incidence of preterm birth was 13. 1% (22/168) and 31.6% (19/60) (x2 = 10. 34, P<0. 05). The mean birth weight of women with LEEP was heavier than that with CKC[(3358.5 ±812.2) g vs (3295.9 ±832.6) g, t=3.08, P<0. 01]. The incidence of PROM (7.1%, 12/168) of woman with CKC was higher than that (1.3%, 11/60) of women with LEEP (x2 =6.10, P<0.05). Conclusions Conization might increase the incidence of preterm delivery and preterm PROM. LEEP showed less adverse effect onthe outcome of subsequentpregnanciesthan CKC,and waspreferredfor primigravida, and the risk of treatment should be informed in advance.
9.Protective effects of valproic acid on lipopolysaccharide-induced acute lung injury in rats
Yuanxu JIANG ; You SHANG ; Shiying YUAN ; Ruidong QIAO ; Shanglong YAO
Chinese Journal of Emergency Medicine 2011;20(2):143-146
Objective To investigate the effects of valproic acid (VPA) on acute lung injury induced by Lipopolysaccharide in rats. Method The rat model of acute lung injury was made by intravenous injection of lipopolysaccharide (LPS). The pathological changes of lung were observed under light microscope and inflammatory cytokines in serum detected by using ELISA to judge whether the model was successfully done or not. All rats were divided into three groups as per the different intervention agents employed. Rats in control group were treated with intravenous injection of NS in dose of 5 ml/kg, rats in LPS group were exposed to LPS with dosage of 10 mg/kg and model rats in LPS + VPA group were treated with VPA in dose of 300 mg/kg. The rats were sacrificed 6 h after LPS or NS administration. The blood PaO2 ,A-aDO2 and blood lactic acid (Lac) were measured, the lungs were removed for observing the histopathological changes and determination of wet/dry lung weight (W/D) ratio and myeloperoxidase (MPO) activity as well as albumin concentration in broncho-alveolar lavage fluid (BALF) . Seurm was collected to determine the concentrations of tumor necrosis factor-a (TNF-α) and interleukin-1β( IL-1 β) by using LISA 6 h later. All data were presented in ((x)±s). One-way ANOVA was used for comparing differences between groups. Results Compared with acute lung injury group, the blood PaO2 (94. 50 ± 4.38 ) in rats of LPS + VPA group was higher, whereas A-aDO2 ( 13.50 ± 4.77 ) and blood lac( 2.13 ± 1. 02 ) in LPS + VPA group were lower. VPA significantly lowered W/D (5.33 ±0. 12) ratio and MPO activity (4.38 ±0. 42) in the lung. Albumin concentration ( 1. 260 ± 0. 039 ) in BALF, and the levels of TN F-α( 2 410 ±320 )and IL-1β( 1 220 ± 162 )in serum were lower in LPS + VPA group. The histological changes of lung injury were lessened by VPA. Conclusions Valproic acid has protective effects against lipopolysaccharide-induced acute lung injury in rats.
10.Effects of lipoxin A4 on inflammatory response to focal cerebral ischemia-reperfusion injury in rats
Xihong YE ; Yan WU ; Peipei GUO ; You SHANG ; Shanglong YAO
Chinese Journal of Anesthesiology 2010;30(4):465-468
Objective To investigate the effects of lipoxin A4 (LXA4) on the inflammatory response to focal cerebral ischemia-reperfusion(I/R) inmy in rats.Methods Fifty-six healthy male SD rats weighing 200-250 g were randomly divided into 3 groups:group Ⅰ sham operation(group S,n=8);group Ⅱ cerebral I/R(n=24)and group Ⅲ lipoxin A4+I/R(group LXA4,n=24).Right mid-cerebral artery was occluded for 2 h by inserting cranially a nylon thread with rounded tip into internal carotid artery.LXA4 0.03 nmol/5 μl was injected into cerebral ventricle at 5 min after cerebral ischemia.Neurological deficit was scored at 24 h of reperfusion.Then four animals in each group were killed and their brains were removed for microscopic examination and expression of MPO at 24 h of reperfusion.Meantime,content of IL-1β,TNF-α,TGF-β1,and IL-10 in the brain tissue were measured at 1,6,12,24 and 48 h of reperfusion by ELISA.Glial cell activity was examined at 24 h of reperfusion by immuno-histochemistry.Results Intra-cerebroventricular administrated LXA4 0.03 nmol/5 μl provided mild neuroprotection against focal cerebral I/R injury,improved neurological deficits,and reduced morphological brain damages and PMN infiltration.LXA4 also decreased the content of TNF-α and IL-1β,and increased the content of IL-10 and TGF-β1.The numbers of activated astroglia and microglia were decreased in group LXA4 compared with group I/R.Conclusion LXA4 protects the brain against I/R injury by inhibiting inflammatory response.