2.Effects of Simulated Microgravity on the Morphology and Growth of PC12 Cells.
Tangbin YANG ; Lina QU ; Ping ZHONG ; Yanhong YUAN ; Hai ZHAO
Space Medicine & Medical Engineering 2006;0(02):-
Objective To observe whether the increase of oxidative stress in PC12 cells could influence the levels of protein carbonyls and nitrotyrosine and alter the cytoskeleton and cell morphology under clinostat condition,and whether the increase of content of nitrate/nitrite in cell culture medium could influence the cell proliferation and differentiation.Method Cell morphology,carbonylated actin and nitrotyrosinated tubulin,and mRNA and protein express of nNOS and iNOS were observed and determined with immunofluorescence and RT-PCR technology in clinostat rotated and control static groups.At the same time,cell density was measured and cell cycles were detected with flow cytometry.The relationship between all these changes and NOS were also analyzed.Result The levels of carbonylated and nitrotyrosinated cytoskeleton protein were altered,no obvious changes in cell morphology but neurite outgrowth after on a clinostat rotation.Cell density also increased significantly,DNA synthesis in cell cycles was shortened.Conclusion All of these results indicate that simulated weightlessness do not alter cell morphology and is beneficial to the growth of PC12 cells.The mechanism involved may be associated with the increase of NOS activity.
3.Effects of mistral-air inflatable blanket on neonatal blood coagulation function after surgery for general anesthesia
Shuangmei LIU ; Xiaohui ZHANG ; Yu ZHONG ; Ping ZHAO
International Journal of Pediatrics 2017;44(6):415-417,422
Objective To evaluate the value of mistral-air inflatable blanket in neonatal temperature,postoperative complications,and the influence of the blood coagulation function after surgery undergoing general anesthesia.Methods A total of 60 newborns with laparotomy operation undergoing general anesthesia were randomly divided into two groups,the control group and the observation group,30 persons each group.The newborns were given mistral-air inflatable blanket in the observation group,and conventional methods in the control group,two groups were transferred to Postanesthesia Care Unit by incubator at 37℃.The introperative nasopharyngeal temprature,HR,MAP and SpO2 were recorded before induction (T0),30 minutes during operation (T1),extubated instantly (T2),15 minutes during PACU (T3),30 min during PACU (T4).The extubation time and the incidence of apnoea and hyoxemia were recorded after operation.PT,APTT,TT and Fib were tested before induction and extubated instantly.Results The temperature of intraoperative and postoperative period were higher in the observation group than the control group,the difference was significant(P < 0.05).The heart rates of intraoperative and postoperative period is significantly higher in the control group than the observation group,the difference was significant(P < 0.05);the mean arterial pressure were no significant statistical difference(P > 0.05).The observation group extubation time were less than the control group,the difference was significant (P < 0.05).There was no significant difference about the incidence of hypoxemia and apnea in two groups(P > 0.05).The PT,APTT,TT and Fib in the observation group were better than the control group,the difference between the groups was significant(P < 0.05).Conclusion Mistral-air inflatable blanket can effectively prevent the decrease of the body temperature during operation and PACU,reduce the exduction time and postoperative complications,and protect blood coagulation function.
4.Study of regulation of miR-21 on ADAMTS-1 expression
Hong ZHAO ; Pingbo YAO ; Li DAI ; Ping ZHONG ; Jun HE
The Journal of Practical Medicine 2015;31(15):2426-2429
Objective To investigate the regulatory effect of miR-21 on ADAMTS-1 expression in pulmonary fibrosis model. Methods A mouse model of pulmonary fibrosis was established using bleomycin (BLM) anda model of pulmonary fibrosis was constructed in vitro , the expression level of miR-21 was measured by quantitative real-time polymerase chain reaction (qRT-PCR), while the protein expression of ADAMTS-1 was measured by Western blot. NIH3T3 were transfected with miR-21 mimics and inhibitor in vitro and the cellular expression of ADAMTS-1 was measured by Western blot. Results Compared with the blank group , in mouse models of pulmonary fibrosis , the miR-21 expressions in lung tissues at three time points after BLM-treatment were significantly up-regulated while an evident decrease in ADAMTS-1 expressions were observed (P < 0.01). In vitro pulmonary fibrosis model , NIH3T3 cells after TGF-β1 in concentration 5 μg/L stimulation down-regulated ADAMTS-1 expression and up-regulated miR-21 expression (P < 0.01). NIH3T3 transfected with miR-21 mimics and inhibitor, up-regulated miR-21 expression, while down-regulated ADAMTS-1 protein expression. Conclusions Up-regulation of miR-21 and Down-regulation of ADAMTS-1 might be involved in the progression of pulmonary fibrosis model; miR-21 could negatively regulate ADAMTS-1 expression.
5.Effects of early enteral feeding on clinical outcomes and immune function in patients after colorectal cancer surgery
Dongsheng WANG ; Bei ZHONG ; Ping ZHAO ; Xiaodong LIU ; Yanbing ZHOU
Chinese Journal of General Surgery 2015;30(1):38-41
Objective To observe the effect of early enteral feeding on clinical outcomes and immune function in patients after colorectal cancer surgery.Methods 90 cases of colorectal cancer patients were randomly divided into early enteral feeding group (43 cases) and control group (45 cases).Patients in early feeding group were given small amount of water several times and enteral nutrition early after surgery,while patients in the control group were administrated according to conventional postoperative care protocol.Data were collected on serum IgA,IgG,IgM,CD4 +,CD4 +/CD8 + and CRP on the postoperative first,third and seventh days,postoperative length of stay,complications and quality of life.Results The postoperative fever time [(54 ±6) h vs.(65 ±6) h,t =8.688,P <0.01],time to flatus [(58 ±8) h vs.(72±7) h,t=8.573,P<0.01],postoperative length of stay [(6.9±1.4) dvs.(8.5 ±1.9) d,t=4.277,P < 0.01] and health care cost [(41 868 ± 3 168) RMB vs.(45 950 ± 3 714) RMB,t =5.536,P < 0.01] were significantly in favour of early enteral feeding group than those in control group.Further,the score of quality of life at discharge were significantly higher in early enteral feeding group [(18.4 ± 1.7) vs.(16.4 ± 1.9),t =5.235,P < 0.01],while the complication incidence showed no difference between the two groups [18.6% (8/43) vs.22.2% (10/45),t=0.177,P>0.05].The CD4+,CD4+/CD8+ and IgM on the seventh postoperative day and the IgA and IgG on the third and seventh postoperative day were significantly better in early enteral feeding group while the CRP was significantly lower as compared to the control group (t =3.639,t =2.255,t =2.119,t =2.035,t =2.961,t =2.060,t =2.108,t =7.308,t =3.435,P < 0.05).Conclusions Early oral enteral feeding after elective colorectal cancer surgery can improve patient's immune function,reduce the stress and accelerate rehabilitation.
6.Treatment of radial neck fracture in children with elastic stable intramedullary nails.
Lu-feng YAO ; Zhao-ming YE ; Zhao-xu LI ; Zhao-ping ZHONG ; Rong-ming XU
China Journal of Orthopaedics and Traumatology 2013;26(12):1028-1031
OBJECTIVETo investigate effects of elastic stable intramedullary nails for the treatment of radial neck fracture in children.
METHODSFrom July 2006 to December 2011, 25 children with radical neck fractures, which included 16 males and 9 females aged from 7 to 15 years old (means 10.7), were treated with elastic stable intramedullary nails. According to Judet classification, 6 cases were type II, 17 cases were type III and 2 cases were type IV (including 1 case with type IVa and 1 case with type IVb). The fracture healing, pain, deformity and range of motion of elbow were recorded.
RESULTSAll patients were followed up for 6 to 24 months with an average of 14 months. Twenty-five patients were obtained bone healing. According to Tibone and Stoltz evaluation standard, 18 cases got excellet results, 4 cases in good and 3 cases in moderate.
CONCLUSIONElastic stable intramedullary nails for the treatment of radial neck fracture in children has advantages of simple operation,less trauma and good results.
Adolescent ; Bone Nails ; Child ; Female ; Fracture Fixation, Intramedullary ; Humans ; Male ; Radius Fractures ; physiopathology ; surgery ; Range of Motion, Articular ; Treatment Outcome
7.Efficacy of combined pranoprofen eye drops and artificial tears on the treatment of mild to moderate dry eye syndrome after trabbeculectomy
Guang-Ming, ZHAO ; Ping, ZHAO ; Bao-Ling, NI ; Zhong-Gang, YI ; Cheng, YANG ; Jing-Jing, ZHENG
International Eye Science 2015;(2):370-372
AlM:To evaluate the efficacy of combined pranoprofen eye drops and artificial tears on the treatment of mild to moderate dry eye syndrome after trabbeculectomy.METHODS:This prospective case control study included 63 cases (63 eyes) of patients with mild to moderate dry eye syndrome after trabbeculectomy in our hospital from November 2013 to June 2013. All subjects were randomly divided into two groups. Observation group was treated with combined pranoprofen eye drops and artificial tears and control group received simple artificial tears marking the eyes at 1, 2, 4wk. The patient's symptoms, signs, BUT, S▏t, and FL were observed before treatment and 1, 2, 4wk after treatment.RESULTS: After 2wk, the symptoms of observation group were improved, there was statistically significant difference (P<0. 05). FL difference of each group was statistically significant ( P<0. 05 ); After 4wk, symptoms and signs were improved. There was statistically significant difference ( P < 0. 05 ). The BUT of the observation group and corneal FL scores of two groups showed significant differences (P<0. 05). CONCLUSlON: Artificial tears joint pranoprofen eye drops has good curative effect in the treatment of mild to moderate dry eye syndrome after trabbeculectomy.
8.Experimental study on internal fixation with screws through femoral epiphyseal plate.
Jin CAO ; Shan-Shan HU ; Hua-Jiang ZHENG ; Lu-Feng YAO ; Zhao-Ping ZHONG
China Journal of Orthopaedics and Traumatology 2015;28(3):240-244
OBJECTIVETo explore the effect of internal fixation with screw through femoral epiphyseal plate on growth in- hibition via an experimental study.
METHODSForty New Zealand rabbits were randomly divided into 4 groups and 10 rabbits in each group. Epiphyseal plate was injured by penetrating of screws, and the size of damage area was controlled by changing the number of threads. Group A: blank group; group B: injury area accounted for 4% of the epiphyseal plate; group C: injury area accounted for 6%; group D: injury area accounted for 8%. The internal fixation was removed after 2 weeks, and the results were observed with X-ray film for 4 groups to judge the complications such as early closure of epiphyseal.
RESULTSIn each group, there were no statistical differences in the length of the femoral neck, the diameter of femoral neck, the diameter of the femoral head, and the epiphyseal plate closure time. The growth speed of the length and diameter of the femoral neck, as well as the diameter of femoral head, were quicker on the early phase, and the speed was slowest when the epiphyseal plate was being closed.
CONCLUSIONThe injury area of epiphyseal plate under 8% is safe for its growth. Because no evidences demonstrate the growth inhibition of epiphyseal plate, the screws can be used for rabbit epiphyseal plates.
Animals ; Bone Screws ; Female ; Femur Head ; growth & development ; surgery ; Fracture Fixation, Internal ; methods ; Growth Plate ; growth & development ; Magnetic Resonance Imaging ; Male ; Rabbits ; Salter-Harris Fractures
10.Expression of osteopontin mRNA and OCT2 mRNA in human gastric carcinoma by tissue microarray and its significance.
Qiao-ying ZHANG ; Gen-you YAO ; Yan-ping FU ; Zhong-sheng ZHAO
Chinese Journal of Pathology 2006;35(1):42-43
Adenocarcinoma
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metabolism
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pathology
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Adenocarcinoma, Mucinous
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metabolism
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pathology
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Adenocarcinoma, Papillary
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metabolism
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pathology
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Carcinoma, Signet Ring Cell
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metabolism
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pathology
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Follow-Up Studies
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Gene Expression Regulation, Neoplastic
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Humans
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Lymphatic Metastasis
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Neoplasm Invasiveness
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Organic Cation Transport Proteins
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biosynthesis
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genetics
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Organic Cation Transporter 2
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Osteopontin
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Prognosis
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RNA, Messenger
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biosynthesis
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genetics
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Sialoglycoproteins
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biosynthesis
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genetics
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Stomach Neoplasms
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metabolism
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pathology
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Survival Rate