1.Early cornea healing response of PRK and free-flap Epi-LASIK under different cutting depth in rabbit
Chinese Journal of Experimental Ophthalmology 2011;29(4):336-340
Background Free-flap Epi-LASIK surgery show a fast epithelial healing and mild trauma responses.Its mechanism is notable. Objective The aim of this study was to compare the corneal epithelial healing response following photorefractive keratectomy(PRK)and flap-free Epi-LASIK surgery. Methods Twelve experimental rabbits were randomly assigned to high cutting group(-10.00 D)and low cutting group(-3.00 D),and 2 normal matched rabbits were used as controls.PRK was performed in lateral eyes and flap-free epipolis laser in situkeratomileusis(Epi-LASIK)surgery was curried out in the fellow eyes.The corneal wound healing response in early stage of post-operation was examined under the slim lamp,and the inflammatory cells infiltration in cornea,basic fibroblast growth factor(bFGF)and nuclear transcription factor(NF-KB)expressions in corneal stroma were detected by hematine-eosin staining and immunohistochemstry in the seventh day after operation. Results The inflammatory reaction was milder in the eyes with Epi-LASIK than ones of PRK under the slim lamp.No significant difierences were found in numbers of inflammatory cells in cornea.expressions of bFGF and NF-κB in corneal stroma between two types of surgeries in low cutting group(P>0.05).In high cutting group,the numbers of inflammatory cells were(12.25±1.22)/400 field in PRK eyes,and those of free-flap Epi-LASIK eyes were(6.67±0.31)/400 field,showing obvious difference between them(t=-8.87,P<0.01).Expressions of NF-κB(A value)in cornea were 6.11±1.36 and 41.82±8.7 1 in PRK eyes of low cutting group and high cutting group.and those in free-flap Epi-LASIK were 3.01±0.81 and 11.59±4.55.indicating a drastically increase in PRK eyes(P<0.05).The expressions of bFGF(A value)in corneal stroma were 33.59±6.98 and 123.68±18.81 in PRK eyes and those in free-flap Epi-LASIK eyes were 69.20±8.85 and 123.68±1 8.81 in low cutting group and high cutting group,presenting a considerably decrease in PRK eyes (P<0.05).The corneal epithelial healing was faster in free-flap Epi-LASIK eyes than that in PRK eyes.and deeper cutting slowed the healing procedure. Conclusion In low cutting group,healing time of corneal epithelium is close between PRK and flap-free Epi-LASIK.But in high cutting group,epithelial healing is faster and inflammatory reaction is lighter in flap-free Epi-LASIK compared with PRK.
2.Moderating Role of Sense of Humor to the Relationship Between Stressful Events and Mental Health
Lixin YUAN ; Jijia ZHANG ; Man CHEN
Chinese Journal of Clinical Psychology 2006;0(06):-
Objective: To investigate moderating role of sense of humor to the relationship between stressful events and mental health. Methods: 836 middle-school students were investigated by MSHS, ASLEC and GHQ-20. Results: Sense of humor had a positive effect on students’ mental health, and strong humor could deduce the level of anxiety and depressed emotion. Sense of humor could buffer the relationship of stressful events and depression, but it could not adjust the relationship of stressful events with self-affirmation and anxiety. Conclusion: Sense of humor has a moderating effect on the stressful events and some aspects of mental health.
3.Clinical Curative Effect and Safety of MCT/LCT Fat Emulsions at Different Doses in Preterm and Low Birth Weight Infants
Jing YUAN ; Man HE ; Wujun DING
China Pharmacist 2015;(3):444-445
Objective:To analyze the effect of MCT/LCT fat emulsions at different doses on the growth and development of prema-ture and low birth weight infants. Methods: Totally 76 cases of preterm or low birth weight infants were divided into the treatment group (40 cases) and the control group (36 cases), both groups were given MCT/LCT fat emulsions, amino acid and glucose injec-tions in 12-24 h after the birth. The initial dose of MCT/LCT fat emulsions in the treatment group was 2. 0 g·kg-1 ·d-1 and the dose was gradually increased to 3. 0 g·kg-1 ·d-1 with 0. 5 g·kg-1 ·d-1 progressive increase. The initial dose of MCT/LCT fat emulsions in the control group was 0. 5 g·kg-1 ·d-1 , and the dose was increased to 3. 0 g·kg-1 ·d-1 with 0. 5 g·kg-1 ·d-1 progressive in-crease. The treatment course was 7 days. The neonatal weight, serum total bilirubin, direct bilirubin, alanine aminotransferase, total cholesterol, triacylglycerol and blood glucose were monitored in the two groups. Results:The born body mass recovery time of the ob-servation group was (4. 38+0. 93) d, which was significantly shorter than that in the control group [(6. 81+1. 90) d]. After the re-covery, the body weight growth rate of the observation group was (30. 41+1. 81) g·kg-1 ·d-1 , which was significantly higher than that of the control group [(18. 21 +2. 08) g·kg-1 ·d-1, P <0. 05]. After the 7-day treatment, the blood biochemical indices showed no statistically significant difference between the two groups (P>0. 05). Conclusion:Early application of MCT/LCT fat emul-sions at high dose is beneficial to the improvement of nutritional status in premature infants.
4.Some problems in the treatment of elbow joint injury.
Chinese Journal of Surgery 2009;47(12):881-883
5.Serum cytokine levels in children with febrile convulsion.
Hong-Xia YUAN ; Man-Zhi WANG ; Fang WANG
Chinese Journal of Contemporary Pediatrics 2008;10(3):405-406
Adolescent
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Child
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Child, Preschool
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Cytokines
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blood
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Female
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Humans
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Infant
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Interleukin-6
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blood
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Interleukin-8
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blood
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Male
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Seizures, Febrile
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immunology
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Tumor Necrosis Factor-alpha
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blood
6.Regression between MR findings of lumbar elements and chronic low back pain
Kun ZHANG ; Man LI ; Xinlong PEI ; Huishu YUAN
Chinese Journal of Radiology 2014;48(12):1019-1023
Objective To investigate the relationship between the MR findings of lumbar elements and chronic low back pain(CLBP).Methods The patients underwent lumbar MRI examinations and sent for a questionnaires of low back pain (LBP).Among them,139 patients whose questionnaires illustrated with CLBP were enrolled.The enrolled patients included 68 patients with nerve roots compression and 71 patients without.Meanwhile,198 hospital staffs underwent lumbar MRI examinations and were sentfor a LBP questionnaire.Among them,62 patients without LBP and nerve roots compression were enrolled.Categorical regression was used to analyze the relationship between MR findings and CLBP.The MR findings iucluded nerve roots compression,average disk degeneration scores(ADD),high-intensity zones (HIZ),Schmorlnodes,Modic Ⅰ change,average facet joints degeneration scores(AZZ),facet joint effusion,high T2 signal in interspinous ligament and subcutaneousparaspinal muscles edema.The regression model was used to analyze the MR imaging and CLBP.Results The regression model was statistically significant (F=9.478,P<0.01).All predictors yielded an adjusted value was 0.446.Among all predictors,nerve roots compression,ADD,AZZ,subcutaneous or paraspinal muscles edema were statistically associated with the VAS degree (P<0.05).The sum of the importance of the four predictors above was 0.983.The quantification of predicted VAS degree increased as ADD level increased.The quantification of predicted VAS degree increased to the top at the 2 AZZ level and then decreased.Nerve roots compression and Subcutaneous or paraspinal muscles edema yielded higher quantification of predicted VAS degree level.Conclusion ADD,AZZ,subcutaneousparaspinal muscles edema were probably associated with CLBP degree after adjusting for nerve roots compression.
7.Influence of high-mobility group box 1 on proliferation of neural stem cell in pre-infarction cortex of focal cerebral ischemia/reperfusion model rats
Man LI ; Yong LUO ; Yuan LI ; Lin SUN
Chinese Journal of Pathophysiology 2014;(9):1616-1621
AIM:To investigate the influence of high-mobility group box 1 (HMGB1) on the proliferation of neural stem cells in peri-infarction cortex of focal cerebral ischemia/reperfusion model rats .METHODS: Male SD rats (n=48) were randomly divided into sham group , ischemia/reperfusion (I/R) group, RNA interference group and nega-tive interference group .The rat middle cerebral artery was blocked to establish focal cerebral I /R model ( ischemia for 1 h and reperfusion for 7 d).Lentivirus vector of HMGB1 shRNA was used to suppress the HMGB1 protein expression in the rat brain.The effect of RNA interference was evaluated by the methods of double-immunofluorescence labeling of HMGB 1/GFAP and Western blotting .The proliferation of neural stem cells in the peri-infarction cortex was assessed by double labe-ling of BrdU/nestin.RESULTS: The protein expression of HMGB1 in I/R group was much higher than those in sham group (P<0.05).RNA interference effectively inhibited the HMGB1 expression (P<0.05).Double labeled BrdU/nestin positive cells in I/R group were more than that in sham group (P<0.05).The double labeled BrdU/nestin positive cells were significantly decreased in RNA interference group (P<0.05).CONCLUSION:Focal cerebral ischemia/reperfusion injury promotes the proliferation of neural stem cells in peri-infarction cortex by increasing HMGB 1 protein level .
8.Revision of Research Capacity Self-rating Scales of Nursing Staff and its reliability and validity
Huihui YIN ; Anchun YIN ; Xiujie ZHANG ; Man YUAN
Chinese Journal of Practical Nursing 2016;32(8):630-637
Objective To revise the Research Capacity Self-Rating Scales of Nursing Staff and test its reliability and validity.Methods Based on the definition of scientific research capacity,the initial dimensions and items of Research Capacity Self-Rating Scales of Nursing Staff was formed by literature review,semi-structured interview and experts evaluation.The content validity was evaluated by experts,and the face validity by nursing staffs.600 nurses were investigated by convenient sampling.The reliability and validity and discrimination of the scale were tested.Results Research Capacity Self-Rating Scales of Nursing Staff were selected in 7 dimensions including the capacity of find problem,research design,scientific research practice,innovation,information retrieval,data processing and writing.Scale-level Content validity index was 0.94.The Cronbach alpha coefficient of Research Capacity Self-rating Scales of Nursing Staff was 0.964,the Cronbach alpha coefficients of the seven dimensions were 0.771-0.975,split-half reliability was 0.885.Seven factors were extracted by using principal factor analysis,cumulative contribution was 71.002%.The correlation coefficient between the Scientific Research Capacity Self-rating Scales of Nursing Staff and General Self-Efficacy Scale was 0.649 (P=0.000).The discrimination was better.Conclusions The Research Capacity Self-rating Scales of Nursing Staff revised shows good reliability and validity.It can objectively evaluate scientific research capacity of nursing staff and provide scientific reference for further improving the research capacity of the nursing staff.
9.Passive movement and the expression of brain derived neurotrophic factor and the B cell lymphoma/leukemia-2 gene after cerebral infarction
Mengdie WANG ; Man LI ; Yuanwu MEI ; Gang LI ; Yuan FANG
Chinese Journal of Physical Medicine and Rehabilitation 2010;32(7):483-486
Objective To observe the effects of passive movement on the functional outcome after occlusion of the middle artery in the brain and reperfusion, and to explore the molecular mechanisms involved. Methods Cerebral infarction models were established in rats using left middle cerebral artery occlusion ( MCAO). The survivors were randomly divided into a passive movement group and a natural recovery group. There was also a sham-operated group and a normal group. Passive movement treatment (twice a day, twenty min per time) was started at different times after reperfusion. The expression of brain-derived neurotrophic factor (BDNF) and B cell lymphoma/leukemia-2 gene (Bcl-2) were determined using real-time PCRs. Results Expression of BDNF and Bcl-2 was detected a-round the infarction area in both groups. The expression of BDNF and Bcl-2 was highest in the sub-groups where passive movement was begun 24 or 48 h after the operation. Conclusions The expression of BDNF and Bcl-2 in the brain peaks when daily, moderate intensity passive movement is administered beginning 24 to 48 h after reperfusion. Passive movement might have a protective and rehabilitative effect after cerebral infarction.
10.Relationship between UGT1 A1 Gene Polymorphism and Irinotecan Efficacy and Adverse Reactions of Iri-notecan in the Treatment of Small Cell Lung Cancer at Extensive Stage
Xiaoguang XIAO ; Shu XIA ; Man ZOU ; Shujing WANG ; Yuan CHEN
China Pharmacist 2015;18(10):1661-1666
Objective:To analyze the distribution of UGT1A1 gene polymorphisms in Chinese Han patients with extensive-disease small cell lung cancer(ED-SCLC),and evaluate the correlation between UGT1A1 gene polymorphisms and toxicity and efficacy of irino-tecan(CPT-11) based regimen in the patients with ED-SCLC. Methods: The analysis of UGT1A1?28 and UGT1A1?6 gene poly-morphisms was performed in 67 patients with ED-SCLC admitted in our hospital from June 2011 to January 2013. The 67 cases with ED-SCLC treated with irinotecan(CPT-11) based regimen were enrolled to observe the adverse events and efficacy during the chemo-therapy, including objective responserate rate ( ORR) , progression free survival ( PFS) and overall survival ( OS) . The incidence of different genotypes was compared. Results:The distribution of UGT1A1 genotypes in the 67 patients was follows:UGT1A1?28 wild-type (WT) genotype TA6/6 (56, 83. 6%), heterozygous genotype TA6/7 (11, 16. 4%);UGT1A1?6 wild-type (WT) genotype G/G (45,67. 2%), heterozygous genotype G/A (22,32. 8%). No significant difference of PFS and OS was observed between the differ-ent genotypes. The incidence of grade 3 and 4 delayed diarrhea and neutropenia in the patients carrying UGT1A1?6 G/A was higher than that in those with WT genotype (36. 4% vs. 6. 6%, P<0. 05;27. 2% vs. 4. 4%, P<0. 05, respectively). The incidence of grade 3 and 4 thrombocytopenia in the patients carrying UGT1A1?28 TA6/7 was higher than that in those with WT genotype (27. 2%vs. 1. 8%, P<0. 05). The patients simultaneously carrying UGT1A1?28 TA6/7 and UGT1A1?6 G/A were prone to suffering 3 and 4 delayed diarrhea and neutropenia. Conclusion: UGT1A1 polymorphisms may predict the adverse events of CPT-11 in ED-SCLC, while can not predict the efficacy of CPT-11.