1.Asian Resilience Scale’s Preliminary Revision, Reliability and Validity in Chinese College Students
Chinese Journal of Clinical Psychology 1993;0(01):-
Objective: To explore the Asian Resilience Scale’s preliminary revision, reliability and validity in college students of China. Methods: 646 students were investigated with the Asian Resilience Scale and the short form of NEO Five-Factor Inventory. Results: ①Three factors were extracted by exploratory factor analysis and explained 47.1% of variance. ②Confirmatory factor analysis showed good fit between the data and the construct of scale, ?2/df=2.36,RMSEA= 0.055,GFI=0.923,CFI=0.908,NNFI (TLI)=0.894. ③The Cronbach’s ? coefficients, split-half and retest reliability of the total scores were 0.865, 0.836 and 0.894 respectively. ④The total score of the Asian Resilience Scale was significantly negatively correlated with neuroticism and positively correlated with extraversion, openness to experience, agreeableness and conscientiousness. Conclusion: Reliability and validity of the Asian Resilience Scale’s revised Chinese version is corresponded with psychometric standard, and it could be used to assess the resilience of Chinese college students.
2.Effect and mechanism of umbilical cord blood stem cells in the treatment of stroke
Chinese Journal of Tissue Engineering Research 2017;21(9):1470-1476
BACKGROUND: Studies have confirmed that umbilical cord blood stem cells can improve the neurologicalfunction after stroke, but the mechanism of umbilical cord blood stem cells in the treatment of stroke is unclear.OBJECTIVE: To review the effect and mechanism of umbilical cord blood stem cells in the treatment of stroke.METHODS: The first author searched PubMed and CNKI databases for relevant articles published from January2005 to December 2015 using key words of umbilical cord blood stem cells, stroke in English and Chinese,respectively. RESULTS AND CONCLUSION: With the further research on the neural differentiation of umbilical cord blood stem cells,umbilical cord blood stem cells have become a hot research topic in the field of neural system disease therapy. Atpresent, some experimental studies on cell transplantation for stroke have achieved ideal curative effects. However, themechanism of umbilical cord blood stem cells in the treatment of stroke is not clear. Known therapeutic mechanismsinclude the recombination of blood vessels, nerve loops and other damage tissue structures, secretion of variousnutritional factors to reduce endogenous apoptosis, promotion of endogenous blood vessels and nerve regeneration, etc.But the following problems need to be further studied, including whether the transplanted cells can be fully filled toreplace necrotic nerve cells and promote recovery of nerve function; how these survived stem cells establish the neuralconnections; how these transplanted cells reduce the apoptosis and necrosis of the host cells to restore the cell function.
3.Clinical study of plasma homocysteine, serum folic acid and vitamin B_(12) in ischemic leukoaraeosis
Medical Journal of Chinese People's Liberation Army 1983;0(05):-
Objective To investigate the clinical importance and the relationship between the levels of plasma total homocysteine (Hcy), serum folic acid and vitamin B 12 , and the occurrence and development of ischemic leukoaraeosis (LA). Methods Ischemic LA group and normal control group with 100 cases for each were studied. The 100 cases in ischemic LA group were firmly diagnosed by CT or / and MRI. The levels of plasma total Hcy, serum folic acid and vitamin B 12 of the patients in ischemic LA group were measured, and compared with that in control group. Results The level of plasma Hcy in ischemic LA group (19.79?5.25?mol/L) was significantly higher than that in control group (12.02?2.11?mol/L), while the levels of serum folic acid and vitamin B 12 in ischemic LA group (2.08?0.84ng/ml and 140.13?45.49pg/ml) were lower than that in control group (4.39?1.30ng/ml, 297.45?120.23pg/ml). The differences between two groups were statistically significant (P
4.Expression of chemokine receptor CCR7 and VEGF-C is associated with prognosis of breast carcinoma
Qinghua LIU ; Guohua YU ; Yuqing LIU
Chinese Journal of Pathophysiology 2016;32(8):1457-1460,1465
AIM: To explore the protein levels of chemokine receptor 7 (CCR7) and vascular endothelial growth factor ( VEGF)-C in breast carcinoma , and to investigate the effects of CCR 7 and VEGF-C on prognosis of breast carcinoma.METHODS:The protein expression levels of CCR 7 and VEGF-C in the breast carcinoma tissues and normal breast tissues were detected by the method of immunohistochemistry .At the same time, the relationship between clinico-pathologic characteristics and the protein expression of CCR 7 and VEGF-C in the breast carcinoma tissues was analyzed . The relationship between the protein expression of CCR 7 and VEGF-C and survival time of the breast cancer patients was estimated by Kaplan-Meier method.RESULTS:The positive expression rates of CCR 7 and VEGF-C in the breast carcino-ma tissues were significantly higher than those in the normal breast tissues (P<0.01).A positive correlation was observed between the protein expression of CCR7 and the protein expression of VEGF-C in the breast carcinoma tissues (r=0.613, P<0.01).The protein expression of CCR7 and VEGF-C was correlated with lymph node metastasis and TNM stage (P<0.05), but both were not related to patients ’ age, primary tumor size, estrogen receptor and progesterone receptor .The survival time of the patients with CCR 7 and VEGF-C positive expression was significantly shorter than that of the patients without the expression (P<0.05).CONCLUSION:The positive expression of CCR7 and VEGF-C proteins is associated with the prognosis of breast cancer , and combined detection of CCR 7 and VEGF-C protein expression levels may be helpful to judge the prognosis of breast cancer .
5.Effect of laparoscope anesthesia inducted by sevoflurane combined with different doses of propofol on VEGF-C and PGE2 in patients with hysteromyoma
Guohua LIU ; Tianquan WEI ; Baolin ZHONG
Chinese Journal of Biochemical Pharmaceutics 2015;35(10):70-72
Objective To investigate effect of laparoscope anesthesia inducted by sevoflurane combined with different doses of propofol on vascular endothelial growth factor-C (VEGF-C) and prostaglandin E2(PGE2)in patients with hysteromyoma.Methods 77 cases of patients with uterine fibroids were selected and divided into two groups.40 cases in group A were anesthetized inducted by 2.0 mg/kg propofol combined with sevoflurane, 37cases in group A were anesthesia inducted by 1.0 mg/kg propofol combined with sevoflurane.VEGF-C and PGE2 in serum were compared before and 48h after the operation.Results Compared with preoperation, VEGF-C and PGE2in serum were lower (P<0.05), VAS score was lower (P<0.05);Compared with group B, VEGF-C and PGE2 in serum of the group A were lower (P<0.05), VAS score was higher (P<0.05).Conclusion Different doses of propofol on serum VEGF-C and PGE2 in patients with laparoscopic uterine fibroids have different effects, 1.0 mg/kg has a sedative effect, 2 0 mg/kg with anesthesia induction.
6.Reliability and validity of the Chinese revised version of the intolerance of uncertainty scale
Bibing DAI ; Guohua ZHANG ; Huijun LIU
Chinese Journal of Behavioral Medicine and Brain Science 2013;22(10):949-951
Objective To explore the reliability and validity of the Chinese revised version of the Intolerance of uncertainty scale(IUS).Methods A total of 930 college students completed the IUS.45 college students participated in the retest 3 weeks later.The self-rating anxiety scale (SAS) and the self-rating depression scale (SDS) were used as criterions for assessment of the validity of the Chinese revised version of IUS.Results The Chinese revised version of IUS contained 21 items.Exploratory factor analysis found a two-factor model (negative belief and emotional experience,behavioral dysfunction and negative self-reference) with a cumulative variance contribution rate of 42.09%.And the results of Confirmatory factor analysis (x 2/df =2.82,GFI =0.90,TLI =0.90,CFI =0.91,RMSEA =0.065) indicated that this model provided a reasonable good fit for Chinese college students.The Cronbach α of internal consistency reliability were good for IUS and two subscales,which were 0.929,0.885 and 0.864,respectively.The test-retest reliabilities for IUS and two subscales were 0.782,0.766 and 0.714 respectively.The IUS scores were positively correlated with the scores of SAS and SDS (r =0.489 ~0.575,P < 0.001).Conclusion It suggests that the Chinese revised version of IUS has good reliability and validity,which is qualified enough for relevant research and applications for Chinese adults.
7.Proteomic analysis of energy metabolism-related proteins of mice midbrain
Guohua DU ; Hongxu WANG ; Ziliang LIU
International Journal of Laboratory Medicine 2015;(13):1846-1848
Objective To identify energy metabolism-proteins of mice midbrain by using the proteomic technique,and to investi-gate the relationship between these proteins and neural diseases.Methods Two-dimensional gel electrophoresis was used to sepa-rate totally soluble proteins extracted from mice midbrain.Some protein spots on two-dimensional gel electrophoresis gels were ana-lyzed by using matrix assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS).Results 24 protein spots related with energy metabolism were separated by two-dimensional gel electrophoresis and identified by using MALDI-TOF MS successfully.Conclusion The establishment of energy metabolism-related proteins map of mice midbrain lays a foundation for the research on the involvement of these proteins in neural disease pathogenesis.
8.Effect of telmisartan on insulin resistance in elderly patients undergoing maintenance hemodialysis
Rui WANG ; Guohua DING ; Hongyan LIU
Chinese Journal of General Practitioners 2009;8(2):129-131
Eleven elderly patients undergoing maintenance hemodialysis without ARB or ACEI within 4 weeks were enrolled. Anti-hypertensive agents were replaced by telmisartan gradually to maintain stable blood pressure. Before and after 6 or 12 weeks of treatment, blood biochemical profiles, fasting blood glucose, fasting plasma insulin, insulin resistance index(HOMA-IR), blood pressure, and body weight were recorded. Our results showed that telmisartan did not affect body weight, high-density lipoprotein (HDL), triglyceride (TG), SCr, BUN, Alb, K+ , and PTH, although led to a significant decrease in TC and low-density lipoprotein (LDL). Following telmisartan treatment, FPG did not change significantly, but fasting insulin decreased from 13.9±3.6 mU/ml to 9.9±2.7 or 9.1±2.3 mU/ml at 6 and 12 week (P<0.01), and HOMA-IR decreased from 3.5±1.4 to 2.4±0.8 or 2.2±0.8 at 6 and 12 week (P<0.05). These results suggest that insulin resistance in elderly patients with MHD may be improved by telmisartan.
9.Advances in the research of urethral tissue engineering and scaffold materials
Gangli GU ; Yingjian ZHU ; Guohua LIU
International Journal of Biomedical Engineering 2009;32(4):238-240
Urethral reconstruction is required in congenital abnormalities such as hypospadia and urethral stricture caused by trauma or infection. The development of tissue engineering has brought new hope to the field of urethral reconstruction. Much progress has been made in the experimental and clinical research of using tissue engineering for urethral reconstruction as well as the research of the scaffold materials. This review focuses on the recent progress in this field.
10.Statistical concepts related to negative clinical results.
Wei CHEN ; Guohua ZHENG ; Jianping LIU
Journal of Integrative Medicine 2011;9(5):487-490
It is a trend that clinical researchers overemphasize on hypothesis testing and the P value. However, P value has some limitations in the presentation of study results. Power is a tool for study design and results explanation, especially for negative results. Confidence interval contains more information for clinical results than P value. P value, power, and 95% confidence interval should be provided in the clinical reports to facilitate the interpretation of the results.