1.MicroRNA-related pathways and tumorigenesis and tumor development
Journal of International Oncology 2012;39(8):566-569
Aberrant microRNA(miRNA) expression has been found in most of human cancers.miRNA-related regulation pathways,including the interaction between miRNA and protein-coding gene and the interaction between miRNA and IncRNA,have been shown correlated with the initiation and progression of human cancers.miRNA might be a therapeutic target in the treatment of malignancies.
2.Study on the relationship between serum surfactant protein and interstitial lung disease in systemic lupus erythematosus
Chinese Journal of Rheumatology 2009;13(5):320-323
Objective To investigate the relationship between serum surfactant protein-A (SP-A) and -D (SP-D) in patients with systemic lupus erythematosus (SLE) complicated with interstitial lung disease.(SLE-ILD) and its clinical significance.Methods Serum SP-A and SP-D levels of SLE patients and controis were assessed using a sensitive enzyme-linked immunosorbent assay (ELISA).The relationship between SP-A and SP-D and SLE-ILD,the correlation between SP-A and SP-D with age,disease activity index,pulmonary function test and high-resolution computed tomography (HRCT) score were analyzed.Results The level of serum SP-A and SP-D in patients with SLE is higher than that in healthy controls(P<0.05).The level of serum SP-A and SP-D in patients with SLE complicated with ILD was higher than that in patients without ILD and healthy controls (P<0.05).The level of serum SP-D in patients with SLE-ILD was correlated positively with HRCT score (r=0.508,P=0.004) and interstitial score (r=0.468,P=0.009),and it correlated inversely with vital capacity (%VC) (r=-0.590,P=0.001 ) and diffusing capacity of carbon monoxide (%DLCO)(r=-0.588,P=0.001 ).There was no correlation between the level of serum SP-A with SLE-ILD and HRCT score,%VC and %DLCO.The level of serum SP-D in patients with SLE-ILD correlated positively with serum IgG (r=0.376,P=0.040),and the level of serum SP-A in patients with SLE-ILD correlated positively with serum C reactive protein (CRP)(r=0.403,P=0.027).There was a positive correlation between the level of serum SP-D in patients with SLE and age (r=0.352,P=O.001 ).Conclusion The levels of serum SP-A and SP-D may be useful markers for ILD in patients with SLE.There is correlation between the level of serum SPD and HRCT score,pulmonary function test,and it is positively correlated with age and disease activity index.
3.Recent progress on angiotensin III.
Chinese Journal of Cardiology 2008;36(2):184-186
4.Correlation of autophagy-associated gene Atg5 with tumorigenesis of prostate cancer.
Xin LI ; Ci LI ; Lu-hong ZHU
National Journal of Andrology 2015;21(1):31-34
OBJECTIVETo investigate the correlation of the autophagy-associated gene Atg5 with the pathogenesis of prostate cancer.
METHODSUsing real-time fluorescent quantitative reverse transcriptase polymerase chain reaction (qRT-PCR) and immunohistochemistry, we detected the expression of Atg5 in 50 cases of prostate intraepithelial neoplasm (PIN), 69 cases of prostate cancer (PCa), and 30 cases of benign prostatic hyperplasia (BPH).
RESULTSThe expression level of Atg5 mRNA was significantly higher in PIN (5.270 ± 0.230) and PCa (5.131 ± 0.252) than in the BPH tissue (1.723 ± 0.017) (P <0.01), and so was the positive rate of the Atg5 expression in the patients of the PIN group (94%) and PCa group (88.4%) than in those of the BPH group (6.7%) (P<0.01), but with no statistically significant differences between the PIN and PCa groups (P >0.05). No significant correlation was observed between the expression of Atg5 and the Gleason score of PCa (P >0.05).
CONCLUSIONThe upregulated expression of Atg5 might play a role in the tumorigenesis of prostate cancer.
Aged ; Autophagy ; Autophagy-Related Protein 5 ; Humans ; Immunohistochemistry ; Male ; Microtubule-Associated Proteins ; genetics ; Middle Aged ; Prostatic Hyperplasia ; genetics ; Prostatic Neoplasms ; genetics ; RNA, Messenger ; metabolism ; Reverse Transcriptase Polymerase Chain Reaction ; methods ; Up-Regulation
5.Effect of plant estrogen on serum hormone levels, NOS and oxidative stress products in patients with uterine fibroids with iron deficiency anemia
Yanping HU ; Lu LI ; Xin LI
Chinese Journal of Biochemical Pharmaceutics 2015;37(7):113-115
Objective To investigate the effect of plant estrogen on serum hormone levels, NOS and oxidative stress products in patients with uterine fibroids with iron deficiency anemia.Methods 80 cases of hysteromyoma patientswith uterine fibroids with iron deficiency anemia were selected, according to the different medication were randomly divided into experiment group and control group,40 cases in each group.Two groups were treated with anemia correction , mifepristone oral ,and the experiment group were treated on the base of the control group with plant estrogen, 12 weeks for a course.serum sex hormone, NOS, SOD and MDA level were detected.ResuIts Compared with the control group, the indexes of patients in the experimental group were lower(P<0.05), level of serum NOS were higher(P<0.05), level of serum SOD were higher(P<0.05), level of serum MDA were lower ( P<0.05 ) .ConcIusion Plant estrogen can improve the serum levels of serum hormone, NOS and oxidative stress levels of the treatment of uterine fibroids, worthy of clinical promotion.
7.Effect of Endurance Training on the Cardiac Akt/mTOR Signaling Pathway in Aged Mice
Xin LI ; Shuzhe DING ; Jian LU
Chinese Journal of Sports Medicine 2010;(1):38-41
Objective To study the effect of endurance training on the cardiac Akt/mTOR signaling pathway in aged mice.Methods Male 2-month.old SAMP8 mice were randomly divided into young control group(YC)(n=12),endurance training group(E)(n=12)and aged control group(AC)(n=12).The group YC was executed at three-month old;and the group AC was executed at six-month old.The group E underwent a 3-month endurance training program (three times per week,40min once a day).After completion of the training program,the ratio of hean mass to body mass(heart mass/body mass)was measured,cardiac tissue of each group was observed using the HE stain,and the mRNA expressions of Akt,mTOR,p70S6K and eIF-4E in mouse heart of each group were analyzed using the real-time PCR.Results The heart weight and the heart weight/body weight ratio significantly increased in group E comparing with that in group AC(P<0.05)without any pathological change.The mRNA expressions of Akt,mTOR, p70S6K and eIF-4E in group AC decreased more significantly than that in group YC(P<0.05).The expression of targets in group E increased more significantly than that in group AC(P<0.05),however,there was no significance difference between group E and group YC.Conclusion Endurance training can elevate the cardiac Akt/mTOR signaling pathway expression,produce exercise-induced cardiac hypertrophy for aged mice.
8.Differential expression of Ezrin in cervical cancer tissues and the relationship between Ezrin and PCNA, MMP-2, MMP-9, HPV
China Oncology 2013;(11):904-909
Background and purpose:Previous studies have revealed potential roles for Ezrin in a variety of cancers. Ezrin participates in several functions including cell adhesion, motility and cell survival, and there is increasing evidence that it regulates tumour progression. This study aimed to determine the differential expression of Ezrin between cervical cancer tissues and normal controls and to explore the association of Ezrin expression with clinical pathological characteristics and with the expression of PCNA, MMP-2, MMP-9 and HPV E6 protein. Methods:Retrospective study was performed among 30 cervical cancer tissue samples which were diagnosed in our hospital from Jan. 2002 to Dec. 2006. Ten normal cervixes from uterine myomas were employed as normal controls. Semi-quantitative immunohistochemisty analysis was performed to detect the association of Ezrin expression with clinical pathological characteristics, and with expression of PCNA, MMP-2 and MMP-9, HPV E6 protein in cervical cancer tissue and normal controls. Analyze the association of Ezrin expression with the clinical characteristics. Results:The expression of Ezrin was strong and the distribution was diffuse mainly in the cytoplasm and membrane in cervical cancer tissues, while the normal cervical tissues was weak and mainly in the membrane. However, there was no signiifcant association between the expression of Ezrin and the clinical characteristics including tumor stage, histology and grade. Ezrin expression was positively correlated with the expression of MMP-2, MMP-9 and HPV E6 protein in cervical cancer tissues, except PCNA. Conclusion:Ezrin was over-expressed in cervical cancer tissues and may be involved in the progress of invasion and metastasis in cervical cancer.
9.Nutritional support in chronic liver disease
Chinese Journal of Clinical Nutrition 2011;19(3):135-139
Malnutrition is common among patients with liver disease, and its severity directly influences the short-term survival. As an important approach for chronic liver disease, nutritional support is especially necessary for long-term rehabilitation and treatment. Many methods (e. g. direct human body measurement, biochemical indicator determination, immunological indicators, nutrition assessment tools, and human composition determination) can be applied for the nutritional status evaluation. Based on the specific disease condition and the patient's tolerance, nutritional supports (with proper nutritional substances and administrative route) should be provided individually.
10.Relationship between medical students' non-intelligence factors and academic records
Xin LI ; Zhansong ZHOU ; Gensheng LU
Chinese Journal of Medical Education Research 2012;11(8):873-876
ObjectiveTo clarify the effect of medical students' non-intelligence factors on their academic records.MethodsTotally 104 medical students' non-intelligence factors and surgical academic records were collected and relationship between them was studied.Results① There were significant differences in academic records between students with different non-intelligence levels( F =4.21,P<0.05 );better academic records were achieved in those with higher non-intelligence level than in those with good and poor non-intelligence level ( P < 0.05 ).② There were significant differences in post clinical internship academic records between students with different non-intelligence levels ( F =8.65,P <0.01 ),better academic records were achieved in those with higher and good non-intelligence level( P <0.01,P < 0.05 ).③ Medical students with higher and good non-intelligence level got obvious improvements in academic records after clinical internship,while students with medium non-intelligence level showed no difference ( P > 0.05).ConclusionsMedical students' non-intelligence factors have obvious effect on their academic records.Keeping students' non-intelligence factors properly could improve their academic records.