2.Cardiovascularpathology in China.
Chinese Journal of Pathology 2005;34(10):616-618
Animals
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Atherosclerosis
;
etiology
;
genetics
;
pathology
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China
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Coronary Disease
;
pathology
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Genes, p53
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Humans
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Point Mutation
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Risk Factors
3.Determination of N,N-dimethylformamide in Air by Capillary Gas Chromatography
Hanmei TIAN ; Rong CUI ; Ming RUAN
Journal of Environment and Health 2007;0(09):-
0.999) . The limit of detection was 4.0 ?10-4 ?g. The relative standard deviation was 0.9%-7.5% and the desorption efficiency of DMF was 86.5%-94.0%. Conclusion The method is applicable to the determination of DMF in the air.
4.Changes in phosphorylation of connexin43 in rats during acute myocardial hypoxia and effects of antiarrhythmic peptide on the phosphorylation.
Rong, WANG ; Cuntai, ZHANG ; Yanfei, RUAN ; Nian, LIU ; Lin, WANG
Journal of Huazhong University of Science and Technology (Medical Sciences) 2007;27(3):241-4
In order to confirm the hypothesis that during acute hypoxia, the antiarrhythmic peptide (AAP10) could improve conductance by changing the phosphorylation state of connexin43 (Cx43), isolated perfused rat hearts were randomly divided into three groups: control, hypoxia and AAP10 (n=9 in each group). The change in Cx43 phosphorylation was tested by Western-blot; the distribution of Cx43 was observed by confocal immunofluorescence microscopy. Western-blot analysis revealed that the expression of total Cx43 protein was significantly decreased during acute hypoxia, while nonphosphorylated Cx43 (NP-Cx43) was unchanged. AAP10 could increase the expression of total Cx43 protein, but had no effects on the NP-Cx43 protein. Immunofluorescence study showed that during acute hypoxia, both total Cx43 and NP-Cx43 proteins were greatly decreased, while AAP10 only increased the expression of total Cx43 protein, but had no effect of the NP-Cx43 protein expression. These findings suggested that the decrease of intercellular communication may be associated with the reduction of phosphorylated Cx43 (p-Cx43) and translocation of NP-Cx43 from the surface of gap junction into intracellular pools during acute hypoxia. AAP10 can improve intercellular communication by enhancing phosphorylation of Cx43.
5.Effect of chemotherapy on ovarian function in young patients with malignant germ cell tumors of the ovary after conservative surgery
Xiaohong RUAN ; Ping LI ; Yingrou RONG ; Ailian YANG
Clinical Medicine of China 2009;25(8):872-875
Objective To investigate the effect of chemotherapy on ovarian function in young patients with malignant germ cell tumors of the ovary after conservative surgery.Methods 15 patients (11~29 years old) with ovarian malignant germ cell tumors were treated by ovarectomy and the following chemotherapy.Their menstruation and serum follicle-stimulating hormone(FSH),luteinizing hormone(LH),estradiol(E2) levels and basal antral follicle(F0) numbers were observed from the duration of chemotherapy to one year after chemotherapy.The serum levels of FSH,LH,E2 and basal antral follicle numbers between the chemotherapy-related amenorrhea(CRA) patients and the patients with benign tumors of ovary who underwent unilateral adnexa removed at the same period(control group,n=10) were compared.Results Oligomenstruation occurred in 13 of 15 cases undergoing chemotherapy after conservative surgery(86.7%),in whom CRA occurred in 10 cases(66.7%) at the duration of 4-6 cycle chemotherapy appearing significantly rising serum level of FSH,LH and declining serum E2 level and F0 numbers.There was a significantly positive correlation between the frequency of amenorrhea and the duration of chemotherapy(r=1.000,P=0.01).Generally menstruation resumed around 2~3 months after chemotherapy.Ahhough the serum levels of sexual hormone seemed to be normal at half a year after chemotherapy in CRA patients,the serum FSH(8.30±1.46 mU/ml) and E2(80.50±7.86 ng/L) level were significantly increased as compared with that of the control group and the reverse was found in Fo numbers(3.80±1.04) (t Fo,FsH,E2=7.660,5.277,7.225;P F0,FSH,E2<0.001,<0.001,<0.001).One year after chemotherapy,serum hormone level and the ovary reserve function of the CRA patient came to be normal[FSH=(5.59±0.52)mU/ml,LH=(5.25±0.84)mU/ml,E2=(56.50±5.13)ng/L,Fo=(6.50±1.08)] and that of control group [FSH=(5.43±0.35)mU/ml,LH=(5.17±0.48)mU/ml,E2=(58.10±3.73)ng/L,F0=(6.60±0.97)](t=1.177,0.694,0.505,0.740;P>0.05,>0.05,>0.05,P>0.05).Conclusions Ovarian function impairment may occur in young patients in adolescence and sexual maturity period with ovarian malignant germ cell tumors who were treated by conservative surgery followed by chemotherapy.Although the CRA is reversible,the recovery of menstruation does not meail the recovery of ovarian funetion.because the ovarian impairment may continue to a duration of half a year after chemotherapy.The drug which can safeguard ovariall function should be considered during chemotherapy.
6.Sequence variability of human cytomegalovirus UL143 open reading frame gene in low-passage clinical isolates
Rong HE ; Qiang RUAN ; Ying QI ; Yanping MA ; Yaohua JI
Chinese Journal of Microbiology and Immunology 2009;29(6):491-494
Objective To explore the relationship between ULI43 sequence variability and clini-cal disease. Methods UL143 from samples obtained from suspected congenitally human cytomegalovirus (HCMV) infected symptomatic infants were PCR amplified and sequenced. Results There were not too much sequence variability of UL143 compared with Toledo. But no one was completely identical to Toledo, and all UL143 ORFs were shorter than Toledo for frame-shift. Conclusion HCMV-UL143 existed in moat of low passage isolates and sequences were variable. No obvious linkage was observed between UL143 poly-morphisms and outcome of suspected congenital HCMV infection.
7.Recent advances in studies on vascular progenitor cells.
Qiu-rong RUAN ; Yan LI ; Dan YAN
Chinese Journal of Pathology 2009;38(8):507-510
Animals
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Cell Differentiation
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Cell Movement
;
Chemokine CXCL12
;
metabolism
;
Endothelial Cells
;
pathology
;
physiology
;
Humans
;
Muscle, Smooth, Vascular
;
pathology
;
physiology
;
Receptors, CXCR4
;
metabolism
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Stem Cells
;
metabolism
;
pathology
;
physiology
;
Vascular Diseases
;
metabolism
;
pathology
;
physiopathology
8.The influence of Survivin in drug resistance of breast cancer cell.
Ping XIE ; Qiu-rong RUAN ; Jun-chuan LI
Chinese Journal of Pathology 2005;34(6):367-368
Antimetabolites, Antineoplastic
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pharmacology
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Apoptosis
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Breast Neoplasms
;
genetics
;
metabolism
;
pathology
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Cell Line, Tumor
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Drug Resistance, Neoplasm
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Female
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Fluorouracil
;
pharmacology
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Gene Expression Regulation, Neoplastic
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Humans
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Inhibitor of Apoptosis Proteins
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Microtubule-Associated Proteins
;
biosynthesis
;
genetics
;
physiology
;
Neoplasm Proteins
;
biosynthesis
;
genetics
;
physiology
;
Oligodeoxyribonucleotides, Antisense
;
genetics
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RNA, Messenger
;
biosynthesis
;
genetics
;
Transfection
10.Effect of Astragalus Injection with Heparin in Treatment of High Coagulable Blood in Children with Nephrotic Syndrome
jian-rong, LIN ; yan-xiang, RUAN ; yong, CHEN
Journal of Applied Clinical Pediatrics 1992;0(05):-
Objective To explore the effect of astragalus injection with heparin in treatment of children with nephrotic syndrome(NS) whose blood was high coagulable.Methods Seventy-two children suffering from NS, whose blood was high coagulable,were randomly divi-ded into 2 groups. The suffering children of 2 groups were given diuretic and anti-infective and hypotenive drugs, simultaneously taking prednisone 2 mg/( kg?d). In addition, the suffering children of therapeutic group was given astragalus injection 20 mL and heparin 100 IU/kg which were added in the glucose injection 200 mL absorbed by intravenous drop.They had blood test since they had taken the medicine once a day and maintained 2-4 weeks′ time.Results The suffering children′s PLT,febrinogen(Fbg) and prothrombin time(PT) of therapeutic group were all lowered down to normal quantity in 10 days but those of contrastive group in 2 weeks or more. The time of urinary protein′s vani-shing of the therapeutic group averages out to (8.9?4.1) d;but contrastive group became normal after 2 weeks and urinary albumen disa-ppeared in (12.8?6.2) d.Conclusions The astragalus injection with heparin is significant to shortening the course of treatment and redu-cing the relapse and preventing from thrombosis in the treatment of NS of suffering children whose blood is high coagulable.The treatment of anti-coagulation can be one of conventional plans.