1.Perioperative observation and nursing of male patients with breast cancer
Yun ZHENG ; Yiqun ZHOU ; Yaojin ZHANG
Modern Clinical Nursing 2013;(1):40-42
Objective To summarize the perioperative nursing of male patients with breast cancer.Methods Retrospectively, the clinical data of 9 male patients with breast cancer undergoing radical mastectomy from January 1990 to July 2011 were analyzed to summarize the perioperative nursing strategies.Result The radical mastectomy for the 9 patients was successful.2 patients contracted complications as hemorrhage in 1 case and flap necrosis in 1 case.Conclusion The perioperative nursing should be performed based on the characteristics of male patients with breast cancer.
2.Inhibition of gene p15 hypermethylation by phenylhexyl isothiocyanate in Molt-4 cells
Xudong MA ; Shaohong JIANG ; Yiqun HUANG ; Yunlu XU ; Ruiji ZHENG
Journal of Leukemia & Lymphoma 2009;18(2):79-82
Objective To investigate the effect of phenylhexyle isothiocyanate (PHI) on demethylation and activation of transcription gene p15 in acute leukemia cell line Molt-4. Methods DNA sequencing and modified methylation specific PCR (MSP) were used to screen p15-M and p15-U mRNA after Moh-4 cells were treated with PHI. P15 mRNA was measured by RT-PCR. Pl5 protein was detected by Western blotting. Results Hypermethylation of gene pl5 was apparently attenuated and activation of transcription p15 gene was de novo after 5 days exposure to PHI. PHI enhanced both the expression of p15 mRNA and p15 protein in a concentration-dependent manner. The ratio of the gray scale of p15 mRNA strap was 0.17±0.12 in control, 0.29±0.14 in PHI 10 μmol/L, 0.55±0.07 in PHI 20 μmol/L, 0.93±0.13 in PHI 40 μmol/L. Conclusion PHI could active demethylation and transcription of gene p15.
3.Study on histone acetylation modulation and Akt signaling pathway inhibition by phenyhexyle isothiocyanate in prostate cancer PC3 cell line
Zhiming ZHUANG ; Xudong MA ; Yiqun HUANG ; Zhouda ZHENG ; Yacai ZHENG ; Shaohong JIANG
Chinese Journal of Urology 2010;31(10):707-709
Objective To investigate phenyhexyle isothiocyanate (PHI) modulating histone acetylation and inhibiting Akt signaling pathway in prostate cancer cell line PC3 in vitro. Methods Apoptotic cells were measured by TUNEL assay. Histone acetylated H3, H4 and the Akt protein signaling pathway (Akt, p-Akt, mTOR, p-mTOR, p70S6K and p-p70S6K) were detected by Western blot. Results Apoptotic cells increased after exposure to PHI with concentration dependent. PHI significantly induced an accumulation of histone acetylated H3, H4. The change of Akt, mTOR, p70S6K proteins was not observed. Phosphorylation of Akt (p- Akt), mTOR (p-mTOR) and p70S6K (p-p70S6K) decreased after exposure to PHI for 7 h. Conclusions PHI can induce histone acetylation H3, H4 accumulation. PHI inhibits Akt signaling pathway resulting cell apoptosis. It might be a new anticancer agent.
4.The influence of hobiletin on the cognitive impairment of diabetic rats and the expression of Nrf-2 in hippocampus
Hongrui ZHANG ; Yiqun ZHAO ; Xiaohong GAO ; Chunmei LIU ; Chunxia LI ; Jia ZHENG
Chongqing Medicine 2017;46(6):732-734
Objective To explore the Hobiletin improving cognitive function and the possible mechanism to protect the hippocampal neurons.Methods Eight of Wistar rats,SPF,12 weeks of age,male,were set to the normal group;Eight of GK male rats,SPF,12 weeks of age,only for diabetes group;Both of the two groups were given the normal feed.6 of GK male rats,12 weeks of age,to feed Hobiletin of orange peel 10 mg/kg and lavage for 8 weeks,were set to the NOB group.After 22 weeks the rats were tested by Morris water maze behavior experiment for test the ability of learning and memory;the expression of Nrf-2 was detected by immunohistochemistry and Western Blot.Results Compared with the normal group,the incubation period of diabetes group was longer (P<0.05),and theescape latency of NOB group was shorter than that of diabetes group (P<0.05).Compared with the normal group,the residence time in the target quadrant was shorter in the diabetes group (P<0.05),and prolonged in the NOB group than in the diabetes model group (P<0.05).The expression of Nrf-2 in diabetes group was significantly higher than that in diabetes group (P<0.05).The expression of NH-2 in NOB group was significantly higher than that in diabetes group (P<0.05).Conclusion NOB can increase the expression of Nrf-2 in hippocampus and improve the cognitive function of diabetic rats,which may be related to the enhancement of Nrf-2 activity and the activation of anti-oxidative stress pathway.
5.The clinical application of nephron-sparing surgery (NSS)in selective T2 renal cell carcinoma
Yaqiang HUANG ; Hongxing HUANG ; Shaopeng QIU ; Runqiang YUAN ; Wei LI ; Yiqun ZHENG ; Weide ZHONG
Chinese Journal of Urology 2016;37(6):411-414
Objective To investigate the safety and efficacy of nephron-sparing surgery (NSS)for selective T2 stage renal tumor.Methods The surgical database of 26 patients treated with NSS for clinical T2 stage renal cell carcinomas between March 2010 and May 2013 were collected and analyzed retrospectively.There were 17 males and 9 females,with a mean age of 52 years (39-74 years),mean tumor size of 10.3 cm(7.2-16.5 cm),and mean R.E.N.A.L score of 7.5 (6-10).Patients'demographics,clinical characteristics,oncologic outcomes,renal function were reviewed.Results The renal masses were removed successfully and the surgical margins were negative.There were 21 (80.8%) cases of clear cell carcinoma,4 (15.4%) papillary carcinoma and 1 (3.8%) chromophobe carcinoma.The mean ischemia time was (28.3 ± 12.5) minutes (7 patients were clamp-free).Three patients needed transfusion,one experienced urine fistula and cured by conservative treatment,and one patient's renal function got progressive worsening and required long-term hemodialysis.The average serum creatinine was 121 μ mol/L before and 136 μmol/L after surgery (P =0.06).After a period of 22-47 months' follow-up,no patient had local recurrence or metastasis.Conclusions NSS can be safely performed and provide effective oncologic outcomes for selective patients with clinical T2 stage renal cell carcinomas.R.E.N.A.L nephrometry is an important factor and should be used to evaluate the feasibility of NSS.
6.Antiproliferative effect of silencing LSD1 gene on Jurkat cell line and its mechanism.
Shiwei HAN ; Yiqun HUANG ; Ruiji ZHENG
Chinese Journal of Hematology 2016;37(1):56-60
OBJECTIVETo investigate the effect of silencing LSD1 gene by RNA interference on the proliferation, apoptosis on human lymphocytic leukemia Jurkat cell line and its mechanism.
METHODSThe hairpin- like oligonucleotide sequences targeting LSD1 gene was transfected into Jurkat cells by lipofectamine(TM) 2000. The LSD1 mRNA and protein were detected by RQ- PCR and Western blot. Cell growth was determined by MTT. Cell apoptosis was analyzed by flow cytometry. The expression of Bcl-2, Bax, procaspase- 3, and histone H3K4me, H3K4me2, H3K4me3, Act- H3, H3K9me were detected by Western blot.
RESULTSLSD1 mRNA was markedly suppressed by the shRNA targeting LSD1. LSD1 shRNA suppressed the proliferation and induced cells apoptosis of Jurkat cells. The cell apoptotic rate was (41.34±3.58)%, (3.45±1.54)%, (1.76±0.52)% in LSD1 shRNA, Neg-shRNA and Blank respectively, the difference among them was statistically significant (P<0.05). LSD1 shRNA down- regulated the expressions of Bcl- 2 and procaspase- 3, and up- regulated the expression of Bax. The methylation of H3K4me1, me2 and acetylation of Act- H3 improved without change of the methylation of H3K4me3.
CONCLUSIONSDeplete of LSD1 gene maybe through modifying the methylation of histone H3K4 to promote the cell apoptosis and inhibit cell growth in Jurkat cell line.
Acetylation ; Apoptosis ; Caspase 3 ; metabolism ; Cell Cycle ; Cell Line, Tumor ; Cell Proliferation ; Down-Regulation ; Histone Demethylases ; genetics ; Histones ; metabolism ; Humans ; Jurkat Cells ; Methylation ; Proto-Oncogene Proteins c-bcl-2 ; metabolism ; RNA Interference ; RNA, Messenger ; RNA, Small Interfering ; Transfection
7.Construction of a GFP/Puro double-labeled lentiviral vector containing CK8 interfering RNA and its effect on cell apoptosis in vitro.
Yanchao JIN ; Ronghua YIN ; Weiwei ZHENG ; Xiangzhen KONG ; Yiqun ZHAN ; Xiaoming YANG ; Changyan LI
Journal of Southern Medical University 2013;33(12):1761-1765
OBJECTIVETo construct a GFP/Puro double-labeled lentiviral expression vector for CK8 silencing and assess the effects of CK8 silencing on cell apoptosis.
METHODSThe siRNA sequences of CK8 were inserted into the lentiviral expression vector GV248 and transfected into 293T cells with the packaging plasmids PMD and SPA. The lentivirus was collected at 24 and 36 h post-transfection. Flow cytometry was used to detect the virus titer and the positive cells were selected with puromycin. The knockdown of CK8 was examined by Western blotting. The effect of CK8 down-regulation on cell apoptosis induced by cisplatin was detected with Annexin V/PI staining.
RESULTS AND CONCLUSIONWe successfully constructed CK8 interference lentiviral vector and obtained a stable cell line with CK8 knock-down that was sensitive to cisplatin-induced apoptosis.
Apoptosis ; Cell Line ; Down-Regulation ; Genetic Vectors ; Humans ; Keratin-8 ; genetics ; Lentivirus ; Plasmids ; RNA Interference ; RNA, Small Interfering ; Transfection
8.Effect of miR-599 expression changes on proliferation and invasion of ovarian cancer cells
Feng WEI ; Jin ZHANG ; Yiqun ZHANG ; Rong ZHENG
Journal of Chinese Physician 2020;22(8):1220-1224
Objective:To investigate the expression of microRNA (miR)-599 in ovarian cancer and its effect on the proliferation and invasion of ovarian cancer cells.Methods:Quantitative real-time quantitative polymerase chain reaction (qPCR) was used to detect the expression of miR-599 in 36 cases of ovarian carcinoma and paracancerous tissues, ovarian cancer cell lines and normal ovarian epithelial cells. The miR-599 inhibitor (experimental group) and the negative control miR-NC (control group) were transfected into the ovarian cancer cell line A2780, respectively. qPCR was used to detect the transfection efficiency. Bioinformatics technology was used to predict and screen candidate target genes of miR-599, and dual luciferase reporter gene analysis system was established to verify the direct targeting effect of miR-599 on candidate target genes. qPCR and Western blot were used to detect the mRNA and protein expression changes of target genes. Cell counting (CCK-8) and transwell invasion assays were used to detect the effect of miR-599 on proliferation and invasion of A2780 cells.Results:qPCR results showed that the expression of miR-599 in ovarian cancer tissues was higher than that in paracancerous tissues ( P<0.01). The expression level of miR-599 in ovarian cancer cells was higher than that in normal ovarian epithelial cells ( P<0.05). The opioid binding protein (OPCML) is a candidate target gene for miR-599. The dual luciferase reporter assay confirmed that miR-599 can directly target the 3′-untranslated region (3′-UTR) of the OPCML gene ( P<0.01). After down-regulation of miR-599 expression, the mRNA and protein expression levels of OPCML in A2780 cells decreased ( P<0.01); the expression of cell cycle regulatory proteins such as CDK4 and cyclin D2 was decreased; the expression of negative regulatory protein E-cadherin was increased, and the expression of positive regulatory protein N-cadherin was decreased; the proliferation and the invasion ability of A2780 cells decreased ( P<0.05). Conclusions:miR-599 is highly expressed in ovarian cancer tissues and cell lines. Down-regulation of miR-599 expression in ovarian cancer cells A2780 can inhibit the proliferation and invasion of ovarian cancer cells by increasing OPCML gene expression.
9.Prenatal diagnosis and genetic analysis of three fetuses with paternal chromosomal simplex 3q microduplication syndrome.
Laiping ZHENG ; Congmian REN ; Fangmei XU ; Li GUO ; Ting WANG ; Yiqun HE
Chinese Journal of Medical Genetics 2022;39(12):1406-1409
OBJECTIVE:
To explore the phenotypic characteristics of paternal chromosomal simplex 3q microduplication syndrome.
METHODS:
Amniotic fluid samples of 3 fetuses from a same couple were subjected to prenatal diagnosis through combined high-resolution chromosomal G-banding karyotyping and chromosomal microarray analysis (CMA). Peripheral blood samples were also collected the couple for the determination of parental origin.
RESULTS:
The karyotypes of all three fetuses were 46,XN,dup(3)(q25q26.1), and their CMA results were arr[hg19]3q25.33q26.1(159 336 333-166 924 969)×3. The duplication in the three fetuses have all derived from their father. No anomaly with found with the mother by CMA .
CONCLUSION
Through combined G-banded chromosomal karyotyping and CMA assay, a paternally derived 3q25.33-q26.1 microduplication has been identified, which has enabled genetic counseling for this couple.
Female
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Pregnancy
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Humans
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Prenatal Diagnosis
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Genetic Testing
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Mothers
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Fathers
10.Construction and Application of Operation Quality and Effectiveness Evaluation Index System of Compact City Medi-cal Group
Yilan ZHU ; Zhengbing WANG ; Yiqun ZHENG ; Xiao ZHU ; Mingwei YANG ; Ye HAN
Chinese Health Economics 2024;43(2):24-28
Objective:To construct an evaluation index system of operation quality and effectiveness of compact urban medical groups and provide references for evaluation of compact urban medical groups.Methods:The evaluation index system was constructed by Delphi method,and the weight was determined by analytic hierarchy process.Results:The evaluation index system consisted of 5 primary indexes,12 secondary indexes and 40 tertiary indexes.Providing assessment methods for the construction of medical groups,the evaluation index system is scientific and authoritative.Conclusion:At the initial stage,policy support should be strengthened,innovative governance mechanisms should be explored,and measures such as implementing a community of responsibilities,strengthening information interconnection,and improving profit distribution mechanisms should be taken to gradually promote the construction of close urban medical groups.