1.Investigation and analysis in the sexual life quality of females at the reproductive ages after cervix cancer operation
Meiling SUN ; Chunyan MENG ; Meimei LIU ; Li LU
Chinese Journal of Practical Nursing 2008;24(9):16-17
Objective To explore the sexual life quality of females at the reproductive ages after cervix cancer operation and supply evidence for establishment of correspondindg nursing measure. Methods We investigated the frequency of sexual life and satisfaction degree of sexual life in 40 females at the reproductive ages after cervix cancer operation by face-to-face investigations using questionnaires before and 4 months after operations. Then the difference of sexual life quality before and after operation were compared and analyzed. Results The frequency of sexual life (P<0.01,P<0.05) and satisfaction degree of sexual life (P<0.01,P<0.05) were evidently decreased. The sexual life quality was lower than that before operation. Conclusion The sexual life quality could be affected by many factors such as economic conditions, culture background, sexual conceptions and the attitude of their partners.
2.Value of RDW for predicting death risk in acute pancreatitis and its correlation with Ret parameters
Xingwei LUAN ; Meng HUANG ; Meiling SUN ; Fei HUANG ; Jiajin YANG
International Journal of Laboratory Medicine 2017;38(4):439-441
Objective To investigate the value of RDW for predicting death risk in the patients with acute pancreatitis (AP) and its correlation with the Ret parameters.Methods A total of 164 patients with AP in the emergency surgery of Second Xiangya Hospital of Central South University from March 2015 to May 2015 were selected ,including 151 survival cases and 13 death cases , and other 175 healthy people were selected as the control group.The venous blood was collected for detecting whole blood RDW and Ret parameters by using the Sysmex XN-1000 automatic blood analyzer.The inter-group comparison was performed by Mann-Whitney U and Kruskal-Wallis H tests ;the diagnostic value of RDW for AP death risk was evaluated by receiver operating charac-teristic(ROC) curve and area under curve(AUC).Results The RDW level in the AP death group was[15.7% (14.1% -21.8% )] , which was significantly higher than that of AP survive group [13.3% (12.7% -14.5% )] ,the difference was statistically significant (Z=40.02 ,P<0.05);AUC of RDW ROC curve for diagnosing death risk was 0.835(95% CI:0.786-0.951);With the cutoff val-ue of RDW for diagnosing the AP death risk as ≥14.5% ,the sensitivity was 71.43% (95% CI:41.90% -91.60% )and specificity was 89.40% (95% CI:83.40% -93.80% );the RDW level of AP patients was positively correlated with Ret% ,IFR ,MFR and HFR(r=0.376 ,0.502 ,0.468 ,0.475 ,P<0.01) ,and was negatively correlated with LFR (r= -0.502 ,P<0.01).Conclusion The RDW level is a good indicator for early predicting AP death risk ,its elevated degree is closely correlated with Ret generation.
3.Application of matrix-assisted laser desorption ionization-time of flight mass spectrometer in identification of clinical common bacteria
Bing WANG ; Xiaoqing REN ; Meiling CHU ; Liu YANG ; Xiangyu SHENG ; Lianqing ZHOU ; Wencheng XUE ; Dongya MENG
International Journal of Laboratory Medicine 2014;(16):2228-2230
Objective To evaluated the application value of two kinds of mass spectrometer(MS)and Vitek MS system in the i-dentification of routinely isolated bacteria in clinic.Methods 149 strains of common bacteria(including 14 genera and 30 species)i-solated from blood,urine,cerebral spinal fluid,secretion and sputum samples in our hospital from March 2012 to January 2013 were collected and simultaneously identified by 2 kinds of matrix-assisted laser desorption ionization-time of flight mass spectrometer (MALD-TOF-MS).The identification results were compared with those identified by the conventional biochemical identification (Vitek2 compact).The strains with the inconsistent results identified by 3 kinds of method were confirmed by 16S rDNA gene se-quencing.Results Among 149 common bacteria,the correct identification rates of genus and species by the Bruker Biotyper MS were 98% and 96% respectively and which by the Vitek MS system were 97% and 95% respectively.There were no misidentified bacterial strains by these two kinds of MS.Conclusion No statistical difference in the identification results was observed between these two kinds of MS system(P >0.05).Both exhibit excellent identification level and are suitable for the routine laboratory iden-tification of clinical microorganism.
4.Expressions of PAX-2 and PTEN in endometrial lesions and their correlation with endometrial intraepithelial neoplasia
Yiting MENG ; Donglin MA ; Li LI ; Jingjing YAO ; Meiling MAO ; Jianghui YANG ; Wei WANG ; Hongfang YIN
Cancer Research and Clinic 2017;29(1):27-31
Objective To observe the expression of PAX-2 and PTEN in different types of endometrial lesions, and to study their relationship with endometrial intraepithelial neoplasia (EIN). Methods 60 cases of endometrial hyperplasic lesions and 70 cases of endometrial carcinoma were enrolled. All cases were reclassified by using the diagnostic criteria of EIN, and PAX-2 and PTEN were stained to compare the difference among them. Results The deletion rates of PAX-2 in benign hyperplasia, EIN and endometrial carcinoma were 39.5 % (15/38), 72.7 % (16/22) and 78.6 % (55/70), respectively, and there was a statistical difference (χ2= 21.664, P= 0.000). The deletion rates of PTEN in benign hyperplasia, EIN and endometrial carcinoma were 47.4%(18/38), 54.5%(12/22) and 75.7%(53/70), respectively, and there was no statistical difference (χ2=2.878, P=0.411). Conclusion The staining of PAX-2 could be considered as a reliable adjuvant diagnostic method in the diagnostic criteria of EIN, however, the loss of PTEN just should be regarded as a suggestion of EIN, not a confirmed diagnostic basis.
5.Research progress on the mechanism of type H vessels in improving bone loss
Meiling CHU ; Hongfeng CHEN ; Yulian YIN ; Tian MENG
Chinese Journal of Orthopaedics 2022;42(22):1523-1530
In skeletal system, the coupling effect between angiogenesis and osteogenesis can promote bone growth and maintain bone mass balance. Type H vessel is a special capillary subtype in bone with high expression of Endomucin (Emcn) and CD31. The essence of type H vessel is vascular endothelial cells, mainly distributed in the metaphysis, surrounded by bone progenitor cells, which mediates the coupling mechanism of angiogenesis and osteogenesis, involving a variety of cytokines and signaling pathways. Factors including platelet-derived growth factor type BB, slit guidance ligand 3, hypoxia-inducible factor 1-alpha, Notch, and vascular endothelial growth factor are involved in the coupling of angiogenesis and osteogenesis. Type H vessels transmit signals through a variety of cytokines to enhance the connection between angiogenesis and bone formation, thus regulating bone growth and bone homeostasis. In addition, this article discusses the research prospects of improving bone loss by using it as a target, so as to provide reference for clinical bone injury repair and anti-osteoporosis treatment.
6.Effect of PDCA mode on shortening blood transfusion waiting time in hematology ward
Ying ZHANG ; Xue TANG ; Liqiu ZHANG ; Dongmei CAO ; Xueyan LIU ; Yanan ZHU ; Meng GUO ; Meiling ZHANG ; Qianqian LI ; Xiaoting LI ; Jing ZHAO
Chinese Journal of Practical Nursing 2020;36(23):1801-1804
Objective:To analyze the application of PDCA mode in the management of blood transfusion waiting time.Methods:Using random block design, 98 patients received blood transfusion during January to December 2018 were included into the before improvement; 32 patients received blood transfusion during January to June 2019 were included into the after improvement. Standard process of blood taking and transfusion was applied to the before improvement, while based on standard process, found out the deficiencies in the previous clinical practice, continuously improved the details of the process for the after improvement. Then blood transfusion waiting times were compared between the two groups.Results:The blood transfusion waiting time was (26.95±9.20) min before improvement and (25.59±4.16) min after improvement, with a significantly lower disqualification rate 6.25% (2/32) comparing with 26.53% (26/98) before improvement. The differences were statistically significant ( t value was 3.75, P<0.01; χ2 value was 5.87, P<0.05). Conclusions:The application of PDCA circulation management mode can shorten the blood transfusion waiting time and transfusion can be made within 30 minutes after blood taking so that nursing quality of transfusion in the ward can be improved.
7.Application of biomimetic nano drug delivery system of macrophage membrane in disease targeted therapy
Chanlian LI ; Jiamin SONG ; Meiling CHEN ; Xiaoliang REN ; Meng WANG
China Pharmacy 2022;33(18):2290-2294
In recent years ,biomimetic nanodelivery system based on cell membrane coating has developed rapidly and shows better biocompatibility and efficacy than traditional nanodelivery systems in a variety of diseases . Macrophages,as members of the immune system ,are closely related to the occurrence and development of a variety of diseases . Macrophages are derived from monocytes and can be polarized into M 1 and M 2 types after corresponding stimulation : M1 macrophages involved in the proinflammatory reaction and M 2 macrophages involved in the inflammatory reaction . This paper reviews the application status of biomimetic nanoparticles coated with macrophage membrane in disease targeted therapy in recent years . Biomimetic nanoparticles coated with macrophage membrane has shown its high targeting and low immunogenicity in the treatment of malignant tumors (breast cancer ,colorectal cancer ,melanoma,glioma),Alzheimer’s disease ,liver ischemia -reperfusion injury ,atherosclerosis and so on . However,the research of Biomimetic nanoparticles coated with macrophage membrane currently focuses on anti -tumor research and is still in the laboratory research stage .
8.Discussion on Ethical Issues in the Diagnosis and Treatment of Vagrant Psychiatric Patients
Chongze WANG ; Mingliang JU ; Meiling MENG ; Lei CAI ; Lin HE
Chinese Medical Ethics 2017;30(12):1500-1504
As one of special groups in social groups,vagrant psychiatric patients have uniqueness.There are many ethical issues in their diagnosis and treatment,such as voluntary principles and involuntary medical treatment,protective constraints,patient's privacy protection,personalized treatment,fairness and so on.Therefore,to protect the fights and interests of psychiatric patients,it should strictly follow the standard of involuntary hospitalization and four principles of medical ethics when they are admitted to hospital;it should give protective constraints and make the diagnosis of mental disorder when they exist impulses and negative risks involved themselves or others.Meanwhile,it should give psychological counseling,take minimum limit to patient as principle,develop personalized treatment plan,provide humanity service,pay attention to the protection of privacy rights and promote early recovery of patient.
9.GID complex regulates the differentiation of neural stem cells by destabilizing TET2.
Meiling XIA ; Rui YAN ; Wenjuan WANG ; Meng ZHANG ; Zhigang MIAO ; Bo WAN ; Xingshun XU
Frontiers of Medicine 2023;17(6):1204-1218
Brain development requires a delicate balance between self-renewal and differentiation in neural stem cells (NSC), which rely on the precise regulation of gene expression. Ten-eleven translocation 2 (TET2) modulates gene expression by the hydroxymethylation of 5-methylcytosine in DNA as an important epigenetic factor and participates in the neuronal differentiation. Yet, the regulation of TET2 in the process of neuronal differentiation remains unknown. Here, the protein level of TET2 was reduced by the ubiquitin-proteasome pathway during NSC differentiation, in contrast to mRNA level. We identified that TET2 physically interacts with the core subunits of the glucose-induced degradation-deficient (GID) ubiquitin ligase complex, an evolutionarily conserved ubiquitin ligase complex and is ubiquitinated by itself. The protein levels of GID complex subunits increased reciprocally with TET2 level upon NSC differentiation. The silencing of the core subunits of the GID complex, including WDR26 and ARMC8, attenuated the ubiquitination and degradation of TET2, increased the global 5-hydroxymethylcytosine levels, and promoted the differentiation of the NSC. TET2 level increased in the brain of the Wdr26+/- mice. Our results illustrated that the GID complex negatively regulates TET2 protein stability, further modulates NSC differentiation, and represents a novel regulatory mechanism involved in brain development.
Animals
;
Mice
;
DNA-Binding Proteins/genetics*
;
Cell Differentiation
;
Neural Stem Cells
;
Translocation, Genetic
;
Ubiquitins/genetics*
;
Ligases/genetics*
10.Literature Analysis of the Selection of Tyrosine Kinase Inhibitors for Chronic Myeloid Leukemia Patients with BCR-ABL35INS Mutation
Meiling YAN ; Meng ZHANG ; Lin HUANG ; Yueping JIA ; Yi ZHANG ; Wanyu FENG ; Hui’er GAO
China Pharmacy 2019;30(12):1675-1678
OBJECTIVE: To provide reference for reasonable selection of tyrosine kinase inhibitors (TKI) in chronic myeloid leukemia (CML) patients with BCR-ABL35INS mutation. METHODS: Using “BCR-ABL insertional mutation” “ABL1 35ins mutation” “BCR-ABL c.1423_1424ins35” “ABL1 p.C475Tyrfs*11” as keywords, retrieved from CNKI, Wanfang database, Medline and COSMIC database, BCR-ABL35INS mutation CML patients were summarized and analyzed in respects of general information and treatment (treatment plan, patient compliance and drug withdrawal), therapeutic effect (molecular biological mitigation and disease progress) and safety data (ADR) during 2007-2018. RESULTS: Totally 9 related literatures were included, involving 70 patients with BCR-ABL35INS mutation, all of them were foreign cases. Among them, 39 cases were male and 31 cases were female, with a median age of 49.2 years. The median time from the diagnosis of CML to the detection of BCR-ABL35INS mutation was 19 months. After detecting gene mutation, 39 cases were treated with imatinib (initial dose of 400 mg, po, once a day), and molecular biological remission was achieved in 5 patients (12.9%); 15 cases (38.5%) had molecular biological response but had disease progression; 8 patients (20.5%) had no response. Seventeen patients were treated with dasatinib (100 mg, po, once a day or 2 divided dose), and 8 cases (47.1%) achieved molecular biological response. Twenty-one patients were treated with nilotinib (400 mg, po, 2 divided dose), and 3 patients (14.3%) achieved molecular biological response; 2 patients achieved molecular biological response, but the disease progressed. Seven, three and seven of these patients stopped taking drugs due to adverse reactions, accounting for 17.9%, 17.6% and 33.3% respectively. All the ADRs were classified as grade 3-4 of the National Cancer Institute’s Common Terminology Criteria for Adverse Events, and most of them were hematological toxicity. CONCLUSIONS: CML patients with BCR-ABL35INS mutation are less likely to achieve molecular response on imatinib therapy but are more sensitive to dashatinib. In the course of treatment, we should strengthen the monitoring of blood system and other related indicators to ensure the safety and effectiveness of drug use.