1.Expression of SNRPA and related molecular mechanisms in gastric cancer
Sijia WANG ; Min CUI ; Bingmei LI ; Meichen TONG ; Na ZHOU ; Qian ZHANG ; Zhang CAO
Chinese Journal of Clinical and Experimental Pathology 2025;41(7):853-861,867
Purpose To investigate the expression of SNRPA in gastric cancer and its effect on the proliferation,migration and invasion of gastric cancer cells.Methods The expression of SNRPA in gastric cancer tissues was ana-lyzed using The Cancer Genome Atlas(TCGA)database.The level of SNRPA was detected by immunohistochemistry(EnVision method),and its relationship with clinicopathological parameters was analyzed.Western blot was used to detect the expression of SNRPA in 15 cases of fresh gastric cancer and paracancerous tissues.The expression of SNRPA in MGC-803 and GES-1 cells was detected by immunofluorescence staining.The effects of SNRPA expression on the proliferation,migration and invasion of gastric cancer cell lines were determined by RNA interference technology and cell function assays,and the expression levels of Cyclin D1 protein and EMT-related proteins(E-cadherin,N-cadher-in)were detected by Western blot.Results The expression level of SNRPA in gastric cancer tissues was significantly higher than that in normal gastric mucosal tissues(P<0.05),with an area under the curve(AUC)of 0.902 for diag-nostic accuracy.The Kaplan-Meier survival curves showed that the survival time of the group with high expression of SNRPA was shorter.SNRPA expression correlated with tumor size,Ki67,infiltration depth,and p53 status(P<0.05).Compared with the corresponding control group,SNRPA silencing inhibited the proliferation,migration and in-vasion ability of gastric cancer cells,accompanied by decreased Cyclin D1 and N-cadherin expression and increased E-cadherin expression(P<0.05).Conclusion SNRPA expression is upregulated in gastric cancer tissues and cell lines,promoting the proliferation,migration,and invasion of gastric cancer cells,and may be a potential molecular marker for gastric cancer.
2.Interaction of autophagy and ubiquitin proteasome system after macrophage infec-ted Brucella
Bingmei DONG ; Mengmeng LIANG ; Wenya XU ; Jun WANG ; Lili SONG ; Honglin REN
Chinese Journal of Veterinary Science 2025;45(3):507-513
In order to explore the relationship between ubiquitin proteasome system(UPS)and au-tophagy after macrophage was infected with Brucella.On the one hand,the levels of LC3 Ⅱ、P62 and 20S proteasomes in cell supernatant and peritoneal fluid were determined respectively after RAW264.7 cells were infected and BALB/c mice were intraperitoneal inoculated with Brucella suis(B.suis).The results displayed that UPS was activated firstly,followed by autophagy after B.suis infection.On the other hand,we prepared the UPS-inhibited-cells and ALP-inhibited-cells by lacta-cystin and 3-methy ladenine(3-MA),and then the cells were infected by B.suis and the levels of LC3 Ⅱ、P62 与 20S proteasomes in cell supernatant were determined.The results showed that the ALP function was significantly improved when the effect of M
3.Expression of SNRPA and related molecular mechanisms in gastric cancer
Sijia WANG ; Min CUI ; Bingmei LI ; Meichen TONG ; Na ZHOU ; Qian ZHANG ; Zhang CAO
Chinese Journal of Clinical and Experimental Pathology 2025;41(7):853-861,867
Purpose To investigate the expression of SNRPA in gastric cancer and its effect on the proliferation,migration and invasion of gastric cancer cells.Methods The expression of SNRPA in gastric cancer tissues was ana-lyzed using The Cancer Genome Atlas(TCGA)database.The level of SNRPA was detected by immunohistochemistry(EnVision method),and its relationship with clinicopathological parameters was analyzed.Western blot was used to detect the expression of SNRPA in 15 cases of fresh gastric cancer and paracancerous tissues.The expression of SNRPA in MGC-803 and GES-1 cells was detected by immunofluorescence staining.The effects of SNRPA expression on the proliferation,migration and invasion of gastric cancer cell lines were determined by RNA interference technology and cell function assays,and the expression levels of Cyclin D1 protein and EMT-related proteins(E-cadherin,N-cadher-in)were detected by Western blot.Results The expression level of SNRPA in gastric cancer tissues was significantly higher than that in normal gastric mucosal tissues(P<0.05),with an area under the curve(AUC)of 0.902 for diag-nostic accuracy.The Kaplan-Meier survival curves showed that the survival time of the group with high expression of SNRPA was shorter.SNRPA expression correlated with tumor size,Ki67,infiltration depth,and p53 status(P<0.05).Compared with the corresponding control group,SNRPA silencing inhibited the proliferation,migration and in-vasion ability of gastric cancer cells,accompanied by decreased Cyclin D1 and N-cadherin expression and increased E-cadherin expression(P<0.05).Conclusion SNRPA expression is upregulated in gastric cancer tissues and cell lines,promoting the proliferation,migration,and invasion of gastric cancer cells,and may be a potential molecular marker for gastric cancer.
4.Interaction of autophagy and ubiquitin proteasome system after macrophage infec-ted Brucella
Bingmei DONG ; Mengmeng LIANG ; Wenya XU ; Jun WANG ; Lili SONG ; Honglin REN
Chinese Journal of Veterinary Science 2025;45(3):507-513
In order to explore the relationship between ubiquitin proteasome system(UPS)and au-tophagy after macrophage was infected with Brucella.On the one hand,the levels of LC3 Ⅱ、P62 and 20S proteasomes in cell supernatant and peritoneal fluid were determined respectively after RAW264.7 cells were infected and BALB/c mice were intraperitoneal inoculated with Brucella suis(B.suis).The results displayed that UPS was activated firstly,followed by autophagy after B.suis infection.On the other hand,we prepared the UPS-inhibited-cells and ALP-inhibited-cells by lacta-cystin and 3-methy ladenine(3-MA),and then the cells were infected by B.suis and the levels of LC3 Ⅱ、P62 与 20S proteasomes in cell supernatant were determined.The results showed that the ALP function was significantly improved when the effect of M
5.Exploration on Characteristics of Acupoint Efficacy Based on the Self-developed ACU&MOX-DATA Platform
Sihui LI ; Shuqing LIU ; Qiang TANG ; Ruibin ZHANG ; Wei CHEN ; Hao HONG ; Bingmei ZHU ; Xun LAN ; Yong WANG ; Shuguang YU ; Qiaofeng WU
Chinese Journal of Information on Traditional Chinese Medicine 2024;31(2):64-69
Objective To explore the effects of different acupoints,different target organs,and different interventions on acupoint efficacy based on ACU&MOX-DATA platform;To illustrate and visualize whether the above factors have the characteristics of"specific effect"or"common effect"of acupoint efficacy.Methods The multi-source heterogeneous data were integrated from the original omics data and public omics data.After standardization,differential gene analysis,disease pathology network analysis,and enrichment analysis were performed using Batch Search and Stimulation Mode modules in ACU&MOX-DATA platform under the conditions of different acupoints,different target organs,and different interventions.Results Under the same disease state and the same intervention,there were differences in effects among different acupoints;under the same disease state,the same acupoint and intervention,the responses produced by different target organs were not completely consistent;under the same disease state and acupoint,there were differences in effects among different intervention measures.Conclusion Based on the analysis of ACU&MOX-DATA platform,it is preliminary clear that acupoints,target organs,and interventions are the key factors affecting acupoint efficacy.Meanwhile,the above results have indicated that there are specific or common regulatory characteristics of acupoint efficacy.Applying ACU&MOX-DATA platform to analyze and visualize the critical scientific problems in the field of acupuncture and moxibustion can provide references for deepening acupoint cognition,guiding clinical acupoint selection,and improving clinical efficacy.
6.Construction of enteral nutrition nursing scheme for patients with abdominal hypertension in ICU based on intra-abdominal pressure classification
Meimei WANG ; Anhua QIAO ; Yin′e WANG ; Bingmei ZHOU ; Wenfang LI ; Fei PENG
Chinese Journal of Practical Nursing 2024;40(15):1133-1141
Objective:To construct the enteral nutrition nursing scheme of ICU patients with abdominal hypertension based on internal abdominal pressure classification, and provide reference for effectively preventing enteral nutrition intolerance of ICU patients with abdominal hypertension.Methods:According to the "6S" evidence pyramid model, searched from top to bottom for relevant literature on enteral nutrition support for ICU patients with abdominal hypertension in databases such as BMJ Best Practice, Cochrane Library, Guidelines International Network, Medlive, UpToDate, PubMed, Ovid, Web of Science, Embase, China National Knowledge Infrastructure, VIP, Wanfang Medicine, Chinese Biomedical Literature. Developed an enteral nutrition care plan for ICU patients with abdominal hypertension based on intra-abdominal pressure grading, with a search date from database establishment to January 25, 2023. The Delphi expert letter consultation method was used to conduct two rounds of letter consultation with 20 experts to solicit expert opinions and determine the intervention plan.Results:The age of 20 experts was (43.75 ± 5.28) years old, with a working experience of (22.00 ± 6.98) years. The effective recovery rates of the two rounds of Delphi expert correspondence questionnaires were 100%(20/20), the expert judgment basis coefficients were 0.945 and 0.970, the familiarity coefficients were 0.865 and 0.895, and the authority coefficients were 0.905 and 0.932, respectively. Kendall coordination coefficient of importance of the first, second and third level items in the two rounds of expert correspondence were 0.100, 0.093, 0.098 and 0.200, 0.165, 0.119. The Kendall coordination coefficients of operability for the first, second and third level items were 0.117, 0.130, 0.115 and 0.200, 0.184, 0.154, respectively. Finally, an enteral nutrition nursing scheme for patients with abdominal hypertension in ICU was formed, which included 5 primary items, 30 secondary items and 51 tertiary items.Conclusions:The Delphi method in this study has a high degree of authority and enthusiasm of experts, and a good degree of coordination of expert opinions. The established enteral nutrition nursing scheme for ICU patients with abdominal hypertension based on intra-abdominal pressure classification is reliable and scientific, and can provide reference for clinical nursing practice of enteral nutrition for ICU patients with abdominal hypertension.
7.Dahuang Fuzi decoction enhances killing effect of NK cells on Lewis lung carcino-ma cells
Xiaoyan WANG ; Mingxuan WANG ; Jiaxuan FENG ; Jinping BAI ; Bingmei WANG ; Chang LIU
Chinese Journal of Veterinary Science 2024;44(7):1483-1488
The aim of this study is to investigate the effect of Dahuang Fuzi decoction(DHFZT)on the killing effect of natural killer(NK)cells and the growth of lung cancer xenografts in mice.Lewis lung cancer xenograft model was constructed,and the mice were randomly divided to the normal saline group,low and high concentrations of DHFZT groups.The growth of lung cancer xenografts in mice in the control group,low and high concentration of DHFZT treatment groups was detected.The levels of IFN-y,IL-2 and IL-10 were detected by ELISA.The killing effect of NK cells was detected by calcein release assay.The release of CD107α was detected by flow cytometry.The expression of activated receptors and the tumor cell surface ligands were detected in the con-trol group and DHFZT treatment groups.The results showed that the xenografts of Lewis mice in the DHFZT treatment groups were grown slower than that in the control group in a dose depend-ent manner(P<0.05).Compared with the control groups,the levels of IL-2 and IFN-y in tumor tissues were increased in DHFZT treatment groups(P<0.05),but no significant changes in IL-10.Calcein release assay showed that the killing efficiency of NK cells in the DHFZT treatment groups was increased(P<0.05).The secretion level of IFN-y in the culture supernatant was increased by DHFZT treatment(P<0.05).DHFZT treatment increased the expression level of CD107α of NK cells.The expression of MIC A/B on the surface of A549 and H1299 cells was up-regulated by DHFZT treatment,but not the expression of inhibitory ligand HLA-ABC.The results showed that DHFZT enhanced the killing effect of NK cells on mouse lung cancer cells by up-reg-ulating the expression of MIC A/B,increasing the secretion of IFN-y and CD107α.Hence,these re-sults indicated that DHFZT suppresses the lung cancer growth potential through regulating the killing effect of NK cells.
8.Effect of long-chain fat emulsion on perioperative nutritional status of patients with low rectal cancer
Shang LI ; Chongren REN ; Haoliang ZHAO ; Bingmei CHANG ; Chuanli YANG ; Jinxi WANG
Cancer Research and Clinic 2021;33(8):618-622
Objective:To explore the effect of long-chain fat emulsion in parenteral nutrition therapy on the perioperative nutritional status of patients with low rectal cancer.Methods:A total of 204 patients who underwent rectal cancer surgery in the Third Hospital of Shanxi Medical University from January 2017 to June 2020 were retrospectively analyzed. The patients were divided into two groups according to the specific nutritional treatment methods, 100 cases in the study group used long-chain fat emulsion for parenteral nutrition support, and 104 cases in the control group used medium- and long-chain fat emulsion injection. After admission, the nutritional status of patients were evaluated according to the results of Scored Patient-Generated Subjective Global Assessment (PG-SGA) and related laboratory tests. At 7th day before the operation, the patients were treated with nutrition and electrolyte support. Parenteral nutrition and enteral nutrition combined treatment and early enteral nutrition were given after the operation. The albumin, prealbumin, retinol-binding protein, total cholesterol and body mass index (BMI) at 7th day before the operation, 1st day after the operation and 7th day after the operation and the patient's first exhaust time after surgery, occurrence of postoperative complications, postoperative fever and total hospital stay were recorded and compared between the two groups.Results:Postoperative first exhaust time [(42±11) h vs. (54±10) h], fever time [(48±8) h vs. (57±7) h], total hospital stay [(16.0±0.7) d vs. (18.0±0.9) d)], resting energy expenditure at the 7th day after surgery [(5 326±589) kJ/d vs. (5 840±599) kJ/d] and total cholesterol at the 7th day after surgery [(4.8±0.3) mmol/L vs. (5.0± 0.4) mmol/L] in the study group were lower than those in the control group, and albumin [(33±3) g/L vs. (28± 3) g/L], prealbumin [(0.189±0.041) g/L vs. (0.164±0.037) g/L] and retinol-binding protein [(0.039±0.016) g/L vs. (0.032±0.013) g/L] at the 7th day after surgery in the study group were higher than those in the control group, and the differences between the two groups were statistically significant (all P < 0.05). There was no statistical difference in other detection indexes between the two groups (all P > 0.05). Conclusion:The use of long-chain fat emulsion in low rectal cancer patients with malnutrition during the perioperative period may be more conducive to the recovery of the body.
9.Significance of changes of neutrophil-to-lymphocyte ratio and platelet-to-lymphocyte ratio in neoadjuvant therapy for rectal cancer
Lili LIU ; Bingmei CHANG ; Haiyi LIU ; Yixun ZHANG ; Maoxi LIU ; Lichun WANG ; Haibo WANG
Cancer Research and Clinic 2020;32(3):145-148
Objective:To investigate the significance of changes of neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocyte ratio (PLR) in neoadjuvant therapy for rectal cancer.Methods:The data of 86 patients with rectal cancer who received neoadjuvant therapy from November 2013 to January 2015 in Shanxi Provincial Cancer Hospital were retrospectively analyzed, and the correlations of NLR and PLR changes with the patients' clinicopathological characteristics and therapeutic effects were also analyzed.Results:There were 43 cases of increased NLR and 43 cases of increased PLR after treatment. NLR and PLR changes before and after neoadjuvant therapy in patients with rectal cancer were not associated with age, gender, TNM stage, lymph node metastasis, number of cancer nodules, and tumor diameter (all P > 0.05). The increasing proportion of NLR and PLR after treatment in patients with the distance from the tumor to anus < 6 cm was higher than that in those with the distance≥6 cm [60.00% (30/50) vs. 36. 11% (13/36), χ2 = 4.778, P = 0.029; 64.00% (32/50) vs. 30.56% (11/36), χ2 = 9.364, P = 0.002]. The increasing proportion of NLR and PLR after treatment in patients with the body mass index (BMI) ≥28 kg/m 2 was higher than that in those with BMI < 28 kg/m 2 [81.82% (9/11) vs. 45.33% (34/75), χ2 = 5.108, P = 0.024; 90.91% (10/11) vs. 44.00% (33/75), χ2 = 8.444, P = 0.004]. The remission rate of patients in NLR reduction group after treatment was higher than that in NLR increase group [72.09% (31/43) vs. 51.16% (31/43), χ2 = 3.983, P = 0.046]. PLR changes were not associated with the therapeutic effects of neoadjuvant therapy before and after treatment ( P > 0.05). Conclusion:NLR changes are associated with therapeutic efficacy before and after neoadjuvant therapy for patients with rectal cancer.
10.The Mediating Effects of Learning Motivation on the Association between Perceived Stress and Positive-Deactivating Academic Emotions in Nursing Students Undergoing Skills Training
Wei WANG ; Huiying XU ; Bingmei WANG ; Enzhi ZHU
Journal of Korean Academy of Nursing 2019;49(4):495-504
PURPOSE:
Nursing students experience a high degree of perceived stress during skills training. The resulting academic sentiment is worthy of research. This study examined the learning motivation as a mediator in the association between perceived stress and positive deactivating academic emotions in nursing students undergoing skills training.
METHODS:
A survey was conducted on 386 third-year undergraduate nursing students at a university in Changchun, China, in 2017. The survey included the items on perceived stress, learning motivation during nursing skill training, and general academic emotion. There were 381 valid responses (response rate=98.7%). Based on the results of partial correlation and stepwise multiple regression equations, the study examined the mediation model between perceived stress, learning motivation and positive-deactivating academic emotions using process 2.16 (a plug-in specifically used to test mediation or moderation effect in SPSS).
RESULTS:
There was a significant negative correlation between students' perceived stress and learning motivation during nursing skills training and positive-deactivating academic emotions. Nervousness, loss of control, and interest in developing reputation had significant predictive effects on positive-deactivating academic emotions. The mediating model was well supported.
CONCLUSION
Learning motivation during nursing skills training lessened the damage of perceived stress on positive-deactivating academic emotions. Improving students' motivation to learn could reduce their perceived stress and build more positive emotions. Positive emotions during learning played an important role in helping nursing students improve skills and enhance their nursing competence.

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