1.Mechanism of leukemia stem cells immune escape by Traditional Chinese Medicine intervention
Meiling ZHANG ; Yaru CUI ; Shupeng CHEN ; Junyun LUO ; Yingjian ZENG
Chinese Journal of Comparative Medicine 2024;34(2):137-143
Leukemia is a critical disease with a high incidence and extremely high fatality rate.Immune escape by leukemia stem cells(LSC)is the main factor for recurrence and progression after remission.Clinical diagnosis and treatment by Traditional Chinese Medicine(TCM)have distinct advantages of syndrome differentiation and treatment.Based on the purpose of diagnosis and treatment,leukemia treatment by TCM emphasizes the harmony of yin and yang to restore human functions,which is conducive to improve autoimmunity and conforms to the mechanism of intervention for tumor cell immune escape.This article discusses the mechanism and research progress of TCM interventions in LSC immune escape based on literature and TCM theory.
2.The construction of the rating scales on the knowledge, attitude, and practice of geriatrics and analysis of its reliability and validity
Lin KANG ; Yaru LIU ; Haiyu PANG ; Xiaohong LIU ; Ping ZENG ; Minglei ZHU ; Xiaohui GAO
Chinese Journal of Geriatrics 2018;37(11):1272-1275
Objective To construct a rating scale on the knowledge,attitude,and practice of geriatrics for 8-year clinical medical students and undergraduate nursing students,and to test the reliability and validity of the scale.Methods The Knowledge,Attitude,Practice(KAP)theory was used as a guided framework,relative literatures were reviewed,and topics for question answering were discussed by experts group.Then,a questionnaire was initially constructed.Five methods,including discrete trend method,Cronbach coefficient,t-test,correlation analysis,and factor analysis,were used to screen the attitude and practice items.The knowledge items were evaluated by experts.Items with over three exclusion criteria were deleted when combining the literal questions.The construct validity of the integrated scale was assessed by factor analysis.A pilot research was conducted by 100 eight-year medical students and nursing undergraduates selecting question entries,and the reliability and validity of the scale were examined.Results The scale consisted of three dimensions.A 43-item initiate questionnaire on the scale included 13 items for knowledge,11 for attitude,and 19 for practice.Two knowledge items were deleted according to expert evaluation.Seven items with more than three exclusion criteria were deleted after statistical analyses.Eventually,34 items were included in the questionnaire.The Cronbach α coefficient of the questionnaire was 0.702.And three common factors were extracted according to exploratory factor analysis.Conclusions The reliability and validity of Geriatrics Knowledge,Attitude and Practice scale for eight year medical students and nursing undergraduates are acceptable,but the knowledge items should be recomposed.
3.Spinocerebellar ataxia type 11: a case report
Min ZENG ; Yaru ZHANG ; Keliang CHEN ; Mei CUI ; Jintai YU
Chinese Journal of Neurology 2022;55(2):156-159
Spinocerebellar ataxia (SCA) is a group of highly heterogeneous autosomal dominant genetic disease, including many subtypes. SCA11 is a rare subtype of SCA, and is caused by mutant TTBK2 gene. A case of SCA11 was reported in this article. Whole exome sequencing showed that there was a c.1284dupA frameshift mutation in TTBK2 gene. Literature review found that only 6 pedigrees of SCA11 have been reported, but the mutation site of this case is a novel identified mutation that has not been reported in the Human Gene Mutation Database.
4.Application of 4R problem analysis method combined with reverse teaching in nursing teaching in the pediatric operating room
Xiaoyan LIU ; Sisi TENG ; Si CHEN ; Manli QIN ; Yaru ZENG
Chinese Journal of Medical Education Research 2024;23(3):411-414
Objective:To explore the application of the 4R problem analysis method combined with reverse teaching in nursing teaching in the pediatric operating room.Methods:In this study, 480 nursing students who were assigned to the operating room of Hunan Children's Hospital for internship from August 2020 to August 2022 were selected as research subjects. They were divided into control group and observation group in order of admission, with 240 students in each group. The control group received traditional teaching, while the observation group received the 4R problem analysis method combined with reverse teaching. At the end of the internship, the two groups were compared for comprehensive ability assessment scores, recognition of nursing teaching, and degree of satisfaction with the teaching. The t-test and χ2 test were performed using SPSS 22.0. Results:The scores of theoretical knowledge, basic nursing skills, specialized nursing skills in the operating room, and comprehensive nursing skill assessment of the observation group were significantly higher than those of the control group ( P<0.05). The recognition of nursing teaching among the nursing interns in the observation group was significantly higher than that in the control group ( P<0.001). There was a significant difference in the degree of satisfaction with the teaching between the two groups of nursing interns ( χ2=118.35, P<0.001). Conclusions:The 4R problem analysis method combined with reverse teaching can effectively improve the nursing teaching quality and the degree of satisfaction with the teaching among nursing interns in the pediatric operating room, enabling them to better grasp theoretical and practical skills.
5.Biochemical and pathological analysis of mice with type 2 diabetes mellitus induced by high-fat diet and low-dose streptozotocin injections.
Weisen ZENG ; Yuanjian HUANG ; Congwen SHAO ; Baohuan LIANG ; Cheng WEI ; Wanfu XU ; Yaru SU
Journal of Southern Medical University 2014;34(8):1115-1120
OBJECTIVETo analyze the biochemical and pathological changes in mice with type 2 diabetes mellitus (T2DM) induced by high-fat diet combined with low-dose streptozotocin (STZ) injections.
METHODSC57BL/6J mice were divided randomly into normal control group (NC group), high-fat diet group (HC group) and high-fat diet plus STZ group (HC+STZ group). The mice were fed on normal chow or a high-fat diet for 1 month before two introperitoneal injections of STZ (40 mg/kg) or citrate buffer with an interval of 24 h as appropriate. Fasting blood glucose (FBG) was detected every week for 4 weeks, and oral glucose tolerance test (OGTT) was performed one month after the injections, after which the biochemical profiles, islet and liver were evaluated by immunohistochemical and pathological analysis.
RESULTSIn HC+STZ group, FBG was above the cutoff value (13.89 mmol/L) in 75% of the mice at 1 week after STZ injections and in all the mice at two weeks except for the death of 1 mouse, with a success rate of modeling of 91.3%. FBG in HC group, though slightly higher than that in NC group, remained normal (6.8 mmol/L). The body weight in HC+STZ and HC groups was significantly higher than that in NC group after feeding but without obvious increases after the injections (P<0.01). Blood glucose in HC+STZ group at 0.5 to 2 h after OGTT and the area under curve (AUC) were higher than those in NC and HC groups (P<0.01); the AUC in HC group was a also higher than that in NC group (P<0.05). Plasma creatinine was significantly higher in HC+STZ group than in NC (P<0.01) and HC (P<0.05) groups. Insulin secretion by the islets decreased obviously in HC+STZ and HC group. The mice in HC+STZ group showed atrophy, fibrosis, and vacuolization in the islets with mild fatty liver but no visible renal pathologies.
CONCLUSIONHigh-fat diet and low-dose STZ injections can induce T2DM in mice with very similar biochemical and pathological changes to human T2DM and with such complications as fatty liver.
Animals ; Blood Glucose ; Body Weight ; Diabetes Mellitus, Type 2 ; physiopathology ; Diet, High-Fat ; Fatty Liver ; physiopathology ; Glucose Tolerance Test ; Insulin ; Insulin Resistance ; Islets of Langerhans ; pathology ; Kidney ; pathology ; Mice ; Mice, Inbred C57BL ; Streptozocin
6.Insulin resistance and abnormal glucose metabolism in patients with primary aldosteronism
Yaru ZHOU ; Zheng-Pei ZENG ; Jing ZHANG ; An-Li TONG ; Lin LU ; Ai-Ling SONG ; Wei-Bo XIA ; Yong FU ; Yan JIANG ; Shi CHEN ; Wei LIANG ; Jiangfeng MAO ; Huabing ZHANG ; Wei LI
Chinese Journal of Endocrinology and Metabolism 1986;0(03):-
Objective To analysis the relationship of primary aldosteronism to insulin resistance and abnormal glucose metabolism in patients with primary aldosteronism.Methods One hundred and three patients were diagnosed as aldosterone-producing adenoma(APA),75 cases as idiopathic hyperaldosterenism(IHA),56 patients as metabolic syndrome(MS)in Peking Union Medical College Hospital from September 2003 to December 2005.All patients were accepted 3 h oral glucose tolerance test and calculated HOMA-insulin resistance index (HOMA-IR)by Homeostasis Model.Results The Insulin area under curve[INS_(AUC) 270.8(192.7,370.4)mU?L~(-1)?h~(-1)]、HOMA-IR[3.2(2.4,4.7)]and prevalence of insulin resistance(64.3%)were significantly higher in patients with MS as compared with APA[113.2(81.5,193.6)mU?L~(-1)?h~(-1),1.4(1.0,2.2),16.5%]and IHA[186.9(116.6,243.3)mU?L~(-1)?h~(-1),2.0(1.4,3.1),32.0%]groups (all P<0.01);The INS_(AUC), HOMA-IR and prevalence of insulin resistance were significantly higher in patients with IHA than those with APA (P<0.05 or P<0.01).There was no difference between the prevalence of impaired glucose regulation(41.7%, 34.7%),diabetes mellitus(15.5%,16.0%)in patients with APA,IHA and those with MS(41.1%, 26.8%).Conclusion Insulin resistance is present in primary aldosteronism patients,and the prevalence of insulin resistance is higher in patients with IHA.
7.Ample dietary fat reduced the risk of primary vesical calculi by inducing macrophages to engulf budding crystals in mice.
Huiling CHEN ; Kaiqiang HU ; Yaru LIANG ; Yuqi GAO ; Chenye ZENG ; Kang XU ; Xiaojin SHI ; Liyuan LI ; Yuemiao YIN ; Yi QIAO ; Ying QIU ; Qingfei LIU ; Zhao WANG
Acta Pharmaceutica Sinica B 2022;12(2):747-758
Although primary vesical calculi is an ancient disease, the mechanism of calculi formation remains unclear. In this study, we established a novel primary vesical calculi model with d,l-choline tartrate in mice. Compared with commonly used melamine and ethylene glycol models, our model was the only approach that induced vesical calculi without causing kidney injury. Previous studies suggest that proteins in the daily diet are the main contributors to the prevention of vesical calculi, yet the effect of fat is overlooked. To assay the relationship of dietary fat with the formation of primary vesical calculi, d,l-choline tartrate-treated mice were fed a high-fat, low-fat, or normal-fat diet. Genetic changes in the mouse bladder were detected with transcriptome analysis. A high-fat diet remarkably reduced the morbidity of primary vesical calculi. Higher fatty acid levels in serum and urine were observed in the high-fat diet group, and more intact epithelia in bladder were observed in the same group compared with the normal- and low-fat diet groups, suggesting the protective effect of fatty acids on bladder epithelia to maintain its normal histological structure. Transcriptome analysis revealed that the macrophage differentiation-related gene C-X-C motif chemokine ligand 14 (Cxcl14) was upregulated in the bladders of high-fat diet-fed mice compared with those of normal- or low-fat diet-fed mice, which was consistent with histological observations. The expression of CXCL14 significantly increased in the bladder in the high-fat diet group. CXCL14 enhanced the recruitment of macrophages to the crystal nucleus and induced the transformation of M2 macrophages, which led to phagocytosis of budding crystals and prevented accumulation of calculi. In human bladder epithelia (HCV-29) cells, high fatty acid supplementation significantly increased the expression of CXCL14. Dietary fat is essential for the maintenance of physiological functions of the bladder and for the prevention of primary vesical calculi, which provides new ideas for the reduction of morbidity of primary vesical calculi.