Objective:To explore the application effectiveness of Artificial Intelligence Generated Content(AIGC)in immuno-logy education and optimize teaching models to enhance students'clinical thinking and self-directed learning abilities.Methods:A questionnaire survey was conducted to analyze the current application status of AIGC among 105 university teachers.Taking"TypeⅠHypersensitivity"as an example,integrating AI tools to generate dynamic case scenarios and multimodal resources.Teaching effective-ness was evaluated through classroom practices and student questionnaires.Results:88.32%of teachers recognized AIGC's role in im-proving preparation efficiency,and 61.54%of students reported significantly improved learning outcomes.However,71.43%of teach-ers expressed concerns about increased student dependency,and 55.84%of teachers emphasized challenges in content quality control.Conclusion:AIGC effectively enhances teaching interactivity and personalized learning.Future efforts should focus on optimizing con-tent authority,establishing ethical guidelines,and promoting the development of human-AI collaborative educational models.

Objective:To explore the application effectiveness of Artificial Intelligence Generated Content(AIGC)in immuno-logy education and optimize teaching models to enhance students'clinical thinking and self-directed learning abilities.Methods:A questionnaire survey was conducted to analyze the current application status of AIGC among 105 university teachers.Taking"TypeⅠHypersensitivity"as an example,integrating AI tools to generate dynamic case scenarios and multimodal resources.Teaching effective-ness was evaluated through classroom practices and student questionnaires.Results:88.32%of teachers recognized AIGC's role in im-proving preparation efficiency,and 61.54%of students reported significantly improved learning outcomes.However,71.43%of teach-ers expressed concerns about increased student dependency,and 55.84%of teachers emphasized challenges in content quality control.Conclusion:AIGC effectively enhances teaching interactivity and personalized learning.Future efforts should focus on optimizing con-tent authority,establishing ethical guidelines,and promoting the development of human-AI collaborative educational models.

To introduce a strategy for a case of severe pneumonia complicated with lung abscess caused by Fusobacterium necrotum.The pathogen was not identified,but the patient was still coughing up feverish bloody sputum after being treated with meropenem,linezolid and ornidazole.The results of detection of pathogen metagenomes in bronchoalveolar lavage fluid by posterior bronchoscopy suggested that the pathogen was Fusobacterium necrophorum,according to the characteristics of bacteria,the dynamic changes of clinical symptoms,liver and kidney function,body temperature and blood picture infection index,combined with the results of bacterial culture/drug sensitivity test,bronchoalveolar lavage fluid NGS and the pharmacokinetic/pharmacodynamic characteristics of antimicrobial agents,to propose an anti-infective regimen that is strategically adjusted to imipenem cilastatin(1.0 g,ivd,q8h)plus ornidazole(0.5 g,ivd,q12h)for the implementation of pharmaceutical care after adoption by physicians.After 21 days,the patient's severe infection and lung abscess was controlled and patient was discharged.In this case,clinical pharmacists study the bacterial characteristics of Fusobacterium necrotum,review a large number of domestic and foreign literature to track the frontier knowledge of antimicrobial agents,and use their own expertise to provide effective pharmaceutical support for the clinical team,to assist clinical team in the diagnosis and treatment of rare infections,to achieve professional value.

Systemic lupus erythematosus (SLE) is an autoimmune disease affecting multiple systems throughout the body, which may cause serious visual impairment when the fundus is involved. In recent years, " looking at health through the eyes" is a hot research topic. Studies on SLE have shown that retinopathy is highly correlated with disease activity. Even there is no clinical manifestation, changes in retinal microvessel density and structure also show a certain correlation with the course of SLE and other organs′ involvement. Therefore, the evaluation of fundus features in SLE patients is not only helpful for early intervention and improvement of patients′ visual function prognosis, but also of great significance for the diagnosis of SLE and prediction of other systems′ impairment.

Objective:To investigate the risk factors of acute biliopancreatic complica-tions in patients of pregnancy combined with gallbladder stone and construction of prediction model.Methods:The retrospective case-control study was constructed. The clinical data of 98 patients of pregnancy combined with gallbladder stone who were admitted to the First Hospital of Lanzhou University from September 2011 to October 2022 and 53 patients of pregnancy combined with gallbladder stone who were admitted to Gansu Provincial Hospital May 2014 to October 2021 were collected. The age of 151 patients was 29(25,32)years. Observation indicators: (1) situations of patients of pregnancy combined with gallbladder stone; (2) risk factors of acute biliopancreatic com-plications in patients of pregnancy combined with gallbladder stone; (3) construction of prediction model for acute biliopancreatic complications in patients of pregnancy combined with gallbladder stone. Measurement data with normal distribution were represented as Mean± SD, and comparison between groups was conducted using the independent t test. Measurement data with skewed distribution were represented as M( Q1, Q3), and comparison between groups was conducted using the Mann-Whitney U test. Count data were described as absolute numbers, and comparison between groups was conducted using the chi-square test. Comparison of ordinal data was conducted using the rank sum test. Univariate and multi-variate analyses were conducted using the Logistic regression model. Nomogram prediction model was conducted, and the receiver operating characteristic (ROC) curve was used to evaluate discri-mination of the nomogram predic-tion model. The calibration curve and clinical decision curve were used to evaluate calibration and net clinical benefit of the nomogram prediction model. Internal validation of the prediction model was performed by applying 10-fold cross-validation. Results:(1) Situations of patients of pregnancy combined with gallbladder stone. The total cholesterol, triglyceride, high density lipoprotein cholesterol, low density lipoprotein cholesterol, prepregnancy body mass index (<18.5 kg/m 2, 18.5?24.0 kg/m 2, >24.0 kg/m 2), gesta-tional period (early, mid, late), primipara (positive, negative), stone type (solitary, non solitary), diameter of stone (≤10 mm, >10 mm), gallbladder wall thickness (≥4 mm, <4 mm) were (4.9±1.4)mmol/L, 1.88(1.22,2.93)mmol/L, 1.48(1.22,1.83)mmol/L, (2.8±0.9)mmol/L, 13, 75, 58, 37, 45, 69, 86, 65, 37, 114, 89, 62, 38, 113 in the 151 patients of pregnancy combined with gallbladder stone. Of the 151 patients, the age, prepregnancy body mass index (<18.5 kg/m 2, 18.5?24.0 kg/m 2, >24.0 kg/m 2), primipara (positive, negative), stone type (solitary, non solitary), diameter of stone (≤10 mm, >10 mm), gallbladder wall thickness (≥4 mm, <4 mm) were 31(28,37)years, 3, 30, 36, 29, 40, 32, 37, 26, 43, 4, 65 in 69 cases without symptom, versus 27(24,31)years, 10, 45, 22, 57, 25, 5, 77, 63, 19, 34, 48 in 82 cases combined with acute biliopancreatic complications, showing significant differences in the above indicators between them ( Z=?3.636, ?2.385, χ2=11.544, 32.862, 23.729, 25.310, P<0.05). Five of the 82 patients of pregnancy combined with gallbladder stone missed data of prepregnancy body mass index. Of the 82 patients, there were 42 patients of simple acute cholecystitis, 40 patients of common bile duct stone and/or acute biliary pancreatitis including 18 cases of common bile duct stone, 13 cases of acute biliary pancreatitis and 9 cases of common bile duct stone combined with acute biliary pancreatitis. (2) Risk factors of acute biliopancreatic complications in patients of pregnancy combined with gallbladder stone. Results of multivariate analysis showed that primipara, non solitary stone, diameter of stone ≤10 mm, gallbladder wall thickness ≥4 mm were independent risk factors of acute biliopancreatic complications in patients of pregnancy combined with gallbladder stone ( odds ratio=3.102, 6.305, 3.674, 6.686, 95% confidence interval as 1.280?7.519, 1.886?21.080, 1.457?9.265, 1.984?22.528, P<0.05). Results of multivariate analysis in further analysis showed that primipara, non solitary stone, gallbladder wall thickness ≥4 mm were independent risk factors of simple acute cholecystitis in patients of pregnancy combined with gallbladder stone ( odds ratio=3.671, 8.905, 7.137, 95% confidence interval as 1.386?9.723, 2.332?34.006, 1.902?26.773, P<0.05), and age, non solitary stone, diameter of stone ≤10 mm, gallbladder wall thickness ≥4 mm were independent risk factors of common bile duct stone and/or acute biliary pancreatitis in patients of pregnancy combined with gallbladder stone ( odds ratio=0.883, 5.361, 5.472, 8.895, 95% confidence interval as 0.789?0.988, 1.062?27.071, 1.590?18.827, 2.064?38.325, P<0.05). (3) Construction of prediction model for acute biliopancreatic complications in patients of pregnancy combined with gallbladder stone. The nomogram prediction model for acute biliopancreatic complications in patients of pregnancy combined with gallbladder stone was constructed based on the clinical factors of age, primipara, stone type, diameter of stone and gallbladder wall thickness. The area under the curve (AUC) of ROC curve of prediction model was 0.869 (95% confidence interval as 0.813?0.923), indicating that the prediction model with good predictive ability. Results of Hosmer-Lemeshow test showed a good fit ( χ2=5.680, P>0.05), indicating that the prediction model with good calibration. Results of decision curve analysis showed the prediction model with high net clinical benefit. Results of internal validation of the prediction model based on 10-fold cross-validation showed the AUC of ROC curve for the cross-validation sample was 0.833, indicating that the prediction model with good stability. Conclusions:Primigravida, non solitary stone, diameter of stone ≤10 mm, gallbladder wall thickness ≥4 mm are independent risk factors of acute biliopancreatic complications in patients of pregnancy combined with gallbladder stone. The prediction model for acute biliopancreatic complications has good predictive ability.

Objective:To investigate the current situation of spiritual care ability, occupational sadness, perceived hospital ethics of hospice nurses, and to analyze the impact of nurses' occupational sadness and perceived hospital ethics on nurses′ spiritual care ability.Methods:A total of 230 hospice nurses in Qingdao Eighth People′s Hospital, Qingdao Municipal Hospital and Qingdao Central Hospital (Qingdao Cancer Hospital) from March to June, 2021 were investigated by general information questionnaire, Spiritual Care Ability Scale, Sadness Experience Scale and Hospital Ethical Atmosphere Scale.Results:The scores of spiritual care ability, professional sadness and perceived hospital ethics of 230 hospice nurses were (70.59 ±13.35), (37.31 ±6.67) and (100.88 ±21.49) points, respectively. The results of regression analysis showed that receiving spiritual education ( β=0.26, P<0.05), professional sadness ( β=-0.08, P<0.05) and perceiving hospital ethical atmosphere ( β=0.63, P<0.05) entered the regression equation. Conclusions:The spiritual care ability of hospice nurses is at the medium level. Increasing spiritual education, taking measures to reduce occupational sadness and create a harmonious working atmosphere can improve the spiritual care ability of nurses to a certain extent and improve the quality of hospice care.

Abstract: To explore the effect of eriodictyol(Eri) on the proliferation and apoptosis of triple-negative breast cancer MDA-MB-231 cells and its possible mechanism. Methods: MDA-MB-231 cells were treated with different concentrations of Eri. MTT method was used to detect the level of cell proliferation. Plate clone method was used to detect the the level of cell clonality. The apoptosis level was detected by flow cytometry. Western blot was used to detect protein expression levels of Cleaved-caspase-3, Bax, Bcl-2, c-Myc and AR. MDA-MB-231 cells were transfected with si-c-Myc and then combined treatment with 50 μmol/L Eri. MTT method was used to detect the level of cell proliferation. The apoptosis level was detected by flow cytometry. Western blot was used to detect protein expression levels of c-Myc and AR. Results: Eri inhibited the proliferation activity of MDA-MB-231 cells in a dose and time-dependent manner. Treatment with different concentrations of Eri reduced cloning ability of MDA-MB-231 cells, promoted cell apoptosis, up-regulated the protein expression levels of Cleaved-caspase-3 and Bax, and down-regulated the protein expression level of Bcl-2, c-Myc and AR. Knockdown of c-Myc expression inhibited MDA-MB-231 cells growth, promoted cell apoptosis, and down-regulated the protein expression level of c-Myc and AR, while combined treatment with 50 μmol/L Eri could not enhance the situation. Conclusion Er inhibits proliferation and induces apoptosis in triple-negative breast cancer MDA-MB-231 cells, which may be achieved by inhibiting c-Myc/AR axis.

Objective:To explore the application effect of online-offline mixed teaching mode in the teaching of histology and embryology.Methods:Two classes of students majoring in psychiatry from Batch 2020 were randomized into experimental group ( n = 100), and two classes of students majoring in general practice in 2020 grade were randomized into the control group ( n = 99). The online-offline mixed teaching mode was used in the experimental group, while a traditional teaching mode was used in the control group. The online test scores, final scores and questionnaire satisfaction of the two groups of students were evaluated on the teaching effect. All data were statistically processed by SPSS 19.0, and the comparison between groups was performed by t test. Results:The online test scores of the experimental group [(8.55±1.18) vs. (6.33±0.91)] and final scores [(85.56±3.32) vs. (72.24±2.71)] were significantly higher than those of the control group ( P < 0.05). Compared with the control group, the experimental group's satisfaction scores of the online-offline mixed teaching mode were significantly higher in students' learning interest, learning autonomy, time management ability, teamwork, interactive communication, knowledge understanding and memory ability ( P < 0.05). Conclusion:The online-offline mixed teaching mode can improve the histology and embryology teaching effect and promote the students' interest in learning and autonomous learning ability.

Objective To investigate the distribution of urinary iodine level and its relationship with thyroid function in Tibetan adults in Lhasa. Methods Tibetan residents living in Lhasa and its surrounding countryside were recruited by the method of multistage randomized cluster sampling. Their salt iodine, drinking water iodine, urinary iodine, and thyroid function levels were detected. According to the urinary iodine level, these subjects were divided into the iodine deficiency group ( urinary iodine<100μg/L) , the iodine enough group ( urine iodine 100-199μg/L) , the iodine adequate group ( urine iodine 200-299 μg/L ) and the iodine excessive group ( urine iodine≥300μg/L) . The differences in thyroid function among various groups were compared. Results A total of 2235 subjects were included in the study. The overall level of urinary iodine was in skewed distribution, with a median ( upper and lower quartiles) of 154 (99, 229) μg/L. The proportion of subjects with insufficient iodine intake was 25.7％, while those of the enough, adequate, and excessive groups were 41. 5％, 21. 3％, and 11. 5％, respectively. There was no significant difference in urine iodine level between males and females [152(95,219)μg/L vs 155(100,232)μg/L P>0.05]. The urinary iodine levels in residents of urban were higher than those in rural residents [157(101,232)μg/L vs 140(92,200)μg/L, P<0.05]. The urinary iodine levels in the young, middle-aged, and elderly groups were 175 ( 116,256) , 136 ( 91, 200) , and 116 ( 68, 164)μg/L respectively, showing a gradual decrease in urine iodine level with aging (P<0.05). The average salt iodine content of Tibetan adults in Lhasa was 23.16 mg/kg, and that in drinking water was 4.33μg/L. There were no significant differences in TSH levels among various iodine intake groups ( P>0.05) . The levels of thyroid peroxidase antibody ( TPOAb) and thyroglobulin antibody ( TGAb) were gradually decreased with the increase of urinary iodine level (P<0.05). Conclusion More than 50％ of Tibetans are at the status of low iodine and high iodine intakes in Lhasa. Although the salt iodine content meets national standards, the drinking water iodine content is lower than that standard.

Objective To discuss the application of blending learning based on MOOC in Histology and Embryology, so as to improve students' learning effectiveness. Methods Nursing undergraduates in class one of 2017 grade were randomly selected as experimental group (n=47) , and nursing undergraduates in class two as control group (n=48), with blending learning and traditional teaching model adopted, respec-tively. SPSS 19.0 was applied to processing the data and T test were used to compare the results of the final exam of this course and the evaluation scale of students' independent learning ability in two groups. Results The experimental scores [(24.22±5.08) vs. (18.49±4.65)], paper test scores [(52.37±6.24) vs. (47.15± 5.99)], and total score [(76.61±7.22) vs. (62.83±7.36)], which shows the scores of experimental group were statistically higher than those of the control group. According to the evaluation scale of students' inde-pendent learning ability, the self-learning ability of the experimental group was better than that of the control group, with significant differences (P<0.05). Conclusion Blending learning can be applied to the teaching of Histology and Embryology, which can effectively improve learning quality, with satisfactory teaching effects to both teachers and students.