Purpose/Significance The internet consultation user portrait is constructed to explore the consultation topic,improve the consultation service quality,reduce the communication barriers between doctors and patients,and provide targeted treatment in an online and offline manner.Method/Process Python crawler is used to obtain the autism diagnosis data of a medical platform,and the combined model of LDA and TF-TFIDF is used to divide the data,and the user group classification is realized after dimensionality reduction clus-tering.Finally,the characteristic sets of different user groups are calculated and output by logistic regression model to construct the por-trait.Result/Conclusion The consultation content of users mainly focuses on 11 topics.The platform can optimize the consultation filling template based on the typical characteristics of the subject content to improve the accuracy of the disease description,consultation effi-ciency and satisfaction of patients.

【Objective】 To analyze the basic characteristics of whole blood donors from blood stations before and after the outbreak of COVID-19. 【Methods】 After excluding invalid data, data related to the basic characteristics of whole blood donors collected from 26 blood stations in China during 2018 to 2021 were statistically analyzed, including the trend of total whole blood donors, the number of repeated blood donors, the frequency of blood donation, the average age of donors and the recruitment of first-time blood donors. 【Results】 Affected by the epidemic, 8 out of 14 indicators were with large variations, accounting for 57%. The overall growth rate of total whole blood donors during the epidemic was higher than before the epidemic (P<0.05).The number of repeated blood donors has shown an increased trend, with a higher number during the epidemic than before (P<0.05). The frequency of blood donation was lower during the epidemic than before(P<0.05).Average ages of blood donors and female blood donors fluctuated widely during the epidemic, both higher than those before the epidemic(P<0.05).The donation rate of first-time blood donors <25 years old and ≥25 years old varied widely and irregularly during the epidemic (both P<0.05). The percentage of first-time blood donors fluctuated irregularly during the epidemic, with overall percentage lower than that before the epidemic(P<0.05). 【Conclusion】 Whole blood donors from 26 blood stations increased after the outbreak of COVID-19, and some indicators in certain areas showed significant fluctuations during the epidemic.

Objectives:This study aimed to assess the efficacy and safety of bendamustine in combination with rituximab (BR regimen) for the treatment of newly diagnosed indolent B-cell non-Hodgkin's lymphoma (B-iNHL) and elderly mantle cell lymphoma (eMCL) .Methods:From December 1, 2020 to September 10, 2022, a multi-center prospective study was conducted across ten Grade A tertiary hospitals in Shandong Province, China. The BR regimen was administered to evaluate its efficacy and safety in newly diagnosed B-iNHL and eMCL patients, and all completed at least four cycles of induction therapy.Results:The 72 enrolled patients with B-iNHL or MCL were aged 24-74 years, with a median age of 55 years. Eastern Cooperative Oncology Group (ECOG) performance status scores of 0-1 were observed in 76.4% of patients, while 23.6% had scores of 2. Disease distribution included follicular lymphoma (FL) (51.4% ), marginal zone lymphoma (MZL) (33.3% ), eMCL (11.1% ), and the unknown subtype (4.2% ). According to the Ann Arbor staging system, 16.7% and 65.3% of patients were diagnosed with stage Ⅲ and stage Ⅳ lymphomas, respectively. Following four cycles of BR induction therapy, the overall response rate was 98.6%, with a complete response (CR) rate of 83.3% and a partial response (PR) rate of 15.3%. Only one eMCL patient experienced disease progression during treatment, and only one FL patient experienced a relapse. Even when evaluated using CT alone, the CR rate was 63.9%, considering the differences between PET/CT and CT assessments. The median follow-up duration was 11 months (range: 4-22), with a PFS rate of 96.8% and an OS rate of 100.0%. The main hematologic adverse reactions included grade 3-4 leukopenia (27.8%, with febrile neutropenia observed in 8.3% of patients), grade 3-4 lymphopenia (23.6% ), grade 3-4 anemia (5.6% ), and grade 3-4 thrombocytopenia (4.2% ). The main non-hematologic adverse reactions such as fatigue, nausea/vomiting, rash, and infections occurred in less than 20.0% of patients.Conclusion:Within the scope of this clinical trial conducted in China, the BR regimen demonstrated efficacy and safety in treating newly diagnosed B-iNHL and eMCL patients.

Objective:To explore the experience of teachers from Guangdong and Macao in nursing teaching cooperation, the existing problems in current teaching cooperation and suggestions for improvement.Methods:From January to April 2021, using descriptive qualitative method to conduct in-depth among eight clinical tutors from The Third Affiliated Hospital of Guangzhou Medical University who teach Macao nursing students, and four teachers from Kiang Wu Nursing College of Macao using the purposive sampling method. And adopted content analysis for data analysis.Results:A total of 4 themes and 2 sub-themes were analyzed: the positive impact of cross-border teaching cooperation projects including developed the nursing business of the two places and deepened the cooperative relationship between the two places; limiting the depth and breadth of knowledge transfer because of the short cross-border learning time; the imbalance between students′ abilities and teachers′ expectations; expectations for homogeneous internships for heterogeneous groups.Conclusions:Cross-border nursing teaching cooperation is an important promoter for the development of nursing education between Guangdong and Macao, but there are still deficiencies in cooperation, and it is necessary for the two places to strengthen the construction of a sharing platform for teaching resources to promote the development of nursing education in the Guangdong-Hong Kong-Macao Greater Bay Area.

Objective:To observe the results of electroacupuncture (EA) on the resuscitation of a rat model of asphyxia cardiac arrest (CA). And to explore its effect on the neurologic deficits and hemodynamic instability of post-cardiac arrest syndrome (PCAS).Methods:A total of 107 male SD rats were randomly divided into sham, CA, and EA groups. Each group received arterial catheterization and tracheal intubation. The sham group was not induced asphyxia. Asphyxial cardiac arrest was established by endotracheal tube clamping. Rats in the CA group received basic respiratory support and fluid resuscitation in return of spontaneous circulation (ROSC) and rats in the EA group received EA at Baihui based on the treatment of CA group after ROSC, with a dense-dispersed wave at frequencies of 4-20 Hz, while the current intensity was adjusted minimum to induce a twitch of the scalp, the course of treatment was 30 minutes. The baseline data, hemodynamics after ROSC, neurological deficit score (NDS), pathological changes of brain tissue, and levels of serum biomarker were recorded and compared among the three groups. The 72-hour survival of rats was analyzed by Kaplan-Meier survival curve. Hematoxylin-eosin (HE) staining was used to observe the pathological changes of necrotic neurons in the hippocampal CA1 region of rat brain. Meanwhile, Nissl staining and TdT-mediated dUTP nick-end labeling (TUNEL) were used to detect cell apoptosis and injury.Results:Compared with the CA group, the mean arterial pressure (MAP) in the EA group increased significantly at 15 minutes after ROSC [mmHg (1 mmHg≈0.133 kPa): 125.00 (94.00, 136.25) vs. 92.00 (72.00, 122.50), P < 0.05]. There was no significant difference in the NDS score between the EA group and the sham group. Still, the NDS score of the rats in the CA group at 6 hours after ROSC were significantly lower than that in the sham group (46.00±10.61 vs. 80.00±0.00, P < 0.05). Kaplan-Meier survival curve analysis showed that EA did not improve the 72-hour survival rate of rats (100% in the sham group, 25% in the CA group, and 30% in the EA group, P > 0.05). The analysis by TUNEL showed that the apoptosis rate of neurons in CA1 region of the hippocampus in EA group at 6 hours after ROSC was significantly lower than that in CA group [(62.84±2.67)% vs. (71.29±3.70)%, P < 0.05]. Compared with the CA group, the level of serum S100 calcium binding protein B (S100B) in the EA group at 6 hours after ROSC was significantly lower (ng/L: 19.30±13.87 vs. 132.28±31.67, P < 0.05), but there were no significant differences in the levels of tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) between these two groups. Conclusions:In the present study, EA at Baihui can stabilize the hemodynamic, moreover, it has a particular neuroprotective effect on PCAS rats. Still, EA at Baihui does not reduce the systemic inflammatory response and improve the survival rate of rats, and its mechanism remains to be verified in further research.

Objective To investigate the effect of incremental load training on AMP-activated protein kinase (AMPK) phosphorylation in skeletal muscle satellite cells of aged mice. Methods Experimental mice were divided into 3 groups: young control group (YC group, n=12), old control group (OC group, n=12) and old training group (OT group, n=12). The mice in OT group received incremental load training, and CD45-/CD31-/Sca1-/VCAM (CD106) + cells were isolated by flow cytometry sorting. Desmin, Myod myogenic staining and myogenic differentiation culture were used for identification of muscle satellite cells, and the p-AMPK level of muscle satellite cells was detected by immunohistochemistry combined with Western blotting method. Results The expression levels of AMPK and p-AMPK in skeletal muscle satellite cells in YC group were significantly higher than those in OC group (P<0.05). AMPK expression in OT group and OC group did not change significantly (P>0.05), while p-AMPK expression level in OT group was significant higher than that in OC group (P<0.05). Conclusions Incremental load training can promote AMPK phosphorylation of skeletal muscle satellite cells in aged mice, and improve energy metabolism of skeletal muscle in aged mice.

Objective: To explore the fear of evaluation in college student with social anxiety, in order to reveal the existence of implicit fear of evaluation and its relationships with explicit fear of evaluation. Methods: A total of 490 college students, selected from Fuzhou University by using convenience cluster sampling method, were surveyed with Interaction Anxiousness Scale (IAS). Finally, 65 valid subjects have completed the Implicit Association Test. Results: Social anxiety students explicit fear of evaluation was significantly higher than those of non social anxiety college students, including positive and negative ( t =7.03, 5.66 , P <0.01). There were significant differences between self positive evaluation of college students social anxiety (1 019.26±124.44 ms) and self neutral evaluation (909.78±175.20 ms)( t =5.67, P <0.05). In two groups of college students, there were significant differences between self negative evaluation[(1 142.54±157.06, 1 120.88± 216.33 )ms] and self neutral evaluation[(921.53±161.28, 783.72±140.74)ms]( t =9.17, 12.33, P <0.01). Implicit fear of evaluation were found to exist among students with social anxiety and without social anxiety. There was a low correlation between explicit and implicit fear of evaluation between social anxiety students and non social anxiety students( P >0.05); There was no significant gender difference between implicit and explicit fear of evaluation( P > 0.05 ). Conclusion Social anxiety college students have explicit and implicit fear of evaluation, with separate and independent effects.

Objective:To investigate the clinical significance of preserving supraclavicular nerve in the reduction and fixation of clavicular fracture.Methods:A retrospective study was conducted of the 68 pa-tients with clavicular fracture who had been treated surgically from October 2016 to April 2018 at Department of Orthopedics and Traumatology, Heyuan Hospital of Traditional Chinese Medicine.They were 35 males and 33 females, aged from 25 to 45 years (average, 34.8 years).The supraclavicular nerve was preserved in the re-duction and fixation of clavicular fracture in 32 patients (reservation group) but not in the other 36 ones (control group).The 2 groups were compared in terms of operation time, intraoperative blood loss, fracture healing time; postoperative pain tolerance, feeling (by the British Medical Research Council assessment), shoulder function (by the Constant-Murley scoring) and impact of numbness on life.Results:The 2 groups were compatible due to insignificant differences in the general clinical data between them ( P>0.05).All the 68 patients were followed up for 12 to 26 months (average, 15 months).There was no significant difference between the 2 groups either in intraoperative blood loss or fracture healing time ( P>0.05).The preservation group had significant longer operation time (72.6 min±7.2 min) than the control group (47.3 min±7.4 min), but a significantly lower rate of analgesic usage on the postoperative day [6.3%(2/32)] than the control group [91.7%(33/36)] (both P<0.05).By the British Medical Research Council assessment, the postoperative feeling was rated as S3 or S4 in 93.8%(30/32) of the patients in the preservation group, significantly higher than the 72.2% (26/36) of the control group ( P<0.05).The preservation group was also significantly better than the control group in Constant-Murley scores of the injured shoulder [100.0 (93.5, 100.0) versus 87.0 (81.0, 89.0)] and impact of numbness on life [0 versus 50.0%(18/36)] (both P<0.05). Conclusion:In surgical treatment of clavicular fracture, preservation of the supraclavicular nerve can have a positive effect on reducing postoperative pain in the operative area and impact of numbness on life.

Objective:To investigate the current situation of cytomegalovirus (CMV) infection in infants in Lishui, and summarize the related factors of CMV infection, evaluate its influence on the growth and development of infants, and provide evidence for the prevention and control of CMV infection.Methods:In this study, 2 254 cases of infants admitted in pediatric ward in Lishui Maternal and Child Health Hospital, Qingtian County People′s Hospital, Suichang County People′s Hospital, Qingyuan County People′s Hospital from January 1, 2015 to December 31, 2017 with integral clinical data were selected. All the babies were followed up from the time when they were born to 1 year old. The serum CMV antibody and the urine CMV-DNA were screened, the general situation and clinical features of CMV infection were summarized, and the relevant factors of infants CMV infection were analyzed and screened by the single factor and multiple factors analysis. They were followed up to 1 year old to clarify the influence of CMV infection on the growth and development of infants.Results:From 2015 to 2017, the total positive infection rate of CMV-IgM in infants under 1 year old in Lishui was 10.43%(235/2 254), and CMV-IgM positive infection decreased year by year. The positive rate of CMV-IgG did not change significantly with time. The positive rate of CMV-IgM was the highest at 1—3 months, and up to 15.29% (61/399). The positive rate of CMV-IgM decreased with the age of the babies. The positive rate of CMV-IgG increased with the age of the babies. The positive rate of CMV-IgM in infants showed no significant difference in gender ( P>0.05). The positive rate of CMV-IgM was higher in men than that in women [65.43% (810/1 238) vs. 55.51% (564/1 016)], and there was significant difference ( P<0.05). The gestational age of the infected group was lower than that of the non-infected group [(37.41 ± 1.63) weeks vs. (38.97 ± 0.97) weeks], and the breast-feeding rate of the infected group was higher than that of the non-infected group [57.87%(136/235) vs. 40.00%(40/100)], and there were significant differences ( P<0.05). Thrombocytopenia, the increase of transaminase, necrotizing enterocolitis of newborn, and hepatosplenomegaly of infected group is higher that of the non-infected group [18.72%(44/235) vs. 1.00% (1/100), 29.36% (69/235) vs. 13.00% (13/100), 26.81% (63/235) vs. 10.00% (10/100), 9.79% (23/235) vs. 0], and there were significant differences ( P<0.05). Gestational age and breast-feeding were possible risk factors for CMV infection in infants under 1 year old ( P<0.05). There was no significant difference in height, weight, head circumference and intelligence score between the infected group and the non-infected group at the age of 1 year ( P>0.05). The total abnormal rate of hearing development and the abnormal detection rate of B-ultrasound in the infected group were higher than those in the non-infected group [13.62%(64/470) vs. 1.00%(2/200), 6.38%(15/235) vs. 0], and there were significant differences ( P<0.05). Conclusions:The CMV active infection rate of infants under 1 year old in Lishui is relatively high and decreases year by year. It decreases with the prolongation of birth time, and there is no gender difference. Gestational age and breast-feeding are the risk factors for active CMV infection in infants. CMV infection affects the hearing development and the brain development of infants under 1 year old, which is the main cause of hepatitis. It is necessary to pay attention to the prevention of CMV infection, strengthen maternal perinatal health care, and strengthen the screening of CMV infection in high-risk groups.

Objective:To explore nursing experimental teaching mode on the basis of simulation technology to improve learning effect.Method:s A total of 374 nursing students of Grade 2012 to 2014 were selected as the experimental group, and 292 nursing students of Grade 2010 to 2011 were selected as the control group. The experimental group adopted the comprehensive experimental teaching based on simulation technology, while the control group used traditional teaching. At the end of the course, the experimental group students were surveyed, and the two groups of students were given a unified examination. Data analyses were performed using SPSS 17.0 and the t-test was adopted to analyze the teaching effect for comparison of the two groups.Result:s The recovery rate of the questionnaires in the experimental group was 100%, and the satisfaction rate was 95%. Behavioral performance self-evaluation showed that students had high self-evaluation in improving their independent learning ability (3.47±0.63), and low self-esteem in caring for the patient's psychological problems (2.62±0.68). The theoretical score of the experimental group was (77.03±2.55), and the theoretical score of the control group was (71.75±3.49). The difference was statistically significant ( P=0.041). Conclusion:The comprehensive nursing experiment project on the basis of simulation technology is conducive to promoting students' autonomous learning and improving their comprehensive quality and professional ability.