ObjectiveTo investigate the effect of Dendrobium officinale polysaccharide （DOP）on CCl₄-induced hepatic fibrosis（HF）and its mechanism. MethodsA total of 56 male SD rats were randomly divided into seven groups： normal group（NG），model group（MG），colchicine group（CG， 0.1 mg/kg）， Fuzheng Huayu group（FG， 0.45 g/kg），low-dose DOP group（LDG， 0.05 g/kg），middle-dose DOP group（MDG， 0.1 g/kg）and high-dose DOP group（HDG，0.2 g/kg），with 8 rats in each group. HF rat model was established by subcutaneous injection with 40% CCl₄ olive oil mixture， every 3-day for 10 weeks. At the end of the sixth week， the drug groups were treated with colchicine， Fuzheng Huayu and DOP solution by gavage respectively， once a day for 4 weeks. NG and MG groups were similarly handled with an equal amount of 0.9 % normal saline. Liver histopathology was detected using hematoxylin-eosin （HE）， Masson and Sirius red staining； blood biochemistry was tested for liver function and four indicators of HF； RT-qPCR and Western Blot were used to measure the expression of α-SMA， Col-I， E-cadherin， and ZEB1 genes and proteins in the liver tissues of rats， respectively. ResultsHE， Masson， and Sirius red staining showed that the liver tissue of MG rats had typical pathologic features of HF， and the degree of HF was alleviated in LDG， MDG， and HDG rats， respectively. Liver function test results showed that the serum AST， TBIL， and AKP levels were significantly lower in LDG， MDG， and HDG， compared with those of the MG （P < 0.05 or < 0.01）. Meanwhile， ALT levels in serum deceased remarkably except in LDG （P < 0.05 or < 0.01）. The four results of HF showed that the serum HA， LN， PC-Ⅲ， and COL-Ⅳ levels in LDG， MDG， and HDG rats were significantly decreased compared with those of the MG （P < 0.05 or < 0.01）. The relative expressions of α-SMA， COL-I， and ZEB1 genes and proteins were significantly decreased in the liver tissues of LDG， MDG， and HDG （P < 0.05 or < 0.01）， and the relative expression of E-cadherin gene and protein increased （P < 0.05 or < 0.01）. In addition， the expressions of HA， α-SMA， COL-I， ZEB1 and E-cadherin were dependent on the dose of DOP. ConclusionDOP alleviated the degree of CCl₄ induced HF in rats by inhibiting the epithelial-mesenchymal transition in liver tissue.

Establishing a governance structure and an operational model that is compatible with modern hospital manage-ment systems,deepening the reform of hospital management institutions,and exploring the implementation of Super-department System with unified functions are inevitable requirements for promoting the high-quality development of public hospitals.Hospital of Stomatology of Sun Yat-sen University takes the Xi Jinping Thought on Socialism with Chinese Characteristics for a New Era as a guide and fully implements the"Opinions of the General Office of the State Council on Promoting the High Quality Development of Public Hospitals,"integrates party building work and vocational work,carries out practical exploration of the reform of the Su-per-department System,and leads the hospital to achieve phased results in high-quality development.

Natural killer (NK) cells are a part of the innate immune system, providing the first line of defense against pathogens and cancer cells. NK cells have multiple ways to kill tumor cells and have a stronger anti-tumor effect than T cells. NK cells-based adoptive cell immunotherapy has gradually shown its great advantages in the treatment of hematologic malignancies. This paper reviews the physiology of NK cells, the mechanism of chimeric antigen receptor (CAR)-NK cells, and the current clinical application of CAR-NK cells.

Objective:To investigate the relationship between the lowest hemoglobin value during hospitalization and the prognosis in patients with extensive burns, in order to explore the hemoglobin warning threshold for blood transfusion in patients with extensive burns.Methods:The research was a retrospective observational study. From October 2012 to October 2022, 288 patients with extensive burns who met the inclusion criteria were admitted to the First Affiliated Hospital of Army Medical University (the Third Military Medical University), including 243 males and 45 females, aged 18 to 65 years. These patients were assigned to the death group ( n=54) and the survival group ( n=234) based on their final prognosis. The clinical data including gender, age, body mass index, total burn area, full-thickness burn area, time of first operation after injury, preoperative prothrombin time (PT) and activated partial thromboplastin time (APTT) and hemoglobin level of the first surgery, complication of inhalation injury, number of surgeries, total surgical area, total surgical time, total length of hospital stay, and highest procalcitonin value, lowest platelet count and hemoglobin values, and occurrence of sepsis during hospitalization were compared between the two groups of patients. According to the lowest hemoglobin value during hospitalization, the patients were assigned to <65 g/L group, ≥65 g/L and <75 g/L group, ≥75 g/L and <85 g/L group, and ≥85 g/L group. The total length of hospital stay, mortality and incidence of sepsis during hospitalization, and mortality within 90 days after injury were compared among the four groups of patients. The relationship between the lowest hemoglobin value during hospitalization and the mortality risk of patients with extensive burns was analyzed using a restricted cubic spline model before and after adjusting covariates. A logistic regression model was adopted to analyze the relationship between the lowest hemoglobin value during hospitalization and the mortality risk of patients with extensive burns after adjusting covariates, with the lowest hemoglobin value during hospitalization as a continuous variable and a categorical variable, separately. Results:Compared with those in survival group, the total burn area, full-thickness burn area, and total surgical area of patients in death group were significantly increased, the preoperative APTT of the first surgery was significantly prolonged, the number of surgeries was significantly reduced, the total length of hospital stay was significantly shortened, the highest procalcitonin value during hospitalization was significantly increased, the lowest platelet count and hemoglobin values during hospitalization were significantly decreased, and the incidence proportion of sepsis during hospitalization was significantly increased (with Z values of -6.72, -5.40, -2.15, -2.99, -2.21, -7.84, -6.23, -7.03, and -3.43, respectively, χ2=161.95, P values all <0.05). There were no statistically significant differences in the other clinical data of patients between the two groups ( P>0.05). There were statistically significant differences in mortality and incidence of sepsis during hospitalization, and mortality within 90 days after injury of patients among the four groups divided according to the lowest hemoglobin value during hospitalization (with χ2 values of 12.12, 15.93, and 10.62, respectively, P<0.05). There was no statistically significant difference in the total length of hospital stay of patients among the four groups ( P>0.05). The restricted cubic spline model analysis revealed an approximately linear relationship between the lowest hemoglobin value during hospitalization and the mortality risk of patients with extensive burns before and after adjusting covariates (with χ2 values of 0.81 and 0.75, respectively, P>0.05). After adjusting covariates, the logistic regression model analysis showed that the mortality risk of patients with extensive burns increased with decreasing hemoglobin when the lowest hemoglobin value during hospitalization was analyzed as a continuous variable (with odds ratio of 0.96, with 95% confidence interval of 0.92 to 0.99, P<0.05). When using the median value of 75.5 g/L as the cut-off value for categorizing the lowest hemoglobin value during hospitalization, there was no statistically significant difference in the mortality risk between patients with hemoglobin <75.5 g/L and those with hemoglobin ≥75.5 g/L ( P>0.05). When the patients were divided into four groups based on the lowest hemoglobin value during hospitalization as above, using ≥85 g/L group as a reference, only patients in <65 g/L group had a significantly increased mortality risk (with odds ratio of 5.37, with 95% confidence interval of 1.57 to 18.29, P<0.05). Conclusions:There is an approximately linear correlation between the lowest hemoglobin value during hospitalization and the mortality risk of patients with extensive burns. When the hemoglobin level drops to 65 g/L or lower, the mortality risk of patients increases significantly, suggesting that a hemoglobin level of 65 g/L could serve as a warning threshold for blood transfusion in patients with extensive burns.

Objective:To carry out a scoping review on characteristics and effects of intervention program for promoting motor behavior among older adults in the community based on transtheoretical model (TTM), so as to explore the mechanism and connotation of TTM guiding strategy selection in the intervention program.Methods:The literature on the intervention program for promoting motor behavior among older adults in the community based on TTM was systematically searched in PubMed, Embase, CINAHL, Cochrane Library, PsycINFO, China National Knowledge Infrastructure and Wanfang Data. The search period was from database establishment to October 11, 2023. Two researchers conducted a summary and data analysis of the included literature.Results:A total of 15 articles were included, and the intervention framework included two types according to behavior change stages and behavior change patterns. The intervention strategy mainly included 17 items, such as emphasizing the benefits of exercise and drawbacks of no-exercise, establishing family support relationships, sharing exemplary experiences, rewarding, setting reminders, and signing commitments. The intervention strategies mainly involved 14 forms such as health lectures, one-on-one communication, exercise commitment letters, exercise logs, group communication meetings, and material/honor. The outcome measures consisted of feasibility (safety, retention, attendance, satisfaction) and effectiveness (exercise compliance, behavioral stage changes, physical function, self-efficacy, decision balance and so on) .Conclusions:The stages of change in TTM can guide the design of intervention frameworks for promoting motor behavior among older adults in the community, and the change program can guide the intervention strategies and design of application forms. The characteristic of the TTM based intervention program for promoting motor behavior among older adults in the community is that it contains intervention strategies that are suitable for each stage of behavior, and has short-term effectiveness and feasibility in terms of results. It is necessary to further clarify the details of the intervention program to explore its long-term effectiveness, and conduct follow-up.

Objective:To conduct a scoping review on gamified exercise interventions for elderly patients with cognitive impairment to provide insights for the application of gamification design in exercise programs for this population.Methods:Guided by the scoping review framework proposed by Arksey and O'Malley, a systematic search was conducted in databases including China National Knowledge Infrastructure, Wanfang, VIP, SinoMed, PubMed, Cochrane Library, CINAHL, Web of Science, Scopus, ProQuest, and Wiley Online Library. The search covered the period from the establishment of the databases to June 12, 2024. An integrative analysis was performed on the included literature.Results:A total of 12 studies were included. The most commonly used gamification elements were achievement- and progress-oriented features, while the most frequently applied behavior change theories were behavior change techniques and social cognitive theory.Conclusions:Gamification-based exercise interventions can improve adherence to exercise programs in elderly patients with cognitive impairment, promote physical activity, and enhance cognitive function. Future research should focus on combining various theories with different gamification elements to encourage proactive exercise behavior in elderly individuals with cognitive impairment.

Objective:To explore the relationship between olfactory dysfunction and mild cognitive impairment (MCI) among elderly people in the community so as to provide a reference for screening and risk factor management of the MCI population.Methods:From March to June 2023, elderly individuals from Donghuashi and Fangzhuang communities in Beijing were selected as the study subjects by convenience sampling. Study subjects were surveyed using the General Information Questionnaire, Mini-Mental State Examination, Montreal Cognitive Assessment, Barthel Index, Sniffin' Sticks Test, 7-item Generalized Anxiety Disorder Scale, and 15-item Geriatric Depression Scale. Binary logistic regression was used to analyze the factors that influence MCI among elderly people in the community.Results:A total of 252 questionnaires were distributed and 243 valid questionnaires were collected, with an effective response rate of 96.4% (243/252). Among 243 elderly people in the community, 75 experienced MCI, with an incidence of 30.9% (75/243). Binary Logistic regression analysis showed that the probability of MCI in elderly people with olfactory dysfunctions was 1.979 times that in elderly people without olfactory dysfunctions and age, previous occupational type and frequency of mental activity were the influencing factors for the occurrence of MCI ( P<0.05) . Conclusions:The incidence of MCI is high among elderly people in the community, especially those with olfactory dysfunctions. Nursing staff should pay attention to the role of olfactory dysfunction in cognitive function screening and risk factor management.

Objective:To study the effects of different carbon dioxide (CO 2) pneumoperitoneum pressures combined general anesthesia with sevoflurane-propofol on cerebral oxygenmetabolism balance and stress response in elderly patients undergoing colorectal cancer surgery. Methods:A retrospective collection of 100 colon cancer cases from February 2020 to February 2021 in the Jiading Branch of Shanghai First People′s Hospital (Jiangqiao Hospital, Jiading District) and the Shanghai First People′s Hospital were divided into low pressure group and high pressure group according to different CO 2 pneumoperitoneum pressure values, each with 50 cases and 12 mmHg(1 mmHg = 0.133 kPa) and 18 mmHg CO 2 pneumoperitoneum pressure values were used to inflate, and the perioperative status, cerebral oxygen metabolism status, and stress response of the two groups were observed. Results:The take food time, first time out of bed in the low pressure group were lower than those in the high pressure group: (45.67 ± 7.34) h vs. (49.67 ± 8.16) h, (34.69 ± 8.26) h vs. (39.87 ± 7.16) h, there were statistical differences( P<0.05). The time of first anal exhaust and hospital stay in the two groups had no significant differences ( P>0.05). Repeated measures analysis of variance results showed that the levels of partial pressure of carbon dioxide in artery, oxyhemoglobin saturation, arterial blood lactate acid, benous blood lactic acid were different followed the time and treatment methods ( P<0.05). The levels of heart rate, mean arterial pressure, cortisol and thyroid stimulating hormone in the low pressure group were higher than those in the high pressure group: (73.68 ± 6.35) beats/min vs. (84.84 ± 6.86) beats/min, (81.67 ± 13.68) mmHg vs. (93.68 ± 14.37) mmHg, (100.24 ± 12.34) μg/L vs. (135.68 ± 13.69) μg/L, (3.12 ± 0.43) mU/L vs. (3.54 ± 0.34) mU/L, there were statistical differences ( P<0.05). Conclusions:Different CO 2 pneumoperitoneal pressures affect the brain oxygen metabolism of patients, and clinical attention should be paid to them.

Objective:To investigate the hepatitis B surface antigen (HBsAg) clearance condition and its predictive factors after treatment with nucleos(t)ide analogues to pegylated interferon-α add-on therapy in patients with chronic hepatitis B.Methods:Patients with chronic hepatitis B who visited the First Affiliated Hospital of Zhengzhou University from 2018~2019 were prospectively enrolled. HBsAg≤ 1500 IU/mL, hepatitis B e antigen-negative, HBV DNA undetectable, received antiviral treatment with nucleos(t)ide analogues for at least one year, and pegylated interferon-α add-on therapy for 48 weeks were included. The primary endpoint of study was to determine the proportion of HBsAg clearance at 72 weeks. Concurrently, the predictive factors for HBsAg clearance were analyzed. Quantitative and qualitative data were analyzed using a t-test or non-parametric test and a Fisher's exact test.Results:A total of 38 cases were included in this study, of which 13 cases obtained HBsAg clearance at 48 weeks of therapy and another six cases obtained HBsAg clearance throughout the extended treatment period of 72 weeks, accounting for 50.00% of all enrolled patients. There was a significant difference in HBsAg dynamics between the HBsAg clearance group and the non-clearance group (P < 0.05). Univariate logistic regression analysis showed that patients' age, baseline, 12-and 24-week HBsAg levels, and early HBsAg reduction were predictive factors for HBsAg clearance at 72 weeks of treatment. Multivariate logistic regression analysis showed that age (OR = 1.311; P = 0.016; 95% confidence interval: 1.051~1.635) and HBsAg levels at 24 weeks of treatment (OR = 4.481; P = 0.004; 95% confidence interval: 1.634~12.290) were independent predictors for HBsAg clearance.Conclusion:Hepatitis B e antigen-negative, nucleos(t)ide analogue treated, HBsAg ≤ 1500 IU/mL, and HBV DNA undetectable, peg-IFNα add-on treatment for 48 weeks could promote HBsAg clearance in patients with chronic hepatitis B. Six of the sixteen cases (37.50%) who did not obtain HBsAg clearance at week 48 did so with the course of therapy extended to week 72. Hence, the optimal individualized treatment strategy should be customized according to the predictors rather than the fixed 48-week course. Age (≤ 38), baseline HBsAg level (≤2.86 log 10IU/ml), HBsAg level at 24 weeks (≤ 0.92 log 10IU/ml), and 12-week HBsAg decrease from baseline (≥ 0.67 log 10IU/ml) indicate that patients are highly likely to obtain HBsAg clearance at the 72 weeks of combination therapy, in which the combined indicator based on HBsAg level ≤0.92 log 10IU/ml at 24 weeks will identify 85.0% to 100.0% of patients with HBsAg clearance.

Exercise can maintain and improve cognition and promoting functional recovery in stroke patients, but exercise compliance is not optimistic. This paper reviews the assessment tools and influencing factors for exercise compliance in stroke patients, so as to provide reference for improving exercise compliance in stroke patients.