As a traditional nutritional and healthy cash crop in China, tea has certain significance in promoting human health and preventing and controlling chronic diseases. Studies have shown that the nutritional health effect of tea is due to its rich functional components, mainly including tea polyphenols, tea pigments, tea polysaccharides, theanine, alkaloids and other bioactive substances. At present, researchers from the academic circles have continuously carried out animal and human experiments on the health effects of various functional components of tea, which has accumulated abundant research data and materials. Based on this, this article reviews the literature on the nutritional and health effects of the main functional components of tea, and adopts the method of evidence-based research to screen and extract relevant data for qualitative and quantitative meta-analysis. Subsequently, the nutritional health effects of the five functional components of tea, namely tea polyphenols, tea pigments, tea polysaccharides, theanine, and alkaloids, are summarized and outlined. Studies have shown that tea polyphenols, tea pigments, tea polysaccharides, theanine and alkaloids have different health effects and are expected to play their unique roles in promoting human health and preventing and controlling diseases.

Objective To study the cellular senescence and molecular mechanism of olaparib in MCF-7 breast cancer cells.Methods The effects of olaparib on the proliferation and migration of MCF-7 cells were detected dynamically by real-time cell analysis(RTCA)technology.The effects of olaparib on the Senescence was detected by using the senescence-associated β-galactosidase(SA-β-gal).Quantitative polymerase chain reaction was used to analyze the effects of olaparib on the expression levels of genes encoding the senescence-associated factors p16,p21,C/EBP homologous protein,interleukin(IL)-6,IL-8,plasminogen activator inhibitor 1,phosphatase and tensin homolog deleted on chromosome 10,p27,retinoblastoma gene,Ki67,and E2F1.The effects of olaparib on the expression levels of the senescence-associated proteins p21,γH2AX,pRB,cyclin D1,insulin-like growth factor binding protein 3,and Ki67 were analyzed by Western Blot.Results Olaparib inhibited the proliferation and migration and induced the senescence of MCF-7 cells.Long-term(96 h)treatment with olaparib significantly up-regulated the gene expression levels of p16,p21,p27,C/EBP homologous protein,IL-6,IL-8,plasminogen activator inhibitor 1,phosphatase and tensin homolog deleted on chromosome 10,and retinoblastoma protein(P＜0.01)and significantly down-regulated the gene expression levels of Ki67 and E2F1(P＜0.01)in MCF-7 cells.Olaparib significantly increased protein expression levels of p21,γH2AX,and insulin-like growth factor binding protein 3 in MCF-7 cells(P＜0.01,P＜0.01,P＜0.05)and significantly decreased cyclin D1,pRB,and Ki67 levels(P＜0.05,P＜0.01,P＜0.05).Conclusions Olaparib can inhibit proliferation and migration and induce senescence in MCF-7 breast cancer cells.

Objective To investigate the application effect of a bedside ultrasound-guided intestinal cleaning program in patients with severe acute pancreatitis.Methods A total of 51 patients with severe acute pancreatitis admitted to the ICU of a tertiary A hospital in Shandong from March to September 2023 were selected by convenience sampling method,and they were divided into an experimental group and a control group according to random number table method.The experimental group was given the bedside ultrasound-guided intestinal cleaning program,and the control group was given the routine intestinal cleaning program.Acute gastrointestinal injury ultrasonography score,the incidence of grade Ⅲ acute gastrointestinal injury and intra-abdominal pressure were compared between the 2 groups before intervention,on the 3rd and 5th day.Results There was an interaction effect between time and group in the comparison of acute gastrointestinal injury ultrasonography scores in the 2 groups(F=7.478,P<0.001);simple effect analysis showed that acute gastrointestinal injury ultrasonography scores in the experimental group were lower than those in control group on the 3rd and 5th day,with statistically significant differences(P<0.05).The incidence of grade Ⅲ acute gastrointestinal injury in the experimental group(23%)was lower than that in the control group(60%),with statistically significant differences(P<0.05).The intra-abdominal pressure had an interaction effect between the 2 groups(F=47.128,P<0.001);simple effect analysis showed that the intra-abdominal pressure in the experimental group was lower than that in the control group on the 3rd and 5th day,with statistically significant differences(P<0.05).Conclusion The bedside ultrasound-guided intestinal cleaning program can improve acute gastrointestinal injury and reduce intra-abdominal hypertension in patients with severe acute pancreatitis.

Cardiovascular disease risk communication is an important tool to help risk individuals understand risk information and guide them to improve their health behaviors.Effective cardiovascular disease risk communication by nurses,who are the subjects of risk communication,is essential to reduce the growing burden of cardiovascular disease and the prevalence of cardiovascular disease.This article provides a 3-aspect overview of the concept and development of health risk communication,factors influencing cardiovascular disease risk communication,and recommendations for its development.It is suggested that when nursing staff carry out CVD risk communication,they should fully consider the actual situation and preference of the communication target and design a personalized risk communication program,to provide references for clinical nursing practice.

Objective:To prepare a 177Lu labeled human epidermal growth factor receptor 2 (HER2) affibody 177Lu-1, 4, 7-triazacyclononane-1, 4, 7-triacetic acid (NOTA)-maleimide (Mal)-cysteine (Cys)-ZHER 2: 342 ( 177Lu-NOTA-MZHER2 for short), and investigate its labeling process and anti-tumor properties. Methods:Two kinds of buffer systems (sodium acetate buffer system and sodium ascorbate buffer system) were investigated. The effects of pH value, precursor mass and reaction temperature on 177Lu labeling NOTA-MZHER2 were compared to obtain optimal labeling conditions. The radiochemical purity of labeled product was determined by instant thin-layer chromatography (ITLC), and its stabilities in PBS and plasma were observed. Human ovarian cancer cell line SKOV-3 was selected for cell internalization and cytotoxicity test to evaluate cell uptake and killing effect of 177Lu-NOTA-MZHER2. SKOV-3 tumor-bearing mice( n=3) were injected with 177Lu-NOTA-MZHER2, and microSPECT/CT imaging was performed. Another 40 tumor-bearing mice were divided into 22.2 MBq group (tail vein injection with probe of 22.2 MBq), control group (tail vein injection with PBS), low-dose group (tumor injection with probe of 3.7 MBq) and high-dose group (tumor injection with probe of 7.4 MBq). Tumor volume and mass of tumor-bearing mice were monitored after injection, and the anti-tumor effect and toxicity of probe were evaluated. Repeated measurement analysis of variance (Bonferroni method) was used to analyze the data. Results:The optimal labeling condition was 70-80 ℃ for 30 min in the system of sodium acetate buffer solution with pH=4 and precursor mass of 50 μg. Under these conditions, the labeling rate of 177Lu-NOTA-MZHER2 was (99.3±0.4)% and radiochemical purity was >99%. After 12 d in PBS and plasma, the radiochemical purities were (95.0±1.5)% and (95.0±2.1)%. Results of cell experiment showed that the internalization of 177Lu-NOTA-MZHER2 accounted for (29.02±3.50)% of the total uptake, and the survival rate of SKOV-3 cells was (48±6)% with the probe concerntration of 6×10 -3 Bq/L. SPECT imaging showed that 177Lu-NOTA-MZHER2 was still concentrated at the tumor site 96 h after injection with a dose of 18.5 MBq. Relative tumor volume (RTV) of tumor-bearing mice in 22.2 MBq group, high-dose group and low-dose group was significantly different from that in control group ( F=21.75, P<0.001). Twenty days after injection, RTV and relative body mass of the tumor-bearing mice in high-dose group were (140±7)% and (80±9)%, respectively. Compared with control group, high-dose group had obvious anti-tumor effect (both P<0.001). Conclusion:177Lu-NOTA-MZHER2 is successfully prepared, which is simple and efficient, and the probe has good anti-tumor effect.

Objective To investigate the correlation between neuropeptide S receptor(NPSR)single nucleotide polymorphism(SNP)(rs323917,rs323920,rs323922,rs2530547,rs324957)and primary insomnia(PI).Methods A total of 157 patients diagnosed with PI in the outpatient department of Center of Sleep Medicine,Gansu Provincial People's Hospital from December 2016 to May 2019 were selected as PI group,and 133 healthy physical examination subjects during the same period were selected as control group.Venous blood samples were collected and DNA,polymerase chain reaction(PCR)amplification and agarose gel electrophoresis were extracted.rs323917,rs323920,rs323922,rs2530547,rs324957 single nucleotide loci were genotypized by target site sequencing.Meanwhile,standard polysomnosis monitoring was performed to analyze the correlation between gene polymorphism and PI.Results There were no significant differences in the genotype distribution of NPSR SNP sites(rs323917,rs323920,rs323922,rs2530547)and allele frequency and rs324957 allele frequency between two groups(P＞0.05).There was significant difference in genotype distribution of rs324957(P=0.034).There was no significant difference in the frequency of different haplotypes between two groups(P＞0.05).Conclusion The expression of rs324957 SNP genotypes in NPSR may be related to PI,and AG genotype is dominant.

Ulcerative colitis is a common disease of the digestive system in China,which seriously affects the quality of life of patients due to its disease characteristics,such as easy recurrence,repeated course of disease and carcinogenic tendency.Neutrophil-to-lymphocyte ratio(NLR)and platelet-to-lymphocyte ratio(PLR)are considered as new inflammatory biomarkers,which have been found to be related with ulcerative colitis.This article reviewed the clinical value of NLR and PLR in ulcerative colitis.

Rheumatoid arthritis （RA）， as an autoimmune disease， is mainly characterized by persistent synovitis. It often involves multiple joints symmetrically and can lead to joint deformity， joint function loss， and even disability in severe cases. The pathogenesis of RA is complex， and the prevention and treatment are complicated. Therefore， it is difficult to cure the disease completely. Previous studies have validated important targets and mechanisms for the prevention and treatment of RA， including the nuclear factor-κB （NF-κB） signaling pathway that controls the inflammatory process， nuclear factor E₂-related factor 2 （Nrf2）/heme oxygenase-1 （HO-1） signaling pathway that regulates oxidative stress， inhibits inflammation， and maintains cell homeostasis， Wnt/β-catenin signaling pathway that plays a key role in cell growth， differentiation， apoptosis， and inflammatory response， anti-inflammatory， anti-oxidation， and silent information regulator 1 （SIRT1） signaling pathway that regulates synovial cells， anti-inflammatory adenylate-activated protein kinase （AMPK） signaling pathway that regulates energy metabolism， and hypoxia-inducible factor-1α （HIF-1α）/vascular endothelial growth factor （VEGF） signaling pathway related to angiogenesis in RA. At the same time， many studies have confirmed that traditional Chinese medicine prevents and treats RA by regulating the above signaling pathways and exerting their related effects， indicating the advantages of traditional Chinese medicine such as multiple regulatory pathways， long-term effects， and less adverse reactions. In this paper， by consulting many research reports， the role of the above-mentioned signaling pathways in RA was clarified， and the latest research results of traditional Chinese medicine intervention in the above-mentioned signaling pathways in the prevention and treatment of RA in recent years were summarized in detail. This paper aims to promote the in-depth study of the pathogenesis of RA and its treatment with traditional Chinese medicine， provide a scientific basis for the rational application of traditional Chinese medicine， and offer useful enlightenment for the development of new drugs and clinical practice for the treatment of RA in the future.

Objective To compare the clinical efficacy of abdominal ultrasound-guided endoscopic retrograde appendicitis therapy(ERAT)with laparoscopic appendectomy(LA)for acute uncomplicated appendicitis using propensity score matching.Methods The clinical data of 441 patients with acute uncomplicated appendicitis admitted to the Third People's Hospital of Yunnan Province from March 2020 to April 2023 were collected.The cases were classified based on the differences in surgical method and divided into the ERAT group(n = 30)and LA group(n = 411).The clinical efficacy of patients was compared between the two groups after reducing confounding bias by propensity score matching(PSM).Results After PSM,a total of 30 pairs of patients in the two groups were successfully matched,and the baseline data of the two groups met the requirements for comparability.At 24 hours after the operation,the ERAT group exhibited lower white blood cells,neutrophil counts,and C-reactive protein levels compared to the LA group,and these differences were statistically significant(P<0.05).There was no significant difference in the operation time and total effective rate between the ERAT group and the LA group(P>0.05).However,the ERAT group had lower intraoperative blood loss and shorter pain relief time compared to the LA group,and these differences were statistically significant(P<0.05).Conclusion Abdominal ultrasound-guided endoscopic retrograde appendicitis treatment is an effective,safe,and feasible technique with good prospects for the treatment of acute uncomplicated appendicitis.

Objective:To explore the relationship between risk perception and health promoting lifestyle profile in population with cardiovascular disease (CVD), and construct a prediction model for clinical screening and targeted intervention.Methods:A cross-sectional survey method was used to select 272 people at moderate and high risk of CVD from the Second Affiliated Hospital of Zhejiang University School of Medicine from March to August 2022. The general information questionnaire, Chinese version of Attitude and Beliefs about Cardiovascular Disease Knowledge and Risk Questionnaire (ABCD-C), and Health Promoting Lifestyle Profile-II (HPLP Ⅱ) were used. Based on multiple regression analysis, a nomogram model for health promoting lifestyle in high-risk CVD population was constructed.Results:Among 272 participants, male 150 cases, female 122 cases, aged (60.58 ± 10.64) years old. The total ABCD-C score was (56.57 ± 5.69), and the total HPLP Ⅱ score was (111.92 ± 12.47). ABCD-C score was significantly positively correlated with HPLP Ⅱ score ( r=0.556, P<0.01). The median of HPLP Ⅱ total score (111 points) was used as the cut-off point for low level of health-promoting lifestyle (≤111 points) and high level of health-promoting lifestyle (>111 points), and used it as the dependent variable, smoking ( OR=0.215, 95% CI 0.104-0.446) was a barrier factor for participants to adopt healthy lifestyle; being married ( OR=14.237, 95% CI 1.963-103.238), having a family average monthly income higher than 5 000 yuan ( OR=4.101, 95% CI 1.369-12.288), higher score of CVD prevention knowledge ( OR=1.660, 95% CI 1.373-2.007), perceived benefits and intention to change physical activity ( OR=1.445, 95% CI 1.255-1.663), perceived benefits and intention to change healthy diet ( OR=1.322, 95% CI 1.058-1.654) were promoting factors. Conclusions:The health-promoting lifestyle of populations at risk for CVD is above-average, influenced by factors such as smoking, marital and economic status, risk attitudes, and beliefs. Utilizing the nomogram model for early screening and targeted risk communication among key populations may contribute to improving their health behavior.