目的 调查消化系统恶性肿瘤患者营养风险、营养知识-态度-行为（知信行）水平的现状，探究各因素是否对患者的营养风险、营养知信行水平具有影响，并分析两者之间的相关性。方法 选取中山大学附属第八医院（深圳福田）2024年2月—10月的244例消化系统恶性肿瘤患者为研究对象，采用一般资料调查表、营养风险筛查NRS2002量表以及消化系统肿瘤患者营养知信行问卷进行调查，数据收集后进行统计分析，从而研究消化系统恶性肿瘤患者营养筛查风险与营养知信行水平的现状、影响因素及两者间的相关性。结果 69.3%的消化系统恶性肿瘤患者存在营养风险，营养风险评分为（2.72±1.42）分。消化系统恶性肿瘤患者营养知识水平得分为（12.30±5.26）分、营养态度水平得分为（14.80±2.68）分、营养行为水平得分为（22.82±4.55）分、营养知信行水平总分为（49.96±9.50）分。家庭经济收入是患者营养风险水平的核心影响因素（P＜0.05），学历水平是患者营养知信行水平的核心影响因素（P＜0.05）。消化系统恶性肿瘤患者营养风险水平与营养知信行的总体水平呈负相关（r=-0.143，P＜0.05）。结论 消化系统恶性肿瘤患者的营养知信行水平总体处于中等水平，但普遍存在营养风险较高的情况。在患者治疗期间实施个性化营养健康宣教至关重要，这将有助于提升患者的营养知识水平，从而整体性改善其营养知信行素养并降低其营养风险，但在进行营养宣教和制定个性化营养方案时应充分考虑患者的家庭经济收入及学历水平。

    Objective To explore the nutritional risk and nutritional knowledge-attitude-behavior status of patients with digestive system malignant tumors，to analyze the influencing factors of nutritional risk，nutritional knowledge-attitude-behavior，and explore the correlation between them．Methods From February 2024 to October 2024，244 patients with digestive system malignant tumors at the Eighth Affiliated Hospital of Sun Yat-sen University were selected as the research subjects．A general information questionnaire，Nutritional Risk Screening 2002，and digestive system tumor patient nutrition knowledge-attitude-behavior questionnaire were used to study the influencing factors and correlations between the nutritional screening risk and nutritional knowledge-attitude-behavior in patients with digestive system malignant tumors．Results There were 69.3% of the patients with digestive system malignant tumors had nutritional risk score ≥3，and the overall score was（2.72±1.42）．The scores of nutritional knowledge，attitude，behavior and total score of digestive system malignant tumors patients were（12.30±5.26），（14.80±2.68），（22.82±4.55）and（49.96±9.50），respectively．Family economic income was the core influencing factors of nutritional risk in patients with digestive system malignant tumors，while educational level was the core influencing factor of nutritional knowledge-attitude-behavior in patients with digestive system malignant tumors．The nutritional risk level of patients with malignant tumors of the digestive system was significantly negatively correlated with the overall level of nutritional knowledge-attitude-behavior．Conclusions The nutritional knowledge-attitude-behavior level of patients with malignant tumors of the digestive system is generally at a medium level，but there is a widespread situation of relatively high nutritional risk．It is extremely important and necessary to conduct personalized nutrition knowledge education for patients during their treatment period，which will help enhance patients’ nutritional knowledge level，thereby comprehensively improving their nutritional knowledge-attitude-behavior literacy and reducing their nutritional risks．However，when conducting nutrition education and formulating personalized nutrition plans，the patient’s family economic income，medical payment methods and educational level should be fully considered．

长链非编码RNA（lncRNA）是一类长度大于200个核苷酸转录本,通过调控DNA、RNA及蛋白质的表达和功能,参与肿瘤发生、发展并发挥重要作用的RNA,近年来lncRNA成为恶性肿瘤早期诊断和预后标志物研究新的关注方向。Linc-UBC1作为一种新发现的lncRNA,在多种恶性肿瘤如肺癌、胃癌、结直肠癌、宫颈癌、卵巢癌、食管鳞癌等中异常高表达,可通过作为竞争性RNA（ceRNA）、参与信号通路等促进肿瘤细胞的增殖、迁移、侵袭、细胞周期进展、细胞凋亡和上皮间充质转化（EMT）等过程;高表达的linc-UBC1能够增加恶性肿瘤的耐药性,其表达水平与肿瘤分期、淋巴结转移和原发肿瘤远处转移呈正相关;linc-UBC1有望成为许多恶性肿瘤的新型的生物标志物、预后预测因子和治疗靶点,但其具体的调控机制仍处于研究的早期阶段,有待进一步深入研究。文章就目前linc-UBC1在恶性肿瘤发生和发展中的作用研究进展进行综述。

Long non-coding RNA（lncRNA）is a class of transcripts with a length of more than 200 nucleotides．It is involved in the occurrence and development of tumors and plays an important role by regulating the expression and function of DNA,RNA and protein．In recent years,lncRNA has become a new research direction for early diagnosis and prognosis of malignant tumors．As a newly discovered lncRNA,linc-UBC1 is abnormally highly expressed in a variety of malignant tumors such as lung cancer,gastric cancer,colorectal cancer,cervical cancer,ovarian cancer,and esophageal squamous cell carcinoma．It can promote the proliferation,migration,invasion,cell cycle progression,cell apoptosis and EMT of tumor cells by acting as a competing endogenous RNA（ceRNA）and participating in signaling pathways．High expression of linc-UBC1 can increase the drug resistance of malignant tumors,and its expression level is positively correlated with tumor stage,lymph node metastasis and distant metastasis of primary tumors．linc-UBC1 is expected to become a new biomarker,prognostic predictor and therapeutic target for many malignant tumors,while its specific regulatory mechanism is still in the early stage of research and needs further in-depth study．This article reviews the current research progress of linc-UBC1 in the occurrence and development of malignant tumors．

嵌合基因是指由两个或多个原本不连续的基因片段重组而成的新基因,它们可以通过基因组重排、转录诱导等机制产生。嵌合基因在正常生理和发育过程中具有重要的功能和调控作用。嵌合基因可以改变原有基因的表达水平、编码蛋白质的结构和功能、信号通路的激活和抑制等,从而促进肿瘤细胞的增殖、侵袭、转移和耐药性。近年来,随着高通量测序技术的发展和应用,越来越多的嵌合基因被发现和鉴定,它们在不同类型的肿瘤中具有不同的表达模式和功能作用,为肿瘤的分子诊断、预后评估和靶向治疗提供了新的机会和挑战。本文旨在对嵌合基因产生的机制、检测方法和在肿瘤中的功能和应用等方面进行综述,为进一步认识嵌合基因在肿瘤进展中的功能机制及其精准化治疗提供参考。

Chimeric genes refer to novel genes formed by the recombination of two or more originally non-contiguous gene fragments through mechanisms like genomic rearrangement and transcriptional induction．They play important roles in physiological and developmental regulation．Chimeric genes can alter the expression,structure and function of original genes,modulate signaling pathway activation and inhibition,and thereby promote tumor cell proliferation,invasion,metastasis and drug resistance．In recent years,with the development and application of high-throughput sequencing technologies,increasing numbers of chimeric genes have been discovered and identified．They demonstrate different expression patterns and functional roles in various tumor types,providing new opportunities and challenges for molecular diagnosis,prognostic assessment and targeted therapy of cancers．This review summarizes the mechanisms of chimeric gene formation,detection methods and their functions and applications in tumors,to provide insights into the functional mechanisms of chimeric genes in tumor progression and their implications for precision treatment．

目的 探讨抗肿瘤联合营养支持治疗对老年晚期恶性肿瘤癌因性疲倦及厌食行为的影响。方法 选取2015年4月—2017年4月晚期恶性肿瘤老年患者160例,随机分为抗肿瘤治疗组(对照组)和抗肿瘤联合营养支持治疗组(观察组),各80例,对比分析两组治疗前、后癌因性疲倦及厌食行为评分情况。结果 治疗前,两组厌食行为、癌因性疲倦评分比较无差异(P>0.05);治疗后,观察组厌食行为及癌因性疲倦评分均低于对照组(P<0.05)。结论 营养支持治疗在老年晚期恶性肿瘤患者厌食行为及癌因性疲倦方面的改善效果显著,一定程度上提高患者生活质量,减轻痛苦,具有较高临床应用价值。

目的 探究彩色多普勒超声在乳腺良恶性肿瘤鉴别诊断中的应用价值。方法 抽取2012年2月—2016年6月我院门诊、社区普查中的病例中选取符合研究标准的298例乳腺肿瘤疾病患者,所有患者均行彩色多普勒超声检查。通过SPSS 19.0软件对数据进行分析,以病理检查结果作金标准,分析彩色多普勒超声诊断结果,对比良性肿瘤与恶性肿瘤血流分级情况及良性肿瘤与恶性肿瘤收缩期流速峰值(PSV)及(阻力指数)RI水平。结果 经病理检查证实,298例患者中恶性肿瘤32例,良性肿瘤266例;超声诊断恶性肿瘤42例,良性肿瘤256例;超声诊断灵敏度为93.75%(30/32)、特异度为95.49%(254/266)、准确度为95.30%(284/298)。良性肿瘤血流信号检出率为55.26%(147/266),恶性肿瘤血流信号检出率为96.87%(31/32),其中良性肿瘤以0～I级血流为主,为83.83%(223/266),恶性肿瘤以I～III级血流为主,为96.87%(31/32),各分级情况对比,差异有统计学意义(P＜0.05)。恶性肿瘤PSV(20.11±6.76)cm/s、RI(0.65±0.07)均明显高于良性肿瘤[(15.30±9.21)cm/s、(0.56±0.09)],差异有统计学意义(P＜0.05)。结论 彩色多普勒超声在乳腺良恶性肿瘤临床鉴别诊断中具有较高准确度、特异度及灵敏度,可结合血流分级和RI水平提高乳腺良恶性肿瘤鉴别准确度。

目的 探讨年轻恶性肿瘤化疗女性的发病情况及保留生育功能和卵巢功能的意义。方法 回顾性分析和总结在我院行化疗的17～40岁年轻恶性肿瘤女性患者的年龄、肿瘤类别、构成等临床资料。结果 5年间在我院化疗的1261例女性恶性肿瘤患者中,年龄15～40岁者共786例(占62.3％),其中乳腺癌355例、大肠癌89例、白血病80例、宫颈癌67例、卵巢癌46例、恶性淋巴瘤39例,胃癌38例,肺癌30例,肝癌18例。15～25岁年龄段的女性恶性肿瘤化疗以白血病和卵巢癌为主。随年龄增长,大部分女性恶性肿瘤化疗的发生率增高。结论 15～40岁年轻恶性肿瘤化疗女性中乳腺癌占首位,其次为大肠癌、白血病和宫颈癌。保留年轻患者卵巢功能和生育功能的保守治疗具有重要意义。

Objective To analyze the clinical characteristics of malignant tumor in young women receiving chemotherapy aged from 15 to 40 and investigate the role of conservative treatment. Methods The clinical data of female aged from15 to 40 years old who were received chemotherapy in our hospital between 2010 and 2014 were retrospectively analyzed. Results 786 cases were identified from 1261 cases of malignant tumor receiving chemotherapy. Including 355 cases of breast cancer,89 cases of colorectal cancer,80 cases of leukemia,67 cases of cervical carcinoma,46 cases of ovarian cancer,39 cases of lymphoma,38 cases of gastric cancer,30 cases of lung cancer and 18 cases of liver cancer. Leukemia and ovarian cancer is the most common malignant tumor in young female between 15 to 25 years old. The cases of malignant tumor receiving chemotherapy increased with increasing age. Conclusion Breast cancer is the most common malignant tumor in young female receiving chemotherapy, followed by colorectal cancer, leukemia, and cervical carcinoma. It is very important to conserve young women's ovary function and fertility function.

      长链非编码RNA（lncRNA）是一类长度大于200个核苷酸转录本，通过调控DNA、RNA及蛋白质的表达和功能，参与肿瘤发生、发展并发挥重要作用的RNA，近年来lncRNA成为恶性肿瘤早期诊断和预后标志物研究新的关注方向。Linc-UBC1作为一种新发现的lncRNA，在多种恶性肿瘤如肺癌、胃癌、结直肠癌、宫颈癌、卵巢癌、食管鳞癌等中异常高表达，可通过作为竞争性RNA（ceRNA）、参与信号通路等促进肿瘤细胞的增殖、迁移、侵袭、细胞周期进展、细胞凋亡和上皮间充质转化（EMT）等过程；高表达的linc-UBC1能够增加恶性肿瘤的耐药性，其表达水平与肿瘤分期、淋巴结转移和原发肿瘤远处转移呈正相关；linc-UBC1有望成为许多恶性肿瘤的新型的生物标志物、预后预测因子和治疗靶点，但其具体的调控机制仍处于研究的早期阶段，有待进一步深入研究。文章就目前linc-UBC1在恶性肿瘤发生和发展中的作用研究进展进行综述。

       Long non-coding RNA（lncRNA）is a class of transcripts with a length of more than 200 nucleotides．It is 

involved in the occurrence and development of tumors and plays an important role by regulating the expression and function of DNA，RNA and protein．In recent years，lncRNA has become a new research direction for early diagnosis and prognosis of malignant tumors．As a newly discovered lncRNA，linc-UBC1 is abnormally highly expressed in a variety of malignant tumors such as lung cancer，gastric cancer，colorectal cancer，cervical cancer，ovarian cancer，and esophageal squamous cell carcinoma．It can  promote the proliferation，migration，invasion，cell cycle progression，cell apoptosis and EMT of tumor cells by acting as a competing endogenous RNA（ceRNA）and participating in signaling pathways．High expression of linc-UBC1 can increase the drug resistance of malignant tumors，and its expression level is positively correlated with tumor stage，lymph node metastasis and distant metastasis of primary tumors．linc-UBC1 is expected to become a new biomarker，prognostic predictor and therapeutic target for many malignant tumors，while its specific regulatory mechanism is still in the early stage of research and needs further in-depth study．This article reviews the current research progress of linc-UBC1 in the occurrence and development of malignant tumors．