Oral squamous cell carcinoma (OSCC) is a common head and neck malignancy. Approximately 50% to 60% of patients with OSCC are diagnosed at a locally advanced stage (clinical staging III-IVa). Even with comprehensive and sequential treatment primarily based on surgery, the 5-year overall survival rate remains below 50%, and patients often suffer from postoperative functional impairments such as difficulties with speaking and swallowing. Programmed death receptor-1 (PD-1) inhibitors are increasingly used in the neoadjuvant treatment of locally advanced OSCC and have shown encouraging efficacy. However, clinical practice still faces key challenges, including the definition of indications, optimization of combination regimens, and standards for efficacy evaluation. Based on the latest research advances worldwide and the clinical experience of the expert group, this expert consensus systematically evaluates the application of PD-1 inhibitors in the neoadjuvant treatment of locally advanced OSCC, covering combination strategies, treatment cycles and surgical timing, efficacy assessment, use of biomarkers, management of special populations and immune related adverse events, principles for immunotherapy rechallenge, and function preservation strategies. After multiple rounds of panel discussion and through anonymous voting using the Delphi method, the following consensus statements have been formulated: 1) Neoadjuvant therapy with PD-1 inhibitors can be used preoperatively in patients with locally advanced OSCC. The preferred regimen is a PD-1 inhibitor combined with platinum based chemotherapy, administered for 2-3 cycles. 2) During the efficacy evaluation of neoadjuvant therapy, radiographic assessment should follow the dual criteria of Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1 and immune RECIST (iRECIST). After surgery, systematic pathological evaluation of both the primary lesion and regional lymph nodes is required. For combination chemotherapy regimens, PD-L1 expression and combined positive score need not be used as mandatory inclusion or exclusion criteria. 3) For special populations such as the elderly (≥ 70 years), individuals with stable HIV viral load, and carriers of chronic HBV/HCV, PD-1 inhibitors may be used cautiously under the guidance of a multidisciplinary team (MDT), with close monitoring for adverse events. 4) For patients with a poor response to neoadjuvant therapy, continuation of the original treatment regimen is not recommended; the subsequent treatment plan should be adjusted promptly after MDT assessment. Organ transplant recipients and patients with active autoimmune diseases are not recommended to receive neoadjuvant PD-1 inhibitor therapy due to the high risk of immune related activation. Rechallenge is generally not advised for patients who have experienced high risk immune related adverse events such as immune mediated myocarditis, neurotoxicity, or pneumonitis. 5) For patients with a good pathological response, individualized de escalation surgery and function preservation strategies can be explored. This consensus aims to promote the standardized, safe, and precise application of neoadjuvant PD-1 inhibitor strategies in the management of locally advanced OSCC patients.

Diabetic encephalopathy(DE)is a complication of the central nervous system induced by diabetes,characterized by insidious onset and complex pathological mechanisms.Recent research has revealed that the pathological mechanisms of DE are closely associated with the imbalance of intercellular communica-tion across multiple organs.Exosomes,serving as vital media-tors of intercellular communication,are involved in the patholog-ical progression of DE and hold promise as diagnostic biomarkers and therapeutic targets for DE.Traditional Chinese medicine(TCM)can improve communication between brain cells and be-tween peripheral and brain tissues by regulating exosomes and their contents,thereby preventing and treating DE.Meanwhile,exosomes,as targeted delivery carriers of active molecules,can carry TCM monomers more easily across the blood-brain barrier to prevent and treat DE.In light of this,this review summarizes the regulatory role of exosomes in the pathological progression of DE and explores the enormous potential of TCM in the preven-tion and treatment of DE by regulating exosomes and using exo-somes as traditional Chinese medicine carriers,aiming to pro-vide new evidence for the prevention and treatment of DE with TCM.

Aim To construct a model of vascular endothelial cell(EC)-specific gene knockout mice of tumor necrosis factor receptor-associated factor 2(Traf2)by using Cre-loxP technolo-gy,thus to provide basis for the research of vascular dysfunction-related diseases related to the regulation of vascular EC activity through TRAF2.Methods The Cre-loxP system was used to construct a mouse model with EC-specific knockout of Traf2 gene(Traf2flox/flox Tek-iCre+).The mouse genotype was identi-fied through PCR and gel electrophoresis.Primary vascular ECs were isolated from the mice using flow cytometry.The knockout efficiency of Traf2 in vascular ECs was validated by Western blot and immunofluorescence.The pathological changes in blood ves-sels and major organs of the mice were examined using hematox-ylin-eosin(HE)staining.The tube-forming ability of primary vascular EC was assessed using Matrigel tube formation.Results The knockout mice met the required genetic criteria.Flow cy-tometry results demonstrated the successful isolation of primary vascular EC,and TRAF2 expression in vascular EC of knockout mice was significantly reduced(P＜0.01).Histological results showed that TRAF2 expression in the vessel of knockout mice decreased,and the morphology had no significant changes in their blood vessels and major organs.The Matrigel tube forma-tion demonstrated that the tube-forming ability of primary vascu-lar EC from knockout mice was reduced.Conclusion Traf2 specific knockout mouse model in vascular ECs is successfully constructed,providing a reliable animal model for research into the regulatory mechanisms of TRAF2 on vascular ECs in vascular dysfunction related diseases.

With the rapid development of generative artificial intelligence(GAI)technologies,their widespread application in academic research and writing is continuously expanding the boundaries of sci-entific inquiry.However,this trend has also raised a series of ethical and regulatory challenges,inclu-ding issues related to authorship,content authenticity,citation accuracy,and accountability.In light of the growing involvement of AI in generating academic content,establishing an open,controllable,and trustworthy ethical governance framework has become a key task for safeguarding research integrity and maintaining trust within the academic community.This expert consensus outlines ethical requirements across key stages of AI-assisted academic writing-including topic selection,data management,citation practices,and authorship attribution.It aims to clarify the boundaries and ethical obligations surrounding AI use in academic writing,ensuring that technological tools enhance efficiency without compromising in-tegrity.The goal is to provide guidance and institutional support for building a responsible and sustainable research ecosystem.

With the rapid development of generative artificial intelligence(GAI)technologies,their widespread application in academic research and writing is continuously expanding the boundaries of sci-entific inquiry.However,this trend has also raised a series of ethical and regulatory challenges,inclu-ding issues related to authorship,content authenticity,citation accuracy,and accountability.In light of the growing involvement of AI in generating academic content,establishing an open,controllable,and trustworthy ethical governance framework has become a key task for safeguarding research integrity and maintaining trust within the academic community.This expert consensus outlines ethical requirements across key stages of AI-assisted academic writing-including topic selection,data management,citation practices,and authorship attribution.It aims to clarify the boundaries and ethical obligations surrounding AI use in academic writing,ensuring that technological tools enhance efficiency without compromising in-tegrity.The goal is to provide guidance and institutional support for building a responsible and sustainable research ecosystem.

Diabetic encephalopathy(DE)is a complication of the central nervous system induced by diabetes,characterized by insidious onset and complex pathological mechanisms.Recent research has revealed that the pathological mechanisms of DE are closely associated with the imbalance of intercellular communica-tion across multiple organs.Exosomes,serving as vital media-tors of intercellular communication,are involved in the patholog-ical progression of DE and hold promise as diagnostic biomarkers and therapeutic targets for DE.Traditional Chinese medicine(TCM)can improve communication between brain cells and be-tween peripheral and brain tissues by regulating exosomes and their contents,thereby preventing and treating DE.Meanwhile,exosomes,as targeted delivery carriers of active molecules,can carry TCM monomers more easily across the blood-brain barrier to prevent and treat DE.In light of this,this review summarizes the regulatory role of exosomes in the pathological progression of DE and explores the enormous potential of TCM in the preven-tion and treatment of DE by regulating exosomes and using exo-somes as traditional Chinese medicine carriers,aiming to pro-vide new evidence for the prevention and treatment of DE with TCM.

Aim To construct a model of vascular endothelial cell(EC)-specific gene knockout mice of tumor necrosis factor receptor-associated factor 2(Traf2)by using Cre-loxP technolo-gy,thus to provide basis for the research of vascular dysfunction-related diseases related to the regulation of vascular EC activity through TRAF2.Methods The Cre-loxP system was used to construct a mouse model with EC-specific knockout of Traf2 gene(Traf2flox/flox Tek-iCre+).The mouse genotype was identi-fied through PCR and gel electrophoresis.Primary vascular ECs were isolated from the mice using flow cytometry.The knockout efficiency of Traf2 in vascular ECs was validated by Western blot and immunofluorescence.The pathological changes in blood ves-sels and major organs of the mice were examined using hematox-ylin-eosin(HE)staining.The tube-forming ability of primary vascular EC was assessed using Matrigel tube formation.Results The knockout mice met the required genetic criteria.Flow cy-tometry results demonstrated the successful isolation of primary vascular EC,and TRAF2 expression in vascular EC of knockout mice was significantly reduced(P＜0.01).Histological results showed that TRAF2 expression in the vessel of knockout mice decreased,and the morphology had no significant changes in their blood vessels and major organs.The Matrigel tube forma-tion demonstrated that the tube-forming ability of primary vascu-lar EC from knockout mice was reduced.Conclusion Traf2 specific knockout mouse model in vascular ECs is successfully constructed,providing a reliable animal model for research into the regulatory mechanisms of TRAF2 on vascular ECs in vascular dysfunction related diseases.

Body weight abnormalities, including overweight, obesity, and underweight, have become a dual public health challenge in Chinese adults: overweight and obesity lead to a variety of chronic complications, while underweight increases the risks of malnutrition, sarcopenia, and organ dysfunction. To systematically address these issues, multidisciplinary experts in endocrinology, sports science, nutrition, and psychiatry from various regions have held multiple weight management seminars. Based on the latest epidemiological data and clinical evidence, they expanded the guideline to include assessment and intervention strategies for underweight, in addition to the core content of obesity management. This guideline outlines the etiological mechanisms, evaluation methods, and multidimensional management strategies for overweight and obesity, covering key areas such as diagnosis and assessment, medical nutrition therapy, exercise prescription, pharmacological intervention, and psychological support. It is intended to provide a scientific and standardized approach to weight management across the adult population, aiming to curb the rising prevalence of obesity, mitigate complications associated with abnormal body weight, and improve nutritional status and overall quality of life.

[Purpose]To analyze the trends of cancer incidence and mortality in cancer registration areas of Guizhou Province in 2019 and change trend from 2015 to 2019.[Methods]The incidence and mortality data of malignant tumors in 54 cancer registries in Guizhou Province that met the quality standards in 2019 were included.The incidence and mortality rate,age-standardized in-cidence/mortality rates by Chinese standard population(ASIRC,ASMRC)and world standard pop-ulation(ASIRW,ASMRW)as well as cumulative rates(0～74 years old)were calculated for urban and rural areas,as well as for men and women.Joinpoint software was used to calculate the an-nual percentage change(APC)and 95％confidence interval for trend anaylsis.[Results]In 2019,the crude incidence of cancers in Guizhou cancer registration areas was 246.72/105,ASIRC was 189.45/105,ASMRC was 181.85/105 and the cumulative incidence rate(0～74 years old)was 19.43％.Among the rankings of cancer incidence,lung cancer ranked the first,followed by liver cancer,female breast cancer,cervical cancer and colorectal cancer.In the same year,the crude mortality rate of cancers was 158.57/105,the ASMRC was 114.08/105,ASMRW was 111.94/105,with the cumulative mortality rate(0～74 years old)of 11.99％.Among the rankings of cancer mor-tality,lung cancer ranked the first,followed by liver cancer,colorectal cancer,stomach cancer and cervical cancer.In 2019,the incidence and mortality of cancers in the cancer registration areas of Guizhou Province showed an increasing trend with age.From 2015 to 2019,the ASIRC in Guizhou showed a decreased trend(APC=-1.13％)and the ASMRC showed an increasing trend(APC=2.48％),but they were not statistically significant(both P＞0.05).[Conclusion]From 2015 to 2019,the mortality rate of malignant tumors in the cancer registered areas of Guizhou Province increased and was higher than the national average level,and the disease burden was heavy.Lung cancer,malignant tumors of the digestive system,female breast cancer,and cervical cancer were malignant tumors with high incidence and mortality rates,and should be given priority for preven-tion and control.

To formulate an expert consensus on the principles of preoperative hair removal and provide scientific guidance for standardized removal of hair before surgical procedures so as to reduce the incidence of surgical site infections.METHODS Led by the Hospital Management Institute of National Health Commission of the People's Republic of China,this consensus was reached with the joint efforts from the expects of relevant fields such as surgeries,interventional therapies,nursing,and infection prevention and control.The consensus facilitates the classification and evaluation of literatures by following the evidence grade formulated by Oxford Evidence-based Medicine Center and focuses on the association of preoperative hair removal with surgical site infection,it reaches the evidence grade of expert consensus and recommendation intensity by integrating with discussions on meetings and clinical experience of the expects from relevant fields.RESULTS A total of 6 items of consensus were reached by summarizing the latest evidence on the aspects including the indications for preoperative hair removal,tools,range,timing and places.CONCLUSION The consensus,to some extent,make supplements to and complete the exiting regulations and standards.It provides guidance for the medical institutions to carry out the preoperative hair removal.