1.Carthamus tinctorius L.extract ameliorates alcoholic liver disease by modulating PI3K/Akt/FoxO signaling pathway
Wen-Xuan WANG ; Xiang-Lei FU ; Man QI ; Fu-Rong FAN ; Fu-Rong ZHU ; Yuan-Chuang WANG ; Kai-Yue ZHANG ; Min LIU ; Sheng-Hui CHU
Chinese Pharmacological Bulletin 2024;40(6):1137-1145
Aim To investigate the effects of Cartham-us tinctorius L.extract(CTLE)on oxidative stress,lipid metabolism,and apoptosis levels of mice with al-cohol-induced liver injury and its mechanism of action.Methods The mouse model of alcohol-associated liver disease was established by chronic alcohol feeding and acute alcohol gavage.Mice were randomly divided into four groups.During the modeling period,the state changes of mice were observed every day,and their weight was recorded.At the end of modeling,blood and liver tissues were collected from each group of mice.The blood of mice was analyzed biochemically,and HE staining and Oil Red O staining were used to evaluate further the degree of pathological damage in the liver of mice.Quantitative real-time PCR(qPCR)and Western blot were applied to detect the mRNA and protein expression levels of p-PI3K,PI3K,p-Akt,Akt,p-mTOR,mTOR,p-FoxO1,FoxO1,p-FoxO3a,FoxO3a,p-FoxO4,FoxO4,BCL and BAX factors.Results Compared to the model group,the CTLE administration group showed improved hepatic patho-logical injury and reduced lipid deposition.The bio-chemical indexes in serum and liver,such as ALT,AST,TG,TC,and MDA levels were reduced,while GSH and SOD levels increased.Regulating the PI3K/Akt/FoxO pathway resulted in increased production of SOD,which reduced damage and apoptosis caused by reactive oxygen species(ROS).Conclusions CTLE can exert anti-oxidative stress and anti-apoptotic effects through the PI3K/Akt/FoxO pathway and attenuates alcoholic liver injury in mice,providing new ideas for the treatment of alcoholic liver disease and the develop-ment of related drugs.
2.Mechanism of action and experimental validation study of liver cancer treatment by Zheng Gan Decoction using bioinformatics
Tian-Li SONG ; Yi-Min WANG ; Xu LIU ; Sheng HUANG ; Hai-Xia LI
Chinese Pharmacological Bulletin 2024;40(7):1383-1391
Aim To invepredict the mechanism of ac-tion and targets of the traditional Chinese medicine compound Zheng Gan Decoction against hepatocellular carcinoma based on bioinformatics,and to experimen-tally verify the mechanism of anticancer action of Zheng Gan Decoction against DEN-induced hepatocellular carcinoma in a rat model.Methods The compounds of CZLF were collected from TCMSP and HERB Herbal Histology Database,and the potential targets of CZLF were predicted from Uniprot Protein Database,and the disease targets of hepatocellular carcinoma were searched with the help of OMIM,TTD,and Gene Cards databases,and then Venny analysis was per-formed on the targets of the disease-drugs,and then the protein-drug interactions(PI)of CZLF were mapped by String database,which was used for the study.After that,we used String database to draw pro-tein-protein interaction(PPI)network,R 4.1.3 soft-ware and Metascape database to enrich gene ontology(GO)and analyze KEGG signaling pathway for the core intersected targets,and finally,we used Cyto-scape 3.8.2 software for visualization to construct"compound-pathway-target-disease".Lastly,Cytoscape 3.8.2 software was used to visualize and construct a"compound-pathway-target-disease"network diagram,which was finally verified by Western blot experiment.Results Bioinformatics results showed that there were 171 common targets between Zheng Gan Decoction and diseases,and Zheng Gan Decoction might exert its an-ticancer effect through the main active ingredients such as lignans,quercetin,β-glutosterol,ivy saponin,etc.,as well as through the core protein targets such as CASP3,BCL2,AKT1,IL6,etc.,and the modula-tion of the Hippo signaling pathway and PI3K-Akt sig-naling pathway.The results of animal experiments showed that the expression content of apoptosis-related proteins caspase-3,BCL-2 and Bax was detected by Western blot,and the expression of Bax and caspase-3 proteins was up-regulated and the expression of Bcl-2 protein was down-regulated in the treatment group of Zheng Gan Decoction.Conclusions This study sug-gests that Zheng Gan Decoction may inhibit the growth of hepatocellular carcinoma cells and promote the apop-tosis of hepatocellular carcinoma cells by regulating the apoptosis-related proteins of caspase-3,Bcl-2,and Bax,so as to achieve the effect of anti-hepatocellular carcinoma.
3.Observation of the effect of single dose intravenous infusion of tranexamic acid on white blood cell,erythrocyte sedi-mentation rate and C-reactive protein after double segmental posterior lumbar interbody fusion
Shen-Shen HAO ; Xiao-Long AN ; Sheng-Li DONG ; Shuai LIU ; Hong-Ke LI ; Peng-Cheng WANG ; Shao-Min ZHANG ; Kai KANG
China Journal of Orthopaedics and Traumatology 2024;37(10):978-984
Objective To observe the safety and effectiveness of single dose intravenous infusion of tranexamic acid(TX-A)in dual level posterior lumbar interbody fusion(PLIF),and to explore the changes and trends in perioperative white blood cell(WBC),erythrocyte sedimentation rate(ESR),and C-reactive protein(CRP).Methods Between October 2020 and September 2022,46 patients with lumbar degenerative disease were treated with dual level PLIF,including 18 males and 28 females,with an average age of(60.24±10.68)years old,from 34 to 80 years old.They were divided into observation group and control group according to different treatment methods.There were 28 patients in the observation group,including 12 males and 16 females,with an average age of(61.04±9.03)years old.There were 3 cases with lumbar disc herniation(LDH),lumbar spinal stenosis(LSS)18 cases,lumbar spondylolisthesis(LS)7 cases.TXA(1 g/100 ml)was administered intravenously 15 min before skin incision after general anesthesia.The control group consisted of 18 patients,including 6 males and 12 females,with an average age of(59.00±13.04)years old.There were 5 cases with LDH,LSS 9 cases,LS 4 cases,and TXA was not used.The operation time,intraoperative bleeding volume,postoperative drainage volume,postoperative deep vein thrombosis(DVT),postoperative hospital stay,postoperative activated partial thromboplastin time(APTT),prothrombin time(PT),thrombin time(TT),fibrinogen(FIB),platelet(PLT),red blood cell(RBC),hemoglobin(HB),hematocrit(HCT),the first day,the fourth day,the seventh day and the last tested after operation WBC,ESR and CRP were recorded.Results The postop-erative wounds of the patients healed well and there was no DVT.46 patients were followed up from 3 to 6 months.The intraop-erative blood loss was 400.0(300.0,500.0)ml and the postoperative drainage was 260.0(220.0,450.0)ml in the observation group,which were lower than the control group[600.0(400.0,1000.0)ml,395.0(300.0,450.0)ml],P<0.05.There was no significant difference between the two groups in operation time,postoperative hospital stay,postoperative APTT,PT,TT,FIB,PLT,RBC,HB,HCT,and postoperative WBC,ESR and CRP at different times(P>0.05).Conclusion Single dose intravenous infusion of TXA can reduce the blood loss of bi-segmental PLIF,and has no significant effect on WBC,ESR and CRP after op-eration.
4.Expression and Prognostic Significance of B-cell Development-Related Genes in Children with Acute B Lymphoblastic Leukemia
Sha YIN ; An-Sheng LIU ; Ye FAN ; Rui XIA ; Yan-Min ZHANG
Journal of Experimental Hematology 2024;32(6):1665-1675
Objective:To analyze the expression of B-cell development-related genes in acute B lymphoblastic leukemia (B-ALL),and to explore the relationship between B-cell development-related genes and the prognosis of B-ALL patients.Methods:The GEO and TARGET databases were integrated to analyze the differential expression of B-cell development-related genes between the healthy persons and B-ALL patients and their differential expression in the B-ALL relapse and non-relapse groups.Cox single factor regression and Lasso regression were used to constructe a B-ALL specific prognosis model of B-cell development-related genes.The prognostic value of this model was analyzed by Cox multiple factor regression.The risk scores of different subtypes of B-ALL was analyzed.In the real world,the correlation between the prognostic model of B-cell development-related genes and clinical outcomes was verified through the transcriptome sequencing results of B-ALL patients.In addition,the correlation between this prognostic model and other B-ALL prognostic models was also analyzed.At last,Metascape was used to evaluate the pathway and function enrichment status related to the prognosis model.Results:There were 1097 genes specifically expressed in B-ALL and related to B cell development,27 of which were up-regulated in the B-ALL relapse group,and 37 genes were down-regulated in the B-ALL relapse group.14 genes were further selected to be included in the B-cell development-related prognosis model (CDC25B,CKAP4,DSTN,IGF2R,NDUFA4,ODC1,PAX5,SH3BP4,SLC27A5,APAF1,ARRB2,HHEX,IL13RA1,UVRAG)based on Cox single factor regression and Lasso regression.Risk scoring of patients with B-ALL based on the 14 genes prognosis model,the prognosis of 134 patients in the low-risk scoring group (score>0.11) was better than those in the patients with high-risk scores (score≤0.11 ).Multivariate analysis showed that the risk score of B-cell development-related genes was an independent prognostic factor.And the proportion of hyperdiploid positive children in the low-risk scoring group was significantly higher than that in the high-risk scoring group,while the proportion of TCF3/PBX1 positive children in the high-risk scoring group was significantly higher than that in the low-risk scoring group.At the same time,the real-world data showed that the prognosis of patients with B-ALL in the high-risk scoring group was worse than those of the patients with low-risk scores in Xi'an Children's Hospital.And the risk score of B-cell development-related genes in patients with B-ALL death was higher than that in patients with B-ALL non-death.In addition,there is a positive correlation between the risk score calculated by the metabolic-related gene prognostic scoring system and the risk score calculated by the B-cell developmental-related gene prognostic model.At last,differential gene enrichment analysis suggested that the prognosis risk was related to the process of embryonic development and differentiation to various systems,especially to the B cell receptor signaling pathway.Conclusion:The specific expression of B-cell development-related genes in B-ALL is related to the prognosis of B-ALL.The prognosis model composed of 14 genes is expected to be a new prognostic marker for children with B-ALL.
5.Focusing on the evaluation of resectability of bile ducts-Application of medical imaging technology and 3D recon-struction in preoperative planning for radical resection of hi-lar cholangiocarcinoma
Xiang-Min DING ; Dou-Sheng BAI ; Guo-Qing JIANG ; Sheng-Jie JIN ; Chi ZHANG ; Qian WANG ; Bao-Huan ZHOU ; Ao-Qing WANG ; Ren-Jie LIU
Chinese Journal of Current Advances in General Surgery 2024;27(10):789-793
Hepatohilar cholangiocarcinoma is a common malignant tumor of the biliary system,and radical surgery is one of the important treatment methods.Due to the narrow space at the hi-lum and the high rate of anatomical variation,radical surgery is challenging.By using medical imag-ing technology and 3D reconstruction,surgeons can accurately determine the stage and classifica-tion of hilar cholangiocarcinoma preoperatively.They can assess the tumor's resectability by Ac-cording to the bile duct separation limit points(U point,P point)and anticipate the impact of portal vein,bile duct,and arterial variations on the surgical plan,thereby improving the rate of radical re-section and reducing complication rates.
6.Clinical effects of Modified Mahuang Lianqiao Chixiaodou Decoction on patients with chronic eczema
Qing-Xing WANG ; Bu-Xin ZHANG ; Sheng-Dong XU ; Li WANG ; Jing LI ; Ai-Min LIU
Chinese Traditional Patent Medicine 2024;46(9):2943-2949
AIM To investigate the clinical effects of Modified Mahuang Lianqiao Chixiaodou Decoction on patients with chronic eczema.METHODS One hundred and ninety-five patients were randomly assigned into Chinese medicine group(65 cases)for 3-week administration of Modified Mahuang Lianqiao Chixiaodou Decoction,western medicine group(65 cases)for 3-week administration of Levocetirizine Hydrochloride,and combined group(65 cases)for 3-week administration of both Modified Mahuang Lianqiao Chixiaodou Decoction and Levocetirizine Hydrochloride.The changes in clinical effects,clinical indices(EASI score,DQOLS score,TCM syndrome score,PINS score),skin physiological function indicesssss(OCTS,TEWL,WCTC),inflammatory factors(EOT,EOS,NK-κB,CCR3),T lymphocyte subsets(Treg,Th1,Th17,Th22),p38MAPK signaling pathway indices(ERK1,ERK2,mMEK 1,MEK2),recurrence rate and incidence of adverse reactions were detected.RESULTS The combined group demonstrated higher total effective rate than the Chinese medicine group and the western medicine group(P<0.05),along with lower recurrence rate(P<0.05).After the treatment,the combined group displayed lower EASI score,TCM syndrome score,PINS,TEWL,inflammatory factors,Th1,Th17,Th22 and p38MAPK signaling pathway indices than the control group(P<0.05),along with higher DQOLS score,OCTS,WCTC,Treg(P<0.05).The Chinese medicine group exhibited lower incidence of adverse reactions than the other two groups(P<0.05).CONCLUSION For the patients with chronic eczema,Modified Mahuang Lianqiao Chixiaodou Decoction can safely and effectively alleviate skin lesion degree,enhance skin physiological functions,improve T lymphocyte subset,inflammatory factors levels,and regulate p38MAPK signaling pathway based on"Four-in-One"therapy,which exhibits synergistic effect when combined with Levocetirizine Hydrochloride.
7.Correlation study of transcranial sonography combined with serum biomarkers and cognitive status in patients with Parkinson′s disease
Hai WANG ; Yingchun ZHANG ; Changwei DING ; Caishan WANG ; Yujing SHENG ; Xiaofang CHEN ; Ying ZHANG ; Min YANG ; Pan MAO ; Yong YANG ; Ping FENG ; Chengjie MAO ; Jing CHEN ; Chunfeng LIU
Chinese Journal of Ultrasonography 2024;33(6):512-518
Objective:To explore the correlation between transcranial sonography (TCS) combined with serum homocysteine (Hcy), blood glucose, blood lipids, the cognitive status of Parkinson′s disease (PD) patients, and to analyze the clinical application value of these parameters in assessing the cognitive status of PD patients.Methods:A total of 152 PD patients admitted to the Second Affiliated Hospital of Soochow University from January 2020 to June 2023 were retrospectively collected as the PD group, and 101 healthy examinees matched for age and gender during the same period were selected as control group. Clinical data [age, gender, duration of illness, Montreal Cognitive Assessment (MoCA) score, Mini-Mental State Examination (MMSE) score, Unified Parkinson′s Disease Rating Scale Part Ⅲ (UPDRS-Ⅲ) score, Hoehn-Yahr (H-Y) stage, etc.], serum tests (Hcy, blood glucose, total cholesterol, triglycerides, low-density lipoprotein, high-density lipoprotein concentration), and TCS examination results (third ventricular width, midbrain area, peak systolic velocity of bilateral middle cerebral arteries, bilateral middle cerebral artery resistance index, bilateral substantia nigra hyperechoic area) were collected. The two groups were divided into pure PD group and PD group with elevated Hcy, pure control group and control group with elevated Hcy, based on an Hcy concentration threshold of ≥15 μmol/L. The differences in the above parameters among the four groups were compared. The correlation between Hcy and cognitive status (MoCA score, MMSE score) of PD patients and the above parameters were analyzed.Results:The MoCA score and MMSE score of the PD group with elevated Hcy were lower than those of the pure PD group, and the UPDRS-Ⅲ score and H-Y stage were higher than those of the pure PD group (all P<0.001). The order of Hcy concentration from high to low was PD group with elevated Hcy, pure Hcy elevation group, pure PD group, and pure control group. The differences in serum data and TCS data among the four groups were statistically significant (all P<0.001). Spearman correlation analysis showed: ①In the PD group, the concentration of Hcy was positively correlated with glucose concentration, H-Y stage, low-density lipoprotein concentration, right middle cerebral artery resistance index, UPDRS-Ⅲ score, total cholesterol concentration, triglyceride concentration, left middle cerebral artery resistance index, third ventricular width, and age ( rs=0.422, 0.350, 0.348, 0.334, 0.325, 0.300, 0.293, 0.283, 0.221, 0.164, all P<0.05); Hcy concentration was negatively correlated with midbrain area, MMSE score, MoCA score, peak systolic velocity of right middle cerebral artery, peak systolic velocity of left middle cerebral artery, and high-density lipoprotein concentration ( rs=-0.328, -0.282, -0.245, -0.229, -0.224, -0.192, all P<0.05). ②Clinical data, serum data, and TCS data of PD patients were all correlated with MoCA score and MMSE score, with midbrain area showing the largest positive correlation ( rs=0.524, 0.516; both P<0.05) and H-Y stage showing the largest negative correlation( rs=-0.490, -0.468; both P<0.05). Conclusions:PD patients with elevated Hcy have lower cognitive scores than pure PD patients. The correlation between Hcy concentration and blood glucose concentration is the highest in PD patients, followed by H-Y stage. The cognitive scores of PD patients are most correlated with midbrain area and unrelated to substantia nigra hyperechoic area. Lowering serum Hcy concentration in PD patients may be one of the ways to delay cognitive impairment.
8.Clinical trial of Morinda officinalis oligosaccharides in the continuation treatment of adults with mild and moderate depression
Shu-Zhe ZHOU ; Zu-Cheng HAN ; Xiu-Zhen WANG ; Yan-Qing CHEN ; Ya-Ling HU ; Xue-Qin YU ; Bin-Hong WANG ; Guo-Zhen FAN ; Hong SANG ; Ying HAI ; Zhi-Jie JIA ; Zhan-Min WANG ; Yan WEI ; Jian-Guo ZHU ; Xue-Qin SONG ; Zhi-Dong LIU ; Li KUANG ; Hong-Ming WANG ; Feng TIAN ; Yu-Xin LI ; Ling ZHANG ; Hai LIN ; Bin WU ; Chao-Ying WANG ; Chang LIU ; Jia-Fan SUN ; Shao-Xiao YAN ; Jun LIU ; Shou-Fu XIE ; Mao-Sheng FANG ; Wei-Feng MI ; Hong-Yan ZHANG
The Chinese Journal of Clinical Pharmacology 2024;40(6):815-819
Objective To observe the efficacy and safety of Morinda officinalis oligosaccharides in the continuation treatment of mild and moderate depression.Methods An open,single-arm,multi-center design was adopted in our study.Adult patients with mild and moderate depression who had received acute treatment of Morinda officinalis oligosaccharides were enrolled and continue to receive Morinda officinalis oligosaccharides capsules for 24 weeks,the dose remained unchanged during continuation treatment.The remission rate,recurrence rate,recurrence time,and the change from baseline to endpoint of Hamilton Depression Scale(HAMD),Hamilton Anxiety Scale(HAMA),Clinical Global Impression-Severity(CGI-S)and Arizona Sexual Experience Scale(ASEX)were evaluated.The incidence of treatment-related adverse events was reported.Results The scores of HAMD-17 at baseline and after treatment were 6.60±1.87 and 5.85±4.18,scores of HAMA were 6.36±3.02 and 4.93±3.09,scores of CGI-S were 1.49±0.56 and 1.29±0.81,scores of ASEX were 15.92±4.72 and 15.57±5.26,with significant difference(P<0.05).After continuation treatment,the remission rate was 54.59%(202 cases/370 cases),and the recurrence rate was 6.49%(24 cases/370 cases),the recurrence time was(64.67±42.47)days.The incidence of treatment-related adverse events was 15.35%(64 cases/417 cases).Conclusion Morinda officinalis oligosaccharides capsules can be effectively used for the continuation treatment of mild and moderate depression,and are well tolerated and safe.
9.Meta-analysis of the association between late-life depression and mild cognitive impairment
Min WANG ; Yuanyue LIU ; Lei SHENG
China Modern Doctor 2024;62(8):1-5,11
Objective To systematically evaluate the correlation between elderly depression and mild cognitive impairment.Methods We searched the CNKI,VIP,WanFang Data,Cochrane Library,EMbase,Pubmed,and Web of Science databases using computer,and collected cohort studies on the correlation between elderly depression and mild cognitive impairment.The search time limit was from the establishment of the database to July 6,2023.Two researchers independently completed the literature screening,data extraction,and quality evaluation,and conducted a Meta-analysis using Review Manager 5.4 software.Results A total of 10 articles were included,with a total sample size of 26 813 people.The Meta-analysis showed that there was a correlation between elderly depression and mild cognitive impairment(OR=1.47,95%CI:1.25-1.72,P<0.001).Conclusion Current evidence indicates that elderly depression is one of the risk factors for the development of mild cognitive impairment.This conclusion is limited by the type,quality,and quantity of research,and needs to be validated by more high-quality research.
10.Expert consensus on surgical treatment of oropharyngeal cancer
China Anti-Cancer Association Head and Neck Oncology Committee ; China Anti-Cancer Association Holistic Integrative Oral Cancer on Preventing and Screen-ing Committee ; Min RUAN ; Nannan HAN ; Changming AN ; Chao CHEN ; Chuanjun CHEN ; Minjun DONG ; Wei HAN ; Jinsong HOU ; Jun HOU ; Zhiquan HUANG ; Chao LI ; Siyi LI ; Bing LIU ; Fayu LIU ; Xiaozhi LV ; Zheng-Hua LV ; Guoxin REN ; Xiaofeng SHAN ; Zhengjun SHANG ; Shuyang SUN ; Tong JI ; Chuanzheng SUN ; Guowen SUN ; Hao TIAN ; Yuanyin WANG ; Yueping WANG ; Shuxin WEN ; Wei WU ; Jinhai YE ; Di YU ; Chunye ZHANG ; Kai ZHANG ; Ming ZHANG ; Sheng ZHANG ; Jiawei ZHENG ; Xuan ZHOU ; Yu ZHOU ; Guopei ZHU ; Ling ZHU ; Susheng MIAO ; Yue HE ; Jugao FANG ; Chenping ZHANG ; Zhiyuan ZHANG
Journal of Prevention and Treatment for Stomatological Diseases 2024;32(11):821-833
With the increasing proportion of human papilloma virus(HPV)infection in the pathogenic factors of oro-pharyngeal cancer,a series of changes have occurred in the surgical treatment.While the treatment mode has been im-proved,there are still many problems,including the inconsistency between diagnosis and treatment modes,the lack of popularization of reconstruction technology,the imperfect post-treatment rehabilitation system,and the lack of effective preventive measures.Especially in terms of treatment mode for early oropharyngeal cancer,there is no unified conclu-sion whether it is surgery alone or radiotherapy alone,and whether robotic minimally invasive surgery has better func-tional protection than radiotherapy.For advanced oropharyngeal cancer,there is greater controversy over the treatment mode.It is still unclear whether to adopt a non-surgical treatment mode of synchronous chemoradiotherapy or induction chemotherapy combined with synchronous chemoradiotherapy,or a treatment mode of surgery combined with postopera-tive chemoradiotherapy.In order to standardize the surgical treatment of oropharyngeal cancer in China and clarify the indications for surgical treatment of oropharyngeal cancer,this expert consensus,based on the characteristics and treat-ment status of oropharyngeal cancer in China and combined with the international latest theories and practices,forms consensus opinions in multiple aspects of preoperative evaluation,surgical indication determination,primary tumor re-section,neck lymph node dissection,postoperative defect repair,postoperative complication management prognosis and follow-up of oropharyngeal cancer patients.The key points include:① Before the treatment of oropharyngeal cancer,the expression of P16 protein should be detected to clarify HPV status;② Perform enhanced magnetic resonance imaging of the maxillofacial region before surgery to evaluate the invasion of oropharyngeal cancer and guide precise surgical resec-tion of oropharyngeal cancer.Evaluating mouth opening and airway status is crucial for surgical approach decisions and postoperative risk prediction;③ For oropharyngeal cancer patients who have to undergo major surgery and cannot eat for one to two months,it is recommended to undergo percutaneous endoscopic gastrostomy before surgery to effectively improve their nutritional intake during treatment;④ Early-stage oropharyngeal cancer patients may opt for either sur-gery alone or radiation therapy alone.For intermediate and advanced stages,HPV-related oropharyngeal cancer general-ly prioritizes radiation therapy,with concurrent chemotherapy considered based on tumor staging.Surgical treatment is recommended as the first choice for HPV unrelated oropharyngeal squamous cell carcinoma(including primary and re-current)and recurrent HPV related oropharyngeal squamous cell carcinoma after radiotherapy and chemotherapy;⑤ For primary exogenous T1-2 oropharyngeal cancer,direct surgery through the oral approach or da Vinci robotic sur-gery is preferred.For T3-4 patients with advanced oropharyngeal cancer,it is recommended to use temporary mandibu-lectomy approach and lateral pharyngotomy approach for surgery as appropriate;⑥ For cT1-2N0 oropharyngeal cancer patients with tumor invasion depth>3 mm and cT3-4N0 HPV unrelated oropharyngeal cancer patients,selective neck dissection of levels ⅠB to Ⅳ is recommended.For cN+HPV unrelated oropharyngeal cancer patients,therapeutic neck dissection in regions Ⅰ-Ⅴ is advised;⑦ If PET-CT scan at 12 or more weeks after completion of radiation shows intense FDG uptake in any node,or imaging suggests continuous enlargement of lymph nodes,the patient should undergo neck dissection;⑧ For patients with suspected extracapsular invasion preoperatively,lymph node dissection should include removal of surrounding muscle and adipose connective tissue;⑨ The reconstruction of oropharyngeal cancer defects should follow the principle of reconstruction steps,with priority given to adjacent flaps,followed by distal pedicled flaps,and finally free flaps.The anterolateral thigh flap with abundant tissue can be used as the preferred flap for large-scale postoperative defects.


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