Objective To construct a model for predicting ki-67 expression in hepatocellular carcinoma using the intratumoral and peritumoral radiomic features of contrast enhanced magnetic resonance imaging(CEMRI)in the arterial phase as well as clinical imaging features.Methods A total of 120 patients pathologically diagnosed with hepatocellular carcinoma(HCC)from January 2016 to December 2024 in No.910 Hospital of the Joint Logis-tics Support Force of the Chinese People's Liberation Army were retrospectively enrolled and randomly divided into a training set(84 cases)and a test set(36 cases)in a ratio of 7∶3.ITK-SNAP software was used to delineate the global region of interest(ROI)of HCC on the arterial phase MR images.The ROIs of all patients were automatically expanded outward by 2 mm,and then the intratumoral ROI areas were eliminated to obtain the peritumoral ROI.With the help of PyRadiomics software,1 198 intratumoral and peritumoral radiomic features were extracted.Spearman correlation analysis,maximum relevance-minimum redundancy(mRMR),and least absolute shrinkage and selection operator(LASSO)regression were used to reduce the data dimension and select the best features.Then,a radiomics model of the logistic regression(LR)machine learning algorithm was constructed.A combined model including clinical imaging features and radiomics features was established.The area under the curve(AUC),accuracy,sensitivity,specificity,positive predictive value(PPV),negative predictive value(NPV),calibration curve and decision curve analysis(DCA)were used to evaluate the efficacy of the intratumoral and peritumoral radiomics features combined with clinical imaging features model in predicting ki-67 expression in hepatocellular car-cinoma.Results The intratumor model exhibited an efficacy in predicting the expression of ki-67 in hepatocellular carcinoma with AUC values of 0.817 and 0.787 in the training set and test set,respectively.The peritumoral model showed an efficacy with AUC values of 0.805 and 0.633 in the training set and test set,respectively.The intratumoral and peritumoral model demonstrated AUC values of 0.874 and 0.836 in the training set and test set,respectively.The combined model constructed by integrating the intratumoral and peritumoral model with clinical imaging features yielded AUC values of 0.877 and 0.849 in the training set and test set,respectively,indicating clinical imaging features improved the performance of the model.DCA showed that the combined models all had good clinical benefits,with the intratumoral and peritumoral model performing the best.Conclusion The intratumoral and peritumoral radiomics model based on CEMRI arterial phase combined with clinical imaging data can accurately predict the expression of ki-67 in hepatocellular carcinoma.This combined model yields the best clinical benefit.

Objective To construct a model for predicting ki-67 expression in hepatocellular carcinoma using the intratumoral and peritumoral radiomic features of contrast enhanced magnetic resonance imaging(CEMRI)in the arterial phase as well as clinical imaging features.Methods A total of 120 patients pathologically diagnosed with hepatocellular carcinoma(HCC)from January 2016 to December 2024 in No.910 Hospital of the Joint Logis-tics Support Force of the Chinese People's Liberation Army were retrospectively enrolled and randomly divided into a training set(84 cases)and a test set(36 cases)in a ratio of 7∶3.ITK-SNAP software was used to delineate the global region of interest(ROI)of HCC on the arterial phase MR images.The ROIs of all patients were automatically expanded outward by 2 mm,and then the intratumoral ROI areas were eliminated to obtain the peritumoral ROI.With the help of PyRadiomics software,1 198 intratumoral and peritumoral radiomic features were extracted.Spearman correlation analysis,maximum relevance-minimum redundancy(mRMR),and least absolute shrinkage and selection operator(LASSO)regression were used to reduce the data dimension and select the best features.Then,a radiomics model of the logistic regression(LR)machine learning algorithm was constructed.A combined model including clinical imaging features and radiomics features was established.The area under the curve(AUC),accuracy,sensitivity,specificity,positive predictive value(PPV),negative predictive value(NPV),calibration curve and decision curve analysis(DCA)were used to evaluate the efficacy of the intratumoral and peritumoral radiomics features combined with clinical imaging features model in predicting ki-67 expression in hepatocellular car-cinoma.Results The intratumor model exhibited an efficacy in predicting the expression of ki-67 in hepatocellular carcinoma with AUC values of 0.817 and 0.787 in the training set and test set,respectively.The peritumoral model showed an efficacy with AUC values of 0.805 and 0.633 in the training set and test set,respectively.The intratumoral and peritumoral model demonstrated AUC values of 0.874 and 0.836 in the training set and test set,respectively.The combined model constructed by integrating the intratumoral and peritumoral model with clinical imaging features yielded AUC values of 0.877 and 0.849 in the training set and test set,respectively,indicating clinical imaging features improved the performance of the model.DCA showed that the combined models all had good clinical benefits,with the intratumoral and peritumoral model performing the best.Conclusion The intratumoral and peritumoral radiomics model based on CEMRI arterial phase combined with clinical imaging data can accurately predict the expression of ki-67 in hepatocellular carcinoma.This combined model yields the best clinical benefit.

Objective To investigate the clinical value of docetaxel combined with psychological intervention in elderly patients with advanced non-small cell lung cancer. Methods the control group received docetaxel chemotherapy, and the study group received psychological intervention on the basis of docetaxel chemotherapy. The efficacy, adverse reactions and adverse emotions of two groups of elderly patients with advanced non-small cell lung cancer were recorded. Results the total efficiency was up to 54.17％, only 41.67％ of the control group (P<0.05); toxic and side effects in the research group alopecia, gastrointestinal reaction, rash was significantly lower than the control group did not received psychological intervention (P<0.05); the control group after treatment SAS, SDS score increased than before more than the study group (P<0.05). Conclusion On the basis of docetaxel in the treatment of elderly patients with advanced non-small cell lung cancer, the use of appropriate psychological intervention measures can significantly alleviate the negative emotions, and have positive significance to ensure the effectiveness and safety of chemotherapy.

Aim To study the effect of CSE ( cigarette smoke extract ) on the single-molecule interactional force between thrombomodulin and thrombin by live-cell single-molecule force spectroscopy. Methods CSE was prepared by a previously reported method. The plasmid of TM-GFP was constructed and transfect-ed in COS-7 cells. The expression of TM-GFP was de-tected by fluorescence microscopy and laser scanning confocal microscopy. The transfected COS-7 cells were grouped ( 1 ) GFP -thrombin group ( 2 ) TM-thrombin group ( 3 ) CSE-TM-thrombin group ( 4 ) CSE- GFP-thrombin group. Force measurements with the thrombin modified AFM tips on the living cell surface were car-ried out on PicoSPM II with a Pico-Scan 3000 control-ler and a larger scanner. The force curves measured in living cells were recorded by PicoScan 5 software and analyzed by MATLAB R2009aMetlab. Results The single-molecule binding force of thrombomodulin and thrombin ( TM-Thr ) was determined ( 60. 90 ± 0. 82 ) pN. The binding probability for TM-Thr was about (22. 58 ± 3. 95)%. Antibody blocking binding proba-bility for TM-Thr was ( 2. 58 ± 2. 0 )%. The binding probabilities for GFP-Thr group, CSE-TM-Thr group and CSE-GFP-Thr group were significantly decreased compared with TM-Thr group ( P<0. 05 ) . The mean value of the most probable single molecular interaction force of thrombin/TM-ECD was determined as ( 45. 30 ± 1. 37 ) pN, the binding probability of thrombin and TM-ECD was ( 23. 25 ± 7. 02 )%. When the binding was blocked with the TM-MAb solution, the binding probability decreased to ( 4. 64 ± 2. 31 )%. The bind-ing probability was ( 8. 31 ± 1. 06 )% in the CSE-TM-thr-S group. When further blocked with TM-MAb, the binding probability was ( 5. 17 ± 2. 96 )%. Conclusion CSE significantly decreases the binding probability for TM-Thr to induce intravascular thrombosis.

Objective To explore the relationship between the genetic polymorphism and serum concentration of mannan binding lectin (MBL)and the clinical manifestation of the hand-foot-mouth disease (HFMD) children infection by human enterovirus 71 (HEV71).Methods One hundred and thirty-eight children diagnosed as HFMD infected by HEV71 (including 80 mild cases and 58 severe cases) and 40 healthy,symptom-free children were investigated.The concentrations of serum MBL were measured in 40 healthy controls,80 mild HFMD cases and 56 severe HFMD cases at both acute and convalescent phases by a sandwich enzyme immunoassay with a human MBL ELISA kit.And the genomic DNA of all cases were extracted from blood according to standard phenol-chloroform procedure.Six SNPs in the MBL gene(-550G/C,-221G/C and +4C/T of the promoter,CGT52TGT,GGC54GAC,and GGA57GAA of the exon 1) were analyzed by a sequencing-based typing method.Results The MBL serum level of the severe HFMD circulatory respiratory failure group in acute phase was significantly increased compared with severe HFMD encephalitis group,the mild cases and the control,but in the convalescence phase it significantly decreased compared with them.The frequencis of type B/B mutation (+230 of the exon 1),type P/P mutation (+4C/T of the promoter),and type H/H mutation (-550G/C of the promoter) were a significant difference among mild group,severe group and the control(P=0.006,0.043,0.028,respectively).The frequencies of LYPB/LYPB genotype and HYPA/HYPA genotype were a significant difference among mild group,severe groupand the control (P=0.028,0.014,respectively).Conclusion Low MBL protein level as a result genetic polymorphism seems to be correlative with clinical manifestation of HFMD disease.The MBL gene mutation and low MBI.protein level may be used as one of the evaluation method of HFMD severeity.

Objective Detrusor overactivity (DO) is one known cause of overactive bladder (OAB) symptoms in benign prostatic hyperplasia (BPH).In this study,OAB symptoms suggestive of DO in BPH were treated with α1-blocker monotherapy or α1-blocker and antimuscarinics add-on therapy,and the efficacy and safety were assessed.Methods BPH patients who suffered from OAB symptoms for at least 3 month were enrolled in a prospective self-control study from August 2010 to April 2012.The inclusion criteria are total international prostate symptom score (IPSS) ≥8,OAB Symptom Score (OABSS) ≥3,OABSS urgency score ≥2,Postvoid residual volume (PVR) ＜ 100 ml,and maximum urinary flow rate (Qmax) ≥ 5 ml/s.All the patients who met the inclusion criteria were treated with α1-blocker ( tamsulosin 0.2 mg/day or doxazosin 4 mg/day) for 2 weeks.After 2 weeks,patients with no symptomatic improvement ( OABSS≥3) underwent pressure-flow test,and those whose Pdet≥ 40 cm H2O and DO presented more than one time were added antimuscarinics (solifenacin 5 mg/day or tolterodine 4 mg/day) for an additional 2 weeks.OABSS,IPSS,QOL,Qmax and PVR were re-evaluated every 2 weeks.Results Ninety-four cases of BPH/OAB patients met the inclusion criteria and completed 4 weeks treatment.The baseline of total OABSS was 7.0 ± 1.3,IPSS was 17.0 ± 1.7,QOL was 5.0 ±0.7,Qmax was (8.8 ±2.5) ml/s and PVR was (86.0 ± 16.5) ml.After 2 weeks treatment with α1-blocker alone,OABSS was 5.2 ± 0.8,IPSS was 14.2 ± 1.9,QOLwas4.O±0.8,Qmaxwas (11.4±2.4) ml/s and PVR was (67.9±12.9) ml.After another2 weeks treatment with α1-blocker plus antimuscarinics,OABSS was 3.1 ± 0.8,IPSS was 11.1 ± 1.9,QOL was 3.1 ± 0.7,Qmax was ( 10.8 ± 2.4) ml/s and PVR was (71.8 ± 11.9 ) ml.Compared with baseline values,OABSS,IPSS,QOL,Qmax and PVR significantly improved (P ＜ 0.01 ) in α1-blocker monotherapy group and α1-blocker plus antimuscarinic group.The improvement of OABSS,IPSS,QOL scores of α1-blocker plus antimuscarinic group were greater than α1-blocker monotherapy group (p ＜ 0.05 ),while Qmax and PVR showed no differences between the two groups.No acute urinary retention (AUR) was deteted.Conclusion Both of α1-blocker monotherapy and α1-blocker with antimuscarinics add-on therapy can improve OAB symptoms.

BACKGROUND: It is easy and feasible to treat anterior urethral stricture using internal urethrotomy, however, its drawback is high recurrence in the long-term follow-up. OBJECTIVE: To evaluate the effect of submucosal injected verapamil on prevention of anterior urethral stricture recurrence after internal urethrotomy. METHODS: Totally 60 consecutive males with anterior urethral stricture underwent internal urethrotomy with or without urethral submucosal injection of verapamil, in the Department of Urology, First Affiliated Hospital of Fujian Medical University, from December 2006 to April 2008, were selected. All cases were followed up at least 24 months.RESULTS AND CONCLUSION: All cases were followed up for 24-39 months, with an average of 28.5 months. Urethral stricture recurred in two cases in the verapamil-treated group but 8 cases in the untreated group. This difference in stricture recurrence between the two groups was statistically significant (P < 0.05). The results demonstrated that submucosal injection of verapamil at the stricture site significantly reduces the stricture recurrence rate after internal urethrotomy. Further studies involving larger number of cases and longer follow-up are warranted to confirm the efficacy and safety of this therapy.

OBJECTIVETo investigate the chemical constituents from the whole plants of Senecio chrysanthemoides.

METHODConstituents were isolated by using a combination of various chromatographic techniques including column chromatography over silica gel, Sephadex LH-20, and ODS C18, as well as reversed-phase HPLC. Structures of the isolates were identified by spectroscopic and chemical methods.

RESULTEighteen glycosides were obtained from a H2O-soluble portion of an ethanolic extract of the whole plants of Senecio chrysanthemoides and their structures were elucidated as 5'-methoxyligusinenoside B (1), hyuganoside III b (2), citrusin A (3), alaschanioside A (4), citrusin B (5), dehydrodieoniferyl alcohol 4, gamma'-di-O-beta-D-glucopyranoside (6), osmanthuside G (7), syringin (8), dehydrosyringin (9), 2-(4-hydroxy-3,5-dimethoxyphenyl) ethanol 4-O-beta-D-glucopyranoside (10), 2-phenylethyl beta-gentiobioside (11), phenethyl beta-D-glucopyranoside (12), nikoenoside (13), benzyl beta-D-glucopyranoyl (1 --> 6 ) -beta-D-glucopyranoside (14), 3,5-dimethoxy-4-hydroxybenzyl alcohol 4-O-beta-D-glucopyranoside (15), icariside B2 (16), sonchuionoside C (17), and 1-[(beta-D-glucopyranosyloxy) methyl] -5,6-dihydropyrrolizin-7-one (18).

CONCLUSIONCompound 1 was a new lignan glycoside, and the remaining compounds were obtained from this plant for the first time.

Chromatography ; methods ; Glycosides ; chemistry ; isolation & purification ; Lignans ; chemistry ; isolation & purification ; Plant Extracts ; chemistry ; Plants, Medicinal ; chemistry ; Senecio ; chemistry

OBJECTIVETo investigate the chemical constituents from the whole plants of Senecio chrysanthemoides.

METHODThe chemical constituents were isolated and purified by chromatographic techniques over silica gel, Sephadex LH-20, preparative TLC and preparative HPLC. Structures of the compounds were identified by NMR and MS spectroscopic methods.

RESULTTwenty five compounds were obtained and their structures were elucidated as seneciphyline (1), senecionine (2) , 1,2-dihydrocacalohastine (3) , eu-desm-4( 15)-ene-1beta,6alpha-diol (4), 7,11,15-trimethyl- 3methylidenehexadecane-1,2-diol (5), faradiol 3-O-palmitate (6),maniladiol 3-O-palmitate (7), faradiol (8), maniladiol (9), beta-amyrin (10), alpha-amyrin (11), betulin (12), loranthol (13), (+)-syringaresinol (14) , 1-hydroxy-4-oxo-cyclohexane-1-acetate (15), 2, 6-dimethoxy-p-benzoquinone (16), stigmasta-5, 22-dien-3beta-hydroxy-7-one (17) , stigmasta-5, 22-dien-7-one (18) , stigmasta-4-en-3-one (19), stigmasta-4,22-dien-3-one (20), beta-sitosterol (21), stigmasterol (22), daucosterol (23), glycerol 1-hendecanoate (24), and methyl hendecanoate (25).

CONCLUSIONCompounds 5-9,13, 17-20 and 24 were obtained from the genus Senecio for the first time.

Acetates ; chemistry ; Chemical Fractionation ; Plant Extracts ; analysis ; isolation & purification ; Senecio ; chemistry

BACKGROUND: Acetabular malignant tumor reconstruction is to obtain pelvic stability and lower limb walking function to excise the tumor at safe margin.Excision range has been evaluated by MRI,CT,X-ray,which are subjective and lack preoperative design.Computer-aided three-dimensional reconstruction can evaluate tumor erosion range from all planes to accurately excise the tumor.OBJECTIVE: To evaluate the value of computer aided design in the treatment of acetabular malignant tumor.METHODS: One case with acetabular hemangiosarcoma was checked with lamellar CT scanning,which acquired some two-dimensional data in disease area.The three-dimensional reconstruction of anatomical model,design of cutting bone extent,design of individual prosthesis and sham operation were made by computer.Based on computer aided design proposal,acetabular tumor was resected,pelvic ring and right hip articulation were reconstructed with allogeneic semi-pelvis and individual total hip replacement.RESULTS AND CONCLUSION: The patient began to non-weight bearing walk with double crutches 2 months after operation.At6 months,the patient walked normally.The right hip joint motion was good with no pain.Postoperative X-ray film displayed individual prosthesis matched to pelvis.The patient fell a little numbness of skin in the lateral of right hip.No phlebothrombosis,prosthesis loosening or dislocation was found.Computer aided design has a good perspective of application in the treatment of acetabular malignant tumor.Individualized treatment can improve operation accuracy,reliability,convenience and curative effect.