Objective To construct large medical model named by "Huaxi HongYi"and explore its application effectiveness in assisting medical record generation. Methods By the way of a full-chain medical large model construction paradigm of "data annotation - model training - scenario incubation", through strategies such as multimodal data fusion, domain adaptation training, and localization of hardware adaptation, "Huaxi HongYi" with 72 billion parameters was constructed. Combined with technologies such as speech recognition, knowledge graphs, and reinforcement learning, an application system for assisting in the generation of medical records was developed. Results Taking the assisted generation of discharge records as an example, in the pilot department, after using the application system, the average completion times of writing a medical records shortened (21 min vs. 5 min) with efficiency increased by 3.2 time, the accuracy rate of the model output reached 92.4%. Conclusion It is feasible for medical institutions to build independently controllable medical large models and incubate various applications based on these models, providing a reference pathway for artificial intelligence development in similar institutions.

Polyethylene terephthalate (PET) fibers are characterized by exceptional mechanical strength, and textiles blended with cotton fibers combine both comfort and durability, showcasing widespread use in daily applications. However, improper disposal of discarded polyester-cotton textiles has resulted in severe environmental pollution, necessitating urgent and effective mitigation strategies. Enzymatic recycling of textiles offers superior environmental benefits and holds greater potential for industrial applications than alternative recycling methods. This study aims to explore a large-scale solution for the treatment of waste textiles, particularly addressing the challenge of resource recovery from polyester-cotton blended fabrics. An innovative enzymatic depolymerization process has been developed to achieve the recovery of high-purity terephthalic acid monomers. Experiments were conducted on three different textile blends with polyester-to-cotton ratios of 65/35, 70/30, and 80/20, and the influences of different colors on the process were investigated. Initially, the textiles were pretreated through mechanical grinding, which was followed by depolymerization of cotton fibers with commercial cellulase. The crystallinity of PET in the textiles was reduced through a rapid heating and cooling process. Subsequently, the PET was depolymerized by the engineered PET hydrolase. The results demonstrated that after decolorization and separation of terephthalic acid (TPA) from the reaction system, the monomer recovery rates for the three textile blends (65/35, 70/30, and 80/20) reached 90%, 91%, and 92%, respectively. Characterization analysis by nuclear magnetic resonance (NMR) confirmed that the purity of the recovered TPA was greater than 99%. In conclusion, the fully enzymatic recycling process developed in this study shows considerable promise for large-scale industrial applications and is anticipated to significantly advance the adoption and development of enzymatic recycling technologies for PET in industrial processes.
Phthalic Acids/chemistry* ; Polyesters/chemistry* ; Textiles ; Cotton Fiber ; Polyethylene Terephthalates/chemistry* ; Cellulase/chemistry* ; Recycling/methods* ; Polymerization

Objective To observe the efficacy of hepatic artery infusion chemotherapy(HAIC)combined with lenvatinib for treating Barcelona clinic liver cancer(BCLC)stage B or C hepatocellular carcinoma(HCC),and to explore the impact factors of patients'survival time.Methods Data of 104 patients with BCLC stage B or C HCC were retrospectively analyzed.The patients were divided into observation group(n=46,underwent HAIC combined with lenvatinib)and control group(n=58,underwent HAIC alone).The clinical efficacy and adverse reactions of treatments,as well as patients'overall survival(OS)and progression free survival(PFS)were recorded and compared between groups.Cox regressions were used to explore the impact factors of patients'survival time.Results Three months and 6 months after HAIC,the results of modified response evaluation criteria in solid tumors(mRECIST)in observation group were both better than those in control group(both P＜0.05),while no significant difference was found between groups one year after HAIC(P＞0.05).The overall survival rate in observation group was higher than that in control group(P＜0.05),while there was no significant difference of progression free survival rate between groups(P＞0.05).The incidence of rash in observation group was higher than that in control group(P＜0.05).Multiple Cox regression showed prolonged OS in HCC patients in observation group(hazard ratio[HR]=0.425,95%CI[0.255,0.791])compared with that in control group.Compared with pre-treatment Eastern Cooperative Oncology Group(ECOG)score 1,AFP≥400 μg/ml,the number of tumor foci≥3 and BCLC stage C,pre-treatment ECOG score 0,AFP＜400 μg/ml,the number of tumor foci≤2 and BCLC stage B were all independent protective factors of OS in HCC patients(all P＜0.05).Conclusion HAIC combined with lenvatinib was safe and effective for treating BCLC stage B or C HCC.Pre-treatment ECOG score,serum AFP level,the number of tumor foci and BCLC stage were all independent impact factors of OS.

Objective:To explore the effect of moderate intensity physical exercise on depression, anxiety and cognitive function of schizophrenic patients and its possible biochemical mechanism.Methods:Totally 148 patients with schizophrenia who were hospitalized in hospital from March 2019 to March 2021 were randomly divided into control group ( n=75) and exercise group ( n=73). The patients of the two groups were given drug treatment and routine exercise according to clinical practice, and the patients in exercise group were given additional medium-intensity physical exercise.Self-rating anxiety scale (SAS) and self-rating depression scale (SDS) were used to evaluate the poor mental state of the subjects.The verbal fluency task(VFT), digital span test(DST), trail making test-A(TMT-A) and the positive and negative symptom scale (PANSS) were used to evaluate cognitive function.The levels of endocannabinoids (eCBs) receptors were detected by high performance liquid chromatography, and the levels of monoamine neurotransmitters and eCBs in the patients' serum were determined by enzyme-linked immunosorbent assay (ELISA). SPSS 19.0 software was used for statistical analysis.The measurement data between the two groups were compared by t-test and the counting data between the two groups were compared by χ2 test. Results:(1) After effective intervention, the scores of SAS, SDS, TMT-A and PANSS of the two groups were significantly lower than those before intervention, and the difference before and after intervention between the two groups was statistically significant( t=6.00, 6.52, 25.79, 17.03, all P<0.01). The scores of SAS, SDS, TMT-A and PANSS after intervention in the exercise group were significantly lower than those in the control group( t=4.66, 20.88, 6.61, 8.95; all P<0.01). The number of VFT and DST in the two groups after intervention were significantly higher than those before intervention, and the differences before and after intervention between the two groups were statistically significant( t=13.78, 22.76, both P<0.01). After effective intervention, the number of VFT and DST in exercise group were significantly higher than those in the control group( t=5.02, 5.15, both P<0.01). (2) After effective intervention, the contents of monoamine neurotransmitters and eCBs in serum of the two groups were significantly higher than those before intervention, and HVA level ((63.68±6.99) pg/mL), MHPG level ((175.90±16.22) pg/mL), 5-HIAA level ((29.94±4.19) pg/mL) and CBR1 level ((6.70±1.40)μg/L), 2-AG level ((61.90±5.73)pmol/g) and AEA level ((76.48±6.59) pmol/g) in exercise group were significantly higher than those in the control group ((52.97±5.37)pg/mL, (138.50±11.52)pg/mL, (23.87±3.15)pg/mL, (5.71±1.29)μg/L, (52.13±5.14)pmol/g, (67.66±5.88)pmol/g)( t=10.43, 16.21, 10.91, 8.65, all P<0.01). Conclusion:Moderate intensity physical exercise can significantly improve their depression, anxiety and cognitive function, which may be related to regulating the levels of ECBS and their receptors in patients with chronic schizophrenia to increase monoamine neurotransmitters.

Objective ToexploretheeffectofTIPS+GCVEcombinedwithPSEonhemodynamicsinpatientswithlivercirrhosis,portal hypertensionandsplenomegaly.Methods 56patientswereincludedfromJanuary2015toDecember2016 whounderwentTIPS+GCVEcombinedwithPSE.Patientswerefollowed-upon1month,3months,6monthsand1yearaftersurgery,andstatisticanalysis weredoneonportalveinhemodynamicindex:portalveintrunkdiameter(PVD),portalveinvelocity(PVV),portalvenousbloodflow (PVF),splenicveintrunkdiameter(SVD)andvelocityofbloodflowinsplenicvein(SVV).Results Thereweresignificantdifferencesinportal veinpressurebeforeandafterthebypassinall56patients.PVDandPVV weresignificantlydifferentbetween3and6 monthsafter surgeryandpre-surgery.PVF wassignificantlydifferentcomparing6 monthsand1yearaftersurgery withpre-surgery.SVDand SVV weresignificantlydifferentbetween3 months,6 monthsand1yearaftersurgeryandpre-surgery.Conclusion TIPS+GCVE combinedwithPSEcouldeffectivelyreduceportalveinpressure,improveportalveinandspleenveinbloodflow,increaseportalvenousblood flow,andimprovepatients’liverfunction.

Objective Toinvestigatethemethod,safetyandefficacyoftranscatheterarterialchemoembolization(TACE)combined withargonheliumknifecryoablationintreatmentofadvancedprimaryhepaticcancer.Methods FiftyGfourpatientswithadvanced primaryhepaticcancerunderwentTACEfirstly,andfollowedbytheargonhelium knifecryoablationunderCT/ultrasoundguiding percutaneouspunctureafter1－2weeks.2－3cyclesofcryotherapywereperformedduringtheoperation.Afteroperation,enhanced CT/MRIwasperformedtofollowGup.Results Themediansurvivaltimewas17.6months.The6Gmonthsurvivalratewas100%,the 12Gmonthsurvivalratewas89.34%,thetumorprogressiontimewas9.3 months,andtheshortestsurvivalperiodwas8 months.Recent curativeeffectevaluationshowedCRin9patients,PRin34patients,SDin6patients,PDin5patients(RR＝79.62%,DCR＝90.74%). Conclusion TACEcombinedwithargonheliumknifecryoablationisasafeandeffectivetreatment,whichprovidesanewtreatment planforpatientswithprimaryhepaticcancer.

Objective To retrospectively analyze the etiology and prognosis of the children and adolescents with situational syncope in a single center.Methods There were 4 274 cases of children and adolescents [aged from 2 to 18 years old,the average age being (10.82 ± 3.13)years old],male 2 208 cases,female 2 066 cases with ortho-static intolerance syndromes,such as unexplained syncope or symptoms of presyncope,etc,who were treated at Children's Syncope Outpatient Department or Inpatient Department in the Second Xiangya Hospital,Central South University from January 2000 to November 2017.All subjects underwent detailed history investigation,careful physical examinations, routine 12-lead electrocardiogram,Holter electrocardiogram(ECG),chest X-ray,echocardiography,electroencephalo-gram(EEG)and head computerized tomography(CT)or magnetic resonance imaging(MRI),blood biochemical exami-nation (including fasting glucose,myocardial enzymes)and organic diseases in the heart,brain,blood vessels were ex-cluded,but the cause of syncope was still not clear.The head-up tilt table test (HUTT)was performed after the pa-tients or/and the families wrote the informed consent agreement.Results A total of 177 (4.14%)patients with situa-tional syncope were diagnosed among 4 274 cases.Etiology included the abdominal musecle exercise (35.59%,63/177 cases),urination (24.29%,43/177 cases),bathing (9.60%,17/177 cases),defecation (7.34%,13/177 cases), singing (5. 08%,9/177 cases),rides (4.52%,8/177 cases),blood-injection-injury phobia (3.95%,7/177 ca-ses),swallowing (3.39%,6/177 cases),and hair-grooming (2. 82%,5/177 cases),syncope during acupuncture treatment (2. 26%,4/177 cases),and cough (1.13%,2/177 cases). The common positions were upright position (84.18%,149/177 cases),squatting to standing position (8.47%,15/177 cases),sitting position (5.08%,9/177 cases),and squatting position (2.26%,4/177 cases).HUTT positive rate was 69.49%(123/177 cases),common type of hemodynamic were the vasodepressive type of vasovagal syncope (45.20%,80/177 cases),mixed type of vaso-vagal syncope (19.77%,35/177 cases),postural orthostatic tachycardia syndrome (3.39%,6/177 cases)and the cardiac suppressive type of vasovagal syncope (1.13%,2/177 cases).In 35 cases of situational syncope,the number of children and adolescents with syncope was significantly reduced by health education and upstanding training.By the first follow-up review,the cases were reduced from (2.69 ± 1.81)times to (0.59 ± 0.96)times after healthy edu-cation of 2-16 weeks [(4.97 ± 3.16)weeks].By the second follow-up review,3 out of 8 cases did not faint,3 cases fainted 1 time,1 case fainted 2 times,and 1 case fainted 4 times.The outcomes of the first reexamination of HUTT in 16 cases were negative,and other 3 cases were negative by twice visit.Conclusions The etiology of children and adoles-cents are flag-raising(abdominal muscle exercise),urination,bathing,defecation,singing,riding,blood-injection-injury phobia,swallowing,hair -grooming,syncope during acupuncture treatment and coughing. Healthy education is good for situational syncope.

Objective To summarize and analyze the intraoperative and postoperative complications arising from the Anderson-Hynes transperitoneal laparoscopic pyeloplasty (LP) procedure in the treatment of patients with ureteropelvic junction obstruction (UPJO).Methods There were 154 consecutive patients who underwent transperitoneal LP between November 2011 and December 2015.These patients' data were retrospectively analyzed for intraoperative and postoperative complications.All the 154 patients were primary UPJO.Of the 154 patients,124 (80.7％) were males and 30 (19.3％) were females,114(74.0％) were found in the left side,32(21.0％)were found in the right side,while 8 (5.0％)were found in bilateral.The mean age was 3.9 years old(ranged 8-180 months).28 patients(18.2％) have the history of urological infection or flank pain.Results Mean operative time was 89 minutes (ranged 42-330 min).The mean blood loss was 7.5ml (ranged 2-50 ml),and no blood transfusions were necessary intra-and post-operatively.The mean postoperative hospital stay was 5.7 days (ranged 3-28 days).The mean follow-up duration was 28 months (ranged 6-54 months).2 laparoscopic surgeries were converted into open surgeries.One patient suffered with repeated infection after removing the double J stent two months postoperatively.The ultrasound and intravenous urography showed the more severe obstruction compared to that before surgery.The second operation was performed and resolved this problem.The overall success rate was 98％.All 28 patients,who has preoperative symptoms,reported a complete resolution of symptoms after the procedure.Intraoperative complication occurred in 11 (7.1％) patients,including injury of parapyelic vessel while in 3 (1.9％),the misplacement of the Double-J stent in 6 (3.8％),conversion to laparotomy in 2(1.3％).The postoperative complications occurred in 24(15.6％) patients,including urine leakage in 10(6.5％),infectious urinoma in 7 (4.5％),infection after removing the Double-J in 4 (2.6％),temporary intestinal obstruction,recurrent UPJO were in 1 (0.6％)respectively.Conclusions Our retrospective analysis confirmed that LP is an effective and safe procedure.The most common intraoperative complications are difficulty in double-J stent insertion.The most common postoperative complication is urine leakage.

Objective To explore the effect of Shexiang baoxin Pillls on super‐elder patients with myocardial infarction ,and observe and analyze its prognosis .Methods Two hundred super‐elder patients with myocardial infarction were selected in the hos‐pital from December 2013 to November 2014 ,they were randomly divided into control group(n=100) and observation group(n=100) .The control group used conventional drug treatment ,and the observation group treated with Shexiang baoxin pillls on the ba‐sis of the control group .Three months wasr a treatment period .To observe the clinical therapeutic effect ,echocardiography was used to detected the left ventricular wall thickness ,left ventricular end‐diastolic diameter (LVEDD) ,left ventricular ejection fraction (LVEF) before and after treatment .Observed 6 minutes walking distance .Total cholesterol (TC) ,blood lipid ,low density lipopro‐tein (LDL‐C) ,c‐reactive protein (CRP) ,and other indicators were detected .Results The total effective rate of the observation group was [72 .00% (72/100)] was higher than the control group [65 .00% (65/100)] ,P<0 .05 .The re‐hospitalization rate of the observation group was [23 .00% (23/100)] was lower than the control group [34 .00% (34/100)] ,P<0 .05 .The left ventricular posterior wall thickness and LVEDD of the observation group after treatment were(10 .12 ± 0 .40)mm and(49 .11 ± 1 .39)mm , which were lower than the control group after treatment [(11 .06 ± 0 .52)mm and (51 .36 ± 1 .46)mm] ,LVEF (% ) of the observa‐tion group after treatment was (0 .51 ± 0 .12)% ,which was higher than the control group after treatment (0 .47 ± 0 .11)% ,all P<0 .05 .TC ;LDL‐C and CRP of the observation group after treatment were (5 .19 ± 0 .32) mmol/L ,(2 .83 ± 0 .30) mmol/L and (54 . 11 ± 4 .83) mg/L ,they were lower than the control group after treatment [(5 .48 ± 0 .37) mmol/L ,(3 .10 ± 0 .33) mmol/L and (62 . 38 ± 4 .36) mg/L] ,all P<0 .05 .6 min walking distance of the observation group after treatment was (376 .38 ± 19 .41)m ,it was higher than the control group after treatment(331 .04 ± 22 .18)m ,P<0 .05 .The complications of the observing group[38 .00% (38/100)] was lower than the control group after treatment 47 .00% (47/100) ,P<0 .05 .Conclusion There is better clinical effect on super‐elder patients with myocardial infarction by Shexiang baoxin Pillls ,which can reduce hospitalization rates again ,improve left heart function and blood lipid levels ,reduce complications .

Objective To investigate the effect of different pore sized hydroxyapatite for promoting bone vascularization in tissue engineering.Methods Male Wistar rats were randomly divided into three groups,named group A,B and C,which were im-planted hydroxyapatite bioceramics compositing 4 μg bone morphogenetic protein with different aperture of 200 -300,350 -450, 500-600 μm in the back subcutaneously.The size of each block was 5 mm×5 mm×1 mm in a weight about of 40.0 mg.After im-plantation,the animals were killed and the implants and the surrounding tissue were taken out at the first,second,third and forth week respectively.HE staining of histological analysis was used to detect the situation of local neovascularization.Results There was significant difference between second and third week in group A.Comparing the area of vascularization at different time points in group B and group C,there were significant difference in the comparison of intragroup (P <0.05 ).During the first week after surgery,there was only group C that had the area of vascularization.During the second and forth week after operation,the area of vascularization in group B and group C were significant higher than group A (P <0.05).The C group showed a great deal of new-born blood vessels and clear formation of bone trabeculae.Conclusion The hydroxyapatite bioceramics of 500-600 μm could better promote vascalarization of tissue engineering in bone.