Objective To investigate the factors affecting the recovery of immunological function after bilirubin decreasing interventional therapy in patients with obstructive jaundice.Methods 67 patients with malignant obstructive jaundice were investigated.The patients were randomly divided into the enteral nutrition (EN) group (n =34)and the parenteral nutrition (PN) group (n =33).TBIL,DBIL,TSP,ALB,PA,TF,CD3 +,CD4 +,CD8 +,CD4 +/CD8 + were determined before PTCD and at the 7th day after the procedure.Results Except for 20 patients,the levels of TBIL,DBIL,CD8 + significantly declined,and the levels of TSP,ALB,PA,TF,CD3+,CD4+,CD4+/CD8 + significantly increased in the 2 groups of patients.There was no significant difference in the recovery of liver function and immunological status between the PN and the EN groups.Conclusions The recovery of immunological function was significantly associated with reduction of serum bilirubin in patients with malignant obstructive jaundice.There was no relationship with the ways of nutrition support.

Hydatid is a common pathogen found in human and animals,incidence of hepatic echinococcosis is high in the west China.In recent years,operation and chemotherapy are basic treatment.Faced with varieties of operational manner,a proper choice is very important.5 operational manners are compared in this article,furthermore,problems in the selection of operational manner is analysed.

Puromycin-sensitive aminopeptidase (PSAP) belongs to the M1 family of aminopeptidases, characterized by the N-terminal substrate binding sequence GAMEN, the enzyme activity center HEXXH(X)₁₈E motif, and the C-terminal ERAP-1-like superfamily structural domain. Encoded by the gene NPEPPS located at 17q21.32, PSAP consists of 919 amino acids and is widely distributed throughout the human body, with the highest expression in the brain, followed by the heart and skeletal muscle. It is also found in the liver, renal tubular epithelium, small intestine, large intestine epithelium, and gastric epithelial cells. PSAP primarily relies on its aminopeptidase hydrolytic activity to remove toxic protein aggregates such as Tau, poly Q, and Cu, Zn-superoxide dismutase 1, making it an important factor in the development of diseases such as Alzheimer's disease, Huntington's chorea, and tumors. Existing PSAP inhibitors include bestatin, amastatin, leuhistin, actinonin, and purinomycin, some of which are already available or in clinical trials. This review provides an overview of the structural and biological functions of M1 family aminopeptidases, with a focus on PSAP, to facilitate further research and targeted drug development.

Knee osteoarthritis (KOA) is a common degenerative joint disease. Biomechanics of lower extremity plays an important role in KOA. Foot progression angle, with the advantages of non-invasive, convenience, has been attached great importance by people gradually. Changing foot progression angle may effect the knee adduction torque, tibia rotation, muscle activity, which leads to change the load of the knee joint, and alleviate the pain, improve the function of knee joint and the quality of life of the patients.

Objective To evaluate and follow-up the effection of vertebral artery origin stenting (VAOS) by color Doppler flow imaging(CDFI) and assess the rate of restenosis after stenting. Methods One hundred and thirty-five patients with stenosis of vertebral artery origin segment underwent stent input,135 pieces of stent was input in vertebral artery origin segment with moderate or severe stenosis,in which 70 bare metal stent(BMS) and 65 drug-eluting stent(DES). The diameter of VAOS, peak systolic velocity (PSV),end diastolic velocity (EDV) and resistence index(RI) of segment at origin and cervical vertebral were evaluated before and every 1,3,6, 12 month after VAOS by CDFI. The incidence of restenosis were calculated,and the factors of restenosis were analysed by COX regression. Results The diameter of VAOS was improved from (1.20±0.38) mm to (2.61±0.49) mm after stent procedure ( P = 0. 000), PSV and EDV also decreased from (296.02 ± 113.86)cm/s to ( 113.47 ± 36.35 )cm/s and (90.08 ± 47. 59)cm/s to (32. 21 ± 12. 69)cm/s respectively(P=0.000). The PSV and RI in cervical segment were increased from (46. 88 ± 17.46)cm/s to (67.79 ± 24.31 ) cm/s and 0. 54 ± 0. 10 to 0.62 ± 0.09 respectively( P = 0. 000).Over a median 7 months follow up(range 1 to 12 months) ,the cumulative restenosis rate at 3,6,12 month were 7.9% ,16. 9% and 25.0% respectively. DES was the only one negtive predictor of restenosis(OR=0. 388,95% CI:0.162-0.931, P = 0.034),and the factor of residual stenosis contributed to the occurance of restenosis after stenting(OR = 3.758,95% CI:1.498-9.427, P=0.005). Conclusions CDFI is a sensitive and noninvasive examination to follow-up VAOS and detect in-stent restenosis immediately. VAOS has a high rate of restenosis. DES is effective to prevent in-stent restenosis.

Objective To analyze the CT findings of melamine induced urinary calculi.Methods Nineteen children with a history of ingestion of melamine contaminated infant formula milk were studied, including 12 males and 7 females, age ranged from 50 days to 5 years.Results CT demonstrated renal pelvic and ureteral stones in 13 cases, with urinary obstruction in 9 of them.The size of the stones ranged from 0.3 cm × 0.3 cm to stag-horn calculus.The density of the stones measured from a low of 40-70 HU up to a high of 410 HU with an average density of 160 HU.Conclusion CT scan is an excellent modality in demonstrating urinary tract calculi caused by melamine. It is the method of choice when ultrasound examinations are equivocal.

Literature review of the world on hospital brands, data collection in summary and comparison, and specialist consultancy were used to set the appraisal indicators, while the stratum analysis was used to calculate the weight coefficients of individual indicators, for building the appraisal indicators system for hospital brand effect. In addition, the indicators system and appraisal model were called into play to explore the use of hospital brands, offering scientific references for hospital management.

In vascular invasive surgery procedures, because doctors suffered from a large number of X-ray radiation, and it is difficult to manipulate catheter, so vascular interventional robot has been rapidly developed. On the basis of analysis of vascular surgical intervention process, key technologies of vascular interventional surgical robots are provided. The image navigation system, the mechanical structure, control systems and force feedback are also analyzed.
Equipment Design ; Robotics ; instrumentation ; methods ; Surgery, Computer-Assisted ; instrumentation ; methods ; Vascular Surgical Procedures

OBJECTIVETo establish an instant determination method of emodin, aloe-emodin and rhein, from Rheum, and one of their preparations, Qinghai Wild Dahuang Tea, by micellar electrokinetic capillary electrophoresis for the first time.

METHODSeparation was carried out in an uncoated fused silica capillary (75 microm x 50.0 cm). Meanwhile, a running voltage 20 kV, 15.0 mmol x L(-1) borax buffer with 30.0 mmol x L(-1) SDS and 10% ethanol (pH 9.60) and a UV detector at 254 nm were adopted.

RESULTThe linear calibration rang was 4-120 mg x L(-1) (r = 0.992 1) for emodin, 10-200 mg x L(-1) (r = 0.997 0) for aloe-emodin, and 2-100 mg x L(-1) (r = 0.997 1) for rhein, respectively. Under the optimum conditions, the relative standard deviation (RSD) values (n = 6) for the migration time and the peak area of each peak were 0.59%-0.80%, 1.30%-3.22%, respectively. The contents of the analytes were easily determined with recoveries ranging from 97.6%-102.3%.

CONCLUSIONThe method is proved to be simple, rapid and accurate, and can be used for the quality control of medicinal herb, Rheum, and its tea preparation.

Anthraquinones ; analysis ; Chromatography, Micellar Electrokinetic Capillary ; methods ; Emodin ; analysis ; Plant Preparations ; chemistry ; Plants, Medicinal ; chemistry ; Rheum ; chemistry

To learn reading respiratory waveform and ring is a key step to good use of respirator, which will help clinicians to analyze the status of the use of respirator and real time changes in patient's lung mechanics from the changes of respiratory wave and ring, for making use of respirator reasonably, scientifically and objectively to provide advanced methods. This article only explains the physical basis of respiratory wave and ring.
Respiration ; Respiration, Artificial ; methods ; Respiratory Mechanics