Graphite ; Humans ; Spectrophotometry, Atomic ; methods ; Thallium ; urine

Falling in the elderly is a major health problem and may cause severe consequences. Fall risk assessment is important for preventing and intervening fall incidence. Inertial Measurement Unit (IMU) has been introduced to evaluate motion/balance function and fall risk among the older people. Some researches indicated that it might have advantages over the usual tools, and can be used in the hospitals, communities, nursing homes, etc. IMU is a good way to measure gait variability, which may be strongly related with the risk of falls.

Objective To explore the therapeutic effects of Ni-Ti memory alloy embracing fixator on the multiple fracture of ribs and flail chest. Method From January 2006 to December 2009, the effects of operation and long-term follow-up after internal fixation operation with memory alloy embracing fixator in patients with multiple fracture of ribs and flail chest were observed. Results The hospital stay of patients treated with memory alloy embracing fixator was 10.31 ± 3.14 days and pain was significantly reheved after treatment ( P= 0.02) .The rate of post-operative complications was 17.65% such as atelectasis, pulmonary infection, etc. There were fewer longterm complications and less influence to daily activity of life. Conclusions It is a advanced and practical method for patients with the multiple fracture of ribs by using Ni-Ti memory alloy embracing fixator with slighter trauma,simple, safe, reliable, good histocompatibility and fewer post-operative complications.

MLN4924 can inhibit the proliferation,invasion and metastasis of tumor by inducing tumor cells apoptosis,senescence and autophagy,which can inhibit tumor angiogenesis and enhance the sensitivity of radiotherapy and chemotherapy.Therefore,MLN4924 plays a good anti-tumor effect.

ZJ-XD-I multifunctional internal sterilization machine for medical instrumentation is applied in medical instrumentations with circulatory loop such as anesthetic machine and respirator. The machine can generate ozone and hydrogen peroxide, and then the two gases are mixed and introduced into the internal loop to eliminate adnexed hydrogen peroxide such as the virus and germ, and thus the nosocomial infection due to repeated uses of medical instrumentations. The machine is composed of the gas compression component, atomization unit, gas extraction component, control circuit and the filtrating unit.

Objective To analyze imageology appearance and clinical characteristics of the cystic and solid breast carcinoma.Methods Features of MRI and B-type ultrasonic inspection of 26 patients with the cystic and solid breast carcinoma pathologically confirmed (15 patients with mucinous carcinoma,6 patients with intracystic papillary carcinoma,5 patients with squamous cell carcinoma of the breast) were retrospectively reviewed.Results In terms of clinical appearance,the incidence of the squamous cell breast carcinoma with an average age of 70.1 years old was larger than in youth,while mucinous carcinoma with an average age of 67.7 years old and intracystic carcinoma of breast with an average age of 55.1 years old were contrary.The squamous cell breast carcinoma developed more quickly than mucinous carcinoma and intracystic carcinoma of breast.The squamous cell breast carcinoma often occurred around mammilla (4/5),while the mucinous carcinoma and intracystic papillary carcinoma often occurred upper outer quadrant of breast,which was similar with other breast cancer.The average size of 49.6 mm in the squamous cell breast carcinoma was largest than the average size of 25.1 mm in mucinous carcinoma and the average size of 35.2 mm in intracystic papillary carcinoma.The malignant degree of squamous cell breast carcinoma was higher than mucinous carcinoma and intracystic papillary carcinoma,which intended to occur lymph node metastasis and skin infiltration.The diagnosis probability of mucinous carcinoma was smaller than intracystic papillary carcinoma through preoperative puncture,while squamous cell breast carcinoma was larger.On the MRI imageology appearance,both types of breast cancer had the same shape of rotundity or lobulated.The tumors were low signal on T1WI and partially high signal on T2WI,which were circular enhancement after enhancement.However,the edge of mucinous carcinoma and squamous cell breast carcinoma was rougher than intracystic papillary carcinoma compared with squamous cell breast carcinoma.The bursa wall of mucinous carcinoma was more uniformity,while papillary soft tissue image can be found in intracystic papillary carcinoma,which was enhanced significantly after enhancement.In terms of ultrasonic sound (US),there were low echo signal and high echo signal on the back of tumor compared with other breast tumor.There were shadow beside mucinous carcinoma.Squamous cell breast carcinoma was rich in blood supply,while mucinous carcinoma and intracystic papillary carcinoma were opposite.Conclusion Histological type of cystic and solid breast carcinoma is complex,but the appearances of MRI and US have some characteristics.Histological type and the range of disease could be guessed through the combination of preoperative puncture and clinical appearance,which plays an important role in operation mode and treatment guidance.

Objective To observe the effect and mechanism of Pingwei Xiaodao Capsule (Capsule for functional dyspepsia) on the gastric motility of functional dyspepsia (FD) model rats.Methods Totally 60 wistar rats were randomized into a blank control group (normal group),model group,domperidone group,Pingwei Xiaodao Capsule large,medium,and small dosage groups.Except for the normal group,the rats of all other groups were irritated by clamping tails for making FD models.Then,the treatment was given for 7 days.The comparative observation was carried out on the gastric interdigestive myoelectric complex (IMC),slow wave frequency variation coefficient,abnormal rhythm index,and gastric emptying rate of all groups.Results Compared with the model group,the IMC period of domperidone group and all Pingwei Xiaodao Capsule groups was shortened,phase Ⅲ prolonged,incidence of phase Ⅲ increased(P

The paper reported an investigation of the pharmacokinetics of SN-38 (7-ethyl-10-hydroxy-camptothecin) in rats and the tissue distribution in mice after injection of irinotecan hydrochloride nanoparticles (CPT-11) via tail veins. An LC-MS/MS method was established to determine the concentrations of SN-38 in whole blood of rats and in different tissues of mice. The pharmacokinetics and tissue distribution of SN-38 were compared after the intravenous injection of CPT-11 NPs and CPT-11 solution. Compared with irinotecan solution, the elimination half-life of SN-38 was prolonged from 2.17 h to 2.67 h after the intravenous injection of CPT-11 NPs, but its AUC had little change. After the injection of CPT-11 NPs in mice, over time, the concentrations of CPT-11-metabolized SN-38 in CPT-11 NPs were significantly higher in the whole blood, colon and lungs than those in CPT-11 solution, followed by in the spleen and liver, but those in the heart and brain had no change. However, the amount of SN-38 in the kidneys was reduced with time. CPT-11 NPs could prolong SN-38's (one of its metabolites) blood circulation time in rats and significantly increased the concentration of CPT-11-metabolized SN-38 in the whole blood, colon and lungs of mice. CPT-11 NPs made SN-38 efficiently target-bind to the colon and lungs of mice.
Animals ; Antineoplastic Agents, Phytogenic ; pharmacokinetics ; Camptothecin ; analogs & derivatives ; pharmacokinetics ; Chromatography, Liquid ; Colon ; metabolism ; Half-Life ; Injections, Intravenous ; Lung ; metabolism ; Mice ; Nanoparticles ; administration & dosage ; Rats ; Tandem Mass Spectrometry ; Tissue Distribution

Objective To investigate the effects of pioglitazone on atrial ionic channel remodeling in alloxan-induced diabetic rabbit models.Methods A total of 32 rabbits were randomly (random number) divided into control (CN) group,diabetes mellitus (DM) group,diabetes mellitus + pioglitazone 4 mg/ (d · kg) (DPG) group and diabetes mellitus + double pioglitazone 8 mg/ (d · kg) (DPI) group.The diabetic state was examined by quantitative determination of blood glucose levels of ≥ 14 mmol/L.Langendorff-perfused rabbit hearts were used to isolate single atrial myocyte,and whole-cell patch-clamp technique was used to record action potential duration (APD) and atrial ionic channel currents (ICa,L and INa).Variables with normal distribution were compared with One-way ANOVA and LSD-t test.Results Compared with controls,APD90 and APDS0 of left atrial myocytes were significantly prolonged in DM group (P ＜0.05 vs.CN),and there was no significant difference in APD90 frequency adaptation between them (P ＞0.05 vs.CN).The densities of INa were reduced and the densities of ICa,L were increased in DM group (P ＜ 0.01 vs.CN).The above variables were markedly attenuated in DPG and DPI group.Conclusions Pioglitazone may inhibits atrial ionic channel remodeling in diabetic rabbit models.