The present study was aimed at the optimal solution of the main muscular force distribution in the lower extremity during standing balance of human. The movement musculoskeletal system of lower extremity was simplified to a physical model with 3 joints and 9 muscles. Then on the basis of this model, an optimum mathematical model was built up to solve the problem of redundant muscle forces. Particle swarm optimization (PSO) algorithm is used to calculate the single objective and multi-objective problem respectively. The numerical results indicated that the multi-objective optimization could be more reasonable to obtain the distribution and variation of the 9 muscular forces. Finally, the coordination of each muscle group during maintaining standing balance under the passive movement was qualitatively analyzed using the simulation results obtained.
Algorithms ; Gait ; Humans ; Joints ; Models, Biological ; Models, Theoretical ; Movement ; Muscles ; physiology ; Postural Balance

Hypertriglyceridemia is one of the clinical manifestations of hypothyroidism.Besides regulating thyroid hormone axis,thyroid stimulating hormone (TSH) also has the effect on up-regulated expression of inflammatory cytokines.Synthesis of inflammatory factors can promote the expression of apolipoprotein B48 (ApoB48) in intestinal mucosal epithelial cells,suggesting that TSH may up-regulate the expression of ApoB48 by inducing inflammation; while theoratically,low-level of thyroid hormones can inhibit the synthesis of ApoB48.At the same time,since ApoB48 is the important cause of hypertriglyceridemia,there is a contradiction that it is difficult to explain the clinical phenomenon of hypertriglyceridemia induced by hypothyroidism.Therefore,hypothyroidism may affect the expression of ApoB48 by high level of TSH and low level of thyroid hormones,leading to hypertriglyceridemia.

Objective To study the association between platelet distribution width (PDW) and other indexes in coronary heart disease (CHD) patients with heart failure (HF).Methods Five hundred and ninety-one CHD patients with HF were divided into control group with their NT-proBNP＜300 ng/L (n=228),mild HF group with their NT-proBNP=300-3000 ng/L (n=191),and severe HF group with their NT-proBNP＞3000 ng/L(n=172).Their blood and echocardiographic parameters were recorded.Results The PDW was significantly shorter in 3 groups after treatment than before treatment (0.129±0.031 vs 0.133±0.027,0.133±0.030 vs 0.141± 0.029,0.139±0.028 vs 0.148±0.029,P＜0.05,P＜0.01),and was significantly longer in mild HF group and severe HF group than in control group and in severe HF group than in mild HF group after tgreatment (P＜0.05,P＜0.01).Multivariate stepwise regression analysis showed that PDW was positively associated with NT-proBNP and LAD (P=0.001,P=0.000) and negatively associated with LVEF (P=0.003).Conclusion PDW increases with the severity of HF in CHD patients and can thus play an auxiliary role in assessing the severity of their HF.

As the dressings currently used in clinic settings unflat shape in general, they can't be fitted completely on occiput, heel, elbow, knee and other body parts unflat. This paper developed one kind of foam dressing of special shape based on local anatomy. The foam dressing is waterproof and air permeable, it can cover the wound closely enough to prevent bacteria from invasion and infection. With a saturated absorption ratio of 1: 8 or higher, it can keep the wound clean and moisture by absorbing large amounts of wound inflammatory secretions and is almost completely permeable to oxygen and carbon dioxide. Assuring safety and effect meanwhile, it has better outcomes than common dressings in the same application settings.
Bandages ; Wound Healing

Objective To explore the efficacy of saxagliptin in the treatment of failed glycemic control of patients with type 2 diabetes mellitus on the basis of established treatments.Methods 172 cases of failed glycemic control of patients with type 2 diabetes mellitus from June 2013 to December 2014 in department of endocrinology of the first hospital of Ningbo were selected and received health education of 8 weeks, then received saxagliptin on the basis of established treatments for a consecutive treatment of 12 weeks.The HbA1c, fasting blood glucose ( FBG), 2-hours postprandial blood glucose (2hPBG), body mass index (BMI), insulin dosage and adverse event were observed.Results The FBG,HbA1c and 2hPBG after treatment of 12 weeks were significantly lower than those pre-treatment[(7.1 ±2.0)vs.(8.3 ±1.6)mmol/L,(10.2 ±2.3)vs.(15.2 ±2.9)mmol/L,(7.0 ±1.5) vs.(8.0 ±1.7)%], with significant difference (all P <0.05), while there was no significant difference in BMI between pre-and post-treatment [(24.4 ±3.0)vs.(24.9 ±2.7)kg/m2].The insulin dose after treatment of 12 weeks was significantly lower than that pre-treatment[(22.6 ±7.9)vs. (32.3 ±8.2) U/d], with significant difference (P <0.05).There were two patients dropout because of the intolerable digestive tract symptom. Conclusion The adding of saxagliptin could control FBG,2hPBG and HbA1c effectively and decrease insulin dose, without gaining weight in the treatment of failed glycemic control of patients with type 2 diabetes mellitus on the basis of established treatments.

This paper analyzed current problems and challenges facing hospitals in alarm management both abroad and at home. Based on a survey conducted on alarm management in hospitals, plus an analysis on different kinds of data interfaces and data exchange protocols of the medical equipment used in ICUs, a solution of alarm management is put forwarded which is based on alarm information integration and processing. It aims at improving medical equipment alarm management and reducing relevant adverse events.
Automatic Data Processing ; Clinical Alarms ; Intensive Care Units

Aged ; Coronary Artery Bypass, Off-Pump ; methods ; Coronary Artery Disease ; surgery ; Female ; Humans ; Male ; Retrospective Studies ; Treatment Outcome

Objective To explore clinical characteristics of severe pre-eclampsia and eclampsia complicated with reversible posterior leukoencephalopathy syndrome(RPLS).Methods Clinical data of 31 cases of severe pre-eclampsia and eclampsia complicated with RPLS were studied retrospectively.ResulIs These 31 cases with RPLS accounted for 48% of those with eclampsia,.and all presented with hypertension,headache and disturbalice of vision,24 cases with seizure episodes,19 cases with nausea and vomiting and 13 with continuous dysphoria after seizure.Neuroradiologic findings showed edema predominantly in the bilateral posterior cerebral white matter,especially in occipital-parietal lobe,with low density lesions in CT and long T1 and T2 signals in brain MRI. Conclusions Severe pre-eclampsia and eclampsia tended to complicate with RPLS,presenting severe hypertension,headache,disturbance of vision and recurrent seizure as major clinical manifestations.

Objective To study the role of photoallergens and contact allergens in the pathogenesis of chronic actinic dermatitis (CAD).Methods Ba sed on the standard procedures of photopatch test recommended by the British Pho todermatology Group (BPG) and the routine procedures of patch test,photopatch a nd patch tests were performed on 56 patients with CAD,42 patients with polymorp hous light eruption (PLE) and 25 patients with chronic eczema on scalp and face by standard photopatch test series recommended by the International Contact Derm atitis Research Group (ICDRG) and home-made standard series of contact allerge ns.A set of ten Philips TL20W/09N tubes was used as the source of irradiation.Results In the 56 CAD patients,the positive rates were 46.43 %,57.14 % and 32.14% for photopatch test,patch test and both tests,respectively,which appea red to be significantly higher than those in the patients with PLE.Positive pa tch reactions were found in 65% of the patients with chronic eczema,which was s imilar to that of CAD.And the frequency of the positive allergens in chronic ec zema was the same as that in CAD,in which fragrance mixture (FM) ranked the fir st,followed by balsam of Peru (BOP),cobalt chloride,nickel sulphate.In CAD,FM and BOP were the most common allergens and photoallergens,which accounted fo r 44% and 32% of the positive reactions in patch tests,15.38% and 17.95% in pho topatch tests,respectively.Conclusions Both photoallergens and contact aller gens may play important roles in the pathogenesis of CAD.Allergens positive in patch tests and photopatch tests and related compounds which can cause cross-r eactivity with the above allergens should be avoided by the patients with CAD.

Aim To study the effect of Rutoside (Ru) on pancreatic acinar cell apoptosis in rats with acute pancreatitis(AP). Methods The AP model in rats was induced by retrograde injection of 3% sodium taurocholate into biliopancreatic duct. Ru (15, 30 and 60 mg?kg~ -1 ?h~ -1 )was administered by intravenous infusion for 6 hours immediately after the induction of AP.The histopathological changes of pancreas were observed under light microscope and electronic microscope.A terminal deoxynucleotidyl transferase-mediated dUTP-biotion nick end labeling(TUNEL) method was used to detect apotosis of pancreatic acinar cell and apoptosis immunohistochemical method. Results Ru (15, 30 and 60 mg?kg~ -1 ?h~ -1 ) improved the histopathological changes of pancreas significantly.The apotosis index of pancreatic acinar cells was significantly higher than that the AP model group. The gray value of Fas was lower than that of the AP model group. Immuno-staining revealed that moderate to strong FasL immunoreactivity was present in the cytoplasm of the acini of all groups.But in AP model group,the gray value of FasL was lower than that in Ru-treated groups.AI was positively correlated with the gray value of Fas,and was negatively correlated with the gray value of FasL and the severity of pancreas damages. Conclusion The protective effect of Ru on AP may be concerned with the induction of apoptosis in injured pancreatic acinar cells.And the Fas/FasL system may contribute to the process.