130 research outputs found
Nursing Activity Sensing Using Mobile Sensors and Proximity Sensors
In recent years, big data are utilized in many industries.In this study, in order to analyze duties of thenurses, we performed experiments to collect the dutiesactivity data of the nurses for a long term. Weset 38 nurses as subjects and asked them to carry outduties while attaching a wearable small sensor device,and collected the acceleration data, meeting informationbetween nurses and the nurse duties information.In addition, we collected the location information of the nurses by using infrared information and communication equipment at the same time. From various data collected, we analyzed intensity and positional information of duties activity of the nurse, meeting information and the duties information between nurses and considered the influence that each factor affected to the nurse. As the result, we found that intensity of the activity increases in such nurses as who has many times of meeting with other nurses, visits the patient room many times, or who works on jobs concerning with the assistance of the patients such as rehabilitation assistance duties or the activity assistance dutiesThe 47th ISCIE International Symposium on Stochastic Systems Theory and Its Applications (SSS\u2715), December 5-8, 2015, Waikiki Beach Marriott Resort & Spa, Hawaii, US
Progression of Renal Dysfunction in Patients with Cardiovascular Disease
It has been established that patients with chronic kidney disease (CKD) suffer from frequent cardiovascular events. On the other hand, recent studies suggest that renal damage tends to worsen in patients with cardiovascular diseases (CVD). Although the mechanisms for the cardiorenal association are unclear, the presence of arteriosclerotic risk factors common to both CVD and CKD is important. In arteriosclerosis, vascular derangement progresses not only in the heart but also in the kidney. In addition, heart failure, cardiac catheterization and hesitation of medical treatments due to renal dysfunction may explain the progression of renal damage. Therefore, the goal of treatments is a total control of arteriosclerotic risk factors. Medication should be selected among agents with protective effects on both heart and kidney. It is important to always consider the presence of CKD for the treatment of the cardiovascular disease and strictly control the risk factors
miR-200b Precursor Can Ameliorate Renal Tubulointerstitial Fibrosis
Members of the miR-200 family of micro RNAs (miRNAs) have been shown to inhibit epithelial-mesenchymal transition (EMT). EMT of tubular epithelial cells is the mechanism by which renal fibroblasts are generated. Here we show that miR-200 family members inhibit transforming growth factor-beta (TGF-beta)-induced EMT of tubular cells. Unilateral ureter obstruction (UUO) is a common model of EMT of tubular cells and subsequent tubulointerstitial fibrosis. In order to examine the role of miR-200 family members in tubulointerstitial fibrosis, their expression was investigated in the kidneys of UUO mice. The expression of miR-200 family miRNAs was increased in a time-dependent manner, with induction of miR-200b most pronounced. To clarify the effect of miR-200b on tubulointerstitial fibrosis, we injected miR-200b precursor intravenously. A single injection of 0.5 nM miR-200b precursor was sufficient to inhibit the increase of collagen types I, III and fibronectin in obstructed kidneys, and amelioration of fibrosis was confirmed by observation of the kidneys with Azan staining. miR-200 family members have been previously shown to inhibit EMT by reducing the expression of ZEB-1 and ZEB-2 which are known repressors of E-cadherin. We demonstrated that expression of ZEB-1 and ZEB-2 was increased after ureter obstruction and that administration of the miR-200b precursor reversed this effect. In summary, these results indicate that miR-200 family is up-regulated after ureter obstruction, miR-200b being strongly induced, and that miR-200b ameliorates tubulointerstitial fibrosis in obstructed kidneys. We suggest that members of the miR-200 family, and miR-200b specifically, might constitute novel therapeutic targets in kidney disease
An international study to explore the feasibility of collecting standardised outcome data for Complex Regional Pain Syndrome: Recommendations for an international clinical research registry
Introduction: Complex Regional Pain Syndrome (CRPS) is a persistent pain condition with low prevalence. Multi-centre collaborative research is needed to attain sufficient sample sizes for meaningful studies. This international observational study: (1) tested the feasibility and acceptability of collecting outcome data using an agreed core measurement set (2) tested and refined an electronic data management system to collect and manage the data. Methods: Adults with CRPS, meeting the Budapest diagnostic clinical criteria, were recruited to the study from 7 international research centres. After informed consent, a questionnaire comprising the core set outcome measures was completed: on paper at baseline (T1), and at 3 or 6 months (T2) using a paper or e-version. Participants and clinicians provided feedback on the data collection process. Clinicians completed the CRPS severity score at T1 and optionally, at T2. Ethical approval was obtained at each international centre. Results: Ninety-eight adults were recruited (female n=66; mean age 46.6 years, range 19-89), of whom 32% chose to receive the T2 questionnaire in an electronic format. Fifty-five participants completed both T1 and T2. Eighteen participants and nine clinicians provided feedback on their data collection experience. Conclusion: This study confirmed the questionnaire core outcome data are feasible and practicable to collect in clinical practice. The electronic data management system provided a robust means of collecting and managing the data across an international population. The findings have informed the final data collection tools and processes which will comprise the first international, clinical research registry and data bank for CRPS
Use of the index of pulmonary vascular disease for predicting long-term outcome of pulmonary arterial hypertension associated with congenital heart disease
AimsLimited data exist on risk factors for the long-term outcome of pulmonary arterial hypertension (PAH) associated with congenital heart disease (CHD-PAH). We focused on the index of pulmonary vascular disease (IPVD), an assessment system for pulmonary artery pathology specimens. The IPVD classifies pulmonary vascular lesions into four categories based on severity: (1) no intimal thickening, (2) cellular thickening of the intima, (3) fibrous thickening of the intima, and (4) destruction of the tunica media, with the overall grade expressed as an additive mean of these scores. This study aimed to investigate the relationship between IPVD and the long-term outcome of CHD-PAH.MethodsThis retrospective study examined lung pathology images of 764 patients with CHD-PAH aged <20 years whose lung specimens were submitted to the Japanese Research Institute of Pulmonary Vasculature for pulmonary pathological review between 2001 and 2020. Clinical information was collected retrospectively by each attending physician. The primary endpoint was cardiovascular death.ResultsThe 5-year, 10-year, 15-year, and 20-year cardiovascular death-free survival rates for all patients were 92.0%, 90.4%, 87.3%, and 86.1%, respectively. The group with an IPVD of ≥2.0 had significantly poorer survival than the group with an IPVD <2.0 (P = .037). The Cox proportional hazards model adjusted for the presence of congenital anomaly syndromes associated with pulmonary hypertension, and age at lung biopsy showed similar results (hazard ratio 4.46; 95% confidence interval: 1.45–13.73; P = .009).ConclusionsThe IPVD scoring system is useful for predicting the long-term outcome of CHD-PAH. For patients with an IPVD of ≥2.0, treatment strategies, including choosing palliative procedures such as pulmonary artery banding to restrict pulmonary blood flow and postponement of intracardiac repair, should be more carefully considered
ケツエキ トウセキ カンジャ ノ チョウキ セイメイ ヨゴ ヨソク インシ トシテノ トウセキゴ ノ ケッショウANP ト BNPノウド ノ ユウヨウセイ : 15ネンカン ノ ヨゴ チョウサ
透析患者52人において心胸比を透析前に,収縮期血圧,血清アルブミン,血漿心房性ナトリウム利尿ペプチド(atrial natriuretic peptide ; ANP),脳性ナトリウム利尿ペプチド(brain natriuretic peptide ; BNP),血漿レニン活性(plasma renin activity ; PRA),血漿ノルアドレナリン(plasma noradrenaline ; PNA)濃度を透析直後に測定した.患者は上記測定の中央値で高低2群に分けてKaplan-Meier (KM)生存曲線を求め,両群の比較をLogrank法で行った.生存期間に及ぼす因子解析は測定値を説明変数,生存期間を目的変数としてCox比例hazard法で行った.いずれもp<0.05を有意と判定した. 15年間で43人が死亡し,うち40人が病死であった. KM生存曲線は高年齢群(p<0.001),高ANP群(p=0.006),高BNP群(p=0.039)で有意に生存期間が短く,心胸比,収縮期血圧,血清アルブミン, PRA, PNAにおいては高低2群間に有意差を認めなかった. Cox比例hazard法による単変量解析では年齢(p<0.001),心胸比(p=0.011), ANP (p=0.003), BNP (p=0.002)が生命予後の有意なリスク因子となり,多変量解析ではp値は年齢<0.001,心胸比0.965, ANP 0.055, BNP 0.041となり,年齢とBNPが生命予後の独立したリスク因子であった.以上より透析患者において透析直後の血漿BNP濃度は長期生命予後の独立したリスク因子であり,血漿ANP濃度もリスク因子としてBNPに次いで重要であることが示された.This study was designed to clarify the clinical significance of post-dialysis plasma vasoactive substances including atrial natriuretic peptide (ANP), brain natriuretic peptide (BNP), plasma renin activity (PRA) and noradrenaline (PNA) as a survival predictor in chronic hemo-dialysis (HD) patients. Immediately after HD, blood samples were collected for the measurements of serum albumin, ANP, BNP, PRA and PNA in 52 HD patients. During 15-year follow-up period 43 patients died ; 40 of diseases, 2 accident, 1 suicide. Patients were divided into two groups using the median of their age and clinical and laboratory variables. Kaplan-Meier survival analysis revealed that the groups of older age, higher plasma ANP and BNP concentration had significantly lower survival rates as compared with each counterpart (p<0.001, p=0.006, p=0.039, respectively). Univariate and multivariate Cox proportional hazard regression analyses were used to assess the potential association of their age, and clinical and laboratory variables with a survival rate. As a result of Univariate Cox hazard analysis, age, cardiothoracic ratio (CTR), and plasma ANP, and BNP concentrations had significant relationship with overall mortality (p<0.001, p=0.011, p=0.003, and p=0.002, respectively). However, stepwise multivariate analysis revealed that the significant relationship with overall mortality was shown for their age (p<0.001) and BNP (p=0.041). These results demonstrated that the post-dialysis plasma BNP concentration was an independent risk factor for long-term survival and the post-dialysis plasma ANP concentration was also an important risk factor next to the BNP concentration
Nicorandil Attenuates Monocrotaline-Induced Vascular Endothelial Damage and Pulmonary Arterial Hypertension
Background: An antianginal K ATP channel opener nicorandil has various beneficial effects on cardiovascular systems; however, its effects on pulmonary vasculature under pulmonary arterial hypertension (PAH) have not yet been elucidated. Therefore, we attempted to determine whether nicorandil can attenuate monocrotaline (MCT)-induced PAH in rats. Materials and Methods: Sprague-Dawley rats injected intraperitoneally with 60 mg/kg MCT were randomized to receive either vehicle; nicorandil (5.0 mg?kg 21?day 21) alone; or nicorandil as well as either a KATP channel blocker glibenclamide or a nitric oxide synthase (NOS) inhibitor N v-nitro-L-arginine methyl ester (L-NAME), from immediately or 21 days after MCT injection. Four or five weeks later, right ventricular systolic pressure (RVSP) was measured, and lung tissue was harvested. Also, we evaluated the nicorandil-induced anti-apoptotic effects and activation status of several molecules in cell survival signaling pathway in vitro using human umbilical vein endothelial cells (HUVECs). Results: Four weeks after MCT injection, RVSP was significantly increased in the vehicle-treated group (51.064.7 mm Hg), whereas it was attenuated by nicorandil treatment (33.263.9 mm Hg; P,0.01). Nicorandil protected pulmonary endothelium from the MCT-induced thromboemboli formation and induction of apoptosis, accompanied with both upregulation of endothelial NOS (eNOS) expression and downregulation of cleaved caspase-3 expression. Late treatment with nicorandil for the established PAH was also effective in suppressing the additional progression of PAH. These beneficia
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