Survival function
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Transfusion, ISSN 0041-1132 vol. 46, 8S, suppl., August 2006
42 s. : il., tab. ; 28 cm
- MeSH
- krevní proteiny fyziologie MeSH
- Papio krev MeSH
- počet erytrocytů MeSH
- počet trombocytů MeSH
- převod jednotlivých krevních složek MeSH
- transfuze erytrocytů MeSH
- transfuze trombocytů MeSH
- viabilita buněk MeSH
- Konspekt
- Patologie. Klinická medicína
- NLK Obory
- hematologie a transfuzní lékařství
- NLK Publikační typ
- studie
... Contents -- Preface xi -- 1 Introduction to Regression Modeling of Survival Data 1 -- 1.1 Introduction ... ... Data 16 -- 2.1 Introduction, 16 -- 2.2 Estimating the Survival Function, 17 -- 2.3 Using the Estimated ... ... Survival Function, 27 -- 2.4 Comparison of Survival Functions, 44 -- 2.5 Other Functions of Survival ... ... Times, 85 -- 3.5 Estimating the Survival Function of the Proportional Hazards Regression Model, 87 - ... ... Function, 121 -- Exercises, 130 -- 5. ...
Wiley series in probability and statistics
Second edition xiii, 392 stran : ilustrace, tabulky, grafy ; 24 cm.
- Konspekt
- Kombinatorika. Teorie grafů. Matematická statistika. Operační výzkum. Matematické modelování
- NLK Obory
- přírodní vědy
- NLK Publikační typ
- kolektivní monografie
- MeSH
- časové faktory MeSH
- dárci tkání MeSH
- dospělí MeSH
- lidé středního věku MeSH
- lidé MeSH
- přežívání štěpu MeSH
- transplantace ledvin fyziologie imunologie MeSH
- uchovávání orgánů MeSH
- věkové faktory MeSH
- výběr pacientů MeSH
- Check Tag
- dospělí MeSH
- lidé středního věku MeSH
- lidé MeSH
- Publikační typ
- srovnávací studie MeSH
c-Jun N-terminal kinases (JNK) can be activated by multiple environmental stress, leading to varied and contradictory cellular response. JNK mediates cell apoptosis as well as cell survival and proliferation. JNK1 and JNK2 as the major members are able to perform similar and distinct biological functions. This review mainly discussed the mechanism of JNK cell survival function and the distinct roles of JNK1 and JNK2 in cell apoptosis and proliferation. Transient JNK activation may be important for mediating a survival response in TNF-treated cells and chronic JNK activation may contribute to apoptotic response. Other signal transduction pathways may also participate in its protective function. Abrogation of p38 MAPK pathway is assumed to induce pro-survival role. JNK suppresses apoptosis via phosphorylation of the pro-apoptotic Bcl-2 family protein BAD. Activated JNK inactivates suppressors of the apoptotic machinery, thereby “breaking the brake” on apoptosis.
- MeSH
- apoptóza * fyziologie MeSH
- lidé MeSH
- MAP kinasa-kinasa 4 * MeSH
- mitogenem aktivovaná proteinkinasa 8 MeSH
- mitogenem aktivovaná proteinkinasa 9 MeSH
- proliferace buněk MeSH
- signální transdukce MeSH
- viabilita buněk * fyziologie MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- práce podpořená grantem MeSH
- přehledy MeSH
INTRODUCTION: Pirfenidone, an antifibrotic drug, slows-down the disease progression in idiopathic pulmonary fibrosis (IPF) over 12 months, however limited data on the decline of lung function and overall survival (OS) in real-world cohorts on longer follow-up exists. PATIENTS/METHODS: Of the enrolled Czech IPF patients (n = 841) from an EMPIRE registry, 383 (45.5%) received pirfenidone, 218 (25.9%) no-antifibrotic treatment and 240 (28.5%) were excluded (missing data, nintedanib treatment). The 2- and 5-yrs OS and forced vital capacity (FVC) and diffusing lung capacity for carbon monoxide (DLCO) were investigated at treatment initiation and 6, 12, 18 and 24 months' follow-up. RESULTS: During a 2-yr follow-up, less than a quarter of the patients progressed on pirfenidone as assessed by the decline of ≥10% FVC (17.0%) and ≥ 15% DLCO (14.3%). On pirfenidone, the DLCO (≥10%) declines at 6, 12, 18 and 24 months' and DLCO (≥15%) declines at 6, 18 and 24 months' follow-up were associated with increased mortality. The DLCO decline showed higher predictive value for mortality than FVC decline. In patients with no-antifibrotics, FVC and DLCO declines were not predictive for mortality. Pirfenidone increased 5-yrs OS over no-antifibrotic treatment (55.9% vs 31.5% alive, P = 0.002). CONCLUSION: Our study observed the 2-yrs sustained effect of pirfenidone on the decline of lung function and survival in the real-world patient's IPF cohort. DLCO decline of ≥10% shows a potential as a mortality predictor in IPF patients on pirfenidone, and should be routinely evaluated during follow-up examinations.
- MeSH
- antiflogistika nesteroidní farmakologie terapeutické užití MeSH
- idiopatická plicní fibróza diagnóza farmakoterapie epidemiologie MeSH
- kohortové studie MeSH
- lidé středního věku MeSH
- lidé MeSH
- míra přežití trendy MeSH
- následné studie MeSH
- progrese nemoci * MeSH
- pyridony farmakologie terapeutické užití MeSH
- registrace * MeSH
- respirační funkční testy trendy MeSH
- senioři MeSH
- vitální kapacita účinky léků fyziologie MeSH
- výsledek terapie MeSH
- Check Tag
- lidé středního věku MeSH
- lidé MeSH
- mužské pohlaví MeSH
- senioři MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- Geografické názvy
- Česká republika MeSH
Fluid accumulation is associated with adverse outcomes in critically ill patients. Here, we sought to determine if fluid accumulation is associated with mortality and non-recovery of kidney function in critically ill adults with acute kidney injury. Fluid overload was defined as more than a 10% increase in body weight relative to baseline, measured in 618 patients enrolled in a prospective multicenter observational study. Patients with fluid overload experienced significantly higher mortality within 60 days of enrollment. Among dialyzed patients, survivors had significantly lower fluid accumulation when dialysis was initiated compared to non-survivors after adjustments for dialysis modality and severity score. The adjusted odds ratio for death associated with fluid overload at dialysis initiation was 2.07. In non-dialyzed patients, survivors had significantly less fluid accumulation at the peak of their serum creatinine. Fluid overload at the time of diagnosis of acute kidney injury was not associated with recovery of kidney function. However, patients with fluid overload when their serum creatinine reached its peak were significantly less likely to recover kidney function. Our study shows that in patients with acute kidney injury, fluid overload was independently associated with mortality. Whether the fluid overload was the result of a more severe renal failure or it contributed to its cause will require clinical trials in which the role of fluid administration to such patients is directly tested.
- MeSH
- akutní poškození ledvin patologie terapie MeSH
- edém mortalita MeSH
- financování organizované MeSH
- kritický stav MeSH
- lidé středního věku MeSH
- lidé MeSH
- míra přežití MeSH
- obnova funkce MeSH
- odds ratio MeSH
- prospektivní studie MeSH
- tělesná hmotnost MeSH
- tělesné tekutiny MeSH
- vodní a elektrolytová rovnováha MeSH
- Check Tag
- lidé středního věku MeSH
- lidé MeSH
- mužské pohlaví MeSH
- ženské pohlaví MeSH
- Publikační typ
- multicentrická studie MeSH
Aim: This paper focuses on the use of censored data in survival analysis. Survival analysis is used most frequentlyin the case of cancer patients when the study is fi nished and a number of individuals are still alive. The original articlecited2 was declared recently to be the most cited statistical study in the biomedical area. The goal of this paper is toexplain the basic principles and methods involved. The way survival analysis processes data and interprets outputs ispresented using the clinical data of oncological patients.Methods and Results: Survival analysis is used to estimate survivor function from survival data, to compare survivorfunctions and to assess the relationship of explanatory variables to survival time. These methods were applied to thedata of 176 patients with heamato-oncological diagnoses who had undergone bone marrow blood transplant.Conclusion: It is very important to use appropriate methods when processing statistical data. Standard statisticalprocedures used for incomplete data could not provide the correct estimation.
- MeSH
- analýza přežití MeSH
- financování organizované MeSH
- hematologické nádory diagnóza epidemiologie MeSH
- interpretace statistických dat MeSH
- Kaplanův-Meierův odhad MeSH
- lékařská onkologie metody statistika a číselné údaje trendy MeSH
- lidé MeSH
- proporcionální rizikové modely MeSH
- sběr dat metody využití MeSH
- statistika jako téma MeSH
- Check Tag
- lidé MeSH
- MeSH
- dárci tkání MeSH
- ledviny fyziologie MeSH
- lidé MeSH
- míra přežití MeSH
- multivariační analýza MeSH
- přežívání štěpu genetika MeSH
- transplantace ledvin MeSH
- transplantace kontraindikace MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- kongresy MeSH
Nephrology, dialysis, transplantation, ISSN 0931-0509 vol. 19, suppl. 6, December 2004
22 s. : grafy ; 28 cm
- MeSH
- diabetes mellitus etiologie prevence a kontrola MeSH
- imunosupresiva terapeutické užití MeSH
- přežití MeSH
- přežívání štěpu MeSH
- takrolimus terapeutické užití MeSH
- transplantace ledvin škodlivé účinky MeSH
- transplantace škodlivé účinky MeSH
- Publikační typ
- sborníky MeSH
- Konspekt
- Patologie. Klinická medicína
- NLK Obory
- nefrologie