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The tumor suppressor gene p53 can mediate transforming growth [corrected] factor beta1-induced differentiation of leukemic cells independently of activation of the retinoblastoma protein

Although the involvement of the tumor suppressor gene p53 in normal hematopoiesis is uncertain, it can give rise to differentiation signals in leukemic cells. It is not clear, however, whether differentiation merely is a consequence of the ability of p53 to arrest cell proliferation or whether hitherto unknown molecular mechanisms are responsible for the p53-mediated differentiation. To further ex

Oral Colonization by Entamoeba gingivalis and Trichomonas tenax : A PCR-Based Study in Health, Gingivitis, and Periodontitis

Background: The etiology of periodontitis remains unclear, as is the place of gingivitis in its pathophysiology. A few studies linked the colonization by oral parasites (Entamoeba gingivalis and Trichomonas tenax) to periodontal disease and its severity. The aim of the current study was to estimate the prevalence of these oral parasites among healthy individuals, and in patients with gingivitis an

On the role of softness in ionic microgel interactions

Thermoresponsive microgels are a popular model system to study phase transitions in soft matter, because temperature directly controls their volume fraction. Ionic microgels are additionally pH-responsive and possess a rich phase diagram. Although effective interaction potentials between microgel particles have been proposed, these have never been fully tested, leading to a gap in our understandin

A Historical Perspective on Ageing and Capability

This chapter discusses the value of a capability approach in historical research on older people. Historians are generally focused on studying continuity and change over time. Their research often aims at explaining how and why certain phenomena appear and take different shapes. Capability is a way of capturing an individual’s ability to live a meaningful life, or a life that they perceive as good

Involvement of the tumor suppressor gene p53 in tumor necrosis factor-induced differentiation of the leukemic cell line K562

The cDNA of the human wild-type p53 tumor suppressor gene was constitutively overexpressed in the leukemic cell line K562 (which lacks detectable amounts of p53 protein) in order to investigate the consequences for growth and differentiation. Several stable clones were established by transfection of the expression vector pc53SN3. Expression of p53 protein was characterized by biosynthetic labeling

PR interval prolongation and 1-year mortality among emergency department patients : A multicentre transnational cohort study

Objectives Emerging evidence supports that PR interval prolongation is associated with increased mortality. However, most previous studies have limited confounder control, and clinical impact in a population of acute ill patients is unknown. The aim of this study was to investigate whether 1-year all-cause mortality was increased in patients presenting with PR interval prolongation in the emergenc

Using the modis sensor for snow cover modeling and the assessment of drought effects on snow cover in a mountainous area

Snow is one of the essential factors in hydrology, freshwater resources, irrigation, travel, pastimes, floods, avalanches, and vegetation. In this study, the snow cover of the northern and southern slopes of Alborz Mountains in Iran was investigated by considering two issues: (1) Estimating the snow cover area and the (2) effects of droughts on snow cover. The snow cover data were monitored by ima

Diagnostik och behandling av fimos hos pojkar kan delegeras

Phimosis in boys is a common condition. In the majority of cases it is physiological without symptoms. Symptomatic phimosis can often be treated successfully with local steroid cream - only a minority of patients need surgery. This study concludes that diagnosis, information to patients and guardians, initiation and follow-up of local steroid treatment can successfully, and safely, be delegated to

Modeling of electric power system in electric vehicles

The market for partly or fully electrified vehicles is expanding fast. The number of sources and loads that are connected to the vehicles traction voltage systems (TVS) increase and thus also the EMC requirements on these sources and loads. These requirements should make sure that neither function nor lifetime of any source or load is severely affected by another. The EMC requirements include both

The biophysical climate mitigation potential of boreal peatlands during the growing season

Peatlands and forests cover large areas of the boreal biome and are critical for global climate regulation. They also regulate regional climate through heat and water vapour exchange with the atmosphere. Understanding how land-atmosphere interactions in peatlands differ from forests may therefore be crucial for modelling boreal climate system dynamics and for assessing climate benefits of peatland

Proteins in deep eutectic solvents : Structure, dynamics and interactions with the solvent

The structure and dynamics of proteins in solution are closely related to their activity and, ultimately, to their performance in products and technologies, for example, drug formulations and enzymatic catalysis. With this in mind, the study of the fundamental behavior of proteins in deep eutectic solvents not only provides insight into a novel alternative to aqueous and molecular organic solvents

Comparative cytological and histological assessment of 828 primary soft tissue and bone lesions, and proposal for a system for reporting soft tissue cytopathology

Introduction: The aim of the study was to evaluate the diagnostic utility of fine needle aspiration (FNA) cytology and core needle biopsies (CNBs) in a series of primary soft tissue and bone lesions and to test a possible system for reporting results of FNA cytology of soft tissue lesion. Methods: This retrospective study encompassed 828 primary soft tissue and bone lesions, analysed with FNA, CNB

Oral contraceptive use and risk of suicidal behavior among young women

Background. Oral contraceptive use has been previously associated with an increased risk of suicidal behavior in some, but not all, samples. The use of large, representative, longitudinally-assessed samples may clarify the nature of this potential association. Methods. We used Swedish national registries to identify women born between 1991 and 1995 (N = 216 702) and determine whether they retrieve