Results 41 to 50 of about 101,166 (275)

Estudo quantitativo das células de Langerhans em carcinomas basocelulares com maior e menor potencial de agressividade local Quantitative study of Langerhans cells in basal cell carcinoma with higher or lower potential of local aggressiveness

open access: yesAnais Brasileiros de Dermatologia, 2010
FUNDAMENTOS - O carcinoma basocelular localiza-se principalmente em áreas expostas ao sol, apresentando formas clínicas e histológicas diferentes, algumas com grande e outras com pequena agressividade local. Células de Langerhans participam ativamente do
Itamar Santos   +3 more
doaj   +1 more source

A Local Counter-Regulatory Motif Modulates the Global Phase of Hormonal Oscillations [PDF]

open access: yes, 2016
Counter-regulatory elements maintain dynamic equilibrium ubiquitously in living systems. The most prominent example, which is critical to mammalian survival, is that of pancreatic {\alpha} and {\beta} cells producing glucagon and insulin for glucose homeostasis.
arxiv   +1 more source

The Origin of Langerhans Cells

open access: yesJournal of Investigative Dermatology, 1980
Langerhans cells constitute a morphologically well-characterized subpopulation (3--8%) of mammalian epidermal cells and, in contrast to the bulk of epidermal cells, bear Fc-IgG and C3 receptors, express immune response associated (Ia) antigens, and function as antigen presenting cells and allogeneic stimulatory cells to primed T lymphocytes.
Kunihiko Tamaki   +2 more
openaire   +3 more sources

Langerhans cell histiocytosis presenting as a blueberry muffin rash

open access: yesDermatology Reports, 2023
Langerhans cells, often referred to as the “macrophages of the skin”, are dendritic cells that normally reside in the epidermis and papillary dermis. Just like macrophages, they function as antigen-presenting cells that activate naive T cells.
Shahad F. Alanazi   +5 more
doaj   +1 more source

Langerhans Cell Histiocytosis

open access: yesSurvey of Ophthalmology, 2008
Langerhans cell histiocytosis (LCH) is an inflammatory myeloid neoplasia characterized by accumulation of clonal CD1a-positive immature dendritic cells (LCH cells) accompanied by infiltration of various inflammatory cells such as eosinophils, lymphocytes, macrophages, and osteoclast-like multinuclear giant cells.
Department of Ophthalmology and Pathology, University of South Florida, College of Medicine, and Section of Ophthalmology James A. Haley Veterans Hospital, Tampa, Florida, USA ( host institution )   +2 more
openaire   +6 more sources

Influência do uso de anticoncepcionais hormonais orais sobre o número de células de Langerhans em mulheres com captura híbrida negativa para papilomavírus humano Langerhans' cells: influence of the of oral contraceptives by women with negative hybrid capture for human papillomavirus

open access: yesRevista Brasileira de Ginecologia e Obstetrícia, 2005
OBJETIVO: estudar a influência do uso de anticoncepcionais orais (AO) sobre o número de células de Langerhans em mulheres sem infecção cervical por papilomavírus humano (HPV).
Nelson Shozo Uchimura   +4 more
doaj   +1 more source

Physical Confinement and Cell Proximity Increase Cell Migration Rates and Invasiveness: A Mathematical Model of Cancer Cell Invasion through Flexible Channels [PDF]

open access: yes, 2022
Cancer cell migration between different body parts is the driving force behind cancer metastasis, which is the main cause of mortality of patients. Migration of cancer cells often proceeds by penetration through narrow cavities in locally stiff, yet flexible tissues. In our previous work, we developed a model for cell geometry evolution during invasion,
arxiv   +1 more source

On the coherent behavior of pancreatic beta cell clusters [PDF]

open access: yes, 2014
Beta cells in pancreas represent an example of coupled biological oscillators which via communication pathways, are able to synchronize their electrical activity, giving rise to pulsatile insulin release. In this work we numerically analyze scale free self-similarity features of membrane voltage signal power density spectrum, through a stochastic ...
arxiv   +1 more source

Pathophysiology of Langerhans cells

open access: yesJournal of Oral and Maxillofacial Pathology, 2012
Langerhans cells (LCs) were first described by Paul Langerhans, in 1868, as dendritically shaped cells, which were located in the squamous epithelia of epidermis. Later on, these cells were identified in all stratified squamous epithelium of mammals. Dendritic cells (DCs) play an important role in local defense mechanisms in the epithelium.
Shweta Jaitley, TR Saraswathi
openaire   +4 more sources

Evaluation of serum miR‐216a and miR‐375 as biomarkers in dogs with acute pancreatitis

open access: yesJournal of Veterinary Internal Medicine, Volume 37, Issue 1, Page 92-100, January/February 2023., 2023
Abstract Background Serum microRNAs have emerged as biomarkers of various diseases. Overexpression of serum miR‐216a and miR‐375 occurs in dogs with experimentally induced acute pancreatitis (AP). Objectives To identify the possibility of using serum miR‐216a and miR‐375 as biomarkers for the diagnosis and evaluation of treatment response in dogs with ...
Dohee Lee   +7 more
wiley   +1 more source

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