Results 81 to 90 of about 600,981 (261)

Indian hedgehog (Ihh) both promotes and restricts thymocyte differentiation [PDF]

open access: yes, 2009
We show that Indian Hedgehog (Ihh) regulates T-cell development and homeostasis in both fetal and adult thymus, controlling thymocyte number. Fetal Ihh-/- thymi had reduced differentiation to double-positive (DP) cell and reduced cell numbers compared ...
Outram, Susan V   +17 more
core   +1 more source

P53 mutations in human adrenocortical neoplasms [PDF]

open access: yes, 1994
The mechanisms of tumorigenesis of adrenocortical neoplasms have not been elucidated as yet. However, loss of heterozygosity at chromosomal locus 17p has been consistently observed in adrenocortical cancer.
Travis, W.   +6 more
core   +1 more source

Adaptive Immunity in Marsupials

open access: yesJournal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.
Comparison of the marsupial and eutherian adaptive immune systems. ABSTRACT Marsupials diverged from eutherian mammals 125–160 million years ago. Although evolutionarily distinct, both groups of mammals can produce complex adaptive immune responses to antigens with several key differences.
Cassandra L. Jol   +2 more
wiley   +1 more source

Mucinous Neoplasms

open access: yes, 2014
Although interest in pancreatic pathology is very high in the radiological and gastroenterological communities, it is still the case that less is known about pathology of the pancreas than about liver pathology, for example.
D'ONOFRIO, Mirko   +15 more
core   +1 more source

Heterogeneity Analyzed by CT‐Based Habitat Analysis for Clinical Management of Cancers: A Narrative Review

open access: yesThe Kaohsiung Journal of Medical Sciences, EarlyView.
ABSTRACT Tumors are highly heterogeneous, and whole‐lesion radiomics analysis is a popular method for extracting texture features that reflect this heterogeneity, which can be used to build models for cancer diagnosis, staging, therapy response evaluation, and prognosis prediction.
Yang Zhang   +2 more
wiley   +1 more source

Avaliação do uso de extrato de timo (timulina) em pacientes com neoplasia maligna submetidos ao tratamento cirúrgico

open access: yesRevista do Colégio Brasileiro de Cirurgiões
OBJETIVO: Avaliar a ação da timulina em pacientes com neoplasia maligna, submetidos ao tratamento, com e sem quimioterapia e radioterapia complementar (QT/RT).
Célia Regina de Oliveira Garritano
doaj   +1 more source

A Rare Tumor with a Very Rare Initial Presentation: Thymic Carcinoma as Bone Marrow Metastasis

open access: yesCase Reports in Pathology, 2017
Tumors of thymus gland are rare and account for 0.2% to 1.5% of all the neoplasms. They constitute a heterogeneous group that has an unknown etiology and a complex as well as varied biology. This has led to difficulty in their histological classification
Sonam Sharma, Leelavathi Dawson
doaj   +1 more source

Timoma do mediastino médio: relato de caso Middle mediastinal thymoma: case report

open access: yesBrazilian Journal of Cardiovascular Surgery, 2005
Paciente do sexo feminino, 55 anos, branca, com sinais clínicos sugestivos de miastenia gravis há aproximadamente 3 meses. A prova terapêutica com neostigmina evidenciou melhora da disfagia e ptose palpebral.
Elias Kallás   +3 more
doaj   +1 more source

Data‐Independent Acquisition Mass Spectrometry in Tumor Classification and Cancer Biomarker Research

open access: yesMass Spectrometry Reviews, EarlyView.
Abstract Cancer treatment is far from optimal also because current classification systems do not reflect the complex molecular status of the tumor and its phenotype in sufficient detail. To construct molecular tumor classifiers, omics tools provide complex molecular data reflecting many aspects from genotype to phenotype.
Jan Simonik   +3 more
wiley   +1 more source

MALIGNANCIES OF THE THYMUS [PDF]

open access: yes, 2014
: The role of radiotherapy in the treatment of thymoma and thymic carcinoma has been evaluated by many investigators over the past two decades. The low incidence of these neoplasms has limited most published studies to small series spanning long time ...
Radiotherapy For Thymic Neoplasms   +1 more
core  

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