Results 51 to 60 of about 24,724 (228)

Single‐cell RNA sequencing revealed the T‐cell heterogeneity and exhaustion subsets of Helicobacter pylori‐induced gastritis‐to‐cancer transformation

open access: yesVIEW, EarlyView.
H. pylori infection is a major cause of stomach cancer, but its effect on immune cells in tumors is unclear. Using single‐cell sequencing, we mapped the stomach tumor environment and discovered a specific exhausted T‐cell subtype, marked by the FYB1 gene, that is abundant in H. pylori‐positive tumors and linked to patient prognosis. Our findings reveal
Yanhui Yang   +22 more
wiley   +1 more source

Murine Models of Gastric Corpus PreneoplasiaSummary

open access: yesCellular and Molecular Gastroenterology and Hepatology, 2017
Intestinal-type gastric adenocarcinoma evolves in a field of pre-existing metaplasia. Over the past 20 years, a number of murine models have been developed to address aspects of the physiology and pathophysiology of metaplasia induction. Although none of
Christine P. Petersen   +2 more
doaj   +1 more source

Amphiregulin-Deficient Mice Develop Spasmolytic Polypeptide Expressing Metaplasia and Intestinal Metaplasia [PDF]

open access: yesGastroenterology, 2009
The loss of parietal cells from the fundic mucosa leads to the emergence of metaplastic lineages associated with an increased susceptibility to neoplastic transformation. Both intestinal metaplasia (IM) and spasmolytic polypeptide (TFF2/SP) expressing metaplasia (SPEM) have been identified in human stomach, but only SPEM is present in most mouse models
Ki Taek, Nam   +6 more
openaire   +3 more sources

Role for Complement C5 in Eosinophilic Inflammation of Severe Asthma

open access: yesAllergy, EarlyView.
Complement activation module, particularly C5, is positively associated with eosinophilic inflammation in severe asthma cohorts. Elevated C5 expression correlates with poor lung function improvement and persistent eosinophilic inflammation. Mouse model studies confirm that C5 exacerbates eosinophilic inflammation, highlighting its potential as a ...
Cong Dong   +217 more
wiley   +1 more source

Endoscopic Classification of Intestinal Metaplasia [PDF]

open access: yesThe Korean Journal of Helicobacter and Upper Gastrointestinal Research, 2013
Intestinal metaplasia (IM) is recognized as a precancerous condition for intestinal type gastric cancer. Therefore, endoscopic diagnosis of IM is valuable for patients undergoing surveillance endoscopy. However, there are no standard endoscopic findings that distinguish it from the normal mucosa.
Byoung Wook Bang, Hyung Gil Kim
openaire   +1 more source

Acetylcholine From Solitary Chemosensory Cell, Not Neuron, Regulates Basal Cell Fate Driving Eosinophilic Chronic Rhinosinusitis With Nasal Polyps

open access: yesAllergy, EarlyView.
This study identifies that Ach levels are elevated in eCRSwNP and primarily released from SCCs rather than neurons. Ach induces epithelial remodeling in eCRSwNP by binding to M1R/M3R and activating YAP signaling in basal cells, driving basal cell hyperplasia and abnormal differentiation. Blocking M1R/M3R with TB inhibits eCRSwNP progression.
Bowen Zheng   +20 more
wiley   +1 more source

hTERT, MYC and TP53 deregulation in gastric preneoplastic lesions

open access: yesBMC Gastroenterology, 2012
Background Gastric cancer is a serious public health problem in Northern Brazil and in the world due to its high incidence and mortality. Despite the severity of the disease, more research is needed to better understand the molecular events involved in ...
Silva Tanielly Cristina   +11 more
doaj   +1 more source

Clinical manifestations of precancerous lesions of the stomach: characteristics and warnings

open access: yesGastroenterologìa, 2020
Background. Chronic gastritis is largely associated with clinical manifestations such as dyspepsia, but often, even in a severe form, it is asymptomatic, which causes difficulties in its timely diagnosis.
I.V. Kushnirenko   +2 more
doaj   +1 more source

Lower Risk of Gastric Atrophy and Intestinal Metaplasia in Patients with MALT Lymphoma despite Infection [PDF]

open access: yesThe Korean Journal of Helicobacter and Upper Gastrointestinal Research, 2019
Background/Aims Atrophic gastritis and intestinal metaplasia are sequential consequences of chronic Helicobacter pylori (H. pylori) infection. These conditions are well known to increase the risk of gastric adenocarcinoma development.
Sang Min Lee   +5 more
doaj   +1 more source

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