Results 71 to 80 of about 138,916 (331)

Acute intestinal obstruction revealing synchronous gastrointestinal stromal tumors in a small bowel diverticulum and mucinous adenocarcinoma of the colon: a case report

The Pan African Medical Journal, 2015
Gastrointestinalstromal tumors are rare neoplasms and represent 0,1% to 3% of all gastrointestinal cancers. They are the most frequent mesenchymal neoplasms of the gastrointestinal tract with a malignant potential and unpredictable behavior.
El Ochi Mohamed Reda, Jahid Ahmed, El Ktaibi Abderrahim, Znati Kawtar, Zouaidia Fouad, Bernoussi Zakia, Mahassini Najat   +6 more
doaj   +1 more source

Targeting the MDM2‐MDM4 interaction interface reveals an otherwise therapeutically active wild‐type p53 in colorectal cancer

Molecular Oncology, EarlyView.
This study investigates an alternative approach to reactivating the oncosuppressor p53 in cancer. A short peptide targeting the association of the two p53 inhibitors, MDM2 and MDM4, induces an otherwise therapeutically active p53 with unique features that promote cell death and potentially reduce toxicity towards proliferating nontumor cells.
Sonia Valentini, Giada Mele, Marika Attili, Maria Rita Assenza, Fulvio Saccoccia, Francesca Sardina, Cinzia Rinaldo, Roberto Massari, Nicola Tirelli, Alfredo Pontecorvi, Fabiola Moretti   +10 more
wiley   +1 more source

Molecular Biology of Upper Gastrointestinal Neoplasms [PDF]

The Korean Journal of Helicobacter and Upper Gastrointestinal Research, 2012
Neoplasms of the upper gastrointestinal tract are related by location and have distinct clinical and molecular characteristics. Malignancies of the upper gastrointestinal tract are often diagnosed at an advanced stage and are generally associated with a poor patient prognosis.
Joon Sung Kim, Byung-Wook Kim
openaire   +2 more sources

Highly multiplexed digital PCR assay for simultaneous quantification of variant allele frequencies and copy number alterations of KRAS and GNAS in pancreatic cancer precursors

Molecular Oncology, EarlyView.
Combining melting curve analysis enhances the multiplexing capability of digital PCR. Here, we developed a 14‐plex assay to simultaneously measure single nucleotide mutations and amplifications of KRAS and GNAS, which are common driver genes in pancreatic cancer precursors. This assay accurately quantified variant allele frequencies in clinical samples
Junko Tanaka, Tatsuo Nakagawa, Yusuke Ono, Yoshio Kamura, Takeshi Ishida, Hidemasa Kawabata, Kenji Takahashi, Hiroki Sato, Andrew S. Liss, Yusuke Mizukami, Takahide Yokoi   +10 more
wiley   +1 more source

Microglial reprogramming: a potential new frontier in enhancing immunotherapy for melanoma brain metastasis

Molecular Oncology, EarlyView.
Microglia act as tumor suppressors during brain metastasis colonization but shift to a tumor‐promoting role after melanoma brain metastases form. NF‐κB/RelA signaling emerges as a key driver of this phenotypic shift. Targeting this pathway reprograms microglia into a pro‐inflammatory state, enhancing antitumor immunity and immune checkpoint inhibitor ...
Noam Savion‐Gaiger, Dorin Bar‐Ziv, Harriet Kluger   +2 more
wiley   +1 more source

InvNorm: Domain Generalization for Object Detection in Gastrointestinal Endoscopy [PDF]

arXiv, 2022
Domain Generalization is a challenging topic in computer vision, especially in Gastrointestinal Endoscopy image analysis. Due to several device limitations and ethical reasons, current open-source datasets are typically collected on a limited number of patients using the same brand of sensors. Different brands of devices and individual differences will
arxiv  

Tryptophan‐sensing receptor GPR142 expression levels are directly regulated by proinflammatory cytokines in ghrelin‐producing cells

FEBS Open Bio, EarlyView.
GPR142, a tryptophan‐sensing receptor, stimulates gastrointestinal hormones like ghrelin and is linked to inflammation regulation. Proinflammatory cytokines suppress ghrelin production, while tryptophan levels decrease via IDO1 activation. Our findings reveal that proinflammatory cytokines directly regulate GPR142 expression in ghrelin‐producing cells,
Yoko Ueda, Hiroshi Iwakura, Takuya Ensho, Mika Bando‐Shimizu, Asako Doi, Norihiko Matsutani, Shuhei Morita, Hidefumi Inaba, Hiroyuki Ariyasu, Naoki Fukuda, Keiji Hayata, Toshiyasu Ojima, Masahiro Nishi, Taka‐aki Matsuoka, Hiroki Yamaue, Takashi Akamizu   +15 more
wiley   +1 more source

A Miniature 3-DoF Flexible Parallel Robotic Wrist Using NiTi Wires for Gastrointestinal Endoscopic Surgery [PDF]

arXiv, 2022
Gastrointestinal endoscopic surgery (GES) has high requirements for instruments' size and distal dexterity, because of the narrow endoscopic channel and long, tortuous human gastrointestinal tract. This paper utilized Nickel-Titanium (NiTi) wires to develop a miniature 3-DoF (pitch-yaw-translation) flexible parallel robotic wrist (FPRW).
arxiv  

Identification of inhibitors of the Salmonella FraB deglycase, a drug target

FEBS Open Bio, EarlyView.
A high‐throughput screen was used to identify inhibitors of Salmonella FraB, a drug target. Characterization of top hits (identified after an additional counter screen) revealed that some triazolidines, thiadiazolidines, and triazolothiadiazoles are mixed‐type inhibitors of FraB.
Jamison D. Law, Yuan Gao, Sravya Kovvali, Pankajavalli Thirugnanasambantham, Vicki H. Wysocki, Brian M. M. Ahmer, Venkat Gopalan   +6 more
wiley   +1 more source

Bayesian Analysis of Glucose Dynamics during the Oral Glucose Tolerance Test (OGTT) [PDF]

arXiv, 2020
In this paper, we propose a model of the dynamics of the blood glucose level during an Oral Glucose Tolerance Test (OGTT). This dynamic includes the action of insulin and glucagon in the glucose homeostasis process as the reaction of an oral stimulus.
arxiv