Results 41 to 50 of about 1,715 (179)

Neurogenesis and the Epigenetic Landscape: Role of Histone Modifications and Chromatin Remodeling

Brain and Behavior, Volume 16, Issue 2, February 2026.
Histone methylation and acetylation modulate gene expression by inducing chromatin condensation or relaxation, which in turn regulates transcriptional activity and impacts neurogenesis. ABSTRACT Aims The purpose of this review is to examine how epigenetic regulation particularly chromatin modification and histone methylation controls gene expression ...
Degisew Yinur Mengistu, Biniam Moges Eskeziyaw   +1 more
wiley   +1 more source

Imprint cytology of the astrocytic tumors

The Journal of the Japanese Society of Clinical Cytology, 2003
目的:脳腫瘍のなかでも発生頻度の高い星細胞系腫瘍の捺印細胞所見を組織学的grade分類に対比させ, grade別の細胞所見をまとめて有用性を検討した.方法:材料は脳腫瘍迅速診断に提出された星細胞系腫瘍81例 (星細胞腫grade Iが6例, grade IIが28例, grade IIIが14例, grade IVが33例) の捺印細胞標本を用いた. 同一症例の組織標本と 対比し, 組織学的grade分類に対応する捺印細胞所見をgrade別にまとめた.成績:grade Iの細胞は毛様, 線維性で細胞質の保持が良い. grade IIでは細線維性基質上に類円形の核が並ぶ. grade IIIでは出現する集塊の細胞密度が高く, 軽度の核異型が認められる.
Hiroko YAMAZAKI, Hideaki YOKOO, Junko HIRATO, Yoichi NAKAZATO   +3 more
openaire   +2 more sources

Loss of METTL3 m6A methyltransferase results in short‐term progression and poor treatment outcome of bladder cancer patients

International Journal of Cancer, Volume 158, Issue 3, Page 763-774, 1 February 2026.
What's new? Bladder cancer exhibits a highly heterogeneous molecular landscape and treatment response. The dysregulation of RNA modifications such as m6A has been involved in cancer initiation and progression. This study comprehensively analyzed the expression of the main catalytic component of the m6A methylation machinery in bladder tumors across one
Katerina‐Marina Pilala, Stella Koroneou, Maria‐Alexandra Papadimitriou, Konstantina Panoutsopoulou, Konstantinos Soureas, Georgios‐Christos Giagkos, Panagiotis Levis, Dimitrios Linardoutsos, Konstantinos Stravodimos, Margaritis Avgeris, Andreas Scorilas   +10 more
wiley   +1 more source

Time‐Resolved Fluorescence and Diffuse Reflectance (TRF‐DR) Spectroscopy for Heterogeneous Breast Tissue Classification and Tumor Margin Assessment

Journal of Biophotonics, Volume 19, Issue 2, February 2026.
This study demonstrates our time‐resolved fluorescence and diffuse reflectance spectroscopy system can classify breast tumor in heterogeneous tissue. It achieved sensitivity and specificity comparable to other techniques and highlights the effect of heterogeneous measurements on performance.
Jigar Lad, Erica Dao, Gabriella Gohla, Peter Lovrics, Qiyin Fang, Thomas J. Farrell, Michael J. Farquharson   +6 more
wiley   +1 more source

Utility of Intra-operative Cytological Diagnosis in Cases of Ovarian Tumours [PDF]

National Journal of Laboratory Medicine, 2017
Introduction: Intraoperative cytology of ovarian tumors is an easy, inexpensive and reliable method of investigation. Its accuracy is comparable with histological diagnosis.
Sagarika Samantaray, Bhagyalaxmi Nayak, Upasana Das, Subhasis Mishra, Sushil Kumar Giri, Niranjan Rout   +5 more
doaj   +1 more source

Intraoperative Diagnosis of Neoplastic Lesions by Imprint Cytology and Frozen Section with Histopathological Correlation

Medical Journal of Dr. D.Y. Patil Vidyapeeth, 2023
Introduction: Intraoperative consultation examinations are required by surgeons from pathologists for immediate important decisions regarding the optimal extent of surgery. Surgeons particularly want to know whether a lesion is malignant or not.
Saroj Deoghare, Syed S Ali, Shrutika Dhawan, Komal D Sawaimul   +3 more
doaj   +1 more source

Patterns of Interploidy Admixture in Polyploid Complexes: Insights From Thymus Sect. Mastichina (Lamiaceae)

Molecular Ecology, Volume 35, Issue 3, February 2026.
ABSTRACT Understanding gene flow between ploidy levels in polyploid complexes is essential for species delimitation and conservation. This study explores evolutionary dynamics in the polyploid complex Thymus sect. Mastichina (Lamiaceae), comprising three taxa: T. mastichina subsp. mastichina, T. mastichina subsp.
Francisco José García‐Cárdenas, María Ángeles Ortiz, José Carlos del Valle, David Doblas‐Pruvost, Manuel de la Estrella, Diego Nieto‐Lugilde, Lisa Pokorny, Regina Berjano   +7 more
wiley   +1 more source

Imprint cytology of the chromophobe renal cell carcinoma: Correlation with the histological and ultrastructural features

Journal of Cytology, 2011
Chromophobe renal cell carcinoma (ChRCC) is a unique entity of renal cell carcinoma and has a low malignant potential. A correct cytological diagnosis can help to decide the suitable management and operation.
Wonae Lee
doaj   +1 more source

CD30 as a Target Molecule in the Diagnosis and Therapy of Lymphomas

American Journal of Hematology, Volume 101, Issue 1, Page 110-128, January 2026.
ABSTRACT The tumor necrosis factor (TNF)‐receptor superfamily 8 receptor CD30 molecule is expressed in all tumor cells of Hodgkin lymphoma and anaplastic large cell lymphoma but is only weakly expressed in a small subset of large lymphoid cells in normal peripheral lymphoid tissues.
Harald Stein, Brunangelo Falini
wiley   +1 more source

Imprint cytology: A diagnostic aid in interpretation of upper gastrointestinal endoscopic biopsies

Journal of Digestive Endoscopy, 2014
Context: Although major advances have occurred in the cytological diagnosis of various organ pathologies, gastrointestinal (GI) cytology has not gained popularity and is only occasionally practiced in the form of brushings and washings.
Divya Vijayanarasimha, Asha Mahadevappa, G. V. Manjunath, R. Sunila   +3 more
doaj   +1 more source