Results 91 to 100 of about 2,135,197 (304)

Philosophical issues in experimental biology

, 2006
Introduction: Traditionally, studies in the philosophy of biology have been strongly centered on evolutionary biology and systematics. To be sure, during the last four decades the field of molecular biology has been subject to substantial philosophical ...
Brigandt, Ingo
core   +1 more source

Pre‐analytical optimization of cell‐free DNA and extracellular vesicle‐derived DNA for mutation detection in liquid biopsies

Molecular Oncology, EarlyView.
Pre‐analytical handling critically determines liquid biopsy performance. This study defines practical best‐practice conditions for cell‐free DNA (cfDNA) and extracellular vesicle–derived DNA (evDNA), showing how processing time, storage conditions, tube type, and plasma input volume affect DNA integrity and mutation detection.
Jonas Dohmen, Lucrezia De Santis, Bret M. Stephens, Vincent Bernard, Jörg C. Kalff, Lara Braun, Phillipp Leyendecker, Johannes Röttgen, Daniel Weissinger, Anirban Maitra, Paola A. Guerrero, Alexander Semaan   +11 more
wiley   +1 more source

Dynamic dosage changes in X-linked transposable elements during mammalian dosage compensation

Nature Communications
In mammals, X-linked dosage compensation involves X-chromosome inactivation to balance X chromosome dosage between males and females, and hyperactivation of the remaining X-chromosome (Xa-hyperactivation) to achieve X-autosome balance in both sexes ...
Chunyao Wei, Barry Kesner, Uri Weissbein, Peera Wasserzug-Pash, Priyojit Das, Jeannie T. Lee   +5 more
doaj   +1 more source

Keratin 19 as a prognostic marker and contributing factor of metastasis and chemoresistance in high‐grade serous ovarian cancer

Molecular Oncology, EarlyView.
Keratin 19 (KRT19) is overexpressed in high‐grade serous ovarian cancer with high levels of Kallikrein‐related peptidases (KLK) 4–7 and is associated with poor survival. In vivo analyses demonstrate that elevated KRT19 increases peritoneal tumour burden.
Sophia Bielesch, Isabel Vogel, Sina Nokodian, Johanna Moeller, Antonia Blechschmidt, Vicky Hecht, Vanessa Kuentzel, Katharina Thiedig, Melissa Schwab, Oliver Schilling, Holger Bronger, Marion Kiechle, Viktor Magdolen, Tobias Dreyer   +13 more
wiley   +1 more source

Course Project Overview Biology 1400, General Biology II

, 2023
This open pedagogy assignment is a semester-long project for an introductory general biology course for biology majors. Working in pairs or small groups, students will make a 3 to 5 minute video explaining concepts from the course learning objectives ...
Polizzotto, Kristin
core  

Somatic mutational landscape in von Hippel–Lindau familial hemangioblastoma

Molecular Oncology, EarlyView.
The causes of central nervous system (CNS) hemangioblastoma in Von Hippel–Lindau (vHL) disease are unclear. We used Whole Exome Sequencing (WES) on familial hemangioblastoma to investigate events that underlie tumor development. Our findings suggest that VHL loss creates a permissive environment for tumor formation, while additional alterations ...
Maja Dembic, Anne Nørremølle, Lilian Bomme Ousager, Lars van Brakel Andersen, Marie Louise Mølgaard Binderup, Mads Thomassen   +5 more
wiley   +1 more source

Association between changes in genital immune markers and vaginal microbiome transitions in bacterial vaginosis

Scientific Reports
Bacterial vaginosis (BV), characterized by an imbalance in the vaginal microbiota, is a prevalent condition among women of reproductive age and a risk factor for human immunodeficiency virus, sexually transmitted infections, and preterm birth.
Philipp Foessleitner, Briah Cooley Demidkina, Wafae El-Arar, Miles Goldenberg, Meena Murthy, Agnes Bergerat, Ofri Bar, Douglas S. Kwon, Caroline M. Mitchell   +8 more
doaj   +1 more source

Dual PI3K/AKT and CDK4/6 inhibition reveals selective sensitivity in an SHH medulloblastoma stem cell model

Molecular Oncology, EarlyView.
Targeted therapy was evaluated in SHH medulloblastoma using neuroepithelial stem cell (NES) and tumor‐derived NES‐like (tNES) models in 2D monolayers and 3D spheroids. PI3K, AKT, and CDK4/6 inhibitors had minimal effects in NES but markedly reduced viability and growth and induced apoptosis in tNES cells, revealing distinct therapeutic vulnerabilities.
Monika Lukoseviciute, Madeleine Birgersson, Paolo Ceriani, Margareta Wilhelm, Ourania N Kostopoulou   +4 more
wiley   +1 more source

Optical coherence tomography and histological assessment of cutaneous vasculature and neural changes in long-term smokers: an exploratory study

Scientific Reports
Smoking affects microcirculation by damaging endothelial cells and reducing blood flow. Vascular disease is also thought to contribute to the development of diabetic neuropathy, resulting in the decrease of nerve fiber density.
Abigail E. Doyle, Payal M. Patel, Sarina B. Elmariah, Alica Van Cott, Abigail Carlson, Heather Downs, Lais Lopes Almeida Gomes, Michael Wang-Evers, Dieter Manstein   +8 more
doaj   +1 more source

Regional development: contribution of evolutionary biology [PDF]

This paper tries to set out a potential of application of some evolutionary biology concepts to the issue of regional development. The objective is to show that employment of these concepts or at least inspiration by them may enrich some theories of ...
Lucie Vaskova
core