Results 91 to 100 of about 2,573,553 (254)

Effect of sperm cryopreservation and preparation before freezing–thawing process: A study of DNA fragmentation and ultrastructure

open access: yesJournal of Advanced Pharmaceutical Technology & Research
Male fertility preservation can be achieved through assisted reproductive technology, in which sperm cryopreservation plays an essential role. However, the freezing–thawing process induces cellular stress, primarily through intracellular ice crystal ...
Silvia Werdhy Lestari   +7 more
doaj   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Phosphorylation events surrounding the DNA damage response in "Saccharomyces cerevisiae" [PDF]

open access: yes, 2007
Protein phosphorylation mediated by checkpoint kinases is crucial for the cellular response to DNA damage. The sensor kinases Mec1 and Tel1 initiate the checkpoint signaling cascade by directly activating the checkpoint effector kinase Rad53.
Schleker, Thomas Andreas
core   +1 more source

Modern human sperm freezing: Effect on DNA, chromatin and acrosome integrity

open access: yesTaiwanese Journal of Obstetrics & Gynecology, 2017
Objective: Presence of vitrification method in sperm freezing and the introduction of solid surface vitrification beside rapid freezing in vapour, opens an easy and safe way to help infertility centres.
Tahereh Rahiminia   +4 more
doaj   +1 more source

Circular RNA expression landscapes in myelodysplastic neoplasms: Associations with mutational signatures and disease progression

open access: yesMolecular Oncology, EarlyView.
In this explorative study, the abundance of circular RNA molecules in bone marrow stem cells was found to be elevated in patients with high‐risk myelodysplastic neoplasms, and to be associated with an increased risk of progression to acute myeloid leukemia.
Eileen Wedge   +17 more
wiley   +1 more source

Replication Stress and Consequential Instability of the Genome and Epigenome

open access: yesMolecules, 2019
Cells must faithfully duplicate their DNA in the genome to pass their genetic information to the daughter cells. To maintain genomic stability and integrity, double-strand DNA has to be replicated in a strictly regulated manner, ensuring the accuracy of ...
Pawlos S. Tsegay, Yanhao Lai, Yuan Liu
doaj   +1 more source

Differential expression of cancer‐related genes supports prediction of poor response to first‐line treatments in T‐ALL pediatric patients with high minimal residual disease

open access: yesMolecular Oncology, EarlyView.
In the present work, we have identified a transcriptional signature based on the differential expression of six genes (BCL2&MAST4, HSH2D&LAT2, METRN&PITPNM2) that would facilitate the early detection of T‐cell acute lymphoblastic leukemia (T‐ALL) patients prone to a poor treatment response and could be implemented at diagnosis, along with other risk ...
Antonio Lahera   +11 more
wiley   +1 more source

DNA fingerprinting and the right to inviolability of the body and bodily integrity in the Netherlands: convincing evidence and proliferating body parts

open access: yes, 2006
The paper uses insights from the so-called rape in disguise case study to describe forensic DNA practices in the Netherlands in late 1980s. It describes how reliabilities of forensic DNA practices were achieved.
Toom, Victor
core  

A Saccharomyces cerevisiae Model for the Overexpression of the Base Excision DNA Repair Protein Ntg1 Reveals Novel Genetic Interactions

open access: yesDNA
Background/Objectives: The base excision repair (BER) pathway repairs oxidative DNA damage, a common and detrimental form of damage to the genome. Although biochemical steps in BER have been well defined, little is understood about how the pathway is ...
Annie J. McPherson   +3 more
doaj   +1 more source

Developmental programmes drive cellular plasticity, disease progression and therapy resistance in lung adenocarcinoma

open access: yesMolecular Oncology, EarlyView.
This study shows that lung adenocarcinomas exploit developmental branching morphogenesis to acquire a therapy resistant basal‐like tumour cell state. This process was found to be regulated by combined TP53 loss‐of‐function and type‐I interferon signalling, identifying a novel axis for biomarker and therapeutic target discovery.
Kamila J Bienkowska   +13 more
wiley   +1 more source

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