Abstract Study question Does sperm DNA fragmentation (SDF) by TUNEL affect reproductive success measured as live birth rate (LBR) in egg recipients after euploid embryo transfer? Summary answer SDF increases miscarriage rates with PGT-A. Therefore, depends on damage transfer. What is known already Sperm integrity important for optimal fertilisation, implantation and pregnancy. Although controve...

We describe a novel 3'-OH unblocked reversible terminator with the potential to improve accuracy and read-lengths in next-generation sequencing (NGS) technologies. This terminator is based on 5-hydroxymethyl-2'-deoxyuridine triphosphate (HOMedUTP), a hypermodified nucleotide found naturally in the genomes of numerous bacteriophages and lower eukaryotes. A series of 5-(2-nitrobenzyloxy)methyl-dU...

BACKGROUND AND PURPOSE We examined the effects of a caspase-1 inhibitor, N-Ac-Tyr-Val-Ala-Asp-chloromethyl ketone (Ac-YVAD-CMK), on neurogenic pulmonary edema in the endovascular perforation model of subarachnoid hemorrhage (SAH) in mice. METHODS Ninety-seven mice were assigned to sham, SAH+vehicle, SAH+Ac-YVAD-CMK (6 or 10 mg/kg), and SAH+Z-Val-Ala-Asp-fluoromethylketone (Z-VAD-FMK, 6 mg/kg)...

The catalytic mechanism of dUTP pyrophosphatase (dUTPase), responsible for the prevention of uracil incorporation into DNA, involves ordering of the flexible C terminus of the enzyme. This conformational shift is investigated by multidimensional NMR on the Drosophila enzyme. Flexible segments of the homotrimer give rise to sharp resonances in the (1)H-(15)N heteronuclear single-quantum coherenc...

Fluorescent nucleic acid hybridization probes traditionally have been generated by enzymatic incorporation of dye-labeled nucleotides, even though incorporation efficiency is low and variable from dye to dye. Alternatively, 5-(3-aminoallyl)-2'-deoxyuridine 5'-triphosphate (aa-dUTP) is enzymatically incorporated to generate amine-modified DNA, which is then chemically labeled with an amine-react...

A scheme for rapidly mapping chromosome rearrangements relative to the physical map of Caenorhabditis elegans is described that is based on hybridization patterns of cloned DNA on meiotic nuclei, as visualized by fluorescent in situ hybridization. From the nearly complete physical map, DNA clones, in yeast artificial chromosomes (YACs), spanning the rearrangement breakpoint were selected. The p...

Loss of nucleoside diphosphate kinase (Ndk) function in Escherichia coli results in an increased frequency of spontaneous mutation and an imbalance in dNTP pool levels. It is presumed that the imbalance in dNTP pool levels is responsible for the mutator phenotype of an E. coli ndk mutant. A human homologue of Ndk and potential suppressor of tumor metastasis, nm23-H2, can complement the mutageni...

To evaluate the protective effects of dexmedetomidine on colon and spinal cord rats with functional chronic visceral pain its regulatory mechanism extracellular signal-regulated kinase 1-cyclic adenosine monophosphate response element-binding protein signaling pathway. A rat model irritable bowel syndrome was established by colorectal distention stimulation. Animals were categorized into normal...

Cetuximab is a powerful anti-neoplastic agent that can inhibit cell growth in oral squamous carcinomas (OSCCs). Unfortunately, there are cases with unfavorable outcomes. Because few studies have focused on the combined effects of cetuximab and histone deacetylase (HDAC) inhibitors, we aimed to evaluate antitumor effect combination HDAC inhibitors human OSCC lines, investigate mechanism apoptosi...