Comparative transcriptome reprogramming in oak galls containing asexual or sexual generations of gall wasps.

Oak gall wasps have evolved strategies to manipulate the developmental pathways of their host to induce gall formation. This provides shelter and nutrients for the developing larva. Galls are entirely host tissue; however, the initiation, development, and physical appearance are controlled by the inducer.

The importance of mA topology in chicken embryo mRNA: a precise mapping of mA at the conserved chicken β-actin zipcode.

-methyladenosine (mA) in mRNA regulates almost every stage in the mRNA life cycle, and the development of methodologies for the high-throughput detection of methylated sites in mRNA using mA-specific methylated RNA immunoprecipitation with next-generation sequencing (MeRIPSeq) or mA individual-nucleotide-resolution cross-linking and immunoprecipitation (miCLIP) have revolutionized the mA research field. Both of these methods are based on immunoprecipitation of fragmented mRNA. However, it is well documented that antibodies often have nonspecific activities, thus verification of identified mA sites using an antibody-independent method would be highly desirable.

Modifying the mA brain methylome by ALKBH5-mediated demethylation: a new contender for synaptic tagging.

Synaptic plasticity processes, which underlie learning and memory formation, require RNA to be translated local to synapses. The synaptic tagging hypothesis has previously been proposed to explain how mRNAs are available at specific activated synapses. However how RNA is regulated, and which transcripts are silenced or processed as part of the tagging process is still unknown.

Asymmetric Transcription Factor Partitioning During Yeast Cell Division Requires the FACT Chromatin Remodeler and Cell Cycle Progression.

The polarized partitioning of proteins in cells underlies asymmetric cell division, which is an important driver of development and cellular diversity. The budding yeast divides asymmetrically, like many other cells, to generate two distinct progeny cells. A well-known example of an asymmetric protein is the transcription factor Ace2, which localizes specifically to the daughter nucleus, where it drives a daughter-specific transcriptional network.

Estimation of haloperidol concentrations in rat striatum after chronic treatment.

3H-Spiroperidol association and dissociation rate constants were determined in rat striatal homogenates in the presence of known concentrations of unlabelled haloperidol. The rate of 3H-spiroperidol association was progressively decreased in the presence of increasing concentrations of haloperidol and no changes were seen in 3H-spiroperidol dissociation rate constants. Measuring changes in 3H-spiroperidol association rate constants permitted detection of 0.

Sensitization versus tolerance to haloperidol-induced catalepsy: multiple determinants.

The effects of dose, administration frequency, and behavioral testing conditions on the development of tolerance versus sensitization to haloperidol-induced catalepsy were tested in rats. Animals received daily or weekly injections of haloperidol (0.05-5.

Sensitization versus tolerance to the dopamine turnover-elevating effects of haloperidol: the effect of regular/intermittent dosing.

Recent clinical research suggests that particular patterns of changes in presynaptic dopamine (DA) turnover accompany the therapeutic response to neuroleptics. We sought to determine whether daily versus weekly dosing of haloperidol for 3 weeks produced distinct effects on DA, dihydroxyphenylacetic acid (DOPAC), and homovanillic acid (HVA) concentrations in multiple brain areas. Daily dosing favored the development of tolerance to the DA-turnover elevating effects of haloperidol in the striatum and nucleus accumbens.

Interrelationships between plasma homovanillic acid and indices of dopamine turnover in multiple brain areas during haloperidol and saline administration.

Haloperidol or saline was administered to rats daily for 1, 8, 15 or 22 days. During haloperidol, but not saline administration, changes in plasma homovanillic acid (HVA) concentrations were correlated with changes in nucleus accumbens HVA. Haloperidol administration also had a significant effect on the intercorrelation of dopamine (DA) concentrations and indices of DA turnover across multiple brain areas.