Trauma assessment in outpatient psychotherapy and associations with psychotherapist's gender, own traumatic events, length of work experience, and theoretical orientation.

Background: Traumatic events are strongly associated with mental health problems. At present, traumatic events and trauma-specific needs are commonly underdetected in therapeutic settings. Many mental health professionals lack key competencies for trauma inquiry and treatment.

Broader utilization of origins of DNA replication in cancer cell lines along a 78 kb region of human chromosome 2q34.

Human DNA replication depends on the activation of thousands of origins distributed within the genome. The actual distribution of origins is not known, nor whether this distribution is unique to a cell type, or if it changes with the proliferative state of the cell. In this study, we have employed a real-time PCR-based nascent strand DNA abundance assay, to determine the location of origins along a 78 kb region on Chr2q34.

Preferential localization of human origins of DNA replication at the 5'-ends of expressed genes and at evolutionarily conserved DNA sequences.

Background: Replication of mammalian genomes requires the activation of thousands of origins which are both spatially and temporally regulated by as yet unknown mechanisms. At the most fundamental level, our knowledge about the distribution pattern of origins in each of the chromosomes, among different cell types, and whether the physiological state of the cells alters this distribution is at present very limited.

Methodology/principal Findings: We have used standard λ-exonuclease resistant nascent DNA preparations in the size range of 0.

Profiling human gene expression with cDNA microarrays.

As a result of genomics initiatives worldwide, it has become increasingly easy to obtain cDNA clones representing the 3 ends of many human genes. This unit describes methods that allow these clones to be used as hybridization detectors in a highly parallel assay of gene expression. Protocols are provided for preparing cDNA microarrays, extracting RNA from cells of interest and preparing fluorescently labeled cDNA representations of the message pools, and hybridizing the labeled cDNAs to the microarrays.

Profiling human gene expression with cDNA microarrays.

As a result of genomics initiatives worldwide, it has become increasingly easy to obtain cDNA clones representing the 3' ends of many human genes. This unit describes methods that allow these clones to be used as hybridization detectors in a highly parallel assay of gene expression. Protocols are provided for preparing cDNA microarrays, extracting RNA from cells of interest and preparing fluorescently labeled cDNA representations of the message pools, and hybridizing the labeled cDNAs to the microarrays.