Sixty‐eight agency representatives in the United States completed a survey to identify issues of male victims in partner abuse: half referenced responses from male clients and the other half responses from male victims who were their family members, friends, colleagues, or themselves. Almost 25% revealed that male victims did not utilize social services. For those men who used services, individual counseling and legal advice were most popular; group counseling and sharing through the Internet were least used. Qualitative data found five themes that triggered men's hard times: service target perception, shame and embarrassment, denial, stigmatization, and fear. The study resulted in three recommendations: (a) increase public awareness and education; (b) provide gender‐inclusive practice and services, and (c) strengthen training for service providers working with domestic violence male victims. © 2010 Wiley Periodicals, Inc.

A parallel microfluidic cytometer (PMC) uses a high-speed scanning photomultiplier-based detector to combine low-pixel-count 1-D imaging with flow cytometry. The 384 parallel flow channels of the PMC decouple count rate from signal-to-noise ratio. Using 6-pixel 1-D images, we investigated protein-localization in a yeast model for a human protein-misfolding disease and demonstrated the feasibility of a nuclear-translocation assay in Chinese-hamster-ovary (CHO) cells expressing a NFκB-GFP reporter.

No abstract

We present measurements by deep-ultraviolet mass mapping of nucleic acid (NA) and protein for five commonly cultured and three primary cell types. The dry mass distribution at submicron resolution was determined on a single-cell basis for 250-500 cells from each of these types. Since the method carries a direct reference to a spectrophotometric standard (molar extinction coefficient), we are able to calibrate the absolute weight distributions both on a cell-to-cell basis within each type and across types. We also provide a calibration in absolute mass units for fluorescence-based measurements (flow cytometry and fluorescence microscopy). As might be expected the cultured cell lines show a high concentration of nucleic acids in the nuclear compartment, much larger than the genomic 2C number even in the G1 stage. The whole-cell nucleic-acid/ protein ratio was found to be a characteristic of cell lines that persists independent of cell cycle and, as a result, this ratio has some value for phenotyping. Primary chicken red blood cells (cRBC), often used as a cytometry standard, were determined to have a nuclear-isolated nucleic acid content much closer to the genomic number than the cultured cell lines (cRBC: 3.00 pg total NA, 2.30 pg DNA, and 0.70 pg RNA). The individual blastomeres (n 5 54) from mouse embryos at eight-cell stage were measured and found to vary by more than a factor or two in total protein and nucleic acid content (0.8-2.3 ng total protein, 70-150 pg total NA). The ratio of nucleic acid to protein was more nearly constant for each blastomere from a particular embryo and this ratio was found to be an identifying characteristic that varies from embryo to embryo obtained from a single flushing of a mouse. ' 2013 International Society for Advancement of Cytometry

By using imaging spectrophotometry with paired images in the 200- to 280-nm wavelength range, we have directly mapped intracellular nucleic acid and protein distributions across a population of Chinese hamster ovary (CHO-K1) cells. A broadband 100× objective with a numerical aperture of 1.2NA (glycerin immersion) and a novel laser-induced-plasma point source generated high-contrast images with short (~100 ms) exposures and a lateral resolution nearing 200 nm that easily resolves internal organelles. In a population of 420 CHO-K1 cells and 477 nuclei, we found a G1 whole-cell nucleic acid peak at 26.6 pg, a nuclear-isolated total nucleic acid peak at 11.4 pg, and, as inferred by RNase treatment, a G1 total DNA mass of 7.4 pg. At the G1 peak we found a whole-cell protein mass of 95.6 pg, and a nuclear-isolated protein mass of 39.3 pg. An algorithm for protein quantification that senses peptide-bond (220-nm) absorbance was found to have a higher signal-to-noise ratio and to provide more reliable nucleic acid and protein determinations when compared to more classical 280-nm/260-nm algorithms when used for intracellular mass mapping. Using simultaneous imaging with common nuclear stains (Hoechst 33342, Syto-14, and Sytox Orange), we have compared staining patterns to deep-UV images of condensed chromatin and have confirmed bias of these common nuclear stains related to nuclear packaging. The approach allows absolute mass measurements with no special sample preparation or staining. It can be used in conjunction with normal fluorescence microscopy and with relatively modest modification of the microscope.