Unique issues faced by deaf individuals entering substance abuse treatment and following discharge.

Several barriers can frustrate a deaf individual's intention to enter a substance abuse treatment program. Because few specialized programs work with the Deaf, it is difficult to determine the factors that influence a deaf individual's desire to maintain sobriety following completion of a residential treatment program. A sample of 100 individuals was drawn from the Minnesota Chemical Dependency Program for Deaf and Hard of Hearing Individuals, a model hospital-based inpatient treatment program. The study participants were asked to complete pretreatment and posttreatment surveys upon admission and discharge, respectively, in addition to a follow-up survey, to help determine which background factors might be associated with different treatment outcomes for deaf and hard of hearing persons who completed treatment in the program. Results are presented for the pretreatment and posttreatment assessments, and for the follow-up survey. Study limitations are discussed and recommendations are given for future treatment programs serving deaf and hard of hearing individuals.

Plasma-soluble E-selectin after cardiopulmonary bypass in children: is it a marker of the postoperative course?

OBJECTIVE: To investigate the relationship and possible role of soluble adhesion molecule E-selectin in the postoperative course in children undergoing cardiopulmonary bypass (CPB). DESIGN: Prospective cohort study. SETTING: Pediatric intensive care unit of a university hospital. PARTICIPANTS: Thirteen children who were candidates for cardiac surgery. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: Serial blood samples of 13 CPB patients were collected from the arterial catheter or from the bypass circuits preoperatively; on initiation of CPB; on termination of CPB; and 1, 2, 4, 8, 12, 18, 24, and 48 hours postoperatively. Plasma was recovered immediately, aliquoted, and frozen at -70 degrees C until use. Circulating soluble selectin molecules were measured with a sandwich enzyme-linked immunosorbent assay technique. There were significant changes in plasma levels of soluble E-selectins in patients after CPB, and these levels were associated with patient characteristics, operative variables, and postoperative course. Soluble E-selectin correlated significantly with inotropic support and the use of anti-inflammatory drugs. There was a significant association between the development of postoperative sepsis and soluble E-selectin levels. No correlation was found between soluble E-selectins and duration of CPB, aortic cross-clamping, or hemodynamic variables, including heart rate and mean systemic arterial pressure. CONCLUSION: These results suggest a relationship between CPB-induced mediators and early and late clinical effects. Although the mechanism for the increase of soluble E-selectin remains to be elucidated, the upregulation of soluble E-selectin indicates neutrophil activation, and its inhibition may represent a target for reducing the inflammatory response associated with CPB.

Assessing substance abuse problems in deaf and hard of hearing individuals.

Professionals who provide services to deaf and hard of hearing individuals may encounter situations related to abuse of alcohol and other drugs. Getting access to an agency that can provide an appropriate chemical dependency assessment for a deaf or hard of hearing person is difficult because there are no formalized assessment tools normed or specifically designed to use with such individuals. Additionally, most assessors are unfamiliar with how to work with deaf and hard of hearing people, less likely to be fluent in American Sign Language, and unaware of appropriate treatment options. The present article provides an overview of chemical dependency, assessment issues, and considerations unique to the deaf and hard of hearing population. A chemical dependency assessment tool developed by the Minnesota Chemical Dependency Program for Deaf and Hard of Hearing Individuals is described, as well as a case study that illustrates application of the assessment process.

Molecular cloning of the bovine thymopoietin gene and its expression in different calf tissues: evidence for a predominant expression in thymocytes.

Thymopoietin (TP), a 49 amino acid peptide, is regarded as a thymic hormone, secreted specifically by some epithelial cells in the thymic stroma and exerting a multitude of effects on maturation and function of T lineage cells. As part of our study on the molecular biology of TP, we isolated cDNA clone coding for a bovine TP precursor and used it as a probe to analyze the presence of mRNA coding for TP in different tissues. The cDNA clone reported here is 1.1 kb long and contains an open reading frame (ORF) of 741 bp which corresponds to 247 amino acids. The 147 bp coding for the entire bovine TP are at the 5' end of the ORF. A DNA fragment coding for amino acids 1-42 of bovine TP was used as a probe to look for hybridizable RNA sequences, extracted from various calf tissues, by the S1 nuclease protection method. Our results indicate that the TP gene is expressed predominantly in lymphatic tissues. Lymphatic tissues with the highest levels observed were thymocytes and not thymic stroma. Lower, but still significant, amounts were present in tonsils, neck lymph nodes, and small intestine (probably because of its lymphatic part--the Peyer's patches), whereas cultured thymic stromal cells, spleen tissue and peripheral blood mononuclear cells displayed a low level of TP mRNA. The TP gene expression in all other (non-lymphatic) tissues tested, was weak, barely detectable or virtually absent. However, the cerebellum could be singled out with relatively strong expression of TP mRNA.(ABSTRACT TRUNCATED AT 250 WORDS)

DNA-processing activities associated with the purified alpha, beta 2, and alpha beta molecular forms of avian sarcoma virus RNA-dependent DNA polymerase.

The RNA-dependent DNA polymerase purified from B77 avian sarcoma virus exhibited two distinct DNA-processing activities. The alpha and beta 2 isoenzymes possessed an endodeoxyribonuclease activity capable of nicking simian virus 40 superhelical DNA, whereas the alpha beta isoenzyme performed as an untwisting topoisomerase. Both activities associated with the three molecular forms of the retroviral DNA polymerase were dependent on the presence of either Mn2+ or Mg2+ ions. From analysis of the denaturated DNA products, it is apparent that the alpha and beta 2 isoenzymes introduced two nicks, one per each strand in the superhelical simian virus 40 DNA molecules, whereas the alpha beta polymerase converted these supercoiled molecules to the relaxed covalently closed circular form. The notion that the DNA-processing activities are located on the DNA polymerase molecules was supported by the following: (i) the three isoenzymes were of a high purity; (ii) the activities cosedimented in glycerol gradients with the DNA polymerase activities of the alpha, beta 2, and alpha beta molecular forms; and (iii) immunoglobulin directed against the purified polymerase immunoprecipitated the DNA-processing activities. Chemical treatments of the DNA polymerase molecules (with pyridoxalphosphate, iodoacetamide, and sulfhydryl reagents), which inhibited the polymerase activity, also suppressed the endonucleolytic and topoisomerase activities, suggesting that cystein and amino groups play an important role in the active sites of the DNA-processing activities as well.

Host range and oncogenicity studies of the murine myeloma MOPC-315 type-C retrovirus.

The biological features of an endogenous type-C RNA tumor virus released by the murine plasmacytoma MOPC-315 were determined. The virus was found to be pure ecotropic and, according to its capability to infect both NIH/3T3 and BALB/3T3 cells, it was established as an NB tropic virus. This tropism became more pronounced as a consequence of multiple passage in balb/3T3 cells. In view of the ability of myeloma viruses to efficiently infect BALB/c cells, their possible role in myeloma induction is considered.