Detection of Salmonella in dry foods using refrigerated pre-enrichment and enrichment broth cultures: summary of collaborative study

A collaborative study was conducted to compare the productivity of refrigerated pre-enrichment and enrichment broth cultures with the U.S. Food and Drug Administration culture methods for detection of Salmonella. The refrigerated pre-enrichment and selective enrichment broth culture methods for detection of Salmonella in dry foods have been adopted first action by AOAC INTERNATIONAL.     

Detection of Salmonella in dry foods using refrigerated pre-enrichment and enrichment broth cultures: interlaboratory study

An interlaboratory study was performed in 11 laboratories to validate the use of pre-enrichment and tetrathionate brilliant green (TBG35) and selenite cystine (SC35) enrichment cultures refrigerated 72 h at 2-5 degrees C for greater analytical flexibility in the detection of Salmonella in dry foods. Productivities of refrigerated pre-enrichment and enrichment cultures were compared with that of the AOAC/Bacteriological Analytical Manual (BAM) procedure using 4 food types: whole egg powder, milk chocolate, animal feed, and instantized skim milk powder. Uninoculated and inoculated samples were included in each food group. There was complete agreement between the results obtained by the standard AOAC/BAM procedure and the 2 refrigeration procedures. Of 660 samples tested, the AOAC/BAM procedure identified 393 contaminated samples that were readily detected from the corresponding refrigerated pre-enrichment cultures and from the combined productivity of homologous refrigerated TBG35 and SC35 cultures. Refrigeration (72 h) of pre-enrichment or enrichment cultures for greater analytical flexibility and laboratory productivity in the examination of dry foods is under review for adoption by AOAC International.     

Heat destruction of Salmonella in poultry feed: effect of time, temperature, and moisture

Presentation of our experience in three cases of urocolpos (acquired pudendal lip fusion), a series numerically equivalent to the total number of cases published until now. All patients in our series were older women and presented complete fusion of the small pudendal lips, with only a small pointed puncture in the lower part of the vulva. The main clinical signs and symptoms in our series were: urinary infection in 100%, false incontinence in 66% due to output of urine retained in the vagina, a symptom that has not been described earlier, and acute urine retention in 33%. All patients were successfully treated by means of surgical loosening of the fusioned lips and application of topical estrogens. An analysis is made of clinical and pathoanatomical features which differentiate this entity from the sclerotic and atrophic lichen. Finally, an etiopathogenic hypothesis is raised to explain the fusion acquired by the small pudendal lips in the urocolpos.     

Psychotherapy and recovery from schizophrenia: A review of potential applications and need for future study.

Recovery from schizophrenia has been conceptualized to involve not only symptom remission of symptoms and achievement of psychosocial milestones but also subjective changes in how persons appraise their lives and the extent to which they experience themselves as meaningful agents in the world. In this article we review the potential of individual psychotherapy to address these more subjective aspects of recovery. Literature on the effectiveness of psychotherapy for persons with schizophrenia is discussed, and two different paths by which psychotherapy might modify self-experience are described. First, we detail how psychotherapy could be conceptualized and tailored to help persons with schizophrenia to construct richer and fuller narrative accounts of their lives, including their strengths, challenges, losses, and hopes. Second, we explore how psychotherapy could target the capacity for metacognition or thinking about thinking, assisting persons with psychosis to become able to think about themselves and others in a generally more complex and flexible manner. The needs for future research are discussed along with a commentary on how current evidence- and skill-based treatments may contain key elements that could be considered psychotherapeutic. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Learning how to recover from job stress: Effects of a recovery training program on recovery, recovery-related self-efficacy, and well-being.

This quasi-experimental study evaluated the effects of a recovery training program on recovery experiences (psychological detachment from work, relaxation, mastery experiences, and control during off-job time), recovery-related self-efficacy, and well-being outcomes. The training comprised two sessions held one week apart. Recovery experiences, recovery-related self-efficacy, and well-being outcomes were measured before the training (T1) and one week (T2) and three weeks (T3) after the training. A training group consisting of 48 individuals and a waitlist control group of 47 individuals were compared (N = 95). Analyses of covariance revealed an increase in recovery experiences at T2 and T3 (for mastery only at T2). Recovery-related self-efficacy and sleep quality increased at T2 and T3, perceived stress and state negative affect decreased at T3. No training effects were found for emotional exhaustion. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Positive life events, attributional style, and hopefulness: Testing a model of recovery from depression.

A model of a recovery process from depression that is compatible with the hopelessness theory of depressive onset is proposed. This model predicts that depressives who have an enhancing attributional style for positive events (i.e., make global, stable attributions for such events) will be more likely to regain hopefulness and, thereby, recover from depression, when positive events occur. This prediction was tested by following a group of depressed college students longitudinally for 6 weeks. Although neither positive events alone nor attributional style alone predicted reduction in hopelessness, depressives who both showed the enhancing attributional style for positive events and experienced more positive events showed dramatic reductions in hopelessness which were accompanied by remission of depressive symptoms. Thus, attributional style for positive events may be a factor that enables some depressives to recover when positive events occur in their lives. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

European collaborative study of LH assay: 3. relationship of immunological reactivity, biological activity and charge of human luteinizing hormone

This report describes the results of the third part of the collaborative study organized by a working group sponsored by the Community Bureau of Reference of the European Community Commission. The aim of the present work was to establish the link between immunoreactivity and biological activity of human LH, thus allowing to determine the antigenic domains of the molecule involved in the induction of the biological effect. The relationship between immunoreactivity and electric charge of hLH was also studied. This work allowed to further apprehend hLH isomorphism and its role in discrepancies observed among hLH assays and clinical status. It also made the feasibility of measuring biologically active isoforms by an immunological method to be assessed. The effect of 36 mAb with known epitopic specificity, was evaluated on both hLH binding to rat membrane receptor and hLH induced production of testosterone by porcine Leydig cells. All the epitopes located on the beta subunit were found to be strongly involved in the biological activity whereas 4/9 and 10/18 epitopes present on the alpha subunit or specific for the holomolecule respectively appeared weakly involved. Assaying biological hLH using immunological method would require that mAb specific for all the epitopes involved in the receptor activation be tested, and thus appears presently unsuitable for routine clinical evaluation. In the previous work some LH immunoassays were found to underestimate LH concentrations (J. Endocrinol. Invest 1994, 17: 397-406 and 407-416). The mAb used in liquid phase in these kits were found in the present work to be directed against the domains of LH weakly involved in the activation of the receptor and would suggest that bioactive LH would be misevaluated by these kits. The immunoreactivity of hLH isoforms separated by isoelectric focusing (IEF) in liquid phase was also determined. IEF allowed to separate three groups of hLH isoforms but none of them exhibited a specific discriminating pattern of immunoreactivity when they were tested against a panel of mAb. It suggests that, in our experimental conditions, the electric charge and the immunoreactivity of hLH were not closely linked.     

Mastery, sense of coherence, and mortality: Evidence of independent associations from the epic-norfolk prospective cohort study.

This study investigated the association between 2 distinct personal coping resources (mastery and sense of coherence) and all-cause, cardiovascular, and cancer mortality. During follow-up (up to 6 years), 994 deaths were recorded among 20,323 participants, ages 41 to 80 years, in the European Prospective Investigation into Cancer Study in the United Kingdom. A strong sense of mastery was associated with lower rates of mortality from all causes, cardiovascular disease, and cancer, after adjusting for age, sex, and prevalent chronic physical disease. The association with all-cause mortality was observed for both men and women and remained following further adjustment for cigarette smoking, social class, hostility, neuroticism, and extroversion. Analysis of the joint association between mastery and sense of coherence revealed both personal coping dispositions to be independently associated with lower rates of all-cause mortality. In addition, these data suggested that the association for mastery was specific to cardiovascular mortality, whereas the association for sense of coherence was specific to cancer mortality. These results may aid future study of coping resources as determinants of persistent well-being. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Authority, autonomy, and parent–adolescent conflict and cohesion: A study of adolescents from Mexican, Chinese, Filipino, and European backgrounds.

This study examined whether parent–child conflict and cohesion during adolescence vary among families characterized as having different cultural traditions regarding parental authority and individual autonomy. Approximately 1,000 American adolescents from immigrant and native-born families with Mexican, Chinese, Filipino, and European backgrounds reported on their beliefs, expectations, and relationships with parents; longitudinal data were available for approximately 350 of these youths. Despite holding different beliefs about parental authority and individual autonomy, adolescents from all generations and cultural backgrounds reported similar levels of conflict and cohesion with their parents. Discussion focuses on the relative importance of cultural beliefs and social settings in shaping the nature of parent–child relationships during adolescence. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Temporal associations of cigarette smoking with social influences, academic performance, and delinquency: A four-wave longitudinal study from ages 13-23.

This study examined the temporal associations of cigarette smoking with prosmoking social influences, academic performance, and delinquency in a cohort of 6,527 adolescents surveyed at ages 13, 16, 18, and 23 years. Prosmoking peer and family influences were risk factors for future smoking throughout adolescence, with family influences perhaps also operating indirectly through the adolescent's exposure to prosmoking peers. There were reciprocal associations of youth smoking with parental approval, peer smoking, and poor grades (but not delinquency), with youth smoking emerging as a stronger antecedent than consequence of these psychosocial factors. Few gender differences in these associations were observed. Implications of these findings for efforts to prevent youth smoking are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)