Supplementing young cattle with a rumen-protected grape extract around vaccination increases humoral response and antioxidant defenses.

Vaccination is an important mainstay of biosecurity and disease prevention in livestock farming. Vaccination failures represent an economic burden for the farmer. Polyphenol supplementation, known for its antioxidant properties, could help reduce oxidative damage and improve the success of vaccination.

Identification of Ssm1b, a novel modifier of DNA methylation, and its expression during mouse embryogenesis.

The strain-specific modifier Ssm1 is responsible for the strain-dependent methylation of particular E. coli gpt-containing transgenic sequences. Here, we identify Ssm1 as the KRAB-zinc finger (ZF) gene 2610305D13Rik located on distal chromosome 4.

Effect of CBT on Depressive Symptoms in Methadone Maintenance Patients Undergoing Treatment for Hepatitis C.

To examine the efficacy of a cognitive-behavioral intervention (CBT) to prevent depression among methadone maintenance patients undergoing antiviral treatment for hepatitis C (HCV), 29 patients beginning HCV treatment were randomized to CBT or standard care (SC). Study participants did not meet criteria for major depressive disorder at the time of study recruitment. CBT did not result in less depression-related antiviral treatment failure, better adherence to antiviral treatment, or better HCV RNA outcomes.

Alcohol use of diabetes patients: the need for assessment and intervention.

It is well known that diabetes self-care behaviors are critical to disease progression. Unfortunately, many patients do not adhere to diabetes self-care recommendations despite their importance. Alcohol use has been identified as a barrier to diabetes self-care adherence.

Human immunodeficiency virus risk behavior among female substance abusers.

HIV is an increasingly critical and costly health problem for American women. Substance use plays a major role in human immunodeficiency virus (HIV) infection in women. There are several plausible explanations for the association between substance use and HIV risk behavior.

Brief Alcohol Intervention Among At-Risk Drinkers with Diabetes.

Twenty-eight patients with diabetes who screened positive for at-risk drinking were assigned to brief alcohol intervention (BAI) (n = 14) or standard care (SC) (n = 14) treatment conditions. All participants completed a baseline interview and one-, three, and six-month follow-up interviews. Across the six-month follow-up period, there was a significantly greater reduction in quantity of alcohol consumed in the BAI group.

At-risk drinking among diabetic patients.

Diabetes Mellitus is a serious chronic disease, affecting an increasing number of individuals worldwide. Adherence to diabetes self-care behaviors is key to the successful management of the disease. At-risk drinking is common among diabetic patients and is associated with inferior diabetes treatment adherence and outcomes, resulting in increased mortality and morbidity.

Psychological correlates of fasting and vigorous exercise as compensatory strategies in undergraduate women.

Vigorous exercise and fasting are commonly used compensatory behaviors. However, it is unknown how non-clinical individuals who engage in one or both of these compensatory behaviors differ from one another. This research compared women who engaged in both fasting and vigorous exercise as compensatory strategies (n=76) with women who engaged in either fasting (n=56) or excessive exercise (n=82) and women who employed no compensatory strategies (n=113) on body image/eating and psychological symptomatology.

Addressing HIV Risk Behavior Among Pregnant Drug Abusers: An Overview.

Both sex- and drug-related HIV risk behavior are common among pregnant drug abusers. In the absence of intervention, these behaviors are likely to continue throughout pregnancy, placing the women and their unborn children at risk of contracting HIV. Drug treatment programs have been found to have limited impact on these behaviors.

Eating disorders and alcohol use: group differences in consumption rates and drinking motives.

Alcohol use and drinking motives were investigated among college women divided into four probable eating disorder groups: Bulimia Nervosa, purging subtype (BN n=16) Binge Eating Disorder (BED n=30) Eating Disorder, Not Otherwise Specified (EDNOS n=85) and Non-Eating Disordered Controls (NEDC n=252). Participants completed questionnaires that assessed eating behaviors and attitudes, motives for drinking alcohol, quantity and frequency of alcohol use, and binge drinking. The BED group reported greater weekend alcohol consumption and binge drinking than the EDNOS and NEDC groups.

Coping and burden among informal HIV caregivers.

Objective: The aim of this study was to examine the role of coping on caregiver burden among a heterogeneous group of caregivers of persons living with HIV during the era of highly active antiretroviral therapy.

Methods: Burden and coping were examined among 176 caregivers of persons living with HIV. Three styles of coping were examined using a 7-item scale: active-approach (task), blame-withdrawal (emotion), and distancing (avoidance).

Predicting eating disorder group membership: an examination and extension of the sociocultural model.

The purpose of this research was to examine and extend portions of the sociocultural model of bulimia nervosa (Stice, E. (1994). Review of the evidence for a sociocultural model of bulimia nervosa and an exploration of the mechanisms of action.

Alcohol use and sexual risk behavior among human immunodeficiency virus-positive persons.

Background: This study was undertaken to determine if alcohol use is associated with sexual risk taking among human immunodeficiency virus (HIV)-infected persons.

Methods: Cross-sectional interviews of 262 HIV-infected patients in the Brown University AIDS Program were performed. Factors associated with any sexual activity, unsafe sexual activity, and a 4-fold typology of sexual risk were examined.

Alcohol Use Among Depressed Patients: The Need for Assessment and Intervention.

For many depressed patients, drinking may interfere with the successful treatment of their depression. Even among patients whose alcohol use does not rise to the level of an alcohol-use disorder, drinking can have a deleterious effect on depression and depressive symptoms and may dampen the impact of treatment for depression. However, subclinical drinking may not be addressed during the course of psychological or psychiatric treatment for depression.

An efficient method for high-fidelity BAC/PAC retrofitting with a selectable marker for mammalian cell transfection.

Large-scale genomic sequencing projects have provided DNA sequence information for many genes, but the biological functions for most of them will only be known through functional studies. Bacterial artificial chromosomes (BACs) and P1-derived artificial chromosomes (PACs) are large genomic clones stably maintained in bacteria and are very important in functional studies through transfection because of their large size and stability. Because most BAC or PAC vectors do not have a mammalian selection marker, transfecting mammalian cells with genes cloned in BACs or PACs requires the insertion into the BAC/PAC of a mammalian selectable marker.

Hypomethylation is necessary but not sufficient for V(D)J recombination within a transgenic substrate.

Although an inverse correlation between CpG methylation and V(D)J recombination has been demonstrated for both artificial substrates and endogenous genes, it is not known whether all hypomethylated targets are competent to rearrange or if other factors are required. We have created several artificial V(D)J recombination substrate transgenes whose methylation can be controlled by breeding into different genetic backgrounds. A transgene which contains the immunoglobulin heavy chain intronic enhancer rearranges efficiently in B lymphocytes when the transgene loci are unmethylated.

A cis-acting element that directs the activity of the murine methylation modifier locus Ssm1.

Silencing of chromosomal domains has been described in diverse systems such as position effect variegation in insects, silencing near yeast telomeres, and mammalian X chromosome inactivation. In mammals, silencing is associated with methylation at CpG dinucleotides, but little is known about how methylation patterns are established or altered during development. We previously described a strain-specific modifier locus, Ssm1, that controls the methylation of a complex transgene.

Asymmetric processing of coding ends and the effect of coding end nucleotide composition on V(D)J recombination.

The products of V(D)J recombination are coding and signal joints. We show that the nucleotide composition of the coding ends affects V(D)J recombination. The presence of Ts at the 5' end of either the 12 mer or the 23 mer recombination signal sequence (RSS) greatly decreases coding and signal joint formation, and Ts at the 5' ends of both RSSs eliminate recombination, suggesting that a step during the initiation phase of the recombination is affected.

The bulk chromatin structure of a murine transgene does not vary with its transcriptional or DNA methylation status.

The DNA methylation status of HRD, a murine transgene, can be controlled by the genetic background upon which it is carried. We found the transgene to be transcribed in competent tissues only when undermethylated. Chromatin structure over the transgene was assayed by nuclear accessibility with DNase I, MspI, and PstI.