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Two experiments evaluated the effect of supplementation with a bacterial direct-fed microbial on performance and apparent total-tract nutrient digestion of dairy cows. In experiment 1, 30 multiparous cows (75 ± 32 d in milk) were randomly assigned to 1 of 2 treatments fed for 10 wk. All cows were fed a diet containing 23.8% starch. Treatments were top dressed to rations twice daily and consisted of a combination of Lactobacillus animalis (1 × 109 cfu/d) and Propionibacterium freudenreichii (2 × 109 cfu/d; LAPF) or carrier alone (CON). In experiment 2, 6 ruminally cannulated cows (123 ± 129 d in milk) were randomly assigned to a crossover design with two 6-wk periods. Cows received the same CON or LAPF treatment as in experiment 1. Cows were fed the same 23.8% starch diet as experiment 1 during wk 1 through 5 of each period, and then cows were abruptly switched to a 31.1% starch diet for wk 6. For both experiments, intake and milk yield were measured daily, and milk samples were collected weekly. In experimentd to increase starch digestion compared with CON, but the differences were very small (0.59 vs. 0.78% and 98.74 vs. 98.46%, respectively). Digestion of other nutrients was unaffected. In experiment 2, LAPF increased rumen pH following the abrupt switch to the high-starch diet, but milk yield was lower for LAPF compared with CON (35.7 vs. 33.2 kg/d). Contrary to the decrease in fecal starch with LAPF observed in experiment 1, fecal starch tended to be increased by LAPF following the abrupt ration change in experiment 2 (2.97 vs. 2.15%). Few effects of treatment on rumen and fecal microbial populations were detectable. Under the conditions used in our experiments, addition of the bacterial direct-fed microbials did not have a marked effect on animal performance, ruminal measures, or total-tract nutrient digestion.Milk production systems in several countries show considerable differences between seasons. For example, in the Netherlands, cows are kept inside and fed silage in winter, whereas they are on pasture in summer. The differences between seasons affect milk yield and composition and might influence the genetic background of milk production traits. The objective of this study was to estimate phenotypic and genetic effects of season on milk production traits. For this purpose, 19,286 test-day milk production records of 1,800 first-parity Dutch Holstein-Frisian cows were available, and these cows were genotyped using a 50K SNP panel. Phenotypic effects of season were significant for all milk production traits. Effects of season were large for milk fat yield, fat content, and protein content. Genetic correlations between milk production traits in different seasons showed that genotype by season interaction effects were relatively small for most milk production traits. The genetic background of protein content and lactose content seems to be sensitive to seasonal effects. Furthermore, the genetic correlations between spring and autumn differed significantly from unity for almost all milk production traits. A genome-wide association study for genotype by season interaction identified chromosomal regions on BTA3, BTA14, BTA20, and BTA25 that showed genotype by season interaction effects, including a region containing DGAT1, which showed interaction effects for fat content and protein content.On-farm culture (OFC) systems facilitate pathogen-based mastitis management and can facilitate antimicrobial stewardship on dairy farms. Interpretation of the results, however, may present a challenge for those with limited microbiology experience. Here, we compared results of 3 OFC systems interpreted by trained and untrained observers against results of a standard laboratory reference method (aerobic culture and mass spectrometry). Milk samples (280 quarter and 60 composite) were selected from submissions for routine diagnostic testing to Quality Milk Production Services (Cornell University, Ithaca, NY) between August 2017 and January 2018. Samples were cultured simultaneously using the standard laboratory reference method and 3 commercially available OFC systems that varied in detail of pathogen identification (provided in parentheses) as follows (1) Minnesota Easy Culture System II Bi-plate (University of Minnesota Laboratory for Udder Health, St. Paul; gram-positive, gram-negative), (2) Minnesota Easy Cuplate and AccuMast), Lactococcus spp., and Enterococcus spp. (AccuMast) when interpreted by the trained observer, and fair to moderate agreement was found (κ = 0.31-0.53) among untrained observers. Across all 3 OFC, agreement was almost perfect (κ = 0.80-0.89) for Staphylococcus aureus for the trained observer, and moderate to substantial (κ = 0.56-0.61) for untrained observers. We concluded that all 3 OFC appeared suitable to support pathogen-based mastitis management when operated by trained observers. Training beyond the instruction manual is a prerequisite to make OFC systems useful for pathogen-based mastitis management.Research has cited structural racism as a determinate of black Americans' susceptibility to COVID-19. Using the flu surveillance system as a template, the U.S. has collected surveillance data on COVID-19. The U.S. also has rich databases on drug use and treatment. The U.S. should use data, combined with epidemiologic modeling that includes accurate proxies for structural racism, to direct policy, treatment, and COVID-19 vaccine distribution priorities. This paper provides a baseline of where we are and suggestions to consider to achieve health parity in populations of color.Research has shown that benzodiazepines and mental health disorders can increase the likelihood of repeat overdose, but researchers have not explored this association in Tennessee (TN). We examined benzodiazepines, polysubstance overdose status with/without benzodiazepines, and mental health comorbidities with repeat overdose using statewide data in TN. This study analyzed TN hospital discharge data on nonfatal overdoses for patients ages 18-64 from 2012 to 2016 for 21,066 patients with an initial inpatient visit and 36,244 patients with an initial outpatient visit. The study assessed each patient at one year after initial overdose to determine likelihood of repeat overdose. We used a Cox proportional hazards model to compute hazard ratios (HRs) and 95% confidence intervals (CIs) to determine the factors associated with repeat nonfatal overdose. Repeat overdose rates, by one year after index overdose, were 12.9% of the sample for inpatients and 13.9% of the sample for outpatients. The visit factors (overdose characteristics and comorbidities determined from the initial visit) that the study found to be independently associated with repeat overdoses among inpatients were polysubstance status (HR 0.88, 95% CI 0.78-0.99), benzodiazepine/polysubstance interaction (HR 1.29, 95% CI 1.02-1.64), and presence of any mental health disorder (HR 1.28, 95% CI 1.18-1.39). For outpatients, the benzodiazepine/polysubstance interaction (HR 1.21, 95% CI 1.01-1.44) was significant without adjusting for demographic factors. We found evidence that benzodiazepine/polysubstance status and mental health disorders were associated with repeat overdose for inpatients, and that benzodiazepine/polysubstance status was associated with repeat overdose for outpatients. Findings support the need to include polysubstance status and mental health in overdose prevention efforts.
Methadone maintenance treatment is a life-saving treatment for people with opioid use disorders (OUD). The coronavirus pandemic (COVID-19) has introduced many concerns surrounding access to opioid treatment. In March 2020, the Substance Abuse and Mental Health Services Administration (SAMHSA) issued guidance allowing for the expansion of take-home methadone doses. We sought to describe changes to treatment experiences from the perspective of persons receiving methadone at outpatient treatment facilities for OUD.
We conducted an in-person survey among 104 persons receiving methadone from three clinics in central North Carolina in June and July 2020. Surveys collected information on demographic characteristics, methadone treatment history, and experiences with take-home methadone doses in the context of COVID-19 (i.e., before and since March 2020).
Before COVID-19, the clinic-level percent of participants receiving any amount of days' supply of take-home doses at each clinic ranged from 56% to 82%, while to patients seeking OUD treatment.Since the onset of the COVID-19 pandemic, several federal, state, and payor policy changes have facilitated the uptake of telehealth service delivery. These changes have resulted in a significant uptick in the utilization of maternal mental health and substance use disorder screening and treatment services for pregnant and postpartum women. The Medical University of South Carolina's [MUSC] Women's Reproductive Behavioral Health Program provides outpatient mental health and substance use treatment to pregnant and postpartum women within obstetric practices. With the onset of COVID-19, our program converted all of its screening for and treatment of mental health and substance use disorders to remote platforms. Lessons learned during this time may lay the foundation for transitioning to sustainable telehealth-based referral and delivery of substance use treatment more broadly.
Buprenorphine treatment remains unavailable in many jails and prisons, but use of nonprescribed (i.e., diverted) buprenorphine has been reported in these settings. The purpose of this analysis is to explore the experiences and motivations behind the use of diverted buprenorphine among recently incarcerated individuals.
Adults with opioid misuse who were recently released from jail or prison (n= 26; 58% male) completed semi-structured qualitative interviews as part of a study focused on buprenorphine diversion in the criminal justice system. Qualitative interviews explored participants' incarceration experiences and opioid use background, knowledge of buprenorphine and other substance use in jails/prisons, personal use of buprenorphine while incarcerated, reasons for using buprenorphine while incarcerated, and knowledge of how buprenorphine is brought into and acquired in jails/prisons. The study recorded and transcribed interviews, and analyzed the narratives for content related to these predetermined the
Participants reported widespread availability of diverted buprenorphine in criminal justice facilities, and characterized reasons for its use specific to these contexts. More research is needed to determine the impact of expanding buprenorphine treatment in jails and prisons on inmates' use of diverted buprenorphine, and future research should explore these intersections as treatment initiation opportunities.
Adaptive interventions, sometimes referred to as "stepped care", are those interventions in which the type or dosage of treatment offered to patients is tailored to baseline clinical presentation and then adjusted over time in response to patient progress or lack thereof. Currently, no adaptive brief interventions exist specifically for alcohol use disorder (AUD).
This study used a sequential multiple assignment randomized trial design with 160 individuals with AUD recruited both locally and nationally who had a goal to reduce or abstain from drinking. Participants received brief advice (BA) and then the study reassessed them three weeks later; the study randomized those who did not respond to BA, defined as reducing their drinking to low-risk guidelines, to two session of motivational interviewing (MI) or more BA. The study then reassessed participants at week 8. The study re-randomized nonresponders to receive either MI alone or MI plus behavioral self-control therapy (BSCT), also referred to as coping skills therapy, and evaluated participants at week 13.
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