Culture contamination, end-product toxicity, and energy efficient product recovery are long-standing bioprocess challenges. To solve these problems, we propose a high-pressure fermentation strategy, ...coupled with in situ extraction using the abundant and renewable solvent supercritical carbon dioxide (scCO
), which is also known for its broad microbial lethality. Towards this goal, we report the domestication and engineering of a scCO
-tolerant strain of Bacillus megaterium, previously isolated from formation waters from the McElmo Dome CO
field, to produce branched alcohols that have potential use as biofuels. After establishing induced-expression under scCO
, isobutanol production from 2-ketoisovalerate is observed with greater than 40% yield with co-produced isopentanol. Finally, we present a process model to compare the energy required for our process to other in situ extraction methods, such as gas stripping, finding scCO
extraction to be potentially competitive, if not superior.
IMPORTANCE Early, safe, effective, and durable evidence-based interventions for children and adolescents with chronic migraine do not exist. OBJECTIVE To determine the benefits of cognitive ...behavioral therapy (CBT) when combined with amitriptyline vs headache education plus amitriptyline. DESIGN, SETTING, AND PARTICIPANTS A randomized clinical trial of 135 youth (79% female) aged 10 to 17 years diagnosed with chronic migraine (≥15 days with headache/month) and a Pediatric Migraine Disability Assessment Score (PedMIDAS) greater than 20 points were assigned to the CBT plus amitriptyline group (n = 64) or the headache education plus amitriptyline group (n = 71). The study was conducted in the Headache Center at Cincinnati Children’s Hospital between October 2006 and September 2012; 129 completed 20-week follow-up and 124 completed 12-month follow-up. INTERVENTIONS Ten CBT vs 10 headache education sessions involving equivalent time and therapist attention. Each group received 1 mg/kg/d of amitriptyline and a 20-week end point visit. In addition, follow-up visits were conducted at 3, 6, 9, and 12 months. MAIN OUTCOMES AND MEASURES The primary end point was days with headache and the secondary end point was PedMIDAS (disability score range: 0-240 points; 0-10 for little to none, 11-30 for mild, 31-50 for moderate, >50 for severe); both end points were determined at 20 weeks. Durability was examined over the 12-month follow-up period. Clinical significance was measured by a 50% or greater reduction in days with headache and a disability score in the mild to none range (<20 points). RESULTS At baseline, there were a mean (SD) of 21 (5) days with headache per 28 days and the mean (SD) PedMIDAS was 68 (32) points. At the 20-week end point, days with headache were reduced by 11.5 for the CBT plus amitriptyline group vs 6.8 for the headache education plus amitriptyline group (difference, 4.7 95% CI, 1.7-7.7 days; P = .002). The PedMIDAS decreased by 52.7 points for the CBT group vs 38.6 points for the headache education group (difference, 14.1 95% CI, 3.3-24.9 points; P = .01). In the CBT group, 66% had a 50% or greater reduction in headache days vs 36% in the headache education group (odds ratio, 3.5 95% CI, 1.7-7.2; P < .001). At 12-month follow-up, 86% of the CBT group had a 50% or greater reduction in headache days vs 69% of the headache education group; 88% of the CBT group had a PedMIDAS of less than 20 points vs 76% of the headache education group. Measured treatment credibility and integrity was high for both groups. CONCLUSIONS AND RELEVANCE Among young persons with chronic migraine, the use of CBT plus amitriptyline resulted in greater reductions in days with headache and migraine-related disability compared with use of headache education plus amitriptyline. These findings support the efficacy of CBT in the treatment of chronic migraine in children and adolescents. TRIAL REGISTRATION clinicaltrials.gov Identifier: NCT00389038
The Young Black Men, Masculinities, and Mental Health (YBMen) project is a Facebook-based intervention that provides mental health education and social support to young Black men. The YBMen project ...was created to better understand and address the pressures and needs of young Black men, particularly with regard to issues related to their conceptualization of masculinity and mental health. Black men from a 2-year liberal arts college in the Midwest (United States) enrolled in the YBMen pilot project. The purpose of this study is to report what participants in the YBMen pilot project liked and disliked about the intervention, along with their suggestions for improvement. Qualitative results from the 8 Black men who actively participated in the YBMen Facebook intervention and completed the postintervention interview are reported. A systematic analysis identified 9 subthemes that described participants' reactions to different components and characteristics of the Facebook intervention. Results indicated that opportunities for relationship building and connectivity, coupled with engaging popular culture references used in the intervention encouraged young Black men to actively participate in the YBMen Facebook intervention. The YBMen project has potential to improve the health and well-being of young Black men by providing nontraditional resources that are easily accessible, culturally sensitive, and gender-specific. Implications of the YBMen project as an effective Internet-based program that promotes mental health and increases social support among young Black men are discussed.
Research on coping mechanisms among Black Americans is robust, yet there is a dearth of studies that use qualitative approaches to examine coping specifically among young Black men. The current and ...historical landscape of race relations in the United States calls for additional concern and exploration of this topic. To fill gaps in this area, this study uncovered the ways Black college men cope with various stressors that impact their mental health. Eleven qualitative interviews were conducted with 18- to 25-year-old Black men enrolled at a college in the Midwest who participated in the Young Black Men, Masculinities, and Mental Health (YBMen) project. Data were analyzed using a rigorous and accelerated data reduction technique that involved transferring transcript data onto spreadsheets, reducing the data, and conducting a rigorous content analysis to generate themes and subthemes. Participants reported that Black college men cope with stress by discussing their issues with members of their social support networks, engaging in physical activities, and relying on themselves. Some respondents reported that they intentionally avoided dealing with their mental health, whereas others attempted to make sense of their problems. Substance use, violence, and anger were all identified as markers of unaddressed stressors. Stigma emerged as a barrier to seeking help. Study findings highlight within-group differences among Black college men. Mental health researchers must continue to develop creative ways to examine stress and coping so that resources can become more culturally relevant and readily available both within and outside of the spaces Black men occupy.
Public Policy Relevance Statement
When considering the current state of race relations in the United States, the growing concern for the ways members of marginalized groups cope with societal and environmental stressors, particularly young Black men, becomes even more important. Findings from the current study highlight the various stressors young adult Black men oftentimes face, along with providing additional insight into the myriad ways they cope with these events. Implications for researchers and practitioners are discussed.
Individuals with substance use disorders (SUD) have disproportionately high rates of unintended pregnancy. Reducing harm associated with this risk and its biopsychosocial consequences requires ...evidence-based, non-coercive interventions that ensure access to contraception for individuals who choose to prevent pregnancy. We examined feasibility and impact of SexHealth Mobile, a mobile unit-based intervention that aimed to increase access to patient-centered contraceptive care for individuals in SUD recovery programs.
We conducted a quasi-experimental study (enhanced usual care EUC followed by intervention) at three recovery centers with participants (n = 98) at risk for unintended pregnancy. EUC participants were offered printed information on community locations where they could access contraception care. SexHealth Mobile participants were offered same-day, onsite clinical consultation on a medical mobile unit and contraception if desired. The primary outcome was use of contraception (hormonal or intrauterine device) at one-month post-enrollment. Secondary outcomes were at two-weeks and three-months. Confidence in preventing unintended pregnancy, reasons for non-use of contraception at follow-up, and intervention feasibility were also assessed.
Participants (median age = 31, range 19-40) enrolled in the intervention period were almost 10 times more likely to be using contraception at one-month (51.5%) versus the those enrolled in the EUC period (5.4%) (unadjusted relative risk URR = 9.3 95%CI: 2.3-37.1; adjusted relative risk ARR = 9.8 95%CI: 2.4-39.2). Intervention participants were also more likely to be using contraception at 2-weeks (38.7% vs. 2.6%; URR = 14.3 95%CI: 2.0-104.1) and three-months (40.9% vs. 13.9%; URR = 2.9 95% CI: 1.1-7.4). EUC participants reported more barriers (cost, time) and less confidence in preventing unintended pregnancies. Mixed-methods feasibility data indicated high acceptability and feasible integration into recovery settings.
Mobile contraceptive care based on principles of reproductive justice and harm reduction reduces access barriers, is feasible to implement in SUD recovery settings, and increases contraception use. Expanding interventions like SexHealth Mobile may help reduce harm from unintended pregnancies among individuals in SUD recovery. Trial Registration NCT04227145.
Conventional definitions of mental health, manhood, and social support create barriers to accessing behavioral health care for Black men ages 18 to 30. Targeted behavioral health interventions ...sensitive to culture, social norms, and gender that circumvent these barriers are desperately needed to improve access and integrated care for this group. This article reports mixed methods findings from the 2017 iteration of the Young Black Men, Masculinities, and Mental Health (YBMen) project, a social media–based, psychoeducational program that promotes mental health, progressive definitions of manhood, and sustainable social support for Black men. Young Black men (n = 350) across two universities in the Midwest completed baseline surveys on their mental health, definitions of manhood, and social support. Forty of the men participated in the YBMen intervention and at postintervention reported experiencing fewer depressive symptoms on the Patient Health Questionnaire (PHQ-9, Z = −2.05, p < .01) and the Gotland Male Depression Scale (GMDS; Z = −1.76, p < .05). There were also changes on the Conformity to Masculine Norms Inventory (CMNI) for Self-Reliance (Z = −0.34, p = .26) and Heterosexual Self-Presentation (Z = −0.18, p = .59), though these changes were not statistically significant. A qualitative review of postintervention interviews revealed participants’ appreciation of the YBMen project and its influence on their mental health, manhood, and social support. Programmatic efforts that support the behavioral health, positive development, and social relationships of Black men translate into positive families, communities, and experiences as they live, learn, love, and work over the life course.
We compared headache frequency trajectories between clinical trial participants who received cognitive-behavioral therapy (CBT) and amitriptyline (CBT+A) or headache education (HE) and amitriptyline ...(HE+A) to determine if there was a differential time course of treatment response between the groups. One hundred thirty-five patients (age 10-17 years) diagnosed with chronic migraine participated, attending 8 one-hour one-on-one CBT or HE sessions with a trained psychologist for 8 weekly sessions, 2 sessions at weeks 12 and 16, and a post-treatment visit at week 20. Participants kept daily headache diaries and completed take-home assignments between visits. Data from daily headache diaries are presented for each day and according to 28-day periods. Trajectories of improvement indicate initial decrease in headache days began during the first month of treatment, for both groups, and continued to decrease throughout treatment. The CBT+A group had greater daily improvement than the HE+A group. A significantly greater proportion of the CBT+A group had a ≥50% reduction in headache days each month, and a significantly greater proportion of the CBT+A group had ≤4 headache days per month in months 3 through 5. Results indicate the trajectory of decrease in headache days is significantly better for patients receiving CBT+A versus HE+A.
This article presents daily information about headache frequency over a 20-week clinical trial. Youth with chronic migraine who received CBT+A improved faster than those in the control group. Findings provide clinicians with evidence-based expectations for treatment response over time and ways of monitoring treatment success.
clinicaltrials.gov identifier NCT00389038.
The cerebral cortex serves a primary role in the pathogenesis of migraine. This aberrant brain activation in migraine can be noninvasively detected with magnetoencephalography (MEG). The objective of ...this study was to investigate the differences in motor cortical activation between attacks (ictal) and pain free intervals (interictal) in children and adolescents with migraine using both low- and high-frequency neuromagnetic signals. Thirty subjects with an acute migraine and 30 subjects with a history of migraine, while pain free, were compared to age- and gender-matched controls using MEG. Motor cortical activation was elicited by a standardized, validated finger-tapping task. Low-frequency brain activation (1~50 Hz) was analyzed with waveform measurements and high-frequency oscillations (65-150 Hz) were analyzed with wavelet-based beamforming. MEG waveforms showed that the ictal latency of low-frequency brain activation was significantly delayed as compared with controls, while the interictal latency of brain activation was similar to that of controls. The ictal amplitude of low-frequency brain activation was significantly increased as compared with controls, while the interictal amplitude of brain activation was similar to that of controls. The ictal source power of high-frequency oscillations was significantly stronger than that of the controls, while the interictal source power of high-frequency oscillations was significantly weaker than that of controls. The results suggest that aberrant low-frequency brain activation in migraine during a headache attack returned to normal interictally. However, high-frequency oscillations changed from ictal hyper-activation to interictal hypo-activation. Noninvasive assessment of cortical abnormality in migraine with MEG opens a new window for developing novel therapeutic strategies for childhood migraine by maintaining a balanced cortical excitability.
Celotno besedilo
Dostopno za:
DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, SIK, UILJ, UKNU, UL, UM, UPUK
OBJECTIVES:To examine treatment adherence among children and adolescents with chronic migraine who volunteered to be in a clinical trial using 3 measurestreatment session attendance, therapy homework ...completion, and preventive medication use by daily diary.
MATERIALS AND METHODS:Analyses are secondary from a trial of 135 youth aged 10 to 17 years diagnosed with chronic migraine and with a Pediatric Migraine Disability Score over 20. Participants were randomly assigned to cognitive-behavioral therapy plus amitriptyline (CBT+A, N=64) or headache education plus amitriptyline (HE+A, N=71). Therapists recorded session attendance. Completion of homework/practice between sessions was reported to therapists by patients. Patients reported preventive medication adherence using a daily headache diary.
RESULTS:Mean session attendance adherence out of 10 treatment sessions was 95% for CBT+A and 99% for HE+A. CBT+A participants reported completing a mean of 90% of home practice of CBT skills between the 10 sessions. Participants reported taking amitriptyline daily at a mean level of 90% when missing diaries were excluded and 79% when missing diaries were considered as missed doses of medication.
DISCUSSION:Our findings demonstrate that youth with chronic migraine who agree to be a part of a clinical trial do quite well at attending therapy sessions, and report that they are adherent to completing home/practice between sessions and taking medication. These results lend further support to consideration of CBT+A as a first-line treatment for youth with chronic migraine and suggest that measurement of adherence when this treatment is provided in practice will be important.
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