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2.
AIDS Care ; 36(2): 195-203, 2024 Feb.
Article in English | MEDLINE | ID: mdl-37321981

ABSTRACT

Mental illness is prevalent among people living with HIV (PLHIV) and hinders engagement in HIV care. While financial incentives are effective at improving mental health and retention in care, the specific effect of such incentives on the mental health of PLHIV lacks quantifiable evidence. We evaluated the impact of a three-arm randomized controlled trial of a financial incentive program on the mental health of adult antiretroviral therapy (ART) initiates in Tanzania. Participants were randomized 1:1:1 into one of two cash incentive (combined; provided monthly conditional on clinic attendance) or the control arm. We measured the prevalence of emotional distress, depression, and anxiety via a difference-in-differences model which quantifies changes in the outcomes by arm over time. Baseline prevalence of emotional distress, depression, and anxiety among the 530 participants (346 intervention, 184 control) was 23.8%, 26.6%, and 19.8%, respectively. The prevalence of these outcomes decreased substantially over the study period; additional benefit of the cash incentives was not detected. In conclusion, poor mental health was common although the prevalence declined rapidly during the first six months on ART. The cash incentives did not increase these improvements, however they may have indirect benefit by motivating early linkage to and retention in care.Clinical Trial Number: NCT03341556.


Subject(s)
HIV Infections , Motivation , Adult , Humans , Tanzania/epidemiology , Mental Health , HIV Infections/drug therapy , HIV Infections/epidemiology , HIV Infections/psychology , Anxiety/epidemiology
3.
J Med Internet Res ; 23(9): e29875, 2021 09 15.
Article in English | MEDLINE | ID: mdl-34524089

ABSTRACT

BACKGROUND: Digital clinical measures collected via various digital sensing technologies such as smartphones, smartwatches, wearables, ingestibles, and implantables are increasingly used by individuals and clinicians to capture health outcomes or behavioral and physiological characteristics of individuals. Although academia is taking an active role in evaluating digital sensing products, academic contributions to advancing the safe, effective, ethical, and equitable use of digital clinical measures are poorly characterized. OBJECTIVE: We performed a systematic review to characterize the nature of academic research on digital clinical measures and to compare and contrast the types of sensors used and the sources of funding support for specific subareas of this research. METHODS: We conducted a PubMed search using a range of search terms to retrieve peer-reviewed articles reporting US-led academic research on digital clinical measures between January 2019 and February 2021. We screened each publication against specific inclusion and exclusion criteria. We then identified and categorized research studies based on the types of academic research, sensors used, and funding sources. Finally, we compared and contrasted the funding support for these specific subareas of research and sensor types. RESULTS: The search retrieved 4240 articles of interest. Following the screening, 295 articles remained for data extraction and categorization. The top five research subareas included operations research (research analysis; n=225, 76%), analytical validation (n=173, 59%), usability and utility (data visualization; n=123, 42%), verification (n=93, 32%), and clinical validation (n=83, 28%). The three most underrepresented areas of research into digital clinical measures were ethics (n=0, 0%), security (n=1, 0.5%), and data rights and governance (n=1, 0.5%). Movement and activity trackers were the most commonly studied sensor type, and physiological (mechanical) sensors were the least frequently studied. We found that government agencies are providing the most funding for research on digital clinical measures (n=192, 65%), followed by independent foundations (n=109, 37%) and industries (n=56, 19%), with the remaining 12% (n=36) of these studies completely unfunded. CONCLUSIONS: Specific subareas of academic research related to digital clinical measures are not keeping pace with the rapid expansion and adoption of digital sensing products. An integrated and coordinated effort is required across academia, academic partners, and academic funders to establish the field of digital clinical measures as an evidence-based field worthy of our trust.


Subject(s)
Delivery of Health Care , Smartphone , Humans
4.
Sch Psychol ; 35(3): 215-225, 2020 May.
Article in English | MEDLINE | ID: mdl-32191064

ABSTRACT

Elementary school multicultural reading curricula include characters with diverse proper names, which are often unfamiliar and differ phonetically from students' native language. These names could impact reading outcomes by increasing students' cognitive load and/or creating cognitive disfluency. In Study 1, students in grades 1 through 2 read a standard passage including common names and a matched passage including unfamiliar names of Russian origin. A paired samples t test indicated unfamiliar diverse names in grade-level passages significantly reduced students' reading comprehension. Study 2 was designed to determine if preteaching diverse names would mitigate their adverse effects on reading comprehension. Results indicated second-grade students who received preteaching comprehended significantly more of the passage than those who did not receive preteaching. Discussion focuses on the need for research clarifying the relationship between multicultural learning materials and academic outcomes and validating efficient methods for familiarizing students with difficult, phonetically unfamiliar words. (PsycInfo Database Record (c) 2020 APA, all rights reserved).


Subject(s)
Comprehension , Cultural Diversity , Curriculum , Names , Reading , Students , Child , Female , Humans , Male
5.
Mol Psychiatry ; 24(10): 1513-1522, 2019 10.
Article in English | MEDLINE | ID: mdl-29523870

ABSTRACT

Patients with psychotic disorders are at high risk for type 2 diabetes mellitus, and there is increasing evidence that patients display glucose metabolism abnormalities before significant antipsychotic medication exposure. In the present study, we examined insulin action by quantifying insulin sensitivity in first-episode psychosis (FEP) patients and unaffected siblings, compared to healthy individuals, using a physiological-based model and comprehensive assessment battery. Twenty-two unaffected siblings, 18 FEP patients, and 15 healthy unrelated controls were evaluated using a 2-h oral glucose tolerance test (OGTT), with 7 samples of plasma glucose and serum insulin concentration measurements. Insulin sensitivity was quantified using the oral minimal model method. Lipid, leptin, free fatty acids, and inflammatory marker levels were also measured. Anthropometric, nutrient, and activity assessments were conducted; total body composition and fat distribution were determined using whole-body dual-energy X-ray absorptiometry. Insulin sensitivity significantly differed among groups (F = 6.01 and 0.004), with patients and siblings showing lower insulin sensitivity, compared to controls (P = 0.006 and 0.002, respectively). Body mass index, visceral adipose tissue area (cm2), lipids, leptin, free fatty acids, inflammatory markers, and activity ratings were not significantly different among groups. There was a significant difference in nutrient intake with lower total kilocalories/kilogram body weight in patients, compared to siblings and controls. Overall, the findings suggest that familial abnormal glucose metabolism or a primary insulin signaling pathway abnormality is related to risk for psychosis, independent of disease expression and treatment effects. Future studies should examine underlying biological mechanisms of insulin signaling abnormalities in psychotic disorders.


Subject(s)
Diabetes Mellitus, Type 2/etiology , Insulin/metabolism , Psychotic Disorders/metabolism , Adult , Anthropometry , Antipsychotic Agents/therapeutic use , Blood Glucose/analysis , Blood Glucose/metabolism , Body Composition , Body Mass Index , Diabetes Mellitus, Type 2/metabolism , Female , Glucose/metabolism , Humans , Insulin/blood , Insulin Resistance/physiology , Leptin/blood , Male , Psychotic Disorders/complications , Siblings , Signal Transduction/physiology , Triglycerides/blood
6.
Biol Psychiatry ; 84(11): 797-802, 2018 12 01.
Article in English | MEDLINE | ID: mdl-28527566

ABSTRACT

BACKGROUND: Brain energy metabolism is critical for supporting synaptic function and information processing. A growing body of evidence suggests abnormalities in brain bioenergetics in psychiatric disorders, including both bipolar disorder (BD) and schizophrenia. 31P magnetic resonance spectroscopy provides a noninvasive window into these processes in vivo. Using this approach, we previously showed that patients with BD show normal adenosine triphosphate (ATP) and phosphocreatine levels at rest but cannot maintain normal ATP levels in the visual cortex during times of high energy demand (photic stimulation). Because ATP is replenished from phosphocreatine via the creatine kinase reaction, we have now measured the creatine kinase forward reaction rate constant in BD. METHODS: We studied 20 patients experiencing a first episode of BD and 28 healthy control participants at 4T and quantified creatine kinase forward reaction rate constant using 31P magnetization transfer magnetic resonance spectroscopy as described previously. RESULTS: We found a significant reduction in creatine kinase forward reaction rate constant in the BD group (F = 4.692, p = .036), whereas brain ATP and phosphocreatine concentrations, as well as brain parenchymal pH, were normal. CONCLUSIONS: These results pinpoint a specific molecular mechanism underlying our previous observation of an inability to replenish brain ATP during times of high energy demand in BD.


Subject(s)
Adenosine Triphosphate/metabolism , Bipolar Disorder/metabolism , Brain/metabolism , Creatine Kinase/metabolism , Phosphocreatine/metabolism , Adolescent , Adult , Case-Control Studies , Energy Metabolism , Female , Humans , Magnetic Resonance Spectroscopy , Male , Photic Stimulation , Young Adult
7.
Schizophr Res ; 187: 11-16, 2017 09.
Article in English | MEDLINE | ID: mdl-28258794

ABSTRACT

BACKGROUND: Brain bioenergetic anomalies and redox dysregulation have been implicated in the pathophysiology of psychotic disorders. The present study examined brain energy-related metabolites and the balance between nicotinamide adenine dinucleotide metabolites (oxidized NAD+ and reduced NADH) using 31P-magnetic resonance spectroscopy (31P-MRS) in unaffected siblings, compared to first episode psychosis (FEP) patients and healthy controls. METHODS: 21 unaffected siblings, 32 FEP patients (including schizophrenia spectrum and affective psychoses), and 21 controls underwent 31P-MRS in the frontal lobe (6×6×4cm3) on a 4T MR scanner, using custom-designed dual-tuned surface coil with outer volume suppression. Brain parenchymal pH and steady-state metabolite ratios of high energy phosphate compounds were measured. NAD+ and NADH levels were determined using a 31P-MRS fitting algorithm. 13 unaffected sibling-patient pairs were related; other patients and siblings were unrelated. ANCOVA analyses were used to examine 31P-MRS measures, with age and gender as covariates. RESULTS: The phosphocreatine/adenosine triphosphate ratio was significantly reduced in both unaffected siblings and FEP patients, compared to controls. NAD+/NADH ratio was significantly reduced in patients compared to siblings and controls, with siblings showing a reduction in NAD+/NADH compared to controls that was not statistically significant. Compared to patients and controls, siblings showed significantly reduced levels of NAD+. Siblings did not differ from patients or controls on brain pH. DISCUSSION: Our results indicate that unaffected siblings show some, but not all the same abnormalities in brain energy metabolites and redox state as FEP patients. Thus, 31P-MRS studies may identify factors related both to risk and expression of psychosis.


Subject(s)
Bipolar Disorder/metabolism , Frontal Lobe/metabolism , Magnetic Resonance Spectroscopy , Psychotic Disorders/metabolism , Schizophrenia/metabolism , Siblings , Adolescent , Adult , Bipolar Disorder/diagnostic imaging , Bipolar Disorder/drug therapy , Female , Frontal Lobe/diagnostic imaging , Humans , Hydrogen-Ion Concentration , Magnetic Resonance Spectroscopy/methods , Male , NAD/metabolism , Oxidation-Reduction , Phosphorus Isotopes , Psychotic Disorders/diagnostic imaging , Psychotic Disorders/drug therapy , Psychotropic Drugs/therapeutic use , Schizophrenia/diagnostic imaging , Schizophrenia/drug therapy , Young Adult
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