59 results on '"M, O'Hearn"'
Search Results
2. Acute gut microbiome changes after traumatic brain injury are associated with chronic deficits in decision-making and impulsivity in male rats
- Author
-
Michelle A. Frankot, Christopher M. O'Hearn, Alyssa M. Blancke, Bryan Rodriguez, Kristen M. Pechacek, Jasleen Gandhi, Gangqing Hu, Kris M. Martens, and Cole Vonder Haar
- Subjects
Behavioral Neuroscience - Abstract
The mechanisms underlying chronic psychiatric-like impairments after traumatic brain injury (TBI) are currently unknown. The goal of the present study was to assess the role of diet and the gut microbiome in psychiatric symptoms after TBI. Rats were randomly assigned to receive a high-fat diet (HFD) or calorie-matched low-fat diet (LFD). After 2 weeks of free access, rats began training on the rodent gambling task (RGT), a measure of risky decision-making and motor impulsivity. After training, rats received a bilateral frontal TBI or a sham procedure and continued postinjury testing for 10 weeks. Fecal samples were collected before injury and 3-, 30-, and 60 days postinjury to evaluate the gut microbiome. HFD altered the microbiome, but ultimately had low-magnitude effects on behavior and did not modify functional outcomes after TBI. Injury-induced functional deficits were far more robust; TBI substantially decreased optimal choice and increased suboptimal choice and motor impulsivity on the RGT. TBI also affected the microbiome, and a model comparison approach revealed that bacterial diversity measured 3 days postinjury was predictive of chronic psychiatric-like deficits on the RGT. A functional metagenomic analysis identified changes to dopamine and serotonin synthesis pathways as a potential candidate mechanism. Thus, the gut may be a potential acute treatment target for psychiatric symptoms after TBI, as well as a biomarker for injury and deficit severity. However, further research will be needed to confirm and extend these findings. (PsycInfo Database Record (c) 2022 APA, all rights reserved).
- Published
- 2022
3. Two Cases of
- Author
-
Elizabeth J, Rossin, Marisa, Tieger, Narsing A, Rao, Thomas M, O'Hearn, Dean, Eliott, and David M, Wu
- Subjects
Endophthalmitis ,Postoperative Complications ,Vitrectomy ,Humans ,Cataract Extraction ,Propionibacterium acnes ,Cataract ,Eye Infections, Bacterial ,Gram-Positive Bacterial Infections ,Anti-Bacterial Agents ,Retrospective Studies - Abstract
This article describes two cases of delayed-onset
- Published
- 2022
4. Unilateral Parietal Brain Injury Increases Risk-Taking on a Rat Gambling Task
- Author
-
Christopher M. O'Hearn, Cole Vonder Haar, Cory Whirtley, Kristen M Pechacek, and Jenny E. Ozga-Hess
- Subjects
0301 basic medicine ,Male ,medicine.medical_specialty ,Traumatic brain injury ,Decision Making ,Brain damage ,Impulsivity ,Article ,Task (project management) ,03 medical and health sciences ,Executive Function ,0302 clinical medicine ,Physical medicine and rehabilitation ,Risk-Taking ,Developmental Neuroscience ,Parietal Lobe ,Concussion ,medicine ,Animals ,Rats, Long-Evans ,Behavior, Animal ,business.industry ,medicine.disease ,Executive functions ,Rats ,030104 developmental biology ,Neurology ,Brain Injuries ,Rotarod Performance Test ,Impulsive Behavior ,medicine.symptom ,Risk taking ,business ,030217 neurology & neurosurgery ,Executive dysfunction - Abstract
Traumatic brain injury (TBI) affects millions of individuals every year. Many of these injuries lead to lasting effects, particularly impairments in domains broadly classified as executive functions, such as impulse control and decision-making. While these impairments have been historically associated with frontal brain damage, other injuries such as concussion or parietal injury also contribute to similar dysfunction. However, it is unknown whether animal models of TBI would replicate these broad effects that are observed in human patients. In the current study, we delivered a unilateral parietal controlled cortical impact injury and assessed the performance of rats on a motoric task (rotarod) and a test of decision-making and impulsivity (rodent gambling task). TBI rats demonstrated significant motor impairments on the rotarod task; however, this did not extend to difficulties inhibiting motor actions (impulsivity). In addition, TBI caused chronic alterations to risk-based decision-making, extending out to 12 weeks post-injury. Specifically, rats with TBI preferred the riskiest, and most suboptimal option over all others. The current data suggest that models of unilateral TBI are sufficient for replicating some aspects of executive dysfunction (risky decision-making), while others are limited to frontal damage (impulsivity). These models may be used to develop therapeutics targeted at the chronic post-injury period when these symptoms often manifest in patients, a critically understudied area in preclinical TBI research.
- Published
- 2020
5. Stimulus contributions to operant resurgence
- Author
-
Tyler D. Nighbor, Stephanie L. Kincaid, Kennon A. Lattal, and Christopher M. O'Hearn
- Subjects
03 medical and health sciences ,Behavioral Neuroscience ,0302 clinical medicine ,05 social sciences ,0501 psychology and cognitive sciences ,Experimental and Cognitive Psychology ,050102 behavioral science & comparative psychology ,Stimulus (physiology) ,Psychology ,Neuroscience ,030217 neurology & neurosurgery - Abstract
In two experiments, pigeons were exposed to a three-phase resurgence procedure (train Response A; extinguish Response A and train Response B; extinguish Response B). In the first experiment, the stimuli associated with phases were different, resulting in a resurgence procedure combined with an ABC renewal procedure. Presenting the novel stimulus, C, during extinction of both responses in the third phase resulted in minimal resurgence. Subsequently, substituting the original training Stimulus A for Stimulus C resulted in resurgence with all pigeons. In the second experiment, resurgence with the same stimuli present in all three phases of the resurgence procedure (AAA) was compared concurrently with a resurgence procedure in which the ABC renewal procedure used in Experiment 1 was superimposed. Substantially more resurgence occurred with the AAA procedure compared to the ABC procedure. Although ABC renewal in combination with the resurgence procedure generated some resurgence, such recurrent responding was attenuated relative to that observed when the stimulus conditions were constant across phases. Combined with earlier research showing the enhancing effects of combining resurgence and ABA renewal procedures, the present results elaborate on how stimuli correlated with certain behavioral histories affect the course of operant resurgence.
- Published
- 2018
6. Exposure to uncertainty mediates the effects of traumatic brain injury on probabilistic decision-making in rats
- Author
-
Cole Vonder Haar, Catharine A. Winstanley, and Christopher M. O'Hearn
- Subjects
030506 rehabilitation ,Traumatic brain injury ,Decision Making ,Neuroscience (miscellaneous) ,Impulsivity ,03 medical and health sciences ,0302 clinical medicine ,Monoaminergic ,Brain Injuries, Traumatic ,Developmental and Educational Psychology ,medicine ,Animals ,Humans ,Rats, Long-Evans ,Amphetamine ,Subclinical infection ,Heterogeneous sample ,Learning history ,business.industry ,Probabilistic logic ,Uncertainty ,medicine.disease ,Rats ,Gambling ,Neurology (clinical) ,medicine.symptom ,0305 other medical science ,business ,030217 neurology & neurosurgery ,medicine.drug ,Clinical psychology - Abstract
Primary Objective: Traumatic brain injury (TBI) is associated with numerous psychiatric comorbidities, and subclinical psychiatric symptoms. While many symptoms have been replicated in animal models of brain injury, a vast majority of studies utilize naive rats as subjects, which fail to mimic the complex learning history of human patients.Methods and Procedures: In the current study, we evaluated the effects of a brain injury in animals with early exposure to uncertainty on post-injury decision-making in a probabilistic task, the rodent gambling task (RGT).Main Outcomes and Results: Exposure to uncertainty resulted in a heterogeneous sample relative to prior publications, and brain-injured rats showed no deficits in choice behavior compared to shams which contrasts with large, pervasive deficits in previously published work. However, TBI increased impulsivity and caused transient changes in behavioral variables indicative of initial motivational deficits (pellets earned, omitted responses). Notably, effects of amphetamine were similar on this heterogeneous sample of rats relative to a number of other published reports, suggesting consistent effects of gross monoaminergic manipulations on choice behavior, independent of experience.Conclusions: Going forward, translational studies need to consider the heterogeneity that exists at the clinical level and account for these problems when modeling diseases in animals.
- Published
- 2019
7. Reply
- Author
-
Thomas M. O'Hearn, Rahul N. Khurana, Michael Javaheri, and Mark S. Humayun
- Subjects
Ophthalmology ,General Medicine - Published
- 2019
8. Amniotic Membrane Transplantation for Intraoperative Conjunctival Repair During Trabeculectomy With Mitomycin C
- Author
-
Gisele Li, Brian A. Francis, Thomas M. O’Hearn, and Samuel Yiu
- Subjects
medicine.medical_specialty ,Conjunctiva ,genetic structures ,Mitomycin ,medicine.medical_treatment ,Glaucoma ,Trabeculectomy ,Exfoliation Syndrome ,Eye Injuries ,Humans ,Medicine ,Amnion ,Intraoperative Complications ,Aged ,Aged, 80 and over ,business.industry ,Mitomycin C ,medicine.disease ,Combined Modality Therapy ,eye diseases ,Surgery ,Transplantation ,Ophthalmology ,medicine.anatomical_structure ,Incision Site ,Female ,sense organs ,Bleb (medicine) ,business ,Glaucoma, Open-Angle - Abstract
PURPOSE To describe the use of amniotic membrane (AM) transplantation for the repair of conjunctival buttonholes during trabeculectomy with mitomycin C. METHODS Four eyes of 3 patients with thin conjunctiva, precluding watertight conjunctival closure at the incision site with suturing, underwent intraoperative AM grafts over the leaking areas. RESULTS In all eyes, a functional, nonleaking bleb was achieved. At the latest follow-up (8 to 30 mo), all eyes had intraocular pressures of 12 mm Hg or less without medications. CONCLUSIONS AM transplantation was effective in the intraoperative closure of conjunctival buttonholes which developed at the incision line in 4 eyes. This intervention may be a useful addition to the glaucoma surgeon's repertoire of surgical techniques.
- Published
- 2007
9. Electrical Stimulation in Isolated Rabbit Retina
- Author
-
Satoshi Suzuki, Mark S. Humayun, Shih Jen Chen, Mauricio Maia, E. Margalit, Jeng-Shyong Shyu, Thomas M. O’Hearn, and James D. Weiland
- Subjects
Retinal Ganglion Cells ,Materials science ,Biomedical Engineering ,Action Potentials ,Stimulation ,In Vitro Techniques ,Retina ,Optics ,Internal Medicine ,medicine ,Animals ,Pulse (signal processing) ,business.industry ,General Neuroscience ,Rehabilitation ,Pulse duration ,Electric Stimulation ,Ganglion ,Electrophysiology ,medicine.anatomical_structure ,Electrode ,Rabbits ,sense organs ,business ,Photoreceptor Cells, Vertebrate ,Optic disc ,Biomedical engineering - Abstract
Experiments were conducted to assess the effect of stimulating electrode parameters (size, position, and waveform shape) on electrically elicited ganglion cell action potentials from isolated rabbit retina. Thirty-eight isolated rabbit retinas were stimulated with bipolar stimulating electrodes (either 125 or 25 microm in diameter) positioned on either the ganglion or the photoreceptor side. Recording electrodes were placed between the optic disc and the stimulating electrodes. Cathodic-first, biphasic, current waveforms of varying pulse durations (0.1, 0.5, 1 ms) were used. For the four conditions tested (125-electrode and 25-microm electrode, ganglion cell, and photoreceptor positions) threshold currents ranged from 6.7 to 23.6 microA, depending on location and pulse duration. With 1-ms pulse duration, no statistically significant difference was seen between threshold currents when either size electrode was used to stimulate either the ganglion cell side or the photoreceptor side. For all groups, the threshold currents using the 1-ms pulse were lower than those using 0.1 ms, but the 0.1-ms pulses used less charge. These experiments provide a number of valuable insights into the relative effects of several stimulation parameters critical to the development of an implanted electronic retinal prosthesis.
- Published
- 2006
10. Electrical stimulation of isolated retina with microwire glass electrodes
- Author
-
Thomas M. O’Hearn, Perry Skeath, Dean A. Scribner, Mark S. Humayun, F. Keith Perkins, Lee Johnson, Joseph Frieble, Srinivas R. Sadda, and Charles D. Merritt
- Subjects
Time Factors ,Materials science ,In Vitro Techniques ,Retina ,law.invention ,Optics ,law ,medicine ,Animals ,Microelectronics ,Wafer ,Electrodes ,Evoked Potentials ,business.industry ,Pulse (signal processing) ,General Neuroscience ,Charge density ,Pulse duration ,Dose-Response Relationship, Radiation ,Glass electrode ,Electric Stimulation ,medicine.anatomical_structure ,Sensory Thresholds ,Electrode ,Microscopy, Electron, Scanning ,Optoelectronics ,Glass ,Rabbits ,business - Abstract
The development of high-resolution retinal prostheses fabricated from silicon wafers presents an interesting problem: how to electrically bridge the space between the flat silicon wafer and the curved retinal surface. One potential "bridge" is a microwire glass electrode. In this paper we present our results in evaluating microwire glass electrodes. We stimulated isolated rabbit retina (n = 5) with a 0.0256 cm(2) microwire electrode. The current and pulse duration were varied from 498 to 1660 microA and 0.1 to 3 ms, respectively. We found that short pulses produced more spikes per coulomb and longer pulses produced more spikes per milliamp. The optimal pulse duration range of 0.7-1 ms was identified as a compromise between the advantages of short and long pulses. Stimulation of isolated rabbit retina with microwire glass results in consistent neuronal spike formation at safe charge density, 20.7 +/- 4.3 microC/cm(2). We also examined the response of retinas (n = 6) to stimulation with a smaller microwire electrode, 0.0002 cm(2). We found that less current was required (15 microA versus 756 microA) for a 1 ms pulse, but at the expense of greater charge density (75 microC/cm(2) versus 29.5 microC/cm(2)). Nonetheless, a 128-fold reduction in area resulted in only a 2.7-fold increase in charge density required for a 1 ms pulse duration. The results presented here indicate that microwire glass can be used as a neural stimulating electrode to bridge the gap between flat microelectronic stimulator chips and curved neuronal tissue.
- Published
- 2004
11. Dark hypopyon in Streptococcus bovis endogenous endophthalmitis: clinicopathologic correlations
- Author
-
Daniel Vitor Vasconcelos-Santos, Adam Hauch, Narsing A. Rao, Thomas M. O’Hearn, Dean Eliott, and Amani A. Fawzi
- Subjects
Endophthalmitis ,Pathology ,medicine.medical_specialty ,Endocarditis ,biology ,business.industry ,Brief Report ,Endogenous endophthalmitis ,Brown/dark hypopyon ,Hypopyon ,medicine.disease ,Streptococcus bovis ,biology.organism_classification ,Colon cancer ,Ophthalmology ,Infectious Diseases ,Causative organism ,medicine ,sense organs ,business - Abstract
Purpose The aim of this report is to present a previously unreported causative organism associated with brown-pigmented hypopyon in a patient with endophthalmitis. Methods This is a retrospective case report which includes clinicopathologic correlations. Results Vitreous cultures demonstrated Streptococcus bovis infection resulting in a brown-pigmented hypopyon, with uveal pigment found intra- and extracellularly on pathologic examination of the pupillary membrane. Conclusions S. bovis endophthalmitis may be a cause of dark hypopyon, especially in patients with a history of liver disease, and, when identified, warrants colonoscopy and cardiac workup.
- Published
- 2010
12. The effects of enfuvirtide therapy on body composition and metabolic parameters over 48 weeks in the TORO body imaging substudy
- Author
-
D A, Cooper, D V, Cordery, P, Reiss, K, Henry, M, Nelson, M, O'Hearn, J, Reynes, K, Arastéh, J, Chung, L, Rowell, D, Guimaraes, A, Bertasso, and Martin, Wilkinson
- Subjects
Adult ,Aged, 80 and over ,Male ,Adolescent ,Waist-Hip Ratio ,HIV-Associated Lipodystrophy Syndrome ,Body Weight ,HIV Infections ,Enfuvirtide ,Middle Aged ,HIV Envelope Protein gp41 ,Peptide Fragments ,Young Adult ,Absorptiometry, Photon ,HIV Fusion Inhibitors ,Antiretroviral Therapy, Highly Active ,Body Composition ,Humans ,Female ,Waist Circumference ,Tomography, X-Ray Computed ,Aged ,Dyslipidemias - Abstract
The aim of the study was to compare the metabolic and morphological effects of enfuvirtide plus an optimized background (OB) regimen vs. OB alone (control group) in treatment-experienced patients in the T-20 vs. Optimized Regimen Only (TORO) studies.Body composition and metabolic changes were investigated in patients over 48 weeks, based on fasting chemistries, body weight, and other anthropometric measurements. Dual-energy X-ray absorptiometry (DEXA) and computed tomography (CT) scans were performed in a patient subgroup (n=155) at baseline and at weeks 24 and 48.At week 48, mean changes from baseline were similar between treatment groups for glucose, insulin, C-peptide, total cholesterol, low-density lipoprotein (LDL) cholesterol, very low density lipoprotein (VLDL) cholesterol, high-density lipoprotein (HDL) cholesterol and triglyceride levels. The enfuvirtide group experienced a significant increase in body weight [mean change from baseline +0.99 kg; 95% confidence interval (CI) +0.54, +1.44] and, in those who had body scans, there was a significant increase in truncal fat (by DEXA: median change +419.4 g; 95% CI+71.3, +767.5) and total fat [visceral adipose tissue (VAT)+subcutaneous adipose tissue (SAT) by single-slice abdominal CT scan: median change +25.5 cm(2) ; 95% CI+8.9, +42.0] over 48 weeks; significant increases in these parameters were not seen in the control group. There was no significant change in truncal:peripheral fat ratio in either the enfuvirtide or the control group.The addition of enfuvirtide to an OB regimen does not appear to have unfavourable effects on fat distribution or metabolic parameters.
- Published
- 2010
13. Early onset vitreous amyloidosis in familial amyloidotic polyneuropathy with a transthyretin Glu54Gly mutation is associated with elevated vitreous VEGF
- Author
-
Shikun He, Jennifer I. Lim, Amani A. Fawzi, Narsing A. Rao, and Thomas M. O’Hearn
- Subjects
Adult ,Male ,Vascular Endothelial Growth Factor A ,medicine.medical_specialty ,Pathology ,Visual acuity ,Neurology ,genetic structures ,Fundus Oculi ,medicine.medical_treatment ,Scientific Report ,Glycine ,Glutamic Acid ,Vitrectomy ,Cellular and Molecular Neuroscience ,chemistry.chemical_compound ,Asian People ,Internal medicine ,medicine ,Humans ,Prealbumin ,Age of Onset ,Fluorescein Angiography ,Pathological ,Amyloid Neuropathies, Familial ,biology ,business.industry ,Amyloidosis ,Eye Diseases, Hereditary ,medicine.disease ,eye diseases ,Sensory Systems ,Vascular endothelial growth factor ,Vitreous Body ,Ophthalmology ,Transthyretin ,Endocrinology ,chemistry ,Mutation ,biology.protein ,sense organs ,medicine.symptom ,business ,Polyneuropathy - Abstract
Aim: To report the early vitreous involvement in a rare familial amyloidotic polyneuropathy (FAP) mutation and associated vitreous vascular endothelial growth factor (VEGF) levels. Design: Observational case series. Methods: Review of clinical, pathological, photographic, and angiographic records of two FAP siblings with severe vitreous involvement. Laboratory ELISA analysis of vitreous samples for VEGF, and DNA sequence analysis of peripheral blood for transthyretin (TTR) mutational analysis. Results: Two patients underwent 25-gauge vitrectomy in three eyes with marked improvement of visual acuity. Neovascularisation seen intraoperatively responded to endolaser. Analysis of vitrectomy samples for VEGF showed raised levels in all three specimens. Mutational analysis revealed an isolated Glu54Gly mutation in the transthyretin gene. Conclusions: Early involvement of the vitreous occurs in a rare transthyretin mutation of FAP, with increased vitreous levels of VEGF.
- Published
- 2007
14. Linezolid-induced optic neuropathy: a mitochondrial disorder?
- Author
-
Alfredo A. Sadun, T M O'Hearn, M M Lai, Michael Javaheri, and R N Khurana
- Subjects
Male ,medicine.medical_specialty ,Visual acuity ,Mitochondrial Diseases ,genetic structures ,Eye disease ,Vision Disorders ,Visual Acuity ,Temporal optic disc pallor ,Retina ,Optic neuropathy ,Cellular and Molecular Neuroscience ,Nerve Fibers ,Anti-Infective Agents ,Ophthalmology ,Acetamides ,Optic Nerve Diseases ,medicine ,Cranial nerve disease ,Humans ,Mandibular Diseases ,Fluorescein Angiography ,Child ,Oxazolidinones ,medicine.diagnostic_test ,business.industry ,Linezolid ,Osteomyelitis ,medicine.disease ,Fluorescein angiography ,Sensory Systems ,eye diseases ,Surgery ,Perspective ,Optic nerve ,sense organs ,medicine.symptom ,Mitochondrial optic neuropathies ,business - Abstract
We report a case of bilateral mitochondrial optic neuropathies secondary to long-term linezolid treatment, show the nature of recovery, review the findings in the literature and propose a potential mitochondrial mechanism for linezolid-induced mitochondrial optic neuropathy. This is an observational case report and literature review with presentation of the clinical course of linezolid mitochondrial optic neuropathies through clinical and psychophysical documentation. Main outcome measures included: visual acuity, funduscopical examinations and peripapillary retinal nerve fibre layer (PRNFL) optical coherence tomography (OCT). A 6-year-old boy presented with bilateral optic neuropathies secondary to 1 year of linezolid treatment for osteomyelitis of the mandible. On presentation, visual acuities were 20/400 in both eyes, with considerable optic disc oedema, hyperaemia and PRNFL swelling confirmed by OCT. 2 weeks after the discontinuation of linezolid, visual acuities returned to 20/25 in both eyes, with reduction in the optic disc oedema, hyperaemia and PRNFL swelling. 3 months after the discontinuation of linezolid treatment, visual acuities were stable at 20/20 in both eyes, with a marked decrease in PRNFL swelling confirmed by OCT, and the development of mild temporal optic disc pallor in both eyes. Doctors should be aware of impairments of vision among patients on long-term linezolid treatment and promptly discontinue treatment to prevent irreversible vision loss. The development and resolution of bilateral optic neuropathies with considerable PRNFL swelling in this patient provide insight into the more general rubric of mitochondrial optic neuropathies.
- Published
- 2006
15. Retinal prosthesis for the blind
- Author
-
Mark S. Humayun, Eugene de Juan, Gildo Y. Fujii, Mauricio Maia, Dean A. Scribner, Gianluca Lazzi, Duke V. Piyathaisere, Wentai Liu, Gislin Dagnelie, Thomas M. O’Hearn, Gustavo Torres, James D. Weiland, Eyal Margalit, and Robert J. Greenberg
- Subjects
Retinal degeneration ,medicine.medical_specialty ,genetic structures ,Visual system ,Blindness ,Prosthesis Design ,chemistry.chemical_compound ,Implants, Experimental ,Retinal Diseases ,Ophthalmology ,Retinitis pigmentosa ,Optic Nerve Diseases ,Medicine ,Humans ,Retina ,business.industry ,Retinal ,Anatomy ,Macular degeneration ,medicine.disease ,eye diseases ,Electric Stimulation ,medicine.anatomical_structure ,chemistry ,Visual prosthesis ,Optic nerve ,sense organs ,Safety ,business ,Photic Stimulation - Abstract
Most of current concepts for a visual prosthesis are based on neuronal electrical stimulation at different locations along the visual pathways within the central nervous system. The different designs of visual prostheses are named according to their locations (i.e., cortical, optic nerve, subretinal, and epiretinal). Visual loss caused by outer retinal degeneration in diseases such as retinitis pigmentosa or age-related macular degeneration can be reversed by electrical stimulation of the retina or the optic nerve (retinal or optic nerve prostheses, respectively). On the other hand, visual loss caused by inner or whole thickness retinal diseases, eye loss, optic nerve diseases (tumors, ischemia, inflammatory processes etc.), or diseases of the central nervous system (not including diseases of the primary and secondary visual cortices) can be reversed by a cortical visual prosthesis. The intent of this article is to provide an overview of current and future concepts of retinal and optic nerve prostheses. This article will begin with general considerations that are related to all or most of visual prostheses and then concentrate on the retinal and optic nerve designs. The authors believe that the field has grown beyond the scope of a single article so cortical prostheses will be described only because of their direct effect on the concept and technical development of the other prostheses, and this will be done in a more general and historic perspective.
- Published
- 2002
16. What is the essence of physical Therapy? A grand theory is needed for the future
- Author
-
M, O'Hearn
- Subjects
Attitude of Health Personnel ,Humans ,Physical Therapy Modalities - Published
- 2000
17. Pathogenetic Mechanisms of Animal Orbiviruses That Cause Disease at Low Copy Number
- Author
-
Kurt Diem, Patricia M. O’Hearn, Scott J. Brodie, and David Muthui
- Subjects
Orbivirus ,biology ,Capsid ,RNA ,Epizootic hemorrhagic disease ,Orbivirus Infection ,Disease ,biology.organism_classification ,Virology ,Arthropod Vector ,Subclinical infection - Abstract
Orbivirus is a genus in the family Reoviridae and includes epizootic hemorrhagic disease viruses (EHDV), bluetongue viruses (BTV), and African horses sickness viruses. All members of this genus have an arthropod vector, replicate in the cytoplasm of infected cells, and have a double-layered protein capsid consisting of seven polypeptides, each of which is encoded by one of ten double-stranded RNA viral segments [1]. The outcome of orbivirus infection varies, ranging from subclinical or mild disease to acute and fatal disease. Acute disease, as seen in sheep and some wild ruminants, is characterized by inflammation, hemorrhage, and/or necrosis of mucosal surfaces in the oronasal and alimentary systems. Animals that survive infection may develop chronic dermatitis and vesicular and/or erosive lesions at interdigital and mucosal surfaces [2].
- Published
- 2000
18. Simultaneous Presentation of Kimura Disease and Angiolymphoid Hyperplasia With Eosinophilia
- Author
-
Daniel D. Esmaili, Narsing A. Rao, Eli L. Chang, Ronald E. Smith, and Thomas M. O’Hearn
- Subjects
Male ,medicine.medical_specialty ,Antigens, CD34 ,Conjunctival Diseases ,Immunoenzyme Techniques ,medicine ,Conjunctival mass ,Humans ,Head and neck ,Angiolymphoid hyperplasia with eosinophilia ,business.industry ,Ocular adnexa ,Eyelids ,Angiolymphoid Hyperplasia with Eosinophilia ,General Medicine ,Middle Aged ,medicine.disease ,Fibrosis ,Dermatology ,eye diseases ,Ophthalmology ,Eyelid Diseases ,Surgery ,Kimura Disease ,Presentation (obstetrics) ,business ,Conjunctiva ,Right lower eyelid ,Rare disease - Abstract
Kimura disease and angiolymphoid hyperplasia with eosinophilia are rare disease entities that can manifest as subcutaneous nodules, plaques, or papules of the head and neck, and less commonly the orbit and ocular adnexa. The merits of each entity have been debated with regard to whether they are truly individual or are separate points on a single spectrum. Current opinion favors the former. This clinicopathologic report of a patient who presented with a right lower eyelid mass with pathologic features consistent with Kimura disease and a left conjunctival mass with features consistent with angiolymphoid hyperplasia with eosinophilia poses a challenge to the notion that these are distinct conditions.
- Published
- 2008
19. Presumed ocular tuberculosis presenting as a branch retinal vein occlusion in the absence of retinal vasculitis or uveitis
- Author
-
Daniel D. Esmaili, Amani A. Fawzi, Narsing A. Rao, Thomas M. O’Hearn, Jennifer I. Lim, and Michael Javaheri
- Subjects
Visual acuity ,genetic structures ,medicine.diagnostic_test ,Retinal vasculitis ,business.industry ,Anatomy ,Fundus (eye) ,medicine.disease ,eye diseases ,Sensory Systems ,Serous Retinal Detachment ,Ophthalmoscopy ,Cellular and Molecular Neuroscience ,Ophthalmology ,medicine.anatomical_structure ,medicine ,Optic nerve ,Branch retinal vein occlusion ,Letters ,sense organs ,medicine.symptom ,Iris (anatomy) ,business - Abstract
A 38-year-old Hispanic man presented with painless decreased vision in his right eye for 7 days. He had had no light perception with his left eye for 7 years, for which he was unable to provide a history. Visual acuity was 20/70 in the right eye (OD) and no light perception in the left eye (OS), with normal pressures in both eyes (OU). Slit-lamp examination showed an unremarkable OD, but disclosed a glaucoma-implant tube in a formed anterior chamber in the left eye, with posterior synechiae of the iris and a white cataract. Ophthalmoscopy of the right eye showed a superotemporal branch retinal vein occlusion with an associated serous retinal detachment involving the macula, without vitreous cell. The optic nerve and the remaining vessels and periphery were unremarkable. There was no view to the fundus in the left eye. Echography of the right eye did not show choroidal thickening, and in the left eye, …
- Published
- 2007
20. The Effects of Pharmacological and Lentivirus-Induced Immune Suppression on Orbivirus Pathogenesis: Assessment of Virus Burden in Blood Monocytes and Tissues by Reverse Transcription-In Situ PCR
- Author
-
Kurt Diem, Scott J. Brodie, L. D. Pearson, Patricia M. O’Hearn, David Muthui, and William C. Wilson
- Subjects
Serotype ,Immunology ,Viral Pathogenesis and Immunity ,Viremia ,Microbiology ,Bluetongue ,Polymerase Chain Reaction ,Virus ,Monocytes ,Immune system ,Virology ,medicine ,Immune Tolerance ,Animals ,Orbivirus Infection ,Orbivirus ,Sheep ,biology ,Lentivirus ,medicine.disease ,biology.organism_classification ,Reverse transcriptase ,Insect Science ,RNA, Viral ,Female ,Bluetongue virus ,Immunosuppressive Agents - Abstract
We investigated the effects of pharmacological and lentivirus-induced immunosuppression on bluetongue virus (BTV) pathogenesis as a mechanism for virus persistence and induction of clinical disease. Immunologically normal and immunosuppressed sheep were infected subcutaneously with BTV serotype 3 (BTV-3), a foreign isolate with unknown pathogenicity in North American livestock, and with North American serotype 11 (BTV-11). Erythrocyte-associated BTV RNA was detected earlier and at greater concentrations in sheep treated with immunosuppressive drugs. Similarly, viral RNA and infectious virus were detected in blood monocytes earlier and at higher frequency in immunosuppressed animals: as many as 1 in 970 monocytes revealed BTV RNA at peak viremia, compared to 5 monocytes from immunocompetent sheep. Animals infected with BTV-3 had a higher virus burden in monocytes and lesions of greater severity than those infected with BTV-11. BTV RNA was detected by in situ hybridization in vascular endothelial cells and cells of monocyte lineage, but only in tissues from immunocompromised animals, and was most abundant in animals infected with BTV-3. In contrast, reverse transcription-in situ PCR showed BTV RNA from both viral serotypes in high numbers of tissue leukocytes and vascular endothelial cells from both immunosuppressed and, to a lesser extent, immunocompetent animals. Collectively, these findings show that BTV infection is widely distributed during acute infection but replication is highly restricted in animals with normal immunity. These findings also suggest that in addition to virulence factors that define viral serotypes, immunosuppression could play a role in the natural history of orbivirus infection, allowing for higher virus burden, increased virus persistence, and greater potential for acquisition of virus by the arthropod vector.
- Published
- 1998
21. Medicare Coverage for Vision Assistive Equipment
- Author
-
Alan R. Morse, Roy Cole, Robert W. Massof, Yu Pin Hsu, Mary Lou Jackson, Lylas Mogk, Annemarie M. O'Hearn, Stanley F. Wainapel, and Eleanor E. Faye
- Subjects
Gerontology ,Activities of daily living ,genetic structures ,medicine.medical_treatment ,Visual impairment ,Vision, Low ,Health Promotion ,Blindness ,Centers for Medicare and Medicaid Services, U.S ,Insurance Coverage ,Vision Screening ,Quality of life (healthcare) ,Activities of Daily Living ,Health care ,medicine ,Humans ,Vision rehabilitation ,Aged ,Health Services Needs and Demand ,Rehabilitation ,business.industry ,Insurance Benefits ,Health services research ,Middle Aged ,medicine.disease ,United States ,eye diseases ,Ophthalmology ,Sensory Aids ,Health Services Research ,Medical emergency ,medicine.symptom ,business ,Medicaid ,Visually Impaired Persons - Abstract
Vision loss that cannot be corrected medically, surgically, or by refractive means is considered low vision. Low vision often results in impairment of daily activities, loss of independence, increased risk of fractures, excess health care expense, and reduced physical functioning, quality of life, and life expectancy. Vision rehabilitation can enable more independent functioning for individuals with low vision. The Centers for Medicare and Medicaid Services recognizes the importance of rehabilitation for achieving medically necessary goals but has denied Medicare coverage for vision assistive equipment that is necessary to complete these goals, although they provide coverage for assistive equipment to provide compensation for other disabilities. We believe that this is discriminatory and does not comport with congressional intent. The Centers for Medicare and Medicaid Services should provide coverage for vision assistive equipment, allowing beneficiaries with vision loss to benefit fully from Medicare-covered rehabilitation to achieve the cost-effective results of these services.
- Published
- 2010
22. Electrical stimulation in normal and retinal degeneration (rd1) isolated mouse retina
- Author
-
Srinivas R. Sadda, Mauricio Maia, Mark S. Humayun, E. Margalit, Thomas M. O’Hearn, and James D. Weiland
- Subjects
Retinal Ganglion Cells ,Retinal degeneration ,genetic structures ,Mouse ,Giant retinal ganglion cells ,Stimulation ,Mice ,chemistry.chemical_compound ,Reaction Time ,medicine ,Animals ,Electrodes ,Mice, Inbred C3H ,Retina ,business.industry ,Retinal Degeneration ,Intrinsically photosensitive retinal ganglion cells ,Retinal ,medicine.disease ,Electric Stimulation ,Sensory Systems ,eye diseases ,Retinal waves ,Mice, Inbred C57BL ,Electrophysiology ,Ophthalmology ,medicine.anatomical_structure ,chemistry ,Retinal ganglion cell ,rd1 ,Sensory Thresholds ,sense organs ,business ,Neuroscience - Abstract
Stimulus threshold and response latencies were measured for electrically elicited retinal ganglion cell responses in retina isolated from the eyes of normal and retinal degenerate (rd1) mice. Stimulation of the ganglion cell-side in normal retina yielded a significantly lower mean threshold and shorter latency when compared with stimulation of the photoreceptor side in normal retina. The latency of the ganglion cell-side stimulation in normal retina also proved to be significantly shorter than the latency for stimulation of the ganglion cell side in rd1 retina. Thus both the electrode positioning as well as the health of the retinal tissue play a role in the stimulating current required to elicit a retinal response.
- Full Text
- View/download PDF
23. Use of the red fluorescent protein as a marker of Kaposi's sarcoma-associated herpesvirus lytic gene expression
- Author
-
Patricia M. O’Hearn and Jeffrey Vieira
- Subjects
Genes, Viral ,viruses ,Gene Expression ,Biology ,Virus Replication ,Recombinant virus ,medicine.disease_cause ,Virus ,Cell Line ,03 medical and health sciences ,Red fluorescent protein ,Virology ,Chlorocebus aethiops ,medicine ,Animals ,Humans ,Kaposi's sarcoma-associated herpesvirus ,030304 developmental biology ,0303 health sciences ,030306 microbiology ,HEK 293 cells ,Herpesvirus ,Molecular biology ,Recombinant Proteins ,3. Good health ,Luminescent Proteins ,Lytic cycle ,Viral replication ,Cell culture ,Herpesvirus 8, Human ,Vero cell ,Vero cells - Abstract
A hallmark of all herpesvirus is the ability to exist in either a latent, or lytic, state of replication, enabling the lifelong infection of its host. Kaposi's sarcoma (KS)-associated herpesvirus (KSHV) can efficiently establish a latent infection in a variety of cell types in vitro, making it a valuable model for the study of latency and reactivation. To facilitate the identification of KSHV lytic replication, and allow subsequent experiments with live cells, a recombinant virus, rKSHV.219, was constructed using JSC-1 cells that expresses the red fluorescent protein (RFP) from the KSHV lytic PAN promoter, the green fluorescent protein (GFP) from the EF-1alpha promoter, and with the gene for puromycin resistance as a selectable marker. rKSHV.219 from JSC-1 cells was used to infect Vero cells for purification of the recombinant virus. Vero cells were also used for the production of rKSHV.219 at levels of 10(5)-10(6) infectious units (IU) of virus per milliliter using a combination of KSHV/RTA expressed from a baculovirus vector, BacK50, and butyrate. Virus produced from Vero cells was used to infect human fibroblasts (HF), 293, DU145, T24, HaCaT, and HEp-2 cells, and in all cells except 293 cells, only a latent infection was established with GFP expression, but no RFP expression. In 293 cells, 10-15% of cells showed lytic gene expression. Both primary and immortalized microvascular endothelial cells (MVEC) were also infected with rKSHV.219, and reduced spontaneous lytic replication was found in immortalized cells. In all cells used in this study, rKSHV.219 efficiently established latent infections from which the virus could be reactivated to productive lytic replication. This work also demonstrated strong synergy between KSHV/RTA and butyrate for the activation of KSHV lytic replication and the production of infectious virus.
- Full Text
- View/download PDF
24. Gene specific and antigen specific strategies for the induction of suppressor T cells to myelin basic protein
- Author
-
L, Steinman, G, Schwartz, M, Waldor, M, O'Hearn, M, Lim, and S, Sriram
- Subjects
Immunosuppression Therapy ,Epitopes ,Mice ,Encephalomyelitis, Autoimmune, Experimental ,Genes, MHC Class II ,Histocompatibility Antigens Class II ,Animals ,Humans ,Myelin Basic Protein ,T-Lymphocytes, Regulatory ,Spleen ,Autoantibodies - Published
- 1984
25. Food Compass 2.0 is an improved nutrient profiling system to characterize healthfulness of foods and beverages.
- Author
-
Barrett EM, Shi P, Blumberg JB, O'Hearn M, Micha R, and Mozaffarian D
- Abstract
Food Compass is a nutrient profiling system used to assess the healthfulness of diverse foods, beverages and meals. Here we present a revised version of Food Compass (Food Compass 2.0) incorporating new data on specific ingredients and the latest diet-health evidence. Food Compass 2.0 has been validated against health outcomes in a population from the United States and demonstrates enhanced ability to characterize foods and beverages based on their healthfulness., (© 2024. The Author(s).)
- Published
- 2024
- Full Text
- View/download PDF
26. Landscape analysis of environmental, social and governance (ESG) investing metrics for consumer nutrition and health in the food and beverage sector.
- Author
-
O'Hearn M, Reedy J, Robinson E, Economos C, Wong JB, Sacks G, and Mozaffarian D
- Abstract
Introduction: The private sector plays a critical role in influencing food choices and health outcomes of consumers. Among private sector actors, investors are a powerful yet underutilised stakeholder for driving scalable public health impact. There are systems to facilitate investors' involvement, notably environmental, social and governance (ESG) investing, which is well placed to include an assessment of business risks to social well-being. However, nutrition efforts within the ESG agenda (ESG-Nutrition) are nascent. We aimed to critically assess the strength of existing ESG-Nutrition metrics to advance the science of measuring business impacts on consumer nutrition and health., Methods: ESG-Nutrition metrics were extracted from eight ESG frameworks and categorised across four domains: product portfolio healthfulness; product distribution and equity; product marketing and labelling; and nutrition-related governance. The strength of each metric was evaluated and scored 1-3 (best), independently by two researchers, based on six attributes: materiality, objectivity, alignment, activity, resolution and verifiability. The total score (range 6-18) and intercorrelation for each attribute was calculated., Results: Across 529 metrics, most related to product marketing and labelling (n=230, 43.5%), followed by product healthfulness (n=126, 23.8%), nutrition-related governance (n=108, 20.4%) and product distribution and equity (n=65, 12.3%). Across all metrics, average total score was 10.94 (1.58), with average attribute scoring highest for verifiability (mean: 2.36 (SD: 0.57)), objectivity (2.11 (0.61)) and materiality (2.01 (0.68)) and lowest for activity (1.83 (0.74)), alignment (1.37 (0.67)) and resolution (1.26 (0.65)). Most intercorrelations were null, suggesting attributes were measuring distinct characteristics of each metric. Significant heterogeneity across domains and frameworks was also observed., Conclusions: This research identifies a range of nutrition-related metrics used in ESG frameworks with respect to food companies, but with substantial heterogeneity in relevant nutrition domains covered and strength of each metric. Efforts are required to improve the quality of metrics across frameworks, establish standardised reporting and align these with investor priorities., Competing Interests: Competing interests: MO reports research funding from Vail Innovative Global Research, as well as the Gates Foundation and the National Institutes of Health and Vail Innovative Global Research, outside of the submitted work. JR reports research funding from the Gates Foundation, the National Institutes of Health and Nestle, outside of the submitted work. ER is funded by an Australian Government Research Training Program (RTP) scholarship. GS is a recipient of a National Health and Medical Research Council (NHMRC) Emerging Leadership Fellowship (APP2008535) and is supported by a Heart Foundation Future Leader Fellowship (102035) from the National Heart Foundation of Australia. He is also a researcher within NHMRC Centres for Research Excellence entitled Reducing Salt Intake Using Food Policy Interventions (APP1117300), a Centre of Research Excellence in Food Retail Environments for Health (RE-FRESH) (APP1152968) and Healthy Food, Healthy Planet, Healthy People (APP2006620) (Australia). JBW reports research funding from the National Institutes of Health and membership in the US Preventive Services Task Force (unpaid) and National Academies of Sciences, Engineering and Medicine Committee on Evaluating the Process to Develop the Dietary Guidelines for Americans, 2020-2025 (unpaid), outside the submitted work. CE reports research funding from the US Department of Agriculture, National Institutes of Health, JPB Foundation, and Newman’s Own Foundation. She also reports her position as Vice Chair to National Academies of Science Roundtable on Obesity Solutions (unpaid) and her Advisory Board position at Care/of Scientific. None of the above relate to the manuscript. DM reports funding from the National Institutes of Health, the Gates Foundation, the Rockefeller Foundation, Vail Innovative Global Research and the Kaiser Permanente Fund at East Bay Community Foundation; personal fees from Acasti Pharma, Barilla, Danone and Motif Foodworks; scientific advisory board for Beren Therapeutics, Brightseed, Calibrate, Discern Dx, Elysium Health, Filtricine, HumanCo, January, Perfect Day, Tiny Organics and (ended) Day Two and Season Health; stock ownership in Calibrate and HumanCo and chapter royalties from UpToDate., (© Author(s) (or their employer(s)) 2023. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)
- Published
- 2023
- Full Text
- View/download PDF
27. A comparative analysis of nutrition-related assessment criteria and associated nutrition performance scores of food companies across three prominent corporate sustainability assessment tools.
- Author
-
Robinson E, Chan J, O'Hearn M, Mozaffarian D, and Sacks G
- Subjects
- Humans, Nutritional Status, Beverages, Diet, Food Industry, Food
- Abstract
Objective: Corporate sustainability assessment tools are increasingly used to evaluate company performance on environmental, social and governance (ESG) criteria. Given the growing burden of diet-related disease and nutrition-related business risks, it is important to understand the scope of nutrition-related ESG data currently available. This study aimed to compare the nutrition-related assessment criteria and associated food company performance across three prominent assessment tools., Design: Key attributes and assessment criteria of two civil society-led and one commercially available corporate sustainability assessment tools were extracted and compared for the year 2021. Company performance scores for twenty-five major food and beverage manufacturers using these three tools were analysed by nutrition domain: 'Product Portfolio', 'Labelling', 'Marketing', 'Accessibility and Affordability', 'Governance and Reporting', 'Stakeholder Engagement' and 'Employee Health'. To enable comparison between tools, company performance scores were assigned to categories of low (score = 0-25 % score or D), moderately low (25-50 % or C), moderately high (50-75 % or B) and high (75-100 % or A)., Setting: Global., Participants: N/A., Results: The tools covered similar nutrition domains; however, there was heterogeneity in the assessment criteria used to evaluate each domain. When applied to assess the performance of twenty-five major food and beverage manufacturers, a median nutrition-related performance score of moderately low or low was observed across all tools. The highest scoring domain was 'Governance and Reporting', and the lowest scoring domains were 'Product Portfolio' and 'Accessibility and Affordability'., Conclusions: Greater standardisation of the nutrition-related criteria against which food companies are assessed is needed as part of efforts to drive improvements in food company practices.
- Published
- 2023
- Full Text
- View/download PDF
28. An integrative analytical framework to identify healthy, impactful, and equitable foods: a case study on 100% orange juice.
- Author
-
Erndt-Marino J, O'Hearn M, and Menichetti G
- Subjects
- Fruit and Vegetable Juices, Beverages analysis, Fruit, Health Status, Citrus sinensis
- Abstract
To identify healthy, impactful, and equitable foods, we combined health scores from six diverse nutrient profiling systems (NPS) into a meta-framework (meta-NPS) and paired this with dietary guideline adherence assessment via multilevel regression and poststratification. In a case-study format, a commonly debated beverage formulation - 100% orange juice (OJ) - was chosen to showcase the utility and depth of our framework, systematically scoring high across multiple food systems (i.e. a Meta-Score percentile = 93rd and Stability percentile = 75th) and leading to an expected increase of US dietary fruit guideline adherence by ∼10%. Moreover, the increased adherence varies across the 300 sociodemographic strata, with the benefit patterns being sensitive to absolute or relative quantification of the difference of adherence affected by OJ. In sum, the adaptable, integrative framework we established deepens the science of nutrient profiling and dietary guideline adherence assessment while shedding light on the nuances of defining equitable health effects.
- Published
- 2023
- Full Text
- View/download PDF
29. Innovative financing for nutrition.
- Author
-
Shekar M, O'Hearn M, Knudsen E, Shibuya K, Bishop S, van Berchem H, Egerton-Warburton C, Shibata Okamura K, and Mozaffarian D
- Abstract
Given the constraints of both overseas development aid and domestic financing for nutrition, innovative financing is critical-yet nutrition lags behind other sectors in catalysing it. Here, we argue that the framing for nutrition must evolve and critical actions must be taken to generate more money for nutrition and more nutrition for money. Food systems hold some of the most powerful opportunities to improve human and planetary health while increasing productivity-and the private sector has a key role to play in this., (© 2023. Springer Nature Limited.)
- Published
- 2023
- Full Text
- View/download PDF
30. Incident type 2 diabetes attributable to suboptimal diet in 184 countries.
- Author
-
O'Hearn M, Lara-Castor L, Cudhea F, Miller V, Reedy J, Shi P, Zhang J, Wong JB, Economos CD, Micha R, and Mozaffarian D
- Subjects
- Adult, Male, Humans, Female, Diet adverse effects, Risk Assessment, Income, Body Weight, Risk Factors, Global Health, Diabetes Mellitus, Type 2 epidemiology, Diabetes Mellitus, Type 2 etiology
- Abstract
The global burden of diet-attributable type 2 diabetes (T2D) is not well established. This risk assessment model estimated T2D incidence among adults attributable to direct and body weight-mediated effects of 11 dietary factors in 184 countries in 1990 and 2018. In 2018, suboptimal intake of these dietary factors was estimated to be attributable to 14.1 million (95% uncertainty interval (UI), 13.8-14.4 million) incident T2D cases, representing 70.3% (68.8-71.8%) of new cases globally. Largest T2D burdens were attributable to insufficient whole-grain intake (26.1% (25.0-27.1%)), excess refined rice and wheat intake (24.6% (22.3-27.2%)) and excess processed meat intake (20.3% (18.3-23.5%)). Across regions, highest proportional burdens were in central and eastern Europe and central Asia (85.6% (83.4-87.7%)) and Latin America and the Caribbean (81.8% (80.1-83.4%)); and lowest proportional burdens were in South Asia (55.4% (52.1-60.7%)). Proportions of diet-attributable T2D were generally larger in men than in women and were inversely correlated with age. Diet-attributable T2D was generally larger among urban versus rural residents and higher versus lower educated individuals, except in high-income countries, central and eastern Europe and central Asia, where burdens were larger in rural residents and in lower educated individuals. Compared with 1990, global diet-attributable T2D increased by 2.6 absolute percentage points (8.6 million more cases) in 2018, with variation in these trends by world region and dietary factor. These findings inform nutritional priorities and clinical and public health planning to improve dietary quality and reduce T2D globally., (© 2023. The Author(s).)
- Published
- 2023
- Full Text
- View/download PDF
31. Changes in Food Security, Healthfulness, and Access During the Coronavirus Disease 2019 Pandemic: Results From a National United States Survey.
- Author
-
Gerber S, O'Hearn M, Cruz SM, Reedy J, and Mozaffarian D
- Abstract
Background: Coronavirus disease 2019 (COVID-19) disrupted access to food and adequate nutrition and the types of foods consumed. However, little empiric data exists on the changes in American's food and nutrition habits 2 y into the pandemic., Objectives: To assess current and altered food choices ∼2 y into the COVID-19 pandemic in the months after historic public pandemic relief., Methods: A national sample of 1878 United States adults balanced by age, sex, race/ethnicity, and income completed a one-time, online, semi-quantitative, 44-item questionnaire in Fall 2021 asking about the demographics, COVID-19 food choice changes (including free-text), and consumer priorities. This analysis investigates COVID-19 impacts on food security, healthfulness, and access., Results: More than 35% of respondents reported improved food security and >45% reported improved food healthfulness compared with prepandemic status. Improvement was reported in more than 30% of Black/African-American and Hispanic/Latinx adults, adults with lower annual income, and female sex, despite over 75% reporting reduced choice of where to eat or buy food. The pandemic offered occasion for many to improve diet, but a similar number expressed that the pandemic destabilized healthy habits., Conclusions: Our novel findings suggest that by late 2021, most Americans had improved food security and food choice healthfulness, despite reduced access to food service and retail, although with worsening among a meaningful proportion of Americans as well as heterogeneity in these changes. Vigorous federal, state, city, and community responses to the pandemic may have played a role in improving the food security and food choice healthfulness during the COVID-19 pandemic. Health crises differently impact health behaviors, but when accompanied by vigorous civic and community response, food security, and food healthfulness can be fortified., Competing Interests: The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Dariush Mozaffarian reports financial support was provided by Vail Innovative Global Research., (© 2023 The Authors.)
- Published
- 2023
- Full Text
- View/download PDF
32. Validation of Food Compass with a healthy diet, cardiometabolic health, and mortality among U.S. adults, 1999-2018.
- Author
-
O'Hearn M, Erndt-Marino J, Gerber S, Lauren BN, Economos C, Wong JB, Blumberg JB, and Mozaffarian D
- Subjects
- Adult, Humans, Food, Beverages, Nutrients, Diet, Healthy, Cardiovascular Diseases epidemiology
- Abstract
The Food Compass is a nutrient profiling system (NPS) to characterize the healthfulness of diverse foods, beverages and meals. In a nationally representative cohort of 47,999 U.S. adults, we validated a person's individual Food Compass Score (i.FCS), ranging from 1 (least healthful) to 100 (most healthful) based on cumulative scores of items consumed, against: (a) the Healthy Eating Index (HEI) 2015; (b) clinical risk factors and health conditions; and (c) all-cause mortality. Nationally, the mean (SD) of i.FCS was 35.5 (10.9). i.FCS correlated highly with HEI-2015 (R = 0.81). After multivariable-adjustment, each one SD (10.9 point) higher i.FCS associated with more favorable BMI (-0.60 kg/m
2 [-0.70,-0.51]), systolic blood pressure (-0.69 mmHg [-0.91,-0.48]), diastolic blood pressure (-0.49 mmHg [-0.66,-0.32]), LDL-C (-2.01 mg/dl [-2.63,-1.40]), HDL-C (1.65 mg/d [1.44,1.85]), HbA1c (-0.02% [-0.03,-0.01]), and fasting plasma glucose (-0.44 mg/dL [-0.74,-0.15]); lower prevalence of metabolic syndrome (OR = 0.85 [0.82,0.88]), CVD (0.92 [0.88,0.96]), cancer (0.95 [0.91,0.99]), and lung disease (0.92 [0.88,0.96]); and higher prevalence of optimal cardiometabolic health (1.24 [1.16,1.32]). i.FCS also associated with lower all-cause mortality (HR = 0.93 [0.89,0.96]). Findings were similar by age, sex, race/ethnicity, education, income, and BMI. These findings support validity of Food Compass as a tool to guide public health and private sector strategies to identify and encourage healthier eating., (© 2022. The Author(s).)- Published
- 2022
- Full Text
- View/download PDF
33. Economic Evaluation of Nutrition-Sensitive Agricultural Interventions to Increase Maternal and Child Dietary Diversity and Nutritional Status in Rural Odisha, India.
- Author
-
Haghparast-Bidgoli H, Harris-Fry H, Kumar A, Pradhan R, Mishra NK, Padhan S, Ojha AK, Mishra SN, Fivian E, James P, Ferguson S, Krishnan S, O'Hearn M, Palmer T, Koniz-Booher P, Danton H, Minovi S, Mohanty S, Rath S, Rath S, Nair N, Tripathy P, Prost A, Allen E, Skordis J, and Kadiyala S
- Subjects
- Agriculture, Child, Cost-Benefit Analysis, Female, Humans, India, Polyesters, Pregnancy, Diet, Nutritional Status
- Abstract
Background: Economic evaluations of nutrition-sensitive agriculture (NSA) interventions are scarce, limiting assessment of their potential affordability and scalability., Objectives: We conducted cost-consequence analyses of 3 participatory video-based interventions of fortnightly women's group meetings using the following platforms: 1) NSA videos; 2) NSA and nutrition-specific videos; or 3) NSA videos with a nutrition-specific participatory learning and action (PLA) cycle., Methods: Interventions were tested in a 32-mo, 4-arm cluster-randomized controlled trial, Upscaling Participatory Action and Videos for Agriculture and Nutrition (UPAVAN) in the Keonjhar district, Odisha, India. Impacts were evaluated in children aged 0-23 mo and their mothers. We estimated program costs using data collected prospectively from expenditure records of implementing and technical partners and societal costs using expenditure assessment data collected from households with a child aged 0-23 mo and key informant interviews. Costs were adjusted for inflation, discounted, and converted to 2019 US$., Results: Total program costs of each intervention ranged from US$272,121 to US$386,907. Program costs per pregnant woman or mother of a child aged 0-23 mo were US$62 for NSA videos, US$84 for NSA and nutrition-specific videos, and US$78 for NSA videos with PLA (societal costs: US$125, US$143, and US$122, respectively). Substantial shares of total costs were attributable to development and delivery of the videos and PLA (52-69%) and quality assurance (25-41%). Relative to control, minimum dietary diversity was higher in the children who underwent the interventions incorporating nutrition-specific videos and PLA (adjusted RRs: 1.19 and 1.27; 95% CIs: 1.03-1.37 and 1.11, 1.46, respectively). Relative to control, minimum dietary diversity in mothers was higher in those who underwent NSA video (1.21 [1.01, 1.45]) and NSA with PLA (1.30 [1.10, 1.53]) interventions., Conclusion: NSA videos with PLA can increase both maternal and child dietary diversity and have the lowest cost per unit increase in diet diversity. Building on investments made in developing UPAVAN, cost-efficiency at scale could be increased with less intensive monitoring, reduced startup costs, and integration within existing government programs. This trial was registered at clinicaltrials.gov as ISRCTN65922679., (© The Author(s) 2022. Published by Oxford University Press on behalf of the American Society for Nutrition.)
- Published
- 2022
- Full Text
- View/download PDF
34. Author Correction: Food Compass is a nutrient profiling system using expanded characteristics for assessing healthfulness of foods.
- Author
-
Mozaffarian D, El-Abbadi NH, O'Hearn M, Erndt-Marino J, Masters WA, Jacques P, Shi P, Blumberg JB, and Micha R
- Published
- 2022
- Full Text
- View/download PDF
35. The time is ripe for ESG + Nutrition: evidence-based nutrition metrics for Environmental, Social, and Governance (ESG) investing.
- Author
-
O'Hearn M, Gerber S, Cruz SM, and Mozaffarian D
- Subjects
- Humans, Benchmarking, Nutritional Status
- Published
- 2022
- Full Text
- View/download PDF
36. Reply to: Food Compass novelty and NOVA category assignments.
- Author
-
Mozaffarian D, O'Hearn M, El-Abbadi NH, Blumberg JB, and Micha R
- Published
- 2022
- Full Text
- View/download PDF
37. Trends and Disparities in Cardiometabolic Health Among U.S. Adults, 1999-2018.
- Author
-
O'Hearn M, Lauren BN, Wong JB, Kim DD, and Mozaffarian D
- Subjects
- Adult, Blood Pressure, Cross-Sectional Studies, Humans, Mexican Americans, Nutrition Surveys, Obesity, Risk Factors, United States epidemiology, Cardiovascular Diseases
- Abstract
Background: Few studies have assessed U.S. cardiometabolic health trends-optimal levels of multiple risk factors and absence of clinical cardiovascular disease (CVD)-or its impact on health disparities., Objectives: The purpose of this study was to investigate U.S. trends in optimal cardiometabolic health from 1999 to 2018., Methods: We assessed proportions of adults with optimal cardiometabolic health, based on adiposity, blood glucose, blood lipids, blood pressure, and clinical CVD; and optimal, intermediate, and poor levels of each component among 55,081 U.S. adults in the National Health and Nutrition Examination Survey., Results: In 2017-2018, only 6.8% (95% CI: 5.4%-8.1%) of U.S. adults had optimal cardiometabolic health, declining from 1999-2000 (P trend = 0.02). Among components of cardiometabolic health, the largest declines were for adiposity (optimal levels: 33.8%-24.0%; poor levels: 47.7%-61.9%) and glucose (optimal levels: 59.4%-36.9%; poor levels: 8.6%-13.7%) (P trend <0.001 for each). Optimal levels of blood lipids increased from 29.9%-37.0%, whereas poor decreased from 28.3%-14.7% (P trend <0.001). Trends over time for blood pressure and CVD were smaller. Disparities by age, sex, education, and race/ethnicity were evident in all years, and generally worsened over time. By 2017-2018, prevalence of optimal cardiometabolic health was lower among Americans with lower (5.0% [95% CI: 2.8%-7.2%]) vs higher education (10.3% [95% CI: 7.6%-13.0%]); and among Mexican American (3.2% [95% CI: 1.4%-4.9%]) vs non-Hispanic White (8.4% [95% CI: 6.3%-10.4%]) adults., Conclusions: Between 1999 and 2000 and 2017 and 2018, U.S. cardiometabolic health has been poor and worsening, with only 6.8% of adults having optimal cardiometabolic health, and disparities by age, sex, education, and race/ethnicity. These novel findings inform the need for nationwide clinical and public health interventions to improve cardiometabolic health and health equity., Competing Interests: Funding Support and Author Disclosures This research was supported by the National Institutes of Health and the National Heart, Lung, and Blood Institute, Bethesda, Maryland (grant 2R01HL115189-06A1 to Dr Mozaffarian). The funding agency did not contribute to the design or conduct of the study; collection, management, analysis, or interpretation of the data; preparation, review, or approval of the manuscript; or the decision to submit the manuscript for publication. All authors have received research funding from the National Institutes of Health. Dr Mozaffarian has received additional research funding from the Gates Foundation, the Rockefeller Foundation, and Vail Institute for Global Research; is on the scientific advisory board for Beren Therapeutics, Calibrate, DayTwo (ended 6/20), Elysium Health, Filtricine, Foodome, HumanCo, January Inc., Perfect Day, Season, and Tiny Organics; all outside the submitted work. Dr Wong has membership in the U.S. Preventive Services Task Force, outside the submitted work. Ms Lauren has received personal fees from Abt Associates and the Centers for Disease Control and Prevention, both outside the submitted work., (Copyright © 2022 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.)
- Published
- 2022
- Full Text
- View/download PDF
38. Food Compass is a nutrient profiling system using expanded characteristics for assessing healthfulness of foods.
- Author
-
Mozaffarian D, El-Abbadi NH, O'Hearn M, Erndt-Marino J, Masters WA, Jacques P, Shi P, Blumberg JB, and Micha R
- Abstract
Nutrient profiling systems (NPS) aim to discriminate the healthfulness of foods for front-of-package labelling, warning labels, taxation, company ratings and more. Existing NPS often assess relatively few nutrients and ingredients, use inconsistent criteria across food categories and have not incorporated the newest science. Here, we developed and validated an NPS, the Food Compass, to incorporate a broader range of food characteristics, attributes and uniform scoring principles. We scored 54 attributes across 9 health-relevant domains: nutrient ratios, vitamins, minerals, food ingredients, additives, processing, specific lipids, fibre and protein, and phytochemicals. The domain scores were summed into a final Food Compass Score (FCS) ranging from 1 (least healthy) to 100 (most healthy) for all foods and beverages. Content validity was confirmed by assessing nutrients, food ingredients and other characteristics of public health concern; face validity was confirmed by assessing the FCS for 8,032 foods and beverages reported in NHANES/FNDDS 2015-16; and convergent and discriminant validity was confirmed from comparisons with the NOVA food processing classification, the Health Star Rating and the Nutri-Score. The FCS differentiated food categories and food items well, with mean ± s.d. ranging from 17.1 ± 17.2 for savoury snacks and sweet desserts to 81.6 ± 16.0 for legumes, nuts and seeds. In many food categories, the FCS provided important discrimination of specific foods and beverages as compared with NOVA, the Health Star Rating or the Nutri-Score. On the basis of demonstrated content, convergent and discriminant validity, the Food Compass provides an NPS scoring a broader range of attributes and domains than previous systems with uniform and transparent principles. This publicly available tool will help guide consumer choice, research, food policy, industry reformulations and mission-focused investment decisions., (© 2021. The Author(s), under exclusive licence to Springer Nature Limited.)
- Published
- 2021
- Full Text
- View/download PDF
39. Effect of nutrition-sensitive agriculture interventions with participatory videos and women's group meetings on maternal and child nutritional outcomes in rural Odisha, India (UPAVAN trial): a four-arm, observer-blind, cluster-randomised controlled trial.
- Author
-
Kadiyala S, Harris-Fry H, Pradhan R, Mohanty S, Padhan S, Rath S, James P, Fivian E, Koniz-Booher P, Nair N, Haghparast-Bidgoli H, Mishra NK, Rath S, Beaumont E, Danton H, Krishnan S, Parida M, O'Hearn M, Kumar A, Upadhyay A, Tripathy P, Skordis J, Sturgess J, Elbourne D, Prost A, and Allen E
- Subjects
- Agriculture, Child, Cross-Sectional Studies, Female, Group Processes, Humans, India, Women
- Abstract
Background: Almost a quarter of the world's undernourished people live in India. We tested the effects of three nutrition-sensitive agriculture (NSA) interventions on maternal and child nutrition in India., Methods: We did a parallel, four-arm, observer-blind, cluster-randomised trial in Keonjhar district, Odisha, India. A cluster was one or more villages with a combined minimum population of 800 residents. The clusters were allocated 1:1:1:1 to a control group or an intervention group of fortnightly women's groups meetings and household visits over 32 months using: NSA videos (AGRI group); NSA and nutrition-specific videos (AGRI-NUT group); or NSA videos and a nutrition-specific participatory learning and action (PLA) cycle meetings and videos (AGRI-NUT+PLA group). Primary outcomes were the proportion of children aged 6-23 months consuming at least four of seven food groups the previous day and mean maternal body-mass index (BMI). Secondary outcomes were proportion of mothers consuming at least five of ten food groups and child wasting (proportion of children with weight-for-height Z score SD <-2). Outcomes were assessed in children and mothers through cross-sectional surveys at baseline and at endline, 36 months later. Analyses were by intention to treat. Participants and intervention facilitators were not blinded to allocation; the research team were. This trial is registered at ISRCTN, ISRCTN65922679., Findings: 148 of 162 clusters assessed for eligibility were enrolled and randomly allocated to trial groups (37 clusters per group). Baseline surveys took place from Nov 24, 2016, to Jan 24, 2017; clusters were randomised from December, 2016, to January, 2017; and interventions were implemented from March 20, 2017, to Oct 31, 2019, and endline surveys done from Nov 19, 2019, to Jan 12, 2020, in an average of 32 households per cluster. All clusters were included in the analyses. There was an increase in the proportion of children consuming at least four of seven food groups in the AGRI-NUT (adjusted relative risk [RR] 1·19, 95% CI 1·03 to 1·37, p=0·02) and AGRI-NUT+PLA (1·27, 1·11 to 1·46, p=0·001) groups, but not AGRI (1·06, 0·91 to 1·23, p=0·44), compared with the control group. We found no effects on mean maternal BMI (adjusted mean differences vs control, AGRI -0·05, -0·34 to 0·24; AGRI-NUT 0·04, -0·26 to 0·33; AGRI-NUT+PLA -0·03, -0·3 to 0·23). An increase in the proportion of mothers consuming at least five of ten food groups was seen in the AGRI (adjusted RR 1·21, 1·01 to 1·45) and AGRI-NUT+PLA (1·30, 1·10 to 1·53) groups compared with the control group, but not in AGRI-NUT (1·16, 0·98 to 1·38). We found no effects on child wasting (adjusted RR vs control, AGRI 0·95, 0·73 to 1·24; AGRI-NUT 0·96, 0·72 to 1·29; AGRI-NUT+PLA 0·96, 0·73 to 1·26)., Interpretation: Women's groups using combinations of NSA videos, nutrition-specific videos, and PLA cycle meetings improved maternal and child diet quality in rural Odisha, India. These components have been implemented separately in several low-income settings; effects could be increased by scaling up together., Funding: Bill & Melinda Gates Foundation, UK AID from the UK Government, and US Agency for International Development., Competing Interests: Declaration of interests We declare no competing interests., (Copyright © 2021 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY 4.0 license. Published by Elsevier Ltd.. All rights reserved.)
- Published
- 2021
- Full Text
- View/download PDF
40. Coronavirus Disease 2019 Hospitalizations Attributable to Cardiometabolic Conditions in the United States: A Comparative Risk Assessment Analysis.
- Author
-
O'Hearn M, Liu J, Cudhea F, Micha R, and Mozaffarian D
- Subjects
- Adult, Aged, Comorbidity, Female, Humans, Male, Middle Aged, Risk Factors, SARS-CoV-2, United States epidemiology, COVID-19 epidemiology, Hospitalization statistics & numerical data, Metabolic Syndrome epidemiology, Nutrition Surveys methods, Pandemics, Risk Assessment methods
- Abstract
BACKGROUND Risk of coronavirus disease 2019 (COVID-19) hospitalization is robustly linked to cardiometabolic health. We estimated the absolute and proportional COVID-19 hospitalizations in US adults attributable to 4 major US cardiometabolic conditions, separately and jointly, and by race/ethnicity, age, and sex. METHODS AND RESULTS We used the best available estimates of independent associations of cardiometabolic conditions with a risk of COVID-19 hospitalization; nationally representative data on cardiometabolic conditions from the National Health and Nutrition Examination Survey 2015 to 2018; and US COVID-19 hospitalizations stratified by age, sex, and race/ethnicity from the Centers for Disease Control and Prevention's Coronavirus Disease 2019-Associated Hospitalization Surveillance Network database and from the COVID Tracking Project to estimate the numbers and proportions of COVID-19 hospitalizations attributable to diabetes mellitus, obesity, hypertension, and heart failure. Inputs were combined in a comparative risk assessment framework, with probabilistic sensitivity analyses and 1000 Monte Carlo simulations to jointly incorporate stratum-specific uncertainties in data inputs. As of November 18, 2020, an estimated 906 849 COVID-19 hospitalizations occurred in US adults. Of these, an estimated 20.5% (95% uncertainty interval [UIs], 18.9-22.1) of COVID-19 hospitalizations were attributable to diabetes mellitus, 30.2% (UI, 28.2-32.3) to total obesity (body mass index ≥30 kg/m
2 ), 26.2% (UI, 24.3-28.3) to hypertension, and 11.7% (UI, 9.5-14.1) to heart failure. Considered jointly, 63.5% (UI, 61.6-65.4) or 575 419 (UI, 559 072-593 412) of COVID-19 hospitalizations were attributable to these 4 conditions. Large differences were seen in proportions of cardiometabolic risk-attributable COVID-19 hospitalizations by age and race/ethnicity, with smaller differences by sex. CONCLUSIONS A substantial proportion of US COVID-19 hospitalizations appear attributable to major cardiometabolic conditions. These results can help inform public health prevention strategies to reduce COVID-19 healthcare burdens.- Published
- 2021
- Full Text
- View/download PDF
41. How to design a complex behaviour change intervention: experiences from a nutrition-sensitive agriculture trial in rural India.
- Author
-
Harris-Fry H, O'Hearn M, Pradhan R, Krishnan S, Nair N, Rath S, Rath S, Koniz-Booher P, Danton H, Aakesson A, Pradhan S, Mishra NK, Kumar A, Upadhay A, Prost A, and Kadiyala S
- Subjects
- Agriculture, Child, Health Behavior, Humans, India epidemiology, Nutritional Status, Rural Population
- Abstract
Many public health interventions aim to promote healthful behaviours, with varying degrees of success. With a lack of existing empirical evidence on the optimal number or combination of behaviours to promote to achieve a given health outcome, a key challenge in intervention design lies in deciding what behaviours to prioritise, and how best to promote them. We describe how key behaviours were selected and promoted within a multisectoral nutrition-sensitive agriculture intervention that aimed to address maternal and child undernutrition in rural India. First, we formulated a Theory of Change, which outlined our hypothesised impact pathways. To do this, we used the following inputs: existing conceptual frameworks, published empirical evidence, a feasibility study, formative research and the intervention team's local knowledge. Then, we selected specific behaviours to address within each impact pathway, based on our formative research, behaviour change models, local knowledge and community feedback. As the intervention progressed, we mapped each of the behaviours against our impact pathways and the transtheoretical model of behaviour change, to monitor the balance of behaviours across pathways and along stages of behaviour change. By collectively agreeing on definitions of complex concepts and hypothesised impact pathways, implementing partners were able to communicate clearly between each other and with intervention participants. Our intervention was iteratively informed by continuous review, by monitoring implementation against targets and by integrating community feedback. Impact and process evaluations will reveal whether these approaches are effective for improving maternal and child nutrition, and what the effects are on each hypothesised impact pathway., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2020. Re-use permitted under CC BY. Published by BMJ.)
- Published
- 2020
- Full Text
- View/download PDF
42. Passive accessory joint mobilization in the multimodal management of chronic dysesthesia following thalamic stroke.
- Author
-
Griffin K, O'Hearn M, Franck CC, and Courtney CA
- Subjects
- Activities of Daily Living, Aged, Female, Humans, Range of Motion, Articular, Recovery of Function, Stroke Rehabilitation methods, Motion Therapy, Continuous Passive methods, Muscle Weakness etiology, Muscle Weakness rehabilitation, Musculoskeletal Manipulations methods, Paresthesia rehabilitation, Stroke complications, Thalamic Diseases etiology, Thalamic Diseases physiopathology, Thalamic Diseases rehabilitation
- Abstract
Study design: Case Report. Purpose: Stroke is the most common cause of long-term disability. Dysesthesia, an unpleasant sensory disturbance, is common following thalamic stroke and evidence-based interventions for this impairment are limited. The purpose of this case report was to describe a decrease in dysesthesia following manual therapy intervention in a patient with history of right lacunar thalamic stroke. Case description: A 66-year-old female presented with tingling and dysesthesia in left hemisensory distribution including left trunk and upper/lower extremities, limiting function. Decreased left shoulder active range of motion, positive sensory symptoms but no sensory loss in light touch was found. She denied pain and moderate shoulder muscular weakness was demonstrated. Laterality testing revealed right/left limb discrimination deficits and neglect-like symptoms were reported. Passive accessory joint motion assessment of glenohumeral and thoracic spine revealed hypomobility and provoked dysesthesia. Interventions included passive oscillatory joint mobilization of glenohumeral joint, thoracic spine, ribs and shoulder strengthening. Results: After six sessions, shoulder function, active range of motion, strength improved and dysesthesia decreased. Global Rating of Change Scale was +5 and QuickDASH score decreased from 45% to 22% disability. Laterality testing was unchanged. Conclusion: Manual therapy may be a beneficial intervention in management of thalamic stroke-related dysesthesia. Implications for Rehabilitation While pain is common following thalamic stroke, patients may present with chronic paresthesia or dysesthesia, often in a hemisensory distribution. Passive movement may promote inhibition of hyperexcitable cortical pathways, which may diminish aberrant sensations. Passive oscillatory manual therapy may be an effective way to treat sensory disturbances such as paresthesias or dysesthesia.
- Published
- 2019
- Full Text
- View/download PDF
43. Protocol for the cost-consequence and equity impact analyses of a cluster randomised controlled trial comparing three variants of a nutrition-sensitive agricultural extension intervention to improve maternal and child dietary diversity and nutritional status in rural Odisha, India (UPAVAN trial).
- Author
-
Haghparast-Bidgoli H, Skordis J, Harris-Fry H, Krishnan S, O'Hearn M, Kumar A, Pradhan R, Mishra NK, Upadhyay A, Pradhan S, Ojha AK, Cunningham S, Rath S, Palmer T, Koniz-Booher P, and Kadiyala S
- Subjects
- Adolescent, Adult, Cluster Analysis, Cost-Benefit Analysis, Diet, Humans, India, Middle Aged, Outcome Assessment, Health Care, Public Health, Rural Population, Young Adult, Agriculture, Malnutrition prevention & control, Nutritional Status, Randomized Controlled Trials as Topic economics
- Abstract
Background: Undernutrition causes around 3.1 million child deaths annually, around 45% of all child deaths. India has one of the highest proportions of maternal and child undernutrition globally. To accelerate reductions in undernutrition, nutrition-specific interventions need to be coupled with nutrition-sensitive programmes that tackle the underlying causes of undernutrition. This paper describes the planned economic evaluation of the UPAVAN trial, a four-arm, cluster randomised controlled trial that tests the nutritional and agricultural impacts of an innovative agriculture extension platform of women's groups viewing videos on nutrition-sensitive agriculture practices, coupled with a nutrition-specific behaviour-change intervention of videos on nutrition, and a participatory learning and action approach., Methods: The economic evaluation of the UPAVAN interventions will be conducted from a societal perspective, taking into account all costs incurred by the implementing agency (programme costs), community and health care providers, and participants and their households, and all measurable outcomes associated with the interventions. All direct and indirect costs, including time costs and donated goods, will be estimated. The economic evaluation will take the form of a cost-consequence analysis, comparing incremental costs and incremental changes in the outcomes of the interventions, compared with the status quo. Robustness of the results will be assessed through a series of sensitivity analyses. In addition, an analysis of the equity impact of the interventions will be conducted., Discussion: Evidence on the cost and cost-effectiveness of nutrition-sensitive agriculture interventions is scarce. This limits understanding of the costs of rolling out or scaling up programs. The findings of this economic evaluation will provide useful information for different multisectoral stakeholders involved in the planning and implementation of nutrition-sensitive agriculture programmes., Trial Registration: ISRCTN65922679 . Registered on 21 December 2016.
- Published
- 2019
- Full Text
- View/download PDF
44. Upscaling Participatory Action and Videos for Agriculture and Nutrition (UPAVAN) trial comparing three variants of a nutrition-sensitive agricultural extension intervention to improve maternal and child nutritional outcomes in rural Odisha, India: study protocol for a cluster randomised controlled trial.
- Author
-
Kadiyala S, Prost A, Harris-Fry H, O'Hearn M, Pradhan R, Pradhan S, Mishra NK, Rath S, Nair N, Rath S, Tripathy P, Krishnan S, Koniz-Booher P, Danton H, Elbourne D, Sturgess J, Beaumont E, Haghparast-Bidgoli H, Skordis-Worrall J, Mohanty S, Upadhay A, and Allen E
- Subjects
- Adolescent, Adult, Body Mass Index, Crops, Agricultural growth & development, Female, House Calls, Humans, India, Infant, Infant Nutrition Disorders diagnosis, Infant Nutrition Disorders physiopathology, Infant, Newborn, Male, Malnutrition diagnosis, Malnutrition physiopathology, Middle Aged, Multicenter Studies as Topic, Nutritive Value, Peer Group, Portion Size, Pregnancy, Randomized Controlled Trials as Topic, Recommended Dietary Allowances, Rural Health, Young Adult, Agriculture methods, Crops, Agricultural supply & distribution, Diet, Healthy, Food Supply, Infant Nutrition Disorders prevention & control, Infant Nutritional Physiological Phenomena, Malnutrition prevention & control, Maternal Nutritional Physiological Phenomena, Nutritional Status, Rural Health Services, Video Recording
- Abstract
Background: Maternal and child undernutrition have adverse consequences for pregnancy outcomes and child morbidity and mortality, and they are associated with low educational attainment, economic productivity as an adult, and human wellbeing. 'Nutrition-sensitive' agriculture programs could tackle the underlying causes of undernutrition., Methods/design: This study is a four-arm cluster randomised controlled trial in Odisha, India. Interventions are as follows: (1) an agricultural extension platform of women's groups viewing and discussing videos on nutrition-sensitive agriculture (NSA) practices, and follow-up visits to women at home to encourage the adoption of new practices shown in the videos; (2) women's groups viewing and discussing videos on NSA and nutrition-specific practices, with follow-up visits; and (3) women's groups viewing and discussing videos on NSA and nutrition-specific practices combined with a cycle of Participatory Learning and Action meetings, with follow-up visits. All arms, including the control, receive basic nutrition training from government community frontline workers. Primary outcomes, assessed at baseline and 32 months after the start of the interventions, are (1) percentage of children aged 6-23 months consuming ≥ 4 out of 7 food groups per day and (2) mean body mass index (BMI) (kg/m
2 ) of non-pregnant, non-postpartum (gave birth > 42 days ago) mothers or female primary caregivers of children aged 0-23 months. Secondary outcomes are percentage of mothers consuming ≥ 5 out of 10 food groups per day and percentage of children's weight-for-height z-score < -2 standard deviations (SD). The unit of randomisation is a cluster, defined as one or more villages with a combined minimum population of 800 residents. There are 37 clusters per arm, and outcomes will be assessed in an average of 32 eligible households per cluster. For randomisation, clusters are stratified by distance to nearest town (< 10 km or ≥ 10 km), and low (< 30%), medium (30-70%), or high (> 70%) proportion of Scheduled Tribe or Scheduled Caste (disadvantaged) households. A process evaluation will assess the quality of implementation and mechanisms behind the intervention effects. A cost-consequence analysis will compare incremental costs and outcomes of the interventions., Discussion: This trial will contribute evidence on the impacts of NSA extension through participatory, low-cost, video-based approaches on maternal and child nutrition and on whether integration with nutrition-specific goals and enhanced participatory approaches can increase these impacts., Trial Registration: ISRCTN , ISRCTN65922679 . Registered on 21 December 2016.- Published
- 2018
- Full Text
- View/download PDF
45. Chronic ulcerative herpes simplex virus infection of the vulva.
- Author
-
Griffith-Bauer K, O'Hearn M, and Ehst BD
- Abstract
Herpes simplex virus infections in HIV-infected individuals can be clinically unusual and difficult to treat due to underlying problems with cell-mediated immunity and the occurrence of antiviral resistance. Additionally, partial or incomplete restoration of immune function may result in chronic ulcerations that require rotational treatments. In this report, we describe the case of a 38-year-old HIV-positive woman who developed the ulcerative form of chronic herpes simplex infection despite highly active antiretroviral therapy and valacyclovir prophylaxis. Repeated intravenous courses of foscarnet and topical cidofovir finally controlled her erosions as her cell-mediated immunity was slowly restored. This case highlights the challenges that still exist in diagnosing and managing this rare presentation of herpes simplex virus.
- Published
- 2012
- Full Text
- View/download PDF
46. Cervical and thoracic mobilization versus manipulation for mechanical neck pain. Letter.
- Author
-
Showalter C and O'Hearn M
- Subjects
- Female, Humans, Male, Immobilization methods, Manipulation, Orthopedic methods, Neck pathology, Neck Pain rehabilitation, Physical Therapy Modalities
- Published
- 2012
47. The effects of enfuvirtide therapy on body composition and metabolic parameters over 48 weeks in the TORO body imaging substudy.
- Author
-
Cooper DA, Cordery DV, Reiss P, Henry K, Nelson M, O'Hearn M, Reynes J, Arastéh K, Chung J, Rowell L, Guimaraes D, and Bertasso A
- Subjects
- Absorptiometry, Photon, Adolescent, Adult, Aged, Aged, 80 and over, Antiretroviral Therapy, Highly Active adverse effects, Antiretroviral Therapy, Highly Active methods, Body Weight drug effects, Dyslipidemias epidemiology, Enfuvirtide, Female, HIV Envelope Protein gp41 pharmacology, HIV Fusion Inhibitors pharmacology, HIV Infections metabolism, HIV-Associated Lipodystrophy Syndrome chemically induced, Humans, Male, Middle Aged, Peptide Fragments pharmacology, Tomography, X-Ray Computed, Waist Circumference drug effects, Waist-Hip Ratio, Young Adult, Body Composition drug effects, Dyslipidemias chemically induced, HIV Envelope Protein gp41 adverse effects, HIV Fusion Inhibitors adverse effects, HIV Infections drug therapy, Peptide Fragments adverse effects
- Abstract
Objective: The aim of the study was to compare the metabolic and morphological effects of enfuvirtide plus an optimized background (OB) regimen vs. OB alone (control group) in treatment-experienced patients in the T-20 vs. Optimized Regimen Only (TORO) studies., Methods: Body composition and metabolic changes were investigated in patients over 48 weeks, based on fasting chemistries, body weight, and other anthropometric measurements. Dual-energy X-ray absorptiometry (DEXA) and computed tomography (CT) scans were performed in a patient subgroup (n=155) at baseline and at weeks 24 and 48., Results: At week 48, mean changes from baseline were similar between treatment groups for glucose, insulin, C-peptide, total cholesterol, low-density lipoprotein (LDL) cholesterol, very low density lipoprotein (VLDL) cholesterol, high-density lipoprotein (HDL) cholesterol and triglyceride levels. The enfuvirtide group experienced a significant increase in body weight [mean change from baseline +0.99 kg; 95% confidence interval (CI) +0.54, +1.44] and, in those who had body scans, there was a significant increase in truncal fat (by DEXA: median change +419.4 g; 95% CI+71.3, +767.5) and total fat [visceral adipose tissue (VAT)+subcutaneous adipose tissue (SAT) by single-slice abdominal CT scan: median change +25.5 cm(2) ; 95% CI+8.9, +42.0] over 48 weeks; significant increases in these parameters were not seen in the control group. There was no significant change in truncal:peripheral fat ratio in either the enfuvirtide or the control group., Conclusion: The addition of enfuvirtide to an OB regimen does not appear to have unfavourable effects on fat distribution or metabolic parameters., (© 2010 British HIV Association.)
- Published
- 2011
- Full Text
- View/download PDF
48. Re: "Interrater reliability of a new classification scheme for patients with neural low back-related leg pain" Schafer A et al. J Man Manip Ther 2009;17:109-116.
- Author
-
O'Hearn M, Lowry C, Emerson-Kavchak A, and Courtney C
- Published
- 2009
- Full Text
- View/download PDF
49. Safety of enfuvirtide in combination with an optimized background of antiretrovirals in treatment-experienced HIV-1-infected adults over 48 weeks.
- Author
-
Trottier B, Walmsley S, Reynes J, Piliero P, O'Hearn M, Nelson M, Montaner J, Lazzarin A, Lalezari J, Katlama C, Henry K, Cooper D, Clotet B, Arastéh K, Delfraissy JF, Stellbrink HJ, Lange J, Kuritzkes D, Eron JJ Jr, Cohen C, Kinchelow T, Bertasso A, Labriola-Tompkins E, Shikhman A, Atkins B, Bourdeau L, Natale C, Hughes F, Chung J, Guimaraes D, Drobnes C, Bader-Weder S, Demasi R, Smiley L, and Salgo MP
- Subjects
- Adult, Diarrhea, Drug Therapy, Combination, Enfuvirtide, Fatigue, HIV Envelope Protein gp41 administration & dosage, HIV Envelope Protein gp41 therapeutic use, HIV Fusion Inhibitors administration & dosage, HIV Fusion Inhibitors therapeutic use, Humans, Lymphatic Diseases, Nausea, Peptide Fragments administration & dosage, Peptide Fragments therapeutic use, Pneumonia, Anti-HIV Agents therapeutic use, HIV Envelope Protein gp41 adverse effects, HIV Fusion Inhibitors adverse effects, HIV Infections drug therapy, HIV-1, Peptide Fragments adverse effects
- Abstract
Background: Antiretroviral tolerability is a critical factor contributing to treatment outcome. The T-20 Versus Optimized Background Regimen Only (TORO) studies assessed the safety and efficacy of enfuvirtide in treatment-experienced HIV-1-infected patients., Methods: A total of 997 patients were randomized at a 2:1 ratio to an optimized background antiretroviral regimen plus enfuvirtide (n = 663) or an optimized background regimen alone (control group; n = 334). Control patients could switch to enfuvirtide on virologic failure., Results: In total, 26.5% of patients randomized to enfuvirtide and 36.6% to the control group discontinued study treatment before week 48; the percentage of patients withdrawn for safety reasons (including adverse events [AEs], deaths, and laboratory abnormalities) was 14.0% in the enfuvirtide group and 11.6% in the control group. Injection site reactions (ISRs) occurred in 98% of enfuvirtide patients and led to treatment discontinuation in 4.4%. Treatment-related (defined as possibly, probably, or remotely) AE rates per 100 patient-years were lower with enfuvirtide (96.2) than in the control group (149.9); diarrhea, nausea, and fatigue, the most frequently reported AEs, were significantly less frequent with enfuvirtide than in the control group. Pneumonia was significantly more frequent in patients treated with enfuvirtide (6.7 vs. 0.6 events per 100 patient-years), although the incidence was within expected ranges for this population. Lymphadenopathy was also higher in enfuvirtide-treated patients (7.1 vs. 1.2 events per 100 patient-years) for control patients., Conclusion: The addition of enfuvirtide to an optimized background regimen does not exacerbate AEs commonly associated with antiretrovirals. ISRs limited treatment in <5% of patients.
- Published
- 2005
- Full Text
- View/download PDF
50. Durable efficacy of enfuvirtide over 48 weeks in heavily treatment-experienced HIV-1-infected patients in the T-20 versus optimized background regimen only 1 and 2 clinical trials.
- Author
-
Nelson M, Arastéh K, Clotet B, Cooper DA, Henry K, Katlama C, Lalezari JP, Lazzarin A, Montaner JS, O'Hearn M, Piliero PJ, Reynes J, Trottier B, Walmsley SL, Cohen C, Eron JJ Jr, Kuritzkes DR, Lange J, Stellbrink HJ, Delfraissy JF, Buss NE, Donatacci L, Wat C, Smiley L, Wilkinson M, Valentine A, Guimaraes D, Demasi R, Chung J, and Salgo MP
- Subjects
- Adolescent, Adult, Aged, Aged, 80 and over, Anti-HIV Agents administration & dosage, CD4 Lymphocyte Count, Drug Therapy, Combination, Enfuvirtide, Female, HIV Envelope Protein gp41 administration & dosage, HIV Fusion Inhibitors administration & dosage, HIV Infections immunology, HIV Infections physiopathology, HIV Infections virology, Humans, Male, Middle Aged, Peptide Fragments administration & dosage, RNA, Viral blood, Time Factors, Viral Load, Anti-HIV Agents therapeutic use, HIV Envelope Protein gp41 therapeutic use, HIV Fusion Inhibitors therapeutic use, HIV Infections drug therapy, HIV-1 drug effects, Peptide Fragments therapeutic use
- Abstract
Background: The T-20 Versus Optimized Background Regimen Only (TORO) 1 and TORO 2 clinical trials are open-label, controlled, parallel-group, phase 3 studies comparing enfuvirtide plus an optimized background (OB) of antiretrovirals (n = 661) with OB alone (n = 334) in treatment-experienced HIV-1-infected patients., Methods: The primary objective at week 48 was to investigate durability of efficacy, as measured by the percentage of patients maintaining their week 24 response or improving. Efficacy analyses used the intent-to-treat population., Results: A total of 73.7% of patients randomized to the enfuvirtide group remained on treatment through week 48 versus 21.3% originally randomized to the control group. At week 48, a higher proportion of week 24 responders maintained their response or were new responders in the enfuvirtide group than in the control group in each responder category: HIV-1 RNA level > or =1.0 log(10) change from baseline, <400 copies/mL and <50 copies/mL (37.4%, 30.4%, and 18.3% in the enfuvirtide group vs. 17.1%, 12.0%, and 7.8% in the control group, respectively; P < 0.0001 for all comparisons). CD4 cell count increases from baseline were twice as great in the enfuvirtide group as in the control group., Conclusion: These data demonstrate durable efficacy of enfuvirtide plus OB over 48 weeks.
- Published
- 2005
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.