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Background: Interventions involving diet, physical activity, and breathing exercises are shown to be beneficial in managing both fatigue and quality of life (QoL) related to MS; however, the impact of such interventions among people newly diagnosed with clinically isolated syndrome (CIS) or relapsing-remitting multiple sclerosis (RRMS) who decline disease-modifying therapies (DMTs) is unknown. Methods: A 12-month prospective quasi-experimental non-inferiority trial recruited people newly diagnosed with CIS or RRMS who voluntarily declined DMTs (health behavior group; HB, n = 29) or followed standard of care (SOC, n = 15). Participants in the HB group were remotely coached on the study diet, moderate-intensity walking, and breathing exercises. All participants completed questionnaires validated to assess MS symptoms, including perceived mental and physical QoL (MSQOL54); fatigue (Fatigue Severity Scale, FSS; and Modified Fatigue Impact Scale, MFIS); mood (Hospital Anxiety and Depression Scale, HADS); and cognitive function (Perceived Deficits Questionnaire, PDQ). Results: During the 12 months, the HB group experienced improvement in scores for mental QoL (MSQOL54 - Mental, 0.24, 95% CI 0.01, 0.47; p = 0.04), fatigue (Total MFIS, -7.26, 95% CI -13.3,-1.18; p = 0.02), and perceived cognitive function (Total PDQ, PDQ-Attention, PDQ-Promemory, and PDQ-Planning, p ≤ 0.03 for all). A between-group difference was observed only for PDQ-Planning (p = 0.048). Non-inferiority analysis revealed that the 12-month changes in means for the HB group were not worse than those for the SOC group with respect to fatigue (FSS, p = 0.02), mood (HDS-Anxiety, p = 0.02; HADS-Depression, p < 0.0001), physical QoL (MSQOL54 - Physical, p = 0.02), or cognitive dysfunction (Total PDQ, p = 0.01). Conclusion: The multimodal lifestyle intervention for individuals newly diagnosed with CIS or RRMS, who voluntarily decline DMTs, did not yield patient-reported outcomes worse than those observed in the SOC group regarding perceived mental quality of life, mood, fatigue, and cognitive function. Trial Registration: clinicaltrials.gov identifier: NCT04009005.
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Background: People with multiple sclerosis (MS) often report dietary modifications; however, evidence on functional outcomes remains sparse. Objective: Evaluate the impact of the low-saturated fat (Swank) and modified Paleolithic elimination (Wahls) diets on functional disability among people with relapsing-remitting MS. Methods: Baseline-referenced MS functional composite (MSFC) scores were calculated from nine-hole peg-test (NHPT), timed 25-foot walk, and oral symbol digit modalities test (SDMT-O) collected at four study visits: (a) run-in, (b) baseline, (c) 12 weeks, and (d) 24 weeks. Participants were observed at run-in and then randomized at baseline to either the Swank (n = 44) or Wahls (n = 43) diets. Results: Among the Swank group, MSFC scores significantly increased from -0.13 ± 0.14 at baseline to 0.10 ± 0.11 at 12 weeks (p = 0.04) and 0.14 ± 0.11 at 24 weeks (p = 0.02). Among the Wahls group, no change in MSFC scores was observed at 12 weeks from 0.10 ± 0.11 at baseline but increased to 0.28 ± 0.13 at 24 weeks (p = 0.002). In both groups, NHPT and SDMT-O z-scores increased at 24 weeks. Changes in MSFC and NHPT were mediated by fatigue. Discussion: Both diets reduced functional disability as mediated by fatigue. Trial Registration: Clinicaltrials.gov Identifier: NCT02914964.
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BACKGROUND: People with multiple sclerosis (MS) frequently report implementing dietary strategies as part of their personal wellness programs; however, little is known about the perceived themes of healthy behavior change in people with MS. METHODS: Semistructured one-on-one interviews were conducted with 20 women with MS enrolled in 2 different restrictive dietary intervention studies and their 18 self-identified support persons consisting of partners and adult children. Interviews were transcribed, coded, categorized, and then grouped into summative themes. The frequency of issues being mentioned as facilitators of or barriers to diet adherence was evaluated to identify possible differences in perceived experiences between women with MS and their support persons during the studies. RESULTS: Five qualitative themes were identified: (1) personal motivation, (2) diet components, (3) time, (4) support, and (5) resource access. Major facilitators of dietary adherence were positive support from support persons and study staff, access to resources, symptom improvement, and personal motivation. Major barriers included the novelty of the study diet, lack of cooking skills, no change in or worsening of symptoms, lack of diet knowledge, and food preferences and temptations. Symptom severity was more frequently reported as a barrier to study diet adherence among participants with secondary progressive MS. CONCLUSIONS: Methods to enhance personal motivation and ensure positive support from support persons and study staff may improve study diet adherence. Due to the unique challenges faced by people with MS, future studies should tailor interventions to their unique MS cohort to increase diet adherence.
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Direct yellow 27 (DY-27) interaction with bovine serum albumin (BSA) was investigated using multi-spectroscopic techniques to understand the toxicity mechanism. Fluorescence quenching of BSA by DY-27 was observed as a result of the formation of a BSA-DY27 complex with a binding constant of 1.19 × 105M-1and followed a static quenching mechanism with a quenching constant Ksvof 7.25 × 104M-1. The far UV circular dichroism spectra revealed the conformational changes in the secondary structure of BSA in the presence of DY-27. The calculated average lifetime of BSA is 6.04 ns and is nearly constant (5.99 ns) in the presence of dye and supports the proposed quenching mechanism. The change in free energy (ΔG) was calculated to be -28.96 kJ mol-1and confirmed the spontaneity of the binding process. Further, docking studies have been conducted to gain more insights into the interactions between DY-27 and serum albumin.
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Compuestos Azo , Albúmina Sérica Bovina , Simulación del Acoplamiento Molecular , Naftalenos , Albúmina Sérica Bovina/química , Albúmina Sérica Bovina/metabolismo , Espectrometría de FluorescenciaRESUMEN
Peptide drugs bradykinin, a leuprolide analogue, 2(PZ-128), and rapastinel are synthesized in 56-77% yield using heating-assisted liquid-phase peptide synthesis on a soluble polynorbornene support. These drugs of commercial utility and complex structures are obtained in 2-5.5 h with no epimerization and >95% purity using only 1.2 equivalents of amino acids and coupling reagents. The peptide yield and purity are comparable or superior to the reported methods.
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Bradiquinina , Preparaciones Farmacéuticas , Indicadores y Reactivos , Leuprolida , Oligopéptidos , PéptidosRESUMEN
The methyl orange [C14H14N3SO3Na], an azo dye exhibited strong emission and large Stokes shift in various solvents, and the largest shift (Δλ = 125.51nm or Δν = 9297cm-1) was obtained in the water. The UV-visible spectra of the dye showed the absorption in the range (33,333 - 20,000) cm-1. We found that solvent effects on the absorption wavelength are consistent. The bathochromic shift in water and the hypsochromic shift in methanol observed in the absorption (43 nm) as well as in the fluorescence (42 nm) spectra predict the strong solute-solvent interaction. The fluorescence quantum yield (ɸf) was decreased from 24% in DMSO to 5% in water. The fluorescent properties of this dye are strongly solvent dependent, the wavelength of minimum fluorescence emission (λem = 435.51nm) shifts to the red. The maximum and minimum calculated oscillator strength is 32% with (Æmax = 29011 M-1cm-1) and 11% (Æmax = 6682 M-1cm-1) in methanol and DMSO, respectively. Protonated solvents without exception give a shorter lifetime and lower quantum yield. The average excited-state lifetime of the dye was found maximum (τav = 5.36 ns) in DMSO. Also, fluorescence lifetime was combined to deduce the radiative and non-radiative decay rate.
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OBJECTIVE: To compare the effect of the modified Paleolithic elimination (Wahls) and low-saturated fat (Swank) diets in relapsing-remitting MS (RRMS). METHODS: Individuals (n = 87) with RRMS were randomized to the Swank or Wahls diets in a parallel group clinical trial consisting of four timepoints: 1) run-in, 2) baseline, 3) 12-weeks, and 4) 24-weeks. RESULTS: 77 participants completed 12 weeks and 72 completed 24 weeks. The 12-week change from baseline in fatigue was -0.94 ± 0.18 (FSS) and -9.87 ± 1.93 (MFIS; both p < 0.0001) for Swank, and -0.71 ± 0.24 (FSS; p = 0.004) and -14.41 ± 2.22 (MFIS; p ≤ 0.0001) for Wahls. Physical MSQoL scores improved by 6.04 ± 2.18 (p = 0.006) for Swank and by 14.5 ± 2.63 (p < 0.0001) for Wahls. Mental MSQoL scores improved by 11.3 ± at 2.79 (p < 0.0001) for Wahls while the Swank did not change (3.85 ± 2.63; p = 0.14). Neither group showed significant changes in 6-minute walking distance at 12 weeks. All outcomes were maintained or further improved at 24 weeks. CONCLUSIONS: Both diets were associated with clinically meaningful within-group reductions in fatigue and improvements in QoL.Trial Registration: Clinicaltrials.gov Identifier: NCT02914964.
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OBJECTIVE: To investigate the feasibility of a modified MCT-based ketogenic diet and its impact on plasma ß-hydroxybutyrate and MS outcomes compared to a modified Paleolithic diet and usual diet in people with Multiple Sclerosis (MS). METHODS: Fifteen individuals with MS were randomized to 3 groups: 1) modified Paleolithic diet (Paleo; n = 6); 2) medium-chain triglyceride (MCT)-based ketogenic diet that included coconut as a fat source (Keto; n = 5); or 3) usual diet (Control; n = 4). Participants had blood drawn every 4 weeks to monitor nutritional ketosis. Participants completed 4-day weighed food records, measures of disability, fatigue, quality of life (QoL), cognitive function, and physical function at baseline and 12-weeks. RESULTS: Macronutrient intake significantly shifted toward a ratio indicative of a ketogenic diet in the Keto group at 12 weeks. Similarly, plasma ß-hydroxybutyrate indicated nutritional ketosis in the Keto group, whereas neither macronutrient intake nor plasma ß-hydroxybutyrate indicated nutritional ketosis in the Paleo and Control groups. The Paleo group had significant within group reductions in fatigue scores and maintained cognitive function scores compared to the Control group. The Keto group had significant reductions in fasting glucose and insulin compared to baseline values; however, no clinical outcomes significantly changed. CONCLUSIONS: Participants consuming the MCT-based ketogenic diet achieved nutritional ketosis; however, it was not associated with significant clinical improvement in this study whereas the modified Paleolithic diet was associated with significant clinical improvements. Larger randomized controlled trials are needed to determine the safety and efficacy of the modified Paleolithic and MCT-based ketogenic diets on MS.
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Dieta Cetogénica , Fatiga , Esclerosis Múltiple , Calidad de Vida , Ácido 3-Hidroxibutírico/sangre , Dieta Paleolítica , Humanos , Esclerosis Múltiple/terapia , Proyectos Piloto , TriglicéridosRESUMEN
Preliminary studies suggest that a modified Paleolithic diet may benefit symptoms of fatigue in progressive multiple sclerosis (MS). However, this diet restricts the consumption of eggs, dairy, and gluten-containing grains, which may increase the risk of micronutrient deficiencies. Therefore, we evaluated the nutritional safety of this diet among people with progressive MS. Three nonconsecutive 24-h dietary recalls were collected from (n = 19) progressive MS participants in the final months of a diet intervention study and analyzed using Nutrition Data System for Research (NDSR) software. Food group intake was calculated, and intake of micronutrients was evaluated and compared to individual recommendations using Nutrient Adequacy Ratios (NARs). Blood was drawn at baseline and the end of the study to evaluate biomarker changes. Mean intake of fruits and vegetables exceeded nine servings/day and most participants excluded food groups. The intake of all micronutrients from food were above 100% NAR except for vitamin D (29.6 ± 34.6%), choline (73.2 ± 27.2%), and calcium (60.3 ± 22.8%), and one participant (1/19) exceeded the Tolerable Upper Limit (UL) for zinc, one (1/19) for vitamin A, and 37% (7/19) exceeded the chronic disease risk reduction (CDRR) for sodium. When intake from supplements was included in the analysis, several individuals exceeded ULs for magnesium (5/19), zinc (2/19), sodium (7/19), and vitamins A (2/19), D (9/19), C (1/19), B6 (3/19), and niacin (10/19). Serum values of vitamins D, B12, K1, K2, and folate significantly increased compared to respective baseline values, while homocysteine and magnesium values were significantly lower at 12 months. Calcium and vitamin A serum levels did not change. This modified Paleolithic diet is associated with minimal nutritional risks. However, excessive intake from supplements may be of concern.
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Dieta Paleolítica , Dieta , Conducta Alimentaria , Micronutrientes/administración & dosificación , Esclerosis Múltiple , Estado Nutricional , Valor Nutritivo , Colina/administración & dosificación , Enfermedades Carenciales/etiología , Encuestas sobre Dietas , Dieta Paleolítica/efectos adversos , Suplementos Dietéticos , Ingestión de Energía , Femenino , Homocisteína/sangre , Humanos , Masculino , Recuerdo Mental , Micronutrientes/sangre , Persona de Mediana Edad , Minerales/administración & dosificación , Minerales/sangre , Ingesta Diaria Recomendada , Vitaminas/administración & dosificación , Vitaminas/sangreRESUMEN
The use of peptides as therapeutics has been growing due to their biocompatibility. Solid phase peptide synthesis typically used to access these peptides requires excess reagents and/or microwave irradiation to drive reactions to completion because the reaction medium is heterogeneous. Reported herein is a soluble polynorbornene support containing rink amide attached sites for synthesizing oligopeptides and conotoxins in high purity using only 1.2 to 2 equivalents of coupling reagents. The support can be isolated as a precipitate from the reaction medium by adding ether. The loading capacity of the support can be easily determined by spectroscopy and can also be tuned by varying the monomer ratio. This support is promising for accessing peptides as the methodology uses minimal reagents and by-products can be easily separated.
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Amidas/química , Conotoxinas/aislamiento & purificación , Oligopéptidos/aislamiento & purificación , Conotoxinas/síntesis química , Conotoxinas/química , Estructura Molecular , Oligopéptidos/síntesis química , Oligopéptidos/química , Técnicas de Síntesis en Fase Sólida , SolubilidadRESUMEN
PURPOSE: To investigate associations between lipid profiles and fatigue in a cohort of progressive multiple sclerosis (MS) patients on a diet-based multimodal intervention. METHODS: This pilot study included 18 progressive MS patients who participated in a prospective longitudinal study of fatigue following a diet-based multimodal intervention that included exercise, neuromuscular electrical stimulation and stress reduction. The diet recommended high intake of vegetables and fruits, encouraged consumption of animal and plant protein and excluded foods with gluten-containing grains, dairy and eggs. Fatigue was measured on the Fatigue Severity Scale (FSS) at baseline and every 3 months for 12 months. A lipid profile consisting of high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), total cholesterol (TC) and triglycerides (TG) was obtained on fasting blood samples at baseline and 12 months. RESULTS: FSS scores decreased from a baseline of 5.51 (95% CI: 4.86, 6.16) to a mean of 3.03 (95% CI: 2.23, 3.82) at 12 months (p < 0.001). At 12 months, increases in HDL-C (mean change: +6.0 mg/dl; 95% CI: 0.3, 12.0; p = 0.049) and decreases in BMI (mean change: -2.6 kg/m2; 95% CI: -3.6, -2.5; p < 0.001), LDL-C (mean change: -10.4 mg/dl; 95% CI:-19.7, -1.2; p = 0.029), TG (mean change: -29.2 mg/dl; 95% CI: -44.3, -14.2; p = 0.001), TG to HDL-C ratio (mean change: -0.6; 95% CI: -1.0, -0.3; p = 0.002) and TC to HDL-C ratio (mean change:-0.6; 95% CI: -1.0, -0.3; p = 0.003) were observed compared to baseline. Improvements in FSS were associated with increases in HDL-C (ß = -0.05; 95% CI: -0.1, -0.0004; p = 0.048) and changes in TC (p = 0.005) from baseline to 12 months. CONCLUSIONS: Lipid profile variables are associated with improvements in fatigue in progressive MS patients on a diet-based multimodal intervention.
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Dieta , Fatiga/sangre , Lípidos/sangre , Esclerosis Múltiple/sangre , Adulto , Animales , Carbohidratos/sangre , Colesterol/sangre , HDL-Colesterol/sangre , LDL-Colesterol/sangre , Estimulación Eléctrica , Ejercicio Físico , Fatiga/complicaciones , Fatiga/dietoterapia , Fatiga/fisiopatología , Grasas/metabolismo , Ácidos Grasos/sangre , Femenino , Humanos , Masculino , Persona de Mediana Edad , Esclerosis Múltiple/complicaciones , Esclerosis Múltiple/dietoterapia , Esclerosis Múltiple/fisiopatología , Proyectos Piloto , Índice de Severidad de la Enfermedad , Triglicéridos/sangreRESUMEN
OBJECTIVE: The objective of this study was to examine whether participation in a 12-month multimodal intervention would improve mood and cognitive function in adults with progressive multiple sclerosis (MS). METHODS: In this one-arm, open-label feasibility trial, participants were prescribed a home-based multimodal intervention, including (1) a modified Paleolithic diet; (2) an exercise program (stretching and strengthening of the trunk and lower limb muscles); (3) neuromuscular electrical stimulation (EStim) of trunk and lower limb muscles; and (4) stress management (meditation and self-massage). Individuals completed measures of mood (Beck Anxiety and Depression Inventories) and cognitive (Cognitive Stability Index, Cognitive Screening Test, Delis-Kaplan Executive Function System) and executive function (Wechsler Adult Intelligence Scale) at baseline and 3, 6, 9, and 12 months after the start of the intervention. Dosage of the multimodal intervention was assessed at 3, 6, 9, and 12 months. RESULTS: The more individuals participated in the intervention activities, the greater improvements they had from baseline to 12 months on self-report measures of anxiety (Beck Anxiety Inventory [BAI]; ps = 0.001 to 0.02), depression (Beck Depression Inventory [BDI]; ps = <0.0001 to 0.09), cognitive function (Cognitive Stability Index [CSI/T], Delis-Kaplan Executive Function System [DKEFS]; ps = 0.001 to 0.06), and executive function (Wechsler Adult Intelligence Scale [WAIS]; ps = <0.0001 to 0.09). Mood and cognitive improvements were more closely related to a higher intake of the modified Paleolithic diet than to exercise and stress management dosage. Anxiety and depression changes were evident after just a few months, whereas changes in cognitive function were generally not observed until later in the intervention period. Mood and cognitive function changes from baseline to 12 months were significantly associated with fatigue improvements (ps = <0.0001 to 0.03). CONCLUSIONS: A modified Paleolithic diet, exercise, EStim, and stress management intervention like this one has the potential to improve the mood and cognitive symptoms that can lead to considerable suffering in people with MS, potentially improving quality of life and function for people with progressive MS.
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Afecto , Cognición , Dieta , Ejercicio Físico , Esclerosis Múltiple/terapia , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Proyectos PilotoRESUMEN
PURPOSE: To investigate the effects of a multimodal intervention including a modified Paleolithic diet, nutritional supplements, stretching, strengthening exercises with electrical stimulation of trunk and lower limb muscles, meditation and massage on walking performance and balance of subjects with progressive multiple sclerosis (MS). MATERIALS AND METHODS: Twenty subjects with mean (standard deviation) age of 51.7 (6.4) years and Expanded Disability Status Scale score of 6.2 (1) participated in a 12-month study. Assessments were completed at baseline, 3, 6, 9, and 12 months. RESULTS: The entire cohort did not show significant changes in any of the assessments over 12 months except higher speed of walking toward the 10 feet mark during timed up and go (TUG) test at 6 months compared with baseline (mean change 7.9 cm/s [95% confidence interval {CI}]: 0.3, 15.2; p=0.041). Sub-group analysis revealed that 50% subjects (n=10) showed decrease in TUG time from baseline to at least 3 of 4 time-points post-intervention and were considered as responders (TUG-Res), the remaining 10 subjects were considered as nonresponders (TUG-NRes). Over 12 months, TUG-Res showed decreased mean TUG time by 31% (95% CI: -52%, -2%), increased median Berg Balance Scale scores (42 to 47), 30% increase in mean timed 25-foot walk speed (>20% considered clinically significant) and increased speed of walk toward 10 feet mark during TUG by 11.6 cm/s (95% CI: -3.0, 25.9) associated with increases in step lengths and decrease in step duration. TUG-NRes showed deterioration in walking ability over 12 months. Comparison of TUG-Res and TUG-NRes showed no significant differences in adherence to intervention but better stride duration and longer step length at baseline for TUG-Res than for TUG-NRes (p<0.05). CONCLUSION: A multimodal lifestyle intervention may improve walking performance and balance in subjects with progressive MS who have mild-to-moderate gait impairment, whereas subjects with severe gait impairments may not respond to this intervention. Future trials should assess effects of this intervention in subjects with MS during early stages of the disease.
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BACKGROUND: Fatigue is a disabling symptom of multiple sclerosis (MS) and reduces quality of life. The aim of this study was to investigate the effects of a multimodal intervention, including a modified Paleolithic diet, nutritional supplements, stretching, strengthening exercises with electrical stimulation of trunk and lower limb muscles, and stress management on perceived fatigue and quality of life of persons with progressive MS. METHODS: Twenty subjects with progressive MS and average Expanded Disability Status Scale (EDSS) score of 6.2 (range: 3.5-8.0) participated in the 12-month phase of the study. Assessments were completed at baseline and at 3 months, 6 months, 9 months, and 12 months. Safety analyses were based on monthly side effects questionnaires and blood analyses at 1 month, 3 months, 6 months, 9 months, and 12 months. RESULTS: Subjects showed good adherence (assessed from subjects' daily logs) with this intervention and did not report any serious side effects. Fatigue Severity Scale (FSS) and Performance Scales-fatigue subscale scores decreased in 12 months (P<0.0005). Average FSS scores of eleven subjects showed clinically significant reduction (more than two points, high response) at 3 months, and this improvement was sustained until 12 months. Remaining subjects (n=9, low responders) either showed inconsistent or less than one point decrease in average FSS scores in the 12 months. Energy and general health scores of RAND 36-item Health Survey (Short Form-36) increased during the study (P<0.05). Decrease in FSS scores during the 12 months was associated with shorter disease duration (r=0.511, P=0.011), and lower baseline Patient Determined Disease Steps score (r s=0.563, P=0.005) and EDSS scores (r s=0.501, P=0.012). Compared to low responders, high responders had lower level of physical disability (P< 0.05) and lower intake of gluten, dairy products, and eggs (P=0.036) at baseline. High responders undertook longer duration of massage and stretches per muscle (P<0.05) in 12 months. CONCLUSION: A multimodal intervention may reduce fatigue and improve quality of life of subjects with progressive MS. Larger randomized controlled trials with blinded raters are needed to prove efficacy of this intervention on MS-related fatigue.
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BACKGROUND: Multiple sclerosis is an autoimmune disease influenced by environmental factors. OBJECTIVES: The feasibility of a multimodal intervention and its effect on perceived fatigue in patients with secondary progressive multiple sclerosis were assessed. DESIGN/SETTING: This was a single-arm, open-label intervention study in an outpatient setting. INTERVENTIONS: A multimodal intervention including a modified paleolithic diet with supplements, stretching, strengthening exercises with electrical stimulation of trunk and lower limb muscles, meditation, and massage was used. OUTCOME MEASURES: Adherence to each component of the intervention was calculated using daily logs. Side-effects were assessed from a monthly questionnaire and blood analyses. Fatigue was assessed using the Fatigue Severity Scale (FSS). Data were collected at baseline and months 1, 2, 3, 6, 9, and 12. RESULTS: Ten (10) of 13 subjects who were enrolled in a 2-week run-in phase were eligible to continue in the 12-month main study. Of those 10 subjects, 8 completed the study and 6 subjects fully adhered to the study intervention for 12 months. Over a 12-month period, average adherence to diet exceeded 90% of days, and to exercise/muscle stimulation exceeded 75% of days. Nutritional supplements intake varied among and within subjects. Group daily average duration of meditation was 13.3 minutes and of massage was 7.2 minutes. No adverse side-effects were reported. Group average FSS scores decreased from 5.7 at baseline to 3.32 (p=0.0008) at 12 months. CONCLUSIONS: In this small, uncontrolled pilot study, there was a significant improvement in fatigue in those who completed the study. Given the small sample size and completer rate, further evaluation of this multimodal therapy is warranted.