scholarly journals Differential Effects of DHA- and EPA-Rich Oils on Sleep in Healthy Young Adults: A Randomized Controlled Trial

Nutrients ◽  
2021 ◽  
Vol 13 (1) ◽  
pp. 248
Author(s):  
Michael J. Patan ◽  
David O. Kennedy ◽  
Cathrine Husberg ◽  
Svein Olaf Hustvedt ◽  
Philip C. Calder ◽  
...  
Keyword(s):  
Sleep Quality ◽  
Controlled Trial ◽  
Sleep Time ◽  
Sleep Efficiency ◽  
Omega 3 ◽  
Double Blind ◽  
Differential Effects ◽  
Positive Effects ◽  
Time In Bed ◽  
Oily Fish

Emerging evidence suggests that adequate intake of omega-3 polyunsaturated fatty acids (n-3 PUFAs), which include docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA), might be associated with better sleep quality. N-3 PUFAs, which must be acquired from dietary sources, are typically consumed at suboptimal levels in Western diets. Therefore, the current placebo-controlled, double-blind, randomized trial, investigated the effects of an oil rich in either DHA or EPA on sleep quality in healthy adults who habitually consumed low amounts of oily fish. Eighty-four participants aged 25–49 years completed the 26-week intervention trial. Compared to placebo, improvements in actigraphy sleep efficiency (p = 0.030) and latency (p = 0.026) were observed following the DHA-rich oil. However, these participants also reported feeling less energetic compared to the placebo (p = 0.041), and less rested (p = 0.017), and there was a trend towards feeling less ready to perform (p = 0.075) than those given EPA-rich oil. A trend towards improved sleep efficiency was identified in the EPA-rich group compared to placebo (p = 0.087), along with a significant decrease in both total time in bed (p = 0.032) and total sleep time (p = 0.019) compared to the DHA-rich oil. No significant effects of either treatment were identified for urinary excretion of the major melatonin metabolite 6-sulfatoxymelatonin. This study was the first to demonstrate some positive effects of dietary supplementation with n-3 PUFAs in healthy adult normal sleepers, and provides novel evidence showing the differential effects of n-3 PUFA supplements rich in either DHA or EPA. Further investigation into the mechanisms underpinning these observations including the effects of n-3 PUFAs on sleep architecture are required.

Sleep as a predictor of tDCS and language therapy outcomes

SLEEP ◽  
2021 ◽  
Author(s):  
Olivia Herrmann ◽  
Bronte Ficek ◽  
Kimberly T Webster ◽  
Constantine Frangakis ◽  
Adam P Spira ◽  
...  
Keyword(s):  
Inferior Frontal Gyrus ◽  
Primary Progressive Aphasia ◽  
Sleep Time ◽  
Sleep Efficiency ◽  
Language Therapy ◽  
Double Blind ◽  
Progressive Aphasia ◽  
Primary Progressive ◽  
Time In Bed ◽  
Sham Condition

Abstract Study Objectives To determine whether sleep at baseline (before therapy) predicted improvements in language following either language therapy alone or coupled with transcranial direct current stimulation (tDCS) in individuals with primary progressive aphasia (PPA). Methods Twenty-three participants with PPA (mean age 68.13 ± 6.21) received written naming/spelling therapy coupled with either anodal tDCS over the left inferior frontal gyrus (IFG) or sham condition in a crossover, sham-controlled, double-blind design (ClinicalTrials.gov identifier: NCT02606422). The outcome measure was percent of letters spelled correctly for trained and untrained words retrieved in a naming/spelling task. Given its particular importance as a sleep parameter in older adults, we calculated sleep efficiency (total sleep time/time in bed x100) based on subjective responses on the Pittsburgh Sleep Quality Index (PSQI). We grouped individuals based on a median split: high versus low sleep efficiency. Results Participants with high sleep efficiency benefited more from written naming/spelling therapy than participants with low sleep efficiency in learning therapy materials (trained words). There was no effect of sleep efficiency in generalization of therapy materials to untrained words. Among participants with high sleep efficiency, those who received tDCS benefitted more from therapy than those who received sham condition. There was no additional benefit from tDCS in participants with low sleep efficiency. Conclusion Sleep efficiency modified the effects of language therapy and tDCS on language in participants with PPA. These results suggest sleep is a determinant of neuromodulation effects. Clinical Trial: tDCS Intervention in Primary Progressive Aphasia https://clinicaltrials.gov/ct2/show/NCT02606422

scholarly journals Randomized Double-Blind Controlled Trial on the Effect of Proteins with Different Tryptophan/Large Neutral Amino Acid Ratios on Sleep in Adolescents: The PROTMORPHEUS Study

Nutrients ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 1885 ◽  
Author(s):  
Oussama Saidi ◽  
Emmanuelle Rochette ◽  
Éric Doré ◽  
Freddy Maso ◽  
Julien Raoux ◽  
...  
Keyword(s):  
Sleep Quality ◽  
Dietary Intake ◽  
Sleep Disturbances ◽  
Controlled Trial ◽  
Internal Clock ◽  
Sleep Efficiency ◽  
Large Neutral Amino Acid ◽  
Double Blind ◽  
Circadian Phase ◽  
Two Samples

Disturbed sleep is common in adolescents. Ingested nutrients help regulate the internal clock and influence sleep quality. The purpose of this clinical trial is to assess the effect of protein tryptophan (Trp)/large neutral amino acids (LNAAs) ratio on sleep and circadian rhythm. Ingested Trp is involved in the regulation of the sleep/wake cycle and improvement of sleep quality. Since Trp transport through the blood–brain barrier is competing with LNAAs, protein with higher Trp/LNAAs were expected to increase sleep efficiency. This randomized double-blind controlled trial will enroll two samples of male adolescents predisposed to sleep disturbances: elite rugby players (n = 24) and youths with obesity (n = 24). They will take part randomly in three sessions each held over a week. They will undergo a washout period, when dietary intake will be calibrated (three days), followed by an intervention period (three days), when their diet will be supplemented with three proteins with different Trp/LNAAs ratios. Physical, cognitive, dietary intake, appetite, and sleepiness evaluations will be made on the last day of each session. The primary outcome is sleep efficiency measured through in-home electroencephalogram recordings. Secondary outcomes include sleep staging, circadian phase, and sleep-, food intake-, metabolism-, and inflammation-related biochemical markers. A fuller understanding of the effect of protein Trp/LNAAs ratio on sleep could help in developing nutritional strategies addressing sleep disturbances.

Presleep α-Lactalbumin Consumption Does Not Improve Sleep Quality or Time-Trial Performance in Cyclists

2020 ◽  
Vol 30 (3) ◽  
pp. 197-202
Author(s):  
Martin J. MacInnis ◽  
Christine E. Dziedzic ◽  
Emily Wood ◽  
Sara Y. Oikawa ◽  
Stuart M. Phillips
Keyword(s):  
Sleep Quality ◽  
Time Trial ◽  
Sleep Time ◽  
Cycle Ergometer ◽  
Crossover Designs ◽  
Double Blind ◽  
Female Age ◽  
Collagen Peptide ◽  
Time In Bed ◽  
Improve Sleep Quality

We tested the hypothesis that presleep consumption of α-lactalbumin (LA), a fraction of whey with a high abundance of tryptophan, would improve indices of sleep quality and time-trial (TT) performance in cyclists relative to an isonitrogenous collagen peptide (CP) supplement lacking tryptophan. Using randomized, double-blind, crossover designs, cyclists consumed either 40 g of LA or CP 2 hr prior to sleep. In Study 1, six elite male endurance track cyclists (age 23 ± 6 years, 70.2 ± 4.4 ml·kg−1·min−1) consumed a supplement for three consecutive evenings before each 4-km TT on a velodrome track, whereas in Study 2, six well-trained cyclists (one female; age 24 ± 5 years, 66.9 ± 8.3 ml·kg−1·min−1) consumed a supplement the evening before each 4-km TT on a stationary cycle ergometer. Indices of sleep quality were assessed with wrist-based actigraphy. There were no differences between the CP and LA supplements in terms of total time in bed, total sleep time, or sleep efficiency in Study 1 (LA: 568 ± 71 min, 503 ± 67 min, 88.3% ± 3.4%; CP: 546 ± 30 min, 479 ± 35 min, 87.8% ± 3.1%; p = .41, p = .32, p = .74, respectively) or Study 2 (LA: 519 ± 90 min, 450 ± 78 min, 87.2% ± 7.6%; CP: 536 ± 62 min, 467 ± 57 min, 87.3% ± 6.4%; p = .43, p = .44, p = .97, respectively). Similarly, time to complete the 4-km TT was unaffected by supplementation in Study 1 (LA: 274.9 ± 7.6 s; CP: 275.5 ± 7.2 s; p = .62) and Study 2 (LA: 344.3 ± 22.3 s; CP: 343.3 ± 23.0 s; p = .50). Thus, relative to CP, consuming LA 2 hr prior to sleep over 1–3 days did not improve actigraphy-based indices of sleep quality or 4-km TT performance in cyclists.

scholarly journals Clinical Efficacy of Traditional Chinese Medicine, Suan Zao Ren Tang, for Sleep Disturbance during Methadone Maintenance: A Randomized, Double-Blind, Placebo-Controlled Trial

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Yuan-Yu Chan ◽  
Yi-Hung Chen ◽  
Szu-Nian Yang ◽  
Wan-Yu Lo ◽  
Jaung-Geng Lin
Keyword(s):  
Sleep Quality ◽  
Sleep Disturbances ◽  
Methadone Maintenance ◽  
Controlled Trial ◽  
Intervention Group ◽  
Placebo Treatment ◽  
Sleep Efficiency ◽  
Opiate Dependence ◽  
Double Blind ◽  
Sleep Complaints

Methadone maintenance therapy is an effective treatment for opiate dependence, but more than three-quarters of persons receiving the treatment report sleep quality disturbances. In this double-blind, randomized, controlled trial, we recruited 90 individuals receiving methadone for at least one month who reported sleep disturbances and had Pittsburgh Sleep Quality Index (PSQI) scores > 5. The purpose of this study was to determine whether Suan Zao Ren Tang, one of the most commonly prescribed traditional Chinese medications for treatment of insomnia, improves subjective sleep among methadone-maintained persons with disturbed sleep quality. Ninety patients were randomly assigned to intervention group (n=45) and placebo group (n=45), and all participants were analyzed. Compared with placebo treatment, Suan Zao Ren Tang treatment for four weeks produced a statistically significant improvement in the mean total PSQI scores (P=0.007) and average sleep efficiency (P=0.017). All adverse events (e.g., lethargy, diarrhea, and dizziness) were mild in severity. Suan Zao Ren Tang is effective for improving sleep quality and sleep efficiency among methadone-maintained patients with sleep complaints.

scholarly journals Effects of melatonin on sleep disturbances in multiple sclerosis: A randomized, controlled pilot study

2021 ◽  
Vol 7 (4) ◽  
pp. 205521732110487
Author(s):  
Wan-Yu Hsu ◽  
Annika Anderson ◽  
William Rowles ◽  
Katherine E. Peters ◽  
Vicki Li ◽  
...  
Keyword(s):  
Multiple Sclerosis ◽  
Sleep Quality ◽  
Sleep Disturbances ◽  
Total Sleep Time ◽  
Low Cost ◽  
Sleep Time ◽  
Sleep Efficiency ◽  
Double Blind ◽  
Randomized Controlled ◽  
Patient Reported

Background Sleep disturbances are commonly reported by people with multiple sclerosis (PwMS). However, optimal management of sleep disturbances is uncertain, and objective studies of sleep quality in PwMS are scarce. Objectives To determine the effect of exogenous melatonin on sleep quality and sleep disturbances in PwMS. Methods Thirty adult PwMS reporting sleep difficulties were recruited in a randomized, controlled, double-blind cross-over study. They took either melatonin or placebo for 2 weeks, and the opposite for the following 2 weeks. During weeks 2 and 4, an actigraph was used to capture mean total sleep time and sleep efficiency. Patient-reported outcomes (PROs) were collected at weeks 0, 2 and 4. Results Melatonin use significantly improved mean total sleep time ( p = 0.03), with a trend towards higher sleep efficiency ( p = 0.06). No PROs were significantly different; there was a trend for melatonin use to decrease mean Insomnia Severity Index score ( p = 0.07), improve Pittsburgh Sleep Quality Index sleep quality component ( p = 0.07), and improve NeuroQoL-Fatigue ( p = 0.06). No other PROs showed differences between melatonin and placebo; nor did step count measured by actigraphy (all p > 0.45). Conclusion These results provide preliminary evidence that melatonin, a low-cost, over-the-counter supplement, could improve objective measures of sleep quality in PwMS.

scholarly journals Sleep lifestyle correlate of dizziness among teachers

2020 ◽  
Author(s):  
Daiane Soares de Almeida Ciquinato ◽  
Paula Carolina Dias Gibrin ◽  
Carla Juliana Lotti Félix ◽  
Jessica Aparecida Bazoni ◽  
Luciana Lozza de Moraes Marchiori
Keyword(s):  
Young Adults ◽  
Sleep Quality ◽  
Sleep Time ◽  
Cross Sectional Study ◽  
Sleep Efficiency ◽  
Poor Sleep ◽  
Moderate Correlation ◽  
Cross Sectional ◽  
Time In Bed ◽  
Significant Difference

Abstract Introduction Some studies have shown associations between sleep quality and dizziness. However, this association has not been investigated in teachers. Objective To verify a possible association between dizziness complaint and sleep quality in teachers. Methods Cross-sectional study developed with 96 school teachers (mean age of 47.8 ± 9.8 years). To assess dizziness, an audiological assessment was performed, which was the same one used in routine audiological care (Miller protocol). The dizziness handicap inventory (DHI) was applied to those individuals who reported dizziness. To evaluated sleep quality, the Pittsburgh sleep quality index was used. Results The prevalence of dizziness was 22.9% (n = 22). Of these, 77.3% (n = 17) were women, 63.6% (n = 14) demonstrated poor sleep quality, and 54.5% (n = 12) were young adults (27–48 years). In the comparison between the dizziness and the control groups, no statistically significant differences were found (p> 0.05). The analysis adjusted for the confounding variables showed a difference for men in the sleep efficiency variable (p = 0.043); young adults showed a statistically significant difference in the total score (p = 0.021) and total sleep time (p = 0.029). There was a moderate correlation between DHI and total time in bed (p = 0.036, r = 0.497) and DHI and sleep efficiency (p = 0.014; r = -0.582). Conclusion Dizziness influences the quality of sleep in teachers, especially that of the youngest and male patients. There was a moderate correlation between total time in bed, sleep efficiency, and DHI, demonstrating that sleep quality should be considered an important factor in the assessment and rehabilitation process of dizziness.

scholarly journals Efficacy of Polygonatum sibiricum on Mild Insomnia: A Randomized Placebo-Controlled Trial

Nutrients ◽  
2019 ◽  
Vol 11 (8) ◽  
pp. 1719 ◽  
Author(s):  
Ha ◽  
Hong ◽  
Kim ◽  
Hong ◽  
Lee ◽  
...  
Keyword(s):  
Placebo Group ◽  
Sleep Quality ◽  
Controlled Trial ◽  
Sleep Time ◽  
Brain Regions ◽  
Primary Outcome Measure ◽  
Human Model ◽  
Secondary Outcome ◽  
Double Blind ◽  
Significant Group

Polygonatum sibiricum (PS) rhizome, which contains glyceryl-1-monolinoleate as its primary active component, has been shown to improve insomnia in animal models. Based on these findings, we aimed to investigate the safety and efficacy of PS rhizome extract in improving sleep quality in individuals with mild insomnia. Eighty individuals with mild insomnia were enrolled in a four-week, randomized, double-blind, placebo-controlled trial of PS rhizome extract (500 mg/day, n = 40, PS group) or placebo (n = 40, placebo group). The primary outcome measure was change in total score on the Athens Insomnia Scale (AIS) to indicate sleep quality. The secondary outcome measures included change in actigraphy data and perfusion levels in the brain regions within the default mode network (DMN), which is known to play a key role in insomnia. The PS group showed greater improvement in the total AIS score with a significant increase in total sleep time, relative to the placebo group. In addition, significant group-by-visit interactions were observed in the perfusion level of the medial prefrontal cortex within the DMN. Findings of the current study provide first evidence that PS rhizome extract could be an effective natural ingredient for improving sleep in mild insomnia using a human model.

scholarly journals Tasimelteon safely and effectively improves sleep in Smith–Magenis syndrome: a double-blind randomized trial followed by an open-label extension

2021 ◽  
Author(s):  
Christos M. Polymeropoulos ◽  
Justin Brooks ◽  
Emily L. Czeisler ◽  
Michaela A. Fisher ◽  
Mary M. Gibson ◽  
...  
Keyword(s):  
Sleep Quality ◽  
Crossover Study ◽  
Total Sleep Time ◽  
Sleep Time ◽  
Open Label ◽  
Double Blind ◽  
Open Label Study ◽  
Label Study ◽  
Sleep Complaints ◽  
Open Label Extension

Abstract Purpose To assess the efficacy of tasimelteon to improve sleep in Smith–Magenis syndrome (SMS). Methods A 9-week, double-blind, randomized, two-period crossover study was conducted at four US clinical centers. Genetically confirmed patients with SMS, aged 3 to 39, with sleep complaints participated in the study. Patients were assigned to treatment with tasimelteon or placebo in a 4-week crossover study with a 1-week washout between treatments. Eligible patients participated in an open-label study and were followed for >3 months. Results Improvement of sleep quality (DDSQ50) and total sleep time (DDTST50) on the worst 50% of nights were primary endpoints. Secondary measures included actigraphy and behavioral parameters. Over three years, 52 patients were screened, and 25 patients completed the randomized portion of the study. DDSQ50 significantly improved over placebo (0.4, p = 0.0139), and DDTST50 also improved (18.5 minutes, p = 0.0556). Average sleep quality (0.3, p = 0.0155) and actigraphy-based total sleep time (21.1 minutes, p = 0.0134) improved significantly, consistent with the primary outcomes. Patients treated for ≥90 days in the open-label study showed persistent efficacy. Adverse events were similar between placebo and tasimelteon. Conclusion Tasimelteon safely and effectively improved sleep in SMS.

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