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1.
Br Poult Sci ; 65(1): 79-86, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37955138

RESUMO

1. Xylo-oligosaccharides (XOS) stimulate proliferation of beneficial bacteria in the gastrointestinal tract of broiler chickens. This results in enhanced utilisation of dietary non-starch polysaccharides and increased production of valuable short-chain fatty acids. However, these positive effects do not always translate into improved bird productive performance, with inconsistent performance responses observed between bird trials.2. A holo-analysis was conducted to determine the effects of supplementing XOS into broiler diets on bird feed intake, body weight gain, feed conversion and mortality. This was done by comparing the XOS supplemented treatment to the control treatment. A total of 53 studies which met the criteria for inclusion were used in the analysis.3. The results showed that XOS had a notable positive impact on bird mortality; XOS reduced mortality by 0.69% for every 1% increment in the control group. XOS supplementation induced a positive effect on the feed conversion ratio (FCR). However, the efficacy of XOS at improving FCR was dependent on the efficiency of the control group (performance of the flock), and the concentration of total arabinoxylan, protein and phytase in the diet. There were insufficient data points to predict the effect of XOS on body weight and feed intake.4. In conclusion, the holo-analysis revealed that supplementing XOS to broiler chicken diets reduces bird mortality. XOS can also improve FCR, but the scale of response is dependent on the diet composition and control flock performance. Additional studies are required to confirm the effects of XOS on body weight and feed intake.


Assuntos
Galinhas , Oligossacarídeos , Animais , Oligossacarídeos/farmacologia , Suplementos Nutricionais , Ingestão de Alimentos , Peso Corporal
2.
Plant Biol (Stuttg) ; 25(6): 902-914, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37641387

RESUMO

Studies on plant responses to combined abiotic stresses are very limited, especially in major crop plants. The current study evaluated the response of chorismate mutase overexpressor (OxCM) rice line to combined UV light and drought stress. The experiments were conducted in pots in a growth chamber, and data were assessed for gene expression, antioxidant and hormone regulation, flavonoid accumulation, phenotypic variation, and amino acid accumulation. Wild-type (WT) rice had reduced the growth and vigour, while transgenic rice maintained growth and vigour under combined UV light and drought stress. ROS and lipid peroxidation analysis revealed that chorismate mutase (OsCM) reduced oxidative stress mediated by ROS scavenging and reduced lipid peroxidation. The combined stresses reduced biosynthesis of total flavonoids, kaempferol and quercetin in WT plants, but increased significantly in plants with OxCM. Phytohormone analysis showed that SA was reduced by 50% in WT and 73% in transgenic plants, while ABA was reduced by 22% in WT plants but increased to 129% in transgenic plants. Expression of chorismate mutase regulates phenylalanine biosynthesis, UV light and drought stress-responsive genes, e.g., phenylalanine ammonia lyase (OsPAL), dehydrin (OsDHN), dehydration-responsive element-binding (OsDREB), ras-related protein 7 (OsRab7), ultraviolet-B resistance 8 (OsUVR8), WRKY transcription factor 89 (OsWRKY89) and tryptophan synthase alpha chain (OsTSA). Moreover, OsCM also increases accumulation of free amino acids (aspartic acid, glutamic acid, leucine, tyrosine, phenylalanine and proline) and sodium (Na), potassium (K), and calcium (Ca) ions in response to the combined stresses. Together, these results suggest that chorismate mutase expression induces physiological, biochemical and molecular changes that enhance rice tolerance to combined UV light and drought stresses.


Assuntos
Oryza , Oryza/genética , Secas , Espécies Reativas de Oxigênio , Raios Ultravioleta , Aminoácidos , Corismato Mutase , Flavonoides
3.
Ann Intern Med ; 176(4): 524-535, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-36913687

RESUMO

BACKGROUND: Yoga, a multicomponent mind-body practice, improves several domains of physical and psychological health and may affect frailty in older adults. PURPOSE: To evaluate the available trial evidence on the effect of yoga-based interventions on frailty in older adults. DATA SOURCES: MEDLINE, EMBASE, and Cochrane Central from their inception to 12 December 2022. STUDY SELECTION: Randomized controlled trials evaluating the effect of yoga-based interventions, including at least 1 session of physical postures, on a validated frailty scale or single-item markers of frailty in adults aged 65 years or older. DATA EXTRACTION: Two authors independently screened articles and extracted data; 1 author assessed risk of bias with review from a second author. Disagreements were resolved through consensus and as-needed input from a third author. DATA SYNTHESIS: Thirty-three studies (n = 2384 participants) were identified in varied populations, including community dwellers, nursing home residents, and those with chronic disease. Yoga styles were primarily based on Hatha yoga and most often included Iyengar or chair-based methods. Single-item frailty markers included measures of gait speed, handgrip strength, balance, lower-extremity strength and endurance, and multicomponent physical performance measures; no studies included a validated definition of frailty. When compared with education or inactive control, there was moderate-certainty evidence that yoga improved gait speed and lower-extremity strength and endurance, low-certainty evidence for balance and multicomponent physical function measures, and very low-certainty evidence for handgrip strength. LIMITATION: Heterogeneity in study design and yoga style, small sample sizes, and reporting deficiencies leading to concerns for selection bias. CONCLUSION: Yoga may affect frailty markers that are associated with clinically meaningful outcomes in older adult populations but may not offer benefit over active interventions (for example, exercise). PRIMARY FUNDING SOURCE: None. (PROSPERO: CRD42020130303).


Assuntos
Fragilidade , Yoga , Humanos , Idoso , Força da Mão , Exercício Físico , Exame Físico
4.
Cryo Letters ; 44(1): 37-46, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36629840

RESUMO

BACKGROUND: Successful cryopreservation of bovine oocytes is very important for research and commercial applications. However, the survival and development rate of vitrified-thawed (VT) oocytes are lower than those of non-vitrified-thawed (non-VT) oocytes. OBJECTIVE: To investigate the effect of adding hydroxypropyl cellulose (HPC) to the vitrification solution for bovine oocytes. MATERIALS AND METHODS: For vitrification, bovine metaphase II oocytes were pretreated with a solution containing 10% ethylene glycol supplemented with 0, 10, 50, or 100 ug/mL HPC for 5 min, exposed to a solution containing 30% ethylene glycol supplemented with 0, 10, 50, or 100 ug/mL HPC for 30 s, and then directly plunged into liquid nitrogen. RESULTS: The survival rate of oocytes was significantly higher in the 50 HPC group than in the 0, 10, and 100 HPC groups. The reactive oxygen species level was lower in the non-VT and 50 HPC groups than in the other groups. The mRNA levels of proapoptotic genes (Bax) were lower in the non-VT, 0, and 50 HPC groups than in the other groups. The mRNA levels of antiapoptotic genes (BCl2) were higher in the non-VT than in the other groups. The development rates of embryos (day 8) obtained via parthenogenetic activation (PA) were determined in the non-VT, 0 HPC, and 50 HPC groups. The cleavage rate was significantly higher in the non-VT group. CONCLUSION: Supplementation of vitrification solution with HPC improves the survival of VT bovine oocytes and the development capacity of embryos derived from these oocytes via PA. doi.org/10.54680/fr23110110212.


Assuntos
Criopreservação , Vitrificação , Animais , Bovinos , Criopreservação/veterinária , Oócitos/fisiologia , Crioprotetores/farmacologia , Suplementos Nutricionais , Etilenoglicóis/farmacologia
5.
PLoS One ; 17(7): e0271045, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35802574

RESUMO

BACKGROUND: Foeniculum vulgare, F. vulgare, commonly known as fennel, is believed to be one of the world's oldest medicinal herbs and has been exploited by people for centuries as a nutritional aid for digestive disorders. In many southeast Asian countries, it is ingested as an after-meal snack, mukhvas, due to its breath-freshening and digestive aid properties. F. vulgare is used in some countries, such as Iran, as a complementary and alternative treatment for inflammatory bowel disease (IBD). METHODS: This study investigated the effects of fennel seed extract on intestinal epithelium barrier function and the Signal Transducer and Activator of Transcription (STAT) pathway. This pathway is active in inflammatory bowel disease. To study the protective effects of fennel seed extract in vitro, monolayers derived from the T84 colonic cell line were challenged with interferon-gamma (IFN-γ) and monitored with and without fennel seed extract. To complement our in vitro studies, the dextran sodium sulfate induced murine colitis model was employed to ascertain whether the protective effect of fennel seed extract can be recapitulated in vivo. RESULTS: Fennel seed extract was shown to exert a protective effect on transepithelial electrical resistance (TEER) in both T84 and murine models and showed increases in tight junction-associated mRNA in T84 cell monolayers. Both models demonstrated significant decreases in phosphorylated STAT1 (pSTAT1), indicating reduced activation of the STAT pathway. Additionally, mice treated with fennel seed showed significantly lower ulcer indices than control mice. CONCLUSIONS: We conclude barrier function of the gastrointestinal tract is improved by fennel seed extract, suggesting the potential utility of this agent as an alternative or adjunctive therapy in IBD.


Assuntos
Foeniculum , Doenças Inflamatórias Intestinais , Plantas Medicinais , Animais , Humanos , Doenças Inflamatórias Intestinais/tratamento farmacológico , Mucosa Intestinal , Camundongos , Extratos Vegetais/farmacologia , Sementes
6.
Biol Psychiatry ; 92(7): 573-582, 2022 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-35717211

RESUMO

BACKGROUND: Borderline personality disorder (BPD) is characterized by greater intensity of reactions to unpleasant emotional cues and a slower-than-normal return of these responses to baseline. Habituation is defined as decreased response to repeated stimulation. Affect-modulated startle (AMS), a translational psychophysiological approach, is mediated by the amygdala and used to study emotion processing in both humans and animals. This is the first study to examine the specificity of habituation anomalies in BPD during passive emotional and neutral picture processing. METHODS: A total of 90 participants were studied: patients with BPD (n = 35), patients with schizotypal personality disorder (n = 26; included as a psychopathological comparison group), and healthy control subjects (n = 29). Participants received rigorous clinical assessments, and patients were unmedicated. AMS was examined during a series of intermixed unpleasant, neutral, and pleasant pictures. RESULTS: Compared with the other groups, patients with BPD showed greater overall AMS during unpleasant pictures and prolonged habituation of startle amplitude during unpleasant pictures from early to later trials. The groups did not differ in AMS during neutral or pleasant pictures or self-reported picture valence. Among the patients with BPD, prolonged habituation to unpleasant pictures was associated with greater symptom severity and suicidal/self-harming behavior. CONCLUSIONS: These findings 1) indicate that abnormal processing of and habituation to unpleasant pictures is observed in BPD but not schizotypal personality disorder, suggesting that these deficits are not simply characteristics of personality disorders in general; 2) are consistent with studies showing deficient amygdala habituation to unpleasant pictures in BPD; and 3) have significant implications for clinical assessment and treatment of BPD, e.g., alternative therapies for BPD such as gradual exposure to unpleasant emotional stimuli or amygdala neurofeedback may aid habituation deficits.


Assuntos
Transtorno da Personalidade Borderline , Habituação Psicofisiológica , Tonsila do Cerebelo , Transtorno da Personalidade Borderline/psicologia , Emoções/fisiologia , Humanos , Transtornos da Personalidade , Reflexo de Sobressalto/fisiologia
7.
J Integr Complement Med ; 28(4): 309-319, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-35426733

RESUMO

Objectives: The primary objectives of this pilot trial were to assess the study feasibility and acceptability of the 12-week yoga and educational film programs for the management of restless legs syndrome (RLS) in preparation for a future randomized controlled trial (RCT). Materials and Methods: This pilot, parallel-arm, randomized feasibility trial was conducted at two sites, Morgantown, WV and Columbus, OH. Yoga group participants attended 75-min Iyengar yoga classes, twice weekly for 4 weeks, then once a week for 8 weeks (16 total classes), and completed a 30-min homework routine on nonclass days. Educational film group participants attended once weekly, 75-min classes (12 total classes), which included information on RLS and other sleep disorders, RLS management including sleep hygiene practices, and complementary therapies. Feasibility and acceptability outcomes included program satisfaction and recruitment, retention, and adherence rates. In addition, participants were asked their preferences regarding three yoga class schedule scenarios for a future study. Attendance, yoga, and treatment logs were collected weekly. Program evaluation and yoga scheduling questionnaires were collected at week 12. Results: Forty-one adults with moderate to severe RLS were randomized to a 12-week yoga (n = 19) or educational film (n = 22) program. Thirty participants (73%) completed the program. Yoga and education group participants attended an average of 13.0 ± 0.84 (81%) and 10.3 ± 0.3 classes (85%), respectively. Participants from both groups indicated satisfaction with the study. All yoga group respondents to the program evaluation reported they would likely (n = 6) or very likely (n = 7) continue yoga practice; 86.7% of education group respondents (13 of 15) indicated that they were likely (n = 7) or very likely (n = 6) to make lasting changes based on what they had learned. The preferred schedule for a future study was a 16-week study with once-weekly yoga classes. Conclusions: The findings of this study suggest that a larger RCT comparing yoga with an educational film group for the management of RLS is feasible. Trial registration: Clinicaltrials.gov: NCT03570515; 02/01/2017.


Assuntos
Meditação , Síndrome das Pernas Inquietas , Yoga , Adulto , Estudos de Viabilidade , Humanos , Filmes Cinematográficos , Síndrome das Pernas Inquietas/terapia
8.
Psychiatry Res Neuroimaging ; 322: 111463, 2022 06.
Artigo em Inglês | MEDLINE | ID: mdl-35240516

RESUMO

Schizotypal personality disorder (SPD) resembles schizophrenia, but with attenuated brain abnormalities and the absence of psychosis. The thalamus is integral for processing and transmitting information across cortical regions and widely implicated in the neurobiology of schizophrenia. Comparing thalamic connectivity in SPD and schizophrenia could reveal an intermediate schizophrenia-spectrum phenotype to elucidate neurobiological risk and protective factors in psychosis. We used rsfMRI to investigate functional connectivity between the mediodorsal nucleus (MDN) and pulvinar, and their connectivity with frontal and temporal cortical regions, respectively in 43 healthy controls (HCs), and individuals in the schizophrenia-spectrum including 45 psychotropic drug-free individuals with SPD, and 20 individuals with schizophrenia-related disorders [(schizophrenia (n = 10), schizoaffective disorder (n = 8), schizophreniform disorder (n = 1) and psychosis NOS (n = 1)]. Individuals with SPD had greater functional connectivity between the MDN and pulvinar compared to individuals with schizophrenia. Thalamo-frontal (i.e., between the MDN and rostral middle frontal cortex) connectivity was comparable in SPD and HCs; in SPD greater connectivity was associated with less symptom severity. Individuals with schizophrenia had less thalamo-frontal connectivity and thalamo-temporal (i.e., pulvinar to the transverse temporal cortex) connectivity compared with HCs. Thalamo-frontal functional connectivity may be comparable in SPD and HCs, but abnormal in schizophrenia, and that this may be protective against psychosis in SPD.


Assuntos
Esquizofrenia , Transtorno da Personalidade Esquizotípica , Humanos , Imageamento por Ressonância Magnética , Esquizofrenia/diagnóstico por imagem , Transtorno da Personalidade Esquizotípica/diagnóstico por imagem , Lobo Temporal , Tálamo/diagnóstico por imagem
9.
Poult Sci ; 101(4): 101705, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-35183990

RESUMO

Two consecutive 35 d experiments were conducted to investigate the effects of a multistrain DFM fed continuously to broiler chickens exposed to HS from 28 to 35 d on broiler performance, body composition, ileal digestibility, and intestinal permeability using serum Fluorescein Isothiocyanate Dextran (FITC-d) concentration. The treatments were arranged as a 2 × 2 factorial with temperature: Elevated (HS: 33 ± 2°C for 6 h and 27.7°C for the remaining 18 h from 28 to 35 days of age) and Thermoneutral (TN: 22 to 24°C over the entire 24-h day from 28 to 35 days of age) and diet: corn-soybean meal based with and without DFM (3-strain Bacillus; Enviva PRO) fed over the entire 35-d period as the two factors. Experimental diets were formulated to meet all nutrient recommendations based on breed standards using a starter (0-10 d), grower (10-21 d), and finisher (21-35 d) period. For each of the 2 experiments, 648 Ross 708 broiler chicks were allotted among the treatments with 9 replicate pens of 18 broilers. Data were analyzed as a 2 × 2 factorial within each experiment in JMP 14. In both experiments, cloacal temperatures were increased (P ≤ 0.05) in the broilers subjected to the HS treatment at both 28 d (acute) and 35 d (chronic). Supplementing birds with DFM reduced cloacal temperatures in the Experiment 1 at 28 d, but not at the other time periods. The HS treatment reduced body weight gain and lean tissue accretion from 0 to 35 d in both experiments (P ≤ 0.05). In Experiment 2, when the litter was reused BWG was increased by 36 g/bird with supplementation of DFM (P ≤ 0.05). Ileal digestibility at 28 d (2 h post HS) was improved with DFM supplementation in both experiments (P ≤ 0.05). Serum FITC-d increased with HS at both 28 and 35 d. Serum FITC-d was generally decreased with DFM at 28 d but the response was inconsistent at 35 d. Overall, the results suggest that HS reduced broiler performance and DFM treatment improved intestinal permeability and nutrient digestibility responses to HS in both experiments but did not improve performance until built up litter was used in Experiment 2.


Assuntos
Galinhas , Transtornos de Estresse por Calor , Ração Animal/análise , Fenômenos Fisiológicos da Nutrição Animal , Animais , Galinhas/fisiologia , Dieta/veterinária , Suplementos Nutricionais/análise , Fluoresceína-5-Isotiocianato , Transtornos de Estresse por Calor/veterinária , Resposta ao Choque Térmico , Melhoramento Vegetal
10.
J Alzheimers Dis Rep ; 5(1): 187-206, 2021 Mar 11.
Artigo em Inglês | MEDLINE | ID: mdl-33981956

RESUMO

BACKGROUND: Recent studies suggest meditation and music listening (ML) may improve cognitive and psychosocial outcomes in adults with subjective cognitive decline (SCD). However, lack of a usual care group has limited conclusions. OBJECTIVE: To assess the: 1) feasibility of incorporating an enhanced usual care (EUC) comparator in a trial of Kirtan Kriya meditation (KK) and ML for adults experiencing SCD; and 2) preliminary effects of active treatment (KK/ML) versus an EUC program. METHODS: Forty participants with SCD were randomized 1:1:2 to a 12-week KK, ML, or EUC program. KK and ML participants were asked to practice 12 minutes/day; EUC participants were given a comprehensive educational packet regarding healthy aging and strategies for improving/maintaining brain health and asked to record any activities or strategies used. Feasibility was assessed using measures of retention, adherence, treatment expectancies, and participant satisfaction, as well as information from exit questionnaires and daily practice/activity logs. Cognitive functioning, stress, mood, sleep-quality, and health-related quality of life (QOL) were measured pre- and post-intervention using well-validated instruments. RESULTS: Thirty-two participants (80%) completed the 3-month study, with retention highest in the EUC group (p < 0.05). Active treatment participants averaged 6.0±0.4 practice sessions/week, and EUC participants, 7.5±0.6 brain health activities/week. Treatment expectancies were similar across groups. EUC participants indicated high satisfaction with the program and study. Despite limited study power, the active treatment group showed significantly greater gains in subjective memory functioning (ps≤0.025) and nonsignificant improvements in cognitive performance (TMT-B), perceived stress, QOL, and mood (ps≤0.08) compared to the EUC group. CONCLUSION: Findings of this pilot feasibility trial suggest incorporation of an EUC program is feasible, and that participation in a simple 12-week relaxation program may be helpful for adults with SCD versus engagement in an EUC program.

11.
Exp Brain Res ; 239(6): 1853-1862, 2021 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-33846841

RESUMO

The suppression head impulse test paradigm (SHIMP) is a newly described indicator of vestibular function which yields two measures: vestibulo-ocular reflex (VOR) gain and a saccadic response. It is an alternative and complementary test to the head impulse test paradigm (HIMP). Parkinson's disease (PD) has known saccadic and central vestibular pathway dysfunction. This paper is the first description of SHIMP VOR gain and saccade characteristic in this population. This prospective observational study measured the SHIMP VOR gain and saccade characteristics in 39 participants with idiopathic PD and compared this to 40 healthy controls (HC). The effect of group, demographic variables and SHIMP characteristics were evaluated. SHIMP VOR gains were not significantly different between groups (p = 0.10). Compared to HC, the PD group mean SHIMP peak saccade velocity was significantly reduced by an average of 77.07°/sec (p < 0.001), and SHIMP saccade response latency was longer, with an average delay of 23.5 ms (p = 0.003). SHIMP saccade peak velocity was also associated with both head impulse velocity (p = 0.002) and SHIMP VOR gain (p = 0.004) variables, but there was no significant influence of these variables when SHIMP saccade peak velocity was considered as a predictor of PD (p = 0.52-0.91). VOR gains were unaffected by PD. PD-specific saccadic dysfunction, namely reduced peak saccade velocities and prolonged response latencies, were observed in the SHIMP-induced saccade responses. VOR gain using slow phase eye velocity is preferred as the indicator of vestibular function in the SHIMPs paradigm as non-vestibular factors affected saccade peak velocity.


Assuntos
Doença de Parkinson , Vestíbulo do Labirinto , Teste do Impulso da Cabeça , Humanos , Doença de Parkinson/complicações , Reflexo Vestíbulo-Ocular , Movimentos Sacádicos
12.
J Manipulative Physiol Ther ; 44(4): 330-343, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-33896602

RESUMO

OBJECTIVE: In this cross-sectional study, we examined correlates of manual therapy (spinal manipulation, massage therapy) and/or acupuncture use in a population engaging in conventional pain care in West Virginia. METHODS: Participants were patients (aged 18+ years) from 4 Appalachian pain and rheumatology clinics. Of those eligible (N = 343), 88% completed an anonymous survey including questions regarding health history, pain distress (Short Form Global Pain Scale), prescription medications, and current use of complementary health approaches for pain management. We used age-adjusted logistic regression to assess the relation of sociodemographic, lifestyle, and health-related factors to use of manual therapies and/or acupuncture for pain (complete-case N = 253). RESULTS: The majority of participants were white (92%), female (56%), and middle aged (mean age, 54.8 ± 13.4 years). Nearly all reported current chronic pain (94%), and 56% reported ≥5 comorbidities (mean, 5.6 ± 3.1). Manual therapy and/or acupuncture was used by 26% of participants for pain management (n = 66). Current or prior opioid use was reported by 37% of those using manual therapies. Manual therapy and/or acupuncture use was significantly elevated in those using other complementary health approaches (adjusted odds ratio, 3.0; 95% confidence interval, 1.5-5.8). Overall Short Form Global Pain Scale scores were not significantly associated with use of manual therapies and/or acupuncture after adjustment (adjusted odds ratio per 1-point increase, 1.01; 95% confidence interval, 1.00-1.03). CONCLUSION: We found no evidence for an association of pain-related distress and use of manual therapies and/or acupuncture, but identified a strong association with use of dietary supplements and mind-body therapies. Larger studies are needed to further examine these connections in the context of clinical outcomes and cost-effectiveness in rural adults given their high pain burden and unique challenges in access to care.


Assuntos
Terapia por Acupuntura/estatística & dados numéricos , Dor Crônica/terapia , Dor Lombar/terapia , Manipulação da Coluna/estatística & dados numéricos , Aceitação pelo Paciente de Cuidados de Saúde/estatística & dados numéricos , População Rural/estatística & dados numéricos , Adulto , Idoso , Estudos Transversais , Feminino , Humanos , Masculino , Massagem/estatística & dados numéricos , Pessoa de Meia-Idade , Manejo da Dor , Inquéritos e Questionários , West Virginia , Adulto Jovem
13.
Eur Arch Otorhinolaryngol ; 278(6): 2057-2065, 2021 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-33112983

RESUMO

PURPOSE: Parkinson's disease (PD) is a neurodegenerative disorder with possible vestibular system dysfunction. This study reports the transient and sustained functions of the otoliths and their reflex pathways in PD compared to healthy controls (HC) and determines if otolith function relates to previous fall history. METHODS: Forty participants with PD and 40 HC had their otolith function assessed. Transient saccular and utricular-mediated reflexes were assessed by cervical and ocular vestibular evoked myogenic potentials (cVEMPs and oVEMPs, respectively) elicited by air-conducted stimulus (clicks) and bone-conducted vibration (light tendon hammer taps). Static otolith function was assessed by the Curator Subjective Visual Vertical (SVV) test. RESULTS: Compared to HC, the PD group had significantly more absent cVEMP responses to both clicks (47.5% vs. 30%, respectively, p = 0.03) and taps (21.8% vs. 5%, respectively, p = 0.002). Only the PD group had bilaterally absent tap cVEMPs, this was related to previous falls history (p < 0. 001). In both groups, click oVEMPs were predominantly absent, and tap oVEMPs were predominantly present. The PD group had smaller tap oVEMP amplitudes (p = 0.03) and recorded more abnormal SVV responses (p = 0.01) and greater error on SVV compared to HC, p < 0.001. SVV had no relationship with VEMP responses (p = 0.14). CONCLUSIONS: PD impacts on cVEMP reflex pathways but not tap oVEMP reflex pathways. Bone-conducted otolith stimuli (taps) are more robust than air-conducted sound stimuli (clicks) for both o and cVEMPs. A lack of association between SVV and VEMP responses suggest that static and dynamic otolith functions are differentially affected in PD.


Assuntos
Doença de Parkinson , Potenciais Evocados Miogênicos Vestibulares , Estimulação Acústica , Humanos , Membrana dos Otólitos , Reflexo
14.
Poult Sci ; 99(9): 4373-4383, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32867981

RESUMO

Effects of dietary Original XPC (XPC) on 17 selected blood variables in commercial layer pullets challenged with the virulent, low-passage R strain of Mycoplasma gallisepticum (RlowMG) were investigated. Hy-Line W-36 pullets sourced from M. gallisepticum-clean layer breeders were fed a basal diet with XPC (1.25 kg/metric ton) or without from hatch until 12 wk of age (woa). At 8 and 10 woa, half of the birds in each dietary treatment were challenged with RlowMG. Blood samples were taken immediately before the initial RlowMG challenge at 8 woa and again at 12 woa (4 wk after challenge). At 8 woa, blood pH was lower and glucose concentration was higher in the preassigned challenge treatment groups. At 12 woa, the concentration of oxygen dissolved in the blood was significantly lower in the RlowMG-challenged group than the unchallenged group of birds regardless of dietary treatment. The RlowMG challenge significantly increased blood carbon dioxide partial pressure, calcium, sodium, anion gap, osmolality, glucose, and corticosterone levels but significantly decreased blood oxygen partial pressure, oxyhemoglobin concentration, concentration of oxygen dissolved in the blood, chloride, and pH levels. Because blood pH and glucose concentration at 8 woa were examined before challenge, their baseline values were biased with respect to challenge treatment before treatment was applied. However, the lack of a significant main effect due to diet at 8 woa for blood pH and glucose concentration, along with the other 15 blood variables, indicate that the baseline data with respect to dietary treatment were unbiased, allowing for real dietary effects to be accurately assessed. In conclusion, layer pullets challenged with RlowMG undergo a stress response associated with changes in various physiological blood variables, and a decrease in pH and increase in carbon dioxide partial pressure, in association with a lack of change in bicarbonate, indicates that the stress response caused by the RlowMG challenge was associated with respiratory acidosis. Nevertheless, feeding XPC did not influence the effects of challenge treatment on these postchallenge physiological blood values.


Assuntos
Galinhas , Suplementos Nutricionais , Alimentos Fermentados , Infecções por Mycoplasma , Mycoplasma gallisepticum , Doenças das Aves Domésticas , Animais , Dieta/veterinária , Feminino , Infecções por Mycoplasma/sangue , Infecções por Mycoplasma/prevenção & controle , Infecções por Mycoplasma/veterinária , Doenças das Aves Domésticas/sangue , Doenças das Aves Domésticas/prevenção & controle
16.
J Clin Sleep Med ; 16(1): 107-119, 2020 01 15.
Artigo em Inglês | MEDLINE | ID: mdl-31957638

RESUMO

STUDY OBJECTIVES: To assess the effects of a yoga versus educational film (EF) program on restless legs syndrome (RLS) symptoms and related outcomes in adults with RLS. METHODS: Forty-one community-dwelling, ambulatory nonpregnant adults with moderate to severe RLS were randomized to a 12-week yoga (n = 19) or EF program (n = 22). In addition to attending classes, all participants completed practice/treatment logs. Yoga group participants were asked to practice at home 30 minutes per day on nonclass days; EF participants were instructed to record any RLS treatments used on their daily logs. Core outcomes assessed pretreatment and posttreatment were RLS symptoms and symptom severity (International RLS Study Group Scale (IRLS) and RLS ordinal scale), sleep quality, mood, perceived stress, and quality of life (QOL). RESULTS: Thirty adults (13 yoga, 17 EF), aged 24 to 73 (mean = 50.4 ± 2.4 years), completed the 12-week study (78% female, 80.5% white). Post-intervention, both groups showed significant improvement in RLS symptoms and severity, perceived stress, mood, and QOL-mental health (P ≤ .04). Relative to the EF group, yoga participants demonstrated significantly greater reductions in RLS symptoms and symptom severity (P ≤ .01), and greater improvements in perceived stress and mood (P ≤ .04), as well as sleep quality (P = .09); RLS symptoms decreased to minimal/mild in 77% of yoga group participants, with none scoring in the severe range by week 12, versus 24% and 12%, respectively, in EF participants. In the yoga group, IRLS and RLS severity scores declined with increasing minutes of homework practice (r = .7, P = .009 and r = .6, P = .03, respectively), suggesting a possible dose-response relationship. CONCLUSIONS: Findings of this exploratory RCT suggest that yoga may be effective in reducing RLS symptoms and symptom severity, decreasing perceived stress, and improving mood and sleep in adults with RLS. CLINICAL TRIAL REGISTRATION: Registry: Clinicaltrials.gov; Title: Yoga vs. Education for Restless Legs: a Feasibility Study; Identifier: NCT03570515; URL: https://clinicaltrials.gov/ct2/show/NCT03570515.


Assuntos
Síndrome das Pernas Inquietas , Yoga , Adulto , Estudos de Viabilidade , Feminino , Humanos , Masculino , Qualidade de Vida , Síndrome das Pernas Inquietas/complicações , Síndrome das Pernas Inquietas/terapia , Índice de Gravidade de Doença , Sono
17.
Eur J Nucl Med Mol Imaging ; 46(7): 1417-1427, 2019 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-30941463

RESUMO

PURPOSE: The purpose of this study was to determine the prognostic value of metabolic volumetric parameters as a quantitative index on pre-treatment 18F-FDG PET/CT in addition to the National Comprehensive Cancer Network International Prognostic Index (NCCN-IPI) in patients with diffuse large B-cell lymphoma (DLBCL). METHODS: A total of 103 consecutive patients with DLBCL and baseline FDG PET/CT were retrospectively evaluated. Quantitative metabolic parameters, including total metabolic tumour volume (TMTV) using a standardized uptake value (SUV) of ≥2.5 as the threshold, were estimated. Receiver operating characteristic curve analysis was used to determine the optimal cut-off values for the metabolic parameters. The relationships between study variables and patient survival were tested using Cox regression analysis. Patient survival rates were derived from Kaplan-Meier curves and compared using the log-rank test. RESULTS: Median follow-up was 34 months. In patients with a low TMTV (<249 cm3), the 3-year progression free survival (PFS) rate was 83% and the overall survival (OS) rate was 92%, in contrast to 41% and 57%, respectively, in those with a high TMTV (≥249 cm3). In univariate analysis, a high TMTV and NCCN-IPI ≥4 were associated with inferior PFS and OS (P < 0.0001 for all), as was a high total lesion glycolysis (P = 0.004 and P = 0.005, respectively). In multivariate analysis, TMTV and NCCN-IPI were independent predictors of PFS (hazard ratio, HR, 3.11, 95% confidence interval, CI, 1.37-7.07, P = 0.007, and HR 3.42, 95% CI 1.36-8.59, P = 0.009, respectively) and OS (HR 3.41, 95% CI 1.24-9.38, P = 0.017, and HR 5.06, 95% CI 1.46-17.60, P = 0.014, respectively). TMTV was able to separate patients with a high-risk NCCN-IPI of ≥4 (n = 62) into two groups with significantly different outcomes; patients with low TMTV (n = 16) had a 3-year PFS rate of 75% and an OS rate of 88%, while those with a high TMTV had a 3-year PFS rate of 32% and an OS rate of 47% (χ2 = 7.92, P = 0.005, and χ2 = 8.26, P = 0.004, respectively). However, regardless of TMTV, patients with a low-risk NCCN-IPI of <4 (n = 41) had excellent outcomes (3-year PFS and OS rates of 85% and 95%, respectively). CONCLUSION: Pretreatment TMTV was an independent predictor of survival in patients with DLBCL. Importantly, TMTV had an additive prognostic value in patients with a high-risk NCCN-IPI. Thus, the combination of baseline TMTV with NCCN-IPI may improve the prognostication and may be helpful guide the decision for intensive therapy and clinical trials, especially in DLBCL patients with a high-risk NCCN-IPI.


Assuntos
Linfoma Difuso de Grandes Células B/diagnóstico por imagem , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Progressão da Doença , Intervalo Livre de Doença , Feminino , Fluordesoxiglucose F18 , Humanos , Estimativa de Kaplan-Meier , Linfoma Difuso de Grandes Células B/terapia , Masculino , Pessoa de Meia-Idade , Prognóstico , Intervalo Livre de Progressão , Modelos de Riscos Proporcionais , Curva ROC , Estudos Retrospectivos , Índice de Gravidade de Doença , Carga Tumoral , Adulto Jovem
18.
Trials ; 20(1): 134, 2019 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-30770767

RESUMO

BACKGROUND: Restless legs syndrome (RLS) is a common and burdensome sleep disorder associated with profound impairment of health, well-being, and quality of life. Unfortunately, the medications used for RLS management carry risk of serious side effects, including augmentation of symptoms. Yoga, an ancient mind-body discipline designed to promote physical, emotional, and mental well-being, may offer a viable, low-risk new treatment. The primary objectives of this pilot, parallel-arm, randomized controlled trial (RCT) are to assess the acceptability and feasibility of a 12-week yoga vs. educational film program for the management of RLS. METHODS: Forty-four adults with confirmed moderate to severe RLS will be recruited and randomized to a 12-week yoga (n = 22) or standardized educational film program (N = 22). Yoga group participants will attend two 75-min Iyengar yoga classes per week for the first 4 weeks, then one 75-min class per week for the remaining 8 weeks, and will complete a 30-min homework routine on non-class days. Educational film group participants will attend one 75-min class per week for 12 weeks and complete a daily RLS treatment log; classes will include information on: RLS management, including sleep hygiene practices; other sleep disorders; and complementary therapies likely to be of interest to those participating in a yoga and sleep education study. Yoga and treatment logs will be collected weekly. Feasibility outcomes will include recruitment, enrollment, and randomization rates, retention, adherence, and program satisfaction. Program evaluation and yoga-dosing questionnaires will be collected at week 12; data on exploratory outcomes (e.g., RLS symptom severity (IRLS), sleep quality (PSQI), mood (POMS, PSS), and health-related quality of life (SF-36)) will be gathered at baseline and week 12. DISCUSSION: This study will lay the essential groundwork for a planned larger RCT to determine the efficacy of a yoga program for reducing symptoms and associated burden of RLS. If the findings of the current trial and the subsequent larger RCTs are positive, this study will also help support a new approach to clinical treatment of this challenging disorder, help foster improved understanding of RLS etiology, and ultimately contribute to reducing the individual, societal, and economic burden associated with this condition. TRIAL REGISTRATION: ClinicalTrials.gov, ID: NCT03570515 . Retrospectively registered on 1 February 2017.


Assuntos
Filmes Cinematográficos , Educação de Pacientes como Assunto/métodos , Síndrome das Pernas Inquietas/terapia , Yoga , Estudos de Viabilidade , Florida , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Aceitação pelo Paciente de Cuidados de Saúde , Projetos Piloto , Qualidade de Vida , Ensaios Clínicos Controlados Aleatórios como Assunto , Síndrome das Pernas Inquietas/diagnóstico , Síndrome das Pernas Inquietas/fisiopatologia , Síndrome das Pernas Inquietas/psicologia , Fatores de Tempo , Resultado do Tratamento
19.
Aust J Prim Health ; 25(1): 31-36, 2019 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-30642427

RESUMO

Listening to personalised music is a simple and low-cost intervention with expected therapeutic benefits, including reduced agitation, stress responses and anxiety. While there is growing evidence for the use of personalised music as a therapeutic intervention, there has been little investigation into processes and strategies that would support the implementation of playlists. The aim of this study was to identify the perceived barriers and facilitators to implementing personalised playlists on a large scale in public healthcare settings. A mixed-methods approach was used to evaluate the feasibility of the intervention in 21 different acute, sub-acute and primary healthcare settings in New South Wales (NSW), Australia, between June 2016 and June 2017. Data collection included 153 survey responses (staff n=35, patients n=49 and family members n=69), six focus groups (staff n=21) and an analysis of 37 documents. Data sources were systematically categorised using a Policy Analysis Framework. Facilitators included the use of implementation leads and volunteers, a high level of staff engagement and the integration of music selection and playlist development into routine clinical practice. Barriers included ongoing and unexpected funding, time to prepare playlists and staff turnover. The results from this study support the feasibility and acceptability of implementing playlists in different healthcare settings.


Assuntos
Demência/reabilitação , Acessibilidade aos Serviços de Saúde/estatística & dados numéricos , Transtornos Mentais/reabilitação , Musicoterapia/métodos , Ferimentos e Lesões/reabilitação , Cuidados Críticos/métodos , Cuidados Críticos/psicologia , Demência/psicologia , Estudos de Viabilidade , Grupos Focais , Humanos , Pacientes Internados/psicologia , Transtornos Mentais/psicologia , Música/psicologia , New South Wales , Cuidados Paliativos/métodos , Cuidados Paliativos/psicologia , Satisfação do Paciente/estatística & dados numéricos , Atenção Primária à Saúde/métodos , Tratamento Domiciliar/métodos , Resultado do Tratamento , Ferimentos e Lesões/psicologia
20.
J Alzheimers Dis ; 66(3): 947-970, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30320574

RESUMO

BACKGROUND: Telomere length (TL), telomerase activity (TA), and plasma amyloid-ß (Aß) levels have emerged as possible predictors of cognitive decline and dementia. OBJECTIVE: To assess the: 1) effects of two 12-week relaxation programs on TL, TA, and Aß levels in adults with subjective cognitive decline; and 2) relationship of biomarker changes to those in cognitive function, psychosocial status, and quality of life (QOL). METHODS: Participants were randomized to a 12-week Kirtan Kriya meditation (KK) or music listening (ML) program and asked to practice 12 minutes/day. Plasma Aß(38/40/42) and peripheral blood mononuclear cell TL and TA were measured at baseline and 3 months. Cognition, stress, sleep, mood, and QOL were assessed at baseline, 3 months, and 6 months. RESULTS: Baseline blood samples were available for 53 participants (25 KK, 28 ML). The KK group showed significantly greater increases in Aß40 than the ML group. TA rose in both groups, although increases were significant only among those with higher practice adherence and lower baseline TA. Changes in both TL and TA varied by their baseline values, with greater increases among participants with values ≤50th percentile (ps-interaction <0.006). Both groups improved in cognitive and psychosocial status (ps ≤0.05), with improvements in stress, mood, and QOL greater in the KK group. Rising Aß levels were correlated with gains in cognitive function, mood, sleep, and QOL at both 3 and 6 months, associations that were particularly pronounced in the KK group. Increases in TL and TA were also correlated with improvements in certain cognitive and psychosocial measures. CONCLUSION: Practice of simple mind-body therapies may alter plasma Aß levels, TL, and TA. Biomarker increases were associated with improvements in cognitive function, sleep, mood, and QOL, suggesting potential functional relationships.


Assuntos
Doença de Alzheimer/diagnóstico , Peptídeos beta-Amiloides/sangue , Senescência Celular/fisiologia , Disfunção Cognitiva/diagnóstico , Meditação/psicologia , Música/psicologia , Telômero , Idoso , Idoso de 80 Anos ou mais , Doença de Alzheimer/sangue , Doença de Alzheimer/psicologia , Biomarcadores/sangue , Cognição/fisiologia , Disfunção Cognitiva/sangue , Disfunção Cognitiva/psicologia , Feminino , Humanos , Leucócitos Mononucleares/metabolismo , Masculino , Pessoa de Meia-Idade , Qualidade de Vida/psicologia , Sono , Estresse Psicológico/sangue , Estresse Psicológico/diagnóstico , Estresse Psicológico/psicologia , Telomerase/metabolismo , Resultado do Tratamento
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