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https://www.readbyqxmd.com/read/29049371/combining-epidemiology-with-basic-biology-of-sand-flies-parasites-and-hosts-to-inform-leishmaniasis-transmission-dynamics-and-control
#1
REVIEW
Orin Courtenay, Nathan C Peters, Matthew E Rogers, Caryn Bern
Quantitation of the nonlinear heterogeneities in Leishmania parasites, sand fly vectors, and mammalian host relationships provides insights to better understand leishmanial transmission epidemiology towards improving its control. The parasite manipulates the sand fly via production of promastigote secretory gel (PSG), leading to the "blocked sand fly" phenotype, persistent feeding attempts, and feeding on multiple hosts. PSG is injected into the mammalian host with the parasite and promotes the establishment of infection...
October 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/29045485/alterations-in-the-placental-methylome-with-maternal-obesity-and-evidence-for-metabolic-regulation
#2
Kohzoh Mitsuya, Ashley N Parker, Lu Liu, Jianhua Ruan, Margreet C M Vissers, Leslie Myatt
The inflammatory and metabolic derangements of obesity in pregnant women generate an adverse intrauterine environment, increase pregnancy complications and adverse fetal outcomes and program the fetus for obesity and metabolic syndrome in later life. We hypothesized that epigenetic modifications in placenta including altered DNA methylation/hydroxymethylation may mediate these effects. Term placental villous tissue was collected following cesarean section from lean (prepregnancy BMI<25) or obese (BMI>30) women...
2017: PloS One
https://www.readbyqxmd.com/read/29043111/a-retrospective-study-does-upper-airway-morphology-differ-between-non-positional-and-positional-obstructive-sleep-apnea
#3
Xiao Jiao, Jianyin Zou, Suru Liu, Jian Guan, Hongliang Yi, Shankai Yin
OBJECTIVE: The objective of this study was to explore the differences in upper airway morphology between positional (POSA) and non-positional (NPOSA) obstructive sleep apnea. METHODS: This retrospective study enrolled 75 patients (45 NPOSA and 30 POSA) who underwent polysomnography (PSG) and computed tomography (CT). The differences in, and relationships of, the PSG values and CT data between POSA and NPOSA were analyzed. RESULTS: Significant (p < 0...
2017: PeerJ
https://www.readbyqxmd.com/read/29042180/idiopathic-rem-sleep-behavior-disorder-in-the-elderly-spanish-community-a-primary-care-center-study-with-a-two-stage-design-using-video-polysomnography
#4
Montserrat Pujol, Jesús Pujol, Tomás Alonso, Araceli Fuentes, Mercè Pallerola, Jovita Freixenet, Ferran Barbé, Manel Salamero, Joan Santamaría, Alex Iranzo
OBJECTIVE: To examine the presence and characteristics of idiopathic REM sleep behavior disorder (IRBD) in a representative Caucasian sample from the elderly community of Lleida, Spain, attending primary care centers. METHODS: Participants were individuals aged 60 years or older who underwent routine visits in two primary care centers. They underwent a two-stage study; a validated screening single question for IRBD diagnosis (RBD1Q) followed by, in those who endorsed positive answer, clinical assessment by a neurologist plus video-polysomnography (V-PSG)...
August 24, 2017: Sleep Medicine
https://www.readbyqxmd.com/read/29041079/optimization-of-instrument-matrix-for-mueller-matrix-ellipsometry-based-on-partial-elements-analysis-of-the-mueller-matrix
#5
Xiaobo Li, Haofeng Hu, Lan Wu, Tiegen Liu
We consider the Mueller matrix ellipsometry (MME) measuring the ellipsometric parameters of the isotropic sample and the anisotropic sample under certain conditions in the presence of either Gaussian additive noise or Poisson shot noise. In this case, the ellipsometric parameters only relate to partial elements in Mueller matrix, and we optimize the instrument matrices of polarization state generator (PSG) and analyzer (PSA) to minimize the total measurement variance for these elements, in order to decrease the variance of the estimator of ellipsometric parameters...
August 7, 2017: Optics Express
https://www.readbyqxmd.com/read/29040758/linking-light-exposure-and-subsequent-sleep-a-field-polysomnography-study-in-humans
#6
Emma J Wams, Tom Woelders, Irene Marring, Laura van Rosmalen, Domien G M Beersma, Marijke C M Gordijn, Roelof A Hut
Study objectives: To determine the effect of light exposure on subsequent sleep characteristics under ambulatory field conditions. Methods: Twenty healthy participants were fitted with ambulatory PSG and wrist-actigraphs to assess light exposure, rest-activity, sleep quality, timing and architecture. Laboratory salivary dim-light melatonin onset (DLMO) was analyzed to determine endogenous circadian phase. Results: Later circadian clock phase was associated with lower intensity (R2=0...
October 11, 2017: Sleep
https://www.readbyqxmd.com/read/29038949/sleep-disorders-and-health-related-quality-of-life-in-patients-with-interstitial-lung-disease
#7
Maria Mavroudi, Despoina Papakosta, Theodore Kontakiotis, Kaliopi Domvri, George Kalamaras, Vasiliki Zarogoulidou, Paul Zarogoulidis, Paschalina Latka, Haidong Huang, Wolfgang Hohenforst-Schmidt, Konstantinos Zarogoulidis
BACKGROUND: Interstitial lung diseases (ILD) are chronic and restrictive lung diseases with poor survival and quality of life. The aim of this study was to investigate the frequency of sleep disorders in idiopathic pulmonary fibrosis (IPF) and sarcoidosis and to assess patients' quality of life in relation to these disorders. METHODS: Forty patients, 19 with IPF, and 21 with sarcoidosis stage II/III were included. They were compared with 15 healthy subjects. All patients performed all-night polysomnography (PSG) and completed the Epworth, Berlin, and Stop-Bang questionnaires...
October 16, 2017: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/29036480/treatment-of-obstructive-sleep-apnoea-hypopnea-syndrome-by-mandible-advanced-device-reduced-neuron-apoptosis-in-frontal-cortex-of-rabbits
#8
Hai-Yan Lu, Wen Wang, Zheng Zhou, Chun-Yan Liu, Ye Liu, Wei Xiao, Fu-Sheng Dong, Jie Wang
Objective: To investigate effects of mandible advanced device (MAD) therapy for obstructive sleep apnoea-hypopnea syndrome (OSAHS) on the neuron apoptosis and acetylcholine esterase activity in frontal cortex. Materials and methods: Thirty male New Zealand white rabbits were randomly divided into three groups (n = 10 in each group): group OSAHS, group MAD, and control group. Hydrophilic polyacrylamide gel was injected into soft palate of the animals to induce OSAHS in group OSAHS and group MAD...
September 23, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/29036082/binary-classification-of-mueller-matrix-images-from-an-optimization-of-poincar%C3%A3-coordinates
#9
Meredith K Kupinski, Jaden Bankhead, Adriana Stohn, Russell Chipman
A new binary classification method for Mueller matrix images is presented which optimizes the polarization state analyzer (PSA) and the polarization state generator (PSG) using a statistical divergence between pixel values in two regions of an image. This optimization generalizes to multiple PSA/PSG pairs so that the classification performance as a function of number of polarimetric measurements can be considered. Optimizing PSA/PSG pairs gives insight into which polarimetric measurements are most useful for the binary classification...
June 1, 2017: Journal of the Optical Society of America. A, Optics, Image Science, and Vision
https://www.readbyqxmd.com/read/29035709/heart-rate-variability-and-salivary-cortisol-in-very-preterm-children-during-school-age
#10
Natalie Urfer-Maurer, Sebastian Ludyga, Tobias Stalder, Serge Brand, Edith Holsboer-Trachsler, Markus Gerber, Alexander Grob, Peter Weber, Sakari Lemola
The autonomic nervous system (ANS) plays a major role in the human stress response and reflects physical and psychological adaptability to a changing environment. Long-term exposure to early life stressors may alter the function of the ANS. The present study examines differences in the ANS between children born very preterm and full-term as well as the association between the ANS and the hypothalamic-pituitary-adrenal (HPA) axis, the other main branch of the human stress system. Fifty-four healthy children born very preterm (<32nd gestational week) and 67 full-term children aged 7-12 years provided data for the present study...
October 5, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/29031750/the-urge-to-move-and-breathe-the-impact-of-obstructive-sleep-apnea-syndrome-treatment-in-patients-with-previously-diagnosed-clinically-significant-restless-legs-syndrome
#11
Cristiana Silva, Ana Rita Peralta, Carla Bentes
OBJECTIVE: The association between restless legs syndrome (RLS) and obstructive sleep apnea syndrome (OSAS) has seldom been reported. There is one study reporting improvement of RLS symptoms severity in patients naive of treatment after initiation of continuous positive airway pressure (CPAP) for OSAS. The aim of this study was to evaluate the impact of the OSAS treatment in patients with previously diagnosed, clinically significant RLS in a usual clinical setting. METHODS: This was a retrospective study of RLS patients from a sleep clinic with a concomitant or subsequent diagnosis of OSAS...
October 2017: Sleep Medicine
https://www.readbyqxmd.com/read/29031745/sleep-architecture-in-patients-with-juvenile-myoclonic-epilepsy
#12
Jaidaa F Mekky, Sonia M Elbhrawy, Mohamed F Boraey, Horeya M Omar
AIM: The aim is to analyze the sleep architecture using polysomnography (PSG) in patients with Juvenile Myoclonic Epilepsy (JME): (newly diagnosed and those on valproate drug) attending epilepsy clinic at Alexandria University Hospitals. METHODS: This study involved 20 patients with JME on valproate (age: 22.40 ± 5.80 years; M:F = 6:14), 20 newly diagnosed patients (age: 18.55 ± 6.0 years; M:F = 6:14), and 20 matched healthy controls (age: 22.10 ± 5...
October 2017: Sleep Medicine
https://www.readbyqxmd.com/read/29029313/subjective-objective-sleep-discrepancy-is-associated-with-alterations-in-regional-glucose-metabolism-in-patients-with-insomnia-and-good-sleeper-controls
#13
Daniel B Kay, Helmet T Karim, Adriane M Soehner, Brant P Hasler, Jeffrey A James, Anne Germain, Martica H Hall, Peter L Franzen, Julie C Price, Eric A Nofzinger, Daniel J Buysse
Objectives: Sleep discrepancies are common in primary insomnia (PI), and include reports of longer sleep onset latency (SOL) than measured by polysomnography (PSG), or "negative SOL discrepancy." We hypothesized that negative SOL discrepancy in PI would be associated with higher relative glucose metabolism during non-rapid eye movement (NREM) sleep in brain networks involved in conscious awareness, including the salience, left executive control, and default mode networks. Methods: PI (n=32) and good sleeper controls (GS; n=30) completed [ 18F]fluorodeoxyglucose positron emission tomography (FDG-PET) scans during NREM sleep and relative regional cerebral metabolic rate for glucose (rCMRglc) was measured...
October 3, 2017: Sleep
https://www.readbyqxmd.com/read/29029258/acupuncture-improves-peri-menopausal-insomnia-a-randomized-controlled-trial
#14
Fu Cong, Zhao Na, Liu Zhen, Yuan Lu-Hua, Xie Chen, Yang Wen-Jia, Yu Xin-Tong, Yu Huan, Chen Yun-Fei
Study Objective: To evaluate the short-term efficacy of acupuncture for the treatment of peri-menopausal insomnia (PMI). Methods: Design: A randomized, participant-blind, placebo-controlled trial consisted of the acupuncture group (n=38) and placebo-acupuncture group (n=38). Setting: A tertiary teaching and general hospital. Participants: 76 peri-menopausal women with insomnia disorder based on the International Classification of Sleep Disorders, third Edition. Interventions: A 10-session of acupuncture at bilateral Shenshu (BL 23) and Ganshu (BL 18) with unilateral Qimen (LR 14) and Jingmen (GB 25) or Streitberger needles at the same acupoints was performed for over 3 weeks...
September 22, 2017: Sleep
https://www.readbyqxmd.com/read/29027646/prevalence-of-obstructive-sleep-apnea-among-obese-toddlers-and-preschool-children
#15
Saadoun Bin-Hasan, Sherri Katz, Zoe Nugent, Joy Nehme, Zihang Lu, Abdullah Khayat, Suhail Al-Saleh, Reshma Amin, Indra Narang
BACKGROUND: Obstructive sleep apnea (OSA) is a common disorder estimated at 1-5% in the school-aged children. With the obesity prevalence reaching staggering rates globally, OSA in obese adolescents is estimated to be 4-5-folds higher than their lean peers. There is a paucity of data regarding obesity-related OSA in children 6 years and less. This is particularly relevant as OSA is associated with neurocognitive deficits. The aim of this study is to evaluate the prevalence of OSA among obese toddlers and preschool children and further to determine what other factors may be associated with the presence of OSA...
October 13, 2017: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/29022650/sleep-related-breathing-disorders-in-patients-with-prader-willi-syndrome-depending-on-the-period-of-growth-hormone-treatment
#16
Agnieszka Lecka-Ambroziak, Małgorzata Jędrzejczak, Marta Wysocka-Mincewicz, Mieczysław Szalecki
INTRODUCTION: Sleep-related breathing disorders (SRBD) are commonly present in patients with Prader-Willi syndrome (PWS). Recombinant human growth hormone (rhGH) treatment is reported to improve breathing function in PWS, but the findings are not explicit. MATERIAL AND METHODS: Screening polysomnography- polygraphy (PSG), assessing nasal respiratory flow, respiratory effort, and blood oxygen saturation, was used. Group 1 - before rhGH therapy (n = 11, mean age 3...
October 12, 2017: Endokrynologia Polska
https://www.readbyqxmd.com/read/28992830/perfectionism-and-polysomnography-determined-markers-of-poor-sleep
#17
Anna F Johann, Elisabeth Hertenstein, Simon D Kyle, Chiara Baglioni, Bernd Feige, Christoph Nissen, Dieter Riemann, Kai Spiegelhalder
STUDY OBJECTIVES: Perfectionism has been suggested to represent a predisposing factor for poor sleep. However, previous studies have relied on self-reported measures. The association between perfectionism and poor sleep measured by polysomnography (PSG) warrants further investigation. METHODS: The current retrospective exploratory study used the Frost Multidimensional Perfectionism Scale and PSG in an unselected sample of 334 consecutive sleep laboratory patients (140 males, 194 females, 44...
October 4, 2017: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/28992827/improving-sleep-quality-assessment-using-wearable-sensors-by-including-information-from-postural-sleep-position-changes-and-body-acceleration-a-comparison-of-chest-worn-sensors-wrist-actigraphy-and-polysomnography
#18
Javad Razjouyan, Hyoki Lee, Sairam Parthasarathy, Jane Mohler, Amir Sharafkhaneh, Bijan Najafi
STUDY OBJECTIVES: To improve sleep quality assessment using a single chest-worn sensor by extracting body acceleration and sleep position changes. METHODS: Sleep patterns of 21 participants (50.8 ± 12.8 years, 47.8% female) with self-reported sleep problems were simultaneously recorded using a chest sensor (Chest), an Actiwatch (Wrist), and polysomnography (PSG) during overnight sleep laboratory assessment. An algorithm for Chest was developed to detect sleep/wake epochs based on body acceleration and sleep position/postural changes data, which were then used to estimate sleep parameters of interest...
October 4, 2017: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/28990830/value-of-pulse-oximetry-watch-for-diagnosing-pediatric-obstructive-sleep-apnea-hypopnea-syndrome
#19
Jing-Ru Ma, Jing-Jing Huang, Qi Chen, Hai-Tao Wu, Kuan-Lin Xiao, Yu-Tian Zhang
OBJECTIVE: To evaluate the clinical value of pulse oximetry watch (POW) for diagnosing pediatric Obstructive sleep apnea/hypopnea syndrome (OSAHS). METHODS: We selected 32 children (boys: 25, 4-16 years old) who came to the hospital for diagnosing OSAHS from July to October 2016. Polysomnography (PSG) and POW were used simultaneously and recorded the apnea hypopnea index (AHI), LSpO2, and ODI4. Pearson analysis, t test, and receiver-operating characteristic (ROC) were used to analyze the correlation between PSG-AHI and other indicators, the diagnosis accordance rate, and the sensitivity and specificity of POW, respectively...
October 9, 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28990812/transjugular-intrahepatic-portosystemic-shunt-treatment-of-variceal-bleeding-in-an-unselected-patient-population
#20
K Rosenqvist, R Sheikhi, R Nyman, F Rorsman, P Sangfelt, C Ebeling Barbier
OBJECTIVE: To evaluate transjugular intrahepatic portosystemic shunt (TIPS) in variceal bleeding in a clinical setting. MATERIALS AND METHODS: Retrospective review of 131 patients (116 with liver cirrhosis) treated with TIPS with covered stent grafts in a single centre from 2002 to 2016. RESULTS: Survival at 1 and 2 years was 70% and 57% in patents with, and 100% at 2 years in patients without liver cirrhosis, respectively. A high Child-Pugh score and severe hepatic encephalopathy (HE) within 12 months post-TIPS were related to increased mortality...
October 9, 2017: Scandinavian Journal of Gastroenterology
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