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https://www.readbyqxmd.com/read/28937796/delay-of-lung-adenocarcinoma-lac-1-development-in-mice-by-dietary-oleic-acid
#1
Mariana Piegari, Elio A Soria, Aldo R Eynard, Mirta A Valentich
Lung cancer is the leading cause of death by cancer, and is a major sanitary concern worldwide. Some nutrients, such as ω-9 fatty acids, have been proposed as anticancer agents. Thus, an olein-enriched diet was assayed in a murine model of lung adenocarcinoma (LAC-1) to evaluate neoplastic and paraneoplastic evolution in BALB/c mice. The organic assimilation of dietary fatty acids was confirmed in liver by gas chromatography. This experimental oleic acid-containing diet increased animal survival and tumour latency (analysed by the Kaplan-Meier method), improving neoplastic evolution and general status, with weak effects on the paraneoplastic syndrome (thymus atrophy, splenomegaly, splenocyte response to mitogen, blood anaemia, and leucocytosis)...
September 22, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/28937632/design-and-analysis-of-a-low-latency-deterministic-network-mac-for-wireless-sensor-networks
#2
Prasan Kumar Sahoo, Sudhir Ranjan Pattanaik, Shih-Lin Wu
The IEEE 802.15.4e standard has four different superframe structures for different applications. Use of a low latency deterministic network (LLDN) superframe for the wireless sensor network is one of them, which can operate in a star topology. In this paper, a new channel access mechanism for IEEE 802.15.4e-based LLDN shared slots is proposed, and analytical models are designed based on this channel access mechanism. A prediction model is designed to estimate the possible number of retransmission slots based on the number of failed transmissions...
September 22, 2017: Sensors
https://www.readbyqxmd.com/read/28937572/obstetric-care-consensus-no-6-periviable-birth
#3
(no author information available yet)
Approximately 0.5% of all births occur before the third trimester of pregnancy, and these very early deliveries result in the majority of neonatal deaths and more than 40% of infant deaths. A recent executive summary of proceedings from a joint workshop defined periviable birth as delivery occurring from 20 0/7 weeks to 25 6/7 weeks of gestation. When delivery is anticipated near the limit of viability, families and health care teams are faced with complex and ethically challenging decisions. Multiple factors have been found to be associated with short-term and long-term outcomes of periviable births in addition to gestational age at birth...
October 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28937567/obstetric-care-consensus-no-6-summary-periviable-birth
#4
(no author information available yet)
Approximately 0.5% of all births occur before the third trimester of pregnancy, and these very early deliveries result in the majority of neonatal deaths and more than 40% of infant deaths. A recent executive summary of proceedings from a joint workshop defined periviable birth as delivery occurring from 20 0/7 weeks to 25 6/7 weeks of gestation. When delivery is anticipated near the limit of viability, families and health care teams are faced with complex and ethically challenging decisions. Multiple factors have been found to be associated with short-term and long-term outcomes of periviable births in addition to gestational age at birth...
October 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28937043/inhibition-of-cd38-cyclic-adp-ribose-pathway-protects-rats-against-ropivacaine-induced-convulsion
#5
Yu Zou, Xin He, Qian-Yi Peng, Qu-Lian Guo
BACKGROUND: The CD38/cyclic ADP-ribose (cADPR) pathway plays a role in various central nervous system diseases and in morphine tolerance, but its role in local anesthetic intoxication is unknown. The aim of this study was to determine the role of the CD38/cADPR pathway in ropivacaine-induced convulsion. METHODS: Forty male Sprague-Dawley rats were randomly divided into five groups (n = 8 per group): sham group, ropivacaine group, ropivacaine+8-Br-cADPR (5 nmol) group, ropivacaine+8-Br-cADPR (10 nmol) group, and ropivacaine+8-Br-cADPR (20 nmol) group (no rats died)...
October 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28936997/influence-of-age-and-gender-on-the-function-of-postganglionic-sympathetic-sudomotor-axons
#6
Kedar Mal, Hulegar A Abhishekh, Mahavir Prasad Chawla, Trichur R Raju, Talakad N Sathyaprabha
BACKGROUND: The quantitative sudomotor axon reflex test (QSART) is an autonomic function test to evaluate the function of postganglionic sympathetic sudomotor axons. The QSART is used for research and in clinical assessment of various neurological diseases, but few studies have assessed the influence of age, gender and reported a normative range. We assessed the influence of age and gender on QSART parameters. METHODS: We recruited 61 healthy volunteers (41 men and 20 women) after obtaining written informed consent...
May 2017: National Medical Journal of India
https://www.readbyqxmd.com/read/28936902/maternal-obesity-is-associated-with-chorioamnionitis-and-earlier-indicated-preterm-delivery-among-expectantly-managed-women-with-preterm-premature-rupture-of-membranes
#7
Emily E Hadley, Andrea Discacciati, Maged M Costantine, Mary B Munn, Luis D Pacheco, George R Saade, Giuseppe Chiossi
OBJECTIVE: To determine the association between maternal obesity and delivery due to chorioamnionitis prior to labor onset, among expectantly managed women with preterm premature rupture of membranes (pPROM). METHODS: This was a secondary analysis of a multicenter randomized trial of magnesium sulfate versus placebo to prevent cerebral palsy or death among offspring of women with anticipated delivery at 24-31-week gestation. After univariable analysis, Cox proportional hazard evaluated the association between maternal obesity and chorioamnionitis, while Laplace regression investigated how obesity affects the gestational age at delivery of the first 20% of women developing the outcome of interest...
September 22, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28936748/quantity-and-quality-of-sweating-in-atopic-dermatitis
#8
Marlies Wruhs, Andreas Gleiß, Andreas Steiner, Paul Sator
Sweat may be an important factor in triggering an exacerbation of atopic dermatitis. It was the aim of this study to evaluate a possible correlation between atopic patients and hyperhidrosis-measured by a questionnaire-and to find out whether there are qualitative differences in sweat response-measured by sudomotor activity (sympathetic skin response test, SSR). Included were 100 study participants, of whom 50 were patients with atopic dermatitis and 50 were serving as control group. The frequency of hyperhidrosis is higher in atopic patients than in the control group (30 vs...
September 21, 2017: Archives of Dermatological Research
https://www.readbyqxmd.com/read/28936127/developmental-differences-in-infants-attention-to-social-and-nonsocial-threats
#9
Vanessa LoBue, Kristin A Buss, Bradley C Taber-Thomas, Koraly Pérez-Edgar
Research has demonstrated that humans detect threatening stimuli more rapidly than nonthreatening stimuli. Although the literature presumes that biases for threat should be normative, present early in development, evident across multiple forms of threat, and stable across individuals, developmental work in this area is limited. Here, we examine the developmental differences in infants' (4- to 24-month-olds) attention to social (angry faces) and nonsocial (snakes) threats using a new age-appropriate dot-probe task...
May 2017: Infancy: the Official Journal of the International Society on Infant Studies
https://www.readbyqxmd.com/read/28936077/normative-data-for-median-nerve-conduction-in-healthy-young-adults-from-punjab-india
#10
Manjinder Singh, Sharat Gupta, Kamal Dev Singh, Avnish Kumar
BACKGROUND: Nerve conduction studies (NCSs) are essential for diagnosing various kinds of focal and diffuse neuropathies. Due to the paucity of local NCS data, electrodiagnostic laboratories in Punjab rely on values from Western and other Indian studies. AIM: This study was conducted to provide normative data for median nerve conduction parameters (motor and sensory) in Punjabi populace. MATERIALS AND METHODS: A cross-sectional study was done on 290 participants (150 males and 140 females), aged 17-21 years, as per standardized protocol...
August 2017: Journal of Neurosciences in Rural Practice
https://www.readbyqxmd.com/read/28935968/electrophysiological-studies-in-thyroid-associated-orbitopathy-a-systematic-review
#11
Tiara W U Iao, Shi Song Rong, An Ni Ling, Mårten E Brelén, Alvin Lerrmann Young, Kelvin K L Chong
Dysthyroid optic neuropathy (DON) is the commonest cause of blindness in thyroid associated orbitopathy (TAO). While diagnosis remains clinical, objective tests for eyes with early or equivocal findings are lacking. Various electrophysiological studies (EPS) have been reported, yet the types and parameters useful for DON remain inconclusive. We performed a systematic literature search in MEDLINE, EMBASE and the Cochrane databases via the OVID platform up to August 20, 2017. 437 records were identified for screening and 16 original studies (1327 eyes, 787 patients) were eligible for review...
September 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28935824/effects-of-expiratory-muscle-activation-via-high-frequency-spinal-cord-stimulation
#12
Krzysztof E Kowalski, Jaroslaw Richard Romaniuk, Tomasz Kowalski, Anthony F DiMarco
In persons with spinal cord injury, lower thoracic low frequency spinal cord stimulation (LF-SCS, 50Hz,15mA) is a useful method to restore an effective cough. Unfortunately, the high stimulus amplitude requirements and potential activation of pain fibers significantly limits this application in persons with intact sensation. In this study, the mechanism of the expiratory muscle activation, via high frequency SCS (HF-SCS;500Hz,1mA) was evaluated in dogs. In group one, the effects of electrode placement on airway pressure generation (P) was evaluated...
September 21, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28935683/synaptic-activation-of-putative-sensory-neurons-by-hexamethonium-sensitive-nerve-pathways-in-mouse-colon
#13
Timothy James Hibberd, Lee Travis, Lukasz Wiklendt, Marcello C Costa, Simon J H Brookes, Hongzhen Hu, Damien John Keating, Nick J Spencer
The gastrointestinal tract contains its own independent population of sensory neurons within the gut wall. These sensory neurons have been referred to as intrinsic primary afferent neurons (IPANs) and can be identified by immunoreactivity to calcitonin gene related peptide (CGRP) in mice. A common feature of IPANs is a paucity of fast synaptic inputs observed during sharp microelectrode recordings. Whether this is observed using different recording techniques is of particular interest for understanding the physiology of these neurons and neural circuit modelling...
September 21, 2017: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/28934723/neural-mechanisms-underlying-the-disruption-of-male-courtship-behavior-by-adult-exposure-to-di-2-ethylhexyl-phthalate-in-mice
#14
Carlos Dombret, Daphné Capela, Kevin Poissenot, Caroline Parmentier, Emma Bergsten, Cédric Pionneau, Solenne Chardonnet, Hélène Hardin-Pouzet, Valérie Grange-Messent, Matthieu Keller, Isabelle Franceschini, Sakina Mhaouty-Kodja
BACKGROUND: Courtship behavior plays a critical role in attracting females and reproduction success. However, the effects of exposure to a ubiquitous contaminant di(2-ethylhexyl) phthalate (DEHP) on these behaviors and, in particular, on courtship vocalizations have not been examined. OBJECTIVE: The effects of adult exposure to DEHP on courtship and mating behaviors and gonadotropic axis and neural mechanisms involved in DEHP-induced effects were analyzed in male mice...
September 1, 2017: Environmental Health Perspectives
https://www.readbyqxmd.com/read/28934525/short-daytime-naps-briefly-attenuate-objectively-measured-sleepiness-under-chronic-sleep-restriction
#15
Jared M Saletin, Cassie J Hilditch, William C Dement, Mary A Carskadon
Study Objectives: Napping is a useful countermeasure to the negative effects of acute sleep loss on alertness. The efficacy of naps to recover from chronic sleep loss is less well understood. Methods: Following 2 baseline nights (10 hours' time-in-bed), participants were restricted to 7 nights of 5-hour sleep opportunity. Ten adults participated in the No-Nap condition, and a further 9 were assigned to a Nap condition with a daily 45-minute nap opportunity at 1300 h...
September 1, 2017: Sleep
https://www.readbyqxmd.com/read/28934430/epstein-barr-virus-type-2-infects-t-cells-in-healthy-kenyan-children
#16
Carrie B Coleman, Ibrahim I Daud, Sidney O Ogolla, Julie A Ritchie, Nicholas A Smith, Peter O Sumba, Arlene E Dent, Rosemary Rochford
Background: The 2 strains of Epstein-Barr virus (EBV), EBV type 1 (EBV-1) and EBV-2, differ in latency genes, suggesting that they use distinct mechanisms to establish latency. We previously reported that EBV-2 infects T cells in vitro. In this study, we tested the possibility that EBV-2 infects T cells in vivo. Methods: Purified T-cell fractions isolated from children positive for EBV-1 or EBV-2 and their mothers were examined for the presence of EBV and for EBV type...
September 15, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28934369/in-vivo-activation-of-latent-hiv-with-a-synthetic-bryostatin-analog-effects-both-latent-cell-kick-and-kill-in-strategy-for-virus-eradication
#17
Matthew D Marsden, Brian A Loy, Xiaomeng Wu, Christina M Ramirez, Adam J Schrier, Danielle Murray, Akira Shimizu, Steven M Ryckbosch, Katherine E Near, Tae-Wook Chun, Paul A Wender, Jerome A Zack
The ability of HIV to establish a long-lived latent infection within resting CD4+ T cells leads to persistence and episodic resupply of the virus in patients treated with antiretroviral therapy (ART), thereby preventing eradication of the disease. Protein kinase C (PKC) modulators such as bryostatin 1 can activate these latently infected cells, potentially leading to their elimination by virus-mediated cytopathic effects, the host's immune response and/or therapeutic strategies targeting cells actively expressing virus...
September 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28934151/natural-history-of-hpv-infection-across-the-lifespan-role-of-viral-latency
#18
REVIEW
Patti E Gravitt, Rachel L Winer
Large-scale epidemiologic studies have been invaluable for elaboration of the causal relationship between persistent detection of genital human papillomavirus (HPV) infection and the development of invasive cervical cancer. However, these studies provide limited data to adequately inform models of the individual-level natural history of HPV infection over the course of a lifetime, and particularly ignore the biological distinction between HPV-negative tests and lack of infection (i.e., the possibility of latent, undetectable HPV infection)...
September 21, 2017: Viruses
https://www.readbyqxmd.com/read/28933907/generating-lies-produces-lower-memory-predictions-and-higher-memory-performance-than-telling-the-truth-evidence-for-a-metacognitive-illusion
#19
Miri Besken
Manipulations that induce disfluency during encoding generally produce lower memory predictions for the disfluent condition than for the fluent condition. Similar to other manipulations of disfluency, generating lies takes longer and requires more mental effort than does telling the truth; hence, a manipulation of lie generation might produce patterns similar to other types of fluency for memory predictions. The current study systematically investigates the effect of a lie-generation manipulation on both actual and predicted memory performance...
September 21, 2017: Journal of Experimental Psychology. Learning, Memory, and Cognition
https://www.readbyqxmd.com/read/28932776/reactive-and-anticipatory-looking-in-6-month-old-infants-during-a-visual-expectation-paradigm
#20
Jeffry Quan, Jean-François Bureau, Adam B Abdul Malik, Johnny Wong, Anne Rifkin-Graboi
This article presents data from 278 six-month-old infants who completed a visual expectation paradigm in which audiovisual stimuli were first presented randomly (random phase), and then in a spatial pattern (pattern phase). Infants' eye gaze behaviour was tracked with a 60 Hz Tobii eye-tracker in order to measure two types of looking behaviour: reactive looking (i.e., latency to shift eye gaze in reaction to the appearance of stimuli) and anticipatory looking (i.e., percentage of time spent looking at the location where the next stimulus is about to appear during the inter-stimulus interval)...
October 2017: Data in Brief
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