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https://www.readbyqxmd.com/read/29782943/effects-of-d-amphetamine-on-risk-choice-in-rats-depend-on-the-manner-in-which-the-expected-reward-value-is-varied
#1
Jen-Hau Yang, Chung-Ping Cheng, Ruey-Ming Liao
Decision making related to risks and rewards has been studied in the rodent by using several behavioral tests including the use of probability discounting tasks. However, it still remains unclear how long-term values and the different levels of risk are involved in decisions with reward uncertainty. In this study, we used a T-maze choice task to investigate the role of expected reward values in decision making under risk in the rat. The task was specifically set up to run with the expected value (EV) being equal to 1 between binary choice options (small-and-certain vs...
May 18, 2018: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/29782289/-the-effect-of-changing-of-conventional-antihypertensive-therapy-to-a-triple-fixed-combination-therapy-with-rosuvastatin-in-high-cardiovascular-risk-patients
#2
F T Ageev, Z N Blankova, N S Samsonova
BACKGROUND: The low efficiency of recommended therapy for reducing cardiovascular risk (CV) in patients with arterial hypertension even with an effective blood pressure decrease is often due to the persistence of high blood cholesterol and arterial stiffness. Among the effective ways to achieve the goal of therapy is considered the changing to a single-pill combinations (SPCs) of two antihypertensive drugs and statin. AIM: To assess influence of fixed combination consisted of amlodipine, lisinopril and rosuvastatin to the dynamic of lipid spectrum, blood pressure level and elastic properties of arteries in patients with arterial hypertension and high risk of cardio-vascular complications being transferred from their preceding antihypertensive therapy...
2018: Kardiologiia
https://www.readbyqxmd.com/read/29782268/-lipid-blood-profile-in-old-patients-with-ischemic-heart-disease
#3
S V Topolyanskaya, O N Vakulenko, T A Eliseeva, N A Balyasnikova, G A Kalinin, L M Kupina, N V Strizhova
PURPOSE: to assess prevalence of dyslipidemia in patients with ischemic heart disease (IHD) older than 75 years as well as to evaluate possible associations between serum lipids and various cardiovascular and other diseases in these patients. METHODS: We enrolled in this cross sectional study 555 hospitalized IHD patients aged 75-98 years (mean age 86.8 years, 74.5 % women). Levels of lipids (total cholesterol [TC], triglycerides [TG], low and high-density lipoprotein cholesterol [LDLC, HDLC]) were measured by enzyme method on the biochemistry analyzer Konelab 60i...
March 2018: Kardiologiia
https://www.readbyqxmd.com/read/29782201/positional-and-dimensional-temporomandibular-joint-changes-after-correction-of-posterior-crossbite-in-growing-patients-a-systematic-review
#4
Mohamed T Ellabban, Ahmed I Abdul-Aziz, Mona M Salah Fayed, Mai H AboulFotouh, Ehab S Elkattan, Mushira M Dahaba
OBJECTIVE: To elucidate the positional and dimensional temporomandibular joint (TMJ) changes after correction of posterior crossbite in growing patients. MATERIALS AND METHODS: A systematic unrestricted search was done in six databases until June 27, 2017. A manual search in the reference lists of the included studies and gray literature was also performed. The eligibility criteria included randomized controlled trials and prospective nonrandomized controlled clinical trials and a sample of growing subjects with posterior crossbite that required maxillary expansion...
May 22, 2018: Angle Orthodontist
https://www.readbyqxmd.com/read/29782175/synthetic-insights-into-surface-functionalization-of-si-111-r-photoelectrodes-steric-control-and-deprotection-of-molecular-passivating-layers
#5
Ryan T Pekarek, Hugo Celio, Michael J Rose
We report the utility of controlled spacing of molecular monolayers on Si(111) surfaces by the use of sterically bulky silanes. The steric bulk of a 3,5-diphenolic linker of type Ph-diO-SiR3 (R = hexyl, phenyl, i Pr)-as well as the smaller Ph-diOMe-is shown to control the surface coverage on Si(111). The para substituent was also changed from -F (small) to -OTf (triflate, large) to modulate the conformation of a selected bulky silane (SiR3 ; R = hexyl) to further control the steric environment of the monolayer...
May 21, 2018: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/29782058/familial-aggregation-of-major-depressive-disorder-in-an-african-american-community
#6
Eleanor Murphy, James E Gangwisch, Janet T Matsunaga, Ruth Ottman
BACKGROUND: African Americans (AAs) with major depressive disorder (MDD) experience more impairment and poorer treatment outcomes relative to Whites, yet are underrepresented in family studies of MDD. This is the first study to investigate the familial aggregation of major depression among AAs. METHODS: Participants' reports of depression from clinical and family history (FH) interviews were used to examine depression rates among 435 first-degree relatives and half-siblings of 63 depressed cases and 222 relatives of 33 nondepressed controls...
May 21, 2018: Depression and Anxiety
https://www.readbyqxmd.com/read/29781883/cytomegalovirus-specific-cd4-t-cell-responses-and-cmv-igg-levels-are-associated-with-neurocognitive-impairment-in-people-living-with-hiv
#7
Susanne Dam Nielsen, Vibe Ballegaard, Karin Kaereby Pedersen, Maria Pedersen, Peter Brændstrup, Nikolai Kirkby, Anette Stryhn Buus, Lars P Ryder, Jan Gerstoft
BACKGROUND: Mechanisms leading to neurocognitive impairment (NCI) in people living with HIV (PLWHIV) on stable antiretroviral therapy (cART) remain unknown. We investigated the association between CMV immunity, HIV-specific variables and NCI in PLWHIV on stable cART and with low comorbidity. METHODS: 52 PLWHIV on stable cART and 31 HIV-uninfected controls matched on age, gender, education and comorbidity were tested with a neurocognitive test-battery and CMV-immunoglobulin G (CMV-IgG) levels were measured...
May 16, 2018: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/29781815/lymph-node-fibrosis-a-structural-barrier-to-unleashing-effective-vaccine-immunity
#8
Boris Julg, Galit Alter
There is marked variability in vaccine efficacy among global populations. In particular, individuals in low- to middle-income countries have been shown to be less responsive to vaccines than those from developed nations. Several factors, including endemic infections, nutrition, genetics, and gut microbiome composition, have been proposed to underlie discrepancies in vaccine response. In this issue of the JCI, Kityo et al. evaluated response to yellow fever virus vaccine, inflammation, and lymphatic tissue architecture and fibrosis in three cohorts: two from the U...
May 21, 2018: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29781805/hot-electron-cooling-in-dirac-semimetal-cd-sub-3-sub-as-sub-2-sub-due-to-polar-optical-phonons
#9
Shrishail S Kubakaddi, Tutul Biswas
A theory of hot electron cooling power due to polar optical phonons $P_{\rm op}$ is developed in
 three-dimensional Dirac semimetal($3$DDS) Cd$_3$As$_2$ taking account of hot phonon effect. Hot phonon
 distribution $N_q$ and $P_{\rm op}$ are investigated as a function of electron temperature $T_e$,
 electron density $n_e$, and phonon relaxation time $\tau_p$. It is found that $P_{\rm op}$ increases
 rapidly (slowly) with $T_e$ at lower (higher) temperature regime.
 Whereas, $P_{\rm op}$ is weakly decreasing with increasing $n_e$...
May 21, 2018: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/29781610/sulfur-speciation-in-biochars-by-very-high-resolution-benchtop-k%C3%AE-x-ray-emission-spectroscopy
#10
William Holden, Gerald T Seidler, Singfoong Cheah
The analytical chemistry of sulfur-containing materials poses substantial technical challenges, especially due to the limitations of 33S NMR and the time-intensive preparations required for wet-chemistry analyses. A number of prior studies have found that synchrotron-based x-ray absorption near edge structure (XANES) measurements can give detailed speciation of sulfur chemistry in such cases. However, due to the obvious access limitations, synchrotron XANES of sulfur cannot be part of routine analytical practice across the chemical sciences community...
May 21, 2018: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/29781558/characteristics-of-high-and-low-risk-individuals-in-the-priority-study-urinary-proteomics-and-mineralocorticoid-receptor-antagonism-for-prevention-of-diabetic-nephropathy-in-type-2-diabetes
#11
N Tofte, M Lindhardt, K Adamova, J Beige, J W J Beulens, A L Birkenfeld, G Currie, C Delles, I Dimos, L Francová, M Frimodt-Møller, P Girman, R Göke, T Havrdova, A Kooy, H Mischak, G Navis, G Nijpels, M Noutsou, A Ortiz, A Parvanova, F Persson, P L Ruggenenti, F Rutters, I Rychlík, G Spasovski, M Speeckaert, M Trillini, H von der Leyen, P Rossing
AIM: To compare clinical baseline data in individuals with Type 2 diabetes and normoalbuminuria, who are at high or low risk of diabetic kidney disease based on the urinary proteomics classifier CKD273. METHODS: We conducted a prospective, randomized, double-blind, placebo-controlled international multicentre clinical trial and observational study in participants with Type 2 diabetes and normoalbuminuria, stratified into high- or low-risk groups based on CKD273 score...
May 21, 2018: Diabetic Medicine: a Journal of the British Diabetic Association
https://www.readbyqxmd.com/read/29781510/tramadol-opioid-abuse-is-associated-with-a-dose-and-time-dependent-poor-sperm-quality-and-hyperprolactinaemia-in-young-men
#12
A G A Farag, M A Basha, S A Amin, N F Elnaidany, N G Elhelbawy, M M T Mostafa, S A Khodier, R A Ibrahem, R Z Mahfouz
Tramadol, one of the most commonly abused drugs in Middle East, impacts spermatogenesis and disturbs reproductive hormones in animal studies. We aimed to investigate tramadol impact on sperm quality and on levels of testosterone, prolactin and gonadotropins, in tramadol abusers (n = 30) to age-matched control (n = 30). Abusers had significantly low percentages of sperm motility, normal forms and vitality compared with control (95% CI -40.7 to -19.3, -13.5 to -9.3 and -31.9 to -9.7 respectively). Hypoandrogenism (95% CI -4...
May 21, 2018: Andrologia
https://www.readbyqxmd.com/read/29781477/methyl-rotation-dynamics-in-metal-organic-frameworks-probed-with-terahertz-spectroscopy
#13
Qi Li, Adam J Zaczek, Timothy M Korter, J Axel Zeitler, Michael T Ruggiero
In ZIF-8 and its cobalt analogue ZIF-67, the imidazolate methyl-groups, which point directly into the void space, have been shown to freely rotate - even down to cryogenic temperatures. Using a combination of experimental terahertz time-domain spectroscopy, low-frequency Raman spectroscopy, and state-of-the-art ab initio simulations, the methyl-rotor dynamics in ZIF-8 and ZIF-67 are fully characterized within the context of a quantum-mechanical hindered-rotor model. The results lend insight into the fundamental origins of the experimentally observed methyl-rotor dynamics, and provide valuable insight into the nature of the weak interactions present within this important class of materials...
May 21, 2018: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/29781227/body-mass-index-standard-deviation-score-and-obesity-in-children-with-type-1-diabetes-in-the-nordic-countries-hba-1c-and-other-predictors-of-increasing-bmisds
#14
N H Birkebaek, J Kahlert, R Bjarnason, A K Drivvoll, A Johansen, E Konradsdottir, A Pundziute-Lyckå, U Samuelsson, T Skrivarhaug, J Svensson
BACKGROUND: Intensified insulin therapy may increase body weight and cause obesity. This study compared body mass index standard deviation score (BMISDS) and obesity rate in children with type 1 diabetes (T1D) in Denmark, Iceland, Norway and Sweden, and uncovered predictors for increasing BMISDS. METHODS: Data registered in the Nordic national childhood diabetes databases during the period 2008-2012 on children below 15 years with T1D for more than three months were compiled, including information on gender, age, diabetes duration, HbA1c , insulin dose, severe hypoglycemia (SH), treatment modality, height and weight...
May 21, 2018: Pediatric Diabetes
https://www.readbyqxmd.com/read/29781126/versatile-nanostructures-from-rice-husk-biomass-for-energy-applications
#15
Zhaofeng Wang, Andrew T Smith, Weixing Wang, Luyi Sun
Converting biomass into valuable products has great benefits in terms of both economy and environment, which has attracted considerable attention in recent years. The mass generation of rice husks (RHs) as well as their rich and unique chemical components enable them to be one of the most widely investigated biomasses. RH biomass was initially utilized to produce bulk materials for conventional applications, while a variety of advanced nanostructures (NSs) have been fabricated during the past few years. In addition to their low-cost and environmentally friendly nature, the RH derived NSs (RH-NSs) exhibit versatile properties, promising for broad applications in various fields...
May 20, 2018: Angewandte Chemie
https://www.readbyqxmd.com/read/29781118/ballistic-tongue-projection-in-a-miniaturized-salamander
#16
Stephen M Deban, Segall V Bloom
Miniaturization of body size is often accompanied by peculiarities in morphology that can have functional consequences. We examined the feeding behavior and morphology of the miniaturized plethodontid salamander Thorius, one of the smallest vertebrates, to determine if its performance and biomechanics differ from those of its larger relatives. High-speed imaging and dynamics analysis of feeding at a range of temperatures show that tongue projection in Thorius macdougalli is ballistic and achieves accelerations of up to 600 G with low thermal sensitivity, indicating that tongue projection is powered by an elastic-recoil mechanism...
May 20, 2018: Journal of Experimental Zoology. Part A, Ecological and Integrative Physiology
https://www.readbyqxmd.com/read/29780865/elevated-medial-temporal-lobe-and-pervasive-brain-tau-pet-signal-in-normal-participants
#17
Val J Lowe, Tyler J Bruinsma, Hoon-Ki Min, Emily S Lundt, Ping Fang, Matthew L Senjem, Bradley F Boeve, Keith A Josephs, Mukesh K Pandey, Melissa E Murray, Kejal Kantarci, David T Jones, Christopher G Schwarz, David S Knopman, Ronald C Petersen, Clifford R Jack
Introduction: Medial temporal lobe (MTL) uptake on tau-positron emission tomography (PET) is seen not only in Alzheimer's disease (AD) dementia but also in the aging population. The relationship of these findings to the development of AD dementia needs to be better understood. Methods: Tau-PET with AV-1451 was performed on 576 cognitively unimpaired (CU) participants aged 50-94 years. The number of CUs with and without abnormal MTL regions and those with or without extra-MTL abnormalities was determined...
2018: Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring
https://www.readbyqxmd.com/read/29780812/characteristics-of-mobile-phone-access-and-usage-in-rural-and-urban-guatemala-assessing-feasibility-of-text-message-reminders-to-increase-childhood-immunizations
#18
Gretchen J Domek, Ingrid L Contreras-Roldan, Edwin J Asturias, Michael Bronsert, Guillermo Antonio Bolaños Ventura, Sean T O'Leary, Allison Kempe, Sheana Bull
Background: Despite efforts to promote vaccination in low- and middle-income countries (LMICs), over 20 million infants remain under-immunized and at risk for unnecessary morbidity and mortality. Mobile health technologies, such as Short Message Service (SMS) texts, have tremendous and untapped potential for disease management. Patient reminder systems are an important mechanism for improving childhood vaccination coverage and can be easily adapted to SMS platforms. However, current research lacks an understanding of the barriers and facilitators to mHealth program design, implementation, and scale in LMICs...
2018: MHealth
https://www.readbyqxmd.com/read/29780584/opening-the-black-box-of-spring-water-microbiology-from-alpine-karst-aquifers-to-support-proactive-drinking-water-resource-management
#19
REVIEW
Domenico Savio, Philipp Stadler, Georg H Reischer, Alexander K T Kirschner, Katalin Demeter, Rita Linke, Alfred P Blaschke, Regina Sommer, Ulrich Szewzyk, Inés C Wilhartitz, Robert L Mach, Hermann Stadler, Andreas H Farnleitner
Over the past 15 years, pioneering interdisciplinary research has been performed on the microbiology of hydrogeologically well-defined alpine karst springs located in the Northern Calcareous Alps (NCA) of Austria. This article gives an overview on these activities and links them to other relevant research. Results from the NCA springs and comparable sites revealed that spring water harbors abundant natural microbial communities even in aquifers with high water residence times and the absence of immediate surface influence...
May 2018: WIREs. Water
https://www.readbyqxmd.com/read/29780453/-cis-oxoruthenium-complexes-supported-by-chiral-tetradentate-amine-n-4-ligands-for-hydrocarbon-oxidations
#20
Chun-Wai Tse, Yungen Liu, Toby Wai-Shan Chow, Chaoqun Ma, Wing-Ping Yip, Xiao-Yong Chang, Kam-Hung Low, Jie-Sheng Huang, Chi-Ming Che
We report the first examples of ruthenium complexes cis -[(N4 )RuIII Cl2 ]+ and cis -[(N4 )RuII (OH2 )2 ]2+ supported by chiral tetradentate amine ligands (N4 ), together with a high-valent cis -dioxo complex cis -[(N4 )RuVI (O)2 ]2+ supported by the chiral N4 ligand mcp (mcp = N , N '-dimethyl- N , N '-bis(pyridin-2-ylmethyl)cyclohexane-1,2-diamine). The X-ray crystal structures of cis -[(mcp)RuIII Cl2 ](ClO4 ) ( 1a ), cis -[(Me2 mcp)RuIII Cl2 ]ClO4 ( 2a ) and cis -[(pdp)RuIII Cl2 ](ClO4 ) ( 3a ) (Me2 mcp = N , N '-dimethyl- N , N '-bis((6-methylpyridin-2-yl)methyl)cyclohexane-1,2-diamine, pdp = 1,1'-bis(pyridin-2-ylmethyl)-2,2'-bipyrrolidine)) show that the ligands coordinate to the ruthenium centre in a cis -α configuration...
March 14, 2018: Chemical Science
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