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https://www.readbyqxmd.com/read/28109047/novel-antiplatelet-role-for-a-protein-disulfide-isomerase-targeted-peptide-evidence-of-covalent-binding-to-c-terminal-cghc-redox-motif
#1
H R Sousa, R S Gaspar, E M L Sena, S A da Silva, J L de L Fontelles, T L S Araújo, M Mastrogiovanni, D M Fries, A P S Azevedo-Santos, F R M Laurindo, A Trostchansky, A M Paes
Protein disulfide isomerase (PDI) plays a major role in platelet aggregation and its inhibitors have emerged as novel antithrombotic drugs. In previous work, we designed a peptide based on PDI redox motif (CGHC) that inhibited both PDI reductase activity and PDI-modulated superoxide generation by neutrophil Nox2. Thus, we hypothesized this peptide would also inhibit platelet aggregation by association to surface PDI. Three peptides were used: CxxC, containing the PDI redox motif; Scr, presenting a scrambled sequence of the same residues and AxxA, with cysteines replaced by alanine...
January 21, 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28109018/gonad-histology-and-serum-11-kt-profile-during-the-annual-reproductive-cycle-in-sterlet-sturgeon-adult-males-acipenser-ruthenus
#2
A Golpour, C Broquard, S Milla, H Dadras, A R Baloch, T Saito, M Pšenička
The aim of this study was to assess monthly testicular development in the cultured breeding stock of sterlet, Acipenser ruthenus, using histological and serum sex steroid changes. Testicular development in the adult male was examined monthly and showed four distinct phases including resting, pre-spawning, spawning and post-spawning. Also, seasonal changes of the testes were described according to its variations in gonadosomatic index (GSI) during different phases of testicular development. Using histology, we identified continuous spermatogenesis and asynchronous gonad development pattern in the testes of male sterlet, which shows that regulation of annual gonadal cycle is influenced by season...
January 21, 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/28108984/a-proximal-straining-mesh-location-is-associated-with-de-novo-stress-urinary-incontinence-after-transobturator-mesh-procedures
#3
Wen-Chen Huang, Jenn-Ming Yang
OBJECTIVES: The purpose of this study was to explore the association between mesh location and de novo stress urinary incontinence (SUI) after transvaginal mesh procedures. METHODS: We retrospectively analyzed a database of women who had received transvaginal mesh procedures for stage III or greater cystocele according to the Pelvic Organ Prolapse Quantification system. Only data for women who neither reported SUI preoperatively nor had received concomitant anti-incontinence surgery were included for analyses...
January 21, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28108979/analysis-of-stress-only-imaging-comparing-upright-and-supine-czt-camera-acquisition-to-conventional-gamma-camera-images-with-and-without-attenuation-correction-with-coronary-angiography-as-a-reference
#4
Zenith A Jameria, Mouhamad Abdallah, Mariano Fernandez-Ulloa, Robert O'Donnell, Alok K Dwivedi, Erica Washburn, Naseer Khan, Mahyar Khaleghi, Nischelle Kalakota, Myron C Gerson
BACKGROUND: Diagnostic performance of stress-only imaging using a Cadmium-Zinc-Telluride (CZT) camera has not been directly compared in the same patients to stress-only attenuation-corrected conventional Anger camera images. METHODS: 112 subjects with correlative coronary angiographic data and 40 subjects with <5% pre-test likelihood of coronary disease completed attenuation-corrected stress-only images on a conventional Anger camera and uncorrected upright and supine stress images on a CZT camera...
January 20, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/28108969/long-term-outcomes-of-roux-en-y-gastric-bypass-conversion-of-failed-laparoscopic-gastric-band
#5
Hanaa N Dakour Aridi, Mohammad-Rachad Wehbe, Ghassan Shamseddine, Ramzi S Alami, Bassem Y Safadi
BACKGROUND: Laparoscopic adjustable gastric band (LAGB) carries a high rate of failure and reoperation. Laparoscopic conversion of failed LAGB to Roux-en-Y gastric bypass (RYGB) has been shown to be safe and feasible, but long-term follow-up data is still limited. OBJECTIVES: The aim of this study is to evaluate the safety and effectiveness of RYGB after failed LAGB in our patient population. SETTING: The setting was the University Hospital, Beirut, Lebanon...
January 20, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28108650/aerobic-efficiency-is-associated-with-the-improvement-in-maximal-power-output-during-acute-hyperoxia
#6
Tom A Manselin, Olof Södergård, Filip J Larsen, Peter Lindholm
This study investigated the relationship between aerobic efficiency during cycling exercise and the increase in physical performance with acute hyperoxic exposure (FiO2 ~31%) (HOX) and also tested the hypothesis that fat oxidation could be increased by acute hyperoxia. Fourteen males and four females were recruited for two sessions, where they exercised for 2 × 10 min at 100 W to determine efficiency. HOX and normoxia (NOX) were administered randomly on both occasions to account for differences in nitrogen exchange...
January 2017: Physiological Reports
https://www.readbyqxmd.com/read/28108649/intracellular-oxygen-tension-limits-muscle-contraction-induced-change-in-muscle-oxygen-consumption-under-hypoxic-conditions-during-hb-free-perfusion
#7
Hisashi Takakura, Minoru Ojino, Thomas Jue, Tatsuya Yamada, Yasuro Furuichi, Takeshi Hashimoto, Satoshi Iwase, Kazumi Masuda
Under acute hypoxic conditions, the muscle oxygen uptake (mV˙O2) during exercise is reduced by the restriction in oxygen-supplied volume to the mitochondria within the peripheral tissue. This suggests the existence of a factor restricting the mV˙O2 under hypoxic conditions at the peripheral tissue level. Therefore, this study set out to test the hypothesis that the restriction in mV˙O2 is regulated by the net decrease in intracellular oxygen tension equilibrated with myoglobin oxygen saturation (∆PmbO2) during muscle contraction under hypoxic conditions...
January 2017: Physiological Reports
https://www.readbyqxmd.com/read/28108645/whole-body-hyperthermia-but-not-skin-hyperthermia-accelerates-brain-and-locomotor-limb-circulatory-strain-and-impairs-exercise-capacity-in-humans
#8
Steven J Trangmar, Scott T Chiesa, Kameljit K Kalsi, Niels H Secher, José González-Alonso
Cardiovascular strain and hyperthermia are thought to be important factors limiting exercise capacity in heat-stressed humans, however, the contribution of elevations in skin (Tsk) versus whole body temperatures on exercise capacity has not been characterized. To ascertain their relationships with exercise capacity, blood temperature (TB), oxygen uptake (V̇O2), brain perfusion (MCA Vmean), locomotor limb hemodynamics, and hematological parameters were assessed during incremental cycling exercise with elevated skin (mild hyperthermia; HYPmild), combined core and skin temperatures (moderate hyperthermia; HYPmod), and under control conditions...
January 2017: Physiological Reports
https://www.readbyqxmd.com/read/28108496/connectivity-of-the-cingulate-sulcus-visual-area-csv-in-the-human-cerebral-cortex
#9
Andrew T Smith, Anton L Beer, Michele Furlan, Rogier B Mars
The human cingulate sulcus visual area (CSv) responds selectively to visual and vestibular cues to self-motion. Although it is more selective for visual self-motion cues than any other brain region studied, it is not known whether CSv mediates perception of self-motion. An alternative hypothesis, based on its location, is that it provides sensory information to the motor system for use in guiding locomotion. To evaluate this hypothesis we studied the connectivity pattern of CSv, which is completely unknown, with a combination of diffusion MRI and resting-state functional MRI...
January 19, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/28108494/the-rich-club-organization-in-rat-functional-brain-network-to-balance-between-communication-cost-and-efficiency
#10
Xia Liang, Li-Ming Hsu, Hanbing Lu, Akira Sumiyoshi, Yong He, Yihong Yang
Network analyses of structural connectivity in the brain have highlighted a set of highly connected hubs that are densely interconnected, forming a "rich-club" substrate in diverse species. Here, we demonstrate the existence of rich-club organization in functional brain networks of rats. Densely interconnected rich-club regions are found to be distributed in multiple brain modules, with the majority located within the putative default mode network. Rich-club members exhibit high wiring cost (as measured by connection distance) and high metabolic running cost (as surrogated by cerebral blood flow), which may have evolved to achieve high network communications to support efficient brain functions...
January 19, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/28108320/modulation-on-brain-gray-matter-activity-and-white-matter-integrity-by-apoe-%C3%AE%C2%B54-risk-gene-in-cognitively-intact-elderly-a-multimodal-neuroimaging-study
#11
Suping Cai, Yuanyuan Jiang, Yubo Wang, Xiaoming Wu, Junchan Ren, Min Seob Lee, Sunghoon Lee, Liyu Huang
Apolipoprotein E (APOE) ε4 allele is the genetic risk factor with the most established evidence for sporadic Alzheimer's disease. Previous neuroimaging studies have demonstrated insufficiently consistent functional and structural changes among healthy APOE ε4 carriers when compared to non-carriers. Here, in a cognitively intact elderly group (a total of 110: 45 APOE ε4 carriers, 65 non-carriers), we aimed to investigate the potential role of APOE ε4 in the modulation of grey matter activity, white matter integrity, and brain morphology before the development of clinically significant symptoms and signs, by methods of: amplitude of low frequency fluctuations and regional homogeneity analysis based on resting state fMRI, and fiber tractography approach based on diffusion tensor imaging...
January 17, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28108204/the-dietary-approaches-to-stop-hypertension-diet-cognitive-function-and-cognitive-decline-in-american-older-women
#12
Agnes A M Berendsen, Jae H Kang, Ondine van de Rest, Edith J M Feskens, Lisette C P G M de Groot, Francine Grodstein
OBJECTIVES: To examine the association between long-term adherence to the Dietary Approaches to Stop Hypertension (DASH) diet with cognitive function and decline in older American women. DESIGN: Prospective cohort study. SETTING: The Nurses' Health Study, a cohort of registered nurses residing in 11 US states. PARTICIPANTS: A total of 16,144 women from the Nurses' Health Study, aged ≥70 years, who underwent cognitive testing a total of 4 times by telephone from 1995 to 2001 (baseline), with multiple dietary assessments between 1984 and the first cognitive examination...
January 17, 2017: Journal of the American Medical Directors Association
https://www.readbyqxmd.com/read/28108105/performance-of-predictive-equations-specifically-developed-to-estimate-resting-energy-expenditure-in-ventilated-critically-ill-children
#13
Corinne Jotterand Chaparro, Patrick Taffé, Clémence Moullet, Jocelyne Laure Depeyre, David Longchamp, Marie-Hélène Perez, Jacques Cotting
OBJECTIVE: To determine, based on indirect calorimetry measurements, the biases of predictive equations specifically developed recently for estimating resting energy expenditure (REE) in ventilated critically ill children, or developed for healthy populations but used in critically ill children. STUDY DESIGN: A secondary analysis study was performed using our data on REE measured in a previous prospective study on protein and energy needs in pediatric intensive care unit...
January 18, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/28108085/learning-curve-of-laparoscopic-roux-en-y-gastric-bypass-in-an-asian-low-volume-bariatric-unit
#14
Shih-Chiang Shen, Chun-Yi Tsai, Chien-Hung Liao, Yu-Yin Liu, Ta-Sen Yeh, Keng-Hao Liu
BACKGROUND: Obesity has become a healthcare burden in Taiwan and the rest of Asia. Laparoscopic Roux-en-Y gastric bypass (LRYGB) provides good weight loss outcome, and improves comorbidity as well as quality of life. We present our experience of the learning curve for LRYGB in a low-volume bariatric unit. METHODS: From March 2009 to August 2011, 60 consecutive patients who underwent LRYGB were included. They were separated into two groups, with the first 30 cases in Group 1 and the remaining 30 cases in Group 2...
January 17, 2017: Asian Journal of Surgery
https://www.readbyqxmd.com/read/28108041/strain-elastography-as-a-new-method-for-assessing-pelvic-floor-biomechanics
#15
Jana Marie Kreutzkamp, Sebastian Daniel Schäfer, Susanne Amler, Felix Strube, Ludwig Kiesel, Ralf Schmitz
Strain elastography (SE) is a new technique of parametric imaging that allows quantification of the elasticity of tissue. The aim of our study was to determine if the elasticity of para-urethral tissue correlates with urethral mobility and urinary incontinence (UI). Ninety-nine unselected women were investigated with SE. They were given a standardized interview about UI, and SE raw data for the para-urethral tissue were acquired in a sagittal standard urethra-symphysis view while being stimulated by a coughing fit...
January 17, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28107898/the-experience-of-pain-severity-and-pain-interference-in-vulvodynia-patients-the-role-of-cognitive-behavioural-factors-psychological-distress-and-fatigue
#16
Claudia Chisari, Joseph Chilcot
OBJECTIVE: Vulvodynia is a chronic pain condition characterised by severe pain affecting the vulva. Biopsychosocial models have revealed the importance of illness perceptions, cognitive-behavioural variables and psychological distress in explaining the experience of pain and disability across several conditions. These factors have never been collectively examined in vulvodynia. We predicted that distress, fatigue, illness perceptions, and cognitive-behavioural factors would be associated with pain severity and interference among women with vulvodynia...
February 2017: Journal of Psychosomatic Research
https://www.readbyqxmd.com/read/28107892/generalized-hypervigilance-in-fibromyalgia-normal-interoceptive-accuracy-but-reduced-self-regulatory-capacity
#17
Silke Rost, Dimitri M L Van Ryckeghem, André Schulz, Geert Crombez, Claus Vögele
OBJECTIVE: The factors underlying the aetiology of fibromyalgia (FM) are largely unknown. According to the generalized hypervigilance hypothesis (GHH), FM patients show excessive attention towards pain stimuli and other sensory events, thereby increasing pain perception and dysfunctional behaviour. We tested this notion by assessing interoceptive accuracy (IA) in FM patients and matched healthy controls. We also tested the hypothesis that FM is characterized by reduced self-regulatory capacity as indexed by heart rate variability (HRV)...
February 2017: Journal of Psychosomatic Research
https://www.readbyqxmd.com/read/28107891/telephone-administered-versus-live-group-cognitive-behavioral-stress-management-for-adults-with-cfs
#18
Daniel L Hall, Emily G Lattie, Sara F Milrad, Sara Czaja, Mary Ann Fletcher, Nancy Klimas, Dolores Perdomo, Michael H Antoni
OBJECTIVE: Chronic fatigue syndrome (CFS) symptoms have been shown to be exacerbated by stress and ameliorated by group-based psychosocial interventions such as cognitive behavioral stress management (CBSM). Still, patients may have difficulty attending face-to-face groups. This study compared the effects of a telephone-delivered (T-CBSM) vs a live (L-CBSM) group on perceived stress and symptomology in adults with CFS. METHODS: Intervention data from 100 patients with CFS (mean age 50years; 90% female) participating in T-CBSM (N=56) or L-CBSM (N=44) in previously conducted randomized clinical trials were obtained...
February 2017: Journal of Psychosomatic Research
https://www.readbyqxmd.com/read/28107890/affective-impairment-in-chronic-low-blood-pressure
#19
Stefan Duschek, Alexandra Hoffmann, Gustavo A Reyes Del Paso
OBJECTIVE: Physical complaints such as faintness, dizziness, cold limbs and headaches have been well-established in chronic low blood pressure (hypotension). This study investigated the occurrence of adverse emotional states and the symptoms of depression in this condition. As autonomic dysregulation, particularly diminished sympathetic tone, is believed to be involved in the etiology of hypotension, the impact of different facets of autonomic cardiovascular control on mood and depressive symptoms was also explored...
February 2017: Journal of Psychosomatic Research
https://www.readbyqxmd.com/read/28107887/associations-between-positive-emotional-well-being-and-stress-induced-myocardial-ischemia-well-being-scores-predict-exercise-induced-ischemia
#20
Jacob P Feigal, Stephen H Boyle, Zainab Samad, Eric J Velazquez, Jennifer L Wilson, Richard C Becker, Redford B Williams, Cynthia M Kuhn, Thomas L Ortel, Joseph G Rogers, Christopher M O'Connor, Wei Jiang
OBJECTIVE: Depressive symptoms have been associated with myocardial ischemia induced by mental (MSIMI) and exercise (ESIMI) stress in clinically stable ischemic heart disease (IHD) patients, but the association between positive emotions and inducible ischemia is less well characterized. The objective of this study was to examine the associations between ratings of well-being and stress-induced ischemia. METHODS: Subjects were adult patients with documented IHD underwent mental and exercise stress testing for the Responses of Myocardial Ischemia to Escitalopram Treatment (REMIT) trial...
February 2017: Journal of Psychosomatic Research
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