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https://www.readbyqxmd.com/read/28747881/frequency-unspecific-effects-of-%C3%AE-tacs-related-to-a-visuospatial-working-memory-task
#1
Maria-Lisa Kleinert, Caroline Szymanski, Viktor Müller
Working memory (WM) is crucial for intelligent cognitive functioning, and synchronization phenomena in the fronto-parietal network have been suggested as an underlying neural mechanism. In an attempt to provide causal evidence for this assumption, we applied transcranial alternating current stimulation (tACS) at theta frequency over fronto-parietal sites during a visuospatial match-to-sample (MtS) task. Depending on the stimulation protocol, i.e., in-phase, anti-phase or sham, we anticipated a differential impact of tACS on behavioral WM performance as well as on the EEG (electroencephalography) during resting state before and after stimulation...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28747878/transcranial-electric-stimulation-can-impair-gains-during-working-memory-training-and-affects-the-resting-state-connectivity
#2
Annie Möller, Federico Nemmi, Kim Karlsson, Torkel Klingberg
Transcranial electric stimulation (tES) is a promising technique that has been shown to improve working memory (WM) performance and enhance the effect of cognitive training. However, experimental set up and electrode placement are not always determined based on neurofunctional knowledge about WM, leading to inconsistent results. Additional research on the effects of tES grounded on neurofunctional evidence is therefore necessary. Sixty young, healthy, volunteers, assigned to six different groups, participated in 5 days of stimulation or sham treatment...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28745805/tac-302-promotes-neurite-outgrowth-of-isolated-peripheral-neurons-and-prevents-bladder-denervation-related-bladder-dysfunctions-following-bladder-outlet-obstruction-in-rats
#3
Shohei Yoshida, Naoki Orimoto, Hiroshi Tsukihara, Takahisa Noma, Atsushi Hakozaki, Eiji Sasaki
AIMS: To evaluate the ability of TAC-302, a cyclohexenoic fatty alcohol derivative, to enhance neurite outgrowth in cultured rat dorsal root ganglion (DRG) neurons, and the preventive effects of TAC-302 on bladder denervation-related storage and voiding dysfunctions in rats with bladder outlet obstruction (BOO). METHODS: Rat DRG neurons were cultured in the presence of TAC-302. Cell numbers and neurite lengths were quantified after a 24 h culture. BOO was achieved by partial ligature of the proximal urethra in female rats...
July 26, 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/28744992/the-effect-of-12-weeks-carnosine-supplementation-on-renal-functional-integrity-and-oxidative-stress-in-pediatric-patients-with-diabetic-nephropathy-a-randomized-placebo-controlled-trial
#4
Nancy Samir Elbarbary, Eman Abdel Rahman Ismail, Abdel Rahman El-Naggar, Mahitab Hany Hamouda, Manal El-Hamamsy
BACKGROUND AND OBJECTIVES: Oxidative stress is a significant contributor to the pathogenesis of diabetic nephropathy. Carnosine is a natural radical oxygen species scavenger. We investigated the effect of carnosine as an adjuvant therapy on urinary albumin excretion (UAE), the tubular damage marker alpha 1-microglobulin (A1M), and oxidative stress in pediatric patients with type 1 diabetes and nephropathy. METHODS: This randomized placebo-controlled trial included 90 patients with diabetic nephropathy, despite oral angiotensin-converting enzyme inhibitors (ACE-Is), who were randomly assigned to receive either 12 weeks of carnosine 1 g/day (n = 45), or matching placebo (n = 45)...
July 26, 2017: Pediatric Diabetes
https://www.readbyqxmd.com/read/28742516/prevention-of-renal-ischemia-perfusion-induced-renal-and-hepatic-injury-in-adult-male-albino-rats-by-oxytocin-role-of-nitric-oxide
#5
Merhan Mamdouh Ragy, Neven Makram Aziz
BACKGROUND: Oxytocin (OT) has an anti-inflammatory and antioxidant effect in the different inflammatory models. The current study aimed to evaluate the protective function of OT in renal and hepatic damages triggered by renal ischemia/reperfusion (IR) in rats. Moreover, the effect of NG-nitro-l-arginine methyl ester (l-NAME) was investigated on the kidney and liver functions in renal IR model. METHODS: Twenty-four rats were divided into four groups (six rats each) as follows: (1) Sham-operated group; (2) Renal IR group; (3) Renal IR+OT group; (4) Renal IR+OT+l-NAME...
July 25, 2017: Journal of Basic and Clinical Physiology and Pharmacology
https://www.readbyqxmd.com/read/28741082/dietary-total-antioxidant-capacity-and-incidence-of-chronic-kidney-disease-in-subjects-with-dysglycemia-tehran-lipid-and-glucose-study
#6
Golaleh Asghari, Emad Yuzbashian, Sahar Shahemi, Zahra Gaeini, Parvin Mirmiran, Fereidoun Azizi
PURPOSE: We aimed to investigate the association of dietary total antioxidant capacity (TAC) with incidence of CKD in subjects with dysglycemia. METHODS: We followed-up 1179 subjects aged ≥30 years with dysglycemia from the Tehran Lipid and Glucose Study (TLGS) for 3 years, who were initially free of CKD. Dietary intakes of TAC, vitamin C, vitamin E, and β-carotene were assessed by a food-frequency questionnaire at the baseline. Dietary TAC was estimated using the oxygen radical absorbance capacity method...
July 24, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/28737454/bioactivity-of-epigallocatechin-gallate-nanoemulsions-evaluated-in-mice-model
#7
Antonios E Koutelidakis, Konstantina Argyri, Zoi Sevastou, Dimitra Lamprinaki, Elli Panagopoulou, Evi Paximada, Aggeliki Sali, Vassilis Papalazarou, Athanasios Mallouchos, Vasiliki Evageliou, Vasiliki Kostourou, Ioanna Mantala, Maria Kapsokefalou
The hypothesis that incorporation of epigallocatechin gallate (EGCG) into nanoemulsions may increase its bioactivity compared with EGCG aqueous solutions was examined in mice. After an in vitro study in a model system with stimulated gastrointestinal conditions, the following EGCG nanoemulsions were used in a mice experiment: Emulsion I: emulsion water in oil (W/O), which contained 0.23 mg/mL EGCG in aqueous phase; Emulsion II: emulsion oil in water (O/W), which contained 10% olive oil and 0.23 mg/mL esterified EGCG in fatty phase; and Emulsion III: emulsion O/W in water (W1/O/W2; 8:32:60), which contained 32% olive oil and 0...
July 24, 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/28736028/association-between-tacrolimus-pharmacokinetics-and-cytochrome-p450-3a5-and-multidrug-resistance-protein-1-exon-21-polymorphisms
#8
M Soda, M Fujitani, R Michiuchi, A Shibayama, K Kanamori, S Yoshikuni, Y Ohno, T Tsuchiya, A Suzuki, K Horie, T Deguchi, Y Itoh, K Kitaichi
BACKGROUND: Individual differences in the pharmacokinetics (PK) of tacrolimus (TAC), an immunosuppressive drug, are reportedly associated with single-nucleotide polymorphisms (SNPs) of cytochrome P450 (CYP) 3A5 and multidrug resistance protein 1 (MDR1). We determined the effect of SNPs in CYP3A5 and MDR1 exons 21 and 26 on TAC PK parameters. METHODS: Thirty-eight Japanese patients who underwent renal transplantation were genotyped for CYP3A5 and exons 21 and 26 of MDR1 with the use of polymerase chain reaction-restriction fragment length polymorphism analysis...
July 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28734260/time-averaged-concentrations-are-effective-for-predicting-chronic-toxicity-of-varying-copper-pulse-exposures-for-two-freshwater-green-algae-species
#9
Brad M Angel, Stuart L Simpson, Ellissah Granger, Kathryn Goodwyn, Dianne F Jolley
Intermittent, fluctuating and pulsed contaminant discharges may result in organisms receiving highly variable contaminant exposures. This study investigated the effects of dissolved copper pulse concentration and exposure duration on the toxicity to two freshwater green algae species. The effects of single copper pulses of between 1 and 48 h duration and continuous exposures (72 h) on growth rate inhibition of Pseudokirchneriella subcapitata and Chlorella sp. were compared on a time-averaged concentration (TAC) basis...
July 19, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28733446/how-does-pressure-overload-cause-cardiac-hypertrophy-and-dysfunction-high-ouabain-affinity-cardiac-na-pumps-are-crucial
#10
Mordecai P Blaustein
Left ventricular hypertrophy is frequently observed in hypertensive patients, and is believed to be due to the pressure overload and cardiomyocyte stretch. Three recent reports on mice with genetically-engineered Na(+) pumps, however, demonstrate that cardiac ouabain-sensitive α2 Na(+) pumps play a key role in the pathogenesis of trans-aortic constriction (TAC)-induced hypertrophy. Hypertrophy was delayed/attenuated in mice with mutant, ouabain-resistant α2 Na(+) pumps and in mice with cardiac-selective knockout (KO) or transgenic overexpression (TG) of α2 Na(+) pumps...
July 21, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28728576/beneficial-effect-of-kidney-transplantation-from-a-deceased-donor-on-severe-chronic-refractory-intradialytic-hypotension-a-case-report
#11
Ewa Ignacak, Dominik Cieniawski, Alina Bętkowska-Prokop, Czesław Osuch, Marek Kuźniewski, Władysław Sułowicz
BACKGROUND: Chronic refractory hypotension (IDH, intradialytic hypotension) is a rare but serious problem encountered in patients on hemodialysis. Patients with chronic hypotension are often disqualified by transplant teams from renal transplantation. This is due to the possibility of an enormous risk of ischemic complications. CASE PRESENTATION: We describe a 44-year old female patient with severe refractory hypotension (mean BP 60/30 mmHg, the lowest 48/28 mmHg), which appeared after bilateral laparoscopic nephrectomy of the infected kidneys...
July 20, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28724361/serum-melatonin-levels-in-survivor-and-non-survivor-patients-with-traumatic-brain-injury
#12
Leonardo Lorente, María M Martín, Pedro Abreu-González, Antonia Pérez-Cejas, Luis Ramos, Mónica Argueso, Jordi Solé-Violán, Juan J Cáceres, Alejandro Jiménez, Victor García-Marín
BACKGROUND: Circulating levels of melatonin in patients with traumatic brain injury (TBI) have been determined in a little number of studies with small sample size (highest sample size of 37 patients) and only were reported the comparison of serum melatonin levels between TBI patients and healthy controls. As to we know, the possible association between circulating levels of melatonin levels and mortality of patients with TBI have not been explored; thus, the objective of our current study was to determine whether this association actually exists...
July 19, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28722188/preventing-thin-film-dewetting-via-graphene-capping
#13
Peigen Cao, Peter Bai, Arash A Omrani, Yihan Xiao, Kacey L Meaker, Hsin-Zon Tsai, Aiming Yan, Han Sae Jung, Ramin Khajeh, Griffin F Rodgers, Youngkyou Kim, Andrew S Aikawa, Mattew A Kolaczkowski, Yi Liu, Alex Zettl, Ke Xu, Michael F Crommie, Ting Xu
A monolayer 2D capping layer with high Young's modulus is shown to be able to effectively suppress the dewetting of underlying thin films of small organic semiconductor molecule, polymer, and polycrystalline metal, respectively. To verify the universality of this capping layer approach, the dewetting experiments are performed for single-layer graphene transferred onto polystyrene (PS), semiconducting thienoazacoronene (EH-TAC), gold, and also MoS2 on PS. Thermodynamic modeling indicates that the exceptionally high Young's modulus and surface conformity of 2D capping layers such as graphene and MoS2 substantially suppress surface fluctuations and thus dewetting...
July 19, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28721486/modulatory-effect-of-lycopene-against-carbofuran-toxicity-in-african-catfish-clarias-gariepinus
#14
Heba S Hamed, Alaa G M Osman
In the current study, African catfish, Clarias gariepinus, was exposed to a sublethal concentration of carbofuran (CF) to investigate its negative effects on biochemical and oxidative stress biomarkers. Also, the putative role of lycopene (LYC) administration in alleviating these negative effects was evaluated. Fish were divided into six groups in triplicates as follows: group I was without treatment, group II was orally administered corn oil, group III was orally administered 18 mg LYC/kg body weight, group IV was exposed to 0...
July 18, 2017: Fish Physiology and Biochemistry
https://www.readbyqxmd.com/read/28721092/hemicrania-continua-clinical-review-diagnosis-and-management
#15
REVIEW
Sanjay Prakash, Payal Patel
Hemicrania continua (HC) is an indomethacin-responsive primary headache disorder which is currently classified under the heading of trigeminal autonomic cephalalgias (TACs). It is a highly misdiagnosed and underreported primary headache. The pooled mean delay of diagnosis of HC is 8.0 ± 7.2 years. It is not rare. We noted more than 1000 cases in the literature. It represents 1.7% of total headache patients attending headache or neurology clinic. Just like other TACs, it is characterized by strictly unilateral pain in the trigeminal distribution, cranial autonomic features in the same area and agitation during exacerbations/attacks...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/28720941/chemical-composition-and-bioactivity-of-essential-oils-from-flower-and-fruit-of-thymbra-capitata-and-thymus-species
#16
Jonathan Delgado-Adámez, María Garrido, Maria Elena Bote, María C Fuentes-Pérez, Javier Espino, Daniel Martín-Vertedor
Thymbra capitata and Thymus species are commonly known as thyme in Spain and they are currently used as culinary herbs, as well as for ornamental, aromatizing and traditional medicinal purposes. Given the economic importance of thyme oils, many thyme species have been studied, and their essential oils (EOs) and other volatile-containing extracts have been chemically characterized. The aim of this study was to evaluate the antioxidant, antimicrobial and cytotoxic activities as well as the phytochemical composition of the EOs from fruits and flowers of T...
June 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28720321/no-evidence-for-progressive-deterioration-in-stimulated-insulin-secretion-in-renal-transplant-recipients-after-12years-tacrolimus-exposure
#17
Mariëlle A C J Gelens, Johannes P van Hooff, Len Usvyat, Maarten H Christiaans
AIMS: Tacrolimus (Tac) inhibits insulin secretion in a Tac-trough blood level dependent way early post-transplant in renal transplant recipients (Rtx). It is unknown whether long-term exposure results into a progressive beta cells dysfunction. METHODS: Two independent cohorts of Tac-treated non-diabetic Rtx, previously participating in glucose metabolism studies using intravenous Glucose Tolerance Test (ivGTT) were included: Fifty-eight Rtx were tested by ivGTT cross-sectional between 0...
July 4, 2017: Journal of Diabetes and its Complications
https://www.readbyqxmd.com/read/28718833/coconut-oil-aggravates-pressure-overload-induced-cardiomyopathy-without-inducing-obesity-systemic-insulin-resistance-or-cardiac-steatosis
#18
Ilayaraja Muthuramu, Ruhul Amin, Andrey Postnov, Mudit Mishra, Frank Jacobs, Olivier Gheysens, Paul P Van Veldhoven, Bart De Geest
Studies evaluating the effects of high-saturated fat diets on cardiac function are most often confounded by diet-induced obesity and by systemic insulin resistance. We evaluated whether coconut oil, containing C12:0 and C14:0 as main fatty acids, aggravates pressure overload-induced cardiomyopathy induced by transverse aortic constriction (TAC) in C57BL/6 mice. Mortality rate after TAC was higher (p < 0.05) in 0.2% cholesterol 10% coconut oil diet-fed mice than in standard chow-fed mice (hazard ratio 2.32, 95% confidence interval 1...
July 18, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28716598/effect-of-lecithin-nanoliposome-or-soybean-lecithin-supplemented-by-pomegranate-extract-on-post-thaw-flow-cytometric-microscopic-and-oxidative-parameters-in-ram-semen
#19
Mahdieh Mehdipour, Hossein Daghigh Kia, Maryam Nazari, Abouzar Najafi
This investigation was carried out to study the effect of soybean lecithin 1.5% (wt/vol) (0, 2.5, 5 and 7.5 mg l(-1) pomegranate extract (PE)) or PE-loaded lecithin nanoliposome (0, 2.5, 5 and 7.5 mg l(-1)) to Tris-based extender. Sperm motility (CASA), viability, membrane integrity (HOS test), abnormalities, mitochondrial activity, apoptosis status, lipid peroxidation, total antioxidant capacity (TAC)) and antioxidant activities (GPX, SOD) were investigated following freeze-thawing. No significant differences (P < 0...
July 14, 2017: Cryobiology
https://www.readbyqxmd.com/read/28716357/clinical-and-metabolic-response-to-flaxseed-oil-omega-3-fatty-acids-supplementation-in-patients-with-diabetic-foot-ulcer-a-randomized-double-blind-placebo-controlled-trial
#20
Zahra Soleimani, Fatemeh Hashemdokht, Fereshteh Bahmani, Mohsen Taghizadeh, Mohammad Reza Memarzadeh, Zatollah Asemi
BACKGROUND: Data on the effects of flaxseed oil omega-3 fatty acids supplementation on wound healing and metabolic status in subjects with diabetic foot ulcer (DFU) are scarce. OBJECTIVE: This study was conducted to evaluate the effects of flaxseed oil omega-3 fatty acids supplementation on wound healing and metabolic status in subjects with DFU. METHODS: The current randomized, double-blind, placebo-controlled trial was conducted among 60 subjects (aged 40-85years old) with grade 3 DFU...
June 28, 2017: Journal of Diabetes and its Complications
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