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https://www.readbyqxmd.com/read/28813122/morphological-alterations-in-the-jejunal-mucosa-of-aged-rats-and-the-possible-protective-role-of-green-tea
#1
Zeinab Abel-Rehim Hassan, Agata Zauszkiewicz-Pawlak, Shaimaa A Abdelrahman, Sami Algaidi, Maha Desouky, Sally M Shalaby
INTRODUCTION: Gastrointestinal disorders become more prevalent with ageing. This study is aimed to describe morphological changes that occur in the jejunal mucosa of male albino rats as a result of ageing and the protective effect of green tea supplements. MATERIAL AND METHODS: The experiment was performed on sixty rats: thirty young-adult (6-month old, body mass 200-220 g) and thirty old (24-month-old, body mass 220-260 g) animals. Each group was further divided into two subgroups (n = 15 each): control rats and green tea-treated rats that received 1...
August 16, 2017: Folia Histochemica et Cytobiologica
https://www.readbyqxmd.com/read/28811693/beneficial-effect-of-aqueous-garlic-extract-on-inflammation-and-oxidative-stress-status-in-the-kidneys-of-type-1-diabetic-rats
#2
Abolfazl Nasiri, Nasrin Ziamajidi, Roghayeh Abbasalipourkabir, Mohammad Taghi Goodarzi, Massoud Saidijam, Hamid Behrouj, Sara Solemani Asl
One of the most important complications of diabetes is nephropathy. This study investigates the effects of aqueous garlic extract on inflammation and oxidative stress status in the kidneys of diabetic rats. Male rats were divided into four groups- control rats, diabetic rats, garlic extract-treated diabetic rats, garlic extract-treated normal rats. The glucose, urea, uric acid, and creatinine levels were measured in sera using colorimetric methods. To determine the oxidative stress condition in the kidney tissues, total antioxidant capacity (TAC), malondialdehyde (MDA), and total oxidant status (TOS) were measured using colorimetric methods...
July 2017: Indian Journal of Clinical Biochemistry: IJCB
https://www.readbyqxmd.com/read/28810721/de-novo-low-dose-sirolimus-versus-mycophenolate-mofetil-in-combination-with-extended-release-tacrolimus-in-kidney-transplant-recipients-a-multicentre-open-label-randomized-controlled-non-inferiority-trial
#3
Kyu Ha Huh, Jae Geun Lee, Jongwon Ha, Chang-Kwon Oh, Man Ki Ju, Chan-Duck Kim, Hong Rae Cho, Cheol Woong Jung, Beom Jin Lim, Yu Seun Kim
Background: Most of the previous studies reported that tacrolimus (TAC) with sirolimus (SRL) was associated with worse post-transplant outcomes in kidney transplantation, compared with TAC with mycophenolate mofetil (MMF). These might be attributable to high-dose SRL. However, outcomes using low-dose SRL with TAC for kidney transplantation are uncertain. The aim of this study was to assess the efficacy and safety of low-dose SRL with extended-release tacrolimus (ER-TAC) versus MMF with ER-TAC...
August 1, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28809110/deprotonative-silylation-of-aromatic-c-h-bonds-mediated-by-a-combination-of-trifluoromethyltrialkylsilane-and-fluoride
#4
Kanako Nozawa-Kumada, Sayuri Osawa, Midori Sasaki, Isabelle Chataigner, Masanori Shigeno, Yoshinori Kondo
A method for the deprotonative silylation of aromatic C-H bonds has been developed using trifluoromethyltrimethylsilane (CF3SiMe3, Ruppert-Prakash reagent) and a catalytic amount of fluoride. In this reaction, CF3SiMe3 is considered to act as a base and a silicon electrophile. This process is highly tolerant to various functional groups on heteroarenes and benzenes. Furthermore, this method can be applied to the synthesis of trimethylsilyl group-containing analogs of TAC-101, which is a bioactive synthetic retinoid with selective affinity for RAR-α binding...
August 15, 2017: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/28808206/the-effect-of-sunblock-against-oxidative-stress-in-farmers-a-pilot-study
#5
Yong-Dae Kim, Dong-Hyuk Yim, Sang-Yong Eom, Ji Yeoun Lee, Heon Kim
Farmers are frequently exposed to ultraviolet (UV) radiation which causes various diseases by inducing oxidative stress. This study aimed to assess the effects of sunblock on oxidative stress in the body. Eighty-seven farmers were divided into two groups: those who wore sunblock for five days and those who did not. The total antioxidant capacity (TAC) in urine, which is an antioxidant indicator, and 8-hydroxy-2-deoxyguanosine (8-OHdG) levels in urine, an oxidative stress indicator, were measured. The urinary TAC of sunblock users was significantly higher than that of non-users, but urinary 8-OHdG levels were not significantly different...
July 13, 2017: Journal of Biomedical Research
https://www.readbyqxmd.com/read/28805231/the-histone-methyltransferase-mixed-lineage-leukemia-mll-3-may-play-a-potential-role-on-clinical-dilated-cardiomyopathy
#6
Ding-Sheng Jiang, Xin Yi, Rui Li, Yun-Shu Su, Jing Wang, Min-Lai Chen, Li-Gang Liu, Min Hu, Cai Cheng, Ping Zheng, Xue-Hai Zhu, Xiang Wei
Histone modifications play a critical role in the pathological processes of dilated cardiomyopathy (DCM). While the role and expression pattern of histone methyltransferases (HMTs), especially mixed lineage leukemia (MLL) families on DCM are unclear. To this end, twelve normal and fifteen DCM heart samples were included in the present study. A murine cardiac remodelling model was induced by transverse aortic constriction (TAC). Real-time PCR was performed to detect the expression levels of MLL families in the mouse and human left ventricles...
August 9, 2017: Molecular Medicine
https://www.readbyqxmd.com/read/28805022/hesperidin-supplementation-alleviates-oxidative-dna-damage-and-lipid-peroxidation-in-type-2-diabetes-a-randomized-double-blind-placebo-controlled-clinical-trial
#7
Fatemeh Homayouni, Fatemeh Haidari, Mehdi Hedayati, Mehrnoosh Zakerkish, Kambiz Ahmadi
This study aimed to examine the effects of hesperidin supplement on the glycemic parameters, oxidative DNA damage, and lipid peroxidation in patients with type 2 diabetes. Sixty-four patients were randomly allocated to receive 500 mg/day hesperidin or placebo capsules for 6 weeks. Data on glycemic parameters, total antioxidant capacity (TAC), 8-hydroxydeoxyguanosine (8-OHDG), and malondialdehyde (MDA) were collected at the baseline and at the end of the study. In hesperidin group, TAC increased (0.74 ± 0...
August 14, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28799247/the-valosin-containing-protein-is-a-novel-repressor-of-cardiomyocyte-hypertrophy-induced-by-pressure-overload
#8
Ning Zhou, Ben Ma, Shaunrick Stoll, Tristan T Hays, Hongyu Qiu
Hypertension-induced left ventricular hypertrophy (LVH) is an independent risk factor for heart failure. Regression of LVH has emerged as a major goal in the treatment of hypertensive patients. Here, we tested our hypothesis that the valosin-containing protein (VCP), an ATPase associate protein, is a novel repressor of cardiomyocyte hypertrophy under the pressure overload stress. Left ventricular hypertrophy (LVH) was determined by echocardiography in 4-month male spontaneously hypertensive rats (SHRs) vs. age-matched normotensive Wistar Kyoto (WKY) rats...
August 11, 2017: Aging Cell
https://www.readbyqxmd.com/read/28798797/the-effects-of-guizhi-gancao-decoction-on-pressure-overload-induced-heart-failure-and-posttranslational-modifications-of-tubulin-in-mice
#9
Hui-Hua Chen, Pei Zhao, Jing Tian, Wei Guo, Ming Xu, Chen Zhang, Rong Lu
Guizhi Gancao Decoction (GGD), a traditional Chinese medical recipe, has been widely used in the treatment of cardiovascular diseases in China for centuries. The present study was carried out to determine whether GGD exerts direct protective effects against pressure overload-induced heart failure. Moreover, we investigated whether GGD affects tubulin expression and posttranslational modifications. We demonstrated that GGD ameliorated TAC caused cardiac hypertrophy by gravimetric and echocardiography analysis in C57BL/6 mice...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28798397/sleep-mediates-the-association-between-homocysteine-and-oxidative-status-in-mild-cognitive-impairment
#10
Mayely P Sanchez-Espinosa, Mercedes Atienza, Jose L Cantero
Tremendous progress has been made over the last few years in understanding how sleep and amyloid-β (Aβ) cooperate to speed up the progression of Alzheimer's disease (AD). However, it remains unknown whether sleep deficits also interact with other risk factors that exacerbate the pathological cascade of AD. Based on evidence showing that higher levels of homocysteine (HCY) and sleep loss increase oxidative damage, we here investigate whether the relationship between HCY and total antioxidant capacity (TAC) is mediated by changes in objective sleep in healthy older (HO, N = 21) and mild cognitive impairment (MCI, N = 21) subjects...
August 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28797657/systematic-review-of-transabdominal-cerclage-placed-via-laparoscopy-for-the-prevention-of-preterm-birth
#11
REVIEW
Gaby N Moawad, Paul Tyan, Tracey Bracke, Elias D Abi Khalil, Vicky Vargas, Alexis Gimovsky, Cherie Marfori
Preterm birth is the leading cause of neonatal mortality and morbidity. Multiple interventions have been put in place to minimize this occurrence. Despite current recommendations including medical management, cervical length screening, and transvaginal cerclage a substantial number of women still experience preterm birth. For those patients, experts recommend a transabdominal cerclage. In our systematic review, we compare 26 studies (1116 patients) on transabdominal cerclage placed via laparotomy (TAC-lap) to 15 studies (728 patients) on transabdominal cerclage placed via laparoscopy (TAC-lsc)...
August 7, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/28792356/kinetic-evaluation-and-test-retest-reproducibility-of-11-c-ucb-j-a-novel-radioligand-for-positron-emission-tomography-imaging-of-synaptic-vesicle-glycoprotein-2a-in-humans
#12
Sjoerd J Finnema, Nabeel B Nabulsi, Joël Mercier, Shu-Fei Lin, Ming-Kai Chen, David Matuskey, Jean-Dominique Gallezot, Shannan Henry, Jonas Hannestad, Yiyun Huang, Richard E Carson
Synaptic vesicle glycoprotein 2A (SV2A) is ubiquitously present in presynaptic terminals. Here we report kinetic modeling and test-retest reproducibility assessment of the SV2A positron emission tomography (PET) radioligand [(11)C]UCB-J in humans. Five volunteers were examined twice on the HRRT after bolus injection of [(11)C]UCB-J. Arterial blood samples were collected for measurements of radiometabolites and free fraction. Regional time-activity curves were analyzed with 1-tissue (1T) and 2-tissue (2T) compartment models to estimate volumes of distribution ( VT)...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28791812/relationship-between-dietary-antioxidant-index-dai-and-antioxidants-level-in-plasma-of-krak%C3%A3-w-inhabitants
#13
Emilia Kolarzyk, Agata Pietrzycka, Joanna Zając, Joanna Morawiecka-Baranek
BACKGROUND: Some literature data indicate that antioxidant-rich food may significantly increase antioxidants in serum and decrease the oxidative stress but results are ambiguous. OBJECTIVES: The aim of this study was to estimate the total antioxidant capacity of food intake among the inhabitants of Kraków, Poland on the basis of dietary antioxidant index (DAI) and evaluation the relation between DAI and the level of antioxidants in plasma. MATERIAL AND METHODS: Examination included 70 (37 women and 33 men) non-smoking inhabitants of Krakow aged 46...
May 2017: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/28791744/assessment-of-the-imprinting-efficiency-of-an-imide-with-a-stoichiometric-pyridine-based-functional-monomer-in-precipitation-polymerisation
#14
K Fremielle Lim, Andrew J Hall, Stefania Lettieri, Clovia I Holdsworth
The efficiency of the stoichiometric non-covalent imprinting of the imide 2,3,5-tri-O-acetyluridine (TAU) with 2,6-bis(acrylamido)pyridine (BAAPy) as functional monomer due to their strong donor-acceptor-donor/acceptor-donor-acceptor (DAD/ADA) hydrogen bond array interaction has been evaluated by bulk imprinting. This study is the first to investigate the imprinting and template rebinding efficiencies of the TAU/BAAPy molecularly imprinted polymeric (MIP) system prepared by precipitation polymerisation. We found that the stoichiometric 1:1 T:FM ratio has not been maintained in precipitation polymerisation and an optimal TAU:BAAPy ratio of 1:2...
August 9, 2017: Journal of Molecular Recognition: JMR
https://www.readbyqxmd.com/read/28791462/dietary-total-antioxidant-capacity-is-inversely-associated-with-all-cause-and-cardiovascular-disease-death-of-us-adults
#15
Kijoon Kim, Terrence M Vance, Ming-Hui Chen, Ock K Chun
PURPOSE: Although evidence strongly supports that antioxidant-rich diets reduce risk of chronic disease and mortality, findings from the previous studies on the effect of individual antioxidants on mortality have been inconsistent. The aim of this study was to assess the relationship between dietary total antioxidant capacity (TAC) and all-cause and disease-specific mortality in a representative sample of the US population. METHODS: A total of 23,595 US adults aged 30 years and older in NHANES 1988-1994 and 1999-2004 were selected for this study...
August 8, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/28779945/cumulative-effects-of-single-tms-pulses-during-beta-tacs-are-stimulation-intensity-dependent
#16
Valerio Raco, Robert Bauer, Sandro Norim, Alireza Gharabaghi
BACKGROUND: Single transcranial magnetic stimulation (TMS) pulses activate different components of the motor cortex neural circuitry in a stimulation intensity-dependent way and may lead to a cumulative increase of corticospinal excitability (CSE) during the same stimulation session. Furthermore, transcranial alternating current stimulation (tACS) has been shown to increase in a frequency-specific way the level of CSE probed by single-pulse TMS. The interaction of these two phenomena, i...
July 27, 2017: Brain Stimulation
https://www.readbyqxmd.com/read/28777242/analysis-of-common-polymorphisms-within-nr1i2-and-nr1i3-genes-and-tacrolimus-dose-adjusted-concentration-in-stable-kidney-transplant-recipients
#17
Mateusz Kurzawski, Damian Malinowski, Krzysztof Dziewanowski, Marek Droździk
OBJECTIVES: Several genetic factors were identified to be responsible for interidividual variability in tacrolimus (TAC) pharmacokinetics, with the predominant role of CYP3A5 and CYP3A4 polymorphisms. In this study, genetic variants of NR1I2 and NR1I3 nuclear receptors (responsible for the regulation of drug-metabolizing enzymes and transporters at the transcriptional level) were evaluated for their potential association with altered TAC concentrations. MATERIALS AND METHODS: Two hundred and forty White kidney transplant patients were genotyped for five single-nucleotide polymorphisms (rs3814055, rs6785049, rs2276707, rs2307424, and rs2307418) in NR1I2 and NR1I3 genes...
August 2, 2017: Pharmacogenetics and Genomics
https://www.readbyqxmd.com/read/28777065/possible-role-of-antioxidative-capacity-of-epigallocatechin-3-gallate-treatment-in-morphological-and-neurobehavioral-recovery-after-sciatic-nerve-crush-injury
#18
Waleed M Renno, Ludmil Benov, Khalid M Khan
OBJECTIVE This study examined the capacity of the major polyphenolic green tea extract (-)-epigallocatechin-3-gallate (EGCG) to suppress oxidative stress and stimulate the recovery and prompt the regeneration of sciatic nerve after crush injury. METHODS Adult male Wistar rats were randomly assigned to one of 4 groups: 1) Naïve, 2) Sham (sham injury, surgical control group), 3) Crush (sciatic nerve crush injury treated with saline), and 4) Crush+EGCG (sciatic nerve crush injury treated with intraperitoneally administered EGCG, 50 mg/kg)...
August 4, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28773207/characterization-of-the-micro-abrasive-wear-in-coatings-of-tac-hfc-au-for-biomedical-implants
#19
Pablo Guzmán, Luis Yate, Mercy Sandoval, Jose Caballero, Willian Aperador
The object of this work was the deposition of a Ta-Hf-C thin film with a gold interlayer on stainless steel, via the physical vapor deposition (PVD) technique, in order to evaluate the properties of different systems subjected to micro-abrasive wear phenomena generated by alumina particles in Ringer's solution. The surface characterization was performed using a scanning electron microscope (SEM) and atomic force microscope (AFM). The crystallographic phases exhibited for each coating were obtained by X-ray diffraction (XRD)...
July 25, 2017: Materials
https://www.readbyqxmd.com/read/28772219/poly-d-l-lactide-co-glycolide-nanoparticles-for-sustained-release-of-tacrolimus-in-rabbit-eyes
#20
Mohd Abul Kalam, Aws Alshamsan
Tacrolimus (TAC)-loaded Ploy-lactide-co-glycolide nanoparticles (PLGA-NPs) was developed by emulsification-diffusion method for topical ocular delivery in certain ocular conditions where therapeutic level of immunomodulator into eyes is required for sufficient duration. So, we optimized TAC-loaded PLGA-NPs with higher TAC payload. The mean particle-size and its distribution, polydispersity, zeta-potentials, morphology, drug encapsulation and loading capacity of NPs were analyzed. Transcorneal permeation through excised rabbit cornea revealed instant and controlled permeation of TAC from TAC-aqueous suspension (TAC-AqS) and from PLGA-NPs, respectively...
July 31, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
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