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https://www.readbyqxmd.com/read/28433942/synthesis-and-characterization-of-poly-propylene-imine-dendrimer-grafted-gold-nanoparticles-as-nanocarriers-of-doxorubicin
#1
Marzieh Golshan, Mehdi Salami-Kalajahi, Mina Mirshekarpour, Hossein Roghani-Mamaqani, Maryam Mohammadi
The aim of current work is synthesis 4th-generation-poly(propylene imine) (PPI)-dendrimer modified gold nanoparticles (Au-G4A) as nanocarriers for doxorubicin (DOX) and studying in vitro drug release kinetics from nanocarriers into different media. Accordingly, AuNPs were synthesized by reduction of chloroauric acid (HAuCl4) aqueous solution with trisodium citrate and modified with cysteamine to obtain amine-functionalized (Au-NH2) nanoparticles. Au-NH2 nanoparticles were used as multifunctional cores and participated in Michael addition of acrylonitrile and reduction process by lithium aluminum hydride (LAH) to synthesize Au-G4A nanoparticles...
April 13, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28432945/exploring-isoxsuprine-hydrochloride-binding-with-human-serum-albumin-in-the-presence-of-folic-acid-and-ascorbic-acid-using-multispectroscopic-and-molecular-modeling-methods
#2
Fereshteh Shiri, Somaye Shahraki, Amin Shahriyar, Mostafa Heidari Majd
Isoxsuprine hydrochloride (vasodilator drug), folic acid and ascorbic acid are medicines which can be utilized alone or simultaneously by pregnant women. In the present work the competitive binding of isoxsuprine hydrochloride (ISO) with human serum albumin (HSA) in the absence and presence of folic acid (FOL) and ascorbic acid (AS) was investigated using different spectroscopic probes and molecular docking studies. The results of fluorescence suggested that isoxsuprine alone or in the presence of ascorbic acid can bind to HSA and quench the fluorescence of HSA with static mechanism but For HSA-folic acid-isoxsuprine system, dynamic type of quenching mechanisms is involved...
April 11, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28432198/folate-dependent-methylation-of-septins-governs-ciliogenesis-during-neural-tube-closure
#3
Manami Toriyama, Michinori Toriyama, John B Wallingford, Richard H Finnell
Periconception maternal folic acid (vitamin B9) supplementation can reduce the prevalence of neural tube defects (NTDs), although just how folates benefit the developing embryo and promote closing of the neural tube and other morphologic processes during development remains unknown. Folate contributes to a 1-carbon metabolism, which is essential for purine biosynthesis and methionine recycling and affects methylation of DNA, histones, and nonhistone proteins. Herein, we used animal models and cultured mammalian cells to demonstrate that disruption of the methylation pathway mediated by folate compromises normal neural tube closure (NTC) and ciliogenesis...
April 21, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28430082/a-community-based-survey-on-syrian-refugee-women-s-health-and-its-predictors-in-%C3%A5-anliurfa-turkey
#4
Zeynep Simsek, Nebiye Yentur Doni, Nese Gül Hilali, Gokhan Yildirimkaya
Reproductive characteristics, mental health symptoms, micronutrient deficiencies, and symptoms of sexually transmitted infections (STI) were determined among married Syrian refugee women aged 15-49 years who were living outside of camps in 2015, using probability sampling. Of the 458 participants, 51.3% married before the age of 18 years. Early-age marriages and number of desired children increased after the war. In multivariable analyses, education (adjusted odds ratio [aOR] = 1.2; 95% confidence interval [CI] = 1...
April 21, 2017: Women & Health
https://www.readbyqxmd.com/read/28425110/neural-tube-defects-risk-factors-and-preventive-measures
#5
REVIEW
Atsuo Kondo, Takuya Matsuo, Nobuhito Morota, Atsuya S Kondo, Ikuyo Okai, Hiromi Fukuda
For the last 25 years, it has been proven that the occurrence or recurrence of neural tube defects can be prevented with the administration of folic acid before and early pregnancy. At present, over 80 countries in the world, except Japan, have mandated the fortification of wheat flour and/or rice with folic acid, which has resulted in a significant reduction in the prevalence of neural tube defects. In 2000, the Japanese government recommended folic acid 400 µg daily for young women of childbearing age and women who are planning to conceive...
April 19, 2017: Congenital Anomalies
https://www.readbyqxmd.com/read/28424329/a-paternal-diet-for-offspring-success
#6
Christopher Hine
Supplementation of the diet of male mice with methyl donors, such as methionine and folic acid, prior to mating impaired learning, memory, and metabolic functions in the offspring.
April 19, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28423206/folic-acid-who-does-what-with-methotrexate
#7
A Randhawa, R Blair, G Wylie
Methotrexate is a folic acid derivative that inhibits dihydrofolate reductase which has effects on DNA synthesis and cellular replication. In Dermatology, it is licensed for use in recalcitrant psoriasis but is also used off-label in many other conditions.(1) It is given either orally or by subcutaneous injection. Folic acid is usually prescribed alongside methotrexate but there is often variation in prescribing practice. This article is protected by copyright. All rights reserved.
April 17, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28422052/folic-acid-reduces-tau-phosphorylation-by-regulating-pp2a-methylation-in-streptozotocin-induced-diabetic-mice
#8
Miaoyan Zheng, Chen Zou, Mengyue Li, Guowei Huang, Yuxia Gao, Huan Liu
High incidence rate of Alzheimer's disease (AD) is observed in patients with type 2 diabetes. Aggregated β-amyloid (Aβ) and hyperphosphorylated tau are the hallmarks of AD. Hyperphosphorylated tau has been detected in diabetic animals as well as in diabetic patients. Folates mediate the transfer of one carbon unit, required in various biochemical reactions. The effect of folate on tau phosphorylation in diabetic models still remains unknown. In this study, we investigated the effect and mechanism of folic acid on hyperphosphorylation of tau in streptozotocin (STZ)-induced diabetic mice...
April 19, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28421540/maternal-folic-acid-supplementation-during-pregnancy-improves-neurobehavioral-development-in-rat-offspring
#9
Xinyan Wang, Wen Li, Shou Li, Jing Yan, John X Wilson, Guowei Huang
Maternal folate status during pregnancy may influence central nervous system (CNS) development in offspring. However, the recommended intakes of folic acid for women of childbearing age differ among countries and there is still no consensus about whether folic acid should be supplemented continuously throughout pregnancy. We hypothesized that folic acid supplementation may be more beneficial for offspring's neurobehavioral development if prolonged throughout pregnancy instead of being limited to the periconceptional period...
April 18, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28420213/folate-decorated-nanomicelles-loaded-with-a-potent-curcumin-analogue-for-targeting-retinoblastoma
#10
Hashem Alsaab, Rami M Alzhrani, Prashant Kesharwani, Samaresh Sau, Sai Hs Boddu, Arun K Iyer
The aim of this study was to develop a novel folate receptor-targeted drug delivery system for retinoblastoma cells using a promising anticancer agent, curcumin-difluorinated (CDF), loaded in polymeric micelles. Folic acid was used as a targeting moiety to enhance the targeting and bioavailability of CDF. For this purpose, amphiphilic poly(styrene-co-maleic acid)-conjugated-folic acid (SMA-FA) was synthesized and utilized to improve the aqueous solubility of a highly hydrophobic, but very potent anticancer compound, CDF, and its targeted delivery to folate overexpressing cancers...
April 18, 2017: Pharmaceutics
https://www.readbyqxmd.com/read/28418800/predictors-of-breastfeeding-initiation-and-maintenance-in-an-integrated-healthcare-setting
#11
Michelle L Henninger, Stephanie A Irving, Tia L Kauffman, Samantha K Kurosky, Kathryn Rompala, Mark G Thompson, Leslie Z Sokolow, Lyndsay Ammon Avalos, Sarah W Ball, Pat Shifflett, Allison L Naleway
BACKGROUND: The American Academy of Pediatrics recommends exclusive breastfeeding to age 6 months. Although breastfeeding rates in the United States have been increasing over time, further improvements are needed to meet Healthy People 2020 targets. Research aim: This study examined predictors of breastfeeding initiation and maintenance among a population of insured pregnant women. METHODS: Participants were 1,149 pregnant women enrolled in the Pregnancy and Influenza Project in two Kaiser Permanente regions in 2010-2011...
May 2017: Journal of Human Lactation: Official Journal of International Lactation Consultant Association
https://www.readbyqxmd.com/read/28418068/recombinant-overexpression-of-dihydroneopterin-aldolase-catalyst-potentially-regulates-folate-biofortification
#12
Dhananjay K Pandey, Atul Kumar, Jitendra S Rathore, Nagendra Singh, Bhupendra Chaudhary
We aim to investigate the prospects of increased production of folate through the overexpression of heterologous dihydroneopterin aldolase catalyst. The gene encoding aldolase catalyst was cloned into an expression vector and the induced recombinant protein was purified through metal-affinity chromatography which appeared at 14 kDa position on polyacrylamide-gel. Remarkably, a periodic increase in the extracellular and intracellular folic acid concentration was observed at 4 h growth of induced recombinant DHNA samples than control in a pH-dependent manner...
April 18, 2017: Journal of Basic Microbiology
https://www.readbyqxmd.com/read/28417924/novel-nano-therapeutic-approach-actively-targets-human-ovarian-cancer-stem-cells-after-xenograft-into-nude-mice
#13
Amoura Abou-ElNaga, Ghada Mutawa, Ibrahim M El-Sherbiny, Hassan Abd-ElGhaffar, Ahmed A Allam, Jamaan Ajarem, Shaker A Mousa
The power of tumorigenesis, chemo-resistance and metastasis in malignant ovarian tumors resides in a tiny population of cancer cells known as ovarian cancer stem cells (OCSCs). Developing nano-therapeutic targeting of OCSCs is considered a great challenge. The potential use of poly(lactic-co-glycolic acid) nanoparticles (PLGA NPs) was investigated as a drug delivery system for paclitaxel (PTX) against OCSCs in vitro and in vivo. PTX-loaded PLGA NPs were prepared by an emulsion solvent evaporation method, supported by incorporation of folic acid (FA) as the ligand...
April 12, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28417148/relationship-between-nutritional-factors-and-hip-bone-density-in-individuals-with-chronic-stroke
#14
Samuel K Y Li, Mabel M P Wan, Frankie P L Siu, Susan Chung, Marco Y C Pang
The aim of this study was to investigate the relationship between dietary habits and hip bone health in community-dwelling individuals with chronic stroke. The usual dietary intake of 94 individuals with chronic stroke (30 women, mean age: 59.0 years) was assessed by a 3-day food record within a single week. Dual-energy X-ray absorptiometry was used to measure bone mineral density (BMD) at both hips. The results showed that low hip bone mass was found in 59 and 50 of the participants on the affected and unaffected side, respectively...
April 17, 2017: Calcified Tissue International
https://www.readbyqxmd.com/read/28416865/folic-acid-content-and-antioxidant-activity-of-different-types-of-beers-available-in-hungarian-retail
#15
Dániel Koren, Csaba Orbán, Nóra Galló, Szilárd Kun, Beáta Vecseri-Hegyes, Gabriella Kun-Farkas
In this study 40 Hungarian retail beers were evaluated for folic acid content, antioxidant profile and physicochemical parameters. The physicochemical parameters, folic acid content and antioxidant activity of alcohol-free beers were the lowest. Folic acid content of beers aged with sour cherries showed high values, more than 0.4 mg/l and an alcohol-free beer-based mixed drink made with lemon juice contained more than 0.2 mg/l of folic acid. Dark beers and beers aged with sour cherries had the highest antioxidant activity probably owing to their high extract content, components released from the fruits and special malts...
April 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28415584/folic-acid-phenotype-fap-is-a-superior-biomarker-predicting-response-to-pemetrexed-based-chemotherapy-in-malignant-pleural-mesothelioma
#16
Fabian Dominik Mairinger, Claudia Vollbrecht, Elena Flom, Daniel Christian Christoph, Kurt-Werner Schmid, Jens Kollmeier, Helmut Hans Popper, Thomas Mairinger, Robert Fred Henry Walter
BACKGROUND: Malignant pleural mesothelioma (MPM) is a rare tumor linked to a dismal prognosis. Even the most effective chemotherapeutical regime of pemetrexed combined with cisplatin leads to a remission-rate of only about 40%. The reasons for the rather poor efficacy remain largely unknown. RESULTS: Phenotypes were significantly associated with progression (p=0.0279) and remission (p=0.0262). Cox-regression revealed significant associations between SLC19A1/TYMS-ratio (p=0...
March 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/28415531/new-synthesis-of-poly-ortho-methoxyaniline-nanostructures-and-its-application-to-construct-modified-multi-wall-carbon-nanotube-graphite-paste-electrode-for-simultaneous-determination-of-uric-acid-and-folic-acid
#17
Hossein Rajabi, Meissam Noroozifar
Uric acid (UA) and folic acid (FA) are compounds of biomedical interest. In humans, about 70% of daily uric acid disposal occurs via the kidneys, and in 5-25% of humans, impaired renal (kidney) excretion leads to hyperuricemia. Folate is another form folic acid of which is known as, is one of the B vitamins. It is used as a supplement by women to prevent neural tube defects developing during pregnancy. Polyortho-methoxyaniline nanostructures (POMANS) was synthesized with a new two phase (organic-water) synthesis method...
June 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28415519/fabrication-of-thermal-sensitive-folic-acid-based-supramolecular-hybrid-gels-for-injectable-drug-release-gels
#18
Yahui Song, Jianping Gao, Xiaoyang Xu, Huilin Zhao, Ruinan Xue, Jingkuo Zhou, Wei Hong, Haixia Qiu
Thermal sensitive supramolecular hybrid gels for injectable drug release were prepared by adding different amounts of agar into folic acid (FA) gelator. The gelation temperature was modulated in order to form injectable gel with body temperature (37°C). Such kind of folic acid-agar (FAG) hybrid gel makes it possible to use supramolecular gel as injectable drug loaded gels for drug release. FT-IR and UV-vis spectra indicate that agar macromolecules involve in the self-assembly process through intermolecular H-bonding and π-π stacking interactions with FA molecules...
June 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28415453/role-of-generation-on-folic-acid-modified-poly-amidoamine-dendrimers-for-targeted-delivery-of-baicalin-to-cancer-cells
#19
Tingting Lv, Tingting Yu, Yunpeng Fang, Suyan Zhang, Minghong Jiang, Huijuan Zhang, Yingying Zhang, Ziying Li, Haijun Chen, Yu Gao
Baicalin (BAI) has been reported to exert antitumor effects. However, BAI has limited water solubility, non-specific tumor targeting, and low bioavailability, which severely limited its clinical application. The aim of this study was to develop folic acid (FA) covalently conjugated-polyamidoamine (PAMAM) dendrimers (PAMAM-FA) as carrier systems for improvement of water solubility and tumor-specificity of BAI, and study the role of generation on the physiochemical properties and biological effects of PAMAM-FA/BAI complexes...
June 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28409385/the-effect-of-dietary-folic-acid-on-biochemical-parameters-and-gene-expression-of-three-heat-shock-proteins-hsps-of-blunt-snout-bream-megalobrama-amblycephala-fingerling-under-acute-high-temperature-stress
#20
Daniella Fatmata Sesay, Habte-Michael Habte-Tsion, Qunlan Zhou, Mingchun Ren, Jun Xie, Bo Liu, Ruli Chen, Liangkun Pan
The effects of dietary folic acid on biochemical parameters and gene expression of three heat shock proteins (HSPs) of blunt snout bream (Megalobrama amblycephala) fingerling under acute high temperature stress. Six dietary folic acid groups (0.0, 0.5, 1.0, 2.0, 5.0, and 10.0) mg/kg diets were designed and assigned into 18 tanks in three replicates each (300 l/tank) and were administered for 10 weeks in a re-circulated water system. The fingerlings with an initial weight of 27.0 ± 0.03 g were fed with their respective diets four times daily...
April 13, 2017: Fish Physiology and Biochemistry
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