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https://www.readbyqxmd.com/read/28918472/a-reliable-protocol-for-colorimetric-determination-of-iron-oxide-nanoparticle-uptake-by-cells
#1
Daiana K Deda, Roberta M Cardoso, Mayara K Uchiyama, Christiane Pavani, Sergio H Toma, Mauricio S Baptista, Koiti Araki
Size, shape, and surface properties of superparamagnetic iron oxide nanoparticles (SPIONs) can influence their interaction with biological systems, particularly the incorporation by tumor cells and consequently the biological activity and efficiency in biomedical applications. Several strategies have been used to evaluate cellular uptake of SPIONs. While qualitative methods are generally based on microscopy techniques, quantitative assays are carried out by techniques such as inductively coupled plasma-mass spectrometry and flow cytometry...
September 16, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28917233/high-prevalence-of-vitamin-b-12-insufficiency-in-patients-with-crohn-s-disease
#2
Misora Ao, Hidemi Tsuji, Kenichiro Shide, Yuki Kosaka, Akari Noda, Nobuya Inagaki, Hiroshi Nakase, Kiyoshi Tanaka
BACKGROUND AND OBJECTIVES: In Crohn's disease (CD), belonging to inflammatory bowel disease, the small intestine is involved in most cases. Most frequently affected is the distal ileum, where vitamin B-12 is specifically absorbed. Therefore, malabsorption of vitamin B-12 is quite likely to occur in patients with CD. In this study, we have studied the vitamin B-12 status in CD patients. METHODS AND STUDY DESIGN: Forty eight patients with CD were evaluated for their food intake, and circulating concentrations of vitamin B-12, folic acid, and homocysteine (Hcy) as a sensitive marker for the insufficiency of these vitamins and a risk factor of atherosclerosis...
2017: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28914298/folic-acid-on-iron-oxide-nanoparticles-platform-with-high-potential-for-simultaneous-targeting-mri-detection-and-hyperthermia-treatment-of-lymph-node-metastases-of-prostate-cancer
#3
Debora Bonvin, Jessica A M Bastiaansen, Matthias Stuber, Heinrich Hofmann, Marijana Mionić Ebersold
The overexpression of the folate receptor in most cancers has been widely exploited to specifically deliver folic acid (FA) coupled nanomedicines to tumors. However, complex coupling chemistry is often used to bind FA to the nanoparticles. Furthermore, very little has been reported for the targeting of nanomedicines to lymph node metastases (LNMs) of prostate cancer. We here report the simple and aqueous coating of iron oxide nanoparticles (IONPs) with FA for theranostics of LNMs of prostate cancer. FA was directly bound to the IONPs' surface without the use of any linker, simultaneously playing the role of the coating molecule and targeting agent...
September 15, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28912716/a-meta-analysis-of-folic-acid-in-combination-with-anti-hypertension-drugs-in-patients-with-hypertension-and-hyperhomocysteinemia
#4
REVIEW
Wen-Wen Wang, Xin-Shi Wang, Zeng-Rui Zhang, Jin-Cai He, Cheng-Long Xie
Folic acid is generally used to lower homocysteine concentrations and prevent stroke and cardiovascular disease (CVD) at present. However, the efficacy of therapies that lower homocysteine concentrations in reducing the risk of CVD and stroke remains controversial. Our objective was to do a meta-analysis of relevant randomized controlled trials (RCTs) to evaluate the efficacy of folic acid supplementation among patients with hypertension and Hyperhomocysteinemia (HT/HHcy). We included RCTs examining the effects of folic acid plus antihypertensive therapy compared to antihypertensive alone...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28910944/-association-between-periconceptional-folic-acid-supplementation-and-small-for-gestational-age-birth-based-on-pre-pregnancy-body-mass-index
#5
L L Guo, J X Shen, S H Ru, Y Wang, M Li, Y L Feng, P Zhang, W W Wu, S P Wang, Y W Zhang, H L Yang
Objective: To investigate the association between periconceptional folic acid supplementation and small for gestational age (SGA) birth based on maternal pre-pregnancy body mass index (BMI) and provide evidence for the development of comprehensive prevention programs on SGA birth. Methods: Between March, 2012 and September, 2016, a total of 8 523 pregnant women delivering in the First Affiliated Hospital of Shanxi Medical University were surveyed to collect the information about their demographic characteristics, folic acid supplementation before and during pregnancy and about their infants...
September 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28906345/folic-acid-exerts-antidepressant-effects-by-upregulating-brain-derived-neurotrophic-factor-and-glutamate-receptor-1-expression-in-brain
#6
Liangcai Gao, Xinnan Liu, Li Yu, Junlin Wu, Mingchu Xu, Yusi Liu
Folic acid is a vitamin with a variety of pharmacological effects. The present study aims to explore the beneficial effects of folic acid on chronic unpredictable mild stress (CUMS)-induced depression-like behaviors and its possible mechanisms. The behavioral tests including open-field test, tail suspension test, and forced swimming test were used to evaluate the antidepressant effects of folic acid. Then the changes of brain 5-hydroxytryptamine (5-HT) concentration, brain-derived neurotrophic factor (BDNF), glutamate receptor 1 (GluR1) expression levels, and synaptic organization were assessed to explore the antidepressant mechanisms of folic acid...
September 12, 2017: Neuroreport
https://www.readbyqxmd.com/read/28904935/evaluation-of-dietary-intakes-body-composition-and-cardiometabolic-parameters-in-adolescent-team-sports-elite-athletes-a-cross-sectional-study
#7
Javad Hosseinzadeh, Zahra Maghsoudi, Behnood Abbasi, Pooya Daneshvar, Atefeh Hojjati, Reza Ghiasvand
BACKGROUND: Nutritional intake is an important issue in adolescent athletes. Proper athletes' performance is a multifactorial outcome of good training, body composition, and nutritional status. The aim of the present study was to assess nutritional status, body composition, and cardiometabolic factors in adolescent elite athlete's province of Isfahan, Iran. MATERIALS AND METHODS: In this cross-sectional study, 100 adolescent elite athletes from volleyball, basketball, and soccer teams were selected for the study...
2017: Advanced Biomedical Research
https://www.readbyqxmd.com/read/28904497/the-effect-of-metformin-treatment-on-the-serum-levels-of-homocysteine-folic-acid-and-vitamin-b12-in-patients-with-polycystic-ovary-syndrome
#8
Sedigheh Esmaeilzadeh, Maryam Gholinezhad-Chari, Reza Ghadimi
BACKGROUND AND OBJECTIVE: Hyperhomocysteinemia is a well-known risk factor for cardiovascular disease. Although metformin therapy can increase homocysteine (Hcy) levels, it frequently is used as an oral medicine in women with polycystic ovary syndrome (PCOS), who might be at risk of catching diabetes mellitus. The aim of this study was to investigate the effect of metformin on the levels of serum Hcy, vitamin B12 (vit B12), and folic acid in patients with PCOS. MATERIALS AND METHODS: An interventional study was designed with 18 patients with PCOS at the Fatemehzahra infertility Hospital in Babol, Iran...
April 2017: Journal of Human Reproductive Sciences
https://www.readbyqxmd.com/read/28904114/the-lives-saved-tool-list-as-a-model-for-prevention-of-anemia-in-women-of-reproductive-age
#9
REVIEW
Rebecca Heidkamp, Renee Guida, Erica Phillips, Adrienne Clermont
Background: Anemia in women is a major public health burden worldwide, particularly in low- and middle-income countries (LMICs). It is a complex condition with multiple nutritional and non-nutritional causes, and geographic heterogeneity of burden. The World Health Assembly has set a target of a 50% reduction in anemia among women of reproductive age (WRA) by 2025.Objective: This article seeks to identify the leading causes of anemia among women in LMICs, review the evidence supporting interventions to address anemia in these settings, and ultimately use this information to decide which interventions should be included in the Lives Saved Tool (LiST) model of anemia...
September 13, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28904112/modeling-the-impact-of-nutrition-interventions-on-birth-outcomes-in-the-lives-saved-tool-list
#10
REVIEW
Rebecca Heidkamp, Adrienne Clermont, Erica Phillips
Background: Negative birth outcomes [small-for-gestational age (SGA) and preterm birth (PTB)] are common in low- and middle-income countries and have important subsequent health and developmental impacts on children. There are numerous nutritional and non-nutritional interventions that can decrease the risk of negative birth outcomes and reduce subsequent risk of mortality and growth faltering.Objective: The objective of this article was to review the current evidence for the impact of nutritional interventions in pregnancy [calcium supplementation, iron and folic acid supplementation, multiple micronutrient (MMN) supplementation, and balanced energy supplementation (BES)] and risk factors (maternal anemia) on birth outcomes, with the specific goal of determining which intervention-outcome linkages should be included in the Lives Saved Tool (LiST) software...
September 13, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28903160/safety-of-systemic-agents-for-the-treatment-of-pediatric-psoriasis
#11
Inge M G J Bronckers, Marieke M B Seyger, Dennis P West, Irene Lara-Corrales, Megha Tollefson, Wynnis L Tom, Marcia Hogeling, Leah Belazarian, Claus Zachariae, Emmanuel Mahé, Elaine Siegfried, Sandra Philipp, Zsuzsanna Szalai, Ruth Ann Vleugels, Kristen Holland, Ruth Murphy, Eulalia Baselga, Kelly Cordoro, Jo Lambert, Alex Alexopoulos, Ulrich Mrowietz, Wietske Kievit, Amy S Paller
Importance: Use of systemic therapies for moderate to severe psoriasis in children is increasing, but comparative data on their use and toxicities are limited. Objective: To assess patterns of use and relative risks of systemic agents for moderate to severe psoriasis in children. Design, Setting, and Participants: A retrospective review was conducted at 20 centers in North America and Europe, and included all consecutive children with moderate to severe psoriasis who used systemic medications or phototherapy for at least 3 months from December 1, 1990, to September 16, 2014...
September 13, 2017: JAMA Dermatology
https://www.readbyqxmd.com/read/28902145/replacing-american-breakfast-foods-with-ready-to-eat-rte-cereals-increases-consumption-of-key-food-groups-and-nutrients-among-us-children-and-adults-results-of-an-nhanes-modeling-study
#12
Colin D Rehm, Adam Drewnowski
Replacing the typical American breakfast with ready-to-eat cereals (RTECs) may improve diet quality. Our goal was to assess the impact of RTECs on diet quality measures for different age groups, using substitution modeling. Dietary intakes came from the 2007-2010 National Health and Examination Surveys (NHANES; n = 18,112). All breakfast foods, excluding beverages, were replaced on a per calorie basis, with frequency-weighted and age/race specific RTECs. Model 1 replaced foods with RTECs alone; Model 2 replaced foods with RTECs and milk...
September 13, 2017: Nutrients
https://www.readbyqxmd.com/read/28901564/synthesis-and-evaluation-of-68-ga-hbed-cc-edbe-folate-for-pet-imaging-of-over-expressed-folate-receptors-on-ct-26-tumor-cells
#13
Pyeong Seok Choi, Jun Young Lee, Joung Hoon Park, Sang Wook Kim
(68) Ga is a positron-emitting radionuclide that can be combined with bifunctional chelating agents and bioactive substances for use as positron-emission tomography (PET) diagnostic agents. HBED-CC is an acyclic chelating agent that is rapidly labeled with (68) Ga under mild conditions. To target cancer cells, bioactive substances can be conjugated to the carboxyl terminus of HBED-CC. Because folic acid strongly binds to folate receptors that are overexpressed on the surfaces of many types of cancer cells, it was coupled with HBED-CC through a small polyethylene glycol-based linker (EDBE) to generate an active, receptor-selective targeting system...
September 13, 2017: Journal of Labelled Compounds & Radiopharmaceuticals
https://www.readbyqxmd.com/read/28898908/influence-of-high-dose-folic-acid-on-methotrexate-efficacies-and-safety-in-japanese-rheumatoid-arthritis-patients
#14
Shun Kameyama, Yuko Kase, Saori Kurihara, Fumiko Yoshida, Masamitu Noda, Toshimi Iiduka, Masami Horiguchi, Kentaro Sugiyama, Toshihiko Hirano
Backgrounds Folic acid dose at ≦5 mg/week has been recommended for rheumatoid arthritis (RA) patients to decrease risk of methotrexate adverse effects. However, higher doses of folic acid is used in some cases. We examined the influence of high-dose folic acid on methotrexate efficacies and safety in Japanese RA patients. Methods 502 RA patients of four hospitals prescribed methotrexate and folic acid were included. These patients were divided into two subgroups according to the threshold of folic acid dose by 5 mg/week...
September 12, 2017: Drug Research
https://www.readbyqxmd.com/read/28895788/association-between-serum-unmetabolized-folic-acid-concentrations-and-folic-acid-from-fortified-foods
#15
Cecília Zanin Palchetti, Clóvis Paniz, Eduardo de Carli, Dirce M Marchioni, Célia Colli, Josiane Steluti, Christine M Pfeiffer, Zia Fazili, Elvira Maria Guerra-Shinohara
OBJECTIVE: To investigate the association between serum unmetabolized folic acid (UMFA) concentrations and folic acid from fortified foods and nutrients known as dietary methyl-group donors (folate, methionine, choline, betaine and vitamins B2, B6 and B12) in participants exposed to mandatory fortification of wheat and maize flours with folic acid. METHODS: Cross-sectional study carried out with 144 healthy Brazilian participants, both sexes, supplement nonusers...
September 12, 2017: Journal of the American College of Nutrition
https://www.readbyqxmd.com/read/28894871/correction-folic-acid-functionalized-up-conversion-nanoparticles-toxicity-studies-in-vivo-and-in-vitro-and-targeted-imaging-applications
#16
Lining Sun, Zuwu Wei, Haige Chen, Jinliang Liu, Jianjian Guo, Ming Cao, Tieqiao Wen, Liyi Shi
Correction for 'Folic acid-functionalized up-conversion nanoparticles: toxicity studies in vivo and in vitro and targeted imaging applications' by Lining Sun et al., Nanoscale, 2014, 6, 8878-8883.
September 12, 2017: Nanoscale
https://www.readbyqxmd.com/read/28891336/polyunsaturated-fatty-acid-based-targeted-nanotherapeutics-to-enhance-the-therapeutic-efficacy-of-docetaxel
#17
Thiruganesh Ramasamy, Pasupathi Sundaramoorthy, Hima Bindu Ruttala, Yongjoo Choi, Woo Hyun Shin, Jee-Heon Jeong, Sae Kwang Ku, Han-Gon Choi, Hwan Mook Kim, Chul Soon Yong, Jong Oh Kim
Since breast cancer is one of the most lethal malignancies, targeted strategies are urgently needed. In this study, we report the enhanced therapeutic efficacy of docetaxel (DTX) when combined with polyunsaturated fatty acids (PUFA) for effective treatment of multi-resistant breast cancers. Folic acid (FA)-conjugated PUFA-based lipid nanoparticles (FA-PLN/DTX) was developed. The physicochemical properties, in vitro uptake, in vitro cytotoxicity, and in vivo anticancer activity of FA-PLN/DTX were evaluated. FA-PLN/DTX could efficiently target and treat human breast tumor xenografts in vivo...
November 2017: Drug Delivery
https://www.readbyqxmd.com/read/28888001/a-targeted-nanocarrier-based-on-polyspermine-for-the-effective-delivery-of-methotrexate-in-nasopharyngeal-carcinoma
#18
Xin Ji, Huilong Guo, Qiao Tang, Dong Ma, Wei Xue
Antitumor efficacy of methotrexate (MTX) is seriously limited due to its poor water solubility, nonspecific tumor distribution and low bioavailability. To overcome these obstacles, polyspermine (PSP) conjugated with MTX and folic acid (FA) as a novel targeted prodrug was designed and has been successfully synthesized using the amidation reaction. The strong hydrophilic properties of PSP made MTX well dispersed in water and the cellular uptake study indicated that the presence of FA enhanced uptake of the FA-PSP-MTX in folate receptor (FR) over-expressing human nasopharyngeal carcinoma HNE-1 cells...
December 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28887720/early-folic-acid-supplement-initiation-and-risk-of-adverse-early-childhood-respiratory-health-a-population-based-study
#19
Vivian H Alfonso, Gretchen Bandoli, Ondine von Ehrenstein, Beate Ritz
Objectives Folate plays a vital role in biologic functions yet women often do not meet the recommended dietary intake in pregnancy. It has been suggested that high folic acid intake during pregnancy may increase the risk of respiratory diseases in offspring. However, findings from observational studies in human populations are inconclusive. Methods In this population-based study, we collected self-reported folic acid and prenatal vitamin supplement use during pregnancy 3-6 months postpartum from mothers in Los Angeles whose children were born in 2003...
September 8, 2017: Maternal and Child Health Journal
https://www.readbyqxmd.com/read/28885600/a-cross-sectional-study-of-dietary-and-genetic-predictors-of-blood-folate-levels-in-healthy-young-adults
#20
Daniel Cummings, Kevin F Dowling, Noah J Silverstein, Alexandra S Tanner, Hamdi Eryilmaz, Jordan W Smoller, Joshua L Roffman
Since 1998, the U.S. has mandated folic acid (FA) fortification of certain grain products to reduce the risk of neural tube defects. Folate intake and red blood cell (RBC) folate concentrations increased substantially post-intervention, although recent studies raise concerns about the level of ongoing benefit. This study investigated blood folate level determinants in healthy young adults, including intake of naturally occurring food folate, synthetic FA, and the interaction of naturally occurring food folate with a common missense variant in the FOLH1 gene thought to affect absorption...
September 8, 2017: Nutrients
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