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https://www.readbyqxmd.com/read/29774505/mitigating-peroxynitrite-mediated-mitochondrial-dysfunction-in-aged-rat-brain-by-mitochondria-targeted-antioxidant-mitoq
#1
Arpan Kumar Maiti, B C Spoorthi, Nimai Chandra Saha, Ashis Kumar Panigrahi
Although reactive oxygen species mediated oxidative stress is a well-documented mechanism of aging, recent evidences indicate involvement of nitrosative stress in the same. As mitochondrial dysfunction is considered as one of the primary features of aging, the present study was designed to understand the involvement of nitrosative stress by studying the impact of a mitochondria-targeted antioxidant MitoQ, a peroxynitrite (ONOO- ) scavenger, on mitochondrial functions. Four groups of rats were included in this study: Group I: Young-6 months (-MitoQ), Group II: Aged-22 months (- MitoQ), Group III: Young-6 months (+ MitoQ), Group IV: Aged-22 months (+ MitoQ)...
May 17, 2018: Biogerontology
https://www.readbyqxmd.com/read/29773184/oral-administration-of-cadmium-depletes-intratesticular-and-epididymal-iron-levels-and-inhibits-lipid-peroxidation-in-the-testis-and-epididymis-of-adult-rats
#2
Sunny O Abarikwu, Sarah Oruitemeka, Ifeyinwa A Uwadileke, Stephen I Omeodu, Ngozi F Okoye, Chidimma J Mgbudom-Okah, Robinson Ohanador
Cadmium (Cd)-induced tissue injury depends on the accumulated Cd which differentially affects endogenous iron (Fe). To investigate this, adult rats were treated by oral gavage with Cd (50 mg/kg body wt.) once a week for 15, 30 and 60 days and sacrificed a day after last administration. After the 15th and 30th day of treatment, Cd had no effect on thiobarbituric acid reactive substances (TBARS) and endogenous Fe levels but exhibited anti-androgenic effects (p < 0.05) and caused histological damages...
July 2018: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/29761371/tolerability-and-efficacy-of-deferasirox-in-patients-with-transfusional-iron-overload-results-from-a-german-2-year-non-interventional-study
#3
Florian Nolte, Holger Nückel, Burkhard Schmidt, Thomas Geer, Oleg Rubanov, Holger Hebart, Andrea Jarisch, Stefan Albrecht, Christiane Johr, Christiane Schumann, Wolf-Karsten Hofmann
BACKGROUND: Iron overload (IOL) due to repetitive transfusions of packed red blood cells (pRBC) has a major impact on morbidity and mortality in patients with inherited bone marrow failure syndromes and hemoglobinopathies such as thalassemia and sickle cell disease. However, whether IOL influences the outcome of elderly patients with myeloid malignancies is not yet clear. Moreover, clinical trials have reported high drop-out rates during treatment with the oral iron chelator deferasirox (DFX)...
May 14, 2018: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/29761147/efficacy-of-long-term-oral-vitamin-b12-supplementation-after-total-gastrectomy-results-from-a-prospective-study
#4
Joana Moleiro, Susana Mão de Ferro, Sara Ferreira, Miguel Serrano, Margarida Silveira, António Dias Pereira
Background/Objectives: Vitamin B12 (VB12) deficiency is a common complication after total gastrectomy which may be associated with megaloblastic anemia and potentially irreversible neurologic symptoms. Intramuscular supplementation of VB12 has been considered the standard treatment, although it is associated with high costs and patient discomfort. Patients/Methods: We performed a prospective uncontrolled study (ACTRN12614000107628) in order to evaluate the clinical and laboratory efficacy of long-term oral VB12 supplementation in patients submitted to total gastrectomy...
April 2018: GE Portuguese Journal of Gastroenterology
https://www.readbyqxmd.com/read/29760784/practical-guidance-for-the-management-of-iron-deficiency-in-patients-with-inflammatory-bowel-disease
#5
REVIEW
Dorothea Niepel, Thomas Klag, Nisar P Malek, Jan Wehkamp
Iron deficiency or iron deficiency anemia (IDA) are some of the most common systemic complications of inflammatory bowel diseases (IBD). Symptoms such as fatigue, reduced ability to concentrate and reduced exercise tolerance can mimic common symptoms of IBD and can therefore easily be overseen. Furthermore, clinicians tend to see mild to moderate anemia as an inevitable accompaniment of IBD that is sufficiently explained by the underlying disease and does not require further workup. But in contrast to these clinical routines, current guidelines recommend that any degree of anemia in patients with IBD should be further evaluated and treated...
2018: Therapeutic Advances in Gastroenterology
https://www.readbyqxmd.com/read/29760547/comparison-of-the-effects-of-deferasirox-deferoxamine-and-combination-of-deferasirox-and-deferoxamine-on-an-aplastic-anemia-mouse-model-complicated-with-iron-overload
#6
Dijiong Wu, Xiaowen Wen, Wenbin Liu, Huijin Hu, Baodong Ye, Yuhong Zhou
Background and aim: Iron overload is commonly observed during the course of aplastic anemia (AA), which is believed to aggravate hematopoiesis, cause multiple organ dysfunction, lead to disease progression, and impair quality of life. Deferasirox (DFX) and deferoxamine (DFO) are among the most common iron chelation agents available in the clinical setting. The aim of this study was to investigate if the combination therapy with DFX and DFO is superior in hematopoietic recovery and iron chelation...
2018: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/29756335/treatment-of-restless-legs-syndrome-evidence-based-review-and-implications-for-clinical-practice-revised-2017-%C3%A2
#7
REVIEW
Juliane Winkelmann, Richard P Allen, Birgit Högl, Yuichi Inoue, Wolfgang Oertel, Aaro V Salminen, John W Winkelman, Claudia Trenkwalder, Cristina Sampaio
The objective of the current review was to update the previous evidence-based medicine review of treatments for restless legs syndrome published in 2008. All randomized, controlled trials (level I) with a high quality score published between January 2007 and January 2017 were reviewed. Forty new studies qualified for efficacy review. Pregabalin, gabapentin enacarbil, and oxycodone/naloxone, which did not appear in the previous review, have accrued data to be considered efficacious. Likewise, new data enable the modification of the level of efficacy for rotigotine from likely efficacious to efficacious...
May 14, 2018: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/29754836/misoprostol-for-small-bowel-ulcers-in-patients-with-obscure-bleeding-taking-aspirin-and-non-steroidal-anti-inflammatory-drugs-masters-a-randomised-double-blind-placebo-controlled-phase-3-trial
#8
Ali S Taha, Caroline McCloskey, Paula McSkimming, Alex McConnachie
BACKGROUND: The incidence of obscure gastrointestinal bleeding, which originates from the small bowel and is mainly associated with the use of aspirin and non-steroidal anti-inflammatory drugs (NSAIDs), is rising. We assessed the efficacy and safety of misoprostol for the treatment of small bowel ulcers and erosions in patients taking low-dose aspirin or NSAIDs with obscure gastrointestinal bleeding. METHODS: In this randomised, double-blind, placebo-controlled, phase 3 trial, we recruited patients (aged ≥18 years) with small bowel ulcers who were taking low-dose aspirin, NSAIDs, or both for a minimum of 4 weeks, at University Hospital Crosshouse (Kilmarnock, UK)...
May 10, 2018: Lancet. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29753693/oral-administration-of-5-aminolevulinic-acid-induces-heme-oxygenase-1-expression-in-peripheral-blood-mononuclear-cells-of-healthy-human-subjects-in-combination-with-ferrous-iron
#9
Hidenori Ito, Yoshiaki Nishio, Takeshi Hara, Hidemitsu Sugihara, Tohru Tanaka, Xiao-Kang Li
Heme oxygenase-1 (HO-1) is a major anti-inflammatory enzyme and a key regulator that induces immune tolerance through affecting the differentiation of dendritic cells. The aim of this study is to determine whether the combination of 5-aminolevulinic acid (ALA) and iron induces HO-1 expression in healthy human peripheral blood mononuclear cells (PBMC). The study was an open labeled, non-randomized, non-placebo-controlled trial using healthy male adults and consisted of three parts. Study A aimed to find the peak HO-1 expression at 0, 1, 2, 3, 4, 6, 8, 12, 16, and 24h after administration...
May 10, 2018: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29748743/erythropoietin-and-nrf2-key-factors-in-the-neuroprotection-provided-by-apo-lactoferrin
#10
E T Zakharova, A V Sokolov, N N Pavlichenko, V A Kostevich, I N Abdurasulova, A V Chechushkov, I V Voynova, A Yu Elizarova, N N Kolmakov, M G Bass, I V Semak, A I Budevich, P M Kozhin, N K Zenkov, V M Klimenko, O V Kirik, D E Korzhevskii, E B Menshchikova, V B Vasilyev
Among the properties of lactoferrin (LF) are bactericidal, antianemic, immunomodulatory, antitumour, antiphlogistic effects. Previously we demonstrated its capacity to stabilize in vivo HIF-1-alpha and HIF-2-alpha, which are redox-sensitive multiaimed transcription factors. Various tissues of animals receiving recombinant human LF (rhLF) responded by expressing the HIF-1-alpha target genes, hence such proteins as erythropoietin (EPO), ceruloplasmin, etc. were synthesized in noticeable amounts. Among organs in which EPO synthesis occurred were brain, heart, spleen, liver, kidneys and lungs...
May 10, 2018: Biometals: An International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine
https://www.readbyqxmd.com/read/29747537/enzymatic-treatment-of-pork-protein-for-the-enhancement-of-iron-bioavailability
#11
Yasumi Horimoto, Regina Tan, Loong-Tak Lim
The typical intervention for iron-deficiency anaemia is through oral supplementation with iron salts, which have unpleasant side effects. Therefore, there is a need for the development of supplements which will be absorbed more effectively and may have fewer side effects. This study investigated the effects of partially hydrolysed pork proteins on the bioavailability of non-haem iron. The peptides were derived using either pepsin or a combination of bacterial and fungal proteases, and their ability to deliver iron was evaluated in a rat intestine epithelial tissue model...
May 11, 2018: International Journal of Food Sciences and Nutrition
https://www.readbyqxmd.com/read/29743399/-successful-treatment-of-x-linked-sideroblastic-anemia-with-alas2-r452h-mutation-using-vitamin-b-6
#12
Toru Kawakami, Hideyuki Nakazawa, Fumihiro Kawakami, Shuji Matsuzawa, Yuriko Sudo, Hitoshi Sakai, Sayaka Nishina, Noriko Senoo, Yasushi Senoo, Michiharu Komatsu, Takeji Umemura, Tomomi Yamaguchi, Tomoki Kosho, Tohru Fujiwara, Hideo Harigae, Fumihiro Ishida
A 45-year-old man presented with fatigue and pain in the finger joints. Despite having a history of suspected sideroblastic anemia since the age of 18 years, he had not been followed up for years. Upon presentation, laboratory data revealed microcytic anemia and elevated serum ferritin levels. In addition, ringed sideroblasts were increased in the bone marrow. A liver biopsy revealed hemochromatosis and cirrhosis. Furthermore, genetic analysis revealed that he harbored the ALAS2 R452H mutation, leading to the diagnosis of X-linked sideroblastic anemia (XLSA)...
2018: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/29737522/interventions-for-improving-adherence-to-iron-chelation-therapy-in-people-with-sickle-cell-disease-or-thalassaemia
#13
REVIEW
Patricia M Fortin, Sheila A Fisher, Karen V Madgwick, Marialena Trivella, Sally Hopewell, Carolyn Doree, Lise J Estcourt
BACKGROUND: Regularly transfused people with sickle cell disease (SCD) and people with thalassaemia (who are transfusion-dependent or non-transfusion-dependent) are at risk of iron overload. Iron overload can lead to iron toxicity in vulnerable organs such as the heart, liver and endocrine glands; which can be prevented and treated with iron chelating agents. The intensive demands and uncomfortable side effects of therapy can have a negative impact on daily activities and well-being, which may affect adherence...
May 8, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29735760/disruption-of-a-novel-iron-transport-system-reverses-oxidative-stress-phenotypes-of-a-dpr-mutant-strain-of-streptococcus-mutans
#14
Tridib Ganguly, Jessica K Kajfasz, James H Miller, Eric Rabinowitz, Lívia C C Galvão, Pedro L Rosalen, Jacqueline Abranches, José A Lemos
The Dps-like peroxide resistance protein (Dpr) is essential for H2 O2 stress tolerance and aerobic growth of the oral pathogen Streptococcus mutans Dpr accumulates during oxidative stress, protecting the cell by sequestering iron ions, thereby preventing the generation of toxic hydroxyl radicals that result from the interaction of iron with H2 O2 Previously, we reported that the SpxA1 and SpxA2 regulators positively regulate expression of dpr in S. mutans Using an antibody raised against S. mutans Dpr, we confirmed at the protein level the central and cooperative nature of SpxA1 and SpxA2 regulation in Dpr production...
May 7, 2018: Journal of Bacteriology
https://www.readbyqxmd.com/read/29725640/oral-ferric-citrate-hydrate-associated-with-less-oxidative-stress-than-intravenous-saccharated-ferric-oxide
#15
Masaaki Nakayama, Yoshihiro Tani, Wan-Jun Zhu, Kimio Watanabe, Keitaro Yokoyama, Masafumi Fukagawa, Takashi Akiba, Myles Wolf, Hideki Hirakata
Introduction: A recent study suggested that orally dosed ferric citrate hydrate (FC) corrects renal anemia in patients on hemodialysis (HD), suggesting biological differences in effects of iron supplementation using different routes of administration. To address this issue, the present study compared oral FC with i.v. saccharated ferric oxide (FO) in stable HD patients. Methods: Participants comprised 6 patients administered 3 consecutive protocols in the first HD session of the week in a fasting state: nothing given, as control (C); oral load of FC (480 mg iron), and 5 minutes of i...
March 2018: KI Reports
https://www.readbyqxmd.com/read/29716855/effect-of-black-seed-oil-supplementation-on-selected-immunological-hematological-and-iron-status-parameters-in-ribavirin-treated-female-albino-rats
#16
H A Abd-Elmonem
Ribavirin has been found to enhance the anti HCV potential of pegylated interferon and sovaldi. However its use was associated with impact on the hemopoietic system and iron status. The hemopoietic toxicity, sometimes forced patients to reduce the dosage or to discontinue treatment in rare occasions. The main purpose of the present study was to assess the potential of black seed oil, a known potent antioxidant, to ameliorate the negative impact of ribavirin on hematological indices, iron status and natural immunity in rats...
May 2018: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29712435/prolyl-hydroxylase-inhibitors-a-breakthrough-in-the-therapy-of-anemia-associated-with-chronic-diseases
#17
Amit Arvind Joharapurkar, Vrajesh Bhaskarbhai Pandya, Vishal J Patel, Ranjit C Desai, Mukul R Jain
Chronic kidney disease, cancer, chronic inflammatory disorders, nutritional and genetic deficiency can cause anemia. Hypoxia causes induction of hypoxia-inducible factor (HIF), which stimulates erythropoietin (EPO) synthesis. Prolyl hydroxylase domain (PHD) enzyme inhibition can stabilize hypoxia-inducible factor (HIF). HIF stabilization also decreases hepcidin, a hormone of hepatic origin, which regulates iron homeostasis. PHD inhibitors represent the novel pharmacological treatment of anemia of chronic diseases...
May 1, 2018: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29710216/association-of-dasatinib-with-progression-free-survival-among-patients-with-advanced-gastrointestinal-stromal-tumors-resistant-to-imatinib
#18
Scott M Schuetze, Vanessa Bolejack, Dafydd G Thomas, Margaret von Mehren, Shreyaskumar Patel, Brian Samuels, Edwin Choy, Gina D'Amato, Arthur P Staddon, Kristen N Ganjoo, Warren A Chow, Daniel A Rushing, Charles A Forscher, Dennis A Priebat, David M Loeb, Rashmi Chugh, Scott Okuno, Denise K Reinke, Laurence H Baker
Importance: Gastrointestinal stromal tumors (GISTs) are life-threatening when metastatic or not amenable to surgical removal. In a few patients with advanced GISTs refractory to imatinib mesylate, treatment with sunitinib malate followed by regorafenib provides tumor control; however, additional active treatments are needed for most patients. Objective: To evaluate the 6-month progression-free survival (PFS), tumor objective response, and overall survival rates in patients with GISTs treated with dasatinib...
April 26, 2018: JAMA Oncology
https://www.readbyqxmd.com/read/29703633/oral-versus-intravenous-iron-supplementation-for-the-treatment-of-iron-deficiency-anemia-in-patients-on-maintenance-hemodialysis-effect-on-fibroblast-growth-factor-23-metabolism
#19
Wataru Fukao, Yukiko Hasuike, Tomo Yamakawa, Kazuhiro Toyoda, Makoto Aichi, Satoko Masachika, Mari Kantou, Shoko Ikeda Takahishi, Takahide Iwasaki, Mana Yahiro, Masatoshi Nanami, Yasuyuki Nagasawa, Takahiro Kuragano, Takeshi Nakanishi
OBJECTIVE: Iron administration affects serum levels of intact (I-) fibroblast growth factor-23 (FGF23) and its cleavage product C-terminal (C-) FGF23 in iron-deficient patients on maintenance hemodialysis (MHD). The objective of this study was to compare the effect of oral or intravenous iron administration on serum levels of I-FGF23 and C-FGF23 in iron-deficient patients on MHD. DESIGN AND METHODS: A prospective randomized study. SUBJECTS: Participants on MHD with severe iron deficiency (n = 61)...
April 24, 2018: Journal of Renal Nutrition
https://www.readbyqxmd.com/read/29701436/-abnormal-movements-and-internal-medicine-pathologies
#20
Joseph Ghika
Hyperkinesias can be revelaed by an internal medicine pathology. An acute chorea can be found in association with non ketotic hypergycemia, lupus, antiphospholipid syndrome, endocrinopathies, pregnancy or oral contraceptive initiation, or psychostimulant medication. Acute dystonic syndromes are found in association with the initiation of an old generation neuroleptic, metoclopramide, oral contraceptive and pregnancy. It should be differentiated from hyper- or hypo-calcémie tetany. Tremors are found in association with many drugs and hormones...
April 25, 2018: Revue Médicale Suisse
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