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https://www.readbyqxmd.com/read/28432145/bacterial-siderophores-hijack-neutrophil-functions
#1
Piu Saha, Beng San Yeoh, Rodrigo A Olvera, Xia Xiao, Vishal Singh, Deepika Awasthi, Bhagawat C Subramanian, Qiuyan Chen, Madhu Dikshit, Yanming Wang, Carole A Parent, Matam Vijay-Kumar
Neutrophils are the primary immune cells that respond to inflammation and combat microbial transgression. To thrive, the bacteria residing in their mammalian host have to withstand the antibactericidal responses of neutrophils. We report that enterobactin (Ent), a catecholate siderophore expressed by Escherichia coli, inhibited PMA-induced generation of reactive oxygen species (ROS) and neutrophil extracellular traps (NETs) in mouse and human neutrophils. Ent also impaired the degranulation of primary granules and inhibited phagocytosis and bactericidal activity of neutrophils, without affecting their migration and chemotaxis...
April 21, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28431746/re-evaluation-of-serum-ferritin-cut-off-values-for-the-diagnosis-of-iron-deficiency-in-children-aged-12-36-months
#2
Kawsari Abdullah, Catherine S Birken, Jonathon L Maguire, Darcy Fehlings, Anthony J Hanley, Kevin E Thorpe, Patricia C Parkin
An ongoing challenge has been determining clinically relevant serum ferritin cut-offs in the diagnosis of iron deficiency in children aged 1-3 years. We identified 2 potential clinically relevant serum ferritin cut-off values through their association with clinically important cut-off of hemoglobin as the indicator of anemia.
April 18, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/28430082/a-community-based-survey-on-syrian-refugee-women-s-health-and-its-predictors-in-%C3%A5-anliurfa-turkey
#3
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/28429296/diurnal-changes-in-transcript-and-metabolite-levels-during-the-iron-deficiency-response-of-rice
#4
Jamie Selby-Pham, Adrian Lutz, Laura T Moreno-Moyano, Berin A Boughton, Ute Roessner, Alexander A T Johnson
BACKGROUND: Rice (Oryza sativa L.) is highly susceptible to iron (Fe) deficiency due to low secretion levels of the mugineic acid (MA) family phytosiderophore (PS) 2'-deoxymugineic acid (DMA) into the rhizosphere. The low levels of DMA secreted by rice have proved challenging to measure and, therefore, the pattern of DMA secretion under Fe deficiency has been less extensively studied relative to other graminaceous monocot species that secrete high levels of PS, such as barley (Hordeum vulgare L...
December 2017: Rice
https://www.readbyqxmd.com/read/28429247/a-review-of-the-novel-application-and-potential-adverse-effects-of-proton-pump-inhibitors
#5
REVIEW
Li-Yuan Yu, Lu-Ning Sun, Xue-Hui Zhang, Yue-Qi Li, Lei Yu, Zi-Qing-Yun Yuan, Ling Meng, Hong-Wen Zhang, Yong-Qing Wang
Proton pump inhibitors (PPIs) are known as a class of pharmaceutical agents that target H(+)/K(+)-ATPase, which is located in gastric parietal cells. PPIs are widely used in the treatment of gastric acid-related diseases including peptic ulcer disease, erosive esophagitis and gastroesophageal reflux disease, and so on. These drugs present an excellent safety profile and have become one of the most commonly prescribed drugs in primary and specialty care. Except for gastric acid-related diseases, PPIs can also be used in the treatment of Helicobacter pylori infection, viral infections, respiratory system diseases, cancer and so on...
April 20, 2017: Advances in Therapy
https://www.readbyqxmd.com/read/28428059/the-decreased-growth-performance-and-impaired-immune-function-and-structural-integrity-by-dietary-iron-deficiency-or-excess-are-associated-with-tor-nf-%C3%AE%C2%BAb-p38mapk-nrf2-and-mlck-signaling-in-head-kidney-spleen-and-skin-of-grass-carp-ctenopharyngodon-idella
#6
Yan-Lin Guo, Wei-Dan Jiang, Pei Wu, Yang Liu, Xiao-Qiu Zhou, Sheng-Yao Kuang, Ling Tang, Wu-Neng Tang, Yong-An Zhang, Lin Feng
This study was conducted to investigate the effects of dietary iron on the growth, and immune function and structural integrity in head kidney, spleen and skin as well as the underlying signaling of young grass carp (Ctenopharyngodon idella). Total 630 grass carp (242.32 ± 0.58 g) were fed diets containing graded levels of iron at 12.15 (basal diet), 35.38, 63.47, 86.43, 111.09, 136.37 mg/kg (diets 2-6 were added with ferrous fumarate) and 73.50 mg/kg (diet 7 was added with ferrous sulfate) diet for 60 days...
April 17, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28427446/respiratory-chain-complex-iii-deficiency-due-to-mutated-bcs1l-a-novel-phenotype-with-encephalomyopathy-partially-phenocopied-in-a-bcs1l-mutant-mouse-model
#7
Saara Tegelberg, Nikica Tomašić, Jukka Kallijärvi, Janne Purhonen, Eskil Elmér, Eva Lindberg, David Gisselsson Nord, Maria Soller, Nicole Lesko, Anna Wedell, Helene Bruhn, Christoph Freyer, Henrik Stranneheim, Rolf Wibom, Inger Nennesmo, Anna Wredenberg, Erik A Eklund, Vineta Fellman
BACKGROUND: Mitochondrial diseases due to defective respiratory chain complex III (CIII) are relatively uncommon. The assembly of the eleven-subunit CIII is completed by the insertion of the Rieske iron-sulfur protein, a process for which BCS1L protein is indispensable. Mutations in the BCS1L gene constitute the most common diagnosed cause of CIII deficiency, and the phenotypic spectrum arising from mutations in this gene is wide. RESULTS: A case of CIII deficiency was investigated in depth to assess respiratory chain function and assembly, and brain, skeletal muscle and liver histology...
April 20, 2017: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/28425182/serum-ferritin-thresholds-for-the-diagnosis-of-iron-deficiency-in-pregnancy-a-systematic-review
#8
REVIEW
J Daru, J Allotey, J P Peña-Rosas, K S Khan
The aim of this review was to understand the landscape of serum ferritin in diagnosing iron deficiency in the aetiology of anaemia in pregnancy. Iron deficiency in pregnancy is a major public health problem leading to the development of anaemia. Reducing the global prevalence of anaemia in women of reproductive age is a 2025 global nutrition target. Bone marrow aspiration is the gold standard test for iron deficiency but requires an invasive procedure; therefore, serum ferritin is the most clinically useful test...
April 20, 2017: Transfusion Medicine
https://www.readbyqxmd.com/read/28424794/study-design-and-baseline-results-of-an-open-label-cluster-randomized-community-intervention-trial-to-assess-the-effectiveness-of-a-modified-mass-deworming-program-in-reducing-hookworm-infection-in-a-tribal-population-in-southern-india
#9
Rajiv Sarkar, Anuradha Rose, Venkata R Mohan, Sitara S R Ajjampur, Vasanthakumar Veluswamy, Rajan Srinivasan, Jayaprakash Muliyil, Vedantam Rajshekhar, Kuryan George, Vinohar Balraj, Nicholas C Grassly, Roy M Anderson, Simon J Brooker, Gagandeep Kang
INTRODUCTION: Hookworm infection is a leading cause of iron deficiency anemia and malnutrition in resource-poor settings. Periodic mass deworming with anthelminthic drugs remains the cornerstone of hookworm control efforts worldwide. Reinfection following treatment occurs, reflecting the human host's inability to acquire immunity following exposure to an untreated reservoir of infection. This cluster randomized trial will evaluate the effectiveness of a modified, population-based, mass deworming strategy in reducing hookworm infection in an endemic southern Indian population...
March 2017: Contemporary Clinical Trials Communications
https://www.readbyqxmd.com/read/28424258/serum-hepcidin-concentrations-decline-during-pregnancy-and-may-identify-iron-deficiency-analysis-of-a-longitudinal-pregnancy-cohort-in-the-gambia
#10
Amat Bah, Sant-Rayn Pasricha, Momodou W Jallow, Ebrima A Sise, Rita Wegmuller, Andrew E Armitage, Hal Drakesmith, Sophie E Moore, Andrew M Prentice
Background: Antenatal anemia is a risk factor for adverse maternal and fetal outcomes and is prevalent in sub-Saharan Africa. Less than half of antenatal anemia is considered responsive to iron; identifying women in need of iron may help target interventions. Iron absorption is governed by the iron-regulatory hormone hepcidin.Objective: We sought to characterize changes in hepcidin and its associations with indexes of iron stores, erythropoiesis, and inflammation at weeks 14, 20, and 30 of gestation and to assess hepcidin's diagnostic potential as an index of iron deficiency...
April 19, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28424257/an-animal-source-food-supplement-increases-micronutrient-intakes-and-iron-status-among-reproductive-age-women-in-rural-vietnam
#11
Andrew G Hall, Tu Ngu, Hoang T Nga, Phi N Quyen, Pham T Hong Anh, Janet C King
Background: Few studies have examined the impact of local animal-source foods (ASFs) on the nutritional status of reproductive-age women in developing countries.Objective: We hypothesized that a midmorning snack of local ASF for 6 mo would reduce dietary micronutrient deficiencies [usual intake less than the estimated average requirement (EAR)] and improve blood biomarkers of iron, zinc, and vitamins A and B-12 status among nonpregnant, reproductive-age women in rural Vietnam.Methods: One hundred seventeen women, 18-30 y old, were randomly assigned to receive either an ASF (mean: 144 kcal, 8...
April 19, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28421792/micronutrient-supplementation-in-gastric-bypass-surgery-prospective-study-on-in%C3%AF-ammation-and-iron-metabolism-in-premenopausal-women
#12
Flávia Andréia Marin, Rozangela Verlengia, Alex Harley Crisp, Patrícia Fátima Sousa Novais, Irineu Rasera-Junior, Maria Rita Marques De Oliveira
BACKGROUND: Low-grade chronic inflammation in morbid obesity is associated with impaired iron metabolism. Bariatric surgery is effective in weight loss; however, it can induce specific nutritional deficiencies, such as iron, especially in premenopausal women. Alternatively, after surgery, there is an improvement in systemic inflammation, raising questions concerning the dosages of micronutrient supplementation. OBJECTIVES: This study aimed to assess the effect of two micronutrient supplementation schemes before and 6 months after a Roux-en-Y gastric bypass (RYGB) surgery on inflammation and iron metabolism in premenopausal women...
March 30, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/28421565/iron-homeostasis-in-inflammation-a-single-centre-prospective-observational-study-in-medical-inpatients
#13
Carl Chrobak, Jan Adam Sidler, Alix O'Meara, Sabine Schaedelin, Balthasar L Hug
AIMS OF THE STUDY: We aimed to assess a potential association of iron status with mortality and morbidity of inpatients with systemic inflammation. METHODS: This was a single centre prospective observational study. From April 2014 to October 2014, all consecutive medical inpatients aged >=18 years with a C-reactive protein value >5 mg/l on hospital admission were eligible for the study. We excluded pregnant women and patients with terminal renal insufficiency or past allogeneic stem cell transplantation...
April 19, 2017: Swiss Medical Weekly
https://www.readbyqxmd.com/read/28421060/the-heme-metabolite-carbon-monoxide-facilitates-kshv-infection-by-inhibiting-tlr4-signaling-in-endothelial-cells
#14
Sara Botto, Jean K Gustin, Ashlee V Moses
Kaposi sarcoma herpesvirus (KSHV) is the etiologic agent of Kaposi sarcoma (KS) and certain rare B cell lymphoproliferative disorders. KSHV infection of endothelial cells (EC) in vitro increases expression of the inducible host-encoded enzyme heme oxygenase-1 (HO-1), which is also strongly expressed in KS tumors. HO-1 catalyzes the rate-limiting step in the conversion of heme into iron, biliverdin and the gasotransmitter carbon monoxide (CO), all of which share anti-apoptotic, anti-inflammatory, pro-survival, and tumorigenic activities...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28420664/the-uk-cardiac-and-vascular-surgery-interventional-anaemia-response-caviar-study-protocol-for-an-observational-cohort-study-to-determine-the-impact-and-effect-of-preoperative-anaemia-management-in-cardiac-and-vascular-surgical-patients
#15
Marisa Chau, Toby Richards, Caroline Evans, Anna Butcher, Timothy Collier, Andrew Klein
INTRODUCTION: Preoperative anaemia is linked to poor postsurgical outcome, longer hospital stays, greater risk of complications and mortality. Currently in the UK, some sites have developed anaemia clinics or pathways that use intravenous iron to correct iron deficiency anaemia prior to surgery as their standard of care. Although intravenous iron has been observed to be effective in a variety of patient settings, there is insufficient evidence in its use in cardiac and vascular patients...
April 18, 2017: BMJ Open
https://www.readbyqxmd.com/read/28420205/do-chinese-children-get-enough-micronutrients
#16
Huijun Wang, Dantong Wang, Yifei Ouyang, Feifei Huang, Gangqiang Ding, Bing Zhang
The aim of this study was to examine usual daily micronutrient intake of Chinese children based on data from the 2011 China Health and Nutrition Survey. We analyzed data from 4 to 17-year-old participants, who provided dietary data on three consecutive days combined with the household weighing method in 2011. Usual daily intake of each nutrient was estimated using a mixed effects model based on the China Food Composition published in 2009. The means, medians and percentages below Estimated Average Requirements (EAR) were reported for selected micronutrients, including calcium, sodium, potassium, iron, zinc, selenium, vitamin A, thiamine, riboflavin and vitamin C...
April 18, 2017: Nutrients
https://www.readbyqxmd.com/read/28417923/anemia-in-kawasaki-disease-hepcidin-as-a-potential-biomarker
#17
REVIEW
Ying-Hsien Huang, Ho-Chang Kuo
Kawasaki disease (KD) is an autoimmune-like disease and acute childhood vasculitis syndrome that affects various systems but has unknown etiology. In addition to the standard diagnostic criteria, anemia is among the most common clinical features of KD patients and is thought to have a more prolonged duration of active inflammation. In 2001, the discovery of a liver-derived peptide hormone known as hepcidin began revolutionizing our understanding of anemia's relation to a number of inflammatory diseases, including KD...
April 12, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28417130/iron-isotopic-composition-of-blood-serum-in-anemia-of-chronic-kidney-disease
#18
Yulia Anoshkina, Marta Costas-Rodríguez, Marijn Speeckaert, Wim Van Biesen, Joris Delanghe, Frank Vanhaecke
Chronic kidney disease (CKD) is a general term for disorders that affect the structure and function of the kidneys. Iron deficiency (ID) and anemia occur in the vast majority of CKD patients, most of whom are elderly. However, establishing the cause of anemia in CKD, and therefore making an informed decision concerning the corresponding therapeutic treatment, is still a challenge. High-precision Fe isotopic analysis of blood serum samples of CKD patients with and without ID/anemia was performed via multi-collector inductively coupled plasma-mass spectrometry (MC-ICP-MS) for such a purpose...
April 18, 2017: Metallomics: Integrated Biometal Science
https://www.readbyqxmd.com/read/28417041/focal-scalp-hair-heterochromia-in-an-infant
#19
Pramod Kumar
Hair heterochromia involves the presence of two different non-artificially induced colours of hair in the same individual which can be due to either iron deficiency anaemia, genetic mutations or mosaicism. We report a six-month old male infant who presented to the Department of Dermatology, Saham Hospital, Saham, Oman, in 2013 with focal scalp hair heterochromia without any detectable underlying abnormalities. The area of heterochromia was still noticeable at a one-year follow-up.
February 2017: Sultan Qaboos University Medical Journal
https://www.readbyqxmd.com/read/28416186/nutritional-deficiencies-four-years-after-laparoscopic-sleeve-gastrectomy-are-supplements-required-for-a-lifetime
#20
Tair Ben-Porat, Ram Elazary, Ariela Goldenshluger, Shiri Sherf Dagan, Yoav Mintz, Ram Weiss
BACKGROUND: Data regarding long-term nutritional deficiencies following laparoscopic sleeve gastrectomy (LSG) are scarce. OBJECTIVES: To assess the prevalence of nutritional deficiencies and supplement consumption 4 years post-LSG. SETTING: Hebrew University, Israel. METHODS: Data were collected prospectively from preoperative and 1 and 4 years postoperative including anthropometric parameters, biochemical tests, and supplement intake...
March 2, 2017: Surgery for Obesity and related Diseases: Official Journal of the American Society for Bariatric Surgery
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