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Zinc deficiency

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https://www.readbyqxmd.com/read/27918138/association-of-essential-trace-metals-in-maternal-hair-with-the-risk-of-neural-tube-defects-in-offspring
#1
Lailai Yan, Bin Wang, Zhenjiang Li, Yaqiong Liu, Wenhua Huo, Jingyu Wang, Zhiwen Li, Aiguo Ren
BACKGROUND: The relationship between essential trace metals (ETMs) and the risk of neural tube defects (NTDs) is still unclear. One of the challenges is to evaluate the intake of ETMs of women during their early period of pregnancy. We proposed the hypothesis that an ETM deficiency in women during their early period of pregnancy is associated with an elevated risk of NTDs in offspring. METHODS: We recruited 191 women with NTD-affected pregnancies (case group) and 261 women who delivered healthy infants (control group)...
December 5, 2016: Birth Defects Research. Part A, Clinical and Molecular Teratology
https://www.readbyqxmd.com/read/27916873/the-effect-of-low-dose-iron-and-zinc-intake-on-child-micronutrient-status-and-development-during-the-first-1000-days-of-life-a-systematic-review-and-meta-analysis
#2
REVIEW
Nicolai Petry, Ibironke Olofin, Erick Boy, Moira Donahue Angel, Fabian Rohner
Adequate supply of micronutrients during the first 1000 days is essential for normal development and healthy life. We aimed to investigate if interventions administering dietary doses up to the recommended nutrient intake (RNI) of iron and zinc within the window from conception to age 2 years have the potential to influence nutritional status and development of children. To address this objective, a systematic review and meta-analysis of randomized and quasi-randomized fortification, biofortification, and supplementation trials in women (pregnant and lactating) and children (6-23 months) delivering iron or zinc in doses up to the recommended nutrient intake (RNI) levels was conducted...
November 30, 2016: Nutrients
https://www.readbyqxmd.com/read/27903900/autoregulation-of-mbnl1-function-by-exon-1-exclusion-from-mbnl1-transcript
#3
Patryk Konieczny, Ewa Stepniak-Konieczna, Katarzyna Taylor, Łukasz J Sznajder, Krzysztof Sobczak
Muscleblind-like proteins (MBNLs) are regulators of RNA metabolism. During tissue differentiation the level of MBNLs increases, while their functional insufficiency plays a crucial role in myotonic dystrophy (DM). Deep sequencing of RNA molecules cross-linked to immunoprecipitated protein particles (CLIP-seq) revealed that MBNL1 binds to MBNL1 exon 1 (e1) encoding both the major part of 5'UTR and an amino-terminal region of MBNL1 protein. We tested several hypotheses regarding the possible autoregulatory function of MBNL1 binding to its own transcript...
November 29, 2016: Nucleic Acids Research
https://www.readbyqxmd.com/read/27902777/the-two-component-system-arlrs-and-alterations-in-metabolism-enable-staphylococcus-aureus-to-resist-calprotectin-induced-manganese-starvation
#4
Jana N Radin, Jessica L Kelliher, Paola K Párraga Solórzano, Thomas E Kehl-Fie
During infection the host imposes manganese and zinc starvation on invading pathogens. Despite this, Staphylococcus aureus and other successful pathogens remain capable of causing devastating disease. However, how these invaders adapt to host-imposed metal starvation and overcome nutritional immunity remains unknown. We report that ArlRS, a global staphylococcal virulence regulator, enhances the ability of S. aureus to grow in the presence of the manganese-and zinc-binding innate immune effector calprotectin...
November 2016: PLoS Pathogens
https://www.readbyqxmd.com/read/27895622/serum-zn-cu-ratio-is-associated-with-renal-function-glycemic-control-and-metabolic-parameters-in-japanese-patients-with-and-without-type-2-diabetes-a-cross-sectional-study
#5
Hidetaka Hamasaki, Yu Kawashima, Hidekatsu Yanai
BACKGROUND: Zinc (Zn) and copper (Cu) may play a pivotal role in the pathogenesis of diabetes and diabetic complications by mediating oxidative stress. Both Zn deficiency and excess of Cu are associated with an increased risk of type 2 diabetes and cardiovascular disease. We aimed to investigate the relationships between serum Zn/Cu ratio and glycemic status, renal function, and metabolic parameters in patients with and without type 2 diabetes. METHODS: We conducted a cross-sectional study on 355 subjects (149 type 2 diabetic and 206 non-diabetic) in whom serum Zn and Cu levels were measured at the same time...
2016: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/27890481/growth-disparity-of-motherless-children-might-be-attributed-to-a-deficient-intake-of-high-quality-nutrients
#6
Hui Wang, Xu Tian, Shaowei Wu, Zhibin Hu
We hypothesized that single-parent children (SPC) are retarded in growth compared with both-parent children (BPC), and that motherless children (MC) are affected differently from fatherless children. Moreover, the growth disparity between SPC and BPC might be attributed to a deficient nutrient intake. Data from 2967 children between the ages of 2 and 18 years were extracted from 4 recent waves (2004, 2006, 2009, and 2011) of the China Health and Nutrition Survey to compare the growth status of SPC and BPC and to investigate the association between growth indicators and nutrition status...
November 14, 2016: Nutrition Research
https://www.readbyqxmd.com/read/27889927/sp2-is-the-only-glutamine-rich-specificity-protein-with-minor-impact-on-development-and-differentiation-in-myelinating-glia
#7
Amélie Wegener, Melanie Küspert, Elisabeth Sock, Sjaak Philipsen, Guntram Suske, Michael Wegner
Oligodendrocytes and Schwann cells are the myelinating glia of the vertebrate nervous system and by generation of myelin sheaths allow rapid saltatory conduction. Previous in vitro work had pointed to a role of the C2H2 zinc finger Specificity proteins Sp1 and Sp3 as major regulators of glial differentiation and myelination. Here, we asked whether such a role is also evident in vivo using mice with specific deletions of Sp1 or Sp3 in myelinating glia. We also studied glia-specific conditional Sp2- and constitutive Sp4-deficient mice to include all related glutamine-rich Sp factors into our analysis...
November 27, 2016: Journal of Neurochemistry
https://www.readbyqxmd.com/read/27885534/zinc-deficiency-after-gastric-bypass-for-morbid-obesity-a-systematic-review
#8
REVIEW
Kamal K Mahawar, Aparna Govil Bhasker, Vivek Bindal, Yitka Graham, Usha Dudeja, Muffazal Lakdawala, Peter K Small
Up to 50% of patients have zinc deficiency before bariatric surgery. Roux-en-Y gastric bypass (RYGB) is the commonest bariatric procedure worldwide. It can further exacerbate zinc deficiency by reducing intake as well as absorption. The British Obesity and Metabolic Surgery Society, therefore, recommends that zinc level should be monitored routinely following gastric bypass. However, the American guidance does not recommend such monitoring for all RYGB patients and reserves it for patients with 'specific findings'...
November 24, 2016: Obesity Surgery
https://www.readbyqxmd.com/read/27885434/evaluation-of-mir-21-and-mir-375-as-prognostic-biomarkers-in-oesophageal-cancer-in-high-risk-areas-in-china
#9
Yutong He, Jing Jin, LiQun Wang, Yuejiao Hu, Di Liang, Huichai Yang, Yueping Liu, Baoen Shan
MicroRNAs have been associated with prognosis in oesophageal cancer (EC), suggesting that miRNAs could play a role in guiding treatment decisions. The aim of this study was to evaluate the prognostic potential of miRNAs found to be associated with zinc deficiency in a geographical area with a high incidence of EC. miRNAs found to be associated with zinc deficiency were isolated from EC cell lines cultured with various Zn levels. The expression levels of the miRNAs were quantified using qRT-PCR. The potential prognostic value of the selected miRNAs was assessed in a cohort study of 88 patients from an area in China with a high incidence of EC...
November 24, 2016: Clinical & Experimental Metastasis
https://www.readbyqxmd.com/read/27882813/dietary-zinc-modifies-diabetic-induced-renal-pathology-in-rats
#10
Wael M Elsaed, Hazem Abdelhamid Mohamed
This study was conducted to investigate how far dietary zinc (Zn) modifies the histomorphological alterations induced by diabetes in rat kidneys. The animals were divided into negative control group (10 rats). Diabetes was induced in thirty animals by streptozotocin. After confirming diabetes, the animals were divided into three groups (n = 10). Group II served as the positive control group (fed on standard diet), group III was fed on Zn deficient diet, and group IV was fed on Zn supplemented diet. Caspase-3 immune staining was used to estimate the caspase activity...
November 24, 2016: Renal Failure
https://www.readbyqxmd.com/read/27875740/conditional-knockout-of-tfpi-1-in-vsmcs-of-mice-accelerates-atherosclerosis-by-enhancing-amot-yap-pathway
#11
Jiajun Xiao, Kaiyue Jin, Jiping Wang, Jing Ma, Jin Zhang, Nan Jiang, Huijun Wang, Xinping Luo, Jian Fei, Zhugang Wang, Xiao Yang, Duan Ma
BACKGROUND: Tissue factor pathway inhibitor-1 (TFPI-1) has multiple functions and its precise role and molecular mechanism during the development of atherosclerosis are not clear. OBJECTIVES: To determine the effect and molecular mechanism of TFPI-1 deficiency in vascular smooth muscle cells (VSMCs) in atherosclerosis in the apolipoprotein E knockout (ApoE(-/-)) mouse. METHODS AND RESULTS: A mouse model with a conditional knockout of TFPI-1 in VSMCs in an atherosclerosis-prone background (ApoE(-/-)) was generated...
November 12, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27875310/extending-halogen-based-medicinal-chemistry-to-proteins-iodo-insulin-as-a-case-study
#12
Krystel El Hage, Vijay Pandyarajan, Nelson B Phillips, Brian J Smith, John G Menting, Jonathan Whittaker, Michael C Lawrence, Markus Meuwly, Michael A Weiss
Insulin, a protein critical for metabolic homeostasis, provides a classical model for protein design with application to human health. Recent efforts to improve its pharmaceutical formulation demonstrated that iodination of a conserved tyrosine (Tyr(B26)) enhances key properties of a rapid-acting clinical analog. Moreover, the broad utility of halogens in medicinal chemistry has motivated use of hybrid quantum- and molecular-mechanical methods to study proteins. Here, we (i) undertook quantitative atomic-level simulations of 3-I-Tyr(B26)-insulin to predict its structural features and (ii) tested these predictions by X-ray crystallography...
November 14, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27872866/roles-of-zinc-signaling-in-the-immune-system
#13
REVIEW
Shintaro Hojyo, Toshiyuki Fukada
Zinc (Zn) is an essential micronutrient for basic cell activities such as cell growth, differentiation, and survival. Zn deficiency depresses both innate and adaptive immune responses. However, the precise physiological mechanisms of the Zn-mediated regulation of the immune system have been largely unclear. Zn homeostasis is tightly controlled by the coordinated activity of Zn transporters and metallothioneins, which regulate the transport, distribution, and storage of Zn. There is growing evidence that Zn behaves like a signaling molecule, facilitating the transduction of a variety of signaling cascades in response to extracellular stimuli...
2016: Journal of Immunology Research
https://www.readbyqxmd.com/read/27857831/acquired-bilateral-longitudinal-true-leukonychia-in-a-35-year-old-woman
#14
Fatemeh Mokhtari, Samaneh Mozafarpoor, Saeid Nouraei, Mohammad Ali Nilforoushzadeh
Acquired bilateral longitudinal true leukonychia is a rare disorder. We present a case of a 35-year-old healthy woman presented with this unusual and rare manifestation. She mentioned a history of unprotected exposure to detergents and bleaching chemical agents. Considering her low zinc level, she was prescribed with zinc capsules and recommended to avoid chemical substances for 6 months. During bimonthly follow-up, her zinc level turned normal, and leukonychia subsequently disappeared. Bilateral longitudinal true leukonychia in the nails due to zinc deficiency and exposure to chemical substances has not been reported previously...
2016: International Journal of Preventive Medicine
https://www.readbyqxmd.com/read/27837349/comparison-of-body-composition-and-nutrients-deficiencies-between-portuguese-rink-hockey-players
#15
Maria-Raquel G Silva, Hugo-Henrique Silva
: We evaluated dietary intake and body composition of child and adolescent rink-hockey players and controls. Seventy-two male rink-hockey players (38 children and 34 adolescents) and 79 male controls (43 children and 36 adolescents) were evaluated in order to collect training data, detailed dietary intake and body composition. Rink-hockey players presented significantly lower body fat (BF) and higher fat-free mass (FFM) than controls. Mean intakes of carbohydrate and protein were considered to be adequate, but mean intakes of fat were above the recommended levels in athletes...
November 12, 2016: European Journal of Pediatrics
https://www.readbyqxmd.com/read/27830291/-cutaneous-involvement-in-chronic-inflammatory-bowel-disease-crohn-s-disease-and-ulcerative-colitis
#16
REVIEW
L Richter, K Rappersberger
BACKGROUND: Over recent decades, both the incidence and prevalence of chronic inflammatory bowel disease have continued to rise in industrialized countries; the disease is frequently associated with extracutaneous involvement and comorbidity. OBJECTIVES: The purpose of this work was to investigate the frequency and specificity of mucocutaneous manifestations in Crohn's disease (CD) and ulcerative colitis (UC). MATERIALS AND METHODS: An extensive search in peer-reviewed journals via PubMed was performed; presented is a summary and analysis of various studies and data, including data of patients treated at our department...
December 2016: Der Hautarzt; Zeitschrift Für Dermatologie, Venerologie, und Verwandte Gebiete
https://www.readbyqxmd.com/read/27822880/tracing-of-zinc-nanocrystals-in-the-anterior-pituitary-of-zinc-deficient-wistar-rats
#17
Anjana Kuldeep, Neena Nair, Ranveer Singh Bedwal
The aim of this study was to trace zinc nanocrystals in the anterior pituitary of zinc-deficient Wistar rats by using autometallographic technique. Male Wistar rats (30-40 days of age, pre-pubertal period) of 40-50 g body weight were divided into the following: the ZC (zinc control) group-fed with 100 ppm zinc in diet, the ZD (zinc-deficient) group-fed with zinc-deficient (1.00 ppm) diet and the PF (pair-fed) group-received 100 ppm zinc in diet. The experiments were set for 2 and 4 weeks. Pituitary was removed and processed for the autometallographic technique...
November 7, 2016: Biological Trace Element Research
https://www.readbyqxmd.com/read/27822638/cardiac-changes-in-apoptosis-inflammation-oxidative-stress-and-nitric-oxide-system-induced-by-prenatal-and-postnatal-zinc-deficiency-in-male-and-female-rats
#18
Lorena Vanesa Juriol, María Natalia Gobetto, Facundo Mendes Garrido Abregú, Marina Ercilia Dasso, Gonzalo Pineda, Leandro Güttlein, Andrea Carranza, Osvaldo Podhajcer, Jorge Eduardo Toblli, Rosana Elesgaray, Cristina Teresa Arranz, Analía Lorena Tomat
PURPOSE: Zinc restriction during fetal and postnatal development could program cardiovascular diseases in adulthood. The aim of this study was to determine the effects of zinc restriction during fetal life, lactation, and/or post-weaning growth on cardiac inflammation, apoptosis, oxidative stress, and nitric oxide system of male and female adult rats. METHODS: Wistar rats were fed a low- or a control zinc diet during pregnancy and up to weaning. Afterward, offspring were fed either a low- or a control zinc diet until 81 days of life...
November 7, 2016: European Journal of Nutrition
https://www.readbyqxmd.com/read/27822249/the-influence-of-administration-of-different-doses-of-arginine-and-lysine-coupled-with-zinc-in-the-lactating-ewes-on-the-zinc-concentration-in-milk
#19
M Keshvari, H Khazali, H Rokni, A Hosseini
Zinc (Zn) plays an essential role in the human and animal body system. Zinc deficiency might cause many disorders, so it is important to provide a sufficient amount of this microelement in both animals and humans. One of the most important sources of Zn is milk. The purpose of this study was to determine whether Zn can pass through the mammary epithelial cell into milk by a co-transport system with amino acid in the lactating ewes. This experimental research included 54 lactating ewes collected from the Agriculture-Jahad Organization of Tehran Province, that were allocated into 9 groups as follows: groups which received inorganic form as Zn chloride (1, 2 and 4 mg/kg), and groups which received organic Zn with different doses of arginine or lysine (1, 2 and 4 mg/kg) in chelate form...
2016: Iranian journal of veterinary research
https://www.readbyqxmd.com/read/27814637/zinc-transporters-and-dysregulated-channels-in-cancers
#20
Zui Pan, Sangyong Choi, Halima Ouadid-Ahidouch, Jin-Ming Yang, John H Beattie, Irina Korichneva
As a nutritionally essential metal ion, zinc (Zn) not only constitutes a structural element for more than 3000 proteins but also plays important regulatory functions in cellular signal transduction. Zn homeostasis is tightly controlled by regulating the flux of Zn across cell membranes through specific transporters, i.e. ZnT and ZIP family proteins. Zn deficiency and malfunction of Zn transporters have been associated with many chronic diseases including cancer. However, the mechanisms underlying Zn regulatory functions in cellular signaling and their impact on the pathogenesis and progression of cancers remain largely unknown...
January 1, 2017: Frontiers in Bioscience (Landmark Edition)
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