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Topic: Zinc


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Zn

In the News (Tue 16 Apr 19)

  
  Linus Pauling Institute at Oregon State University
Zinc deficiency is associated with decreased release of vitamin A from the liver, which may contribute to symptoms of night blindness that are seen with zinc deficiency (14, 15).
Since a sensitive indicator of zinc nutritional status is not readily available, the RDA for zinc is based on a number of different indicators of zinc nutritional status and represents the daily intake likely to prevent deficiency in nearly all individuals in a specific age and gender group (4).
Zinc bioavailability (the fraction of zinc retained and used by the body) is relatively high in meat, eggs, and seafood because of the relative absence of compounds that inhibit zinc absorption and the presence of certain amino acids (cysteine and methionine) that improve zinc absorption.
lpi.oregonstate.edu /infocenter/minerals/zinc   (3926 words)

  
 [No title]
Zinc is a metal, mined in Vieille Montagne and Zinkgruvan, used in the process of galvanizing steel.
Zinc oxide is used as a white pigment in watercolors and paints, and as an activator in the rubber industry.
Zinc chloride is used as a deodorant and as a wood preservative.
www.wikiwhat.com /encyclopedia/z/zi/zinc.html   (1031 words)

  
 Zinc - Wikipedia, the free encyclopedia
Zinc is a moderately reactive bluish-white metal that tarnishes in moist air producing a layer of carbonate and burns in air with a bright greenish flame, giving off plumes of zinc oxide.
Zinc is used in contemporary pipe organ building as a substitute for the classic lead/tin alloy in pipes sounding the lowest (pedal) tones, as it is tonally almost indistinguishable from lead/tin at those pitches, and has the added advantages of being much more economical and lighter in weight.
Zinc oxide is used as a white pigment in watercolours or paints, and as an activator in the rubber industry.
en.wikipedia.org /wiki/Zinc   (2216 words)

  
 Zinc: Encyclopedia of Alternative Medicine
In 2002, new research showed certain concentrations of zinc improved the effect of a therapy called interferon for some patients with chronic hepatitis C. Although the trial was preliminary, it showed promise for further research into zinc's effects in enhancing interferon therapy.
Zinc oxide is a commonly used ingredient in the strongest sun block preparations and some creams for the treatment of diaper rash and superficial skin injuries.
Zinc can decrease the absorption of tetracycline and quinolone class antibiotics, antacids, soy, or manganese, and should not be taken at the same time of day.
health.enotes.com /alternative-medicine-encyclopedia/zinc   (1985 words)

  
 Facts about Zinc
Zinc deficiency most often occurs when zinc intake is inadequate or poorly absorbed, when there are increased losses of zinc from the body, or when the body’s requirement for zinc increases (14-16).
Zinc is required for the development and activation of T-lymphocytes, a kind of white blood cell that helps fight infection (2, 28).
The DV for zinc is 15 milligrams (mg).
ods.od.nih.gov /factsheets/cc/zinc.html   (1916 words)

  
 Zinc and Parrots:
Zinc protects steel and iron from rusting as long as contact is maintained because zinc is the stronger reducing agent of the two metals.
Zinc is necessary for the action of over 20 enzymes and in humans is required for normal vitamin A activity.
Zinc is being used today in lozenge form to aid in prevention of cold viruses.
www.funnyfarmexotics.com /IAS/Zn.htm   (2058 words)

  
 Zinc
Zinc deficiency can occur when zinc intake is inadequate, when there are increased losses of zinc from the body, or when the body's requirement for zinc increases.
When zinc supplements are given to individuals with low zinc levels, the numbers of T-cell lymphocytes circulating in the blood increase and the ability of lymphocytes to fight infection improves.
Zinc supplements are often used to treat skin ulcers or bed sores, but they do not increase rates of wound healing when zinc levels are normal.
healthlink.mcw.edu /article/963415190.html   (1075 words)

  
 MedlinePlus Herbs and Supplements: Zinc
Zinc is a cofactor for the antioxidant enzyme superoxide dismutase (SOD) and is in a number of enzymatic reactions involved in carbohydrate and protein metabolism.
The role for zinc is controversial in some cases, as the results of published studies provide either contradictory information and/or the methodological quality of the studies does not allow for a confident conclusion regarding the role of zinc in those diseases.
Zinc appears to be an essential trace element for the immune system, but research on the effect of zinc supplementation on immune function is scant and mostly focuses on patients with specific diseases.
www.nlm.nih.gov /medlineplus/druginfo/natural/patient-zinc.html   (7485 words)

  
 Zinc Information Sheet
The mineral zinc is present in every part of the body and has a wide range of functions.
Zinc is found in all parts of our body, 60% is found in muscle, 30% in bone and about 5% in our skin.
Zinc is present in a wide variety of foods, particularly in association with protein foods.
www.vegsoc.org /info/zinc.html   (810 words)

  
 Zinc Deficiency
Zinc levels are lower in gymnasts, and lower in female gymnasts than males.
Zinc is important to male sex organ function and reproductive fluids.
Zinc deficiencies in monkeys can be passed down from earlier generations, so this may explain why parents with pectus deformities often have children with pectus deformities.
www.ctds.info /zinc1.html   (2184 words)

  
 WebElements Periodic Table of the Elements | Zinc | Essential information
Zinc is not particularly toxic and is an essential element in the growth of all animals and plants.
Isolation: zinc metal is readily available commercially so it is not normally necesary to make it in the laboratory.
This may be reduced with carbon to form zinc metal, but in practice ingenious technology is required to ensure that the resulting zinc does not contain oxide impurities.
www.webelements.com /zinc   (567 words)

  
 Testing for Zinc in Parrot Toys
Zinc is a heavy metal that is used to coat iron or steel in a process called galvanization to prevent rust.
While the zinc content is lower in a brass plated cage than a zinc plated cage, brass plated cages should be avoided.
With pure brass, the zinc and copper are tightly bound so it would be necessary to ingest a piece of a brass object to get a significant amount of zinc into the system.
www.synnovation.com /zinctesting.html   (5137 words)

  
 It's Elemental - The Element Zinc
Zinc was rediscovered by Andreas Sigismund Marggraf in 1746 by heating calamine with charcoal.
Zinc is alloyed with lead and tin to make solder, a metal with a relatively low melting point used to join electrical components, pipes and other metallic items.
Zinc oxide (ZnO), a common zinc compound, forms when metallic zinc is exposed to the air and forms a protective coating that protects the rest of the metal.
education.jlab.org /itselemental/ele030.html   (401 words)

  
 [No title]
Zinc is a must for serious trainers, and for general health as well.
(Zinc has been shown to be useful in the prevention and treatment of male infertility.) Low zinc levels are shown to lead to decreased sex drive, cause a loss of appetite and even emotional problems.
Zinc plays an important role in a number of other bodily functions as well, and is being studied for it possible use in preventing, or curing, a number of other maladies as well.
staff.washington.edu /griffin/zinc.txt   (954 words)

  
 THE MERCK MANUAL, Sec. 1, Ch. 4, Mineral Deficiency And Toxicity
The signs and symptoms of zinc deficiency include anorexia, growth retardation, delayed sexual maturation, hypogonadism and hypospermia, alopecia, immune disorders, dermatitis, night blindness, impaired taste (hypogeusia), and impaired wound healing.
Zinc deficiency develops in some patients with cirrhosis because the ability to retain zinc is lost.
Biochemical signs associated with zinc deficiency include decreased levels of plasma zinc (< 70 µg/dL [< 10.7 µmol/L]), alkaline phosphatase, alcohol dehydrogenase in the retina (which accounts for night blindness), and plasma testosterone as well as impaired T-lymphocyte function, decreased collagen synthesis (resulting in poor wound healing), and decreased RNA polymerase activity in several tissues.
www.merck.com /pubs/mmanual/section1/chapter4/4e.htm   (482 words)

  
 Zinc
Zinc is required in the diet in such small amounts that it is always present in a normal diet without the need for supplementation.
Pure zinc shows almost no reaction with water or dilute acids, because of the formation of a thin layer of hydrogen gas on its surface, or "polarization." Impure zinc, or zinc in the presence of copper or platinum, reacts readily with the evolution of hydrogen.
Zinc sulphate is less toxic, and is used in medicine as an astringent and antiseptic, and also as a mordant, because gelatinous zinc hydroxide is produced when it is hydrolyzed.
www.du.edu /~jcalvert/phys/zinc.htm   (6855 words)

  
 USGS Minerals Information: Zinc
Zinc is necessary to modern living, and, in tonnage produced, stands fourth among all metals in world production - being exceeded only by iron, aluminum, and copper.
About three-fourths of zinc used is consumed as metal, mainly as a coating to protect iron and steel from corrosion (galvanized metal), as alloying metal to make bronze and brass, as zinc-based die casting alloy, and as rolled zinc.
Zinc is also a necessary element for proper growth and development of humans, animals, and plants; it is the second most common trace metal, after iron, naturally found in the human body.
minerals.er.usgs.gov /minerals/pubs/commodity/zinc   (242 words)

  
 ATSDR - ToxFAQs™: Zinc
Zinc is one of the most common elements in the earth's crust.
Zinc has many commercial uses as coatings to prevent rust, in dry cell batteries, and mixed with other metals to make alloys like brass, and bronze.
Tests to measure zinc in hair may provide information on long-term zinc exposure; however, the relationship between levels in your hair and the amount of zinc you were exposed to is not clear.
www.atsdr.cdc.gov /tfacts60.html   (1175 words)

  
 Zinc
A large proportion of all zinc, perhaps more than a third, is used used to galvanize metals such as iron so as to prevent corrosion.
The density of zinc is 7.140 g/mL, which means the metal will sink in water and is relatively heavy.
Zinc burns in air at high red heat with evolution of white clouds of the zinc oxide.
www.elmhurst.edu /~chm/vchembook/102zinc.html   (215 words)

  
 MedlinePlus Medical Encyclopedia: Zinc in diet
Zinc is needed for the body's defensive (immune) system to properly work.
Zinc is also needed for the senses of smell and taste.
Fruits and vegetables are not good sources, because zinc in plant proteins is not as available for use by the body as the zinc from animal proteins.
www.nlm.nih.gov /medlineplus/ency/article/002416.htm   (425 words)

  
 Zinc - Ask the Dietitian   (Site not responding. Last check: )
Zinc deficiency would result from inadequate intake since most zinc is found in liver, kidney, pancreas and the brain and not lost through blood, urine or feces.
While a zinc deficiency can cause insignificant changes in hair and skin, hair analysis can be unreliable to determine nutrient status in the body.
In addition to the zinc supplement you take, you are getting additional zinc in the multivitamin probably equal to 100% of the Recommended Dietary Allowances or an additional 15 mg.
www.dietitian.com /zinc.html   (510 words)

  
 Zinc, HYG-5560-06
The U.S. RDA for zinc is the amount of the mineral used as a standard in nutrition labeling of foods.
Zinc, a mineral, plays an important role in the formation of protein in the body and thus, assists in wound healing, blood formation, and general growth and maintenance of all tissues.
Zinc is a component of many enzymes, so it is involved in most metabolic processes.
ohioline.osu.edu /hyg-fact/5000/5560.html   (1120 words)

  
 Zinc
Zinc supplementation in children in developing countries is associated with improvements in stunted growth, increased weight gain in underweight children, and substantial reductions in the rates of diarrhea and pneumonia, the two leading causes of death in these settings.
Supplementation with zinc, or zinc and iron together, has been found to improve vitamin A status among children at high risk for deficiency of the three nutrients.
Zinc and platelet membrane microviscosity in Alzheimer’s disease.
www.puritan.com /vf/healthnotes/HN_live/Supp/Zinc.htm   (1732 words)

  
 Zinc Die Casting - High Pressure Die Casting UK
Zinc Die Casting - High Pressure Die Casting UK FisherCast Global are the precision zinc die casters of choice in terms of technical ability, quality, repeatability and cost.
FisherCast Global Zinc Die Cast tools are designed, manufactured and maintained to close tolerances of ±0.0025 mm (±.0001") This remarkable precision produces a "flash-free nett-shape" zinc cast component ready-to-use with no secondary trimming or deburring required.
The close tolerances that are maintained in the tool are seen in the repeatable, high precision zinc components produced, typically +/-0.025mm.
www.fishercast.co.uk   (192 words)

  
 emuhype
ZiNc is an emulator for arcade video games based on Sony PlayStation hardware.
ZiNc is available for both Windows and Linux based PCs.
This is done in order to allow the user to choose between Direct3D and OpenGL plugins, and to allow existing ZiNc users a shorter download and setup time.
www.emuhype.com /index.phtml?s=zinc&ss=index   (134 words)

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