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Thyroid disease and osteoporosis
... People with hypothyroidism are unable to produce enough thyroid hormone. Once again, women are more often affected than men. The most common cause of hypothyroidism is Hashimoto’s disease. Iodine treatment or thyroid surgery, often used to treat hyperthyroidism, can also lead to hypothyroidism. On i ...
... People with hypothyroidism are unable to produce enough thyroid hormone. Once again, women are more often affected than men. The most common cause of hypothyroidism is Hashimoto’s disease. Iodine treatment or thyroid surgery, often used to treat hyperthyroidism, can also lead to hypothyroidism. On i ...
Unit 7 Review
... A nucleus of the isotope xenon, Xe-131, is produced when a nucleus of the radioactive isotope iodine I-13 decays. (a) Explain the term isotopes. the nuclei of different isotopes of an element have the same number of protons; but different numbers of neutrons; ...
... A nucleus of the isotope xenon, Xe-131, is produced when a nucleus of the radioactive isotope iodine I-13 decays. (a) Explain the term isotopes. the nuclei of different isotopes of an element have the same number of protons; but different numbers of neutrons; ...
RIA Thyroid Assays - Bio
... in many systems of the body, through the production and release of the hormones triiodothyronine (T3) and thyroxine (T4). The thyroid also produces calcitonin, which plays an important role in calcium homeostasis. Production of T3 and T4 is controlled by several regulatory feedback loops, including ...
... in many systems of the body, through the production and release of the hormones triiodothyronine (T3) and thyroxine (T4). The thyroid also produces calcitonin, which plays an important role in calcium homeostasis. Production of T3 and T4 is controlled by several regulatory feedback loops, including ...
TOPIC 5 – ATOMIC PHYSICS Radioactivity or radioactive decay:
... 2. Alpha particles are used in smoke alarm for smoke detection. Alpha particles have high ionization effect and therefore they ionize the air molecules in between the two metal plates allowing the current to pass through. When smoke enters between the plates, some of the alpha particles are absorbed ...
... 2. Alpha particles are used in smoke alarm for smoke detection. Alpha particles have high ionization effect and therefore they ionize the air molecules in between the two metal plates allowing the current to pass through. When smoke enters between the plates, some of the alpha particles are absorbed ...
File
... The C-14 is oxidized to CO2, which circulates through the biosphere. When a plant dies, the C-14 is not replenished. But the C-14 continues to decay with t1/2 = 5730 years. Activity of a sample can be used to date the sample. ...
... The C-14 is oxidized to CO2, which circulates through the biosphere. When a plant dies, the C-14 is not replenished. But the C-14 continues to decay with t1/2 = 5730 years. Activity of a sample can be used to date the sample. ...
Chapter 29: Nuclear Physics
... •Alpha rays are stopped by a few cm of air or about 0.02 mm of aluminum. •Beta-minus can penetrate a few cm into biological tissue. •Gamma ray absorption is based on probability so they can penetrate to varying depths. ...
... •Alpha rays are stopped by a few cm of air or about 0.02 mm of aluminum. •Beta-minus can penetrate a few cm into biological tissue. •Gamma ray absorption is based on probability so they can penetrate to varying depths. ...
Save Your Skin: Ask for a thyroid test
... The largest organ of your body, the one that covers you, can tell tales about your thyroid. Is your skin dry, wrinkled and pale? Are you losing your hair and eyebrows? Are you noticing your memory is toast and you cannot focus your foggy brain as you slog through life fatigued and grumpy? Are you co ...
... The largest organ of your body, the one that covers you, can tell tales about your thyroid. Is your skin dry, wrinkled and pale? Are you losing your hair and eyebrows? Are you noticing your memory is toast and you cannot focus your foggy brain as you slog through life fatigued and grumpy? Are you co ...
De Groot et al. JCEM 2012, 2543–2565
... Iodine nutrition and pregnancy • Taking once-daily prenatal vitamins contain 150–200 mcg iodine and that this be in the form of potassium iodide or iodate • Ideally, supplementation should be started before conception. • Preparations containing iron supplements should be separated from thyroid horm ...
... Iodine nutrition and pregnancy • Taking once-daily prenatal vitamins contain 150–200 mcg iodine and that this be in the form of potassium iodide or iodate • Ideally, supplementation should be started before conception. • Preparations containing iron supplements should be separated from thyroid horm ...
Sick Euthyroid syndrome
... TNF-α, IL-1, and IL-6 concentrations are increased in systemic illness and are implicated as mediators of endotoxemia-induced shock, fever, and metabolic acidosis. Serum concentrations of these cytokines have shown to be inversely proportional to serum T3 concentrations in children (IL-6 and TNF ...
... TNF-α, IL-1, and IL-6 concentrations are increased in systemic illness and are implicated as mediators of endotoxemia-induced shock, fever, and metabolic acidosis. Serum concentrations of these cytokines have shown to be inversely proportional to serum T3 concentrations in children (IL-6 and TNF ...
Combined mitral valve replacement and total thyroidectomy: a case
... routine blood tests. Levothyroxine therapy was begun on the day following surgery, after which the levels of thyroid hormone gradually increased to within the normal range by postoperative day 7. Heparin, low dose aspirin and oral anticoagulation were initiated at day 1. The postoperative course was ...
... routine blood tests. Levothyroxine therapy was begun on the day following surgery, after which the levels of thyroid hormone gradually increased to within the normal range by postoperative day 7. Heparin, low dose aspirin and oral anticoagulation were initiated at day 1. The postoperative course was ...
Application for Thyroid Database - Orthopedic Foundation for Animals
... Thyroid Panel.” If the specimen is to be stored for more than 12 hours prior to shipping, frozen storage is recommended. ...
... Thyroid Panel.” If the specimen is to be stored for more than 12 hours prior to shipping, frozen storage is recommended. ...
Graves` disease - Australian Natural Therapists Association ANTA
... Mischoulon & Rosenbaum (cited in Gahlsdorf et al, 2007) have shown that hyperforin, the active constituent of St. John’s Wort (SJW), increases the amount of available extracellular serotonin, dopamine, and norepinephrine into the central nervous system sypnases. This constituent has also been sho ...
... Mischoulon & Rosenbaum (cited in Gahlsdorf et al, 2007) have shown that hyperforin, the active constituent of St. John’s Wort (SJW), increases the amount of available extracellular serotonin, dopamine, and norepinephrine into the central nervous system sypnases. This constituent has also been sho ...
UNIT 7 - ENDOCRINE SYSTEM
... directly into the bloodstream) endocrinologist one who studies the endocrine system or an endocrine system specialist endocrinopathy disease(s) of the endocrine glands or system exocrine to secrete without (refers to those organs which secrete their products through ducts such as salivary glands and ...
... directly into the bloodstream) endocrinologist one who studies the endocrine system or an endocrine system specialist endocrinopathy disease(s) of the endocrine glands or system exocrine to secrete without (refers to those organs which secrete their products through ducts such as salivary glands and ...
Nerve activates contraction
... Major metabolic hormone Composed of two active iodinecontaining hormones Thyroxine (T4) – secreted by thyroid follicles Triiodothyronine (T3) – conversion of T4 at target tissues Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings ...
... Major metabolic hormone Composed of two active iodinecontaining hormones Thyroxine (T4) – secreted by thyroid follicles Triiodothyronine (T3) – conversion of T4 at target tissues Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings ...
Objective 2 Average Atomic Mass
... The discovery of the (11) ___________________ in 1895 by Wilhelm Roentgen opened a whole new field of research. Among those who worked in this new field were Pierre and Marie Curie. The Curies discovered that some forms of matter give off (12) ________________, a combination of particles and energy. ...
... The discovery of the (11) ___________________ in 1895 by Wilhelm Roentgen opened a whole new field of research. Among those who worked in this new field were Pierre and Marie Curie. The Curies discovered that some forms of matter give off (12) ________________, a combination of particles and energy. ...
Remediation_unit 2_standard
... The discovery of the (11) ___________________ in 1895 by Wilhelm Roentgen opened a whole new field of research. Among those who worked in this new field were Pierre and Marie Curie. The Curies discovered that some forms of matter give off (12) ________________, a combination of particles and energy. ...
... The discovery of the (11) ___________________ in 1895 by Wilhelm Roentgen opened a whole new field of research. Among those who worked in this new field were Pierre and Marie Curie. The Curies discovered that some forms of matter give off (12) ________________, a combination of particles and energy. ...
Physiology Ch 76 p907-918 [4-25
... 3. Iodides in High Conc. Decreases Thyroid Activity – at 100x normal conc. Iodides decrease activity of thyroid gland in order to reduce trapping so that the rate of iodination of tyrosine to form thyroid hormones decreases a. normal endocytosis of colloid from follicles paralyzed by high conc. Iodi ...
... 3. Iodides in High Conc. Decreases Thyroid Activity – at 100x normal conc. Iodides decrease activity of thyroid gland in order to reduce trapping so that the rate of iodination of tyrosine to form thyroid hormones decreases a. normal endocytosis of colloid from follicles paralyzed by high conc. Iodi ...
File - Michael Greer, MD
... • Toxic waste is deposited into the cellular matrix for disposal – Must be diluted by the addition of water to prepare them for elimination – Explains why we have to urinate the first thing in the morning (or during the night) ...
... • Toxic waste is deposited into the cellular matrix for disposal – Must be diluted by the addition of water to prepare them for elimination – Explains why we have to urinate the first thing in the morning (or during the night) ...
Chapter 30: Nuclear Physics What will we learn in this chapter?
... Slow neutrons are more efficient in triggering reactions. Hence the radioactive material is submerged in a moderator (H20) which slows the neutrons via collisions. To ensure the right amount of neutrons are in the reactor, control rods can be inserted/removed. Cadmium works best since it absorbs neu ...
... Slow neutrons are more efficient in triggering reactions. Hence the radioactive material is submerged in a moderator (H20) which slows the neutrons via collisions. To ensure the right amount of neutrons are in the reactor, control rods can be inserted/removed. Cadmium works best since it absorbs neu ...
Chapter #20 Nuclear Chemistry
... together by overcoming the repulsive force of the protons. Neutrons are present to help dissipate the repulsive forces between the protons As the atomic number (number of protons) increases, so does the number of neutrons to shield the repulsion of the protons All nuclides with 84 or more protons ar ...
... together by overcoming the repulsive force of the protons. Neutrons are present to help dissipate the repulsive forces between the protons As the atomic number (number of protons) increases, so does the number of neutrons to shield the repulsion of the protons All nuclides with 84 or more protons ar ...
radioactive decay
... Skin can stop alpha radiation Beta radiation – usually only penetrates 1-2cm beneath the skin Alpha, beta and gamma are “ionizing radiation” – they have enough energy to break bonds in molecules which ionizes them, which makes them unstable, and very reactive inside the organism Find out more at Ion ...
... Skin can stop alpha radiation Beta radiation – usually only penetrates 1-2cm beneath the skin Alpha, beta and gamma are “ionizing radiation” – they have enough energy to break bonds in molecules which ionizes them, which makes them unstable, and very reactive inside the organism Find out more at Ion ...
GRS8EndocrineMetabolicDisorders
... of the following: Total T levels unequivocally well below normal Severe symptoms of androgen deficiency No potentially reversible contributing comorbid conditions or medications • More common: low-normal or mildly decreased T levels and nonspecific symptoms such as decreased libido, weakness, ...
... of the following: Total T levels unequivocally well below normal Severe symptoms of androgen deficiency No potentially reversible contributing comorbid conditions or medications • More common: low-normal or mildly decreased T levels and nonspecific symptoms such as decreased libido, weakness, ...
Iodine-131
Iodine-131 (131I), also loosely and nonspecifically called radioiodine, is an important radioisotope of iodine discovered by Glenn Seaborg and John Livingood in 1938 at the University of California, Berkeley. It has a radioactive decay half-life of about eight days. It is associated with nuclear energy, medical diagnostic and treatment procedures, and natural gas production. It also plays a major role as a radioactive isotope present in nuclear fission products, and was a significant contributor to the health hazards from open-air atomic bomb testing in the 1950s, and from the Chernobyl disaster, as well as being a large fraction of the contamination hazard in the first weeks in the Fukushima nuclear crisis. This is because I-131 is a major uranium, plutonium fission product, comprising nearly 3% of the total products of fission (by weight). See fission product yield for a comparison with other radioactive fission products. I-131 is also a major fission product of uranium-233, produced from thorium.Due to its mode of beta decay, iodine-131 is notable for causing mutation and death in cells that it penetrates, and other cells up to several millimeters away. For this reason, high doses of the isotope are sometimes less dangerous than low doses, since they tend to kill thyroid tissues that would otherwise become cancerous as a result of the radiation. For example, children treated with moderate dose of I-131 for thyroid adenomas had a detectable increase in thyroid cancer, but children treated with a much higher dose did not. Likewise, most studies of very-high-dose I-131 for treatment of Graves disease have failed to find any increase in thyroid cancer, even though there is linear increase in thyroid cancer risk with I-131 absorption at moderate doses. Thus, iodine-131 is increasingly less employed in small doses in medical use (especially in children), but increasingly is used only in large and maximal treatment doses, as a way of killing targeted tissues. This is known as ""therapeutic use.""Iodine-131 can be ""seen"" by nuclear medicine imaging techniques (i.e., gamma cameras) whenever it is given for therapeutic use, since about 10% of its energy and radiation dose is via gamma radiation. However, since the other 90% of radiation (beta radiation) causes tissue damage without contributing to any ability to see or ""image"" the isotope, other less-damaging radioisotopes of iodine such as iodine-123 (see isotopes of iodine) are preferred in situations when only nuclear imaging is required. The isotope I-131 is still occasionally used for purely diagnostic (i.e., imaging) work, due to its low expense compared to other iodine radioisotopes. Very small medical imaging doses of I-131 have not shown any increase in thyroid cancer. The low-cost availability of I-131, in turn, is due to the relative ease of creating I-131 by neutron bombardment of natural tellurium in a nuclear reactor, then separating I-131 out by various simple methods (i.e., heating to drive off the volatile iodine). By contrast, other iodine radioisotopes are usually created by far more expensive techniques, starting with reactor radiation of expensive capsules of pressurized xenon gas.Iodine-131 is also one of the most commonly used gamma-emitting radioactive industrial tracer. Radioactive tracer isotopes are injected with hydraulic fracturing fluid to determine the injection profile and location of fractures created by hydraulic fracturing.Much smaller incidental doses of iodine-131 than those used in medical therapeutic procedures, are thought to be the major cause of increased thyroid cancers after accidental nuclear contamination. These cancers happen from residual tissue radiation damage caused by the I-131, and usually appear years after exposure, long after the I-131 has decayed.