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Which hormones exerts its effect primarily on the reproductive organs?
(FSH) Follicle-stimulating hormone. (LH) Luteinising hormone. Oestrogen. Testosterone.
What are the hormones that are amino acid derivative?
3 examples of hormones that are amino acid or protein based are calcitonin, ACTH, and ADH. Two more examples are TSH and LH or FSH.
Testosterone?
DefinitionA testosterone test measures the amount of the male hormone, testosterone, in the blood.Alternative NamesSerum testosteroneHow the test is performedBlood is typically drawn from a vein, usually from the inside of the elbow or the back of the hand. The site is cleaned with germ-killing medicine (antiseptic). The health care provider wraps an elastic band around the upper arm to apply pressure to the area and make the vein swell with blood.Next, the health care provider gently inserts a needle into the vein. The blood collects into an airtight vial or tube attached to the needle. The elastic band is removed from your arm. Once the blood has been collected, the needle is removed, and the puncture site is covered to stop any bleeding.In infants or young children, a sharp tool called a lancet may be used to puncture the skin and make it bleed. The blood collects into a small glass tube called a pipette, or onto a slide or test strip. A bandage may be placed over the area if there is any bleeding.How to prepare for the testThe health care provider may advise you to stop taking drugs that may affect the test.How the test will feelWhen the needle is inserted to draw blood, some people feel moderate pain, while others feel only a prick or stinging sensation. Afterward, there may be some throbbing.Why the test is performedThis test may be done if you have symptoms of abnormal male hormone (androgen) production.In males, the testes produce most of the circulating testosterone. The hormone LH from the pituitary gland stimulates the Leydig cells in the testicles to produce testosterone.In females, the ovaries produce most of the testosterone. The adrenal cortex produces another male hormone, dehydroepiandrosterone (DHEA).Testosterone levels are used to assess:Early or late puberty in boysImpotence and infertility in menExcess hair growth (hirsutism), male body characteristics (virilization), and irregular menstrual periods in womenNormal ValuesMale: 300 -1,200 ng/dLFemale: 30 - 95 ng/dLNote: ng/dL = nanograms per deciliterNormal value ranges may vary slightly among different laboratories. Talk to your doctor about the meaning of your specific test results.The examples above show the common measurements for results for these tests. Some laboratories use different measurements or may test different specimens.What abnormal results meanIncreased production of testosterone:Androgen resistanceCongenital adrenal hyperplasiaOvarian cancerPolycystic ovary diseasePrecocious pubertyTesticular cancerDecreased production of testosterone:Chronic illnessDelayed pubertyHypopituitarismProlactinomaTesticular failureWhat the risks areVeins and arteries vary in size from one patient to another and from one side of the body to the other. Obtaining a blood sample from some people may be more difficult than from others.Other risks associated with having blood drawn are slight, but may include:Excessive bleedingFainting or feeling light-headedHematoma (blood accumulating under the skin)Infection (a slight risk any time the skin is broken)Special considerationsMore sensitive tests can not only measure the total amount of testosterone in the blood, but can also determine how much of that total amount is "free" or "bioavailable" testosterone.ReferencesWebster RA. Reproductive function and pregnancy. In: McPherson RA, Pincus MR. Henry's Clinical Diagnosis and Management by Laboratory Methods. 21st ed. Philadelphia, Pa: Saunders Elsevier;2006:chap 25.Reviewed ByReview Date: 01/21/2010Robert Cooper, MD, Endocrinology Specialist and Chief of Medicine, Holyoke Medical Center, Assistant Professor of Medicine, Tufts University School of Medicine, Boston, MA. Review provided by VeriMed Healthcare Network. Also reviewed by Linda J. Vorvick, MD, Medical Director, MEDEX Northwest Division of Physician Assistant Studies, University of Washington, School of Medicine; and David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
What is the Lewis structure of CH2ClCOO?
The Lewis dot structure starts with two singly bonded C atoms. On the left hand side C are three singly bonded H atoms. On the right C, there is a doubly bonded O atom to the top and a singly bonded O atom to the right. The upper O has two pairs of dots and the right has three pairs of dots.
What is the importance of transition metals in the human body?
Animals and humans have similar evolutionary backgrounds. Specific elements play critical roles in the structures of proteins and the activities of enzymes. The purpose of this page is to outline some of the uses of elements in the structure of animals and humans and to illustrate why these elements are essential in the body and for optimal health. * Calcium (Ca)Structure of bone and teeth. * Phosphorous (Ph)Structure of bone and teeth. Required for ATP, the energy carrier in animals. * Magnesium (Mg)Important in bone structure. Deficiency results in tetany (muscle spasms) and can lead to a calcium deficiency. * Sodium (Na)Major electrolyte of blood and extracellular fluid. Required for maintenance of pH and osmotic balance. * Potassium (K)Major electrolyte of blood and intracellular fluid. Required for maintenance of pH and osmotic balance. * Chlorine (Cl)Major electrolyte of blood and extracellular and intracellular fluid. Required for maintenance of pH and osmotic balance. * Sulfur (S)Element of the essential amino acids methionine and cysteine. Contained in the vitamins thiamin and biotin. As part of glutathione it is required for detoxification. Poor growth due to reduced protein synthesis and lower glutathione levels potentially increasing oxidative or xenobiotic damage are consequences of low sulfur and methionine and/or cysteine intake. * Iron (Fe)Contained in hemoglobin and myoglobin which are required for oxygen transport in the body. Part of the cytochrome p450 family of enzymes. Anemia is the primary consequence of iron deficiency. Excess iron levels can enlarge the liver, may provoke diabetes and cardiac falurer. The genetic disease hemochromatosis results from excess iron absorption. Similar symptoms can be produced through excessive transfusions required for the treatment of other diseases. * Copper (Cu)Contained in enzymes of the ferroxidase (ceruloplasmin?) system which regulates iron transport and facilitates release from storage. A structural element in the enzymes tyrosinase, cytochrome c oxidase, ascorbic acid oxidase, amine oxidases, and the antioxidant enzyme copper zinc superoxide dismutase. A copper deficiency can result in anemia from reduced ferroxidase function. Excess copper levels cause liver malfunction and are associated with genetic disorder Wilson's Disease * Manganese (Mn)Major component of the mitochondrial antioxidant enzyme manganese superoxide dismutase. A manganese deficiency can lead to improper bone formation and reproductive disorders. An excess of manganese can lead to poor iron absorption. * Iodine (I)Required for production of thyroxine which plays an important role in metabolic rate. Deficient or excessive iodine intake can cause goiter (an enlarged thyroid gland). * Zinc (Zn)Important for reproductive function due to its use in FSH (follicle stimulating hormone) and LH (leutinizing hormone). Required for DNA binding of zinc finger proteins which regulate a variety of activities. A component of the enzymes alcohol dehydrogenase, lactic dehydrogenase carbonic anhydrase, ribonuclease, DNA Polymerase and the antioxidant copper zinc superoxide dismutase. An excess of zinc may cause anemia or reduced bone formation. * Selenium (Se)Contained in the antioxidant enzyme glutathione peroxidase and heme oxidase. Deficiency results in oxidative membrane damage with different effects in different species. Human deficiency causes cardiomyopathy (heart damage) and is known as Keshan's disease. * Fluorine (Fl)* Cobolt (Co)Contained in vitamin B12. An excess may cause cardiac failure. * Molybdenum (Mo)Contained in the enzyme xanthine oxidase. Required for the excretion of nitrogen in uric acid in birds. An excess can cause diarrhea and growth reduction. * Chromium (Cr)A cofactor in the regulation of sugar levels. Chromium deficiency may cause hyperglycemia (elevated blood sugar) and glucosuria (glucose in the urine). Rats have been shown to have improved growth on diets which contain other micro nutrients. These include: * Lead (Pb)* Nickel (Ni)* Silicon (Si)* Vanadium (Vn)These elements are all toxic at high levels. Source:http://www.csua.berkeley.edu/~wuhsi/elements.htmlEducational Website
How are FSH and LH involved in reproduction?
the follicle stimulation hormone is produced by the putuitary gland which stimulates the hormone oestrogen to releases eggs. the lh causes the released eggs to go to the follopian tube
What hormone do the home ovulation tests test for?
These tests detect an increase of Luteinizing Hormone (LH)in urine.
What does a Clearblue easy ovulation test do?
Clear Blue easy ovulation test measures the amount of LH hormone and lets you know if you are ovulating at this time. This is done with a simple urination test.
Can an Ovulation Test still work if your tubes are blocked?
yes it will still work because the test does not detect the egg, it detects the LH hormone. the hormone that comes with ovulation.
Can an ovulation test give a result of being pregnant already instead of ovulation results?
female body produce diferent hormones during ovulation and pregrance, LH one day before ovulation and HCG during pregrance.However both this hormones have simillarity and ovulation predictory kit can be used like e pregrance test, but pregrance test cant be used us ovulation test kit.
Which hormone stimulates the corpus luteum to produce progesterone and estrogen?
Luteinizing Hormone (LH)
Why did Tommy fail his test in history class?
because when the question asked who was sachajewia he awnsered, a sack of jewia- Lh Y09TA28
What does 4 days of LH surge mean?
4 days of LH surge is a POSSIBILITY that you are pregnant. Its not for certain but because HCG and LH hormones are so closely related it can show up positive with you being pregnant but the only way to know for sure is to wait about 4 weeks. The placenta starts to form around then and the HCG increases. Thats a better time to test and if you are go to the doctor to be positive and make sure you get a blood test done.
Is it possible to ovulate 24 hours after detecting a surge in LH?
OK, first a bit of background on LH (luteinizing hormone). This is released in two parts of your cycle, right at the beginning to mature an egg and in the middle of the cycle to cause ovulation. According to my notes, ovulation occurs approx. 34-36 hours after the onset of the LH surger or 10-12 hours after the LH peak. I do not know the specifics of your test, but if it tests for a peak LH level, then the egg will be released 10-12 hours after the peak. If it just detects a rise in LH, then it will be approx a day and a half later. Hope that helps. Student Doctor.
Abbreviations used in maternity?
OLP OLA LH LSP SNC RDS
When did LH Sumanadasa die?
LH Sumanadasa died in 1986.
What Is LH Machine?
A LH Machine is a machine related to Sesimograph
