Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Define Inhibitors and Enhancers - absorption of dietary iron?
Phytates and fibre from whole grain cereals, tannins and polyphenols in tea, oxalates in green leafy vegetables like spinach and excess calcium taken as supplements can all depress non-haem iron absorption significantly, by forming insoluble components. The Indian vegetarian diet consisting predominantly of cereals and pulses, high in phytates, has a low iron bioavailability. This is further compromised when tea is drunk with a meal, as polyphenols in tea depress iron absorption. Iron absorption from wheat has been reported to be 5%.
However, when tea is taken with a breakfast meal comprising of wheat chapattis and potato vegetable, the reported absorption has been only 1.8%. Ragi balls or sorghum breakfast with potato vegetable and tea resulted in only 0.8-0.9% absorption of iron. On the contrary, ascorbic acid is a potent enhancer of iron absorption. Addition of orange juice containing 40-50 mg ascorbic acid to a breakfast meal consisting of bread, eggs and tea was found to increase iron absorption from 3.7% to 10%. Thus, ascorbic acid can counter the inhibitory effect of tannins or phytates, producing a 2- 3 fold increase in iron absorption. Thus, ascorbic acid can enhance iron absorption in a number of ways. Firstly, it reduces insoluble feiric iron to soluble ferrous iron; secondly, ascorbic acid forms low molecular weight chelates with iron that remain soluble in the intestine; thirdly, ascorbic acid-iron chelates preferentially release the iron for absorption to the brush border. Together, these mechanisms ensure that dietary iron is well absorbed in the presence of ascorbic acid.
Advice on Discharge : Patients are allowed to go home on 8th or 9th day. It could be even earlier after off pump coronary artery surgery (OPCAB). They should gradually increase t
Q. Describe the rationale behind sterilization? Rationale for sterilization: Source of potential infection that exists in dental office include hands, saliva, nasal secretion,
A pure phospholipid bilayer with its hydrophobic interior, is permeable to water and gases such as O2, CO2, N2 and small uncharged polar molecules such as urea, ethanol, bu
Q. Can High blood pressure cause coronary sclerosis? High blood pressure causes coronary sclerosis (hardening in early stages, fatty lesions in the inner surface of [he artery
Q. How does the intensity of simple diffusion differ in relation to the concentration gradient of the moved substance? The higher the concentration gradient of a substance the
Explian Anthropometric measures Anthropometric measures : It measures growth in children and shows changes in weight in all populations that call reflect diseases an
It is a category of viruses having RNA genome and reverse transcriptase enzyme within virus cuspid.
Explain about the Foods Effect on Drug Utilization? The following illustrations highlight the effect of food on drug utilization. Liver and green leafy vegetables can decrea
The Social Environment When the child is admitted to the hospital his social environment is totally changed and all health team members are strangers for him. It is your resp
Protein Digestion Enzymes that digest proteins are divided into two groups endopeptidases and exopeptidases according to site of their action in the protein molecule. Endopept
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd