Allergy or Hypersensitivity

Allergy An allergy is an exaggerated reaction by the immune system in response to exposure to certain foreign substances. The response is exaggerated because these foreign substances are normally seen as harmless by the immune system in nonallergic individuals and do not cause a response in them.
In allergic individuals, the body recognizes the substance as foreign, and the allergic part of the immune system generates a response. Allergy-producing substances are called "allergens." Examples of allergens include pollens, dust mites, molds, animal proteins, foods, and medications. When an allergic individual comes in contact with an allergen, the immune system mounts a response through the IgE antibody. IgE is the allergic antibody. IgE is medically important for two reasons.
1- It mediate hypersensitivity ( Allergy/ anaphylactic).
2- It participate in host defense against certain parasites (such as helminths like Schistosoma mansoni, Trichinella spiralis, and Fasciola hepatica). The serum IgE level is usually increased in these infections. Because worms are too large to be ingested by phagocytes, they are killed by eosinophils that release worm-destroying enzymes. The other antibodies, IgG, IgM, and IgA, defend against infection. People who are prone to allergies are said to be allergic or "atopic." • Although many individuals outgrow allergies over time, allergies can also develop at any age, including during adulthood. • The environment plays a role in the development of allergy, as do genetics. There is a greater risk of developing allergic conditions if a person has a family history of allergy, especially in parents or siblings. hygiene hypothesis Many parents believe that their children must be kept in an environment that is as clean as possible, but some research suggests that being exposed to what many would call unclean conditions is good for a child's immune system. Research has indicated that children who are kept in very clean environments have a higher rate of hay fever, asthma and a wide range of other conditions. This is what is called the hygiene hypothesis #WhatIsAllergy #Allergens #howAllergyDevelop

[@YahyaKhan-ol2zi]

ماشاء اللہ
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[@user-nb6cd7jn6z]

Amazing lecture thank you sir

[@trendyjewelry]

Sir aap bahut acha padha te hin, and usefull topics cover karte hain, pls sir aage bhi banate rahe re isse hamare time bhi efficient use karne mi madat karte hi

[@hh12500]

Such a nice lecture! 👍

[@mohsinmemon4356]

Thanks a lot sir amazing lacture

[@mukhtiarali1516-k9p]

Good sir ❤️

[@nokibiu]

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[@muhammadRizwan-iu8uh]

I love your teaching way sir❤

[@localvalg336]

Allah apko bhot khushe raka

[@user-mo4uo7wo6l]

It's easy to understand, well explained.

[@Haroonkhan12341]

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[@numansarwar4300]

Bohat acha explain kia hai bhai

[@ansarubab237]

Big Thankyou for clearing my concepts

[@user-bz7wc5lh6w]

Thank you sir😊
Such a nice explanation... ❤

[@shoaibahmed1965]

thank you for your service sir

[@Sultan2sufi]

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[@dr.yashkarsyal2927]

Very nicely explainrd.

[@rinasahu6829]

Thank you sir for this video

[@parisa978]

Sir apky lecture ny sary concepts clear krdye.. kindly.. hypersensitivity ki typs bh upload krdin ...i watched many videos but understand the concept from your teaching way.... Kindly upload hypersensitivity types 1'2'3'4...
Thanks

[@bhatasiya1274]

Wounderful

[@smile-eq5le]

Thank you so much sir 😊

[@beautyofthoughts2522]

Sir various types of immunoglobulins pr bhi video baniye 🙏

[@vishalcherpa8108]

difference between bacteriophage and virus

[@yahyajadoon9837]

Bacteriophage are also called bacterial virus bcz they attack upon bacteria

[@numansarwar4300]

Good jobs bro

[@nutritionistzohaibali7733]

Good 👍

[@kashifbhutta9145]

Sir je types of hypertensisitivity per bhi vedio banae

[@mrxtraa4673]

What is treatement of Food Allergy .
Produces Histamine

[@entertainingworld1210]

Sir please go through BSN licture

[@shoukatalirind786]

Great

[@outsider477]

Sir you skip chap 8 9 10

[@chandbabukhanchandbabukhan9005]

thank u sir

[@s-ansari...]

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[@hanzalakhan3989]

Sir plz ap cell structure and function wala chapter kai complete lecture upload kare

[@emankhan8629]

Tnk u Soo much sir

[@waleedrehman33]

asalmowailkom sir

[@abhisheksinghsisodiya1167]

Thnk u sir

[@localvalg336]

Sir plz biochemistry bi start kr do

[@forsagenetworker1953]

🌺

[@sonudevi9360]

Jay shree ram 🕉️

[@user-he3fz8oc3n]

😂

[@Ayesha-gamingwc8lv]

😂😂😂

[@ShehzadAhmad-y8o]

Brian washer of modi

[@sobankhan1985]

sir kia apke khud k bnaye hue notes hme khi se mil skte ha

[@faisalnawaz8830]

Sir treatment be bata dete

[@maryoommaryoom4855]

Inho ny types nhi karwaye?😢

[@atifhussain2471]

Koi Sir k transport in Animals ka link share kr de plz

[@s-ansari...]

Assalamualaikum

[@bulbulangel521]

Aap publicly lecture upload kr rhe to sbhi dekhte h jruri nhi sirf muslims hi aapka lecture dekhe isiliye plz aap hindi bola kro rather than urdu kyu ki smjh nhi aati

[@bhatasiya1274]

W alekum asalam

[@TajMuhammad-o9z]

❤❤❤❤❤❤❤❤❤❤🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉

[@YahYaKhan-pt8he]

Hypersensitivity type

[@medicoboy165]

Why allergens people produce IgE antibody while normal person produce IgG antibody.

[@yahyajadoon9837]

Bcz Hypersensitivity or allergic produce IgE while normal person do not have any allergy do IgE is not produce IgG is produced

[@reebach7310]

Sir plzzzzz reply

[@bhatasiya1274]

W alekum asalam