Primary Country (Mandatory)

United States

Other Country (Optional)

Set News Language for United States

Primary Language (Mandatory)
English
Other Language[s] (Optional)
No other language available

Set News Language for World

Primary Language (Mandatory)
English
Other Language(s) (Optional)

Set News Source for United States

Primary Source (Mandatory)
CNN
Other Source[s] (Optional)

Set News Source for World

Primary Source (Mandatory)
AajTak
Other Source(s) (Optional)
  • Countries
    • India
    • United States
    • Qatar
    • Germany
    • China
    • Canada
    • World
  • Categories
    • National
    • International
    • Business
    • Entertainment
    • Sports
    • Special
    • All Categories
  • Available Languages for United States
    • English
  • All Languages
    • English
    • Hindi
    • Arabic
    • German
    • Chinese
    • French
  • Sources
    • India
      • AajTak
      • NDTV India
      • The Hindu
      • India Today
      • Zee News
      • NDTV
      • BBC
      • The Wire
      • News18
      • News 24
      • The Quint
      • ABP News
      • Zee News
      • News 24
    • United States
      • CNN
      • Fox News
      • Al Jazeera
      • CBSN
      • NY Post
      • Voice of America
      • The New York Times
      • HuffPost
      • ABC News
      • Newsy
    • Qatar
      • Al Jazeera
      • Al Arab
      • The Peninsula
      • Gulf Times
      • Al Sharq
      • Qatar Tribune
      • Al Raya
      • Lusail
    • Germany
      • DW
      • ZDF
      • ProSieben
      • RTL
      • n-tv
      • Die Welt
      • Süddeutsche Zeitung
      • Frankfurter Rundschau
    • China
      • China Daily
      • BBC
      • The New York Times
      • Voice of America
      • Beijing Daily
      • The Epoch Times
      • Ta Kung Pao
      • Xinmin Evening News
    • Canada
      • CBC
      • Radio-Canada
      • CTV
      • TVA Nouvelles
      • Le Journal de Montréal
      • Global News
      • BNN Bloomberg
      • Métro
MoreBack to News Headlines
How your immune system reacts through anaphylactic shocks to protect you from the “invaders”

How your immune system reacts through anaphylactic shocks to protect you from the “invaders”

The Hindu
Thursday, April 17, 2025 10:41 AM GMT

Learn about anaphylaxis, a severe allergic reaction, its symptoms, causes, diagnosis, treatment, prevention, and importance of awareness.

Imagine you are eating takeout, and suddenly you feel like you are getting breathless and it’s getting difficult for you to swallow the food. You also feel itchiness in several parts of your body. These might be symptoms of an allergic reaction or anaphylaxis. When you are allergic to a certain food item or object, and you accidentally consume the same, your immune system reacts to protect you from the “invader”. This immune response leads to the release of a flood of chemicals, which cause symptoms of an allergic reaction.

An anaphylactic shock is a more severe, life-threatening allergic reaction that occurs after exposure to an allergen. It is a rapidly progressing anaphylaxis resulting in a life-threatening drop in blood pressure. It is a medical emergency that requires immediate attention and can affect multiple organ systems in the body, including the respiratory, cardiovascular, gastrointestinal, and skin systems. Understanding its causes, symptoms, diagnosis, and treatment is essential in managing this critical condition effectively.

The most common allergens that can cause anaphylaxis include:

- Foods like peanuts, tree nuts, shellfish, milk, eggs, soy, and wheat are frequent culprits.

- Medications, including antibiotics like penicillin and some anaesthetics, can induce anaphylaxis.

- Bee, wasp, hornet, and ant stings or bites can also be triggers.

Anaphylactic shock occurs when the immune system produces immunoglobulin E (IgE) antibodies (a type of antibody primarily involved in allergic reactions and parasitic infections, produced by the immune system to defend against allergens and other threats) in response to an allergen. Upon re-exposure, the allergen binds to these antibodies on the mast cells and basophils (both are white blood cells in the immune system), causing them to release large amounts of histamine and other inflammatory mediators (naturally occurring chemical compounds that play a crucial role in the body’s immune response).

Read full story on The Hindu
Share this story on:-
Run 3 Space | Play Space Running GamePlay Run 3, the ultimate space tunnel running game with 300+ challenging levels!Adv.
Traffic Jam 3D | Online Racing GameTraffic Jam 3D is a game where you’ll be driving through heavy traffic.Adv.
Duck Hunt | Play Old Classic GamePlay the classic 1984 light gun shooter game Duck Hunt on your browser.Adv.
More Related News
Indian astronaut Shubhanshu Shukla’s mission to International Space Station postponed once again

ISRO postpones Axiom-4 mission launch to ISS for Indian astronaut due to weather conditions, rescheduled for June 11.

Picture of the week: The superhumans of Mumbai

In Mallakhamb, a traditional performative sport from India, performers balance themselves on a pole and perform acrobatics.

‘Magical’ new technique brings very dilute samples into focus Premium

New MagIC method allows cryo-EM study of rare molecules at 100x lower concentration, aided by DuSTER computer workflow.

Physics changed AI in the 20th century. Is AI returning the favour? Premium

Discover how AI is transforming scientific research, from predicting protein structures to advancing quantum technologies.

Using bacteriophages to combat antimicrobial resistance Premium

Discover the potential solution to antibiotic resistance with bacteriophages, a natural alternative to combat bacterial infections effectively.

One of the oldest unsolved problems

On June 7, 1742, Prussian mathematician Christian Goldbach wrote a letter to Swiss polymath Leonhard Euler. Why does it warrant attention, you seem to be asking. Goldbach outlined a conjecture that bears his name in this letter, a conjecture that is now one of the oldest and most famous unsolved problems in all of number theory. Intrigued? A.S.Ganesh hands you more details about Goldbach and Goldbach’s conjecture…

Design finds from Chennai

Discover artisanal lifestyle products at Jaypore, Suvasa, and Bagh in Chennai, offering handcrafted decor, dinnerware, and textiles.

The link between leprosy and climate-change that we did not know about: an Indian story Premium

Leprosy resurfaces in India due to climate change, poverty, and stigma, demanding urgent interventions and visibility.

Commercial real estate booming in non-metros

Amit Ramani of Awfis Space Solutions discusses the transformative growth trajectory of India's commercial real estate sector.

Heritage gets a makeover at Patiala’s Ran Baas The Palace

Discover the grandeur of Patiala's Qila Mubarak complex and Ran Baas The Palace, a luxury heritage hotel in Punjab.

How the Kalamkari craft travelled from Srikalahasti to Thanjavur

Preserving the endangered art of Kalamkari through generations, Rajmohan and Narayanan keep tradition alive with quiet persistence.

Heaviest proton emitter astatine-188 detected Premium

International collaboration led by University of Jyväskylä detects and measures proton emission from heaviest proton emitter 188At isotope.

The Old House in Kathmandu blends Nepali history with inventive cocktails

Experience nostalgia at The Old House in Kathmandu's Durbar Marg with award-winning cocktails and Newari-inspired design.

Parking Slot | Free Parking GamePlay Parking Slot, the best online 3D car driving and parking game.Adv.
Slope Ball Run - Play OnlineSlope Game takes you on an exciting journey of a ball on special paths.Adv.
What made Boeing 787s popular – and later a cause for concern Premium

Air India flight AI171 crash details, Boeing 787-8 Dreamliner design, engine specifics, and safety concerns explained.

Waymo leads autonomous taxi race in the U.S.

Waymo’s autonomous vehicles have become part of the everyday landscape in a growing number of U.S. cities.

Pride Month 2025| Interfaith Pride Fest to be held in Hyderabad

Interfaith Pride Fest in Hyderabad on June 14 celebrates queerness and spirituality, offering a safe space for expression and reflection.

How safe AI is in healthcare depends on the humans of healthcare Premium

AI tools are quietly reshaping Indian healthcare. From foetal ultrasound dating and high-risk-pregnancy guidance to virtual autopsies and clinical chatbots, they are matching expert accuracy while accelerating workflows. Yet their promise comes entwined with the systemic challenges of data and automation bias, privacy, and weak regulation, often exacerbated by the sensitivities of the healthcare sector itself.

Kerala University’s archaeological excavation unearths 5,300-year-old Early Harappan settlement in Gujarat

University of Kerala archaeologists uncover 5,300-year-old Early Harappan settlement near Lakhapar village in Gujarat, revealing unique cultural insights.

Watch: A beginner’s guide to brewing coffee

Divya Jayashankar at Beachville Coffee Roasters takes us through a beginner-friendly guide to coffee brewing methods in Chennai.

Elon Musk says Tesla’s robotaxi service to “tentatively” launch in Austin on June 22

The Austin Tesla rollout also comes after Musk had a public blow-up with U.S. President Donald Trump over the administration’s tax bill.

Monsoon-loving Indian expats chase rain in UAE desert

Indian expat in UAE chases elusive rain in the desert, using high-tech tools to forecast and enjoy monsoon nostalgia.

VinFast’s India strategy will have an entire EV ecosystem, including strong dealership presence in Tier two and three cities

VinFast’s entry into India is a strategic one, and it comes with real investment. The company is setting up a manufacturing facility in Tuticorin, Tamil Nadu, with an initial capacity of 50,000 vehicles per year, scalable to 150,000 units annually. With an investment of up to USD 500 million, this is not a soft launch—it is a full-fledged push into what is one of the world’s most promising auto markets.

What is the origin of gravity? Premium

Isaac Newton and Albert Einstein's theories on gravity explained, from mass and distance to spacetime deformation and energy.

Why do we use QWERTY keyboards?

The history of the QWERTY keyboard layout and why it remains the standard despite more efficient alternatives available.

The story of how heeng came to be successfully cultivated in India Premium

Heeng, an essential ingredient in Indian cuisines, is successfully cultivated in India, reducing import dependence and enhancing farmer incomes.

© 2008 - 2025 Webjosh  |  News Archive  |  Privacy Policy  |  Contact Us