How Do You Spell DELAYED HYPERSENSITIVITIES?

Pronunciation: [dɪlˈe͡ɪd hˌa͡ɪpəsənsɪtˈɪvɪtiz] (IPA)

Delayed Hypersensitivities is a medical term that refers to a type of immune response that develops slowly, usually over several hours or days after exposure to an allergen. The word is spelled phonetically as /dɪˈleɪd hʌɪpərsɛn'sɪtɪvɪtiz/. The 'd' in delayed is pronounced like a 'j' sound in 'jump', and the 'e' is pronounced like an 'a' in 'ate'. The stress falls on the second syllable. Hypersensitivities is pronounced with stress on the third syllable and the middle 's' is pronounced like a 'z' sound. The last syllable is pronounced like 'tees'.

DELAYED HYPERSENSITIVITIES Meaning and Definition

1. Delayed hypersensitivity refers to a type of immune response characterized by a delayed onset and a prolonged reaction to a specific antigen. This immune response is mediated by T lymphocytes (white blood cells) and is commonly associated with the immune system's protective response against certain infections, as well as the development of allergic reactions. Delayed hypersensitivity reactions typically occur within 24 to 72 hours after exposure to the antigen, distinguishing them from immediate hypersensitivity reactions that occur within minutes.

   When the body encounters an antigen for the first time, dendritic cells present the antigen to T cells, stimulating their activation. The activated T cells then release chemical mediators called cytokines, which recruit other immune cells such as macrophages, leading to a cascade of inflammatory responses. These immune cells cause damage to the surrounding tissue, resulting in inflammation and clinical manifestations such as redness, swelling, and pain.

   Delayed hypersensitivity reactions are often associated with conditions like allergic contact dermatitis and tuberculosis skin tests. Allergic contact dermatitis occurs when an individual develops an immune reaction to a substance they have previously been sensitized to, such as certain metals or chemicals, resulting in a localized skin rash. Tuberculosis skin tests assess an individual's immune response to Mycobacterium tuberculosis, the bacteria that causes tuberculosis, by injecting a purified protein derivative from the bacteria into the skin and observing the reaction.

   Delayed hypersensitivities play a critical role in several immune responses, but can also lead to chronic inflammation and tissue damage if dysregulated or prolonged.

Common Misspellings for DELAYED HYPERSENSITIVITIES

• selayed hypersensitivities
• xelayed hypersensitivities
• celayed hypersensitivities
• felayed hypersensitivities
• relayed hypersensitivities
• eelayed hypersensitivities
• dwlayed hypersensitivities
• dslayed hypersensitivities
• ddlayed hypersensitivities
• drlayed hypersensitivities
• d4layed hypersensitivities
• d3layed hypersensitivities
• dekayed hypersensitivities
• depayed hypersensitivities
• deoayed hypersensitivities
• delzyed hypersensitivities
• delsyed hypersensitivities
• delwyed hypersensitivities
• delqyed hypersensitivities
• delated hypersensitivities

Etymology of DELAYED HYPERSENSITIVITIES

The etymology of the term "Delayed Hypersensitivities" can be broken down as follows:

1. Delayed: This word comes from the Middle English word "delayen" which means "to postpone" or "to put off". It originated from the Old French word "delaiier" and Latin word "delatare", both meaning "to put off" or "to prolong".

2. Hypersensitivities: This term is a combination of two words - "hyper" and "sensitivities".

- Hyper: This word comes from the Greek prefix "hyper-" which means "over" or "excessive". It can be traced back to the Greek word "huper" meaning "above".

- Sensitivities: This word is derived from the Latin word "sensitivus", which means "capable of feeling".