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Defense Mechanism Against Infection01:26

Defense Mechanism Against Infection

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Natural flora, body system defenses, and inflammation are natural barriers of the body against infectious agents regardless of previous exposure. Normal floras of the human body refer to the microbial population that colonizes the skin and mucous membranes.
In addition, many body organ systems have unique defenses against infection. The skin is an intact, multilayered surface preventing invasion by microorganisms unless impaired. Mucous membranes lining the mouth, nose, and eyelids are barriers...
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The hosts' susceptibility to infection depends on several factors. The integrity of the skin and mucous membranes helps protect the body against microbial attacks. When the skin is altered, the chance of infection, limb loss, and even death increases.
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...
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The human immune system is a complex defense mechanism that protects the body from harmful pathogens and foreign substances. It comprises two crucial components: innate and adaptive immunity.
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Immunity is a crucial biological concept about our body's inherent capacity to prevent infections and diseases. A complex network of cells and tissues collectively known as the immune system facilitates this natural defense mechanism. The immune system plays an integral role in maintaining our health and well-being, shielding us from potential health threats.
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Immunity, along with the ability to limit pathogen growth to prevent significant body tissue damage, can be gained either by (1) actively developing an immune response within the individual after exposure to a pathogen or after getting vaccinated or (2) passively transferring immune components from an immune individual to one who is nonimmune. Both these forms of immunity can be found naturally and in medical practices.
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Natural Ingredients to Improve Immunity.

Amin Gasmi1, Mariia Shanaida2, Oleksandra Oleshchuk2

  • 1Société Francophone de Nutrithérapie et de Nutrigénétique Appliquée, 69100 Villeurbanne, France.

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PubMed
Summary

A balanced immune system is crucial for health. Natural compounds from plants and fungi can enhance immunity by boosting immune cell activity and providing antioxidant benefits.

Keywords:
antioxidantsdosagesimmunomodulatorsmedicinal plantsmelatoninmineralsnatural bioactive compoundsprebioticsprobioticspropolisvitamins

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Area of Science:

  • Immunology
  • Nutritional Science
  • Pharmacology

Background:

  • The immune system comprises innate and adaptive arms that protect against pathogens.
  • Balanced immunity is vital; insufficient defense leads to infections and tumors, while overactivity causes autoimmune diseases and allergies.
  • Adequate nutrition, including vitamins (C, D, folic acid) and minerals (magnesium, zinc, selenium), supports strong immunity.

Purpose of the Study:

  • To review the molecular mechanisms of immune-enhancing properties of bioactive compounds from natural sources.
  • To explore how phytoconstituents, probiotics, prebiotics, and melatonin modulate immune responses.
  • To understand the role of these compounds in augmenting immune cell activity and providing protective effects.

Main Methods:

  • Literature review of scientific studies on natural compounds and their effects on the immune system.
  • Analysis of research on bioactive constituents like polyphenols, terpenoids, beta-glucans, and melatonin.
  • Examination of studies investigating the impact of probiotics, prebiotics, and micronutrients on immune function.

Main Results:

  • Natural ingredients, including plants and fungi, possess potent immunomodulatory properties.
  • Bioactive compounds like polyphenols, terpenoids, and beta-glucans enhance immune cell (NK cells, macrophages, neutrophils) cytotoxic activity.
  • Phytoconstituents offer antimicrobial, antioxidant, and anti-inflammatory benefits, protecting cells from damage.

Conclusions:

  • Bioactive compounds from diverse natural sources can significantly augment immune responses.
  • These compounds offer a promising avenue for supporting immune health and preventing immune-related disorders.
  • Further research into molecular mechanisms can lead to novel therapeutic strategies for immune modulation.