Early life antibiotic exposure and host health: Role of the microbiota-immune interaction

Timothy Wang1, Natsumon Udomkittivorakul1, Madeline Bonfield2

  • 1Division of Neonatology and Pulmonary Biology, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH 45219, USA.

Seminars in Perinatology
|November 14, 2020
PubMed

Insights

Neonatal infections risk is high due to developing immune systems. Antibiotic disruption of the gut microbiota may increase neonatal complications and long-term inflammatory diseases.

Area of Science:

  • Immunology
  • Microbiology
  • Neonatal Health

Background:

  • Neonates possess unique, developing immune systems, making them susceptible to infections.
  • Environmental factors, especially the gut microbiota, significantly influence immune system development.
  • Antibiotic use can disrupt the neonatal microbiota, impacting immediate and long-term health.

Purpose of the Study:

  • To review mechanistic interactions between the microbiota and the immune system in early life.
  • To explore how antibiotic-induced microbiome alterations contribute to neonatal disease.

Main Methods:

  • Literature review of existing studies on neonatal microbiota and immunity.
  • Analysis of cellular and molecular mechanisms linking microbiota to neonatal outcomes.
  • Examination of antibiotic effects on the microbiome and subsequent health implications.

Main Results:

  • The gut microbiota plays a critical, modifiable role in neonatal immune development.
  • Antibiotic exposure is associated with increased neonatal infection risk and long-term inflammatory conditions.
  • Specific mechanisms underlying these associations require further investigation.

Conclusions:

  • Understanding microbiota-immune interactions is crucial for neonatal health.
  • Targeting the microbiome may offer novel strategies for preventing neonatal infections and diseases.
  • Further research into antibiotic-mediated microbiome disruption is warranted.

Related Concept Videos

Anatomy of the Intestines01:23

Anatomy of the Intestines

Although digestion of proteins, carbohydrates, and lipids may begin in the stomach, it is completed in the intestine. The absorption of nutrients, water, and electrolytes from food and drink also occurs in the intestine. The intestines can be divided into two structurally distinct organs—the small and large intestines.
Small Intestines
The small intestine is an ~7 meter-long tube with an inner diameter of just 2.5 cm. Since most nutrients are absorbed here, the inner lining of the...
85.9K
Microorganisms in Medicine and Therapeutics01:29

Microorganisms in Medicine and Therapeutics

Microorganisms play a fundamental role in vaccine development, gene therapy, and therapeutic production. Their biological properties are harnessed to advance medicine and public health. Beyond immunization, microorganisms contribute to gut health, antibiotic synthesis, and genetic disease treatment.Live Attenuated and Inactivated VaccinesLive attenuated vaccines, such as the measles, mumps, and rubella (MMR) vaccine, utilize weakened forms of pathogens to closely resemble natural infections.
710
Factors Affecting the Risk of Infection01:26

Factors Affecting the Risk of Infection

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...
13.1K
Defense Against Bacterial Pathogens01:31

Defense Against Bacterial Pathogens

The human immune system is a complex network of cells, tissues, and organs that work together to defend the body against bacterial infections. It consists of various immune cells, each playing a specific role in the defense mechanism.
Phagocytes
Phagocytes are the frontline soldiers of the immune system. They include neutrophils and macrophages. Neutrophils are the most abundant type of white blood cell and are quickly mobilized to the site of infection. Macrophages are larger cells that patrol...
1.8K
Defense Mechanism Against Infection01:26

Defense Mechanism Against Infection

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...
8.3K
Development of Immunocompetence01:22

Development of Immunocompetence

The initiation of cell-mediated immunity can be observed as early as the third month of fetal growth, with active antibody-mediated immunity following approximately one month later.
The initial cells that migrate from the fetal thymus settle within the skin and epithelial tissues lining the mouth, digestive tract, and in females, the uterus and vagina. These cells, including skin-based dendritic cells, serve as antigen-presenting cells, playing a key role in T cell activation.
Subsequent T...
600