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Related Concept Videos

Introduction to the Human Microbiota01:22

Introduction to the Human Microbiota

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Microorganisms colonize various regions of the human body, including the mouth, nasal passages, throat, stomach, intestines, urogenital tract, and skin. The total number of microbial cells is estimated to range from 10¹³ to 10¹⁴—comparable to, or exceeding, the number of human somatic cells. This host–microbiome relationship has led to the conceptualization of humans as supraorganisms, wherein microbial communities perform vital roles in development, immunity,...
136
Development of Human Microbiota01:30

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The human microbiota begins developing at birth and undergoes continual change as we age. Infancy marks a critical period of microbial sensitivity, offering a “window of opportunity” during which beneficial microbes help mature the immune system. By age three, children typically develop a more stable and diverse microbial community. Newborns acquire microbes from their immediate environment; vaginal delivery favors maternal vaginal microbes, while cesarean births favor microbes from...
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Development of the Oral Microbiota01:28

Development of the Oral Microbiota

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The establishment of the oral microbiome begins before birth, challenging the long-held belief that the fetal oral cavity is sterile. The presence of oral microbes such as Streptococcus and Fusobacterium in amniotic fluid suggests that microbial exposure may occur in utero, potentially through translocation from the maternal oral or gastrointestinal tract. This early colonization primes the neonatal immune system and sets the stage for subsequent microbial succession. Maternal health,...
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Methods to Assess Microbial Communities01:19

Methods to Assess Microbial Communities

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Microbial communities, comprising bacteria, archaea, and eukaryotic microorganisms, inhabit diverse ecosystems and play crucial roles in environmental and biological processes. Their diversity is defined by three main parameters: species richness (the number of distinct species), species abundance (the relative quantity of each species), and species evenness (how uniformly individual species are distributed in various locations). These factors together shape the structure and ecological balance...
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Applications of Molecular Taxonomy01:20

Applications of Molecular Taxonomy

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Molecular taxonomy has revolutionized the understanding and classification of bacteria, providing precise insights into their diversity, evolutionary relationships, and ecological roles. By utilizing molecular techniques such as DNA sequencing and fingerprinting, researchers have made significant strides in various fields related to bacterial studies.Resolving Taxonomic AmbiguitiesMolecular taxonomy has been instrumental in distinguishing closely related bacterial species initially thought to...
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Microorganisms in Medicine and Therapeutics01:29

Microorganisms in Medicine and Therapeutics

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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.
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Related Experiment Video

Updated: Apr 22, 2026

Microbiota Analysis Using Two-step PCR and Next-generation 16S rRNA Gene Sequencing
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Microbiota Analysis Using Two-step PCR and Next-generation 16S rRNA Gene Sequencing

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Advancing the microbiome research community.

Curtis Huttenhower1, Rob Knight2, C Titus Brown3

  • 1Department of Biostatistics, Harvard School of Public Health, Boston, MA 02115, USA; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA.

Cell
|October 11, 2014
PubMed
Summary
This summary is machine-generated.

The human microbiome is key to health. Improving research, analysis, standardization, and policy will advance our understanding of microbiome biology.

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Area of Science:

  • Microbiology
  • Human Health
  • Interdisciplinary Research

Background:

  • The human microbiome's role in health is increasingly recognized.
  • This field is rapidly developing, presenting new research avenues.

Purpose of the Study:

  • To outline key opportunities for advancing human microbiome research.
  • To highlight the importance of interdisciplinary collaboration, analytical rigor, standardization, and policy development.

Main Methods:

  • Review and synthesis of current trends in microbiome research.
  • Identification of critical areas for future development.

Main Results:

  • Significant opportunities exist in interdisciplinary research.
  • Enhancing analytical rigor and standardization is crucial.
  • Policy development is needed to support the field's growth.

Conclusions:

  • Addressing these opportunities will accelerate understanding of human microbiome biology.
  • Interdisciplinary approaches and robust methodologies are vital for progress.