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Related Concept Videos

Immunodeficiency Diseases01:25

Immunodeficiency Diseases

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Immunodeficiency disorders are conditions in which the immune system's ability to fight infectious disease and cancer is compromised or entirely absent. The immune system comprises a complex network of cells, tissues, and organs that work together to protect the body from potentially harmful invaders. When this system is deficient or not functioning properly, it leaves the body susceptible to infections, diseases, or other complications.
There are three main causes of immunodeficiency...
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Primary Active Transport01:47

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In contrast to passive transport, active transport involves a substance being moved through membranes in a direction against its concentration or electrochemical gradient. There are two types of active transport: primary active transport and secondary active transport. Primary active transport utilizes chemical energy from ATP to drive protein pumps that are embedded in the cell membrane. With energy from ATP, the pumps transport ions against their electrochemical gradients—a direction...
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In contrast to passive transport, active transport involves a substance being moved through membranes in a direction against its concentration or electrochemical gradient. There are two types of active transport: primary active transport and secondary active transport. Primary active transport utilizes chemical energy from ATP to drive protein pumps embedded in the cell membrane. With energy from ATP, the pumps transport ions against their electrochemical gradients—a direction they would...
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Vascular plants, which account for over 90% of the Earth’s vegetation, all undergo primary growth—which lengthens roots and shoots. Many land plants, notably woody plants, also undergo secondary growth—which thickens roots and shoots.
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Primary Distribution01:28

Primary Distribution

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Primary distribution systems deliver electrical power from substations to consumers through various voltage classes, with 15-kV class voltages being predominant among U.S. utilities. Older 2.5- and 5-kV classes are being replaced by 15-kV primaries, while higher 25- to 34.5-kV classes are used in high-density urban areas and rural regions with long feeders. Three-phase, four-wire multigrounded systems are widely employed for balanced power delivery, using the neutral wire as a grounding point.
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Primary Production01:06

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The total amount of energy acquired by primary producers in an ecosystem is called gross primary production (GPP). However, of this energy, producers use some for metabolic processes, and some is lost as heat, decreasing the amount of energy available to the next trophic level. The remaining usable amount of energy is called the net primary productivity (NPP). In terrestrial ecosystems, NPP is driven by climate, while light penetration and nutrient availability drive NPP in aquatic ecosystems.
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Bioengineering Human Microvascular Networks in Immunodeficient Mice
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Primary Immunodeficiency in the NICU.

Amy E O'Connell1

  • 1Division of Newborn Medicine, Boston Children's Hospital, and Department of Pediatrics, Harvard Medical School, Boston, MA.

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PubMed
Summary
This summary is machine-generated.

Primary immunodeficiency disorders (PIDs) are genetic conditions causing infections. Early identification and management in neonates are crucial for reducing infection risk.

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Area of Science:

  • Immunology
  • Genetics
  • Neonatology

Background:

  • Primary immunodeficiency disorders (PIDs) are genetic conditions increasing infection susceptibility.
  • A subset of PIDs presents in the neonatal period, complicating diagnosis due to infant immune immaturity.
  • Early PID identification and management are critical for neonates, especially premature infants.

Purpose of the Study:

  • To highlight the importance of recognizing PIDs in neonates.
  • To guide neonatal clinicians on PID presentations and initial management.
  • To emphasize the role of immunologist consultation and newborn screening.

Main Methods:

  • Review of PID presentations in the neonatal period.
  • Discussion of diagnostic challenges differentiating PIDs from immune immaturity.
  • Outline of initial laboratory evaluation and management strategies.

Main Results:

  • Neonatal clinicians must be aware of specific PIDs presenting in newborns.
  • Differentiating PIDs from intrinsic immune immaturity requires careful evaluation.
  • Newborn screening for severe combined immunodeficiency is essential.

Conclusions:

  • Early recognition and intervention for PIDs in neonates are vital.
  • Collaboration with immunologists is key for suspected PID cases.
  • Familiarity with initial management reduces infection risk in affected infants.