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Related Concept Videos

Pulmonary Hypertension: Classification and Pathogenesis01:30

Pulmonary Hypertension: Classification and Pathogenesis

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Pulmonary hypertension (PH) is a severe health condition in which the mean pulmonary arterial pressure increases to 25 mmHg or more, even when the body is at rest. This high pressure in the blood vessels that transport blood from the heart to the lungs can cause various symptoms, including shortness of breath, can lead to right heart failure, and significantly affect the overall quality of life.
There are various classifications for PH, each relating to different underlying causes and also...
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Asthma: Pathogenesis and Management01:20

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Asthma is a chronic pulmonary condition involving inflammation of the airways, hyper-reactivity, and reversible obstruction of the airways. This condition can significantly impact a person's quality of life, making breathing difficult and leading to distressing symptoms.
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Cystic Fibrosis: Pathogenesis01:23

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Cystic fibrosis (CF), an autosomal recessive disorder, significantly affects the function of exocrine glands. This genetically inherited disease is characterized by the production of thick and sticky mucus, which can severely affect various organs and systems in the body.
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COPD: Pathogenesis and Clinical Features01:20

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Chronic obstructive pulmonary disease (COPD) is a group of lung conditions that progressively worsen over time, including chronic bronchitis and emphysema. This cluster of diseases collectively leads to a gradual and irreversible decline in lung function over time.
The primary cause for the onset of COPD is cigarette smoking and exposure to air pollution. These hazardous factors initiate a chain reaction within the lungs, resulting in chronic inflammation, damage to the airways, and a...
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SN1 Reaction: Stereochemistry02:15

SN1 Reaction: Stereochemistry

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This lesson provides an in-depth discussion of the stereochemical outcomes in an SN1 reaction.
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SN1 Reaction: Kinetics02:05

SN1 Reaction: Kinetics

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In an SN2 reaction, the reaction rate depends on both the type of nucleophile and the substrate. A hindered tertiary alkyl halide is practically inert to the SN2 mechanism despite using a strong nucleophile.
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Related Experiment Video

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Amplification of Near Full-length HIV-1 Proviruses for Next-Generation Sequencing
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Amplification of Near Full-length HIV-1 Proviruses for Next-Generation Sequencing

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Coreceptors and HIV-1 pathogenesis.

Paul R Gorry1, Petronela Ancuta

  • 1Center for Virology, Burnet Institute, Melbourne, Victoria, Australia. gorry@burnet.edu.au

Current HIV/AIDS Reports
|December 29, 2010
PubMed
Summary

Human immunodeficiency virus type 1 (HIV-1) entry into CD4+ cells relies on coreceptors CCR5 and CXCR4. Understanding their role in viral pathogenesis is crucial for developing effective treatments.

Area of Science:

  • Immunology
  • Virology
  • Molecular Biology

Background:

  • The human immunodeficiency virus type 1 (HIV-1) life cycle critically depends on coreceptors CCR5 and CXCR4 for viral entry into host CD4+ cells.
  • Understanding the interaction between HIV-1 and these coreceptors is essential for comprehending viral tropism, disease progression, and therapeutic responses.

Purpose of the Study:

  • To review recent literature on the role of CCR5 and CXCR4 in HIV-1 pathogenesis.
  • To highlight advancements in understanding how coreceptor interactions influence viral infection and disease.

Main Methods:

  • Literature review of recent scientific publications.
  • Analysis of studies investigating HIV-1 coreceptor interactions and their impact on pathogenesis.

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Prediction of HIV-1 Coreceptor Usage Tropism by Sequence Analysis using a Genotypic Approach
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Prediction of HIV-1 Coreceptor Usage Tropism by Sequence Analysis using a Genotypic Approach

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In vitro Uncoating of HIV-1 Cores
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Related Experiment Videos

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Prediction of HIV-1 Coreceptor Usage Tropism by Sequence Analysis using a Genotypic Approach
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Prediction of HIV-1 Coreceptor Usage Tropism by Sequence Analysis using a Genotypic Approach

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In vitro Uncoating of HIV-1 Cores
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Main Results:

  • Alterations in coreceptor preference and interaction mechanisms significantly affect viral tropism and disease progression.
  • Coreceptor interactions influence the susceptibility of various immune cell subsets (CD4+ T-cells, monocytes, dendritic cells) to HIV-1 infection.
  • These interactions are vital for key aspects of HIV-1 pathogenesis, including latent reservoir establishment, viral trafficking, and transmission.

Conclusions:

  • CCR5 and CXCR4 are central players in HIV-1 pathogenesis.
  • Further research into coreceptor function is critical for developing targeted HIV-1 therapies and interventions.