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Related Concept Videos

Pneumonia III: Complications and Assessment01:30

Pneumonia III: Complications and Assessment

Pneumonia poses the potential for numerous complications that warrant consideration. These complications include the following:
Pneumonia II: Pathophysiology01:29

Pneumonia II: Pathophysiology

The pathophysiology of pneumonia involves the following steps:
Pneumonia I: Introduction01:29

Pneumonia I: Introduction

Pneumonia is an infection of the lower respiratory tract that leads to inflammation of the lung parenchyma, often resulting in the accumulation of inflammatory exudate in the alveoli and airways. Unlike the watery, low-protein fluid exudate in pulmonary edema, the exudate in this case is a thick fluid rich in immune cells, proteins, and debris produced during infection and inflammation.This impairs gas exchange and can lead to consolidation of lung tissue. The infection may be caused by a...
Pneumonia I: Introduction01:30

Pneumonia I: Introduction

Pneumonia is an acute respiratory infection that targets the lungs, specifically the alveoli. These tiny air sacs, essential for oxygen exchange, become engorged with pus and fluid, severely hindering breathing, decreasing oxygen absorption, and causing significant pain and discomfort during respiration.
Risk Factors
Various factors influence the likelihood of developing pneumonia. Age plays a crucial role, with infants, children under two, and individuals over 65 at increased risk due to their...
Atypical Pneumonia01:14

Atypical Pneumonia

Atypical pneumonia, often caused by Mycoplasma pneumoniae, is a form of pulmonary infection that differs from the classical presentation of bacterial pneumonia in both its cause and clinical symptoms. Mycoplasma pneumoniae is a pleomorphic bacterium notable for its lack of a rigid cell wall. This structural characteristic imparts resistance to beta-lactam antibiotics and significantly influences the bacterium’s behavior within the human host.Other pathogens responsible for the disease include...

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Related Experiment Video

Updated: Jun 19, 2026

A Non-invasive and Technically Non-intensive Method for Induction and Phenotyping of Experimental Bacterial Pneumonia in Mice
07:43

A Non-invasive and Technically Non-intensive Method for Induction and Phenotyping of Experimental Bacterial Pneumonia in Mice

Published on: September 28, 2016

IMMUNOLOGICAL STUDIES IN PNEUMONIA.

R Weil1, J C Torrey

  • 1First Medical Division of the Mt. Sinai Hospital, and the Department of Experimental Medicine and Experimental Pathology of the Cornell Medical School, New York.

The Journal of Experimental Medicine
|October 30, 2009
PubMed
Summary
This summary is machine-generated.

Researchers found sensitizing antibodies in pneumonia patients

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Last Updated: Jun 19, 2026

A Non-invasive and Technically Non-intensive Method for Induction and Phenotyping of Experimental Bacterial Pneumonia in Mice
07:43

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Published on: September 28, 2016

A Robust Pneumonia Model in Immunocompetent Rodents to Evaluate Antibacterial Efficacy against S. pneumoniae, H. influenzae, K. pneumoniae, P. aeruginosa or A. baumannii
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Characterization of Inflammatory Responses During Intranasal Colonization with Streptococcus pneumoniae
09:12

Characterization of Inflammatory Responses During Intranasal Colonization with Streptococcus pneumoniae

Published on: January 17, 2014

Area of Science:

  • Immunology
  • Infectious Diseases
  • Pulmonology

Background:

  • Pneumonia is a significant respiratory infection.
  • Understanding the immune response in pneumonia is crucial for diagnosis and treatment.

Purpose of the Study:

  • To investigate the presence of sensitizing antibodies in pneumonia patients.
  • To determine if these antibodies correlate with disease activity.

Main Methods:

  • Passive sensitization of guinea pigs using serum from human pneumonia cases.
  • Utilizing pneumococcus autolysate as the antigen.
  • Employing Dale's method for antibody detection.

Main Results:

  • Sensitizing antibodies were consistently detected in the blood of pneumonia patients.
  • Antibody levels decreased significantly after the crisis stage of the illness.
  • Individuals with other diseases and healthy controls did not exhibit these antibodies.

Conclusions:

  • The study demonstrates the presence of specific sensitizing antibodies during active pneumonia.
  • These antibodies appear to be transient, diminishing post-crisis.
  • The findings suggest a potential diagnostic marker for pneumonia.