Bacteriological analysis of Neisseria lactamica isolated from the respiratory tract in Japanese children

Background: Lower respiratory tract infections are frequent and often serious diseases in children. Wide number of microorganisms may cause lower respiratory tract infections, and sometimes it could be very difficult to determine the exact causative.Aim: The aim of this study was to assess the reliability of specimens obtained by bronchial lavage in determining the etiology of childhood pneumonia.Methods: This is prospective study conducted during four years period, in a group of 60 children aged from 6 months to 18 years. All patients included in this study underwent bronchoscopy when they fulfilled criteria of routine clinical protocol, in order to set correct diagnosis of lower respiratory tract disease. Results of bacteriological analysis of PLA samples were compared against the results of bacteriological analysis of BL samples of the same patient.Results: In majority of subjects - 41 (68.32%), the bacteria isolated from the bronchial lavage samples was not identified in pharyngolaryngeal aspirate and was considered as the cause of infection. Haemophilus influenzae was the most frequently isolated pathogen in bronchial lavage samples.Conclusion: Findings based on analysis of bronchial lavage samples may be used as reliable criterion for etiological diagnosis in cases of pneumonia when initial empirical treatment failed.

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Prevalence of Chlamydia pneumoniae in Acute Respiratory Tract Infection and Detection of Anti-Chlamydia pneumoniae-speciflc lgE in Japanese Children with Reactive Airway Disease.

The Kurume Medical Journal ◽

10.2739/kurumemedj.48.165 ◽

2001 ◽

Vol 48 (2) ◽

pp. 165-170 ◽

Cited By ~ 9

Author(s):

SHIGERU IKEZAWA

Keyword(s):

Tract Infection ◽

Respiratory Tract ◽

Respiratory Tract Infection ◽

Chlamydia Pneumoniae ◽

Airway Disease ◽

Acute Respiratory Tract Infection ◽

Japanese Children ◽

Reactive Airway Disease ◽

Reactive Airway

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Detection of Human Bocavirus in Japanese Children with Lower Respiratory Tract Infections

Journal of Clinical Microbiology ◽

10.1128/jcm.44.3.1132-1134.2006 ◽

2006 ◽

Vol 44 (3) ◽

pp. 1132-1134 ◽

Cited By ~ 159

Author(s):

X. Ma ◽

R. Endo ◽

N. Ishiguro ◽

T. Ebihara ◽

H. Ishiko ◽

...

Keyword(s):

Respiratory Tract ◽

Lower Respiratory Tract ◽

Respiratory Tract Infections ◽

Human Bocavirus ◽

Lower Respiratory Tract Infections ◽

Japanese Children ◽

Tract Infections

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Isolation Rate of Neisseria meningitidis in Japanese Children with Respiratory Tract Infections

Japanese Journal of Infectious Diseases ◽

10.7883/yoken.jjid.2017.244 ◽

2018 ◽

Vol 71 (3) ◽

pp. 244-246 ◽

Cited By ~ 1

Author(s):

Haruka Takei ◽

Naruhiko Ishiwada ◽

Noriko Takeuchi ◽

Misako Ohkusu ◽

Tadashi Hoshino ◽

...

Keyword(s):

Respiratory Tract ◽

Neisseria Meningitidis ◽

Respiratory Tract Infections ◽

Isolation Rate ◽

Japanese Children ◽

Tract Infections

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New Ultrastructural Observations on Injury and Regeneration of Cilia in Mammalian Conducting Airway Epithelium

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100099544 ◽

1981 ◽

Vol 39 ◽

pp. 624-625

Author(s):

J.L. Carson ◽

A.M. Collier

Keyword(s):

Respiratory Tract ◽

Airway Epithelium ◽

Defense Mechanisms ◽

Normal Growth ◽

Fetal Lung ◽

Secretory Cells ◽

Airway Epithelial ◽

Ciliated Cells ◽

Conducting Airway ◽

Conducting Airways

The ciliated cells lining the conducting airways of mammals are integral to the defense mechanisms of the respiratory tract, functioning in coordination with secretory cells in the removal of inhaled and cellular debris. The effects of various infectious and toxic agents on the structure and function of airway epithelial cell cilia have been studied in our laboratory, both of which have been shown to affect ciliary ultrastructure.These observations have led to questions about ciliary regeneration as well as the possible induction of ciliogenesis in response to cellular injury. Classical models of ciliogenesis in the conducting airway epithelium of the mammalian respiratory tract have been based primarily on observations of the developing fetal lung. These observations provide a plausible explanation for the embryological generation of ciliary beds lining the conducting airways but do little to account for subsequent differentiation of ciliated cells and ciliogenesis during normal growth and development.

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