Open AccessRespiratory Distress and the Bacteria Causing Infection in the Neonates
Author(s) -
Neihaya H. Zaki
Publication year - 2012
Publication title -
almustansiriya journal of pharmaceutical sciences/al-mustansiriyah journal of pharmaceutical sciences
Language(s) - English
Resource type - Journals
eISSN - 2959-183X
pISSN - 1815-0993
DOI - 10.32947/ajps.v11i1.248
Subject(s) - microbiology and biotechnology , staphylococcus aureus , streptococcus agalactiae , streptococcus , bacteria , escherichia coli , respiratory distress , biology , medicine , anesthesia , biochemistry , genetics , gene
An analysis of 64 samples of (blood, vagina, anaus) from pregnant mothers and their neonates, only 58 samples showed these types of bacteria Streptococcus agalactiae(GBS), Staphylococcus aureus and Escherichia coli, distributed as: 16 blood isolates from mothers and 25 from neonates, while 13 vaginal isolates from mothers and 4 anal isolates from neonates. Bacterial components (phospholipids-PL) purified by High Performance Liquid Chromatography (HPLC), and identified as Cardiolipin (CL) with retention time (10.76 min.), Phosphatidylserine (PS) (8.1min.), and Phosphatidyl ethanolamine (PE) (5.9 min.) compared with standard PL. GBS isolates produced more extracellular phospholipids than other types in thisstudy.
The three types of bacteria differed in their levels of virulence when injected intratracheally in to a neonatal rabbit model to determine whether they induced pulmonary hypertension in it. After 8 days the rates of surviving neonatal rabbits were 2/15 (13.33%) to GBS, 5/15 to E.coli (33.33%), and 7/15 (46.66%) to S.aureus. The recognition that bacterial phospholipids may cause respiratory distress in newborns with these kinds of bacteria opens new avenues for therapeutic intervention.