UGR Scientists Develop A Technique To Detect A Streptococcus Passed From Mother To Foetus During Delivery

Main Category: Women's Health / Gynecology
Also Included In: Pregnancy / Obstetrics;  Pediatrics / Children's Health
Article Date: 29 Aug 2006 - 0:00 PDT

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Micro-organism Streptococcus agalactiae (group B streptococcus transmitted vertically from mother to foetus) and the Universidad de Granada have been closely linked from more than twenty years. In the nineties, a research group of the University Hospital Virgen de las Nieves gave rise to Granada Medium (a technique to detect the presence of the streptococcus in the mother). Recently, the same group, in collaboration with the departments of Microbiology and Organic Chemistry and the Nuclear Magnetic Resonance Service of the University of Granada [http://www.ugr.es], have isolated and identified the pigment that colours this micro-organism to detect its presence.

Perinatal infection by Streptococcus agalactiae affects approximately three of every 1,000 newborns alive, with a mortality rate of 50 per cent in the seventies which has reduced to 4-5 per cent due to the advances in neonatology. This micro-organism provokes in the newborn diseases such as septicaemia, pneumonia or meningitis, and the transmission from mother to foetus takes place during delivery or water breaking.

American scientists proved more than 20 years ago that the intravenous administration of antibiotics started at least fours hours before delivery is a good strategy to avoid early neonatal infection. For this reason, it was necessary to determine previously if the micro-organism was or not present in the mother's body. To this aim, the researchers from Granada devised a very simple technique, applied in health centres and known as Medio Granada. This system, unique in the world, is currently manufactured in Spain (by the Biomedics company, in Madrid), Germany (Becton Dickinson) and the USA (Hardy, Diagnostics).

Streptococcus detection

The other great achievement of the scientists of the UGR [http://www.ugr.es] related to the Streptococcus agalactiae has provisionally been called Granadaeno, a new red pigment which, applied in the Medio Granada, colours the streptococcus if it is present in the mother's organism.

The molecular structure of the Granadaeno has been solved by a research group made up by members of the UGR departments of Microbiology (professor Alfonso Ruiz-Bravo López) and Organic Chemistry (professor Juan Manuel Cuerva Carvajal), and the Nuclear Magnetic Resonance Services (doctor Alí Haidour Benami) and Microbiology (directed by doctor Manuel de la Rosa Fraile) of the University Hospital Virgen de las Nieves.

In order to detect the carriers of Streptococcus agalactiae, the scientists advise to carry out a vaginal and rectal culture to all the pregnant women in the 35-37 weeks of pregnancy, preferably in the week 36, if there is a there is suspicion of chorioamnionitis.

About the UNIVERSITY OF GRANADA

The University of Granada (UGR) was founded in 1531, under the initiative of Emperor Charles V. In this way, Granada asserted its vocation as a university city, open to different cultures, peoples and beliefs, continuing the tradition of the Arab University of Yusuf I (Madrassa, 14th century). With 475 years of tradition, the University of Granada has been an exceptional witness to history, as its influence in the city's social and cultural environment grew until it was to become, over a period of almost five centuries, an intellectual and cultural nucleus in Southern Spain in its own right. The University of Granada has also made a strong commitment to its future by fostering the development of quality research, whose guiding criteria are to stress traditional lines of research, to support investigation which - although less developed - may prove useful to a changing society and to forge bonds with firms and institutions. As a result of its growth in scientific production, the UGR is among the top Spanish universities. More than 400 research groups are working in all different areas of knowledge, in collaboration with both national and international research groups. The University of Granada offers to 81,600 students - 10 per cent of which are foreign students - 75 degree courses distributed in 28 centres. The UGR is the leading European destination for Erasmus/Socrates students, the most important Spanish university in graduation prizes, the third in the number of doctoral courses with the Distinction of Quality granted by the Ministry of Education and Science and the sixth in scientific production.

UNIVERSITY OF GRANADA

http://www.ugr.es

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