Navigation Links
Good dentistry may have saved the dinosaurs

Infectious diseases can be transmitted by sneezing, touching, or for Tasmanian devils biting each other on the face, a habit that may have driven the dinosaurs to extinction through the transmission of a protozoan parasite.

Jacqueline Upcroft, a member of f1000 Biology, highlights the 'paleobiological detective work' of David Varricchio and colleagues published in PLoS One. This led them to deduce that a protozoan parasite was to blame for the diseased jaw bones seen in many tyrannosaurid fossils.

The parasite's modern-day equivalent, which infects birds, eats away at the jawbone and can cause ulcers so severe that the host starves to death. Living in the jaw, the parasite may have been passed from one dinosaur to another during head biting.

Upcroft said, "this organism commonly infects doves, pigeons, turkeys and raptors, causing necrotic ulceration in the upper digestive tract," and in extreme cases it can fully penetrate the bone.

The similarity of the fossilized jawbones and modern-day samples suggests that the parasite was deadly enough to kill infected dinosaurs. Furthermore, as Upcroft notes, "this may not have been an isolated situation but may have occurred en masse and led to the extinction of the species."


Contact: Steve Pogonowski
Faculty of 1000: Biology and Medicine

Page: 1

Related biology news :

1. USC School of Dentistry researchers uncover link between osteoporosis drugs and jaw infection
2. NYU College of Dentistry awarded $1.9 million NIH grant for HIV research
3. Saved by junk DNA
4. Grand Canyon may be as old as dinosaurs, says new study
5. Genetic sequencing of protein from T. rex bone confirms dinosaurs link to birds
6. Did the solar system bounce finish the dinosaurs?
7. Mass extinctions and the evolution of dinosaurs
8. Geologist who linked cosmic strike to dinosaurs extinction takes top prize
9. Study of polar dinosaur migration questions whether dinosaurs were truly the first great migrators
10. CT scans reveal that dinosaurs were airheads
11. Male dinosaurs may have been prehistoric babysitters, study shows
Post Your Comments:
(Date:6/22/2016)... 22, 2016  The American College of Medical Genetics and ... Magazine as one of the fastest-growing trade shows during ... the Bellagio in Las Vegas . ... of growth in each of the following categories: net square ... number of attendees. The 2015 ACMG Annual Meeting was ranked ...
(Date:6/21/2016)... , June 21, 2016 NuData ... the new role of principal product architect and ... the director of customer development. Both will report ... technical officer. The moves reflect NuData,s strategic growth ... response to high customer demand and customer focus ...
(Date:6/15/2016)... York , June 15, 2016 ... new market report titled "Gesture Recognition Market by Application ... Forecast, 2016 - 2024". According to the report, the  ... 11.60 billion in 2015 and is estimated to ... USD 48.56 billion by 2024.  Increasing ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... Mass. , June 23, 2016   ... development of novel compounds designed to target cancer ... napabucasin, has been granted Orphan Drug Designation from ... the treatment of gastric cancer, including gastroesophageal junction ... stemness inhibitor designed to inhibit cancer stemness pathways ...
(Date:6/23/2016)... (PRWEB) , ... June 23, 2016 , ... ... Plate® YM (Yeast and Mold) microbial test has received AOAC Research Institute approval ... of microbial tests introduced last year,” stated Bob Salter, Vice President of Regulatory ...
(Date:6/23/2016)... ... June 23, 2016 , ... Supplyframe, the Industry Network ... Supplyframe Design Lab . Located in Pasadena, Calif., the Design Lab’s mission is ... projects are designed, built and brought to market. , The Design Lab is ...
(Date:6/23/2016)... June 23, 2016  Blueprint Bio, a company dedicated ... the medical community, has closed its Series A funding ... . "We have received a commitment from ... we need to meet our current goals," stated ... the runway to complete validation on the current projects ...
Breaking Biology Technology: