scholarly journals Aquatic Invertebrates as Unlikely Vectors of Buruli Ulcer Disease

2008 ◽  
Vol 14 (8) ◽  
pp. 1247-1254 ◽  
Author(s):  
M. Eric Benbow ◽  
Heather Williamson ◽  
Ryan Kimbirauskas ◽  
Mollie D. McIntosh ◽  
Rebecca Kolar ◽  
...  
2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Pius Agbenorku ◽  
Anthony Edusei ◽  
Margaret Agbenorku ◽  
Thomas Diby ◽  
Esenam Nyador ◽  
...  

Objectives. To describe trends and category of disabilities caused by Buruli ulcer disease. Design. This retrospective study was set up to quantify information on the disability trends caused by Buruli ulcer (BU) using data on patients attending BU and chronic ulcer clinics from 2004 to 2009, at Global Evangelical Mission Hospital, Apromase. Methods. Data was retrieved from the WHO BU1 form, case registry book, surgical theatre register, and BU patients' records book of the hospital. Disability was measured as the incapability of patients to perform one or more daily activities due to his/her state of BU disease before treatment. Results. A total of 336 positive BU cases comprising 181 males (53.9%) were recorded of which 113 (33.6%) cases of disabilities were identified. A mean age of 52.5 (±1.32) years was recorded. For the trend of disabilities, the year 2009 recorded the highest (N = 34, 31.0%). The lesions were mostly located at the lower limbs (N = 65, 57.5%) region of the patients. Lesions with diameter >15 cm were the major (59.3%) category of lesions. Conclusion. Trend of disability reveals proportional increase over the years from 2004 to 2009. Contracture at the knee and ankle joints was the commonest disability recorded.


2021 ◽  
Vol 12 ◽  
Author(s):  
Bruno Tello Rubio ◽  
Florence Bugault ◽  
Blandine Baudon ◽  
Bertrand Raynal ◽  
Sébastien Brûlé ◽  
...  

Mycolactone is a diffusible lipid toxin produced by Mycobacterium ulcerans, the causative agent of Buruli ulcer disease. Altough bacterially derived mycolactone has been shown to traffic from cutaneous foci of infection to the bloodstream, the mechanisms underpinning its access to systemic circulation and import by host cells remain largely unknown. Using biophysical and cell-based approaches, we demonstrate that mycolactone specific association to serum albumin and lipoproteins is necessary for its solubilization and is a major mechanism to regulate its bioavailability. We also demonstrate that Scavenger Receptor (SR)-B1 contributes to the cellular uptake of mycolactone. Overall, we suggest a new mechanism of transport and cell entry, challenging the dogma that the toxin enters host cells via passive diffusion.


2006 ◽  
Vol 0 (0) ◽  
pp. 061109085615002-??? ◽  
Author(s):  
G. Bretzel ◽  
V. Siegmund ◽  
J. Nitschke ◽  
K. H. Herbinger ◽  
W. Thompson ◽  
...  

2004 ◽  
Vol 70 (10) ◽  
pp. 6296-6298 ◽  
Author(s):  
Laurent Marsollier ◽  
Tchibozo Sévérin ◽  
Jacques Aubry ◽  
Richard W. Merritt ◽  
Jean-Paul Saint André ◽  
...  

ABSTRACT Accumulative indirect evidence of the epidemiology of Mycobacterium ulcerans infections causing chronic skin ulcers (i.e., Buruli ulcer disease) suggests that the development of this pathogen and its transmission to humans are related predominantly to aquatic environments. We report that snails could transitorily harbor M. ulcerans without offering favorable conditions for its growth and replication. A novel intermediate link in the transmission chain of M. ulcerans becomes likely with predator aquatic insects in addition to phytophage insects. Water bugs, such as Naucoris cimicoides, a potential vector of M. ulcerans, were shown to be infected specifically by this bacterium after feeding on snails experimentally exposed to M. ulcerans.


2018 ◽  
Vol 110 (11) ◽  
pp. 237-248 ◽  
Author(s):  
Caroline Demangel ◽  
Stephen High

2014 ◽  
Vol 8 (4) ◽  
pp. e2786 ◽  
Author(s):  
Richard O. Phillips ◽  
Fred S. Sarfo ◽  
Jordi Landier ◽  
Reid Oldenburg ◽  
Michael Frimpong ◽  
...  

2008 ◽  
Vol 7 (1) ◽  
pp. 25 ◽  
Author(s):  
Tyler Wagner ◽  
M Eric Benbow ◽  
Travis O Brenden ◽  
Jiaguo Qi ◽  
R Christian Johnson

PLoS ONE ◽  
2012 ◽  
Vol 7 (5) ◽  
pp. e36954 ◽  
Author(s):  
Koen Peeters Grietens ◽  
Elizabeth Toomer ◽  
Alphonse Um Boock ◽  
Susanna Hausmann-Muela ◽  
Hans Peeters ◽  
...  

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