Pan-Drug Resistant ‘Superbug’ Found in US

This false-color image shows Escherichia coli . Image credit: Geralt.
‘Superbug’ bacteria affect two million people and kill at least 23,000 Americans every year.
A regular bacterium, ‘bug,’ becomes a ‘superbug’ by resisting a round or more of antibiotics, which causes the ‘bug’ to proliferate.
The more antibiotics that are taken by a patient, the more chances the bacteria have to become resistant to the seven major classes of modern antibiotics.
Colistin is a powerful antibiotic that has traditionally been used as a last resort treatment against treacherous ‘superbugs.’ However, last November scientists in China found bacteria with colistin resistance on the mcr — 1 gene in a plasmid, a circular DNA strand that can be transferred to and used by other bacteria to spread antibiotic resistance.
Rec… Read more

Pan-Drug Resistant ‘Superbug’ Found in US

This false-color image shows Escherichia coli . Image credit: Geralt.
‘Superbug’ bacteria affect two million people and kill at least 23,000 Americans every year.
A regular bacterium, ‘bug,’ becomes a ‘superbug’ by resisting a round or more of antibiotics, which causes the ‘bug’ to proliferate.
The more antibiotics that are taken by a patient, the more chances the bacteria have to become resistant to the seven major classes of modern antibiotics.
Colistin is a powerful antibiotic that has traditionally been used as a last resort treatment against treacherous ‘superbugs.’ However, last November scientists in China found bacteria with colistin resistance on the mcr — 1 gene in a plasmid, a circular DNA strand that can be transferred to and used by other bacteria to… Read more

Newly-Discovered Species of Tarantula Named after Gabriel Garcia Marquez

A relatively large species of tarantula discovered in an isolated mountain range in Colombia has been named after the famed Colombian novelist and 1982 Nobel Prize in Literature winner Gabriel García Márquez.

Kankuamo marquezi , female. Image credit: Dirk Weinmann.
The new spider, scientifically named Kankuamo marquezi , was discovered in the Colombian mountain range Sierra Nevada de Santa Marta.
With its extraordinary defensive hairs, Kankuamo marquezi proved itself as not only a new species, but also a new genus.
A team of scientists led by Dr. Carlos Perafán from the University of the Republic, Uruguay, described the new genus and species in the journal ZooKeys .
“ Kankuamo is a noun in apposition and refers to the indigenous people of the Chibcha family from th… Read more

Inflammation from Mosquito Bites May Enhance Virus Replication, Dissemination

According to a mouse study published this week in the journal Immunity , the swelling and irritation that make mosquito bites so unpleasant may provide a mechanism by which any viruses the mosquito is carrying are able to replicate and spread.

The inoculation of viruses into mosquito bite sites is an important and common stage of arbovirus infections. Dr. McKimmie and his colleagues show that inflammation at bite sites aids viral replication and dissemination in vivo, resulting in more severe infection. These findings define additional targets for post-exposure prophylactic intervention. Image credit: Marieke Pingen et al.
“Before we did this study, little was known about the events and processes that occur at mosquito bite sites,” said senior author Dr. Clive McKimmie, from the University of L… Read more

Inflammation from Mosquito Bites May Enhance Virus Replication, Dissemination

According to a mouse study published this week in the journal Immunity , the swelling and irritation that make mosquito bites so unpleasant may provide a mechanism by which any viruses the mosquito is carrying are able to replicate and spread.

The inoculation of viruses into mosquito bite sites is an important and common stage of arbovirus infections. Dr. McKimmie and his colleagues show that inflammation at bite sites aids viral replication and dissemination in vivo, resulting in more severe infection. These findings define additional targets for post-exposure prophylactic intervention. Image credit: Marieke Pingen et al.
“Before we did this study, little was known about the events and processes that occur at mosquito bite sites,” said senior author Dr. Cliv… Read more

Chameleon’s Hunting Secret Revealed

The viscosity of the mucus secreted at the tip of a chameleon’s tongue is about 400 times higher than that of human saliva, according to a team of scientists led by Dr. Pascal Damman from the Université de Mons, Belgium.

Panther chameleon. Image credit: Pixel-mixer.
Chameleons are small to mid-size tree-dwelling reptiles that are famous for their ability to change colors. They are found in the Old World, but most live in Madagascar and Africa.
These reptiles are opportunistic predators feeding on a large variety of invertebrate and vertebrate animals, ranging from ants to lizards.
They remain motionless, hidden from their own predators, and wait for active prey to come within the reach of a strike.
They are able to capture large prey (up to 30% of their own weight) by pr… Read more

Warthogs, Wild Boars May Have Internal Magnetic Compass

Wild boars ( Sus scrofa ) and warthogs ( Phacochoerus africanus ) have an internal magnetic compass that helps them orient themselves as they forage for food and inhabit new areas, suggests a new study led by Dr. Pascal Malkemper from the Czech University of Life Sciences and the University of Duisburg-Essen.

Warthogs ( Phacochoerus africanus ) in South Africa. Image credit: Vince Smith / CC BY 2.0.
For the study, Dr. Malkemper and his colleagues observed wild boars at 31 different localities in the Czech Republic and warthogs at 33 different localities in six African countries.
The animals had a highly significant axial preference to align themselves approximately along the magnetic north-south axis, with a slight shift towards east.
The time of the day, season, an… Read more

Very Hot Coffee, Tea, Mate May Increase Risk of Cancer of Esophagus

Beverages surpassing 149 degrees Fahrenheit (65 degrees Celsius) may increase the risk of tumors in the esophagus, which resides in the chest area below the throat, according to a World Health Organization team of scientists.

Drinking piping hot coffee, tea and yerba mate probably causes cancer of the esophagus, scientists say. Image credit: Wild0ne.
“Enjoy your coffee or mate, but make sure it’s not very hot,” said team member Dr. Mariana Stern, from the University of Southern California.
“There is physical evidence that very hot beverages can contribute to cell injury in the esophagus and thus contribute to cancer formation.”
Dr. Stern and co-authors scoured more than 1,000 studies on over 20 different types of cancer.
They concluded drinking any beverage hotter than 149 degrees Fahrenheit is p… Read more

Very Hot Coffee, Tea, Mate May Increase Risk of Cancer of Esophagus

Beverages surpassing 149 degrees Fahrenheit (65 degrees Celsius) may increase the risk of tumors in the esophagus, which resides in the chest area below the throat, according to a World Health Organization team of scientists.

Drinking piping hot coffee, tea and yerba mate probably causes cancer of the esophagus, scientists say. Image credit: Wild0ne.
“Enjoy your coffee or mate, but make sure it’s not very hot,” said team member Dr. Mariana Stern, from the University of Southern California.
“There is physical evidence that very hot beverages can contribute to cell injury in the esophagus and thus contribute to cancer formation.”
Dr. Stern and co-authors scoured more than 1,000 studies on over 20 different types of cancer.
They concluded drinking any beverage hot… Read more

Anolis landestoyi: New Species of Chameleon-Like Lizard Found in Dominican Republic

Scientists from Canada and the United States have discovered a new species of Greater Antillean anole lizard in the Dominican Republic, on the Caribbean island of Hispaniola, strengthening a theory that communities of lizards can evolve almost identically on separate islands.

Anolis landestoyi . Image credit: Miguel Landestoyi.
Greater Antillean anoles (genus Anolis ) are a textbook example of a phenomenon known as replicated adaptive radiation, where related species evolving on different islands diversify into similar sets of species that occupy the same ecological niches.
Examples of this could be long-tailed grass dwellers, bright green canopy lizards, and stocky brown species that perch low on tree trunks, each living in similar environments on more… Read more

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