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The bacterial foodborne pathogen Listeria monocytogenes is the causative agent of listeriosis, a debilitating disease linked with about 2,500 illnesses and more than 500 deaths in the U.S.A. each year. A characteristic feature of L. monocytogenes is its ability to grow at cold temperatures and even in the presence of high concentrations of salt - traditional food preservation techniques which arrest the growth of most other pathogens.

The bacterium protects itself from such stresses by twisting into a protective corkscrew type shape in an effort to reduce its exposure to the stress—in the same way a human might wrap up tight—hugging the core to reduce the effects of the cold. 

A culture that digs up dead female corpses to bury with single deceased men has unsurprisingly embraced probiotics. Starting in the 1990s,  the fast-growing yogurt, supplement, pharma and feed sectors are expected to reach $5 billion despite any benefit. 

 There are several hundred kinds of nutritional foods and ingredients containing probiotics currently sold in the Chinese market, such as fermented milk (yogurt), fermented cheese or cream, fermented soy milk, probiotics supplement and pharma products. 

It had been shown that the origin of pumpkins and cucumbers can be traced back to India and a new genetic analysis has updated that data. 

Compared to grains and pulses, vegetables are under-investigated taxonomically, and information on their genome is scarce. The cucumber family, Cucurbitaceae, includes many of our favorite foods: pumpkins, melon, cucumber, watermelon, bottle gourds, and bitter gourd. Molecular data have recently revealed that both cucumber (Cucumis sativus L.) and melon (Cucumis melo L.) are indigenous to India and likely to have originated from the foothills of the Himalayas.

Is your body shape predetermined? Some role for heritage is obvious and there efforts to fix people into an epigenetic destiny as well but it may be that diet and exercise can only do so much. A new paper says body composition, including soft fat tissue and hard bone tissue, which can lead to excess fat or osteoporosis, is genetic.

Prof. Gregory Livshits and Dr. Michael Korostishevsky of Tel Aviv University's Department of Anatomy and Anthropology say they have uncovered a clear genetic link between fat and bone mass. These factors, which contribute to bone metabolism, also affect Body Mass Index (BMI), which often serves as an indicator of overall health.

A protein known as mini-chromosome maintenance (MCM) has been found to change DNA topology and make DNA twist up into a so-called "supercoil".

Supercoiling can be thought of as similar to twisting one end of a rubber band while holding the other end still. After a few turns, it forms a neatly twisted rope. But if you keep on turning, the twisted band will twist back upon itself into an increasingly coiled-up knot. Similarly, a DNA molecule can be twisted and coiled to varying extents to form different "supercoiled" structures.

Video games can be difficult, even frustrating at the harder levels. That is part of their appeal. It turns out that frustrated people are attracted to video games also. The temptation to steal or cheat is greater if the risk of being caught is low and a new psychology paper suggests that denying people the opportunity to engage in these taboo behaviors may lead them to seek out violent video games as a way of managing their frustration.