Studies have shown that overweight and obese mothers are significantly more likely to quit breast-feeding their infants sooner than do healthy-weight mothers. An important reason why is the weaker biological response that heavier women have to their babies suckling, according to a study conducted by researchers at Cornell University and Bassett Hospital in Cooperstown, N.Y.
"We found that overweight and obese women have a lower prolactin response to suckling," says Kathleen Rasmussen, professor of nutritional sciences at Cornell and the lead researcher of the study, which is published in the journal Pediatrics (Vol. 113, No. 5, May 2004). Prolactin is a hormone produced by the pituitary gland that stimulates the mammary glands to produce milk soon after birth.
"This lower prolactin response to suckling would be expected to compromise the ability of overweight and obese women to produce milk and, over time, lead to a significantly shorter period of breast-feeding," she adds.
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15.12.2017 | Friedrich-Schiller-Universität Jena
Plasmonic biosensors enable development of new easy-to-use health tests
14.12.2017 | Aalto University
DNA molecules that follow specific instructions could offer more precise molecular control of synthetic chemical systems, a discovery that opens the door for engineers to create molecular machines with new and complex behaviors.
Researchers have created chemical amplifiers and a chemical oscillator using a systematic method that has the potential to embed sophisticated circuit...
MPQ scientists achieve long storage times for photonic quantum bits which break the lower bound for direct teleportation in a global quantum network.
Concerning the development of quantum memories for the realization of global quantum networks, scientists of the Quantum Dynamics Division led by Professor...
Researchers have developed a water cloaking concept based on electromagnetic forces that could eliminate an object's wake, greatly reducing its drag while...
Tiny pores at a cell's entryway act as miniature bouncers, letting in some electrically charged atoms--ions--but blocking others. Operating as exquisitely sensitive filters, these "ion channels" play a critical role in biological functions such as muscle contraction and the firing of brain cells.
To rapidly transport the right ions through the cell membrane, the tiny channels rely on a complex interplay between the ions and surrounding molecules,...
The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.
Over the past few years, the building blocks of storage media have gotten ever smaller. But further miniaturization of the current technology is hindered by...
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