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Latest Olfactory system Stories

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2010-09-01 10:42:10

By David F. Salisbury Origin of DEET's repellent effect confirmed It now appears that the malaria mosquito needs more than one family of odor sensors to sniff out its human prey. That is the implication of new research into the mosquito's sense of smell published in the Aug. 31 issue of the online, open-access journal Public Library of Science Biology. The experiments described in the paper provide striking new evidence that Anopheles gambiae "“ the species of mosquito that spreads...

2010-08-26 12:30:22

Two new studies reveal that the commonly used insect repellents DEET and citronellal each work through a dual stimulation of insect sensory systems. The research findings, published by Cell Press on August 26 in the journals Neuron and Current Biology, enhance our understanding of how insects respond to repellents and may lead to the discovery of improved compounds for controlling insect-borne disease. Insect pests pose a major threat to humans across the world. In addition to spreading...

2010-07-21 23:42:10

New research, published in the journal Development, by Dr. Anthony-Samuel LaMantia, professor of Pharmacology & Physiology and director of the newly formed GW Institute for Neuroscience, and his colleagues have identified the stem cells that generate three critical classes of nerve cells "“ olfactory receptors (ORNs), vomeronasal (VRNs) and gonadotropin releasing hormone (GnRH) neurons "“ that are responsible for enabling animals and humans, to eat, interact socially and...

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2010-07-20 06:56:43

Popular zinc-based nasal gels and sprays sold over-the-counter as common cold remedies are ineffective, and can even cause the loss of smell, according to a study published Monday. Clinical trials of the zinc-based therapies showed they did not prevent or reduce the duration of common colds, and were linked to a loss of smell, the study's authors found. "In addition to concerns regarding the efficacy of intranasal zinc therapy, increasing evidence indicates that this medication may be linked...

2010-05-18 15:11:11

Impaired ability to detect odors and irritants 2 years after buildings' collapse New research from the Monell Center and collaborating institutions reports that workers exposed to the complex mixture of toxic airborne chemicals following the 9/11 disaster had a decreased ability to detect odors and irritants two years after the exposure. "The nose performs many sensory functions that are critical for human health and safety," said lead author Pamela Dalton, PhD, MPH, an environmental...

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2010-05-14 10:25:34

The findings provide clues to how our brains work Scientists from The Scripps Research Institute have found a specific chemical compound secreted by many predators that makes mice behave fearfully. The research helps scientists better understand animal behavior, and may eventually lead to new insights into how sensory information is processed in human brains. The research was published in the prestigious journal Cell on May 14, 2010. "We're interested in how the brain can be hardwired to...

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2010-04-28 12:00:33

Heidelberg neuroscientists verify for the first time the function of inhibiting communication / Published in "Neuron" Whether different odors can be quickly distinguished depends on certain synapses in the brain that inhibit nerve stimulation. The researchers in Professor Dr. Thomas Kuner's team at the Institute of Anatomy and Cell Biology at Heidelberg University Medical School and Dr. Andreas Schäfer at the Max Planck Institute for Medical Research have shown that mice in which a...

2010-04-01 09:43:14

Traditional Chinese acupuncture (TCA), where very thin needles are used to stimulate specific points in the body to elicit beneficial therapeutic responses, may be an effective treatment option for patients who suffer from persistent post- viral olfactory dysfunction (PVOD), according to new research in the April 2010 issue of Otolaryngology "“ Head and Neck Surgery. Olfactory dysfunction can arise from a variety of causes and can profoundly influence a patient's quality of life. The...

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2010-02-04 08:34:03

Yale study may lead to better traps, repellents Yale University researchers have found more than two dozen scent receptors in malaria-transmitting mosquitoes that detect compounds in human sweat, a finding that may help scientists to develop new ways to combat a disease that kills 1 million people annually. These olfactory receptors in the mosquito Anopheles gambiae offer scientists potential new targets for repelling, confusing or attracting into traps the mosquitoes that spread a disease...

2009-12-28 13:26:20

The vomeronasal organ (VNO) is an odor detection system that mediates many pheromone-sensitive behaviors. Vomeronasal sensory neurons (VSNs), located in the VNO, are the initial site of interaction with odors and pheromones. How an individual VSN transduces chemical signals into electrical signals, however, has been a mystery. In the January 2010 issue of the Journal of General Physiology (www.jgp.org), researchers from the University of Vermont show that a Ca 2+ -activated chloride current...


Word of the Day
glogg
  • Scandinavian punch made of claret and aquavit with spices and raisins and orange peel and sugar.
This word comes from the Swedish 'glogg,' which is an alteration of 'glodgat,' mulled (wine).
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