Saliva in Biological News

Are you okay to kiss?

... "All a user has to do is dab a little bit of saliva onto a small window of the OkayToKiss kit," ... "Now, we are able to grow these bacteria from saliva in an artificial biofilm, showing that there are ... the bacterium take the glycoproteins in the saliva and chop off sugar residues to produce volatile ...

American Chemical Society's weekly PressPac -- Jan. 14, 2009

... #2 FOR IMMEDIATE RELEASE Advance toward first saliva test for Type 2 diabetes Journal of Proteome ... reporting an advance toward developing the first saliva test to diagnose and monitor effectiveness of ... comprehensive description of the proteins in the saliva of patients with Type 2 diabetes, also called ...

American Chemical Society's Weekly PressPac -- Jan. 7, 2009

... FOR IMMEDIATE RELEASE Toward a long-sought saliva test for autism Journal of Proteome Research ... reporting discovery of abnormal proteins in the saliva of autism patients that could eventually provide ... and Fiorella Gurrieri, compared proteins in the saliva of 27 children with ASD to those in a control ...

Saliva proteins could help detection of oral cancer

... of Dentistry. Previous studies have shown that saliva can be a useful diagnostic tool, but this is the first study to globally evaluate saliva protein levels from oral cancer patients. Since it is very simple to collect and process saliva fluids, the discovery of these biomarkers may ...

Licking your wounds: Scientists isolate compound in human saliva that speeds wound healing

... ) identifies a compound in human saliva that greatly speeds wound healing. This research ... found that histatin, a small protein in saliva previously only believed to kill bacteria was ... After 16 hours the scientists noticed that the saliva treated "wound" was almost completely closed. In ...

Saliva can help diagnose heart attack, study shows

... may now be possible using only a few drops of saliva and a new nano-bio-chip, a multi-institutional ... could some day be used to analyze a patient's saliva on board an ambulance, at the dentists office or ... of Kentucky College of Dentistry tested saliva from 56 people who had a heart attack and 59 ...

Fraud attempt in a paternity test modifies action protocol in DNA tests

... Samples are usually collected from mouth and saliva cells to carry out the DNA analysis. The team of ... of Dr Lorente encountered a strange case: the saliva analysis (epithelial cells from the interior of ... the sample taking, he put into his mouth some saliva he kept in a little container. It was n attempt ...

'Swish-and-spit' test accurate for cancer

... solution. The researchers collected the rinsed saliva and filtered out cells thought to contain one or ... best, he tested panels of three to five genes on saliva rinses. One panel correctly identified 66 out ... the blood test was more accurate than the saliva test at detecting cancer in patients with the ...

Scientists develop a fast system to detect metal concentrations in iron and steel industry workers

... seek to replace these samples with others such as saliva and hair, as they are faster and less invasive. ... marker analyses (blood and urine) with saliva and hair samples. Then, depending on the matches, ... will determine whether it is possible to use saliva and hair as metal markers in continuous exposure ...

Earlier bites by uninfected mosquitoes boost West Nile deaths in lab mice

... and wed already demonstrated that mosquito saliva has an effect on the vertebrate immune system ... Higgs said. What this new work shows is that the saliva delivered by even earlier feedings can also alter ... 27 percent of the mice previously unexposed to saliva from mosquitoes that were free of West Nile ...

Mites on hissing coackroach may benefit humans with allergies

... infections if they enter the lungs or an open wound. The mites eat saliva and organic debris that collects between the cockroaches' legs, ... Benoit said they tend to slobber on themselves when they eat, leaving saliva and organic debris in crevices along the lower middle portions of their ...

American Chemical Society Weekly PressPac -- April 1, 2009

... reporting the first identification of a "magic potion" of proteins in the saliva of the black fly that help this blood-sucking pest spread parasites that ... In the new study, Jos M.C. Ribeiro and colleagues explain that the saliva of adult female black flies contains substances that mute the human body's ...

In child care, relationships with caregivers key to children's stress levels

... with their teachers in interviews. Researchers also collected saliva samples from the children in classrooms to determine changes in their cortisol levels from morning to afternoon. They also collected saliva outside of class before and after a series of mildly difficult tasks ...

A card-swipe for medical tests

... a credit card-swipe machine to scan a card loaded with microscopic blood, saliva or urine samples. The prototype works on the same principle giant ... envision this as a wellness check in which a patient sample blood, urine, saliva is spotted on a sample stick or card, scanned, and then the readout ...

Athletes' 'sweat and tears' linked to asthma

... (ACCP), shows that athletes with EIA produce less sweat, tears, and saliva than those who do not have breathing problems. Warren Lockette, MD, ... to the application of pilocarpine, an agent used to induce sweating and saliva production. Individuals who were most sensitive to methacholine, i.e., who ...

Nitrates in vegetables protect against gastric ulcers

... where they are concentrated. When we have eaten nitrate-rich food our saliva thus contains large amounts of nitrates, which the bacteria of the oral ... where they are concentrated. When we have eaten nitrate-rich food our saliva thus contains large amounts of nitrates, which the bacteria of the oral ...

A breath mint made from... coffee?

... coffee, Landwer Turkish coffee, and Taster's Choice. Prof. Rosenberg expected to demonstrate the malodor-causing effect of coffee in an in vitro saliva assay developed by Dr. Sarit Levitan in his laboratory. To his surprise, the extracts had the opposite effect. "The lesson we learned here is one ...

Old stain in a new combination

... susceptible. Malaria pathogens need humans and mosquitoes When the Anopheles mosquito bites, the malaria parasites (plasmodia) in the saliva of the mosquito enter the human body, reproduce in liver cells and then attack the red blood cells. This causes severe symptoms such as high fever or ...

Sugar, spice and puppy dog tails: Developing sex-typed personality traits and interests

... American families. They collected information through home interviews conducted over seven years, activity diaries provided by the children, and saliva samples that measured the children's testosterone levels. Not surprisingly, girls and boys differed in their sex-typed personality qualities and ...

Effectiveness of progesterone in reducing preterm births may be altered by genetic predisposition

... of recurrent spontaneous preterm birth. All patients had at least one prior spontaneous preterm birth. The study extracted DNA from the saliva of 389 patients, and then genotyped 20 SNPs in the region of the progesterone receptor gene. Two hundred and fifty-eight (66 percent) of the study ...

Stomach ulcer bug causes bad breath

... problem. Gastrointestinal diseases are also generally believed to cause halitosis." Patients who were carrying H. pylori had more blood in their saliva and were also carrying Prevotella intermedia , which is one of the major periodontal bacteria. "Although the presence of H. pylori in the mouth ...

Children distressed by family fighting have higher stress hormones

... and received reports from the mothers about how their children responded when parents fought at home. Cortisol levels were measured by taking saliva samples before and after the conflicts in the lab. Children who were very distressed by the conflicts in the lab had higher levels of cortisol in ...

National Science Foundation grants Clemson professors award to develop nanoprobes

... interesting to see how these conduits that nature invented work." Kornev cites one potential application as the ability to draw tiny samples of saliva from the glands of chemotherapy patients who often experience painful dry mouth as a side effect of their treatment. Other possible applications ...

American Chemical Society's Weekly PressPac -- Sept. 3, 2008

... may get a boost from proposed new drug testing guidelines from the U.S. Department of Health & Human Services. They would permit use of hair and saliva samples in drug screening of candidates for federal jobs. That screening could indentify illicit drugs more reliably than urine samples alone, the ...

UCR graduate student discovers, names bacterium linked to psyllid yellows

... potato plant with this bacterium is yellowing of the foliage," said Hansen, whose co-advisor is Richard Stouthamer , a professor of entomology. "The saliva of the tomato psyllid has been known to cause yellowing of tomato and potato leaves. The cause of this symptom has been a mystery for over a ...

AMBER Alert Safety Centers to Provide Child Safety Precautions at the New Jersey State Fair at the Meadowlands

... will receive AMBER Ready coverage for their children for two years at no charge; a free picture messaging phone (several models to choose from); free saliva DNA, Fingerprinting and Dental Chart Kit; Free Safety Disk with photograph and child identification information; Free Internet Child Safety Tools; ...

Taking a cue from breath fresheners, researcher develops new method for taste testing

... hoping to commercialize the taste strips. "We can alter the size or thickness of these strips, place them on a desired area of the tongue and allow saliva to dissolve them without causing the tastant to spread over the surface of the tongue." Since different parts of the tongue may respond to ...

American Chemical Society's Weekly PressPac -- April 30, 2008

... Agricultural and Food Chemistry, scientists report the design of an artificial mouth that mimics the first vital steps of human digestion chewing, saliva release and the initial breakdown of food. In the study, Galle Arvisenet and colleagues point out that a number of factors are involved in the ...

Threatened bird species finds home at Western

... At night, the birds cling by their toenails to the vertical brick interior. Chimney swifts also build nests inside chimneys, using their glue-like saliva to attach twigs together and to the bricks. With the growth of gas furnaces and chimney conversions to include metal linings, the stock of ...

American Chemical Society's Weekly PressPac -- Nov. 14, 2007

... effects like tooth staining. In the new study, Minmin Tian and Michael Greenberg tested the germ-killing power of magnolia bark extract using saliva samples taken from volunteers following a regular meal. Mints containing the extract killed more than 61 percent of the germs that cause bad breath ...

Genetic ancestral testing cannot deliver on its promise, study warns

... there are mitochondrial DNA tests, which trace the mother's lineage, and Y-chromosome tests which track paternal ancestry. The test-taker swipes the saliva inside his or her cheek, and sends the swab to the lab. The DNA is extracted and compared to samples from a reference database of haplotypes - a set ...

Study finds that even aloof husbands have lower testosterone levels than unmarried men

... with their single counterparts, no study outside North America had observed this. The researchers measured testosterone in morning and afternoon saliva samples of more than 200 Ariaal men over the age of twenty. They found that monogamously married men had lower testosterone levels than unmarried men ...

Progress Against Malaria: Developments on the Horizon

... School of Public Health Macha: A Living Laboratory in Rural Zambia Douglas Norris, Ph.D., Johns Hopkins Malaria Research Institute Using Human saliva to Detect Malaria Infection Sungano Mharakurwa, Ph.D., Johns Hopkins Malaria Research Institute A Urine Dipstick for Malaria Diagnosis David ...

Extra gene copies were enough to make early humans' mouths water

... fed our large brains and opened up new food supplies that fueled our unrivaled colonization of the planet, Dominy said. The researchers sampled saliva from 50 European-American undergraduates and found as many as 15 copies of the amylase gene per person. By comparison, all 15 chimpanzees they ...

Truly sick or simply scared?

... means more precise readings. Researchers at PNNL are developing a portable biomonitor to rapidly evaluate tiny samples of blood or saliva for exposure to nerve agents. Lin achieves this by removing the iron from a nanoparticle-sized ball of the protein ferrin, creating an empty cage ...

The insect vector always bites twice

... the aim of identifying in the arthropod vector saliva the immunogenic proteins responsible. They called ... these proteins contained in an extract of total saliva of the culprit vector. This approach, based ... antibody response to identify exactly, in total saliva extract of Glossinia flies, the immunogenic ...

First biomarker for human sleepiness identified in fruit flies

... marker linked to sleep loss, an enzyme in saliva known as amylase, which increases in activity ... decided to look in saliva. Easily accessible, saliva contains many of the substances found in blood ... an increasingly popular target for diagnostics. saliva was also an attractive target for Shaw's lab ...

Forsyth scientists find three bacteria associated with oral cancer

... elevated levels of three particular bacteria in saliva indicate the presence of oral squamous cell ... lives by conducting large-scale screenings using saliva samples." The Forsyth scientists posit that ... The Forsyth approach, which focuses on testing saliva for particular bacteria, differs from --and could ...

Venom doc tracks down snake bioweapons

... glands for the storage and dispersal of their saliva approximately 60-80 million years ago. Since that ... newly derived toxins became a normal part of the saliva protein repertoire. To date, 24 different snake ... a necessary biochemical characteristic for saliva production in the snake venom glands. Fry also ...