guaiac


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guaiac

[′gwī‚ak]
(materials)
A resin obtained from the trees Guaiacum santum and G. officinale; soluble in alcohol, ether, and chloroform; used in medicine and varnish.
References in periodicals archive ?
Preliminary in-house studies showed that the analytic sensitivities of the kits were 20 [micro]g Hb/g of stool (NS Plus and OC Diana), 50 [micro]g Hb/g of stool (Immunostics FIT), 100 [micro]g Hb/g of stool (ulti med), 500 to 1000 [micro]g Hb/g of stool (Beckman ICT), and 500 [micro]g Hb/ g of stool (Immunostics Guaiac).
The results of prospective and retrospective studies have confirmed that sigmoidoscopy and colonoscopy, which were performed for either diagnostic reasons in screening or monitoring, statistically significantly reduce incidence and mortality from colorectal cancer, and meta-analysis proved that in comparison with the so-called non interventional group colonoscopy decreased the colorectal cancer mortality by 57%, sigmoidoscopy by 40% and guaiac fecal occult blood test by 18%.
An annual guaiac fecal occult blood test or a fecal immunochemical test (FIT) is an initial screening option, evaluating the stool for blood.
Although colonoscopy has higher per-test sensitivity than fecal occult blood tests (FOBTs) such as the guaiac FOBT and the Fecal Immunochemical Test (FIT), it is much more expensive.
Radix glycyrrhizae oral solution contains licorice liquid extract, camphor tincture and guaiac glycerol ether and has previously been shown to be active in the experimental models used in the present study.
In the United Kingdom, a pilot study was conducted that showed approximately 60% of those invited participated in a colorectal cancer screening pilot before full implementation of the Bowel Cancer Screening Programme, which screens adults aged 60-69 years for colorectal cancer every 2 years with guaiac fecal occult blood testing; follow-up colonoscopy is available for persons with abnormal test results (7).
The Cemex-BirdLife partnership in the Dominican Republic is making significant progress: extensive field surveys revealed threatened reptiles and 67 new records of plant species for the area around the Las Salinas quarry, including the endemic, threatened Guaiac Tree.
For a classic reinvention of its venerable Polo scent, Ralph Lauren has taken an Indian oud and blended it with vetiver and guaiac wood.
The fragrance launched last fall, and is inspired by "cocktail time in London in March 1930." It is made with some of the ingredients found in a gin martini--juniper berry oil, Angelica root, lemon peel oil, bitter orange, pepperwood, guaiac wood, oakwood, vanilla absolute and amber.
* asymptomatic (no signs or symptoms of colorectal disease including but not limited to lower gastrointestinal pain, blood in stool, positive guaiac fecal occult blood test or fecal immunochemical test), and
According to American Cancer Society, the US Multi-Society Task Force on CRC and the American College of Radiology guidelines, screening of adenomatous polyps and CRC in average-risk adults should begin at age 50 years with one of the following options: 1) annual guaiac Fecal Occult Blood Test (gFOBT) or Fecal Immunochemical Test (FIT) or testing stool for exfoliated cell DNA, 2) flexible sigmoidoscopy every 5 years; 3) colonoscopy every 10 years, 4) double-contrast barium enema every 5 years, or 5) CT colonography every 5 years (7-10).
One uses a dye for detection, guaiac FOBT, and the other fecal immunochemical testing uses specific immunoglobulin.