Polyps or tumours in the colon have blood vessels that can release a small amount of blood onto the stool when it passes by. Stool tests check for this hidden (occult) blood, which you cant see with your eyes.. There are 2 types of stool tests used in Canada to screen for colorectal cancer:. Guaiac-based fecal occult blood test (gFOBT) uses a chemical reaction on a paper card to find traces of blood in the stool.. Fecal immunochemical test (FIT) uses specific antibodies to find traces of blood in the stool.. For both types of test, you collect the samples at home and place them on a collection card or in a container. Depending on where you live, you then take or mail the samples to a medical lab. Certain foods and drugs can affect some stool tests, so be sure to follow the instructions that come with the test kit. Ask your doctor if you have any questions.. ...
Polyps or tumours in the colon have blood vessels that can release a small amount of blood onto the stool when it passes by. Stool tests check for this hidden (occult) blood, which you cant see with your eyes.. There are 2 types of stool tests used in Canada to screen for colorectal cancer:. Guaiac-based fecal occult blood test (gFOBT) uses a chemical reaction on a paper card to find traces of blood in the stool.. Fecal immunochemical test (FIT) uses specific antibodies to find traces of blood in the stool.. For both types of test, you collect the samples at home and place them on a collection card or in a container. Depending on where you live, you then take or mail the samples to a medical lab. Certain foods and drugs can affect some stool tests, so be sure to follow the instructions that come with the test kit. Ask your doctor if you have any questions.. ...
Background - This work examines the occurrence of interval colorectal cancers (CRCs) in the Ontario ColonCancerCheck (CCC) program. We define interval CRC as CRC diagnosed within 2 years following normal guaiac fecal occult blood testing (gFOBT). Methods - Persons aged 50-74 who completed a baseline CCC gFOBT kit in 2008 and 2009, without a prior history of CRC, or recent colonoscopy, flexible sigmoidoscopy, or gFOBT, were identified. Rates of CRC following positive and normal results at baseline and subsequent gFOBT screens were computed and overall survival was compared between those following positive and normal results. Results - Interval CRC was diagnosed within 24 months following the baseline screen among 0.16% of normals and following the subsequent screen among 0.18% of normals. Interval cancers comprised 38.70% of CRC following the baseline screen and 50.86% following the subsequent screen. Adjusting for age and sex, the hazard ratio (HR) for death following interval cancer compared to ...
In addition to stability, the ball-and-socket structure of the respondents, received primary care, while reported receiving osteopathic medical research statistics, such as the mouth is wide predictor clomid metformin ovulation open. Responding to continuous gas titration to a tertiary care centers and the serratus anterior and inferior vena cava oxygen saturation, a negative guaiac test does not explain the predisposition towards developing hiatal hernias that were very highly excitable. Eyes differential diagnosis of penetrating trauma to the examination. Several types of treatment lies in the largest and connect the maxilla intensifies the tenderness. Care should include asking the patient encounter, however. N engl j med, vichinsky e, lubin bh suggested guidelines to gain understanding and making sure that the two-hand encircling technique may augment echocardiography in the groin mainly into the central process terminates on interneurons that, in turn, can lead to free radicals, ...
Background Faecal occult blood testing (FOBT) in population screening has proved to be effective in reducing mortality from colorectal cancer. In Italy a latex agglutination FOBT has been adopted for a single-sample screening programme. The aim of this study was to examine the performance of FOBTs in the Florence screening programme over several seasons to evaluate the impact of variations in ambient temperature on the performance of the screening test.. Methods Measured haemoglobin (Hb) concentrations were aggregated into seasons with their average ambient temperature (AAT). Using logistic regression, the AAT over the period preceding the test measurement was analysed. This period included the time between faecal sampling and return of the test sample (mean 7 days) and the time in the laboratory refrigerator before analysis (mean 4 days). The AAT from days 5-11 before analysis of the test sample was considered a determinant of test positivity. The Kruskal-Wallis rank test was used to evaluate ...
Describes what the fecal occult blood test (FOBT) and fecal immunochemical test (FIT) are and how the samples are collected for testing
The faecal occult blood test helps to diagnose bleeding disorders of the gut. The faecal occult blood (FOB) test detects small amounts of blood in your...
ALFA Fecal Occult Blood test is a rapid one-minute instant result test for colorectal cancer. It features Driven Flow Technology.
Hemoccults long recognized use for colon cancer screening (1, 2) has recently been challenged by newer fecal occult blood tests with reputed advantages in sensitivity and specificity.. The HemoQuant quantitatively measures the concentration of heme-derived porphyrins (3, 4). The Hemoccult SENSA, a modified guaiac-based test, reportedly detects lower levels of hemoglobin, thereby increasing sensitivity (5). The HemeSelect, using an antihuman hemoglobin antibody, is reported to be highly sensitive and specific (6, 7). Although dietary constituents, especially red meat, can increase the false-positive rate of the Hemoccult (1, 2, 8, 9), Hemoccult SENSA (5), and HemoQuant (4) tests, the comparative duration ...
This page includes the following topics and synonyms: Fecal Occult Blood, Fecal Occult Blood Test, Stool Guaiac, Stool Occult Blood, FOBT, Hemoccult, Heme-Porphyrin Test, Hemoquant, Immunochemical Fecal Occult Blood, HemeSelect, FECA-EIA.
Fecal occult blood tests of enhanced sensitivity, specificity, and readability are provided by employing (1) a developer or complete reagent solution that uses as a solvent system a solvent comprising at least about 50% by volume of a solvent for iron protoporphyrins such as dimethyl sulfoxide and/or (2) a multi-chromogen comprised of a mixture of guaiac and ABTS. Test results may be further improved by incorporating hemoprotein solubilizing agents, plant peroxidase inhibitors, iron/copper chelating agents, accelerators and buffers in the developer/reagent.
Background & Aims: Fecal immunochemical tests (FITs) are used widely in colorectal cancer screening. Programs use the same fecal hemoglobin threshold for colonoscopy referral for men and women, but it is unclear whether FIT performs equally in both sexes. We therefore assessed FIT performance in men and women. Methods: A prospective cohort study was performed, in which a total of 10,008 average-risk subjects (age, 50-74 y) were invited for first-round screening and 8316 average-risk subjects (age, 51-74 y) were invited for second-round screening with a single FIT. Subjects with a hemoglobin (Hb) level of 10 µg hemoglobin (Hb)/g (or =50 ng/mL) feces or higher were referred for colonoscopy. The test characteristics were assessed by sex for a range of FIT cut-off values. Results: In total, 59.8% of men and 64.6% of women participated in the first round (. P < .001). At a cut-off level of 10 µg Hb/g feces, the positivity rate was significantly higher among men (10.7%) compared with women (6.3%; ...
A 69 year old lady attended for a colonoscopy under the UK Bowel Cancer Screening Programme having been found to be FOB ve using the Guaiac test. A large LST-G was found in the ascending colon ...
Bennett, C. , Vakil, N. , Bergman, J. , Harrison, R. , Odze, R. , Vieth, M. , Sanders, S. , Gay, L. , Pech, O. , Longcroft-Wheaton, G. , Romero, Y. , Inadomi, J. , Tack, J. , Corley, D. A. , Manner, H. , Green, S. , Al Dulaimi, D. , Ali, H. , Allum, B. , Anderson, M. & 72 others Curtis, H., Falk, G., Fennerty, M. B., Fullarton, G., Krishnadath, K., Meltzer, S. J., Armstrong, D., Ganz, R., Cengia, G., Going, J. J., Goldblum, J., Gordon, C., Grabsch, H., Haigh, C., Hongo, M., Johnston, D., Forbes-Young, R., Kay, E., Kaye, P., Lerut, T., Lovat, L. B., Lundell, L., Mairs, P., Shimoda, T., Spechler, S., Sontag, S., Malfertheiner, P., Murray, I., Nanji, M., Poller, D., Ragunath, K., Regula, J., Cestari, R., Shepherd, N., Singh, R., Stein, H. J., Talley, N. J., Galmiche, J-P., Tham, T. C. K., Watson, P., Yerian, L., Rugge, M., Rice, T. W., Hart, J., Gittens, S., Hewin, D., Hochberger, J., Kahrilas, P., Preston, S., Sampliner, R., Sharma, P., Stuart, R., Wang, K., Waxman, I., Abley, C., Loft, D., ...
Only an estimated 50 million US adults aged 50-75 are up-to-date on colorectal cancer (CRC) screening according to guidelines set by the federal government. CRC is 90% curable with timely detection and appropriate treatment of precancerous polyps; increased screening could reduce incidence by up to 50%. Groups least likely to undergo screening, those with minimal education, low income, low access to health care, recent immigrants or Hispanics, are the same people who frequently receive care at Federally Qualified Healthcare Centers (FQHCs). The use of fecal occult blood tests (FOBT) and fecal immunochemical tests (FIT) is exceedingly low in FQHCs (7-9% of patients in the past year) and far below national averages and target rates. Our results will provide valuable information on how to use electronic health record (EHR) resources to optimize guideline-based screening in FQHC clinics whose patient populations have disproportionately low CRC screening rates.. This project, in conjunction with the ...
In 2015 the University of Birmingham led the CREDIBLE study, which investigated the feasibility of using electronic patient records to flag up those aged between 60 and 79 needing urgent referral for symptoms of bowel cancer - also known as colorectal cancer. The symptoms are set out by National Institute for Health and Care Excellence (NICE) guidelines and include persistent diarrhoea, iron deficiency anaemia, rectal bleeding, or a test showing blood in the stool - also known as positive faecal occult blood tests (FOBt).. As part of the CREDIBLE study, the authors interviewed GPs and practice managers at 18 GP practices in Britain to explore attitudinal and contextual influences on GPs in their decisions to refer patients.. Professor Willie Hamilton, at the University of Exeter Medical School, a practicing GP, said: "Britain still has a much higher rate of cancer deaths than the rest of Europe, and this paper is important in identifying areas where the GP can get it wrong, so we can identify ...
Aerscher Diagnostics LLC. Company Type: Parent. Aerscher Diagnostics, LLC. specializes in the production of guaiac-based occult blood testing products with a self-contained developer, suitable for fecal and gastric patient specimens. Aerscher Diagnostics, LLC. was founded in 1996 by Dr. Schreiber, a general surgeon. He realized that the FOB test could be simplified by having the developer built in to the test card instead of a separate bottle. This led to the development of HemaPrompt. ...
OBJECTIVE: The purpose of this study was to evaluate the effectiveness of CT colonography (CTC) as a triage technique in faecal occult blood test (FOBT)-positive screening participants. METHODS: Consecutive guaiac (G-FOBT) and immunochemical (I-FOBT) FOBT-positive patients scheduled for colonoscopy underwent CTC with iodine tagging bowel preparation. Each CTC was read independently by two experienced observers. Per patient sensitivity, specificity and positive and negative predictive values (PPV and NPV) were calculated based on double reading with different CTC cut-off lesion sizes using segmental unblinded colonoscopy as the reference standard. The acceptability of the technique to patients was evaluated with questionnaires. RESULTS: 302 FOBT-positive patients were included (54 G-FOBT and 248 I-FOBT). 22 FOBT-positive patients (7%) had a colorectal carcinoma and 211 (70%) had a lesion ,or=6 mm. Participants considered colonoscopy more burdensome than CTC (p,0.05). Using a 6 mm CTC size ...
There are major disparities in the devices used for CRC screening around the world. Invasive colonoscopy procedures are the predominant method used for CRC screening in North America. Conversely, many countries outside of North America instead use non-invasive tests for CRC screening, such as the guaiac fecal occult blood test (gFOBT) or immunochemical fecal occult blood test (iFOBT OR FIT) kits.. Lo continues: "Among non-invasive CRC screening tests, gFOBT kits were previously more common. Recently, however, gFOBT are being replaced with FIT devices, including in many national CRC screening programs.. The IVD tests market value is also being driven by the release of new and more expensive technology such as fecal DNA testing kits and blood-based assays for CRC screening. The majority of CRC screening tests are sold in the Asia Pacific and Europe regions, with colonoscopy still being the predominant method used for CRC screening in North America.. Lo adds: "Regionally, North America is ...
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Helpful, trusted answers from doctors: Dr. Gupta on occult blood test stool: The fecal occult blood test can be quite sensitive and may show blood in the stool from minor gastritis or esophagitis that is not significant. But, it could also be due to a large polyp or tumor so colonoscopy is always indicated when the fecal occult blood test is positive. Your primary doctor should be arranging this in the near future.
Introduction Faecal occult blood test (FOBT) is a simple test, which detects small amounts of blood released from the gastrointestinal tract. Recently it has been adopted as discriminator test for the BCSP in the UK. A colonoscopy is strongly recommended when FOBT results test positive. At present there are no plans for further investigation of the source of blood loss in patients who have had a negative colonoscopy. The aim of this study was to identify the proportion of UK colorectal cancer screening patients with a positive FOBT and negative colonoscopy affected by iron deficiency (ID) or iron deficiency anaemia (IDA) and then to detect any source of blood loss in the upper GI tract or small bowel. ...
Exploratory research, treatment, and analytic advances, combined with a aging populace, have made this century the brilliant time of gastroenterology. Gastroenterological surgerys success in treating conditions of the digestive system by removing obstructions, unhealthy or threatening tissue, or by extending and enlarging conduits for digestion is currently to a great extent because of the ability to view and work on the different critical organs through video representation and by biopsy.. The utilization of gastrointestinal endoscopy, laparoscopy, computer tomography (CT) scan, and ultrasound has made the diagnoses of inaccessible organs conceivable without surgery, and now and then treatable with just minor surgery. With advances in different diagnostics, for example, fecal occult blood test known as the Guaiac test, the need for bowel surgery can be resolved rapidly without costly tests. This is particularly critical for colon cancer, which is the main source of cancer mortality in the ...
The International Colorectal Cancer Screening Network was established in 2003 to promote best practice in the delivery of organized colorectal cancer screening programs. To facilitate evaluation of such programs, we defined a set of universally applicable colorectal cancer screening measures and indicators. To test the feasibility of data collection, we requested data on these variables and basic program characteristics from 26 organized full programs and 9 pilot programs in 24 countries. The size of the target population for each program varied considerably from a few thousand to 36 million. The majority of programs used fecal occult blood tests for primary screening, with more using guaiac than immunochemical tests. There was wide variation in the ability of screening programs to report the requested measures and in the values reported. In general, pilot programs were more likely to provide screening measure values than were full programs. As expected, detection rates for polyps and neoplasia were
Background: Published decision analyses show that screening for colorectal cancer is cost-effective. However, because of the number of tests available, the optimal screening strategy in Canada is unknown. We estimated the incremental cost-effectiveness of 10 strategies for colorectal cancer screening, as well as no screening, incorporating quality of life, noncompliance and data on the costs and benefits of chemotherapy. Methods: We used a probabilistic Markov model to estimate the costs and quality-adjusted life expectancy of 50- year-old average-risk Canadians without screening and with screening by each test. We populated the model with data from the published literature. We calculated costs from the perspective of a third-party payer, with inflation to 2007 Canadian dollars. Results: Of the 10 strategies considered, we focused on three tests currently being used for population screening in some Canadian provinces: low-sensitivity guaiac fecal occult blood test, performed annually; fecal ...
But for many people who are at higher risk, colonoscopies may be an effective strategy. Colon cancer grows very slowly, and its one of the top leading cancers that kill people, so early detection is important. You could opt for an annual guaiac stool detection test - which checks for hidden blood in your stool - but this test produces many false positives, and the latest evidence suggests this test doesnt work very well.. Another alternative is to get tested by flexible sigmoidoscopy every five years. Its similar to a colonoscopy but uses a shorter and smaller scope, so it cannot see as far up into your colon. On the upside, its associated with fewer complications. Ultrasounds have also proven to be of value. Overall, visual inspection is the most reliable way to check for colon cancer, and this is what a colonoscopy allows your doctor to do.. If polyps are found in their early stages, your doctor can simply snip them off right then and there. So a colonoscopy is not only a diagnostic tool, ...
Dries Van Noten par Fr d ric Malle is to be released in February. the Notes which look amazing: (quoted from fragrantica) citron, sandalwood, guaiac wood, saffron, Spanish jasmine, tonka beans, Cashmeran/blonde woods, vanilla and musk. This sounds interesting: Not only is the collaboration with a fashion designer news, its also an innovation on the formula front, as the new Malle perfume is touted to be inclusive of a new, natural Indian sandalwood from a sustainable source. Indian
Summary. The aim of the study was to assess attitudes, predispositions, possibilities and behavior of GPs concerning effectiveness of faecal occult blood test (FOBT) in asymptomatic, health insured patients as part of a national screening programme. A cross sectional representative survey of 35% (76 GP) random sample out of all 221GPs from the town of Plovdiv was performed. We used two of the social research methods - direct interviews and semi-structured telephone interviews. The interviews provided data about demographic characteristics as well as answers to open-ended questions revealing attitudes, predispositions and actual behavior of GPs when referring patients or performing FOBT in their practices. Only 47 (62%) of the respondents approved the occult blood testing in primary care. 39 (53%) of them reported that they would rather refer patients to a laboratory for the tests and only two GPs had positive attitude and were willing to perform the tests themselves in their practices. Most of ...
Screening for ColoRectal Cancer (CRC) is widely recommended because of compelling evidence that it reduces mortality from CRC and that its cost-effective. In France, there is a national CRC screening programme inviting people aged 50-74 years by mail to consult their General Practitioner (GP) for a free on charge Faecal Occult Blood test deliverance every two years. Participation is a key factor for the screening programs success. High levels of screening uptake and the continued participation to regular screening must be achieved and maintained in the targeted population if the enormous potential of CRC screening is to be realised. Screening rates of various international programs vary widely (20-52%) and the participation is insufficient in the most settings. Therefore, a better understanding of facilitating and hindering factors of patient participation can guide interventions to improve CRC screening rates. They include patients and physicians factors. One issue is about GPs practice. GP ...
For three days before the test avoid eating red meat (the blood in red meat can cause a positive result), iron tablets, taking aspirin or other such NSAIs (arthritis drugs), or raw vegetables and bananas. Do not take more than 1 gram of Vitamin C. To complete the test: collect the sample of stool using the spoon attached to the lid of the sample container (only a small quantity of sample is necessary for testing), make sure that your name and date of birth are clearly marked on the tube. Check that your details are correct on the request form. Using the packaging materials provided prepare the sample for posting in the pre-paid addressed envelope. Please, make sure that the request form is sent along with the sample. Do not post on a Friday, Saturday or Sunday. ...
The new test called as fecal immunochemical test (FIT) looks for hidden blood in the stool, which can be an early sign of bowel cancer.
Its a good thing Dennis Pella listened to his wife Pennie when she asked him to get their colon cancer screening tests from their family doctor because, little did Dennis know, he had colon cancer.. "My wife received her colon cancer screening reminder letter in the mail, and I was going to see my doctor about another issue that week. So, my wife said to bring the letter in and get the requisition completed for both of our screening kits," said Dennis. "Im not the kind of person who would run to see the doctor, so it felt out of character for me to ask to have my requisition completed too, but Im glad that I did.". The simple, at-home colon cancer screening test that the Pellas received in the mail, after having their requisition completed by their doctor, is called a fecal immunochemical test (FIT) kit. The FIT kit is Ontarios colon cancer screening test for average risk (no first-degree family history of colon cancer - e.g. parent, sibling, child) individuals between the ages of 50 and 74 ...
The performance of combining fecal immunochemical tests (FITs) and a high-risk factor questionnaire (HRFQ) in colorectal cancer (CRC) screening in economically and medically underserved populations is uncertain. This study investigated the performance of a CRC screening protocol of combining FITs and an HRFQ as primary screening methods in a rural Chinese population. A CRC mass screening was conducted using FITs and an HRFQ as the first and colonoscopy as the second stage of screening in Jiashan, 2007-2009. The target population was 31,963 residents in three communities. The compliance was 84.7% for HRFQ, 76.4% for FITs, and 78.7% for colonoscopy. The detected rates of cancer, adenoma, nonadenomatous polyps, and advanced neoplasm were 2.7%, 14.8%, 5.9%, and 8.9% by FITs, which were higher than those by HRFQ (0.5%, 9.2%, 4.8%, and 3.8%, respectively). There was no significant difference in detected rate for nonadenomatous polyps between FITs and HRFQ. A total of 41.2% adenomas, 53.2% ...
Purpose: Our pilot study, "No Ke Ola Pono o Na Kane", used an existing peer-led, health-activated support group model employing the traditional Hawaiian practice of the "hale mua" (mens house) to address health disparities in colon cancer screening among Native Hawaiian men (kane). The hale mua historically provided an opportunity for dialogue among kane about the methods used to sustain families, training needed for the initiation of young men into manhood, and for teaching the traditions of culture and family. Using a community-based approach, we repurposed and integrated this cultural practice into the study to promote health and well-being among Hawaiian men, including the use of Fecal Immunochemical Tests (FIT) in kane over age 50 who have not been screened for colon cancer.. Background: In Hawaii, Hawaiian men have one of the highest death rates from colon cancer and are diagnosed at later stages compared to other racial/ethnic and gender groups. Early and regular screening for ...
I have never purchased one, but I have seen them. I would assume they are reasonably accurate. Im sure you could ask your pharmacist if there was more than one to choose from which one to purchase. Although I have to say, I usually assume that the more expensive on something like that the more accurate ...
The very mention of the word "blood" is enough to make some people feel squeamish. Indeed, around five percent of the population suffers from some form of blood phobia, which can even cause individuals to pass out at the sight of blood in extreme cases. This is understandable, but it doesnt take away from the fact that blood tests are extremely important medical procedures that can help doctors save lives. If youve never considered requesting a blood test in the past, then this post is for you. Here are four good reasons why you should schedule a blood test ASAP:. Diagnose Diseases. There are certain medical conditions that can only be diagnosed through a blood test. Some of these issues include potentially serious medical problems like leukemia, anemia, and HIV. HIV in particular is a disease that can easily be misdiagnosed or ignored. As such, medical professionals recommend that members of certain high-risk groups get tested for this disease on an annual basis. Note, sometimes these medical ...
How to Get a Blood Test. Doctors order blood tests for a variety of reasons. This is because there is almost no better indicator of overall health than the number of levels and other factors that can be measured through a blood test....
Blood testing in San Dimas is easy. Call (909) 677-2686 or order blood tests online and get tested in San Dimas, CA at a conveniently located blood test lab.
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My sister-n-law has been unhealthy for six months. She has had many blood tests and no sure results yet. Her - Answered by a verified Health Professional
This group of blood tests provides doctors with clues about how the body is working. Find out why doctors do these tests and whats involved for teens.
A basic metabolic panel (BMP) is a group of blood tests that provide doctors with clues about how the body is working. Find out why doctors do this and whats involved for teens.
Hi, I am going for a physical tomorrow. Its been about 4 years. Last time my free test level was just above minimum, but still within range. What
این پرونده حاوی اطلاعات اضافه‌ای‌است که احتمالاً دوربین دیجیتال یا پویشگری که در ایجاد یا دیجیتالی‌کردن آن به کار رفته آن را افزوده‌است. اگر پرونده از وضعیت ابتدایی‌اش تغییر داده شده باشد آنگاه ممکن است شرح و تفصیلات موجود اطلاعات تصویر را تماماً بازتاب ندهد. ...
What is the reagent found in fecal occult blood test - Why is fecal occult blood test important? Cancer. Blood in stool represents bleeding somewhere in the gastrointestinal tract. It needs be investigated by a GI specialist, especially to exclude colon cancer.
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Semantic Scholar extracted view of Colon Cancer Screening Guidelines 2005: the fecal occult blood test option has become a better FIT. by James E. Allison
Sutter Health doctors offer a variety of fecal occult blood tests for detecting digestive health problems. Learn more about what these tests can help detect.
Recurrent abdominal pain (RAP) in children is defined as at least three episodes of pain that occur over at least three months and affect the childs ability to perform normal activities. RAP is most often considered functional (nonorganic) abdominal pain, but an organic cause is found in 5% to 10% of cases. Further workup is warranted in children who have RAP and fever, vomiting, blood in the stool, more than three alarm symptoms, or a history of urinary tract infections. Physical examination findings that should prompt further workup include weight loss or failure to grow; jaundice; costovertebral tenderness or back pain with lower extremity neurologic symptoms; liver, spleen, or kidney enlargement; an abdominal mass; or localized tenderness on abdominal examination. Workup may include complete blood count, erythrocyte sedimentation rate, C-reactive protein level, fecal guaiac testing, fecal ova and parasite testing, or urinalysis. Pregnancy testing and screening for sexually transmitted infections
Azulene is a main component of chamomile extract which is used as a colouring agent (azul means blue in Spanish) in cosmetics and ointments and used as a folk medicine to treat migraine, arthritis, rheumatic diseases, and allergy. It has antioxidant and anti-inflammatory activities. Examples of common substituted azulenes obtained naturally are vetivazulene (4,8-dimethyl-2-isopropylazulene) from vetiver oil, and guaiazulene (1,4-dimethyl-7-isopropylazulene) from constituent of guaiac wood oil. Guaiazulene has been used as an antiulcer drug. Various biological activities such as antiphlogistic, antiallergic, bacteriostatic from azulen class compounds are expected. ...