Featured Research

from universities, journals, and other organizations

Taste, Odor Intervention Improves Cancer Therapy, According To Study

Date:
April 2, 2009
Source:
Virginia Tech
Summary:
Cancer therapies, including chemotherapy and radiotherapy, may alter and damage taste and odor perception, possibly leading to patient malnutrition, and in severe cases, significant morbidity. Scientists conducted a study to provide researchers and physicians with a better understanding of the types and causes of taste and odor dysfunctions so that they can develop treatments and improve the quality of life of their patients.

Cancer and its therapies, including chemotherapy and radiotherapy, may directly alter and damage taste and odor perception, possibly leading to patient malnutrition, and in severe cases, significant morbidity, according to a Virginia Tech – Wake Forest University Comprehensive Cancer Center compilation of various existing studies.

Related Articles


One of the purposes of the study, said Andrea Dietrich, professor of civil and environmental engineering (CEE) at Virginia Tech, is to provide researchers and physicians with a better understanding of the types and causes of taste and odor dysfunctions so that they can develop treatments for these conditions and improve the quality of life of their patients. According to Susan Duncan, professor of food science and technology at Virginia Tech, a bad taste in the mouth can lead to poor nutrition because patients avoid eating.

Approximately two thirds of cancer patients who receive chemotherapy report altered sensory perception, such as decreased or lost taste acuity or metallic taste. Altered sensory perception causes psychological anxiety and malnutrition, and thus negatively impacts the chances of survival for cancer patients, as reported in an earlier study conducted by Duke University.

Dietrich, an expert on water quality and treatment, as well as the taste and odor assessment of water, has expanded upon her knowledge of this field to include such assessments in cancer patients. She worked with Jae Hee Hong, Susan E. Duncan, and Brian T. Stanek of Virginia Tech's Food Science and Technology Department, Pinar Omur-Ozbek, also of CEE, Yong Woo Lee of Virginia Tech's School of Biomedical Engineering and Glenn Lesser, a physician of hematology and oncology at Wake Forest.

Their joint paper reports the "alteration of taste and smell in (cancer) patients has been understudied compared with other aspects of cancer research."

They based their work on numerous previous studies that reported on changes in taste acuity, taste quality, odor perception, food aversion, and xerostomia (dry mouth) causing taste alteration. Findings from these studies showed changes in taste acuity are dependent on the site of the tumor with head and neck patients reporting more complaints than do patients with other types of cancer such as breast or lung. The most prevalent taste alteration reported is the perception of a metallic or bitter taste, with red meat often cited as a cause. Another earlier study showed aversion to food is now occurring in as much as 55 percent of the patients receiving chemotherapy or radiotherapy.

From their review of the literature, the research team put together a listing of management strategies to improve taste and odor abnormalities for cancer patients. These include: avoiding the use of metallic silverware and reducing the consumption of foods that have a metallic or bitter taste such as red meat, coffee or tea. On the positive side, patients should increase their consumption of high-protein foods, add seasonings and spices to enhance flavors in some cases, practice good oral hygiene, and use agents such as sugar free gums and sour tasting drops to stimulate salivary secretion.

Dietrich explained their study of the literature, and synopsis of it, is meant to increase the recognition by oncologists and physicians of the disturbances cancer patients experience in their ability to taste and smell. "Oncologists who understand the types and causes of taste and olfactory abnormalities may be better prepared to discuss and empathize with these negative side effects," she and her colleagues concluded. And physicians could improve their relationships with their patients, sharing "possible mediation strategies," and directly affecting the recovery of patients.


Story Source:

The above story is based on materials provided by Virginia Tech. Note: Materials may be edited for content and length.


Journal Reference:

  1. Taste and Odor Abnormalities in Cancer Patients. Journal of Supportive Oncology, March/April 2009

Cite This Page:

Virginia Tech. "Taste, Odor Intervention Improves Cancer Therapy, According To Study." ScienceDaily. ScienceDaily, 2 April 2009. <www.sciencedaily.com/releases/2009/03/090331183516.htm>.
Virginia Tech. (2009, April 2). Taste, Odor Intervention Improves Cancer Therapy, According To Study. ScienceDaily. Retrieved April 20, 2015 from www.sciencedaily.com/releases/2009/03/090331183516.htm
Virginia Tech. "Taste, Odor Intervention Improves Cancer Therapy, According To Study." ScienceDaily. www.sciencedaily.com/releases/2009/03/090331183516.htm (accessed April 20, 2015).

Share This


More From ScienceDaily



More Health & Medicine News

Monday, April 20, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Humanoid Robot Can Recognise and Interact With People

Humanoid Robot Can Recognise and Interact With People

Reuters - Innovations Video Online (Apr. 20, 2015) An ultra-realistic humanoid robot called &apos;Han&apos; recognises and interprets people&apos;s facial expressions and can even hold simple conversations. Developers Hanson Robotics hope androids like Han could have uses in hospitality and health care industries where face-to-face communication is vital. Matthew Stock reports. Video provided by Reuters
Powered by NewsLook.com
Labour Party Warns Britain's Health Service 'on Life Support'

Labour Party Warns Britain's Health Service 'on Life Support'

AFP (Apr. 20, 2015) Britain&apos;s opposition Labour Party Monday claimed the National Health Service (NHS) was &apos;on life support&apos; as it turned its attention to the state-run service, which is a key issue for the UK&apos;s May 7 general election. Video provided by AFP
Powered by NewsLook.com
Sierra Leone Students Back to School After Long Ebola Closure

Sierra Leone Students Back to School After Long Ebola Closure

Reuters - News Video Online (Apr. 20, 2015) After an eight-month break, children in Sierra Leone return to school for the first time since the beginning of the Ebola outbreak. Nathan Frandino reports. Video provided by Reuters
Powered by NewsLook.com
Teen E-Cigarette Use Triples, Government Debates Regulations

Teen E-Cigarette Use Triples, Government Debates Regulations

Newsy (Apr. 19, 2015) The Centers for Disease Control and Prevention says in 2014, 13.4 percent of high school students reported smoking an e-cigarette within 30 days. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins