Cancer News

ScienceDaily (Sep. 16, 2008) — A new study from the National Institutes of Health finds that massage therapy may have immediate benefits on pain and mood among patients with advanced cancer. The study appears in the September 16, 2008 issue of Annals of Internal Medicine.

In a randomized trial of 380 advanced cancer patients at 15 U.S. hospices, improvement in pain and mood immediately following treatment was greater with massage than with simple touch.

“When patients near the end of life, the goals of medical care change from trying to cure disease to making the patient as comfortable as possible,” said Jean S. Kutner, MD, MSPH, Associate Professor of Medicine, Division of General Internal Medicine at the University of Colorado Denver School of Medicine. “This study is important because it shows massage is a safe and effective way to provide immediate relief to patients with advanced cancer.”

Pain and depressed mood are common problems for patients with advanced cancer. While drug therapies can reduce symptoms, they don’t always work and often have troublesome side effects. Researchers think that massage may interrupt the cycle of distress, offering brief physical and psychological benefits. Physically, massage may decrease inflammation and edema, increase blood and lymphatic circulation, and relax muscle spasms. Psychologically, massage may promote relaxation, release endorphins, and create a positive experience that distracts temporarily from pain and depression.

Researchers caution that while massage may offer some immediate relief for patients with advanced cancer, the effects do not last over time, demonstrating the need for more effective strategies to manage pain at the end of life.

Adapted from materials provided by American College of Physicians, via EurekAlert!, a service of AAAS.

The immune system is the system of specialized cells and organs that protect an organism from outside biological influences.

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(Though in a broad sense, almost every organ has a protective function - for example, the tight seal of the skin or the acidic environment of the stomach.) When the immune system is functioning properly, it protects the body against bacteria and viral infections, destroying cancer cells and foreign substances.

If the immune system weakens, its ability to defend the body also weakens, allowing pathogens, including viruses that cause common colds and flu, to grow and flourish in the body.

The immune system also performs surveillance of tumor cells, and immune suppression has been reported to increase the risk of certain types of cancer..

For more information about the topic Immune system, read the full article at Wikipedia.org, or see the following related articles:

Natural killer cell — Natural killer cells (also known as NK cells, K cells, and killer cells) are a type of lymphocyte (a white blood cell) and a component of innate …  > read more

White blood cell — White blood cells (also called leukocytes or immune cells) are cells which form a component of the blood. They help to defend the body against …  > read more

T cell — T cells are a subset of lymphocytes that play a large role in the immune response. The abbreviation “T” stands for thymus, the organ in which their …  > read more

Antiviral drug — Antiviral drugs are a class of medication used specifically for treating viral infections. Like antibiotics, specific antivirals are used for …  > read more

Note: This page refers to an article that is licensed under the GNU Free Documentation License. It uses material from the article Immune system at Wikipedia.org. See the Wikipedia copyright page for more details.

Routine Oral Care

Continuing good dental hygiene during and after cancer treatment can reduce complications such as cavities, mouth sores, and infections. It is important to clean the mouth after eating. The following are guidelines for everyday oral care during chemotherapy and radiation therapy:

Tooth brushing

• Brush teeth and gums with a soft bristle brush 2 to 3 times a day for 2 to 3 minutes.

• Rinse the toothbrush in hot water every 15 to 30 seconds to soften the bristles, if needed.

• If it is necessary to use a foam toothbrush, use it with an antibacterial rinse, when possible.

• Allow the toothbrush to air dry between brushings.

• Choose toothpaste with care:
  • Use a mild-tasting toothpaste; flavoring may irritate the mouth.
  • If toothpaste irritates the mouth, brush with a solution of 1 teaspoon of salt added to 4 cups (1 quart) of water.
  • Use a fluoride toothpaste.

Rinsing

• Rinse the mouth 3 or 4 times while brushing.
• Avoid rinses containing alcohol.
• One of the following rinses made with salt and/or baking soda may be used:
  • 1 teaspoon of salt in 4 cups of water.
  • 1 teaspoon of baking soda in 1 cup (8 ounces) of water.
  • ½ teaspoon salt and 2 tablespoons baking soda in 4 cups of water.
• An antibacterial rinse may be used 2 to 4 times a day for gum disease. Rinse for 1 to 2 minutes.
• If dry mouth occurs, rinsing may not be enough to clean the teeth after a meal. Brushing and flossing may be needed.

Flossing

• Floss gently once a day.

Lip care

• Use lip care products to prevent drying and cracking.

Oral Mucositis

Mucositis is an inflammation of mucous membranes in the mouth.

The terms “oral mucositis” and “stomatitis” are often used in place of each other, but their meanings are different.

• Mucositis is an inflammation of mucous membranes in the mouth. It usually appears as red, burn-like sores or as ulcer -like sores throughout the mouth.

• Stomatitis is an inflammation of tissues in the mouth, such as the gums, tongue, roof and floor of the mouth, and tissues inside the lips and cheeks. It includes infections of mucous membranes.

Mucositis may be caused by either radiation therapy or chemotherapy. In patients receiving chemotherapy, mucositis will heal by itself, usually in 2 to 4 weeks when there is no infection. Mucositis caused by radiation therapy usually lasts 6 to 8 weeks, depending on the duration of treatment.

The following problems may occur:

• Pain.
• Infection.
• Bleeding, in patients receiving chemotherapy. Patients undergoing radiation therapy usually do not have a bleeding risk.
• Inability to breathe and eat normally.

Swishing ice chips in the mouth for 30 minutes may help prevent mucositis from developing in patients who are given fluorouracil. Medication may be given to help prevent mucositis or keep it from lasting as long in patients who undergo high-dose chemotherapy and bone marrow transplant.

Care of mucositis during chemotherapy and radiation therapy focuses on cleaning the mouth and relieving the symptoms.

Treatment of mucositis caused by either radiation therapy or chemotherapy is generally the same. After mucositis has developed, proper treatment depends on its severity and the patient’s white blood cell count. The following are guidelines for treating mucositis during chemotherapy, stem cell transplantation, and radiation therapy:

Cleaning the mouth

• Clean the teeth and mouth every 4 hours and at bedtime, more often if the mucositis becomes worse.

• Use a soft bristle toothbrush.

• Replace the toothbrush often.

• Use water-soluble lubricating jelly to moisturize the mouth.

• Use bland rinses or plain sterile water. Frequent rinsing removes particles and bacteria from the mouth, prevents crusting of sores, and moistens and soothes sore gums and the lining of the mouth. The following rinse may be used to neutralize acid and dissolve thick saliva:
  • ½ teaspoon salt and 2 tablespoons baking soda in 4 cups of water.

• If crusting of sores occurs, the following rinse may be used:
  • Equal parts hydrogen peroxide and water or saltwater (1 teaspoon of salt in 4 cups of water).

This should not be used for more than 2 days because it will keep mucositis from healing.

http://www.cancer.gov

ScienceDaily (Apr. 18, 2007) — Using Chinese herbs either alone or in conjunction with chemotherapy may help protect a breast cancer patient’s bone marrow and immune system, as well as improving the woman’s overall quality of life.

Sixty per cent of women undergoing chemotherapy for breast cancer experience a range of significant short term side effects. These include nausea, vomiting and fatigue, as well as inflammation of the gut lining, decreased numbers of red and white blood cells and decreased numbers of blood platelets.

Chinese medicinal herbs include mixtures of herbal compounds or extracts from herbs, and they are prescribed to counteract the side effects of chemotherapy. This Cochrane Systematic Review set out to see if there is conventional evidence indicating that these medicines are safe and whether there is evidence that the medicines are effective.

The researchers identified seven randomised studies involving 542 patients with breast cancer. By analysing these data, the researchers concluded that there was no evidence that the Chinese medicinal herbal treatment caused harm, and some evidence that it might reduce side effects.

“Further trials are needed before the effects of traditional Chinese medicines for people with breast cancer can be evaluated with any real confidence,” says Assistant Professor Jing Li, who works at the Chinese Cochrane Centre in Chengdu, China.

John Wiley & Sons, Inc. (2007, April 18). Traditional Chinese Medicinal Herbs May Help Women With Breast Cancer. ScienceDaily. Retrieved December 4, 2007.

By Stephen Daniells
Curcumin, the natural pigment that gives the spice turmeric its yellow colour, may protect against heart failure - in mice at least - suggests a new study from Canada class. When the pigment was given to mice with enlarged hearts (hypertrophy), heart function was restored and scar formation reduced, report the researchers in the February edition of the Journal of Clinical Investigation Lead researcher Peter Liu, scientific director at the Canadian Institutes of Health Research - Institute of Circulatory and Respiratory Health said that curcumin might be a safe and effective means of preventing heart failure in the future, given that it is naturally occurring and readily available at a low cost.”Whether you are young or old; male or female; the larger your heart is, the higher your risk is for developing heart attacks or heart failure in the future. However, until clinical trials are done, we don’t recommend patients to take curcumin routinely. You are better off to take action today by lowering blood pressure, reducing cholesterol, exercising and healthy eating,” he said.

Curcumin has come under the scientific spotlight in recent years, with studies investigating its potential benefits for reducing cholesterol levels, improving cardiovascular health, and fighting cancer.

Some experts recommend however that consumers wishing to make use of curcumin’s properties consume it in supplement form rather than eating more curries, which tend to be rather high in fat in their Western form.

The Canadian researchers found that curcumin appeared to work by preventing abnormal unravelling of the chromosome under stress, in addition to preventing excessive abnormal protein production. The pigment was administered as a curcumin suspension using 0.5 per cent carboxy-methylcellulose solution,

“Curcumin’s ability to shut off one of the major switches right at the chromosome source where the enlargement and scarring genes are being turned on is impressive,” said Liu. However he cautioned that moderation is important, “the beneficial effects of curcumin are not strengthened by eating more of it.”

Specifically, the pigment was found to act on p300-histone acetyltransferase (HAT), reportedly the most important HAT in muscle that “modifies chromatin and associated transcription factors and promotes gene activation, wrote the researchers.

The study was funded by the Heart and Stroke Foundation and the Canadian Institutes of Health Research.

“This study is relevant to the understanding of the inhibitory effect of curcumin on cardiac hypertrophy and related molecular mechanisms,”wrote the researchers.”It also serves to elucidate the dominant signaling pathways leading to cardiac hypertrophy, inflammation, and fibrosis in response to hypertrophic stimuli.”

“Curcumin is a natural polyphenolic compound that has already been used clinically and is approved by the FDA as a safe food additive. Future studies should examine the hypothesis that curcumin may be a safe and effective approach to preventing and treating cardiac hypertrophy and the transition to failure,” they concluded.

Supporting data

In a related article in the same journal, Tatsuya Morimoto and co-workers from the National Hospital Organization in Kyoto report similar findings from a study with rats. The Japanese researchers tested curcumin in two models of heart failure - heart disease associated with high blood pressure in salt-sensitive rats, and surgically-induced myocardial infarction in rats.

They report that, in both cases, the pigment prevented increases in heart muscle wall thickness after heart failure.

“We believe that the use of curcumin, which targets nuclear signaling pathways in cardiomyocytes, will provide a novel therapeutic strategy against heart failure,” wrote Morimoto and co-workers. “Future application of this nontoxic dietary natural compound as a therapeutic agent for heart failure in humans would be particularly interesting.”

Curcumin-based treatments are currently in clinical trials for pancreatic and colorectal cancer patients with promising results.

Sources: Journal of Clinical Investigation
Available online, Free Access, doi: 10.1172/JCI32865
“Curcumin prevents and reverses murine cardiac hypertrophy”
Authors: Hong-Liang Li, C. Liu, G. de Couto, M. Ouzounian, M. Sun, A.-B. Wang, Y. Huang, C.-W. He, Y. Shi, X. Chen, M.P. Nghiem, Y. Liu, M. Chen, F. Dawood, M. Fukuoka, Y. Maekawa, L. Zhang, A. Leask, A.K. Ghosh, L.A. Kirshenbaum, P.P. Liu

Journal of Clinical Investigation
Available online, Free Access, doi: 10.1172/JCI33160
“The dietary compound curcumin inhibits p300 histone acetyltransferase activity and prevents heart failure in rats”
Authors: T. Morimoto, Y. Sunagawa, T. Kawamura, T. Takaya, H. Wada, A. Nagasawa, M. Komeda, M. Fujita, A. Shimatsu, T. Kita, K. Hasegawa

Janice and Rodney Dietert display herbal and fungal medicinal sources that show promise for addressing developmental immunotoxicity (DIT) and DIT-associated diseases. On the tray are: sang-hwang mushroom, Panax ginseng, echinacea, shiitake mushroom and astragalus. (Credit: Image provided by Cornell University)

ScienceDaily (May 3, 2007) — A Cornell researcher and his wife have conducted the first comprehensive review of later-life diseases that develop in people who were exposed to environmental toxins or drugs either in the womb or as infants. They have found that most of the diseases have two things in common: They involve an imbalanced immune system and exaggerated inflammatory reactions (at the cellular level).

In an invited, peer-reviewed article on developmental immunotoxicity (DIT), published in a recent issue of Current Medicinal Chemistry, Rodney Dietert, professor of immunotoxicology at Cornell’s College of Veterinary Medicine, and Janice Dietert of Performance Plus Consulting in Lansing, N.Y., found that almost all the chronic diseases that are associated with DIT share the same type of immunological damage.

The diseases linked to DIT include asthma, allergy, suppressed responses to vaccines, increased susceptibility to infections, childhood neurobehavioral conditions, autoimmunity, cancer, cerebral palsy, atherosclerosis, hypertension and male sterility.

Toxins that are known to cause developmental immune problems in fetuses and neonates, according to the Dieterts, include herbicides, pesticides, alcohol, heavy metals, maternal smoking, antibiotics, diesel exhaust, drugs of abuse and PCBs.

Antidotes to DIT, the researchers note, could come from a variety of sources, including herbal and fungal chemicals — from mushrooms to clover — which appear to have promise.

Two immune processes — T helper (Th) cell balances and dendritic cell maturation — are both compromised in ways that disrupt the regulation of inflammatory cell function, which leads to exaggerated inflammatory responses.

“Most therapeutic approaches have looked at specific disease outcomes from DIT, rather than focusing on the underlying immune dysfunction that creates the increased disease risk,” said Rodney Dietert, who also presented his findings March 28 at the annual Society of Toxicology meeting in Charlotte, N.C. “Instead, we looked at the common immune dysfunction that is related to a host of diseases.”

Knowing the most common immune dysfunction patterns from DIT allows researchers to consider more seriously those “medicinals with the capacity to restore inflammatory cell regulation, promote dendritic cell maturation and restore desirable Th balance that would be the most likely candidates to combat the problems resulting from DIT.”

Focusing on studies of herbal and fungal chemicals, the Dieterts scoured the literature and found that some of the chemicals appear to be particularly promising when taken at appropriate doses. These include: Astragalus; Echinacea (purple coneflower); sang-hwang shiitake, reishi, maitake and snake butter mushrooms, black seed, Asian ginseng, milk vetch root, wild yam, Sophoro root and Greek clover (all of these also go by various other names).

In their paper, the Dieterts also list a multitude of substances that have been found to have “an uncertain impact” on DIT as well as several found to exacerbate immune dysfunction (including marijuana).

“We hope that these findings of persistent immune dysfunction from gestational exposure will provide encouragement for additional research. Furthermore, that researchers will look at these categories of medicines that have the possibility of correcting inflammatory and immune balance problems resulting from DIT rather than focusing solely on individual disease symptoms,” Rodney Dietert said.

He noted that until recently toxin-testing guidelines predicted only risk in adults, but that the Environmental Protection Agency has announced it will issue new guidelines to take into account the increased immune sensitivity of fetuses and young children.

Adapted from materials provided by Cornell University

Cornell University. “Prenatal Toxicity Linked To Immune Dysfunctions In Later Life.” ScienceDaily 3 May 2007. 25 April 2008 <http://www.sciencedaily.com­ /releases/2007/05/070502172217.htm>.

Radiation therapy can cause tissue and bone in the treated area to waste away. When tissue death occurs, ulcers may form in the soft tissues of the mouth, grow in size, and cause pain or loss of feeling. Infection becomes a risk. As bone tissue is lost, fractures can occur. Preventive care can lessen the severity of tissue and bone loss.

Treatment of tissue and bone loss may include the following:

• Eating a well-balanced diet.
• Wearing removable dentures or appliances as little as possible.
• Not smoking.
• Not drinking alcohol.
• Using topical antibiotics.
• Using painkillers.
• Undergoing surgery to remove dead bone or to reconstruct bones of the mouth and jaw.
• Receiving hyperbaric oxygen therapy, a method of delivering oxygen under pressure to the surface of a wound to help it heal.