Tuesday, August 07, 2007
Complementary Medicine and Cancer
WebMd.com seems to really like acupuncture based on the idea that it can do very little (to no) harm and has some positive research. The complex topic of herbs with cancer they do not look on favorably. This is not surprising given the fact that there is so much misinformation and fear/caution about herbal treatments with cancer patients. When I work with a cancer patient I am communicating with the patients' doctor so as not to interfere with conventional treatment and keep the Dr. apprised of what may be helping the patients. There are however, many "non-interfering" periods of cancer treatment where complimentary can be of use.
Acupuncture can be used nearly all the time. Although there is a theoretical caution about using acupuncture when white blood cell counts are low due to possible risk of infection.
Herbs, supplements can be used for a cancer patient safely when prescribed properly in all the following situations
- Before and during intervals of conventional treatment
- When a patient is not receiving treatment
- During conventional treatment to relieve side effects. The research seems mostly weak describing ways to take supplements to improve chemotherapy treatment efficacy.
- pre surgery preparation, recovery from surgery
- Post treatment side effects
- prevention
Also called alternative medicine, is the complementary approach a new model for Western medicine?
A few years ago, if you asked your oncologist for a referral to a masseuse, she'd think you were joking. But things have changed. Nowadays, your oncologist might be prescribing the massage -- along with acupuncture, herbs and other therapies.
It's a sign of a new trend: complementary medicine (also called
"Patients love it," says Simone Zappa, RN, an administrator in the Integrative Medicine Department at Memorial Sloan-Kettering Cancer Center in New York. "And they love it because it works."
Complementary treatments help many people with cancer. Massage, acupuncture, and hypnosis are being used along with radiation, chemotherapy, and surgery. These complementary therapies aren't usually intended to treat the cancer itself. But they can ease side effects and improve quality of life. They may even reduce the amount of medicine you need for treatment.
What's more, some of these treatments have been shown to work in scientific studies. The gulf between evidence-based Western medicine and traditional therapies is not as wide as it once was. And many people with cancer are benefiting.
Understanding Complementary Medicine
Complementary medicine includes dozens of treatments that have not been generally used in Western medicine. They extend from nutritional changes, to biofeedback, to yoga.
Experts stress that complementary or integrative medicine is not the same as "alternative medicine." Complementary medicine for cancer is a complement -- not a replacement -- for traditional treatments like radiation, chemotherapy, and surgery. It's an important distinction, since only conventional therapies have been shown to fight cancer.
People with cancer seek out complementary medicine for many reasons. Zappa says that, at Sloan-Kettering, she most often sees people suffering from pain, nausea, depressiondepression, anxiety, and fatiguefatigue. Some are wary of the unusual approach at first. But most are convinced after they try it, says Zappa. "What's great about the integrative approach is that it gives back a feeling of control."
Complementary Medicine's New Converts
For hardened skeptics, phrases like "traditional healing techniques" and "alternative medicine" conjure up images of magic crystals and the smell of incense. But in fact, the people researching complementary medicine -- and sometimes even practicing it -- are likely to be wearing lab coats.
"The people doing this work are not crackpots," says Heather S. Shaw, MD, co-director of the Integrative Oncology Program at Duke University. "I'm an oncologist and I spend a lot of my time parked on a laboratory bench doing research."
Indeed, hospitals with complementary medicine divisions are spearheading research. Experts are using the same rigor in evaluating complementary therapies that they would in testing drugs or surgery. It's not enough to assume that a treatment works just because it's been used for thousands of years. Doctors want evidence.
After seeing the benefits of complementary medicine, many doubting oncologists have been convinced.
"My colleagues used to think I was nuts," Shaw says. "They teased me about prescribing so-called 'herbs and spices'." But now her fellow doctors are always asking her advice on new ways to help their patients.
The Integrative Approach: Is It Proven?
Of course, here's the big question: do we know if complementary medicine really works?
The answer: It depends on the specific treatment. Acupuncture and massage -- which not so long ago were considered pretty far-out -- have been shown to help. Many studies have shown that acupuncture eases chemotherapy nausea, while other studies suggest acupuncture and massage may reduce pain from cancercancer or its treatment.
"A lot of oncologists don't see acupuncture or massage as 'alternative medicine' anymore," says Shaw. "These therapies are so well established that they've become standard."
Other complementary techniques aren't as well researched. So when a treatment is unproven, the question is whether its potential benefits outweigh its risks. If it's risky, it isn't used. But if the risks are very, very low, doctors may be more open.
"If a treatment is safe but unproven, why not give it a try if the patient is interested?" says David S. Rosenthal, MD, medical director of the Center for Integrated Therapies at the Dana Farber Cancer Institute.
Things get trickier with herbal and botanical supplements. Despite their wide popularity, few have been shown to be either safe or effective against cancer. On the other hand, some have been shown to be both ineffective and unsafe. One example is laetrile, which contains a substance found in the pits of some fruits. The active ingredient seems to be cyanide, and it has resulted in symptoms of cyanide poisoning. Some common supplements -- like St. John's wort and high doses of vitamin C -- can interact with chemotherapy and radiation.
"You have to be very careful with botanical and herbal supplements," says Zappa. "They are real drugs and we just don't know a lot about them." She hopes future research will show benefits. But for now, she and other experts urge caution. Given the risks, your doctor must know about all of the herbs, botanicals, and supplements you use.
Will My Insurance Pay for Complementary Medicine?
By and large, insurance companies don't cover complementary care. Specifics vary with each insurer and from state to state. For instance, acupuncture is covered in some states but not others, says Rosenthal.
For now, most complementary medicine is provided on a fee-for-service basis. But advocates of
"A lot of us are doing research now that, we hope, will show the benefits of these therapies," says Rosenthal. "Once we have the evidence, we can make a case to the insurance companies."
Shaw agrees. "We're hoping to show that these treatments will actually save insurers money," she says. "They may reduce hospitalizations and drug costs."
Finding a Complementary Medicine Caregiver
A lot of people may offer "complementary medicine." But how do you know if they're reputable? It's hard to be sure.
You're lucky if you live near a teaching hospital with a complementary or integrative medicine center. Many offer complementary services right in the hospital. If you're not close to such a center, talk to your doctor. He or she may know of people practicing complementary medicine in your area.
You should also look for credentials. For instance, acupuncturists should either have an LAc or be a Doctor of Oriental Medicine, says Shaw. You can see if your state licenses acupuncturists and other providers. The National Center for Complementary and Alternative Medicine has tips for finding qualified caregivers.
Shaw has two rules of thumb when judging good complementary medicine providers. First, they will not make any claims to cure cancercancer. Second, they will not try to convince you to stop conventional therapy. If a practitioner does either, you should find someone else.
There's also the flip side. If you are interested in complementary therapies, it's important your oncologist be open to them. Not every doctor is. Some flat out demand that their patients stop using all complementary therapies, since they don't know enough about them, says Shaw.
"If you want complementary therapies and your oncologist is adamantly opposed to them, you might want to find someone else," says Shaw. "There are a lot of open-minded oncologists out there who will help you."
But Zappa predicts that opposition to integrative medicine will become more and more rare.
"People in medicine are scientists, and scientists rightly need proof that treatments work," she tells WebMD. "But now we finally have a lot of good research coming out. Once the research is out there, no one can ignore it. These treatments really do help people feel better."
WebMD Feature
Monday, July 23, 2007
Classic Chinese Herbal Formula Increases Hematopoietic Stem Cells In a Mouse Model
- Zhongguo Zhong Xi Yi Jie He Za Zhi. 2007 Jun;27(6):527-30.
[Experimental study on effect of xuefu zhuyu decoction on bone marrow hematopoietic stem cells of mice]
[Article in Chinese]Fujian College of Traditional Chinese Medicine, Fuzhou.
OBJECTIVE: To investigate the effect of Xuefu Zhuyu Decoction (XFZYD) on the number, phenotype, cell cycle and colony formation of bone marrow hematopoietic stem cells (HSC) in mice. METHODS: Kunming mice were randomly divided into 4 groups: the control group, the low- (3.25 g/kg), middle- (6.5 g/kg) and high-dose (13.0 g/kg) XFZYD groups. After they were medicated by gastrogavage respectively with saline or corresponding dose of XFZYD for 7 days, their bone marrow HSC were separated and counted. The phenotype Sca and cell cycle of HSC were detected by flow cytometer, and the colony formation was determined with semisolid methyl media culture. RESULTS: No obvious difference in the number of mononuclear cell, suspended cell and colony production was found among all the groups (P > 0.05); while the expression of CD34 and Sca-1 increased in the low-dose XFZYD group, but in the middle-dose XFZYD group increase only showed in Sca-1 expression. CONCLUSION: XFZYD plays a role of removing blood stasis and promoting regeneration through improving hematopoietic function by means of increasing the number and enhancing the function of premature HSC.
PMID: 17633366 [PubMed - in process]
Related Links
- Changes in integrin expression are associated with altered homing properties of Lin(-/lo)Thy1.1(lo)Sca-1(+)c-kit(+) hematopoietic stem cells following mobilization by cyclophosphamide/granulocyte colony-stimulating factor. [Exp Hematol. 2002]
- [Effects of xuefu zhuyu decoction on functions of vascular endothelium in patients with unstable angina pectoris] [Zhong Xi Yi Jie He Xue Bao. 2006]
- [Generation of CD34+/Sca-1+ cells from mouse embryonic stem cells with two-step differentiation in vitro] [Zhonghua Er Ke Za Zhi. 2004]
- [Effect of xuefu zhuyu decoction on function of platelet and endothelial cell] [Zhongguo Zhong Xi Yi Jie He Za Zhi. 1999]
- [The effect of matrix metalloproteinase-9 in granulocyte colony stimulation factor-induced stem cell mobilization] [Zhonghua Yi Xue Za Zhi. 2006]
Classic Chinese Herbal Formula increases Hematopoietic tem cells in a rat model
Gao D, Lin JM, Zheng LP. [Experimental study on effect of xue fu zhu yu
decoction on bone marrow hematopoietic stem cells of mice] [Article in
Chinese] Zhongguo Zhong Xi Yi Jie He Za Zhi. 2007 Jun;27(6):527-
Fujian College of Traditional Chinese Medicine, Fuzhou. OBJECTIVE: To
investigate the effect of Xuefu Zhuyu Decoction (XFZYD) on the number,
phenotype, cell cycle and colony formation of bone marrow hematopoietic
stem cells (HSC) in mice. METHODS: Kunming mice were randomly divided
into 4 groups: the control group, the low- (3.25 g/kg), middle- (6.5 g/kg) and
high-dose (13.0 g/kg) XFZYD groups. After they were medicated by
gastrogavage respectively with saline or corresponding dose of XFZYD for 7
days, their bone marrow HSC were separated and counted. The phenotype
Sca and cell cycle of HSC were detected by flow cytometer, and the colony
formation was determined with semisolid methyl media culture. RESULTS:
No obvious difference in the number of mononuclear cell, suspended cell
and colony production was found among all the groups (P > 0.05); while the
expression of CD34 and Sca-1 increased in the low-dose XFZYD group, but
in the middle-dose XFZYD group increase only showed in Sca-1 expression.
CONCLUSION: XFZYD plays a role of removing blood stasis and promoting
regeneration through improving hematopoietic function by means of
increasing the number and enhancing the function of premature HSC. PMID:
17633366 [PubMed - in process]
Sunday, July 22, 2007
Herbal Aids for Cancer Review of 7 Herbs That Act As Biological Response Modifiers
Also TCM formulas take into account the dynamic balance of the individual. So even if there are strong and possibly toxic anti-cancer herbs there will also be herbs to support assimilation, combat the toxicity and regulate the dynamic balance of the body. The proof of this strategy being effective for a cancer patient can be measured in many ways depending on the situation. The main ways I think about it are quality of life, increase in longevity, less side effects from conventional treatment and better response to conventional treatment. This really is my message about treating cancer patients.
Alex
Herbal Aids for Cancer Review of 7 Herbs That Act As Biological Response Modifiers
Cancer treatments are a paradox, on one hand delivering powerful toxicity to a tumor, but on the other spreading toxicity to the rest of the body. The side effects of such treatments may cause death even before the cancer does. Biological response modifiers (BRMs) are compounds that have a unique effect on physiology and can reduce the side effects of cancer treatments, while at the same time increasing their effectiveness.
A BRM repairs damage to the body rather than targeting a pathogenic agent such as cancer. It typically acts by stimulating the immune system to restore optimal function. Many diseases and infections as well as AIDS result from immune surveillance failure. Because chemotherapy compromises the immune system, people receiving cancer treatments run an especially high risk of contracting and dying of infections.
Cytokines, hormones naturally produced in the body, promote immunity and are often used clinically as BRMs—to treat disease, fight viral infections and augment chemotherapy. Three pharmaceutical cytokines currently in use include colony-stimulating factors that reduce the chance of infection and thus the need for antibiotics by stimulating bone marrow to produce more white blood cells; interferons that stimulate macrophages to ingest foreign particles and help the body produce antiviral chemicals; and interleukins that stimulate growth and activation of white blood cells. The therapeutic use of these cytokines, called immunotherapy, as a cancer treatment both with and without standard anti-cancer drugs is marginally successful. Side effects such as depression, nausea and chest pain, however, can limit the effectiveness of some pharmaceutical cytokines.
Many herbs have long been known to affect the immune system, but only recently have scientists considered them as possible BRMs and adjunct cancer therapies. Such herbs often prompt the body's cells to secrete cytokines, which then enhance the immune response. The most promising of these herbs include black cumin, mistletoe, ginseng, astragalus, green tea, echinacea and garlic.
Saturday, July 21, 2007
Complimentary cancer strategies an idea
When developing complimentary strategies to treat cancers one way is to understand the action of the drug used to treat it and then look at research into nutrients/supplements and herbs that work on the same cell signalling pathways. An example of this approach is the drug Lapatinib. It works upon the cell signaling proteins that are over-expressed in certain kinds of cancer cells. To be exact, according to Wikipedia, Lapatinib is an epidermal growth factor receptor (EGFR) and HER2/neu (ErbB-2) dual tyrosine kinase inhibitor.
Lapatinib (INN) or lapatinib ditosylate (USAN), also known as GW572016, is an anti-cancer drug developed by GlaxoSmithKline (GSK) as a treatment for solid tumours such as breast and lung cancer. It was approved by the FDA on March 13, 2007, for use in patients with advanced metastatic breast cancer in conjunction with the chemotherapy drug Capecitabine (Xeloda TM). It is marketed by GSK in the U.S. as Tykerb and in Europe as Tycerb. Lapatinib is a once-daily oral drug indicated for women who have received prior treatment with the intravenous drug Trastuzumab (Herceptin TM) and cancer drugs called taxanes and anthracyclines. [1]
In patients with HER2+ metastatic breast cancer that has progressed following treatment with regimens that included an anthracycline, a taxane, and trastuzumab; randomized clinical trial has demonstrated that the addition of lapatinib to capecitabine delayed the time of further cancer growth compared to capecitabine alone.What if there are natural products that could have similar action?
Here are some links to herbs that work on the same and additional cell signalling pathways to Lapatinib:- Adv Exp Med Biol. 2007;595:1-75.
Curcumin: the Indian solid gold.
Curcumin exhibits activities similar to recently discovered tumor necrosis factor blockers (e.g., HUMIRA, REMICADE, and ENBREL), a vascular endothelial cell growth factor blocker (e.g., AVASTIN), human epidermal growth factor receptor blockers (e.g., ERBITUX, ERLOTINIB, and GEFTINIB), and a HER2 blocker (e.g., HERCEPTIN). Considering the recent scientific bandwagon that multitargeted therapy is better than monotargeted therapy for most diseases, curcumin can be considered an ideal "Spice for Life".
Curr Oncol. 2006 Jun;13(3):99-107.![]()
Natural health products that inhibit angiogenesis: a potential source for investigational new agents to treat cancer-Part 2.
Juravinski Cancer Centre and McMaster University (Department of Medicine), Hamilton, Ontario.
The herbalist has access to hundreds of years of observational data on the anticancer activity of many herbs. Laboratory studies are expanding the clinical knowledge that is already documented in traditional texts. The herbs that are traditionally used for anti-cancer treatment and that are anti-angiogenic through multiple interdependent processes (including effects on gene expression, signal processing, and enzyme activities) include Artemisia annua (Chinese wormwood), Viscum album (European mistletoe), Curcuma longa (curcumin), Scutellaria baicalensis (Chinese skullcap), resveratrol and proanthocyanidin (grape seed extract), Magnolia officinalis (Chinese magnolia tree), Camellia sinensis (green tea), Ginkgo biloba, quercetin, Poria cocos, Zingiber officinalis (ginger), Panax ginseng, Rabdosia rubescens hora (Rabdosia), and Chinese destagnation herbs. Natural health products target molecular pathways other than angiogenesis, including epidermal growth factor receptor, the HER2/neu gene, the cyclo-oxygenase-2 enzyme, the nuclear factor kappa-B transcription factor, the protein kinases, the Bcl-2 protein, and coagulation pathways. Quality assurance of appropriate extracts is essential prior to embarking upon clinical trials. More data are required on dose-response, appropriate combinations, and potential toxicities. Given the multiple effects of these agents, their future use for cancer therapy probably lies in synergistic combinations. During active cancer therapy they should generally be evaluated in combination with chemotherapy and radiation. In this role, they act as modifiers of biologic response or as adaptogens, potentially enhancing the efficacy of the conventional therapies or reducing toxicity. Their effectiveness may be increased when multiple agents are used in optimal combinations. New designs for trials to demonstrate activity in human subjects are required. Although controlled trials may be preferable, smaller studies with appropriate endpoints and surrogate markers for anti-angiogenic response could help to prioritize agents for larger, resource-intensive phase iii trials.
Sunday, July 15, 2007
TCM helps Lung Cancer Patients in conjunction with Chemo.
| Ai Zheng. 2005 Oct;24(10):1252-6. | Related Articles, Links |
[Prognostic analysis of stage III-IV non-small cell lung cancer patients treated by traditional chinese medicine]
Zhou DH, Lin LZ, Zhou YQ, Luo RC, Liu KF, Jia YJ, Chen JY, Niu XW, Su BR, Lu J, Wang ST.
Cancer Center, The First Affiliated Hospital, Guangzhou University of Traditional Chinese Medicine, Guangzhou, Guangdong, P. R. China. zdh@oncology.org.cn
BACKGROUND & OBJECTIVE: Chemotherapy is a treatment for stage III-IV non-small cell lung cancer (NSCLC), but the efficacy is not ideal. Traditional Chinese medicine (TCM) has certain effect on NSCLC. This study was to investigate various factors that affect the prognosis of advanced NSCLC, and evaluate the role of TCM in enlonging survival time of patients with stage III-IV NSCLC. METHODS: The NSCLC patients who meet the inclusive criteria were randomized into TCM group, combination (TCM plus NP regimen) group, and chemotherapy group, and received relevant treatments. The median survival time (MST) was calculated by Kaplan-Meier method. The prognosis of the patients was analyzed by COX regression method. RESULTS: A total of 294 stage III-IV NSCLC patients were enrolled, of which 99 were in TCM group, 103 in combination group, 92 in chemotherapy group. The MST were 292 days in TCM group, 355 days in combination group, and 236 days in chemotherapy group; the cumulative survival rates were 45.38%, 48.86%, and 42.17%, respectively (P>0.05). Cox regression analysis indicated that therapy, gender, disease course, erythrocyte sedimentation, KPS score, tumor size, and patient's weight were independent prognostic factors of stage III-IV NSCLC. CONCLUSION: Compare with chemotherapy alone, TCM combined with chemotherapy may prolong the survival time of stage III-IV NSCLC patients.
Publication Types:
Friday, July 06, 2007
Chinese medicinal herbs inhibit growth of murine renal cell carcinoma.
- Cancer Biother. 1994 Summer;9(2):153-61.
Department of Microbiology, School of Medicine, Loma Linda University, California 92350.
Monday, June 04, 2007
The Benefits of Juicing With Recipes
--Hippocrates (460-377 B.C.)
At HPS Health, there are lists of recipes for juices (combinations of raw fruits and vegetables with some fresh herbs) to address specific ailments such as headache, anemia, fatigue, and gastric ulcers. Other recipe sites include ones promoting delicious taste (this one has a V8 recipe) and those that have, well, interesting combos.
And, for the skeptics, there's a site that gives recipes as well as advice on choosing a juicer. The site? The Stanford Cancer Center, part of the Stanford University Medical System.
According to Stanford, "The best selection of juices comes in nature’s own containers: fresh fruits & vegetables. Fresh juice is loaded with cancer-fighting phytochemicals and vitamins, in a state easily absorbed by the body."
Special thanks to Rebecca at Everyday simplicity for a wonderful post.