Showing posts with label cancer. Show all posts
Showing posts with label cancer. Show all posts

Monday, April 26, 2010

When you’re diagnosed with a rare cancer

With few medical options, patients take their lives into their own hands

In New York City, indoor cycling is a contact sport. A few minutes before Spinning class at a midtown gym, most women are already on bikes and pedaling hard to warm up; those who didn’t sign up in advance jostle anxiously at the door, hoping for a no-show.

Amid this sea of black-clad intensity, Jennifer Goodman Linn stands out like a burst of sunlight. She has wrapped her hair with an orange bandanna emblazoned with the words Cycle for Survival and sports a bright lemon-yellow jersey. She breezes past the jockeying around her, stopping to give the instructor a hug, then smiles quietly as she settles on a bike and sets the resistance. Arms poised, she’s calm and happy as the first strains of Kanye West’s “Heartless” pulse, a woman exactly where she wants to be.
That she is here at all is some kind of a miracle. Five years ago, at age 33, the marketing executive learned she had soft tissue sarcoma, a type of cancer that attacks body tissues such as nerves and muscles and strikes only 10,000 Americans each year (compared with 200,000 breast cancer diagnoses). She has slogged through three heartbreaking recurrences, three courses of chemotherapy to shrink her tumors and four grueling surgeries to remove them. Cycling has been the one constant: She begged her doctors to set up a stationary bike in her hospital room, and when she returned to class after her first remission, bald and weakened, her instructor and fellow riders welcomed her with applause. Moved by how her sport had helped her heal, in 2007 she launched Cycle for Survival, an event in which teams of riders hit the gym and pedal for hours to raise money for rare cancers. “I realized that I could either admit defeat or use the cancer to do a good thing,” she says. “The choice seemed clear.” 
Linn’s medical journey, on the other hand, has been anything but. Her first symptoms were odd but not particularly alarming: night sweats, a chronic cough and a sudden, sharp pang in her abdomen one afternoon while she was playing tennis with her husband, Dave. “I was losing weight,” she recalls, “but my pants were tight.” Was she pregnant? No, although the newlyweds were trying. And when Linn began taking her temperature to see if she was ovulating, she found she had a fever. With her worry building after several weeks of symptoms, Linn saw her doctor, who ordered blood tests, followed by a series of scans.
When the radiologist saw the results, he bluntly informed her, “You have a big tumor in your abdomen.” Referred to a surgeon who would remove the mass — which was the size of a cantaloupe — Linn learned it could be sarcoma. Yet, like many people, she had never heard of the word sarcoma and didn’t grasp what it meant. “I know it sounds strange, but because the surgeon never used the word cancer, and because I was so young, fit and healthy, I assumed it wasn’t even a possibility. My main concern was that they take [the growth] out without doing a hysterectomy, so I could still have a baby someday,” she says. “I was in deep denial.”
Watching and waitingEven as she was wheeled into surgery, she still hoped the mass would turn out to be a uterine fibroid. Only in recovery did Linn learn that it was indeed cancer; the medical team had removed it as best they could, along with part of her colon, appendix and abdominal tissue. When she and Dave arrived for her first oncologist appointment a few weeks later, reality finally hit full-force. It was, Linn says, “the first time I had an out-of-body-scared moment.” That doctor told Linn and her husband that her odds of surviving five years were 50 percent — no better than a coin flip. Worse, there was no medical protocol for how to proceed.
“When Dave and I found out I had a rare cancer, we immediately wanted as much information as possible,” Linn says. But facts were in short supply. As with all orphan cancers, the term used for any type that affects fewer than 200,000 Americans at one time, research was limited. The “big four” cancers — breast, lung, colon and prostate, which together account for about half of all new cancer cases in the United States — receive the lion’s share of funding and attention. “With common cancers, there is more data, along with collective experience, to develop guidelines for treating these diseases,” says David G. Pfister, M.D., chief of head and neck oncology at Memorial Sloan-Kettering Cancer Center in New York City. “The more you see something, the more experienced you get at dealing with it. We know if one drug works better than another and are able to understand the course of the disease.” With orphan cancers, most physicians and patients have no blueprint. “In terms of treatment, there aren’t many patients going through what I am,” Linn says. “And with such a small pool, there isn’t much incentive for drug companies to invest in research.”
Getting a cancer diagnosis is an isolating experience under the best of circumstances. But minimal medical options and few support groups mean people with orphan cancers are apt to feel especially singled out. “It’s lonely and frustrating,” admits Linn, who has gone through a series of different chemotherapies at Memorial Sloan-Kettering. Recently, her oncologist told her she is free of measurable disease. Remission is normally cause for celebration, but Linn has been given good news three times before, only to see the cancer return each time. When she asked what came next, the answer was less than reassuring. “I don’t know,” the doctor told her. “There’s a 50-50 chance that it’s coming back. We’ll keep scanning you every 10 weeks, and if something turns up, we’ll deal with it.”
It’s the uncertainty patients with orphan cancers find most agonizing — “Watching and waiting is the hardest part,” Linn says — especially coming on the heels of baffling symptoms and catch-as-catch-can treatments. Yet despite the challenges, people with orphan cancers are working urgently — swapping advice online, pushing for more clinical trials and raising awareness through efforts such as Cycle for Survival, which is now run by Memorial Sloan-Kettering. “I needed an outlet, but I also created the organization selfishly,” Linn says. “If I leave it up to someone else to develop new therapies, it might never happen.”
Awareness brings money, which in turn fuels research, and last year’s federal stimulus package spurred new grants for the study of orphan cancers. “This is the era of orphan diseases, in large part because of the patients,” says Alexandria T. Phan, M.D., associate professor in the department of gastrointestinal medical oncology at the University of Texas M.D. Anderson Cancer Center in Houston. “Their voices are even more important than doctors’, because it’s the patients who get the rest of the world excited.” In the process, they are changing the destiny of almost anyone with cancer, uncommon or not, creating new treatments and forging a path to survival where none existed before.

 

Thursday, January 7, 2010

Women 'too busy' to go for cancer screenings

Practical reasons could be more significant than emotional ones in explaining why many women miss cervical cancer screenings, a study suggests.

It had been thought emotional factors - such as embarrassment or fear - were largely to blame for low take-up rates.                           
But a Journal of Medical Screening study found women who said they rarely or never voted in elections were more likely to be overdue for screening.
And researchers say the women could simply be too busy for either activity.
The team, from the charity Cancer Research UK, found the association was strongest in women aged 26-44.
Cervical screening saves about 4,500 lives every year.
Researcher Dr Jo Waller said: "With uptake of cervical screening in England still much lower than we would like, these findings suggest that overcoming practical barriers may be the most important factor in maximising cervical screening uptake.
"These results are encouraging. In the past, it was thought that emotional factors such as concern about embarrassment and pain were the best predictors. Minimising practical difficulties is a more achievable goal.
"In terms of the correlation between voting and screening attendance, it may be that as both activities require a degree of organisation, women who do not manage to vote because of busy lives may also be unlikely to attend screening."
Practical
The researchers suggest that measures to minimize practical difficulties, such as evening and weekend clinics, could have a significant effect.
A separate US study, published in the same journal, suggests the more children living in a household, the lower the cancer screening attendance in adults from that household.
The researchers suggest that parents could have less time to attend screenings and prioritise the needs of their children above their own.
Professor Julietta Patnick, director of the NHS Cancer Screening programmes, said: "We have been concerned for some time about falling acceptance rates for screening, particularly amongst certain groups in society, such as women under 35 and the over 55s.
"This study helps us understand what the issue might be and will be useful for us in addressing the issues."

Tuesday, January 5, 2010

Giving up smoking 'raises diabetes risk'

Giving up smoking sharply increases the risk of developing type-two diabetes, a US study suggests.

Researchers found quitters had a 70% increased risk of developing type-two diabetes in the first six years without cigarettes compared with non-smokers.
This is because they tend to put on weight.
However, the Annals of Internal Medicine study stressed that this should not be used as an excuse to carry on smoking.
The Johns Hopkins team also stress that smoking is a well known risk factor for type-two diabetes - as well as many other health problems, such as heart disease, stroke and cancer.
Researcher Dr Jessica Yeh said: "If you smoke, give it up. That's the right thing to do.
"But people have to also watch their weight."
The study, based on 10,892 middle aged adults who were followed for up to 17 years, found the risk of developing type-two diabetes was highest in the first three years after giving up smoking.
Around 1.8% of people giving up smoking developed type 2 diabetes each year during that period.
If quitters avoided developing the condition for 10 years, then their long-term risk returned to normal.
People who made no effort to give up smoking had a constant 30% increased risk of type-two diabetes compared with non-smokers.
Blood sugar
Type-two diabetes means the body either fails to make enough of the hormone insulin, or cannot make proper use of it, leading to uncontrolled blood sugar levels.
Untreated this can cause serious disease, and complications such as blindness, kidney failure and nerve damage.
One of the major risk factors for the condition is being overweight, and the rise in obesity across the developed world has been blamed for a big increase in type-two diabetes.
The researchers found those who smoked the most and those who gained the most weight had the highest likelihood for developing diabetes after they quit.
On average, during the first three years of the study, quitters gained about 8.4lb (3.8kg).
The researchers said doctors should keep in mind the importance of weight control when counselling people about giving up smoking.
Quitters tend to put on weight because smoking acts to suppress appetite.
The use of nicotine replacement therapy has been shown to blunt the weight gain associated with giving up smoking.
Martin Dockrell, of the anti-smoking charity Ash, said: "The researchers are clear that smokers should quit but - especially if you are a heavy smoker or are already overweight - you might want to gently increase your exercise when you quit.
"If you are a smoker who is also overweight you should talk to your doctor about how to get the best from quitting.
"A little more exercise could help improve your sense of well being, reduce weight gain and undo some of the harm done by smoking leading to a healthier, happier you."
Natasha Marsland, of the charity Diabetes UK, said: "On no account should people use the theoretical results of this study as an excuse not to give up smoking.
"The health benefits of giving up smoking far outweigh the risk of developing type-two diabetes from modest, short-term weight gain."

Friday, January 1, 2010

Tasmanian devil facial cancer origins 'identified'


Researchers believe they have identified the source of fatal tumours that threaten to wipe out the wild population of Tasmanian devils.
Writing in Science, an international team of scientists suggest cells that protect nerves are the likely origin of devil facial tumour disease (DFTD).
The disease is a transmissible cancer that is spread by physical contact, and quickly kills the animals.
DFTD has caused the devil population to collapse by 60% in the past decade.
"To look more closely at the tumours' origin, we sequenced the genes that are expressed in this devil cancer and compared them with other genes that are expressed in other devil tissues," explained lead author Elizabeth Murchison, from the Australian National University in Canberra.
She told the Science podcast the team's findings delivered surprising results.
"We found that the tumours expressed genes that were normally only expressed by Schwann cells, which are cells that are found in the peripheral nervous system that protect nerves."
'Genetically distinct'
The researchers sampled 25 different tumours from all over Tasmania, the only place on the planet where the world's largest carnivorous marsupials are found.
DEVILS IN DETAIL
Tasmanian devil (Image: Anaspides Photography/Iain D Williams)
Scientific name: Sarcophilus harrisii
Devils were given their common name by early settlers, who were haunted by "demonic growls"
Largest living carnivorous marsupial
Now only found in Tasmania
Can live up to five years in wild
Weight: male 10-12kg; female 6-8kg
They favour habitats where they can shelter by day and scavenge by night
They found that the growths were genetically distinct from their hosts, but were identical to one another.
Dr Murchison, who is also a researcher at Cold Spring Harbor Laboratory, US, said the teams findings had a number of positive outcomes: "Most importantly, this has led to the development of a diagnostic test for the disease.
"Devils are susceptible to a number of different types of cancer. Just like humans, they can get breast cancer, leukaemia, etc - especially in their old age.
"Sometimes it can be difficult to tell the difference between these types of cancer and the transmissible disease.
"Now that we know that these very specific Schwann genes are expressed in the cancer, we can use these genes as diagnostic markers."
DFTD was first described in the mid-1990s, when devils with large facial tumours were photographed in north-eastern Tasmania.
By the end of 2008, the disease - which kills infected animals within nine weeks - had been confirmed at 64 locations, covering more than 60% of the Australian island state's mainland.
Experts warn that without intervention, the disease could wipe out the wild population of the world's largest carnivorous marsupial within decades.
Dr Murchison hoped identifying the catalogue of genes associated with DFTD would lead to the development of vaccines, or possibly therapies.
Tasmanian devil with DFTD (Image: Save the Tasmanian Devil Program)
The disease usually kills infected devils within nine weeks
"As yet, unfortunately, there is nothing we can do to help the devils that have the disease," she said.
"This devil facial cancer is very unusual as it is an infection cancer; it is a little bit like an organ transplant," she said.
"In an organ transplant, you have an organ that is transplanted into an unrelated individual. In the case of the devil cancer, you have a cancer that is transplanted into another unrelated devil through biting.
"One of the big questions about this cancer is why it is not being rejected or being recognised as a foreign graft.
"If we could understand that... we could perhaps use this data to develop a vaccine that could help the devils' immune system reject the cancer before it takes hold."