Showing posts with label cancers. Show all posts
Showing posts with label cancers. Show all posts

Tuesday 18 February 2020

Vaccination Of Young People Against HPV Will Reduce The Level Of Cancer

Vaccination Of Young People Against HPV Will Reduce The Level Of Cancer.
Although the low-down on the US cancer facing is generally good, experts discharge a troubling upswing in a few uncommon cancers linked to the sexually transmitted hominoid papillomavirus (HPV). Since 2000, certain cancers caused by HPV - anal cancer, cancer of the vulva, and some types of throat cancer - have been increasing, according to a strange set forth issued by federal health agencies in collaboration with the American Cancer Society. Overall, the report, published online Jan 7, 2013 in the Journal of the National Cancer Institute, finds fewer Americans sinking from joint cancers such as colon, breast and prostate cancers than in years past.

And the HPV-linked cancers are still rare. But experts maintain more could be done to prevent them - including boosting vaccination rates mid young people. "We have a vaccine that's acceptable and effective, and it's being used too little," said Dr Mark Schiffman, a senior investigator at the US National Cancer Institute.

More than 40 strains of HPV can be passed through procreant activity, and some of them can also upgrade cancer. The best known is cervical cancer. HPV is also blamed for most cases of anal cancer, a bountiful share of vaginal, vulvar and penile cancers, and some cases of throat cancer.

The uncharted report found that between 2000 and 2009, rates of anal cancer inched up among ashen and black men and women, while vulvar cancer rose among white and black women. HPV-linked throat cancers increased among white adults, even as smoking-related throat cancer became less common.

The reasons are not clear, said Edgar Simard, a major epidemiologist at the American Cancer Society who worked on the study. "HPV is a sexually transmitted virus, so we can wager that changes in fleshly practices may be involved". For example, prior studies have linked the rise in HPV-associated viva voce cancers to a rise in the popularity of oral sex.

HPV can be transmitted via oral intercourse, and a reading published in 2011 in the Journal of Clinical Oncology found that the percentage of oral cancers that are linked to HPV jumped from about 16 percent in the mid-1980s to 72 percent by 2004. Not all HPV-linked cancers have increased, and the biggest shut-out is cervical cancer. That cancer is almost always caused by HPV, but rates have been falling in the United States for years, and the drift continued after 2000.

That's because doctors routinely stop and criticize pre-cancerous abnormalities in the cervix by doing Pap tests and, in more recent years, tests for HPV. In compare there are no routine screening tests for the HPV-related cancers now on the rise. Those cancers do linger rare.

Monday 6 January 2020

Daily Long-Term Use Of Low-Dose Aspirin Reduces The Risk Of Death From Various Cancers

Daily Long-Term Use Of Low-Dose Aspirin Reduces The Risk Of Death From Various Cancers.
Long-term use of a ordinary low-dose aspirin dramatically cuts the danger of fading from a wide array of cancers, a new investigation reveals. Specifically, a British inspect team unearthed evidence that a low-dose aspirin (75 milligrams) captivated daily for at least five years brings about a 10 percent to 60 percent tear in fatalities depending on the type of cancer. The finding stems from a fresh analysis of eight studies involving more than 25,500 patients, which had from the outset been conducted to examine the protective potential of a low-dose aspirin regimen on cardiovascular disease.

The au courant observations follow prior research conducted by the same library team, which reported in October that a long-term regimen of low-dose aspirin appears to shave the endanger of dying from colorectal cancer by a third. "These findings provide the first proof in mortals that aspirin reduces deaths due to several common cancers," the study team noted in a news release.

But the study's model author, Prof. Peter Rothwell from John Radcliffe Hospital and the University of Oxford, stressed that "these results do not undignified that all adults should immediately start taking aspirin. They do exhibit major new benefits that have not previously been factored into guideline recommendations," he added, noting that "previous guidelines have rightly cautioned that in tonic middle-aged people, the small risk of bleeding on aspirin partly offsets the promote from prevention of strokes and heart attacks".

And "But the reductions in deaths due to several banal cancers will now alter this balance for many people," Rothwell suggested. Rothwell and his colleagues published their findings Dec 7, 2010 in the online printing of The Lancet. The on involved in the current review had been conducted for an average period of four to eight years.

Thursday 12 December 2019

New Promise Against Certain Types Of Lung Cancer

New Promise Against Certain Types Of Lung Cancer.
An tentative cancer painkiller is proving effective in treating the lung cancers of some patients whose tumors communicate a certain genetic mutation, new studies show. Because the mutation can be produce in other forms of cancer - including a rare form of sarcoma (cancer of the soft tissue), youth neuroblastoma (brain tumor), as well as some lymphomas, breast and colon cancers - researchers assert they are hopeful the drug, crizotinib, will prove effective in treating those cancers as well. In one study, researchers identified 82 patients from in the midst 1500 patients with non-small-cell lung cancer, the most base type of lung malignancy, whose tumors had a mutation in the anaplastic lymphoma kinase (ALK) gene.

Crizotinib targets the ALK "driver kinase," or protein, blocking its occupation and preventing the tumor from growing, explained retreat co-author Dr Geoffrey Shapiro, director of the Early Drug Development Center and affiliated professor of medicine at Dana-Farber Cancer Institute and Harvard Medical School, Boston. "The cancer cubicle is actually addicted to the activity of the protein for its flowering and survival. It's totally dependent on it. The idea is that blocking that protein can put an end to the cancer cell".

In 46 patients taking crizotinib, the tumor shrunk by more than 30 percent during an usual of six months of taking the drug. In 27 patients, crizotinib halted lump of the tumor, while in one patient the tumor disappeared.

The drug also had few side effects. The most common was compassionate gastrointestinal symptoms. "These are very positive results in lung cancer patients who had received other treatments that didn't do or worked only briefly. The bottom line is that there was a 72 percent chance the tumor would contract or remain stable for at least six months".

The study is published in the Oct 28, 2010 version of the New England Journal of Medicine. In recent years, researchers have started to suppose of lung cancer less as a single disease and more as a group of diseases that rely on specified genetic mutations called "driver kinases," or proteins that enable the tumor cells to proliferate.

That has led some researchers to concentration on developing drugs that target those specific abnormalities. "Being able to repress those kinases and disrupt their signaling is evolving into a very successful approach".

Wednesday 20 November 2019

British Scientists Have Reported That Children Cured Of Childhood Cancer Have A High Risk Of Premature Death

British Scientists Have Reported That Children Cured Of Childhood Cancer Have A High Risk Of Premature Death.
Childhood cancer casts a extensive shadow. Those who persist the fresh cancer are at high risk of at death's door prematurely decades afterward from new cancers, heart disease and stroke likely caused by the cancer care itself, British researchers report. Although more children are surviving cancer, many have long-term risks of fading prematurely from other diseases. These excess deaths, the researchers say, may be kin to late complications of treatment, such as the long-term effects of radiation and chemotherapy.

Equally troubling is that many older survivors are not being monitored for these problems, the researchers added. Compared to the all-inclusive population, excess deaths may follow-up from new primary cancers and circulatory disease that surface up to 45 years after a boyhood cancer diagnosis, said lead researcher Raoul C Reulen of the Center for Childhood Cancer Survivor Studies at the University of Birmingham.

Reulen illustrious that while the risk of death from the effects of changed cancers and cancer treatments increases with age, many of the most vulnerable survivors are not monitored for these life-threatening salubrity problems. "In terms of absolute risk, older survivors are most at risk of dying of a flash primary cancer and circulatory disease, yet are less likely to be on active follow-up. This suggests that survivors should be able to access vigour care intervention programs even many years" after they pass the mark for five-year survival.

The detonation is published in the July 14 issue of the Journal of the American Medical Association. For the study, Reulen's tandem collected data on 17981 children who survived cancer. These children, born between 1940 and 1991, were all diagnosed with a malignancy before they were 15.

By the end of 2006, 3049 of these individuals had died. That was a reproach 11 times higher than would be seen in the non-specific population - something called the usual mortality rate. And while the rate dropped over time, it was still three-fold higher than expected after 45 years of follow-up, the researchers note.

People With Diabetes May Have An Increased Risk Of Cancer

People With Diabetes May Have An Increased Risk Of Cancer.
People with diabetes may have something else to be troubled about - an increased jeopardize of cancer, according to a green consensus report produced by experts recruited jointly by the American Cancer Society and the American Diabetes Association. Diabetes, mostly type 2 diabetes, has been linked to certain cancers, though experts aren't ineluctable if the disease itself leads to the increased risk or if shared risk factors, such as obesity, may be to blame. Other digging has suggested that some diabetes treatments, such as certain insulins, may also be associated with the circumstance of some cancers.

But the evidence isn't conclusive, and it's difficult to tease out whether the insulin is liable for the association or other risk factors associated with diabetes could be the root of the link. "There have been some epidemiological studies that suggest that individuals who are pot-bellied or who have high levels of insulin appear to have an increased prevalence of certain malignancies, but it's a complex edition because the association is not true for all cancers," explained Dr David Harlan, guide of the Diabetes Center of Excellence at the University of Massachusetts Memorial Medical Center in Worcester, and one of the authors of the consensus report. "So, there's some smoke to suggest an linkage - but no clear fire".

As for the viable insulin-and-cancer link, Harlan said that because a weak association was found, it's definitely an court that needs to be pursued further. But that doesn't mean that anyone should change the way they're managing their diabetes. "Our greatest interest to is that individuals with diabetes might choose not to treat their diabetes with insulin or a nice insulin out of concern for a malignancy.

The risk of diabetes complications is a far greater concern. It's get a kick out of when someone decides to drive across the country because they're afraid to fly. While there is a miniature risk of dying in a plane crash, statistically it's far riskier to drive". The consensus put out is published in the July/August issue of CA: A Cancer Journal for Clinicians.

Thursday 7 December 2017

Scientists Spot Genetic Traces of Individual Cancers

Scientists Spot Genetic Traces of Individual Cancers.
Researchers have found a disposition to analyze the reproduce of a cancer, and then use that trace to track the trajectory of that particular tumor in that particular person. "This adeptness will allow us to measure the amount of cancer in any clinical specimen as soon as the cancer is identified by biopsy," said scrutinize co-author Dr Luis Diaz, an assistant professor of oncology at Johns Hopkins University.

And "This can then be scanned for gene rearrangements, which will then be second-hand as a template to track that item-by-item cancer." Diaz is one of a group of researchers from the Ludwig Center for Cancer Genetics and Therapeutics and the Howard Hughes Medical Institute at Johns Hopkins Kimmel Cancer Center that information on the ascertaining in the Feb 24 issue of Science Translational Medicine. This latest finding brings scientists one movement closer to personalized cancer treatments, experts say.

But "These researchers have unflinching the entire genomic sequence of several breast and colon cancers with great precision," said Katrina L Kelner, the journal's editor. "They have been able to home small genomic rearrangements sui generis to that tumor and, by following them over time, have been able to follow the course of the disease." One of the biggest challenges in cancer healing is being able to see what the cancer is doing after surgery, chemo or radiation and, in so doing, help guide care decisions. "Some cancers can be monitored by CT scans or other imaging modalities, and a few have biomarkers you can follow in the blood but, to date, no uncircumscribed method of accurate surveillance exists," Diaz stated.

Almost all kind cancers, however, exhibit "rearrangement" of their chromosomes. "Rearrangements are the most dramatic form of genetic changes that can occur," investigation co-author Dr Victor Velculescu explained, likening these arrangements to the chapters of a enlist being out of order. This type of mistake is much easier to recognize than a mere typo on one page.

Wednesday 4 January 2017

Painkillers Tablets To Prevent Cancer

Painkillers Tablets To Prevent Cancer.
The remedy painkiller Celebrex might helper prevent non-melanoma skin cancers, a small study suggests. But one pro was quick to note that the drug, which is most commonly used to counter the pain of arthritis, has been linked in some studies to an enhancement in the risk for cardiovascular problems. So it isn't yet clear that Celebrex (celecoxib) is an ideal hand-picked to prevent cancers that could be treated by other means. "We have a lot of different treatments for non-melanoma skin cancers," notable Dr Doris Day, a dermatologist at Lenox Hill Hospital in New York City. "I would want more message regarding the mechanism of action of Celebrex, because of the other risks".

The report, funded by the US National Cancer Institute and Pfizer, the maker of Celebrex, is published in the Nov 29, 2010 online version and the Dec 15, 2010 phrasing issue of the Journal of the National Cancer Institute. Non-melanoma crust cancers are common, comprising "the most prevalent malignancies in the United States with an amount equivalent to all other cancers combined," according to study lead author Dr Craig A Elmets, a professor of dermatology at the University of Alabama at Birmingham. These tumors comprise basal stall and squamous cell carcinomas of the skin, which are typically linked to overexposure to UV rays from the Sunna or indoor tanning booths.

Currently, there are no US Food and Drug Administration (FDA)-approved agents for the fending of non-melanoma skin cancers, although sunscreens are widely recommended for this purpose. "However, even sunscreens are only modestly operative at preventing non-melanoma skin cancers. The elucidation that celecoxib can prevent these common malignancies heralds an entirely new approach for the prevention of these normal malignancies".

Thursday 26 May 2016

Rapid Diagnostics Of Cancer Increases The Number Of Cases Overdiagnosis

Rapid Diagnostics Of Cancer Increases The Number Of Cases Overdiagnosis.
A unexplored assess suggests that doctors need to address the problem of overdiagnosis in cancer disquiet - the detection and possible treatment of tumors that may never cause symptoms or lead to death. The magazine authors found that about 25 percent of breast cancers found through mammograms and about 60 percent of prostate cancers detected through prostate-specific antigen (PSA) tests may be examples of overdiagnosis.

About half of lung cancers detected through some screening tests may also note overdiagnosis. For several types of cancer - thyroid, prostate, breast, kidney and melanoma - the platoon of immature cases has gone up over the sometime 30 years, but the death rate has not, the authors noted.

Research suggests that more screening tests are creditable for the increased diagnosis rate. "Whereas early detection may well help some, it unmistakeably hurts others," Dr H Gilbert Welch and Dr William Black, of the VA Medical Center in White River Junction, Vt, and the Dartmouth-Hitchcock Medical Center, wrote in a telecast unfetter from the US National Cancer Institute.

So "Often the decision about whether or not to trace early cancer detection involves a delicate balance between benefits and harms - disparate individuals, even in the same situation, might reasonably make different choices". In a commentary, Dr Laura Esserman, of the University of California at San Francisco, and Dr Ian Thompson, of the University of Texas Health Science Center at San Antonio, wrote: "What we poverty now in the land of cancer is the coming together of physicians and scientists of all disciplines to bring down the burden of cancer death and cancer diagnosis.

Wednesday 8 January 2014

The Computed Tomography Can Lead To Cancer

The Computed Tomography Can Lead To Cancer.
Reducing the figure of needless and high-dose CT scans given to children could cut their lifetime risk of associated cancers by as much as 62 percent, according to a rejuvenated study June 2013. CT (computed tomography), which uses X-rays to offer doctors with cross-sectional images of patients' bodies, is frequently used in teenage children who have suffered injuries. Researchers concluded that the 4 million CT scans of the most commonly imaged organs conducted in children in the United States each year could distance to nearly 4900 cancers in the future.

They also arranged that reducing the highest 25 percent of radiation doses could prevent nearly 2100 (43 percent) of these following cancers, and that eliminating unnecessary CT scans could prevent about 3000 (62 percent) of these later cancers. The study was published online June 10 in the daily JAMA Pediatrics. "There are potential harms from CT, meaning that there is a cancer peril - albeit very small in individual children - so it's important to reduce this gamble in two ways," study lead author Diana Miglioretti, a professor of biostatistics in the unit of public health sciences at the UC Davis Health System, in California, said in a healthfulness system news release.

So "The first is to only do a CT when it's medically necessary, and use possibility imaging when possible. The second is to dose CT appropriately for children". The researchers examined observations on the use of CT in children at a number of health care systems in the United States between 1996 and 2010.