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Wednesday, September 6, 2006

The American Academy of Pediatrics (AAP), in the September 2006 issue of its journal Pediatrics, supports the use of dairy by lactose intolerant children.

Dr. Melvin B. Heyman, author of the article, says that just because a child is lactose intolerant, does not mean that they should avoid dairy altogether. Many lactose intolerant people can consume small amounts of dairy.

Heyman says that dairy consumption is important, especially for children, because of its high calcium content. The calcium is, in turn, important for stengthening growing bones. “If dairy products are eliminated,” the article says, “other dietary sources of calcium or calcium supplements need to be provided.”

Lactose intolerance is a condition, present in the majority of human population above the age of infancy, due to which the body cannot tolerate lactose, a sugar present in milk and other dairy products. Lactose intolerance causes a range of unpleasant abdominal symptoms, including stomach cramps, bloating, flatulence and diarrhea.

As lactose intolerance is inherent, its prevalence varies by ethnic group. For example, while only 12% of American Caucasians have it, its prevalence is 75% among African Americans, 93% among Chinese, 60%-80% among Ashkenazi Jews,and 100% among American Indians. Many people do not realize that they have this condition simply because they have eaten dairy all their lives and view the symptoms of lactose intolerance as “normal”.

Physicians Committee for Responsible Medicine (PCRM) has long stated that the risks of consuming dairy far outweigh the benefits. According to PRCM’s fact sheet, called “Parents’ Guide to Building Better Bones”, there are many healthy ways of getting enough calcium and promoting bone health. Many foods contain calcium, not just dairy. Also, it is important to consider the amount of calcium absorbed, not just the amount of calcium present in a food. For example, more than three times as much calcium is absorbed from one serving of Total Plus cereal as from one serving of 2% milk.

PCRM promotes a strictly vegetarian diet. Despite its name, it claims only 5 percent of its members as physicians. PCRM has also been accused of having links with animal rights “extremists”, in particular Jerry Vlasak, a former PCRM spokesman who called for the murder of scientists who use animals in research.

The report in News-Medical.Net says that Ann Marie Krautheim, with the National Dairy Council, a dairy lobbying group, says

she hopes the report will educate parents on how to continue to include dairy in the diets of children sensitive to lactose and also help improve their nutrient intake. Krautheim says calcium-fortified beverages and other foods which seek to provide an alternative source of calcium, do not provide an equivalent nutrient package to dairy foods such as milk, cheese and yogurt.

This last statement, however, that dairy products are superior to calcium-fortified foods, is not supported by the article in Pediatrics.

Tuesday, March 18, 2008

Cheek numbing, eye watering winds whip across the plains of the Laramie Basin, Wyoming. The ground is yellow brown with patches of recalcitrant snow. Sheep Mountain is losing its winter coat. All normal affairs for March. The March edition of the Wyoming Basin Outlook Report also reports, based on February accumulations, that Snow Water Equivalent is at 99% of average.

The SWE is a measure of the snow pack that feeds the streams, rivers and reservoirs that Wyoming, Nebraska and other states depend upon for water. Current averages are compared to the average SWE for 1971-2000. In recent years, snow pack in this region has been anything but normal.

The Outlook Reports are issued January to June. Since March 2000, only five of 46 months have been above normal. While many of the winter months have been near normal, June’s snow pack is far below average. Even in 2006, the wettest year of the last eight years, June snow pack was only 37% of the average.

In an e-mail interview with Wikinews, Lee Hackleman, Water Supply Specialist, said

In a phone interview with Wikinews, Myra Wilensky of the National Wildlife Federation in nearby Colorado, also commented on changing snow patterns.

This is part of a general increase in temperature in the region. An Intergovernmental Panel on Climate Change cited by the National Wildlife Federation estimates that the temperature will rise almost 7 degrees (F) by 2100.

The NWF’s main concern is the fate of the wildlife in the region, particularly how the impact of pine bark beetles. Warmer winters have led to mass infestations in Western lodge pole pine forests and The New York Times reports that they are now moving on to white bark pines in Yellowstone particularly impacting grizzly bears there. In turn, the grizzlies are shifting to feeding on Canadian thistle, an invasive species that might be choking out native plants.

Changing weather patterns have also affected large migratory animals.

Water for people has also become a major issue in the region.

Kansas has long fought Wyoming over water rights issues. And Montana is currently suing Wyoming, claiming that the Yellowstone River Compact signed in 1950 gives rights to both surface and ground water, while Wyoming disagrees. On February 18, the Supreme Court agreed to hear the lawsuit.

Authorities do not see this fight over increasingly limited water resources going away anytime soon.

Tuesday, February 23, 2010

Toyota has been accused by a U.S. House of Representatives committee with misleading the public and investigators over its recent recalls.

The accusations, in a statement from the House Energy and Commerce Committee, claim that Toyota both relied on a flawed study in its assessment of the issue of sticking accelerator pedals at the heart of the recalls, and then made misleading statements about its response. According to the authors of the letter, Henry Waxman and Bart Stupak, Toyota dismissed, rather than investigated, the idea that the cars’ computers were at fault. In a statement, James Lentz, the president of Toyota’s American division, claimed that hardware issues were to blame, and that dealers were repairing the faulty part. Toyota also released a study commissioned from the research firm Exponent that said electronic systems were not to blame.

According to the House committee, however, the study involved only six vehicles, none of which had problems with their electrical systems, and was insufficient to produce an accurate result. “Our preliminary assessment is that Toyota resisted the possibility that electronic defects could cause safety concerns, relied on a flawed engineering report and made misleading public statements concerning the adequacy of recent recalls to address the risk of sudden unintended acceleration.”

The company is under a criminal investigation, and has received two subpoenas for documents from two House committees relating to the recalls, although whether they are directly related to the letter is unclear. The documents are related to accelerator issues in several models, as well as brake problems with the Prius hybrid car, and were served earlier in in February by a federal grand jury and the Securities and Exchange Commission. Toyota has released upwards of 75,000 pages of documents under the requests.

In a separate, though related, development, it has emerged that Toyota last year negotiated a limited recall for two models, the Toyota Camry and Lexus ES, that were affected by the accelerator recalls, saving the company an estimated $100 million. A confidential internal presentation in July 2009 made the claim, and a month later, a Lexus ES, one of the models under the limited recall crashed in California, killing four people. The claims apparently referenced a September, 2007 recall of floor mats that could trap gas pedals, the same problem that triggered a full recall of numerous Toyota cars to fix the same problem. In the same presentation, the company claimed to have avoided recalls of another model related to rust, as well as delaying new federal safety regulations.

Sunday, May 16, 2010

An attempt to cap the massive oil spill in the Gulf of Mexico has hit yet another obstacle, reported officials from British Petroleum (BP).

Friday night’s attempt to install a 6-inch (15.2cm) tube into the leaking drill pipe was only the latest in a series of efforts by BP to stop or slow down the spill. Previously, the oil company had tried to enclose the pipe with a large container dome, and then lowered a smaller “top hat” container dome. The siphon tube method is designed to reduce the amount of oil flowing into the ocean, but is not a permanent solution to stopping the leak altogether. It will draw the oil from the broken pipe to a tanker at the surface, said BP.

The tube was to be inserted into the broken pipe by robotic submarines, but the attempt on Friday to do so was unsuccessful, causing it to be taken back up for changes. The problem was a metal frame on the tube, which had changed position and this prevented the tube sent down from the drill ship Discover Enterprise from connecting. The tube had not been inserted into the leaking drill pipe before it was brought back up.

BP said that it would try again Saturday night (local time) to slow the leak using a reconfigured tube. If this attempt is unsuccessful, they will use the smaller dome to cap the leak, and may also try to plug the leak by covering it with trash, mud, or concrete. The company is already in the process of drilling relief wells to completely stop the leak, but this is expected to take several more months. The amount of oil currently leaking from the pipe is disputed, and BP said it has spent several hundred million US dollars in response to the oil spill.

BP was also given permission yesterday by the US Coast Guard and the Environmental Protection Agency to use chemical oil dispersants to combat the spill.

Thursday, September 27, 2007

At least 200 monks have been arrested in Myanmar during night-time raids on monasteries not long before sunrise. Government forces began to crack down on protesters after several days of peaceful demonstrations, but despite the violent treatment from military personnel, the monks returned to the streets in the morning.

100 monks were taken by security forces when they raided a monastery at Ngwe Kyaryan. “Only two or three sick monks were left behind”, a witness near the monastery said. Some reports state that shots have been fired at demonstrators, with one “collapsing”, but it’s not known if the individual was shot.

“There are fire trucks, water cannons positioned in a number of places – there are about three of them outside city hall. There are a number of prison vans also to be seen in certain places”, said Mark Canning, the British ambassador in Rangoon.

The United States and European Union have said that they are deeply troubled by events, issuing a statement calling on the United Nations Security Council to consider sanctions, but China and Russia do not believe sanctions will “be helpful” and immediately dismissed the call, calling the situation a matter for the “internal government” of Myanmar.

“France will not accept the gagging of Burma’s opposition”, said Nicolas Sarkozy, the French President, who also said that “[the Security Council] expressed their concern vis-a-vis the situation, and have urged restraint, especially from the government of Myanmar.”

Thursday, December 18, 2008

A team of eight transplant surgeons in Cleveland Clinic in Ohio, USA, led by reconstructive surgeon Dr. Maria Siemionow, age 58, have successfully performed the first almost total face transplant in the US, and the fourth globally, on a woman so horribly disfigured due to trauma, that cost her an eye. Two weeks ago Dr. Siemionow, in a 23-hour marathon surgery, replaced 80 percent of her face, by transplanting or grafting bone, nerve, blood vessels, muscles and skin harvested from a female donor’s cadaver.

The Clinic surgeons, in Wednesday’s news conference, described the details of the transplant but upon request, the team did not publish her name, age and cause of injury nor the donor’s identity. The patient’s family desired the reason for her transplant to remain confidential. The Los Angeles Times reported that the patient “had no upper jaw, nose, cheeks or lower eyelids and was unable to eat, talk, smile, smell or breathe on her own.” The clinic’s dermatology and plastic surgery chair, Francis Papay, described the nine hours phase of the procedure: “We transferred the skin, all the facial muscles in the upper face and mid-face, the upper lip, all of the nose, most of the sinuses around the nose, the upper jaw including the teeth, the facial nerve.” Thereafter, another team spent three hours sewing the woman’s blood vessels to that of the donor’s face to restore blood circulation, making the graft a success.

The New York Times reported that “three partial face transplants have been performed since 2005, two in France and one in China, all using facial tissue from a dead donor with permission from their families.” “Only the forehead, upper eyelids, lower lip, lower teeth and jaw are hers, the rest of her face comes from a cadaver; she could not eat on her own or breathe without a hole in her windpipe. About 77 square inches of tissue were transplanted from the donor,” it further described the details of the medical marvel. The patient, however, must take lifetime immunosuppressive drugs, also called antirejection drugs, which do not guarantee success. The transplant team said that in case of failure, it would replace the part with a skin graft taken from her own body.

Dr. Bohdan Pomahac, a Brigham and Women’s Hospital surgeon praised the recent medical development. “There are patients who can benefit tremendously from this. It’s great that it happened,” he said.

Leading bioethicist Arthur Caplan of the University of Pennsylvania withheld judgment on the Cleveland transplant amid grave concerns on the post-operation results. “The biggest ethical problem is dealing with failure — if your face rejects. It would be a living hell. If your face is falling off and you can’t eat and you can’t breathe and you’re suffering in a terrible manner that can’t be reversed, you need to put on the table assistance in dying. There are patients who can benefit tremendously from this. It’s great that it happened,” he said.

Dr Alex Clarke, of the Royal Free Hospital had praised the Clinic for its contribution to medicine. “It is a real step forward for people who have severe disfigurement and this operation has been done by a team who have really prepared and worked towards this for a number of years. These transplants have proven that the technical difficulties can be overcome and psychologically the patients are doing well. They have all have reacted positively and have begun to do things they were not able to before. All the things people thought were barriers to this kind of operations have been overcome,” she said.

The first partial face transplant surgery on a living human was performed on Isabelle Dinoire on November 27 2005, when she was 38, by Professor Bernard Devauchelle, assisted by Professor Jean-Michel Dubernard in Amiens, France. Her Labrador dog mauled her in May 2005. A triangle of face tissue including the nose and mouth was taken from a brain-dead female donor and grafted onto the patient. Scientists elsewhere have performed scalp and ear transplants. However, the claim is the first for a mouth and nose transplant. Experts say the mouth and nose are the most difficult parts of the face to transplant.

In 2004, the same Cleveland Clinic, became the first institution to approve this surgery and test it on cadavers. In October 2006, surgeon Peter Butler at London‘s Royal Free Hospital in the UK was given permission by the NHS ethics board to carry out a full face transplant. His team will select four adult patients (children cannot be selected due to concerns over consent), with operations being carried out at six month intervals. In March 2008, the treatment of 30-year-old neurofibromatosis victim Pascal Coler of France ended after having received what his doctors call the worlds first successful full face transplant.

Ethical concerns, psychological impact, problems relating to immunosuppression and consequences of technical failure have prevented teams from performing face transplant operations in the past, even though it has been technically possible to carry out such procedures for years.

Mr Iain Hutchison, of Barts and the London Hospital, warned of several problems with face transplants, such as blood vessels in the donated tissue clotting and immunosuppressants failing or increasing the patient’s risk of cancer. He also pointed out ethical issues with the fact that the procedure requires a “beating heart donor”. The transplant is carried out while the donor is brain dead, but still alive by use of a ventilator.

According to Stephen Wigmore, chair of British Transplantation Society’s ethics committee, it is unknown to what extent facial expressions will function in the long term. He said that it is not certain whether a patient could be left worse off in the case of a face transplant failing.

Mr Michael Earley, a member of the Royal College of Surgeon‘s facial transplantation working party, commented that if successful, the transplant would be “a major breakthrough in facial reconstruction” and “a major step forward for the facially disfigured.”

In Wednesday’s conference, Siemionow said “we know that there are so many patients there in their homes where they are hiding from society because they are afraid to walk to the grocery stores, they are afraid to go the the street.” “Our patient was called names and was humiliated. We very much hope that for this very special group of patients there is a hope that someday they will be able to go comfortably from their houses and enjoy the things we take for granted,” she added.

In response to the medical breakthrough, a British medical group led by Royal Free Hospital’s lead surgeon Dr Peter Butler, said they will finish the world’s first full face transplant within a year. “We hope to make an announcement about a full-face operation in the next 12 months. This latest operation shows how facial transplantation can help a particular group of the most severely facially injured people. These are people who would otherwise live a terrible twilight life, shut away from public gaze,” he said.