Pages

Rechercher dans ce blog

Chargement...

samedi 6 août 2011

Experts grow mouse sperm to help with human infertility

The finding, published in the journal Cell, marks a step forward for using stem cells for regenerative medicine.
Stem cells are the body's master cells and source of all cells and tissues. Because they can grow into different types of cells and multiply, experts hope to harness them to treat diseases and disorders, including cancer and diabetes.
Scientists at Kyoto University removed stem cells from mouse embryos and managed to coax them into a type of precursor cell known to grow into either mouse eggs or sperm.
They then transplanted these cells into the testes of infertile male mice -- which apparently went on to produce healthy sperm.
"The sperm were removed directly from the testes and fertilized with eggs (on laboratory dishes)," said lead author Mitinori Saitou, a professor at Kyoto University's department of anatomy and cell biology.
"After insemination, we made two set of embryos and these were transferred into the uterus of the foster mother and they derived healthy mice (that went on to reproduce normally)."
POSSIBLE TO GROW HUMAN SPERM
The experiment showed scientists how they can prepare precursor cells to eventually grow into sperm or egg.
"We have huge materials to work with now and ... we can accelerate our study into the cause of human infertility," Saitou told Reuters by telephone.
Saitou's team believes it may be possible to use adult human stem cells to grow human sperm.
"We can possibly use this knowledge to induce human primordial germ cells (cells that grow into eggs or sperm)," he said.
More work was needed, he said, because of the gulf between animal and human research.
For the moment, the team was trying to repeat their feat by producing mouse eggs using stem cells, he said.
read more... Résuméabuiyad

vendredi 5 août 2011

Vermont Mesothelioma Attorneys and Asbestos Cancer Resources (VT)


(VT) Asbestos Information:
The Green Mountains that gave Vermont its name could also be called the "Asbestos Mountains"; the same geologic processes that produced the greenish-hued minerals that predominate--mica, quartz and chlorite--also produced an abundance of serpentine, which is the source is chrysotile asbestos.

Vermont was once a producer of chrysotile, and in fact was the first state in which asbestos was mined commercially. According to the Agency for Toxic Substances and Disease Registry map of U.S. asbestos, there were a number of areas in northern Vermont that were considered for commercial asbestos production, but never developed. One of these sites was actually a source of amphibole fiber, which is even more deadly than the more commonly used chrysotile variety.

The population of Vermont increased by nearly 20% between 1980 and 2000; nonetheless, at a current population of around 624,000, it has the lowest population of any other state except Wyoming. In the two decades prior to the 2000 census, there were 75 fatalities attributable to asbestos diseases such as asbestosis or mesothelioma.

Vermont's Asbestos History
Although Henry John's company - the descendant of which is Johns-Manville, Inc. - had been in existence for fifty years, it was the New England Asbestos Mining and Milling Company that first mined the substance commercially in Vermont around the year 1899. This was the first commercial asbestos mine in the U.S., predating the operations in Libby, Montana, by over two decades. The mine, located on Mount Belvedere did not operate for long. The company closed the mine in 1902, but operations were restarted following the First World War; by 1929, the Eden-Belvadere mine was producing virtually the entire domestic supply of asbestos.

The mine changed ownership several times over the decades. As the health hazards of asbestos became more and more apparent during the 1970s, legal pressure was placed on the mine's owners by the EPA to make the operation less toxic.

Nonetheless, demand for asbestos dropped precipitously throughout the 1980s; the Mt. Belvedere mine was the last U.S. asbestos operation to close down in 1993. The area continues to be of interest to geologists and other scientists however, as scientists explore ways of sequestering excess carbon dioxide.

Vermont's Asbestos Industries and Job Sites
Asbestos was an ingredient in many building materials prior to 1980. These materials included a product called transite (a type of wall board made from asbestos-reinforced concrete), roofing shingles, linoleum flooring, ceiling tiles, "popcorn" ceiling texturing, pipe lagging and insulation as well as concrete water pipes. One such insulation product was vermiculite, a type of clay from Libby, Montana that was frequently contaminated with tremolite asbestos, a form of amphibole.

As a result, asbestos is frequently found not only in private homes but also in public buildings in which one would not normally except to find asbestos. These include schools, hospitals, and office buildings; the Hogback Ski Area Dorms are one such place.

Vermont's Power Plants
According to Center for Health Statistics data and the findings of a recent study in Puerto Rico, electrical power generation plants are exceptionally dangerous workplaces in terms of asbestos exposure. Vermont has one such plant worthy of mention: the Vermont Yankee Nuclear Power Plant, currently owned and operated by Entergy Nuclear, which took over from Yankee Atomic Power in 2002.

Asbestos has been widely used in power generation facilities as a flame retardant and insulator against both heat and electrical current. Electric wiring, panel partitions, and electrical cloth all contained asbestos prior to the 1980s. Asbestos insulation was used to pack electrical conduits. The materials used to build the housing facility were also manufactured with asbestos-containing materials (ACMs).

Vermont (VT) Asbestos Cancer & Mesothelioma Treatment Centers
Today, between 25 and 30% of all Americans will get some form of cancer during their lifetimes. There are many reasons for this, including the modern lifestyle and the poisons that have been put into the environment – of which asbestos is a prime example.

The number of clinics and hospitals that specialize in oncology have increased in response to the growing number of patients. Below is a list of the cancer treatment centers located in Vermont (VT) that we feature on Asbestos.net:

University of Vermont, Vermont Cancer Center

Burlington, Vermont (VT)

White River Junction Veterans Affairs Medical Center (VAMC)

White River Junction, Vermont (VT)

Vermont (VT) Mesothelioma Lawyer & Legal Resources:
A search through the Vermont Federal District Court Cases for asbestos-related personal injury product liability lawsuits, such as Vermont mesothelioma lawsuits, brings up no recent cases.

Vermont is ranked 46 in the U.S. for mesothelioma cases. With a malignant mesothelioma mortality rate of 14.55 per million, Vermont has a crude mortality rank of 13 in the country.

In Vermont, there are a number of known asbestos-exposed areas. These include Beecher Falls Manufacturing, Brandon Training School, Gilman Paper Co., Springfield Hospital, and Stowe Insurance Co. In Brattleboro, Brattleboro High School, Brattleboro Brattleboro Hospital, Brattleboro Hildreth Printing, and Brattleboro Howard Johnson's are all asbestos-exposed areas. Others are University of Vermont Medical Building, Burlington Power Co., Burlington Telephone Company, Mary Fletcher Hospital, General Electric, IBM and University of Vermont in Burlington; IBM in Essex Junction; Montpelier Capitol Office Building, Montpelier Senior Citizen House Project, National Life Insurance Newport and Newport Hospital in Montpelier; Yankee Atomic Power in Reedsborough; Rutland High School and Rutland Hospital in Rutland; Vermont Yankee Nuclear Power Plant in Vernon; the VA Hospital in White River Junction; and Hogback Ski Area-Dorms in Willmington.

Individuals living or working near these areas should be checked regularly for signs of mesothelioma or other types of asbestos cancer in order to file any lawsuits within the state's statute of limitations, something a Vermont mesothelioma lawyer will be able to help you with. While many of these sites have been inspected and some have been cleaned up, anyone who worked or lived in these areas before asbestos contamination was reported can still be affected. Also, it is important to keep in mind that these are only known asbestos sites. Other areas in the state may also contain asbestos but may not yet have been reported as such.

In terms of wrongful death suits, in 2006, Vermont's Supreme Court ruled that if the decedent has no living spouse, children or parents, the surviving sibling may file a wrongful death suit seeking damages for loss of companionship. A Vermont statute provides that in a wrongful death case the court jury may award damages with regard to pecuniary injuries to the wife, husband, or next of kin of the decedent. The Court had previously held that pecuniary injuries do not have to be limited to economic losses, but can also include recovery for loss of a child's or spouse's companionship, as well as loss of care, nurture, and protection. The court ruled that if a sibling, when next of kin of the decedent, submits evidence of the emotional, physical, and psychological relationship with the decedent, it is appropriate to award damages.

In Carter v. Fred's Plumbing and Heating, Inc., Vermont courts found that a plumber who developed asbestosis at least 19 years after his work-related exposure to asbestos was subject to the statue of limitations defined in the Occupational Disease Act, which was in force at the time of his last exposure. Since that act specified compensation was only payable if disablement occurred within five years of a work-related injury, the plaintiff's claims were dismissed.

In another key case in the state, Sheltra v. Vermont Asbestos Group, Vermont courts accepted the claimant's argument that the statue of limitations should begin at the time of discovery if discovery occurred after July 1999, when the discovery rule for occupational disease was established. The Legislature then amended the Occupational Disease Act to provide for the discovery rule, thus removing the harsh results that would have occurred for injuries that take a long time to manifest, such as mesothelioma, under the repealed Occupational Disease Act.

Those interested in filing a Vermont mesothelioma lawsuit should know that the statute of limitations for personal injury law in Vermont is three years with a discovery rule that states that this amount of time begins when the problem (in this case the mesothelioma) either was discovered or should have been discovered, and that a Vermont mesothelioma lawyer will work with you in order to make sure that important deadlines are not missed. Wrongful death cases are limited to a two-year statute of limitations with the same discovery rule. There is no special statute for asbestos cases in Vermont.
read more... Résuméabuiyad

what is Asbestos Cancer ??

Asbestos Cancer Mesothelioma, the type of cancer most commonly associated with asbestos exposure, is a malignancy that occurs in the lining of the lungs, abdomen, and heart. A mesothelioma diagnosis is generally classified as one of the following three types: pleural mesothelioma which occurs in the lining of the lungs, known as the pleura, peritoneal mesothelioma which occurs in the lining of the abdominal cavity, known as the peritoneum and pericardial mesothelioma which occurs in the lining of the heart, known as the pericardium. Asbestos, which has been used for, quite literally, thousands of years as a fire-retardant and insulation material has long been connected to sickness, though not necessarily cancer until the last 50 years. Once asbestos was classified as a known carcinogen, the Environmental Protection Agency and Consumer Product Safety Commission imposed strict regulation on its use in commercial and industrial products. Unfortunately, many of the companies producing asbestos products were well aware of the hazards which asbestos posed and continued to expose workers and laborers to the harmful asbestos fibers. Asbestos cancer diagnosis is difficult due to the symptoms of the disease mimicking those of other illnesses.
Many asbestos cancer patients have successfully collected compensation from asbestos companies responsible for their exposure.
Unfortunately, it has come to light in recent years that many manufacturers of asbestos products were fully aware of the harmful nature of asbestos fibers and continued to expose hundreds of thousands of laborers to the toxic mineral. Asbestos products were prevalent in naval shipyards, power plants, oil refineries, and in ventilation/steam fixtures. Asbestos was also common in home construction materials, automobile parts, and thousands of other products.
Fortunately, you may be eligible for financial compensation if you have been diagnosed with asbestos-related cancer or other injury. While prognosis for asbestos related cancer is often poor, those who have been exposed negligently are able to secure compensation for their treatment as well as for their families in their battle with terminal disease. If you or a loved one has been diagnosed with mesothelioma or other asbestos disease, we urge you to fill out the brief form on this page. We'll send you an up-to-date information packet on new treatment options for mesothelioma, how to obtain compensation for your injuries, and important timelines associated with legal recourse for asbestos cancer patients.



Asbestos cancer diagnosis, including diagnosis of mesothelioma and lung carcinoma, can be difficult because symptoms of the disease can closely mimic those of other more minor respiratory complications. Symptoms, such as shortness of breath, chest pain, or chronic cough may lead physicians to suspect mesothelioma, particularly if the patient has a known asbestos exposure history. Diagnostic tools include CT scans and MRIs for patients where asbestos cancer is suspected. In most cases, these imaging scans will be able to provide a picture of the tumor, but a biopsy will likely be required to determine a conclusive diagnosis of mesothelioma rather than other lung carcinomas. In cases where pleural or peritoneal effusions have manifested in the patient, draining these and extracting the fluid through pleurocentesis can allow oncologists to test the fluid for the presence of malignant cells. Compensation for Asbestos Cancer Many asbestos cancer patients have successfully collected compensation from asbestos companies responsible for their exposure. Unfortunately, it has come to light in recent years that many manufacturers of asbestos products were fully aware of the harmful nature of asbestos fibers and continued to expose hundreds of thousands of laborers to the toxic mineral. Asbestos products were prevalent in naval shipyards, power plants, oil refineries, and in ventilation/steam fixtures. Asbestos was also common in home construction materials, automobile parts, and thousands of other products. Fortunately, you may be eligible for financial compensation if you have been diagnosed with asbestos-related cancer or other injury. While prognosis for asbestos related cancer is often poor, those who have been exposed negligently are able to secure compensation for their treatment as well as for their families in their battle with terminal disease. If you or a loved one has been diagnosed with mesothelioma or other asbestos disease, we urge you to fill out the brief form on this page. We'll send you an up-to-date information packet on new treatment options for mesothelioma, how to obtain compensation for your injuries, and important timelines associated with legal recourse for asbestos cancer patients.
read more... Résuméabuiyad

mercredi 3 août 2011

RIM launches two new BlackBerry Torch phones


The new phones, along with a Bold upgrade unveiled earlier, are part of what the Canadian company called its biggest global launch ever as it seeks to claw back North American market share losses from Apple's iconic iPhone and a slew of devices running on Google's Android software.

Investors reacted favorably, pushing RIM's deflated stock price up 3 percent.

"RIM's new BlackBerry smartphones could well be the most important devices in the Canadian smart device vendor's history, following a recent slowdown in device shipments, staff cuts and doubts over the company's strategy and leadership," Ovum analyst Tony Cripps said.

The three touchscreen phones, running on the new BlackBerry OS 7, boast improved screen displays and pack a 1.2 GHz processor from Qualcomm, the most powerful ever for a BlackBerry phone. All three devices will launch with carriers globally by the end of August, RIM said.

The browser is 40 percent faster than the original Torch, hit shelves almost a year ago.

But since co-chief executive Mike Lazaridis has already promised "superphones" next year using the QNX-based operating system that runs RIM's PlayBook tablet computer, analysts are looking beyond the launch.

"This is a necessary product refresh in advance of the big bang that we hope and expect will happen with QNX-based phones," said CCS Insight vice-president of research John Jackson.

RIM shipped 13.2 million phones in the three months to late May, its first fall in shipments versus the prior quarter since at least mid-2007, as it pushed this launch back to August.

One of the Torch versions looks identical to the original touchscreen device with a slideout Qwerty keyboard. The other is RIM's first touch-only device since the disappointment of its Storm model.

The Bold upgrade will feature a near-field communications (NFC) chip that can turn the phone into a mobile wallet. It was first shown at RIM's BlackBerry World conference in May.

RIM's North American market share has fallen in the past year as high-end Android devices proliferate and Verizon added Apple's iPhone to its lineup. Globally the fall has been less severe, but from a smaller starting point, according to data compiled by research firms CCS Insight and Gartner.


"What would constitute success for these guys is essentially holding the fort," CCS's Jackson said. "A stop-loss outcome would be a success for these products in developed markets."

Waterloo, Ontario-based RIM has seen its share price fall 65 percent from a February peak, as its earnings and outlook missed expectations and its PlayBook fails to dent the iPad's dominance of the tablet market.

The stock jumped a dollar to $25.13 on the Nasdaq in early trade and to $23.97 on the Toronto Stock Exchange. It closed on Tuesday at levels last seen five years ago, giving the company a market capitalization of $12.7 billion.
read more... Résuméabuiyad

lundi 25 juillet 2011

Nafissatou Diallo rompt le silence dans l'affaire DSK

La femme de chambre qui accuse Dominique Strauss-Kahn de tentative de viol rompt son silence lundi dans la presse américaine, déclarant à Newsweek que l'ancien directeur du FMI lui est apparu comme un "homme fou" et l'a attaquée alors qu'elle entrait dans sa suite de l'hôtel Sofitel de New York le 14 mai dernier.
Nafissatou Diallo donne au magazine et à la chaîne ABC News, à qui elle a également accordé un entretien, la permission de l'identifier par son nom. Son visage apparaît de profil à la une de la prochaine livraison de Newsweek.


C'est la première fois que cette immigrée guinéenne âgée de 32 ans s'exprime dans les médias, alors que Dominique Strauss-Kahn doit comparaître dans une semaine, le 1er août, pour une nouvelle audience.
Les avocats de l'ancien ministre socialiste dénoncent une tentative tardive de la part de la jeune femme et sa défense pour obtenir de l'argent de Dominique Strauss-Kahn.
"Je veux la justice. Je veux qu'il aille en prison", déclare Nafissatou Diallo dans son entretien avec la chaîne ABC News, qui sera diffusé lundi matin. "Je veux qu'il sache qu'il y a des endroits où on ne peut pas utiliser son argent, où on ne peut pas utiliser son pouvoir."
L'un de ses avocats, Douglas Wigdor, a déclaré qu'elle avait décidé de s'exprimer publiquement pour que le monde sache qu'elle n'est "ni une artiste du racket ni une prostituée".
read more... Résuméabuiyad

LinkWithin

Related Posts Plugin for WordPress, Blogger...