Health Notes: Genetic Links Seen Between Depression, Autism, & other Disorders; Mind-Reading Rats; Public's Help Sought in Curing Cancer; More

Some interesting news from the world of health and medicine:

* Scientists see link in depression and four other disorders: Five disparate mental-health disorders may have a common genetic link, according to a new study that's getting lots of attention. The research has found that a number of genes are shared by people who have major depression, bipolar disorder, schizophrenia, autism, and attention-deficit hyperactivity disorder. The study was published in the edition of The Lancet publishing on Wednesday (abstract).

The researchers found that "four spots in the genome that were more common among those with psychiatric disease, two of which occurred in genes involved in communication between brain cells," according to an article in the Boston Globe. Also, "They also found that genetic risk factors for bipolar disorder and schizophrenia had the most overlap."

They also found that genetic risk factors for bipolar disorder and schizophrenia had the most overlap. - See more at: http://www.boston.com/news/science/blogs/science-in-mind/2013/02/27/autism-schizophrenia-and-other-psychiatric-disorders-share-genetic-underpinnings/I5Rdy7NikMlFvTe8d9BXoL/blog.html#sthash.iwHOygA5.dpuf

They also found that genetic risk factors for bipolar disorder and schizophrenia had the most overlap. - See more at: http://www.boston.com/news/science/blogs/science-in-mind/2013/02/27/autism-schizophrenia-and-other-psychiatric-disorders-share-genetic-underpinnings/I5Rdy7NikMlFvTe8d9BXoL/blog.html#sthash.iwHOygA5.dpuf

four spots in the genome that were more common among those with psychiatric disease, two of which occurred in genes involved in communication between brain cells. - See more at: http://www.boston.com/news/science/blogs/science-in-mind/2013/02/27/autism-schizophrenia-and-other-psychiatric-disorders-share-genetic-underpinnings/I5Rdy7NikMlFvTe8d9BXoL/blog.html#sthash.iwHOygA5.dpuf

found four spots in the genome that were more common among those with psychiatric disease, two of which occurred in genes involved in communication between brain cells.

They also found that genetic risk factors for bipolar disorder and schizophrenia had the most overlap.

- See more at: http://www.boston.com/news/science/blogs/science-in-mind/2013/02/27/autism-schizophrenia-and-other-psychiatric-disorders-share-genetic-underpinnings/I5Rdy7NikMlFvTe8d9BXoL/blog.html#sthash.iwHOygA5.dpuf

found four spots in the genome that were more common among those with psychiatric disease, two of which occurred in genes involved in communication between brain cells.

They also found that genetic risk factors for bipolar disorder and schizophrenia had the most overlap.

- See more at: http://www.boston.com/news/science/blogs/science-in-mind/2013/02/27/autism-schizophrenia-and-other-psychiatric-disorders-share-genetic-underpinnings/I5Rdy7NikMlFvTe8d9BXoL/blog.html#sthash.iwHOygA5.dpuf

found four spots in the genome that were more common among those with psychiatric disease, two of which occurred in genes involved in communication between brain cells.

They also found that genetic risk factors for bipolar disorder and schizophrenia had the most overlap.

- See more at: http://www.boston.com/news/science/blogs/science-in-mind/2013/02/27/autism-schizophrenia-and-other-psychiatric-disorders-share-genetic-underpinnings/I5Rdy7NikMlFvTe8d9BXoL/blog.html#sthash.iwHOygA5.dpuf

Telepathic rats? See for yourself.

* "First mind-reading implant gives rats telepathic power": Now there's a headline that'll get your attention. The New Scientist articles reports that "The world's first brain-to-brain connection has given rats the power to communicate by thought alone."

Although this is an exciting development in brain research (rats on different continents were even able to communicate via the Internet), the article notes that  "the exact information being communicated between the rats' brains is not clear."

* Tech giants seek public's help for cancer cure: British cancer researchers are joining forces with Google, Amazon.com, and Facebook to enlist the public's assistance in finding cures for cancer. Cancer Research U.K. is teaming up with the tech firms to get the public to perform tasks that can help in efforts such as "working out the exact sequence of a tumor's DNA,"according to a BBC News article.

Programmers, game designers, and others are set to meet this week to figure out how to create a game-life way to put the collective eyeballs and computer power of everyday citizens to solve problems in cancer research. The concept is similar to volunteer-computer efforts from the BOINC project, such as SETI@Home and medical-related endeavors such as RNA World and Malariacontrol.net. It's hoped the project will be up and running by summer.

* Coronary calcium indicates stroke risk: A coronary artery calcification score can predict the risk of stroke, independent of other factors, at least in cases of people with lower risk of cardiovascular disease. An article in MedPage Today says that this may or may not change how clinicians work, since it's already been established that stroke and coronary artery disease have some of the same disease processes.

What's more, the measure of calcification is done by an electron-beam CT scan, so any potential benefit of the rest must be weighed against the additional radiation exposure.

Geraldine Ferraro Dies of Multiple Myeloma - What is This Blood Cancer?

CT scan of the head of a man with multiple myeloma. There is a lesion in the left temporal bone (red arrows) consistent with multiple myeloma. Green arrows show a normal facial nerve canal. Photo: radpod.org

Geraldine Ferraro, the first woman to be U.S. vice presidential candidate for a major party, died March 27th of complications from multiple myeloma, a type of incurable blood cancer. If you haven't heard of multiple myeloma, you're not alone: many news reports have simply said that Ferraro died of blood cancer without specifying the specific disorder. If she had died of leukemia, the most common cancer of the blood, they certainly would have mentioned it because that's a disease most people are familiar with.

Although multiple myeloma is not as well known as leukemia, it starts in the same place: plasma cells, which become white blood cells. In multiple myeloma abnormal plasma cells form and multiply, accumulating in the bone marrow and crowding out normal cells. The myeloma may collect in the marrow of a number of different bones, which is what the "multiple" part of the disease's name means. In addition, myeloma cells may collect in organs of the body.

Geraldine Ferraro, who was 75, died at Massachusetts General Hospital in Boston, where she was receiving treatment. She was Walter Mondale's vice presidential nominee in 1984, and had suffered from multiple myeloma for 12 years. She was involved in campaigning for greater funding and new treatments for the disease, and was an honorary board member of the Multiple Myeloma Research Foundation (MMRF). Before being named VP candidate, Ferraro had been a member of the U.S. Congress from New York City and had served as a criminal prosecutor in Queens.

Find out more about multiple myeloma at the Medicine.net article here or at MayoClinic.org (both written for the lay reader).

Henrietta Lacks: Unsung Pioneer of Medicine Now in the Spotlight

The name Henrietta Lacks may not be familiar to many laypeople (yet), but it's well known to scientists and doctors all over the world. The twist is that Lacks was not a researcher, but a patient.

A poor black woman diagnosed with cervical cancer in 1951, Lacks was treated for the disease and her cancer cells were harvested without her knowledge or permission. It turns out these cells, nicknamed HeLa, were the first "immortal" cells: constantly reproducing from 1951 until today. And HeLa cells have been used by researchers over the last half-century to develop breakthroughs in polio, cancer, and many other diseases.

The amazing story of Henrietta Lacks is detail in the the acclaimed new book "The Immortal Life of Henrietta Lacks" by award-winning science writer Rebecca Skloot. (In a series of remarkable coincidences, this book about the ever-reproducing HeLa cells will be published February 2nd - Groundhog Day - and Skloot begins her tour to promote the book, which she's dubbed "The Immortal Book Tour," today, February 1st: the start of Black History Month.)

The last point is important because Skloot's book isn't just a science story but a personal story of Lacks (who died in 1951) and her family, who for more than 20 years didn't know of Henrietta's role in medical advances. (To this day, the family that has given so much to science has never been paid a dime, even though HeLa cells are sold to scientists and researchers for hefty sums.)

"The Immortal Life of Henrietta Lacks" has gained a lot of early praise from everyone from scientists and professors to book reviewers from the Chicago Tribune, Forbes, and other media to fellow nonfiction writers such as Susan Orlean.

Skloot was featured in a story on Henrietta Lacks on ABC's World News Sunday on January 31st.

More on the book:
You can find a selection of "The Immortal Life of Henrietta Lacks" reviews here.

Wired magazine created a chart detailing the remarkable contributions Henrietta Lacks has made to science.

Oprah Winfrey's "O" magazine published a 5,000-word excerpt of Skloot's book; you can read it here.

Tay-Sachs Disease: Symptoms, Treatment, Prognosis

Tay-Sachs disease is a fatal genetic neurological disorder that usually develops in children (and rarely in adults in their 20s or 30s). While babies can seem to develop normally at first, but then mental and physical abilities deteriorate over time. Eventually the child loses sight, hearing, and the ability to swallow; muscles atrophy; and paralysis results. There is no cure or treatment.

Tay-Sachs disease involves a problem with the storage of lipids (fats) in which harmful amounts of a particular fatty substance accumulates in tissues and nerve cells in the brain.

An article from the U.S. National Institutes of Health discusses what happens in Tay-Sachs disease, how it progresses, symptoms, treatment of symptoms, and prognosis.

Another article, from the National Human Genome Research Institute, offers a list of frequently asked questions about Tay-Sachs disease. And KidsHealth.org examines Tay-Sachs screening, who's at risk, prenatal diagnosis, and more.

Hereditary Sensory and Autonomic Neuropathy

Hereditary Sensory and Autonomic Neuropathy, often abbreviated as HSAN, refers to as many as six different degenerative disorders of the nervous system that involve loss of feeling, particularly in the hands and feet.

HSAN is a rare genetic condition caused by the abnormal functioning of the sensory nerves that control responses to pain and temperature, according to an article in WebMD. In one type of HSAN, HSAN 1, sufferers may have a lack of sensation in their extremities, and may be unable to sweat from those parts of their body unless their body temperature becomes dangerously high.

Sufferers from other types of HSAN may have the opposite problems: they may have pain shooting up through their legs, and they may find that they sweat excessively.