Double X Science - It's In Your Genes

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  • Biology Explainer: The big 4 building blocks of life–carbohydrates, fats, proteins, and nucleic acids

    …e X Extra: A triglyceride can have up to three different fatty acids attached to it. Canola oil, for example, consists primarily of oleic acid, linoleic acid, and linolenic acid, all of which are unsaturated fatty acids with 18 carbons in their chains. Why do we take in fat anyway? Fat is a necessary nutrient for everything from our nervous systems to our circulatory health. It also, under appropriate conditions, is an excellent way to store up…

    Authored by on June 8, 2012

  • After Newtown missteps, journalists get guidelines

    Protip: Don’t diagnose based on speculation. by Jessica Wright                Attention journalists: If you’ve been calling people “nuts” or “deranged” in your stories, the Associated Press is recommending that it’s time you stopped. This guideline — along with the common-sense assertion that writers shouldn’t diagnose individuals with a mental illness based entirely on speculation — is part of a new recommendation added to the AP styleboo…

    Authored by on March 27, 2013

  • Bad flu season in full swing, but flu shot still helpful

    …tbreak arrived early and features a strain that is infamous for its virulence. Forty-four states now have met the cutoff for “widespread” flu activity as of this writing, and in hotspots like Boston, MA, cases are 10 times the number from the same time last year. In many areas, hospitals have taken to setting up temporary tent shelters outside the buildings to manage the flood of cases and prevent spread inside the facility. ETA: This…

    Authored by on January 21, 2013

  • From spiders to breast cancer: Leslie Brunetta talks candidly about her cancer diagnosis, treatment, and follow-up

    …cancers are diagnosed as IDCs. Those cancers start with the cells lining the milk ducts. The ones in the left breast were invasive lobular carcinomas (ILCs), which start in the lobules at the end of the milk ducts. Only about 10% of breast cancers are ILCs. Oncologists hate lobular cancer. Unlike ductal cancers, which form as clumps of cells, lobular cancers form as single-file ribbons of cells. The tissue around ductal cancer cells reacts to t…

    Authored by on January 31, 2012

  • The average human vagina

    …ainer here) is derived from the Latin word for “sheath”. It is the internal cavity within the female body*. (A high school anatomy teacher was recently investigated for using this word in an anatomy class. Because, of course, 10th -graders don’t have vaginas, aren’t interested in vaginas, and certainly have no need to know what vaginas are. Vagina: it’s not a dirty word.) Vulva denotes the external female genitals – the lady parts that you see wh…

    Authored by on April 1, 2013

  • Image Caption Test Post

    …lainer here) is derived from the Latin word for “sheath”. It is theinternal cavity within the female body*. (A high school anatomy teacher was recently investigated for using this word in an anatomy class. Because, of course, 10th -graders don’t have vaginas, aren’t interested in vaginas, and certainly have no need to know what vaginas are. Vagina: it’s not a dirty word.) Vulva denotes the external female genitals – the lady parts that you see wh…

    Authored by on April 5, 2010

  • XX Tech Report: Rapid detection and treatment for deadly blood infections

    …In its press release announcing the Verigene test’s approval, the FDA said that, compared to standard microbiology methods, the Verigene test results “were consistent with traditional blood culture methods in 93 percent to 100 percent of the comparisons.” The test is remarkably simple, and even automated, requiring a dedicated sample processing instrument and a reader from Nanosphere. The patient sample is added to a glass slide covered…

    Authored by on August 24, 2012

  • Depressing genes

    …ch experience — yet it was obvious he didn’t have the knack for it. This student’s dogged pursuit of a mental health career made me wonder what kind of emotional turmoil he experienced which would make him think, at age 19, that psychiatry was the only vocation worth working towards. Then there were the two graduate students who both worked incredibly hard and were both prone to obsess about their experiments. Each burned off stress in quit…

    Authored by on May 17, 2013

  • Is the bar high enough for screening breast ultrasounds for breast cancer?

    …nt movement and legislation to inform women that they have dense breasts. Merits and pitfalls of device approval The approval of breast ultrasound hinges on a study of 200 women with dense breast evaluated retrospectively at 13 sites across the United States with mammography and ultrasound. The study showed a statistically significant increase in breast cancer detection when ultrasound was used with mammography. Approval of a device of this nat…

    Authored by on September 21, 2012

  • Autism and the DSM-5

    …questions in the context of these criteria. I’ve expanded on a couple of these reports at length elsewhere, as have others with an interest in the subject. The short version is that studies overall indicate that at the least, 10% of people who would currently have an autism diagnosis under the DSM-IV-TR criteria would lose that diagnosis under the DSM-5, and some studies go as high as 55% in their estimates. Even more troubling? The committee’s s…

    Authored by on April 23, 2013

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