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Adipose tissue-derived mesenchymal stem cell | Beyond the Dish

Posted: Published on January 20th, 2015

Mesenchymal stem cells possess a cell-surface protein called ALK2. ALK2 acts as a receptor for bone-inducing growth factors. ALK2, for example, is expressed in cartilage and if mesenchymal stem cells express a constantly-active form of ALK2, known as caALK2, these cells are driven to become cartilage-making cells (known as chondrocytes). Can this receptor be used to drive bone formation? It turns out that manipulating ALK2 can drive fat-based stem cells (ASCs) to become bone making cells that ultimately improve bone tissue engineering. Researchers from the laboratory of Benjamin Levi at Massachusetts General Hospital, Boston, Massachusetts have fiddled with ALK2 in mesenchymal stem cells to for formation of bone from ASCs, and to enhance bone regeneration in a living animal. To do this, Levis team genetically manipulated mice so that they expressed a form of ALK2 that was constantly turned on known as caALK2. The fat-based MSCs were then isolated and analyzed for their ability to make bone in culture. caALK ASCs were much more responsive to bone-inducing growth factors. These cells also expressed a whole host of bone-specific genes (e.g., Alp, Runx2, Ocn, Ops) after seven days. Since the caALK2 MSCs did so well in culture, they were then tested … Continue reading

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Biology Transport in Plants part 13 (Xylem transport: Apoplast, symplast pathway) CBSE class 11 XI – Video

Posted: Published on January 20th, 2015

Biology Transport in Plants part 13 (Xylem transport: Apoplast, symplast pathway) CBSE class 11 XI Biology Transport in Plants part 13 (Xylem transport: Apoplast, symplast pathway) CBSE class 11 XI. By: ExamFearVideos … Continue reading

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Biology Transport in Plants part 14 (Xylem transport) CBSE class 11 XI – Video

Posted: Published on January 20th, 2015

Biology Transport in Plants part 14 (Xylem transport) CBSE class 11 XI Biology Transport in Plants part 14 (Xylem transport: Endodermis to xylem, Root presure) CBSE class 11 XI. By: ExamFearVideos … Continue reading

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Biology Transport in Plants part 15 (Transpiration pull) CBSE class 11 XI – Video

Posted: Published on January 20th, 2015

Biology Transport in Plants part 15 (Transpiration pull) CBSE class 11 XI Biology Transport in Plants part 15 (Transpiration pull: Stomatal opening closing) CBSE class 11 XI. By: ExamFearVideos … Continue reading

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NCERT biology class 11 Biological diversity in living organisms CBSE class 11 – Video

Posted: Published on January 20th, 2015

NCERT biology class 11 Biological diversity in living organisms CBSE class 11 NCERT biology class 11 Biological diversity in living organisms CBSE class 11. Prepare for NEET and WBJEE medical exams. For more information, log on to- htt... By: Suman Bhattacharjee … Continue reading

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NCERT biology class 11 Taxonomic classification CBSE class 11 – Video

Posted: Published on January 20th, 2015

NCERT biology class 11 Taxonomic classification CBSE class 11 NCERT biology class 11 Taxonomic classification CBSE class 11. Prepare for NEET and WBJEE medical exams. For more information, log on to- http://www.shomusbi... By: Suman Bhattacharjee … Continue reading

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Learn biology with Phii Oil – digestive system – Video

Posted: Published on January 20th, 2015

Learn biology with Phii Oil - digestive system via YouTube Capture. By: andi citra pratiwi … Continue reading

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VLOG 14: “Biology: The Study of Life” |Jan. 13th, 2015| – Video

Posted: Published on January 20th, 2015

VLOG 14: "Biology: The Study of Life" |Jan. 13th, 2015| Story of my life i study bio... what a life! By: Gabriel Llagas … Continue reading

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Biology students gain exposure via wildlife photography

Posted: Published on January 20th, 2015

Jim Matheny, WBIR 7:44 p.m. EST January 19, 2015 Maryville College professor Drew Crain holds a mass of wood frog eggs for his students to photograph at Cades Cove.(Photo: Jim Matheny, WBIR) (WBIR - CADES COVE) Your typical college biology class requires a great deal of memorization. At Maryville College, a unique course is teaching students about the world around them by creating photographic memories. "It's not just a science class. And it's not just an art class. It's an art-meets-science class," said Dr. Drew Crain, professor of biology and wildlife photography at Maryville College. For around a decade, Crain has offered a course that develops a greater understanding of biology by providing students exposure through the lenses of high quality cameras to capture wildlife photography. Maryville College wildlife biology-photography students walk through Cades Cove.(Photo: Jim Matheny, WBIR) "These are not photography majors. Many of them, the closest they've come to taking a great photo is taking their iPhone out at a concert," said Crain. "With technology today, anyone can take a good photograph. My challenge to these students is to take great photographs." Crain and around half a dozen students arrived at Cades Cove in the Great Smoky Mountains … Continue reading

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Cardiac Anatomy for Radiology Part 2 – Video

Posted: Published on January 20th, 2015

Cardiac Anatomy for Radiology Part 2 Cardiac Anatomy for Radiology is part of a 10 part series covering the basics of the anatomy you need to know for cardiac imaging. This series will be useful for anyone studying for their FRCR... By: mmichmog … Continue reading

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