Toplam 17 içerik listeleniyor
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Cells are crawling all over our bodies, but how?
For better and for worse, human health depends on a cell's motility –– the ability to crawl from place to place. In every human body, millions of cells –are crawling around doing mostly good deeds ––– though if any of those crawlers are cancerous, watch out.
https://www.biyologlar.com/cells-are-crawling-all-over-our-bodies-but-how -
Penn bioengineers show why lab-made stem cells might fail: Errors in DNA folding
Induced pluripotent stem cells hold promise for regenerative medicine because they can, in theory, turn into any type of tissue and because they are made from a patient's own adult cells, guaranteeing compatibility. However, the technique that turns adult cells into these iPS cells is not foolproof; after reverting to their pluripotent state, these cells don't always correctly differentiate back into adult cells. Researchers from the University of Pennsylvania have now discovered one of the...
https://www.biyologlar.com/penn-bioengineers-show-why-lab-made-stem-cells-might-fail-errors-in-dna-folding -
Hybrid cells cause chaos around cancers
Rice University researchers have built a simulation to show how cancerous tumors manipulate blood-vessel growth for their own benefit. Like all cells, those in tumors need access to the body's fine network of blood vessels to bring them oxygen and carry away waste. Tumors have learned to game the process called angiogenesis in which new vessels sprout from existing ones, like branches from a tree. But some details have been hidden until now. The ability to stop tumors through...
https://www.biyologlar.com/hybrid-cells-cause-chaos-around-cancers -
How a single molecule turns one immune cell into another
All it takes is one molecule to reprogram an antibody-producing B cell into a scavenging macrophage. This transformation is possible, new evidence shows, because the molecule (C/EBPa, a transcription factor) "short-circuits" the cells so that they re-express genes reserved for embryonic development. The findings appear July 30 in Stem Cell Reports, the journal of the International Society for Stem Cell Research. Over the past 28 years, researchers have shown that a number of specialized cell...
https://www.biyologlar.com/how-a-single-molecule-turns-one-immune-cell-into-another -
Legions of nanorobots target cancerous tumors with precision
The legions of nanorobotic agents are actually composed of more than 100 million flagellated bacteria
https://www.biyologlar.com/legions-of-nanorobots-target-cancerous-tumors-with-precision -
Legions of nanorobots target cancerous tumors with precision
The legions of nanorobotic agents are actually composed of more than 100 million flagellated bacteria
https://www.biyologlar.com/legions-of-nanorobots-target-cancerous-tumors-with-precision -
T cells use 'handshakes' to sort friends from foes
T cells, the security guards of the immune system, use a kind of mechanical "handshake" to test whether a cell they encounter is a friend or foe, a new study finds.
https://www.biyologlar.com/t-cells-use-handshakes-to-sort-friends-from-foes -
T cells use 'handshakes' to sort friends from foes
T cells, the security guards of the immune system, use a kind of mechanical "handshake" to test whether a cell they encounter is a friend or foe, a new study finds.
https://www.biyologlar.com/t-cells-use-handshakes-to-sort-friends-from-foes -
Marine animals use new form of secret light communication
Researchers from the Queensland Brain Institute at The University of Queensland have uncovered a new form of secret light communication used by marine animals. The findings may have applications in satellite remote sensing, biomedical imaging, cancer detection, and computer data storage. Dr Yakir Gagnon, Professor Justin Marshall and colleagues previously showed that mantis shrimp (Gonodactylaceus falcatus) can reflect and detect circular polarising light, an ability extremely rare in nature....
https://www.biyologlar.com/marine-animals-use-new-form-of-secret-light-communication -
May repairs full of mistakes develop into cancer?
These are DNA double-strand breaks, introduced by ionizing radiation or other mechanisms, are repaired rapidly and precisely in normal cells (right pathway). In contrast, compromised Tel1 activation with inefficient end...
https://www.biyologlar.com/may-repairs-full-of-mistakes-develop-into-cancer -
May repairs full of mistakes develop into cancer?
These are DNA double-strand breaks, introduced by ionizing radiation or other mechanisms, are repaired rapidly and precisely in normal cells (right pathway). In contrast, compromised Tel1 activation with inefficient end...
https://www.biyologlar.com/may-repairs-full-of-mistakes-develop-into-cancer -
First fossil facial tumor discovered in a dwarf duck-billed dinosaur from Transylvania
The first-ever record of a tumourous facial swelling found in a fossil has been discovered in the jaw of the dwarf dinosaur Telmatosaurus transsylvanicus, a type of primitive duck-billed dinosaur known as a hadrosaur.
https://www.biyologlar.com/first-fossil-facial-tumor-discovered-in-a-dwarf-duck-billed-dinosaur-from-transylvania -
'Big data' drills down into metabolic details
The same metabolic pathway can produce different results in different bodily tissues. A Rice University algorithm is designed to find those differences.
https://www.biyologlar.com/big-data-drills-down-into-metabolic-details -
'Big data' drills down into metabolic details
The same metabolic pathway can produce different results in different bodily tissues. A Rice University algorithm is designed to find those differences.
https://www.biyologlar.com/big-data-drills-down-into-metabolic-details -
Forest Elephants – The New Yorker (2015)
African forest elephants have been featured in quite a few documentaries including the tropical rainforests episode of the Planet Earth series. Here in this short documentary we listen to Andrea Turkalo’s wonderful lecture on behavior of these charismatic megafaunal animals. She has been observing the elephants in Dzanga Research Camp at the Dzanga-Sangha National Park in Central African Republic for more than two decades. Andrea Turkalo is Associate Conservation Scientist at the Wildlife...
https://www.biyologlar.com/forest-elephants-the-new-yorker-2015 -
Bir Hücrenin Kanser Hücresine Dönüşmesi İçin Kaç Mutasyona İhtiyaç Var?
Kanser, doğal seçilimin çirkin yüzüdür. Mutasyonlar tekil organizmalar için nadiren iyi olsa da, aynı şeyi vücudumuzun içinde kontrolden çıkmış şekilde evrimleşen hücreler için söyleyemeyiz.
https://www.biyologlar.com/bir-hucrenin-kanser-hucresine-donusmesi-icin-kac-mutasyona-ihtiyac-var -
Mikrobiyom bileşenleri, kanser hücrelerine saldırarak tedavinin gücünü artırıyor
Bağırsak bakterilerinden hangisi, bağışıklık sistemimizin kanser hücreleri ile savaşmasına yardımcı olur? Biliminsanları bu bakterileri ve bakterilerin bunu nasıl yapabildiğini keşfetti.
https://www.biyologlar.com/mikrobiyom-bilesenleri-kanser-hucrelerine-saldirarak-tedavinin-gucunu-artiriyor