Toplam 226 içerik listeleniyor
-
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 -
UW team stores digital images in DNA -- and retrieves them perfectly
Technology companies routinely build sprawling data centers to store all the baby pictures, financial transactions, funny cat videos and email messages its users hoard. But a new technique developed by University of Washington and Microsoft researchers could shrink the space needed to store digital data that today would fill a Walmart supercenter down to the size of a sugar cube. The team of computer scientists and electrical engineers has detailed one of the first complete systems to encode,...
https://www.biyologlar.com/uw-team-stores-digital-images-in-dna-and-retrieves-them-perfectly-haber-8723 -
West Coast scientists sound alarm for changing ocean chemistry
This is an oyster at Whiskey Creek Shellfish Hatchery in Netarts Bay, Oregon. The ocean chemistry along the West Coast of North America is changing rapidly because of global carbon dioxide emissions, and the governments of Oregon, California, Washington and British Columbia can take actions now to offset and mitigate the effects of these changes.
https://www.biyologlar.com/west-coast-scientists-sound-alarm-for-changing-ocean-chemistry-haber-8726 -
Study accurately dates coral loss at Great Barrier Reef
Historical and modern photographs of Stone Island taken in a) 1915 (photographer unknown); b) 1994 (photographer A. Elliot © Commonwealth of Australia GBRMPA); c) 2012 (photographer H. Markham); and Bramston Reef taken in d) c.1890 (W. Saville-Kent); e) 1994 (photographer A. Elliot © Commonwealth of Australia GBRMPA); f) 2012 (photographer T. Clark). Landscape features in the background of the images helped to locate the same sites: Gloucester Island (GI) and Cape Gloucester...
https://www.biyologlar.com/study-accurately-dates-coral-loss-at-great-barrier-reef-haber-8729 -
Avustralya, Kanser Türlerinden Birini Tamamen Ortadan Kaldıran İlk Ülke Olabilir.
Uluslararası Papilloma Virus Derneği, Avustralya'nın rahim ağzı kanserini tamamen ortadan kaldıran ilk ülke olabileceğini açıkladı.
https://www.biyologlar.com/avustralya-kanser-turlerinden-birini-tamamen-ortadan-kaldiran-ilk-ulke-olabilir- -
Avustralya, Kanser Türlerinden Birini Tamamen Ortadan Kaldıran İlk Ülke Olabilir.
Uluslararası Papilloma Virus Derneği, Avustralya'nın rahim ağzı kanserini tamamen ortadan kaldıran ilk ülke olabileceğini açıkladı.
https://www.biyologlar.com/avustralya-kanser-turlerinden-birini-tamamen-ortadan-kaldiran-ilk-ulke-olabilir- -
The Genetic Structure of Anatolia: From the Neolithic to the Oghuz Migrations
Anatolia has witnessed many migrations and has been home to a variety of civilizations. The increasing availability of ancient DNA samples from different periods and cultures makes it now possible to examine the genetic changes that have taken place in Anatolia since the Neolithic. The ancient DNA revolution has already dispelled many myths, but myths and legends die hard. Some of the more persistent ones concern the impact of the last migration wave to hit Anatolia, marked by the arrival of...
https://www.biyologlar.com/the-genetic-structure-of-anatolia-from-the-neolithic-to-the-oghuz-migrations -
Mitokondrial MTND1 Gen Mutasyonu İle İlişkili Lohn/Melas Örtüşme Sendromu
Mitokondrial MTND1 genindeki patojenik nokta mutasyonları daha önce iki farklı klinik fenotiple ilişkili olarak tanımlanmıştır –LHON ve MELAS -.Burada MTND1 geninde ,hem LHON hem de MELAS’ın klinik özelliklerini içeren bir örtüşme sendromu ile ilişkili ilk heteroplazmik mitokondrial DNA nokta mutasyonunu rapor ediyoruz.Kas histokimyasında ince mitokondrial anormallikler ortaya çıkmışken biyokimya analizinde izole bir kompleks I eksikliği...
https://www.biyologlar.com/mitokondrial-mtnd1-gen-mutasyonu-ile-iliskili-lohnmelas-ortusme-sendromu -
Mitokondrial MTND1 Gen Mutasyonu İle İlişkili Lohn/Melas Örtüşme Sendromu
Mitokondrial MTND1 genindeki patojenik nokta mutasyonları daha önce iki farklı klinik fenotiple ilişkili olarak tanımlanmıştır –LHON ve MELAS -.Burada MTND1 geninde ,hem LHON hem de MELAS’ın klinik özelliklerini içeren bir örtüşme sendromu ile ilişkili ilk heteroplazmik mitokondrial DNA nokta mutasyonunu rapor ediyoruz.Kas histokimyasında ince mitokondrial anormallikler ortaya çıkmışken biyokimya analizinde izole bir kompleks I eksikliği...
https://www.biyologlar.com/mitokondrial-mtnd1-gen-mutasyonu-ile-iliskili-lohnmelas-ortusme-sendromu -
Cell stress inflames the gut
Over 3.5 million people in Europe and the US suffer from Crohn's disease or ulcerative colitis – the two most common forms of IBD. Chronic bowel inflammation is caused by an overreaction of the immune system to the bacteria which naturally occur in the gut. "This overreaction can come about if, for example, the anti-stress mechanism in the cells of the intestinal mucosa does not function correctly," explains Prof. Dirk Haller of the TUM Chair of Nutrition and Immunology. What Prof. Haller is...
https://www.biyologlar.com/cell-stress-inflames-the-gut -
Magnetic nanoparticles could be key to effective immunotherapy
In recent years, researchers have hotly pursued immunotherapy, a promising form of treatment that relies on harnessing and training the body's own immune system to better fight cancer and infection. Now, results of a study led by Johns Hopkins investigators suggests that a device composed of a magnetic column paired with custom-made magnetic nanoparticles may hold a key to bringing immunotherapy into widespread and successful clinical use. A summary of the research, conducted in mouse and human...
https://www.biyologlar.com/magnetic-nanoparticles-could-be-key-to-effective-immunotherapy -
New resource makes gene-editing technology even more user friendly
Researchers at Harvard University and the University of California, San Diego, have developed a new user-friendly resource to accompany the powerful gene editing tool called CRISPR/Cas9, which has been widely adopted to make precise, targeted changes in DNA. This breakthrough has the potential to facilitate new discoveries in gene therapies and basic genetics research. The research was published in the July 13 issue of Nature Methods. The study describes an approach to simplify a laborious...
https://www.biyologlar.com/new-resource-makes-gene-editing-technology-even-more-user-friendly -
Kanser Tedavisine Bakteriler ve Nano Robotlar
Kana enjekte edilen ilaçların hastalıklı hücrelere adrese teslim ve nokta atışı ulaştığı zamanların eşiğindeyiz. Bizleri gereksiz bıçakaltı işlemlerden ve ilaçların yan etkilerinden koruyacak, bakteri ve nano robotların insanların iyiliği için işbirliği yaptıkları tıbbi yöntemleri inceleyeceğiz.Askerleri küçültüp mikro boyutlara getirebilecek teknolojinin sırrına sahip bilim adamı Jan Benes, CIA ajanlarının yardımıyla SSCB’den kaçar. Ancak bu esnada...
https://www.biyologlar.com/kanser-tedavisine-bakteriler-ve-nano-robotlar -
Simple technology makes CRISPR gene editing cheaper
University of California, Berkeley, researchers have discovered a much cheaper and easier way to target a hot new gene editing tool, CRISPR-Cas9, to cut or label DNA. The CRISPR-Cas9 technique, invented three years ago at UC Berkeley, has taken genomics by storm, with its ability to latch on to a very specific sequence of DNA and cut it, inactivating genes with ease. This has great promise for targeted gene therapy to cure genetic diseases, and for discovering the causes of disease. The...
https://www.biyologlar.com/simple-technology-makes-crispr-gene-editing-cheaper -
Stem cell breakthrough could set up future transplant therapies
A new method for creating stem cells for the human liver and pancreas, which could enable both cell types to be grown in sufficient quantities for clinical use, has been developed by scientists. Using the technique, researchers have for the first time been able to grow a pure, self-renewing population of stem cells specific to the human foregut, the upper section of the human digestive system. These so-called "Foregut stem cells" could then be developed further to produce liver or pancreatic...
https://www.biyologlar.com/stem-cell-breakthrough-could-set-up-future-transplant-therapies -
Tatlı Su Protozoonları ve Önemi
Protozoa tek hücreli, ökaryotik mikroorganizmalardır. Özellikle bakteri, tek hücreli alg ve diğer protistler üzerinden beslenirler. 80.000’in üzerinde protozoon türü tanımlanmıştır. Bunların yarıdan fazlası fosil, yaklaşık 10.000 kadarı da simbiyonttur [1]. Protozoon türleri uzun yıllar sadece insanlara verdikleri zarar düşünülerek, parazitolojik açıdan ele alınmış, serbest yaşayan protozoonlar ihmal edilmiştir. Gerçekte çok sayıda parazit protozoon...
https://www.biyologlar.com/tatli-su-protozoonlari-ve-onemi -
Small molecule acts as on-off switch for nature's antibiotic factory
Scientists have identified the developmental on-off switch for Streptomyces, a group of soil microbes that produce more than two-thirds of the world's naturally derived antibiotic medicines. Their hope now would be to see whether it is possible to manipulate this switch to make nature's antibiotic factory more efficient. The study, appearing August 28 in Cell, found that a unique interaction between a small molecule called cyclic-di-GMP and a larger protein called BldD ultimately controls...
https://www.biyologlar.com/small-molecule-acts-as-on-off-switch-for-natures-antibiotic-factory -
Stanford researchers genetically engineer yeast to produce opioids
For thousands of years, people have used yeast to ferment wine, brew beer and leaven bread. Now researchers at Stanford have genetically engineered yeast to make painkilling medicines, a breakthrough that heralds a faster and potentially less expensive way to produce many different types of plant-based medicines. Writing today in Science, the Stanford engineers describe how they reprogrammed the genetic machinery of baker's yeast so that these fast-growing cells could convert sugar into...
https://www.biyologlar.com/stanford-researchers-genetically-engineer-yeast-to-produce-opioids -
New stem cells go back further
One of the obstacles to employing human embryonic stem cells for medical use lies in their very promise: They are born to rapidly differentiate into other cell types.
https://www.biyologlar.com/new-stem-cells-go-back-further -
Enzyme controlling metastasis of breast cancer identified
Researchers at the University of California, San Diego School of Medicine have identified an enzyme that controls the spread of breast cancer. The findings, reported in the current issue of PNAS, offer hope for the leading cause of breast cancer mortality worldwide. An estimated 40,000 women in America will die of breast cancer in 2014, according to the American Cancer Society. "The take-home message of the study is that we have found a way to target breast cancer metastasis through a pathway...
https://www.biyologlar.com/enzyme-controlling-metastasis-of-breast-cancer-identified -
Stem cells from teeth can make brain-like cells
University of Adelaide researchers have discovered that stem cells taken from teeth can grow to resemble brain cells, suggesting they could one day be used in the brain as a therapy for stroke.
https://www.biyologlar.com/stem-cells-from-teeth-can-make-brain-like-cells -
Genome-wide search reveals new genes involved in long-term memory
A new study has identified genes involved in long-term memory in the worm as part of research aimed at finding ways to retain cognitive abilities during aging. The study, which was published in the journal Neuron, identified more than 750 genes involved in long-term memory, including many that had not been found previously and that could serve as targets for future research, said senior author Coleen Murphy, an associate professor of molecular biology and the Lewis-Sigler Institute for...
https://www.biyologlar.com/genome-wide-search-reveals-new-genes-involved-in-long-term-memory -
Chip-based technology enables reliable direct detection of Ebola virus
A team led by researchers at UC Santa Cruz has developed chip-based technology for reliable detection of Ebola virus and other viral pathogens. The system uses direct optical detection of viral molecules and can be integrated into a simple, portable instrument for use in field situations where rapid, accurate detection of Ebola infections is needed to control outbreaks. Laboratory tests using preparations of Ebola virus and other hemorrhagic fever viruses showed that the system has the...
https://www.biyologlar.com/chip-based-technology-enables-reliable-direct-detection-of-ebola-virus -
Damaged DNA may stall patrolling molecule to initiate repair
Sites where DNA is damaged may cause a molecule that slides along the DNA strand to scan for damage to slow on its patrol, delaying it long enough to recognize and initiate repair. The finding suggests that the delay itself may be the key that allows the protein molecule to find its target, according to researchers at the University of Illinois at Chicago. Usually, the repair protein zips along quickly, says Anjum Ansari, UIC professor of physics and co-principal investigator on the study,...
https://www.biyologlar.com/damaged-dna-may-stall-patrolling-molecule-to-initiate-repair -
Logging means ants, worms and other invertebrates lose rainforest dominance
Invertebrates perform essential functions for the smooth running of the ecosystems in tropical forests. For example, creatures such as termites and millipedes help dead leaves decompose and release their nutrients back into the soil, and carnivorous ants and spiders act as predators of herbivorous invertebrates that would otherwise munch through all the foliage. Nearly a half of all tropical rainforests worldwide have been logged, and this often causes heavy changes to the number and type of...
https://www.biyologlar.com/logging-means-ants-worms-and-other-invertebrates-lose-rainforest-dominance -
Snake venom helps hydrogels stop the bleeding
A nanofiber hydrogel infused with snake venom may be the best material to stop bleeding quickly, according to Rice University scientists. The hydrogel called SB50 incorporates batroxobin, a venom produced by two species of South American pit viper. It can be injected as a liquid and quickly turns into a gel that conforms to the site of a wound, keeping it closed, and promotes clotting within seconds. Rice chemist Jeffrey Hartgerink, lead author Vivek Kumar and their colleagues reported their...
https://www.biyologlar.com/snake-venom-helps-hydrogels-stop-the-bleeding -
Virginia Tech researchers take cue from spider glue in efforts to create new materials
A taut tug on the line signals the arrival of dinner, and the leggy spider dashes across the web to find a tasty squirming insect. The spider, known as an orb weaver, must perfectly execute this moment, from a lightning-fast reaction to an artfully spun web glistening with sticky glue. This glue -- created when glycoproteins are secreted from a spider's abdomen and interact with the atmosphere -- has been studied for the past 12 years by Brent Opell, a professor of biological sciences in the...
https://www.biyologlar.com/virginia-tech-researchers-take-cue-from-spider-glue-in-efforts-to-create-new-materials -
Wheat disease-resistance gene identified, potential to save billions
A gene that can prevent some of the most important wheat diseases has been identified--creating the potential to save more than a billion dollars in lost production in Australia alone each year. In a global collaboration including the University of Sydney's Plant Breeding Institute (PBI), the CSIRO, CIMMYT (Mexico), University of Newcastle, Chinese Academy of Sciences and the Norwegian University of Life Sciences, the gene Lr67 has been identified as providing resistance to three of the most...
https://www.biyologlar.com/wheat-disease-resistance-gene-identified-potential-to-save-billions -
New brain mapping reveals unknown cell types
Using a process known as single cell sequencing, scientists at Karolinska Institutet have produced a detailed map of cortical cell types and the genes active within them. The study, which is published in the journal 'Science', marks the first time this method of analysis has been used on such a large scale on such complex tissue. The team studied over three thousand cells, one at a time, and even managed to identify a number of hitherto unknown types. "If you compare the brain to a fruit...
https://www.biyologlar.com/new-brain-mapping-reveals-unknown-cell-types -
Why some neurons 'outsource' their cell body
Nerve cells come in very different shapes. Researchers at the Bernstein Center Berlin now reveal why, in insects, the cell body is usually located at the end of a separate extension. Using mathematical models, they show that this increases the strength of electrical signal transmission at no additional energetic cost. Nerve cells follow a functional design: They receive input signals over more or less ramified cell branches (dendrites), which they forward to other nerve cells along an...
https://www.biyologlar.com/why-some-neurons-outsource-their-cell-body -
Closing the case on an ancient archeological mystery
Climate change may be responsible for the abrupt collapse of civilization on the fringes of the Tibetan Plateau around 2000 B.C. WSU archaeologist Jade D'Alpoim Guedes and an international team of researchers found that cooling global temperatures at the end of the Holocene Climatic Optimum, a 4,000 year period of warm weather, would have made it impossible for ancient people on the Tibetan Plateau to cultivate millet, their primary food source. Guedes' team's research recently was published...
https://www.biyologlar.com/closing-the-case-on-an-ancient-archeological-mystery -
Restoring vision with stem cells
Age-related macular degeneration (AMRD) could be treated by transplanting photoreceptors produced by the directed differentiation of stem cells, thanks to findings published today by Professor Gilbert Bernier of the University of Montreal and its affiliated Maisonneuve-Rosemont Hospital. ARMD is a common eye problem caused by the loss of cones. Bernier's team has developed a highly effective in vitro technique for producing light sensitive retina cells from human embryonic stem cells. "Our...
https://www.biyologlar.com/restoring-vision-with-stem-cells -
Neurons constantly rewrite their DNA
Johns Hopkins scientists have discovered that neurons are risk takers: They use minor "DNA surgeries" to toggle their activity levels all day, every day. Since these activity levels are important in learning, memory and brain disorders, the researchers think their finding will shed light on a range of important questions. A summary of the study will be published online in the journal Nature Neuroscience on April 27. "We used to think that once a cell reaches full maturation, its DNA is totally...
https://www.biyologlar.com/neurons-constantly-rewrite-their-dna -
Nano-walkers take speedy leap forward with first rolling DNA-based motor
Physical chemists have devised a rolling DNA-based motor that's 1,000 times faster than any other synthetic DNA motor, giving it potential for real-world applications, such as disease diagnostics. Nature Nanotechnology is publishing the finding. "Unlike other synthetic DNA-based motors, which use legs to 'walk' like tiny robots, ours is the first rolling DNA motor, making it far faster and more robust," says Khalid Salaita, the Emory University chemist who led the research. "It's like the...
https://www.biyologlar.com/nano-walkers-take-speedy-leap-forward-with-first-rolling-dna-based-motor -
Time Lapse Of Butterfly's Wings Expanding
This is time lapse video of a black swallowtail butterfly emerging from its chrysalis and letting its wings expand. When a butterfly comes out, it has to hang upside down to let its wings fill up with fluid before it can fly. This takes a long time so it's hard to see with the naked eye. Speeding up the video let's you see it. There's a slower version of this, and other videos like it, at WildlifeTheater.com. I hope you enjoy it.
https://www.biyologlar.com/time-lapse-of-butterflys-wings-expanding -
Great Barrier Reef marine reserves combat coral disease
A new and significant role for marine reserves on the Great Barrier Reef has been revealed, with researchers finding the reserves reduce the prevalence of coral diseases. It's been known for some time that marine reserves are important for maintaining and enhancing fish stocks, but this is the first time marine reserves have been shown to enhance coral health on the Great Barrier Reef. Researchers from the ARC Centre of Excellence for Coral Reef Studies at James Cook University found that...
https://www.biyologlar.com/great-barrier-reef-marine-reserves-combat-coral-disease -
Bering Sea hotspot for corals and sponges
North of the Aleutian Islands, submarine canyons in the cold waters of the eastern Bering Sea contain a highly productive "green belt" that is home to deep-water corals as well as a plethora of fish and marine mammals. Situated along the continental slope, the area also supports a thriving -- but potentially environmentally damaging -- bottom-trawling fishing industry that uses large weighted nets dragged across the seafloor to scoop up everything in their path. A new study, conducted by...
https://www.biyologlar.com/bering-sea-hotspot-for-corals-and-sponges -
Combining adult stem cells with hormone may speed bone fracture healing
A combination of adult stem cells and parathyroid hormone significantly increased new bone formation in laboratory animals and may speed the healing process for human bone fractures caused by osteoporosis, a new study shows. The study is published online by Molecular Therapy, a peer-reviewed journal in the Nature Publishing Group. Researchers used a combination of mesenchymal stem cells, which are derived from bone marrow taken from adults, and parathyroid hormone, also called PTH, which...
https://www.biyologlar.com/combining-adult-stem-cells-with-hormone-may-speed-bone-fracture-healing -
Herpes outbreak, other marine viruses linked to coral bleaching event
A study at Oregon State University has concluded that significant outbreaks of viruses may be associated with coral bleaching events, especially as a result of multiple environmental stresses. One such event was documented even as it happened in a three-day period. It showed how an explosion of three viral groups, including a herpes-like virus, occurred just as corals were bleaching in one part of the Great Barrier Reef off the east coast of Australia. The findings, reported in Frontiers in...
https://www.biyologlar.com/herpes-outbreak-other-marine-viruses-linked-to-coral-bleaching-event -
West Coast scientists sound alarm for changing ocean chemistry
The ocean chemistry along the West Coast of North America is changing rapidly because of global carbon dioxide emissions, and the governments of Oregon, California, Washington and British Columbia can take actions now to offset and mitigate the effects of these changes. That is the conclusion of a 20-member panel of leading West Coast ocean scientists, who presented a comprehensive report on Monday outlining a series of recommendations to address the increase in ocean acidification and...
https://www.biyologlar.com/west-coast-scientists-sound-alarm-for-changing-ocean-chemistry -
New way to harvest stem cells better for donors
Australian scientists have developed a new method for harvesting stem cells, which is less invasive and reduces side effects for donors.
https://www.biyologlar.com/new-way-to-harvest-stem-cells-better-for-donors -
Griffith uses 3-D tissue engineering to revolutionize dental disease
The discomfort and stigma of loose or missing teeth could be a thing of the past as Griffith University researchers pioneer the use of 3D bioprinting to replace missing teeth and bone. The three-year study, which has been granted a National Health and Medical Research Council Grant of $650,000, is being undertaken by periodontist Professor Saso Ivanovski from Griffith's Menzies Health Institute Queensland. As part of an Australian first, Professor Ivanovski and his team are using the latest...
https://www.biyologlar.com/griffith-uses-3-d-tissue-engineering-to-revolutionize-dental-disease -
Small molecules change biological clock rhythm
A team of chemists and biologists at the Institute of Transformative Bio-Molecules (ITbM), Nagoya University have succeeded in finding new molecules that change the circadian rhythm in mammals by applying synthetic chemistry methods, which makes use of highly selective metal catalysts. Most living organisms have a biological clock with an approximately 24-hour circadian rhythm, which regulates important body functions such as sleep/wake cycles, hormone secretion, and metabolism. Disruption of...
https://www.biyologlar.com/small-molecules-change-biological-clock-rhythm -
Spider and centipede venom evolved from insulin-like hormone
Funnel-web spider venom contains powerful neurotoxins that instantly paralyze prey (usually insects). Millions of years ago, however, this potent poison was just a hormone that helped ancestors of these spiders regulate sugar metabolism, similar to the role of insulin in humans. Surprisingly, this hormone's weaponization--described on June 11 in the journal Structure--occurred in arachnids as well as centipedes, but in different ways. Researchers at the University of Queensland in Australia...
https://www.biyologlar.com/spider-and-centipede-venom-evolved-from-insulin-like-hormone -
Mantis shrimp inspires next generation of ultra-strong materials
This is the herringbone structure of the outer layer (impact region) of the mantis shrimp dactyl club.
https://www.biyologlar.com/mantis-shrimp-inspires-next-generation-of-ultra-strong-materials -
Mantis shrimp inspires next generation of ultra-strong materials
This is the herringbone structure of the outer layer (impact region) of the mantis shrimp dactyl club.
https://www.biyologlar.com/mantis-shrimp-inspires-next-generation-of-ultra-strong-materials -
Male hormones help lemur females rule
Lemur girls behave more like the guys, thanks to a little testosterone, according to a new study. Males rule in most of the animal world. But when it comes to conventional gender roles, lemurs -- distant primate cousins of ours -- buck the trend. It's not uncommon for lady lemurs to bite their mates, snatch a piece of fruit from their hands, whack them in the head or shove them out of prime sleeping spots. Females mark their territories with distinctive scents just as often as the males do....
https://www.biyologlar.com/male-hormones-help-lemur-females-rule -
Stem cell transplant from young to old can heal stomach ulcers
Bethesda, MD (June 16, 2016) -- Basic and translational research paves the way for breakthroughs that can ultimately change patient care. Three new studies from Cellular and Molecular Gastroenterology and Hepatology (CMGH) -- AGA's basic and translational open-access journal -- provide a glimpse into future treatment strategies for stomach ulcers, inflammatory bowel disease and alcoholic liver disease. Please find summaries below. To speak with the journal authors, please email...
https://www.biyologlar.com/stem-cell-transplant-from-young-to-old-can-heal-stomach-ulcers -
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 -
Brain scans show birds of a feather do flock together
The hottest hairstyle, the latest extreme sport, the newest viral stunt -- trends happen for a reason and now scientists have a better understanding of why. In a study using functional magnetic resonance imaging, Virginia Tech Carilion Research Institute scientists found that our inherent risk-taking preferences affect how we view and act on information from other people. The brain scans showed that study participants increased their perceived value of a gamble after seeing other people take...
https://www.biyologlar.com/brain-scans-show-birds-of-a-feather-do-flock-together