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Science & Tech

Blocking a Gene Could Reverse Aging Skin
Science & Tech  (tags: gene, aging skin, research, transgenic mouse, mouse model )

- 3794 days ago -
Researchers from Stanford University School of Medicine found blocking a single gene, NF-B, can reverse aging in the skin of mammals. They used a transgenic mouse model to test the effect of blocking the gene in the basal layer of the mouse epidermis.
Newly-Identified Exercise Gene Could Help With Depression
Science & Tech  (tags: depression, mice, research, gene, exercise gene, brain, anti-depression )

- 3794 days ago -
Depression affects 16 percent of the population in the United States. Boosting an exercise-related gene in the brain works as a powerful anti-depressant in mice--a finding that could lead to a new anti-depressant drug target.
Lupus Gene Finding Prompts Call For More DNA Samples
Science & Tech  (tags: humans, lupus, SLE, gene, autoimmune disease, research )

- 3795 days ago -
Lupus is an autoimmune disease which frequently causes skin rash, joint pains and malaise, but can also lead to inflammation of the kidneys and other internal organs. Wellcome Trust researchers have identified a key gene involved in the disease Lupus.
Meet the Supermouse Bred By Genetic Scientists That CAN'T Get Cancer
Science & Tech  (tags: mice, cancer, resistance, gene, protein, Par-4, liver cancer, prostate cancer, science )

- 3800 days ago -
A mouse gene called Par-4, which produces the protein. U.S. researchers genetically engineered a group of mice to have higher levels of the protein than normal. These mice were immune to many forms of cancer, such as cancer of the liver and prostate.
Gene Research Sheds Light on Huntington's Disease
Science & Tech  (tags: Huntington disease, humans, theory, trinucleotide repeats, gene, disease model, research )

- 3802 days ago -
The longer the sequence, the greater the chance of additional mutation. The genes carrying the disease code might be accumulating more and more DNA repeats over time, until some critical threshold is crossed.
Gene 'Protects Against Cancers'
Science & Tech  (tags: humans, gene, cancer, B-MYB gene, disease, gene variant )

- 3805 days ago -
A single gene may protect its carrier against a variety of cancers, according to new research. Two variants of the B-MYB gene carried by up to half of the world's population are found less often in people with cancer.
Mutation Fired Outbreak of Deadly Tropical Virus
Science & Tech  (tags: DNA mutation, gene, virus, Chikungunya virus, tropical disease, mosquitoes, humans, infection )

- 3810 days ago -
A simple change in the genetic sequence of the chikungunya virus may have triggered a massive outbreak of the deadly tropical disease on an island in the Indian Ocean. The mutation made it easier for the virus to reproduce inside the mosquitoes.
Oral Sex Gene Helps Male Fish Fake It
Science & Tech  (tags: fish, eggs, sperms, fertilization, gene, mating, science )

- 3810 days ago -
As soon as a female has spawned her eggs, she collects them up in her mouth. Males of certain cichlid species in east Africa have evolved a way to increase the odds that females take up their sperm. A gene called csf1ra was responsible.
Humans And Chimps Differ At Level Of Gene Splicing
Science & Tech  (tags: humans, chimps, gene, alternative splicing, gene expression, science )

- 3811 days ago -
Researchers are closer to understanding why humans differ so greatly from chimpanzees in the way they look, behave, think, and fight off disease, despite having genes that are nearly 99% identical. 6% to 8% of alternative splicing events were different.
Too Much Sugar Turns Off Gene That Controls the Effects of Sex Steroids
Science & Tech  (tags: sugar, gene, regulation, sex steroids, fructose, glucose, testosterone, estrogen )

- 3816 days ago -
Eating too much fructose and glucose can turn off the gene that regulates the levels of active testosterone and estrogen in the body, shows a new study in mice and human cell cultures. Eat complex carbohydrates and avoid sugar.
Genes Join Battle of the Sexes
Science & Tech  (tags: gender, sexes, flies, males, females, X chromosome, gene, Dox )

- 3820 days ago -
The researchers compared the DNA of male fruit flies that produce 90% female offspring to the DNA from a line that yields equal numbers of each gender. They traced the difference to a gene located on the X chromosome that they dubbed Dox.
Stanford Scientists Find Gene That Gives Dogs Black Fur
Science & Tech  (tags: fur, gene, protein, defensins, melanin, cortisol, skin, hair color, stress adaptation, weight regulation )

- 3826 days ago -
Defensin protein engages the melanocortin pathway, a circuit of molecular interactions that controls the type of melanin and amount of cortisol produced by the body, which determines skin and hair color as well as stress adaptation and weight regulation
DNA Shows Neanderthals Had Gene Critical for Speech
Science & Tech  (tags: humans, speech, DNA, gene, science, Neanderthals )

- 3836 days ago -
Neanderthals, an archaic human species that dominated Europe until the arrival of modern humans some 45,000 years ago, possessed a critical gene known to underlie speech, according to DNA evidence retrieved from two individuals excavated from Spain.
Fine-Tuned Map Of Human Genome Offers Fresh Clues About Disease
Science & Tech  (tags: disease, genome, map, gene, geneticengineering, genes, genes )

- 3840 days ago -
Quoted from AFP: Scientists on Wednesday released the finest-detailed map yet of variants in the human genetic code declaring it should help unlock inherited causes of disease and reveal secrets of evolution. Read more...
New Telomere Discovery Could Help Explain Why Cancer Cells Never Stop Dividing
Science & Tech  (tags: telomeres, telomerase, RNA, gene, drug target, cancer, cells, humans )

- 3851 days ago -
Telomeres, the repeated DNA-protein complexes at the end of chromosomes that progressively shorten every time a cell divides, also contain RNA. This discovery may provide a new avenue of attack for stopping telomere renewal in cancer cells.

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