Older men with low testosterone levels who received testosterone supplementation increased lean body mass and decreased body fat, but were no stronger and had no improvement in mobility or cognition compared with men who did not use the supplement.
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Children with cancer have a higher prevalence of body abnormalities, such as asymmetric lower limbs and curvature of the spine, suggesting that the genetic defect responsible for the abnormality may play a role in the development of cancer, according to a new study.
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Despite increases in the overall use of opioid drugs to relieve severe pain, black and Hispanic patients remain significantly less likely than whites to receive these pain-relievers in emergency rooms, according to a new national study. Opioids are narcotic drugs used to treat patients with moderate to severe pain.
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Endangered northern Amur tigers have received a boost to their protection through the creation of a new national park in Khabarovsk province, located in the Russian Far East. Tiger habitats in the Russian Far East face extreme pressures from uncontrolled logging, construction and wildfires.
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Poor or non-existent collection controls are threatening the survival of many of the plant species used in traditional and modern medicines. Some estimates indicate that 15,000 of the 50,000 — 70,000 plant species used for medicinal purposes and mostly collected from the wild may be threatened, many as a direct result of unsustainable collection practices.
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There has been an alarming upsurge in armed poaching of endangered rhinos primarily in the “Lowveld Conservancies” in South Eastern Zimbabwe over the past three years, according to World Wildlife Fund. Since 2000, 22 black rhinos have been shot in the Lowveld Conservancies in addition to 45-50 black rhinos that have been shot by poachers in other conservancies.
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EU environment ministers have failed to seize a key opportunity to curb emissions from the aviation sector through the European Emissions Trading Scheme, WWF said at the conclusion of the EU Environment Council in Brussels. Scientists estimate that the effect of aviation emissions on the climate is up to five times the impact of emissions occurring on the ground.
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Scientists are on the verge of decoding the special chemical language that bacteria use to “talk” to each other, British researchers report. That achievement could lead to new treatments for antibiotic-resistant bacteria, including so-called superbugs that infect more than 90,000 people in the United States each year, they note.
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In 2007, researchers were dazzled by the degree to which genomes differ from one human to another and began to understand the role of these variations in disease and personal traits. Science recognize “Human Genetic Variation” as the Breakthrough of the Year, and identify nine other of the year’s most significant scientific accomplishments.
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A model of the James Webb Space Telescope’s Mid-InfraRed Instrument will be tested before Christmas at the Rutherford Appleton Laboratory in Oxfordshire, England to ensure the final instrument can see infrared light.
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