These developments are excellent news since it's estimated that vertebrate populations have fallen by an average of 69 percent in less than 50 years, with far-reaching consequences for the planet. In France, where they are listed as a protected species, their number has increased to 921 from 783 in 2021, according to the French Biodiversity Agency. Meanwhile, wild tiger numbers have turned out to be 40 percent higher worldwide than previously estimated and their population appears to be increasing, the International Union for Conservation of Nature (IUCN) announced in July. However, scientists were also able to observe the opposite phenomenon in 2022, with some endangered species coming back.Īlmost 50 years after researchers lost track of the Anatolian leopard, one was spotted in Turkey in May. We all too regularly see headlines about wildlife disappearing, a worrying sign of the biodiversity crisis.
This parasitic disease, transmitted by the Tsetse fly, threatens at least 60 million people in 36 African countries and is fatal if left untreated. More than 55 million people suffer from dementia around the world, with Alzheimer's disease the most common form.Įlsewhere, a drug known as acoziborole could help eradicate sleeping sickness by 2030, according to data published in The Lancet medical journal. Unfortunately, lecanemab also causes side effects, some of them serious, so longer clinical trials are needed to be sure that the benefits of treatment outweigh the risks. A drug called lecanemab was found to slow the cognitive decline of patients by 27 percent.
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The results of a large-scale clinical trial published in the New England Journal of Medicine in late November were hailed as a breakthrough on Alzheimer's research.
Timothy Rittman, University of Cambridge, AFP Photo This undated image shows an MRI image of a healthy brain (L) and an Alzheimer's brain (R) with large black gaps where the brain has shrunk.
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