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Long spined sea urchins underwater on seabed of the Caribbean sea

Surprising culprit found that killed 95% of a sea urchin population

19 April 2023

A parasitic microorganism with tiny hair-like structures over its body called a ciliate appears to be behind the mass die-off of long-spined sea urchins across the Caribbean


Probiotics shield corals from deadly tissue loss disease

6 April 2023

A bacterial treatment for coral stopped or slowed 68 per cent of infections with stony coral tissue loss disease in the lab, and it prevented the spread of the disease as well


Naegleria fowleri amoeba

Man in Florida killed by rare, brain-eating amoeba Naegleria fowleri

3 March 2023

The Florida Department of Health announced this week that a man in the state has died after being infected by a microbe that damages brain tissue


Rheumatoid arthritis of the hands. Coloured bilateral X-ray of the hands and wrists of a patient with rheumatoid arthritis. The arthritis is particularly severe in the hand at right, with several joint deformities. Rheumatoid arthritis is a degenerative autoimmune disease that mainly affects the capsule (synovium) around the synovial (flexible) joints, causing chronic inflammation. It can be a debilitating and painful condition and can lead to deformities and loss of functioning and mobility.

A Silent Fire review: What you need to know about inflammation

18 January 2023

With A Silent Fire, gastroenterologist Shilpa Ravella offers a fascinating primer on the crucial role of inflammation in our bodies and the emerging links to diet and disease


X-rays have diagnosed nine people with pneumonia of an unknown origin in the Tucumán province of northwestern Argentina

What we know about the mysterious pneumonia in Argentina

2 September 2022

Three people have died this week due to a pneumonia outbreak of unknown origin in the Tucumán province of northwestern Argentina


Dead pink footed goose

Conservationists warn spread of bird flu is wiping out UK seabirds

10 June 2022

A strain of H5N1 avian influenza has now found its way into UK seabird populations, which are of global importance and at particular risk because of their low reproductive rates


A light micrograph of plaques in someone with lupus

Discovery of a genetic cause of lupus could lead to new treatments

27 April 2022

Scientists sequenced the DNA of a 7-year-old girl with severe lupus, which suggests mutations to the gene TLR7 may cause the autoimmune condition


Nerve demyelination. Coloured transmission electron micrograph (TEM) of a section through a Schwann cell and a nerve fibre, showing the early collapse of its myelin sheath. Myelin (red) is an insulating fatty layer that surrounds the nerve fibre (axon, orange), increasing the speed at which nerve impulses travel. It is formed when a Schwann cell (green) wraps around the fibre, depositing layers of myelin between each coil. Demyelination occurs in nerve disorders such as multiple sclerosis (MS). Patches (lesions) of myelin sheath are destroyed and nerve function is impaired. Magnification: x3800 when printed 10 centimetres wide.

MS reversed by transplanted immune cells that fight Epstein-Barr virus

11 April 2022

In a small trial, immune cells that fight the Epstein-Barr virus have stopped the progression of multiple sclerosis, an autoimmune condition that can lead to symptoms, such as difficulty walking, that worsen over time


A coloured MRI scan of a healthy two-year-old's brain

Map of how our brain changes with age could help diagnose diseases

6 April 2022

Using more than 123,000 MRI scans from over 101,000 humans - from a 16.5-week fetus to 100 year olds - scientists have mapped how our brain changes throughout our life


Lake Hazen base camp on Ellesmere Island

Climate change linked to risk of viruses jumping species in the Arctic

27 August 2021

Climate change may increase the risk of viruses infecting new hosts in the Arctic, suggests a study of genetic material from an Arctic lake


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