Arthritis & Rheumatism

Common sites of bone erosion in rheumatoid arthritis ID'd on US

(HealthDay)—Joint recesses with bone erosion are more likely to exhibit greater severity of joint inflammation on ultrasound (US) examination, according to a study published online Oct. 25 in the Journal of Clinical Ultrasound.

Health

Dental decay and flavoured water

A laboratory study published in the International Journal of Environment and Health looks at the effects of flavoured mineral water drinks and sugar substitutes on the exogenic erosion of tooth enamel. Given that many more ...

Arthritis & Rheumatism

Elderly-onset rheumatoid arthritis ups bone erosion risk

(HealthDay)—Elderly-onset rheumatoid arthritis (EORA) is a risk factor for bone erosions, even with clinical disease remission, according to a study published in the June issue of the International Journal of Rheumatic ...

Dentistry

Sipping hot fruit teas can lead to tooth erosion

An investigation by scientists at King's College London into why some people suffer tooth erosion while others don't has found that it's not just what they eat and drink, but how they eat and drink, that increases their chances ...

Dentistry

Do girls have stronger teeth than boys?

What if you hardly ever consume soft drinks or eat anything acidic, but still have dental erosion on your teeth? Do genes play a role? And does it matter if you are a boy or a girl?

Arthritis & Rheumatism

New bone chewing role for B cells in rheumatoid arthritis

University of Rochester Medical Center researchers have uncovered a new mechanism of bone erosion and a possible biomarker for rheumatoid arthritis (RA). The group is the first to demonstrate that immune cells, called B cells, ...

Arthritis & Rheumatism

Blocking one receptor could halt rheumatoid arthritis

Researchers at the University of Illinois at Chicago College of Medicine have shown for the first time how the activation of a receptor provokes the inflammation and bone degradation of rheumatoid arthritis—and that activation ...

Arthritis & Rheumatism

Prolactin reduces arthritis inflammation

Inflammatory joint diseases such as rheumatoid arthritis are the result of cartilage damage and loss. Chondrocytes are the only cells that are found in cartilage and their death is linked to decreased cartilage health.

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Erosion

For morphological image processing operations, see Erosion (morphology) For use of in dermatopathology, see Erosion (dermatopathology)

Erosion is the removal of solids (sediment, soil, rock and other particles) in the natural environment. It usually occurs due to transport by wind, water, or ice; by down-slope creep of soil and other material under the force of gravity; or by living organisms, such as burrowing animals, in the case of bioerosion.

Erosion is distinguished from weathering, which is the process of chemical or physical breakdown of the minerals in the rocks, although the two processes may occur concurrently.

Erosion is a noticeable intrinsic natural process but in many places it is increased by human land use. Poor land use practices include deforestation, overgrazing, unmanaged construction activity and road-building. Land that is used for the production of agricultural crops generally experiences a significant greater rate of erosion than that of land under natural vegetation. This is particularly true if tillage is used, which reduces vegetation cover on the surface of the soil and disturbs both soil structure and plant roots that would otherwise hold the soil in place. However, improved land use practices can limit erosion, using techniques such as terrace-building, conservation tillage practices, and tree planting.

A certain amount of erosion is natural and, in fact, healthy for the ecosystem. For example, gravels continuously move downstream in watercourses. Excessive erosion, however, does cause problems, such as receiving water sedimentation, ecosystem damage and outright loss of soil.

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