Scientists at La Jolla Institute for Immunology (LJI) have published the first analysis of how four types of COVID-19 vaccines prepare the body to fight SARS-CoV-2. Their in-depth look at how T cells, B cells, antibody levels ...
May 31, 2022
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神经系统与the immune system and regulate inflammation in the body. Researchers at Karolinska Institutet in Sweden now show how electrical activation of a specific nerve can promote healing ...
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Many cancer treatments are notoriously savage on the body; they attack healthy cells at the same time as tumor cells, causing a plethora of side effects. Now, researchers at the University of Chicago's Pritzker School of ...
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Around 48,500 people are diagnosed with lung cancer in the UK each year. New treatments are desperately needed as fewer than 20% of patients survive for five years after diagnosis, and it is the biggest cause of death from ...
May 30, 2022
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In a novel experiment, a woman with advanced pancreatic cancer saw her tumors dramatically shrink after researchers in Oregon turbocharged her own immune cells, highlighting a possible new way to someday treat a variety of ...
Jun 02, 2022
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Viruses are simple in structure: They consist of a small amount of genetic material wrapped in proteins and lipids. Measuring just 20 to 200 nanometers in size, they can only be detected with an electron microscope. Yet their ...
Jun 01, 2022
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Aerobic exercise reprograms the immune system to reduce pancreatic tumor growth and amplify the effects of immunotherapy, a new study finds.
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Acute stress can be detrimental to fighting off infection, especially COVID-19, and increases the chance of dying in mouse models.
May 30, 2022
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A type of white blood cell previously known only as a helper in the immune system appears also to be the instigator of the body's defenses against cancerous tumors. The discovery could lead to more effective cancer immunotherapy, ...
May 31, 2022
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Unless you are an identical twin, you probably aren't often mistaken for someone else. Likewise, our own sense of self as distinct from all other humans is deeply ingrained since early childhood.
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White blood cells(WBCs), orleukocytes(also spelled "leucocytes"), are cells of the immune system defending the body against both infectious disease and foreign materials. Five different and diverse types of leukocytes exist, but they are all produced and derived from a multipotent cell in the bone marrow known as a hematopoietic stem cell. Leukocytes are found throughout the body, including the blood and lymphatic system.
The number of leukocytes in the blood is often an indicator of disease. There are normally between 4×109 and 1.1×1010 white blood cells in a litre of blood, making up approximately 1% of blood in a healthy adult. An increase in the number of leukocytes over the upper limits is called leukocytosis, and in leukopenia, this number is much lower than the lower limit. The physical properties of leukocytes, such as volume, conductivity, and granularity, may change due to activation, the presence of immature cells, or the presence of malignant leukocytes in leukemia.
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