NORMAL guinea pig serum is the most common source of complement for the complement-fixation test, and may be used fresh or, more commonly, preserved either by freeze-drying or by Richardson's method 1 ...

Complement component 3, often called C3, is an essential protein of the immune system. This protein plays a vital role in the body’s innate immune system, providing the first line of defense against ...

C3G and IC-MPGN can be difficult to diagnose because they are so rare and their symptoms are vague and nonspecific. A kidney biopsy is considered the gold standard and usually needed to confirm the ...

You tell yourself you’re just really into them. That this is what real connection feels like. Still, you notice—with a mix of excitement and unease—how often your thoughts drift their way. You check ...

The quest for immortality may seem the preserve of Greek myth or science fiction – or the Silicon Valley super-rich – but it seems to be affecting ordinary people, too. Longevity Fixation Syndrome is ...

A complement C4 (also known as a complement component 4, or simply C4) is a test to measure the level of C4 proteins you have in your blood. These proteins play a role in how your immune system ...

The University of Washington basketball team takes a road trip on Friday night that every college entry should envy. The Huskies get on a bus and go 4.8 miles across town, from Alaska Airlines Arena ...

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Serra, Guarini et al. 1 suggested in 1958 a peculiar complement-fixation test as a very selective serological technique for identifying the blood sera of carriers of malignant tumours. You have full ...

Oral fixation may occur if a person’s needs are not met during a specific stage of childhood development, according to a theory introduced by psychoanalyst Sigmund Freud. Oral fixations include habits ...

Nitrogen is essential for all life on Earth. In the global oceans, however, this element is scarce, and nitrogen availability is therefore critical for the growth of marine life. Some bacteria found ...