Dendritic spines, small membranous protrusions emerging from a brain cell's dendrite, help to transmit electrical signals to neurons. These spines can have a variety of different shapes, ranging from so-called "stubby" to ...
(Medical Xpress)—A new study in the US and Germany has added to our understanding of the human cytomegalovirus (HCMV) and how it manipulates the cells it infects.
Cortisol, also commonly known as the stress hormone, belongs to the family of glucocorticoids. In addition to its physiological function, synthetic derivatives of cortisol are also used as anti-inflammatory drugs. In the ...
Mar 26, 2024
0
5
Gut bacteria and a diet rich in the amino acid tryptophan can play a protective role against pathogenic E. coli, which can cause severe stomach upset, cramps, fever, intestinal bleeding and renal failure, according to a study ...
Mar 13, 2024
0
23
Beckman Institute for Advanced Science and Technology researchers Jonathan Sweedler, a professor of chemistry, and Fan Lam, a professor of bioengineering, have outlined how spatial omics technologies can reveal the molecular ...
Mar 5, 2024
0
35
A simple blood test to diagnose Alzheimer's disease soon may replace more invasive and expensive screening methods such as spinal taps and brain scans.
Feb 22, 2024
0
68
University of Waterloo researchers have developed a new blood testing method that can detect potent opioids much faster than traditional approaches and potentially save lives.
Feb 22, 2024
0
37
Investigators led by Elizabeth McNally, MD, Ph.D., the Elizabeth J. Ward Professor of Genetic Medicine and director of the Center for Genetic Medicine, have discovered previously unknown protein interactions in the heart's ...
Jan 17, 2024
0
34
A so-called pathological protein long associated with Parkinson's disease has been found in a new study to trigger cells to increase protein synthesis, an event that eventually kills the subset of brain cells that die off ...
Dec 18, 2023
0
51
Understanding how viruses travel once inside the human body is critical to develop effective drugs and therapies that can stop viruses in their tracks. Scientists at Texas Biomedical Research Institute (Texas Biomed) recently ...
Dec 18, 2023
0
53
Mass spectrometry (MS) is an analytical technique for the determination of the elemental composition of a sample or molecule. It is also used for elucidating the chemical structures of molecules, such as peptides and other chemical compounds. The MS principle consists of ionizing chemical compounds to generate charged molecules or molecule fragments and measurement of their mass-to-charge ratios. In a typical MS procedure:
MS instruments consist of three modules: an ion source, which can convert gas phase sample molecules into ions (or, in the case of electrospray ionization, move ions that exist in solution into the gas phase); a mass analyzer, which sorts the ions by their masses by applying electromagnetic fields; and a detector, which measures the value of an indicator quantity and thus provides data for calculating the abundances of each ion present. The technique has both qualitative and quantitative uses. These include identifying unknown compounds, determining the isotopic composition of elements in a molecule, and determining the structure of a compound by observing its fragmentation. Other uses include quantifying the amount of a compound in a sample or studying the fundamentals of gas phase ion chemistry (the chemistry of ions and neutrals in a vacuum). MS is now in very common use in analytical laboratories that study physical, chemical, or biological properties of a great variety of compounds.
This text uses material from Wikipedia, licensed under CC BY-SA
