• Semi-lunar (pocket) valves are found in the blood vessels leaving the heart (pulmonary artery and aorta). They only allow exit of blood from the heart through these vessels following ventricular contractions. Elastic recoil of these arteries and relaxation of the ventricles closes each semi-...
Here, we review the structure and biology of Aβ, which may constitute a core pathway for the growing number of neuro- degenerative diseases, including Alzheimer's, Parkinson's, and Huntington's diseases, as well as structure-based drug discovery, which may contribute to the development of ...
Comparative genomics of elastin: Sequence analysis of a highly repetitive protein Due to the low complexity associated with their sequences, uncovering the evolutionary and functional relationships in highly repetitive proteins such as e... D He,M Chung,E Chan,... - 《Matrix Biology》 被引量: ...
region fold. Collectively, the inferior pancreatico-duodoenal and first jejunal arteries (on the right) and the middle colic (on the left) marked the junction between the central and peripheral zones of the mid-region fold. The position of each vessel relative to the SMA was then determined...
(that do most of the pumping into the systemic and pulmonary arteries). Atrial andventricular contractionare coordinated so that ventricular contraction only starts upon maximal filling following atrial ejection. Indeed, atria contract upon spreading of action potentials generated at thesinus node, the ...
Various arteries, veins, and lymph nodes provide blood and lymph supply to the breasts. The network of connective tissue and ligaments provide support and shape to the glands. The nipple The nipple is a conical protrusion present at the center of the breast surrounded by a pigmented area of ...
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Phosphorylation of myosin II plays an important role in many cell functions, including smooth muscle contraction. The level of myosin II phosphorylation is determined by activities of myosin light chain kinase and myosin phosphatase (MP). MP is composed of 3 subunits: a catalytic subunit of type ...
The SLC2 genes code for a family of GLUT proteins that are part of the major facilitator superfamily (MFS) of membrane transporters. Crystal structures have recently revealed how the unique protein fold of these proteins enables the catalysis of transport. The proteins have 12 transmembrane spans ...
It can identify most retinal pathologies such as retinal holes and detachments, and opaques in arteries around the heart. Diseases such as diabetic retinopathy, diabetic edema and glaucoma can also be diagnosed. A more detailed description of OCT angiography can be found here [17]. Download: ...