DocCheck News
DocCheck News has published an article

With old age, the loss of the Y chromosome occurs in many leukocytes in men. This phenomenon is a risk factor for getting tumours – and as new evidence indicates for getting Alzheimer's ... [more]

DocCheck News
DocCheck News has published an article

Following the efforts of the WHO's special department in putting processed meats under the microscope, hot drinks are now the topic. Coffee and tea, contrary to earlier judgements, are suddenly ... [more]

Flora Vinbert has published the Flexikon article Muscles of the upper arm
The muscles of the upper arm are the skeletal muscles that form the muscular mass of the upper arm and have a close anatomic relationship with the humerus. They have an effect on the elbow joint (Articulatio cubiti) and/or the shoulder joint ... [more]
Flora Vinbert has published the Flexikon article Triceps brachii muscle
The triceps brachii muscle is a three-headed muscle that belongs to the muscles of the upper arm. The three heads of the muscle are called "Caput longum", "Caput laterale" and "Caput mediale".

Devolution
Origin
Two heads of the triceps brachii ... [more]
Raphael Klinkhammer has edited the Flexikon article Transferase
These enzymes catalyze the transfer of a group (except hydrogen) from one substrate to another substrate.

Reaction
(substrate A)-R + (substrate B)-R --> (substrate A) + (substrate B)-RR=Rest (a group of atoms except hydrogen)

Examples
transaminase, ... [more]
Raphael Klinkhammer has edited the Flexikon article Hydrolase
These enzymes use H2O to catalyze the breaking of a covalent bond.

Examples
phosphatases, esterases, peptidases
Raphael Klinkhammer has edited the Flexikon article Lyase
These enzymes remove a group of a substrate and instead of the removed group they produce a double bond.

Examples
dehydratases, decarboxylases, aldolases, etc
Raphael Klinkhammer has edited the Flexikon article Isomerase
These enzymes transform a substrate in an isomere of the same substrate by relocating just a molecule of a substrate.

Examples
mutases, epimerases, etc.
Raphael Klinkhammer has edited the Flexikon article Ligase
These enzymes link two substrates together. They form a covalent bond but they require energy (ATP).

Examples
carboxylases, synthetases, etc.
Raphael Klinkhammer has published the Flexikon article Gallbladder
The gallbladder serves as a storage organ for up to 30-80 ml of bile. With the withdrawal of water, the bile becomes concentrated and therefore more can be stored.

Anatomy
The gallbladder is pear-shaped and is located at the base of the liver in ... [more]
Cell Image Library published a picture

Image of the Week - July 18, 2016 - CIL:41022 - http://www.cellimagelibrary.org/images/41022

CIL:41022 - http://www.cellimagelibrary.org/images/41022   Description: Sensory axons (long, slender nerve fibers) covering the tail of a 3- day-old larval zebrafish. This "Brainbow" image was collected using confocal microscopy. In the Brainbow ... [more]
MEDICA Tradefair published a video

Cardiology - viewing the beating heart in real-time

To examine the heart with a magnetic resonance imaging system, patients need to hold their breath. Only this way, physicians can get clear pictures. The University Medical Center of Göttingen, Germany, has now succeeded to take pictures of the ... [more]