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Melatonin is a hormone, released primarily by the pineal gland, that regulates the sleep–wake cycle. 3D ball-and-stick model, white background
The three-dimensional structure of proteins is represented in a variety of conformations. This image is based on the ribbon structure of a protein. It is suitable for biology notebooks and book covers.\nThis image has not been created by AI.
The glucagon like peptide-1 receptor (GLPr) is a G proteincoupled receptor (GPCR) that mediates the action of GLP-1, a peptide hormone. The activated receptor  has a strong effect  on the management of type 2 diabetes mellitus and obesity, including glucose homeostasis and regulation of gastric motility and food intake.
A ribbons model of Human Insulin. Isolated on white.
Squalane is a hydrocarbon derived by hydrogenation of squalene. 3d illustration
Digital background depicting innovative technologies in (AI) artificial systems, neural interfaces and internet machine learning technologies
Chemical formula of melatonin
Melatonin skeletal formula and sleeping woman during the night
3D cartoon and Gaussian surface models, chain id color scheme, PDB 7t3a, white background
Endosomes - 3d rendered image of Endosomes are membrane-bound organelles. They are parts of endocytic membrane transport pathway.  Endomembrane system in cells. Bilayer Lipid Membrane. Abstract medical illustration. Microscopic view. Microbiologic research concept.
The calcitonin gene related peptide (yellow) binds to its receptor (blue) on neurons and smooth muscle cells of cerebral blood vessels, activating a signal cascade through G-proteins (dark blue) in this cells that  leads to a dilatation of the blood vessels (vasodilatation).
Covid-19 Coronavirus Variants Omicron Delta Gamma Beta Alpha Pandemic Virus Disease Mutation
Entecavir (Baraclude) molecule structure. Three dimensional model render
Cells in the body examined by endoscope
Nourish hair of shampoo or serum. Repair damaged hair concept, 3d rendering.
medical concept
3D cartoon and Gaussian surface models, chain id color scheme, PDB 3omv, white background
Endosomes - 3d rendered image of Endosomes are membrane-bound organelles. They are parts of endocytic membrane transport pathway.  Endomembrane system in cells. Bilayer Lipid Membrane. Abstract medical illustration. Microscopic view. Microbiologic research concept.
The Raf/MEK/ERK (MAPK) propagates growth signals in the cell. Misregulation can lead to cancer.\nThe red dots on the active EGFR are phosphorylated tyrosines. PDB entries: 1egf, 1nql, 1m17, 2jwa, 3njp, 2gs6, 1gri, 1xd2, 3ksy, 5p21, 6xi7, 6q0j, 2y4i,
Molecular Model of Vitamin E.
Cediranib cancer drug molecule. 3D rendering. Atoms are represented as spheres with conventional color coding.
A molecular model of the flavonoid Quercetin.  An antioxidant and anti-inflamatory, it is used as a nutritional suplement.  It is commonly found in many fruits and vegetables and is a significant chemical component of tea.  Isolated on white.
Linagliptin or Tradjenta is a medication used to treat diabetes mellitus type 2. 3d illustration
Structure of Escherichia Coli
3D cartoon and Gaussian surface models, PDB 6kxs, white background
Endosomes - 3d rendered image of Endosomes are membrane-bound organelles. They are parts of endocytic membrane transport pathway.  Endomembrane system in cells. Bilayer Lipid Membrane. Abstract medical illustration. Microscopic view. Microbiologic research concept.
From left to right: the NMDA and  AMPA receptors transport calcium cations into neurons after being activated by the neurotransmitter glutamate and  the GABA receptor (right) transport chloride anions after the activation by gamma aminobutyrate. PDB entries: 6wht,  3kg2, 6d6u
3d Rendering Molecular Structure,Ozone,Hydrogen and oxygen
Chemical formula of Progesterone. Close-up.
Stem of Nerium indicum T.S. under light mircoscope with white background
Free Images: "bestof:Melatonin SAR structure.jpg Melatonin SAR structure svg en The core structure of primary melatonin receptor agonists own Sigrunmelatonin 2010-10-28 Melatonin"
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