Endogeny (biology)

endogenousendogenicendogenouslyendogenyendogeneouschemical found in many living systemsendegenousendoEndogeneouslyendogenetic
Endogenous substances and processes are those that originate from within a system such as an organism, tissue, or cell.wikipedia
693 Related Articles

Neurotransmitter

neurotransmittersexcitatory neurotransmitterneurotransmitter system
Cell signalling systems such as hormone and neurotransmitter systems use endogenous substances.
Neurotransmitters are endogenous chemicals that enable neurotransmission.

Auto-brewery syndrome

Gut fermentation syndrome
For example, in auto-brewery syndrome, ethanol is endogenously produced within the digestive system through endogenous fermentation of sugars.
Auto-brewery syndrome is a rare medical condition in which intoxicating quantities of ethanol are produced through endogenous fermentation within the digestive system.

Endocannabinoid system

endocannabinoidendocannabinoidsendogenous cannabinoid system
The endocannabinoid system (ECS) is a biological system composed of endocannabinoids, which are endogenous lipid-based retrograde neurotransmitters that bind to cannabinoid receptors, and cannabinoid receptor proteins that are expressed throughout the vertebrate central nervous system (including the brain) and peripheral nervous system.

Circadian rhythm

circadian rhythmscircadiansleep-wake cycle
It can refer to any biological process that displays an endogenous, entrainable oscillation of about 24 hours.

Endogenous regeneration

While the brain has a limited capacity for regeneration, endogenous neural stem cells, as well as numerous pro-regenerative molecules, can participate in replacing and repairing damaged or diseased neurons and glial cells.

Chronobiology

chronobiologistbiological clocksheliobiology
While circadian rhythms are defined as regulated by endogenous processes, other biological cycles may be regulated by exogenous signals.

Opioid

opioidsopioid-induced constipationopioid analgesic

Endorphins

endorphinendorphinebeta endorphins
From the words ἔνδον / éndon meaning "within" (endogenous, ἐνδογενής / endogenes, "proceeding from within") and morphine, from Morpheus, the god of dreams in the Greek mythology, thus 'endo(genous) (mo)rphin’ (morphin being the old spelling of morphine).

Exogeny

exogenousexogenicexogenously
Endogenous substances and processes contrast with exogenous ones, such as drugs, which originate from outside of the organism.
It contrasts with endogeny or endogeneity, the fact of being influenced within a system.

Endogeneity (econometrics)

endogenousendogeneityreverse causality
The distinction between endogenous and exogenous variables originated in simultaneous equations models, where one separates variables whose values are determined by the model from variables which are predetermined; ignoring simultaneity in the estimation leads to biased estimates as it violates the exogeneity assumption of the Gauss–Markov theorem.

Enkephalin

enkephalins[ D -Ala 2 , D -Leu 5 ]enkephalinenkephaline
The other endogenous opioids are dynorphins (that bind to kappa receptors), endorphins (mu receptors), endomorphins, and nociceptin/orphanin FQ.

Organism

organismsflora and faunaliving organisms
Endogenous substances and processes are those that originate from within a system such as an organism, tissue, or cell.

Tissue (biology)

tissuetissuesbiological tissue
Endogenous substances and processes are those that originate from within a system such as an organism, tissue, or cell.

Cell (biology)

cellcellscellular
Endogenous substances and processes are those that originate from within a system such as an organism, tissue, or cell.

Drug

drugsagentserum
Endogenous substances and processes contrast with exogenous ones, such as drugs, which originate from outside of the organism.

Cell signaling

cell signallingsignallingsignaling pathway
Cell signalling systems such as hormone and neurotransmitter systems use endogenous substances.

Hormone

hormoneshormonalprohormone
Cell signalling systems such as hormone and neurotransmitter systems use endogenous substances.

Transcription factor

transcription factorsgene transcription factortranscriptional factors
Endogenous transcription factors are those manufactured by the cell, as distinguished from cloned transcription factors.

Biology

biologicalBiological Sciencesbiologist
Endogeneity can, in some biological systems, particularly with viruses and prokaryotes, pertain to DNA incorporated (endogenized) into the organism.

Virus

virusesviralvirion
Endogeneity can, in some biological systems, particularly with viruses and prokaryotes, pertain to DNA incorporated (endogenized) into the organism. Endogenous viral elements, which are DNA sequences derived from viruses that are ancestrally inserted into the genomes of germ cells.

Prokaryote

prokaryoticprokaryotesprokaryotic cells
Endogeneity can, in some biological systems, particularly with viruses and prokaryotes, pertain to DNA incorporated (endogenized) into the organism.

DNA

deoxyribonucleic aciddouble-stranded DNAdsDNA
Endogeneity can, in some biological systems, particularly with viruses and prokaryotes, pertain to DNA incorporated (endogenized) into the organism.

Homeostasis

homeostaticequilibriumimmunomodulation
However, because of homeostasis, discerning between internal and external influences is often difficult.

Endogenous viral element

DNA remnantsendogenous retroviral elementendogenous viruses
Endogenous viral elements, which are DNA sequences derived from viruses that are ancestrally inserted into the genomes of germ cells.

Nucleic acid sequence

DNA sequencesnucleotide sequencegenetic information
Endogenous viral elements, which are DNA sequences derived from viruses that are ancestrally inserted into the genomes of germ cells.