endogenously

NCGC00229600 是促甲状腺激素受体 (TSHR) 的变构反向激动剂。 NCGC00229600 抑制 TSH 和刺激 TSHR 的内源性激活抗体，可用于格雷夫斯病的研究。

Palmitoylethanolamide (Impulsin) 是一种内源性脂肪酸酰胺。它有消炎药、降压药、神经保护剂和抗惊厥药的作用。在给药后，Palmitoylethanolamide 可抑制促炎介质从活化肥大细胞的释放。

(R)-pyrrolidine-2-carboxylic acid (D-Proline) 是天然氨基酸 L -脯氨酸的异构体。D -氨基酸在人类血浆和唾液中含量相对较高。这些氨基酸可能是细菌来源，但也有证据表明它们是通过氨基酸消旋酶活性内源性产生的。

Acetyl-L-carnitine hydrochloride (Acetyl L-carnitine hydrochloride) 是一种由内源性左旋肉碱的乙酰化形式的盐酸盐组成的营养补充剂，具有潜在的神经保护、认知增强、抗抑郁和免疫调节活性。还可缓解化疗、糖尿病或其他疾病引起的周围神经病变。此外，乙酰左旋肉碱可能通过增加T淋巴细胞成熟来调节免疫反应，并可能下调促炎细胞因子对病毒(如SARS-CoV-2)的反应。它还可能破坏ACE2信号通路并抑制活性氧(ROS)的产生。

Isethionic acid sodium salt (Sodium isethionate) 是内源性代谢产物的一种。

5-Aminovaleric acid 被认为是 GABA 的亚甲基同系物，是GABA 的弱激动剂。它是赖氨酸降解产物。 它既能够内源性产生，也能够通过赖氨酸的细菌分解代谢产生。

DPC-AJ1951 is a peptide agonist of the parathyroid hormone (PTH) PTH-related peptide receptor (PPR; EC50 = 0.15 nM in HEK293 cells expressing human PPR). It induces cAMP production in SAOS-2 and UMR106 cells that endogenously express human and rat PPR, respectively (EC50s = 2.2 and 1.1 nM, respectively). DPC-AJ1915 stimulates osteoclast-mediated bone resorption in fetal rat long-bone explant cultures and increases collagen synthesis and cell proliferation in neonatal mouse parietal bone explants. In vivo, DPC-AJ1951 normalizes serum calcium levels in thyroidparathyroidectomized rats.

A6770 is an inhibitor of sphingosine-1-phosphate (S1P) lyase.1It induces accumulation of [3H]sphinganine-1-phosphate ([3H]dhS1P), an S1P lyase substrate, in IT-79MTNC3 cells that endogenously express high levels of S1P lyase (EC50= <0.01 μM), an effect that is reduced in the presence of vitamin B6(EC50= <100 μM). 1.Ohtoyo, M., Tamura, M., Machinaga, N., et al.Scintillation proximity assay to detect the changes in cellular dihydrosphingosine 1-phosphate levelsLipids51(10)1207-1216(2016)

Docosapentaenoic acid (DPA) is a ω-3 fatty acid found in fish oils. 17-oxo-7(Z),10(Z),13(Z),15(E),19(Z)-docosapentaenoic acid is a metabolite of lipoxygenase-mediated oxidation of DPA that is produced endogenously by aspirin-enhanced COX-2 activity. It has been shown to activate Nrf2-dependent antioxidant gene expression, to act as a PPARγ agonist (EC50 = ~200 nM), and to inhibit pro-inflammatory cytokine and nitric oxide production at biological concentration ranges (5-25 μM).

Bilaid C is a tetrapeptide μ-opioid receptor agonist (Ki= 210 nM in HEK293 cell membranes expressing the human receptor) that has been found inPenicillium.1It inhibits forskolin-induced cAMP accumulation by 77% in HEK293 cells expressing the human μ-opioid receptor when used at a concentration of 10 μM. Bilaid C induces inward rectifying potassium channel (Kir) currents in rat locus coeruleus slices that endogenously express high levels of the μ-opioid receptor (EC50= 4.2 μM). 1.Dekan, Z., Sianati, S., Yousuf, A., et al.A tetrapeptide class of biased analgesics from an Australian fungus targets the μ-opioid receptorProc. Natl. Acad. Sci. USA116(44)22353-22358(2019)

Gaxilose, also known as 4-Galactosylxylose, a synthetic disaccharide and a substrate of intestinal lactase. Gaxilose is used in a new noninvasive diagnostic test based on urine or serum measurement of D-xylose after lactase cleavage of orally administered

17-oxo-4(Z),7(Z),10(Z),13(Z),15(E),19(Z)-Docosahexaenoic acid is a metabolite of lipoxygenase-mediated oxidation of DHA that is produced endogenously by aspirin-enhanced COX-2 activity. It has been shown to activate Nrf2-dependent antioxidant gene expression, to act as a PPARγ agonist (EC50 = ~200 nM), and to inhibit pro-inflammatory cytokine and nitric oxide production at biological concentration ranges (5-25 μM).

The acyl amides are a family of endogenous lipids that act as potent modulators of pain and inflammation. The best characterized members of this family are the arachidonoyl amides, which includes N-arachidonoyl ethanolamide (AEA; anandamide). N-palmitoyl glycine (PalGly) contains an 18-carbon saturated fatty acid that is amide-linked to glycine and is structurally similar to the phospholipid-derived N-acyl ethanolamines. Endogenously produced in rat skin and spinal cord, PalGly is present in 100-fold greater amounts in skin and 3-fold greater in brain compared to AEA. Injection of 0.43 μg PalGly in rat hindpaw inhibits heat-induced firing of nociceptive neurons in rat dorsal horn. PalGly treatment induces transient calcium influx in native dorsal root ganglion (DRG) cells and in the PTX-sensitive, DRG-like cell line F-11 (EC50 = 5.5 μM).

N-Acylethanolamines (NAEs) are lipid-derived signaling compounds, with arachidonoyl ethanolamide functioning as an endogenous cannabinoid (CB) that activates CB1 and CB2 receptors. Among these, Palmitoleoyl Ethanolamide (POEA) is synthesized endogenously from palmitoleic acid. Notably, unlike arachidonoyl ethanolamide and palmitoyl ethanolamide, POEA lacks antinociceptive effects in the formalin-evoked pain model.

Resolvins are a family of potent lipid mediators derived from both eicosapentaenoic acid and docosahexaenoic acid . [1] In addition to being anti-inflammatory, resolvins promote the resolution of the inflammatory response back to a non-inflamed state.[2] Resolvin D5 (RvD5) is a DHA-derived resolvin generated by a double dioxygenation mechanism.[3] RvD5 has been identified in media from ionophore-stimulated trout brain cells, in human synovial fluid from patients with rheumatoid arthritis, and in exudates of bacterial infections in mice. [4][5][6] RvD5 stimulates the phagocytosis of E. coli by human macrophages, and RvD5 methyl ester enhances bacterial killing in mice inoculated with E. coli. [6] Analytical and biological comparisons of synthetic RvD5 with endogenously derived RvD5 have confirmed its identity as matching the natural product.[7]

CDN-A为一种环二核苷酸，主要用于抗体-活性分子偶联物(ADC)的合成。作为先天免疫及适应性免疫反应的关键激活剂，环状二核苷酸能由内源性外来DNA或侵入性细菌病原体生成，在人体内通过促进干扰素基因表达激活先天免疫系统。

Somatostatin acetate 是一种内源性分泌的细胞增殖抑制剂，具有潜在的抗肿瘤活性，可用于研究癌症和神经系统疾病。

Anabasine ((S)-Anabasine) 是一种从烟草中提取的生物碱。Anabasine 是一种烟碱乙酰胆碱受体的全激动剂 (nAChRs)，具有杀虫活性。Anabasine 促使内源表达人肌型 nAChRs 的 TE671 细胞去极化。

Lornoxicam-d4 is intended for use as an internal standard for the quantification of lornoxicam by GC- or LC-MS. Lornoxicam is a COX inhibitor and non-steroidal anti-inflammatory drug (NSAID) with anti-inflammatory and analgesic properties. It inhibits production of thromboxane B2 from arachidonic acid in HEL human erythroleukemic cells, which endogenously express COX-1, as well as inhibits LPS-induced formation of prostaglandin F1α from arachidonic acid in Mono-Mac-6 cells, which endogenously express COX-2. Lornoxicam reduces LPS-induced production of nitric oxide and IL-6 in cell-based assays with IC50 values of 65 and 54 µM, respectively. It reduces carrageenan-induced paw edema in rats when administered intravenously at doses ranging from 0.1 to 9 mg kg. Formulations containing lornoxicam have been used in the management of postoperative pain.

Olomoucine II is an inhibitor of cyclin-dependent kinases (CDKs; IC50s = 7.6, 0.1, 19.8, 0.45, and 0.06 μM for Cdk1, -2, -4, -7, and -9, respectively).1It is selective for CDKs over 10 additional kinases (IC50s = >100 μM for all) but does inhibit ERK2 (IC50= 32 μM) and the ATP-binding cassette transporter B1 (ABCB1; IC50= 6.4 μM).1,2Olomoucine II inhibits proliferation of a variety of cancer cells, including those expressing wild-type p53 or mutant p53 (mean IC50s = 7.4 and 10.1 μM, respectively), and it acts synergistically with daunorubicin to inhibit proliferation of HCT-8 cells that endogenously express ABCB1. Olomoucine also inhibits replication of herpes simplex virus 1 (HSV-1), HSV-2, vaccinia virus, human adenovirus type 4 (Ad4), and human CMV (IC50s = 5, 4.7, 3.8, 2.4, and 3.2 μM, respectively) but not measles virus or influenza virus (IC50s = >20 μM for both).3

NCG21 is a GPR120 agonist, which showed potent extracellular signal-regulated kinase (ERK) activation in a cloned GPR120 system. NCG21 potently activated ERK, intracellular calcium responses and GLP-1 secretion in murine enteroendocrine STC-1 cells that e

Resolvins are a family of potent lipid mediators derived from both eicosapentaenoic acid and docosahexaenoic acid.[1] In addition to being anti-inflammatory, resolvins promote the resolution of the inflammatory response back to a non-inflamed state.[2] Resolvin D1 is produced physiologically from the sequential oxygenation of DHA by 15- and 5-lipoxygenase.[1] 17(R)-RvD1 is an aspirin-triggered epimer of RvD1 that reduces human polymorphonuclear leukocyte (PMN) transendothelial migration, the earliest event in acute inflammation, with equipotency to RvD1 (EC50 = ~30 nM).[3] 17(R)-RvD1 exhibits a dose-dependent reduction in leukocyte infiltration in a mouse model of peritonitis with maximal inhibition of ~35% at a 100 ng dose.[3] In contrast to RvD1, the aspirin-triggered form resists rapid inactivation by eicosanoid oxidoreductases. Analytical and biological comparisons of synthetic 17(R)-RvD1 with endogenously derived 17(R)-RvD1 have confirmed its identity as matching the natural product.[4]

Linaprazan glurate 抑制外源性或内源性刺激的胃酸分泌。 Linaprazan glurate 可用于胃肠道炎症性疾病和消化性溃疡疾病的研究。