hsa

Human serum albumin（人血清白蛋白，HSA）是人类血浆中含量最多的蛋白质，在肝脏中产生并且可溶于水，分子量为66.5 kDa。HSA通过选择性结合交叉结构的 A 寡聚体，抑制阿尔茨海默病。HSA是淀粉样蛋白-β （Αβ）聚集的关键内源性抑制剂。HSA在细胞培养中作为载体蛋白，用于运输脂肪酸、类固醇和甲状腺激素，并调节血液的渗透压；还用于药物递送研究、免疫分析和细胞冻存。

DOTA-NHS-ester 是 affibody 分子的接头，应用于小动物 PET、SPECT 和 CT。 它可用于标记放射治疗剂或成像探针以检测肿瘤。

hsa62 是 SIRT1 和 SIRT2 的抑制剂，IC50 分别为 1.3 和 5.5 μM。

EPI-X4（hSA408–423 peptide），一种C-X-C 基序趋化因子受体 4（CXCR4）的拮抗剂，其 IC50 值为 8.6 μM。该化合物能够阻断 CXCL12 介导的信号传导，并有效抑制趋化因子引起的白血病细胞迁移与侵袭。此外，EPI-X4 在小鼠模型中展现了抗炎作用，并对 CXCR4 嗜性 HIV 具有抗病毒活性，同样的 IC50 为 8.6 μM。

OBHSA（Oxabicycloheptane sulfonamide） 是一种新型选择性雌激素受体降解剂 （SERD），可用于研究乳腺癌。

10(R)-PAHSA is a stereoisomer of 10-PAHSA , an endogenous lipid that belongs to a collection of branched fatty acid esters of hydroxy fatty acids (FAHFAs).

10(S)-PAHSA is a stereoisomer of 10-PAHSA , an endogenous lipid that belongs to a collection of branched fatty acid esters of hydroxy fatty acids (FAHFAs).

10-PAHSA is a newly identified endogenous lipid that belongs to a collection of branched fatty acid esters of hydroxy fatty acids (FAHFAs). It is a FAHFA in which palmitic acid is esterified to 10-hydroxy stearic acid. Among the FAHFA family members, PAHSAs are the most abundant in the adipose tissue of glucose tolerant AG4OX mice, which overexpress the Glut4 glucose transporter specifically in adipose tissue. As other FAHFAs improve glucose tolerance, stimulate insulin secretion, and have anti-inflammatory effects, 10-PAHSA may be a bioactive lipid with roles in metabolic syndrome and inflammation.

Branched fatty acid esters of hydroxy fatty acids (FAHFAs) are newly identified endogenous lipids regulated by fasting and high-fat feeding and associated with insulin sensitivity. Structurally, these esters are comprised of a C-16 or C-18 fatty acid (e.g., palmitoleic, palmitic, oleic, or stearic acid) linked to either a C-16 or C-18 hydroxy substituent. 12-PAHSA is a FAHFA in which palmitic acid is esterified at the 12th carbon of hydroxy stearic acid. Among the FAHFA family members, PAHSAs are the most abundant in the adipose tissue of glucose tolerant AG4OX mice, which overexpress the Glut4 glucose transporter specifically in adipose tissue. 12-PAHSA is present at 2- to 3-fold higher levels in adipose tissue of AG4OX mice compared to wild type mice. Levels of 12-PAHSA are also higher in fasted wild-type mice compared to fed mice and are reduced upon high-fat diet-induced obesity in insulin-resistant mice.

9(R)-PAHSA is a stereoisomer of 9-PAHSA , an endogenous lipid that belongs to a collection of branched fatty acid esters of hydroxy fatty acids (FAHFAs).

Branched fatty acid esters of hydroxy fatty acids (FAHFAs) are newly identified endogenous lipids regulated by fasting and high-fat feeding and associated with insulin sensitivity. Structurally, these esters are comprised of a C-16 or C-18 fatty acid (e.g., palmitoleic, palmitic, oleic, or stearic acid) linked to a hydroxylated C-16 or C-18 lipid. 9-PAHSA is a FAHFA in which palmitic acid is esterified to 9-hydroxy stearic acid. PAHSAs are the most abundant forms of FAHFA in serum as well as white and brown adipose tissues of glucose tolerant AG4OX mice, which overexpress Glut4 specifically in adipose tissue. 9-PAHSA is the predominant isomer of PAHSA in wild type and AG4OX mice. It is found in humans and is reduced in the serum and adipose tissues of insulin-resistant humans. 9-PAHSA improves glucose tolerance, stimulates insulin secretion, and has anti-inflammatory effects in mice.

10-OAHSA is a newly discovered endogenous lipid categorized within the group of branched fatty acid esters of hydroxy fatty acids (FAHFAs). This specific FAHFA comprises oleic acid esterified to 10-hydroxy stearic acid. It stands out among its FAHFA counterparts for its potential bioactive properties, similar to other members of its family such as PAHSAs, which are notably prevalent in the adipose tissue of AG4OX mice exhibiting glucose tolerance due to overexpression of the Glut4 glucose transporter specifically in adipose tissue. Like other FAHFAs, 10-OAHSA may play significant roles in enhancing glucose tolerance, stimulating insulin secretion, and exerting anti-inflammatory effects, which suggests its importance in managing metabolic syndrome and inflammation.

10-SAHSA, an endogenous lipid recently discovered, is part of the FAHFAs, a group of branched fatty acid esters of hydroxy fatty acids. It specifically consists of stearic acid esterified to 10-hydroxy stearic acid. Notably, PAHSAs, closely related to 10-SAHSA, are significantly present in the adipose tissue of AG4OX mice that are glucose tolerant due to the overexpression of the Glut4 glucose transporter in their adipose tissue. Similar to other FAHFAs, which are known to improve glucose tolerance, promote insulin secretion, and possess anti-inflammatory properties, 10-SAHSA is considered a potential bioactive lipid with implications for metabolic syndrome and inflammation management.

Branched fatty acid esters of hydroxy fatty acids (FAHFAs) are lipids influenced by dietary changes, playing a crucial role in insulin sensitivity. These compounds typically consist of a C-16 or C-18 fatty acid (for example, palmitoleic, palmitic, oleic, or stearic acid) linked to a hydroxy fatty acid with the same carbon chain length. 13-PAHSA, a derivative where palmitic acid is esterified to 13-hydroxy stearic acid, is notably prevalent in the adipose tissue of glucose-tolerant AG4OX mice, which exhibit enhanced glucose transport via the overexpression of the Glut4 glucose transporter. This observation, along with the metabolic benefits seen from other FAHFAs—including improved glucose tolerance, stimulated insulin secretion, and anti-inflammatory properties—suggests that 13-PAHSA may function as a bioactive lipid beneficial in managing metabolic syndrome and inflammation.

Branched fatty acid esters of hydroxy fatty acids (FAHFAs) are a class of endogenous lipids whose levels are modulated by fasting and high-fat diets, and they play a role in insulin sensitivity. These compounds consist of a fatty acid—either a C-16 or C-18, such as palmitoleic, palmitic, oleic, or stearic acid—esterified to a hydroxylated C-16 or C-18 lipid. One notable FAHFA, 9-PAHSA, features an ester linkage between palmitic acid and 9-hydroxy stearic acid. PAHSAs, with 9-PAHSA being the most prevalent isomer, are significantly found in the serum and both white and brown adipose tissues of glucose-tolerant AG4OX mice, which express the Glut4 gene in adipose tissue, enhancing insulin sensitivity. Additionally, 9-PAHSA is abundant in wild type and AG4OX mice and present in humans, though at reduced levels in those with insulin resistance. 9-PAHSA is associated with improved glucose tolerance, enhanced insulin secretion, and anti-inflammatory effects in mice. The compound 19-PAHSA^13C4 represents an isotopically enriched form of this polyunsaturated fatty acid.

13-SAHSA, a branched fatty acid ester of hydroxy fatty acids (FAHFAs), has been found to be involved in metabolic regulation, particularly in relation to fasting, high-fat feeding, and insulin sensitivity. This compound is a synthesis of stearic acid and 13-hydroxy stearic acid. Notably, 13-SAHSA levels are found to be moderately increased in the serum of AG4OX mice, which are characterized by their glucose tolerance and expression of the Glut4 glucose transporter specifically in their adipose tissue. Similar to other FAHFAs, 13-SAHSA is believed to play a significant role in enhancing glucose tolerance, stimulating insulin secretion, and exerting anti-inflammatory effects, indicating its potential importance in addressing conditions related to metabolic syndrome and inflammation.

13-POHSA (palmitoleic acid esterified to 13-hydroxy stearic acid) is a type of branched fatty acid esters of hydroxy fatty acids (FAHFAs), which have recently been discovered as endogenous lipids whose levels are modulated by fasting and high-fat diets, and are linked to insulin sensitivity in mice. Notably, the concentration of 13-POHSA in the serum significantly increases in glucose tolerant AG4OX mice, a model that overexpresses the Glut4 glucose transporter in adipose tissue, suggesting its physiological relevance. Like other FAHFAs, 13-POHSA is believed to enhance glucose tolerance, promote insulin secretion, and exert anti-inflammatory properties, highlighting its potential importance in managing metabolic syndrome and inflammation.

13-OAHSA, a branched fatty acid ester of hydroxy fatty acids (FAHFAs), results from the esterification of oleic acid to 13-hydroxy stearic acid. It represents a significant component of the FAHFA family, most abundantly expressed in the serum of glucose-tolerant AG4OX mice that exhibit adipose tissue-specific overexpression of the Glut4 glucose transporter. Similar to other FAHFAs which are known to enhance glucose tolerance, stimulate insulin secretion, and exert anti-inflammatory effects, 13-OAHSA may play a pivotal role in managing metabolic syndrome and inflammation.

5-PAHSA, a FAHFA formed through the formal condensation of the carboxy group of palmitic acid with the hydroxy group of 5-hydroxystearic acid, serves as a human metabolite, possesses anti-inflammatory and hypoglycemic properties, and is categorized as a long-chain fatty acid. This compound, deriving from hexadecanoic acid and octadecanoic acid, is the conjugate acid of a 5-PAHSA(1-).

15-SAHSA, a branched fatty acid ester of hydroxy fatty acids (FAHFAs), is recognized for its involvement in metabolic regulation. This compound comprises stearic acid esterified to 5-hydroxy stearic acid and is notably influenced by dietary changes, such as fasting and high-fat consumption, with a link to insulin sensitivity. SAHSA levels are specifically found to be moderately increased in the serum of AG4OX mice, which are characterized by their glucose tolerance through the overexpression of the Glut4 glucose transporter in adipose tissue. Given the established functions of FAHFAs in enhancing glucose tolerance, prompting insulin secretion, and exerting anti-inflammatory properties, 5-SAHSA emerges as a potential bioactive lipid implicated in the management of metabolic syndrome and inflammation.

Branched fatty acid esters of hydroxy fatty acids (FAHFAs), endogenous lipids influenced by fasting and high-fat diets, are linked to improved insulin sensitivity in mice. These molecules consist of a C-16 or C-18 fatty acid (e.g., palmitoleic, palmitic, oleic, or stearic acid) bonded to a C-16 or C-18 hydroxy fatty acid. A specific FAHFA, 5-POHSA, features palmitoleic acid esterified with hydroxy stearic acid at the 5th carbon. Elevated levels of 5-POHSA in the serum of AG4OX mice, which express high levels of the Glut4 glucose transporter in adipose tissue, correlate with glucose tolerance. Like other FAHFAs that enhance glucose tolerance, stimulate insulin secretion, and exhibit anti-inflammatory properties, 5-POHSA may play a role in managing metabolic syndrome and inflammation.

Branched fatty acid esters of hydroxy fatty acids (FAHFAs) are endogenous lipids that are influenced by fasting and high-fat diets and linked to improved insulin sensitivity in mice. These compounds typically feature a chain of either 16 or 18 carbon atoms (for example, palmitoleic, palmitic, oleic, or stearic acid) esterified with a hydroxy fatty acid chain of similar length. One specific FAHFA, known as 5-OAHSA, consists of oleic acid bonded to the fifth carbon of hydroxy stearic acid. Within the FAHFA family, OAHSAs exhibit the highest serum levels in AG4OX mice, which are known for their glucose tolerance attributed to the overexpression of the Glut4 glucose transporter in adipose tissue.

Branched fatty acid esters of hydroxy fatty acids (FAHFAs) are a class of endogenous lipids whose levels are modulated by fasting and high-fat diets and are linked to insulin sensitivity. These compounds typically consist of a C-16 or C-18 fatty acid, such as palmitoleic, palmitic, oleic, or stearic acid, esterified to a hydroxylated C-16 or C-18 lipid. One specific form of FAHFA, known as 9-OAHSA, involves the esterification of oleic acid to 9-hydroxy stearic acid. Within the FAHFA family, OAHSAs notably represent the predominant form found in the serum of glucose-tolerant AG4OX mice, which uniquely overexpress the Glut4 glucose transporter in adipose tissue.

Branched fatty acid esters of hydroxy fatty acids (FAHFAs) are recent discoveries in endogenous lipids that are influenced by dietary changes such as fasting and high-fat diets, showing a link with enhanced insulin sensitivity in mice. These compounds typically feature a C-16 or C-18 fatty acid (e.g., palmitoleic, palmitic, oleic, or stearic acid) bound to a hydroxy group on another C-16 or C-18 fatty chain. A specific FAHFA, 9-POHSA, consists of palmitoleic acid connected at the hydroxy stearic acid’s 9th position. This molecule, in particular, exhibits notably increased levels in the serum of glucose-tolerant AG4OX mice, which express the Glut4 glucose transporter predominantly in their adipose tissue. Given the broader family of FAHFAs' roles in enhancing glucose tolerance, promoting insulin secretion, and exerting anti-inflammatory effects, 9-POHSA emerges as a potential bioactive lipid involved in managing metabolic syndrome and inflammation.