Significant first-pass metabolism in the liver. Approximately 50% of S-Adenosylmethionine (SAMe) is metabolized in the liver. SAMe is metabolized to S-adenosylhomocysteine, which is then metabolized to homocysteine. Homocysteine can either be metabolized to cystathionine and then cysteine or to methionine. The cofactor in the metabolism of homocysteine to cysteine is vitamin B6. Cofactors for the metabolism of homocysteine to methionine are folic acid, vitamin B12 and betaine.
S-Adenosylmethionine (SAMe) is a natural substance present in the cells of the body. It is a direct metabolite of the essential amino acid L-methionine. SAMe plays a crucial biochemical role in the body by donating a one-carbon methyl group in a process called transmethylation. SAMe, formed from the reaction of L-methionine and adenosine triphosphate catalyzed by the enzyme S-adenosylmethionine synthetase, is the methyl-group donor in the biosynthesis of both DNA and RNA nucleic acids, phospholipids, proteins, epinephrine, melatonin, creatine and other molecules.
来源:Toxin and Toxin Target Database (T3DB)
毒理性
致癌物分类
对人类不具有致癌性(未被国际癌症研究机构IARC列名)。
No indication of carcinogenicity to humans (not listed by IARC).
◉ Summary of Use during Lactation:SAM-e (S-adenosylmethionine) is a naturally occurring methyl radical donor involved in enzymatic transmethylation reactions in humans and animals. SAM-e has no specific lactation-related uses, but it has been used therapeutically for treating postpartum depression, cholestatic jaundice, osteoarthritis and numerous other conditions. SAM-e has poor oral bioavailability. SAM-e is generally well tolerated in adults. The most frequent adverse effects reported are gastrointestinal, such as nausea. Skin rashes have also been reported. No information is available on the clinical use of SAM-e during breastfeeding. However, use of SAM-e by a nursing mother would not be expected to cause any adverse effects in breastfed infants, especially if the infant is older than 2 months.
Dietary supplements do not require extensive pre-marketing approval from the U.S. Food and Drug Administration. Manufacturers are responsible to ensure the safety, but do not need to prove the safety and effectiveness of dietary supplements before they are marketed. Dietary supplements may contain multiple ingredients, and differences are often found between labeled and actual ingredients or their amounts. A manufacturer may contract with an independent organization to verify the quality of a product or its ingredients, but that does not certify the safety or effectiveness of a product. Because of the above issues, clinical testing results on one product may not be applicable to other products. More detailed information about dietary supplements is available elsewhere on the LactMed Web site.
◉ Effects in Breastfed Infants:Relevant published information was not found as of the revision date.
◉ Effects on Lactation and Breastmilk:Relevant published information was not found as of the revision date.
S-Adenosylmethionine is absorbed from the small intestine following oral intake. As absorption is affected by food, it is best to take on an empty stomach. Bioavailability is low following oral intake.
[EN] TARGETED DELIVERY AND PRODRUG DESIGNS FOR PLATINUM-ACRIDINE ANTI-CANCER COMPOUNDS AND METHODS THEREOF<br/>[FR] ADMINISTRATION CIBLÉE ET CONCEPTIONS DE PROMÉDICAMENTS POUR COMPOSÉS ANTICANCÉREUX À BASE DE PLATINE ET D'ACRIDINE ET MÉTHODES ASSOCIÉES
申请人:WAKE FOREST SCHOOL OF MEDICINE
公开号:WO2013033430A1
公开(公告)日:2013-03-07
Acridine containing cispiaiin compounds have been disclosed that show greater efficacy against cancer than other cisplatin compounds. Methods of delivery of those more effective eisp!aiin compounds to the nucleus in cancer ceils is disclosed using one or more amino acids, one or more sugars, one or more polymeric ethers, C i^aikylene-phenyl-NH-C(0)-R.15, folic acid, av03 iniegriii RGD binding peptide, tamoxifen, endoxifen, epidermal growth factor receptor, antibody conjugates, kinase inhibitors, diazoles, triazol.es, oxazoies, erlotinib, and/or mixtures thereof; wherein R]§ is a peptide.
[EN] FLAVIN DERIVATIVES<br/>[FR] DÉRIVÉS DE LA FLAVINE
申请人:BIORELIX PHARMACEUTICALS INC
公开号:WO2010019208A1
公开(公告)日:2010-02-18
The present invention relates novel flavin derivatives and other flavin derivatives, their use and compositions for use as riboswitch ligands and/or anti-infectives. The invention also provides method of making novel flavin derivatives.
[EN] AMINE-LINKED C3-GLUTARIMIDE DEGRONIMERS FOR TARGET PROTEIN DEGRADATION<br/>[FR] DÉGRONIMÈRES DE C3-GLUTARIMIDE LIÉS À UNE AMINE POUR LA DÉGRADATION DE PROTÉINES CIBLES
申请人:C4 THERAPEUTICS INC
公开号:WO2017197051A1
公开(公告)日:2017-11-16
This invention provides amine-linked C3-glutarimide Degronimers and Degrons for therapeutic applications as described further herein, and methods of use and compositions thereof as well as methods for their preparation.
[EN] PRMT5 INHIBITORS CONTAINING A DIHYDRO- OR TETRAHYDROISOQUINOLINE AND USES THEREOF<br/>[FR] INHIBITEURS DE LA PRMT5 CONTENANT UNE DIHYDRO- OU TÉTRAHYDRO-ISOQUINOLÉINE ET LEURS UTILISATIONS
申请人:EPIZYME INC
公开号:WO2014100730A1
公开(公告)日:2014-06-26
Described herein are compounds of Formula (A), pharmaceutically acceptable salts thereof, and pharmaceutical compositions thereof. Compounds of the present invention are useful for inhibiting PRMT5 activity. Methods of using the compounds for treating PRMT5- mediated disorders are also described.
Described herein are compounds of Formula (I), pharmaceutically acceptable salts thereof, and pharmaceutical compositions thereof. Compounds of the present invention are useful for inhibiting PRMT5 activity. Methods of using the compounds for treating PRMT5-mediated disorders are also described.