L-cystine is the L-enantiomer of the sulfur-containing amino acid cystine. It has a role as an EC 1.2.1.11 (aspartate-semialdehyde dehydrogenase) inhibitor, a flour treatment agent, a mouse metabolite, a Saccharomyces cerevisiae metabolite and a human metabolite. It is a cystine, a non-proteinogenic L-alpha-amino acid and a L-cysteine derivative. It is a conjugate acid of a L-cystine anion. It is an enantiomer of a D-cystine. It is a tautomer of a L-cystine zwitterion. L-Cystine can improve hyperlipidemia by restoring LPL and HSL activities.L-Cystine protects against the toxicity of PQ by maintaining reduced glutathione levels in the cells. Co-administration of l-cystine and l-theanine before vaccination may enhance the immune response to influenza vaccine in elderly subjects with low serum total protein or hemoglobin.

L-lysine is an L-alpha-amino acid; the L-isomer of lysine. It has a role as a micronutrient, an anticonvulsant, a nutraceutical, a mouse metabolite, a Saccharomyces cerevisiae metabolite, a plant metabolite, an Escherichia coli metabolite, a human metabolite and an algal metabolite. It is a L-alpha-amino acid, an aspartate family amino acid, a lysine and a proteinogenic amino acid. It is a conjugate base of a L-lysinium(1+). It is a conjugate acid of a L-lysinate. Lysine is an essential amino acid for the human body. L-lysine and L-glutamic acid and as useful building blocks for the preparation of bifunctional DTPA-like ligands.

Saikogenin D possesses a dual effect: an inhibition of A23187-induced PGE2 production without a direct inhibition of cyclooxygenase activity; and an elevation of [Ca2+]i that is attributed to Ca2+ release from intracellular stores. Saikogenin D has immunomodulatory effect, it can attenuate IL-6 production in LPS-stimulated alveolar macrophages of B6 more than in that of BALB.

Aloin is a diastereoisomeric mixture of aloin A (barbaloin) and aloin B (isobarbaloin), which have similar properties. It is a bitter-tasting, yellow-brown colored compound found in the exudate of at least 68 Aloe species at levels of up to 6.6% of leaf dry weight (making between 3% and 35% of the total exudate), and in another 17 species at indeterminate levels. It is used as a stimulant-laxative, treating constipation by inducing bowel movements. It has a role as a laxative and an EC 1.14.18. Aloe components (aloin, aloesin and aloe-gel) show anti-inflammatory effects, they can ameliorate intestinal inflammatory responses in a dextran sulfate sodium (DSS)-induced ulcerative colitis rat model. Aloin shows tyrosinase activity, it could be used as lightening agents in the treatment of hyperpigmentation disorders and cosmetic additives. Aloin is a potent proapoptotic agent, it showed a pronounced antiproliferative effect at physiological concentration (IC50 = 97 microM), caused cell cycle arrest in the S phase and markedly increased HeLaS3 cell apoptosis (to 24%). Aloin (Aloin-A; Barbaloin-A) is a natural anti-tumor anthraquinone glycoside with iron chelation activity. Aloin induces differentiation of MC3T3-E1 cells into osteoblasts through the MAPK mediated Wnt and Bmp signaling pathways. Alkaline phosphatase (ALP) is an early marker of osteoblast differentiation, and its activity is also enhanced by Aloin. Aloin can alleviate brain edema, reduce blood-brain barrier damage, and improve cortical shock injury. Aloin can be used for research on osteoporosis and traumatic brain injury (TBI).