bone

1. Obtusifolin has antioxidant properties and improves chemically induced diabetes and its complications by modulation of oxidative stress. 2. Obtusifolin suppresses phthalate esters-mediated bone resorption, thus may be a novel anti-breast-cancer bone me

Zerumbone is a natural monocyclic sesquiterpene first isolated from rhizomes of the wild ginger Z. zerumbet.It has also been shown to have anti-oxidant and anti-inflammatory activities, contributing to immunomodulatory and hepatoprotective effects.

Rubone (2'-Hydroxy-2,4,4',5,6'-pentamethoxychalcone), a natural product and a modulator of miR-34a (microRNA-34), upregulates miR-34a expression in a p53-dependent manner, which in turn downregulates the expression of downstream targets Bcl-2, cyclin-D1, CDK6, SIRT1, and FOXP1, thereby inhibiting tumor growth and reversal of hepatocellular carcinoma (HCC) and chemoresistance in prostate cancer.

Derrubone, an isoflavone natural product derived from Derris robusta, is considered an effective Hsp90 inhibitor. It binds strongly to the CTD of Hsp90α and induces the degradation of tau proteins, which may be viewed as a potential treatment approach for Alzheimer's disease (AD).

(-)-Epigallocatechin Gallate (EGCG) is a phenolic antioxidant polyphenol flavonoid found in plants such as green and black tea, which inhibits telomerase and DNA methyltransferase, blocks the activation of EGF receptors and HER-2 receptors, inhibits cellular oxidation, and prevents free radical damage to cells.

(-)-(S)-Equol (4',7-Dihydroxyisoflavan) is an orally bioavailable, non-steroidal estrogen naturally produced by the metabolism of the isoflavonoid daidzein by human intestinal microflora, with potential chemoprotective and estrogen receptor (ER) modulating activities. S-equol preferentially binds to and activates the beta isoform of ER in certain target tissues, while having an antagonistic effect in other tissues. This modulates the expression of ER-responsive genes in a tissue-specific manner. This agent may increase bone mineral density, affect vasomotor symptoms, and may decrease the proliferation rate of susceptible cancer cells. In addition, this agent interferes with the activity of enzymes involved in steroid biosynthesis. S-equol inhibits dihydrotestosterone (DHT) production and may inhibit the proliferation of androgen-driven prostate cancer. S-equol is the biologically active enantiomer while R-equol is essentially inactive and has a weak affinity for alpha-ER.

Astramembrangenin (Cycloastragenol (Astramembrangenin)) is a triterpenoid saponin compound and a hydrolysis product of the main active ingredient in Astragalus membranaceus. Cycloastragenol (CAG) may have a novel therapeutic role in depression

Icariin (Ieariline) belongs to the flavonol glycoside group of natural products, can inhibit PDE5 and PDE4 activity (IC50=432 73.50 μM), is also a PPARα activator. Icariin can increase cardiovascular and cerebrovascular blood flow, promote hematopoiesis, immunity and bone metabolism.

Irinotecan (CPT-11), a derivative of camptothecin, is an inhibitor of DNA topoisomerase I (Topo I). Irinotecan has antitumor activity by preventing DNA strand reattachment through binding to the Topo I complex, resulting in double-stranded DNA breaks and cell death.

ATP (Adenosine triphosphate) provides cellular energy, participates in overall energy balance, and maintains intracellular homeostasis. ATP can act as an extracellular signaling molecule through interactions with specific purinergic receptors to mediate a variety of processes including neurotransmission, inflammation, apoptosis, and bone remodeling.

Soy Isoflavone is extracted from the seeds of leguminous plants. The isoflavones in soybeans are natural phytoestrogens, which have good medicinal value and can reduce the incidence of breast cancer in women, relieve menopausal symptoms, and increase bone density.

Bestatin (Ubenimex) competitively inhibits many aminopeptidases, including B, N and leucine aminopeptidases. Ubenimex is a microbial metabolite and dipeptide with potential immunomodulatory and antitumor activities. Aminopeptidases has been implicated in the process of cell adhesion and invasion of tumor cells. Therefore, inhibiting aminopeptidases may partially attribute to the antitumor effect of ubenimex. This agent also activates T lymphocyte, macrophage, and bone marrow stem cell as well as stimulates the release of interleukin-1 and -2, thus further enhances its antitumor activity.

Imperatorin (8-Isopentenyloxypsoralene) is a modulator of p38, ERK pathway. Imperatorin increases BMP-2 expression (mRNA) and increases bone density volume and mineralization in vivo.

L-Leucine ((S)-Leucine) is one of nine essential amino acids in humans (provided by food), L-Leucine is important for protein synthesis and many metabolic functions. L-Leucine contributes to regulation of blood-sugar levels; growth and repair of muscle and bone tissue; growth hormone production; and wound healing. L-Leucine also prevents breakdown of muscle proteins after trauma or severe stress and may be beneficial for individuals with phenylketonuria. L-Leucine is available in many foods and deficiency is rare.

3-(3-Hydroxyphenyl)propionic Acid (m-Hydroxyphenylpropionic acid) is one of the major metabolites of ingested caffeic acid.it inhibited osteoclastogenesis and bone osteoclastic resorptive activity.

Batilol (Stearyl monoglyceride), isolated from shark liver oil, is also present in yellow bone marrow of animals and has been described as an inflammatory agent.

Methyl vanillate is Hovenia Dulcis Thunb extract and its ingredient methyl vanillate activate Wnt β-catenin pathway and increase bone mass in growing or ovariectomized mice. Methyl vanillate is considered to be a slightly soluble (in water) acidic compound. Methyl vanillate can be synthesized from vanillic acid. Methyl vanillate has been identified in foods such as cow's milk and beer.

Raloxifene hydrochloride (LY156758 hydrochloride) is a second generation selective estrogen receptor modulator (SERM) used to prevent osteoporosis in postmenopausal women. It has estrogen agonist effects on bone and cholesterol metabolism but behaves as a complete estrogen antagonist on mammary gland and uterine tissue.

Tetracycline hydrochloride (NCI-c55561) is the hydrochloride salt of the tetracycline, a broad-spectrum naphthacene antibiotic produced semisynthetically from chlortetracycline, an antibiotic isolated from the bacterium Streptomyces aureofaciens. In bacteria, tetracycline blocks binding of aminoacyl-tRNA to the mRNA-ribosome complex, thereby inhibiting protein synthesis and bacterial cell growth. Because naturally, fluorescing tetracycline binds to a newly formed bone at the bone osteoid interface, tetracycline-labeling of bone and fluorescence microscopy may be used to perform bone histomorphometry.

Cimicifugoside H1 shows the protective function to cerebral neuron during cerebral ischemia.

1. Pristimerin (Celastrol methyl ester) has anticancer activity , treatment with Pristimerin may be a potential strategy for the suppression of hypoxia-induced metastasis through the reversal of hypoxia-induced stem cell characteristics and EMT in cancer cells. 2. Pristimerin down-regulates the expression of pro-inflammatory mediators through blocking of NF-κB activation by inhibiting interconnected ROS IKK NF-κB signaling pathways, can effectively inhibit both arthritic inflammation and cartilage and bone damage in the joints.

Paeonolide is a phytoglycoside widely found in the roots of plants of the genus Paeonia and is a novel regulator of the core binding factor subunit alpha-1 in bone-forming cells.

Icariside I (Lcariside I) is isolated from Epimedium herb. It can stimulate osteogenic differentiation of BMSCs and inhibit bone resorption activity of osteoclasts.

Calcitriol (1,25-Dihydroxyvitamin D3) is a metabolite of vitamin D and a vitamin D receptor (VDR) agonist (IC50=0.4 nM). Calcitriol increases intestinal absorption of calcium and phosphorus, and increases bone resorption with parathyroid hormone.