LY 288513

CAS# 147523-65-7

LY 288513

Catalog No. BCC5772----Order now to get a substantial discount!

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Chemical structure

LY 288513

3D structure

Chemical Properties of LY 288513

Cas No. 147523-65-7 SDF Download SDF
PubChem ID 2802894 Appearance Powder
Formula C22H18BrN3O2 M.Wt 436.3
Type of Compound N/A Storage Desiccate at -20°C
Solubility Soluble to 100 mM in DMSO and to 100 mM in ethanol
Chemical Name (4S,5R)-N-(4-bromophenyl)-3-oxo-4,5-diphenylpyrazolidine-1-carboxamide
SMILES C1=CC=C(C=C1)C2C(N(NC2=O)C(=O)NC3=CC=C(C=C3)Br)C4=CC=CC=C4
Standard InChIKey LMUQHXHWJWQXSD-PMACEKPBSA-N
Standard InChI InChI=1S/C22H18BrN3O2/c23-17-11-13-18(14-12-17)24-22(28)26-20(16-9-5-2-6-10-16)19(21(27)25-26)15-7-3-1-4-8-15/h1-14,19-20H,(H,24,28)(H,25,27)/t19-,20-/m0/s1
General tips For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.
We recommend that you prepare and use the solution on the same day. However, if the test schedule requires, the stock solutions can be prepared in advance, and the stock solution must be sealed and stored below -20℃. In general, the stock solution can be kept for several months.
Before use, we recommend that you leave the vial at room temperature for at least an hour before opening it.
About Packaging 1. The packaging of the product may be reversed during transportation, cause the high purity compounds to adhere to the neck or cap of the vial.Take the vail out of its packaging and shake gently until the compounds fall to the bottom of the vial.
2. For liquid products, please centrifuge at 500xg to gather the liquid to the bottom of the vial.
3. Try to avoid loss or contamination during the experiment.
Shipping Condition Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other couriers with RT, or blue ice upon request.

Biological Activity of LY 288513

DescriptionSelective CCK2 receptor antagonist (IC50 values are 16 and > 30,000 nM for CCK2 and CCK1 respectively). Displays anxiolytic and antipsychotic properties in vivo.

LY 288513 Dilution Calculator

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Preparing Stock Solutions of LY 288513

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 2.292 mL 11.46 mL 22.92 mL 45.84 mL 57.3 mL
5 mM 0.4584 mL 2.292 mL 4.584 mL 9.168 mL 11.46 mL
10 mM 0.2292 mL 1.146 mL 2.292 mL 4.584 mL 5.73 mL
50 mM 0.0458 mL 0.2292 mL 0.4584 mL 0.9168 mL 1.146 mL
100 mM 0.0229 mL 0.1146 mL 0.2292 mL 0.4584 mL 0.573 mL
* Note: If you are in the process of experiment, it's necessary to make the dilution ratios of the samples. The dilution data above is only for reference. Normally, it's can get a better solubility within lower of Concentrations.

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References on LY 288513

Clinical and immunohistochemical performance of lyophilized platelet-rich fibrin (Ly-PRF) on tissue regeneration.[Pubmed:28192870]

Clin Implant Dent Relat Res. 2017 Jun;19(3):466-477.

BACKGROUND: Platelet-rich fibrin (PRF) has been widely used in oral implantology and other fields, but benefits of the fresh PRF (FPRF (fresh platelet-rich fibrin)) were consequently limited because of its short-term application. Thus, a protocol for the combination of PRF and lyophilization comes up in the present study to address the issue of PRF storage and delayed clinical application, which has little been reported in this field at home and abroad by now. PURPOSE: The aim of the present study was to evaluate the applicability of lyophilized platelet-rich fibrin (Ly-PRF) used as the scaffold material for craniofacial tissue regeneration and to compare its biochemical properties with commonly used fresh PRF. MATERIALS AND METHODS: Two volunteers with both genders were selected as the source of PRF and Ly-PRF samples. Macro- and micro-scopic appearance evaluation as well as immunohistochemical comparison were performed on PRF samples before and after freeze-drying at -196 degrees C. The second experimental phase was to observe clinical performance when fresh and lyophilized PRF were applied in guided bone regeneration (GBR) operations in 39 patients losing teeth in the anterior maxillary region who required an oral implantation followed by labial bone grafting. RESULTS: The conventional histological and transmission electron microscopy images showed the microstructure of Ly-PRF, which resembled a mesh containing apparently irregularly shaped platelets with less alpha-granule than fresh PRF in micro and a translucent membrane with less elasticity than fresh PRF in macro. Simultaneous immunohistological staining results showed positive expression of PDGF-BB, IL-1, IL-4, TNF, TGF-beta1 in both fresh and lyophilized PRF, while the expression of PDGF-BB, IL-1, TNF, TGF-beta1 has no statistical difference between them (P > .05) but that of IL-4 in Ly-PRF is statistically higher than in fresh PRF (P < .05). When applied in GBR operations, there were no significant differences between Ly-PRF and FPRF in factors of histological and clinical evaluations (i.e., color, swelling, bleeding of the mucosa, pain leveland, and remodeling of hard tissue) performed 3 days, 7 days, and 4 months after the surgery (P > .05). CONCLUSIONS: This study strongly supports that lyophilization at -196 degrees C does not largely influence the expression of bioactive factors, the microstructure of fibrinogen or the clinical effects of PRF.

Expansion of CD11b(+)Ly-6C(+) myeloid-derived suppressor cells (MDSCs) driven by galectin-9 attenuates CVB3-induced myocarditis.[Pubmed:28110209]

Mol Immunol. 2017 Mar;83:62-71.

Galectin-9 is known to play a role in the modulation of innate and adaptive immunity to ameliorate CVB3-induced myocarditis. In the present study, we found that galectin-9 induced the expansion of CD11b(+)Ly-6C(+) myeloid-derived suppressor cells (MDSCs) in the heart from CVB3-infected mice. Adoptive transfer of CD11b(+)Ly-6C(+) MDSCs significantly alleviated myocarditis accompanied by increased Th2 and Treg frequency and anti-inflammatory cytokines expression in the heart tissue. Moreover, Ly6C(+) MDSCs, but not Ly6G(+) cells, expressed Arg-1 and NOS2, and suppressed CD4(+) T cell proliferation in vitro in an Arg-1-dependent mechanism; an event that was reversed with treatment of either an Arg-1 inhibitor or addition of excess l-arginine. Furthermore, Ly6C(+) MDSCs co-expressed higher levels of F4/80, Tim-3, and IL-4Ralpha, and had the plasticity to up-regulate NOS2 or Arg-1 in response to IFN-gamma or IL-4 treatment. The present results indicate that galectin-9 expands CD11b(+)Ly-6C(+) MDSCs to ameliorate CVB3-induced myocarditis.

Assessment of roles for the Rho-specific guanine nucleotide dissociation inhibitor Ly-GDI in platelet function: a spatial systems approach.[Pubmed:28148498]

Am J Physiol Cell Physiol. 2017 Apr 1;312(4):C527-C536.

On activation at sites of vascular injury, platelets undergo morphological alterations essential to hemostasis via cytoskeletal reorganizations driven by the Rho GTPases Rac1, Cdc42, and RhoA. Here we investigate roles for Rho-specific guanine nucleotide dissociation inhibitor proteins (RhoGDIs) in platelet function. We find that platelets express two RhoGDI family members, RhoGDI and Ly-GDI. Whereas RhoGDI localizes throughout platelets in a granule-like manner, Ly-GDI shows an asymmetric, polarized localization that largely overlaps with Rac1 and Cdc42 as well as microtubules and protein kinase C (PKC) in platelets adherent to fibrinogen. Antibody interference and platelet spreading experiments suggest a specific role for Ly-GDI in platelet function. Intracellular signaling studies based on interactome and pathways analyses also support a regulatory role for Ly-GDI, which is phosphorylated at PKC substrate motifs in a PKC-dependent manner in response to the platelet collagen receptor glycoprotein (GP) VI-specific agonist collagen-related peptide. Additionally, PKC inhibition diffuses the polarized organization of Ly-GDI in spread platelets relative to its colocalization with Rac1 and Cdc42. Together, our results suggest a role for Ly-GDI in the localized regulation of Rho GTPases in platelets and hypothesize a link between the PKC and Rho GTPase signaling systems in platelet function.

Short-term dabigatran interruption before cardiac rhythm device implantation: multi-centre experience from the RE-LY trial.[Pubmed:28339794]

Europace. 2017 Oct 1;19(10):1630-1636.

Aims: Cardiac implantable electronic device (CIED) surgery is commonly performed in patients with atrial fibrillation (AF). The current analysis was undertaken to compare peri-operative anticoagulation management, bleeding, and thrombotic events in AF patients treated with dabigatran vs. warfarin. Methods and results: This study included 611 patients treated with dabigatran vs. warfarin who underwent CIED surgery during the RE-LY trial. Among 201 warfarin-treated patients, warfarin was interrupted a median of 144 (inter-quartile range, IQR: 120-216) h, and 37 (18.4%) patients underwent heparin bridging. In dabigatran-treated patients (216 on 110 mg bid and 194 on 150 mg bid), the duration of dabigatran interruption was a median of 96 (IQR: 61-158) h. Pocket hematomas occurred in 9 (2.20%) patients on dabigatran and 8 (3.98%) patients on warfarin (P = 0.218). The occurrence of pocket hematomas was lower with dabigatran compared with warfarin with heparin bridging (RD: -8.62%, 95% CI: -24.15 to - 0.51%, P = 0.034) but not when compared with warfarin with no bridging (P = 0.880). Ischemic stroke occurred in 2 (0.3%) patients; one in the warfarin group (without bridging) and one in the dabigatran 150 mg bid group (P = 0.735). Conclusion: In patients treated with dabigatran undergoing CIED surgery, interruption of dabigatran is associated with similar or lower incidence of pocket hematoma, when compared with warfarin interruption without or with heparin bridging, respectively. Whether uninterrupted dabigatran can reduce pocket hematoma or ischemic stroke remains to be evaluated.

Central nervous system characterization of the new cholecystokininB antagonist LY288513.[Pubmed:8866946]

Pharmacol Biochem Behav. 1996 Mar;53(3):493-502.

The activity of LY288513, an investigational cholecystokinin (CCK)B antagonist, was evaluated in a wide range of pharmacological tests in mice and rats. The anxiolytic benzodiazepine, diazepam, served as a reference standard for LY288513 in many of the tests. In the elevated plus-maze, LY288513 (3, 10 mg/kg, IP; 10, 30 mg/kg, PO) produced an anxiolytic-like action in mice with a magnitude of effect similar to that of diazepam. However, unlike diazepam, LY288513 produced no overt clinical signs and did not affect muscle tone, neuromuscular coordination, or sensorimotor reactivity. Also, in contrast to diazepam, LY288513 did not produce changes in the thresholds for electroshock- or pentylenetetrazol-induced convulsions. High doses of LY288513 (1000 mg/kg, PO) were required to reduce spontaneous activity levels, decrease body temperature, or potentiate the CNS-depressant effects of hexobarbital. LY288513 had no analgesic activity in mouse writhing or tail-flick tests. Electrophysiological studies in anesthetized rats showed that acute administration of LY288513 decreased the number of spontaneously active dopamine neurons in the substantia nigra and ventral tegmental area. However, LY288513 did not produce catalepsy. These data indicate that LY288513 possess both anxiolytic and antipsychotic potential.

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