1. GPCR/G Protein Neuronal Signaling
  2. Orexin Receptor (OX Receptor)
  3. Orexin A (human, rat, mouse) acetate

Orexin A (human, rat, mouse) acetate  (Synonyms: Hypocretin-1 (human, rat, mouse) acetate)

Cat. No.: HY-106224B Purity: 99.67%
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Orexin A (Hypocretin-1) (human, rat, mouse) acetate is a hypothalamic neuropeptide with analgesic properties (crosses the blood-brain barrier). Orexin A (human, rat, mouse) acetate binds and activates two types of G protein-coupled receptors, the orexin-1 receptor (OX1R) and the orexin-2 receptor (OX2R). Orexin A (human, rat, mouse) acetate can be used in studies of appetite regulation, neurodegenerative diseases and modulation of injurious messaging.

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Based on 11 publication(s) in Google Scholar

Other Forms of Orexin A (human, rat, mouse) acetate:

Top Publications Citing Use of Products

    Orexin A (human, rat, mouse) acetate purchased from MedChemExpress. Usage Cited in: CNS Neurosci Ther. 2024 Nov;30(11):e70096.  [Abstract]

    Orexin A (human, rat, mouse) treatment attenuates hippocampal neuronal damage after CLP. Intranasal administration of 250 μg/kg of Orexin A (human, rat, mouse) drug, 2.5 μL per nostril, and 5.0 μL per mouse was used in this experiment. TUNEL staining showing neuronal apoptosis and quantification of TUNEL (green) with DAPI (blue) in the CA1 area of the hippocampus 7 days after CLP.

    Orexin A (human, rat, mouse) acetate purchased from MedChemExpress. Usage Cited in: Research (Wash D C). 2024 May 31:7:0384.  [Abstract]

    Schematic illustration of the effect of different concentrations of Orexin A (human, rat, mouse) on inflammatory factors expression in BV2. In addition, the mRNA expression of TNF-α, IL-6, IL-1β, and inducible nitric oxide synthase (iNOS) in different groups.

    Orexin A (human, rat, mouse) acetate purchased from MedChemExpress. Usage Cited in: J Neuroinflammation. 2024 May 17;21(1):131.  [Abstract]

    Treatment with 250 µg/kg Orexin A (human, rat, mouse) increases 7-day survival. Orexin A (human, rat, mouse) was administered at 250 µg/kg, 30 min after CLP induction, in a volume of 2.5 µl per nostril (5.0 µl per mouse).

    Orexin A (human, rat, mouse) acetate purchased from MedChemExpress. Usage Cited in: J Neuroinflammation. 2024 May 17;21(1):131.  [Abstract]

    Treatment with 250 µg/kg Orexin A (human, rat, mouse) ameliorates cognitive and affective deficits in CLP-induced sepsis. Time in the central zone and distance of activity in the open field. Orexin A (human, rat, mouse) was administered at 250 µg/kg, 30 min after CLP induction, in a volume of 2.5 µl per nostril (5.0 µl per mouse).

    Orexin A (human, rat, mouse) acetate purchased from MedChemExpress. Usage Cited in: J Neuroinflammation. 2024 May 17;21(1):131.  [Abstract]

    Orexin A (human, rat, mouse) reduces inflammation by decreasing Rras expression and impeding activation of the RAS/MAPK pathway.

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    Description

    Orexin A (Hypocretin-1) (human, rat, mouse) acetate is a hypothalamic neuropeptide with analgesic properties (crosses the blood-brain barrier). Orexin A (human, rat, mouse) acetate binds and activates two types of G protein-coupled receptors, the orexin-1 receptor (OX1R) and the orexin-2 receptor (OX2R). Orexin A (human, rat, mouse) acetate can be used in studies of appetite regulation, neurodegenerative diseases and modulation of injurious messaging[1][2][3][4].

    IC50 & Target

    OX1 Receptor

     

    OX2 Receptor

     

    In Vitro

    Orexin A (human, rat, mouse) acetate (0.1, 1, 10, 100 nM; 24 h) increases the expression of BDNF in SH-SY5Y human dopaminergic neuroblastoma cells in a dose-dependent manner[1].
    Orexin A (human, rat, mouse) acetate (1 nM; 1, 3, 6, 12, 24 h) increases the expression of BDNF, TH, and PI3K in a time-dependent manner in SH-SY5Y cells[1].

    MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

    Western Blot Analysis[1]

    Cell Line: SH-SY5Y cells
    Concentration: 0.1, 1, 10, 100 nM
    Incubation Time: 24 h
    Result: Increased the expression of PI3K and TH in a dose-dependent manner.
    Significantly induced BDNF expression at the dose of 1 and 10 nM.

    Western Blot Analysis[1]

    Cell Line: SH-SY5Y cells
    Concentration: 1 nM
    Incubation Time: 1, 3, 6, 12, 24 h
    Result: Showed the expression of PI3K rapidly increased by 72.6 % as soon as 3 h, which maintained at high levels in the following 24 h.
    Increased the protein level of BDNF and the increased rate was 44.8%, and the protein level of TH significantly increased at 12 h by 48.5%.
    In Vivo

    Orexin A (human, rat, mouse) acetate (300 ng/mouse; i.c.v.; single daily for 8 days) attenuates the loss of dopaminergic neurons and the decrease of tyrosine hydroxylase (TH) expression in the substantia nigra, normalized the striatal dopaminergic fibers, and prevents the depletion of dopamine and its metabolites in the striatum[1].
    Orexin A (human, rat, mouse) acetate (10, 30 mg/kg; i.v.; single) shows to be analgesic in the carrageenan-induced thermal hyperalgesia model and PPQ-induced mouse abdominal constriction model[2].

    MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

    Animal Model: Male C57BL/6 mice (10-week-old; 22-26 g; MPTP-Induced Mouse Model of PD)[1].
    Dosage: 300 ng/mouse
    Administration: Intracerebroventricular injection; single daily for 8 days
    Result: Reversed MPTP-induced motor impairments via OX1R and increased the protein expression of BDNF in nigral dopaminergic neurons.
    Improved MPTP-induced impairments in spatial Learning and memory and protected dopaminergic neurons against MPTP-induced neurotoxicity.
    Attenuated the reduction of dopaminergic neurons in the substantia nigra and restored the reduction of dopaminergic fibers in the striatum.
    Animal Model: Female ICR mice (17-28 g; carrageenan-induced thermal hyperalgesia model)[2].
    Dosage: 10, 30 mg/kg
    Administration: Intravenous injection; single; 5 min pre-test
    Result: Increased paw withdrawal latency to the thermal stimulus back to baseline levels.
    Animal Model: Male ICR mice (17-20 g; phenyl-p-quinone (PPQ)-induced mouse abdominal constriction model)[2].
    Dosage: 3, 10, 30 mg/kg
    Administration: Intravenous injection; single; given immediately before PPQ
    Result: Increased the latency to the first PPQ-induced constriction from 357.4 s (blank control group) to 500.3 s at 10 mg/kg and 594.5 s at 30 mg/kg.
    Molecular Weight

    3561.10 (free base)

    Formula

    C152H243N47O44S4.xC2H4O2

    Appearance

    Solid

    Color

    White to off-white

    Sequence

    {Glp}-Pro-Leu-Pro-Asp-Cys-Cys-Arg-Gln-Lys-Thr-Cys-Ser-Cys-Arg-Leu-Tyr-Glu-Leu-Leu-His-Gly-Ala-Gly-Asn-His-Ala-Ala-Gly-Ile-Leu-Thr-Leu-NH2 (Disulfide bridge: Cys6-Cys12, Cys7-Cys14)

    Sequence Shortening

    {Glp}-PLPDCCRQKTCSCRLYELLHGAGNHAAGILTL-NH2 (Disulfide bridge: Cys6-Cys12, Cys7-Cys14)

    Shipping

    Room temperature in continental US; may vary elsewhere.

    Storage

    Sealed storage, away from moisture and light, under nitrogen

    Powder -80°C 2 years
    -20°C 1 year

    *In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light, under nitrogen)

    Solvent & Solubility
    In Vitro: 

    H2O : ≥ 50 mg/mL

    *"≥" means soluble, but saturation unknown.

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    This product has good water solubility, please refer to the measured solubility data in water/PBS/Saline for details.
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    Help & FAQs
    • Do most proteins show cross-species activity?

      Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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    Product Name:
    Orexin A (human, rat, mouse) acetate
    Cat. No.:
    HY-106224B
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