Human Oxytocin (OT) ELISA Kit — FAQ for Neuroscience, Social Behavior, and Reproductive Research

Human Oxytocin ELISA Kit: Your Questions Answered

Oxytocin (OT) is a 9-amino-acid cyclic nonapeptide (Cys-Tyr-Ile-Gln-Asn-Cys-Pro-Leu-Gly-NH₂, MW ~1007 Da) synthesized in the hypothalamus and released from the posterior pituitary. It is best known for its roles in parturition (uterine contraction) and lactation (milk ejection), but modern neuroscience has expanded its profile to include social bonding, trust, empathy, maternal behavior, and stress modulation. Oxytocin is also implicated in autism spectrum disorder, postpartum depression, and cardiovascular regulation.

Abbkine's Human Oxytocin (OT) ELISA Kit (KTE62212) provides researchers with a sensitive and specific tool for quantifying this critical neuropeptide in human samples. Here are answers to the most common questions about this kit and oxytocin detection.

What is the detection principle of this oxytocin ELISA kit?

This kit employs a competitive or sandwich ELISA format to quantitate OT in samples. A specific antibody is pre-coated onto the microplate. When standards and samples are added, any OT present binds to the immobilized antibody. After removing unbound substances, a detection reagent is added, followed by a substrate solution. Color development is inversely or directly proportional to the amount of OT bound, and the intensity is measured at the appropriate wavelength.

What sample types can I use?

The kit is validated for cell culture supernatants, serum, plasma, and other biological fluids. This flexibility makes it suitable for both in vitro neuropeptide release studies and clinical translational research.

What is the sensitivity and detection range?

That is sub-picomolar sensitivity — essential because basal plasma oxytocin concentrations sit in the low pg/mL range (typically 1–10 pg/mL), well within the kit's calibration window. Generic OT kits with higher LODs often miss physiological levels entirely.

Does this kit cross-react with vasopressin or other neuropeptides?

No significant cross-reactivity or interference with oxytocin analogues (including vasopressin, which shares a highly similar cyclic nonapeptide structure) has been observed. This specificity is critical given the structural homology between oxytocin and vasopressin.

How should I store and handle the kit?

• Unopened kit: Store at 2–8°C
• Opened kit: Follow protocol-specific storage instructions
• Shipping: Gel pack with blue ice

Critical handling tips:

• Oxytocin is a short-lived peptide — process samples promptly and avoid repeated freeze-thaw cycles
• Extraction protocols may be required for plasma samples to remove interfering binding proteins
• Allow all reagents to warm to room temperature for at least 30 minutes before opening
• Run samples and standards in duplicate or triplicate

What applications is this kit suitable for?

This kit is designed for research use only — not for human or clinical diagnosis. Applications include:

• Social neuroscience (trust, empathy, bonding)
• Reproductive biology (parturition, lactation, maternal behavior)
• Autism spectrum disorder research
• Postpartum depression and maternal mental health studies
• Stress and anxiety research (HPA axis modulation)
• Cardiovascular research (oxytocin's role in blood pressure regulation)
• Psychiatric disorders (schizophrenia, borderline personality disorder)

Why measure oxytocin?

Oxytocin is a multifunctional neuropeptide with expanding research applications:

• It is the primary hormone driving parturition and lactation
• It modulates social cognition and emotional processing
• It influences stress reactivity and anxiety-like behavior
• Oxytocin dysregulation is implicated in autism, depression, and social anxiety

What's included in the kit?

A complete, ready-to-use kit.

📌 Reference Link: Human Oxytocin (OT) ELISA Kit — KTE62212