DSIP

Research Reagent · Laboratory Use Only

What does current research show about Delta Sleep-Inducing Peptide (DSIP)?

Delta Sleep-Inducing Peptide (DSIP) is a neuropeptide first isolated in 1974 from rabbit cerebral perfusate. Research published in PubMed-indexed journals indicates roles in sleep modulation, stress response attenuation, and neuroendocrine regulation. Studies suggest it may influence cortisol and LH secretion, though robust human clinical trials remain limited.

Scientific AbstractPMID 39798527 · 2025

Although multi-modality neuroimages have advanced the early diagnosis of Alzheimer's Disease (AD), missing modality issue still poses a unique challenge in the clinical practice. Recent studies have tried to impute the missing data so as to utilize all available subjects for training robust multi-modality models. However, these studies may overlook the modality-specific information inherent in multi-modality data, that is, different modalities possess distinct imaging characteristics and focus on different aspects of the disease.

In this paper, we propose a domain-specific information preservation (DSIP) framework, consisting of modality imputation stage and status identification stage, for AD diagnosis with incomplete multi-modality neuroimages. In the first stage, a specificity-induced generative adversarial network (SIGAN) is developed to bridge the modality gap and capture modality-specific details for imputing high-quality neuroimages. In the second stage, a specificity-promoted diagnosis network (SPDN) is designed to promote the inter-modality feature interaction and the classifier robustness for identifying disease status accurately.

Extensive experiments demonstrate the proposed method significantly outperforms state-of-the-art methods in both modality imputation and status identification tasks.

Mechanistic Research SummaryCurated from PubMed

This data is for laboratory research purposes only. Not for human or animal consumption.

What is DSIP (Domain-Specific Information Preservation)?

DSIP is a computational framework designed to diagnose Alzheimer's Disease (AD) from incomplete multi-modality neuroimaging datasets by preserving modality-specific information during data imputation and disease status classification. The framework addresses the clinical challenge of missing imaging modalities while maintaining the distinct diagnostic value of each imaging type.

Mechanism of Action

DSIP operates through a two-stage pipeline. The first stage employs a Specificity-Induced Generative Adversarial Network (SIGAN) to impute missing neuroimages while bridging the modality gap and capturing modality-specific details unique to each imaging technique (e.g., MRI, PET, fMRI). The second stage utilizes a Specificity-Promoted Diagnosis Network (SPDN) to enhance inter-modality feature interaction and classifier robustness, enabling accurate disease status identification while preserving the diagnostic contributions of each modality rather than homogenizing them into a single representation.

Observed Laboratory Results

  • Superior imputation fidelity: SIGAN generates high-quality neuroimages that preserve modality-specific imaging characteristics, outperforming standard generative models that overlook modality-distinct features.

  • Enhanced diagnostic accuracy: SPDN achieves significantly improved Alzheimer's Disease classification performance compared to state-of-the-art methods by promoting inter-modality feature interaction rather than treating modalities as redundant data sources.

  • Robust incomplete-data handling: The framework successfully leverages all available subjects in training cohorts despite missing modality data, increasing statistical power and model generalization across heterogeneous clinical populations.

Clinical Research Parameters
4 human studies

The following data represents formally registered clinical research studies and peer-reviewed human subject research indexed in public registries. All dose ranges, endpoints, and observations below reflect published study parameters — not recommendations. For research reference only.

All data presented on this page is for laboratory research purposes only. DSIP is referenced here as a research reagent. This page does not constitute medical advice, clinical guidance, or endorsement of any compound for human or animal use. All referenced studies are available via PubMed (PMID: 39798527) and the DOI-linked journal publication. Researchers must consult applicable institutional and regulatory frameworks before conducting any protocols.