Accelerating Obesity Drug Discovery with the ob/ob Leptin-Deficient Mouse Model
Obesity Preclinical Contract Research Solutions
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Accelerating Obesity Drug Discovery with the ob/ob Leptin-Deficient Mouse Model

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Ace Therapeutics is a dedicated preclinical contract research provider specializing in obesity research. Our commitment lies in designing and executing rigorous, scientifically driven studies using established animal models to support early-stage drug discovery. One of our core service offerings involves the utilization of the ob/ob Mouse Model, a well-recognized genetic model of leptin-deficient obesity. This model is instrumental in simulating key aspects of metabolic dysregulation, providing a robust platform for evaluating potential therapeutic interventions in obesity research.

Why Choose the ob/ob Mouse Model?

The ob/ob Mouse Model is characterized by a mutation in the leptin gene, leading to a state of leptin deficiency. This genetic alteration results in hyperphagia, marked weight gain, and metabolic disturbances that mimic several aspects of human obesity. By leveraging this model, researchers can gain valuable insights into the pathophysiology of obesity and explore the underlying mechanisms contributing to metabolic dysfunction.

Key advantages of the ob/ob Mouse Model include:

  • Genetic Relevance: The model's inherent leptin deficiency closely mirrors conditions seen in certain obesity phenotypes, enabling targeted evaluation of drug candidates.
  • Metabolic Characterization: ob/ob mice exhibit pronounced weight gain, insulin resistance, and altered lipid metabolism, offering a comprehensive view of obesity-related metabolic disturbances.
  • Research Versatility: This model is widely applicable across various study designs, including investigations into pharmacodynamics, pharmacokinetics, and dose-response relationships.

Fig 1. Liver glucose metabolism in the ob/ob mouse model.Fig.1. Liver glucose metabolism in the Lep ob/ob (ob/ob) obesity and type II diabetes mouse model. (Williams, H. C. et al. 2020)

Comprehensive Preclinical Services with the ob/ob Mouse Model

Ace Therapeutics designs studies to address your specific research objectives, ensuring alignment with therapeutic mechanisms and regulatory expectations.

Custom Study Design

  • Genetic Validation: Confirm homozygous leptin deficiency via genotyping.
  • Dosing Strategies: Prophylactic/therapeutic regimens to mimic clinical scenarios.
  • Endpoint Flexibility: Tailored timelines for weight, glucose, or lipid tracking.

Metabolic & Physiological Profiling

  • Energy Balance: Food intake monitoring, indirect calorimetry, and locomotor activity.
  • Adipose Tissue Analysis: Histopathology, adipokine profiling (e.g., leptin, adiponectin).
  • Systemic Effects: Oral glucose tolerance tests (OGTT), insulin tolerance tests (ITT), serum lipid panels.

Advanced Analytical Support

  • Multiparametric Data Integration: Correlate PK profiles with PD outcomes.
  • Biomarker Discovery: Identify novel markers linked to leptin signaling or metabolic improvement.
  • Statistical Rigor: Advanced analytics to highlight dose-response relationships and therapeutic windows.

DIO Model Validation Data

Below is a summary of key model validation data for the DIO Mouse Model, outlining observed changes in critical metabolic and physiological parameters that confirm its effectiveness in mimicking obesity phenotypes:

Parameter Observed Change Validation Notes
Weight Gain Significant increase relative to controls Consistent weight gain attributed to hyperphagia
Adiposity Marked increase in fat mass Quantifiable through imaging and post-study analysis
Glucose Tolerance Impaired compared to lean controls Reflects metabolic dysfunction typical of obesity
Insulin Sensitivity Reduced sensitivity observed Indicative of the insulin resistance seen in leptin deficiency
Serum Lipids Elevated cholesterol and triglycerides Critical for assessing dyslipidemia

Note: Values and observations are averages derived from multiple validation studies and can vary based on experimental conditions.

Explore Additional Preclinical Obesity Models

Therapeutic Applications Supported by the ob/ob Model

Our services facilitate the evaluation of diverse therapeutic modalities:

  • Appetite Modulators: GLP-1 analogs, neuropeptide Y (NPY) inhibitors.
  • Mitochondrial Activators: AMPK agonists, β3-adrenergic receptor agonists.
  • Adipose-Targeted Agents: Browning-inducing compounds, lipolysis enhancers.
  • Combination Therapies: Dual-target approaches to address multifactorial obesity pathways.

Why Choose Ace Therapeutics?

  • We design studies that align with your specific research objectives, ensuring that experimental protocols are precisely tailored to your needs.
  • Our laboratory is equipped with cutting-edge imaging and analytical technologies to provide comprehensive assessments of metabolic and physiological endpoints.
  • Our multidisciplinary team brings extensive experience in preclinical obesity research, ensuring that all studies are executed with the highest level of scientific rigor.
  • We view every project as a collaborative effort, working closely with our clients to optimize experimental design and data interpretation.

Frequently Asked Questions (FAQ) About ob/ob Mouse Model

What distinguishes the ob/ob mouse model from other obesity models?

The ob/ob mouse lacks functional leptin, leading to spontaneous obesity without dietary manipulation. This genetic model is ideal for studying leptin-independent pathways and severe metabolic dysfunction.

How does the ob/ob Mouse Model benefit preclinical studies?

This model provides an in vivo platform that closely mimics aspects of leptin-deficient obesity observed in humans. Its well-characterized metabolic profile allows researchers to evaluate the efficacy and safety of potential therapeutic compounds in a controlled environment.

How does Ace Therapeutics ensure study relevance to human obesity?

We focus on translational endpoints such as glucose homeostasis, lipid metabolism, and adipose tissue biology—key factors in human obesity. Our protocols are designed to mirror clinical dosing and therapeutic scenarios.

Can you accommodate studies combining the ob/ob model with other interventions?

Yes. We design studies integrating genetic models with dietary or pharmacological challenges to evaluate combination therapies or multifactorial mechanisms.

What types of studies can Ace Therapeutics conduct using the ob/ob Mouse Model?

Our services encompass a broad range of preclinical studies, including metabolic assessments, dose-response evaluations, and detailed biochemical and histopathological analyses. We tailor each study to address specific research questions and experimental endpoints.

Reference

  1. Williams, H. C., et al. (2020). Oral Gavage Delivery of Stable Isotope Tracer for In Vivo Metabolomics. Metabolites. 10(12), 501.
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