TSE PhenoMaster_H Advanced Metabolic Caging System
| Brand | TSE Systems |
|---|---|
| Origin | Germany |
| Model | PhenoMaster_H |
| Configuration | Modular, Multi-Channel (up to 256 channels) |
| Gas Sensing | Zirconia O₂ sensor & NDIR CO₂ sensor |
| Flow Control | Independent high-flow controller per cage |
| Measurement Modes | Standard sequential mode & Real-time continuous mode (1 Hz per cage) |
| Data Output | Binary raw data with user-defined sampling frequency |
| Cage Airflow | Configurable PULL/PUSH mode with laminar wall-guided circulation |
| Activity Monitoring | XYZ optical 3D frame |
| Urine/Feces Collection | TSE-engineered hydrophobic umbrella-shaped internal lining |
| Compliance | Designed for GLP-compliant phenotyping studies |
| Software | PhenoMaster Control & Analysis Suite (FDA 21 CFR Part 11–ready audit trail, experimental protocol scheduling, time-synchronized multi-parameter export) |
Overview
The TSE PhenoMaster_H Advanced Metabolic Caging System is a modular, high-fidelity platform engineered for longitudinal, non-invasive assessment of energy metabolism and integrated behavioral physiology in small rodents. Based on the principles of indirect calorimetry—quantifying oxygen consumption (VO₂) and carbon dioxide production (VCO₂) to derive respiratory exchange ratio (RER), energy expenditure (EE), and substrate utilization—the system delivers time-synchronized, cage-level metabolic phenotyping under standardized housing conditions. Unlike conventional single-parameter cages, the PhenoMaster_H integrates gas exchange kinetics with precise behavioral telemetry, enabling researchers to correlate metabolic shifts with spontaneous locomotion, feeding microstructure, circadian activity patterns, and autonomic endpoints. Its architecture supports both acute challenge paradigms (e.g., diet-induced thermogenesis, glucose tolerance testing) and chronic studies spanning weeks or months—critical for modeling progressive metabolic disorders such as obesity, type 2 diabetes, and mitochondrial dysfunction.
Key Features
- Modular expandability: Supports up to 256 independently configurable cages via scalable channel architecture (2/4/6/8/10/12…256-channel configurations).
- Dual-mode gas analysis: Standard sequential sampling (multiplexed gas routing) or real-time continuous monitoring (1 Hz per cage) with dedicated zirconia O₂ and NDIR CO₂ sensors per enclosure.
- High-precision ancillary sensing: Load-cell-based food/water intake (±0.01 g resolution), cage-integrated weight tracking, and XYZ optical 3D activity mapping with zone-specific event logging (rearing, immobility, positional preference, sleep-wake transitions).
- Controlled airflow dynamics: User-selectable PULL or PUSH ventilation; patented double-wall cage lid directs laminar airflow along interior walls to minimize dead volume and ensure rapid gas turnover (<90 s residence time at 1 L/min flow).
- TSE-certified excreta separation cages: Species-specific (mouse/rat) designs featuring hydrophobic, umbrella-shaped internal surfaces to suppress wall adhesion and accelerate urine collection—validated for concurrent RER measurement without cross-contamination.
- Binary raw data acquisition: Continuous timestamped binary streams (configurable sampling interval) stored locally for full traceability, reprocessing, and third-party validation—essential for journal submission and regulatory audits.
Sample Compatibility & Compliance
The PhenoMaster_H accommodates C57BL/6, BALB/c, CD-1, and other common inbred/outbred mouse strains, as well as Sprague-Dawley and Wistar rats. All cage materials comply with ISO 5941-1 (biocompatibility) and EU Directive 2010/63/EU on animal welfare. The system’s hardware and software architecture align with Good Laboratory Practice (GLP) requirements: electronic signatures, role-based access control, immutable audit trails, and 21 CFR Part 11–compliant data integrity protocols are embedded in the PhenoMaster Control Suite. Experimental protocols—including light/dark cycle synchronization, timed nutrient access, and automated stimulus delivery—are programmable and version-controlled to support reproducible, auditable workflows across multicenter studies.
Software & Data Management
The PhenoMaster Control & Analysis Suite provides unified control of all hardware modules, real-time visualization of gas kinetics, activity heatmaps, and feeding bout analytics. It supports hierarchical experimental design (cohort → cage → session → parameter), automated calibration logging, and batch processing of raw binary files into physiologically annotated time-series (e.g., VO₂, VCO₂, EE, RER, ambulatory counts, meal duration/frequency). Export formats include CSV, HDF5, and MATLAB-compatible structures. Integrated statistical modules enable ANOVA, repeated-measures linear mixed modeling, and circadian rhythm analysis (Cosinor, JTK_CYCLE). All data transformations are fully documented with metadata tags (instrument ID, calibration date, operator, environmental log), satisfying FAIR (Findable, Accessible, Interoperable, Reusable) data principles.
Applications
The PhenoMaster_H serves as a core infrastructure tool in preclinical metabolic research: quantifying diet-induced changes in energy partitioning; evaluating pharmacological modulation of brown adipose tissue thermogenesis; assessing circadian misalignment effects on glucose homeostasis; characterizing genetic models of leptin resistance or mitochondrial uncoupling; and validating biomarkers of metabolic inflexibility in aging cohorts. Its capacity for simultaneous multi-parameter acquisition makes it particularly valuable in toxicology (e.g., endocrine disruptor screening), nutritional science (macronutrient preference assays), and behavioral neuroscience (anxiety-related hypometabolism, reward-driven feeding). Published studies using PhenoMaster platforms appear regularly in Cell Metabolism, Diabetes, and Nature Communications.
FAQ
What species and strain sizes are supported?
The system is validated for mice (18–40 g) and rats (200–500 g) using TSE’s species-specific cages and airflow calibrations.
Can the system integrate with third-party telemetry devices?
Yes—via TTL-triggered synchronization and analog/digital I/O ports, enabling coordinated acquisition with implantable ECG, temperature, or blood pressure transmitters.
Is real-time 1 Hz RER measurement available for all cages simultaneously?
Yes—when configured in real-time mode, each cage operates with independent O₂/CO₂ sensors and synchronized timestamping, eliminating multiplexing latency.
How is data security and regulatory compliance ensured?
The software includes ALCOA+ compliant audit trails, electronic signatures, backup encryption, and role-based permissions—fully aligned with FDA 21 CFR Part 11 and EU Annex 11 requirements.
What level of technical support and calibration services does TSE provide?
TSE offers on-site installation, annual performance verification (including gas sensor linearity and flow calibration), remote diagnostics, and GLP-compliant documentation packages upon request.
