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Animal Histopathology Service
Introduction
Facing bottlenecks in animal model validation or complexities in non-GLP preclinical trials? BioVenic's comprehensive Animal Histopathology Service offers an integrated workflow-from expert necropsy and precision embedding to advanced multiplex staining and quantitative digital analysis. We specialize in validating disease models and evaluating drug efficacy and safety using histology, IHC, and molecular pathology. Partner with us to streamline your research with clear morphological insights and standardized pathology reporting.
Our Services
Expert Sampling and Histological Preparation Services
BioVenic provides high-quality processing for a wide range of animal species and tissue types. Whether you require routine paraffin embedding (FFPE), cryosectioning for sensitive epitopes, or specialized techniques for gastrointestinal staining, our laboratory utilizes techniques to minimize artifacts and preserve tissue architecture to the greatest extent possible.
Explore BioVenic's investigative modalities:
- Animal Behavioral Analysis
- Preclinical Animal Pharmacodynamics (PD) Study
- Preclinical Animal Pharmacokinetics (PK) Study
- Animal Cell Biology Service
- Animal Imaging Service
Comprehensive Histological Staining Services
To visualize complex tissue transformations and pathological features, BioVenic offers an expansive library of staining methods. Our platforms are designed to reduce inter-batch variability.
Table. 1 Technical Guide: Routine and Special Staining Protocols
| Staining Method | Recommended Specimen Types | Target Components & Structures | Primary Preclinical Applications |
|---|---|---|---|
| H&E Staining | Paraffin (FFPE) or Frozen Sections | Nuclei (Blue); Cytoplasm/Extracellular Matrix (Pink/Red) | General Morphology: Fundamental assessment of tissue architecture, inflammation, necrosis, and tumor grading. |
| Oil Red O | Frozen Sections Only (Fixed or Fresh) | Neutral Lipids and Lipid Droplets (Red) | Metabolic Studies: Evaluation of hepatic steatosis (NAFLD/NASH models) and atherosclerotic plaque lipid content. |
| Safranin O-Fast Green | Decalcified Bone, Joint, or Cartilage Sections | Cartilage Matrix (Red); Bone/Background (Green) | Orthopedic Research: Assessment of cartilage degradation in osteoarthritis models and bone repair efficacy. |
| Masson's Trichrome | Paraffin (FFPE) Sections | Collagen Fibers (Blue); Muscle/Cytoplasm/RBCs (Red) | Fibrosis Evaluation: Quantitative analysis of collagen deposition in heart, liver, lung, or skin fibrosis models. |
| ATPase Staining | Fresh Frozen Sections (Unfixed) | Enzyme activity sites (Black/Dark Brown) | Neuromuscular Research: Differentiation of Type I and Type II muscle fibers; assessment of muscular atrophy. |
| Giemsa Staining | Blood Smears, Bone Marrow, Lymphoid Tissue | Blood cells, Parasites, Mast cell granules | Hematotoxicity: Evaluation of blood cell morphology, parasitic infection, or mast cell-mediated allergic responses. |
| Van Gieson (VG) | Paraffin (FFPE) Sections | Collagen Fibers (Red); Muscle Fibers (Yellow) | Vascular Research: Differentiation of collagen vs. smooth muscle in vascular remodeling and skin studies. |
| Elastic Staining | Paraffin (FFPE) Sections | Elastic Fibers (Black/Deep Purple) | Cardiovascular Studies: Visualization of elastic lamina integrity or fragmentation in arterial walls. |
| Reticulin Staining | Paraffin (FFPE) Sections | Reticular Fibers (Black) | Hepatology & Oncology: Assessment of liver lobule framework and tumor stroma/basement membrane integrity. |
| PAS (Periodic Acid-Schiff) | Paraffin (FFPE) Sections | Glycogen, Mucins, Fungi, Basement Membrane (Magenta) | Renal & Digestive Studies: Visualization of glomerular basement membranes and goblet cell depletion. |
| Crystal Violet | Cell Slides or Brain Sections | Nuclei, Nissl bodies, Bacteria | Microbiology/Cytology: Rapid assessment of cell morphology or detection of localized bacterial infection. |
| Congo Red | Paraffin (FFPE) Sections | Amyloid Fibrils (Orange-Red; Apple-green under polarized light) | Neurodegeneration: Detection of amyloid-beta plaques in Alzheimer's disease and other amyloidosis models. |
| Alcian Blue | Paraffin (FFPE) Sections | Acidic Mucopolysaccharides (Blue) | Mucin Research: Evaluation of goblet cell secretion, mucinous tumors, and cartilage matrix composition. |
| Sudan Staining | Frozen Sections | Lipids and Neutral Fats (Black or Orange) | Lipid Profiling: Identification of total lipid content within various tissue compartments. |
| Warthin-Starry | Paraffin (FFPE) Sections | Spirochetes, H. pylori, Melanin (Black) | Microbiology: Specialized detection of bacteria that are difficult to visualize with routine stains. |
| Toluidine Blue | Paraffin or Resin Sections | Mast cell granules, Cartilage matrix, Nissl bodies | Immunology & Neuroscience: Mast cell counting (allergy/inflammation) and visualization of neuronal Nissl substance. |
Immunohistochemistry (IHC) Services
BioVenic offers robust IHC services to localize protein expression within its native tissue context. Our laboratory maintains a library of antibodies for key markers of cell proliferation (Ki67), apoptosis (Caspase-3), and inflammation. For novel targets, we provide systematic antibody optimization to achieve a high signal-to-noise ratio specific to your animal species and tissue type.
Immunofluorescence (IF) Detection Services
For studies requiring the simultaneous detection of multiple biomarkers, BioVenic's IF services utilize multispectral imaging to observe co-localization on a single section. This is highly effective for characterizing spatial protein expression or immune cell infiltration. Our scanning services provide high-resolution digital files that facilitate detailed analysis.
Morphological and Pathological Analysis
BioVenic's scientific team performs detailed evaluations of tissue alterations, such as hypertrophy, necrosis, and inflammatory patterns. By integrating protein expression data with structural changes, we provide a comprehensive view of the biological response. Our analysis includes quantitative histomorphometry-measuring lesion areas, vessel density, and positive cell ratios-ensuring that qualitative observations are supported by objective, measurable data.
Animal Histopathology Service Workflow
What You Get: High-Resolution Insights & Deliverables
To ensure your preclinical studies are data-rich and decision-ready, BioVenic provides a structured suite of deliverables across our histology, IHC, and digital pathology platforms. We transform raw tissue into quantifiable biological insights.
Stage 1 - Tissue Processing & Routine Histology
- Expertly Processed Samples: High-quality FFPE blocks or OCT-embedded frozen sections tailored to specific downstream applications (e.g., bone decalcification or unfixed muscle for ATPase).
- Standard Morphological Assessment: Professionally stained H&E slides providing a foundational overview of tissue architecture, inflammation, and tumor grading.
- Technical Optimization Report: Documentation of fixation, embedding, and sectioning parameters to ensure inter-batch consistency.
Stage 2 - Specialized Staining & Biomarker Localization
- Special Stain Library: Access to 15+ validated protocols (Masson's Trichrome, PAS, Oil Red O, Congo Red, etc.) for targeted visualization of lipids, fibers, pathogens, and metabolic deposits.
- Validated IHC/IF Assays: Optimized staining for key markers (Ki67, Caspase-3, CD-series) or custom antibody optimization for novel targets with high signal-to-noise ratios.
- Multiplex Fluorescence Maps: (For IF) High-resolution images showing co-localization of multiple biomarkers, ideal for characterizing immune cell infiltration or spatial protein expression.
Stage 3 - Quantitative Analysis & Digital Pathology
- High-Resolution Digital Slides: Whole-slide imaging (WSI) files compatible with major viewing platforms, facilitating remote review and long-term data archiving.
- Histomorphometric Data: Objective, measurable datasets including lesion area ratios, vessel density, positive cell counts/percentages, and more (e.g. glomerular basement membrane thickness).
- Pathologist's Narrative: A comprehensive interpretation of morphological changes (hypertrophy, necrosis, fibrosis) integrated with protein expression data.
Stage 4 - Comprehensive Study Package
- Formal Pathology Report: A document synthesizing qualitative observations and quantitative data into a biological conclusion.
- Raw Data & Metadata: Complete datasets of all measurements and a comprehensive QC package ensuring the integrity of every slide produced.
Case Study: Histopathological Evaluation of NASH & Perisinusoidal Fibrosis
BioVenic provides a non-alcoholic steatohepatitis (NASH) model induced by specialized high-TFA and high-sugar diets, optimized for tracking disease pathogenesis and therapeutic response. We deliver comprehensive H&E staining services to quantify macrovesicular steatosis and inflammatory infiltration, complemented by specialized Sirius Red and Masson's Trichrome stainings to precisely measure collagen deposition and perisinusoidal fibrosis. To assess cellular dynamics, our platform integrates IHC analysis for alpha-SMA and F4/80, monitoring hepatic stellate cell activation and macrophage recruitment.
Fig. 1 Liver steatosis and inflammation status1
Advantages of BioVenic Animal Histopathology Service
Technical Versatility
We combine necropsy support with a library of validated histological stains. This helps detect subtle changes in various organ systems.
Tailored Study Designs
Every research project is unique. Our team optimizes fixation, sectioning, and staining to match your study goals.
Consistency & Reproducibility
We use automated stainers and digital scanners to ensure low variation and high consistency, which supports reliable statistical results.
End-to-End Support
Our services simplify the process from animal sampling to final data output, reducing the need for multiple service providers.
FAQs
Can one sample be used for both molecular and histological analysis?
It's best to do split-sampling at necropsy, but we can also recommend special fixatives that keep both details and molecular integrity intact.
Do we need to bring our own antibodies for IHC?
We have a solid collection of validated antibodies for different species. But if you have specific targets or your own antibodies, you can definitely use your own. In such cases, we offer comprehensive antibody optimization and validation services.
How are the service fees structured?
Our transparent pricing model typically includes specimen reception fees, sectioning/staining costs, IHC/ISH reagent fees, and digital analysis/reporting fees. We provide detailed project budgetary estimates for client review prior to study initiation.
Contact Us
Boost the impact of your research with our integrated histopathology platform. BioVenic offers everything from basic morphology to advanced imaging and expert analysis, providing the precision you need to transform tissue samples into valuable data. We focus on reproducible results that simplify your non-GLP efficacy and safety assessments. Are you ready to optimize your pathology workflow? Contact our senior scientific team today for a technical consultation or a quotation tailored to your specific research design.
Reference
- Xin, Xin et al. "High-trans fatty acid and high-sugar diets can cause mice with non-alcoholic steatohepatitis with liver fibrosis and potential pathogenesis." Nutrition & metabolism vol. 17 40. 26 May. 2020. https://doi.org/10.1186/s12986-020-00462-y. Distributed under Open Access license CC BY 4.0. Figure 3(A-B) was extracted. The original title was changed to "Liver steatosis and inflammation status".