Anatomical Characteristics of Duplicated Caudal Vena Cava in Cats-A Case Report.

Precise knowledge of the species-/breed-specific anatomy is important for accurate diagnosis and treatment. Existing literature has also been increasing in accordance with the growing demands of biomedical research, wherein mammals, including cats, have been used worldwide. Based on a vascular corrosion cast, complete duplication of the caudal vena cava (dCVC) was accidentally found in a 10-year-old male cat.

Human cells with osteogenic potential in bone tissue research.

Bone regeneration after injury or after surgical bone removal due to disease is a serious medical challenge. A variety of materials are being tested to replace a missing bone or tooth. Regeneration requires cells capable of proliferation and differentiation in bone tissue.

New trends in teaching anatomy and our experience with teaching anatomy in Czech during quarantine regarding COVID-19 pandemic.

The forced disruption of education in the summer semester 2019-2020 was an unprecedented situation also for the teaching of anatomy at Czech medical faculties. Due to the forthcoming final exam on Anatomy, the situation urgently required a fluent transition to the distance learning. In our manuscript we present our experiences and tips based also on experience from other anatomical departments and which can be used in similar crises for a continuous.

Influence of Mesenchymal Stem Cell Administration on The Outcome of Partial Liver Resection in a Porcine Model of Sinusoidal Obstruction Syndrome.

Background: In patients with colorectal liver metastases, the possibility for radical liver resection can be limited by oxaliplatin-induced sinusoidal obstruction syndrome (SOS). This study investigates the potential of mesenchymal stem cells (MSC) to improve the outcome of liver resections in pigs with SOS.

Materials And Methods: SOS was induced in all animals (n=20) on day 0.

Porcine Liver Anatomy Applied to Biomedicine.

Currently, there are at least 70 pure domestic pig breeds, but only certain breeds are used in biomedical research. The domestic pig liver is suitable for preclinical research because its size, physiology, and anatomy are similar to that of the human liver; in addition, there is a high degree of genetic similarity between the two species. For planning experiments and identifying improvements in both invasive and noninvasive methods of liver disease management, the morphological similarities and dissimilarities of the pig liver to its human counterpart must be taken into consideration along with sexual dimorphism and interindividual and interspecific variability.

Allogeneic Venous Grafts of Different Origin Used for Portal Vein Reconstruction After Pancreaticoduodenectomy - Experimental Study.

Background: In clinical medicine, little is known about the use of allografts for portal vein (PV) reconstruction after pancreaticoduodenectomy (PD). Portal and caval systems are physiologically different, therefore the properties of allografts from caval and portal systems were studied here in a pig model.

Materials And Methods: PD with PV reconstruction with allogeneic venous graft from PV or inferior vena cava (IVC) was performed in 26 pigs.

Histological mapping of porcine carotid arteries - An animal model for the assessment of artificial conduits suitable for coronary bypass grafting in humans.

Background: Using animal models in experimental medicine requires mapping of their anatomical variability. Porcine common carotid arteries (CCA) are often preferred for the preclinical testing of vascular grafts due to their anatomical and physiological similarity to human small-diameter arteries. Comparing the microscopic structure of animal model organs to their human counterparts reveals the benefits and limitations of translational medicine.

The use of porcine corrosion casts for teaching human anatomy.

In teaching and learning human anatomy, anatomical autopsy and prosected specimens have always been indispensable. However, alternative methods must often be used to demonstrate particularly delicate structures. Corrosion casting of porcine organs with Biodur E20 Plus is valuable for teaching and learning both gross anatomy and, uniquely, the micromorphology of cardiovascular, respiratory, digestive, and urogenital systems.

Morphological Characterization of Papillary Renal Cell Carcinoma Type 1, the Efficiency of Its Surgical Treatment.

Aim: Papillary renal cell carcinoma type 1 (pRCC1) represents the second most common type of malignant renal epithelial tumour. The origin of its characteristic appearance, its growth mechanism, and the long-term efficiency of its surgical treatment remain uncertain. Our aim was to determine typical characteristics of surgically treated pRCC1.

Stereological quantification of microvessels using semiautomated evaluation of X-ray microtomography of hepatic vascular corrosion casts.

Purpose: Quantitative description of hepatic microvascular bed could contribute to understanding perfusion CT imaging. Micro-CT is a useful method for the visualization and quantification of capillary-passable vascular corrosion casts. Our aim was to develop and validate open-source software for the statistical description of the vascular networks in micro-CT scans.

Asymptomatic abdominal aortic aneurysms show histological signs of progression: a quantitative histochemical analysis.

Objective: Abdominal aortic aneurysm (AAA) is a serious disease due to its covert nature, relatively high prevalence and fatal prognosis in the case of rupture. To obtain new insights into AAA pathogenesis, we examined the relationships between histopathology, multiplex in vitro immunoassay data, diameter and symptomatology.

Methods: In a prospective, non-randomised study, we evaluated samples from 6 normal infrarenal aortae and 65 AAA patients (65 walls, 55 thrombi).

[Morphology and etiopathogenesis of the abdominal aortic aneurysm].

The paper summarizes the latest research on the abdominal aorta aneurysm etiopathogenesis and compares normal aorta morphology with changes in the aortic aneurysm wall. The role of risk factors, especially hemodynamic and genetic, is discussed in detail. Special attention is paid to inflammatory processes including cytokines and matrix degrading proteases that contribute to the development of aneurysm.

[Variability of the deep femoral venous system].

Deep venous system is known for its extreme variability but in anatomy it receives only marginal interest. Although a few previous anatomical studies have already pointed out the fact of a significant discrepancy between the autopsy findings and the literary description, it has not had any particular output so far. Our findings confirmed the deep femoral vein to be an alternative collateral vein connecting the popliteal with the femoral vein.