A new technique for performing corneal endothelial cell autoradiography with the scanning electron microscope is presented. The scanning electron microscope is able to detect silver grains deposited over tritiated thymidine--labeled nuclei of regenerating corneal endothelium.

Fuchs endothelial corneal dystrophy (FECD) is a leading indication for corneal transplantation. FECD is characterized by progressive alterations in endothelial cell morphology, excrescences (guttae) and thickening of the endothelial basement membrane and cell death. Ultimately, these changes lead to corneal edema and vision loss. Due to the lack of vision loss in early disease stages and the de...

Calcium phosphate nanoparticles (CaP-NP) are ideal tools for transfection due to their high biocompatibility and easy biodegradability. After transfection these particles dissociate into calcium and phosphate ions, i.e. physiological components found in every cell, and it has been shown that the small increase in intracellular calcium level does not affect cell viability. CaP-NP functionalized ...

corneal neovasculariuulon (cnj1 can cause significant visual loss. the kinetics of endothelial cells durin{: microvascular growth were studied usinga model of alkaline cauteriuuion-induced neovascularization ofthe 40 rabbits cornea. changes in dna synthetic activity of endothelial cells during neovasculanuuion were assessed by autoradiographic studyojjjl_tdr incorporation, in vivo and in vitro....

The barrier and pump functions of the corneal endothelium are essential for the maintenance of corneal transparency. Although corneal transplantation is the only current therapy for treating corneal endothelial dysfunction, the potential of tissue-engineering techniques to provide highly efficient and less invasive therapy in comparison to corneal transplantation has been highly anticipated. Ho...

Hematoporphyrin derivative (HpD) is a systemically administered photosensitizing agent that may be of value in the treatment of solid tumors. When corneal endothelial cells were perfused in the specular microscope with HpD and exposed to a 25-W incandescent light at 5 cm (5.5 mW/cm) there was anatomic disruption of corneal endothelial cells and swelling of the corneal stroma. Perfusion with 0.2...

A novel technique for studying the growth properties of human embryonic corneal endothelial and stromal cells in organ culture was devised. Human embryonic eye globes were microdissected so that a passage was opened between the outer environment and the anterior chamber, which rendered free access of tissue culture medium to the endothelial cell monolayer. The dissected eye globes were maintain...

PURPOSE Dextran T500, routinely used as a deswelling supplement in organ culture (OC), has been suspected of being toxic to corneal endothelial cells (ECs). This study was conducted to evaluate the innovative use of poloxamers compared with dextran for deswelling OC corneas. METHODS Five poloxamers (P124, P188, P237, P338, and P407) were dissolved respectively in a standard OC medium to reach...

The corneal endothelium of 42 clear corneal transplants was studied with a specular microscope. The endothelial cell morphology was analysed by using a computerised image analysis system. A quantitative index was developed to study the degree of variation in cell size. By applying this objective index we observed that pleomorphism is independent of age, and considerable alteration occurs in cel...

The culture of human corneal endothelial cells (CECs) is critical for the development of suitable graft alternative on biodegradable material, specifically for endothelial keratoplasty, which can potentially alleviate the global shortage of transplant-grade donor corneas available. However, the propagation of slow proliferative CECs in vitro can be hindered by rapid growing stromal corneal fibr...