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Gadolinium-based magnetic resonance imaging (MRI) contrast agents cause undefined fibrosis in kidneys and skin damage. Magnetic resonance microimaging of rat skin and kidney was used first time to identify the physical factors modulating the gadolinium Omniscan®-induced fibrosis by protein targeting. A 500-MHz MR imaging was done to visualize fibrosis in gadolinium-treated animals. Cationic superparamagnetic iron oxide magnetoferritin (SPIOM) was injected in rat to target basement membrane (in rat kidney and different skin structures including epidermis glycolipids and dermis proteins. After MR imaging, excised rat skin and kidneys tissues were imaged by ex vivo 900 MHz MR microimaging to confirm renal fibrosis and skin epidermis thickening. The proton density-weighted images visualized micro details of skin structures and nephron territories while T2-weighted images showed better contrast of tissue structures in both skin and kidney. The gadolinium further enhanced the image contrast and targeted the proteins in renal basement membrane and viable proteins in epidermis. SPIOM enhanced the tissue contrast due to dephasing effect caused by SPIOM on structural changes in nephron and epidermis. Conclusion: Tissue membrane protein and chelate ligand group binding with gadolinium biophysical interaction at molecular level may develop fibrosis. SPIOM injection improved the dephased image contrast of different structures in both skin and nephrons. The epidermis thickening and nephrofibrosis changes may be associated with nephrogenic systemic fibrosis or fibrosing dermatopathy.

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A tumorspecifikus szöveti ABO-vércsoport-antigénekről

Regarding tumor-specific ABO histo-blood group antigens

Orvosi Hetilap
Author: Ferenc Baranyay

–1396. 20 Feizi T. Demonstration by monoclonal antibodies that carbohydrate structures of glycoproteins and glycolipids are onco-developmental antigens. Nature 1985; 314: 53

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Acta Veterinaria Hungarica
Authors: Susan Szathmáry, Nandani Rajapakse, Ibolya Székely, E. Pitlik, Judit Bíró, Noémi Erdei, and L. Stipkovits

., Barile, M. F., Ginsburg, V. and Roberts, D. D. (1989): Adhesion of Mycoplasma pneumoniae to sulfated glycolipids and inhibition by dextran sulfate. J. Biol. Chem. 264, 9283-9288. Adhesion of Mycoplasma pneumoniae to sulfated

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and anti-glycolipid antibodies. Brain 125 , 2591–2625 (2002). Yuki N. Peripheral neuropathies and anti-glycolipid antibodies Brain

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