In the paper, the results of experimental investigations on the differences of wool structure of healthy mice and mice with malignant tumor (s) are represented. It is shown that destruction of wool structure happens during pathology development. Quantity of cells of external wool layer and their thickness decrease when the tumor capsule enlarges. Difference is seen even when the tumor is small. The obtained results can be used to improve optical techniques of biomedical diagnostics of cancer diseases.
Journal of Innovative Optical Health Sciences Vol. 8, No. 3 (2015) 1541001

Currently the departments of quality control of blood centers evaluate the suitability for clinical use of erythrocyte-containing solutions indirectly by routine methods of the determination of hemoglobin concentration, hematocrit level, or hemolysis at the end of the period of storing. These methods can not directly characterize the state of membranes of preserved erythrocytes. The aim of the work is to study the changes of elasticity and surface potential of membranes of red blood cells of erythrocyte-containing solutions in storage for 35 days. Material and Methods. Two series of dry cytological preparations (smears) of erythrocytes have been investigated. The first group consisted of 8 samples of erythrocyte-containing solutions prepared on the day of preservation, and the second group included 20 samples prepared after the long term storage for 35 days at t=+4°C. Blood was stored in bags of «Baxter» company (USA) conserving with «CPDA-1». For atomic force microscopy five typical erythrocytes were selected and their elasticity was measured at 9 points of the membrane of each erythrocyte. Total number of measurements was 1296. Results. Average value of Young's modulus of the first group of samples was 1,81±0,02 (M±m) KPa. The second group showed 3,22±0,02 KPa statistically higher (p<0,001). The increase of the surface potential of erythrocyte membranes over the storage period was found. Conclusion. A statistically significant increase of the average value of Young's modulus of erythrocytes indicated the decrease in the elasticity of the cell membrane during their storage in erythrocyte-containing solutions under standard temperature conditions and could be used as a criterion for quality assessment.
Lamzin I.M., Khayrullin R.М. The study of changes of biophysical properties of red blood cells in storage in erythrocyte-containing solutions using atomic force microscopy // Saratov Journal of Medical Scientific Research, Vol. 10, Issue 1, 2014, pp. 44-48

Symmetrical peptide GYDTQAIVENNESTEYG (WT, Wild Type) identical to 35-51 aminoacid residues of human alpha-lactalbumin (HLA) and peptide GYDTQTVVNNNGHTDYG (ID, IDeal symmetry) homologous to beta-domain of mammalian alpha-lactalbumins can form amyloid-like fibrils in conditions required for fibrillogenesis of HLA. The latter peptide can also form fibrils in deionized water. Fibrils formed by these peptides can cause forming of HLA amyloid-like aggregates in physiological conditions. These results provide an evidence for presence of amyloidogenic determinant in beta-domain of alpha-lactalbumin. Thus, symmetry in the primary structure may play the role in fibrillogenesis of proteins
Protein and peptide letters 14(5): 411-414, 2007