Anatomical Behavioural and Histopathological Evaluation of Colostrum and Astaxanthin in Streptozotocin induced Diabetic retinopathy in Swiss Albino Mice

Abstract

Abstract newlineDiabetes mellitus is metabolic disorders and it elevates the blood sugar levels via damage of pancreatic newlinebeta cells (Insulin secreting cells) and development of resistance of insulin receptors. The progression of newlinediabetes mellites is occurs mainly due to the changes of lifestyle changes. In chronic condition, the quality newlineof life is also altered with diabetes mellitus via generation of secondary complications. The major newlinesecondary complications are diabetic cardiomyopathy, diabetic nephropathy, diabetic neuropathy and newlinediabetic retinopathy (DR) (Nellaiappan et al., 2021). These complications are mainly occurs with newlineinterference of glucose and proteins which leads to forms the glycated proteins and advanced glycation newlineend products (AGE). Besides, AGE are known to cause the cellular oxidant stress, inflammation (lipid newlineperoxidation), mitochondrial dysfunction, alteration of ion channel states, and functional changes of newlinedeoxyribonucleic acid (DNA) and messenger ribonucleic acid (mRNA) (Gora et al., 2021). These cellular and newlinemolecular alterations are also affects the vascular systems, cholesterol regulations, barrier functions and newlinemetabolic enzymes leads to worsen the conditions of degree of heart attack, rheumatoid arthritis, newlineosteoporosis, stroke, and aging process. Anatomically, these secondary complications are categorized as newlinemacro/microvascular complications (Mota et al., 2020). DR is microvascular complication of diabetes newlinemellites. The incidence rate of DR is higher i.e., 17.4/1000 persons/year (Williams et al., 2004). The level newlineof DR is categorized based on degree of variations like microaneurysms, hemorrhages, hard exudates, newlinecotton wool spots, venous changes, new vessel formation, and macula thickening (G. Wang et al., 2020). newlineThe treatment of DR is remains challenge due to involvement of too complex mechanisms. Some of the newlinedrugs are manage the severity of DR progression like dexamethasone and intravitreal triamcinolone (Hong newlineet al., 2020; Kuley et al., 2020) newline