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Deficiency of cystathionine β-synthase (CBS) activity is the most common cause of increased homocysteine (Hcy). However, until now the underlying mechanisms why CBS activity decreased still remain unresolved. The goal of this study was to explore the contribution of nitrative stress to deficiency of
Hyperhomocysteinemia due to cystathionine beta synthase (CBS) deficiency is associated with diverse cognitive dysfunction. Considering the role of the serine/threonine kinase DYRK1A, not only in developmental defects with life-long structural and functional consequences, but also in multiple
Hyperhomocysteinemia (HHcy) is a newly recognized risk factor for myocardial infarction, however, the effect of HHcy on endothelium-dependent flow-induced dilation of coronary arteries is not known. Thus, changes in diameter of small intramural coronary arteries (diameter, approximately 145 microm)
Hyperhomocysteinemia (HHcy) is associated with endothelial dysfunction (ED), but the mechanism is largely unknown. In this study, we investigated the role and mechanism of HHcy-induced ED in microvasculature in our newly established mouse model of severe HHcy (plasma total homocysteine, 169.5 μM).
Insufficient hydrogen sulfide (H2S) has been implicated in Type 2 diabetic mellitus (T2DM) and hyperhomocysteinemia (HHcy)-related cardiovascular complications. We investigated the role of H2S in T2DM and HHcy-induced endothelial dysfunction in small mesenteric artery (SMA) of db/db mice fed a high
Vascular dementia (VaD) is the second most common form of dementia after Alzheimer's disease, but drug regulatory authorities have not approved any effective medication for this indication. Researchers are keenly aware of the need to uncover precise and druggable targets for VaD. However, finding
Amyloid peptides (Abeta) are fragments of the Amyloid Precursor Protein (APP), an integral membrane protein. Abeta peptides are continuously generated by neurons and non-neuronal cells via sequential cleavage of APP by secretases. In particular, Abeta1-42 is the main component of the senile plaques
About 4% of non-small-cell lung carcinomas involve an EML4-ALK tyrosine kinase fusion gene and occur almost absolutely in carcinomas arising in non-smokers. Crizotinib, the first inhibitor of anaplastic lymphoma kinase (ALK), ROS1 and c-Met receptor kinase, has been used in the treatment of
Fibrinogen is a precursor of fibrin, which is the main component of the blood clot. The opposite of coagulation is fibrinolysis. The proper functioning of both systems allow to maintain a hemostasis. Increasing level of fibrinogen is an important risk factor for myocardial infarction or ischemic
Background: The continued identfication of new mutations in the cystathionine beta-synthase (CBS) gene is important in correlating the genotype/phenotype of patients with classic homocystinuria and in assessing whether heterozygosity of CBS deficiency is an important cause of mild
Homocysteine (Hcy), an intermediate formed during the catabolism of the essential dietary amino acid methionine, and its cyclic thioester, homocysteine thiolactone (TL) formed from Hcy in plasma, may be implicated in pathological haemostasis and atherosclerosis. The mechanism by which TL exerts the
Hyperhomocysteinemia and insulin resistance are independent factors for cardiovascular disease. Most of the angiotoxic effects of homocysteine are related to the formation of homocysteine thiolactone and the consequent increase in oxidative stress. We have recently found that homocysteine
OBJECTIVE
Increased plasma [homocysteine] is associated with stroke but its direct effects on the brain during a stroke are unknown. Since excitatory amino acids are important in inducing brain damage, we examined the effect of homocysteine on the release of various amino acids in the striatum of
Differentiation of myofibroblast, as evidenced by alpha-smooth muscle actin (alpha-SMA) expression, is largely mediated by transforming growth factor-beta1 (TGF-beta1). This mechanism often follows inflammatory events such as endothelial damage due to oxidative stress, which can further leads to
OBJECTIVE
The goal of this study was to examine the role of endoplasmic reticulum (ER) stress signaling and the contribution of glycogen synthase kinase (GSK)-3β activation in hyperglycemic, hyperhomocysteinemic, and high-fat-fed apolipoprotein E-deficient (apoE(-/-)) mouse models of accelerated