Synthesis and Biological Evaluation of Metal Chelates

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Effect of long-term aluminum feeding on lipid/phospholipid profiles of rat brain myelin

Effect of long-term (90–100 days) exposure of rats to soluble salt of aluminum (AlCl(3)) on myelin lipid profile was examined. The long-term exposure to AlCl(3 )resulted in a 60 % decrease in the total phospholipid (TPL) content while the cholesterol (CHL) content increased by 55 %. Consequently the TPL / CHL molar ratio decreased significantly by 62 %. The phospholipid composition of the myelin membrane changed drastically; the proportion of practically all the phospholipid classes decreased by 32 to 60 % except for phosphatidylcholine (PC) and phosphatidylethanolamine (PE). Of the latter two, proportion of PC was unchanged while PE increased in proportion by 47 %. Quantitatively, all phospholipid classes decreased by from 42 to 76% with no change in the PE content. However the membrane fluidity was not altered in Al-treated rats. Many of the changes we observe here show striking similarities with the reported phospholipid profiles of Alzheimer brains

Impact and outcome of cardiac diseases in pregnancy

Background: Present study done to study incidence, effect of pregnancy on cardiac disease and vice-versa and feto-maternal outcome in patients with cardiac disease in pregnancy at tertiary care hospital.Methods: It’s a retrospective observational study conducted in Department of OBGY at tertiary care hospital between 01 June 2019 to 31 May 2020. 28 cases of cardiac disease out of 8659 patients registered included in the study. Demographic data like age, parity, etiological factors of cardiac disease, mode of delivery, neonatal outcome noted from case records.Results: In study, 32% were unregistered cases and 10.7% had never sought any medical care before. Majority (53.6%) cases belonged to 20-25 years. Heart disease noted to be more in primipara (35.7%). 71.4% belonged to NYHA class 1+2 and had a relatively uneventful peripartum period. Majority (53.6%) patients had rheumatic valvular disease. Cases of Congenital heart disease were17.8%, pulmonary artery hypertension was 25%, Maternal mortality were 2(7.2%). 46.5% women delivered with caesarean section. PIH (18%) and anemia (7.2%) were most commonly associated conditions. 85.6% women delivered live newborns and full term, pre-term deliveries and IUGR were 71.4%, 17.8% and 10.7% respectively.Conclusions: Rheumatic origin is the most common cardiac disease associated with pregnancy. The availability of early diagnostic techniques and reference to tertiary care centre, timely admission and close monitoring of patient and delivery with multidisciplinary approach include specialized cardiologic care, high risk obstetric support and neonatology expertise can minimize feto-maternal morbidity and mortality. Pre-conceptional counselling, regular antenatal check-ups and contraceptive advice must be included in counselling part

Exclusive semileptonic decays of DD and DsD_s mesons in the covariant confining quark model

Recently, the BESIII collaboration has reported numerous measurements of various $D_{(s)}$ meson semileptonic decays with significantly improved precision. Together with similar studies carried out at BABAR, Belle, and CLEO, new windows to a better understanding of weak and strong interactions in the charm sector have been opened. In light of new experimental data, we review the theoretical description and predictions for the semileptonic decays of $D_{(s)}$ to a pseudoscalar or a vector meson. This review is essentially an extended discussion of our recently published results obtained in the framework of the covariant confining quark model.Comment: 51 pages, 12 figures, 29 tables, to be submitted to Frontiers of Physics as a revie

Striatal neuroinflammation promotes parkinsonism in rats

The specific role of neuroinflammation in the pathogenesis of Parkinson's disease remains to be fully elucidated. By infusing lipopolysaccharide (LPS) into the striatum, we investigated the effect of neuroinflammation on the dopamine nigrostriatal pathway. Here, we report that LPS-induced neuroinflammation in the striatum causes progressive degeneration of the dopamine nigrostriatal system, which is accompanied by motor impairments resembling parkinsonism. Our results indicate that neurodegeneration is associated with defects in the mitochondrial respiratory chain related to extensive S-nitrosylation/nitration of mitochondrial proteins. Mitochondrial injury was prevented by treatment of L-N^6^-(l-iminoethyl)-lysine, an inducible nitric oxide synthase (iNOS) inhibitor, suggesting that iNOS-derived NO is responsible for mitochondrial dysfunction. Furthermore, the nigral dopamine neurons exhibited intracytoplasmic [alpha]-synuclein and ubiquitin accumulation. These results demonstrate that degeneration of nigral dopamine neurons by neuroinflammation is associated with mitochondrial malfunction induced by NO-mediated S-nitrosylation/nitration of mitochondrial proteins