Total vascular resistance, augmentation index, and augmentation pressure increase in patients with peripheral artery disease

Peripheral arterial disease (PAD) is one of major vascular diseases which frequently coexists with coronary arterial disease and cerebrovascular disease. The patients with PAD have a poor prognosis when it progresses. A new blood pressure testing device enables to simultaneously measure brachial blood pressure (BP), central BP, and several vascular parameters, with easy and non-invasive, in a short time. Here, we aimed to evaluate these arterial stiffness parameters in patients with PAD. In this study, 243 consecutive patients who were suspected of having PAD and referred to our hospital from September 2016 to June 2019, were registered. Several parameters, such as brachial BP, central BP, aortic pulse wave velocity (aPWV), total vascular resistance (TVR), augmentation index (AI) and augmentation pressure (AP), were determined by Mobil-O-Graph. Ankle-brachial pressure index (ABI) was used to define PAD (ABI <= 0.9 as PAD). The relationship between PAD and central BP, aPWV, TVR, AI, or AP were investigated. One hundred sixty-two patients (67%) were categorized as the PAD group and 81 patients (33%) as the non-PAD group. In the PAD group, the systolic brachial BP and central systolic BP were significantly higher than those in the non-PAD group (138 +/- 24 mmHg vs 131 +/- 19 mmHg, P < .05, 125 +/- 22 mmHg vs 119 +/- 18 mmHg, P < .05, respectively). TVR, AI, and AP were significantly higher in the PAD group (1785 +/- 379 dyn s/cm(5) vs 1661 +/- 317 dyn s/cm(5), P < .05, 26.2 +/- 13.0% vs 22.2 +/- 13.3%, P < .05, 13.5 +/- 9.4 mmHg vs 10.7 +/- 7.2 mmHg, P < .05, respectively). No significant differences in diastolic BP, central diastolic BP, and aPWV were found between the groups. Multivariate logistic regression analysis revealed that PAD was significantly associated with TVR, AI, and AP (P < .05, respectively). TVR/AP/AI were significantly higher in the PAD group than in the non-PAD group

Effects of Alcohol on Membrane Fluidity of Human Erythrocyte

Membrane fluidity in human erythrocytes was measured by a spin label method using an electron spin resonance spectrometer in healthy volunteers after ingestion of alcohol (1.5 ml of whisky/kg body weight). Fluidity in the lipid bilayer closer to the hydrophilic face decreased at 30 min and 90 min, and fluidity in the hydrophobic core decreased at 90 min after ingestion of alcohol. In the same experiment, the level of thiobarbituric acid reactive substances in the serum decreased 30 min after ingestion of alcohol, and the triglyceride level increased and free fatty acid level decreased, and serum superoxide dismutase activity increased 150 min after ingestion. Furthermore, membrane fluidity in human erythrocytes was examined in patients with alcohol dependence syndrome who had not any alcohol for about 26 months. Erythrocyte membrane fluidity of patients with alcohol dependence syndrome was not different from that of healthy controls. However, erythrocyte membrane fluidity of the lipid bilayer closer to the hydrophilic face increased in patients who had concomitant liver cirrhosis compared with those who did not. These results suggest that alcohol affects temporal change of membrane fluidity in human erythrocytes.</p

Stereoselective photodimerisation of chalcones in the molten state

Photodimerisations of chalcone and its derivatives in the molten state proceed efficiently and stereoselectively to give rac-anti-head-to-head dimers in all cases tested

Selective Stobbe condensation under solvent-free conditions

Solvent-free condensation of cyclohexanone (1) and diethyl succinate (2) in the presence of ButOK at room temperature gives cyclohexylidenesuccinic acid (3), while heating a mixture of 1, 2 and ButOK at 80 °C gives only cyclohexenylsuccinic acid (4)

Guest-dependent novel photochromism of 7-bromo-1,4,8-triphenyl-2,3-benzo[3.3.0]octa-2,4,7-trien-6-one in its inclusion crystals

Inclusion crystals of 7-bromo-1,4,8-triphenyl-2,3-benzo[3.3.0]octa-2,4,7-trien-6-one (1) showed a reversible color change from yellow to green on exposure to UV-light, and this depends on the guest molecules present

Isolation of a nearly eclipsed chiral rotamer of 1,2-dichloroethane as an inclusion crystal with a chiral host compound

A nearly eclipsed chiral rotamer of 1,2-dichloroethane has been isolated in a pure state as an inclusion complex crystal with the chiral host compound, (S)-(-)-2-bromo-3,3a,8-triphenyl-1,3a-dihydrocyclopenta[ a]inden-1-one and an X-ray crystal structure of the complex has been studied.http://pubs.rsc.org/en/content/articlelanding/1997/cc/a702333

The crystal and molecular structure of 2,7-di-tert-butyl-4,5,9,10-tetraphenylbenzo[1,2,:4,5]dicyclobutadiene: an exceptionally long C–C aromatic bond

The X-ray determined structure of the title compound is reported; it was found that the annelated bonds are the longest observed in a benzene derivative [1.540(5) Å]; ab initio calculations (at the B3LYP/6-31G* and MP2/6-31G* levels of theory) were used in order to understand the electronic and structural properties of the compound

A new method for stereoselective bromination of stilbene and chalcone in a water suspension medium

Bromination reactions of (E )-stilbene and (E )-chalcone in a water suspension medium proceeded efficiently and stereoselectively, and the reaction products were collected easily by filtration