New 7-thio derivatives of 6,7-dihydro-1H-cyclopenta[d]pyrimidine-2,4(3H,5H)-dione have been synthesized by the reaction of 3-cyclohexyl-7-thio-6,7-dihydro-1H-cyclopenta[d]pyrimidine-2,4(3H,5H)-dione with alkylhalogenides. The synthesized compounds were tested for antioxidant activity on the model of Fe(2+)-dependent oxidation of adrenaline in vitro. It was found that the antiradical activity of...

Present noninvasive neuroimaging methods measure neuronal activity indirectly, via either cerebrovascular changes or extracranial measurements of electrical/magnetic signals. Recent studies have shown evidence that MRI may be used to directly and noninvasively map electrical activity associated with human brain activation, but results are inconclusive. Here, we show that MRI can detect cortical...

Most structurally abnormal hemoglobins are present in smaller amounts than HbA in the erythrocytes of heteroxygous subjects. In the presence of a hemoglobinopathy, a and globin synthesis remains balanced with equal production of the two types of chains. In reticulocytes of subjects with Hb Leiden (fi6 or 7 glu 0) there is greater production of a than fi globin in vitro (fl/a = 0.67), and slight...

has been approved by the Examining Committee for the thesis requirement for the Master of Science degree in Operative Dentistry at the May 2013 graduation. I would also like to thank Dr. James Wefel who allowed me to get a glimpse of his infinite wisdom in Cariology. A special " thank you " is in order to Dr. for taking time out of their busy schedules to offer much needed technical expertise. ...

Exopolysaccharides (EPS) and internal (intracellular) polysaccharides (IPS) obtained from the Pleurotus ostreatus M2191 and PBS281009 cultivated using the batch system revealed an average of between 0.1-2 (EPS) and 0.07-1.5 g/L/day (IPS). The carbohydrate analysis revealed that the polysaccharides comprised 87-89% EPS and 68-74% IPS. The investigation of antioxidant activity in vitro revealed a...

Thanks to a number of recent technical advances, it will become increasingly popular to study the very basics of distributed information processing using cultured neuronal networks. Most researchers studying population coding are working with intact, living animals. Clearly, cultured neuronal networks lack many features of real brains, but they retain many others. They develop organotypic synap...

linarin is a flavone glycoside in the plants flos chrysanthemi indici, buddleja officinalis, cirsium setosum, mentha arvensis and buddleja davidii, and has been reported to possess analgesic, antipyretic, anti-inflammatory and neuroprotective activities. in this paper, linarin was investigated for its ache inhibitory potential both in vitro and ex vivo. ellman’s colorimetric method was used for...

the synthesis of 4-(substituted benzylidene)-2-(pyrazin-2-yl) oxazol-5(4h)-one was achieved in two steps, in first step, pyrazine-2-carboxamide  dissolved in etoh, 10% koh solution with clch2cooh produced compound 2-(pyrazine-2-carboxamido) acetic acid (ii) and in second step, compound (ii) in (ch3co)2o with aromatic aldehyde, and catalyst potassium acetate produced title compounds 4-(substitut...

The development of a high-density active microelectrode array for in vitro electrophysiology is reported. Based on the Active Pixel Sensor (APS) concept, the array integrates 4096 gold microelectrodes (electrode separation 20 microm) on a surface of 2.5 mmx2.5 mm as well as a high-speed random addressing logic allowing the sequential selection of the measuring pixels. Following the electrical c...

The ability to design proteins with desired properties by using protein structural information will allow us to create high-value therapeutic and diagnostic products. Using the protein structures of lambda lysozyme and the SH3 domain of human Crk, we designed a synthetic protein switch that controls the activity of lysozyme by sterically hindering its active cleft through the binding of SH3 to ...