Although prostaglandins (PGs)-lipid signals produced downstream of cyclooxygenase (COX) enzymes-regulate actin cytoskeletal dynamics, their mechanisms of action are unknown. We previously established Drosophila oogenesis, in particular nurse cell dumping, as a new model to determine how PGs regulate actin remodeling. PGs, and thus the Drosophila COX-like enzyme Pxt, are required for both the pa...

This case study explores the impact of peer group supervision (PGS) for counselors delivering Teaching Recovery Techniques (TRT), a group psycho-social program for traumatized adolescents. Interviews were conducted with seven school counselors, from villages near East Jerusalem in occupied Palestine; a skilled supervisor; and an international trainer. A quasi-qualitative analysis was conducted ...

OBJECTIVE To investigate the single blastocyst transfer in preimplantation genetic diagnosis (PGD)/preimplantation genetic screening (PGS) cycles. METHODS 80 PGD/PGS cycles undergoing blastocyst biopsy were studied. There were 88 warming cycles during the study period. Only one warmed blastocyst was transferred per cycle. The outcomes were followed up to the infants were born. RESULTS The e...

A number of clustering algorithms are available to depict population genetic structure (PGS) with genomic data; however, there is no consensus on which methods the best performing ones. We conducted a simulation study three PGS scenarios subpopulations k = 2, 5 and 10, recreating several maize genomes as model to: (1) compare well-known methods: UPGMA, k-means and, Bayesian method (BM); (2) ass...

p 3 Introduction pgs 5-10 Materials and Methods pgs 10-18 Materials General Methods Site-directed Mutagenesis Insertion of Promega’s CBRluc into the pGEX-6P-2 vector Protein Expression and Purification Bioluminescence activity-based light assays Heat inactivation studies Bioluminescence emission spectra Microplate luminometer assays Mammalian cell experiments by Promega collaborators: -Transfec...

Proteoglycans (PGs) are a group of heavily glycosylated proteins that are present throughout the mammalian body and are involved in a wide variety of biological phenomena, including structural maintenance, tissue remodeling, molecular presentation, cell adhesion and signal transmission. Previous studies have revealed an increasing number of roles for PGs in human reproduction. Several PGs are c...

Posterior glottis stenosis (PGS) represents an interesting dilemma to the airway surgeon. Diagnosis of this rare condition can be difficult, often mimicking bilateral vocal fold paralysis. Management can also be challenging, with several potential therapeutic options. After receiving IRB approval, pediatric Otolaryngology patient records at a single institution in Memphis, TN were reviewed from...

Prostaglandins (PG) are known to induce pain perception indirectly by sensitizing nociceptors. Accordingly, the analgesic action of nonsteroidal anti-inflammatory drugs (NSAIDs) results from inhibition of cyclooxygenases and blockade of PG biosynthesis. Cyclopentenone PGs, 15-d-PGJ(2), PGA(2), and PGA(1), formed by dehydration of their respective parent PGs, PGD(2), PGE(2), and PGE(1), possess ...

Co-oxidation of xenobiotics has been shown t o occur during prostaglandin synthase (PGS)-catalysed synthesis of prostaglandins (Marnett. 198 I ; EIing et al.. 1983; Marnett & Eling. 1983). PGS catalyses the oxygenation of polyunsaturated fatty acids to hydroxy endoperoxides (e.g. PGH2). The most important substrate in vivo is arachidonic acid (AA) . PGS contains two activities: the fatty acid c...

Apolipoprotein E (apoE) and lipoprotein lipase (LPL), key proteins in the regulation of lipoprotein metabolism, bind with high affinity to heparin and cell-surface heparan sulfate proteoglycan (HSPG). In the present study, we tested whether the expression of apoE or LPL would modulate proteoglycan (PG) metabolism in cells. Two apoE-expressing cells, macrophages and fibroblasts, and LPL-expressi...