PURPOSE To examine cell proliferation of the normal corneal epithelium and during extended rigid gas-permeable (RGP) lens wear. METHODS Twenty-three New Zealand White rabbits were fitted unilaterally with either a low oxygen transmissible (Dk/t) or hyper-Dk/t RGP lens, with the other eye serving as a control. The rabbits were injected with 5-bromo-2-deoxyuridine (BrdU) 24-hours later and kill...

BACKGROUND The aim of this study is to analyze the relationship between the self-reported symptoms and objective signs of dry eye disease in long-term rigid gas-permeable (RGP) or soft contact lens (SCL) wearers. SUBJECTS AND METHODS The study included 84 eyes of Caucasian RGP and SCL wearers between the age of 15 and 71 who wore contact lenses on a continuous daily basis for more than 1 year...

In this research, the efficiency of Recycled Glass Powder (RGP) is evaluated for improvement of polymer-modified bitumen and asphalt mixture performance. An extensive laboratory programm was undertaken for polymer-modified bitumen including Crumb Rubber (CR), Styrene Butadiene Styrene (SBS) and Styrene Butadiene Rubber (SBR). Rheological and mechanical proper...

Streptococcus mutans possesses different cell wall molecules, such as protein of the I/II family, the serotype f polysaccharide rhamnose glucose polymer (RGP), and lipoteichoic acid (LTA), which act as adhesins and modulins, allowing S. mutans to colonize teeth and cause dental caries and pulpitis. We tested several isogenic mutants of S. mutans defective in protein I/II and/or RGP, as well as ...

PURPOSE Myeloid differentiation factor 88 (Myd88), a ubiquitous Toll-like receptor adaptor molecule, has been reported to play important roles in B cell responses to infections and vaccination. The present study evaluated the effects of genetic adjuvanting with Myd88 on the immune responses to a plasmid DNA rabies vaccine. MATERIALS AND METHODS Plasmids encoding rabies glycoprotein alone (pIR...

Purpose To compare the visual acuity outcome of the ClearKone SynergEyes™ hybrid contact lens and Boston XO rigid gas permeable (RGP) contact lens in patients with keratoconus. Methods Twenty-eight eyes with keratoconus participated in this study. The visual acuity was examined once with the RGP lens and once with the ClearKone SynergEyes™ hybrid contact lens. Results The mean corneal kerat...

Expression of the beta(3) integrin subunit in melanoma in situ has been found to correlate with tumor thickness, the ability to invade and metastasize, and poor prognosis. Transition from the radial growth phase (RGP) to the vertical growth phase (VGP) is a critical step in melanoma progression and survival and is distinguished by the expression of beta(3) integrin. The molecular pathways that ...

The proliferative responses to a series of peptides constituting the human immunodeficiency virus type 1 (HIV-1) gp120 sequence were evaluated in 19 HIV-1-infected rgp160 vaccine recipients, 17 HIV-1-infected rgp120 vaccine recipients, 15 HIV-1-infected placebo recipients, and 18 HIV-1-uninfected controls. Many regions of the gp120 molecule were found to contribute proliferative epitopes, altho...

El objetivo del estudio fue comparar la selección directa, indirecta e índices combinados de selección, en el mejoramiento rendimiento grano y los componentes número peso sorgo (Sorghum bicolor L. Moench). Se usaron cuatro poblaciones F2 una generación progenies F3, diferentes tamaño granos. trabajo se realizó Universidad Nebraska, EEUU. La evaluación las hizo 1997 localidad, progenie F3 (99 fa...