OBJECTIVES Tissue remodeling often accompanies diseases such as COPD that are caused by or aggravated by tobacco exposure. Inhaled or systemic corticosteroids are frequently used for the treatment of these illnesses, and their beneficial effects are often ascribed to their anti-inflammatory properties. However, their role in tissue remodeling remains unclear. This study was designed to evaluate...

The Chelonid fibropapilloma-associated herpesvirus (CFPHV; ChHV5) is believed to be the causative agent of fibropapillomatosis (FP), a neoplastic disease of marine turtles. While clinical signs and pathology of FP are well known, research on ChHV5 has been impeded because no cell culture system for its propagation exists. We have cloned a BAC containing ChHV5 in pTARBAC2.1 and determined its nu...

The Epstein-Barr virus EBNA-1 gene product is essential for latent replication of the virus. In transformed cells characterized by the most restricted patterns of viral latent gene expression, EBNA-1 transcription is driven from the Fp promoter. We have used genetic and biochemical techniques to study the promoter-proximal elements that regulate Fp expression in B cells. We show that a 114-bp f...

FP is based on the principle that when a small fluorescent molecule (the tracer) is excited with plane-polarized light, the emitted light is largely depolarized because the molecule rotates rapidly in solution during its fluorescence lifetime. If the tracer is bound to a large molecule, thereby increasing its molecular volume, its rotation is slowed and the emitted light remains in the same pla...

The herbaceous peony (Paeonia lactiflora Pall.) has high ornamental and nutritional value, the seeds of P. can be used to produce high-quality edible oil. However, low seed yield limits application lactiflora. This mitigated by insect pollinators. Here, we evaluated pollination services honeybees (Apis mellifera L.) in a field. We found that A. provided for throughout day especially period from...

AIMS/BACKGROUND To study the expression of the H19 gene in hepatocellular carcinoma. H19 is an imprinted, maternally expressed gene, which is tightly linked, both physically and functionally, to the paternally expressed insulin-like growth factor 2 (IGF II). IGF II is known to be involved in liver carcinogenesis. H19 was first discovered in the fetal mouse liver to be under the same regulatory ...

Helicoverpa armigera nucleopolyhedrovirus (HearNPV) is highly pathogenic to the cotton bollworm, H. armigera. There have been several attempts to develop in vitro production of this virus, including the selection of high producing cell line. In order to evaluate the potential of in vitro methods of producing this virus on a large-scale, the virus was propagated in the H. armigera (HAPO2) and H....

Members of the Tc1/mariner superfamily of transposable elements isolated from vertebrates are transpositionally inactive due to the accumulation of mutations in their transposase genes. A novel open reading frame-trapping method was used to isolate uninterrupted transposase coding regions from the genome of the frog species Rana pipiens. The isolated clones were approximately 90% identical to a...