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Browsing Department of Biology - Faculty Publications by Issue Date

Now showing items 1-20 of 216

On the link between Bcl-2 family proteins and glucocorticoid-induced apoptosis

Almawi W.Y.; Melemedjian O.K.; Abou Jaoude M.M. (BETHESDA9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA, 2004)

As immunosuppressive agents, glucocorticoids (GCs) act by inhibiting the expression of cytokines and adhesion molecules at the transcriptional and post-transcriptional levels. In addition, GCs exerted their effects by ...
Alcoholism and neuro-immune-endocrine interactions: Physiochemical aspects

Haddad J.J. (SAN DIEGO525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA, 2004)

The role of alcohol consumption and alcoholism as an addiction in regulating the chemistry of the brain and its physiology has gained a backlog of interest over the past few decades. Besides the notion that alcohol acts ...
DDT Residues in Lebanese Soils

Bashour I.I.; Dagher S.M.; Chammas G.I.; Lteif A.E.; Kawar N.S. (NEW YORK270 MADISON AVE, NEW YORK, NY 10016 USA, 2004)

The present study was conducted to evaluate the levels of residual DDT in Lebanese soils. A total of 113 surface soil samples were collected for analysis from three major agricultural regions in the country: Mount Lebanon, ...
Oxygen sensing and oxidant-redox-related pathways

Haddad J.J. (, 2004)

What is the nature of the oxygen sensor(s) and how do organisms sense variations in oxygen? A progressive rise of oxidative stress due to the altered reduction-oxidation (redox) homeostasis appears to be one of the hallmarks ...
Molecular pathway for thymoquinone-induced cell-cycle arrest and apoptosis in neoplastic keratinocytes

Gali-Muhtasib H.U.; Abou Kheir W.G.; Kheir L.A.; Darwiche N.; Crooks P.A. (PHILADELPHIA530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA, 2004)

Thymoquinone (TQ), the most abundant constituent in black seed, was shown to possess potent chemopreventive activities against DMBA-initiated TPA-promoted skin tumors in mice. Despite the potential interest in TQ as a skin ...
The type specimens of George Edward Post in Beirut and Geneva

Musselman L.J.; Saoud N.S. (, 2004)

George Edward Post described 221 taxa from Syria and adjacent regions in the late 1890s. Of these, types for 147 have been located, 77 at G and 70 at BEI. © TÜBITAK.
Control of dehydrodiferulate cross-linking in pectins from sugar-beet tissues

Baydoun E.A.-H.; Pavlencheva N.; Cumming C.M.; Waldron K.W.; Brett C.T. (OXFORDTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND, 2004)

Pectins were extracted from roots, petioles and leaves of sugar beet, and cross-linked using hydrogen peroxide and peroxidase. The effects on dehydrodiferulate formation were monitored by HPLC and TLC. Dehydrodimers were ...
Hypoxia and the regulation of mitogen-activated protein kinases: Gene transcription and the assessment of potential pharmacologic therapeutic interventions

Haddad J.J. (AMSTERDAMPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS, 2004)

Oxygen is an environmental-developmental signal that regulates cellular energetics, growth, and differentiation processes. Despite its central role in nearly all higher life processes, the molecular mechanisms for sensing ...
Redox and oxidant-mediated regulation of apoptosis signaling pathways: Immuno-pharmaco-redox conception of oxidative siege versus cell death commitment

Haddad J.J. (AMSTERDAMPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS, 2004)

The mechanisms controlling apoptosis remain largely obscure. Because apoptosis is an integral part of the developmental program and is frequently the end-result of a temporal course of cellular events, it is referred to ...
On the antioxidant mechanisms of Bcl-2: A retrospective of NF-κB signaling and oxidative stress

Haddad J.J. (SAN DIEGO525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA, 2004)

Antioxidant and prooxidant signaling pathways are emanating as major players in, and regulators of, cell death and apoptosis. Redox conception of the critical role of oxidative stress in determining cell fate is being ...
Interleukin-1 β inhibits Na+-K+ATPase activity and protein expression in cardiac myocytes

Kreydiyyeh S.I.; Abou-Chahine C.; Hilal-Dandan R. (LONDON24-28 OVAL RD, LONDON NW1 7DX, ENGLAND, 2004)

Recent studies have shown that heart diseases are always accompanied with high levels of IL-1β and a decrease in Na+-K+ATPase concentrations. This work studies the involvement of the cytokine in the observed changes in the ...
Thymoquinone extracted from black seed triggers apoptotic cell death in human colorectal cancer cells via a p53-dependent mechanism.

Gali-Muhtasib H.; Diab-Assaf M.; Boltze C.; Al-Hmaira J.; Hartig R.; Roessner A.; Schneider-Stock R. (, 2004)

For centuries, the black seed (Nigella sativa) herb and oil have been used in Asia, Middle East and Africa to promote health and fight disease. Thymoquinone (TQ), the most abundant constituent present in black seed, is a ...
Cytokines in central nervous system: Targets for therapeutic intervention

Safieh-Garabedian B.; Haddad J.J.; Saade N.E. (, 2004)

Accumulating evidence implicates inflammatory processes in the development of a number of neurodegenerative diseases and demonstrates that neurons and microglia can be a source for various cytokines, which are believed to ...
The signal transduction pathway that mediates the effect of interleukin-1 beta on the Na+-K+-ATPase in LLC-PK1 cells

Kreydiyyeh S.I.; Al-Sadi R. (NEW YORK175 FIFTH AVE, NEW YORK, NY 10010 USA, 2004)

IL-1β reduces the activity and protein expression of Na +-K+-ATPase in rat kidney cells. The aim of the present study was to elucidate the signalling pathway involved, using the LLC-PK 1 cell line. In these cells IL-1β ...
Stage-Specific Effect of N-(4-Hydroxyphenyl)Retinamide on Cell Growth in Squamous Cell Carcinogenesis

Kabbout M.; Hatoum A.; Abou-Lteif G.; Chakroun I.; Homaidan F.R.; Darwiche N. (NEW YORKDIV JOHN WILEY and SONS INC, 605 THIRD AVE, NEW YORK, NY 10158-0012 USA, 2004)

Squamous cell carcinoma (SCC) is the most prevalent form of epithelial cancer. SCC results when normal epithelial cells undergo multiple neoplastic changes that culminate in the evolution of an invasive cancer. Retinoids ...
Growth hormone releasing hormone reverses endotoxin-induced localized inflammatory hyperalgesia without reducing the upregulated cytokines, nerve growth factor and gelatinase activity

Talhouk R.S.; Saade N.E.; Mouneimne G.; Masaad C.A.; Safieh-Garabedian B. (OXFORDTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND, 2004)

During inflammatory processes, the hypothalamic-pituitary axis is activated which can subsequently result in analgesia. For example, hypothalamic corticotrophin-releasing hormone (CRH) that is released during such activation ...
Overwintering yellow perch fry in Alabama

Saoud I.P.; Rodgers L.; Chappell J.; Davis D.A. (BETHESDA5410 GROSVENOR LANE SUITE 110, BETHESDA, MD 20814-2199 USA, 2004)

Wild harvests of yellow perch Perca flavescens have failed to keep up with the strong market demand for the fish. Moreover, yellow perch has many attributes that make it attractive for commercial aquaculture in the USA. ...
Substitution of fish meal by co-extruded soybean poultry by-product meal in practical diets for the Pacific white shrimp, Litopenaeus vannamei

Samocha T.M.; Davis D.A.; Saoud I.P.; DeBault K. (AMSTERDAMPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS, 2004)

The use of a co-extruded soybean poultry by-product meal with egg supplement was evaluated as a substitute for fish meal in a practical diet formulated to contain 32percent crude protein and 8percent lipid. The co-extruded ...
The effect of endotoxin on functional parameters of mammary CID-9 cells

Safieh-Garabedian B.; Mouneimne G.M.; El-Jouni W.; Khattar M.; Talhouk R. (BRISTOLEURO HOUSE, 22 APEX COURT WOODLANDS, BRADLEY STOKE, BRISTOL BS32 4JT, ENGLAND, 2004)

The effect of endotoxin on mammary CID-9 cells, which differentiate in culture and express β-casein, was investigated. Cells in culture supplemented with lactogenic hormones and dripped with EMS-Matrix (EMS-drip), were ...
Temporal fluctuations and settlement patterns of native and Lessepsian herbivorous fishes on the Lebanese coast (eastern Mediterranean)

Bariche M.; Letourneur Y.; Harmelin-Vivien M. (NEW YORK233 SPRING ST, NEW YORK, NY 10013 USA, 2004)

We provide here the first information on the abundance, settlement patterns and microhabitat use of settlers of two Lessepsian siganid species, Siganus rivulatus and S. luridus, in comparison with the two main native ...

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Browsing Department of Biology - Faculty Publications by Issue Date

Browsing Department of Biology - Faculty Publications by Issue Date

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