Metabolism and Cells

Iron appeared to reduce the effects of orally or subcutaneously administered lead on blood enzyme and liver catalase activity (Bota et al. 1982). Treatment of pregnant hamsters with iron- or calcium-deficient diets in conjunction with orally administered lead resulted in embryonic or fetal mortality and abnormalities (ranting, edema) in the litters, while treatment with complete diets and lead did not (Carpenter 1982). Inadequate levels of iron in association with increased body burdens of lead enhanced biochemical changes associated with lead intoxication (Waxman and Rabinowitz 1966). Ferrous iron was reported to protect against the inhibition of hemoglobin synthesis and cell metabolism by lead it has been speculated that iron competes with lead uptake by the cell (Waxman and Rabinowitz 1966). In... 

Susceptibility to lead toxicity is influenced by dietary levels of calcium, iron, phosphorus, vitamins A and D, dietary protein, and alcohol (Calabrese 1978). Low dietary ingestion of calcium or iron increased the predisposition to lead toxicity in animals (Barton et al. 1978a Carpenter 1982 Hashmi et al. 1989a Six and Goyer 1972 Waxman and Rabinowitz 1966). Iron deficiency combined with lead exposure acts synergistically to impair heme synthesis and cell metabolism (Waxman and Rabinowitz 1966). 

Progressive back interaction of the environment chemicals and cell metabolism... 

Wolstenholme, G.E.W. O Connor, C.M., Eds. (1956) Ionizing Radiations and Cell Metabolism. CIBA Foundation Symposium. J. A. Churchill, London. 

However, at the introduction of C60/PVP complex (up to 5 pg/ml) into the cultivating media during cell growth no effects were observed. In the cell MA-104 (cell line derived of green monkey kidney epithelium) grown normally within 3-6 days, no morphological changes and cell metabolism intensiveness were observed (Table 7.1). 

What do we know about sleep and cell metabolism Nowhere near enough. But there is some very clear handwriting on the wall that says good news may be on the way. First of all, we all know that in normal subjects sleep responds to fatigue and reverses it. Second, we know that sleep deprivation at first makes fatigue worse and then, later, much worse. Third, we now know that sleep deprivation is uniformly fatal if it is sustained for three to four weeks. 

Three epidemiologic studies in developing countries have failed to find definite evidence of impairment among heavy users of cannabis, but field studies may lack sensitivity. Experimental studies in which subjects have smoked heavily for varying periods have shown a lower serum testosterone level in men and airway narrowing. Reports of effects on immune mechanisms, chromosomes, and cell metabolism are often contradictory. Effects on the fetus are still uncertain. 

Jeong YH, Wang SS (1995), Role of glutamine in hybridoma cell culture effects on cell growth, antibody production, and cell metabolism, Enzyme and Microbial Technology 17 47-55. 

Monti, M., Hedner, P Ikomi-Kumm, J., Valdemarsson, S. (1987). Erythrocyte thermogenesis in hyperthyroid patients Microcalorimetric investigation of sodium/potassium pump and cell metabolism. Metabolism 36, 155-159. 

V. C. Culotta. 2000. Superoxide dismutase, oxidative stress, and cell metabolism Cwrr. Top. CellRegul. 36 117-132. (PubMed)... 

Calcium is the most abundant mineral in the human body. About 99% is in the bones and teeth where it plays a structural role and the remaining 1% is in the body tissues and fluids where it is essential for muscle contraction, nerve impulse transmission, and cell metabolism. 

Clegg, J. S. (1985). Interrelationships between water and cell metabolism in Anemia cysts. XI. Density measurements. Cell Biophys. 6, 153-161. 

Clegg, J. S., Szwamowski, S., McClean, V. E. R., Sheppard, R. J., Grant, E. H. (1982). Interrelationships between water and cell metabolism in Anemia cysts. X. Microwave dielectric studies. Biochim. Biophys. Acta. 721,458 68. 

Besides the interesting dynamic structure of complex intracellular oscillations these results have an important impact on the task of coupling fluid dynamics and cell metabolism. The strong feedback-link between pool concentrations and uptake system leads to a complex system behavior driven by the dynamic... 

Zamecnik, P.C., Keller, E.B., Hoagland, M.B., Littlefield, J.W., Loft-field, R.B. Studies on the mechanism of protein synthesis. In Ionizing radiations and cell metabolism (Wolfstenholme, G.E.W., and O Connor, C., eds.). Ciba Found. Symp., p. 161-173. Boston Little, Brown and Company 1956... 

Electromagnetic Field Effects on Cell Membranes and Cell Metabolism H. Berg Discussion... 

ELECTROMAGNETIC FIELD EFFECTS ON CELL MEMBRANES AND CELL METABOLISM... 

LEMAIRE-EWING, S., DESRUMAUX, C., NEEL, D. LAGROST, L. 2010. Vitamin E transport, membrane incorporation and cell metabolism Is alpha-tocopherol in lipid rafts an oar in the lifeboat Mol Nutr Food Res, 54, 631 0. 

Animals subjected to environmental stresses make physiological adjustments within their range of capability. In homeotherms, the thyroid influences thermoregulation and cell metabolism therefore, a measure of thyroid activity... 

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