منابع مشابه
Feast or famine
Lysosomal storage diseases are metabolic disorders characterized by the accumulation of acidic vacuoles, and are usually the consequence of the deficiency of an enzyme responsible for the metabolism of vesicular lipids, proteins or carbohydrates. In contrast, mucolipidosis type IV (MLIV), results from the absence of a vesicular Ca ( 2+) release channel called mucolipin 1/transient receptor pot...
متن کاملCellular sensors of feast and famine.
In response to changes in environmental conditions, animals and humans alike can initiate physiological regulatory mechanisms to assure survival. For example, when food is scarce, the body becomes “thrifty”, and conversely, when it is abundant, physiological “unthrifty” mechanisms are initiated. Recent work has uncovered novel cellular mechanisms of fuel sensing that contribute to these shifts ...
متن کاملFamine versus feast: understanding the metabolism of tumors in vivo.
To fuel unregulated proliferation, cancer cells alter metabolism to support macromolecule biosynthesis. Cell culture studies have revealed how different oncogenic mutations and nutrients impact metabolism. Glucose and glutamine are the primary fuels used in vitro; however, recent studies have suggested that utilization of other amino acids as well as lipids and protein can also be important to ...
متن کاملLeishmania carbon metabolism in the macrophage phagolysosome- feast or famine?
A number of medically important microbial pathogens target and proliferate within macrophages and other phagocytic cells in their mammalian hosts. While the majority of these pathogens replicate within the host cell cytosol or non-hydrolytic vacuolar compartments, a few, including protists belonging to the genus Leishmania, proliferate long-term within mature lysosome compartments. How these p...
متن کاملWhither the lipid profile: feast, famine, or no free lunch?
A lipid profile (LP) is used in clinical practice to assess risk of cardiovascular disease (CVD) and to guide therapy. The standard LP includes a direct measurement of plasma total cholesterol, triglyceride, and HDL cholesterol concentrations, and derived estimates of LDL cholesterol, non–HDL cholesterol, and lipid ratios (1 ). Expert guidelines recommend that accurate assessment of the LP requ...
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ژورنال
عنوان ژورنال: BMJ
سال: 1975
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.4.5994.479