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Dynamics of intracellular calcium induced by lactate and glucose in rat pachytene spermatocytes and round spermatids.
Glycolytic metabolism in meiotic and post-meiotic spermatogenic cells shows differentiation-related changes. The developmental and physiological significance of these metabolic changes is not known.… Expand
New populations of two threatened species of Alsodes (Anura, Alsodidae) reveal the scarce biogeographic knowledge of the genus in the Andes of central Chile
High Andean environments of central Chile (32°–38°S) are inhabited by several endemic species of the genus Alsodes. Two of them, A. pehuenche and A. hugoi, have geographic distributions restricted to… Expand
Phosphoinositides in frog skeletal muscle: a quantitative analysis.
The contents of major phospholipids per g of wet wt. in frog skeletal muscle are: 5.3 mumol PC; 1.4 mumol PE; 1 mumol SM; 0.4 mumol PtdIns; 0.3 mumol CL; and 0.13 mumol PS. The quantities of… Expand
Synthesis of polyphosphoinositides in transverse tubule and sarcoplasmic reticulum membranes of frog skeletal muscle.
Synthesis of polyphosphoinositides has been studied in transverse (T-) tubule and sarcoplasmic reticulum (SR) membrane fractions of frog skeletal muscle, following 32P-labeling with [gamma-32P]ATP.… Expand
Phosphorylation modulates the voltage dependence of channels reconstituted from the major intrinsic protein of lens fiber membranes
- G. Ehring, N. Lagos, G. Zampighi, J. Hall
- Chemistry, Medicine
- The Journal of Membrane Biology
- 1 February 1992
SummaryMajor intrinsic polypeptide (MIP), a 28-kDa protein isolated from lens fiber cell membranes, forms large, nonselective channels when reconstituted into lipid bilayers. MIP channels are… Expand
Energy metabolism and its linkage to intracellular Ca2+ and pH regulation in rat spermatogenic cells
- E. Herrera, K. Salas, N. Lagos, D. Benos, J. Reyes
- Biology, Medicine
- Biology of the cell
- 1 September 2000
Energy metabolism and intracellular adenine nucleotides of meiotic and postmeiotic spermatogenic cells are highly dependent on external substrates for oxidative phosphorylation and glycolysis. Using… Expand
Temperature dependence of intracellular Ca2+ homeostasis in rat meiotic and postmeiotic spermatogenic cells.
The hypothesis that intracellular [Ca2+] is a cell parameter responsive to extreme temperatures in rat meiotic and postmeiotic spermatogenic cells was tested using intracellular fluorescent probes… Expand
COMPOSITION, DIVERSITY AND SIZE OF DIATOMS CONSUMED BY THE ANDEAN FLAMINGO (PHOENICOPARRUS ANDINUS) IN SALAR DE PUNTA NEGRA, ANTOFAGASTA REGION, NORTHERN CHILE
– In April 2009, at the Salar de Punta Negra (24°35’S, 68°58’W) in the Antofagasta Region of northern Chile, we quantified the composition, diversity, and size of diatoms, the only consumed prey by… Expand
First place--Resident Clinical Science Award 1990. Suppression of lymphokine-activated killer cell cytotoxicity by a soluble factor produced by squamous tumors of the head and neck.
- B. Strasnick, N. Lagos, A. Lichtenstein, R. Mickel
- Otolaryngology--head and neck surgery : official…
Incubation of human peripheral blood lymphocytes (PBL) in the presence of interleukin-2 results in the generation of lymphokine-activated killer (LAK) cells that are highly cytotoxic to a variety of… Expand
Revisión actualizada sobre la biodiversidad y conservación de los felinos silvestres de Chile
espanolEsta revision presenta informacion actualizada sobre caracteristicas generales, morfologia, distribucion geografica, comportamiento y ecologia y conservacion para las cinco especies de felinos… Expand