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excitotoxins and cancer

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https://www.readbyqxmd.com/read/24428527/selective-androgen-receptor-modulator-rad140-is-neuroprotective-in-cultured-neurons-and-kainate-lesioned-male-rats
#1
Anusha Jayaraman, Amy Christensen, V Alexandra Moser, Rebekah S Vest, Chris P Miller, Gary Hattersley, Christian J Pike
The decline in testosterone levels in men during normal aging increases risks of dysfunction and disease in androgen-responsive tissues, including brain. The use of testosterone therapy has the potential to increase the risks for developing prostate cancer and or accelerating its progression. To overcome this limitation, novel compounds termed "selective androgen receptor modulators" (SARMs) have been developed that lack significant androgen action in prostate but exert agonist effects in select androgen-responsive tissues...
April 2014: Endocrinology
https://www.readbyqxmd.com/read/19135806/pretreatment-with-alternate-day-modified-fast-will-permit-higher-dose-and-frequency-of-cancer-chemotherapy-and-better-cure-rates
#2
J B Johnson, S John, D R Laub
It is established that calorie restriction (CR) increases the resistance of cells to various stressors such as oxidative damage, excitotoxins, mercury and acetaminophen. Alternate day feeding (ADF) may confer greater stress resistance than daily CR of 30% or 40%. A recent study in three strains of mouse showed that a fast of 48 or 60 h prevented toxic effects due to administration of doses 2-4 times the maximum human dose of etoposide, a chemotherapy agent which acts through increased oxidative stress. In addition, mice inoculated with neuroblastoma survived longer when pretreated with fasting, then given high dose etoposide, as well as not exhibiting toxicity...
April 2009: Medical Hypotheses
https://www.readbyqxmd.com/read/16753799/the-effect-of-salidroside-on-cell-damage-induced-by-glutamate-and-intracellular-free-calcium-in-pc12-cells
#3
Li-Li Cao, Guan-Hua Du, Min-Wei Wang
Salidroside (Sald), was extracted from Rhodiola rosea L, a traditional Chinese medicine which has been used for long time for anti-aging, anti-cancer and anti-oxidative stress etc. In present experiment, salidroside could protect the PC12 cell against injuries caused by exposure of PC12 cells to 2 mmol/L glutamate for 15 min followed by incubation with serum-free medium for 24 h, which resembled the excitotoxin in vivo system. Furthermore, saldroside could decrease the [Ca2+]i of PC12 cells in Mg2+-free Hanks' solution and D-Hanks' solution but there was no effect on basal [Ca2+]i in Hanks' solution...
January 2006: Journal of Asian Natural Products Research
https://www.readbyqxmd.com/read/11208925/brain-derived-neurotrophic-factor-mediates-an-excitoprotective-effect-of-dietary-restriction-in-mice
#4
W Duan, Z Guo, M P Mattson
Dietary restriction (DR; reduced calorie intake) increases the lifespan of rodents and increases their resistance to cancer, diabetes and other age-related diseases. DR also exerts beneficial effects on the brain including enhanced learning and memory and increased resistance of neurons to excitotoxic, oxidative and metabolic insults. The mechanisms underlying the effects of DR on neuronal plasticity and survival are unknown. In the present study we show that levels of brain-derived neurotrophic factor (BDNF) are significantly increased in the hippocampus, cerebral cortex and striatum of mice maintained on an alternate day feeding DR regimen compared to animals fed ad libitum...
January 2001: Journal of Neurochemistry
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