Nucleus accumbens recruited by cocaine, sugar are different

Nucleus accumbens in the brain play a central role in the risk-reward circuit. Their operation is based chiefly on three essential neurotransmitters: dopamine, which promotes desire; serotonin, whose effects include satiety and inhibition; and glutamate, which drives goal-directed behaviors and responses to reward-associated cues and contexts. In a study using…

Are the side-effects of new cancer 'wonder drugs' worth the risk?

Are the potentially crippling side-effects of new cancer ‘wonder drugs’ worth the risk? Patients with otherwise untreatable tumours benefiting from immunotherapy  The treatment costs around £100,000 per patient per year, and has side-effects One in ten patients given immunotherapy for cancer suffer rheumatoid arthritis Surviving cancer against the odds can…

What are the treatment options for COVID-19?

What are the treatment options for COVID-19? There are several, and which one is best depends on how sick someone is. For example, steroids such as dexamethasone can lower the risk of dying for severely ill patients. But they may do the opposite for those who are only mildly ill….

Trump tests positive for COVID-19: What are the risks?

U.S. president Donald Trump and first lady Melania Trump have tested positive for the novel coronavirus. This comes a month before the 2020 presidential election and a couple of days after Trump’s and former Vice President Joe Biden’s chaotic first presidential debate in Ohio. The 74-year-old president, who spent months…