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Winners of the 2019 UN Global Climate Action Awards Announced

Winners of the 2019 UN Global Climate Action Awards Announced

27 Settembre 2019

The recipients of the 2019 United Nations Global Climate Action...

Building up an appetite for a new kind of grub

Building up an appetite for a new kind of grub

01 Luglio 2019

Food preparation using cricket garnish and ground cricket Credit: Guiomar...

How genes affect tobacco and alcohol use

How genes affect tobacco and alcohol use

22 Febbraio 2019

Data from 1.2 million people reveal how tobacco and alcohol...

Human cells can change job to fight diabetes

Human cells can change job to fight diabetes

15 Febbraio 2019

For the first time, researchers have shown that ordinary human...

New study shows how vegans, vegetarians and omnivores feel about eating insects

New study shows how vegans, vegetarians and omnivores feel about eating insects

01 Febbraio 2019

Many non-vegan vegetarians and omnivores are open to including insects...

Stress and dream sleep are linked to pathways of brain cell death and survival

Stress and dream sleep are linked to pathways of brain cell death and survival

28 Gennaio 2019

The first and most distinct consequence of daily mild stress...

Treat vitamin D deficiency to prevent deadly lung attacks

Treat vitamin D deficiency to prevent deadly lung attacks

11 Gennaio 2019

Vitamin D supplements have been found to reduce the risk...

Articoli filtrati per data: Giovedì, 26 Luglio 2018

Long-term use of either cannabis or cannabis-based drugs impairs memory say researchers. The study has implications for both recreational users and people who use the drug to combat epilepsy, multiple sclerosis and chronic pain. They found that mice exposed to the drug long-term had “significant … memory impairments” and could not even discriminate between a familiar and novel object.
There is little understanding of the potential negative side effects of long-term cannabinoid exposure, though it is already known that heavy, regular cannabis use increases the risk of developing mental health problems including psychosis and schizophrenia.

More and more people are using the drug long-term due to its legalisation in several countries, while more potent varieties are available for recreational users.

Researchers from Lancaster and Lisbon Universities studied the effects of the cannabinoid drug WIN 55,212-2 in mice and found that:

  • Long-term exposure impairs learning and memory in the animals
  • Brain imaging studies showed that the drug impairs function in key brain regions involved in learning and memory
  • Long-term exposure to the drug impairs the ability of brain regions involved in learning and memory to communicate with each other, suggesting that this underlies the negative effects of the drug on memory
Pubblicato in Scienceonline
 
 
Pubblicato dalla rivista 'Scientific Reports' il risultato della prima evidenza sperimentale dei metaboliti rilasciati durante il differenziamento in vivo delle cellule staminali pluripotenti. La ricerca, diretta dai Professori Corrado Di Natale e Federica Sangiuolo, ha coinvolto i Dipartimenti di Ingegneria Elettronica, Biomedicina e Prevenzione, e Scienze e Tecnologie Chimiche dell'Universita' degli Studi di Roma Tor Vergata.

Questo risultato sostanzia un risultato precedente ottenuto in vitro dallo stesso gruppo di ricerca. Per la prima volta e' stata registrata su modelli animali un cambiamento del profilo dei composti volatili rilasciati da cellule staminali hiPSCs ("l'odore della cellule") che segnala con estrema precisione il momento esatto in cui tali cellule iniziano il loro processo di differenziamento. Le cellule iPS sono cellule staminali, derivate da cellule somatiche in cui e' stato riportato indietro l'orologio biologico. Sono in grado di differenziare in qualsiasi tipo di cellula umana specializzata, capace di svolgere funzioni specifiche (come fegato, polmoni, cuore).
Pubblicato in Medicina

 

Scienzaonline con sottotitolo Sciencenew  - Periodico
Autorizzazioni del Tribunale di Roma – diffusioni:
telematica quotidiana 229/2006 del 08/06/2006
mensile per mezzo stampa 293/2003 del 07/07/2003
Scienceonline, Autorizzazione del Tribunale di Roma 228/2006 del 29/05/06
Pubblicato a Roma – Via A. De Viti de Marco, 50 – Direttore Responsabile Guido Donati

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