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A 100% French nasal vaccine against COVID-19 yields positive pre-clinical results

A 100% French nasal vaccine against COVID-19 yields positive pre-clinical results

20 Settembre 2021

In contrast to intramuscular vaccines, only nasal vaccines are able...

Media beautifies the image of coronavirus

Media beautifies the image of coronavirus

15 Settembre 2021

According to a study by the Instituto de Radio Televisión...

Scientific evidence to date on COVID-19 vaccine efficacy does not support boosters for general population, expert review concludes

Scientific evidence to date on COVID-19 vaccine efficacy does not support boosters for general population, expert review concludes

15 Settembre 2021

An expert review by an international group of scientists, including...

How plants can respond to threats

How plants can respond to threats

10 Settembre 2021

(A) Silver electrodes placed on the surface of leaf petioles...

Singapore scientists develop AI-powered system to diagnose glaucoma using eye images

Singapore scientists develop AI-powered system to diagnose glaucoma using eye images

10 Settembre 2021

Scientists from Nanyang Technological University, Singapore (NTU Singapore), in collaboration...

Have COVID-19 lockdowns affected passion and intimacy in relationships?

Have COVID-19 lockdowns affected passion and intimacy in relationships?

10 Settembre 2021

In a study of dating and married couples in India...

Research reveals the impact of nicotine-containing e-cigarettes on the body

Research reveals the impact of nicotine-containing e-cigarettes on the body

07 Settembre 2021

Using e-cigarettes containing nicotine causes an immediate increase in the...

Oncotarget: Telomere dysfunction and chromosome instability in cancer cells

Oncotarget: Telomere dysfunction and chromosome instability in cancer cells

06 Settembre 2021

These terpyridine platinum-derived G4 ligands are promising compounds for cancer...

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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