Tintarella…of Sun!

2021-07-08T15:12:37+02:008 July 2021|Categories: Curiosity|Tags: , , |

Have you ever been told “how white you are, get some sun "or" you don't have melanin? You never get tanned!”. Well, if it has never happened to you you are very lucky. If, on the other hand, you always hear the same story every year, welcome to the pale face club. But why in the summer some people tan more than others? Cos'è e come agisce la melanina? When we expose ourselves to the sun and UV rays hit our skin, a protective mechanism triggered by melanocytes is activated, epidermal cells, which produce melanin. Melanocytes are formed dendritic cells [...]

Multiple sclerosis: a technology against the fatigue

2021-07-02T13:44:07+02:002 July 2021|Categories: Medicine and Research|Tags: , , , , |

Multiple sclerosis is a neurodegenerative disease that affects the central nervous system, also referred to as "autoimmune" due to the reaction of the immune system directed towards the body. The immune defenses attack certain parts of the central nervous system, recognizing them as foreign bodies and activating an inflammatory process that can damage or cause the loss of myelin, a substance that lines nerve fibers like a sheath, and the cells that produce it. This process can take place in various areas, affecting the optic nerves, il cervelletto e il midollo spinale ed è per questo motivo che i sintomi della malattia possono essere diversi a [...]

Craving for dessert?

2021-06-20T16:56:24+02:0020 June 2021|Categories: Food and Health|Tags: , , , , , , , |

How many times after lunch, even if you ate a whole plate of pasta, feel that hole in your stomach, precise for a piece of cake, or a little chocolate? And how many times, with all the good intentions of following a decent diet, try to deceive yourself by eating some fruit? And how many times then, after fruit, give in and also eat any chocolate, finger, candy you are standing in front of? Eh, I'm sorry, but the brain is not deceived! Rather, better: the intestine is not deceived! In fact, you need to know there are special cells in our intestines that can tell you the difference [...]

IPSC: The future of stem cells

2019-01-18T20:54:58+01:0011 January 2019|Categories: No Category|Tags: , , , |

Immaginate ogni cellula del nostro corpo come ad una potenziale cellula staminale! Sembra fantascienza, invece è realtà grazie agli studi di Kazutoshi Takahashi e Shinya Yamanaka, che nel 2006 hanno dimostrato che è possibile riprogrammare una cellula somatica (it is. cellula epiteliale) riportandola a uno stadio di staminalità. Queste cellule riprogrammate, grazie all’inserimento artificiale di 4 geni, furono chiamate iPSC ossia “Cellule Staminali Pluripotenti Indotte”. Prima di tutto occorre fare un passo indietro e chiederci cosa sia una cellula staminale. Si tratta di una cellula che ha la capacità di trasformarsi in altre cellule del corpo attraverso un meccanismo chiamato “differenziamento [...]

Less sweets and more wine: the secret of youth?

2021-07-15T20:08:15+02:0022 December 2018|Categories: Food and Health|Tags: , , , |

It's really good to eat less? In 2004 four men and four women volunteered for the BIOSPHERE project 2: a closed structure, designed to contain a complex and self-sufficient ecosystem, with a savannah, a coral reef and a tropical forest, to study and plan a future space colonization. Accettarono quindi di rimanere chiusi in un sistema senza comunicazioni con l'esterno, without the possibility of being able to communicate with each other and having to survive only on the food they can get for themselves. BIOSFERA2 did not give the expected results and was stopped sooner than expected; but the data collected [...]

Stuttering mice

2017-07-12T17:10:18+02:0023 April 2016|Categories: No Category|Tags: , |

The genetic defect that is responsible for many cases of stuttering in humans is reproduced for the first time in the laboratory mouse. Engineered mice show a disorganization in the emission of sounds comparable to that present in stuttering humans. Millions of people around the world suffer from stuttering problems, this disorder is usually treated with psychological approaches or with speech therapy. But for several years, evidence has been accumulating that, in some cases, the disorder is related to a group of genetic mutations. Furthermore, various researches have shown that, in some deaf-mute individuals, the presence of a [...]

Pollution and fine dust: how to see clearly in the fog of public debate

2017-07-12T17:35:24+02:004 February 2016|Categories: No Category|Tags: , , , , , , , |

Sia che siate lettori attenti all’ attualità oppure semplici cittadini che utilizzano i propri autoveicoli, non vi sarà certamente sfuggita l’attenzione che media, istituzioni e amministrazioni stanno riservando al tema dell’inquinamento urbanistico. Parole come polveri sottili, particolato sospeso o sigle come PM10 sono state ormai del tutto sdoganate dalla loro accezione meramente tecnica e sono diventate di pubblico dominio. Ma a cosa ci si riferisce quando sentiamo questi termini? Provando a fare un po’ di chiarezza potremmo dire che il fulcro del discorso ruota intorno al concetto di particolato sospeso (In inglese “particular matter”, abbreviato con la sigla “PM”), ossia [...]

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