medicine and research in biology. how DNA works, proteins, vascular system, but also new treatments and medical research. Biomedical lab stuff

Depression and walks in the woods

2022-01-21T16:21:16+01:0021 January 2022|Categories: Medicine and Research|Tags: , , , |

Depression is serious business! There are diseases that do not leave scars, that do not require plaster, crutches or patches, but that cannot for this reason be ignored. Psychiatric disorders are this: they are invisible to anyone without an experienced eye, but there are, and they are dangerous. DEPRESSION, for example, is often underestimated! Because it is so easy to say to a depressed person “go for a walk in the countryside!”? Simple: because you have no idea what depression is. Well, let's explain it, but not in an easy way, non con le vignette che confondono depressione e tristezza, [...]

Rita Levi-Montalcini, a history of science, love and struggle.

2021-12-30T12:58:10+01:0030 December 2021|Categories: Medicine and Research|Tags: , , , |

As far as 30 years ago it was taught, unfortunately also at school, that the nervous system is a static thing, that is born and dies, without growing; than the nerves once injured, they no longer regenerate. Fortunately this is not the case and, if we know the truth, we owe it to a great scientist: Rita Levi-Montalcini. She was responsible for the discovery of the neuronal growth factor (NGF) but not only: his is also a good science story, love, struggle and tenacity that we now tell you. Rita was born in Turin in 1902 from a very interesting family: the father, Adamo [...]

On the tracks of oncoviruses with Renato Dulbecco

2021-12-09T00:51:28+01:009 December 2021|Categories: Medicine and Research|Tags: , , , |

Certainly, nowadays, hunting for viruses may not seem like the best of ideas but, for Renato Dulbecco, following step by step the Polyomavirus was the solution to understand how some of these pathogens are capable of inducing the formation of tumors. We are talking about the category of oncoviruses, today responsible for about 1 tumor on 6 in the world, and that among its ranks includes the Papillomavirus (cause of cervical cancer), Hepatitis B and C (which instead attack the liver). Dulbecco discovered that the integration of the viral genome with that of the host is responsible for the generation of tumors, [...]

Workers of death

2021-11-02T18:01:31+01:002 November 2021|Categories: Curiosity, Medicine and Research, Nature|

What happens after death, has always been an object of curiosity for man! The different religions, beliefs and traditions, handed down over the millennia, they tried to imagine an unearthly destiny. But on Earth, instead, what remains? Even scientifically speaking, it can be said that there is life after death! The life in question, however, is not ours, but that of a large corpse fauna. Fear, eh? After death, the decomposition process begins immediately, as the cells no longer receive oxygen and other nutrients that allow them to survive. It follows a process called "autolysis": [...]

How- DNA does -not- change

2021-08-03T10:16:51+02:003 August 2021|Categories: Medicine and Research|Tags: , , , |

With the problem of RNA vaccines, fear of changes in our DNA has also risen. What are we really talking about? There is this risk? Let's try to explain it. The structure of DNA is a relatively young discovery, which has less than 70 years. Editing - modification- genica has even fewer years of history behind it, so much so that the most advanced technique that is known won the Nobel only last year. So we can say that the unscientific community, who is not so familiar with these hi-tech stuff, he didn't have much time to understand concepts like genetics, the [...]

The epigenetic supersimilarity of monozygotic twins

2021-07-14T21:41:06+02:0014 July 2021|Categories: Medicine and Research|Tags: , , |

Monozygotic twins are identical individuals born from the fertilization of a single egg cell from a sperm that have the same genetic makeup. The common elements between two identical twins do not only concern genetics but also involve epigenetics, that is the set of molecular mechanisms that regulate the expression of genes without modifying the DNA. A type of epigenetic modification studied in twins is methylation which consists in the addition of a methyl group (-CH3) to a nitrogenous base. Through the study of metastable epialleles (ME), epigenetic variants set up in the early embryo and maintained during subsequent cell differentiation, it was possible to observe that [...]

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, the cerebellum and spinal cord and it is for this reason that the symptoms of the disease may be different a [...]

DNA come biomateriale

2021-07-02T16:22:46+02:001 July 2021|Categories: Medicine and Research|Tags: , , , |

Our genetic instructions are invaluable: DNA not only determines who we are, but it can also be used in medicine for gene therapy. It's not all: looking at it from a structural and physical point of view, a team of biotechnologists and materials physicists has developed the so-called "DNA hydrogels", dei polimeri la cui struttura è fatta di acidi nucleici e al cui interno troviamo dell’acqua. These can be used in various biomedical applications: in the formulation of drugs, in gene therapy and cell therapy approaches. DNA as a biomaterial shows qualities such as biocompatibility and biodegradability, that [...]

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