December 9, 2021

Beyond Going Long

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Scientists have created an animal that does not need to breathe in order to survive

Oxygen is something we need to live. It is a substance without which we will die in a few minutes. It is the same with animals for which it is equally necessary. However, scientists from Ludwig Maximilian University managed to create an animal that lives without breathing. The portal draws attention to the topic

Photovoltaic algae played a major role

It’s not exactly a new animal, but around the tadpoles (Xenopus laevis), which deprived them of the ability to breathe. Of course, despite being a small animal, oxygen is essential for its survival. Then the scholars follow them injected photosynthetic algae, thanks to them were able to establish a symbiotic relationship between amphibians and microbes, which kept the amphibians alive without any environmental oxygen.

This is a strange experience that may seem insignificant at first glance. However, the opposite is true. It can have tremendous medicinal value. for example Keeping someone alive when a stroke ‘cuts off’ the brain’s oxygen supply.

Scientists’ experiment began by cutting off tadpoles from oxygen in order to cut off their brains. To this end, they used a well-known technique in which they separate the tadpole’s head and keep it alive and working for several days in a liquid medium that provides oxygen and nutrients. Then they lit the water tank with a special light that imitates the natural sun. To activate algae injected into the tadpole. Once they did, So the tadpoles’ brains were activated, indicating that the algae were able to keep their host alive.


“Here we used a concept using transcardiac injection and vascular distribution of unicellular green algae or cyanobacteria in the brain of Xenopus laevis tadpoles. Using measurements of oxygen in the cerebral ventricle, we found that these microorganisms robustly produce large amounts of O2 when illuminated. In a severely hypoxic environment, When neuronal activity stopped completely, O2 photosynthesis reliably restarted and rescued neuronal activity.” In a published study.

This is the first step so that we can keep the brain alive, even without oxygen

Although the experiment was successful, Diana Martinez, a scientist who has commented on her colleagues’ success, notes that it’s not clear if these findings can be used to treat conditions in which the brain is deprived of oxygen.

“The first problem is that the tadpoles Xenopus laevis are transparent and light can easily pass through the skin to activate the photosynthetic oxygen machines,” he adds.

Neurovedic Hans Straka, who led the study, admits that his experience is still in its infancy It is far from clinical use. But somewhere we need to start.

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