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Showing posts with label fetus. Show all posts
Showing posts with label fetus. Show all posts

Sunday, February 21, 2021

OF PLASTICS & HUMAN PLACENTA: MEET THE "PLASTICENTA" (Pt2/4 - GUESS THE PLASTICS)

Keywords: plastics, plastic, microplastics, pollution, placenta, placentas, birth, women, pregnancy, polypropylene, PP, thermoplastic, thermosets, medicine, biology

Part 1 is here

Part 3 is here

Part 4 is here

(Read other plastic related stories here & here)

  


 

Listen to the podcast episode
on iTunes
on Anchor

 

 Ascolta l'episodio in italiano  

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Ooooh, hello dear English speaking-reading-hearing reader, welcome back to me, @sciencemug, the blog/podcast/twitter&instagram accounts/entity behind the unsuccessful e-shop stuffngo on zazzle.com which tells you science stories while reading the palm but yet not being able to decipher the tree, aaand which talks to you thanks to the voice, kidnapped via a voodoo-wireless trick, from a veeery very very dumb human.

Aaand which does all of this in English-question-mark, a language that is to proper English what a banana bacon muffin is to something that doesn’t scream: “human civilization is doomed!”. 

Today I’m gonna tell you the second part (the first one is here) of a story about human placentas and plastics!

Plastics symbols on plastics background
Plastics symbols on plastics background (by @sciencemug)
[The p
lastics symbols pic by Clker-Free-Vector-Images is a free to use image (source: pixabay.com); the plastics pic by Marc Newberry is a free pic (source: Unsplash); all pics adapted by @sciencemug]

A group of Italian researchers (aka the Italian Brains, aka the ITBs) studies human placentas in search of microplastics fragments (MPs), that is plastic particles smaller than half a centimeter. In doing so, the researchers find such pollutants in the placentas of women in good health and who have had normal pregnancies and deliveries. The ITBs’ study is therefore “the first [one] revealing the presence of [...] microplastics and, in general, of man-made particles in human placenta(P).

The Italian research team is lead by Medical Doctor Antonio Ragusa, Head of the Department of Woman, Mother and Newborn of the San Giovanni Calibíta Fatebenefratelli Hospital, in Rome, and it publishes its study (P) in the science journal Environment International.

Sooo, dear reader, in part 1 I told you about the microplastics classification story, and also about how the Italian Brains select the women involved in their study, how they design and follow a plastic free protocol to collect the placenta samples, and what kind of technique (the Raman microspectroscopy) they use to analyze such samples.

Now, all in all, the ITBs collect six placentas. Let’s remember that, from each placenta, the ITBs take and then analyze, precisely via Raman microspectroscopy, three pieces between about 20 and 30 gr of weight (the mean weight is 23.3gr). Of these three pieces, one comes from the maternal side of the placenta, one from the fetal side, and the third one from the chorioamniotic membranes, namely the two membranes that form the embryo sac, which is the structure that surrounds and protects the fetus.

Sooo, dear reader, let’s see then what the ITBs find out.

In 4 of the 6 collected placentas the researchers find a total of 12 small fragments of non-human something.

Fetus and the plastinvasion (by @sciencemug)
Fetus & the palstinvasion (by @sciencemug)
[Pregnant woman pic, by freestocks, is a free pic (source: Unsplash); plastics symbols pic by Clker-Free-Vector-Images
is a free to use image (source: pixabay.com); all pics adapted by @sciencemug]

How small, you ask?

Well, ten fragments are about 10μm in size, while

Monday, January 18, 2021

OF PLASTICS & HUMAN PLACENTA: MEET THE "PLASTICENTA" (Pt1/4)

Keywords: plastics, plastic, microplastics, placenta, placentas, birth, pregnancy, pollution, spectroscopy, medicine, biology

Part 2 is here

Part 3 is here 

Part 4 is here

(Read other plastic related stories here & here)

Ooooh, hello dear English speaking-reading-hearing reader, welcome back to me, @sciencemug, the blog/podcast/twitter&instagram accounts/entity behind the unsuccessful e-shop stuffngo on zazzle.com which tells you science stories while trying to understand, by reading tons of zoology textbooks, if millipedes don’t wear shoes ‘cause they generally are too broke to be able to afford such a huge expense, or ‘cause they prefer flip-folps but they can’t find a good wholesale dealer to make the order to, ooor ‘cause no millipede wants to be a cobbler given the high risk of dying of a heart-attack due to constant overwork, aaand which talks to you thanks to the voice, kidnapped via a voodoo-wireless trick, from a veeery very very dumb human.

Aaand which does all of this in Eng?ish, a language that is to proper English whatghwaahhghzzt!” is to something that make sense. 

Here I’m gonna tell you a story about human placentas and plastics!

 Listen to the podcast episode
on iTunes
on Anchor

 Sulla plastica & la placenta umana: ecco a voi la “plasticenta” (Pt1)

 Ascolta l'episodio in italiano  

su iTunes 

su Anchor

 

Pieces of plastic have been found, for the first time ever, in human placentas. The placentas in question were indeed those of four healthy women who have had smooth pregnancies and deliveries.

The discovery is the result of a study, published (P) in the science journal Environment International, made by a group of Italian researchers (aka the Italian Brains aka the ITBs) led by Medical Doctor Antonio Ragusa, Head of the Department of Woman, Mother and Newborn of the San Giovanni Calibíta Fatebenefratelli Hospital, in Rome.

Soo dear reader, the story goes like this.

A bunch of researchers, in Italy, decides to investigate if there’s plastic in the placentas of pregnant women.

More precisely, Dr. Ragusa and colleagues look for microplastics, that are commonly defined as all those plastic particles that are smaller than half a centimeter.

Now, dear reader, I know you’re a fast thinker, so in your mind you just wondered why is that half a centimeter is the limit for microplastics, instead of, I dunno, two millimeters or the thickness of a hair of the bear of Masha and the Bear? Well, buddy, here’s a fun fact for you ‘bout this.

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