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Visualizzazione post con etichetta fertilità. Mostra tutti i post
Visualizzazione post con etichetta fertilità. Mostra tutti i post

mercoledì 14 settembre 2016

Perché non mettete il telefono li' !


C'è un articolo del Daily Mail
http://www.dailymail.co.uk/health/article-3781953/Why-men-NEVER-phone-pocket-Study-shows-prolonged-exposure-radiation-steadily-destroys-sperm.html
che riprende le recenti pubblicazioni sugli effetti delle radiofrequenze sulla fertilità maschile.

Sta avendo una certa eco ...

sabato 10 settembre 2016

Articolo importante che conferma gli effetti delle radiofrequenze sulla fertilità maschile

Questa review di ricercatori australiani

http://www.reproduction-online.org/content/early/2016/09/06/REP-16-0126
è molto importante perchè di 27 studi investiganti gli effetti di  RF sulla riproduttibilità maschile, sono riportati conseguenze negative in  ben 21 !  
Di questi, 11 su 15 studi riportano un sensibile calo della motilità degli spermatozoi, 7 su 7 riportano alti livelli di specie chimiche ossidate reattive, 4 di 5 studi che hanno dimostrato danni sul DNA .  Inoltre   in 6 su 6 studi si è rilevato un calo di antiossidanti 

Questi risultati, questa review dovrebbe portare a reazioni immediate delle pubbliche autorità ad attivare il principio di precauzione. 

Mobile phone usage has become an integral part of our lives. However, the effects of the radiofrequency electromagnetic radiation (RF-EMR) emitted by these devices on biological systems and specifically the reproductive systems are currently under active debate. A fundamental hindrance to the current debate is that there is no clear mechanism of how such non-ionising radiation influences biological systems. Therefore, we explored the documented impacts of RF-EMR on the male reproductive system and considered any common observations that could provide insights on a potential mechanism. 

Among a total of 27 studies investigating the effects of RF-EMR on the male reproductive system, negative consequences of exposure were reported in 21. Within these 21 studies, 11 of the 15 that investigated sperm motility reported significant declines, 7 of 7 that measured the production of reactive oxygen species documented elevated levels and 4 of 5 studies that probed for DNA damage highlighted increased damage, due to RF-EMR exposure. Associated with this, RF-EMR treatment reduced antioxidant levels in 6 of 6 studies that studied this phenomenon, while consequences of RF-EMR were successfully ameliorated with the supplementation of antioxidants in all 3 studies that carried out these experiments. 

In light of this, we envisage a two-step mechanism whereby RF-EMR is able to induce mitochondrial dysfunction leading to elevated ROS production. 

A continued focus on research which aims to shed light on the biological effects of RF-EMR will allow us to test and assess this proposed mechanism in a variety of cell types.

lunedì 2 settembre 2013

Convegno su Wifi quale fonte di rischio per la fertilità, feti, bambini


Interessante convegno, disponibile solo in audio, ed ovviamente in inglese, su Wifi e rischi ai bambini, ai feti e fertilità.              

tra i relatori Devra Davis, Carpenter, Camilla Rees, ed altri

venerdì 30 agosto 2013

Allarme alle adolescenti

Qui  un articolo di alcuni noti ricercatori ed esperti sugli effetti delle radiofrequenze,  che lancia un allarme per gli effetti delle radiofrequenze a bassa intensità, esempio in ambiente con wifi,  sulle ovaie e quindi dando un ipoteca di futura infertilità

ecco la traduzione

martedì 24 maggio 2011

L'uso del cellulare e la difficoltà ad avere figli ...

Uno studio austriaco-canadese ha determinato che l'uso continuativo e sistematico del cellulare aumenta il livello di testosterone nel sangue, che puo' portare ad una bassa qualità di sperma e quindi ad una ridotta fertilità.

vedere qui una nota ed i riferimenti


ScienceDaily (May 19, 2011) — Men who have been diagnosed with poor sperm quality and who are trying to have children should limit their cell phone use, a new study suggests. Researchers in Austria and Canada have found that while cell phone use appears to increase the level of testosterone circulating in the body, it may also lead to low sperm quality and a decrease in fertility.
"Our findings were a little bit puzzling," says Rany Shamloul, a postdoctoral fellow in the Department of Pharmacology and Toxicology at Queen's University in Canada and a co-author of the study. "We were expecting to find different results, but the results we did find suggest that there could be some intriguing mechanisms at work."
The research team at Queen's and at the Medical University of Graz, Austria, discovered that men who reported cell phone use had higher levels of circulating testosterone but they also had lower levels of luteinizing hormone (LH), an important reproductive hormone that is secreted by the pituitary gland in the brain.
The researchers hypothesize that electromagnetic waves (EMW) emitted by cell phones may have a dual action on male hormone levels and fertility. EMW may increase the number of cells in the testes that produce testosterone; however, by lowering the levels of LH excreted by the pituitary gland, EMW may also block the conversion of this basic circulating type of testosterone to the more active, potent form of testosterone associated with sperm production and fertility.
More in-depth research is needed to determine the exact ways in which EMW affects male fertility.
Results of the research appear in the journal Andrologia, published by Wiley-Blackwell. In addition to Shamloul at Queen's, authors include T. Gutschi, B. Mohamad Al-Ali, K. Pummer, and H. Trummer at the Medical University of Graz