Tag: danni agli spermatozoi

Informazioni Ricerca scientifica • • • • • • • • • • • • • • • • • By Alessandro Cinciripini 0 Comments

The effects of radiofrequency electromagnetic radiation on sperm function.

[Importante review condotta da ricercatori Australiani, che valuta gli effetti delle Radiofrequenze emesse dalla telefonia mobile sulla fertilità maschile.

Un ostacolo fondamentale all’attuale dibattito riguardo ai danni da Radiazioni Non-Ionizzanti sui sistemi biologici, e nello specifico sul sistema riproduttivo, è che non esiste un chiaro meccanismo per il quale tali Radiazioni li influenzerebbero. Pertanto, quei ricercatori hanno analizzato gli effetti documentati delle Radiazioni Elettromagnetiche in RadioFrequenza sul sistema riproduttivo maschile e preso in considerazione tutte le osservazioni comuni che potessero fornire spunti su un possibile meccanismo.

Di 27 studi analizzati, ben 21(!) hanno mostrato chiaramente una correlazione tra esposizione alle Radiazioni Elettromagnetiche in RadioFrequenza ed effetti negativi sugli spermatozoi, con conseguente danno al sistema riproduttivo maschile.

Fra i succitati 21 studi, 11 dei 15 che hanno investigato la motilità degli spermatozoi ne hanno evidenziato una significativa riduzione; tutti dei 7 che hanno misurato la produzione di Specie Reattive dell’Ossigeno ne hanno documentato livelli elevati; 4 dei 5 che hanno testato il danno al DNA ne hanno evidenziato la presenza.
In aggiunta, tutti e 6 gli studi che hanno investigato la riduzione dei livelli di antiossidanti hanno evidenziato questo fenomeno.

Alla luce di tutto questo, è stato ipotizzato un meccanismo di danno cellulare in due fasi in cui la Radiazione Elettromagnetica in RadioFrequenza, impattati i sistemi cellulari, porterebbe ad una disfunzione mitocondriale (N.B. La stessa evidenziata in altri studi a livello cerebrale, con conseguente danno neuronale) seguita da una elevata produzione di ROS (Specie Reattive dell’Ossigeno).

Forse una campagna seria da parte del Ministero della Salute sul problema della fertilità (vedi Fertility Day), dovrebbe tenere presente questo fondamentale fattore eziologico di infertilità!
Non credete?]

Reproduction. 2016 Sep 6. pii: REP-16-0126. [Epub ahead of print]

By:

Houston B1, Nixon B2, King BV3, De Iuliis G4, Aitken RJ5.

1B Houston, School of Environmental and Life Sciences, University of Newcastle, Callaghan, 2308, Australia brendan.houston@uon.edu.au.
2B Nixon, Biological Sciences, University of Newcastle, Newcastle, 2308, Australia.
3B King, School of Mathematical and Physical Sciences, University of Newcastle, Newcastle, Australia.
4G De Iuliis, Biological Sciences, University of Newcastle, NSW, CALLAGHAN, 2308, Australia.
5R Aitken, School of Environmental and Life Sciences, University of Newcastle, Callaghan, 2308, Australia.

ARTICLE INFO

Article history
Published online before print: 6 September 2016

ABSTRACT

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.

Source/Fonte:

http://www.ncbi.nlm.nih.gov/pubmed/27601711

Full-text PDF file/File PDF del lavoro completo:

http://www.reproduction-online.org/content/early/2016/09/06/REP-16-0126.full.pdf

Informazioni Ricerca scientifica • • • • • • • • • • • • • • • • • • By Alessandro Cinciripini 0 Comments

Studies that Show a Risk of Cancer from Exposures to Cellphone Radiation

[Bella presentazione di Lloyd Morgan sugli effetti delle radiazioni emesse dal telefono cellulare in termini di carcinogenesi (a livello cerebrale e del nervo acustico – gliomi e neurinomi, della ghiandola parotide, della mammella ed altri)  e di detrimento sulla spermatogenesi.]

2nd Neuroscience Stereology and Scientific Writing
Neuroscience
15 March 2016, Arusha Tanzania

L. Lloyd Morgan
Sr. Research Fellow
Environmental Health Trust

http://www.environmentalhealthtrust.org/

Click on the picture below to access the file/Cliccare sulla immagine sottostante per accedere al file:

Elettrosensibili

Source/Fonte:

http://anss2016.org/sayfa/8

Notizie dal mondo • • • • • • • • • • • • • By Alessandro Cinciripini 0 Comments

Why men should NEVER put their phone in their pocket: Study shows how prolonged exposure to radiation steadily destroys sperm

[RADIOFREQUENZE E DANNI AGLI SPERMATOZOI: ECCO PERCHE’ GLI UOMINI NON DOVREBBERO TENERE IL TELEFONINO IN TASCA.

Una recente revisione di 21 studi (che presto pubblicheremo sul nostro sito) ha trovato un legame tra emissioni dei cellulari e conta degli spermatozoi.
E’ risultato che l’esposizione prolungata alle radiazioni distrugge lo sperma in modo permanente.

La sanità pubblica pare riluttante a dire che i telefonini sicuramente danneggiano gli spermatozoi – non vi è attualmente alcun modo per dimostrare esattamente come le radiazioni e il numero di spermatozoi siano legati – ma gli esperti avvertono che questa revisione fornisce prove abbastanza convincenti del perché gli uomini non dovrebbero tenere i loro telefoni cellulari in tasca!

Non possiamo e non dobbiamo aspettare di conoscere nel dettaglio i meccanismi patogenetici del danno da Microonde per iniziare a prendere precauzioni, in quanto potrebbe essere troppo tardi!

Per questo motivo, ci permettiamo di dire che la stessa cosa deve valere per le donne, le quali non dovrebbero tenere dispositivi Wireless vicino alle loro gonadi e soprattutto vicino alla loro pancia quando sono gravide.

Gli effetti dei danni, che purtroppo si stanno verificando inesorabilmente ogni giorno, ancora non si vedono, ma fra qualche anno il conto da pagare sarà elevatissimo.]

9 September 2016 – “www.dailymail.co.uk”, by MIA DE GRAAF FOR DAILYMAIL.COM

  • New review of 21 studies found link between phones and sperm count
  • Public health are hesitant to say phones definitely harm sperm – there is currently no way to prove exactly how radiation and sperm count are tied
  • But experts warn this review provides compelling enough evidence that men should not keep their cell phones in their pockets 

Despite all the fears about cell phones and radiation, most of us still put our phones in our jean pockets.

It’s easy, convenient, and any bad effects are impossible to see.

But a new study warns there is conclusive evidence that men in particular need to find another storage spot.

A systemic review of 21 research papers on radiation shows phones placed close to a man’s genitals for a prolonged period of time steadily drive down sperm count.

Danger: A review of years of evidence shows men are putting themselves at risk by storing their phones in their front pockets
Danger: A review of years of evidence shows men are putting themselves at risk by storing their phones in their front pockets

And among the studies, many suggest surviving sperm could be DMA-damaged.

The biological phenomenon is currently under fierce debate since scientists have no way to explain how non-ionizing radiation influences the body.

Without that link, many public health investigators are hesitant to say definitively that cell phones harm sperm.

However, a new review by a team at Australia’s University of Newcastle has collated years of evidence in an attempt to both emphasize the trend, and to identify potential causes.

And since 14 per cent of the world struggle to conceive – with male infertility involved 40 per cent of the time – they warn a small detail such as where one stores their phone could be crucial.

‘While this subject remains a topic of active debate, this review has considered the growing body of evidence suggesting a possible role for RF-EMR [radiofrequency electromagnetic radiation] induced damage of the male germ line,’ the authors write.

‘In a majority of studies, this damage has been characterized by loss of sperm motility and viability as well as the induction of ROS generation and DNA damage.’

The authors reviewed 27 studies. Twenty-one of them showed a causal link between cell phone radiation and sperm damage.

Ten studies were examined including 1,492 human sperm samples.

Exposure to mobile phones was found to be associated with a significant eight per cent reduction in sperm motility and nine per cent reduction in sperm viability.

The data are hardly surprising, the authors say, given the 'unique vulnerability of the highly specialized sperm cell'
The data are hardly surprising, the authors say, given the ‘unique vulnerability of the highly specialized sperm cell’

The effects on sperm concentration were more equivocal.

The results were consistent across experimental laboratory studies and correlational observational studies.

The data are hardly surprising, the authors say, given the ‘unique vulnerability of the highly specialized sperm cell’.

But by continuing to store phones in pockets, the male population is ignoring ‘the future health burden that may be created if conception proceeds with defective, DNA-damaged spermatozoa’.

Dr Joel Moskowitz, of UC Berkeley’s public health school, explained to Daily Mail Online that this review is a pivotal step towards broader global understanding about the dangers of our phones.

In 2011, the World Health Organization classified cell phone radiation as a possible 2B carcinogen.

It was the first major recognition that cell phones could have a detrimental effect on our bodies.

However, while studies have shown a correlation between sperm count depletion and cell phone radiation, there is a lack of research and concrete findings into the link between the two.

Regardless, Dr Moskowitz warned, the University of Newcastle review is clear evidence that ‘men should not store their cellphones near their genitals’.

‘In this line of research more intense cellphone radiation leads to more sperm damage,’ he added.

Source/Fonte:

Why-men-NEVER-phone-pocket-Study-shows-prolonged-exposure-radiation-steadily-destroys-sperm