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

martedì 20 novembre 2018

EMF ed infertilità

Qui c'è una raccolta di decine di lavori scientifici che testimoniano una chiara relazione tra campi elettromagnetici ed infertilità: qualità e mobilità degli spermatozoi.

Altro che qualità della vita, alcool, ...  o forse saranno concause.

https://www.saferemr.com/2015/09/effect-of-mobile-phones-on-sperm.html


martedì 13 settembre 2016

Comunicato Stampa inviato il 10.9.16

Il telefono cellulare rende impotenti:

The effects of radiofrequency electromagnetic radiation on sperm function

  1. Brendan Houston
  2. Brett Nixon
  3. Bruce Victor King
  4. Geoffry De Iuliis and
  5. Robert John Aitken
-Author Affiliations
  1. B Houston, School of Environmental and Life Sciences, University of Newcastle, Callaghan, 2308, Australia
  2. B Nixon, Biological Sciences, University of Newcastle, Newcastle, 2308, Australia
  3. B King, School of Mathematical and Physical Sciences, University of Newcastle, Newcastle, Australia
  4. G De Iuliis, Biological Sciences, University of Newcastle, NSW, CALLAGHAN, 2308, Australia
  5. R Aitken, School of Environmental and Life Sciences, University of Newcastle, Callaghan, 2308, Australia
pubblicato il 6.9.2016 su The Journal of the Society for Reproduction and Fertility
conferma in modo assoluto e definitivo che le radiofrequenze provocano gravi danni alla fertilità maschile.  Vedere https://is.gd/IUFZD9  .
Mai tante conferme che arrivano da centinaia di lavori scientifici provenienti da tutto il mondo.
Le Pubbliche Autorità che cosa aspettano ?   Il placet della industria delle telefonia e della elettronica ?!    forse si !
Cordiali saluti

venerdì 11 marzo 2016

Altro importante lavoro che conferma la relazione tra uso del cellulare e infertililità

Riporto i riferimenti a questo studio epidemiologico cinese che studia la relazione esistente tra volume di traffico dati attraverso l'uso dei cellulari e la qualità dello sperma, attraverso la diminuzione del volume, della concentrazione e della conta .

C'è da aggiungere come scientificamente si sottolinea che se si utilizzassero criteri di sicurezza, sempre più riportati - magari con caratteri piccolissimi - nelle istruzioni presenti nella scatola del cellulare, che dicono di tenere il telefono non a contatto con il corpo,        il danno potrebbe essere ridotto. Ma le società di telefonia sono fermamente contrarie a programmi di informazione (uso di etichette di segnalazione di pericolo):  è ben nota la potentissima azione legale imbastita dalla CTIA americana (una sorta di confindustria della telefonia) contro il comune di Berkeley perché aveva emesso una direttiva di obbligo di etichettatura ... questo in USA ! 
E in Italia ?  La legge 36/2001 ha previsto la etichettatura, ma in questi 15 anni il Ministero dell'Ambiente ... non ha trovato il tempo per emettere un decreto legislativo per introdurre la etichettatura !!!  come mai ?! 




Joel M. Moskowitz comments: This cohort study adds to the body of peer-reviewed research which finds that cell phone use causes sperm damage. For other recently published studies and reviews of this research see Electromagnetic Radiation Safety.
This reproductive health risk would likely be ameliorated if cell phone users abided by manufacturers' safety instructions to keep the phones away from their bodies,

The cell phone "right to know" ordinance adopted by the city of Berkeley is an effort to get consumers to pay attention to these instructions. Unfortunately, the cell phone industry represented by the CTIA--The Wireless Association does not want the public to see this safety information and has sued the City. The Natural Resources Defense Council (NRDC) filed a brief in support of the City. The Association of National Advertisers has just filed a brief in support of the CTIA. The advertisers recommend that the City buy advertising if it wishes to inform consumers to read the cellphone manufacturers' safety instructions.
Although the research on cell phone use and sperm damage has received considerable media coverage in many countries, mainstream media in the U.S. has  largely ignored this health risk.

--

Effects of cell phone use on semen parameters: Results from the MARHCS cohort study in Chongqing, China


Zhang G, Yan H, Chen Q, Liu K, Ling X, Sun L, Zhou N, Wang Z, Zou P, Wang X, Tan L, Cui Z, Zhou Z, Liu J, Ao L, Cao J. Effects of cell phone use on semen parameters: Results from the MARHCS cohort study in Chongqing, China. Environ Int. 2016 Mar 4;91:116-121. doi: 10.1016/j.envint.2016.02.028. [Epub ahead of print]

Abstract

Epidemiological and experimental evidence for detrimental effects of cell phone use on semen quality is still equivocal. And that recruiting participants from infertility clinic not from general population may raise the possibility of a selection bias.

To investigate effects of cell phone use on semen parameters in a general population, we screened and documented the cell phone use information of 794 young men from the Male Reproductive Health in Chongqing College students (MARHCS) cohort study in 2013, followed by 666 and 568 in 2014 and 2015, respectively.

In the univariate regression analyses, we found that the daily duration of talking on the cell phone was significantly associated with decreased semen parameters, including sperm concentration [β coefficient=-6.32% per unit daily duration of talking on the cell phone (h); 95% confidence interval (CI), -11.94, -0.34] and total sperm count (-8.23; 95% CI, -14.38, -1.63) in 2013; semen volume (-8.37; 95% CI, -15.93, -0.13) and total sperm count (-16.59; 95% CI, -29.91, -0.73) in 2015]. Internet use via cellular networks was also associated with decreased sperm concentration and total sperm counts in 2013 and decreased semen volume in 2015.
Multivariate analyses were used to adjust for the effects of potential confounders, and significant negative associations between internet use and semen parameters remained. Consistent but nonsignificant negative associations between talking on the cell phone and semen parameters persisted throughout the three study years, and the negative association was statistically significant in a mixed model that considered all three years of data on talking on the cell phone and semen quality.

Our results showed that certain aspects of cell phone use may negatively affect sperm quality in men by decreasing the semen volume, sperm concentration, or sperm count, thus impairing male fertility.

http://1.usa.gov/1pvU2YV

Highlights

• Certain aspects of cell phone use negatively affect semen quality.
• Internet use via cellular networks has become an important risk to semen quality.
• The use of 3G or more advanced networks might have less damage to human sperm.
• Recruiting subjects from a general population makes the study typical and relevant.

Excerpts

In the present study, the daily duration of internet use via cellular networks was found to be associated with decreased sperm concentrations and decreased sperm counts in 2013. Furthermore, data traffic, an accurate quantification of internet use via cellular networks, was found to be associated with decreased semen volumes and decreased sperm counts in 2014 and 2015. This result indicated that internet access via cellular networks should be sufficiently taken into account in future studies concerning the effects of cell phone use on semen quality.

Conclusion

Our results suggest that certain aspects of cell phone use may negatively affect sperm quality in men by decreasing the semen volume, sperm concentration, or sperm count, thus impairing male fertility. Especially, internet access via cellular networks should be sufficiently taken into account in future studies. We advise men with a pregnancy plan to avoid extensive use of cell phones. To identify the effects of cell phone use on semen quality, additional well-designed population studies are needed.

--

Effect of Mobile Phones on Sperm Quality

http://bit.ly/saferemrsperm
Pregnancy and Wireless Radiation Riskshttp://bit.ly/saferemrprenatal

Samsung Galaxy S7 and S7 Edge Specific Absorption Rates (SAR)
http://bit.ly/galaxyS7SAR

--

Joel M. Moskowitz, Ph.D., Director
Center for Family and Community Health
School of Public Health
University of California, Berkeley

venerdì 3 gennaio 2014

ancora sulla fertilità

E' stato appena pubblicato uno studio (meta analisi) che riprende vari similari ricerche sulla qualità dello sperma per effetto delle radiofrequenze.
Si conclude che gli effetti possono essere diversificati ma che esiste una chiara relazione tra uso del cellulare e la qualità degli spermatozoi.

... purtroppo queste note sicuramente non arrivano ai ragazzi che hanno spesso l'abitudine di infilare il cellulare nella tasca anteriore dei jeans ...!!     

Questo è un invito a fare educazione sanitaria !.



F1000Res. 2013 Feb 12;2. doi: 10.12688/f1000research.2-40.

Mobile phones affect multiple sperm quality traits: a meta-analysis.

Dama MS, Bhat MN.

Author information:
Institute of Wildlife Veterinary Research, Kodagu District, Karnataka, India.

As mobile phone usage is growing rapidly, there is a need for a comprehensive
analysis of the literature to inform scientific debates about the adverse effects
of mobile phone radiation on sperm quality traits. Therefore, we conducted a
meta-analysis of the eligible published research studies on human males of
reproductive age. Eleven studies were eligible for this analysis. Based on the
meta-analysis, mobile phone use was significantly associated with deterioration
in semen quality (Hedges's g = -0.547; 95% CI: -0.713, -0.382; p < 0.001). The
traits particularly affected adversely were sperm concentration, sperm
morphology, sperm motility, proportion of non-progressive motile sperm (%),
proportion of slow progressive motile sperm (%), and sperm viability. Direct
exposure of spermatozoa to mobile phone radiation with in vitro study designs
also significantly deteriorated the sperm quality (Hedges's g = -2.233; 95% CI:
-2.758, -1.708; p < 0.001), by reducing straight line velocity, fast progressive
motility, Hypo-osmotic swelling (HOS) test score, major axis (µm), minor axis
(µm), total sperm motility, perimeter (µm), area (µm (2)), average path velocity,
curvilinear velocity, motile spermatozoa, and  acrosome reacted spermatozoa (%).
The strength of evidence for the different outcomes varied from very low to very
high. The analysis shows that mobile phone use is possibly associated with a
number of deleterious effects on the spermatozoa.

PMCID: PMC3752730
PMID: 24358850  [PubMed]

venerdì 19 luglio 2013

Poderoso documento (review) canadese di dubbia qualità

Porto alla vostra conoscenza un documento prodotto da

British Columbia Centre for Disease Control (BCCDC)
Environmental Health Services
655 West 12th Avenue
Vancouver, BC
V5Z 4R4 Canada
 
National Collaborating Centre for Environmental Health (NCCEH)
Broadway Plaza
200 - 601 West Broadway
Vancouver, BC
V5Z 3J2 Canada
 
ovvero due Agenzie statali canadesi preposte allo studio dell'ambiente
 
 
che contiene uno 'strumento di lavoro' per chi si interessa all'ambiente e ai  possibili pericoli derivanti da radiofrequenze.
 
Il documento è di quasi 400 pagine e tratta con  dettagli la materia.
 
Ovviamente le conclusion I  sono in linea con le solite affermazioni "governative":   'dati contradditori ... etc.'  in quanto prende in considerazione I vari lavori  tabellandone  I risultati,  senza porre alcuna valutazione di merito ad es. sulla qualità della ricerca .


Mentre per la incidenza dell'uso del cellular con la conclamata ridotta fertilità, dà una visione più 'convinta'

lunedì 10 gennaio 2011

Effetto dei cellulari sulla fertilità maschile

Recensione a cura di A.M.I.C.A.

Uno studio dell’Università di Szeged in Ungheria, presentato alla Società Europea di Riproduzione Umana ed Embriologia con sede a Berlino e pubblicato su Archives of Andrology (sett.–ott.; 51 [5]: 385-93), ha scoperto, analizzando un campione di 221 uomini (di cui alcuni con cellulare acceso e altri spento), che la radiazione emessa da un cellulare può ridurre la quantità totale di sperma del 30%.