{"id":4409,"date":"2021-11-27T00:43:25","date_gmt":"2021-11-27T05:43:25","guid":{"rendered":"https:\/\/abudinen.com\/blog\/?p=4409"},"modified":"2021-11-27T00:43:26","modified_gmt":"2021-11-27T05:43:26","slug":"graphene","status":"publish","type":"post","link":"https:\/\/abudinen.com\/blog\/2021\/11\/27\/graphene\/","title":{"rendered":"Graphene"},"content":{"rendered":"\nSYSTEMATIC REVIEW article Front. Physiol., 24 September 2021 |\u00a0\n\n\n\nEffect of Radiation Emitted by Wireless Devices on Male Reproductive Hormones: A Systematic Review\n\n\n\nSofwatul Mokhtarah Maluin1,2, Khairul Osman3, Farah Hanan Fathihah Jaffar1 and Siti Fatimah Ibrahim1*\n\n\n\n1Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur, Malaysia2Department of Physiology, Faculty of Medicine and Health Sciences, Universiti Sains Islam Malaysia (USIM), Nilai, Malaysia3Centre of Diagnostic Science and Applied Health, Faculty of Health Sciences, Universiti Kebangsaan Malaysia (UKM), Bangi, Malaysia\n\n\n\nExposure to radiofrequency electromagnetic radiation (RF-EMR) from various wireless devices has increased dramatically with the advancement of technology. One of the most vulnerable organs to the RF-EMR is the testes. This is due to the fact that testicular tissues are more susceptible to oxidative stress due to a high rate of cell division and mitochondrial oxygen consumption. As a result of extensive cell proliferation, replication errors occur, resulting in DNA fragmentation in the sperm. While high oxygen consumption increases the level of oxidative phosphorylation by-products (free radicals) in the mitochondria. Furthermore, due to its inability to effectively dissipate excess heat, testes are also susceptible to thermal effects from RF-EMR exposure. As a result, pe[...x]<\/span>
ople are concerned about its impact on male reproductive function. The aim of this article was to conduct a review of literature on the effects of RF-EMR emitted by wireless devices on male reproductive hormones in experimental animals and humans. According to the findings of the studies, RF-EMR emitted by mobile phones and Wi-Fi devices can cause testosterone reduction. However, the effect on gonadotrophic hormones (follicle-stimulating hormone and luteinizing hormone) is inconclusive. These findings were influenced by several factors, which can influence energy absorption and the biological effect of RF-EMR. The effect of RF-EMR in the majority of animal and human studies appeared to be related to the duration of mobile phone use. Thus, limiting the use of wireless devices is recommended. <\/p>\n\n\n\n

Occupational Diseases and Environmental Medicine > Vol.4 No.3, August 2016Impact of Cellphone Radiation on Sexual Behavior and Serum Concentration of Testosterone and LH in Male MiceZhi-Jun Zang1<\/sup>, Su-Yun Ji2<\/sup>, Shi-Zong Huang1<\/sup>, Mei-Hua Jiang3<\/sup>, You-Qiang Fang4*<\/sup>
1<\/sup>Department of Infertility and Sexual Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
2<\/sup>Department of Dermatology, Guangdong Provincial Dermatology Hospital, Guangzhou, China.
3<\/sup>Department of Anatomy, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China.
4<\/sup>Department of Urology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
DOI: <\/strong>10.4236\/odem.2016.43007PDFHTML<\/strong> XML<\/strong>1,468<\/strong> Downloads   2,466<\/strong> Views   Citations<\/p>\n\n\n\n

Abstract<\/p>\n\n\n\n

Background: Cellphone radiation (CR) has been reported to be related to higher risk of many health problems, but if CR can impair sexual behavior and testosterone synthesis has seldom been studied. Objective: To evaluate the effects of CR on testosterone and luteinizing hormone (LH) levels and sexual behaviors of male mice. Methods: Forty 3-month-old male mice, 22 – 25 g, were randomly allocated into four equal groups (n = 10 per group): the control group and three CR exposure groups including 8-hour group, 16-hour group and 24-hour group. Each mouse received different dose of CR exposure for 30 consecutive days. Sexual behaviors and testosterone and LH levels in serum were measured at the end of experiment. Furthermore, we also observed the weights of reproductive organs of each group, including testis, epididymis and seminal vesicle. Results: The mount latency and intromission latency in 24-hour group were significant higher than the control (both P < 0.01), while no obvious changes were seen in 8-hour group and 16-hour group (all P > 0.05). No difference in ejaculation latency existed among each group after the experiment (all P > 0.05). The frequency of mount and intromission in 24-hour group was statistically significantly lower than that of the control group (P < 0.05 and P < 0.01, respectively). No obvious change in the frequency of mount and intromission of the 8-hour group and 16-hour group was seen (all P > 0.05). Only the copulatory efficacy in the 24-hour group was statistically lower than the control group (P < 0.05). The serum levels of testosterone and LH in the 24-hour group were obviously higher than the control group (testosterone level: P < 0.05; LH level: P < 0.01). No significant differences were seen among the other two experimental groups and the control group (all P > 0.05). After the exposure of CR, the changes in the weights of sexual organs in the 24-hour group were significant compared with the control (testis weights, relative testis weight, epididymis weight, the weight of seminal vesicle, and the relative weight of seminal vesicle, all P < 0.01; the relative epididymis weight, P < 0.05). Conclusions: High dose exposure of CR can decline the testosterone and LH levels in mice and inhibit their sexual behaviors.<\/p>\n\n\n\n

Keywords<\/p>\n\n\n\n

Cellphone Radiation, Testosterone, Luteinizing Hormone, Sexual Behavior<\/p>\n\n\n\n

Share and Cite:Zang, Z. , Ji, S. , Huang, S. , Jiang, M. and Fang, Y. (2016) Impact of Cellphone Radiation on Sexual Behavior and Serum Concentration of Testosterone and LH in Male Mice. Occupational Diseases and Environmental Medicine<\/em>, 4<\/strong>, 56-62. doi: 10.4236\/odem.2016.43007.<\/p>\n\n\n\n

Received 26 July 2016; accepted 13 August 2016; published 16 August 2016 <\/p>\n\n\n\n

2008, Number 4 Rev Mex Urol 2008; 68 (4)<\/p>\n\n\n\n

Orgasmic capacity increase in women undergoing electromagnetic wave urinary incontinence treatment <\/h2>\n\n\n\n

P\u00e9rez-Mart\u00ednez C1, Vargas-D\u00edaz IB1, Silva H <\/p>\n\n\n\n

REVIEW <\/p>\n\n\n\n

Wi-Fi is an important threat to human health\u2606<\/h2>\n\n\n\n

Author links open overlay panelMartin L.PallWashington State University, 638 NE 41st Avenue, Portland, OR 97232-3312, USA<\/p>\n\n\n\n

Received 22 September 2017, Revised 20 January 2018, Accepted 23 January 2018, Available online 21 March 2018.<\/p>\n\n\n\n

Highlights<\/h3>\n\n\n\n

7 effects have each been repeatedly reported following Wi-Fi & other EMF exposures.\u2022<\/p>\n\n\n\n

Established Wi-Fi effects, include apoptosis, oxidat. stress &:\u2022<\/p>\n\n\n\n

testis\/sperm dysfunct; Neuropsych; DNA impact; hormone change; Ca2+ rise.\u2022<\/p>\n\n\n\n

Wi-Fi is thought to act via voltage-gated calcium channel activation.\u2022<\/p>\n\n\n\n

One claim of no Wi-Fi effects was found to be deeply flawed.<\/p>\n\n\n\n

Repeated Wi-Fi studies show that Wi-Fi causes oxidative stress, sperm\/testicular damage, neuropsychiatric effects including EEG changes, apoptosis, cellular DNA damage, endocrine changes, and calcium overload. Each of these effects are also caused by exposures to other microwave frequency EMFs, with each such effect being documented in from 10 to 16 reviews. Therefore, each of these seven EMF effects are established effects of Wi-Fi and of other microwave frequency EMFs. Each of these seven is also produced by downstream effects of the main action of such EMFs, voltage-gated calcium channel (VGCC) activation. While VGCC activation via EMF interaction with the VGCC voltage sensor seems to be the predominant mechanism of action of EMFs, other mechanisms appear to have minor roles. Minor roles include activation of other voltage-gated ion channels, calcium cyclotron resonance and the geomagnetic magnetoreception mechanism. Five properties of non-thermal EMF effects are discussed. These are that pulsed EMFs are, in most cases, more active than are non-pulsed EMFs; artificial EMFs are polarized and such polarized EMFs are much more active than non-polarized EMFs; dose-response curves are non-linear and non-monotone; EMF effects are often cumulative; and EMFs may impact young people more than adults. These general findings and data presented earlier on Wi-Fi effects were used to assess the Foster and Moulder (F&M) review of Wi-Fi. The F&M study claimed that there were seven important studies of Wi-Fi that each showed no effect. However, none of these were Wi-Fi studies, with each differing from genuine Wi-Fi in three distinct ways. F&M could, at most conclude that there was no statistically significant evidence of an effect. The tiny numbers studied in each of these seven F&M-linked studies show that each of them lack power to make any substantive conclusions. In conclusion, there are seven repeatedly found Wi-Fi effects which have also been shown to be caused by other similar EMF exposures. Each of the seven should be considered, therefore, as established effects of Wi-Fi.<\/p>\n\n\n\n

<\/p>\n\n\n\n

Patient-reported sexual toxicity after radiation therapy in long-term prostate cancer survivors<\/h2>\n\n\n\n

C E Olsson, D Alsadius, […], and G Steineck <\/p>\n\n\n\n

Pronto consumiremos alimentos con grafeno comestible<\/h2>\n\n\n\n

Este revolucionario material tambi\u00e9n se integrar\u00e1 en ciertos alimentos JORGE SANZ FERN\u00c1NDEZ 2 MAR 2018 – 10:44 CET <\/p>\n\n\n\n

Graphene-based edible electronics will let you make cereal circuits<\/h2>\n\n\n\n

John Biggs@johnbiggs \/ 11:03 AM GMT-5\u2022March 1, 2018 Researchers at the have successfully etched edible circuits onto the surface of food, paving the way for RFID tagged edibles that can help us track food from farm to tummy. The project, which uses something called laser-induced graphene (LIG), is a process that creates a \u201cfoam made out of tiny cross-linked graphene flakes\u201d that can carry electricity through carbon-rich products like bread, potatoes, and cardboard.<\/p>\n\n\n\n

\u201cOverall, the process demonstrated that LIG can be burned into paper, cardboard, cloth, coal, potatoes, coconuts, toasted bread and other foods,\u201d wrote the researchers who hail from Rice University\u2019s Smalley-Curl Institute and Ben-Gurion University of the Negev.<\/p>\n\n\n\n

The process can embed or burn patterns that could be used as supercapacitors, radio frequency identification (RFID) antennas or biological sensors. Based on these results, the researchers theorized that any substance with a reasonable amount of carbon can be turned into graphene. To test this theory, Tour\u2019s team sought to burn LIG into food, cardboard and several other everyday, carbon-based materials.<\/p><\/blockquote>\n\n\n\n

Presumably you won\u2019t be etching power sources and other components onto your Pop Tarts but this early research into edible circuits could pave the way for smarter food. <\/p>\n\n\n\n

  • Review<\/li>
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