标题: 兼聽則明：高科技還是人爲的人类灾難？ [打印本页] 作者: JOEL 时间: 2012-10-3 17:07 标题: 兼聽則明：高科技還是人爲的人类灾難？
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UNDER THE OPEN VISION: HI-TECH OR HUMAN-MADE DISASTER? 9 }& t) t0 i- t, ^$ x0 e 6 D! G& h' |8 `News # ?7 T6 l8 o) b7 uDanish sperm donation law tightened after donor has passed on rare genetic disease" R w7 i' F4 Z0 u; `
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01 October 2012: U$ ` G- o( j" m
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By Ayesha Ahmad/ V W l: @7 U' U
Appeared in BioNews 675 M7 Y8 {/ g+ z* `1 M4 P( O | F
' A) u& Y) v; c2 v5 Q: A0 K. @2 ~6 KThe Danish Government is currently reviewing its guidelines on sperm donation policies following the discovery that a donor has passed on a rare genetic condition to at least five children. % `$ a$ g$ N8 B( S - V; V8 g( x' S. \. X* EThe donor, known only as 'donor 7042', is believed to have fathered 43 children in ten countries, and had his sperm distributed to 14 clinics. Of the 43 children conceived using the donor's sperm, at least five have inherited the nerve disorder Neurofibromatosis type 1 (NF1) also known as Von Recklinghausen's disease. 5 k0 Y. @2 L& o: L 3 g# W; F. ]# u+ [7 B, M2 g: T4 GNF1 is caused by a genetic mutation that shows autosomal dominant inheritance, such that children of a parent carrying this mutation have a fifty percent chance of inheriting the disorder. However in some cases of the disease, the mutation is not inherited from the parents and arises spontaneously. NF1 is a condition that is characterised by benign tumours, bone deformity, high blood pressure and learning difficulties. There is no cure but symptoms may be managed.4 {0 i z! y* t( J
s* m2 h, m4 F/ K- r$ c9 L'In the case of these five, we know the disorder came from the donor even though the disorder is not always transmitted by a person's parents', said Mr Peter Bower, director general of the clinic Nordisk Cryobank in Copenhagen, where donor 7042 made his sperm donation. / o$ h# t6 s$ C% l. |" C0 d ) r7 u2 J- ^% \& UAlthough the clinic was first told in June 2009 that one of the donor's children had been diagnosed with NF1, the donor's sperm was subsequently used in further inseminations. 'Our team of physicians and our geneticist looked at the case but didn't consider there to be reason enough to suspect it was the donor and therefore no reason to stop the use of his sperm', said Mr Bower to the Swedish news outlet, The Local.6 Z% S6 i5 Y" w: p
& B) \) S' z1 Y# U1 rThe clinic's website states that all sperm is screened for cystic fibrosis and HIV but does not say whether the screening also includes NF1. 3 P( U- @$ r8 N8 `) N2 S) ] ) \0 H& M4 p" |- R, Y8 YDenmark will introducing new rules as a response to this case. Each donor will be allowed to have his sperm used in a maximum of 12 inseminations from 1 October. Although donor 7042 fathered 43 children, the limit at the time was 25 and it is unknown how the donor was able to exceed this.9 k7 L! C9 [. M+ F+ q; T7 ]
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Nordisk Cryobank currently pays 300 Kroner (£32) per successful sperm donation. Ms Sonja Pedersen, the mother of an affected child, told the BBC: 'We are dealing with a lot of children, but there is also the economical aspect. They earn a lot of money doing this. And one has a responsibility to make sure that the product, so to speak, is all right'.$ {1 V' _- C( `# x" _; o4 p7 l5 w* |
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SOURCES & REFERENCES! t% j" `) b, q W* Y$ E" x9 [: m
Danish sperm donor passes on nerve disorder to at least five children 4 l5 e6 p/ n5 ~7 lIndependent | 26 September 2012! |8 i3 x' ]% v3 j9 X- g
3 J% s# F" {( C/ H( TDanish sperm donor passes rare genetic disorder to at least five of the 43 babies he is thought to have fathered in ten countries; R% {% `' b- F; D% k, C
Mail Online | 25 September 2012 ' ^+ f5 E& `" ?6 q: U+ G 0 g6 x8 e {; F( n% x
Denmark tightens sperm donation law after 'Donor 7042' passes rare genetic disease to 5 babies 5 G/ x+ J6 y6 d; K, y+ ^Medical Daily | 25 September 20129 z" N, h3 b: p. {# X0 `
/ W6 C$ Z/ Z4 R1 M0 A+ |) VDenmark tightens sperm donor law after NF1 transmissions , S6 D( Q/ X" QBBC News | 25 September 2012 ]1 D5 \ }& `8 } ! ~) q- M3 _, V# _" v& F6 K 3 m* B* n8 T8 i) T- J0 t1 gRELATED ARTICLES FROM THE BIONEWS ARCHIVE+ {& B# h1 p7 F http://www.bionews.org.uk/page_1 ... 3Gr&PPID=186913