Wetenschappers kweken stotterende muizen

Alle nieuwigheden, wetenschappelijke onderzoeken, nieuwe theorieën, behandeligen, benaderingen en inzichten.
BSV is niet verantwoordelijk voor de juistheid van de inhoud, en neemt geen standpunt daarover in.
Het is niet de bedoeling om hier therapieën te promoten !

Wetenschappers kweken stotterende muizen

Berichtdoor phunkinit2 » di 19 jul 2016, 10:13

Amerikaanse wetenschappers zijn erin geslaagd om stotterende muizen te kweken.

De muizen zijn door middel van genetische modificatie uitgerust met het gen Gnptab, dat bij mensen is gelinkt aan de neiging tot stotteren.

De muizen die het gen dragen, maken minder geluid dan hun gezonde soortgenoten en piepen met relatief veel tussenpauzes.

Dat hebben Amerikaanse wetenschappers bekendgemaakt op de conferentie Neuroscience 2015

Gepiep

De onderzoekers analyseerden het gepiep van de genetisch gemodificeerde muizen met behulp van speciale software die ook menselijk gestotter kan herkennen aan het langzame spreektempo en het grote aantal pauzes. ​Dat meldt de nieuwssite van het wetenschappelijk tijdschrift Science.

Stotterende mensen stoten in een minuut gemiddeld negentig verschillende klanken uit, terwijl niet-stotterende mensen er 125 produceren.

Uit het nieuwe onderzoek blijkt dat de genetisch gemodificeerde muizen tachtig klanken produceren per drieënhalve minuut, terwijl hun 'normale' soortgenoten in die tijd 190 vocalisaties uitstoten. Kortom: de dieren lijken te stotteren door het gen Gnptab.

Oorzaak


De nieuwe bevindingen kunnen wetenschappers mogelijk helpen om de oorzaak van gestotter bij mensen beter in kaart te brengen.

Het 'stottergen' Gnptab werd vorig jaar ontdekt door neurowetenschapper Dennis Drayna van het US Institute of Deafness and Other Communication Disorders.

Drayna vermoedt dat stotteren slechts gedeeltelijk wordt veroorzaakt door erfelijke factoren. "Op basis van een ruwe schatting denk ik dat ongeveer de helft van al het gestotter bij mensen wordt veroorzaakt door dingen die overerfelijk zijn", verklaarde hij vorig jaar in de Britse krant The Guardian.

Ongeveer vijf procent van alle kinderen stottert regelmatig. Bij het merendeel gaat de stoornis vanzelf over. Wereldwijd stottert ongeveer 1 procent van alle volwassenen.

Door: NU.nl/Dennis Rijnvis
bron : http://www.nu.nl/wetenschap/4149105/wet ... izen-.html
phunkinit2
 
Berichten: 32
Geregistreerd: zo 05 apr 2015, 10:45

while Tyus Jones tallied 15 points

Berichtdoor zft123 » di 03 jul 2018, 11:11

HOUSTON -- Texans Pro Bowl linebacker Brian Cushing is out for the season with a left knee injury that will require surgery. Cushing was injured in the third quarter of Sundays loss at Kansas City during a low block by running back Jamaal Charles. Its the second straight year Cushing has been lost for the season with a left knee injury. He tore the anterior cruciate ligament in the same knee in Week 5 last season. Its a devastating blow for a team that has lost five games in a row heading into its bye on Sunday. "I think he was playing at a defensive player of the year-type of level," coach Gary Kubiak said. "Then here he goes again, hes got to go through this. So I know its very difficult for him ... (and) I know Cush will do everything he can to get back. But you hate to see anybody go through that especially twice now." The Texans signed Cushing to a six-year contract worth $55.6 million before this season. Kubiak said injuries to left tackle Duane Brown (ankle), running back Arian Foster (hamstring) and Ben Tate (ribs) arent serious. Tate was injured in the third quarter on Sunday but returned and finished the game. He told The Associated Press on Monday that he has four broken ribs. He was in a lot of pain, even wincing when he took off his sweatshirt, but said that he expects to be ready to play when Houston hosts Indianapolis on Nov. 3. "Ill be OK," he said. Kubiak also said rookies Cierre Wood, Sam Montgomery and Willie Jefferson were released for violating team rules. He wouldnt specify what the players did, but did say it wasnt just one thing. "I make decisions based on a body of work in everything I do," he said. "Ive got five months of work invested with those three young men and I made a decision today to move forward. Weve got some things we need to address as a football team." Wood is a running back who was third on the depth chart after making the team as an undrafted free agent. With Foster and Tate both banged up, the Texans will need to add depth at that position with one of the open roster spots. Montgomery, a third-round pick, and Jefferson, who was undrafted, are both linebackers. "Weve got some rebuilding to do inside with some issues and weve got some special teams issues," Kubiak said. "So the moves that we make have got to be special teams-oriented to help (special teams coach) Joe (Marciano)." Players wouldnt discuss why the three were dismissed from the team, but said they agreed with Kubiaks decision. "Its a shame," linebacker Brooks Reed said. "But its for the betterment of the team." Another issue for the Texans is the health of quarterback Matt Schaub. Schaub struggled this season before missing last weeks game with ankle and foot injuries. Former third-stringer Case Keenum got the start on Sunday in his first NFL game. He performed well for most of the game before a fumble late in the fourth quarter sealed Houstons loss. Kubiak was cagey when asked if Schaub would start after the bye if hes healthy. "Ive got to sit down and look at our situation and whats going on right now," he said. "Obviously Matts our starting quarterback, Case played this week because Matt wasnt healthy. Case went in and played extremely well. Im going to sit down on our bye week and evaluate where were at as a team and move forward from there." But he did rave about Keenums performance against the undefeated Chiefs. "To go in Kansas City in that environment and that noise and handle the football team the way he handled it I thought was impressive," Kubiak said. Lucas Vazquez Real Madrid Jersey . Crawford hit his slam off Pirates starter Edinson Volquez to give San Francisco a four run lead in the fourth and they never looked back. Brandon Belt had three runs batted in as well. Bumgarner pitched all nine innings and allowed just four hits. Luca Zidane Real Madrid Jersey . At a news conference Tuesday where it was thought that the fiery Schallibaum may be shown the door after a dismal finish to the Major League Soccer season, team president Joey Saputo said no decision has been made on whether the Swiss Volcano will be back in 2014. http://www.realmadridcfstore.com/Women- ... -Jersey/.Y. -- Syracuse guard Trevor Cooney was mired in a shooting slump, and his woes coincided with a late-season swoon by the Orange. Sergio Ramos Real Madrid Jersey . The rest of the team was already on the field stretching before batting practice while Puig was getting dressed in the clubhouse. He had been slated to start in right field for the afternoon game against the San Francisco Giants, who beat the Dodgers 8-4. Cristiano Ronaldo Real Madrid Jersey . -- The Oakland Raiders expect to have starting right tackle Tony Pashos back for Sundays game against the Houston Texans.Durham, NC (SportsNetwork.com) - Jahlil Okafor scored a career-high 27 points with eight rebounds to lead the second-ranked Duke Blue Devils to an 86-69 win over the Toledo Rockets on Monday. Duke (11-0), which has won 39 straight games at home, took the floor for the first time since a 66-56 win over UConn on Dec. 18. Quinn Cook chipped in with 20 points for the Blue Devils, while Tyus Jones tallied 15 points with eight assists and Justise Winslow added nine points. Julius Brown had 19 points to lead the Rockets (7-5), who saw their five-game winning streak halted. Justin Drummond and J.D. Weatherspoon each had 14 in the loss. Final Score: (7) Gonzaga 60, San Diego 48 San Diego, CA (SportsNetwork.com) - Kyle Wiltjer had 15 points and six rebounds in the seventh-ranked Gonzaga Bulldogs 60-48 victory over the San Diego Toreros on Monday night. Byronn Wesley added 12 points, five boards and two blocks for the Bulldogs (13-1, 2-0 WCC), who have won six in a row.dddddddddddd Kevin Pangos tallied 10 points and six rebounds. Johnny Dee ended with 20 points and eight boards for the Toreros (7-7, 0-2), who have dropped two straight since a three-game winning streak. Final Score: (11) Texas 66, Rice 55 Austin, TX (SportsNetwork.com) - Myles Turner scored 16 points while Jonathan Holmes turned in 12 points and 10 rebounds as No. 11 Texas topped Rice by a 66-55 count at Erwin Center. Javan Felix contributed 10 points for the Longhorns (11-2), who recovered from a three-point overtime loss to Stanford last Tuesday. Seth Gearharts game-best 24 points werent nearly enough for the Owls (3-8), who have lost two straight since winning two in a row. Marcus Jackson totaled 10 points in a losing cause. Wholesale Authentic Jerseys Wholesale Authentic Jerseys Stitched NFL Jerseys NFL Jerseys Outlet Cheap NFL Womens Jerseys China NFL Hoodies Wholesale NFL Hoodies ' ' '
zft123
 
Berichten: 1
Geregistreerd: di 03 jul 2018, 11:03


Keer terug naar Nieuws over stotteren

Wie is er online

Gebruikers op dit forum: Geen geregistreerde gebruikers. en 1 gast

cron