Word: zona
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REPORTER-RESEARCHERS: Audrey Ball, David Bjerklie, Val Castronovo, Nancy Newman, Zona Sparks, Susanne Washburn (Senior Staff); Kathleen Brady, Barbara Burke, Wendy Cole, Kathryn Jackson Fallon, Mary McC. Fernandez, Janice M. Horowitz, Jeanette Isaac, Sinting Lai, Michael Quinn, Megan Rutherford, David Seideman, Linda Young...
REPORTER-RESEARCHERS: Audrey Ball, David Bjerklie, Val Castronovo, Nancy Newman, Zona Sparks, Susanne Washburn (Senior Staff); Kathleen Brady, Barbara Burke, Wendy Cole, Kathryn Jackson Fallon, Mary McC. Fernandez, Janice M. Horowitz, Jeanette Isaac, Sinting Lai, Michael Quinn, Megan Rutherford, David Seideman, Linda Young...
REPORTER-RESEARCHERS: Audrey Ball, David Bjerklie, Val Castronovo, Nancy Newman, Zona Sparks, Susanne Washburn (Senior Staff); Kathleen Brady, Barbara Burke, Wendy Cole, Kathryn Jackson Fallon, Mary McC. Fernandez, Janice M. Horowitz, Jeanette Isaac, Sinting Lai, Michael Quinn, Megan Rutherford, David Seideman, Linda Young...
...latest clue in the mystery of implantation was hit upon by scientists working on a completely different problem: lazy sperm. Some sperm lack the ability to penetrate the egg's outer membrane, or zona pellucida, often as a result of old testicular injuries or early exposure to toxic chemicals. Several methods have been devised to give these sperm a boost, including microinjection (the sperm is inserted directly into the egg by means of a microscopic needle) and partial zona drilling (a tiny hole is made in the egg's protective shell...
REPORTER-RESEARCHERS: Audrey Ball, David Bjerklie, Val Castronovo, Nancy Newman, Zona Sparks, Susanne Washburn (Senior Staff); Kathleen Brady, Barbara Burke, Wendy Cole, Kathryn Jackson Fallon, Mary McC. Fernandez, Janice M. Horowitz, Jeanette Isaac, Sinting Lai, Michael Quinn, Megan Rutherford, David Seideman, Linda Young...