Viruses Could Trigger Early Gray Hair

| May 10, 2018 

 ========= Old Image Removed =========Array
(
    [_wp_attached_file] => Array
        (
            [0] => 2018/05/croppedjournal.pbio_.2003648.g001.png
        )

    [_wp_attachment_metadata] => Array
        (
            [0] => a:5:{s:5:"width";i:1746;s:6:"height";i:881;s:4:"file";s:45:"2018/05/croppedjournal.pbio_.2003648.g001.png";s:5:"sizes";a:13:{s:6:"medium";a:4:{s:4:"file";s:45:"croppedjournal.pbio_.2003648.g001-336x170.png";s:5:"width";i:336;s:6:"height";i:170;s:9:"mime-type";s:9:"image/png";}s:5:"large";a:4:{s:4:"file";s:45:"croppedjournal.pbio_.2003648.g001-771x389.png";s:5:"width";i:771;s:6:"height";i:389;s:9:"mime-type";s:9:"image/png";}s:9:"thumbnail";a:4:{s:4:"file";s:45:"croppedjournal.pbio_.2003648.g001-140x140.png";s:5:"width";i:140;s:6:"height";i:140;s:9:"mime-type";s:9:"image/png";}s:12:"medium_large";a:4:{s:4:"file";s:45:"croppedjournal.pbio_.2003648.g001-768x388.png";s:5:"width";i:768;s:6:"height";i:388;s:9:"mime-type";s:9:"image/png";}s:9:"1536x1536";a:4:{s:4:"file";s:46:"croppedjournal.pbio_.2003648.g001-1536x775.png";s:5:"width";i:1536;s:6:"height";i:775;s:9:"mime-type";s:9:"image/png";}s:9:"wbhm-icon";a:4:{s:4:"file";s:43:"croppedjournal.pbio_.2003648.g001-80x80.png";s:5:"width";i:80;s:6:"height";i:80;s:9:"mime-type";s:9:"image/png";}s:13:"wbhm-featured";a:4:{s:4:"file";s:45:"croppedjournal.pbio_.2003648.g001-600x338.png";s:5:"width";i:600;s:6:"height";i:338;s:9:"mime-type";s:9:"image/png";}s:20:"wbhm-featured-square";a:4:{s:4:"file";s:45:"croppedjournal.pbio_.2003648.g001-600x600.png";s:5:"width";i:600;s:6:"height";i:600;s:9:"mime-type";s:9:"image/png";}s:18:"wbhm-featured-home";a:4:{s:4:"file";s:45:"croppedjournal.pbio_.2003648.g001-616x311.png";s:5:"width";i:616;s:6:"height";i:311;s:9:"mime-type";s:9:"image/png";}s:22:"wbhm-featured-carousel";a:4:{s:4:"file";s:45:"croppedjournal.pbio_.2003648.g001-470x237.png";s:5:"width";i:470;s:6:"height";i:237;s:9:"mime-type";s:9:"image/png";}s:28:"ab-block-post-grid-landscape";a:4:{s:4:"file";s:45:"croppedjournal.pbio_.2003648.g001-600x400.png";s:5:"width";i:600;s:6:"height";i:400;s:9:"mime-type";s:9:"image/png";}s:25:"ab-block-post-grid-square";a:4:{s:4:"file";s:45:"croppedjournal.pbio_.2003648.g001-600x600.png";s:5:"width";i:600;s:6:"height";i:600;s:9:"mime-type";s:9:"image/png";}s:14:"post-thumbnail";a:4:{s:4:"file";s:45:"croppedjournal.pbio_.2003648.g001-125x125.png";s:5:"width";i:125;s:6:"height";i:125;s:9:"mime-type";s:9:"image/png";}}s:10:"image_meta";a:12:{s:8:"aperture";s:1:"0";s:6:"credit";s:0:"";s:6:"camera";s:0:"";s:7:"caption";s:0:"";s:17:"created_timestamp";s:1:"0";s:9:"copyright";s:0:"";s:12:"focal_length";s:1:"0";s:3:"iso";s:1:"0";s:13:"shutter_speed";s:1:"0";s:5:"title";s:0:"";s:11:"orientation";s:1:"0";s:8:"keywords";a:0:{}}}
        )

    [_media_credit] => Array
        (
            [0] => Melissa Harris et al
        )

    [_navis_media_credit_org] => Array
        (
            [0] => PLOS Biology
        )

    [_navis_media_can_distribute] => Array
        (
            [0] => 
        )

)
1670484948 
1525933910

A new UAB study looking at stem cells in mice might have nudged scientists toward a better understanding of one of the often-dreaded realities of aging: gray hair.

The study published last week suggests certain types of infections can start or speed up the hair-graying process in mice. UAB biologists found that triggering some of the animals’ immune systems resulted in a loss or malfunctioning of special stem cells that make melanocytes, which make hair pigment. That loss led to more and earlier graying.

Learning more about how the immune system interacts with melanocyte stem cells could also mean more insight into diseases like melanoma and vitiligo.

It’s unknown whether the findings extend to humans, but the authors think the study could explain why some people go gray early. They also say it might help explain anecdotal stories of hair turning gray after viral infections.

 

Tributes, not politics, play center stage as Trump hosts the Kennedy Center Honors

President Trump said he was closely involved with picking the honorees, and on Sunday he became the first president to host the Kennedy Center awards ceremony.

Thailand launches airstrikes along border with Cambodia as tensions reignite

Both sides accused the other of breaking a ceasefire that halted fighting earlier this year. Longstanding border disputes erupted into five days of combat in July that killed dozens.

Rafael Ithier, a legend of salsa music, dies at 99

The pianist, composer and arranger spent more than six decades turning El Gran Combo into one of the premier salsa institutions of Latin America and beyond.

Light from satellites will ruin majority of some space telescope images, study says

Astronomers have long been concerned about reflections from satellites showing up in images taken by telescopes and other scientific instruments.

Defense Department is reviewing boat strike video for possible release, Hegseth says

In a speech on Saturday, Defense Secretary Pete Hegseth defended the strikes, saying: "President Trump can and will take decisive military action as he sees fit to defend our nation's interests."

Bama, Miami in, Notre Dame out and Indiana No. 1 in College Football Playoff rankings

Nobody paying attention for the past 24 months would be surprised to see Indiana – yes, Indiana – leading the way into this year's College Football Playoff.

More Front Page Coverage