Evidence of venom variability associated with venom extraction interval in the monocled cobra (Naja kaouthia)

Posted by
  Evidence of venom variability associated with venom extraction interval in the monocled cobra (Naja kaouthia) Abstract Snake venom variability is a critical factor in antivenom production. Although several influencing factors have been studied, the impact of extraction interval on venom properties remains poorly understood. This study evaluated the effects of various extraction intervals on venom yield, the percentage of dry weight (%Dw), and composition in the monocled cobra ( Naja kaouthia ). Twenty-five captive snakes were randomly allocated to five groups, each undergoing a control extraction followed by a repeated extraction at 1, 4, 7, 10, or 14 days. Venom profiles were characterized using reversed-phase high-performance liquid chromatography (RP-HPLC) and Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS). Results indicated that while fresh venom yield remained stable across all intervals, %Dw significantly decreased in extractions performed between 1 and 10 days, ...

Obituary: Rich Ayrey

Posted by

 


Obituary: Rich Ayrey

Below is additional information as posted on Jan Ove Reins' "The Scorpion Files Newsblog"

"Yesterday I got the sad news from multiple postings on Facebook that Rich Ayrey is no longer among us. Most, if not all of us in the scorpion community knew Rich. Either by personal communication or from his many important contributions in the taxonomy of the family Vaejovidae from Arizona and California.

Around 2011 I had the first contact with Rich when he generously shared some pictures of rare Vaejovis species for me to use in The Scorpion Files. Later he was very helpful by sending me new articles that he had published. And he always added some nice and supportive comments in his emails which I appreciated very much.

Rich will be missed by the scorpion comunity. 

My thoughts are with Rich's family and friends.

RIP

Jan Ove Rein
Editor of The Scorpion Files"