Abstract: Provided is a method for treating a symptom of vibrio infection by using an RTX toxin production inhibitor comprising N-(4-oxo-4H-thieno[3,4-c]chromen-3-yl)-3-phenylprop-2-ynamide having derivatives thereof which can repress (prevent or treat) a symptom of vibrio infection by inhibiting RTX toxin production, other than directly killing vibrio bacteria, to not allow vibrio bacteria to have pathogenicity, and thereby can be an alternative to antibiotics that aim to kill bacteria themselves and thus fundamentally retain the problem of resistance incurrence.

Abstract: Provided is a method for treating a symptom of vibrio infection by using an RTX toxin production inhibitor comprising N-(4-oxo-4H-thieno[3,4-c]chromen-3-yl)-3-phenylprop-2-ynamide having derivatives thereof which can repress (prevent or treat) a symptom of vibrio infection by inhibiting RTX toxin production, other than directly killing vibrio bacteria, to not allow vibrio bacteria to have pathogenicity, and thereby can be an alternative to antibiotics that aim to kill bacteria themselves and thus fundamentally retain the problem of resistance incurrence.

Abstract: The present invention relates to a cell culture dish for the erabryoid body formation from embryonic stem cells, which facilitates efficient and stable differentiation of embryonic stem cells by forming embryoid body in grooves on the bottom of a support adhered on the back of the lid for the culture dish by hanging drop culture.