BRIEF-Mexico Urges Two Sides In Venezuela To Hold Talks, Avoid Escalating Violence

* MEXICAN FOREIGN MINISTER MARCELO EBRARD URGES TWO SIDES IN VENEZUELA POLITICAL CRISIS TO HOLD TALKS, AVOID ESCALATING VIOLENCE

* VENEZUELA OPPOSITION WILL SEEK TO MAINTAIN PRESSURE ON ISOLATED PRESIDENT NICOLAS MADURO AFTER CONGRESS CHIEF JUAN GUAIDO SWORE HIMSELF IN AS INTERIM HEAD OF STATE WITH THE SUPPORT OF NATIONS AROUND THE REGION * MOST LATIN AMERICAN NATIONS RECOGNIZED OPPOSITION LEADER GUAIDO AS INTERIM PRESIDENT, LEAVING MADURO FACING UNREST AT HOME AND THREATS FROM THE UNITED STATES (Reporting by Anthony Esposito)