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The French outfit snapped a five-game losing streak in the EuroLeague Women in the process.
The Polish club was putting the pressure on Tarbes and only trailed 69-67 after a basket by Paulina Pawlak with 5:59 remaining.
Houston buried a jump shot and France international Yacoubou-Dehoui then scored six points in a row for a 10-point lead.
With Lotos going ice cold and failing to score again, Houston and Frida Eldebrink had the final two baskets for Tarbes.
The result has left both sides with 2-5 records in Group D.
Ivana Matovic and Alana Beard each had 19 points in defeat.