BUZZ-N Brown: Among top UK mid cap gainers as Q1 sales beat
** Plus-size retailer N Brown (LSE: BWNG.L - news) up c.4 pct, one of the top percentage gainers on the FTSE-250 mid-cap index
** Q1 sales growth of 2.5 pct vs analysts cons of 2.1 pct
** Active customers up 4 pct compared to 2 pct rise in Q4
** Online sales represent more than half of N Brown's home shopping sales
** "There are still moving parts here, but we see increasing traction in key areas of the strategy - encouraging green shoots for the future," Jefferies analysts say
** Up to Thursday's close, the stock had fallen about 8 pct this year (RM (LSE: RM.L - news) : aastha.agnihotri.thomsonreuters.com@reuters.net)