 ↑ survival                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             day 0                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          Heteroglycan (