Page 1142 - Veterinary Toxicology, Basic and Clinical Principles, 3rd Edition
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1074 SECTION | XVI Feed and Water Contaminants




  VetBooks.ir               HO      O   H     Et  O   HO  OH       HO   CO H   H       H    H     H       OH
                                                                          2
                                                      O
                          O     O          O  H      H                           H   OH  O  H  O    O
                               H                    H
                     HO 2 C
                                  Monensin A                                       Lasalocid
                                   C H O 11                                        C H O 8
                                                                                    34 54
                                    36 62
                                   MW 670.87                                      MW 590.79
                                                          OH                                              OH
                                                    H                                              H
                                OH                                             OH
                                    O        O                                     O         O
                HOOC                                   O        HOOC                                  O
                          O              O        O                       O              O       O
                        H   H           H                              H   H           H
                                                 OH                                              OH
                                  Salinomycin                                      Narasin
                                   C H O 11                                       C H O  11
                                    42 70
                                                                                    43 72
                                   MW 751.00                                      MW 765.03
                                                      HO                                             HO  OH
                            HO                                             HO
                HO 2 C  OH          O   H        O    O                            O   H        O    O
                                                                       O
                          O     O          O  H      H                   O      O         O  H       H
                                H              O    H                  C       H                   H
                            H                   H                   HO 2
                   MeO     OMe               O
                                                                                  Laidlomycin
                                                   OMe                            C H O  12
                                                                                    37 62
                                               OMe                                MW 698.88
                                  Maduramicin
                                     H O
                                   C 47 80  17
                                   MW 917.13
                                                                              HO
                                                    HO
                                                            O   H             O
                                           C    OH                       O
                                        HO 2
                                                  O      O         O  H       H
                                                        H              O    H
                                                    H                    H
                                            HO     OMe               O

                                                                       OMe
                                                         Semduramycin
                                                             H O
                                                           C 45 76  16
                                                           MW 873.08
             FIGURE 78.1 Structures of carboxylic ionophores.


             coccidiosis in cranes (Carpenter and Novilla, 1992),  potentiation of anticancer therapies (Griffin et al., 1993;
             diarrheal disease in swine (Kyriakis et al., 1993), grega-  Shaik et al., 2001) have been conducted. Salinomycin
             rine infections in shrimp (Jones et al., 1994; Fajer-Avila  has been shown to selectively kill breast cancer stem
             et al., 2005), and microsporidial gill disease in fish  cells and apoptotic resistant cancer cells and is consid-
             (Becker et al., 2002). Experimental studies on the use of  ered to be a potential anticancer drug for the prevention
             ionophores for the treatment of malaria (Adovelande and  and treatment of cancer (Huczynski, 2012). These stud-
             Schrevel, 1996; Gumila et al., 1997), mycobacteriosis  ies were conducted in cell culture or as challenge studies
             (Brumbaugh et al., 2004; Greenstein et al., 2009), lead  in laboratory animals and have shown some degree of
             poisoning (Hamidinia et al., 2002) and as an aid in the  efficacy. In spite of these encouraging results, there have
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