Abstract: Aspects of the methods include volumetrically imaging testicular tissue by optical coherence tomography to identify a testicular tissue location that is likely to contain sperm; and m-mode scanning using optical coherence tomography the identified testicular location to determine whether sperm are at least likely to be present at the location. Methods may further include harvesting sperm from the location, e.g., for use in in vitro fertilization. Also provided are devices and systems for practicing the methods.

Abstract: Provided herein are compositions, methods and uses of humanin or a humanin analog, for example, in treating a subject with humanin or a humanin analog, in part, to reduce, decrease, or inhibit cardiotoxicity caused or induced by an anti-cancer or anti-tumor therapeutic agent, or to protect or preserve cardiac function in the presence of an anti-tumor or anti-cancer therapeutic agent. In some aspects, humanin or humanin analogs, alone or in combination with another cardioprotective agent such as Dexrazoxane are used in combination with a chemotherapeutic agent to treat a hyperproliferative disease or disorder.

Abstract: Provided herein are compositions, methods and uses of humanin or a humanin analog, for example, in treating a subject with humanin or a humanin analog, in part, to reduce, decrease, or inhibit cardiotoxicity caused or induced by an anti-cancer or anti-tumor therapeutic agent, or to protect or preserve cardiac function in the presence of an anti-tumor or anti-cancer therapeutic agent. In some aspects, humanin or humanin analogs, alone or in combination with another cardioprotecitive agent such as Dexrazoxane are used in combination with a chemotherapeutic agent to treat a hyperproliferative disease or disorder.

Abstract: Described herein are methods of enhancing chemotherapeutic treatment of a hyperproliferative disorder by, in part, administering a composition comprising one or more humanin polypeptides to a subject receiving chemotherapy.

Abstract: Provided herein are compositions, methods and uses of humanin or a humanin analog, for example, in treating a subject with humanin or a humanin analog, in part, to protect white blood cells from suppression or cell death induced by an autoimmune, anti-tumor or anti-cancer therapeutic agent.

Abstract: Described herein are methods of enhancing chemotherapeutic treatment of a hyperproliferative disorder by, in part, administering a composition comprising one or more humanin polypeptides to a subject receiving chemotherapy.

Abstract: Described herein are methods of protecting germ cells in a subject from cell death induced by a chemotherapeutic agent by, in part, administering a composition comprising one or more humanin polypeptides to the subject. Also described herein are methods of inhibiting a reduction or decrease in fertility in a subject wherein the reduction or decrease in fertility is due to a chemotherapeutic agent.

Abstract: This invention pertains to the discovery that stem cells (e.g., bone marrow stem cells) transplanted directly into a testicular environment are transdifferentiated into bona fide Sertoli cells, and/or Leydig cells, and/or and germ cells. This provides a mechanism for the treatment of male infertility and/or testosterone deficiency. Thus, in one embodiment, this invention provides a method of treating infertility or testosterone deficiency in a male mammal. The method typically involves implanting stem cells into the testes of the mammal whereby the stem cells differentiate into germ cells and/or Sertoli cells and/or Leydig cells thereby reducing infertility and/or testosterone deficiency.

Abstract: This invention pertains to the discovery that stem cells (e.g., bone marrow stem cells) transplanted directly into a testicular environment are transdifferentiated into bona fide Sertoli cells, and/or Leydig cells, and/or and germ cells. This provides a mechanism for the treatment of male infertility and/or testosterone deficiency. Thus, in one embodiment, this invention provides a method of treating infertility or testosterone deficiency in a male mammal. The method typically involves implanting stem cells into the testes of the mammal whereby the stem cells differentiate into germ cells and/or Sertoli cells and/or Leydig cells thereby reducing infertility and/or testosterone deficiency.

Abstract: This invention pertains to the discovery that stem cells (e.g., bone marrow stem cells) transplanted directly into a testicular environment are transdifferentiated into bona fide Sertoli cells, and/or Leydig cells, and/or and germ cells. This provides a mechanism for the treatment of male infertility and/or testosterone deficiency. Thus, in one embodiment, this invention provides a method of treating infertility or testosterone deficiency in a male mammal. The method typically involves implanting stem cells into the testes of the mammal whereby the stem cells differentiate into germ cells and/or Sertoli cells and/or Leydig cells thereby reducing infertility and/or testosterone deficiency.