Described herein are methods of the treatment and diagnosis of bone mineral density related disorders. More particularly, described herein are methods of diagnosing or predicting a bone mineral density related disease, or a risk of a bone mineral density related disease, in a subject, which method comprises detecting a mutation in the TBXAS1 gene, wherein the presence of such a mutation is indicative of a bone mineral density related disease or of a risk of a bone mineral density related disease. Also described are compounds such as a thromboxane synthase (TXAS) encoding polynucleotide, a TXAS, thromboxane A2 or an analog thereof for treating or preventing a disease associated with an increased bone mineral density (e.g., Ghosal hematodiaphyseal dysplasia syndrome). Additional aspects describe an inhibitor of TBXAS1 gene expression or a thromboxane inhibitor for treating or preventing a disease associated with a decreased bone mineral density (e.g., osteoporosis).

The present invention provides engineered platelets with chimeric platelet receptors (CPR) with a desired target specificity. Additionally, the engineered platelets may comprise cargo which may be released upon activation of the platelet. Additionally, the platelets may be generated in vitro from megakaryocytes engineered to generate non-thrombogenic platelets.

The present invention provides engineered platelets with chimeric platelet receptors (CPR) with a desired target specificity. Additionally, the engineered platelets may comprise cargo which may be released upon activation of the platelet. Additionally, the platelets may be generated in vitro from megakaryocytes engineered to generate non-thrombogenic platelets.

The present invention provides engineered platelets with chimeric platelet receptors (CPR) with a desired target specificity. Additionally, the engineered platelets may comprise cargo which may be released upon activation of the platelet. Additionally, the platelets may be generated in vitro from megakaryocytes engineered to generate non-thrombogenic platelets.

The present invention provides engineered platelets with chimeric platelet receptors (CPR) with a desired target specificity. Additionally, the engineered platelets may comprise cargo which may be released upon activation of the platelet. Additionally, the platelets may be generated in vitro from megakaryocytes engineered to generate non-thrombogemc platelets.

The present invention provides engineered platelets with chimeric platelet receptors (CPR) with a desired target specificity. Additionally, the engineered platelets may comprise cargo which may be released upon activation of the platelet. Additionally, the platelets may be generated in vitro from megakaryocytes engineered to generate non-thrombogemc platelets.