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Recipient sex and donor leukemic cell characteristics determine leukemogenesis in patient-derived models.
Haematologica
January 2025
University Clinic Tübingen, Department for Internal Medicine II, University of Tübingen, Tübingen, Germany; German Cancer Consortium (DKTK), partner site Tübingen, a partnership between DKFZ and University Hospital Tübingen.
In acute myeloid leukemia (AML), leukemogenesis depends on cell-intrinsic genetic aberrations and thus, studies on AML require investigations in an in vivo setting as provided by patient derived xenografts (PDX) models. Here we report that, next to leukemic cell characteristics, recipient sex highly influences the outgrowth of AML cells in PDX models, with females being much better repopulated than males in primary as well as secondary transplantation assays. Testosterone may be the more important player since, strikingly, better engraftment was seen in castrated versus control male recipients, while ovariectomy did not significantly impair engraftment in females.
View Article and Find Full Text PDFEnhancing Rotator Cuff Repair in Rabbit Osteoporosis With Chitosan Quaternary Ammonium Salt-Coated Nickel-Titanium Memory Alloy Anchors.
Am J Sports Med
January 2025
Department of Orthopaedics, Lanzhou University Second Hospital, Lanzhou, Gansu, P.R. China.
Background: For patients with osteoporosis and rotator cuff tears, there is still no consensus on current treatment methods. The material, structure, and number of anchors have important effects on the repair outcome.
Purpose: To investigate the use of chitosan quaternary ammonium salt-coated nickel-titanium memory alloy (NTMA) anchors to treat rotator cuff injury in shoulders with osteoporosis in a rabbit osteoporosis model.
Stigmasterol mitigates estrogen-deficiency-induced osteoporosis through inhibition of phosphorylated p65 and MAPK signaling pathways.
Front Pharmacol
December 2024
Lingnan Medical Research Center, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China.
Background: Osteoporosis is a pervasive bone metabolic disorder characterized by the progressive degeneration of bone microstructure. Osteoclasts are playing a pivotal role in bone remodeling and resorption. Consequently, modulating osteoclast activity, particularly curbing their overactivation, has become a crucial strategy in clinical treatments.
View Article and Find Full Text PDFCombined Autologous Breast Reconstruction and Gynecologic Procedures: Does Timing Affect Clinical and Patient-Reported Outcomes?
J Surg Oncol
December 2024
Section of Plastic and Reconstructive Surgery, Memorial Sloan Kettering Cancer Center, New York, New York, USA.
Background: Patients with or at risk for breast cancer may opt for risk-reducing gynecologic surgeries, including bilateral salpingo-oophorectomies and/or total abdominal hysterectomy. The timing and safety of combining these procedures with autologous breast reconstruction (ABR) are debated. This study assesses the impact of concurrent ABR and gynecologic surgeries on clinical and patient-reported outcomes.
View Article and Find Full Text PDFPhysiological and clinical parameters under different protocols of total intravenous anesthesia in llama () undergoing unilateral ovariectomy.
Open Vet J
November 2024
Department of Molecular Biotechnology, Central Laboratory Unit, University Nacional Hermilio Valdizán, Huánuco, Perú.
Background: The limited and detailed literature on total intravenous anesthesia (TIVA), as well as the clinical indications for unilateral ovariectomy in llamas, are not well-defined. Therefore, it is necessary to understand the anesthetic events and the surgical intervention in this species.
Aim: The objective of this study was to evaluate the intraoperative physiological and clinical parameters in llamas undergoing unilateral ovariectomy, under three protocols of TIVA.
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