Pharmacological prevention of bone loss and fractures following solid organ transplantations: Protocol for a

Jiawen Deng1,2,3, Myron Moskalyk4, Wenteng Hou1,5

  • 1Faculty of Health Sciences, McMaster University, Hamilton, ON, Canada.

Plos One
|April 26, 2024
PubMed
Abstract

Insights

Solid organ transplant recipients face bone loss and fractures due to medical conditions and treatments. This network meta-analysis ranks anti-osteoporotic therapies to guide effective management for bone mineral density and fracture reduction.

Area of Science:

  • Transplantation Medicine
  • Bone Metabolism
  • Pharmacology

Background:

  • Solid organ transplant (SOT) recipients are susceptible to bone loss, decreased bone mineral density (BMD), and increased fracture risk.
  • Underlying conditions and immunosuppressive medications contribute significantly to skeletal fragility in SOT patients.

Purpose of the Study:

  • To conduct a comprehensive network meta-analysis (NMA) of randomized controlled trials (RCTs).
  • To rank anti-osteoporotic interventions based on their efficacy in reducing fractures and increasing BMD in SOT recipients.

Main Methods:

  • Systematic search of multiple databases (MEDLINE, EMBASE, Web of Science, CINAHL, CENTRAL, CNKI) for relevant RCTs.
  • Duplicate screening and data extraction, analyzing BMD changes (mean differences) and fracture incidences (risk ratios).
  • Utilizing Surface Under the Cumulative RAnking (SUCRA) scores for intervention ranking and RoB2/CINeMA for quality assessment.

Main Results:

  • The NMA will provide a quantitative synthesis of all available RCT data.
  • Interventions will be ranked by their effectiveness in improving BMD and reducing fracture risk.
  • The study will offer a robust comparison of various anti-osteoporotic pharmacotherapies.

Conclusions:

  • This systematic review and NMA represents the most extensive quantitative analysis on managing bone loss in SOT recipients.
  • Findings will inform clinical recommendations for pharmacotherapy to mitigate bone loss and fractures post-transplant.
  • Results will be disseminated through a peer-reviewed publication to aid clinicians and patients.

Related Concept Videos

Tissue Transplantation01:24

Tissue Transplantation

Tissue transplantation is a significant medical procedure involving the transfer of cells, tissues, or organs from a donor to a recipient, with the primary aim of restoring lost functions. This procedure is crucial in treating a broad spectrum of diseases, including kidney diseases, liver failure, heart disease, and certain types of cancers.
The Biology of Tissue Transplantation
The biology of tissue transplantation hinges on the Major Histocompatibility Complex (MHC) molecules. These molecules...
360
Bone Marrow Sampling and Transplants01:22

Bone Marrow Sampling and Transplants

Bone marrow transplant is a potential cure for several diseases, including cancer and specific genetic disorders. Notably, this procedure is applicable for patients suffering from aplastic anemia, certain types of leukemia, severe combined immunodeficiency disease (SCID), Hodgkin's disease, non-Hodgkin's lymphoma, multiple myeloma, thalassemia, sickle-cell disease, and certain cancers.
The transplant begins with high doses of chemotherapy and radiation treatment, which aim to destroy...
326
Bone Remodeling01:40

Bone Remodeling

Bone remodeling is a continuous and balanced process of bone resorption by osteoclasts and bone formation by osteoblasts. In adults, it helps maintain bone mass and calcium homeostasis. While mechanical stress can stimulate turnover as part of the normal maintenance and reparative process, several hormones also regulate bone remodeling.
38.3K
Bone Disorders01:29

Bone Disorders

Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
3.5K
Osteoclasts in Bone Remodeling01:31

Osteoclasts in Bone Remodeling

Osteoclasts are cells responsible for bone resorption and remodeling. They originate from hematopoietic progenitor cells present in the bone marrow. Numerous progenitor cells fuse to form multinucleated cells, each with 10-20 nuclei. A single osteoclast has a diameter of 150 to 200 µM. These cells have ruffled borders that break down the underlying bone tissue and release minerals such as calcium into the blood in bone resorption. Osteoclasts cling to bones with their ruffled edges during...
2.9K
Role of Vitamins in Maintaining Bone Health01:25

Role of Vitamins in Maintaining Bone Health

The growth and maintenance of bone are regulated by a combination of nutritional factors, including vitamins, such as vitamin A, B12, C, D, and K.
Vitamin A
Vitamin A is involved in the process of bone remodeling. Retinoic acid, the active metabolite of Vitamin A, has nuclear receptors in osteoblasts and osteoclasts, which are involved in bone remodeling.
Vitamin B12
Vitamin B12 acts as a cofactor during the formation of osteoblast-related proteins, such as osteocalcin. Vitamin B12 plays a role...
3.3K