Romosozumab’s Future Is Uncertain Romosozumab, which has the possible U.S. brand name Evenity, is awaiting approval from the FDA.1 The treatment is an investigational, injectable biologic for treating osteoporosis. It increases bone formation and bone density, reducing a patient’s risk of fractures. The manufacturer no longer expects the FDA to approve the drug this year…
Histamine 4 Receptor Promotes Osteoclastogenesis in RA
In a recent study, researchers examined the osteoclastogenic role of the histamine 4 receptor (H4R), measuring the peripheral blood and synovial fluid monocytes in patients with RA. Results showed that multiple cytokines stimulated H4R expression, suggesting the blockage of H4R may be a useful drug target to decrease the joint damage associated with RA…
MicroRNAs Provide Insight into Bone Metabolism
A recent study examined the functional variants within microRNAs that affect bone metabolism and possibly bone disorders. Researchers found overexpression of microRNAs may contribute to the osteoporotic phenotype, and the gene targets associated with two specific osteoblast-expressed microRNAs may be critical in osteoporosis…
Alterations in the Microbiome Are Associated with Changes in Bone Quality
By treating mice with antibiotics, researchers found that alterations in the gut microbiome impaired the mechanical properties of bone and depleted splenic B and T cell populations. The researchers suspect the decrease in bone strength resulted from the change in the immune system…
On the Road in Rajasthan: Vehicular-Caused Bone, Joint Damage in India
In the good old days, physicians routinely made house calls. The decision to visit the literal bedside of a patient was practical: hospital services were primitive and often offered too little benefit to justify an emergency journey by the patient. These physicians carried leather bags, sometimes called Gladstones, that were filled with instruments for eventualities…
Low Levels of Vitamin D3 May Increase OA Pain
In a study of patients with knee osteoarthritis (OA), researchers found that the cytokine IL-17A may play a role in the pain associated with the disease. Specifically, decreased serum levels of vitamin D3 may contribute to OA pain via the regulation of immune responses…
SSRIs Act Centrally to Cause Bone Loss
In a recent study, investigators examined the effects of both the short- and long-term use of selective serotonin-reuptake inhibitors (SSRIs) on the development and loss of bone. The study results describe the mechanisms by which SSRIs, specifically fluoxetine, affect osteoclasts short term to increase bone mass, but also how the treatment may cause bone loss at six weeks in mice…
FDA Approves Updated Labeling on Risk of Osteonecrosis of the Jaw for Denosumab
Denosumab’s labeling now says a patient’s risk of developing osteonecrosis of the jaw may increase with prolonged exposure…
The Gut Microbiome Influences Postmenopausal Bone Loss
Bone health has been successfully improved by using probiotics to influence the gut microbiome in postmenopausal women with osteoporosis. New research has gained insight into this process, uncovering that sex steroid depletion increases gut permeability resulting in inflammation and pathology in mice. Treatment with probiotics also prevents this increase in gut permeability and bone loss associated with sex steroid depletion…
Extra Bone Resorption in Pregnancy, Lactation May Pass Maternal Lead Burden to Baby
NEW YORK (Reuters Health)—Bone resorption increases during pregnancy and continues to be high postpartum, according to new findings using lead testing to measure bone turnover. Researchers also found unexpected evidence that maternal lead burden is transferred to the fetus. “These data confirm calcium balance studies that indicate increased bone resorption throughout pregnancy and lactation,” Dr….