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PTHrP and Osteoporosis

2014-08-27 03:56:41 | BioPortfolio

Summary

PTH-related protein, or ''PTHrP'', is a hormone which was discovered in 1987. As its name implies, it is closely related to another hormone discovered in the 1920's named parathyroid hormone or ''PTH''. PTH has been shown to be effective in treating osteoporosis in both animals and humans. PTHrP has been shown to be effective in treating osteoporosis in laboratory animals, and there are strong scientific reasons to think that it may be effective in humans as well. However, no human trials with PTHrP in the treatment of osteoporosis have been performed. The studies in this trial are focussed on determining whether PTHrP can indeed increase bone mass in postmenopausal women with osteoporosis, when administered daily by subcutaneous injection for three months.

Study Design

Allocation: Randomized, Control: Placebo Control, Masking: Double-Blind, Primary Purpose: Treatment

Conditions

Osteoporosis

Intervention

Parathyroid hormone-related protein or ''PTHrP''

Location

University of Pittsburgh School of Medicine
Pittsburgh
Pennsylvania
United States
15213

Status

Completed

Source

National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:56:41-0400

Clinical Trials [1814 Associated Clinical Trials listed on BioPortfolio]

Comparison Study of PTHrP and PTH to Treat Osteoporosis

This is a three month comparison trial of standard dose parathyroid Hormone (PTH (1-34) and two different doses of Parathyroid Hormone-related Protein (PTHrP). The investigators want to t...

"PTHrP(1-36) IV Dose Escalation Study"

This is a single-blinded, one-treatment, combination dose escalation and pharmacokinetic study done in healthy volunteers. The investigators want to determine whether PTHrP(1-36) shares a...

Bone Metabolism and Parathyroid Hormone-Related Protein (PTHrP) Lactation Study

The primary aim of the study is to measure bone formation in both lactating and non-lactating post-partum women and compare these to those in healthy non-pregnant controls. The secondary ...

Effects of Parathyroid Hormone in Men With Osteoporosis

Alendronate is a drug that blocks or reduces bone loss, while parathyroid hormone (PTH) stimulates the formation of new bone. The purpose of this study is to compare the bone-building effe...

Alendronate and/or Parathyroid Hormone for Osteoporosis

This study looks at the effects of two medications, alendronate and parathyroid hormone, on bone mass and on bone formation and bone breakdown in women with osteoporosis. We will randomly ...

PubMed Articles [20883 Associated PubMed Articles listed on BioPortfolio]

Case report: Penile squamous cell carcinoma associated with severe hypercalcemia and high levels of Parathyroid Hormone related Peptide (PTHrP) expressed in metastatic skin tissue.

It is known that high levels of parathyroid hormone-related protein (PTHrP) correlate with a bad prognostic in malignancies. Here we present a patient with advanced penile cancer (PC) without antecede...

Anabolic agents: what is beyond osteoporosis?

Osteoporosis is a common skeletal disorder characterized by low bone mass, which leads to reduced bone strength and an increased risk of fractures. Anabolic agents have been shown to improve bone mass...

Serotonin induces parathyroid hormone-related protein in goat mammary gland.

During lactation, large amounts of calcium are exported from the mammary gland into milk to ensure skeletal growth of the offspring. Recent studies revealed that serotonin (5-HT) is essential to stimu...

Enhancement of Bone Augmentation in Osteoporotic Conditions by the Intermittent Parathyroid Hormone: An Animal Study in the Calvarium of Ovariectomized Rat.

Intermittent parathyroid hormone (PTH) is the commonly used therapeutic approach for patients with severe osteoporosis. The goal of this study was to elucidate the effect of the intermittent PTH treat...

Osteoanabolic and Dual Action Drugs.

Teriparatide (TPTD) and Abaloparatide (ABL) are the only osteoanabolic drugs available, at this time, for treatment of osteoporosis. TPTD is a 34-amino acid fragment that is identical in its primary s...

Medical and Biotech [MESH] Definitions

A parathyroid hormone receptor subtype that recognizes both PARATHYROID HORMONE and PARATHYROID HORMONE-RELATED PROTEIN. It is a G-protein-coupled receptor that is expressed at high levels in BONE and in KIDNEY.

A ubiquitously expressed, secreted protein with bone resorption and renal calcium reabsorption activities that are similar to PARATHYROID HORMONE. It does not circulate in appreciable amounts in normal subjects, but rather exerts its biological actions locally. Overexpression of parathyroid hormone-related protein by tumor cells results in humoral calcemia of malignancy.

Cell surface proteins that bind PARATHYROID HORMONE with high affinity and trigger intracellular changes which influence the behavior of cells. Parathyroid hormone receptors on BONE; KIDNEY; and gastrointestinal cells mediate the hormone's role in calcium and phosphate homeostasis.

A parathyroid hormone receptor subtype found in the BRAIN and the PANCREAS. It is a G-protein-coupled receptor with a ligand specificity that varies between homologs from different species.

Reduction of bone mass without alteration in the composition of bone, leading to fractures. Primary osteoporosis can be of two major types: postmenopausal osteoporosis (OSTEOPOROSIS, POSTMENOPAUSAL) and age-related or senile osteoporosis.

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