Search results for "Droni"

Determination of renal tissue ibandronate levels in rats with normal and mildly impaired renal function

2013

After entering the blood, bisphosphonates are immediately bound to bone or excreted unchanged by the kidney. During renal excretion about 0.5% of administrated dosage remains in kidney tissue. The renal tissue level of bisphosphonates (RTL) decreases over time and remains at about 0.15% after 3weeks, but the influence of renal insufficiency (RI) is unclear.We investigated the influence of mild to moderate RI on RTL of ibandronate (IBD). First a method for determination of RTL was implemented and validated. We measured RTL in rats with normal renal function (SHAM) and after unilateral nephrectomy (UNX). In each case one SHAM and one UNX groups received one or alternatively 9 times every 3wee…

Zoledronate, ibandronate and clodronate enhance osteoblast differentiation in a dose dependent manner – A quantitative in vitro gene expression analy…

2010

Bisphosphonates are widely used in the clinical treatment of bone diseases with increased bone resorption. In terms of side effects, they are known to be associated with osteonecrosis of the jaw (BONJ). There are two groups of bisphosphonates: the nitrogen-containing bisphosphonates, e.g. zoledronate and ibandronate, and the non-nitrogen-containing bisphosphonates, e.g. clodronate. Their impact on bone metabolism seems to differ. The objective of this study was to compare the osteogenic differentiation potency of these two pharmacologic groups. Human osteoblasts were stimulated with zoledronate and ibandronate at concentrations of 5×10(-5) M, 5×10(-6) M and 5×10(-7) M over the experimental …

Bone Turnover Markers and Potential Correlation with Outcomes in Patients with Genitourinary Cancer (Renal and Bladder) and Bone Metastasis (Results …

2012

ABSTRACT Background Levels of bone turnover markers (BTM) might be correlated with outcome in terms of skeletal related events (SRE), disease progression and death. The aim of the study was to determine the possible correlation between BTM, disease progression, SREs and death in patients with genitourinary cancer and bone metastases (BM) treated with zoledronic acid (ZA). Methods Observational, prospective, multicenter study. Patients with genitourinary cancer (prostate, renal, bladder) and BM were included. BTM determined were: carboxiterminal telopeptide of type I collagen (β-CTX) and bone specific alkaline phosphatase (BALP) by ELISA (immunoenzymatic assay, IDS UK), and aminoterminal pro…

Medication-related osteonecrosis of the jaws (MRONJ) in cancer patients treated with denosumab VS. zoledronic acid : a systematic review and meta-ana…

2020

Background The aim of the present study was to analyse the incidence, risk ratio (RR) and prognoses of two types of medication-related osteonecrosis of the jaws (MRONJ): denosumab-related osteonecrosis of the jaws (DRONJ) and Bisphosphonate-Related Osteonecrosis of the Jaws (BRONJ) in cancer patients under treatment with denosumab or zoledronic acid (ZA). Material and Methods An electronic and manual search was conducted for randomized controlled trials (RCTs) until May 2019. Assessment of the identified studies, risk of bias and data extraction were performed independently by two reviewers. The incidence of DRONJ and BRONJ and the RR to develop MRONJ were calculated at 1 year, 2 years and …

Ibandronic acid subsequent to raloxifene: Effect on bone metabolism and on cardiovascular risk factors

2015

s / Maturitas 81 (2015) 144–190 161 Materials andmethods: This randomized double-blind clinical trialwas carried out inAhvaz (Iran) fromAugust toDecember 2010. Forty postmenopausal women with symptoms of vaginal atrophy were randomly allocated to two groups to take vaginal suppositories of either 5mg hyaluronic acid sodium salt (n=20) or 1mg vitamin E (n=20) for 8 weeks. The symptoms of vaginal atrophy were evaluated by a self-assessed 4-point scale and the composite score was determined as none, mild, moderate, and severe in four periods. Results: The results showed that the symptoms were relieved significantly in both groups (P<0.001). The relief of symptomswas significantly superior in t…

Dexrazoxane shows cytoprotective effects in zoledronic acid-treated human cells in vitro and in the rabbit tibia model in vivo

2012

Abstract Introduction Bisphosphonates are important and effective drugs in oncology and osteoporosis therapy. They accumulate in the bone matrix becoming released and active by bone resorption. This leads to effective inhibition of tumor cells and bone degradation. A side effect of bisphosphonates similar to other drugs like denosumab is osteonecrosis of the jaws (ONJ). This problem mostly occurs after tooth extraction. We studied the cytoprotectant dexrazoxane known from anthracycline chemotherapy for cytoprotection in nitrogen-containing bisphosphonate treated cells and in the rabbit tibia model to evaluate a possible value in ONJ management. Materials & methods Human osteoblasts (HOB) P2…

TECNICHE INNOVATIVE DI MONITORAGGIO DEL TRAFFICO PER IL MIGLIORAMENTO DEL SISTEMA DELLA MOBILITÀ DI PERSONE E MERCI

L’attività di ricerca sono state finalizzate all’analisi ed all’individuazione di tecniche innovative di monitoraggio del traffico che, se utilizzate ad integrazione di quelle più tradizionali e affermate sia dal punto di vista scientifico e metodologico, hanno il compito di fornire e mantenere aggiornati i dati sulla consistenza dei flussi di traffico e raccogliere informazioni sui comportamenti di guida dei conducenti, necessari per affrontare e risolvere criticità localizzate lungo la rete stradale. La fase sperimentale della ricerca è stata finalizzata a verificare la possibilità di utilizzare i Sistemi Aeromobili a Pilotaggio Remoto (SAPR), ossia degli aeromobili caratterizzati dall’as…

Neridronate prevents bone loss in patients receiving androgen deprivation therapy for prostate cancer.

2004

Today, androgen deprivation therapy is a cornerstone of treatment for advanced prostate cancer, although it presents important complications such as osteoporosis. Neridronate, a relatively new bisphosphonate, is able to prevent bone loss in patients with prostate cancer during androgen ablation. Introduction: Androgen-deprivation therapy (ADT) is a cornerstone of treatment for advanced prostate cancer. This therapy has iatrogenic complications, such as osteoporosis. The aim of our study was to evaluate the efficacy of neridronate, a relatively new bisphosphonate, to prevent bone loss during androgen ablation. Materials and Methods: Forty-eight osteoporotic patients with prostate cancer, tre…

The strong coupling constant: State of the art and the decade ahead

2022

This document provides a comprehensive summary of the state-of-the-art, challenges, and prospects in the experimental and theoretical study of the strong coupling $\alpha_s$. The current status of the seven methods presently used to determine $\alpha_s$ based on: (i) lattice QCD, (ii) hadronic $\tau$ decays, (iii) deep-inelastic scattering and parton distribution functions fits, (iv) electroweak boson decays, hadronic final-states in (v) e+e-, (vi) e-p, and (vii) p-p collisions, and (viii) quarkonia decays and masses, are reviewed. Novel $\alpha_s$ determinations are discussed, as well as the averaging method used to obtain the PDG world-average value at the reference Z boson mass scale, $\…

Testing the nature of the Λ(1520)-resonance in proton-induced production

2006

The $\Lambda(1520)$ resonance has been recently studied in a unitarized coupled channel formalism with $\pi\Sigma(1385)$, $K\Xi(1530)$, $\bar{K}N$ and $\pi\Sigma$ as constituents blocks. We provide a theoretical study of the predictions of this model in physical observables of the $pp\to pK^+K^-p$ and $pp\to pK^+\pi^0\pi^0\Lambda$ reactions. In particular, we show that the ratio between the $\pi^0\pi^0\Lambda$ and $K^-p$ mass distributions can provide valuable information on the ratio of the couplings of the $\Lambda(1520)$ resonance to $\pi\Sigma(1385)$ and $\bar{K}N$ that the theory predicts. Calculations are done for energies which are accessible in an experimental facility like COSY at …