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https://www.readbyqxmd.com/read/28808351/inhibition-of-the-mevalonate-pathway-augments-the-activity-of-pitavastatin-against-ovarian-cancer-cells
#1
Marwan Ibrahim Abdullah, Mohammed Najim Abed, Alan Richardson
Only 40% of patients with advanced ovarian cancer survive more than 5 years. We have previously shown that pitavastatin induces regression of ovarian cancer xenografts in mice. To evaluate whether the response of ovarian cancer cells to pitavastatin is potentiated by farnesyl diphosphate synthase inhibitors or geranylgeraniol transferase I inhibitors, we evaluated combinations of pitavastatin with zoledronic acid, risedronate and GGTI-2133 in a panel of ovarian cancer cells. Pitavastatin (IC50 = 0.6-14 μM), zoledronic acid (IC50 = 21-57 μM), risedronate (IC50 > 100 μM) or GGTI-2133 (IC50 > 25 μM) inhibited the growth of ovarian cancer cell cultures...
August 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28721134/osteoporosis-in-men
#2
REVIEW
Waldemar Misiorowski
Osteoporotic fractures are the leading cause of morbidity and mortality among aging men. 30% of all hip fractures occur in men, and mortality resulting from not only the hip fracture, but also the spine and other major osteoporotic fractures, is significantly higher in men than in women. As in women, hypogonadism is the best documented risk factor for developing osteoporosis in men. In older men, testosterone levels are negatively correlated with the risk of fractures, and it seems that this age-related testosterone deficiency should not be considered as one of the many causes of secondary osteoporosis, rather one of the major and most important mechanisms of senile osteoporosis...
June 2017: Przeglad Menopauzalny, Menopause Review
https://www.readbyqxmd.com/read/28713001/comparison-of-the-properties-of-implantable-matrices-prepared-from-degradable-and-non-degradable-polymers-for-bisphosphonate-delivery
#3
Tamás Sovány, Anna Csüllög, Ernő Benkő, Géza Regdon, Klára Pintye-Hódi
The aim of the present study was the development of directly compressed tablets for implantable delivery of risedronate sodium for osteoporosis treatment and the comparison of the mechanism and kinetics of drug release from biogradable (chitosan) and non-degradable (PVC) polymer matrices. The compositions and process parameters were optimized in accordance to a mixed 2 and 3 level full factorial design. Critical Quality Attributes (CQA), such as diametral breaking hardness, porosity and speed of drug dissolution were investigated...
July 13, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28598810/the-prevention-of-fragility-fractures-in-patients-with-non-metastatic-prostate-cancer-a-position-statement-by-the-international-osteoporosis-foundation
#4
REVIEW
Luisella Cianferotti, Francesco Bertoldo, Marco Carini, John A Kanis, Alberto Lapini, Nicola Longo, Giuseppe Martorana, Vincenzo Mirone, Jean-Yves Reginster, Rene Rizzoli, Maria Luisa Brandi
Androgen deprivation therapy is commonly employed for the treatment of non-metastatic prostate cancer as primary or adjuvant treatment. The skeleton is greatly compromised in men with prostate cancer during androgen deprivation therapy because of the lack of androgens and estrogens, which are trophic factors for bone. Men receiving androgen deprivation therapy sustain variable degrees of bone loss with an increased risk of fragility fractures. Several bone antiresorptive agents have been tested in randomized controlled trials in these patients...
May 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28580388/association-of-gastrointestinal-events-with-osteoporosis-treatment-initiation-and-treatment-compliance-in-germany-an-observational-study
#5
Ankita Modi, Chun-Po Steve Fan, Jackson Tang, Jessica Papadopoulos Weaver, Shiva Sajjan
BACKGROUND: Gastrointestinal (GI) events are common in postmenopausal women treated for osteoporosis. The influence of GI events on treatment initiation and treatment compliance is the subject of ongoing research. OBJECTIVE: The objectives of this study were (i) to determine the association of GI events with receipt of treatment in patients newly diagnosed with osteoporosis, and (ii) among treated patients, to determine the association of GI events with treatment compliance...
December 2016: Bone Reports
https://www.readbyqxmd.com/read/28539165/drug-holidays-from-bisphosphonates-and-denosumab-in-postmenopausal-osteoporosis-emas-position-statement
#6
REVIEW
Panagiotis Anagnostis, Stavroula A Paschou, Gesthimani Mintziori, Iuliana Ceausu, Herman Depypere, Irene Lambrinoudaki, Alfred Mueck, Faustino R Pérez-López, Margaret Rees, Levent M Senturk, Tommaso Simoncini, John C Stevenson, Petra Stute, Florence A Trémollieres, Dimitrios G Goulis
BACKGROUND: Bisphosphonates and denosumab are used extensively in the treatment of postmenopausal osteoporosis. Despite their proven efficacy in the reduction of vertebral and non-vertebral fractures, their optimal duration of use has not been determined. The occurrence of adverse effects, such as osteonecrosis of the jaw (ONJ) and atypical femoral fractures (AFF), has raised the issue of bisphosphonate or denosumab discontinuation ("drug holiday") after a certain treatment period. AIM: To assess the effect of bisphosphonate and denosumab discontinuation on fracture risk, as well as its possible benefits in reducing the risk of adverse effects...
July 2017: Maturitas
https://www.readbyqxmd.com/read/28528283/poly-vinyl-alcohol-hydroxyapatite-monolithic-in-needle-extraction-mine-device-preparation-and-examination-of-drug-affinity
#7
Monika Pietrzyńska, Michał Czerwiński, Adam Voelkel
Polymer-ceramic materials based on poly(vinyl alcohol) (PVA) and hydroxyapatite were applied as sorption material in Monolithic In-Needle Extraction (MINE) device. The presented device provides new possibilities for the examination of bisphosphonates affinity for bone and will be a helpful tool in evaluation of potential antiresorptive drugs suitability. A ceramic part of monoliths was prepared by incorporation of hydroxyapatite (HA) into the reaction mixture or by using a soaking method (mineralization of HA on the PVA)...
May 17, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28492856/treatment-of-low-bone-density-or-osteoporosis-to-prevent-fractures-in-men-and-women-a-clinical-practice-guideline-update-from-the-american-college-of-physicians
#8
Amir Qaseem, Mary Ann Forciea, Robert M McLean, Thomas D Denberg
Description: This guideline updates the 2008 American College of Physicians (ACP) recommendations on treatment of low bone density and osteoporosis to prevent fractures in men and women. This guideline is endorsed by the American Academy of Family Physicians. Methods: The ACP Clinical Guidelines Committee based these recommendations on a systematic review of randomized controlled trials; systematic reviews; large observational studies (for adverse events); and case reports (for rare events) that were published between 2 January 2005 and 3 June 2011...
June 6, 2017: Annals of Internal Medicine
https://www.readbyqxmd.com/read/28482575/risedronate-transdermal-delivery-system-based-on-a-fumaric-copolymer-for-therapy-of-osteoporosis
#9
Magalí Pasqualone, Héctor A Andreetta, M Susana Cortizo
Transdermal drug delivery system (TDDS) could be seen as alternative to the oral administration which avoids several adverse effects. In this study a novel TDDS for risedronate (RI), a bisphosphonate used for osteoporosis treatment, based on a vinyl acetate-dioctylfumarate copolymer, poly(VA-co-DOF), previously synthetized, was developed. Two membranes including 6 and 12% (w/w) of drug were obtained, which exhibited good transparence and homogeneous drug distribution, as evaluated by optical microscopy. FTIR spectroscopy and differential scanning calorimetry (DSC) analysis showed no significant drug/polymer interactions, only a plasticizer effect...
July 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28443172/does-discontinuing-teriparatide-treatment-and-replacing-it-with-bisphosphonate-maintain-the-volume-of-the-bone-fusion-mass-after-lumbar-posterolateral-fusion-in-women-with-postmenopausal-osteoporosis
#10
Seiji Ohtori, Sumihisa Orita, Kazuyo Yamauchi, Yawara Eguchi, Yasuchika Aoki, Junichi Nakamura, Miyako Suzuki, Gou Kubota, Kazuhide Inage, Yasuhiro Shiga, Koki Abe, Kazuki Fujimoto, Hirohito Kanamoto, Masahiro Inoue, Hideyuki Kinoshita, Takeo Furuya, Masao Koda
STUDY DESIGN: Retrospective case series. PURPOSE: The purpose of this study was to determine whether discontinuing teriparatide treatment and replacing it with bisphosphonate treatment maintains the volume of the fusion mass after posterolateral fusion (PLF) in women with postmenopausal osteoporosis. OVERVIEW OF LITERATURE: Clinical data support the efficacy of parathyroid hormone (PTH) for lumbar PLF. However, the use of PTH is limited to 2 years...
April 2017: Asian Spine Journal
https://www.readbyqxmd.com/read/28399834/compliance-and-persistence-with-oral-bisphosphonates-for-the-treatment-of-osteoporosis-in-female-patients-with-rheumatoid-arthritis
#11
Ji-Heh Park, Eun-Kyoung Park, Dong-Wan Koo, Shinwon Lee, Sun-Hee Lee, Geun-Tae Kim, Seung-Geun Lee
BACKGROUND: Poor adherence with oral bisphosphonates (BPs) can mitigate their therapeutic benefit for osteoporosis and is a significant clinical burden. Most previous studies regarding adherence with oral BPs have focused on postmenopausal osteoporosis, but little attention has been given to patients with rheumatoid arthritis (RA). Thus, we investigated compliance and persistence with oral BPs in the treatment of osteoporosis and analyzed risk factors for poor adherence in female patients with (RA) in real setting...
April 11, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28337514/effect-of-sequential-treatment-with-bisphosphonates-after-teriparatide-in-ovariectomized-rats-a-direct-comparison-between-risedronate-and-alendronate
#12
Tetsuo Yano, Mei Yamada, Daisuke Inoue
Teriparatide (TPTD), a recombinant human parathyroid hormone N-terminal fragment (1-34), is a widely used bone anabolic drug for osteoporosis. Sequential treatment with antiresorptives such as bisphosphonates after TPTD discontinuation is generally recommended. However, relative effects of bisphosphonates have not been determined. In the present study, we directly compared effects of risedronate (RIS) and alendronate (ALN) on bone mineral density (BMD), bone turnover, structural property and strength in ovariectomized (OVX) rats, when administered after TPTD...
July 2017: Calcified Tissue International
https://www.readbyqxmd.com/read/28318330/changes-of-bone-mineral-density-and-serum-pentosidine-during-a-27-month-follow-up-of-monthly-minodronate-in-osteoporotic-patients
#13
Tsuyoshi Ohishi, Tomotada Fujita, Daisuke Suzuki, Tatsuya Nishida, Kazufumi Yamamoto, Ryo Okabayashi, Hiroki Ushirozako, Tomohiro Banno, Yukihiro Matsuyama
PURPOSE: Monthly regimen of minodronate for osteoporosis more than two years has not been reported yet. The aim of this study is to elucidate the effect of monthly minodronate (M-MIN) on bone mineral density (BMD) and serum pentosidine (Pen) during 27 months. MATERIALS AND METHODS: The study consisted of 52 newly treated patients (73.3 ± 8.8 years) (new group) and 47 patients (75.9 ± 9.5 years) who were switched from either alendronate or risedronate (switch group)...
March 20, 2017: Endocrine Research
https://www.readbyqxmd.com/read/28304090/osteoporosis-treatment-efficacy-for-men-a-systematic-review-and-meta-analysis
#14
REVIEW
Smita Nayak, Susan L Greenspan
OBJECTIVES: To evaluate the efficacy of treatment options to reduce osteoporotic fracture risk in men. DESIGN: Systematic review and meta-analysis. SETTING: Randomized clinical trials that evaluated the efficacy of a treatment for osteoporosis or low bone mineral density for adult men and reported fracture outcomes. PARTICIPANTS: Men. MEASUREMENTS: PubMed, Embase, and the Cochrane Library databases were searched for relevant studies...
March 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28296781/efficacy-and-safety-of-medical-therapy-for-low-bone-mineral-density-in-patients-with-crohn-disease-a-systematic-review-with-network-meta-analysis
#15
REVIEW
Xiaojing Zhao, Changcheng Zhou, Han Chen, Jingjing Ma, Yunjuan Zhu, Peixue Wang, Yi Zhang, Haiqin Ma, Hongjie Zhang
BACKGROUND: Low bone mineral density (BMD) is a frequent complication of inflammatory bowel disease (IBD), particularly in patients with Crohn disease (CD). The aim of our study is to determine the efficacy and safety of different drugs used to treat low BMD in patients with CD. METHODS: PUBMED/MEDLINE, EMBASE, and Cochrane Central Register of Controlled Trials were searched for eligible studies. A random-effects model within a Bayesian framework was applied to compare treatment effects as standardized mean difference (SMD) with their corresponding 95% credible interval (CrI), while odds ratio (OR) was applied to compare adverse events with 95% CrI...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28283937/effect-of-bisphosphonate-initiation-at-week-2-versus-week-12-on-short-term-functional-recovery-after-femoral-neck-fracture-a-randomized-controlled-trial
#16
Aasis Unnanuntana, Panai Laohaprasitiporn, Atthakorn Jarusriwanna
The appropriate time to initiate bisphosphonate treatment after a fragility fracture has not yet been established. In this study, we found no significant differences in short-term functional recovery between femoral neck fracture patients who received bisphosphonate treatment at 2 versus 12 weeks after hemiarthroplasty. INTRODUCTION: Bisphosphonate is the mainstay therapy for prevention and treatment of osteoporosis. The aim of this study was to investigate the effect of bisphosphonate initiation on short-term functional recovery in femoral neck fracture patients at 2 versus 12 weeks after hemiarthroplasty...
December 2017: Archives of Osteoporosis
https://www.readbyqxmd.com/read/28265719/health-state-utility-values-and-patient-reported-outcomes-before-and-after-vertebral-and-non-vertebral-fractures-in-an-osteoporosis-clinical-trial
#17
T Imai, S Tanaka, K Kawakami, T Miyazaki, H Hagino, M Shiraki
We assessed the health state utility value (HSUV) reductions associated with vertebral fractures using data collected in the Japanese Osteoporosis Intervention Trial-03 (JOINT-03). Our analysis revealed that assessment of HSUVs after morphometric vertebral fracture is important to capture the burden of vertebral fractures. INTRODUCTION: Evaluation of the HSUV after fracture is important to calculate the quality-adjusted life years (QALYs) of osteoporosis patients, which is essential information in the context of health economic evaluation...
March 6, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28243883/two-year-persistence-and-compliance-with-osteoporosis-therapies-among-postmenopausal-women-in-a-commercially-insured-population-in-the-united-states
#18
Emily Durden, Lionel Pinto, Lorena Lopez-Gonzalez, Paul Juneau, Richard Barron
This retrospective, observational study assessed 2-year persistence and compliance by treatment, route of administration, and dosing frequency in postmenopausal women initiating a new osteoporosis therapy. Two-year persistence and compliance rates were higher in women receiving injectables compared with oral agents. PURPOSE: This study extends previous studies limited to 1-year follow-up by examining persistence with osteoporosis therapies over a 2-year period and compares short- and long-term trends in persistence and compliance among postmenopausal women with commercial or Medicare supplemental insurance in the USA...
December 2017: Archives of Osteoporosis
https://www.readbyqxmd.com/read/28243105/short-term-bisphosphonate-treatment-reduces-serum-25-oh-vitamin-d3-and-alters-values-of-parathyroid-hormone-pentosidine-and-bone-metabolic-markers
#19
Mikio Kamimura, Shigeharu Uchiyama, Yukio Nakamura, Shota Ikegami, Keijiro Mukaiyama, Hiroyuki Kato
This study aimed to clarify the effects of short-term bisphosphonate (BP) administration in Japanese osteoporotic patients retrospectively. Daily minodronate (MIN) at 1 mg/day (MIN group) or weekly risedronate (RIS) at 17.5 mg/week (RIS group) was primarily prescribed for each patient. We analyzed the laboratory data of 35 cases (18 of MIN and 17 of RIS) before the start of treatment and at 4 months afterward. The changes in 25(OH)D3, whole parathyroid hormone (PTH), serum pentosidine, and the bone turnover markers urinary cross-linked N-telopeptide of type I collagen (NTX), serum tartrate-resistant acid phosphatase (TRACP)-5b, bone-specific alkaline phosphatase (BAP), and undercarboxylated osteocalcin were evaluated...
2017: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/28235624/design-of-novel-injectable-in-situ-forming-scaffolds-for-non-surgical-treatment-of-periapical-lesions-in-vitro-and-in-vivo-evaluation
#20
Rehab N Shamma, Nermeen A Elkasabgy, Azza A Mahmoud, Shaimaa I Gawdat, Mohamed M Kataia, Mohamed A Abdel Hamid
Periapical lesions are considered one of the common pathological conditions affecting alveolar bone. The primary focus of this study was to investigate the effectiveness of formulating an injectable in-situ forming scaffold-loaded with risedronate (bone resorption inhibitor) and with lornoxicam (anti-inflammatory drug) for the non-surgical treatment of periapical lesions. The scaffolds were prepared using solvent-induced phase inversion technique. Two insoluble copolymers were investigated namely; PLGA (ester-terminal) and PLGA-A (acid-terminal), additionally, SAIB was added as a high viscosity water-insoluble carrier...
April 15, 2017: International Journal of Pharmaceutics
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