No abstract available.
Alendronate* ; Animals ; Rats*

No abstract available.
Alendronate* ; Animals ; Diphosphonates ; Rats*

No abstract available.
Alendronate ; Cell Proliferation

No abstract available.
Alendronate ; Humans ; Osteoporosis ; Vitamin D ; Vitamins

No abstract available.
Alendronate ; Humans ; Osteoporosis ; Vitamin D ; Vitamins

PURPOSE: Alendronate has been proposed as a local and systemic drug treatment used as an adjunct to scaling and root planing (SRP) for the treatment of periodontitis. However, its effectiveness has yet to be conclusively established. The purpose of the present meta-analysis was to assess the effectiveness of SRP with alendronate on periodontitis compared to SRP alone. METHODS: Five electronic databases were used by 2 independent reviewers to identify relevant articles from the earliest records up to September 2016. Randomized controlled trials (RCTs) comparing SRP with alendronate to SRP with placebo in the treatment of periodontitis were included. The outcome measures were changes in bone defect fill, probing depth (PD), and clinical attachment level (CAL) from baseline to 6 months. A fixed-effect or random-effect model was used to pool the extracted data, as appropriate. Mean differences (MDs) with 95% confidence intervals (CIs) were calculated. Heterogeneity was assessed using the Cochrane χ² and I2 tests. RESULTS: After the selection process, 8 articles were included in the meta-analysis. Compared with SRP alone, the adjunctive mean benefits of locally delivered alendronate were 38.25% for bone defect fill increase (95% CI=33.05–43.45; P<0.001; I²=94.0%), 2.29 mm for PD reduction (95% CI=2.07–2.52 mm; P<0.001; I²=0.0%) and 1.92 mm for CAL gain (95% CI=1.55–2.30 mm; P<0.001; I²=66.0%). In addition, systemically administered alendronate with SRP significantly reduced PD by 0.36 mm (95% CI=0.18–0.55 mm; P<0.001; I²=0.0%) and increased CAL by 0.39 mm (95% CI=0.11–0.68 mm; P=0.006; I²=6.0%). CONCLUSIONS: The collective evidence regarding the adjunctive use of alendronate locally and systemically with SRP indicates that the combined treatment can improve the efficacy of non-surgical periodontal therapy on increasing CAL and bone defect fill and reducing PD. However, precautions must be exercised in interpreting these results, and multicenter studies evaluating this specific application should be carried out.
Alendronate* ; Outcome Assessment (Health Care) ; Periodontitis* ; Population Characteristics ; Root Planing*

OBJECTIVES: To evaluate the effect of postmenopausal hormone therapy alone or in combination with bisphosphonate on bone mineral density (BMD) in postmenopausal women. METHODS: One hundred three women diagnosed with low BMD in postmenopausal women were included in this study. All patients were classified into two groups; oarl hormone therpy alone (Group I) or with alendronate (Group II), given for 12 months. Dual energy X-ray absorptiometry was used to measure BMD before and after 12 months of treatment. RESULTS: In all groups, significant increase in bone density measurements were seen at 12 months of treatment. The BMD of lumbar spine more increased significantly in Group II than Group I. CONCLUSIONS: Postmenopausal hormone therapy is effective in osteopenic and osteoporotic women. However, the combined treatment with hormone therapy and bisphophonate is more effective in postmenopausal women with low BMD.
Absorptiometry, Photon ; Alendronate ; Bone Density ; Female ; Humans ; Menopause ; Spine

PURPOSE: To evaluate the changes in bone mineral density (BMD) after alendronate intake and to determine the side effects and patient compliance. MATERIALS AND METHODS: Two hundred twelve patients with osteoporosis were treated with alendronate. One hundred sixty-two patients were excluded because of early discontinuation. Thus, 50 patients were included in the analysis. RESULTS: The annual increase in BMD in patients taking alendronate was 7.2% (1st year), 3.4%, 2.0%, and 0.9% (4th year) in the L-spine, and 2.2%, 1.5%, -0.9%, and 0.9% in the femur. The changes in BMD of patients< 60 years of age were 2.1% in the L-spine and 3.4% in the femur. The BMD of patients between 60 and 69 years of age increased 6.3% and 0.5% in the L-spine and femur, respectively, and the BMD of patients >70 of age were 2.9% and 1.2% in the L-spine and femur, respectively. The BMD changes in patients with a T-score< -4.0 were 7.0% (L-spine) and 1.2% (femur), the BMD changes in patients with a T-score between -3.0 and -3.9 were 5.3% and 0.2% for the Lspine and femur, respectively, and the BMD changes in patients with a T-score >3.0 were 2.5% and 3.1% for the Lspine and femur, respectively. The reasons for early discontinuation of alendronate were difficulty in intake, economic reasons, and adverse events. CONCLUSION: The BMD changes were greater in the L-spine than the femu in alendronate users. At the first year, the changes in BMD was greatest. There was no significant difference in BMD change according to age. In the Lspine, however, BMD changes were greater in the group with lower T-scores. The early discontinuance rate was 74%, and the adverse events rate was 19.8%.
Alendronate ; Bone Density ; Femur ; Humans ; Osteoporosis ; Patient Compliance

BACKGROUNDBiphasic calcium phosphate (BCP) ceramics has a potential advantage as an osteoconductive matrix and has an optimal resorption rate for bone formation. Using BCP ceramics as a bone graft during spinal fusion requires osteogenesis within the material and subsequent bridging between adjacent vertebrae to provide long-term support. Bisphosphonates have been reported to prolong the process of bone healing. The influence of bisphosphonate treatment on bone formation within BCP ceramics in spinal fusion remains unknown. The aim of this study was to evaluate the influence of alendronate on BCP osteogenesis in posterolateral spinal fusion.

METHODSPosterolateral spinal fusion with pedicle screw fixation was performed at the lumbar spine in twenty-two pigs. BCP ceramics were applied as a bone graft to obtain bone fusion between adjacent transverse processes. Eleven pigs in the treatment group received oral alendronate 10 mg/d for three months postoperatively. Eleven pigs in the control group did not receive treatment with alendronate. All animals underwent posterolateral spinal fusion with BCP ceramics. The fusion rate was evaluated three months after the operation.

RESULTSThe fusion rates evaluated by X-ray were 27.3% in the treatment group and 20% in the control group. The fusion rates using histological evaluation were 18.2% in the treatment group and 20% in the control group. The mean volumes of fusion mass were (3.64 +/- 0.86) cm(3) in the treatment group and (4.26 +/- 0.63) cm(3) in the control group. No significant differences were found in either trabecular bone volume or residual BCP volume between treatment and control groups using histological evaluation. The new bone formation within BCP ceramics was greater in the area adjacent to transverse process (P < 0.01).

CONCLUSIONOral alendronate with a dose of 10 mg daily do not inhibit bone formation within BCP ceramics or affect the fusion rate in posterolateral spinal fusion from porcine models.

Alendronate ; pharmacology ; Animals ; Calcium Phosphates ; chemistry ; Ceramics ; chemistry ; Female ; Osteogenesis ; drug effects ; Spinal Fusion ; Swine

Previous studies have demonstrated an increase in bone mass and density with the use of bisphosphonate in osteoporosis. This agent acts as an inhibitor of osteoclastic activity, and results in increase of net osteoblastic activity. Currently, it has been reported that bisphosphonate has direct effect on osteoblast. This study was designed to evaluate the effect of alendronate on bone regeneration in defect of rat calvaria. The animals used for these experiments were 48 male rats, over 6-8 weeks old. They were divided into three groups according to the dose of alendronate(MK-217(R), Merck, USA) administered. After the calvarial defects were surgically created, the rats received a peritoneal alendronate(0.25mg/kg) in group I, a peritoneal alendronate(1.25mg/kg) in group II, and a peritoneal normal saline injection in the control group. Three and six weeks later, blood was sampled and evaluated for alkaline phosphatase activity. The animals were sacrificed for histological observation and histometric analysis of the level of bone formation. The alkaline phosphatase activity was similar in three groups at 3 weeks of experiment. The activity at 6 weeks increased more than twice, compared to 3 weeks, and was slightly higher in group I than the other two groups. In histological observation, all the groups at 3 weeks, osteoblast rimming and new bone formation were observed along the defect margin. At 6 weeks, the defect was almost closed with new and more mature bone, but new bone is thinner than original bone in the central portion of defect. In histometric analysis, group I and II at 3 weeks showed significantly greater new bone formation than the control, and all the groups at 6 weeks showed similar amount of bone formation. These result suggest that alendronate administration in the dose of 0.25mg/kg and 1.25mg/kg promote osseous regeneration.
Alendronate* ; Alkaline Phosphatase ; Animals ; Bone Regeneration* ; Humans ; Male ; Osteoblasts ; Osteoclasts ; Osteogenesis ; Osteoporosis ; Rats* ; Regeneration ; Skull*