scholarly journals Bisphophonate alterations of the jaw bones in individuals with multiple myeloma

2020 ◽  
Vol 49 (2) ◽  
pp. 20190155 ◽  
Author(s):  
Édila Figuerêdo Feitosa ◽  
Mariana Monteiro Vasconcellos ◽  
Roberto José Pessoa Magalhães ◽  
Andrea Castro Domingos-Vieira ◽  
Maria Augusta Visconti ◽  
...  
Keyword(s):  
Multiple Myeloma ◽  
Medical Records ◽  
Cone Beam ◽  
Control Group ◽  
Intraoral Radiography ◽  
Dimensional Changes ◽  
Jaw Bones ◽  
Gender And Age ◽  
Digital Intraoral Radiography ◽  
Molar Region

Objectives: To verify quantitative differences of the mandibular cortical and trabecular bone between patients with multiple myeloma (MM) under bisphosphonate (BP) therapy and a control group never exposed to BP. Methods: Clinical and demographic characteristics were collected through medical records and interviews. Mandibular cortical thickness (MCT) and fractal dimension (FD) were measured on cone beam computed tomography (CBCT) images, on the molar region, in both groups. Additionally, FD was measured on periapical digital intraoral radiography and results were compared to CBCT measurements. Results: There were 33 patients with MM under BP therapy and 28 controls, with no significant differences in gender and age between groups. Pamidronate was used by all MM patients, either associated or not to other types of BP. The median MCT was higher in MM group exposed to BP (5.20 mm) than in controls (3.50 mm, p < 0.001). There were no significant differences in the median FD between patients in the MM group and controls, on CBCT (0.95 vs 0.90, p = 0.814) and periapical digital intraoral radiography (0.98 vs 0.96, p = 0.963), respectively, even when more than one type of BP was used. Conclusions: The MCT represents an useful tool in the detection of bone dimensional changes caused by BP, in patients with MM. Additional studies are necessary to improve the knowledge on the quantitative evaluation of trabecular jaw bone, in individuals with MM, under BP therapy.

scholarly journals Detection of simulated periodontal defects using cone-beam CT and digital intraoral radiography

2016 ◽  
Vol 45 (6) ◽  
pp. 20160030 ◽  
Author(s):  
Samaneh Bayat ◽  
Ahmad Reza Talaeipour ◽  
Fatemeh Sarlati
Keyword(s):  
Cone Beam Ct ◽  
Cone Beam ◽  
Intraoral Radiography ◽  
Digital Intraoral Radiography

Comparison of cone beam computed tomography and digital intraoral radiography performance in the detection of artificially induced recurrent caries-like lesions

2017 ◽  
Vol 124 (3) ◽  
pp. 306-314 ◽  
Author(s):  
Saulo Leonardo Sousa Melo ◽  
Manuella Dias Furtado Belem ◽  
Lucia Trazzi Prieto ◽  
Cinthia Pereira Machado Tabchoury ◽  
Francisco Haiter-Neto
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Cone Beam ◽  
Intraoral Radiography ◽  
Digital Intraoral Radiography

scholarly journals Comparison of the accuracy of cone-beam computed tomography, photostimulable phosphor imaging plate, charge coupled device, and conventional intraoral radiography in the diagnosis of internal root resorption: an in vitro study

2014 ◽  
Vol 17 (1) ◽  
pp. 72
Author(s):  
Abbas Shokri ◽  
Jalal Poorolajal ◽  
Farhad Faramarzi
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Root Resorption ◽  
Cone Beam ◽  
Control Group ◽  
Imaging Plate ◽  
Intraoral Radiography ◽  
Charge Coupled Device ◽  
Anterior Teeth ◽  
Photostimulable Phosphor

<p><strong>Objective</strong>: Various radiographic methods are used to identify the internal root resorption. The aim of this study was to assess and compare the diagnostic accuracy of cone-beam computed tomography (CBCT), photostimulable phosphor (PSP) imaging plate, charge coupled device (CCD), and conventional intraoral radiography (CIR), for internal root resorption.</p><p><strong>Methods</strong>: This experimental study was conducted in Hamadan in 2012. Fifty seven carries-free anterior teeth were divided into three intervention groups of 15 teeth and one control group of 12 teeth. Teeth were split into two parts using a disk. Cavities of 0.5, 1 and 1.5 mm in depth were created in root canal of teeth to simulate internal root resorption artificially. Finally, the teeth fragments were fused. All teeth were examined with four different procedures and the results were compared with known simulated internal root resorption as the gold standard to determine the sensitivity and specificity of the procedures.</p><p><strong>Results</strong>: The sensitivity of CBCT, PSP, CCD, and CIR for diagnosis internal root resorption of 0.5 mm in depth was 93%, 73%, 60%, and 53% respectively. The sensitivity of all four procedures for diagnosis of internal root resorption with 1 and 1.5 mm in depth was the same and equal to 100%. Specificity of the four radiology procedures for diagnosis of internal root resorption of any depth was 100%, 100%, 83% and 75% respectively.</p><p><strong>Conclusion</strong>: CBCT provides the most accurate information on the depth and location of root resorption followed by the PSP and CCD respectively. Accordingly, conventional intraoral radiography was the least accurate procedure.</p>

scholarly journals Comparison of Cone-Beam Computed Tomography and Intraoral Radiography in Detection of Recurrent Caries under Composite Restorations

2017 ◽  
Vol 28 (1) ◽  
pp. 85-91 ◽  
Author(s):  
Shahin Kasraei ◽  
Abbas Shokri ◽  
Jalal Poorolajal ◽  
Samira Khajeh ◽  
Hamid Rahmani
Keyword(s):  
Computed Tomography ◽  
Diagnostic Accuracy ◽  
Cone Beam Computed Tomography ◽  
Composite Resin ◽  
Dental Restoration ◽  
Cone Beam ◽  
Intraoral Radiography ◽  
Secondary Caries ◽  
Composite Restorations ◽  
Digital Intraoral Radiography

Abstract Secondary caries is the most common cause of dental restoration failures. This study aimed to compare the diagnostic accuracy of conventional and digital intraoral radiography and cone beam computed tomography (CBCT) for detection of recurrent caries around composite restorations. mesio-occluso-distal (MOD) cavities were prepared using bur on 45 extracted sound human molar teeth. The teeth were divided into 3 groups. In the control group, cavities were restored with composite resin after etching and bonding (n=15). In Group 2, 500-μm thick wax was placed over the buccal, lingual and gingival walls and the cavities were restored with composite resin. Group 3 specimens were subjected to pH cycling and artificial caries were created on the buccal, lingual and gingival walls. The cavities were restored with composite. Conventional and digital photo-stimulable phosphor (PSP; Optime) radiographs and two CBCTs images (NewTom 3G and Cranex 3D) were obtained from them. Presence or absence of caries in the cavity walls was assessed on these images. Data were analyzed using Kappa statistic. The diagnostic accuracy of CBCT was significantly higher than that of digital and conventional intraoral radiography (p<0.05). The accuracy was 0.83, 0.78, 0.55 and 0.49 for CBCT Cranex 3D, CBCT NewTom 3G, conventional and digital intraoral radiography, respectively. CBCT has a higher diagnostic accuracy than digital and conventional intraoral radiography for detection of secondary caries around composite restorations.

Association of the CD14 C159T and the Toll-like receptor 4 Asp299Gly polymorphisms with various phenotypes of asthma in adults from Crimea

2020 ◽  
Vol 41 (2) ◽  
pp. 134-140
Author(s):  
Yuriy Bisyuk ◽  
Andrew Dubovyi ◽  
Ilona DuBuske ◽  
Viktor Litus ◽  
Lawrence M. DuBuske
Keyword(s):  
Late Onset ◽  
Adult Population ◽  
Additive Models ◽  
Atopic Asthma ◽  
Control Group ◽  
Nucleotide Polymorphisms ◽  
Toll Like Receptor ◽  
Toll Like Receptor 4 ◽  
Single Nucleotide ◽  
Gender And Age

Background: This study assessed gene polymorphisms of the CD14 receptor (C-159T) and Toll-like receptor 4 (Asp299Gly) in a patient population in Crimea, Ukraine, stratified by clinical (early versus late onset; frequent versus occasional relapses; fixed versus reversible obstruction) and immunologic (atopic versus nonatopic; eosinophilic; neutrophilic or paucigranulocytic inflammation) subtype. Methods: Two polymorphisms, CD14 C-159T and TLR4 Asp299Gly, were assessed in 331 patients with asthma. The control group included 285 volunteers who were nonatopic. The single nucleotide polymorphisms were studied by using polymerase chain reaction with electrophoretic detection. Results: There were increased odds of asthma development in patients with the Asp299Gly TLR4 mutation compared with the general population underdominant odds ratio (OR) 1.52 [95% confidence interval (CI), 1.00‐2.32] and overdominant (OR 1.55 [95% CI, 1.01‐2.38]) models after adjustment for gender and age. In addition, mutations in this gene decreased the odds of nonatopic asthma in underdominant (OR 0.26 [95% CI, 0.07‐0.93]; p = 0.027), overdominant (OR 0.27 [95% CI, 0.07‐0.96]; p = 0.033), and log-additive models (OR 0.26 [95% CI, 0.07‐0.93]; p = 0.026) compared with the atopic subgroup after adjustment for gender, age, number of exacerbations, and type of airway inflammation. Allele frequencies for CD14 and TLR4 polymorphisms did not show statistical differences between the patients with asthma and the control subjects. Conclusion: CD14 C-159T polymorphisms were not associated with asthma in the adult population in Crimea. TLR4 Asp299Gly polymorphisms were associated with asthma and with decreased odds of nonatopic asthma compared with atopic asthma in the adult population in Crimea.

Ruxolitinib Regulates the Autophagy Machinery in Multiple Myeloma Cells

2020 ◽  
Vol 20 (18) ◽  
pp. 2316-2323 ◽  
Author(s):  
Alican Kusoglu ◽  
Bakiye G. Bagca ◽  
Neslihan P.O. Ay ◽  
Guray Saydam ◽  
Cigir B. Avci
Keyword(s):  
Multiple Myeloma ◽  
Cell Line ◽  
B Lymphocyte ◽  
Plasma Cells ◽  
Annexin V ◽  
Myeloma Cell ◽  
Control Group ◽  
Multiple Myeloma Cell ◽  
Ic50 Values ◽  
Stat Pathway

Background: Ruxolitinib is a selective JAK1/2 inhibitor approved by the FDA for myelofibrosis in 2014 and nowadays, comprehensive investigations on the potential of the agent as a targeted therapy for haematological malignancies are on the rise. In multiple myeloma which is a cancer of plasma cells, the Interleukin- 6/JAK/STAT pathway is emerging as a therapeutic target since the overactivation of the pathway is associated with poor prognosis. Objective: In this study, our purpose was to discover the potential anticancer effects of ruxolitinib in ARH-77 multiple myeloma cell line compared to NCI-BL 2171 human healthy B lymphocyte cell line. Methods: Cytotoxic effects of ruxolitinib in ARH-77 and NCI-BL 2171 cells were determined via WST-1 assay. The autophagy mechanism induced by ruxolitinib measured by detecting autophagosome formation was investigated. Apoptotic effects of ruxolitinib were analyzed with Annexin V-FITC Detection Kit and flow cytometry. We performed RT-qPCR to demonstrate the expression changes of the genes in the IL-6/JAK/STAT pathway in ARH-77 and NCI-BL 2171 cells treated with ruxolitinib. Results: We identified the IC50 values of ruxolitinib for ARH-77 and NCI-BL 2171 as 20.03 and 33.9μM at the 72nd hour, respectively. We showed that ruxolitinib induced autophagosome accumulation by 3.45 and 1.70 folds in ARH-77 and NCI-BL 2171 cells compared to the control group, respectively. Treatment with ruxolitinib decreased the expressions of IL-6, IL-18, JAK2, TYK2, and AKT genes, which play significant roles in MM pathogenesis. Conclusion: All in all, ruxolitinib is a promising agent for the regulation of the IL-6/JAK/STAT pathway and interferes with the autophagy mechanism in MM.

PP455 Cost-effectiveness Of Ixazomib-Based Regimen Compared With Bortezomib-Based Regimen In Chinese Patients With Relapsed/Refractory Multiple Myeloma: A Retrospective Study

2020 ◽  
Vol 36 (S1) ◽  
pp. 36-37
Author(s):  
Pei Wang ◽  
Jing Li ◽  
Yang Yang ◽  
Peng Liu
Keyword(s):  
Multiple Myeloma ◽  
Adverse Events ◽  
Staging System ◽  
Chinese Patients ◽  
Disease Stage ◽  
Control Group ◽  
Therapeutic Effects ◽  
Lower Grade ◽  
Refractory Multiple Myeloma ◽  
Grade 3

IntroductionThe treatment of relapsed/refractory multiple myeloma (RRMM), a common hematological malignancy, remains a great challenge in China, partially due to the limited accessibility to novel agents and inadequate public health insurance coverage. Ixazomib, a novel oral proteasome inhibitor (PI), was approved by the China Food and Drug Administration (CFDA) for RRMM in 2018. While bortezomib, a traditional PI, is the recommended agent in the clinical guideline for MM. Here, we compared their costs and effectiveness.MethodsRRMM patients who has received an ixazomib-based regimen (at least 2 cycles) were analyzed. Using a propensity score matching method, we generated a control group of RRMM patients who received the bortezomib-based regimen. The criteria included the number of treatment lines, age, and the revised international staging system stage (R-ISS) which representing the disease stage for myeloma, and paired at a ratio of 1:2 (allowing one control to match multiples). The difference in hospitalization stay, grade 3/4 adverse events rates, overall response rate (ORR), mortality during treatment, and treatment costs was then compared.ResultsNineteen patients received ixazomib and twenty-seven that received bortezomib were included. The ixazomib-group demonstrated a shorter hospital stay (9 days versus 27 days, p < 0.001), lower grade 3–4 adverse events rates (42.1% versus 55.6%, p < 0.001), higher ORR (63.2% versus 48.1%, p = 0.228), and lower mortality rate during treatment (0% versus 7.4%, p = 0.169) than that of bortezomib-group. The ixazomib group had lower total costs (127,620CNY versus 156,424CNY [18,033USD versus 22,103USD], p > 0.05), lower drug costs (98,376CNY versus 103,307CNY [13,901USD versus 14,598USD], p > 0.05), and the lower costs of supportive treatment (5,507CNY versus 14,701 CNY [778USD versus 2,077USD], p < 0.001). Only in terms of self-funded costs, the bortezomib-based regimen was significantly lower (37,127CNY versus 11,521CNY [5,246USD versus 1,628USD], p < 0.001).ConclusionsCompared with the bortezomib-based regimen, the ixazomib-based regimen has better therapeutic effects on MM patients while saving costs. Hence, it may be preferable for use in the treatment of RRMM in China.

scholarly journals Effect of Instruction on Preventing Delayed Bleeding after Colorectal Polypectomy and Endoscopic Mucosal Resection

2021 ◽  
Vol 10 (5) ◽  
pp. 928
Author(s):  
Takuya Okugawa ◽  
Tadayuki Oshima ◽  
Keisuke Nakai ◽  
Hirotsugu Eda ◽  
Akio Tamura ◽  
...  
Keyword(s):  
Risk Factors ◽  
Medical Records ◽  
Colorectal Polyp ◽  
Control Group ◽  
Single Center ◽  
Antithrombotic Agents ◽  
Delayed Bleeding ◽  
Factors Associated ◽  
Independent Risk Factors ◽  
Continuous Use

Background: The frequency of delayed bleeding after colorectal polypectomy has been reported as 0.6–2.8%. With the increasing performance of polypectomy under continuous use of antithrombotic agents, care is required regarding delayed post-polypectomy bleeding (DPPB). Better instruction to educate endoscopists is therefore needed. We aimed to evaluate the effect of instruction and factors associated with delayed bleeding after endoscopic colorectal polyp resection. Methods: This single-center, retrospective study was performed to assess instruction in checking complete hemostasis and risk factors for onset of DPPB. The incidence of delayed bleeding, comorbidities, and medications were evaluated from medical records. Characteristics of historical control patients and patients after instruction were compared. Results: A total of 3318 polyps in 1002 patients were evaluated. The control group comprised 1479 polyps in 458 patients and the after-instruction group comprised 1839 polyps in 544 patients. DPPB occurred in 1.1% of polyps in control, and 0.4% in after-instruction. Instruction significantly decreased delayed bleeding, particularly in cases with antithrombotic agents. Hot polypectomy, clip placement, and use of antithrombotic agents were significant independent risk factors for DPPB even after instruction. Conclusion: The rate of delayed bleeding significantly decreased after instruction to check for complete hemostasis. Even after instruction, delayed bleeding can still occur in cases with antithrombotic agents or hot polypectomy.

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