Impact of imatinib or dasatinib coadministration on in vitro preantral follicle development and oocyte acquisition in cyclophosphamide-treated mice

Objective: We investigated the impact of tyrosine kinase inhibitor (imatinib or dasatinib) coadministration with cyclophosphamide (Cp) on preantral follicle development in an in vitro mouse model.Methods: Seventy-three female BDF1 mice were allocated into 4 experimental groups: group A, saline; group B, Cp (25 mg/kg); group C, Cp (25 mg/kg) and imatinib (7.5 mg/kg); and group D, Cp (25 mg/kg) and dasatinib (7.5 mg/kg). Preantral follicles were isolated and cultured in vitro up to 12 days. Final oocyte acquisition and spindle integrity of metaphase II (MII) oocytes were assessed. Levels of 17β-estradiol and anti-Müllerian hormone (AMH) in the final spent media were measured by enzyme-linked immunosorbent assays, and the mRNA levels of Star, Sod1, Mapk3, and Casp3 in the final follicular cells were quantified by real-time polymerase chain reaction.Results: The percentage of MII oocytes per initiated follicle, the proportion of MII oocytes with normal spindles, and the 17β-estradiol level were similar in all four groups. The median AMH level in group B (7.74 ng/mL) was significantly lower than that in group A (10.84 ng/mL). However, the median AMH levels in group C (9.96 ng/mL) and group D (9.71 ng/mL) were similar to that in group A. The mRNA expression levels of Star, Sod1, Mapk3, and Casp3 were similar in all four groups.Conclusion: Coadministration of imatinib or dasatinib with Cp could preserve AMH production capacity in this in vitro mice preantral follicle culture model, and it did not affect MII oocyte acquisition.

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The Impact of Left Atrial Size in Catheter Ablation of Atrial Fibrillation Using Remote Magnetic Navigation

Cardiology Research and Practice ◽

10.1155/2018/3096261 ◽

2018 ◽

Vol 2018 ◽

pp. 1-8

Author(s):

Xiao-yu Liu ◽

Hai-feng Shi ◽

Jie Zheng ◽

Ku-lin Li ◽

Xiao-xi Zhao ◽

...

Keyword(s):

Atrial Fibrillation ◽

Catheter Ablation ◽

Left Atrial ◽

Magnetic Navigation ◽

Remote Magnetic Navigation ◽

X Ray ◽

Group A ◽

Group B ◽

The Impact

Objective. The objective of this study was to investigate the impact of left atrial (LA) size for the ablation of atrial fibrillation (AF) using remote magnetic navigation (RMN). Methods. A total of 165 patients with AF who underwent catheter ablation using RMN were included. The patients were divided into two groups based on LA diameter. Eighty-three patients had small LA (diameter <40 mm; Group A), and 82 patients had a large LA (diameter ≥40 mm; Group B). Results. During mapping and ablation, X-ray time (37.0 (99.0) s vs. 12 (30.1) s, P<0.001) and X-ray dose (1.4 (2.7) gy·cm2 vs. 0.7 (2.1) gy·cm2, P=0.013) were significantly higher in Group A. No serious complications occurred in any of the patients. There was no statistical difference in the rate of first anatomical attempt of pulmonary vein isolation between the two groups (71.1% vs. 57.3%, P=0.065). However, compared with Group B, the rate of sinus rhythm was higher (77.1% vs. 58.5%, P<0.001) during the follow-up period. More patients in Group A required a sheath adjustment (47/83 vs. 21/82, P<0.001), presumably due to less magnets positioned outside of the sheath. In vitro experiments with the RMN catheter demonstrated that only one magnet exposed created the sheath affects which influenced the flexibility of the catheter. Conclusions. AF ablation using RMN is safe and effective in both small and large LA patients. Patients with small LA may pose a greater difficulty when using RMN which may be attributed to the fewer magnets beyond the sheath. As a result, the exposure of radiation was increased. This study found that having at least two magnets of the catheter positioned outside of the sheath can ensure an appropriate flexibility of the catheter.

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EVALUATION OF THE EFFECT OF FERROUS SULFATE ON ENAMEL DEMINERALIZATION OF HUMAN DECIDUOUS TEETH: AN IN VITRO STUDY

Journal of Dentistry & Public Health ◽

10.17267/2596-3368dentistry.v8i3.1549 ◽

2017 ◽

Vol 8 (3) ◽

pp. 83-89

Author(s):

Johnny Holanda De Gauw ◽

Lara Maria Melo Costa ◽

Rodrigo Neves Silva ◽

Natanael Barbosa Santos ◽

Maria Dânia Holanda Tenorio

Keyword(s):

Ferrous Sulfate ◽

Polarized Light ◽

In Vitro Study ◽

Deciduous Teeth ◽

Control Group ◽

Group A ◽

Ph Cycling ◽

Group B ◽

Group D

Objective: This study aimed to evaluate the effect of ferrous sulfate (FS) on demineralized and non-demineralized human deciduous teeth. Additionally, it was evaluated the penetration extent of FS and its remineralizing effect on the enamel of deciduous teeth using Polarized Light Microscopy (PLM). Method: The sample comprised 44 human deciduous teeth. The 44 crowns were divided randomly into four groups: group A (FS after demineralization), group B (FS without demineralization), group C (only demineralization), and group D (control group). FS at 0.45 mol/L-1 was used daily (15 days) and demineralization was done by pH cycling (7 days). Then, three longitudinal slices of the crowns were photographed using PLM. The degree of penetration of the lesion or stain was measured in micrometers, as well as the distance between the external enamel surface and the core of lesion. Results: Group A showed a dark stain on the outer surface of enamel larger than the group B. It is suggested, a remineralizing effect when comparing groups, A and C. The mean depth and standard deviation for groups A, B, and C were 4.27µm (±1.49), 3.72 µm (±1.68) and 5.00 µm (±1.84), respectively. No dark stains were observed in group D. Conclusion: FS stained the demineralized and non-demineralized human deciduous teeth. However, dark stains in the non-demineralized teeth were smaller or absent, than in the demineralized teeth. Therefore, FS may have a protective effect against demineralization.

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Erosive potential of three different commonly used pediatric syrups on deciduous teeth enamel: an in vitro study

International Journal of Contemporary Pediatrics ◽

10.18203/2349-3291.ijcp20204050 ◽

2020 ◽

Vol 7 (10) ◽

pp. 2041

Author(s):

Neha Thilak ◽

Sundeep K. Hedge ◽

Sham S. Bhat

Keyword(s):

In Vitro Study ◽

Titratable Acidity ◽

Deciduous Teeth ◽

Hardness Tester ◽

Titrable Acidity ◽

Group A ◽

Group B ◽

Post Hoc ◽

Group D

Background: The aim of the study is to compare the erosive potential of three different commonly used pediatric syrups on deciduous teeth enamel. The objectives of the study were to assess the endogeneous pH and titratable acidity of mefenamic acid syrup (meftal P), cetrizine syrup (alerid) and multivitamin syrup (zincovit) and to evaluate the microhardness of the enamel after successive immersion cycles in each of the syrups.Methods: 40 non carious deciduous teeth were included for the study The samples were then randomly allocated into 4 groups (10 in each group): Group A- mefenemic acid syrup (meftal P), Group B- cetrizine syrup (alerid), group C- multivitamin syrup (zincovit) and group D- control (distilled water). The samples were then subjected to the immersion cycles in the syrups. Assessment of enamel surface microhardness was done using Vickers hardness tester at 7th day and 14th day. The pH and titrable acidity of the syrups were also assessed. One way analysis of variance (ANOVA) and post hoc tests were used for the statistical analysis.Results: Out of the test groups, group C showed the lowest pH of around 4.2 and exhibited the largest titrable acidity (22.8 ml) compared with 21 ml in group A and 15.5 ml in group B. At the end of 14th day, group A had microhardness of about 293.43.84±6.34, group B had 299.930±6.85, group C had 313.380±6.23 and group D had 334.190±5.51.Conclusions: All the pediatric liquid medications assessed in the study, meftal P, alerid and zincovit showed acidic pH, high titrable acidities and all the syrups showed loss of microhardness after exposure to the syrups for 14 days. Loss of microhardness was highest for meftal P followed by alerid and least for zincovit.

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The Impact of Pain Control on Invasive Clinical Procedure on Children with Leukemia

Blood ◽

10.1182/blood-2018-99-110088 ◽

2018 ◽

Vol 132 (Supplement 1) ◽

pp. 5827-5827

Author(s):

Jiayi WANG ◽

Yingyi He ◽

Zhimin Liang ◽

Tiezhen Ye ◽

Hui Zhang

Keyword(s):

Local Anesthesia ◽

Pain Control ◽

Adverse Reactions ◽

Low Dose ◽

Invasive Procedure ◽

Anesthesia Group ◽

Group A ◽

Group B ◽

The Impact ◽

Group D

Abstract Background: Palliative care is becoming more and more important for systemic cancer treatment in developed countries, while this remains infamous topic in developing countries, such as in China. Contemporary treatment strategies have greatly contributed to the improved outcome in childhood cancer patients, survivorship comes at the cost of developing some treatment-related health condition, such as pain-related depression, chronic pain etc. Thus, developing a well-tolerated pain control methods is of great importance within the cancer treatment. Objective: To evaluate the impact and outcome of different pain control applications on invasive procedure in children with leukemia, and record the adverse reactions. Methods: The enrollment of childhood leukemia patients in our hospital from November 2011 to November 2016 were divided into four groups, that is successively midazolam + local anesthesia (group A), midazolam + ketamine +local anesthesia (group B), midazolam + fentanyl + local anesthesia (group C), and fentanyl + propofol + local anesthesia (group D). The efficacy and adverse reactions were systemically recorded. The inter-group diffferences were calculated using x2 test. Results: No significancewas observed in age, gender, and disease distribution in these four groups by ANOVA ONEWAY analysis. The sedation outcome is more pronunced in group D than others. Also, the quality of procedural pain control in group D was the best (P<0.01). In terms of the analgesic effect, group B and D were better than that group A and C. There was significant difference in Hallucination was more easily detected in group B and C. Systemic recovery was delayed in group B other than group A, C, and D. Basing on the survey, we did found that the family members were more willing to accept pain control treatment for their sick kids under the safety assurance. The compliance was significantly improved in group D. Conclusion: Upon adequate auxiliary breathing preparation and rigorous monitor, propofol combined with low-dose fentanyl was the best sedative/analgesic option for pain control within leukemia patients receiving invasive procedure.The outcome of propofol combined with low-dose fentanyl wasvery safe, satisfactory and compliable. Up to now, this study is the first pain control study for invasive procedure in China mainland, it deserves being paid attention. Disclosures No relevant conflicts of interest to declare.

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Erectile dysfunction in patients taking psychotropic drugs and treated with phosphodiesterase-5 inhibitors

Archivio Italiano di Urologia e Andrologia ◽

10.4081/aiua.2018.1.44 ◽

2018 ◽

Vol 90 (1) ◽

pp. 44 ◽

Cited By ~ 3

Author(s):

Rossella Mazzilli ◽

Gloria Angeletti ◽

Soraya Olana ◽

Michele Delfino ◽

Virginia Zamponi ◽

...

Keyword(s):

Erectile Dysfunction ◽

Psychotropic Drugs ◽

Remission Rate ◽

Antidepressant Drugs ◽

Serum Testosterone ◽

Hormonal Profile ◽

Group A ◽

Group B ◽

The Impact ◽

Group D

Objectives: The aim of this study was to assess the prevalence of patients with Erectile Dysfunction (ED) receiving psychotropic drugs, the impact of these drugs on hormonal profile, and the efficacy of PDE5-i in these patients. Materials and methods: We recruited 1872 patients referring for ED to our Andrology Unit. Assessment included serum testosterone, gonadotropins, TSH, prolactin, and PSA, and the IIEF-5 questionnaire for ED diagnosis. Inclusion criteria were age 21-75 years and IIEF-5 total score ≤ 21; exclusion criteria included hypogonadism, diabetes mellitus, previous prostatectomy, other medication intake, and ED diagnosis prior to psychotropic drug treatment. Efficacy was rated with the IIEF-5 (remission: total score ≥ 22). Results: The prevalence of ED patients treated with psychotropic drugs since ≥ 3 months was 9.5% (178/1872), subdivided according to the drugs used into: Group A, 16 patients treated with atypical antipsychotics (9.0%); Group B, 55 patients with benzodiazepines (30.9%); Group C, 33 patients with antidepressant drugs (18.5%); and Group D, 74 patients with multiple psychotropic drugs (41.6%). Patients in Group A were significantly younger than other groups (p < 0.05). The hormonal profile presented only higher prolactin level in patients treated with antipsychotics, alone or in combination (p < 0.05). Overall, 146 patients received PDE5-i. Remission rate, after three months of treatment, was significantly higher in Group B compared to C and D groups (p < 0.05). Conclusions: A substantial portion of patients receiving psychotropic drugs show ED. Sexual performance in these patients benefits from PDE5-i. Age, effects of psychiatric disorders, psychotropic drugs, and PDE5-i treatment modality accounted for variability of response in this sample.

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In Vitro Effect of Drilling Speed on the Primary Stability of Narrow Diameter Implants with Varying Thread Designs Placed in Different Qualities of Simulated Bone

Materials ◽

10.3390/ma12081350 ◽

2019 ◽

Vol 12 (8) ◽

pp. 1350

Author(s):

Georgios E. Romanos ◽

Daniel J. Bastardi ◽

Rachel Moore ◽

Apoorv Kakar ◽

Yaro Herin ◽

...

Keyword(s):

In Vitro Study ◽

Primary Stability ◽

Drilling Speed ◽

Group A ◽

The One ◽

Group B ◽

Vitro Effect ◽

The Impact ◽

Narrow Diameter Implants

It is hypothesized that there is no statistically significant impact of drilling speed (DS) on the primary stability (PS) of narrow-diameter implants (NDIs) with varying thread designs placed in dense and soft simulated bone. The aim of this in vitro study was to evaluate the impact of DS on the PS of NDIs with varying thread designs placed in dense and soft simulated bone. Two hundred and forty osteotomies for placement of various implant macro-designs were divided into three groups (80 implants per group): Group A (NobelActive, 3.0/11.5 mm); Group B (Astra OsseoSpeed-EV, 3.0/11 mm); and Group C (Eztetic-Zimmer, 3.1/11.5 mm) implants. These implants were placed in artificial dense and soft simulated bone using DSs of 800 and 2000 revolutions per minute (RPM). Resonance frequency analysis (RFA) and implant stability quotient (ISQ) were assessed. Group comparisons were performed using the one-way analysis of variance with Tukey’s post hoc tests. Level of significance was set at P < 0.05. In groups A and B, there was no difference in the ISQ for NDIs inserted in dense bone at 800 and 2000 RPM. In Group C, ISQ was significantly higher for NDIs placed in dense bone at 800 PRM compared to 2000 RPM (P < 0.05). In Group A, ISQ values were significantly higher for NDIs inserted in soft bone at 2000 RPM as compared to those inserted at 800 RPM (P < 0.05). For NDIs, a lower drilling speed in dense artificial simulated bone and a higher drilling speed in soft artificial simulated bone is associated with high primary stability.

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The Effect of Varying Ferrule Modes on Fracture Resistance of Canines Restored with One-Piece Milled Zirconia Post and Core

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.624.98 ◽

2012 ◽

Vol 624 ◽

pp. 98-102

Author(s):

Yao Kun Zhang ◽

Long Quan Shao ◽

Ruo Yu Liu ◽

Lin Lin Wang ◽

Jun Ai ◽

...

Keyword(s):

Fracture Resistance ◽

In Vitro Study ◽

Significant Difference ◽

Zirconia Crowns ◽

Group A ◽

Post And Core ◽

Resistance Decrease ◽

Group B ◽

Group D

The aim of this invitro study was to evaluate the fracture resistance of endodontically treated canines restored with one-piece milled zirconia post and core in the varying ferrule modes. Fifty recently extracted human maxillary canines were endodontically treated and randomly divided into 5 groups of 10 specimens each. According to the defect degree of ferrule, intact ferrule was classified as group A and served as control, 2 mm ferrule height without buccal ferrule was classified as group B, 2 mm ferrule height without mesial and buccal ferrule was classified as group C, 2 mm ferrule height without mesial, buccal and lingual ferrule was classified as group D, no ferrule preparation was classified as group E. All of the teeth were restored with one-piece milled zirconia post and core, and zirconia crowns. The teeth were prepared to standardized specifications. The restored teeth were loaded to fracture at a 135° angle to their long axis, at a cross-head speed 0.5 mm/min, and the load (N) at failure was recorded. Statistical analysis was performed by SNK pairwise multiple comparisons (α=0.05). The mean fracture resistance of five groups as follows: 1019.30±139.01N for group A, 861.20±105.67N for group B, 833.70±100.56N for group C, 733.20±96.91N for group D, 698.00±99.90N for group E. The fracture resistance of restored teeth between group B and group C, group D and group E had no statistically significant difference(P>0.05). The fracture resistance of the rest pairwise group comparisons had statistically significant difference(P<0.05). Increasing the absence degree of ferrule, it was found that the fracture resistance decrease. The buccal and lingual ferrule were more important than mesial ferrule for enhanced fracture resistance. This in vitro study supports evidence that reserving the buccal and lingual ferrule is a key point to increase the fracture resistance of canines restored with one-piece milled zirconia post and core.

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Impacts of Mycoplasma gallisepticum Vaccine on Newcastle Disease Vaccination and Protection in Parent Stock Flocks

Bangladesh Journal of Microbiology ◽

10.3329/bjm.v24i1.1240 ◽

1970 ◽

Vol 24 (1) ◽

pp. 62-64

Author(s):

M Rayhan Faruque ◽

Jens P Christensen

Keyword(s):

Newcastle Disease ◽

Haemagglutination Inhibition ◽

Clinical Signs ◽

Mycoplasma Gallisepticum ◽

Post Mortem ◽

Group A ◽

Parent Stock ◽

Group B ◽

The Impact ◽

Group D

The present study reports on the impact of Mycoplasma gallisepticum (MG) vaccination on vaccine respond and subsequent protection against Newcastle disease (ND) in parent stock flocks of Department of Livestock Services (DLS) using MG killed vaccine and conventional ND vaccines. Birds were grouped into four groups, each consisted of 50 birds from the same flock. Group A birds were vaccinated with ND, group B with ND and MG, group C with MG, and group D birds were kept as unvaccinated control. The parameters studied included detection of ND antibody, MG seroprevalance, mortality (%), and cause of death. The sera of groups B and C were sero-positive after administration of MG vaccine. The haemagglutination-inhibition (HI) titres of group A were higher than group B from week 4 after administration of MG vaccine to the birds of group B. The mortality was very low; one bird of group C died at week 5 due to traumatic injury and another bird of group D died at week 2 due to infectious bronchitis virus (IBV). After challenge, birds of groups A and B showed no clinical signs and normal post mortem findings were found. Birds of groups C and D showed clinical signs from day 3 and different pathological lesions were found in post mortem. The MG vaccination did not improve other parameters. Therefore, inoculation of MG INAC vaccine is not justified and is too expensive at farm levels.Keywords: Mycoplasma gallisepticum (MG) vaccine, Newcastle disease (ND) vaccination, Protection, MortalityDOI: http://dx.doi.org/10.3329/bjm.v24i1.1240 Bangladesh J Microbiol, Volume 24, Number 1, June 2007, pp 62-64

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Assessing Fracture Resistance of Restored Premolars with Novel Composite Materials: An In Vitro Study

International Journal of Dentistry ◽

10.1155/2021/5512708 ◽

2021 ◽

Vol 2021 ◽

pp. 1-10

Author(s):

Zahraa Abdulaali Al-Ibraheemi ◽

Huda Abbas Abdullah ◽

Nada Abdlameer Jawad ◽

Julfikar Haider

Keyword(s):

Fracture Resistance ◽

Testing Machine ◽

In Vitro Study ◽

Vitro Study ◽

Resistance Testing ◽

Significant Difference ◽

Group A ◽

Group B ◽

Group D

During restorative treatment, premolars restored with resin filling materials using the conventional incremental-fill technique take longer restoration time and undermine the integrity of the tooth. The aim of this study was to assess fracture resistance of premolars restored by various types of novel bulk-fill composite resin materials. Forty-eight (n = 48) freshly extracted sound maxillary first premolars were used in this in vitro study. The teeth were divided into six groups, each having 8 specimens. Group A (positive control) was allocated for the intact teeth. For specimens in Groups B to F, a large cavity (Class-II MOD) was prepared with a standardized dimension of cavity (3 mm depth on the pulpal floor, 4 mm at the gingival seat, and 3 mm cavity width). Group B represented prepared teeth without any restoration. Group C, Group D, Group E, and Group F were restored with Tetric EvoCeram® incremental-fill (conventional), Beautifil bulk-fill, Filtek posterior bulk-fill, and SonicFill 2 bulk-fill restorative materials, respectively. All samples were finished and polished with an enhanced finishing kit and stored in distilled water for a month before the fracture resistance testing. All the samples were exposed to the axial loading (the speed of crosshead was 1 mm/min) in a computer-controlled universal testing machine (LARYEE, China) via a steel bar (6 mm in diameter) and the maximum applied force in Newton was recorded as the fracture resistance. One-way analysis of variance (SPSS 21) was used to compare the fracture resistance within the groups, and Tukey’s post hoc test was used to determine the difference between the groups. The lowest value of fracture resistance was recorded for Group B, and the highest value was recorded for Group A followed by the values of Group D, Group C, Group F, and Group E. One-way ANOVA revealed a statistically significant difference between the groups ( P < 0.05 ). Nonsignificant difference was found between the premolars restored by bulk-fill and conventional composites. Among the bulk-fill restored specimens, Beautifil restorative demonstrated significantly higher fracture resistance in comparison with the other two bulk-fill restored specimen groups (SonicFill 2 and Filtek). Bulk-fill composite such as Beautifil could be an alternative option to conventional incremental-fill composite for premolar restoration.

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Zeolite as a Bone Bio-Modifier Carrier: An In-Vitro Study

Journal of Molecular Biology Research ◽

10.5539/jmbr.v9n1p126 ◽

2019 ◽

Vol 9 (1) ◽

pp. 126

Author(s):

Mobina Mousavi ◽

Azadeh Esmaeil Nejad ◽

Erfan Shamsoddin ◽

Mohammad Mehdi Golabgiran ◽

Behzad Houshmand

Keyword(s):

In Vitro Study ◽

Positive Control ◽

Negative Control ◽

Control Group ◽

Alizarin Red ◽

Group A ◽

Group B ◽

And Function ◽

Group D

Background: Zeolite is a microporous aluminosilicate compound which has been successfully used in tissue engineering. The effects of Zeolite on the morphology and functions of pre-osteoblastic MG-63 cells as new bone enhancer material is still unclear. Methods: In this vitro experimental study, MTT and Alizarin red staining test were performed on six groups of MG-63 cells which differed in Zeolite (Z) concentration and the presence or absence of Alloplast extract (A). Group A: 0.1μg/mL Z+A, Group B: 0.1μg/mL Z without A, Group C: 0.2μg/mL Z+A, Group D: 0.2μg/mL Z without A, Group E: 0.3μg/mL Z+A, Group F: 0.3μg/mL Z without A. There were also three control groups as positive control, negative control, and Alloplast control based on each related test. The data were analyzed by SPSS 20 via one-way ANOVA and Welch test. (P<0.05). Results: At 24 hours, results showed that solutions with 0.1μg/mL, 0.2μg/mL, and 0.3μg/mL Zeolite with or without Alloplast had significantly higher proliferation rates than positive control (distilled water) groups without Alloplast (p<0.001). At 72hours time point, the results showed significantly higher proliferation rates in the solutions with 0.1μg/mL, 0.2μg/mL, and 0.3μg/mL Zeolite with or without Alloplast compared to the positive control group without Alloplast (p<0.001). Conclusions: Zeolite can increase proliferation of MG-63 cells without presence of Alloplast; It seems that combination of Zeolite with Alloplast maybe enhancing proliferation and function of MG-63 cells.

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