scholarly journals Immuno-histopathologic evaluation of mineralized plasmatic matrix in the management of horizontal ridge defects in a canine model (a split-mouth comparative study)

Odontology ◽  
2022 ◽  
Author(s):  
Souzy Kamal Anwar ◽  
Hend Mohamed Abdel Hamid

AbstractOur research aimed to investigate the effect of combining biphasic calcium phosphate (BCP) alloplast with mineralized plasmatic matrix (MPM) as compared with platelet-rich fibrin (PRF) on the quality and quantity of bone formation and maturation at surgically created horizontal critical-sized ridge defects (HRDs) in a canine model. We used a split-mouth design using the third and fourth mandibular premolars of the mongrel dogs. Twelve defects on the left side (experimental group, I) were managed with MPM composite mixed with BCP alloplast, MPM compact layer. On the right side (control group, II), another 12 defects were managed with PRF mixed with BCP alloplast, followed by the application of PRF compact strips. Finally, both were covered by a collagen membrane. Dogs were euthanized at 4, 8, and 12 weeks, and the studied defects were processed to evaluate treatment outcome, including mean percentage of bone surface area, collagen percentage, and osteopontin (OPN) immunoreaction. Our results revealed that the mean percentage of bone surface area was significantly increased in the experimental group treated with MPM at all time intervals as compared with the PRF group. Decreased collagen percentage and increased OPN immunoreactivity showed significant results in the MPM group as compared with PRF at 4 and 8 weeks postoperatively, respectively. In conclusion, MPM accelerates the formation of superior new bone quality when used in the treatment of HRDs.

1977 ◽  
Vol 45 (3) ◽  
pp. 715-720 ◽  
Author(s):  
Estelle R. Friedman

22 preschool children were either trained (experimental group) or not trained (control group) to indicate a 15-sec. time interval by the method of production. The accuracy was significantly improved by brief training. The children were generally accurate whether attending to the stopwatch at the right or left ear or given sound- or light-filled intervals. Neither age nor sex differences were found. These results demonstrate the possibility of conducting research on time-estimation at an early age if the procedures are relatively short and of interest to the young child. Because most of the children were unable to count as a guide to their judgments, the inner neural clock theory is supported.


Author(s):  
Aysegul Altunkeser ◽  
Zeynep Ozturk Inal ◽  
Nahide Baran

Background: Shear wave electrography (SWE) is a novel non-invasive imaging technique which demonstrate tissue elasticity. Recent research evaluating the elasticity properties of normal and pathological tissues emphasize the diagnostic importance of this technique. Aims: Polycystic ovarian syndrome (PCOS), which is characterized by menstrual irregularity, hyperandrogenism, and polycystic overgrowth, may cause infertility. The aim of this study was to evaluate the elasticity of ovaries in patients with PCOS using SWE. Methods: 66 patients diagnosed with PCOS according to the Rotterdam criteria (PCOS = group I) and 72 patients with non-PCOS (Control = group II), were included in the study. Demographic and clinical characteristics of the participants were recorded. Ovarian elasticity was assessed in all patients with SWE, and speed values were obtained from the ovaries. The elasticity of the ovaries was compared between the two groups. Results: While there were statistically significant differences between the groups in body mass index (BMI), right and left ovarian volumes, luteinizing hormone and testosterone levels (p<0.05), no significant differences were found between groups I and II in the velocity (for the right ovary 3.89±1.81 vs. 2.93±0.72, p=0.301; for the left ovary 2.88±0.65 vs. 2.95±0.80, p=0.577) and elastography (for the right ovary 36.62±17.78 vs. 36.79±14.32, p=0.3952; for the left ovary 36.56±14.15 vs. 36.26±15.10, p=0.903) values, respectively. Conclusion: We could not obtain different velocity and elastography values from the ovaries of the patients with PCOS using SWE. Therefore, further large-scale studies are needed to elucidate this issue.


2021 ◽  
Vol 7 (5) ◽  
pp. 3445-3451
Author(s):  
Chen Yake

Objectives: In this paper, the effects of tobacco on aerobic exercise ability and physical fitness recovery of college students were studied. Methods: University group sports intervention form: traditional characteristic project (basketball) + Taiji soft ball (R&D intervention project). Exercise time: 3 times/week; Activity duration: 30min; Activity intensity: the heart rate is controlled at 120-140 beats/min. All the college students in the experimental group are students who have never smoked, and the college students in the control group are students who have smoked for more than two years. The other conditions are the same. Results: The exercise time and endurance of experimental groups I and II were significantly lower than those of the control group, and the cardiopulmonary function was significantly lower than that of the control group. The indexes of experimental group II changed significantly compared with experimental group I, and the difference was statistically significant. Conclusion: Cigarette smoke can significantly reduce the aerobic exercise ability and anti fatigue ability. The longer the smoking time, the more serious the adverse effects. Therefore, tobacco smoke and nicotine will damage college students’ aerobic exercise ability and have a negative impact on the recovery of physical fitness after exercise.


2016 ◽  
Vol 4 (1) ◽  
Author(s):  
Sujit Dhanraj Kumavat

The objective of the present study was to find out the role of emotion in effective teaching of junior college students. The sample for the present research selected from the grantable junior college in Ahmednagar. For the research 11th class 90 students of Commerce faculty was selected. Among them 30 student selected for the positive emotion teaching group (Experimental group I). 30 students selected for the negative emotion (Experimental group II). And 30 students were selected for the neutral group (Control group III). The age range of the students were 17 to 18 years (M=35.00 SD=7.38). In the research Simple random method was used. The first hypothesis of the research was positive emotional teaching method high in English retention than negative and neutral teaching methods. Tolls 11th class English syllabus selected for the study. Result first result was showed that positive emotional teaching had significantly high English retention than the negative and neutral emotional teaching methods.


2017 ◽  
Vol 9 ◽  
pp. 117906521772090 ◽  
Author(s):  
Noppon Taksaudom ◽  
Metus Ketwong ◽  
Nirush Lertprasertsuke ◽  
Aphisek Kongkaew

Objective: The operating procedure of a resternotomy in open-heart surgery is a complicated procedure with potentially problematic outcomes partly due to potential adhesions in the pericardial cavity and retrosternal space. Use of a collagen membrane has shown encouraging results in adhesion prevention in several regions of the body. This study was designed to evaluate the effectiveness of the use of this collagen membrane in the prevention of pericardial adhesions. Materials and methods: A total of 12 pigs were divided randomly into 2 groups: an experimental group in which collagen membranes were used and a control group. After sternotomy and an anterior pericardiectomy, the epicardial surface was exposed to room air and irrigated with saline, and an epicardial abrasion was performed using a sponge. The pericardial defect was repaired using a collagen membrane in the experimental group or left uncovered in the control group. After 8 to 12 weeks, the pigs were killed, and a resternotomy was performed by a single-blinded surgeon enabling the evaluation of adhesions. The heart was then removed and sent for microscopic assessment conducted by a single-blinded pathologist. Results: The resternotomy operations performed using a collagen membrane demonstrated a nonstatistically significant trend of fewer macroscopic and microscopic adhesions in all regions ( P > .05), particularly in the retrosternal and defect regions. Conclusions: This study showed nonstatistically significant differences between the outcomes in the collagen membrane group and the control group in both macroscopic and microscopic adhesion prevention. Due to the many limitations in animal study design, further studies in human models will be needed before the true value of this procedure can be evaluated.


2021 ◽  
Vol 9 (3) ◽  
pp. 87-90
Author(s):  
A. Jyoth ◽  

The effect of fiber rich product on child hood obesity studied with 60 sample which were collected randomly among 10-12 years and categorized into 2 groups i.e, experimental group and control group. Experimental group further categorized into three groups i.e, supplementation with exercise (n=15), only supplementation group (n=15), only exercise group (n=15) and control group consists of (n=15).Anthropometric, and diet survey conducted as parameters. A fiber rich product was prepared and supplemented for 2 months to the selected subjects and it consists of whole Bengal gram, whole green gram, green peas, barley and jaggery. Positive results were obtained in three experimental groups. Significant decrease observed inweight, and BMI, Total cholesterol, Triglycerides, LDL, VLDL significant increase observed in HDL in group I II and III. The results were (51.60-48.26kg, 24.7-23.1, 195.2-152.3 mg/dl, 168.2-145.0 mg/dl, 52.2-54.13 mg/dl, 109.4- 69.4mg/dl, 33.6-28.7mg/dl) in group I, In group II the results are (50.3-49.86kg, 23.7-23.4, 168.6-161.0mg/dl, 145.4-129.6mg/dl, 44.2-45.2 mg/dl, 95.3-90.0mg/dl, 29.1-28.3mg/dl).In group III the tesults aere (50.7-49.6kg, 24.5-23.9, 143.2-139.3mg/dl, 139-134.5mg/dl, 38.2-38.7mg/dl 76.8-74.1 mg/dl, 25.6-28.1mg/dl) .From the results it was clear that when compared to group II and III group I has shown better results.


2019 ◽  
pp. 1-2
Author(s):  
S. Neelavathy ◽  
R. P. Balasubramania

Emotion is the ability of a person to express the state of mind which he is, but when a person is mentally, physically, emotionally, and spiritually unstable results in a psychological change and helpless on situations. The purpose of the study was to nd out Effect of SKY yoga and pranayama on emotion among college girls .To achieve the purpose of the study 45 College girls were selected randomly from Coimbatore as the subjects. The subject's age ranged from 18 to 21 years. . The selected subjects were divided into 3 groups. Experimental Group I under went on sky yoga only & Experimental Group II went on pranayama only for 50 minutes per day, six days a week for 12 weeks. The control group was not given any practice. The pre-test and post-test were conducted before and after the training for all three groups. The data collected from the groups before and after the training period were statistically analysed by using Analysis of Co-Variance (ANACOVA) to determine the signicant difference and tested at 0.05 level of signicance. The result of the study showed that there was signicant improvement in the emotion of the Experimental Groups I, II subjects than the Controlled group. Through the SKY yoga and Pranayama Emotion got controlled. The conclusion was that SKY yoga controlled emotions and got reduced the psychological effects depression and stress etc. among college girls.


2022 ◽  
Author(s):  
Makaeva Ayna Maratovna ◽  
Sizova Elena Anatolevna ◽  
Atlanderova Ksenya Nikolaevna

Determining which forms of mineral feed additives can increase farm animal productivity is a key area of research. This study assessed the mineral composition of ruminal fluid and the effectiveness of calcium and phosphorus used by animals after the introduction of finely dispersed particles (FDP) of SiO2 (group I) and FeCo (group II) with a hydrodynamic radius of 109.6 ± 16.6 and 265 ± 25 nm, respectively. The deposition and use of calcium and phosphorus in the body of the experimental animals exceeded the control values. In group I, 30.8% more calcium was deposited (p ≥ 0.05), and in group II, the value was 30.3% (p ≥ 0.01). In the experimental groups, the calcium utilization rate was 27.3% higher in group I (p ≥ 0.05), and 28.2% higher in group II (p ≥ 0.01) compared to in the control. Phosphorus deposition was 34% higher (p ≤ 0.01) in experimental group I and 6% higher in experimental group II, compared with the control. Group I had a high utilization rate of phosphorus from the feed (with a 29% difference compared to the control). Comparison of the experimental groups revealed that the introduction of SiO2 FDP promoted an increase in the concentration of silicon, phosphorus, and calcium in the ruminal fluid. The introduction of FeCo FDP was accompanied by a decrease in the concentration of iron and cobalt in the ruminal fluid. Thus, the use of feed additive in finely dispersed form in the diet of animals was accompanied by an increase in the use of calcium and phosphorus by the animal’s body, which is advisable when intensifying milk and meat productivity. The obtained results require further research. Keywords: finely dispersed forms of microelements, ruminants, calcium and phosphorus exchange, feeding


2019 ◽  
Vol 3 (2) ◽  

Objective: To search for a dental pulp preservative method in experimental pulpitis. Methods: 20 rabbits with experimental pulpitis were selected for this study; Teeth were randomly assigned to 2 groups (experimental and control groups) based on the final irrigation methods. In experimental group (double-pinhole drainage), the two pinholes were drilled in middle 1/3 dental cervix of buccal labial surface of tooth; the pinholes were inserted into infant transfusion needles then the two syringes were contacted with them, one for suck, another for irrigation. In control group, pinhole was sealed. Rabbits were executed in 1, 3, 5, 7 day. The inflammation in pulp chamber was assessed after 1, 3, 5, and 7 days. Results: At the 1, 5 day time intervals, control group reported more inflammation than experimental group (P < .05). There was no significant difference between two groups at the other time intervals (P > .05), and in all groups the inflammation decreased over time. Conclusion: Dental pulp can be preserved by double-pinhole drainage efficiently.


2017 ◽  
Vol 19 (74) ◽  
pp. 123-126
Author(s):  
N. B. Seba ◽  
M. A. Khomenko

In this paper present the results of research of influence of the preparation «Kvatronan-Se» and carboxylates of Se, Cu, Mn, Cr, Ge in different combinations on haematological parameters of blood of experimental animals. Study was carried out on the basis of PC Haleks-Agro. It is located in the village Gul'sk of Novograd Volynskiy district of Zhytomyr region. In the farm to bred of Simmental cows. For the experiment was formed four groups. We took into account age, live weight of 650–700 kg and the average milk yield 5000–6000 kg. Animals is located in identical conditions of feeding and maintenance. Research experiment was carried out on animals couples counterparts.  Preparations introduced animals three times at 10–12 days after insemination. The cows first experimental group were injected complex nanokarboksylativ Ge, Cu, Mn and Cr, second – drug Kvatronan–Se and animals third experimental group was administered a complex composed of Se, Cu, Mn, Cr. On 13 day after insemination in experimental animals were taken blood from tail vein and examined the contents of hematological parameters. Established that injection nanokarboksylativ enhance the fertility of cows in the first and third group, the figure rose to 20% in the second by 40% compared with the control. Research hematological parameters blood  animals shows that after entering content drugs of blood cells had minor changes but remained within the physiological norm. The results show that in  concentration monocyte the second group  was at 5.53% (P > 0.01) higher compared to the control group and 2.3% compared to the first and third. The content of lymphocytes in this group decreased by 26.3% (P > 0.05), 22% and 16% relative to the control, the first and third groups. Also, it should be noted that the hemoglobin in the experimental groups decreased in group I by 7.9% in the II – 3.9% and III by 7.3% compared with the control group. Also, these groups distinguished downward trend eosinophils 1.8%, 1.5%, 2.05%. Then, as the number of segment-nuclear neutrophils contrast, in the first group increased by 18.2% in the second and third at 16.9% comparatively control. The number of monocytes in the second group doslfidniy the suspicion was higher by 66.3% and 0.3% higher than the physiological norm – it may indicate a high immune response.


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