scholarly journals Comparative Study of the Bioactivity of Two Bioceramic Materials

2018 ◽  
Vol 21 (2) ◽  
pp. 73-81
Author(s):  
Margarita Trujillo-Hernández ◽  
Rebeca E. Flores-Ventura ◽  
Angélica Suárez-Porras MSc ◽  
Leandro García-González PhD ◽  
Julián Hernández-Torres PhD ◽  
...  

Calcium silicate-based materials have been shown to be bioactive due to their ability to produce biologically compatible carbonated apatite. The objective of this study was to analyze the bioactivity of Biodentine ™ and MTA Repair HP® in contact with human dentine discs, which were sealed and divided randomly to form four groups: group 1 Biodentine™, group 2 MTA Repair HP®, positive control group MTA Angelus® and negative control group IRM®, which were incubated in PBS solution for 10 days, for a subsequent analysis by means of MEB-EDS and Raman spectroscopy. The three calcium-based materials analyzed in this study proved to be bioactive because upon contact with a phosphate-based solution they were triggered at the onset of amorphous calcium phosphate, as the precursor during the formation of carbonated apatite.

2019 ◽  
Vol 12 (02) ◽  
Author(s):  
Husnul Khatimah ◽  
Saifuddin Sirajuddin ◽  
Zainal Zainal

ABSTRACT In diabetics there is usually an increase in free fatty acids in the blood and increases the concentration of cholecerols and triglycerides, this condition is called diabetes dyshidemia. This study aimed to find out at the effect of bran milk treatment on the changes of the concetration of cholesterol and triglycerides in diabetetic white wistar rats. Conducted on May 15 until 15 August 2018. Experimental research pre-post test with control design. Subjects of twenty wistar white rats were made diabetic by injecting alloxan 140mg / kg. After being declared diabetic, the rats were divided into four groups, namely group 1 (negative control), group 2 (positive control), group 3 (bran milk 0.54g / 200 gr) and group 4 (bran milk 1.08g / 200gr). The intervention was given for fourteen days. The data analysis used the paired T-test to test the subject before and afterthe treatment and the One-Way ANOVA test was used to test the difference between the groups. The research results indicated that  the treatment with bran milk there were no significant differences in cholesterol and triglyceride concentrations in the four groups. But when viewed from changes before and after the intervention showed that group 4 (bran milk 1.08g / 200gr) decreased cholesterol concentration and in group 3 (bran milk 0.54g / 200gr) a decrease in triglycerides was better than group 1 (control negative) and group 2 (positive control). It was concluded that the administration of bran milk can reduce the concentration of cholesterol and triglycerides in wistar diabetic white rats.Keywords : Bran milk, Cholesterol, Triglycerides, Rats, Diabetic


2019 ◽  
Vol 20 (1) ◽  
pp. 12-18
Author(s):  
Sameh El-Nabtity

The present study aimed to investigate the prophylactic effect of Cymbopogon proximus and Alhagi maurorum on Sulfadimidine induced urolithiasis in rabbits . Thirty New Zealand male rabbits were allocated into six equal groups (each of five): Group (1) was used as a negative control. Group(2) were administered sulfadimidine (200mg/kg) by intramuscular injection.Groups(3) and (4) were administered sulfadimidine(200mg/kg) by intramuscular injection and 330mg/kg of Cymbopogon proximus alcoholic and aqueous extracts respectively orally.Groups(5) and (6) were administered sulfadimidine(200mg/kg) by intramuscular injection and 400mg/kg of Alhagi maurorum alcoholic and aqueous extracts respectively orally. The period of experiment was 10 days. Blood and urine samples were collected from rabbits on the 10th day. The results recorded a significant decrease in serum creatinine, urea, uric acid and crystalluria in Cymbopogon proximus and Alhagi maurorum groups compared to sulfadimidine treated group.We conclude that Cymbopogon proximus and Alhagi maurorum have a nephroprotective and antiurolithiatic effects against sulfadimidine induced crystalluria.


2015 ◽  
Vol 2015 ◽  
pp. 1-5 ◽  
Author(s):  
Berkan Celikten ◽  
Ceren Feriha Uzuntas ◽  
Kamran Gulsahi

The aim of this study was to compare the vertical fracture resistance of roots obturated with different root canal filling materials and sealers. Crowns of 55 extracted mandibular premolar teeth were removed to provide root lengths of 13 mm. Five roots were saved as negative control group (canals unprepared and unfilled). Fifty root canals were instrumented and then five roots were saved as positive control group (canals prepared but unfilled). The remaining 45 roots were randomly divided into three experimental groups (n=15root/group) and obturated with the following procedures: in group 1, glass ionomer-based sealer and cone (ActiV GP obturation system); in group 2, bioceramic sealer and cone (EndoSequence BC obturation system); and in group 3, roots were filled with bioceramic sealer and cone (Smartpaste bio obturation system). All specimens were tested in a universal testing machine for measuring fracture resistance. For each root, the force at the time of fracture was recorded in Newtons. The statistical analysis was performed by using Kruskal-Wallis and post hoc test. There were no significant differences between the three experimental groups. The fracture values of three experimental and negative control groups were significantly higher than the positive control group. Within the limitations of this study, all materials increased the fracture resistance of instrumented roots.


2008 ◽  
Vol 21 (03) ◽  
pp. 267-279 ◽  
Author(s):  
G. Dravelli ◽  
L. Vezzoni ◽  
M. De Lorenzi ◽  
A. Corbari ◽  
A. Cirla ◽  
...  

Summary Objectives: To evaluate the efficacy of juvenile pubic symphysiodesis (JPS) in a clinical setting for the early treatment of canine hip dysplasia (CHD), and to identify its indications and contraindications. Methods: The final degree of CHD using the FCI (Fédération Cynologique Internationale) CHD classification in 5 Grades (A, B, C, D, E) was assessed at skeletal maturity in two homogeneous groups of dogs assessed at the age of 14 to 22 weeks and selected according to their susceptibility to CHD; one group was treated with JPS and one group was conservatively managed. Two hundred seventeen puppies completed the study; 81 were treated with JPS (group 1) and 76 were conservatively managed (group 2). A third group of 60 puppies with normal hips was followed as a negative control group. Results: In group 1, 43.2% of the puppies had regression or a lack of progression of the disease in the final evaluation (Grade A & B), 25.9% had mild CHD (Grade C) and 30.9% had moderate and severe CHD (Grade D & E). In group 2, 23.6% of the puppies did not show any development of the disease (Grade A & B), 21.1% had mild CHD (Grade C) and 55.3% developed moderate to severe CHD (Grade D & E). Further investigation was done by comparing the severity of early signs of susceptibility to CHD with the final FCI Grades at adulthood in both groups. Clinical significance: The JPS procedure increased the odds of arresting or limiting the progression of CHD in mild to moderate grades of CHD, while it was less effective or ineffective in more severe forms.


2018 ◽  
Vol 25 (10) ◽  
pp. 1587-1595
Author(s):  
Umer Aleem ◽  
Rahman Shah ◽  
Noor Khan ◽  
M. Suliman

Objectives: Hepatotoxicity is the most complicated side effect of isoniazid (inh)in the patient treated for tuberculosis. In causes 8–30% hepatotoxicity in the developing world.Metabolism of INH produces a metabolite, called acetyl isoniazid. In this study hepatoprotectiveeffect of honey, in isoniazid induced animal model was assessed. Study Design: Randomizedcontrol trial. Setting: Saidu Medical College, Saidu Sharif Swat, KP. Period: October ToDecember 2017. Material and Methods: 40 healthy male rabbits were assigned randomly tothe group i, ii, iii and iv by using lottery method. Ten animals were grouped each row. Theisoniazid-induced hepatotoxic model was created by giving 50 mg inh/kg orally on daily basisfor eleven days. Group i was taken as negative control group ii as a positive control. Group iii andiv were experimental groups treated with 50 mg /kg/day and 100 mg /kg/day buckwheat honeyrespectively for eleven days. SPSS Version 16 software was used, mean, s.d. were determinedin all the groups. Values of serum bilirubin, sgpt, and alkaline phosphatase were comparedwith each other using pairt-test. Results: SGPT, Serum bilirubin, and alkaline phosphatasewere obtained in all the animals. Comparing group 1 negative control with group 2, 3 and 4shows statistical significance, (p=0.00). Comparing group 2 positive control with 3 and 4 showsstatistical significance, (p=0.00). Further comparing group 3 with group 4 also shows statisticalsignificance (p=0.00). Conclusion: From the above finding, it has been revealed that honeyhas got a protective effect in regressing hepatitis that has been induced in rabbit’s model byhigh doses of isoniazid. Related studies performed in which different chemicals and drugs havebeen tried for their protective role in isoniazid induced hepatitis also shows a similar type ofresults.


2020 ◽  
Vol 151 ◽  
pp. 01066
Author(s):  
Nuzul Asmilia ◽  
Amalia Sutriana ◽  
Dwinna Aliza ◽  
Nurfadilla Sudril

The purpose of this study was to determine the effect of the ethanol extract of malacca leaves (Phyllanthus emblica) to reduce carrageenan-induced edema in mice. This study used 25 mice which were divided into 5 groups with 5 mice per group. All the mice were induced inflammation using carrageenan at a dose of 1%. Mice in group 1 were not given piroxicam and malacca leaves extract. Mice in group 2 were treated with 20 mg of piroxicam suspension. Mice in groups 3, 4, and 5 were given ethanol extract of malacca leaves with doses of 100 mg/kg bb, 200 mg/kg bb, and 300 mg/kg bb, respectively. Edema volume measurements were performed on 5th day by collecting exudates using a syringe. Data were analyzed using one-way analysis of variance and continued with the Duncan test. The result showed that the average of edema volume in the negative control group was 0.09 ± 0.02 mL, while in the positive control group was 0.05 ± 0.03 mL. The average edema volume in groups 3, 4, dan 5 were 0.07 ± 0.01 mL, 0.06 ± 0.02 mL dan 0.07 ± 0.01 mL, respectively. It is concluded that the ethanol extract of malacca leaves (Phyllanthus emblica) can reduce the carrageenan-induced edema in male mice.


Metabolites ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 90
Author(s):  
Lijia Cheng ◽  
Ahmad Taha Khalaf ◽  
Tianchang Lin ◽  
Ling Ran ◽  
Zheng Shi ◽  
...  

To investigate the osteoinductive mechanism triggered by hydroxyapatite/β-tricalcium phosphate (HA/β-TCP) biomaterials in mice which keep exercising. Methods: The HA/β-TCP biomaterials were implanted in the muscle of bilateral thighs (non-osseous sites) of eighty Balb/C mice. All animals were then randomly divided into 4 groups (n = 20). In group 1 (negative control group), the mice were fed routinely. In group 2 (running group), all mice were put on a treadmill which was set to a 60-degree incline. The mice ran 20 min thrice each day. A 5-minute break was included in the routine from day three onwards. In group 3 (weight-bearing group), all mice underwent weight-bearing running. The mice in this group performed the same routine as group 2 while carrying 5 g rubber weights. In group 4 (positive control group), dexamethasone was injected in the implanted sites of the biomaterials from the day of the operation. All mice were injected once per week and received a total of 8 injections. One and eight weeks after surgery, the blood serum was collected to detect inflammatory and immunological factors by ELISA. In addition to this, biomaterial specimens were obtained to observe inflammatory and osteogenic levels via histological staining and to facilitate analysis of the osteogenic mechanism by Western Blot. Results: The inflammation indexes caused by surgery were alleviated through running or weight-bearing running: The tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) levels were significantly reduced in groups 2 and 3 at week 8. Exercise also enhanced the secretion of interferon-γ (IFN-γ) in mice; this can strengthen their immunity. The new bone tissues were observed in all groups; however, the area percentage of new bone tissues and the number of osteoblasts were highest in the weight-bearing group. Furthermore, the key proteins of wingless/integrated (Wnt) signaling pathway, Wnt1, Wnt3a, and β-catenin, were up-regulated during osteoinduction. This up-regulation activated runt-related transcription factor-2 (Runx2), increased the expression of osteopontin (OPN) and osteocalcin (OCN). Conclusion: Weight-bearing exercise can promote the bone and bone marrow formation through the Wnt signaling pathway: Observations documented here suggest that the proper exercise is beneficial to the recovery of bone damage.


Author(s):  
D. Muhammed ◽  
E. O. Dada ◽  
F. O. Iyaji ◽  
O. J. Abraham ◽  
N. A. Chijioke

The leaf, stem and bark of Eucalyptus citriodora are combined for use in the treatment of malaria in Anyigba, North Central, Nigeria. However, no scientific investigations have been carried out to know the effect of this plant on biochemical parameters of experimental mice. Thus, this study evaluated the biochemical parameters of mice infected with Plasmodium berghei after the administration of ethanolic leaf extract of E citriodora. Twenty-four (24) mice of body weights between 18-25 g were grouped into six groups. Group 1, infected but not treated (negative control), group 2, infected and administered with 0.2 mg/kg of chloroquine (positive control), group 3, not infected, but administered with 0.2 ml of normal saline (normal control), while the remaining three (3) groups were infected and treated with 200, 400 and 800 mg/kg body weight of the extract respectfully. The pack cell volume (PCV) was assessed before and after infection and treatment using standard procedure. The mice were sacrificed on the sixth day and blood samples were collected for biochemical analysis using standard methods. The PCV in mice of all groups decrease significantly (p<0.05), except group 3 (normal control) that increased. The alanine transaminase (ALT), aspartate transaminase (AST), total bilirubin level was higher in negative control (group 1) than in all other groups studied, but it was higher in the group treated with 200 mg/kg bd wt of the extract than in the positive control and the groups treated with 400 and 800 mg/kg body weight of the extract. A similar trend was observed in the levels of cholesterol, triglycerides, high density lipolipid (HDL) and low density lipolipid (LDL). The level of creatinine, blood urea and nitrogen were observed to be low in groups 1 and 2, compared to other groups. This study revealed that E. citriodora ethanolic leaf extract does not exact toxic effect on the internal organs like liver, kidney and heart.


2021 ◽  
Vol 16 (1) ◽  
pp. 1652-1657
Author(s):  
Ani Kristiyani

Apium graviolens L. is a medicinal plant that is useful for treating gout. Flavonoids are components of chemical compounds found in celery because they can work as antioxidants and inhibit the action of the xanthine oxidase enzyme to form uric acid. This study aims to determine the effect of giving celery herb powder on the blood serum uric acid levels of hyperuricemia male leghorn chickens. This study used twenty-five male leghorn chickens which were randomly divided into 5 groups. All groups were made hyperuricemia by being given 100% chicken liver juice 5 mL/l kg BW once a day orally during treatment. Group 1 was given 0.5% CMC suspension solution as a negative control group. Group 2 was treated with allopurinol 14 mg/1.5 kg BW in CMC 0.5% as a positive control. Groups 3, 4, 5 received infusion of celery herb powder in the order of doses (0.6 g/1.5 kg BW), (1.2 g/1.5 kg BW), (1.8 g/1.5 kg BW). Examination of uric acid levels was carried out on days 0, 4, 8, 12. The results showed that steeping celery could reduce uric acid levels in proportion to the dose. The greater the dose given, the greater the decrease in uric acid levels. The dose of celery herb group 3 (1.8 g/1.5 kg BW) was the most effective doses because it had the same value as the positive control.


2018 ◽  
Vol 2018 ◽  
pp. 1-7
Author(s):  
Amnah M. A. Alsuhaibani ◽  
Amal N. Al-Kuraieef

This research investigated the chemical analysis and sensory evaluation of low-calorie formulated pumpkin jams after storage for six months and the effects of the consumption of low-calorie jams on diabetic rats. Pumpkin jam with sucrose, fructose, stevia, and aspartame sweeteners and soybean was prepared and stored at 10°C for six months. Rats were divided into group 1 (negative control), group 2 (positive diabetic groups), and groups 3, 4, and 5 (diabetic groups treated with 10% sucrose, fructose, and stevia soybean jam, respectively). The results indicated that the contents of protein, fat, ash, and fibre were increased in the low-calorie formulated pumpkin jams. The highest sensory scores were recorded for sucrose and fructose soybean jams and then for stevia soybean jam, while the aspartame soybean jam showed significantly lower scores after storage for 3 and 6 months. Rat groups 4 and 5 showed significant decreases in the glucose level, and liver function enzymes activity showed significant increases in insulin and glycogen levels compared to group 2. Conclusion. Low-calorie pumpkin jams with soybean can be stored for 3 months at 10°C without any change. Stevia pumpkin jam with soybean has antidiabetic effects.


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