scholarly journals NI-2 Use of neurite orientation dispersion and density imaging(NODDI)for early distinction between infiltrating tumor and vasogenic edema in non-enhancing lesions with glioblastoma patients

2021 ◽  
Vol 3 (Supplement_6) ◽  
pp. vi18-vi18
Author(s):  
Yoshiko Okita ◽  
Koji Takano ◽  
Soichiro Tateishi ◽  
Motohisa Hayashi ◽  
Mio Sakai ◽  
...  
Keyword(s):  
Roc Curve ◽  
Vasogenic Edema ◽  
Multiple Logistic Regression Analysis ◽  
Principal Component ◽  
Negative Control Group ◽  
Negative Control ◽  
Control Group ◽  
Roc Curve Analysis ◽  
Significant Difference ◽  
Brain Microstructure

Abstract Background: Glioblastoma is a highly infiltrative tumor. In the non-enhancing T2-weighted hyperintense area, differentiating between non-enhancing tumors (NETs) and vasogenic edema is challenging. Neurite orientation dispersion and density imaging (NODDI) is a new diffusion MRI technique that reveals the inhomogeneity of the brain microstructure. The aim of this study is to differentiate between NETs and edema in glioblastomas using NODDI. Methods: Data were collected from 20 patients with glioblastoma as well as three patients with metastasis and two with meningioma (control), who underwent MRI as part of pre-surgical examination. The MRI data included T2- and T1-weighted contrast-enhanced images and NODDI images. Three neurosurgeons manually placed the volume of interest (VOI) on the NETs and edema based on the previous reports. ICVF, ODI, ISOVF, FA, and ADC were calculated for each VOI. Results: Fifteen and 13 VOIs were placed on NETs and edema, respectively. Each parameter was measured and the unpaired t-test revealed a significant difference between NETs and edema (p <0.0001). The ROC curve analysis revealed a large difference in the ADC, FA, and ISOVF between NETs and edema compared to ICVF and ODI. Principal component analysis of the five parameters showed that ADC, ISOVF, and FA contributed to the differentiation between NETs and edema. Multiple logistic regression analysis was performed with the three aforementioned parameters. A predictive formula could be created to discriminate between NETs and edema, following the use of which, the ROC curve revealed an AUC value of 0.8891. Furthermore, this formula was applied to the edematous regions of the images of the negative control group, and the prediction degree of the tumor was well below 0.5, thus enabling differentiation as edema.Conclusions: NODDI may prove to be a useful tool to discriminate between NETs and edema in the non-contrast T2 hyperintensity region of glioblastoma.

scholarly journals Hyperhomocysteinaemia in Behçet's Disease

2010 ◽  
Vol 2010 ◽  
pp. 1-5 ◽  
Author(s):  
Amira Hamzaoui ◽  
Olfa Harzallah ◽  
Rim Klii ◽  
Silvia Mahjoub
Keyword(s):  
Behçet’S Disease ◽  
Behcet’S Disease ◽  
Homocysteine Level ◽  
Behçet's Disease ◽  
Negative Control Group ◽  
Negative Control ◽  
Control Group ◽  
Behcet's Disease ◽  
Homocysteine Concentration ◽  
Significant Difference

Objectives. The aim of this study was to investigate if hyperhomocysteinaemia is a contributive risk factor for the pathogenesis and the activity of Behçet's disease (BD).Design and Methods. Fifty four patients fullfiling the criteria of the International Study Group for BD were enrolled. Fifty healthy volunteers matched for age and sex with the BD group were included as a negative control group. Patients, with any condition that might affect plasma homocysteine concentration, were excluded.Results. Mean serum homocysteine concentration was significantly higher in patients with BD than in the healthy controls (), in patients with active disease (), and in masculine gender (). There was no significant difference between homocysteine level and clinical involvement.Conclusions. We demonstrated that plasma total homocysteine level (tHcy) is increased in BD and correlated with disease activity. No association was found between homocysteine levels and clinical involvement.

scholarly journals Evaluation of the Sealing Ability of Three Obturation Techniques Using a Glucose Leakage Test

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Katarzyna Olczak ◽  
Halina Pawlicka
Keyword(s):  
Continuous Wave ◽  
Negative Control Group ◽  
Positive Control ◽  
Negative Control ◽  
Control Group ◽  
Thermal Methods ◽  
Root Canals ◽  
Anterior Teeth ◽  
Sealing Ability ◽  
Significant Difference

The aim of this study was to evaluate the sealing ability of three different canal filling techniques. Sixty-four roots of extracted human maxillary anterior teeth were prepared using ProTaper® rotary instruments. The specimens were then randomly divided into 3 experimental groups (n=16) and 2 control groups (n=8). The root canals were filled using cold lateral compaction (CLC group), continuous wave condensation technique using the Elements Obturation Unit® (EOU group), and ProTaper obturators (PT group). For the negative control group, 8 roots were filled using lateral compaction as in the CLC group, and the teeth were covered twice with a layer of nail varnish (NCG group). Another 8 roots were filled using lateral compaction, but without sealer, and these were used as the positive control (PCG group). A glucose leakage model was used for quantitative evaluation of microleakage for 24 hours and 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, and 12 weeks. No significant difference in the cumulative amount of leakage was found between the three experimental groups at all observation times. The lateral condensation of cold gutta-percha can guarantee a similar seal of canal fillings as can be achieved by using thermal methods, in the round canals.

scholarly journals A Digital Microscopic Inspection of Dentinal Defects after Using Endodontic Retreatment Files

2021 ◽  
Vol 2021 ◽  
pp. 1-6
Author(s):  
Ammar AbuMostafa ◽  
Hala Almoqayyad ◽  
Al-Omari Mohammad
Keyword(s):  
Negative Control Group ◽  
Positive Control ◽  
Negative Control ◽  
Control Group ◽  
Filling Material ◽  
Root Canals ◽  
Root Canal Retreatment ◽  
Significant Difference ◽  
Digital Microscope ◽  
Microscopic Inspection

Aim. The study aimed at evaluating the incidence of dentinal defects after root canal retreatment with ProTaper Universal retreatment (PTUR) and XP-endo Shaper and Finisher R (XP). Materials and Methods. Sixty extracted single-rooted human premolars were selected and divided into 4 groups of 15 teeth each. In the negative control group, the teeth were left unprepared. In the positive control group, the teeth were prepared with ProTaper Next and obturated with no further retreatment. In the PTUR and XP groups, the teeth were prepared and obturated followed by removal of the filling material at body temperature using PTUR and XP instruments, respectively. The roots were then sectioned at 3, 6, and 9 mm from the apex and observed under a digital microscope to detect defects. Results. PTUR group showed significantly higher ( p value <0.05) incidence of defects than the other groups. Comparison of no defects versus defects between groups in different areas of root canals demonstrated significant difference among the groups in the apical and cervical regions. Conclusion. Within the limitations of the present study, PTUR files created significantly more dentinal defects than XP files, with most of those defects at the cervical and apical areas of the root canals.

scholarly journals ANTIHYPERGLYCEMIC ACTIVITY OF TINOCRISPOSIDE BY STIMULATING 3T3-L1 ADIPOCYTE CELL DIFFERENTIATION

2018 ◽  
Vol 11 (11) ◽  
pp. 494
Author(s):  
Adek Zamrud Adnan ◽  
Muhammad Taher ◽  
Annisa Fauzana ◽  
Tika Afriani ◽  
Dewi Imelda Roesma ◽  
...  
Keyword(s):  
Cell Differentiation ◽  
Lipid Droplets ◽  
Negative Control Group ◽  
Negative Control ◽  
Control Group ◽  
Antihyperglycemic Activity ◽  
Significant Difference ◽  
Adipocyte Cell ◽  
Oil Red O Staining ◽  
Oil Red O

Objective: The aim of this study is to investigate the antihyperglycemic activity of tinocrisposide by stimulating 3T3-L1 adipocyte cell differentiation. Tinocrisposide is a furanoditerpene glycoside that was isolated from Tinospora crispa (Menispermaceae).Methods: Adipocyte cell differentiation activity of tinocrisposide in interval concentrations of 50, 25, 12.5, and 6.25 μg/ml has been investigated on 3T3-L1 cell line using insulin of 1 μg/ml as a positive and Dulbecco’s modified Eagle media (DMEM) as a negative control group. The effect of tinocrisposide was quantified with oil red O staining method by measuring an absorbance of lipid solution in isopropanol at a wavelength (λ) of 520 nm.Results: Tinocrisposide in the concentrations of 50, 25, 12.5, and 6.25 μg/ml insulin of 1 μg/ml and DMEM groups showed absorbance value of 0.7669, 0.7253, 0.6563, 0.6481, 0.954, and 0.2653, respectively. It was found that there was a significant difference statistically in lipid droplets accumulation among all groups (p<0.05) and tinocrisposide at a concentration of 50 μg/ml showed the highest lipid droplets accumulation in 3T3-L1 adipocyte cells.Conclusion: From the study, it could be concluded that tinocrisposide was able to stimulate the differentiation of adipocyte cell and had antihyperglycemic activity.

scholarly journals HISTOPATHOLOGICAL STRUCTURE OF WHITE RATS LIVER AFTER GIVING ANT NEST EXTRACT DUE TO INDUCED PARACETAMOL TOXIC DOSE

2019 ◽  
pp. 14
Author(s):  
I Made Merdana ◽  
I Made Kardena ◽  
Ketut Budiasa ◽  
I Made Dodi Gunawan
Keyword(s):  
Rat Liver ◽  
Negative Control Group ◽  
Positive Control ◽  
Negative Control ◽  
Control Group ◽  
Toxic Dose ◽  
White Rats ◽  
Significant Difference ◽  
Ant Nest ◽  
Histopathologic Changes

This study aim was to determine the influence ant nest plant extract (Myrmecodia pendans) on histopathological changeof white rat liver (Rattus novergicus) due to induced with paracetamol toxic dose. This study used 24 male white rats, divided into four groups, negative control group (P0) given placebo, positive control group (P1) given paracetamol dose 250 mg / kg bw for 10 days, P2 given ant nest extract 250 mg / kg bw and paracetamol dose 250 mg / kg bw for 10 days, P3 given ants nest extract 250 mg / kg bw for seven days, then continued by giving paracetamol and ants nest extract with dose 250 mg / kg bw for ten days. After the treatment done, all the rats were dinecropsed. Liver organs were taken and processed for making histopathology preparations. Parameters examined included hemorrhage, congestion, degeneration and necrosis. The data obtained were analyzed statistically by using Kruskal Wallis test followed by Mann Whitney test. Mann Whitney test results for all categories of histopathologic changes in  hemorrhagic, congestion, degeneration, and necrosis between negative control group (P0) and positive control group (P1) were significantly different (P <0.05), between negative control (P0) with P2 and P3 there was no significant difference (P> 0,05). Afterward, between the positive control (P1) and P2 with P3 there was a significant difference (P <0.05). I can be concludedthat the administration of paracetamol dose 250 mg/kg bw for 10 days affects the histopathologic changes of white rat liver. The administration of ant nest plant extracts can reduce the side effects of toxic doses of paracetamol.

Study on Reversibility of Genetic Toxicity of TDI in Mice

2011 ◽  
Vol 183-185 ◽  
pp. 905-909
Author(s):  
Miao Yu ◽  
Yu Bin Ji
Keyword(s):  
Chromosome Aberration ◽  
Chromosomal Aberrations ◽  
Negative Control Group ◽  
Negative Control ◽  
Toluene Diisocyanate ◽  
Control Group ◽  
Exposure Group ◽  
Genetic Toxicity ◽  
Significant Difference

Study on whether genetic toxicity of toluene diisocyanate (TDI) is reversible. This paper detected Chromosomal aberrations and content of RNA & DNA. Chromosome aberration rate and the RNA/DNA ratio of TDI 1/4LC50 and 1/2 LC50 dosing exposure group were higher than negative control group significantly (P<0.01). There was no significant difference between 1/4LC50 and 1/2LC50 (P>0.05).The results showed that the damage of TDI on chromosomes and DNA was repairable, but can not be repaired completely.

scholarly journals BIOCHEMICAL AND HAEMATOLOGICAL CHANGES ASSOCIATED WITH TRANSPLACENTAL CONGENITAL MALARIA IN KOGI STATE, NORTH CENTRAL NIGERIA

2021 ◽  
Author(s):  
Shedrack Egbunu Akor ◽  
Dickson Achimugu Musa ◽  
Akogu SPO
Keyword(s):  
Cord Blood ◽  
Statistical Significance ◽  
Negative Control Group ◽  
Negative Control ◽  
Control Group ◽  
Blood Biochemical ◽  
Significant Difference ◽  
Haematological Changes ◽  
Haematological Indices ◽  
Congenital Malaria

Background: Transplacental congenital malaria is a vertical transplacental transmission of malaria parasites from the mother to the baby in utero or perinatally during labor. Cord blood that conveyed oxygen and nutrients from mother to fetus and return with carbon dioxide and other waste materials can transmit malaria pathogen. This study is aim to establish early diagnosis of transplacental congenital malaria using cord blood biochemical and haematological indices. Cord blood from 164 babies delivered at three hospitals in Kogi State between January and December, 2020 were microscopically investigated for malaria parasite. Biochemical and Haematological analyses were done using SYSMEX XP 300, Roche 9180 and VIS Spectrophotometer model 721. The data obtained were expressed as mean plus or minus standard deviation using SPSS 23. The indicator level of statistical significance was set at p<0.05. The results showed significant (p<0.05) decreased in values of WBC, platelet, sodium, potassium, urea, creatinine, RBC, PCV, haemoglobin and MCHC in malaria infected cord blood in comparison to malaria negative control group. Significant (P<0.05) increased activities of liver enzymes (AST, ALT, ALP), total protein, bicarbonate and chloride in malaria infected cord blood when compared with malaria negative group. However, no statistically significant difference in lymphocyte, MCV, MCH, neutrophil and mixed of both malaria infected and malaria negative cord blood. This study suggests that cord blood biochemical and haematological indices can be used to diagnose and manage transplacental congenital malaria in fetus and neonates. Keywords: Transplacental, Biochemical, Haematological and Congenital Malaria.

scholarly journals Pengaruh Kitosan Terhadap Jumlah Osteoklas dan Osteoblas Pada Tikus Galur Wistar Model Menopause

2017 ◽  
Vol 1 (2) ◽  
pp. 76-87
Author(s):  
Muhammad Nur
Keyword(s):  
Treatment Group ◽  
Total Sample ◽  
Negative Control Group ◽  
Positive Control ◽  
Negative Control ◽  
Positive Control Group ◽  
Control Group ◽  
Control Group Design ◽  
White Rats ◽  
Significant Difference

Chitosan is one of the most abundant and dispersed polymers in nature. It has a rapid healing effect for tissues and has an effect on bone remodeling. The purpose of this study was to prove that giving chitosan influenced the decrease of osteoclast number and increasing number of osteoblasts in female mice of wistar strain of ovariectomy menopause model.This study used a posttest only control group design. The total sample of 30 rats divided into three groups was randomized, osteoporosis was made with the menopausal model which was performed ovariectomy in the positive control group and the treatment group then in the treatment group was given chitosan extract of single dose of 45 mg / day via Nasogastric Tube (NGT). K1 was a negative control group (without ovariectomy and without chitosan), K2 was a positive control group (with no chitosan ovariectomy), K3 was the treatment group (ovariectomy and chitosan 45 mg / day).The results showed significant differences in the number of osteoblasts between K1 and K3, K2 with K3, and no significant differences were found in the K1 group with K2. While the number of osteoclasts showed that there were significant differences in K1 group with K2 and no significant difference was found in K1 group with K3, K2 with K3.Conclusions in this study showed that 45 mg / day of chitosan doses could significantly increase osteoblast counts in menopause female white rats and decrease the number of osteoclasts performed by ovariectomy with chitosan administration.

scholarly journals The Effect of Tempeh Gembus Variations to Serum Levels of High Sensitivity C-Reactive Protein (hsCRP) and Serum Levels of Fibrinogen of Sprague Dawley Rats with Aterogenic Diet

2018 ◽  
Vol 25 (1) ◽  
pp. 91-97 ◽  
Author(s):  
Partika Kharunia Dewi ◽  
Diana Nur Afifah ◽  
Ninik Rustanti ◽  
Mohammad Sulchan ◽  
Gemala Anjani
Keyword(s):  
Serum Levels ◽  
Negative Control Group ◽  
Positive Control ◽  
Atherogenic Diet ◽  
Negative Control ◽  
Positive Control Group ◽  
Control Group ◽  
Standard Diet ◽  
Sprague Dawley ◽  
Significant Difference

Abstract Background and aims: Cardiovascular diseases are widespread and causes many deaths in the world. The concentration of acute phase protein: C-reactive protein (CRP) and fibrinogen will rise dramatically when inflammation happens, which that can be used as an early marker of cardiovascular disease risk. Tempeh gembus contains fiber, unsaturated fatty acids and isoflavones are believed to reduce the inflammatory reaction. The aim of the study was to determinate the effect of tempeh gembus variations to levels of hcCRP and levels of fibrinogen of Sprague Dawley rats with atherogenic diet. Material and methods: This study was quasi-experimental with posttest only randomized control group design using 35 Sprague Dawley mice. The rats were randomized into 5 groups: negative control group given the standard diet, the positive control group given standard diet and atherogenic diet, and three treatment groups were given the standard diet, atherogenic diet and variation of tempeh gembus (tempeh gembus, heated tempeh gembus and tempeh gembus with bromelain enzyme) for 28 days. Serum levels of hsCRP and fibrinogen examined using ELISA (Enzyme-linked Immunosorbent Assay). Results and conclusions: The administration of tempeh gembus with bromelain enzyme is the most effective treatment for hsCRP serum level indicated a significant difference (p=0.028) between the negative control group, positive control group and first group with the third group. Fibrinogen serum levels showed significant differences in all treatment groups (p =0.042), administration of tempeh gembus with bromelain enzyme is the most effective treatment is shown by a significant difference between the negative control group and the positive control group with third group. The administration of tempeh gembus with bromelain enzyme for 28 days can reduce the serum levels of hsCRP and fibrinogen on rats significantly.

scholarly journals Stimulantia Effect Of Single Bulb Garlic Extract (Allium Sativum Var.Solo Garlic) in Swiss Webster Mice

2020 ◽  
Vol 17 (2) ◽  
pp. 107-115
Author(s):  
Ika Buana Januarti
Keyword(s):  
Ethanolic Extract ◽  
Negative Control Group ◽  
Negative Control ◽  
Control Group ◽  
Stimulant Effect ◽  
Swimming Time ◽  
Significant Difference ◽  
Garlic Bulb ◽  
The Difference ◽  
Group 5

Stimulant is an agent that stimulates the central nervous system thereby increasing physical and mental abilities and minimizing fatigue. The use of synthetic caffeine stimulants of 10 mg / kg BW is known to have side effects of increasing total cholesterol and increasing LDL, therefore alternative stimulants from natural ingredients are needed. Natural materials that have been studied contain flavonoids and phenolic as a stimulant compound is a single garlic bulbs. The purpose of this study was to determine the stimulant effect of a single garlic bulbs ethanolic extract on mice from the difference in swimming time. The research experimental used Pre test and Post test control design. Sample of this research used mice which were divided into 6 groups. Group 1 pretest dose 5 g / kgBB, group 2 (negative control), group 3 (caffeine), group 4 extract dose 5g / kgBB, group 5 dose 10g / kgBB and group 6 dose 20g / kgBB. Data was analyze using one way Anova continued with Post Hoc test. The group of single garlic bulb ethanolic extract dose 20 g / kgBB had the highest stimulant effect with 222,722 minutes fatigue time difference and statistically have significant difference (p <0.05) than the negative control group. Group of single garlic bulb extract can influence the time of fatigue of mice by extending the swimming time of mice so that it has a longer fatigue time which means it has a stimulant effect

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