Laxative Activities of 80% Methanolic Extract of the Leaves of Grewia ferruginea Hochst Ex A Rich in Mice

Background. There are numerous medicinal plants including the leaves of Grewia ferruginea used as traditional medicine for the treatment of constipation. This study was conducted to evaluate the laxative activity of the leaves of G ferruginea. Methods. The laxative activity of the leaves of G ferruginea was tested using 3 models: laxative activity, gastrointestinal motility, and gastrointestinal secretion tests. The effect of the plant extract on mean number of feces, fecal water content, ratio of intestinal distance traveled by the charcoal meal and intestinal fluid accumulation were evaluated and analyzed. Results. Significant increase was observed in the mean weight of wet fecal matter at 200 (1.00 ± 0.03 g, P < .05) and 400 mg/kg (1.01 ± 0.02 g, P < .01), relative to loperamide constipated negative control group. Similarly, percent fecal water content was significantly improved in extract treated groups at 100 mg/kg (52.10% ± 2.04%, P < .05), 200 mg/kg (54.02% ± 2.15%, P < .01), and 400 mg/kg (54.25% ± 2.50%, P < .01) compared with the negative control group. The gastroinestinal transit ratio was also significantly increased with 200 mg/kg ( P < .01) and 400 mg/kg ( P < .001) of the extract relative to the constipated negative control. The crude extract showed significant increase in intestinal fluid accumulation at 200 mg/kg (0.48 ± 0.07 g, P < .05) and 400 mg/kg (0.51 ± 0.08 g, P < .01) compared with the negative control. Conclusion. The results of the present study indicated that 80% methanol extract of the leaves of G ferruginea possessed significant laxative activity. As such, this study corroborates the traditional claim of using G ferruginea in the treatment of constipation.

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Bioassay of Chick Edema Factor—1962 Collaborative Study

Journal of AOAC INTERNATIONAL ◽

10.1093/jaoac/46.3.406 ◽

1963 ◽

Vol 46 (3) ◽

pp. 406-412

Author(s):

D F Flick ◽

James Winbush ◽

Leo Friedman

Keyword(s):

Collaborative Study ◽

Test Group ◽

Negative Control Group ◽

Negative Control ◽

Pericardial Fluid ◽

Fluid Volume ◽

Control Group ◽

Fatty Material ◽

Edema Factor ◽

The Mean

Abstract The lower limits of sensitivity of the method by Douglass and Flick for the bioassay of the chick edema factor were more clearly delineated by studies this year in which toxic fatty material (TFM) was fed in duplicate trials at 0.00, 0.25, 0.50, 0.75, and 1.00 g per 16 g cottonseed oil, USP. Nine laboratories collaborated in these studies. Results indicated that the following criteria to establish presence of chick edema factor is valid: "t" value exceeds + 1.3, the mean log (pericardial fluid volume X 100) of the negative control group is 1.1460 or less, and the mean log (pericardial fluid volume X 100) of the test group is 1.1461 or more.

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Biosafety devices to control the spread of potentially contaminated dispersion particles. New associated strategies for health environments

PLoS ONE ◽

10.1371/journal.pone.0255533 ◽

2021 ◽

Vol 16 (8) ◽

pp. e0255533

Author(s):

Victor Angelo Martins Montalli ◽

Patrícia Rejane de Freitas ◽

Milenna de Figueiredo Torres ◽

Oscar de Figueiredo Torres Junior ◽

Dienne Hellen Moutinho De Vilhena ◽

...

Keyword(s):

Negative Control Group ◽

Positive Control ◽

Negative Control ◽

High Rate ◽

Positive Control Group ◽

Control Group ◽

Healthy Environment ◽

The Mean ◽

Petri Dishes ◽

Uv C

Dental procedures produce a large amount of spatter and aerosols that create concern for the transmission of airborne diseases, such as Covid-19. This study established a methodology with the objective of evaluating new associated strategies to reduce the risk of cross-transmission in a health environment by simulating spread of potentially contaminated dispersion particles (PCDP) in the environment. This crossover study, was conducted in a school clinic environment (4 clinics containing 12 dental chairs each). As a positive control group (without barriers), 12 professionals activated at the same time the turbine of dental drill, for one minute, with a bacterial solution (Lactobacillus casei Shirota, 1.5x108 CFU/mL), which had been added in the cooling reservoir of the dental equipment. In the experimental groups, the professionals made use of; a) an individual biosafety barrier in dentistry (IBBD) which consists of a metal support covered by a disposable PVC film barrier; b) a Mobile Unit of Disinfection by Ultraviolet-C, consisting of 8 UV lamps-C of 95W, of 304μW/cm2 of irradiance each, connected for 15 minutes (UV-C) and; c) the association between the two methods (IBBD + UV-C). In each clinic, 56 Petri dishes containing MRS agar were positioned on the lamps, benches and on the floor. In addition, plates were placed prior to each test (negative control group) and plates were also placed in the corridor that connects the four clinics. In the groups without barrier and IBBD + UV-C the passive air microorganisms in Petri dishes was also evaluated at times of 30, 60, 90 and 120 minutes after the end of the dental’s drill activation. The mean (standard deviation) of CFU of L. casei Shirota for the positive control group was 3905 (1521), while in the experimental groups the mean using the IBBD was 940 (466) CFU, establishing a reduction on average, of 75% (p<0.0001). For the UV-C group, the mean was 260 (309) CFU and the association of the use of IBBD + UV-C promoted an overall average count of 152 (257) CFU, establishing a reduction on average of 93% and 96%, respectively (p<0.0001). Considering these results and the study model used, the individual biosafety barrier associated with UV-C technology showed to be efficient strategies to reduce the dispersion of bioaerosols generated in an environment with high rate of PCDP generation and may be an alternative for the improvement of biosafety in different healthy environment.

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Association between intestinal microbiota composition and tail-biting in pigs

10.21203/rs.3.rs-21643/v1 ◽

2020 ◽

Cited By ~ 1

Author(s):

Nassima Rabhi ◽

Alexandre Thibodeau ◽

Jean-Charles Côté ◽

Nicolas Devillers ◽

Benoit Laplante ◽

...

Keyword(s):

Intestinal Microbiota ◽

Serum Cortisol ◽

Negative Control Group ◽

Negative Control ◽

Behavioral Disorder ◽

Serum Cortisol Level ◽

Control Group ◽

Fecal Matter ◽

Tail Biting ◽

Significant Difference

Abstract Background: Tail-biting (TB) is a serious behavioral disorder in pigs. It is defined as a pig chewing the tail of another pig. It is an important challenge in swine production as it impacts the animal welfare, its health and the economics and safety of the pork meat supply chain. Some treatments have been proposed but have not proven optimal. Nutrition, feed type and composition, appears to be an important factor in TB behavior, perhaps by modulating the intestinal microbiota (IM). In humans, IM is increasingly recognized as a modulator of behavior. Our aim was to assess an association between TB behavior and IM in pigs through comparisons of IM in groups of biter or bitten pigs to the IM in a non-biter and non-bitten negative control group, and through comparisons of IM between the biter and bitten groups. Each group, composed of 12 pigs, was formed at the beginning of the growing/finishing phase based on a target behavior analysis centered on TB behavior for the biter group and a score of damages caused to the tail for the bitten group. Fecal and blood samples were collected from each pig during a TB episode, at time 0, t0, and after a TB episode, four weeks later, at time 1, t1. Serum cortisol level was determined by ELISA and used as an indicator of stress. The pig’s fecal microbiota was analyzed from DNA extracted from freshly collected fecal matter using amplicon sequencing of the V4 hypervariable region of the 16S rRNA gene. Results: Serum cortisol levels were significantly higher in either the biter or bitten pig groups compared to the negative control group ( p =0.02 and p =0.01, respectively). Interestingly, no significant difference was revealed between the biter and bitten groups. The microbiota alpha-diversity was not significantly different between all groups, biter, bitten and negative control. Analyses of beta-diversity, however, revealed a significant difference between either the biter or the bitten group in comparison to the negative control group in terms of structure and composition of the microbiota. Lactobacillus were significantly more abundant in the negative control group compared to the two other groups ( p =0.001). No significant difference was revealed between the biter and bitten groups. Quantitative real-time PCR (qPCR) confirmed that lactobacilli were more abundant in the negative control group. Conclusions: This study demonstrates that TB behavior is associated to the IM composition in pigs.

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Association Between Tail-Biting and Intestinal Microbiota Composition in Pigs

Frontiers in Veterinary Science ◽

10.3389/fvets.2020.563762 ◽

2020 ◽

Vol 7 ◽

Author(s):

Nassima Rabhi ◽

Alexandre Thibodeau ◽

Jean-Charles Côté ◽

Nicolas Devillers ◽

Benoit Laplante ◽

...

Keyword(s):

Intestinal Microbiota ◽

Serum Cortisol ◽

Negative Control Group ◽

Negative Control ◽

Behavioral Disorder ◽

Serum Cortisol Level ◽

Control Group ◽

Fecal Matter ◽

Tail Biting ◽

Significant Difference

Tail-biting (TB) in pigs is a serious behavioral disorder. It is an important challenge in swine production as it impacts animal welfare and health and the economics and safety of the pork meat supply chain. To prevent TB, approaches including enrichment material and tail docking are proposed but none are optimal. Nutrition appears to be an important factor in TB behavior, perhaps by modulating the intestinal microbiota (IM). Our aim was to assess the association between TB behavior and IM in pigs through comparisons of IM in groups of biter, bitten and non-biter/non-bitten pigs. Each group composed of 12 pigs was formed at the beginning of the growing/finishing phase based on a target behavior analysis centered on TB behavior for the biter group and a score of damages caused to the tail for the bitten group. Blood and fecal samples were collected from each pig during a TB episode, at time 0, t0, and when the TB episode was considered finished, 4 weeks later, at time 1, t1. Serum cortisol level was determined by ELISA and used as an indicator of stress. The pig's fecal microbiota was analyzed from DNA extracted from freshly collected fecal matter using amplicon sequencing of the V4 hypervariable region of the 16S rRNA gene. Serum cortisol levels were significantly higher in either the biter or bitten pig groups compared to the negative control group (p = 0.02 and p = 0.01, respectively). The microbiota alpha-diversity was not significantly different between all groups, biter, bitten and negative control. Analyses of beta-diversity, however, revealed a significant difference between either the biter or the bitten group in comparison to the non-biter/non-bitten negative control group in terms of structure and composition of the microbiota. Lactobacillus were significantly more abundant in the negative control group compared to the two other groups (p = 0.001). No significant difference was revealed between the biter and bitten groups. Quantitative real-time PCR (qPCR) confirmed that lactobacilli were more abundant in the negative control group. Our study indicates that TB behavior is associated with the IM composition in pigs.

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Antiplatelet Effectivity between Aspirin with Honey on Cardiovascular Disease Based on Bleeding Time Taken on Mice

Open Access Macedonian Journal of Medical Sciences ◽

10.3889/oamjms.2019.431 ◽

2019 ◽

Vol 7 (20) ◽

pp. 3416-3420

Author(s):

Sake Juli Martina ◽

Logaselvi A. P. Ramar ◽

Michael R. I. Silaban ◽

Muhammad Luthfi ◽

Pradeepa A. P. Govindan

Keyword(s):

Cardiovascular Disease ◽

Bleeding Time ◽

Negative Control Group ◽

Negative Control ◽

Control Group ◽

Post Test ◽

The Mean ◽

The University ◽

North Sumatra ◽

Aspirin Group

BACKGROUND: The prevalence of cardiovascular disease (CVD) and its mortality continues to increase. Various studies have shown aspirin can reduce CVD mortality but has adverse side effects. Research on a comparison between aspirin and honey has not been done, but both have antiplatelet effects. AIM: This study is aimed to prove the antiplatelet effects on honey and compare the antiplatelet effects of aspirin with honey based on the bleeding time in mice. METHODS: This study is a true experimental design with a post-test only control group using 32 male mice, Double Ditsch Webster, ± 3 months old, the weight of 20-30 g, divided into 4 groups. Consisting of a negative control group (placebo), aspirin and honey. The suspension has given orally for 12 days using the probe. The research was conducted at the Laboratory of Pharmacology Department of Pharmacology and Therapeutics Faculty of Medicine, the University of North Sumatra in September until December 2015. The data collected was bleeding time in mice. Data analysed by Shapiro Wilk test, Kruskal Wallis and Mann Whitney. RESULTS: The mean bleeding time was a placebo (102.88 seconds), aspirin (369.38 seconds) and honey (304.63 seconds). Mann Whitney test showed significant results in the aspirin and honey groups against the control group (placebo) with p = 0.001. There were no significant differences in the aspirin group against honey (p = 0.172). Honey has an antiplatelet effect in mice. The mean bleeding time in mice given honey is longer or closer to the mean bleeding time in the aspirin group. CONCLUSION: The results could be used as a basis for further research to determine its use in humans with cardiovascular disease.

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Oral Rehydration Salt-Liquid as an Alternative Storage Medium - A Preliminary Study

Journal of Clinical Pediatric Dentistry ◽

10.17796/jcpd.35.4.a23g135265n2h241 ◽

2011 ◽

Vol 35 (4) ◽

pp. 393-396 ◽

Cited By ~ 5

Author(s):

P Subramaniam ◽

U Eswara ◽

KL Girish Babu ◽

B Vardhan

Keyword(s):

Test Group ◽

Negative Control Group ◽

Positive Control ◽

Negative Control ◽

Oral Rehydration Salt ◽

Control Group ◽

Oral Rehydration ◽

Pdl Cells ◽

The Mean ◽

Group 5

Objective: To assess the efficacy of Oral Rehydration Salt-Liquid (ORS-L) in the maintenance of the viability of Periodontal ligament cells (PDL). Materials and Method: Twenty freshly extracted teeth were used for this study. They were then randomly divided into 3 groups: Positive control group - 5 teeth which were immediately subjected to collagenase assay, without immersing in ORS-L; Negative control group - 5 teeth with an extra oral dry time of 24 hours, followed by subjecting to collagense assay without immersing in ORS-L and Test group (ORS-L) - 10 teeth with an extra oral dry period of 30 minutes, followed by immersion in ORS-L for a period of 45 minutes and then subjected to collagenase assay. The mean number of viable PDL cells were counted on a hemocytometer under 20X magnification. Results: The mean number of viable PDL cells was highest in the positive control group. In comparison to the negative control group, the test group showed a higher number of viable PDL cells. Conclusion: The study found that ORS-L was an effective solution in maintaining the viability of PDL cells.

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The Effect of Environmental Enrichment with Autistic-like Behavior Symptoms on a Rattus norvegicus Model

Open Access Macedonian Journal of Medical Sciences ◽

10.3889/oamjms.2021.5616 ◽

2021 ◽

Vol 9 (A) ◽

pp. 78-81

Author(s):

Amel Yanis ◽

Yanwirasti Yanwirasti ◽

Nurmiati Amir ◽

Ekowati Handharyani

Keyword(s):

Social Interaction ◽

Rattus Norvegicus ◽

Environmental Enrichment ◽

Intervention Group ◽

Negative Control Group ◽

Positive Control ◽

Negative Control ◽

Control Group ◽

Repetitive Movements ◽

The Mean

AIM: The aim of this study was to investigate the effect of environmental enrichment with autistic-like behavior symptoms on a Rattus norvegicus model. METHODS: The post-test control only group design is used in this study. The study sample is baby of Rattus norvegicus Sprague Dawley strain who were born to cows who gave birth for the 1st time and children from cows who had been injected with valproic acid (VPA) who gave birth for the 1st time. This study has been divided into three groups, namely, negative control, positive control, and intervention: the negative control group; the VPA without enrichment as positive control; and the VPA group with enrichment as intervention group. One-way ANOVA tests were used to data analysis. Data are processed using SPSS version 23.0. RESULTS: This study showed that the mean of social interaction in the negative control group was 359.11 ± 39.33 s higher than the positive control, namely, 182.00 ± 35.80 s and 244.56 ± 19.06 s for intervention. The mean of repetitive movement in the negative control group was 48.00 ± 9.03 s lower than the positive control, namely, 212.11 ± 41.43 s and intervention 160.00 ± 18.91 s. There has been an influence of environmental enrichment with social interaction and repetitive movements on a Rattus norvegicus model (p < 0.05). CONCLUSION: This study confirmed that there has been an influence of environmental enrichment with social interaction and repetitive movements on a Rattus norvegicus model.

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In situ Effect of Nanohydroxyapatite Paste in Enamel Teeth Bleaching

The Journal of Contemporary Dental Practice ◽

10.5005/jp-journals-10024-2164 ◽

2017 ◽

Vol 18 (11) ◽

pp. 996-1003 ◽

Cited By ~ 2

Author(s):

Cecy Martins Silva ◽

Yasmin SB de Lima Gomes ◽

Larissa D Alexandrino ◽

Cristiane de M Alencar ◽

Eliane B Alves ◽

...

Keyword(s):

Negative Control Group ◽

Positive Control ◽

Knoop Hardness ◽

Negative Control ◽

Control Group ◽

Tristimulus Colorimetry ◽

Before And After ◽

The Mean ◽

Bleaching Treatment

ABSTRACT Aim Evaluate in situ the effect of nanohydroxyapatite paste (nano-HAP) before bleaching with hydrogen peroxide 35% (HP35%) by ion chromatography (IC) Knoop hardness number (KHN) and tristimulus colorimetry (TC). Materials and methods A total of 60 fragments were obtained from third molars included (3 mm × 3 mm × 3 mm) and the specimens were divided into three groups (n = 20): Gas chromatography (CG) (negative control group) = no bleaching; HP35% (positive control group) = HP35% whitening (whiteness HP35%); nano-HAP = application for 10 minutes before bleaching treatment + HP35%. The specimens were fixed to the volunteers’ molars. The KHN and TC were measured before and after bleaching. For IC, the dentin layer was removed, leaving the enamel that was crushed, and autoclaved for chemical quantification (calcium, fluorine, and phosphorus). The results of KHN and TC were analyzed statistically by analysis of variance (ANOVA) followed by Tukey test (p < 0.05). Results The HP35% group showed reduction of the Ca, F, and P ions. The initial and final KHN mean of the CG and nano-HAP did not differ statistically; however, the group of HP35% did differ statistically. The mean ∆E of the HP35% and nano-HAP groups did not differ statistically from each other. However, they differed from the CG. Conclusion The nano-HAP paste preserved the KHN, promoted the lower loss of Ca and P ions and an increase of F ions when compared with the CG, but did not influence the effectiveness of the bleaching treatment. Clinical significance Nano-HA is a biomaterial that has shown positive results in the prevention of deleterious effects on the enamel by the action of the office bleaching treatment. How to cite this article Gomes YSBL, Alexandrino LD, Alencar CDM, Alves EB, Faial KCF, Silva CM. In situ Effect of Nanohydroxyapatite Paste in Enamel Teeth Bleaching. J Contemp Dent Pract 2017;18(11):996-1003.

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Study of goat milk and goat milk yogurt to decrease parasitemia index on malaria-infected mice

Food Research ◽

10.26656/fr.2017.4(s3).s26 ◽

2020 ◽

Vol 4 (S3) ◽

pp. 127-133

Author(s):

M. Sada ◽

A.M. Legowo ◽

G. Anjani

Keyword(s):

Goat Milk ◽

Negative Control Group ◽

Negative Control ◽

Control Group ◽

Post Inoculation ◽

Post Test ◽

The Mean ◽

Group B ◽

Post Hoc ◽

Additional Therapy

Malaria is an infectious disease caused by the Plasmodium sp. parasite. In 2017, malaria has reached 219 million cases. The decline of parasitemia index indicates a lower degree of infection in malaria patients. Goat milk and goat milk yogurt as immunomodulators have the potential to reduce parasitemia index. This study was aimed to determine the effect of goat milk and goat milk yogurt on the index of parasitemia in malaria-infected mice. This research was a true experimental study with a post-test only group design. A total of thirty-five female Balb/c mice was divided into the following groups: a (negative control group), b (malaria), c (malaria, Dihydroartemisinin/piperaquine (DHP) drug), d (malaria, goat milk), e (malaria, goat milk, DHP), f (malaria, goat milk yogurt), and g (malaria, goat milk yogurt, DHP). Inoculation dose of Plasmodium was 107 /0.2 mL. The intervention was studied for 24 days. Parasitemia index data was collected on the seventh day post-inoculation. The dose of goat milk and goat milk yogurt given was 0.5 mL/20 g BW. Data were analyzed using Kruskal-Wallis with Mann-Whitney post-hoc test. The results showed a significant decrease in the parasitemia index (p<0.05). The mean parasitemia index in each group were: 0% (a); 13.9% (b); 0.60% (c); 4.68% (d); 3.74% (e); 3.66% (f); 0.82% (g). The group that exhibited effective reduction of parasitemia index were group c and g. Goat milk yogurt (f) was more effective in decreasing the parasitemia index than goat milk (d). Giving goat milk yogurt can be considered an additional therapy for the treatment of malaria.

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Effect of HylocereusPolyrhizus Rind Extract Toward Interleukin-1β, Vascular Endothelial Growth Factor Expression, Endometriosis Implant Area

International Journal of Pharmaceutical and Clinical Research ◽

10.25258/ijpcr.v9i08.9588 ◽

2017 ◽

Vol 9 (08) ◽

Author(s):

YanuarEka P. ◽

Hendy Hendarto ◽

Widjiati .

Keyword(s):

Vascular Endothelial Growth Factor ◽

Growth Factor ◽

Treatment Group ◽

Negative Control Group ◽

Negative Control ◽

Control Group ◽

Vascular Endothelial ◽

Mice Model ◽

Endothelial Growth Factor ◽

Fruit Rind

Retrograde menstruation lead to I Kappa B Kinase (IKK) fosforilation in peritoneum macrophage and cause secretion of proinflammatory cytokine interleukin1β then stimulate endometriosis cell to produce Vascular Endothelial Growth Factor which lead to increasing of endometriosis lession seen as endometriosis implant area. Cytokine secretion was inhibited through prevention of NF-κB activation by dragon red fruit rind extract (Hylocereuspolyrhizus). The aim of this reserach is to know the effect of dragon red fuit rind extract with 0,25; 0,5; and 1 mg/g bodyweight dosage toward IL-1β, VEGF expression and implant area in endometriosis mice model. The design of this experiment was randomized post test only control group design.Endometrios mice model were made in 14 days and split into two group, positive control group and treatment group after two week negative control group and postive control group were given Na-CMC 0,5% solution consequetively, and treatment group were given dragon red fruit extract with different dosage. Signification number for IL-1β is p>0,05, signification number for VEGF is p>0,05, and implant area signification number is p>0,05. Administration of dragon red fruit rind extract can decrease IL-1β, VEGF, and implant area.

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