Soluble fluoride in Na2FPO3/CaCO3-based toothpaste as an indicator of systemically bioavailable fluoride

2021 ◽  
Author(s):  
Deborah Rackel Caldas da Rocha ◽  
Antonio Pedro Ricomini Filho ◽  
Jaime Aparecido Cury
Keyword(s):  
Body Weight ◽  
Blood Plasma ◽  
Fluoride Concentration ◽  
Fluoride Ion ◽  
Fresh Sample ◽  
Treatment Groups ◽  
Statistical Correlations ◽  
Group I ◽  
Total Urine ◽  
In Blood Plasma

Fluoride chemically soluble in toothpaste is an indicator of fluoride bioavailability when the teeth are brushed and the same should be expected systemically when toothpaste is ingested. A four-phases study was conducted, in which eight participants were subjected in each phase to one of the assigned treatment groups: Group I: fresh sample of a Na2FPO3/CaCO3 toothpaste with 1,334 μg F/g of total soluble fluoride (TSF); groups II–IV: aged samples of toothpaste presenting TSF concentrations of 1,128, 808, and 687 μg F/g, respectively. In all phases, the participants ingested an amount of toothpaste equivalent to 70.0 µg F/kg body weight, as total fluoride (TF). Blood was collected before (baseline) and up to 180 min after toothpaste ingestion as indicator of fluoride bioavailability. Total urine (24 h before and 24 h after ingestion) was collected as indicator of absorbed fluoride that was excreted. F concentration in blood plasma and urine was determined with a fluoride ion-specific electrode. The areas under the curve of F concentration vs. time (AUC=ng F/ml x min) and the peaks of fluoride concentration in blood plasma (Cmax) were calculated. The net amount of fluoride excreted (mg/day) was calculated by subtraction. A significant correlation of the amount (mg) of TSF ingested was found between the AUC (r= 0.76; p<0.01) and Cmax (r= 0.86; p<0.01) in plasma, and the fluoride excreted (r= 0.65; p<0.01). For TF no statistical correlations were found (p>0.05). Data suggest that the concentration of TSF found in Na2FPO3/CaCO3-based toothpastes is a useful predictor of how much fluoride will be systemically bioavailable when this type of formulation is ingested.

Chemically Soluble Fluoride in Na2FPO3/CaCO3-Based Toothpaste as an Indicator of Fluoride Bioavailability in Saliva during and after Toothbrushing

2020 ◽  
Vol 54 (2) ◽  
pp. 185-193
Author(s):  
Camila Siqueira Silva Coelho ◽  
Jaime Aparecido Cury ◽  
Cínthia Pereira Machado Tabchoury
Keyword(s):  
Fluoride Concentration ◽  
Area Under The Curve ◽  
Fluoride Ion ◽  
Selective Electrode ◽  
Fresh Sample ◽  
Group V ◽  
Group I ◽  
Adult Participants ◽  
The Relationship ◽  
Fluoride Ion Selective Electrode

The relationship between the concentration of chemically soluble fluoride found in toothpaste and that present in saliva, during and after brushing, was evaluated as an indicator of potentially bioavailable fluoride in toothpaste. Ten adult participants brushed their teeth with the assigned toothpastes: group I: fresh sample of a fluoride toothpaste: Na2FPO3/CaCO3, 1,378 µg F/g of total soluble fluoride (TSF); groups II–IV: aged samples of toothpaste presenting TSF concentrations of 1,160, 900, and 597 µg F/g, respectively; group V: non-F placebo toothpaste. The volunteers brushed their teeth for 1 min with 0.7 g of the toothpaste, all toothbrushing residues (TR) produced were collected, the mouth was rinsed with water, and saliva samples were collected up to 120 min. Total fluoride (TF) and TSF concentrations were determined in TR and in saliva samples using a fluoride ion-selective electrode. TSF concentration (µg F/mL) in TR was determined as an indicator of fluoride bioavailability during toothbrushing and the areas under curves of saliva fluoride concentration versus time (area under the curve, AUC = µg F/mL × min) were calculated as an indicator of fluoride bioavailability after toothbrushing. A significant correlation was found between the TSF concentrations in the toothpastes and the variables TR (r = 0.850; p = 0.0001) and AUC (r = 0.445; p = 0.004). For TF no significant correlation was found for TR (r = –0.099; p = 0.542) and AUC (r = –0.018; p = 0.912). The findings suggest that TSF concentration chemically found in Na2FPO3/CaCO3-based toothpaste could estimate how much fluoride would be bioavailable in saliva when the teeth are brushed.

Evaluation of unconventional poultry feed in broilers

2019 ◽  
Vol 17 (1) ◽  
Keyword(s):  
Body Weight ◽  
Treatment Group ◽  
Blood Meal ◽  
Feed Consumption ◽  
Trial Period ◽  
Feed Ingredients ◽  
Treatment Groups ◽  
Broiler Production ◽  
Group I ◽  
Unconventional Feed

Background: Commercial broiler is a rapidly growing sector in Bangladesh. The broilers are supplied with the balanced ration prepared from a number of ingredients which are not available uniformly throughout the years. On the other hands, manufactured feeds are costly and inconvenient for the rural farmers. This study is undertaken to use unconventional feed ingredients aiming to decrease the broiler production cost. Method: A total of ninety-nine day- old broiler chicks (Hubbard) of either sex were used in this study in 3 treatment groups to assess processed unconventional feed item (shoti, blood meal, poultry dropping and molasses) on growth and profitability upon rearing for 60 days. Broilers were reared in dip litter system and were fed ad libitum on conventional and unconventional diet dividing into 3 treatment diets namely, treatment diet 1 (T1: Conventional as control), treatment diet 2 (T2: unconventional with blood meal and shoti), and treatment diet 3 (T3: unconventional with blood meal, shoti, poultry droppings and molasses) throughout the trial period. Treatment group 1 (T1) was used as control. Results: Broilers fed on control diet (conventional feed) achieved higher (P<0.01) body weight, while the broilers offered diets with the highest amount of unconventional feed had the lowest body weight. Increased (P<0.01) feed intake was observed during 21days and 49 days of age when broilers fed diets with the supplementation, but no significant differences were found among the groups in terms of feed consumption during 33 day of age. FCR differed significantly (P<.01) throughout the trial period with the broilers fed diets without supplementation of unconventional feed item had the superior FCR than the others. Mortality rate was 6.06%,9.09%, and 9.09% in treatment group I, treatment group II, and treatment group III respectively while live weights, feed conversion and feed consumption was unaffected by all the dietary groups with/without incorporation of unconventional feed item up to day 60 days of age. Statistically significant (P<0.01) decreased live weight was observed among the treatment groups in 60-day-old birds. Productivity and cost-benefit analysis were performed. Conclusion: Use of unconventional feed ingredients in broiler production greatly reduces the feed cost with little hampering the growth rate and hence, it is profitable for the farmers.

scholarly journals Pathomorphological changes of flunixin meglumine toxicity in layer chicks

2016 ◽  
Vol 8 (3) ◽  
pp. 1253-1259 ◽  
Author(s):  
R. A. Patel ◽  
K. B. Kapadiya ◽  
D. J. Ghodasara
Keyword(s):  
Body Weight ◽  
Clinical Signs ◽  
Weight Ratio ◽  
Group Iv ◽  
Mean Values ◽  
Group Iii ◽  
Treatment Groups ◽  
Flunixin Meglumine ◽  
Group I ◽  
Urate Crystals

The aim of the 21 day toxicity study was to evaluate the pathomorphological effect of flunixin meglumine in layer chicks. The chicks of Group I were kept as control while groups II, III and IV were fed with diet containing flunixin meglumine @ 10 ppm, 25 ppm and 50 ppm respectively for 21 days. Clinical signs viz. anorexia, dullness,lethargy, lameness and uneven growth were noticed in chicks of treatment groups III and IV only. Maximum mortality was observed in group IV (12%) followed by group III (4%). A dose dependant reduction in body weight was observed in all the treatment groups. The mean values of Kidney: Body weight ratio was significantly increased in group IV. The plasma uric acid, creatinine and BUN values were significantly increased in group III whereas increase in group IV was highly significant. Grossly, there was deposition of chalky white urates on serosal surface of kidney, heart and liver in chicks of group IV which died during experiment. Microscopically, lesions were characterized by varying degrees of congestion, haemorrhages, degeneration, necrosis and deposition of urate crystals in visceral organs of group III and group IV chicks. The intensity and distribution of pathological lesions were more severe in chicks of group IV, followed by chicks of group III. The overall lesions gave an impression that flunixin meglumine was nephrotoxic in nature.

scholarly journals Impact of sex and diet on hematological and blood plasma biochemical profiles and liver histology of pikeperch (Sander lucioperca (L.))

2016 ◽  
Vol 24 (2) ◽  
pp. 61-68 ◽  
Author(s):  
Zdzisław Zakęś ◽  
Krystyna Demska-Zakęś ◽  
Mirosław Szczepkowski ◽  
Maciej Rożyński ◽  
Elżbieta Ziomek
Keyword(s):  
Body Weight ◽  
Blood Plasma ◽  
Liver Histology ◽  
Mean Corpuscular Hemoglobin ◽  
Corpuscular Hemoglobin ◽  
Sander Lucioperca ◽  
Glucose Content ◽  
Group I ◽  
Biochemical Profiles ◽  
The Impact

Abstract The aim of the study was to determine the impact of diet and sex on the hematological and blood plasma biochemical profiles and the liver histology of pikeperch, Sander lucioperca (L.) reared in recirculating aquaculture systems (RAS) (initial mean body weight (BW) 1.35 kg). The proximate composition of the two commercial feeds used were (protein/lipid/nitrogen-free extracts) (P/L/NFE)) P505/L118/NFE294 g kg−1 (group I) and P471/L141/NFE290 g kg−1 (group II). Neither diet nor sex had a significant impact on final fish body weight (≈ 2.0 kg). Sex was noted to significantly impact glucose content (Glu – higher in males) and cholesterol (Chol – higher in females) in the blood plasma. Diet was confirmed to have a significant impact on levels of hematocrit (Ht), hemoglobin (Hb), and mean corpuscular hemoglobin (MCH), and the values of these indicators were higher in group I. Sex had a significant impact on Ht, Hb, MCH, and mean corpuscular hemoglobin concentration (MCHC), with higher values in male pikeperch. Diet and sex had significant impacts on the values of the pikeperch hepatosomatic index (HSI), hepatocyte size and that of their nuclei, and the values of the nucleocytoplasmic index (NCI).

scholarly journals Possibilities for prediction of congenital fetal malformations and chromosomal abnormalities based on the determination of the levels of free amino acids and their nitrogen-containing derivatives in blood plasma of pregnant women

2020 ◽  
pp. 152-158
Author(s):  
L. N. Keda ◽  
A. V. Naumov ◽  
V. YU. Smirnov
Keyword(s):  
Amino Acids ◽  
Blood Plasma ◽  
Pregnant Women ◽  
Free Amino Acids ◽  
Free Amino ◽  
Chromosomal Abnormalities ◽  
Group I ◽  
Fetal Malformations ◽  
In Blood Plasma

Objective: to determine the possibilities for prediction and diagnosis of congenital fetal malformations and chromosomal abnormalities on the basis of the study of the levels of amino acids and their nitrogen-containing derivatives in blood plasma of pregnant women with pathological conditions requiring artificial termination of pregnancy. Material and methods. The content of free amino acids and their nitrogen-containing derivatives was studied in 104 pregnant women having congenital malformations and chromosomal abnormalities in their fetuses at 13-22 weeks` gestation (group I) and 25 women with physiological pregnancy (group II). The amino acid level was determined by the high-performance liquid chromatography method. Results. The levels of 14 out of the 26 studied amino acids in the blood plasma of the pregnant women of group I were statistically higher than those of the women in group II. ROC analysis was used to determine six amino acids (glycine, α-aminobutyric acid, hydroxylysine, glutamic acid, citrulline, serine) and their threshold values which with high accuracy (85.3 %) allow of predicting congenital fetal malformations and chromosomal abnormalities. A prognostic model making it possible to determine high probability of congenital fetal anomalies based on the determination of the concentration of 5-hydroxytryptophan, glycine, asparagine, and serine in blood plasma of pregnant women has been developed. Conclusion. The study of the levels of amino acids and their nitrogen-containing derivatives in plasma of pregnant women at 13-22 weeks` gestation can be used for prenatal diagnosis of congenital fetal malformations and chromosomal abnormalities, as well as used as an additional criterion for making the decision on the necessity for artificial termination of pregnancy upon fetal medical indications.

scholarly journals The Effect of Caffeine Treatment during Organogenesis Period on the Birth Weight of the Rat Fetuses (Rattus norvegicus)

2016 ◽  
Vol 1 (2) ◽  
Author(s):  
Hery Wijayanto ◽  
Tri Wahyu Pangestiningsih ◽  
Erdiansyah Rahmi
Keyword(s):  
Body Weight ◽  
Birth Weight ◽  
Rattus Norvegicus ◽  
Control Group ◽  
Pregnant Rats ◽  
Pregnant Rat ◽  
Treatment Groups ◽  
Caffeine Treatment ◽  
Group I ◽  
Fetal Birth Weight

The study was conducted to investigate the effects of caffeine treatment during organogenesis period to the fetal birth weight, using rat (Rattus norvegicus) as the animal model. Thirty-six primipararat obtained from Unit Pengembangan Hewan Percobaan, Gadjah Mada University (UPHP-GMU), 3 month old, 165-200 g body weight, were divided into 6 groups, consisted of 6 rats each. Six of the ratshave been selected based on the estrous cycles, and only rat with regular estrous were use for theexperiment. The rat then were mated, and during day 6-14 of the pregnancies were treated orally withcaffeine diluted in aquadest in dosage: placebo (1 cc aquadest) for group I (control), and 5.4, 10.8, 16.2,21.6, and 27 g/200 g body weight/day for treatment groups II-VI respectively. The pregnant rat bodyweights were determined at day 6 of pregnancies for calculating the caffeine treatment dosages. At day 20thof the pregnancies all of the pregnant rats were caesarotomized, and all of the fetuses were removed and weighed. The results showed that all of the treatment groups have significantly lower birth weightcompare to the groups control group. More over, fetal obtained from the treatment groups also showedserious subcutaneous hemorrhagic.Keywords: organogenesis, Rattus norvegicus, birth weight

scholarly journals The effect of high levels of organic selenium on body weight, concentration of selenium in blood plasma and mortality of chickens

2006 ◽  
Vol 22 (3-4) ◽  
pp. 97-104
Author(s):  
Mirjana Joksimovic-Todorovic ◽  
B. Zivkovic ◽  
Vesna Davidovic
Keyword(s):  
Body Weight ◽  
Blood Plasma ◽  
Body Mass ◽  
Diet Group ◽  
Selenium Yeast ◽  
Organic Selenium ◽  
Weight Concentration ◽  
High Level ◽  
Experimental Group ◽  
In Blood Plasma

It is examined the effects of high levels organic selenium (selenium yeast) on body weight, concentration Se in blood plasma and mortality of chickens. The experiment is carried with 100 Hybro chickens, which are divided in 5 groups. The experiment lasted 42 days. Chickens are fed with standardized diets in which are added 0, 2, 5, 10 or 15 mgSe/kg diet. Chickens fed with 2 mgSe/kg diet (group II) by seventh day to the end of fourth week are registered the important higher body weight in relate to I group (P<0,05*; P<0,01**). At the end fifth week chickens of II group had a little higher body weight than the chickens of first group, but at the end of sixth week their body weight were the same. The chickens of III group had (5 mgSe/kg feed) had until fifth week of experiment higher body mass in relate to chickens first group, but this differences were not statistical significant (P>0,05*). At the end of the experiment (sixth week) the their body weight was little lower then body mass chickens of first group. Chickens of IV and V group (10 and 15 mgSe/kg feed) had little higher increasing than chickens first group until fifth week of the experiment, but at the and of the experiment chickens IV group had lesser body weight, and chickens of V group bigger body mass then chickens of I group. The concentration of selenium in blood plasma of chickens fed with high levels of organic selenium (groups II, III, IV and V) was importantly higher (P<0,05*; P<0,01**) with all experimental periods in relate with I group. The concentration of selenium in blood plasma was increased with increasing of level of selenium in diet and time exposure. The highest level of selenium in blood plasma are established at the and of experiment (sixth week), with all experimental group. There were not effects on mortality of chickens fed of the high level organic selenium.

scholarly journals The effect of feeding a diet naturally contaminated with deoxynivalenol on production traits and selected biochemical indicators of broiler chickens

2011 ◽  
Vol 80 (3) ◽  
pp. 287-292 ◽  
Author(s):  
Márta Erdélyi ◽  
Mária Weber ◽  
Krisztián Balogh ◽  
Zsolt Ancsin ◽  
Miklós Mézes
Keyword(s):  
Blood Plasma ◽  
Broiler Chickens ◽  
Reduced Glutathione ◽  
Lipid Peroxide ◽  
Redox Status ◽  
Production Traits ◽  
Treatment Groups ◽  
Effect Of Feeding ◽  
Glutathione Redox ◽  
In Blood Plasma

The effect of feeding a diet naturally contaminated with deoxynivalenol (DON) (0-21 days: 1.50 mg·kg-1; 22-39 days: 1.54 mg·kg-1) was studied in 40 broiler chickens. Birds were divided into two groups fed a control diet and a diet contaminated with DON (n = 20 in each). Feed intake was measured daily and individual live weight weekly; daily weight gain and feed to gain ratio were calculated. Five animals from each group were euthanized on days 21and 39 when blood (blood plasma and red blood cell haemolysates) and liver samples were collected. Concentration of triglyceride, uric acid and glucose and activities of ALT, AST and LDH were measured in blood plasma. Indicators of lipid peroxide and glutathione redox status, malondialdehyde and reduced glutathione concentration and glutathione-peroxidase activity were measured in blood plasma, red blood cell haemolysates and liver homogenates. The low dose of DON did not cause difference in the production traits, but caused significantly lower concentration of uric acid and glucose, and significantly higher concentration of triglyceride in blood plasma on day 21. Enzyme activities in blood plasma did not differ significantly between the treatment groups. Among the markers of lipid peroxide and glutathione redox status, malondialdehyde content was significantly higher in liver homogenate on day 21 in the group fed with DON contaminated diet, but reduced glutathione content and glutathione peroxidase activity did not differ significantly between the treatment groups. The results showed that diet contaminated even with a low content of deoxynivalenol caused alterations in selected biochemical indicators of blood and liver of broiler chicken.

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