Hyaluronan affects extravascular water in lungs of unanesthetized rabbits

1989 ◽  
Vol 66 (6) ◽  
pp. 2595-2599 ◽  
Author(s):  
J. Bhattacharya ◽  
T. Cruz ◽  
S. Bhattacharya ◽  
B. A. Bray

We have determined whether changes in lung hyaluronan content affect extravascular water in lungs of unanesthetized rabbits. Three groups of experiments were performed. In group 1 (n = 12), no infusions were given; in group 2, nine pairs of rabbits received either intravenous hyaluronidase (750 U.kg-1.min-1) or an equivalent volume of saline; in group 3, nine pairs of rabbits received either hyaluronidase or saline, followed by intravenous saline infusion amounting to 24% of body weight. At the end of each experiment, one lung was analyzed for extravascular lung water by the wet-dry method. Except for group 3, in all animals the other lung was analyzed for hyaluronan content by a method that involved hydrolyzing lung hyaluronan with fungal hyaluronidase to release reducing N-acetyl glucosamine groups, which were quantified. In group 1, lung hyaluronan, which varied from 50 to 159 micrograms/g dry wt (mean 106 +/- 35 micrograms/g dry wt), significantly correlated with variation in extravascular lung water (mean 4.2 +/- 0.3 g/g dry wt). In group 2 rabbits given hyaluronidase, lung hyaluronan was 40% lower and extravascular lung water was 14.6% lower than in paired controls (P less than 0.01). In group 3, volume expansion did not affect lung water, except after hyaluronidase when lung water was 47% higher than paired controls. We conclude that in the lung the content of hyaluronan is one of the determinants of extravascular water content.

2019 ◽  
Vol 39 (3) ◽  
pp. 163-167 ◽  
Author(s):  
José R.G. Lopes ◽  
José A.S. Araújo ◽  
Danielle A.N. Pessoa ◽  
Stephen Lee ◽  
Daniel Cook ◽  
...  

ABSTRACT: Sudden deaths after colostrum ingestion in kids and lambs born to mothers grazing in areas with Amorimia septentrionalis have been reported in the Brazilian northeastern semi-arid region, in Paraíba state. This study aimed to determine whether the sodium monofluoracetate (MF) contained in A. septentrionalis is eliminated in milk, causing the death of kids. After confirming gestation on the 25th day after mating, 26 goats were randomly distributed into three groups. In Group 1, eight goats received fresh leaves of A. septentrionalis in daily doses of 1g/kg body weight, administered at three different periods during gestation: from days 91 to 100, 116 to 125, and from day 140 until delivery day. In Group 2, consisting of 10 females, eight goats received 1g/kg body weight of A. septentrionalis dried and milled leaves, fed daily from the 140th day of gestation until delivery. The other two goats of this group did not ingest the plant during gestation and after delivery the colostrum supplied to their kids was replaced by colostrum of goats from that same group that had ingested the plant. Eight goats from Group 3 (control) did not ingest A. septentrionalis. Seven goats from Group 1 showed signs of poisoning from 2nd to 8th days of plant administration, in all periods, and recovered within 7 to 12 days. Another goat presented severe clinical signs and was submitted to euthanasia in extremis. Two goats aborted. Four kids, from two goats, received colostrum and, after 15 minutes, presented depression, breathing wheezing, lateral recumbence, bleating, and death. Two goats gave birth at night; the two kids were found dead and, at necropsy, it was verified that they were born alive. The last goat in this group gave birth to two kids which showed no signs of poisoning after colostrum ingestion. In Group 2, the eight goats that ingested dry leaves of the plant presented tachycardia and engorgement of the jugular veins; six aborted, and the kids of the other two goats died immediately after delivery without ingesting colostrum. The three kids of the two goats that did not ingest the plant during gestation did not show signs of poisoning after ingesting colostrum from the goats that had ingested the plant. In Group 3, all females kidded normally and the kids showed no signs of poisoning. Ten leaf samples of A. septentrionalis contained 0.00074% ±0.00018 MF. These results demonstrate that the MF of A. septentrionalis is eliminated in colostrum and may cause the death of kids. As in previous reports, the plant also caused abortion.


2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
T Weiss ◽  
R De Caterina ◽  
P Kelly ◽  
P Monteiro ◽  
J C Deharo ◽  
...  

Abstract Background Non-vitamin K antagonist (VKA) oral anticoagulants (NOACs) have substantially improved anticoagulation therapy for prevention of stroke and systemic embolism in patients with atrial fibrillation (AF), and available routine care data have so far broadly confirmed the safety of different NOACs in routine practice. However, such data for edoxaban are scarce, especially in extremely low and high body weight (BW). These extreme BWs may affect the bioavailability, distribution, and half-life of NOACs and, consequently, outcomes of treatment. Methods We analysed outcomes in normal-weight (BMI 18.5–25) vs overweight (BMI 25–30) and obese (BMI >30) patients enrolled into the ETNA-AF-Europe observational study (NCT02944019) collecting information on patients treated with edoxaban in 825 sites in 10 European countries. This snapshot analysis set includes data of 7,672 patients (56.3% of all enrolled patients) which have completed their 1-year follow-up visit (mean follow-up: 343.5 days). Results Median patient age was 74 years for all patients, 76 years for patients with a BMI 18.5–25 (group 1), 75 years for patients with BMI 25–30 (group 2), and 72 for patients with a BMI >30 (group 3). CrCl was 64 mL/min for patients with a BMI 18.5–25, 68 mL/min for patients with BMI 25–30, and 72 mL/min for patients with a BMI >30. The CHA2DS2-VASc (mean 3.1±1.38) and HAS-BLED (mean 2.5±1.10) score did not differ significantly between groups. As expected, diabetes and hypertension were significantly less prevalent in leaner patients and - accordingly - inversely correlated to age. There was no correlation between body weight and life-threatening bleeding (group 1: 0.28%; group 2: 0.40%; group 3: 0.14%). Also, stroke rates (group 1: 0.74%; group 2: 0.81%; group 3: 0.76%) did not differ between groups. Conclusion BMI, within the range here assessed, does not affect 1-year outcomes in European AF patients treated with edoxaban. Acknowledgement/Funding Daiichi Sankyo Europe GmbH, Munich, Germany


2000 ◽  
Vol 1 (3) ◽  
pp. 199-209
Author(s):  
Wanda Zziwambazza ◽  
Carrie J. Merkle ◽  
Ida M. Moore ◽  
Jean Davis

In this retrospective study employing chart reviews, 75 open heart surgery patients (OHSPs) were divided into 3 groups of 25 patients. Group 1 received no intravenous (IV) norepinephrine (NE) after surgery. Group 2 and group 3 received a minimum of 0.028 mcg/kg/min of IV NE for 6-24 h and greater than 24 h, respectively. In the 3 groups, preoperative lymphocyte counts were compared to counts obtained on postoperative days 1 and 2. The results showed lower lymphocyte counts on postoperative day 2 in group 3 subjects, who received NE for 24 h or more, compared to subjects of the other groups who received no NE or 6-24 h of NE (p < 0.05). There was also evidence that preoperative use of beta-blocking agents significantly affected the change in lymphocyte counts from day 1 to day 2 in both groups receiving NE. Furthermore, postoperative infections were more prevalent in group 3 than the other 2 groups (p < 0.05). The lower lymphocyte counts and higher infection rate, however, may be linked to lower postoperative blood pressure and increased number of intensive care unit days in group 3. Further investigation is warranted to elucidate the effects of IV NE administration on the lymphocyte counts of OHSPs and to reduce infections in those receiving NE.


2006 ◽  
Vol 30 (2) ◽  
pp. 65-78
Author(s):  
A. K. Kassab

This study was conducted to investigate the effect of Licorice roots powder for 35 days in reducing the severity of infection with infectious bursal disease (IBD)and the immune response and performance of broiler chicks .A Total of 150 day old broiler chickens were divided into 5 groups and treated as follows : Group 1: infected with IBD virus at 21 days of age. Group 2: infected with IBD virus at 21 days of age and given 1 gm of Licorice roots powder /1 L of drinking water one day after infection . Group 3 : given 1 gm Licorice roots powder / 1L of drinking water at day one of age and infected with IBD virus at day 21 of age . Group 4:given 1 gm Licorice roots / 1 L of drinking water at 22 days of age .Group 5: untreated control. Antibody (Ab) of IBD titer was measured by ELIZA , the serum total protein (STP) the serum Globulin(SG)and the blood picture were determined , the water content of the droppings was measured , the body weight , food intake was recorded, there was increase (P<0.01) in the (Ab)titer of IBD virus in the group3 comparing with the other groups , the bursa / body weight index (B:BW)three days after infection was increased (P<0.01) in group1 , the STP , the SG , the PCV and RBCs was increased (P<0.01) in group 3 at age 27 days the food intake (FI) Food conversion ratio (FCR) and body weight (BW) in Group 3 were significantly increased , the dropping water content was significantly (P<0 .01)increased in group 3 in comparison with other groups at the period from 23-27 days of age, the morbidity and Mortality rate were significantly lower in group 3 and then 2 in comparison with group 1 (50 % , 63.3 %, 90 % ) and (6.6 % , 16.6 % ,30%) respectively


2020 ◽  
Vol 14 (02) ◽  
pp. 250-259 ◽  
Author(s):  
Marcos Cezar Ferreira ◽  
Karina Maria Salvatore de Freitas ◽  
Francyle Simões Herrera-Sanches ◽  
Patrícia Bittencourt dos Santos ◽  
Daniela Garib ◽  
...  

Abstract Objective The purpose of this study was to evaluate and compare the axial inclination of the mandibular first molars and their respective bone morphology among individuals with different facial patterns. Materials and Methods The sample comprised the cone beam computed tomographies (CBCTs) of 58 subjects divided into three groups according to the facial patterns: 18 brachyfacial (Group 1), with a mean age of 21.58 years; 23 mesofacial (Group 2), with a mean age of 19.14 years; and 17 dolichofacial subjects (Group 3), with a mean age of 19.09 years. Eight variables were evaluated on CBCT scans of each subject: buccal and lingual mandibular height, cervical and middle mandibular width, inclination of mandibular body, inclination of the mandibular molar buccal surface, molar width, molar angulation and tooth/bone angle. Intergroup comparisons were performed with one-way analysis of variance followed by Tukey tests. Results Buccal mandibular height presented statistically significant difference in the three facial patterns. Lingual mandibular height and mandibular inclination showed to be statistically and significantly smaller in brachyfacial subjects than in the other two groups. Mandibular width presented a statistically significant difference between brachyfacial and mesofacial groups. Negative correlations could be observed between the facial pattern and the buccal and lingual mandibular heights and inclination of the mandibular body. Conclusion Buccal mandibular height was significantly and progressively larger in brachyfacial, mesofacial, and dolichofacial subjects. Lingual mandibular height was significantly smaller in brachyfacial than in mesofacial and dolichofacial subjects. Mandibular width was significantly thicker in brachyfacial than in mesofacial subjects. Brachyfacial subjects had smaller mandibular inclination than mesofacial and dolichofacial subjects.


2008 ◽  
Vol 52 (No. 9) ◽  
pp. 413-418 ◽  
Author(s):  
S. Cech ◽  
R. Dolezel

Different procedures of treatment of large follicular ovarian cysts in 177 sows using GnRH, hCG and PGF2α are evaluated in this study. Ovarian cysts were diagnosed by transcutaneous ultrasonography, which was a part of routine pregnancy diagnosis. No treatment was performed in the control group (Group 1, <i>n</i> = 29); the method of treatment used in the other groups immediately after the diagnosis was intramuscular administration of lecirelin in doses 50 µg (Group 2, <i>n</i> = 28), 100 µg (Group 3, <i>n</i> = 27) and 200 µg divided into 2 equal doses administered at a 12-hour interval (Group 4, <i>n<i> = 25) and of hCG in doses 1 500 IU (Group 5, <i>n</i> = 23), 3 000 IU (Group 6, <i>n</i> = 21), and 250 µg of cloprostenol (Group 7, <i>n</i> = 24). Insemination rate (IR), conception rate (CR) in inseminated sows, pregnancy rate (PR = recovery rate), treatment-insemination interval (TII) and treatment-pregnancy interval (TPI) within 42 days after the initial examination were evaluated. In addition PR in groups of sows divided according to parity (1–3, 4–6 and ≥ 7) were also evaluated. IR and PR were higher in Group 4 (84.0% and 44.0%) and lower in Group 1 (17.2% and 6.9%) in comparison with the other groups (<i>P</i> < 0.001 and <i>P</i> < 0.05). CR, TII and TPI did not differ between the experimental groups. PR were similar in sows with different parity. The study proved a positive response in sows with large follicular ovarian cysts to the treatment consisting of 2 administrations of 100 µg GnRH at a 12-hour interval.


2014 ◽  
Vol 25 (1) ◽  
pp. 48-53 ◽  
Author(s):  
Deceles Cristina Costa Alves ◽  
Paulo Sérgio Perri de Carvalho ◽  
Elizabeth Ferreira Martinez

The objective of this study was to evaluate the bacterial seal at the implant-abutment interface using two morse taper implant models, by means of an in vitro microbiological analysis. For that were used 15 implants with mini-abutments tightened by friction, no screws (Group 1); and 30 implants with screw-tightened abutments, of which 15 received 20 N.cm of closing torque (Group 2) and the other 15 received 30 N.cm (Group 3). Microbiological analysis was carried out using colonies of Escherichia coli transported directly from a culture dish to the prosthetic component. Friction implants (Group 1) were activated by tapping and a torque wrench was used for screw-tightened implants (Groups 2 and 3). Each abutment/implant set was immersed in test tubes containing 5 mL of brain-heart infusion broth and incubated at 37 °C for 14 days, observed daily for the presence of contamination. A statistically significant difference was observed regarding the number of contaminated implants. There was greater contamination in Group 2 implants (p<0.05), with no statistically significant difference between the other groups (Group 1 = 20% and Group 3 = 0%). It was concluded that there was no significant difference in in vitro bacterial sealing between implants with mini-abutments tightened by friction without screws and implants with screw-tightened abutments with 30 N.cm of closing torque. The difference in closing torque altered the in vitro sealing ability of the tested abutments, with a greater contamination for components that received a closing torque of 20 N.cm.


2010 ◽  
Vol 4 (3) ◽  
pp. 194-201 ◽  
Author(s):  
Ariella Fornachari Ribeiro ◽  
Maria Isabel d'Ávila Freitas ◽  
Márcia Radanovic ◽  
Letícia Lessa Mansur

Abstract The generation of inferences makes the construction and comprehension of discourse easier, and integrates representations which add coherence to the arguments. Visuoperceptual and inferential deficits merge in the attempt to explain the difficulties that some individuals have in the comprehension of certain kinds of visual stimuli. Objectives: a) To examine the performance of cognitively healthy elderly subjects in the execution of visual inferences using pictures of different levels of complexity; b) To compare the performance of subjects according to schooling level. Methods: A total of 45 normal elderly aged from 61 to 82yrs (M=68; SD=0.57) were examined. The subjects were divided into three groups according to schooling level: Group 1 (1 to 4 years); Group 2 (5 to 8 years) and Group 3 (9 or more years). Each subject had to create a narrative based on four figures with controlled visual complexity. The narratives were transcribed, analysed and scored. Results: For the essential inferences, the high educated group (3) had a better performance in both visually simple and complex conditions. On the visually complex figures, the medium educated group (2) was statistically equivalent to the high educated group for one figure and equivalent to the less educated group (1) for the other. There was no difference among the groups for the accessory propositions. Conclusions: Visual complexity interferes with the subject's ability to make inferences in low and medium educated individuals. High educated subjects maintain the same performance in making inferences, regardless of the visual complexity level.


2017 ◽  
Vol 27 (6) ◽  
pp. 746-750 ◽  
Author(s):  
Tai K. Kim ◽  
Hye Y. Shin ◽  
Su Y. Kim ◽  
Young C. Lee ◽  
Mee Y. Lee

Purpose To evaluate factors associated with response to intravitreal bevacizumab (IVB) and intravitreal triamcinolone acetonide (IVTA) in diabetic macular edema (DME). Methods Ninety-one eyes of 88 patients diagnosed with DME were enrolled in this retrospective chart review. Group 1 included eyes that showed good response to IVB. Group 2 included eyes that did not respond to IVB but responded to IVTA. Group 3 included eyes that responded to neither. Clinical factors, HbA1c, and optical coherence tomography (OCT) findings including patterns of macular edema were compared among the 3 groups. Results A total of 44, 27, and 20 eyes were included in groups 1, 2, and 3, respectively. HbA1c was higher in group 3 than in the other groups. Proportion of full (combination of all patterns) type edema was higher in group 3 than in the other 2 groups. In group 1, the proportion of sponge-like diffuse retinal thickening type was higher and cystoid macular edema type was lower than in the other groups. Conclusions The degree of diabetic control and morphologic subtypes with OCT should be considered to better predict the prognosis after treatment in DME.


Animals ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 2224
Author(s):  
Jakub Biesek ◽  
Aleksandra Dunisławska ◽  
Mirosław Banaszak ◽  
Maria Siwek ◽  
Marek Adamski

The aim of the study was to compare the production, muscle traits and gene expression in the intestinal mucosa of chickens supplemented with aluminosilicates in feed and litter simultaneously. A total of 300 Ross 308 were maintained for 42 days. Group 1 was the control group. In group 2, 0.650 kg/m2 of halloysite was added to the litter and 0.5–2% to the feed (halloysite and zeolite in a 1:1 ratio); in group 3, we added zeolite (0.650 kg/m2) to the litter and 0.5–2% to the feed. The production parameters, the slaughter yield and analyses of muscle quality were analyzed. There was a higher body weight, body weight gain and feed conversion ratio on day 18 and 33 in group 3, and a higher feed intake on day 19–33 in groups 2 and 3 than in 1. A lower water-holding capacity was found in the breasts of group 2 and in the legs of group 3 compared to group 1. The expression of genes related to the immune response, host defense and intestinal barrier and nutrient sensing in the intestinal tissue was analyzed. The results show a beneficial effect on the immune status of the host without an adverse effect on the expression of genes related to intestinal tightness or nutritional processes. Due to the growth, meat characteristics and the positive impact of immunostimulant and regulating properties, aluminosilicates can be suggested as a litter and feed additive in the rearing of chickens.


Sign in / Sign up

Export Citation Format

Share Document