scholarly journals Effects of Malaria on Activity Budgets of Experimentally Infected Juvenile Apapane (Himatione Sanguinea)

The Auk ◽  
2000 ◽  
Vol 117 (3) ◽  
pp. 731-738 ◽  
Author(s):  
Nancy Yorinks ◽  
Carter T. Atkinson
Keyword(s):  
Body Mass ◽  
Body Condition ◽  
Subcutaneous Fat ◽  
Significant Loss ◽  
Acute Illness ◽  
Control Groups ◽  
Activity Budgets ◽  
Initial Infection ◽  
In The Wild ◽  
And Control

Abstract We used behavioral, physiological, and parasitological measures to document effects of acute malarial infections on activity budgets of experimentally infected juvenile Apapane (Himatione sanguinea). Five of eight birds died within 20 to 32 days after exposure to a single infective mosquito bite. Infected Apapane devoted less time to locomotory activities involving flight, walking or hopping, and stationary activities such as singing, preening, feeding, and probing. The amount of time spent sitting was positively correlated with parasitemia and increased dramatically after infection and between treatment and control groups. Birds that succumbed to infection experienced a significant loss of body mass and subcutaneous fat, whereas surviving Apapane were better able to maintain body condition and fat levels. When rechallenged with the parasite five months after initial infection, surviving birds experienced no increase in parasitemia, indicating that they had become immune to reinfection. Regardless of the outcome, infected birds experienced acute illness that would have left them unable to forage or to escape from predators in the wild.

The relationship between body mass index with nausea and vomiting in the first trimester

2011 ◽  
Vol 26 (S2) ◽  
pp. 1107-1107
Author(s):  
F. Ranjbar ◽  
S. Abbasalizadeh ◽  
H. Islamifard ◽  
A. Alizadeh
Keyword(s):  
Body Mass Index ◽  
Pregnant Women ◽  
Body Mass ◽  
First Trimester ◽  
Major Effect ◽  
Nausea And Vomiting ◽  
Case Group ◽  
Control Groups ◽  
And Control ◽  
The Relationship

IntroductionNausea and vomiting in the first trimester is a common complaint of about 70% of pregnant women and it has a major effect on their quality of life. Its etiology is unknown but there are some risk factors for it.AimsThe purpose of this study was to obtain the relationship between body mass index (BMI) and nausea and vomiting during pregnancy.MethodsThis case-control study was performed on 300 pregnant women who had referred to outpatient clinics. 150 of these women were suffering from nausea and vomiting while the other 150 didn’t have this problem. We determined BMI in two groups. Then the results were analyzed statistically.ResultsThe age average was 24.9 and 26.2 in case and control groups respectively. The BMI average was 26.01 kg/m2 and 26.02 kg/m2 in case and control groups respectively. No significant relationship was observed between two groups regarding the presence of nausea but in case group, women with vomiting had lower BMI (p = 0.026).ConclusionsIt was concluded that BMI is not a risk factor for nausea and vomiting during pregnancy.

scholarly journals Association of Hearing Loss With Cognitive Decline in Alzheimer’s Disease and Vascular Dementia

2021 ◽  
Author(s):  
Bin Liu ◽  
Ying Zhao ◽  
Guifeng Zhao ◽  
Ling Jin ◽  
Wei Li
Keyword(s):  
Body Mass Index ◽  
Hearing Loss ◽  
Risk Factor ◽  
Cognitive Impairment ◽  
Vascular Dementia ◽  
Hearing Impairment ◽  
Body Mass ◽  
Hba1c Level ◽  
Control Groups ◽  
And Control

Abstract Background: Alzheimer’s disease (AD) and vascular dementia (VaD) are responsible for at least 20 % of diagnosed cases of dementia. It has been established that hearing loss is a risk factor for cognitive impairment and dementia. In this study, the association between hearing impairment and AD/VaD was determined in patients, as well as the characteristics of hearing loss in the two types of dementia.Methods: 70 participants comprising 30 subjects in control group, 20 patients in AD group, and 20 patients in VaD group, were recruited and assessed with respect to pure-tone audiometric test for peripheral auditory system. On admission, age, gender, body mass index (BMI), smoking and drinking habits, diabetes, stroke, family history, as well as levels of cholesterol (TC), triglycerides (TG), fasting blood glucose (FBG), low-density lipoprotein (LDL), and glycosylated hemoglobin A1c (HbA1c) were measured. Hearing loss results and other clinical indexes were analyzed, and their correlations with severity of dementia were determined.Results: Degree of hearing impairment and HbA1c level differed significantly between the AD and control groups. However, only age and degree of hearing impairment were positively correlated with grades of cognitive impairment in AD and control groups. Body mass index (BMI) and smoking history; HbA1c level, grades of cognitive impairment, and degree of hearing impairment, as well as related cognitive impairment, differed significantly between VaD and control groups. Results of logistic regression analysis indicated that the degree of hearing impairment could be a predictor for grades of cognitive impairment in AD and VaD. Moreover, the degree of hearing loss in full band hearing was significantly higher in VaD group than in AD group.Conclusion: Hearing loss may be a potential risk factor for cognitive impairment in AD and VaD, two major types of dementia with different clinical characteristics. The clinical features of hearing loss in the two types dementia might be helpful in their diagnosis and treatment.

scholarly journals MUSCLE WASTING AFTER 48 HOURS OF FOOD DEPRIVATION DIFFERS BETWEEN MOUSE STRAINS AND IS PROMOTED BY MYOSTATIN DYSFUNCTION

2016 ◽  
Vol 2 (101) ◽  
pp. 53-60
Author(s):  
Petras Minderis ◽  
Indrė Libnickienė ◽  
Aivaras Ratkevičius
Keyword(s):  
Muscle Mass ◽  
Body Mass ◽  
Food Deprivation ◽  
Muscle Hypertrophy ◽  
Muscle Wasting ◽  
Mouse Strains ◽  
Muscle Loss ◽  
Control Groups ◽  
Level Of Significance ◽  
And Control

Background. Genetic factors play an important role in determining muscle mass. Indeed, myostatin dysfunction is associated with a pronounced muscle hypertrophy. The aim of our study was to test the hypothesis that starvation induced muscle wasting differs between BEH+/+ and C57BL/6J strains of mice and myostatin dysfunction prevents muscle wasting in BEH strain. Methods. 18-week-old males of C57BL/6J, BEH+/+ and BEH were subjected to 48 h food deprivation (FD). C57BL/6J mice were representatives of classic mouse strain. BEH mice which differ from BEH+/+ mice by Compact mutation in the Mstn gene represented a model for myostatin dysfunction. All mice were divided into experimental and control groups. The control groups consisted of mice fed ad libitum. Seven mice were studied in each group. Mice were weighed before as well as 24 h and 48 h after FD which was followed by dissection and weighing of the hindlimb skeletal muscle. Results. BEH and BEH+/+ mice showed a similar (16.9 ± 1.4% vs. 19.3 ± 2.4%, p > .05) loss of body mass while loss of body mass in C57BL/6J mice was the greatest (24.8 ± 1.9%, p < .001) after FD. The loss of muscle mass was significant in both BEH (p < .001) and C57BL/6J (p < .01) mice, but it was below the level of significance (p > .05) in BEH+/+ mice. Conclusions. Myostatin dysfunction promotes muscle atrophy after FD. During short periods of FD, BEH+/+ mice are more resistant to body and muscle loss compared to C57BL/6J mice.

scholarly journals The effects of a sled push at different loads on 20 metre sprint time in well-trained soccer players

2021 ◽  
Vol 1 (1) ◽  
Author(s):  
Nick Grimes ◽  
Jorge Arede ◽  
Benjamin Drury ◽  
Steve Thompson ◽  
John Fernandes
Keyword(s):  
Body Mass ◽  
Repeated Measures ◽  
Soccer Players ◽  
Control Group ◽  
Control Groups ◽  
Experimental Conditions ◽  
Repeated Measures Anova ◽  
Sprint Time ◽  
And Control ◽  
Experimental Group

This study determined the effects of a single sled push at different loads on sprint performance in competitive male soccer players. Twenty male competitive outfield soccer players (age 19.6±1.3y, body mass 73.6±8.2kg) were split into experimental (n=10) and control groups. In the experimental group, 20m linear sprint time was measured immediately before and 5, 6 and 7minutes after the sled push with either 50 or 100% body mass. The control group performed the 20m sprints only. A repeated measures ANOVA comparing control and experimental groups revealed no effects of time, group or time by group interaction for either experimental condition (all P>0.05). The repeated measures ANOVA compared the experimental conditions revealed effects of time (P=0.034) and group (P=0.002), but not time by group (P>0.05). The effects sizes demonstrated within group effects on sprint time that were small to moderate (-0.26 to 0.71) and trivial to small (-0.31 to 0.09) for the 50% and 100% body mass condition, respectively. These findings demonstrate that a sled push has no significant effect on 20 m sprint time in competitive footballers. If coaches continue to prescribed a sled push before sprinting, a single 15 m push with 50% body mass could have positive benefits.

Conjugated Linoleic Acid Causes a Marked Increase in Liver α-Tocopherol and Liver α-Tocopherol Transfer Protein in C57BL/6 J Mice

2010 ◽  
Vol 80 (1) ◽  
pp. 65-73 ◽  
Author(s):  
Pei-Min Chao ◽  
Wan-Hsuan Chen ◽  
Chun-Huei Liao ◽  
Huey-Mei Shaw
Keyword(s):  
Antioxidant Enzymes ◽  
Linoleic Acid ◽  
Conjugated Linoleic Acid ◽  
Thiobarbituric Acid ◽  
Control Group ◽  
Thiobarbituric Acid Reactive Substances ◽  
Control Groups ◽  
Protein Levels ◽  
Transfer Protein ◽  
And Control

Conjugated linoleic acid (CLA) is a collective term for the positional and geometric isomers of a conjugated diene of linoleic acid (C18:2, n-6). The aims of the present study were to evaluate whether levels of hepatic α-tocopherol, α-tocopherol transfer protein (α-TTP), and antioxidant enzymes in mice were affected by a CLA-supplemented diet. C57BL/6 J mice were divided into the CLA and control groups, which were fed, respectively, a 5 % fat diet with or without 1 g/100 g of CLA (1:1 mixture of cis-9, trans-11 and trans-10, cis-12) for four weeks. α-Tocopherol levels in plasma and liver were significantly higher in the CLA group than in the control group. Liver α-TTP levels were also significantly increased in the CLA group, the α-TTP/β-actin ratio being 2.5-fold higher than that in control mice (p<0.01). Thiobarbituric acid-reactive substances were significantly decreased in the CLA group (p<0.01). There were no significant differences between the two groups in levels of three antioxidant enzymes (superoxide dismutase, glutathione peroxidase, and catalase). The accumulation of liver α-tocopherol seen with the CLA diet can be attributed to the antioxidant potential of CLA and the ability of α-TTP induction. The lack of changes in antioxidant enzyme protein levels and the reduced lipid peroxidation in the liver of CLA mice are due to α-tocopherol accumulation.

A Collaborative Study to Establish an International Standard for Alpha-Thrombin

1992 ◽  
Vol 67 (04) ◽  
pp. 424-427 ◽  
Author(s):  
P J Gaffney ◽  
A B Heath ◽  
J W Fenton II
Keyword(s):  
Elevated Temperatures ◽  
Collaborative Study ◽  
World Health Organisation ◽  
Significant Loss ◽  
Thrombin Inhibitors ◽  
World Health ◽  
Expert Committee ◽  
International Standard ◽  
Assay Procedure ◽  
And Control

SummarySince 1975 an International Standard for Thrombin of low purity has been used. While this standard was stable and of value for calibrating thrombins of unknown potency the need for a pure a-thrombin standard arose both for accurate calibration and for precise measurement of thrombin inhibitors, notably hirudin. An international collaborative study was undertaken to establish the potency and stability of an ampouled pure a-thrombin preparation. A potency of 97.5 international units (95% confidence limits 86.5-98.5) was established for the new a-thrombin standard (89/ 588) using a clotting-assay procedure. Stability data at various elevated temperatures indicated that the standard could be transported and stored with no significant loss of potency.Ampoules of lyophilised a-thrombin (coded 89/588) have been recommended as an International Standard for a-thrombin with an assigned potency of 100 international units per ampoule by the International Society for Thrombosis and Haemostasis (Thrombin and its Inhibitors Sub-Committee) in Barcelona, Spain in July 1990 while the Expert Committee on Biological Standardisation and Control of the World Health Organisation will consider its status at its next meeting in Geneva in 1991.

The Prospects and Risks Connected with Increasing the Level of Self-Organisation in Students

2020 ◽  
pp. 75-81
Author(s):  
Svetlana Alexandrovna Kosareva ◽  
Keyword(s):  
Higher Education ◽  
Professional Competence ◽  
Initial Level ◽  
Education Institution ◽  
Diagnostic Methods ◽  
Study Guide ◽  
Learning Approaches ◽  
Control Groups ◽  
Self Organisation ◽  
And Control

The paper describes the method for increasing the level of self-organisation in students which has been developed by the author. It also contains the method testing results and presents the prospects and risks teachers could face while applying the method in a higher education institution. The purpose of this study is to find out the prospects and risks of applying the method for increasing the level of self-organisation in students and to determine the ways of reducing the risks. Methodology. The author points out the learning approaches which were the basis of developing the method and describes diagnostic methods for determining students’ self-organisation levels. The work focused on increasing each student’s initial level consists of a theoretical and a practical part and includes project activities on creating a study guide. The results of the study. The method developed proved to be effective. It was established by diagnosing the final level of self-organisation in students in the experimental and control groups. The paper considers the advantages of the method among which there is universal character, flexibility, improvements to teacher’s and students’ professional competence, etc. At the same time it is necessary to be aware of the risks due to the increased amount of teacher’s work and the fact that students’ work within the project tends to be monotonous. In conclusion, the prospects of the method for increasing the level of self-organisation in students are related to its advantages and the final results of the work. The risks of its use can be reduced with the help of the measures proposed in the paper.

Sri Lankan Cleft Lip and Palate Study Model Analysis: Clefts of the Secondary Palate

1993 ◽  
Vol 30 (2) ◽  
pp. 227-230 ◽  
Author(s):  
Andrew Mccance ◽  
David Roberts-Harry ◽  
Martyn Sherriff ◽  
Michael Mars ◽  
William J.B. Houston
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Model Analysis ◽  
Control Group ◽  
Tooth Size ◽  
Sri Lankan ◽  
Control Groups ◽  
Secondary Palate ◽  
Comparable Control ◽  
And Control

The study models of a group of adult Sri Lankan patients with clefts of the secondary palate were investigated. Tooth-size and arch-dimension comparisons were made with a comparable control group. Significant differences were found between the cleft and control groups in tooth sizes, chord lengths, and arch widths. The cleft group dimensions were generally smaller than those of the control group. Overjets were larger in the cleft group.

THE EFFECT OF APPLYING ANIMAL CARTOON PICTURES ON STUDENTS’ ACHIEVEMENT IN WRITING NARRATIVE TEXT

2017 ◽  
Vol 6 (1) ◽  
Author(s):  
Hasanul Arifin Zul And Masitowarni Siregar
Keyword(s):  
T Test ◽  
Narrative Text ◽  
Control Group ◽  
First Year ◽  
Writing Achievement ◽  
Control Groups ◽  
Post Test ◽  
Written Test ◽  
And Control ◽  
Experimental Group

This thesis is focused on the investigation of the effect of applying animal cartoon pictures on students’ achievement in writing narrative text. This study aims to find whether applying animal cartoon pictures significantly affect the students’ writing achievement or not. The data in this study were obtained by administering a written test. The population was the 2015/2016 first year (grade XI) of SMA Swasta Nusantara Lubuk Pakam and 66 students were taken as the sample by using random sampling. The sample was divided into two groups, experimental and control groups. The experimental group was taught by applying animal cartoon pictures while the control group without animal cartoon pictures (x = lecturing). The data were taken the scores from the pre-test and post-test to both experimental and control groups. These data were analyzed by using t-test. The result of computing the t-test obviously showed that t-observed is higher than t-table (5.21 >1,67) with the degree of freedom 64 (df =N-2) at the level significance 0,05 one tail test. It showed that the application of animal cartoon pictures significantly affected the students of SMA Swasta Nusantara Lubuk Pakam achievement in writing narrative text.

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