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637 records – page 1 of 64.

A 15-yr longitudinal study of xerostomia in a Swedish population of 50-yr-old subjects.

https://arctichealth.org/en/permalink/ahliterature90130
Source
Eur J Oral Sci. 2009 Feb;117(1):13-9
Publication Type
Article
Date
Feb-2009
Author
Johansson Ann-Katrin
Johansson Anders
Unell Lennart
Ekbäck Gunnar
Ordell Sven
Carlsson Gunnar E
Author Affiliation
Department of Clinical Dentistry-Cariology, Faculty of Medicine and Dentistry, University of Bergen, Bergen, Norway. Ann-Katrin.Johansson@iko.uib.no
Source
Eur J Oral Sci. 2009 Feb;117(1):13-9
Date
Feb-2009
Language
English
Publication Type
Article
Keywords
Age Factors
Aged
Circadian Rhythm
Cross-Sectional Studies
Female
Health status
Humans
Longitudinal Studies
Male
Middle Aged
Sex Factors
Smoking - epidemiology
Statistics, nonparametric
Sweden - epidemiology
Xerostomia - epidemiology
Abstract
The aim of this study was to determine the changes in prevalence of xerostomia in subjects from 50 to 65 yr of age. Questionnaires were sent to all subjects who were born in 1942 and were living in two Swedish counties in 1992, 1997, 2002, and 2007. The analyses focused on those who answered the questionnaires both in 1992 and in 2007. The response rate was 71.4% (n = 6,346) in 1992 and 73.1% (n = 6,078) in 2007. Of those who answered the questionnaire in 1992, 74.3% (n = 4,714) also responded in 2007. There was an almost linear increase in the prevalence of xerostomia at the four study time-points (i.e. when the subjects were 50, 55, 60, and 65 yr of age). Xerostomia was more prevalent at night than during the day. The pooled prevalence of night-time and daytime xerostomia was 6% at 50 yr of age and 15% at 65 yr of age, and it was higher in women than in men on both occasions. Logistic regression analyses showed that impaired health and smoking were significantly associated with daytime xerostomia but not with night-time xerostomia. Despite the increase in prevalence of xerostomia from 50 to 65 yr of age, there was considerable variation during the observation period. The incidence rate was 13% (507/4,015) and the disappearance rate was 42% (104/250) (dichotomized answers).
PubMed ID
19196313 View in PubMed
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20th International Symposium on Shiftwork and Working Time: biological mechanisms, recovery, and risk management in the 24-h society.

https://arctichealth.org/en/permalink/ahliterature124129
Source
Chronobiol Int. 2012 Jun;29(5):531-6
Publication Type
Article
Date
Jun-2012
Author
Göran Kecklund
Lee Di Milia
John Axelsson
Arne Lowden
Torbjörn Åkerstedt
Author Affiliation
Stress Research Institute, Stockholm Unversity, Stockholm, Sweden. goran.kecklund@stress.su.se
Source
Chronobiol Int. 2012 Jun;29(5):531-6
Date
Jun-2012
Language
English
Publication Type
Article
Keywords
Circadian Rhythm - physiology
Congresses as topic
Humans
Light - adverse effects
Occupational Health
Risk
Risk Management
Sleep - physiology
Sweden
Work
Work Schedule Tolerance
Abstract
This dedicated issue of Chronobiology International is devoted to the selected proceedings of the 20th International Symposium on Shift Work and Working Time held in Stockholm, Sweden, 28 June to 1 July 2011. It constitutes the fifth such issue of the journal since 2004 dedicated to the selected proceedings to the meetings of the Working Time Society. The key theme of the 20th Symposium was "Biological Mechanisms, Recovery, and Risk Management in the 24-h Society." The collection of papers of this dedicated issue represents the best of contemporary research on the effects of night and rotating shift schedules on worker health and safety. The contents cover such topics as sleep restriction, injuries, health, and performance of night work and rotating shiftwork, plus light treatment as a countermeasure against the circadian disruption of shiftwork. The majority of the papers are observational field studies, including some of large sample size, and three studies are well-designed laboratory experiments.
PubMed ID
22621348 View in PubMed
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24-h ambulatory blood pressure is linked to chromosome 18q21-22 and genetic variation of NEDD4L associates with cross-sectional and longitudinal blood pressure in Swedes.

https://arctichealth.org/en/permalink/ahliterature81774
Source
Kidney Int. 2006 Aug;70(3):562-9
Publication Type
Article
Date
Aug-2006
Author
Fava C.
von Wowern F.
Berglund G.
Carlson J.
Hedblad B.
Rosberg L.
Burri P.
Almgren P.
Melander O.
Author Affiliation
Department of Clinical Sciences, University Hospital MAS, Malmö, Sweden.
Source
Kidney Int. 2006 Aug;70(3):562-9
Date
Aug-2006
Language
English
Publication Type
Article
Keywords
Adult
Alternative Splicing
Antihypertensive Agents - therapeutic use
Blood Pressure - genetics
Blood Pressure Monitoring, Ambulatory
Chromosomes, Human, Pair 18
Circadian Rhythm
Cross-Sectional Studies
Female
Genetic Predisposition to Disease - epidemiology
Genotype
Humans
Hypertension - drug therapy - epidemiology - genetics
Insulin - blood
Linkage (Genetics)
Longitudinal Studies
Male
Middle Aged
Phenotype
Polymorphism, Single Nucleotide
Risk factors
Sweden - epidemiology
Ubiquitin-Protein Ligases - genetics
Variation (Genetics)
Abstract
Numerous linkage studies have indicated chromosome 18q21-22 as a locus of importance for blood pressure regulation. This locus harbors the neural precursor cell expressed developmentally downregulated 4-like (NEDD4L) gene, which is instrumental for the regulation of the amiloride-sensitive epithelial sodium channel (ENaC). In a linkage study of 16 markers (including two single nucleotide polymorphism markers located within the NEDD4L gene) on chromosome 18 between 70-104 cM and ambulatory blood pressure (ABP), in 118 families, the strongest evidence of linkage was found for 24 h and day-time systolic ABP at the NEDD4L locus (82.25 cM) (P=0.0014). In a large population sample (n=4001), we subsequently showed that a NEDD4L gene variant (rs4149601), which by alternative splicing leads to varying expression of a functionally crucial C2 domain, was associated with diastolic blood pressure (DBP) (P=0.03) and DBP progression over time (P=0.04). A genotype combination of the rs4149601 and an intronic NEDD4L marker (rs2288774) was associated with systolic blood pressure (SBP) (P=0.01), DBP (P=0.04), and progression of both SBP (P=0.03) and DBP (P=0.05) over time. A quantitative transmission disequilibrium test in the family material of the rs4149601 supported this NEDD4L variant as being at least partially causative of the linkage result. In conclusion, our findings suggest that the chromosome 18 linkage peak at 82.25 cM is explained by genetic NEDD4L variation affecting cross-sectional and longitudinal blood pressure, possibly as a consequence of altered NEDD4L interaction with ENaC.
PubMed ID
16788695 View in PubMed
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The 24-hour pulse wave velocity, aortic augmentation index, and central blood pressure in normotensive volunteers.

https://arctichealth.org/en/permalink/ahliterature104335
Source
Vasc Health Risk Manag. 2014;10:247-51
Publication Type
Article
Date
2014
Author
Tatyana Y Kuznetsova
Viktoria A Korneva
Evgeniya N Bryantseva
Vitaliy S Barkan
Artemy V Orlov
Igor N Posokhov
Anatoly N Rogoza
Author Affiliation
Faculty of Medicine, Petrozavodsk State University, Petrozavodsk, Russia.
Source
Vasc Health Risk Manag. 2014;10:247-51
Date
2014
Language
English
Publication Type
Article
Keywords
Adult
Aged
Algorithms
Blood pressure
Blood Pressure Monitoring, Ambulatory - standards
Circadian Rhythm
Diastole
Female
Healthy Volunteers
Heart rate
Humans
Male
Middle Aged
Predictive value of tests
Pulse Wave Analysis - standards
Reference Values
Russia
Signal Processing, Computer-Assisted
Systole
Time Factors
Vascular Stiffness
Abstract
The purpose of this study was to examine the pulse wave velocity, aortic augmentation index corrected for heart rate 75 (AIx@75), and central systolic and diastolic blood pressure during 24-hour monitoring in normotensive volunteers. Overall, 467 subjects (206 men and 261 women) were recruited in this study. Participants were excluded from the study if they were less than 19 years of age, had blood test abnormalities, had a body mass index greater than 2 7.5 kg/m(2), had impaired glucose tolerance, or had hypotension or hypertension. Ambulatory blood pressure monitoring (ABPM) with the BPLab(®) device was performed in each subject. ABPM waveforms were analyzed using the special automatic Vasotens(®) algorithm, which allows the calculation of pulse wave velocity, AIx@75, central systolic and diastolic blood pressure for "24-hour", "awake", and "asleep" periods. Circadian rhythms and sex differences in these indexes were identified. Pending further validation in prospective outcome-based studies, our data may be used as preliminary diagnostic values for the BPLab ABPM additional index in adult subjects.
Notes
Cites: J Invasive Cardiol. 2009 Jun;21(6):270-719494403
Cites: Hypertens Res. 2012 Oct;35(10):980-722622282
Cites: Am J Hypertens. 2010 Feb;23(2):180-519959999
Cites: J Hypertens. 2013 Jul;31(7):1281-35723817082
Cites: Vasc Health Risk Manag. 2011;7:649-5622140314
Cites: Age (Dordr). 2013 Dec;35(6):2345-5523319362
Cites: Hypertension. 2013 Jun;61(6):1148-923630945
Cites: Hypertension. 2013 Jun;61(6):1168-7623630950
Cites: J Hypertens. 2013 Sep;31(9):1731-6824029863
Cites: Eur Heart J. 2010 Oct;31(19):2338-5020530030
PubMed ID
24812515 View in PubMed
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The 24-hour rhythmicity of birth. A populational study.

https://arctichealth.org/en/permalink/ahliterature65725
Source
Acta Obstet Gynecol Scand. 1983;62(1):31-6
Publication Type
Article
Date
1983
Author
E. Glattre
T. Bjerkedal
Source
Acta Obstet Gynecol Scand. 1983;62(1):31-6
Date
1983
Language
English
Publication Type
Article
Keywords
Circadian Rhythm
Delivery, Obstetric
Extraction, Obstetrical
Female
Humans
Labor, Induced
Norway
Pregnancy
Abstract
The incidence of birth has been determined for each hour of the day for all births in Norway in 1968-1977 of fetuses of 16 weeks of gestation or older, with resident mothers. The 24-hour incidence variations of births (A) with spontaneous onset and parturition, (B) with spontaneous onset, but delivery intervention, (C) with induced onset, but spontaneous birth, and (D) with induced onset and delivery intervention, are all different. It is shown that the curve for the hourly incidence of birth category A coincides very well with previous results of other workers. When multiple births are excluded and category A is split into first and later births in Northern and Southern Norway, dissimilarities arise between the respective 24-hour incidence curves. The results indicate that the 24-hour birth incidence variation has an underlying endogenous, circadian rhythmicity - possibly synchronized by the sun. The 24-hour rhythmicities of birth categories B, C and D seem to be purely exogenous - reflecting the working activity rhythms of hospital obstetricians and midwives.
PubMed ID
6858620 View in PubMed
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[24-h profile of arterial pressure in hypertensive patients working in rotatory teams in conditions of Far North (Tyumen Region)]

https://arctichealth.org/en/permalink/ahliterature5525
Source
Ter Arkh. 2005;77(1):41-5
Publication Type
Article
Date
2005
Author
L I Gapon
N P Shurkevich
A S Vetoshkin
Source
Ter Arkh. 2005;77(1):41-5
Date
2005
Language
Russian
Publication Type
Article
Keywords
Adult
Arctic Regions
Autonomic Nervous System - physiopathology
Blood Pressure - physiology
Blood Pressure Monitoring, Ambulatory
Circadian Rhythm - physiology
Cold Climate
Comparative Study
English Abstract
Expeditions
Female
Humans
Hypertension - physiopathology
Male
Middle Aged
Russia
Abstract
AIM: To specify a 24-h profile of arterial pressure (AP) in hypertensive patients working in duty regime in the Far North (Tyumen Region). MATERIAL AND METHODS: AP parameters were studied in 155 males aged 25-59 with hypertension of stage I, II who were employed for duty work in the Far North areas and 38 control patients with hypertension stage I, II living in a moderate climatic zone (Tyumen). The groups were comparable by gender, age, duration of hypertension, office systolic and diastolic AP (SAP and DAP). All the patients have undergone 24-h monitoring of AP with assessment of basic mean parameters. RESULTS: The study group patients had scare symptoms and lower mean 24-h SAP, but high AP variability, high DAD as reflection of more significant structural changes of vessels and special functioning of the autonomic nervous system in the North. Mean 24-h AP showed more unfavourable changes in hypertensive subjects who had flight from Yamburg-Moscow-Yamburg. CONCLUSION: The data of the study dictate the necessity to develop a differentiated risk strategy for health promotion, prevention and treatment of hypertension in those who work in the North of Tyumen Region in duty regime.
PubMed ID
15759453 View in PubMed
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24-h sheltering behaviour of individually kept horses during Swedish summer weather.

https://arctichealth.org/en/permalink/ahliterature276827
Source
Acta Vet Scand. 2015 Aug 20;57:45
Publication Type
Article
Date
Aug-20-2015
Author
Elke Hartmann
Richard J Hopkins
Claudia von Brömssen
Kristina Dahlborn
Source
Acta Vet Scand. 2015 Aug 20;57:45
Date
Aug-20-2015
Language
English
Publication Type
Article
Keywords
Animal Husbandry - methods - physiology
Animal Welfare - methods - physiology
Animals - methods - physiology
Behavior, Animal - methods - physiology
Circadian Rhythm - methods - physiology
Female - methods - physiology
Horses - methods - physiology
Housing, Animal - methods - physiology
Insects - methods - physiology
Male - methods - physiology
Seasons - methods - physiology
Sweden - methods - physiology
Weather - methods - physiology
Abstract
Provision of shelter for horses kept on summer pasture is rarely considered in welfare guidelines, perhaps because the benefits of shelter in warm conditions are poorly documented scientifically. For cattle, shade is a valued resource during summer and can mitigate the adverse effects of warm weather on well-being and performance. We found in a previous study that horses utilized shelters frequently in summer. A shelter with a roof and closed on three sides (shelter A) was preferred and can reduce insect pressure whereas a shelter with roof and open on three sides was not utilized. However, shelter A restricts the all-round view of a horse, which may be important for horses as flight animals. Therefore, we studied whether a shelter with roof, where only the upper half of the rear wall was closed (shelter B), would be utilized while maintaining insect protection properties and satisfying the horses' sense for security. A third shelter was offered with walls but no roof (shelter C) to evaluate whether the roof itself is an important feature from the horse's perspective. Eight Warmblood horses were tested each for 2?days, kept individually for 24?h in two paddocks with access to shelters A and B, or shelters A and C, respectively. Shelter use was recorded continuously during the night (1800-2400?h, 0200-0600?h) and the following day (0900-1600?h), and insect defensive behaviour (e.g., tail swish) in instantaneous scan samples at 5-min intervals during daytime.
Seven horses used both shelters A and B, but when given the choice between shelters A and C, shelter C was scarcely visited. There was no difference in duration of shelter use between night (105.8???53.6?min) and day (100.8???53.8, P?=?0.829). Daytime shelter use had a significant effect on insect defensive behaviours (P?=?0.027). The probability of performing these behaviours was lowest when horses used shelter A compared to being outside (P?=?0.038).
Horses only utilized shelters with a roof whilst a shelter with roof and closed on three sides had the best potential to lower insect disturbance during daytime in summer.
Notes
Cites: Am J Trop Med Hyg. 1972 Jul;21(4):487-915050097
Cites: Comp Biochem Physiol A Comp Physiol. 1975 Oct 1;52(2):343-9240591
Cites: Vet Clin North Am Equine Pract. 1990 Aug;6(2):355-722202497
Cites: J Anim Sci. 1999 Aug;77(8):2065-7210461983
Cites: J Anim Sci. 2008 Jan;86(1):226-3417911236
Cites: Proc Biol Sci. 2010 Jun 7;277(1688):1643-5020129982
Cites: Int J Parasitol. 2013 Jun;43(7):555-6323500071
Cites: J Anim Sci. 2013 Dec;91(12):5926-3624126269
Cites: J Anim Sci. 2014 Apr;92(4):1708-1724492578
Cites: J Anim Sci. 2015 Feb;93(2):802-1026020760
PubMed ID
26289447 View in PubMed
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[57-year old night nurse: Mondays following a week of night duty are a complete waste].

https://arctichealth.org/en/permalink/ahliterature247179
Source
Sygeplejersken. 1979 May 16;79(19):7
Publication Type
Article
Date
May-16-1979

Abnormal diurnal rhythm of urine output following renal transplantation: the impact of blood pressure and diuretics.

https://arctichealth.org/en/permalink/ahliterature139130
Source
Transplant Proc. 2010 Nov;42(9):3529-36
Publication Type
Article
Date
Nov-2010
Author
K. Alstrup
C. Graugaard-Jensen
S. Rittig
K A Jørgensen
Author Affiliation
Department of Nephrology, Aarhus University Hospital, Skejby, Denmark. karenalstrup@dadlnet.dk
Source
Transplant Proc. 2010 Nov;42(9):3529-36
Date
Nov-2010
Language
English
Publication Type
Article
Keywords
Adult
Aged
Antihypertensive Agents - therapeutic use
Blood Pressure - drug effects
Case-Control Studies
Chi-Square Distribution
Circadian Rhythm
Denmark
Diuretics - therapeutic use
Drinking
Female
Humans
Kidney Transplantation - adverse effects
Male
Middle Aged
Osmolar Concentration
Polyuria - drug therapy - etiology - physiopathology
Prevalence
Time Factors
Treatment Outcome
Urination - drug effects
Urodynamics - drug effects
Young Adult
Abstract
Nocturnal polyuria is the excretion at night of an excessive volume of urine. A major problem following renal transplantation is an abnormal diurnal rhythmicity in urine output. The purpose of this study was to elucidate the prevalence of nocturnal polyuria among renal transplant recipients in the early period after transplantation as well as at least 1 year after transplantation. We aimed to explore possible pathophysiological mechanisms behind nocturnal polyuria in this group of patients, focusing on the impact of blood pressure and medication.
Seventeen recently transplanted patients 17 late transplant recipients, and 17 healthy controls were included in the study. Voiding habits were assessed by completion of a frequency-volume chart recording all fluid intakes and voiding. A concomitant 24-hour blood pressure profile was obtained in all.
Renal transplant recipients had a high prevalence of nocturnal polyuria (74%) and a disturbed blood pressure profile with a lack of appropriate nocturnal dipping (P
Notes
Comment In: J Urol. 2012 Mar;187(3):96422325519
PubMed ID
21094810 View in PubMed
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[A complex of blood-sucking mosquitoes (Diptera, Culicidae) in the focus of West Nile fever in the Volgograd Region. III. Species feeding on birds and man and the rhythms of their nocturnal activity].

https://arctichealth.org/en/permalink/ahliterature158763
Source
Med Parazitol (Mosk). 2007 Oct-Dec;(4):37-43
Publication Type
Article
Author
Iu V Lopatina
O V Bezzhonova
M V Fedorova
T V Bulgakova
A E Platonov
Source
Med Parazitol (Mosk). 2007 Oct-Dec;(4):37-43
Language
Russian
Publication Type
Article
Keywords
Animals
Chickens
Circadian Rhythm
Culicidae - classification
Disease Vectors - classification
Ecosystem
Humans
Insect Bites and Stings - classification
Population Density
Risk factors
Russia - epidemiology
Seasons
Species Specificity
West Nile Fever - prevention & control
Abstract
The rate and nocturnal rhythm of mosquito attacks of birds and human beings were studied in the open biotopes of Volgograd and its vicinity in 2004. Thirteen and 11 species of the subfamily Culicinae were collected under the Berezantsev bell and from the traps containing a chicken (a hen), respectively; of them 9 species were common. The mosquitoes of an Anopheles maculipennis complex were caught in a small portion to the traps of both types. Most species of Aedes were highly anthropophilic, showed the minimum activity at night and their abundance considerably decreased by the early transmission period. Among the species that were active during the transmission period, Ae. vexans, Coq. richiardii, and Cx. modestus more intensively attacked a human being than birds and Cx. pipiens was frequently attracted into the hen traps. The attraction of each species of the caught varied during the transmission period. The maximum attacks of Cx. modestus and Cx. pipiens on man and birds coincide and those of Coq. Richiardii and Cx. pipiens on man was observed earlier than on birds. A possible role of mosquitoes of different species in the epizootic and epidemiological processes is discussed.
PubMed ID
18277420 View in PubMed
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637 records – page 1 of 64.