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Maternal waterpipe smoke exposure and the risk of asthma and allergic diseases in childhood: A post hoc analysis 2015 Balamand University, Beirut, Lebanon (Pulmonology Department).; Lebanese University, Hadath, Lebanon (Faculty of Pharmacy). pascalesalameh1@hotmail.com.
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Print(0)
Ref Type
Journal Article
Periodical, Full
International journal of occupational medicine and environmental health
Periodical, Abbrev.
Int.J.Occup.Med.Environ.Health
Pub Date Free Form
Volume
28
Issue
1
Start Page
147
Other Pages
156
Notes
CI: This work is available in Open Access model and licensed under a CC BY-NC 3.0 PL license.; JID: 9437093; OTO: NOTNLM; ppublish
Place of Publication
Poland
ISSN/ISBN
1896-494X; 1232-1087
Accession Number
PMID: 26159955
Language
eng
SubFile
Journal Article; IM
DOI
10.13075/ijomeh.1896.00316 [doi]
Output Language
Unknown(0)
PMID
26159955
Abstract
INTRODUCTION: This analysis was conducted with the objective of evaluating association between waterpipe passive smoking exposure and asthma, and allergies among Lebanese children. MATERIAL AND METHODS: Data were taken from a crosssectional study on children from public and private schools. A sample of 22 schools participated in the study, where standardized written core questionnaires were distributed. From 5 to 12-year-old students filled in the questionnaires at home, while 13-14-year-old students filled it in in the class. In total, 5522 children were evaluated for the prevalence of asthma, allergic rhinitis and atopic eczema, and their associated factors, including waterpipe exposure due to parents' smoking. RESULTS: The descriptive results of parental smoking were, as follows: among mothers: 1609 (29%) mothers smoked cigarettes, 385 (7%) smoked waterpipe and 98 (1.8%) smoked both; among fathers: 2449 (44.2%) smoked cigarettes, 573 (10.3%) smoked waterpipe and 197 (3.5%) smoked both. Maternal waterpipe smoking was significantly and moderately associated with allergic diseases (p
Descriptors
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Database
Publisher
Data Source
Authors
Waked,M., Salameh,P.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Matrix Effect on the Spray Drying Nanoencapsulation of Lippia sidoides Essential Oil in Chitosan-Native Gum Blends 2016 Department of Analytical and Physical Chemistry, Federal University of Ceara, UFC, Fortaleza-CE, Brazil.; Department of Analytical and Physical Chemistry, Federal University of Ceara, UFC, Fortaleza-CE, Brazil.; Department of Analytical and Physical Chemi
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Print(0)
Ref Type
Journal Article
Periodical, Full
Planta Medica
Periodical, Abbrev.
Planta Med.
Pub Date Free Form
25-May
Volume
Issue
Start Page
Other Pages
Notes
LR: 20160525; CI: Georg Thieme Verlag KG Stuttgart . New York.; JID: 0066751; 2016/05/25 [epublish]; aheadofprint
Place of Publication
ISSN/ISBN
1439-0221; 0032-0943
Accession Number
PMID: 27224269
Language
ENG
SubFile
JOURNAL ARTICLE
DOI
10.1055/s-0042-107470 [doi]
Output Language
Unknown(0)
PMID
27224269
Abstract
Essential oils have many applications in the pharmaceutical, chemical, and food fields, however, their use is limited to the fact that they are very labile, requiring their a priori encapsulation, aiming to preserve their properties.This work reports on the preparation of chitosan-gum nanoparticles loaded with thymol containing Lippia sidoides essential oil, using exudates of Anacardium Occidentale (cashew gum), Sterculia striata (chicha gum), and Anadenanthera macrocarpa trees (angico gum). Nanoparticles were produced by spray drying an emulsion of L. sidoides essential oil and aqueous solution of gums with different chitosan : gum ratios. Samples were characterized by FTIR and UV/VIS spectroscopy, particle size, volume distribution, and zeta potential. The FTIR spectrum showed the main signals of chitosan and the gums. Data obtained revealed that the samples had sizes in the nano range, varying from 17 nm to 800 nm. The zeta potential varied from + 30 mV to - 40 mV. Nanoparticle loading values varied from 6.7 % to 15.6 %, with an average encapsulating efficiency of 62 %, where the samples with high ratios of cashew gum and chicha gum presented high oil loading values. The data revealed that both the chitosan : gum ratio and polysaccharide characteristics play major roles in nanoencapsulation processes.
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Database
Publisher
Data Source
Authors
Paula,H.C., Oliveira,E.F., Carneiro,M.J., de Paula,R.C.
Original/Translated Title
URL
Date of Electronic
20160525
PMCID
Editors
MCH released in a novel pheromone dispenser prevents spruce beetle, Dendroctonus rufipennis (Coleoptera: Scolytidae), attacks in south-central Alaska. 2003 Holsten, E.H., U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, 3301 "C" St., Ste 200, Anchorage, Alaska 99503, USA.
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Print(0)
Ref Type
Journal Article
Periodical, Full
Journal of economic entomology
Periodical, Abbrev.
J.Econ.Entomol.
Pub Date Free Form
/
Volume
96
Issue
1
Start Page
31
Other Pages
34
Notes
Place of Publication
ISSN/ISBN
0022-0493
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
Field tests of 3-methyl-2-cyclohexen-1-one (MCH), the antiaggregation pheromone of the spruce beetle, Dendroctonus rufipennis Kirby, were conducted in south-central Alaska in stands of Lutz spruce, Picea x lutzii Little, and Sitka spruce, P. sitchensis (Bong.) Carr. The deployment of MCH in a novel releaser significantly reduced trap catches and spruce beetle attacks on standing live spruce by 96 and 87%, respectively. The results of this study demonstrate the first successful field test of MCH in Alaska for the prevention of spruce beetle attacks on standing, live spruce.
Descriptors
3 methyl 2 cyclohexen 1 one, 3-methyl-2-cyclohexen-1-one, cyclohexane derivative, pheromone, animal, article, beetle, biological pest control, devices, spruce, United States
Links
Book Title
Database
MEDLINE
Publisher
Data Source
Embase
Authors
Holsten,E. H., Shea,P. J., Borys,R. R.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Measurement of 16 polycyclic aromatic hydrocarbons in narghile waterpipe tobacco smoke 2008
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Food Chem Toxicol
Periodical, Abbrev.
Food Chem.Toxicol.
Pub Date Free Form
Volume
46
Issue
5
Start Page
1582
Other Pages
90
Notes
ID: 18308445
Place of Publication
ISSN/ISBN
Accession Number
Language
en
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
An analytical method for the determination of 16 polycyclic aromatic hydrocarbons (PAHs) in the mainstream of narghile smoke is presented. The smoke was generated using a digital waterpipe smoking machine connected to the mouthpiece of a narghile that was loaded with 10 g of a popular flavored tobacco and kept alight with quick-light charcoal briquettes that are commonly used for this purpose. A standard smoking regimen consisting of 171 puffs of 530 ml volume and 2.6s duration spaced 17s apart was used, and the smoke condensates were collected on glass fiber filters. PAHs were extracted with toluene assisted by sonication. For purification, the extract was passed through a silica cartridge and eluted with hexane. The eluent was preconcentrated, reconstituted in acetonitrile, and analyzed using a GC-MS-SICP method. The method showed good selectivity, repeatability, accuracy and sensitivity. The limit of detection ranged from 15 to 96 ng for benzoa]pyrene and indeno1,2,3-cd]pyrene, respectively. It was found that a single narghile smoking session delivers approximately 50 times the quantities of carcinogenic 4- and 5-membered ring PAHs as a single 1R4F cigarette smoked using the FTC protocol. The pattern of PAH concentrations suggested that formation pathways differ from those of the cigarette, possibly reflecting the differing combustion conditions of the two smoking devices.
Descriptors
Plastics/chemistry, Polycyclic Hydrocarbons, Aromatic/analysis, Smoke/analysis, Tobacco/chemistry, Calibration, Carcinogens/analysis, Chromatography, Gas, Gas Chromatography-Mass Spectrometry, Indicators and Reagents, Reference Standards, Reproducibility of Results
Links
http://dx.doi.org/10.1016/j.fct.2007.12.028
Book Title
Database
MEDLINE; http://www.globalhealthlibrary.net/
Publisher
Data Source
Authors
Sepetdjian,Elizabeth, Shihadeh,Alan, Saliba,Najat A.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Measurement of 16 volatile organic compounds in restaurant air contaminated with environmental tobacco smoke 2008 Finnish Institute of Occupational Health, Topeliuksenkatu 41 a A, Helsinki, Finland. sinikka.vainiotalo@ttl.fi
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Environmental research
Periodical, Abbrev.
Environ.Res.
Pub Date Free Form
Nov
Volume
108
Issue
3
Start Page
280
Other Pages
288
Notes
JID: 0147621; 0 (Organic Chemicals); 0 (Tobacco Smoke Pollution); 2008/01/11 [received]; 2008/05/27 [revised]; 2008/07/24 [accepted]; 2008/09/17 [aheadofprint]; ppublish
Place of Publication
United States
ISSN/ISBN
1096-0953; 0013-9351
Accession Number
PMID: 18801480
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1016/j.envres.2008.07.020 [doi]
Output Language
Unknown(0)
PMID
18801480
Abstract
Tobacco smoke-related air pollutant levels were studied in ten Finnish restaurants. Markers of tobacco smoke were measured together with other compounds typical of tobacco smoke and indoor air. The measurements were carried out at stationary sampling points in smoking and non-smoking areas of the restaurants in 2005-2006, when at least half of the service area had to be non-smoking according to the Finnish Tobacco Act. The average concentrations (geometric mean, microg/m3) of the 16 airborne contaminants measured in the smoking area were: nicotine 18.1; toluene 10.6; isoprene 10.2; m,p-xylene 5.0; limonene 4.8; benzene 3.3; furfuryl aldehyde 3.2; 1,3-butadiene 2.7; 3-ethenylpyridine (3-EP) 2.5; phenol 2.1; ethyl benzene 1.7; pyridine 1.6; o-xylene 1.5; 3-picoline 1.4; styrene 1.2; and naphthalene 0.45. A good correlation (r=0.90-0.99, p<0.001) was obtained between tobacco-specific markers (3-EP and nicotine) and 1,3-butadiene, isoprene, pyridine, furfuryl aldehyde, 3-picoline, phenol, and styrene. A poor or no correlation (r=0.19-0.60) was obtained between 3-EP or nicotine and the rest of the compounds. The average concentrations of all compounds were significantly lower in the non-smoking area than in the smoking area (p<0.05). In the non-smoking area, the average concentration of 3-EP was 0.35 microg/m3 and that of nicotine 1.6 microg/m3. In three restaurants, the area design and ventilation were effective: the average level of 3-EP in the non-smoking section was <3% from that in the smoking section. In the other restaurants, tobacco smoke was spreading more freely and the corresponding value was 14-76%. A sensitive method was applied for the measurement of airborne 1,3-butadiene. The air samples were collected into Carbopack X adsorption tubes and analysed by thermal desorption/gas chromatography/mass selective detection. The precision of the method was 4.2% (at 100 ng/sample) and the limit of quantification 0.02 microg/m3.
Descriptors
Air Pollution, Indoor/analysis, Environmental Monitoring/statistics & numerical data, Finland, Gas Chromatography-Mass Spectrometry, Organic Chemicals/analysis, Restaurants, Tobacco Smoke Pollution/analysis, Volatilization
Links
Book Title
Database
Publisher
Data Source
Authors
Vainiotalo,S., Vaananen,V., Vaaranrinta,R.
Original/Translated Title
URL
Date of Electronic
20080917
PMCID
Editors
Measurement of BTEX (benzene, toluene, ethybenzene, and xylene) levels at urban and semirural areas of Algiers City using passive air samplers 2012 Laboratory of Sciences and Environmental Techniques, National Polytechnic School of Algiers, 10, Hacen Badi Ave. BP 182, El Harrach, 16200 Algiers, Algeria. y_kerchic@hotmail.com
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Journal of the Air & Waste Management Association (1995)
Periodical, Abbrev.
J.Air Waste Manag.Assoc.
Pub Date Free Form
Dec
Volume
62
Issue
12
Start Page
1370
Other Pages
1379
Notes
LR: 20140731; JID: 9503111; 0 (Air Pollutants); 0 (Benzene Derivatives); 0 (Vehicle Emissions); 0 (Xylenes); 3FPU23BG52 (Toluene); J64922108F (Benzene); L5I45M5G0O (ethylbenzene); ppublish
Place of Publication
United States
ISSN/ISBN
1096-2247; 1096-2247
Accession Number
PMID: 23362756
Language
eng
SubFile
Journal Article; IM
DOI
Output Language
Unknown(0)
PMID
23362756
Abstract
The study presents the levels of air pollution by aromatic organic compounds BTEX (benzene, toluene, ethylbenzene, o-, m-, and p-xylenes) in the city of Algiers. The sampling was carried out using Radiello passive sampler. Three sampling campaigns were carried out in roadside, tunnel, urban background, and semirural sites in Algiers. In order to determine the diurnal mean levels of air pollution by BTEX to which people are exposed, a modified passive sampler was used for the first time. In addition, monitoring of pollution inside vehicles was also made. In the spring of 2009, more than 27 samplings were carried out. In the background and road traffic sites the Radiello sampler was exposed for 7 days, whereas the time exposure was reduced to 1 day in the case of the vehicle as well as the tunnel. The results indicate that average benzene concentrations in the roadside and inside vehicle exceed largely the limit value of 5 microg m(-3) established by the European Community (EC). On the other hand, it has been noticed that the concentration levels of other BTEX are relatively high. Also, in order to identify the origin of emission sources, ratios and correlations between the BTEX species have been highlighted. This study shows that road traffic remains the main source of many local emission in Algiers. IMPLICATIONS: The vehicle fleet in Algeria is growing rapidly since the 1990s following economic growth and is responsible for the increasing air pollution in large cities. Because there are no data collection of BTEX carried out by national air quality network, all environmental and transportation policies are based on European emissions standards, but national emission standards are currently not in place. This work will contribute to the analysis of real emissions of BTEX in Algiers, for the development of management and for assessment of population exposure variation depending on the location in the city of Algiers.
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Kerchich,Y., Kerbachi,R.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Measurement of fine particles and smoking activity in a statewide survey of 36 California Indian casinos 2011 Department of Civil and Environmental Engineering, Stanford University, Stanford, California 94305, USA.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Journal of exposure science & environmental epidemiology
Periodical, Abbrev.
J.Expo.Sci.Environ.Epidemiol.
Pub Date Free Form
Jan-Feb
Volume
21
Issue
1
Start Page
31
Other Pages
41
Notes
LR: 20141204; JID: 101262796; 0 (Air Pollutants); 0 (Particulate Matter); 0 (Tobacco Smoke Pollution); OID: NLM: PMC3007589; 2010/02/17 [aheadofprint]; ppublish
Place of Publication
United States
ISSN/ISBN
1559-064X; 1559-0631
Accession Number
PMID: 20160761
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1038/jes.2009.75 [doi]
Output Language
Unknown(0)
PMID
20160761
Abstract
Despite California's 1994 statewide smoking ban, exposure to secondhand smoke (SHS) continues in California's Indian casinos. Few data are available on exposure to airborne fine particles (PM(2).(5)) in casinos, especially on a statewide basis. We sought to measure PM(2).(5) concentrations in Indian casinos widely distributed across California, exploring differences due to casino size, separation of smoking and non-smoking areas, and area smoker density. A selection of 36 out of the 58 Indian casinos throughout California were each visited for 1-3 h on weekend or holiday evenings, using two or more concealed monitors to measure PM(2).(5) concentrations every 10 s. For each casino, the physical dimensions and the number of patrons and smokers were estimated. As a preliminary assessment of representativeness, we also measured eight casinos in Reno, NV. The average PM(2).(5) concentration for the smoking slot machine areas (63 mug/m(3)) was nine times as high as outdoors (7 mug/m(3)), whereas casino non-smoking restaurants (29 mug/m(3)) were four times as high. Levels in non-smoking slot machine areas varied: complete physical separation reduced concentrations almost to outdoor levels, but two other separation types had mean levels that were 13 and 29 mug/m(3), respectively, higher than outdoors. Elevated PM(2).(5) concentrations in casinos can be attributed primarily to SHS. Average PM(2).(5) concentrations during 0.5-1 h visits to smoking areas exceeded 35 mug/m(3) for 90% of the casino visits.
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Jiang,R.T., Cheng,K.C., Acevedo-Bolton,V., Klepeis,N.E., Repace,J.L., Ott,W.R., Hildemann,L.M.
Original/Translated Title
URL
Date of Electronic
20100217
PMCID
PMC3007589
Editors
Measurement of indoor smoke pollution in public places in Hungary 2010 Semmelweis Egyetem, Altalanos Orvostudomanyi Kar, Radiologiai es Onkoterapias Klinika, Budapest. tarnoki4@gmail.com
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Orvosi hetilap
Periodical, Abbrev.
Orv.Hetil.
Pub Date Free Form
7-Feb
Volume
151
Issue
6
Start Page
213
Other Pages
219
Notes
JID: 0376412; 0 (Tobacco Smoke Pollution); ppublish
Place of Publication
Hungary
ISSN/ISBN
0030-6002; 0030-6002
Accession Number
PMID: 20123656
Language
hun
SubFile
English Abstract; Journal Article; IM
DOI
10.1556/OH.2010.28797 [doi]
Output Language
Unknown(0)
PMID
20123656
Abstract
To compare the levels of indoor air pollution found in a sample of smoking and non-smoking public locations in Hungary. METHODS: Ambient air of 6 pubs, 5 restaurants, 11 cafes, and 20 other locations in Budapest and Zalakaros, Hungary, between January and August 2008, was studied, and concentration of particulate matter less than 2.5 microns in diameter (PM2.5) was assessed with TSI SidePak AM510 Personal Aerosol Monitor. RESULTS: In 26 places where smoking was observed, the average PM 2.5 level was 102.3 microg/m3 [range: 3-487 microg/m3]; compared to 5.1 microg/m 3 [range: 0-28 microg/m3] in the 16 places where smoking was observed. CONCLUSIONS: Levels of indoor fine particle air pollution measured in smoking public locations in Hungary were 18 times higher than the levels in non-smoking places and exceeded the harmful levels declared by the World Health Organization and US Environmental Protection Agency.
Descriptors
Air Pollution, Indoor/analysis, Environmental Exposure/statistics & numerical data, Humans, Hungary/epidemiology, Occupational Exposure/statistics & numerical data, Restaurants, Smoking/epidemiology, Tobacco Smoke Pollution
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Book Title
Database
Publisher
Data Source
Authors
Tarnoki,D. L., Tarnoki,A. D., Hyland,A., Travers,M. J., Dobson,K., Mechtler,L., Cummings,K. M.
Original/Translated Title
Zart kozossegi helyek dohanyfust-koncentraciojanak merese Magyarorszagon
URL
Date of Electronic
PMCID
Editors
Measurement-specific quality-of-life satisfaction during the menopause in an Arabian Gulf country 2000 Department of Community Medicine, Faculty of Medicine and Health Sciences, United Arab Emirates University, PO Box 17666, Al Ain, United Arab Emirates.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Climacteric : the journal of the International Menopause Society
Periodical, Abbrev.
Climacteric
Pub Date Free Form
Mar
Volume
3
Issue
1
Start Page
43
Other Pages
49
Notes
LR: 20151119; JID: 9810959; ppublish
Place of Publication
United States
ISSN/ISBN
1369-7137; 1369-7137
Accession Number
PMID: 11910609
Language
eng
SubFile
Journal Article; IM
DOI
Output Language
Unknown(0)
PMID
11910609
Abstract
OBJECTIVE: The aim of this study was to use an instrument, the menopause-specific quality-of-life satisfaction questionnaire for the postmenopausal period, in the United Arab Emirates (UAE). DESIGN: A cross-sectional descriptive study was used to generate menopause symptoms experienced by Arabian Gulf women. Measurement-specific quality-of-life satisfaction questionnaires were used and face-to-face interviews were performed. SETTING: The study was based in primary health-care clinics in Al Ain City, Sharjah and Dubai Emirates, UAE. SUBJECTS: A multistage sampling design was used, and a representative sample of 450 UAE females aged 45 years and above were included during January-April 1999. RESULTS: Of the 450 women living in both urban and rural areas, 390 women agreed to participate (86.7%) and responded to the study. The mean age and standard deviation (SD) of the subjects was 56.5 +/- 6.6 years, and the median age of natural menopause in the present study was 48 years (mean +/- SD 48.4 +/- 3.8). The rate of consanguinous marriages in the sample was found to be 47.2%. The most common disease was found to be diabetes mellitus (10.3%), followed by osteoarthritis (7.7%), hypertension (7.2%) and asthma (6.2%), but the majority of subjects (68.7%) had no specific disease. Out of 29 possible symptoms, the mean number of symptoms was 7.57 (range 0-24). The most frequent symptom was 'aches in the back of the neck or head' at 46.4% followed by 'aches in the muscles/joints' at 34.6%. The least reported symptom was 'facial hair' at 15.9%. Increasing education resulted in more symptoms reported, and increasing parity resulted in fewer symptoms reported. In the present study, it was found that employed women experienced more symptoms and disorders. Of the total sample, 28.5% of the subjects reported no symptoms. In the four domains, 69% reported physical symptoms, 58.7% reported psychosocial symptoms, 40% reported vasomotor symptoms and 37.9% reported sexual symptoms. Spearman's rank correlation coefficient indicated that there is highly statistically significant concordance between the four domains (p < 0.01). CONCLUSION: The present study showed that menopause-related symptoms in UAE women are fewer and of less severity than in Western women. The postmenopausal women, despite a continued decline in estrogen levels, reported few symptoms as part of a normal life stage, suggesting that they were able to cope with stress.
Descriptors
Asthma/epidemiology, Consanguinity, Diabetes Mellitus/epidemiology, Educational Status, Female, Headache/epidemiology, Hot Flashes, Humans, Hypertension/epidemiology, Joints, Libido, Menopause, Middle Aged, Neck, Osteoarthritis/epidemiology, Pain/epidemiology, Parity, Quality of Life, Rural Population, Sexual Dysfunction, Physiological/epidemiology, Surveys and Questionnaires, Sweating, United Arab Emirates/epidemiology, Urban Population
Links
Book Title
Database
Publisher
Data Source
Authors
Bener,A., Rizk,D. E., Shaheen,H., Micallef,R., Osman,N., Dunn,E. V.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Measurements of vascular function using strain-gauge plethysmography: technical considerations, standardization, and physiological findings 2004 Department of Kinesiology, Louisiana State University, Baton Rouge, LA 70803, USA. mwelsch@lsu.edu
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
American journal of physiology.Heart and circulatory physiology
Periodical, Abbrev.
Am.J.Physiol.Heart Circ.Physiol.
Pub Date Free Form
Jan
Volume
286
Issue
1
Start Page
H99
Other Pages
H107
Notes
LR: 20041117; JID: 100901228; CIN: Am J Physiol Heart Circ Physiol. 2004 Aug;287(2):H981. PMID: 15277210; 2003/09/25 [aheadofprint]; ppublish
Place of Publication
United States
ISSN/ISBN
0363-6135; 0363-6135
Accession Number
PMID: 14512279
Language
eng
SubFile
Journal Article; IM
DOI
10.1152/ajpheart.00529.2003 [doi]
Output Language
Unknown(0)
PMID
14512279
Abstract
The main purpose of the present study was to examine the relationships between measures of fitness [estimated peak oxygen consumption (V(O2) peak) and handgrip strength] and forearm vascular function in 55 young (22.6 +/- 3.5 yr) adults. In addition, the present study considered methodological and technical aspects regarding the examination of the venous system using mercury in-Silastic strain-gauge plethysmography (MSGP). Forearm venous capacitance and outflow were examined using five different [7, 14, 21, 28, and 35 mmHg < diastolic blood pressure (DBP)] venous occlusion pressures and after a 5- and 10-min period of venous occlusion. A pressure of 7 mmHg < DBP and a period of 10 min venous occlusion produced the greatest (P < 0.05) venous capacitance and outflow, without altering arterial indexes. Reproducibility of forearm arterial and venous indexes were evaluated at rest and after 5 min of upper arm arterial occlusion at 240 mmHg on three different occasions within 10 days with the interclass correlation coefficient ranging from 0.70 and 0.94. Estimated V(O2) peak correlated with postocclusion arterial inflow (r = 0.54, P = 0.012) and resting venous outflow (r = 0.56, P = 0.016). Finally, handgrip strength was associated with venous capacitance (r = 0.57, P = 0.007) and outflow (r = 0.67, P = 0.001). These results indicate that the examination of forearm vascular function using MSGP is reproducible. Moreover, the data show the importance of careful consideration of the selection of venous occlusion pressure and period when implementing these measures in longitudinal trials. Finally, the associations between fitness and venous measures suggest a link between venous function and exercise performance.
Descriptors
Adult, Arteries/physiology, Blood Pressure, Constriction, Female, Forearm/blood supply, Hand Strength, Humans, Male, Oxygen Consumption, Physical Fitness, Plethysmography/methods, Reproducibility of Results, Veins/physiology
Links
Book Title
Database
Publisher
Data Source
Authors
Alomari,M. A., Solomito,A., Reyes,R., Khalil,S. M., Wood,R. H., Welsch,M. A.
Original/Translated Title
URL
Date of Electronic
20030925
PMCID
Editors