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  1. Article ; Online: Regulation of Hypoxic Pulmonary Vasoconstriction in Lowlanders and Healthy Andean Highlanders: Iron-ing Out the Wrinkles at High Altitude.

    Duke, Joseph W / Lovering, Andrew T

    Chest

    2022  Volume 161, Issue 4, Page(s) 878–879

    MeSH term(s) Acclimatization/physiology ; Altitude ; Altitude Sickness ; Humans ; Hypoxia ; Iron ; Vasoconstriction
    Chemical Substances Iron (E1UOL152H7)
    Language English
    Publishing date 2022-04-05
    Publishing country United States
    Document type Editorial ; Comment
    ZDB-ID 1032552-9
    ISSN 1931-3543 ; 0012-3692
    ISSN (online) 1931-3543
    ISSN 0012-3692
    DOI 10.1016/j.chest.2021.10.009
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Expiratory flow limitation during exercise: why does it 'suck' so much?

    Duke, Joseph W / Cross, Troy J

    The Journal of physiology

    2022  Volume 601, Issue 1, Page(s) 7–8

    MeSH term(s) Humans ; Exercise ; Respiratory Mechanics ; Pulmonary Disease, Chronic Obstructive
    Language English
    Publishing date 2022-12-13
    Publishing country England
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Comment
    ZDB-ID 3115-x
    ISSN 1469-7793 ; 0022-3751
    ISSN (online) 1469-7793
    ISSN 0022-3751
    DOI 10.1113/JP284068
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Reduced Aerobic Exercise Capacity in Adults Born at Very Low Birth Weight: No Small Matter!

    Lovering, Andrew T / Duke, Joseph W

    American journal of respiratory and critical care medicine

    2021  Volume 205, Issue 1, Page(s) 8–10

    MeSH term(s) Adult ; Exercise ; Exercise Tolerance ; Humans ; Infant, Newborn ; Infant, Very Low Birth Weight
    Language English
    Publishing date 2021-10-28
    Publishing country United States
    Document type Editorial ; Comment
    ZDB-ID 1180953-x
    ISSN 1535-4970 ; 0003-0805 ; 1073-449X
    ISSN (online) 1535-4970
    ISSN 0003-0805 ; 1073-449X
    DOI 10.1164/rccm.202109-2173ED
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  4. Article ; Online: Consequences of Preterm Birth: Knowns, Unknowns, and Barriers to Advancing Cardiopulmonary Health.

    Hubbard, Colin D / Bates, Melissa L / Lovering, Andrew T / Duke, Joseph W

    Integrative and comparative biology

    2023  Volume 63, Issue 3, Page(s) 693–704

    Abstract: Preterm birth occurs in 10% of all live births and creates challenges to neonatal life, which persist into adulthood. Significant previous work has been undertaken to characterize and understand the respiratory and cardiovascular sequelae of preterm ... ...

    Abstract Preterm birth occurs in 10% of all live births and creates challenges to neonatal life, which persist into adulthood. Significant previous work has been undertaken to characterize and understand the respiratory and cardiovascular sequelae of preterm birth, which are present in adulthood, i.e., "late" outcomes. However, many gaps in knowledge are still present and there are several challenges that will make filling these gaps difficult. In this perspective we discuss the obstacles of studying adults born preterm, including (1) the need for invasive (direct) measures of physiologic function; (2) the need for multistate, multinational, and diverse cohorts; (3) lack of socialized medicine in the United States; (4) need for detailed and better-organized birth records; and (5) transfer of neonatal and pediatric knowledge to adult care physicians. We conclude with a discussion on the "future" of studying preterm birth in regards to what may happen to these individuals as they approach middle and older age and how the improvements in perinatal and postnatal care may be changing the phenotypes observed in adults born preterm on or after the year 2000.
    MeSH term(s) Infant, Newborn ; Pregnancy ; Female ; Animals ; United States ; Humans ; Premature Birth ; Pregnancy Outcome ; Infant, Premature ; Pregnancy, Multiple ; Infant, Low Birth Weight ; Reproductive Techniques, Assisted
    Language English
    Publishing date 2023-05-30
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, N.I.H., Extramural
    ZDB-ID 2159110-6
    ISSN 1557-7023 ; 1540-7063
    ISSN (online) 1557-7023
    ISSN 1540-7063
    DOI 10.1093/icb/icad045
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  5. Article ; Online: Respiratory and cardiopulmonary limitations to aerobic exercise capacity in adults born preterm.

    Duke, Joseph W / Lovering, Andrew T

    Journal of applied physiology (Bethesda, Md. : 1985)

    2020  Volume 129, Issue 4, Page(s) 718–724

    Abstract: Adults born preterm, regardless of whether they develop bronchopulmonary dysplasia, have underdeveloped respiratory and cardiopulmonary systems. The resulting impaired respiratory and cardiopulmonary systems are inadequate for the challenges imposed by ... ...

    Abstract Adults born preterm, regardless of whether they develop bronchopulmonary dysplasia, have underdeveloped respiratory and cardiopulmonary systems. The resulting impaired respiratory and cardiopulmonary systems are inadequate for the challenges imposed by aerobic exercise, which is exacerbated by the presence of bronchopulmonary dysplasia. Thus the respiratory and cardiopulmonary systems of these preterm individuals may be the most influential contributors to the significantly lower aerobic exercise capacity compared with their term born counterparts. The precise underlying cause(s) of the lower aerobic exercise capacity in adults born preterm is not entirely known but could be a number of interrelated parameters including mechanical ventilatory constraints, impaired pulmonary gas exchange efficiency, and excessive cardiopulmonary pressures. Likewise, additional aspects, such as impaired cardiovascular function and altered muscle bioenergetics, may play additional roles in limiting aerobic exercise capacity. Whether or not all or some of these aspects are present in adults born preterm and precisely how they may contribute to the lower aerobic exercise capacity are only beginning to be systematically explored. The purpose of this mini-review is to outline what is currently known about the respiratory and cardiopulmonary limitations during exercise in this population and to identify key areas where additional knowledge will help to advance this area. Additionally, where possible, we highlight the similarities and differences between obstructive lung disease resulting from preterm birth and chronic obstructive pulmonary disease (COPD) as the physiology and pathophysiology of these two forms of obstructive lung disease may not be identical.
    MeSH term(s) Adult ; Bronchopulmonary Dysplasia ; Exercise ; Exercise Tolerance ; Humans ; Premature Birth ; Pulmonary Gas Exchange
    Language English
    Publishing date 2020-08-13
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 219139-8
    ISSN 1522-1601 ; 0021-8987 ; 0161-7567 ; 8750-7587
    ISSN (online) 1522-1601
    ISSN 0021-8987 ; 0161-7567 ; 8750-7587
    DOI 10.1152/japplphysiol.00419.2020
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  6. Article ; Online: Hyperoxia-induced stepwise reduction in blood flow through intrapulmonary, but not intracardiac, shunt during exercise.

    Davis, James T / Elliott, Jonathan E / Duke, Joseph W / Cristobal, Alberto / Lovering, Andrew T

    American journal of physiology. Regulatory, integrative and comparative physiology

    2023  Volume 325, Issue 1, Page(s) R96–R105

    Abstract: Blood flow through intrapulmonary arteriovenous anastomoses (IPAVA) ( ...

    Abstract Blood flow through intrapulmonary arteriovenous anastomoses (IPAVA) (
    MeSH term(s) Male ; Female ; Humans ; Hyperoxia ; Hemodynamics/physiology ; Oxygen ; Heart ; Pulmonary Circulation/physiology ; Foramen Ovale, Patent
    Chemical Substances Oxygen (S88TT14065)
    Language English
    Publishing date 2023-05-15
    Publishing country United States
    Document type Journal Article ; Research Support, U.S. Gov't, Non-P.H.S. ; Research Support, Non-U.S. Gov't
    ZDB-ID 603839-6
    ISSN 1522-1490 ; 0363-6119
    ISSN (online) 1522-1490
    ISSN 0363-6119
    DOI 10.1152/ajpregu.00014.2023
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  7. Article ; Online: Physiological aspects of cardiopulmonary dysanapsis on exercise in adults born preterm.

    Duke, Joseph W / Lewandowski, Adam J / Abman, Steven H / Lovering, Andrew T

    The Journal of physiology

    2022  Volume 600, Issue 3, Page(s) 463–482

    Abstract: Progressive improvements in perinatal care and respiratory management of preterm infants have resulted in increased survival of newborns of extremely low gestational age over the past few decades. However, the incidence of bronchopulmonary dysplasia, the ...

    Abstract Progressive improvements in perinatal care and respiratory management of preterm infants have resulted in increased survival of newborns of extremely low gestational age over the past few decades. However, the incidence of bronchopulmonary dysplasia, the chronic lung disease after preterm birth, has not changed. Studies of the long-term follow-up of adults born preterm have shown persistent abnormalities of respiratory, cardiovascular and cardiopulmonary function, possibly leading to a lower exercise capacity. The underlying causes of these abnormalities are incompletely known, but we hypothesize that dysanapsis, i.e. discordant growth and development, in the respiratory and cardiovascular systems is a central structural feature that leads to a lower exercise capacity in young adults born preterm than those born at term. We discuss how the hypothesized system dysanapsis underscores the observed respiratory, cardiovascular and cardiopulmonary limitations. Specifically, adults born preterm have: (1) normal lung volumes but smaller airways, which causes expiratory airflow limitation and abnormal respiratory mechanics but without impacts on pulmonary gas exchange efficiency; (2) normal total cardiac size but smaller cardiac chambers; and (3) in some cases, evidence of pulmonary hypertension, particularly during exercise, suggesting a reduced pulmonary vascular capacity despite reduced cardiac output. We speculate that these underlying developmental abnormalities may accelerate the normal age-associated decline in exercise capacity, via an accelerated decline in respiratory, cardiovascular and cardiopulmonary function. Finally, we suggest areas of future research, especially the need for longitudinal and interventional studies from infancy into adulthood to better understand how preterm birth alters exercise capacity across the lifespan.
    MeSH term(s) Adult ; Bronchopulmonary Dysplasia ; Exercise/physiology ; Female ; Humans ; Infant ; Infant, Newborn ; Infant, Premature ; Pregnancy ; Premature Birth ; Pulmonary Gas Exchange/physiology ; Young Adult
    Language English
    Publishing date 2022-01-12
    Publishing country England
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 3115-x
    ISSN 1469-7793 ; 0022-3751
    ISSN (online) 1469-7793
    ISSN 0022-3751
    DOI 10.1113/JP281848
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  8. Article ; Online: Reply to Tepper

    McGinn, Elizabeth A / Mandell, Erica W / Smith, Bradford J / Duke, Joseph W / Bush, Andrew / Abman, Steven H

    American journal of respiratory and critical care medicine

    2024  Volume 209, Issue 8, Page(s) 1041–1042

    MeSH term(s) Humans ; Vital Capacity
    Language English
    Publishing date 2024-02-01
    Publishing country United States
    Document type Letter
    ZDB-ID 1180953-x
    ISSN 1535-4970 ; 0003-0805 ; 1073-449X
    ISSN (online) 1535-4970
    ISSN 0003-0805 ; 1073-449X
    DOI 10.1164/rccm.202312-2345LE
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  9. Article ; Online: Premature Aging and Increased Risk of Adult Cardiorespiratory Disease after Extreme Preterm Birth. Getting to the Heart (and Lungs) of the Matter.

    Duke, Joseph W / Lovering, Andrew T / Goss, Kara N

    American journal of respiratory and critical care medicine

    2020  Volume 202, Issue 3, Page(s) 319–320

    MeSH term(s) Adult ; Aging, Premature ; Female ; Heart ; Humans ; Infant, Newborn ; Infant, Premature ; Pregnancy ; Premature Birth/epidemiology ; Survivors
    Language English
    Publishing date 2020-05-14
    Publishing country United States
    Document type Editorial ; Comment
    ZDB-ID 1180953-x
    ISSN 1535-4970 ; 0003-0805 ; 1073-449X
    ISSN (online) 1535-4970
    ISSN 0003-0805 ; 1073-449X
    DOI 10.1164/rccm.202004-1437ED
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  10. Article ; Online: INFLUENCE OF PROLONGED EXERCISE ON THE 24-HOUR FREE TESTOSTERONE - CORTISOL RATIO HORMONAL PROFILE.

    Duke, Joseph W / Rubin, Daniela A / Daly, Will / Hackney, Anthony C

    Medicina sportiva (Krakow, Poland : English ed.)

    2021  Volume 11, Issue 2, Page(s) 48–50

    Abstract: Aim of the study: This study examined the response of the free testosterone and cortisol ratio (fTC) to prolonged endurance exercise.: Methods: A trained sportsman performed treadmill exercise at 70% of maximal oxygen uptake to volitional fatigue. ... ...

    Abstract Aim of the study: This study examined the response of the free testosterone and cortisol ratio (fTC) to prolonged endurance exercise.
    Methods: A trained sportsman performed treadmill exercise at 70% of maximal oxygen uptake to volitional fatigue. Frequent blood samples were collected over 24 hours and analyzed to determine changes in the fTC ratio.
    Results: Exercise caused an initial increase in the ratio followed by a rapid decline in the immediate recovery from exercise. Approximately 8 hours into recovery from exercise, there was a pronounced and persistent (~6 hours) secondary increase in the ratio.
    Conclusions: Results suggest that the fTC ratio responds to intensive exercise, but that aspects of the response can be of a delayed nature occurring many hours into recovery. Exercise scientists who wish to monitor this parameter should be aware that the time course by which they choose to conduct their blood sampling could impact upon the interpretation of their data.
    Language English
    Publishing date 2021-04-03
    Publishing country Poland
    Document type Journal Article
    ZDB-ID 2241073-9
    ISSN 1734-2260 ; 1734-2260 ; 1429-0022
    ISSN (online) 1734-2260
    ISSN 1734-2260 ; 1429-0022
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