Results 181 to 190 of about 65,877 (302)

Role of reactive oxygen species in mediating peripheral hypoxic vasodilation and sympathoexcitation at high altitude

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend High‐altitude acclimatisation increases muscle sympathetic nerve activity (MSNA) via activation of the arterial chemoreflex, pulmonary arterial baroreceptors and resetting of the sympathetic vascular baroreflex. However attempting to silence these mechanisms only partially normalises MSNA, implicating other contributory ...
Liam D. Corr   +15 more
wiley   +1 more source

Author Correction: Pulmonary vascular reactivity in growth restricted fetuses using computational modelling and machine learning analysis of fetal Doppler waveforms. [PDF]

open access: yesSci Rep
Vellvé K   +14 more
europepmc   +1 more source

Automatic Respiratory and Bulk Patient Motion Corrected 3D Fetal MRI

open access: yesMagnetic Resonance in Medicine, Volume 95, Issue 4, Page 1972-1985, April 2026.
ABSTRACT Purpose To develop a framework (ACROBATIC) for correcting motion in 3D radial fetal MRI. Methods Data were simulated (N = 200) and acquired in utero (N = 11, gestational age: 32 ± 2 weeks). Motion due to maternal respiration was estimated by extracting a self‐gating signal and applying focused navigation. Bulk motion was estimated by splitting
Robin Ferincz   +8 more
wiley   +1 more source

International Contrast Ultrasound Society Safety Round Table

open access: yesJournal of Ultrasound in Medicine, Volume 45, Issue 3, Page 473-485, March 2026.
The international Contract Ultrasound Society (ICUS) held a round table discussion on the safety of ultrasound contrast agents for cardiology, radiology, and pediatrics on September 4, 2024. The panel included international experts on ultrasound contrast.
Richard G. Barr   +5 more
wiley   +1 more source

Laser Doppler flow measurements with a semiconductor laser [PDF]

open access: yes, 1986
Aarnoudse, J.G.   +5 more
core   +3 more sources

Overview of Diagnostic Ultrasound Safety

open access: yesJournal of Ultrasound in Medicine, Volume 45, Issue 3, Page 487-496, March 2026.
Ultrasound is widely regarded as a safe imaging modality; however, emerging ultrasound‐based techniques—such as shear wave elastography and contrast‐enhanced ultrasound—operate with varying acoustic output parameters that may approach or exceed traditional diagnostic limits. As these technologies are increasingly integrated into human research studies,
Saubhagya Srivastava   +5 more
wiley   +1 more source

ROC‐325 Attenuates Hypoxia‐Induced Pulmonary Hypertension Through Dual Inhibition of Autophagy and Hypoxia‐Inducible Factor 2α Signaling

open access: yesMedComm – Future Medicine, Volume 5, Issue 1, March 2026.
In hypoxia‐induced pulmonary hypertension, endothelial HIF‐2α accumulation and autophagic activation drive vascular remodeling. We demonstrate that the novel lysosomal inhibitor ROC‐325 simultaneously attenuates this pathogenic autophagy and promotes HIF‐2α degradation.
Changlei Bao   +18 more
wiley   +1 more source

Society for Maternal‐Fetal Medicine Special Statement: Updated checklists for management of monochorionic twin pregnancy

open access: yesPregnancy, Volume 2, Issue 2, March 2026.
Abstract Approximately 20% of twin pregnancies are monochorionic—either monochorionic/diamniotic (MC/DA) or monochorionic/monoamniotic (MC/MA). The management of monochorionic twin pregnancy involves several additional interventions beyond the routine management of singletons or dichorionic twins. In 2020, the Society for Maternal‐Fetal Medicine (SMFM)
Society for Maternal‐Fetal Medicine (SMFM)   +4 more
wiley   +1 more source

Association between preeclampsia and reversible cerebral vasoconstriction syndrome: A case‐control study

open access: yesPregnancy, Volume 2, Issue 2, March 2026.
Abstract Background and objectives Pregnancy‐related reversible cerebral vasoconstriction syndrome (RCVS) has higher rates of intracerebral complications and mortality compared to non‐pregnant RCVS. Case reports suggest preeclampsia‐eclampsia as an important risk factor; however, data are limited regarding this association.
Srinath Ramaswamy   +7 more
wiley   +1 more source

Temporal Changes in Fetal and Maternal Parameters in Early‐Onset Fetal Growth Restriction: A Multicenter, Retrospective Cohort Study

open access: yesBJOG: An International Journal of Obstetrics &Gynaecology, Volume 133, Issue 4, Page 671-679, March 2026.
ABSTRACT Objective(s) Timing of birth is complex in early‐onset fetal growth restriction (FGR) and the literature is limited regarding the exact sequence of changes in antenatal parameters. This study aimed to examine this sequence in a large early‐onset FGR cohort. Design Multicenter, retrospective cohort study.
Mette van de Meent   +19 more
wiley   +1 more source

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