Results 151 to 160 of about 16,861 (284)

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

The 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, Andrew J. M. Douglas, Elliott J. Jenkins, Lauren E. Maier, Jodie L. Koep, Travis D. Gibbons, Adam Field, James D. Anholm, Katharine Foster, Zoe H. Adams, Lydia L. Simpson, Jonathan P. Moore, Tinna Traustadottir, Christoph Siebenmann, Joshua C. Tremblay, Mike Stembridge   +15 more
wiley   +1 more source

Impact of different hemodynamic states of patent ductus arteriosus on cerebral, mesenteric, and renal perfusion in preterm infants: a doppler ultrasound analysis. [PDF]

BMC Pediatr
Qiu Z, Lai LP, Zhang X, Hu W.
europepmc   +1 more source

A cascade model of dynamic cerebral autoregulation

The Journal of Physiology, EarlyView.
Abstract figure legend This study examined a two‐component cascade model linking upstream dynamic cerebral autoregulation (dCA) with downstream microvascular function (MF) to explain how blood pressure oscillations influence cortical oxygenation. Transfer function analysis in the frequency domain was applied to quantify H1(f) (MAP→CBFV; dCA), H2(f ...
Takuya Kurazumi, Kartavya Sharma, Ricardo R. J. Wennekers, Tsubasa Tomoto, Danilo Cardim, Junyeon Won, John Ashley, Jurgen A. H. R. Claassen, Rong Zhang   +8 more
wiley   +1 more source

A rare case of type 1 aortic dissection with carotid arter occlusion, preoperative seizure, and postoperative spinal cord ischemia. [PDF]

Egypt Heart J
Işık M, Öz HF, Kır HH, Günerhan Y, Dereli Y.   +4 more
europepmc   +1 more source

Respiration Can Trigger Cerebrovascular Reactivity: A Novel Method to Quantify Cerebrovascular Resistance Dynamics Using Real‐Time Phase‐Contrast MRI

Magnetic Resonance in Medicine, Volume 96, Issue 1, Page 83-95, July 2026.
ABSTRACT Purpose To directly quantify respiration‐driven cerebrovascular resistance dynamics (CRD) using a gas‐free MRI framework based on the internal‐to‐external artery carotid flow ratio (ratio_Q). Theory and Methods Two independent datasets (n = 10 and n = 17) were used to evaluate repeatability and to compare breathing conditions.
Pan Liu, Qiuting Wen, Kimi Owashi, Jean‐Marc Constans, Cyrille Capel, Olivier Balédent   +5 more
wiley   +1 more source

Optimizing IABP-patient interaction in VA-ECMO via transcranial doppler. [PDF]

Ultrasound J
Yepes-Velasco AF, Moreno-Araque JL, Garzon-Posada N.   +2 more
europepmc   +1 more source

Ivermectin Toxicity in Humans and Animals: Clinical Spectrum, Mechanisms, and Management

Journal of Applied Toxicology, Volume 46, Issue 6, Page 1856-1870, June 2026.
ABSTRACT Ivermectin is a widely used macrocyclic lactone with established efficacy against a broad range of parasitic infections in humans and animals and a long‐standing reputation for clinical safety. However, increasing evidence indicates that ivermectin can produce clinically relevant toxicity under specific conditions, particularly involving the ...
Serkan Yilmaz, Bayram Göktaş, İlker Ateş, Mustafa Çelik   +3 more
wiley   +1 more source

Characterizing the physiology of circulatory arrest in humans. [PDF]

Nat Med
Bird JD, Hornby L, Hirsch-Reinshagen V, Allen CP, Isac G, Gooderham PA, Shemie SD, Dhanani S, Thiara S, Stukas S, Grey R, Foster DA, Maier LE, LeBlanc AE, Kanji HD, Morelli TF, Agbay AM, Wellington CL, Chahal D, Belanger EC, Ren H, Mattu PS, Su S, Hrazdil CT, Percy J, Sangha P, Plewes LV, Sweet DD, Romano KR, Vu EN, Chittock DR, Dhingra VK, Henderson WR, Garraway NR, Morad Hameed S, Finlayson GN, MacLeod DB, Gibbons TD, Ainslie PN, Hoiland RL, Griesdale DE, Ronco JJ, Sekhon MS.   +42 more
europepmc   +1 more source

The effect of respiratory metaboreflex on cerebral haemodynamics during exercise

Experimental Physiology, EarlyView.
Rasmus Kopp Hansen, Niels H. Secher, Markus Wendt Schelske, Stefanos Volianitis   +3 more
wiley   +1 more source

Ultrafast Blood T1 Measurement Using Golden Angle Rotated Spiral k‐t Sparse Parallel Imaging (GASSP): Evaluations in Both Pre‐ and Post‐Contrast Conditions

Magnetic Resonance in Medicine, Volume 95, Issue 6, Page 3351-3359, June 2026.
ABSTRACT Purpose Blood T1 is a key parameter for hemodynamic quantification in both non‐contrast‐ and contrast‐enhanced imaging. Individual vessel T1 has been measured using a modified Look–Locker scheme with multi‐shot EPI or FLASH in high spatial resolution, requiring ∼1 min.
Zechen Xu, Feng Xu, Qin Qin, Dan Zhu
wiley   +1 more source