Results 61 to 70 of about 4,800 (169)

Caffeine and dobutamine challenge induces bidirectional ventricular tachycardia in normal rats

Heart Rhythm O2, 2020
Background: Bidirectional ventricular tachycardia (BD-VT) is an intriguing arrhythmia, characterized by a beat-to-beat alternation of the QRS polarity on electrocardiogram. Currently there is no simple BD-VT animal model.
Chenyu Zhang, BS, Youhua Zhang, MD, PhD
doaj   +1 more source

Malignant hyperthermia: Report on a successful rescue of a case with the highest temperature of 44.2°C

Open Medicine, 2023
Malignant hyperthermia (MH) is an inherited skeletal muscle disorder caused primarily by a genetic mutation, usually in the calcium channel gene of the muscle. This mutation can lead to muscle hypersensitivity to volatile anesthetics (such as sevoflurane)
Lan Haiyan, Duan Gongchen, Zuo Yunxia, Lou Tianzheng, Xu Junlong, Shao Chuxiao, Wu Jimin   +6 more
doaj   +1 more source

Carrier screening in the reproductive setting—Are there medical implications for the heterozygote?—A guide for clinicians

Pregnancy, Volume 2, Issue 3, May 2026.
Abstract Carrier screening for genetic conditions performed preconception or during pregnancy allows identification of fetal risk for inherited autosomal recessive and X‐linked conditions. The goal is to identify at‐risk patients/couples and offer them reproductive options such as preimplantation genetic diagnosis, prenatal testing, or targeted newborn
Emily B. Rosenfeld, Nicole Kasatkin, Bi Liu Yu, Milen Velinov, Justin S. Brandt, Elena Ashkinadze   +5 more
wiley   +1 more source

Reversible cerebral vasoconstriction syndrome: A narrative review

Headache: The Journal of Head and Face Pain, Volume 66, Issue 5, Page 1162-1180, May 2026.
Abstract Objectives/Background This review summarizes current insights into Reversible cerebral vasoconstriction syndrome (RCVS) diagnosis, management, and outcomes. RCVS is a cerebrovascular disorder characterized by recurrent thunderclap headaches and transient segmental vasoconstriction of cerebral arteries, typically resolving within 3 months ...
Ícaro Araújo de Sousa, Abner da Silva Machado, Arthur de Oliveira Veras, Thiago Oscar Goulart, Sarah Galassi Tatsuta, Trajano Aguiar Pires Gonçalves, Eva Rocha, Octávio Marques Pontes‐Neto   +7 more
wiley   +1 more source

Lactate potentiates NMDA receptor currents via an intracellular redox mechanism targeting GluN2B subunits: implications for synaptic plasticity

The Journal of Physiology, Volume 604, Issue 10, Page 3934-3963, 15 May 2026.
Abstract figure legend Astrocyte‐derived lactate enhances neuronal NMDA receptor (NMDAR) function and synaptic plasticity through a redox‐ and CaMKII‐dependent mechanism. Lactate enters neurons via monocarboxylate transporters (MCTs) and is oxidized by lactate dehydrogenase (LDH) to pyruvate, generating NADH and increasing the intracellular NADH/NAD ...
Hubert Fiumelli, Gabriel Herrera‐López, Fouad Lemtiri‐Chlieh, Lorène Mottier, John Girgis, Carine Ben‐Adiba, Pascal Jourdain, Nicolò Carrano, Hanan Mahmood, Amanda Ooi, Stefan T. Arold, Monica Di Luca, Fabrizio Gardoni, Pierre J. Magistretti   +13 more
wiley   +1 more source

Measuring blood–brain barrier dysfunction: a critical appraisal of fluid biomarkers, in vitro models, in vivo imaging, and post‐mortem approaches

Alzheimer's &Dementia, Volume 22, Issue 3, March 2026.
Abstract The blood–brain barrier (BBB) maintains central nervous system homeostasis by regulating molecular exchange between blood and brain. BBB dysfunction is associated with aging and neurological disorders such as Alzheimer's disease, stroke, and multiple sclerosis.
Shakira A. van der Panne, Helena Durrant, Jannis F. Heuer, Ivana Kancheva, Arno Stellingwerf, Lieuwe T. K. M. Verkaar, Damon Verstappen, Pascalle Mossel, Walter H. Backes, Erik N. T. P. Bakker, Jurgen A. H. R. Claassen, Marcel M. Verbeek, Louise van der Weerd, Matthias J. P. van Osch, Helga E. de Vries   +14 more
wiley   +1 more source

Unmasking malignant hyperthermia: a rapid response to a hypermetabolic crisis: case report

Frontiers in Anesthesiology
IntroductionMalignant Hyperthermia is a rare, life-threatening pharmacogenetic disorder that can occur after exposure to triggering anesthetic agents, including volatile anesthetics and succinylcholine.Case presentationAn 18-year-old male with multiple ...
En Chang, Hrach Nalchajyan, Diana A. Fisler, Calvin Lee, Linda L. Cintron, Nadia Nathan   +5 more
doaj   +1 more source

Heart Failure: Epidemiology, Pathophysiology, and Management

MedComm, Volume 7, Issue 3, March 2026.
This article takes calcium homeostasis as the point of departure to provide an overview of heart failure from three perspectives—epidemiology, pathophysiological mechanisms, and management strategies—and summarizes the current unmet needs and future directions in the field. ABSTRACT Heart failure (HF) is one of the leading causes of hospitalization and
Yujian Fan, Zhihua Yang, Qing Li, Meng Sun, Yumeng Pu, Ke Zhao, Yu Bao, Xianliang Wang, Jingyuan Mao, Zhiqiang Zhao   +9 more
wiley   +1 more source

High‐Throughput Platform for Discovery of Chemical Inhibitors of Heat Shock Protein 70 (Hsp70): Adaptation for the Specialized Bacterial HscA–HscB–IscU Complex

Chemical Biology &Drug Design, Volume 107, Issue 3, March 2026.
The HscA–HscB–IscU system functions in iron–sulfur (Fe‐S) cluster biogenesis in bacteria and fungi, including pathogenic strains. Here, we describe a high‐throughput screen (HTS) to measure inorganic phosphate release from the ATPase HscA within this reconstituted, multi‐protein complex.
Arielle Shkedi, Aneta Grabinska‐Rogala, Jason Hernandez, Rafał Dutkiewicz, Jaroslaw Marszalek, Jason E. Gestwicki   +5 more
wiley   +1 more source

Loose-patch clamp analysis applied to voltage-gated ionic currents following pharmacological ryanodine receptor modulation in murine hippocampal cornu ammonis-1 pyramidal neurons

Frontiers in Physiology
IntroductionThe loose-patch clamp technique was first developed and used in native amphibian skeletal muscle (SkM), offering useful features complementing conventional sharp micro-electrode, gap, or conventional patch voltage clamping.
Federico Bertagna, Federico Bertagna, Shiraz Ahmad, Rebecca Lewis, Rebecca Lewis, S. Ravi P. Silva, S. Ravi P. Silva, Johnjoe McFadden, Johnjoe McFadden, Christopher L.-H. Huang, Christopher L.-H. Huang, Christopher L.-H. Huang, Hugh R. Matthews, Kamalan Jeevaratnam, Kamalan Jeevaratnam   +14 more
doaj   +1 more source