Journal Articles

Leaky channels make weak muscles: Mutations in the skeletal muscle voltage-gated calcium channel (CaV 1.1) have been associated with hypokalemic periodic paralysis, but how these mutations cause the symptoms of the disorder has always been unclear. In this article the authors describe how they used mice with the CaV 1.1 mutation  to investigate how the mutation causes the features of HypoKPP.

Neurology. 2013 Feb 20. [Epub ahead of print]
Bumetanide prevents transient decreases in muscle force in murine hypokalemic periodic paralysis.
Wu F, Mi W, Cannon SC.

Source: From the Department of Neurology and Neurotherapeutics (F.W., W.M., S.C.C.) and Program in Neuroscience (S.C.C.), UT Southwestern Medical Center, Dallas, TX.

Abstract

OBJECTIVE:

Severe respiratory phenotype caused by a de novo Arg528Gly mutation in the CACNA1S gene in a patient with hypokalemic periodic paralysis.

Authors Kil TH, et al.

Journal: Eur J Paediatr Neurol. 2010 May;14(3):278-81. doi: 10.1016/j.ejpn.2009.08.004. Epub 2009 Oct 12.

Affiliation: Department of Pediatrics, College of Medicine, Konyang University, 685 Gasoowon-dong, Su-goo, Daejun, Choongnam 302-718, South Korea.

PLoS One. 2012; 7(7): e40235.
Published online 2012 July 10.

Splicing of the rSlo Gene Affects the Molecular Composition and Drug Response of Ca2+-Activated K+ Channels in Skeletal Muscle

Maria Maddalena Dinardo,#1 Giulia Camerino,#1 Antonietta Mele,1 Ramon Latorre,2 Diana Conte Camerino,1 and Domenico Tricarico1,*

Abstract


Measuring quality of life impairment in skeletal muscle channelopathies.


Eur J Neurol. 2012 May 19. doi: 10.1111/j.1468-1331.2012.03751.x. [Epub ahead of print]

Sansone VA, Ricci C, Montanari M, Apolone G, Rose M, Meola G; INQoL Group.
Source
Department of Neurology, University of Milan, IRCCS Policlinico San Donato, Milan, Italy.


Abstract


BACKGROUND AND PURPOSE:

Penn State researcher counts the ways poetess Browning may have had rare disease
By Tom Avril; Philadephia Inquirer Staff Writer

Scholars have proposed a number of explanations for the muscle weakness and other ailments that plagued the Victorian poet Elizabeth Barrett Browning. But none of these after-the-fact diagnoses - from anxiety to tuberculosis - seemed to fit the symptoms perfectly. Now Pennsylvania State University researcher Anne Buchanan thinks she has cracked the case, as the result of an intensely personal connection.

For your convenience, arranged by topic, a "shelf" of journal articles on the periodic paralyses.

If you have a favorite link to suggest please pass it along.

Electrocardiographic Features in Andersen-Tawil Syndrome
Patients With KCNJ2 Mutations

Characteristic T-U–Wave Patterns Predict the KCNJ2 Genotype

Li Zhang, MD; D. Woodrow Benson, MD, PhD; Martin Tristani-Firouzi, MD; Louis J. Ptacek, MD;
Rabi Tawil, MD; Peter J. Schwartz, MD; Alfred L. George, MD; Minoru Horie, MD, PhD;
Gregor Andelfinger, MD; Gregory L. Snow, PhD; Ying-Hui Fu, PhD;
Michael J. Ackerman, MD, PhD; G. Michael Vincent, MD

This chapter from McGraw Hill's Myology, third edition; editors Andrew Engel and Clara Franzini-Armstrong,  give a comprehensive look at the nondystrophic myotonias and periodic paralyses, written by one of the world's top teams in the field.

Chapter from Myology, third edition: Nondystrophic Myotonias and Periodic Paralyses by Frank Lehmann-Horn, Reinhardt Rudel and Karin Jurkat-Rott.

Thank you Professor Dr. Lehmann-Horn, Dr. Jurkat-Rott and Dr. Rudel for your kind permission to include this valuable information on our website!

Communication is key: Stephen Wilkins, MPH, writes of improving practice management through improved patient/physician communication and its impact on care, in Mind the Gap.