Muscle disease and myasthenia in pregnancy

Neurology and Pregnancy - Series in Maternal-Fetal Medicine ◽

10.3109/9781841847597.026 ◽

2012 ◽

pp. 249-252

Author(s):

Fiona Norwood

Keyword(s):

Muscle Disease ◽

In Pregnancy

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Levetiracetam Induced Acute Pancreatitis Case in Pregnancy

Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques ◽

10.1017/s031716710001790x ◽

2013 ◽

Vol 40 (06) ◽

pp. 896 ◽

Cited By ~ 1

Author(s):

Murat Sarikaya ◽

Nesibe Taser ◽

Zeynal Dogan ◽

Bilal Ergul ◽

F. Irsel Tezer ◽

...

Keyword(s):

Acute Pancreatitis ◽

In Pregnancy

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Z-line degradation and phagocytosis of sarcomeric fragments in myonecrosis

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100077529 ◽

1983 ◽

Vol 41 ◽

pp. 790-791

Author(s):

Melinda L. Estes ◽

Samuel M. Chou

Keyword(s):

Vastus Lateralis ◽

Inflammatory Myopathy ◽

Muscle Disease ◽

White Female ◽

Inflammatory Cell Infiltrate ◽

Limb Weakness ◽

Muscle Diseases ◽

History Of ◽

The Right ◽

Mononuclear Inflammatory Cell

Many muscle diseases show common pathological features although their etiology is different. In primary muscle diseases a characteristic finding is myofiber necrosis. The mechanism of myonecrosis is unknown. Polymyositis is a primary muscle disease characterized by acute and subacute degeneration as well as regeneration of muscle fibers coupled with an inflammatory infiltrate. We present a case of polymyositis with unusual ultrastructural features indicative of the basic pathogenetic process involved in myonecrosis.The patient is a 63-year-old white female with a one history of proximal limb weakness, weight loss and fatigue. Examination revealed mild proximal weakness and diminished deep tendon reflexes. Her creatine kinase was 1800 mU/ml (normal < 140 mU/ml) and electromyography was consistent with an inflammatory myopathy which was verified by light microscopy on biopsy muscle. Ultrastructural study of necrotizing myofiber, from the right vastus lateralis, showed: (1) degradation of the Z-lines with preservation of the adjacent Abands including M-lines and H-bands, (Fig. 1), (2) fracture of the sarcomeres at the I-bands with disappearance of the Z-lines, (Fig. 2), (3) fragmented sarcomeres without I-bands, engulfed by invading phagocytes, (Fig. 3, a & b ), and (4) mononuclear inflammatory cell infiltrate in the endomysium.

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POPDC proteins and cardiac function

Biochemical Society Transactions ◽

10.1042/bst20190249 ◽

2019 ◽

Vol 47 (5) ◽

pp. 1393-1404 ◽

Cited By ~ 4

Author(s):

Thomas Brand

Keyword(s):

Potential Role ◽

Striated Muscle ◽

Short Review ◽

Effector Proteins ◽

Muscle Disease ◽

Disease Genes ◽

Protein Protein Interaction ◽

Interaction Partners ◽

And Function

Abstract The Popeye domain-containing gene family encodes a novel class of cAMP effector proteins in striated muscle tissue. In this short review, we first introduce the protein family and discuss their structure and function with an emphasis on their role in cyclic AMP signalling. Another focus of this review is the recently discovered role of POPDC genes as striated muscle disease genes, which have been associated with cardiac arrhythmia and muscular dystrophy. The pathological phenotypes observed in patients will be compared with phenotypes present in null and knockin mutations in zebrafish and mouse. A number of protein–protein interaction partners have been discovered and the potential role of POPDC proteins to control the subcellular localization and function of these interacting proteins will be discussed. Finally, we outline several areas, where research is urgently needed.

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