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Nemaline myopathy 10(NEM10)

MedGen UID:
863797
Concept ID:
C4015360
Disease or Syndrome
Synonym: NEM10
 
Gene (location): LMOD3 (3p14.1)
 
Monarch Initiative: MONDO:0014513
OMIM®: 616165

Definition

Nemaline myopathy-10 (NEM10) is an autosomal recessive severe congenital myopathy characterized by early-onset generalized muscle weakness and hypotonia with respiratory insufficiency and feeding difficulties. Many patients present antenatally with decreased fetal movements, and most die of respiratory failure in early infancy (summary by Yuen et al., 2014). Patients with a stable and much milder disease course have been described (Schatz et al., 2018). For a discussion of genetic heterogeneity of nemaline myopathy, see NEM3 (161800). [from OMIM]

Additional description

From MedlinePlus Genetics
Nemaline myopathy is divided into six types. In order of decreasing severity, the types are: severe congenital, Amish, intermediate congenital, typical congenital, childhood-onset, and adult-onset. The types are distinguished by the age when symptoms first appear and the severity of symptoms; however, there is overlap among the various types. The severe congenital type is the most life-threatening. Most individuals with this type do not survive past early childhood due to respiratory failure. The Amish type solely affects the Old Order Amish population of Pennsylvania and is typically fatal in early childhood. The most common type of nemaline myopathy is the typical congenital type, which is characterized by muscle weakness and feeding problems beginning in infancy. Most of these individuals do not have severe breathing problems and can walk unassisted. People with the childhood-onset type usually develop muscle weakness in adolescence. The adult-onset type is the mildest of all the various types. People with this type usually develop muscle weakness between ages 20 and 50.

Nemaline myopathy is a disorder that primarily affects skeletal muscles, which are muscles that the body uses for movement. People with nemaline myopathy have muscle weakness (myopathy) throughout the body, but it is typically most severe in the muscles of the face; neck; trunk; and other muscles close to the center of the body (proximal muscles), such as those of the upper arms and legs. This weakness can worsen over time. Affected individuals may have feeding and swallowing difficulties, foot deformities, abnormal curvature of the spine (scoliosis), and joint deformities (contractures). Most people with nemaline myopathy are able to walk, although some affected children may begin walking later than usual. As the condition progresses, some people may require wheelchair assistance. In severe cases, the muscles used for breathing are affected and life-threatening breathing difficulties can occur.  https://medlineplus.gov/genetics/condition/nemaline-myopathy

Clinical features

From HPO
Feeding difficulties
MedGen UID:
65429
Concept ID:
C0232466
Finding
Impaired ability to eat related to problems gathering food and getting ready to suck, chew, or swallow it.
Bulbar palsy
MedGen UID:
898626
Concept ID:
C4082299
Disease or Syndrome
Bulbar weakness (or bulbar palsy) refers to bilateral impairment of function of the lower cranial nerves IX, X, XI and XII, which occurs due to lower motor neuron lesion either at nuclear or fascicular level in the medulla or from bilateral lesions of the lower cranial nerves outside the brain-stem. Bulbar weakness is often associated with difficulty in chewing, weakness of the facial muscles, dysarthria, palatal weakness and regurgitation of fluids, dysphagia, and dysphonia.
Muscle weakness
MedGen UID:
57735
Concept ID:
C0151786
Finding
Reduced strength of muscles.
Congenital contracture
MedGen UID:
83066
Concept ID:
C0332878
Congenital Abnormality
One or more flexion contractures (a bent joint that cannot be straightened actively or passively) that are present at birth.
Flexion contracture
MedGen UID:
83069
Concept ID:
C0333068
Anatomical Abnormality
A flexion contracture is a bent (flexed) joint that cannot be straightened actively or passively. It is thus a chronic loss of joint motion due to structural changes in muscle, tendons, ligaments, or skin that prevents normal movement of joints.
Facial palsy
MedGen UID:
87660
Concept ID:
C0376175
Disease or Syndrome
Facial nerve palsy is a dysfunction of cranial nerve VII (the facial nerve) that results in inability to control facial muscles on the affected side with weakness of the muscles of facial expression and eye closure. This can either be present in unilateral or bilateral form.
Muscular atrophy
MedGen UID:
892680
Concept ID:
C0541794
Pathologic Function
The presence of skeletal muscular atrophy (which is also known as amyotrophy).
Generalized muscle weakness
MedGen UID:
155433
Concept ID:
C0746674
Sign or Symptom
Generalized weakness or decreased strength of the muscles, affecting both distal and proximal musculature.
Severe muscular hypotonia
MedGen UID:
326544
Concept ID:
C1839630
Finding
A severe degree of muscular hypotonia characterized by markedly reduced muscle tone.
Generalized hypotonia
MedGen UID:
346841
Concept ID:
C1858120
Finding
Generalized muscular hypotonia (abnormally low muscle tone).
Nemaline bodies
MedGen UID:
814369
Concept ID:
C3808039
Finding
Nemaline rods are abnormal bodies that can occur in skeletal muscle fibers. The rods can be observed on histological analysis of muscle biopsy tissue or upon electron microscopy, where they appear either as extensions of sarcomeric Z-lines, in random array without obvious attachment to Z-lines (often in areas devoid of sarcomeres) or in large clusters localized at the sarcolemma or intermyofibrillar spaces.
Fatty replacement of skeletal muscle
MedGen UID:
866735
Concept ID:
C4021082
Finding
Muscle fibers degeneration resulting in fatty replacement of skeletal muscle fibers
Respiratory insufficiency due to muscle weakness
MedGen UID:
812797
Concept ID:
C3806467
Finding
Breech presentation
MedGen UID:
654
Concept ID:
C0006157
Pathologic Function
A position of the fetus at delivery in which the fetus enters the birth canal with the buttocks or feet first.
Polyhydramnios
MedGen UID:
6936
Concept ID:
C0020224
Pathologic Function
The presence of excess amniotic fluid in the uterus during pregnancy.
Premature birth
MedGen UID:
57721
Concept ID:
C0151526
Pathologic Function
The birth of a baby of less than 37 weeks of gestational age.
Decreased fetal movement
MedGen UID:
68618
Concept ID:
C0235659
Finding
An abnormal reduction in quantity or strength of fetal movements.
Ophthalmoplegia
MedGen UID:
45205
Concept ID:
C0029089
Sign or Symptom
Paralysis of one or more extraocular muscles that are responsible for eye movements.

Professional guidelines

PubMed

Naddaf E, Milone M, Kansagra A, Buadi F, Kourelis T
Neurology 2019 Jul 16;93(3):e298-e305. Epub 2019 Jun 5 doi: 10.1212/WNL.0000000000007777. PMID: 31167932
Guis S, Figarella-Branger D, Monnier N, Bendahan D, Kozak-Ribbens G, Mattei JP, Lunardi J, Cozzone PJ, Pellissier JF
Arch Neurol 2004 Jan;61(1):106-13. doi: 10.1001/archneur.61.1.106. PMID: 14732627

Recent clinical studies

Etiology

Fisher G, Mackels L, Markati T, Sarkozy A, Ochala J, Jungbluth H, Ramdas S, Servais L
Expert Opin Ther Targets 2022 Oct;26(10):853-867. Epub 2022 Dec 26 doi: 10.1080/14728222.2022.2157258. PMID: 36524401
Amburgey K, Acker M, Saeed S, Amin R, Beggs AH, Bönnemann CG, Brudno M, Constantinescu A, Dastgir J, Diallo M, Genetti CA, Glueck M, Hewson S, Hum C, Jain MS, Lawlor MW, Meyer OH, Nelson L, Sultanum N, Syed F, Tran T, Wang CH, Dowling JJ
Neurology 2021 Mar 9;96(10):e1425-e1436. Epub 2021 Jan 4 doi: 10.1212/WNL.0000000000011458. PMID: 33397769Free PMC Article
Naddaf E, Milone M, Kansagra A, Buadi F, Kourelis T
Neurology 2019 Jul 16;93(3):e298-e305. Epub 2019 Jun 5 doi: 10.1212/WNL.0000000000007777. PMID: 31167932
Schatz UA, Weiss S, Wenninger S, Schoser B, Muss WH, Bittner RE, Schmidt WM, Schossig AS, Rudnik-Schöneborn S, Baumann M
Neurology 2018 Oct 30;91(18):e1690-e1694. Epub 2018 Oct 5 doi: 10.1212/WNL.0000000000006428. PMID: 30291184
Cassandrini D, Trovato R, Rubegni A, Lenzi S, Fiorillo C, Baldacci J, Minetti C, Astrea G, Bruno C, Santorelli FM; Italian Network on Congenital Myopathies
Ital J Pediatr 2017 Nov 15;43(1):101. doi: 10.1186/s13052-017-0419-z. PMID: 29141652Free PMC Article

Diagnosis

Perry L, Stimpson G, Singh L, Morrow JM, Shah S, Baranello G, Muntoni F, Sarkozy A
Ann Clin Transl Neurol 2023 Jul;10(7):1219-1229. Epub 2023 Jun 2 doi: 10.1002/acn3.51816. PMID: 37265148Free PMC Article
Ogasawara M, Nishino I
Neuromuscul Disord 2021 Oct;31(10):968-977. Epub 2021 Sep 17 doi: 10.1016/j.nmd.2021.08.015. PMID: 34627702
Amburgey K, Acker M, Saeed S, Amin R, Beggs AH, Bönnemann CG, Brudno M, Constantinescu A, Dastgir J, Diallo M, Genetti CA, Glueck M, Hewson S, Hum C, Jain MS, Lawlor MW, Meyer OH, Nelson L, Sultanum N, Syed F, Tran T, Wang CH, Dowling JJ
Neurology 2021 Mar 9;96(10):e1425-e1436. Epub 2021 Jan 4 doi: 10.1212/WNL.0000000000011458. PMID: 33397769Free PMC Article
Cassandrini D, Trovato R, Rubegni A, Lenzi S, Fiorillo C, Baldacci J, Minetti C, Astrea G, Bruno C, Santorelli FM; Italian Network on Congenital Myopathies
Ital J Pediatr 2017 Nov 15;43(1):101. doi: 10.1186/s13052-017-0419-z. PMID: 29141652Free PMC Article
Schnitzler LJ, Schreckenbach T, Nadaj-Pakleza A, Stenzel W, Rushing EJ, Van Damme P, Ferbert A, Petri S, Hartmann C, Bornemann A, Meisel A, Petersen JA, Tousseyn T, Thal DR, Reimann J, De Jonghe P, Martin JJ, Van den Bergh PY, Schulz JB, Weis J, Claeys KG
Orphanet J Rare Dis 2017 May 11;12(1):86. doi: 10.1186/s13023-017-0640-2. PMID: 28490364Free PMC Article

Therapy

van Kleef ESB, van de Camp SAJH, Groothuis JT, Erasmus CE, Gaytant MA, Vosse BAH, de Weerd W, Verschuuren-Bemelmans CC, Medici-Van den Herik EG, Wallgren-Pettersson C, Küsters B, Schouten M, van Engelen BGM, Ottenheijm CAC, Doorduin J, Voermans NC
Neuromuscul Disord 2024 Oct;43:29-38. Epub 2024 Aug 3 doi: 10.1016/j.nmd.2024.08.001. PMID: 39180840
van Kleef ESB, Langer D, van Engelen BGM, Ottenheijm CAC, Voermans NC, Doorduin J
J Neuromuscul Dis 2023;10(5):825-834. doi: 10.3233/JND-221665. PMID: 37458044Free PMC Article
Naddaf E, Milone M, Kansagra A, Buadi F, Kourelis T
Neurology 2019 Jul 16;93(3):e298-e305. Epub 2019 Jun 5 doi: 10.1212/WNL.0000000000007777. PMID: 31167932
Wang M, Lei L, Chen H, Di L, Pang M, Lu Y, Lu L, Shen XM, Da Y
Neuromuscul Disord 2017 Oct;27(10):942-946. Epub 2017 May 11 doi: 10.1016/j.nmd.2017.05.007. PMID: 28606401

Prognosis

Perry L, Stimpson G, Singh L, Morrow JM, Shah S, Baranello G, Muntoni F, Sarkozy A
Ann Clin Transl Neurol 2023 Jul;10(7):1219-1229. Epub 2023 Jun 2 doi: 10.1002/acn3.51816. PMID: 37265148Free PMC Article
Amburgey K, Acker M, Saeed S, Amin R, Beggs AH, Bönnemann CG, Brudno M, Constantinescu A, Dastgir J, Diallo M, Genetti CA, Glueck M, Hewson S, Hum C, Jain MS, Lawlor MW, Meyer OH, Nelson L, Sultanum N, Syed F, Tran T, Wang CH, Dowling JJ
Neurology 2021 Mar 9;96(10):e1425-e1436. Epub 2021 Jan 4 doi: 10.1212/WNL.0000000000011458. PMID: 33397769Free PMC Article
Naddaf E, Milone M, Kansagra A, Buadi F, Kourelis T
Neurology 2019 Jul 16;93(3):e298-e305. Epub 2019 Jun 5 doi: 10.1212/WNL.0000000000007777. PMID: 31167932
Schatz UA, Weiss S, Wenninger S, Schoser B, Muss WH, Bittner RE, Schmidt WM, Schossig AS, Rudnik-Schöneborn S, Baumann M
Neurology 2018 Oct 30;91(18):e1690-e1694. Epub 2018 Oct 5 doi: 10.1212/WNL.0000000000006428. PMID: 30291184
Cassandrini D, Trovato R, Rubegni A, Lenzi S, Fiorillo C, Baldacci J, Minetti C, Astrea G, Bruno C, Santorelli FM; Italian Network on Congenital Myopathies
Ital J Pediatr 2017 Nov 15;43(1):101. doi: 10.1186/s13052-017-0419-z. PMID: 29141652Free PMC Article

Clinical prediction guides

Haidong L, Yin L, Ping C, Xianzhao Z, Qi Q, Xiaoli M, Zheng L, Wenhao C, Yaguang Z, Qianqian Q
Acta Neurol Belg 2024 Feb;124(1):91-99. Epub 2023 Jul 31 doi: 10.1007/s13760-023-02333-8. PMID: 37525074Free PMC Article
Gurgel-Giannetti J, Souza LS, Yamamoto GL, Belisario M, Lazar M, Campos W, Pavanello RCM, Zatz M, Reed U, Zanoteli E, Oliveira AB, Lehtokari VL, Casella EB, Machado-Costa MC, Wallgren-Pettersson C, Laing NG, Nigro V, Vainzof M
Int J Mol Sci 2022 Oct 9;23(19) doi: 10.3390/ijms231911995. PMID: 36233295Free PMC Article
van Kleef ESB, van Doorn JLM, Gaytant MA, de Weerd W, Vosse BAH, Wallgren-Pettersson C, van Engelen BGM, Ottenheijm CAC, Voermans NC, Doorduin J
Neuromuscul Disord 2022 Aug;32(8):654-663. Epub 2022 Jun 22 doi: 10.1016/j.nmd.2022.06.009. PMID: 35803773
Amburgey K, Acker M, Saeed S, Amin R, Beggs AH, Bönnemann CG, Brudno M, Constantinescu A, Dastgir J, Diallo M, Genetti CA, Glueck M, Hewson S, Hum C, Jain MS, Lawlor MW, Meyer OH, Nelson L, Sultanum N, Syed F, Tran T, Wang CH, Dowling JJ
Neurology 2021 Mar 9;96(10):e1425-e1436. Epub 2021 Jan 4 doi: 10.1212/WNL.0000000000011458. PMID: 33397769Free PMC Article
Wang M, Lei L, Chen H, Di L, Pang M, Lu Y, Lu L, Shen XM, Da Y
Neuromuscul Disord 2017 Oct;27(10):942-946. Epub 2017 May 11 doi: 10.1016/j.nmd.2017.05.007. PMID: 28606401

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