myotonic reaction - significado y definición. Qué es myotonic reaction
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Qué (quién) es myotonic reaction - definición

PROLONGED CONTRACTION OF MUSCLES
Myotonic disorders; Myotonic; Myatonia; Amyotonia; Thomsen Syndrome; Mytonia

myotonic dystrophy         
  • Histopathology of DM2. Muscle biopsy showing mild myopathic changes and grouping of atrophic fast fibres (type 2, highlighted). Immunohistochemical staining for type-1 ("slow") myosin.
  • 40-year-old with myotonic dystrophy who presented with muscle wasting, bilateral cataracts, and complete [[heart block]]
LONG TERM GENETIC DISORDER THAT AFFECTS MUSCLE FUNCTION
Dystrophia myotonica; Curschmann-Batten-Steinert syndrome; Steinert's disease; Proximal myotonic myopathy; Congenital myotonic dystrophy; PROMM; CMyD; Curschmann-Steinert disease; Myotonic muscular dystrophy; Myotonia atrophica; Curschmann–Batten–Steinert syndrome
¦ noun Medicine a form of muscular dystrophy accompanied by myotonia.
Myotonic dystrophy         
  • Histopathology of DM2. Muscle biopsy showing mild myopathic changes and grouping of atrophic fast fibres (type 2, highlighted). Immunohistochemical staining for type-1 ("slow") myosin.
  • 40-year-old with myotonic dystrophy who presented with muscle wasting, bilateral cataracts, and complete [[heart block]]
LONG TERM GENETIC DISORDER THAT AFFECTS MUSCLE FUNCTION
Dystrophia myotonica; Curschmann-Batten-Steinert syndrome; Steinert's disease; Proximal myotonic myopathy; Congenital myotonic dystrophy; PROMM; CMyD; Curschmann-Steinert disease; Myotonic muscular dystrophy; Myotonia atrophica; Curschmann–Batten–Steinert syndrome
Myotonic dystrophy (DM) is a type of muscular dystrophy, a group of genetic disorders that cause progressive muscle loss and weakness. In DM, muscles are often unable to relax after contraction.
Cascade reaction         
  • Fig. 1: Structure of Routiennocin 1
  • Fig. 2: Representative examples of synthetic targeting using polyring forming processes
  • Heathcock]]'s synthesis of dihydroprotodaphniphylline features a highly efficient cascade involving two aldehyde/amine condensations, a Prins-like cyclization, and a 1,5-hydride transfer to afford a pentacyclic structure from an acyclic starting material.
  • '''Scheme 10.''' Electrocyclic cascade in the total synthesis of (–)-colombiasin A
  • '''Scheme 11.''' Pericyclic sequence for the synthesis of [2,2]paracyclophanes
  • '''Scheme 12.''' Rhodium-catalyzed hydroformylation cascade for the preparation of 4''H''-chromens
  • '''Scheme 13.''' Rhodium(II)-carbenoid-initiated cascade in the synthesis of a tigliane
  • '''Scheme 14.''' Gold-catalyzed
formal intramolecular [4+2] cycloaddition of 1,6-enynes
  • '''Scheme 15.''' Proposed cascade process in the formal intramolecular [4+2] cycloaddition of 1,6-enynes
  • '''Scheme 16.''' Palladium-catalyzed Heck cascade in the enantioselective synthesis of (+)-xestoquinone
  • '''Scheme 1.''' Synthesis of (–)-chloramphenicol via a nucleophilic cascade
  • '''Scheme 2.''' Cascade
reaction in the total synthesis of (±)-pentalenene
  • 797x797px
  • '''Scheme 4.''' Asymmetric synthesis
of ''tetra''-substituted cyclohexane
carbaldehydes via a triple organocatalytic cascade reaction
  • '''Scheme 5.''' Proposed catalytic cycle for the asymmetric triple organocatalytic cascade
  • '''Scheme 6.''' Cascade
radical cyclization in the total synthesis of (±)-hirsutene
  • '''Scheme 7.''' Cascade radical cyclization in the synthesis of (–)-morphine
  • '''Scheme 8.''' Pericyclic cascade in the synthesis of endiandric acid derivatives
  • '''Scheme 9.''' Pericyclic cascade in the total synthesis of (–)-vindorosine
CHEMICAL PROCESS
Tandem reaction; Domino reaction; Negishi zipper reaction; Negishi-Zipper reaction
A cascade reaction, also known as a domino reaction or tandem reaction, is a chemical process that comprises at least two consecutive reactions such that each subsequent reaction occurs only in virtue of the chemical functionality formed in the previous step.Tietze, L.

Wikipedia

Myotonia

Myotonia is a symptom of a small handful of certain neuromuscular disorders characterized by delayed relaxation (prolonged contraction) of the skeletal muscles after voluntary contraction or electrical stimulation.

Myotonia is the defining symptom of many channelopathies such as myotonia congenita, paramyotonia congenita and myotonic dystrophy.

Generally, repeated contraction of the muscle can alleviate the myotonia and relax the muscles thus improving the condition, however, this is not the case in paramyotonia congenita. This phenomenon is known as the "warm-up" reflex and is not to be confused with warming up before exercise, though they may appear similar. Individuals with the disorder may have trouble releasing their grip on objects or may have difficulty rising from a sitting position and a stiff, awkward gait.

Myotonia can affect all muscle groups; however, the pattern of affected muscles can vary depending on the specific disorder involved.

People with disorders involving myotonia can have life-threatening reactions to certain anaesthetics called anaesthesia-induced rhabdomyolysis.