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Hypotonia is a state of low muscle tone [1] (the amount of tension or resistance to stretch in a muscle), often involving reduced muscle strength. Hypotonia is not a specific medical disorder, but a potential manifestation of many different diseases and disorders that affect motor nerve control by the brain or muscle strength.
Integrin α7 weakness which is present at birth, poor muscle tone with late walking, loss of muscle tissue, intellectual disability.Furthermore, the creatine kinase level was elevated. [28] Fukuyama CMD-in Western countries this type of CMD is rare, but it is common in Japan. The effects this disease has on infants are on a spectrum of severity.
It is characterized by generalized muscle weakness and low muscle tone. In its severest form, affected babies often die from respiratory failure. [6] To date, 9 gene mutations have been found to cause nemaline myopathy. 6 of the identified genes are associated with the actin filament, which is the basis for muscle contraction.
Short-chain acyl-coenzyme A dehydrogenase deficiency affected infants will have vomiting, low blood sugar, a lack of energy , poor feeding, and failure to gain weight and grow. Additional features of this disorder may include poor muscle tone ( hypotonia ), seizures, developmental delays, and microcephaly .
PWS symptoms can range from poor muscle tone during infancy to behavioral problems in early childhood. Some symptoms often found in infants, besides poor muscle tone, are a lack of eye coordination; almond-shaped eyes; thin upper lip; and, due to poor muscle tone, lack of a strong sucking reflex.
The afflicted offspring typically show skeletal muscle hypotonia (i.e., poor muscle tone) and weaknesses that are most prominent in head and neck muscles and cause facial diplegia (i.e., paralysis or weakness of the skeletal muscles on both sides of the face), reduced control of swallowing; weak crying, sucking, and chewing; the inability to ...
Severe propionic acidemia lead to symptoms already seen in newborns. [7] Symptoms include poor feeding, vomiting, dehydration, acidosis, low muscle tone , seizures, and lethargy. The effects of propionic acidemia quickly become life-threatening. [citation needed]
Infants born with congenital hypothyroidism may show no effects, or may display mild effects that often go unrecognized as a problem. Significant deficiency may cause excessive sleeping, reduced interest in nursing, poor muscle tone, low or hoarse cry, infrequent bowel movements, significant jaundice, and low body temperature. [citation needed]