G-Actin was extracted from the acetone powder of the dark muscle of mackerel Pneumato phorus japonicus japonicus, and purified by a method which essentially consisted of polymerization in 0.1M KCl containing 0.1mm MgCl2, treatment with 0.6M KCI, and Sephadex G-200 gel filtration . Sedimentation constant (s020,w) of the dark muscle actin was 2.9S. The molecular weight was determined to be 42,000...

A 44-year old male estate labourer presented with severe muscle pains and passing dark urine of two days duration. Six hours prior to the onset of symptoms, he sustained a fall from height of about six feet. The muscle pains progressively worsened over the next two days and he was almost immobilised due to severe generalised muscle pain by the second day of the illness. On the same day, he noti...

Rhabdomyolysis is syndrome characterized by muscle necrosis which causes the release of myoglobin into the bloodstream. The manifestations of this syndrome range from asymptomatic elevation of muscle enzymes to life-threatening cases associated with extremely high enzyme levels, electrolyte imbalance and acute renal failure. Symptoms of rhabdomyolysis include dark urine, muscle weakness and fat...

BACKGROUND Infraorbital dark circles refer to the conditions that present with darkness of the infraorbital eyelids. Although it is not a medical concern, it can be a cosmetic concern for a large number of individuals. Moreover, clear definition and possible causes have not been elucidated. OBJECTIVE To review the possible causes and treatment options for infraorbital dark circles. METHODS ...

The objectives of this study were to define a beef carcass population in terms of muscle color, ultimate pH, and electrical impedance; to determine the relationships among color, pH, and impedance and with other carcasses characteristics; and to determine the effect of packing plant, breed type, and sex class on these variables. One thousand beef carcasses were selected at three packing plants ...

OBJECTIVE We wanted to demonstrate the temporal changes of the magnetic resonance imaging (MRI) findings in experimentally-induced intramuscular hematomas in rats and to correlate these data with the concurrent pathologic observations. MATERIALS AND METHODS Intramuscular hematoma was induced in 30 rats. The MR images were obtained at 1, 4, 7 and 10 days and at 2, 3, 4, 6 and 8 weeks after mus...

Peripheral nerve injuries can cause disabilities, social or economic problems. Melatonin, the secretory product of the pineal gland has antioxidant and anti-inflammatory actions. The aim of the present study was to investigate the effect of melatonin on the recovery of sciatic nerve after injury, comparing its effect when given in the light or the dark periods. Forty adult male Albino rats were...