Case:
A 7-year-old boy presented with left femoral and obturator nerves (ONs) palsy after an asthmatic attack with a viral prodrome, and his right lower limb was unaffected. He was diagnosed with acute flaccid myelitis (AFM) after positive spinal magnetic resonance imaging findings. After contralateral ON to femoral nerve transfer (CONFNT), his left quadriceps was reinnervated at 5.5 months, full knee extension was recovered at 14 months, and good functional outcomes were achieved at 31 months.
Conclusions:
This first clinical report on CONFNT demonstrated a feasible good alternative in treating young patients with AFM with unilateral L2-L4 palsy and short duration of deficit.
Metal-4,4',4",4"'-tetracarboxyphthalocyanine [Metal = Fe(III), Co(II), Mt-taPc] were synthesized by the hydrolysis of metal-4,4 ',4 ",4 "'-tetracarboxamidephthalocyanine (Mt-tamPc). These metal-taPc are soluble in water and in aprotic polar solvents such as N.N '-dimethylformamide. Poly(styrene) bonded Mt-taPc was synthesized by Friedel-Crafts reaction of poly(styrene) with Mt-taPc tetraacid chloride. The polymers contain about 4 mole-% Mt-Pc rings which are covalently bonded to poly(styrene). The decomposition reaction of hydrogen peroxide by catalysis with polystyrene containing Mt-Pc rings was carried out in heterogeneous aqueous media at pH 7,O. The polymer catalysts show a catalase-like activity. The activation energies with the polymer bonded Mt-Pc were found to be about half of those with Mt-taPc.From continuous flow experiments in a column, the polymer attached catalyst was found to be very stable, compared with free Mt-taPc.
The decomposition reaction of hydrogen peroxide was carried out by using Fe(II1)-3,4,3 ',4',3 ",4'~,3"',4"'-octacarboxyphthalocyanine (Fe(II1)-oaPc) as a catalyst, which has previously been reported by Boston et al. Fe(II1)-oaPc is a remarkably effective catalyst for the reaction, compared with hemin, other metal-phthalocyanine compounds, or other iron complexes such as [Fe(III)-(bipy),]X,. The kinetics of this reaction was also investigated in the pH range 5 3 -10,5 by measuring the initial velocity, V,, of the increasing concentration of 0, using a Warburg respirometer. The reaction proceeds according the catalase-like mechanism. On the basis of the results of Sigel et al., the reaction mechanism is discussed.
The oxidation of guaiacol by the Fe(II1)-oaPc/H,O, system is studied by using a stopped flow spectrophotometer. The maximum rate of oxidation reaction by this system amounts to about 1 000 times that in the absence of &O,. The kinetic investigation indicates that the reaction can be regarded as "an ordered two-substrates reaction" and that the oxidation reaction proceeds according to the peroxidase-like mechanism. The reaction is inhibited by adding cyanide. The structure of oxidation products is also discussed. The catalytic action of Fe(II1)-oaPc in the presence of various polyelectrolytes such as poly(viny1amine) is also investigated, varying the pH values, and the environmental effect of the polymers in their catalytic behavior is discussed.
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