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Cathepsin B in the bovine ciliary body and iris was studied biochemically using alpha-N-benzoyl-D,L-arginine-2-naphthylamide as substrate. The enzyme was purified to 210-fold from the autolyzed extract. The partially purified enzyme had a pH optimum at 6.0 and a molecular weight of 27,000. The apparent Km value for the substrate was 1.6 mM. The enzyme was(More)
Intrauterine laser photocoagulation for twin-twin transfusion syndrome (TTTS) needs accurate in-situ recognition of placental vascular anastomosis. Because the conventional procedure is highly dependent upon the operators' skill and experience, we developed a new way to visualize the placental vascular network by a rigid-type fluorescence endoscope coupled(More)
INTRODUCTION Traditionally, laparoscopy has been based on 2-D imaging, which represents a considerable challenge. As a result, 3-D visualization technology has been proposed as a way to better facilitate laparoscopy. We compared the latest 3-D systems with high-end 2-D monitors to validate the usefulness of new systems for endoscopic diagnoses and treatment(More)
BACKGROUND Fetal surgery is receiving considerable attention. However, surgeons must have great skill to perform this surgery. For assisting with the operation, the three-dimensional (3D) endoscope is very useful because it allows the surgeon depth perception. However, the diameter of existing 3D endoscopes is approximately 10 mm. Therefore, the authors(More)
A 29-day-old infant born of consanguineous parents had type 1 hyperlipoproteinaemia associated with lipaemia retinalis. Biochemical analyses disclosed hypertriglyceridaemia, hyperchylomicronaemia, and lipoprotein lipase deficiency. Ophthalmoscopically all retinal vessels had the creamy appearance of lipaemia retinalis. The plasma lipoprotein levels and(More)
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We studied the in vitro digestion of lens crystallin by two fractions (Fractions A and B) of acidic lens-protein degrading activity from the bovine ciliary body. With whole lens crystallin as substrate, Fraction A degraded beta L-crystallin most significantly, and beta H-, gamma-, and alpha-crystallins moderately. Fraction B degraded alpha-crystallin most(More)