The presence of Cajal-Retzius cells in the adult human prefrontal and visual cortices has been demonstrated with calcium binding protein immunocytochemistry and NADPH-diaphorase histochemistry. These cells expressed parvalbumin, calbindin and calretinin calcium binding proteins and displayed NADPH-diaphorase enzyme activity. The three basic morphological profiles-horizontal, pyriform and multip...

Edgar, G. W. F. (1957). In CerebralLipidoses, p. 48, ed. J. N. Cumings. Blackwell, Oxford. -(1961a). In Encephalitides, p. 648, ed. L. van Bogaert, J. Radermecker, J. Hozay, and A. Lowenthal. Elsevier, Amsterdam. (1961b). Neurochemistry Symposium. 7th International Congress of Neurology. Rome. (In the press.) Einarson, L., and Stromgren, E. (1961). Acta Jutland, 33, 1. Hallervorden, J. (1957). ...

The applications and advantages of the cryostat are receiving increasing recognition for the preparation of fresh frozen sections for histochemistry, fluorescence microscopy, and surgical or autopsy pathology.' " With the cryostat, it is possible to prepare thin unwrinkled sections of single or multiple pieces of fresh tissue. Tissues that are very difficult to cut by means of the conventional ...

An attempt was made to find a correlation between specific electromyography (EMG) abnormalities with histological findings in muscle biopsies (MB) in 100 patients with neuromuscular disorders. Quantified EMG and MB with histochemistry was made in the same muscle, but on the opposite side, within a period of 3 weeks. The isolated findings of EMG and MB were analysed with a computer through a chi...

The effect of decapitation on semitendinosus muscle growth and development was studied in the fetal pig. Pig fetuses were decapitated at 45 d of gestation and histochemical and biochemical analyses conducted at 110 d of gestation. Decapitation prevented or delayed the conversion of secondary fibers from Type II to Type I histochemistry as is characteristic of the normal semitendinosus. Morpholo...

The testis is an organ of lipid synthesis and catabolism. The testicular duct system is important for transportation, maturation and storage of sperms. The glands of the ampulla provide the first notable carbohydrate substrate to the semen (Pineda and Faulkner, 1980). The present work was undertaken to observe the histochemistry of carbohydrates, proteins and lipids during postnatal histologica...

The present study was designed to identify alkaline phosphatases in non-permeabilized hyphal cells of the fungus Neurospora crassa by staining these enzymatic activities with a modified azo dye coupling method. Our strategy allowed the identification of three non-specific alkaline phosphatase activities, one of them possibly being a novel putative enzyme, which is not responsive to either Mg(2+...

Uncinate processes extend off the vertebral ribs in most species of bird. The processes are a crucial component of ventilatory mechanics, being involved in inspiration and expiration. Here we examine the pattern of ossification of the uncinate processes using histochemistry and biomechanical testing in developing domestic turkeys (Meleagris gallopavo). Ossification begins just before hatching, ...

Three months following a right sided acute epididymitis a 62 year old patient presented with a painless right testicular swelling. Physical examination, scrotal ultrasound and operative exploration suggested malignancy. However, after inguinal orchiectomy a benign pseudolymphoma of the testis was revealed by pathological examination. A pseudolymphoma is a rare benign lesion which can only be di...

Structural and molecular changes in the guinea pig organ of Corti were studied using histochemistry and electron microscopy in the course of drug-induced hair cell degeneration. Actin filaments disappear from the cuticular plate and the stereocilia. An actin-rich bridge appears in the apical region of dying hair cells. Two supporting cells form a scar for a given hair cell. The supporting cells...