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Biomedical subjects

C E Horton

Publications and source records attributed to C E Horton.

At least 73 records · Page 4Linked to original sources

Aesthetic surgery: effects of rhinoplasty on the social perception of patients by others.

Based on contemporary social psychological theory and research, the aesthetic appeal of one's physical appearance can have considerable influence on others--on social attraction, attitudes, attributions, and actions, which in turn can affect one's psychosocial experiences and development. From this perspective, the present controlled experiment represents a modified and extended replication of recent research testing the hypothesis that aesthetic surgeries such as rhinoplasty produce improvements in physical attractiveness that foster more favorable personality attributions by others. The hypothesis was largely supported--for male and female perceivers of patients of both sexes and various ages. The implications and limitations of these findings as well as the directions for further fruitful investigation are discussed.

Adolescent↗

Mechanisms of calcification in Peyronie's disease.

Scanning and transmission electron micrographs demonstrate a calcification process in the penile plaques of patients with Peyronie's disease. Osteoid formation originates from vascular lumina via osteoblast-like cells, which align the calcified plaque. These cells are surrounded gradually by calcified connective tissue. Collagen fibers demonstrate calcification and decreased periodicity.

Calcinosis↗

Cell culture of Peyronie's disease plaque and normal penile tissue.

Cell cultures derived from Peyronie's disease plaque and normal penile tissue were characterized morphologically and examined by immunofluorescence for actin cable formation, and their growth properties were compared. Relative to normal penile cell cultures which grew as contact inhibited, poorly refractile fibroblast-like cells, plaque derived cell cultures consisted of round and spindle shaped cells that were more refractile and exhibited random crisscross growth patterns. Scanning electron microscopy of plaque derived cell cultures revealed changes in cell surface topography characterized by the appearance of surface membrane blebs amd microvilli. Transmission electron microscopy demonstrated cells containing organized cytoplasmic microfilament bundles and nuclear indentations which resembled myofibroblasts. Such alterations were less extensive or absent in normal penile cell cultures. The amount and extent of actin cable formation was increased in plaque derived compared to normal penile cell cultures. Plaque derived cells also exhibited differences in growth properties and grew to higher saturation densities than their normal counterparts. These results demonstrate that cells derived from Peyronie's disease plaque can be grown in vitro and that these cells are morphologically altered and have an enhanced proliferative capacity. The availability of these cell cultures will permit studies directed at understanding the etiology and pathogenesis of Peyronie's disease.

Actins↗

Hypospadias cripples.

The term "hypospadias cripple" is an apt one. The successful surgery of this condition requires radical correction of all deformities, preferably in a single stage. In doing this one must be conversant with virtually all the existing methods of hypospadias repair and be able to apply them appropriately.

Disorders of Sex Development↗

Pectoralis "paddle" myocutaneous flaps. The workhorse of head and neck reconstruction.

The pectoralis paddle myocutaneous flap is extremely dependable and provides an added advantage of covering the vital structures of the neck with adequate length without excessive bulk. The donor defect is more acceptable than any we have previously encountered. The use of this skin muscle paddle in irradiated necks has distinct advantages. In addition, the ability to carry bony segments for use in mandibular reconstruction proved a distinct advantage in the two cases in which it was used.

Female↗

Utricular configuration in hypospadias and intersex.

To evaluate the incidence and significance of an enlarged prostatic utricle in hypospadiac patients without underlying intersex 44 patients with the meatus located in the perineum, penoscrotal junction or proximal two-thirds of the penis were evaluated with cystourethroscopy immediately before the operation. There was an abnormally enlarged utricle in 57 per cent of the perineal, 10 per cent of the penoscrotal and none of the penile hypospadias and intersex revealed a high incidence of enlarged utricle or the presence of a vagina masculinus. Utricular enlargement in itself doses not indicate intersexuality but careful cystoscopic examination of its vault needs to be undertaken, searching for a cervix. An enlarged utricle can be a manifestation of delayed mullerian duct regression or decreased androgenic stimulation of the urogenital sinus.

Abnormalities, Multiple↗

Fistulas of the penile urethra.

Urethral fistula, the most common complication of urethroplasty, is discussed. There has been no classification for these disorders, and the plethora of reconstruction procedures available often leads to confusion. The classification presented here for acquired fistulas attempts to give direction in the selection of appropriate management in individual cases. Early, acute fistulas are managed conservatively. In the case of mature single fistulas, local tissue may be used for surgical repair. These are subdivided, depending on the size of the opening. Chronic, multiple, large lesions draining the urethra require tissue from a distance for repair. In severe surgical cripples, a total new urethral reconstruction will be required. A new technique to expose the urethra, allowing correction of urethral fistulas with stricture and diverticulum, is described.

Humans↗