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Biomedical subjects

T Mazur

Publications and source records attributed to T Mazur.

At least 37 records · Page 2Linked to original sources
PubMed1982

Naegleria fowleri in cooling waters of power plants.

Six strains of nonvirulent and three strains of virulent variants of Naegleria fowleri amoebae were isolated from the examined cooling water samples from 9 power plants. The virulent variants were obtained solely from effluents discharged from power plants with a closed-circuit cooling N. fowleri was not detected outside the reach of the thermal pollution. A disinfection of out-flowing cooling water seems to be an unnecessary investment in our climate. Warm discharge water should under no conditions be used directly for sports and recreational purposes.

Amoeba↗
PubMed1982

Naegleria fowleri in thermally polluted waters).

Two complexes of lakes and canals supplying water for two electric power plants, their steam condensors and an adjoining river were investigated by means of culture methods for the presence of Naegleria fowleri in Poland in the period from 1974 to 1980. Sixty-four strains of N. fowleri were isolated, 13 isolates being virulent for mice when instilled intranasally. These strains were found in the steam condensor of the power station A and in waters polluted with warm water of this plant. Pathogenic N. fowleri strains occurred also in an adjoining river connected with the water system of the power plant. The results show the possible role of the steam condensor A as an incubator and regular source of pollution with pathogenic amoebae for its own system of cooling waters and even the adjoining river.

Amoeba↗
PubMed1980

Micropenis. I. Criteria, etiologies and classification.

A micropenis is an abnormally small penis with a normal configuration. This finding constitues a sign not a diagnosis. The etiologies may be classified as hypogonadotropic hypogonadism, primary hypogonadism, androgen insensitivity, or idiopathic; among 45 patients, the respective percentages in these categories were 31, 24, 2 and 7% with 36% as yet undiagnosed. Various clinical syndromes may include a micropenis and can be classified in one of the etiologic categories. This paper provides the criteria for determining the presence of a micropenis. A phallic length which is 2.5 or more standard deviations below the mean should be considered as abnormal; for an infant of 0 to 5 months of age, the lower limit is 1.9 cm. The technique of penile measurement, determination of etiology, guidelines for sex of rearing and psychologic, surgical and medical management are discussed.

Counseling↗
PubMed1980

Micropenis. II. Hypogonadotropic hypogonadism.

This paper documents the case histories of 14 patients with hypogonadotropic hypogonadism and micropenis (penile length below 2.5 SD from the mean for the patient's chronlogical age, or for age corresponding to stage of sexual development). Nine of the patients were raised as males. Five of them received androgen for the purpose of stimulating penile growth: two realized normal adult penile length (-0.2 and -2.1 SD from normal mean length) whereas the other three had penile lengths significantly below the mean (-3.6, -4.6 and -5.2 SD from normal mean length). These data suggest that among hypogonadotropic patients with micropenis, those with prepubertal penile lengths between 2.5 and 3 SD below the mean may develop an adult penis of a length within the normal range. However, for those presenting with a shorter phallus, the expectation is that penile length will remain greater than 2 SD below the mean.

Child, Preschool↗
PubMed1980

Micropenis. III. Primary hypogonadism, partial androgen insensitivity syndrome, and idiopathic disorders.

This paper, the third in a series, presents data from 28 patients with micropenis categorized as primary hypogonadism (11 subjects), partial androgen insensitivity (1 subject), idiopathic (6 subjects), and etiology undetermined (10 subjects). Among the 11 patients with primary hypogonadism, 8 presented with various degrees of gonadal dysgenesis, 1 was a true hermaphrodite and 2 had the Robinow syndrome. Nine of the 28 patients were raised as females: 5 with primary hypogonadism and 4 with undetermined etiology. Eleven of the 19 patients raised as males received androgen stimulation during prepubertal years and responded with penile growth. However, this growth response was temporary and did not appear to be predictive of eventual adult size of the penis. Generally, the prestimulation size of this group of patients is more predictive of adult penile size. Only 7 of the patients raised as males have attained adult somatic growth. Three out of the three with primary hypogonadism, the subject with partial androgen insensitivity, and one of three with idiopathic micropenis have below-normal adult penile length. These limited data suggest that growth potential of the micropenis may be greater among the patients with an idiopathic state than among those with primary hypogonadism and partial androgen insensitivity.

Adolescent↗
PubMed1979

Counseling after resection of the penis.

Surgery is the most effective means of controlling or curing cancer of the penis, but management of a patient with penile cancer encompasses more than excising the lesion. Anticipatory guidance and counseling are required components of total patient care. An integral part of counseling is psychotherapy, including marital and sex therapy. This comprehensive management program is best provided by a team of health care professionals including the family physician.

Body Image↗
PubMed1977

Electrophoretic characterization of small free-living Amoebae.

Disc electrophoresis was employed in an attempt to determine its usefulness as a means of differentiating and classifying some free-living species of amoebae. The Rp values and the percentage of similarity of the protein bands were used as taxonomic criteria. Some species of the genera Hartmanella and Naegleria were examined. The protein patterns of all species studied were highly reproducible. Four strains of Hartmannella castellanii showed an absolute identity to the original H. castellanii strain. One strain isolated by Neff and H. rhysodes were similar to all the other strains although their protein patten were not completely identical. On the other hand, H. culbertsoni, H. astronyxis and H. lammellipodia were different from all the other examined species of Hartmannella. Pathogenic N. fowleri-strains were identical to each other and were different in their protein patterns from non-pathogenic N. gruberi strain. The similarities and differences of protein bands of strains of ameobae and their correlations with other attributes were discussed. The results have shown that the disc electrophoresis appears useful in differentiating between species of Hartmannella and Naegleria.

Amoeba↗
PubMed1975

Families of seven male-to-female transexuals after 5-7 years: Sociological sexology.

Four black and three whilte families have a male-to-female transexual member surgically reassigned more than 5 years ag. The black families were more open than the white in declaring the reassignment within the family and community. Thereby they relieved themselves and the transexual member of a need for deception, defiance, or defensiveness, and they were less scheming and manipulative. Without the anxiety of concealment, they could feel more positive about sex reassignment as a form of rehabilitation. A formal public declaration of sex reassignment, analogous to a declared change of citizenship, would be advantageous in transexual rehabilitation.

Adult↗