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Biomedical subjects

J D Peereboom-Wynia

Publications and source records attributed to J D Peereboom-Wynia.

At least 19 recordsLinked to original sources

Alopecia areata in children: treatment with diphencyprone.

We assessed the efficacy of diphencyprone (DPCP) treatment in a total of 26 children with alopecia areata (AA). Sixteen children had alopecia areata totalis (AAT) and 10 had alopecia areata localis (AAL). DPCP is an absolute contact sensitizer. Twenty-five children could be sensitized with a 2% DPCP solution, whereas one child could not be sensitized. Patients were treated, once a week for at least 3 months, for up to 1 year. Twenty-one of the 25 (84%) children showed hair regrowth to a greater or lesser extent after DPCP treatment. Eight of the 25 (32%) children showed cosmetically acceptable hair regrowth. Cosmetically acceptable regrowth at the end of the study was seen in four of the 15 (27%) children with AAT and in four of the 10 (40%) children with AAL. These results are comparable with those reported in an earlier study in children with AA. Our opinion is that DPCP is a beneficial therapeutic agent in children with severe AAT and AAL showing no spontaneous remission.

Adolescent↗

[Turning white overnight, is it possible?].

A female aged 64 reported sudden whitening of the hair. Analysis proved it to be alopecia areata. Rarely, alopecia areata is of diffuse onset. If in such a case it is mostly the pigmented hairs that are lost the impression can be made of a person with grey hair turning white overnight. A review is given of some historical cases which may have been caused by this phenomenon.

Alopecia Areata↗

The trichogram as a prognostic tool in alopecia areata.

The value of the trichogram as a prognostic tool in alopecia areata was investigated in 93 patients with not more than three lesions on the scalp. Evaluation of the clinical features was one year later. In each patient, two regions were investigated: the margin of one of the lesions and the control region. In 80% of the patients with a normal trichogram at the margin of the lesional hair at the first visit, hair growth was restored one year later, whereas in those with an abnormal trichogram, hair growth was restored in 62.5%. In 11.5% of the patients an alopecia totalis or universalis developed. At the margin of the lesion, no significant association was observed between the trichogram and the clinical features. In the control region, however, the prognosis was much better (p < 0.001) in patients with a normal trichogram than in those with an abnormal trichogram. Out of the 62 patients with a normal trichogram, hair growth was restored in 53 (85%), whereas out of the 31 patients with an abnormal trichogram hair growth was restored in only 6 (19%). These findings indicate that a normal trichogram in the control region is a valuable prognostic tool in alopecia areata.

Adolescent↗

Crystalline cataract and uncombable hair. Ultrastructural and biochemical findings.

A 7-year-old girl was found to have a progressive axial crystalline cataract located in the embryonal, fetal, and infantile nucleus. She also had the unknown association of crystalline cataract with uncombable hair. Samples of the aspirate after extracapsular cataract extraction (ECCE) showed elongated, trigonal crystals on scanning electron microscopy. On transmission electron microscopy, the crystals were surrounded by a membrane sometimes consisting of up to 30 concentric layers. The crystals were found to contain carbon, oxygen, nitrogen, sulfur, and disulfide bonds. The findings suggest that a major constituent of the crystals was a sulfur-containing aminoacid, probably cystine. Protein analysis of the remaining lens material showed elevated alpha-, beta 2-, and gamma 2- crystallin levels. Analysis of the hair root status showed hair loss in the resting phase of the hair cycle with abnormal sheathing in most hairs that were in the growth phase.

Cataract↗

Scanning electron microscopy comparing exclamation mark hairs in alopecia areata with normal hair fibres, mechanically broken by traction.

A scanning electron microscope was used to compare the distal ends of exclamation mark hairs from alopecia areata patients with the fracture surface of normal hair fibres, mechanically broken by traction. The exclamation mark hairs shows minimal damage to the cuticular cell pattern of the hair shaft. Where the cuticle was absent, cortex and medulla showed low-density features fanning out into a fringe-like structure at the distal ends. The fracture surfaces of normal hair fibres, mechanically broken by traction showed a markedly abnormal cuticular scale pattern, whereas the features of cortical and medullary tissue were normal. These morphological differences between the fracture surface of exclamation mark hairs and normal hair fibres, mechanically broken by traction, may enhance our understanding of the pathogenesis of alopecia areata.

Adult↗

Reduction in undesired sexual hair growth with anandron in male-to-female transsexuals--experiences with a novel androgen receptor blocker.

The effect of Anandron, a novel non-steroidal anti-androgen, on the reduction in sexual hair growth of 14 male-to-female transsexuals was investigated. Anandron (300 mg/day) alone for 8 weeks increased serum testosterone levels (mean: 19.2 +/- 6.1 to 44.9 +/- 11.5 mmol/l) and serum oestradiol levels (mean: 0.08 +/- 0.02 to 0.24 +/- 0.06 nmol/l). From Weeks 9 to 20, ethinyloestradiol (100 micrograms/day) was co-administered. Hair growth scores, hair weight and the number of terminal hairs decreased significantly in the first 8 weeks and continued to decrease during the second period in the areas assessed (the trunk and the limbs). In addition, there was a subjective decrease in hair growth on the limbs and the trunk, but not on the face. We suggest that Anandron alone and in conjunction with oestrogens is effective in reducing sexual hair growth on the limbs and the trunk.

Adult↗

Juvenile versus maturity-onset alopecia areata--a comparative retrospective clinical study.

We report a retrospective study of 209 patients presenting with alopecia areata (AA) at our skin department during the period 1969-1987, with special reference to possible associations, aetiological factors and the relevance of additional investigations. The patients were divided into two groups: (I) those in whom AA developed during childhood; (II) those in whom AA developed in adult life (greater than or equal to 16 years). The aim of this study was to establish whether there is a difference between juvenile and maturity-onset AA and to consider the value of additional investigations in AA. Juvenile AA is more severe and has a less favourable prognosis than the maturity-onset disease. Statistically significant differences between the two groups were not found with respect to AA type and prevalence of auto-antibodies. Bad prognostic signs in AA were early age of onset, atopy (or first-degree family history) and ophiasis and/or onychodystrophy. Initial thyroid function testing seems advisable in patients with AA. Additional valuable investigations may include hair-root examination, determination of antibodies against thyroid tissue, and serum zinc levels. There are indications that psychosomatic factors may play a role in AA. In our study, psychosomatic factors were found in 29% of the juvenile AA and in 17% of the maturity-onset AA patients.

Adolescent↗

The effect of cyproterone acetate on hair roots and hair shaft diameter in androgenetic alopecia in females.

Twenty female patients suffering from androgenetic alopecia were treated during one year with 50 micrograms ethinyloestradiol plus 2 mg cyproterone acetate and additional 20 mg cyproterone acetate on days 5-20 of the menstrual cycle. The control group consisted of eight untreated female patients with androgenetic alopecia. The parameters used to evaluate therapeutic results were trichogram, hair shaft diameter of full anagen and number of hairs measuring less than 40 microns. Hair roots were epilated from two locations of the scalp: fronto-cranial and left temporal (reference point). The trichogram of the fronto-cranial scalp region showed an increase of anagens as well as a decrease of telogens. These changes were statistically highly significant. Further, there was a decrease of dysplastic/dystrophic forms. The left temporal scalp region showed no significant differences. The mean hair shaft diameter of full anagen (n = 8) increased, while the number of hairs measuring less than 40 microns (n = 8) decreased. The last two findings showed no statistically significant differences. The therapeutic results warrant the conclusion that cyproterone acetate seems to be effective in androgenetic alopecia in women.

Adolescent↗

A preliminary study of the effect of 11a-hydroxyprogesterone on the hair growth in men suffering from androgenetic alopecia.

Ten male patients suffering from androgenetic alopecia were treated during one year with a lotion containing 1% 11a-hydroxyprogesterone. Eight untreated patients served as control group. The parameters used were hair root status, hair shaft diameter of anagen hair roots and number of hairs with a diameter less than 40 micron. After therapy the cranial region showed an increase in the number and mean hair shaft diameter of anagen hair roots and in the number of hair roots with a diameter less than 40 micron. The number of hair roots in catagen/telogen decreased, the number of dysplastic/dystrophic hair roots remained unchanged. After therapy the cranial region in the controls showed a decrease in number and mean hair shaft diameter of anagen roots, and in the number of dysplastic/dystrophic hair roots. There was an increase in number of hair roots in catagen/telogen and of hair roots with a diameter less than 40 micron. The results warrant the conclusion that the above mentioned therapy would seem to be effective in men suffering from androgenetic alopecia.

Administration, Topical↗

Hair root studies in patients suffering from primary and secondary syphilis.

The hair root status (trichogram) was studied in eleven patients with primary and eight with secondary syphilis. Variables studied in addition to the hair roots were absence or presence of hair root sheaths, deformities and hair roots with angulations exceeding 20 degrees. A decrease in the number of anagen hair roots and an increase in the number of catagen hair roots, dysplastic/dystrophic roots and anagen hair roots with sheaths and more than 20 degrees angulation was observed in both groups of patients. No difference was demonstrable between the findings in primary and those in secondary syphilis. Whether the abnormalities found in the trichogram are specific of syphilis, is unknown.

Adolescent↗

[Alopecia areata in children].

Alopecia areata is a hair disease of unknown origin characterized by the sudden appearance of one or more bald patches. This disorder may develop in adults as well as in children. In childhood there is often an association with atopy. Most investigators feel that alopecia areata is an auto-immune phenomenon with heterogeneous aetiology. This article deals with hypotheses for the development of alopecia areata stressing also the psychosomatic aspects. Different therapy modalities have been propagated in alopecia areata, though complete satisfactory effects have been achieved by none. In childhood application of dithranol and locally applied corticosteroids are the only suitable therapeutic possibilities. Insufficient insight into the pathogenesis and associations of this disorder in childhood warrants further investigations.

Adrenal Cortex Hormones↗

Trichotillomania in childhood.

Several aspects of trichotillomania in childhood are described and discussed. Case records of twenty-one children not older than 15 years of age, who were seen in the previous 5 years, were examined. The female/male ratio was 2.5:1 (fifteen girls and six boys); the age range was 2 to 15 years. Although trichotillomania may, at first sight, often impress as an apparently inexplicable persistent habit, further analysis shows that this symptom often develops in a climate of psychosocial stress in the family, e.g., hospitalizations of child or mother, the additional stress inherent in moving to a new house, or developmental problems such as sibling rivalry, inability to focus activities and play in the younger child, and school problems in the older child.

Adolescent↗

Markers of immunologic injury in progressive alopecia areata.

In a selected group of 8 patients with progressive alopecia areata (AA) leading to AA universalis, immunological aspects (in the peripheral blood and the tissue) were studied during the period of the initial attack of the disease. The peripheral T-cell helper/suppressor ratio appeared not to be a reliable parameter for the disease activity. The intrabulbar and peribulbar distribution of T-cells, Langerhans cells and of HLA-DR expression in and around the anagen hair follicles in the progressive areas of the disease (region of exclamation-mark hairs) may suggest a T-cell-mediated injury primarily in the peribulbar regions of the follicles. The data presented tend to support the possibility that in the early development of AA, the dermal pailla (capillary network?) may be the prime target of immunologic injury.

Adult↗

Clinical and scanning electron microscopic findings in a solitary case of Trichorhinophalangeal syndrome type I.

A solitary case of Trichorhinophalangeal syndrome type I is described. Scanning electron microscopic examination revealed alterations of the cuticular pattern and hair shaft structure. These alterations have not been previously described and differ from those seen in other syndromes belonging to the group of the ectodermal dysplasias e.g. the Trichoonytic Hidrotic ectodermal dysplasia, autosomal recessive Anhidrotic ectodermal dysplasia and X-linked Anhidrotic ectodermal dysplasia.

Adult↗