There is no clear association between low serum ferritin and chronic diffuse telogen hair loss.

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Br J Dermatol 2002 Nov;147(5):982-4

There is no clear association between low serum ferritin and chronic diffuse telogen hair loss.

BACKGROUND: Low iron stores are considered a possible cause of chronic diffuse telogen hair loss in women. Estimation of serum ferritin is recommended as part of the initial assessment when women present with chronic diffuse telogen hair loss, and iron supplementation therapy is commonly recommended for those found to have low iron stores. OBJECTIVES: To evaluate the relationship between low serum ferritin ( 20 micro g L-1. Cessation or reversal of hair loss was not seen in any of these women. CONCLUSIONS: No direct relationship between low serum ferritin and hair loss can be established. The usefulness of serum ferritin in the routine investigation of women with chronic diffuse telogen hair loss is unclear, as is the role of iron supplementation therapy in the management of hair loss.

Eur J Endocrinol 2002 Sep;147(3):357-61

An endocrinopathy characterized by dysfunction of the pituitary-adrenal axis and alopecia universalis: supporting the entity of a triple H syndrome.

We demonstrate the rare disorder of triple H syndrome in a 25-year-old man. He was pointed out as having short stature, at -5.9 s.d., and diagnosed as GH deficient at 6 years old. Approximately a year ago, he noticed systematic hair loss. He lost body weight by 7 kg during the last half year. He was admitted to Jichi Medical School Hospital because of unconsciousness. Physical findings showed disturbance of consciousness with Japan Coma Scale I-3. He had emaciation and alopecia universalis. Laboratory findings showed plasma glucose was as low as 1.11 mmol/l. GH and ACTH deficiency with hypoadrenocorticism were clarified. His intelligence was in the low normal range with a WAIS IQ of 70, and anterograde amnesia was suggested in the presence of a little, but not significant, morphological change in the hippocampus on a magnetic resonance imaging scan. Replacement by a physiological dose of hydrocortisone normalized plasma glucose, and restored body weight and growth of hair during the 7 month therapeutic period. The present finding strongly supports a clinical entity of triple H syndrome, including ACTH deficiency, alopecia universalis and anterograde amnesia, and that there may be some variation of the triad among the subjects.

Br J Dermatol 2002 Aug;147(2):222-9

Langerhans cells that express matrix metalloproteinase 9 increase in human dermis during sensitization to diphenylcyclopropenone in patients with alopecia areata.

BACKGROUND: We know little of the initial events during the sensitization phase of contact allergy in humans. Alopecia areata (AA), a disease of unknown pathogenesis characterized by patchy hair loss, may be treated by inducing contact allergy to diphenylcyclopropenone (DPC), later followed by its topical application. OBJECTIVES: To learn more about the initial events during sensitization in human skin, we studied the early events during induction of contact allergy to DPC in patients with AA. METHODS: DPC 2% and sodium lauryl sulphate (SLS) 4% were applied on the backs of eight patients with AA. Punch biopsies were taken 6 and 24 h after application. The biopsies were snap-frozen and cryostat sections were evaluated with immunohistochemistry using antibodies against CD1a, HLA-DR, CD3, CD54 and matrix metalloproteinase 9 (MMP-9). RESULTS: After 24 h all subjects exhibited erythema on the DPC-treated areas. Histological evaluation of biopsies from these areas showed hydropic degeneration and a significantly increased number of MMP-9+ cells in the dermis (P < 0.0005). The MMP-9+ cells were identified with double immunofluorescence staining as CD1a + Langerhans cells. The expression of the other markers studied remained unaltered irrespective of treatment, including treatment with SLS. CONCLUSIONS: Our findings show that DPC induces an irritant reaction leading to an increased number of MMP-9+ CD1a+ cells in the dermis during the initial phase of sensitization.

Indian J Cancer 2000 Jun-Sep;37(2-3):95-104

Occurrence and severity of alopecia in patients on combination chemotherapy.

The aim of the study was to evaluate the occurrence and severity of alopecia resulting from combination chemotherapy on cancer patients. The study was conducted during the period 1994-1996 on 58 confirmed cases of malignancies attending the Kasturba Medical College Hospital, Mangalore, South India. The treatment regimens followed were standard protocols recommended for those malignancies and which are widely adopted. Specific drug combinations, their dosage and routes and schedules of administration were studied. The influence of 20 different treatment regimens, most of them in combination chemotherapy, were studied. The patients studied were not receiving any other medication which could have caused alopecia as observed in the present study. The pathophysiology of the hair, as influenced by the treatment regimens, were studied by examination of samples of the affected hairs under a Leica compound microscope. Alopecia was the most dominant side effect influencing 35 of the 58 patients undergoing the treatment (60%). The severity of alopecia was assessed by grouping them in four distinct grades. Specific drugs and their combinations causing varying degrees of severity were identified. The initiation of hair loss in different treatment regimens were analysed. It is seen that alopecia is an early manifestation of cutaneous side effects of cancer chemotherapy. In a majority of patients, the manifestation initiated after the first or the second cycle of administration of the rapeutic regimen, indicating a time interval of 1 to 8 weeks after the start of chemotherapy. Single agent drugs, when used alone or in combination with immunomodulator drugs seem to cause much less side effects, including alopecia, when compared to multiple drug regimens. Microscopic examination of the affected hair showed trichorrhexis, fragmentation, decrease in diameter and depigmentation of the hair shaft.

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