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References: Hair growth and hair loss








Neuropediatrics. 1992 Oct;23(5):228-34.
Late effects following central nervous system radiation in a pediatric population.

Avizonis VN, Fuller DB, Thomson JW, Walker MJ, Nilsson DE, Menlove RL.

LDS Hospital, SLC, UT.

Between 1970 and 1986, 120 children with central nervous system malignancy were treated with radiation therapy. These included 44 low-grade astrocytomas, 11 high grade astrocytomas, 32 medulloblastomas, 15 ependymomas/ependymoblastomas, 3 primitive neuroectodermal tumors and 8 pineal tumors. Seven children were treated without biopsy. Fifty-one treated children were evaluated for the effects of therapy on growth, endocrine function, IQ and hair regrowth. Mean height was 1.5 standard deviations below the mean height for the patient's age at study (range 0-5.7). Height was significantly less in patients receiving radiation to the pituitary and those with somatomedin-C deficiency. Height was also decreased with whole CNS radiation and spine dose > 20 Gy but not to a significant degree. Pituitary radiation in any dose increased the chance of endocrine deficiency (p = 0.004) and 21 of 51 patients had somatomedin-C deficiency. Mean IQ was 92.7 (+/- 18.8), with a slight trend toward decreased IQ with increasing whole brain dose of radiation. Hair regrowth was complete in 20 of 46 evaluated patients, diminished regrowth occurring with increasing volume and dose of radiation. No difference in the measured late effects could be detected with respect to age at treatment, sex, histology or location of tumor.

online pharmacy ref. source: www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=1454140&dopt=Abstract




J Oral Maxillofac Surg. 2003 Oct;61(10):1150-5.
The temporal fasciocutaneous island flap for oncologic oral and facial reconstruction.

Lopez R, Dekeister C, Sleiman Z, Paoli JR.

Department of Oral and Maxillofacial Surgery, Hospital Purpan, Toulouse, France.

PURPOSE: This study reports the anatomy, operative technique, and postoperative results of the temporal fasciocutaneous island flap (TFCIF), as used for facial and intraoral reconstruction. MATERIALS AND METHODS: Retrospective study of 15 patients who underwent TFCIF reconstruction. The anatomic basis and surgical technique are described. The flap was used for mucosal reconstruction after cheek or maxillary resection. It was used for facial tissue loss in 2 cases: orbital osteoradionecrosis and exposure of a mandibular reconstruction plate. RESULTS: This technique provides a safe and rapid solution for intraoral reconstruction; however, it cannot be used for the anterior floor of the mouth. The best indication that we have found is the reconstruction of hemimaxillectomy, allowing closure of buccosinusonasal communication and prosthetic rehabilitation. The main disavantage is that hair regrowth limits its use to patients who need postoperative radiotherapy. Donor site morbidity is minimal. Only a partial failure was observed. CONCLUSION: The TFCIF is a rapid, safe, and useful flap for oral and facial reconstruction after oncologic resection. Its arc of rotation limits, however, its use to the posterior part of the oral cavity.

online pharmacy ref. source: www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=14586849&dopt=Abstract




J Am Acad Dermatol. 2003 Dec;49(6):1013-9.
Restoration of hair growth with topical diphencyprone in mouse and rat models of alopecia areata.

Tang L, Lui H, Sundberg JP, Bissonnette R, McLean DI, Shapiro J.

Division of Dermatology, University of British Columbia, Vancouver Hospital and Health Sciences Center, 835 W 10th Avenue, Vancouver, BC, Canada V5Z 4E8.

BACKGROUND: The contact sensitizer, diphencyprone (DPCP), is one of the most effective therapies for the more severe forms of alopecia areata (AA). OBJECTIVE: The purpose of this study was to determine the efficacy of topical DPCP on the 2 available rodent models for AA, and to determine the underlying therapeutic mechanisms. METHODS: AA-affected mice and rats were treated unilaterally with topical DPCP on the ventral and dorsal surface, respectively. The opposite sides were treated with vehicle alone. Skin biopsy specimens were collected from both sides for histologic analysis. RESULTS: Hair regrowth was observed on the treated sides in the majority of the animals of both species. Immunohistochemical analyses revealed reduction of intrafollicular CD8(+) lymphocyte infiltrates after successful treatment in mice. CONCLUSION: The AA-like hair disorder of these 2 rodent models can be used as a tool for furthering our understanding of human AA and the therapeutic actions of DPCP.

online pharmacy ref. source: www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=14639378&dopt=Abstract





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