Voici les derniers articles parus en Novembre 2008 (source PUBMED http://www.ncbi.nlm.nih.gov/pubmed/ ) (sujet en anglais).
N'hesitez à commenter, en francais ou en anglais
These are the last papers published in November 2008 dedicated to alopecia aerata (source PUBMED http://www.ncbi.nlm.nih.gov/pubmed/ ).
Feel free to comment in english or ... in french
1: J Am Acad Dermatol. 2008 Nov 19; [Epub ahead of print] Related Articles, LinkOut
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Increased history of childhood and lifetime traumatic events among adults with alopecia areata.
Willemsen R, Vanderlinden J, Roseeuw D, Haentjens P.
Department of Dermatology, Universitair Ziekenhuis Brussels, Belgium.
BACKGROUND: Whether adult alopecia areata (AA) is associated with childhood or total lifetime traumatic events is not known. Previous studies have investigated only the relationship with recent stressful events. OBJECTIVE: We sought to determine whether patients with AA experience more childhood or total lifetime traumatic events, as measured by the Traumatic Experiences Checklist. METHODS: Using a case-control study, data on 90 patients with AA and 91 control subjects were analyzed. RESULTS: Significantly more patients with AA experienced total lifetime and early childhood traumatic events, with an odds ratio of 2.46 (95% confidence interval 1.15-5.28; P = .017) and 2.16 (1.15-4.06; P = .016), respectively. In patients with AA, the global impact score related to their traumatic experiences was significantly higher than in control subjects (P < .001). In addition, patients with AA experienced significantly more emotionally and physically traumatic events. LIMITATION: This case-control study is susceptible to recall bias and to confounding factors associated with stress caused by AA outbreaks or by a traumatic childhood history. CONCLUSION: Our study documents an increased history of childhood trauma in patients with AA compared with control subjects.
PMID: 19026463 [PubMed - as supplied by publisher]
2: J Invest Dermatol. 2008 Nov 20; [Epub ahead of print] Related Articles, LinkOut
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Development of Alopecia Areata Is Associated with Higher Central and Peripheral Hypothalamic-Pituitary-Adrenal Tone in the Skin Graft Induced C3H/HeJ Mouse Model.
Zhang X, Yu M, Yu W, Weinberg J, Shapiro J, McElwee KJ.
[1] 1Department of Dermatology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, People's Republic of China [2] 2Department of Cellular and Physiological Sciences, The University of British Columbia, Vancouver, BC, Canada [3] 3Department of Dermatology and Skin Science, The University of British Columbia, Vancouver, BC, Canada.
The relationship of the stress response to the pathogenesis of alopecia areata (AA) was investigated by subjecting normal and skin graft-induced, AA-affected C3H/HeJ mice to light ether anesthesia or restraint stress. Plasma corticosterone (CORT), adrenocorticotropic hormone (ACTH), and estradiol (E2) levels were determined by RIA, whereas gene expression in brains, lymphoid organs, and skin was measured by quantitative RT-PCR for corticotropin-releasing hormone (Crh), arginine vasopressin (Avp), proopiomelanocortin (Pomc), glucocorticoid receptor (Nr3c1), mineralo corticoid receptor (Nr3c2), corticotropin-releasing hormone receptor types 1 and 2 (Crhr1, Crhr2), interleukin-12 (Il12), tumor necrosis factor-alpha (Tnfalpha), and estrogen receptors type-1 (Esr1) and type-2 (Esr2). AA mice had a marked increase in hypothalamic-pituitary-adrenal (HPA) tone and activity centrally, and peripherally in the skin and lymph nodes. There was also altered interaction between the adrenal and gonadal axes compared with that in normal mice. Stress further exacerbated changes in AA mouse HPA activity both centrally and peripherally. AA mice had significantly blunted CORT and ACTH responses to acute ether stress (physiological stressor) and a deficit in habituation to repeated restraint stress (psychological stressor). The positive correlation of HPA hormone levels with skin Th1 cytokines suggests that altered HPA activity may occur as a consequence of the immune response associated with AA.Journal of Investigative Dermatology advance online publication, 20 November 2008; doi:10.1038/jid.2008.371.
PMID: 19020552 [PubMed - as supplied by publisher]
3: Dermatology. 2008 Nov 18; [Epub ahead of print] Related Articles, LinkOut
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Biologic Agents and Alopecia Areata.
Katoulis AC, Alevizou A, Bozi E, Georgala S, Mistidou M, Kalogeromitros D, Stavrianeas NG.
National and Kapodistrian University of Athens, Medical School, 2nd Department of Dermatology and Venereology, 'Attikon' General University Hospital, Athens, Greece.
PMID: 19018127 [PubMed - as supplied by publisher]
4: Br J Dermatol. 2008 Oct 25; [Epub ahead of print] Related Articles, LinkOut
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The alpha-melanocyte stimulating hormone-related tripeptide K(D)PT stimulates human hair follicle pigmentation in situ under proinflammatory conditions.
Meyer KC, Brzoska T, Abels C, Paus R.
Department of Dermatology, University of Lubeck, Ratzeburger Allee 160, D-23538 Lubeck, Germany.
Summary Background alpha-Melanocyte stimulating hormone (alpha-MSH) is a well-tolerated immunomodulator with cytoprotective and anti-inflammatory effects that is known to stimulate melanogenesis and proliferation of follicular melanocytes. As human hair follicles (HFs) locally synthesize alpha-MSH, pharmacologically more easily handled alpha-MSH-related tripeptides, such as K(D)PT, may imitate this endogenous regulation, and may show a favourable side-effect profile on clinical use. Objectives To investigate the effect of the synthetic, alpha-MSH-related peptide K(D)PT [which is identical to interleukin (IL)-1beta(193-195)] on melanogenesis in human anagen HFs, under normal and proinflammatory growth conditions. Methods Normal human anagen VI scalp HFs were microdissected and organ cultured with different concentrations of K(D)PT with or without coadministration of a proinflammatory, catagen-inducing stimulus, interferon (INF)-gamma. Masson-Fontana histochemistry and NKI/beteb immunohistochemistry were employed to assess changes in the degree of human HF pigmentation and melanocyte dendricity. Results As confirmed by quantitative (immuno-)histomorphometry, compared with controls, K(D)PT alone did not affect human HF pigmentation in organ culture. However, in the presence of a strong, prototypic proinflammatory stimulus (IFN-gamma), K(D)PT significantly stimulated HF melanin content and melanocyte dendrite formation in situ. Conclusions The IL-1beta- and alpha-MSH-related tripeptide, K(D)PT, displays interesting hair pigmentation-stimulatory activities under proinflammatory conditions. These might become exploitable for innovative antigreying strategies, notably in postinflammatory poliosis (regrowth of white hair, e.g. during recovery from alopecia areata), where no effective clinical therapy is yet available.
PMID: 19016700 [PubMed - as supplied by publisher]
5: J Am Acad Dermatol. 2008 Nov 5; [Epub ahead of print] Related Articles, LinkOut
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Acute diffuse and total alopecia: A new subtype of alopecia areata with a favorable prognosis.
Lew BL, Shin MK, Sim WY.
Department of Dermatology, College of Medicine, Kyunghee University, Seoul, Korea.
BACKGROUND: Alopecia areata (AA) appears in several clinical forms, all having different clinical courses and different prognoses. Acute diffuse and total alopecia (ADTA) has been reported to have a short clinical course ranging from acute hair loss to total baldness, followed by rapid recovery. OBJECTIVE: To determine the clinical course and prognosis of ADTA through precise clinical observations. METHODS: Thirty Korean patients who showed ADTA of the scalp within an average of 10 weeks after the onset of hair loss were studied. RESULTS: Most patients were women who were older than 20 years of age. The histopathology of the lesion revealed infiltration of mononuclear cells around the hair follicles and prominent pigment incontinence. The patients experienced hair regrowth within about 6 months, without regard to the method of treatment. LIMITATIONS: The duration of follow-up after remission ranged from 3 to 49 months, with a mean of 24 months. CONCLUSIONS: These cases can be categorized as having "acute diffuse and total alopecia," a new subtype of AA that is associated with a favorable prognosis and rapid and spontaneous recovery even without treatment.
PMID: 18992964 [PubMed - as supplied by publisher]
6: J Dtsch Dermatol Ges. 2008 Oct;6(10):895-6. Related Articles, LinkOut
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[High-dose intravenous corticosteroid pulse therapy in alopecia areata: own experience compared with the literature]
[Article in German]
Kalin U, Hunziker T.
Publication Types:
* Comment
* Letter
PMID: 18992030 [PubMed - in process]
7: Int J Dermatol. 2008 Nov;47(11):1118-20. Related Articles, LinkOut
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Comorbidity of psychiatric disorders in children and adolescents with alopecia areata in a child and adolescent psychiatry clinical sample.
Ghanizadeh A.
Department of Psychiatry, Shiraz University of Medical Sciences, Hafez Hospital, Shiraz, Iran. ghanizad@sina.tums.ac.ir
BACKGROUND: This study reports the comorbidity of lifetime psychiatric disorders in children and adolescents with alopecia areata (AA) in a child and adolescent psychiatry clinical sample. METHODS: Fourteen patients with AA were interviewed using the Diagnostic and Statistical Manual of Mental Disorders-Fourth edition (DSM-IV) criteria and the Kiddie-Schedule for Affective Disorders and Schizophrenia-Present and Lifetime-Farsi Version (KSADS-PL-Farsi Version). RESULTS: The rate of at least one psychiatric disorder was 78%. The rate of major depressive disorder was 50%, and the most common anxiety disorder was obsessive-compulsive disorder (OCD) (35.7%). CONCLUSIONS: There is a very high rate of psychiatric disorders in children and adolescents with AA. This high rate of OCD has not been reported previously. There seems to be a clinical association between OCD and AA in children and adolescents.
PMID: 18986440 [PubMed - in process]
8: Int J Dermatol. 2008 Oct;47(10):1088-9. Related Articles, LinkOut
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Lack of efficacy of topical imiquimod in the treatment of patchy alopecia areata.
Koc E, Tunca M, Akar A, Kurumlu Z.
Publication Types:
* Letter
PMID: 18986369 [PubMed - in process]
9: Med Monatsschr. 1947 Dec;1(12):532. Related Articles, LinkOut
[Not Available.]
[Article in Undetermined Language]
WALTHER H.
PMID: 18902895 [PubMed - indexed for MEDLINE]
10: Ann Dermatol Syphiligr (Paris). 1947 Jun;7(6):188. Related Articles, LinkOut
[Not Available.]
[Article in Undetermined Language]
GOUGEROT H, MEYER JJ, DEBEYRE.
PMID: 18933831 [PubMed - indexed for MEDLINE]
11: Dermatologica. 1947;94(5-6):377-84. Related Articles, LinkOut
[Not Available.]
[Article in Undetermined Language]
WINKLER M.
PMID: 18901252 [PubMed - indexed for MEDLINE]