Showing results 161 to 179 of 179
  La peau humaine, un jardin extraordinaire pour quelques arthropodes importuns. Partie 1: les ectoparasites.Goffin, Véronique  ; Franchimont, Claudine ; Pierard, Gérald in Skin (2002), 5 Detailed reference viewed: 3 (0 ULg)Androgenic alopecia and stress-induced premature senescence by cumulative ultraviolet light exposure.Franchimont, Claudine ; ; et alin Exogenous Dermatology : Physical, Chemical, Biological (2002), 1 Background : Ultraviolet light radiations (UVR) may be responsible for hair cycle synchronization and telogen effluvium in the animal and humans. The effect if any of cumulative UVR on chronic hair ... [more ▼] Background : Ultraviolet light radiations (UVR) may be responsible for hair cycle synchronization and telogen effluvium in the animal and humans. The effect if any of cumulative UVR on chronic hair shedding and androgenic alopecia (AGA) is largely unknown. Objective : To compare the severity of AGA with the extent in solar elastosis. Method : The present study combining immunohistochemistry and computerized image analysis was undertaken in 140 men with AGA and 50 non-alopecic men. Solar elastosis was identified using the antibody to lyzozyme, and collagen was revealed by sirius red staining. The number and diameter of hair shafts were also assessed. Results : The scalp dermis was significantly thicker in AGA than in unaffected subjects. The difference was mainly due to a more severe elastosis in baldness. The earliest signs of solar elastosis preceded hair thinning. When elastosis was thicker than 0.2 mm, a negative exponential correlation was found between hair diameter and severity in solar elastosis. Conclusion : Chronic UVR exposure of the scalp may affect the hair cycle and be one exogenous factors influencing negatively the progression of AGA. The induction of stress-induced premature senescence (SIPS) through reactive oxygen species and microinflammation might be operative at the level of the follicular stem cells. [less ▲] Detailed reference viewed: 68 (0 ULg)Nudging hair shedding by antidandruff shampoos. A comparison of 1% ketoconazole, 1% piroctone olamine and 1% zinc pyrithione formulations.Franchimont, Claudine ; Goffin, Véronique ; Henry, Frédérique et alin International Journal of Cosmetic Science (2002), 24(5), 249-56 Hair shedding and hair thinning have been reported to be affected by dandruff and seborrhoeic dermatitis. The present study was conducted in 150 men presenting with telogen effluvium related to androgenic ... [more ▼] Hair shedding and hair thinning have been reported to be affected by dandruff and seborrhoeic dermatitis. The present study was conducted in 150 men presenting with telogen effluvium related to androgenic alopecia associated with dandruff. They were randomly allocated to three groups receiving each one of the three shampoos in the market containing either 1% ketoconazole (KTZ), 1% piroctone olamine (PTO) or 1% zinc pyrithione (ZPT). Shampoos had to be used 2-3 times a week for 6 months. Hair shedding during shampoo was evaluated semiquantitatively. Hair density on the vertex was evaluated on photographs using a Dermaphot. Trichograms were used for determining the anagen hair percentage and the mean proximal hair shaft diameter using computerized image analysis. The sebum excretion rate (SER, mug cm(-2) h(-1)) was also measured using a Sebumeter((R)). The three treatments cleared pruritus and dandruff rapidly. At end point, hair density was unchanged, although hair shedding was decreased (KTZ: -17.3%, PTO: -16.5%, ZPT: -10.1%) and the anagen hair percentage was increased (KTZ: 4.9%, PTO: 7.9%, ZPT: 6.8%). The effect on the mean hair shaft diameter was contrasted between the three groups of volunteers (KTZ: 5.4%, PTO: 7.7%, ZPT: -2.2%). In conclusion, telogen effluvium was controlled by KTZ, PTO and ZPT shampoos at 1% concentration. In addition, KTZ and PTO increased the mean hair shaft thickness while discretely decreasing the sebum output at the skin surface. [less ▲] Detailed reference viewed: 93 (0 ULg)Explorer les secrets du patrimoine cheveux.Franchimont, Claudine ; Pierard, Gérald in Skin (2002), 5 Detailed reference viewed: 2 (0 ULg)Voir les pyramides et en ramener un souvenir.; ; Franchimont, Claudine et alin Dermatologie Actualité (2002), 69 Detailed reference viewed: 12 (0 ULg)Vieillissements physiologiques de la peau. Le réel face à une culture de simulacre.; Franchimont, Claudine ; Pierard, Gérald in Skin (2002), 5 Detailed reference viewed: 22 (0 ULg)Alchimie défaillante des cytokines dans l'ulcère chronique de jambe.Franchimont, Claudine ; Henry, Frédérique ; Paquet, Philippe et alin Skin Pharmacology : The Official Journal of the Skin Pharmacology Society (2002), 5 Detailed reference viewed: 8 (0 ULg)Beyond a glimpse at seasonal dry skin. A review.Franchimont, Claudine ; Pierard, Gérald in Exogenous Dermatology : Physical, Chemical, Biological (2002), 1 On clinical grounds the so-called dry skin corresponds in reality to a rough sometimes flaky and scaly stratum corneum. The spectrum of xerotic disorders is quite large encompassing diverse etiologies and ... [more ▼] On clinical grounds the so-called dry skin corresponds in reality to a rough sometimes flaky and scaly stratum corneum. The spectrum of xerotic disorders is quite large encompassing diverse etiologies and physiopathological pathways. The clinical assessment of these conditions relies on close visual and tactile inspection. EEMCO guidances were proposed in this field for subject and expert evaluations. Scoring systems include analogue scales, the overall dry skin score (ODS) and the SRRC score combining the grading of scaliness, roughness, redness and cracks. The dry skin extent area and severity index (DASI) is defined for the dermatological evaluation of the entire body surface. The use of a video camera equipped with an internal ultraviolet light illumination unit is very informative and allows better comparative assessments. [less ▲] Detailed reference viewed: 34 (0 ULg)Perceptions sensorielles extéroceptives: de la microscopie à la biométrologie.; ; Henry, Frédérique et alin Dermatologie Actualité (2002), 65 Detailed reference viewed: 25 (1 ULg) Les rudistes de la Mésogée. Anatomie et biotope.Pierard, Sébastien ; Franchimont, Claudine ; Pierard, Gérald in Revue Verviétoise d'Histoire Naturelle (2001), 58 Detailed reference viewed: 17 (1 ULg)Introduction à la paléopathologie. A la source des cancers chez les dinosauresPierard, Sébastien ; Franchimont, Claudine ; Pierard, Gérald in Revue Médicale de Liège (2001), 56 Detailed reference viewed: 8 (0 ULg)Les Scarabées.Pierard, Sébastien ; Franchimont, Claudine ; Pierard, Gérald in Revue Verviétoise d'Histoire Naturelle (2000), 57 Detailed reference viewed: 9 (0 ULg)L'appareil aptychial chez les ammonoïdes.Pierard, Sébastien ; Franchimont, Claudine ; Pierard, Gérald in Association des Géologues Amateurs de Belgique Minibul (2000), 33 Detailed reference viewed: 6 (1 ULg)Les rhyncholites.Pierard, Sébastien ; Franchimont, Claudine ; Pierard, Gérald in Association des Géologues Amateurs de Belgique Minibul (2000), 33 Detailed reference viewed: 9 (0 ULg)Morphotypes et postures de vie et de mort chez les trilobites.Pierard, Sébastien ; Franchimont, Claudine ; Pierard, Gérald in Revue Verviétoise d'Histoire Naturelle (1999), 56 Detailed reference viewed: 19 (1 ULg)Plaidoyer pour la biodiversité au crépuscule du deuxième millénaire.Pierard, Sébastien ; Franchimont, Claudine ; Pierard, Gérald in Revue Verviétoise d'Histoire Naturelle (1998), 55 Detailed reference viewed: 8 (0 ULg)Observation de la peau d'un hadrosaure vieux de 75 millions d'années.Pierard, Sébastien ; Franchimont, Claudine ; Pierard, Gérald in Revue Verviétoise d'Histoire Naturelle (1998), 55 Detailed reference viewed: 2 (0 ULg)Oiseau, d'où viens-tu?Pierard, Sébastien ; Franchimont, Claudine ; Pierard, Gérald in Association des Géologues Amateurs de Belgique Minibul (1998), 31(8), 20-22 Detailed reference viewed: 21 (1 ULg)Variation de la récurrence du débit à pleins bords des rivières en relation avec la lithologie de leur bassin versant et les caractéristiques de leur lit.Petit, François ; ; et alin Revue de Géographie Alpine (1994) Detailed reference viewed: 23 (1 ULg) |
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