References of "Pierard, Gérald"
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See detailComment je traite... une onychomycose par voie topique.
Pierard, Gérald ULg; Pierard-Franchimont, Claudine ULg

in Revue medicale de Liege (2015), 70(1), 5-11

Onychomycosis is a frequent and challenging disease to treat. Well conducted oral therapies are commonly quite effective for a short term period. However, recurrences are frequent. Topical therapies ... [more ▼]

Onychomycosis is a frequent and challenging disease to treat. Well conducted oral therapies are commonly quite effective for a short term period. However, recurrences are frequent. Topical therapies appear globally less active. Studies in this field are rare, although the promotional advertisements to the general public abound nowadays. Various microscopic fungi (dermatophytes, yeasts, molds) should be targeted by the treatment, In addition, the distinct activity conditions of both growth and quiescence of the pathogen fungi should be influenced by the treatments. This is not frequently considered by drug companies and encountered in practice. The antifungal drug penetration inside all the nail layers is important to be performed. [less ▲]

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See detailIn vivo skin fluorescence imaging in young Caucasian adults with early malignant melanomas
PIERARD, Gérald ULg; Hermanns-Lê, Trinh ULg; Pierard, Sébastien ULg et al

in Clinical, Cosmetic and Investigational Dermatology (2014), 7

Background: Human cutaneous malignant melanoma (CMM) is an aggressive cancer showing a dramatic worldwide increase in incidence over the past few decades. The most prominent relative epidemiological ... [more ▼]

Background: Human cutaneous malignant melanoma (CMM) is an aggressive cancer showing a dramatic worldwide increase in incidence over the past few decades. The most prominent relative epidemiological increase has been disclosed in young women. The aim of the study was to assess the effects of chronic sun exposures in order to rate the extend of melanocytic stimulations in the vicinity of CMM. Methods: The study was designed to evaluate the melanin distribution and density using ultraviolet light illumination. The present study was performed on surgical excision specimens of thin CMM lesion removed from the upper limbs of 55 Caucasian adults (37 women and 18 men). Two control groups comprised 23 men and 21 women of similar ages who had medium-size congenital melanocytic nevi, also present on the upper limbs. The peritumoral skin was scrutinized using a Visioscan® VC98 device, revealing the faint mosaic melanoderma (FMM) pattern that grossly indicates early signs of chronic photodamage in epidermal melanin units. Results: The median extent of relative FMM was significantly higher in the CMM male group. By contrast, the CMM female group showed a reverse bimodal distribution in FMM size. Only 12/37 (32.5%) of the CMM female group had an increased FMM size, whereas 25/37 (67.5%) of females with CMM had a global FMM extent in the normal range, relative to the controls. Conclusion: Thin CMM supervening in young women appear unrelated to repeat photoexposure. Other mechanisms are possibly involved. [less ▲]

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See detailEffect of gamma-hydroxybutyrate on keratinocytes proliferation: a preliminary prospective controlled study in severe burn patients.
ROUSSEAU, Anne-Françoise ULg; BARGUES, Laurent; LE BEVER, Hervé et al

in International Journal of Critical Illness and Injury Science (2014), 4(2), 108-113

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See detailVotre patient se plaint d'une perte de cheveux Contribution de la biopsie cutanee dans le diagnostic des alopecies non cicatricielles.
Pierard-Franchimont, Claudine ULg; Pierard, Gérald ULg

in Revue medicale de Liege (2014), 69(12), 686-91

The diagnosis of most alopecia problems is based on the clinical history and a well conducted clinical examination. The additional contributions of dermoscopy, trichoscopy and trichogram are helpful ... [more ▼]

The diagnosis of most alopecia problems is based on the clinical history and a well conducted clinical examination. The additional contributions of dermoscopy, trichoscopy and trichogram are helpful. However, a scalp biopsy is occasionally necessary to establish the correct diagnosis. The main noncicatricial alopecias are represented by androgenetic alopecia, alopecia areata, trichotillomania, traction and pressure alopecia, temporal triangular alopecia, ageing alopecia, loose anagen syndrome, telogen effluvium and anagen effluvium. [less ▲]

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See detailLa vignette diagnostique de l'étudiant. Diagnostic et évolution d'une gale.
Franchimont, Claudine ULg; Hermanns-Lê, Trinh ULg; PIERARD, Gérald ULg

in Revue Médicale de Liège (2014), 69

Human scabies is an ectoparasitosis affecting any individual at any age. The level of infestation by Sarcoptes scabiei var. hominis is influenced by any defect in immune response. Several clinical types ... [more ▼]

Human scabies is an ectoparasitosis affecting any individual at any age. The level of infestation by Sarcoptes scabiei var. hominis is influenced by any defect in immune response. Several clinical types of scabies are described including baby scabies, profuse scabies of immunodepression, norvegian scabies and sarcoptic mange. Onchocerciasis dermatitis is a tropical microfilariosis completely distinct by its parasitIc nature. [less ▲]

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See detailRecent advances in toxicological testing of the stratum corneum.
Pierard, Gérald ULg; Pierard-Franchimont, Claudine ULg; Hermanns-Lê, Trinh ULg et al

in The British journal of dermatology (2014), 171 Suppl 3

alpha-Hydroxy acid (AHA) formulations are commonly used for skin chemical peelings. The primary target is the stratum corneum (SC). The aim of this study was to assess the effects of various glycolic acid ... [more ▼]

alpha-Hydroxy acid (AHA) formulations are commonly used for skin chemical peelings. The primary target is the stratum corneum (SC). The aim of this study was to assess the effects of various glycolic acid concentrations and commercial phenolic acid formulations on the SC. Quantitative colorimetry of a corneoxenometry bioassay was used. The test procedure involved glycolic acid concentrations ranging from 3% to 70% in alcoholic solution. Exposure times were set for 1 min and 3 min. The bioassay showed consistent reactivity with a dose-effect relationship when using the selected low exposure times. In a similar procedure the aggressiveness of commercially available phenolic acid formulations was identified not using hazardous in vivo testing. Corneoxenometry appears useful for in vitro testing of AHA peeling agents during short exposure times. [less ▲]

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See detailChangements climatiques et l'antinomie de l'eau qui déshydrate.
Franchimont, Claudine ULg; Hermanns-Lê, Trinh ULg; Pierard, Sébastien ULg et al

in Revue Médicale de Liège (2014), 69

The stratum corneum materializes the interface between the body and its environment. Such a structure is influenced by the climate and seasons. A series of physicochemical parameters are involved in this ... [more ▼]

The stratum corneum materializes the interface between the body and its environment. Such a structure is influenced by the climate and seasons. A series of physicochemical parameters are involved in this relationship. Among them, the relative humidity, the dew point, the insensible loss of water and the concepts of water-as-ice and the higgledypiggledy- water. [less ▲]

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See detailLe syndrome psoriasis avec ses comorbidités.
Franchimont, Claudine ULg; PIERARD, Gérald ULg; DELVENNE, Philippe ULg et al

in Revue Médicale de Liège (2014), 69

The recognition of a complex disorder associating skin psoriasis and its comorbidities has considerably progressed over recent years. Beyond the skin lesions, psoriatic arthritis, the metabolic syndrome ... [more ▼]

The recognition of a complex disorder associating skin psoriasis and its comorbidities has considerably progressed over recent years. Beyond the skin lesions, psoriatic arthritis, the metabolic syndrome, type II diabetes, cardiovascular disease, inflammatory bowel diseases, and some cancers represent a group of chronic systemic disorders. The process is initiated and sustained by an immunological pathway involving Th1, Th17 and Th22 lymphocytes. The recognition of this complex disorder indicates that the clinical impact of psoriasis is not exclusively limited to the skin only. Keywords : Psoriasis - Cardiovascular disease [less ▲]

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See detailGreenhouse gas-related climate changes and some expected skin alterations.
Pierard, Sébastien ULg; PIERARD, Gérald ULg; Hermanns-Lê, Trinh ULg et al

in Austin Journal of Dermatology (2014), 1

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See detailSkin viscoelasticity in incipient gravitational syndrome.
Pierard, Gérald ULg; Paquet, Philippe; Pierard-Franchimont, Claudine ULg

in Journal of cosmetic dermatology (2014), 13(1), 52-5

BACKGROUND: The gravitational syndrome resulting from venous pressure elevation occasionally develops on the legs during pregnancy. The limb tends to enlarge and become stiffer. The body contours are ... [more ▼]

BACKGROUND: The gravitational syndrome resulting from venous pressure elevation occasionally develops on the legs during pregnancy. The limb tends to enlarge and become stiffer. The body contours are altered. AIMS: To assess incipient gravitational edema due to chronic venous insufficiency using measurements of the skin tensile strength. METHOD: A total of 21 women aged 28-37 years were enrolled in the study. Evaluations were made twice in each subject following an alternate use and avoidance of daytime elastic contention. Skin viscoelasticity was measured on the mid portion of the calves using a computerized suction device. RESULTS: The discretely increased consistency of skin showing abnormal rheological characteristics at the site of incipient gravitational edema was significantly improved by contention therapy. Under progressive suction measurements, both skin distensibility, biologic elasticity and hysteresis were increased after wearing tight stockings. The biologic elasticity appears to be the most sensitive parameter pointing to the diagnosis of gravitational syndrome. CONCLUSION: Noninvasive measurements of the skin viscoelasticity, particularly the biologic elasticity, represent an objective assessment of both early gravitational edema and its control by contention therapy. [less ▲]

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See detailSécrétions sudorale et sébacée.
PIERARD, Gérald ULg; Franchimont, Claudine ULg; Hermanns-Lê, Trinh ULg

in EMC Cosmétologie et Dermatologie Esthétique (2014)

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See detailSkin viscoelasticity during hormone replacement therapy for climacteric ageing.
PIERARD, Gérald ULg; Hermanns-Lê, Trinh ULg; PAQUET, Philippe ULg et al

in International Journal of Cosmetic Science (2014), 36

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See detailAnalytical search of sensory irritation to shampoos in reactive scalp.
PIERARD, Gérald ULg; Hermanns-Lê, Trinh ULg; Franchimont, Claudine ULg et al

in Labome Materials and Methods (2014), 4

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See detailLa vignette diagnostique de l'étudiant. Diagnostic et évolution d'une chéloïde.
FRANCHIMONT, Claudine ULg; Hermanns-Lê, Trinh ULg; NIZET, Jean-Luc ULg et al

in Revue Médicale de Liège (2014), 69

Une chéloïde est une formation saillante, fibreuse hypertrophique du derme. Elle est très ferme au toucher. Il en existe deux types cliniques qui correspondent, d’une part, à une évolution particulière ... [more ▼]

Une chéloïde est une formation saillante, fibreuse hypertrophique du derme. Elle est très ferme au toucher. Il en existe deux types cliniques qui correspondent, d’une part, à une évolution particulière d’une cicatrice et, d’autre part, à une apparition présumée spontanée. Cette lésion est caractérisée par des dépôts massifs de faisceaux de collagène. Cet aspect la distingue de la cicatrice hypertrophique qui représente, de manière primordiale, une accumulation de fibroblastes et de petits vaisseaux. [less ▲]

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See detailSkin ageprint: the causative factors.
PIERARD, Gérald ULg; Hermanns-Lê, Trinh ULg; Delvenne, Philippe ULg et al

in Paye, M.; Maibach, H.I.; Barel, A.O. (Eds.) Handbook of Cosmetic Science and Technology (2014)

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See detailAsymmetric facial skin viscoelasticity during climacteric aging.
Pierard, Gérald ULg; Hermanns-Lê, Trinh ULg; Gaspard, Ulysse ULg et al

in Clinical, cosmetic and investigational dermatology (2014), 7

BACKGROUND: Climacteric skin aging affects certain biophysical characteristics of facial skin. The purpose of the present study was to assess the symmetric involvement of the cheeks in this stage of the ... [more ▼]

BACKGROUND: Climacteric skin aging affects certain biophysical characteristics of facial skin. The purpose of the present study was to assess the symmetric involvement of the cheeks in this stage of the aging process. METHODS: Skin viscoelasticity was compared on both cheeks in premenopausal and post-menopausal women with indoor occupational activities somewhat limiting the influence of chronic sun exposure. Eighty-four healthy women comprising 36 premenopausal women and 48 early post-menopausal women off hormone replacement therapy were enrolled in two groups. The tensile characteristics of both cheeks were tested and compared in each group. A computerized suction device equipped with a 2 mm diameter hollow probe was used to derive viscoelasticity parameters during a five-cycle procedure of 2 seconds each. Skin unfolding, intrinsic distensibility, biological elasticity, and creep extension were measured. RESULTS: Both biological elasticity and creep extension were asymmetric on the cheeks of the post-menopausal women. In contrast, these differences were more discrete in the premenopausal women. CONCLUSION: Facial skin viscoelasticity appeared to be asymmetric following menopause. The possibility of asymmetry should be taken into account in future studies of the effects of hormone replacement therapy and any antiaging procedure on the face in menopausal women. [less ▲]

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See detailCyanoacrylate skin surface strippings and the 3S-Bioket advent in tropical dermatology. A look from Liège.
PIERARD, Gérald ULg; Franchimont, Claudine ULg; PAQUET, Philippe ULg et al

in Scientific World Journal (The) (2014), 2014

In the dermatopathology field, some simple available laboratory tests require minimum equipment for establishing a diagnosis. Among them, the cyanoacrylate skin surface stripping (CSSS), formerly named ... [more ▼]

In the dermatopathology field, some simple available laboratory tests require minimum equipment for establishing a diagnosis. Among them, the cyanoacrylate skin surface stripping (CSSS), formerly named skin surface biopsy or follicular biopsy, represents a convenient low cost procedure. It is a minimally invasive method collecting a continuous sheet of stratum corneum and horny follicular casts. In the vast majority of cases, it is painless and is unassociated with adverse events. CSSS can be performed in subjects of any age. The method has a number of applications in diagnostic dermatopathology and cosmetology, as well as in experimental dermatology settings. A series of derived analytic procedures include xerosis grading, comedometry, corneofungimetry, corneodynamics of stratum corneum renewal, corneomelametry, corneosurfametry, and corneoxenometry. [less ▲]

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