References of "PIERARD-FRANCHIMONT, Claudine"
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See detailCOSMÉTIQUES, SANTÉ ET ENVIRONNEMENT Actualisation d’une diatribe justifiée ou exagérée ?
Pierard, Gérald ULg; Pierard-Franchimont, Claudine ULg; Lesuisse, Marianne et al

in Revue Médicale de Liège (2015), 70

In recent years, the population and producers of consumer products became aware of deleterious effects of some substances on human health and environment. Cosmetic products are part of such concern. What ... [more ▼]

In recent years, the population and producers of consumer products became aware of deleterious effects of some substances on human health and environment. Cosmetic products are part of such concern. What are the risks currently involved? The so-called «natural», «bio» or «green» products, do they represent an ideal panacea ? This topic has a complex issue because documents available for the general public are of unequal quality, and objective scientifc publications remain rare and prone to controversies. [less ▲]

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See detailSweat Gland Awakening on Physical Training: A Skin Capacitance Mapping Observation
Pierard-Franchimont, Claudine ULg; Pierard, Gérald ULg

in Clinical Research in Dermatology : Open Access (2015), 2

Skin capacitance mapping (SCM) is an established real-time noninvasive method useful in the assessment of sweat production. We presently review and explore the sweat gland production following a mild 10 ... [more ▼]

Skin capacitance mapping (SCM) is an established real-time noninvasive method useful in the assessment of sweat production. We presently review and explore the sweat gland production following a mild 10-min physical training on a cycloergometer. Sprouts of sweat vapor are progressively increased by recruiting increasing numbers of active sweat pores. An overall moisturization of the stratum corneum ensues, and liquid sweat appears in a further step. These aspects are conveniently assessed using SCM while blind assessments of the skin surface water loss cannot distinguish these functional features. [less ▲]

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See detailSimulants of malignant melanoma
Pierard, Gérald ULg; Pierard-Franchimont, Claudine ULg; Delvenne, Philippe ULg

in Oncology Reviews (2015), 9

During the recent period, dermoscopy has yielded improvement in the early disclosure of various atypical melanocytic neoplasms (AMN) of the skin. Beyond this clinical procedure, AMN histopathology remains ... [more ▼]

During the recent period, dermoscopy has yielded improvement in the early disclosure of various atypical melanocytic neoplasms (AMN) of the skin. Beyond this clinical procedure, AMN histopathology remains mandatory for establishing their precise diagnosis. Of note, panels of experts in AMN merely report moderate agreement in various puzzling cases. Divergences in opinion and misdiagnosis are likely increased when histopathological criteria are not fine-tuned and when facing a diversity of AMN types. Furthermore, some AMN have been differently named in the literature including atypical Spitz tumor, metastasizing Spitz tumor, borderline and intermediate melanocytic tumor, malignant Spitz nevus, pigmented epithelioid melanocytoma or animal-type melanoma. Some acronyms have been further suggested such as MELTUMP (after melanocytic tumor of uncertain malignant potential) and STUMP (after Spitzoid melanocytic tumor of uncertain malignant potential). In this review, such AMN at the exclusion of cutaneous malignant melanoma (MM) variants, are grouped under the tentative broad heading skin melanocytoma. Such set of AMN frequently follows an indolent course, although they exhibit atypical and sometimes worrisome patterns or cytological atypia. Rare cases of skin melanocytomas progress to loco regional clusters of lesions (agminate melanocytomas), and even to regional lymph nodes. At times, the distinction between a skin melanocytoma and MM remains puzzling. However, multipronged immunohistochemistry and emerging molecular biology help profiling any malignancy risk if present. [less ▲]

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See detailSyndrome d'Ehlers-Danlos de type hypermobile: une atteinte multisystémique. Apport de l'ultrastructure cutanée pour une prise en charge personnalisée
Hermanns-Lê, Trinh ULg; PIERARD, Gérald ULg; PIERARD-FRANCHIMONT, Claudine ULg et al

in Revue Médicale de Liège (2015), 70(5-6), 325-330

Ehlers-Danlos syndrome (EDS) represents a heterogenous group of disorders of the connective tissue structure. Currently, several types are distinguish following a limited set of clinical signs and genetic ... [more ▼]

Ehlers-Danlos syndrome (EDS) represents a heterogenous group of disorders of the connective tissue structure. Currently, several types are distinguish following a limited set of clinical signs and genetic mutations. However, there is a lack of specificity of most recognized genetic alterations with the current clinical typing. In addition, the criteria from dermatopathology, ultrastructure and biomechanics are not considered. In addition, the establish frontiers are hazardous because a series of anatomo-clinical signs are not considered in the classical EDS concept. The hypermobile type EDS represents an example of the diagnostic uncertainties. It results that guidelines based on evidence-based medecine cannot be established. Only an individual management can be offerted to the concerned patients. [less ▲]

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See detailLe mélanome cutané sporadique au-delà de sa classification normative. Plaidoyer prenant en compte son particularisme évolutif
Pierard, Gérald ULg; Pierard-Franchimont, Claudine ULg

in Revue Médicale de Liège (2015), 70(5-6), 277-281

For aeons, cutaneous sporadic melanoma, exhibiting either a slow or rapid growth rate, is identified using a set of well defined histopathological criteria. Such diagnostic step is greatly appreciated ... [more ▼]

For aeons, cutaneous sporadic melanoma, exhibiting either a slow or rapid growth rate, is identified using a set of well defined histopathological criteria. Such diagnostic step is greatly appreciated, and it brings a rough estimate of the probable evolution of the cancer. Some additional assessments try to improve the progressive prognosis of cutaneous melanoma. In this scope, fractals and spectral analyses expect to better perceive the individual progressive characteristics of each tumor. The extent in the tumoral germinative compartment and the peritumoral microvascular network are explored and should in a near future make clear the progressive potential of cutaneous melanoma. The possible tumoral regression and the immune reaction should be better perceived. [less ▲]

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See detailComment j'explore ... le "cheetah-look". Regard sur la peau sous des longueurs d'ondes particulieres de la lumiere.
Pierard-Franchimont, Claudine ULg; Hermanns-Lê, Trinh ULg; Pierard, Gérald ULg et al

in Revue medicale de Liege (2015), 70(4), 204-6

The melanotic facial pigmentation of each individual is frequently heterogeneous, even when this condition remains imperceptible under natural ambient light. However, with aging, this aspect may appear to ... [more ▼]

The melanotic facial pigmentation of each individual is frequently heterogeneous, even when this condition remains imperceptible under natural ambient light. However, with aging, this aspect may appear to everybody. The melanin heterochromia has various origins including ethnicity, the hormonal impact, the influence of various inflammatory, toxic and drug-induced disorders, as well as the impact of photoaging. The cheetah-look aspect is thus established and well identified under ultraviolet light or using an ingenious trick selecting some wavelengths of visible light. [less ▲]

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See detailLes cheveux et leur environnement.
Pierard-Franchimont, Claudine ULg; Pierard, Gérald ULg

in Revue medicale de Liege (2015), 70(2), 70-2

Hair is influenced by the effects of the daily environment. Some toxic xenobiotics slow down or block the cell renewal of the hair matrix, thus inhibiting hair growth. The ultraviolet light obviously ... [more ▼]

Hair is influenced by the effects of the daily environment. Some toxic xenobiotics slow down or block the cell renewal of the hair matrix, thus inhibiting hair growth. The ultraviolet light obviously influences the physical structure and physiology of the hair follicle. Tobacco is similarly responsible for negative influences on the evolution of various alopecias. Several cosmetic procedures for maintaining and making hair more attractive are not always harmless, and they occasionally represent a possible origin for alopecia. [less ▲]

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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 detailComment j'explore ... Votre patient se plaint d’une perte de cheveux Contribution de la biopsie cutanée dans le diagnostic des alopécies 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 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 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 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 detailFaites vos jeux, rien ne va plus ... la peau a l'age de la retraite, aujourd'hui et demain.
Pierard, Gérald ULg; Lesuisse, M.; Saint-Leger, D. et al

in Revue medicale de Liege (2014), 69(5-6), 366-71

Senescence of people represents a global expression of obsolescence of their organs, tissues, cells and constitutive molecules. Skin, similarly to any other organ, is ageing in particular ways. Over the ... [more ▼]

Senescence of people represents a global expression of obsolescence of their organs, tissues, cells and constitutive molecules. Skin, similarly to any other organ, is ageing in particular ways. Over the past century, the time effects on skin have been expressed differently. Skin of any individual presently engaged in the Third Age looks different from that of his/her line ancestral. What is the expected future? The Third Age population is expanding and skin problems call for a variety of management procedures. Prevention of the diverse types of skin ageing has made tremendous progresses particularly in the field of preventive and corrective dermocosmetology. The future should further speed up such trends. [less ▲]

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See detailEstablished and emerging oral antifungals in dermatology
PIERARD, Gérald ULg; PIERARD-FRANCHIMONT, Claudine ULg; Vroome, Valérie et al

in Dermatologic, Cosmeceutic, and Cosmetic Development (2013)

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See detailComment je traite un état pelliculaire.
Pierard-Franchimont, Claudine ULg; Pierard, Gérald ULg

in Revue Médicale de Liège (2013), 68(9), 436-9

Dandruff and seborrheic dermatitis form a continuum of desquamative conditions associated with the excessive colonization of the stratum corneum by yeasts of the genus Malassezia spp. Such colonization is ... [more ▼]

Dandruff and seborrheic dermatitis form a continuum of desquamative conditions associated with the excessive colonization of the stratum corneum by yeasts of the genus Malassezia spp. Such colonization is heterogeneous in density, ranging from discrete to abundant according to the fungal ability to adhere to individual corneocytes. The rate of action of antidandruff shampoos shed some doubts about a direct antifungal effect, but rather suggests the involvement of innate immune defenses and the chemical alteration of molecular adhesion modalities between Malassezia and corneocytes. [less ▲]

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See detailThigmotropism of Malignant Melanoma Cells
QUATRESOOZ, Pascale ULg; PIERARD-FRANCHIMONT, Claudine ULg; Noël, Fanchon ULg et al

in Dermatology Research and Practice (2012), (362784), 1-6

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See detailSmouldering malignant melanoma and metastatic dormancy: an update and review.
PIERARD, Gérald ULg; PIERARD-FRANCHIMONT, Claudine ULg; REGINSTER, Marie-Annick ULg et al

in Dermatology Research and Practice (2012), 2012

The fund of knowledge regarding the versatility of presentation of MM metastases is still quite incomplete. The recent literature pertaining to the current understanding of the mechanisms underlying two ... [more ▼]

The fund of knowledge regarding the versatility of presentation of MM metastases is still quite incomplete. The recent literature pertaining to the current understanding of the mechanisms underlying two special features of MM metastasis is reviewed. On the one hand, a long disease-free interval (MM dormancy) may occur before the surge of overt metastases. On the other hand, the so-called MM smouldering phenomenon refers to the condition where regional metastases wax and wane for long periods of time on restricted skin regions. It is important to emphasize that local micrometastases often predict sentinel lymph node involvement but may not reflect progression of the primary MM to full-blown visceral metastatic competence. It is likely that a combination of factors impacts the versatile MM metastasic progression. Among the main factors, one has to mention the phenotypic heterogeneity and variability in the phenotype of MM cells, the presence of MM stem cells and MM cells engaged in an amplification proliferation pool, as well as the host immune response, and possibly the induction of a particular stromal structure and vascularity. [less ▲]

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See detailMolecular dermatopathology in malignant melanoma.
REGINSTER, Marie-Annick ULg; PIERARD-FRANCHIMONT, Claudine ULg; PIERARD, Gérald ULg et al

in Dermatology Research and Practice (2012), 2012(684032), 1-6

At present, immunohistochemistry is taken for granted in the establishment of malignant melanoma (MM) diagnosis. In recent years, molecular diagnosis in dermatopathology has benefited from a vast array of ... [more ▼]

At present, immunohistochemistry is taken for granted in the establishment of malignant melanoma (MM) diagnosis. In recent years, molecular diagnosis in dermatopathology has benefited from a vast array of advances in the fields of genomics and proteomics. Sensitive techniques are available for detecting specific DNA and RNA sequences by molecular hybridization. This paper intends to update methods of molecular cytogenetics available as diagnostic adjuncts in the field of MM. Cytogenetics has highlighted the pathogenesis of atypical melanocytic neoplasms with emphasis on the activation of the mitogen-activated protein kinase (MAPK) signalling pathway during the initiation step of the neoplasms. 20 to 40% of MM families have mutations in the tumour suppressor gene p16 or CDKN2A. In addition, somatic mutations in p16, p53, BRAF, and cKIT are present in MM. Genome-wide scan analyses on MM indicate positive associations for genes involved in melanocytic naevi, but MM is likely caused by a variety of common low-penetrance genes. Molecular dermatopathology is expanding, and its use in the assessment of melanocytic neoplasms appears to be promising in the fields of research and diagnosis. Molecular dermatopathology will probably make its way to an increased number of diagnostic laboratories. The expected benefit should improve the patient management. This evolution points to a need for evolution in the training requirements and role of dermatopathologists. [less ▲]

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See detailComment j'explore...le meli-melo des ichtyoses.
Hermanns-Lê, Trinh ULg; REGINSTER, Marie-Annick ULg; QUATRESOOZ, Pascale ULg et al

in Revue Médicale de Liège (2011), 66(2), 102-8

Ichthyoses are hereditary and sometimes acquired diseases of keratinisation. They are heterogeneous according to their clinical and histopathological presentations, as well as to the nature of their ... [more ▼]

Ichthyoses are hereditary and sometimes acquired diseases of keratinisation. They are heterogeneous according to their clinical and histopathological presentations, as well as to the nature of their molecular and genetic alterations. We present the most frequent types of hereditary ichthyoses. [less ▲]

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