References of "PIERARD, Gérald"
     in
Bookmark and Share    
Full Text
Peer Reviewed
See detailLa cascade des MAP kinases : traitements ciblés en cancérologie cutanée.
PIERARD, Gérald ULg; Franchimont, Claudine ULg; LEONARD, Boris ULg et al

in Revue Médicale de Liège (2013), 68(12), 650-654

Résumé : Les «Mitogen-Activated Protein Kinases» (MAPK) forment un ensemble coordonné de protéines cellulaires impliquées dans la prolifération, la différenciation, la migration et l’apoptose des cellules ... [more ▼]

Résumé : Les «Mitogen-Activated Protein Kinases» (MAPK) forment un ensemble coordonné de protéines cellulaires impliquées dans la prolifération, la différenciation, la migration et l’apoptose des cellules. Elles sont particulièrement activées, par certaines cytokines, hormones, le stress environnemental, ainsi que dans des cancers cutanés. Des agents pharmacologiques ciblés contre la cascade MAPK révolutionnent actuellement la cancérologie cutanée, du moins dans une phase transitoire du processus métastatique. Des traitements combinés sont susceptibles d’améliorer la survie médiane. [less ▲]

Detailed reference viewed: 5 (4 ULg)
Full Text
Peer Reviewed
See detailDermal ultrastructure in collagen VI myopathy.
HERMANNS-LE THI KIM, Trinh ULg; PIERARD, Gérald ULg; Franchimont, Claudine ULg et al

in Ultrastructural Pathology (2013)

Detailed reference viewed: 25 (1 ULg)
Full Text
Peer Reviewed
See detailFibromyalgie: un syndrome d'Ehlers-Danlos de type hypermobile qui s'ignore?
Hermanns-Le, T.; PIERARD, Gérald ULg; Angenot, Ph

in Revue Médicale de Liège (2013), 68(1), 22-4

Some patients suffering from fibromyalgia present with clinical signs and alterations in the histopathology, immunohistochemistry and ultrastructure of the dermis similar to the Ehlers-Danlos syndrome ... [more ▼]

Some patients suffering from fibromyalgia present with clinical signs and alterations in the histopathology, immunohistochemistry and ultrastructure of the dermis similar to the Ehlers-Danlos syndrome, hypermobile type (EDSH). Some types of fibromyalgia possibly represent an undiagnosed EDSH. [less ▲]

Detailed reference viewed: 78 (12 ULg)
Full Text
Peer Reviewed
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 ▲]

Detailed reference viewed: 7 (1 ULg)
Full Text
Peer Reviewed
See detailAlterations in hair follicle dynamics in women.
Franchimont, Claudine ULg; PIERARD, Gérald ULg

in BioMed Research International (2013), 2013(957432),

Detailed reference viewed: 20 (9 ULg)
Full Text
Peer Reviewed
See detailImmunohistochemical patterns in the interfollicular Caucasian scalps. Influence of age-, gender- and alopecia.
Franchimont, Claudine ULg; Loussouarn, Genevière; Panhard, Ségolène et al

in BioMed Research International (2013), 2013(769489),

Detailed reference viewed: 13 (3 ULg)
Full Text
Peer Reviewed
See detailRevisiting the cutaneous impact of oral hormone replacement therapy.
PIERARD, Gérald ULg; Humbert, Philippe; Berardesca, Enzo et al

in BioMed Research International (2013), 2013(971760),

Detailed reference viewed: 9 (1 ULg)
Full Text
Peer Reviewed
See detailSkin viscoelasticity during hormone replacement therapy for climacteric ageing.
Pierard, Gérald ULg; Hermanns-Le, T.; PAQUET, Philippe ULg et al

in International journal of cosmetic science (2013), 36

BACKGROUND: Climacteric ageing refers to the period of women's life centred by the perimenopause. This step of life is responsible for initiating skin atrophic withering and slackness responsible for ... [more ▼]

BACKGROUND: Climacteric ageing refers to the period of women's life centred by the perimenopause. This step of life is responsible for initiating skin atrophic withering and slackness responsible for changes in the viscoelasticity of the dermal connective tissue. Some women benefit from hormone replacement therapy (HRT) for controlling some unpleasant internal climacteric changes (osteoporosis, vasomotor instability, ...). OBJECTIVE: To investigate some corrective effects of HRT on the functional damages in the dermal tensile strength. PATIENTS AND METHODS: This study was performed on 200 healthy Caucasian women. In vivo skin viscoelasticity was assessed using the suction method. RESULTS: Skin distensibility and hysteresis appeared increased at menopause with or without HRT. By contrast, the biological elasticity significantly decreased out of HRT. CONCLUSION: Some drugs and cosmetics might attempt at improving such viscoelastic attributes of the skin at menopause. [less ▲]

Detailed reference viewed: 6 (2 ULg)
Full Text
Peer Reviewed
See detailImmunohistochemical sweat gland profiles.
Noel, Fanchon; Pierard, Gérald ULg; Delvenne, Philippe ULg et al

in Journal of Cosmetic Dermatology (2013), 12

Abstract BACKGROUND: Human sweat glands are heterogeneous in their structures and functions. Accordingly, eccrine, apocrine, and apoeccrine glands are distinguished. AIMS: Some immunohistochemical markers ... [more ▼]

Abstract BACKGROUND: Human sweat glands are heterogeneous in their structures and functions. Accordingly, eccrine, apocrine, and apoeccrine glands are distinguished. AIMS: Some immunohistochemical markers are expected to distinguish the sweat gland types in their secretory and excretory parts. METHODS: This study used two sets of antibodies. The first panel was composed of antibodies directed to well-defined sweat gland structures. The molecular targets included the low-molecular-weight cytokeratins CAM 5.2, the S100-B protein, the epithelial membrane antigen (EMA), the carcinoembryonic antigen (CEA), and the lectin Ulex europaeus agglutinin-1 (UEA-1). A second exploratory panel of antibodies targeted syndecan-1 (CD138), NKI-C3 (CD63), and CD68. They were used to disclose some undescribed antigen expressions in human sweat glands. RESULTS: The first set of antibodies confirmed previous findings. The immunoreactivities of the three sweat gland types were similar in the excretory ducts. By contrast, they were distinguished in the deeper coiled secretory portions of the glands. CONCLUSION: Clues supporting their distinction and probably their functional activity were obtained by immunohistochemistry using the S100-B protein, CEA and CD63 antibodies. The immunoreactivity to the S100-B protein, CEA and CD63 possibly help identifying apoeccrine sweat glands or a peculiar functional activity of eccrine sweat glands. [less ▲]

Detailed reference viewed: 15 (3 ULg)
Full Text
Peer Reviewed
See detailEhlers-Danlos syndrome.
HERMANNS-LE THI KIM, Trinh ULg; REGINSTER, Marie-Annick ULg; Franchimont, Claudine ULg et al

in Stirling, J; Curry, A; Eyden, B (Eds.) Diagnostic electron microscopy (2013)

Detailed reference viewed: 35 (2 ULg)
Full Text
Peer Reviewed
See detailIn vivo evaluation of the skin tensile strength by the suction method: pilot study coping with hysteresis and creep extension.
PIERARD, Gérald ULg; Pierard, Sébastien ULg; Delvenne, Philippe ULg et al

in ISRN dermatology (2013), 2013

From an engineering standpoint, both the skin and subcutaneous tissue act as interconnected load-transmitting structures. They are subject to a variety of intrinsic and environmental influences. Changes ... [more ▼]

From an engineering standpoint, both the skin and subcutaneous tissue act as interconnected load-transmitting structures. They are subject to a variety of intrinsic and environmental influences. Changes in the cutaneous viscoelasticity represent an important aspect in a series of skin conditions. The aim of this work was to explore the methodology of biomechanical measurements in order to better appreciate the evolution and severity of some connective tissue diseases. The Cutometer MPA 580 (C+K electronic) was used in the steep and progressive suction procedures. Adapting measurement modalities was explored in order to mitigate any variability in data collection. The repeat steep suction procedure conveniently reveals the creep phenomenon. By contrast, the progressive suction procedure highlights the hysteresis phenomenon. These viscoelastic characteristics are presently described using the 2 and 4 mm probes on normal skin and in scleroderma, acromegaly, corticosteroid-induced dermatoporosis, and Ehlers-Danlos syndrome. The apposition of an additional outer contention on the skin altered differently the manifestations of the creep extension and hysteresis among the tested skin conditions. Any change in the mechanical test procedure affects the data. In clinical and experimental settings, it is mandatory to adhere to a strict and controlled protocol. [less ▲]

Detailed reference viewed: 7 (2 ULg)
Full Text
Peer Reviewed
See detailScrutinizing skinfield melanin patterns in young Caucasian women.
Hermanns-Lê, Trinh ULg; Franchimont, Claudine ULg; PIERARD, Gérald ULg

in Expert Opinion on Medical Diagnostics (2013)

Introduction: When using adequate wavelength illumination and high resolution recordings, Caucasian skin color appears uneven. The patterns of faint mosaic melanoderma (FMM) are diverse and possibly ... [more ▼]

Introduction: When using adequate wavelength illumination and high resolution recordings, Caucasian skin color appears uneven. The patterns of faint mosaic melanoderma (FMM) are diverse and possibly related to the risk of skin cancer development. Areas covered: The current peer-reviewed publications about objective methods quantifying FMM are revisited. The images from the Visioscan(R) and Visioface(R) Quick devices are computerized in order to record the ultraviolet light-enhanced visualization (ULEV) and the color-enhanced visualization (CEV) of the skin. Previously published data regarding the FMM are gathered in 20 odd Caucasian women. Seven FMM patterns are distinguished. They appear expressed differently according to body regions, but the mean gray level appears more uniform. Expert opinion: The combination of larger subclinical melanotic macules and ivory spots during early adulthood is apparently associated with an increased risk for non-melanoma skin cancers. [less ▲]

Detailed reference viewed: 5 (1 ULg)
Full Text
See detailThe thousand and one facets of actinic keratosis.
PIERARD, Gérald ULg; FRANCHIMONT, Claudine ULg; DELVENNE, Philippe ULg

Book published by Nova Science Publishers (2013)

Detailed reference viewed: 19 (3 ULg)
Full Text
See detailRegard sur la peau diabétique et ses méhins.
PIERARD, Gérald ULg; RADERMECKER, Régis ULg; SCHEEN, André ULg

in Revue de l'Association Belge du Diabète (2013), 56

La peau exprime certains changements qui sont souvent proportionnels à la durée et la sévérité du diabète. La plupart des composants de la peau sont affectés à des degrés divers, parfois cliniquement ... [more ▼]

La peau exprime certains changements qui sont souvent proportionnels à la durée et la sévérité du diabète. La plupart des composants de la peau sont affectés à des degrés divers, parfois cliniquement imperceptibles, parfois très sévères et invalidants. [less ▲]

Detailed reference viewed: 14 (4 ULg)
Full Text
Peer Reviewed
See detailThe skin landscape in diabetes mellitus. Focus on dermocosmetic management.
PIERARD, Gérald ULg; Seite, Sophie; HERMANNS, Trinh ULg et al

in Clinical, Cosmetic and Investigational Dermatology (2013), 6

BACKGROUND: Some relationships are established between diabetes mellitus (DM) and a series of cutaneous disorders. Specific dermatoses are markers for undiagnosed DM. Other disorders represent supervening ... [more ▼]

BACKGROUND: Some relationships are established between diabetes mellitus (DM) and a series of cutaneous disorders. Specific dermatoses are markers for undiagnosed DM. Other disorders represent supervening complications in an already treated DM patient. OBJECTIVE: To review the information about dermocosmetic care products and their appropriate use in the management and prevention of dermatoses related to DM. METHOD: The peer-reviewed literature and empiric findings are covered. Owing to the limited clinical evidence available for the use of dermocosmetics, a review of the routine practices and common therapies in DM-related dermatoses was conducted. RESULTS: Some DM-related dermatoses (acanthosis nigricans, pigmented purpuric dermatosis) are markers of macrovascular complications. The same disorders and some others (xerosis, Dupuytren's disease) have been found to be more frequently associated with microangiopathy. Other skin diseases (alopecia areata, vitiligo) were found to be markers of autoimmunity, particularly in type 1 DM. Unsurprisingly, using dermocosmetics and appropriate skin care has shown objective improvements of some DM-related dermatoses, such effects improve the quality of life. The most common skin manifestations of DM fall along continuum between "dry skin," xerosis, and acquired ichthyosis, occurring predominately on the shins and feet. Dermocosmetic products improve the feeling of well-being for DM patients. [less ▲]

Detailed reference viewed: 17 (1 ULg)
Full Text
Peer Reviewed
See detailComment j'explore ... l'atteinte fonctionnelle cutanee d'une sclerodermie.
HERMANNS, Trinh ULg; Franchimont, Claudine ULg; PIERARD, Gérald ULg et al

in Revue Médicale de Liège (2013), 68(3), 141-7

Scleroderma refers to distinct clinical presentations sharing in common a sclerotic process most often clinically obvious on the skin. The involvement possibly affects the skin alone in morphea or in ... [more ▼]

Scleroderma refers to distinct clinical presentations sharing in common a sclerotic process most often clinically obvious on the skin. The involvement possibly affects the skin alone in morphea or in combination with internal lesions in systemic sclerosis. Some objective and non-invasive functional assessments are useful for better appreciating the severity and evolution of the disease, as well as to monitor the therapeutic efficacy. In this endeavour, in vivo measurements of the skin mechanical properties are unsurprisingly informative. [less ▲]

Detailed reference viewed: 18 (7 ULg)
Full Text
Peer Reviewed
See detailRisquer sa peau pour quelques "joints".
Hermanns-Lê, Trinh ULg; DELVENNE, Philippe ULg; PIERARD, Gérald ULg et al

in Revue Médicale de Liège (2013), 68(5-6), 311-314

Detailed reference viewed: 14 (6 ULg)