Critical assessment of diabetic xerosis

Diabetes-associated dermatological manifestations in primary care and their association with vascular complications

INTRODUCTION

Although type 2 diabetes mellitus (DM) is a global public health problem, the diabetes-associated dermatological (non-infectious) manifestations (DADM) remain poorly understood and under-diagnosed. We aimed to evaluate the prevalence of 7 known DADM in a primary care setting, and their association macro/microvascular complications.

METHODS

Cross-sectionnal study included patients consulting in general practice for DM-follow up, from November 2016 to January 2017. Patients aged <18 years old or consulting for other reason than DM follow up were excluded. Each patient were screened for diabetic dermopathy (DD), Huntley's papules (HP), necrobiosis lipoidica diabeticorum (NL), acanthosis nigricans (AN), cheiroarthropathy (CA, or stiff hand syndrom), scleredema adultorum of Buschke (SB) and bullosis diabeticorum (BD).

RESULTS

213 diabetic patients were included over a period of 3 months. We found a prevalence of 17.8% (38 patients) for DD, 8.5% (18) for HP, 2.8% (6) for NL, 2.3% (5) for AN, 1.9% (4) for CA, 1.4% (3) for SB and 1.4% (3) for BD. DADM seems to be a risk factor for vascular complications (OR 1.97, p ≤ 0.001). Association with vascular involvement was stronger with DD and macroangiopathy (OR 1.86, p ≤ 0.001), and with NL and microangiopathy (OR 9.7, p ≤ 0.001).

CONCLUSION

In primary care, DM-associated dermatological manifestations present similar prevalence rates to a tertiary care setting, based on litterature. Complete dermatological examination of diabetic patients is essential and could lead to a better overall management of the pathology, as diabetic cutaneous manifestations appear as a sign of vascular involvement.

Comparing skin characteristics and molecular markers of xerotic foot skin between diabetic and non-diabetic subjects: An exploratory study

BACKGROUND

Xerosis cutis of the feet is one of the most common skin conditions among type 2 diabetics. Whether skin dryness among diabetic patients is different from 'general' skin dryness is unclear. The overall aim was to compare the structure, function and molecular markers of dry and cracked foot skin between diabetics and non-diabetics.

METHODS

The foot skin of 40 diabetics and 20 non-diabetics was evaluated. A clinical assessment of skin dryness was performed and transepidermal water loss, stratum corneum hydration, skin surface pH, epidermal thickness, skin roughness, elasticity and structural stiffness were measured. Ceramides, natural moisturizing factors, histamines, proteins and molecular markers of oxidative stress were analyzed based on a non-invasive sampling method for collection of surface biomarkers.

RESULTS

The mean number of superficial fissures in the diabetic group was nearly three times higher than in the non-diabetic group (11.0 (SD 6.2) vs. 3.9 (SD 4.2)). The skin stiffness was higher in the diabetic group and the values of almost all molecular markers showed considerably higher values compared to non-diabetics. Malondialdehyde and glutathione were lower in the diabetic sample.

CONCLUSIONS

The high number of superficial fissures may be based on an increased stiffness of dry diabetic foot skin combined with different concentrations of molecular markers in the stratum corneum compared to dry foot skin of non-diabetics.

[Skin health promotion in the elderly]

BACKGROUND

Skin aging is associated with anatomical and physiological changes. These changes are not pathological; nevertheless, reduced functional skin capacity increases the susceptibility to skin diseases and functional disorders. Especially in old age, the clinical manifestation of skin changes differs greatly between individuals.

PURPOSE

This contribution focuses on a critical reflection of the concept of preventative skin care and skin health promotion in the aged.

RESULTS

Preventive skin care in the aged includes all activities to cleanse and care for the skin which contribute to health promotion and which reduce the probability developing skin disorders or diseases. Preventive skin care in the aged can be classified into primary, secondary, and tertiary prevention, but the empirical evidence supporting individual interventions is heterogeneous.

CONCLUSION

There are no formally developed guidelines or recommendations for basic skin care in the aged. Thus, preventive skin care in the elderly is very likely to be underused.

Use of a urea, arginine and carnosine cream versus a standard emollient glycerol cream for treatment of severe xerosis of the feet in patients with type 2 diabetes: a randomized, 8 month, assessor-blinded, controlled trial

BACKGROUND

No long-term data are available regarding the effects of emollients in treating severe foot skin xerosis in patients with diabetes.

STUDY AIM

We evaluated the efficacy of 8 month urea, arginine and carnosine cream (UC) in comparison with a glycerin-based emollient cream (SEC) in type 2 patients with diabetes who had severe foot xerosis.

SUBJECTS AND METHODS

We assessed the effect of UC and SEC on skin hydration in a randomized, assessor-blinded study in 50 patients treated with UC (N = 25) or SEC (N = 25) for 32 weeks with a twice daily application. Primary outcomes were a 9 point Xerosis Assessment Scale (XAS) score and a 4 point Overall Cutaneous Score (OCS), evaluated at baseline and after 4, 12 and 32 weeks. Skin hydration and desquamation were also objectively evaluated by means of a bio-impedance skin analysis device (Hydr8 * ) at baseline and at week 32.

RESULTS

UC induced greater hydration than SEC (p = 0.001) with a 91% reduction at week 32 in XAS score vs. baseline. After 4 weeks, compared with the SEC treated group, the XAS score in the UC treated group was significantly lower. OCS was reduced by 27% from baseline to end of the study in the UC group, and increased by 8% in the SEC group (p = 0.02; between groups). At month 8, skin hydration and desquamation evaluated by the digital skin analysis system statistically improved in UC treated subjects in comparison with baseline and SEC group values. This study was not double-blind. In order to overcome this problem we performed an assessor-blinded evaluation of the primary endpoints and used an objective measurement tool for skin hydration and desquamation assessment.

CONCLUSION

Using a urea, arginine and carnosine cream for 8 months increases skin hydration and improves skin dryness in type 2 diabetic patients in comparison with a glycerol-based emollient cream, with a greater efficacy observed as early as 4 weeks into treatment.

The science of dermocosmetics and its role in dermatology

Our increased knowledge of normal skin physiology has ushered in a subtle revolution in cosmetic science. Originally designed as preparations to enhance personal appearance by direct application on to the skin, cosmetics have now taken on a new role in dermatology, through the support of the management of many skin disorders. This evolving role of cosmetics in skin care is primarily due to scientific and technological advancements that have changed our understanding of normal skin physiology and how cosmetics modify its appearance both physically and biologically. The vast array of techniques currently available to investigate skin responsivity to multiple stimuli has brought about a new era in cosmetic and dermocosmetic development based on a robust understanding of skin physiology and its varied responses to commonly encountered environmental insults. Most cosmetic research is undertaken on reconstructed skin models crucial in dermatological research, given the strict ban imposed by the European Union on animal testing. In addition, the design and conduct of trials evaluating cosmetics now follow rules comparable to those used in the development and evaluation of pharmaceutical products. Cosmetic research should now aim to ensure all trials adhere to strictly reproducible and scientifically sound methodologies. The objective of this review is to provide an overview of the multidisciplinary scientific approach used in formulating dermocosmetics, and to examine the major advances in dermocosmetic development and assessment, the safety and regulatory guidelines governing their production and the exciting future outlook for these dermocosmetic processes following good practice rules.

The skin landscape in diabetes mellitus. Focus on dermocosmetic management

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.