[|Since psoriasis is a polygenic disease, it cannot be the outcome of a
single cell anomaly – again, here I disagree strongly.|auteur195]
[|I strongly support the statement "psoriasis
is the outcome of a skin cell anomaly". Indeed, we cannot consider psoriasis a
defect in one cell type. Although T-cells have received a lot of attention, it
is intriguing that anti-TNFa
treatments are more effective as compared to T-cell specific approaches. It is
the broad interaction of TNF-a which
proves to be essential for a substantial therapeutic effect, whilst T-cell
targeted treatments have a more modest efficacy.|auteur197]
It has been clearly demonstrated for over 30 years now, particularly by Gerald Krueger, that grafting lesional or non lesional psoriatic skin onto a nude mouse ends in maintaining a psoriatic phenotype in the form of persistent epidermal hyperproliferation, when comparing these grafts with normal skin grafts. This epidermal hyperproliferation is only produced if the dermis is also grafted, indicating that dermal cells are necessary for the expression of a psoriatic phenotype. More recently, it has been shown that activated T lymphocytes from a psoriasis plaque, when injected into a psoriatic skin grafted onto a nude mouse, led to the appearance of a clinical and histological psoriasis plaque. By contrast, injecting these same cells into normal skin grafted onto the nude mouse does not have this effect. The inflammatory cells, therefore, only cause psoriasis to appear if they encounter abnormal skin cells.
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Recent publications on Psoriasis and Atopic Dermatitis
on Psoriasis
Screening for cardiovascular comorbidity in United States outpatients with psoriasis, hidradenitis, and atopic dermatitis.
Arch Dermatol Res.
2021 Apr , 313, (3):163-171.
Psoriasis, hidradenitis, and atopic dermatitis (AD) are associated with increased cardiometabolic comorbidities. Yet, little is known about screening rates for cardiometabolic comorbidities in patients with these disorders. The objective of this study is to determine rates and predictors of cardiovascular screening among patients with psoriasis, AD, and hidradenitis in the United States. Data from the 2006-2015 National Ambulatory Medical Care Survey were analyzed, including 67,581 (...)
see on pubmed
Nanoliposomes@Transcutol for Skin Delivery of 8-Methoxypsoralen.
Sinico C et al.
Nanoliposomes@Transcutol for Skin Delivery of 8-Methoxypsoralen.
J Nanosci Nanotechnol.
2021 May 01, 21, (5):2901-2906.
8-methoxypsoralen is the most common drug in psoralen plus ultraviolet light irradiation therapy for the treatment of severe psoriasis. Despite of the efficacy, its classic oral administration leads to several serious adverse effects. However, the topical psoralen application produces a drug skin accumulation lower than that obtained by oral administration, due to the drug low skin permeability. In this paper, 8-methoxypsoralen loaded Penetration Enhancer-containing Vesicles were prepared (...)
see on pubmed
Catalpol ameliorates psoriasis-like phenotypes via SIRT1 mediated suppression of NF-κB and MAPKs signaling pathways.
Bioengineered.
2021 Dec , 12, (1):183-195.
Psoriasis is a chronic inflammatory skin disease that affects approximately 2% of worldwide population, and causing long-term troubles to the patients. Therefore, it is urgent to develop safe and effective therapeutic drugs. Catalpol is a natural iridoid glucoside, that has several remarkable pharmacological effects, however, whether catalpol can alleviated psoriasis has not been explored. The goal of the present work is to study the role of catalpol in psoriasis in vivo and in vitro. (...)
see on pubmed
on Atopic Dermatitis
Screening for cardiovascular comorbidity in United States outpatients with psoriasis, hidradenitis, and atopic dermatitis.
Arch Dermatol Res.
2021 Apr , 313, (3):163-171.
Psoriasis, hidradenitis, and atopic dermatitis (AD) are associated with increased cardiometabolic comorbidities. Yet, little is known about screening rates for cardiometabolic comorbidities in patients with these disorders. The objective of this study is to determine rates and predictors of cardiovascular screening among patients with psoriasis, AD, and hidradenitis in the United States. Data from the 2006-2015 National Ambulatory Medical Care Survey were analyzed, including 67,581 (...)
see on pubmed
Qingxue jiedu formulation ameliorated DNFB-induced atopic dermatitis by inhibiting STAT3/MAPK/NF-κB signaling pathways.
J Ethnopharmacol.
2021 Apr 24, 270:113773.
Qingxue jiedu Formulation (QF) is composed of two classic prescriptions which have been clinically used for more than 5 centuries and appropriately modified through basic theory of traditional Chinese medicine for treating various skin inflammation such as atopic dermatitis (AD), acute dermatitis and rash. Although QF possesses a prominent clinical therapeutic effect, seldom pharmacological studies on its anti-AD activity are (...)
see on pubmed
Methicillin-resistant from infected skin lesions present several virulence genes and are associated with the CC30 in Brazilian children with atopic dermatitis.
Virulence.
2021 Dec , 12, (1):260-269.
Atopic dermatitis (AD) is a chronic inflammatory skin disease and colonization by may affect up to 100% of these patients. Virulent and resistant isolates can worsen AD patient clinical condition and jeopardize the treatment. We aimed to detect virulence genes and to evaluate the biofilm production of isolates from infected skin lesions of children with AD. Methicillin resistance was detected by phenotypic and molecular tests and the virulence genes were detected by PCR. Biofilm formation (...)
see on pubmed
