Results 71 to 80 of about 80,730 (306)

Enhancing dermal collagen density towards youthfulness: A comparative study of PCL, PLLA, and PDO thread implantation in aging rats model [PDF]

open access: yesIranian Journal of Basic Medical Sciences
Objective(s): Both intrinsic and extrinsic factors cause skin aging. Intrinsic aging is characterized by decreased collagen density, particularly collagen types I (COL1A1) and III (COL3A1), and an increase in the COL1/COL3 ratio.
Mary Soen   +2 more
doaj   +1 more source

β-endorphin suppresses ultraviolet B irradiation-induced epidermal barrier damage by regulating inflammation-dependent mTORC1 signaling

open access: yesScientific Reports, 2023
Solar ultraviolet B (UVB) radiation triggers excessive inflammation, disrupting the epidermal barrier, and can eventually cause skin cancer. A previous study reported that under UVB irradiation, epidermal keratinocytes synthesize the proopiomelanocortin ...
Hyung-Su Kim   +4 more
doaj   +1 more source

UVB radiation induced effects on cells studied by FTIR spectroscopy

open access: yes, 2010
We have made a preliminary analysis of the results about the eVects on tumoral cell line (lymphoid T cell line Jurkat) induced by UVB radiation (dose of 310 mJ/cm^2) with and without a vegetable mixture. In the present study, we have used two techniques:
A. Congiu Castellano   +21 more
core   +1 more source

A path from melanocyte stem cells to cutaneous melanoma illuminated by UVB

open access: yesMolecular & Cellular Oncology, 2018
The relationship between melanocyte stem cells (MCSCs) and melanoma has been unclear. We recently demonstrated that melanoma-prone MCSCs are able to initiate cutaneous melanoma following stem cell activation through ultraviolet-B (UVB) exposure or ...
Hyeongsun Moon, Andrew C. White
doaj   +1 more source

The recent relationship between ultraviolet-B radiation and biotic resistance in plants: a novel non-chemical strategy for managing biotic stresses

open access: yesPlant Signaling & Behavior, 2023
Ultraviolet-B radiation (UVB; 280–315 nm) is a significant environmental factor that alters plant development, changes interactions between species, and reduces the prevalence of pests and diseases.
Gideon Sadikiel Mmbando
doaj   +1 more source

Atomic and molecular adsorption on transition-metal carbide (111) surfaces from density-functional theory: A trend study of surface electronic factors

open access: yes, 2010
This study explores atomic and molecular adsorption on a number of early transition-metal carbides (TMC's) by means of density-functional theory calculations.
Lundqvist, Bengt I.   +2 more
core   +1 more source

The Adaptive Significance of Natural Genetic Variation in the DNA Damage Response of Drosophila melanogaster. [PDF]

open access: yes, 2016
Despite decades of work, our understanding of the distribution of fitness effects of segregating genetic variants in natural populations remains largely incomplete. One form of selection that can maintain genetic variation is spatially varying selection,
Begun, David J   +3 more
core   +4 more sources

Juvenile Mycosis Fungoides: A Multicenter Retrospective Italian Study

open access: yesJEADV Clinical Practice, EarlyView.
This multicenter retrospective study included 29 juvenile mycosis fungoides (JMF) patients from five Italian centres with confirmed histopathological diagnosis. most often presents with hypopigmented/classic variants and CD8+ phenotype. Early‐onset cases ( < 14 years) show better long‐term outcomes.
Andrea Michelerio   +8 more
wiley   +1 more source

Protective Effect of Lemon (Citrus Limon L.) Ethanol Extract Cream as an Antioxidant Against Exposure to Ultraviolet B Rays in the Skin of Male Wistar (Rattus Norvegicus) Rats [PDF]

open access: yes, 2020
Background: Indonesia is an archipelagic country and one of the tropical countries that get sun exposure all the time. Sun exposure can have beneficial and detrimental effects in life. Exposure to radiation can cause acute effects in the form of erythema
Dewanti, D. A. (Dewa)   +4 more
core  

Therapeutic Options for IgA Pemphigus in Patients Refractory to Dapsone

open access: yesJEADV Clinical Practice, EarlyView.
ABSTRACT IgA pemphigus is a rare autoimmune blistering disorder with limited therapeutic guidance available due to its rarity and complex presentation. This comprehensive analysis evaluates the therapeutic outcomes of 67 published patients, emphasising the significant role of dapsone as the first‐line treatment.
Lorenz Frasheri   +2 more
wiley   +1 more source

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