John Evans

Toronto

Associate Editor at Chronicle of Neurology & Psychiatry

Associate Editor at The Chronicle of Skin & Allergy

Associate Editor at The Chronicle of Healthcare Marketing

Assistant Editor, Chronicle Companies

Articles

Sun protective behaviours declining in Canada, U.S.

6 days ago | derm.city | John Evans

Findings from a Canadian study show that despite decades of public health messaging, Canadians are spending more time in the sun and using less sun protection, even as melanoma rates are rising. Similarly, an American Academy of Dermatology (AAD) survey has revealed low rates of sun protective behaviour, even though half of Americans are concerned about skin aging.
Melanoma rates growing among New Zealand’s Māori

2 weeks ago | derm.city | John Evans

Rates of melanoma skin cancer among the Māori population are growing in New Zealand, the nation with the highest melanoma mortality rate in the world, said Dr. Monique Mackenzie (Ngāti Tūwharetoa) in a presentation at the first annual Indigenous Skin Spectrum Global Summit. As with many other darker-skinned populations, the Māori tend to present later, with greater Breslow thickness and have poorer outcomes. However, research in this population faces several challenges.
Skin injury triggers food allergy in mouse model

1 month ago | derm.city | John Evans

Findings from a new study suggest skin injuries may contribute to the development of food allergies. The study authors say this finding may help explain why the prevalence of childhood food allergy is higher in individuals with eczema. The study, published in Science Immunology, was led by researchers at the Yale School of Medicine (YSM) in New Haven, Conn.
Sweetener molecule suppresses hair follicles in lab test

1 month ago | derm.city | John Evans

New research published in the British Journal of Dermatologyhas found that applying a common food additive to hair follicles can activate taste receptors and prevent hair growth in lab tests. While taste receptors are usually associated with tastebuds in the mouth, they are found throughout the body and perform various functions. Although taste receptors have previously been found in the skin, their function is unknown.
One week to the Indigenous Skin Spectrum Global Summit

1 month ago | derm.city | John Evans

There is still time to register for the first Indigenous Skin Spectrum Global Summit, which will be held in Montreal on April 5, 2025. The 2025 Indigenous Skin Spectrum Global Summit is dedicated to improving the cultural competence of healthcare providers worldwide. Our world-renowned faculty will provide practical and up-to-date clinical information on the latest and best research in the context of Indigenous, circumpolar, and rural communities.
Topical steroid withdrawal dermatitis linked to excess NAD+

1 month ago | derm.city | John Evans

Researchers at the U.S. National Institutes of Health (NIH) have determined that dermatitis resulting from topical steroid withdrawal (TSW) is distinct from eczema and is caused by an excess of nicotinamide adenine dinucleotide (NAD+), a form of vitamin B3. Scientists from NIH’s National Institute of Allergy and Infectious Diseases (NIAID) identified treatments that could be studied in clinical trials for the condition based on their potential to lower levels of NAD+.
Sun protection behaviour still low in U.S., especially among ethnic minorities

2 months ago | derm.city | John Evans

Findings from a new study exploring the associations between the reported number of sunburns and sociodemographic characteristics in the U.S. and examining the prevalence of protective skin behaviours reinforce the need for public health interventions that effectively disseminate information on skin cancer risk across ethnic minority groups, especially in underserved communities. The findings were published in the American Journal of Lifestyle Medicine.
SSAT inhibition a possible new target for psoriasis Tx

2 months ago | derm.city | John Evans

Findings from a new study published in the journal Immunity suggest it may be possible to restore the function of certain anti-inflammatory immune cells in a targeted manner as a treatment for psoriasis. In the paper, the authors note that most previous treatment approaches for psoriasis have mainly focused on inhibiting pro-inflammatory immune cells. The investigators say their findings may pave the way for developing a therapy that works more precisely and is associated with fewer side effects.
One in six U.S. parents agree teens may receive non-surgical cosmetic Tx

2 months ago | derm.city | John Evans

Findings from a U.S. national poll show one-sixth of parents say teenagers should be allowed to receive non-surgical cosmetic procedures with parental approval. The poll was conducted by University of Michigan Health and C.S. Mott Children’s Hospital in Ann Arbor, Mich. However, one-half of parents only support teens getting non-surgical cosmetic procedures if there’s a valid reason, and their beliefs about which reasons count as valid differ.
Cancer immunotherapy also reduces actinic keratoses

Feb 14, 2025 | derm.city | John Evans

New findings show that immunotherapy, used to treat people with advanced cancers, also helps reduce actinic keratoses by at least 65%, potentially reducing future keratinocyte carcinomas. The research was published online ahead of print in JAMA Dermatology (Feb. 12, 2025). For the study, for 12 months, researchers monitored 23 patients who had received immunotherapy for unrelated cancers. They found the treatment also targeted cancerous and precancerous lesions, causing some to disappear completely.