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

Skin injury triggers food allergy in mouse model

1 week 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

2 weeks 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

3 weeks 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

1 month 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

1 month 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

2 months ago | 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.
Lack of quality, reliability of spironolactone acne Tx videos on TikTok

2 months ago | derm.city | John Evans

There is a concerning gap in the quality and reliability of information on the TikTok short video platform regarding the use of spironolactone for the treatment of acne. These findings come from a paper published in the Journal of Drugs in Dermatology (Feb. 2025; 24(2):e7). “With the wealth of content offered on TikTok, young people are turning to this medium to seek guidance on various health-related topics, including information about acne and acne medications,” the authors write.
Bacteria-derived compound may slow vitiligo progression

2 months ago | derm.city | John Evans

Early research suggests a compound derived from bacteria significantly slows the progression of vitiligo and may restore pigmentation, according to findings published in the Journal of Investigative Dermatology. In the pre-clinical study, investigators injected exopolysaccharides (EPSs) isolated from Bacillus subtilis into a strain of vitiligo-prone mice. Treatments were administered weekly for 18 weeks. By the end, pigment loss on the mice’s backs was reduced by 74%.