Alexis E. Carrington’s research while affiliated with University of California, Davis and other places

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Publications (9)


The Gut and Skin Microbiome in Alopecia: Associations and Interventions
  • Literature Review

October 2023

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37 Reads

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8 Citations

Journal of Clinical and Aesthetic Dermatology

Alexis E Carrington

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Jessica Maloh

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[...]

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Raja K Sivamani

Papulopustular rosacea during nivolumab therapy of metastatic squamous cell esophageal carcinoma

October 2021

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11 Reads

Dermatology Online Journal

We present a 76-year old man who developed papulopustular rosacea after receiving nivolumab treatment for his esophageal carcinoma, metastatic to the lungs. Nivolumab is an emerging cancer therapy whose immune-related adverse events are still not fully recognized and likely underreported. The treatment has been reported to cause a myriad of cutaneous immune-related adverse events. However, nivolumab-induced-papulopustular rosacea has been scarcely reported. Thus, this case presents a clinically important finding that physicians should be aware of when seeing patients on nivolumab therapy.


Anti-MDA-5 negative, anti-Ku positive clinically amyopathic dermatomyositis

April 2021

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10 Reads

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1 Citation

Dermatology Online Journal

We present a patient with anti-MDA5 negative, anti- Ku positive clinically amyopathic dermatomyositis (CADM). A 61-year-old woman presented with a chief complaint of a 20-year history of a pruritic rash that was active on her face, chest, hands, legs, and back. A mildly scaly, erythematous, photo-distributed eruption along with slightly violaceous, scaly papules accentuated on the wrist, metacarpophalangeal joints, proximal interphalangeal and distal interphalangeal joints. Antibody profile was significant for positive ANA and anti-dsDNA, elevated anti-TIF-1gamma (RDL)/p155, and weakly positive anti Ku. Biopsy was consistent with dermatomyositis. Melanoma differentiation-associated gene 5 antibody (anti-MDA-5) has been identified as the most commonly associated autoantibody found in CADM and is associated with poor prognosis and a biomarker for the diagnosis of rapidly progressive interstitial lung disease. To our knowledge, our patient is the first case of negative anti-MDA-5 and anti-Ku positive CADM.


CONSORT (Consolidated Standards of Reporting Trials) flow diagram.
(a) Almond subject and (b) control subject facial images at baseline and at 24 weeks of receiving the almond or snack interventions, respectively.
Computer-based photographic analysis of wrinkle severity was significantly decreased in the almond intervention group compared with the control intervention by 15% and 16% at week 16 and 24, respectively. Significant p values are noted on the figure. Error bars represent the standard error of the mean (SEM).
Relative change in skin pigment intensity was measured showing a 20% reduction from baseline in the almond group at both week 16 and 24. Significant p values are noted on the figure. Error bars represent SEM.
Skin hydration was measured resulting in no significant difference between the (A) almond and (B) control groups. Significant p values are noted on the figure. Error bars represent SEM.

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Prospective Randomized Controlled Trial on the Effects of Almonds on Facial Wrinkles and Pigmentation
  • Article
  • Full-text available

February 2021

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339 Reads

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18 Citations

Background: Almonds have long been studied as a rich source of fatty acids, phytochemical polyphenols and antioxidants such as vitamin E. A recent study compared almond supplementations to a calorie-matched intervention for 16 weeks, yielding statistically significant improvement in wrinkle severity in postmenopausal women with Fitzpatrick skin types I and II that received almonds. This study furthers that assessment with a larger population and duration of 24 weeks to assess the influence of almond consumption on wrinkle severity, skin pigmentation and other skin biophysical profiles. Objective: To investigate the effects of almond consumption on photoaging such as wrinkles and pigment intensity as well as facial biophysical parameters such as sebum production, skin hydration and water loss. Design and interventions: A prospective, randomized controlled study assessed postmenopausal women with Fitzpatrick skin types I or II who consumed 20% of their daily energy consumption in either almonds or a calorie-matched snack for 24 weeks. A facial photograph and image analysis system was used to obtain standardized high-resolution photographs and information on wrinkle width and severity at 0, 8, 16 and 24 weeks. Measurements of transepidermal water loss (TEWL), skin pigmentation, skin hydration and sebum production were also completed at each visit. Results: The average wrinkle severity was significantly decreased in the almond intervention group at week 16 and week 24 compared to baseline by 15% and 16%, respectively. Facial pigment intensity was decreased 20% in the almond group at week 16 and this was maintained by week 24. There were no significant differences in skin hydration or TEWL in the almond group compared to the control, although sebum excretion was increased in the control group. Conclusion: The daily consumption of almonds may improve several aspects of photoaging such as facial wrinkles and pigment intensity in postmenopausal women. In conclusion, the daily consumption of almonds may contribute to the improvement of facial wrinkles and reduction of skin pigmentation among postmenopausal women with Fitzpatrick skin types I and II.

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Figure 1. There are well-demarcated, erythematous plaques with overlying scale on the chest and abdomen.
Figure 2. The ear helix and conchal bowl display erythematous scaly gray plaques.
Figure 3. There is extensive cheilitis of the lips. The tongue displays multiple erosions and white lacy plaques on the right lateral aspect.
Figure 6. Skin biopsy of plaque on the chest: histopathology displays an interface dermatitis with superficial and deep perivascular and periadnexal lymphohistiocytic infiltrate characteristic of cutaneous lupus erythematosus. H&E, 10×.
Laser hair reduction for hidradenitis suppurativa warrants insurance coverage

April 2020

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613 Reads

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5 Citations

Dermatology Online Journal

Hidradenitis suppurativa is a chronic, painful disease that significantly reduces quality of life. Laser hair reduction is one modality that can be used in combination with other treatments to ameliorate the condition. We argue that insurance should provide coverage for this necessary service.



Citations (5)


... The composition and resilience of the scalp stratum corneum barrier have been shown to be important in preventing scaling and itching and are linked to better hair growth [103,113,114]. The relevance of the scalp and hair follicle microbiome (and possibly the gut microbiome) to healthy scalp and hair growth is emerging through microbiome sampling studies and the impact of product interventions [115][116][117][118][119]. Sebum synthesis and secretion are impacted physiologically, e.g., through androgens and in older women, where menopause causes sebaceous atrophy and hair that is more 'dry' and less manageable. ...

Reference:

Hair Longevity—Evidence for a Multifactorial Holistic Approach to Managing Hair Aging Changes
The Gut and Skin Microbiome in Alopecia: Associations and Interventions
  • Citing Article
  • October 2023

Journal of Clinical and Aesthetic Dermatology

... 177 Furthermore, regular almond consumption can reduce facial wrinkles and pigment intensity in postmenopausal women. 178 Natural compounds such as icariin 179 and extracts of Aronia melanocarpa, 117,180 Crocus sativus, 181 Tinospora cordifolia, 182 peanut skin, 183,184 and Hypericum perforatum 185,186 modulate AMPK signaling. The plant extracts and compounds reviewed in this study attenuate inflammatory senescence by regulating the AMPK-SIRTs pathway. ...

Prospective Randomized Controlled Trial on the Effects of Almonds on Facial Wrinkles and Pigmentation

... 8 This increase in usage also altered the way information is circulated; some platforms including YouTube have been used to deliver and share health-related information among groups of people sharing the same medical condition. 9,10 There have been studies which assessed dermatology-related content on different social media platforms, citing misinformation as one of the primary challenges in these setups. [11][12][13] Few studies have documented vitiligo-related content in the social media platform YouTube, which highlighted the same problems of misinformation, but also provided insights on patient perspectives and psychosocial support. ...

Vitiligo on YouTube: A Cross-sectional Analysis
  • Citing Article
  • January 2021

Journal of the American Academy of Dermatology

... Therefore, it is crucial to make these treatments readily accessible to patients. The idea of evaluating these treatments under health insurance coverage is currently being discussed [44,45]. LHR is a more cost-effective method compared to biological treatments [46]. ...

Laser hair reduction for hidradenitis suppurativa warrants insurance coverage

Dermatology Online Journal

... Goodfaith attempts to explore skin appearance across multiple Fitzpatrick values [14] then become beholden to a scale that was designed to classify skin according to its damage susceptibility under UV light and various treatments. We instead advocate multi-dimensional scales designed for visual appearance, such as the Pantone-based scale inspired by photographer Angélica Dass [3]. ...

Angélica Dass’ humanae, a spectrum of skin tones: Angélica Dass’ humanae

International Journal of Dermatology