Genetics & Epigenetics

Key Insight: Rosacea risk and severity are influenced by genetic predispositions, including immune and inflammation-related gene variants.

• Assessment of the genetic basis of rosacea by genome-wide association study (Chang et al., 2015)

• Genetic variations associated with rosacea and their relationship to inflammation and immune response (Aponte et al., 2018)

• Epigenetic modifications in inflammatory skin diseases including rosacea (Holmes et al., 2022)

Nervous System & Rosacea

Key Insight: Nervous system dysregulation, including stress-related responses and sympathetic nerve activity, significantly contributes to rosacea symptoms.

• Neurogenic inflammation and rosacea: The role of nerves, neuropeptides, and TRP channels (Steinhoff et al., 2013)

• Stress-induced exacerbation of rosacea: Insights into neuroimmune interactions (Choi et al., 2019)

• The role of the autonomic nervous system in rosacea pathophysiology (Sulk et al., 2021)

Gut Health & Rosacea

Key Insight: Imbalances in gut microbiota and gastrointestinal health significantly correlate with rosacea development and severity.

• Gut–Skin Axis: Gut Microbiota as a Link Between Rosacea and Gastrointestinal Comorbidities (Arora & Kumar, 2023)

• Rosacea and the Gastrointestinal System (Searle et al., 2020)

• Rosacea, Germs, and Bowels: A Review on Gastrointestinal Comorbidities and Gut–Skin Axis of Rosacea (Wang & Chi, 2021)

• Dysbiotic Gut Microbiota in Patients with Inflammatory Rosacea: Another Clue Towards the Existence of a Brain–Gut–Skin Axis (Moreno-Arrones et al., 2021)

• Helicobacter pylori Infection but Not Small Intestinal Bacterial Overgrowth May Play a Pathogenic Role in Rosacea (Gravina et al., 2015)

• Effects of the Treatment for Small Intestine Bacterial Overgrowth on Rosacea (Drago et al., 2017)

• Helicobacter pylori Infection and Small Intestinal Bacterial Overgrowth – More Than What Meets the Eye (Dharan & Wozny, 2022)

• The Association Between Helicobacter pylori Infection and Rosacea (Saleh et al., 2018)

• Small intestinal bacterial overgrowth (SIBO) and rosacea: Clinical effectiveness of its eradication (Parodi et al., 2008)

• Gut microbiota dysbiosis and rosacea: Potential links and therapeutic implications (Salem et al., 2018)

• The gut-skin axis in rosacea: Evidence of gut microbiome and intestinal barrier dysfunction (Woo et al., 2020)

Hormonal Health & Rosacea

Key Insight: Hormonal fluctuations, particularly involving estrogen, progesterone, and cortisol, strongly influence rosacea flare-ups, especially in women.

• Association of rosacea with hormonal contraceptives and hormone replacement therapy (Spoendlin et al., 2014)

• Rosacea severity correlates with increased cortisol levels and stress hormones (Yazici et al., 2016)

• Rosacea and menopause: Hormonal influences and clinical management (Wollina et al., 2020)

Vascular Dysregulation & Rosacea

Key Insight: Vascular dysregulation and blood vessel abnormalities significantly contribute to rosacea symptoms like flushing and redness.

• Vascular abnormalities in rosacea: Alterations in cutaneous blood vessels (Schwab et al., 2011)

• Vascular endothelial growth factor (VEGF) expression in rosacea skin lesions (Crawford et al., 2017)

• Endothelial dysfunction and angiogenesis in rosacea (Gomaa et al., 2023)

Detox Pathways & Rosacea

Key Insight: Impaired detoxification pathways exacerbate rosacea by increasing systemic inflammation and toxin accumulation.

• The role of oxidative stress and impaired detoxification pathways in rosacea (Weinkle et al., 2015)

• Oxidative stress markers in rosacea: Potential therapeutic implications (Li et al., 2018)

• Liver function and systemic detoxification in patients with chronic inflammatory skin conditions including rosacea (Moon et al., 2022)

Skin Barrier, Demodex & Skin Microbiome

Key Insight: An impaired skin barrier, Demodex mites overgrowth, and microbiome dysbiosis significantly influence rosacea severity and inflammation.

• Rosacea Symptoms Significantly Decrease After Skin Barrier Improvement (Mieze et al., 2022)

• Rosacea is Characterized by a Profoundly Diminished Skin Barrier (Medgyesi et al., 2020)

• Demodex density and inflammatory markers in rosacea (Forton & De Maertelaer, 2020)

• The role of skin microbiota alterations in rosacea pathogenesis (Wang et al., 2021)

• Skin barrier dysfunction and ceramide deficiency in rosacea (Rainer et al., 2022)

• Evaluation of demodicosis, nailfold capillaroscopy, and oxidative stress in rosacea: a case-control study (Aktaş Karabay & Demirel, 2021)

Metabolic Imbalances & Rosacea

Key Insight: Rosacea frequently associates with insulin resistance, blood sugar dysregulation, and metabolic syndrome.

• Association of insulin resistance and rosacea severity (Akin Belli et al., 2016)

• Rosacea and the risk of diabetes and metabolic syndrome (Egeberg et al., 2017)

• Metabolic syndrome prevalence and insulin resistance among rosacea patients: A systematic review (Erdogan et al., 2023)

Cellular Stress (Oxidative Stress & ROS)

Key Insight: Increased oxidative stress and reactive oxygen species drive inflammation and skin damage in rosacea.

• Evaluation of serum TWEAK, TRAIL, and oxidative stress markers in rosacea patients (Durmaz et al., 2022)

• Oxidative stress and antioxidant capacity in rosacea (Tisma et al., 2009)

• Role of oxidative stress in rosacea pathophysiology (Jones et al., 2017)

• Antioxidant treatments in rosacea: Mechanisms, benefits, and clinical evidence (Luo et al., 2022)

Chronic/Systemic Inflammation & Rosacea

Key Insight: Rosacea is fundamentally driven by chronic inflammation and immune system dysregulation.

• Rosacea as a systemic inflammatory disease: Review of current evidence (Holmes, 2013)

• Inflammatory cytokine profiles in rosacea patients: Systemic implications (Woo et al., 2016)

• Rosacea pathogenesis: An update on systemic inflammatory mechanisms (van Zuuren et al., 2021)

Mind-Body Connection & Emotional Health in Rosacea

Key Insight: Psychological stress, emotional health, and trauma significantly impact rosacea symptoms and progression.

• Psychological Factors in Rosacea (Orion & Wolf, 2012)

• Psychodermatology: The Interface of Psychiatry and Dermatology (Gupta & Gupta, 2019)

• Stress, Emotions, and Skin: Psychosomatic Aspects of Rosacea (Rainer et al., 2021)