Publications by authors named "Walter Nahm"

Background: Tralokinumab is a monoclonal antibody that specifically neutralizes interleukin (IL)-13, a key driver of skin inflammation and barrier abnormalities in atopic dermatitis (AD). This study evaluated early and 2-year impacts of IL-13 neutralization on skin and serum biomarkers following tralokinumab treatment in adults with moderate-to-severe AD.

Methods: Skin biopsies and blood samples were evaluated from a subset of patients enrolled in the Phase 3 ECZTRA 1 (NCT03131648) and the long-term extension ECZTEND (NCT03587805) trials.

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  • Topical psoriasis treatments often have limited efficacy and safety, prompting a study on roflumilast cream's long-term effects.
  • In a phase 2 trial with 332 adult psoriasis patients, those who applied roflumilast cream daily for 52 weeks showed a high completion rate and only minimal adverse events.
  • Results indicated that the cream was effective, with about 44.8% of patients achieving significant improvement at Week 52, supporting its use for chronic treatment, including sensitive areas like the face.
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  • Prurigo nodularis is a chronic skin disease causing intense itching, and nemolizumab, an IL-31 receptor antagonist, targets its underlying mechanisms.* -
  • In a phase 3 trial, 274 adults with moderate-to-severe prurigo nodularis were given nemolizumab or a placebo for 16 weeks, showing significant improvements in itch and overall skin condition.* -
  • Results revealed that 56.3% of the nemolizumab group reported reduced itching compared to 20.9% in the placebo group, with similar trends observed for other secondary outcomes, demonstrating its efficacy (P<0.001).*
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Efficacy and safety of FMX103 1.5% for papulopustular rosacea were previously demonstrated in two 12-week, Phase 3 studies. We sought to evaluate the safety and efficacy of FMX103 1.

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Background: Efficacious topical medications for rosacea are needed. FMX103 1.5% is a novel topical minocycline foam that may have therapeutic benefits in treating rosacea while minimizing systemic adverse effects due to its topical route of delivery.

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The purpose of this study was to evaluate the safety and efficacy of ingenol disoxate gel using a once-daily, three-day field treatment regimen in patients with actinic keratosis. This was a Phase II, multicenter, open-label trial (clinicaltrials.gov: NCT02305888).

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To report cosmetic outcomes and patient satisfaction with ingenol disoxate (LEO 43204) used in a once-daily, three-day field treatment regimen in patients with actinic keratosis. This was a phase II, multicenter, open-label trial (ClinicalTrials.gov: NCT02305888) involving 20 trial sites in the United States.

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Objective: This randomized, double-blind, placebo-controlled, Phase 2 study compared efficacy, tolerability, and safety of SB204 once or twice daily to vehicle in the treatment of acne vulgaris.

Methods: Eligible subjects were to be between 12 and 40 years old, have facial acne vulgaris with 25 to 70 non-inflammatory lesions, 20 to 40 inflammatory lesions, no more than 2 nodules, and a baseline Investigator's Global Assessment (IGA) score of moderate or severe. The co-primary efficacy endpoints were the absolute change in inflammatory and non-inflammatory lesion counts and IGA success rate (baseline to week 12).

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Erythematotelangiectatic rosacea shares facial flushing features with those seen after niacin. This study was performed to test the hypothesis whether prostaglandin D2 (PGD2) receptor subtype 1 antagonist (laropiprant) will improve the symptoms of rosacea. The purpose of this study was to evaluate the effect of laropiprant 100 mg administered once daily for 4 weeks on the signs and symptoms of erythematotelangiectatic rosacea.

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Paradoxical seizure exacerbation by anti-epileptic medication is a well-known clinical phenomenon in epilepsy, but the cellular mechanisms remain unclear. One possibility is enhanced network disinhibition by unintended suppression of inhibitory interneurons. We investigated this hypothesis in the stargazer mouse model of absence epilepsy, which bears a mutation in stargazin, an AMPA receptor trafficking protein.

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Increasing data suggest that glutamate might act as a cell-signaling molecule in non-neuronal tissues such as the skin. Here we demonstrate the presence of functional N-methyl-D-aspartate (NMDA)-type glutamate receptors in human keratinocytes. NMDA receptor expression strongly reflects the degree of cell-to-cell contact.

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Background: Radiofrequency application through a proprietary device has recently been used for facial tissue tightening. Uniform volumetric heating of the dermis is created by passage of electrical current, while protection of the epidermis is maintained by concurrent cryogen cooling.

Objective: To objectively quantify the effectiveness of volumetric radiofrequency application on the face, we treated 10 patients on the left side of the face with radiofrequency and evaluated the changes in brow position, superior palpebral crease, angle of the eyebrow, and jowl surface area.

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Blue rubber bleb nevus syndrome (BRBNS) is a rare disorder characterized by discrete venous malformations of varying size and appearance that are present on the skin and within the gastrointestinal tract. The characteristic cutaneous lesions consist of deep-blue, soft, rubbery blebs, which are easily compressible. A serious complication is gastrointestinal bleeding.

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Background: Hypopigmentation is an adverse outcome associated with carbon-dioxide (CO(2)) laser resurfacing. A 90-microsecond pulse produces a more favorable postoperative course of healing, erythema, and pain compared with a 900-microsecond dwell time. The rate of hypopigmentation after 90-microsecond pulsed CO(2) resurfacing may also be reduced.

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Background And Objectives: The use of the long-pulsed 755-nm alexandrite laser has been an effective tool in hair removal. A dynamic cooling device (DCD) is commonly used with this laser in order to minimize epidermal damage. No studies have examined how fine changes in DCD duration may affect comfort and epidermal damage during laser hair removal.

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Calciphylaxis is an ill-defined syndrome that is commonly associated with chronic renal failure. Its heterogeneous clinical features include painful livedo reticularis-like purpuric patches and plaques, vesicles, irregularly shaped ulcers, and black eschars. Despite demonstration of extensive vascular arteriolar calcification in this syndrome, its exact pathogenesis remains unknown.

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Erythema ab igne is caused by chronic heat exposure and presents with reticulated pigmentation. Although various causes of erythema ab igne have been reported, in the United States, its incidence has been declining due to the advent of central heating. When seen, it is usually in the setting of local applications of a heated source, such as a hot water bottle, to treat muscular or arthritic pains.

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Fibroblast cultures derived from neonatal foreskin explants have been an important model for understanding the basic mechanisms of fibroblast function and activity. Neonatal foreskin has been routinely used for establishing such fibroblast cultures in vitro. In general, tissue explants and fibroblast cultures are established from freshly harvested neonatal foreskin tissue.

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