Publications by authors named "Brian S Kim"

Background: International Dermatology Outcome Measures (IDEOM) is a non-profit organization whose mission is to improve the availability of evidence-based, consensus-driven outcome measures for dermatological diseases. IDEOM facilitates collaboration between stakeholders from various backgrounds, including researchers, patients, physicians, and industry representatives, to develop objective benchmark metrics that enable better treatment and management of dermatologic conditions.

Summary: The 2023 IDEOM Annual Meeting was held June 23-24, 2023.

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Introduction: This study evaluated patient-reported outcome measures and reinjury rates in higher-risk adolescents and young adults aged 14-25 years old following Anterior Cruciate Ligament reconstruction using autograft with suture tape augmentation (SA ACLR).

Materials And Methods: We performed a retrospective case series of patients aged 14-25 who underwent SA ACLR by a single surgeon between 2016 and 2020. After a minimum of 2 years of follow-up, data was collected on reinjury and patient reported outcome measures, including Knee Injury and Osteoarthritis Outcome Score (KOOS), Marx Activity Rating Scale (MARS), Single Assessment Numeric Evaluation (SANE), and Visual Analog Pain Scale (VAPS).

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Historically, the nervous and immune systems were studied as separate entities. The nervous system relays signals between the body and the brain by processing sensory inputs and executing motor outputs, whereas the immune system provides protection against injury and infection through inflammation. However, recent developments have demonstrated that these systems mount tightly integrated responses.

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Epithelial barriers such as the skin, lung, and gut, in addition to having unique physiologic functions, are designed to preserve tissue homeostasis upon challenge with a variety of allergens, irritants, or pathogens. Both the innate and adaptive immune systems play a critical role in responding to epithelial cues triggered by environmental stimuli. However, the mechanisms by which organs sense and coordinate complex epithelial, stromal, and immune responses have remained a mystery.

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Mouse Models of Itch.

J Invest Dermatol

December 2024

Murine models are vital preclinical and biological tools for studying itch. In this paper, we explore how these models have enhanced our understanding of the mechanisms underlying itch through both acute and chronic itch models. We provide detailed protocols and recommend experimental setups for specific models to guide researchers in conducting itch research.

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Article Synopsis
  • - Notalgia paresthetica (NP) is a sensory neuropathy mainly affecting the mid-to-upper back, causing chronic itching, skin pain, and other abnormal sensations, but it often goes unrecognized and under-diagnosed.
  • - An online survey of 650 dermatologists across 8 countries revealed that itching (pruritus) is the most prevalent symptom in their NP patients, followed by skin sensitivity and hyperpigmentation; pruritus is also considered the most burdensome symptom.
  • - Common treatments for NP include non-medicated skin care, topical corticosteroids, oral antihistamines, and gabapentin or pregabalin, but physicians generally express low satisfaction with these options, primarily due to a
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In defying conventional views that dismissed itch as trivial, I persisted in studying basophils and ILC2s in human skin and atopic dermatitis. My research on JAK inhibitors for itch ultimately led to FDA-approved drugs. This is my story of disregarding categories and definitions-a story about an unconventional path in science that emphasizes innovation over conformity.

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  • Prurigo nodularis (PN) is a chronic skin condition marked by extremely itchy nodules that can worsen due to scratching, creating a cycle of discomfort and skin damage.
  • Recent research shows that PN involves an imbalance in the neuroimmune system, with factors like sensory neurons and inflammatory cells playing a key role in its development.
  • The review suggests that understanding the dysregulated type 2 immune responses may lead to new treatments that can better manage the symptoms of PN.
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  • - Notalgia paresthetica (NP) is a specific type of neuropathic itch that primarily affects the mid back, but the patient experience and details about the condition are not well understood.
  • - A global online survey called NIRVE focused on the symptom burden of neuropathic itch, revealing that participants with NP typically visited about two healthcare providers before getting correctly diagnosed.
  • - The most frequently reported symptoms among NP patients include itch, numbness, and painful or raw skin, with itch being the most intense symptom experienced.
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  • - The Phase 3 PRIME/PRIME2 trials showed that dupilumab is effective and safe for adults with moderate-to-severe prurigo nodularis, as confirmed by pooled data from both trials.
  • - In a 24-week study, patients receiving dupilumab had significantly better improvements in itch and skin clarity compared to those on a placebo, with notable results seen as early as 12 weeks.
  • - The analysis concluded that dupilumab's benefits were consistent across different demographic groups, though the data collection was limited to the 24-week treatment duration.
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Purpose: The presence of wheals or hives has been viewed as a hallmark symptom of urticaria, a highly debilitating disease. This study explores our experience with omalizumab in patients with apparent mast-cell mediated pruritus in the absence of hives.

Materials And Methods: This is a retrospective case series examining all patients with mast cell-mediated pruritus in the absence of hives from April 2022 to May 2024 at a tertiary referral clinic at Icahn School of Medicine at Mount Sinai in New York.

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  • Ritlecitinib, a drug being tested for alopecia areata, caused reversible axonal swelling and auditory potential changes in dogs at doses higher than what's approved for humans.
  • * A phase 2a study evaluated the effects of ritlecitinib on auditory and nerve fiber changes in 71 patients, comparing results with a placebo group over 9 months.
  • * Findings showed no significant differences in auditory or nerve fiber measures between the treatment and placebo groups, suggesting that dog toxicity findings may not apply to human patients.
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Germline gain-of-function (GOF) variants in STAT3 cause an inborn error of immunity associated with early-onset poly-autoimmunity and immune dysregulation. To study tissue-specific immune dysregulation, we used a mouse model carrying a missense variant (p.G421R) that causes human disease.

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Antigen specificity is the central trait distinguishing adaptive from innate immune function. Assembly of antigen-specific T cell and B cell receptors occurs through V(D)J recombination mediated by the Recombinase Activating Gene endonucleases RAG1 and RAG2 (collectively called RAG). In the absence of RAG, mature T and B cells do not develop and thus RAG is critically associated with adaptive immune function.

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The extensor carpi radialis brevis (ECRB) is well known to be implicated in lateral epicondylitis as a result of inflammation and degeneration. However, tears of the ECRB should be considered a separate pathology and are poorly reported in the literature. Surgical techniques for this pathology also have been poorly described.

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  • B-type natriuretic peptide (BNP) is a neuropeptide associated with various types of itch, showing elevated levels in patients undergoing hemodialysis.
  • A study evaluated BNP and N-terminal pro-BNP levels in patients with chronic itch and found a correlation between these levels and itch severity, particularly in those with chronic pruritus of unknown origin.
  • Experiments in mice confirmed that increased BNP levels lead to significant scratching, supporting the idea that BNP could play a central role in itch signaling in the spinal cord.
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Medial opening-wedge high tibial osteotomies are commonly performed to treat varus deformity and medial compartment osteoarthritis of the knee in active younger individuals. A common complication of this procedure is the development of a lateral hinge fracture. This can occur both acutely and with a delayed presentation.

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Article Synopsis
  • Scientists found that a special protein called JAK1 can cause allergies and skin problems in mice when changed in a certain way.
  • They discovered that JAK1 also helps control inflammation in the lungs, showing it works differently in different parts of the body.
  • This research might help create better medicines that target specific problems related to JAK1.
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Background: Skin pain in atopic dermatitis (AD) increases with disease severity and is associated with substantial quality of life (QoL) burden.

Objectives: The aim of the study was to evaluate abrocitinib efficacy on skin pain and QoL in adults and adolescents with moderate-to-severe AD.

Methods: This post hoc analysis included data with abrocitinib administered as monotherapy (pooled phase 2b [NCT02780167] and phase 3 JADE MONO-1 [NCT03349060] and JADE MONO-2 [NCT03575871]) or in combination with topical therapy (phase 3 JADE COMPARE [NCT03720470] and JADE TEEN [NCT03796676]).

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Myeloid cells are known to suppress antitumour immunity. However, the molecular drivers of immunosuppressive myeloid cell states are not well defined. Here we used single-cell RNA sequencing of human and mouse non-small cell lung cancer (NSCLC) lesions, and found that in both species the type 2 cytokine interleukin-4 (IL-4) was predicted to be the primary driver of the tumour-infiltrating monocyte-derived macrophage phenotype.

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Purpose: To investigate orthopaedic patient compliance with patient-reported outcome measures (PROMs) and identify factors that improve response rates.

Methods: Our search strategy comprised a combination of key words and database-specific subject headings for the concepts of orthopaedic surgical procedures, compliance, and PROMs from several research databases from inception to October 11, 2022. Duplicates were removed.

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Background: Itch is a common symptom that can greatly diminish quality of life. Histamine is a potent endogenous pruritogen, and while antihistamines are often the first-line treatment for itch, in conditions like chronic spontaneous urticaria (CSU), many patients remain symptomatic while receiving maximal doses. Mechanisms that drive resistance to antihistamines are poorly defined.

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The long head of the biceps (LHB) tendon is a common cause of shoulder pain. Biceps tenodesis is commonly used to address biceps and superior labrum pathology, reducing pain and restoring function. There are numerous techniques for biceps tenodesis, and it is unclear as to which single technique and approach provides significantly superior outcomes.

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