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https://www.readbyqxmd.com/read/28098880/the-role-of-gap-junctions-in-inflammatory-and-neoplastic-disorders-review
#1
Pui Wong, Victoria Laxton, Saurabh Srivastava, Yin Wah Fiona Chan, Gary Tse
Gap junctions are intercellular channels made of connexin proteins, mediating both electrical and biochemical signals between cells. The ability of gap junction proteins to regulate immune responses, cell proliferation, migration, apoptosis and carcinogenesis makes them attractive therapeutic targets for treating inflammatory and neoplastic disorders in different organ systems. Alterations in gap junction profile and expression levels are observed in hyperproliferative skin disorders, lymphatic vessel diseases, inflammatory lung diseases, liver injury and neoplastic disorders...
January 17, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28098856/anti%C3%A2-wrinkle-effect-of-fermented-black-ginseng-on-human-fibroblasts
#2
Quynh Lien Pham, Hyun-Jun Jang, Kyu-Bong Kim
Fermented black ginseng (FBG) is processed by the repeated steaming and drying of fresh ginseng followed by fermentation with Saccharomyces cerevisiae. It is known to possess anti‑oxidative effects. Skin wrinkle formation is associated with oxidative stress and inflammatory reactions. The aim of this study was to determine whether FBG possesses anti‑wrinkle activity using human fibroblasts (HS68). According to the Korea Ministry of Food and Drug Safety (MFDS) guidelines for the evaluation of the efficacy of functional anti‑wrinkle cosmetics, we attempted to elucidate the effects of FBG on type I procollagen, matrix metalloproteinase (MMP)‑1, MMP‑2, MMP‑9 and tissue inhibitor of metalloproteinase‑2 (TIMP‑2)...
January 16, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28096657/vitamin-d-deficiency-and-the-risk-of-tuberculosis-a-meta-analysis
#3
Shao-Jun Huang, Xian-Hua Wang, Zhi-Dong Liu, Wen-Li Cao, Yi Han, Ai-Guo Ma, Shao-Fa Xu
BACKGROUND AND AIM: To conduct meta-analyses of all published studies on various aspects of association between vitamin D and tuberculosis (TB). METHODS: PubMed and Web of Knowledge were searched for all properly controlled studies on vitamin D and TB. Pooled odds ratio, mean difference or standardized mean difference, and its corresponding 95% confidence interval were calculated with the Cochrane Review Manager 5.3. RESULTS: A significantly lower vitamin D level was found in TB patients vs controls; vitamin D deficiency (VDD) was associated with an increased risk of TB, although such an association was lacking in the African population and in the human immunodeficiency virus-infected African population...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/28096316/bay-11-7082-inhibits-the-nf-kb-and-nlrp3-inflammasome-pathways-and-protects-against-imq-induced-psoriasis
#4
Natasha Irrera, Mario Vaccaro, Alessandra Bitto, Giovanni Pallio, Gabriele Pizzino, Maria Lentini, Vincenzo Arcoraci, Letteria Minutoli, Michele Scuruchi, Giuseppina Cutroneo, Giuseppe Pio Anastasi, Roberta Ettari, Francesco Squadrito, Domenica Altavilla
BAY 11-7082 antagonizes I-κB kinase-β preventing nuclear translocation of NF-κB; it also inhibits NLRP3 inflammasome activation.NF-κB is involved in psoriasis, while the role of NLRP3 is controversial. We investigated BAY 11-7082 effects in an experimental model of psoriasis-like dermatitis. Psoriasis-like lesions were induced by a topical application of imiquimod cream (IMQ; 62.5 mg/day) on the shaved back skin of C57BL/6 and NLRP3 knock-out mice for 7 consecutive days. Sham psoriasis animals were challenged with vaseline cream...
January 17, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28096092/initiation-of-acute-graft-versus-host-disease-by-angiogenesis
#5
Katarina Riesner, Yu Shi, Angela Jacobi, Martin Kraeter, Martina Kalupa, Aleixandria McGearey, Sarah Mertlitz, Steffen Cordes, Jens-Florian Schrezenmeier, Jörg Mengwasser, Sabine Westphal, Daniel Perez-Hernandez, Clemens Schmitt, Gunnar Dittmar, Jochen Guck, Olaf Penack
The inhibition of inflammation-associated angiogenesis ameliorates inflammatory diseases by reducing the recruitment of tissue infiltrating leukocytes. However, it is not known if angiogenesis has an active role during the initiation of inflammation or if it is merely a secondary effect occurring in response to stimuli by tissue infiltrating leukocytes. Here we show that angiogenesis precedes leukocyte infiltration in experimental models of inflammatory bowel disease and acute graft-versus-host disease (GVHD)...
January 17, 2017: Blood
https://www.readbyqxmd.com/read/28095714/disease-related-and-drug-induced-skin-manifestations-in-inflammatory-bowel-disease
#6
Pieter Hindryckx, Gregor Novak, Antonio Costanzo, Silvio Danese
Skin manifestations are common in patients with inflammatory bowel diseases (IBD) and can be part of a concomitant illness with a shared genetic background, an extra-intestinal manifestation of the disease, or a drug side-effect. Areas covered: We provide a practical overview of the epidemiology, pathogenesis, diagnosis, therapeutic approach and prognosis of the most frequent disease-related and drug-induced cutaneous manifestations in IBD, illustrated by cases encountered in our clinical practice. Among the most frequently encountered IBD-related lesions are erythema nodosum, pyoderma gangrenosum and Sweet's syndrome...
January 17, 2017: Expert Review of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28095548/integrated-cooling-vacuum-assisted-non-fractional-1540-nm-erbium-glass-laser-is-effective-in-treating-acne-scars
#7
Yael Politi, Assi Levi, Moshe Lapidoth
INTRODUCTION: Acne scars are a common result of in ammatory acne, affecting many patients worldwide. Among which, atrophic scars are the most prevalent form, presenting as dermal depressions caused by inflammatory degeneration of dermal collagen. Mid-infrared laser skin interaction is characterized by its modest absorption in water and nite penetration to the mid-dermis. Since collagen is a desirable laser target, 1540-nm wavelength is amenable for collagen remodeling within the depressed area of atrophic scars...
November 1, 2016: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28095546/comparison-of-the-cutaneous-thermal-signatures-over-twenty-four-hours-with-a-picosecond-alexandrite-laser-using-a-flat-or-fractional-optic
#8
Emil A Tanghetti, Danielle M Tartar
INTRODUCTION: This study explored immediate heat signatures with different passing techniques and the delayed thermal data points with the picosecond Alexandrite laser with the 6mm at and fractional optic during and after treatment. We sought to clarify the im- mediate effects of heating and understand the thermal and short term clinical difference when using these optics. RESULTS: There were no immediate differences or a signi cant temperature rise with different passing techniques using the at or the fractional optic...
November 1, 2016: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28095537/spotlight-on-the-use-of-nitric-oxide-in-dermatology-what-is-it-what-does-it-do-can-it-become-an-important-addition-to-the-therapeutic-armamentarium-for-skin-disease
#9
James Q Del Rosso, Leon H Kircik
Nitric oxide (NO) is a diatomic gas that is synthesized within and released by multiple host cell types functioning to provide a variety of physiologic and homeostatic effects. Nitric oxide exhibits a variety of effects that relate significantly with outcomes that can provide therapeutic benefit if properly formulated and released. These include anti-inflammatory, immunomodulatory, antimicrobial, vasodilatory properties, and effects that are beneficial to wound healing. Lack of antibiotic resistance appears to be one major advantage of topically delivered NO...
January 1, 2017: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28095528/the-role-of-cutaneous-microbiota-harmony-in-maintaining-a-functional-skin-barrier
#10
Hilary E Baldwin, Neal D Bhatia, Adam Friedman, Richard Martin Eng, Sophie Seite
The skin is constantly exposed to various endogenous and exogenous factors that may impact its barrier function at the physical, mechanical, immunological, and microbial levels. These factors have the potential to initiate or exacerbate a variety of inflammatory skin conditions, especially those associated with barrier dysfunction. The barrier function of the skin depends upon a symbiotic relationship between resident microbial communities and host tissue. This symbiosis results from complex signals involved in both the innate and adaptive immune responses...
January 1, 2017: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28095445/cytosolic-rna-dna-duplexes-generated-by-endogenous-reverse-transcriptase-activity-as-autonomous-inducers-of-skin-inflammation-in-psoriasis
#11
Jean-Pierre Molès, Anthony Griez, Jean-Jacques Guilhou, Céline Girard, Nicolas Nagot, Philippe Van de Perre, Pierre Dujols
Psoriasis is a chronic skin disease of unknown ætiology. Recent studies suggested that a large amount of cytosolic DNA (cyDNA) in keratinocytes is breaking keratinocytes DNA tolerance and promotes self-sustained inflammation in the psoriatic lesion. We investigated the origin of this cyDNA. We show that, amongst all the possible DNA structures, the cyDNA could be present as RNA:DNA duplexes in keratinocytes. We further show that endogenous reverse transcriptase activities generate such duplexes and consequently activate the production of Th1-inflammatory cytokines...
2017: PloS One
https://www.readbyqxmd.com/read/28094869/loss-of-fas-fasl-signaling-does-not-reduce-apoptosis-in-sharpin-null-mice
#12
Christopher S Potter, Kathleen A Silva, Victoria E Kennedy, Timothy M Stearns, Harm HogenEsch, John P Sundberg
Mice with mutations in SHANK-associated RH domain interactor (Sharpin) develop a hypereosinophilic auto-inflammatory disease known as chronic proliferative dermatitis. Affected mice have increased apoptosis in the keratinocytes of the skin, esophagus, and forestomach driven by extrinsic TNF receptor mediated apoptotic signaling pathways. FAS receptor signaling is an extrinsic apoptotic signaling mechanism frequently involved in inflammatory skin diseases. Compound mutations in Sharpin and Fas or Fasl were created to determine if these death domain proteins influenced the cutaneous phenotype in Sharpin null mice...
January 17, 2017: Experimental Dermatology
https://www.readbyqxmd.com/read/28093318/massive-vulvar-linear-verrucous-epidermal-nevus-presenting-at-menarche
#13
Jaclyn Morrison, Adrienne Bonham
BACKGROUND: Epidermal nevi are benign hamartomatous growths of the skin that present at birth and develop in early childhood often linearly along the "lines of Blaschko". Verrucous linear epidermal nevi are the most common epidermal nevi and often are located on the trunk or extremities. There is minimal evidence regarding vulvar involvement and subsequent management of the associated cosmetic deformity in this anatomic location. CASE: An 11 year-old menarchal female who underwent full-thickness dermal excision of a 9...
January 13, 2017: Journal of Pediatric and Adolescent Gynecology
https://www.readbyqxmd.com/read/28093232/phospholipase-c%C3%AE%C2%B5-deficiency-delays-the-early-stage-of-cutaneous-wound-healing-and-attenuates-scar-formation-in-mice
#14
Xiaolong Zhu, Yue Sun, Xin Mu, Pan Guo, Fei Gao, Jing Zhang, Yunjuan Zhu, Xianzhi Zhang, Lingling Chen, Zhiwei Ning, Yunfeng Bai, Jiling Ren, Maoqiang Man, Peimei Liu, Lizhi Hu
This study aimed to investigate the role of phospholipase Cε (PLCε) in the skin wound healing process. PLCε, an effect factor of Ras/Rap small G protein, plays a crucial role in skin inflammation by regulating inflammatory cytokines. Inflammatory responses are closely associated with wound healing. Full-thickness skin wounds were made in the PLCε knockout (KO) and wild-type (WT) mice, and the healing process was analyzed. The macroscopic wound closure rate declined in the PLCε KO mice on days 3, 4, and 5 after wounding, following the decreased expression of interleukin (IL)-6, chemokine (C-X-C motif) ligand (Cxcl)-1, Cxcl-2, and chemokine (C-C motif) ligand (Ccl) 20...
January 13, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28092864/augmentation-of-humoral-and-cellular-immunity-in-response-to-tetanus-and-diphtheria-toxoids-by-supercritical-carbon-dioxide-extracts-of-hippophae-rhamnoides-l-leaves
#15
Bindhya Jayashankar, Divya Singh, Himanshi Tanwar, K P Mishra, Swetha Murthy, Sudipta Chanda, Jigni Mishra, R Tulswani, K Misra, S B Singh, Lilly Ganju
Hippophae rhamnoides L. commonly known as Seabuckthorn (SBT), a wild shrub of family Elaegnacea, has extensively used for treating various ailments like skin diseases, jaundice, asthma, lung troubles. SBT leaves have been reported to possess several pharmacological properties including immunomodulatory, antioxidant, anti-inflammatory, antimicrobial and tissue regeneration etc. The present study was undertaken to evaluate the adjuvant property of supercritical carbon dioxide extracts (SCEs 300ET and 350ET) of SBT leaves in balb/c mice immunized with Tetanus and Diphtheria toxoids...
January 13, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28092372/direct-control-of-regulatory-t-cells-by-keratinocytes
#16
Mariko Kashiwagi, Junichi Hosoi, Jen-Feng Lai, Janice Brissette, Steven F Ziegler, Bruce A Morgan, Katia Georgopoulos
Environmental challenges to epithelial cells trigger gene expression changes that elicit context-appropriate immune responses. We found that the chromatin remodeler Mi-2β controls epidermal homeostasis by regulating the genes involved in keratinocyte and immune-cell activation to maintain an inactive state. Mi-2β depletion resulted in rapid deployment of both a pro-inflammatory and an immunosuppressive response in the skin. A key target of Mi-2β in keratinocytes is the pro-inflammatory cytokine thymic stromal lymphopoietin (TSLP)...
January 16, 2017: Nature Immunology
https://www.readbyqxmd.com/read/28091390/demodex-spp-infestation-associated-with-treatment-resistant-chalazia-and-folliculitis
#17
Ulviye Güvendi Akçınar, Emine Ünal, Metin Akpınar
Demodecidosis is an ectoparasitosis of pilosebaceous unit caused by demodex mites. The disease may be a primary skin disease or a secondary disease to inflammatory dermatoses such as folliculitis and rosacea. Demodex spp. blepharitis is an infectious ocular disease that is common but always neglected. These mites contain lipase enzymes that help carry bacteria on the surface. The infestation of Demodex spp. has increasingly become a public health concern. A 29-year-old male patient was admitted to our dermatology clinic with a complaint of papules and pustules on his face, which started 4 years ago...
December 2016: Türkiye Parazitolojii Dergisi
https://www.readbyqxmd.com/read/28090468/clinical-features-and-extraintestinal-manifestations-of-crohn-disease-in-children
#18
Young Ah Lee, Peter Chun, Eun Ha Hwang, Sang Wook Mun, Yeoun Joo Lee, Jae Hong Park
PURPOSE: The aim of this study was to investigate the clinical features and extraintestinal manifestations (EIMs) of Crohn disease (CD) in Korean pediatric patients. METHODS: The medical records of 73 children diagnosed with CD were retrospectively reviewed. Data regarding baseline demographic and clinical characteristics, including CD phenotype at diagnosis based on the Montreal classification, and clinical features and course of EIMs were investigated. RESULTS: Fifty-two (71...
December 2016: Pediatric Gastroenterology, Hepatology & Nutrition
https://www.readbyqxmd.com/read/28089741/inflammatory-myopathy-in-a-patient-with-aicardi-gouti%C3%A3-res-syndrome
#19
Birutė Tumienė, Norine Voisin, Eglė Preikšaitienė, Donatas Petroška, Jurgita Grikinienė, Rūta Samaitienė, Algirdas Utkus, Alexandre Reymond, Vaidutis Kučinskas
Aicardi-Goutières syndrome (AGS) is an inflammatory disorder belonging to the recently characterized group of type I interferonopathies. The most consistently affected tissues in AGS are the central nervous system and skin, but various organ systems and tissues have been reported to be affected, pointing to the systemic nature of the disease. Here we describe a patient with AGS due to a homozygous p.Arg114His mutation in the TREX1 gene. The histologically proven inflammatory myopathy in our patient expands the range of clinical features of AGS...
January 9, 2017: European Journal of Medical Genetics
https://www.readbyqxmd.com/read/28089682/prevalence-and-risk-of-inflammatory-bowel-disease-in-patients-with-hidradenitis-suppurativa
#20
Alexander Egeberg, Gregor B E Jemec, Alexa B Kimball, Hervé Bachelez, Gunnar H Gislason, Jacob P Thyssen, Lotus Mallbris
Hidradenitis suppurativa (HS) is a chronic inflammatory skin disease. In small studies, inflammatory bowel disease (IBD) has been associated with increased prevalence of HS, but data on the concurrence of IBD in patients with HS is limited. We therefore investigated the prevalence and risk of IBD in patients with HS compared with the general population. The study linked all Danish individuals ≥18 years in nationwide registers. Adjusted odds ratios (OR) and adjusted hazard ratios (HRs) were estimated by logistic regression and Cox regression, respectively...
January 12, 2017: Journal of Investigative Dermatology
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