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https://www.readbyqxmd.com/read/29782303/clindamycin-induced-maculopapular-exanthema-with-preferential-involvement-of-striae-distensae-a-koebner-phenomenon
#1
Benigno Monteagudo, Miguel Cabanillas, Pilar Iriarte, Aquilina Ramírez-Santos, Elvira León-Muinos, Daniel González-Vilas, Óscar Suárez-Amor
Clindamycin is a lincomycin-derived antibiotic useful for the treatment of anaerobic and Gram-positive aerobic bacterial infections. Cutaneous adverse reactions are usually maculopapular exanthemas, although hypersensitivity syndrome, acute generalized exanthematous pustulosis, and Stevens-Johnson syndrome have also been reported (1). We report the case of a patient with a maculopapular rash triggered by clindamycin who developed cutaneous lesions on striae distensae (SD). A 47-year-old woman was referred to our clinic for pruritic cutaneous lesions which had started 6 days earlier...
April 2018: Acta Dermatovenerologica Croatica: ADC
https://www.readbyqxmd.com/read/29779480/production-and-characterization-of-nanoparticle-based-hyaluronate-gel-containing-retinyl-palmitate-for-wound-healing
#2
Elisabetta Esposito, Alessandra Pecorelli, Maddalena Sguizzato, Markus Drechsler, Paolo Mariani, Federica Carducci, Franco Cervellati, Rita Cortesi, Giuseppe Valacchi
BACKGROUND: Wound healing is a biological process that can get in a state of pathologic inflammation, requiring the use of specific medications able to promote proper tissue repair. OBJECTIVE: The study describes the production and characterization of nanoparticle based gel for wound healing treatment designed to deliver hyaluronic acid and retinyl palmitate onto the skin. METHOD: Tristearin solid lipid nanoparticles and nanostructured lipid carriers based on a tristearin and caprylic/capric triglyceride mixture were produced and characterized...
May 18, 2018: Current Drug Delivery
https://www.readbyqxmd.com/read/29773713/a-thumbwheel-mechanism-for-apoa1-activation-of-lcat-activity-in-hdl
#3
Allison L Cooke, Jamie Morris, John T Melchior, Scott E Street, W Gray Jerome, Rong Huang, Andrew B Herr, Loren E Smith, Jere P Segrest, Alan T Remaley, Amy S Shah, Thomas B Thompson, W Sean Davidson
APOA1 is the most abundant protein in HDL. It modulates interactions that affect HDLs cardioprotective functions, in part via its activation of the enzyme LCAT. On nascent, discoidal HDL, APOA1 comprises 10 alpha-helical repeats arranged in an anti-parallel, stacked-ring structure that encapsulates a lipid bilayer. Previous chemical cross-linking studies suggested that these APOA1 rings can adopt at least two different orientations, or registries, with respect to each other; however, the functional impact of these structural changes is unknown...
May 17, 2018: Journal of Lipid Research
https://www.readbyqxmd.com/read/29770844/effect-of-arthroscopic-resection-for-discoid-lateral-meniscus-on-the-axial-alignment-of-the-lower-limb
#4
Puyan Zhang, Qichun Zhao, Xifu Shang, Yingming Wang
PURPOSE: This study was designed to investigate the changes in the lower limb axial alignment and knee joint function after arthroscopic resection of discoid lateral menisci. METHODS: Pre-operative and post-operative full-length weight-bearing radiographs of the lower limb were obtained from 60 patients with discoid lateral menisci from August 2015 to August 2016. Twenty-four patients were treated with meniscectomy and 36 cases were treated with meniscoplasty. The axial alignment of the lower limb was measured, and changes in the lower limb axial alignment before and after surgery were analyzed...
May 16, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29754495/evaluation-of-anterior-intermeniscal-ligament-in-discoid-lateral-meniscus-cases-and-presenting-the-accompanying-meniscal-pathologies-with-mri
#5
Ali Koç, Turgut Tursem Tokmak, Özgür Karabıyık, Gamze Türk
Background Although several studies were conducted to put forth the biomechanical function of anterior intermeniscal ligament (AIML) on the stability of meniscal structures, there are few data on the etiology of the early degeneration of discoid type compared to the normal shaped ones. Purpose To determine the AIML subtypes and accompanying meniscal pathologies in discoid lateral menisci (DLM) on knee MRI exams. Material and Methods Knee MRI exams of 171 individuals with DLM were reviewed. DLMs and AIMLs were typed according to Watanabe's classification and Nelson-Laprade classification, respectively...
January 1, 2018: Acta Radiologica
https://www.readbyqxmd.com/read/29732668/3-4-dihydroxybenzaldehyde-lowers-ros-generation-and-protects-human-red-blood-cells-from-arsenic-iii-induced-oxidative-damage
#6
Nikhil Maheshwari, Fahim Halim Khan, Riaz Mahmood
Arsenic (As) is a potent environmental toxicant and chronic exposure to it results in various malignancies in humans. Oxidative stress has been implicated in the etiopathogenesis of As-induced toxicity. This investigated the protective effect of plant antioxidant 3,4-dihydroxybenzaldehyde (DHB) on sodium meta-arsenite (SA), an As-(III) compound, induced oxidative damage in human red blood cells (RBC). The RBC were first incubated with different concentrations of DHB and then treated with SA at 37°C. Hemolysates were prepared and assayed for various biochemical parameters...
May 6, 2018: Environmental Toxicology
https://www.readbyqxmd.com/read/29729280/molecular-dynamics-simulations-of-lipid-nanodiscs
#7
Mohsen Pourmousa, Richard W Pastor
A lipid nanodisc is a discoidal lipid bilayer stabilized by proteins, peptides, or polymers on its edge. Nanodiscs have two important connections to structural biology. The first is associated with high-density lipoprotein (HDL), a particle with a variety of functionalities including lipid transport. Nascent HDL (nHDL) is a nanodisc stabilized by Apolipoprotein A-I (APOA1). Determining the structure of APOA1 and its mimetic peptides in nanodiscs is crucial to understanding pathologies related to HDL maturation and designing effective therapies...
May 2, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29723351/coexistence-of-chronic-cutaneous-lupus-erythematosus-and-frontal-fibrosing-alopecia
#8
Luciana Lima do Nascimento, Milvia Maria Simões E Silva Enokihara, Mônica Ribeiro de Azevedo Vasconcellos
Lupus erythemathosus is a chronic, relapsing disease with acute, subacute, and chronic lesions. Effluvium telogen occurs in the setting of systemic activity of the disease, and cicatricial alopecia results from discoid lesionsin on the scalp. Other types of alopecia, like alopecia areata, may rarely be found in lupus. Frontal fibrosing alopecia is characterized by frontotemporal hairline recession and eybrow loss. Histophatologically, it cannot be differentiated from lichen planopilaris.It is controversial whether frontal fibrosing alopecia is a subtype of lichen planopilaris...
March 2018: Anais Brasileiros de Dermatologia
https://www.readbyqxmd.com/read/29719023/maximizing-the-clinical-utility-of-descriptive-lymphoid-pathology-reporting
#9
Timothy H McCalmont
Dermatopathology reporting can be both exact and inexact. Exact reporting represents the use of terminology that corresponds to a disease sui generis, such as discoid lupus erythematosus or disseminated superficial porokeratosis. Inexact reporting can vary greatly amongst various practitioners-both in terms of the exact semantics used and also stylistically-and can be used habitually by pathologists as a means to provide cover for diagnostic uncertainty or inexperience. This article explores the use of descriptive (inexact) reporting as it applies to cutaneous lymphoma and its differential diagnosis...
March 2018: Seminars in Cutaneous Medicine and Surgery
https://www.readbyqxmd.com/read/29700807/clinical-and-dermoscopic-spectrum-of-discoid-lupus-erythematosus-novel-observations-from-lips-and-oral-mucosa
#10
Eman Salah
BACKGROUND: Under dermoscopy, discoid lupus erythematosus (DLE) exhibits specific findings. Commonly DLE lesions affect sun-exposed sites, especially the face. However, most of the dermoscopic reports come from scalp DLE. To our knowledge, the dermoscopic pattern for mucosal and labial DLE has not been previously reported. METHODS: This study included 20 patients with histopathologically confirmed DLE lesions. Full history taking was obtained with photo documentation of lesions including the sites involved, the number of lesions per site, and the total number of lesions affecting every patient...
April 27, 2018: International Journal of Dermatology
https://www.readbyqxmd.com/read/29676592/pulsed-dye-laser-as-an-adjuvant-treatment-for-discoid-lupus-erythematosus-a-randomized-controlled-trial
#11
Pawinee Rerknimitr, Nucharin Tekacharin, Ratchathorn Panchaprateep, Jade Wititsuwannakul, Pattarin Tangtanatakul, Nattiya Hirankarn, Pravit Asawanonda
PURPOSE: To evaluate the efficacy and safety of pulsed-dye laser (PDL) for discoid lupus erythematosus (DLE) in a double blinded, randomized, controlled fashion. METHOD: Forty-eight DLE lesions from nine patients were recruited. The lesions on one side of the body were randomized into the treatment group and the other side served as a control. Treatments with the PDL (595 nm) were delivered every four weeks for four consecutive months. The patients were evaluated at weeks 0, 4, 8, 12, 16 and 24...
May 10, 2018: Journal of Dermatological Treatment
https://www.readbyqxmd.com/read/29670279/safety-pharmacokinetics-and-biomarkers-of-f-652-a-recombinant-human-interleukin-22-dimer-in-healthy-subjects
#12
Kai-Yang Tang, Jason Lickliter, Zhi-Hua Huang, Zong-Shu Xian, Han-Yang Chen, Cheng Huang, Chong Xiao, Yu-Peng Wang, Ying Tan, Lin-Feng Xu, Yu-Liang Huang, Xiao-Qiang Yan
F-652 is a recombinant fusion protein consisting of two human interleukin-22 (IL-22) molecules linked to an immunoglobulin constant region (IgG2 -Fc). IL-22 plays critical roles in promoting tissue repair and suppressing bacterial infection. The safety, pharmacokinetics (PK), tolerability, and biomarkers of F-652 were evaluated following a single dose in healthy male volunteers in a randomized, double-blind, placebo-controlled study. Following single-dose subcutaneous (SC) injection of F-652 at 2.0 µg/kg into healthy subjects, six out of six subjects experienced delayed injection site reactions, which presented as erythematous and/or discoid eczematous lesions 10 to 17 days post-dosing...
April 18, 2018: Cellular & Molecular Immunology
https://www.readbyqxmd.com/read/29670018/identification-of-placental-aspartic-proteinase-in-the-eurasian-beaver-castor-fiber-l
#13
Aleksandra Lipka, Grzegorz Panasiewicz, Marta Majewska, Lukasz Paukszto, Martyna Bieniek-Kobuszewska, Bozena Szafranska
Aspartic proteinases (AP) form a multigenic group widely distributed in various organisms and includes pepsins (pep), cathepsins D and E, pregnancy associated glycoproteins (PAGs) as well as plant, fungal, and retroviral proteinases. This study describes the transcript identification and expression localization of the AP within the discoid placenta of the Castor fiber . We identified 1257 bp of the AP cDNA sequence, encoding 391 amino acids (aa) of the polypeptide precursor composed of 16 aa signal peptide, 46 aa pro-piece, and 329 aa of the mature protein...
April 18, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29669547/cutaneous-lupus-erythematosus-in-dogs-a-comprehensive-review
#14
REVIEW
Thierry Olivry, Keith E Linder, Frane Banovic
Since the first description of discoid lupus erythematosus (LE) in two dogs in 1979, the spectrum of canine cutaneous lupus erythematosus (CLE) variants has expanded markedly.In this review, we first propose an adaptation of the Gilliam-Sontheimer classification of CLE for dogs. We then review the signalment, clinical signs, laboratory and histopathology and treatment outcome of the currently recognized variants of canine CLE, which are vesicular CLE, exfoliative CLE, mucocutaneous LE and facial or generalized discoid LE...
April 18, 2018: BMC Veterinary Research
https://www.readbyqxmd.com/read/29669194/racial-disparities-in-the-incidence-of-primary-chronic-cutaneous-lupus-erythematosus-in-the-southeastern-united-states-the-georgia-lupus-registry
#15
Cristina Drenkard, Sareeta Parker, Laura D Aspey, Caroline Gordon, Charles G Helmick, Gaobin Bao, S Sam Lim
OBJECTIVE: Relative to SLE, epidemiologic studies on chronic cutaneous lupus erythematosus (CCLE) are rare and limited to populations without racial diversity. We sought to provide minimum estimates of the incidence of primary CCLE (CCLE in absence of SLE) in a predominantly white and black population in the Southestern United States. METHODS: The Georgia Lupus Registry used multiple sources for case finding, including dermatology and rheumatology practices, multispecialty healthcare facilities, and dermatopathology reports...
April 18, 2018: Arthritis Care & Research
https://www.readbyqxmd.com/read/29668590/a-case-report-of-lupus-erythematosus-tumidus-converted-from-discoid-lupus-erythematosus
#16
Xiaomei Chen, Sheng Wang, Li Li
RATIONALE: Lupus erythematosus tumidus (LET) is an uncommon type of cutaneous lupus erythematosus (CLE) that is rarely associated with other forms of lupus erythematosus. PATIENT CONCERNS: We report a 62-year-old Chinese man presented with recurrent erythematous facial plaques for 1 year and a low-grade fever for 1 week. He had been diagnosed as discoid lupus erythematosus (DLE) 1 year before. Physical examination showed diverse lesions, including prominent swelling of the eyelids, a few erythematous, edematous plaques on the left forehead, face, and neck, and 2 hairless macules...
April 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29650479/core-shell-indium-iii-sulfide-metal-organic-framework-nanocomposite-as-an-adsorbent-for-the-dispersive-solid-phase-extraction-of-nitro-polycyclic-aromatic-hydrocarbons
#17
Yuqian Jia, Yanfang Zhao, Mei Zhao, Zhenhua Wang, Xiangfeng Chen, Minglin Wang
A core-shell discoid shaped indium (III) sulfide@metal-organic framework (MIL-125(Ti)) nanocomposite was synthesized by a solvothermal method and explored as an adsorbent material for dispersive solid-phase extraction (d-SPE). The as-synthesized sorbent was characterized by scanning electron microscopy, energy-dispersive spectroscopy, transmission electron microscopy, powder X-ray diffraction, N2 adsorption-desorption analysis, and Fourier transform infrared spectroscopy. The extraction performance was evaluated by the d-SPE of 16 nitro-polycyclic aromatic hydrocarbons (NPAHs) from water samples...
April 5, 2018: Journal of Chromatography. A
https://www.readbyqxmd.com/read/29644204/verrucous-disseminated-discoid-lupus-erythematosus-with-plantar-and-oral-lesions-in-the-absence-of-systemic-lupus-erthyematosus
#18
Sruthy Manikkath, Raman Balakrishna Venkatta, Sukumaran Pradeep Nair, Gopinathan Nanda Kumar
No abstract text is available yet for this article.
March 2018: Indian Dermatology Online Journal
https://www.readbyqxmd.com/read/29604103/recalcitrant-psoriasiform-dermatosis-of-the-face-is-it-related-to-pityriasis-rubra-pilaris
#19
Emily Yiping Gan, See Ket Ng, Chee Leok Goh, Siong See Joyce Lee
BACKGROUND: There are patients with recalcitrant psoriasiform plaques that do not fit into conventional categories of facial dermatoses. Our study aims to describe the clinico-pathological characteristics of several patients with a unique presentation of persistent psoriasiform facial rashes. METHODS: This retrospective cross-sectional study analyzed clinical and histological data of known cases of recalcitrant psoriasiform dermatosis of the face diagnosed at National Skin Centre, Singapore, over 10 years...
March 31, 2018: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/29599669/x-linked-tlr7-gene-polymorphisms-are-associated-with-diverse-immunological-conditions-but-not-with-discoid-lupus-erythematosus-in-polish-patients
#20
Katarzyna Skonieczna, Anna Woźniacka, Rafał Czajkowski, Jan Styczyński, Anna Krenska, Ewa Robak, Mariusz Gawrych, Sebastian Kaszewski, Mariusz Wysocki, Tomasz Grzybowski
Introduction: Toll-like receptor 7 (TLR7) is an important molecule involved in the development of autoimmunity and the response to different pathogens. Several polymorphisms within the TLR7 gene were previously found to be associated with systemic lupus erythematosus (SLE). However, none of those studies investigated the TLR7 promoter flanking variants rs1634318 and rs1616583. TLR7 gene diversity has not been analyzed with respect to discoid lupus erythematosus (DLE) development, while its role in the human immunological response to fungal infection is not fully known...
February 2018: Postȩpy Dermatologii i Alergologii
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