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https://www.readbyqxmd.com/read/29765966/further-clinical-evidence-for-the-effect-of-igf-1-on-hair-growth-and-alopecia
#1
Ralph M Trüeb
Observations on the Laron syndrome originally offered the opportunity to explore the effect of insulin-like growth factor 1 (IGF-1) deficiency on human hair growth and differentiation. According to its expression in the dermal hair papilla, IGF-1 is likely involved in reciprocal signaling. It has been shown to affect follicular proliferation, tissue remodeling, and the hair growth cycle, as well as follicular differentiation, identifying IGF-1 signaling as an important mitogenic and morphogenetic regulator in hair follicle biology...
April 2018: Skin Appendage Disorders
https://www.readbyqxmd.com/read/29757192/cd155-loss-enhances-tumor-suppression-via-combined-host-and-tumor-intrinsic-mechanisms
#2
Xian-Yang Li, Indrajit Das, Ailin Lepletier, Venkateswar Addala, Tobias Bald, Kimberley Stannard, Deborah Barkauskas, Jing Liu, Amelia Roman Aguilera, Kazuyoshi Takeda, Matthias Braun, Kyohei Nakamura, Sebastien Jacquelin, Steven W Lane, Michele Wl Teng, William C Dougall, Mark J Smyth
Critical immune-suppressive pathways beyond programmed death 1 (PD-1) and programmed death ligand 1 (PD-L1) require greater attention. Nectins and nectin-like molecules might be promising targets for immunotherapy, since they play critical roles in cell proliferation and migration and exert immunomodulatory functions in pathophysiological conditions. Here, we show CD155 expression in both malignant cells and tumor-infiltrating myeloid cells in humans and mice. Cd155-/- mice displayed reduced tumor growth and metastasis via DNAM-1 upregulation and enhanced effector function of CD8+ T and NK cells, respectively...
May 14, 2018: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29752702/daylight-photodynamic-therapy-for-actinic-keratoses
#3
REVIEW
Colin A Morton, Lasse R Braathen
Topical photodynamic therapy (PDT) using daylight is effective in the treatment of actinic keratoses (AKs), offering the potential for treatment of large fields such as full face and balding scalp, but with minimal therapy-associated pain. Comparison with conventional PDT indicates similar efficacy for thin and moderate-thickness AKs, but with significantly less discomfort/pain, driving a patient preference for daylight-mediated PDT (DL-PDT) compared with conventional PDT using high-intensity office/hospital-based light sources...
May 11, 2018: American Journal of Clinical Dermatology
https://www.readbyqxmd.com/read/29743625/acquisition-and-dissemination-of-cephalosporin-resistant-e-coli-in-migratory-birds-sampled-at-an-alaska-landfill-as-inferred-through-genomic-analysis
#4
Christina A Ahlstrom, Jonas Bonnedahl, Hanna Woksepp, Jorge Hernandez, Björn Olsen, Andrew M Ramey
Antimicrobial resistance (AMR) in bacterial pathogens threatens global health, though the spread of AMR bacteria and AMR genes between humans, animals, and the environment is still largely unknown. Here, we investigated the role of wild birds in the epidemiology of AMR Escherichia coli. Using next-generation sequencing, we characterized cephalosporin-resistant E. coli cultured from sympatric gulls and bald eagles inhabiting a landfill habitat in Alaska to identify genetic determinants conferring AMR, explore potential transmission pathways of AMR bacteria and genes at this site, and investigate how their genetic diversity compares to isolates reported in other taxa...
May 9, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29738546/correction-the-cultivable-autochthonous-microbiota-of-the-critically-endangered-northern-bald-ibis-geronticus-eremita
#5
Joachim Spergser, Igor Loncaric, Alexander Tichy, Johannes Fritz, Alexandra Scope
[This corrects the article DOI: 10.1371/journal.pone.0195255.].
2018: PloS One
https://www.readbyqxmd.com/read/29707429/reconciling-the-conservation-of-the-purple-swamphen-porphyrio-porphyrio-and-its-damage-in-mediterranean-rice-fields-through-sustainable-non-lethal-techniques
#6
Rubén Moreno-Opo, Josep Piqué
Resolving human-wildlife conflicts requires the assessment and implementation of appropriate technical measures that minimize negative impacts on socio-economic uses, including agriculture, and ensure the adequate protection of biological diversity. Rice paddies are widely distributed in the western Mediterranean region. Because of their high productivity, they can be a good habitat for waterbirds, including the purple swamphen Porphyrio porphyrio , particularly in areas where natural wetlands have been removed or reduced...
2018: PeerJ
https://www.readbyqxmd.com/read/29698079/the-use-of-lead-isotope-analysis-to-identify-potential-sources-of-lead-toxicosis-in-a-juvenile-bald-eagle-haliaeetus-leucocephalus-with-ventricular-foreign-bodies
#7
Dana Franzen-Klein, David McRuer, Vincent A Slabe, Todd Katzner
A male juvenile bald eagle ( Haliaeetus leucocephalus) was admitted to the Wildlife Center of Virginia with a left humeral fracture a large quantity of anthropogenic debris in the ventriculus, a blood lead level of 0.616 ppm, and clinical signs consistent with chronic lead toxicosis. Because of the poor prognosis for recovery and release, the eagle was euthanatized. Lead isotope analysis was performed to identify potential anthropogenic sources of lead in this bird. The lead isotope ratios in the eagle's femur (0...
March 2018: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/29698076/central-nervous-system-b-cell-lymphoma-in-a-bald-eagle-haliaeetus-leucocephalus
#8
Marike Visser, Heather Walz, Stephanie Shrader, Jey Koehler, Jamie Bellah
An adult bald eagle ( Haliaeetus leucocephalus) presented for nystagmus and an inability to fly. On physical examination, the eagle was open-mouth breathing and tachycardic at 200 beats per minute, had a wrinkled cere and sunken eyes, and was an estimated 10% dehydrated. Additionally, the eagle was extremely weak, with neurologic abnormalities including bilateral proprioceptive deficits, nystagmus, and no pupillary light reflex in the left eye. Despite aggressive treatment, the eagle continued to decline rapidly and subsequently died...
March 2018: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/29687604/functionalized-graphene-quantum-dot-modification-of-yolk-shell-nio-microspheres-for-superior-lithium-storage
#9
Xiaojie Yin, Hengqiao Chen, Chuanwei Zhi, Weiwei Sun, Li-Ping Lv, Yong Wang
Yolk-shell NiO microspheres are modified by two types of functionalized graphene quantum dots (denoted as NiO/GQDs) via a facile solvothermal treatment. The modification of GQDs on the surface of NiO greatly boosts the stability of the NiO/GQD electrode during long-term cycling. Specifically, the NiO with carboxyl-functionalized GQDs (NiO/GQDsCOOH) exhibits better performances than NiO with amino-functionalized GQDs (NiO/GQDsNH2 ). It delivers a capacity of ≈1081 mAh g-1 (NiO contribution: ≈1182 mAh g-1 ) after 250 cycles at 0...
April 24, 2018: Small
https://www.readbyqxmd.com/read/29664510/rapunzel-syndrome-with-double-simultaneous-trichobezoar-in-a-teenager-clinical-case-report
#10
Miguel Bargas Ochoa, María Xacur Hernández, Mariela Espadas Torres, Alexis Quintana Gamboa, Iddar Tappan Lavadores, Nina Méndez Domínguez
Resumen: Introduction: Trichobezoars are an intraluminal accumulation of ingested hair. The Rapunzel syndrome refers to the presence of gastric trichobezoars which extend to the small intestine together with trichotillomania and trichophagia, that occur predominantly in psychiatric patients of pediatric age. OBJECTIVE: To analyze the clinical course and resolution of this syndrome in a case report. Likewise, we provide information about the family environment and psycho-emotional context of the patients and help the reader identify similar circumstances in their clinical practice...
February 2018: Revista Chilena de Pediatría
https://www.readbyqxmd.com/read/29657238/the-first-report-of-terbinafine-resistance-microsporum-canis-from-a-cat
#11
Yun-Hsia Hsiao, Charles Chen, Hock Siew Han, Rui Kano
A 2-year-old, exotic shorthair cat presented with baldness and mild scaling on trunk that was confirmed as Microsporum canis (M. canis) infection by the following methods. Wood's lamp and trichogram were used to demonstrate fungal elements suggestive of dermatophytosis consistent with M. canis. Dermatophyte test medium (DTM) and polymerase chain reaction (PCR) were used for identification. E-test and broth microdilution test were then utilized to estimate antifungal minimal inhibitory concentrations (MICs) towards ITZ and TRF respectively...
April 16, 2018: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/29656555/bibbidi-bobbidi-bald-two-hairowing-tales-of-princess-package-hairstyles
#12
Bree Zimmerman, Marta Ivars, Kelly M Cordoro
We present cases of localized alopecia on the vertex scalp of two girls after elaborate professional hairstyling marketed as the "Princess Package" at a major U.S. theme park. Localized alopecia followed pain, erythema, and delayed crusting due to necrosis of the scalp. The majority of the affected alopecic areas had evidence of regrowth at interval follow-up, but small areas of scarring alopecia remained. We propose that these cases represent a type of alopecia caused by a combination of pressure ischemia and acute traction alopecia...
April 15, 2018: Pediatric Dermatology
https://www.readbyqxmd.com/read/29617453/the-cultivable-autochthonous-microbiota-of-the-critically-endangered-northern-bald-ibis-geronticus-eremita
#13
Joachim Spergser, Igor Loncaric, Alexander Tichy, Johannes Fritz, Alexandra Scope
The critically endangered Northern bald ibis (Geronticus eremita) is a migratory bird that became extinct in Europe centuries ago. Since 2014, the Northern bald ibis is subject to an intensive rehabilitation and conservation regime aiming to reintroduce the bird in its original distribution range in Central Europe and concurrently to maintain bird health and increase population size. Hitherto, virtually nothing is known about the microbial communities associated with the ibis species; an information pivotal for the veterinary management of these birds...
2018: PloS One
https://www.readbyqxmd.com/read/29599975/exosomes-as-a-novel-pathway-for-regulating-development-and-diseases-of-the-skin
#14
Ying Liu, Haidong Wang, Juan Wang
Exosomes are one of the most potent intercellular communicators, which are able to communicate with adjacent or distant cells. Exosomes deliver various bioactive molecules, including membrane receptors, proteins, mRNA and microRNA, to target cells and serve roles. Recent studies have demonstrated that exosomes may regulate the functions and diseases of the skin, which is the largest organ of the human body. The abnormal functions of the skin lead to the progression of scleroderma, melanoma, baldness and other diseases...
March 2018: Biomedical Reports
https://www.readbyqxmd.com/read/29596556/uveal-melanoma-associated-with-myotonic-dystrophy-a-report-of-6-cases
#15
Lauren A Dalvin, Carol L Shields, Jose S Pulido, Kareem Sioufi, Victoria Cohen, Jerry A Shields
Importance: Patients with myotonic dystrophy (MD) have an increased risk of malignancy including uveal melanoma. This case series further explores the association between these 2 diseases. Objective: To describe a cohort of patients with uveal melanoma associated with MD, including a case of iris melanoma, and MD-associated uveal melanoma in relatives. Design, Setting, and Participants: Retrospective case series at 3 tertiary referral centers (Wills Eye Hospital, Philadelphia, Pennsylvania; Mayo Clinic, Rochester, Minnesota; and Moorsfields Eye Hospital, London, England), between January 1, 2000, and August 31, 2017...
March 29, 2018: JAMA Ophthalmology
https://www.readbyqxmd.com/read/29579678/organohalogen-contaminants-in-common-loons-gavia-immer-breeding-in-western-alberta-canada
#16
Tanya M Brown, Sarah I Lord, David W Schindler, John E Elliott
We examined the influence of biological and geographical factors on the levels and patterns of organohalogen contaminants in blood of adult common loons (Gavia immer) collected from 20 lakes in Alberta, Canada. The loons were captured in the 2006 and 2007 breeding seasons over a 900 m elevation gradient across the eastern slope of the Canadian Rocky Mountains. While PCBs dominated the composition of these contaminants in loons at all sites (∑PCBs > p,p'-DDE > ∑PBDEs > ∑Chlordanes > HCB), p,p'-DDE and ∑PBDEs were also important, averaging approximately 50% and 20% of total PCB concentrations, respectively...
March 17, 2018: Chemosphere
https://www.readbyqxmd.com/read/29575472/single-proteins-placed-within-the-sers-hot-spots-of-self-assembled-silver-nanolenses
#17
Christian Heck, Yuya Kanehira, Janina Kneipp, Ilko Bald
This study demonstrates the bottom-up synthesis of silver nanolenses. A robust coating protocol enabled the functionalization of differently-sized silver nanoparticles with DNA single strands of orthogonal sequence. Coated particles 10 nm, 20 nm, and 60 nm in diameter, respectively, were self-assembled by DNA origami scaffolds to form silver nanolenses. Single entities of the protein streptavidin were selectively integrated in the gap of highest electric field enhancement. Streptavidin labelled with alkyne groups served as model analyte in surface-enhanced Raman scattering (SERS) experiments...
March 25, 2018: Angewandte Chemie
https://www.readbyqxmd.com/read/29556419/inflammatory-and-structural-changes-in-vertebral-bodies-and-posterior-elements-of-the-spine-in-axial-spondyloarthritis-construct-validity-responsiveness-and-discriminatory-ability-of-the-anatomy-based-canden-scoring-system-in-a-randomised-placebo-controlled
#18
Simon Krabbe, Inge J Sørensen, Bente Jensen, Jakob M Møller, Lone Balding, Ole R Madsen, Robert G W Lambert, Walter P Maksymowych, Susanne J Pedersen, Mikkel Østergaard
Background: The Canada-Denmark (CANDEN) definitions of spinal MRI lesions allow a detailed anatomy-based evaluation of inflammatory and structural lesions in vertebral bodies and posterior elements of the spine in patients with axial spondyloarthritis (axSpA). The objective was to examine the reliability, responsiveness and discrimination of scores for spinal inflammation, fat, bone erosion and new bone formation based on the CANDEN system and to describe patterns of inflammatory and structural lesions and their temporal development...
2018: RMD Open
https://www.readbyqxmd.com/read/29551594/dysregulated-il-18-is-a-key-driver-of-immunosuppression-and-a-possible-therapeutic-target-in-the-multiple-myeloma-microenvironment
#19
Kyohei Nakamura, Sahar Kassem, Alice Cleynen, Marie-Lorraine Chrétien, Camille Guillerey, Eva Maria Putz, Tobias Bald, Irmgard Förster, Slavica Vuckovic, Geoffrey R Hill, Seth L Masters, Marta Chesi, P Leif Bergsagel, Hervé Avet-Loiseau, Ludovic Martinet, Mark J Smyth
Tumor-promoting inflammation and avoiding immune destruction are hallmarks of cancer. Here, we demonstrate that the pro-inflammatory cytokine interleukin (IL)-18 is critically involved in these hallmarks in multiple myeloma (MM). Mice deficient for IL-18 were remarkably protected from Vk∗ MYC MM progression in a CD8+ T cell-dependent manner. The MM-niche-derived IL-18 drove generation of myeloid-derived suppressor cells (MDSCs), leading to accelerated disease progression. A global transcriptome analysis of the immune microenvironment in 73 MM patients strongly supported the negative impact of IL-18-driven MDSCs on T cell responses...
March 1, 2018: Cancer Cell
https://www.readbyqxmd.com/read/29550775/nineteen-and-up-study-19up-understanding-pathways-to-mental-health-disorders-in-young-australian-twins
#20
Baptiste Couvy-Duchesne, Victoria O'Callaghan, Richard Parker, Natalie Mills, Katherine M Kirk, Jan Scott, Anna Vinkhuyzen, Daniel F Hermens, Penelope A Lind, Tracey A Davenport, Jane M Burns, Melissa Connell, Brendan P Zietsch, James Scott, Margaret J Wright, Sarah E Medland, John McGrath, Nicholas G Martin, Ian B Hickie, Nathan A Gillespie
PURPOSE: The Nineteen and Up study (19Up) assessed a range of mental health and behavioural problems and associated risk factors in a genetically informative Australian cohort of young adult twins and their non-twin siblings. As such, 19Up enables detailed investigation of genetic and environmental pathways to mental illness and substance misuse within the Brisbane Longitudinal Twin Sample (BLTS). PARTICIPANTS: Twins and their non-twin siblings from Queensland, Australia; mostly from European ancestry...
March 17, 2018: BMJ Open
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