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https://www.readbyqxmd.com/read/28920800/cutaneous-t-cell-lymphoma-with-lymph-node-metastasis-in-an-adult-addax-addax-nasomaculatus
#1
Zoltan S Gyimesi, Roy B Burns, Sheryl Coutermarsh-Ott, Chris A Schiller, Rita McManamon
A 13-yr-old male addax (Addax nasomaculatus) presented with locally extensive alopecia, slight erythema, and skin thickening on the medial aspect of the left rear leg between the stifle and tarsus. Cutaneous T-cell lymphoma was diagnosed after histopathology and immunohistochemical staining of representative skin-punch biopsies. No treatment was elected, and the addax was euthanized 3 yr later because of poor body condition, chronic dental disease, and confirmed spread of lymphoma to other cutaneous locations...
September 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28919383/prediction-of-air-entrapment-in-tableting-an-approximate-solution
#2
Antonios Zavaliangos, Jeffrey M Katz, Dominick Daurio, Michael Johnson, Armen Pirjanian, Fernando Alvarez-Nunez
Αn approximate solution is presented for the prediction of air entrapment during tableting. Assuming weak coupling of the deformation of the solid phase, the flow of interstitial air and a set of reasonable additional geometric assumptions, the general problem is reduced to one dimension. Experimental values of air permeability through tablet specimens of commonly used pharmaceutical excipients were obtained using a 3D printed test cell outfitted to a powder rheometer. Using these values, combined with a numerical solution of the governing partial differential equation, parametric studies are presented that demonstrate the importance of permeability, compaction speed, tablet size, and punch-die tolerance on air entrapment...
September 14, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28915427/breast-lymphoma-in-a-patient-with-b-cell-non-hodgkin-lymphoma-a-case-report-study
#3
Spyridon Marinopoulos, Panagiotis Safioleas, Lamprini Skorda, Eleni Vassilopoulou, Flora Zagouri, Maria Sotiropoulou, Peter Drakakis, Constantine Dimitrakakis
INTRODUCTION: Breast involvement in Non Hodgkin Lymphoma is a rare entity as it accounts for 2.2% of all extranodal lymphomas. PRESENTATION OF CASE: A 59-year-old woman was referred to our Breast Unit because of two nodules of the right breast newly discovered during her annual mammography. Moreover, during the physical examination, a red-brown itchy lump of the scalp was discovered. The punch biopsies of the scalp lesion and ultrasound-guided core biopsies of both nodules of the right breast, revealed the presence of diffuse large B-cell Non Hodgkin Lymphoma in all tissue specimen sites...
September 7, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28915283/clinical-evaluation-of-a-multi-modal-facial-serum-that-addresses-hyaluronic-acid-levels-in-skin
#4
Susana Raab, Margarita Yatskayer, Stephen Lynch, Megan Manco, Christian Oresajo
BACKGROUND: Hyaluronic acid (HA), the major glycosaminoglycan present in the human skin, is a key contributor to water retention and mechanical support in skin. The level, size, and functionality of cutaneous HA are known to diminish with age. Topical treatments designed to increase the HA content of skin have been met with limited success. The purpose of this study was to evaluate the tolerance and efficacy of a multi-modal facial serum containing HA, Proxylane (C-Xyloside), purple rice extract, and dipotassium glycyrrhizate in addressing HA levels in skin...
September 1, 2017: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28905096/comparison-of-suction-blistering-and-tape-stripping-for-analysis-of-epidermal-genes-proteins-and-lipids
#5
Marek Svoboda, Marta Hlobilová, Markéta Marešová, Michaela Sochorová, Andrej Kováčik, Kateřina Vávrová, Iva Dolečková
Analysis of epidermal genes, proteins and lipids is important in the research and diagnosis of skin diseases. Although punch biopsy is the first-choice technique for the skin sampling, it is unnecessarily invasive for obtaining a sample just for the epidermal analysis. Here we compare two less invasive methods, suction blistering (SB) and tape stripping (TS), for the analysis of selected epidermal genes (quantitative real-time reverse transcription PCR, qRT-PCR), proteins (western blotting, WB), and lipids in ten healthy volunteers...
September 13, 2017: Archives of Dermatological Research
https://www.readbyqxmd.com/read/28898720/not-so-secret-agents-event-related-potentials-to-semantic-roles-in-visual-event-comprehension
#6
Neil Cohn, Martin Paczynski, Marta Kutas
Research across domains has suggested that agents, the doers of actions, have a processing advantage over patients, the receivers of actions. We hypothesized that agents as "event builders" for discrete actions (e.g., throwing a ball, punching) build on cues embedded in their preparatory postures (e.g., reaching back an arm to throw or punch) that lead to (predictable) culminating actions, and that these cues afford frontloading of event structure processing. To test this hypothesis, we compared event-related brain potentials (ERPs) to averbal comic panels depicting preparatory agents (ex...
September 9, 2017: Brain and Cognition
https://www.readbyqxmd.com/read/28895441/successful-placement-of-a-baha-implant-in-a-patient-with-epidermolysis-bullosa-a-case-report-and-review-of-the-literature
#7
Jason R Brown, D Micah Milgraum, Farhaad R Riyaz, Marla N Jahnke, Prasad John Thottam
INTRODUCTION: Epidermolysis bullosa (EB) is a spectrum of mechanobullous disorders characterized by blistering following minor trauma or traction to the skin. Hearing loss in this population is poorly described in the otolaryngology literature, and its treatment oftentimes results in external auditory canal skin irritation. CASE PRESENTATION: We present the case of a 26-year-old female with EB and mixed hearing loss unable to wear conventional hearing aids due to sequelae of the external auditory canals...
September 1, 2017: Annals of Otology, Rhinology, and Laryngology
https://www.readbyqxmd.com/read/28895290/design-of-a-novel-two-component-hybrid-dermal-scaffold-for-the-treatment-of-pressure-sores
#8
Vaibhav Sharma, Nupur Kohli, Dale Moulding, Halimat Afolabi, Lilian Hook, Chris Mason, Elena García-Gareta
The aim of this study is to design a novel two-component hybrid scaffold using the fibrin/alginate porous hydrogel Smart Matrix combined to a backing layer of plasma polymerized polydimethylsiloxane (Sil) membrane to make the fibrin-based dermal scaffold more robust for the treatment of the clinically challenging pressure sores. A design criteria are established, according to which the Sil membranes are punched to avoid collection of fluid underneath. Manual peel test shows that native silicone does not attach to the fibrin/alginate component while the plasma polymerized silicone membranes are firmly bound to fibrin/alginate...
September 12, 2017: Macromolecular Bioscience
https://www.readbyqxmd.com/read/28892900/immunohistochemical-expression-of-caspase-3-in-psoriasis
#9
Shaimaa M M Bebars, Dalia Rifaat Al-Sharaky, Mohammed A Gaber, Dina Ragab Afify
INTRODUCTION: Psoriasis is a persistent chronic immune-mediated, relapsing, inflammatory and hyper proliferative skin disorder with genetic predisposition. Psoriasis can be considered as a T-cell mediated disease, with a complex role for a variety of cytokine interaction between keratinocytes and T-lymphocytes. Caspase-3 is an enzyme that plays a key role in apoptosis; it is a member of the family of cysteinyle aspartate specific proteases. AIM: To evaluate the expression of caspase-3 in Egyptian psoriasis patients and its role in apoptosis of keratinocytes...
July 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28890543/the-altered-pd-1-pd-l1-pathway-delivers-the-one-two-punch-effects-to-promote-the-treg-th17-imbalance-in-pre-eclampsia
#10
Yonghong Zhang, Zhaozhao Liu, Mei Tian, Xiaohui Hu, Liling Wang, Jinlu Ji, Aihua Liao
The programmed cell death-1 (PD-1)/PD-ligand 1 (PD-L1) pathway is critical for normal pregnancy by promoting regulatory T (Treg) cell development and inhibiting the Th17 response. However, the relationship between the PD-1/PD-L1 pathway and the Treg/Th17 imbalance in pre-eclampsia (PE) is an enigma. In this study, decreased PD-1 and PD-L1 expression and a Treg/Th17 imbalance were observed at the maternal-fetal interface in PE. The regulatory effects of the PD-1/PD-L1 pathway on the Treg and Th17 cell quantities were determined in vitro by targeting T-cell proliferation, differentiation and transdifferentiation...
September 11, 2017: Cellular & Molecular Immunology
https://www.readbyqxmd.com/read/28888930/a-combined-experimental-modeling-and-computational-approach-to-interpret-the-viscoelastic-response-of-the-white-matter-brain-tissue-during-indentation
#11
Aref Samadi-Dooki, George Z Voyiadjis, Rhett W Stout
Viscoelastic properties of the white matter brain tissue are systematically studied in this paper utilizing indentation experiments, mathematical modeling, and finite element simulation. It is first demonstrated that the internal stiffness of the instrument needs to be thoroughly obtained and incorporated in the analysis as its contribution to the recorded mechanical response is significant for experiments on very compliant materials. The flat-punch monotonic indentation is then performed indirectly on sagittal plane slices with pushing a large rigid coverslip into the sample surface...
September 1, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28882732/mesenchymal-stem-cells-and-their-conditioned-medium-can-enhance-the-repair-of-uterine-defects-in-a-rat-model
#12
Chi-Hong Ho, Chen-Wei Lan, Chen-Yi Liao, Shih-Chieh Hung, Hsin-Yang Li, Yen-Jen Sung
BACKGROUND: Our aim was to examine the roles of mesenchymal stem cell (MSC) transplantation in the repair of large uterine defects. METHODS: Uterine defects were created in both uterine horns of female rats by a punch instrument, and bone marrow-derived MSCs, MSC-conditioned medium (MSC-CM) or vehicle were injected into the myometrium around the defect. The rate of uterine defect repair was monitored on day 2 and 4 after operation. Cytokine array of MSC-CM was performed, followed by neutralizing antibody experiments to clarify the exact cytokine participating in the MSC-CM-enhanced wound repair...
September 4, 2017: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/28881180/giant-pilomatrix-carcinoma-of-the-face
#13
Sapna Lohiya, Yeshwant B Rawal, Jasjit K Dillon
This case report describes an unusually large facial pilomatrix carcinoma (PC) in a 60-year-old man. This PC had been growing slowly for 11 months and had recently ulcerated. It measured 9 cm × 7 cm × 5 cm. Initial punch biopsy findings were inconclusive. The tumor was excised in total with 5-mm margins in a supra-superficial musculoaponeurotic system plane. The defect was reconstructed with a cervicofacial bilobed rotational advancement flap. Histopathologic findings confirmed the diagnosis of PC...
August 12, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28873128/safety-and-feasibility-of-antiretroviral-preexposure-prophylaxis-for-adolescent-men-who-have-sex-with-men-aged-15-to-17-years-in-the-united-states
#14
Sybil G Hosek, Raphael J Landovitz, Bill Kapogiannis, George K Siberry, Bret Rudy, Brandy Rutledge, Nancy Liu, D Robert Harris, Kathleen Mulligan, Gregory Zimet, Kenneth H Mayer, Peter Anderson, Jennifer J Kiser, Michelle Lally, Jennifer Brothers, Kelly Bojan, Jim Rooney, Craig M Wilson
Importance: Adolescents represent a key population for implementing preexposure prophylaxis (PrEP) interventions worldwide, yet tenofovir disoproxil fumarate/emtricitabine (TDF/FTC) for PrEP is only licensed for adults. Objective: To examine the safety of and adherence to PrEP along with changes in sexual risk behavior among adolescent men who have sex with men (MSM). Design, Setting, and Participants: Adolescent Medicine Trials Network for HIV/AIDS Interventions 113 (Project PrEPare) was a PrEP demonstration project that evaluated the safety, tolerability, and acceptability of TDF/FTC and patterns of use, rates of adherence, and patterns of sexual risk behavior among healthy young MSM aged 15 to 17 years...
September 5, 2017: JAMA Pediatrics
https://www.readbyqxmd.com/read/28869060/the-effects-of-topical-nitric-oxide-on-healing-of-partial-thickness-porcine-burns
#15
Adam J Singer, Younghwan Choi, Mohammed Rashel, Jimmy Toussaint, Steve A McClain
BACKGROUND: Nitric oxide is a wound mediator that promotes wound healing. We hypothesized that topical application of nitric oxide would speed reepithelialization, enhance angiogenesis, and reduce scar thickness in a partial thickness porcine burn model. METHODS: While under general anesthesia, 20 partial thickness burns were created on the backs of four female Yorkshire swine using a 2.5cm×2.5cm×7.5cm, 150-g aluminum bar, preheated to 80°C and applied for 20s...
August 28, 2017: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/28867712/effect-of-the-external-lubrication-method-for-a-rotary-tablet-press-on-the-adhesion-of-the-film-coating-layer
#16
Hisami Kondo, Hiroyasu Toyota, Takayuki Kamiya, Kazunari Yamashita, Tadashi Hakomori, Junko Imoto, Shin-Ichiro Kimura, Yasunori Iwao, Shigeru Itai
External lubrication is a useful method which reduces the adhesion of powder to punches and dies by spraying lubricants during the tableting process. However, no information is available on whether the tablets prepared using an external lubrication system can be applicable for a film coating process. In this study, we evaluated the adhesion force of the film coating layer to the surface of tablets prepared using an external lubrication method, compared with those prepared using internal lubrication method. We also evaluated wettability, roughness and lubricant distribution state on the tablet surface before film coating, and investigated the relationship between peeling of the film coating layer and these tablet surface properties...
2017: Chemical & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28862876/quantification-of-cotinine-in-dried-blood-spots-as-a-biomarker-of-exposure-to-tobacco-smoke
#17
Daniel Ladror, Bruce Pitt, William Funk
OBJECTIVE: We present an ultra-sensitive, minimally-invasive method for quantifying cotinine in dried blood spot (DBS) samples as a biomarker of exposure to tobacco smoke that can be collected using a simple heel or finger prick to obtain blood samples. METHODS: Cotinine levels were measured in matched plasma and reconstituted DBS samples from smokers and nonsmokers to evaluate assay parameters. In addition, we applied this new method to finger-prick DBS samples that were collected from infants, children and young adults ages 1-21 to estimate exposure to tobacco smoke...
September 18, 2017: Biomarkers: Biochemical Indicators of Exposure, Response, and Susceptibility to Chemicals
https://www.readbyqxmd.com/read/28860692/flap-motility-as-a-sign-of-posterior-capsule-rupture-in-peripherally-extended-anterior-capsular-tears
#18
Rohit Om Parkash, Shruti Mahajan, Vinod Biala, Tushya Om Parkash, Alhaj F Tasneem
PURPOSE: To describe various types of anterior capsular tears and an early diagnostic, flap motility, as a sign of posterior capsular rupture following posterior extension of radial tears. DESIGN: This was a prospective study carried out in 4,331 eyes that underwent phacoemulsification in a private practice setting from April 2015 to February 2016. Twenty six consecutive cases of anterior capsular tears were included. Morphological features of anterior capsular tears and resultant complications were evaluated...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28859747/auricular-hemosiderosis-in-a-diabetic-patient
#19
Krista N Larson, Mark A Russell
A 74-year-old Caucasian man with poorly controlled diabetes and hypertension was seen in the dermatology clinic for treatment of a nodular basal cell carcinoma on his right temple. He had poorly controlled diabetes for decades and had been insulin dependent for 20 to 25 years. He had not been on any anticoagulation therapy in the past or present and had no history of a hematologic disorder. He was retired and did woodworking as a hobby. During a routine presurgical head and neck skin examination, he was noted to have macular bluegray dyspigmentation of the central portion of the anterior portion of his ear lobes, bilaterally (Figure 1)...
2017: Skinmed
https://www.readbyqxmd.com/read/28859737/techniques-for-optimizing-surgical-scars-part-1-wound-healing-and-depressed-atrophic-scars
#20
Sailesh Konda, Kathryn Potter, Vicky Zhen Ren, Apphia Lihan Wang, Aditya Srinivasan, Suneel Chilukuri
Surgical management of benign or malignant cutaneous tumors may result in noticeable scars that are of great concern to patients, regardless of sex, age, or ethnicity. Techniques to optimize surgical scars are discussed in this three-part review. In part 1, an overview of the importance of preoperative planning, intraoperative technique, and pathophysiology of wound healing is followed by a discussion of scar revision options for depressed/atrophic scars. Scar revision options for these scars include dermabrasion, needling and subcision, punch excision and grafts, fillers, nonablative fractional lasers, ablative and fractional ablative lasers, and platelet-rich plasma (PRP)...
2017: Skinmed
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