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https://www.readbyqxmd.com/read/28636260/lichenoid-keratosis-is-frequently-misdiagnosed-as-basal-cell-carcinoma
#1
D Maor, C Ondhia, L L Yu, J J Chan
Lichenoid keratosis (LK), also known as benign lichenoid keratosis or lichen planus-like keratosis, is a solitary, pink to red-brown scaly plaque representing a host immunological response to a variety of precursor lesions. LK is often misdiagnosed as a dermatological malignancy owing to its clinical resemblance to basal cell carcinoma (BCC) or Bowen disease. We performed a retrospective analysis of the pathology records of a series of LK lesions with reference to the demographic features and accuracy of clinical diagnosis...
June 21, 2017: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/28636066/assessment-of-the-cross-bridge-induced-interaction-of-red-blood-cells-by-optical-trapping-combined-with-microfluidics
#2
Kisung Lee, Christian Wagner, Alexander V Priezzhev
No abstract text is available yet for this article.
September 1, 2017: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/28636039/a-convenient-method-for-multicolour-labelling-of-proteins-with-bodipy-fluorophores-via-tyrosine-residues
#3
Miffy H Y Cheng, Huguette Savoie, Francesca Bryden, Ross W Boyle
Fluorescence is an essential imaging modality for labelling and visualising cells and sub-cellular structures. Multicolour labelling is especially challenging due to differences in physicochemical and photophysical behaviour of structurally unrelated fluorophores in the heterogeneous environments found in sub-cellular compartments. Herein, we report the conjugation of three azide-bearing BODIPYs with similar core structures but widely different emission wavelengths (green, red and NIR) to tyrosine residues of a model globular protein (BSA) via a common linking methodology...
June 21, 2017: Photochemical & Photobiological Sciences
https://www.readbyqxmd.com/read/28635645/cembrene-diterpenoids-with-ether-linkages-from-sarcophyton-ehrenbergi-an-anti-proliferation-and-molecular-docking-assessment
#4
Mohamed-Elamir F Hegazy, Abdelsamed I Elshamy, Tarik A Mohamed, Ahmed R Hamed, Mahmoud A A Ibrahim, Shinji Ohta, Paul W Paré
Three new cembrene diterpenoids, sarcoehrenbergilid A-C (1-3), along with four known diterpenoids, sarcophine (4), (+)-7α,8β-dihydroxydeepoxysarcophine (5), sinulolide A (6), and sinulolide B (7), and one steroid, sardisterol (8), were isolated and characterized from a solvent extract of the Red Sea soft coral Sarcophyton ehrenbergi. Chemical structures were elucidated by NMR and MS analyses with absolute stereochemistry determined by X-ray analysis. Since these isolated cembrene diterpenes contained 10 or more carbons in a large flexible ring, conformer stabilities were examined based on density functional theory calculations...
June 21, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28635593/the-protein-slr1143-is-an-active-diguanylate-cyclase-in-synechocystis-sp-pcc-6803-and-interacts-with-the-photoreceptor-cph2
#5
Veronika Angerer, Philipp Schwenk, Thomas Wallner, Volkhard Kaever, Andreas Hiltbrunner, Annegret Wilde
Cyclic-di-GMP is an ubiquitous second messenger in bacteria. Several c-di-GMP receptor proteins have been identified to date, and downstream signalling pathways are often mediated through protein-protein interactions. The photoreceptor Cph2 from the cyanobacterium Synechocystis sp. PCC 6803 comprises three domains related to c-di-GMP metabolism: two GGDEF and one EAL domain. It has been shown that the C-terminal GGDEF domain acts as blue-light triggered c-di-GMP producer thereby inhibiting motility of the cells in blue light...
June 21, 2017: Microbiology
https://www.readbyqxmd.com/read/28635513/evaluation-of-platelet-indices-and-red-cell-distribution-width-as-new-biomarkers-for-the-diagnosis-of-acute-appendicitis
#6
Noha Boshnak, Mohamed Boshnaq, Hatem Elgohary
BACKGROUND: Debate around the value of laboratory tests in establishing the diagnosis of acute appendicitis (AA) still continues. This prospective study aimed to investigate the changes in mean platelet volume (MPV), platelet distribution width (PDW), and red cell distribution width (RDW) with the diagnosis of acute appendicitis. METHOD: 200 patients who underwent emergency appendectomy were included. According to postoperative histology, patients were divided into three groups: acute non-complicated, acute complicated appendicitis (positive appendicectomy groups), and negative appendectomy group...
February 16, 2017: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
https://www.readbyqxmd.com/read/28635512/effect-of-simvastatin-on-lipid-accumulation-and-the-expression-of-cxcl16-and-nephrin-in-podocyte-induced-by-oxidized-ldl
#7
Li Wang, Xiujun Yao, Qian Li, Shuzhen Sun
OBJECTIVE: To investigate the effect of simvastatin on lipid accumulation and the expression of CXCL16 and Nephrin in murine podocytes induced by oxidized LDL (OxLDL) in order to explore the mechanism of protection. METHODS: Murine podocytes (MPC5) were incubated with OxLDL (80 μg/ml) at different concentrations of simvastatin (0, 1.0, and 2.0 μg/ml) for 48 hours. Oil red O staining was used for the assessment of lipid accumulation in podocytes, and colorimetric cholesterol detection kit was used for the quantitative measurement...
February 10, 2017: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
https://www.readbyqxmd.com/read/28634498/evaluation-of-in-vitro-cytotoxicity-biocompatibility-and-changes-in-the-expression-of-apoptosis-regulatory-proteins-induced-by-cerium-oxide-nanocrystals
#8
Shahanavaj Khan, Anees A Ansari, Christian Rolfo, Andreia Coelho, Maha Abdulla, Khayal Al-Khayal, Rehan Ahmad
Cerium oxide nanocrystals (CeO2-NCs) exhibit superoxide dismutase and catalase mimetic activities. Based on these catalytic activities, CeO2-NCs have been suggested to have the potential to treat various diseases. The crystalline size of these materials is an important factor that influences the performance of CeO2-NCs. Previous reports have shown that several metal-based nanocrystals, including CeO2-NCs, can induce cytotoxicity in cancer cells. However, the underlying mechanisms have remained unclear. To characterize the anticancer activities of CeO2-NCs, several assays related to the mechanism of cytotoxicity and induction of apoptosis has been performed...
2017: Science and Technology of Advanced Materials
https://www.readbyqxmd.com/read/28634183/syk-inhibitors-interfere-with-erythrocyte-membrane-modification-during-p-falciparum-growth-and-suppress-parasite-egress
#9
Antonella Pantaleo, Kristina R Kesely, Maria Carmina Pau, Ioannis Tsamesidis, Evelin Schwarzer, Oleksii A Skorokhod, Huynh D Chien, Marta Ponzi, Lucia Bertuccini, Philip S Low, Francesco M Turrini
Band 3 (a.k.a. the anion exchanger, SLCA1, AE1) constitutes the major attachment site of the spectrin-based cytoskeleton to the erythrocyte's lipid bilayer and thereby contributes critically to the stability of the red cell membrane. During the intra-erythrocytic stage of Plasmodium falciparum's life cycle, band 3 becomes tyrosine phosphorylated in response to oxidative stress, leading to a decrease in its affinity for the spectrin/actin cytoskeleton and causing global membrane destabilization. Because this membrane weakening is hypothesized to facilitate parasite egress and the consequent dissemination of released merozoites throughout the bloodstream, we decided to explore which tyrosine kinase inhibitors might block the kinase-induced membrane destabilization...
June 20, 2017: Blood
https://www.readbyqxmd.com/read/28634135/outcomes-and-role-of-urgent-endoscopy-in-high-risk-patients-with-acute-nonvariceal-gastrointestinal-bleeding
#10
Soo-Han Cho, Yoon-Seon Lee, Youn-Jung Kim, Chang Hwan Sohn, Shin Ahn, Dong-Woo Seo, Won Young Kim, Jae Ho Lee, Kyoung Soo Lim
BACKGROUND & AIMS: We investigated clinical outcomes in high-risk patients with acute nonvariceal upper gastrointestinal bleeding (UGIB), and determined if urgent endoscopy is effective. METHODS: Consecutive patients with Glasgow-Blatchford score >7 who underwent endoscopy for acute nonvariceal UGIB at the emergency department from January 1, 2005, to December 31, 2014, were included. Urgent (<6 h) and elective (6-48 h) endoscopies were defined according to the time to endoscopy after the initial presentation...
June 17, 2017: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28634010/lamp-1-chimeric-dna-vaccines-enhance-the-antibody-response-in-japanese-flounder-paralichthys-olivaceus
#11
Iang Rondón-Barragán, Reiko Nozaki, Ikuo Hirono, Hidehiro Kondo
DNA vaccination is one method to protect farmed fish from viral and bacterial diseases. Chimeric antigens encoded by DNA vaccines have been shown to increase the resistance to viral diseases. Here, we sequenced the gene encoding lysosome-associated membrane protein-1 from Japanese flounder, Paralichthys olivaceus, (JfLAMP-1) and assessed its use in a chimeric DNA vaccine fused with the major capsule protein (MCP) from red seabream iridovirus (RSIV). JfLAMP-1 cDNA has a length of 1248 bp encoding 415 aa, which contains transmembrane and cytoplasmic domains...
June 17, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28633997/nicotinamide-inhibits-the-growth-of-p-falciparum-and-enhances-the-antimalarial-effect-of-artemisinin-chloroquine-and-pyrimethamine
#12
Sergey O Tcherniuk, Olga Chesnokova, Irina V Oleinikov, Andrew V Oleinikov
Nicotinamide (vitamin B3) - is a water soluble amide derivative of nicotinic acid, which has been used at high doses for a variety of therapeutic applications. However, its antimalarial effect has not been intensively explored. In this work we analysed the effect of nicotinamide alone and in combination with artemisinin, chloroquine andpyrimethamine on the growth of blood stages of P. falciparum. Our results demonstrate that nicotinamide effectively inhibits the growth of blood stage parasites with IC50 of 6...
June 17, 2017: Molecular and Biochemical Parasitology
https://www.readbyqxmd.com/read/28633813/multi-stimuli-responsive-smart-chitosan-based-microcapsules-for-targeted-drug-delivery-and-triggered-drug-release
#13
Xuejun Cui, Xinyu Guan, Shuangling Zhong, Jie Chen, Houjuan Zhu, Zhanfeng Li, Fengzhi Xu, Peng Chen, Hongyan Wang
In the present study, we designed a novel, multi-stimuli responsive, biocompatible and non-immunogenic smart carrier for targeted delivery and triggered release of hydrophobic drugs. The designed multi-stimuli responsive smart chitosan-based microcapsules (MSRS-CS-MCs) have been fabricated successfully from folic acid (FA) functionalized thiolated chitosan via a facile sonochemical method. Targeting moiety FA and red fluorescent dye (Rhodamine B isothiocyanate, RITC) were immobilized onto the shells of microcapsules...
September 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28633658/nucleated-red-blood-cells-critical-illness-survivors-and-postdischarge-outcomes-a-cohort-study
#14
Steven W Purtle, Clare M Horkan, Takuhiro Moromizato, Fiona K Gibbons, Kenneth B Christopher
BACKGROUND: Little is known about risk factors associated with out-of-hospital outcomes in survivors of critical illness. We hypothesized that the presence of nucleated red blood cells in patients who survived critical care would be associated with adverse outcomes following hospital discharge. METHODS: We performed a two-center observational cohort study of patients treated in medical and surgical intensive care units in Boston, Massachusetts. All data were obtained from the Research Patient Data Registry at Partners HealthCare...
June 21, 2017: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/28633633/utilization-and-farmers-knowledge-on-pigeonpea-diversity-in-benin-west-africa
#15
Mathieu Anatole Tele Ayenan, Agyemang Danquah, Léonard Essehou Ahoton, Kwadwo Ofori
BACKGROUND: Understanding factors driving farmers' uses of crop genetic resources is a key component not only to design appropriate conservation strategies but also to promote sustainable production. However, in Benin, limited information is available on farmers' knowledge related to pigeonpea uses and conservation. This study aimed at i) identifying and investigating the different uses of pigeonpea in relation with socio-cultural factors, namely age, gender, ethnic group and respondents' residence, ii) assessing pigeonpea varieties richness at household level and iii) evaluating the extent and distribution of pigeonpea varieties...
June 20, 2017: Journal of Ethnobiology and Ethnomedicine
https://www.readbyqxmd.com/read/28632811/management-of-poorly-controlled-indolent-systemic-mastocytosis-using-narrowband-uvb-phototherapy
#16
Zain Husain, Dylan Waterman, Kathleen Ellison, Jennifer A DeSimone
The mastocytoses comprise a group of proliferative stem cell disorders defined by the abnormal accumulation of mast cells (MCs) in the skin or other body tissues including the bone marrow, gastrointestinal tract, and liver. Systemic mastocytosis is defined by the presence of one major and one minor criterion or 3 minor criteria delineated by the World Health Organization (WHO). We present the case of a 57-year-old woman with a 10-year history of red-brown pruritic maculopapular lesions on the upper and lower extremities and trunk who was originally diagnosed with cutaneous mastocytosis...
May 2017: Cutis; Cutaneous Medicine for the Practitioner
https://www.readbyqxmd.com/read/28632809/acquired-epidermodysplasia-verruciformis-occurring-in-a-renal-transplant-recipient
#17
Jill K Henley, Eric W Hossler
Acquired epidermodysplasia verruciformis (EDV) is a rare condition occurring in patients with depressed cellular immunity, particularly individuals with human immunodeficiency virus (HIV). Acquired EDV is less commonly reported in recipients of stem cell or solid organ transplantation. This condition typically manifests within 5 years of initial immunosuppression and can present as multiple hypopigmented to red, tinea versicolor-like macules or as multiple verrucous, flat-topped papules distributed over the trunk, arms, and legs...
May 2017: Cutis; Cutaneous Medicine for the Practitioner
https://www.readbyqxmd.com/read/28632668/low-intensity-pulsed-ultrasound-lipus-promotes-bmp9-induced-osteogenesis-and-suppresses-inflammatory-responses-in-human-periodontal-ligament-derived-stem-cells
#18
Joji Kusuyama, Toshiaki Nakamura, Tomokazu Ohnishi, Nahoko Eiraku, Kazuyuki Noguchi, Tetsuya Matsuguchi
OBJECTIVE: We previously reported that low intensity pulsed ultrasound (LIPUS) promotes marrow stromal cell (MSC) osteogenesis and suppresses the LPS-induced inflammatory response in osteoblasts. Here, we examined the effects of LIPUS on human periodontal ligament-derived stem cells (hPDLSCs) in chronic inflammatory bone disease, such as periodontitis. MATERIALS AND METHODS: hPDLSCs were collected from 3 healthy third molars. hPDLSCs were induced to differentiate by either recombinant BMP2 or BMP9 with or without daily LIPUS treatment (20 min/d)...
July 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28632647/high-osteogenic-potential-of-adipose-and-muscle-derived-mesenchymal-stem-cells-in-spinal-ossification-model-mice
#19
Xizhe Liu, Gentaro Kumagai, Kanichiro Wada, Toshihiro Tanaka, Toru Asari, Kazuki Oishi, Taku Fujita, Hiroki Mizukami, Ken-Ichi Furukawa, Yasuyuki Ishibashi
STUDY DESIGN: Basic experiments in a mouse model of ossification of the posterior longitudinal ligament (OPLL). OBJECTIVE: To assess the osteogenic potential of mesenchymal stem cells (MSCs) obtained from muscle and adipose tissue in Tiptoe-walking (ttw) mice, in which cervical OPLL compresses the spinal cord and causes motor and sensory dysfunction. SUMMARY OF BACKGROUND DATA: In humans, MSCs have been implicated in the pathogenesis of cervical OPLL...
June 19, 2017: Spine
https://www.readbyqxmd.com/read/28632254/osteogenic-potential-of-gingival-mesenchymal-stem-cells-over-titanium-machined-surfaces
#20
Julio A Carrion, Junaid Rajani, Mohamed Al Bahrawy, Xiaojun Chan, Tae Jin Kim, Srinivas Myneni, Vincent J Iacono
PURPOSE: To evaluate the biochemical composition of bone nodules deposited by gingival mesenchymal stem cells (GMSCs) over titanium machined surfaces in vitro. MATERIALS AND METHODS: GMSCs were isolated from healthy gingival tissues of patients undergoing crown-lengthening surgical procedures. GMSCs were characterized following the International Society for Cellular Therapy guidelines. After incubation of the GMSCs with titanium discs, osteogenic differentiation was induced for 28 days...
June 20, 2017: International Journal of Oral & Maxillofacial Implants
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