keyword
MENU ▼
Read by QxMD icon Read
search

Actinic lesions

keyword
https://www.readbyqxmd.com/read/28739398/transcriptome-analysis-of-ifm-specific-actin-and-myosin-nulls-in-drosophila-melanogaster-unravels-lesion-specific-expression-blueprints-across-muscle-mutations
#1
Aditi Madan, Divesh Thimmaiya, Ari Franco-Cea, Mohammed Aiyaz, Prabodh Kumar, John C Sparrow, Upendra Nongthomba
Muscle contraction is a highly fine-tuned process that requires the precise and timely construction of large protein sub-assemblies to form sarcomeres. Mutations in many genes encoding constituent proteins of this macromolecular machine result in defective functioning of the muscle tissue. However, the pathways underlying muscle degeneration, and manifestation of myopathy phenotypes are not well understood. In this study, we explored transcriptional alterations that ensue from the absence of the two major muscle proteins - myosin and actin - using the Drosophila indirect flight muscles...
July 21, 2017: Gene
https://www.readbyqxmd.com/read/28735290/membrane-tethered-metalloproteinase-expressed-by-vascular-smooth-muscle-cells-limits-the-progression-of-proliferative-atherosclerotic-lesions
#2
Richard H Barnes, Takeshi Akama, Miina K Öhman, Moon-Sook Woo, Julian Bahr, Stephen J Weiss, Daniel T Eitzman, Tae-Hwa Chun
BACKGROUND: The MMP (matrix metalloproteinase) family plays diverse and critical roles in directing vascular wall remodeling in atherosclerosis. Unlike secreted-type MMPs, a member of the membrane-type MMP family, MT1-MMP (membrane-type 1 MMP; MMP14), mediates pericellular extracellular matrix degradation that is indispensable for maintaining physiological extracellular matrix homeostasis. However, given the premature mortality exhibited by MT1-MMP-null mice, the potential role of the proteinase in atherogenesis remains elusive...
July 22, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28733877/expanding-the-spectrum-of-colonic-manifestations-in-tuberous-sclerosis-l-cell-neuroendocrine-tumor-arising-in-the-background-of-rectal-pecoma
#3
David L Kolin, Kai Duan, Bo Ngan, J Ted Gerstle, Monika K Krzyzanowska, Gino R Somers, Ozgur Mete
Tuberous sclerosis complex (TSC) is an autosomal dominant neurocutaneous condition that predisposes to numerous proliferative lesions, including perivascular epithelioid cell tumors (PEComas), such as lymphangioleiomyomatosis (LAM) and angiomyolipomas, and rare neuroendocrine neoplasms. We describe herein a TSC2-harboring tuberous sclerosis patient manifesting with a synchronous well-differentiated L-cell rectal neuroendocrine tumor and leiomyomatosis-like LAM of the rectum. The background large bowel wall was thickened by confluent nodular areas comprising vessels and spindle-to-epithelioid cells, which are immunoreactive for myoid (smooth muscle actin, muscle specific actin, and desmin) and melanocytic markers (HMB45, Melan-A, microphthalmia transcription factor, and CD117)...
July 21, 2017: Endocrine Pathology
https://www.readbyqxmd.com/read/28730250/metastatic-high-grade-myxofibrosarcoma-review-of-a-clinical-case
#4
Tiberiu Paul Neagu, Ruxandra Diana Sinescu, Valentin Enache, Sanda Claudia Achim, Mirela Ţigliş, Liliana Elena Mirea
We present the particular clinical and histological features of a metastatic high-grade myxofibrosarcoma (MFS) of the left buttock in a 77-year-old male patient. The tumor was biopsied and surgically removed in order to increase the patient's comfort, due to its increased size and aggressive clinical behavior. Computed tomography (CT) revealed metastases in the pleura and mediastinal lymph nodes, so limb-sparing tumor excision followed by palliative care was the best practice for the patient until the fatal outcome...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28723681/inhibition-of-necroptosis-attenuates-kidney-inflammation-and-interstitial-fibrosis-induced-by-unilateral-ureteral-obstruction
#5
Xia Xiao, Chunyang Du, Zhe Yan, Yonghong Shi, Huijun Duan, Yunzhuo Ren
BACKGROUND: Inflammation plays a crucial role in renal interstitial fibrosis, the pathway of chronic kidney diseases. Necroptosis is a novel form of regulated cell death, which plays a potential role in inflammation and renal diseases. The small molecule necrostatin-1 (Nec-1) is a specific inhibitor of necroptosis. This study was aimed at determining the role of necroptosis, RIP1/RIP3/mixed lineage kinase domain-like (MLKL) signaling pathway, in renal inflammation and interstitial fibrosis related to primitive tubulointerstitial injury...
July 20, 2017: American Journal of Nephrology
https://www.readbyqxmd.com/read/28709892/liuwei-dihuang-soft-capsules-attenuates-endothelial-cell-apoptosis-to-prevent-atherosclerosis-through-gpr30-mediated-regulation-in-ovariectomized-apoe-deficient-mice
#6
Yi Jing, Danfeng Cai, Qi Chen, Qingping Xiong, Tianhui Hu, Yuan Yao, Chao Lin, Xin Sun, Ying Lu, Xueyun Kong, Xiang Wu, Yu Li, Huimin Bian
ETHNOPHARMACOLOGICAL RELEVANCE: Liuwei Dihuang (LWDH), a classical traditional Chinese medicine prescription, has been widely used to prevent and to treat various diseases with symptoms of 'Kidney-Yin' deficiency syndrome for over 1000 years in China. It is commonly used to treat functional decline associated with senile disease and menopausal syndrome, especially memory decline, insomnia, diabetes and osteoporosis. Modern experimental pharmacological studies indicated that the mechanism of LWDH treatment of menopausal syndrome may be associated with enhanced estrogenic effects...
July 12, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28708084/molecular-mechanisms-of-human-papillomavirus-induced-skin-carcinogenesis
#7
Martin Hufbauer, Baki Akgül
Infection of the cutaneous skin with human papillomaviruses (HPV) of genus betapapillomavirus (βHPV) is associated with the development of premalignant actinic keratoses and squamous cell carcinoma. Due to the higher viral loads of βHPVs in actinic keratoses than in cancerous lesions, it is currently discussed that these viruses play a carcinogenic role in cancer initiation. In vitro assays performed to characterize the cell transforming activities of high-risk HPV types of genus alphapapillomavirus have markedly contributed to the present knowledge on their oncogenic functions...
July 14, 2017: Viruses
https://www.readbyqxmd.com/read/28707711/rosettes-in-actinic-keratosis-and-squamous-cell-carcinoma-distribution-association-to-other-dermoscopic-signs-and-description-of-the-rosette-pattern
#8
B Lozano-Masdemont, I Polimón-Olabarrieta, S Marinero-Escobedo, A Gutierrez-Pecharromán, E Rodríguez-Lomba
BACKGROUND: Rosettes, a dermoscopic structure characterized by four white points arranged as a 4-leaf clover, supports the dermoscopic diagnosis of actinic keratosis (AK) or squamous cell carcinoma (SCC). OBJECTIVE: The association of rosettes with other dermoscopic structures in AK or SCC and their distribution has not been analysed yet. METHODS: We conducted a prospective study of patients with histologically proven AK or SCC who presented dermoscopic rosettes at initial evaluation...
July 14, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28705516/dermoscopy-of-pigmented-actinic-keratosis-of-the-face-a-study-of-232-cases
#9
A Kelati, H Baybay, E Moscarella, G Argenziano, S Gallouj, F Z Mernissi
The diagnosis of pigmented actinic keratosis (PAK) is often challenging because of overlapping features with lentigo maligna. OBJECTIVE: To investigate dermoscopic patterns of PAK according to their different evolutionary stages, and to correlate the pattern with clinical characteristics of the patients. METHODS: Descriptive and analytical study of 232 PAK. Dermoscopic patterns were divided into two categories: the follicule surroundings' abnormalities (FSA) and follicular keratosis' abnormalities (FKA)...
July 11, 2017: Actas Dermo-sifiliográficas
https://www.readbyqxmd.com/read/28703320/5-aminolevulinic-acid-patch-pdt-in-the-treatment-of-actinic-cheilitis
#10
Sonja Radakovic, Adrian Tanew
BACKGROUND: Actinic cheilitis (AC) is a common disease caused by chronic ultraviolet exposure. OBJECTIVE: Alacare is a self-adhesive, skin coloured 5-aminolaevulinic acid (ALA) patch that has been developed for the treatment of mild to moderate actinic keratosis (AK). Considering the good results in the treatment of AK, the standardized delivery of ALA and the simple application Alacare patch PDT appears as an interesting treatment option for AC. METHODS: We retrospectively assessed the efficacy, tolerability and cosmetic outcome of Alacare patch PDT in eleven patients with AC...
July 13, 2017: Photodermatology, Photoimmunology & Photomedicine
https://www.readbyqxmd.com/read/28702965/hard-to-face-cutaneous-malignant-melanoma
#11
M Vaccaro, M Lentini, J Lotti, M Fioranelli, M G Roccia, T Lotti, C Guarneri
An 88-year-old Caucasian man recently sought medical attention due to recrudescence of skin disease in the area of previously excised nodule (in 2002) on the nose dorsum. The original lesion was clinically considered as a pigmented basal cell carcinoma, after which histological examination revealed a superficial spreading melanoma in vertical growth face (Clark level IV; Breslow thickness 2.1 mm) arising from a pre-existing nevus. The adjacent skin also showed significant actinic damage both in the epidermis and in the dermis...
July 13, 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28700399/ellipsoid-smooth-muscle-tumor-of-the-lower-eyelid-an-exploration-of-its-possible-origin
#12
Frederick A Jakobiec, Fouad R Zakka, Branko Bojovic
Ocular adnexal smooth muscle masses/neoplasms are extremely rare. Such lesions are comparatively more common in the conjunctiva than in the orbit and are most unusual in the eyelid. A 58-year-old woman slowly developed over 4 months a firm, movable sausage-shaped lesion in the deep lateral half of the right lower eyelid. The lesion ran parallel to and above the orbital rim. At surgery, the lesion was located between the orbicularis muscle and the inferior orbital septum. The term ellipsoid is used descriptively and does not imply any particular biologic behavior...
July 10, 2017: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28697223/treatment-of-annular-elastolytic-giant-cell-granuloma-with-topical-tretinoin
#13
Aubrey Wagenseller, Cecilia Larocca, Neelam A Vashi
<p>Annular elastolytic giant cell granuloma, also known as actinic granuloma, is a rare skin condition with a chronic course that is often resistant to treatment. Literature is sparse, and only a handful of case reports are available to guide treatment decisions. Typical first line treatment options include topical and intralesional steroids, topical pimecrolimus, and cryotherapy. Resistant cases have been treated with cyclosporine, systemic steroids, antimalarials, and oral retinoids. In particular, acitretin and isotretinoin have shown success in three cases...
July 1, 2017: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28692931/automatic-discrimination-of-actinic-keratoses-from-clinical-photographs
#14
Panagiota Spyridonos, Georgios Gaitanis, Aristidis Likas, Ioannis D Bassukas
BACKGROUND AND OBJECTIVE: Actinic keratoses (AK) are common premalignant skin lesions that can progress to invasive skin squamous cell carcinoma (sSCC). The subtle accumulation of multiple AK in aging individuals increases the risk of sSCC development, and this underscores the need for efficient treatment and patient follow-up. Our objectives were to develop a method based on color texture analysis of standard clinical photographs for the discrimination of AK from healthy skin and subsequently to test the developed approach in the quantification of field-directed treatment interventions...
July 3, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28692051/transcriptional-regulation-of-ataxia-telangiectasia-and-rad3-related-protein-by-activated-p21-activated-kinase-1-protects-keratinocytes-in-uv-b-induced-premalignant-skin-lesions
#15
S Beesetti, J Mavuluri, R P Surabhi, T M Oberyszyn, K Tober, R S Pitani, L D Joseph, G Venkatraman, S K Rayala
Sun-induced skin lesions, in particular actinic keratosis, are generally considered as premalignant skin lesions that can progress into squamous cell carcinoma (SCC) and invasive SCC if left untreated. Therefore, understanding the molecular mechanisms by which the ultraviolet-B (UV-B)-exposed cells are being protected and the signaling pathways that promote the progression of certain premalignant skin lesions to malignant lesions will permit us to prevent or cure skin cancers. In the current study, we found that phospho-p21-activated kinase-1 (Pak1) and Pak1 expression was high in clinical samples of sunlight-induced premalignant skin lesions assessed by immunohistochemistry...
July 10, 2017: Oncogene
https://www.readbyqxmd.com/read/28683589/infantile-ntrk-associated-mesenchymal-tumors
#16
Jessica L Davis, Christina M Lockwood, Katie Albert, Karen Tsuchiya, Douglas S Hawkins, Erin R Rudzinski
Pediatric fibroblastic/myofibroblastic lesions are a relatively common group of tumors with varying morphologies, for which the molecular mechanisms are becoming increasingly well characterized. Congenital infantile fibrosarcoma (CIFS), perhaps the most well studied of these lesions is characterized by a recurrent ETV6-NTRK3 gene fusion. However, a notable subset of locally aggressive congenital/infantile soft tissue lesions with similar morphologic features to CIFS, have not to-date, shown evidence of any canonical molecular aberration...
January 1, 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28666584/-anatomoclinical-study-of-annular-elastolytic-giant-cell-granuloma
#17
F Margerin, B Cribier
BACKGROUND: Annular elastolytic giant cell granuloma (AEGCG), a rare entity first described in 1979, is very similar to O'Brien actinic granuloma (AG), first described in 1975. Since then, many cases have been published under one or other of the two names. We performed a single-centre histopathology study to identify the distinguishing features and determine whether there was any objective difference between AEGCG and AG. PATIENTS AND METHODS: Cases classed as AEGCG or AG at the dermatopathology laboratory in Strasbourg were included and analysed using haematoxylin-eosin, orcein and Alcian blue staining...
June 27, 2017: Annales de Dermatologie et de Vénéréologie
https://www.readbyqxmd.com/read/28663925/noninvasive-mesoscopic-imaging-of-actinic-skin-damage-using-spatial-frequency-domain-imaging
#18
Jeffrey B Travers, Chien Poon, Daniel J Rohrbach, Nathan M Weir, Elizabeth Cates, Faye Hager, Ulas Sunar
For prevention and accurate intervention planning, it is crucial to predict if lesions will progress towards cancer. In this study, we investigated the change in optical properties and vascular parameters to characterize skin tissue from mild photodamage to actinic keratosis (AK). Multi-wavelength spatial frequency domain imaging (SFDI) measurements were performed on three patients with clinically normal skin, as well as pre-cancerous actinic keratosis lesions. Our results indicate that there exist significant differences in both optical and vascular parameters between these patients, and that these parameters can be early biomarkers of neoplasia...
June 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28662116/actinic-keratosis-modelling-in-mice-a-translational-study
#19
Arnaud Pillon, Bruno Gomes, Isabelle Vandenberghe, Valérie Cartron, Patrick Cèbe, Jean-Christophe Blanchet, Vincent Sibaud, Nicolas Guilbaud, Laurent Audoly, Laurence Lamant, Anna Kruczynski
BACKGROUND: Actinic keratoses (AK) are pre-malignant cutaneous lesions caused by prolonged exposure to ultraviolet radiation. As AKs lesions are generally accepted to be the initial lesions in a disease continuum that progresses to squamous cell carcinoma (SCC), AK lesions have to be treated. They are also the second most common reason for visits to the dermatologist. Several treatments are available but their efficacy still needs to be improved. The UV-B-induced KA lesion mouse model is used in preclinical studies to assess the efficacy of novel molecules, even though it is often more representative of advanced AK or SCC...
2017: PloS One
https://www.readbyqxmd.com/read/28658093/inflammatory-myofibroblastic-tumor-of-the-lumbar-spinal-canal-a-case-report-with-literature-review
#20
REVIEW
Shanshan Wang, Liang Chen, Zhang Cao, Xijin Mao, Lin Zhang, Bin Wang
RATIONALE: Inflammatory myofibroblastic tumor (IMT) is a rare type of mesenchymal tumor. IMT can arise in multiple anatomic locations. IMT of the lumbar spinal canal is exceptionally rare. PATIENT CONCERNS: Here, we report the case of a 56-year-old male patient with an IMT who was in good health until 1 year prior to admission, when he began experiencing pain in both lower extremities and the lower back. INTERVENTIONS: A space-occupying lesion in the lumbar canal was identified by magnetic resonance imaging and then surgically resected...
June 2017: Medicine (Baltimore)
keyword
keyword
48295
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"