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https://www.readbyqxmd.com/read/29036822/cortical-cerebral-microinfarcts-on-3-tesla-mri-in-patients-with-vascular-cognitive-impairment
#1
Doeschka A Ferro, Susanne J van Veluw, Huiberdina L Koek, Lieza G Exalto, Geert Jan Biessels
BACKGROUND: Cerebral microinfarcts (CMIs) are small ischemic lesions that are a common neuropathological finding in patients with stroke or dementia. CMIs in the cortex can now be detected in vivo on 3 Tesla MRI. OBJECTIVE: To determine the occurrence of CMIs and associated clinical features in patients with possible vascular cognitive impairment (VCI). METHOD: 182 memory-clinic patients (mean age 71.4±10.6, 55% male) with vascular injury on brain MRI (i...
October 12, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29034063/targeting-orthotopic-gliomas-with-renal-clearable-luminescent-gold-nanoparticles
#2
Chuanqi Peng, Xiaofei Gao, Jing Xu, Bujie Du, Xuhui Ning, Shaoheng Tang, Robert M Bachoo, Mengxiao Yu, Woo-Ping Ge, Jie Zheng
A major clinical translational challenge in nanomedicine is the potential of toxicity associated with the uptake and long-term retention of non-degradable nanoparticles (NPs) in major organs. The development of inorganic NPs that undergo renal clearance could potentially resolve this significant biosafety concern. However, it remains unclear whether inorganic NPs that can be excreted by the kidneys remain capable of targeting tumors with poor permeability. Glioblastoma multiforme, the most malignant orthotopic brain tumor, presents a unique challenge for NP delivery because of the blood-brain barrier and robust blood-tumor barrier of reactive microglia and macroglia in the tumor microenvironment...
April 2017: Nano Research
https://www.readbyqxmd.com/read/29033580/the-influence-of-vascular-endothelial-growth-factor-a-and-matrix-metalloproteinase-2-and-9-in-angiogenesis-metastasis-and-prognosis-of-endometrial-cancer
#3
REVIEW
Anna M Mahecha, Hongbo Wang
Angiogenesis (the growth of new blood vessels) is essential in most of the body's physiological processes, such as in the normal functioning of the endometrium during and after the menstrual cycle. Vascular endothelial growth factor (VEGF) and matrix metalloproteinase (MMP) are the mostly expressed angiogenic factors, especially, during the process of endometrial degeneration and remodeling. In carcinogenesis, tumor hypoxia-induced factors, through the process of "angiogenic switch", stimulate the production of angiogenic factors, particularly VEGF and MMP...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29032252/a-comparison-of-industry-leading-energy-devices-for-use-in-gynecologic-laparoscopy-articulating-enseal-versus-ligasure-energy-devices
#4
Linda-Dalal J Shiber, Daniel N Ginn, Ambareen Jan, Jeremy T Gaskins, Shan M Biscette, Resad Pasic
OBJECTIVE: To compare two laparoscopic bipolar electrosurgical devices used in total laparoscopic hysterectomy (TLH). An articulating advanced bipolar device (ENSEAL® G2, Ethicon) and an electrothermal bipolar vessel sealer (LigasureTM, Covidien) were analyzed for difference in surgeon perception of ease of instrument use and workload using the raw-Task Load Index (RTLX) scale. Secondarily, differences in operative time, estimated blood loss (EBL), and perioperative complication rates between the two devices were examined...
October 12, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/29028736/superficial-and-deep-capillary-ischemia-as-a-presenting-sign-of-retinal-vasculopathy-with-cerebral-leukoencephalopathy-and-systemic-manifestations
#5
Aaron Nagiel, Robert A Lalane, Joanna C Jen, Allan E Kreiger
PURPOSE: The aim of this study was to investigate the presenting sign of retinal vasculopathy with cerebral leukoencephalopathy and systemic manifestations, a rare autosomal dominant condition caused by mutations in the TREX1 gene, and to explore the potential efficacy of bevacizumab in preventing capillary occlusions. METHODS: Observational case report with the use of ultra-widefield fluorescein angiography, optical coherence tomography, and optical coherence tomography angiography...
October 12, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/29026413/evaluation-of-pentraxin-3-level-and-its-related-factors-in-patients-undergoing-primary-percutaneous-coronary-intervention
#6
Saeed Alipour-Parsa, Habib Haybar, Mohammad Hasan Namazi, Morteza Safi, Isa Khaheshi, Mehdi Memaryan, Amir Mohammad Eghbalnejad-Mofrad
BACKGROUND: Inflammation has an important role in the development and progression of atherosclerosis, and acute phase proteins such as pentraxin-3 (PTX3) can be deployed in determining the prognosis of coronary artery disease (CAD). So the purpose of this paper was to evaluate the PTX3 level and its related factors in patients undergoing primary percutaneous coronary intervention (PCI). METHODS: In this cross-sectional study, the PTX3 levels were determined for 100 patients with ST-elevation myocardial infarction referred to the Modarres Hospital, Tehran, Iran...
March 2017: ARYA Atherosclerosis
https://www.readbyqxmd.com/read/29025540/anatomy-and-physiology-of-the-pericardium
#7
REVIEW
Brian D Hoit
The pericardium consists of a visceral mesothelial monolayer (epicardium) that reflects over the great vessels and joins an outer, relatively inelastic fibrous parietal layer of organized collagen and elastin fibers, between which is a potential space that normally contains up to 50 mL of plasma filtrate. Although not essential for life, the pericardium serves important albeit subtle functions in the euvolemic healthy individual that become increasingly important in hypervolemic states and conditions in which the heart enlarges acutely...
November 2017: Cardiology Clinics
https://www.readbyqxmd.com/read/29025216/assisted-salvage-of-ischemic-fasciocutaneous-flap-using-adipose-derived-mesenchymal-stem-cells-in-situ-revascularization
#8
Michael H Carstens, Mauricio Mendieta, Cecilia Pérez, Esperanza Villareal, Rodolfo Garcia
Adipose-derived mesenchymal stem cells (ASCs) have been shown to produce vascular endothelial growth factor (VEGF) and can increase perfusion in patients with critical limb ischemia. We will show that this concept can be applied to augment blood flow in zones of flap ischemia. We presented a case study of a 26-year-old man with a complex hand injury covered by a reverse radial perforator fasciocutaneous flap, which developed ischemic necrosis and was treated by debridement, transplantation of ASCs to enhance vascular support, and saline dressings...
July 1, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/29024231/chimeric-thoracoacromial-artery-perforator-flap-for-one-staged-reconstruction-of-complex-pharyngoesophageal-defects-a-single-unit-experience
#9
Dajiang Song, Georgios Pafitanis, Luis Eduardo Parra Pont, Peng Yang, Isao Koshima, Yixin Zhang, Takuya Iida, Xiao Zhou, Zan Li
BACKGROUND: Circumferential hypopharyngeal defects with anterior neck skin loss often require double-stacked or chimeric flaps to achieve good surgical outcomes. The thoracoacromial artery perforator (TAAP) flap is a simple and reliable method for hypopharyngeal defect reconstruction. METHODS: From March 2012 to February 2015, 19 male patients with an average age of 62 years (range 42-81 years) underwent complex pharyngoesophageal defect reconstruction with chimeric TAAP flaps...
October 11, 2017: Head & Neck
https://www.readbyqxmd.com/read/29022983/a-tuneable-microfluidic-system-for-long-duration-chemotaxis-experiments-in-a-3d-collagen-matrix
#10
Koceila Aizel, Andrew G Clark, Anthony Simon, Sara Geraldo, Anette Funfak, Pablo Vargas, Jérôme Bibette, Danijela Matic Vignjevic, Nicolas Bremond
In many cell types, migration can be oriented towards a chemical stimulus. In mammals, for example, embryonic cells migrate to follow developmental cues, immune cells migrate toward sites of inflammation, and cancer cells migrate away from the primary tumour and toward blood vessels during metastasis. Understanding how cells migrate in 3D environments in response to chemical cues is thus crucial to understanding directed migration in normal and disease states. To date, chemotaxis in mammalian cells has been primarily studied using 2D migration models...
October 12, 2017: Lab on a Chip
https://www.readbyqxmd.com/read/29022570/arterial-stiffness-as-a-risk-factor-for-clinical-hypertension
#11
REVIEW
Michel E Safar
In patients with uncomplicated essential hypertension, cardiac output remains within normal ranges and intravascular volume is normal or low, assuming the presence of a sufficient Windkessel effect and usual resistance and compliance calculations. However, mean circulatory pressure is elevated in these patients. In addition, vascular resistance is augmented, and most importantly, the viscoelasticity of the cardiovascular system is substantially impaired. Such considerations are essential to understanding the mechanisms behind carotid-femoral arterial stiffness, a major risk factor in individuals with hypertension...
October 12, 2017: Nature Reviews. Cardiology
https://www.readbyqxmd.com/read/29022504/endothelial-and-circulating-progenitor-cells-in-hematological-diseases-and-allogeneic-hematopoietic-stem-cell-transplantation
#12
Annalisa Ruggeri, Annalisa Paviglianiti, Fernanda Volt, Chantal Kenzey, Hanadi Rafii, Vanderson Rocha, Eliane Gluckman
Circulating endothelial cells (CECs), originated form endothelial progenitors (EPCs) are mature cells which are not associated with vessel walls, and that are detached from the endothelium. Normally, they are present in insignificant amounts in the peripheral blood of healthy individuals. On the other hand, elevated CECs and EPCs levels have been reported in the peripheral blood of patients with different types of cancers and some other diseases. Consequently, CECs and EPCs represent a potential biomarker in several clinical conditions involving endothelial turnover and remodeling, such as hematological diseases...
October 12, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/29022485/prevalence-of-%C3%AE-iii-tubulin-tubb3-expression-in-human-normal-tissues-and-cancers
#13
Fermín Person, Waldemar Wilczak, Claudia Hube-Magg, Christoph Burdelski, Christina Möller-Koop, Ronald Simon, Mercedes Noriega, Guido Sauter, Stefan Steurer, Susanne Burdak-Rothkamm, Frank Jacobsen
Microtubules are multifunctional cytoskeletal proteins that are involved in crucial cellular roles including maintenance of cell shape, intracellular transport, meiosis, and mitosis. Class III beta-tubulin (βIII-tubulin, also known as TUBB3) is a microtubule protein, normally expressed in cells of neuronal origin. Its expression was also reported in various other tumor types, such as several types of lung cancer, ovarian cancer, and esophageal cancer. TUBB3 is of clinical relevance as overexpression has been linked to poor response to microtubule-targeting anti-cancer drugs such as taxanes...
October 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/29021136/distinct-angiogenic-changes-during-carcinogenesis-defined-by-novel-label-free-dark-field-imaging-in-a-hamster-cheek-pouch-model
#14
Fangyao Hu, Hannah Martin, Amy Frees Martinez, Jeffrey Everitt, Alaattin Erkanli, Walter T Lee, Mark W Dewhirst, Nirmala Ramanujam
There remain gaps in knowledge concerning how vascular morphology evolves during carcinogenesis. In this study, we imaged neovascularization by label-free dark field microscopy of a DMBA-induced hamster cheek pouch model of oral squamous cell carcinoma (SCC). Wavelength-dependent imaging revealed distinct vascular features at different imaging depths and vessel sizes. Vascular tortuosity increased significantly in high-risk lesions, while diameter decreased significantly in hyperplastic and SCC lesions. Large vessels preserved the same trends seen in the original images, whereas small vessels displayed different trends, with length and diameter increasing during carcinogenesis...
October 11, 2017: Cancer Research
https://www.readbyqxmd.com/read/29019753/imaging-of-pediatric-growth-plate-disturbances
#15
Jie C Nguyen, B Keegan Markhardt, Arnold C Merrow, Jerry R Dwek
The growth plates, or physes, are visible on virtually all images obtained in skeletally immature children. The proper function of these growth plates depends on an intricate balance between chondrocyte proliferation, which requires nourishment from the epiphyseal vessels, and chondrocyte death, which requires the integrity of the metaphyseal vessels. Therefore, injury to the growth plate (ie, direct insult) or vascular compromise on either side of the growth plate (ie, indirect insult) can cause growth plate dysfunction...
October 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29018183/a-case-of-left-renal-vein-ligation-in-a-patient-with-solitary-left-kidney-undergoing-liver-transplantation-to-control-splenorenal-shunt-and-improve-portal-venous-flow
#16
Rodrigo B Martino, Eserval Rocha Júnior, Valdano Manuel, Vinicius Rocha-Santos, Luis Augusto C D'Albuquerque, Wellington Andraus
BACKGROUND Adequate portal venous flow is required for successful liver transplantation. Reduced venous flow and blood flow 'steal' by collateral vessels are a concern, and when there is a prominent splenorenal shunt present, ligation of the left renal vein has been recommended to improve portal venous blood flow. CASE REPORT A 51-year-old man who had undergone right nephrectomy in childhood required liver transplantation for liver cirrhosis and hepatocellular carcinoma due to hepatitis C virus (HCV) infection...
October 11, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/29017522/analysis-of-plasma-multiplex-cytokines-and-increased-level-of-il-10-and-il-1ra-cytokines-in-febrile-seizures
#17
Kyungmin Kim, Byungok Kwak, Aram Kwon, Jongseok Ha, Soojin Kim, Sunwhan Bae, Jaesung Son, Soonyung Kim, Ran Lee
BACKGROUND: Febrile seizures are the most common form of childhood seizures. Fever generation involves many cytokines, including both pro- and anti-inflammatory cytokines. Some of these cytokines also induce febrile seizures. We compared cytokine production in children with a fever alone (healthy control group) and febrile seizure children group. Also, we evaluated the cytokine level of children with a fever alone and febrile seizure history. METHODS: Fifty febrile seizure patients and 39 normal control patients who visited the emergency department of Konkuk University Hospital from December 2015 to December 2016 were included in this study...
October 10, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29016521/glaucoma-diagnostic-capabilities-of-foveal-avascular-zone-parameters-using-optical-coherence-tomography-angiography-according-to-visual-field-defect-location
#18
Junki Kwon, Jaewan Choi, Joong Won Shin, Jiyun Lee, Michael S Kook
PURPOSE: To assess the diagnostic ability of foveal avascular zone (FAZ) parameters to discriminate glaucomatous eyes with visual field defects (VFDs) in different locations (central vs. peripheral) from normal eyes. PATIENTS AND METHODS: Totally, 125 participants were separated into three groups: normal (n=45), glaucoma with peripheral VFD (PVFD, n=45), and glaucoma with central VFD (CVFD, n=35). The FAZ area, perimeter, and circularity and parafoveal vessel density were calculated from optical coherence tomography angiography images...
October 9, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/29016406/visualization-of-immune-responses-in-the-cornea
#19
Victor L Perez
The eye has become a useful site for the investigation and understanding of local and systemic immune responses. The ease of access and transparency of the cornea permits direct visualization of ocular structures, blood vessels, and lymphatic vessels, allowing for the tracking of normal and pathological biological processes in real time. As a window to the immune system, we have used the eye to dissect the mechanisms of corneal inflammatory reactions that include innate and adaptive immune responses. We have identified that the ocular microenvironment regulates these immune responses by recruiting different populations of inflammatory cells to the cornea through local production of selected chemokines...
November 2017: Cornea
https://www.readbyqxmd.com/read/28991124/angiogenesis-in-the-transplanted-donor-graft-after-living-donor-liver-transplantation
#20
Dong-Hwan Jung, Sung-Hwan Moon, Soon-Jung Park, Eun Jae Kim, In Ho Jang, Cheon-Soo Park, Ji Yoon Lee, Yong-Pil Cho, Sung-Gyu Lee
BACKGROUND: There is no direct evidence for the role of angiogenesis in liver regeneration in humans. This study aimed to determine whether angiogenesis is involved in the regeneration of transplanted donor grafts in human living-donor liver transplantation (LDLT) and to examine the impact of donor graft volume on angiogenesis. METHODS: Clinical data and liver tissue characteristics were analyzed in 4 patients who received adult-to-adult LDLT with dual left lobe grafts from 2 living donors...
October 5, 2017: Transplantation
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