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https://www.readbyqxmd.com/read/29793161/exposure-of-microcystis-aeruginosa-to-hydrogen-peroxide-and-titanium-dioxide-under-visible-light-conditions-modeling-the-impact-of-hydrogen-peroxide-and-hydroxyl-radical-on-cell-rupture-and-microcystin-degradation
#1
Che-Wei Chang, Xiangchen Huo, Tsair-Fuh Lin
The aims of this study are to evaluate, under visible light conditions, the ability of H2 O2 and TiO2 to produce OH, their quantitative impacts on the cell integrity of Microcystis, and the subsequent release and degradation of microcystins (MCs). A sequential reaction model was developed, including one sub-model to simulate the rupture kinetics for cell integrity of Microcystis, and another to describe the release and degradation of MCs. For cell rupture, the dual-oxidant Delayed Chick-Watson model (DCWM) and dual-oxidant Hom model (HM) were first proposed and developed, giving excellent simulation results of cell rupture kinetics...
May 14, 2018: Water Research
https://www.readbyqxmd.com/read/29792135/modified-ldl-immune-complexes-and-cardiovascular-disease
#2
Maria F Lopes-Virella, Gabriel Virella
Modified forms of LDL, both spontaneously formed in the organism or prepared in the laboratory, are immunogenic. As a consequence, antigen-antibody complexes (immune complexes, IC) formed in vivo can be measured in the peripheral blood, and their levels are strong predictors of cardiovascular disease (CVD). It has been possible to generate antibodies that recognize different LDL modifications, allowing the analysis of circulating IC constitution. Clinical studies showed that the antigenic constitution of the IC has a modulating effect on the development of CVD...
May 23, 2018: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/29792096/neonatal-outcome-in-preterm-deliveries-before-34-week-gestation-the-influence-of-the-mechanism-of-labor-onset
#3
Sara Pinto, Maria Filipa Malheiro, Ana Vaz, Teresa Rodrigues, Nuno Montenegro, Hercília Guimarães
PURPOSE: To evaluate neonatal outcomes in preterm infants with less than 34 weeks after spontaneous labor, preterm premature rupture of membranes (PPROM) or iatrogenic delivery and to clarify whether the mechanism of labor onset is a risk factor for adverse short-term neonatal outcome. METHODS: We performed a retrospective case-control study, which included 266 preterm newborns with less than 34-week gestation, between 2011 and 2015. Neonatal outcomes were compared according to the mechanism of labor onset...
May 23, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29791997/letter-to-the-editor-regarding-rupture-risk-of-cerebral-arteriovenous-malformations-during-pregnancy-and-puerperium-a-single-center-experience-and-pooled-data-analysis
#4
Ximeng Yang, Gengfan Ye, Daming Wang
No abstract text is available yet for this article.
June 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29791200/evaluation-of-mandibular-odontogenic-keratocyst-and-ameloblastoma-by-panoramic-radiograph-and-computed-tomography
#5
Daniel Berretta Moreira Alves, Fabrício Mesquita Tuji, Fábio Abreu Alves, André Caroli Rocha, Alan Roger Dos Santos-Silva, Pablo Agustin Vargas, Márcio Ajudarte Lopes
OBJECTIVE: The purpose of this study was to describe and compare the main imagenological features of mandibular ameloblastomas and odontogenic keratocyst (OKC) using panoramic radiograph (PR) and computed tomography (CT). METHODS: The sample consisted of 9 cases of ameloblastomas and 9 cases of OKC. PR and CT images were analyzed according to shape, internal structure, borders, associated unerupted tooth, root resorption, expansion and perforation of cortical bones...
May 23, 2018: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/29790685/f2-isoprostanes-and-f4-neuroprostanes-as-markers-of-intracranial-aneurysm-development
#6
Anna Syta-Krzyżanowska, Iwona Jarocka-Karpowicz, Jan Kochanowicz, Grzegorz Turek, Robert Rutkowski, Krzysztof Gorbacz, Zenon Mariak, Elżbieta Skrzydlewska
BACKGROUND: Intracranial aneurysms are common, occurring in about 1-2% of the population. Saccular aneurysm is a pouch-like pathological dilatation of an intracranial artery that develops when the cerebral artery wall becomes too weak to resist hemodynamic pressure and distends. OBJECTIVES: The aim of this study was to determine whether the development of intracranial aneurysms and subarachnoid hemorrhage (SAH) affects neuronal phospholipid metabolism, and what influence different invasive treatments have on brain free radical phospholipid metabolism...
April 24, 2018: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/29790326/-the-quality-of-life-as-perceived-by-older-people-results-of-a-phenomenological-study
#7
Silvia Grosso, Elisa Ambrosi, Carla Benagli, Luigina Mortari, Federica Canzan
INTRODUCTION: Elderly Quality of life (QoL) is vulnerable because of the decline in physical and mental capacity, discharge from work, rupture of the family and isolation. Many QoL Scales are made for adults: there is little research investigating how older people perceive QOL. AIM: This study aims to explore and understand the perceptions that older people have about their QOL. METHOD: A qualitative research hermeneutics-phenomenological was done...
January 2018: Professioni Infermieristiche
https://www.readbyqxmd.com/read/29790066/treatment-and-outcome-of-thrombosed-aneurysms-of-the-middle-cerebral-artery-institutional-experience-and-a-systematic-review
#8
REVIEW
Alba Scerrati, Giovanni Sabatino, Giuseppe Maria Della Pepa, Alessio Albanese, Enrico Marchese, Alfredo Puca, Alessandro Olivi, Carmelo Lucio Sturiale
Thrombosed aneurysms of the middle cerebral artery (MCA) usually show large dimension and complex morphology with neck sclerosis and perforating vessels originating from the sac. Only limited experiences from case reports or small mixed series including thrombosed aneurysms in different locations are available in literature. To systematically review all the pertinent literature, a comprehensive literature review with the search terms "MCA, aneurysm, and thrombosis" and a pooled analysis including our institutional series were performed...
May 22, 2018: Neurosurgical Review
https://www.readbyqxmd.com/read/29789903/stabilization-of-symptomatic-carotid-atherosclerotic-plaques-by-statins-a-clinico-pathological-analysis
#9
Takao Konishi, Naohiro Funayama, Tadashi Yamamoto, Daisuke Hotta, Ryota Nomura, Yusuke Nakagaki, Takeo Murahashi, Kenji Kamiyama, Tetsuyuki Yoshimoto, Takeshi Aoki, Shinya Tanaka
Human and animal studies have revealed a stabilization of atherosclerotic plaques by statins. However, the stabilization of human carotid plaques has not been thoroughly described pathologically. This analysis explored the relationship between statin therapy and plaque stability in carotid endarterectomy (CEA) specimens. We analyzed specimens harvested between May 2015 and February 2017, from 79 consecutive patients presenting with > 70% carotid artery stenoses, of whom 66 were untreated (group 1) and 13 treated (group 2) with a statin...
May 22, 2018: Heart and Vessels
https://www.readbyqxmd.com/read/29789872/endovascular-thrombectomy-for-large-vessel-occlusion-strokes-with-preexisting-intracranial-aneurysms
#10
Tengfei Zhou, Tianxiao Li, Liangfu Zhu, Ziliang Wang, Weixing Bai, Jiangyu Xue, Guang Feng
OBJECTIVE: This study aimed to investigate the safety of endovascular thrombectomy in acute ischemic stroke with preexisting intracranial aneurysms. METHODS: Patients with acute ischemic stroke due to large-artery occlusion combined with intracranial aneurysms, who received endovascular treatment, were analyzed retrospectively, and the procedure-related data were recorded. RESULTS: Among the 124 patients who suffered acute large-artery occlusion and received endovascular recanalization therapy, intracranial aneurysms were found in seven patients (5...
May 22, 2018: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/29789591/a-study-of-wound-repair-in-dictyostelium-cells-by-using-novel-laserporation
#11
Mst Shaela Pervin, Go Itoh, Md Shahabe Uddin Talukder, Koushiro Fujimoto, Yusuke V Morimoto, Masamitsu Tanaka, Masahiro Ueda, Shigehiko Yumura
We examined the mechanism of cell membrane repair in Dictyostelium cells by using a novel laser-based cell poration method. The dynamics of wound pores opening and closing were characterized by live imaging of fluorescent cell membrane proteins, influx of fluorescent dye, and Ca2+ imaging. The wound closed within 2-4 sec, depending on the wound size. Cells could tolerate a wound size of less than 2.0 µm. In the absence of Ca2+ in the external medium, the wound pore did not close and cells ruptured. The release of Ca2+ from intracellular stores also contributed to the elevation of cytoplasmic Ca2+ but not to wound repair...
May 22, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29789550/neutrophil-extracellular-traps-promote-macrophage-pyroptosis-in-sepsis
#12
Linsong Chen, Yanfeng Zhao, Dengming Lai, Peng Zhang, Yang Yang, Yuehua Li, Ke Fei, Gening Jiang, Jie Fan
In response to infection, polymorphonuclear neutrophils (PMN) are recruited in the infectious sites, and employ three major strategies to fight against the microbes including phagocytosis, degranulation, and neutrophil extracellular traps (NETs). NETs are a meshwork of chromatin fibers mixed with granule-derived antimicrobial peptides and enzymes, which trap and kill the bacteria extracellularly. In this study, by using a mouse sepsis model, we identified a novel mechanism by which NETs induce macrophage (Mϕ) pyroptosis, a caspase-1-dependent regulated cell death...
May 22, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29789177/hematuria-as-the-only-symptom-at-initial-presentation-of-hypovolemic-shock-caused-by-ruptured-renal-arteriovenous-malformations
#13
Yi-Jui Chang, Chu-Chung Chou, Chin-Fu Chang, Yan-Ren Lin
Gross hematuria is a very common complaint in emergency departments and outpatient clinics. Globally, the incidence of hematuria is 4 per 1000 patients per year. Infection, urolithiasis, and neoplasm are the most common etiologies. However, hematuria rarely causes hypovolemic shock or an emergent, life-threatening condition at the initial presentation. In this report, we describe the case of a 64-year-old man who suffered a life-threatening gross hematuria in a very short time due to ruptured renal arteriovenous malformations (AVMs)...
May 20, 2018: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29789117/hemoperitoneum-due-to-delayed-gallbladder-rupture-after-abdominal-trauma
#14
Noelia Ibañez, Alida González, Pablo Ramirez, Pascual Parrilla
No abstract text is available yet for this article.
May 19, 2018: Cirugía Española
https://www.readbyqxmd.com/read/29789000/spontaneous-splenic-rupture-complicating-primary-varicella-zoster-infection-a-case-report
#15
Aarthy Uthayakumar, David Harrington
BACKGROUND: Primary varicella zoster virus (VZV) infection is a common illness, predominantly affecting children. Its course is typically benign, although severe complications have been described. Splenic rupture is an extremely rare and potentially fatal complication of primary VZV infection, with only a handful of cases reported in the literature. CASE PRESENTATION: A 32-year-old Romanian man with no significant past medical history, presented with a 2 day history of sudden onset, worsening generalised abdominal pain and a 1 day history of vomiting...
May 22, 2018: BMC Research Notes
https://www.readbyqxmd.com/read/29788813/de-novo-aneurysm-formation-of-a-feeder-artery-after-embolization-of-a-dural-arteriovenous-fistula-and-rupture-during-second-embolization
#16
Shouyuan Sun, Yongping Ji, Wenjun Ji, Aihua Liu, Zhongxue Wu
Objective Hemorrhage during embolization of dural arteriovenous fistula (DAVF) is a rare but devastating complication. This study was undertaken to analyze the causes of hemorrhage and avoid complication. Methods The clinical data of a case of DAVF with hemorrhagic complication were retrospectively collected and analyzed. Results The patient in this case presented with DAVF and two de novo aneurysms of a feeder artery after the first embolization. One de novo aneurysm ruptured during the second embolization of the DAVF because of hemodynamic change...
January 1, 2018: Interventional Neuroradiology
https://www.readbyqxmd.com/read/29788502/are-fetal-type-posterior-cerebral-arteries-associated-with-an-increased-risk-of-posterior-communicating-artery-aneurysms
#17
Peeraphong Thiarawat, Behnam Rezai Jahromi, Danil A Kozyrev, Patcharin Intarakhao, Mario K Teo, Joham Choque-Velasquez, Mika Niemelä, Juha Hernesniemi
BACKGROUND: Fetal-type posterior cerebral arteries (F-PCAs) might result in alterations in hemodynamic flow patterns and may predispose an individual to an increased risk of posterior communicating artery aneurysms (PCoAAs). OBJECTIVE: To determine the association between PCoAAs and the presence of ipsilateral F-PCAs. METHODS: We retrospectively reviewed the radiographic findings from 185 patients harboring 199 PCoAAs that were treated at our institution between 2005 and 2015...
May 21, 2018: Neurosurgery
https://www.readbyqxmd.com/read/29788334/microsurgical-resection-of-ruptured-large-left-temporo-occipital-arteriovenous-malformation-3-dimensional-operative-video
#18
Chun-Yu Cheng, Rakshith Shetty, Laligam N Sekhar
A 59-yr-old man presented with intraventricular hemorrhage and was found to have a large temporo-occipital arteriovenous malformation (AVM), Spetzler-Martin grade 4. The preoperative intra-arterial digital subtraction angiography (IADSA) showed the AVM was 4 × 4 cm2, had superficial and deep venous drainage, and was fed by multiple branches of the posterior cerebral artery and middle cerebral artery. Preoperative embolization was done in 4 stages. He underwent a left temporo-occipital craniotomy, mastoidectomy, and retrosigmoid craniotomy with a posterior temporal approach...
May 18, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29788241/microsurgical-treatment-of-distal-anterior-cerebral-artery-aneurysms-3-dimensional-operative-video
#19
Vijay Agarwal, Daniel L Barrow
Selecting appropriate patient position for surgery must take into consideration a variety of factors. For an interhemispheric approach to distal anterior cerebral artery (DACA) aneurysms, the patient may be positioned with the head either horizontal or vertical with respect to the floor. We preferentially place the patient in the supine position with the shoulder elevated and the head turned parallel to the floor with the side of the approach down and the vertex tilted 45° up. In this way, gravity is utilized to allow the right frontal lobe to fall away from the falx, eliminating the need for retraction...
May 18, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29787604/laparoscopic-uterine-surgery-as-a-risk-factor-for-uterine-rupture-during-pregnancy
#20
An-Shine Chao, Yao-Lung Chang, Lan-Yan Yang, Angel Chao, Wei-Yang Chang, Sheng-Yuan Su, Chin-Jung Wang
The incidence of uterine rupture through a previous cesarean scar (CS) is declining as a result of a lower parity and fewer options for vaginal birth after cesarean. However, uterine ruptures attributable to other causes that traumatize the myometrium are on the rise. To determine whether changes in the causes of uterine rupture had occurred in recent years, we retrospective retrieved the clinical records of all singletons with uterine rupture observed in the delivery room of a Taiwanese tertiary obstetric center over a 15-year period...
2018: PloS One
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