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https://www.readbyqxmd.com/read/28342923/giant-intracranial-aneurysms-surgical-treatment-and-risk-factors-analysis
#1
Long Xu, Xiaofeng Deng, Shuo Wang, Yong Cao, Yuanli Zhao, Dong Zhang, Yan Zhang, Rong Wang, Wei Qi, Jizong Zhao
OBJECTIVE: The surgical treatment of giant intracranial aneurysms (GIAs; diameter≥25mm) is challenging. The objective of this paper is to study the clinical outcome of GIAs treated with different surgical modalities and to analyze the factors affecting prognosis. METHODS: A consecutive series of 204 patients with GIAs who received surgical treatment in our department from 1995 to 2008 were analyzed retrospectively. The clinical outcome was evaluated with the Glasgow Outcome Scale (GOS)...
March 22, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28342702/apigenin-attenuates-oxidative-stress-and-neuronal-apoptosis-in-early-brain-injury-following-subarachnoid-hemorrhage
#2
Yuwei Han, Tingting Zhang, Jingyuan Su, Yuan Zhao, Chenchen, Wang, Xiaoming Li
Apigenin (API) is a naturally occurring plant flavone that exhibits powerful antioxidant and antiapoptosis. Oxidative stress plays an important role in the pathogenesis of early brain injury (EBI) following subarachnoid hemorrhage (SAH). The potential anti-oxidative and anti-apoptosis effects of API on EBI following SAH, however, have not been elucidated. The aim of this study was to assess whether API alleviates EBI after SAH via its anti-oxidative and anti-apoptotic effects. The endovascular puncture model was used to induce SAH and all the rats were subsequently sacrificed at 24h after SAH...
March 22, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28342700/nicotine-replacement-therapy-in-patients-with-aneurysmal-subarachnoid-hemorrhage-systematic-review-of-the-literature-and-survey-of-canadian-practice
#3
REVIEW
Ricky D Turgeon, Stephano J Chang, Charlotte Dandurand, Peter A Gooderham, Camille Hunt
Tobacco smoke increases the risk of aneurysmal subarachnoid hemorrhage (SAH), as well as complications such as vasospasm. Most patients presenting with aneurysmal SAH smoke, and many survivors continue to smoke after discharge. Neurosurgeons often hesitate to use nicotine replacement therapy (NRT) during hospitalization of patients with SAH due to concerns of inducing vasospasm. We aimed to evaluate the safety and efficacy, and patterns of use of NRT in smokers hospitalized for SAH. We performed a systematic review of MEDLINE, CENTRAL, Embase, and unpublished sources of literature to October 2016 for randomized and observational studies comparing exposure to non-exposure of smoking cessation products in the acute phase of aneurysmal SAH...
March 22, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28340207/effect-of-the-2014-2015-ebola-outbreak-on-reproductive-health-services-in-a-rural-district-of-guinea-an-ecological-study
#4
Bienvenu S Camara, Alexandre Delamou, Ermias Diro, Abdoul H Béavogui, Alison M El Ayadi, Sidikiba Sidibé, Fassou M Grovogui, Kudakwashe C Takarinda, Patrice Bouedouno, Sah D Sandouno, Junko Okumura, Mamadou D Baldé, Johan Van Griensven, Rony Zachariah
Background: The 2014/2015 Ebola outbreak was the most sustained in history. In Guinea, we compared trends in family planning, antenatal care, and institutional deliveries over the period before, during and after the outbreak. Methods: We carried out an ecological study involving all the health facilities during pre-Ebola (1 March 2013 to 28 February 2014), intra-Ebola (1 March 2014 to 28 February 2015) and post-Ebola (1 March to 31 July 2016) periods in Macenta district...
March 18, 2017: Transactions of the Royal Society of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28337226/tetramethylpyrazine-protects-against-early-brain-injury-after-experimental-subarachnoid-hemorrhage-by-affecting-mitochondrial-dependent-caspase-3-apoptotic-pathway
#5
Shaoxue Li, Xiaolan Xiao, Xiaojia Ni, Zhennan Ye, Junjie Zhao, Chunhua Hang
This study was to test the hypothesis that tetramethylpyrazine (TMP) protected against early brain injury after subarachnoid hemorrhage (SAH) by affecting the mitochondrial-dependent caspase-3 apoptotic pathway. TMP was administrated after the rats' prechiasmatic SAH mode. Animal neurobehavioral functions were assessed and the mitochondrial morphology, mitochondrial and cytoplasmic calcium, and mitochondrial membrane potential changes (Δψm) of the brain tissues were measured. The expressions of cytoplasmic cytochrome c (cyt c), second mitochondria-derived activator of caspases (Smac), and cleaved caspase-3 B-cell lymphoma 2 (bcl-2) in cells were determined and cellular apoptosis was detected...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28335640/nebivolol-attenuates-cerebral-vasospasm-both-by-increasing-endothelial-nitric-oxide-and-by-decreasing-oxidative-stress-in-an-experimental-subarachnoid-haemorrhage
#6
Mehmet Arif Aladag, Yusuf Turkoz, Hakan Parlakpinar, Mehmet Gul
OBJECTIVE: Evidence suggests that reduction of nitric oxide (NO) bioavailability due to oxidative stress plays a central role in the pathophysiology of cerebral vasospasm after subarachnoid haemorrhage (SAH). To prevent SAH-induced cerebral vasospasm, therefore we used nebivolol hydrochloride as a NO-mediated vasodilator and an antioxidant drug in an experimental rat model of SAH. MATERIALS AND METHODS: Forty female Wistar rats were divided into control, SAH, SAH plus placebo, and SAH plus nebivolol groups...
March 23, 2017: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/28332910/association-between-dietary-xanthophyll-lutein-and-zeaxanthin-intake-and-early-age-related-macular-degeneration-the-atherosclerosis-risk-in-communities-study
#7
Henry Lin, Julie A Mares, Michael J LaMonte, William E Brady, Michelle W Sahli, Ronald Klein, Barbara E K Klein, Jing Nie, Amy E Millen
PURPOSE: To examine the association between xanthophyll intake and prevalent early age-related macular degeneration (AMD) using data from the Atherosclerosis Risk in Communities Study (n = 10,295). Potential effect modification by genetic polymorphisms and biomarkers of high-density lipoprotein (HDL) metabolism was explored. METHODS: Xanthophyll intake was assessed at visit 1 (1987-1989) using food frequency questionnaires. Prevalent early AMD was assessed at visit 3 (1993-1995) via retinal photographs...
March 23, 2017: Ophthalmic Epidemiology
https://www.readbyqxmd.com/read/28331261/bilateral-traumatic-intracranial-hematomas-and-its-outcome-a-retrospective-study
#8
Sharad Pandey, Vivek Sharma, Kulwant Singh, Deepa Pandey, Mukesh Sharma, Deepak Bhanudas Patil, Neeraj Shende, Richa Singh Chauhan
The objective of this study was to evaluate the age distribution, mode of injury, type of hematomas, and their surgical outcome in patients with bilateral traumatic head injuries. The present study included 669 cases of traumatic head injury who presented at the neurosurgery emergency out of which 94 cases had bilateral head injuries from the period of August 2009 to April 2014. The data from the hospital computerized database were retrospectively analysed. Cases of bilateral traumatic head injury included 94 patients out of which 88...
February 2017: Indian Journal of Surgery
https://www.readbyqxmd.com/read/28330417/involvement-of-nox2-and-nox4-nadph-oxidases-in-early-brain-injury-after-subarachnoid-hemorrhage
#9
Li Zhang, Zhen Li, Dongxia Feng, Haitao Shen, Xiaodi Tian, Haiying Li, Zhong Wang, Gang Chen
Oxidative stress is responsible for a poor prognosis of subarachnoid hemorrhage (SAH) patients. Nox2 has been shown to participate in SAH-induced early brain injury (EBI). Nox4 is another major subtype of Nox family widely expressed in CNS. Here, we investigated the role of Nox4 and whether there was a synergistic effect of Nox2 and Nox4 in SAH-induced EBI. Clinical brain biopsies of four patients with traumatic brain injury and perihematomal brain tissue from six subjects with SAH were examined. Gp91ds-tat (a specific inhibitor of Nox2), GKT137831 (a specific inhibitor of Nox4), and apocynin (a non-specific Nox inhibitor) were used to test the role of Nox2 and Nox4...
March 22, 2017: Free Radical Research
https://www.readbyqxmd.com/read/28330242/phylogenetical-coherence-of-pseudomonas-in-unexplored-soils-of-himalayan-region
#10
Stuti Sah, Rajni Singh
Pseudomonas, an enormously diverse genus of the γ-Proteobacteria, is an important member of soil microbial communities. In this study, genetic heterogeneity and plant growth promotory property of Pseudomonas was compared within the group Pseudomonas sensu stricto isolated from the lesser explored niches of Himalayan region. A significant difference (P < 0.001 in total Pseudomonas count) was observed among the six types of soil samples collected from oak forest, fine forest, and agricultural soil. The highest numbers of bacteria were isolated from oak forest soil followed by pine forest soil and agricultural soil...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28327974/intracranial-aneurysm-parameters-for-predicting-a-future-subarachnoid-hemorrhage-a-long-term-follow-up-study
#11
Seppo Juvela, Miikka Korja
BACKGROUND: Retrospective studies have suggested that aneurysm morphology is a risk factor for subarachnoid hemorrhage (SAH). OBJECTIVE: To investigate whether various morphological indices of unruptured intracranial aneurysms (UIAs) predict a future rupture. METHODS: A total of 142 patients with UIAs diagnosed between 1956 and 1978 were followed prospectively until SAH, death, or the last contact. Morphological UIA indices from standard angiographic projections were measured at baseline and adjusted in multivariable Cox proportional hazards regression analyses for established risk factors for SAH...
January 10, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28327595/x-linked-inhibitor-of-apoptosis-inhibits-apoptosis-and-preserves-the-blood-brain-barrier-after-experimental-subarachnoid-hemorrhage
#12
Cheng Gao, Hongwei Yu, Cong Yan, Wenyang Zhao, Yao Liu, Dongdong Zhang, Jingwei Li, Nan Liu
Early brain injury following subarachnoid hemorrhage (SAH) strongly determines the prognosis of patients suffering from an aneurysm rupture, and apoptosis is associated with early brain injury after SAH. This study was designed to explore the role of X-linked inhibitor of apoptosis (XIAP) in early brain injury following SAH. The expression of XIAP was detected using western blotting and real-time RT-PCR in an autologous blood injection model of SAH. We also studied the role of XIAP in early brain injury and detected apoptosis-related proteins...
March 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28327554/ppar%C3%AE-%C3%AE-a-novel-regulator-for-vascular-smooth-muscle-cells-phenotypic-modulation-and-vascular-remodeling-after-subarachnoid-hemorrhage-in-rats
#13
Hongrong Zhang, Li Jiang, Zongduo Guo, Jianjun Zhong, Jingchuan Wu, Junchi He, Han Liu, Zhaohui He, Haitao Wu, Chongjie Cheng, Xiaochuan Sun
Cerebral vascular smooth muscle cell (VSMC) phenotypic switch is involved in the pathophysiology of vascular injury after aneurysmal subarachnoid hemorrhage (aSAH), whereas the molecular mechanism underlying it remains largely speculative. Peroxisome proliferator-activated receptor β/δ (PPARβ/δ) has been implicated to modulate the vascular cells proliferation and vascular homeostasis. In the present study, we investigated the potential role of PPARβ/δ in VSMC phenotypic switch following SAH. Activation of PPARβ/δ by GW0742 and adenoviruses PPARβ/δ (Ad-PPARβ/δ) significantly inhibited hemoglobin-induced VSMC phenotypic switch...
March 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28322077/enteral-nutrition-increases-interstitial-brain-glucose-levels-in-poor-grade-subarachnoid-hemorrhage-patients
#14
Mario Kofler, Alois J Schiefecker, Ronny Beer, Maxime Gaasch, Paul Rhomberg, John Stover, Bettina Pfausler, Claudius Thomé, Erich Schmutzhard, Raimund Helbok
Low brain tissue glucose levels after acute brain injury are associated with poor outcome. Whether enteral nutrition (EN) reliably increases cerebral glucose levels remains unclear. In this retrospective analysis of prospectively collected observational data, we investigate the effect of EN on brain metabolism in 17 poor-grade subarachnoid hemorrhage (SAH) patients undergoing cerebral microdialysis (CMD) monitoring. CMD-values were obtained hourly. A nutritional intervention was defined as the clinical routine administration of EN without supplemental parenteral nutrition...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28321069/cerebral-salt-wasting-syndrome-and-inappropriate-antidiuretic-hormone-syndrome-after-subarachnoid-hemorrhaging
#15
Hanako Nakajima, Hiroshi Okada, Kazuki Hirose, Toru Murakami, Yayoi Shiotsu, Mayuko Kadono, Mamoru Inoue, Goji Hasegawa
Hyponatremia is a common finding after subarachnoid hemorrhaging (SAH) and can be caused by either cerebral salt-wasting syndrome (CSWS) or syndrome of inappropriate antidiuretic hormone (SIADH). Distinguishing between these two entities can be difficult because they have similar manifestations, including hyponatremia, serum hypo-osmolality, and high urine osmolality. We herein report the case of a 60-year-old man who suffered from SAH complicated by hyponatremia. During his initial hospitalization, he was diagnosed with CSWS...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28320134/post-hemorrhagic-hydrocephalus-recent-advances-and-new-therapeutic-insights
#16
REVIEW
Qianwei Chen, Zhou Feng, Qiang Tan, Jing Guo, Jun Tang, Liang Tan, Hua Feng, Zhi Chen
Post-hemorrhagic hydrocephalus (PHH), also referred to as progressive ventricular dilatation, is caused by disturbances in cerebrospinal fluid (CSF) flow or absorption following hemorrhage in the brain. As one of the most serious complications of neonatal/adult intraventricular hemorrhage (IVH), subarachnoid hemorrhage (SAH), and traumatic brain injury (TBI), PHH is associated with increased morbidity and disability of these events. Common sequelae of PHH include neurocognitive impairment, motor dysfunction, and growth impairment...
April 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28316868/a-case-of-ruptured-blood-blister-like-aneurysm-treated-with-pipeline-embolization-device-clinical-significance-of-fetal-type-posterior-communicating-artery
#17
Ki-Su Park, Dong-Hun Kang, Won-Soo Son, Jaechan Park, Young-Sun Kim, Byung Moon Kim
Blood-blister like aneurysms (BBAs) are challenging lesions because of their wide fragile neck. Flow-diverting stents (FDSs), such as the Pipeline Embolization Device (PED), have been applied to treat BBAs less amenable to more established techniques of treatment. However, the use of FDSs, including the PED, in acute subarachnoid hemorrhage (SAH) still remains controversial. We report a case of aneurysm regrowth following PED application for a ruptured BBA that overlapped the origin of the dominant posterior communicating artery (PCoA), which was successfully treated after coil trapping of the origin of the fetal-type PCoA...
March 2017: Neurointervention
https://www.readbyqxmd.com/read/28314740/dual-recognition-of-chromatin-and-microtubules-by-incenp-is-important-for-mitotic-progression
#18
Michael S Wheelock, David J Wynne, Boo Shan Tseng, Hironori Funabiki
The chromosomal passenger complex (CPC), composed of inner centromere protein (INCENP), Survivin, Borealin, and the kinase Aurora B, contributes to the activation of the mitotic checkpoint. The regulation of CPC function remains unclear. Here, we reveal that in addition to Survivin and Borealin, the single α-helix (SAH) domain of INCENP supports CPC localization to chromatin and the mitotic checkpoint. The INCENP SAH domain also mediates INCENP's microtubule binding, which is negatively regulated by Cyclin-dependent kinase-mediated phosphorylation of segments flanking the SAH domain...
March 17, 2017: Journal of Cell Biology
https://www.readbyqxmd.com/read/28314170/-pseudo-subarachnoid-hemorrhage-sign-on-early-brain-computed-tomography-in-out-of-hospital-cardiac-arrest-survivors-receiving-targeted-temperature-management
#19
Byung Kook Lee, Youn-Jung Kim, Seung Mok Ryoo, Su Jin Kim, Dong Hun Lee, Kyung Woon Jeung, Won Young Kim
PURPOSE: Newly updated guidelines suggest brain computed tomography for out-of-hospital cardiac arrest survivors to identify a neurologic cardiac arrest cause. We hypothesized that the "pseudo-subarachnoid hemorrhage" (p-SAH) sign in cardiac arrest survivors is associated with poor outcome. MATERIALS AND METHODS: We retrospectively evaluated the registries of 2 tertiary hospitals, identifying 836 adult (≥18 years) patients achieving return of spontaneous circulation after out-of-hospital cardiac arrest...
February 16, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28303209/mixed-aneurysm-a-new-proposed-nomenclature-for-a-rare-condition
#20
Cassiano U Crusius, Paulo Henrique P de Aguiar, Marcelo U Crusius
BACKGROUND: Mixed intracranial aneurysms are vascular lesions appearing in the ruptured saccular aneurysms whose blood is contained by perivascular tissues forming another cavity called pseudoaneurysm. All cases until now have been reported in the literature with subarachnoid hemorrhage. CASE DESCRIPTION: A 65-year-old woman presented with multiple brain aneurysms with no history of subarachnoid hemorrhage. Endovascular treatment was chosen for left-sided aneurysms [lateral carotid wall (LCW) and posterior communicating (PCom)]...
2017: Surgical Neurology International
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