keyword
MENU ▼
Read by QxMD icon Read
search

PRES

keyword
https://www.readbyqxmd.com/read/28527174/cerebral-venous-sinus-thrombosis-and-posterior-reversible-encephalopathy-syndrome-coexisting-in-a-woman-a-rare-coincidence
#1
Surekha Dabla, Himanshu Juneja, Anubha Garg, Renu Bansal, Surender Kumar
Cerebral venous sinus thrombosis (CVST) and posterior reversible encephalopathy syndrome (PRES) are two rare diseases which may present with similar symptoms and signs. We report a case with coexisting PRES and CVST in a 34 years old postpartum female presented with multiple episodes of generalized seizures and bilateral vision loss after delivery. MRI brain and venography revealed left transverse sinus, sigmoid sinus and internal cerebral vein thrombosis with vasogenic edema in bilateral parieto-occipital, right temporal and left frontal area, which was suggestive of posterior reversible encephalopathy syndrome (PRES)...
April 2017: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/28525567/saccadic-eye-movements-and-attentional-control-in-alzheimer-s-disease
#2
Nicolas Noiret, Nicolas Carvalho, Éric Laurent, Gilles Chopard, Mickaël Binetruy, Magali Nicolier, Julie Monnin, Eloi Magnin, Pierre Vandel
Objective: Several studies have demonstrated saccadic eye movement (SEM) abnormalities in Alzheimer's disease (AD) when patients performed prosaccade (PS) and antisaccade (AS) tasks. Some studies have also showed that SEM abnormalities were correlated with dementia rating tests such as the Mini Mental State Evaluation (MMSE). Therefore, it has been suggested that SEMs could provide useful information for diagnosis. However, little is known about predictive saccades (PreS)-saccades triggered before or very quickly after stimuli appearance-and their relationships with cognition in AD...
May 19, 2017: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
https://www.readbyqxmd.com/read/28516363/posterior-reversible-encephalopathy-syndrome-presenting-in-the-anterior-circulation-with-malignant-intracranial-hypertension-requiring-surgical-decompression-a-case-report-and-literature-review
#3
S Hernández-Durán, A Barrantes-Freer, V Rohde, C von der Brelie
Posterior reversible encephalopathy syndrome (PRES) is thought to result from endothelial dysfunction and breakdown of the blood-brain barrier with subsequent vasogenic edema. Abrupt hypertension has been identified as one of its risk factors. We present a rare case of PRES in the anterior circulation with sudden onset of left hemiparesis and rapid neurological deterioration on the basis of hypertensive crisis. Due to refractory intracranial hypertension, the patient required emergent right decompressive craniectomy...
May 17, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28513915/impact-of-a-determinant-mutations-on-detection-of-hepatitis-b-surface-antigen-hbsag-in-hbv-strains-from-chinese-patients-with-occult-hepatitis-b
#4
Xiangyan Huang, Chenyun Ma, Qiang Zhang, Qingfen Shi, Tao Huang, Chao Liu, Jie Li, F Blaine Hollinger
This study was designed to detect mutations that occur within the "a" determinant in the S gene of the hepatitis B virus (HBV) in patients with occult hepatitis B (OHB), and to analyze the influence of these mutations on expression and reactivity of the hepatitis B surface antigen (HBsAg). Twenty-three certified OHB samples were compared to 32 HBsAg positive samples from patients with chronic hepatitis B. The median HBV DNA levels in the OHB group were significantly lower than those in the control group (p < 0...
May 17, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28508977/thrombotic-microangiopathy-caused-by-interferon-%C3%AE-1b-for-multiple-sclerosis-a-case-report
#5
Haruomi Nishio, Tatsuo Tsukamoto, Takeshi Matsubara, Yoichiro Okada, Ryosuke Takahashi, Motoko Yanagita
A 41-year-old man with a history of multiple sclerosis (MS) developed thrombotic microangiopathy after taking interferon β-1b for 10 years. Although the relapse of his MS was well controlled under normal blood pressure, he had persistent nausea, anorexia, gait disturbance and visual disorder 1 month before admission. He showed lethargy and high blood pressure (180/102 mmHg). Laboratory test results revealed anemia and thrombocytopenia, elevated LDH and renal dysfunction. Urinary dipstick showed a 2+ result for proteinuria and 3+ for hematuria...
November 2016: CEN Case Reports
https://www.readbyqxmd.com/read/28500543/impact-of-spin-label-rigidity-on-extent-and-accuracy-of-distance-information-from-pre-data
#6
K A Schnorr, D B Gophane, C Helmling, E Cetiner, K Pasemann, B Fürtig, A Wacker, N S Qureshi, M Gränz, D Barthelmes, H R A Jonker, E Stirnal, S Th Sigurdsson, H Schwalbe
Paramagnetic relaxation enhancement (PRE) is a versatile tool for NMR spectroscopic structural and kinetic studies in biological macromolecules. Here, we compare the quality of PRE data derived from two spin labels with markedly different dynamic properties for large RNAs using the I-A riboswitch aptamer domain (78 nt) from Mesoplamsa florum as model system. We designed two I-A aptamer constructs that were spin-labeled by noncovalent hybridization of short spin-labeled oligomer fragments. As an example of a flexible spin label, (Ureido)U-TEMPO was incorporated into the 3' terminal end of helix P1 while, the recently developed rigid spin-label Çm was incorporated in the 5' terminal end of helix P1...
May 12, 2017: Journal of Biomolecular NMR
https://www.readbyqxmd.com/read/28494953/analysis-of-o2-binding-sites-in-proteins-using-gas-pressure-nmr-spectroscopy-outer-surface-protein-a
#7
Takahiro Kawamura, Takuro Wakamoto, Soichiro Kitazawa, Shun Sakuraba, Tomoshi Kameda, Ryo Kitahara
Internal cavities in proteins produce conformational fluctuations and enable the binding of small ligands. Here, we report a NMR analysis of O2-binding sites by O2-induced paramagnetic relaxation enhancements (PREs) on amide groups of proteins in solution. Outer surface protein A contains a nonglobular single-layer β-sheet that connects the N- and C-terminal globular domains. Several cavities have been observed in both domains of the crystallized protein structure. The receptor-binding sites are occluded and line the largest cavity of the C-terminal domain...
May 9, 2017: Biophysical Journal
https://www.readbyqxmd.com/read/28487791/a-horned-viper-bite-victim-with-pres
#8
Ahmed Mustafa Ibrahim, Tarek Talaat ElSefi, Maha Ghanem, Akram Muhammad Fayed, Nesreen Adel Shaban
Neurological complications of snake bites have been well documented in the literature as neuromuscular paralysis and cerebrovascular complications; posterior reversible encephalopathy syndrome was rarely described. A 23-year-old lady presented near full term of her pregnancy with a horned snake Cerastes cerastes bite; after successful delivery she started complaining of altered mental status and visual disturbance with ulceration over the site of the snake bite. On admission, the patient had Glasgow Coma Score of 12, blood pressure 130/80 mmHg, temperature 38°C, sinus tachycardia at 120 beats per minute, severe dehydration, and reduction in visual acuity to "hand motion" in both eyes with poor light projection and sluggish pupillary reactions...
2017: Case Reports in Neurological Medicine
https://www.readbyqxmd.com/read/28473920/posterior-reversible-encephalopathy-syndrome-pres
#9
Sreenivasa Rao Sudulagunta, Mahesh Babu Sodalagunta, Monica Kumbhat, Aravinda Settikere Nataraju
Posterior reversible encephalopathy syndrome (PRES) is a clinico-radiological syndrome characterized by a headache, seizures, altered mental status and visual loss and characterized by white matter vasogenic edema affecting the posterior occipital and parietal lobes of the brain predominantly. This clinical syndrome is increasingly recognized due to improvement and availability of brain imaging specifically magnetic resonance imaging (MRI). A 35-year-old female with the history of unsafe abortion and massive blood transfusion 10 days ago was brought to the emergency room with three episodes of generalized tonic-clonic seizures, urinary incontinence and altered sensorium since 3 hours...
April 2017: Oxford Medical Case Reports
https://www.readbyqxmd.com/read/28465499/posterior-reversible-encephalopathy-syndrome-after-orthotopic-heart-transplantation-a-case-report
#10
Rigoberto Ramirez, Preetham Reddy Muskula, Mark P Everley
BACKGROUND Calcineurin inhibitor-induced posterior reversible encephalopathy syndrome (PRES) is well described in liver and kidney transplant patients, but there is a paucity of data in heart transplant patients. PRES syndrome in the setting of heart transplantation can occur as early as 5 days following transplantation. CASE REPORT A 32-year-old woman who had recently undergone orthotopic heart transplantation developed headaches, visual disturbances, and generalized tonic clonic seizures 5 days after initiating anti-rejection therapy (tacrolimus, mycophenolate, and prednisone)...
May 3, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28464556/polyimidazolium-salts-robust-catalysts-for-the-cycloaddition-of-carbon-dioxide-into-carbonates-that-operate-at-atmospheric-pres-sure-under-solvent-free-conditions
#11
Felix Daniel Bobbink, Wei Zhong, Zhaofu Fei, Paul J Dyson
There is growing interest in sustainable heterogeneous catalysts based on organic polymers. Here, we describe a series of polyimidazolium salt catalysts, prepared from the direct reaction of arene-bridged bis- and tris-alkyl halides with trimethylsilylimidazole. The polyimidazolium salts were characterized by spectroscopic and analytical techniques and it was found that their morphology and porosity could be controlled by adjusting the steric parameters of the spacer in the alkyl-halide starting materials. Moreover, the polymers are excellent heterogeneous organocatalysts for the cycloaddition of CO2 to epoxides to afford cyclic carbonates at atmospheric pressure under solvent-free conditions...
May 2, 2017: ChemSusChem
https://www.readbyqxmd.com/read/28461335/mechanism-of-ubiquitin-chain-synthesis-employed-by-a-hect-ubiquitin-ligase
#12
Michael E French, Julian L Klosowiak, Aaron Aslanian, Steven I Reed, John R Yates, Tony Hunter
Homologous to E6AP Carboxyl Terminus (HECT) ubiquitin (Ub) ligases (E3s) are a large class of enzymes that bind to their substrates and catalyze ubiquitination through the formation of a Ub thioester intermediate. The mechanisms by which these E3s assemble polyubiquitin chains on their substrates remain poorly defined. We report here that the Nedd4 family HECT E3, WWP1, assembles substrate-linked Ub chains containing K63, K48, and K11 linkages (K63 > K48 > K11). Our results demonstrate that WWP1 catalyzes the formation of Ub chains through a sequential addi-tion mechanism, in which Ub monomers are trans-ferred in a successive fashion to the substrate, and that ubiquitination by WWP1 requires the pres-ence of a low-affinity, noncovalent Ub-binding site within the HECT domain...
May 1, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28456915/reversible-cerebral-vasoconstriction-syndrome-recognition-and-treatment
#13
REVIEW
Cecilia Cappelen-Smith, Zeljka Calic, Dennis Cordato
Reversible cerebral vasoconstriction syndrome (RCVS) is a rare but increasingly recognized disorder with over 500 cases published in the literature. The condition is characterized by recurrent severe thunderclap headaches with or without other neurological symptoms and diffuse segmental narrowing of the cerebral arteries which is reversible within 3 months. RCVS may occur spontaneously but in over 50% of cases, it is associated with various other conditions, including vasoactive medications or illicit drugs and the post-partum state...
June 2017: Current Treatment Options in Neurology
https://www.readbyqxmd.com/read/28456864/a-randomized-controlled-clinical-trial-to-evaluate-the-immunogenicity-of-a-pres-s-hepatitis-b-vaccine-sci-b-vac%C3%A2-as-compared-to-engerix-b-%C3%A2-among-vaccine-na%C3%A3-ve-and-vaccine-non-responder-dialysis-patients
#14
E Elhanan, M Boaz, I Schwartz, D Schwartz, G Chernin, H Soetendorp, A Gal Oz, A Agbaria, T Weinstein
BACKGROUND: Dialysis patients have a suboptimal response to hepatitis B (HBV) vaccination. This study aimed to compare the immunogenicity of two vaccines: the third-generation Sci-B-Vac™ vs. the second-generation Engerix B(®). The cohort included two groups of dialysis patients: naïve and previously vaccinated non-responders. Primary endpoints were antibody titers ≥10 IU/L at 3 and 7 month post-vaccination. Secondary objectives were seroprotection rates in vaccine-naïve patients and in previously vaccinated non-responders...
April 29, 2017: Clinical and Experimental Nephrology
https://www.readbyqxmd.com/read/28422884/posterior-reversible-encephalopathy-syndrome-in-a-postpartum-hemorrhagic-woman-without-hypertension-a-case-report
#15
Chon-Fu Lio, Ying-Hua Lee, Hung-Yen Chan, Chang-Ching Yu, Nan-Jing Peng, Hung-Pin Chan
RATIONALE: Posterior reversible encephalopathy syndrome (PRES), which diagnosis is based on clinical symptoms and radiological features, is a neurotoxic disease characterized by a set of clinical manifestations, such as seizure, headache, visual, and/or consciousness disturbance. It is the first case of PRES followed by postpartum hemorrhage (PPH) without underlying disease. PATIENT CONCERNS: A 37-year-old healthy woman had PPH after caesarean section. Six days after delivery, headache occurred suddenly, followed by episodes of clonus seizure...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28417553/calcineurin-inhibitor-free-strategies-for-prophylaxis-and-treatment-of-gvhd-in-children-with-posterior-reversible-encephalopathy-syndrome-after-stem-cell-transplantation
#16
Vered Shkalim-Zemer, Osnat Konen, Yoel Levinsky, Orli Michaeli, Anat Yahel, Aviva Krauss, Isaac Yaniv, Jerry Stein
BACKGROUND: Posterior reversible encephalopathy syndrome (PRES) is a distinct clinico-radiologic entity that can occur following allogeneic hematopoietic stem cell transplantation, often in the context of treatment with calcineurin inhibitors (CNIs). PROCEDURE: We describe the results of CNI-free management of 14 children with PRES and review the clinical and radiologic manifestations of their presentation. RESULTS: Discontinuation of CNIs usually resulted in remission of PRES, but patients with established graft versus host disease (GVHD) at the time when treatment was changed often experienced progressive GVHD despite administration of immune suppressive and modulating treatments...
April 18, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28416534/pazopanib-associated-posterior-reversible-encephalopathy-syndrome-with-intracerebral-haemorrhage
#17
Cameron Miller-Patterson, Corey R Fehnel
Pazopanib is a tyrosine kinase receptor antagonist used for renal cell carcinoma and soft tissue sarcoma that inhibits tumour growth and angiogenesis. A common side effect of pazopanib is hypertension. We report a case of a 69-year-old woman with clear cell renal cell carcinoma who developed a large right occipital intracerebral haemorrhage 3 weeks after initiating pazopanib. Although this was initially suspected to be a haemorrhagic metastasis, MRI revealed bi-occipital oedema, supporting a diagnosis of posterior reversible encephalopathy syndrome (PRES)...
April 17, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28416081/reversible-cerebral-vasoconstriction-syndrome-combined-with-posterior-reversible-encephalopathy-syndrome-after-heart-transplantation
#18
Seung Pil Ban, Gyojun Hwang, Chang Hyeun Kim, O-Ki Kwon
Reversible cerebral vasoconstriction syndrome (RCVS) combined with posterior reversible encephalopathy syndrome (PRES) is a rare complication in patients treated with immunosuppressants. A 52-year-old male patient presented with seizures after heart transplantation. The patient was suspected of having PRES on brain images. Despite the strict blood pressure control, the patient presented with altered mentality and the brain images showed a newly developed large acute infarction. Digital subtraction angiography (DSA) revealed the classic "sausage on a string" appearance of the cerebral arteries - potential feature of RCVS...
April 13, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28414318/initial-sites-of-hepadnavirus-integration-into-host-genome-in-human-hepatocytes-and-in-the-woodchuck-model-of-hepatitis-b-associated-hepatocellular-carcinoma
#19
R Chauhan, N D Churchill, P M Mulrooney-Cousins, T I Michalak
Hepatitis B virus (HBV) and the closely related woodchuck hepatitis virus (WHV) are potent carcinogens that trigger development of primary hepatocellular carcinoma (HCC). The initial sites of hepadnavirus-host genome integration, their diversity and kinetics of formation can be central to virus persistence and the initiation and progression of HCC. To recognize the nature of the very early virus-host interactions, we explored de novo infection of human hepatocyte-like HepaRG cells with authentic HBV and naive woodchucks with WHV...
April 17, 2017: Oncogenesis
https://www.readbyqxmd.com/read/28404583/acute-hypoxia-activates-neuroendocrine-but-not-pre-sympathetic-neurons-in-the-paraventricular-nucleus-of-the-hypothalamus-differential-role-of-nitric-oxide
#20
K Max Coldren, De-Pei Li, David D Kline, Eileen M Hasser, Cheryl M Heesch
Hypoxia results in decreased arterial PO2, arterial chemoreflex activation, and compensatory increases in breathing, sympathetic outflow, and neuroendocrine secretions, including increased secretion of vasopressin (AVP), corticotropin releasing hormone (CRH), adrenocorticotropin hormone (ACTH), and corticosterone. In addition to a brainstem pathway including the nucleus tractus solitarius (nTS) and the rostral ventrolateral medulla (RVLM), medullary pathways to the paraventricular nucleus of the hypothalamus (PVN) contribute to chemoreflex responses...
April 12, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
keyword
keyword
1526
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"