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https://www.readbyqxmd.com/read/28527075/intravenous-mannitol-in-status-migrainosus-treatment-a-clinical-case-series
#1
Roberto De Simone, Angelo Ranieri, Guido Ferra, Federico Cautiero
Status migrainosus (SM) is defined as a severe migraine attack, usually poorly responsive to treatments, lasting more than 72 h. Recurrent SM predicts chronic migraine (CM) development in 83.7% of cases. There is evidence that in most unresponsive CM patients a sinus stenosis-associated raised intracranial pressure is causatively involved in migraine chronification. To test the hypothesis that SM may reflect a sustained rise in intracranial pressure, we tested the efficacy of a 3-day treatment with intravenous mannitol 18% 250 ml b...
May 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28523632/co-spray-drying-with-hpmc-as-a-platform-to-improve-direct-compaction-properties-of-various-tablet-fillers
#2
JinZhi Li, LiJie Zhao, Xiao Lin, Lan Shen, Yi Feng
Many commonly used tablet fillers are not suitable for direct compaction process due to insufficient properties, mainly of flowability and compactability. This work therefore aimed to use co-spray drying with HPMC as a platform to improve direct compaction properties of various tablet fillers. Starch, calcium hydrogen phosphate dihydrate (DCPD), and mannitol were chosen as a representative of three types of commonly used fillers (i.e. organic macromolecules, water-insoluble inorganic salts, and water-soluble small molecular carbohydrates), respectively...
May 18, 2017: AAPS PharmSciTech
https://www.readbyqxmd.com/read/28518051/red-blood-cells-ageing-markers-a-multi-parametric-analysis
#3
Manon Bardyn, Benjamin Rappaz, Keyvan Jaferzadeh, David Crettaz, Jean-Daniel Tissot, Inkyu Moon, Gerardo Turcatti, Niels Lion, Michel Prudent
BACKGROUND: Red blood cells collected in citrate-phosphate-dextrose can be stored for up to 42 days at 4 °C in saline-adenine-glucose-mannitol additive solution. During this controlled, but nevertheless artificial, ex vivo ageing, red blood cells accumulate lesions that can be reversible or irreversible upon transfusion. The aim of the present study is to follow several parameters reflecting cell metabolism, antioxidant defences, morphology and membrane dynamics during storage. MATERIALS AND METHODS: Five erythrocyte concentrates were followed weekly during 71 days...
May 2017: Blood Transfusion, Trasfusione del Sangue
https://www.readbyqxmd.com/read/28510193/characterization-of-lhsorp5cs-a-gene-catalyzing-proline-synthesis-in-oriental-hybrid-lily-sorbonne-molecular-modelling-and-expression-analysis
#4
Le Wang, Zhihong Guo, Yubao Zhang, Yajun Wang, Guo Yang, Liu Yang, Ruoyu Wang, Zhongkui Xie
BACKGROUND: Abiotic stresses negatively affect plant growth and flower production. In plants, P5CS proteins are key enzymes that catalyzed the rate-limiting steps of proline synthesis, and proline is a well-known osmoprotectant that is closely related to abiotic stress tolerance. However, information about the P5CS genes, their effects on proline accumulation, and their role in abiotic stress tolerance in Lilium is still lacking. RESULTS: We isolated and characterized a novel gene (LhSorP5CS) from Oriental hybrid lily cultivar Sorbonne...
December 2017: Botanical Studies (Taipei, Taiwan)
https://www.readbyqxmd.com/read/28509952/high-yield-production-of-mannitol-by-leuconostoc-pseudomesenteroides-ctcc-g123-from-chicory-derived-inulin-hydrolysate
#5
Min Zhang, Lei Gu, Chao Cheng, Junru Zhu, Hao Wu, Jiangfeng Ma, Weiliang Dong, Xiangping Kong, Min Jiang, Pingkai Ouyang
Chicory is an agricultural plant with considerable potential as a carbohydrate substrate for low-cost production of biochemicals. In this work, the production of mannitol by Leuconostoc pseudomesenteroides CTCC G123 from chicory-derived inulin hydrolysate was investigated. The bioconversion process initially suffered from the leakage of fructose to the phosphoketolase pathway, resulting in a low mannitol yield. When inulin hydrolysate was supplemented with glucose as a substrate for mannitol production in combination with aeration induction and nicotinic acid induced redox modulation strategies, the mannitol yield greatly improved...
May 16, 2017: Journal of Industrial Microbiology & Biotechnology
https://www.readbyqxmd.com/read/28509350/high-sodium-continuous-veno-venous-hemodialysis-with-regional-citrate-anticoagulation-and-online-dialysate-generation-in-patients-with-acute-liver-failure-and-cerebral-edema
#6
Tamim Hamdi, Lenar Yessayan, Jerry Yee, Balazs Szamosfalvi
INTRODUCTION: Acute liver failure is associated with a high mortality rate. Induction of plasma hypertonicity with mannitol or hypertonic saline remains the cornerstone in the management of resultant cerebral edema. Significant disadvantages of this approach include poor or unpredictable control of serum sodium concentration and volume expansion, among others. METHODS: We used high sodium continuous veno-venous hemodialysis with regional citrate anticoagulation and online dialysate generation to accurately control the serum sodium in eleven patients with acute liver failure, renal failure, and cerebral edema...
May 16, 2017: Hemodialysis International
https://www.readbyqxmd.com/read/28507945/antimicrobial-activity-of-two-garlic-species-allium-sativum-and-a-tuberosum-against-staphylococci-infection-in-vivo-study-in-rats
#7
Paulo César Venâncio, Sidney Raimundo Figueroba, Bruno Dias Nani, Luiz Eduardo Nunes Ferreira, Bruno Vilela Muniz, Fernando de Sá Del Fiol, Adilson Sartoratto, Edvaldo Antonio Ribeiro Rosa, Francisco Carlos Groppo
Purpose: This study observed the effect of garlic extracts and amoxicillin against an induced staphylococcal infection model. MIC and MBC were also obtained for aqueous extracts of Allium sativum (Asa) and Allium tuberosum (Atu) against Staphylococcus aureus penicillin-sensitive (PSSA - ATCC 25923) and MRSA (ATCC 33592). Methods: Granulation tissues were induced in the back of 205 rats. After 14 days, 0.5 mL of 10(8) CFU/mL of PSSA or MRSA were injected inside tissues. After 24h, animals were divided: G1 (Control) - 0...
April 2017: Advanced Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28502747/chicken-egg-fetal-liver-dna-and-histopathologic-effects-of-structurally-diverse-carcinogens-and-non-carcinogens
#8
M J Iatropoulos, T Kobets, J-D Duan, K D Brunnemann, E Vock, U Deschl, G M Williams
Chicken egg fetal livers were evaluated for histopathological changes produced by four genotoxic hepatocarcinogens: 2-acetylaminofluorene (AAF), aflatoxin B1 (AFB1), benzo[a]pyrene (BaP), diethylnitrosamine (DEN); four structurally related non- or weakly- carcinogenic comparators: fluorene (FLU), aflatoxin B2 (AFB2), benzo[e]pyrene (BeP), N-nitrosodiethanolamine (NDELA); two epigenetic hepatocarcinogens: clofibric acid (CFA), phenobarbital (PB); and the non-carcinogen, D-mannitol (MAN). CFA, PB and MAN were also assessed for formation of DNA adducts using the (32)P nucleotide postlabeling (NPL) assay and for DNA breaks using the comet assay...
May 11, 2017: Experimental and Toxicologic Pathology: Official Journal of the Gesellschaft Für Toxikologische Pathologie
https://www.readbyqxmd.com/read/28498140/effect-of-albumin-in-combination-with-mannitol-on-whole-blood-coagulation-in-vitro-assessed-by-thromboelastometry
#9
Kadri Lillemäe, Antti T Laine, Alexey Schramko, Tomi T Niemi
BACKGROUND: Albumin and mannitol may interfere with hemostasis, but their coinfluence is unclear. We aimed to determine the effects of albumin alone and in combination with mannitol or Ringer acetate (RAC) on hemostasis in crossover in vitro study. MATERIALS AND METHODS: From citrated fresh whole blood withdrawn from 10 volunteers, we prepared 2.5, 5, 10, 15, and 20 vol% dilutions of 4% albumin (Alb group). Each sample was thereafter diluted by 15% mannitol (Alb/Man group) or RAC (Alb/RAC group) at a ratio of 9:1...
May 11, 2017: Journal of Neurosurgical Anesthesiology
https://www.readbyqxmd.com/read/28491294/prevalence-and-pattern-of-antibiotic-resistance-of-staphylococcus-aureus-isolated-from-door-handles-and-other-points-of-contact-in-public-hospitals-in-ghana
#10
Courage Kosi Setsoafia Saba, Jean Kwadwo Amenyona, Stephen Wilson Kpordze
BACKGROUND: Studies have implicated Staphylococcus aureus as the leading cause of septicemia in the Tamale metropolis of Ghana. The aim of this study was to determine the prevalence and antibiotic susceptibility of S. aureus and Methicillin Resistant S. aureus (MRSA) in the environments of three hospitals in Ghana. METHODS: A total of 120 swab samples were taken from door handles, stair railings and other points of contact at Tamale Teaching Hospital, Tamale Central Hospital and Tamale West Hospital...
2017: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/28490163/effects-of-quercetin-and-mannitol-on-erythropoietin-levels-in-rats-following-acute-severe-traumatic-brain-injury
#11
Orhan Kalemci, Hasan Emre Aydin, Ceren Kizmazoglu, Ismail Kaya, Hulya Yılmaz, Nuri M Arda
OBJECTIVE: The aim of this study to investigate the normal values of erythropoietin (EPO) and neuroprotective effects of quercetin and mannitol on EPO and hematocrit levels after acute severe traumatic brain injury (TBI) in rat model. METHODS: A weight-drop impact acceleration model of TBI was used on 40 male Wistar rats. The animals were divided into sham (group I), TBI (group II), TBI+quercetin (50 mg/kg intravenously) (group III), and TBI+mannitol (1 mg/kg intravenously) (group IV) groups...
May 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28488968/prevention-of-red-cell-storage-lesion-a-comparison-of-five-different-additive-solutions
#12
Johan W Lagerberg, Herbert Korsten, Pieter F Van Der Meer, Dirk De Korte
BACKGROUND: In Europe, red cell concentrates (RCC) are usually stored in SAGM (saline-adenine-glucose-mannitol). During storage, in vitro red cell quality declines, including lowered energy status and increased cell lysis. Recently, several additive solutions (ASs), designed to diminish the decline in in vitro quality during storage, have been developed. These new solutions have mainly been developed to better maintain red blood cell (RBC) 2,3-biphosphoglycerate (2,3 BPG) levels and energy status during storage...
April 10, 2017: Blood Transfusion, Trasfusione del Sangue
https://www.readbyqxmd.com/read/28487712/roles-of-plasmalemma-aquaporin-gene-stpip1-in-enhancing-drought-tolerance-in-potato
#13
Li Wang, Yuhui Liu, Shoujiang Feng, Jiangwei Yang, Dan Li, Junlian Zhang
Survival and mortality of plants in response to severe drought may be related to carbon starvation, but little is known about how plasma membrane intrinsic proteins may help alleviate the drought-induced damage. Here, we determined the roles of plasmalemma aquaporin gene in improving plant water status, maintaining carbon accumulation, and thereby enhancing drought tolerance. Seven StPIP1 transformed potato (Solanum tuberosum L.) lines (namely T1, T2…T7) were compared with non-transgenic control plant at molecule and whole-plant levels...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28485323/rhubarb-monomers-protect-intestinal-mucosal-barrier-in-sepsis-via-junction-proteins
#14
Lyu Wang, Yun-Liang Cui, Zhe Zhang, Zhao-Fen Lin, De-Chang Chen
BACKGROUND: Leakage of the intestinal mucosal barrier may cause translocation of bacteria, then leading to multiorgan failure. This study hypothesized that rhubarb monomers might protect the gut mucosal barrier in sepsis through junction proteins. METHODS: Healthy male Sprague-Dawley rats (weighing 230-250 g) under anesthesia and sedation were subjected to cecal ligation and perforation (CLP). After surgical preparation, rats were randomly assigned to eight groups (n = 6 or 8 each group): sham group (Group A: normal saline gavage); sepsis group (Group B: normal saline gavage); Group C (intraperitoneally, dexamethasone 0...
May 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28484912/investigations-into-and-development-of-a-lyophilized-and-formulated-recombinant-human-factor-ix-produced-from-cho-cells
#15
Aline G Almeida, Rodrigo C V Pinto, C Mark Smales, Leda R Castilho
OBJECTIVES: To develop a recombinant human factor IX (rFIX) formulation equivalent to commercially available products in terms of cake appearance, residual moisture, proportion of soluble aggregates and activity maintenance for 3 months at 4-8 °C. RESULTS: NaCl and low bulking agent/cryoprotectant mass ratio had a negative impact on cake quality upon lyophilisation for a wide range of formulations tested. Particular devised formulations maintained rFIX activity after lyophilization with a similar performance when compared with the rFIX formulated using the excipients reported for a commercially available FIX formulation (Benefix)...
May 8, 2017: Biotechnology Letters
https://www.readbyqxmd.com/read/28479517/investigation-of-nanocarriers-and-excipients-for-preparation-of-nanoembedded-microparticles
#16
Yingya Wang, Moritz Beck-Broichsitter, Mingshi Yang, Jukka Rantanen, Adam Bohr
Colloidal drug delivery systems often face physical and chemical instability as well as challenges with directed delivery. In order to overcome these challenges the colloidal formulations can be processed into microparticulate form (nanoembedded microparticles (NEMs)). In this study, different polymer nanocarriers (poly(lactide-co-glycolide), poly(styrene), chitosan and dendrimers) were used for preparing NEMs by spray-drying. Further, distinct matrix excipients were investigated including sugars (i.e., trehalose, sucrose, mannitol) and polymers (poly(vinyl pyrrolidone) and poly(ethylene glycol)), and the characteristics and performance of NEMs were studied in detail...
May 4, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28478873/the-use-of-mannitol-and-hypertonic-saline-therapies-in-patients-with-elevated-intracranial-pressure-a-review-of-the-evidence
#17
REVIEW
Briana Witherspoon, Nathan E Ashby
Patients with increased intracranial pressure generally require pharmacologic therapies and often more definitive treatments, such as surgical intervention. The overall goal of these interventions is to maintain or re-establish adequate cerebral blood flow and prevent herniation. Regardless of the cause of increased intracranial pressure, osmotherapy is considered the mainstay of medical therapy, and should be administered as soon as possible. This article reviews the history of hyperosmolar and hypertonic therapies, the Monro-Kellie hypothesis, and types of cerebral edema...
June 2017: Nursing Clinics of North America
https://www.readbyqxmd.com/read/28476319/simultaneous-determination-of-components-with-wide-polarity-and-content-ranges-in-cistanche-tubulosa-using-serially-coupled-reverse-phase-hydrophilic-interaction-chromatography-tandem-mass-spectrometry
#18
Yu Yan, Qingqing Song, Xiaojia Chen, Jun Li, Peng Li, Yitao Wang, Tongxiang Liu, Yuelin Song, Pengfei Tu
To meet the demands from plant physiologists and pharmacognosists, sustainable efforts are being devoted by the analytical chemists from all over the world to search an approach being capable of simultaneously monitoring primary along with secondary metabolites. The key technical bottlenecks currently lie at affording satisfactory chromatographic and spectrometric performances for both hydrophilic and hydrophobic substances that span a great content range. Herein, reverse phase liquid chromatography was directly coupled with hydrophilic interaction chromatography, namely RPLC-HILIC, to integrate their merits, whereas dilution pumps were employed to tackle the mismatching for the mobile phase between them...
June 9, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28472567/long-term-benefit-of-intra-arterial-bevacizumab-for-recurrent-glioblastoma
#19
Rachel A Alter, Timothy G White, Andrew A Fanous, Shamik Chakraborty, Christopher G Filippi, David J Pisapia, Apostolos John Tsiouris, John A Boockvar
Standard treatment for recurrent GBM is not yet established. We present a case demonstrating the benefit of intra-arterial (IA) bevacizumab with blood brain barrier disruption (BBBD) for the treatment of recurrent GBM. A 31 year-old man diagnosed with GBM, following primary resection, received temozolomide. After a second resection, he received one dose of IA bevacizumab with BBBD using mannitol, preventing regrowth for 2.5 years. Following tumor regrowth, the patient received another dose of IA bevacizumab with BBBD, which has prevented regrowth for another year...
May 2017: Journal of Experimental Therapeutics & Oncology
https://www.readbyqxmd.com/read/28471910/age-and-sex-normalization-of-intestinal-permeability-measures-for-the-improved-assessment-of-enteropathy-in-infancy-and-early-childhood-results-from-the-mal-ed-study
#20
Margaret N Kosek, Gwenyth O Lee, Richard L Guerrant, Rashidul Haque, Gagandeep Kang, Tahmeed Ahmed, Pascal Bessong, Asad Ali, Estomih Mduma, Pablo Peñataro Yori, William A Faubion, Aldo A M Lima, Maribel Paredes Olortegui, Carl Mason, Sudhir Babji, Ravinder Singh, Shahida Qureshi, Peter S Kosek, Amidou Samie, John Pascal, Sanjaya Shrestha, Benjamin J J McCormick, Jessica C Seidman, Dennis R Lang, Anita Zaidi, Laura E Caulfield, Michael Gottlieb
OBJECTIVES: To describe changes in intestinal permeability in early childhood in diverse epidemiologic settings. METHODS: In a birth cohort study the lactulose:mannitol (LM) test was administered to 1,980 children at four time points in the first 24 months of life in eight countries. Data from the Brazil site with an incidence of diarrhea similar to that seen in the U.S. and no growth faltering was used as an internal study reference to derive age- and sex-specific Z-scores for mannitol and lactulose recoveries and the lactulose mannitol ratio...
May 3, 2017: Journal of Pediatric Gastroenterology and Nutrition
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