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https://www.readbyqxmd.com/read/28634234/the-thioreduction-component-ccmg-confers-efficiency-and-the-heme-ligation-component-ccmh-ensures-stereo-specificity-during-cytochrome-c-maturation
#1
Andreia F Verisssimo, Bahia Khalfaoui-Hassani, Josephine Hwang, Stefan Steimle, Nur Selamoglu, Carsten Sanders, Camilo Khatchikian, Fevzi Daldal
In many Gram-negative bacteria, including Rhodobacter capsulatus, cytochrome c maturation (Ccm) is carried out by a membrane-integral machinery composed of nine proteins (CcmA to I). During this process, the periplasmic thiol-disulfide oxidoreductase DsbA is thought to catalyze the formation of a disulfide bond between the Cys residues at the apocytochrome c heme binding site (CXXCH). Subsequently, a Ccm-specific thioreductive pathway involving CcmG and CcmH reduces this disulfide bond to allow covalent heme ligation...
June 20, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28633328/identification-and-characterization-of-a-solute-carrier-cia8-involved-in-inorganic-carbon-acclimation-in-chlamydomonas-reinhardtii
#2
Marylou C Machingura, Joanna Bajsa-Hirschel, Susan M Laborde, Joshua B Schwartzenburg, Bratati Mukherjee, Ananya Mukherjee, Steve V Pollock, Britta Förster, G Dean Price, James V Moroney
The supply of inorganic carbon (Ci) at the site of fixation by Rubisco is a key parameter for efficient CO2 fixation in aquatic organisms including the green alga, Chlamydomonas reinhardtii. Chlamydomonas reinhardtii cells, when grown on limiting CO2, have a CO2-concentrating mechanism (CCM) that functions to concentrate CO2 at the site of Rubisco. Proteins thought to be involved in inorganic carbon uptake have been identified and localized to the plasma membrane or chloroplast envelope. However, current CCM models suggest that additional molecular components are involved in Ci uptake...
June 13, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28633304/molecular-aspects-of-the-biophysical-co2-concentrating-mechanism-and-its-regulation-in-marine-diatoms
#3
Yoshinori Tsuji, Kensuke Nakajima, Yusuke Matsuda
Diatoms operate a CO2-concentrating mechanism (CCM) that drives upwards of 20% of annual global primary production. Recent progress in CCM research in the marine pennate diatom Phaeodactylum tricornutum revealed that this diatom directly takes up HCO3- from seawater through low-CO2-inducible plasma membrane HCO3- transporters, which belong to the solute carrier (SLC) 4 family. Apart from this, studies of carbonic anhydrases (CAs) in diatoms have revealed considerable diversity in classes and localization among species...
June 13, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28632113/paracandidimonas-soli-gen-nov-sp-nov-isolated-from-soil
#4
Peter Kämpfer, Hans-Jürgen Busse, John A McInroy, Stefanie P Glaeser
A slightly yellow-pigmented, Gram-stain-negative, rod-shaped bacterium, strain IMT-305T, was isolated from soil in Alabama, USA. Phylogenetic analysis based on the nearly full-length 16S rRNA gene sequence placed the strain in between the genera Pusillimonas, Parapusillimonas and Candidimonas with highest 16S rRNA gene sequence similarity to the type strain of Parapusillimonas granuli (97.5 %) and Candidimonas nitroreducens (97.4 %). The genomic G+C content of strain IMT-305T was 63.9 mol%. The main cellular fatty acids were C18:1ω7c, C17:0 cyclo, C16:0 and C16:1ω7c/iso-C15:0 2-OH (detected as summed feature 3)...
June 20, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28629503/red-pink-pigmented-hymenobacter-coccineus-sp-nov-hymenobacter-lapidarius-sp-nov-and-hymenobacter-glacialis-sp-nov-isolated-from-rocks-in-antarctica
#5
Ivo Sedláček, Stanislava Králová, Kamila Kýrová, Ivana Mašlaňová, Hans-Jürgen Busse, Eva Staňková, Veronika Vrbovská, Miroslav Němec, Miloš Barták, Pavla Holochová, Pavel Švec, Roman Pantůček
Four rod-shaped and Gram-stain-negative bacterial strains, CCM 8647, CCM 8649T, CCM 8643T and CCM 8648T, were isolated from rock samples collected on James Ross Island, Antarctica. Extensive biotyping, fatty acid profiling, chemotaxonomy, 16S rRNA gene sequencing and whole-genome sequencing was applied to isolates to clarify their taxonomic position. Phylogenetic analysis based on 16S rRNA gene sequencing indicated that all four isolates belonged to the genus Hymenobacter. Strains CCM 8649T and CCM 8647 were most closely related to Hymenobacter arizonensis OR362-8T (94...
June 20, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28625248/-core-knowledge-and-skill-based-approach-to-subspecialty-construction-in-critical-intensive-care-medicine-with-distinct-chinese-peculiarity
#6
Lijun Wang, Fang Tian
With the rapid development of critical care medicine (CCM) in China, there are increases in the number of intensive care units (ICUs), the scale of one center ICU and the team. Subspecialty construction of CCM is of great concerns for personnel training as well as discipline development, and is currently one of the urgent problems that need to be resolved. Experience of CCM subspecialty construction from Europe and the United States is lacking and it is necessary to propose some opinions on innovation to construct CCM subspecialties with Chinese characteristics...
June 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28623403/diffusion-tensor-imaging-can-predict-surgical-outcomes-of-patients-with-cervical-compression-myelopathy
#7
Satoshi Maki, Masao Koda, Mitsuhiro Kitamura, Taigo Inada, Koshiro Kamiya, Mitsutoshi Ota, Yasushi Iijima, Junya Saito, Yoshitada Masuda, Koji Matsumoto, Masatoshi Kojima, Takayuki Obata, Kazuhisa Takahashi, Masashi Yamazaki, Takeo Furuya
PURPOSE: The aim of this study was to assess the potential role of diffusion tensor imaging (DTI) as a predictor of surgical outcomes in patients with cervical compressive myelopathy (CCM). Surgical decompression is often recommended for symptomatic CCM. It is important to know the prognosis of surgical outcomes and to recommend appropriate timing for surgery. METHODS: We enrolled 26 patients with CCM who underwent surgery. The Japanese Orthopaedic Association (JOA) score for cervical myelopathy was evaluated before and 6 months after surgery...
June 16, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28620788/comparison-of-intraoperative-neurophysiologic-monitoring-outcomes-between-cervical-and-thoracic-spine-surgery
#8
Shujie Wang, Yuan Tian, Xiangquan Lin, Zhifu Ren, Yu Zhao, Jiliang Zhai, Xiaojuan Zhang, Yanwei Zhao, Yingyue Dong, Congran Zhao, Ye Tian
PURPOSE: The objective is to compare the intraoperative monitoring (IOM) outcomes between degenerative cervical and thoracic spine decompression surgery. METHOD: A total of 97 patients with cervical compression myelopathy (CCM) and 75 patients with thoracic compression myelopathy (TCM) were prospectively collected between December 2012 and June 2015 in our spine center. Somatosensory-evoked potentials (SSEP) and motor-evoked potentials (MEP) were used for IOM. The postoperative neurologic status of each patient was assessed immediately after surgery...
June 15, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28618290/defining-trauma-in-complex-care-management-safety-net-providers-perspectives-on-structural-vulnerability-and-time
#9
Ariana Thompson-Lastad, Irene H Yen, Mark D Fleming, Meredith Van Natta, Sara Rubin, Janet K Shim, Nancy J Burke
In this paper, we delineate how staff of two complex care management (CCM) programs in urban safety net hospitals in the United States understand trauma. We seek to (1) describe how staff in CCM programs talk about trauma in their patients' lives; (2) discuss how trauma concepts allow staff to understand patients' symptoms, health-related behaviors, and responses to care as results of structural conditions; and (3) delineate the mismatch between long-term needs of patients with histories of trauma and the short-term interventions that CCM programs provide...
June 12, 2017: Social Science & Medicine
https://www.readbyqxmd.com/read/28613090/personality-disorders-in-primary-care-impact-on-depression-outcomes-within-collaborative-care
#10
Kurt B Angstman, Ashok Seshadri, Alberto Marcelin, Cesar A Gonzalez, Gregory M Garrison, Jay-Sheree Allen
BACKGROUND: Individuals with personality disorders (PDs) are high utilizers of primary care and mental health services; however, they struggle to utilize the care effectively and studies have shown a strong association between having a PD and higher impairment in social role functioning. This is especially important because PDs are highly comorbid with a wide range of other mental health disorders. The collaborative care model (CCM) for depression was developed with an emphasis on patient engagement and aimed to reduce health care utilization, while improving treatment outcomes in primary care...
June 1, 2017: Journal of Primary Care & Community Health
https://www.readbyqxmd.com/read/28604116/the-cognitive-decline-in-older-patients-with-end-stage-renal-disease-cope-study-rationale-and-design
#11
Noeleen Berkhout-Byrne, Marije H Kallenberg, André Gaasbeek, Ton J Rabelink, Sebastiaan Hammer, Mark A van Buchem, Matthias J van Osch, Lucia J M Kroft, Henk Boom, Simon P Mooijaart, Marjolijn van Buren
BACKGROUND: Older patients with end stage renal disease (ESRD) are at increased risk for cognitive decline, but detailed studies of the magnitude of cognitive decline on dialysis or comprehensive conservative management (CCM) are lacking and the underlying pathophysiological mechanisms have poorly been studied. OBJECTIVE: To describe the rationale and design of the COPE study. Study objectives are firstly to examine the severity of cognitive impairment in older patients reaching ESRD before dialysis and the rate of decline after dialysis or CCM initiation...
June 10, 2017: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/28582571/the-role-of-rubisco-kinetics-and-pyrenoid-morphology-in-shaping-the-ccm-of-haptophyte-microalgae
#12
Ana M C Heureux, Jodi N Young, Spencer M Whitney, Maeve R Eason-Hubbard, Renee B Y Lee, Robert E Sharwood, Rosalind E M Rickaby
The haptophyte algae are a cosmopolitan group of primary producers that contribute significantly to the marine carbon cycle and play a major role in paleo-climate studies. Despite their global importance, little is known about carbon assimilation in haptophytes, in particular the kinetics of their Form 1D CO2-fixing enzyme, Rubisco. Here we examine Rubisco properties of three haptophytes with a range of pyrenoid morphologies (Pleurochrysis carterae, Tisochrysis lutea, and Pavlova lutheri) and the diatom Phaeodactylum tricornutum that exhibit contrasting sensitivities to the trade-offs between substrate affinity (Km) and turnover rate (kcat) for both CO2 and O2...
June 3, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28573926/curcumin-loaded-chitosan-cholesterol-micelles-evaluation-in-monolayers-and-3d-cancer-spheroid-model
#13
Omkara Swami Muddineti, Preeti Kumari, Eupa Ray, Balaram Ghosh, Swati Biswas
AIM: To improve the bioavailability and anticancer potential of curcumin by using a cholesterol-conjugated chitosan micelle. Methods & methods: Cholesterol was conjugated to chitosan (15 kDa) to form self-assembled micelles, which loaded curcumin. Physicochemical characterization and formulation optimization of the drug-loaded micelles (curcumin-loaded chitosan-cholesterol micelles [C-CCM]) were performed. In vitro cellular uptake and viability of C-CCM were investigated in melanoma and breast cancer cell lines...
June 2, 2017: Nanomedicine
https://www.readbyqxmd.com/read/28562262/safety-profile-of-cough-and-cold-medication-use-in-pediatrics
#14
Jody L Green, George Sam Wang, Kate M Reynolds, William Banner, G Randall Bond, Ralph E Kauffman, Robert B Palmer, Ian M Paul, Richard C Dart
BACKGROUND AND OBJECTIVES: The safety of cough and cold medication (CCM) use in children has been questioned. We describe the safety profile of CCMs in children <12 years of age from a multisystem surveillance program. METHODS: Cases with adverse events (AEs) after ingestion of at least 1 index CCM ingredient (brompheniramine, chlorpheniramine, dextromethorphan, diphenhydramine, doxylamine, guaifenesin, phenylephrine, and pseudoephedrine) in children <12 years of age were collected from 5 data sources...
May 4, 2017: Pediatrics
https://www.readbyqxmd.com/read/28557873/utilization-of-the-health-care-system-of-community-case-management-patients
#15
Sarah Armold
PURPOSE OF STUDY: The has reduced payments to hospitals that have excessive readmissions. This mandate has made it imperative for hospitals to implement a plan to manage readmissions and transitions of care for patients they serve. The purpose of this study was to ascertain whether an advanced practice, nurse-led, community-based model is effective in reducing acute health care utilization. PRIMARY PRACTICE SETTING: The community case management (CCM) program was created more than 20 years ago to assess and manage care of patients demanding frequent emergency department (ED) visits and frequent hospitalizations, by providing in-home visits and care coordination by an advanced practice nurse or masters-prepared nurse...
July 2017: Professional Case Management
https://www.readbyqxmd.com/read/28555445/paenibacillus-aquistagni-sp-nov-isolated-from-an-artificial-lake-accumulating-industrial-wastewater
#16
Lučka Simon, Jure Škraban, Nikos C Kyrpides, Tanja Woyke, Nicole Shapiro, Ilse Cleenwerck, Peter Vandamme, William B Whitman, Janja Trček
Strain 11(T) was isolated from water of an artificial lake accumulating industrial wastewater on the outskirts of Celje, Slovenia. Phenotypic characterisation showed strain 11(T) to be a Gram-stain positive, spore forming bacterium. The 16S rRNA gene sequence identified strain 11(T) as a member of the genus Paenibacillus, closely related to Paenibacillus alvei (96.2%). Genomic similarity with P. alvei 29(T) was 73.1% (gANI), 70.2% (ANIb), 86.7% (ANIm) and 21.7 ± 2.3% (GGDC). The DNA G+C content of strain 11(T) was determined to be 47...
May 29, 2017: Antonie Van Leeuwenhoek
https://www.readbyqxmd.com/read/28552144/natural-history-of-cerebral-cavernous-malformations
#17
Chibawanye Ene, Anand Kaul, Louis Kim
Cerebral cavernous malformations (CCM) are vascular abnormalities of the central nervous system with an incidence of 0.4-0.5% and an annual rate of hemorrhage ranging from 0.7% to 1%. Most lesions are located in the cerebral hemisphere but some occur in deeper locations such as the basal ganglia and pons. The most common symptoms during presentation are headache, seizures, and focal neurologic deficits. Surgery remains the most effective treatment modality for symptomatic CCM, while the management of incidental CCM remains controversial...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/28548209/improved-sampling-and-analysis-of-images-in-corneal-confocal-microscopy
#18
E L Schaldemose, F I Fontain, P Karlsson, J R Nyengaard
INTRODUCTION: Corneal confocal microscopy (CCM) is a noninvasive clinical method to analyse and quantify corneal nerve fibres in vivo. Although the CCM technique is in constant progress, there are methodological limitations in terms of sampling of images and objectivity of the nerve quantification. The aim of this study was to present a randomized sampling method of the CCM images and to develop an adjusted area-dependent image analysis. Furthermore, a manual nerve fibre analysis method was compared to a fully automated method...
May 26, 2017: Journal of Microscopy
https://www.readbyqxmd.com/read/28540119/a-case-of-a-cerebral-cavernous-malformation-of-the-third-ventricle-that-caused-the-syndrome-of-inappropriate-secretion-of-antidiuretic-hormone
#19
Takahiro Sasaki, Nobuhide Hayashi, Nagatsuki Tomura, Eisaku Tsuji, Hideo Okada, Toshikazu Kuwata
BACKGROUND: Cerebral cavernous malformations (CCMs, also known as cavernous hemanigiomas) of the third ventricle are uncommon. Here, we present a rare case of a CCM that caused the syndrome of inappropriate secretion of antidiuretic hormone (SIADH). CASE DESCRIPTION: A 68-year-old man presented with acute-onset cognitive and memory disturbance. Endocrinological examinations revealed hyponatremia due to SIADH. Computed tomography indicated a high-density mass in the third ventricle that caused left unilateral hydrocephalus due to obstruction of the foramen Monroe...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28534135/automated-algorithm-for-counting-microbleeds-in-patients-with-familial-cerebral-cavernous-malformations
#20
Xiaowei Zou, Blaine L Hart, Marc Mabray, Mary R Bartlett, Wei Bian, Jeffrey Nelson, Leslie A Morrison, Charles E McCulloch, Christopher P Hess, Janine M Lupo, Helen Kim
PURPOSE: Familial cerebral cavernous malformation (CCM) patients present with multiple lesions that can grow both in number and size over time and are reliably detected on susceptibility-weighted imaging (SWI). Manual counting of lesions is arduous and subject to high variability. We aimed to develop an automated algorithm for counting CCM microbleeds (lesions <5 mm in diameter) on SWI images. METHODS: Fifty-seven familial CCM type-1 patients were included in this institutional review board-approved study...
May 22, 2017: Neuroradiology
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