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https://www.readbyqxmd.com/read/28528521/myeloid-populations-in-systemic-autoimmune-diseases
#1
REVIEW
María Morell, Nieves Varela, Concepción Marañón
Systemic autoimmune diseases (SADs) encompass a wide spectrum of clinical signs as a reflection of their complex physiopathology. A variety of mechanisms related with the innate immune system are in the origin of the loss of self-tolerance in these diseases, and for most of them, the myeloid leukocytes are key actors. Monocytes, macrophages, dendritic cells, and neutrophils are first-line immune effectors located in the interface between innate and adaptive immunity. They are crucial in the organization of the local and systemic responses to damage-associated molecular patterns (DAMPs) and determine the intensity, orientation, and duration of the local immune response through the expression of chemokines, costimulatory or protolerogenic factors...
May 20, 2017: Clinical Reviews in Allergy & Immunology
https://www.readbyqxmd.com/read/28528347/discriminative-accuracy-of-physician-and-nurse-predictions-for-survival-and-functional-outcomes-6-months-after-an-icu-admission
#2
Michael E Detsky, Michael O Harhay, Dominique F Bayard, Aaron M Delman, Anna E Buehler, Saida A Kent, Isabella V Ciuffetelli, Elizabeth Cooney, Nicole B Gabler, Sarah J Ratcliffe, Mark E Mikkelsen, Scott D Halpern
Importance: Predictions of long-term survival and functional outcomes influence decision making for critically ill patients, yet little is known regarding their accuracy. Objective: To determine the discriminative accuracy of intensive care unit (ICU) physicians and nurses in predicting 6-month patient mortality and morbidity, including ambulation, toileting, and cognition. Design, Setting, and Participants: Prospective cohort study conducted in 5 ICUs in 3 hospitals in Philadelphia, Pennsylvania, and enrolling patients who spent at least 3 days in the ICU from October 2013 until May 2014 and required mechanical ventilation, vasopressors, or both...
May 21, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/28528332/the-persistent-m%C3%A3-llerian-duct-syndrome-an-update-based-upon-a-personal-experience-of-157-cases
#3
Jean-Yves Picard, Richard L Cate, Chrystèle Racine, Nathalie Josso
Male sex differentiation is driven by 2 hormones, testosterone and anti-müllerian hormone (AMH), responsible for the regression of müllerian ducts in male fetuses. Mutations inactivating AMH or its receptor AMHRII lead to the persistent müllerian duct syndrome (PMDS) in otherwise normally virilized 46,XY males. Our objective was to review the clinical, anatomical, and molecular features of PMDS based upon a review of the literature and upon 157 personal cases. Three clinical presentations exist: bilateral cryptorchidism, unilateral cryptorchidism with contralateral hernia, and transverse testicular ectopia...
May 20, 2017: Sexual Development: Genetics, Molecular Biology, Evolution, Endocrinology, Embryology, and Pathology of Sex Determination and Differentiation
https://www.readbyqxmd.com/read/28528327/three-quarters-adrenalectomy-for-infantile-onset-cushing-syndrome-due-to-bilateral-adrenal-hyperplasia-in-mccune-albright-syndrome
#4
Tomoyo Itonaga, Hironori Goto, Manabu Toujigamori, Yasuharu Ohno, Seigo Korematsu, Tatsuro Izumi, Satoshi Narumi, Tomonobu Hasegawa, Kenji Ihara
BACKGROUND: Bilateral adrenalectomy is performed in cases with infantile-onset Cushing syndrome due to bilateral adrenal hyperplasia in McCune-Albright syndrome (MAS) because severe Cushing syndrome with heart failure and liver dysfunction can have a lethal outcome. This procedure can completely ameliorate hypercortisolism, although lifetime steroid replacement therapy and steps to prevent adrenal crisis are necessary. Recently, the efficacy of unilateral adrenalectomy has been reported in adult cases of bilateral macronodular adrenal hyperplasia, but there is no consensus regarding the appropriate surgical treatment for bilateral adrenal hyperplasia in MAS...
May 19, 2017: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/28528297/biogenic-aldehydes-as-therapeutic-targets-for-cardiovascular-disease
#5
REVIEW
Margaret-Ann M Nelson, Shahid P Baba, Ethan J Andersonc
Aldehydes are continuously formed in biological systems through enzyme-dependent and spontaneous oxidation of lipids, glucose, and primary amines. These highly reactive, biogenic electrophiles can become toxic via covalent modification of proteins, lipids and DNA. Thus, agents that scavenge aldehydes through conjugation have therapeutic value for a number of major cardiovascular diseases. Several commonly-prescribed drugs (e.g., hydralazine) have been shown to have potent aldehyde-conjugating properties which may contribute to their beneficial effects...
May 18, 2017: Current Opinion in Pharmacology
https://www.readbyqxmd.com/read/28528295/a-machine-learning-graph-based-approach-for-3d-segmentation-of-bruch-s-membrane-opening-from-glaucomatous-sd-oct-volumes
#6
Mohammad Saleh Miri, Michael D Abràmoff, Young H Kwon, Milan Sonka, Mona K Garvin
Bruch's membrane opening-minimum rim width (BMO-MRW) is a recently proposed structural parameter which estimates the remaining nerve fiber bundles in the retina and is superior to other conventional structural parameters for diagnosing glaucoma. Measuring this structural parameter requires identification of BMO locations within spectral domain-optical coherence tomography (SD-OCT) volumes. While most automated approaches for segmentation of the BMO either segment the 2D projection of BMO points or identify BMO points in individual B-scans, in this work, we propose a machine-learning graph-based approach for true 3D segmentation of BMO from glaucomatous SD-OCT volumes...
May 6, 2017: Medical Image Analysis
https://www.readbyqxmd.com/read/28528145/uv-induced-electron-transfer-between-triethylamine-and-5-bromo-2-deoxyuridine-a-puzzle-concerning-the-photochemical-debromination-of-labeled-dna
#7
Paweł Wityk, Magdalena Zdrowowicz, Justyna Wiczk, Janusz Rak
5-Bromo-2'-deoxyuridine (BrdU) photosensitizes DNA to strand break formation. However, this type of photodamage is completely quenched by the presence of triethylamine (TEA) which originates from RP-HPLC purification commonly employed by oligonucleotide providers. While the presence of TEA in oligonucleotide samples does not interfere with PCR or other molecular biology applications, the mechanism of photochemical reaction proceeding in the labeled DNA is dramatically changed due to the photoinduced electron transfer (PET) between the photoexcited BrdU and the ground state TEA...
May 11, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28528054/surgical-management-of-simultaneous-left-coronary-atresia-and-anomalous-right-coronary-artery-origin
#8
Shyam Sathanandam, T K Susheel Kumar, Umar Boston, Christopher J Knott-Craig
A 9-year-old child presented with syncope during exercise. He received a diagnosis of congenital atresia of the left main coronary artery by angiography. He underwent successful coronary artery bypass grafting. On the third postoperative day, he experienced acute, precordial chest pain. An urgent computed tomographic scan showed an unrecognized anomalous origin of the right coronary artery (RCA) with a 1.5-cm intramural course. He was taken back to the operating room to undergo unroofing of the RCA. This case highlights the difficulty involved in making two rare diagnoses that can cause the same exact symptoms in a patient and the surgical challenges associated with it...
June 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28528020/optimal-hybrid-sequencing-and-assembly-feasibility-conditions-for-accurate-genome-reconstruction-and-cost-minimization-strategy
#9
Chun-Chi Chen, Noushin Ghaffari, Xiaoning Qian, Byung-Jun Yoon
Recent advances in high-throughput genome sequencing technologies have enabled the systematic study of various genomes by making whole genome sequencing affordable. Modern sequencers generate a huge number of small sequence fragments called reads, where the read length and the per-base sequencing cost depend on the technology used. To date, many hybrid genome assembly algorithms have been developed that can take reads from multiple read sources to reconstruct the original genome. However, rigorous investigation of the feasibility conditions for complete genome reconstruction and the optimal sequencing strategy for minimizing the sequencing cost has been conspicuously missing...
April 3, 2017: Computational Biology and Chemistry
https://www.readbyqxmd.com/read/28528017/-identification-of-sentinel-events-in-primary-care
#10
G Olivera Cañadas, A Cañada Dorado, M Drake Canela, B Fernández-Martínez, G Ordóñez León, M Cimas Ballesteros
OBJECTIVE: To identify and describe a list of sentinel events (SEs) for Primary Care (PC). METHODODOLOGY: A structured experts' consensus was obtained by using two online questionnaires. The participants were selected because of their expertise in PC and patient safety. The first questionnaire assessed the suitability of the hospital SEs established in the National Quality Forum 2006 for use in PC via responses of "yes", "no", or "yes but with modification". In the latter case, a re-wording of the SE was requested...
May 17, 2017: Revista de Calidad Asistencial: Organo de la Sociedad Española de Calidad Asistencial
https://www.readbyqxmd.com/read/28527972/genetic-and-epigenetic-alterations-in-meningiomas
#11
REVIEW
Vasiliki Galani, Evangeli Lampri, Anna Varouktsi, George Alexiou, Antigoni Mitselou, Athanasios P Kyritsis
Meningiomas originate from the arachnoid layer of the meninges and divided histologically into three grades: benign (grade I), atypical (grade II), and malignant meningiomas (grade III). Genetic alterations in grade I meningiomas include frequent deletions of chromosomal locus 22q12 and NF2 gene mutations and uncommon somatic SMARCB1 and SMARCE1gene mutations; In grade II meningiomas, chromosomal losses occur on 1p, 22q, 14q, 18q, 10, and 6q, and gains on 20q, 12q, 15q, 1q, 9q, and 17q; In grade III meningiomas, losses have been recognized on 6q, 10, and 14q and alterations of PTEN, CDKN2A and CDKN2B genes...
May 3, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28527945/targeting-lipid-metabolism-of-cancer-cells-a-promising-therapeutic-strategy-for-cancer
#12
Qiuping Liu, Qing Luo, Alexander Halim, Guanbin Song
One of the most important metabolic hallmarks of cancer cells is deregulation of lipid metabolism. In addition, enhancing de novo fatty acid (FA) synthesis, increasing lipid uptake and lipolysis have also been considered as means of FA acquisition in cancer cells. FAs are involved in various aspects of tumourigenesis and tumour progression. Therefore, targeting lipid metabolism is a promising therapeutic strategy for human cancer. Recent studies have shown that reprogramming lipid metabolism plays important roles in providing energy, macromolecules for membrane synthesis, and lipid signals during cancer progression...
May 17, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28527917/spatial-distribution-of-vanadium-and-microbial-community-responses-in-surface-soil-of-panzhihua-mining-and-smelting-area-china
#13
Xuelong Cao, Muhe Diao, Baogang Zhang, Hui Liu, Song Wang, Meng Yang
Spatial distribution of vanadium in surface soils from different processing stages of vanadium-bearing titanomagnetite in Panzhihua mining and smelting area (China) as well as responses of microbial communities including bacteria and fungi to vanadium were investigated by fieldwork and laboratory incubation experiment. The vanadium contents in this region ranged from 149.3 to 4793.6 mg kg(-1), exceeding the soil background value of vanadium in China (82 mg kg(-1)) largely. High-throughput DNA sequencing results showed bacterial communities from different manufacturing locations were quite diverse, but Bacteroidetes and Proteobacteria were abundant in all samples...
May 17, 2017: Chemosphere
https://www.readbyqxmd.com/read/28527894/hfe-genotype-affects-exosome-phenotype-in-cancer
#14
Oliver D Mrowczynski, A B Madhankumar, Becky Slagle-Webb, Sang Y Lee, Brad E Zacharia, James R Connor
Neuroblastoma is the third most common childhood cancer, and timely diagnosis and sensitive therapeutic monitoring remain major challenges. Tumor progression and recurrence is common with little understanding of mechanisms. A major recent focus in cancer biology is the impact of exosomes on metastatic behavior and the tumor microenvironment. Exosomes have been demonstrated to contribute to the oncogenic effect on the surrounding tumor environment and also mediate resistance to therapy. The effect of genotype on exosomal phenotype has not yet been explored...
May 17, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28527820/adventitial-cystic-disease-of-radial-artery-apropos-of-a-case-and-review-of-literature
#15
Álvaro Torres-Blanco, Luis Ariel Pepén-Moquete, Vicente Molina-Nácher, Francisco Gómez-Palonés
Adventitial cystic disease is an uncommon condition that is characterized by the collection of mucinous material that accumulates in the adventitial layer of the artery. Predominantly, this entity affects the popliteal artery, whereas it is extremely rare in the radial artery. We report a 72-year-old female patient that underwent surgical treatment of an adventitial cyst of the right radial artery. The involved arterial segment was resected, and reconstruction by means of the interposition of a saphenous vein graft was performed...
May 11, 2017: Cardiovascular Pathology: the Official Journal of the Society for Cardiovascular Pathology
https://www.readbyqxmd.com/read/28527818/predictors-associated-with-increased-prevalence-of-abdominal-aortic-aneurysm-in-chinese-patients-with-atherosclerotic-risk-factors
#16
W Li, S Luo, J Luo, Y Liu, B Ning, W Huang, L Xue, J Chen
OBJECTIVE/BACKGROUND: Epidemiological screening studies have demonstrated that the prevalence of abdominal aortic aneurysm (AAA) of Asian origin appears to be low and so increases uncertainty about the cost effectiveness of screening for AAAs in Chinese people. Some studies have demonstrated a higher prevalence of AAA in patients with atherosclerotic risk factors. The purpose of the study was to determine the prevalence of AAA and to explore the high risk group of AAA in Chinese patients with atherosclerotic risk factors...
May 17, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28527813/enhancer-evolution-and-the-origins-of-morphological-novelty
#17
REVIEW
Mark Rebeiz, Miltos Tsiantis
A central goal of evolutionary biology is to understand the genetic origin of morphological novelties-i.e. anatomical structures unique to a taxonomic group. Elaboration of morphology during development depends on networks of regulatory genes that activate patterned gene expression through transcriptional enhancer regions. We summarize recent case studies and genome-wide investigations that have uncovered diverse mechanisms though which new enhancers arise. We also discuss how these enhancer-originating mechanisms have clarified the history of genetic networks underlying diversification of genital structures in flies, limbs and neural crest in chordates, and plant leaves...
May 18, 2017: Current Opinion in Genetics & Development
https://www.readbyqxmd.com/read/28527743/distribution-and-sources-of-organic-carbon-nitrogen-and-their-isotopes-in-surface-sediments-from-the-largest-mariculture-zone-of-the-eastern-guangdong-coast-south-china
#18
Yang-Guang Gu, Jun Ouyang, Jia-Jia Ning, Zeng-Huan Wang
China is the world's largest mariculture producer. However, there is limited detailed information on organic matter distribution generated by mariculture in China. This study assessed the total organic carbon (TOC), total nitrogen (TN), and isotopic composition (δ(13)C and δ(15)N) in surface sediments from Zhelin Bay in South China. TOC, TN, δ(13)C and δ(15)N ranged from 0.46-1.23%, 0.08-0.20%, -22.07 to -21.13‰ and 5.28-7.14‰, respectively, and followed similar spatial patterns. The C/N ratio coupled with isotopic composition (δ(13)C and δ(15)N), indicates that the TOC originated from both terrestrial and marine sources...
May 17, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28527729/the-hospitalization-profiles-of-patients-with-or-without-diabetes-treated-for-nontraumatic-lower-extremity-amputation-in-ribeir%C3%A3-o-preto-s%C3%A3-o-paulo-state-brazil-2001-2008
#19
Flávia F L Rodrigues, Domingos Alves, Carla R S Teixeira, Clarissa C A Arrelias, Maria T C G Torquato, Manoel A Santos, Maria Lucia Zanetti
The aim of this retrospective study was to assess the hospitalizations of patients with or without diabetes mellitus (DM) who underwent nontraumatic lower extremity amputation (NLEA) with regard to demographic and hospitalization-related variables. It is a high proportion of hospital beds in developing countries, for patients with diabetes mellitus with lower extremity complications. Nontraumatic amputations of lower extremities rates is an important indicator to assess the effectiveness of efforts to reduce chronic complications related to diabetic foot...
June 2017: Journal of Vascular Nursing: Official Publication of the Society for Peripheral Vascular Nursing
https://www.readbyqxmd.com/read/28527614/n-o-344-salpingectomie-opportuniste-et-autres-m%C3%A3-thodes-pour-r%C3%A3-duire-le-risque-de-cancer-de-l-ovaire-de-la-trompe-de-fallope-et-du-p%C3%A3-ritoine-dans-la-population-g%C3%A3-n%C3%A3-rale
#20
Shannon Salvador, Stephanie Scott, Julie Ann Francis, Anita Agrawal, Christopher Giede
OBJECTIF: La présente directive clinique examine les avantages potentiels de la salpingectomie opportuniste pour prévenir le développement du cancer séreux de grade élevé de l'ovaire, de la trompe de Fallope et du péritoine à la lumière de données probantes actuelles selon lesquelles ce type de cancer prendrait naissance dans la trompe de Fallope. UTILISATEURS CIBLES: Gynécologues, obstétriciens, médecins de famille, infirmières autorisées, infirmières praticiennes, résidents et fournisseurs de soins de santé...
June 2017: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
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