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Natural history

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https://www.readbyqxmd.com/read/28723935/responses-of-molluscan-communities-to-centuries-of-human-impact-in-the-northern-adriatic-sea
#1
Ivo Gallmetzer, Alexandra Haselmair, Adam Tomašových, Michael Stachowitsch, Martin Zuschin
In sediment cores spanning ~500 years of history in the Gulf of Trieste, down-core changes in molluscan community structure are characterized by marked shifts in species and functional composition. Between the 16th and 19th century, a strong heavy metal contamination of the sediments, most notably by Hg, together with the effects of natural climatic oscillations (increased sedimentation and organic enrichment) drive community changes. Since the early 20th century up to 2013, the combined impacts of cultural eutrophication, frequent hypoxic events and intensifying bottom trawling replace heavy metal contamination and climatic factors as the main drivers...
2017: PloS One
https://www.readbyqxmd.com/read/28723900/the-natural-history-of-acute-ebola-virus-disease-among-patients-managed-in-five-ebola-treatment-units-in-west-africa-a-retrospective-cohort-study
#2
Kelly Skrable, Reshma Roshania, Michaela Mallow, Vanessa Wolfman, Matthew Siakor, Adam C Levine
INTRODUCTION: Previous studies of Ebola Virus Disease (EVD) have focused on clinical symptoms and Ebola virus (EBOV) cycle threshold (CT) values recorded at patient triage. Our study explores EVD symptoms and EBOV CT values from onset of illness to recovery or death in a diverse population of patients. METHODOLOGY/PRINCIPAL FINDINGS: We analyzed clinical care data from EBOV positive patients admitted to five Ebola treatment units in West Africa from 2014-2015. Prevalence of clinical signs/symptoms and CT values were explored using descriptive statistics...
July 19, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28723513/the-natural-history-and-outcome-predictors-of-metastatic-castration-resistant-prostate-cancer
#3
REVIEW
Robert J van Soest, Jason A Efstathiou, Cora N Sternberg, Bertand Tombal
CONTEXT: Biomarkers for the treatment of metastatic castration-resistant prostate cancer (mCRPC) are urgently needed by clinicians to facilitate treatment decisions. OBJECTIVE: To review current prognostic and predictive biomarkers in mCRPC. EVIDENCE ACQUISITION: We performed a nonsystematic review of the literature from 2004 to August 2016 by searching in Medline. Cross-matching references were used to search for additional articles. We reviewed clinical research and review articles written in the English language...
December 2016: European Urology Focus
https://www.readbyqxmd.com/read/28723507/the-use-of-biomarkers-to-manage-men-with-metastatic-prostate-cancer-one-day-but-not-yet
#4
Marcus G Cumberbatch, James W Catto
Metastatic castration-resistant prostate cancer has poor survival outcomes. New prognostic gene panels are being used in developing ways to interrogate the likely natural history of an individual's disease. Biomarker innovations to calculate tumour burden also hold promise for the future, but there is still some way to go to validate and stratify their use.
December 2016: European Urology Focus
https://www.readbyqxmd.com/read/28723478/low-t-cell-receptor-diversity-high-somatic-mutation-burden-and-high-neoantigen-load-as-predictors-of-clinical-outcome-in-muscle-invasive-bladder-cancer
#5
Noura J Choudhury, Kazuma Kiyotani, Kai Lee Yap, Alexa Campanile, Tatjana Antic, Poh Yin Yew, Gary Steinberg, Jae Hyun Park, Yusuke Nakamura, Peter H O'Donnell
BACKGROUND: The success of cancer immunotherapies has highlighted the potent ability of local adaptive immune responses to eradicate cancer cells by targeting neoantigens generated by somatic alterations. However, how these factors interact to drive the natural history of muscle-invasive bladder cancer (MIBC) is not well understood. OBJECTIVE: To investigate the role of immune regulation in MIBC disease progression, we performed massively parallel T-cell receptor (TCR) sequencing of tumor-infiltrating T cells (TILs), in silico neoantigen prediction from exome sequences, and expression analysis of immune-related genes...
October 2016: European Urology Focus
https://www.readbyqxmd.com/read/28723467/human-papillomavirus-infection-and-vaccination-in-males
#6
REVIEW
Eugenio Ventimiglia, Simon Horenblas, Asif Muneer, Andrea Salonia
CONTEXT: Human papillomavirus (HPV) is the commonest sexually transmitted pathogen in humans and is linked to the aetiopathogenesis for both benign and malignant disease in men. OBJECTIVE: To evaluate and summarise the evidence for HPV infection and vaccination in men. EVIDENCE ACQUISITION: A search of Medline, PubMed, and Scopus was performed to identify articles published in English within the last 10 yr addressing HPV epidemiology, the natural history of HPV infection and its long-term consequences, and vaccination in men...
October 2016: European Urology Focus
https://www.readbyqxmd.com/read/28723378/dietary-antioxidants-and-longitudinal-changes-in-lower-urinary-tract-symptoms-in-elderly-men-the-osteoporotic-fractures-in-men-study
#7
Kathleen F Holton, Lynn M Marshall, Jackilen Shannon, Jodi A Lapidus, James M Shikany, Douglas C Bauer, Elizabeth Barrett-Connor, J Kellogg Parsons
BACKGROUND: Antioxidants can potentially alter the progression of lower urinary tract symptoms (LUTS) through anti-inflammatory mechanisms. OBJECTIVE: To determine if dietary antioxidants are associated with reduced likelihood of LUTS progression or increased likelihood of LUTS remission in untreated elderly men. DESIGN, SETTING, AND PARTICIPANTS: A prospective cohort study of 1670 US men aged 65-100 yr. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS: Baseline variables included the American Urological Association Symptom Index, dietary intake assessed via a 69-item Block food frequency questionnaire (FFQ), demographics, lifestyle characteristics, quality of life (SF-12), and medication use...
August 2016: European Urology Focus
https://www.readbyqxmd.com/read/28722088/-evaluation-of-new-minimally-invasive-techniques-in-gastrointestinal-surgery-and-contemplation-on-health-economics
#8
Xishan Wang
With the widespread introduction of minimally invasive surgery (MIS) in late 1987 by laparoscopic cholecystectomy, the practice and expectation of general surgery were changed forever. As the development of scientific technology, new techniques of MIS have sprung up all around the world. 3D laparoscopy surgery, natural orifice transluminal endoscopic surgery, da Vinci surgical system and other new technologies also need time to be verified, and this is the only way all new things should get though. They are very unique in their own right, and all have advantages and disadvantages...
July 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28721643/the-scientific-self-reclaiming-its-place-in-the-history-of-research-ethics
#9
Herman Paul
How can the history of research ethics be expanded beyond the standard narrative of codification-a story that does not reach back beyond World War II-without becoming so broad as to lose all distinctiveness? This article proposes a history of research ethics focused on the "scientific self," that is, the role-specific identity of scientists as typically described in terms of skills, competencies, qualities, or dispositions. Drawing on three agenda-setting texts from nineteenth-century history, biology, and sociology, the article argues that the "revolutions" these books sought to unleash were, among other things, revolts against inherited conceptions of scientific selfhood...
July 18, 2017: Science and Engineering Ethics
https://www.readbyqxmd.com/read/28721604/a-space-of-one-s-own-barbosa-du-bocage-the-foundation-of-the-national-museum-of-lisbon-and-the-construction-of-a-career-in-zoology-1851-1907
#10
Daniel Gamito-Marques
This paper discusses the life and scientific work of José Vicente Barbosa du Bocage (1823-1907), a nineteenth-century Portuguese naturalist who carved a new place for zoological research in Portugal and built up a prestigious scientific career by securing appropriate physical and institutional spaces to the discipline. Although he was appointed professor of zoology at the Lisbon Polytechnic School, an institution mainly devoted to the preparatory training of military officers and engineers, he succeeded in creating the conditions that allowed him to develop consistent research in zoology at this institution...
July 18, 2017: Journal of the History of Biology
https://www.readbyqxmd.com/read/28721497/normoalbuminuric-diabetic-kidney-disease
#11
REVIEW
Chao Chen, Chang Wang, Chun Hu, Yachun Han, Li Zhao, Xuejing Zhu, Li Xiao, Lin Sun
Diabetic kidney disease (DKD) is one of the primary causes of end-stage renal disease (ESRD). Early diagnosis is very important in preventing the development of DKD. Urinary albumin excretion rate (UAER) and glomerular filtration rate (GFR) are widely accepted as criteria for the diagnosis and clinical grading of DKD, and microalbuminuria has been recommended as the first clinical sign of DKD. The natural history of DKD has been divided into three stages: normoalbuminuria, microalbuminuria, and macroalbuminuria...
July 18, 2017: Frontiers of Medicine
https://www.readbyqxmd.com/read/28721433/oral-health-and-the-frail-elderly
#12
L Rapp, S Sourdet, B Vellas, M-H Lacoste-Ferré
INTRODUCTION: The relationships between oral health conditions and frailty have rarely been explored. A systematic review of frailty components and oral health concluded that differences in study population endpoint criteria and study design cannot establish a relationship between frailty and oral health. OBJECTIVE: This study aims to describe the distribution of the OHAT (Oral Health Assessment Tool) score in a population of frail subjects and to assess associated parameters (age, socio-economic status, living conditions, education level, nutritional habits, cognitive functioning, autonomy)...
2017: Journal of Frailty & Aging
https://www.readbyqxmd.com/read/28721016/a-review-of-the-literature-analyzing-benefits-and-concerns-of-infliximab-biosimilar-ct-p13-for-the-treatment-of-rheumatologic-diseases-focus-on-interchangeability
#13
REVIEW
Andrea Becciolini, Maria Gabriella Raimondo, Chiara Crotti, Elena Agape, Martina Biggioggero, Ennio Giulio Favalli
The introduction of biological agents drastically changed the treatment paradigm of inflammatory arthritides, ameliorating the natural history of the diseases but concomitantly increasing the drug costs due to the manufacturing process. On this concern, biosimilar drugs may represent a valid option for reducing this elevated cost and increasing the availability of these highly effective treatments. Recently, CT-P13, the first biosimilar of infliximab, has been approved with the same indications established for the reference product (RP), and its daily use is progressively increasing...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/28720136/bilateral-multiple-pulmonary-artery-aneurysms-associated-with-cavitary-pulmonary-tuberculosis-a-case-report
#14
Pedro Pallangyo, Frederick Lyimo, Smita Bhalia, Hilda Makungu, Bashir Nyangasa, Flora Lwakatare, Pal Suranyi, Mohamed Janabi
BACKGROUND: Pulmonary artery aneurysms constitute <1% of aneurysms occurring in the thoracic cavity. Congenital cardiac defects are responsible for the majority (>50%) of cases, however, pulmonary artery aneurysm is a rare sequelae of pulmonary tuberculosis reported in about 5% of patients with chronic cavitary tuberculosis on autopsy. The natural history of this potentially fatal condition remains poorly understood and guidelines for optimal management are controversial. CASE PRESENTATION: A 24-year-old man, a nursing student of African descent, was referred to us from an up-country regional hospital with a 4-week history of recurrent episodes of breathlessness, awareness of heartbeats and coughing blood 3 weeks after completing a 6-month course of anti-tuberculosis drugs...
July 19, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28720119/calcified-amorphous-tumor-of-the-heart-with-mitral-annular-calcification-a-case-report
#15
Ryo Nakamaru, Hiroki Oe, Katsuomi Iwakura, Takafumi Masai, Kenshi Fujii
BACKGROUND: Calcified amorphous tumor of the heart is a rare, non-neoplastic cardiac mass characterized by nodular calcium in the background of amorphous degenerating fibrinous material. Clinical diagnosis of calcified amorphous tumor can be difficult, and current single imaging techniques do not specifically differentiate calcified amorphous tumor from other cardiac tumors such as calcified atrial myxoma, calcified thrombi, or vegetation. Complete surgical resection is the treatment of choice for both symptom improvement and prevention of embolization, as well as for pathological diagnosis...
July 18, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28719013/in-an-era-of-highly-effective-treatment-hepatitis-c-screening-of-the-general-population-of-the-united-states-for-hepatitis-c-should-be-considered
#16
Zobair Younossi, Deidre Blissett, Rob Blissett, Linda Henry, Youssef Younossi, Rachel Beckerman, Sharon Hunt
BACKGROUND AND AIMS: Hepatitis C virus (HCV) treatment with all oral direct acting antiviral agents (DAA's) achieve sustained virologic response (SVR) rates of 98%. Re-assessment of general US population screening for HCV is imperative. This study compared the cost-effectiveness (CE) of three HCV screening strategies: screen all (SA), screen Birth Cohort (BCS), and screen high risks (HRS). METHODS: Using a previous designed decision-analytic Markov model, estimations of the natural history of HCV and CE evaluation of the three HCV screening strategies over a lifetime horizon in the US population was undertaken...
July 18, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28718950/radiofrequency-ablation-for-the-management-of-thyroid-nodules-a-critical-appraisal-of-the-literature
#17
REVIEW
Roberto Cesareo, Andrea Palermo, Valerio Pasqualini, Roberto Cianni, Gianluigi Gaspa, Silvia Manfrini, Claudio Maurizio Pacella
The majority of benign thyroid nodules are asymptomatic, remain stable in size, and do not require treatment. However, a minority of patients with growing nodules may have local symptoms or cosmetic concerns, and thus demand surgical therapy. The timely use of ultrasound-guided, minimally invasive thermal therapies has changed the natural history of benign, enlarging thyroid nodules (TNs). These procedures produce persistent shrinkage of TNs and an improvement of local symptoms. Among the various procedures, percutaneous ethanol injection (PEI) represents the first-line treatment for thyroid cysts, while in solid cold nodules, laser and radiofrequency ablation (RFA) have proven to be very effective and safe techniques in producing significant volume reduction that remains stable over several years...
July 18, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28718895/considering-the-impact-of-pregnancy-on-the-natural-history-of-hidradenitis-suppurativa
#18
P Perng, J G Zampella, G A Okoye
Hidradenitis suppurativa (HS) is a chronic and debilitating inflammatory skin disease that disproportionately affects women of childbearing age. Yet, little has been written about the impact of pregnancy on the natural history of HS. It has been postulated that apocrine-gland activity diminishes in pregnancy, accounting for symptom remission. This article is protected by copyright. All rights reserved.
July 18, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/28718604/-sexual-medicine-in-lausanne-past-present-and-future
#19
Sandra Fornage, Francesco Bianchi-Demicheli
Sexuality is a natural function, part of global health and has to be evaluated in every patient. When difficulties or dyfunctions happen in this domain, a specific mangement should be proposed. Sexual medicine is a « young » transversal discipline developping these last years in the french-speaking area of Switzerland. We present in this article a short history of sexual medicine in Lausanne and the recent activity in the Sexual Medicine Consultation of the Maternity in the CHUV.
March 15, 2017: Revue Médicale Suisse
https://www.readbyqxmd.com/read/28718411/molecular-events-in-the-natural-history-of-pancreatic-cancer
#20
REVIEW
Leslie E Oldfield, Ashton A Connor, Steven Gallinger
Pancreatic ductal adenocarcinoma (PDAC) is among the deadliest epithelial malignancies. Improvements in our understanding of PDAC carcinogenesis will hopefully improve its detection, management, and outcomes, as has been achieved with other malignancies. Here we review the literature on the natural history of PDAC, including its cell of origin, the initiating somatic mutational events, pathways deranged in the mature tumor, its biological heterogeneity, and the relationship of the primary tumor with metastases...
May 2017: Trends in Cancer
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