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https://www.readbyqxmd.com/read/28533987/exoskeleton-may-influence-the-internal-body-temperatures-of-neotropical-dung-beetles-col-scarabaeinae
#1
Valentina Amore, Malva I M Hernández, Luis M Carrascal, Jorge M Lobo
The insect exoskeleton is a multifunctional coat with a continuum of mechanical and structural properties constituting the barrier between electromagnetic waves and the internal body parts. This paper examines the ability of beetle exoskeleton to regulate internal body temperature considering its thermal permeability or isolation to simulated solar irradiance and infrared radiation. Seven Neotropical species of dung beetles (Coleoptera, Scarabaeinae) differing in colour, surface sculptures, size, sexual dimorphism, period of activity, guild category and altitudinal distribution were studied...
2017: PeerJ
https://www.readbyqxmd.com/read/28525795/the-role-of-secretory-phospholipases-as-therapeutic-targets-for-the-treatment-of-myocardial-ischemia-reperfusion-injury
#2
REVIEW
Sriram Ravindran, Gino A Kurian
Myocardial reperfusion injury is a consequence of restoration of blood flow post ischemia. It is a complex process involving an acute inflammatory response activated by cytokines, chemokines, growth factors, and mediated by free radicals, calcium overload leading to mitochondrial dysfunction. Secretory phospholipases (sPLA2) are a group of pro-inflammatory molecules associated with diseases such as atherosclerosis, which increase the risk of reperfusion injury. This acute response leads to breakdown of phospholipids such as cardiolipin, found in the mitochondrial inner membrane, leading to disruption of energy producing enzymes of the electron transport chain...
May 16, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28524213/-update-on-the-treatment-of-rasopathies
#3
A Duat-Rodriguez, A Hernandez-Martin
INTRODUCTION: The term 'RASopathies' covers a series of diseases that present mutations in the genes that code for the proteins of the RAS/MAPK pathway. These diseases include neurofibromatosis type 1, Noonan syndrome, Legius syndrome, LEOPARD syndrome, Costello syndrome and cardiofaciocutaneous syndrome. Involvement of the RAS/MAPK pathway not only increases predisposition to develop tumours, but also determines the presence of phenotypic anomalies and alterations in learning processes...
May 17, 2017: Revista de Neurologia
https://www.readbyqxmd.com/read/28512732/decision-making-in-the-surgical-management-of-invasive-breast-cancer-part-1-lumpectomy-mastectomy-and-contralateral-prophylactic-mastectomy
#4
REVIEW
Lisa A Newman
Several prospective randomized clinical trials conducted internationally have proven the safety and survival equivalence of breast-conserving surgery compared with mastectomy. Adjuvant radiation is routinely recommended following lumpectomy surgery to minimize the risk of local recurrence. Comprehensive breast imaging (including bilateral mammography with diagnostic views and ultrasound evaluation), in addition to clinical examination, is essential to rule out potential contralateral pathology and to optimally characterize the extent of disease...
May 15, 2017: Oncology (Williston Park, NY)
https://www.readbyqxmd.com/read/28512410/rrx-001-priming-of-pd-1-inhibition-in-the-treatment-of-small-cell-carcinoma-of-the-vagina-a-rare-gynecological-tumor
#5
Christina Brzezniak, Bryan Oronsky, Jane Trepel, Thomas A Summers, Pedro Cabrales, Min-Jung Lee, Regina Day, Saheli Jha, Scott Caroen, Karen Zeman, Lindsey Ferry, Cindy Harmer, Neil Oronsky, Michelle Lybeck, Harry E Lybeck, James F Brown, Tony R Reid, Corey A Carter
Small cell carcinoma of the vagina is rare, so rare in fact that the total number reported in English-language journals is less than 30. Due to this extremely low incidence, no specific treatment guidelines have been established, and most of what is clinically known is derived from a handful of single case reports. However, as befitting its highly aggressive histologic features, which are reminiscent of small cell lung cancer (SCLC), first-line treatment is modeled after SCLC. Herein is reported the case of a 51-year-old African-American patient with metastatic biopsy-proven small cell carcinoma of the vagina that progressed through multiple therapies: first-line cisplatin and etoposide (making it platinum-resistant) and radiotherapy, followed by the tumor macrophage-stimulating agent RRx-001 in a clinical trial called QUADRUPLE THREAT, which per protocol preceded a mandated rechallenge with cisplatin and etoposide...
January 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/28510066/the-delta-opioid-receptor-in-pain-control
#6
Khaled Abdallah, Louis Gendron
Nowadays, the delta opioid receptor (DOPr) represents a promising target for the treatment of chronic pain and emotional disorders. Despite the fact that they produce limited antinociceptive effects in healthy animals and in most acute pain models, DOPr agonists have shown efficacy in various chronic pain models. In this chapter, we review the progresses that have been made over the last decades in understanding the role played by DOPr in the control of pain. More specifically, the distribution of DOPr within the central nervous system and along pain pathways is presented...
May 17, 2017: Handbook of Experimental Pharmacology
https://www.readbyqxmd.com/read/28508283/young-adults-self-derive-and-retain-new-factual-knowledge-through-memory-integration
#7
Nicole L Varga, Patricia J Bauer
The present research investigated the retention of new factual knowledge derived through integration of information acquired across temporally distributed learning episodes. Young adults were exposed to novel facts as they read long lists of seemingly unrelated information, one sentence at a time. They then were presented open-ended questions, the answers to which could be self-derived through integration of pairs of facts from the list. Experiment 1 was the first test of self-derivation of new factual knowledge through integration in adults using open-ended testing (as opposed to forced-choice testing)...
May 15, 2017: Memory & Cognition
https://www.readbyqxmd.com/read/28504837/immunotherapy-for-metastatic-renal-cell-carcinoma
#8
REVIEW
Susanne Unverzagt, Ines Moldenhauer, Monika Nothacker, Dorothea Roßmeißl, Andreas V Hadjinicolaou, Frank Peinemann, Francesco Greco, Barbara Seliger
BACKGROUND: Since the mid-2000s, the field of metastatic renal cell carcinoma (mRCC) has experienced a paradigm shift from non-specific therapy with broad-acting cytokines to specific regimens, which directly target the cancer, the tumour microenvironment, or both.Current guidelines recommend targeted therapies with agents such as sunitinib, pazopanib or temsirolimus (for people with poor prognosis) as the standard of care for first-line treatment of people with mRCC and mention non-specific cytokines as an alternative option for selected patients...
May 15, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28503892/the-ethics-of-clinical-trials-research-in-severe-mood-disorders
#9
Allison C Nugent, Franklin G Miller, Ioline D Henter, Carlos A Zarate
Mood disorders, including major depressive disorder (MDD) and bipolar disorder (BD), are highly prevalent, frequently disabling, and sometimes deadly. Additional research and more effective medications are desperately needed, but clinical trials research in mood disorders is fraught with ethical issues. Although many authors have discussed these issues, most do so from a theoretical viewpoint. This manuscript uses available empirical data to inform a discussion of the primary ethical issues raised in mood disorders research...
May 15, 2017: Bioethics
https://www.readbyqxmd.com/read/28500089/an-exploration-of-patients-experiences-of-participation-in-a-randomised-controlled-trial-of-the-manchester-acute-coronary-syndromes-macs-decision-rule
#10
Patricia van den Berg, Sarah Kendal, Helen V Alderson, Richard Body
BACKGROUND: As an important part of a pilot study to determine the feasibility of a large randomised controlled trial (RCT) comparing use of the Manchester Acute Coronary Syndromes (MACS) decision rule with standard care, we aimed to explore patient attitudes and potential barriers to participation in a trial of this nature. METHODS: We conducted a qualitative study nested within a pilot RCT comparing use of the MACS rule (which could enable some patients with chest pain to be discharged earlier) with standard care...
May 12, 2017: Emergency Medicine Journal: EMJ
https://www.readbyqxmd.com/read/28498087/an-expert-opinion-on-pandas-pans-highlights-and-controversies
#11
Francesca Chiarello, Silvia Spitoni, Eric Hollander, Marco Matucci Cerinic, Stefano Pallanti
OBJECTIVES: 'Pediatric Autoimmune Neuropsychiatric Disorders Associated with Streptococcal Infections' (PANDAS) identified a unique subgroup of patients with abrupt onset of obsessive compulsive disorder (OCD) symptoms clinically related to Streptococcus infection and accompanied by neuropsychological and motor symptoms. After almost 20 years, PANDAS has not been accepted as distinct disorder and new criteria for paediatric acute-onset neuropsychiatric syndrome (PANS) have been replaced it, highlighting the fact that several agents rather than only Streptococcus might be involved...
February 13, 2017: International Journal of Psychiatry in Clinical Practice
https://www.readbyqxmd.com/read/28497312/phenytoin-neuroprotection-or-neurotoxicity
#12
REVIEW
Jan M Keppel Hesselink, David J Kopsky
Phenytoin is an 80-year young molecule and new indications are still emerging. The neuroprotective potential of phenytoin has been evaluated for decades. Recently, a positive phase II trial supported its further development in the treatment of optic neuritis in multiple sclerosis. In 1942, however, peripheral neuritis was first reported to be an adverse event of phenytoin, and since then a small but steady stream of publications discussed peripheral polyneuropathy as being a possible adverse event of phenytoin...
May 11, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28489317/pharmacogenomics-of-angiotensin-receptor-neprilysin-inhibitor-and-its-long-term-side-effects
#13
REVIEW
Chayakrit Krittanawong, Takeshi Kitai
The development of the promising agent sacubitril/valsartan, known as an angiotensin receptor blocker-neprilysin inhibitor (ARNI), to improve heart failure (HF) management, may benefit morbidity, mortality, and readmission rates in patients with HF. The PARADIGM-HF trial demonstrated that the ARNI can reduce morbidity and mortality in patients with heart failure with reduced ejection fraction (HFrEF), while ongoing PARAMOUNT and PARAGON-HF trials determined whether the ARNI has morbidity and mortality benefits in patients with heart failure with preserved ejection fraction (HFpEF)...
May 10, 2017: Cardiovascular Therapeutics
https://www.readbyqxmd.com/read/28482877/electronic-patient-self-reporting-of-adverse-events-patient-information-and-advice-erapid-a-randomised-controlled-trial-in-systemic-cancer-treatment
#14
Kate Absolom, Patricia Holch, Lorraine Warrington, Faye Samy, Claire Hulme, Jenny Hewison, Carolyn Morris, Leon Bamforth, Mark Conner, Julia Brown, Galina Velikova
BACKGROUND: eRAPID (electronic patient self-Reporting of Adverse-events: Patient Information and aDvice) is an internet based system for patients to self-report symptoms and side effects (adverse events or AE) of cancer treatments. eRAPID allows AE reporting from home and patient reported data is accessible via Electronic Patient Records (EPR) for use in routine care. The system can generate alerts to clinical teams for severe AE and provides patient advice on managing mild AEs. The overall aims of eRAPID are to improve the safe delivery of cancer treatments, enhance patient care and standardise AE documentation...
May 8, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28476699/analysis-and-detection-of-microporosities-in-aging-bones-in-context-to-pharmaceutical-treatment-a-study-in-line-of-osteoporosis
#15
Nadeem Baig, Muhammad Zaheer Khan
The objective of the current study was to evaluate the effects of nandrolone decanoate in terms of morphological changes in the diaphyseal region of appendicular skeleton long bone (femur) of aging female Albino rats with the help of innovatively designed histomorphometric tool of study being introduced first time mapped out micro porosities (lacunae) which tend to intensify as part of advanced aging denoting deterioration in osseous tissue. In fact our research trial has been in the line of involutional osteoporosis especially common in post-menopausal aged women, as to find out appropriate drug usefulness in the care and cure of this diseased state as per recommendation of FDA...
September 2016: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28474232/ets-targeted-therapy-can-it-substitute-for-mek-inhibitors
#16
REVIEW
Osamu Tetsu, Frank McCormick
BACKGROUND: The RAS/MAPK pathway has been intensively studied in cancer. Constitutive activation of ERK1 and ERK2 is frequently found in cancer cells from a variety of tissues. In clinical practice and clinical trials, small molecules targeting receptor tyrosine kinases or components in the MAPK cascade are used for treatment. MEK1 and MEK2 are ideal targets because these enzymes are physiologically important and have narrow substrate specificities and distinctive structural characteristics...
December 2017: Clinical and Translational Medicine
https://www.readbyqxmd.com/read/28473598/test-retest-variability-of-lesion-suv-and-lesion-sur-in-18-f-fdg-pet-an-analysis-of-data-from-two-prospective-multicenter-trials
#17
Frank Hofheinz, Ivayla Apostolova, Liane Oehme, Jörg Kotzerke, Jörg van den Hoff
Quantitative assessment of radiation- and chemotherapy response with (18)F-FDG (fluorodeoxyglucose) whole body PET has attracted increasing interest in recent years. In most published work the standardized uptake value (SUV) is utilized for this purpose. In the context of therapy response assessment the reliability of lesion SUVs, notably their test-retest stability, thus becomes of crucial importance. However, in a recent study substantial test-retest variability (TRV) of SUVs was demonstrated. The purpose of the present study was to investigate if the tumor-to-blood standard uptake ratio (SUR) can improve test-retest variability of tracer uptake...
May 4, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28471034/ultrasonography-detected-subclinical-inflammation-in-patients-with-hand-osteoarthritis-and-established-rheumatoid-arthritis-a-comparison-between-two-different-pathologies-using-the-same-ultrasound-examination-protocol
#18
Sidra Hussain, Priyanka Sivakumaran, Anna Gill, Delfin Dhas, Coziana Ciurtin
OBJECTIVES: A recent review of ultrasound (US) studies in osteoarthritis (OA) showed very limited data about hand OA. Previous US studies in patients with OA described a degree of overlap between the US appearance of rheumatoid arthritis (RA) and OA joints. The present study aimed to assess the US features of subclinical inflammation in RA and hand OA, using the same US examination protocol. METHODS: A retrospective, cohort study compared patients with established RA (n = 224) and hand OA (n = 73), with respect to several demographic, clinical, laboratory and US parameters...
May 4, 2017: Musculoskeletal Care
https://www.readbyqxmd.com/read/28469496/use-and-misuse-of-aspirin-in-primary-cardiovascular-prevention
#19
REVIEW
Sergio Coccheri
The use of low-dose aspirin in primary prevention of cardiovascular (CV) events in healthy or apparently healthy people is a widely debated topic. Many arguments indicate that "primary prevention" is only a conventional definition and that the transition from primary to secondary prevention represents a continuum of increasing levels of CV risk. Although there are no direct proofs of a different efficacy of aspirin at different CV risk levels, in low-risk populations aspirin will appear to be less efficient...
2017: Clinical Medicine Insights. Cardiology
https://www.readbyqxmd.com/read/28465867/differences-in-antipsychotic-related-adverse-events-in-adult-pediatric-and-geriatric-populations
#20
Hersh Sagreiya, Yi-Ren Chen, Narmadan A Kumarasamy, Karthik Ponnusamy, Doris Chen, Amar K Das
In recent years, antipsychotic medications have increasingly been used in pediatric and geriatric populations, despite the fact that many of these drugs were approved based on clinical trials in adult patients only. Preliminary studies have shown that the "off-label" use of these drugs in pediatric and geriatric populations may result in adverse events not found in adults. In this study, we utilized the large-scale U.S. Food and Drug Administration (FDA) Adverse Events Reporting System (AERS) database to look at differences in adverse events from antipsychotics among adult, pediatric, and geriatric populations...
February 26, 2017: Curēus
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