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Background Long-term treatment with supplemental oxygen has unknown efficacy in patients with stable chronic obstructive pulmonary disease (COPD) and resting or exercise-induced moderate desaturation. Methods We originally designed the trial to test whether long-term treatment with supplemental oxygen would result in a longer time to death than no use of supplemental oxygen among patients who had stable COPD with moderate resting desaturation (oxyhemoglobin saturation as measured by pulse oximetry [Spo2], 89 to 93%)...
October 27, 2016: New England Journal of Medicine
Alexandra E Livanos, Thomas U Greiner, Pajau Vangay, Wimal Pathmasiri, Delisha Stewart, Susan McRitchie, Huilin Li, Jennifer Chung, Jiho Sohn, Sara Kim, Zhan Gao, Cecily Barber, Joanne Kim, Sandy Ng, Arlin B Rogers, Susan Sumner, Xue-Song Zhang, Ken Cadwell, Dan Knights, Alexander Alekseyenko, Fredrik Bäckhed, Martin J Blaser
The early life microbiome plays important roles in host immunological and metabolic development. Because the incidence of type 1 diabetes (T1D) has been increasing substantially in recent decades, we hypothesized that early-life antibiotic use alters gut microbiota, which predisposes to disease. Using non-obese diabetic mice that are genetically susceptible to T1D, we examined the effects of exposure to either continuous low-dose antibiotics or pulsed therapeutic antibiotics (PAT) early in life, mimicking childhood exposures...
August 22, 2016: Nature Microbiology
Swati Sethi, S K Tyagi, Rahul K Anurag
Plant-based or non-dairy milk alternative is the fast growing segment in newer food product development category of functional and specialty beverage across the globe. Nowadays, cow milk allergy, lactose intolerance, calorie concern and prevalence of hypercholesterolemia, more preference to vegan diets has influenced consumers towards choosing cow milk alternatives. Plant-based milk alternatives are a rising trend, which can serve as an inexpensive alternate to poor economic group of developing countries and in places, where cow's milk supply is insufficient...
September 2016: Journal of Food Science and Technology
Sarah Schalekamp-Timmermans, Jerome Cornette, Albert Hofman, Willem A Helbing, Vincent W V Jaddoe, Eric A P Steegers, Bero O Verburg
BACKGROUND: There are sex differences in the risk of development of cardiovascular disease (CVD). According to the developmental origins of health and disease paradigm (DOHaD), CVD originates in fetal life. This study examines fetal sex differences in cardiovascular development in utero. METHODS: In 1028 pregnant women, we assessed fetal circulation using pulsed wave Doppler examinations between 28 and 34 weeks gestation. To test associations between fetal sex and fetal circulation measurements, linear regression models were used adjusting for fetal size, gestational age, and fetal heart rate...
2016: Biology of Sex Differences
Pedro Pallangyo, Isaac Mawenya, Paulina Nicholaus, Henry Mayala, Amida Kalombola, Godwin Sharau, Naiz Majani, Mohamed Janabi
BACKGROUND: Congenital complete heart block is a life-threatening condition which is highly associated with autoimmune and connective tissue disorders. Presence of maternal autoantibodies for associated conditions increases the risk of delivering a child with congenital complete heart block, however, less than a half of all women with such antibodies are symptomatic even after delivery. Mortality rate is highest during the neonatal period (45 %) and about two-thirds of all cases will require permanent pacing at some point in their lives...
October 19, 2016: Journal of Medical Case Reports
Trefor Morgan
Central Systolic Blood Pressure is lower than brachial artery blood Pressure due to reflected waves and greater augmentation at the periphery. The relationship is not consistent during life and alters with aging of the blood vessels. Increasing stiffness means that a greater component of the reflected waves returns to the central aorta during systolic contraction causing more amplification and a higher systolic blood pressure. Diastolic blood pressure on the other hand is always higher in the aorta than at the periphery allowing blood flow...
September 2016: Journal of Hypertension
Michel E Safar
Mid-life elevated BP is classically associated with a raised systemic vascular resistance. A classical interpretation of the association between aortic stiffness and blood pressure (BP) invokes hypertension as a simple form of premature aging that increases stress on the arterial wall and accelerates age-related stiffening of the aorta. Recent clinical and experimental data have called into question the directionality of this sequence of events associating stiffness and hypertension.Therefore an initial abnormality in stiffness may antedate and contribute initially to the pathogenesis of hypertension, namely isolated systolic hypertension...
September 2016: Journal of Hypertension
Enrico Agabiti Rosei
Current Hypertension Guidelines emphasize the importance of assessing the presence of preclinical organ damage. In fact, an extensive evaluation of organ damage may increase the number of patients classified at high CV risk and therefore strongly influence the clinical management of patients. Hypertensive heart disease remains to date the form of organ damage for which there is the greatest amount of evidence of a strong independent prognostic significance. In the presence of a chronic pressure overload, a parallel addition of sarcomers takes place with an increase in myocyte width, which in turn increases left ventricular wall thickness; myocyte hypertrophy is also associated with apoptosis, collagen deposition and ventricular fibrosis with an impairment of coronary hemodynamics as well, thus profoundly influencing functional properties of the left (and right) ventricle...
September 2016: Journal of Hypertension
Mayuresh Chaudhari, Sonu Sharma, Rajesh Kumar Jha, Ramandeep Singh Ahuja, Sandeep Bansal
Primary varicella infection in an immunocompetent young adult is very rare, but it has a high mortality rate due to serious complications. We report a rare association of varicella pneumonia presenting in acute respiratory distress with mild chest pain, however with electrocardiographic and biochemical markers suggestive of acute ST elevation myocardial infarction. Coronary angiography was done to exclude infarction, serum antibody titers confirmed varicella, acyclovir was started, and ARDS was successfully treated with steroid pulse therapy and mechanical ventilator support...
September 2016: Indian Heart Journal
Fatma Nur Korkmaz, Gulsen Ozen, Ali Uğur Ünal, Pınar Kahraman Koytak, Nese Tuncer, Haner Direskeneli
Abstract/ Resumo Behcet's disease (BD) is a multisystem inflammatory disorder characterized by recurrent oral and genital ulcers, skin lesions and uveitis. The nervous system involvement of BD, neuro-Behcet's disease (NBD), is one of the important causes of mortality of the disease. Herein, we present a 29-year-old male with parenchymal NBD who has progressed rapidly and was managed with an uncommon aggressive immunosuppresive combination therapy. The patient first presented six years ago with vertigo and difficulty in talking and walking...
September 28, 2016: Acta Reumatológica Portuguesa
Lang Jia, Yan Wang, Jinyun Chen, Wenzhi Chen
The aim of this study was to investigate the effects of focused low-intensity pulsed ultrasound (FLIPUS) therapy on the functional and health status of patients with knee osteoarthritis (KOA). A total of 106 subjects with bilateral KOA were randomized sequentially into two groups. Group I received FLIPUS + diclofenac sodium, and group II received sham FLIPUS + diclofenac sodium. The therapeutic effects of the interventions were evaluated by measuring changes in VAS pain, the WOMAC scores, and the LI scores after 10 days of treatment as well as changes in LI and VAS at follow-up, 4 and 12 weeks later...
October 17, 2016: Scientific Reports
Zdeněk Fryšák, David Karásek, Milan Halenka
Endocrine orbitopathy (EO) must be understood mainly as a result of oxidative stress. The pathological process finally affects both the appearance and vision of the patient. In the case of inappropriate or late treatment or lack of patient cooperation, it significantly influences the quality of life of those affected. In spite of the sophisticated dia-gnostic algorithms, in some cases it is difficult to confirm the diagnosis of EO. The range of laboratory methods, the essential part of the diagnostic process, has only recently been extended by the possibility of quantification of specific, stimulating immunoglobulins (TSI)...
2016: Vnitr̆ní Lékar̆ství
Basant M Elnady, Ayman Saeed Mohamed Abdelghafar, El Shazly Abdul Khalik, Mohammed Mesfer Algethami, A S Basiony, Mona Dhaif Allah Al-Otaibi, Maram Eidhah Al-Otaibi
OBJECTIVE: Systemic lupus erythematosus (SLE) can present limitations to exercise capacity and quality of life (QoL) because of various clinical conditions, such as pulmonary disease or heart disease. Tissue Doppler echocardiography (TDE) offers the promise of an objective measurement to quantify regional and global ventricular function through the assessment of myocardial velocity data. This study aimed to assess the intensity of left ventricular (LV) and right ventricular (RV) systolic and diastolic dysfunction in SLE patients by means of TDE and cardiopulmonary exercise (CPX) testing to determine their impact on QoL...
September 2016: Eur J Rheumatol
Shaukat Ali M Shaikh, Atanu Barik, Beena G Singh, Ramani V Madukuri, Neduri V Balaji, Gottumukkal V Subbaraju, Devidas B Naik, K Indira Priyadarsini
Hispolon (HS), a natural polyphenol found in medicinal mushrooms, and its isoxazole (HI) and pyrazole (HP) derivatives have been examined for free radical reactions and in vitro antioxidant activity. Reaction of these compounds with one-electron oxidant, azide radicals (N3(•)) and trichloromethyl peroxyl radicals (CCl3O2(•)), model peroxyl radicals, studied by nanosecond pulse radiolysis technique, indicated formation of phenoxyl radicals absorbing at 420 nm with half life of few hundred microseconds (µs)...
October 13, 2016: Free Radical Research
Anouk L M Eikendal, Michiel L Bots, Cees Haaring, Tobias Saam, Rob J van der Geest, Jos J M Westenberg, Hester M den Ruijter, Imo E Hoefer, Tim Leiner
BACKGROUND: Reference values for morphological and functional parameters of the cardiovascular system in early life are relevant since they may help to identify young adults who fall outside the physiological range of arterial and cardiac ageing. This study provides age and sex specific reference values for aortic wall characteristics, cardiac function parameters and aortic pulse wave velocity (PWV) in a population-based sample of healthy, young adults using magnetic resonance (MR) imaging...
2016: PloS One
Jiro Kimura, Kenji Okumura, Hideki Katagiri, Alan Kawarai Lefor, Ken Mizokami, Tadao Kubota
INTRODUCTION: Omental hemorrhage results from rupture of the omental vessels. There are many causes of omental hemorrhage including trauma, aneurysm, and vasculitis. Idiopathic omental hemorrhage is a rare cause of an acute abdomen, which is potentially life-threatening. We report a patient with idiopathic omental hemorrhage, which may have been caused by overeating. CASE PRESENTATION: A 29-year-old man without a history of trauma, bleeding disorders, or other significant medical history, presented with left upper quadrant pain, which began after overeating the previous evening...
October 4, 2016: International Journal of Surgery Case Reports
Erik McShane, Celine Sin, Henrik Zauber, Jonathan N Wells, Neysan Donnelly, Xi Wang, Jingyi Hou, Wei Chen, Zuzana Storchova, Joseph A Marsh, Angelo Valleriani, Matthias Selbach
Do young and old protein molecules have the same probability to be degraded? We addressed this question using metabolic pulse-chase labeling and quantitative mass spectrometry to obtain degradation profiles for thousands of proteins. We find that >10% of proteins are degraded non-exponentially. Specifically, proteins are less stable in the first few hours of their life and stabilize with age. Degradation profiles are conserved and similar in two cell types. Many non-exponentially degraded (NED) proteins are subunits of complexes that are produced in super-stoichiometric amounts relative to their exponentially degraded (ED) counterparts...
October 20, 2016: Cell
Cheng-Hsiu Tsai, Naoki Kohno
Living baleen whales (Mysticeti) include the world's largest animals to have ever lived-blue whales (Balaenoptera musculus) can reach more than 30 m. However, the gigantism in baleen whales remains little explored. Here, we compiled all published stem mysticetes from the Eocene and Oligocene and then mapped the estimated body size onto different phylogenies that suggest distinct evolutionary histories of baleen whales. By assembling all known stem baleen whales, we present three novel findings in early mysticete evolution...
December 2016: Die Naturwissenschaften
Costantino Mancusi, Eva Gerdts, Giovanni de Simone, Helga Midtbø, Mai Tone Lønnebakken, Kurt Boman, Kristian Wachtell, Björn Dahlöf, Richard B Devereux
We tested the prognostic impact of a marker of arterial stiffness, pulse pressure/stroke volume index (PP/SVi) in patients with hypertension and left ventricular (LV) hypertrophy. We used data from 866 patients randomized to losartan or atenolol-based antihypertensive treatment, over a median of 4.8 years, in the Losartan Intervention For Endpoint reduction in hypertension (LIFE) study. The association of PP/SVi with outcomes was tested in Cox regression analyses and reported as hazard ratio (HR) and 95% confidence intervals (CI)...
October 6, 2016: Blood Pressure
H Arthur Woods, Steven J Lane
Many terrestrial insects live in environments that flood intermittently, and some life stages may spend days underwater without access to oxygen. We tested the hypothesis that terrestrial insects with underground pupae show respiratory adaptations for surviving anoxia and subsequently reestablishing normal patterns of respiration. Pupae of Manduca sexta were experimentally immersed in water for between 0 and 13 days. All pupae survived up to 5 days of immersion regardless of whether the water was aerated or anoxic...
October 1, 2016: Journal of Experimental Biology
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