This paper mainly reports an experimental investigation on the residual mechanical and fracture properties of polystyrene aggregate concrete (PAC) after exposure to high temperatures up to 800 degrees Celsius. The fracture properties namely, the critical stress intensity factor ( K I C S ), the critical crack tip opening displacement (CTODC) for the Two-Parameter Model, and the fracture energy (GF) for the Fictitious Crack Model were examined using the three-point bending notched beam test, according to the RILEM recommendations. The effects of polystyrene aggregate (PA) content and temperature levels on the fracture and mechanical properties of concrete were investigated. The results showed that the mechanical properties of PAC significantly decreased with increase in temperature level and the extent of which depended on the PA content in the mixture. However, at a very high temperature of 800 °C, all samples showed 80 percent reduction in modulus of elasticity compared to room temperature, regardless of the level of PA content. Fracture properties of control concrete (C) and PAC were influenced by temperature in a similar manner. Increasing temperature from 25 °C to 500 °C caused almost 50% reduction of the fracture energy for all samples while 30% increase in fracture energy was occurred when the temperature increased from 500 °C to 800 °C. It was found that adding more PA content in the mixture lead to a more ductile behaviour of concrete.
http://ift.tt/2advBgK
Τετάρτη 27 Ιουλίου 2016
Materials, Vol. 9, Pages 630: Fracture Properties of Polystyrene Aggregate Concrete after Exposure to High Temperatures
Sensors, Vol. 16, Pages 1185: Monolithic Cylindrical Fused Silica Resonators with High Q Factors
The cylindrical resonator gyroscope (CRG) is a typical Coriolis vibratory gyroscope whose performance is determined by the Q factor and frequency mismatch of the cylindrical resonator. Enhancing the Q factor is crucial for improving the rate sensitivity and noise performance of the CRG. In this paper, for the first time, a monolithic cylindrical fused silica resonator with a Q factor approaching 8 × 105 (ring-down time over 1 min) is reported. The resonator is made of fused silica with low internal friction and high isotropy, with a diameter of 25 mm and a center frequency of 3974.35 Hz. The structure of the resonator is first briefly introduced, and then the experimental non-contact characterization method is presented. In addition, the post-fabrication experimental procedure of Q factor improvement, including chemical and thermal treatment, is demonstrated. The Q factor improvement by both treatments is compared and the primary loss mechanism is analyzed. To the best of our knowledge, the work presented in this paper represents the highest reported Q factor for a cylindrical resonator. The proposed monolithic cylindrical fused silica resonator may enable high performance inertial sensing with standard manufacturing process and simple post-fabrication treatment.
http://ift.tt/2asdErQ
Nutrients, Vol. 8, Pages 454: Validity and Reproducibility of a Dietary Questionnaire for Consumption Frequencies of Foods during Pregnancy in the Born in Guangzhou Cohort Study (BIGCS)
This study aimed to examine the reproducibility and validity of a new food frequency questionnaire (FFQ) used in a birth cohort study to estimate the usual consumption frequencies of foods during pregnancy. The reference measure was the average of three inconsecutive 24 h diet recalls (24 HR) administrated between two FFQs, and the reproducibility was measured by repeating the first FFQ (FFQ1) approximately eight weeks later (FFQ2). A total of 210 pregnant women from the Born in Guangzhou Cohort Study (BIGCS) with full data were included in the analysis. The Spearman's correlation coefficients of FFQ1 and FFQ2 ranged from 0.33 to 0.71. The intraclass correlation coefficients of the two FFQs ranged from 0.22 to 0.71. The Spearman's correlation coefficients of the 24 HR and FFQ2 ranged from 0.23 to 0.62. Cross-classification analysis showed 65.1% of participants were classified into same and contiguous quintiles, while only 3.2% were misclassified into the distant quintiles. Bland-Altman methods showed good agreement for most food groups across the range of frequencies between FFQ1 and FFQ2. Our findings indicated that the reproducibility and validity of the FFQ used in BIGCS for assessing the usual consumption frequencies of foods during pregnancy were acceptable.
http://ift.tt/2advdix
Nutrients, Vol. 8, Pages 458: Suppressive Effects of Tea Catechins on Breast Cancer
Tea leaf (Camellia sinensis) is rich in catechins, which endow tea with various health benefits. There are more than ten catechin compounds in tea, among which epigallocatechingallate (EGCG) is the most abundant. Epidemiological studies on the association between tea consumption and the risk of breast cancer were summarized, and the inhibitory effects of tea catechins on breast cancer, with EGCG as a representative compound, were reviewed in the present paper. The controversial results regarding the role of tea in breast cancer and areas for further study were discussed.
http://ift.tt/2asdfW7
Sensors, Vol. 16, Pages 1180: Object Detection Applied to Indoor Environments for Mobile Robot Navigation
To move around the environment, human beings depend on sight more than their other senses, because it provides information about the size, shape, color and position of an object. The increasing interest in building autonomous mobile systems makes the detection and recognition of objects in indoor environments a very important and challenging task. In this work, a vision system to detect objects considering usual human environments, able to work on a real mobile robot, is developed. In the proposed system, the classification method used is Support Vector Machine (SVM) and as input to this system, RGB and depth images are used. Different segmentation techniques have been applied to each kind of object. Similarly, two alternatives to extract features of the objects are explored, based on geometric shape descriptors and bag of words. The experimental results have demonstrated the usefulness of the system for the detection and location of the objects in indoor environments. Furthermore, through the comparison of two proposed methods for extracting features, it has been determined which alternative offers better performance. The final results have been obtained taking into account the proposed problem and that the environment has not been changed, that is to say, the environment has not been altered to perform the tests.
http://ift.tt/2azyHZf
Sensors, Vol. 16, Pages 1184: Three-Dimensional Photon Counting Imaging with Axially Distributed Sensing
In this paper, we review three-dimensional (3D) photon counting imaging with axially distributed sensing. Under severely photon-starved conditions, we have proposed various imaging and algorithmic approaches to reconstruct a scene in 3D, which are not possible by using conventional imaging system due to lack of sufficient number of photons. In this paper, we present an overview of optical sensing and imaging system along with dedicated algorithms for reconstructing 3D scenes by photon counting axially distributed sensing, which may be implemented by moving a single image sensor along its optical axis. To visualize the 3D image, statistical estimation methods and computational reconstruction of axially distributed sensing is applied.
http://ift.tt/2axEHou
Sensors, Vol. 16, Pages 1182: Fast Object Motion Estimation Based on Dynamic Stixels
The stixel world is a simplification of the world in which obstacles are represented as vertical instances, called stixels, standing on a surface assumed to be planar. In this paper, previous approaches for stixel tracking are extended using a two-level scheme. In the first level, stixels are tracked by matching them between frames using a bipartite graph in which edges represent a matching cost function. Then, stixels are clustered into sets representing objects in the environment. These objects are matched based on the number of stixels paired inside them. Furthermore, a faster, but less accurate approach is proposed in which only the second level is used. Several configurations of our method are compared to an existing state-of-the-art approach to show how our methodology outperforms it in several areas, including an improvement in the quality of the depth reconstruction.
http://ift.tt/2azys0c
IJERPH, Vol. 13, Pages 765: Endocrine Aspects of Environmental “Obesogen” Pollutants
Growing evidence suggests the causal link between the endocrine-disrupting chemicals (EDCs) and the global obesity epidemics, in the context in the so-called "obesogenic environment". Dietary intake of contaminated foods and water, especially in association with unhealthy eating pattern, and inhalation of airborne pollutants represent the major sources of human exposure to EDCs. This is of particular concern in view of the potential impact of obesity on chronic non-transmissible diseases, such as type 2 diabetes, cardiovascular disease, and hormone-sensitive cancers. The key concept is the identification of adipose tissue not only as a preferential site of storage of EDCs, but also as an endocrine organ and, as such, susceptible to endocrine disruption. The timing of exposure to EDCs is critical to the outcome of that exposure, with early lifetime exposures (e.g., fetal or early postnatal) particularly detrimental because of their permanent effects on obesity later in life. Despite that the mechanisms operating in EDCs effects might vary enormously, this minireview is aimed to provide a general overview on the possible association between the pandemics of obesity and EDCs, briefly describing the endocrine mechanisms linking EDCs exposure and latent onset of obesity.
http://ift.tt/2ayGYiP
Sensors, Vol. 16, Pages 1181: Time-Varying Vocal Folds Vibration Detection Using a 24 GHz Portable Auditory Radar
Time-varying vocal folds vibration information is of crucial importance in speech processing, and the traditional devices to acquire speech signals are easily smeared by the high background noise and voice interference. In this paper, we present a non-acoustic way to capture the human vocal folds vibration using a 24-GHz portable auditory radar. Since the vocal folds vibration only reaches several millimeters, the high operating frequency and the 4 × 4 array antennas are applied to achieve the high sensitivity. The Variational Mode Decomposition (VMD) based algorithm is proposed to decompose the radar-detected auditory signal into a sequence of intrinsic modes firstly, and then, extract the time-varying vocal folds vibration frequency from the corresponding mode. Feasibility demonstration, evaluation, and comparison are conducted with tonal and non-tonal languages, and the low relative errors show a high consistency between the radar-detected auditory time-varying vocal folds vibration and acoustic fundamental frequency, except that the auditory radar significantly improves the frequency-resolving power.
http://ift.tt/2ayHmO9
Special Collection: Cell-Based Therapy for Bone Regeneration
Tissue Engineering Part A , Vol. 0, No. 0.
http://ift.tt/2aiZRlj
Study protocol for a randomised controlled trial to test the effectiveness of providing information on childbirth and postnatal period to partners of pregnant women
Introduction
The objective of this study is to investigate the effect of the distribution of a booklet providing information to fathers during their partners' pregnancies on fathers' and mothers' postpartum mental health and quality of life (QOL), as well as on fathers' childcare participation and living situations.
Methods and analysisThis randomised controlled trial will comprise 554 couples consisting of pregnant women due to give birth at an obstetric institution in Aichi Prefecture, Japan and their partners. Participants will be recruited during prenatal check-ups in the third trimester, and those who provide written consent will be allocated randomly to an intervention and a control group. The pregnant women's partners allocated to the intervention group will be given a booklet written for men containing information on childbirth and postnatal period. Its content will include matters such as what preparations the partner should make before birth and tips for housework and childcare as well as how to prevent unintentional injury to the baby. The control group will not receive any intervention. A baseline survey in the third trimester and follow-up surveys at 1 and 3 months post partum will be carried out using self-administered questionnaires. The primary outcome is the proportion of new mothers' partners at risk for paternal depression (Edinburgh Postnatal Depression Scale score ≥8). Secondary outcomes include the risk of postnatal depression in new mothers, QOL of new mothers and their partners, partners' knowledge of and engagement in housework and childcare, marital relations and parenting stress on the part of new mothers.
Ethics and disseminationThis study has been approved by the Ethical Committee at the National Center for Child Health and Development, Tokyo, Japan. The results of the study will be widely disseminated as peer-reviewed papers and at international conferences, with the aim of improving public health services in Japan.
Trial registration numberUMIN000021475; Pre-results.
http://ift.tt/2aoio37
Hundred top-cited articles focusing on acute kidney injury: a bibliometric analysis
Background
Acute kidney injury (AKI) is a major global health issue, associated with poor short-term and long-term outcomes. Research on AKI is increasing with numerous articles published. However, the quantity and quality of research production in the field of AKI is unclear.
Methods and analysisTo analyse the characteristics of the most cited articles on AKI and to provide information about achievements and developments in AKI, we searched the Science Citation Index Expanded for citations of AKI articles. For the top 100 most frequently cited articles (T100), we evaluated the number of citations, publication time, province of origin, journal, impact factor, topic or subspecialty of the research, and publication type.
ResultsThe T100 articles ranged from a maximum of 1971 citations to a minimum of 215 citations (median 302 citations). T100 articles were published from 1951 to 2011, with most articles published in the 2000s (n=77), especially the 5-year period from 2002 to 2006 (n=51). The publications appeared in 30 journals, predominantly in the general medical journals, led by New England Journal of Medicine (n=17), followed by expert medical journals, led by the Journal of the American Society of Nephrology (n=16) and Kidney International (n=16). The majority (83.7%) of T100 articles were published by teams involving ≥3 authors. T100 articles originated from 15 countries, led by the USA (n=81) followed by Italy (n=9). Among the T100 articles, 69 were clinical research, 25 were basic science, 21 were reviews, 5 were meta-analyses and 3 were clinical guidelines. Most clinical articles (55%) included patients with any cause of AKI, followed by the specific causes of contrast-induced AKI (25%) and cardiac surgery-induced AKI (15%).
ConclusionsThis study provides a historical perspective on the scientific progress on AKI, and highlights areas of research requiring further investigations and developments.
http://ift.tt/2abpHYX
Association of dental and periodontal disease with chronic kidney disease in patients of a single, tertiary care centre in Thailand
Background
Several studies have shown an association between oral diseases and chronic kidney disease (CKD), and regular oral care may be an important strategy for reducing the burden of CKD. The objective of this study was therefore to evaluate the association between dental and periodontal diseases in Thai patients with various stages of CKD.
MethodsThis was designed as a cross-sectional study and was performed between 2011 and 2012. The inclusion criteria were age >20 years and a diagnosis of CKD for at least 90 days. Data from medical records were collected, clinical oral examination was performed, and data were statistically analysed.
ResultsA total of 129 patients with different stages of CKD were included. Ninety-eight (76%) were men. The age range was 30–86 years. The Decay, Missing and Filling Tooth Index and the number of missing teeth were higher in the group with moderate CKD than in the control group (21 vs 17.5, p=0.045, 13 vs 8 p=0.01, respectively). Serum albumin levels decreased when estimated glomerular filtration rate (eGFR) was in decline (=0.33; p=0.002). Severe periodontitis was significantly higher in the 'more severe CKD group' (eGFR <60 mL/min/1.73 m2) than in the 'less severe CKD group' (eGFR 60–90 mL/min/1.73 m2; 24% vs 9%, p=0.03). Severe periodontitis, eGFR <30 mL/min/1.73 m2 and brushing teeth more than once a day were associated with hypoalbuminaemia (defined as <3.8 g/dL) (OR (95% CI) 5.88 (1.64 to 21.11), 5.80 (1.58 to 21.35) and 0.16 (0.05 to 0.60), respectively).
ConclusionsSevere periodontal diseases were more prevalent in patients with more severe CKD than in those with less severe CKD. The novel association of serum albumin levels with periodontal status was demonstrated in progressive stages of CKD. Dental intervention may be beneficial from the early stages of CKD.
http://ift.tt/2aoiyYp
Initial experience using a femtosecond laser cataract surgery system at a UK National Health Service cataract surgery day care centre
Objectives
To describe the initial outcomes following installation of a cataract surgery laser system.
SettingNational Health Service cataract surgery day care unit in North London, UK.
Participants158 eyes of 150 patients undergoing laser-assisted cataract surgery.
InterventionsLaser cataract surgery using the AMO Catalys femtosecond laser platform.
Primary and secondary outcome measuresPrimary outcome measure: intraoperative complications including anterior and posterior capsule tears. Secondary outcome measures: docking to the laser platform, successful treatment delivery, postoperative visual acuities.
ResultsMean case age was 67.7±10.8 years (range 29–88 years). Docking was successful in 94% (148/158 cases), and in 4% (6/148 cases) of these, the laser delivery was aborted part way during delivery due to patient movement. A total of 32 surgeons, of grades from junior trainee to consultant, performed the surgeries. Median case number per surgeon was 3 (range from 1–20). The anterior capsulotomy was complete in 99.3% of cases, there were no anterior capsule tears (0%). There were 3 cases with posterior capsule rupture requiring anterior vitrectomy, and 1 with zonular dialysis requiring anterior vitrectomy (4/148 eyes, 2.7%). These 4 cases were performed by trainee surgeons, and were either their first laser cataract surgery (2 surgeons) or their first and second laser cataract surgeries (1 surgeon).
ConclusionsDespite the learning curve, docking and laser delivery were successfully performed in almost all cases, and surgical complication rates and visual outcomes were similar to those expected based on national data. Complications were predominately confined to trainee surgeons, and with the exception of intraoperative pupil constriction appeared unrelated to the laser-performed steps.
http://ift.tt/2abpWD3
Sex differences in the risk profile of hypertension: a cross-sectional study
Objective
To assess the socioeconomic and behavioural risk factors associated with hypertension among a sample male and female population in India.
SettingCross-sectional survey data from a Health and Demographic Surveillance System (HDSS) of rural West Bengal, India was used.
Participants27 589 adult individuals (13 994 males and 13 595 females), aged ≥18 years, were included in the study.
Primary and secondary outcome measuresHypertension was defined as mean systolic blood pressure (SBP) ≥140 mm Hg or diastolic blood pressure (DBP) ≥90 mm Hg, or if the subject was undergoing regular antihypertensive therapy. Prehypertension was defined as SBP 120–139 mm Hg and DBP 80–89 mm Hg. Individuals were categorised as non-normotensives, which includes both the prehypertensives and hypertensives. Generalised ordered logit model (GOLM) was deployed to fulfil the study objective.
ResultsOver 39% of the men and 25% of the women were prehypertensives. Almost 12.5% of the men and 11.3% of the women were diagnosed as hypertensives. Women were less likely to be non-normotensive compared to males. Odds ratios estimated from GOLM indicate that women were less likely to be hypertensive or prehypertensive, and age (OR 1.04, 95% CI 1.03 to 1.05; and OR 1.08, 95% CI 1.07 to 1.09 for males and females, respectively) and body mass index (OR 1.64, 95% CI 1.38 to 1.97 for males; and OR 1.32, 95% CI 1.08 to 1.60 for females) are associated with hypertension.
ConclusionsAn elevated level of hypertension exists among a select group of the rural Indian population. Focusing on men, an intervention could be designed for lifestyle modification to curb the prevalence of hypertension.
http://ift.tt/2aohOT8
Special Collection: Cell-Based Therapy for Bone Regeneration
Tissue Engineering Part A , Vol. 0, No. 0.
http://ift.tt/2aiZRlj
Mercy Doc Appointed to National Academies' Quality Roundtable
http://ift.tt/2ao6AOF
Mercy Gives $600,000 for Community Needs
http://ift.tt/2ao71bF
"Pokemon Go" is Latest Lesson in Digital Distractions
http://ift.tt/2ao6S82
Forming a Doctor-Patient Relationship
http://ift.tt/2abex6m
Mercy Ranks in Top 5 Again and Again
http://ift.tt/2abf9c1
Sister’s Legacy Lives on through New Cancer Center
http://ift.tt/2abeTtv
More Hospitals Seek Software Support from Mercy
http://ift.tt/29VDq6r
Mercy Named Most Wired for 13th Time
http://ift.tt/29xQXnQ
Beauty Queen’s Dream Still Alive
http://ift.tt/2abeGGZ
Using Technology to Affect Influenza Vaccine Coverage Among Children With Chronic Respiratory Conditions
Influenza presents additional burdens for children with chronic respiratory conditions. Influenza vaccinations may reduce complications, yet approximately half of children remain unprotected. Evidence supports integration of text and e-mail into multicomponent strategies to increase influenza vaccination rates among children with chronic respiratory conditions.
http://ift.tt/2aLA5qK
Determination of Trace Water Content in Petroleum and Petroleum Products
http://ift.tt/2ax49us
Fine needle aspiration cytology of cervical lymph node involvement by ovarian serous borderline tumor
CytoJournal 2016 13(1):16-16
Serous borderline tumor (SBT) involving a cervical lymph node is extremely rare. In addition, fine needle aspiration (FNA) cytology of the involved cervical lymph node shares tremendous morphologic similarity with other low-grade papillary carcinomas. Thus, it can be easily misdiagnosed as metastatic carcinoma. A 42-year-old female had a history of bilateral SBT and postbilateral salpingo-oophorectomy. She presented with left cervical lymphadenopathy 6 months later. FNA cytology showed a low-grade papillary neoplasm with psammoma bodies. Needle core biopsy along with immunostains was diagnostic of cervical lymph node involvement (LNI) of SBT. although extremely rare, cervical LNI can be found in patients with SBTs. FNA cytology, sometimes, is indistinguishable from metastatic papillary adenocarcinoma. Cell block or needle core biopsy is essential to make the correct diagnosis.
http://ift.tt/2awXiAQ
CytoJournal Quiz Cases: Publishing open-access, PubMed-searchable cytopathology cases with educational messages
CytoJournal 2016 13(1):15-15
http://ift.tt/2ayQ2kO
Tuberculous lymphadenitis: Comparison of cytomorphology, Ziehl-Neelsen staining, and rapid mycobacterial culture at a pediatric superspecialty hospital
CytoJournal 2016 13(1):17-17
Background: To evaluate and compare the role of Ziehl-Neelsen (ZN) staining and mycobacterial culture in diagnosis of tuberculous lymphadenitis. Materials and Methods: A total of 56 fine needle aspirations (FNAs) from patients who were clinically suspected to have tuberculous lymphadenitis were included. Acid-fast Bacilli detection was attempted by ZN staining on smears as well as culture on Middlebrook 7H9 broth. Percentage positivity of both smears and culture was calculated. Results: Of the 56 cases, 46 showed cytomorphological features consistent with tuberculosis (TB). The most common pattern was only necrosis in 37 cases followed by necrotizing granulomas in 13 cases. ZN-stained smears were positive in 40 cases while culture was positive in only 27 cases. The highest smear and culture positivity was noted in cases with only necrosis. In six cases, diagnosis of TB was made on culture alone since smear was negative in these cases. Conclusion: FNA is a reliable technique for early and accurate diagnosis of tuberculous lymphadenitis in many cases. Mycobacterial culture by newer rapid techniques can assist in bacillary detection in smear-negative cases and also allows for drug sensitivity testing. Hence, culture should be resorted to in such cases.
http://ift.tt/2awWVq7
Contrasting female-male mortality ratios after routine vaccinations with pentavalent vaccine versus measles and yellow fever vaccine. A cohort study from urban Guinea-Bissau
Publication date: Available online 27 July 2016
Source:Vaccine
Author(s): Ane B. Fisker, Sofie Biering-Sørensen, Najaaraq Lund, Queba Djana, Amabelia Rodrigues, Cesario L. Martins, Christine S. Benn
BackgroundIn addition to protection against the target diseases, vaccines may have non-specific effects (NSEs). Measles vaccine (MV) has beneficial NSEs, providing protection against non-measles deaths, most so for girls. By contrast, though protecting against diphtheria, tetanus and pertussis, DTP vaccine is associated with increased female mortality relative to male mortality. In 2008, Guinea-Bissau replaced DTP with the DTP-containing pentavalent vaccine (Penta; DTP-H. influenza type B-Hepatitis B) at 6, 10 and 14weeks and yellow fever vaccine (YF) was to be given with MV. We investigated possible sex-differential mortality rates following Penta and MV+YF vaccination.MethodsBandim Health Project (BHP) registers vaccines given by the three government health centres in the study area and vital status through demographic surveillance. We assessed the association between sex and mortality by vaccination status in Cox proportional hazards models with age as underlying timescale. Follow-up was censored at a subsequent vaccination contact or after 6months of follow-up.ResultsBetween September 2008 and April 2011, we registered 23,448 vaccination contacts for children aged 42–365days; 17,313 were for Penta and 3028 for MV (2907 co-administered with YF). During follow-up 112 children died. The female/male mortality rate ratio was 1.73 (1.11–2.70) following Penta and 0.38 (0.12–1.19) after MV (p=0.02 for same effect). Adjusting for maternal education or weight-for-age at the time of vaccination did not change the estimates.ConclusionPenta appears to have the same negative effects on mortality as those seen for DTP. Assessing post-vaccination mortality for boys and girls is necessary to improve the vaccination programme.
http://ift.tt/2ayQlw3
Changes in the anti-HBc profile of infants born to HBV infected mothers from Iran
Source:Vaccine
Author(s): Mohammad Reza Hasanjani Roushan, Fayyaz Saedi, Shima Soleimani, Masomeh Baiany
From 2007 to 2014, 328 infants born to hepatitis B surface antigen (HBsAg) positive mothers, who received passive-active immunization against hepatitis B at birth were tested for HBsAg, antibody to hepatitis B core antigen (anti-HBc) and antibody to hepatitis B surface antigen (anti-HBs) at 12–15months of age. Thirteen (4%) cases were HBsAg positive. Forty-four infants who were anti-HBs, anti-HBc positive (group 1) and twenty-one infants who were anti-HBc positive alone (group 2) were identified. Both groups were followed-up annually for testing anti-HBs and anti-HBc to verify if anti-HBc was of maternal origin. In group 1, anti-HBc disappeared in 41 cases at month 24, and it disappeared from the remaining 3 cases at month 36. In group 2, anti-HBc disappeared in 18 cases at month 24 and in the remaining 3 cases at month 36. The results show that maternal anti-HBc may persist up to 3years in some children.
http://ift.tt/2awWyMp
Impact of PCV7/PCV13 introduction on invasive pneumococcal disease (IPD) in young children: Comparison between meningitis and non-meningitis IPD
Source:Vaccine
Author(s): S. Ben-Shimol, D. Greenberg, N. Givon-Lavi, Y. Schlesinger, D. Miron, S. Aviner, R. Dagan
BackgroundThe worldwide introduction of pneumococcal conjugate vaccines (PCV) into National Immunization Programs resulted in rapid and substantial reduction of invasive pneumococcal disease (IPD) rates in children. However, the reduction of meningitis vs. non-meningitis IPD (nm-IPD) was not yet fully elucidated. We compared 7-valent and 13-valent PCV (PCV7 and PCV13) impact on pneumococcal-meningitis vs. nm-IPD in Israeli children <5years.MethodsWe conducted an ongoing nationwide, prospective, population-based, active surveillance. PCV7 and PCV13 were implemented in Israel in July 2009 and November 2010, respectively. All pneumococcal isolates (blood and/or CSF) from IPD episodes in children <5years from July 2000 through June 2015 were included. Extrapolation for missing serotypes (34.7% of all isolates) was conducted.Results4163 IPD cases were identified; 3739nm-IPD (89.8%) and 424 meningitis (10.2%). During the pre-PCV period (2000–2008), children <12months constituted 52.1% and 33.7% of meningitis and nm-IPD, respectively (p<0.001). The respective proportions of non-PCV13 serotypes (non-VT) were 18.2% vs. 10.1%, (p<0.001).Comparing the last study year (2014–2015) to the mean of pre-PCV period, meningitis incidence in children <5years decreased non-significantly by 27%, while nm-IPD decreased significantly by 69%. Dynamic rates of meningitis and nm-IPD caused by PCV13 serotypes were similar, with 93% and 95% overall reductions, respectively. However, non-VT increased in meningitis relatively to nm-IPD, mainly in children <24months. Serotype 12F rose sharply and significantly since 2009–2010 through 2014–2015 (28.6% of all non-VT meningitis in children <24m).ConclusionsThe overall impact of PCV7/PCV13 in children <5years in Israel was less prominent in meningitis than in nm-IPD. This could be attributed to the younger age of children with meningitis and differences in causative serotypes between the two groups, as the decline of the incidence of meningitis and nm-IPD caused by vaccine-serotypes is similar. Continuous monitoring of meningitis and nm-IPD is warranted.
http://ift.tt/2ayQdNb
Complementary medicine and childhood immunisation: A critical review
Source:Vaccine
Author(s): Jon Wardle, Jane Frawley, Amie Steel, Elizabeth Sullivan
BackgroundVaccination is one of the most significant and successful public health measures of recent times. Whilst the use of complementary medicine (CM) continues to grow, it has been suggested that CM practitioners hold anti-vaccination views. The objective of this critical review is to examine the evidence base in relation to CM practitioner attitudes to childhood vaccination alongside attitudes to vaccination among parents who visit CM practitioners and/or use CM products.MethodsA database search was conducted in MEDLINE, PubMed, CINAHL, EMBASE and AMED for research articles published between January 2000 and September 2015 that evaluated either CM practitioner or CM user attitudes and intention towards childhood vaccination.ResultsA total of 23 articles were found that detailed the attitudes of CM practitioners to vaccination. A further 16 papers examined the association between the use of CM products and visits to CM practitioners, and immunisation. The interface between CM and vaccination is complex, multi-factorial and often highly individualised. The articles suggest that there is no default position on immunisation by CM practitioners or parents who use CM themselves, or for their children. Although CM use does seem positively associated with lower vaccination uptake, this may be confounded by other factors associated with CM use (such as higher income, higher education or distrust of the medical system), and may not necessarily indicate independent or predictive relationships.ConclusionsAlthough anti-vaccination sentiment is significant amongst some CM practitioners, this review uncovers a more nuanced picture, and one that may be more agreeable to public health values than formerly assumed.
http://ift.tt/2awWHPI
Safety evaluation of adenovirus type 4 and type 7 vaccine live, oral in military recruits
Publication date: Available online 27 July 2016
Source:Vaccine
Author(s): Azhar Choudhry, Julie Mathena, Jessica D. Albano, Margaret Yacovone, Limone Collins
Before the widespread adoption of vaccination, adenovirus type 4 and type 7 were long associated with respiratory illnesses among military recruits. When supplies were depleted and vaccination was suspended in 1999 for approximately a decade, respiratory illnesses due to adenovirus infections resurged. In March 2011, a new live, oral adenovirus vaccine was licensed by the US Food and Drug Administration and was first universally administered to military recruits in October 2011, leading to rapid, dramatic elimination of the disease within a few months. As part of licensure, a postmarketing study (Sentinel Surveillance Plan) was performed to detect potential safety signals within 42days after immunization of military recruits. This study retrospectively evaluated possible adverse events related to vaccination using data from the Armed Forces Health Surveillance Branch Defense Medical Surveillance System (DMSS) database. Among 100,000 recruits who received the adenovirus vaccine, no statistically significant greater risk of prespecified medical events was observed within 42days after vaccination when compared with a historical cohort of 100,000 unvaccinated recruits. In an initial statistical analysis of International Classification of Disease, 9th Revision, Clinical Modification codes, a statistically significant higher risk for 19 other (not prespecified) medical events occurring in 5 or more recruits was observed among vaccinated compared with unvaccinated groups. After case record data abstraction for attribution and validation, two events (psoriasis [21 vs 7 cases] and serum reactions [12 vs 4 cases]) occurred more frequently in the vaccinated cohort. A causal relation of these rare events with adenovirus vaccination could not be established given confounding factors in the DMSS, such as coadministration of other vaccines and incomplete or inaccurate medical information, for some recruits. Prospective surveillance assessing these uncommon, but potentially relevant, immune-related symptoms may be beneficial in defining potential causal association with adenovirus vaccination.
http://ift.tt/2awWyvT
To Your Health: NLM update: Salt linked to heart disease among CKD patients
Listen to the To Your Health: NLM update on Salt linked to heart disease among CKD patients. The transcript is also available.
Adults who have chronic kidney disease - and eat a diet high in salt - comparatively increase their odds of a heart attack or stroke, finds a pioneering study recently published in the Journal of the American Medical Association..
http://ift.tt/2aLeCy8
Molecular typing of human herpesvirus 8 among HIV positive in comparison to HIV-negative individuals in Iran
Abstract
It is still unclear whether different HHV-8 genotypes may have different pathogenic and tumorigenic properties associated with a diverse rate of disease progression. In some areas where genotype C was found to be prominent among classic KS patients, genotype A was shown to be more frequent among AIDS-associated KS patients. Genotype C was previously reported to be widespread in Iran, with genotype A being less frequent among patients with classic KS although no data are available with regards to the HHV-8 genotyping among Iranian HIV-infected patients. In order to analyze HHV-8 genotypes (ORF K1), 6 HIV-infected patients (with or without KS) and 22 HIV-negative subjects (classic/iatrogenic KS patients and IVDUs) were investigated using nested PCR. Genotype A was detected more frequently among HIV-infected patients with or without KS (3 out of 6) whereas genotype C was found more common among HIV-negative subjects including classic/iatrogenic KS patients and IVDSs (21 out of 22), and this difference was statistically significant (P = 0.044). In conclusion, our data further support the dominancy of HHV-8 genotype C in Iranian general population. Moreover, genotype A was more common among HIV-infected patients with or without KS. This article is protected by copyright. All rights reserved
http://ift.tt/2arrjzt
The association between human papillomavirus (HPV) 16, HPV18, and other HR-HPV viral load and the histological classification of cervical lesions: Results from a large-scale cross-sectional study
Abstract
Background
The relationship between HPV viral load and histological grades in the development of cervical cancer is in argument. It is helpful to better understand the association by quantitatively detecting viral load of HPV16, 18 and a pool of 12 other high risk HPV type (OT) independently on the samples of precancer and cancer.
Methods
A cross-sectional study was performed in five medical centers of China. Histological diagnosis made by local pathologists was adjudicated via a pathology expert panel. A fully automated real-time PCR test was used for the measurement of HPV16, 18, OT and human β-globin gene.
Results
A total of 2513 women [1341 normal, 209 low grade intraepithelial lesion (LSIL), 392 high grade intraepithelial lesion (HSIL), 520 squamous cell carcinoma (SCC) and 51 adenocarcinoma (ADC)] were included. There is a linear increase in the total 14 HPV viral load with histological grade from normal to SCC. This trend was not observed in HPV18 infection but HPV16. The viral load for OT was low in normal, peaked in LSIL and HSIL, and declined in SCC and ADC. In the co-infection of HPV16 and HPV18, HPV16 viral load was significantly higher than HPV18 in LSIL and HSIL. In co-infection of HPV16 and OT, higher HPV16 viral load was also seen in SCC and ADC.
Conclusions
Viral load of HPV16 increases with cervical lesion grade and is predominant in cervical cancer. HPV18 viral load is low in precancer, but going up in cancer. OT viral load shows inverse trend of HPV18. This article is protected by copyright. All rights reserved
http://ift.tt/2acFfAv
Heterogeneous effects of oil shocks on exchange rates: evidence from a quantile regression approach
The determinants of exchange rates have attracted considerable attention among researchers over the past several decades. Most studies, however, ignore the possibility that the impact of oil shocks on exchange...
http://ift.tt/2arnc6d
Genotoxicity reduction in bagasse waste of sugar industry by earthworm technology
The aim of the present study was to assess the genotoxicity reduction in post vermicompost feed mixtures of bagasse (B) waste using earthworm Eisenia fetida. The genotoxicity of bagasse waste was determined by us...
http://ift.tt/2acAxCu
Cervical disc arthroplasty (CDA) versus anterior cervical discectomy and fusion (ACDF) in symptomatic cervical degenerative disc diseases (CDDDs): an updated meta-analysis of prospective randomized controlled trials (RCTs)
This meta-analysis of randomized controlled trials (RCTs) aims to evaluate the efficacy and safety in cervical disc arthroplasty (CDA) and anterior cervical discectomy and fusion (ACDF) for treating cervical d...
http://ift.tt/2arnaeB
Establishing a framework to understand the regulation and control of dogs in urban environments: a case study of Melbourne, Australia
This study examines the effectiveness of animal management from a critical theory perspective, establishing a framework to describe the animal management activities of local government. In creating sustainable...
http://ift.tt/2aczLpr
To Your Health: NLM update: Exercise reduces cancer risks
Listen to the To Your Health: NLM update on Exercise reduces cancer risks. The transcript is also available.
Moderate exercise is associated with a reduced risk of 13 types of cancer in an international, comprehensive study recently published in JAMA Internal Medicine.
http://ift.tt/2aaMFPP
Endophenotype best practices
Source:International Journal of Psychophysiology
Author(s): William G. Iacono, Stephen M. Malone, Scott I. Vrieze
This review examines the current state of electrophysiological endophenotype research and recommends best practices that are based on knowledge gleaned from the last decade of molecular genetic research with complex traits. Endophenotype research is being oversold for its potential to help discover psychopathology relevant genes using the types of small samples feasible for electrophysiological research. This is largely because the genetic architecture of endophenotypes appears to be very much like that of behavioral traits and disorders: they are complex, influenced by many variants (e.g., tens of thousands) within many genes, each contributing a very small effect. Out of over 40 electrophysiological endophenotypes covered by our review, only resting heart, a measure that has received scant advocacy as an endophenotype, emerges as an electrophysiological variable with verified associations with molecular genetic variants. To move the field forward, investigations designed to discover novel variants associated with endophenotypes will need extremely large samples best obtained by forming consortia and sharing data obtained from genome wide arrays. In addition, endophenotype research can benefit from successful molecular genetic studies of psychopathology by examining the degree to which these verified psychopathology-relevant variants are also associated with an endophenotype, and by using knowledge about the functional significance of these variants to generate new endophenotypes. Even without molecular genetic associations, endophenotypes still have value in studying the development of disorders in unaffected individuals at high genetic risk, constructing animal models, and gaining insight into neural mechanisms that are relevant to clinical disorder.
http://ift.tt/2aaNdoF
Full title with Editorial board members
Source:International Journal of Psychophysiology, Volume 107
http://ift.tt/2anEqTA
Instructions to Authors
Source:International Journal of Psychophysiology, Volume 107
http://ift.tt/2aaO6gS
IOP-details
Source:International Journal of Psychophysiology, Volume 107
http://ift.tt/2anDxuy
-
Αλέξανδρος Γ. Σφακιανάκης Medicine by Alexandros G. Sfakianakis,Anapafseos 5 Agios Nikolaos 72100 Crete Greece,00302841026182,0030693260717...
-
Alimentary Pharmacology &Therapeutics, EarlyView. https://ift.tt/2qECBIJ
-
heory of COVID-19 pathogenesis Publication date: November 2020Source: Medical Hypotheses, Volume 144Author(s): Yuichiro J. Suzuki ScienceD...
