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https://www.readbyqxmd.com/read/29156877/comparison-of-microscopy-elisa-and-real-time-pcr-for-detection-of-giardia-intestinalis-in-human-stool-specimens
#1
Yunus Emre Beyhan, Zeynep Taş Cengiz
Background/aim: This study included patients who had digestive system complaints between August 2015 and October 2015. The research was designed to compare conventional microscopy with an antigen detection ELISA kit and the TaqMan-based real-time PCR (RT-PCR) technique for detection of Giardia intestinalis in human stool specimens. Materials and methods: Samples were concentrated by formalin-ether sedimentation technique and microscopic examinations were carried out on wet mount slides. A commercially available ELISA kit (Giardia CELISA, Cellabs, Brookvale, Australia) was used for immunoassay...
August 23, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/29156323/early-life-exposure-to-per-and-polyfluoroalkyl-substances-and-mid-childhood-lipid-and-alanine-aminotransferase-levels
#2
Ana M Mora, Abby F Fleisch, Sheryl L Rifas-Shiman, Jennifer A Woo Baidal, Larissa Pardo, Thomas F Webster, Antonia M Calafat, Xiaoyun Ye, Emily Oken, Sharon K Sagiv
BACKGROUND: Growing evidence suggests that exposure to per- and polyfluoroalkyl substances (PFASs) may disrupt lipid homeostasis and liver function, but data in children are limited. OBJECTIVE: We examined the association of prenatal and mid-childhood PFAS exposure with lipids and alanine aminotransferase (ALT) levels in children. METHODS: We studied 682 mother-child pairs from a Boston-area pre-birth cohort. We quantified PFASs in maternal plasma collected in pregnancy (median 9...
November 17, 2017: Environment International
https://www.readbyqxmd.com/read/29154145/evaluation-of-a-novel-grpr-antagonist-for-prostate-cancer-pet-imaging-64-cu-dotha2-peg-rm26
#3
Nematallah Mansour, Michel Paquette, Samia Ait-Mohand, Véronique Dumulon-Perreault, Brigitte Guérin
INTRODUCTION: Gastrin releasing peptide receptors (GRPRs) are significantly over-expressed on a large proportion of prostate cancers making them prime candidates for receptor-mediated nuclear imaging by PET. Recently, we synthesized a novel bifunctional chelator (BFC) bearing hydroxamic acid arms (DOTHA2). Here we investigated the potential of a novel DOTHA2-conjugated, (64)Cu-radiolabeled GRPR peptide antagonist, [D-Phe(6)-Sta(13)-Leu(14)-NH2]bombesin(6-14) (DOTHA2-PEG-RM26) to visualize prostate tumors by PET imaging...
October 23, 2017: Nuclear Medicine and Biology
https://www.readbyqxmd.com/read/29153713/facile-modification-of-nanodiamonds-with-hyperbranched-polymers-based-on-supramolecular-chemistry-and-their-potential-for-drug-delivery
#4
Hongye Huang, Meiying Liu, Ruming Jiang, Junyu Chen, Liucheng Mao, Yuanqing Wen, Jianwen Tian, Naigen Zhou, Xiaoyong Zhang, Yen Wei
Due to their excellent chemical stability and remarkable biocompatibility, nanodiamonds (NDs) have received widespread research attention by the biomedical field. The excellent water dispersibility of NDs has significant importance for biomedical applications. Therefore, surface modification of NDs with hydrophilic polymers has been extensively investigated over the past few decades. In this study, we synthesize β-CD containing hyperbranched polymer functionalized ND (ND-β-CD-HPG) composites with high water dispersibility via supramolecular chemistry based on the host-guest interactions between β-Cyclodextrin (β-CD) and adamantine (Ad)...
November 9, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/29152936/gastric-ultrasound-to-guide-anesthetic-management-in-elective-surgical-patients-non-compliant-with-fasting-instructions-a-retrospective-cohort-study
#5
Peter van de Putte, Jonathan van Hoonacker, Anahi Perlas
BACKGROUND: Perioperative aspiration leads to significant morbidity and mortality. Standard fasting periods are used to ensure an empty stomach in patients. Anesthesiologists are frequently confronted with cases of dubious adherence to these guidelines. Point-of-care gastric ultrasound is a diagnostic tool that offers information on the type and volume of gastric contents. METHODS: We performed a retrospective analysis of a departmental database containing clinical and sonographic information on elective surgical patients who had been non- compliant to the fasting guidelines...
November 17, 2017: Minerva Anestesiologica
https://www.readbyqxmd.com/read/29152606/ethanol-induced-steatosis-involves-impairment-of-lipophagy-associated-with-reduced-dynamin2-activity
#6
Karuna Rasineni, Terrence M Donohue, Paul G Thomes, Li Yang, Dean J Tuma, Mark A McNiven, Carol A Casey
Background: Lipid droplets (LDs), the organelles central to alcoholic steatosis, are broken down by lipophagy, a specialized form of autophagy. Here, we hypothesize that ethanol administration retards lipophagy by down-regulating Dynamin 2 (Dyn2), a protein that facilitates lysosome re-formation, contributing to hepatocellular steatosis. Methods: Primary hepatocytes were isolated from male Wistar rats fed Lieber-DeCarli control or EtOH liquid diets for 6-8 wk. Hepatocytes were incubated in complete medium (fed) or nutrient-free medium (fasting) with or without the Dyn2 inhibitor Dynasore or the Src inhibitor SU6656...
August 2017: Hepatol Commun
https://www.readbyqxmd.com/read/29152574/human-intestinal-tract-serves-as-an-alternative-infection-route-for-middle-east-respiratory-syndrome-coronavirus
#7
Jie Zhou, Cun Li, Guangyu Zhao, Hin Chu, Dong Wang, Helen Hoi-Ning Yan, Vincent Kwok-Man Poon, Lei Wen, Bosco Ho-Yin Wong, Xiaoyu Zhao, Man Chun Chiu, Dong Yang, Yixin Wang, Rex K H Au-Yeung, Ivy Hau-Yee Chan, Shihui Sun, Jasper Fuk-Woo Chan, Kelvin Kai-Wang To, Ziad A Memish, Victor M Corman, Christian Drosten, Ivan Fan-Ngai Hung, Yusen Zhou, Suet Yi Leung, Kwok-Yung Yuen
Middle East respiratory syndrome coronavirus (MERS-CoV) has caused human respiratory infections with a high case fatality rate since 2012. However, the mode of virus transmission is not well understood. The findings of epidemiological and virological studies prompted us to hypothesize that the human gastrointestinal tract could serve as an alternative route to acquire MERS-CoV infection. We demonstrated that human primary intestinal epithelial cells, small intestine explants, and intestinal organoids were highly susceptible to MERS-CoV and can sustain robust viral replication...
November 2017: Science Advances
https://www.readbyqxmd.com/read/29151785/children-s-lifestyle-behaviors-in-relation-to-anthropometric-indices-a-family-practice-study
#8
Aida Puia, Daniel-Corneliu Leucuta
Introduction: Obesity prevention in children represents one of the main concerns in primary care. In order to develop into a healthy adult, the child has to follow a healthy lifestyle in all aspects: nutritional, behavioral, physical and recreational. Our main goal was to identify which habits may influence the children's somatic development. Method: Our study, performed in a family practice, consisted in a questionnaire regarding physical activity, diet and use of electronic devices...
2017: Clujul Medical (1957)
https://www.readbyqxmd.com/read/29151349/changes-in-enzyme-structural-dynamics-studied-by-hydrogen-exchange-mass-spectrometry-ligand-binding-effects-or-catalytically-relevant-motions
#9
Courtney S Fast, Siavash Vahidi, Lars Konermann
It is believed that enzyme catalysis is facilitated by conformational dynamics of the protein scaffold that surrounds the active site. Yet, the exact nature of catalytically relevant protein motions remains largely unknown. Hydrogen/deuterium exchange (HDX) mass spectrometry (MS) reports on backbone H-bond fluctuations. HDX/MS therefore represents a promising avenue for probing the relationship between enzyme dynamics and catalysis. A seemingly straightforward strategy for such measurements involves comparative measurements during substrate turnover and in the resting state...
November 18, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/29151317/prevalence-and-risk-factors-for-helicobacter-pylori-infection-in-southwest-china-a-study-of-health-examination-participants-based-on-13c-urea-breath-test
#10
Jie Liu, Yonghong Wang, Qinghua Zhao, Rong Luo, Mingzhao Xiao, Mingjun Zhang, Weibo Xie
Background/aim: Helicobacter pylori (H. pylori) has a high prevalence in developing countries. We aimed to investigate the current prevalence of H. pylori, as well as its potential serum risk factors, in a population from southwest China.Materials and methods: This cross-sectional study included 10,912 subjects who received medical examinations at the First Affiliated Hospital of Chongqing Medical University in 2014. Data regarding physical examinations and biochemical measurements were collected, and H. pylori infection was diagnosed with a 13C-urea breath test...
November 13, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/29151224/the-potential-role-of-the-osteopontin-osteocalcin-osteoprotegerin-triad-in-the-pathogenesis-of-prediabetes-in-humans
#11
Giuseppe Daniele, Deidre Winnier, Andrea Mari, Jan Bruder, Marcel Fourcaudot, Zuo Pengou, Andrea Hansis-Diarte, Christopher Jenkinson, Devjit Tripathy, Franco Folli
AIMS: To examine the relationship between hormones involved in bone remodeling and glucose metabolism alterations in prediabetes. METHODS: Individuals (n = 43) with NGT (BMI = 31.1 ± 1.1 kg/m(2)) and individuals (n = 79) with impaired glucose regulation (IGR) (BMI = 31.9 ± 1.2 kg/m(2)) including subjects with IFG, IGT, and IFG-IGT underwent OGTT and DXA. Osteopontin (OPN), osteocalcin (OCN), osteoprotegerin (OPG), and PTH levels were measured at fasting...
November 18, 2017: Acta Diabetologica
https://www.readbyqxmd.com/read/29150990/prevalence-of-dry-eye-disease-and-its-association-with-dyslipidemia
#12
Krishnamoorthy Rathnakumar, Kaliaperumal Ramachandran, Durairaj Baba, Venkatachalam Ramesh, Velusamy Anebaracy, Ramachandran Vidhya, Rajamanickam Vinothkumar, Ramamurthy Poovitha, Rajagopalan Geetha
BACKGROUND: Dry eye disease (DED) is a common ocular surface disease significantly affecting the quality of life of patients. The aim of our study is to focus on the prevalence of DED and to determine the relationship between dyslipidemia and DED. METHODS: The study was performed with the age group of 25-70 years, who attended the ophthalmology outpatient department at Sri Lakshmi Narayana Institute of Medical Sciences with complaints of dry eye. A standard questionnaire was taken, and tear film tests were performed to diagnose dry eye...
November 18, 2017: Journal of Basic and Clinical Physiology and Pharmacology
https://www.readbyqxmd.com/read/29150696/impact-of-prolonged-overfeeding-on-skeletal-muscle-mitochondria-in-healthy-individuals
#13
Frederico G S Toledo, Darcy L Johannsen, Jeffrey D Covington, Sudip Bajpeyi, Bret Goodpaster, Kevin E Conley, Eric Ravussin
AIMS/HYPOTHESES: Reduced mitochondrial capacity in skeletal muscle has been observed in obesity and type 2 diabetes. In humans, the aetiology of this abnormality is not well understood but the possibility that it is secondary to the stress of nutrient overload has been suggested. To test this hypothesis, we examined whether sustained overfeeding decreases skeletal muscle mitochondrial content or impairs function. METHODS: Twenty-six healthy volunteers (21 men, 5 women, age 25...
November 17, 2017: Diabetologia
https://www.readbyqxmd.com/read/29149071/sleep-and-dietary-patterns-in-pregnancy-findings-from-the-gusto-cohort
#14
Linde van Lee, Ai-Ru Chia, See Ling Loy, Marjorelee Colega, Elaine K H Tham, Shirong Cai, Fabian Yap, Keith M Godfrey, Oon Hoe Teoh, Daniel Goh, Kok Hian Tan, Yap-Seng Chong, Birit F P Broekman, Mary F F Chong
Evidence on the association between sleep, diet, and eating behaviors in pregnant women is lacking. We examine this in a cohort of apparently healthy pregnant women. At 26-28 weeks gestation, 497 participants completed the Pittsburgh Sleep Quality Index to assess sleep and a 24-h recall to assess dietary intake. Diet quality was assessed by the Healthy Eating Index for pregnant women in Singapore (HEI-SGP) score and previously derived dietary patterns (vegetables-fruit-rice, seafood-noodles, and pasta-cheese-meat pattern)...
November 17, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29148894/metabolic-profile-in-patients-with-mild-obstructive-sleep-apnea
#15
Luciana Oliveira E Silva, Thais M Guimarães, Gabriela P Luz, Glaury Coelho, Luciana Badke, Ildonete R Almeida, Aline Millani-Carneiro, Sergio Tufik, Lia Bittencourt, Sonia M Togeiro
BACKGROUND: Mild obstructive sleep apnea (OSA) is a highly prevalent disorder in adults. However, it is not clear whether mild OSA has significant metabolic complications. This study examined the prevalence of metabolic syndrome (MS) in patients with mild OSA compared to control group. METHODS: Adults (18-65 years of age) of both genders with a body mass index (BMI) ≤35 kg/m(2) were included. The mild OSA group comprised of patients with an apnea-hypopnea index (AHI) score of ≥5 but ≤15 events/hr of sleep, independent of other symptoms...
November 17, 2017: Metabolic Syndrome and related Disorders
https://www.readbyqxmd.com/read/29148881/ultrarapid-influence-of-buprenorphine-on-major-depression-in-opioid-dependent-patients-a-double-blind-randomized-clinical-trial
#16
Jamshid Ahmadi, Mina Sefidfard Jahromi
OBJECTIVE: To examine the impact of different doses of buprenorphine on depression symptoms in opioid dependent inpatient over a three-day interval, using a randomized clinical trial design (RCT). DESIGN: Patients were randomized and assigned to three groups. PARTICIPANTS: Forty males who were admitted to an inpatient psychiatric unit and who fulfilled the DSM-5 criteria for both opioid dependence and major depressive disorder. INTERVENTION: Patients randomly received 32 mg, 64 mg, or 96 mg of buprenorphine as a single high dose...
November 17, 2017: Substance Use & Misuse
https://www.readbyqxmd.com/read/29148823/space-dust-collisions-as-a-planetary-escape-mechanism
#17
Arjun Berera
It is observed that hypervelocity space dust, which is continuously bombarding Earth, creates immense momentum flows in the atmosphere. Some of this fast space dust inevitably will interact with the atmospheric system, transferring energy and moving particles around, with various possible consequences. This paper examines, with supporting estimates, the possibility that by way of collisions the Earth-grazing component of space dust can facilitate planetary escape of atmospheric particles, whether they are atoms and molecules that form the atmosphere or larger-sized particles...
November 17, 2017: Astrobiology
https://www.readbyqxmd.com/read/29148796/layer-by-layer-self-assembly-of-polyelectrolytic-block-copolymer-worms-on-a-planar-substrate
#18
Nicholas Penfold, Andrew J Parnell, Marta Molina, Pierre Verstraete, Johan Smets, Steven P Armes
Cationic and anionic block copolymer worms are prepared by polymerization-induced self-assembly (PISA) via reversible addition-fragmentation chain transfer (RAFT) aqueous dispersion copolymerization of 2-hydroxypropyl methacrylate (HPMA) and glycidyl methacrylate (GlyMA), using a binary mixture of a non-ionic poly(ethylene oxide) (PEO) macromolecular RAFT agent and either a cationic poly([2-(methacryloyloxy)ethyl] trimethylammonium chloride) (PQDMA) or an anionic poly(potassium 3-sulfopropyl methacrylate) (PKSPMA) macromolecular RAFT agent...
November 17, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/29148430/low-dose-4d-cardiac-imaging-in-small-animals-using-dual-source-micro-ct
#19
Matthew Holbrook, Darin P Clark, Cristian T Badea
Micro-CT is widely used in preclinical studies, generating substantial interest in extending its capabilities in functional imaging applications such as blood perfusion and cardiac function. However, imaging cardiac structure and function in mice is challenging due to their small size and rapid heart rate. To overcome these challenges, we propose and compare improvements on two strategies for cardiac gating in dual-source, preclinical micro-CT: fast prospective gating (PG) and uncorrelated retrospective gating (RG)...
November 17, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/29147957/mobilization-of-endothelial-progenitor-cell-in-patients-with-acute-ischemic-stroke
#20
Yushuang Deng, Jian Wang, Guiqiong He, Fei Qu, Min Zheng
Endothelial progenitor cells (EPCs) have important effect in tissue repair in ischemic organs. The present study was conducted to demonstrate the mobilization of EPCs and its possible mechanism after acute ischemic stroke (AIS). A total of 148 individuals were examined, including 106 patients with ischemic stroke and 42 healthy controls. Seventy-one patients with imaging-confirmed AIS were examined at days 1, 7, 14, and 21 after stroke onset. Circulating EPCs were quantified by flow cytometry using CD133 and KDR surface markers...
November 16, 2017: Neurological Sciences
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