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https://www.readbyqxmd.com/read/29339274/geochemical-sources-of-metal-contamination-in-a-coal-mining-area-in-chhattisgarh-india-using-lead-isotopic-ratios
#1
Avijit Das, Subhra Sarita Patel, Rajeev Kumar, K V S S Krishna, Saikat Dutta, Manik Chandra Saha, Siladitya Sengupta, Dipayan Guha
A geochemical study of the trace metals and lead isotopic ratios of soil and sediments in Korba, Chhattisgarh, India is presented here for the first time. Korba, the nation's 'power hub' is also the fifth among its eighty-eight most critically polluted industrial hotspots. A very high mean concentration (in mg kg-1) of V (308), Cr (567), Mn (3442), Co (92), Cu (218), Zn (426), Pb (311), Th (123) and U (32) characterized the sediments of the studied area with mean Igeo values of the trace metals ranging from -2...
January 8, 2018: Chemosphere
https://www.readbyqxmd.com/read/29335914/accuracy-and-trending-of-non-invasive-hemoglobin-measurement-during-different-volume-and-perfusion-statuses
#2
Abdelmoneim Adel, Wael Awada, Bassant Abdelhamid, Heba Omar, Omnia Abd El Dayem, Ahmed Hasanin, Ashraf Rady
The evolution of non-invasive hemoglobin measuring technology would save time and improve transfusion practice. The validity of pulse co-oximetry hemoglobin (SpHb) measurement in the perioperative setting was previously evaluated; however, the accuracy of SpHb in different volume statuses as well as in different perfusion states was not well investigated. The aim of this work is to evaluate the accuracy and trending of SpHb in comparison to laboratory hemoglobin (Lab-Hb) during acute bleeding and after resuscitation...
January 15, 2018: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/29329052/efficient-and-cost-effective-generation-of-hepatocyte-like-cells-through-microparticle-mediated-delivery-of-growth-factors-in-a-3d-culture-of-human-pluripotent-stem-cells
#3
Zeinab Heidariyan, Mohammad Hossein Ghanian, Mohsen Ashjari, Zahra Farzaneh, Mostafa Najarasl, Mehran Rezaei Larijani, Abbas Piryaei, Massoud Vosough, Hossein Baharvand
Biomedical application of human pluripotent stem cell-derived hepatocyte-like cells (hPSC-HLCs) relies on efficient large-scale differentiation, which is commonly performed by a suspension culture of three-dimensional (3D) multicellular spheroids in bioreactors. However, this approach requires large amounts of growth factors (GFs) and the need to overcome limited diffusional transport posed by the inherent 3D structure of hPSC spheroids. Here, we have hypothesized that localized delivery of GFs by incorporation of GF-laden degradable polymeric microparticles (MPs) within the hPSC spheroids would circumvent such limitations...
January 2, 2018: Biomaterials
https://www.readbyqxmd.com/read/29318993/a-case-of-severe-plasmodium-falciparum-malaria-co-infected-with-hiv-improved-with-exchange-transfusion
#4
Ayşe Sağmak Tartar, Ayhan Akbulut, Ömür Gökmen Sevindik, Hatice Handan Akbulut, Kutbeddin Demirdağ
In our country, within years, despite a dramatic drop in the number of patients with malaria, a dramatic increase in the number of patients with import malaria is noteworthy. A 32-year-old male patient presented with fever, shivering, malaise, and loss of appetite. He had travelled to West Africa. Laboratory findings were as follows: hemoglobin: 8.8 g/dL and anti-HIV: positive. Microscopic examinations of thin blood smears and thick blood preparations revealed widespread trophozoites. The presence of double-dotted ring forms and banana-shaped gametocytes resulted in Plasmodium falciparum malaria being diagnosed...
December 2017: Türkiye Parazitolojii Dergisi
https://www.readbyqxmd.com/read/29316715/twelve-weeks-of-medium-intensity-exercise-therapy-affects-the-lipoprotein-profile-of-multiple-sclerosis-patients
#5
Winde Jorissen, Tim Vanmierlo, Inez Wens, Veerle Somers, Bart Van Wijmeersch, Jeroen F Bogie, Alan T Remaley, Bert O Eijnde, Jerome J A Hendriks
Multiple sclerosis (MS) is an inflammatory auto-immune disease of the central nervous system (CNS). Serum glucose alterations and impaired glucose tolerance (IGT) are reported in MS patients, and are commonly associated with the development of cardio-metabolic co-morbidities. We previously found that a subgroup of MS patients shows alterations in their lipoprotein profile that are similar to a pre-cardiovascular risk profile. In addition, we showed that a high-intensity exercise training has a positive effect on IGT in MS patients...
January 8, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29304819/heavy-metal-exposure-and-nasal-staphylococcus-aureus-colonization-analysis-of-the-national-health-and-nutrition-examination-survey-nhanes
#6
Shoshannah Eggers, Nasia Safdar, Kristen Mc Malecki
BACKGROUND: Heavy metals including lead and cadmium can disrupt the immune system and the human microbiota. and are increasingly of concern with respect to the propogation of antibiotic-resistence. Infection by methicillin-resistant Staphylococcus aureus (MRSA) is a major cause of global morbidity and mortality. Heavy metal exposure may be associated with increased MRSA colonization and infection, and a decrease in methicillin-susceptible Staphylococcus aureus (MSSA) through co-selection mechanisms and natural selection of antibiotic resistance in the presence of heavy metals...
January 5, 2018: Environmental Health: a Global Access Science Source
https://www.readbyqxmd.com/read/29302896/comparison-of-the-accuracy-of-noninvasive-hemoglobin-monitoring-for-preoperative-evaluation-between-adult-and-pediatric-patients-a-retrospective-study
#7
Yong-Hee Park, Seho Lim, Hyun Kang, Hwa-Yong Shin, Chong Wha Baek, Young Cheol Woo
We measured noninvasive hemoglobin (SpHb) levels during the pre-anesthesia visit in patients planning elective surgery. Differences between SpHb and laboratory-measured hemoglobin (Hblab) were compared between adult and pediatric patients. In the pre-anesthesia visiting office, we routinely monitor noninvasive Hb levels with oxygen saturation and heart rate using Masimo Radical-7® Pulse CO-Oximetry (Masimo Corp., Irvine, CA, USA). We attached the R1 20 (body weight, 10-50 kg) or R1 25 (body weight > 30 kg) probe on the index finger...
January 4, 2018: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/29295584/mortality-rate-associated-with-admission-hyperglycemia-in-traumatic-femoral-fracture-patients-is-greater-than-non-diabetic-normoglycemic-patients-but-not-diabetic-normoglycemic-patients
#8
Cheng-Shyuan Rau, Shao-Chun Wu, Yi-Chun Chen, Peng-Chen Chien, Hsiao-Yun Hsieh, Pao-Jen Kuo, Ching-Hua Hsieh
Background: Admission hyperglycemia is associated with increased morbidity and mortality in trauma patients. However, admission hyperglycemia is not only associated with stress-induced hyperglycemia (SIH) but also with diabetic hyperglycemia (DH); furthermore, patients with normoglycemia may not only have non-diabetic normoglycemia (NDN) but also have a possibility of diabetic normoglycemia (DN), with the diabetes under control. This study aimed to assess the effects of SIH and DH on the mortality outcomes of traumatic femoral fracture patients with NDN and DN...
December 25, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29286954/selective-%C3%A3-1-blockers-are-not-associated-with-new-onset-diabetes-mellitus-in-hypertensive-patients
#9
Yoonjee Park, Byoung Geol Choi, Seung-Woon Rha, Man Jong Baek, Yang Gi Ryu, Se Yeon Choi, Jae Kyeong Byun, Min Suk Shim, Ahmed Mashaly, Hu Li, Won Young Jang, Woohyeun Kim, Jun Hyuk Kang, Jah Yeon Choi, Eun Jin Park, Sung Hun Park, Sunki Lee, Jin Oh Na, Cheol Ung Choi, Hong Euy Lim, Eung Ju Kim, Chang Gyu Park, Hong Seog Seo, Dong Joo Oh
BACKGROUND: Although ß-blockers are known to increase new-onset diabetes mellitus (DM), previous evidence have been controversial. It has been suggested that newer vasodilatory ß-blockers yield better glycemic control than older nonselective agents. The aim of this study was to evaluate the diabetogenicity of currently used newer ß-blockers based on ß1 receptor selectivity in a series of Asian population. METHODS: We investigated a total of 65,686 hypertensive patients without DM from 2004 to 2014...
January 2018: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/29285611/process-induced-degradation-of-bioresorbable-pdlga-in-bone-tissue-scaffold-production
#10
H Little, S A Clarke, E Cunningham, F Buchanan
Process-induced degradation of clinically relevant resorbable polymers was investigated for two thermal techniques, filament extrusion followed by fused deposition modelling (FDM). The aim was to develop a clear understanding of the relationship between temperature, processing time and resultant process-induced degradation. This acts to address the current knowledge gap in studies involving thermal processing of resorbable polymers. Poly(DL-lactide-co-glycolide) (PDLGA) was chosen for its clinically relevant resorption properties...
December 28, 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/29273540/combined-disc-pelletisation-and-thermal-treatment-of-mswi-fly-ash
#11
Florian Huber, Hannes Herzel, Christian Adam, Ole Mallow, Dominik Blasenbauer, Johann Fellner
An environmentally friendly and cost efficient way for the management of municipal solid waste incineration (MSWI) fly ash represents its thermal co-treatment together with combustible waste. However, the safe introduction and storage of MSWI fly ash in the waste bunker is challenging and associated with severe problems (e.g. dust emissions, generation of undefined lumps and heat in case of moistened MSWI fly ash). Therefore, the aim of this study is to investigate the suitability of pelletisation as a pretreatment of MSWI fly ash...
December 20, 2017: Waste Management
https://www.readbyqxmd.com/read/29247579/peg-interferon-and-ribavirin-treatment-in-hiv-hcv-co-infected-patients-in-thailand-efficacy-safety-and-pharmacokinetics
#12
E J Smolders, N Thammajaruk, C T M M de Kanter, A Colbers, P Chaiyahong, T Cuprasitrut, S Chittmittraprap, T Apornpong, S Khemnark, P Tangkijvanich, D M Burger, A Avihingsanon
OBJECTIVE: In Thailand, 7.2% of HIV patients are co-infected with hepatitis C virus (HCV) and these patients are treated with peg-interferon + ribavirin (PR) for their HCV-infection. This study evaluates efficacy and safety of PR treatment and pharmacokinetics of ribavirin in this population. METHODS: HIV/HCV co-infected Thai patients were treated with PR for 24 or 48 weeks. R plasma concentrations were measured during treatment. Sustained virological response 24 weeks after end of treatment (SVR24) was used to describe efficacy...
December 16, 2017: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/29217176/a-strong-adjuvant-based-on-glycol-chitosan-coated-lipid-polymer-hybrid-nanoparticles-potentiates-mucosal-immune-responses-against-the-recombinant-chlamydia-trachomatis-fusion-antigen-cth522
#13
Fabrice Rose, Jeanette Erbo Wern, Francesca Gavins, Peter Andersen, Frank Follmann, Camilla Foged
Induction of mucosal immunity with vaccines is attractive for the immunological protection against pathogen entrance directly at the site of infection. An example is infection with Chlamydia trachomatis (Ct), which is the most common sexually transmitted infection in the world, and there is an unmet medical need for an effective vaccine. A vaccine against Ct should elicit protective humoral and cell-mediated immune (CMI) responses in the genital tract mucosa. We previously designed an antibody- and CMI-inducing adjuvant based on poly(dl-lactic-co-glycolic acid) (PLGA) nanoparticles modified with the cationic surfactant dimethyldioctadecylammonium bromide and the immunopotentiator trehalose-6,6'-dibehenate...
December 4, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/29212425/sustainable-recovery-of-valuable-metals-from-spent-lithium-ion-batteries-using-dl-malic-acid-leaching-and-kinetics-aspect
#14
Conghao Sun, Liping Xu, Xiangping Chen, Tianyun Qiu, Tao Zhou
An eco-friendly and benign process has been investigated for the dissolution of Li, Co, Ni, and Mn from the cathode materials of spent LiNi1/3Co1/3Mn1/3O2 batteries, using DL-malic acid as the leaching agent in this study. The leaching efficiencies of Li, Co, Ni, and Mn can reach about 98.9%, 94.3%, 95.1%, and 96.4%, respectively, under the leaching conditions of DL-malic acid concentration of 1.2 M, hydrogen peroxide content of 1.5 vol.%, solid-to-liquid ratio of 40 g l-1, leaching temperature of 80°C, and leaching time of 30 min...
December 1, 2017: Waste Management & Research
https://www.readbyqxmd.com/read/29200161/noninvasive-measurement-of-hemoglobin-using-spectrophotometry-is-it-useful-for-the-critically-ill-child
#15
Basak Akyildiz
This study compared the accuracy of noninvasively measuring hemoglobin using spectrophotometry (SpHb) with a pulse CO-oximeter and laboratory hemoglobin (Hb) measurements. A total of 345 critically ill children were included prospectively. Age, sex, and factors influencing the reliabilityof SpHb such as SpO2, heart rate, perfusion index (PI), and vasoactive inotropic score were recorded. SpHb measurements were recorded during the blood draw and compared with the Hb measurement. Thirteen patients (low PI in 9 patients and no available Hb in 4 patients) were excluded and 332 children were eligible for final analysis...
December 1, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/29188533/effects-of-homocysteine-and-its-related-compounds-on-oxygen-consumption-of-the-rat-heart-tissue-homogenate-the-role-of-different-gasotransmitters
#16
Jovana Jakovljević Uzelac, Marina Stanić, Danijela Krstić, Mirjana Čolović, Dragan Djurić
The objective of this study was to investigate in vitro effects of 10 µM DL-homocysteine (DL-Hcy), DL-homocysteine thiolactone-hydrochloride (DL-Hcy TLHC), and L-homocysteine thiolactone-hydrochloride (L-Hcy TLHC) on the oxygen consumption of rat heart tissue homogenate, as well as the involvement of the gasotransmitters NO, H2S and CO in the effects of the most toxic homocysteine compound, DL-Hcy TLHC. The possible contribution of the gasotransmitters in these effects was estimated by using the appropriate inhibitors of their synthesis (N ω-nitro-L-arginine methyl ester (L-NAME), DL-propargylglycine (DL-PAG), and zinc protoporphyrin IX (ZnPPR IX), respectively)...
November 29, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/29187241/profile-of-red-blood-cell-morphologies-and-causes-of-anaemia-among-pregnant-women-at-first-clinic-visit-in-the-mount-cameroon-area-a-prospective-cross-sectional-study
#17
Judith K Anchang-Kimbi, Vera Ngenwie Nkweti, Helen Ngum Ntonifor, Tobias O Apinjoh, Hanesh Fru Chi, Rolland Bantar Tata, Eric Akum Achidi
OBJECTIVE: Anaemia is a serious problem in pregnancy in malaria-endemic countries. This study investigated red cell morphologies and possible causes of anaemia among pregnant women at first clinic visit. Venous blood samples from consented women were used to determine haemoglobin (Hb) levels, mean corpuscular volume (MCV) and mean corpuscular haemoglobin (MCH) using an automated haematology analyzer. Malaria parasitaemia was diagnosed by microscopy. Definitions were as follows: anaemia (Hb < 11...
November 29, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/29157965/polymer-based-nanoparticles-loaded-with-a-tlr7-ligand-to-target-the-lymph-node-for-immunostimulation
#18
Jérôme Widmer, Cédric Thauvin, Inès Mottas, Van N'guyen, Florence Delie, Eric Allémann, Carole Bourquin
Small-molecule agonists for the Toll-like receptors (TLR) 7 and 8 are effective for the immunotherapy of skin cancer when used as topical agents. Their systemic use has however been largely unsuccessful due to dose-limiting toxicity. We propose a polymer-based nanodelivery system to target resiquimod, a TLR7 ligand, to the lymph node in order to focus the immunostimulatory activity and to prevent a generalized inflammatory response. We demonstrate successful encapsulation of resiquimod in methoxypoly(ethylene glycol)-b-poly(DL-lactic acid) (mPEG-PLA) and mixed poly(DL-lactic-co-glycolic acid) (PLGA)/mPEG-PLA nanoparticles...
November 17, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/29157798/euglycemic-diabetic-ketoacidosis-secondary-to-dapagliflozin-use-a-case-report
#19
Felicity Brown, Tamara McColl
BACKGROUND: Sodium-glucose co-transporter-2 (SGLT2) inhibitors are a novel class of oral antihyperglycemic agents. They are associated with rare cases of euglycemic diabetic ketoacidosis (DKA), which presents a diagnostic challenge in the emergency department (ED) and potentially severe consequences if missed. CASE REPORT: A 53-year-old man with type 2 diabetes mellitus and a recent Roux-en-Y gastric bypass surgery presented to the ED with nausea, vomiting, and generalized abdominal pain...
November 17, 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29156335/thyroid-disruption-and-reduced-mental-development-in-children-from-an-informal-e-waste-recycling-area-a-mediation-analysis
#20
Lian Liu, Bo Zhang, Kun Lin, Yuling Zhang, Xijin Xu, Xia Huo
This paper aims to evaluate the effects of thyroid disruption on the mental development of children. A total of 258 three-year-old children in Guiyu (e-waste-exposed group) and Nanao (reference group), China were examined. FT3, FT4, TSH, lead (BPb) and cadmium (BCd) in blood were determined, and cognitive and language scores of children were assessed based on the Bayley Scales of Infant Development III. Stepwise multiple regression was used to estimate the relationship between heavy metals and cognitive and language scores; mediation analysis was performed to determine whether thyroid disruption was mechanistically involved...
November 13, 2017: Chemosphere
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