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EXCLI Journal

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https://www.readbyqxmd.com/read/28337118/toxicological-risk-at-workplace-and-toxicity-as-life-cycle-assessment-impact-category-substitution-of-solvents-as-an-example
#1
Thomas Schupp, Philipp Alexander Georg, Guenter Kirstein
Substitution of hazardous substances against less hazardous ones is a central requirement of the European Chemical Regulation REACH (European Regulation 1907/2006/EC). Hazardous substances emitted from products may not only affect the worker; drift off and distribution in the environment may finally result in exposure of the general population. This potential threat to health is covered by the impact category "toxicity" in Life Cycle Assessments. In this paper, we present a case of a substitution of volatile organic compounds in a reactive varnish, and compare the "old" formulation with the "new" formulation against health risk to the worker, and concerning the Life Cycle Assessment impact category "toxicity"...
2017: EXCLI journal
https://www.readbyqxmd.com/read/28337117/pharmacological-aspects-of-galantamine-for-the-treatment-of-alzheimer-s-disease
#2
Jae Kwang Kim, Sang Un Park
No abstract text is available yet for this article.
2017: EXCLI journal
https://www.readbyqxmd.com/read/28337116/assessment-of-usefulness-of-synchrotron-radiation-techniques-to-determine-arsenic-species-in-hair-and-rice-grain-samples
#3
Jun Lin, Guo-Fang Lin, Yu-Lan Li, Xiao-Yan Gao, Hui Du, Chao-Gang Jia, Hong-Chao Lu, Klaus Golka, Jian-Hua Shen
The arseniasis in Southwest Guizhou, China has been identified as a unique case of endemic arseniasis caused by exposure to indoor combustion of high As-content coal. Present investigation targeted the microdistribution and speciation of the element arsenic in human hair and environmental samples collected in one of the hyper-endemic villages of arseniasis in the area. Analyses were performed by micro-beam X-ray fluorescence (μ-XRF) and X-ray absorption fine structure (XAFS). The total As level in hair samples of diagnosed patients was detected at almost the same level as in their asymptomatic neighbors...
2017: EXCLI journal
https://www.readbyqxmd.com/read/28337115/hplc-dad-analysis-antinociceptive-and-anti-inflammatory-properties-of-the-ethanolic-extract-of-hyptis-umbrosa-in-mice
#4
Klécia S Dos Anjos, Heitor G Araújo-Filho, Marcelo C Duarte, Vicente C O Costa, Josean F Tavares, Marcelo S Silva, Jackson R G S Almeida, Nathália A C Souza, Larissa A Rolim, Irwin R A Menezes, Henrique D M Coutinho, Jullyana S S Quintans, Lucindo J Quintans-Júnior
Hyptis umbrosa (syn. Mesosphaerum sidifolium) (Lamiaceae Family) has been used to treat several conditions such as gastrointestinal disorders, skin infections, nasal congestion, fever and cramps. The objective of this study was to evaluate the chemical composition, analgesic and anti-inflammatory profiles of ethanol extract from leaves of Hyptis umbrosa (EEB). HPLC-DAD was used to determine the fingerprint chromatogram of the extract. Male Swiss mice were orally pretreated with EEB (100, 200 or 400 mg/kg; 60 min before initiating algesic stimulation) and antinociceptive activity was assessed using the acetic acid-induced writhing model, formalin test and hyperalgesia induced by glutamate or capsaicin...
2017: EXCLI journal
https://www.readbyqxmd.com/read/28337114/precondition-of-right-frontal-region-with-anodal-tdcs-can-restore-the-fear-memory-impairment-induced-by-acpa-in-male-mice
#5
Fariborz Manteghi, Mohammad Nasehi, Mohammad-Reza Zarrindast
Fear memory and learning cause behavioural patterns such as fight or flight responses, which increase survival probability, but unfit processing of fear memory and learning can lead to maladaptive behaviours and maladies such as phobias, Post-Traumatic Stress Disorder (PTSD) and anxiety disorders. The growing prevalence of these maladies shows the need to quest novel methods for their treatment. We used anodal transcranial direct current stimulation (tDCS) on the right frontal region as a precondition neuromodulator and arachidonylcyclopropylamide (ACPA), a selective CB1 cannabinoid receptor agonist, as a fear memory impairing agent to assess their effects on contextual and auditory fear conditioning (reliable model for fear studies)...
2017: EXCLI journal
https://www.readbyqxmd.com/read/28337113/chemical-composition-and-inhibitory-effects-of-water-extract-of-henna-leaves-on-reactive-oxygen-species-dna-scission-and-proliferation-of-cancer-cells
#6
Manish Kumar, Madhu Chandel, Paramjeet Kaur, Kritika Pandit, Varinder Kaur, Sandeep Kaur, Satwinderjeet Kaur
From the centuries, Lawsonia inermis L. (Henna) is utilized in traditional health care system as a medicinal and cosmetic agent. The present study was intended to assess antiradical, DNA protective and antiproliferative activity of water extract of Lawsonia inermis L. leaves (W-LI). Antioxidant activity was estimated using various in vitro assays such as DPPH, ABTS, superoxide anion radical scavenging, FRAP, deoxyribose degradation and DNA protection assay. Growth inhibitory effects of W-LI were assessed using MTT assay against different cancer cell lines viz...
2016: EXCLI journal
https://www.readbyqxmd.com/read/28337112/the-past-and-present-of-serum-aminotransferases-and-the-future-of-liver-injury-biomarkers
#7
REVIEW
Mitchell R McGill
Laboratory testing is important in the diagnosis and monitoring of liver injury and disease. Current liver tests include plasma markers of injury (e.g. aminotransferases, γ-glutamyl transferase, and alkaline phosphatase), markers of function (e.g. prothrombin time, bilirubin), viral hepatitis serologies, and markers of proliferation (e.g. α-fetoprotein). Among the injury markers, the alanine and aspartate aminotransferases (ALT and AST, respectively) are the most commonly used. However, interpretation of ALT and AST plasma levels can be complicated...
2016: EXCLI journal
https://www.readbyqxmd.com/read/28337111/hepato-and-nephroprotective-effects-of-bradykinin-potentiating-factor-from-scorpion-buthus-occitanus-venom-on-mercuric-chloride-treated-rats
#8
Muhammad M A Salman, Ahmed M Kotb, Mohie A M Haridy, Seddik Hammad
Bioactive peptides such as bradykinin potentiating factor (BPF), have, anti-oxidative, anti-inflammatory, immunomodulatory and ameliorative effects in chronic diseases and play a potential role in cancer prevention. It is known that the liver and kidney accumulate inorganic mercury upon exposure, which often leads to mercury intoxication in these organs. In this study, we investigated the effect of bradykinin potentiating factor (BPF), a scorpion venom peptide, on mercuric chloride-induced hepatic and renal toxicity in rats...
2016: EXCLI journal
https://www.readbyqxmd.com/read/28337110/the-effect-of-hydroalcoholic-extract-of-achillea-eriophora-dc-on-blood-pressure-of-anaesthetized-male-rat
#9
Sohrab Anvari, Aminollah Bahaoddini, Mahmoodreza Moein, Ahmad Reza Khosravi
Achillea eriophora (Asteraceae) is a medicinal plant commonly used in Iran. This study was performed to determine the cardiovascular effects of hydroethanolic extract of A. eriophora (HEAE) and the underlying mechanisms in anaesthetized rats. The acute effects of intravenous (i.v.) administration of different doses of HEAE (40, 50, 60, 80 mg/kg), and its probable interaction with cholinergic and nitrergic systems were investigated in the presence of ACh and NOS blocker (L-NAME) as well as ethanol (HEAE solvent in sham group)...
2016: EXCLI journal
https://www.readbyqxmd.com/read/28337109/discovery-of-novel-phthalimide-analogs-synthesis-antimicrobial-and-antitubercular-screening-with-molecular-docking-studies
#10
Heba S Rateb, Hany E A Ahmed, Sahar Ahmed, Saleh Ihmaid, Tarek H Afifi
In continuation of our endeavor towards the design and development of potent and effective antimicrobial agents, three series of phthalimide derivatives (4a-i, 5a-f, and 6a-c) were synthesized, fully characterized and evaluated for their potential antibacterial, antifungal and antimycobacterial activities. These efforts led to the discovery of nine compounds 4c, 4f, 4g, 4h, 4i, 5c, 5d, 5e, and 6c (MIC range from 0.49 to 31.5 μg/mL) with potent antibacterial, antifungal, and antimycobacterial activities. Ampicillin, ciprofloxacin, amphotericin B were used as references for antibacterial and antifungal screening respectively, while isoniazid was used as a reference for antimycobacterial testing...
2016: EXCLI journal
https://www.readbyqxmd.com/read/28337108/bromelain-capped-gold-nanoparticles-as-the-novel-drug-delivery-carriers-to-aggrandize-effect-of-the-antibiotic-levofloxacin
#11
Paramdeep Bagga, Tarique Mahmood Ansari, Hefazat Hussain Siddiqui, Asad Syed, Ali H Bahkali, Md Azizur Rahman, Mohd Sajid Khan
To develop bromelain capped gold nanoparticles (BRN capped Au-NPs) as the effective drug delivery carriers of the antibiotic levofloxacin (LvN) and evaluate antibacterial potential of its bioconjugated form compared to pure LvN. BRN capped Au-NPs were synthesized by in vitro method and bioconjugated to LvN using 1-ethyl-3-(3-dimethylamino-propyl)-carbodiimide as activator to form Au-BRN-LvN-NPs. These were characterized for mean particle size by dynamic light scattering analysis, zeta potential by Zetasizer nanosystem analysis and transmission electron microscopy (TEM) on carbon coated TEM copper grids by TEM respectively...
2016: EXCLI journal
https://www.readbyqxmd.com/read/28337107/lupane-type-triterpenes-and-their-anti-cancer-activities-against-most-common-malignant-tumors-a-review
#12
REVIEW
M H Cháirez-Ramírez, M R Moreno-Jiménez, R F González-Laredo, J A Gallegos-Infante, Nuria Elizabeth Rocha-Guzmán
In recent times, a great deal of interest has been motivated on plant derived compounds known as nutraceuticals. These compounds exert important beneficial activities that improve people's health status when are consumed regularly, and now they appear as a viable option to explore their possible therapeutic effects against diseases like cancer. Particularly, lupane-type triterpenes have shown great ability to modulate multiple cancer-related signaling pathways and processes, including NF-κB, Wnt/β-catenin, PI3K/Akt, apoptosis, and many other routes related to proliferation or cell death, which are uncontrolled in malignant tumors...
2016: EXCLI journal
https://www.readbyqxmd.com/read/28337106/aeg-1-is-associated-with-hypoxia-induced-hepatocellular-carcinoma-chemoresistance-via-regulating-pi3k-akt-hif-1alpha-mdr-1-pathway
#13
Yong Xie, De-Wu Zhong
Hypoxia is a common characteristic of hepatocellular carcinoma (HCC) associated with reduced response to chemotherapy, thus increasing the probability of tumor recurrence. Astrocyte elevated gene-1 (AEG-1) has been involved in a wide array of cancer progression including proliferation, chemoresistance, angiogenesis and metastasis, but its effect on HCC chemoresistance induced by hypoxia is unclear. In this study, expression of AEG-1 and multiple drug resistance (MDR-1) were examined in HCC using immunohistochemical staining and RT-PCR...
2016: EXCLI journal
https://www.readbyqxmd.com/read/28337105/colorectal-cancer-in-iran-epidemiology-and-morphology-trends
#14
Hosein Rafiemanesh, Reza Pakzad, Mehdi Abedi, Yones Kor, Jalal Moludi, Farhad Towhidi, Behnam Reza Makhsosi, Hamid Salehiniya
Colorectal cancer is one of the most prevalent cancers in different countries, including Iran. No comprehensive study has been done in the country for colorectal cancer, but information on the incidence and trends is essential to planning. This study aimed to evaluate the occurrence and morphology of colorectal cancer and its trend in Iran. This study was conducted using data from the national cancer registry system in Iran from 2003-2008. We used joinpoint regression analysis for assessing incidence time trends and morphology change percentage...
2016: EXCLI journal
https://www.readbyqxmd.com/read/28337104/synthesis-and-antimalarial-potential-of-some-novel-quinoline-pyrazolopyridine-derivatives
#15
Deepika Saini, Sandeep Jain, Ajay Kumar, Neelam Jain
A series of 1-(4-methylquinolin-2-yl)-4,6-diaryl-1H-pyrazolo[3,4-b]pyridin-3-amine derivatives was synthesized by the reaction of 3-cinnamoyl-4-hydroxy-6-methyl-2H-pyran-2-ones with 2-chloro-4,6-diphenylnicotinonitrile analogues in the presence of 2-hydrazino-4-methyl quinoline and ethanol. The newly synthesized compounds were characterized by IR, (1)H NMR and mass spectral data. The synthetic series of novel quinoline-pyrazolopyridine hybrids were screened for in vitro schizont maturation assay against chloroquine sensitive 3D7 strain of Plasmodium falciparum, from which the most five active analogues were further evaluated for in vivo 4-day suppressive test in Swiss albino mice...
2016: EXCLI journal
https://www.readbyqxmd.com/read/28337103/tiagabine-treatment-in-kainic-acid-induced-cerebellar-lesion-of-dystonia-rat-model
#16
Tsui-Chin Wang, Sukonthar Ngampramuan, Naiphinich Kotchabhakdi
Dystonia is a neurological disorder characterized by excessive involuntary muscle contractions that lead to twisting movements. The exaggerated movements have been studied and have implicated basal ganglia as the point of origin. In more recent studies, the cerebellum has also been identified as the possible target of dystonia, in the search for alternative treatments. Tiagabine is a selective GABA transporter inhibitor, which blocks the reuptake and recycling of GABA. The study of GABAergic drugs as an alternative treatment for cerebellar induced dystonia has not been reported...
2016: EXCLI journal
https://www.readbyqxmd.com/read/28337102/peritoneal-tuberculosis-with-elevated-ca-125-mimicking-ovarian-cancer-with-carcinomatosis-peritonei-crucial-ct-findings
#17
Jerry Chin-Wei Chien, Chia-Lang Fang, Wing P Chan
Preoperative diagnosis of peritoneal tuberculosis is often difficult because of confusion with ovarian cancer. A 56-year-old woman was admitted to our hospital with abdominal fullness. Ascites, prominent bilateral ovaries, and elevated CA-125 were noted. Computed tomography showed thickened peritoneum and strandings in the mesentery and omentum. Exploratory laparotomy was performed under the provisional diagnosis of ovarian cancer, but the final diagnosis was peritoneal tuberculosis. Careful evaluation of bilateral fallopian tubes and ovaries and peritoneum are helpful for correct diagnosis...
2016: EXCLI journal
https://www.readbyqxmd.com/read/28337101/anti-cancer-activities-of-brassica-juncea-leaves-in-vitro
#18
Youngeun Kwak, Jungjae Lee, Jihyeung Ju
Mustard (Brassica juncea) leaves are commonly consumed in different Asian and African countries. Cancer is a major burden of disease worldwide, and the colorectal and lung cancers are the leading cause of morbidity and mortality among cancers. In the current study, we aimed to investigate the effects of ethanol extract of mustard leaf (MLE) on the growth, angiogenic, and metastatic potentials of HCT116 colorectal carcinoma and H1299 non-small cell lung carcinoma cells in vitro. Treatment of HCT116 and H1299 cells with MLE inhibited cell growth in a dose-dependent manner (in the range of 175-700 µg/ml, by 39-86 %) and anchorage-independent colonization (at 700 µg/ml, by 56-86 %)...
2016: EXCLI journal
https://www.readbyqxmd.com/read/28337100/effect-of-prolyl-hydroxylase-domain-2-haplodeficiency-on-liver-progenitor-cell-characteristics-in-early-mouse-hepatocarcinogenesis
#19
Eliene Bogaerts, Annelies Paridaens, Xavier Verhelst, Peter Carmeliet, Anja Geerts, Hans Van Vlierberghe, Lindsey Devisscher
Activation of the hypoxia-inducible factor (HIF)-pathway in hepatocellular carcinoma (HCC) induces therapy resistant tumours, characterized by increased liver progenitor cell (LPCs) characteristics and poor prognosis. We previously reported corresponding results in mice with HCC in which hypoxia was mimicked by prolyl hydroxylase domain (PHD) inhibition. Here, we aimed at investigating whether induction of LPC characteristics occurs during the onset of hepatocarcinogenesis and if this is associated with activation of Notch signalling...
2016: EXCLI journal
https://www.readbyqxmd.com/read/28337099/development-and-validation-of-instrument-for-ergonomic-evaluation-of-tablet-arm-chairs
#20
Adriana Seára Tirloni, Diogo Cunha Dos Reis, Antonio Cezar Bornia, Dalton Francisco de Andrade, Adriano Ferreti Borgatto, Antônio Renato Pereira Moro
The purpose of this study was to develop and validate an evaluation instrument for tablet arm chairs based on ergonomic requirements, focused on user perceptions and using Item Response Theory (IRT). This exploratory study involved 1,633 participants (university students and professors) in four steps: a pilot study (n=26), semantic validation (n=430), content validation (n=11) and construct validation (n=1,166). Samejima's graded response model was applied to validate the instrument. The results showed that all the steps (theoretical and practical) of the instrument's development and validation processes were successful and that the group of remaining items (n=45) had a high consistency (0...
2016: EXCLI journal
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