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Journal of Advanced Research

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https://www.readbyqxmd.com/read/28289549/bis-l-prolinate-n-o-zn-a-water-soluble-and-recycle-catalyst-for-various-organic-transformations
#1
REVIEW
Roona Poddar, Arti Jain, Mazaahir Kidwai
Under the green chemistry perspective, bis[(l)prolinate-N,O]Zn (also called zinc-proline or Zn[(l)-pro]2) has proven its competence as a promising alternative in a plethora of applications such as catalyst or promoter. Owing to its biodegradable and non-toxic nature of bis[(l)prolinate-N,O]Zn, it is being actively investigated as a water soluble green catalyst for synthetic chemistry. Bis[(l)prolinate-N,O]Zn are readily utilized under mild conditions and have high selectivity and reactivity with broad range of substrate acceptance to make it better reaction medium for a wide variety of organic transformations...
May 2017: Journal of Advanced Research
https://www.readbyqxmd.com/read/28239494/extraction-optimization-of-mucilage-from-basil-ocimum-basilicum-l-seeds-using-response-surface-methodology
#2
Sadaf Nazir, Idrees Ahmed Wani, Farooq Ahmad Masoodi
Aqueous extraction of basil seed mucilage was optimized using response surface methodology. A Central Composite Rotatable Design (CCRD) for modeling of three independent variables: temperature (40-91 °C); extraction time (1.6-3.3 h) and water/seed ratio (18:1-77:1) was used to study the response for yield. Experimental values for extraction yield ranged from 7.86 to 20.5 g/100 g. Extraction yield was significantly (P < 0.05) affected by all the variables. Temperature and water/seed ratio were found to have pronounced effect while the extraction time was found to have minor possible effects...
May 2017: Journal of Advanced Research
https://www.readbyqxmd.com/read/28239493/a-review-on-polymeric-hydrogel-membranes-for-wound-dressing-applications-pva-based-hydrogel-dressings
#3
REVIEW
Elbadawy A Kamoun, El-Refaie S Kenawy, Xin Chen
This review presents the past and current efforts with a brief description on the featured properties of hydrogel membranes fabricated from biopolymers and synthetic ones for wound dressing applications. Many endeavors have been exerted during past ten years for developing new artificial polymeric membranes, which fulfill the demanded conditions for the treatment of skin wounds. This review mainly focuses on representing specifications of ideal polymeric wound dressing membranes, such as crosslinked hydrogels compatible with wound dressing purposes...
May 2017: Journal of Advanced Research
https://www.readbyqxmd.com/read/28228971/exfoliation-of-graphene-sheets-via-high-energy-wet-milling-of-graphite-in-2-ethylhexanol-and-kerosene
#4
Al-Sayed Al-Sherbini, Mona Bakr, Iman Ghoneim, Mohamed Saad
Graphene sheets have been exfoliated from bulk graphite using high energy wet milling in two different solvents that were 2-ethylhexanol and kerosene. The milling process was performed for 60 h using a planetary ball mill. Morphological characteristics were investigated using scanning electron microscope (SEM) and transmission electron microscope (TEM). On the other hand, the structural characterization was performed using X-ray diffraction technique (XRD) and Raman spectrometry. The exfoliated graphene sheets have represented good morphological and structural characteristics with a valuable amount of defects and a good graphitic structure...
May 2017: Journal of Advanced Research
https://www.readbyqxmd.com/read/28203459/association-of-age-on-cervical-joint-position-error
#5
Khalid A Alahmari, Ravi Shankar Reddy, Paul S Silvian, Irshad Ahmad, Venkata Nagaraj Kakaraparthi, Mohammed Mehtab Alam
This study quantitatively assesses the association between age and cervical joint position error (JPE) and compares JPE between young and older asymptomatic subjects. Subjects (n = 230) ranging in age from 17 to 70 years volunteered to participate in the study. Cervical JPE was measured for all subjects with the active movement angle reproduction test in degrees using a digital inclinometer; testing was done in all cervical movement directions (flexion, extension, side-bending right and left, rotation right and left)...
May 2017: Journal of Advanced Research
https://www.readbyqxmd.com/read/28203458/weldability-machinability-and-surfacing-of-commercial-duplex-stainless-steel-aisi2205-for-marine-applications-a-recent-review
#6
REVIEW
A Vinoth Jebaraj, L Ajaykumar, C R Deepak, K V V Aditya
In the present review, attempts have been made to analyze the metallurgical, mechanical, and corrosion properties of commercial marine alloy duplex stainless steel AISI 2205 with special reference to its weldability, machinability, and surfacing. In the first part, effects of various fusion and solid-state welding processes on joining DSS 2205 with similar and dissimilar metals are addressed. Microstructural changes during the weld cooling cycle such as austenite reformation, partitioning of alloying elements, HAZ transformations, and the intermetallic precipitations are analyzed and compared with the different welding techniques...
May 2017: Journal of Advanced Research
https://www.readbyqxmd.com/read/28203457/effect-of-strontium-on-nd-doped-ba1-x-sr-x-ce0-65zr0-25nd0-1o3-%C3%AE-proton-conductor-as-an-electrolyte-for-solid-oxide-fuel-cells
#7
J Madhuri Sailaja, K Vijaya Babu, N Murali, V Veeraiah
This paper investigated the Sr doping effect on the microstructure, chemical stability, and conductivity of Ba1-x Sr x Ce0.65Zr0.25Nd0.1O3-δ (0 ⩽ x ⩽ 0.2) electrolyte prepared by sol-gel method. The lattice constants and unit cell volumes were found to decrease as Sr atomic percentage increased in accordance with the Vegard law, confirming the formation of solid solution. Incorporation of Sr into the composition resulted in smaller grains besides suppressing the formation of secondary phases of SrCeO3...
May 2017: Journal of Advanced Research
https://www.readbyqxmd.com/read/28149651/hepatitis-c-virus-and-cardiovascular-a-review
#8
REVIEW
Salvatore Petta
Chronic hepatitis C virus (HCV) infection is a systemic disease that leads to increased risks of cirrhosis and its complications, as well as extrahepatic disturbances, including immune-related disorders and metabolic alterations such as insulin resistance and steatosis. Recent accumulating evidence suggests that HCV infection can increase cardiovascular risk, and that viral eradication can improve cardiovascular outcomes in the clinical setting. These data are strengthened by evidence identifying potential mechanisms (in)directly linking HCV infection to vascular damage...
March 2017: Journal of Advanced Research
https://www.readbyqxmd.com/read/28149650/current-level-of-evidence-on-causal-association-between-hepatitis-c-virus-and-type-2-diabetes-a-review
#9
REVIEW
Giacomo Gastaldi, Nicolas Goossens, Sophie Clément, Francesco Negro
The association between hepatitis C virus (HCV) infection and type 2 diabetes (T2D) has been known for over 20 years. Cross-sectional and longitudinal studies have shown a higher prevalence and incidence, respectively, of T2D in patients with chronic HCV infection. HCV induces glucose metabolism alterations mostly interfering with the insulin signaling chain in hepatocytes, although extrahepatic mechanisms seem to contribute. Both IR and T2D accelerate the histological and clinical progression of chronic hepatitis C as well as the risk of extra-hepatic complications such as nephropathy, acute coronary events and ischemic stroke...
March 2017: Journal of Advanced Research
https://www.readbyqxmd.com/read/28149649/hepatitis-c-virus-infection-and-neurological-and-psychiatric-disorders-a-review
#10
REVIEW
Lydia Yarlott, Eleanor Heald, Daniel Forton
An association between hepatitis C virus infection and neuropsychiatric symptoms has been proposed for some years. A variety of studies have been undertaken to assess the nature and severity of these symptoms, which range from fatigue and depression to defects in attention and verbal reasoning. There is evidence of mild neurocognitive impairment in some patients with HCV infection, which is not fully attributable to liver dysfunction or psychosocial factors. Further evidence of a biological cerebral effect has arisen from studies using magnetic resonance spectroscopy; metabolic abnormalities correlate with cognitive dysfunction and resemble the patterns of neuroinflammation that have been described in HIV infection...
March 2017: Journal of Advanced Research
https://www.readbyqxmd.com/read/28149648/hepatitis-c-virus-and-non-hodgkin-s-lymphomas-a-minireview
#11
REVIEW
Hussein Khaled, Fouad Abu-Taleb, Rasha Haggag
B-cell NHL is strongly associated with HCV that was proved in the last 2 decades. The most common HCV infection related B-NHL subtypes include MZL and DLBCL lymphomas. HCV-positive NHL patients usually present with older age at diagnosis, higher LDH, and more extranodal disease. The standard chemo-immunotherapy tolerance is generally good. Antiviral treatment achieves virological and hematological remission in HCV associated indolent lymphoma. More aggressive lymphoma requires combination of antiviral treatment and chemotherapy...
March 2017: Journal of Advanced Research
https://www.readbyqxmd.com/read/28149647/hepatitis-c-and-kidney-disease-a-narrative-review
#12
REVIEW
Rashad S Barsoum, Emad A William, Soha S Khalil
Hepatitis-C (HCV) infection can induce kidney injury, mostly due to formation of immune-complexes and cryoglobulins, and possibly to a direct cytopathic effect. It may cause acute kidney injury (AKI) as a part of systemic vasculitis, and augments the risk of AKI due to other etiologies. It is responsible for mesangiocapillary or membranous glomerulonephritis, and accelerates the progression of chronic kidney disease due to other causes. HCV infection increases cardiovascular and liver-related mortality in patients on regular dialysis...
March 2017: Journal of Advanced Research
https://www.readbyqxmd.com/read/28149646/vasculitic-syndromes-in-hepatitis-c-virus-a-review
#13
REVIEW
Gaafar Ragab, Mohamed A Hussein
Vasculitis is a remarkable presentation of the extrahepatic manifestations of HCV. According to the presence or absence of cryoglobulins it is subdivided into two main types: cryoglobulinemic vasculitis and non cryoglobulinemic vasculitis based on the attribution of vasculitis to serum cryoglobulins as a pathogenic factor. The attribution of cryoglobulinemia to HCV represents a success story in the history of immunology, microbiology, and clinical medicine. HCV can bind to and invade lymphocytes, consequently triggering an immune response through different mechanisms...
March 2017: Journal of Advanced Research
https://www.readbyqxmd.com/read/28149645/new-insights-into-hcv-related-rheumatologic-disorders-a-review
#14
REVIEW
Patrice Cacoub, Cloé Comarmond
Hepatitis C virus (HCV) infected patients are known to be exposed to major liver complications i.e. cirrhosis and hepatocellular carcinoma. In addition, many extrahepatic manifestations including rheumatologic disorders have been reported in up to two-third of HCV infected patients. These manifestations include frank auto-immune and rheumatic diseases (such as arthralgia, myalgia, arthritis, sicca syndrome and vasculitis) which may dominate the course of infection. Until recently, the standard of care of HCV has been the use of interferon-alpha based regimens, which not only had limited effectiveness in HCV cure but were poorly tolerated...
March 2017: Journal of Advanced Research
https://www.readbyqxmd.com/read/28149644/extrahepatic-manifestations-in-hepatitis-c-virus-infection
#15
EDITORIAL
Francesco Negro, Gamal Esmat
No abstract text is available yet for this article.
March 2017: Journal of Advanced Research
https://www.readbyqxmd.com/read/28116153/free-radical-induced-grafting-of-acrylonitrile-on-pre-treated-rice-straw-for-enhancing-its-durability-and-flame-retardancy
#16
Aparna Mukherjee, Seema Halder, Deepshikha Datta, Kumar Anupam, Biren Hazra, Mrinal Kanti Mandal, Gopinath Halder
The present investigation highlights the feasibility of a polymer grafting process to enhance the durability and flame retardancy of rice straw towards application as a low cost roofing material. The success of this grafting methodology was perceived to depend upon a bi-step pre-treatment process encompassing delignification and inorganic salts dispersion. Subsequently free radical polymer grafting of acrylonitrile onto rice straw was implemented by immersion mechanism initiated by oxalic acid-potassium permanganate initiator...
January 2017: Journal of Advanced Research
https://www.readbyqxmd.com/read/28053783/novel-angiotensin-converting-enzyme-inhibitory-peptides-from-caseins-and-whey-proteins-of-goat-milk
#17
Hisham R Ibrahim, Ahmed S Ahmed, Takeshi Miyata
Angiotensin-converting enzyme (ACE) plays a central role in blood pressure regulation by producing the vasoconstrictor angiotensin II. The inhibition of ACE with natural inhibitors, as alternatives to avoid the side effect of synthetic drugs, is a major target in the prevention of hypertension. In this study, we examined the separated caseins and whey proteins of goat milk for the presence of ACE inhibitory peptides. Digestion of isolated whey proteins and caseins of goat milk by gastric pepsin generated soluble hydrolysates exhibiting significant inhibition of ACE compared to weak inhibition by undigested proteins...
January 2017: Journal of Advanced Research
https://www.readbyqxmd.com/read/28053782/dexamethasone-abrogates-the-antimicrobial-and-antibiofilm-activities-of-different-drugs-against-clinical-isolates-of-staphylococcus-aureus-and-pseudomonas-aeruginosa
#18
Aquila Rodrigues, André Gomes, Pedro Henrique Ferreira Marçal, Marcus Vinícius Dias-Souza
Staphylococcus aureus and Pseudomonas aeruginosa are part of the human microbiota and are also important bacterial pathogens, for which therapeutic options are lacking nowadays. The combined administration of corticosteroids and antimicrobials is commonly used in the treatment of infectious diseases to control inflammatory processes and to minimize potential toxicity of antimicrobials, avoiding sequelae. Although different pharmaceutical dosage forms of antimicrobials combined to corticosteroids are available, studies on the interference of corticosteroids on the pharmacological activity of antimicrobials are scarce and controversial...
January 2017: Journal of Advanced Research
https://www.readbyqxmd.com/read/27980864/pulsed-magnetic-field-versus-ultrasound-in-the-treatment-of-postnatal-carpal-tunnel-syndrome-a-randomized-controlled-trial-in-the-women-of-an-egyptian-population
#19
Dalia M Kamel, Nashwa S Hamed, Neveen A Abdel Raoof, Sayed A Tantawy
The aim of this study was to compare the effects of pulsed electromagnetic field versus pulsed ultrasound in treating patients with postnatal carpal tunnel syndrome. The study was a randomized, double-blinded trial. Forty postnatal female patients with idiopathic carpal tunnel syndrome were divided randomly into two equal groups. One group received pulsed electromagnetic field, with nerve and tendon gliding exercises for the wrist, three times per week for four weeks. The other group received pulsed ultrasound and the same wrist exercises...
January 2017: Journal of Advanced Research
https://www.readbyqxmd.com/read/27942417/quantitative-structure-activity-relationship-and-molecular-docking-studies-of-a-series-of-quinazolinonyl-analogues-as-inhibitors-of-gamma-amino-butyric-acid-aminotransferase
#20
Usman Abdulfatai, Adamu Uzairu, Sani Uba
Quantitative structure-activity relationship and molecular docking studies were carried out on a series of quinazolinonyl analogues as anticonvulsant inhibitors. Density Functional Theory (DFT) quantum chemical calculation method was used to find the optimized geometry of the anticonvulsants inhibitors. Four types of molecular descriptors were used to derive a quantitative relation between anticonvulsant activity and structural properties. The relevant molecular descriptors were selected by Genetic Function Algorithm (GFA)...
January 2017: Journal of Advanced Research
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