keyword
https://read.qxmd.com/read/38687688/effect-of-mixture-composition-on-the-photophysics-of-indoline-dyes-in-imidazolium-ionic-liquid-molecular-solvent-mixtures-a-femtosecond-transient-absorption-study
#1
JOURNAL ARTICLE
Nishith Maity, Kamil Polok, Piotr Piatkowski, Yevheniia Smortsova, François-Alexandre Miannay, Wojciech Gadomski, Abdenacer Idrissi
We conducted a study on the photophysics of three indoline dyes, D102, D149, and D205, in binary mixtures of ionic liquids (IL) and polar aprotic molecular solvents (MS). Specifically, we examined the behavior of these dyes in IL-MS mixtures containing four different imidazolium-based ILs and three different polar aprotic MSs. Our investigation involved several techniques, including stationary absorption and emission measurements, as well as femtosecond transient absorption (TA) spectroscopy. Through our analysis, we discovered a peculiar behavior of several photophysical properties at low IL mole fractions (0 < X IL < 0...
April 30, 2024: Journal of Physical Chemistry. B
https://read.qxmd.com/read/38685295/isolation-structural-elucidation-of-bioactive-compounds-and-their-wound-healing-ability-antibacterial-and-in-silico-molecular-docking-applications
#2
JOURNAL ARTICLE
Mathivanan Dhamodiran, Kamaraj Chinnaperumal, Dhanish J, Geetha Venkatesan, Maha A Alshiekheid, S R Suseem
Andrographis echioides has been extensively utilized in traditional Indian folk medicines for several skin disorders and other biological actions such as diuretic, antimicrobial, anthelmintic, anti-ulcer, and hepatoprotective properties. Different crude extracts were extracted from A. echioides leaves using various solvents such as methanol and water. The prepared crude extracts were utilized to formulate different herbal ointments. Further, the prepared ointments were examined against wounds and bacterial pathogens...
April 27, 2024: Environmental Research
https://read.qxmd.com/read/38685144/stakeholders-perspectives-and-experiences-of-the-pharmacist-s-role-in-deprescribing-in-ambulatory-care-a-qualitative-meta-synthesis
#3
REVIEW
Amanda Kassis, Rebekah Moles, Stephen Carter
BACKGROUND: Deprescribing is an effective strategy to manage polypharmacy and improve patient outcomes. The notion of a potential role for pharmacists in a multidisciplinary team approach to deprescribing has been identified in quantitative and qualitative literature. However, stakeholders' perceptions of this role, and factors that may impede or facilitate the pharmacist's involvement have not been elucidated. The application in ambulatory care also requires clarification. Understanding stakeholders' views is essential to optimise involvement of the pharmacist in deprescribing and improve practice...
April 27, 2024: Research in Social & Administrative Pharmacy: RSAP
https://read.qxmd.com/read/38684572/developing-of-an-eco-friendly-liquid-liquid-microextraction-method-by-using-menthol-based-hydrophobic-deep-eutectic-solvent-for-determination-of-basic-fuchsin-dye-assessment-of-the-greenness-profile
#4
JOURNAL ARTICLE
Funda Aydin, Volkan Alkan, Fatih Dönmez
Herein, we aimed to develop a new environmentally friendly liquid-liquid microextraction (LLME) method based on hydrophobic deep eutectic solvent (hDES) synthesized using biodegradable dl-menthol and decanoic acid for the spectrophotometric determination of toxic basic fuchsin dye in environmental water samples. The parameters affecting the extraction efficiency such as pH, mole ratio, and volume of hDES (1:2) and type and volume of organic solvent, sample volume, times of vortex, ultrasonic bath and centrifuge, ionic strength, and matrix effect were investigated and optimized...
April 29, 2024: Environmental Monitoring and Assessment
https://read.qxmd.com/read/38681600/determination-of-regorafenib-monohydrate-colorectal-anticancer-drug-solubility-in-supercritical-co-2-experimental-and-thermodynamic-modeling
#5
JOURNAL ARTICLE
Gholamhossein Sodeifian, Ratna Surya Alwi, Fatemeh Sodeifian, Solmaz Amraee, Mohammadreza Rashidi-Nooshabadi, Fariba Razmimanesh
In this study, the solubilities of Regorafenib monohydrate ( REG ), a widely used as a colorectal anticancer drug, in supercritical carbon dioxide (ScCO2 ) were measured under various pressures and temperature conditions, for the first time. The minimum value of REG in mole fraction was determined to be 3.06×10-7 , while the maximum value was found to be 6.44×10-6  at 338 K and 27 MPa. The experimental data for REG were correlated through the utilization of two types of models: (1) a set of 25 existing empirical and semi-empirical models that incorporated 3-8 parameters according to functional dependencies, (2) a model that relied on solid-liquid equilibrium ( SLE ) and the newly improved association models...
April 30, 2024: Heliyon
https://read.qxmd.com/read/38681151/vaginal-bleeding-in-a-peri-menopausal-woman
#6
Ambika Shivarajpur, Brian Kohen
Point of care ultrasound (POCUS) is a useful modality to initially identify a molar pregnancy. In this case, we describe a 51-year-old perimenopausal woman who presented to the emergency department (ED) with vaginal bleeding. A transvaginal POCUS was performed, revealing findings concerning for a molar pregnancy. These findings led to prompt diagnosis and treatment.
2024: POCUS J
https://read.qxmd.com/read/38680085/hypoxia-impairs-blood-glucose-homeostasis-in-naked-mole-rat-subordinate-adults-but-not-queens
#7
JOURNAL ARTICLE
Mohammad Ojaghi, Matthew E Pamenter
Naked mole-rats (NMRs) are among the most hypoxia-tolerant mammals and metabolize only carbohydrates in hypoxia. Glucose is the primary building block of dietary carbohydrates but how blood glucose is regulated during hypoxia has not been explored in NMRs. We hypothesized that NMRs mobilize glucose stores to support anaerobic energy metabolism in hypoxia. To test this, we treated newborn, juvenile, and adult (subordinate and queen) NMRs in normoxia (21% O2) or hypoxia (7, 5, or 3% O2), while measuring metabolic rate, body temperature and blood [glucose]...
April 29, 2024: Journal of Experimental Biology
https://read.qxmd.com/read/38677924/corrigendum-to-mir-196b-inhibits-cell-migration-and-invasion-through-targeting-map3k1-in-hydatidiform-mole-biomed-%C3%A2-pharmacother-113-2019-108760
#8
Zhenzhen Guo, Linlin Sui, Jia Qi, Qiannan Sun, Yuefei Xu, Na Zou, Yunpeng Xie, Ying Kong
No abstract text is available yet for this article.
April 26, 2024: Biomedicine & Pharmacotherapy
https://read.qxmd.com/read/38673912/transport-properties-in-multicomponent-systems-containing-cyclodextrins-and-nickel-ions
#9
JOURNAL ARTICLE
Sónia I G Fangaia, Daniela S A Silva, Ana Messias, Pedro M G Nicolau, Artur J M Valente, M Melia Rodrigo, Ana C F Ribeiro
In this work, we propose a comprehensive experimental study of the diffusion of nickel ions in combination with different cyclodextrins as carrier molecules for enhanced solubility and facilitated transport. For this, ternary mutual diffusion coefficients measured by Taylor dispersion method are reported for aqueous solutions containing nickel salts and different cyclodextrins (that is, α-CD, β-CD, and γ-CD) at 298.15 K. A combination of Taylor dispersion and other methods, such as UV-vis spectroscopy, will be used to obtain complementary information on these systems...
April 13, 2024: International Journal of Molecular Sciences
https://read.qxmd.com/read/38673145/calorimetric-studies-and-thermodynamic-modeling-of-ag-mg-ti-liquid-alloys
#10
JOURNAL ARTICLE
Weronika Gozdur, Władysław Gąsior, Maciej Zrobek, Andrzej Budziak, Roman Dębski, Wojciech Gierlotka, Magda Pęska, Marek Polański, Adam Dębski
Due to the absence of thermodynamic data concerning the Ag-Mg-Ti system in the existing literature, this study aims to fill this gap by offering the outcomes of calorimetric investigations conducted on ternary liquid solutions of these alloys. The measurements were performed using the drop calorimetry method at temperatures of 1294 K and 1297 K for the liquid solutions with the following constant mole fraction ratio: xAg /xMg = 9/1, 7/3, 1/1, 3/7 [(Ag0.9 Mg0.1 )1-x Tix , (Ag0.7 Mg0.3 )1-x Tix , (Ag0.5 Mg0.5 )1-x Tix , (Ag0...
April 12, 2024: Materials
https://read.qxmd.com/read/38672902/sustainable-valorization-of-coffee-silverskin-extraction-of-phenolic-compounds-and-proteins-for-enzymatic-production-of-bioactive-peptides
#11
JOURNAL ARTICLE
Wilasinee Jirarat, Tanyawat Kaewsalud, Kamon Yakul, Pornchai Rachtanapun, Thanongsak Chaiyaso
Coffee silverskin (CS), a by-product of the coffee roasting process, has high protein content (16.2-19.0%, w / w ), making it a potential source for plant protein and bioactive peptide production. This study aims to develop innovative extraction methods for phenolic compounds and proteins from CS. The conditions for hydrothermal (HT) extraction of phenolic compounds from CS were optimized by varying CS loading (2.5-10%, w / v ), temperature (110-130 °C), and time (5-30 min) using a one-factor-at-a-time (OFAT) approach...
April 17, 2024: Foods (Basel, Switzerland)
https://read.qxmd.com/read/38668831/evaluation-of-rhododendri-mollis-flos-and-its-representative-component-as-a-potential-analgesic
#12
JOURNAL ARTICLE
Xin Wang, Wenjing Guo, Bo Zhang, Haixia Xu, Qingyun Yang, Jingyi Zhao, Yi Feng, Jian Yang, Jiquan Zhang
Rhododendri Mollis Flos (R. mole Flos), the dried flowers of Rhododendron mole G. Don, have the ability to relieve pain, dispel wind and dampness, and dissolve blood stasis, but they are highly poisonous. The significance of this study is to explore the analgesic application potential of R. mole Flos and its representative component. According to the selected processing methods recorded in ancient literature, the analgesic activities of wine- and vinegar-processed R. mole Flos, as well as the raw product, were evaluated in a writhing test with acetic acid and a formalin-induced pain test...
April 26, 2024: Journal of Natural Medicines
https://read.qxmd.com/read/38668247/complete-rescue-of-htlv-1-p12ko-infectivity-by-depletion-of-monocytes-together-with-nk-and-cd8-t-cells
#13
JOURNAL ARTICLE
Anna Gutowska, Sarkis Sarkis, Mohammad Arif Rahman, Katherine C Goldfarbmuren, Ramona Moles, Massimiliano Bissa, Melvin Doster, Robyn Washington-Parks, Katherine McKinnon, Isabela Silva de Castro, Luca Schifanella, Genoveffa Franchini, Cynthia A Pise-Masison
The transient depletion of monocytes alone prior to exposure of macaques to HTLV-1 enhances both HTLV-1WT (wild type) and HTLV-1p12KO (Orf-1 knockout) infectivity, but seroconversion to either virus is not sustained over time, suggesting a progressive decrease in virus expression. These results raise the hypotheses that either HTLV-1 persistence depends on a monocyte reservoir or monocyte depletion provides a transient immune evasion benefit. To test these hypotheses, we simultaneously depleted NK cells, CD8+ T cells, and monocytes (triple depletion) prior to exposure to HTLV-1WT or HTLV-1p12KO ...
March 29, 2024: Pathogens
https://read.qxmd.com/read/38665615/decoding-the-genetics-of-recurrent-molar-pregnancy
#14
Sumita Mehta, Sunita Bijarnia Mahay, Abhishek Satapathy, Kiran Arora
Hydatidiform mole is a condition characterised by abnormal trophoblastic hyperplasia and failure of embryonic tissue development. The risk of recurrence is seen to be associated with biallelic maternal mutations in NLRP7 , KHDC3 L and PAD16 genes. Women with such mutations have a major risk of reproductive failure and normal pregnancy is seen in only 1.8%. We report the case of a 31-year-old woman with previous three molar pregnancies who on genetic testing was found to be compound heterozygous for pathogenic variants in the NLRP7 gene (c...
2024: Journal of Human Reproductive Sciences
https://read.qxmd.com/read/38663719/phospholipid-analyses-of-rabbit-ocular-surface-tissues
#15
JOURNAL ARTICLE
Jack V Greiner, Thomas Glonek
The tissues of the integument covering the ocular surface comprise a mucus membrane functioning as a protective physical barrier and has the ability to mount a defensive inflammatory response. Since lipid metabolism has a role in both of these functions, we studied normal membrane phospholipids (PL) of the cornea and bulbar conjunctiva to (1) determine baseline PL profiles of these tissues, (2) compare and contrast these individual PL metabolite profiles as well as groups of metabolites, and (3) describe pathway-specific metabolic interrelations among these tissues...
April 23, 2024: Experimental Eye Research
https://read.qxmd.com/read/38663546/proline-peptide-bond-isomerization-in-ubiquitin-under-folding-and-denaturing-conditions-by-pressure-jump-nmr
#16
JOURNAL ARTICLE
Elahe Masoumzadeh, Jinfa Ying, James L Baber, Philip Anfinrud, Ad Bax
Proline isomerization is widely recognized as a kinetic bottleneck in protein folding, amplified for proteins rich in Pro residues. We introduced repeated hydrostatic pressure jumps between native and pressure-denaturing conditions inside an NMR sample cell to study proline isomerization in the pressure-sensitized L50A ubiquitin mutant. Whereas in two unfolded heptapeptides, X-Pro peptide bonds isomerized ca 1.6-fold faster at 1 bar than at 2.5 kbar, for ubiquitin ca eight-fold faster isomerization was observed for Pro-38 and ca two-fold for Pro-19 and Pro-37 relative to rates measured in the pressure-denatured state...
April 23, 2024: Journal of Molecular Biology
https://read.qxmd.com/read/38662255/copper-ii-driven-fluorescence-switch-on-detection-of-ovalbumin-and-gsh-using-a-pyridoxal-5-phosphate-derived-tetradentate-schiff-base-and-its-applications
#17
JOURNAL ARTICLE
Sonkeshriya Dhanshri, Seshu Vardhan, Suban K Sahoo
The facile detection of glutathione (GSH) and ovalbumin (OVA) is of great importance in biological research. Herein, a tetradentate Schiff base N, N'-bis(pyridoxal-5-phosphate)-o-phenylenediamine (L) obtained by condensing two moles of pyridoxal 5'-phosphate (PLP) with one mole of 1,2-phenylenediamine was employed for the fluorescence switch-on detection of GSH and OVA. When excited at 389 nm, receptor L showed a weak emission at 454 nm in an aqueous medium. The addition of GSH to the solution of L caused a significant fluorescence enhancement at 454 nm...
April 25, 2024: Journal of Fluorescence
https://read.qxmd.com/read/38660023/egfr-targeting-of-liposomal-doxorubicin-improves-recognition-and-suppression-of-non-small-cell-lung-cancer
#18
JOURNAL ARTICLE
Ernest Moles, David W Chang, Friederike M Mansfeld, Alastair Duly, Kathleen Kimpton, Amy Logan, Christopher B Howard, Kristofer J Thurecht, Maria Kavallaris
INTRODUCTION: Despite improvements in chemotherapy and molecularly targeted therapies, the life expectancy of patients with advanced non-small cell lung cancer (NSCLC) remains less than 1 year. There is thus a major global need to advance new treatment strategies that are more effective for NSCLC. Drug delivery using liposomal particles has shown success at improving the biodistribution and bioavailability of chemotherapy. Nevertheless, liposomal drugs lack selectivity for the cancer cells and have a limited ability to penetrate the tumor site, which severely limits their therapeutic potential...
2024: International Journal of Nanomedicine
https://read.qxmd.com/read/38657623/mds-np-a-property-prediction-model-construction-procedure-for-naphtha-based-on-molecular-dynamics-simulation
#19
JOURNAL ARTICLE
YiXin Wei, Tong Qiu
In the context of carbon neutrality and carbon peaking, molecular management has become a focus of the petrochemical industry. The key to achieving molecular management is molecular reconstruction, which relies on rapid and accurate calculation of oil properties. Focusing on naphtha, we proposed a novel property prediction model construction procedure (MDs-NP) employing molecular dynamics simulations for property collections and gamma distribution from real analytical data for calculating mole fractions of simulation mixtures...
April 24, 2024: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://read.qxmd.com/read/38651959/-evolution-of-cancer-resistance-in-the-animal-kingdom
#20
JOURNAL ARTICLE
Frédéric Thomas, Beata Ujvari, Antoine M Dujon
Cancer is an inevitable collateral problem inherent in the evolution of multicellular organisms, which appeared at the end of the Precambrian. Faced to this constraint, a range of diverse anticancer defenses has evolved across the animal kingdom. Today, investigating how animal organisms, especially those of large size and long lifespan, manage cancer-related issues has both fundamental and applied outcomes, as it could inspire strategies for preventing or treating human cancers. In this article, we begin by presenting the conceptual framework for understanding evolutionary theories regarding the development of anti-cancer defenses...
April 2024: Médecine Sciences: M/S
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