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1.
J Psychiatr Res ; 175: 170-182, 2024 May 09.
Article in English | MEDLINE | ID: mdl-38735262

ABSTRACT

BACKGROUND: Ending a romantic relationship is one of the most painful losses an adult experience. Neuroimaging studies suggest that there is a neuropsychological link between breakup experiences and bereaved individuals, and that specific prefrontal regions are involved. The aim of this study was to determine whether enhancement of left DLPFC and right VLPFC activity with a novel intensified anodal transcranial direct current stimulation protocol reduces core symptoms of love trauma syndrome (LTS) and improves treatment-related variables. METHODS: In this randomized, sham-controlled, single-blind parallel trial, we assessed the efficacy of an intensified anodal stimulation protocol (20 min, twice-daily sessions with 20 min intervals, 5 consecutive days) with two montages (left DLPFC vs right VLPFC) to reduce love trauma symptoms. 36 participants with love trauma syndrome were randomized in three tDCS condition (left DLPFC, right VLPFC, sham stimulation). LTS symptoms, treatment-related outcome variables (depressive state, anxiety, emotion regulation, positive and negative affect), and cognitive functions were assessed before, right after, and one month after intervention. RESULTS: Both DLPFC and VLPFC protocols significantly reduced LTS symptoms, and improved depressive state and anxiety after the intervention, as compared to the sham group. The improving effect of the DLPFC protocol on love trauma syndrome was significantly larger than that of the VLPFC protocol. For emotion regulation and positive and negative affect, improved regulation of emotions and positive affect and reduced negative affect were revealed after intervention in the two real stimulation conditions compared to the sham. For cognitive functions, no significant difference was observed between the groups, but again a positive effect of intervention within groups in the real stimulation conditions (DLPFC and VLPFC) was found for most components of the cognitive tasks. CONCLUSIONS: Enhancement of left DLPFC and right VLPFC activity with intensified stimulation improves LTS symptoms and treatment-related variables. For LTS symptoms, DLPFC stimulation was more efficient than VLPFC stimulation., For the other variables, no significant difference was observed between these two stimulation groups. These promising results require replication in larger trials.

3.
Sci Total Environ ; 745: 140789, 2020 Nov 25.
Article in English | MEDLINE | ID: mdl-32721620

ABSTRACT

The objective of this study was to investigate the adsorption of diclofenac (DF) and cephalexin (CPX) by Anthriscus sylvestris-derived activated biochar. The raw biochar (R-BC) and activated biochar (ACT-B) were characterized by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), Raman spectroscopy and elemental analyses techniques to obtain information regarding the morphology, functional groups and elements of the adsorbents. Batch studies were carried out to examine the effect of various operational parameters. The maximum adsorption capacity of ACT-B was 392.94 mg g-1 for DF and 724.54 mg g-1 for CPX. The removal of DF and CPX was influenced by temperature and the co-existing ions. The kinetic data fitted well with the pseudo-second-order kinetic model, whereas the isotherm data showed the best correlation with Langmuir isotherm model. Electrostatic adsorption, hydrophobic interaction and π-π bonding play a key role in adsorption of both adsorbates by ACT-B. Additionally, column studies were conducted using ACT-B at different flow rates and different concentrations of DF and CPX to investigate the practical applicability of ACT-B in removal of the target contaminants. Thus, this study provides a feasible approach to synthesize activated biochar that can minimize pharmaceuticals pollution in water bodies.


Subject(s)
Diclofenac , Water Pollutants, Chemical , Adsorption , Cephalexin , Charcoal , Kinetics , Spectroscopy, Fourier Transform Infrared
4.
J Environ Manage ; 227: 95-106, 2018 Dec 01.
Article in English | MEDLINE | ID: mdl-30172163

ABSTRACT

In the present study, biosorption of chromium (Cr(VI)) ions and Naphthol blue black (NBB) dye using Moringa oleifera seed pods powder (MPP) as green biosorbent was investigated. Three different sizes of MPP viz. fine fraction (<53 µm), coarse fraction (>250 µm) and mixed fraction were investigated. The biosorbent was characterized by pHzpc, Fourier transform infrared spectroscopy (FT-IR), and scanning electron microscopy (SEM) in order to get an insight of the surface charge, functional groups, and morphology of the biosorbent, respectively. The biosorption studies were conducted with Cr(VI) and NBB dye and different parameters, such as solution pH, contact time, initial concentration of the pollutant, adsorbent dosage and co-existing ions were examined. Experimental results revealed that the maximum removal of Cr(VI) and NBB dye was observed at pH 1 and 2, respectively and the equilibrium was achieved in ca. 180 min. The removal efficiency of Cr(VI) by fine, mixed and coarse fraction was 91.8, 74.9, 52.6%, respectively, whereas for NBB dye, the removal efficiency for the same fractions was 97.5, 33.6, 18.9%, respectively. The removal efficiency of Cr(VI) and NBB dye was influenced in the presence of competing ions. The biosorption isotherm and kinetic data were best correlated with Langmuir isotherm and pseudo-second order kinetic model, respectively. Column studies were also conducted with MPP by studying different flow rates and adsorbates concentrations to check the practical applicability of MPP in removing target metal and dye pollutants.


Subject(s)
Moringa oleifera , Water Pollutants, Chemical/isolation & purification , Water Purification , Adsorption , Chromium , Hydrogen-Ion Concentration , Kinetics , Seeds , Spectroscopy, Fourier Transform Infrared , Water Pollutants, Chemical/chemistry
5.
J Res Pharm Pract ; 5(1): 27-34, 2016.
Article in English | MEDLINE | ID: mdl-26985433

ABSTRACT

OBJECTIVE: This study was designed to compare the efficacy and safety of enteral supplementation of a prebiotic mixture (SCGOS/LCFOS) on faecal microbiota in very premature infants who fed exclusively with human-milk. METHODS: This double-center randomized control trial was conducted from December 2012 to November 2013 in the tertiary Neonatal Intensive Care Units of the Isfahan University of Medical Sciences. Fifty preterm infants (birth weight ≤1500 g who were not fed with formula) were randomly allocated to have enteral (tube feeding) supplementation with a prebiotic mixture (SCGOS/LCFOS; 9:1) or receive no prebiotics. FINDINGS: The primary outcome (e.g., the effect of the prebiotic mixture on fecal microbiota pattern) was clearly different between the two groups. Despite greater coliforms colony counts in first stool cultures in the prebiotic group (Group P) (P = 0.67), coliforms were significantly lower in the third stool cultures in the Group P (P < 0.001). Furthermore, despite the much higher Lactobacillus colony counts, in the first stool cultures, in the control group (Group C) (P = 0.005); there was a trend toward significantly increased Lactobacillus colony counts in the Group P during the study, but the difference between Lactobacillus colony counts, in the third stool cultures, between two groups was no longer statistically significant (P = 0.11). Interestingly, the median length of hospital stay was significantly less in the Group P (16 [12.50-23.50] vs. 25 [19.50-33.00] days; P = 0.003). CONCLUSION: This suggests that it might have been "the complete removal of formula" which manifests a synergistic effect between nonhuman neutral oligosaccharides (prebiotics) and human oligosaccharides, which in turn, led to the rapid growth of beneficial Lactobacillus colonies in the gut of breast milk-fed preterm infants, while decreasing the number of pathogenic coliforms microorganisms. Therefore, further studies with larger sample sizes are recommended to investigate the issue.

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