Review—Recent Advances in Direct and Indirect Methods for Sensing Carbonyl Compounds Aldehydes in Environment and Foodstuffs

2019 ◽  
Vol 166 (15) ◽  
pp. B1543-B1551 ◽  
Author(s):  
Fathellah Laghrib ◽  
Sara Lahrich ◽  
Moulay Abderrahim El Mhammedi
Keyword(s):  
Carbonyl Compounds ◽  
Indirect Methods ◽  
Recent Advances ◽  
Direct And Indirect Methods

scholarly journals Recent advances in the syntheses of anthracene derivatives

2021 ◽  
Vol 17 ◽  
pp. 2028-2050
Author(s):  
Giovanni S Baviera ◽  
Paulo M Donate
Keyword(s):  
Solar Cells ◽  
Organic Materials ◽  
Polymeric Materials ◽  
Biological Properties ◽  
Indirect Methods ◽  
Recent Advances ◽  
Anthracene Derivatives ◽  
The Subject ◽  
Direct And Indirect Methods ◽  
Biological Field

Anthracene and anthracene derivatives have been extensively studied over the years because of their interesting photophysical, photochemical, and biological properties. They are currently the subject of research in several areas, which investigate their use in the biological field and their application in OLEDs, OFETs, polymeric materials, solar cells, and many other organic materials. Their synthesis remains challenging, but some important preparative methods have been reported, especially in the last decade. This review presents an update of the recent strategies that have been employed to prepare anthracene derivatives. It encompasses papers published over the last twelve years (2008–2020) and focuses on direct and indirect methods to construct anthracene and anthraquinone frameworks.

Aspects of orthodontic protocol in cleft lip and palate patients

2020 ◽  
Vol 20 (2) ◽  
pp. 137-142
Author(s):  
O. V. Dudnik ◽  
Ad. A. Mamedov ◽  
O. I. Admakin ◽  
A. A. Skakodub ◽  
Y. O. Volkov ◽  
...  
Keyword(s):  
Oral Hygiene ◽  
Orthodontic Treatment ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Comprehensive Approach ◽  
Maxillofacial Region ◽  
Indirect Methods ◽  
Indirect Bonding ◽  
The Face ◽  
Direct And Indirect Methods

Relevance. Cleft lip and palate is one of the severe malformations of the face and jaw, requiring a comprehensive approach to the rehabilitation of the patients, including doctors of various specialties, one of which is orthodontists. A feature of orthodontic treatment is difficulty of fixing bracket systems, as well as lowering the level of oral hygiene, caused by deformation and displacement of fragments of the maxillofacial region.Purpose. Improving the effectiveness of orthodontic treatment and hygiene of the oral caviti in patients with cleft lip and palate in permanent bite period.Materials and methods. A comparison was made of the effetctiveness of fixing brackets systmes with direct and indirect bonding techniques and the effectiveness of oral hygiene during orthodontic treatment using irrigators.Results. The results of the study showed a difference in the effectiveness of using direct and indirect methods of fixing bracket systems in patients with cleft and palate. The use of irrigators as additional means of oral hygiene has demonstrated a positive dynamic of hygiene indices.Conclusions. Results of the study demonstrate the advantages of fixation the brackets by indirect bonding and use additional hygiene products irrigator for improving of oral hygiene.

scholarly journals A diet high in sugar and fat influences neurotransmitter metabolism and then affects brain function by altering the gut microbiota

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yinrui Guo ◽  
Xiangxiang Zhu ◽  
Miao Zeng ◽  
Longkai Qi ◽  
Xiaocui Tang ◽  
...  
Keyword(s):  
Gut Microbiota ◽  
Bacterial Strain ◽  
Brain Function ◽  
Intestinal Tract ◽  
High Fat ◽  
Indirect Methods ◽  
Neurotransmitter Secretion ◽  
Direct And Indirect Methods ◽  
Neurotransmitter Metabolism ◽  
Host Brain

AbstractGut microbiota (GM) metabolites can modulate the physiology of the host brain through the gut–brain axis. We wished to discover connections between the GM, neurotransmitters, and brain function using direct and indirect methods. A diet with increased amounts of sugar and fat (high-sugar and high-fat (HSHF) diet) was employed to disturb the host GM. Then, we monitored the effect on pathology, neurotransmitter metabolism, transcription, and brain circularRNAs (circRNAs) profiles in mice. Administration of a HSHF diet-induced dysbacteriosis, damaged the intestinal tract, changed the neurotransmitter metabolism in the intestine and brain, and then caused changes in brain function and circRNA profiles. The GM byproduct trimethylamine-n-oxide could degrade some circRNAs. The basal level of the GM decided the conversion rate of choline to trimethylamine-n-oxide. A change in the abundance of a single bacterial strain could influence neurotransmitter secretion. These findings suggest that a new link between metabolism, brain circRNAs, and GM. Our data could enlarge the “microbiome–transcriptome” linkage library and provide more information on the gut–brain axis. Hence, our findings could provide more information on the interplay between the gut and brain to aid the identification of potential therapeutic markers and mechanistic solutions to complex problems encountered in studies of pathology, toxicology, diet, and nutrition development.

Recent advances in α,β-unsaturated carbonyl compounds as mitochondrial toxins

2019 ◽  
Vol 183 ◽  
pp. 111687 ◽  
Author(s):  
Mohammad Hossain ◽  
Umashankar Das ◽  
Jonathan R. Dimmock
Keyword(s):  
Carbonyl Compounds ◽  
Recent Advances ◽  
Mitochondrial Toxins
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