scholarly journals The Study on the Pathogenesis of Pediatric Lymphoma Based on the Combination of Pseudotargeted and Targeted Metabolomics

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Hongqi Sun ◽  
Nan Chen ◽  
Xuchen Wang ◽  
Na Li ◽  
Shanshan Wang ◽  
...  
Keyword(s):  
Octadecenoic Acid ◽  
Control Group ◽  
Hexadecenoic Acid ◽  
Hexadecanoic Acid ◽  
Targeted Metabolomics ◽  
Serum Samples ◽  
Tetradecanoic Acid ◽  
Serum Metabolites ◽  
Pediatric Lymphoma ◽  
Effective Diagnosis

Pediatric lymphoma is a kind of malignant tumor with high mortality. The complexity of pediatric lymphoma shows a great challenge for effective diagnosis and treatment. In order to meet the challenge, the combination of pseudotargeted and targeted metabolomics was used to analyze the serum metabolites in pediatric lymphoma patients and healthy controls for discovering the metabolites related to pediatric lymphoma. The serum samples were obtained from the treatment group ( n = 43 ), the control group ( n = 26 ), and the patients group ( n = 18 ). A total of 17 serum metabolites, including carnitine, leucine, creatine, urea, (6Z,9Z,12Z)-octadecatrienoic acid, linoleate, octadecenoic acid, L-palmitoylcarnitine, hexadecanoic acid, tetradecanoic acid, (9Z)-hexadecenoic acid, uric acid, glucose, 1-methylnicotinamide, hypoxanthine, L-glutamine, and taurine, were found to be related to pediatric lymphoma. They could provide a scientific diagnostic basis and therapeutic target for pediatric lymphoma and elucidate the mechanism of pediatric lymphoma.

scholarly journals Serum Metabolites as an Indicator of Developing Gestational Diabetes Mellitus Later in the Pregnancy: A Prospective Cohort of a Chinese Population

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Mengyuan Tian ◽  
Shujuan Ma ◽  
Yiping You ◽  
Sisi Long ◽  
Jiayue Zhang ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Gestational Diabetes ◽  
Gestational Diabetes Mellitus ◽  
Early Pregnancy ◽  
Pantothenic Acid ◽  
Maternal Serum ◽  
Control Group ◽  
Healthy Controls ◽  
Serum Samples ◽  
Serum Metabolites

Objective. Gestational diabetes mellitus (GDM) is a common metabolic disorder with onset during pregnancy. However, the etiology and pathogenesis of GDM have not been fully elucidated. In this study, we used a metabolomics approach to investigate the relationship between maternal serum metabolites and GDM in early pregnancy. Methods. A nested case-control study was performed. To establish an early pregnancy cohort, pregnant women in early pregnancy ( 10 ‐ 13 + 6 weeks) were recruited. In total, 51 patients with GDM and 51 healthy controls were included. Serum samples were analyzed using an untargeted high-performance liquid chromatography mass spectrometry metabolomics approach. The relationships between metabolites and GDM were analyzed by an orthogonal partial least-squares discriminant analysis. Differential metabolites were evaluated using a KEGG pathway analysis. Results. A total of 44 differential metabolites were identified between GDM cases and healthy controls during early pregnancy. Of these, 26 significant metabolites were obtained in early pregnancy after false discovery rate ( FDR < 0.1 ) correction. In the GDM group, the levels of L-pyroglutamic acid, L-glutamic acid, phenylacetic acid, pantothenic acid, and xanthine were significantly higher and the levels of 1,5-anhydro-D-glucitol, calcitriol, and 4-oxoproline were significantly lower than those in the control group. These metabolites were involved in multiple metabolic pathways, including those for amino acid, carbohydrate, lipid, energy, nucleotide, cofactor, and vitamin metabolism. Conclusions. We identified significant differentially expressed metabolites associated with the risk of GDM, providing insight into the mechanisms underlying GDM in early pregnancy and candidate predictive markers.

Cellular fatty acid comparison of strains of Corynebacterium michiganense subsp. sepedonicum from potato and sugar beet

1988 ◽  
Vol 34 (6) ◽  
pp. 716-722 ◽  
Author(s):  
Neil C. Gudmestad ◽  
Paul J. Henningson ◽  
William M. Bugbee
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Sugar Beet ◽  
Fatty Acid Content ◽  
Octadecenoic Acid ◽  
Cellular Fatty Acid ◽  
Gas Liquid Chromatography ◽  
Hexadecanoic Acid ◽  
Tetradecanoic Acid ◽  
Coryneform Bacteria

The cellular fatty acid composition of Corynebacterium michiganense subsp. sepedonicum strains recovered from potato and sugar beet hosts were determined using gas-liquid chromatography. Fatty acid profiles were compared to profiles from other plant pathogenic coryneform bacteria. The most prevalent fatty acids present in C. michiganense subsp. sepedonicum were 12-methyl-tetradecanoic acid (a15:0), 14-methyl-hexadecanoic acid (a17:0), 14-methyl-pentadecanoic acid (i16:0), 12-methyl-4-tetradecenoic acid (a15:1), hexadecanoic acid (16:0), cis-9-octadecenoic acid (18:1c), and cis-9,12-octadecadienoic acid (18:2). In addition, some strains contained smaller amounts of 14, 15, 16, 17, 18, and 19 carbon fatty acids. All strains of plant pathogenic coryneform bacteria tested could be differentiated on the basis of either total fatty acid content (qualitative) or by ratios of cellular fatty acids (relative quantitative differences), e.g., a15:0/i16:0, a17:0/i16:0, a15:0/a17:0, i16:0/a15:1, a15:1/16:0, and 16:0/18:1. Strains of C. michiganense subsp. sepedonicum from sugar beet and potato were qualitatively and quantitatively very similar. On the basis of these results, it was clear that the endophytic strains of C.m. subsp. sepedonicum recovered from healthy sugar beets were indistinguishable from pathogenic strains recovered from potato. The bacteria from the two hosts should be considered as members of the same subspecies.

scholarly journals Identification of A Liverwort Fossil on Pottery from A Church Excavation in Northern Sudan: Evidence for Moist Paleoenvironment

2020 ◽  
Vol 8 (3) ◽  
pp. 92-96
Author(s):  
Ikram M. Ahmed ◽  
Yahia F. Tahir ◽  
Ibrahim I. Tomsah ◽  
Ibrahim E. Ali
Keyword(s):  
Methyl Ester ◽  
Acid Methyl Ester ◽  
Analytical Techniques ◽  
Decanoic Acid ◽  
First Record ◽  
Hexadecenoic Acid ◽  
Dodecanoic Acid ◽  
Hexadecanoic Acid ◽  
Sea State ◽  
Tetradecanoic Acid

This paper aims to document the first record of coalified compression fossil of a liverwort on pottery from a church excavation in the desert, northern Sudan. The outline or surface feature of the fossil is clearly observed. Morphological distortion is minimal while the internal anatomy is not preserved. The shapes of the archaeological specimens are closely similar to the morphology of a Riccia sp collected from the Red Sea state and the Blue Nile bank in Khartoum state. Energy-Dispersive X-ray fluorescence (EDXRF), Scanning Electron Microscopy with Energy (SEM/EDS), and Gas Chromatography and Mass Spectroscopy (GC-Mass) analytical techniques were used to determine the chemical composition of the fossil materials. Higher concentrations were reported for Carbon and Oxygen indicating the organic nature of the materials and also excluded the presence of manganese dentrites which perfectly imitate liverwort fossils. Also n-hexadecanoic acid, dodecanoic acid, tetradecanoic acid, hexadecanoic acid, methyl ester, cis-9-hexadecenoic acid, 9, 12-octadecadienoic acid (z,z)-, methyl ester,tert-butyldimethylsilyl decanoic acid  were recorded for the fossil  materials. This study also provides additions to the chemical profile for the fresh material from the same genus which provides important data or monitors for the assessment of the chemical or thermal alteration in the corresponding coalified compression fossil.

scholarly journals Tomitella biformata gen. nov., sp. nov., a new member of the suborder Corynebacterineae isolated from a permafrost ice wedge

2010 ◽  
Vol 60 (12) ◽  
pp. 2803-2807 ◽  
Author(s):  
Taiki Katayama ◽  
Tomoko Kato ◽  
Michiko Tanaka ◽  
Thomas A. Douglas ◽  
Anatoli Brouchkov ◽  
...  
Keyword(s):  
16S Rrna ◽  
Octadecenoic Acid ◽  
Mycolic Acid ◽  
Diaminopimelic Acid ◽  
Hexadecenoic Acid ◽  
Gene Sequences ◽  
Tetradecanoic Acid ◽  
Mycolic Acids ◽  
Ice Wedge ◽  
Phosphatidylinositol Mannosides

Gram-reaction-positive, aerobic, non-spore-forming, irregular rod-shaped bacteria, designated AHU1821T and AHU1820, were isolated from an ice wedge in the Fox permafrost tunnel, Alaska. The strains were psychrophilic, growing at −5 to 27 °C. Phylogenetic analysis of the 16S rRNA and gyrB gene sequences indicated that the ice-wedge isolates formed a clade distinct from other mycolic-acid-containing bacteria within the suborder Corynebacterineae. The cell wall of strains AHU1821T and AHU1820 contained meso-diaminopimelic acid, arabinose and galactose, indicating chemotype IV. The muramic acids in the peptidoglycan were glycolated. The predominant menaquinone was MK-9(H2). The polar lipids consisted of diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylinositol, phosphatidylinositol mannosides and an unidentified glycolipid. The major fatty acids were hexadecenoic acid (C16 : 1), hexadecanoic acid (C16 : 0), octadecenoic acid (C18 : 1) and tetradecanoic acid (C14 : 0). Tuberculostearic acid was present in relatively small amounts (1 %). Strains AHU1821T and AHU1820 contained mycolic acids with 42–52 carbons. The DNA G+C content of the two strains was 69.3–71.6 mol% (T m). 16S rRNA, rpoB and recA gene sequences were identical between strains AHU1821T and AHU1820 and those of the gyrB gene showed 99.9 % similarity. Based on phylogenetic and phenotypic evidence, strains AHU1821T and AHU1820 represent a single novel species of a novel genus, for which the name Tomitella biformata gen. nov., sp. nov. is proposed. The type strain of Tomitella biformata is AHU1821T (=DSM 45403T =NBRC 106253T).

scholarly journals A Study of Coconut (Cocos Nucifera L.) Phosphatidylcholine Species

2018 ◽  
Vol 34 (6) ◽  
pp. 2963-2968
Author(s):  
Dwi Hudiyanti ◽  
Marliana Jayanti ◽  
Muhammad Fuad Al-Khafiz ◽  
Khairul Anam
Keyword(s):  
Octadecadienoic Acid ◽  
Cocos Nucifera ◽  
Octadecenoic Acid ◽  
Hexadecenoic Acid ◽  
Dodecanoic Acid ◽  
Octadecanoic Acid ◽  
Tetradecanoic Acid ◽  
Chromatography Analysis ◽  
Fatty Acid Chain ◽  
Cocos Nucifera L

Coconut (Cocos nucifera L.) phosphatidylcholines, or CocoPCs species are studied in this paper. CocoPCs is fractionated from coconut phospholipids (CocoPLs) using methanol eluent in silica column chromatography. Analysis of the CocoPCs, by FTIR, GCMS and LCMS, reveals that among the isolated CocoPCs species are 16:0/18:0-PC with m/z 763 at Rf 6.02 and 18:1-LysoPC with m/z 522 at Rf 4.93. The composition of CocoPCs fatty acid chain residues are Dodecanoic acid (C12:0), Tetradecanoic acid (C14:0), 9-Hexadecenoic acid (C16:1), Hexadecanoic acid (C16:0), 9,12-Octadecadienoic acid (Z,Z) (C18:2), 9-Octadecenoic acid (C18:1) and Octadecanoic acid (C18:0). The CocoPCs content is 6.317% of 100 mg CocoPLs.

scholarly journals Chemical Compounds of Malacca Leaf (Phyllanthus emblica) after Triple Extraction with N-Hexane, Ethyl Acetate, and Ethanol

2020 ◽  
Vol 2020 ◽  
pp. 1-5 ◽  
Author(s):  
Nuzul Asmilia ◽  
Yudha Fahrimal ◽  
Mahdi Abrar ◽  
Rinidar Rinidar
Keyword(s):  
Ethyl Acetate ◽  
Ethanol Extract ◽  
Chemical Compounds ◽  
Hexadecenoic Acid ◽  
Phyllanthus Emblica ◽  
Octadecanoic Acid ◽  
Hexadecanoic Acid ◽  
Tetradecanoic Acid ◽  
Traditional Medicines ◽  
Chemical Content

Malacca (Phyllanthus emblica) is one of the plants that is often by the community in the Aceh Besar district of Indonesia as a traditional medicine for the treatment of various diseases such as antimicrobial, antibacterial, antifungals, antivirals, antimutagenic, antimalaria, and antiallergic. This research was conducted to analyze the content of chemical compounds in the ethanol extract of the Malacca leaf (EEDM) using a gas chromatography-mass spectrophotometer (GC-MS). Malacca leaves were extracted by the maceration method using n-hexane, ethyl acetate, and ethanol. The GC-MS analysis showed EEDM contained 22 chemical compounds. The highest chemical content of EEDM is octadecanoic acid reaching 22.93%, 9,12-octadecanoic acid 14.99%, octadecanoic acid 7.59%, 9-hexadecenoic acid 6.17%, octadecanoic acid 5.95%, octadecanal 5.59%, 9,12-octadecanoic acid 5.06%, 3-eicosyne 4.75%, 1-hexadecenoic acid 4.08%, 11-tetradecen-1-ol 2.92%, 2-furanmethanol 2.83%, delta-guaiene 2.43%, cyclohexane 2.13%, hexadecanoic acid 1.99%, sativen 1.87%, octadecanoic acid 1.52%, 1H-cyclopropaanaphthalene 1.40%, tetradecanoic acid 1.40%, 3,7,11-tridecatrienenitrile 1.20%, caryophellene 1.11%, 2H-pyran 1.07%, and trans-caryophellene 1.03%. This study clearly shows the presence of fatty acids which play a major role in the efficacy of these traditional medicines particularly as antioxidant and antimalarial.

scholarly journals Occurrence of Cis-11,12-Methylene-Hexadecanoic Acid in the Red Alga Solieria pacifica (Yamada) Yoshida

Molecules ◽  
2021 ◽  
Vol 26 (8) ◽  
pp. 2286
Author(s):  
Gwang-Woo Kim ◽  
Jae-Man Sim ◽  
Yutaka Itabashi ◽  
Min-Jeong Jung ◽  
Joon-Young Jun
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Red Alga ◽  
Proton Nuclear Magnetic Resonance ◽  
Animal Origin ◽  
Monoenoic Acid ◽  
Resonance Spectroscopy ◽  
Hexadecenoic Acid ◽  
Cyclopropane Fatty Acid ◽  
Hexadecanoic Acid

Fatty acids in marine algae have attracted the attention of natural chemists because of their biological activity. The fatty acid compositions of the Solieriaceae families (Rhodophyceae, Gaigartinales) provide interesting information that unusual cyclic fatty acids have been occasionally found. A survey was conducted to profile the characteristic fatty acid composition of the red alga Solieria pacifica (Yamada) Yoshida using gas chromatography-mass spectrometry (GC-MS), infrared spectroscopy (IR), and proton nuclear magnetic resonance spectroscopy (1H-NMR). In S. pacifica, two cyclopentyl fatty acids, 11-cyclopentylundecanoic acid (7.0%), and 13-cyclopentyltridecanoic acid (4.9%), and a cyclopropane fatty acid, cis-11,12-methylene-hexadecanoic acid (7.9%) contributed significantly to the overall fatty acid profile. In particular, this cyclopropane fatty acid has been primarily found in bacteria, rumen microorganisms or foods of animal origin, and has not previously been found in any other algae. In addition, this alga contains a significant amount of the monoenoic acid cis-11-hexadecenoic acid (9.0%). Therefore, cis-11,12-methylene-hexadecanoic acid in S. pacifica was likely produced by methylene addition to cis-11-hexadecenoic acid.

scholarly journals Seroprevalence of Antibodies against SARS-CoV-2 in Children with Juvenile Idiopathic Arthritis a Case-Control Study

2021 ◽  
Vol 10 (8) ◽  
pp. 1771
Author(s):  
Violetta Opoka-Winiarska ◽  
Ewelina Grywalska ◽  
Izabela Korona-Glowniak ◽  
Katarzyna Matuska ◽  
Anna Malm ◽  
...  
Keyword(s):  
Juvenile Idiopathic Arthritis ◽  
Disease Activity ◽  
Disease Activity Score ◽  
Juvenile Arthritis ◽  
Activity Score ◽  
Control Group ◽  
Healthy Children ◽  
Serum Samples ◽  
History Of ◽  
Novel Coronavirus

There is limited data on the effect of the novel coronavirus disease (COVID-19) caused by severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) on pediatric rheumatology. We examined the prevalence of antibodies against SARS-CoV-2 in children with juvenile idiopathic arthritis (JIA) and a negative history of COVID-19 and the correlation of the presence of these antibodies with disease activity measured by juvenile arthritis disease activity score (JADAS). In total, 62 patients diagnosed with JIA, under treatment with various antirheumatic drugs, and 32 healthy children (control group) were included. Serum samples were analyzed for inflammatory markers and antibodies and their state evaluated with the juvenile arthritis disease activity score (JADAS). JIA patients do not have a higher seroprevalence of anti-SARS-CoV-2 antibodies than healthy subjects. We found anti-SARS-CoV-2 antibodies in JIA patients who did not have a history of COVID-19. The study showed no unequivocal correlation between the presence of SARS-CoV-2 antibodies and JIA activity; therefore, this relationship requires further observation. We also identified a possible link between patients’ humoral immune response and disease-modifying antirheumatic treatment, which will be confirmed in follow-up studies.

scholarly journals A non-targeted LC–MS metabolic profiling of pregnancy: longitudinal evidence from healthy and pre-eclamptic pregnancies

Metabolomics ◽  
2021 ◽  
Vol 17 (2) ◽  
Author(s):  
Tiina Jääskeläinen ◽  
◽  
Olli Kärkkäinen ◽  
Jenna Jokkala ◽  
Anton Klåvus ◽  
...  
Keyword(s):  
Large Scale ◽  
Scale Effects ◽  
Late Pregnancy ◽  
Metabolite Profile ◽  
Adverse Outcomes ◽  
Liquid Chromatography Mass Spectrometry ◽  
Targeted Metabolomics ◽  
Serum Samples ◽  
Healthy Women ◽  
Maternal Metabolism

Abstract Introduction Maternal metabolism changes substantially during pregnancy. However, few studies have used metabolomics technologies to characterize changes across gestation. Objectives and methods We applied liquid chromatography–mass spectrometry (LC–MS) based non-targeted metabolomics to determine whether the metabolic profile of serum differs throughout the pregnancy between pre-eclamptic and healthy women in the FINNPEC (Finnish Genetics of Preeclampsia Consortium) Study. Serum samples were available from early and late pregnancy. Results Progression of pregnancy had large-scale effects to the serum metabolite profile. Altogether 50 identified metabolites increased and 49 metabolites decreased when samples of early pregnancy were compared to samples of late pregnancy. The metabolic signatures of pregnancy were largely shared in pre-eclamptic and healthy women, only urea, monoacylglyceride 18:1 and glycerophosphocholine were identified to be increased in the pre-eclamptic women when compared to healthy controls. Conclusions Our study highlights the need of large-scale longitudinal metabolomic studies in non-complicated pregnancies before more detailed understanding of metabolism in adverse outcomes could be provided. Our findings are one of the first steps for a broader metabolic understanding of the physiological changes caused by pregnancy per se.

scholarly journals GC-MS ANALYSIS OF INVASIVE AQUATIC WEED, PISTIA STRATIOTES L. AND EICHHORNIA CRASSIPES (MART.) SOLMS

2017 ◽  
Vol 9 (3) ◽  
pp. 111 ◽  
Author(s):  
Tulika Tyagi ◽  
Mala Agarwal
Keyword(s):  
Methyl Ester ◽  
Ethyl Ester ◽  
Eichhornia Crassipes ◽  
Acid Methyl Ester ◽  
Acid Ethyl Ester ◽  
Pistia Stratiotes ◽  
Aquatic Weed ◽  
Hexadecenoic Acid ◽  
Hexadecanoic Acid ◽  
Acid Methyl

Objective: To investigate the bioactive components of an invasive aquatic weed, Pistia stratiotes L. and Eichhornia crassipes (Mart.) Solms vegetative parts by using Gas Chromatography-Mass Spectrometer (GC-MS).Methods: The chemical compositions of the ethanol extract of whole plant Pistia stratiotes L. and Eichhornia crassipes (Mart.) Solms was investigated using Agilent Technologies GC-MS (GC-7890A, MS 5975C).Results: The results of GC-MS analysis of the ethanolic extract revealed the existence of 28 phytochemical compounds in Pistia stratiotes L. n-Hexadecanoic acid,-11-Hexadecenoic acid, ethyl ester, Hexadecanoic acid, ethyl ester, Octadecanoic acid, ethyl ester, 2-Cyclopenten-1-one, 5-hydroxy-2,3-dimethyl, L-Glutamine, 2-Pentadecanone, 6,10,14-trimethyl, Linolelaidic acid, methyl ester, 9,12,15-Octadecatrienoic acid, methyl ester,(Z,Z,Z), Nonadecane, 12,15-Octadecadiynoic acid, methyl ester, Hexadecanoic acid, 2-hydroxy-1-(hydroxymethyl)ethyl ester, Diisooctyl phthalate, Docosanoic acid, ethyl ester, Stigmasterol, Bis(2-ethylhexyl) phthalate, 1-Monolinoleoylglycerol trimethylsilyl ether, Ethyl iso-allocholate are the major compound.The ethanolic extract of Eichhornia crassipes (Mart.) Solms contains 43 phytochemical compounds of high and low molecular weight n-Hexadecanoic acid, E-11-Hexadecenoic acid, ethyl ester, Palmitic acid, Phytol, 9,12,15-Octadecatrienal, 9,12-Octadecadienoic acid, ethyl ester, Linolenic acid, ethyl ester, Stearic acid, ethyl ester, Hexadecanoic acid, 2-hydroxy-1-(hydroxymethyl)ethyl ester, α-Glyceryl linolenate, 1-Monolinoleoylglycerol trimethylsilyl ether, Linoleic acid, 2,3-bis-(O-TMS)-propyl ester, Stigmasterol, Linolelaidic acid, methyl ester, 9,12,15-Octadecatrienoic acid, ethyl ester, (Z,Z,Z), Ethyl iso-allocholate, Cholesta-22,24-dien-5-ol, 4,4-dimethyl are the major compounds.These results indicates Pistia stratiotes L. and Eichhornia crassipes (Mart.) Solms possess potent antioxidant, anti-inflammatory, anticancer, antitumour, antiarthritic, cancer preventive, antibacterial effects so can be recommended as a plant of phytopharmaceutical importance.Conclusion: The ethanol extract of Pistia stratiotes L. and Eichhornia crassipes (Mart.) Solms proves as a potential source of bioactive compounds of pharmacological importance.

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