المؤلفون: Xue, Liang, Otieno, Maureen, Colson, Kimberly, Neto, Catherine

المصدر: Plants (2223-7747); Oct2023, Vol. 12 Issue 20, p3595, 19p

مصطلحات موضوعية: CRANBERRIES, FRUIT, FRUIT growing, METABOLOMIC fingerprinting, ORGANIC acids

مصطلحات جغرافية: WEST Coast (N.Z.), ATLANTIC Coast (U.S.)

مستخلص: The impact of the growth environment on the production of health-promoting phytochemicals in cranberry fruit (Vaccinium macrocarpon Aiton) is not well established despite increased production worldwide. We investigated the secondary metabolite composition among the cranberry fruit of nine cultivars produced in two major coastal North American growing regions that differ in climate. Using ¹H NOESY NMR to generate metabolic fingerprints, principal component analysis revealed variation between the two regions and identified likely contributing metabolites. Triterpenoids ursolic and oleanolic acid, as well as citric and malic acids, were quantified using ¹H qNMR, and anthocyanins and flavonols were determined by HPLC-DAD. Total proanthocyanidins (PACs), total soluble phenolics, and DPPH free-radical scavenging antioxidant activity were also evaluated. Across all cultivars, anthocyanins, flavonols, and total phenolic content were significantly higher in West Coast fruit than East Coast fruit, correlating with a regional trend of higher antioxidant activity in fruit grown on the West Coast. The opposite trend was observed for triterpenoids and organic acids, which were significantly higher across cultivars in East Coast fruit. These trends persisted over two growing seasons. The study demonstrates that climate plays an important role in the production of antioxidant and anti-inflammatory phytochemicals in cranberry plants. [ABSTRACT FROM AUTHOR]

: Copyright of Plants (2223-7747) is the property of MDPI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

المؤلفون: Kılınc, Hilal, D'Urso, Gilda, Paolillo, Annunziata, Alankus, Ozgen, Piacente, Sonia, Masullo, Milena

المصدر: Metabolites (2218-1989); Oct2023, Vol. 13 Issue 10, p1051, 14p

مصطلحات موضوعية: METABOLOMICS, METABOLOMIC fingerprinting, NUCLEAR magnetic resonance, PHENYLPROPANOIDS, CARBON tetrachloride, LIQUID chromatography

مستخلص: The application of metabolomics to the study of plants is growing because of the current development of analytical techniques. The most commonly used analytical technology driving plant metabolomics studies is Mass Spectrometry (MS) coupled to liquid chromatography (LC). In recent years, Nuclear Magnetic Resonance (NMR) spectroscopy, not requiring a previous chromatographic separation, has been receiving growing attention for metabolite fingerprinting of natural extracts. Herein, an integrated LC-MS and ¹H NMR metabolomic approach provided a comprehensive phytochemical characterization of Symphytum anatolicum whole plant, taking into account both primary and specialized metabolites. Moreover, the NMR analyses provided direct quantitative information. Species belonging to the Symphytum genus, known as comfrey, have shown several biological activities including anti-inflammatory, analgesic, hepatoprotective, antifungal, and antibacterial. The LC-MS profile showed the presence of 21 main specialized metabolites, belonging to the classes of flavonoids, phenylpropanoids, salvianols, and oxylipins. The ¹H NMR spectrum revealed the occurrence of metabolites including organic acids, phenolics, flavonoids, sugars, and amino acids. A quantitative analysis of these metabolites was performed and their concentration was obtained with respect to the known concentration of TSP, by means of the software package Chenomx which allows quantification of individual components in the NMR spectra. Furthermore, the phenolic content, antioxidant activity, glucosidase, and tyrosinase inhibitory activity of S. anatolicum extract were evaluated. The resulting bioactivity profile suggests how S. anatolicum represents a source of metabolites with health-promoting activity. [ABSTRACT FROM AUTHOR]

: Copyright of Metabolites (2218-1989) is the property of MDPI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

المؤلفون: Hackshaw, Kevin V., Yao, Siyu, Bao, Haona, de Lamo Castellvi, Silvia, Aziz, Rija, Nuguri, Shreya Madhav, Yu, Lianbo, Osuna-Diaz, Michelle M., Brode, W. Michael, Sebastian, Katherine R., Giusti, M. Monica, Rodriguez-Saona, Luis

المصدر: Biomedicines; Oct2023, Vol. 11 Issue 10, p2704, 16p

مصطلحات موضوعية: POST-acute COVID-19 syndrome, FIBROMYALGIA, METABOLOMIC fingerprinting, CHEMOMETRICS, MUSCULOSKELETAL system diseases, DIAGNOSIS

مستخلص: Post Acute Sequelae of SARS-CoV-2 infection (PASC or Long COVID) is characterized by lingering symptomatology post-initial COVID-19 illness that is often debilitating. It is seen in up to 30–40% of individuals post-infection. Patients with Long COVID (LC) suffer from dysautonomia, malaise, fatigue, and pain, amongst a multitude of other symptoms. Fibromyalgia (FM) is a chronic musculoskeletal pain disorder that often leads to functional disability and severe impairment of quality of life. LC and FM share several clinical features, including pain that often makes them indistinguishable. The aim of this study is to develop a metabolic fingerprinting approach using portable Fourier-transform mid-infrared (FT-MIR) spectroscopic techniques to diagnose clinically similar LC and FM. Blood samples were obtained from LC (n = 50) and FM (n = 50) patients and stored on conventional bloodspot protein saver cards. A semi-permeable membrane filtration approach was used to extract the blood samples, and spectral data were collected using a portable FT-MIR spectrometer. Through the deconvolution analysis of the spectral data, a distinct spectral marker at 1565 cm⁻¹ was identified based on a statistically significant analysis, only present in FM patients. This IR band has been linked to the presence of side chains of glutamate. An OPLS-DA algorithm created using the spectral region 1500 to 1700 cm⁻¹ enabled the classification of the spectra into their corresponding classes (Rcv > 0.96) with 100% accuracy and specificity. This high-throughput approach allows unique metabolic signatures associated with LC and FM to be identified, allowing these conditions to be distinguished and implemented for in-clinic diagnostics, which is crucial to guide future therapeutic approaches. [ABSTRACT FROM AUTHOR]

: Copyright of Biomedicines is the property of MDPI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

المؤلفون: Averina, Olga V., Kovtun, Aleksey S., Mavletova, Dilara A., Ziganshin, Rustam H., Danilenko, Valery N., Mihaylova, Dasha, Blazheva, Denica, Slavchev, Aleksandar, Brazkova, Mariya, Ibrahim, Salam A., Krastanov, Albert

المصدر: Foods; Sep2023, Vol. 12 Issue 18, p3356, 18p

مصطلحات موضوعية: BIFIDOBACTERIUM, BIFIDOBACTERIUM longum, OXIDATIVE stress, PROBIOTICS, METABOLOMIC fingerprinting, OXIDATION-reduction reaction, AMINO acid metabolism, OXIDANT status

مستخلص: Bifidobacterium is a predominant and important genus in the bacterial population of the human gut microbiota. Despite the increasing number of studies on the beneficial functionality of bifidobacteria for human health, knowledge about their antioxidant potential is still insufficient. Several in vivo and in vitro studies of Bifidobacterium strains and their cellular components have shown good antioxidant capacity that provided a certain protection of their own and the host's cells. Our work presents the data of transcriptomic, proteomic, and metabolomic analyses of the growing and stationary culture of the probiotic strain B. longum subsp. longum GT15 after exposure to hydrogen peroxide for 2 h and oxygen for 2 and 4 h. The results of the analysis of the sequenced genome of B. longum GT15 showed the presence of 16 gene-encoding proteins with known antioxidant functions. The results of the full transcriptomic analysis demonstrated a more than two-fold increase of levels of transcripts for eleven genes, encoding proteins with antioxidant functions. Proteomic data analysis showed an increased level of more than two times for glutaredoxin and thioredoxin after the exposure to oxygen, which indicates that the thioredoxin-dependent antioxidant system may be the major redox homeostasis system in B. longum bacteria. We also found that the levels of proteins presumably involved in global stress, amino acid metabolism, nucleotide and carbohydrate metabolism, and transport had significantly increased in response to oxidative stress. The metabolic fingerprint analysis also showed good discrimination between cells responding to oxidative stress and the untreated controls. Our results provide a greater understanding of the mechanism of oxidative stress response in B. longum and the factors that contribute to its survival in functional food products. [ABSTRACT FROM AUTHOR]

: Copyright of Foods is the property of MDPI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

المؤلفون: Khan, Samreen, Rai, Abhishek Kumar, Singh, Anjali, Singh, Saudan, Dubey, Basant Kumar, Lal, Raj Kishori, Negi, Arvind Singh, Birse, Nicholas, Trivedi, Prabodh Kumar, Elliott, Christopher T., Ch, Ratnasekhar

المصدر: Journal of Pharmaceutical Analysis; Sep2023, Vol. 13 Issue 9, p1041-1057, 17p

مصطلحات موضوعية: METABOLOMIC fingerprinting, WITHANIA somnifera, CHEMOMETRICS, TURMERIC, BASIL

الشركة/الكيان: WORLD Health Organization

مستخلص: Herbal medicines are popular natural medicines that have been used for decades. The use of alternative medicines continues to expand rapidly across the world. The World Health Organization suggests that quality assessment of natural medicines is essential for any therapeutic or health care applications, as their therapeutic potential varies between different geographic origins, plant species, and varieties. Classification of herbal medicines based on a limited number of secondary metabolites is not an ideal approach. Their quality should be considered based on a complete metabolic profile, as their pharmacological activity is not due to a few specific secondary metabolites but rather a larger group of bioactive compounds. A holistic and integrative approach using rapid and nondestructive analytical strategies for the screening of herbal medicines is required for robust characterization. In this study, a rapid and effective quality assessment system for geographical traceability, species, and variety-specific authenticity of the widely used natural medicines turmeric, Ocimum , and Withania somnifera was investigated using Fourier transform near-infrared (FT-NIR) spectroscopy-based metabolic fingerprinting. Four different geographical origins of turmeric, five different Ocimum species, and three different varieties of roots and leaves of Withania somnifera were studied with the aid of machine learning approaches. Extremely good discrimination (R ² > 0.98, Q² > 0.97, and accuracy = 1.0) with sensitivity and specificity of 100% was achieved using this metabolic fingerprinting strategy. Our study demonstrated that FT-NIR-based rapid metabolic fingerprinting can be used as a robust analytical method to authenticate several important medicinal herbs. [Display omitted] • FT-NIR-based rapid metabolic fingerprinting was proposed for the quality assessment of natural medicines. • Chemometric models including one-class and multivariate models, were used to authenticate natural medicines. • Potential fingerprint absorption wave numbers were identified for the classification. • Authenticity of samples were checked with blended and market samples. [ABSTRACT FROM AUTHOR]

: Copyright of Journal of Pharmaceutical Analysis is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

المؤلفون: Stocchero, Matteo, Cannet, Claire, Napoli, Claudia, Demetrio, Elena, Baraldi, Eugenio, Giordano, Giuseppe

المصدر: Metabolites (2218-1989); Sep2023, Vol. 13 Issue 9, p1029, 12p

مصطلحات موضوعية: SEPSIS, METABOLOMIC fingerprinting, PROOF of concept, MASS spectrometry, METABOLOMICS, METABOLITES

مستخلص: Low-field (LF) benchtop NMR is a new family of instruments available on the market, promising for fast metabolic fingerprinting and targeted quantification of specific metabolites despite a lack of sensitivity and resolution with respect to high-field (HF) instruments. In the present study, we evaluated the possibility to use the urinary metabolic fingerprint generated using a benchtop LF NMR instrument for an early detection of sepsis in preterm newborns, considering a cohort of neonates previously investigated by untargeted metabolomics based on Mass Spectrometry (MS). The classifier obtained behaved similarly to that based on MS, even if different classes of metabolites were taken into account. Indeed, investigating the regions of interest mainly related to the development of sepsis by a HF NMR instrument, we discovered a set of relevant metabolites associated to sepsis. The set included metabolites that were not detected by MS, but that were reported as relevant in other published studies. Moreover, a strong correlation between LF and HF NMR spectra was observed. The high reproducibility of the NMR spectra, the interpretability of the fingerprint in terms of metabolites and the ease of use make LF benchtop NMR instruments promising in discovering early-onset sepsis. [ABSTRACT FROM AUTHOR]

: Copyright of Metabolites (2218-1989) is the property of MDPI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

المؤلفون: Guardado, Miguel, Steurer, Martina, Chapin, Cheryl, Hernandez, Ryan D., Ballard, Philip L., Torgerson, Dara

المصدر: Metabolites (2218-1989); Sep2023, Vol. 13 Issue 9, p971, 14p

مصطلحات موضوعية: METABOLOMIC fingerprinting, PREMATURE infants, PARENTERAL feeding, ENTERAL feeding, ESSENTIAL amino acids, ANIMAL feeds, VITAMINS

مستخلص: Total Parenteral Nutrition (TPN), which uses intravenous administration of nutrients, minerals and vitamins, is essential for sustaining premature infants until they transition to enteral feeds, but there is limited information on metabolomic differences between infants on TPN and enteral feeds. We performed untargeted global metabolomics on urine samples collected between 23–30 days of life from 314 infants born <29 weeks gestational age from the TOLSURF and PROP cohorts. Principal component analysis across all metabolites showed a separation of infants solely on TPN compared to infants who had transitioned to enteral feeds, indicating global metabolomic differences between infants based on feeding status. Among 913 metabolites that passed quality control filters, 609 varied in abundance between infants on TPN vs. enteral feeds at p < 0.05. Of these, 88% were in the direction of higher abundance in the urine of infants on enteral feeds. In a subset of infants in a longitudinal analysis, both concurrent and delayed changes in metabolite levels were observed with the initiation of enteral feeds. These infants had higher concentrations of essential amino acids, lipids, and vitamins, which are necessary for growth and development, suggesting the nutritional benefit of an enteral feeding regimen. [ABSTRACT FROM AUTHOR]

: Copyright of Metabolites (2218-1989) is the property of MDPI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

المؤلفون: Lei, Junfeng, Shen, Lili, Zhang, Wei, Ma, Fangchao, Wang, Jingchen, Wei, Tingting, Xie, Chengping, Wang, Yanli, Wang, Qiang

المصدر: Plant Foods for Human Nutrition; Sep2023, Vol. 78 Issue 3, p590-596, 7p

مصطلحات موضوعية: GABA, NUCLEAR magnetic resonance spectroscopy, POTATOES, METABOLOMIC fingerprinting, POWDERS, THREONINE, CHOLINE

مستخلص: This study presents the metabolic profiling of potato powders obtained through various processing procedures and commercially available potato powders. The metabolic fingerprinting was conducted using ¹H NMR-based metabolomics coupled with machine learning projections. The results indicate hot air-dried potatoes have higher fumarate, glucose, malate, asparagine, choline, gamma aminobutyric acid (GABA), alanine, lactate, threonine, and fatty acids. In comparison, steam-cooked potatoes have higher levels of phenylalanine, sucrose, proline, citrate, glutamate, and valine. Moreover, the contents of metabolites in processed potatoes in this study were higher than those found in commercial potato powders, regardless of the drying or cooking methods used. The results indicate that a new processing technique may be developed to improve the nutritional value of potatoes. [ABSTRACT FROM AUTHOR]

: Copyright of Plant Foods for Human Nutrition is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

المؤلفون: Bassareo, Pier Paolo, D'Alto, Michele

المصدر: International Journal of Molecular Sciences; Sep2023, Vol. 24 Issue 17, p13227, 18p

مصطلحات موضوعية: PULMONARY hypertension, PULMONARY arterial hypertension, PROTON magnetic resonance spectroscopy, NUCLEAR magnetic resonance spectroscopy, METABOLOMICS, METABOLOMIC fingerprinting, RESPIRATION

مستخلص: Pulmonary hypertension (PH) is a multifaceted illness causing clinical manifestations like dyspnea, fatigue, and cyanosis. If left untreated, it often evolves into irreversible pulmonary arterial hypertension (PAH), leading to death. Metabolomics is a laboratory technique capable of providing insights into the metabolic pathways that are responsible for a number of physiologic or pathologic events through the analysis of a biological fluid (such as blood, urine, and sputum) using proton nuclear magnetic resonance spectroscopy or mass spectrometry. A systematic review was finalized according to the PRISMA scheme, with the goal of providing an overview of the research papers released up to now on the application of metabolomics to PH/PAH. So, eighty-five papers were identified, of which twenty-four concerning PH, and sixty-one regarding PAH. We found that, from a metabolic standpoint, the hallmarks of the disease onset and progression are an increase in glycolysis and impaired mitochondrial respiration. Oxidation is exacerbated as well. Specific metabolic fingerprints allow the characterization of some of the specific PH and PAH subtypes. Overall, metabolomics provides insights into the biological processes happening in the body of a subject suffering from PH/PAH. The disarranged metabolic pathways underpinning the disease may be the target of new therapeutic agents. Metabolomics will allow investigators to make a step forward towards personalized medicine. [ABSTRACT FROM AUTHOR]

: Copyright of International Journal of Molecular Sciences is the property of MDPI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

المؤلفون: Luís, Carla, Guerra-Carvalho, Bárbara, Braga, Patrícia C., Guedes, Carla, Patrício, Emília, Alves, Marco G., Fernandes, Ruben, Soares, Raquel

المصدر: Cells (2073-4409); Sep2023, Vol. 12 Issue 17, p2123, 14p

مصطلحات موضوعية: METABOLOMIC fingerprinting, CELL lines, CANCER cells, FAT cells, BREAST cancer, ADIPOGENESIS, METABOLOMICS

مستخلص: Molecular subtype (MS) is one of the most used classifications of breast cancer (BC). Four MSs are widely accepted according to receptor expression of estrogen, progesterone, and HER2. The impact of adipose tissue on BC MS metabolic impairment is still unclear. The present work aims to elucidate the metabolic alterations in breast cancer cell lines representing different MSs subjected to adipocyte associated factors. Preadipocytes isolated from human subcutaneous adipose tissue were differentiated into mature adipocytes. MS representative cell lines were exposed to mature adipocyte secretome. Extracellular medium was collected for metabolomics and RNA was extracted to evaluate enzymatic expression by RT-PCR. Adipocyte secretome exposure resulted in a decrease in the Warburg effect rate and an increase in cholesterol release. HER2+ cell lines (BT-474 and SK-BR-3) exhibited a similar metabolic pattern, in contrast to luminal A (MCF-7) and triple negative (TN) (MDA-MB-231), both presenting identical metabolisms. Anaplerosis was found in luminal A and TN representative cells, whereas cataplerotic reactions were likely to occur in HER2+ cell lines. Our results indicate that adipocyte secretome affects the central metabolism distinctly in each BC MS representative cell line. [ABSTRACT FROM AUTHOR]

: Copyright of Cells (2073-4409) is the property of MDPI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)