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Xiong Y, Luan Y, Yuan L, Hong W, Wang B, Zhao H, Zhang B. Aerobic exercise attenuates high-fat diet-induced renal injury through kidney metabolite modulation in mice. Ren Fail 2024; 46:2286330. [PMID: 38390733 PMCID: PMC10896126 DOI: 10.1080/0886022x.2023.2286330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 11/16/2023] [Indexed: 02/24/2024] Open
Abstract
PURPOSE To investigate the preventive effect of aerobic exercise on renal damage caused by obesity. METHODS The mice in the Control (Con) and Control + Exercise (Con + Ex) groups received a standard chow diet for the 21-week duration of the study, while the High-fat diet (HFD) group and High-fat diet + Exercise (HFD + Ex) group were fed an HFD. Mice were acclimated to the laboratory for 1 week, given 12 weeks of being on their respective diets, and then the Con + Ex and HFD + Ex groups were subjected to moderate intensity aerobic treadmill running 45 min/day, 5 days/week for 8 weeks. RESULTS We found that HFD-induced obesity mainly impacts kidney glycerin phospholipids, glycerides, and fatty acyls, and aerobic exercise mainly impacts kidney glycerides, amino acids and organic acids as well as their derivatives. We identified 18 metabolites with significantly altered levels that appear to be involved in aerobic exercise mediated prevention of HFD-induced obesity and renal damage, half of which were amino acids and organic acids and their derivatives. CONCLUSION Aerobic exercise rewires kidney metabolites to reduce high-fat diet-induced obesity and renal injury.
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Affiliation(s)
- Yingzhe Xiong
- School of Physical Education and Sports, Central China Normal University, Wuhan, China
- Division of Sports Science and Physical Education, Tsinghua University, Beijing, China
| | - Yisheng Luan
- Division of Sports Science and Physical Education, Tsinghua University, Beijing, China
| | - Lingfeng Yuan
- Division of Sports Science and Physical Education, Tsinghua University, Beijing, China
| | - Weihao Hong
- Division of Sports Science and Physical Education, Tsinghua University, Beijing, China
| | - Bin Wang
- School of Physical Education and Sports, Central China Normal University, Wuhan, China
| | - Hua Zhao
- School of Physical Education and Sports, Central China Normal University, Wuhan, China
| | - Bing Zhang
- Division of Sports Science and Physical Education, Tsinghua University, Beijing, China
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Tsikas D. Acetazolamide and human carbonic anhydrases: retrospect, review and discussion of an intimate relationship. J Enzyme Inhib Med Chem 2024; 39:2291336. [PMID: 38078375 DOI: 10.1080/14756366.2023.2291336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 11/30/2023] [Indexed: 12/18/2023] Open
Abstract
Acetazolamide (AZM) is a strong pharmacological sulphonamide-type (R-SO2-NH2, pKa 7.2) inhibitor of the activity of several carbonic anhydrase (CA) isoforms, notably of renal CA II (Ki, 12 nM) and CA IV (Ki, 74 nM). AZM is clinically used for about eighty years in various diseases including epilepsy and glaucoma. Pharmacological AZM increases temporarily the urinary excretion of bicarbonate (HCO3-) and sodium ions (Na+) and sustainably the urinary pH. AZM is excreted almost unchanged over several hours at high rates in the urine. Closely parallel concentrations of circulating and excretory AZM are observed upon administration of therapeutical doses of AZM. In a proof-of-principle study, we investigated the effects of the ingestion of a 250-mg AZM-containing tablet by a healthy volunteer on the urinary excretion of organic and inorganic substances over 5 h (range, 0, 0.5, 1, 1.5, 2, 3, 4, 5 h). Measured analytes included: AZM, amino acids and their metabolites such as guanidinoacetate, i.e. the precursor of creatine, of asymmetrically (ADMA) and symmetrically (SDMA) dimethylated arginine, nitrite (O = N-O-, pKa 3.4) and nitrate (O2N-O-, pKa -1.37), the major metabolites of nitric oxide (NO), the C-H acidic malondialdehyde (MDA; (CHO)2CH2, pKa 4.5), and creatinine for correction of analytes excretion. All analytes were measured by validated isotopologues using gas chromatography-mass spectrometry (GC-MS) methods. AZM excretion in the urine reached its maximum value after 2 h and was fairly stable for the next 3 h. Time series analysis by the ARIMA method was performed. AZM ingestion increased temporarily the urinary excretion of the amino acids Leu + Ile, nitrite and nitrate, decreased temporarily the urinary excretion of other amino acids. AZM decreased sustainably the urinary excretion of MDA, a biomarker of oxidative stress (i.e. lipid peroxidation). Whether this decrease is due to inhibition of the excretion of MDA or attenuation of oxidative stress by AZM is unknown. The acute and chronic effects of AZM on the urinary excretion of electrolytes and physiological substances reported in the literature are discussed in depth in the light of its extraordinary pharmacokinetics and pharmacodynamics. Tolerance development/drug resistance to AZM in chronic use and potential mechanisms are also addressed.
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Affiliation(s)
- Dimitrios Tsikas
- Core Unit Proteomics, Institute of Toxicology, Hannover Medical School, Hannover, Germany
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Adjeroud M, Kecha M, Escuder-Rodríguez JJ, Becerra M, González-Siso MI. AMWEst, a new thermostable and detergent-tolerant esterase retrieved from the Albian aquifer. Appl Microbiol Biotechnol 2024; 108:114. [PMID: 38204131 PMCID: PMC10781878 DOI: 10.1007/s00253-023-12844-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 09/22/2023] [Accepted: 10/02/2023] [Indexed: 01/12/2024]
Abstract
A fosmid library was constructed with the metagenomic DNA from the high-temperature sediment-rich water of the Albian aquifer (Algeria). Functional screening of this library was subsequently done looking for genes encoding lipolytic enzymes. We identified a novel gene named AMWEst (1209 base pairs) encoding a protein of 402 amino acids with a predicted molecular weight of 43.44 kDa and conferring esterase activity. AMWEst was successfully overexpressed in the yeast mesophilic host Saccharomyces cerevisiae, and the expression system used proved to be efficient and produced sufficient activity for its biochemical characterization. Multiple sequence alignment indicated that AMWEst contained a conserved pentapeptide motif (Gly120-His121-Ser122-Gln123-Gly124). The optimum pH and temperature of the recombinant esterase AMWEst were 8 and 80 °C, respectively. Additionally, AMWEst showed higher activity towards short carbon substrates and showed maximum activity for p-nitrophenyl hexanoate (C6). Notably, AMWEst has a remarkable thermostability, and the enzyme retains almost maximum activity at 70 °C after incubation for 1 h. Moreover, enzyme activity was enhanced by high concentrations of SDS and Triton X-100 detergents. KEY POINTS: • A novel thermostable esterase has been retrieved through functional metagenomics • The esterase is detergent-tolerant, which is attractive for some applications • The esterase can be expressed in a yeast mesophilic host to enhance its yield.
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Affiliation(s)
- Moussa Adjeroud
- Laboratoire de Mycologie, Département de Biologie Appliquée, de Biotechnologie Et de L'Activité Microbienne (LaMyBAM), Faculté Des Sciences de La Nature Et de La Vie, Université Des Frères Mentouri Constantine 1, 25000, Constantine, Algeria
- University of A Coruña, Grupo EXPRELA, Facultade de Ciencias, Centro Interdisciplinar de Química e Bioloxía (CICA), A Coruña, Spain
| | - Mouloud Kecha
- Laboratoire de Microbiologie Appliquée, Faculté Des Sciences de La Nature Et de La Vie, Département de Microbiologie, Université de Bejaia, Campus Targa Ouzemmour, 6000, Bejaia, Algeria
| | - Juan-José Escuder-Rodríguez
- University of A Coruña, Grupo EXPRELA, Facultade de Ciencias, Centro Interdisciplinar de Química e Bioloxía (CICA), A Coruña, Spain
| | - Manuel Becerra
- University of A Coruña, Grupo EXPRELA, Facultade de Ciencias, Centro Interdisciplinar de Química e Bioloxía (CICA), A Coruña, Spain.
| | - María-Isabel González-Siso
- University of A Coruña, Grupo EXPRELA, Facultade de Ciencias, Centro Interdisciplinar de Química e Bioloxía (CICA), A Coruña, Spain.
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Haeger G, Jolmes T, Oyen S, Jaeger KE, Bongaerts J, Schörken U, Siegert P. Novel recombinant aminoacylase from Paraburkholderia monticola capable of N-acyl-amino acid synthesis. Appl Microbiol Biotechnol 2024; 108:93. [PMID: 38204129 PMCID: PMC10781821 DOI: 10.1007/s00253-023-12868-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 11/12/2023] [Accepted: 11/23/2023] [Indexed: 01/12/2024]
Abstract
N-Acyl-amino acids can act as mild biobased surfactants, which are used, e.g., in baby shampoos. However, their chemical synthesis needs acyl chlorides and does not meet sustainability criteria. Thus, the identification of biocatalysts to develop greener synthesis routes is desirable. We describe a novel aminoacylase from Paraburkholderia monticola DSM 100849 (PmAcy) which was identified, cloned, and evaluated for its N-acyl-amino acid synthesis potential. Soluble protein was obtained by expression in lactose autoinduction medium and co-expression of molecular chaperones GroEL/S. Strep-tag affinity purification enriched the enzyme 16-fold and yielded 15 mg pure enzyme from 100 mL of culture. Biochemical characterization revealed that PmAcy possesses beneficial traits for industrial application like high temperature and pH-stability. A heat activation of PmAcy was observed upon incubation at temperatures up to 80 °C. Hydrolytic activity of PmAcy was detected with several N-acyl-amino acids as substrates and exhibited the highest conversion rate of 773 U/mg with N-lauroyl-L-alanine at 75 °C. The enzyme preferred long-chain acyl-amino-acids and displayed hardly any activity with acetyl-amino acids. PmAcy was also capable of N-acyl-amino acid synthesis with good conversion rates. The best synthesis results were obtained with the cationic L-amino acids L-arginine and L-lysine as well as with L-leucine and L-phenylalanine. Exemplarily, L-phenylalanine was acylated with fatty acids of chain lengths from C8 to C18 with conversion rates of up to 75%. N-lauroyl-L-phenylalanine was purified by precipitation, and the structure of the reaction product was verified by LC-MS and NMR. KEY POINTS: • A novel aminoacylase from Paraburkholderia monticola was cloned, expressed in E. coli and purified. • The enzyme PmAcy exhibits exceptional temperature and pH stability and a broad substrate spectrum. • Synthesis of acyl amino acids was achieved in good yields.
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Affiliation(s)
- Gerrit Haeger
- Institute of Nano- and Biotechnologies, Aachen University of Applied Sciences, 52428, Jülich, Germany
| | - Tristan Jolmes
- Faculty of Applied Natural Sciences, TH Köln University of Applied Sciences-Leverkusen Campus, Leverkusen, Germany
| | - Sven Oyen
- Institute of Nano- and Biotechnologies, Aachen University of Applied Sciences, 52428, Jülich, Germany
| | - Karl-Erich Jaeger
- Institute of Molecular Enzyme Technology, Heinrich Heine University Düsseldorf, 52425, Jülich, Germany
- Institute of Bio- and Geosciences IBG-1: Biotechnology, Forschungszentrum Jülich GmbH, 52425, Jülich, Germany
| | - Johannes Bongaerts
- Institute of Nano- and Biotechnologies, Aachen University of Applied Sciences, 52428, Jülich, Germany
| | - Ulrich Schörken
- Faculty of Applied Natural Sciences, TH Köln University of Applied Sciences-Leverkusen Campus, Leverkusen, Germany
| | - Petra Siegert
- Institute of Nano- and Biotechnologies, Aachen University of Applied Sciences, 52428, Jülich, Germany.
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McIntosh MC, Ruple BA, Kontos NJ, Mattingly ML, Lockwood CM, Roberts MD. The effects of a sugar-free amino acid-containing electrolyte beverage on 5-kilometer performance, blood electrolytes, and post-exercise cramping versus a conventional carbohydrate-electrolyte sports beverage and water. J Int Soc Sports Nutr 2024; 21:2296888. [PMID: 38131124 PMCID: PMC10763896 DOI: 10.1080/15502783.2023.2296888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 12/13/2023] [Indexed: 12/23/2023] Open
Abstract
OBJECTIVE The purpose of this study was to examine the acute effects of a multi-ingredient, low calorie dietary supplement (MIDS, XTEND® Healthy Hydration) on 5-kilometer (5-km) time trial performance and blood electrolyte concentrations compared to a carbohydrate-electrolyte beverage (CE, GATORADE® Thirst Quencher) and distilled water (W). METHODS During visit 1 (V1), participants (10 men and 10 women, 20-35 years old, BMI ≤ 29 kg/m2, recreationally active) reported to the laboratory whereby the following tests were performed: i) height and weight measurements, ii) body composition analysis, iii) treadmill testing to measure maximal aerobic capacity, and iv) 5-km time trial familiarization. The second visit (V2) was one week after V1 in the morning (0600 - 0900) and participants arrived 12-14 h fasted (no food or drink). The first battery of assessments (V2-T1) included nude body mass, urine specific gravity (USG), a profile of mood states (POMS) questionnaire, and the completion of a visual analogue scale (VAS) questionnaire to quantify cramping. Then heart rate (HR), blood pressure (BP), total body hydration (via bioelectrical impedance spectroscopy [BIS]) were examined. Finally, a measurement of blood markers via finger stick was performed. Participants consumed a randomized beverage (16 fl. oz. of MIDS, 16 fl. oz. of W, or 16 fl. oz. of CE) within 3 min followed by a 45-min rest. Following the rest period, a second battery (V2-T2) was performed whereby participants' USG was assessed and they completed the POMS and VAS questionnaires, and HR, BP, and blood markers were measured. The participants then performed a 5-km treadmill time trial. Immediately following the 5-km time trial, participants completed a third testing battery (V2-T3) that began with blood markers, HR and BP assessments, followed by nude body weight assessment, and the POMS and VAS questionnaires. After 60 min, a fourth battery (V2-T4) was performed that included HR, BP, and blood markers. After sitting quietly for another 60 min a fifth battery assessment was performed (V2-T5) that included participants' USG, POMS and VAS questionnaires, HR, BP, blood markers, and total body hydration. Visits 3 (V3) and 4 (V4) followed the same protocol except a different randomized drink (16 oz. of CE, MIDS, or W) was consumed; all of which were separated by approximately one week. RESULTS No differences occurred between conditions for 5-km time trial completion, indirect calorimetry outcomes during 5-km time trials, USG, or nude mass measurements (p > 0.05 for all relevant statistical tests). However, blood potassium and the sodium/potassium ratio displayed significant interactions (p < 0.05), and post hoc testing indicated these values were better maintained in the MIDS versus other conditions. Post-exercise cramp prevalence was greater in the CE (p < 0.05) and trended higher with W (p = 0.083) compared to the MIDS condition. Post-exercise cramp severity was also elevated with the W and CE beverages (p < 0.05) but not the MIDS (p = 0.211). CONCLUSIONS The MIDS did not affect 5-km time trial performance but exhibited favorable effects on blood electrolyte and post-exercise self-reporting cramp outcomes compared to the CE and W drinks.
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Affiliation(s)
- Mason C. McIntosh
- Nutrabolt Applied and Molecular Sciences Laboratory, Auburn University, School of Kinesiology, Auburn, AL, USA
| | - Bradley A. Ruple
- Nutrabolt Applied and Molecular Sciences Laboratory, Auburn University, School of Kinesiology, Auburn, AL, USA
| | - Nicholas J. Kontos
- Nutrabolt Applied and Molecular Sciences Laboratory, Auburn University, School of Kinesiology, Auburn, AL, USA
| | - Madison L. Mattingly
- Nutrabolt Applied and Molecular Sciences Laboratory, Auburn University, School of Kinesiology, Auburn, AL, USA
| | | | - Michael D. Roberts
- Nutrabolt Applied and Molecular Sciences Laboratory, Auburn University, School of Kinesiology, Auburn, AL, USA
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Cyriac R, Lee K. Glutaminase inhibition as potential cancer therapeutics: current status and future applications. J Enzyme Inhib Med Chem 2024; 39:2290911. [PMID: 38078371 DOI: 10.1080/14756366.2023.2290911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 11/29/2023] [Indexed: 12/18/2023] Open
Abstract
Alterations in normal metabolic processes are defining features of cancer. Glutamine, an abundant amino acid in the human blood, plays a critical role in regulating several biosynthetic and bioenergetic pathways that support tumour growth. Glutaminolysis is a metabolic pathway that converts glutamine into various metabolites involved in the tricarboxylic acid (TCA) cycle and generates antioxidants that are vital for tumour cell survival. As glutaminase catalyses the initial step of this metabolic pathway, it is of great significance in cancer metabolism and tumour progression. Inhibition of glutaminase and targeting of glutaminolysis have emerged as promising strategies for cancer therapy. This review explores the role of glutaminases in cancer metabolism and discusses various glutaminase inhibitors developed as potential therapies for tumour regression.
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Affiliation(s)
- Rajath Cyriac
- Bio & Drug Discovery Division, Korea Research Institute of Chemical Technology, Daejeon, South Korea
- Medicinal Chemistry & Pharmacology, Korea National University of Science and Technology, Daejeon, South Korea
| | - Kwangho Lee
- Bio & Drug Discovery Division, Korea Research Institute of Chemical Technology, Daejeon, South Korea
- Medicinal Chemistry & Pharmacology, Korea National University of Science and Technology, Daejeon, South Korea
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Li X, Yang S, Zhang J, Xiao L, Feng X, Huang H, Xing Y. Intestinal microbial community well explain larval growth than feed types. Appl Microbiol Biotechnol 2024; 108:32. [PMID: 38175237 DOI: 10.1007/s00253-023-12857-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 09/25/2023] [Accepted: 10/24/2023] [Indexed: 01/05/2024]
Abstract
Black soldier fly larvae (BSFL) are considered a sustainable ingredient in livestock feed. However, addressing issues related to feed substrate and intestinal microbiota is essential to ensure optimal larval development. The aim of this study was to assess and elucidate the contribution of substrate nutrients and intestinal microbes to protein and fat synthesis in BSFL. The results showed that larvae that were fed high-quality feed (chicken feed) had high fat biomass, while larvae that were fed medium-quality feed (wheat bran) had high protein biomass. These results indicate that the original nutritional content of the feed cannot fully explain larval growth and nutrient utilization. However, the phenomenon could be explained by the functional metabolism of intestinal microbes. Chicken feed enhanced the fatty acid metabolism of middle intestine microorganisms in larvae within 0-7 days. This process facilitated larval fat synthesis. In contrast, wheat bran stimulated the amino acid metabolism in posterior intestine microorganisms in larvae within 4-7 days, leading to better protein synthesis. The findings of this study highlight the importance of the microbial functional potential in the intestine in regulating protein and lipid synthesis in BSFL, which is also influenced by the type of feed. In conclusion, our study suggests that both feed type and intestinal microbes play a crucial role in efficiently converting organic waste into high-quality insect protein and fat. Additionally, a mixed culture of chicken feed and wheat bran was found to be effective in promoting larval biomass while reducing feed costs. KEY POINTS: • Intestinal microbes explain BSFL growth better than feed substrates. • Chicken feed promotes fatty acid synthesis in the middle intestine • Wheat bran promotes amino acid synthesis in the posterior intestine.
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Affiliation(s)
- Xiaomei Li
- School of Life Science, Guangzhou University, Guangzhou, 510006, China
| | - Shan Yang
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, China
| | - Jiaxue Zhang
- Haid Research Institute, Guangdong Haid Group Co. Ltd., 5 Eighth Street, Fu Ping Road, Guangzhou, 511400, China
| | - Lan Xiao
- Haid Research Institute, Guangdong Haid Group Co. Ltd., 5 Eighth Street, Fu Ping Road, Guangzhou, 511400, China
| | - Xiangchi Feng
- School of Life Science, Guangzhou University, Guangzhou, 510006, China
| | - Haobin Huang
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, China
| | - Yang Xing
- Haid Research Institute, Guangdong Haid Group Co. Ltd., 5 Eighth Street, Fu Ping Road, Guangzhou, 511400, China.
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Gui J, Azad MAK, Lin W, Meng C, Hu X, Cui Y, Lan W, He J, Kong X. Chinese herb ultrafine powder supplementation improves egg nutritional value and quality in laying hens. Vet Q 2024; 44:1-17. [PMID: 38557401 PMCID: PMC10986442 DOI: 10.1080/01652176.2024.2331530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 03/11/2024] [Indexed: 04/04/2024] Open
Abstract
This study evaluates the effects of dietary Chinese herb ultrafine powder (CHUP) supplementation in late-phase laying hens on the quality and nutritional values of eggs. A total of 576 Xinyang black-feather laying hens (300-day-old) were randomly allocated into eight groups for a 120-day feeding trial. Each group contained eight replicates with nine hens per replicate. The experimental groups included the control (basal diet) and different levels of CHUP groups (details in 'Materials and methods'). The results showed that the eggshell strength was increased (p < 0.05) in the L, LF, L-LF, L-T, and LF-T groups on day 60 of the trial. In addition, the plasma estradiol level in the L-LF, LF-T, and L-LF-T groups and unsaturated fatty acids concentrations in egg yolk of the CHUP groups (except LF-T group) were increased, whereas total cholesterol (T, L-LF, L-T, and L-LF-T groups) in egg yolk and the atherogenicity (T, L-T, and L-LF-T groups) and thrombogenicity (T, L-LF, L-T, and L-LF-T groups) indexes were decreased (p < 0.05) on day 60 of the trial compared with the control group. Moreover, bitter amino acids in egg albumen were decreased (p < 0.05) in the L-LF group on day 60 and the L-LF-T group on day 120 of the trial. Collectively, these findings indicate that dietary CHUP supplementation could improve eggshell quality and increase plasma reproductive hormone, fatty acid and amino acid composition, and nutritional values of eggs, especially L-LF and L-LF-T.
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Affiliation(s)
- Jue Gui
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutrition Physiology and Metabolic Processes, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Md. Abul Kalam Azad
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutrition Physiology and Metabolic Processes, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Wenchao Lin
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutrition Physiology and Metabolic Processes, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, Hunan, China
| | - Chengwen Meng
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutrition Physiology and Metabolic Processes, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Xin Hu
- School of Biology and Food Engineering, Fuyang Normal University, Fuyang, Anhui, China
| | - Yadong Cui
- School of Biology and Food Engineering, Fuyang Normal University, Fuyang, Anhui, China
| | - Wei Lan
- School of Biology and Food Engineering, Fuyang Normal University, Fuyang, Anhui, China
| | - Jianhua He
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, Hunan, China
| | - Xiangfeng Kong
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutrition Physiology and Metabolic Processes, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, Hunan, China
- School of Biology and Food Engineering, Fuyang Normal University, Fuyang, Anhui, China
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Wu S, Xu G, Su Y, Huang H, Xu X, Zhang Y, Tian J, Zhang W, Zhang Z, Liu B. Mining and rational design of psychrophilic catalases using metagenomics and deep learning models. Appl Microbiol Biotechnol 2024; 108:31. [PMID: 38175233 DOI: 10.1007/s00253-023-12926-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 09/21/2023] [Accepted: 09/30/2023] [Indexed: 01/05/2024]
Abstract
A complete catalase-encoding gene, designated soiCat1, was obtained from soil samples via metagenomic sequencing, assembly, and gene prediction. soiCat1 showed 73% identity to a catalase-encoding gene of Mucilaginibacter rubeus strain P1, and the amino acid sequence of soiCAT1 showed 99% similarity to the catalase of a psychrophilic bacterium, Pedobacter cryoconitis. soiCAT1 was identified as a psychrophilic enzyme due to the low optimum temperature predicted by the deep learning model Preoptem, which was subsequently validated through analysis of enzymatic properties. Experimental results showed that soiCAT1 has a very narrow range of optimum temperature, with maximal specific activity occurring at the lowest test temperature (4 °C) and decreasing with increasing reaction temperature from 4 to 50 °C. To rationally design soiCAT1 with an improved temperature range, soiCAT1 was engineered through site-directed mutagenesis based on molecular evolution data analyzed through position-specific amino acid possibility calculation. Compared with the wild type, one mutant, soiCAT1S205K, exhibited an extended range of optimum temperature ranging from 4 to 20 °C. The strategies used in this study may shed light on the mining of genes of interest and rational design of desirable proteins. KEY POINTS: • Numerous putative catalases were mined from soil samples via metagenomics. • A complete sequence encoding a psychrophilic catalase was obtained. • A mutant psychrophilic catalase with an extended range of optimum temperature was engineered through site-directed mutagenesis.
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Affiliation(s)
- Shuning Wu
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, No.12 Zhongguancun South St., Haidian District, Beijing, 100081, China
- College of Forestry, Shanxi Agricultural University, No.81 Longcheng Street, Taiyuan, 030031, Shanxi, China
| | - Guoshun Xu
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No.2 Yuanmingyuan West Road, Haidian, Beijing, 100193, China
| | - Yongping Su
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, No.12 Zhongguancun South St., Haidian District, Beijing, 100081, China
- College of Forestry, Shanxi Agricultural University, No.81 Longcheng Street, Taiyuan, 030031, Shanxi, China
| | - Huoqing Huang
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No.2 Yuanmingyuan West Road, Haidian, Beijing, 100193, China
| | - Xinxin Xu
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, No.12 Zhongguancun South St., Haidian District, Beijing, 100081, China
| | - Yuhong Zhang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, No.12 Zhongguancun South St., Haidian District, Beijing, 100081, China
| | - Jian Tian
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, No.12 Zhongguancun South St., Haidian District, Beijing, 100081, China
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No.2 Yuanmingyuan West Road, Haidian, Beijing, 100193, China
| | - Wei Zhang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, No.12 Zhongguancun South St., Haidian District, Beijing, 100081, China
| | - Zhiwei Zhang
- College of Forestry, Shanxi Agricultural University, No.81 Longcheng Street, Taiyuan, 030031, Shanxi, China.
| | - Bo Liu
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, No.12 Zhongguancun South St., Haidian District, Beijing, 100081, China.
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10
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Becchi PP, Rocchetti G, García-Pérez P, Michelini S, Pizzamiglio V, Lucini L. Untargeted metabolomics and machine learning unveil quality and authenticity interactions in grated Parmigiano Reggiano PDO cheese. Food Chem 2024; 447:138938. [PMID: 38458130 DOI: 10.1016/j.foodchem.2024.138938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 02/28/2024] [Accepted: 03/02/2024] [Indexed: 03/10/2024]
Abstract
The chemical composition of Parmigiano Reggiano (PR) hard cheese can be significantly affected by different factors across the dairy supply chain, including ripening, altimetric zone, and rind inclusion levels in grated hard cheeses. The present study proposes an untargeted metabolomics approach combined with machine learning chemometrics to evaluate the combined effect of these three critical parameters. Specifically, ripening was found to exert a pivotal role in defining the signature of PR cheeses, with amino acids and lipid derivatives that exhibited their role as key discriminant compounds. In parallel, a random forest classifier was used to predict the rind inclusion levels (> 18%) in grated cheeses and to authenticate the specific effect of altimetry dairy production, achieving a high prediction ability in both model performances (i.e., ∼60% and > 90%, respectively). Overall, these results open a novel perspective to identifying quality and authenticity markers metabolites in cheese.
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Affiliation(s)
- Pier Paolo Becchi
- Department for Sustainable Food Process, Università Cattolica del Sacro Cuore, Via Emilia Parmense 84, 29122 Piacenza, Italy
| | - Gabriele Rocchetti
- Department of Animal Science, Food and Nutrition, Università Cattolica del Sacro Cuore, Via Emilia Parmense 84, 29122 Piacenza, Italy.
| | - Pascual García-Pérez
- Department for Sustainable Food Process, Università Cattolica del Sacro Cuore, Via Emilia Parmense 84, 29122 Piacenza, Italy; Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Faculty of Food Science and Technology, Universidade de Vigo, Ourense Campus, 32004 Ourense, Spain
| | - Sara Michelini
- Parmigiano Reggiano Cheese Consortium, Via J.F. Kennedy, 18, Reggio Emilia 42124, Italy
| | - Valentina Pizzamiglio
- Parmigiano Reggiano Cheese Consortium, Via J.F. Kennedy, 18, Reggio Emilia 42124, Italy
| | - Luigi Lucini
- Department for Sustainable Food Process, Università Cattolica del Sacro Cuore, Via Emilia Parmense 84, 29122 Piacenza, Italy
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11
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Zhang H, Lv X, Su W, Chen BH, Lai YW, Xie R, Lin Q, Chen L, Cao H. Exploring the roles of excess amino acids, creatine, creatinine, and glucose in the formation of heterocyclic aromatic amines by UPLC-MS/MS. Food Chem 2024; 446:138760. [PMID: 38402760 DOI: 10.1016/j.foodchem.2024.138760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 02/13/2024] [Accepted: 02/13/2024] [Indexed: 02/27/2024]
Abstract
The prevention and control of heterocyclic aromatic amines (HAA) formation to mitigate of potential risks to humans, can be achieved by targeting their precursors. In this study, the detailed roles of individual and excess component (20 common α-amino acids, creatine, creatinine, and glucose) on HAA formation in roasted beef patties were examined using UPLC-MS/MS. The results confirmed the reported classical precursors of HAAs. Some components regulated the competitive production of Norharman and Harman. Glycine (Gly) and glucose favored Norharman formation, while cysteine (Cys) and phenylalanine (Phe) for Harman. Serine (Ser) and threonine (Thr) were identified as potential precursors for IQx-type HAAs. Interestingly, methionine (Met), Gly, Thr, Cys, alanine (Ala), and Ser were revealed as more targeted underlying precursors for 1,6-DMIP and 1,5,6-TMIP, and the formation mechanism was inferred. Furthermore, Pro, Leu, His, Ile, Lys and Asp were considered as great inhibitors for HAAs.
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Affiliation(s)
- Haolin Zhang
- Institute of Chinese Medical Sciences, University of Macau, Macao, China; College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Zhanjiang 524088, China.
| | - Xiaomei Lv
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Zhanjiang 524088, China.
| | - Weiming Su
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Zhanjiang 524088, China.
| | - Bing-Huei Chen
- Department of Food Science, Fu Jen Catholic University, New Taipei City 24205, Taiwan, China.
| | - Yu-Wen Lai
- Department of Food Science, Fu Jen Catholic University, New Taipei City 24205, Taiwan, China.
| | - Ruiwei Xie
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Zhanjiang 524088, China.
| | - Qiuyi Lin
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Zhanjiang 524088, China.
| | - Lei Chen
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Zhanjiang 524088, China.
| | - Hui Cao
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Zhanjiang 524088, China.
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12
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Zhang C, Wang X, Liu Y, Wang J, Xie J. Characteristics of meat flavoring prepared using hydrolyzed plant protein mix by three different heating processes. Food Chem 2024; 446:138853. [PMID: 38422645 DOI: 10.1016/j.foodchem.2024.138853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 02/13/2024] [Accepted: 02/24/2024] [Indexed: 03/02/2024]
Abstract
Meat flavoring was prepared using mainly enzymatic hydrolysate of plant protein mix, VB1, cysteine, and glucose by three heating processes, including A (80 °C-140 min), B (two-stage, 80 °C-30 min/120 °C-30 min), and C (120 °C-40 min). The A-, B-, and C-heated samples exhibited the strongest fatty and weakest meaty, the strongest meaty and kokumi, and the strongest roasted and bitterness characteristics, respectively. PLS-DA for free amino acids with TAVs and that for SPME/GC-MS results with GC-O and OAVs, suggested three amino acids and eight flavor compounds contributed significantly in differentiating taste or aroma attributes of the three heated samples. Molecular weight distribution and degree of amino substitution suggested 1-5 kDa peptides contributed to kokumi taste. Overall, C- and A-heating exhibited the highest rates in Maillard reaction and lipid oxidation, respectively, while those of B heating were between these two heating processes and responsible for better flavor of meat flavoring.
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Affiliation(s)
- Chenping Zhang
- Key Laboratory of Geriatric Nutrition and Health (Ministry of Education), School of Light Industry Science and Engineering, Beijing Technology and Business University (BTBU), Beijing 100048, China
| | - Xuan Wang
- Key Laboratory of Geriatric Nutrition and Health (Ministry of Education), School of Light Industry Science and Engineering, Beijing Technology and Business University (BTBU), Beijing 100048, China
| | - Yang Liu
- Key Laboratory of Geriatric Nutrition and Health (Ministry of Education), School of Light Industry Science and Engineering, Beijing Technology and Business University (BTBU), Beijing 100048, China
| | - Jianan Wang
- Key Laboratory of Geriatric Nutrition and Health (Ministry of Education), School of Light Industry Science and Engineering, Beijing Technology and Business University (BTBU), Beijing 100048, China
| | - Jianchun Xie
- Key Laboratory of Geriatric Nutrition and Health (Ministry of Education), School of Light Industry Science and Engineering, Beijing Technology and Business University (BTBU), Beijing 100048, China.
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13
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Feng L, Jia X, Yin L. Role of pectin in the delivery of β-carotene embedded in interpenetrating emulsion-filled gels made with soy protein isolate. Food Chem 2024; 446:138797. [PMID: 38442678 DOI: 10.1016/j.foodchem.2024.138797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 02/12/2024] [Accepted: 02/16/2024] [Indexed: 03/07/2024]
Abstract
This study investigated the effects of different matrices on gel properties, lipid digestibility, β-carotene bioaccessibility, released free amino acids and gel network degradation. Microstructure studies have proven that sugar beet pectin/soy protein isolate-based emulsion-filled gel (SBP/SPI-E) with interpenetrating networks was formed. SBP/SPI-E exhibited higher hardness (2.67 N, p < 0.05) and released lesser free amino acids (269.48-μmol/g SPI) than soy protein isolate-based emulsion-filled gel (SPI-E) in simulated intestinal fluid (SIF); however, both had similar free amino acids contents in simulated colonic fluid. SBP has the potential to delay gel network degradation in SIF, as evidenced by the sugar stain strips of SDS-PAGE and microstructure observation. Furthermore, SBP/SPI-E and SPI-E exhibited similar β-carotene bioaccessibility in SIF, suggesting that SBP from composite gel could not affect the aforementioned bioaccessibility. The study provides useful information for the design of functional gels in the application of fat-soluble nutrient delivery.
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Affiliation(s)
- Liping Feng
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China; Beijing Advanced Innovation Centre for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Xin Jia
- Beijing Advanced Innovation Centre for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Lijun Yin
- Beijing Advanced Innovation Centre for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China.
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14
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Lin Q, Zhang H, Lv X, Xie R, Chen BH, Lai YW, Chen L, Teng H, Cao H. A systematic study on the chemical model of polycyclic aromatic hydrocarbons formation from nutrients (glucose, amino acids, fatty acids) in food. Food Chem 2024; 446:138849. [PMID: 38460280 DOI: 10.1016/j.foodchem.2024.138849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 02/07/2024] [Accepted: 02/22/2024] [Indexed: 03/11/2024]
Abstract
Polycyclic aromatic hydrocarbons (PAHs), prominent carcinogens formed during food processing, pose health risks through long-term consumption. This study focuses on 16 priority PAHs in the European Union, investigating their formation during pyrolysis. Glucose, amino acids and fatty acids are important food nutrients. To further explore whether these nutrients in food form PAHs during heating, a single chemical model method was used to heat these nutrients respectively, and GC-MS/MS was used to identify and quantify the obtained components. Glucose is the most basic nutrient in food, so the influence of water, pH, temperature and other factors on the formation of PAHs was studied in the glucose model. At the same time, the models of amino acids and fatty acids were used to assist in improving the entire nutrient research system. According to our results, some previously reported mechanisms of PAHs formation by fatty acids heating were confirmed. In addition, glucose and amino acids could also produce many PAHs after heating, and some conclusions were improved by comparing the intermediates of PAHs from three types of nutrients.
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Affiliation(s)
- Qiuyi Lin
- College of Food Science and Technology, Guangdong Ocean university, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Zhanjiang 524088, China.
| | - Haolin Zhang
- Institute of Chinese Medical Sciences, University of Macau, Macau, China.
| | - Xiaomei Lv
- College of Food Science and Technology, Guangdong Ocean university, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Zhanjiang 524088, China.
| | - Ruiwei Xie
- College of Food Science and Technology, Guangdong Ocean university, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Zhanjiang 524088, China.
| | - Bing-Huei Chen
- Department of Food Science, Fu Jen Catholic University, New Taipei City 24205, Taiwan, China.
| | - Yu-Wen Lai
- Department of Food Science, Fu Jen Catholic University, New Taipei City 24205, Taiwan, China.
| | - Lei Chen
- College of Food Science and Technology, Guangdong Ocean university, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Zhanjiang 524088, China.
| | - Hui Teng
- College of Food Science and Technology, Guangdong Ocean university, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Zhanjiang 524088, China.
| | - Hui Cao
- College of Food Science and Technology, Guangdong Ocean university, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Zhanjiang 524088, China.
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15
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Luo X, Huang K, Yu Y, Yang Q, Yang H, Xiong S, An Y, Hu Y. Insights into the potential mechanism of liquid nitrogen spray freezing's influence on volatile compounds in surimi gels with different cross-linking degrees: Focus on oxidation, protein structure, intermolecular force and free amino acid alterations. Food Chem 2024; 444:138558. [PMID: 38335679 DOI: 10.1016/j.foodchem.2024.138558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 12/25/2023] [Accepted: 01/21/2024] [Indexed: 02/12/2024]
Abstract
This study revealed the variations in odor characteristics and underlying mechanisms of different cross-linked surimi gels under liquid nitrogen (LN) spray freezing. The results demonstrated that LN spray freezing had an essential effect on the gels' odor. The odor changes in the -80 °C LN spray freezing group were closer to the control group, while -35 °C LN spray freezing treatment had the greatest impact on the aroma quality of gels. Freezing reduced gels' texture properties, intensified lipid and protein oxidation, altered protein conformation, increased surface hydrophobicity and hydrophobic interactions. These changes affected the gels' odor characteristics, leading to a reduction in fish aroma and an increase in fishy and oil odors after freezing. These tendencies were more pronounced at -35 °C LN spray freezing with lower cross-linking degrees, and reducing the freezing temperature to -80 °C and increasing the cross-linking degree to 62.99% mitigated the extent of deterioration in gel flavor quality.
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Affiliation(s)
- Xiaoying Luo
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China; School of Chemical Sciences, The University of Auckland, Auckland 1142, New Zealand
| | - Kang Huang
- School of Chemical Sciences, The University of Auckland, Auckland 1142, New Zealand
| | - Yali Yu
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China; Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, Hubei 430070, China
| | - Qin Yang
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Huifang Yang
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Shanbai Xiong
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Yueqi An
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China.
| | - Yang Hu
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
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16
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Alonso-Riaño P, Illera AE, Benito-Román O, Melgosa R, Bermejo-López A, Beltrán S, Sanz MT. Degradation kinetics of sugars (glucose and xylose), amino acids (proline and aspartic acid) and their binary mixtures in subcritical water: Effect of Maillard reaction. Food Chem 2024; 442:138421. [PMID: 38244443 DOI: 10.1016/j.foodchem.2024.138421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 12/22/2023] [Accepted: 01/10/2024] [Indexed: 01/22/2024]
Abstract
A systematic kinetic study was conducted in subcritical water medium in the temperature range from 150 to 200 °C for pure glucose, xylose, proline and aspartic acid as well as binary mixtures of sugars + amino acids to understand the reaction kinetics and interactions among biomass components and to discern the influence of Maillard reaction (MR) on the overall reaction kinetics. The main degradation products identified for glucose and xylose were the respective dehydration products, hydroxymethyl furfural and furfural, yielding an increasing solid residue with temperature (15.9 wt% at 200 °C) with an augmented heating value. The degradation of sugars and amino acids in binary systems was faster compared to pure compounds due to MR and the production of dehydration products was delayed when considering total sugar conversion. Higher relative reactivity in MR was observed for xylose over glucose showing also higher antioxidant activity.
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Affiliation(s)
- P Alonso-Riaño
- Department of Biotechnology and Food Science, Faculty of Science, University of Burgos, Plaza Misael Bañuelos s/n, 09001 Burgos, Spain
| | - A E Illera
- Department of Biotechnology and Food Science, Faculty of Science, University of Burgos, Plaza Misael Bañuelos s/n, 09001 Burgos, Spain
| | - O Benito-Román
- Department of Biotechnology and Food Science, Faculty of Science, University of Burgos, Plaza Misael Bañuelos s/n, 09001 Burgos, Spain
| | - R Melgosa
- Department of Biotechnology and Food Science, Faculty of Science, University of Burgos, Plaza Misael Bañuelos s/n, 09001 Burgos, Spain
| | - A Bermejo-López
- Department of Chemical Engineering, Faculty of Science and Technology, University of the Vasque Country UPV/EHU, Barrio Sarriena, s/n, 48940 Leioa, Bizkaia, Spain
| | - S Beltrán
- Department of Biotechnology and Food Science, Faculty of Science, University of Burgos, Plaza Misael Bañuelos s/n, 09001 Burgos, Spain
| | - M T Sanz
- Department of Biotechnology and Food Science, Faculty of Science, University of Burgos, Plaza Misael Bañuelos s/n, 09001 Burgos, Spain.
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17
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Ma Y, Wei X, Xu J, Ji S, Yang F, Zeng A, Li Y, Cao J, Zhang J, Luo Z, Fu Q. Development of double-layer poly (amino acid) modified electrochemical sensor for sensitive and direct detection of betamethasone in cosmetics. Talanta 2024; 273:125855. [PMID: 38461643 DOI: 10.1016/j.talanta.2024.125855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 12/25/2023] [Accepted: 02/28/2024] [Indexed: 03/12/2024]
Abstract
Screening for illegal use of glucocorticoids (GCs) in cosmetics by electrochemical methods is extremely challenging due to the poor electrochemical activity of GCs. In this study, poly-L-Serine/poly-Taurine modified electrode (P(Tau)/P(L-Ser)/GCE) was prepared for sensitive and direct determination of betamethasone in cosmetics by a simple two-step in situ electropolymerization reaction. The relevant parameters of preparation and electroanalytical conditions were respectively studied, including the concentration of polymerization solution, the number of scanning circles and the scanning rate. The SEM and EDS mapping demonstrated successful preparation of P(Tau)/P(L-Ser)/GCE. The electro-catalytic properties of the obtained electrodes were investigated using cyclic voltammetry and differential pulse voltammetry methods, showing a remarkable improvement of sensitivity for the detection of betamethasone due to the synergic effect of both P(L-Ser) and P(Tau). In addition, we investigated the electrochemical reduction of betamethasone on the surface of modified electrode. It was found that the process was controlled by diffusion effect and involved the transfer of two electrons and two protons. Then the electrochemical sensor method based on P(Tau)/P(L-Ser)/GCE was established and delivered a linear response to betamethasone concentration from 0.5 to 20 μg mL-1 with a limit of detection of 32.2 ng mL-1, with excellent recoveries (98.1%-106.8%) and relative standard deviations (<4.8%). Furthermore, the established electrochemical sensor method was compared with conventional HPLC method. The results showed that both of them were comparable. Moreover, the established electrochemical sensor method was with the merits of short analysis time, environmentally friendly, low cost and easy to achieve in-site detection.
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Affiliation(s)
- Yirong Ma
- Department of Pharmaceutical Analysis, School of Pharmacy, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Xinran Wei
- Department of Pharmaceutical Analysis, School of Pharmacy, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Jiameng Xu
- Department of Pharmaceutical Analysis, School of Pharmacy, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Shuhua Ji
- Department of Pharmaceutical Analysis, School of Pharmacy, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Fan Yang
- Department of Pharmaceutical Analysis, School of Pharmacy, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Aiguo Zeng
- Department of Pharmaceutical Analysis, School of Pharmacy, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Yunzhe Li
- Department of Pharmaceutical Analysis, School of Pharmacy, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Jiliang Cao
- Department of Pharmaceutical Analysis, College of Pharmacy, Shenzhen Technology University, Shenzhen, 518118, China
| | - Jia Zhang
- Shaanxi Hanjiang Pharmaceutical Group Co., Ltd, Hanzhong, 723000, China
| | - Zhimin Luo
- Department of Pharmaceutical Analysis, School of Pharmacy, Xi'an Jiaotong University, Xi'an, 710061, China.
| | - Qiang Fu
- Department of Pharmaceutical Analysis, School of Pharmacy, Xi'an Jiaotong University, Xi'an, 710061, China; Department of Pharmaceutical Analysis, College of Pharmacy, Shenzhen Technology University, Shenzhen, 518118, China.
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18
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Tu L, Chen S, Yuan Z, Xiong Y, Luo B, Chen Y, Hou Z, Ke S, Lin N, Li C, Ye S. Amino acid-based metallo-supramolecular nanoassemblies capable of regulating cellular redox homeostasis for tumoricidal chemo-/photo-/catalytic combination therapy. J Colloid Interface Sci 2024; 663:810-824. [PMID: 38447396 DOI: 10.1016/j.jcis.2024.02.197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 02/27/2024] [Accepted: 02/27/2024] [Indexed: 03/08/2024]
Abstract
Nanozymes, as nanomaterials with natural enzyme activities, have been widely applied to deliver various therapeutic agents to synergistically combat the progression of malignant tumors. However, currently common inorganic nanozyme-based drug delivery systems still face challenges such as suboptimal biosafety, inadequate stability, and inferior tumor selectivity. Herein, a super-stable amino acid-based metallo-supramolecular nanoassembly (FPIC NPs) with peroxidase (POD)- and glutathione oxidase (GSHOx)-like activities was fabricated via Pt4+-driven coordination co-assembly of l-cysteine derivatives, the chemotherapeutic drug curcumin (Cur), and the photosensitizer indocyanine green (ICG). The superior POD- and GSHOx-like activities could not only catalyze the decomposition of endogenous hydrogen peroxide into massive hydroxyl radicals, but also deplete the overproduced glutathione (GSH) in cancer cells to weaken intracellular antioxidant defenses. Meanwhile, FPIC NPs would undergo degradation in response to GSH to specifically release Cur, causing efficient mitochondrial damage. In addition, FPIC NPs intrinsically enable fluorescence/photoacoustic imaging to visualize tumor accumulation of encapsulated ICG in real time, thereby determining an appropriate treatment time point for tumoricidal photothermal (PTT)/photodynamic therapy (PDT). In vitro and in vivo findings demonstrated the quadruple orchestration of catalytic therapy, chemotherapeutics, PTT, and PDT offers conspicuous antineoplastic effects with minimal side reactions. This work may provide novel ideas for designing supramolecular nanoassemblies with multiple enzymatic activities and therapeutic functions, allowing for wider applications of nanozymes and nanoassemblies in biomedicine.
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Affiliation(s)
- Li Tu
- Department of Biomaterials, The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province, Research Center of Biomedical Engineering of Xiamen, College of Materials, Xiamen University, Xiamen 361005, PR China
| | - Shengqiang Chen
- Department of Biomaterials, The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province, Research Center of Biomedical Engineering of Xiamen, College of Materials, Xiamen University, Xiamen 361005, PR China
| | - Zhikang Yuan
- The Key Laboratory for Innovative Drug Target Research of Fujian Province, School of Pharmaceutical Sciences, Xiamen University, Xiamen 361102, PR China
| | - Yeqi Xiong
- Department of Biomaterials, The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province, Research Center of Biomedical Engineering of Xiamen, College of Materials, Xiamen University, Xiamen 361005, PR China
| | - Bingkun Luo
- Department of Biomaterials, The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province, Research Center of Biomedical Engineering of Xiamen, College of Materials, Xiamen University, Xiamen 361005, PR China
| | - Ying Chen
- Department of Surgery, Zhongshan Hospital of Xiamen University, School of Medicine, Xiamen 361004, PR China
| | - Zhenqing Hou
- Department of Biomaterials, The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province, Research Center of Biomedical Engineering of Xiamen, College of Materials, Xiamen University, Xiamen 361005, PR China
| | - Sunkui Ke
- Department of Surgery, Zhongshan Hospital of Xiamen University, School of Medicine, Xiamen 361004, PR China
| | - Naibo Lin
- Department of Biomaterials, The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province, Research Center of Biomedical Engineering of Xiamen, College of Materials, Xiamen University, Xiamen 361005, PR China.
| | - Chao Li
- Departmentof Surgery, Haicang Hospital, Xiamen Medical College, Xiamen 361026, PR China.
| | - Shefang Ye
- Department of Biomaterials, The Higher Educational Key Laboratory for Biomedical Engineering of Fujian Province, Research Center of Biomedical Engineering of Xiamen, College of Materials, Xiamen University, Xiamen 361005, PR China.
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19
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Zhuang M, Li J, Wang A, Li G, Ke S, Wang X, Ning M, Sheng Z, Wang B, Zhou Z. Structurally manipulated antioxidant peptides derived from wheat bran: Preparation and identification. Food Chem 2024; 442:138465. [PMID: 38266414 DOI: 10.1016/j.foodchem.2024.138465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 01/07/2024] [Accepted: 01/14/2024] [Indexed: 01/26/2024]
Abstract
Bioactive peptide's development is facing two challenges in terms of its lower yield and limited understanding of structurally orientated functionality. Therefore, peptides were prepared from wheat bran via a cocktail enzyme for achieving a higher level of hydrophobic amino acids than traditional method. The obtained peptides exhibited great antioxidant activities against H2O2-induced oxidative stress in HepG2 cells. Among them, 91 bioactive peptides were selected through the virtual screening, and their N-terminal and C-terminal contained many hydrophobic amino acids. Then the peptides with capacity to interact with Keap1 were identified by in silico simulation, because Keap1 acts as a sensor of redox insults. The results revealed that peptides DLDW and DLGL demonstrated the highest binding affinities, and a bridge was formed between Asp of DLGL and Arg415 of Klech domain, contributing to interfering Keap1-Nrf2 interaction. These findings implied a potential application of wheat bran peptides as nutraceuticals and health-promoting ingredients.
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Affiliation(s)
- Min Zhuang
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Jiaqing Li
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Anqi Wang
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Gaoheng Li
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Sheng Ke
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Xuanyu Wang
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Ming Ning
- Key Laboratory for Processing and Quality Safety Control of Characteristic Agricultural Products, the Ministry of Agriculture and Rural Affairs, Shihezi University, Shihezi 832003, China
| | - Zhanwu Sheng
- Haikou Experimental Station, Chinese Academy of Tropical Agricultural Sciences, Haikou 570101, China
| | - Bing Wang
- Gulbali Institute-Agriculture Water Environment, Charles Sturt University, Wagga Wagga, NSW 2678, Australia
| | - Zhongkai Zhou
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China; Key Laboratory for Processing and Quality Safety Control of Characteristic Agricultural Products, the Ministry of Agriculture and Rural Affairs, Shihezi University, Shihezi 832003, China; Gulbali Institute-Agriculture Water Environment, Charles Sturt University, Wagga Wagga, NSW 2678, Australia.
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20
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Ludwiczak A, Składanowska-Baryza J, Cieślak A, Stanisz M, Skrzypczak E, Sell-Kubiak E, Ślósarz P, Racewicz P. Effect of prudent use of antimicrobials in the early phase of infection in pigs on the performance and meat quality of fattening pigs. Meat Sci 2024; 212:109471. [PMID: 38428151 DOI: 10.1016/j.meatsci.2024.109471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 02/12/2024] [Accepted: 02/26/2024] [Indexed: 03/03/2024]
Abstract
The presented study was a part of the ThermoEye project. The study examined the effect of prudent antibiotic treatment in response to illness on the fattening performance, slaughter traits, and meat quality of the pig fatteners. Pigs were divided into an experimental group - EXP and a control - CON. In both groups, the body temperature was monitored, and diseases were confirmed by a veterinarian. In the EXP group, metaphylaxis was used in each case of confirmed disease. The EXP fatteners had greater slaughter weight (by 4.7 kg) and meatiness (by 2.1 percentage points) compared to the CON pigs. The pH in pork was lower in EXP compared to CON pigs. The longissimus thoracis et lumborum of EXP pigs was characterised by a lower cooking loss (28.30 vs. 30.45%) and yellower colour compared to the CON group. Among the amino acids, only the content of histidine (by 5.2%; P < 0.01) and tyrosine (by 7.2%; P < 0.01) was significantly greater in the meat of the CON group compared to EXP, with no effect of sex noted. The content of SFA (by 14.6%; P < 0.05), UFA (by 15.6%; P < 0.05), MUFA (by 17.8%; P < 0.05), MCFA (by 14.1%; P < 0.05), and LCFA (by 15.6%; P < 0.05) was also greater in CON compared to EXP meat. In conclusion, automated monitoring of pig body temperature during the fattening period enables more precise, prudent treatment and effective animal health control while reducing costs due to disease losses and pharmacotherapy. It allows optimal production and affects meat quality.
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Affiliation(s)
- A Ludwiczak
- Department of Animal Breeding and Product Quality Assessment, Poznan University of Life Sciences, Poznan, Poland
| | - J Składanowska-Baryza
- Department of Animal Breeding and Product Quality Assessment, Poznan University of Life Sciences, Poznan, Poland
| | - A Cieślak
- Department of Animal Nutrition, Poznan University of Life Sciences, Poznan, Poland.
| | - M Stanisz
- Department of Animal Breeding and Product Quality Assessment, Poznan University of Life Sciences, Poznan, Poland
| | - E Skrzypczak
- Department of Animal Breeding and Product Quality Assessment, Poznan University of Life Sciences, Poznan, Poland
| | - E Sell-Kubiak
- Department of Genetics and Animal Breeding, Poznan University of Life Sciences, Poznan, Poland
| | - P Ślósarz
- Department of Animal Breeding and Product Quality Assessment, Poznan University of Life Sciences, Poznan, Poland
| | - P Racewicz
- Department of Animal Breeding and Product Quality Assessment. Laboratory of Veterinary Public Health Protection, Poznan University of Life Sciences, Poznan, Poland.
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Xu Q, Zheng L, Huang M, Zhao M. Collagen derived Gly-Pro-type DPP-IV inhibitory peptides: Structure-activity relationship, inhibition kinetics and inhibition mechanism. Food Chem 2024; 441:138370. [PMID: 38199113 DOI: 10.1016/j.foodchem.2024.138370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 12/20/2023] [Accepted: 01/04/2024] [Indexed: 01/12/2024]
Abstract
Our previous study has demonstrated that both the amino acid at N3 position and peptide length affected the DPP-IV inhibitory activity of Gly-Pro-type peptides. To further elucidate their molecular mechanism, a combined approach of QSAR modeling, enzymatic kinetics and molecular docking was used. Results showed that the QSAR models of Gly-Pro-type tripeptides and Gly-Pro-type peptides containing 3-12 residues were successfully constructed by 5z-scale descriptor with R2 of 0.830 and 0.797, respectively. The lower values of electrophilicity, polarity, and side-chain bulk of amino acid at N3 position caused higher DPP-IV inhibitory activity of Gly-Pro-type peptides. Moreover, an appropriate increase in the length of Gly-Pro-type peptides did not change their competitive inhibition mode, but decreased their inhibition constants (Ki values) and increased interactions with DPP-IV. More importantly, the interactions between the residues at C-terminal of Gly-Pro-type peptides containing 5 ∼ 6 residues with S2 extensive subsites (Ser209, Phe357, Arg358) of DPP-IV increased the interactions of Gly residue at N1 position with the S2 subsites (Glu205, Glu206, Asn710, Arg125, Tyr662) and decreased the acylation level of DPP-IV-peptide complex, and thereby increasing peptides' DPP-IV inhibitory activity.
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Affiliation(s)
- Qiongyao Xu
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; Guangdong Food Green Processing and Nutrition Regulation Technologies Research Center, Guangzhou 510650, China
| | - Lin Zheng
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; Guangdong Food Green Processing and Nutrition Regulation Technologies Research Center, Guangzhou 510650, China.
| | - Mingtao Huang
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; Chaozhou Branch of Chemistry and Chemical Engineering Guangdong Laboratory, Chaozhou, 521000, China; Guangdong Food Green Processing and Nutrition Regulation Technologies Research Center, Guangzhou 510650, China
| | - Mouming Zhao
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; Chaozhou Branch of Chemistry and Chemical Engineering Guangdong Laboratory, Chaozhou, 521000, China; Guangdong Food Green Processing and Nutrition Regulation Technologies Research Center, Guangzhou 510650, China.
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22
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Hsieh KC, Ting Y. Atmospheric cold plasma reduces Ara h 1 antigenicity in roasted peanuts by altering the protein structure and amino acid profile. Food Chem 2024; 441:138115. [PMID: 38183716 DOI: 10.1016/j.foodchem.2023.138115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 10/23/2023] [Accepted: 11/27/2023] [Indexed: 01/08/2024]
Abstract
Ara h 1 is the major allergen in peanuts. To enhance the unique flavor, peanuts are usually roasted at high temperatures. However, roasting can increase the allergenic potential, owing to glycation of allergens. Atmospheric cold plasma (ACP) is a non-thermal processing technology that generates reactive species, enabling protein structural changes. Herein, glucose was also added to the ACP-treated peanut protein before roasting. The content and antigenicity of the advanced glycation end products were measured. The antigenicity was evaluated by ELISA and in vitro digestion assays. The amino acid profile and secondary and tertiary protein structures were also assessed. The antigenicity of Ara h 1 decreased by 91 % and 76 % after 30 min of air and nitrogen plasma treatment, respectively. The glycation degree and thermal and digestive stabilities were also reduced. These results correlated with the structural changes, denaturation, and aggregation. Therefore, cold plasma may reduce the allergic effects of peanuts.
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Affiliation(s)
- Kuan-Chen Hsieh
- Institute of Food Science and Technology, National Taiwan University, No.1, Sec. 4, Roosevelt Rd, Taipei, Taiwan
| | - Yuwen Ting
- Institute of Food Science and Technology, National Taiwan University, No.1, Sec. 4, Roosevelt Rd, Taipei, Taiwan.
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23
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Luo Y, Fu S, Liu Y, Kong S, Liao Q, Lin L, Li H. Banxia Xiexin decoction modulates gut microbiota and gut microbiota metabolism to alleviate DSS-induced ulcerative colitis. J Ethnopharmacol 2024; 326:117990. [PMID: 38423412 DOI: 10.1016/j.jep.2024.117990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 02/18/2024] [Accepted: 02/26/2024] [Indexed: 03/02/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Banxia Xiexin decoction (BXD) is a classic traditional Chinese medicine prescription for treating ulcerative colitis (UC). However, its potential mechanism of action is still unclear. AIM OF THE STUDY Reveal the correlation between the beneficial impacts of BXD on UC and the composition of the gut microbiota. MATERIALS AND METHODS The major constituents of BXD were identified using the HPLC-DAD technique. An experimental model of UC was induced in male C57BL/6 mice by administering dextran sodium sulfate (DSS). A total of 48 mice were divided into different groups, including control, model, high-dose BXD treatment, medium-dose BXD treatment, low-dose BXD treatment, and a group treated with 5-amino acid salicylic acid (5-ASA). Body weight changes and disease activity index (DAI) scores were documented; colon length, colon index, spleen index, and thymus index scores were determined; myeloperoxidase (MPO) and tumor necrosis factor-α (TNF-α) activities were assessed; and histological staining with hematoxylin-eosin and alcian blue/phosphate Schiff was performed. The immunofluorescence technique was employed to examine the presence of ZO-1 and occludin in the colon tissue. 16S rRNA sequencing was employed to assess the gut microbiota's diversity and metabolomics was utilized to examine alterations in metabolites within the gut microbiota. The impact of BXD on the gut microbiota was confirmed through fecal microbiota transplantation (FMT). RESULTS BXD exhibited a positive impact on UC mice, particularly in the high-dose BXD treatment group. The BXD group experienced weight recovery, decreased DAI scores, improved colon length, and restored of spleen and thymus index scores compared to the DSS group. Additionally, BXD alleviated colon damage and the inflammatory response while restoring intestinal barrier function. FMT in BXD-treated mice also showed therapeutic effects in UC mice. At the phylum level, the relative abundance of Desulfobacterota, Deferribacterota and Actinobacteriota increased; at the genus level, g__norank__f__Muribaculaceae, Dubosiella, Akkermansia, and Lactobacillus increased, whereas Faecalibaculum, Alloprevotella, Turicibacter, and g_Paraprevotella decreased. g__norank_f__Muribaculaceae was positively correlated with body weight and colon length and negatively with colon index scores, splenic index scores, and MPO levels; Alloprevotella was positively correlated with splenic index scores, histological scores, and TNF-α levels and negatively with thymus index scores and thymus index scores. Faecalibaculum was positively correlated with colon index scores and MPO levels. Metabolic investigations revealed 58 potential indicators, primarily associated with the metabolism of amino acids, purines, and lipids. Alloprevotella, g_Paraprevotella, and Bifidobacterium were strongly associated with metabolic pathways. CONCLUSION BXD showed beneficial therapeutic effects in UC mice. The mechanism may be by promoting the balance and variety of gut microbiota, as well as regulating the metabolism of amino acids, purines, and lipids.
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Affiliation(s)
- Yuting Luo
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Sai Fu
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Yuling Liu
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Shasha Kong
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Qian Liao
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Longfei Lin
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Hui Li
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China; Institute of Traditional Chinese Medicine Health Industry, China Academy of Chinese Medical Sciences, Nanchang, 330000, China; Jiangxi Health Industry Institute of Traditional Chinese Medicine, Nanchang, 330000, China.
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24
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Mougkogiannis P, Adamatzky A. Proto-neural networks from thermal proteins. Biochem Biophys Res Commun 2024; 709:149725. [PMID: 38579617 DOI: 10.1016/j.bbrc.2024.149725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 02/25/2024] [Indexed: 04/07/2024]
Abstract
Proteinoids are synthetic polymers that have structural similarities to natural proteins, and their formation is achieved through the application of heat to amino acid combinations in a dehydrated environment. The thermal proteins, initially synthesised by Sidney Fox during the 1960s, has the ability to undergo self-assembly, resulting in the formation of microspheres that resemble cells. These microspheres have fascinating biomimetic characteristics. In recent studies, substantial advancements have been made in elucidating the electrical signalling phenomena shown by proteinoids, hence showcasing their promising prospects in the field of neuro-inspired computing. This study demonstrates the advancement of experimental prototypes that employ proteinoids in the construction of fundamental neural network structures. The article provides an overview of significant achievements in proteinoid systems, such as the demonstration of electrical excitability, emulation of synaptic functions, capabilities in pattern recognition, and adaptability of network structures. This study examines the similarities and differences between proteinoid networks and spontaneous neural computation. We examine the persistent challenges associated with deciphering the underlying mechanisms of emergent proteinoid-based intelligence. Additionally, we explore the potential for developing bio-inspired computing systems using synthetic thermal proteins in forthcoming times. The results of this study offer a theoretical foundation for the advancement of adaptive, self-assembling electronic systems that operate using artificial bio-neural principles.
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25
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Yang Y, Jiang J, Jiang Y, Ju Y, He J, Yu K, Kan G, Zhang H. Determination of amino acid metabolic diseases from dried blood spots with a rapid extraction method coupled with nanoelectrospray ionization mass spectrometry. Talanta 2024; 272:125768. [PMID: 38340394 DOI: 10.1016/j.talanta.2024.125768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 01/31/2024] [Accepted: 02/06/2024] [Indexed: 02/12/2024]
Abstract
In this work, a rapid extraction method of methanol/water (95:5 v/v) with 0.1% formic acid was developed for extraction of amino acids from dried blood spots (DBS) for inherited metabolic diseases (IMDs). The combination of this extraction procedure with nanoelectrospray ionization mass spectrometry (nESI-MS) was used for the rapid analysis of amino acids. This approach with eliminating the chromatographic separation required only 2 min for the extraction of amino acids from DBS, which simplified the configuration and improved the timeliness. Dependence of the sensitivity on the operating parameters was systematically investigated. The LOD of 91.2-262.5 nmol/L and LOQ of 304-875 nmol/L which were lower than the cut-off values were obtained for amino acids within DBS. The accuracy was determined to be 93.82%-103.07% and the precision was determined to be less than 8.30%. The effectiveness of this method was also compared with the gold standard method (e.g., LC-MS/MS). The desalination mechanism was explored with interference mainly originated from the blood. These findings indicated that the rapid extraction procedure coupled with nESI-MS is capable of screening indicators for IMDs in complex biological samples.
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Affiliation(s)
- Yali Yang
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, Heilongjiang, 150090, PR China; School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, Shandong, 264209, PR China; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, Heilongjiang, 150090, PR China
| | - Jie Jiang
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, Heilongjiang, 150090, PR China; School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, Shandong, 264209, PR China; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, Heilongjiang, 150090, PR China
| | - Yanxiao Jiang
- School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, Shandong, 264209, PR China; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, Heilongjiang, 150090, PR China
| | - Yun Ju
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, Heilongjiang, 150090, PR China; School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, Shandong, 264209, PR China; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, Heilongjiang, 150090, PR China
| | - Jing He
- School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, Shandong, 264209, PR China; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, Heilongjiang, 150090, PR China
| | - Kai Yu
- School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, Shandong, 264209, PR China; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, Heilongjiang, 150090, PR China
| | - Guangfeng Kan
- School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, Shandong, 264209, PR China; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, Heilongjiang, 150090, PR China.
| | - Hong Zhang
- School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, Shandong, 264209, PR China; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, Heilongjiang, 150090, PR China.
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Leni G, Rocchetti G, Bertuzzi T, Abate A, Scansani A, Froldi F, Prandini A. Volatile compounds, gamma-glutamyl-peptides and free amino acids as biomarkers of long-ripened protected designation of origin Coppa Piacentina. Food Chem 2024; 440:138225. [PMID: 38134826 DOI: 10.1016/j.foodchem.2023.138225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 12/14/2023] [Accepted: 12/14/2023] [Indexed: 12/24/2023]
Abstract
Coppa Piacentina is an Italian protected designation of origin (PDO) dry-cured product obtained from the muscle of pork neck and ripened for at least six months. Metabolomics- and volatilomics-based strategies, combined with a chemical characterization of free amino acids were applied to identify biomarkers of long-ripened Coppa Piacentina PDO. Long ripening induced a significantly increase of total free amino acids, mainly represented by glutamic acid, involved in the umami taste perception. Untargeted metabolomics, performed using UHPLC-HRMS, allowed to identify 32 putative gamma-glutamyl-peptides, known as main contributors to the kokumi taste. Unsupervised and supervised multivariate statistics observed a clear modification of these peptides over the ripening, with gamma-glutamyl-peptides which significantly increased in long-ripened samples. A volatilomics-based strategy, conducted with GCxGC-MS, was then performed, and 93 different compounds were identified, with aldehyde and ketones deriving from the lipid auto-oxidation which increased according to ripening.
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Affiliation(s)
- Giulia Leni
- Department for Sustainable Food Process, Università Cattolica del Sacro Cuore, Via Emilia Parmense 84, 29122 Piacenza, Italy.
| | - Gabriele Rocchetti
- Department of Animal Science, Food and Nutrition, Università Cattolica del Sacro Cuore, Via Emilia Parmense 84, 29122 Piacenza, Italy
| | - Terenzio Bertuzzi
- Department of Animal Science, Food and Nutrition, Università Cattolica del Sacro Cuore, Via Emilia Parmense 84, 29122 Piacenza, Italy
| | - Alessio Abate
- Department of Animal Science, Food and Nutrition, Università Cattolica del Sacro Cuore, Via Emilia Parmense 84, 29122 Piacenza, Italy
| | - Alessandra Scansani
- Consorzio Tutela Salumi DOP Piacentini, Via Tirotti 11, 29122 Piacenza, Italy
| | - Federico Froldi
- Department of Animal Science, Food and Nutrition, Università Cattolica del Sacro Cuore, Via Emilia Parmense 84, 29122 Piacenza, Italy
| | - Aldo Prandini
- Department of Animal Science, Food and Nutrition, Università Cattolica del Sacro Cuore, Via Emilia Parmense 84, 29122 Piacenza, Italy
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Wu S, Zhu Q, Liu F, Pei C, Hong D, Zhang Y, Lai S. Multiphase reactions of proteins in the air: Oligomerization, nitration and degradation of bovine serum albumin upon ambient exposure. Sci Total Environ 2024; 924:171617. [PMID: 38467257 DOI: 10.1016/j.scitotenv.2024.171617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 03/05/2024] [Accepted: 03/08/2024] [Indexed: 03/13/2024]
Abstract
Proteins in atmospheric aerosol can react with atmospheric pollutants such as ozone (O3) and nitrogen dioxide (NO2) in the atmosphere via the reactions of oxidation, nitration, and cross-linking etc. Currently, the reactions have been more thoroughly studied in the laboratory but rarely investigated in the ambient environment. In this study, we used bovine serum albumin (BSA) as the model protein to conduct the exposure experiment in the ambient environment in southern China, an area with increasing oxidative capacity, to investigate the reactions of proteins in the atmosphere. We observed the occurrence of oligomerization, nitration and degradation of BSA upon exposure. The mass fraction of BSA monomer decreased by 5.86 ± 1.61% after exposure and those of dimers, trimers and higher oligomers increased by 1.04 ± 0.49%, 1.37 ± 0.74% and 3.40 ± 1.06%, respectively. Simultaneously, the nitration degrees of monomers, dimers, trimers and higher oligomers increased by 0.42 ± 0.15%, 0.53 ± 0.15%, 0.55 ± 0.28% and 2.15 ± 1.01%, respectively. The results show that oligomerization was significantly affected by O3 and temperature and nitration was jointly affected by O3, temperature and relative humidity, indicating the important role of atmospheric oxidants in the atmospheric reactions of protein. Atmospheric degradation of BSA was observed with the release of free amino acids (FAAs) such as glycine, alanine, serine and methionine. Glycine was the dominant FAA with a molar yield ranging from ∼8% to 33% for BSA. The estimated stoichiometric coefficient (α) of glycine is 10-7-10-6 for the degradation of BSA upon O3. Our observation suggests the occurrence of protein reactions in the oxidative ambient environment, leading to the production of nitrated products, oligomers and low molecular weight products such as peptides and FAAs. This study may deepen the current understanding of the atmospheric reaction mechanisms and reveal the influence of environmental factors in the atmosphere.
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Affiliation(s)
- Shiyi Wu
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Qiaoze Zhu
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Fobang Liu
- Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an, Shanxi 710049, China
| | - Chenglei Pei
- Guangzhou Sub-branch of Guangdong Ecological and Environmental Monitoring Center, Guangzhou 510030, China
| | - Dachi Hong
- Guangzhou Sub-branch of Guangdong Ecological and Environmental Monitoring Center, Guangzhou 510030, China
| | - Yingyi Zhang
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, School of Environment and Energy, South China University of Technology, Guangzhou 510006, China.
| | - Senchao Lai
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
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Elango R, Gaudichon C. Amino acids and protein sources as therapeutic regulators and modulators. Curr Opin Clin Nutr Metab Care 2024; 27:313-315. [PMID: 38573749 DOI: 10.1097/mco.0000000000001004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/05/2024]
Affiliation(s)
- Rajavel Elango
- Department of Pediatrics, University of British Columbia
- BC Children's Hospital Research Institute
- School of Population and Public Health, University of British Columbia, Vancouver, British Columbia, Canada
| | - Claire Gaudichon
- Université Paris-Saclay, AgroParisTech, INRAE, UMR PNCA, Paris, France
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29
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Wang Q, Zhao Z, Sun R, Shi Z, Zhang Y, Wang B, Zhang X, Ji W. Bioinformatics characteristics and expression analysis of IL-8 and IL-10 in largemouth bass (Micropterus salmoides) upon Nocardia seriolae infection. Fish & Shellfish Immunology 2024; 148:109465. [PMID: 38408547 DOI: 10.1016/j.fsi.2024.109465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 02/21/2024] [Accepted: 02/24/2024] [Indexed: 02/28/2024]
Abstract
IL-8 and IL-10 are crucial inflammatory cytokines that participate in defending host cells against infections. To demonstrate the function of the two interleukin genes in largemouth bass (Micropterus salmoides), we initially cloned and identified the cDNA sequences of il-8 and il-10 in largemouth bass, referred to as Msil-8 and Msil-10, respectively. The open reading frame (ORF) of Msil-8 was 324 bp in length, encoding 107 amino acids, while the ORF of Msil-10 consisted of 726 bp and encoded 241 amino acids. Furthermore, the functional domains of the SCY domain in MsIL-8 and the IL-10 family signature motif in MsIL-10 were highly conserved across vertebrates. Additionally, both MsIL-8 and MsIL-10 showed close relationships with M. dolomieu. Constitutive expression of Msil-8 and Msil-10 was observed in various tissues, with the highest level found in the head kidney. Subsequently, largemouth bass were infected with Nocardia seriolae via intraperitoneal injection to gain a further understanding of the function of these two genes. Bacterial loads were initially detected in the foregut, followed by the midgut, hindgut, and liver. The mRNA expression of Msil-8 was significantly down-regulated after infection, especially at 2 days post-infection (DPI), with a similar expression to Msil-10. In contrast, the expression of Msil-8 and Msil-10 was significantly upregulated in the foregut at 14 DPI. Taken together, these results reveal that the function of IL-8 and IL-10 was likely hindered by N. seriolae, which promoted bacterial proliferation and intercellular diffusion.
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Affiliation(s)
- Qin Wang
- Department of Aquatic Animal Medicines, College of Fisheries, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture and Rural Affair/Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China
| | - Zhangchun Zhao
- Department of Aquatic Animal Medicines, College of Fisheries, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture and Rural Affair/Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China
| | - Ruhan Sun
- Department of Aquatic Animal Medicines, College of Fisheries, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture and Rural Affair/Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China
| | - Zechao Shi
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China
| | - Yaqian Zhang
- Department of Aquatic Animal Medicines, College of Fisheries, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture and Rural Affair/Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China
| | - Bingchao Wang
- Department of Aquatic Animal Medicines, College of Fisheries, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture and Rural Affair/Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China
| | - Xuezhen Zhang
- Department of Aquatic Animal Medicines, College of Fisheries, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture and Rural Affair/Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China
| | - Wei Ji
- Department of Aquatic Animal Medicines, College of Fisheries, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture and Rural Affair/Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China.
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Mu L, Dong R, Wang J, Yue J, Pan L, Song C, Wei Z. The positive effect of the enzyme inducer (MnSO 4) on the formation of humic substance in rice straw composting by stimulating key microorganisms. Sci Total Environ 2024; 923:171460. [PMID: 38442764 DOI: 10.1016/j.scitotenv.2024.171460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 03/01/2024] [Accepted: 03/01/2024] [Indexed: 03/07/2024]
Abstract
This study investigated the impact of adding enzyme inducer (MnSO4) on humic substance (HS) formation during straw composting. The results demonstrated that both enzyme inducer treatment group (Mn) and functional microorganism treatment group (F) led to an increase in the content of HS compared to the treatment group without enzyme inducer and functional microorganism (CK). Interestingly, the enzyme inducer exhibited a higher promoting effect on HS (57.80 % ~ 58.58 %) than functional microbial (46.54 %). This was because enzyme inducer stimulated the growth of key microorganisms and changed the interaction relationship between microorganisms. The structural equation model suggested that the enzyme inducer promoted the utilization of amino acids by the fungus and facilitated the conversion of precursors to humic substance components. These findings provided a direction for improving the quality of composting products from agricultural straw waste. It also provided theoretical support for adding MnSO4 to compost.
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Affiliation(s)
- Linying Mu
- College of Life Science, Northeast Agricultural University, Harbin 150030, China
| | - Runshi Dong
- College of Life Science, Northeast Agricultural University, Harbin 150030, China
| | - Jiaqi Wang
- College of Life Science, Northeast Agricultural University, Harbin 150030, China
| | - Jieyu Yue
- College of Life Sciences, Tianjin Normal University, Tianjin 300387, China
| | - Lina Pan
- College of Life Sciences, Tianjin Normal University, Tianjin 300387, China
| | - Caihong Song
- School of Life Science, Liaocheng University, Liaocheng 252000, China
| | - Zimin Wei
- College of Life Science, Northeast Agricultural University, Harbin 150030, China; College of Life Sciences, Tianjin Normal University, Tianjin 300387, China.
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Downey K, Bermel W, Soong R, Lysak DH, Ronda K, Steiner K, Costa PM, Wolff WW, Decker V, Busse F, Goerling B, Haber A, Simpson MJ, Simpson AJ. Low-field, not low quality: 1D simplification, selective detection, and heteronuclear 2D experiments for improving low-field NMR spectroscopy of environmental and biological samples. Magnetic Reson in Chemistry 2024; 62:345-360. [PMID: 37811556 DOI: 10.1002/mrc.5401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 09/15/2023] [Accepted: 09/19/2023] [Indexed: 10/10/2023]
Abstract
Understanding environmental change is challenging and requires molecular-level tools to explain the physicochemical phenomena behind complex processes. Nuclear magnetic resonance (NMR) spectroscopy is a key tool that provides information on both molecular structures and interactions but is underutilized in environmental research because standard "high-field" NMR is financially and physically inaccessible for many and can be overwhelming to those outside of disciplines that routinely use NMR. "Low-field" NMR is an accessible alternative but has reduced sensitivity and increased spectral overlap, which is especially problematic for natural, heterogeneous samples. Therefore, the goal of this study is to investigate and apply innovative experiments that could minimize these challenges and improve low-field NMR analysis of environmental and biological samples. Spectral simplification (JRES, PSYCHE, singlet-only, multiple quantum filters), selective detection (GEMSTONE, DREAMTIME), and heteronuclear (reverse and CH3/CH2/CH-only HSQCs) NMR experiments are tested on samples of increasing complexity (amino acids, spruce resin, and intact water fleas) at-high field (500 MHz) and at low-field (80 MHz). A novel experiment called Doubly Selective HSQC is also introduced, wherein 1H signals are selectively detected based on the 1H and 13C chemical shifts of 1H-13C J-coupled pairs. The most promising approaches identified are the selective techniques (namely for monitoring), and the reverse and CH3-only HSQCs. Findings ultimately demonstrate that low-field NMR holds great potential for biological and environmental research. The multitude of NMR experiments available makes NMR tailorable to nearly any research need, and low-field NMR is therefore anticipated to become a valuable and widely used analytical tool moving forward.
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Affiliation(s)
- Katelyn Downey
- Environmental NMR Centre, University of Toronto Scarborough, Toronto, Ontario, Canada
| | | | - Ronald Soong
- Environmental NMR Centre, University of Toronto Scarborough, Toronto, Ontario, Canada
| | - Daniel H Lysak
- Environmental NMR Centre, University of Toronto Scarborough, Toronto, Ontario, Canada
| | - Kiera Ronda
- Environmental NMR Centre, University of Toronto Scarborough, Toronto, Ontario, Canada
| | - Katrina Steiner
- Environmental NMR Centre, University of Toronto Scarborough, Toronto, Ontario, Canada
| | - Peter M Costa
- Environmental NMR Centre, University of Toronto Scarborough, Toronto, Ontario, Canada
| | - William W Wolff
- Environmental NMR Centre, University of Toronto Scarborough, Toronto, Ontario, Canada
| | | | | | | | | | - Myrna J Simpson
- Environmental NMR Centre, University of Toronto Scarborough, Toronto, Ontario, Canada
| | - Andre J Simpson
- Environmental NMR Centre, University of Toronto Scarborough, Toronto, Ontario, Canada
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Guo R, Spyropoulos F, Michel T. FRBM Mini REVIEW: Chemogenetic approaches to probe redox dysregulation in heart failure. Free Radic Biol Med 2024; 217:173-178. [PMID: 38565399 DOI: 10.1016/j.freeradbiomed.2024.03.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 03/28/2024] [Accepted: 03/30/2024] [Indexed: 04/04/2024]
Abstract
Chemogenetics refers to experimental methods that use novel recombinant proteins that can be dynamically and uniquely regulated by specific biochemicals. Chemogenetic approaches allow the precise manipulation of cellular signaling to delineate the molecular pathways involved in both physiological and pathological disease states. Approaches utilizing yeast d-amino acid oxidase (DAAO) enable manipulation of intracellular redox metabolism through generation of hydrogen peroxide in the presence of d-amino acids and have led to the development of new and informative animal models to characterize the impact of oxidative stress in heart failure and neurodegeneration. These chemogenetic models, in which DAAO expression is regulated by different tissue-specific promoters, have led to a range of cardiac phenotypes. This review discusses chemogenetic approaches to manipulate oxidative stress in models of heart failure. These approaches provide new insights into the relationships between redox metabolism and normal and pathologic states in the heart, as well as in other diseases characterized by oxidative stress.
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Affiliation(s)
- Ruby Guo
- Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, 02115, USA
| | - Fotios Spyropoulos
- Newborn Medicine Division, Department of Pediatrics, Brigham and Women's Hospital, Harvard Medical School, Boston, 02115, USA
| | - Thomas Michel
- Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, 02115, USA.
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Tinkov AA, Korobeinikova TV, Morozova GD, Aschner M, Mak DV, Santamaria A, Rocha JBT, Sotnikova TI, Tazina SI, Skalny AV. Association between serum trace element, mineral, and amino acid levels with non-alcoholic fatty liver disease (NAFLD) in adult women. J Trace Elem Med Biol 2024; 83:127397. [PMID: 38290269 DOI: 10.1016/j.jtemb.2024.127397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 12/29/2023] [Accepted: 01/13/2024] [Indexed: 02/01/2024]
Abstract
The objective of the present study is assessment of serum trace element and amino acid levels in non-alcoholic fatty liver disease (NAFLD) patients with subsequent evaluation of its independent associations with markers of liver injury and metabolic risk. MATERIALS AND METHODS 140 women aged 20-90 years old with diagnosed NAFLD and 140 healthy women with a respective age range were enrolled in the current study. Analysis of serum and hair levels of trace elements and minerals was performed with inductively-coupled plasma mass-spectrometry (ICP-MS). Serum amino acid concentrations were evaluated by high-pressure liquid chromatography (HPLC) with UV-detection. In addition, routine biochemical parameters including liver damage markers, alanine aminotransferase (ALT) and gamma-glutamyltransferase (GGT), were assessed spectrophotometrically. RESULTS The findings demonstrated that patients with NAFLD were characterized by higher ALT, GGT, lactate dehydrogenase (LDH) and cholinesterase (CE) activity, as well as increased levels of total cholesterol, low-density lipoprotein cholesterol, triglycerides, and uric acid. NAFLD patients were characterized by reduced serum and hair Co, Se, and Zn levels, as well as hair Cu content and serum Mn concentrations in comparison to controls. Circulating Ala, Cit, Glu, Gly, Ile, Leu, Phe, and Tyr levels in NAFLD patients exceeded those in the control group. Multiple linear regression demonstrated that serum and hair trace element levels were significantly associated with circulating amino acid levels after adjustment for age, BMI, and metabolic parameters including liver damage markers. CONCLUSION It is proposed that altered trace element handling may contribute to NAFLD pathogenesis through modulation of amino acid metabolism.
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Affiliation(s)
- Alexey A Tinkov
- Center of Bioelementology and Human Ecology, and World-Class Research Center "Digital Biodesign and Personalized Healthcare", and Department of Therapy of the Institute of Postgraduate Education, IM Sechenov First Moscow State Medical University (Sechenov University), 119435 Moscow, Russia; Laboratory of Ecobiomonitoring and Quality Control, Yaroslavl State University, 150003 Yaroslavl, Russia; Department of Medical Elementology, Peoples' Friendship University of Russia (RUDN University), 117198 Moscow, Russia.
| | - Tatiana V Korobeinikova
- Center of Bioelementology and Human Ecology, and World-Class Research Center "Digital Biodesign and Personalized Healthcare", and Department of Therapy of the Institute of Postgraduate Education, IM Sechenov First Moscow State Medical University (Sechenov University), 119435 Moscow, Russia; Department of Medical Elementology, Peoples' Friendship University of Russia (RUDN University), 117198 Moscow, Russia
| | - Galina D Morozova
- Center of Bioelementology and Human Ecology, and World-Class Research Center "Digital Biodesign and Personalized Healthcare", and Department of Therapy of the Institute of Postgraduate Education, IM Sechenov First Moscow State Medical University (Sechenov University), 119435 Moscow, Russia
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, 10461 Bronx, NY, USA
| | - Daria V Mak
- Center of Bioelementology and Human Ecology, and World-Class Research Center "Digital Biodesign and Personalized Healthcare", and Department of Therapy of the Institute of Postgraduate Education, IM Sechenov First Moscow State Medical University (Sechenov University), 119435 Moscow, Russia
| | - Abel Santamaria
- Faculty of Sciencies, National Autonomous University of Mexico, 04510 Mexico City, Mexico
| | - Joao B T Rocha
- Departamento de Bioquímica e Biologia Molecular, CCNE, Universidade Federal de Santa Maria, Santa Maria 97105-900 RS, Brazil
| | - Tatiana I Sotnikova
- Center of Bioelementology and Human Ecology, and World-Class Research Center "Digital Biodesign and Personalized Healthcare", and Department of Therapy of the Institute of Postgraduate Education, IM Sechenov First Moscow State Medical University (Sechenov University), 119435 Moscow, Russia; City Clinical Hospital n. a. S.P. Botkin of the Moscow City Health Department, 125284 Moscow, Russia
| | - Serafima Ia Tazina
- Center of Bioelementology and Human Ecology, and World-Class Research Center "Digital Biodesign and Personalized Healthcare", and Department of Therapy of the Institute of Postgraduate Education, IM Sechenov First Moscow State Medical University (Sechenov University), 119435 Moscow, Russia; City Clinical Hospital n. a. S.P. Botkin of the Moscow City Health Department, 125284 Moscow, Russia
| | - Anatoly V Skalny
- Center of Bioelementology and Human Ecology, and World-Class Research Center "Digital Biodesign and Personalized Healthcare", and Department of Therapy of the Institute of Postgraduate Education, IM Sechenov First Moscow State Medical University (Sechenov University), 119435 Moscow, Russia; Laboratory of Ecobiomonitoring and Quality Control, Yaroslavl State University, 150003 Yaroslavl, Russia; Department of Medical Elementology, Peoples' Friendship University of Russia (RUDN University), 117198 Moscow, Russia
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Beuriat PA, Flaus A, Portefaix A, Szathmari A, Janier M, Hermier M, Lorthois-Ninou S, Scheiber C, Isal S, Costes N, Merida I, Lancelot S, Vasiljevic A, Leblond P, Faure Conter C, Saunier C, Kassai B, Vinchon M, Di Rocco F, Mottolese C. Preoperative 11 C-Methionine PET-MRI in Pediatric Infratentorial Tumors. Clin Nucl Med 2024; 49:381-386. [PMID: 38498623 DOI: 10.1097/rlu.0000000000005174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Abstract
PURPOSE MRI is the main imaging modality for pediatric brain tumors, but amino acid PET can provide additional information. Simultaneous PET-MRI acquisition allows to fully assess the tumor and lower the radiation exposure. Although symptomatic posterior fossa tumors are typically resected, the patient management is evolving and will benefit from an improved preoperative tumor characterization. We aimed to explore, in children with newly diagnosed posterior fossa tumor, the complementarity of the information provided by amino acid PET and MRI parameters and the correlation to histopathological results. PATIENTS AND METHODS Children with a newly diagnosed posterior fossa tumor prospectively underwent a preoperative 11 C-methionine (MET) PET-MRI. Images were assessed visually and semiquantitatively. Using correlation, minimum apparent diffusion coefficient (ADC min ) and contrast enhancement were compared with MET SUV max . The diameter of the enhancing lesions was compared with metabolic tumoral volume. Lesions were classified according to the 2021 World Health Organization (WHO) classification. RESULTS Ten children were included 4 pilocytic astrocytomas, 2 medulloblastomas, 1 ganglioglioma, 1 central nervous system embryonal tumor, and 1 schwannoma. All lesions showed visually increased MET uptake. A negative moderate correlation was found between ADC min and SUV max values ( r = -0.39). Mean SUV max was 3.8 (range, 3.3-4.2) in WHO grade 4 versus 2.5 (range, 1.7-3.0) in WHO grade 1 lesions. A positive moderate correlation was found between metabolic tumoral volume and diameter values ( r = 0.34). There was no correlation between SUV max and contrast enhancement intensity ( r = -0.15). CONCLUSIONS Preoperative 11 C-MET PET and MRI could provide complementary information to characterize pediatric infratentorial tumors.
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Affiliation(s)
| | | | | | - Alexandru Szathmari
- From the Department of Pediatric Neurosurgery, Hôpital Femme Mère Enfant, Hospices Civils de Lyon
| | | | - Marc Hermier
- Department of Neuroradiology, Hôpital Neurologique et Neurochirurgical P. Wertheimer, Hospices Civils de Lyon
| | - Sylvie Lorthois-Ninou
- Department of Pediatric Radiology, Hôpital Femme Mère Enfant, Hospices Civils de Lyon
| | | | - Sibel Isal
- Department of Nuclear Medicine, Hospices Civils de Lyon
| | | | | | | | | | - Pierre Leblond
- Institut d'Hématologie et d'Oncologie Pédiatrique (IHOPe), Centre Léon Bérard, Lyon, France
| | - Cécile Faure Conter
- Institut d'Hématologie et d'Oncologie Pédiatrique (IHOPe), Centre Léon Bérard, Lyon, France
| | - Clarisse Saunier
- EPICIME-CIC 1407 de Lyon, Inserm, Département d'Épidémiologie Clinique, Hospices Civils de Lyon
| | | | - Matthieu Vinchon
- From the Department of Pediatric Neurosurgery, Hôpital Femme Mère Enfant, Hospices Civils de Lyon
| | | | - Carmine Mottolese
- From the Department of Pediatric Neurosurgery, Hôpital Femme Mère Enfant, Hospices Civils de Lyon
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Wang Y, Wu M, Zheng H, Wu D, Yao P, Li W, Jin K, Yu X. Biomanufacture of L-homoserine lactone building block: A strategy for preparing γ-substituted L- amino acids by modular reaction. Enzyme Microb Technol 2024; 176:110411. [PMID: 38377656 DOI: 10.1016/j.enzmictec.2024.110411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 01/26/2024] [Accepted: 02/03/2024] [Indexed: 02/22/2024]
Abstract
A strain high-performance of esterase producing bacteria was screened from soil, which could selectively hydrolyze D-homoserine lactone from its racemate to achieve the resolution of L- homoserine lactone with more than 99% e.e. in 48% yield. L-homoserine lactone building block was then converted to L-α-amino-γ-bromobutyronic acid chiral blocks, which reacted with various nucleophilic reagent modules could to be applied to prepare L-γ- substituted α-amino acids such as L-selenomethionine, L-methionine, L-glufosinate and L-selenocystine. Its advantages included high selectivity of biocatalytic resolution reactions, high optical purity of products, racemic recycle of D-substrates and modular reaction, which simplified the production process of these products and highlighted the power of biological manufacturing.
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Affiliation(s)
- Yuguang Wang
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, No.1 Gongda Road, Deqing, Zhejiang 313299, China; Jiangxi XinzhongyeTea Industry Biotechnology Co., Ltd, China; Zhejiang Caihe Biotechnology Co., Ltd, China
| | - Mengjing Wu
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, No.1 Gongda Road, Deqing, Zhejiang 313299, China
| | - Huifang Zheng
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, No.1 Gongda Road, Deqing, Zhejiang 313299, China
| | - Dongmei Wu
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, No.1 Gongda Road, Deqing, Zhejiang 313299, China
| | - Panpan Yao
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, No.1 Gongda Road, Deqing, Zhejiang 313299, China
| | - Wenjing Li
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, No.1 Gongda Road, Deqing, Zhejiang 313299, China
| | - Kexin Jin
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, No.1 Gongda Road, Deqing, Zhejiang 313299, China
| | - Xinjun Yu
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, No.1 Gongda Road, Deqing, Zhejiang 313299, China.
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Van den Oever SP, Maruta CK, Schreiner M, Mayer HK. "Exotic" seeds from Southern Africa as potential Novel Foods? - Chemical composition of manketti nuts (Schinziophyton rautanenii) and ushivi beans (Guibourtia coleosperma). Food Res Int 2024; 184:114200. [PMID: 38609207 DOI: 10.1016/j.foodres.2024.114200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 03/02/2024] [Accepted: 03/07/2024] [Indexed: 04/14/2024]
Abstract
Various species of Southern African plants and their edible seeds have gained huge importance due to positive health aspects, and there is increasing interest to introduce such seeds as Novel Food on the international market. Especially the seeds of Schinziophyton rautanenii (manketti) and Guibourtia coleosperma (ushivi) could have great potential as a food and food ingredient. Hence, extensive analyses on the chemical composition of manketti nuts and ushivi beans including the analysis of total solids, protein and fat content, soluble carbohydrates, ash, total and free amino acids, biogenic amines and polyamines, fatty acid profile as well as the content of certain B-vitamins and tocopherols were performed. Results obtained showed a valuable nutritional composition, e.g., a true protein content of 22.6% with a ratio of essential amino acids to total amino acid composition of 48% in manketti nuts, while ushivi beans had a true protein content of 8.2% with a similar ratio of essential to total amino acids (45%). Lipid content was 54.1% in manketti nuts, ushivi beans had a value of 7.7%. In both, linoleic acid was the most abundant. Furthermore, ushivi beans had high amounts of vitamin B1 and B2.
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Affiliation(s)
- Sabrina P Van den Oever
- University of Natural Resources and Life Sciences, Vienna (BOKU), Department of Food Science and Technology, Institute of Food Science, Muthgasse 11/1, 1190 Vienna, Austria.
| | - Cecilia K Maruta
- Kavango Global Trading cc, P.O. Box 91164, Klein-Windhoek, Namibia
| | - Matthias Schreiner
- University of Natural Resources and Life Sciences, Vienna (BOKU), Department of Food Science and Technology, Institute of Food Science, Muthgasse 11/1, 1190 Vienna, Austria
| | - Helmut K Mayer
- University of Natural Resources and Life Sciences, Vienna (BOKU), Department of Food Science and Technology, Institute of Food Science, Muthgasse 11/1, 1190 Vienna, Austria
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Guo L, Stoffels K, Broos J, Kuipers OP. Engineering hybrid lantibiotics yields the highly stable and bacteriocidal peptide cerocin V. Microbiol Res 2024; 282:127640. [PMID: 38350171 DOI: 10.1016/j.micres.2024.127640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 02/02/2024] [Accepted: 02/06/2024] [Indexed: 02/15/2024]
Abstract
Antimicrobial peptides (AMPs) show promise as alternatives to traditional antibiotics for treating drug-resistant infections. Their adaptability and diverse sequence possibilities allow for rational design by modulating physicochemical determinants to achieve desired biological properties, transforming them into peptides for potential new therapies. Nisin, one of the best-studied AMPs, is believed to have potential to be used as a therapeutic, particularly against antibiotic-resistant bacteria. However, its instability in physiological conditions limits its use in clinical applications and pharmaceutical development. Exploration of new natural variants of nisin has uncovered diverse properties using different domains. Shuffling peptide modules can fine-tune the chemical properties of these molecules, potentially enhancing stability while maintaining or improving antimicrobial activity. In this study, hybrid AMPs were created by combining domains from three unique nisin variants, i.e. nisin A, cesin and rombocin, leading to the identification of a promising variant, named cerocin A, which harbours only 25 amino acids compared to the typical 31-35 amino acid length of nisin. Cerocin A demonstrates potent antibacterial activity against methicillin-resistant Staphylococcus aureus (MRSA), approaching that of nisin itself. Cerocin A's mode of action involves a dual mechanism through the combination of two domains, consisting of a small ring/domain (6 amino acids) from the C-terminal end of rombocin attached to the preceding peptide of cesin, changing it from a bacteriostatic to a bactericidal peptide. Further mutation studies identified a new variant, cerocin V, with significantly improved resistance against trypsin degradation, while maintaining high potency. Importantly, cerocin V showed no undesired toxic effects on human red blood cells and remained stable in human plasma. In conclusion, we demonstrate that peptide construction using domain engineering is an effective strategy for manipulating both biological and physicochemical aspects, leading to the creation of novel bioactive molecules with desired properties. These constructs are appealing candidates for further optimization and development as novel antibiotics.
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Affiliation(s)
- Longcheng Guo
- Department of Molecular Genetics, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Groningen, the Netherlands
| | - Konstantin Stoffels
- Department of Molecular Genetics, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Groningen, the Netherlands
| | - Jaap Broos
- Department of Molecular Genetics, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Groningen, the Netherlands
| | - Oscar P Kuipers
- Department of Molecular Genetics, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Groningen, the Netherlands.
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Di Stefano V, Cicero N, Melilli MG, Ganguzza E, Lucarini M, Durazzo A. Proteins and protein components for sportspeople: quality control of dietary supplements. Nat Prod Res 2024; 38:1786-1792. [PMID: 37306337 DOI: 10.1080/14786419.2023.2218974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 05/24/2023] [Indexed: 06/13/2023]
Abstract
Quality control of protein supplements intended for a large audience of consumers such as sportspeople is particularly important. A case study on quality control of dietary supplements containing protein and protein components is presented. The objective of the study was to evaluate the conformity of the quantities of amino acids, essential and branched-chain amino acids, declared on the label through measurements with chromatographic analytical tools. 16 sportspeople supplements from different European countries were tested. Analysis of concentrated whey protein highlighted some differences between the label and what was experimentally determined; in these samples some amino acids (6 amino acids out of 19) exceeded the maximum tolerance (>20%) regulated by the European Commission. To a lesser extent, analysis of the other classes revealed amino acid concentrations that exceeded the maximum analytical tolerance percentage. As regards the essential and branched amino acid supplements, it was seen that the declared quantity conforms with that determined experimentally.
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Affiliation(s)
- Vita Di Stefano
- Department of Biological, Chemical, and Pharmaceutical Science and Technology (STEBICEF), University of Palermo, Palermo, Italy
| | - Nicola Cicero
- Department of Biomedical, Dental, Morphological and Functional Imaging Sciences, University of Messina, Via Consolare Valeria, 98125 Messina
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Zhao M, Li A, Zhang K, Wang W, Zhang G, Li L. The role of the balance between energy production and ammonia detoxification mediated by key amino acids in divergent hypersaline adaptation among crassostrea oysters. Environ Res 2024; 248:118213. [PMID: 38280526 DOI: 10.1016/j.envres.2024.118213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 01/09/2024] [Accepted: 01/13/2024] [Indexed: 01/29/2024]
Abstract
Global ocean salinity is changing under rapid climate change and intensified anthropogenic activity. Increased differences in salinity threaten marine biodiversity, organismal survival, and evolution, particularly sessile invertebrates dwelling in highly fluctuating intertidal and estuarine environments. Comparing the responses of closely related species to salinity changes can provide insights into the adaptive mechanisms underlying inter- and intraspecific divergence in salinity tolerance, but are poorly understood in marine bivalves. We collected wild individuals of four Crassostrea species, in addition to two populations of the same species from their native habitats and determined the dynamics of hydrolyzed amino acids (HAAs) and transcriptional responses to hypersaline stress. In response to hypersaline stress, species/populations inhabiting natural high-salinity sea environments showed higher survival and less decline in HAAs than that of congeners inhabiting low-salinity estuaries. Thus, native environmental salinity shapes oyster tolerance. Notably, a strong negative correlation between the decline in HAAs and survival indicated that the HAAs pool could predict tolerance to hypersaline challenge. Four HAAs, including glutamine (Glu), aspartic acid (Asp), alanine (Ala) and glycine (Gly), were identified as key amino acids that contributed substantially to the emergency response to hypersaline stress. High-salinity-adapted oyster species only induced substantial decreases in Glu and Asp, whereas low-salinity-adapted congeners further incresaed Ala and Gly metabolism under hypersaline stress. The dynamics of the content and gene expression responsible for key amino acids pathways revealed the importance of maintaining the balance between energy production and ammonia detoxification in divergent hypersaline responses among oyster species/populations. High constructive or plastic expression of evolutionarily expanded gene copies in high-salinity-adapted species may contribute to their greater hypersaline tolerance. Our findings reveal the adaptive mechanism of key amino acids in salinity adaptation in marine bivalves and provide new avenues for the prediction of adaptive potential and aquaculture with high-salinity tolerant germplasms.
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Affiliation(s)
- Mingjie Zhao
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ao Li
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Biology and Biotechnology, Laoshan Laboratory, Qingdao 266237, China; Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Chinese Academy of Sciences, Wuhan 430072, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang 524000, China.
| | - Kexin Zhang
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wei Wang
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; National and Local Joint Engineering Key Laboratory of Ecological Mariculture, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
| | - Guofan Zhang
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Biology and Biotechnology, Laoshan Laboratory, Qingdao 266237, China; Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Chinese Academy of Sciences, Wuhan 430072, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang 524000, China; National and Local Joint Engineering Key Laboratory of Ecological Mariculture, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
| | - Li Li
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang 524000, China; National and Local Joint Engineering Key Laboratory of Ecological Mariculture, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Shandong Technology Innovation Center of Oyster Seed Industry, Qingdao 266000, China.
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Lin T, Huang Y, Zhong S, Shi T, Sun F, Zhong Y, Zeng Q, Zhang Q, Cui D. Passive trapping of biomolecules in hotspots with all-dielectric terahertz metamaterials. Biosens Bioelectron 2024; 251:116126. [PMID: 38367565 DOI: 10.1016/j.bios.2024.116126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 01/12/2024] [Accepted: 02/11/2024] [Indexed: 02/19/2024]
Abstract
Electromagnetic metamaterials feature the capability of squeezing photons into hotspot regions of high intensity near-field enhancement for strong light-matter interaction, underpinning the next generation of emerging biosensors. However, randomly dispersed biomolecules around the hotspots lead to weak interactions. Here, we demonstrate an all-silicon dielectric terahertz metamaterial sensor design capable of passively trapping biomoleculars into the resonant cavities confined with powerful electric field. Specifically, multiple controllable high-quality factor resonances driven by bound states in the continuum (BIC) are realized by employing longitudinal symmetry breaking. The dielectric metamaterial sensor with nearly 15.2 experimental figure-of-merit enabling qualitative and quantitative identification of different amino acids by delivering biomolecules to the hotspots for strong light-matter interactions. It is envisioned that the presented strategy will enlighten high-performance meta-sensors design from microwaves to visible frequencies, and serve as a potential platform for microfluidic sensing, biomolecular capture, and sorting devices.
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Affiliation(s)
- Tingling Lin
- Fujian Provincial Key Laboratory of Terahertz Functional Devices and Intelligent Sensing, School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, 350108, China; Institute of Precision Instrument and Intelligent Measurement & Control, Fuzhou University, Fuzhou, 350108, China
| | - Yi Huang
- Fujian Provincial Key Laboratory of Terahertz Functional Devices and Intelligent Sensing, School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, 350108, China; Institute of Precision Instrument and Intelligent Measurement & Control, Fuzhou University, Fuzhou, 350108, China.
| | - Shuncong Zhong
- Fujian Provincial Key Laboratory of Terahertz Functional Devices and Intelligent Sensing, School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, 350108, China; Institute of Precision Instrument and Intelligent Measurement & Control, Fuzhou University, Fuzhou, 350108, China.
| | - Tingting Shi
- School of Economics and Management, Minjiang University, Fuzhou, 350108, China
| | - Fuwei Sun
- Fujian Provincial Key Laboratory of Terahertz Functional Devices and Intelligent Sensing, School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, 350108, China; Institute of Precision Instrument and Intelligent Measurement & Control, Fuzhou University, Fuzhou, 350108, China
| | - Yujie Zhong
- Fujian Provincial Key Laboratory of Terahertz Functional Devices and Intelligent Sensing, School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, 350108, China; Institute of Precision Instrument and Intelligent Measurement & Control, Fuzhou University, Fuzhou, 350108, China
| | - Qiuming Zeng
- Fujian Provincial Key Laboratory of Terahertz Functional Devices and Intelligent Sensing, School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, 350108, China; Institute of Precision Instrument and Intelligent Measurement & Control, Fuzhou University, Fuzhou, 350108, China
| | - Qiukun Zhang
- Fujian Provincial Key Laboratory of Terahertz Functional Devices and Intelligent Sensing, School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, 350108, China; Institute of Precision Instrument and Intelligent Measurement & Control, Fuzhou University, Fuzhou, 350108, China
| | - Daxiang Cui
- Department of Bio-Nano Science and Engineering, Shanghai Jiaotong University, Shanghai, 200030, China
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Montserrat-Gomez M, Gogl G, Carrasco K, Betzi S, Durbesson F, Cousido-Siah A, Kostmann C, Essig DJ, Strømgaard K, Østergaard S, Morelli X, Trave G, Vincentelli R, Bailly E, Borg JP. PDZome-wide and structural characterization of the PDZ-binding motif of VANGL2. Biochim Biophys Acta Proteins Proteom 2024; 1872:140989. [PMID: 38142947 DOI: 10.1016/j.bbapap.2023.140989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 12/15/2023] [Accepted: 12/18/2023] [Indexed: 12/26/2023]
Abstract
VANGL2 is a core component of the non-canonical Wnt/Planar Cell Polarity signaling pathway that uses its highly conserved carboxy-terminal type 1 PDZ-binding motif (PBM) to bind a variety of PDZ proteins. In this study, we characterize and quantitatively assess the largest VANGL2 PDZome-binding profile documented so far, using orthogonal methods. The results of our holdup approach support VANGL2 interactions with a large panel of both long-recognized and unprecedented PDZ domains. Truncation and point mutation analyses of the VANGL2 PBM establish that, beyond the strict requirement of the P-0 / V521 and P-2 / T519 amino acids, upstream residues, including E518, Q516 and R514 at, respectively, P-3, P-5 and P-7 further contribute to the robustness of VANGL2 interactions with two distinct PDZ domains, SNX27 and SCRIBBLE-PDZ3. In agreement with these data, incremental amino-terminal deletions of the VANGL2 PBM causes its overall affinity to progressively decline. Moreover, the holdup data establish that the PDZome binding repertoire of VANGL2 starts to diverge significantly with the truncation of E518. A structural analysis of the SYNJ2BP-PDZ/VANGL2 interaction with truncated PBMs identifies a major conformational change in the binding direction of the PBM peptide after the P-2 position. Finally, we report that the PDZome binding profile of VANGL2 is dramatically rearranged upon phosphorylation of S517, T519 and S520. Our crystallographic approach illustrates how SYNJ2BP accommodates a S520-phosphorylated PBM peptide through the ideal positioning of two basic residues, K48 and R86. Altogether our data provides a comprehensive view of the VANGL2 PDZ network and how this network specifically responds to the post-translation modification of distinct PBM residues. These findings should prove useful in guiding future functional and molecular studies of the key PCP component VANGL2.
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Affiliation(s)
- Marta Montserrat-Gomez
- Aix Marseille Université, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Equipe labellisée Ligue 'Cell polarity, cell signaling and cancer', Marseille, France
| | - Gergo Gogl
- Universite de Strasbourg, INSERM, CNRS, IGBMC, Department of Integrated Structural Biology, Illkirch, France
| | - Kendall Carrasco
- Aix Marseille Université, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Equipe Integrative Structural & Chemical Biology, Marseille, France
| | - Stephane Betzi
- Aix Marseille Université, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Equipe Integrative Structural & Chemical Biology, Marseille, France
| | - Fabien Durbesson
- Aix Marseille Université, CNRS, Architecture et fonction des macromolécules biologiques (AFMB), Marseille, France
| | - Alexandra Cousido-Siah
- Universite de Strasbourg, INSERM, CNRS, IGBMC, Department of Integrated Structural Biology, Illkirch, France
| | - Camille Kostmann
- Universite de Strasbourg, INSERM, CNRS, IGBMC, Department of Integrated Structural Biology, Illkirch, France
| | - Dominic J Essig
- Center for Biopharmaceuticals, Jagtvej 162, 2100 Copenhagen, Denmark; Global Research Technologies, Novo Nordisk Research Park, 2760 Maaloev, Denmark
| | | | - Søren Østergaard
- Global Research Technologies, Novo Nordisk Research Park, 2760 Maaloev, Denmark
| | - Xavier Morelli
- Aix Marseille Université, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Equipe Integrative Structural & Chemical Biology, Marseille, France
| | - Gilles Trave
- Universite de Strasbourg, INSERM, CNRS, IGBMC, Department of Integrated Structural Biology, Illkirch, France
| | - Renaud Vincentelli
- Aix Marseille Université, CNRS, Architecture et fonction des macromolécules biologiques (AFMB), Marseille, France.
| | - Eric Bailly
- Aix Marseille Université, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Equipe labellisée Ligue 'Cell polarity, cell signaling and cancer', Marseille, France.
| | - Jean-Paul Borg
- Aix Marseille Université, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Equipe labellisée Ligue 'Cell polarity, cell signaling and cancer', Marseille, France; Institut Universitaire de France (IUF), France.
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42
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Chen M, Wang L, Lou Y, Huang Z. Effects of chronic unpredictable mild stress on gut microbiota and fecal amino acid and short-chain fatty acid pathways in mice. Behav Brain Res 2024; 464:114930. [PMID: 38432300 DOI: 10.1016/j.bbr.2024.114930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Revised: 02/16/2024] [Accepted: 02/27/2024] [Indexed: 03/05/2024]
Abstract
Depression is a serious disease that has a significant impact on social functioning. However, the exact causes of depression are still not fully understood. Therefore, it is necessary to explore new pathways leading to depression. In this study, we used 16 S rDNA to examine changes in gut microbiota and predict related pathways in depression-like mice. Additionally, we employed liquid chromatography-mass spectrometry (LC-MS) to identify changes in amino acids and gas chromatography-mass spectrometry (GC-MS) to identify changes in short-chain fatty acids (SCFAs) in fecal samples. We conducted Pearson/Spearman correlation analysis to investigate the associations between changes in amino acids/SCFAs and behavioral outcomes. The 16 S rDNA sequencing revealed significant alterations in gut microbiota at the phylum and genus levels in mice subjected to chronic unpredictable mild stress (CUMS). The relative abundances of Bacteroidetes, Proteobacteria, Bacteroides, and Alloprevotella were increased, while Firmicutes, Verrucomicrobia, Actinobacteria, Lactobacillus, Akkermansia, Lachnospirillum, and Enterobacter were decreased in the CUMS mice. We used PICRUSt software to annotate the kyoto encyclopedia of genes and genomes (KEGG) pathway function related to depression-like behavior in mice. Our analysis identified sixty functional pathways associated with the gut microbiota of mice exhibiting depression-like behavior. In the amino acid concentration analysis, we observed decreased levels of hydroxyproline and tryptophan, and increased levels of alanine in CUMS mice. In the SCFAs concentration assay, we found decreased levels of butyric acid and valeric acid, and increased levels of acetic acid in CUMS mice. Some of these changes were significantly correlated with depressive-like behaviors. Our study contributes to the understanding of the mechanism of the gut-brain axis in the occurrence and development of depression.
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Affiliation(s)
- Mengjing Chen
- The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Lingfeng Wang
- Zhejiang Chinese Medical University, Hangzhou, China
| | | | - Zhen Huang
- Zhejiang Chinese Medical University, Hangzhou, China.
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43
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Chen YQ, Yang Y, Zhen EY, Beyer TP, Li H, Wen Y, Ehsani M, Jackson N, Xie K, Jung H, Scheithauer JL, Kumari A, Birrane G, Russell AM, Balasubramaniam D, Liao Z, Siegel RW, Qian Y, Ploug M, Young SG, Konrad RJ. Carboxyl-terminal sequences in APOA5 are important for suppressing ANGPTL3/8 activity. Proc Natl Acad Sci U S A 2024; 121:e2322332121. [PMID: 38625948 DOI: 10.1073/pnas.2322332121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Accepted: 03/16/2024] [Indexed: 04/18/2024] Open
Abstract
Apolipoprotein AV (APOA5) lowers plasma triglyceride (TG) levels by binding to the angiopoietin-like protein 3/8 complex (ANGPTL3/8) and suppressing its capacity to inhibit lipoprotein lipase (LPL) catalytic activity and its ability to detach LPL from binding sites within capillaries. However, the sequences in APOA5 that are required for suppressing ANGPTL3/8 activity have never been defined. A clue to the identity of those sequences was the presence of severe hypertriglyceridemia in two patients harboring an APOA5 mutation that truncates APOA5 by 35 residues ("APOA5Δ35"). We found that wild-type (WT) human APOA5, but not APOA5Δ35, suppressed ANGPTL3/8's ability to inhibit LPL catalytic activity. To pursue that finding, we prepared a mutant mouse APOA5 protein lacking 40 C-terminal amino acids ("APOA5Δ40"). Mouse WT-APOA5, but not APOA5Δ40, suppressed ANGPTL3/8's capacity to inhibit LPL catalytic activity and sharply reduced plasma TG levels in mice. WT-APOA5, but not APOA5Δ40, increased intracapillary LPL levels and reduced plasma TG levels in Apoa5-/- mice (where TG levels are high and intravascular LPL levels are low). Also, WT-APOA5, but not APOA5Δ40, blocked the ability of ANGPTL3/8 to detach LPL from cultured cells. Finally, an antibody against a synthetic peptide corresponding to the last 26 amino acids of mouse APOA5 reduced intracapillary LPL levels and increased plasma TG levels in WT mice. We conclude that C-terminal sequences in APOA5 are crucial for suppressing ANGPTL3/8 activity in vitro and for regulating intracapillary LPL levels and plasma TG levels in vivo.
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Affiliation(s)
- Yan Q Chen
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN 462585
| | - Ye Yang
- Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA 90095
- Department of Human Genetics, David Geffen School of Medicine, University of California, Los Angeles, CA 90095
| | - Eugene Y Zhen
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN 462585
| | - Thomas P Beyer
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN 462585
| | - Hongxia Li
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN 462585
| | - Yi Wen
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN 462585
| | - Mariam Ehsani
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN 462585
| | - Nicholas Jackson
- Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA 90095
| | - Katherine Xie
- Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA 90095
| | - Hyesoo Jung
- Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA 90095
| | - Julia L Scheithauer
- Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA 90095
| | - Anni Kumari
- Finsen Laboratory, Centre for Cancer and Organ Diseases, Copenhagen University Hospital-Rigshospitalet, DK-2200 Copenhagen N, Denmark
- Finsen Laboratory, Biotech Research and Innovation Centre, University of Copenhagen, DK-2200 Copenhagen N, Denmark
| | - Gabriel Birrane
- Division of Experimental Medicine, Beth Israel Deaconess Medical Center, Boston, MA 02215
| | - Anna M Russell
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN 462585
| | | | - Zhongping Liao
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN 462585
| | - Robert W Siegel
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN 462585
| | - Yuewei Qian
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN 462585
| | - Michael Ploug
- Finsen Laboratory, Centre for Cancer and Organ Diseases, Copenhagen University Hospital-Rigshospitalet, DK-2200 Copenhagen N, Denmark
- Finsen Laboratory, Biotech Research and Innovation Centre, University of Copenhagen, DK-2200 Copenhagen N, Denmark
| | - Stephen G Young
- Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA 90095
- Department of Human Genetics, David Geffen School of Medicine, University of California, Los Angeles, CA 90095
| | - Robert J Konrad
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN 462585
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Tao H, Zhou L, Yu D, Chen Y, Luo Y, Lin T. Effects of polystyrene microplastics on the metabolic level of Pseudomonas aeruginosa. Sci Total Environ 2024; 922:171335. [PMID: 38423332 DOI: 10.1016/j.scitotenv.2024.171335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 02/22/2024] [Accepted: 02/26/2024] [Indexed: 03/02/2024]
Abstract
Given the widespread presence of Pseudomonas aeruginosa in water and its threat to human health, the metabolic changes in Pseudomonas aeruginosa when exposed to polystyrene microplastics (PS-MPs) exposure were studied, focusing on molecular level. Through non-targeted metabolomics, a total of 64 differential metabolites were screened out under positive ion mode and 44 under negative ion mode. The content of bacterial metabolites changed significantly, primarily involving lipids, nucleotides, amino acids, and organic acids. Heightened intracellular oxidative damage led to a decrease in lipid molecules and nucleotide-related metabolites. The down-regulation of amino acid metabolites, such as L-Glutamic and L-Proline, highlighted disruptions in cellular energy metabolism and the impaired ability to synthesize proteins as a defense against oxidation. The impact of PS-MPs on organic acid metabolism was evident in the inhibition of pyruvate and citrate, thereby disrupting the cells' normal participation in energy cycles. The integration of Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis revealed that PS-MPs mainly caused changes in metabolic pathways, including ABC transporters, Aminoacyl-tRNA biosynthesis, Purine metabolism, Glycerophospholipid metabolism and TCA cycle in Pseudomonas aeruginosa. Most of the differential metabolites enriched in these pathways were down-regulated, demonstrating that PS-MPs hindered the expression of metabolic pathways, ultimately impairing the ability of cells to synthesize proteins, DNA, and RNA. This disruption affected cell proliferation and information transduction, thus hampering energy circulation and inhibiting cell growth. Findings of this study supplemented the toxic effects of microplastics and the defense mechanisms of microorganisms, in turn safeguarding drinking water safety and human health.
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Affiliation(s)
- Hui Tao
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Hohai University, Nanjing 210098, PR China; College of Environment, Hohai University, Nanjing 210098, PR China.
| | - Lingqin Zhou
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Hohai University, Nanjing 210098, PR China; College of Environment, Hohai University, Nanjing 210098, PR China
| | - Duo Yu
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Hohai University, Nanjing 210098, PR China; College of Environment, Hohai University, Nanjing 210098, PR China
| | - Yiyang Chen
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Hohai University, Nanjing 210098, PR China; College of Environment, Hohai University, Nanjing 210098, PR China
| | - Yunxin Luo
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Hohai University, Nanjing 210098, PR China; College of Environment, Hohai University, Nanjing 210098, PR China
| | - Tao Lin
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Hohai University, Nanjing 210098, PR China; College of Environment, Hohai University, Nanjing 210098, PR China
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45
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Ma J, Yang M, Zhang B, Niu M. The roles of templates consisting of amino acids in the synthesis and application of gold nanoclusters. Nanoscale 2024; 16:7287-7306. [PMID: 38529817 DOI: 10.1039/d3nr06042j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
Abstract
Gold nanoclusters (AuNCs) with low toxicity, high photostability, and facile synthesis have attracted great attention. The ligand is of great significance in stabilizing AuNCs and regulating their properties. Ligands consisting of amino acids (proteins and peptides) are an ideal template for synthesizing applicative AuNCs due to their inherent bioactivity, biocompatibility, and accessibility. In this review, we summarize the correlation of the template consisting of amino acids with the properties of AuNCs by analyzing different peptide sequences. The selection of amino acids can regulate the fluorescence excitation/emission and intensity, size, cell uptake, and light absorption. By analyzing the role played by AuNCs stabilized by proteins and peptides in the application, universal rules and detailed performances of sensors, antibacterial agents, therapeutic reagents, and light absorbers are reviewed. This review can guide the template design and application of AuNCs when selecting proteins and peptides as ligands.
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Affiliation(s)
- Jinliang Ma
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, Henan 471000, China.
| | - Mengmeng Yang
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, Henan 471000, China.
| | - Bin Zhang
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, Henan 471000, China.
| | - Mingfu Niu
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, Henan 471000, China.
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Chaki S, Santra S, Dasgupta S. Fibrillation of Human Serum Albumin Differentially Affected by Asp-, Arg-, and Tyr-Capped Gold Nanoparticles. J Phys Chem B 2024; 128:3538-3553. [PMID: 38507578 DOI: 10.1021/acs.jpcb.3c06932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
Fibrillation of proteins is associated with a number of debilitating diseases, including various neurodegenerative disorders. Prevention of the protein fibrillation process is therefore of immense importance. We investigated the effect of amino acid-capped AuNPs on the prevention of the fibrillation process of human serum albumin (HSA), a model protein. Amino acid-capped AuNPs of varying sizes and agglomeration extents were synthesized under physiological conditions. The AuNPs were characterized by their characteristic surface plasmon resonance (SPR), and their interactions with HSA were investigated through emission spectroscopy in addition to circular dichroism (CD) spectral analyses. Fluorescence lifetime imaging (FLIM) as well as transmission electron microscopy (TEM) were used to observe the fibrillar network. Thermodynamic and kinetic analyses from CD and fluorescence emission spectra provided insights into the fibrillation pathway adopted by HSA in the presence of capped AuNPs. Kinetics of the fibrillation pathway followed by ThT fluorescence emission confirmed the sigmoidal nature of the process. The highest cooperativity was observed in the case of Asp-AuNPs with HSA. This was in accordance with the ΔG value obtained from the CD spectral analyses, where Arg-AuNPs with HSA showed the highest positive ΔG value and Asp-AuNPs with HSA showed the most negative ΔG value. The study provides information about the potential use of conjugate AuNPs to monitor the fibrillation process in proteins.
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Affiliation(s)
- Sreshtha Chaki
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Sujan Santra
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Swagata Dasgupta
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
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Alanizi AA, Sorlin AM, Parker MFL, López-Álvarez M, Qin H, Lee SH, Blecha J, Rosenberg OS, Engel J, Ohliger MA, Flavell RR, Wilson DM. Bioorthogonal Radiolabeling of Azide-Modified Bacteria Using [ 18F]FB-sulfo-DBCO. Bioconjug Chem 2024; 35:517-527. [PMID: 38482815 DOI: 10.1021/acs.bioconjchem.4c00024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/18/2024]
Abstract
Purpose: This study was motivated by the need for better positron emission tomography (PET)-compatible tools to image bacterial infection. Our previous efforts have targeted bacteria-specific metabolism via assimilation of carbon-11 labeled d-amino acids into the bacterial cell wall. Since the chemical determinants of this incorporation are not fully understood, we sought a high-throughput method to label d-amino acid derived structures with fluorine-18. Our strategy employed a chemical biology approach, whereby an azide (-N3) bearing d-amino acid is incorporated into peptidoglycan muropeptides, with subsequent "click" cycloaddition with an 18F-labeled strained cyclooctyne partner. Procedures: A water-soluble, 18F-labeled and dibenzocyclooctyne (DBCO)-derived radiotracer ([18F]FB-sulfo-DBCO) was synthesized. This tracer was incubated with pathogenic bacteria treated with azide-bearing d-amino acids, and incorporated 18F was determined via gamma counting. In vitro uptake in bacteria previously treated with azide-modified d-amino acids was compared to that in cultures treated with amino acid controls. The biodistribution of [18F]FB-sulfo-DBCO was studied in a cohort of healthy mice with implications for future in vivo imaging. Results: The new strain-promoted azide-alkyne cycloaddition (SPAAC) radiotracer [18F]FB-sulfo-DBCO was synthesized with high radiochemical yield and purity via N-succinimidyl 4-[18F]fluorobenzoate ([18F]SFB). Accumulation of [18F]FB-sulfo-DBCO was significantly higher in several bacteria treated with azide-modified d-amino acids than in controls; for example, we observed 7 times greater [18F]FB-sulfo-DBCO ligation in Staphylococcus aureus cultures incubated with 3-azido-d-alanine versus those incubated with d-alanine. Conclusions: The SPAAC radiotracer [18F]FB-sulfo-DBCO was validated in vitro via metabolic labeling of azide-bearing peptidoglycan muropeptides. d-Amino acid-derived PET radiotracers may be more efficiently screened via [18F]FB-sulfo-DBCO modification.
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Affiliation(s)
- Aryn A Alanizi
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, California 94158, United States
| | - Alexandre M Sorlin
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, California 94158, United States
| | - Matthew F L Parker
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, California 94158, United States
- Department of Psychiatry, Renaissance School of Medicine at Stony Brook University, Stony Brook, New York 11794, United States
| | - Marina López-Álvarez
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, California 94158, United States
| | - Hecong Qin
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, California 94158, United States
| | - Sang Hee Lee
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, California 94158, United States
| | - Joseph Blecha
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, California 94158, United States
| | - Oren S Rosenberg
- Department of Medicine, University of California, San Francisco, San Francisco, California 94158, United States
| | - Joanne Engel
- Department of Medicine, University of California, San Francisco, San Francisco, California 94158, United States
| | - Michael A Ohliger
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, California 94158, United States
- Department of Radiology, Zuckerberg San Francisco General Hospital, San Francisco, California 94110, United States
| | - Robert R Flavell
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, California 94158, United States
| | - David M Wilson
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, California 94158, United States
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Nandhagopal M, Narayanasamy M. Characterization of anthranilic acid produced by Virgibacillus salarius MML1918 and its bio-imaging application. World J Microbiol Biotechnol 2024; 40:166. [PMID: 38630358 DOI: 10.1007/s11274-024-03954-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 03/12/2024] [Indexed: 04/19/2024]
Abstract
Anthranilic acid (AA) holds significant importance in the chemical industry. It serves as a crucial building block for the amino acid tryptophan by manipulating the tryptophan biosynthesis pathway, it is possible to increase the production of anthranilic acid. In this study, we utilized metabolic engineering approaches to produce anthranilic acid from the halophilic bacterium Virgibacillus salarius MML1918. The halophilic bacteria were grown in an optimized production medium, and mass production of secondary metabolites was made in ATCC medium 1097 Proteose peptone-for halophilic bacteria and subjected to column chromatography followed by sub-column chromatography the single band for the purified compound was confirmed. Further, various spectral analyses were made for the partially purified compounds, and fluorescence microscopy for fungal cell observation was performed. The purified compound was confirmed by single crystal X-ray diffraction (XRD) analysis, and it was identified as 2-amino benzoic acid. The Fourier transform infrared Spectroscopy (FT-IR) spectrum and nuclear magnetic resonance (NMR) spectrum also confirm the structural characteristic of 2-amino benzoic acid. The UV-Vis absorption spectrum of AA shows the maximum absorption at 337.86 nm. The emission spectrum of 2-amino benzoic acid showed the maximum emission at 453 nm. The bio-imaging application of 2-amino benzoic acid was examined with fungal mycelium of Rhizoctonia solani. It was effectively bound and emitted the blue color at the concentration of 200 and 300 µg/mL. The halophilic bacterium (V. salarius), may have unique metabolic pathways and requirements compared to non-halophilic organisms, to produce AA effectively. This could have implications for industrial biotechnology, particularly in manufacturing environments where high salt concentrations are present and also it can be used as bio-imaging agent.
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Affiliation(s)
- Manivannan Nandhagopal
- Centre for Advanced Studies in Botany, University of Madras, Guindy Campus, Chennai, Tamil Nadu, 25, India
- Department of Microbiology, Saveetha Medical College & Hospital, Saveetha Institute of Medical and Technical Sciences (SIMATS), Thandalam, Chennai, Tamil Nadu, 602105, India
| | - Mathivanan Narayanasamy
- Centre for Advanced Studies in Botany, University of Madras, Guindy Campus, Chennai, Tamil Nadu, 25, India.
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Yin Q, Liu W, Jiang Y, Feng Q, Wang X, Dou H, Liu Z, He F, Fan Y, Jiao B, Jiao B. Comprehensive genomic analysis of the SARS-CoV-2 Omicron variant BA.2.76 in Jining City, China, 2022. BMC Genomics 2024; 25:378. [PMID: 38632523 DOI: 10.1186/s12864-024-10246-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Accepted: 03/21/2024] [Indexed: 04/19/2024] Open
Abstract
OBJECTIVE This study aims to analyze the molecular characteristics of the novel coronavirus (SARS-CoV-2) Omicron variant BA.2.76 in Jining City, China. METHODS Whole-genome sequencing was performed on 87 cases of SARS-CoV-2 infection. Evolutionary trees were constructed using bioinformatics software to analyze sequence homology, variant sites, N-glycosylation sites, and phosphorylation sites. RESULTS All 87 SARS-CoV-2 whole-genome sequences were classified under the evolutionary branch of the Omicron variant BA.2.76. Their similarity to the reference strain Wuhan-Hu-1 ranged from 99.72 to 99.74%. In comparison to the reference strain Wuhan-Hu-1, the 87 sequences exhibited 77-84 nucleotide differences and 27 nucleotide deletions. A total of 69 amino acid variant sites, 9 amino acid deletions, and 1 stop codon mutation were identified across 18 proteins. Among them, the spike (S) protein exhibited the highest number of variant sites, and the ORF8 protein showed a Q27 stop mutation. Multiple proteins displayed variations in glycosylation and phosphorylation sites. CONCLUSION SARS-CoV-2 continues to evolve, giving rise to new strains with enhanced transmission, stronger immune evasion capabilities, and reduced pathogenicity. The application of high-throughput sequencing technologies in the epidemic prevention and control of COVID-19 provides crucial insights into the evolutionary and variant characteristics of the virus at the genomic level, thereby holding significant implications for the prevention and control of the COVID-19 pandemic.
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Affiliation(s)
- Qiang Yin
- Department of Laboratory, Jining Center for Disease Control and Prevention, Jining, China
| | - Wei Liu
- Department of Laboratory, Jining Center for Disease Control and Prevention, Jining, China
| | - Yajuan Jiang
- Department of Laboratory, Jining Center for Disease Control and Prevention, Jining, China
| | - Qiang Feng
- Department of Laboratory, Rencheng Center for Disease Control and Prevention, Jining, China
| | - Xiaoyu Wang
- Department of Laboratory, Jining Center for Disease Control and Prevention, Jining, China
| | - Huixin Dou
- Department of Laboratory, Jining Center for Disease Control and Prevention, Jining, China
| | - Zanzan Liu
- Department of Laboratory, Jining Center for Disease Control and Prevention, Jining, China
| | - Feifei He
- Computer Information Technology, Northern Arizona University, Arizona, USA
| | - Yingying Fan
- Department of Laboratory, Jining Center for Disease Control and Prevention, Jining, China.
| | - Baihai Jiao
- Department of Medicine, School of Medicine, University of Connecticut Health Center, Farmington, CT, USA.
| | - Boyan Jiao
- Department of Laboratory, Jining Center for Disease Control and Prevention, Jining, China.
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50
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Wen S, Lin X, Luo W, Pan Y, Liao F, Wang Z, Zhan B, Feng J, Huang H. Metabolic difference between patient-derived xenograft model of pancreatic ductal adenocarcinoma and corresponding primary tumor. BMC Cancer 2024; 24:485. [PMID: 38632504 DOI: 10.1186/s12885-024-12193-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 03/27/2024] [Indexed: 04/19/2024] Open
Abstract
BACKGROUND Patients-derived xenograft (PDX) model have been widely used for tumor biological and pathological studies. However, the metabolic similarity of PDX tumor to the primary cancer (PC) is still unknown. METHODS In present study, we established PDX model by engrafting primary tumor of pancreatic ductal adenocarcinoma (PDAC), and then compared the tumor metabolomics of PC, the first generation of PDX tumor (PDXG1), and the third generation of PDX tumor (PDXG3) by using 1H NMR spectroscopy. Then, we assessed the differences in response to chemotherapy between PDXG1 and PDXG3 and corresponding metabolomic differences in drug-resistant tumor tissues. To evaluate the metabolomic similarity of PDX to PC, we also compared the metabolomic difference of cell-derived xenograft (CDX) vs. PC and PDX vs. PC. RESULTS After engraftment, PDXG1 tumor had a low level of lactate, pyruvate, citrate and multiple amino acids (AAs) compared with PC. Metabolite sets enrichment and metabolic pathway analyses implied that glycolysis metabolisms were suppressed in PDXG1 tumor, and tricarboxylic acid cycle (TCA)-associated anaplerosis pathways, such as amino acids metabolisms, were enhanced. Then, after multiple passages of PDX, the altered glycolysis and TCA-associated anaplerosis pathways were partially recovered. Although no significant difference was observed in the response of PDXG1 and PDXG3 to chemotherapy, the difference in glycolysis and amino acids metabolism between PDXG1 and PDXG3 could still be maintained. In addition, the metabolomic difference between PC and CDX models were much larger than that of PDX model and PC, indicating that PDX model still retain more metabolic characteristics of primary tumor which is more suitable for tumor-associated metabolism research. CONCLUSIONS Compared with primary tumor, PDX models have obvious difference in metabolomic level. These findings can help us design in vivo tumor metabolomics research legitimately and analyze the underlying mechanism of tumor metabolic biology thoughtfully.
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Affiliation(s)
- Shi Wen
- Department of General Surgery, Fujian Medical University Union Hospital, No. 29, Xinquan Road, Gulou District, 351001, Fuzhou, China
| | - Xianchao Lin
- Department of General Surgery, Fujian Medical University Union Hospital, No. 29, Xinquan Road, Gulou District, 351001, Fuzhou, China
| | - Wei Luo
- Department of General Surgery, Fujian Medical University Union Hospital, No. 29, Xinquan Road, Gulou District, 351001, Fuzhou, China
| | - Yu Pan
- Department of General Surgery, Fujian Medical University Union Hospital, No. 29, Xinquan Road, Gulou District, 351001, Fuzhou, China
| | - Fei Liao
- Department of General Surgery, Fujian Medical University Union Hospital, No. 29, Xinquan Road, Gulou District, 351001, Fuzhou, China
| | - Zhenzhao Wang
- Department of Electronic Science, Fujian Provincial Key Laboratory of Plasma and Magnetic Resonance, Xiamen University, No. 422, Siming South Road, Siming District, 361005, Xiamen, China
| | - Bohan Zhan
- Department of Electronic Science, Fujian Provincial Key Laboratory of Plasma and Magnetic Resonance, Xiamen University, No. 422, Siming South Road, Siming District, 361005, Xiamen, China
| | - Jianghua Feng
- Department of Electronic Science, Fujian Provincial Key Laboratory of Plasma and Magnetic Resonance, Xiamen University, No. 422, Siming South Road, Siming District, 361005, Xiamen, China.
| | - Heguang Huang
- Department of General Surgery, Fujian Medical University Union Hospital, No. 29, Xinquan Road, Gulou District, 351001, Fuzhou, China.
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