-
Frontiers in Immunology 2024Fish intestinal health under intensive aquaculture mode plays an important role in growth, development, and immune function. The present study was aimed to... (Comparative Study)
Comparative Study
Fish intestinal health under intensive aquaculture mode plays an important role in growth, development, and immune function. The present study was aimed to systematically investigate the differences of intestinal health between wild and cultured by biochemical parameters, histomorphology, and molecular biology. A total of 15 healthy per group, with an average body weight of 45 g, were sampled to analyze intestinal health parameters. Compared with wild fish, the cultured in the foregut had lower trypsin, lipase, SOD, CAT, T-AOC, and GSH-Px activities ( < 0.05) and higher amylase activity and MDA content ( < 0.05). The villus circumference and goblet cells in the cultured group were significantly lower than those in the wild group ( < 0.05). In addition, the cultured fish showed lower relative expression levels of , , , , , , , , , , , , and ( < 0.05) and higher , , , , and mRNA expressions than those of wild fish ( < 0.05). In terms of gut microbiota, the cultured group at the phylum level displayed higher percentages of and and lower percentages of , , , , and compared to the wild group ( < 0.05). At the genus level, higher abundances of and and lower abundances of and were observed in the cultured group than in the wild group ( < 0.05). To our knowledge, this is the first investigation of the intestinal health status between wild and cultured in terms of biochemistry, histology, and molecular biology levels. Overall, the present study showed significant differences in intestinal health between wild and cultured and the main manifestations that wild had higher intestinal digestion, antioxidant capacity, and intestinal barrier functions than cultured These results would provide theoretical basis for the subsequent upgrading of healthy aquaculture technology and nutrient regulation of intestinal health of cultured
Topics: Animals; Aquaculture; Intestines; Gastrointestinal Microbiome; Smegmamorpha; Intestinal Mucosa; Cytokines; Animals, Wild
PubMed: 38915412
DOI: 10.3389/fimmu.2024.1411544 -
Iranian Journal of Basic Medical... 2024Acute pancreatitis (AP) is an abrupt inflammatory condition characterized by a storm of inflammatory cytokines leading to high morbidity and mortality. The current study...
OBJECTIVES
Acute pancreatitis (AP) is an abrupt inflammatory condition characterized by a storm of inflammatory cytokines leading to high morbidity and mortality. The current study aimed to examine the efficacy of extract EGb 761 (GBE) in the treatment of L-arginine-induced AP and its associated lung injury.
MATERIALS AND METHODS
Forty rats were randomly assigned into four groups. The normal group received only saline intraperitoneally while the other groups received two intraperitoneal L-arginine injections (250 mg/100 g b.wt) separated by a 1-hour interval to provoke AP. GBE (200 and 400 mg/kg/day, PO) was administered for 2 weeks post-induction of pancreatitis. Sera and pancreatic tissues were isolated.
RESULTS
The outcome of the present study revealed that GBE ameliorated the elevated levels of serum amylase, lipase, and pancreatic inflammatory mediators viz., tumor necrosis factor-alpha (TNF-α), mitogen-activated protein kinase P38 (MAPK-P38), c-Jun N-terminal kinase 1 (JNK1), and nuclear factor-kappa B (NF-κB). Moreover, GBE restored the pancreatic gene expression of Toll-like receptor 4 (TLR4) and prostatic acid phosphatase-2 (PAP-2). Pancreatic and lung histopathological examinations confirmed the aforementioned parameters.
CONCLUSION
GBE interfered with the mechanistic pathway of L-arginine-induced acute pancreatic and its associated lung injury. Due to its anti-inflammatory properties, GBE can be used as a novel therapeutic candidate for the treatment of AP through down-regulating TLR-4/MAPK-p38/JNK and MAPK- p38/NF-κB signaling cascades.
PubMed: 38911245
DOI: 10.22038/IJBMS.2024.76162.16480 -
Plant Direct Jun 2024The coordination of assimilation pathways for all the elements that make up cellular components is a vital task for every organism. Integrating the assimilation and use...
The coordination of assimilation pathways for all the elements that make up cellular components is a vital task for every organism. Integrating the assimilation and use of carbon (C) and nitrogen (N) is of particular importance because of the high cellular abundance of these elements. Starch is one of the most important storage polymers of photosynthetic organisms, and a complex regulatory network ensures that biosynthesis and degradation of starch are coordinated with photosynthetic activity and growth. Here, we analyzed three starch metabolism enzymes of that we captured by a cyclic guanosine monophosphate (cGMP) affinity chromatography approach, namely, soluble starch synthase STA3, starch-branching enzyme SBE1, and α-amylase AMA2. While none of the recombinant enzymes was directly affected by the presence of cGMP or other nucleotides, suggesting an indirect binding to cGMP, AMA2 activity was stimulated in the presence of L-glutamine (Gln). This activating effect required the enzyme's N-terminal aspartate kinase-chorismate mutase-tyrA domain. Gln is the first N assimilation product and not only a central compound for the biosynthesis of N-containing molecules but also a recognized signaling molecule for the N status. Our observation suggests that AMA2 might be a means to coordinate N and C metabolism at the enzymatic level, increasing the liberation of C skeletons from starch when high Gln levels signal an abundance of assimilated N.
PubMed: 38911017
DOI: 10.1002/pld3.609 -
Frontiers in Pharmacology 2024Acute pancreatitis (AP) is an inflammatory condition that resolves spontaneously, but occasionally, develops into systemic inflammation, organ failure and mortality....
BACKGROUND
Acute pancreatitis (AP) is an inflammatory condition that resolves spontaneously, but occasionally, develops into systemic inflammation, organ failure and mortality. Oxidative stress and activation of inflammatory pathways represent major players in AP pathogenesis. Current management of AP relies on attenuating injuries to the pancreas and putting the inflammatory process under control. In this study, we investigated the role of sitagliptin in modulating L-arginine-induced AP in rats.
METHODS
Swiss rats were subdivided into a healthy control group, AP group (a single dose of L-arginine 250 mg/100 g, intraperitoneal), and sitagliptin + L-arginine-treated group (10 mg sitagliptin/kg body weight/day, orally). Sitagliptin treatment started 1 hour after L-arginine injection and continued for 3days. Biochemical and histopathological investigations were performed on serum and tissue samples collected from test animals.
RESULTS
L-arginine increased pancreatic meyloperoxidase and serum amylase- and lipase activities and serum levels of TNF-α, LT-α, IFN-γ, IL-1α/β, IL-6, IL-10, IL-12, and IL-15. AP animals showed elevated MDA and NO and decreased GSH and serum calcium levels. Histopathological changes were observed by H&E staining. Sitagliptin treatment significantly ameliorated these biochemical and histological changes diminishing the signs of AP.
CONCLUSION
Sitagliptin treatment was effective in ameliorating L-arginine-induced AP which can be regarded to its anti-inflammatory and antioxidant effect.
PubMed: 38910880
DOI: 10.3389/fphar.2024.1389670 -
Journal of Dairy Science Jun 2024The production of whey protein concentrates (WPCs) from camel milk whey represents an effective approach to valorize this processing by-product. These concentrates...
The production of whey protein concentrates (WPCs) from camel milk whey represents an effective approach to valorize this processing by-product. These concentrates harbor active ingredients with significant bioactive properties. Camel WPCs were spray-dried (SD) at inlet temperature of 170, 185 and 200°C, or Ultrasonicated (US) for 5, 10 and 15 min, then freeze-dried to obtain fine powder. The impact of both treatments on protein degradation was studied by sodium dodecyl sulfate-PAGE and reverse-phase ultraperformance liquid chromatography (RP-UPLC) techniques. Significantly enhanced protein degradation was observed after US treatment when compared with SD. Both SD and US treatments slightly enhanced the WPCs samples' antioxidant activities. The US exposure for 15 min exhibited highest 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) scavenging activity (12.12 mmol TE/g). Moreover, US treatment for 10 min exhibited the highest in vitro anti-diabetic properties (α-amylase and α-glucosidase inhibition), and dipeptidyl-peptidase-IV inhibitory activity among all samples. In addition, the ultrasonication for 10 min and SD at 170°C showed the lowest IC values for in vitro anti-hypercholesterolemic activities in terms of pancreatic lipase and cholesteryl esterase inhibition. Conclusively, these green techniques can be adapted in the preservation and processing of camel milk whey into active ingredients with high bioactive properties.
PubMed: 38908705
DOI: 10.3168/jds.2024-24900 -
Medicine Jun 2024This study aimed to evaluate the significance of serum salusin beta (SAL-β) levels in predicting the severity of acute pancreatitis (AP) in patients diagnosed with this... (Observational Study)
Observational Study
BACKGROUND
This study aimed to evaluate the significance of serum salusin beta (SAL-β) levels in predicting the severity of acute pancreatitis (AP) in patients diagnosed with this condition and to assess its relationship with disease and prognosis.
METHODS
Sixty-four patients between 18 and 100 years of age diagnosed with AP, were included in the study. Patients were categorized into 3 groups based on the Revised Atlanta Classification: mild, moderate, and severe AP. Eighteen healthy adults were included as the control group. Sex, age, height, weight, presence of additional diseases, laboratory results, imaging findings, levels of white blood cells, neutrophil-lymphocyte ratio, mean platelet volume, amylase, lipase, sensitive C-reactive protein, sedimentation, and serum SAL-β were measured and recorded. SAL-β levels were reevaluated on the third day of hospitalization.
RESULTS
The average age of the patients included in the study was 62.66 ± 17.67. Gallstones were present in 64.1% of the patients. The difference in the SAL-β averages on the 1st and 3rd days was statistically significant (P < .05). On the first day, the SAL-β averages of those with severe Atlanta scores were higher than those with mild and moderate Atlanta severity. Similarly, on the third day, the SAL-β averages of those with severe Atlanta scores were higher than those with mild and moderate Atlanta severity. According to receiver operating characteristic analysis using the Youden index, the cutoff value for SAL-β for severe pancreatitis was 178.8 pg/mL on the 1st day and 207.5 pg/mL on the 3rd day.
CONCLUSION
SAL-β can be used to detect and monitor severe pancreatitis. Further extensive clinical studies with larger case series are needed.
Topics: Humans; Male; Female; Middle Aged; Pancreatitis; Severity of Illness Index; Adult; Aged; Intercellular Signaling Peptides and Proteins; Aged, 80 and over; Young Adult; Biomarkers; Adolescent; Prognosis; Acute Disease; Case-Control Studies
PubMed: 38905397
DOI: 10.1097/MD.0000000000038685 -
Frontiers in Pharmacology 2024Diabetes mellitus (DM) is a common endocrine disease resulting from interactions between genetic and environmental factors. Type II DM (T2DM) accounts for approximately...
INTRODUCTION
Diabetes mellitus (DM) is a common endocrine disease resulting from interactions between genetic and environmental factors. Type II DM (T2DM) accounts for approximately 90% of all DM cases. Current medicines used in the treatment of DM have some adverse or undesirable effects on patients, necessitating the use of alternative medications.
METHODS
To overcome the low bioavailability of plant metabolites, all entities were first screened through pharmacokinetic, network pharmacology, and molecular docking predictions. Experiments were further conducted on a combination of antidiabetic phytoactive molecules (rosmarinic acid, RA; luteolin, Lut; resveratrol, RS), along with evaluation (α-amylase inhibition assay) and diabetic mice tests (oral glucose tolerance test, OGTT; oral starch tolerance test, OSTT) for maximal responses to validate starch digestion and glucose absorption while facilitating insulin sensitivity.
RESULTS
The results revealed that the combination of metabolites achieved all required criteria, including ADMET, drug likeness, and Lipinski rule. To determine the mechanisms underlying diabetic hyperglycemia and T2DM treatments, network pharmacology was used for regulatory network, PPI network, GO, and KEGG enrichment analyses. Furthermore, the combined metabolites showed adequate predictions (α-amylase, α-glucosidase, and pancreatic lipase for improving starch digestion; SGLT-2, AMPK, glucokinase, aldose reductase, acetylcholinesterase, and acetylcholine M2 receptor for mediating glucose absorption; GLP-1R, DPP-IV, and PPAR-γ for regulating insulin sensitivity), α-amylase inhibition, and efficacy (OSTT versus acarbose; OGTT versus metformin and insulin) as nutraceuticals against T2DM.
DISCUSSION
The results demonstrate that the combination of RA, Lut, and RS could be exploited for multitarget therapy as prospective antihyperglycemic phytopharmaceuticals that hinder starch digestion and glucose absorption while facilitating insulin sensitivity.
PubMed: 38903985
DOI: 10.3389/fphar.2024.1362150 -
Anais Da Academia Brasileira de Ciencias 2024In this study, the Box-Behnken experimental planning was used to optimize the extraction of polysaccharides from the cell wall of Rhizopus microspore var. oligosporus,...
In this study, the Box-Behnken experimental planning was used to optimize the extraction of polysaccharides from the cell wall of Rhizopus microspore var. oligosporus, with analysis of the quantitative effects of parameters pH, temperature and extraction time for polysaccharide yield. The optimal conditions for extraction were determined by the regression equation and evaluation of the response surface graphs, which indicated: pH 13, temperature of 120ºC and time of 60 min, with maximum yield around 18.5%. Fourier transform infrared spectroscopy analysis indicated typical polysaccharide signals. Nuclear magnetic resonance spectroscopy and monosaccharide analysis indicated a β(1,3) β(1,6) glucogalactan. The polysaccharide exhibited an average molecular weight of 120 kDa and a polymerization degree of 741. Antioxidant assays in vitro revealed the potential of polysaccharide in elimination of ABTS+ radical and hydroxyl radicals. EC50 values for free radical elimination were 7.69 and 17.8 mg/mL, for ABTS+ and hydroxyls, respectively. The polysaccharides showed potential for α-amylase inhibition with an EC50 of 1.66 mg/mL. The results suggest that β(1,3) β(1,6) glucogalactan from Rhizopus microsporus var. oligosporus can be used in biotechnological applications.
Topics: Antioxidants; Rhizopus; alpha-Amylases; Spectroscopy, Fourier Transform Infrared; Galactans; Magnetic Resonance Spectroscopy; Enzyme Inhibitors; Hydrogen-Ion Concentration
PubMed: 38896737
DOI: 10.1590/0001-3765202420230073 -
Frontiers in Microbiology 2024Carbohydrates, which make up 20 to 25% of tea beverages, are responsible for their flavor and bioactivity. Carbohydrates of pu-erh tea change during microbial...
INTRODUCTION
Carbohydrates, which make up 20 to 25% of tea beverages, are responsible for their flavor and bioactivity. Carbohydrates of pu-erh tea change during microbial fermentation and require further research. In this study, we examined the carbohydrate metabolism and expression of carbohydrate-active enzyme genes during the fermentation of tea leaves with .
METHODS
Widely targeted metabolomics analysis, high-performance anion-exchange chromatography measurements, and transcriptomics were used in this study.
RESULTS
After fermentation, the levels of soluble sugar, hemicellulose, lignin, eight monosaccharides, and seven sugar alcohols increased. Meanwhile, the relative contents of polysaccharides, D-sorbitol, D-glucose, and cellulose decreased. High expression of 40 genes encoding 16 carbohydrate enzymes was observed during fermentation (FPKM>10). These genes encode L-iditol 2-dehydrogenase, pectinesterase, polygalacturonase, α-amylase, glucoamylase, endoglucanase, β-glucosidase, β-galactosidase, α-galactosidase, α-glucosidase, and glucose-6-phosphate isomerase, among others.
DISCUSSION
These enzymes are known to break down polysaccharides and cell wall cellulose, increasing the content of monosaccharides and soluble sugars.
PubMed: 38894966
DOI: 10.3389/fmicb.2024.1408645 -
Molecules (Basel, Switzerland) May 2024Alzheimer's disease (AD) and diabetes are non-communicable diseases with global impacts. Inhibitors of acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) are...
Alzheimer's disease (AD) and diabetes are non-communicable diseases with global impacts. Inhibitors of acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) are suitable therapies for AD, while α-amylase and α-glucosidase inhibitors are employed as antidiabetic agents. Compounds were isolated from the medicinal plant and evaluated for their AChE, BChE, α-amylase, and α-glucosidase inhibitions. From H and C NMR data, the compounds were identified as 3,3'-di-O-methyl ellagic acid (), 3,3',4'-tri-O-methyl ellagic acid-4-O-β-D-xylopyranoside (), 3,3',4'-tri-O-methyl ellagic acid-4-O-β-D-glucopyranoside (), 3,3'-di-O-methyl ellagic acid-4-O-β-D-glucopyranoside (), myricetin-3-O-rhamnoside (), shikimic acid (), arjungenin (), terminolic acid (), 24-deoxysericoside (), arjunglucoside I (), and chebuloside II (). The derivatives of ellagic acid (-) showed moderate to good inhibition of cholinesterases, with the most potent being 3,3'-di-O-methyl ellagic acid, with IC values of 46.77 ± 0.90 µg/mL and 50.48 ± 1.10 µg/mL against AChE and BChE, respectively. The compounds exhibited potential inhibition of α-amylase and α-glucosidase, especially the phenolic compounds (-). Myricetin-3-O-rhamnoside had the highest α-amylase inhibition with an IC value of 65.17 ± 0.43 µg/mL compared to acarbose with an IC value of 32.25 ± 0.36 µg/mL. Two compounds, 3,3'-di-O-methyl ellagic acid (IC = 74.18 ± 0.29 µg/mL) and myricetin-3-O-rhamnoside (IC = 69.02 ± 0.65 µg/mL), were more active than the standard acarbose (IC = 87.70 ± 0.68 µg/mL) in the α-glucosidase assay. For α-glucosidase and α-amylase, the molecular docking results for reveal that these compounds may fit well into the binding sites of the target enzymes, establishing stable complexes with negative binding energies in the range of -4.03 to -10.20 kcalmol. Though not all the compounds showed binding affinities with cholinesterases, some had negative binding energies, indicating that the inhibition was thermodynamically favorable.
Topics: Molecular Docking Simulation; Cholinesterase Inhibitors; Hypoglycemic Agents; Plant Extracts; alpha-Amylases; Acetylcholinesterase; Terminalia; Humans; Butyrylcholinesterase; alpha-Glucosidases; Glycoside Hydrolase Inhibitors; Molecular Structure
PubMed: 38893333
DOI: 10.3390/molecules29112456