scholarly journals ACEI-Inhibitory Peptides Naturally Generated in Meat and Meat Products and Their Health Relevance

Nutrients ◽  
2018 ◽  
Vol 10 (9) ◽  
pp. 1259 ◽  
Author(s):  
Leticia Mora ◽  
Marta Gallego ◽  
Fidel Toldrá
Keyword(s):  
Bioactive Peptides ◽  
Health Effect ◽  
Meat Products ◽  
Intestinal Barrier ◽  
Blood Stream ◽  
The Body ◽  
Gastrointestinal Digestion ◽  
Positive Health ◽  
Inhibitory Peptides ◽  
Target Organs

Meat and meat products have been described as a very good source of angiotensin I converting enzyme (ACEI)-inhibitory peptides. The generation of bioactive peptides can occur through the action of endogenous muscular enzymes during processing, gastrointestinal digestion, or by using commercial enzymes in laboratory or industry under controlled conditions. Studies of bioavailability are necessary in order to prove the positive health effect of bioactive peptides in the body as they should resist gastrointestinal digestion, cross the intestinal barrier, and reach blood stream and target organs. However, in order to better understand their effect, interactions, and bioavailability, it is necessary to consider food matrix interactions and continue the development of quantitative methodologies in order to obtain more data that will enable advances in the field of bioactive peptides and the determination of their influence on health.

scholarly journals Potential target for mitigation of COVID-19 by food-derived bioactive peptides

2021 ◽  
Vol 16 ◽  
Author(s):  
Kenji Sato
Keyword(s):  
Bioactive Peptides ◽  
Protein Hydrolysate ◽  
Renin Angiotensin System ◽  
The Body ◽  
Food Protein ◽  
Beneficial Effects ◽  
Target Organs ◽  
Acid Metabolites ◽  
Therapeutic Activities

Oral administration of food protein hydrolysate and naturally occurring peptides exert beneficial effects beyond conventional nutritional functions by supplying amino acids for protein synthesis. These peptides are referred to as food-derived bioactive peptides. The coronavirus disease 2019 (COVID-19) is caused by sever acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. Some host and viral proteins are involved in the entry of SARS-CoV-2 into cells and their replication. Peptides with specific sequences can interact with these proteins and have potential prophylactic and therapeutic activities against COVID-19. However, it is difficult to deliver food-derived peptides to target organs without degradation by exopeptidases in the body. Alternatively, food-derived peptides and amino acid metabolites have been suggested to decrease risk factors of COVID-19 by modulating the renin-angiotensin system, the innate immune system, and the antioxidant system. This mini-review is based on in vivo responses to food-derived peptides and aims to introduce potential targets for these peptides in decreasing the risk and severity of COVID-19. 

A clinical study on the effect of Bilvapatra Ghana in the management of Madhumeha with respect to Type II Diabetes Mellitus

2018 ◽  
Vol 3 (5) ◽  
Author(s):  
Dr. Prashant P. Budhwat ◽  
Dr. Rajendra G. Wagh ◽  
Dr. Pravin A. Patil
Keyword(s):  
Free Radicals ◽  
Human Life ◽  
Blood Stream ◽  
Type Ii Diabetes Mellitus ◽  
The Body ◽  
Living Standards ◽  
Positive Health ◽  
Beneficial Effects ◽  
Herbal Medicinal ◽  
Sugar Levels

In the course of evolution of human life, man has struggled a lot to obtain the best of living standards. Among all necessities, health care is given the best attention because, only healthy individual can enjoy the benefits of beauties of the nature. Positive health doesn’t mean only physical but physiological, mental, social and spiritual wellbeing also. If the principles of Ayurveda are studied in modern scientific way, both in respect of its approach to disease and therapy, especially in relation to Madhumeha. Diabetes results when the body makes too little insulin or does not use insulin properly, allowing sugar levels to build up in the blood stream. The free radicals are one of the important etiological factors for the development of diabetes and its complications. Antioxidants capable of protecting against the damage induced by free radicals and it also have a role in reducing the effects of diabetes. There are many herbal medicinal plants like Babul, Bilva, Davana, Neem, Jambu etc. with proven antidiabetic and related beneficial effects. Bilvapatra is effective in the treatment for diabetes by reducing blood glucose level. So in present study Bilvapatra Ghana is used in the management of Madhumeha.

scholarly journals Protective Effect of Tuna Bioactive Peptide on Dextran Sulfate Sodium-Induced Colitis in Mice

Marine Drugs ◽  
2021 ◽  
Vol 19 (3) ◽  
pp. 127
Author(s):  
Xing-Wei Xiang ◽  
Xiao-Ling Zhou ◽  
Rui Wang ◽  
Cong-Han Shu ◽  
Yu-Fang Zhou ◽  
...  
Keyword(s):  
Bioactive Peptides ◽  
Dextran Sulfate ◽  
Dextran Sulfate Sodium ◽  
Intestinal Flora ◽  
Intestinal Barrier ◽  
Short Chain Fatty Acids ◽  
The Body ◽  
Inflammatory Factors ◽  
High Dose ◽  
Anti Inflammatory

Bioactive peptides isolated from marine organisms have shown to have potential anti-inflammatory effects. This study aimed to investigate the intestinal protection effect of low molecular peptides (Mw < 1 kDa) produced through enzymatic hydrolysis of tuna processing waste (tuna bioactive peptides (TBP)) on dextran sulfate sodium (DSS)-induced ulcerative colitis (UC) in BALB/c mice. Here, we randomly divided twenty-four male BALB/c mice into four groups: (i) normal (untreated), (ii) DSS-induced model colitis, (iii) low dose TBP+DSS-treated (200 mg/kg/d), and (iv) high dose TBP+DSS-treated groups (500 mg/kg/d). The results showed that TBP significantly reduced mice weight loss and improved morphological and pathological characteristics of colon tissues. In addition, it increased the activities of antioxidant enzymes (SOD and GSH-Px) and decreased inflammatory factors (LPS, IL-6, and TNF-α) expression. TBP increased the gene expression levels of some tight junction (TJ) proteins. Moreover, TBP increased the short-chain fatty acids (SCFAs) levels and the diversity and imbalance of intestinal flora. Therefore, TBP plays some protective roles in the intestinal tract by enhancing antioxidant and anti-inflammatory abilities of the body, improving the intestinal barrier and metabolic abnormalities, and adjusting intestinal flora imbalance.

scholarly journals Bioactive Peptides from Legumes and Their Bioavailability

2021 ◽  
Author(s):  
Retno Indrati
Keyword(s):  
Digestive Enzymes ◽  
Bioactive Peptides ◽  
Production Method ◽  
The Body ◽  
Charge Amino Acid ◽  
Healthy Foods ◽  
Processing Technologies ◽  
Target Organs ◽  
Hydrophobic Amino Acids ◽  
Method Factors

Bioactive peptides (BPs) isolated from legumes have functional properties as healthy foods. These functional effects depend on their stability and bioavailability in the gastrointestinal tract before reaching the target organs. Therefore, it is necessary to disclose the factors that influence it and discuss the technical processing to develop its utilisation. This chapter discusses and summarises the bioactive activities of BPs from various legumes, factors and mechanisms related to the bio-assessability, stability, bio-availability and bioactivity of BPs. Furthermore, the development of BPs bioseparation was also discussed. The results show that the nature of BPs varies greatly depending on the legume source and the production method. Factors that influenced the bio-availability of BPs include molecular weight, charge, amino acid sequence, the presence of specific residues and hydrophobic amino acids, and resistance to the action of peptidase while in the digestive tract. However, some BPs showed increased bio-accessibility and bio-availability after being hydrolyzed by digestive enzymes. Processing technologies such as encapsulation allowing BPs to enter the body and undergo release and degradation by enzymes digestion. Further studies are required to understand the increase in the bioavailability of BPs, the safety of the food components produced, and their use in producing functional foods.

The effect of diets supplemented with fish broth and fish oil on the health of weaners

2011 ◽  
Vol 14 (2) ◽  
pp. 219-225
Author(s):  
T. Bakuła ◽  
Ł. Lis ◽  
Z. Iwaniuk ◽  
Z. Ordyński
Keyword(s):  
Body Weight ◽  
Fish Oil ◽  
Health Effect ◽  
Experimental Period ◽  
The Body ◽  
Feed Conversion ◽  
Positive Health ◽  
Immunological Parameters ◽  
Acid Ratio ◽  
Experimental Group

The effect of diets supplemented with fish broth and fish oil on the health of weaners The aim of this study was to determine the effect of fish-based feed materials, as a source of readily available protein contained in fish broth and essential polyunsaturated fatty acids (PUFAs) found in fish oil, on the health of piglets and rearing results. The experiment was conducted on a commercial pig fattening farm. The study involved a total of 80 weaners with an approximate body weight of 15 kg. The experiment was carried out over a period of 40 days. Feed samples were subjected to laboratory analyses. Blood samples were collected from experimental group animals to determine serum biochemical and immunological parameters. The body weight gains of weaners, mortality rates and average feed intake per animal were calculated for the entire experimental period. The addition of fish broth and fish oil significantly improved the n3:n6 fatty acid ratio in diets. The presence of EPA and DHA in the experimental diet could have had a positive health effect on piglets, comparable with that exerted by therapeutic doses of zinc often administered to pigs of this age group. During the experiment, feed conversion ratio (FCR) gain was considerably reduced in the experimental group, with similar daily gains in the control and experimental group.

Scanning electron microscopy of freeze-fractured prescapular lymph node of caprine

1984 ◽  
Vol 42 ◽  
pp. 244-245
Author(s):  
O. Faroon ◽  
F. Al-Bagdadi ◽  
T. G. Snider ◽  
C. Titkemeyer
Keyword(s):  
Lymph Node ◽  
Lymph Nodes ◽  
Lymphatic System ◽  
Three Dimensional ◽  
Meat Products ◽  
The Body ◽  
Morphological Data ◽  
The World ◽  
Cellular Constituent ◽  
Scanning Electron

The lymphatic system is very important in the immunological activities of the body. Clinicians confirm the diagnosis of infectious diseases by palpating the involved cutaneous lymph node for changes in size, heat, and consistency. Clinical pathologists diagnose systemic diseases through biopsies of superficial lymph nodes. In many parts of the world the goat is considered as an important source of milk and meat products.The lymphatic system has been studied extensively. These studies lack precise information on the natural morphology of the lymph nodes and their vascular and cellular constituent. This is due to using improper technique for such studies. A few studies used the SEM, conducted by cutting the lymph node with a blade. The morphological data collected by this method are artificial and do not reflect the normal three dimensional surface of the examined area of the lymph node. SEM has been used to study the lymph vessels and lymph nodes of different animals. No information on the cutaneous lymph nodes of the goat has ever been collected using the scanning electron microscope.

scholarly journals Replicative Deformed Wing Virus Found in the Head of Adults from Symptomatic Commercial Bumblebee (Bombus terrestris) Colonies

2021 ◽  
Vol 8 (7) ◽  
pp. 117
Author(s):  
Giovanni Cilia ◽  
Laura Zavatta ◽  
Rosa Ranalli ◽  
Antonio Nanetti ◽  
Laura Bortolotti
Keyword(s):  
Bombus Terrestris ◽  
The Body ◽  
Rt Pcr ◽  
Deformed Wing Virus ◽  
The United Kingdom ◽  
Target Organs ◽  
Specific Organ ◽  
Virus Localization ◽  
Juvenile Stages ◽  
Asymptomatic Individuals

The deformed wing virus (DWV) is one of the most common honey bee pathogens. The virus may also be detected in other insect species, including Bombus terrestris adults from wild and managed colonies. In this study, individuals of all stages, castes, and sexes were sampled from three commercial colonies exhibiting the presence of deformed workers and analysed for the presence of DWV. Adults (deformed individuals, gynes, workers, males) had their head exscinded from the rest of the body and the two parts were analysed separately by RT-PCR. Juvenile stages (pupae, larvae, and eggs) were analysed undissected. All individuals tested positive for replicative DWV, but deformed adults showed a higher number of copies compared to asymptomatic individuals. Moreover, they showed viral infection in their heads. Sequence analysis indicated that the obtained DWV amplicons belonged to a strain isolated in the United Kingdom. Further studies are needed to characterize the specific DWV target organs in the bumblebees. The result of this study indicates the evidence of DWV infection in B. terrestris specimens that could cause wing deformities, suggesting a relationship between the deformities and the virus localization in the head. Further studies are needed to define if a specific organ could be a target in symptomatic bumblebees.

scholarly journals Proteins and Bioactive Peptides in High Protein Content Foods

Foods ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 1186
Author(s):  
Fidel Toldrá ◽  
Leticia Mora
Keyword(s):  
Enzymatic Hydrolysis ◽  
Protein Content ◽  
Human Body ◽  
Bioactive Peptides ◽  
High Protein ◽  
Microbial Fermentation ◽  
Gastrointestinal Digestion ◽  
High Protein Content ◽  
By Products

Foods and their industry by-products constitute very good sources of bioactive peptides, which can be naturally generated during processing but are also extensively produced through enzymatic hydrolysis, microbial fermentation, and even during gastrointestinal digestion in the human body [...]

Biomechanical interactions of Schistosoma mansoni eggs with vascular endothelial cells facilitate egg extravasation

2021 ◽  
Author(s):  
Yi-Ting Yeh ◽  
Danielle E. Skinner ◽  
Ernesto Criado-Hidalgo ◽  
Natalie Shee Chen ◽  
Antoni Garcia-De Herreros ◽  
...  
Keyword(s):  
Endothelial Cells ◽  
Schistosoma Mansoni ◽  
Disease Transmission ◽  
Vascular Endothelial Cells ◽  
Flexible Substrate ◽  
Blood Stream ◽  
The Body ◽  
Dependent Manner ◽  
Vascular Endothelial ◽  
Maturation State

AbstractThe eggs of the parasitic blood fluke, Schistosoma, are the main drivers of the chronic pathologies associated with schistosomiasis, a disease of poverty afflicting approximately 220 million people worldwide. Eggs laid by Schistosoma mansoni in the bloodstream of the host are encapsulated by vascular endothelial cells (VECs), the first step in the migration of the egg from the blood stream into the lumen of the gut and eventual exit from the body. The biomechanics associated with encapsulation and extravasation of the egg are poorly understood. We demonstrate that S. mansoni eggs induce VECs to form two types of membrane extensions during encapsulation; filopodia that probe eggshell surfaces and intercellular nanotubes that presumably facilitate VEC communication. Encapsulation efficiency, the number of filopodia and intercellular nanotubes, and the length of these structures depend on the egg’s vitality and, to a lesser degree, its maturation state. During encapsulation, live eggs induce VEC contractility and membranous structures formation, in a Rho/ROCK pathway-dependent manner. Using elastic hydrogels embedded with fluorescent microbeads as substrates to culture VECs, live eggs induce VECs to exert significantly greater contractile forces during encapsulation than dead eggs, which leads to 3D deformations on both the VEC monolayer and the flexible substrate underneath. These significant mechanical deformations cause the VEC monolayer tension to fluctuate with eventual rupture of VEC junctions, thus facilitating egg transit out of the blood vessel. Overall, our data on the mechanical interplay between host VECs and the schistosome egg improve our understanding of how this parasite manipulates its immediate environment to maintain disease transmission.

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