amirmasoud Esmailian; Ali Esmailizadeh; Mohammadreza Mohammadabadi; Mahdi Mansouri; Mohammadali Farahvashi; حامد Kharrati-Koopaee
Volume 24, Issue 3 , October 2022, , Pages 281-290
Abstract
The goal of nutrigenomics is to study nutrients as signals that are received by cellular receptors, which can affect the genome, gene expression and metabolite production. In this research, to investigate the effect of cannabis seed on the fold change of carnitine palmitoyl transferase-1-B (CPT1B) expression ...
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The goal of nutrigenomics is to study nutrients as signals that are received by cellular receptors, which can affect the genome, gene expression and metabolite production. In this research, to investigate the effect of cannabis seed on the fold change of carnitine palmitoyl transferase-1-B (CPT1B) expression in Baluchi sheep, 12 five-month-old male lambs were divided into two groups in a completely randomized design. The groups were fed with a control diet without cannabis seed and with a diet containing 10% cannabis seed. After the fattening period of 110 days, samples were taken from the heart, liver, testis, subcutaneous back fat and Longissimus dorsi muscle. Total RNA was extracted for Real Time PCR reaction and measurement of CPT1B gene expression change between groups. The change of CPT1B gene expression in liver tissue was significant between control and treatment groups (P<0.05). The expression of CPT1B gene was 5.74 times higher in liver of lambs treated with Cannabis seed compared with the control group. The CPT1B gene expression in heart, subcutaneous back fat, Longissimus dorsi muscle, and testis decreased by 3.1, 2.36, 2.12 and 2.47 times, respectively compared to control group. Cannabis seeds contain unsaturated fatty acids and these compounds can change the fat metabolism in the liver through the expression of genes such as CPT1B. Therefore, it can be stated that, CPT1B is one of the effective genes in fat metabolism and the addition of cannabis seeds to the diet can have a beneficial effect on the animal's production performance by increasing the activity of the liver tissue.
Essa Dirandeh; Mohammad Kazemi Fard; Tannaz Saberifar
Volume 24, Issue 3 , October 2022, , Pages 373-382
Abstract
To investigate the effect of fatty liver on insulin resistance in the liver of laying hens, an experiment using 80 laying hens of commercial line strains (w-36) after peak production (age 43 weeks) for eight weeks were performedin a completely randomized design with two treatments. The experimental treatments ...
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To investigate the effect of fatty liver on insulin resistance in the liver of laying hens, an experiment using 80 laying hens of commercial line strains (w-36) after peak production (age 43 weeks) for eight weeks were performedin a completely randomized design with two treatments. The experimental treatments included control group (no injection) and the estradiol group (injection of two mg estradiol benzoate per kg body weight). In order to induce fatty liver disease, the injection of 17-beta estradiol started from the third week of experiment (age 46), and was performed three times a week for 21 days. Blood samples were taken to evaluate the concentration of triglycerides, cholesterol and liver enzymes (aspartate transaminase (AST), alanin transaminase (ALT) and alkaline phosphatase (ALP) at the end of the experiment using 20 hens from each treatment. At the end of experiment, five hens of each treatment were selected and sacrificed, then 50 g of liver tissue was removed to study gene expression of insulin receptor (InR), glucose transporter1 (Glut1), sterol regulatory element binding protein (SREBP1), Ribosomal S6 kinase1 (S6K1), Target of Rapamycin (TOR) and Forkhead box protein O1 (FOXO1). The results showed that the injection of estradiol induced fatty liver and increased plasma concentrations of cholesterol and triglyceride as well as activity of AST, ALT and ALP. In hens with fatty liver, expression of FOXO1 (4.1-fold), TOR (3.9-fold), S6K1 (3.3-fold) genes increased, and conversely, expression of InR (4.6-fold), Glut1 (7.5-fold) decreased. In conclusion results of the present study showed that the fatty liver induction in laying hens increased expression of insulin resistance-related genes.
Akbar Yaghobfar; Rezvan Yaghoubfar; Ehsan Zare Banadkoki
Volume 23, Issue 2 , July 2021, , Pages 223-233
Abstract
The experiment was conducted to investigate the effects of cell wall carbohydrates with diet supplemented enzyme on the function and expression of glucose transporter genes (SGLT1 and GLUT2), peptide transporter (PepT1) and mucin production (MUC2) in the small intestine of broilers. In this study, 1100 ...
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The experiment was conducted to investigate the effects of cell wall carbohydrates with diet supplemented enzyme on the function and expression of glucose transporter genes (SGLT1 and GLUT2), peptide transporter (PepT1) and mucin production (MUC2) in the small intestine of broilers. In this study, 1100 mixeddayold chickens (male and female), Ross 308 were used based on a completely randomized design with 11 treatments and five replications (20 birds per replication) for 42 days. Experimental diets included control diets, diets containing wheat, barley, wheat bran, rice bran, and hull less barley with and without enzymes, respectively. The results showed that the effect of diets containing wheat, barley and hull less barley with enzyme on the total live weight of broiler chickens at 42 days of age was significantly different (P <0.05).Cell wall carbohydrates of wheat, wheat bran and rice bran in diets increased pancreatic amylase activity (barley 3.02, wheat 5.99 U/mg CP of small intestinal tissue) (P < 0.05). The expression of the studied SGLT1 and MUC2 genes in the experimental diets without enzyme showed a significant increase compared to enzymes supplemented diet (P < 0.05). Also, among the groups of enzyme-supplemented diets, only wheat and rice bran groups were able to increase the expression of SGLT1, MUC2 and GLUT2 genes compared to the control group (P <0.05). In conclusion, supplementation of diets containing cell wall carbohydrates with enzyme affects the expression of glucose transport genes (SGLT1 and GLUT2), peptide transport (PepT1) and mucin production (MUC2) in the small intestine jejunum. This indicates the optimal function of the digestive system of broilers in terms of digestion and absorption of nutrients.
Marjan Esmaili; Zarbakht Ansari Pirsaraie
Volume 18, Issue 3 , October 2016, , Pages 603-613
Abstract
The aim of this study was to investigate the effect of different concentration of royal jelly’s fatty acids (0.0, 125, 250, 500, 1000 µg/ml and 50 µl DMSO) on in vitro maturation of goat oocyte. Goat ovaries were collected from local slaughterhouse and transported to the laboratory ...
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The aim of this study was to investigate the effect of different concentration of royal jelly’s fatty acids (0.0, 125, 250, 500, 1000 µg/ml and 50 µl DMSO) on in vitro maturation of goat oocyte. Goat ovaries were collected from local slaughterhouse and transported to the laboratory and COCs were cultured into the maturation media supplemented with different concentration of royal jelly’s fatty acids. The results indicated that the increase of royal jelly’s fatty acids concentration from control to 250µg/mL were significantly (P
Zohreh Mozduri; Mohammad Reza Bakhtiarizadeh
Volume 18, Issue 1 , April 2016, , Pages 13-26
Abstract
This study was done to gain insights into transcriptional regulation of negative energy balance (NEB) assoctiated genes. Overexpressed genes in NEB were identified using microarray and RNA-seq data and promoter analysis of these overexpressed genes was applied to identify novel transcription factors. ...
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This study was done to gain insights into transcriptional regulation of negative energy balance (NEB) assoctiated genes. Overexpressed genes in NEB were identified using microarray and RNA-seq data and promoter analysis of these overexpressed genes was applied to identify novel transcription factors. Moreever, STRING database was used to construct a regulatory network of identified transcription factors. The results of the gene expression analysis revealed that eight genes in severe NEB are more frequent and significant (P<0.05) in comparison to the mild NEB. Promoter analysis showed that promoters of overexpressed genes are enriched in putative binding sites for 19 transcription factors. This group included known NEB-associated transcription factor (NF-κB), and a number of transcription factors (such as SP1, ZBP89, NFI, Zf9, MYC, ZBTB7A, FOXF2 and KLF6) that had not been previously reported to be associated with NEB. Based on the present results, 18 new effective candidate trsnacription factors introduced in this study can provide new information to gain a better understanding of the regulatory network involved in NEB.
Sana Farhadi; Ali Akbar Masoudi; Rasoul Vaez Torshizi
Volume 17, Issue 1 , April 2015, , Pages 9-18
Abstract
The TLR4 gene structure as the main receptor for lipopolysaccharide recognition of Gram-negative bacteria was investigated in two strains of Iranian commercial Arian line and west Azerbaijan native chicks and its expression was studied in some major organs. Blood samples of the 120 birds were taken and ...
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The TLR4 gene structure as the main receptor for lipopolysaccharide recognition of Gram-negative bacteria was investigated in two strains of Iranian commercial Arian line and west Azerbaijan native chicks and its expression was studied in some major organs. Blood samples of the 120 birds were taken and total DNAs extracted. Then, the target gene was sequenced using four pairs of primers on four samples of each strain. The effects of amino acid changes on protein function were assessed by PANTHER software. To investigate the gene expression, total RNAs were extracted from liver, spleen, and lung tissues after slaughter of the birds. Gene expression was assessed by semi-quantitative RT-PCR. The amplified RNAs from tissues of liver, spleen and lungs. Then electrophoresis images were processed with the Image software and quantitative data analyzed by MINITAB. The results showed three new single polymorphisms (T1147C, C2246A and A1832G) in the sequence of TLR4 gene in the studied populations. The effects of variations on TLR4 protein structure indicated a deleterious effect of mutations on protein structure. The TLR4 gene expression in case of native and commercial strains did not show significant differences. Due to importance of the TLR4 in innate immunity and identification of some novel mutations affecting on protein structure, this gene could be a valuable candidate related to genetic resistance in poultry.