Alleviation of chronic heat stress in broilers by dietary supplementation of betaine and turmeric rhizome powder: dynamics of performance,leukocyte profile,humoral immunity,and antioxidant status     

Hossein Akhavan-Salamat  Hossein Ali Ghasemi 《Tropical animal health and production》2016,48(1):181-188

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Prevalence of renal lesions in slaughtered cattle in Shiraz,Iran, and detection of Leptospira in them by nested PCR-RFLP     

Vahideh Taghadosi  Saeid Hosseinzadeh  Seyed Shahram Shekarforoush  Azadeh Samiei 《Tropical animal health and production》2016,48(8):1691-1696

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Evaluation of resistance in 14 soybean genotypes to <Emphasis Type="Italic">Tetranychus urticae</Emphasis> (Acari: Tetranychidae)     

Amin Sedaratian  Yaghoub Fathipour  Saeid Moharramipour 《Journal of pest science》2009,82(2):163-170

The effect of 14 soybean genotypes (Sahar, Sari, Williams, Tellar, Hill, Clark, Tms, Dpx, Zane, 032, 033, L₁₇, Ks3494 and I27) on life history and fecundity of two-spotted spider mite (TSSM), Tetranychus urticae Koch, was investigated. All experiments were conducted at 28 ± 1°C, 65 ± 5% r.h. and a photoperiod of L16:D8 h. The highest development time was 8.41 and 8.78 days for male and female on I27, and the lowest value of this period was obtained on Sahar and Ks3494 for male and female, respectively (7.11 and 7.60 days, respectively). The TSSM fecundity varied from 33.62 to 153.82 eggs per female, which was minimum on 032 and maximum on L₁₇. The comparison of TSSM biological parameters on different soybean genotypes and cluster analysis of these parameters demonstrated that Ks3494, 032, Dpx and Sahar were the most resistant genotypes to this pest. An antibiosis process could be, at least in part, the cause of this variation. Knowledge of the extent of susceptibility or resistance of genotypes and biology of a pest on a crop are fundamental components of integrated pest management (IPM) programs for any crop. Implication of these observations in the control of TSSM on soybean is discussed.  相似文献   

Mercury release from dental amalgam restorations after magnetic resonance imaging and following mobile phone use     

Mortazavi SM  Daiee E  Yazdi A  Khiabani K  Kavousi A  Vazirinejad R  Behnejad B  Ghasemi M  Mood MB 《Pakistan journal of biological sciences: PJBS》2008,11(8):1142-1146

In the 1st phase of this study, thirty patients were investigated. Five milliliter stimulated saliva was collected just before and after MRI. The magnetic flux density was 0.23 T and the duration of exposure of patients to magnetic field was 30 minutes. In the 2nd phase, fourteen female healthy University students who had not used mobile phones before the study and did not have any previous amalgam restorations were investigated. Dental amalgam restoration was performed for all 14 students. Their urine samples were collected before amalgam restoration and at days 1, 2, 3 and 4 after restoration. The mean +/- SD saliva Hg concentrations of the patients before and after MRI were 8.6 +/- 3.0 and 11.3 +/- 5.3 microg L(-1), respectively (p < 0.01). A statistical significant (p < 0.05) higher concentration was observed in the students used mobile phone. The mean +/- SE urinary Hg concentrations of the students who used mobile phones were 2.43 +/- 0.25, 2.71 +/- 0.27, 3.79 +/- 0.25, 4.8 +/- 0.27 and 4.5 +/- 0.32 microg L(-1) before the amalgam restoration and at days 1, 2, 3 and 4, respectively. Whereas the respective Hg concentrations in the controls, were 2.07 +/- 0.22, 2.34 +/- 0.30, 2.51 +/- 0.25, 2.66 +/- 0.24 and 2.76 +/- 0.32 microg L(-1). It appears that MRI and microwave radiation emitted from mobile phones significantly release mercury from dental amalgam restoration. Further research is needed to clarify whether other common sources of electromagnetic field exposure may cause alterations in dental amalgam and accelerate the release of mercury.  相似文献   

Study on some morphological and physical attributes of walnut used in mass models     

A. Ebrahimi  A. Zarei  R. Fatahi  M. Ghasemi Varnamkhasti 《Scientia Horticulturae》2009

Physical properties of horticultural products are important in designing the sorting, transporting, processing and packaging systems. Among physical attributes, dimensions, weight, volume, projected areas and porosity are useful for designing grading systems. This study carried out on four superior walnut (Juglands regia) genotypes, which were selected from primary morphological screening of 608 genotypes in Neyriz city, Iran. G-570 with higher nut weight (12.46 g), kernel weight (8.25 g) and kernel ratio of 66.21% was a promising genotype among others. Regarding studied physical properties, G-570 was 44 mm in diameter significantly different from other genotype. In this research walnut mass was predicted by using different physical properties with linear and nonlinear models as three classifications (dimension, projected areas and volume). Results showed that the highest correlation was between models number three, two and one. Among grading system based on dimensions in walnut (first classification), minor diameter model with nonlinear relation was the best and could be considered as a good model for economical and horticultural designing systems.  相似文献   

Common oils and insecticidal control and their resistance to Aleuroclava jasmini (Hem.: Aleyrodidae) on paper mulberry in Iran     

Saeid Javadi Khederi  Mohammad Khanjani  Asghar Hosseininia  Germano Leão Demolin Leite  Majid Hosseinpour 《国际虫害防治杂志》2020,66(3):243-251

Abstract

Aleuroclava jasmini (Hemiptera: Aleyrodidae) is a major insect pest of paper mulberry (Broussonetia papyrifera) in Iran, negatively affecting its production. Considering the importance of oils in the integrated management programs of such pests, the present study examined the possibility of whitefly control on paper mulberry plant to assess mortality rate (MR), synergistic rate (SR), resistance rate (RR), and lethal concentration for 50% of the population (LC₅₀) of oils and common insecticide in populations from four areas of Tehran, Iran (one susceptible and three non-susceptible). The best chemical treatments against A. jasmini adults and nymphs in paper mulberry plants were neem oil (1?ml L^?1) mixed with deltamethrin (0.5?ml L^?1) or with buprofezin (1?ml L^?1). The neem, akylarylpolyglyglycol ether and volk oils mixed with deltamethrin or buprofezin also had synergistic effects on adults and nymphs of A. jasmini, respectively, in Azadi, Shahrake Gharb, and Vanak areas (non-susceptible populations), but with higher concentrations (> LC₅₀) and lower SR than in Garm Dareh area (susceptible population). We observed that A. jasmini adults showed the greatest resistance to deltamethrin in Vanak area and nymphs of this pest to buprofezin in Shahrake Gharb area.  相似文献   

Zinc deficiency in winter oilseed rape (Brassica napus L.) is counteracted by N fertilization     

Dr Hossein Sabahi  Saeid Soufizadeh  Reza Mirzaei Talarposhti 《Acta Agriculturae Scandinavica, Section B - Plant Soil Science》2013,63(4):317-325

Abstract

A two-year experiment was conducted on oilseed rape in 2004–2005 and 2005–2006 in north Iran. Treatments were 0, 50, 100, and 150 kg N ha^?1 as urea (F₀ to F₁₅₀, respectively), 100 kg N ha^?1 as urea +50 kg N ha^?1 as manure (F₁₀₀M₅₀), 50 kg N ha^?1 as urea +100 kg N ha^?1 as manure (F₅₀M₁₀₀), and 150 kg N ha^?1 as manure (M₁₅₀). Results indicated that seed yield in M₁₅₀ was significantly lower than in F₁₅₀ in both years. Seed protein content in the inorganic fertilization system (F₁₅₀) was significantly higher than in the organic (M₁₅₀) and integrated systems (F₁₀₀M₅₀ and F₅₀M₁₀₀). Seed oil content, however, was higher in the organic treatment than in the inorganic treatment. Less N uptake in F₁₀₀M₅₀ compared with F₁₅₀ in the first year and in F₅₀M₁₀₀ compared with F₁₅₀ in the second year did not result in similar differences in grain yield. Owing to the low content of soil-available Zn, the association between Zn and N concentration in shoot in the inorganic treatments was low. In spite of a significant increase in soil-available Zn under the organic and integrated treatments, no significant increase was observed in Zn concentration of shoot in these treatments compared with F₁₅₀. It appears that the excessive availability of P in M₁₅₀, F₅₀M₁₀₀, and F₁₀₀M₅₀ has reduced either Zn uptake or its translocation from root to shoot. Overall, it could be concluded that in order to increase Zn uptake under manure application in a Zn-deficient soil, N availability should increase.  相似文献   

Gating Behavior of Endoplasmic Reticulum Potassium Channels of Rat Hepatocytes in Diabetes     

Maedeh Ghasemi  Naser Khodaei  Sajjad Salari  Afsaneh Eliassi  Reza Saghiri 《Iranian Biomedical Journal》2014,18(3):165-172

Background: Defects in endoplasmic reticulum homeostasis are common occurrences in different diseases, such as diabetes, in which the function of endoplasmic reticulum is disrupted. It is now well established that ion channels of endoplasmic reticulum membrane have a critical role in endoplasmic reticulum luminal homeostasis. Our previous studies showed the presence of an ATP-sensitive cationic channel in endoplasmic reticulum. Therefore, in this study, we examined and compared the activities of this channel in control and diabetic rats using single-channel recording techniques. Method: Male Wistar rats were made diabetic for 2 weeks with a single dose injection of streptozotocin (45 mg/kg). Ion channel incorporation of rough endoplasmic reticulum of diabetic hepatocytes into the bilayer lipid membrane allowed the characterization of K⁺ channel. Results: Ion channel incorporation of rough endoplasmic reticulum vesicles into the bilayer lipid revealed that the channel current-voltage (I-V) relation with a mean slope conductance of 520 ± 19 pS was unaffected in diabetes. Interestingly, the channel Po-voltage relation was significantly lower in diabetic rats at voltages above +30 mV. Conclusion: We concluded that the endoplasmic reticulum cationic channel is involved in diabetes. Also, this finding could be considered as a goal for further therapeutic plans. Key Words: Endoplasmic reticulum, Diabetes, Ion channels, Bilayer lipid membrane, Liver  相似文献   

Exon Sequencing of PKD1 Gene in an Iranian Patient with Autosomal-Dominant Polycystic Kidney Disease     

Atousa Hafizi  Saeid Reza Khatami  Hamid Galehdari  Gholamreza Shariati  Ali Hossein Saberi  Mohammad Hamid 《Iranian Biomedical Journal》2014,18(3):143-150

Introduction: Autosomal dominant polycystic kidney disease (ADPKD) is one of the most common genetic kidney disorders with the incidence of 1 in 1,000 births. ADPKD is genetically heterogeneous with two genes identified: PKD1 (16p13.3, 46 exons) and PKD2 (4q21, 15 exons). Eighty five percent of the patients with ADPKD have at least one mutation in the PKD1 gene. Genetic studies have demonstrated an important allelic variability among patients, but very few data are known about the genetic variation among Iranian populations. Methods: In this study, exon direct sequencing of PKD1 was performed in a seven-year old boy with ADPKD and in his parents. The patient’s father was ADPKD who was affected without any kidney dysfunction, and the patient’s mother was congenitally missing one kidney. Results: Molecular genetic testing found a mutation in all three members of this family. It was a missense mutation GTG>ATG at position 3057 in exon 25 of PKD1. On the other hand, two novel missense mutations were reported just in the 7-year-old boy: ACA>GCA found in exon 15 at codon 2241 and CAC>AAC found in exon 38 at codon 3710. For checking the pathogenicity of these mutations, exons 15, 25, and 38 of 50 unrelated normal cases were sequenced. Conclusion: our findings suggested that GTG>ATG is a polymorphism with high frequency (60%) as well as ACA>GCA and CAC>AAC are polymorphisms with frequencies of 14% and 22%, respectively in the population of Southwest Iran. Key Words: Autosomal dominant polycystic kidney disease (ADPKD), Polycystic kidney diseases (PKD), PKD1 gene, Iran  相似文献   

Human leukocyte antigen-G expression on dendritic cells induced by transforming growth factor-beta1 and CD4+ T cells proliferation     

Abediankenari S  Ghasemi M  Kim YJ 《Iranian Biomedical Journal》2011,15(1-2):1-5

Background: During antigen capture and processing, mature dendritic cells (DC) express large amounts of peptide-MHC complexes and accessory molecules on their surface. DC are antigen-presenting cells that have an important role in tolerance and autoimmunity. The transforming growth factor-beta1 (TGF-Beta1) cytokine has a regulatory role on the immune and non-immune cells. The aim of this study is to evaluate the effect of TGF-Beta1 on the induction of human leukocyte antigen-G (HLA-G) expression on the DC which is derived from monocyte. Methods: In this study, we evaluated the effect of TGF-Beta1 in induction HLA-G expression on the monocyte-derived DC by flowcytometry and then CD4+ T cell proliferative responses in the presence of DC-treated TGF-Beta1 was studied. Results: The results of this study showed that DC bearing HLA-G down-regulated activation of CD4+ T cells and production of IL-6 and IL-17 in comparison with control (P<0.05). Conclusion: It is concluded that TGF-Beta1 has an important regulatory role in CD4+ T cell proliferation by increasing HLA-G on DC and these cells can probably prevent unexpected immune responses in vivo.  相似文献