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171.
Rats sustaining lesions of the posteroventral portion of the medial preoptic nucleus and the anterior portion of the suprachiasmatic nucleus exhibited decreased cumulative urine volumes, as well as lower sodium and potassium excretion following hypertonic saline injections. Circadian rhythms and mean levels of these variables during the steady state were unchanged. The lesioned area may participate in central regulation of water and electrolyte balance. 相似文献
172.
Growth performance and carcass quality of fattening lambs from fat-tailed and tailed sheep breeds 总被引:1,自引:0,他引:1
The growth performance and carcass traits of two fat-tailed breeds (Chaal and Zandi) and their crosses with rams of a tailed breed (Zel) were compared. After weaning, the growth and feed consumption of male and female lambs fattened for 114 days were recorded. A total of 45 male and female lambs were slaughtered and the left side of the carcasses were cut into six pieces, and the lean meat, bone, subcutaneous and intermuscular fat were determined. Average daily gain and feed conversion ratio in crossbred lambs improved, but the differences with pure lambs were not significant. The average weight of shoulder, brisket and loin were higher in crossbred than pure breed lambs (P < 0.01). The percentage of protein in the carcass of Zel × Zandi lambs was significantly higher than Zandi lambs. The smaller size and lower weight of fat-tail in crossbred lambs were compensated by higher percentage of subcutaneous, intermuscular and internal fat. The fat-tailed breeds provided good quality lean meat in terms of lower percentage of intermuscular fat. 相似文献
173.
Hamzeh Oraie Nasrullah Rastegar-Pouyani Azar Khosravani Eskandar Rastegar-Pouyani 《Zoology in the Middle East.》2013,59(4):302-307
Twenty-three morphological features of 140 specimens of Ophisops elegans were analysed in order to identify sexual dimorphism in west and northwestern populations of Iran. Sexual dimorphism is significant (P<0.05) in nearly all metric features except for trunk length (TL) and length of widest part of belly (LWB), and in only two meristic characters, the number of dorsal scales around mid-body (DSN) and the number of femoral pores (FPN). Males have a relatively longer snout-vent length (SVL) than females and males have generally relatively larger heads compared to females. 相似文献
174.
Karimi Farzaneh Amiri-Moghaddam Seyedeh Mina Bagheri Zakieh Bahrami Ahmad Reza Goshayeshi Ladan Allahyari Abolghasem Mirsadraee Marjane Fanipakdel Azar Bari Alireza Emadi-Torghabeh Ali Kerachian Mohammad Amin Rahimi Hossein Matin Maryam M. 《Molecular biology reports》2021,48(3):2273-2284
Molecular Biology Reports - Genome-wide association studies have revealed that some single nucleotide polymorphisms at 8q24, such as rs6983267, might be effective in susceptibility to various... 相似文献
175.
Azar Milad Taleb Hesami Zavvari Mahdi Zehforoosh Yashar Mohammadi Pejman 《Plasmonics (Norwell, Mass.)》2020,15(4):975-983
Plasmonics - A new design of graphene-based plasmonic waveguide is presented and its transmission properties are studied. The transmission channel is such designed that the chemical potential of... 相似文献
176.
A complex of polyadenylic-polyuridylic acids effectively inhibits the in vivo production of immunologic tolerance to human gamma globulin in mice. Moreover, this effect can be obtained only when the polynucleotide complex is given within 4 hr after antigen administration.Reconstitution of irradiated mice with combinations of T and B cells originating from tolerant or previously untreated mice demonstrates that poly A:U is responsible for the adjuvant effect observed. Poly A:U exerts its adjuvant effect primarily upon T cells, while B cells remain essentially uninfluenced by the polynucleotides. 相似文献
177.
178.
K. H. Nicolaides G. Azar D. Byrne C. Mansur K. Marks 《BMJ (Clinical research ed.)》1992,304(6831):867-869
OBJECTIVE--To examine the significance of fetal nuchal translucency at 10-14 weeks'' gestation in the prediction of abnormal fetal karyotype. DESIGN--Prospective screening study. SETTING--The Harris Birthright Research Centre for Fetal Medicine, King''s College Hospital, London. SUBJECTS--827 fetuses undergoing first trimester karyotyping by amniocentesis or chorionic villus sampling. MAIN OUTCOME MEASURE--Incidence of chromosomal defects. RESULTS--The incidence of chromosomal defects was 3% (28 of 827 cases). In the 51 (6%) fetuses with nuchal translucency 3-8 mm thick the incidence of chromosomal defects was 35% (18 cases). In contrast, only 10 of the remaining 776 (1%) fetuses were chromosomally abnormal. CONCLUSION--Fetal nuchal translucency > or = 3 mm is a useful first trimester marker for fetal chromosomal abnormalities. 相似文献
179.
Neri Azar Orna Liarzi Maor Zavitan Mohamed Samara Ahmed Nasser David Ezra 《Microbial biotechnology》2023,16(8):1629-1638
The worldwide demand for reduced and restricted use of pesticides in agriculture due to serious environmental effects, health risks and the development of pathogen resistance calls for the discovery of new bioactive compounds. In the medical field, antibiotic-resistant microorganisms have become a major threat to man, increasing mortality. Endophytes are endosymbiotic microorganisms that inhabit plant tissues without causing any visible damage to their host. Many endophytes secrete secondary metabolites with biological activity against a broad range of pathogens, making them potential candidates for novel drugs and alternative pesticides of natural origin. We isolated endophytes from wild plants in Israel, focusing on endophytes that secrete secondary metabolites with biological activity. We isolated 302 different endophytes from 30 different wild plants; 70 of them exhibited biological activity against phytopathogens. One biologically active fungal endophyte from the genus Penicillium, isolated from a squill (Urginea maritima) leaf, was further examined. Chloroform-based extraction of its growth medium was similarly active against phytopathogens. High-performance liquid chromatography separation followed by gas chromatography/mass spectrometry analysis revealed a single compound—mycophenolic acid—as the main contributor to the biological activity of the organic extract. 相似文献
180.
Françoise Bernard Azar Hassanpour Gila Gholizadeh Sahar Hassannejad Zahede Chaghari 《Acta Physiologiae Plantarum》2011,33(2):431-436
In this study, the ability of safflower-isolated root cultures to produce yellow pigments was tested. Initially, the growth
of isolated roots in static liquid medium was evaluated with different volumes of culture medium. A volume of 6 ml of medium
per flask of 250 ml gave the best growth performance and, in this condition of culture, production of pigments from isolated
roots treated or not by light has been determined by spectrophotometry (321 and 400 nm). Under these conditions, the production
of yellow pigments amounted to 13.18 mg g−1 fresh weight and the light stimulated the synthesis of these pigments by isolated roots. Total yellow pigments of 24.12,
38.91 and 46.38 mg g−1 fresh weight was produced by the roots treated with 9, 13.5 and 18% (v/v) gas oil, respectively, representing high values
of production. The pigments were released in large quantities in the medium. The increased synthesis of pigments as a result
of gas oil treatment was accompanied by a reduction of the peroxidase activity of roots. Given the high production of yellow
pigments, systems of isolated root culture could be considered for the study of a larger scale production of safflower pigments
widely used for various industrial purposes. 相似文献