排序方式: 共有135条查询结果,搜索用时 15 毫秒
1.
Chromosome-specific subsets of human alphoid DNA identified by a chromosome 2-derived clone 总被引:3,自引:0,他引:3
Mariano Rocchi Antonio Baldini Nicoletta Archidiacono Shabnam Lainwala Orlando J. Miller Dorothy A. Miller 《Genomics》1990,8(4):705-709
We have cloned an alphoid DNA fragment, pBS4D, from the DNA of a human-hamster hybrid cell line containing chromosome 2 as its only cytologically detectable human component. Under high stringency conditions, pBS4D hybridized in situ mostly to chromosome 2 and to a lesser extent to chromosomes 18 and 20. Restriction analysis using the DNA from selected somatic hybrid cell lines revealed that the genomic organization of this alphoid DNA differs on each of these three chromosomes. 相似文献
2.
Nemati Sara Pazoki Hossein Mohammad Rahimi Hanieh Asadzadeh Aghdaei Hamid Shahrokh Shabnam Baghaei Kaveh Mirjalali Hamed Zali Mohammad Reza 《Molecular biology reports》2021,48(10):7041-7047
Molecular Biology Reports - Autophagy process is an important defense mechanism against intracellular infection. This process plays a critical role in limiting the development of Toxoplasma gondii.... 相似文献
3.
4.
The system size dependence of the thermodynamic properties of electrolytic systems in "Spherical Boundary Conditions" (SBC) have been examined in this work. Coulombic systems were simulated with different system sizes (N ) for a wide range of concentrations, different ionic charges and solvent permittivities. The effects of system size upon the mean internal energy ?U? and mean ionic activity coefficient ?γ ±? values were determined. Our results indicated that there was no dependence of the thermodynamic properties upon system size in the non-Euclidean geometry. Different methods of extrapolating the thermodynamic properties to infinite numbers were studied in detail. In contrast to the Euclidean geometry, the method of extrapolating ?U? or ?γ ±? versus N -1, N -2/3 and N -1/3 was not statistically justifiable nor advantageous. Therefore, SBC is well suited to simulating systems involving long-range electrostatic interactions because the results do not dependent upon system size. 相似文献
5.
6.
Proline, a stress marker, is routinely quantified by a protocol that essentially uses hazardous toluene. Negative impacts of toluene on human health prompted us to develop a reliable alternate protocol for proline quantification. Absorbance of the proline-ninhydrin condensation product formed by reaction of proline with ninhydrin at 100 °C in the reaction mixture was significantly higher than that recorded after its transfer to toluene, revealing that toluene lowers sensitivity of this assay. λ max of the proline-ninhydrin complex in the reaction mixture and toluene were 508 and 513 nm, respectively. Ninhydrin in glacial acetic acid yielded higher quantity of the proline-ninhydrin condensation product compared to ninhydrin in mixture of glacial acetic acid and H3PO4, indicating negative impact of H3PO4 on proline quantification. Further, maximum yield of the proline-ninhydrin complex with ninhydrin in glacial acetic acid and ninhydrin in mixture of glacial acetic acid and H3PO4 was achieved within 30 and 60 min, respectively. This revealed that H3PO4 has negative impact on the reaction rate and quantity of the proline-ninhydrin complex formed. In brief, our proline quantification protocol involves reaction of a 1-ml proline sample with 2 ml of 1.25 % ninhydrin in glacial acetic acid at 100 °C for 30 min, followed by recording absorbance of the proline-ninhydrin condensation product in the reaction mixture itself at 508 nm. Amongst proline quantification protocols known till date, our protocol is the most simple, rapid, reliable, cost-effective, and eco-friendlier. 相似文献
7.
8.
Aref Shariati Soheil Vesal Amin Khoshbayan Parnian Goudarzi Davood Darban-Sarokhalil Shabnam Razavi Mojtaba Didehdar Zahra Chegini 《Journal of applied microbiology》2022,132(4):2531-2546
An important role has been recently reported for bacterial biofilm in the pathophysiology of chronic diseases, such as chronic rhinosinusitis (CRS). CRS, affecting sinonasal mucosa, is a persistent inflammatory condition with a high prevalence around the world. Although the exact pathological mechanism of this disease has not been elicited yet, biofilm formation is known to lead to a more significant symptom burden and major objective clinical indicators. The high prevalence of multidrug-resistant bacteria has severely restricted the application of antibiotics in recent years. Furthermore, systemic antibiotic therapy, on top of its insufficient concentration to eradicate bacteria in the sinonasal biofilm, often causes toxicity, antibiotic resistance, and an effect on the natural microbiota, in patients. Thus, coming up with alternative therapeutic options instead of systemic antibiotic therapy is emphasized in the treatment of bacterial biofilm in CRS patients. The use of topical antibiotic therapy and antibiotic eluting sinus stents that induce higher antibiotic concentration, and decrease side effects could be helpful. Besides, recent research recognized that various natural products, nitric oxide, and bacteriophage therapy, in addition to the hindered biofilm formation, could degrade the established bacterial biofilm. However, despite these improvements, new antibacterial agents and CRS biofilm interactions are complicated and need extensive research. Finally, most studies were performed in vitro, and more preclinical animal models and human studies are required to confirm the collected data. The present review is specifically discussing potential therapeutic strategies for the treatment of bacterial biofilm in CRS patients. 相似文献
9.
Chandra Dinesh Srivastava Rashmi Gupta Vadakattu V. S. R. Franco Christopher M. M. Paasricha Nishat Saifi Shabnam K. Tuteja Narendra Sharma Anil Kumar 《Plant and Soil》2019,441(1-2):261-281
Plant and Soil - Plant growth promoting bacteria (PGPB) containing 1-aminocyclopropane-1-carboxylate (ACC) deaminase can play an important role in abiotic stress tolerance in plants, particularly... 相似文献
10.
Shukla Pawan Reddy Ramesha A. Ponnuvel Kangayam M. Rohela Gulab Khan Shabnam Aftab A. Ghosh M. K. Mishra Rakesh Kumar 《Molecular biology reports》2019,46(2):1809-1817
Molecular Biology Reports - Mulberry (Morus alba L.) is the sole food source for the mulberry silkworm, Bombyx mori and therefore important for sericulture industry. Different abiotic stress... 相似文献