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本文报道海拔3417m和4280m地区世居藏族和移居汉族青少年运动状态下心肺功能的对比研究。结果显示:3417m和4280m世居藏族的最大氧耗量、无氧阈值及最大心输出量都明显大于汉族,血氧饱和度(Sao2)随运动负荷的增加而降低。海拔3417m藏、汉族的△Sao2分别为7.46%和10.03%,4280m处为8.57%和13.75%,最大心率随海拔升高而下降。研究提示,藏族青少年有较高的最大有氧能力,反映了他们对低氧环境的适应优势。 相似文献
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DON AT AGOSTI 《Systematic Entomology》1994,19(2):93-117
Abstract. The holarctic ant tribe Formicini is revised, the new genus Bajcaridris described, and possible phylogenetic relationships are discussed. The subgenus Iberoformica is synonymized with Formica. A synopsis, diagnosis and keys to the genera are provided. 相似文献
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Plasmonics - In this paper, we study the optical properties and surface plasmon resonance of a bimetallic core-shell spherical nanoparticle exhibiting monolayer graphene coatings. The extinction... 相似文献
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Expression of novel lhmlt fusion protein using plant viral vector and study of its anticancer effect
Naseri Zahid Dorani Uliaei Ebrahim Ofoghi Hamideh Davarpanah Seyed Javad 《Plant Cell, Tissue and Organ Culture》2020,143(1):97-108
Plant Cell, Tissue and Organ Culture (PCTOC) - Melittin peptide is the main component of honey bee venom with the cytotoxic and anti-cancer effect which can affect healthy and cancerous cells... 相似文献
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Ali Behrad Vakylabad Mahin Schaffie Ali Naseri Mohammad Ranjbar Zahra Manafi 《Bioprocess and biosystems engineering》2016,39(7):1081-1104
In this investigation, copper was bioleached from a low-grade chalcopyrite ore using a chloride-containing lixiviant. In this regard, firstly, the composition of the bacterial culture media was designed to control the cost in commercial application. The bacterial culture used in this process was acclimated to the presence of chloride in the lixiviant. Practically speaking, the modified culture helped the bio-heap-leaching system operate in the chloridic media. Compared to the copper recovery from the low-grade chalcopyrite by bioleaching in the absence of chloride, bioleaching in the presence of chloride resulted in improved copper recovery. The composition of the lixiviant used in this study was a modification with respect to the basal salts in 9 K medium to optimize the leaching process. When leaching the ore in columns, 76.81 % Cu (based on solid residues of bioleaching operation) was recovered by staged leaching with lixiviant containing 34.22 mM NaCl. The quantitative findings were supported by SEM/EDS observations, X-ray elemental mapping, and mineralogical analysis of the ore before and after leaching. Finally, Adaptive neuro-fuzzy inference system (ANFIS) was used to simulate the operational parameters affecting the bioleaching operation in chloride–sulfate system. 相似文献
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Negin Parsamanesh Maryam Moossavi Tahmineh Tavakkoli Hossein Javdani Tahereh Fakharian Seyedeh Zahra Moossavi Mohsen Naseri 《Journal of cellular physiology》2019,234(9):15044-15047
Gastric cancer is the second cause of cancer-related mortality and the fourth most common cancers worldwide. Owing to the immune modulatory effect of vitamin D in the body, the role of vitamin D receptor gene in vitamin D regulation receives a great deal of research interest. The aim of the current study was to highlight the association between two variants of TaqI and FokI in the vitamin D receptor gene and gastric cancer predisposition in a sample of South Khorasan population. The present investigation consisted of 69 patients affected with gastric cancer and 100 healthy individuals. The genomic DNA was extracted by salting out the protocol from peripheral venous blood. Genotyping of TaqI and FokI variants were performed by PCR-RFLP method. Our findings manifested that TC genotype of TaqI polymorphism was statistically significant between the case and the control groups (p = 0.002). Moreover, the frequency of TC + CC genotypes was statistically significant between the two groups (p = 0.009). Furthermore, we could not find any meaningful association between FokI variant and the participant groups. The present results declared that, in our population, TC genotype of TaqI polymorphism has an association with gastric cancer susceptibility. In addition, more investigation with greater sample sizes is needed to confirm our results. 相似文献
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Tanuj Joshi Amit Kumar Singh Pouya Haratipour Archana Negi Sah Abhay K. Pandey Rozita Naseri Vijay Juyal Mohammad H. Farzaei 《Journal of cellular physiology》2019,234(10):17212-17231
Diabetes affects a large population of the world. Lifestyle, obesity, dietary habits, and genetic factors contribute to this metabolic disease. A target pathway to control diabetes is the 5′-adenosine monophosphate-activated protein kinase (AMPK) signaling pathway. AMPK is a heterotrimeric protein with α, β, and γ subunits. In several studies, AMPK activation enhanced glucose uptake into cells and inhibited intracellular glucose production. Impairment of AMPK activity is present in diabetes, according to some studies. Drugs used in the treatment of diabetes, such as metformin, are also known to act through regulation of AMPK. Thus, drugs that activate and regulate AMPK are potential candidates for the treatment of diabetes. In addition, many patients encounter important adverse effects, like hypoglycemia, while using allopathic drugs. As a result, the investigation of plant-derived natural drugs that lack adverse side effects and treat diabetes is necessary. Natural products like berberine, quercetin, resveratrol, and so forth have shown significant potential in regulating and activating the AMPK pathway which can lead to manage diabetes mellitus and its complications. 相似文献
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