Tổng hợp tài liệu, ebook Khoa Học Tự Nhiên tham khảo.
SUMMARY This research focused on the mycorrhizal fungi (arbuscular mycorrhizae) which can synthetize taxol. Those fungi were isolated from Taxus wallichiana Zucc that grows in the natural forest in Lac Duong, Lam Dong province. According to the research, Fusarium oxysporum is mostly presented as endosymbiotic fungus (arbuscular mycorrhizae). Th...
6 trang | Chia sẻ: thucuc2301 | Ngày: 30/11/2020 | Lượt xem: 515 | Lượt tải: 0
As the result of researches of the last 50 years since the publication of the checklist by Pócs (1965), 141 species have been added to the liverwort and hornwort flora of Vietnam. Nevertheless, the known number of hepatic taxa is not comprehensive and the progress in the knowledge of taxonomic diversity of Vietnam is hardly near to the end. ...
12 trang | Chia sẻ: yendt2356 | Ngày: 30/11/2020 | Lượt xem: 512 | Lượt tải: 0
SUMMARY Platelet-derived growth factor-BB has been approved by US Food and Drug AdministrationFDA for the treatment of neuropathic ulcers. Since the number of diabetic patients has increased rapidly, it is necessary to study the production of PDGF-BB with low cost for treatment. Among the expression systems used for human recombinant protein exp...
7 trang | Chia sẻ: thucuc2301 | Ngày: 30/11/2020 | Lượt xem: 550 | Lượt tải: 0
Male. Unknown Distribution. NE Vietnam (Thai Nguyen); NW Vietnam (Viet Tri); China (Yunnan, Xishuangbanna). Biology. Unknown Etymology. The epithet refers to the collector of the paratype deposited in RMNH, The Netherlands, Mr. Robbert de Vries (Leiden) who had an important role in the fieldwork in Vietnam and in preparing the braconid sp...
6 trang | Chia sẻ: yendt2356 | Ngày: 30/11/2020 | Lượt xem: 476 | Lượt tải: 0
SUMMARY DFNB59 is a newly identified gene on chromosome 2q31.1q31.3. The mutations on DFNB59 involved human nonsyndromic deafness. DFNB59 encodes pejvakin, a 352-residue protein. Pejvakin is a paralog of DFNA5, a protein of unknown function of the gasdermin family also involved deafness [3]. In this research, pBluescript II SK was used as the t...
7 trang | Chia sẻ: thucuc2301 | Ngày: 30/11/2020 | Lượt xem: 517 | Lượt tải: 0
Plesiocoelus van Achterberg, 1990 là một giống hiếm gặp trong phân họ Agathidinae thuộc họ ong ký sinh Braconidae. Giống Plesiocoelus được van Achterberg xác lập năm 1990 với một loài, Plesiocoelus bassiformis van Achterberg, 1990, được mô tả từ khu hệ Nam Mỹ (Colombia, Ecuador và Honduras). Dựa trên bộ sưu tập mẫu ong ký sinh hiện có tại Viện S...
6 trang | Chia sẻ: yendt2356 | Ngày: 30/11/2020 | Lượt xem: 519 | Lượt tải: 0
SUMMARY Accurate quantitation of Hepatitis C virus (HCV) RNA level is essential for measurement of active viremia in chronic HCV-infected patients undergoing antiviral therapy. In Vietnam, two molecular assays based on real-time reverse transcription-polymerase chain reaction (RT-PCR) technique are widely used to quantify HCV RNA level: Cobas T...
8 trang | Chia sẻ: thucuc2301 | Ngày: 30/11/2020 | Lượt xem: 559 | Lượt tải: 0
The data presented here indicated that fractions and isolated compound from P. tomentosum had hepatoprotective effect. Et-F possessed a stronger protective effect than that of its subfractions against CCl4 induced toxicity. PTE8 was further studied for isolating pure compound that is quercitrin. This is the first report on the occurrence of ...
9 trang | Chia sẻ: yendt2356 | Ngày: 30/11/2020 | Lượt xem: 463 | Lượt tải: 0
SUMMARY Leptin, a peptide hormone, is produced by mature adipocytes and functions primarily in the hypothalamus in regulating food intake and body metabolism. We have studied the production of recombinant human leptin in the bacterial system Escherichia coli for generating high-quality materials for the study on development of body weight regul...
8 trang | Chia sẻ: thucuc2301 | Ngày: 30/11/2020 | Lượt xem: 515 | Lượt tải: 0
SUMMARY Hypercholesterolemia increases the risk of cardiovascular diseases; therefore controlling blood cholesterol levels is a critical measure to prevent cardiovascular diseases. In recent years, there have been many studies on cholesterol-lowering effect of lactic acid bacteria. In this work, we have screened lactic acid bacteria isolated fr...
7 trang | Chia sẻ: thucuc2301 | Ngày: 30/11/2020 | Lượt xem: 545 | Lượt tải: 0