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Terpenoids and steroids isolated from Calophyllum polyanthum

Research Article of Journal of Pharmaceutical Research and Reviews Terpenoids and steroids isolated from Calophyllum polyanthum CAO Ting-ting1, LI Xua1, YANG Teng-yun2*, LI Dan-dan3* 1School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology of Natural Products, Kunming Medical University, Kunming 650500, Yunnan, PR. China. 2Department of Sports Medicine, The First Affiliated Hospital of Kunming Medical University, Kunming 650032, Yunnan, PR. China. 3The First Affiliated Hospital of Dali University, Dali 671000, Yunnan, PR. China. Three triterpenoids, one diterpenoid and two steroids were isolated from the aerial parts of Calophyllum polyathum. The structures of these compounds were determined by 1D NMR and mass spectroscopic data. Among them, compounds 1, 3, and 4 was obtained for the first time from Calophyllum polyathum. Keywords: Calophyllum polyathum; Guttiferae; Terpenoid; Steroid; Structure elucidation ...

Mesothelial Cyst in a Young Female: Case report and literature review

Case Report of International Journal of Case Reports Mesothelial Cyst in a Young Female: Case report and literature review Thabet Alghazal*1, Anwar Alzahrani2, Shomuk Alshamrani3, Jumanah Felemban4, Abdulwahed Meshikhes5 1King Fahad specialist Hospital-Dammam; 2King Fahad Hospital of the University-Alkhubar; 3Royal commission Hospital- Jubail; 4King Fahad Specialist Hospital-Dammam; 5King Fahad Specialist Hospital -Dammam & AlZahraa Hospital. Mesenteric cysts are rare intra-abdominal benign tumors (1 in 100,000 cases in adults) with various clinical presentations. [1,2] They commonly originate from the small bowel mesentery, although a proportion has been found to originate from the mesocolon, and retroperitoneum. [1,3] The formation of mesenteric cysts depends on the histologic origin, where they could be classified into cysts of lymphatic origin, cysts of mesothelial origin, cysts of enteric origin, cysts of urogenital origin, dermoid cysts and pseudocysts. [4,5] Diagnosis is extremely difficult since. The Mesenteric cyst is usually asymptomatic, but if symptomatic, abdominal pain (82%), nausea and vomiting (45%), constipation (27%) are the most common presenting symptoms. [2,3] The clinical finding of abdominal mass is encountered in more than 61% of the patients. [2,3]. As this condition is very rare and its symptomatology can resemble any other abdominal diseases, diagnosis is extremely difficult and incorrect preoperative diagnosis is often made. Hence, performing physical examination and conducting radiological investigations such as ultrasonography (USG) and computed tomography (CT) are important in making a correct diagnosis. [2,3] As well as cases of mesothelial cysts, they are typically asymptomatic but occasionally, their symptoms are vague and non-specific. [6,7] As mentioned above, imaging modalities such as USG, CT and magnetic resonance imaging (MRI) are great in identifying the character, size, location, surrounding tissues and the wall and content of the cysts. [7] Surgery is the treatment of choice, as a complete resection with negative borders is curative and often prevents recurrence. [3] ...

Determining the location of River Dam Group based on set cover Model: A case study of Zambezi River Basin

Research Article of Scientific Research and Reviews Determining the location of River Dam Group based on set cover Model: A case study of Zambezi River Basin Tianlong Wang1*, Xiaorui Tao2, Dongkun Wu1, Haotian Feng2 1College of Civil Engineering & Architecture, China Three Gorges University, Yichang, 443002, China. 2College of Economics & Management, China Three Gorges University, Yichang, 443002, China Taking the Zambezi River Basin as a typical case, this paper studied the location problem of dam group. Based on the topographical and elevation maps of the Zambezi River Basin, we evaluated each region by five indicators (Water head difference elevation, Geological environment, Climatic environment, Population distribution and Biodiversity), and selected the 22 candidate dam sites. Meanwhile, the relative feasibility index of dam construction is calculated by the entropy weight-grey correlation analysis. On this basis, combined with the water management capacity of the dam, a set coverage model of dam selection is established, and the neighborhood adaptive particle swarm optimization algorithm (NAPSO) is used to solve the 12 most suitable dam sites. Comparing with the water management capacity of the original Kariba Dam, the new dams’ water storage and flood control capacity, hydroelectric power generation capacity, domestic water supply capacity and other water supply capacity have been increased by 235.92%, 250.62%, 189.66% and 223.61% respectively. Our study can provide some guidance for the site selection project of river dam group. Keywords: Dam site selection; Set coverage model; NAPSO; Entropy weight-grey correlation analysis ...

A NEW TYPE-2-LIKE CALR MUTATION IN ESSENTIAL THROMBOCYTHEMIA

Case Report of International Journal of Case Reports A NEW TYPE-2-LIKE CALR MUTATION IN ESSENTIAL THROMBOCYTHEMIA Mattia Brescini, dr, Maria Giovanna Loglisci, biotechnologist, Gioia Colafigli, dr, Luisa Bizzoni, dr, Sonia Buffolino, biologist, Daniela Diverio, biologist, Massimo Breccia, dr, Maurizio Martelli, full professor, Stefania Trasarti, dr* Hematology, Department of Traslational and Precision Medicine, Policlinico Umberto 1, Sapienza University, Rome, Italy. CALR mutations, together with JAK-2 and MPL ones, are recognized as “driver” mutations in Philadelphia-negative chronic myeloproliferative neoplasms (MPNs). Most frequent CALR mutations are Type-1 deletions (45-55% of cases) and type-2 insertion (32-42% of cases). These mutations are usually associated with younger age, higher platelet counts, lower leukocyte counts, lower hemoglobin levels and a higher incidence of transformation from ET to MF. Recognizing and describing cases with different mutations can be useful to create a database that might help clinicians to include these patients in risk categories and to guide the appropriate therapeutic choices. We report a case of a 77-years old woman who presented a new type-2 like CALR mutation. Keywords: CALR; Essential Thrombocythemia; Myeloproliferative Neoplasm ...

The wood decomposition system and community diversity of fungi

Research Article of Advances in Research and Reviews The wood decomposition system and community diversity of fungi Xiaorui Tao1*, Zhongjun Zhu2, Yaobing Ding1, Xinhao Li1 1College of Economics & Management, China Three Gorges University, Yichang, 443002, China. 2College of Literature & Media, China Three Gorges University, Yichang, 443002, China. Fungi are critical agents of the global carbon cycle, however, our ability to link fungal community composition to ecosystem functioning is constrained by a limited understanding the wood decomposition rates of fungus. Here we examined the wood decomposition rate of fungus and the impact of fungal community diversity on the wood decomposing. To understand the relationship between the wood decomposition rate and the traits of fungi, we introduced 37 types of fungus into the wood decomposition system and set the growth rate and moisture tolerance of fungus as the explanatory variables. In addition, we constructed the competition, parasitic and symbiotic model based on Malthus-block growth comprehensive to analyze and predict the interactions between different fungus. The entropy weight-TOPSIS model was established to understand the biodiversity of fungus and obtain the relative dominance degree which can reflect the advantages and disadvantages of different fungus. The ARIMA model was used in five different environments to predict the impact of fungal community diversity on the overall efficiency of wood decomposing. Our research can not only help us to better understand the fungus community, but also significant for improving the quality of climate and the carbon cycle. Keywords: Fungi; Malthus-Retarded growth; Entropy weight-TOPSIS; ARIMA ...

Identifying the Topographic Slope Characteristics Most Preferred By Wild Olive Trees in Al-Bahah Region, Saudi Arabia

Research Article of American Journal of Agricultural Research Identifying the Topographic Slope Characteristics Most Preferred By Wild Olive Trees in Al-Bahah Region, Saudi Arabia Abdullah Saleh Al-Ghamdi Department of Biology, College of Sciences, Al-Bahah University, P.O. Box 400, Al-Baha 31982, Kingdom of Saudi Arabia. The aims of this research were to identify the topographical slope characteristics most preferred by wild olive trees in the Al-Bahah region. This study successfully identified the degree of the slope preferred for wild olive groves. The findings revealed that the majority (72.9%) of wild olive trees in Al-Bahah region occupy slopes of 5–30°. However, the patterns in Qelwa and Al-Mekhwah districts are a bit different where most of the wild olives were found on steeper slopes of 20–40°. This is probably because these sub-regions have a medium to steep slope, descending gradually toward the west, the altitudes ranging from 200 (400) to 2001 and 2200 m west of Al¬-Bahah city and Uwera, and between 2000 and 2100 m west of Baljurashi. The results further depicted that the wild olive with the medium-large crown diameter mostly occupied the gentler slopes of 0–25° compared to those with small crown diameters at steeper slopes of 5–35°. This indicates that the wild olive trees grow better on gentler slopes. These findings can be regarded as theoretically revealing the potential landform suitable for olive plantation. As a basis for olive plantation site suitability, these factors are the essential prerequisites to be considered. However. In addition, it is obvious that site suitability is subject to the temporal dynamics of environmental variables. Keywords:Wild olive tree; Mapping; Extent; Distribution; Al-Bahah region; Remote sensing; Crown size; Slope; Neighboring Species ...