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Soni,Vaishali Walke,Deepti Joshi,Tanya Sharma,Adesh Shrivastava,Amit Agrawal 대한병리학회 2024 Journal of Pathology and Translational Medicine Vol.58 No.3
Background: Primary brain tumors constitute the leading cause of cancer-related mortality. Among them, adult diffuse gliomas are the most common type, affecting the cerebral hemispheres and displaying a diffuse infiltrative pattern of growth in the surrounding neuropil that accounts for about 80% of all primary intracranial tumors. The hallmark feature of gliomas is blood vessel proliferation, which plays an important role in tumor growth, tumor biological behavior, and disease outcome. High-grade gliomas exhibit increased vascularity, the worst prognosis, and lower survival rates. Several angiogenic receptors and factors are upregulated in glioblastomas and stimulate angiogenesis signaling pathways by means of activating oncogenes and/or down-regulating tumor-suppressor genes. Existing literature has emphasized that different microvascular patterns (MVPs) are displayed in different subtypes of adult diffuse gliomas. Methods: We examined the distribution and biological characteristics of different MVPs in 50 patients with adult diffuse gliomas. Haematoxylin and eosin staining results, along with periodic acid–Schiff and CD34 dual-stained sections, were examined to assess the vascular patterns and correlate with different grades of diffuse glioma. Results: The present observational study on adult diffuse glioma evaluated tumor grade and MVPs. Microvascular sprouting was the most common pattern, while a bizarre pattern (type 2) was associated with the presence of a high-grade glioma. Vascular mimicry was observed in 6% of cases, all of which were grade 4 gliomas. Conclusions: This study supplements the role of neo-angiogenesis and aberrant vasculature patterns in the grading and progression of adult diffuse gliomas, which can be future targets for planning treatment strategies.
Traditional uses, phytochemistry and pharmacology of Bauhinia racemosa Lam - a review
Vishal Soni,Arvind Kumar Jha,Jaya Dwivedi,Priyanka Soni 셀메드 세포교정의약학회 2015 TANG Vol.5 No.4
Bahunia racemosa family, Caesalpiniaceae, is one of the precious resources of the earth. It has played a significant role in human civilization since ancient times. It is tall sized tree growing throughout India, Ceylon, China, and Timor. The different part of this plant contains β-sitosterol and β-amyrin, flavonols (kaempferol and quercetin) and two coumarins (scopoletin and scopolin), tannins etc. Various part of this plant has great pharmacological potential with a great utility and usage as folklore medicine as analgesic, antipyretic, anti-inflammatory, antispasmodic and antimicrobial activity. This review mainly focus on the exclusive review work on the traditional, phytochemical and pharmacological activities of this plant.
Traditional uses, phytochemistry and pharmacological profile of Bambusa arudinacea Retz
Vishal Soni,Arvind Kumar Jha,Jaya Dwivedi,Priyanka Soni 셀메드 세포교정의약학회 2013 셀메드 (CellMed) Vol.3 No.3
Bambusa arundinacea family Graminae, is one of the precious plant resources of the earth. It has played a significant role in human civilization since ancient times. It is tall sized tree growing throughout India, moist parts of India. It also occurs in Sri Lanka, Malaya, Peru and Myanmar. The different parts of this plant contain silica, cholin, betain, cynogenetic glycosides, albuminoids, oxalic acid, reducing sugar, resins, waxes, benzoic acid, arginine, cysteine, histidine, niacin, riboflavin, thiamine, protein, gluteline, contains lysine, methionine, betain, cholin, proteolytic enzyme, nuclease, urease. Various parts of this plant such as leaf, root, shoot and seed possess anti-inflammatory, antiulcer, anti-diabetic, anti-oxidant, anthelmintic, antifertility, antibacterial, insectisidal, antiarthritic, vessele protection etc. This review mainly focuses on the traditional, phytochemical and pharmacological information of Bambusa arundinacea.
Sony Shrestha,Yoonseong Park,Yonggyun Kim 한국응용곤충학회 2008 한국응용곤충학회 학술대회논문집 Vol.2008 No.05
Phospholipase A2 (PLA2) is the committed catalytic step of eicosanoid biosynthesis, which has been a common molecular target of several entomopathogens to induce insect immunosuppression. Despite critical importance of PLA2 in insect immunity, its gene structure was not known. This study identified insect PLA2 gene associated with immune reactions in the red flour beetle, Tribolium castaneum. Based on a previous study that an immune-associated PLA2 in insect is secretory type of PLA2 (sPLA2), five highly matched cDNA sequences were obtained from T. castaneum genome database using an sPLA2 sequence probe encoded in Drosophila melanogaster. The expressions of these five putative PLA2 were confirmed by reverse transcriptase-polymerase chain reaction. Out of five genes, one PLA2 gene called TcPLA2B was chosen because it showed specific expression in hemocyte and fat body. TcPLA2B was cloned and expressed in Escherichia coli and its protein was purified. The purified TcPLA2B showed PLA2enzyme activity, which was specifically inhibited by bromophenacyl bromide (a specific sPLA2inhibitor) and dithiothreitol (reducing agent of disulfide bond). It was sensitive to pH (optimum at pH 6.0) and reaction temperature (optimum at 10-30°C), and calcium dependency. An immunofluorescence assay indicated that TcPLA2B was localized near to cellular membrane of the cytosol in the hemocytes of T. castaneum at immune chanlenge. Double-stranded RNA (dsRNA) of TcPLA2B-treated larvae showed knockdown of its mRNA expression and did not form hemocyte nodule formation, while control larvae could exhibit time- and bacterial dose-dependent nodule formation in response to bacterial challenge. Addition of arachidonic acid (the catalytic product of PLA2) to the dsRNA-treated larvae rescued the inhibition of nodule formation. These results suggest that TcPLA2B gene is associated with insect immune reaction.
Sony Shrestha,Yonggyun Kim 한국응용곤충학회 2009 한국응용곤충학회 학술대회논문집 Vol.2009 No.05
An entomopathogenic bacterium, Xenorhabdus nematophila, induces an immunosuppression by inhibiting phospholipase A2 (PLA2), which results in a fatal septicemia. PLA2 is an enzyme responsible for eicosanoid biosynthesis and the pathogenic molecular target of this bacterium. A PLA2 gene of the red flour beetle, Tribolium castaneum, was expressed in Escherichia coli. The recombinant T. castaneum PLA2 (TcPLA2) showed enzyme activity, which was specifically inhibited by bromophenacyl bromide (specific inhibitor to secretory PLA2) and ditheothreitol (reducing agent of disulfide bond). It was sensitive to pH (optimum at pH 7.0), temperature (optimum at 30°C), substrate specificity and calcium dependency. X. nematophila released compound(s) inhibiting TcPLA2during its stationary growth phase. The active compound (s) was resistant to heat treatment and could be extracted separately into both organic and aqueous phases. This PLA2 inhibitory fraction showed significant effect on immunosuppression of T. castaneum. These results suggest there may be several PLA2 inhibitors synthesized by X. nematophila and released into culture broth. The recombinant TcPLA2 was also used to screen potent PLA2 inhibitor compounds, which were designed based on a common chemical structure (a pentenebenzene ring) of two peptide inhibitors, proline-tyrosine (PY) and acetylated phenylalanine-glycine-valine (AcFGV). Alterations were made on amino acid sequence or specific functional groups on the pentenebenzene ring. Among 7 different peptides, AY and FGV showed the most potent effects on TcPLA2activity and also resulted in significant reductions in hemocyte spreading behavior of Plutella xylostella. The potent candidate molecules would be applied to control various insect pests to be developed into novel insecticides.
Soni, Ramesh Chandra,Wiseman, Monica Department of Mathematics 2010 Kyungpook mathematical journal Vol.50 No.2
In the present paper, we obtain a new formula for the generalized Weyl differintegral operator in a compact form avoiding the occurrence of infinite series and thus making it useful in applications. Our findings provide interesting generalizations and unifications of the results given by several authors and lying scattered in the literature.
The Inverse Laplace Transform of a Wide Class of Special Functions
SONI, RAMESH CHANDRA,SINGH, DEEPIKA 대한수학회 2006 Kyungpook mathematical journal Vol.46 No.1
The aim of the present work is to obtain the inverse Laplace transform of the product of the factors of the type ◁수식 삽입▷(원문을 참조하세요), a general class of polynomials and the multivariable H-function. The polynomials and the functions involved in our main formula as well as their arguments are quite general in nature. On account of the general nature of our main findings, the inverse Laplace transform of the product of a large variety of polynomials and numerous simple special functions involving one or more variables can be obtained as simple special cases of our main result. We give here exact references to the results of seven research papers that follow as simple special cases of our main result.
The Inverse Laplace Transform of a Wide Class of Special Functions
Soni, Ramesh Chandra,Singh, Deepika Department of Mathematics 2006 Kyungpook mathematical journal Vol.46 No.1
The aim of the present work is to obtain the inverse Laplace transform of the product of the factors of the type $s^{-\rho}\prod\limit_{i=1}^{\tau}(s^{li}+{\alpha}_i)^{-{\sigma}i}$, a general class of polynomials an the multivariable H-function. The polynomials and the functions involved in our main formula as well as their arguments are quite general in nature. On account of the general nature of our main findings, the inverse Laplace transform of the product of a large variety of polynomials and numerous simple special functions involving one or more variables can be obtained as simple special cases of our main result. We give here exact references to the results of seven research papers that follow as simple special cases of our main result.