67 results on '"Srivastava RP"'
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2. Saponins and Lectins of Indian Chickpeas (Cicer arietinum) and Lentils (Lens culinaris)
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Srivastava, RP and Vasishtha, Hina
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- 2012
3. Changes in Lipids and Fatty Acids during Soaking and Germination of Chickpea (Cicer arietinum)
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Vasishtha, Hina and Srivastava, RP
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- 2012
4. Impact of Cut to Crush Delay and Bio-chemical Changes in Sugarcane
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Saxena, Priyanka, Srivastava, RP, and Sharma, ML
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- 2010
5. The 2017 Academic College of Emergency Experts and Academy of Family Physicians of India position statement on preventing violence against health - care workers and vandalization of health - care facilities in India
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Chauhan, Vivek, primary, Galwankar, Sagar, additional, Kumar, Raman, additional, Raina, SunilKumar, additional, Aggarwal, Praveen, additional, Agrawal, Naman, additional, Krishnan, SVimal, additional, Bhoi, Sanjeev, additional, Kalra, OP, additional, Soans, SantoshT, additional, Aggarwal, Vandana, additional, Kubendra, Mohan, additional, Bijayraj, R, additional, Datta, Sumana, additional, and Srivastava, RP, additional
- Published
- 2017
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6. The 2017 International Joint Working Group white paper by INDUSEM, The Emergency Medicine Association and The Academic College of Emergency Experts on establishing standardized regulations, operational mechanisms, and accreditation pathways for education and care provided by the prehospital emergency medical service systems in India
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Sikka, Veronica, primary, Gautam, V, additional, Galwankar, Sagar, additional, Guleria, Randeep, additional, Stawicki, StanislawP, additional, Paladino, Lorenzo, additional, Chauhan, Vivek, additional, Menon, Geetha, additional, Shah, Vijay, additional, Srivastava, RP, additional, Rana, BK, additional, Batra, Bipin, additional, Kalra, OP, additional, Aggarwal, P, additional, Bhoi, Sanjeev, additional, and Krishnan, SVimal, additional
- Published
- 2017
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7. Milling, roasting and cooking effect on neurotoxin and other anti-nutrients of lathyrus (Lathyrus sativus)
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Srivastava, RP, primary, Singh, J, additional, Singh, Deepak, additional, Gupta, S, additional, and Singh, NP, additional
- Published
- 2015
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8. Message from the president of ASI--2009.
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Srivastava RP
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- 2009
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9. Continuous emission monitoring systems (CEMS) in India: Performance evaluation, policy gaps and financial implications for effective air pollution control.
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Srivastava RP, Kumar S, and Tiwari A
- Subjects
- India, Air Pollution prevention & control, Air Pollution analysis, Environmental Monitoring methods, Air Pollutants analysis
- Abstract
Continuous Emission Monitoring Systems (CEMS) are devices used to measure and report real-time emission of air pollutants. Although CEMS have been extensively deployed in developed countries to ensure compliance with emission standards and enhance their environmental performance, their adoption in India is still in its early stages. The present study aims to evaluate the effectiveness of CEMS in India, identify obstacles in terms of policy, regulation, technology and finance that impede their adoption and suggest mechanisms and incentives to facilitate their expansion. The findings indicate that CEMS offer benefits for air pollution control in India by improving monitoring accuracy, transparency, accountability and enforcement. The study also highlights institutional challenges faced by CEMS, including the absence of a certification system, lack of quality assurance measures, issues with data validation and challenges in its calibration as well as integration concerns with existing regulatory framework. To address these challenges effectively it is recommended that India must develop a policy framework for CEMS along with regulations. Essential steps such as establishing a certification and accreditation system should be taken while enhancing stakeholders' capacity and awareness., Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Ashish Tiwari reports a relationship with Uttar Pradesh Climate Change Authority Directorate of Environment Vineet Khand-6, Gomti Nagar, Lucknow, Uttar Pradesh 226,010 that includes: employment. NA If there are other authors, they declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier Ltd. All rights reserved.)
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- 2024
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10. EUS-guided enteroenterostomy to facilitate peroral altered anatomy ERCP.
- Author
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Srivastava RP, Moran RA, and Elmunzer BJ
- Abstract
Competing Interests: The authors did not disclose any financial relationships.
- Published
- 2023
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11. Serum Amylase as a Biomarker for Proof-of-Concept Studies in Post Endoscopic Retrograde Cholangiopancreatography Pancreatitis Prevention.
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Srivastava RP, Nietert PJ, Bobo JFG, Haj M, Forbes N, and Elmunzer BJ
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- Humans, Risk Factors, Biomarkers, Amylases, Cholangiopancreatography, Endoscopic Retrograde adverse effects, Pancreatitis diagnosis, Pancreatitis etiology, Pancreatitis prevention & control
- Published
- 2023
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12. Major phenolic compounds, antioxidant, antimicrobial, and cytotoxic activities of Selinum carvifolia (L.) collected from different altitudes in India.
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Srivastava RP, Kumar S, Singh L, Madhukar M, Singh N, Saxena G, Pandey S, Singh A, Devkota HP, Verma PC, Shiva S, Malik S, and Rustagi S
- Abstract
Antibiotic resistance poses a serious threat to public health, raising the number of diseases in the community. Recent research has shown that plant-derived phenolic compounds have strong antimicrobial, antifungal, and cytotoxic properties against a variety of microorganisms and work as great antioxidants in such treatments. The goal of the current work is to evaluate the anticancerous, antibacterial, antifungal, antioxidant, and cytotoxicity activities in the extracts of the different plant parts (leaves, stems, and roots) of S. carvifolia (L.) L. This is a medicinally important plant and has been used for different kinds of diseases and ailments such as hysteria and seizures. The phenolic compounds from the different plant parts were analyzed using HPLC and the following were found to be present: chlorogenic acid, gallic acid, rutin, syringic acid, vanillic acid, cinnamic acid, caffeic acid, and protocatechuic acid. Gallic acid was found to have the highest concentration (13.93 mg/g), while chlorogenic acid (0.25 mg/g) had the lowest. The maximum TPC value, which ranged from 33.79 to 57.95 mg GAE/g dry extract weight, was found in the stem. Root extract with 9.4 mg RE/g had the greatest TFC level. In the leaf and stem extracts, the RSC ranged from 0.747 mg/mL to 0.734 mg/1 mL GE/g dry extract weight, respectively. The 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay was used to measure in vitro antioxidant activity. In a concentration-dependent way, promising antioxidant activity was reported. Moreover, 3,5-dinitrosalicylic acid (DNSA) and the Folin-Ciocalteu phenol reagent technique were used to determine reducing sugar content and total phenolic content, respectively. Antibacterial activity against eight strains (MIC: 250-1,000 μg/mL) was analyzed, and the stem extract exhibited maximum activity. Antifungal activity was also assessed, and potent activity was reported especially in the extract obtained from the stem. Cytotoxicity was evaluated using an MTT assay in the A549 cell line, where different doses (0.0625, 0.125, 0.25, 0.5, and 1 mg/mL) of leaf, root, and stem extracts were used. Treatment with these extracts reduced the cell viability, indicating that S. carvifolia may possess anticancer potential, which can be of great therapeutic value., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2023 Srivastava, Kumar, Singh, Madhukar, Singh, Saxena, Pandey, Singh, Devkota, Verma, Shiva, Malik and Rustagi.)
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- 2023
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13. Novel cost-effective design for bio-volatilization studies in photosynthetic microalgae exposed to arsenic with emphasis on growth and glutathione modulation.
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Upadhyay AK, Mallick S, Singh R, Singh L, Singh N, Mandotra SK, Singh A, Srivastava RP, Pandey S, and Saxena G
- Abstract
A novel laboratory model was designed to study the arsenic (As) biotransformation potential of the microalgae Chlorella vulgaris and Nannochloropsis sp. and the cyanobacterium Anabaena doliolum . The Algae were treated under different concentrations of As(III) to check their growth, toxicity optimization, and volatilization potential. The results revealed that the alga Nannochloropsis sp. was better adopted in term of growth rate and biomass than C. vulgaris and A. doliolum. Algae grown under an As(III) environment can tolerate up to 200 μM As(III) with moderate toxicity impact. Further, the present study revealed the biotransformation capacity of the algae A. doliolum , Nannochloropsis sp., and Chlorella vulgaris . The microalga Nannochloropsis sp. volatilized a large maximum amount of As (4,393 ng), followed by C. vulgaris (4382.75 ng) and A. doliolum (2687.21 ng) after 21 days. The present study showed that As(III) stressed algae-conferred resistance and provided tolerance through high production of glutathione content and As-GSH chemistry inside cells. Thus, the biotransformation potential of algae may contribute to As reduction, biogeochemistry, and detoxification at a large scale., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2023 Upadhyay, Mallick, Singh, Singh, Singh, Mandotra, Singh, Srivastava, Pandey and Saxena.)
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- 2023
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14. The industrially important genus Kaempferia : An ethnopharmacological review.
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Singh A, Singh N, Singh S, Srivastava RP, Singh L, Verma PC, Devkota HP, Rahman LU, Kumar Rajak B, Singh A, and Saxena G
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Kaempferia , a genus of the family Zingiberaceae, is widely distributed with more than 50 species which are mostly found throughout Southeast Asia. These plants have important ethnobotanical significance as many species are used in Ayurvedic and other traditional medicine preparations. This genus has received a lot of scholarly attention recently as a result of the numerous health advantages it possesses. In this review, we have compiled the scientific information regarding the relevance, distribution, industrial applications, phytochemistry, ethnopharmacology, tissue culture and conservation initiative of the Kaempferia genus along with the commercial realities and limitations of the research as well as missing industrial linkages followed by an exploration of some of the likely future promising clinical potential. The current review provides a richer and deeper understanding of Kaempferia , which can be applied in areas like phytopharmacology, molecular research, and industrial biology. The knowledge from this study can be further implemented for the establishment of new conservation strategies., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2023 Singh, Singh, Singh, Srivastava, Singh, Verma, Devkota, Rahman, Kumar Rajak, Singh and Saxena.)
- Published
- 2023
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15. Ethnomedical Applications and Conservation Status of Leguminosae- Caesalpinioideae Plants in Uttar Pradesh, India.
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Pandey S, Singh L, Srivastava RP, Kushwaha AK, Dixit P, Saxena G, and Chaudhary LB
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- Ethnopharmacology, Ethnobotany, Phytotherapy, Health Knowledge, Attitudes, Practice, Patents as Topic, India, Plants, Medicinal chemistry, Fabaceae
- Abstract
Background: This review highlights the folklore, ethnomedicinal uses and conservation status of Caesalpinioideae in Uttar Pradesh (India)., Aims: It aims at compiling available data on traditional medicine, biological activity, phytochemical information and assessing the regional red list status of Caesalpinioideae in Uttar Pradesh. The information provided would help in formulating new drugs and medicines and addressing global conservation issues of such medicinally exploited species., Methods: The current study included an extensive and systematic review of available literature, the study of previous collections of herbarium specimens, random interviews with locals and tribals, field surveys, and GeoCAT tool-based assessment during 2016-2020. The study reports that the majority of species of Caesalpinioideae are used for curing digestive problems (about 20 species) and skin diseases (19 species)., Results: Almost all the species have antimicrobial and antioxidant properties. These pharmacological activities can be attributed to the presence of various types of anthraquinones in plants., Conclusion: The regional conservation status reveals that eight species qualified for the status of regionally threatened category while two species fall under the near threatened category., (Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.net.)
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- 2023
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16. A Glance at the Phytochemical and Ethno-pharmacological Understanding of Four Ocimum Species.
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Jahanger MA, Patra KK, Kumari S, Singh A, Manika N, Srivastava RP, Saxena G, and Singh L
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- Phytochemicals pharmacology, Phytochemicals therapeutic use, Plant Extracts pharmacology, Plant Extracts therapeutic use, Ocimum, Ocimum basilicum, Oils, Volatile pharmacology, Oils, Volatile therapeutic use, Anti-Infective Agents
- Abstract
The genus Ocimum comprises many species widely cultivated in different parts of the world for their pharmaceutical, neutraceutical and other commercial importance. Many biological activities such as antimicrobial, cytotoxic, anti-nociceptive, anti-inflammatory, hypoglycaemic, hepatoprotective and antioxidant have been ascribed to Ocimum , which can be linked to the occurrence of biologically active phytochemicals like phenolic acids, essential oil, flavonoids, and terpenes hence making it a potential source for discovery and development of novel drugs. The present review covers the successive advances in the traditional medicinal aspects, phytochemistry, bioactivities and the bioavailability of four Ocimum species, i.e., Ocimum basilicum L., Ocimum sanctum L., Ocimum gratissimum L. and Ocimum tenuiflorum L., to explore their applications in versatile industries. Furthermore, this thorough compilation will be used as a potential resource for further Ocimum -related medication development and research and to identify the research gaps to fill., (Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.net.)
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- 2023
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17. Transfer-Printed Cuprous Iodide (CuI) Hole Transporting Layer for Low Temperature Processed Perovskite Solar Cells.
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Srivastava RP, Jung HS, and Khang DY
- Abstract
Perovskite solar cells (PSCs) have achieved significantly high power-conversion efficiency within a short time. Most of the devices, including those with the highest efficiency, are based on a n-i-p structure utilizing a (doped) spiro-OMeTAD hole transport layer (HTL), which is an expensive material. Furthermore, doping has its own challenges affecting the processing and performance of the devices. Therefore, the need for low-cost, dopant-free hole transport materials is an urgent and critical issue for the commercialization of PSCs. In this study, n-i-p structure PSCs were fabricated in an ambient environment with cuprous iodide (CuI) HTL, employing a novel transfer-printing technique, in order to avoid the harmful interaction between the perovskite surface and the solvents of CuI. Moreover, in fabricated PSCs, the SnO
2 electron transport layer (ETL) has been incorporated to reduce the processing temperature, as previously reported (n-i-p) devices with CuI HTL are based on TiO2 , which is a high-temperature processed ETL. PSCs fabricated at 80 °C transfer-printing temperature with 20 nm iodized copper, under 1 sun illumination showed a promising efficiency of 8.3%, (JSC and FF; 19.3 A/cm2 and 53.8%), which is comparable with undoped spiro-OMeTAD PSCs and is the highest among the ambient-environment-fabricated PSCs utilizing CuI HTL.- Published
- 2022
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18. Interspecific and intraspecific analysis of Selinum spp. collected from Indian Himalayas using DNA barcoding.
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Srivastava RP, Saxena G, Singh L, Singh A, Verma PC, and Kaur G
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Background: DNA barcoding is a powerful method for phylogenetic mapping and species identification. However, recent research has come to a consistent conclusion about the universality of DNA barcoding. We used matK and rbcL markers to test the universality of twelve accessions from different locations belonging to two Selinum species, Selinum tenuifolium Wall. C. B. Clarke and Selinum vaginatum C. B. Clarke, keeping in mind their ability to identify species and establish phylogenetic relationships within and between the accessions., Results: The success rates of PCR amplification using matK and rbcL were 75.26% ± 3.65% and 57.24% ± 4.42%, and the rate of DNA sequencing was 63.84% ± 4.32% and 50.82% ± 4.36%, respectively, suggesting that success rates of species identification of the two fragments were higher than 41.00% (matK, 41.50% ± 2.81%; rbcL, 42.88% ± 2.59%), proving that these fragments might be used to identify species. The best evolutionary tree with good supporting values was produced utilizing combinations of matK + rbcL markers when phylogenetic relationships were built with random fragment combinations. The twelve accessions of Selinum collected from different locations and their molecular sequences of matK and rbcL markers were blasted with other genera of Apiaceae family, and it was found that Selinum is most closely related to Angelica species of Apiaceae family., Conclusion: The present study has grouped twelve accessions of Selinum species using molecular markers into phylogenies, which is first-of-its-kind report that established interrelationships within different species of Apiaceae with respect to Selinum., (© 2022. The Author(s).)
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- 2022
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19. A Review of Chemistry and Pharmacology of Piperidine Alkaloids of Pinus and Related Genera.
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Singh L, Upadhyay AK, Dixit P, Singh A, Yadav D, Chhavi A, Konar S, Srivastava RP, Pandey S, Devkota HP, Verma PC, and Saxena G
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- Piperidines chemistry, Piperidines pharmacology, Plant Extracts chemistry, Plant Extracts pharmacology, Alkaloids chemistry, Alkaloids pharmacology, Pinus chemistry
- Abstract
Background: Pinus belongs to the family Pinaceae, represented by several species across the globe. Various parts of the plant including needles are rich in biologically active compounds, such as thunbergol, 3-carene, cembrene, α-pinene, quercetin, xanthone. Of all the alkaloids, the piperidine group is one of the important component and holds considerable medicinal importance., Methods: The group of alkaloids was initially identified from the genus Piper through which a large variety of piperidine molecules have been extracted. The planar structure of this heterocyclic nucleus enables acetamide groups to be added at various ring configurations., Results: Piperidines have gained considerable importance. The broad range of its therapeutic application has paved a way for researchers to implant the nucleus from time to time in diversified pharmacophores and establish new profile., Discussion: Biological functions of piperidine metabolites have been mostly examined on a limited scale, and that most of the findings are preliminary. We have tried to present various clinical applications of piperidine alkaloids in this study that researchers have already attempted to demystify with time., Conclusion: We have also illustrated different types of piperidine structures and their sources in different members of the family Pinaceae with special emphasis on Pinus. Given the importance of the piperidine nucleus, the study will enable the researchers to produce scaffolds of highest therapeutic efficacy., (Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.net.)
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- 2022
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20. Structuring of Si into Multiple Scales by Metal-Assisted Chemical Etching.
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Srivastava RP and Khang DY
- Abstract
Structuring Si, ranging from nanoscale to macroscale feature dimensions, is essential for many applications. Metal-assisted chemical etching (MaCE) has been developed as a simple, low-cost, and scalable method to produce structures across widely different dimensions. The process involves various parameters, such as catalyst, substrate doping type and level, crystallography, etchant formulation, and etch additives. Careful optimization of these parameters is the key to the successful fabrication of Si structures. In this review, recent additions to the MaCE process are presented after a brief introduction to the fundamental principles involved in MaCE. In particular, the bulk-scale structuring of Si by MaCE is summarized and critically discussed with application examples. Various approaches for effective mass transport schemes are introduced and discussed. Further, the fine control of etch directionality and uniformity, and the suppression of unwanted side etching are also discussed. Known application examples of Si macrostructures fabricated by MaCE, though limited thus far, are presented. There are significant opportunities for the application of macroscale Si structures in different fields, such as microfluidics, micro-total analysis systems, and microelectromechanical systems, etc. Thus more research is necessary on macroscale MaCE of Si and their applications., (© 2021 Wiley-VCH GmbH.)
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- 2021
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21. A comparative analysis of Acuros XB and the analytical anisotropic algorithm for volumetric modulation arc therapy.
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Srivastava RP, Basta K, De Gersem W, and De Wagter C
- Abstract
Background: This study aimed to verify the dosimetric impact of Acuros XB (AXB) (AXB, Varian Medical Systems Palo Alto CA, USA), a two model-based algorithm, in comparison with Anisotropic Analytical Algorithm (AAA ) calculations for prostate, head and neck and lung cancer treatment by volumetric modulated arc therapy (VMAT ), without primary modification to AA. At present, the well-known and validated AA algorithm is clinically used in our department for VMAT treatments of different pathologies. AXB could replace it without extra measurements. The treatment result and accuracy of the dose delivered depend on the dose calculation algorithm., Materials and Method: Ninety-five complex VMAT plans for different pathologies were generated using the Eclipse version 15.0.4 treatment planning system (TPS). The dose distributions were calculated using AA and AXB (dose-to-water, AXB
w and dose-to-medium, AXBm ), with the same plan parameters for all VMAT plans. The dosimetric parameters were calculated for each planning target volume (PTV) and involved organs at risk (OA R). The patient specific quality assurance of all VMAT plans has been verified by Octavius® -4D phantom for different algorithms., Results: The relative differences among AA, AXBw and AXBm , with respect to prostate, head and neck were less than 1% for PTV D95% . However, PTV D95% calculated by AA tended to be overestimated, with a relative dose difference of 3.23% in the case of lung treatment. The absolute mean values of the relative differences were 1.1 ± 1.2% and 2.0 ± 1.2%, when comparing between AXBw and AA, AXBm and AA, respectively. The gamma pass rate was observed to exceed 97.4% and 99.4% for the measured and calculated doses in most cases of the volumetric 3D analysis for AA and AXBm , respectively., Conclusion: This study suggests that the dose calculated to medium using AXBm algorithm is better than AAA and it could be used clinically. Switching the dose calculation algorithm from AA to AXB does not require extra measurements., Competing Interests: Conflict of interest None declared., (© 2021 Greater Poland Cancer Centre.)- Published
- 2021
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22. Ethnobotany and Pharmacology of Pinus Species Growing Naturally in Indian Himalayas: A Plant Review.
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Singh L, Dixit P, Srivastava RP, Pandey S, Verma PC, and Saxena G
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- Altitude, Bicyclic Monoterpenes isolation & purification, Ethnobotany, Flavonoids isolation & purification, Humans, India, Phenols isolation & purification, Phytotherapy, Plant Extracts isolation & purification, Plant Leaves chemistry, Plant Leaves growth & development, Species Specificity, Tannins isolation & purification, Pinus chemistry, Pinus growth & development, Plant Extracts pharmacology, Plants, Medicinal chemistry, Plants, Medicinal growth & development
- Abstract
Pinus species are amongst the most commonly used medicinal plants in Indian Northwestern Himalayas. Nearly all parts of the plant especially needles are believed to possess medicinal and clinical values in traditional systems of medicine such as Ayurvedic, Unani or Homeopathic. They are used to heal numerous diseases, including afflictions of the skin, eyes, throats and ears. Various parts of the plant including needles are rich in biologically active compounds, such as thunbergol, 3-carene, cembrene, α-pinene, quercetin, xanthone, etc. The scientific data available for the biological potential of this plant and its constituents have been found to be scanty and also does not satisfy the basis of their age-old folklore and local uses. This review focuses on a detailed analysis of ethnopharmacognosical studies on the needles of different Pinus species growing naturally in northwestern region of Indian Himalayas including investigations and findings that have come up with a concrete view of the abilities of plant components for example phenolics, flavonoids, tannins and other constituents to treat oxidative, inflammatory and microbial responses. Careful evaluation of the data presented may be helpful for the researchers to discover and evaluate the specific chemical entities responsible for the traditional medicinal uses of P. roxburghii, P.wallichiana, P. merkusii, P.kesiya and P.thunbergii., (Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.net.)
- Published
- 2019
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23. Status of Selinum spp. L. a Himalayan Medicinal Plant in India: A Review of Its Pharmacology, Phytochemistry and Traditional Uses.
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Srivastava RP, Dixit P, Singh L, Verma PC, and Saxena G
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- Apiaceae growth & development, Epilepsy drug therapy, Humans, Hysteria drug therapy, India, Plant Extracts isolation & purification, Plants, Medicinal, Apiaceae chemistry, Medicine, Traditional, Phytotherapy methods, Plant Extracts pharmacology
- Abstract
There is a growing trend of herbal medicines in India as well as other parts of the world. The use of herbal medicines alone or alongside prescription drugs for disease management is quite common now. We hereby carry out a review of dominant species of Selinum mainly S. vaginatum C.B. Clarke and S. wallichianum (DC.) Raizada & H.O. Saxena which are potent source of herbal medicine and whose potential is still not exploited. They are found in Northern Himalayas in the states of Kashmir, Himachal Pradesh and Uttarakhand in India, and also distributed in adjoining countries like China, Nepal, and West Pakistan. It is a perennial, primitive, high altitude, therapeutic herbal plant belonging to family Apiaceae (Umbelliferae) traditionally used for various diseases like epilepsy, seizures, and hysteria, etc. The aim of this review was to provide a summary on botanical characterization, traditional uses, phytochemistry and pharmacological activity of Selinum spp. The available information will be further tapped for commercial use of this plant without endangering its status. Based on the available evidence on the species pharmacology and chemistry, we highlight in which their therapeutic potential can be properly harnessed for possible integration into the country's healthcare system and be further passed on globally., (Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.net.)
- Published
- 2018
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24. The leadership crisis in the medical profession in India: What's to blame?
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Gupta U, Harsh V, Kumar A, and Srivastava RP
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- 2016
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25. Effect of dehusking and cooking on protein and dietary fibre of different genotypes of desi, kabuli and green type chickpeas (Cicer arietinum).
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Vasishtha H, Srivastava RP, and Verma P
- Abstract
Dehusking and cooking are essential and important component of processing of chickpea to enhance the digestibility of essential nutrients of grains. Protein and dietary fibres are important due to their role in lowering plasma cholesterol and other health advantages. Changes during dehusking and dehusking followed by cooking on soluble protein, cellulose, hemicellulose, lignin and pectin contents of four genotypes of desi type (BG 256, JG 74, KWR 108 and DCP 92-3), four genotypes of kabuli type (BG 1053, KAK 2, JKG 1 and L 550) and two genotypes of green type (Sadabahar and BDG 112) of chickpeas (Cicer arietinum) were studied. The cellulose, hemicellulose and lignin of grain decreased to an extent of 21.6 %, 29.6 % and 27.3 % respectively on dehusking, whereas pectin recorded an increase of 26.2 % on dehusking. The cooking of dehusked grain registered a marginal increase in cellulose, lignin and pectin, but a decrease in hemicellulose content. The soluble protein recorded an increase of 21.3 % on dehusking and 26.6 % increase on cooking, as compared to unprocessed grain.
- Published
- 2014
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26. Effect of soaking and cooking on dietary fibre components of different type of chickpea genotypes.
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Vasishtha H and Srivastava RP
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Processing is an important and essential component to enhance the digestibility of essential nutrients of grains. Dietary fibres play an important role in bringing health advantages in chickpea and help in lowering plasma cholesterol. Changes during soaking and soaking followed by cooking on cellulose, hemicellulose, lignin and pectin contents of four genotypes of desi type (KWR 108, JG 74, DCP 92-3 and BG 256), four genotypes of kabuli types (KAK 2, JKG 1, BG 1053, and L 550) and two genotypes of green seed type (BGD 112 and Sadabahar) of chickpeas (Cicer arietinum, L.) was studied. Cellulose, lignin and pectin increased during soaking and cooking, whereas hemicellulose increased during soaking but decreased drastically during cooking. Cellulose recorded an overall increase of 40% during cooking, followed by 15.7% and 15.2% increase in pectin and lignin, respectively during cooking of chickpea grain. Hemicellulose, on the contrary showed a decrease of 26.8% during cooking.
- Published
- 2013
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27. A method of increasing the film intrinsic robustness of radiochromic film dosimetry.
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Ebongue AN, Srivastava RP, Kwato Njock MG, and De Wagter C
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- Artifacts, Film Dosimetry instrumentation, Film Dosimetry methods
- Abstract
The radiochromic film, which is used, in combination with a flatbed scanner has become a widely used tool for a quantitative evaluation of radiation dose in radiation therapy. One aspect of uncertainty using the radiochromic film is the magnitude of orientation effects when the orientation of the film is not kept constant during the digitization process. The aim of this note was to investigate the impact of using a combination of two crossed sheets of EBT2 film on various aspects of radiochromic film dosimetry. First the impact on the film sensitivity was studied. We also investigated the influence on orientation effects during scanning. The results show that the double crossed film combination increases the sensitivity with a factor 1.7-2.1 and practically eliminates the effects of film orientation on the optical density read-out and the lateral correction profiles.
- Published
- 2012
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28. The effects of incidence angle on film dosimetry and their consequences in IMRT dose verification.
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Srivastava RP and De Wagter C
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- Calibration, Phantoms, Imaging, Radiotherapy Dosage, Film Dosimetry methods, Radiation Dosage, Radiotherapy, Intensity-Modulated methods
- Abstract
Purpose: The dosimetric accuracy of EDR2 radiographic film has been rigorously assessed in regular and intensity modulated beams for various incidence angles, including the parallel and perpendicular orientation. There clearly exists confusion in literature regarding the effect of film orientation. The primary aim is to clarify potential sources of the confusion and to gain physical insight into the film orientation effect with a link to radiochromic film as well., Methods: An inverse pyramid IMRT field, consisting of six regular and elongated 3 × 20 cm(2) field segments, was studied in perpendicular and parallel orientation. Assessment of film self-perturbation and intrinsic directional sensitivity were also included in the experiments. Finally, the authors investigated the orientational effect in composite beams in the two extreme orientations, i.e., perpendicular and parallel., Results: The study of an inverse pyramid dose profile revealed good agreement between the perpendicular film and the diamond detector within 0.5% in the low-scatter regions for both 6 and 18 MV. The parallel oriented film demonstrated a 3% under-response at 5-cm (6 MV) depth against the perpendicular orientation, but both orientations over responded equally in the central region, which received only scattered dose, at both 5- and 20-cm depths. In a regular 6-MV 5 × 5 cm(2) field, a 4.1% lower film response was observed in the parallel orientation compared to perpendicular orientation. The under response gradually increased to 6% when reducing the field size to 0.5 × 5 cm(2). On the other hand, the film showed a 1.7% lower response in parallel orientation for the large field size of 20 × 20 cm(2) at 5-cm depth but the difference disappeared at 10 cm. At 18 MV, similar but somewhat lower differences were found between the two orientations. The directional sensitivity of the film diminishes with increasing field size and depth. Surprisingly a composite IMRT beam consisting of 20 adjacent strip segments also produced a significant orientational dependence of film response, notwithstanding the large total field size of 20 × 20 cm(2)., Conclusions: This analysis allowed the development of a hypothesis about the physics behind the orientational dependence of film response in general and to formulate precautions when using film dosimetry in the dosimetric verification of multibeam treatments.
- Published
- 2012
- Full Text
- View/download PDF
29. Evaluation of a glassless photographic film scanner for high-gradient radiochromic film dosimetry.
- Author
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De Puysseleyr A, Srivastava RP, Paelinck L, De Neve W, and De Wagter C
- Subjects
- Artifacts, Film Dosimetry methods, Photography methods
- Abstract
This study evaluates the performance of the Nikon Coolscan 9000 ED film scanner for high-gradient radiochromic film dosimetry. As a reference for comparison, analogue experiments were performed on the Epson Expression 10000XL flatbed scanner. Based on these results, a dosimetric protocol was established for the Nikon scanner and its overall performance for high-gradient dosimetry was evaluated. The Nikon scanner demonstrated a high sensitivity for radiochromic film dosimetry, resulting in more contrast in the digitized image. The scanner's optics also demonstrated excellent stability and did not necessitate warm-up scans prior to data acquisition. Moreover, negative effects of temperature changes of the film inside the scanner were shown to be limited. None of the digitized images showed significant disturbances by moiré-patterns, by virtue of the absence of a glass plate for film positioning. However, scanner response was found to vary considerably across the reading area, requiring an optical density-dependent correction procedure to be incorporated into the scanning protocol. The main limitation of the Nikon Coolscan 9000 ED transmission scanner remains its film size restriction to 6.2 × 20 cm2. Nevertheless, its excellent characteristics render it the preferential tool for high-gradient radiochromic film dosimetry in applications limited to small film sizes, such as dosimetry in the build-up region.
- Published
- 2012
- Full Text
- View/download PDF
30. The value of EDR2 film dosimetry in compensator-based intensity modulated radiation therapy.
- Author
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Srivastava RP and De Wagter C
- Subjects
- Dose-Response Relationship, Radiation, Equipment Design, Equipment Failure Analysis, Film Dosimetry methods, Radiotherapy Dosage, Radiotherapy, Conformal methods, Reproducibility of Results, Sensitivity and Specificity, Film Dosimetry instrumentation, Quality Assurance, Health Care methods, Radiotherapy, Conformal instrumentation
- Abstract
Radiographic or silver halide film is a well-established 2D dosimeter with an unquestioned spatial resolution. But its higher sensitivity to low-energy photons has to be taken into consideration. Metal compensators or physical modulators to deliver intensity modulated radiation therapy (IMRT) are known to change the beam energy spectrum and to produce scattered photons and contaminating electrons. Therefore the reliability of film dosimetry in compensator-based IMRT might be questioned. Conflicting data have been reported in the literature. This uncertainty about the validity of film dosimetry in compensator-based IMRT triggered us to conduct this study. First, the effect of MCP-96 compensators of varying thickness on the depth dose characteristics was investigated using a diamond detector which has a uniform energy response. A beam hardening effect was observed at 6 MV that resulted in a depth dose increase that remained below 2% at 20 cm depth. At 25 MV, in contrast, beam softening produced a dose decrease of up to 5% at the same depth. Second, dose was measured at depth using EDR2 film in perpendicular orientation to both 6 MV and 25 MV beams for different compensator thicknesses. A film dose underresponse of 1.1% was found for a 30 mm thick block in a 25 MV beam, which realized a transmission factor of 0.243. The effect induced by the compensators is higher than the experimental error but still within the accepted overall uncertainty of film dosimetry in clinical IMRT QA. With radiographic film as an affordable QA tool, the physical compensator remains a low threshold technique to deliver IMRT.
- Published
- 2007
- Full Text
- View/download PDF
31. Nutritional quality of leaves of some genotypes of mulberry (Morus alba).
- Author
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Srivastava S, Kapoor R, Thathola A, and Srivastava RP
- Subjects
- Calcium analysis, Carbohydrates analysis, Fats analysis, Genotype, Iron analysis, Plant Proteins analysis, Tannins analysis, Vitamins analysis, Zinc analysis, beta Carotene analysis, Morus chemistry, Plant Leaves chemistry
- Abstract
This study was undertaken to determine the proximate composition, vitamins, minerals and the antinutritional factor tannic acid in leaves of six genotypes of mulberry. The results showed that in fresh mulberry leaves the proximate composition values ranged from 71.13 to 76.68% for moisture, from 4.72 to 9.96% for crude protein, from 4.26 to 5.32% for total ash, from 8.15 to 11.32% for Neutral Detergent Fiber (NDF), from 0.64 to 1.51% for crude fat, from 8.01 to 13.42% for carbohydrate and from 69 to 86 kcal/100 g for energy. In dried mulberry leaf powder, moisture ranged from 5.11 to 7.24%, crude protein from 15.31 to 30.91%, total ash from 14.59 to 17.24%, NDF from 27.60 to 36.66%, crude fat from 2.09 to 4.93%, carbohydrate from 9.70 to 29.64% and energy from 113 to 224 kcal/100 g. Among vitamins ascorbic acid and beta-carotene were found to range from 160 to 280 mg/100 g and from 10,000.00 to 14,688.00 microg/100 g, respectively, in fresh mulberry leaves and from 100 to 200 mg/100 g and from 8438.00 to 13,125.00 microg/100 g, respectively, in dried mulberry leaf powder. The minerals iron, zinc and calcium were observed in the ranges of 4.70-10.36 mg/100 g, 0.22-1.12 mg/100 g and 380-786 mg/100 g, respectively, for fresh mulberry leaves, and 19.00-35.72 mg/100 g, 0.72-3.65 mg/100 g and 786.66-2226.66 mg/100 g, respectively, for dried mulberry leaf powder. The tannic acid ranged from 0.04 to 0.08% in fresh leaves and from 0.13 to 0.36% in dried leaf powder.
- Published
- 2006
- Full Text
- View/download PDF
32. The impact of culturally relevant violence prevention models on school-age youth.
- Author
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Rodney LW, Johnson DL, and Srivastava RP
- Subjects
- Adolescent, Age Factors, Child, Child Behavior Disorders ethnology, Female, Humans, Male, Minority Groups education, Models, Psychological, Program Development, Program Evaluation, Risk Assessment, Risk Factors, Sex Factors, Social Behavior Disorders ethnology, United States, Violence ethnology, Child Behavior Disorders prevention & control, Cultural Diversity, Curriculum, Minority Groups psychology, School Health Services, Social Behavior Disorders prevention & control, Students psychology, Violence prevention & control
- Abstract
The Family and Community Violence Prevention (FCVP) Program was established in 1994 to address the escalation of youth violence among ethnic minorities. This federally funded program adapted the public health model and organized Family Life Centers throughout the country to serve youth who were considered to be at risk for violence and other abusive behaviors. The purpose of this three-year study, 1999-2002, was to determine the effectiveness of the FCVP Program's six-component curriculum in reducing violence among participants. Results from posttest scores of 2,315 youth showed girls 12 and over to be most at risk for deviant behaviors; the program was most effective with boys under age 12. Academic performance and bonding to school were protective factors whereas exposure to violence was a risk factor for all four ethnic groups studied--African Americans, Hispanics, Native Americans, and Native Hawaiians. EDITORS' STRATEGIC IMPLICATIONS: Cultural anthropologists, public health specialists, and school officials should know that prevention programs can be designed to reflect the unique, culturally appropriate norms of specific ethnic minority groups, even as these programs address shared risk factors. The authors discuss the promising strategy of enhancing academic performance and school bonding to serve as protective factors against school violence, but they also describe age, gender, and cultural differences that must be addressed in future research.
- Published
- 2005
- Full Text
- View/download PDF
33. Mulberry (Morus alba) leaves as human food: a new dimension of sericulture.
- Author
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Srivastava S, Kapoor R, Thathola A, and Srivastava RP
- Subjects
- Animals, Caseins analysis, Dietary Proteins analysis, Flour adverse effects, Food Technology, Heart growth & development, Humans, India, Kidney growth & development, Liver growth & development, Male, Nutritive Value, Plant Leaves, Plant Proteins analysis, Rats, Temperature, Testis growth & development, Triticum adverse effects, Food Handling methods, Morus adverse effects
- Abstract
Mulberry leaf is commonly used for sericulture in almost every part of the world but its potential to be utilized for human consumption is not well recognized. This paper deals with development of mulberry leaf powder and its use with wheat flour to develop paratha, the most common food item of breakfast and dinner in the Indian diet. The optimum ratio of the mulberry leaf powder and wheat flour (MLP-WF) mix for preparation of paratha on the basis of sensory quality was found to be 1:4. The protein quality of the MLP-WF mix was estimated by measuring the Protein Efficiency Ratio, and was found to be 1.82 against a casein diet for which a value of 2.44 was observed. The in vivo toxic effect of mix was studied and no adverse effect on the growth of internal organs of rats (heart, liver, kidney and testes) was found. The storage stability of the mix was estimated for a period of 2 months in polyethylene bags at room temperature. A non-significant difference was observed between paratha prepared from fresh and stored mix. This indicated that mix can be stored for a period of 2 months at room temperature without loss of quality.
- Published
- 2003
- Full Text
- View/download PDF
34. Effect of Japanese mint (Mentha arvensis) oil as fumigant on stored sorghum: physical characteristics, sensory quality and germination.
- Author
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Singh M, Srivastava S, and Srivastava RP
- Subjects
- Edible Grain physiology, Food Preservation standards, Germination physiology, Odorants, Taste, Edible Grain standards, Food Technology methods, Fumigation methods, Magnoliopsida standards, Plant Oils standards
- Abstract
The Japanese mint (Mentha arvensis) oil (JMO) was effective as fumigant against Sitophilus oryzae in sorghum (Sorghum bicolor). The observations on the effect of JMO treatment at a dose of 166.6 microliters/l of space to grains stored for 3 months in desiccators at 28 +/- 5 degrees C showed non significant (P approximately 0.05) effect on grain hardness, grain density and per cent water absorption. The cooking quality evaluated in terms of cooking time required for boiling of grains was also not significantly affected. The JMO treated samples of boiled sorghum scored significantly lower values for sensory quality characteristics viz. taste, aroma and overall acceptability compared to untreated samples. No effect of JMO on seed germination was observed. As sensory quality is lowered by use of JMO, the technique can only be recommended for seed sorghum preservation, not food.
- Published
- 1995
- Full Text
- View/download PDF
35. Design, synthesis, and evaluation of A/C/D-ring analogs of the fungal metabolite K-76 as potential complement inhibitors.
- Author
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Kaufman TS, Srivastava RP, Sindelar RD, Scesney SM, and Marsh HC Jr
- Subjects
- Animals, Cell Division drug effects, Complement C3a antagonists & inhibitors, Complement C3a biosynthesis, Complement C5a antagonists & inhibitors, Complement C5a biosynthesis, Complement Inactivator Proteins pharmacology, Drug Design, Guinea Pigs, Hemolysis drug effects, Humans, Lymphocytes drug effects, Mice, Sesquiterpenes pharmacology, Complement Inactivator Proteins chemical synthesis, Sesquiterpenes chemical synthesis, Stachybotrys chemistry
- Abstract
The terpenoid 6,7-diformyl-3',4',4a',5',6',7',8',8a'-octahydro-4,6',7'-trihydrox y-2',5',5', 8a'-tetramethylspiro[1'(2'H)-naphthalene-2(3H)-benzofuran] (1a; K-76), a natural product of fungal origin, and its monocarboxylate sodium salt 1c (R = COONa; K-76COONa) inhibit the classical and alternative pathways of complement, and 1c was shown to inhibit the classical pathway at the C5 activation step. In an attempt to elucidate the essential pharmacophore of 1a,c, the natural product was used as a "topographical model" for the design of partial analogs retaining the desired complement inhibiting potency. Therefore, A/C/D-ring analogs have been synthesized, as shown in Scheme 1 using 3-methoxyphenol (3) and limonene chloride (5) as starting materials, which contain functional groups similar to those found on the natural product. The use of (4R)-(+)- and (4S)(-)-limonene chloride (5a,b, respectively) provided two series of compounds differing in the stereochemistry of the C-4 chiral center (limonene moiety numbering). The in vitro assay results of the inhibition of anaphylatoxin production and classical complement-mediated hemolysis revealed that 7-carboxy-2-(R,S)-methyl-2-(1'-methylcyclohexen-(4'R)-yl)-4-met hoxybenzofuran (13a) and 7-carboxy-2-(R,S)-methyl-2-(1'-methylcyclohexen-(4'S)-yl)-4-met hoxybenzofuran (13b) were active in the same range of concentrations as the natural product.
- Published
- 1995
- Full Text
- View/download PDF
36. Effect of Japanese mint (Mentha arvensis) oil as fumigant on nutritional quality of stored sorghum.
- Author
-
Singh M, Srivastava S, Srivastava RP, and Chauhan SS
- Subjects
- Dietary Carbohydrates analysis, Dietary Fats analysis, Dietary Fiber, Dietary Proteins analysis, Plant Proteins analysis, Vitamins analysis, Edible Grain chemistry, Fumigation, Nutritive Value, Plant Oils pharmacology
- Abstract
Japanese mint (Mentha arvensis) oil (JMO) can be used effectively as fumigant against Sitophilus oryzae in stored sorghum. The effect of JMO at a dose of 166 microliter/l of space on nutrient composition and protein quality was studied in infested and uninfested sorghum grains stored for 3 months. The results revealed non significant effect of JMO on gran moisture, total ash, crude fibre, crude fat, crude protein and fat acidity in infested and uninfested grains at the end of 3 months storage. The JMO treatment had small but significant effect on reducing and non-reducing sugars. The values of Protein Efficiency Ratio (PER) for uninfested JMO treated grains, infested JMO treated grains and for untreated control stored for 3 months were 1.11, 1.07 and 1.09, respectively against control casein diet for which it was 2.15.
- Published
- 1995
- Full Text
- View/download PDF
37. Naloxone-induced withdrawal in patients with buprenorphine dependence.
- Author
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Nigam AK, Srivastava RP, Saxena S, Chavan BS, and Sundaram KR
- Subjects
- Adolescent, Adult, Humans, Male, Naloxone adverse effects, Neurologic Examination drug effects, Opioid-Related Disorders psychology, Prospective Studies, Substance Abuse Detection, Substance Abuse, Intravenous psychology, Substance Withdrawal Syndrome diagnosis, Buprenorphine, Naloxone therapeutic use, Opioid-Related Disorders rehabilitation, Substance Abuse, Intravenous rehabilitation, Substance Withdrawal Syndrome etiology
- Abstract
Naloxone-induced withdrawal was studied in seven patients currently dependent only on injecting buprenorphine, within 3 to 6 hours of their last dose. Withdrawal severity began to rise from 5 minutes and reached a peak at 60 minutes after 1.2 mg naloxone given intravenously. The mean withdrawal severity score was significantly higher at 30, 60 and 90 minutes compared to the baseline. The most frequent withdrawal signs and symptoms were mydriasis, systolic hypertension, tachypnoea, muscle pains, yawning, anxiety, restlessness and craving.
- Published
- 1994
- Full Text
- View/download PDF
38. Abuse of boot polish by ingestion: a case report.
- Author
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Nigam AK, Srivastava RP, Chavan BS, and Saxena S
- Abstract
This case report describes the abuse of boot polish by inhalation and ingestion in a 32 year old patient who also had alcohol dependence. Pleasurable psychological effects, craving, active search for the substance and tolerance were present but withdrawal symptoms could not be demonstrated because of simultaneous alcohol dependence.
- Published
- 1993
39. Pregnancy interceptive efficacy and biological profile of 3-amino-6,7-dimethoxy-1H-pyrazolo [3,4-b] quinoline (compound 85/83) in rodents.
- Author
-
Mehrotra PK, Shukla R, Dwivedi A, Srivastava RP, Bhat N, Seth M, Bhaduri AP, and Kamboj VP
- Subjects
- Administration, Oral, Animals, Cricetinae, Dose-Response Relationship, Drug, Embryonic Development drug effects, Female, Guinea Pigs, Injections, Intramuscular, Injections, Subcutaneous, Male, Organ Size, Pregnancy, Rats, Rats, Inbred Strains, Trophoblasts drug effects, Uterus anatomy & histology, Uterus drug effects, Vagina drug effects, Aminoquinolines pharmacology, Contraceptive Agents pharmacology, Pregnancy, Animal drug effects
- Abstract
Administration of compound 85/83 during the peri- and post-implantation period intercepted pregnancy in hamster and guinea pig by parenteral route and in hamster by oral route also. The m.e.d. for hamster and guinea pig was 10 and 20 mg/kg, respectively; lower doses were less effective. Restricting the administration to early post-implantation schedule interrupted pregnancy partially in both species. The compound was, however, ineffective in rat and in the pre-implantation schedule (days 1-4 post-coitum) in hamster. When tested in vitro on growing trophoblasts at 13.8 x 10(-5) M concentration, it prevented growth and caused degeneration of the cells within 24 h; lower concentration (9.2 x 10(-5) M) was less effective. The compound was found to be devoid of estrogenic, antiestrogenic, progestational and antiprogestational properties in conventional bioassays. In hormone competition assays, its relative binding affinity (RBA) to estrogen receptor was negligible (0.002% of estradiol-17 beta), while for uterine cytosol progesterone receptors in rabbit and hamster was 0.06 and 0.08% of progesterone, respectively. The compound 85/83 appears to intercept pregnancy by interfering with development of trophoblast cells.
- Published
- 1991
- Full Text
- View/download PDF
40. Synthesis of 2,5-disubstituted benzimidazoles, 1,3,4-thiadiazoles and 3,5-diiodosalicylanilides as structural congeners of rafoxanide and closantel.
- Author
-
Srivastava RP and Sharma S
- Subjects
- Ancylostoma drug effects, Animals, Chemical Phenomena, Chemistry, Cysticercus drug effects, Hymenolepis drug effects, Nippostrongylus drug effects, Rafoxanide analogs & derivatives, Salicylanilides pharmacology, Anthelmintics chemical synthesis, Benzimidazoles chemical synthesis, Rafoxanide chemical synthesis, Salicylamides chemical synthesis, Salicylanilides chemical synthesis, Thiadiazoles chemical synthesis
- Abstract
The synthesis of a series of 2,5-disubstituted benzimidazoles (8-10, 13), substituted 3,5-diodosalicylanilides (6, 7, 11, 12, 16-29), 2-(4-substituted phenyl)-4-aroylamino-1,3,4-thiadiazoles (33-38) and benzoxazines (14, 30, 31) has been carried out as the structural congeners of rafoxanide and closantel. All the compounds have been tested for their anthelmintic activity against Ancylostoma ceylanicum, Nippostrongylus brasiliensis, Hymenolepis nana and Cysticecus fasciolaris in rodents. Compounds 8, 22 and 23 exhibited 90-100% elimination of the hookworms A. ceylanicum and tapeworms H. nana from hamsters and rats, respectively, at an oral dose 50-250 mg/kg body mass.
- Published
- 1990
41. Bronchiectasis: a clinical study.
- Author
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Nigam P, Goyal BM, Srivastava RP, Bajpeyi HS, and Vajpeyi GN
- Subjects
- Adolescent, Adult, Aged, Child, Female, Humans, Male, Middle Aged, Bronchiectasis complications, Bronchiectasis diagnosis
- Published
- 1975
42. Periodontal disease prevalence and treatment needs of Asian females in Wolverhampton, England.
- Author
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Srivastava RP, Walsh TF, Behari SA, and Glenwright HD
- Subjects
- Adolescent, Adult, England, Female, Humans, India ethnology, Middle Aged, Periodontal Diseases ethnology, Health Services Needs and Demand, Health Services Research, Periodontal Diseases epidemiology
- Published
- 1986
43. Contraceptive and hormonal properties of a new 1,4-dihydro-2-oxoquinoline derivative (compound 84-182) in rodents and rhesus monkeys.
- Author
-
Singh MM, Mehrotra PK, Agnihotri A, Srivastava RP, Seth M, Bhaduri AP, and Kamboj VP
- Subjects
- Animals, Binding, Competitive, Cricetinae, Cytosol drug effects, Cytosol metabolism, Estradiol metabolism, Female, Macaca mulatta, Male, Menstrual Cycle drug effects, Mesocricetus, Rabbits, Rats, Rats, Inbred Strains, Species Specificity, Uterus drug effects, Uterus metabolism, Contraceptives, Oral, Hormonal, Quinolines pharmacology, Quinolones
- Abstract
Compound 84-182 prevented pregnancy when administered subcutaneously at 10 mg/kg dose on days 3-8 post-coitum in hamsters and on days 6-10 post-coitum in guinea pigs. At lower doses, while in hamsters there was a marked reduction in implantation number, majority of implantations in guinea pigs showed signs of resorption. The compound was ineffective when administered at 10 mg/kg dose on days 1-3 or 6-7 post-coitum in hamsters and on days 1-5 or 4-8 post-coitum in rats. In rhesus monkeys, treatment with the compound at 5 and 10 mg/kg doses on days 16-21 of the menstrual cycle induced frank vaginal bleeding between days 21 and 24. Treatment on days 21-30 or after confirmation of pregnancy on days 32-36 was ineffective. In conventional bioassays, the compound was devoid of any estrogenic, antiestrogenic, progestational, antiprogestational, androgenic or antiandrogenic properties at the contraceptive dose. In competitive protein binding assay, the compound showed relative binding affinity (RBA) of less than 0.1% and 0.28% of progesterone, respectively, for rabbit and hamster uterine cytosol progesterone receptors. Its RBA for rat uterine cytosol estrogen receptors was less than 0.1% of estradiol-17 beta.
- Published
- 1987
- Full Text
- View/download PDF
44. Facial injury--incidence; diagnosis & management.
- Author
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Srivastava RP, Jaiswal MS, Tandon S, and Kumar S
- Subjects
- Adolescent, Adult, Child, Child, Preschool, Facial Bones injuries, Facial Injuries diagnosis, Facial Injuries therapy, Female, Fractures, Bone epidemiology, Humans, Infant, Male, Middle Aged, Facial Injuries epidemiology
- Published
- 1979
45. Incidence of periodontal disease in relation to class II silver amalgam restorations.
- Author
-
Srivastava RP
- Subjects
- Humans, Dental Amalgam adverse effects, Dental Plaque etiology, Dental Restoration, Permanent, Periodontal Diseases etiology
- Published
- 1979
46. A psychiatric study of cases attending dental o.p.d of a teaching general hospital.
- Author
-
Shukla GD and Srivastava RP
- Abstract
One hundred thirty cases were selected by systematic sampling from those attending the dental O.P.D. of a teaching general hospital, excluding those under 14 years and those unable to read and write Hindi well. They were administered a questionnaire carrying 50 questions covering dental and non-dental (mainly psychiatric) symptoms and the Hindi version of Middlesex Hospital Questionnaire. After this they were seen by a dental surgeon and a psychiatrist separately. Nearly a quarter of the cases had no dental disease and only slightly less than half had a definite psychiatric illness. Dental O.P.D. cases scored significantly higher on the M.H.Q. as compared to normal controls. The younger patients had the maximum score of the OBS subscale while the older ones scored maximum on the D.F.P sub-scale. The number of symptoms complained of by the patients were directly related to their M.H.Q, scores.
- Published
- 1983
47. Pre-operative anxiety and its management in dentistry.
- Author
-
Shukla GD and Srivastava RP
- Published
- 1981
48. Mandibular paramolar.
- Author
-
Srivastava RP and Singh G
- Subjects
- Adult, Humans, Male, Molar abnormalities, Tooth, Impacted pathology, Tooth, Supernumerary pathology
- Published
- 1979
49. Preoperative anxiety and its management in orostomatology.
- Author
-
Srivastava RP and Shukla GD
- Subjects
- Adult, Anxiety diagnosis, Humans, Psychotherapy, Tranquilizing Agents therapeutic use, Anxiety prevention & control, Mouth surgery
- Published
- 1980
50. Comparative study of periodontal disease in relation to approximating tooth surface to filled surface of Class II silver amalgam restorations.
- Author
-
Srivastava RP
- Subjects
- Dental Cavity Preparation, Humans, Silver, Surface Properties, Dental Amalgam, Dental Restoration, Permanent adverse effects, Periodontal Diseases etiology
- Published
- 1980
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