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Saksena R, Satyamurthy P, Munshi P. A Comparison of Experimental Results and FLUENT Simulations for Void-Fraction Distribution in a Two-Phase System. NUCL TECHNOL 2017. [DOI: 10.13182/nt08-a4000] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- R. Saksena
- Indian Institute of Technology, Kanpur, India
| | | | - P. Munshi
- Indian Institute of Technology, Kanpur, India
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Saksena R, Nayyar C, Manchanda V. Six-year susceptibility trends and effect of revised Clinical Laboratory Standards Institute breakpoints on ciprofloxacin susceptibility reporting in typhoidal Salmonellae in a tertiary care paediatric hospital in Northern India. Indian J Med Microbiol 2017; 34:520-525. [PMID: 27934835 DOI: 10.4103/0255-0857.195362] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
The antimicrobial trends over 6 years were studied, and the effect of revised Clinical Laboratory Standards Institute (CLSI) breakpoints (2012) for ciprofloxacin susceptibility reporting in typhoidal Salmonellae was determined. A total of 874 (95.4%) isolates were nalidixic acid-resistant (NAR). Using the CLSI 2011 guidelines (M100-S21), 585 (66.9%) isolates were ciprofloxacin susceptible. The susceptibility reduced to 11 (1.25%) isolates when interpreted using 2012 guidelines (M100-S22). Among the forty nalidixic acid susceptible (NAS) Salmonellae, susceptibility to ciprofloxacin decreased from 37 isolates (M100-S21) to 12 isolates (M100-S22). The 25 cases which appeared resistant with newer guidelines had a minimum inhibitory concentration (MIC) range between 0.125 and 0.5 μg/ml. MIC50 for the third generation cephalosporins varied between 0.125 and 0.5 μg/ml over 6 years whereas MIC90 varied with a broader range of 0.19-1 μg/ml. The gap between NAR and ciprofloxacin-resistant strains identified using 2011 guidelines has been reduced; however, it remains to be seen whether additional NAS, ciprofloxacin-resistant isolates are truly resistant to ciprofloxacin by other mechanisms of resistance.
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Affiliation(s)
- R Saksena
- Department of Clinical Microbiology and Infectious Diseases, Chacha Nehru Bal Chikitsalaya, New Delhi, India
| | - C Nayyar
- Department of Clinical Microbiology and Infectious Diseases, Chacha Nehru Bal Chikitsalaya, New Delhi, India
| | - V Manchanda
- Department of Clinical Microbiology and Infectious Diseases, Chacha Nehru Bal Chikitsalaya; Department of Microbiology (VM), Maulana Azad Medical College, New Delhi, India
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Abstract
Bordetella trematum spp. nov. has been isolated from wounds, ear infections and diabetic ulcers. We report a case of a 7-month-old infant with fever, vomiting and abnormal body movements with bacteremia caused by this novel species. The infant responded to fluoroquinolone and macrolide combination therapy.
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Affiliation(s)
| | - V Manchanda
- Clinical Microbiology and Infectious Diseases Division, Chacha Nehru Bal Chikitsalaya and Associated Maulana Azad Medical College, New Delhi, India
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Saksena R, Baveja C, Kumar S, Hira H, Khanna A. Drug susceptibility testing of Mycobacterium tuberculosis by two phenotypic methods. Int J Infect Dis 2012. [DOI: 10.1016/j.ijid.2012.05.968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Parthasarathy N, Saksena R, Kováč P, Deshazer D, Peacock SJ, Wuthiekanun V, Heine HS, Friedlander AM, Cote CK, Welkos SL, Adamovicz JJ, Bavari S, Waag DM. Application of carbohydrate microarray technology for the detection of Burkholderia pseudomallei, Bacillus anthracis and Francisella tularensis antibodies. Carbohydr Res 2008; 343:2783-8. [PMID: 18558401 DOI: 10.1016/j.carres.2008.05.021] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2008] [Revised: 05/19/2008] [Accepted: 05/24/2008] [Indexed: 10/22/2022]
Abstract
We developed a microarray platform by immobilizing bacterial 'signature' carbohydrates onto epoxide modified glass slides. The carbohydrate microarray platform was probed with sera from non-melioidosis and melioidosis (Burkholderia pseudomallei) individuals. The platform was also probed with sera from rabbits vaccinated with Bacillus anthracis spores and Francisella tularensis bacteria. By employing this microarray platform, we were able to detect and differentiate B. pseudomallei, B. anthracis and F. tularensis antibodies in infected patients, and infected or vaccinated animals. These antibodies were absent in the sera of naïve test subjects. The advantages of the carbohydrate microarray technology over the traditional indirect hemagglutination and microagglutination tests for the serodiagnosis of melioidosis and tularemia are discussed. Furthermore, this array is a multiplex carbohydrate microarray for the detection of all three biothreat bacterial infections including melioidosis, anthrax and tularemia with one, multivalent device. The implication is that this technology could be expanded to include a wide array of infectious and biothreat agents.
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Affiliation(s)
- N Parthasarathy
- Bacteriology Division, United States Army Medical Research Institute of Infectious Diseases, Frederick, MD 21702, United States.
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Saksena R, Kochupillai N. A new anaesthetic regimen for excision of phaeochromocytomas. Natl Med J India 2001; 14:178-9. [PMID: 11467151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
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Saksena R, Jayaswal A, Deka RC. Low cost invasive blood pressure monitoring--a new technique. Trop Gastroenterol 2001; 22:31-2. [PMID: 11398244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/16/2023]
Affiliation(s)
- R Saksena
- All India Institute of Medical Sciences, New Delhi 110029, India
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Saksena R. Disaster management for tropical countries. Trop Gastroenterol 2001; 22:1-4. [PMID: 11398236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
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Abstract
Two novel pregnane glycosides, denicunine (1) and heminine (4), have been isolated from the dried stem of Hemidesmus indicus R.Br. (family: Asclepiadaceae). Chemical transformations and spectroscopic evidence viz: 1H and 13C NMR spectroscopy and FABMS are consistent with the structures calogenin 3-O-3-O-methyl-beta-D-fucopyranosyl-(1-->4)-O-beta-D-oleandropyranosi de and calogenin 3-O-beta-D-cymaropyranosyl-(1-->4)-O-beta-D-digitoxopyranoside+ ++, respectively.
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Affiliation(s)
- P Sigler
- Department of Chemistry, Lucknow University, India
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Saksena R, Bartlett DW, Smith BG. The role of saliva in regurgitation erosion. Eur J Prosthodont Restor Dent 1999; 7:121-4. [PMID: 11314424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
It has been suggested that salivary characteristics are important in the progression of erosion. The aim of this investigation was to measure salivary parameters in 22 patients with erosion, 10 with normal (non-pathological) levels of reflux (Group I) and 12 with previously diagnosed pathological levels of gastro-oesophageal reflux (Group II). A further 10 subjects without evidence of erosion and no history of reflux disease acted as controls (Group III). No statistically significant differences in salivary flow rate, buffering power or the concentrations of calcium, phosphorus and fluoride were detected. The results suggest that variation in the characteristics of unstimulated and stimulated saliva collected during waking hours do not have a major role in erosion.
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Saksena R, Deepak D, Khare A, Sahai R, Tripathi LM, Srivastava VM. A novel pentasaccharide from immunostimulant oligosaccharide fraction of buffalo milk. Biochim Biophys Acta 1999; 1428:433-45. [PMID: 10434063 DOI: 10.1016/s0304-4165(99)00089-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
A processed oligosaccharide mixture of buffalo milk induced significant stimulation of antibody, delayed-type hypersensitivity response to sheep red blood cells in BALB/c mice. This also stimulated non-specific immune response of the animals measured in terms of macrophage migration index. A novel pentasaccharide has been isolated from the oligosaccharide containing fraction having immunostimulant activity of buffalo milk. This compound was isolated by a combination of gel filtration chromatography, silica gel column chromatography of derivatised oligosaccharides while the homogeneity was confirmed by high performance liquid chromatography. The results of structural analyses, i.e. proton nuclear magnetic resonance, fast atom bombardment mass spectrometry, chemical transformations and degradations are consistent with the following structure: GlcNAcbeta(1-->3)Galbeta(1-->4)GlcNAcbeta(1-->3)Gal beta(1-->4)Glc
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Affiliation(s)
- R Saksena
- Department of Chemistry, Lucknow University, Lucknow 226 007, India
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Bhalotra AR, Saksena R. Evaluation of diclofenac sodium as a perioperative analgesic. Indian J Med Sci 1994; 48:277-283. [PMID: 7875749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
1. This study was undertaken to assess whether the analgesia conferred by Diclofenac sodium in the post operative period following general surgery is enhanced by preoperative administration of the drug. 2. Two groups of patients were studied. Group I patients received narcotic premedication and Group II patients received Diclofenac sodium as premedication. Post operatively both groups were administered intramuscular Diclofenac sodium 8 hourly for 48 hours. 3. Pain scoring using visual analogue scale indicated a better pain relief in Group II patients. In Group I, 75% patients had a pain score less than 3 whereas 85% in Group II had a pain score less than 3 (Figure 1). 4. Pulmonary function tests were done 24 hours after surgery and revealed improved values of all parameters in Group II patients. This indicates a greater degree of analgesia in Group II patients. 5. Preoperative administration of the drug reduces the initiation of pain in the periphery and decreases the inflammatory response after surgery. 6. NSAIDS do not have any central effect or any respiratory depression. Patients in our study were found to be awake, cooperative and pain free. The additional analgesia conferred by preoperative administration in conjunction with adequate postoperative therapy allows us to recommend Diclofenac sodium as a sole analgesic for perioperative pain relief except in those patients with a bleeding diathesis.
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Saksena R, Mathur SK, Kaul HL. Organisation and administration of mobile intensive care units or mobile advanced life support unit. J Acad Hosp Adm 1991; 3:35-9. [PMID: 10115747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Affiliation(s)
- R Saksena
- All India Institute of Medical Sciences, New Delhi
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Chawla R, Arora MK, Saksena R, Gode GR. Efficacy & dose-response of intrathecal pentazocine for post-operative pain relief. Indian J Med Res 1989; 90:220-3. [PMID: 2767747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
With a view to assess the efficacy of intrathecal pentazocine for post-operative pain relief, 60 patients randomly divided into 6 equal groups were administered graded doses (0, 1, 2, 3, 4 and 5 mg respectively) of pentazocine lactate, intrathecally along with 1 per cent bupivacaine. The duration of analgesia was found to be dose related till 3 mg. Higher doses did not increase the duration of analgesia nor were any untoward effects observed. It is concluded that intrathecal pentazocine is safe and effective for post-operative pain relief and 3 mg is the minimum effective dose without side effect.
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Gode GR, Saksena R, Batra RK, Kalia PK, Bhide NK. Treatment of 54 clinically diagnosed rabies patients with two survivals. Indian J Med Res 1988; 88:564-6. [PMID: 3243618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
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Batra RK, Jayalaxmi TS, Saksena R, Gode GR. Acute pulmonary oedema following an attempted suicidal hanging. Indian J Chest Dis Allied Sci 1984; 26:272-5. [PMID: 6545270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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Kalia PK, Madan R, Saksena R, Batra RK, Gode GR. Epidural pentazocine for postoperative pain relief. Anesth Analg 1983; 62:949-50. [PMID: 6614530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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