51
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Samanta GK, Kumar SC, Mathew M, Canalias C, Pasiskevicius V, Laurell F, Ebrahim-Zadeh M. High-power, continuous-wave, second-harmonic generation at 532 nm in periodically poled KTiOPO(4). Opt Lett 2008; 33:2955-2957. [PMID: 19079504 DOI: 10.1364/ol.33.002955] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
We report efficient generation of high-power, cw, single-frequency radiation in the green in a simple, compact configuration based on single-pass, second-harmonic generation of a cw ytterbium fiber laser at 1064 nm in periodically poled KTiOPO(4). Using a crystal containing a 17 mm single grating with period of 9.01 microm, we generate 6.2 W of cw radiation at 532 nm for a fundamental power of 29.75 W at a single-pass conversion efficiency of 20.8%. Over the entire range of pump powers, the generated green output is single frequency with a linewidth of 8.5 MHz and has a TEM(00) spatial profile with M(2)<1.34. The demonstrated green power can be further improved by proper thermal management of crystal heating effects at higher pump powers and also by optimized design of the grating period to include thermal issues.
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Affiliation(s)
- G K Samanta
- ICFO-Institut de Ciencies Fotoniques, Mediterranean Technology Park, Castelldefels, Barcelona, Spain.
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52
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Affiliation(s)
- D G Said
- Division of Ophthalmology, B Floor, Eye ENT Centre, Queen's Medical Centre, Derby Road, Nottingham NG7 2UH, UK
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53
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Abraham G, Lunawat D, Mathew M, Fathima N, Soundarajan S, Sundaram V. CORRELATION OF PULMONARY HYPERTENSION WITH EGFR, DIABETIES, SMOKING, HD, PD IN A COHORT OF RENAL TRANSPLANT RECIPIENTS FROM SOUTH INDIA. Transplantation 2008. [DOI: 10.1097/01.tp.0000331397.03642.fc] [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: 11/25/2022]
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54
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Hall W, Liu T, Stern R, Perks J, Yang C, Mathew M, Purdy J. SU-GG-T-252: An Efficient Technique for Commissioning a Tissue Heterogeneity Correction Algorithm for Treatment Planning for Lung Cancer. Med Phys 2008. [DOI: 10.1118/1.2962004] [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: 11/07/2022] Open
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55
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Yang C, Liu T, Mathew M, Killinger S, Wright C, Purdy J, Chen A. SU-GG-T-75: IMRT for Cancers of Paranasal Sinuses and Nasal Cavity: A Planning Study. Med Phys 2008. [DOI: 10.1118/1.2961827] [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: 11/07/2022] Open
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56
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Abstract
Survivors and victims of tobacco-related diseases can and should play significant roles in tobacco control advocacy efforts. This article describes one example of how to successfully incorporate their talents into a statewide programme.
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Affiliation(s)
- M Mathew
- The University of North Carolina School of Medicine, Department of Family Medicine, Chapel Hill, NC 27599, USA
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57
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Abstract
HIV-1 infects brain cells, and this results in damage to the functioning of both the central and peripheral nervous systems. Progressive decline in communication behaviours can be seen from early stages of infection. Among the communication problems observed in those infected with HIV are speech, language, cognition and swallowing. This study was undertaken with the aim of creating a profile of the vocal impairments in individuals affected with HIV/AIDS, which would in turn support evidence-based practices in the assessment and management of such individuals. Eight participants were included in the study. Subjective analysis was carried out by a speech pathologist and objective analysis of acoustic parameters, by the use of Kay Elemetrics MDVP software. The results of the study reveal that all participants had affected parameters in the voice analysis, which ranged across subjects from one parameter to all parameters. Even in the absence of direct pathology to the voice production mechanism, almost all of the parameters of voice are affected in HIV-infected persons. As this is a preliminary study, it is too early to conclude that there is a correlation between vocal deviancies and medical conditions.
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Affiliation(s)
- M Mathew
- Department of Audiology and Speech Language Pathology, Kasturba Medical College, Manipal University, Mangalore, Karnataka 575001, India.
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58
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Janakiraman H, Abraham G, Mathew M, Lalitha MK, Bhaskar S. Relapsing peritonitis due to co-infection with Mycobacterium triviale and Candida albicans in a CAPD patient. Perit Dial Int 2007; 27:311-3. [PMID: 17468481] [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: 05/15/2023] Open
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59
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Abstract
BACKGROUND Benign smooth-muscle tumors (leiomyomata) are the most frequent tumors found in the female genital tract. They are easy to diagnose in pregnancy and usually managed conservatively. Some variant forms with unusual infiltrative growth pattern have been known, but they are rare in pregnancy. The variant forms pose diagnostic and management difficulties. CASE An unusual type of leiomyoma (cotyledonoid), adhering to the bowels and occupying the whole left broad ligament, was excised completely at 14 weeks of gestation, and the pregnancy continued to term. CONCLUSION Familiarity with benign uterine smooth-muscle tumors with unusual growth patterns by gynecologists and pathologists is essential in avoiding over-treatment.
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Affiliation(s)
- M Mathew
- Department of Obstetrics and Gynecology and Department of Pathology, Sultan Qaboos University, Oman
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60
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Abraham G, Pratap B, Ramalakshmi R, Mathew M, Jeevan JM, Muralidharan TR, Moorthy A, Leslie N, Patel P. Clinical and biochemical parameters in chronic kidney disease with pulmonary hypertension. Indian J Nephrol 2007. [DOI: 10.4103/0971-4065.35012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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61
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Rai VM, Balachandran C, Mathew M. Cutaneous sarcoidosis masquerading as lepromatous leprosy. Indian J Lepr 2006; 78:365-9. [PMID: 17402349] [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: 05/14/2023]
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62
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Mathew M, Tan L, Su Q, Yang X, Baxter M, Senior E. Bioremediation of 6 % [w/w] Diesel-Contaminated Mainland Soil in Singapore: Comparison of Different Biostimulation and Bioaugmentation Treatments. Eng Life Sci 2006. [DOI: 10.1002/elsc.200620119] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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63
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Narayana B, Mathew M, Vipin K, Sreekumar NV, Cherian T. An Easy Spectrophotometric Method for the Determination of Hypochlorite Using Thionin. J Anal Chem 2005. [DOI: 10.1007/s10809-005-0166-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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64
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Wilson B, Abraham G, Manju VS, Mathew M, Vimala B, Sundaresan S, Nambisan B. Antimicrobial activity of Curcuma zedoaria and Curcuma malabarica tubers. J Ethnopharmacol 2005; 99:147-51. [PMID: 15848035 DOI: 10.1016/j.jep.2005.02.004] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2005] [Revised: 01/25/2005] [Accepted: 02/04/2005] [Indexed: 05/20/2023]
Abstract
The antimicrobial activity of extracts of Curcuma zedoaria and Curcuma malabarica tubers was tested against six bacterial and two fungal strains using the agar well diffusion and broth dilution methods. Petroleum ether, hexane, chloroform, acetone and ethanol extracts exhibited antibacterial as well as antifungal activity. Acetone and hexane extracts of both tubers showed comparable antimicrobial activity as indicated by minimum inhibitory concentration (MIC) values, but other extracts of Curcuma malabarica showed significantly lower activity than those of Curcuma zedoaria. The MIC values for different strains and extracts ranged from 0.01 to 0.15 mg/ml in Curcuma zedoaria and from 0.01 to 0.94 mg/ml in Curcuma malabarica. Staphylococcus aureus (Gram positive) was inhibited by Curcuma malabarica but not by Curcuma zedoaria. This study is the first report of the antimicrobial properties of Curcuma malabarica. The findings also support the use of Curcuma zedoaria tubers in traditional medicine for the treatment of bacterial and fungal infections.
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Affiliation(s)
- B Wilson
- Division of Crop Utilization and Biotechnology, Central Tuber Crops Research Institute, Sreekariyam, Thiruvananthapuram, Kerala 695017, India
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65
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Luqmani YA, Mathew M. Allelic variation of BAT-25 and BAT-26 mononucleotide repeat loci in tumours from a group of young women with breast cancer. Int J Oncol 2005; 25:771-5. [PMID: 15289882 DOI: 10.3892/ijo.25.3.771] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Genomic instability in the form of repeat number variation at microsatellite loci has been reported in several human cancers. To resolve current confusion regarding frequency of microsatellite instability (MSI), standardised protocols have proposed use of a consensus set of informative loci; it is claimed that analysis of 2 apparently quasi-homozygous, quasi-monomorphic, mononucleotide repeats (BAT-25 and BAT-26) is sufficiently accurate to define MSI (obviating need for corresponding constitutive DNA). We examined these loci in 163 breast cancers, 108 of which had previously been analysed at 11-24 other loci and found to have MSI in 38% of them. For BAT-26 only 1/153 (homozygous) tumours showed a contracted allele, with minor size variations (1-6 bp) between individuals. For BAT-25 repeat contractions were unambiguously observed in 12 (7.4%) tumours; only 4 of these were previously designated MSI+. DNA from normal individuals showed significant allelic variation in 8/159 (5%) cases for BAT-25; no instance of heterozygosity was seen for BAT-26. Subsequently, we analysed normal DNA from the 12 individuals whose tumours had MSI at BAT-25; in 2 cases there was germline heterozygosity. We conclude that analysis with BAT-26 (in contrast to other loci) was not a useful detector of MSI. With BAT-25, a low frequency of MSI not much greater than germline polymorphism, also limits the utility of this marker for determining MSI in breast cancer.
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Affiliation(s)
- Y A Luqmani
- Faculty of Pharmacy, Kuwait University, PO Box 24923, Safat 13110, Kuwait.
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66
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Ho S, Mathew M, Haslam J. Simultaneous onset of preseptal cellulitis in monozygotic twins. Orbit 2005; 24:43-5. [PMID: 15764116 DOI: 10.1080/01676830590891016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
We report here a rare case of simultaneous onset of preseptal cellulitis in twins. The absence of any infection in three other siblings during this period would suggest that the twins may not have developed simultaneous lid infection by sheer coincidence. The authors discuss the possible mechanism and emphasize the need for close surveillance of the twin of an index case with ocular infection.
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Affiliation(s)
- Shu Ho
- Departments of Ophthalmology, Southern General Hospital, Glasgow, Darlington, UK.
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67
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Antonio-Santos A, Mathew M, Powell C, Hatt S. Interventions for stimulus deprivation amblyopia. THE COCHRANE DATABASE OF SYSTEMATIC REVIEWS 2004. [DOI: 10.1002/14651858.cd005136] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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68
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Abstract
Four patients who had imbrication of their proximal rectum and distal sigmoid colon as part of the management of constipation following an anorectoplasty for an anorectal anomaly. Three children with an anorectal anomaly presented with constipation and marked dilation of the rectosigmoid portion of the large bowel; each had longitudinal imbrication of the dilated segment, via a left iliac fossa incision. The forth was born with a cloacal anomaly with associated colonic atresia. The small bowel was used to construct the anorectum following a redo anorectoplasty. Subsequently, the small bowel became ectatic, resulting in the patient developing persistent watery diarrhoea and severe perianal excoriation, which was managed with a 30 cm longitudinal imbrication of the distal bowel during an extensive laparotomy. All 4 have patients now have near normal bowel motions with minimal medication, after only a short hospital stay. Residual problematic dilatation of the rectosigmoid colon in patients with a high anorectal anomaly, in the presence of constipation, can be successfully managed by imbrication of the dilated segment, if carefully selected.
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Affiliation(s)
- P A Dewan
- Department of Surgery, Sunshine Hospital, 3021 St. Albans, Victoria, Australia.
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69
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Subramanian J, Abraham G, Mathew M, Kumar D, Santhosum R. An unusual neurological complication in a CAPD patient. Perit Dial Int 2004; 24:194-5. [PMID: 15119643] [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: 04/29/2023] Open
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70
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Subramanian J, Abraham G, Mathew M, Kumar D, Santhosum R. An Unusual Neurological Complication in a CAPD Patient. Perit Dial Int 2004. [DOI: 10.1177/089686080402400213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- J. Subramanian
- Department of Nephrology and Radiology Sri Ramachandra Medical College and Research InstituteChennai, India
| | - G. Abraham
- Department of Nephrology and Radiology Sri Ramachandra Medical College and Research InstituteChennai, India
| | - M. Mathew
- Department of Nephrology and Radiology Sri Ramachandra Medical College and Research InstituteChennai, India
| | - D. Kumar
- Department of Nephrology and Radiology Sri Ramachandra Medical College and Research InstituteChennai, India
| | - R. Santhosum
- Department of Nephrology and Radiology Sri Ramachandra Medical College and Research InstituteChennai, India
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71
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Mathew M, Mohanraj R, Azeez PA, Pattabhi S. Speciation of heavy metals in bed sediments of wetlands in urban Coimbatore, India. Bull Environ Contam Toxicol 2003; 70:800-808. [PMID: 12677394 DOI: 10.1007/s00128-003-0053-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Affiliation(s)
- M Mathew
- Department of Environmental Science, PSGCAS, Coimbatore 641 014, India
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72
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Luqmani YA, Mathew M, Lobo S. Frequent microsatellite alterations in a predominantly younger age of onset breast cancer population. Int J Mol Med 2003; 11:117-24. [PMID: 12469230 DOI: 10.3892/ijmm.11.1.117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Microsatellite instability (MSI) and loss of heterozygosity (LOH) was investigated in paired tumour and normal tissue DNA from 108 predominantly premenopausal breast cancer patients (under age 45 years at presentation) for 25 simple repeat loci interspersed across 11 chromosomes. MSI was observed at a single locus in 69 (64%) patients; 41 of these had instability at more than one site. Greatest frequency of MSI was at loci D2S1356 (33%), D2S2739 (22%), D3S1766 (21%) and D13S796 (20%). LOH was seen at a single site in 55% of patients and at two or more sites in 27 patients with greatest frequency at D2S1356 (33%), D2S443 (19%) and D17S1299 (18%). Both mutations were found in the same patient but at different loci. Clearly, choice of loci is a determining factor in assessing genomic instability. The relatively high frequency of MSI may also reflect peculiarities of this younger patient population. Occurrence of MSI or LOH was unrelated to clinical stage, nodal status, tumour size or grade or steroid receptor status. It was independent of mutations detected in exons 5-9 of the p53 gene. There was no significant association with survival. The lack of such correlations reflects a random disabling mechanism that may equally affect genes promoting cell death as well as growth.
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Affiliation(s)
- Y A Luqmani
- Faculty of Pharmacy, Kuwait University, Safat, Kuwait.
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73
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Lakshmi K, Mathew M, Abraham G, Sankarasubbaiya S, Soumdararajan P. Unusual causes of catheter malfunction in two CAPD patients. Perit Dial Int 2002; 22:633-4. [PMID: 12455580] [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: 02/27/2023] Open
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74
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Affiliation(s)
- K. Lakshmi
- Sri Ramachandra University & Hospital Porur, Chennai, India
| | - M. Mathew
- Sri Ramachandra University & Hospital Porur, Chennai, India
| | - G. Abraham
- Sri Ramachandra University & Hospital Porur, Chennai, India
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75
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Affiliation(s)
- M Mathew
- Department of Obstetrics and Gynaecology, University Hospital, Sultan Qaboos, Oman.
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76
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Jacobson S, Carty AJ, Mathew M, Palenik GJ. Synthesis and structure of .pi.-phosphinacetylene complexes of zerovalent palladium and platinum. J Am Chem Soc 2002. [DOI: 10.1021/ja00820a051] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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77
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Battiste MA, Coxon JM, Posey RG, King RW, Mathew M, Palenik GJ. Nonconcerted polar cycloadditions to endo-tricyclo[3.2.1.02,4]oct-6-ene. Structure of a novel tetracyanoethylene adduct. J Am Chem Soc 2002. [DOI: 10.1021/ja00837a071] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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78
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Klein A, Mathew M. An alternative suctioning technique. Anaesthesia 2002; 57:507. [PMID: 11966561 DOI: 10.1046/j.1365-2044.2002.262610.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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79
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80
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Palenik GJ, Mathew M. Structural studies of tetracyclines. Crystal and molecular structure of tetracycline-urea tetrahydrate. J Am Chem Soc 2002. [DOI: 10.1021/ja00482a025] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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81
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Palenik GJ, Mathew M, Restivo R. Structural studies of tetracyclines. Crystal and molecular structures of anhydrotetracycline hydrobromide monohydrate and 6-demethyl-7-chlorotetracycline hydrochloride trihydrate. J Am Chem Soc 2002. [DOI: 10.1021/ja00482a024] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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82
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Beer DC, Miller VR, Sneddon LG, Grimes RN, Mathew M, Palenik GJ. Triple-decked sandwich compounds. Planar C2B3H54- cyclocarborane ligands analogous to C5H5-. J Am Chem Soc 2002. [DOI: 10.1021/ja00790a070] [Citation(s) in RCA: 85] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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83
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84
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Luqmani YA, Temmim L, Parkar AH, Mathew M. Clinical implications of urokinase and tissue type plasminogen activators and their inhibitor (PAI-1) in breast cancer tissue. Oncol Rep 2002; 9:645-51. [PMID: 11956644 DOI: 10.3892/or.9.3.645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Cytosol of primary breast cancers from 217 women of predominantly Arab ethnicity were assayed for uPA, tPA, PAI-1 and a subset for ER, PR and pS2. Serum levels of CEA and CA153 were determined during follow-up. Only tPA correlated to nodal status and tumour grade, and PAI-1 to clinical stage. PAI-1 was related to uPA and both were inversely correlated with PR and pS2 (PAI-1 also to ER). Conversely tPA was directly correlated with ER, PR and pS2. Women with high tumour uPA and PAI-1, but not tPA, had shorter overall, and relapse-free, survival. Only nodal status and clinical stage were independent predictors in multivariate analysis. However, uPA and PAI-1 were more prognostically informative than ER or PR and their usefulness may extend to delineation of patients likely to respond to adjuvant therapy.
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Affiliation(s)
- Y A Luqmani
- Kuwait University, Faculty of Pharmacy, Safat 13110, Kuwait.
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85
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86
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Palenik GJ, Mathew M, Steffen WL, Beran G. Steric vs. electronic effects in palladium-thiocyanate complexes. Crystal structures of dithiocyanato[bis(diphenylphosphino)methane](II), isothiocyanatothiocyanato[1,2-bis(diphenylphosphino)ethane]palladium(II), and diisothiocyanato[1,3-bis(diphenylphosphino)propane]palladium(II). J Am Chem Soc 2002. [DOI: 10.1021/ja00838a018] [Citation(s) in RCA: 76] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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87
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88
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Mathew M, Palenik GJ, Clark GR. Crystal and molecular structures of chlorobis(acetone thiosemicarbazone)nickel(II) chloride monohydrate and nitratobis(acetone thiosemicarbazone)nickel(II) nitrate monohydrate. Inorg Chem 2002. [DOI: 10.1021/ic50120a041] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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89
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Mathew M, Sathish Kumar M, Azeez PA, Sivakumar R, Pattabi S. Sediment quality of wetlands in Coimbatore, Tamilnadu, India. Bull Environ Contam Toxicol 2002; 68:389-393. [PMID: 11993814 DOI: 10.1007/s001280266] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Affiliation(s)
- M Mathew
- Department of Environmental Sciences, PSG CAS, Coimbatore, India
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90
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Affiliation(s)
- M Mathew
- American Dental Association Health Foundation, Paffenbarger Research Center, National Institute of Standards and Technology, Gaithersburg, Md., USA
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91
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Abstract
BACKGROUND The application of pyeloureteric anastomoses in the management of pelviureteric junction obstruction is described. METHODS Two patients, one requiring a ureterocystoplasty for bladder augmentation but with a coexistent contralateral pelviureteric junction (PUJ) obstruction and the other with gross hydronephrosis but an atretic ipsilateral ureter, underwent trans-pyeloureteric anastomosis to relieve the obstruction. RESULTS Both patients demonstrated satisfactory drainage of the upper tracts on postoperative imaging. CONCLUSIONS Transureteropyeloplasty represents a novel and valid technique of urinary tract reconstruction in complex cases of PUJ obstruction.
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Affiliation(s)
- P D Anderson
- Urology Unit, Royal Children's Hospital, Parkville, Victoria, Australia
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92
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Gouthaman S, Mathew M, Sekhar U, Manjunath S, Arthur P, Abraham G. Diagnostic dilemma in coinfection. J Assoc Physicians India 2001; 49:1023-5. [PMID: 11848310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
A Fifteen years girl belonging to a low socioeconomic status was admitted with peritonsillar abscess caused by methicillin resistant Staphylococcus aureus (MRSA), high fever, diarrhoea and septicaemic shock. Initial blood cultures and widal test, stool cultures and routine stool examination were non-contributory to the diagnosis. A bone marrow culture in the second week confirmed the diagnosis of Salmonella typhi infection. Examination of a fresh stool sample showed cysts of Entamoeba histolytica. She was treated with ciprofloxacin, metronidazole, augmentin and ceftriaxone. She had no clinical evidence of immunosuppression prior to this episode and her HIV test was negative. This case report highlights the presence of community acquired MRSA infection causing perititonsillar abscess, and the diagnostic dilemma of fever and diarrhoea due to coinfection with Salmonella typhi and Entamobea histolytica.
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Affiliation(s)
- S Gouthaman
- Department of Medicine, Sri Ramachandra Medical College and Research Institute, Deemed University, Porur, Chennai
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93
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Abstract
We conducted an analysis on 41 cases of male breast cancer (median age 54 y; range 25-82 y) in Kuwait. Most (51%) were stage II cancers with 65% arising in the left breast. There were 5 (12%) T1 tumours, 23 (56%) T2 tumours and 13 (32%) T3/T4 tumours. They were mostly (95%) infiltrating ductal carcinomas; 97% were grade 2 or 3. Axillary lymph node involvement was found in 69%. Estimated 5-year survival rates were 67% and 58% for overall and relapse free survival respectively. Favourable prognosis was associated with age below 50y, clinical stage I and II, small tumour size (T1, T2), low tumour grade and absence of nodal involvement or distant metastases; nodal status and grade were independent factors for relapse free survival in multivariate analysis. In 18 cases, an immunohistochemical study showed some degree of tumour antigen reaction for ER in 89% of cases, PR in 61%, pS2 in 44%, CathD in 72%, p53 in 56%, c-erbB-2 in 50%, Ki67 and PCNA in 100% and bcl-2 in 78%. There were significant associations between several of these factors but none influenced survival. Despite the high incidence of staining of ER, our data do not support the concept of an endocrine pathway that could be usefully antagonized with antioestrogens for therapeutic benefit, as in women.
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Affiliation(s)
- L Temmim
- Kuwait Cancer Control Center, Kuwait University, Kuwait
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94
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Mihály A, Shihab-Eldeen A, Owunwanne A, Gopinath S, Ayesha A, Mathew M. Acute 4-aminopyridine seizures increase the regional cerebral blood flow in the thalamus and neocortex, but not in the entire allocortex of the mouse brain. Acta Physiol Hung 2001; 87:43-52. [PMID: 11032047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
Systemic injections of 4-aminopyridine precipitate epileptiform generalized seizures characterized mainly by shivering of the body, tail movements and tonic-clonic convulsions in rats and mice. However, only few details are known as concerns which brain regions are possibly affected and stimulated by the compound. The aim of the present study was to investigate the changes in regional cerebral blood flow in mice by using the lipophilic compound technetium-99m-hexamethyl-propyleneamineoxime (99mTc-HMPAO). Whilst the uptake of 99mTc-HMPAO was increased significantly in the neocortex and thalamus following the induction of acute 4-aminopyridine seizures, no such changes were observed in the allocortex of the mice. The increases in uptake in the neocortex and thalamus were completely prevented by carbamazepine (which abolished the symptoms of the seizure, too). The primary involvement of the neocortex and thalamus points to the importance of thalamocortical circuits in the precipitation and maintenance of experimental 4-aminopyridine convulsions.
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Affiliation(s)
- A Mihály
- Department of Anatomy, Faculty of Medicine, Albert Szent-Györgyi Health Science Center, University of Szeged, Hungary.
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95
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96
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Mathew M, Parameswaran Nair EK, Krishnan K. Bonding agent is a decisive factor in determining the marginal leakage of dental composites subjected to thermal cycling: an in vitro study. J Oral Rehabil 2001; 28:68-77. [PMID: 11298912 DOI: 10.1046/j.1365-2842.2001.00609.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The marginal leakage at the dentine/composite interface in Class II composite restorations subjected to thermal cycling has been effectively evaluated using the silver staining technique. The presence of a bonding agent at the dentine/composite interface is found to improve adhesion. Scanning electron and optical microscopic observations of sectioned specimens reveal that applying a second coat of bonding agent on the dentinal surface helps in reducing microleakage compared to a single coat application, in all three radiopaque composite/bonding agent systems studied (Z100/Single Bond, Spectrum TPH/Prime & Bond 2.1 and Chitra/Chitrabond 1.0). Thermal cycling during in vitro studies was found to provide a more appropriate representation of the adhesive behaviour of the composite in clinical situations.
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Affiliation(s)
- M Mathew
- Yenepoya Dental College, Kodial Bail, Mangalore
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97
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Mathew M, Mathews I, Manohar C, Rao S. Gelatinous transformation of bone marrow following chemotherapy for myeloma. INDIAN J PATHOL MICR 2001; 44:53-4. [PMID: 12561997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2023] Open
Abstract
Gelatinous transformation of the marrow (GTBM) has been associated with various conditions. We present a unique case of GTBM in a patient with myeloma following treatment with Melphalan.
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Affiliation(s)
- M Mathew
- Department of Pathology, Kasturba Medical College, Manipal
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98
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Mathew M, Gupta R, Krolikowski A. Role of transvaginal ultrasonography and diagnostic hysteroscopy in the evaluation of patients with abnormal uterine bleeding. Int J Gynaecol Obstet 2000; 71:251-3. [PMID: 11102616 DOI: 10.1016/s0020-7292(00)00272-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- M Mathew
- Department of Obstetrics and Gynecology, Sultan Qaboos University Hospital, Muscat, Oman
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99
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Higazy E, Al-Saeedi F, Loutfi I, Heiba S, Kalaoui M, Al-Nakib B, Patty S, Mohammed A, Gopinath S, Mathew M, Hussein A, Samy M, Elgazzar A. The impact of brushing teeth on carbon-14 urea breath test results. J Nucl Med Technol 2000; 28:162-4. [PMID: 11001497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023] Open
Abstract
OBJECTIVE The 14C urea breath test noninvasively detects the presence of the urease-producing bacteria Helicobacter pylori in the stomach. Several sources of errors have been identified to cause false or indeterminate results on the test. The objective of this study was to identify whether brushing teeth affects the test results. METHODS We performed the 14C urea breath test on 168 patients, with breath samples counted at 10 and 20 min after oral administration of 2 microCi (74 kBq) 14C urea. Ninety-four patients brushed their teeth before the test while 74 did not. RESULTS Thirty-six of the 74 patients (49%) who did not brush their teeth had positive results at 10 min, which became negative at 20 min. None of the 94 patients who brushed their teeth before testing showed this pattern with agreement of results at 10 and 20 min. CONCLUSION We recommend brushing teeth before the 14C urea breath test since it significantly decreased the ambiguous results of the test in our laboratory.
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Affiliation(s)
- E Higazy
- Department of Nuclear Medicine, Kuwait University, Safat
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100
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Abstract
Spontaneous bacterial peritoneal infections is recognized as a very common complication of cirrhotic ascites, but isolation of fungus in pure culture from ascitic fluid is relatively rare, even more so in the human immunodeficiency virus (HIV)-negative or nonimmunocompromised hosts. We describe two patients of spontaneous fungal peritonitis where the isolate was Cryptococcus neoformans. Both cases suffered from hepatitis B virus (HBV) infection. The clinical and laboratory profiles of both patients were similar to those of conventional spontaneous bacterial peritonitis. We suggest that it would be prudent to heighten clinical suspicion for fungal peritonitis in such cases.
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Affiliation(s)
- V Cleophas
- Department of Gastroenterology & Hepatology, C.M.C. Hospital, Vellore, Tamil Nadu, India
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