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Reddy B, Basu P. Estimation of the Effect of System Pressure and CO2 Concentration on Radiation Heat Transfer in a Pressurized Circulating Fluidized Bed Combustor. Chem Eng Res Des 2002. [DOI: 10.1205/026387602753501898] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Davie SR, Rubie ND, Hammes BS, Carrano CJ, Kirk ML, Basu P. Geometric Control of Reduction Potential in Oxomolybdenum Centers: Implications to the Serine Coordination in DMSO Reductase. Inorg Chem 2001; 40:2632-3. [PMID: 11375669 DOI: 10.1021/ic0012017] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Basu P, Majumder PP, Roychoudhury S, Bhattacharyya NP. Haplotype analysis of genomic polymorphisms in and around the myotonic dystrophy locus in diverse populations of India. Hum Genet 2001; 108:310-7. [PMID: 11379877 DOI: 10.1007/s004390100479] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The frequencies of haplotypes based upon the (CTG)n repeat and three other biallelic markers in and around the myotonic dystrophy (DM) locus were estimated in 13 ethnically, linguistically and geographically diverse sub-populations of India. The range of CTG repeats in caste populations was 5-31, while in tribal populations the range was shorter (5-23). Extensive variation in frequencies of large (CTG)n alleles (> or =18 repeats) was found in Indian populations. The implications of this finding on DM epidemiology are discussed. Haplotype diversity was found to be very high in most populations. The majority of the Indian DM patients carried a haplotype that is commonly found among DM patients globally; this is the most common haplotype in the class of large (> or =18 repeats) CTG alleles. However, one haplotype was found to be present in particularly high frequency in Indian populations; this haplotype was also found among Indian DM patients. This haplotype may be a characteristic of Indian and possibly of other East Asian populations.
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Mondal S, Basu P. Dendrimer encapsulation of [MoVOS4] cores: implications for the DMSO reductase family of enzymes. Inorg Chem 2001; 40:192-3. [PMID: 11170521 DOI: 10.1021/ic0011866] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Timmermans S, Lefebvre L, Boire D, Basu P. Relative size of the hyperstriatum ventrale is the best predictor of feeding innovation rate in birds. BRAIN, BEHAVIOR AND EVOLUTION 2000; 56:196-203. [PMID: 11154998 DOI: 10.1159/000047204] [Citation(s) in RCA: 113] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Within the avian telencephalon, the dorsal ventricular ridge (DVR) contains higher order and multimodal integration areas. Using multiple regressions on 17 avian taxa, we show that an operational estimate of behavioral flexibility, the frequency of feeding innovation reports in ornithology journals, is most closely predicted by relative size of one of these DVR areas, the hyperstriatum ventrale. Neither phylogeny, juvenile development mode, nor species sampled account for the relationship. Similar results are found when the hyperstriatum ventrale is lumped with a second DVR structure, the neostriatum. In simple correlations, size of the wulst and the striatopallidal complex is associated with feeding innovation rate, but the two structures are eliminated from the multiple regressions. Our results parallel those on primates showing a correlation between innovation rate and neocortex size and support the idea that the mammalian neocortex and the neostriatum-hyperstriatum ventrale complex in birds have similar integrative roles.
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Basu P, Gangopadhaya PK, Mukherjee SC, Das SK, Sinha KK, Bhattacharyya NP. Molecular anatomy of CTG expansion in myotonin protein kinase gene among myotonic dystrophy patients from eastern India. Hum Mutat 2000; 16:372. [PMID: 11013451 DOI: 10.1002/1098-1004(200010)16:4<372::aid-humu13>3.0.co;2-g] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
We have studied the CTG repeat sizes in the DMPK gene and six biallelic markers which are in complete linkage disequlibrium with Caucasian DM patients, to identify any common founder haplotype in 30 clinically diagnosed unrelated DM patients from eastern India. Our results revealed that in 27 patients (90%), CTG expansion took place on a DraIII(-) - HhaI(-) - Alu(+) - HinfI(+) - Fnu4H I(-) - TaqI(+) haplotype (haplotype I), similar to what have been published for Caucasoid and other DM patients. However, in three patients (10%), the expansion of CTG repeat was on DraIII(+) - HhaI(+) - Alu(+) - HinfI(-) - Fnu4H I(+) - TaqI(-) background (haplotype II), indicating a new haplotype. The distribution of haplotypes in 52 normal individuals of eastern India revealed that percentage of haplotypes I and II were 23.1% and 7.7% respectively in normal chromosomes. Haplotype II is absent among Caucasian DM patients as well as normal individuals indicating that this particular haplotype may be characteristic of the Indian population. Hum Mutat 16:372, 2000.
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Pramanik S, Basu P, Gangopadhaya PK, Sinha KK, Jha DK, Sinha S, Das SK, Maity BK, Mukherjee SC, Roychoudhuri S, Majumder PP, Bhattacharyya NP. Analysis of CAG and CCG repeats in Huntingtin gene among HD patients and normal populations of India. Eur J Hum Genet 2000; 8:678-82. [PMID: 10980573 DOI: 10.1038/sj.ejhg.5200515] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
We have analysed the distribution of CAG and adjacent polymorphic CCG repeats in the Huntingtin gene in 28 clinically diagnosed unrelated Huntington's disease (HD) patients and in normal individuals belonging to different ethnic groups of India. The range of expanded CAG repeats in HD patients varied from 41 to 56 repeats, whereas in normal individuals this number varied between 11 and 31 repeats. We identified six CCG alleles from a total of 380 normal chromosomes that were pooled across different ethnic populations of India. There were two predominant alleles: (CCG)7 (72.6%) and (CCG)10 (20%). We report here for the first time one four-repeat CCG allele which has not been found in any population so far. We found 30 haplotypes (two loci CAG-CCG) for 380 normal chromosomes. In the present study, no statistically significant preponderance of expanded HD alleles was found on either (CCG)7 or (CCG)10 backgrounds. Our studies suggest that the overall prevalence of HD in Indian populations may not be as high as in Western populations. Further studies are necessary to identify the origin of HD mutation in these populations.
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Basu P, Chattopadhyay B, Gangopadhaya PK, Mukherjee SC, Sinha KK, Das SK, Roychoudhury S, Majumder PP, Bhattacharyya NP. Analysis of CAG repeats in SCA1, SCA2, SCA3, SCA6, SCA7 and DRPLA loci in spinocerebellar ataxia patients and distribution of CAG repeats at the SCA1, SCA2 and SCA6 loci in nine ethnic populations of eastern India. Hum Genet 2000; 106:597-604. [PMID: 10942107 DOI: 10.1007/s004390000320] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
To identify various subtypes of spinocerebellar ataxias (SCAs) among 57 unrelated individuals clinically diagnosed as ataxia patients we analysed the SCA1, SCA2, SCA3, SCA6, SCA7 and DRPLA loci for expansion of CAG repeats. We detected CAG repeat expansion in 6 patients (10.5%) at the SCA1 locus. Ten of the 57 patients (17.5%) had CAG repeat expansion at the SCA2 locus, while four had CAG expansion at the SCA3/MJD locus (7%). At the SCA6 locus there was a single patient (1.8%) with 21 CAG repeats. We have not detected any patient with expansion in the SCA7 and DRPLA loci. To test whether the frequencies of the large normal alleles in SCA1, SCA2 and SCA6 loci can reflect some light on prevalence of the subtypes of SCAs we studied the CAG repeat variation in these loci in nine ethnic sub-populations of eastern India from which the patients originated. We report here that the frequency of large normal alleles (>31 CAG repeats) in SCA1 locus to be 0.211 of 394 chromosomes studied. We also report that the frequency of large normal alleles (>22 CAG repeats) at the SCA2 locus is 0.038 while at the SCA6 locus frequency of large normal alleles (>13 repeats) is 0.032. We discussed our data in light of the distribution of normal alleles and prevalence of SCAs in the Japanese and white populations.
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Martínez Murillo F, Gugliuzza T, Senko J, Basu P, Stolz JF. A heme-C-containing enzyme complex that exhibits nitrate and nitrite reductase activity from the dissimilatory iron-reducing bacterium Geobacter metallireducens. Arch Microbiol 1999; 172:313-20. [PMID: 10550473 DOI: 10.1007/s002030050785] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Nitrate reduction in the dissimilatory iron-reducing bacterium Geobacter metallireducens was investigated. Nitrate reductase and nitrite reductase activities in nitrate-grown cells were detected only in the membrane fraction. The apparent K(m )values for nitrate and nitrite were determined to be 32 and 10 microM, respectively. Growth on nitrate was not inhibited by either tungstate or molybdate at concentrations of 1 mM or less, but was inhibited by both at 10 and 20 mM. Nitrate and nitrite reductase activity in the membrane fraction was not, however, affected by dialysis with 20 mM tungstate. An enzyme complex that exhibited both nitrate and nitrite reductase activity was solubilized from membrane fractions with CHAPS and was partially purified by preparative gel electrophoresis. It was found to be composed of four different polypeptides with molecular masses of 62, 52, 36, and 16 kDa. The 62-kDa polypeptide [a low-midpoint potential (-207 mV), multiheme cytochrome c] exhibited nitrite reductase activity under denaturing conditions. No molybdenum was detected in the complex by plasma-emission mass spectrometry.
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Bhattacharyya NP, Basu P, Das M, Pramanik S, Banerjee R, Roy B, Roychoudhury S, Majumder PP. Negligible Male Gene Flow Across Ethnic Boundaries in India, Revealed by Analysis of Y-Chromosomal DNA Polymorphisms. Genome Res 1999. [DOI: 10.1101/gr.9.8.711] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
From the historically prevalent social structure of Indian populations it may be predicted that there has been very little male gene flow across ethnic boundaries. To test this finding, we have analyzed DNA samples of individuals belonging to 10 ethnic groups, speaking Indo-European or Austroasiatic languages and inhabiting the eastern and northern regions of India. Eight Y-chromosomal markers, two biallelic and six microsatellite, were studied. All populations were monomorphic for the deletion allele at the YAP (DYS287) locus and for the 119-bp allele at the DYS288 locus. Y-chromosomal haplotypes were constructed on the basis of one RFLP locus and five microsatellite loci. The haplotype distribution among the groups showed that different ethnic groups harbor nearly disjoint sets of haplotypes. This indicates that there has been virtually no male gene flow among ethnic groups. Analysis of molecular variance revealed that there was significant haplotypic variation between castes and tribes, but nonsignificant variation among ranked caste clusters. Haplotypic variation attributable to differences in geographical regions of habitat was also nonsignificant.
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Bhattacharyya NP, Basu P, Das M, Pramanik S, Banerjee R, Roy B, Roychoudhury S, Majumder PP. Negligible male gene flow across ethnic boundaries in India, revealed by analysis of Y-chromosomal DNA polymorphisms. Genome Res 1999; 9:711-9. [PMID: 10447506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Abstract
From the historically prevalent social structure of Indian populations it may be predicted that there has been very little male gene flow across ethnic boundaries. To test this finding, we have analyzed DNA samples of individuals belonging to 10 ethnic groups, speaking Indo-European or Austroasiatic languages and inhabiting the eastern and northern regions of India. Eight Y-chromosomal markers, two biallelic and six microsatellite, were studied. All populations were monomorphic for the deletion allele at the YAP (DYS287) locus and for the 119-bp allele at the DYS288 locus. Y-chromosomal haplotypes were constructed on the basis of one RFLP locus and five microsatellite loci. The haplotype distribution among the groups showed that different ethnic groups harbor nearly disjoint sets of haplotypes. This indicates that there has been virtually no male gene flow among ethnic groups. Analysis of molecular variance revealed that there was significant haplotypic variation between castes and tribes, but nonsignificant variation among ranked caste clusters. Haplotypic variation attributable to differences in geographical regions of habitat was also nonsignificant.
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Basu S, Basu P, Dowell JK. Painless osteoid osteoma in a metacarpal. JOURNAL OF HAND SURGERY (EDINBURGH, SCOTLAND) 1999; 24:133-4. [PMID: 10190628 DOI: 10.1054/jhsb.1998.0048] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Osteoid osteoma is a benign primary tumour of bone occurring in the first two decades of life. It presents with pain and is uncommon in the hand, particularly so in the metacarpals. We report a painless osteoid osteoma affecting a metacarpal.
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Basu P, Gangopadhaya P, Mukherjee S, Sinha K, Bhattacharyya N. Expansion of CTG repeat in myotonin protein kinase gene on Alu(ins)-Hinf1-1 background in a myotonic dystrophy patient from India Communicated by: Haig Kazazian, Jr. Online Citation: Human Mutation, Mutation in Brief #210 (1998) Online http://journals.wiley.com/1059-7794/pdf/mutation/210.pdf. Hum Mutat 1999. [DOI: 10.1002/(sici)1098-1004(1999)13:1<84::aid-humu14>3.3.co;2-o] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Basu P, Gangopadhaya P, Mukherjee S, Sinha K, Bhattacharyya N. Expansion of CTG repeat in myotonin protein kinase gene on Alu(ins)-Hinf1-1 background in a myotonic dystrophy patient from India. Hum Mutat 1999. [DOI: 10.1002/(sici)1098-1004(1999)13:1<84::aid-humu14>3.0.co;2-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Mishin VM, Rosman AS, Basu P, Kessova I, Oneta CM, Lieber CS. Chlorzoxazone pharmacokinetics as a marker of hepatic cytochrome P4502E1 in humans. Am J Gastroenterol 1998; 93:2154-61. [PMID: 9820389 DOI: 10.1111/j.1572-0241.1998.00612.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVE Previous in vitro studies have demonstrated that hepatic P4502E1 metabolizes chlorzoxazone (CZX, a commonly used muscle relaxant) to 6-hydroxychlorzoxazone (6-OH-CZX). We thus assessed whether measurement of the plasma 6-OH-CZX/CZX ratio after a CZX challenge could serve as a marker of hepatic P4502E1 content. METHODS Three subject groups were included: recently drinking alcoholics (N = 6), abstinent alcoholics (N = 5), and nonalcoholic subjects with liver disease (N = 5) undergoing liver biopsy. Excess tissue was procured for immunochemical determination of hepatic P4502E1 content. Within an hour of the biopsy, 750 mg CZX was administered orally and serial plasma samples were collected for 6 h. RESULTS Recently drinking alcoholic subjects had a higher area under the curve for plasma 6-OH-CZX (1.354 +/- 0.258 microg x min x ml(-1)) then abstinent alcoholic subjects (0.296 +/- 0.080 microg x min x ml(-1), p < 0.005) and subjects with nonalcoholic liver disease (0.428 +/- 0.061 microg x min x ml(-1), p < 0.005). The use of the plasma 6-OH-CZX/CZX ratio at 90, 120, and 180 min discriminated between recently drinking alcoholic and nondrinking subjects. Hepatic P4502E1 content significantly correlated with the maximal 6-OH-CZX concentration (r = 0.76, p = 0.001) and other pharmacokinetic parameters. In the recently drinking group, the area under the curve for plasma 6-OH-CZX significantly decreased after 8 days of abstinence. CONCLUSIONS Measurement of plasma 6-OH-CZX after administration of a CZX challenge can serve as a marker of hepatic P4502E1 activity and thus help avoid adverse drug reactions secondary to P4502E1 induction, particularly in heavy drinkers.
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Fischer B, Enemark JH, Basu P. A chemical approach to systematically designate the pyranopterin centers of molybdenum and tungsten enzymes and synthetic models. J Inorg Biochem 1998; 72:13-21. [PMID: 9861725 DOI: 10.1016/s0162-0134(98)10054-5] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The recent growth in the chemistry of the oxo-molybdenum enzymes has demonstrated the need for developing systematic methods for naming and abbreviating the novel pterin cofactors that bind to the metal ion via the sulfur atoms of an ene-1,2-dithiolate moiety. Historically, the term "molybdopterin" was coined to designate a special pterin that binds molybdenum and the molybdenum-bound form was termed the "molybdenum cofactor". However, recent studies have demonstrated that this novel pterin also binds tungsten. Furthermore, considerable variation has been found in the pterin entity itself. Taken together, these facts show that molybdenum- and tungsten-containing enzymes possess a family of cofactors rather than a single "molybdenum cofactor". This article proposes a unified methodology for describing these cofactors and their metal-free pterin units in light of recent results from protein crystallography. The various numbering schemes that have been used for this heterocycle are considered, as well as the IUPAC rules which are currently being used for related tricyclic compounds. A unified methodology for uniquely designating and abbreviating each cofactor is proposed. The available chemical and spectroscopic information on the pyranopterin entities that are present in the molybdenum and tungsten enzymes, the precursors to these centers, and synthetic pyranopterins are in part the basis of the systematic names and simplifying abbreviations.
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Cheng L, Basu P, Cen K. Solids Circulation Rate Prediction in a Pressurized Loop-Seal. Chem Eng Res Des 1998. [DOI: 10.1205/026387698525342] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Basu P, Gunguly PK, Basu D, Bhattacharyya NP, Bhattacharya NP. Molecular diagnosis of myotonic dystrophy and Huntington's disease from Calcutta, India. Neurol India 1998; 46:199-203. [PMID: 29508777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
It has been identified that the expansion of normally polymorphic CTG repeats in myotonin protein kinase (DM-PK) gene in myotonic dystrophy (DM) and CAG repeats in huntingtin gene in Huntington's disease (HD) acts as the causative mutation. This hasimproved the ability of molecular diagnosis of these diseases. On molecular genetic screening of 40 normal chromosomes from people living in and around Calcutta, we have obtained 10 distinct alleles at the DM locus, with an estimated heterozygosity of 0.83. We have also observed 10 alleles at the HD locus on 32 chromosomes, with an estimated heterozygosity of 0.79. We further report here that at the DM locus, in two clinically diagnosed heterozygous individuals, the expanded alleles were of sizes 330 repeats and 1400 repeats respectively; the allele on the homologous chromosome was within the normal repeat range for both these individuals. Of two HD patients, one carried an expanded allele of size of 57 repeats, the other allele being in the normal range; while the second patient had both the alleles in the normal range.
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Chand S, Basu P. Embryogenesis and plant regeneration from callus cultures derived from unpollinated ovaries of Hyoscyamus muticus L. PLANT CELL REPORTS 1998; 17:302-305. [PMID: 30736611 DOI: 10.1007/s002990050397] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Unpollinated ovaries of Hyoscyamus muticus L. (commonly known as Egyptian henbane) were cultured on Murashige and Skoog and Bourgin and Nitsch media supplemented with various growth hormones to study the organogenesis, embryogenesis and regeneration of plantlets. Embryogenesis was reported for callus grown on both media containing 0.05 mg/l α-naphthaleneacetic acid and 0.5 mg/l 6-benzylaminopurine. Differentiation of roots and shoots from the calli also occurred in these media. Albinism or chlorophyll deficiency and variation in ploidy level were observed among the ovary-derived plantlets.
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Park C, Basu P. A model for prediction of transient response to the change of fuel feed rate to a circulating fluidized bed boiler furnace. Chem Eng Sci 1997. [DOI: 10.1016/s0009-2509(97)00128-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Rosman AS, Basu P, Galvin K, Lieber CS. Efficacy of a high and accelerated dose of hepatitis B vaccine in alcoholic patients: a randomized clinical trial. Am J Med 1997; 103:217-22. [PMID: 9316554 DOI: 10.1016/s0002-9343(97)00132-0] [Citation(s) in RCA: 49] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
PURPOSE A randomized, double-blind trial was conducted to compare the efficacy of a high-dose versus standard-dose hepatitis B vaccine in alcoholic patients. PATIENTS AND METHODS One hundred ten alcoholic patients were randomized to either receive the standard dose (20 micrograms at 0.1, and 6 months) or a high dose (40 micrograms at 0, 1, 2, and 6 months) of recombinant hepatitis B vaccine (Engerix-B). Patients were monitored for relapse of drinking using self-report, serial serum carbohydrate deficient transferrin, and collateral verification. The final titer of antibody to hepatitis B surface antigen (anti-HBs) was obtained 12 months after the first vaccine dose; a seroconversion was defined as a titer greater than 10 mlU/ml. RESULTS One hundred subjects completed the study; 10 of these had clinical or pathological evidence of cirrhosis. Thirty-six out of 48 (75%) of patients administered the high-dose regimen seroconverted compared with 24 of 52 (46%) in the standard dose group (P < 0.005). The mean anti-HBs titer of the high dose group was significantly greater than of the standard dose group (76.4 versus 39.4 mlU/ml, P < 0.01). Logistic regression demonstrated a significant effect on seroconversion for the vaccine dose (P < 0.005) and serum albumin (P = 0.05) but not for the other variables such as race, age, drinking during the study, serum creatinine, arm muscle circumference, and cirrhosis. CONCLUSIONS A high- and accelerated-dose regimen of hepatitis B improves the serological response in alcoholic patients. This regimen (currently recommended for hemodialysis patients) should now also be considered for patients with a history of alcoholism.
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Basu P, Packer GJ, Himstedt J. Detection of orthopaedic implants by airport metal detectors. THE JOURNAL OF BONE AND JOINT SURGERY. BRITISH VOLUME 1997; 79:388-9. [PMID: 9180315 DOI: 10.1302/0301-620x.79b3.6981] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
We have assessed the effect of a variety of implants commonly used in fracture fixation and joint replacement on the activation of metal detectors at airport security gates. A volunteer with metal implants strapped on and patients with implants in situ walked through the device. Implants used in fixation do not activate it, except for Richards cannulated screws. An Austin-Moore prosthesis does set off the detector, but a single joint replacement does not. Three or four joint replacements activate the alarm and patients with these implants should be warned of this possibility.
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Chakraborty U, Basu P, Das R, Saha A, Chakraborty BN. Evaluation of antiserum raised againstPestalotiopsis theœ for the detection of grey blight of tea by ELISA. Folia Microbiol (Praha) 1996. [DOI: 10.1007/bf02815691] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Basu P. Mobilising support for population education. HEALTH FOR THE MILLIONS 1996; 22:12-4. [PMID: 12292115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/19/2023]
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Talukdar J, Basu P. A simplified model of nitric oxide emission from a circulating fluidized bed combustor. CAN J CHEM ENG 1995. [DOI: 10.1002/cjce.5450730506] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Rosman AS, Basu P, Galvin K, Lieber CS. Utility of carbohydrate-deficient transferrin as a marker of relapse in alcoholic patients. Alcohol Clin Exp Res 1995; 19:611-6. [PMID: 7573782 DOI: 10.1111/j.1530-0277.1995.tb01556.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Carbohydrate-deficient transferrin (CDT) has been proposed as a marker of alcoholism. However, its role in monitoring alcoholic patients for relapse has not been extensively studied. We therefore performed sequential serum CDT measurements using a microcolumn/radioimmunoassay method (Kabi Pharmacia, Piscataway, NJ) in 86 male alcoholics participating in a hepatitis vaccination program who were monitored for relapse using self-report and collateral history (when available). The maximum serum CDT was significantly higher in patients who relapsed (n = 38) (33.1 +/- 3.1 mg/liter), as compared with abstinent subjects with collateral verification (n = 39) (18.8 +/- 1.3, p < 0.001) and abstinent patients without collateral verification (n = 9) (17.4 +/- 1.3, p < 0.01). Using the manufacturer's currently recommended threshold of 20 mg/liter for males, serum CDT was elevated in 29 of 38 patients who relapsed (sensitivity 76.3%). In 16 (42.1%) of the relapsed patients, a serum CDT above this threshold preceded the patient's self-report by at least 28 days. However, serum CDT exceeded 20 mg/liter in 10 of 48 patients who remained sober (specificity 79.2%); three of these patients had clinical and/or pathological evidence of cirrhosis. Using a threshold of 25 mg/liter, 21 of 38 patients who relapsed had an elevated serum CDT (sensitivity 55.3%); 12 (31.6%) of these patients had elevated serum CDT before self-report. Only 4 of 48 subjects who remained sober had serum CDT levels that exceeded 25 mg/liter (specificity 91.7%); three of these patients had clinical and/or pathological evidence of cirrhosis. In conclusion, serial serum CDT testing detects relapses before self-report in male subjects. Values between 20-25 mg/liter suggest relapse, but call for collateral verification, whereas CDT values above 25 mg/liter are usually diagnostic of relapse in the absence of cirrhosis.
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Basu P, Masters B, Patel B, Urban O. Food safety and inspection service update on food safety of animals derived from biotechnology experiments. J Anim Sci 1993; 71 Suppl 3:41-2. [PMID: 8505269 DOI: 10.2527/1993.71suppl_341x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Recent progress in the field of biotechnology and the production of transgenic livestock has raised a question regarding the need for the regulation of these animals. There is also the need to regulate nontransgenic animals resulting from transgenic animal research. It is anticipated that several governmental agencies will be involved in regulatory issues pertaining to these animals. The United States Department of Agriculture (USDA), Food Safety and Inspection Service (FSIS) will ultimately be responsible for ensuring that transgenic animals intended for human consumption are wholesome, unadulterated, and properly labeled. The FSIS has implemented a program for the regulation of slaughtering nontransgenic animals resulting from transgenic animal experiments. However, the FSIS has not yet approved any transgenic livestock for slaughter. Scientists from the FSIS, in conjunction with other government agencies, are currently developing guidelines for the slaughter of transgenic animals.
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82
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Varnam MA, Brewin L, Oliver P, Barker M, Polnay J, Basu P, Scott R, Chaudri MB, Tyers D, Hobson J. Interpractice collaboration for functional assessment in the elderly. BMJ (CLINICAL RESEARCH ED.) 1991; 303:649-50. [PMID: 1932922 PMCID: PMC1671090 DOI: 10.1136/bmj.303.6803.649-c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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83
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Venugopal S, Gupta YP, Basu P. Predictive Control of a Circulating Fluidized Bed Combustor. CAN J CHEM ENG 1991. [DOI: 10.1002/cjce.5450690115] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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84
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Goswami A, Saha M, Bhattacharya S, Dasmahapatra B, Basu P, Bhattacharya P, Chatterjee ML, Banerjee P, Sen S. Band structure in 95Ru. PHYSICAL REVIEW. C, NUCLEAR PHYSICS 1990; 42:1367-1372. [PMID: 9966868 DOI: 10.1103/physrevc.42.1367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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85
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Basu P, Chen JG, Ng L, Colaianni ML, Yates JT. Fragmentation of molecular adsorbates by electron and ion bombardment: Methoxy chemistry on Al(111). J Chem Phys 1988. [DOI: 10.1063/1.455034] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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86
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Halder PK, Basu P. The kinetic rate of combustion of electrode carbon in the temperature range of 1000-1200 k. CAN J CHEM ENG 1987. [DOI: 10.1002/cjce.5450650429] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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87
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88
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Khatua SP, Basu P, Ghose J, Das S. Incidence, etiology and outcome of aspiration syndrome in newborn. Indian Pediatr 1981; 18:317-23. [PMID: 7287160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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89
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Taylor I, Basu P, Hammond P, Darby C, Flynn M. Effect of bile acid perfusion on colonic motor function in patients with the irritable colon syndrome. Gut 1980; 21:843-7. [PMID: 7439803 PMCID: PMC1419391 DOI: 10.1136/gut.21.10.843] [Citation(s) in RCA: 39] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
A study was performed to determine the effect of bile acid perfusion on motility in the sigmoid colon of patients with the irritable colon syndrome compared with normal subjects. Deoxycholic acid (15 mM) statistically significantly increased motility in normal subjects (control 25.0 +/- 6.4%, perfusion 71.4 +/- 7.2%, P < 0.05) but neither chenodeoxycholic acid nor cholic acid had any apparent effect. In patients with the irritable colon syndrome, however, deoxycholic acid at 5 mM concentration (control 29.8 +/- 4.2%, during perfusion 57.4 +/- 6.5%, P < 0.05) as well as at 15 mM concentration (control 19.4 +/- 5.7+, perfusion 57.8 +/- 9.6%, P < 0.05) statistically significantly increased rectosigmoid motility. Patients with the irritable colon syndrome had a high resting 0.033-0.066 Hz (2-4 c/m) electrical activity, whereas in normal subjects 0.1-0.15 Hz (6-9 c/m) activity was greater. However, there was no statistically significant alteration in either electrical rhythm during the period of bile acid perfusion. In conclusion, additional evidence is presented to suggest that deoxycholic acid is the only bile acid likely to be implicated in the motor disorder of the irritable colon syndrome.
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90
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Khatua SP, Gangwal A, Basu P, Palodhi PK. The incidence and etiology of respiratory distress in newborn. Indian Pediatr 1979; 16:1121-6. [PMID: 541078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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91
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Sells RA, Brookes L, Basu P, Whitemore D. Methylprednisolone blood levels in cadaveric renal allograft recipients. Transplant Proc 1978; 10:651-3. [PMID: 362653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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92
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Abstract
Although recent work has suggested that an abnormality of the 0.05 Hz (3 c/m) slow wave electrical activity exists in the distal colon of patients with the irritable colon syndrome, it is not established whether this is related to altered bowel habit alone, or whether it is specific to the irritable colon syndrome. We have therefore studied 10 patients referred with this disorder and compared their colonic myoelectrical pattern with 10 patients suffering from assorted disorders with similar symptoms--for example, chronic pancreatitis, diverticular disease, ulcerative colitis, etc. Transit time, stool weights, percentage motility, and slow wave electrical activity were measured in each patient. The two groups were well matched for age and patients with similar symptoms in the two groups had similar values for transit time and percentage motility. There was a statistically significant increase in the 3 c/m electrical activity in patients with the irritable colon syndrome unrelated to the degree of diarrhoea or constipation. It would appear, therefore, that the abnormally high incidence of 3 c/m electrical activity in the colon is specific to the irritable colon syndrome and not merely a feature of altered bowel habit.
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93
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Bhattacharya K, Basu P, Saha H. Back wall schottky barrier solar cell with an interfacial layer. ACTA ACUST UNITED AC 1977. [DOI: 10.1002/pssa.2210410139] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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94
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95
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Feller DR, Basu P, Mellon W, Curott J, Malspeis L. Metabolism of the ephedrine isomers in rabbit liver. ARCHIVES INTERNATIONALES DE PHARMACODYNAMIE ET DE THERAPIE 1973; 203:187-99. [PMID: 4725334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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96
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Gupta CRD, Chatterjea JB, Basu P. Vitamin B 12 in Macrocytic Anæmia in Pregnancy. THE INDIAN MEDICAL GAZETTE 1953; 88:75-108. [PMID: 29014527 PMCID: PMC5186395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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