501
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Ghosh D, Roy J, Banerjee D, Dutta A, Sengupta R, Sengupta K, Naha S. Evidence of anomalous behavior of relativistic alpha particles emitted in 12C-emulsion interaction at 4.5 GeV/nucleon. PHYSICAL REVIEW LETTERS 1985; 54:396-397. [PMID: 10031504 DOI: 10.1103/physrevlett.54.396] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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502
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Ball AP, Fox C, Ghosh D. Sultamicillin (CP-49, 952): evaluation of two dosage schedules in urinary infection. J Antimicrob Chemother 1984; 14:395-401. [PMID: 6094422 DOI: 10.1093/jac/14.4.395] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
The results of a clinical trial of sultamicillin, a novel mutual pro-drug combination of ampicillin and the beta-lactamase inhibitor sulbactam, in ampicillin-resistant urinary tract infections are reported. The majority of infections treated occurred in elderly geriatric in-patients. Two dosage schedules were investigated, both resulting in the same total daily dosage (1500 mg sultamicillin). These were 750 mg sultamicillin, 12-hourly (series I) and 500 mg sultamicillin, 8-hourly (series II), each administered orally for seven days. Short term cure rates (after exclusion of superinfections and reinfections) of 79.5% (series I) and 82% (series II) were obtained one week after therapy, falling to 69% and 50%, respectively, at three to six week follow up. Sultamicillin was well tolerated. Pharmacokinetic studies confirmed intestinal absorption of both constituents in young volunteers and in the elderly.
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503
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Sanyal S, Nag S, Biswas NM, Ghosh D. Changes in serum testosterone & dihydrotestosterone levels in response to bromocriptine & pimozide in maturing male rats. INDIAN JOURNAL OF EXPERIMENTAL BIOLOGY 1983; 21:575-6. [PMID: 6674141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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504
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Dandekar SP, Sheth AR, Ghosh D. Presence of specific receptor binding sites for inhibin in rat spermatids. Andrologia 1983; 15:274-8. [PMID: 6309035 DOI: 10.1111/j.1439-0272.1983.tb00376.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
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505
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Howard JB, Lorsbach TW, Ghosh D, Melis K, Stout CD. Structure of Azotobacter vinelandii 7Fe ferredoxin. Amino acid sequence and electron density maps of residues. J Biol Chem 1983; 258:508-22. [PMID: 6848518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
The complete amino acid sequence of the 7Fe ferredoxin from Azotobacter vinelandii (Av Fd) was determined by repetitive Edman degradation of the whole protein and of peptides derived from CNBr cleavage or chymotrypsin digestion. The sequence was confirmed by the 2A electron density maps for the residues calculated with difference Fourier coefficients. The density maps for all residues are included in the paper. Av Fd has several important differences with the clostridial-type ferredoxins: (i) Av Fd is 106 residues (versus 55-60 for other bacterial ferredoxins); (ii) Av Fd has 9 cysteines, one of which (residue 24) is not homologous with the bacterial ferredoxins; (iii) Av Fd has 2 extra residues between 2 cysteines (residues 11 and 16) homologous to cysteines in the bacterial ferredoxins; and (iv) Av Fd has the unique sequence -Cys-Val-Glu-Val-Cys- (residues 16-20) which are two of the ligands of the 3Fe:3S center. These sequence features are compared to the sequences of various ferredoxin groups. Structure predictions for other suspected 7Fe ferredoxins are discussed.
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506
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Ghosh D, Chung D. Synchrotron X-ray diffraction study of the room temperature incommensurate phase in graphite-bromine intercalation compound. ACTA ACUST UNITED AC 1983. [DOI: 10.1051/jphyslet:019830044018076100] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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507
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Howard JB, Lorsbach TW, Ghosh D, Melis K, Stout CD. Structure of Azotobacter vinelandii 7Fe ferredoxin. Amino acid sequence and electron density maps of residues. J Biol Chem 1983. [DOI: 10.1016/s0021-9258(18)33285-x] [Citation(s) in RCA: 35] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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508
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Gupta AS, Datta N, Ghosh D. Inversion of the uterus following abortion. JOURNAL OF THE INDIAN MEDICAL ASSOCIATION 1982; 79:123-6. [PMID: 7169538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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509
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Ghosh D, O'Donnell S, Furey W, Robbins AH, Stout CD. Iron-sulfur clusters and protein structure of Azotobacter ferredoxin at 2.0 A resolution. J Mol Biol 1982; 158:73-109. [PMID: 7120409 DOI: 10.1016/0022-2836(82)90451-x] [Citation(s) in RCA: 97] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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510
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Ghosh D, Samanta TB. 11 alpha-Hydroxylation of progesterone by cell free preparation of Aspergillus ochraceus TS. JOURNAL OF STEROID BIOCHEMISTRY 1981; 14:1063-7. [PMID: 7300325 DOI: 10.1016/0022-4731(81)90217-x] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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511
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Stout CD, Ghosh D, Furey Jr W, O'Donnell SO. Refined structure of azotobacter ferredoxin (iron–sulfur protein III) at 2.0 Å resolution. Acta Crystallogr A 1981. [DOI: 10.1107/s0108767381098930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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512
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513
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Ghosh D, Furey W, O'Donnell S, Stout CD. Structure of a 7Fe ferredoxin from Azotobacter vinelandii. J Biol Chem 1981; 256:4185-92. [PMID: 7217079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
The structure of the 7Fe ferredoxin from Azotobacter vinelandii has been solved from a 3.0-A multiple isomorphous replacement map. The crystals belong to space group P43212 with a = 55.22, c = 95.20 A, and Z = 1. Heavy-atom derivatives were prepared with K2PtCl4,K2[OsO2(OH)4], and Na3RhCl6. Anomalous scattering data were collected for native (Fe) and Pt derivative crystals. The figure of merit for 3,322 reflections to 3.0 A is 0.74. The structure consists of an NH2-terminal core of residues 1-50 which form the Fe-S cluster sites, and a COOH-terminal chain of residues 51-107 which wraps around this core. The [3Fe-3S] cluster is ligated by cysteines 8, 11, 16, 20, and 49 and a sixth ligand which is either glutamic acid 18 or an exogenous small molecule. The [4Fe-4S] cluster is ligated by cysteines 24, 39, 42, and 45. The coordination of both Fe-S centers has been confirmed by fitting of the cluster atoms and residues 1-50 to unbiased 2Fo-Fc Fourier maps at 2.5-A resolution. The structure of the 3Fe center has also been confirmed with anomalous scattering difference Fourier maps using both isomorphous replacement and refined phases. The partially refined structure at 2.5 A (3,490 reflections, 6.0 sigma(F)) has R = 35%.
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514
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Ghosh D, Furey W, O'Donnell S, Stout C. Structure of a 7Fe ferredoxin from Azotobacter vinelandii. J Biol Chem 1981. [DOI: 10.1016/s0021-9258(19)69417-2] [Citation(s) in RCA: 51] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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515
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Jain MP, Nagaratnam A, Ghosh D. Assessment with TLD of radiation exposure to staff during radium insertions in cancer of cervix. Br J Radiol 1980; 53:1083-6. [PMID: 7426936 DOI: 10.1259/0007-1285-53-635-1083] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
A radiation protection survey has been carried out using TLD to assess the radiation exposure to staff during radium insertions for cancer of the cervix. The staff monitored were the radiotherapist, anaesthetist and operating theatre assistant. The radiotherapist, who received the highest exposure, had on the average 160 muGy (16 mrad) whole body (chest) dose while the finger tip doses were around 600 muGy (60 mrad) from the insertion of 60 mg radium. TLD was found to be convenient and sensitive for this purpose, including estimation of finger-tip doses. It helps to maintain the confidence of the staff that their doses are "as low as readily achievable" and also offers a means of checking improvements in practice where found necessary.
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516
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Stout CD, Ghosh D, Pattabhi V, Robbins AH. Iron-sulfur clusters in Azotobacter ferredoxin at 2.5 A resolution. J Biol Chem 1980; 255:1797-800. [PMID: 7354058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
X-ray crystallographic study of the ferredoxin-like protein (iron-sulfur protein III) from Azotobacter vinelandii has been extended to 2.5-A resolution. A 4.0-A resolution electron density map revealed that the molecule contains two Fe-S clusters of differing size and shape separated by 12 A (Stout, C.D. (1979) Nature 279, 83-84). Recent Mössbauer results by Emptage et al. (Emptage, M.H., Kent, T.A., Huynh, B.H., Rawlings, J., Orme-Johnson, W.H., and Münck, E. (1980) J. Biol. Chem. 255, 1793-1796) have shown that the molecule contains 7 iron atoms as a high potential iron protein-like Fe4 center and a novel 3-Fe center. The 2.5-A electron density map shows two distinctly different Fe-S clusters. The larger cluster consists of a tetranuclear [4Fe-4S] core ligated to the protein at each iron atom. The smaller cluster is distinctly planar and cannot be modeled with [2Fe-2S] or [4Fe-4S] structures. The best model for this cluster is a [3Fe-3S] core. The protein makes six contacts with this cluster.
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517
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Craven BM, Chang CH, Ghosh D. Dimethylglyoxime: a restricted X-ray charge-density refinement. ACTA ACUST UNITED AC 1979. [DOI: 10.1107/s0567740879011055] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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518
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Seth P, Prakash SS, Ghosh D. Antibodies to Herpes simplex virus types 1 and 2 in patients with squamous-cell carcinoma of uterine cervix in India. Int J Cancer 1978; 22:708-14. [PMID: 214407 DOI: 10.1002/ijc.2910220612] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Antibody activity to Herpes simplex virus type-1 (HSV-1) and type-2 (HSV-2) was measured by the indirect hemagglutination (IHA) test in sera from 124 women with squamous-cell carcinoma of the uterine cervix, 46 women with non-cervical cancer and 116 matched normal women. The type-specific antibodies were assayed by IHA inhibition test. The proportion of cervical cancer cases positive for HSV-2 infection was significantly greater than that of non-cervical cancer cases and matched control women. No difference was observed in the percentages positive for HSV-1 infection among the three study groups. The mean titers of antibodies to HSV-1 as well as HSV-2 were significantly higher than the respective titers in the other two study groups. However, determination of type-specific antibodies did not help in establishing evidence for past infection by HSV-2 in patients with cervical cancer, as no type-specific HSV-2 antibodies were produced in 58% of the cases. The cervical cancer cases were also analysed according to clinical staging (Stages 0 to IV) and histological differentiation of squamous-cell carcinoma. Neither the percentage of positives for HSV-2 infection nor HSV-antibody titers varied, either in clinical staging or in histological differentiation of cervical cancer. These findings suggest that HSV-2 may be related to cervical cancer as an etiological agent but not as a passenger virus of carcinomatous tissue.
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519
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Ghosh D, Dutta SK, Banerji A, Chakraborty BK. Comparative trial of co-trimoxazole and tetracycline in the treatment of lower respiratory tract infections. JOURNAL OF THE INDIAN MEDICAL ASSOCIATION 1976; 67:37-40. [PMID: 1018133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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520
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Frazee DR, Ghosh D. Tryptophan pyrrolase as a function of sex and development in mice. Biochem Biophys Res Commun 1975; 65:1013-7. [PMID: 1156411 DOI: 10.1016/s0006-291x(75)80486-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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521
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Ghosh D, Goswami P. Study of the effect of thyroxine on tissue calcium. INDIAN JOURNAL OF MEDICAL SCIENCES 1974; 28:129-32. [PMID: 4443001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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522
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Ghosh D, Lyman RL, Tinoco J. Influence of the polar group on interactions between phospholipids and sterols in monolayers. Rapid decomposition of phosphatidylethanolamines and cholesterol in monolayers at pH 11.9. Lipids 1973; 8:61-4. [PMID: 4736302 DOI: 10.1007/bf02534330] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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523
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Ghosh D, Williams MA, Tinoco J. The influence of lecithin structure on their monolayer behavior and interactions with cholesterol. BIOCHIMICA ET BIOPHYSICA ACTA 1973; 291:351-62. [PMID: 4734821 DOI: 10.1016/0005-2736(73)90488-4] [Citation(s) in RCA: 77] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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524
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Tinoco J, Ghosh D, Keith AD. Interactions of spin-labeled lipid molecules with natural lipids in monolayers at the air-water interface. BIOCHIMICA ET BIOPHYSICA ACTA 1972; 274:279-85. [PMID: 4340258 DOI: 10.1016/0005-2736(72)90176-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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525
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Ghosh D, Goswami P. Effect of insulin on tissue calcium. INDIAN JOURNAL OF MEDICAL SCIENCES 1972; 26:294-7. [PMID: 4665009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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