176
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Ostermann D, Jacobs H, Harbrecht B. Natriumoxonitridometallate(VI) von Molybd�n und Wolfram, Na4MO2N2 (M = Mo, W). Z Anorg Allg Chem 1993. [DOI: 10.1002/zaac.19936190721] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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177
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Jha P, Jacobs H, Bose D, Wang R, Yang J, Light RB, Mink S. Effects of E. coli sepsis and myocardial depressant factor on interval-force relations in dog ventricle. THE AMERICAN JOURNAL OF PHYSIOLOGY 1993; 264:H1402-10. [PMID: 8498554 DOI: 10.1152/ajpheart.1993.264.5.h1402] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
We examined whether depressed left ventricular (LV) contractility during Escherichia coli sepsis in dogs was due to a decrease in the fractional release of calcium from the sarcoplasmic reticulum (SR) or a reduction in calcium content in this organelle. To indirectly assess SR calcium availability in a right ventricular (RV) trabecular muscle preparation, we utilized functional indexes of cellular myocardial calcium metabolism, which included rapid-cooling contracture (RCC), an indicator of SR calcium content, and postrest contraction (PRC), an index of calcium availability from the release compartment of the SR. Measurements were made during steady-state stimulation at 0.5 and 1.5 Hz, during which time rest intervals of 30-240 s were periodically imposed. SR calcium availability was measured in RV trabeculae of dogs subjected to 4 h of E. coli sepsis and was compared with calcium availability measured in nonseptic dogs. We further characterized a filterable cardiodepressant substance (FCS), which has been previously shown to be associated with LV depression in this model, to determine whether it produced changes in calcium metabolism similar to those found in sepsis. The results showed that calcium availability from the SR of septic dogs was not impaired. Furthermore, FCS was found in the 10,000- to 30,000-mol wt fraction of plasma and produced changes in PRC in canine trabeculae that were similar to those produced during sepsis. We conclude that, as assessed by PRC and RCC, SR calcium content and release are not impaired in sepsis.
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178
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Momma C, Eichmann H, Jacobs H, Tünnermann A, Welling H, Wellegehausen B. Short-pulse amplification and gain dynamics of an ArF excimer amplifier. OPTICS LETTERS 1993; 18:516-518. [PMID: 19802186 DOI: 10.1364/ol.18.000516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Subpicosecond pulses at 193 nm, generated by a nonresonant difference-frequency mixing process in xenon, have been amplified in an ArF excimer gain module to output energies of as much as 10 mJ. Investigations on the gain characteristics of the ArF excimer amplifier yield a saturation energy density of 1.9 mJ/cm(2) and a maximum small-signal gain coefficient of 0.15 cm(-1). Gain recovery measurements have been performed. A dominant gain recovery time of ~3 ns with indications of a small fast contribution in the picosecond range have been observed.
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179
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Jacobs H, N�cker B. Neubestimmung von Struktur und Eigenschaften isotyper Natriumtetraamidometallate des Aluminiums und Galliums. Z Anorg Allg Chem 1993. [DOI: 10.1002/zaac.19936190224] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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180
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Gawel MJ, Rothbart P, Jacobs H. Subcutaneous sumatriptan in the treatment of acute episodes of posttraumatic headache. Headache 1993; 33:96-7. [PMID: 8384612 DOI: 10.1111/j.1526-4610.1993.hed3302096.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Seven patients with posttraumatic headaches refractory to other medical treatment were treated with sumatriptan, 6 mg subcutaneously, at the peak of a headache. In all, the throbbing temporal part of the headache disappeared leaving a persistent occipital pain. It is postulated that involvement of the trigeminovascular system is involved in part of the pain of posttraumatic headache, making it amenable to treatment with sumatriptan.
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181
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Jacobs H, Mengis H. Synthese und Kristallstruktur von Alkalimetalldiamidodioxosilicaten M2SiO2(NH2)2 mit M ? K, Rb und Cs. Z Anorg Allg Chem 1993. [DOI: 10.1002/zaac.19936190213] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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182
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Jacobs H, N�cker B. AlCl3 � 3NH3 ? eine Verbindung mit der Kristallstruktur eines Tetraammindichloroaluminium-diammintetrachloroaluminats: [AlCl2(NH3)4]+[AlCl4(NH3)2]? Z Anorg Allg Chem 1993. [DOI: 10.1002/zaac.19936190112] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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183
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Mannaerts B, Shoham Z, Schoot D, Bouchard P, Harlin J, Fauser B, Jacobs H, Rombout F, Coelingh Bennink H. Single-dose pharmacokinetics and pharmacodynamics of recombinant human follicle-stimulating hormone (Org 32489*) in gonadotropin-deficient volunteers. Fertil Steril 1993; 59:108-14. [PMID: 8419196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
OBJECTIVE To assess safety, pharmacokinetic, and pharmacodynamic properties of recombinant human follicle-stimulating hormone (FSH; Org 32489, Organon International, Oss, The Netherlands) after a single intramuscular injection in the buttock. DESIGN In a prospective study, safety variables, serum FSH, luteinizing hormone, inhibin, estradiol (females only), and testosterone (males only) were evaluated up to a maximum of 11 days after injection of 300 IU recombinant FSH. SETTING Four specialist Reproductive Endocrinology and Infertility units. VOLUNTEERS Fifteen men and women exhibiting all pituitary gonadotropin deficiency. RESULTS A single bolus of 300 IU recombinant FSH was well tolerated, and no drug-related adverse effects were noted. Comparison of before and after treatment safety variables, including serum antirecombinant FSH antibodies, showed no changes of clinical relevance. Analysis of serum FSH levels revealed comparable elimination half-lives of 44 +/- 14 (mean +/- SD) and 32 +/- 12 hours in women and men volunteers, respectively. In contrast, peak FSH concentrations were significantly lower in women than in men volunteers (4.3 +/- 1.7 versus 7.4 +/- 2.8 IU/L), and the time required to reach peak levels of FSH was significantly longer in women than in men (27 +/- 5 versus 14 +/- 8 hours). The area under the serum level versus time curve tended to be smaller in women than in men volunteers (339 +/- 105 versus 452 +/- 183 IU/L x hours), but the difference did not reach statistical significance. Together these data suggest that recombinant FSH is absorbed from its intramuscular depot to a lower rate and extent in women than in men. In both sexes a relationship between serum FSH levels and body weight was apparent. During the experimental period, other hormones remained low at baseline levels or were only slightly increased. CONCLUSION Our findings indicate that recombinant FSH is well tolerated and that it is absorbed from its intramuscular depot to a higher rate and extent in men than in women. After intramuscular administration, its half-life is in good agreement with that previously reported for natural FSH.
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184
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Jacobs H, Klinkner-Weber W. Ten years experience with an HDR after-loading technique in the treatment of advanced cervical cancer. Eur J Cancer 1993. [DOI: 10.1016/0959-8049(93)91324-e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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185
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Jacobs H. Glandular tularemia with typhoidal features in a Manitoba child. CMAJ 1992; 147:1313. [PMID: 1483231 PMCID: PMC1336427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
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186
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Hennig TJ, Jacobs H. Strukturchemische Verwandtschaft von Kaliumhexahydroxoscandat(III), K3[Sc(OH)6] mit den isotypen Hydroxometallaten Rb3[Sc(OH)6], K3[Cr(OH)6] und Rb3[Cr(OH)6]. Z Anorg Allg Chem 1992. [DOI: 10.1002/zaac.19926161012] [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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187
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Jacobs H, N�cker B. AlCl3 � 2NH3 - eine Verbindung mit der Kristallstruktur eines Tetraammindichloroaluminium-tetrachloroaluminats - [AlCl2(NH3)4]+[AlCl4]? Z Anorg Allg Chem 1992. [DOI: 10.1002/zaac.19926140806] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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188
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Lutz HD, Lange N, Jacobs H, N�cker B. Gitterschwingungsspektren. LXXI. Wasserstoffbr�ckenbindungen und synergetischer Effekt in kristallinen Amiden am Beispiel von NaAl(NH2)4. Z Anorg Allg Chem 1992. [DOI: 10.1002/zaac.19926130114] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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189
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Ossendorp F, Jacobs H, van der Horst G, de Vries E, Berns A, Borst J. T cell receptor-alpha beta lacking the beta-chain V domain can be expressed at the cell surface but prohibits T cell maturation. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 1992; 148:3714-22. [PMID: 1351085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/25/2023]
Abstract
A TCR-beta gene lacking V domain sequences (delta V-TCR-beta) was inserted into the germline of mice. Expression of the transgene inhibited endogenous TCR-beta, but not TCR-alpha gene rearrangement and expression. The mutated TCR-beta gene affected alpha beta T cell development: the common thymocyte pool was normal in cell number, with cells expressing CD4 and CD8, but the mature, "CD3bright" population expressing either CD4 or CD8 molecules was reduced by 90%. To help understand these effects on TCR-beta gene rearrangement and T cell development, biosynthesis of the delta V-TCR-beta protein was analyzed in a tumor cell line derived from a transgenic mouse. Despite absence of the V domain, the delta V-TCR-beta chain paired with endogenous TCR-alpha chains and assembled with CD3 gamma, -delta, -epsilon, and -zeta components in the endoplasmatic reticulum, followed by transport through the Golgi complex to the plasma membrane. Therefore, assembly of the complex, and even cell surface expression, may be relevant for allelic exclusion of the TCR-beta gene. In the common thymocyte population, the CD3 components, endogenous TCR-alpha, and the delta V-TCR-beta gene product were expressed at the RNA level, but endogenous TCR-beta was not. The TCR-alpha delta beta/CD3 complex was present at the cell surface at low levels and was functional in terms of anti-CD3-induced Ca2+ mobilization. The observed arrest of alpha beta T cell development at the CD4+8+ thymocyte stage indicates that ligand recognition by the TCR, with contribution of the beta-chain V domain, is not required for transition of CD4-8- thymocytes to the CD4+8+ phenotype, but necessary for entry into the "single positive," CD3bright differentiation stage.
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MESH Headings
- Animals
- Antigens, Differentiation, T-Lymphocyte/metabolism
- Base Sequence
- CD3 Complex
- CD4-Positive T-Lymphocytes/cytology
- Calcium/metabolism
- Cell Differentiation
- Cell Membrane/metabolism
- Gene Expression
- Mice
- Mice, Transgenic
- Molecular Sequence Data
- Oligodeoxyribonucleotides/chemistry
- RNA, Messenger/genetics
- Receptors, Antigen, T-Cell/metabolism
- Receptors, Antigen, T-Cell, alpha-beta/chemistry
- Receptors, Antigen, T-Cell, alpha-beta/genetics
- Receptors, Antigen, T-Cell, alpha-beta/metabolism
- Signal Transduction
- Structure-Activity Relationship
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190
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Ossendorp F, Jacobs H, van der Horst G, de Vries E, Berns A, Borst J. T cell receptor-alpha beta lacking the beta-chain V domain can be expressed at the cell surface but prohibits T cell maturation. THE JOURNAL OF IMMUNOLOGY 1992. [DOI: 10.4049/jimmunol.148.12.3714] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Abstract
A TCR-beta gene lacking V domain sequences (delta V-TCR-beta) was inserted into the germline of mice. Expression of the transgene inhibited endogenous TCR-beta, but not TCR-alpha gene rearrangement and expression. The mutated TCR-beta gene affected alpha beta T cell development: the common thymocyte pool was normal in cell number, with cells expressing CD4 and CD8, but the mature, "CD3bright" population expressing either CD4 or CD8 molecules was reduced by 90%. To help understand these effects on TCR-beta gene rearrangement and T cell development, biosynthesis of the delta V-TCR-beta protein was analyzed in a tumor cell line derived from a transgenic mouse. Despite absence of the V domain, the delta V-TCR-beta chain paired with endogenous TCR-alpha chains and assembled with CD3 gamma, -delta, -epsilon, and -zeta components in the endoplasmatic reticulum, followed by transport through the Golgi complex to the plasma membrane. Therefore, assembly of the complex, and even cell surface expression, may be relevant for allelic exclusion of the TCR-beta gene. In the common thymocyte population, the CD3 components, endogenous TCR-alpha, and the delta V-TCR-beta gene product were expressed at the RNA level, but endogenous TCR-beta was not. The TCR-alpha delta beta/CD3 complex was present at the cell surface at low levels and was functional in terms of anti-CD3-induced Ca2+ mobilization. The observed arrest of alpha beta T cell development at the CD4+8+ thymocyte stage indicates that ligand recognition by the TCR, with contribution of the beta-chain V domain, is not required for transition of CD4-8- thymocytes to the CD4+8+ phenotype, but necessary for entry into the "single positive," CD3bright differentiation stage.
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191
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Park KD, Kim WG, Jacobs H, Okano T, Kim SW. Blood compatibility of SPUU-PEO-heparin graft copolymers. JOURNAL OF BIOMEDICAL MATERIALS RESEARCH 1992; 26:739-56. [PMID: 1527098 DOI: 10.1002/jbm.820260605] [Citation(s) in RCA: 51] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Biological responses to heparinized segmented polyurethaneurea (SPUU-PEO-Heparin) were evaluated in vitro and ex vivo. In vitro assays involved plasma protein adsorption, platelet adhesion, and release reaction studies. In addition, an ex vivo rabbit arterio-artery (A-A) shunt experiment was also performed to measure occlusion times of the heparinized surfaces. All SPUU-PEO-Heparin surfaces demonstrated less protein adsorption than Biomer and protein adsorption patterns similar to SPUU-PEO surfaces. Platelet adhesion and release studies demonstrated that both SPUU-PEO-Heparin and SPUU-PEO surfaces adsorbed less platelets and inhibited platelet release, as compared to Biomer. These findings correlated with reduction in protein adsorption observed for the modified surfaces. In low flow rate ex-vivo A-A shunt experiments, all heparinized surfaces prolonged occlusion time longer than controls. However, SPUU-PEO surfaces did not prolong occlusion time when compared to Biomer, although these surfaces suppressed protein adsorption and platelet interaction in vitro. The improved blood compatibility of SPUU-PEO-Heparin surfaces attest to the usefulness of this approach in improving the blood compatibility of blood contacting surfaces.
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192
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McCluskey S, Evans C, Lacey JH, Pearce JM, Jacobs H. Polycystic ovary syndrome and bulimia. Int J Gynaecol Obstet 1992. [DOI: 10.1016/0020-7292(92)91015-g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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193
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Acton D, Domen J, Jacobs H, Vlaar M, Korsmeyer S, Berns A. Collaboration of pim-1 and bcl-2 in lymphomagenesis. Curr Top Microbiol Immunol 1992; 182:293-8. [PMID: 1337029 DOI: 10.1007/978-3-642-77633-5_36] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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194
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Tenten A, Jacobs H. Partielle Substitution von Nickel durch Natrium in Nickel(II)-amid: Isolierte Na4Ni2(NH2)8 � 4NH3-Einheiten in Natriumtetraamidoniccolat(II)-diammoniakat. Z Anorg Allg Chem 1991. [DOI: 10.1002/zaac.19916040115] [Citation(s) in RCA: 4] [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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195
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Jacobs H, Metzner U, Kirchg�ssner R, Lutz HD, Beckenkamp K. Dynamik linearer Molek�lanionen in den Hydrogensulfiden von Natrium, Kalium und Rubidium: Differential-Scanning-Kalorimetrie, R�ntgen- und Neutronenbeugung. Z Anorg Allg Chem 1991. [DOI: 10.1002/zaac.19915980117] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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196
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Jacobs H, Zachwieja U. Kupferpalladiumnitride, Cu3PdxN mit x = 0,020 und 0,989, Perowskite mit “bindender 3d10-4d10-Wechselwirkung”. ACTA ACUST UNITED AC 1991. [DOI: 10.1016/0022-5088(91)90063-a] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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197
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198
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Jacobs H, Metzner U. Ungew�hnliche H-Br�ckenbindungen in Natriumhydroxidmonohydrat: R�ntgen- und Neutronenbeugung an NaOH � H2O bzw. NaOD � D2O. Z Anorg Allg Chem 1991. [DOI: 10.1002/zaac.19915970113] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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199
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200
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McCluskey S, Evans C, Lacey JH, Pearce JM, Jacobs H. Polycystic ovary syndrome and bulimia. Fertil Steril 1991; 55:287-91. [PMID: 1991526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
One hundred fifty-three patients classified as suffering from polycystic ovarian syndrome (PCOS) and 109 patients who were suffering from a clear organic disorder or endocrinopathy received the bulimia investigation test (Edinburgh) (BITE) questionnaire for abnormal eating behaviors. Patients with PCOS showed a significant increase in their mean BITE score for approximately a third had abnormal eating patterns, and 6% have scores suggestive of clinical bulimia compared with only 1% of women in the group with organic endocrinopathies. The work suggests that women with PCOS should be screened for abnormal eating behaviors and raises the possibility that treatment by psychological means should be considered when abnormal eating behaviors are present.
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