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Mandelbaum A, Etinger A. Formation and collision-induced dissociation behaviour of doubly charged gas-phase fullerene anions C602−, C702− and higher homologues. Collision-induced electron-stripping process. ACTA ACUST UNITED AC 1993. [DOI: 10.1002/oms.1210280503] [Citation(s) in RCA: 12] [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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52
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Zeier M, Geberth S, Schmidt KG, Mandelbaum A, Ritz E. Elevated blood pressure profile and left ventricular mass in children and young adults with autosomal dominant polycystic kidney disease. J Am Soc Nephrol 1993; 3:1451-7. [PMID: 8490116 DOI: 10.1681/asn.v381451] [Citation(s) in RCA: 67] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Twelve children (< 15 yr) and 12 young adults with autosomal dominant polycystic kidney disease (ADPKD) confirmed by ultrasonography and 24 nonaffected individuals matched for age, sex, and body surface area were examined with ambulatory blood pressure monitoring and echocardiography. All patients and controls had normal renal function (median serum creatinine, 0.85 mg/dL; range, 0.5 to 1.1). In children, daytime and nighttime blood pressures were not significantly different from those of controls; the median left ventricular mass index (in grams per square meter) was higher in patients (66.6 g/m2) than in controls (61.3 g/m2; P < 0.002), although all values remained within the normal range. In young adults with ADPKD, mean arterial blood pressure was significantly higher than that in controls both during daytime (98.3 mm Hg; range, 74 to 126 versus 90.6 mm Hg; range, 73 to 116; P < 0.006) and during nighttime (83.2 mm Hg; range, 66.5 to 125 versus 79.0 mm Hg; range, 63 to 91; P < 0.05). In parallel, the median left ventricular mass index was significantly higher in young adults (81.8 g/m2; range, 62 to 174 versus 64.3 g/m2; range, 52 to 102; P < 0.02). The results document that ambulatory daytime and nighttime blood pressures and left ventricular mass indices are higher in asymptomatic carriers of the ADPKD trait compared with controls, although most values are still within the normal range.
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Clorius JH, Reinbold F, Hupp T, Mandelbaum A, Schmidlin P, van Kaick G. Renovascular hypertension: a perfusion disturbance that escaped recognition. J Nucl Med 1993; 34:48-56. [PMID: 8418270] [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] Open
Abstract
A bilateral, exercise-mediated, hippurate transport disturbance was previously described when patients with fixed renovascular hypertension were imaged with o-iodo-hippurate. This study sought to test the hypothesis that patients with an abnormal exercise scintigram have a perfusion abnormality characterized by dysregulation of renal blood flow. We imaged 23 patients with hypertension and angiographically documented renovascular disease in the supine position, as well as during upright exercise. Seven normotensive volunteers served as controls. We measured the resting glomerular filtration rate (GFR) and the effective renal plasma flow (ERPF) with a single compartment radiotracer infusion clearance. The clearance examination also included a measurement period with 25 watt ergometric exercise. Nine hypertensive patients had normal exercise renograms. These patients had age-appropriate clearance values at rest and during exercise, as well as age-appropriate best-organ (generally without stenosis) GFR and ERPF values. The filtration fraction (FF) was 0.21 at rest and 0.22 during exercise. Fourteen hypertensive patients had a bilateral, exercise-induced disturbance of hippurate transport. In these patients, the global resting GFRs and ERPFs were decreased 40% from age-appropriate predicted values. The FF remained at 0.20. Light exercise caused a pronounced contraction of GFR and a less severe reduction in the ERPF. During exercise the mean filtration fraction was only 0.12. The exercise-induced reduction in the clearance values was bilateral, which indicated that the perfusion of nonstenosed organs was compromised as well. We suggest that the described perfusion abnormality occupies a relevant position during the maintenance phase of fixed renovascular hypertension.
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54
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Devane WA, Hanus L, Breuer A, Pertwee RG, Stevenson LA, Griffin G, Gibson D, Mandelbaum A, Etinger A, Mechoulam R. Isolation and structure of a brain constituent that binds to the cannabinoid receptor. Science 1992; 258:1946-9. [PMID: 1470919 DOI: 10.1126/science.1470919] [Citation(s) in RCA: 3864] [Impact Index Per Article: 120.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Arachidonylethanolamide, an arachidonic acid derivative in porcine brain, was identified in a screen for endogenous ligands for the cannabinoid receptor. The structure of this compound, which has been named "anandamide," was determined by mass spectrometry and nuclear magnetic resonance spectroscopy and was confirmed by synthesis. Anandamide inhibited the specific binding of a radiolabeled cannabinoid probe to synaptosomal membranes in a manner typical of competitive ligands and produced a concentration-dependent inhibition of the electrically evoked twitch response to the mouse vas deferens, a characteristic effect of psychotropic cannabinoids. These properties suggest that anandamide may function as a natural ligand for the cannabinoid receptor.
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55
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Vidavsky I, Mandelbaum A. The mechanism of formation of alkoxybenzylidene [PhCHOR]+ ions from mixed dialkyl esters of phenylsuccinic acid upon electron ionization. Methoxy group migration between two carbonyl groups. ACTA ACUST UNITED AC 1992. [DOI: 10.1002/oms.1210270429] [Citation(s) in RCA: 2] [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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56
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Mandelbaum A, Müller D, Richter W, Vidavsky I. Intramolecular hydrogen—deuterium exchange in isomeric methyl ethyl esters of phenylmaleic, -fumaric, and -succinic acids under chemical ionization: low energy CID study and geometrical requirements of the exchange. ACTA ACUST UNITED AC 1990. [DOI: 10.1016/0168-1176(90)85095-j] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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57
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Ritz E, Rambausek M, Mall G, Ruffmann K, Mandelbaum A. Cardiac changes in uraemia and their possible relationship to cardiovascular instability on dialysis. Nephrol Dial Transplant 1990; 5 Suppl 1:93-7. [PMID: 2151743 DOI: 10.1093/ndt/5.suppl_1.93] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
In the past, cardiac changes in renal failure have commonly been ascribed to hypertension and poorly specified toxic effects ('uraemic cardiomyopathy'). Our recent experimental and clinical studies suggest (a) that cardiac hypertrophy can be dissociated from hypertension and that blood pressures may have only a permissive role, (b) that experimental uraemia is associated with specific activation of pericytes and intermyocardiocytic fibrosis. Cardiac hypertrophy not correlated with elevated blood pressure, and intermyocardiocytic fibrosis not observed in similarly hypertensive non-uraemic patients, have recently been documented in dialysis patients. The implications of these findings may be (a) electrical instability and predisposition to a sudden cardiac death and (b) diastolic cardiac malfunction with impaired LV filling and predisposition to dialysis hypotension. Some evidence for the latter possibility is provided.
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Ruffmann K, Mandelbaum A, Bommer J, Schmidli M, Ritz E. Doppler echocardiographic findings in dialysis patients. Nephrol Dial Transplant 1990; 5:426-31. [PMID: 2122318 DOI: 10.1093/ndt/5.6.426] [Citation(s) in RCA: 49] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
We used Doppler echocardiographic techniques firstly to examine left ventricular (LV) filling patterns in dialysis patients, secondly to analyse whether Doppler echocardiographic left ventricular filling pattern is different in patients with recurrent intradialytic hypotension, and thirdly to study the relation between blood pressure decrease during volume subtraction and left ventricular filling pattern. Indices of left ventricular filling patterns of 47 dialysis patients were consistently different when compared to normotensive healthy controls. To further assess the relation of left ventricular filling pattern to blood pressure stability on dialysis, we first compared 24 patients with stable intradialytic blood pressure (BP) and 23 patients with one or more episodes or intradialytic hypotension per month. Patients with recurrent intradialytic hypotension had lower predialysis blood pressure (MAP 89 +/- 13 vs 96 +/- 14 mmHg), more severe concentric hypertrophy (left ventricular mass/volume ratio 2.7 +/- 1.4 vs 2.0 +/- 0.7), and impaired left ventricular filling (Doppler) as indicated by the ratio of early diastolic vs late (atrial) filling (0.66 +/- 0.2 vs 0.95 +/- 0.22). Subsequently we assessed by Doppler technique the effect of a predetermined rate of volume subtraction (during one dialysis session) in patients with or without recurrent intradialytic hypotension. Diastolic filling indices deteriorated consistently prior to the reduction in blood pressure (early diastolic filling 26.8 +/- 15.2 vs 45.4 +/- 10.9% of diastolic filling). It is suggested that impaired left ventricular filling, presumably reflecting disturbed left ventricular compliance, is common in dialysis patients. Findings by noninvasive Doppler techniques suggest a role of abnormal left ventricular distensibility in recurrent dialysis hypotension.
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59
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Mandelbaum A, Ruffmann K, Ritz E. Comment on "Baroreceptor, not Left Ventricular, Dysfunction is the Cause of Hemodialysis Hypotension" by Heber et al. Clin Nephrol 1989; 32:249. [PMID: 2582652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
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60
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Mandelbaum A, Mueller DR, Richter WJ, Vidavsky I, Weisz A. Highly specific alcohol elimination from MH+ ions of isomeric methyl ethyl t-butylmaleates and t-butylsuccinates under low energy cid conditions. Stereochemistry and structure of gas-phase ions. ACTA ACUST UNITED AC 1989. [DOI: 10.1002/oms.1210240926] [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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61
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Ulmer HE, Mandelbaum A, Schmidt W. [Prenatal treatment of fetal heart diseases]. DER GYNAKOLOGE 1988; 21:138-47. [PMID: 3042544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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62
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Mandelbaum A. Adolescents and their aging parents. Bull Menninger Clin 1988; 52:246-58. [PMID: 3382823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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63
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Weisz A, Mandelbaum A, Blum W, Domon B, Muller D, Richter WJ, Shabanowitz J, Hunt DF. Application of low energy CID in the determination of structures of [M - halogen]+ ions obtained from diethyl halosuccinates under electron impact. ACTA ACUST UNITED AC 1987. [DOI: 10.1002/oms.1210220202] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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64
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Weisz A, Iberkleid E, Mandelbaum A, Blum W, Richter WJ. Configurational assignment of fragment ions by CID. Stereochemistry and mechanism of retro-Diels-Alder fragmentation accompanied by hydrogen transfer in gas-phase cations. ACTA ACUST UNITED AC 1987. [DOI: 10.1002/oms.1210220103] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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65
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Weisz A, Mandelbaum A, Shabanowitz J, Hunt DF. The effect of configuration of gas phase protonated ethenedicarboxylates on their low energy collision induced dissociation behaviour. ACTA ACUST UNITED AC 1984. [DOI: 10.1002/oms.1210190508] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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66
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Dynkin EB, Mandelbaum A. Symmetric Statistics, Poisson Point Processes, and Multiple Wiener Integrals. Ann Stat 1983. [DOI: 10.1214/aos/1176346241] [Citation(s) in RCA: 78] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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67
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Mandelbaum A, Weisz A, Karpati A. Non-stereospecific hydrogen migrations accompanying Retro-Diels-Alder fragmentations in some adducts of cyclopentadiene and 1,3-cyclohexadiene under electron impact. ACTA ACUST UNITED AC 1983. [DOI: 10.1016/0020-7381(83)87222-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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68
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Bel P, Mandelbaum A. Retro diels-alder fragmentation of cyclohexenes and tetralins under electron impact. ACTA ACUST UNITED AC 1981. [DOI: 10.1002/oms.1210161110] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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69
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Mandelbaum A, Vanderbei RJ. Optimal stopping and supermartingales over partially ordered sets. Probab Theory Relat Fields 1981. [DOI: 10.1007/bf00535493] [Citation(s) in RCA: 48] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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70
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Mandelbaum A. Family characteristics of patients with borderline and narcissistic disorders. Bull Menninger Clin 1980; 44:201-11. [PMID: 7378620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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71
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Kehr P, Lang G, Paternotte H, Issa JB, Mandelbaum A. L'uncoforaminectomie de Jung dans le traitement de l'arthrose cervicale et dans le syndrome cervical post-traumpatique. INTERNATIONAL ORTHOPAEDICS 1979. [DOI: 10.1007/bf00266880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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72
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Kehr P, Lang G, Mathevon H, Mandelbaum A. [17. Uncusectomy and uncoforaminectomy. Uncusectomy and uncoforaminectomy: 10-year results (author's transl)]. DER ORTHOPADE 1979; 8:215-7. [PMID: 542291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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73
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Mandelbaum A. A family centered approach to residential treatment. Bull Menninger Clin 1977; 41:27-39. [PMID: 843666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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74
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Mandelbaum A. Diagnosis in family treatment. Bull Menninger Clin 1976; 40:497-505. [PMID: 990558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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75
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76
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Weinstein S, Gil-Av E, Leftin JH, Levy EC, Mandelbaum A. The effect of molecular geometry on the fragmentation of methyl esters of cyclobut-3-ene-1,2-dicarboxylic acids. ACTA ACUST UNITED AC 1974. [DOI: 10.1002/oms.1210090806] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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77
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78
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Mandelbaum A. Family process in the diagnosis and treatment of children and adolescents. Bull Menninger Clin 1971; 35:153-66. [PMID: 5089242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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79
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Berti G, Bottari F, Marsili A, Morelli I, Mandelbaum A. Boron trifluoride-catalysed rearrangements of some tetrasubstituted neotriterpene epoxides—I. Tetrahedron 1971. [DOI: 10.1016/s0040-4020(01)91613-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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80
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Gil-Av E, Leftin JH, Mandelbaum A, Weinstein S. The effect of molecular geometry on the electron-impact-induced fragmentation of 3,4-diethylmuconates. ACTA ACUST UNITED AC 1970. [DOI: 10.1002/oms.1210040148] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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81
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Caspi E, Greig JB, Zander JM, Mandelbaum A. Incorporation of deuterium from deuterium oxide into tetrahymanol biosynthesised from squalene. ACTA ACUST UNITED AC 1969. [DOI: 10.1039/c29690000028] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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82
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Mandelbaum A. The group process in helping parents of retarded children. CHILDREN (WASHINGTON, D.C.) 1967; 14:227-32. [PMID: 4283835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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83
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Berti G, Bottari F, Marsili A, Morelli I, Mandelbaum A. The isolation of serratene from Polypodium vulgare. ACTA ACUST UNITED AC 1967. [DOI: 10.1039/c19670000050] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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84
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Mandelbaum A, Ginsburg D. Studies in mass spectrometry. IV. Steric direction of fragmentation in Cis- and trans-b:c ring-fused morphine derivates. Tetrahedron Lett 1965:2479-89. [PMID: 5843627 DOI: 10.1016/s0040-4039(01)84010-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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85
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Mandelbaum A, Neuwirth Z, Cais M. Organo-metallic Studies. VII. The Resolution of an Arenechromium Tricarbonyl Racemic Mixture. Inorg Chem 1963. [DOI: 10.1021/ic50009a006] [Citation(s) in RCA: 32] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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