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Koerbel A, Wolf SA, Kiss A. Peduncular hallucinosis after sacrifice of veins of the petrosal venous complex for trigeminal neuralgia. Acta Neurochir (Wien) 2007; 149:831-2; discussion 832-3. [PMID: 17558458 DOI: 10.1007/s00701-007-1181-6] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2006] [Accepted: 05/03/2007] [Indexed: 11/30/2022]
Abstract
Peduncular hallucinosis is characterized by striking visual images, highly colored and mobile, which are recognized by the patient as imaginary. A 50-year-old-man underwent microvascular decompression for a classical right sided trigeminal neuralgia. During the procedure, the petrosal vein and a transverse pontine vein were sacrificed for trigeminal decompression. On the second postoperative day, the patient developed peduncular hallucinosis that disappeared on the forth postoperative day. This is the third case in the literature of peduncular hallucinosis after obliteration of veins of the petrosal venous complex for trigeminal neuralgia. The best policy in cerebellopontine angle surgery is to preserve the petrosal vein whenever possible to avoid complications related to venous congestion.
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Steiner B, Wolf SA, Akirnarli A, Kammertoens T, Wengner A, Nassenstein C, Braun A, Lipp M, Blankenstein T, Matzinger P, Kempermann G. CD4-positive periphere T-Lymphozyten als neuro-immunologische Regulatoren adulter hippokampaler Neurogenese. AKTUELLE NEUROLOGIE 2007. [DOI: 10.1055/s-2007-987794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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53
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Wolf SA, Kronenberg G, Lehmann K, Blankenship A, Overall R, Staufenbiel M, Kempermann G. Cognitive and physical activity differently modulate disease progression in the amyloid precursor protein (APP)-23 model of Alzheimer's disease. Biol Psychiatry 2006; 60:1314-23. [PMID: 16806094 DOI: 10.1016/j.biopsych.2006.04.004] [Citation(s) in RCA: 213] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2005] [Revised: 12/08/2005] [Accepted: 04/12/2006] [Indexed: 12/21/2022]
Abstract
BACKGROUND In aging mice, activity maintains hippocampal plasticity and adult hippocampal neurogenesis at a level corresponding to a younger age. Here we studied whether physical exercise and environmental enrichment would also affect brain plasticity in a mouse model of Alzheimer's disease (AD). METHODS Amyloid precursor protein (APP)-23 mice were housed under standard or enriched conditions or in cages equipped with a running wheel. We assessed beta-amyloid plaque load, adult hippocampal neurogenesis, spatial learning, and mRNA levels of trophic factors in the brain. RESULTS Despite stable beta-amyloid plaque load, enriched-living mice showed improved water maze performance, an up-regulation of hippocampal neurotrophin (NT-3) and brain-derived neurotrophic factor (BDNF) and increased hippocampal neurogenesis. In contrast, despite increased bodily fitness, wheel-running APP23 mice showed no change in spatial learning and no change in adult hippocampal neurogenesis but a down-regulation of hippocampal and cortical growth factors. CONCLUSIONS We conclude that structural and molecular prerequisites for activity-dependent plasticity are preserved in mutant mice with an AD-like pathology. Our study might help explain benefits of activity for the aging brain but also demonstrates differences between physical and more cognitive activity. It also suggests a possible cellular correlate for the dissociation between structural and functional pathology often found in AD.
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Bick-Sander A, Steiner B, Wolf SA, Babu H, Kempermann G. Running in pregnancy transiently increases postnatal hippocampal neurogenesis in the offspring. Proc Natl Acad Sci U S A 2006; 103:3852-7. [PMID: 16537457 PMCID: PMC1389702 DOI: 10.1073/pnas.0502644103] [Citation(s) in RCA: 89] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2005] [Indexed: 12/19/2022] Open
Abstract
Voluntary wheel running of mice in pregnancy and lactation led to a twofold increase in hippocampal precursor-cell proliferation and in the number of Prox1-expressing lineage-determined cells at postnatal day 8 (P8). At P36, the number of newly generated granule cells approximately doubled, resulting in a 40% higher total number of granule cells in pups from running dams as compared with controls. Cell proliferation at embryonic day 15 (E15), in contrast, was decreased in the progeny of exercising mice, and the birth weight was reduced. At P49, body weight had normalized, and hippocampal neurogenesis was not different between the two groups. mRNA for FGF2 was expressed at higher levels at E15 and P8 in runner pups, whereas VEGF was increased only at E15. Insulin-like growth factor did not show differences at any time point. At P36, no differences for any of the factors were found. Our data indicate that maternal behavior and physical activity affects infantile growth-factor expression and can transiently stimulate postnatal hippocampal development in the offspring.
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Wolf SA, Fisher J, Bechmann I, Steiner B, Kwidzinski E, Nitsch R. Neuroprotection by T-cells depends on their subtype and activation state. J Neuroimmunol 2002; 133:72-80. [PMID: 12446010 DOI: 10.1016/s0165-5728(02)00367-3] [Citation(s) in RCA: 59] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
This study analyzes how the antigen specificity, the subtype, and the activation state of T cells modulate their recently discovered neuroprotective potential. We assessed the prevention from neuronal damage in organotypic entorhinal-hippocampal slice cultures after co-culture with Th1 and Th2 cells either specific for myelin basic protein (MBP) or ovalbumin (OVA). We found that MBP-specific Th2 cells were the most effective in preventing central nervous system (CNS) tissue from secondary injury. This neuroprotective T cell effect appears to be mediated by soluble factors. After stimulation with phorbol myristate acetate and ionomycin, all T cells were most effective in preventing neuronal death. Our data show that the T cell subtype and activation state are important features in determining the neuroprotective potential of these cells.
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Wolf SA, Gimsa U, Bechmann I, Nitsch R. Differential expression of costimulatory molecules B7-1 and B7-2 on microglial cells induced by Th1 and Th2 cells in organotypic brain tissue. Glia 2001; 36:414-20. [PMID: 11746777 DOI: 10.1002/glia.1127] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Autoreactive T-cells are involved in demyelination, neurodegeneration, and the recruitment of peripheral macrophages and nonspecific activated T-cells in autoimmune diseases such as multiple sclerosis (MS). The ligation of costimulatory B7 molecules on microglia with CD28/CTLA-4 on T-cells is thought to be crucial to the onset and course of MS and its rodent model experimental autoimmune encephalomyelitis (EAE). It is currently unclear as to how far the nature of infiltrating T-cells has an impact on the expression of the B7 molecules on microglia, the resident antigen-presenting cells (APCs) of the brain. We studied the expression of B7-1 and B7-2 on microglia after encounter with preactivated Th1 and Th2 cells from transgenic mice whose T-cells express a receptor (TCR) either specific to myelin basic protein (MBP) or ovalbumin (OVA) using murine organotypic entorhinal-hippocampal slice cultures (OEHSC). Our main finding was that Th1 cells downregulate the constitutive expression of B7-2 and induce B7-1 expression while Th2 cells do not induce this B7-1 upregulation. The main difference between MBP- and OVA-specific cells was seen in experiments were Th1 cells had direct contact to APCs but not to brain tissue. In contrast to MBP-specific Th1 cells, OVA-specific Th1 cells required the addition of antigen to upregulate B7-1 and downregulate B7-2. When the cells were allowed to have contact to brain tissue, no difference was seen in the pattern of B7 regulation between OVA- and MBP-specific T-cells. Our data suggest that T-cells are able to modulate B7 expression on microglial cells in the brain independent of antigen presentation through TCR/MHC-II ligation but presumably by soluble mediators.
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Wolf SA, Awschalom DD, Buhrman RA, Daughton JM, von Molnár S, Roukes ML, Chtchelkanova AY, Treger DM. Spintronics: a spin-based electronics vision for the future. Science 2001; 294:1488-95. [PMID: 11711666 DOI: 10.1126/science.1065389] [Citation(s) in RCA: 1970] [Impact Index Per Article: 85.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
This review describes a new paradigm of electronics based on the spin degree of freedom of the electron. Either adding the spin degree of freedom to conventional charge-based electronic devices or using the spin alone has the potential advantages of nonvolatility, increased data processing speed, decreased electric power consumption, and increased integration densities compared with conventional semiconductor devices. To successfully incorporate spins into existing semiconductor technology, one has to resolve technical issues such as efficient injection, transport, control and manipulation, and detection of spin polarization as well as spin-polarized currents. Recent advances in new materials engineering hold the promise of realizing spintronic devices in the near future. We review the current state of the spin-based devices, efforts in new materials fabrication, issues in spin transport, and optical spin manipulation.
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Gimsa U, Wolf SA, Haas D, Bechmann I, Nitsch R. Th2 cells support intrinsic anti-inflammatory properties of the brain. J Neuroimmunol 2001; 119:73-80. [PMID: 11525802 DOI: 10.1016/s0165-5728(01)00343-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
In experimental autoimmune encephalomyelitis (EAE), Th1 cells are responsible for disease induction while Th2 cells can be protective. To address the mechanisms of this differential behavior, we utilized organotypic murine entorhinal-hippocampal slice cultures to analyze interactions between myelin basic protein-specific Th1 and Th2 cells with microglial cells. While both Th1 and Th2 cells induced CD40 expression, only Th1 cells induced intercellular adhesion molecule-1 (ICAM-1) expression on microglia. Moreover, Th2 cells prevented or even reversed Th1-induced ICAM-1 upregulation. Evidently, Th2 cells could diminish Th1-induced inflammatory reactions and actively support the resting state of microglia, which could be one mechanism of Th2-mediated remission of neuroinflammation during EAE.
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Wolf SA. Paul Tessier, creator of a new surgical specialty, is recipient of Jacobson Innovation Award. J Craniofac Surg 2001; 12:98-9. [PMID: 11314199 DOI: 10.1097/00001665-200101000-00019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Wolf SA, Maljanian R. Attention to detail crucial in designing a DM program. MANAGED CARE (LANGHORNE, PA.) 2000; 9:31-40. [PMID: 10977663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
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Wolf SA. Storing lifeblood. Cord blood stem cell banking. Am J Nurs 1999; 99:60-2, 64-6, 68. [PMID: 10456025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
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62
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Wolf SA. Cord blood banking: a promising new technology. Neonatal Netw 1998; 17:5-6. [PMID: 9668771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Kresin VZ, Wolf SA. Comment on "Observation of a possible oxygen isotope effect on the effective mass of carriers in YBa2Cu3O6.94". PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:15543-15544. [PMID: 9985625 DOI: 10.1103/physrevb.54.15543] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Kresin VZ, Wolf SA, Ovchinnikov YN. Effect of pressure on Tc and the "intrinsic" Tc of cuprates. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 53:11831-11836. [PMID: 9982811 DOI: 10.1103/physrevb.53.11831] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Adrian SD, Reeves ME, Wolf SA, Kresin VZ. Penetration depth in layered superconductors: Application to the cuprates and conventional multilayers. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 51:6800-6803. [PMID: 9977232 DOI: 10.1103/physrevb.51.6800] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Grossmann PA, Wolf SA, Hopkins JW, Paradise NF. The efficacy of laparoscopic examination of the internal inguinal ring in children. J Pediatr Surg 1995; 30:214-7; discussion 217-8. [PMID: 7738740 DOI: 10.1016/0022-3468(95)90562-6] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The ability of physicians to identify a patent processus vaginalis by laparoscopic examination of the internal ring is now well established, but the efficacy on patient outcome is not. The authors reviewed their experience to determine the effect of diagnostic laparoscopy of the internal ring on the management of children with inguinal hernias. The records of 150 children who underwent inguinal surgery were reviewed--75 before (group 1) and 75 after (group 2) pediatric laparoscopy was introduced into the authors' practice. The children in group 1 were selected for unilateral or bilateral surgery based on history, age, sex, side of presentation, and parental preference. For group 2, laparoscopy was an additional option offered to appropriate patients. Laparoscopy was performed in 43 group 2 patients, using an infraumbilical site. The minimum follow-up period was 2 years for group 1 and 1 year for group 2. The mean ages for groups 1 and 2 were 41.2 and 39.7 months, respectively. There were 61 boys and 14 girls in each group. The percentages of right (R), left (L), and bilateral (B) findings, based on clinical observation, were 56.0 (R), 29.3 (L), and 14.7 (B) for group 1, and 58.7 (R), 26.6 (L), and 14.7 (B) for group 2. The incidence of bilateral surgical exploration was similar for the two groups (group 1, 58.6%; group 2, 61.3%). The addition of laparoscopy significantly lowered the incidence of negative explorations (group 1, 16.0%; group 2, 2.6%; P < .01).(ABSTRACT TRUNCATED AT 250 WORDS)
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Kresin VZ, Wolf SA. Gaplessness and properties of layered superconductors: Application to high-Tc cuprates. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 51:1229-1235. [PMID: 9978278 DOI: 10.1103/physrevb.51.1229] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Wolf SA, Hopkins JW. Laparoscopic incidence of contralateral patent processus vaginalis in boys with clinical unilateral inguinal hernias. J Pediatr Surg 1994; 29:1118-20; discussion 1120-1. [PMID: 7965517 DOI: 10.1016/0022-3468(94)90291-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
In 38 boys with clinical unilateral inguinal hernias (CUIH), the contralateral processus vaginalis was examined laparoscopically before surgical manipulation at the time of elective inguinal herniorrhaphy. General anesthesia was used in each case, and a 30 degrees, 2.7-mm laparoscopic was introduced using standard techniques. Positive laparoscope findings prompted surgical exploration. The age range was 2 to 134 months. Twenty-four had a right CUIH, and 14 had a left CUIH. Overall, the contralateral processus vaginalis was patent in 52.6%, with 58.3% and 42.8% patency on the nonclinical left and right sides, respectively. In boys under 2 years of age, 50% of those with a right CUIH had a contralateral patent processus vaginalis, as did 60% of those with a left CUIH. In two of these 38 patients in whom there was no clinically proven hernia, the only patent processus vaginalis was on the side opposite the one with a clinical history. Laparoscopic examination of the internal inguinal ring provided accurate information useful in determining the need for contralateral inguinal exploration in these 38 children.
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Kresin VZ, Wolf SA. Microscopic model for the isotope effect in the high-Tc oxides. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 49:3652-3654. [PMID: 10011248 DOI: 10.1103/physrevb.49.3652] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Klein N, Tellmann N, Schulz H, Urban K, Wolf SA, Kresin VZ. Evidence of two-gap s-wave superconductivity in YBa2Cu3O7-x from microwave surface impedance measurements. PHYSICAL REVIEW LETTERS 1993; 71:3355-3358. [PMID: 10054952 DOI: 10.1103/physrevlett.71.3355] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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71
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Osofsky MS, Soulen RJ, Wolf SA, Broto JM, Rakoto H, Ousset JC, Coffe G, Askenazy S, Pari P, Bozovic I, Eckstein JN, Virshup GF. Anomalous temperature dependence of the upper critical magnetic field in Bi-Sr-Cu-O. PHYSICAL REVIEW LETTERS 1993; 71:2315-2318. [PMID: 10054642 DOI: 10.1103/physrevlett.71.2315] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Cohn JL, Kresin VZ, Reeves ME, Wolf SA. Superconducting-state thermal transport in YBa2Cu3O7- delta. PHYSICAL REVIEW LETTERS 1993; 71:1657. [PMID: 10054463 DOI: 10.1103/physrevlett.71.1657] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Reeves ME, Ditmars DA, Wolf SA, Vanderah TA, Kresin VZ. Evidence for strong electron-phonon coupling from the specific heat of YBa2Cu3O7- delta. PHYSICAL REVIEW. B, CONDENSED MATTER 1993; 47:6065-6068. [PMID: 10004556 DOI: 10.1103/physrevb.47.6065] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Strom U, Culbertson JC, Wolf SA, Gao F, Tanner DB, Carr GL. Far-infrared photoresponse of granular YBa2.1Cu3.4O7-x. PHYSICAL REVIEW. B, CONDENSED MATTER 1992; 46:8472-8479. [PMID: 10002611 DOI: 10.1103/physrevb.46.8472] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Kresin VZ, Wolf SA. Induced superconducting state and two-gap structure: Application to cuprate superconductors and conventional multilayers. PHYSICAL REVIEW. B, CONDENSED MATTER 1992; 46:6458-6471. [PMID: 10002335 DOI: 10.1103/physrevb.46.6458] [Citation(s) in RCA: 70] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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