1
|
Wu Z, Yin Y, Liu R, Li X, Sun Y, Yau SY, Wu L, Liu Y, Adzic M, Zhang H, Chen G. A refined formula derived from Jiawei-Xiaoyao Pill exerts rapid antidepressant-like effects in LPS-induced depression by reducing neuroinflammation and restoring neuroplasticity signaling. JOURNAL OF ETHNOPHARMACOLOGY 2024:118647. [PMID: 39094756 DOI: 10.1016/j.jep.2024.118647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2024] [Revised: 07/21/2024] [Accepted: 07/29/2024] [Indexed: 08/04/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Jiawei-Xiaoyao Pill (JWX), a classic formula in traditional Chinese medicine, is derived from Xiaoyao Pill by adding significant amounts of Gardeniae Fructus (GF) and Moutan Cortex (MC). It is frequently used for the treatment of depression. JWX has been demonstrated to uniquely elicit rapid antidepressant-like effects within the prescribed dosage range. To date, GF has been shown to have rapid antidepressant-like effects, but a much higher dose is required than its proportion in JWX. It is assumed that the synergism of GF with a minimum number of other herbs in JWX serves as a refined formula that exerts these rapid antidepressant-like effects. Identification of a refined formula is important for prioritizing the herbs and ingredients to optimize the quality control of JWX. However, such a refined formula for JWX has not been identified yet AIM OF THE STUDY: Here we aimed to identify a refined formula derived from JWX for optimized rapid antidepressant-like effects. Since the neuroinflammation mechanism involving in depression treatment has not been previously investigated for JWX, we tested the mechanism for both JWX and the refined formula MATERIALS AND METHODS: Individual herbs (MC; ASR, Angelica Sinensis Radix; Bupleuri Radix; Paeonia Radix Alba) that show antidepressant-like responses were mixed with GF at the proportional dosage in JWX to identify the refined formula. Rapid antidepressant-like effects were assessed by using NSF (Novelty Suppressed Feeding Test) and other behavioral tests following a single administration. The identified formula was further tested using a lipopolysaccharide (LPS)-induced depressive model, and the molecular signaling mechanisms were investigated using western blot analysis, immunofluorescence, and pharmacological inhibition of mTOR signaling. Scopolamine (Scop) is used as a positive control for induction of rapid antidepressant effects RESULTS: A combination of GF, MC and ASR (GMA) at their dosages proportional to JWX induced behavioral signs of rapid antidepressant-like responses in both normal and LPS-treated mice, with the antidepressant-like effects sustained for 5 d. Similar to JWX or Scop, GMA rapidly reduced the neuroinflammation signaling of Iba-1-NF-кB, enhanced neuroplasticity signaling of CaMKII-mTOR-BDNF, and attenuated the upregulated expressions of the NMDAR sub-units GluN1 and GluN2B in the hippocampus of LPS-treated mice. GMA, JWX and Scop rapidly restored the number of BDNF-positive cells reduced by LPS treatment, in the CA3 region of the hippocampus. Furthermore, rapamycin, a selective inhibitor of mTOR, blunted the rapid antidepressant-like effects and hippocampal BDNF signaling upregulation by GMA CONCLUSION: GMA may serve as a refined formula from JWX, capable of inducing rapid antidepressant-like effects. In LPS-induced depression model, the effects of GMA were mediated via rapidly alleviating neuroinflammation and enhancing neuroplasticity.
Collapse
Affiliation(s)
- Zhangjie Wu
- Interdisciplinary Institute for Personalized Medicine in Brain Disorders, School of Chinese Medicine, Jinan University, Guangzhou, 510632, PR China; Zhuhai Institute of Jinan University, Zhuhai, 519070, PR China; Guangdong-Hong Kong-Macao Joint Laboratory of Traditional Chinese Medicine on Brain-Peripheral Homeostasis and Comprehensive Health, Jinan University, Guangzhou, 510632, PR China; Departments of Psychiatry & Clinical and Translational Institute of Psychiatric Disorders, First Affiliated Hospital of Jinan University, Guangzhou, 510632, PR China
| | - Ying Yin
- Interdisciplinary Institute for Personalized Medicine in Brain Disorders, School of Chinese Medicine, Jinan University, Guangzhou, 510632, PR China; Zhuhai Institute of Jinan University, Zhuhai, 519070, PR China; Guangdong-Hong Kong-Macao Joint Laboratory of Traditional Chinese Medicine on Brain-Peripheral Homeostasis and Comprehensive Health, Jinan University, Guangzhou, 510632, PR China; Departments of Psychiatry & Clinical and Translational Institute of Psychiatric Disorders, First Affiliated Hospital of Jinan University, Guangzhou, 510632, PR China
| | - Ruiyi Liu
- Interdisciplinary Institute for Personalized Medicine in Brain Disorders, School of Chinese Medicine, Jinan University, Guangzhou, 510632, PR China; Zhuhai Institute of Jinan University, Zhuhai, 519070, PR China; Guangdong-Hong Kong-Macao Joint Laboratory of Traditional Chinese Medicine on Brain-Peripheral Homeostasis and Comprehensive Health, Jinan University, Guangzhou, 510632, PR China; Departments of Psychiatry & Clinical and Translational Institute of Psychiatric Disorders, First Affiliated Hospital of Jinan University, Guangzhou, 510632, PR China
| | - Xianhui Li
- Interdisciplinary Institute for Personalized Medicine in Brain Disorders, School of Chinese Medicine, Jinan University, Guangzhou, 510632, PR China; Zhuhai Institute of Jinan University, Zhuhai, 519070, PR China; Guangdong-Hong Kong-Macao Joint Laboratory of Traditional Chinese Medicine on Brain-Peripheral Homeostasis and Comprehensive Health, Jinan University, Guangzhou, 510632, PR China
| | - Yan Sun
- Interdisciplinary Institute for Personalized Medicine in Brain Disorders, School of Chinese Medicine, Jinan University, Guangzhou, 510632, PR China; Zhuhai Institute of Jinan University, Zhuhai, 519070, PR China; Guangdong-Hong Kong-Macao Joint Laboratory of Traditional Chinese Medicine on Brain-Peripheral Homeostasis and Comprehensive Health, Jinan University, Guangzhou, 510632, PR China; Departments of Psychiatry & Clinical and Translational Institute of Psychiatric Disorders, First Affiliated Hospital of Jinan University, Guangzhou, 510632, PR China; Key Laboratory of Integrative Biomedicine for Brain Diseases, School of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, PR China
| | - Suk-Yu Yau
- Department of Rehabilitation Sciences, Hong Kong Polytechnic University, Hong Kong PR China
| | - Lei Wu
- Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing, 210029, PR China
| | - Yan Liu
- Interdisciplinary Institute for Personalized Medicine in Brain Disorders, School of Chinese Medicine, Jinan University, Guangzhou, 510632, PR China; Zhuhai Institute of Jinan University, Zhuhai, 519070, PR China
| | - Miroslav Adzic
- "Vinča Institute" of Nuclear Sciences, Laboratory of Molecular Biology and Endocrinology 090, University of Belgrade, 11001 Belgrade, Serbia
| | - Hailou Zhang
- Interdisciplinary Institute for Personalized Medicine in Brain Disorders, School of Chinese Medicine, Jinan University, Guangzhou, 510632, PR China; Zhuhai Institute of Jinan University, Zhuhai, 519070, PR China; Guangdong-Hong Kong-Macao Joint Laboratory of Traditional Chinese Medicine on Brain-Peripheral Homeostasis and Comprehensive Health, Jinan University, Guangzhou, 510632, PR China; Departments of Psychiatry & Clinical and Translational Institute of Psychiatric Disorders, First Affiliated Hospital of Jinan University, Guangzhou, 510632, PR China.
| | - Gang Chen
- Interdisciplinary Institute for Personalized Medicine in Brain Disorders, School of Chinese Medicine, Jinan University, Guangzhou, 510632, PR China; Zhuhai Institute of Jinan University, Zhuhai, 519070, PR China; Guangdong-Hong Kong-Macao Joint Laboratory of Traditional Chinese Medicine on Brain-Peripheral Homeostasis and Comprehensive Health, Jinan University, Guangzhou, 510632, PR China; Departments of Psychiatry & Clinical and Translational Institute of Psychiatric Disorders, First Affiliated Hospital of Jinan University, Guangzhou, 510632, PR China.
| |
Collapse
|
2
|
Favere K, Van Hecke M, Eens S, Bosman M, Delputte PL, De Sutter J, Fransen E, Roskams T, Guns PJ, Heidbuchel H. The influence of endurance exercise training on myocardial fibrosis and arrhythmogenesis in a coxsackievirus B3 myocarditis mouse model. Sci Rep 2024; 14:12653. [PMID: 38825590 PMCID: PMC11144711 DOI: 10.1038/s41598-024-61874-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Accepted: 05/10/2024] [Indexed: 06/04/2024] Open
Abstract
Nonischaemic myocardial fibrosis is associated with cardiac dysfunction, malignant arrhythmias and sudden cardiac death. In the absence of a specific aetiology, its finding as late gadolinium enhancement (LGE) on cardiac magnetic resonance imaging is often attributed to preceding viral myocarditis. Athletes presenting with ventricular arrhythmias often have nonischaemic LGE. Previous studies have demonstrated an adverse effect of exercise on the course of acute viral myocarditis. In this study, we have investigated, for the first time, the impact of endurance training on longer-term outcomes such as myocardial fibrosis and arrhythmogenicity in a murine coxsackievirus B3 (CVB)-induced myocarditis model. Male C57BL/6J mice (n = 72) were randomly assigned to 8 weeks of forced treadmill running (EEX) or no exercise (SED). Myocarditis was induced 2 weeks later by a single intraperitoneal injection with CVB, versus vehicle in the controls (PBS). In a separate study, mice (n = 30) were subjected to pretraining for 13 weeks (preEEX), without continuation of exercise during myocarditis. Overall, continuation of exercise resulted in a milder clinical course of viral disease, with less weight loss and better preserved running capacity. CVB-EEX and preEEX-CVB mice tended to have a lower mortality rate. At sacrifice (i.e. 6 weeks after inoculation), the majority of virus was cleared from the heart. Histological assessment demonstrated prominent myocardial inflammatory infiltration and cardiomyocyte loss in both CVB groups. Inflammatory lesions in the CVB-EEX group contained higher numbers of pro-inflammatory cells (iNOS-reactive macrophages and CD8+ T lymphocytes) compared to these in CVB-SED. Treadmill running during myocarditis increased interstitial fibrosis [82.4% (CVB-EEX) vs. 56.3% (CVB-SED); P = 0.049]. Additionally, perivascular and/or interstitial fibrosis with extensive distribution was more likely to occur with exercise [64.7% and 64.7% (CVB-EEX) vs. 50% and 31.3% (CVB-SED); P = 0.048]. There was a numerical, but not significant, increase in the number of scars per cross-section (1.9 vs. 1.2; P = 0.195), with similar scar distribution and histological appearance in CVB-EEX and CVB-SED. In vivo electrophysiology studies did not induce sustained monomorphic ventricular tachycardia, only nonsustained (usually polymorphic) runs. Their cumulative beat count and duration paralleled the increased fibrosis between CVB-EEX and CVB-SED, but the difference was not significant (P = 0.084 for each). Interestingly, in mice that were subjected to pretraining only without continuation of exercise during myocarditis, no differences between pretrained and sedentary mice were observed at sacrifice (i.e. 6 weeks after inoculation and training cessation) with regard to myocardial inflammation, fibrosis, and ventricular arrhythmogenicity. In conclusion, endurance exercise during viral myocarditis modulates the inflammatory process with more pro-inflammatory cells and enhances perivascular and interstitial fibrosis development. The impact on ventricular arrhythmogenesis requires further exploration.
Collapse
Affiliation(s)
- Kasper Favere
- Laboratory of Physiopharmacology, GENCOR, University of Antwerp, 2610, Antwerp, Belgium.
- Research Group Cardiovascular Diseases, GENCOR, University of Antwerp, 2610, Antwerp, Belgium.
- Department of Cardiology, Antwerp University Hospital, 2650, Antwerp, Belgium.
- Department of Internal Medicine, Ghent University, 9000, Ghent, Belgium.
| | - Manon Van Hecke
- Translational Cell and Tissue Research, Department of Imaging and Pathology, University of Leuven, 3000, Leuven, Belgium
| | - Sander Eens
- Laboratory of Physiopharmacology, GENCOR, University of Antwerp, 2610, Antwerp, Belgium
- Research Group Cardiovascular Diseases, GENCOR, University of Antwerp, 2610, Antwerp, Belgium
| | - Matthias Bosman
- Laboratory of Physiopharmacology, GENCOR, University of Antwerp, 2610, Antwerp, Belgium
| | - Peter L Delputte
- Laboratory of Microbiology, Parasitology and Hygiene, University of Antwerp, 2610, Antwerp, Belgium
| | - Johan De Sutter
- Department of Internal Medicine, Ghent University, 9000, Ghent, Belgium
| | - Erik Fransen
- Centre for Medical Genetics, University of Antwerp, 2610, Antwerp, Belgium
| | - Tania Roskams
- Translational Cell and Tissue Research, Department of Imaging and Pathology, University of Leuven, 3000, Leuven, Belgium
| | - Pieter-Jan Guns
- Laboratory of Physiopharmacology, GENCOR, University of Antwerp, 2610, Antwerp, Belgium
| | - Hein Heidbuchel
- Research Group Cardiovascular Diseases, GENCOR, University of Antwerp, 2610, Antwerp, Belgium
- Department of Cardiology, Antwerp University Hospital, 2650, Antwerp, Belgium
| |
Collapse
|
3
|
Bae HJ, Kim J, Bae HJ, Park K, Yang X, Cho YJ, Jung SY, Park SJ, Ryu JH. Effects of repetitive training on learning and memory performance of TLR2 KO mice. Behav Brain Res 2022; 426:113836. [DOI: 10.1016/j.bbr.2022.113836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 01/22/2022] [Accepted: 03/05/2022] [Indexed: 11/30/2022]
|
4
|
Yu X, Zhang H, Yuan M, Zhang P, Wang Y, Zheng M, Lv Z, Odhiambo WO, Li C, Liu C, Ma Y, Ji Y. Identification and characterization of a murine model of BCR‑ABL1+ acute B‑lymphoblastic leukemia with central nervous system metastasis. Oncol Rep 2019; 42:521-532. [PMID: 31173268 PMCID: PMC6610040 DOI: 10.3892/or.2019.7184] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 05/21/2019] [Indexed: 12/13/2022] Open
Abstract
Breakpoint cluster region (BCR)-Abelson murine leukemia (ABL)1+ acute B-lymphoblastic leukemia (B-ALL) is a disease associated with a dismal prognosis and a high incidence of central nervous system (CNS) metastasis. However, BCR-ABL1+ B-ALL with CNS infiltration has not been previously characterized, at least to the best of our knowledge. In the present study, a murine model of BCR-ABL1+ B-ALL with CNS metastasis was established using retroviral transduction. The vast majority of BCR-ABL1+ leukemic cells were found to be immature B cells with a variable proportion of pro-B and pre-B populations. The present results indicated that the BCR-ABL1+ B-leukemic cells expressed high levels integrin subunit alpha 6 (Itga6) and L-selectin adhesion molecules, and have an intrinsic ability to disseminate and accumulate in CNS tissues, predominantly in meninges. On the whole, these results provide an approach for addressing the mechanisms of BCR-ABL1+ B-ALL with CNS metastasis and may guide the development of novel therapeutic strategies.
Collapse
Affiliation(s)
- Xiaozhuo Yu
- Department of Pathogenic Biology and Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Centre, Xi'an, Shaanxi 710061, P.R. China
| | - Hua Zhang
- Department of Pathogenic Biology and Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Centre, Xi'an, Shaanxi 710061, P.R. China
| | - Meng Yuan
- Department of Pathogenic Biology and Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Centre, Xi'an, Shaanxi 710061, P.R. China
| | - Ping Zhang
- Department of Pathogenic Biology and Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Centre, Xi'an, Shaanxi 710061, P.R. China
| | - Yang Wang
- Department of Pathogenic Biology and Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Centre, Xi'an, Shaanxi 710061, P.R. China
| | - Mingzhe Zheng
- Department of Pathogenic Biology and Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Centre, Xi'an, Shaanxi 710061, P.R. China
| | - Zhuangwei Lv
- Department of Pathogenic Biology and Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Centre, Xi'an, Shaanxi 710061, P.R. China
| | - Woodvine Otieno Odhiambo
- Department of Pathogenic Biology and Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Centre, Xi'an, Shaanxi 710061, P.R. China
| | - Canyu Li
- Department of Pathogenic Biology and Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Centre, Xi'an, Shaanxi 710061, P.R. China
| | - Chengcheng Liu
- Department of Pathogenic Biology and Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Centre, Xi'an, Shaanxi 710061, P.R. China
| | - Yunfeng Ma
- Department of Pathogenic Biology and Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Centre, Xi'an, Shaanxi 710061, P.R. China
| | - Yanhong Ji
- Department of Pathogenic Biology and Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Centre, Xi'an, Shaanxi 710061, P.R. China
| |
Collapse
|
5
|
Herbst LS, Gaigher T, Siqueira AA, Joca SRL, Sampaio KN, Beijamini V. New evidence for refinement of anesthetic choice in procedures preceding the forced swimming test and the elevated plus-maze. Behav Brain Res 2019; 368:111897. [PMID: 30978407 DOI: 10.1016/j.bbr.2019.04.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 04/07/2019] [Accepted: 04/08/2019] [Indexed: 01/04/2023]
Abstract
Previous studies indicated that some general anesthetics induce long-term antidepressant and/or anxiolytic-like effects. This raises the concern about the use of anesthesia in surgeries that precede psychopharmacological tests, since it may be a potential bias on results depending on the experimental design used. Thus, we evaluated whether general anesthetics used in surgeries preceding psychopharmacological tests would affect rats behavior in tests predictive of antidepressant or anxiolytic-like effects. We tested if a single exposure to sub-anesthetic or anesthetic doses of tribromoethanol, chloral hydrate, thiopental or isoflurane would change rats behavior in the forced swimming test (FST) or in the elevated plus-maze (EPM) test, at 2 h or 7 days after their administration. We also evaluated whether prior anesthesia would interfere in the detection of the antidepressant-like effect of imipramine or the anxiolytic-like effect of diazepam. Previous anesthesia with the aforementioned anesthetics did not change rats behaviors in FST per se nor it changed the antidepressant-like effect induced by imipramine treatment. Rats previously anesthetized with tribromoethanol or chloral hydrate exhibited, respectively, anxiogenic-like and anxiolytic-like behaviors in the EPM. Prior anesthesia with thiopental or isoflurane did not produce any per se effect in rats behaviors in the EPM nor disturbed the anxiolytic-like effect of diazepam. Our results suggest that, in our experimental conditions, tribromoethanol and chloral hydrate are improper anesthetics for surgeries that precede behavioral analysis in the EPM. Isoflurane or thiopental may be suitable for anesthesia before evaluation in the EPM or in the FST.
Collapse
Affiliation(s)
- L S Herbst
- Pharmaceutical Sciences Graduate Program, Health Sciences Center, Federal University of Espirito Santo, Vitoria, ES 29043-900, Brazil
| | - T Gaigher
- Department of Pharmaceutical Sciences, Health Sciences Center, Federal University of Espirito Santo, Vitoria, ES 29043-900, Brazil
| | - A A Siqueira
- Pharmaceutical Sciences Graduate Program, Health Sciences Center, Federal University of Espirito Santo, Vitoria, ES 29043-900, Brazil
| | - S R L Joca
- Department of Physics and Chemistry, School of Pharmaceutical Sciences of Ribeirao Preto, USP, Ribeirao Preto, Brazil; Aarhus Institute of Advanced Studies, AIAS, Aarhus University, Aarhus, Denmark
| | - K N Sampaio
- Pharmaceutical Sciences Graduate Program, Health Sciences Center, Federal University of Espirito Santo, Vitoria, ES 29043-900, Brazil; Department of Pharmaceutical Sciences, Health Sciences Center, Federal University of Espirito Santo, Vitoria, ES 29043-900, Brazil
| | - V Beijamini
- Pharmaceutical Sciences Graduate Program, Health Sciences Center, Federal University of Espirito Santo, Vitoria, ES 29043-900, Brazil; Department of Pharmaceutical Sciences, Health Sciences Center, Federal University of Espirito Santo, Vitoria, ES 29043-900, Brazil.
| |
Collapse
|
6
|
Bratskaya S, Privar Y, Nesterov D, Modin E, Kodess M, Slobodyuk A, Marinin D, Pestov A. Chitosan Gels and Cryogels Cross-Linked with Diglycidyl Ethers of Ethylene Glycol and Polyethylene Glycol in Acidic Media. Biomacromolecules 2019; 20:1635-1643. [DOI: 10.1021/acs.biomac.8b01817] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Svetlana Bratskaya
- Institute of Chemistry Far Eastern Branch of the Russian Academy of Sciences, 159, prosp.100-letiya Vladivostoka, 690022 Vladivostok, Russia
| | - Yuliya Privar
- Institute of Chemistry Far Eastern Branch of the Russian Academy of Sciences, 159, prosp.100-letiya Vladivostoka, 690022 Vladivostok, Russia
| | - Denis Nesterov
- I. Ya. Postovsky
Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, 20, S. Kovalevskoy str., Yekaterinburg 620990, Russia
| | - Evgeny Modin
- CIC nanoGUNE, Donostia, San Sebastian 20018, Spain
| | - Mikhail Kodess
- I. Ya. Postovsky
Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, 20, S. Kovalevskoy str., Yekaterinburg 620990, Russia
| | - Arseny Slobodyuk
- Institute of Chemistry Far Eastern Branch of the Russian Academy of Sciences, 159, prosp.100-letiya Vladivostoka, 690022 Vladivostok, Russia
| | - Dmitry Marinin
- Institute of Chemistry Far Eastern Branch of the Russian Academy of Sciences, 159, prosp.100-letiya Vladivostoka, 690022 Vladivostok, Russia
| | - Alexander Pestov
- I. Ya. Postovsky
Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, 20, S. Kovalevskoy str., Yekaterinburg 620990, Russia
| |
Collapse
|
7
|
Maheras KJ, Pindolia K, Wolf B, Gow A. Developmental window of sensorineural deafness in biotinidase-deficient mice. J Inherit Metab Dis 2017; 40:733-744. [PMID: 28516283 PMCID: PMC8148422 DOI: 10.1007/s10545-017-0049-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2016] [Revised: 04/07/2017] [Accepted: 04/10/2017] [Indexed: 10/19/2022]
Abstract
Biotinidase deficiency is an autosomal recessively inherited disorder that results in the inability to recycle the vitamin, biotin. If untreated, the disorder can result in a range of neurological and cutaneous symptoms, including sensorineural deficits and deafness. To understand early mechanistic abnormalities that may precede more generalized and nonspecific effects of metabolic deficits such as weight loss and acidosis, we have analyzed auditory brainstem responses (ABRs) in biotinidase-deficient knockout (Btd -/- ) mice in the periweaning period with or without dietary biotin supplementation. We find significant increases in the latency of wave V of the ABR elicited by pure tone stimuli at one octave intervals, which precede substantial increases in ABR thresholds. Finer interpeak latency analyses of these changes indicate they are confined to the latter ABR waves associated with the CNS and likely reflect slowed brainstem transmission time. In contrast, peripheral nervous system conduction velocity appears normal. Further, we find that biotin-supplementation after the onset of symptoms reverses the latency shifts, which has significant relevance for early treatment in patients. Finally, ABR latencies in Btd -/- mice fed a biotin-supplemented diet for the first month of life appear refractory to transmission time slowing during a subsequent bout of biotin deficiency. These data suggest a transient vulnerability window for biotin deficiency in the auditory brainstem. Finally, we also observe a developmental vulnerability window involving follicular melanosome production or melanocyte survival. Sensorineural deafness precedes peripheral hearing loss in developmental biotinidase deficiency and is transient if rescued by dietary biotin within a short developmental window.
Collapse
Affiliation(s)
- Kathleen June Maheras
- Center for Molecular Medicine and Genetics, Wayne State University School of Medicine, 3216 Scott Hall, 540 E Canfield Ave, Detroit, MI, 48201, USA
| | - Kirit Pindolia
- Center for Molecular Medicine and Genetics, Wayne State University School of Medicine, 3216 Scott Hall, 540 E Canfield Ave, Detroit, MI, 48201, USA
- Department of Research Administration, Henry Ford Hospital, Detroit, MI, 48202, USA
| | - Barry Wolf
- Center for Molecular Medicine and Genetics, Wayne State University School of Medicine, 3216 Scott Hall, 540 E Canfield Ave, Detroit, MI, 48201, USA
- Department of Research Administration, Henry Ford Hospital, Detroit, MI, 48202, USA
| | - Alexander Gow
- Center for Molecular Medicine and Genetics, Wayne State University School of Medicine, 3216 Scott Hall, 540 E Canfield Ave, Detroit, MI, 48201, USA.
- Carman and Ann Adams Department of Pediatrics, Detroit, MI, 48201, USA.
- Department of Neurology, Wayne State University School of Medicine, Detroit, MI, 48201, USA.
| |
Collapse
|
8
|
Labetalol Prevents Intestinal Dysfunction Induced by Traumatic Brain Injury. PLoS One 2015; 10:e0133215. [PMID: 26186619 PMCID: PMC4505891 DOI: 10.1371/journal.pone.0133215] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2014] [Accepted: 06/23/2015] [Indexed: 02/06/2023] Open
Abstract
Background Beta-adrenergic blockade has been hypothesized to have a protective effect on intestinal dysfunction and increased intestinal permeability associated with the epinephrine surge after traumatic brain injury (TBI). Methods Wister rats were subjected to either a weight drop TBI, and intraperitoneally injected or not with labetalol, or a sham procedure (18 rats per group). After 3, 6, or 12h (6 rats per subgroup), intestinal permeability to 4.4 kDa FITC-Dextran and plasma epinephrine levels were measured as was intestinal tight junction protein ZO-1 expression at 12h. Terminal ileum was harvested to measure levels of intestinal tumor necrosis factor (TNF)-α and to evaluate histopathology. Results In TBI group vs. sham group, intestinal permeability (P<0.01) was significantly higher at all time-points, and intestinal ZO-1 expression was lower at 12h. In TBI with vs. without labetalol group, 1) intestinal permeability was significantly lower at 6 and 12h (94.31±7.64 vs. 102.16±6.40 μg/mL; 110.21±7.52 vs. 118.95±7.11 μg/mL, respectively); 2) levels of plasma epinephrine and intestinal TNF-α were significantly lower at 3, 6 and 12h; and 3) intestinal ZO-1 expression was higher at 3, 6 and 12h (p=0.018). Histopathological evaluation showed that labetalol use preserved intestinal architecture throughout. Conclusion In a rat model of TBI, labetalol reduced TBI-induced sympathetic hyperactivity, and prevented histopathological intestinal injury accompanied by changes in gut permeability and gut TNF-α expression.
Collapse
|
9
|
Vieira RP, Ossig A, Perez JM, Grassi VG, Petzhold CL, Peres AC, Costa JM, Lona LMF. Styrene ATRP using the new initiator 2,2,2-tribromoethanol: Experimental and simulation approach. POLYM ENG SCI 2015. [DOI: 10.1002/pen.24113] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Roniérik P. Vieira
- Department of Chemistry and Chemical Engineering; Federal Institute of South of Minas Gerais; 1730 Aeroporto Av. 37550-000 Pouso Alegre MG Brazil
| | - Andréia Ossig
- Chemistry Institute, Federal University of Rio Grande do Sul 9500 Bento Gonçalves Av.; 91501-970 Porto Alegre RS Brazil
| | - Janaína M. Perez
- Chemistry Institute, Federal University of Rio Grande do Sul 9500 Bento Gonçalves Av.; 91501-970 Porto Alegre RS Brazil
| | - Vinícius G. Grassi
- Chemistry Institute, Federal University of Rio Grande do Sul 9500 Bento Gonçalves Av.; 91501-970 Porto Alegre RS Brazil
| | - Cesar L. Petzhold
- Chemistry Institute, Federal University of Rio Grande do Sul 9500 Bento Gonçalves Av.; 91501-970 Porto Alegre RS Brazil
| | - Augusto C. Peres
- Center for Research and Development; PETROBRAS 950 Horácio Macedo Av.; 21941-915 Rio de Janeiro RJ Brazil
| | - João M. Costa
- Center for Research and Development; PETROBRAS 950 Horácio Macedo Av.; 21941-915 Rio de Janeiro RJ Brazil
| | - Liliane M. F. Lona
- School of Chemical Engineering, University of Campinas 500 Albert Einstein Av.; 13083-852 Campinas SP Brazil
| |
Collapse
|
10
|
de Souza TKM, E Silva-Gondim MB, Rodrigues MCA, Guedes RCA. Anesthetic agents modulate ECoG potentiation after spreading depression, and insulin-induced hypoglycemia does not modify this effect. Neurosci Lett 2015; 592:6-11. [PMID: 25681772 DOI: 10.1016/j.neulet.2015.02.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Revised: 01/23/2015] [Accepted: 02/07/2015] [Indexed: 12/15/2022]
Abstract
Cortical spreading depression (CSD) is characterized by reversible reduction of spontaneous and evoked electrical activity of the cerebral cortex. Experimental evidence suggests that CSD may modulate neural excitability and synaptic activity, with possible implications for long-term potentiation. Systemic factors like anesthetics and insulin-induced hypoglycemia can influence CSD propagation. In this study, we examined whether the post-CSD ECoG potentiation can be modulated by anesthetics and insulin-induced hypoglycemia. We found that awake adult rats displayed increased ECoG potentiation after CSD, as compared with rats under urethane+chloralose anesthesia or tribromoethanol anesthesia. In anesthetized rats, insulin-induced hypoglycemia did not modulate ECoG potentiation. Comparison of two cortical recording regions in awake rats revealed a similarly significant (p<0.05) potentiation effect in both regions, whereas in the anesthetized groups the potentiation was significant only in the recording region nearer to the stimulating point. Our data suggest that urethane+chloralose and tribromoethanol anesthesia modulate the post-CSD potentiation of spontaneous electrical activity in the adult rat cortex, and insulin-induced hypoglycemia does not modify this effect. Data may help to gain a better understanding of excitability-dependent mechanisms underlying CSD-related neurological diseases.
Collapse
|