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Chen Z, Li C, Zhou Y, Li P, Cao G, Qiao Y, Yao Y, Su J. Histone 3 lysine 9 acetylation-specific reprogramming regulates esophageal squamous cell carcinoma progression and metastasis. Cancer Gene Ther 2024; 31:612-626. [PMID: 38291129 DOI: 10.1038/s41417-024-00738-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 01/13/2024] [Accepted: 01/16/2024] [Indexed: 02/01/2024]
Abstract
Dysregulation of histone acetylation is widely implicated in tumorigenesis, yet its specific roles in the progression and metastasis of esophageal squamous cell carcinoma (ESCC) remain unclear. Here, we profiled the genome-wide landscapes of H3K9ac for paired adjacent normal (Nor), primary ESCC (EC) and metastatic lymph node (LNC) esophageal tissues from three ESCC patients. Compared to H3K27ac, we identified a distinct epigenetic reprogramming specific to H3K9ac in EC and LNC samples relative to Nor samples. This H3K9ac-related reprogramming contributed to the transcriptomic aberration of targeting genes, which were functionally associated with tumorigenesis and metastasis. Notably, genes with gained H3K9ac signals in both primary and metastatic lymph node samples (common-gained gene) were significantly enriched in oncogenes. Single-cell RNA-seq analysis further revealed that the corresponding top 15 common-gained genes preferred to be enriched in mesenchymal cells with high metastatic potential. Additionally, in vitro experiment demonstrated that the removal of H3K9ac from the common-gained gene MSI1 significantly downregulated its transcription, resulting in deficiencies in ESCC cell proliferation and migration. Together, our findings revealed the distinct characteristics of H3K9ac in esophageal squamous cell carcinogenesis and metastasis, and highlighted the potential therapeutic avenue for intervening ESCC through epigenetic modulation via H3K9ac.
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Affiliation(s)
- Zhenhui Chen
- School of Biomedical Engineering, School of Ophthalmology & Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, Zhejiang, China
- Oujiang Laboratory, Zhejiang Lab for Regenerative Medicine, Vision and Brain Health, Wenzhou, 325101, Zhejiang, China
| | - Chenghao Li
- School of Biomedical Engineering, School of Ophthalmology & Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, Zhejiang, China
| | - Yue Zhou
- School of Biomedical Engineering, School of Ophthalmology & Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, Zhejiang, China
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, 325011, Zhejiang, China
| | - Pengcheng Li
- School of Biomedical Engineering, School of Ophthalmology & Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, Zhejiang, China
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, 325011, Zhejiang, China
| | - Guoquan Cao
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Yunbo Qiao
- Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, 200125, China
| | - Yinghao Yao
- Oujiang Laboratory, Zhejiang Lab for Regenerative Medicine, Vision and Brain Health, Wenzhou, 325101, Zhejiang, China.
| | - Jianzhong Su
- School of Biomedical Engineering, School of Ophthalmology & Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, Zhejiang, China.
- Oujiang Laboratory, Zhejiang Lab for Regenerative Medicine, Vision and Brain Health, Wenzhou, 325101, Zhejiang, China.
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, 325011, Zhejiang, China.
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Liu HM, Zhou Y, Chen HX, Wu JW, Ji SK, Shen L, Wang SP, Liu HM, Liu Y, Dai XJ, Zheng YC. LSD1 in drug discovery: From biological function to clinical application. Med Res Rev 2024; 44:833-866. [PMID: 38014919 DOI: 10.1002/med.22000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 10/18/2023] [Accepted: 11/18/2023] [Indexed: 11/29/2023]
Abstract
Lysine-specific demethylase 1 (LSD1) is a flavin adenine dinucleotide (FAD) dependent monoamine oxidase (MAO) that erases the mono-, and dimethylation of histone 3 lysine 4 (H3K4), resulting in the suppression of target gene transcriptions. Besides, it can also demethylate some nonhistone substrates to regulate their biological functions. As reported, LSD1 is widely upregulated and plays a key role in several kinds of cancers, pharmacological or genetic ablation of LSD1 in cancer cells suppresses cell aggressiveness by several distinct mechanisms. Therefore, numerous LSD1 inhibitors, including covalent and noncovalent, have been developed and several of them have entered clinical trials. Herein, we systemically reviewed and discussed the biological function of LSD1 in tumors, lymphocytes as well as LSD1-targeting inhibitors in clinical trials, hoping to benefit the field of LSD1 and its inhibitors.
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Affiliation(s)
- Hui-Min Liu
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, Key Laboratory of Henan Province for Drug Quality and Evaluation, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Ying Zhou
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, Key Laboratory of Henan Province for Drug Quality and Evaluation, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - He-Xiang Chen
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, Key Laboratory of Henan Province for Drug Quality and Evaluation, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Jiang-Wan Wu
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, Key Laboratory of Henan Province for Drug Quality and Evaluation, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Shi-Kun Ji
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, Key Laboratory of Henan Province for Drug Quality and Evaluation, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Liang Shen
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, Key Laboratory of Henan Province for Drug Quality and Evaluation, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Shao-Peng Wang
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, Key Laboratory of Henan Province for Drug Quality and Evaluation, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Hong-Min Liu
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, Key Laboratory of Henan Province for Drug Quality and Evaluation, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Ying Liu
- Department of Pharmacy, Henan Engineering Research Center for Application & Translation of Precision Clinical Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, China
| | - Xing-Jie Dai
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, Key Laboratory of Henan Province for Drug Quality and Evaluation, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Yi-Chao Zheng
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education of China, Key Laboratory of Henan Province for Drug Quality and Evaluation, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, China
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Hou W, Gad SA, Ding X, Dhanarajan A, Qiu W. Focal adhesion kinase confers lenvatinib resistance in hepatocellular carcinoma via the regulation of lysine-deficient kinase 1. Mol Carcinog 2024; 63:173-189. [PMID: 37787401 PMCID: PMC10842616 DOI: 10.1002/mc.23644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 09/12/2023] [Accepted: 09/13/2023] [Indexed: 10/04/2023]
Abstract
Lenvatinib is a clinically effective multikinase inhibitor approved for first-line therapy of advanced hepatocellular carcinoma (HCC). Although resistance against lenvatinib often emerges and limits its antitumor activity, the underlying molecular mechanisms involved in endogenous and acquired resistance remain elusive. In this study, we identified focal adhesion kinase (FAK) as a critical contributor to lenvatinib resistance in HCC. The elevated expression and phosphorylation of FAK were observed in both acquired and endogenous lenvatinib-resistant (LR) HCC cells. Furthermore, inhibition of FAK reversed lenvatinib resistance in vitro and in vivo. Mechanistically, FAK promoted lenvatinib resistance through regulating lysine-deficient kinase 1 (WNK1). Phosphorylation of WNK1 was significantly increased in LR-HCC cells. Further, WNK1 inhibitor WNK463 resensitized either established or endogenous LR-HCC cells to lenvatinib treatment. In addition, overexpression of WNK1 desensitized parental HCC cells to lenvatinib treatment. Conclusively, our results establish a crucial role and novel mechanism of FAK in lenvatinib resistance and suggest that targeting the FAK/WNK1 axis is a promising therapeutic strategy in HCC patients showing lenvatinib resistance.
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Affiliation(s)
- Wei Hou
- Department of Surgery, Loyola University Chicago Stritch School of Medicine, Maywood, Illinois, USA
- Department of Cancer Biology, Loyola University Chicago Stritch School of Medicine, Maywood, Illinois, USA
| | - Shaimaa A Gad
- Department of Surgery, Loyola University Chicago Stritch School of Medicine, Maywood, Illinois, USA
- Department of Cancer Biology, Loyola University Chicago Stritch School of Medicine, Maywood, Illinois, USA
- Department of Pharmacology, Medical Research and Clinical Studies Institute, National Research Center, Egypt
| | - Xianzhong Ding
- Department of Pathology, Loyola University Chicago Stritch School of Medicine, Maywood, Illinois, USA
| | - Asha Dhanarajan
- Department of Medicine, Loyola University Chicago Stritch School of Medicine, Maywood, Illinois, USA
| | - Wei Qiu
- Department of Surgery, Loyola University Chicago Stritch School of Medicine, Maywood, Illinois, USA
- Department of Cancer Biology, Loyola University Chicago Stritch School of Medicine, Maywood, Illinois, USA
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Ozkanlar Y, Ulas N, Sozdutmaz I, Ozkanlar S. Clinical evaluation of antiviral combination treatment in cats with feline herpesvirus-1 infection. Pol J Vet Sci 2023; 26:705-713. [PMID: 38088482 DOI: 10.24425/pjvs.2023.148290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
Feline herpesvirus-1 (FHV-1) can cause lifelong problems such as rhinotracheitis and ocular disease due to latency and reactivation in affected cats. The particular effects of antiviral drugs have been separately investigated in previous studies for decades and little is known about the combination treatment in active FHV-1 infection. Therefore, we aimed to evaluate the effects of antiviral combination on clinical effectiveness in cats with naturally occurring FHV-1 infection. 28 cats suffering from clinical signs of sneezing, nasal congestion, conjunctivitis, and eye/nose discharge were involved in this study following FHV-1 DNA detection by PCR assay in oculo-oropharyngeal samples. The treatment protocol was as follows: oral famciclovir and L-lysine, ophthalmic acyclovir, and subcutaneous amoxicillin plus clavulanic acid. The symptoms improved each day and total recovery success rate was 80% reduction in clinical scores at the end of the treatment on day 10 (p<0.001). Additionally, PCR was found to be negative for FHV-1 DNA in 82.1% of the samples after the treatment. There were mild decreases in neutrophil and monocyte counts (p>0.05). The arginine to lysine ratio decreased in favour of lysine (p<0.01). As a result, the antiviral combination treatment with famciclovir, L-lysine and ophthalmic acyclovir, and antibacterial drug appears to be clinically effective for the treatment of naturally occurring active FHV-1 infection in cats. In addition, any adverse clinical effect has not been determined associated with the antiviral combination during the study.
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Affiliation(s)
- Y Ozkanlar
- Department of Internal Medicine, Faculty of Veterinary, Ondokuz Mayis University, 55139 Atakum/Samsun, Turkey
| | - N Ulas
- Department of Internal Medicine, Faculty of Veterinary, Ataturk University, 25240 Yakutiye/Erzurum, Turkey
| | - I Sozdutmaz
- Department of Virology, Faculty of Veterinary, Erciyes University, 38280 Talas/Kayseri, Turkey
| | - S Ozkanlar
- Department of Biochemistry, Faculty of Veterinary, Ataturk University, 25240 Yakutiye/Erzurum, Turkey
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Hou X, Cui B, Qiu A, Liu N, Zhuang S. Pharmacological inhibition of the mixed lineage leukemia 1-menin interaction aggravates acute kidney injury induced by folic acid and ischemia-reperfusion in mice. Am J Physiol Renal Physiol 2023; 325:F669-F680. [PMID: 37733875 DOI: 10.1152/ajprenal.00287.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 08/16/2023] [Accepted: 09/11/2023] [Indexed: 09/23/2023] Open
Abstract
Mixed lineage leukemia 1 (MLL1) is a methyltransferase that induces histone H3 lysine 4 trimethylation (H3K4me3) and partially exerts its untoward functional effects by interacting with multiple subunits including menin and WD repeat-containing protein 5 (WDR5). In this study, we investigated the role and mechanisms of MLL1 in murine models of acute kidney injury induced by folic acid (FA) and ischemia-reperfusion. Injury to the kidney elevated the expression of MLL1, menin, WDR5, and H3K4Me3, which was accompanied by increased serum creatinine and blood urea nitrogen, renal tubular injury, and apoptosis. Pharmacological inhibition of MLL1 activity with MI503 to disrupt the interaction between MLL1 with menin further increased serum creatinine and blood urea nitrogen levels, enhanced expression of neutrophil gelatinase-associated lipocalin and kidney injury molecule-1, and induced more apoptosis in the kidney following FA and ischemia-reperfusion injury. In contrast, MI503 treatment decreased the expression of vimentin and proliferating cell nuclear antigens. Similarly, treatment with MM102 to disrupt the interaction between MLL1 and WDR5 also worsened renal dysfunction, aggravated tubular cell injury, increased apoptosis, and inhibited cellular dedifferentiation and proliferation in mice following FA injection. Moreover, MI503 inhibited FA-induced phosphorylation of epidermal growth factor receptor, signal transducer and activator of transcription 3, and extracellular signal-regulated kinase-1/2 in injured kidneys. Collectively, these data suggest that MLL1 contributes to renal protection and functional recovery and promotes renal regeneration through a mechanism associated with activation of the epidermal growth factor receptor signaling pathway.NEW & NOTEWORTHY Mixed lineage leukemia 1 (MLL1) is a methyltransferase that induces histone H3 lysine 4 trimethylation and exerts its functional roles by interacting with multiple subunits. In this study, we demonstrated that inhibition of MLL1 activity by MI503 or MM102 aggravated renal injury and apoptosis and suppressed renal tubular cell dedifferentiation and proliferation, suggesting that MLL1 activation during acute kidney injury acts as an intrinsic protective mechanism to mediate renal tubular cell survival and regeneration.
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Affiliation(s)
- Xiying Hou
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Binbin Cui
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Andong Qiu
- School of Life Science and Technology, Advanced Institute of Translational Medicine, Tongji University, Shanghai, China
| | - Na Liu
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Shougang Zhuang
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
- Department of Medicine, Rhode Island Hospital and Alpert Medical School, Brown University, Providence, Rhode Island, United States
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Jeon J, Lee D, Kim B, Park BY, Oh CJ, Kim MJ, Jeon JH, Lee IK, Park O, Baek S, Lim CW, Ryu D, Fang S, Auwerx J, Kim KT, Jung HY. CycloZ Improves Hyperglycemia and Lipid Metabolism by Modulating Lysine Acetylation in KK-Ay Mice. Diabetes Metab J 2023; 47:653-667. [PMID: 37098411 PMCID: PMC10555534 DOI: 10.4093/dmj.2022.0244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 11/03/2022] [Indexed: 04/27/2023] Open
Abstract
BACKGRUOUND CycloZ, a combination of cyclo-His-Pro and zinc, has anti-diabetic activity. However, its exact mode of action remains to be elucidated. METHODS KK-Ay mice, a type 2 diabetes mellitus (T2DM) model, were administered CycloZ either as a preventive intervention, or as a therapy. Glycemic control was evaluated using the oral glucose tolerance test (OGTT), and glycosylated hemoglobin (HbA1c) levels. Liver and visceral adipose tissues (VATs) were used for histological evaluation, gene expression analysis, and protein expression analysis. RESULTS CycloZ administration improved glycemic control in KK-Ay mice in both prophylactic and therapeutic studies. Lysine acetylation of peroxisome proliferator-activated receptor gamma coactivator 1-alpha, liver kinase B1, and nuclear factor-κB p65 was decreased in the liver and VATs in CycloZ-treated mice. In addition, CycloZ treatment improved mitochondrial function, lipid oxidation, and inflammation in the liver and VATs of mice. CycloZ treatment also increased the level of β-nicotinamide adenine dinucleotide (NAD+), which affected the activity of deacetylases, such as sirtuin 1 (Sirt1). CONCLUSION Our findings suggest that the beneficial effects of CycloZ on diabetes and obesity occur through increased NAD+ synthesis, which modulates Sirt1 deacetylase activity in the liver and VATs. Given that the mode of action of an NAD+ booster or Sirt1 deacetylase activator is different from that of traditional T2DM drugs, CycloZ would be considered a novel therapeutic option for the treatment of T2DM.
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Affiliation(s)
- Jongsu Jeon
- R&D Center, NovMetaPharma Co., Ltd., Seoul, Korea
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang, Korea
| | - Dohyun Lee
- R&D Center, NovMetaPharma Co., Ltd., Seoul, Korea
| | - Bobae Kim
- R&D Center, NovMetaPharma Co., Ltd., Seoul, Korea
| | - Bo-Yoon Park
- Research Institute of Aging and Metabolism, Kyungpook National University, Daegu, Korea
| | - Chang Joo Oh
- Research Institute of Aging and Metabolism, Kyungpook National University, Daegu, Korea
| | - Min-Ji Kim
- Department of Internal Medicine, Kyungpook National University Hospital, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Jae-Han Jeon
- Department of Internal Medicine, Kyungpook National University Hospital, School of Medicine, Kyungpook National University, Daegu, Korea
| | - In-Kyu Lee
- Research Institute of Aging and Metabolism, Kyungpook National University, Daegu, Korea
- Department of Internal Medicine, Kyungpook National University Hospital, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Onyu Park
- R&D Center, NovMetaPharma Co., Ltd., Seoul, Korea
- School of Life Science, Handong Global University, Pohang, Korea
| | - Seoyeong Baek
- R&D Center, NovMetaPharma Co., Ltd., Seoul, Korea
- School of Life Science, Handong Global University, Pohang, Korea
| | - Chae Won Lim
- Department of Medicine, Graduate School, Daegu Catholic University, Gyeongsan, Korea
| | - Dongryeol Ryu
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon, Korea
- Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University, Suwon, Korea
| | - Sungsoon Fang
- Severance Biomedical Science Institute, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
- Graduate School of Medical Science, Brain Korea Project, Yonsei University College of Medicine, Seoul, Korea
| | - Johan Auwerx
- Laboratory of Integrative Systems Physiology, Institute of Bioengineering, Swiss Federal Institute of Technology in Lausanne, Lausanne, Switzerland
| | - Kyong-Tai Kim
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang, Korea
| | - Hoe-Yune Jung
- R&D Center, NovMetaPharma Co., Ltd., Seoul, Korea
- School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology (POSTECH), Pohang, Korea
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Alejo S, Palacios B, Venkata PP, He Y, Li W, Johnson J, Chen Y, Jayamohan S, Pratap U, Clarke K, Zou Y, Lv Y, Weldon K, Viswanadhapalli S, Lai Z, Ye Z, Chen Y, Gilbert A, Suzuki T, Tekmal R, Zhao W, Zheng S, Vadlamudi R, Brenner A, Sareddy GR. Lysine-specific histone demethylase 1A (KDM1A/LSD1) inhibition attenuates DNA double-strand break repair and augments the efficacy of temozolomide in glioblastoma. Neuro Oncol 2023; 25:1249-1261. [PMID: 36652263 PMCID: PMC10326496 DOI: 10.1093/neuonc/noad018] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Efficient DNA repair in response to standard chemo and radiation therapies often contributes to glioblastoma (GBM) therapy resistance. Understanding the mechanisms of therapy resistance and identifying the drugs that enhance the therapeutic efficacy of standard therapies may extend the survival of GBM patients. In this study, we investigated the role of KDM1A/LSD1 in DNA double-strand break (DSB) repair and a combination of KDM1A inhibitor and temozolomide (TMZ) in vitro and in vivo using patient-derived glioma stem cells (GSCs). METHODS Brain bioavailability of the KDM1A inhibitor (NCD38) was established using LS-MS/MS. The effect of a combination of KDM1A knockdown or inhibition with TMZ was studied using cell viability and self-renewal assays. Mechanistic studies were conducted using CUT&Tag-seq, RNA-seq, RT-qPCR, western blot, homologous recombination (HR) and non-homologous end joining (NHEJ) reporter, immunofluorescence, and comet assays. Orthotopic murine models were used to study efficacy in vivo. RESULTS TCGA analysis showed KDM1A is highly expressed in TMZ-treated GBM patients. Knockdown or knockout or inhibition of KDM1A enhanced TMZ efficacy in reducing the viability and self-renewal of GSCs. Pharmacokinetic studies established that NCD38 readily crosses the blood-brain barrier. CUT&Tag-seq studies showed that KDM1A is enriched at the promoters of DNA repair genes and RNA-seq studies confirmed that KDM1A inhibition reduced their expression. Knockdown or inhibition of KDM1A attenuated HR and NHEJ-mediated DNA repair capacity and enhanced TMZ-mediated DNA damage. A combination of KDM1A knockdown or inhibition and TMZ treatment significantly enhanced the survival of tumor-bearing mice. CONCLUSIONS Our results provide evidence that KDM1A inhibition sensitizes GBM to TMZ via attenuation of DNA DSB repair pathways.
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Affiliation(s)
- Salvador Alejo
- Department of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, Texas, 78229, USA
| | - Bridgitte E Palacios
- Department of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, Texas, 78229, USA
| | - Prabhakar Pitta Venkata
- Department of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, Texas, 78229, USA
| | - Yi He
- Department of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, Texas, 78229, USA
| | - Wenjing Li
- Department of Biochemistry and Structural Biology, University of Texas Health San Antonio, San Antonio, Texas, 78229, USA
| | - Jessica D Johnson
- Department of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, Texas, 78229, USA
| | - Yihong Chen
- Department of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, Texas, 78229, USA
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P. R. China
- Greehey Children’s Cancer Research Institute, University of Texas Health San Antonio, San Antonio, Texas, 78229, USA
- Department of Population Health Sciences, University of Texas Health San Antonio, San Antonio, Texas, 78229, USA
| | - Sridharan Jayamohan
- Department of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, Texas, 78229, USA
| | - Uday P Pratap
- Department of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, Texas, 78229, USA
| | - Kyra Clarke
- Department of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, Texas, 78229, USA
| | - Yi Zou
- Greehey Children’s Cancer Research Institute, University of Texas Health San Antonio, San Antonio, Texas, 78229, USA
| | - Yingli Lv
- Greehey Children’s Cancer Research Institute, University of Texas Health San Antonio, San Antonio, Texas, 78229, USA
| | - Korri Weldon
- Greehey Children’s Cancer Research Institute, University of Texas Health San Antonio, San Antonio, Texas, 78229, USA
| | - Suryavathi Viswanadhapalli
- Department of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, Texas, 78229, USA
- Mays Cancer Center, University of Texas Health San Antonio, San Antonio, Texas, 78229, USA
| | - Zhao Lai
- Greehey Children’s Cancer Research Institute, University of Texas Health San Antonio, San Antonio, Texas, 78229, USA
- Department of Molecular Medicine, University of Texas Health San Antonio, San Antonio, Texas, 78229, USA
| | - Zhenqing Ye
- Greehey Children’s Cancer Research Institute, University of Texas Health San Antonio, San Antonio, Texas, 78229, USA
- Department of Population Health Sciences, University of Texas Health San Antonio, San Antonio, Texas, 78229, USA
| | - Yidong Chen
- Department of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, Texas, 78229, USA
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P. R. China
- Greehey Children’s Cancer Research Institute, University of Texas Health San Antonio, San Antonio, Texas, 78229, USA
- Department of Population Health Sciences, University of Texas Health San Antonio, San Antonio, Texas, 78229, USA
| | - Andrea R Gilbert
- Department of Pathology and Laboratory Medicine, University of Texas Health San Antonio, San Antonio, Texas, 78229, USA
| | - Takayoshi Suzuki
- The Institute of Scientific and Industrial Research, Osaka University, Osaka, Japan
| | - Rajeshwar R Tekmal
- Department of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, Texas, 78229, USA
- Mays Cancer Center, University of Texas Health San Antonio, San Antonio, Texas, 78229, USA
| | - Weixing Zhao
- Department of Biochemistry and Structural Biology, University of Texas Health San Antonio, San Antonio, Texas, 78229, USA
- Mays Cancer Center, University of Texas Health San Antonio, San Antonio, Texas, 78229, USA
| | - Siyuan Zheng
- Greehey Children’s Cancer Research Institute, University of Texas Health San Antonio, San Antonio, Texas, 78229, USA
- Department of Population Health Sciences, University of Texas Health San Antonio, San Antonio, Texas, 78229, USA
- Mays Cancer Center, University of Texas Health San Antonio, San Antonio, Texas, 78229, USA
| | - Ratna K Vadlamudi
- Department of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, Texas, 78229, USA
- Mays Cancer Center, University of Texas Health San Antonio, San Antonio, Texas, 78229, USA
- Audie L. Murphy South Texas Veterans Health Care System, San Antonio, Texas, 78229, USA
| | - Andrew J Brenner
- Mays Cancer Center, University of Texas Health San Antonio, San Antonio, Texas, 78229, USA
- Department of Hematology & Oncology, University of Texas Health San Antonio, San Antonio, Texas, 78229, USA
| | - Gangadhara R Sareddy
- Department of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, Texas, 78229, USA
- Mays Cancer Center, University of Texas Health San Antonio, San Antonio, Texas, 78229, USA
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Najmi Z, Dabiri Oskoei A, Tofighi S, Gholami H, Garrosi L, Amini F. Efficacy of Ibuprofen Lysine on First-Trimester AbortionRelated Pain and Hemorrhage: A Randomized TripleBlinded Clinical Trial. Arch Iran Med 2023; 26:212-217. [PMID: 38301081 PMCID: PMC10685749 DOI: 10.34172/aim.2023.32] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 02/12/2023] [Indexed: 02/03/2024]
Abstract
BACKGROUND Some recent trials have reported high efficacy for nonsteroidal anti-inflammatory drugs (NSAIDs) in relieving medical abortion-related pain. The aim of this study was to determine the beneficial effect of oral NSAIDs (ibuprofen lysine) in reduction of pain and hemorrhage in first-trimester medical abortion. METHODS This randomized triple-blinded clinical trial was performed on 98 pregnant women who were candidate for medical abortion within the first-trimester period (gestational age<12 weeks). The participants were randomly assigned to receive ibuprofen lysine (684 mg orally every 4 hours) or placebo. All patients were initially treated with misoprostol (800 µg every 3 hours). Pain intensity and rate of hemorrhage were assessed every hour up to 15 hours after receiving the first dose of misoprostol by visual analogue scaling (VAS) and pictorial blood loss assessment chart (PBAC), respectively. RESULTS Assessing the mean pain score within 15 hours of receiving misoprostol showed significantly lower pain intensity within the first 10 hours of assessment in the group receiving NSAID in comparison with the control group (P<0.001). The bleeding rate was also significantly lower in the NSAID group at the fifth (P=0.013) and ninth (P=0.040) hour of receiving misoprostol compared to the control group. We found no difference in abortion-related complication rate between the NSAID and placebo groups (8.3% versus 8.0%, P=0.952). CONCLUSION The use of NSAIDs (ibuprofen lysine) is a good pharmacological analgesic option for relieving medical abortionrelated pain and hemorrhage.
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Affiliation(s)
- Zahra Najmi
- Department of Obstetrics and Gynecology, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Atousa Dabiri Oskoei
- Department of Obstetrics and Gynecology, Mousavi Hospital, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Shabnam Tofighi
- Department of Obstetrics and Gynecology, Mousavi Hospital, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Hamideh Gholami
- Department of Oncology, Mousavi Hospital, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Lida Garrosi
- Department of Obstetrics and Gynecology, Mousavi Hospital, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Faranak Amini
- Department of Obstetrics and Gynecology, Isfahan University of Medical Sciences, Isfahan, Iran
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9
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Iwata H, Nakamura R, Masuda N, Yamashita T, Yamamoto Y, Kobayashi K, Tsurutani J, Iwasa T, Yonemori K, Tamura K, Aruga T, Tokunaga E, Kaneko K, Lee MJ, Yuno A, Kawabata A, Seike T, Kaneda A, Nishimura Y, Trepel JB, Saji S. Efficacy and exploratory biomarker analysis of entinostat plus exemestane in advanced or recurrent breast cancer: phase II randomized controlled trial. Jpn J Clin Oncol 2023; 53:4-15. [PMID: 36398439 PMCID: PMC9825728 DOI: 10.1093/jjco/hyac166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 10/07/2022] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND We aimed to confirm the efficacy and safety of the oral histone deacetylase inhibitor entinostat in Japanese patients with hormone receptor-positive advanced/recurrent breast cancer and to explore potential biomarkers. METHODS This phase II, double-blind, randomized, placebo-controlled trial (ClinicalTrials.gov; NCT03291886) was conducted at 28 Japanese sites (September 2017-July 2020; interim analysis cutoff: April 2019). Patients with progression/relapse following non-steroidal aromatase inhibitors were randomized 1:1 to entinostat (5 mg/week) or placebo, plus exemestane (25 mg/day). Primary endpoint was progression-free survival; secondary endpoints included overall survival and safety. Exploratory biomarker outcomes included lysine acetylation, immune cell profiles, estrogen receptor 1 mutations and plasma chemokines. RESULTS Of 133 randomized patients, 131 (65 entinostat, 66 placebo) who received study drug were analyzed. Median (95% confidence interval) progression-free survival was 5.8 (3.2-7.8) months for entinostat and 3.3 (3.1-5.8) months for placebo (hazard ratio [95% confidence interval]: 0.75 [0.50 - 1.14]; P = 0.189). Median overall survival was not reached in either group. Entinostat tended to prolong progression-free survival in patients aged ≥65 years, not endocrine resistant, or with estrogen receptor 1 Y537S mutation. Candidate biomarkers of efficacy (progression-free survival) included lysine acetylation in CD3+ cells, plasma interferon gamma-induced protein 10, dendritic cell CD86 expression, and CD4+ cell expression of human leukocyte antigen-DR and inducible T-cell co-stimulator. Safety was similar to non-Japanese populations; however, seven entinostat-treated patients (10.8%) had reversible lung injury. CONCLUSIONS In Japanese patients, the safety of entinostat plus exemestane was acceptable and progression-free survival was prolonged, although not significantly. Exploratory analyses identified potential biomarkers, including lysine acetylation, of efficacy.
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Affiliation(s)
- Hiroji Iwata
- Department of Breast Oncology, Aichi Cancer Center Hospital, Aichi, Japan
| | - Rikiya Nakamura
- Division of Breast Surgery, Chiba Cancer Center, Chiba, Japan
| | - Norikazu Masuda
- Department of Surgery, Breast Oncology, National Hospital Organization, Osaka National Hospital, Osaka, Japan
| | - Toshinari Yamashita
- Department of Breast and Endocrine Surgery, Kanagawa Cancer Center, Yokohama, Japan
| | - Yutaka Yamamoto
- Department of Breast and Endocrine Surgery, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Kokoro Kobayashi
- Department of Breast Medical Oncology, Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Junji Tsurutani
- Advanced Cancer Translational Research Institute, Showa University, Tokyo, Japan
| | - Tsutomu Iwasa
- Advanced Cancer Translational Research Institute, Showa University, Tokyo, Japan
| | - Kan Yonemori
- Department of Medical Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Kenji Tamura
- Department of Medical Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Tomoyuki Aruga
- Department of Breast Surgery, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| | - Eriko Tokunaga
- Department of Breast Oncology, National Hospital Organization Kyushu Cancer Center, Fukuoka, Japan
| | - Koji Kaneko
- Department of Surgery, Niigata Cancer Center Hospital, Niigata, Japan
| | - Min-Jung Lee
- Developmental Therapeutics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Akira Yuno
- Developmental Therapeutics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | | | | | - Ayumi Kaneda
- R&D Division, Kyowa Kirin Co., Ltd, Tokyo, Japan
| | | | - Jane B Trepel
- Developmental Therapeutics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Shigehira Saji
- Department of Medical Oncology, Fukushima Medical University, Fukushima, Japan
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10
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Cottrill KA, Stephenson ST, Mohammad AF, Kim SO, McCarty NA, Kamaleswaran R, Fitzpatrick AM, Chandler JD. Exacerbation-prone pediatric asthma is associated with arginine, lysine, and methionine pathway alterations. J Allergy Clin Immunol 2023; 151:118-127.e10. [PMID: 36096204 PMCID: PMC9825634 DOI: 10.1016/j.jaci.2022.07.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 07/15/2022] [Accepted: 07/20/2022] [Indexed: 02/04/2023]
Abstract
BACKGROUND The asthma of some children remains poorly controlled, with recurrent exacerbations despite treatment with inhaled corticosteroids. Aside from prior exacerbations, there are currently no reliable predictors of exacerbation-prone asthma in these children and only a limited understanding of the potential underlying mechanisms. OBJECTIVE We sought to quantify small molecules in the plasma of children with exacerbation-prone asthma through mass spectrometry-based metabolomics. We hypothesized that the plasma metabolome of these children would differ from that of children with non-exacerbation-prone asthma. METHODS Plasma metabolites were extracted from 4 pediatric asthma cohorts (215 total subjects, with 41 having exacerbation-prone asthma) and detected with a mass spectrometer. High-confidence annotations were retained for univariate analysis and were confirmed by a sensitivity analysis in subjects receiving high-dose inhaled corticosteroids. Metabolites that varied by cohort were excluded. MetaboAnalyst software was used to identify pathways of interest. Concentrations were calculated by reference standardization. RESULTS We identified 32 unique, cohort-independent metabolites that differed in children with exacerbation-prone asthma compared to children with non-exacerbation-prone asthma. Comparison of metabolite concentrations to literature-reported values for healthy children revealed that most metabolites were decreased in both asthma groups, but more so in exacerbation-prone asthma. Pathway analysis identified arginine, lysine, and methionine pathways as most impacted. CONCLUSIONS Several plasma metabolites are perturbed in children with exacerbation-prone asthma and are largely related to arginine, lysine, and methionine pathways. While validation is needed, plasma metabolites may be potential biomarkers for exacerbation-prone asthma in children.
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Affiliation(s)
| | | | | | - Susan O Kim
- Department of Pediatrics, Emory University, Atlanta, Ga
| | | | - Rishikesan Kamaleswaran
- Department of Pediatrics, Emory University, Atlanta, Ga; Department of Biomedical Informatics, Emory University, Atlanta, Ga
| | - Anne M Fitzpatrick
- Department of Pediatrics, Emory University, Atlanta, Ga; Children's Healthcare of Atlanta, Atlanta, Ga
| | - Joshua D Chandler
- Department of Pediatrics, Emory University, Atlanta, Ga; Children's Healthcare of Atlanta, Atlanta, Ga.
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11
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Smith S, Rowbotham NJ. Inhaled anti-pseudomonal antibiotics for long-term therapy in cystic fibrosis. Cochrane Database Syst Rev 2022; 11:CD001021. [PMID: 36373968 PMCID: PMC9662285 DOI: 10.1002/14651858.cd001021.pub4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Inhaled antibiotics are commonly used to treat persistent airway infection with Pseudomonas aeruginosa that contributes to lung damage in people with cystic fibrosis. Current guidelines recommend inhaled tobramycin for individuals with cystic fibrosis and persistent Pseudomonas aeruginosa infection who are aged six years or older. The aim is to reduce bacterial load in the lungs so as to reduce inflammation and deterioration of lung function. This is an update of a previously published review. OBJECTIVES To evaluate the effects of long-term inhaled antibiotic therapy in people with cystic fibrosis on clinical outcomes (lung function, frequency of exacerbations and nutrition), quality of life and adverse events (including drug-sensitivity reactions and survival). SEARCH METHODS We searched the Cochrane Cystic Fibrosis Trials Register, compiled from electronic database searches and handsearching of journals and conference abstract books. We also searched ongoing trials registries. Date of last search: 28 June 2022. SELECTION CRITERIA We selected trials where people with cystic fibrosis received inhaled anti-pseudomonal antibiotic treatment for at least three months, treatment allocation was randomised or quasi-randomised, and there was a control group (either placebo, no placebo or another inhaled antibiotic). DATA COLLECTION AND ANALYSIS Two authors independently selected trials, judged the risk of bias, extracted data from these trials and judged the certainty of the evidence using the GRADE system. MAIN RESULTS The searches identified 410 citations to 125 trials; 18 trials (3042 participants aged between five and 45 years) met the inclusion criteria. Limited data were available for meta-analyses due to the variability of trial design and reporting of results. A total of 11 trials (1130 participants) compared an inhaled antibiotic to placebo or usual treatment for a duration between three and 33 months. Five trials (1255 participants) compared different antibiotics, two trials (585 participants) compared different regimens of tobramycin and one trial (90 participants) compared intermittent tobramycin with continuous tobramycin alternating with aztreonam. One trial (18 participants) compared an antibiotic to placebo and also to a different antibiotic and so fell into both groups. The most commonly studied antibiotic was tobramycin which was studied in 12 trials. Inhaled antibiotics compared to placebo We found that inhaled antibiotics may improve lung function measured in a variety of ways (4 trials, 814 participants). Compared to placebo, inhaled antibiotics may also reduce the frequency of exacerbations (risk ratio (RR) 0.66, 95% confidence interval (CI) 0.47 to 0.93; 3 trials, 946 participants; low-certainty evidence). Inhaled antibiotics may lead to fewer days off school or work (quality of life measure) (mean difference (MD) -5.30 days, 95% CI -8.59 to -2.01; 1 trial, 245 participants; low-certainty evidence). There were insufficient data for us to be able to report an effect on nutritional outcomes and there was no effect on survival. There was no effect on antibiotic resistance seen in the two trials that were included in meta-analyses. We are uncertain of the effect of the intervention on adverse events (very low-certainty evidence), but tinnitus and voice alteration were the only events occurring more often in the inhaled antibiotics group. The overall certainty of evidence was deemed to be low for most outcomes due to risk of bias within the trials and imprecision due to low event rates. Different antibiotics or regimens compared Of the eight trials comparing different inhaled antibiotics or different antibiotic regimens, there was only one trial for each unique comparison. We found no differences between groups for any outcomes except for the following. Aztreonam lysine for inhalation probably improved forced expiratory volume at one second (FEV1) % predicted compared to tobramycin (MD -3.40%, 95% CI -6.63 to -0.17; 1 trial, 273 participants; moderate-certainty evidence). However, the method of defining the endpoint was different to the remaining trials and the participants were exposed to tobramycin for a long period making interpretation of the results problematic. We found no differences in any measure of lung function in the remaining comparisons. Trials measured pulmonary exacerbations in different ways and showed no differences between groups except for aztreonam lysine probably leading to fewer people needing treatment with additional antibiotics than with tobramycin (RR 0.66, 95% CI 0.51 to 0.86; 1 trial, 273 participants; moderate-certainty evidence); and there were fewer hospitalisations due to respiratory exacerbations with levofloxacin compared to tobramycin (RR 0.62, 95% CI 0.40 to 0.98; 1 trial, 282 participants; high-certainty evidence). Important treatment-related adverse events were not very common across comparisons, but were reported less often in the tobramycin group compared to both aztreonam lysine and colistimethate. We found the certainty of evidence for these comparisons to be directly related to the risk of bias within the individual trials and varied from low to high. AUTHORS' CONCLUSIONS Long-term treatment with inhaled anti-pseudomonal antibiotics probably improves lung function and reduces exacerbation rates, but pooled estimates of the level of benefit were very limited. The best evidence available is for inhaled tobramycin. More evidence from trials measuring similar outcomes in the same way is needed to determine a better measure of benefit. Longer-term trials are needed to look at the effect of inhaled antibiotics on quality of life, survival and nutritional outcomes.
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Affiliation(s)
- Sherie Smith
- Division of Child Health, Obstetrics & Gynaecology (COG), School of Medicine, University of Nottingham, Nottingham, UK
| | - Nicola J Rowbotham
- Division of Child Health, Obstetrics & Gynaecology (COG), School of Medicine, University of Nottingham, Nottingham, UK
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12
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Takenokuchi M, Matsumoto K, Nitta Y, Takasugi R, Inoue Y, Iwai M, Kadoyama K, Yoshida K, Takano-Ohmuro H, Taniguchi T. In Vitro and In Vivo Antiglycation Effects of Connarus ruber Extract. Planta Med 2022; 88:1026-1035. [PMID: 34861700 DOI: 10.1055/a-1690-3528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Accumulation of advanced glycation end products (AGEs) of the Maillard reaction has been implicated in the pathogenesis of diabetes and its complications. Connarus ruber has been used as a folk remedy for several diseases, including diabetes; however, its underlying mechanism has not yet been investigated. This study investigated the effects of C. ruber extract against glycation on collagen-linked AGEs in vitro and streptozotocin-induced diabetic rats (STZ-DM rats) in vivo. The antiglycation activities of C. ruber extract and aminoguanidine (AG) were examined using a collagen glycation assay kit. Nonfluorescent AGE, Nε-carboxymethyl lysine (CML), Nω-carboxymethyl arginine, and Nε-carboxyethyl lysine levels were measured via electrospray ionization-liquid chromatography-tandem mass spectrometry. The effect of the extract on the cytotoxicity of methylglyoxal (MG), a precursor of AGEs, was examined in HL60 cells. STZ-DM rats were treated with the extract for 4 wk, and the effect was assessed using biochemical markers in the serum and CML-positive cells in renal tissues. C. ruber extract dose-dependently inhibited the glycation of collagen and formation of nonfluorescent AGEs, which was comparable to AG, and it significantly attenuated MG-induced cytotoxicity in HL60 cells. Furthermore, the glycated albumin levels in STZ-DM rats decreased, the increase in serum lipid levels was reversed, and immunohistochemistry demonstrated that CML deposition in the glomerulus of STZ-DM rats significantly decreased. Although further studies are needed, C. ruber could be a potential therapeutic for preventing and progressing many pathological conditions, including diabetes.
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Affiliation(s)
- Mariko Takenokuchi
- Faculty of Pharmacological Sciences, Daiichi University of Pharmacy, Fukuoka, Japan
| | - Kinuyo Matsumoto
- Faculty of Health and Welfare, Kobe Women's University, Kobe, Hyogo, Japan
| | - Yuko Nitta
- Faculty of Health and Welfare, Kobe Women's University, Kobe, Hyogo, Japan
| | | | - Yukari Inoue
- Department of Pharmaceutical Health Care, Faculty of Pharmaceutical Sciences, Himeji Dokkyo University, Himeji, Hyogo, Japan
| | - Michi Iwai
- Nippi Research Institute of Biomatrix, Toride, Ibaraki, Japan
| | - Keiichi Kadoyama
- Department of Pharmaceutical Health Care, Faculty of Pharmaceutical Sciences, Himeji Dokkyo University, Himeji, Hyogo, Japan
| | | | | | - Taizo Taniguchi
- Research Institute for Human Health Science, Konan University, Kobe, Hyogo, Japan
- Pharmacrea Kobe Co. Ltd., Kobe, Hyogo, Japan
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13
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Kamal Hossain M, Davidson M, Feehan J, Deraos G, Nurgali K, Matsoukas J, Apostolopoulos V. Development and characterization of a novel conjugated methamphetamine vaccine. Vaccine 2022; 40:5882-5891. [PMID: 36041942 DOI: 10.1016/j.vaccine.2022.08.043] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 06/09/2022] [Accepted: 08/18/2022] [Indexed: 02/07/2023]
Abstract
BACKGROUND Methamphetamine (METH) addiction is a major public health concern globally with limited management options. The development of a METH vaccine through hapten design has received significant attention as a promising platform for the potential treatment of METH addiction and overdose, however there is yet to be a successful candidate in human trials. RESEARCH DESIGN AND METHODS In this study, we developed a novel conjugated METH vaccine using oxidized mannan (a polymannose) as an immunogenic carrier. A METH hapten was synthesized by using amphetamine and conjugated to mannan with a (Lysine-Glycine-Lysine-Glycine-lysine-Glycine-Lysine-Glycine-Lysine-Glycine) (KG)5 peptide linker. RESULTS The reaction between amphetamine and (KG)5, oxidation of mannan, and conjugation of amphetamine-(KG)5 with oxidized mannan were confirmed by color tests, Fourier-transform infrared spectroscopy, gas and liquid chromatography mass spectrometry, thin-layer chromatography, and ultraviolet spectrophotometer. Additionally, the ability of the vaccine to generate antibodies was confirmed in C57BL/6 mice. CONCLUSIONS The successful development and characterization of the METH-mannan conjugate vaccine, provides a potential therapeutic intervention to curb METH substance use disorders. Each step of vaccine development was characterized to aid in future research on these vaccines, and the immunogenicity shown in the animal models supports future evaluation of the approach. Future studies of the conjugated METH vaccine should evaluate the efficacy in animal models of acute and chronic METH to pave the way for human studies.
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Affiliation(s)
- Md Kamal Hossain
- Institute for Health and Sport, Victoria University, Melbourne, VIC, Australia
| | - Majid Davidson
- Institute for Health and Sport, Victoria University, Melbourne, VIC, Australia
| | - Jack Feehan
- Institute for Health and Sport, Victoria University, Melbourne, VIC, Australia.
| | | | - Kulmira Nurgali
- Institute for Health and Sport, Victoria University, Melbourne, VIC, Australia
| | - John Matsoukas
- Institute for Health and Sport, Victoria University, Melbourne, VIC, Australia; Newdrug, Patras Science Park, 26500 Patras, Greece; Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Alberta, AB T2N 4N1, Canada
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14
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Abstract
Because of their involvement in various biological pathways, the sirtuin enzyme family members SIRT1, SIRT2, and SIRT3 play both tumor-promoting and tumor-suppressing roles, based on the context and experimental conditions. Thus, an interesting question is whether inhibiting one of them or inhibiting all of them would be better for treating cancers. Pharmacologically, this is difficult to address, due in part to potential off-target effects of different compounds. Compounds with almost identical properties but differing in SIRT1-3 selectivity will be useful for addressing this question. Here, we have developed a pan SIRT1-3 inhibitor (NH4-6) and a SIRT2-selective inhibitor (NH4-13) with very similar chemical structures, with the only difference being the substitution of an ester bond to an amide bond. Such a minimal difference allows us to accurately compare the anticancer effect of pan SIRT1-3 inhibition and SIRT2-selective inhibition in cellular and mouse models. NH4-6 showed stronger cytotoxicity than NH4-13 in cancer cell lines. In mice, both inhibitors showed similar anticancer efficacy. However, NH4-6 is toxic to mice, which hinders the use of higher dosages. These results highlight the advantage of SIRT2-selective inhibitors as potential anticancer therapeutics.
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Affiliation(s)
- Jun Young Hong
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - Irma Fernandez
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
- Department of Biomedical Sciences, Cornell University, Ithaca New York 14853, United States
| | - Ananya Anmangandla
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - Xuan Lu
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - Jessica Jingyi Bai
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - Hening Lin
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
- Howard Hughes Medical Institute; Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
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15
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Al-Toubah T, Sikaria D, Jesurajan J, Bottiglieri S, Smith J, Pellé E, Hutchinson T, Strosberg J, El-Haddad G. Comparison of Nausea and Vomiting Associated With Amino Acid Formulations Coinfused With Peptide Receptor Radionuclide Therapy: Commercial Parenteral Nutrition Formulas Versus Compounded Arginine/Lysine. Pancreas 2021; 50:513-515. [PMID: 33939662 DOI: 10.1097/mpa.0000000000001795] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
OBJECTIVES Positively charged amino acids (AA) such as arginine/lysine are coinfused with radiolabeled somatostatin analogs to reduce rates of nephrotoxicity. In the phase 3 NETTER-1 trial, commercial AA formulations were used in association with 177Lu-DOTA-0-Tyr3-Octreotate (DOTATATE). These formulations were also used in an early-access program (EAP) before regulatory approval of 177Lu-DOTATATE. Our program transitioned to compounded l-arginine 2.5%/l-lysine 2.5% in 0.9% NaCl after commercial approval of 177Lu-DOTATATE. We sought to compare rates of nausea/vomiting with arginine/lysine versus commercial parenteral AA formulations. METHODS Rates of nausea/vomiting of all 20 EAP patients who received commercial AAs (15% Clinisol) were compared with the first 29 patients to receive 177Lu-DOTATATE after commercial approval and coinfused with arginine/lysine. Other parameters reviewed included infusion rates, need for PRN nausea medications, and other toxicities. RESULTS Seventeen percent of patients who received compounded arginine/lysine experienced nausea, compared with 100% of patients in the EAP group (P < 0.0001). Infusion-related reactions occurred in 3% of the arginine/lysine cohort versus 35% in the EAP group. Infusion durations were substantially shorter in the arginine/lysine cohort (reduced by 61%). CONCLUSIONS Coinfusions of arginine/lysine with radiolabeled somatostatin analogs result in substantially lower rates of nausea/vomiting compared with commercial AA formulations designed for parenteral nutrition.
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Affiliation(s)
- Taymeyah Al-Toubah
- From the Department of GI Oncology, H Lee Moffitt Cancer Center and Research Institute
| | | | - Jose Jesurajan
- Department of Orthopedic Surgery, Loma Linda University, Loma Linda, CA
| | | | - Johnna Smith
- Diagnostic Imaging and Interventional Radiology, H Lee Moffitt Cancer Center and Research Institute, Tampa, FL
| | | | - Tai Hutchinson
- From the Department of GI Oncology, H Lee Moffitt Cancer Center and Research Institute
| | - Jonathan Strosberg
- From the Department of GI Oncology, H Lee Moffitt Cancer Center and Research Institute
| | - Ghassan El-Haddad
- Diagnostic Imaging and Interventional Radiology, H Lee Moffitt Cancer Center and Research Institute, Tampa, FL
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16
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Ranasinghe P, Jayawardena R, Chandrasena L. Effects of the Lysulin™ supplementation on pre-diabetes: A randomized double-blind, placebo-controlled clinical trial. Diabetes Metab Syndr 2020; 14:1479-1486. [PMID: 32795739 DOI: 10.1016/j.dsx.2020.07.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 06/19/2020] [Accepted: 07/15/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND AND AIMS Diabetes is a leading cause of morbidity and mortality worldwide. Recent studies have demonstrated that nutraceutical products have beneficial effects in diabetes. Present study aims to investigate whether a product (Lysulin™) containing amino acid lysine, micronutrient zinc and vitamin C will have beneficial effects in pre-diabetes. METHODS A randomized, double-blind, placebo-controlled trial was conducted for a period of 6 months. The two parallel groups (1:1) were Lysulin™ (Interventional group-IG) and placebo (control group-CG). Evaluations were done at baseline, 1, 3 and 6 months. Primary outcome was defined as change in glycaemic control measured by HbA1c from baseline. Other outcomes included change in; fasting plasma glucose (FPG), 2-h OGTT plasma glucose and lipid profile from baseline. Three multiple regression analyses were performed, where change in FPG, 2-h OGTT, and HbA1c post intervention from baseline respectively were the continuous dependent variable with other independent variables. RESULTS One hundred and ten participants were recruited, 50% (n = 55) were males and mean age (±SD) was 46.7 ± 9.9 years. A significantly higher percentage of participants in CG (25.4%, n = 14) developed diabetes in comparison to IG (7.3%, n = 4) (p = 0.018). FPG, 2-h OGTT and HbA1c significantly reduced in the IG only. Both total cholesterol and LDL cholesterol decreased significantly from baseline only in the IG. In all three regression models the best predictor of respective dependent variable was Lysulin™ treatment. CONCLUSIONS Lysulin™ improved glycaemic control, with reduced progression to diabetes, in those with pre-diabetes. Treatment also showed a beneficial reduction in total and LDL cholesterol levels. TRIAL REGISTRATION Sri Lanka Clinical Trials Registry, identifier: SLCTR/2018/022 (http://slctr.lk/trials/1290). Registered on 13th July 2018; Study protocol version 2.0 (23rd March 2018).
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Affiliation(s)
- Priyanga Ranasinghe
- Department of Pharmacology, Faculty of Medicine, University of Colombo, Colombo, Sri Lanka.
| | - Ranil Jayawardena
- Department of Physiology, Faculty of Medicine, University of Colombo, Colombo, Sri Lanka; Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia.
| | - Lal Chandrasena
- Nawaloka Hospital Research and Education Foundation (NHREF), Nawaloka Hospitals PLC, Colombo, Sri Lanka.
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17
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Abstract
The present study investigated the effectiveness of a Carisolv III + 0.5% sodium hypochlorite (NaOCl)-based root canal irrigant for smear layer removal.Forty maxillary incisors were randomly divided into 4 groups (n = 10 per group). The canals in group A (experimental) were prepared with 0.5% NaOCl, and Carisolv III and 0.5% NaOCl was used for the final washing; groups B and C (positive controls) used 2% and 5.25% NaOCl, respectively; and group D (negative control) used phosphate-buffered saline (PBS). Ethylenediaminetetraacetic acid (EDTA) was used for all of the groups. A 5-point scoring scale and scanning electron microscopy were used to evaluate the effectiveness of the irrigants. The canals were consistently cleaner in the coronal and middle thirds than in the apical thirds (P < .05).For cleaning the root canals, 5.25% NaOCl was more effective than 2% NaOCl, 0.5% NaOCl + Carisolv III, and phosphate-buffered saline , respectively (P < .05). The 2% NaOCl solution showed similar results to 0.5% NaOCl + Carisolv III (P > .05). The combination of 5.25% NaOCl and 17% EDTA remains the most effective irrigant for removal of the root canal smear layer.A combination of Carisolv III + 0.5% NaOCl (with 17% EDTA) showed a cleaning ability similar to that of 2% NaOCl (with 17% EDTA).
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Affiliation(s)
- Di Wu
- Department of Cariology and Endodontology, Qingdao Stomatological Hospital, Qingdao
| | - Yong-Zhen Ma
- Department of Stomatology, Tai'an City Central Hospital, Tai'an
| | - Jing Jia
- Department of Stomatology, Tai'an City Central Hospital, Tai'an
| | - Bing-Chang Xin
- Department of Cariology and Endodontology, Qingdao Stomatological Hospital, Qingdao
| | - Da-Shan Wang
- Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - De-Gang Sun
- Department of Cariology and Endodontology, Qingdao Stomatological Hospital, Qingdao
| | - Ling-Xiang Wang
- Department of Cariology and Endodontology, Qingdao Stomatological Hospital, Qingdao
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Hanoteau A, Newton JM, Krupar R, Huang C, Liu HC, Gaspero A, Gartrell RD, Saenger YM, Hart TD, Santegoets SJ, Laoui D, Spanos C, Parikh F, Jayaraman P, Zhang B, Van der Burg SH, Van Ginderachter JA, Melief CJM, Sikora AG. Tumor microenvironment modulation enhances immunologic benefit of chemoradiotherapy. J Immunother Cancer 2019; 7:10. [PMID: 30646957 PMCID: PMC6332704 DOI: 10.1186/s40425-018-0485-9] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Accepted: 12/13/2018] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Chemoradiotherapy (CRT) remains one of the most common cancer treatment modalities, and recent data suggest that CRT is maximally effective when there is generation of an anti-tumoral immune response. However, CRT has also been shown to promote immunosuppressive mechanisms which must be blocked or reversed to maximize its immune stimulating effects. METHODS Therefore, using a preclinical model of human papillomavirus (HPV)-associated head and neck squamous cell carcinoma (HNSCC), we developed a clinically relevant therapy combining CRT and two existing immunomodulatory drugs: cyclophosphamide (CTX) and the small molecule inducible nitric oxide synthase (iNOS) inhibitor L-n6-(1-iminoethyl)-lysine (L-NIL). In this model, we treated the syngeneic HPV-HNSCC mEER tumor-bearing mice with fractionated (10 fractions of 3 Gy) tumor-directed radiation and weekly cisplatin administration. We compared the immune responses induced by CRT and those induced by combinatory treatment (CRT + CTX/L-NIL) with flow cytometry, quantitative multiplex immunofluorescence and by profiling immune-related gene expression changes. RESULTS We show that combination treatment favorably remodels the tumor myeloid immune microenvironment including an increase in anti-tumor immune cell types (inflammatory monocytes and M1-like macrophages) and a decrease in immunosuppressive granulocytic myeloid-derived suppressor cells (MDSCs). Intratumoral T cell infiltration and tumor antigen specificity of T cells were also improved, including a 31.8-fold increase in the CD8+ T cell/ regulatory T cell ratio and a significant increase in tumor antigen-specific CD8+ T cells compared to CRT alone. CTX/LNIL immunomodulation was also shown to significantly improve CRT efficacy, leading to rejection of 21% established tumors in a CD8-dependent manner. CONCLUSIONS Overall, these data show that modulation of the tumor immune microenvironment with CTX/L-NIL enhances susceptibility of treatment-refractory tumors to CRT. The combination of tumor immune microenvironment modulation with CRT constitutes a translationally relevant approach to enhance CRT efficacy through enhanced immune activation.
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Affiliation(s)
- Aurelie Hanoteau
- Department of Otolaryngology-Head and Neck surgery, Baylor College of Medicine, Houston, TX USA
| | - Jared M. Newton
- Department of Otolaryngology-Head and Neck surgery, Baylor College of Medicine, Houston, TX USA
- Interdepartmental Program in Translational Biology and Molecular Medicine, Baylor College of Medicine, Houston, TX USA
| | - Rosemarie Krupar
- Pathology of the University Hospital Schleswig-Holstein, Campus Luebeck and Research Center Borstel, Leibniz Lung Center, Lubeck and Borstel, Germany
| | - Chen Huang
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX USA
- Lester & Sue Smith Breast Center, Baylor College of Medicine, Houston, TX USA
| | - Hsuan-Chen Liu
- Department of Otolaryngology-Head and Neck surgery, Baylor College of Medicine, Houston, TX USA
- Interdepartmental Program in Translational Biology and Molecular Medicine, Baylor College of Medicine, Houston, TX USA
| | - Angelina Gaspero
- Department of Otolaryngology-Head and Neck surgery, Baylor College of Medicine, Houston, TX USA
| | - Robyn D. Gartrell
- Department of Pediatrics, Division of Pediatric Hematology/Oncology, Columbia University Irving Medical Center/New York Presbyterian, New York, USA
| | - Yvonne M. Saenger
- Department of Medicine, Division of Hematology/Oncology, Columbia University Irving Medical Center/New York Presbyterian, New York, USA
| | - Thomas D. Hart
- Department of Medicine, Division of Hematology/Oncology, Columbia University Irving Medical Center/New York Presbyterian, New York, USA
| | - Saskia J. Santegoets
- Department of Medical Oncology, Leiden University Medical Center, Leiden, The Netherlands
| | - Damya Laoui
- Laboratory of Cellular and Molecular Immunology, Vrije Universiteit Brussel (VUB), Brussels, Belgium
- Laboratory of Myeloid Cell Immunology, VIB Center for Inflammation Research, Brussels, Belgium
| | - Chad Spanos
- Department of Surgery, University of South Dakota Sanford School of Medicine, Vermillion, SD USA
| | - Falguni Parikh
- Department of Otolaryngology-Head and Neck surgery, Baylor College of Medicine, Houston, TX USA
| | - Padmini Jayaraman
- Department of Otolaryngology-Head and Neck surgery, Baylor College of Medicine, Houston, TX USA
| | - Bing Zhang
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX USA
- Lester & Sue Smith Breast Center, Baylor College of Medicine, Houston, TX USA
| | - Sjoerd H. Van der Burg
- Department of Medical Oncology, Leiden University Medical Center, Leiden, The Netherlands
| | - Jo A. Van Ginderachter
- Laboratory of Cellular and Molecular Immunology, Vrije Universiteit Brussel (VUB), Brussels, Belgium
- Laboratory of Myeloid Cell Immunology, VIB Center for Inflammation Research, Brussels, Belgium
| | | | - Andrew G. Sikora
- Department of Otolaryngology-Head and Neck surgery, Baylor College of Medicine, Houston, TX USA
- Department of Cell and Gene Therapy, Baylor College of Medicine, Houston, TX USA
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19
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Miles L, Hall J, Jenner B, Addis R, Hutchings S. Predicting rapid analgesic onset of ibuprofen salts compared with ibuprofen acid: T lag, T low, T med, and a novel parameter, T CmaxRef. Curr Med Res Opin 2018; 34:1483-1490. [PMID: 29667449 DOI: 10.1080/03007995.2018.1466697] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
OBJECTIVE This study evaluated the early absorption characteristics of ibuprofen salt formulations and standard ibuprofen acid (the reference). METHODS In this open-label, crossover, single-center study (NCT02452450) in 32 healthy, fasted adults receiving single oral doses (400 mg ibuprofen) of ibuprofen lysine, ibuprofen liquid capsule, ibuprofen sodium, ibuprofen acid, and paracetamol, intensive blood sampling was conducted for up to 6 h. Time between dosing and the start of absorption (Tlag); a novel parameter, time at which the test formulations (ibuprofen salts) reached the observed maximum plasma concentration (Cmax) of the reference (standard ibuprofen acid) (TCmaxRef); and time to achieve therapeutic plasma concentration were measured. RESULTS Ibuprofen was absorbed more rapidly from the salt formulations than the reference; Tlag was 3.3-6.4 min for salt formulations compared with 10.9 min for the reference, and 100% of subjects had a Tlag ≤ 5 min for ibuprofen lysine, compared with 61% for ibuprofen liquid capsule, 21% for ibuprofen sodium, and 7% for the reference. TCmaxRef was 3.22-5.74-times shorter for salt formulations than for the reference (all p < .0001). The salt formulations reached therapeutic levels earlier than the reference (all p < .0001). All formulations were well tolerated. CONCLUSIONS This study shows that ibuprofen salts are absorbed faster than ibuprofen acid. Tlag and TCmaxRef demonstrated early start and increased speed of absorption of salts compared with the reference, and may predict more rapid onset of analgesia.
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20
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Hannington-Kiff JG. Rheumatoid Arthritis-Interventional Treatment with Regionally Applied Drugs and the Use of Sympathetic Modulation: Discussion Paper. J R Soc Med 2018; 83:373-6. [PMID: 2116523 PMCID: PMC1292688 DOI: 10.1177/014107689008300612] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Katsarava Z, Giffin N, Diener HC, Kaube H. Abnormal Habituation of ‘nociceptive’ Blink Reflex in Migraine-Evidence for Increased Excitability of Trigeminal Nociception. Cephalalgia 2016; 23:814-9. [PMID: 14510928 DOI: 10.1046/j.1468-2982.2003.00591.x] [Citation(s) in RCA: 91] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
We studied the habituation of the ‘nociceptive’ blink reflex (nBR) in 15 healthy subjects and 17 migraine patients interictally as well as during unilateral migraine headache within six hours of onset and after treatment. In healthy volunteers the mean regression coefficient (MRC) was – 3.9 following right sided and – 4.9 left sided stimulation. This equals an amplitude loss of 19.5% (5 X −3.9) and 24.5% (5 X −4.9), respectively, across five consecutive sweeps. An augmentation of nBR responses was found in migraine patients interictally: MRC = 3.3 following stimulation of the headache side (HA) and MRC = 4.0 of the non-headache side (non-HA). The differences were statistically significant (ANOVA: d.f. = 1, F = 25.8, P < 0.001). During the migraine attack MRCs were negative both before (−5.0, HA and – 4.0, non-HA) and after treatment (−2.6, HA and −1.9 non-HA) and significantly differed from those outside the migraine attack (ANOVA: d.f. = 2, F = 12.4, P < 0.001). The demonstrated lack of habituation of the nBR responses indicates an abnormal trigeminal nociceptive processing in migraine patients outside the migraine attack.
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Affiliation(s)
- Z Katsarava
- Department of Neurology, University of Essen, Germany
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22
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Roomi MW, Kalinovsky T, Rath M, Niedzwiecki A. A nutrient mixture inhibits glioblastoma xenograft U-87 MG growth in male nude mice. Exp Oncol 2016; 38:54-56. [PMID: 27031721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
BACKGROUND Brain tumors are highly aggressive tumors characterized by secretions of high levels of matrix metalloproteinase-2 and -9, leading to tumor growth, invasion and metastasis by digesting the basement membrane and extracellular matrix components. We previously demonstrated the effectiveness of a nutrient mixture (NM) containing ascorbic acid, lysine, proline, and green tea extract in vitro: on activity of urokinase plasminogen activator, matrix metalloproteinases and TIMPs in various human glioblastoma (LN-18, T-98G and A-172) cell lines and on glioblastoma A-172 cell proliferation and Matrigel invasion. AIM Our main objective in this study was to investigate the effect of the NM in vivo on human glioblastoma U-87 MG cell line. MATERIALS AND METHODS Athymic male nude mice inoculated with 3·10(6) U-87 MG cells subcutaneously and were fed a regular diet or a regular diet supplemented with 0.5% NM. Four weeks later, the mice were sacrificed, the tumors were weighed and measured. The samples were studied histologically. RESULTS NM inhibited tumor weight and tumor burden by 53% (p = 0.015) and 48% (p = 0.010), respectively. CONCLUSIONS These results suggest the therapeutic potential of NM as an adjuvant in the treatment of glioblastoma.
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Affiliation(s)
- M W Roomi
- Dr. Rath Research Institute, 1260 Memorex Drive, Santa Clara, CA 95050, USA
| | - T Kalinovsky
- Dr. Rath Research Institute, 1260 Memorex Drive, Santa Clara, CA 95050, USA
| | - M Rath
- Dr. Rath Research Institute, 1260 Memorex Drive, Santa Clara, CA 95050, USA
| | - A Niedzwiecki
- Dr. Rath Research Institute, 1260 Memorex Drive, Santa Clara, CA 95050, USA
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23
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Gelardi M, Taliente S, Fiorella ML, Quaranta N, Ciancio G, Russo C, Mola P, Ciofalo A, Zambetti G, Caruso Armone A, Cantone E, Ciprandi G. Ancillary therapy of intranasal T-LysYal® for patients with allergic, non-allergic, and mixed rhinitis. J BIOL REG HOMEOS AG 2016; 30:255-262. [PMID: 27049100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Allergic rhinitis (AR) is caused by an IgE-mediated inflammatory reaction. Non-allergic rhinitis (NAR) is characterized by a non-IgE-mediated pathogenesis. Frequently, patients have the two disorders associated: such as mixed rhinitis (MR). Hyaluronic acid (HA) is a fundamental component of the human connective tissue. HA may exert anti-inflammatory and immune-modulating activities. Recently, an intranasal HA formulation was proposed: a supramolecular system containing lysine hyaluronate, thymine and sodium chloride (T-LysYal®). This randomized study investigated whether intranasal T-LysYal® (rinoLysYal®, Farmigea, Italy) was able to reduce symptom severity, endoscopic features, and nasal cytology in 89 patients (48 males and 41 females, mean age 36.3±7.1 years) with AR, NAR, and MR. Patients were treated with intranasal T-LysYal® or isotonic saline solution as adjunctive therapy to nasal corticosteroid and oral antihistamine for 4 weeks. Patients were visited at baseline, after treatment and after 4-week follow-up. Intranasal T-LysYal® treatment significantly reduced the quote of patients with symptoms, endoscopic features, and inflammatory cells. In conclusion, the present study demonstrates that intranasal T-LysYal® is able, as ancillary therapy, to significantly improve patients with AR, NAR, and MR, and its effect is long lasting.
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Affiliation(s)
- M Gelardi
- Otolaryngology, Department of Basic Medical Science, Neuroscience and Sensory Organs, University of Bari Aldo Moro, Bari, Italy
| | - S Taliente
- Otolaryngology, Department of Basic Medical Science, Neuroscience and Sensory Organs, University of Bari Aldo Moro, Bari, Italy
| | - M L Fiorella
- Otolaryngology, Department of Basic Medical Science, Neuroscience and Sensory Organs, University of Bari Aldo Moro, Bari, Italy
| | - N Quaranta
- Otolaryngology, Department of Basic Medical Science, Neuroscience and Sensory Organs, University of Bari Aldo Moro, Bari, Italy
| | - G Ciancio
- Otolaryngology, Department of Basic Medical Science, Neuroscience and Sensory Organs, University of Bari Aldo Moro, Bari, Italy
| | - C Russo
- U.O.C. di Otorinolaringoiatria - Ospedale Di Venere, Carbonara Di Bari (BA), Italy
| | - P Mola
- Division of Otolaryngology, Pinerolo and Rivoli Hospitals, ASL TO3, Pinerolo, Italy
| | - A Ciofalo
- Rhinology and Immuno-Allergy Unit, Sense Organs Department, Otolaryngology Section, Umberto I General Hospital, La Sapienza University, Rome, Italy
| | - G Zambetti
- Rhinology and Immuno-Allergy Unit, Sense Organs Department, Otolaryngology Section, Umberto I General Hospital, La Sapienza University, Rome, Italy
| | | | - E Cantone
- Department of Neuroscience, Reproductive and Dentistry Science, ENT Unit; Federico II University, Naples, Italy
| | - G Ciprandi
- Department of Medicine, Istituto di Ricovero e Cura a Carattere Scientifico (I.R.C.C.S.) - Azienda Ospedaliera Universitaria San Martino, Genoa, Italy
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Desyateryk VI, Kotov OV, Mamchur DV. [ОPTIMIZATION OF PREOPERATIVE PREPARATION AND CONSERVATIVE TREATMENT OF OBTURATION JAUNDICE, OCCURRING ON BACKGROUND OF BILIARY CALCULOUS DISEASE]. Klin Khir 2016:32-34. [PMID: 30265477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Оbturation jaundice (ОJ) on background of biliary calculous disease (BCD) was diagnosed in 61 patients. There was studied the impact of L—lysine escinate and glutargin on the treatment results, which were included in complex of standard preoperative preparation, and what had transformed into conservative treatment and disappearing of ОJ without operative intervention. In accordance to the biochemical investigations results, which characterize a functional state of the liver, OJ had disappeared more rapidly while application of the treatment proposed. Positive results of treatment had witnessed actuality of the trend choosed and necessity of its further studying.
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25
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Merolla G, Dellabiancia F, Ingardia A, Paladini P, Porcellini G. Co-analgesic therapy for arthroscopic supraspinatus tendon repair pain using a dietary supplement containing Boswellia serrata and Curcuma longa: a prospective randomized placebo-controlled study. Musculoskelet Surg 2015; 99 Suppl 1:S43-S52. [PMID: 25957549 DOI: 10.1007/s12306-015-0364-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Accepted: 03/14/2015] [Indexed: 06/04/2023]
Abstract
BACKGROUND The cuff tendon that is most prone to full-thickness rotator cuff tears is the supraspinatus (SSP). Arthroscopic SSP repair ensures good to satisfactory mid- to long-term clinical outcomes. However, the intense postoperative pain reduces rehabilitation compliance and is cause of patient dissatisfaction. Many natural compounds act by inhibiting inflammatory pathways in a similar way to anti-inflammatory drugs MATERIALS AND METHODS This was a prospective randomized trial designed to assess the analgesic effect of a dietary supplement (DS) containing Boswellia serrata and Curcuma longa in a population of subjects with full-thickness SSP tendon tear treated by arthroscopy. Three weeks before surgery, patients were randomized to receive Tendisulfur(®) (group T) or a placebo (group P) for 2 months. The primary outcome measure was subjective VAS pain. Secondary outcomes measures were Constant-Murley score simple shoulder test, and patient global assessment (PGA) scores. Patients were assessed immediately at baseline and subsequently at 1, 2, 4, 6, 8, 12, and 24 weeks. RESULTS Stratification of pain scores and subscores demonstrated significantly lower overall pain scores in group T versus group P at 1 week (p = 0.0477), and lower but not significantly different scores on week 2 (p = 0.0988); at subsequent time points, differences were not significant (p > 0.05). PGA scores were good in all subjects. CONCLUSIONS In conclusion, this study provides objective data on the effect of a DS containing natural substances, added to standard analgesics, on postoperative RC pain. DS alleviated short and partially mid-term pain, while long-term pain was unchanged. This limitation can probably be addressed by a dosage increase over the first 4 weeks and by extending treatment by 1 or 2 months.
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Affiliation(s)
- G Merolla
- Unit of Shoulder and Elbow Surgery, "D. Cervesi" Hospital, Hospital, Cattolica - AUSL della Romagna Ambito Territoriale di Rimini, Via L. v. Beethoven 5, 47841, Cattolica, Italy.
- "Marco Simoncelli" Biomechanics Laboratory, "D. Cervesi" Hospital, Cattolica, Cattolica, Italy.
| | - F Dellabiancia
- "Marco Simoncelli" Biomechanics Laboratory, "D. Cervesi" Hospital, Cattolica, Cattolica, Italy
| | - A Ingardia
- Unit of Anesthesiology and Intensive Care, Riccione and Cattolica Hospitals - AUSL della Romagna Ambito Territoriale di Rimini, Cattolica, Italy
| | - P Paladini
- Unit of Shoulder and Elbow Surgery, "D. Cervesi" Hospital, Hospital, Cattolica - AUSL della Romagna Ambito Territoriale di Rimini, Via L. v. Beethoven 5, 47841, Cattolica, Italy
| | - G Porcellini
- Unit of Shoulder and Elbow Surgery, "D. Cervesi" Hospital, Hospital, Cattolica - AUSL della Romagna Ambito Territoriale di Rimini, Via L. v. Beethoven 5, 47841, Cattolica, Italy
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Coughlin CR, van Karnebeek CDM, Al-Hertani W, Shuen AY, Jaggumantri S, Jack RM, Gaughan S, Burns C, Mirsky DM, Gallagher RC, Van Hove JLK. Triple therapy with pyridoxine, arginine supplementation and dietary lysine restriction in pyridoxine-dependent epilepsy: Neurodevelopmental outcome. Mol Genet Metab 2015; 116:35-43. [PMID: 26026794 DOI: 10.1016/j.ymgme.2015.05.011] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Revised: 05/22/2015] [Accepted: 05/22/2015] [Indexed: 11/21/2022]
Abstract
Pyridoxine-dependent epilepsy (PDE) is an epileptic encephalopathy characterized by response to pharmacologic doses of pyridoxine. PDE is caused by deficiency of α-aminoadipic semialdehyde dehydrogenase resulting in impaired lysine degradation and subsequent accumulation of α-aminoadipic semialdehyde. Despite adequate seizure control with pyridoxine monotherapy, 75% of individuals with PDE have significant developmental delay and intellectual disability. We describe a new combined therapeutic approach to reduce putative toxic metabolites from impaired lysine metabolism. This approach utilizes pyridoxine, a lysine-restricted diet to limit the substrate that leads to neurotoxic metabolite accumulation and L-arginine to compete for brain lysine influx and liver mitochondrial import. We report the developmental and biochemical outcome of six subjects who were treated with this triple therapy. Triple therapy reduced CSF, plasma, and urine biomarkers associated with neurotoxicity in PDE. The addition of arginine supplementation to children already treated with dietary lysine restriction and pyridoxine further reduced toxic metabolites, and in some subjects appeared to improve neurodevelopmental outcome. Dietary lysine restriction was associated with improved seizure control in one subject, and the addition of arginine supplementation increased the objective motor outcome scale in two twin siblings, illustrating the contribution of each component of this treatment combination. Optimal results were noted in the individual treated with triple therapy early in the course of the disease. Residual disease symptoms could be related to early injury suggested by initial MR imaging prior to initiation of treatment or from severe epilepsy prior to diagnosis. This observational study reports the use of triple therapy, which combines three effective components in this rare condition, and suggests that early diagnosis and treatment with this new triple therapy may ameliorate the cognitive impairment in PDE.
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Affiliation(s)
- Curtis R Coughlin
- Section of Clinical Genetics and Metabolism, Department of Pediatrics, University of Colorado, Aurora, CO, United States
| | - Clara D M van Karnebeek
- Division of Biochemical Diseases &Treatable Intellectual Disability Endeavour in British Columbia (TIDE-BC), Department of Pediatrics, BC Children's Hospital, University of British Columbia, Vancouver, BC, Canada
| | - Walla Al-Hertani
- Department of Medical Genetics, Montreal Children's Hospital, McGill University of Health Centre, Montreal, QC, Canada
| | - Andrew Y Shuen
- Department of Medical Genetics, Montreal Children's Hospital, McGill University of Health Centre, Montreal, QC, Canada
| | - Sravan Jaggumantri
- Division of Biochemical Diseases &Treatable Intellectual Disability Endeavour in British Columbia (TIDE-BC), Department of Pediatrics, BC Children's Hospital, University of British Columbia, Vancouver, BC, Canada
| | - Rhona M Jack
- Department of Laboratory Medicine, Seattle Children's Hospital Laboratory, Seattle, WA, United States
| | - Sommer Gaughan
- Section of Clinical Genetics and Metabolism, Department of Pediatrics, University of Colorado, Aurora, CO, United States
| | - Casey Burns
- Section of Clinical Genetics and Metabolism, Department of Pediatrics, University of Colorado, Aurora, CO, United States
| | - David M Mirsky
- Department of Radiology, University of Colorado, Aurora, CO, United States
| | - Renata C Gallagher
- Section of Clinical Genetics and Metabolism, Department of Pediatrics, University of Colorado, Aurora, CO, United States
| | - Johan L K Van Hove
- Section of Clinical Genetics and Metabolism, Department of Pediatrics, University of Colorado, Aurora, CO, United States.
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Abstract
BACKGROUND Acute pancreatitis is an inflammatory disease caused by several factors such as viral infection, drugs, and diagnostic endoscopy. The aim of this study was to evaluate the potential protective or therapeutic effects of L-lysine on pancreatitis induced by L-arginine in mice. METHODS Four groups of mice (10 in each group) were assessed. Group I was the control. Animals in groups II-IV were injected intraperitoneally with L-arginine hydrochloride (400 mg/kg body weight [bw]) for 3 days. Group III animals were orally pre-treated with L-lysine (10 mg/kg bw), whereas group IV animals were orally post-treated with L-lysine (10 mg/kg bw). Serum samples were subjected to amylase, lipase, transaminase, and interleukin-6 (IL-6) assays. The pancreas was excised to measure the levels of malondialdehyde, nitric oxide, catalase, superoxide dismutase, reduced glutathione, and glutathione peroxidase. RESULTS Pre- or post-treatment with L-lysine led to significant decreases in the levels of malondialdehyde and nitric oxide, while significant enhancement was observed in the activities of antioxidant enzymes (superoxide dismutase, catalase, and glutathione peroxidase) and glutathione (p < 0.001). However, the treatment potential of L-lysine was better as a protective agent than a therapeutic agent. CONCLUSIONS L-lysine treatment attenuates pancreatic tissue injury induced by L-arginine by inhibiting the release of the inflammatory cytokine IL-6 and enhance antioxidant activity. These effects may involve upregulation of anti-inflammatory factors and subsequent downregulation of IL6.
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Affiliation(s)
- Abdulrahman L Al-Malki
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah, 21589, Saudi Arabia.
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28
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Lai G, Lara Capi C, Cocco F, Cagetti MG, Lingström P, Almhöjd U, Campus G. Comparison of Carisolv system vs traditional rotating instruments for caries removal in the primary dentition: A systematic review and meta-analysis. Acta Odontol Scand 2015; 73:569-80. [PMID: 25772193 DOI: 10.3109/00016357.2015.1023353] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE The purpose of this systematic review and meta-analysis was to evaluate the reliability of the Carisolv system with respect to drilling regarding the full removal of decayed hard tissues in primary dentition. A systematic review of the literature was conducted to identify controlled trails, randomized controlled trials and clinical trials that compared the Carisolv system to the traditional mechanical caries removal in the primary dentition. MATERIALS AND METHODS The main relevant databases were searched: MEDLINE via PUBMED, Web of Science and SCOPUS. Complete caries removal, length of working time and need of local anesthesia were the outcomes evaluated. RESULTS A total of 195 studies were identified and complete analysis of 28 studies was performed; finally, 10 papers were included. The trials included involved a total of 348 patients for 532 treated teeth. There was no significant difference in terms of clinical efficacy between the Carisolv and the rotary instrument (z = 0.68, p = 0.50), whereas the treatment with Carisolv was significantly longer in terms of time with respect to the rotary instruments (z = 10.49, p < 0.01). The chemo mechanical technique reduces the need for local anesthesia, with a difference between two types of treatment near to statistical significance (z = 1.91 p = 0.06). CONCLUSIONS This systematic review indicates that the clinical efficacy of chemo-mechanical removal with Carisolv seems as reliable as the rotary instruments. However, the results should be interpreted cautiously due to the heterogeneity among study designs and to the shortage of available data. Further large-scale, well-designed randomized controlled trials are needed.
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Affiliation(s)
- Gianfranco Lai
- Department of Surgery, Microsurgery and Medical Sciences, School of Dentistry, University of Sassari , Sassari , Italy
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Hamama HHH, Yiu CKY, Burrow MF. Effect of chemomechanical caries removal on bonding of self-etching adhesives to caries-affected dentin. J Adhes Dent 2015; 16:507-16. [PMID: 25516887 DOI: 10.3290/j.jad.a33250] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
PURPOSE To evaluate the effect of enzyme-based (Papacárie) and sodium-hypochlorite-based (Carisolv) chemomechanical caries removal methods on bonding of self-etching adhesives to caries-affected dentin, in comparison to the standard rotary-instrument caries removal method. MATERIALS AND METHODS Seventy-eight carious permanent molars exhibiting frank cavitation into dentin were used. Forty-eight teeth were randomly divided into three groups, according to the caries excavation methods: (i) Papacárie, (ii) Carisolv and (iii) a round steel bur. After caries removal, each group was subdivided into two groups for two-step (Clearfil SE Bond) or one-step (Clearfil S3 Bond) self-etching adhesive application and resin composite buildups. Bonded specimens were sectioned into beams for microtensile bond strength testing. Bond strength data were analyzed using three-way ANOVA and Tukey's test. For interfacial nanoleakage evaluation using a field-emission scanning electron microscope, caries was similarly removed from the remaining thirty carious molars, bonding was performed as for bond strength testing, and the teeth were sectioned. RESULTS RESULTS of three-way ANOVA revealed that bond strength was significantly affected by "adhesive" (p<0.001) and "dentin" (p<0.001), but not "caries excavation methods" (p>0.05). The bond strength of the two-step self-etching adhesive was significantly higher than that of the one-step self-etching adhesive (p<0.001). Conversely, the bond strength of self-etching adhesives to sound dentin was significantly higher than to residual caries-affected dentin (p<0.001). Greater silver penetration was observed in the bonded interfaces of residual caries-affected dentin and in interfaces bonded with the one-step self-etching adhesive vs those bonded with the two-step self-etching adhesive. CONCLUSION Chemomechanical caries removal did not affect the bonding of self-etching adhesives to caries-affected dentin as compared to caries excavation with rotary instruments.
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Abstract
Background:Susac syndrome is a rare condition involving the brain, retina, and cochlea. Electroencephalogram (EEG) findings from published case reports show mainly generalized slowing.Case report:A 30-year-old man presented with acute onset of superior vision loss, unsteady gait, and hearing loss. This was accompanied by short-term memory loss and behavioral and mood changes. MRI showed multiple white matter hyperintensities. The EEG showed frontal intermittent rhythmic delta activity. A diagnosis of Susac syndrome was made and treatment with methylprednisolone, ASA, and Nimodipine was instituted. At one-year follow-up, bilateral hearing loss, mild visual impairment, and mood changes were still apparent.Conclusion:Frontal intermittent rhythmic delta activity can be seen in Susac syndrome.
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Velásquez GCE, Santa Cruz LAG, Espinoza MAI. Ketoprofen is more effective than diclofenac after oral surgery when used as a preemptive analgesic: a pilot study. J Oral Facial Pain Headache 2014; 28:153-8. [PMID: 24822238 DOI: 10.11607/ofph.1200] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
AIM To evaluate the preemptive analgesia of ketoprofen in comparison with diclofenac after mandibular third molar surgery. METHODS This study was a double-blind, randomized clinical trial. Forty patients were randomized into two treatment groups (each with 20 patients) by using a series of random numbers: group A received ketoprofen 100 mg and group B received diclofenac 75 mg, all intramuscularly. Surgery was done 30 minutes after analgesic treatments. The durations of analgesia, pain intensity, analgesic consumption, and side effects were evaluated. The statistical analysis was done using the chi-square, Student t, Mann-Whitney U, and Log-Rank tests. RESULTS The duration of analgesia was longer in the ketoprofen group when compared with the diclofenac group. The number of patients taking the first rescue analgesic at 6 hours was lower in the ketoprofen group in comparison with the diclofenac group. Patients who received ketoprofen had lower pain intensity compared with patients who received diclofenac. CONCLUSION Intramuscular ketoprofen 100 mg is more effective than intramuscular diclofenac 75 mg after mandibular third molar extraction when used as a preemptive analgesic.
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Koval'chuk VV. [The possibilities of increasing of efficacy of treatment in patients with dorsalgia]. Zh Nevrol Psikhiatr Im S S Korsakova 2014; 114:26-30. [PMID: 25042487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
OBJECTIVE An influence of L-lysine aescinat on decrease of pain syndrome and normalization of movement's functions. MATERIAL AND METHODS. 220 patients with dorsalgia has been studied. To asses treatment efficacy the Huskisson's visual analog scale, multidimensional verbal and color test of pain and the modified Waddel's scale were used. RESULTS AND CONCLUSION The results of the study revealed that the use of L-lysine aescinat promotes considerable acceleration of process of regression of a pain syndrome and the efficacious rehabilitation of movements and plays a significant role in faster and expressed knocking over of a radicular syndrome.
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Affiliation(s)
- V V Koval'chuk
- SPb GBUZ "Gorodskaia bol'nitsa #38 im. N.A. Semashko", Sankt-Peterburg
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Alekseev VV, Alekseev AV, Gol'dzon GD. [Nonspecific low-back pain: from symptomatic treatment to pathogenesis-based treatment]. Zh Nevrol Psikhiatr Im S S Korsakova 2014; 114:51-55. [PMID: 24662346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
OBJECTIVE To study the efficacy and safety of artrosilene in the combination with piascledine in patients with low-back pain. METHODS Sixty patients, 42 women and 18 men (mean age 53,6±10,4 years) with chronic nonspecific low-back pain were treated with artrosilene (ketoprofen lysine salt) in the combination with the chondro protector piascledine (a mix of avocado and soybean oil extracts). RESULTS There the persistent decrease in the intensity of pain syndrome and severity of vertebral syndrome and improvement of quality of life. CONCLUSIONS The drugs can be recommended for treatment of nonspecific low-back pain.
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Ebert AG, Casarosa F, Colivicchi F, Limbruno U. [Primary angioplasty in a patient with acute inferior myocardial infarction: the unexpected trap]. G Ital Cardiol (Rome) 2013; 14:669-71. [PMID: 24121891 DOI: 10.1714/1335.14833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
We report a case of acute inferior myocardial infarction caused by occlusion of an anomalous right coronary artery, successfully treated with primary angioplasty. When an anomalous origin of a coronary artery is suspected, it is crucial to perform aortic angiography or left ventriculography in multiple projections.
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Yildiz E, Sirinkaraarslan E, Yegin Z, Cebe MA, Tosun G. Effect of caries removal techniques on the bond strength of adhesives to caries-affected primary dentin in vitro. Eur J Paediatr Dent 2013; 14:209-214. [PMID: 24295006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
AIM The aim of this in vitro study is to evaluate the effects of three different caries removal techniques on the microtensile bond strength of adhesive materials to caries-affected dentin. MATERIALS AND METHODS Thirty primary molar teeth were used. The teeth were randomly divided into three groups according to the caries removal technique employed: conventional steel bur (group 1); Er:YAG laser (group 2); chemomechanical method (group 3). Each group was divided into two subgroups according to bonding agents: one-step self-etch adhesive and etch-and-rinse adhesive. The teeth were restored with composite resin. Vertical sticks were obtained and subjected to tensile stress. Data were analyzed by two-way analysis of variance (ANOVA), Tukey's test and an independent samples t-test. RESULTS The values for the laser groups were significantly lower than those of the bur groups for both bonding agents (p<0.05). There were no significant differences between the bur and chemomechanical groups (p > 0.05). CONCLUSION Bur and chemomechanical techniques in primary teeth were found more successful. Similar results were found according to the adhesives used for each caries removal techniques.
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Affiliation(s)
- E Yildiz
- Department of Pediatric Dentistry, University of Gaziantep, Gaziantep, Turkey
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Trubetskaia EA, Boĭko AN, Khozova AA, Kamchatnov PR, Petrov SV, Otcheskaia OV, Gandzhula PA. [Efficacy of ketoprofen lysine salt (artrosilene) in the treatment of nonspecific vertebrogenic pain syndromes in outpatients]. Zh Nevrol Psikhiatr Im S S Korsakova 2013; 113:53-55. [PMID: 23528496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
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Merkulova DM, Onsin AA, Merkulov YA. [Piascledin in the treatment of chronic dorsalgia]. Zh Nevrol Psikhiatr Im S S Korsakova 2013; 113:18-22. [PMID: 24107875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Piascledine is a plant drug which positively influences the metabolism of cartilage and bone tissues. The authors studied the therapeutic effect of the drug in outpatients with chronic nonspecific dorsalgia. Piascledine was administered in dose 300 mg daily during two months. In the first month, it was used in the combination with artrosilene (320 mg daily). A comparison group included patients receiving monotherapy with NSAIDs (artrosilene). The study confirmed the high analgesic efficacy of piascledine in the treatment of patients with chronic nonspecific dorsalgia with controlled using of NSAIDs. The positive effect of piascledine was demonstrated after one month of treatment. The authors suggest that further clinical trials and placebo-control studies are needed to confirm these results.
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Affiliation(s)
- D M Merkulova
- Nevrologicheskiĭ tsentr im. B.M. Gekhta NUZ TsKB #2 im. N.A. Semashko OAO "RZhD"; FGBU "Nauchno-issledovatel'skiĭ institut obshcheĭ patologii i patofiziologii" RAMN, Moskva
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Arnberg F, Gahm C, Mathiesen T. L-N-iminoethyl-lysine after experimental brain trauma attenuates cellular proliferation and astrocyte differentiation. Acta Neurochir (Wien) 2012; 154:681-7. [PMID: 22297397 DOI: 10.1007/s00701-012-1282-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2008] [Accepted: 01/12/2012] [Indexed: 11/29/2022]
Abstract
BACKGROUND The effects, and thereby possible benefit, of inhibiting nitric oxide synthases (NOS) after brain injury are not fully understood. Nitric oxide (NO) has both neuroprotective and damaging features, and its effect on the cellular proliferation and differentiation that occurs in response to traumatic brain injury (TBI) is largely unknown. This study was undertaken to investigate the effects of the selective inducible NOS-inhibitor, L-N-iminoethyl-lysine (L-NIL), on proliferating cell populations in rat brain areas with self-renewing capacity. METHODS A brain contusion was produced using a weight-drop model in rats. Animals received treatment with L-NIL or saline, and were killed after 6 days. Brain sections were stained with a cell marker of proliferation, Ki67, to detect dividing cells in the hippocampus, perilesional zone and the subventricular zone (SVZ). RESULTS A significant decrease of proliferating cells was seen in the SVZ bilaterally in L-NIL-treated animals compared to controls. Hippocampal proliferation showed a tendency to decrease in L-NIL-treated animals that did not reach statistical significance. Perilesional proliferation was equal in the treatment group and controls. The percentage of proliferating GFAP expressing cells was, however, lower in L-NIL-treated animals. The proliferating cell populations were predominantly immunoreactive for GFAP, while a smaller population was immunoreactive for Nestin. The inhibition of inducible NOS with L-NIL attenuated the level of cellular proliferation and influenced the differentiation of astrocytes at 6 days after experimental brain contusion. CONCLUSIONS Our results confirmed that reactive glial cells dominated the proliferating cell population after TBI and suggested that NO-regulated mechanisms are relevant for post-traumatic cellular proliferation and differentiation, since NO inhibition decreased the number of proliferating cells in the SVZ and the proportion of proliferating cells expressing GFAP, a marker of glial proliferation.
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Gafurov BG. [Efficacy of the anti-edema drug L-lysine aescinat in stroke]. Zh Nevrol Psikhiatr Im S S Korsakova 2012; 112:31-34. [PMID: 23388603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Forty-nine patients with ischemic hemispheric stroke admitted within 48 hours of stroke onset were studied. Twenty-nine patients (the main group) received L-lysine aescinat as an anti-edema drug. The efficacy was evaluated clinically and by EEG and autonomic testing. The rapid recovery of wakefulness and reduction in neurological deficit as well as the improvement of brain electrical activity and autonomic functions were observed. L-lysine aescinat can be recommended to control the syndrome of intracranial hypertension in stroke.
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Huang WD, Wang JZ, Lu YQ, DI YM, Jiang JK, Zhang Q. Lysine acetylsalicylate ameliorates lung injury in rats acutely exposed to paraquat. Chin Med J (Engl) 2011; 124:2496-2501. [PMID: 21933594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023] Open
Abstract
BACKGROUND Paraquat (PQ), an effective and widely used herbicide, has been proven to be safe when appropriately applied to eliminate weeds. However, PQ poisoning is an extremely frustrating clinical condition with a high mortality and with a lack of effective treatments in humans. PQ mainly accumulates in the lung, and the main molecular mechanism of PQ toxicity is based on redox cycling and intracellular oxidative stress generation. The aim of this study was to evaluate whether lysine acetylsalicylate (LAS) could protect the lung from the damage of PQ poisoning and to study the mechanisms of protection. METHODS A model of PQ poisoning was established in 75 Sprague-Dawley rats by intragastric administration of 50 mg/kg PQ, followed by treatment with 200 mg/kg of LAS. The rats were randomly divided into sham, PQ, and PQ + LAS groups, with 25 in each group. We assessed and compared the malonaldehyde (MDA) content, superoxide dismutase activity (SOD), glutathion peroxidase (GSH-Px), and catalase (CAT) in serum and lung and the hydroxyproline (HYP) content, pathological changes, apoptosis and expression of Bcl-2/Bax protein in lung of rats on days 1, 3, 7, 14 and 21 after PQ poisoning and LAS treatment. RESULTS Compared to the PQ group rats, early treatment with LAS reduced the MDA and HYP contents, and increased the SOD, GSH-Px, and CAT activities in the serum and lung on days 1, 3, 7, 14, and 21 after PQ poisoning (all P < 0.05). After early LAS treatment, the apoptotic rate and Bax expression of lung decreased, the Bcl-2 expression increased, and the Bcl-2/Bax ratio increased, compared to the PQ group rats. Furthermore, the pathological results of lungs revealed that after LAS treatment, early manifestations of PQ poisoning, such as hemorrhage, edema and inflammatory-cell infiltration, were improved to some degree, and collagen fibers in the pulmonary interstitium were also obviously reduced. CONCLUSION In this rat model of PQ poisoning, LAS effectively ameliorated the lung injury induced by PQ, possibly through antioxidation, anti-fibrosis, anti-apoptosis, and anticoagulation.
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Affiliation(s)
- Wei-Dong Huang
- Department of Emergency Medicine, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310003, China
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Christou A, Kafkas N, Marinakos A, Katsanos S, Papanikitas K, Patsilinakos S. Rapid desensitisation of patients with aspirin allergy who undergo coronary angioplasty. Hellenic J Cardiol 2011; 52:307-310. [PMID: 21933761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023] Open
Abstract
INTRODUCTION Although aspirin is the cornerstone of medication in patients with coronary artery disease, a minority of these patients have aspirin sensitivity. The aim of this study was to evaluate the efficacy and safety of an aspirin desensitisation protocol in patients scheduled for coronary angioplasty and stenting. METHODS We used a challenge-desensitisation protocol in 11 patients (6 men, mean age 56 ± 9.6 years) who reported allergy to aspirin and were to undergo percutaneous coronary intervention with stent implantation. Eight had a history of cutaneous sensitivity, 1 had rhinitis, 1 reported urticaria and rhinitis, while another patient showed a respiratory response in the form of an asthma attack after taking aspirin in the past. Eight successive doses of aspirin were given (0.1, 0.3, 10, 30, 40, 81, 162, 325 mg) at intervals of 15-25 min over a total period of 2 h 15 min. RESULTS All patients with aspirin sensitivity completed the desensitisation therapy successfully, without adverse effects, and subsequently underwent angioplasty and stenting. During follow up, the patients continued to take aspirin over 6-19 months without any problems. CONCLUSIONS Rapid aspirin desensitisation is an effective and safe procedure for patients with aspirin allergy who are to undergo coronary angioplasty and stenting, allowing them to receive the optimum treatment.
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Affiliation(s)
- Apostolos Christou
- Cardiology Department, Konstantopoulio General Hospital, Nea Ionia, Athens, Greece.
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Roomi MW, Roomi NW, Bhanap B, Rath M, Niedzwiecki A. In vivo and in vitro antitumor effects of nutrient mixture in murine leukemia cell line P-388. Exp Oncol 2011; 33:71-77. [PMID: 21716202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
AIM Leukemia is characterized by uncontrolled marrow cell proliferation and metastatic foci. We investigated the antitumor potential of a nutrient mixture on malignant leukemia P-388 cells. METHODS The nutrient mixture containing lysine, proline, ascorbic acid, green tea extract and other nutrients is formulated to target key pathways in cancer progression. The cells were treated with the mixture, and tested at doses 0, 10, 50, 100, 500 and 1000 μg/ml in triplicates. The effects were evaluated by cell proliferation, Matrigel invasion, cell morphology and apoptosis. The in vivo effect was measured in male nude mice (n = 12) inoculated with P-388 cells. After randomly dividing in two groups, each group was fed regular and the nutrient mixture supplemented diet and the mice were sacrificed after four weeks. RESULTS The nutrient mixture decreased P-388 cell proliferation at 500 and 1000 μg/ml. Only 10% cells were viable at 1000 μg/ml. Matrigel invasion was significantly inhibited in a dose dependent manner with virtually total inhibition at 1000 μg/ml. Cell morphological features notably changed with dose increase to 1000 μg/ml. Analysis of apoptotic cells on live green caspase kit exhibited gradual increase with the increasing dose of the nutrient mixture, and at 1000 μg/ ml 92% of P-388 cells were in late apoptosis. Tumors in the group of mice supplemented with the nutrient mixture had 50% lower weight compared to the tumors in control group (p = 0.0105). Histopathologically, both the groups of tumors were similar, yet size of tumors in the group treated with the nutrient mixture was considerably smaller. CONCLUSION These results indicate that the nutrient mixture exhibited significant action against multiple targets in P-388 leukemia and may have potential in human leukemia.
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Affiliation(s)
- M W Roomi
- Dr. Rath's Research Institute, Cancer Division, Santa Clara, California 95050, USA
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Imbronito AV, Okuda O, Del Cioppo CV, Arana-Chavez VE. Scanning electron microscopy in vitro study on the effect of Carisolv application on periodontally diseased root surfaces. INT J PERIODONT REST 2011; 31:91-95. [PMID: 21365031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The purpose of this study was to evaluate the characteristics of diseased root surfaces treated by the association of scaling and the application of Carisolv. Twenty-four uniradicular periodontally involved teeth were used in this study. The teeth were divided randomly into three groups: eight teeth were scaled and root planed until there was a complete visible removal of calculus (group 1), Carisolv was applied on the root surfaces of eight teeth twice for 30 seconds before scaling with a sharp curette (group 2), and eight teeth received the same treatment as in group 2 but with a blunt curette (group 3). Specimens were examined using scanning electron microscopy. The superficial aspect of the roots from group 1 presented scratches that mirrored the curette cutting edge, and the smear layer completely covered the surface. Root surfaces from groups 2 and 3 also presented a smear layer that covered the surface completely, but it was somewhat smoother than group 1. The use of Carisolv as an adjunct to scaling and root planing presented no advantage for smear layer removal over scaling alone, suggesting that no benefit is obtained by the use of Carisolv during periodontal mechanical treatment.
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Affiliation(s)
- Ana Vitoria Imbronito
- Laboratory of Oral Biology, School of Dentist, University of São Paulo, São Paulo, SP, Brazil
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Maier B, Tersey SA, Mirmira RG. Hypusine: a new target for therapeutic intervention in diabetic inflammation. Discov Med 2010; 10:18-23. [PMID: 20670594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
Diabetes, a disorder of glucose homeostasis, has risen to near epidemic proportions world-wide and may be the single most important risk factor for cardiovascular, kidney, and eye disease. Dysfunction and destruction of islet beta cells, caused in part by the systemic or local release of pro-inflammatory cytokines, underlies all forms of diabetes. A major effort in diabetes research in recent years has been to identify new factors or pathways that can be therapeutically targeted to reduce cytokine action on the beta cell. Recent studies have suggested that an ancient and poorly understood protein, eIF5A, may be critical to cytokine release and signaling. Interestingly, eIF5A is the only protein to contain the unique amino acid hypusine, which is a polyamine-derived modification of amino acid lysine residue. This modification is catalyzed by the sequential actions of the inhibitable enzymes deoxyhypusine synthase and deoxyhypusine hydroxylase. Because the hypusine modification is absolutely required for eIF5A action in cytokine signaling, we propose that this modification could serve as a new drug target for islet beta cell protection in the setting of diabetic inflammation.
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Affiliation(s)
- Bernhard Maier
- Department of Pediatrics, Indiana University School of Medicine, 635 Barnhill Drive, Indianapolis, Indiana 46202, USA
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Tolstopiatov SM. [Ukrainian break-through in the European and world strategy of individual prophylaxis of ischemic stroke in patients with arterial hypertension]. Lik Sprava 2010:3-21. [PMID: 21488364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
To reduce of epidemic of an ischemic stroke often developed in patients with arterial hypertension, we have developed the program of individual diagnostics of a clinical risk factor and a method to optimize the treatment directed on prophylactic of cardio-vascular complications. The main predictor of blood clot formation, hypercoagulation, had been detected by means of our laboratory technology "Coaguloscop-TC" (Ukraine patent) which allows registration 36 biomarkers of coagulation cascade and the fibrinolysys system. It can calculate coagulation module (MC) and fibrinolysis module (MF). These biomarkers corresponded to new (2009) requirements of the American Heart Association. After analysis of results of 818 patients we have defined an interval line of MC and MF disorders located within degree (from I to X) of their dysfunction. Patients with hypertension (400) of II-III stage and concomitant ischemic heart disease (44.2% of cases) without antiplatelet therapies, hypercoagulation was found in 61% of patients. Very high risk factor (MC IX-X degree) took place in all patients with acute stroke. The high risk factor (MC VI-VIII degree) testified presence of urgent situation, for its correction we administered an antiplatelet agent (acelisin) intramuscularly once a day for 4-6 days in an individual dosis which was calculated based on MC level and body weight. After the treatment MC usually decreased to 2 degrees (low risk factor). The dislipidemia negatively effects efficiency of the treatment as its biomarkers have direct correlation (P < 0.001) with density of blood clot which increase inhibits the fibrinolysis system to dissolve blood clot. The use of effective complex treatment of patients with arterial hypertension ( antihypertensive, antiplatelet and hypolipidemic (statin) medications) is supposed to decrease the development of ischemic stroke by 80% that four times higher than in the 2006-2020 program assigned by Ministry of Health of Ukraine.
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Jung S, Kasper B. Palifosfamide, a bifunctional alkylator for the treatment of sarcomas. IDrugs 2010; 13:38-48. [PMID: 20024846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Ifosfamide is a chemotherapeutic prodrug used in the treatment of several tumor entities, including bone and soft-tissue sarcoma. However, the application of high-dose ifosfamide is not feasible because of severe side effects caused by metabolites. The active metabolite isophosphoramide mustard is not suitable for administration because of chemical instability. ZIOPHARM Oncology Inc, under license from Dekk-Tec Inc, is developing palifosfamide, a formulation of isophosphoramide mustard with tris(hydroxymethyl)aminomethane salt-stabilization (palifosfamide-tris) and previously with lysine-stabilization (palifosfamide-lys). Preclinical studies and phase I and I/II clinical trials demonstrated that palifosfamide-tris had an antitumor efficiency comparable or superior to that of ifosfamide. Patients treated with palifosfamide-tris did not display any of the neurotoxic or nephrotoxic side effects associated with ifosfamide. At the time of publication, data from phase II trials were being evaluated and phase III trials were being planned. palifosfamide-tris is expected to be a safer and less toxic alternative to ifosfamide; however, considering other new approaches under investigation for tumors such as sarcoma, such as molecular-based treatment strategies, it is unclear what position palifosfamide-tris might occupy on the market.
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Affiliation(s)
- Susanne Jung
- Department of Internal Medicine V, University of Heidelberg, Im Neuenheimer Feld 410, D-69120 Heidelberg, Germany
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Topaloglu-Ak A, Eden E, Frencken JE, Oncag O. Two years survival rate of class II composite resin restorations prepared by ART with and without a chemomechanical caries removal gel in primary molars. Clin Oral Investig 2009; 13:325-32. [PMID: 19101739 PMCID: PMC2733196 DOI: 10.1007/s00784-008-0241-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2008] [Accepted: 12/05/2008] [Indexed: 11/30/2022]
Abstract
The aim was to test the null hypotheses that there is no difference: (1) in carious lesion development at the restoration margin between class II composite resin restorations in primary molars produced through the atraumatic restorative treatment (ART) with and without a chemomechanical caries removal gel and (2) in the survival rate of class II composite resin restorations between two treatment groups after 2 years. Three hundred twenty-seven children with 568 class II cavitated lesions were included in a parallel mouth study design. Four operators placed resin composite (Filtek Z 250) restorations bonded with a self-etch adhesive (Adper prompt L pop). Two independent examiners evaluated the restorations after 0.5, 1, and 2 years using the modified Ryge criteria. The Kaplan-Meier survival method was applied to estimate survival percentages. A high proportion of restorations were lost during the study period. Therefore, the first hypothesis could not be tested. No statistically significant difference was observed between the cumulative survival percentages of restorations produced by the two treatment approaches over the 2-year period (ART, 54.1 +/- 3.4%; ART with Carisolv, 46.0 +/- 3.4%). This hypothesis was accepted. ART with chemomechanical gel might not provide an added benefit increasing the survival percentages of ART class II composite resin restorations in primary teeth.
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Affiliation(s)
- Asli Topaloglu-Ak
- Department of Pediatric Dentistry, Ege University, School of Dentistry, Izmir, Turkey
| | - Ece Eden
- Department of Pediatric Dentistry, Ege University, School of Dentistry, Izmir, Turkey
| | - Jo E. Frencken
- Nijmegen International Centre for Oral Health, Radboud University Nijmegen Medical Centre, College of Dental Sciences, P.O. Box 9101, 6500 HB Nijmegen, The Netherlands
| | - Ozant Oncag
- Department of Pediatric Dentistry, Ege University, School of Dentistry, Izmir, Turkey
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Noronha VRADS, Gurgel GDS, Alves LCF, Noman-Ferreira LC, Mendonça LL, Aguiar EGD, Abdo EN. Analgesic efficacy of lysine clonixinate, paracetamol and dipyrone in lower third molar extraction: a randomized controlled trial. Med Oral Patol Oral Cir Bucal 2009; 14:e411-e415. [PMID: 19415056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2008] [Accepted: 03/18/2009] [Indexed: 05/27/2023] Open
Abstract
OBJECTIVE The purpose of this study is to compare the analgesic effect of lysine clonixinate, paracetamol and dipyrone after lower third molar extraction. MATERIAL AND METHODS The sample consisted of 90 individuals with clinical indication for inferior third molar extraction. The mean age of the sample was 22.3 years (DP +/-2.5). The individuals received the medication in unidentified bottles along with the intake instructions. The postoperative pain parameters were measured according to the Visual Analogical Scale (VAS) and the data was evaluated using the Kruskal-Wallis Test and Friedman Test, with the latter used to test different time intervals for each one of the drugs. RESULTS The final sample consisted of 64 individuals, including 23 males (45.9%) and 41 females (64.1%) The mean age of the entire sample was 22.3 years (+/-2.5). The average length of the procedures was 33.9 minutes (+/-9.8). The distribution of mean values for this variable showed little variance for the different drugs (p=0.07). CONCLUSION Lysine Clonixinate did not show any substantial impact on the postoperative pain control when compared to other drugs.
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Nagareddy PR, McNeill JH, MacLeod KM. Chronic inhibition of inducible nitric oxide synthase ameliorates cardiovascular abnormalities in streptozotocin diabetic rats. Eur J Pharmacol 2009; 611:53-9. [PMID: 19344709 DOI: 10.1016/j.ejphar.2009.03.061] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2008] [Revised: 03/11/2009] [Accepted: 03/23/2009] [Indexed: 02/05/2023]
Abstract
Previous studies from our lab have demonstrated cardiovascular abnormalities such as depressed mean arterial blood pressure and heart rate, endothelial dysfunction and attenuated pressor responses to vasoactive agents in streptozotocin diabetic rats. We investigated whether these abnormalities are due to diabetes-associated chronic activation of inducible nitric oxide synthase (iNOS). Control and streptozotocin (60 mg/kg, iv) diabetic rats were treated with either vehicle or N6-(1-Iminoethyl)-L-lysine dihydrochloride (L-NIL, 3 mg/kg/day, p.o), a specific inhibitor of iNOS for 8 weeks. At the end of treatment, the mean arterial blood pressure and heart rate were measured in freely moving conscious rats. Further, pressor responses to bolus doses of methoxamine were determined. Endothelial nitric oxide synthase (eNOS) and iNOS expression as well as nitrotyrosine (NT) levels were assessed in the heart and superior mesenteric arteries by western blot and immunohistochemistry. Untreated diabetic rats showed depressed mean arterial blood pressure and heart rate and exhibited vascular hyporeactivity that were significantly improved by treatment with L-NIL. Further, decreased eNOS expression and increased iNOS expression and activity were associated with increased NT levels in the heart and superior mesenteric arteries of untreated diabetic rats. L-NIL treatment of diabetic rats normalized the expression of eNOS and NT levels without any effect on iNOS expression in the heart and superior mesenteric arteries. The results of our study suggest that induction of iNOS in cardiovascular tissues contributes significantly to the depressed mean arterial blood pressure, heart rate and pressor responses to vasoactive agents. Chronic inhibition of iNOS in diabetes may prove beneficial in the treatment of cardiovascular abnormalities.
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