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Zakaria IA, Mohammed Zain NA, Teik CK, Abu MA, Zainuddin AA, Abdul Aziz NH, Safian N, Mohd Mokhtar N, Raja Ali RA, Beng Kwang N, Mohamed Ismail NA, Hamizan MR, Ab Razak WS, Nur Azurah AG. The role of probiotics in improving menstrual health in women with primary dysmenorrhoea: A randomized, double-blind, placebo-controlled trial (the PERIOD study). WOMEN'S HEALTH (LONDON, ENGLAND) 2024; 20:17455057241234524. [PMID: 38444064 PMCID: PMC10916465 DOI: 10.1177/17455057241234524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 01/19/2024] [Accepted: 02/06/2024] [Indexed: 03/07/2024]
Abstract
BACKGROUND Primary dysmenorrhea is associated with poorer quality of life; however, the causal mechanism remains unclear. A vast body of literature supports the use of oral probiotics for relief from the symptoms of endometriosis; however, to our knowledge, no study has prescribed probiotics for primary dysmenorrhea. OBJECTIVE The aim of this study is to investigate the effects of 3-month supplementation with oral probiotics on quality of life and inflammatory markers in women with primary dysmenorrhea. DESIGN Randomized placebo-controlled trial. METHODS A total of 72 patients (36 patients in each arm) were randomized to receive either oral sachets containing 5 billion colony-forming units each of Lactobacillus acidophilus BCMC (BCrobes Microbial Cells) 12130, Lactobacillus casei subsp BCMC 12313, Lactobacillus lactis BCMC 12451, Bifidobacterium bifidum BCMC 02290, Bifidobacterium longum BCMC 02120, and Bifidobacterium infantis BCMC 02129 each or placebo twice daily for 3 months. Main outcome measures were visual analog scale, verbal rating scale, physical and mental health scores using Short-Form 12-Item version 2 questionnaire, frequency of nonsteroidal anti-inflammatory drug use, and changes in inflammatory markers (interleukin-6, interleukin-8, and tumor necrosis factor alpha) before and after treatment. RESULTS There was no significant difference in the quality of life scores between the probiotic and placebo groups. Both groups showed significant improvement in pain (visual analog scale) and severity (verbal rating scale) scores but the probiotic group had much lower nonsteroidal anti-inflammatory drug use (odds ratio: 0.69, 95% confidence interval: 0.26-1.83) and better mental health scores (mean change: 6.5, p = 0.03 versus 6.1, p = 0.08) than the placebo group. There was a significant confounding effect of nonsteroidal anti-inflammatory drug use on quality of life scores. No significant difference was found in inflammatory cytokines. CONCLUSION Tested oral probiotics improved mental health and potentially reduced the use of nonsteroidal anti-inflammatory drugs; however, there was no significant change in inflammatory markers. Further research with a larger sample size is needed to confirm the findings. REGISTRATION This study is registered under ClinicalTrials.gov (NCT04119011).
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Affiliation(s)
- Izyan Atiqah Zakaria
- Department of Obstetrics and Gynaecology, Faculty of Medicine, National University of Malaysia, Kuala Lumpur, Malaysia
| | - Nur Aini Mohammed Zain
- Department of Obstetrics and Gynaecology, Faculty of Medicine, National University of Malaysia, Kuala Lumpur, Malaysia
| | - Chew Kah Teik
- Department of Obstetrics and Gynaecology, Faculty of Medicine, National University of Malaysia, Kuala Lumpur, Malaysia
| | - Muhammad Azrai Abu
- Department of Obstetrics and Gynaecology, Faculty of Medicine, National University of Malaysia, Kuala Lumpur, Malaysia
| | - Ani Amelia Zainuddin
- Department of Obstetrics and Gynaecology, Faculty of Medicine, National University of Malaysia, Kuala Lumpur, Malaysia
| | - Nor Haslinda Abdul Aziz
- Department of Obstetrics and Gynaecology, Faculty of Medicine, National University of Malaysia, Kuala Lumpur, Malaysia
| | - Nazarudin Safian
- Department of Community Health, Faculty of Medicine, National University of Malaysia, Kuala Lumpur, Malaysia
| | - Norfilza Mohd Mokhtar
- Department of Physiology, Faculty of Medicine, National University of Malaysia, Kuala Lumpur, Malaysia
| | - Raja Affendi Raja Ali
- Department of Medicine, Faculty of Medicine, National University of Malaysia, Kuala Lumpur, Malaysia
| | - Ng Beng Kwang
- Department of Obstetrics and Gynaecology, Faculty of Medicine, National University of Malaysia, Kuala Lumpur, Malaysia
| | - Nor Azlin Mohamed Ismail
- Department of Obstetrics and Gynaecology, Faculty of Medicine, National University of Malaysia, Kuala Lumpur, Malaysia
| | - Muhammad Rafiuddin Hamizan
- Department of Obstetrics and Gynaecology, Faculty of Medicine, National University of Malaysia, Kuala Lumpur, Malaysia
| | - Wira Sorfan Ab Razak
- Department of Obstetrics and Gynaecology, Faculty of Medicine, National University of Malaysia, Kuala Lumpur, Malaysia
| | - Abdul Ghani Nur Azurah
- Department of Obstetrics and Gynaecology, Faculty of Medicine, National University of Malaysia, Kuala Lumpur, Malaysia
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Involvement of a neutrophil-mast cell axis in the effects of Piper malacophyllum (C. PESL) C. DC extract and its isolated compounds in a mouse model of dysmenorrhoea. Inflammopharmacology 2022; 30:2489-2504. [PMID: 35867292 DOI: 10.1007/s10787-022-01032-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 04/04/2022] [Indexed: 11/05/2022]
Abstract
The effects of Piper malacophyllum (C. Pesl) C. DC extracts and its isolated compounds were analysed in a mouse model of primary dysmenorrhoea (PD). Female Swiss mice (6-8 weeks old) on proestrus were intraperitoneally treated with estradiol benzoate for 3 days, to induce PD. Twenty-four hours later, animals were treated 24 h later with vehicle, plant extract, gibbilimbol B, 4,6-dimethoxy-5-E-phenylbutenolide, mixture of 4,6-dimethoxy-5-E-phenylbutenolide and 4,6-dimethoxy-5-Z-phenylbutenolide, or ibuprofen. One hour later, oxytocin was injected and the numbers of abdominal writhing were counted. Then, mice were euthanized and uteri were collected for morphometrical and histological analyses. The effects of P. malacophyllum in inflammation were investigated in mouse peritoneal neutrophils culture stimulated with LPS or fMLP (chemotaxis and mediator release). Finally, uterus contractile and relaxing responses were assessed. Similar to ibuprofen, P. malacophyllum extract and isolated compounds reduced abdominal writhing in mice with PD. Histology indicated a marked neutrophil and mast cell infiltrate in the uterus of PD animals which was attenuated by the extract. The compounds and the extract reduced neutrophil chemotaxis and inflammatory mediator release by these cells. Reduced TNF levels were also observed in uteri of PD mice treated with P. malacophyllum. The extract did not affect spontaneous uterine contractions nor those induced by carbachol or KCl. However, it caused relaxation of oxytocin-induced uterine contraction, an effect blunted by H1 receptor antagonist. Overall the results indicate that P. malacophyllum may represent interesting natural tools for reliving PD symptoms, reducing the triad of pain, inflammation and spasmodic uterus behaviour.
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Xiong H, Li N, Zhao L, Li Z, Yu Y, Cui X, Liu Q, Zhao C. Integrated Serum Pharmacochemistry, Metabolomics, and Network Pharmacology to Reveal the Material Basis and Mechanism of Danggui Shaoyao San in the Treatment of Primary Dysmenorrhea. Front Pharmacol 2022; 13:942955. [PMID: 35899122 PMCID: PMC9310033 DOI: 10.3389/fphar.2022.942955] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 06/10/2022] [Indexed: 11/13/2022] Open
Abstract
Danggui Shaoyao San (DSS), a well-known formula, has been successfully applied in treating primary dysmenorrhea (PD) in China. However, its material basis and mechanism are still unrevealed. This current research aims to reveal the material basis and mechanism of DSS in treating PD by an integrative approach of serum pharmacochemistry, metabolomics, and network pharmacology. The results showed that DSS markedly relieved the physiological and pathological symptoms of PD as confirmed by the improvement of writhing behavior, inhibition of uterine edema, callback of clinical biochemical indexes, and metabolic profiles. Furthermore, a metabolomic analysis demonstrated that the therapeutic effect of DSS was attributed to the modulation of arachidonic acid metabolism, pentose and glucuronate interconversions, and phenylalanine metabolism. Meanwhile, 23 blood ingredients were identified after the oral administration of DSS. By analyzing the correlation coefficient of the identified biomarkers and blood components, active compounds closely associated with core metabolic pathways were extracted. Taking these active compounds as a basis, network pharmacology prediction was executed. It was found that active components of DSS including alisol B,23-acetate, chlorogenic acid, levistilide A, cianidanol, senkyunolide A, atractylenolide II, and sedanolide, were germane to steroid hormone biosynthesis, arachidonic acid metabolism, sphingolipid signaling pathway, etc. Interestingly, PTGS2 and PTGS1 related to the arachidonic acid metabolism may be pivotal targets of DSS. The current study proved that the integration of serum pharmacochemistry, metabolomics, and network pharmacology, was a powerful approach to investigate the material basis and the molecular mechanisms of DSS, and provided a solid basis for DSS application.
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Affiliation(s)
- Hui Xiong
- Hebei Province Key Laboratory of Study and Exploitation of Chinese Medicine, Chengde Medical University, Chengde, China
- *Correspondence: Hui Xiong, ; Chunying Zhao,
| | - Na Li
- Hebei Key Laboratory of Nerve Injury and Repair, Chengde Medical University, Chengde, China
- Institute of Basic Medicine, Chengde Medical University, Chengde, China
| | - Lanqingqing Zhao
- Hebei Province Key Laboratory of Study and Exploitation of Chinese Medicine, Chengde Medical University, Chengde, China
| | - Zhe Li
- Hebei Province Key Laboratory of Study and Exploitation of Chinese Medicine, Chengde Medical University, Chengde, China
| | - Yongzhou Yu
- Hebei Key Laboratory of Nerve Injury and Repair, Chengde Medical University, Chengde, China
- Institute of Basic Medicine, Chengde Medical University, Chengde, China
| | - Xiaoyan Cui
- Hebei Institute for Drug and Medical Device Control, Shijiazhuang, China
| | - Qi Liu
- The Research Institute of Medicine and Pharmacy, Qiqihar Medical University, Qiqihar, China
| | - Chunying Zhao
- Hebei Province Key Laboratory of Study and Exploitation of Chinese Medicine, Chengde Medical University, Chengde, China
- *Correspondence: Hui Xiong, ; Chunying Zhao,
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Elbandrawy AM, Elhakk SM. Comparison between the effects of aerobic and isometric exercises on primary dysmenorrhea. ACTA GYMNICA 2021. [DOI: 10.5507/ag.2021.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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SONG QY, ZHOU YL, ZHOU B, CHEN XY, ZHANG RY, CHEN YJ. Study progress on the mechanism of acupuncture for primary dysmenorrhea针刺治疗原发性痛经作用机制研究进展. WORLD JOURNAL OF ACUPUNCTURE-MOXIBUSTION 2021. [DOI: 10.1016/j.wjam.2021.05.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Sun Z, Wu H, Wu Y, Wang C, Wang Y, Hu S, Du S. Comparative Analysis of Compatibility Influence on Invigorating Blood Circulation for Combined Use of Panax Notoginseng Saponins and Aspirin Using Metabolomics Approach. Front Pharmacol 2021; 12:544002. [PMID: 33995000 PMCID: PMC8120290 DOI: 10.3389/fphar.2021.544002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 03/24/2021] [Indexed: 01/03/2023] Open
Abstract
The combined use of Panax notoginseng saponins (PNS)–based drugs and aspirin (ASA) to combat vascular diseases has achieved good clinical results. In this study, the superior efficacy was observed via the combined use of PNS and ASA on acute blood stasis rats, and untargeted metabolomics was performed to holistically investigate the therapeutic effects of coupling application and its regulatory mechanisms. The combined use of PNS and ASA exhibited better improvement effects when reducing the evaluated hemorheological indicators (whole blood viscosity, plasma viscosity, platelet aggregation, and fibrinogen content) in the blood stasis rats vs. single use of PNS or ASA at the same dose. The combined use of both drugs was the most effective application method, as shown by the relative distance in partial least-squares discriminant analysis score plots. Twelve metabolites associated with blood stasis were screened as potential biomarkers and were mainly involved in amino acid metabolism, lipid metabolism, and energy metabolism. After coherently treated with PNS and ASA, the altered metabolites could be partially adjusted to be closer to normal levels than single use. The collective results revealed that PNS could cooperate with ASA to treat blood stasis and provided a scientific explanation for the superior efficacy of their combined use.
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Affiliation(s)
- Zongxi Sun
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China.,Institute of Ethnic Medicine, Guangxi International Zhuang Medicine Hospital, Nanning, China.,School of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China
| | - Huichao Wu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Yali Wu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China.,Department of Pharmacy, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, China
| | - Chenglong Wang
- Institute of Ethnic Medicine, Guangxi International Zhuang Medicine Hospital, Nanning, China
| | - Yu Wang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Shaonan Hu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Shouying Du
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
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Zhang K, Su J, Huang Y, Wang Y, Meng Q, Guan J, Xu S, Wang Y, Fan G. Untargeted metabolomics reveals the synergistic mechanisms of Yuanhu Zhitong oral liquid in the treatment of primary dysmenorrhea. J Chromatogr B Analyt Technol Biomed Life Sci 2021; 1165:122523. [PMID: 33497845 DOI: 10.1016/j.jchromb.2021.122523] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 10/05/2020] [Accepted: 01/01/2021] [Indexed: 12/26/2022]
Abstract
Primary dysmenorrhea is a prevalent gynecological disorder that severely affects the quality of life in women. Yuanhu Zhitong oral liquid (YZOL) is a standardized herbal preparation frequently used in clinical practice and is a promising alternative therapy for primary dysmenorrhea. The findings of previous studies show that YZOL exhibits significant analgesic and spasmolytic effects, however, the involved mechanism remains unclear. Herein, we performed an untargeted plasma metabolomic analysis on a mouse model of oxytocin-induced primary dysmenorrhea to investigate the underlying mechanism of YZOL. We used multivariate and pathway-driven analyses to uncover the treatment targets linked with YZOL therapy and verified the possible mechanisms through biochemical assays. Therefore, we identified 47 plasma biomarkers primarily associated with sphingolipid metabolism, amino acid metabolism, arachidonic acid metabolism, and biosynthesis of steroid hormone as well as primary bile acid. We established that the analgesic effect of YZOL on primary dysmenorrhea relies on multiple constituents that act on multiple targets in multiple pathways. Our correlation analysis showed significant correlations between the biomarkers and biochemical indicators, which is of considerable significance in elucidating the YZOL mechanisms. Moreover, we identified some novel prospective biomarkers linked to primary dysmenorrhea, including bile acids. Collectively, these data provide new insights into the mechanism of YZOL and provide evidence for the analgesic effect of YZOL in the treatment of primary dysmenorrhea.
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Affiliation(s)
- Kai Zhang
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, People's Republic of China; Tianjin Key Laboratory of Translational Research of TCM Prescription and Syndrome, Tianjin, People's Republic of China
| | - Jing Su
- State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, People's Republic of China
| | - Yuting Huang
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, People's Republic of China; State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, People's Republic of China
| | - Yingchao Wang
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, People's Republic of China
| | - Qingfen Meng
- Henan Fusen Pharmaceutical Co., Ltd., Henan, People's Republic of China
| | - Jianli Guan
- Henan Fusen Pharmaceutical Co., Ltd., Henan, People's Republic of China
| | - Shixin Xu
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, People's Republic of China; Tianjin Key Laboratory of Translational Research of TCM Prescription and Syndrome, Tianjin, People's Republic of China
| | - Yi Wang
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, People's Republic of China.
| | - Guanwei Fan
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, People's Republic of China; Tianjin Key Laboratory of Translational Research of TCM Prescription and Syndrome, Tianjin, People's Republic of China; State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, People's Republic of China.
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Network Pharmacology Strategy to Investigate the Pharmacological Mechanism of Siwu Decoction on Primary Dysmenorrhea and Molecular Docking Verification. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021. [DOI: 10.1155/2021/6662247] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Objective. To study the pharmacological mechanisms of Siwu decoction (SWD) on primary dysmenorrhea (PDM) and verify with molecular docking. Methods. The Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform (TCMSP) was utilized to acquire the active compounds and their corresponding target genes. The GeneCards database was utilized in the search for target genes that were associated with PDM. The intersection genes from the active target genes of SWD and those associated with PDM represented the active target genes of SWD that act on PDM. The Gene Ontology (GO) function enrichment and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses were both carried out by RGUI 3.6.1 and Cytoscape 3.6.0 software. Cytoscape was also utilized for creating a compound-target network, and a protein-protein interaction (PPI) network was created through the STRING database. Molecular docking simulations of the macromolecular protein target receptors and their corresponding compounds were performed using AutoDockTool 1.5.6 and AutoDock Vina software. Results. We identified 14 active compounds as well as 97 active target genes of SWD by using the TCMSP. We compared the 97 active target genes of SWD to the 299 target genes related to PDM, and 23 active target genes for SWD that act on PDM which correlated with 11 active compounds were detected. The compound-target network as well as the PPI network were created, in addition to selecting the most essential compounds and their targets in order to create a key compound-target network. The most essential compounds were kaempferol, beta-sitosterol, stigmasterol, and myricanone. The key targets were AKT1, PTGS2, ESR1, AHR, CASP3, and PGR. Lastly, molecular docking was used to confirm binding of the target with its corresponding compound. Conclusion. The pharmacological mechanisms of SWD that act on PDM were investigated, and the active compounds in the SWD for treating PDM were further verified.
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Miller JS, Rodriguez-Saona L, Hackshaw KV. Metabolomics in Central Sensitivity Syndromes. Metabolites 2020; 10:E164. [PMID: 32344505 PMCID: PMC7240948 DOI: 10.3390/metabo10040164] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 04/11/2020] [Accepted: 04/19/2020] [Indexed: 01/09/2023] Open
Abstract
Central sensitization syndromes are a collection of frequently painful disorders that contribute to decreased quality of life and increased risk of opiate abuse. Although these disorders cause significant morbidity, they frequently lack reliable diagnostic tests. As such, technologies that can identify key moieties in central sensitization disorders may contribute to the identification of novel therapeutic targets and more precise treatment options. The analysis of small molecules in biological samples through metabolomics has improved greatly and may be the technology needed to identify key moieties in difficult to diagnose diseases. In this review, we discuss the current state of metabolomics as it relates to central sensitization disorders. From initial literature review until Feb 2020, PubMed, Embase, and Scopus were searched for applicable studies. We included cohort studies, case series, and interventional studies of both adults and children affected by central sensitivity syndromes. The majority of metabolomic studies addressing a CSS found significantly altered metabolites that allowed for differentiation of CSS patients from healthy controls. Therefore, the published literature overwhelmingly supports the use of metabolomics in CSS. Further research into these altered metabolites and their respective metabolic pathways may provide more reliable and effective therapeutics for these syndromes.
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Affiliation(s)
- Joseph S. Miller
- Department of Medicine, Ohio University Heritage College of Osteopathic Medicine, Dublin, OH 43016, USA;
| | - Luis Rodriguez-Saona
- Department of Food Science and Technology, Ohio State University, Columbus, OH 43210, USA;
| | - Kevin V. Hackshaw
- Department of Internal Medicine, Division of Rheumatology, Dell Medical School, The University of Texas, 1701 Trinity St, Austin, TX 78712, USA
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Zhang YN, Huo JW, Huang YR, Hao Y, Chen ZY. Altered amplitude of low-frequency fluctuation and regional cerebral blood flow in females with primary dysmenorrhea: a resting-state fMRI and arterial spin labeling study. J Pain Res 2019; 12:1243-1250. [PMID: 31114306 PMCID: PMC6489567 DOI: 10.2147/jpr.s177502] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2018] [Accepted: 02/14/2019] [Indexed: 12/12/2022] Open
Abstract
Purpose: The current study aimed to explore the central mechanism of primary dysmenorrhea (PD) by investigating the alterations in resting state amplitude of low-frequency fluctuation (ALFF) and regional cerebral blood flow (CBF) between PD patients and healthy controls (HCs). Patients and methods: A total of 34 female subjects including 20 PD patients and 14 HCs underwent resting-state functional magnetic resonance imaging (rs-fMRI) and arterial spin labeling technique (ASL) MRI during menstrual phase. Subsequently, the differences in ALFF and CBF were compared in the two groups. The visual analog scores for pain (VAS-P) and for anxiety (VAS-A) were applied to assess cramping pain and related symptoms in PD patients. Finally, Pearson's correlation analysis was performed to analyze relationships between the neuroimaging findings and clinical characteristics. Results: Compared to HCs, PD patients had decreased ALFF in the right cerebellum posterior lobe, right middle temporal gyrus, right parahippocampal gyrus, right hippocampus, right brainstem and left parietal lobe. In addition, elevated CBF values were observed in the right inferior frontal gyrus, right precentral gyrus, and right superior temporal gyrus. There was no significant correlation between ALFF, CBF values and clinical characteristics including onset age of dysmenorrhea, VAS-A, and VAS-P in PD patients. Conclusion: The preliminary alterations of ALFF and CBF values in PD patients were observed in different pain-related brain regions, which were involved in multiple dimensions of pain and pain modulation. The combination of rs-fMRI and ASL MRI might provide complementary information for a better understanding of the central mechanism in PD.
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Affiliation(s)
- Ya-Nan Zhang
- Department of Radiology, Beijing Hospital of Traditional Chinese Medicine Affiliated to Capital Medical University, Beijing100010, People’s Republic of China
| | - Jian-Wei Huo
- Department of Radiology, Beijing Hospital of Traditional Chinese Medicine Affiliated to Capital Medical University, Beijing100010, People’s Republic of China
| | - Yi-Ran Huang
- School of Acupuncture-Moxibustion & Tuina, Beijing University of Chinese Medicine, Beijing, 100029, People’s Republic of China
| | - Ying Hao
- Beijing International Center for Mathematical Research, Peking University, Beijing100871, People’s Republic of China
| | - Zi-Yue Chen
- Department of Acupuncture and Moxibustion, Yanshan Hospital, Beijing102500, People’s Republic of China
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Abstract
Urine is a biological matrix that contains hundreds of metabolic end products which constitute the urinary metabolome. The development and advances on LC-MS/MS have revolutionized the analytical study of biomolecules by enabling their accurate identification and quantification in an unprecedented manner. Nowadays, LC-MS/MS is helping to unveil the complexity of urine metabolome, and the results obtained have multiple biomedical applications. This review focuses on the targeted LC-MS/MS analysis of the urine metabolome. In the first part, we describe general considerations (from sample collection to quantitation) required for a proper targeted metabolic analysis. In the second part, we address the urinary analysis and recent applications of four relevant families: amino acids, catecholamines, lipids and steroids.
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