1
|
Gebetsberger J, Prüller F. Classic Light Transmission Platelet Aggregometry: Do We Still Need it? Hamostaseologie 2024; 44:304-315. [PMID: 38065556 DOI: 10.1055/a-2117-4614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/18/2024] Open
Abstract
For more than 50 years, light transmission aggregometry has been accepted as the gold standard test for diagnosing inherited platelet disorders in platelet-rich plasma, although there are other functional approaches performed in whole blood. In this article, several advantages and disadvantages of this technique over other laboratory approaches are discussed in the view of recent guidelines, and the necessity of functional assays, such as light transmission aggregometry in the era of molecular genetic testing, is highlighted.
Collapse
Affiliation(s)
| | - Florian Prüller
- Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, Graz, Austria
| |
Collapse
|
2
|
Zhu X, Zhao J, Hong X, Zhang Y, Yang X, Zhang H, Zhang R, Wang Y, Xuan Y, Peng Z, Zhang Y, Wang Q, Shen H, Zhang Y, Yan D, Ma X, Wang B. The Association Between the Maternal Pre-pregnancy Platelet Count and Fecundability in Mainland China: A Population-based Cohort Study. J Epidemiol 2024; 34:340-348. [PMID: 37981320 PMCID: PMC11167265 DOI: 10.2188/jea.je20230191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 11/06/2023] [Indexed: 11/21/2023] Open
Abstract
BACKGROUND Currently, awareness about platelet count (PC) and its consequences for perinatal outcome have increased, but there is little reliable evidence on fecundability. METHODS Based on the National Free Pre-conception Check-up Projects supported by the Chinese government, 5,524,886 couples met the inclusion criteria and were included in this cohort study. Cox regression models were adopted to estimate fecundability ratios (FRs) and their 95% confidence intervals (CIs) for pre-pregnancy PC quintiles. Restricted cubic splines were used to flexibly model and visualize the relationship of PC with FRs. Microsoft SQL server and R software were used for data management and analysis. RESULTS The median of pre-pregnancy PC among women was 221.00 × 109/L. The first (<177.00 × 109/L) and second quintile (177.00-207.99 × 109/L) of PC showed slightly increased fecundability (Q1: adjusted FR 1.05; 95% CI, 1.04-1.06; Q2: adjusted FR 1.04; 95% CI, 1.03-1.05), while higher quintals (Q4: 236.00-271.99 × 109/L; Q5: ≥272.00 × 109/L) were related to reduction of fecundability, when compared with the third quintile of PC (208.00-235.99 × 109/L) (Q4: adjusted FR 0.96; 95% CI, 0.95-0.97; Q5: adjusted FR 0.88; 95% CI, 0.87-0.89). In the first quintiles (<177.00 × 109/L), only 20.93% women had PC below 129.94 × 109/L. An inverse-U-shaped association was consistently observed among women such that the lower PC within the normal range (<118.03 × 109/L) and higher PC (>223.06 × 109/L) were associated with the risk of reduced female fecundability (P for non-linearity < 0.01). CONCLUSION PC is associated with female fecundability. Further classification of PC levels may deepen our understanding of the early warnings and significance of female fecundability.
Collapse
Affiliation(s)
- Xiaoyue Zhu
- Key Laboratory of Environment Medicine and Engineering of Ministry of Education, Department of Epidemiology and Health Statistics, School of Public Health, Southeast University, Nanjing, China
- Shanghai Key Laboratory of Sleep Disordered Breathing, Department of Otolaryngology Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Jun Zhao
- National Research Institute for Family Planning, Beijing, China
- National Human Genetic Resources Center, Beijing, China
| | - Xiang Hong
- Key Laboratory of Environment Medicine and Engineering of Ministry of Education, Department of Epidemiology and Health Statistics, School of Public Health, Southeast University, Nanjing, China
| | - Yue Zhang
- National Research Institute for Family Planning, Beijing, China
- National Human Genetic Resources Center, Beijing, China
| | - Xueying Yang
- National Research Institute for Family Planning, Beijing, China
- National Human Genetic Resources Center, Beijing, China
| | - Hongguang Zhang
- National Research Institute for Family Planning, Beijing, China
- National Human Genetic Resources Center, Beijing, China
| | - Rong Zhang
- Key Laboratory of Environment Medicine and Engineering of Ministry of Education, Department of Epidemiology and Health Statistics, School of Public Health, Southeast University, Nanjing, China
| | - Yuanyuan Wang
- National Research Institute for Family Planning, Beijing, China
- National Human Genetic Resources Center, Beijing, China
| | - Yan Xuan
- Key Laboratory of Environment Medicine and Engineering of Ministry of Education, Department of Epidemiology and Health Statistics, School of Public Health, Southeast University, Nanjing, China
| | - Zuoqi Peng
- National Research Institute for Family Planning, Beijing, China
- National Human Genetic Resources Center, Beijing, China
| | - Ya Zhang
- National Research Institute for Family Planning, Beijing, China
- National Human Genetic Resources Center, Beijing, China
| | - Qiaomei Wang
- Department of Maternal and Child Health, National Health Commission of the People’s Republic of China, Beijing, China
| | - Haiping Shen
- Department of Maternal and Child Health, National Health Commission of the People’s Republic of China, Beijing, China
| | - Yiping Zhang
- Department of Maternal and Child Health, National Health Commission of the People’s Republic of China, Beijing, China
| | - Donghai Yan
- Department of Maternal and Child Health, National Health Commission of the People’s Republic of China, Beijing, China
| | - Xu Ma
- National Research Institute for Family Planning, Beijing, China
- National Human Genetic Resources Center, Beijing, China
| | - Bei Wang
- Key Laboratory of Environment Medicine and Engineering of Ministry of Education, Department of Epidemiology and Health Statistics, School of Public Health, Southeast University, Nanjing, China
| |
Collapse
|
3
|
Stančiaková L, Othman M, Kubisz P. Management of Venous and Arterial Thrombosis. J Clin Med 2024; 13:2744. [PMID: 38792286 PMCID: PMC11122507 DOI: 10.3390/jcm13102744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Accepted: 04/11/2024] [Indexed: 05/26/2024] Open
Abstract
A thrombus is a hemostatic plug localized in a blood vessel [...].
Collapse
Affiliation(s)
- Lucia Stančiaková
- National Centre of Haemostasis and Thrombosis, Department of Haematology and Transfusion Medicine, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin University Hospital, 036 59 Martin, Slovakia;
| | - Maha Othman
- Department of Biomedical and Molecular Sciences, School of Medicine, Queen’s University, Kingston, ON K7L 3N6, Canada;
| | - Peter Kubisz
- National Centre of Haemostasis and Thrombosis, Department of Haematology and Transfusion Medicine, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin University Hospital, 036 59 Martin, Slovakia;
| |
Collapse
|
4
|
DNA Polymorphisms in Pregnant Women with Sticky Platelet Syndrome. J Clin Med 2022; 11:jcm11216532. [PMID: 36362759 PMCID: PMC9657965 DOI: 10.3390/jcm11216532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 10/25/2022] [Accepted: 11/01/2022] [Indexed: 11/06/2022] Open
Abstract
Sticky platelet syndrome (SPS) is a thrombophilia caused by the increased aggregability of platelets in response to the addition of low concentrations of epinephrine (EPI) and/or adenosine diphosphate (ADP). Some of the single nucleotide polymorphisms (SNP), alleles and haplotypes of platelet glycoprotein receptors were proved to have a role in the etiology of thrombotic episodes When comparing SPS and the control group, in VEGFA rs3025039, the p value for both CC vs. TT and CT vs. TT analyses was <0.001. Interestingly, no minor TT genotype was present in the SPS group, suggesting the thrombotic pathogenesis of recurrent spontaneous abortions (RSA) in these patients. Moreover, we found a significant difference in the presence of AT containing a risky A allele and TT genotype of ALPP rs13026692 (p = 0.034) in SPS patients when compared with the controls. Additionally, we detected a decreased frequency of the GG (CC) genotype of FOXP3 rs3761548 in patients with SPS and RSA when compared with the control group (p value for the CC (GG) vs. AA (TT) 0.021). This might indicate an evolutionary protective mechanism of the A (T) allele in the SPS group against thrombotic complications in pregnancy. These results can be used for antithrombotic management in such pregnant patients.
Collapse
|
5
|
Stasko J, Holly P, Kubisz P. A new decade awaits sticky platelet syndrome: where are we now, how do we manage and what are the complications? Expert Rev Hematol 2022; 15:53-63. [PMID: 35034520 DOI: 10.1080/17474086.2022.2030217] [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] [Indexed: 12/13/2022]
Abstract
INTRODUCTION Sticky platelet syndrome is a less known platelet function disorder with a familiar occurrence and likely genetic background. Clinically, it is characterized by an increased risk of venous and arterial thromboembolic events and obstetric placenta-mediated complications. The increased aggregation after low-dose ADP and/or epinephrine is its distinctive laboratory feature. Though described for almost 40 years, several issues regarding its etiology, involved pathomechanisms, genetic background, optimal diagnostic and treatment approach remain controversial. AREAS COVERED The work aims to summarize published studies, the actual definition of the syndrome, and point out its drawbacks. A literature search on Medline, Embase, and archives from EHA congresses was performed (terms: 'sticky platelet syndrome' - 'platelet hyperreactivity' - 'platelet hyperaggregability'). The authors added in their unpublished data. The introductory overview of the present understanding is followed by the discussion of the pathophysiologic, diagnostic, and therapeutic problems. EXPERT OPINION Despite the growing evidence provided by case reports and series, the lack of robust studies limits the decision-making on diagnostics and management. The diagnostic issues, particularly the standardization of light transmission aggregometry, represent the crucial problem for the broader acceptance of the syndrome.
Collapse
Affiliation(s)
- Jan Stasko
- Department of Hematology and Transfusion Medicine, National Center of Hemostasis and Thrombosis, Jessenius Faculty of Medicine in Martin of the Comenius University in Bratislava, University Hospital in Martin, Martin, Slovakia
| | - Pavol Holly
- Department of Hematology and Transfusion Medicine, National Center of Hemostasis and Thrombosis, University Hospital in Martin, Martin, Slovakia
| | - Peter Kubisz
- Department of Hematology and Transfusion Medicine, National Center of Hemostasis and Thrombosis, Jessenius Faculty of Medicine in Martin of the Comenius University in Bratislava, University Hospital in Martin, Martin, Slovakia
| |
Collapse
|
6
|
Adelakun SA, Ojewale AO, Jeje SO, Adedotun OA. Histomorphometric and biochemical activities of bioactive component of Cyperus esculentus tubers extract on letrozole-induced polycystic ovarian syndrome and cholesterol homeostasis in female Sprague-Dawley rats. TOXICOLOGY RESEARCH AND APPLICATION 2022. [DOI: 10.1177/23978473221109475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Polycystic ovary syndrome (PCOS) is a heterogeneous endocrine and metabolic disorder, causes irregular menstrual cycles, dyslipidemia, excessive body weight, oxidative stress, hyperandrogenism, and infertility. This study focused on the impact of Cyperus esculentus (CES) on letrozole-induced PCOS in female Sprague-Dawley rats. Twenty (20) normal rats and twenty (20) PCOS rats (150–200 g, 8 weeks old) were randomly divided into four groups of ten ( n = 10) rats each. Group A served as normal control group received 2 mL of normal saline, group B treated with 500 mg/kg body weight of CES , group C PCOS control group received 2 mL of normal saline, and group D PCOS rats post-treated with 500 mg/kg body weight of CES daily through gastric gavage for 30 days. Estrus cyclicity, body and ovaries weights, biochemical and histological parameters were measured. Observed irregular estrus cyclicity and multiple cysts in PCOS rats, increase glycemia, ovarian weight, triglycerides, total cholesterol, low-density lipoprotein cholesterol, very low-density lipoprotein cholesterol, malondialdehyde, luteinizing hormone (LH), testosterone, and decrease high-density lipoprotein cholesterol, estradiol, progesterone, catalase, reduced glutathione (GSH), and superoxide dismutase levels, compared with control. The intervention of CES ameliorated and restored the estrus cyclicity reproductive hormone, biochemical, and structural alterations. Moreover, CES significantly decreased cystic follicles, LH, and testosterone levels, but increased estradiol concentration. This plant may be beneficial in the management and treatment of PCOS-related reproductive and metabolic disorders.
Collapse
Affiliation(s)
- Sunday A Adelakun
- Department of Human Anatomy, College of Health Sciences, Federal University of Technology, Akure, Nigeria
- Department of Anatomy, College of Health Sciences, Ladoke Akintola University of Technology, Ogbomoso, Nigeria
| | - Abdulfatai O Ojewale
- Department of Anatomy, College of Medicine, Lagos State University, Lagos, Nigeria
| | - Sikirullai O Jeje
- Department of Human Physiology, College of Health Sciences, Federal University of Technology, Akure, Nigeria
| | - Oluwafemi A Adedotun
- Department of Human Anatomy, College of Health Sciences, Federal University of Technology, Akure, Nigeria
| |
Collapse
|
7
|
Stamou M, Intzes S, Symeonidou M, Bazntiara I, Bezirgiannidou Z, Pentidou A, Misidou C, Liapis K, Margaritis D, Kotsianidis I, Spanoudakis E. Reproductive Failure and Thrombophilia: Not Enough Evidence for a Tight Bond. Acta Haematol 2021; 145:170-175. [PMID: 34879375 DOI: 10.1159/000520439] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 10/21/2021] [Indexed: 11/19/2022]
Abstract
OBJECTIVES The role of hereditary thrombophilia in reproductive failure (RF) is strongly debatable. In this retrospective single-center study, we analyzed pregnancy outcome in 175 women screened for thrombophilia after at least one event of RF. RESULTS The prevalence of thrombophilia in our cohort was 33.4%. Pregnancy survival curves were not different according to severity (log-rank, p = 0.302) or type of thrombophilia (log-rank, p = 0.532). In total, 81.7% of 175 subsequent pregnancies were proceeded with LMWH. Concomitant use of ASA was prescribed in 75 pregnancies according to physician choice. The primary endpoint was live birth rate (LBR) that succeeded in 152/175 next pregnancies (86.8%) and late obstetric complications (LOBC) which occurred in 17/175 next pregnancies (9.8%). In logistic regression analysis, neither the severity nor the type of thrombophilia was important for any pregnancy outcome (LBR or LOBC). Considering therapeutic interventions, the use of LMWH ± ASA was not related to LBR or LOBC. The only factor inversely related to LBR was age above the cutoff value of 35.5 years (p = 0.049). CONCLUSIONS Incidence of thrombophilia is increased among women with RF, but the severity or type of thrombophilia is not related to pregnancy outcome.
Collapse
Affiliation(s)
- Maria Stamou
- Department of Hematology, Medical School, Democritus University of Thrace, Alexandroupolis, Greece,
| | - Stergios Intzes
- Department of Hematology, Medical School, Democritus University of Thrace, Alexandroupolis, Greece
| | - Marianthi Symeonidou
- Department of Hematology, Medical School, Democritus University of Thrace, Alexandroupolis, Greece
| | - Ioanna Bazntiara
- Department of Hematology, Medical School, Democritus University of Thrace, Alexandroupolis, Greece
| | - Zoe Bezirgiannidou
- Department of Hematology, Medical School, Democritus University of Thrace, Alexandroupolis, Greece
| | - Aikaterini Pentidou
- Department of Hematology, Medical School, Democritus University of Thrace, Alexandroupolis, Greece
| | - Christina Misidou
- Department of Hematology, Medical School, Democritus University of Thrace, Alexandroupolis, Greece
| | - Konstantinos Liapis
- Department of Hematology, Medical School, Democritus University of Thrace, Alexandroupolis, Greece
| | - Dimitrios Margaritis
- Department of Hematology, Medical School, Democritus University of Thrace, Alexandroupolis, Greece
| | - Ioannis Kotsianidis
- Department of Hematology, Medical School, Democritus University of Thrace, Alexandroupolis, Greece
| | - Emmanouil Spanoudakis
- Department of Hematology, Medical School, Democritus University of Thrace, Alexandroupolis, Greece
| |
Collapse
|
8
|
Romano D, Boyle M, Isla AE, Teasdall RJ, Srinath A, Aneja A. Hypercoagulable Disorders in Orthopaedics: Etiology, Considerations, and Management. JBJS Rev 2021; 9:01874474-202110000-00003. [PMID: 34637409 DOI: 10.2106/jbjs.rvw.21.00079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
» Hypercoagulable disorders (HCDs) can be inherited or acquired. An HCD of either etiology increases the chance of venous thromboembolic events (VTEs). » Patients with an HCD often have the condition discovered only after surgical complications. » We recommend that patients with a concern for or a known HCD be referred to the appropriate hematological specialist for workup and treatment. » Tourniquet use in the orthopaedic patient with an HCD is understudied and controversial. We recommend that tourniquets be avoided in the surgical management of patients with an HCD, if possible. When tourniquets are applied to patients with unknown HCD status, close follow-up and vigilant postoperative examinations should be undertaken.
Collapse
Affiliation(s)
- David Romano
- Riverside Regional Medical Center, Newport News, Virginia
| | - Maxwell Boyle
- Department of Orthopaedic Surgery, University of Kentucky, Lexington, Kentucky
| | - Alexander E Isla
- Department of Orthopaedic Surgery, University of Kentucky, Lexington, Kentucky
| | - Robert J Teasdall
- Department of Orthopaedic Surgery, University of Kentucky, Lexington, Kentucky
| | - Arjun Srinath
- Department of Orthopaedic Surgery, University of Kentucky, Lexington, Kentucky
| | - Arun Aneja
- Department of Orthopaedic Surgery, University of Kentucky, Lexington, Kentucky
| |
Collapse
|
9
|
García-Villaseñor E, Bojalil-Álvarez L, Murrieta-Álvarez I, Cantero-Fortiz Y, Ruiz-Delgado GJ, Ruiz-Argüelles GJ. Primary Thrombophilia XVI: A Look at the Genotype of the Sticky Platelet Syndrome Phenotype. Clin Appl Thromb Hemost 2021; 27:10760296211044212. [PMID: 34617458 PMCID: PMC8674482 DOI: 10.1177/10760296211044212] [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] [Indexed: 12/31/2022] Open
Abstract
The sticky platelet syndrome (SPS) was described by Mammen in 1983. Since then,
scientists in several countries have identified the condition and published
cases or series of patients, thus enabling the description of the prevalence of
the inherited condition, its salient clinical features, and the treatment of the
disease. The diagnosis of the SPS phenotype requires fresh blood samples and
special equipment which is not available in all coagulation laboratories. In the
era of molecular biology, up to now it has not been possible to define a clear
association of the SPS phenotype with a specific molecular marker. Some
molecular changes which have been described in platelet proteins in some persons
with the phenotype of the SPS are here discussed. Nowadays, the SPS phenotype
may be considered as a risk factor for thrombosis and most cases of the SPS
developing vaso-occlussive episodes are the result of its coexistence with other
thrombosis-prone conditions, some of the inherited and some of them acquired,
thus leading to the concept of multifactorial thrombophilia. Ignoring all these
evidence-based concepts is inappropriate, same as stating that the SPS is a
nonentity simply because not all laboratories are endowed with adequate
equipment to support the diagnosis.
Collapse
Affiliation(s)
- Elizabeth García-Villaseñor
- Centro de Hematología y Medicina Interna de Puebla, Puebla, México.,3972Benemérita Universidad Autónoma de Puebla, Puebla, México
| | - Lorena Bojalil-Álvarez
- Centro de Hematología y Medicina Interna de Puebla, Puebla, México.,27861Universidad Popular Autónoma del Estado de Puebla, Puebla, México
| | - Iván Murrieta-Álvarez
- Centro de Hematología y Medicina Interna de Puebla, Puebla, México.,27861Universidad Popular Autónoma del Estado de Puebla, Puebla, México
| | - Yahveth Cantero-Fortiz
- Centro de Hematología y Medicina Interna de Puebla, Puebla, México.,27806Universidad de las Américas Puebla, Puebla, México
| | - Guillermo J Ruiz-Delgado
- Centro de Hematología y Medicina Interna de Puebla, Puebla, México.,27861Universidad Popular Autónoma del Estado de Puebla, Puebla, México.,56079Laboratorios Clínicos de Puebla, Puebla, México
| | - Guillermo J Ruiz-Argüelles
- Centro de Hematología y Medicina Interna de Puebla, Puebla, México.,27861Universidad Popular Autónoma del Estado de Puebla, Puebla, México.,56079Laboratorios Clínicos de Puebla, Puebla, México
| |
Collapse
|
10
|
The Role and Molecular Mechanism of P2Y12 Receptors in the Pathogenesis of Atherosclerotic Cardiovascular Diseases. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11199078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The P2Y receptor family is a class of G protein-coupled receptors activated primarily by adenosine triphosphate (ATP), adenosine diphosphate (ADP), uridine triphosphate (UTP) and uridine diphosphate (UDP). The P2Y12 receptor is expressed on platelets which mediates platelet aggregation and morphological changes. At the same time, during the process of vascular remodeling and atherosclerosis, ADP can also promote the migration and proliferation of vascular smooth muscle and endothelial cells through P2Y12 receptor activating. Furthermore, P2Y12 is involved in many signal transductions processes, such as intimal hyperplasia, monocyte infiltration and so on, which play an important role in immune inflammation and brain injury. In order to solve the diseases induced by P2Y12 receptor, inhibitors such as ticagrelor, clopidogrel were widely used for cardiovascular diseases. However, there were some problems, such as limited antithrombotic effect, remain unsolved. This article summarizes the role and molecular mechanism of P2Y12 receptors in the pathogenesis of cardiovascular-related diseases, providing in-depth expounding on the molecular mechanism of P2Y12 receptor inhibitors and contributing to the treatment of diseases based on P2Y12 receptors.
Collapse
|
11
|
Mvondo MA, Mzemdem Tsoplfack FI, Awounfack CF, Njamen D. The leaf aqueous extract of Myrianthus arboreus P. Beauv. (Cecropiaceae) improved letrozole-induced polycystic ovarian syndrome associated conditions and infertility in female Wistar rats. BMC Complement Med Ther 2020; 20:275. [PMID: 32917200 PMCID: PMC7488433 DOI: 10.1186/s12906-020-03070-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 09/01/2020] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Myrianthus arboreus P. Beauv. (Cecropiaceae) is a medicinal plant used to treat female infertility. The aqueous extract of M. arboreus leaves was found to improve the fertility of healthy female Wistar rats. In the present study, we proposed evaluating the effects of such an extract on an animal model of infertility caused by polycystic ovary syndrome (PCOS), in order to bring scientific evidence to the curative action of this plant against female infertility. METHODS Following a 21-day administration (gavage) of letrozole (1 mg/kg), animals with PCOS, indicated by overweight and an estrous cycle blocked in the diestrus phase, were co-treated with letrozole (1 mg/kg) and the aqueous extract of M. arboreus leaves at doses of 20, 110 and 200 mg/kg. The positive control received clomiphene citrate (1 mg/kg) and metformin (200 mg/kg). The negative control received distilled water. Each group of animals was made up of 10 female rats. Vaginal smear was examined 7 days before and during co-treatments. Co-treatments were orally administered for 30 consecutive days and 5 animals per group were sacrificed thereafter for biochemical and histological analyses. The 5 remaining animals in each group were crossbred with males of proven fertility for 5 consecutive days. The daily examination of vaginal smears allowed evaluating fertility index. Following parturition, gestation rate was calculated. RESULTS The aqueous extract of M. arboreus leaves reversed letrozole effects by decreasing body weight, abdominal fat accumulation, and serum levels of LH and testosterone (p < 0.001). Ovarian dynamic was improved and the number of tertiary, Graafian follicles (p < 0.001) and corpus luteum increased while that of cystic (p < 0.001) and atretic follicles (p < 0.01) decreased. These effects were associated with increased serum levels of estradiol, decreased ovarian oxidative stress, the resumption of the estrous cycle, the hypertrophy of uterine epithelial cells and increased fertility index and gestation rate. CONCLUSIONS These results justify at least in part, the traditional use of M. arboreus against female infertility and suggest that this plant could be a promising alternative treatment to improve symptoms associated with different PCOS phenotypes.
Collapse
Affiliation(s)
- Marie Alfrede Mvondo
- Research Unit of Animal Physiology and Phytopharmacology, University of Dschang, P.O. Box 67, Dschang, Cameroon.
| | | | | | - Dieudonné Njamen
- Laboratory of Animal Physiology, University of Yaounde 1, P.O. Box 812, Yaounde, Cameroon
| |
Collapse
|
12
|
An HJ, Ahn EH, Kim JO, Ryu CS, Park HS, Cho SH, Kim JH, Lee WS, Lee JR, Kim YR, Kim NK. Association between Platelet-Specific Collagen Receptor Glycoprotein 6 Gene Variants, Selected Biomarkers, and Recurrent Pregnancy Loss in Korean Women. Genes (Basel) 2020; 11:genes11080862. [PMID: 32751271 PMCID: PMC7464359 DOI: 10.3390/genes11080862] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 07/13/2020] [Accepted: 07/25/2020] [Indexed: 01/31/2023] Open
Abstract
This paper investigates whether glycoprotein 6 (GP6) gene polymorphisms are a risk factor for recurrent pregnancy loss (RPL) in Korean women. Genotypes were determined by polymerase chain reaction-restriction fragment length polymorphism and real-time polymerase chain reaction amplification. We identified five polymorphisms in the GP6 gene: rs1654410 T>C, rs1671153 T>G, rs1654419 G>A, rs12610286 A>G, and rs1654431 G>A. GP6 rs1654410 CC was associated with decreased RPL risk (adjusted odds ratio = 0.292, 95% confidence interval = 0.105–0.815, p = 0.019), and recessive genotypes were also significantly associated with decreased RPL risk (adjusted odds ratio = 0.348, 95% confidence interval = 0.128−0.944, p = 0.038). GP6 rs1654419 GA was associated with decreased RPL risk (adjusted odds ratio = 0.607, 95% confidence interval = 0.375-0.982, p = 0.042), and dominant genotypes were significantly associated with decreased RPL risk (adjusted odds ratio = 0.563, 95% confidence interval = 0.358−0.885, p = 0.013). Altogether, the genotype frequencies of GP6 rs1654410 T>C and GP6 rs1654419 G>A were significantly different between RPL patients and control participants. Therefore, although GP6 polymorphisms may be useful as biomarkers of RPL, additional studies with heterogeneous cohorts are required to better understand the influence of GP6 and assess its performance as a biomarker.
Collapse
Affiliation(s)
- Hui Jeong An
- Department of Biomedical Science, College of Life Science, CHA University, Seongnam 13488, Korea; (H.J.A.); (J.O.K.); (C.S.R.); (H.S.P.); (S.H.C.)
| | - Eun Hee Ahn
- Department of Obstetrics and Gynecology, CHA Bundang Medical Center, School of Medicine, CHA University, Seongnam 13488, Korea; (E.H.A.); (J.H.K.)
| | - Jung Oh Kim
- Department of Biomedical Science, College of Life Science, CHA University, Seongnam 13488, Korea; (H.J.A.); (J.O.K.); (C.S.R.); (H.S.P.); (S.H.C.)
| | - Chang Soo Ryu
- Department of Biomedical Science, College of Life Science, CHA University, Seongnam 13488, Korea; (H.J.A.); (J.O.K.); (C.S.R.); (H.S.P.); (S.H.C.)
| | - Han Sung Park
- Department of Biomedical Science, College of Life Science, CHA University, Seongnam 13488, Korea; (H.J.A.); (J.O.K.); (C.S.R.); (H.S.P.); (S.H.C.)
| | - Sung Hwan Cho
- Department of Biomedical Science, College of Life Science, CHA University, Seongnam 13488, Korea; (H.J.A.); (J.O.K.); (C.S.R.); (H.S.P.); (S.H.C.)
| | - Ji Hyang Kim
- Department of Obstetrics and Gynecology, CHA Bundang Medical Center, School of Medicine, CHA University, Seongnam 13488, Korea; (E.H.A.); (J.H.K.)
| | - Woo Sik Lee
- Fertility Center of CHA Gangnam Medical Center, CHA University, Seoul 061, Korea;
| | - Jung Ryeol Lee
- Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seongnam 13620, Korea;
| | - Young Ran Kim
- Department of Obstetrics and Gynecology, CHA Bundang Medical Center, School of Medicine, CHA University, Seongnam 13488, Korea; (E.H.A.); (J.H.K.)
- Correspondence: (Y.R.K.); (N.K.K.); Tel.: +82-31-780-5293 (Y.R.K.); +82-31-881-7137 (N.K.K.)
| | - Nam Keun Kim
- Department of Biomedical Science, College of Life Science, CHA University, Seongnam 13488, Korea; (H.J.A.); (J.O.K.); (C.S.R.); (H.S.P.); (S.H.C.)
- Correspondence: (Y.R.K.); (N.K.K.); Tel.: +82-31-780-5293 (Y.R.K.); +82-31-881-7137 (N.K.K.)
| |
Collapse
|