1
|
Kim JH, Lee SJ, Cha JJ, Park JH, Hong SJ, Ahn TH, Kim BK, Chang K, Park Y, Song YB, Ahn SG, Suh JW, Lee SY, Cho JR, Her AY, Jeong YH, Kim HS, Kim MH, Shin ES, Lim DS. Prognostic Impact of CYP2C19 Genotypes on Long-Term Clinical Outcomes in Older Patients After Percutaneous Coronary Intervention. J Am Heart Assoc 2024; 13:e032248. [PMID: 38761068 PMCID: PMC11179831 DOI: 10.1161/jaha.123.032248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 04/17/2024] [Indexed: 05/20/2024]
Abstract
BACKGROUND Carriers of CYP2C19 loss-of-function alleles have increased adverse events after percutaneous coronary intervention, but limited data are available for older patients. We aimed to evaluate the prognostic impact of CYP2C19 genotypes on clinical outcomes in older patients after percutaneous coronary intervention. METHODS AND RESULTS The study included 1201 older patients (aged ≥75 years) who underwent percutaneous coronary intervention and received clopidogrel-based dual antiplatelet therapy in South Korea. Patients were grouped on the basis of CYP2C19 genotypes. The primary outcome was 3-year major adverse cardiac events, defined as a composite of cardiac death, myocardial infarction, and stent thrombosis. Older patients were grouped into 3 groups: normal metabolizer (36.6%), intermediate metabolizer (48.1%), and poor metabolizer (15.2%). The occurrence of the primary outcome was significantly different among the groups (3.1, 7.0, and 6.2% in the normal metabolizer, intermediate metabolizer, and poor metabolizer groups, respectively; P=0.02). The incidence rate of all-cause death at 3 years was greater in the intermediate metabolizer and poor metabolizer groups (8.1% and 9.2%, respectively) compared with that in the normal metabolizer group (3.5%, P=0.03) without significant differences in major bleeding. In the multivariable analysis, the intermediate metabolizer and poor metabolizer groups were independent predictors of 3-year clinical outcomes. CONCLUSIONS In older patients, the presence of any CYP2C19 loss-of-function allele was found to be predictive of a higher incidence of major adverse cardiac events within 3 years following percutaneous coronary intervention. This finding suggests a need for further investigation into an optimal antiplatelet strategy for older patients. REGISTRATION URL: https://clinicaltrials.gov. Identifier: NCT04734028.
Collapse
Affiliation(s)
- Ju Hyeon Kim
- Department of Cardiology, Cardiovascular Center Korea University Anam Hospital, Korea University College of Medicine Seoul South Korea
| | | | - Jung-Joon Cha
- Department of Cardiology, Cardiovascular Center Korea University Anam Hospital, Korea University College of Medicine Seoul South Korea
| | - Jae Hyoung Park
- Department of Cardiology, Cardiovascular Center Korea University Anam Hospital, Korea University College of Medicine Seoul South Korea
| | - Soon Jun Hong
- Department of Cardiology, Cardiovascular Center Korea University Anam Hospital, Korea University College of Medicine Seoul South Korea
| | - Tae Hoon Ahn
- Department of Cardiology Heart and Brain Institute, Chung-Ang University Gwang-Myeong Hospital, Chung-Ang University College of Medicine Gwangmyeong-si South Korea
| | | | - Kiyuk Chang
- Division of Cardiology, Department of Internal Medicine College of Medicine, Catholic University of Korea Seoul South Korea
| | - Yongwhi Park
- Department of Internal Medicine Gyeongsang National University School of Medicine and Cardiovascular Center, Gyeongsang National University Changwon Hospital Changwon South Korea
| | - Young Bin Song
- Division of Cardiology, Department of Medicine, Samsung Medical Center Sungkyunkwan University School of Medicine Seoul South Korea
| | - Sung Gyun Ahn
- Department of Cardiology Yonsei University Wonju Severance Christian Hospital Wonju South Korea
| | - Jung-Won Suh
- Department of Cardiology, Department of Internal Medicine Seoul National University Bundang Hospital, Seoul National University College of Medicine Seoul South Korea
| | - Sang Yeub Lee
- Department of Cardiology Heart and Brain Institute, Chung-Ang University Gwang-Myeong Hospital, Chung-Ang University College of Medicine Gwangmyeong-si South Korea
| | - Jung Rae Cho
- Cardiology Division, Department of Internal Medicine, Kangnam Sacred Heart Hospital Hallym University College of Medicine Seoul South Korea
| | - Ae-Young Her
- Division of Cardiology, Department of Internal Medicine Kangwon National University School of Medicine Chuncheon South Korea
| | - Young-Hoon Jeong
- Department of Cardiology Heart and Brain Institute, Chung-Ang University Gwang-Myeong Hospital, Chung-Ang University College of Medicine Gwangmyeong-si South Korea
| | - Hyo-Soo Kim
- Cardiovascular Center, Department of Internal Medicine Seoul National University Hospital Seoul South Korea
| | - Moo Hyun Kim
- Department of Cardiology Dong-A University Hospital Busan South Korea
| | - Eun-Seok Shin
- Division of Cardiology Ulsan University Hospital, University of Ulsan College of Medicine Ulsan South Korea
| | - Do-Sun Lim
- Department of Cardiology, Cardiovascular Center Korea University Anam Hospital, Korea University College of Medicine Seoul South Korea
| |
Collapse
|
2
|
Chen HL, Wang QY, Qi RM, Cai JP. Identification of the changes in the platelet proteomic profile of elderly individuals. Front Cardiovasc Med 2024; 11:1384679. [PMID: 38807946 PMCID: PMC11130443 DOI: 10.3389/fcvm.2024.1384679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Accepted: 05/01/2024] [Indexed: 05/30/2024] Open
Abstract
Background Platelet hyperreactivity is a risk factor for thrombosis in elderly patients with cardiovascular diseases. However, the mechanism of platelet hyperactivation has not been elucidated. This study aims to investigate alterations in the proteomes of platelets and their correlation with platelet hyperreactivity among elderly individuals. Methods This study included 10 young (28.1 ± 1.9 years), 10 middle-aged (60.4 ± 2.2 years), and 10 old (74.2 ± 3.0 years) subjects. Washed platelets were used in the present study. Platelet samples were analysed by using data-independent acquisition (DIA) quantitative mass spectrometry (MS). Results The results showed that the platelet proteomic profile exhibited high similarity between the young and middle-aged groups. However, there were significant differences in protein expression profiles between the old group and the young group. By exploring the dynamic changes in the platelet proteome with ageing, clusters of proteins that changed significantly with ageing were selected for further investigation. These clusters were related to the initial triggering of complement, phagosome and haemostasis based on enrichment analysis. We found that platelet degranulation was the major characteristic of the differentially expressed proteins between the old and young populations. Moreover, complement activation, the calcium signalling pathway and the nuclear factor-κB (NF-κB) signalling pathway were enriched in differentially expressed proteins. Conclusions The present study showed that there are obvious differences in the protein profiles of the elderly compared with young and middle-aged populations. The results provide novel evidence showing changes in platelet hyperactivity and susceptibility to thrombosis in the elderly population.
Collapse
Affiliation(s)
- Hui-Lian Chen
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, China
- Graduate School of Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Qing-Yu Wang
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, China
| | - Ruo-Mei Qi
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, China
- Graduate School of Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Jian-Ping Cai
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, China
- Graduate School of Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| |
Collapse
|
3
|
Fandrei D, Huynh T, Sébert M, Aguinaga L, Bisio V, Kim R, Clappier E, Espéli M, Balabanian K, Moins-Teisserenc H, Toubert A, Dulphy N, Fenaux P, Adès L, Zhao LP. Lymphopenia confers poorer prognosis in Myelodysplastic Syndromes with very low and low IPSS-M. Blood Cancer J 2023; 13:193. [PMID: 38123548 PMCID: PMC10733334 DOI: 10.1038/s41408-023-00965-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 11/22/2023] [Accepted: 12/04/2023] [Indexed: 12/23/2023] Open
Affiliation(s)
- David Fandrei
- Université Paris Cité, Assistance Publique des Hôpitaux de Paris (APHP) Nord, Hôpital Saint-Louis, Hématologie Seniors, Paris, France
- Université Paris Cité, INSERM UMR 1160, Institut de Recherche Saint-Louis, Paris, France
| | - Tony Huynh
- Université Paris Cité, Assistance Publique des Hôpitaux de Paris (APHP) Nord, Hôpital Saint-Louis, Hématologie Seniors, Paris, France
| | - Marie Sébert
- Université Paris Cité, Assistance Publique des Hôpitaux de Paris (APHP) Nord, Hôpital Saint-Louis, Hématologie Seniors, Paris, France
- Université Paris Cité, INSERM UMR 944, Institut de Recherche Saint-Louis, Paris, France
| | - Lorea Aguinaga
- Université Paris Cité, Assistance Publique des Hôpitaux de Paris (APHP) Nord, Hôpital Saint-Louis, Hématologie Seniors, Paris, France
| | - Valeria Bisio
- Université Paris Cité, INSERM UMR 1160, Institut de Recherche Saint-Louis, Paris, France
| | - Rathana Kim
- Université Paris Cité, Assistance Publique des Hôpitaux de Paris (APHP) Nord, Hôpital Saint-Louis, Laboratoire d'Hématologie, Paris, France
| | - Emmanuelle Clappier
- Université Paris Cité, Assistance Publique des Hôpitaux de Paris (APHP) Nord, Hôpital Saint-Louis, Laboratoire d'Hématologie, Paris, France
| | - Marion Espéli
- Université Paris Cité, INSERM UMR 1160, Institut de Recherche Saint-Louis, Paris, France
| | - Karl Balabanian
- Université Paris Cité, INSERM UMR 1160, Institut de Recherche Saint-Louis, Paris, France
| | | | - Antoine Toubert
- Université Paris Cité, INSERM UMR 1160, Institut de Recherche Saint-Louis, Paris, France
- Université Paris Cité, Assistance Publique des Hôpitaux de Paris (APHP) Nord, Hôpital Saint-Louis, Laboratoire d'Immunologie et Histocompatibilité, Paris, France
| | - Nicolas Dulphy
- Université Paris Cité, INSERM UMR 1160, Institut de Recherche Saint-Louis, Paris, France
- Université Paris Cité, Assistance Publique des Hôpitaux de Paris (APHP) Nord, Hôpital Saint-Louis, Laboratoire d'Immunologie et Histocompatibilité, Paris, France
| | - Pierre Fenaux
- Université Paris Cité, Assistance Publique des Hôpitaux de Paris (APHP) Nord, Hôpital Saint-Louis, Hématologie Seniors, Paris, France
- Université Paris Cité, INSERM UMR 944, Institut de Recherche Saint-Louis, Paris, France
| | - Lionel Adès
- Université Paris Cité, Assistance Publique des Hôpitaux de Paris (APHP) Nord, Hôpital Saint-Louis, Hématologie Seniors, Paris, France
- Université Paris Cité, INSERM UMR 944, Institut de Recherche Saint-Louis, Paris, France
| | - Lin-Pierre Zhao
- Université Paris Cité, Assistance Publique des Hôpitaux de Paris (APHP) Nord, Hôpital Saint-Louis, Hématologie Seniors, Paris, France.
- Université Paris Cité, INSERM UMR 1160, Institut de Recherche Saint-Louis, Paris, France.
| |
Collapse
|
4
|
Valeriani E, Bartimoccia S, Pignatelli P, Pastori D. Aging and Antithrombotic Treatment. Antioxid Redox Signal 2023. [PMID: 37742116 DOI: 10.1089/ars.2023.0373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/25/2023]
Abstract
Significance: Several aging-related pathophysiological mechanisms have been described to contribute to increased thrombotic risk in the elderly, including oxidative stress, endothelial dysfunction, and platelet and coagulation cascade activation. Antithrombotic treatment in the elderly should be individualized. Recent Advances: Recent studies have clarified some pathophysiological mechanisms of enhanced oxidative stress and thrombotic alterations in older adults. In the last decade, randomized trials have evaluated different antithrombotic strategies to reduce the risk of cardiovascular events in these patients. Critical Issues: The proportion of elderly patients included in clinical trials is generally low, thus not reflecting the daily clinical practice. There is no consensus on the most appropriate antithrombotic treatment in the elderly, also considering that bleeding risk management may be challenging in this high-risk subgroup of patients. Routine antiplatelet treatment is not a valid strategy for the primary prevention of cardiovascular events given the associated high risk of bleeding. In elderly patients with acute coronary syndrome, low-dose prasugrel or clopidogrel, shorter dual antiplatelet therapy, and no pretreatment before stent placement should be considered. Advanced age should not be the only reason for the underuse of oral anticoagulation in patients with atrial fibrillation, with direct oral anticoagulants preferred over warfarin for stroke prevention. Instead, a case-by-case clinical evaluation is warranted based on patient's bleeding risk also. Future Directions: There is a need for a structured tailored approach to manage thrombotic risk in elderly patients. The choice of the most appropriate antithrombotic treatment should balance efficacy and safety to reduce the risk of bleeding.
Collapse
Affiliation(s)
- Emanuele Valeriani
- Department of General Surgery, Surgical Specialties and Organ Transplantation "Paride Stefanini", Sapienza University of Rome, Rome, Italy
- Infectious Disease Department, Umberto I Hospital of Rome, Rome, Italy
| | - Simona Bartimoccia
- Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy
| | - Pasquale Pignatelli
- Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy
| | - Daniele Pastori
- Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy
| |
Collapse
|
5
|
Ma L, Han Q, Sun F, Zhu K, Sun Q. Mean Platelet Volume/Platelet Count Ratio as a Predictor of Both Incidence and Prognosis of Acute Ischemic Stroke in Hemodialysis Patients. Int J Gen Med 2023; 16:3985-3994. [PMID: 37674583 PMCID: PMC10479580 DOI: 10.2147/ijgm.s416817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 08/15/2023] [Indexed: 09/08/2023] Open
Abstract
Purpose This study aimed to explore whether the mean platelet volume/platelet count ratio (MPR) has predictive value for the occurrence and prognosis of acute ischemic stroke (AIS) in hemodialysis patients. Patients and Methods A total of 402 patients undergoing maintenance hemodialysis were screened and 259 were enrolled in this study. The receiver operating characteristic curve and area under the curve (AUC) were used to evaluate the predictive power of the models. The patients enrolled in this study were divided into three groups based on the tertiles of the MPR value (Q1, Q2, and Q3). Kaplan-Meier curves were used to investigate the association between the MPR and AIS-free survival in hemodialysis patients. Chi-square analysis was performed to explore the association between the MPR and AIS outcomes in hemodialysis patients. And the AIS outcome was assessed using the modified Rankin Scale (mRS). Results MPR had a predictive value for the occurrence of AIS (AUC=0.814) in hemodialysis patients with a high sensitivity and specificity. AIS-free survival rates in the MPR Q1, MPR Q2, and MPR Q3 groups were 0.930, 0.701, and 0.360, respectively. The proportion of patients with good outcomes (mRS 0-2) was significantly greater among patients in the MPR Q1-Q2 group than in the MPR Q3 group (0.844 vs 0.745, p <0.001). Conclusion The MPR can be used as a good predictor of AIS in patients undergoing hemodialysis. Patients on hemodialysis with increased MPR levels had a higher incidence of AIS and poorer functional outcomes than those with low MPR levels.
Collapse
Affiliation(s)
- Lijie Ma
- Department of Nephrology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020, People’s Republic of China
| | - Qiuxia Han
- Department of Nephrology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020, People’s Republic of China
| | - Fang Sun
- Department of Nephrology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020, People’s Republic of China
| | - Kaiyi Zhu
- Department of Nephrology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020, People’s Republic of China
| | - Qianmei Sun
- Department of Nephrology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020, People’s Republic of China
| |
Collapse
|
6
|
Hadley JB, Kelher MR, D’Alessandro A, Gamboni F, Hansen K, Coleman J, Jones K, Cohen M, Moore EE, Banerjee A, Silliman CC. A pilot study of the metabolic profiles of apheresis platelets modified by donor age and sex and in vitro short-term incubation with sex hormones. Transfusion 2022; 62:2596-2608. [PMID: 36309927 PMCID: PMC9837799 DOI: 10.1111/trf.17165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 09/16/2022] [Accepted: 09/18/2022] [Indexed: 01/17/2023]
Abstract
BACKGROUND Platelets are part of innate immunity and comprise the cellular portion of hemostasis. Platelets express sex hormone receptors on their plasma membrane and sex hormones can alter their function in vitro. Little is known about how age and sex may affect platelet biology; thus, we hypothesized that platelets from males and females have different metabolomic profiles, which may be altered by age and in vitro treatment with sex hormones. METHODS Day 1 apheresis platelets were drawn from five 18-53-year-old, premenopausal younger females (YF), five ≥54-year-old, postmenopausal, older females (OF), five 18-44-year-old younger males (YM), and four ≥45-year-old older males (OM). Platelets were normalized to a standard concentration and metabolomics analyses were completed. Unsupervised statistical analyses and hierarchical clustering with principal component analyses were completed. RESULTS Platelets from OM had (1) elevated mono-, di- and tri-carboxylates, (2) increased levels of free fatty acids, acyl-carnitines, and free amino acids, and (3) increased purine breakdown and deamination products. In vitro incubation with sex hormones only affected platelets from OM donors with trends towards increased ATP and other high-energy purines and decreases in L-proline and other amino acids. CONCLUSION Platelets from OM's versus YF, OF, and YM have a different metabolome implying increased energy metabolism, more free fatty acids, acylcarnitines, and amino acids, and increased breakdown of purines and deamination products. However, only platelets from OM were affected by sex hormones in vitro. Platelets from OM are metabolically distinct, which may impart functional differences when transfused.
Collapse
Affiliation(s)
- Jamie B. Hadley
- The Department of Surgery, University of Colorado Denver, Aurora, Colorado, USA
| | - Marguerite R. Kelher
- The Department of Surgery, University of Colorado Denver, Aurora, Colorado, USA,Vitalant Research Institute, Denver, Colorado, USA
| | - Angelo D’Alessandro
- The Department of Biochemistry and Molecular Genetics, University of Colorado Denver, Aurora, Colorado, USA
| | - Fabia Gamboni
- The Department of Biochemistry and Molecular Genetics, University of Colorado Denver, Aurora, Colorado, USA
| | - Kirk Hansen
- The Department of Biochemistry and Molecular Genetics, University of Colorado Denver, Aurora, Colorado, USA
| | - Julia Coleman
- The Department of Surgery, University of Colorado Denver, Aurora, Colorado, USA
| | - Kenneth Jones
- Department of Biostatistics, University of Oklahoma School of Medicine, Oklahoma City, Oklahoma, USA
| | - Mitchell Cohen
- The Department of Surgery, University of Colorado Denver, Aurora, Colorado, USA
| | - Ernest E. Moore
- The Department of Surgery, University of Colorado Denver, Aurora, Colorado, USA
| | - Anirban Banerjee
- The Department of Surgery, University of Colorado Denver, Aurora, Colorado, USA
| | - Christopher C. Silliman
- The Department of Surgery, University of Colorado Denver, Aurora, Colorado, USA,Vitalant Research Institute, Denver, Colorado, USA,The Department of Pediatrics, School of Medicine, University of Colorado Denver, Aurora, Colorado, USA
| |
Collapse
|
7
|
Yang Q, Gao S, Lin J, Lyu K, Wu Z, Chen Y, Qiu Y, Zhao Y, Wang W, Lin T, Pan H, Chen M. A machine learning-based data mining in medical examination data: a biological features-based biological age prediction model. BMC Bioinformatics 2022; 23:411. [PMID: 36192681 PMCID: PMC9528174 DOI: 10.1186/s12859-022-04966-7] [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: 06/03/2022] [Accepted: 09/26/2022] [Indexed: 11/11/2022] Open
Abstract
Background Biological age (BA) has been recognized as a more accurate indicator of aging than chronological age (CA). However, the current limitations include: insufficient attention to the incompleteness of medical data for constructing BA; Lack of machine learning-based BA (ML-BA) on the Chinese population; Neglect of the influence of model overfitting degree on the stability of the association results. Methods and results Based on the medical examination data of the Chinese population (45–90 years), we first evaluated the most suitable missing interpolation method, then constructed 14 ML-BAs based on biomarkers, and finally explored the associations between ML-BAs and health statuses (healthy risk indicators and disease). We found that round-robin linear regression interpolation performed best, while AutoEncoder showed the highest interpolation stability. We further illustrated the potential overfitting problem in ML-BAs, which affected the stability of ML-Bas’ associations with health statuses. We then proposed a composite ML-BA based on the Stacking method with a simple meta-model (STK-BA), which overcame the overfitting problem, and associated more strongly with CA (r = 0.66, P < 0.001), healthy risk indicators, disease counts, and six types of disease. Conclusion We provided an improved aging measurement method for middle-aged and elderly groups in China, which can more stably capture aging characteristics other than CA, supporting the emerging application potential of machine learning in aging research. Supplementary Information The online version contains supplementary material available at 10.1186/s12859-022-04966-7.
Collapse
Affiliation(s)
- Qing Yang
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, 310051, China
| | - Sunan Gao
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, China
| | - Junfen Lin
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, 310051, China
| | - Ke Lyu
- College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Zexu Wu
- College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Yuhao Chen
- College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Yinwei Qiu
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, 310051, China
| | - Yanrong Zhao
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, 310051, China
| | - Wei Wang
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, 310051, China
| | - Tianxiang Lin
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, 310051, China
| | - Huiyun Pan
- The First Affiliated Hospital of School of Medicine, Zhejiang University, Hangzhou, 310058, China
| | - Ming Chen
- College of Life Sciences, Zhejiang University, Hangzhou, 310058, China. .,The First Affiliated Hospital of School of Medicine, Zhejiang University, Hangzhou, 310058, China.
| |
Collapse
|
8
|
Hadley JB, Kelher MR, Coleman JR, Kelly KK, Dumont LJ, Esparza O, Banerjee A, Cohen MJ, Jones K, Silliman CC. Hormones, age, and sex affect platelet responsiveness in vitro. Transfusion 2022; 62:1882-1893. [PMID: 35929193 PMCID: PMC9464702 DOI: 10.1111/trf.17054] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 06/24/2022] [Accepted: 06/24/2022] [Indexed: 01/02/2023]
Abstract
BACKGROUND Female sex confers a survival advantage following severe injury in the setting of trauma-induced coagulopathy, with female platelets having heightened responsiveness likely due to estrogen. The effects of testosterone on platelet biology are unknown, and platelets express both estradiol and androgen receptors on the plasma membrane. We hypothesize testosterone decreases platelet responses in vitro, and there are baseline differences in platelet function and metabolism stratified by sex/age. STUDY DESIGN AND METHODS Apheresis platelets were collected from: older males (OM) ≥45 years, younger males (YM) <45 years, older females (OF) ≥54 years, and younger females (YF) <54 years, and testosterone and estradiol were measured. Platelets were incubated with testosterone (5.31 ng/ml), estradiol (105 pg/ml) or vehicle and stimulated with buffer, adenosine diphosphate (20 μM), platelet activating factor (2 μM), or thrombin (0.3 U/ml). Aggregation, CD62P surface expression, fibrinogen receptor surface expression, and platelet mitochondrial metabolism were measured. RESULTS Testosterone significantly inhibited aggregation in OF and OM (p < .05), inhibited CD41a expression in YF, YM, and OM (p < .05), and affected a few of the baseline amounts of CD62P surface expression but not platelet activation to platelet-activating factor and adenosine diphosphate, and variably changed platelet metabolism. DISCUSSION Platelets have sex- and age-specific aggregation, receptor expression, and metabolism. Testosterone decreases platelet function dependent on the stimulus, age, and sex. Similarly, platelet metabolism has varying responses to sex hormones with baseline metabolic differences dependent upon sex and age.
Collapse
Affiliation(s)
- Jamie B Hadley
- The Department of Surgery, University of Colorado Denver, Aurora, Colorado, USA
| | - Marguerite R Kelher
- The Department of Pediatrics, University of Colorado Denver, Aurora, Colorado, USA
- Vitalant Research Institute, Denver, Colorado, USA
| | - Julia R Coleman
- The Department of Surgery, University of Colorado Denver, Aurora, Colorado, USA
| | | | - Larry J Dumont
- Vitalant Research Institute, Denver, Colorado, USA
- The Department of Pathology School of Medicine, University of Colorado Denver, Aurora, Colorado, USA
| | - Orlando Esparza
- The Department of Pediatrics, University of Colorado Denver, Aurora, Colorado, USA
- Vitalant Research Institute, Denver, Colorado, USA
| | - Anirban Banerjee
- The Department of Surgery, University of Colorado Denver, Aurora, Colorado, USA
| | - Mitchell J Cohen
- The Department of Surgery, University of Colorado Denver, Aurora, Colorado, USA
| | - Kenneth Jones
- Department of Biostatistics, University of Oklahoma School of Medicine, Oklahoma City, Oklahoma, USA
| | - Christopher C Silliman
- The Department of Surgery, University of Colorado Denver, Aurora, Colorado, USA
- The Department of Pediatrics, University of Colorado Denver, Aurora, Colorado, USA
- Vitalant Research Institute, Denver, Colorado, USA
| |
Collapse
|
9
|
Shaheen NA, Rehan H, Moghairi A, Gmati G, Damlaj M, Salama H, Rather M, Mendoza MA, Alanazi A, Al Ahmari B, Al Zahrani M, Al-Hejazi A, Alaskar AS. Hematological indices in the adult saudi population: Reference intervals by gender, age, and region. Front Med (Lausanne) 2022; 9:901937. [PMID: 35966855 PMCID: PMC9366111 DOI: 10.3389/fmed.2022.901937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 06/24/2022] [Indexed: 11/13/2022] Open
Abstract
Introduction Hematological parameters are critical in disease diagnosis, management, and monitoring; however, complete blood count (CBC) reference intervals vary across populations. The aim of the current study was to provide the reference ranges of hematological parameters/indices in the healthy adult Saudi population. Methods A multicenter retrospective cross-sectional study was conducted with a sample of employees who were screened pre-employment from January 2015 to December 2019, at tertiary care hospitals in three regions. Demographic and CBC data were extracted from the electronic health system. The 2.5th and 97.5th percentiles were used to determine the reference intervals. Results Of a total of 1,388 participants, 53.82% were male. The majority 96% was less than 40 years old, and 85% were from the Central region. Gender-related differences were observed for the RBC count, Hb, HCT, MCV, MCH, MCHC, and the platelet count. Age-related differences were observed for the RBC, Hb, HCT, and eosinophils. The WBC parameters did not differ by gender or age categories. Region-related differences were observed for the RBC, hemoglobin, HCT, MCV, WBC, and basophils. The platelet count was higher in the female group, the age group 40 years and above, and in the Western region. The prevalence of anemia was high in the female group and the Eastern region. The overall neutropenia rate was 12.8%. Conclusion The data from this study provide hematological parameter reference ranges for the adult Saudi population by gender, age, and region. Gender and age-related differences were observed for the hematological parameters. Anemia was more frequent in the female group and the Eastern region. Caution must be taken when comparing or interpreting results from different age groups, gender, region of origin, and ethnicity.
Collapse
Affiliation(s)
- Naila A. Shaheen
- King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
- Ministry of the National Guard–Health Affairs, Riyadh, Saudi Arabia
- Department of Biostatistics and Bioinformatics, King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
| | - Hina Rehan
- King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
- Ministry of the National Guard–Health Affairs, Riyadh, Saudi Arabia
- Divisions of Adult Hematology and SCT, King Abdulaziz Medical City, Riyadh, Saudi Arabia
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
| | - Areej Moghairi
- King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
- Ministry of the National Guard–Health Affairs, Riyadh, Saudi Arabia
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
- Department of Pathology and Laboratory Medicine, King Abdulaziz Medical City, Ministry of the National Guard–Health Affairs, Riyadh, Saudi Arabia
| | - Giamal Gmati
- King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
- Ministry of the National Guard–Health Affairs, Riyadh, Saudi Arabia
- Divisions of Adult Hematology and SCT, King Abdulaziz Medical City, Riyadh, Saudi Arabia
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
- Saudi Society of Blood and Marrow Transplant, Riyadh, Saudi Arabia
| | - Moussab Damlaj
- King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
- Ministry of the National Guard–Health Affairs, Riyadh, Saudi Arabia
- Divisions of Adult Hematology and SCT, King Abdulaziz Medical City, Riyadh, Saudi Arabia
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
- Saudi Society of Blood and Marrow Transplant, Riyadh, Saudi Arabia
| | - Hind Salama
- King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
- Ministry of the National Guard–Health Affairs, Riyadh, Saudi Arabia
- Divisions of Adult Hematology and SCT, King Abdulaziz Medical City, Riyadh, Saudi Arabia
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
- Saudi Society of Blood and Marrow Transplant, Riyadh, Saudi Arabia
| | - Mushtaq Rather
- King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
- Ministry of the National Guard–Health Affairs, Riyadh, Saudi Arabia
- Divisions of Adult Hematology and SCT, King Abdulaziz Medical City, Riyadh, Saudi Arabia
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
| | - May Anne Mendoza
- King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
- Ministry of the National Guard–Health Affairs, Riyadh, Saudi Arabia
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
| | - Abeer Alanazi
- King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
- Ministry of the National Guard–Health Affairs, Riyadh, Saudi Arabia
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
| | - Bader Al Ahmari
- King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
- Ministry of the National Guard–Health Affairs, Riyadh, Saudi Arabia
- Divisions of Adult Hematology and SCT, King Abdulaziz Medical City, Riyadh, Saudi Arabia
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
- Saudi Society of Blood and Marrow Transplant, Riyadh, Saudi Arabia
| | - Mohsen Al Zahrani
- King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
- Ministry of the National Guard–Health Affairs, Riyadh, Saudi Arabia
- Divisions of Adult Hematology and SCT, King Abdulaziz Medical City, Riyadh, Saudi Arabia
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
- Saudi Society of Blood and Marrow Transplant, Riyadh, Saudi Arabia
| | - Ayman Al-Hejazi
- King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
- Ministry of the National Guard–Health Affairs, Riyadh, Saudi Arabia
- Divisions of Adult Hematology and SCT, King Abdulaziz Medical City, Riyadh, Saudi Arabia
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
- Saudi Society of Blood and Marrow Transplant, Riyadh, Saudi Arabia
| | - Ahmed S. Alaskar
- King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
- Ministry of the National Guard–Health Affairs, Riyadh, Saudi Arabia
- Divisions of Adult Hematology and SCT, King Abdulaziz Medical City, Riyadh, Saudi Arabia
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
- Saudi Society of Blood and Marrow Transplant, Riyadh, Saudi Arabia
- *Correspondence: Ahmed S. Alaskar ; orcid.org/0000-0002-0648-3256
| |
Collapse
|
10
|
Schyrr F, Marques‐Vidal P, Hans D, Lamy O, Naveiras O. Differential blood counts do not consistently predict clinical measurements of bone mineral density and microarchitecture at homeostasis. JBMR Plus 2022; 6:e10669. [PMID: 36111204 PMCID: PMC9464992 DOI: 10.1002/jbm4.10669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 07/09/2022] [Accepted: 07/22/2022] [Indexed: 11/29/2022] Open
Abstract
The hematopoietic stem cell niche constitutes a complex bone marrow (BM) microenvironment. Osteoporosis is characterized by both reduced bone mineral density (BMD) and microarchitectural deterioration, constituting the most frequent alteration of the BM microenvironment. It is unclear to which extent modifications of the BM microenvironment, including in the context of osteoporosis, influence blood cell production. We aimed to describe the association between lumbar spine and total hip BMD and microarchitecture (assessed by trabecular bone score [TBS]) and differential blood counts. Data were collected at two time points from 803 (first assessment) and 901 (second assessment) postmenopausal women participating in the CoLaus/OsteoLaus cohort, a population‐based sample in Lausanne, Switzerland. Participants with other active disease or treatment that could influence hematopoiesis or osteoporosis were excluded. Bivariate and multivariate associations between each peripheral blood cell count and BMD or TBS were performed. Additionally, participants in the highest BMD and TBS tertiles were compared with participants in the lowest BMD and TBS tertiles. At first assessment, only neutrophils were significantly different in the lowest BMD and TBS tertile (3.18 ± 0.09 versus 3.47 ± 0.08 G/L, p = 0.028). At the second assessment, leucocytes (5.90 ± 0.11 versus 5.56 ± 0.10 G/L, p = 0.033), lymphocytes (1.87 ± 0.04 versus 1.72 ± 0.04 G/L p = 0.033), and monocytes (0.49 ± 0.01 versus 0.46 ± 0.1 G/L, p = 0.033) were significantly different. Power analysis did not identify quasi‐significant associations missed due to sample size. Although significant associations between blood counts and BMD or TBS were found, none was consistent across bone measurements or assessments. This study suggests that, at homeostasis and in postmenopausal women, there is no clinically significant association between the osteoporotic microenvironment and blood production output as measured by differential blood counts. In the context of conflicting reports on the relationship between osteoporosis and hematopoiesis, our study represents the first prospective two time‐point analysis of a large, homogenous cohort at steady state. © 2022 The Authors. JBMR Plus published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research.
Collapse
Affiliation(s)
- Frederica Schyrr
- Laboratory of Regenerative HematopoiesisSwiss Institute for Experimental Cancer Research (ISREC) & Institute of Bioengineering, École Polytechnique Fédérale de Lausanne (EPFL)LausanneSwitzerland
- Department of Biomedical SciencesUniversity of LausanneLausanneSwitzerland
| | | | - Didier Hans
- Centre of Bone Diseases, Bone and Joint DepartmentLausanne University HospitalLausanneSwitzerland
| | - Olivier Lamy
- Centre of Bone Diseases, Bone and Joint DepartmentLausanne University HospitalLausanneSwitzerland
| | - Olaia Naveiras
- Laboratory of Regenerative HematopoiesisSwiss Institute for Experimental Cancer Research (ISREC) & Institute of Bioengineering, École Polytechnique Fédérale de Lausanne (EPFL)LausanneSwitzerland
- Department of Biomedical SciencesUniversity of LausanneLausanneSwitzerland
- Hematology Service, Department of OncologyLausanne University Hospital (CHUV) and University of Lausanne (UNIL)LausanneSwitzerland
| |
Collapse
|
11
|
Advantages and Challenges of Differential Immune Cell Count Determination in Blood and Milk for Monitoring the Health and Well-Being of Dairy Cows. Vet Sci 2022; 9:vetsci9060255. [PMID: 35737307 PMCID: PMC9229168 DOI: 10.3390/vetsci9060255] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 05/07/2022] [Accepted: 05/24/2022] [Indexed: 02/05/2023] Open
Abstract
A key challenge of the 21st century will be to provide the growing world population with a sustainable and secure supply of food. Consequently, the dairy farming’s primary task is to lower milk losses and other inefficiencies associated with diseased cows. Moreover, a shift from curative to preventive health management would be desirable for mastitis and a wide variety of other infectious and non-infectious cattle diseases, some of which are known to have profound negative effects on the performance and well-being of cows. Differential cell counting (DCC), a procedure that aims to determine the proportions of different somatic cell types in raw milk samples, has not only the potential to optimize mastitis diagnostics, but it could furthermore serve as a diagnostic tool for monitoring the general and overall health status of dairy cows. Based on a broad search of the literature, the practical utility of various types of DCC is summarized and discussed in this review. Since it might be of advantage to interpret DCC with the aid of data from studies in humans, differences between the immune systems of humans and dairy cattle, with a special focus on surface marker expression profiles and γδ (gamma delta) T-cell characteristics, are also described.
Collapse
|
12
|
Bakr S, AlFattani A, Al-Nounou R, Bakshi N, Khogeer H, Alharbi M, Almousa N, Alomaim W, Aguilos A, Almashary M, Owaidah T. Hematologic reference intervals for healthy adult Saudis in Riyadh. Ann Saudi Med 2022; 42:191-203. [PMID: 35658586 PMCID: PMC9167458 DOI: 10.5144/0256-4947.2022.191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Laboratory hematological tests are widely used in clinical practice to assess health and disease conditions. Reference ranges provided by laboratory reports are considered the most authoritative medical tools to assist in the decision-making phase. International standards institutes recommend that reference ranges be established for each region. OBJECTIVES Provide reference values of routine hematological parameters in Saudi adults according to age and gender. DESIGN Cross-sectional SETTING: Central province of Saudi Arabia. PATIENTS AND METHODS Apparently healthy Saudi adults were subjected to laboratory testing of routine hematological parameters (full blood count, hemostatic profile, and serum hematinics), after completing a detailed health medical questionnaire. MAIN OUTCOME MEASURES Hematological reference values based on the local population. SAMPLE SIZE AND CHARACTERISTICS 637 after screening 827 potentially healthy Saudi adults with ages ranging from 15 to 65 years. RESULTS The reference values of routine hematological parameters for the full population and by gender are presented with 90% CI as the lower and upper limits. Reference ranges mostly differed from universal established ranges shown in textbooks. CONCLUSION The reference ranges of routine hematologic parameters for accurate assessment and appropriate management will help improve the routine clinical care of the adult Saudi population. LIMITATIONS Difficulty in assessing health status of participants, who could have subclinical illnesses not reflected in the evaluated blood measurement. Lack of ability to eliminate individuals who might be carriers for haemoglobinopathies. Studies with larger sample sizes from different areas of the country are required to achieve a more accurate representation of the whole Saudi population. CONFLICT OF INTEREST None.
Collapse
Affiliation(s)
- Salwa Bakr
- From the Department of Clinical Pathology, Faculty of Medicine, Fayoum University, Fayoum, Egypt.,From the College of Medicine, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Areej AlFattani
- From the Biostatistics, Epidemiology, and Scientific Computing, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Randa Al-Nounou
- From the Department of Pathology, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Nasir Bakshi
- From the Department of Pathology, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Haitham Khogeer
- From the Department of Pathology, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Maha Alharbi
- From the Department of Pathology, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Nasser Almousa
- From the Department of Pathology, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Waleed Alomaim
- From the Department of Pathology, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Amelita Aguilos
- From the Department of Pathology, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - May Almashary
- From the College of Medicine, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Tarek Owaidah
- From the Department of Pathology, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia.,From the Alfaisal University, Riyadh, Saudi Arabia
| |
Collapse
|
13
|
Benson VS, Hartl S, Barnes N, Galwey N, Van Dyke MK, Kwon N. Blood eosinophil counts in the general population and airways disease: a comprehensive review and meta-analysis. Eur Respir J 2022; 59:2004590. [PMID: 34172466 PMCID: PMC8756293 DOI: 10.1183/13993003.04590-2020] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 05/26/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND The clinical context for using blood eosinophil (EOS) counts as treatment-response biomarkers in asthma and COPD requires better understanding of EOS distributions and ranges. We describe EOS distributions and ranges published in asthma, COPD, control (non-asthma/COPD) and general populations. METHODS We conducted a comprehensive literature review and meta-analysis of observational studies (January 2008 to November 2018) that included EOS counts in asthma, severe asthma, COPD, control and general populations. Excluded studies had total sample sizes <200, EOS as inclusion criterion, hospitalised population only and exclusively paediatric participants. RESULTS Overall, 91 eligible studies were identified, most had total-population-level data available: asthma (39 studies), severe asthma (12 studies), COPD (23 studies), control (seven studies) and general populations (14 studies); some articles reported data for multiple populations. Reported EOS distributions were right-skewed (seven studies). Reported median EOS counts ranged from 157-280 cells·µL-1 (asthma, 22 studies); 200-400 cells·µL-1 (severe asthma, eight studies); 150-183 cells·µL-1 (COPD, six studies); and 100-160 cells·µL-1 (controls, three studies); and 100-200 cells·µL-1 (general populations, six studies). The meta-analysis showed that observed variability was mostly between studies rather than within studies. Factors reportedly associated with higher blood EOS counts included current smoking, positive skin-prick test, elevated total IgE, comorbid allergic rhinitis, age ≤18 years, male sex, spirometric asthma/COPD diagnosis, metabolic syndrome and adiposity. CONCLUSION EOS distribution and range varied by study population, and were affected by clinical factors including age, smoking history and comorbidities, which, regardless of severity, should be considered during treatment decision-making.
Collapse
Affiliation(s)
- Victoria S Benson
- Epidemiology, Value Evidence and Outcomes (VEO), Global Medical R&D, GlaxoSmithKline, Brentford, UK
| | - Sylvia Hartl
- Dept of Respiratory and Critical Care Medicine and Ludwig Boltzmann Institute for Lung Health, Clinic Penzing, WiGev and Sigmund Freud University, Medical School, Vienna, Austria
| | - Neil Barnes
- Respiratory Therapy Area, GlaxoSmithKline, Brentford, UK
- William Harvey Institute, Barts and The London School of Medicine and Dentistry, London, UK
| | | | - Melissa K Van Dyke
- Epidemiology, Value Evidence and Outcomes (VEO), Global Medical R&D, GlaxoSmithKline, Upper Providence, PA, USA
| | - Namhee Kwon
- Respiratory Research and Development, GlaxoSmithKline, Brentford, UK
| |
Collapse
|
14
|
Callan T, Debattista J, Berry B, Brown J, Woodcock S, Hocking JS, Huston WM. A retrospective cohort study examining STI testing and perinatal records demonstrates reproductive health burden of chlamydia and gonorrhea. Pathog Dis 2021; 78:5903269. [PMID: 32901793 DOI: 10.1093/femspd/ftaa052] [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: 06/02/2020] [Accepted: 09/06/2020] [Indexed: 01/20/2023] Open
Abstract
Adverse reproductive health outcomes, such as pelvic inflammatory disease, ectopic pregnancy and tubal factor infertility, have been associated with Chlamydia trachomatis and Neisseria gonorrhoea infections. These reproductive health outcomes could be complemented by measuring subsequent pregnancies to assess impact on fertility. The study design was a cohort study of women in Queensland (QLD), Australia, using data linkage methods to link chlamydia and/or gonorrhea testing records (including an unexposed group undergoing full blood count tests; 2000 and 2005) with the QLD Perinatal Registry (2000-2013). The cohort included 132 962 women, with 69 533 records of pregnancies. Women in the exposed group, with no prior pregnancy, had a reduced odds of a pregnancy during the follow up of the study (20-year-old (at 2005) aOR 0.91 95% CI 0.87-0.95, and 25-year-old aOR 0.71 95% CI 0.68-0.75). Women in the exposed group with a prior pregnancy had increased odds of pregnancy during the follow up of the study (20-year-old (at 2005) aOR 1.72 95% CI 1.59-1.86, and 25-year-old aOR 1.35 95% CI 1.26-1.45). Our data provides further evidence at a population level of the significant impact on reproductive outcomes associated with chlamydia and gonorrhea.
Collapse
Affiliation(s)
- Torrington Callan
- Faculty of Science, School of Mathematical and Physical Sciences, University of Technology Sydney, 15 Broadway, Ultimo, NSW 2007, Australia
| | - Joseph Debattista
- Metro North Public Health Unit, Queensland Health, Bryden Street, Windsor, 4030, Australia
| | - Brooke Berry
- Pathology Queensland, Health Support Queensland, Queensland Health, Herston Road, Herston, 4006, Australia
| | - James Brown
- Faculty of Science, School of Mathematical and Physical Sciences, University of Technology Sydney, 15 Broadway, Ultimo, NSW 2007, Australia
| | - Stephen Woodcock
- Faculty of Science, School of Mathematical and Physical Sciences, University of Technology Sydney, 15 Broadway, Ultimo, NSW 2007, Australia
| | - Jane S Hocking
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Level 3, 207 Bouverie St, Carlton, Victoria 3053, Australia
| | - Wilhelmina M Huston
- Faculty of Science, School of Life Sciences, University of Technology Sydney, Broadway, NSW 2007, Australia
| |
Collapse
|
15
|
Abstract
The term "benign ethnic neutropenia" describes the phenotype of having an absolute neutrophil count (ANC) <1500 cells/μL with no increased risk of infection. It is most commonly seen in those of African ancestry. In addition, ANC reference ranges from countries in Africa emphasize that ANC levels <1500 cells/μL are common and harmless. The lower ANC levels are driven by the Duffy null [Fy(a-b-)] phenotype, which is protective against malaria and seen in 80% to 100% of those of sub-Saharan African ancestry and <1% of those of European descent. Benign ethnic neutropenia is clinically insignificant, but the average ANC values differ from what are typically seen in those of European descent. Thus, the predominantly White American medical system has described this as a condition. This labeling implicitly indicates that common phenotypes in non-White populations are abnormal or wrong. We believe that it is important to examine and rectify practices in hematology that contribute to systemic racism.
Collapse
|
16
|
Abstract
PURPOSE OF REVIEW Advances in medical care and preventive measures have contributed to increasing life expectancy. Therefore, it is critical to expand our understanding of the physiological and pathophysiological adaptations of the hematological system in aging. We highlight and review the findings from recent investigations aimed at understanding the effects of aging on megakaryocytes and platelets. RECENT FINDINGS Biochemical and transcriptomic studies of megakaryocytes and platelets from older humans and mice have advanced our understanding of the molecular and functional characteristics of megakaryocytes and platelets during aging. These studies have led to the identification of metabolic and inflammatory pathways associated with the generation of hyperreactive platelets that may significantly contribute to the high incidence of thrombosis in aging. SUMMARY By increasing our research efforts to understand and identify the characteristics of megakaryocytes and platelets in aging, we will increase our potential to develop novel therapies aimed at decreasing the incidence of aging-associated thrombosis. These efforts will also serve as a foundation to better understand the role of megakaryocytes and platelets in other age-related hematological conditions with high thrombotic risk such as clonal hematopoiesis of indeterminate potential and myeloproliferative neoplasms.
Collapse
|
17
|
The Clot Thickens: Recent Clues on Hematopoietic Stem Cell Contribution to Age-Related Platelet Biology Open New Questions. ADVANCES IN GERIATRIC MEDICINE AND RESEARCH 2021; 3. [PMID: 35037001 PMCID: PMC8759758 DOI: 10.20900/agmr20210019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Platelets provide life-saving functions by halting external and internal bleeding. There is also a dark side to platelet biology, however. Recent reports provide evidence for increased platelet reactivity during aging of mice and humans, making platelets main suspects in the most prevalent aging-related human pathologies, including cardiovascular diseases, stroke, and cancer. What drives this platelet hyperreactivity during aging? Here, we discuss how hematopoietic stem cell differentiation pathways into the platelet lineage offer avenues to understand the fundamental differences between young and old platelets. Recent advances begin to unravel how the cellular and molecular regulation of the parent hematopoietic stem and progenitor cells likely imbue aging characteristics on the resulting Plt progeny. The resulting mechanistic insights into intrinsic platelet reactivity will provide strategies for selectively targeting age-related pathways. This brief viewpoint focuses on current concepts on aging hematopoiesis and the implications for platelet hyperactivity during aging.
Collapse
|
18
|
Blot M, Bour JB, Quenot JP, Bourredjem A, Nguyen M, Guy J, Monier S, Georges M, Large A, Dargent A, Guilhem A, Mouries-Martin S, Barben J, Bouhemad B, Charles PE, Chavanet P, Binquet C, Piroth L. The dysregulated innate immune response in severe COVID-19 pneumonia that could drive poorer outcome. J Transl Med 2020; 18:457. [PMID: 33272291 PMCID: PMC7711269 DOI: 10.1186/s12967-020-02646-9] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 11/27/2020] [Indexed: 02/01/2023] Open
Abstract
Background Although immune modulation is a promising therapeutic avenue in coronavirus disease 2019 (COVID-19), the most relevant targets remain to be found. COVID-19 has peculiar characteristics and outcomes, suggesting a unique immunopathogenesis. Methods Thirty-six immunocompetent non-COVID-19 and 27 COVID-19 patients with severe pneumonia were prospectively enrolled in a single center, most requiring intensive care. Clinical and biological characteristics (including T cell phenotype and function and plasma concentrations of 30 cytokines) and outcomes were compared. Results At similar baseline respiratory severity, COVID-19 patients required mechanical ventilation for significantly longer than non-COVID-19 patients (15 [7–22] vs. 4 (0–15) days; p = 0.0049). COVID-19 patients had lower levels of most classical inflammatory cytokines (G-CSF, CCL20, IL-1β, IL-2, IL-6, IL-8, IL-15, TNF-α, TGF-β), but higher plasma concentrations of CXCL10, GM-CSF and CCL5, compared to non-COVID-19 patients. COVID-19 patients displayed similar T-cell exhaustion to non-COVID-19 patients, but with a more unbalanced inflammatory/anti-inflammatory cytokine response (IL-6/IL-10 and TNF-α/IL-10 ratios). Principal component analysis identified two main patterns, with a clear distinction between non-COVID-19 and COVID-19 patients. Multivariate regression analysis confirmed that GM-CSF, CXCL10 and IL-10 levels were independently associated with the duration of mechanical ventilation. Conclusion We identified a unique cytokine response, with higher plasma GM-CSF and CXCL10 in COVID-19 patients that were independently associated with the longer duration of mechanical ventilation. These cytokines could represent the dysregulated immune response in severe COVID-19, as well as promising therapeutic targets. ClinicalTrials.gov: NCT03505281.
Collapse
Affiliation(s)
- Mathieu Blot
- Infectious Diseases Department, Dijon Bourgogne University Hospital , 14 rue Paul Gaffarel, 21079, Dijon, France. .,Lipness team, INSERM Research Center LNC-UMR1231 and LabEx LipSTIC, University of Burgundy, Dijon, France.
| | - Jean-Baptiste Bour
- Laboratory of virology, Dijon Bourgogne University Hospital, Dijon, France
| | - Jean Pierre Quenot
- Lipness team, INSERM Research Center LNC-UMR1231 and LabEx LipSTIC, University of Burgundy, Dijon, France.,Department of Intensive Care, Dijon Bourgogne University Hospital, Dijon, France.,Clinical Epidemiology unit, INSERM, Dijon, CIC1432, France.,Clinical Investigation Center, Clinical Epidemiology/Clinical trials unit, Dijon Bourgogne University Hospital, Dijon, France
| | - Abderrahmane Bourredjem
- Clinical Epidemiology unit, INSERM, Dijon, CIC1432, France.,Clinical Investigation Center, Clinical Epidemiology/Clinical trials unit, Dijon Bourgogne University Hospital, Dijon, France
| | - Maxime Nguyen
- Lipness team, INSERM Research Center LNC-UMR1231 and LabEx LipSTIC, University of Burgundy, Dijon, France.,Anesthesiology and Critical Care Department, Dijon Bourgogne University Hospital, Dijon, France
| | - Julien Guy
- Hematobiology, Dijon Bourgogne University Hospital, Dijon, France
| | - Serge Monier
- Lipness team, INSERM Research Center LNC-UMR1231 and LabEx LipSTIC, University of Burgundy, Dijon, France.,Cytometry core facility, University of Burgundy Franche-Comté, Dijon, France
| | - Marjolaine Georges
- Department of Pneumology, Dijon Bourgogne University Hospital, Dijon, France
| | - Audrey Large
- Department of Intensive Care, Dijon Bourgogne University Hospital, Dijon, France
| | - Auguste Dargent
- Lipness team, INSERM Research Center LNC-UMR1231 and LabEx LipSTIC, University of Burgundy, Dijon, France.,Department of Intensive Care, Dijon Bourgogne University Hospital, Dijon, France
| | - Alexandre Guilhem
- Department of Internal Medicine and Clinical Immunology, Dijon Bourgogne University Hospital, Dijon, France
| | - Suzanne Mouries-Martin
- Department of Internal Medicine and Systemic Diseases, Dijon Bourgogne University Hospital, Dijon, France
| | - Jeremy Barben
- Geriatrics Internal Medicine Department, Dijon Bourgogne University Hospital, Dijon, France
| | - Belaid Bouhemad
- Lipness team, INSERM Research Center LNC-UMR1231 and LabEx LipSTIC, University of Burgundy, Dijon, France.,Anesthesiology and Critical Care Department, Dijon Bourgogne University Hospital, Dijon, France
| | - Pierre-Emmanuel Charles
- Lipness team, INSERM Research Center LNC-UMR1231 and LabEx LipSTIC, University of Burgundy, Dijon, France.,Department of Intensive Care, Dijon Bourgogne University Hospital, Dijon, France
| | - Pascal Chavanet
- Infectious Diseases Department, Dijon Bourgogne University Hospital , 14 rue Paul Gaffarel, 21079, Dijon, France.,Clinical Epidemiology unit, INSERM, Dijon, CIC1432, France.,Clinical Investigation Center, Clinical Epidemiology/Clinical trials unit, Dijon Bourgogne University Hospital, Dijon, France
| | - Christine Binquet
- Lipness team, INSERM Research Center LNC-UMR1231 and LabEx LipSTIC, University of Burgundy, Dijon, France.,Clinical Epidemiology unit, INSERM, Dijon, CIC1432, France.,Clinical Investigation Center, Clinical Epidemiology/Clinical trials unit, Dijon Bourgogne University Hospital, Dijon, France
| | - Lionel Piroth
- Infectious Diseases Department, Dijon Bourgogne University Hospital , 14 rue Paul Gaffarel, 21079, Dijon, France.,Clinical Epidemiology unit, INSERM, Dijon, CIC1432, France.,Clinical Investigation Center, Clinical Epidemiology/Clinical trials unit, Dijon Bourgogne University Hospital, Dijon, France
| | | |
Collapse
|
19
|
Abdullah DA, Mahmood GA, Rahman HS. Hematology Reference Intervals for Healthy Adults of the City of Sulaymaniyah, Iraq. Int J Gen Med 2020; 13:1249-1254. [PMID: 33269000 PMCID: PMC7701137 DOI: 10.2147/ijgm.s270800] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 08/14/2020] [Indexed: 11/26/2022] Open
Abstract
Background Hematology laboratory analyses are essential in the diagnosis of and making decisions on clinical cases. Hematology results are only meaningful when reference made to a normal range of values for a particular population. These values are affected by race, diet, and lifestyle the society. Objective To establish the hematological reference values for adult residents of the city of Sulaymaniyah, Iraq. Methods Blood samples collected from 1133 healthy males and female volunteers were analyzed for complete blood count, serum iron, and vitamin B12 concentrations. After applying the exclusion criteria, the hematology results from 762 individuals comprising 313 males and 449 males were included in the study. Results The mean red blood cell count, hemoglobin concentration, hematocrit, and serum iron concentration were higher in males than females while the neutrophil and platelet counts and plateletcrit were higher in females than males. Conclusion This study for the first time recorded hematological reference intervals for residents of the city of Sulaymaniyah.
Collapse
Affiliation(s)
- Dana Ahmed Abdullah
- Department of Pathology, College of Medicine, University of Sulaimani, Sulaymaniyah 46001, Republic of Iraq
| | | | - Heshu Sulaiman Rahman
- Department of Physiology, College of Medicine, University of Sulaimani, Sulaymaniyah 46001, Republic of Iraq.,Department of Medical Laboratory Sciences, College of Health Sciences, Komar University of Science and Technology, Sarchinar District, Sulaymaniyah 46001, Republic of Iraq
| |
Collapse
|
20
|
Hermann W, Risch L, Grebhardt C, Nydegger UE, Sakem B, Imperiali M, Renz H, Risch M. Reference Intervals for Platelet Counts in the Elderly: Results from the Prospective SENIORLAB Study. J Clin Med 2020; 9:jcm9092856. [PMID: 32899382 PMCID: PMC7564319 DOI: 10.3390/jcm9092856] [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: 08/19/2020] [Revised: 08/27/2020] [Accepted: 09/01/2020] [Indexed: 01/08/2023] Open
Abstract
Currently, age- and sex-independent reference limits (RLs) are frequently used to interpret platelet counts in seniors. We aimed to define and validate reference intervals (RIs) for platelet counts within the framework of the prospective SENIORLAB study. Subjectively healthy Swiss individuals aged 60 years and older were prospectively included and followed for morbidity and mortality. Participants who had circumstances known to affect platelet counts were excluded. The obtained RIs were validated with indirect statistical methods. Frequencies of abnormal platelet counts in a population-based setting, including 41.5% of the entire age-specific population of the Principality of Liechtenstein, were compared by using age- and sex-independent RIs and the RLs obtained in the present study. For males (n = 542), 95% RIs for platelet counts were defined as follows: 150–300 × 109/L (60–69 years); 130–300 × 109/L (70–79 years); and 120–300 × 109/L (80 years and above). For females (n = 661), the consolidated age-independent 95% RI was 165–355 × 109/L. These RI values were validated by indirect RI determination of 51,687 (30,392 female/21,295 male) patients of the same age. Age- and sex-independent RIs exhibited imbalanced frequencies of abnormal platelet counts between the two sexes, which were corrected by introducing age- and sex-specific RLs. In conclusion, females have higher platelet counts than males. Whereas the upper RL for males remains constant, the lower RL decreases with age. We propose to abandon the practice of employing sex- and age-independent RL for platelet counts in the elderly.
Collapse
Affiliation(s)
- Wolfgang Hermann
- Faculty of medical sciences, Private Universität im Fürstentum Liechtenstein, Dorfstrasse 24, 9495 Triesen, Liechtenstein; (W.H.); (L.R.)
| | - Lorenz Risch
- Faculty of medical sciences, Private Universität im Fürstentum Liechtenstein, Dorfstrasse 24, 9495 Triesen, Liechtenstein; (W.H.); (L.R.)
- Labormedizinisches Zentrum Dr. Risch, Wuhrstrasse 14, 9490 Vaduz, Liechtenstein
- Center of Laboratory Medicine, University Institute of Clinical Chemistry, University of Bern, 3012 Bern, Switzerland
| | - Chris Grebhardt
- Faculty of Medicine, University of Basel, Klingelbergstrasse 61, 4056 Basel, Switzerland;
| | - Urs E. Nydegger
- Labormedizinisches zentrum Dr. Risch, Waldeggstrasse 37, 3097 Liebefeld, Switzerland; (U.E.N.); (B.S.)
| | - Benjamin Sakem
- Labormedizinisches zentrum Dr. Risch, Waldeggstrasse 37, 3097 Liebefeld, Switzerland; (U.E.N.); (B.S.)
| | - Mauro Imperiali
- Centro Medicina di Laboratorio Dr. Risch, Via Arbostra 2, 6963 Pregassona, Switzerland;
| | - Harald Renz
- Institute of Laboratory Medicine and Pathobiochemistry, Molecular Diagnostics, Philipps University Marburg, University Hospital Giessen and Marburg, Baldingerstraße, 35043 Marburg, Germany;
| | - Martin Risch
- Zentrallabor, Kantonsspital Graubünden, Loësstrasse 170, 7000 Chur, Switzerland
- Correspondence:
| |
Collapse
|
21
|
Banerjee A, Ray S, Vorselaars B, Kitson J, Mamalakis M, Weeks S, Baker M, Mackenzie LS. Use of Machine Learning and Artificial Intelligence to predict SARS-CoV-2 infection from Full Blood Counts in a population. Int Immunopharmacol 2020; 86:106705. [PMID: 32652499 PMCID: PMC7296324 DOI: 10.1016/j.intimp.2020.106705] [Citation(s) in RCA: 82] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 06/11/2020] [Indexed: 01/22/2023]
Abstract
Since December 2019 the novel coronavirus SARS-CoV-2 has been identified as the cause of the pandemic COVID-19. Early symptoms overlap with other common conditions such as common cold and Influenza, making early screening and diagnosis are crucial goals for health practitioners. The aim of the study was to use machine learning (ML), an artificial neural network (ANN) and a simple statistical test to identify SARS-CoV-2 positive patients from full blood counts without knowledge of symptoms or history of the individuals. The dataset included in the analysis and training contains anonymized full blood counts results from patients seen at the Hospital Israelita Albert Einstein, at São Paulo, Brazil, and who had samples collected to perform the SARS-CoV-2 rt-PCR test during a visit to the hospital. Patient data was anonymised by the hospital, clinical data was standardized to have a mean of zero and a unit standard deviation. This data was made public with the aim to allow researchers to develop ways to enable the hospital to rapidly predict and potentially identify SARS-CoV-2 positive patients. We find that with full blood counts random forest, shallow learning and a flexible ANN model predict SARS-CoV-2 patients with high accuracy between populations on regular wards (AUC = 94-95%) and those not admitted to hospital or in the community (AUC = 80-86%). Here, AUC is the Area Under the receiver operating characteristics Curve and a measure for model performance. Moreover, a simple linear combination of 4 blood counts can be used to have an AUC of 85% for patients within the community. The normalised data of different blood parameters from SARS-CoV-2 positive patients exhibit a decrease in platelets, leukocytes, eosinophils, basophils and lymphocytes, and an increase in monocytes. SARS-CoV-2 positive patients exhibit a characteristic immune response profile pattern and changes in different parameters measured in the full blood count that are detected from simple and rapid blood tests. While symptoms at an early stage of infection are known to overlap with other common conditions, parameters of the full blood counts can be analysed to distinguish the viral type at an earlier stage than current rt-PCR tests for SARS-CoV-2 allow at present. This new methodology has potential to greatly improve initial screening for patients where PCR based diagnostic tools are limited.
Collapse
Affiliation(s)
- Abhirup Banerjee
- Department of Engineering Science, Institute of Biomedical Engineering, University of Oxford, OX3 7DQ, UK.
| | - Surajit Ray
- School of Mathematics and Statistics, University of Glasgow, Glasgow G12 8QW, UK.
| | - Bart Vorselaars
- School of Mathematics and Physics, University of Lincoln, Brayford Pool, Lincoln LN6 7TS, UK.
| | - Joanne Kitson
- School of Computer Science, Electrical and Electronic Engineering, and Engineering Maths, University of Bristol, Merchant Venturers Building, Woodland Rd, Clifton, Bristol BS8 1UB, UK
| | - Michail Mamalakis
- School of Computer Science, University of Sheffield, 211 Portobello, Sheffield City Centre, Sheffield S1 4DP, UK
| | - Simonne Weeks
- School of Pharmacy and Biomedical Sciences, University of Brighton, BN2 4GJ, UK
| | - Mark Baker
- Hypatia Solutions Ltd, Impact Hub King's Cross, 34b York Way, King's Cross, London, XGL N1, UK
| | - Louise S Mackenzie
- School of Pharmacy and Biomedical Sciences, University of Brighton, BN2 4GJ, UK.
| |
Collapse
|
22
|
Nivaggioni V, Bouriche L, Coito S, Le Floch AS, Ibrahim-Kosta M, Leonnet C, Arnoux I, Loosveld M. Use of Sysmex XN-10 red blood cell parameters for screening of hereditary red blood cell diseases and iron deficiency anaemia. Int J Lab Hematol 2020; 42:697-704. [PMID: 32639680 PMCID: PMC7754411 DOI: 10.1111/ijlh.13278] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 06/04/2020] [Accepted: 06/08/2020] [Indexed: 12/21/2022]
Abstract
Introduction In daily practice in haematology laboratories, red blood cell (RBC) abnormalities are frequent and their management is a real challenge. The aim of this study is to establish a “decision tree” using RBC and reticulocyte parameters from the SYSMEX XN‐10 analyser to distinguish between patients with a hereditary RBC disease from iron deficiency anaemia and other patients. Methods We analysed results of complete RBC counts in a cohort composed of 8217 adults divided into 5 different groups: iron deficiency anaemia (n = 120), heterozygous haemoglobinopathy (n = 92), sickle cell disease syndrome (n = 56), hereditary spherocytosis (n = 18) and other patients (n = 7931). A Classification And Regression Tree (CART) analysis was used to obtain a two‐step decision tree in order to predict these previous groups. Results Five parameters and the calculated RBC score were selected by the CART method: mean corpuscular haemoglobin concentration, percentage of microcytes, distribution width of the RBC histogram, percentage of nucleated red blood cells, immature reticulocytes fraction and finally RBC Score. When applying the tree and recommended flowchart, 158/166 of the RBC hereditary disease patients and 114/120 iron deficiency anaemia patients are detected. Overall, the correct classification rate reached 99.4%. Sensitivity and specificity for RBC disease detection were 95.2% and 99.9%, respectively. These results were confirmed in an independent validation cohort. Conclusion Based on the XN‐10 RBC and reticulocyte parameters, we propose a two‐step decision tree delivering a good prediction and classification of hereditary RBC diseases. These results can be used to optimize additional reticulocyte analysis and microscopy review.
Collapse
Affiliation(s)
- Vanessa Nivaggioni
- Laboratoire d'Hématologie, Hôpital de la Timone, Assistance Publique - Hôpitaux de Marseille, Marseille, France
| | | | | | - Anne-Sophie Le Floch
- Laboratoire d'Hématologie, Hôpital de la Timone, Assistance Publique - Hôpitaux de Marseille, Marseille, France
| | - Manal Ibrahim-Kosta
- Laboratoire d'Hématologie, Hôpital de la Timone, Assistance Publique - Hôpitaux de Marseille, Marseille, France
| | - Caroline Leonnet
- Laboratoire d'Hématologie, Hôpital de la Timone, Assistance Publique - Hôpitaux de Marseille, Marseille, France
| | - Isabelle Arnoux
- Laboratoire d'Hématologie, Hôpital de la Timone, Assistance Publique - Hôpitaux de Marseille, Marseille, France
| | - Marie Loosveld
- Laboratoire d'Hématologie, Hôpital de la Timone, Assistance Publique - Hôpitaux de Marseille, Marseille, France.,Aix Marseille Univ, CNRS, INSERM, CIML, Marseille, France
| |
Collapse
|
23
|
Neuzillet Y, Albrand G, Caillet P, Paillaud E, Mongiat-Artus P. [Specificity of the management of metastatic renal cancer in the older patient]. Prog Urol 2020; 29:874-895. [PMID: 31771770 DOI: 10.1016/j.purol.2019.08.272] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Accepted: 08/19/2019] [Indexed: 01/27/2023]
Abstract
AIM To define the necessary arrangements of medical treatment with anti-angiogenics, mTOR inhibitor or systemic immunotherapies in the management of metastatic renal cell carcinoma in elderly patients. METHOD Bibliographical search was performed from the Medline bibliographic database (NLM Pubmed tool) and Embase focused on: metastatic renal cell carcinoma, elderly, treatment. RESULTS The selection criteria for the medical treatment of metastatic renal cell carcinoma in elderly patients are the IMDC score, necessarily complemented by performance status, the tolerability profile of treatments, more frequent drug interactions, treatment adherence, management capacity of side effects, and patient preference. Each of these criteria is detailed in critical ways. CONCLUSION The efficacy and tolerability of medical treatments for metastatic renal cancer have not been reported as different depending on age. No dosage adjustment is recommended in principle. However, prevention and early treatment of side effects of treatment should be strengthened in elderly patients.
Collapse
Affiliation(s)
- Y Neuzillet
- Service d'urologie et de transplantation rénale, hôpital Foch, université de Versailles - Saint-Quentin-en-Yvelines, 40, rue Worth, 92150 Suresnes, France.
| | - G Albrand
- Service UCOG-IR, pavillon 1C Louis-Lortet, hospices civils de Lyon, centre hôpitalier Lyon Sud, 165, chemin du Grand-Revoyet, 69495 Pierre-Bénite, France
| | - P Caillet
- Service de gériatrie, unité d'oncogériatrie, hôpital européen Georges-Pompidou, université de Paris-Descartes, 20, rue Leblanc, 75908 Paris cedex 15, France
| | - E Paillaud
- Service de gériatrie, unité d'oncogériatrie, hôpital européen Georges-Pompidou, université de Paris-Descartes, 20, rue Leblanc, 75908 Paris cedex 15, France
| | - P Mongiat-Artus
- Inserm UMR, S1165, service d'urologie, unité de chirurgie et d'anesthésie ambulatoires, hôpital Saint-Louis, université de Paris-7-Denis-Diderot, 1, avenue Claude-Vellefaux, 75010 Paris, France
| |
Collapse
|
24
|
Baccini V, Geneviève F, Jacqmin H, Chatelain B, Girard S, Wuilleme S, Vedrenne A, Guiheneuf E, Toussaint-Hacquard M, Everaere F, Soulard M, Lesesve JF, Bardet V. Platelet Counting: Ugly Traps and Good Advice. Proposals from the French-Speaking Cellular Hematology Group (GFHC). J Clin Med 2020; 9:jcm9030808. [PMID: 32188124 PMCID: PMC7141345 DOI: 10.3390/jcm9030808] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 03/12/2020] [Accepted: 03/12/2020] [Indexed: 12/25/2022] Open
Abstract
Despite the ongoing development of automated hematology analyzers to optimize complete blood count results, platelet count still suffers from pre-analytical or analytical pitfalls, including EDTA-induced pseudothrombocytopenia. Although most of these interferences are widely known, laboratory practices remain highly heterogeneous. In order to harmonize and standardize cellular hematology practices, the French-speaking Cellular Hematology Group (GFHC) wants to focus on interferences that could affect the platelet count and to detail the verification steps with minimal recommendations, taking into account the different technologies employed nowadays. The conclusions of the GFHC presented here met with a "strong professional agreement" and are explained with their rationale to define the course of actions, in case thrombocytopenia or thrombocytosis is detected. They are proposed as minimum recommendations to be used by each specialist in laboratory medicine who remains free to use more restrictive guidelines based on the patient’s condition.
Collapse
Affiliation(s)
- Véronique Baccini
- Laboratoire d’hématologie, CHU de la Guadeloupe, INSERM UMR S_1134, 97159 Pointe-à-Pitre, France
- Correspondence:
| | - Franck Geneviève
- Fédération Hospitalo-Universitaire ‘Grand Ouest Against Leukemia’ (FHU GOAL), 49033 Angers, France;
| | - Hugues Jacqmin
- Université Catholique de Louvain, CHU UCL Namur, Laboratoire d’hématologie, Namur Thrombosis and Hemostasis Center, 5530 Yvoir, Belgium; (H.J.); (B.C.)
| | - Bernard Chatelain
- Université Catholique de Louvain, CHU UCL Namur, Laboratoire d’hématologie, Namur Thrombosis and Hemostasis Center, 5530 Yvoir, Belgium; (H.J.); (B.C.)
| | - Sandrine Girard
- Hospices Civils de Lyon, Centre de biologie et pathologie Est, Service d’hématologie biologique, 69500 Bron, France;
| | - Soraya Wuilleme
- Laboratoire d’Hématologie, Institut de Biologie, CHU de Nantes; 44093 Nantes CEDEX, France;
| | - Aurélie Vedrenne
- Service de biologie clinique, Hôpital Foch, 92150 Suresnes, France;
| | - Eric Guiheneuf
- Service d’Hématologie Biologique, CHU Amiens-Picardie, 80054 Amiens CEDEX, France;
| | | | | | - Michel Soulard
- Plateau technique d’hématologie, Laboratoire Biogroup, 92300 Levallois-Perret, France;
| | | | - Valérie Bardet
- Service d’Hématologie-Immunologie-Transfusion, CHU Ambroise Paré, INSERM UMR 1184, AP-HP, Université Paris Saclay, 92100 Boulogne-Billancourt, France;
| |
Collapse
|
25
|
Le Cornet C, Schildknecht K, Rossello Chornet A, Fortner RT, González Maldonado S, Katzke VA, Kühn T, Johnson T, Olek S, Kaaks R. Circulating Immune Cell Composition and Cancer Risk: A Prospective Study Using Epigenetic Cell Count Measures. Cancer Res 2020; 80:1885-1892. [PMID: 32075798 DOI: 10.1158/0008-5472.can-19-3178] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 12/31/2019] [Accepted: 02/12/2020] [Indexed: 11/16/2022]
Abstract
Although ample evidence indicates that immune cell homeostasis is an important prognostic outcome determinant in patients with cancer, few studies have examined whether it also determines cancer risk among initially healthy individuals. We performed a case-cohort study including incident cases of breast (n = 207), colorectal (n = 111), lung (n = 70), and prostate (n = 201) cancer as well as a subcohort (n = 465) within the European Prospective Investigation into Cancer and Nutrition-Heidelberg cohort. Relative counts of neutrophils, monocytes, and lymphocyte sublineages were measured by qRT-PCR. HRs and 95% confidence intervals were used to measure the associations between relative counts of immune cell and cancer risks. When relative counts of immune cell types were taken individually, a significant positive association was observed between relative counts of FOXP3+ regulatory T cells (Tregs) and lung cancer risk, and significant inverse associations were observed between relative CD8+ counts and risks of lung and breast cancer (overall and ER+ subtype). Multivariable models with mutual adjustments across immune markers showed further significant positive associations between higher relative FOXP3+ T-cell counts and increased risks of colorectal and breast cancer (overall and ER- subtype). No associations were found between immune cell composition and prostate cancer risk. These results affirm the relevance of elevated FOXP3+ Tregs and lower levels of cytotoxic (CD8+) T cells as risk factors for tumor development. SIGNIFICANCE: This epidemiologic study supports a role for both regulatory and cytotoxic T cells in determining cancer risk among healthy individuals.See related commentary by Song and Tworoger, p. 1801.
Collapse
Affiliation(s)
- Charlotte Le Cornet
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Konstantin Schildknecht
- Ivana Türbachova Laboratory for Epigenetics, Precision for Medicine Group, Epiontis GmbH, Berlin, Germany
| | - Araceli Rossello Chornet
- Ivana Türbachova Laboratory for Epigenetics, Precision for Medicine Group, Epiontis GmbH, Berlin, Germany
| | - Renée T Fortner
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | | | - Verena A Katzke
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Tilman Kühn
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Theron Johnson
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Sven Olek
- Ivana Türbachova Laboratory for Epigenetics, Precision for Medicine Group, Epiontis GmbH, Berlin, Germany
| | - Rudolf Kaaks
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany. .,Translational Lung Research Center (TLRC) Heidelberg, Member of the German Center for Lung Research (DZL), Heidelberg, Germany
| |
Collapse
|
26
|
Nouri A, Matur A, Pennington Z, Elson N, Karim Ahmed A, Huq S, Patel K, Jeong W, Nasser R, Tessitore E, Sciubba DM, Cheng JS. Prevalence of anemia and its relationship with neurological status in patients undergoing surgery for degenerative cervical myelopathy and radiculopathy: A retrospective study of 2 spine centers. J Clin Neurosci 2020; 72:252-257. [PMID: 31911107 DOI: 10.1016/j.jocn.2019.11.027] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Accepted: 11/26/2019] [Indexed: 02/08/2023]
Abstract
Both degenerative cervical myelopathy (DCM) and anemia are common among older patients, however insufficient data exists evaluating their co-occurrence and the influence of anemia on baseline neurological status. To address this, we examined a retrospective multicenter series of patients treated for DCM or radiculopathy. Myelopathy was graded using the Nurick scale. Established criteria for diagnosing abnormalities were used to identify blood abnormalities, including macrocytic and microcytic anemia. Multivariable regression was used to determine the impact of hematological anomalies on Nurick grades. In our analysis, we included 725 patients (age of 57.1 ± 11.7), of whom 398 presented with myelopathy and 327 presented with radiculopathy alone. Twenty six percent of all patients were anemic at baseline and the mean preoperative Nurick grade across all patients was 2.09 ± 1.29; mean Nurick grade amongst those with DCM was 2.98 ± 1.12. Compared to those with myelopathy, patients with radiculopathy were significantly younger (53.8 ± 11.0 vs 59.8 ± 11.6, p < 0.001) and less likely to be anemic (16.8% vs 33.7%, p < 0.0001). Nurick grading was significantly higher in myelopathy patients with anemia (3.13 ± 1.19 vs 2.91 ± 1.07, p = 0.05) and macrocytic anemia (4.00 ± 1.41 vs 2.97 ± 1.11, p = 0.04). Multivariate regression demonstrated that anemia (p < 0.001), age (p < 0.0001), and posterior surgical approach (p < 0.0001) were related to worse preoperative Nurick grade. In sum, these data suggest that anemia and degenerative cervical spine pathologies commonly co-occur. Anemia, and macrocytic anemia specifically, is associated with poorer neurological status in myelopathic patients. These data suggest anemia may influence baseline neurological status and impact surgical recovery in patients treated for DCM or radiculopathy.
Collapse
Affiliation(s)
- Aria Nouri
- Department of Neurosurgery, Hôpitaux Universitaires de Genève, Genève, Switzerland
| | - Abhijith Matur
- Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Zach Pennington
- Department of Neurosurgery, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Nora Elson
- Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - A Karim Ahmed
- Department of Neurosurgery, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Sakibul Huq
- Department of Neurosurgery, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Kishan Patel
- Department of Neurosurgery, Yale University School of Medicine, New Haven, CT, USA
| | - William Jeong
- Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Rani Nasser
- Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Enrico Tessitore
- Department of Neurosurgery, Hôpitaux Universitaires de Genève, Genève, Switzerland
| | - Daniel M Sciubba
- Department of Neurosurgery, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Joseph S Cheng
- Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, OH, USA.
| |
Collapse
|
27
|
Volokitina E, Antropova I, Yershov A, Chelchushev D, Kutepov S. Effect of age on the functioning of hemostasis system during hip joint endoprosthesis. BIO WEB OF CONFERENCES 2020. [DOI: 10.1051/bioconf/20202201014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The study was performed on 109 osteoarthritis patients who underwent hip joint endoprosthetics; the effect of age on changes in hemostasis system, blood loss level and deep veins thrombosis development in the background of standard prevention with low-molecular heparins were studied. Before the surgery, it was determined that 56 elderly patients (60.3 ± 6.4 years) compared to 53 middle-aged patients (41.8 ± 6.8 years) had a significantly higher initial and postoperative endothelial dysfunction, higher fibrin formation and lower anticoagulant potential; however, it was found that on the background of pharmacological anticoagulant therapy the changes in the hemostasis functioning in elderly patients did not lead to an increase of either blood loss or the number of thromboses.
Collapse
|
28
|
Price J, Lord JM, Harrison P. Inflammaging and platelet hyperreactivity: A new therapeutic target? J Thromb Haemost 2020; 18:3-5. [PMID: 31894663 DOI: 10.1111/jth.14670] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Revised: 10/24/2019] [Accepted: 10/25/2019] [Indexed: 12/11/2022]
Affiliation(s)
- Joshua Price
- College of Medical and Dental Sciences, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
| | - Janet M Lord
- College of Medical and Dental Sciences, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
| | - Paul Harrison
- College of Medical and Dental Sciences, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
| |
Collapse
|
29
|
Memic-Serdarevic A, Burnazovic-Ristic L, Sulejmanpasic G, Tahirovic A, Valjevac A, Lazovic E. Review of Standard Laboratory Blood Parameters in Patients with Schizophrenia and Bipolar Disorder. Med Arch 2020; 74:374-380. [PMID: 33424093 PMCID: PMC7780782 DOI: 10.5455/medarh.2020.74.374-380] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Introduction Symptomatic and etiopathologic heterogeneity of schizophrenia (SCH) and bipolar disorder (BD) can be adequately addressed using a dimensional approach to psychopathology, as well as interpreting physiological properties and markers as predictors of disease onset and relapse. Risk factors, genetic and environmental, are likely to modify the neurobiological processes characteristic of certain physiological processes that manifest to a greater degree of overlapping symptoms. One of the most common laboratory tests in psychiatric patients is a standard laboratory blood test. It gives us an insight into the general somatic condition of the patient. It assesses the ability to transport oxygen to tissues and carbon dioxide back to the lungs via erythrocytes (RBC) and hemoglobin (HGB) as their most important constituents, and is also an indicator of iron status and blood oxygenation. Aim Schizophrenia (SCH) and bipolar disorder (BD) are psychiatric disorders whose complex etiology and pathogenesis are still far from known. A correlation between red blood cell abnormalities and these diseases has been recognized in some studies. One of the most common laboratory tests in psychiatric patients is a standard laboratory blood test. However, so far there is a small number of published papers that relate to the relationship between laboratory parameters of blood and the aim of this paper is to reveal more light in this subject. Methods The research was done as an observational prospective clinical study that has evaluated different physiological and pathological parameters in patients with BD and SCH over a two-year period. A total of 159 patients with schizophrenia, 61 patients diagnosed with bipolar disorder and 82 healthy subjects participated in this study. Results At baseline, BD compared to SCH patients had higher mean lymphocyte count (2,6±0,7 vs. 2,0±0,6x109; p=0,006) and haemoglobin concentration (146,8±12,2 vs. 140,2±14,7 g/L; p=0,03), and significantly lower red cell distribution width (13,6±2,2 vs. 14,7±1,8%; p=0,008). In both BD and SCH patients there was a significant number of patients with low red blood cells count and low haemoglobin concentration, and high MCH and MCHC at baseline and at 3 and 6 months of follow up. Conclusions The finding that SCH as well as BD differed from controls with respect to red blood cells, hemoglobin, lymphocytes, and average platelet count was consistent with previous findings and could be understood as a qualitative measure in the evaluation of this sample. The fact that no association with other parameters was found, as well as an association with the diagnosis, does not exclude that these associations can be found in larger samples.
Collapse
Affiliation(s)
- Amra Memic-Serdarevic
- Clinic of Psychiatry, Clinical Center, University of Sarajevo, Sarajevo, Bosnia and Herzegovina
| | - Lejla Burnazovic-Ristic
- Institute of Pharmacology, Clinical Pharmacology and Toxicology, Medical Faculty, University of Sarajevo, Sarajevo, Bosnia and Herzegovina
| | - Gorana Sulejmanpasic
- Clinic of Psychiatry, Clinical Center, University of Sarajevo, Sarajevo, Bosnia and Herzegovina
| | - Amir Tahirovic
- Clinic of Psychiatry, Clinical Center, University of Sarajevo, Sarajevo, Bosnia and Herzegovina
| | - Amina Valjevac
- Department of Physiology and Biochemistry, Medical Faculty, University of Sarajevo, Sarajevo, Bosnia and Herzegovina
| | - Edina Lazovic
- Department of Pathology, Medical Faculty, University of Sarajevo, Sarajevo, Bosnia and Herzegovina
| |
Collapse
|
30
|
Tian J, Cheng L, Cui X, Lei X, Tang J, Cheng B. Investigating the effect of age on platelet ultrastructure using transmission electron microscopy. Int Wound J 2019; 16:1457-1463. [PMID: 31486290 PMCID: PMC7949169 DOI: 10.1111/iwj.13214] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 08/17/2019] [Accepted: 08/18/2019] [Indexed: 12/15/2022] Open
Abstract
In the present study, the age- and sex-related differences in platelet ultrastructure were investigated using transmission electron microscopy (TEM). A total of 15 healthy volunteers were grouped according to age, with 5 people in each of the following groups: young group (25-45 years), middle-aged group (46-65 years), and old-aged group (> 65 years). In the TEM micrographs, the internal components, specifically the α-granules, dense granules, and lysosomal granules, of 20 platelets were counted for each group. Two-way analysis of variance of age and sex variance was used to compare the results. The ultrastructure of the platelets in the old-aged group was observed to be quite different from those of the young and middle-aged groups. Specifically, with ageing, the platelet membrane becomes more irregular in shape and non-smooth, and multiple platelet membrane ruptures are observed. Furthermore, the pseudopodia and protuberances become more numerous and slender, and the number of α-granules is significantly reduced. These morphological changes indicate that ageing may affect the function of platelets, which in turn affects the efficacy of platelet concentrates. Thus, the effects of age should be considered when using platelet concentrates prepared from elderly autologous blood.
Collapse
Affiliation(s)
- Ju Tian
- Department of Plastic SurgeryZhongshan City People's HospitalZhongshanGuangdongChina
- Department of Plastic SurgeryGeneral Hospital of Southern Theater Command, PLAGuangzhouGuangdongChina
- The Key Laboratory of Trauma Treatment and Tissue Repair of Tropical Area, PLAGuangzhouGuangdongChina
| | - Liu‐Hang‐Hang Cheng
- Key Laboratory of Tissue Repair and Regeneration of PLA, and Beijing Key Research Laboratory of Skin Injury, Repair and RegenerationThe Fourth Medical Center of General Hospital of PLABeijingChina
- Institute of Basic Medical SciencesGeneral Hospital of PLABeijingChina
| | - Xiao Cui
- Department of Plastic SurgeryGeneral Hospital of Southern Theater Command, PLAGuangzhouGuangdongChina
- The Key Laboratory of Trauma Treatment and Tissue Repair of Tropical Area, PLAGuangzhouGuangdongChina
- Guangdong Provincial Hospital of Chinese MedicineGuangzhouGuangdongChina
| | - Xiao‐Xuan Lei
- Department of Plastic SurgeryGeneral Hospital of Southern Theater Command, PLAGuangzhouGuangdongChina
- The Key Laboratory of Trauma Treatment and Tissue Repair of Tropical Area, PLAGuangzhouGuangdongChina
| | - Jian‐Bing Tang
- Department of Plastic SurgeryGeneral Hospital of Southern Theater Command, PLAGuangzhouGuangdongChina
| | - Biao Cheng
- Department of Plastic SurgeryGeneral Hospital of Southern Theater Command, PLAGuangzhouGuangdongChina
- The Key Laboratory of Trauma Treatment and Tissue Repair of Tropical Area, PLAGuangzhouGuangdongChina
| |
Collapse
|
31
|
Abstract
PURPOSE OF REVIEW Platelets are specialized effector cells that rapidly respond to sites of vascular injury. However, emerging data demonstrate that platelets possess diverse functions that also mediate inflammatory responses and neurological diseases. These functions are relevant to disease processes prevalent among older adults and likely influence susceptibility to thrombotic and inflammatory disorders. RECENT FINDINGS Platelet counts decrease in aged individuals whereas platelet reactivity increases. The platelet transcriptome is altered in aged individuals resulting in altered platelet function and exaggerated inflammation. Platelet signaling to monocytes in aging results in significantly more cytokines because of increased platelet-derived granzyme A. Platelet activation in aging appears to be driven, in part, because of increased reactive oxygen species and activation of the mammalian target of rapamycin pathway. Increased platelet hyperactivity in diseases is associated with aging, such cardiovascular disease and sepsis, exaggerate inflammation and thrombosis. Noncanonical functions of platelets influence the development of neurological diseases including Alzheimer's disease. SUMMARY Although there have been advances dissecting the molecular mechanisms regarding aging-related changes in platelets, many knowledge gaps still remain. Studies filling these gaps are likely to identify new mechanisms driving aging-related changes in platelet gene expression and function, and contributing to injurious thrombo-inflammation in older adults.
Collapse
Affiliation(s)
- Emilie Montenont
- University of Utah Molecular Medicine Program, Salt Lake City, Utah, 84112
| | - Matthew T. Rondina
- University of Utah Molecular Medicine Program, Salt Lake City, Utah, 84112
- Department of Internal Medicine, University of Utah, Salt Lake City, Utah, 84132
- George E. Wahlen VAMC Department of Internal Medicine and GRECC, Salt Lake City, Utah, 84148
| | - Robert A. Campbell
- University of Utah Molecular Medicine Program, Salt Lake City, Utah, 84112
- Department of Internal Medicine, University of Utah, Salt Lake City, Utah, 84132
| |
Collapse
|
32
|
Le Blanc J, Lordkipanidzé M. Platelet Function in Aging. Front Cardiovasc Med 2019; 6:109. [PMID: 31448291 PMCID: PMC6692461 DOI: 10.3389/fcvm.2019.00109] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Accepted: 07/22/2019] [Indexed: 12/20/2022] Open
Abstract
Aging is associated with an increased incidence of cardiovascular disease and thrombosis. Platelets play a major role in maintaining hemostasis and in thrombus formation, making them a key player in thrombotic disorders. Whereas it is well-known that platelet aggregability is increased in vascular diseases, the contribution of age-related changes in platelet biology to cardiovascular risk is not well-understood. Several lines of evidence support that platelets from older subjects differ in their function and structure, making platelets more prone to activation and less sensitive to inhibition. These age-related changes could lead to platelet hyperactivity and to the development of a prothrombotic state in advanced age. This review will focus on platelet biochemical modifications during aging and on the mechanisms by which these alterations could lead to thrombotic disease.
Collapse
Affiliation(s)
- Jessica Le Blanc
- Research Center, Montreal Heart Institute, Montreal, QC, Canada.,Faculty of Pharmacy, Université de Montréal, Montreal, QC, Canada
| | - Marie Lordkipanidzé
- Research Center, Montreal Heart Institute, Montreal, QC, Canada.,Faculty of Pharmacy, Université de Montréal, Montreal, QC, Canada
| |
Collapse
|
33
|
Kuhnla A, Reinthaler M, Braune S, Maier A, Pindur G, Lendlein A, Jung F. Spontaneous and induced platelet aggregation in apparently healthy subjects in relation to age. Clin Hemorheol Microcirc 2019; 71:425-435. [DOI: 10.3233/ch-199006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- A. Kuhnla
- Institute of Biomaterial Science and Berlin-Brandenburg Centre for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
| | - M. Reinthaler
- Institute of Biomaterial Science and Berlin-Brandenburg Centre for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
- Department of Cardiology, Charité - Universitätsmedizin Berlin, University Hospital, Campus Benjamin Franklin, Berlin, Germany
| | - S. Braune
- Institute of Biomaterial Science and Berlin-Brandenburg Centre for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
| | - A. Maier
- Institute of Biomaterial Science and Berlin-Brandenburg Centre for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
| | - Gerhard Pindur
- Institute of Clinical Haemostaseology and Transfusion Medicine, Saarland University Hospital, Homburg, Germany
| | - A. Lendlein
- Institute of Biomaterial Science and Berlin-Brandenburg Centre for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
- Institute of Chemistry, University of Potsdam, Potsdam, Germany
| | - F. Jung
- Institute of Biomaterial Science and Berlin-Brandenburg Centre for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
- Institute of Clinical Haemostaseology and Transfusion Medicine, Saarland University Hospital, Homburg, Germany
| |
Collapse
|
34
|
Mean Platelet Volume Predicts Vascular Access Events in Hemodialysis Patients. J Clin Med 2019; 8:jcm8050608. [PMID: 31060235 PMCID: PMC6571831 DOI: 10.3390/jcm8050608] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 04/25/2019] [Accepted: 05/02/2019] [Indexed: 12/21/2022] Open
Abstract
Arteriovenous fistula (AVF) and arteriovenous graft (AVG) is the vascular access (VA) of 78% of hemodialysis patients (HD) in France. VA dysfunction corresponding to either stenosis requiring angioplasty or acute thrombosis is responsible for 30% of hospitalizations. Mean platelet volume (MPV) is a biological marker of cardiovascular events. We studied MPV in a cohort of HD patients as a predictive marker of VA dysfunction. We conducted a prospective monocentric cohort study that included patients with AVF or AVG on chronic HD (n = 153). The primary outcome was the incidence of VA dysfunction regarding MPV value. The median MPV was 10.8 fL (7.8-13.5), and four groups were designed according to MPV quartiles. Fifty-four patients experienced the first event of VA dysfunction. The incidence of VA dysfunction was higher in patients with the highest MPV: 59% (23 events), 34% (14 events), 27% (11 events), and 18% (6 events), respectively, for the fourth, third, second, and first quartiles (p = 0.001). Multivariate analysis confirmed an independent association between MPV and VA dysfunction-OR 1.52 (1.13-2.07), p < 0.001. VA dysfunction is predicted by MPV level. Patients with the highest MPV have the highest risk of VA events.
Collapse
|
35
|
Magierowicz M, Lechevalier N, Freynet N, Pastoret C, Badaoui B, Ly-Sunnaram B, Fest T, Lacombe F, Wagner-Ballon O, Roussel M. Reference Values for WBC Differential by Hematoflow Analysis. Am J Clin Pathol 2019; 151:324-327. [PMID: 30383211 DOI: 10.1093/ajcp/aqy147] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Objectives WBC differentials performed using flow cytometry with monoclonal antibodies have been developed in the last decade and are nowadays integrated into the routine workflow of some laboratories. Definition of reference values for each population is required in order to achieve an automatic validation of the results by laboratory software. Methods We analyzed 584 samples from three hospitals using the Hematoflow solution to define the reference values. Results Reference values are presented for five groups according to age (0-5, 6-11, 12-19, 20-69, and >69 years). Conclusions These normal values will be helpful in the definition of relevant threshold for the automatic validation of samples analyzed by flow cytometry and the flagging of pathologic samples.
Collapse
Affiliation(s)
- Marion Magierowicz
- Laboratoire Hématologie, Centre Hospitalier Universitaire Rennes, Rennes, France
| | - Nicolas Lechevalier
- Laboratoire d’Hématologie, Centre Hospitalier Universitaire Bordeaux, Bordeaux, France
| | - Nicolas Freynet
- Département d’Hématologie et Immunologie Biologiques, Assistance Publique Hôpitaux de Paris, Hôpitaux Universitaires Henri-Mondor, Créteil, France
| | - Cedric Pastoret
- Laboratoire Hématologie, Centre Hospitalier Universitaire Rennes, Rennes, France
| | - Bouchra Badaoui
- Département d’Hématologie et Immunologie Biologiques, Assistance Publique Hôpitaux de Paris, Hôpitaux Universitaires Henri-Mondor, Créteil, France
| | - Beatrice Ly-Sunnaram
- Laboratoire Hématologie, Centre Hospitalier Universitaire Rennes, Rennes, France
| | - Thierry Fest
- Laboratoire Hématologie, Centre Hospitalier Universitaire Rennes, Rennes, France
- Inserm U1236, Microenvironment, Cell Differentiation, Immunology and Cancer, Université Rennes, Inserm, Établissement Français du Sang Bretagne, Rennes, France
| | - Francis Lacombe
- Laboratoire d’Hématologie, Centre Hospitalier Universitaire Bordeaux, Bordeaux, France
| | - Orianne Wagner-Ballon
- Département d’Hématologie et Immunologie Biologiques, Assistance Publique Hôpitaux de Paris, Hôpitaux Universitaires Henri-Mondor, Créteil, France
- Inserm U955, Université Paris-Est, Créteil, France
| | - Mikael Roussel
- Laboratoire Hématologie, Centre Hospitalier Universitaire Rennes, Rennes, France
- Inserm U1236, Microenvironment, Cell Differentiation, Immunology and Cancer, Université Rennes, Inserm, Établissement Français du Sang Bretagne, Rennes, France
| |
Collapse
|
36
|
Comprehensive haematological indices reference intervals for a healthy Omani population: First comprehensive study in Gulf Cooperation Council (GCC) and Middle Eastern countries based on age, gender and ABO blood group comparison. PLoS One 2018; 13:e0194497. [PMID: 29621271 PMCID: PMC5886408 DOI: 10.1371/journal.pone.0194497] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 02/21/2018] [Indexed: 11/19/2022] Open
Abstract
Background Reference intervals for venous blood parameters differs with age, gender, geographic region, and ethnic groups. Hence local laboratory reference intervals are important to improve the diagnostic accuracy of health assessments and diseases. However, there have been no comprehensive published reference intervals established in Oman, the Gulf Cooperation Council or Middle Eastern countries. Hence, the aim of this study was to establish reference intervals for full blood count in healthy Omani adults. Methods Venous blood specimens were collected from 2202 healthy individuals aged 18 to 69 years from January 2012 to April 2017, and analysed by Sysmex XS-1000i and Cell-Dyn Sapphire automated haematology analysers. Results were statistically analysed and compared by gender, age, and ABO blood group. The lower and upper reference limits of the haematology reference intervals were established at the 2.5th and 97.5th percentiles respectively. Results Reference intervals were calculated for 17 haematology parameters which included red blood cell, white blood cell, and platelet parameters. Red blood cell (RBC), haemoglobin (HGB), haematocrit (HCT), platelet and platelet haematocrit counts of the healthy donors were significantly different between males and females at all ages (p < 0.05), with males having higher mean values of RBC, HGB and HCT than females. Other complete blood count parameters showed no significant differences between genders, age groups, instruments, or blood groups. Our study showed a lower haemoglobin limit for the normal reference interval in males and females than the currently used in Oman. Conclusions Data from this study established specific reference intervals which could be considered for general use in Oman. The differences in haematology reference intervals highlights the necessity to establish reference intervals for venous blood parameters among the healthy population in each country or at least in each region.
Collapse
|
37
|
Bakrim S, Motiaa Y, Benajiba M, Ouarour A, Masrar A. Establishment of the hematology reference intervals in a healthy population of adults in the Northwest of Morocco (Tangier-Tetouan region). Pan Afr Med J 2018; 29:169. [PMID: 30050633 PMCID: PMC6057597 DOI: 10.11604/pamj.2018.29.169.13042] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 03/02/2018] [Indexed: 11/11/2022] Open
Abstract
Introduction Among the most useful biological examinations in common medical practice, blood count is the most prescribed. The reference intervals of the hematological parameters of this examination are of major importance for clinical orientations and therapeutic decisions. In Morocco, the reference values used by the laboratories of medical biology and used by doctors are ones collected from Caucasian and European individuals. These values could be different in the Moroccan population. Besides, reference intervals of the blood count specific to the various Moroccan regions are missing. We decided to determine the reference intervals from a population of healthy adults of the Tangier-Tetouan region by following the procedures recommended by the IFCC-CLSI guidelines in 2008 and comparing them to those of the literature. Methods Blood samples were taken from 15840 adult volunteers (8402 men from 18 to 55 years old and 7438 women from 18 to 50 years old) from the regional transfusion center of Tangier and Tetouan during a period between November 2014 and May 2016. The complete blood count was measured by the Sysmex KX21N® analyzer. For each sample a systematic blood smear was done to determine the leukocyte differential. The data analysis was made by the software SPSS 20.0 by using percentiles 2.5th and 97.5th. Results A significant difference between both sexes was noted (p<0,001) for all the hematological parameters (red blood cells, hematocrit, hemoglobin, mean corpuscular volume, mean corpuscular hemoglobin, mean corpuscular hemoglobin concentration, leukocytes, neutrophils, basophils, eosinophils, monocytes, platelets and mean platelet volume) except for the numeration of lymphocytes (p = 0.552). The values of this study were compared with those reported in Arabic, Caucasian and African populations. Said comparisons showed the existence of significant differences. Conclusion This study tries to accentuate the necessity of proceeding with the establishment of reference intervals specific to the blood count of the Moroccan population to avoid errors of diagnosis, allow clinicians to interpret with greater specificity the hematological examinations and to improve the quality of medical care distributed to patients.
Collapse
Affiliation(s)
- Saad Bakrim
- Laboratory of Biology and Health, Abdelmalek Essaâdi University, Faculty of Science, BP 2121, Tetouan, Morocco.,Hematology Laboratory, Provincial Hospital Center, Mohammed VI hospital, M'diq, Morocco.,Hematology Laboratory, Faculty of Medicine and Pharmacy, Mohammed V University, Rabat, Morocco; Central Hematology Laboratory, Ibn Sina University Hospital, Rabat, Morocco
| | - Youssef Motiaa
- Anesthesia Reanimation Department, Ibn Sina University Hospital, Rabat, Faculty of Medicine and Pharmacy, Mohammed V University, Rabat, Morocco
| | - Mohamed Benajiba
- National Center of Blood transfusion and Hematology, Rabat, Morocco
| | - Ali Ouarour
- Laboratory of Biology and Health, Abdelmalek Essaâdi University, Faculty of Science, BP 2121, Tetouan, Morocco
| | - Azlarab Masrar
- Hematology Laboratory, Faculty of Medicine and Pharmacy, Mohammed V University, Rabat, Morocco; Central Hematology Laboratory, Ibn Sina University Hospital, Rabat, Morocco
| |
Collapse
|
38
|
Coiffard B, Pelardy M, Loundou AD, Nicolino-Brunet C, Thomas PA, Papazian L, Dignat-George F, Reynaud-Gaubert M. Effect of Immunosuppression on Target Blood Immune Cells Within 1 Year After Lung Transplantation: Influence of Age on T Lymphocytes. Ann Transplant 2018; 23:11-24. [PMID: 29302022 PMCID: PMC6248312 DOI: 10.12659/aot.906372] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Background Lymphocytes are targeted by immunosuppressive therapy in solid organ transplantation and they influence allograft outcome. Material/Methods Peripheral blood lymphocyte subsets (PBLS) determined by flow cytometry during the first year post-transplant from patients who underwent a first lung transplantation in a French University Hospital between December 2011 and July 2013 were retrospectively analyzed according to recipient characteristics and allograft outcome. Results Fifty-seven recipients were enrolled and 890 PBLS were collected. T lymphocytes and NK cells were rapidly decreased, below normal range, from the first postoperative days. B cells decreased more gradually, remaining within normal range, with the lowest level reached after day 100. In multivariate analysis, greater T lymphopenia was found in older recipients (−414 [−709 to −119] cells/μL, p=0.007). According to the outcome, multivariate analysis evidenced lower levels of lymphocytes when bacterial and viral infection occurred (−177 [−310 to −44] cells/μL, p=0.009 and (−601 [−984 to −218] cells/μL, p=0.002, respectively), higher CD8+ T lymphocytes with BOS (+324 [+94 to +553] cells/μL, p=0.006), and higher leukocytes with restrictive allograft syndrome (+3770 [+418 to +7122] cells/μL, p=0.028). Conclusions Aging is associated in our cohort with more severe T lymphopenia after induction therapy for lung transplantation. The analysis of leukocytes and PBLS is associated with specific profile according to the allograft outcome.
Collapse
Affiliation(s)
- Benjamin Coiffard
- Department of Respiratory Medicine and Lung Transplantation, Hosital Nord, Marseille, France.,URMITE CNRS IRD UMR 6236, Aix-Marseille University, Marseille, France
| | - Matthieu Pelardy
- Laboratory of Hematology and Vascular Biology, Hospital La Conception, Marseille, France
| | - Anderson D Loundou
- Department of Public Health, Aix-Marseille University, Marseille, France
| | - Corine Nicolino-Brunet
- Laboratory of Hematology and Vascular Biology, Hospital La Conception, Marseille, France
| | | | - Laurent Papazian
- URMITE CNRS IRD UMR 6236, Aix-Marseille University, Marseille, France.,Respiratory Intensive Care Unit, Hospital Nord, Marseille, France
| | - Françoise Dignat-George
- Laboratory of Hematology and Vascular Biology, Hospital La Conception, Marseille, France.,VRCM, UMR-S1076 INSERM, Aix-Marseille University, Marseille, France
| | - Martine Reynaud-Gaubert
- Department of Respiratory Medicine and Lung Transplantation, Hosital Nord, Marseille, France.,URMITE CNRS IRD UMR 6236, Aix-Marseille University, Marseille, France
| |
Collapse
|
39
|
Nakae R, Yokobori S, Takayama Y, Kuwamoto K, Naoe Y, Yokota H. Age-related differences in fibrinolytic parameters in patients with acute traumatic brain injury. Surg Neurol Int 2017; 8:214. [PMID: 28966820 PMCID: PMC5609444 DOI: 10.4103/sni.sni_56_17] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2017] [Accepted: 07/26/2017] [Indexed: 11/18/2022] Open
Abstract
Background: Coagulopathy and old age have been associated with poor outcomes in traumatic brain injury (TBI) patients; however, the relationships of coagulopathy and age with the acute phase of TBI remain unclear. We hypothesized that coagulation/fibrinolytic abnormalities are more severe in older patients in the acute phase of TBI and may explain, in part, their poor outcome. Methods: We analyzed the relationship between coagulation/fibrinolytic parameters and age in the acute phase of TBI by retrospectively evaluating 274 patients with initial blood samples obtained no more than 1 hour after injury. Measurement of platelet count, prothrombin time, activated partial thromboplastin time, plasma levels of fibrinogen, and D-dimer was done in the emergency department on arrival as well as 3, 6, and 12 hours following injury. Values were compared between patients aged 16–55 years (group 1) and those aged older than 55 years (group 2) with an Abbreviated Injury Score (AIS)-head of 3–5 to identify any relationship between these parameters and age. Results: When groups 1 and 2 were matched for AIS-head, plasma levels of D-dimer in group 2 were significantly higher than those in group 1 from hospital admission to 12 hours after injury. The Glasgow Outcome Scale scores at 3 months post-injury of group 2 with AIS 4 and 5 were significantly lower than those of group 1 (both P < 0.0001). Conclusions: Fibrinolytic abnormalities are more severe in older acute-phase TBI patients, which may be a factor associated with their poor prognosis.
Collapse
Affiliation(s)
- Ryuta Nakae
- Emergency and Critical Care Center, Kawaguchi Municipal Medical Center, Kawaguchi-shi, Saitama, Japan
| | - Shoji Yokobori
- Department of Emergency and Critical Care Medicine, Nippon Medical School, Bunkyo-ku, Tokyo, Japan
| | - Yasuhiro Takayama
- Department of Emergency and Critical Care Medicine, Nippon Medical School, Bunkyo-ku, Tokyo, Japan
| | - Kentaro Kuwamoto
- Department of Emergency and Critical Care Medicine, Nippon Medical School, Bunkyo-ku, Tokyo, Japan
| | - Yasutaka Naoe
- Emergency and Critical Care Center, Kawaguchi Municipal Medical Center, Kawaguchi-shi, Saitama, Japan
| | - Hiroyuki Yokota
- Department of Emergency and Critical Care Medicine, Nippon Medical School, Bunkyo-ku, Tokyo, Japan
| |
Collapse
|
40
|
Pellegrino RM, Riondato F, Ferbo L, Boero M, Palmieri A, Osella L, Pollicino P, Miniscalco B, Saglio G, Roetto A. Altered Erythropoiesis in Mouse Models of Type 3 Hemochromatosis. BIOMED RESEARCH INTERNATIONAL 2017; 2017:2408941. [PMID: 28540293 PMCID: PMC5433419 DOI: 10.1155/2017/2408941] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Revised: 03/01/2017] [Accepted: 04/04/2017] [Indexed: 01/08/2023]
Abstract
Type 3 haemochromatosis (HFE3) is a rare genetic iron overload disease which ultimately lead to compromised organs functioning. HFE3 is caused by mutations in transferrin receptor 2 (TFR2) gene that codes for two main isoforms (Tfr2α and Tfr2β). Tfr2α is one of the hepatic regulators of iron inhibitor hepcidin. Tfr2β is an intracellular isoform of the protein involved in the regulation of iron levels in reticuloendothelial cells. It has been recently demonstrated that Tfr2 is also involved in erythropoiesis. This study aims to further investigate Tfr2 erythropoietic role by evaluating the erythropoiesis of two Tfr2 murine models wherein either one or both of Tfr2 isoforms have been selectively silenced (Tfr2 KI and Tfr2 KO). The evaluations were performed in bone marrow and spleen, in 14 days' and 10 weeks' old mice, to assess erythropoiesis in young versus adult animals. The lack of Tfr2α leads to macrocytosis with low reticulocyte number and increased hemoglobin values, together with an anticipation of adult BM erythropoiesis and an increased splenic erythropoiesis. On the other hand, lack of Tfr2β (Tfr2 KI mice) causes an increased and immature splenic erythropoiesis. Taken together, these data confirm the role of Tfr2α in modulation of erythropoiesis and of Tfr2β in favoring iron availability for erythropoiesis.
Collapse
Affiliation(s)
- R. M. Pellegrino
- Department of Clinical and Biological Sciences, AOU San Luigi Gonzaga, University of Torino, Orbassano, Torino, Italy
| | - F. Riondato
- Department of Veterinary Sciences, University of Torino, Grugliasco, Torino, Italy
| | - L. Ferbo
- Department of Clinical and Biological Sciences, AOU San Luigi Gonzaga, University of Torino, Orbassano, Torino, Italy
| | - M. Boero
- Department of Clinical and Biological Sciences, AOU San Luigi Gonzaga, University of Torino, Orbassano, Torino, Italy
| | - A. Palmieri
- Department of Clinical and Biological Sciences, AOU San Luigi Gonzaga, University of Torino, Orbassano, Torino, Italy
| | - L. Osella
- Department of Veterinary Sciences, University of Torino, Grugliasco, Torino, Italy
| | - P. Pollicino
- Department of Veterinary Sciences, University of Torino, Grugliasco, Torino, Italy
| | - B. Miniscalco
- Department of Veterinary Sciences, University of Torino, Grugliasco, Torino, Italy
| | - G. Saglio
- Department of Clinical and Biological Sciences, AOU San Luigi Gonzaga, University of Torino, Orbassano, Torino, Italy
| | - A. Roetto
- Department of Clinical and Biological Sciences, AOU San Luigi Gonzaga, University of Torino, Orbassano, Torino, Italy
| |
Collapse
|
41
|
Kone B, Maiga M, Baya B, Sarro YDS, Coulibaly N, Kone A, Diarra B, Sanogo M, Togo ACG, Goita D, Dembele M, Polis MA, Warfield J, Belson M, Dao S, Orsega S, Murphy RL, Diallo S, Siddiqui S. Establishing Reference Ranges of Hematological Parameters from Malian Healthy Adults. JOURNAL OF BLOOD & LYMPH 2017; 7:154. [PMID: 29423342 PMCID: PMC5800422 DOI: 10.4172/2165-7831.1000154] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
INTRODUCTION Measurement of immuno-hematological parameters has been historically helpful in the diagnosis and treatment monitoring of many infectious diseases and cancers. However, these parameters have not yet been established in many developing countries where patient care strongly relies on such low-cost tests. This study describes the immuno-hematological parameter ranges for Malian healthy adults. METHODS A cross sectional study was conducted from August 2004 to May 2013. We included 213 healthy volunteers (173 male and 40 female), aged between 18-59 years. Median, 2.5 and 97.5 percentile ranges for each immuno-hematological parameter are presented. RESULTS In our study population, the hematological parameters' ranges were mostly different to the universal established ranges. We found in our population a Median white blood cell (WBC) count of 5200 cells/μL [3237.5-11900], Red Blood Cell (RBC) count of 4.94 10^6 [3.56-6.17], hemoglobin (Hb) of 14.2 g/dL [12.2-17.38], platelet count (Plt) of 275 10^3/μL [145.4-614.4], lymphocytes 2050/μL [1200-3800], neutrophils 2200/μL [1040-6220]; monocytes 200/μL [100-660]; eosinophils 131/μL [0-1026]; CD4 902 cells/μL [444-1669] and CD8 485 cells/μL [0-1272]. We found significant gender differences in RBC, Hb level and MPV. However, RBC and Hb were higher in males median values compared to females (median values) (p<0.001), whereas the Mean platelet volume lower values (MPV) in males than females (P<0.047). The hemoglobin level for some West African countries (Mali, Burkina Faso, Togo, and Nigeria) ranged from 13.5 to 15.1 g/dL for males and 12 to 13 g/dL for females. However in East and Southern Africa, the values were anywhere from 14.1 to 16.1 for males and 11.2 to 14.4 for females. CONCLUSION Our data may help physicians to better define hematological abnormalities in patients. They may also be used to define new "normal hematological values" in Malian population or in the whole West African population.
Collapse
Affiliation(s)
- B Kone
- University of Sciences, Techniques and Technologies of Bamako, Mali
| | - M Maiga
- University of Sciences, Techniques and Technologies of Bamako, Mali
- Leidos Biomedical Research, Inc., in support to NIAID, Bethesda, Maryland, USA
- Northwestern University, Chicago, Illinois, USA
| | - B Baya
- University of Sciences, Techniques and Technologies of Bamako, Mali
| | - YDS Sarro
- University of Sciences, Techniques and Technologies of Bamako, Mali
| | - N Coulibaly
- University of Sciences, Techniques and Technologies of Bamako, Mali
| | - A Kone
- University of Sciences, Techniques and Technologies of Bamako, Mali
| | - B Diarra
- University of Sciences, Techniques and Technologies of Bamako, Mali
| | - M Sanogo
- University of Sciences, Techniques and Technologies of Bamako, Mali
| | - ACG Togo
- University of Sciences, Techniques and Technologies of Bamako, Mali
| | - D Goita
- University of Sciences, Techniques and Technologies of Bamako, Mali
| | - M Dembele
- University of Sciences, Techniques and Technologies of Bamako, Mali
| | - MA Polis
- National Institute of Allergic and Infectious Diseases (NIAID), Bethesda, Maryland, USA
| | - J Warfield
- Leidos Biomedical Research, Inc., in support to NIAID, Bethesda, Maryland, USA
| | - M Belson
- National Institute of Allergic and Infectious Diseases (NIAID), Bethesda, Maryland, USA
| | - S Dao
- University of Sciences, Techniques and Technologies of Bamako, Mali
| | - S Orsega
- National Institute of Allergic and Infectious Diseases (NIAID), Bethesda, Maryland, USA
| | - RL Murphy
- Northwestern University, Chicago, Illinois, USA
| | - S Diallo
- University of Sciences, Techniques and Technologies of Bamako, Mali
| | - S Siddiqui
- National Institute of Allergic and Infectious Diseases (NIAID), Bethesda, Maryland, USA
| |
Collapse
|
42
|
Lymphocyte expansion after unrelated cord blood allogeneic stem cell transplantation in adults. Bone Marrow Transplant 2017; 52:854-858. [PMID: 28134920 DOI: 10.1038/bmt.2016.364] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 11/22/2016] [Accepted: 12/06/2016] [Indexed: 11/09/2022]
Abstract
Limited information is available regarding the incidence and features of lymphocyte expansions after allogeneic hematopoietic stem cell transplantation (allo-HSCT). Large granular lymphocytes (LGL) expansions have been reported after bone marrow or peripheral blood, but not after unrelated cord blood (UCB) allo-HSCT, associated with indolent clinical courses and favorable outcomes. Here, we considered 85 recipients of UCB allo-HSCT to more broadly define the impact of lymphocytosis, not limited to LGL. Sustained lymphocytosis was observed in 21 (25%) patients at a median onset of 12.6 months and with a median duration of 12 months. Immunophenotypic analysis showed predominantly CD8+ T and/or polyclonal B-cell expansions. Three patients only had monoclonal T-cell expansion. CMV reactivation was significantly more frequent in the group of patients with lymphocytosis (76% vs 28%, P=0.0001), but was not associated with survival. Conversely, 2-year disease-free survival and overall survival were significantly higher for lymphocytosis patients (85% vs 55%, P=0.01 and 85% vs 63%, P=0.03, respectively). In conclusion, expansion of T or B lymphocytes after UCB allo-HSCT in adults is not a rare event. Although occurring relatively late after transplant, this feature is predictive of a better outcome for the patients.
Collapse
|
43
|
Trimoreau F, Galoisy AC, Geneviève F, Bardet V, Cornet E, Hurst JP, Lesesve JF, Leymarie V, Lusina D, Perez B, Cahn JY, Damaj G, Ugo V, Troussard X. Harmonisation of full blood count reports, recommendations of the French-speaking cellular haematology group (GFHC). J Clin Pathol 2016; 70:395-402. [DOI: 10.1136/jclinpath-2016-204001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Revised: 09/05/2016] [Accepted: 09/15/2016] [Indexed: 11/03/2022]
|
44
|
Nadif R, Siroux V, Boudier A, le Moual N, Just J, Gormand F, Pison C, Matran R, Pin I. Blood granulocyte patterns as predictors of asthma phenotypes in adults from the EGEA study. Eur Respir J 2016; 48:1040-1051. [PMID: 27492832 DOI: 10.1183/13993003.00336-2016] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Accepted: 06/13/2016] [Indexed: 12/25/2022]
Abstract
To what extent blood granulocyte patterns may predict asthma control remains under-studied. Our aim was to study associations between blood neutrophilia and eosinophilia and asthma control outcomes in adults.Analyses were conducted in 474 asthmatics from the first follow-up of the Epidemiological Study on the Genetics and Environment of Asthma (EGEA2), including 242 asthmatics who were adults a decade earlier (EGEA1). At EGEA2, asthma control was assessed using the Global Initiative for Asthma definition (2015), and asthma exacerbations by use of urgent care or courses of oral corticosteroids in the past year. Blood EOSlo/EOShi was defined as </≥250 eosinophils·mm-3, respectively, and NEUlo/NEUhi as </≥5000 neutrophils·mm-3, respectively. Estimates were adjusted for age, sex and smoking.At EGEA2, NEUhi was associated with asthma exacerbations and poor asthma control (OR >2.10). EOShi was associated with higher bronchial hyperresponsiveness (BHR) (OR (95% CI) 2.21 (1.24-3.97)), poor lung function (p=0.02) and higher total IgE level (p=0.002). Almost 50% of asthmatics had a persistent pattern between surveys. Persistent NEUhi was associated with poor asthma control at EGEA2 (OR (95% CI) 3.09 (1.18-7.05)). EOShi at EGEA1 and persistent EOShi were associated with higher BHR (OR (95% CI) 2.36 (1.10-5.07) and 3.85 (1.11-13.34), respectively), poor lung function (p<0.06) and higher immunoglobulin E level (p<10-4) at EGEA2.Granulocyte patterns were differently associated with asthma outcomes, suggesting specific roles for each one, which could be tested as predictive signatures.
Collapse
Affiliation(s)
- Rachel Nadif
- INSERM, U1168, VIMA: Ageing and Chronic Diseases, Epidemiological and Public Health Approaches, Villejuif, France Univ Versailles St-Quentin-en-Yvelines, UMR-S 1168, Montigny le Bretonneux, France
| | - Valérie Siroux
- INSERM, IAB, Team of Environmental Epidemiology Applied to Reproduction and Respiratory Health, Grenoble, France Univ Grenoble Alpes, Grenoble, France CHU de Grenoble, Pédiatrie, Grenoble, France
| | - Anne Boudier
- INSERM, IAB, Team of Environmental Epidemiology Applied to Reproduction and Respiratory Health, Grenoble, France Univ Grenoble Alpes, Grenoble, France CHU de Grenoble, Pédiatrie, Grenoble, France
| | - Nicole le Moual
- INSERM, U1168, VIMA: Ageing and Chronic Diseases, Epidemiological and Public Health Approaches, Villejuif, France Univ Versailles St-Quentin-en-Yvelines, UMR-S 1168, Montigny le Bretonneux, France
| | - Jocelyne Just
- Centre de l'Asthme et des Allergies, APHP, Hôpital Trousseau, UMPC Paris 6, Paris, France
| | | | - Christophe Pison
- Clinique Universitaire de Pneumologie, Pôle Thorax et Vaisseaux, CHU Grenoble, Grenoble, France INSERM U1055, Grenoble, France Univ Grenoble Alpes, Grenoble, France
| | | | - Isabelle Pin
- INSERM, IAB, Team of Environmental Epidemiology Applied to Reproduction and Respiratory Health, Grenoble, France Univ Grenoble Alpes, Grenoble, France CHU de Grenoble, Pédiatrie, Grenoble, France
| |
Collapse
|
45
|
Abstract
There are clear age-related changes in platelet count and function, driven by changes in hematopoietic tissue, the composition of the blood and vascular health. Platelet count remains relatively stable during middle age (25–60 years old) but falls in older people. The effect of age on platelet function is slightly less clear. The longstanding view is that platelet reactivity increases with age in an almost linear fashion. There are, however, serious limitations to the data supporting this dogma. We can conclude that platelet function increases during middle age, but little evidence exists on the changes in platelet responsiveness in old age (>75 years old). This change in platelet function is driven by differential mRNA and microRNA expression, an increase in oxidative stress and changes in platelet receptors. These age-related changes in platelets are particularly pertinent given that thrombotic disease and use of anti-platelet drugs is much more prevalent in the elderly population, yet the majority of platelet research is carried out in young to middle-aged (20–50 years old) human volunteers and young mice (2–6 months old). We know relatively little about exactly how platelets from people over 75 years old differ from those of middle-aged subjects, and we know even less about the mechanisms that drive these changes. Addressing these gaps in our knowledge will provide substantial understanding in how cell signalling changes during ageing and will enable the development of more precise anti-platelet therapies.
Collapse
Affiliation(s)
- Chris I Jones
- Institute for Cardiovascular and Metabolic Research, School of Biological Sciences, University of Reading, Harborne Building, Whiteknights, Reading, Berkshire, RG6 6AS, UK.
| |
Collapse
|
46
|
Geara C, Cornet E, Troussard X. Comparative study of quantitative performances between the new Sysmex XN-L (XN-550) haematology analyser and the XN-9000 in a routine laboratory. Int J Lab Hematol 2015; 38:e10-1. [PMID: 26508402 DOI: 10.1111/ijlh.12441] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- C Geara
- Laboratory of Haematology, CHU Caen, Caen, France
| | - E Cornet
- Laboratory of Haematology, CHU Caen, Caen, France.
| | - X Troussard
- Laboratory of Haematology, CHU Caen, Caen, France
| |
Collapse
|
47
|
Yahav D, Schlesinger A, Daitch V, Akayzen Y, Farbman L, Abu-Ghanem Y, Paul M, Leibovici L. Presentation of infection in older patients--a prospective study. Ann Med 2015; 47:354-8. [PMID: 25856541 DOI: 10.3109/07853890.2015.1019915] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Traditional wisdom suggests that infections in older patients have atypical presentation, including blunted febrile response. Data are scarce. DESIGN We analyzed data from a prospectively collected database on presentation of infection in 4,308 patients, and compared the presentation of older patients (≥ 75 years) versus adults (< 75 years). SETTINGS Single tertiary medical center. PARTICIPANTS Patients admitted with suspected bacterial infection during 2002-2004 and 2010-2011. MEASUREMENTS We evaluated clinical presentation on day of admission, including vital signs and laboratory parameters. RESULTS No difference in fever values as a presenting sign of infection was found between older patients and adults (median fever 38.3°C, interquartile range [IQR] 37.4-39.0°C; and 38.4°C, IQR 37.3-39.0°C, respectively, P = 0.08). Median leukocyte count was significantly higher in older patients (median 11.60, IQR 8.30-15.72 in older patients; 10.84, 7.50-15.00 in adults, P < 0.001). Presentation with septic shock, acute renal failure, and reduced consciousness was significantly more common in older patients. These findings were also consistent in the subgroups of bacteremic patients and patients with microbiologically documented infection. CONCLUSION Elevated fever and leukocytosis were found to be at least equally common in older patients compared to younger adults as part of the presentation of infection.
Collapse
Affiliation(s)
- Dafna Yahav
- Unit of Infectious Diseases, Rabin Medical Center, Beilinson Hospital , Petah-Tikva , Israel
| | | | | | | | | | | | | | | |
Collapse
|
48
|
Lee J, Kim SY, Lee W, Han K, Sung IK. Cell population data in neonates: differences by age group and associations with perinatal factors. Int J Lab Hematol 2015; 37:606-12. [PMID: 25944264 DOI: 10.1111/ijlh.12366] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Accepted: 02/25/2015] [Indexed: 11/30/2022]
Abstract
INTRODUCTION Cell population data (CPD) describe physical parameters of white blood cell subpopulations and are reported to be of some value in the diagnosis of sepsis in neonates. Before using the CPD for diagnosing sepsis, the baseline features of the CPD distribution in healthy neonates should be clarified. The aim of this study was to compare the CPD distributions of healthy neonates and other age groups and to identify perinatal factors that are associated with changes in the CPD distribution of healthy neonates. METHODS The CPD distribution of 69 samples from term neonates was compared with adolescents and adults. The CPD distribution of 163 samples from healthy neonates was analyzed in association with perinatal factors, including gestational age, chronologic age, birthweight, delivery mode, premature rupture of membranes, diabetes, and pregnancy-induced hypertension. RESULTS The CPD distribution for term neonates was significantly different from those in adolescents and adults. The mean lymphocyte volume showed a negative correlation with gestational age at birth (r = -0.305; P < 0.01). The mean neutrophil volume was smaller in the cesarean section group than in the normal delivery group. The small for gestational age (SGA) group had smaller mean neutrophil volume and mean monocyte volume than the appropriate for gestational age group. CONCLUSION The CPD distribution of healthy neonates differed from those of adolescents or adults, and the differences were associated with gestational age, delivery mode, and being SGA.
Collapse
Affiliation(s)
- J Lee
- Department of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - S Y Kim
- Department of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - W Lee
- Department of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - K Han
- Department of Laboratory Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - I K Sung
- Department of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul, Korea
| |
Collapse
|
49
|
Cornet E, Boubaya M, Troussard X. Contribution of the new XN-1000 parameters NEUT-RI and NEUT-WY for managing patients with immature granulocytes. Int J Lab Hematol 2015; 37:e123-6. [PMID: 25923650 DOI: 10.1111/ijlh.12372] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- E Cornet
- Laboratory of Haematology, CHU Caen, Caen, France. .,Medical School, University of Caen, Caen, France.
| | - M Boubaya
- Avicenne Hospital, Unité de Recherche Clinique, Bobigny, France
| | - X Troussard
- Laboratory of Haematology, CHU Caen, Caen, France.,Medical School, University of Caen, Caen, France
| |
Collapse
|