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Kechagias KS, Laleye JD, Drmota J, Geropoulos G, Kyrtsonis G, Zafeiri M, Triantafyllidis KK, Stathi D. Minimal change disease following COVID-19 vaccination: A systematic review. PLoS One 2024; 19:e0297568. [PMID: 38442131 PMCID: PMC10914286 DOI: 10.1371/journal.pone.0297568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 01/04/2024] [Indexed: 03/07/2024] Open
Abstract
BACKGROUND The newly developed COVID-19 vaccines are highly effective and safe. However, a small portion of vaccine recipients experience a wide range of adverse events. Recently, glomerular disease, including the development of Minimal Change Disease (MCD), has been observed after administration of different COVID-19 vaccines, although causality remains a matter of debate. AIM The aim of this systematic review was to comprehensively examine the available literature and provide an overview of reported cases of MCD following vaccination against SARS-CoV-2. RESULTS We identified 46 eligible articles which included 94 cases with MCD following COVID-19 vaccination of which one case was reported twice due to a second relapse. Fifty-five participants were males (59.1%, 55/93) and 38 (40.9%, 38/93) were females with a mean age of 45.02 years (SD:20.95). From the included patients 50 (50/94, 53.1%) were described as new-onset and 44 (46.9%, 44/94) as relapse. On average, symptomatology developed 16.68 days (SD: 22.85) after the administration of the vaccine irrespective of the dose. Data about symptoms was reported in 68 cases with the most common being oedema (80.8%, 55/68), followed by weight gain (26.5%, 18/68) and hypertension (16.1%, 11/68). In terms of outcome, more than half of the patients went into remission (61%, 57/94), while 18 recovered or improved post treatment (19.1%, 18/94). Two people relapsed after treatment (2.1%, 2/94) and two cases (2.1%, 2/94) were reported as not recovered. CONCLUSION MCD is possibly a condition clinicians may see in patients receiving COVID-19 vaccines. Although this adverse event is uncommon, considering the limited published data and the absence of confirmed causality, increased clinical awareness is crucial for the early recognition and optimal management of these patients.
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Affiliation(s)
- Konstantinos S. Kechagias
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, United Kingdom
| | - Joshua D. Laleye
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, United Kingdom
| | - Jan Drmota
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, United Kingdom
| | | | - Georgios Kyrtsonis
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, United Kingdom
| | - Marina Zafeiri
- School of Cardiovascular Medicine and Sciences, King’s College London, London, United Kingdom
| | | | - Dimitra Stathi
- Department of Endocrinology and Diabetes, King’s College Hospital NHS Foundation Trust, London, United Kingdom
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Kechagias KS, Triantafyllidis KK, Zouridaki G, Savvidou M. Obstetric and neonatal outcomes in pregnant women with idiopathic polyhydramnios: a systematic review and meta-analysis. Sci Rep 2024; 14:5296. [PMID: 38438422 PMCID: PMC10912321 DOI: 10.1038/s41598-024-54840-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Accepted: 02/17/2024] [Indexed: 03/06/2024] Open
Abstract
Although the assessment of the amniotic fluid volume in pregnancy is part of the fetal wellbeing surveillance, the impact of idiopathic polyhydramnios (IP) on maternal and perinatal outcomes in unknown. The aim of this meta-analysis was to investigate the association of IP with different maternal and perinatal outcomes. We screened five electronic databases until December 2023 and performed data extraction and quality assessment using ROBINS-E in duplicates. Pooled risk ratios and 95% confidence intervals (95% CI) were calculated with a random effects model. 38 studies were included. Patients with IP were at increased risk of perinatal complications including preterm delivery (RR 1.96, 95% CI 1.35-2.86; I2 = 92%), placental abruption (RR 3.20, 95% CI 2.20-4.65; I2 = 2%), delivery via caesarean section (RR 1.60, 95% CI 1.39-1.84; I2 = 95%) and postpartum haemorrhage (RR 1.98, 95% CI 1.22-3.22; I2 = 84%). Similarly, IP was associated with increased risk of adverse perinatal outcomes including low APGAR score (RR 3.0, 95% CI 1.23-7.35; I2 = 95%), stillbirth (RR 4.75, 95% CI 2.54-8.86; I2 = 9%) and perinatal mortality (RR 4.75, 95% CI 2.67-8.48; I2 = 37%). This meta-analysis suggests that pregnant women with IP may be at increased risk of perinatal complications and adverse neonatal outcomes. However, data remains inconclusive considering the low quality and high heterogeneity of included studies.PROSPERO registration number: CRD42022359944.
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Affiliation(s)
- Konstantinos S Kechagias
- Department of Metabolism, Digestion and Reproduction & Department of Surgery and Cancer, Faculty of Medicine, IRDB, Imperial College London, Hammersmith Campus, Du Cane Road, 3rd Floor, London, W12 0NN, UK.
| | | | - Georgia Zouridaki
- Department of Metabolism, Digestion and Reproduction & Department of Surgery and Cancer, Faculty of Medicine, IRDB, Imperial College London, Hammersmith Campus, Du Cane Road, 3rd Floor, London, W12 0NN, UK
| | - Makrina Savvidou
- Department of Metabolism, Digestion and Reproduction & Department of Surgery and Cancer, Faculty of Medicine, IRDB, Imperial College London, Hammersmith Campus, Du Cane Road, 3rd Floor, London, W12 0NN, UK
- Fetal Medicine Unit, Department of Obstetrics and Gynaecology, Chelsea and Westminster Hospital, London, UK
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Geropoulos G, Moschonas S, Fanariotis G, Koltsida A, Madouros N, Koumadoraki E, Katsikas Triantafyllidis K, Kechagias KS, Koimtzis G, Giannis D, Notopoulos A, Pavlidis ET, Psarras K. Anastomotic Leak and Perioperative Outcomes of Esophagectomy for Esophageal Cancer during the COVID-19 Pandemic: A Systematic Review and Meta-Analysis. Medicina (Kaunas) 2023; 60:31. [PMID: 38256292 PMCID: PMC10818348 DOI: 10.3390/medicina60010031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 11/27/2023] [Accepted: 12/18/2023] [Indexed: 01/24/2024]
Abstract
Background and Objectives: The coronavirus disease-2019 (COVID-19) pandemic influenced the healthcare system tremendously, as well as the number of elective surgical procedures worldwide. The aim of this study is to investigate the COVID-19 pandemic's impact on esophagectomies. Materials and Methods: The MEDLINE (via PubMed), Cochrane Library, and Google Scholar bibliographical databases were systematically searched. Original clinical studies investigating the outcomes of esophageal cancer surgery during the COVID-19 pandemic were deemed eligible. After exclusion criteria were applied, eight studies were considered eligible for inclusion. Results: Eight studies with non-overlapping populations, reporting on patients undergoing esophagectomy for resectable esophageal cancer during the COVID-19 pandemic, were included in our analysis, with a total of 18548 patients. Background characteristics for age, lung disease, smoking history as well as Body Mass Index and age were equal among the groups. The background of diabetes presented a statistically significant difference among the groups. Perioperative outcomes like reoperation rates, the length of intensive care unit stay, or readmission rates were not significantly increased during the pandemic. The 30-day readmission, and 30- and 90-day mortality were not affected either. The length of hospital stay was significantly lower in the non-pandemic period. Conclusions: The results of our study support the evidence that in the context of the COVID-19 pandemic, esophageal cancer operations took place safely and effectively, similarly to the standards of the non-COVID-19 era.
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Affiliation(s)
- Georgios Geropoulos
- Second Surgical Propedeutic Department, Hippocration Hospital, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - Stavros Moschonas
- Surgery Working Group, Society of Junior Doctors, 15123 Athens, Greece; (S.M.); (A.K.); (E.K.)
| | - Georgios Fanariotis
- Surgery Working Group, Society of Junior Doctors, 15123 Athens, Greece; (S.M.); (A.K.); (E.K.)
| | - Aggeliki Koltsida
- Surgery Working Group, Society of Junior Doctors, 15123 Athens, Greece; (S.M.); (A.K.); (E.K.)
| | - Nikolaos Madouros
- Surgery Working Group, Society of Junior Doctors, 15123 Athens, Greece; (S.M.); (A.K.); (E.K.)
| | - Evgenia Koumadoraki
- Surgery Working Group, Society of Junior Doctors, 15123 Athens, Greece; (S.M.); (A.K.); (E.K.)
| | | | - Konstantinos S. Kechagias
- Department of Obstetrics and Gynaecology, The Hillingdon Hospitals NHS Foundation Trust, Uxbridge UB8 3NN, UK
| | - Georgios Koimtzis
- Department of General Surgery, University Hospital of Wales, Cardiff and Vale University Health Board, Cardiff CF14 4XW, UK;
| | - Dimitrios Giannis
- Department of Surgery, Flushing Hospital Medical Center, Flushing, NY 11355, USA;
| | - Athanasios Notopoulos
- Department of Nuclear Medicine, Hippocration Hospital, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - Efstathios T. Pavlidis
- Second Surgical Propedeutic Department, Hippocration Hospital, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - Kyriakos Psarras
- Second Surgical Propedeutic Department, Hippocration Hospital, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
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Stathi D, Triantafyllidis KK, Zafeiri M, Karalliedde J, Kechagias KS. COVID-19 induced type 1 diabetes: A systematic review of case reports and series. J Int Med Res 2023; 51:3000605231210403. [PMID: 37940619 PMCID: PMC10637179 DOI: 10.1177/03000605231210403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 10/11/2023] [Indexed: 11/10/2023] Open
Abstract
AIMS To provide an overview of reported cases of new-onset type 1 diabetes mellitus (T1D) following COVID-19 infection. METHODS PubMed and Scopus library databases were screened for relevant case reports published between January 2020 and June 2022. Study design, geographic region or language were not restricted. RESULTS Twenty studies were identified and involved 37 patients (20 [54%] male, 17 [46%] female). Median age was 11.5 years (range 8 months-33 years) and 31 (84%) patients were aged ≤17 years. Most patients (33, 89%) presented with diabetic ketoacidosis (DKA). In total, 23 (62%) patients presented at the time of positive COVID-19 testing and 14 (38%) had symptoms consistent with COVID-19 infection or a previous positive test (1-56 days). Diabetes symptomatology was provided in 22 cases and (19, 86%) reported polyuria, polydipsia, polyphagia, fatigue, or weight loss or a combination of the aforementioned in the preceding weeks (3 days-12 weeks). Of the 28 patients that had data on acute and long-term treatment, all recovered well and most were managed with basal bolus insulin regimens. Quality assessment showed that most reports were either 'good' or 'moderate quality'. CONCLUSIONS Although uncommon, new-onset T1D is a condition healthcare professionals may expect to see following a COVID-19 infection.
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Affiliation(s)
- Dimitra Stathi
- Department of Endocrinology and Diabetes, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | | | - Marina Zafeiri
- School of Cardiovascular Medicine and Sciences, King’s College London, London, UK
| | - Janaka Karalliedde
- Department of Endocrinology and Diabetes, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Konstantinos S. Kechagias
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, UK
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Prokopidis K, Giannos P, Triantafyllidis KK, Kechagias KS, Forbes SC, Candow DG. Author's reply: Letter to the Editor: Double counting due to inadequate statistics leads to false-positive findings in "Effects of creatine supplementation on memory in healthy individuals: a systematic review and meta-analysis of randomized controlled trials". Nutr Rev 2023; 81:1497-1500. [PMID: 36644912 DOI: 10.1093/nutrit/nuac111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Affiliation(s)
- Konstantinos Prokopidis
- is with the Department of Musculoskeletal Biology, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool, UK
- are with the Society of Meta-Research and Biomedical Innovation, London, UK
| | - Panagiotis Giannos
- are with the Society of Meta-Research and Biomedical Innovation, London, UK
- is with the Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London, UK
| | - Konstantinos K Triantafyllidis
- are with the Society of Meta-Research and Biomedical Innovation, London, UK
- is with the Department of Nutrition & Dietetics, Musgrove Park Hospital, Taunton & Somerset NHS Foundation Trust, Taunton, UK
| | - Konstantinos S Kechagias
- are with the Society of Meta-Research and Biomedical Innovation, London, UK
- is with the Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, and the Department of Obstetrics & Gynaecology, Chelsea and Westminster Hospital NHS Foundation Trust, London, UK
| | - Scott C Forbes
- is with the Department of Physical Education Studies, Faculty of Education, Brandon University, Brandon, Manitoba, Canada
| | - Darren G Candow
- is with the Faculty of Kinesiology and Health Studies, University of Regina, Regina, Saskatchewan, Canada
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Bowden SJ, Doulgeraki T, Bouras E, Markozannes G, Athanasiou A, Grout-Smith H, Kechagias KS, Ellis LB, Zuber V, Chadeau-Hyam M, Flanagan JM, Tsilidis KK, Kalliala I, Kyrgiou M. Risk factors for human papillomavirus infection, cervical intraepithelial neoplasia and cervical cancer: an umbrella review and follow-up Mendelian randomisation studies. BMC Med 2023; 21:274. [PMID: 37501128 PMCID: PMC10375747 DOI: 10.1186/s12916-023-02965-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 06/27/2023] [Indexed: 07/29/2023] Open
Abstract
BACKGROUND Persistent infection by oncogenic human papillomavirus (HPV) is necessary although not sufficient for development of cervical cancer. Behavioural, environmental, or comorbid exposures may promote or protect against malignant transformation. Randomised evidence is limited and the validity of observational studies describing these associations remains unclear. METHODS In this umbrella review, we searched electronic databases to identify meta-analyses of observational studies that evaluated risk or protective factors and the incidence of HPV infection, cervical intra-epithelial neoplasia (CIN), cervical cancer incidence and mortality. Following re-analysis, evidence was classified and graded based on a pre-defined set of statistical criteria. Quality was assessed with AMSTAR-2. For all associations graded as weak evidence or above, with available genetic instruments, we also performed Mendelian randomisation to examine the potential causal effect of modifiable exposures with risk of cervical cancer. The protocol for this study was registered on PROSPERO (CRD42020189995). RESULTS We included 171 meta-analyses of different exposure contrasts from 50 studies. Systemic immunosuppression including HIV infection (RR = 2.20 (95% CI = 1.89-2.54)) and immunosuppressive medications for inflammatory bowel disease (RR = 1.33 (95% CI = 1.27-1.39)), as well as an altered vaginal microbiome (RR = 1.59 (95% CI = 1.40-1.81)), were supported by strong and highly suggestive evidence for an association with HPV persistence, CIN or cervical cancer. Smoking, number of sexual partners and young age at first pregnancy were supported by highly suggestive evidence and confirmed by Mendelian randomisation. CONCLUSIONS Our main analysis supported the association of systemic (HIV infection, immunosuppressive medications) and local immunosuppression (altered vaginal microbiota) with increased risk for worse HPV and cervical disease outcomes. Mendelian randomisation confirmed the link for genetically predicted lifetime smoking index, and young age at first pregnancy with cervical cancer, highlighting also that observational evidence can hide different inherent biases. This evidence strengthens the need for more frequent HPV screening in people with immunosuppression, further investigation of the vaginal microbiome and access to sexual health services.
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Affiliation(s)
- Sarah J Bowden
- Department of Metabolism, Digestion and Reproduction and Department of Surgery and Cancer, Institute of Reproductive and Developmental Biology, Faculty of Medicine, Imperial College London, Hammersmith Hospital campus, London, W12 0HS, UK.
- Queen Charlotte's and Chelsea - Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, UK.
| | - Triada Doulgeraki
- Queen Charlotte's and Chelsea - Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Emmanouil Bouras
- Department of Hygiene and Epidemiology, University of Ioannina School of Medicine, Ioannina, Greece
| | - Georgios Markozannes
- Department of Hygiene and Epidemiology, University of Ioannina School of Medicine, Ioannina, Greece
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, UK
| | - Antonios Athanasiou
- Department of Metabolism, Digestion and Reproduction and Department of Surgery and Cancer, Institute of Reproductive and Developmental Biology, Faculty of Medicine, Imperial College London, Hammersmith Hospital campus, London, W12 0HS, UK
| | - Harriet Grout-Smith
- Department of Metabolism, Digestion and Reproduction and Department of Surgery and Cancer, Institute of Reproductive and Developmental Biology, Faculty of Medicine, Imperial College London, Hammersmith Hospital campus, London, W12 0HS, UK
| | - Konstantinos S Kechagias
- Department of Metabolism, Digestion and Reproduction and Department of Surgery and Cancer, Institute of Reproductive and Developmental Biology, Faculty of Medicine, Imperial College London, Hammersmith Hospital campus, London, W12 0HS, UK
| | - Laura Burney Ellis
- Department of Metabolism, Digestion and Reproduction and Department of Surgery and Cancer, Institute of Reproductive and Developmental Biology, Faculty of Medicine, Imperial College London, Hammersmith Hospital campus, London, W12 0HS, UK
- Queen Charlotte's and Chelsea - Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Verena Zuber
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, UK
| | - Marc Chadeau-Hyam
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, UK
| | - James M Flanagan
- Department of Surgery and Cancer, Institute of Reproductive and Developmental Biology, Faculty of Medicine, Imperial College London, London, UK
| | - Konstantinos K Tsilidis
- Department of Hygiene and Epidemiology, University of Ioannina School of Medicine, Ioannina, Greece
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, UK
| | - Ilkka Kalliala
- Department of Metabolism, Digestion and Reproduction and Department of Surgery and Cancer, Institute of Reproductive and Developmental Biology, Faculty of Medicine, Imperial College London, Hammersmith Hospital campus, London, W12 0HS, UK
- Department of Obstetrics and Gynaecology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Maria Kyrgiou
- Department of Metabolism, Digestion and Reproduction and Department of Surgery and Cancer, Institute of Reproductive and Developmental Biology, Faculty of Medicine, Imperial College London, Hammersmith Hospital campus, London, W12 0HS, UK
- Queen Charlotte's and Chelsea - Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, UK
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Bowden SJ, Ellis LB, Kalliala I, Paraskevaidi M, Tighe J, Kechagias KS, Doulgeraki T, Paraskevaidis E, Arbyn M, Flanagan J, Veroniki A, Kyrgiou M. Protocol for a systematic review and meta-analysis of the diagnostic test accuracy of host and HPV DNA methylation in cervical cancer screening and management. BMJ Open 2023; 13:e071534. [PMID: 37277222 DOI: 10.1136/bmjopen-2022-071534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/07/2023] Open
Abstract
INTRODUCTION Human papillomavirus (HPV) is necessary but not sufficient for cervical cancer development. During cervical carcinogenesis, methylation levels increase across host and HPV DNA. DNA methylation has been proposed as a test to diagnose cervical intraepithelial neoplasia (CIN); we present a protocol to evaluate the accuracy of methylation markers to detect high-grade CIN and cervical cancer. METHODS AND ANALYSIS We will search electronic databases (Medline, Embase and Cochrane Library), from inception, to identify studies examining DNA methylation as a diagnostic marker for CIN or cervical cancer, in a cervical screening population. The primary outcome will be to assess the diagnostic test accuracy of host and HPV DNA methylation for high-grade CIN; the secondary outcomes will be to examine the accuracy of different methylation cut-off thresholds, and accuracy in high-risk HPV positive women. Our reference standard will be histology. We will perform meta-analyses using Cochrane guidelines for diagnostic test accuracy. We will use the number of true positives, false negatives, true negatives and false positives from individual studies. We will use the bivariate mixed effect model to estimate sensitivity and specificity with 95% CIs; we will employ different bivariate models to estimate sensitivity and specificity at different thresholds if sufficient data per threshold. For insufficient data, the hierarchical summary receiver operating curve model will be used to calculate a summary curve across thresholds. If there is interstudy and intrastudy variation in thresholds, we will use a linear mixed effects model to calculate the optimum threshold. If few studies are available, we will simplify models by assuming no correlation between sensitivity and specificity and perform univariate, random-effects meta-analysis. We will assess the quality of studies using QUADAS-2 and QUADAS-C. ETHICS AND DISSEMINATION Ethical approval is not required. Results will be disseminated to academic beneficiaries, medical practitioners, patients and the public. PROSPERO REGISTRATION NUMBER CRD42022299760.
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Affiliation(s)
- Sarah J Bowden
- Department of Surgery & Cancer, Faculty of Medicine, Institute of Reproductive and Developmental Biology, Imperial College, London, UK
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Institute of Reproductive and Developmental Biology, Imperial College, London, UK
| | - Laura Burney Ellis
- Department of Surgery & Cancer, Faculty of Medicine, Institute of Reproductive and Developmental Biology, Imperial College, London, UK
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Institute of Reproductive and Developmental Biology, Imperial College, London, UK
| | - Ilkka Kalliala
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Institute of Reproductive and Developmental Biology, Imperial College, London, UK
- Department of Obstetrics and Gynaecology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Maria Paraskevaidi
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Institute of Reproductive and Developmental Biology, Imperial College, London, UK
| | - Jack Tighe
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Institute of Reproductive and Developmental Biology, Imperial College, London, UK
| | - Konstantinos S Kechagias
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Institute of Reproductive and Developmental Biology, Imperial College, London, UK
| | - Triada Doulgeraki
- Department of Obstetrics & Gynaecology, Ioannina University Hospital, Ioannina, Greece
| | | | - Marc Arbyn
- Unit of Cancer Epidemiology, Belgian Cancer Centre, Brussels, Belgium
| | - James Flanagan
- Department of Surgery & Cancer, Faculty of Medicine, Institute of Reproductive and Developmental Biology, Imperial College, London, UK
| | - Areti Veroniki
- Institute of Health Policy Management and Evaluation, St Michael's Hospital Toronto, Toronto, UK
| | - Maria Kyrgiou
- Department of Surgery & Cancer, Faculty of Medicine, Institute of Reproductive and Developmental Biology, Imperial College, London, UK
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Institute of Reproductive and Developmental Biology, Imperial College, London, UK
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Prokopidis K, Giannos P, Triantafyllidis KK, Kechagias KS, Forbes SC, Candow DG. Effects of creatine supplementation on memory in healthy individuals: a systematic review and meta-analysis of randomized controlled trials. Nutr Rev 2023; 81:416-427. [PMID: 35984306 PMCID: PMC9999677 DOI: 10.1093/nutrit/nuac064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
CONTEXT From an energy perspective, the brain is very metabolically demanding. It is well documented that creatine plays a key role in brain bioenergetics. There is some evidence that creatine supplementation can augment brain creatine stores, which could increase memory. OBJECTIVE A systematic review and meta-analysis of randomized controlled trials (RCTs) was conducted to determine the effects of creatine supplementation on memory performance in healthy humans. DATA SOURCES The literature was searched through the PubMed, Web of Science, Cochrane Library, and Scopus databases from inception until September 2021. DATA EXTRACTION Twenty-three eligible RCTs were initially identified. Ten RCTs examining the effect of creatine supplementation compared with placebo on measures of memory in healthy individuals met the inclusion criteria for systematic review, 8 of which were included in the meta-analysis. DATA ANALYSIS Overall, creatine supplementation improved measures of memory compared with placebo (standard mean difference [SMD] = 0.29, 95%CI, 0.04-0.53; I2 = 66%; P = 0.02). Subgroup analyses revealed a significant improvement in memory in older adults (66-76 years) (SMD = 0.88; 95%CI, 0.22-1.55; I2 = 83%; P = 0.009) compared with their younger counterparts (11-31 years) (SMD = 0.03; 95%CI, -0.14 to 0.20; I2 = 0%; P = 0.72). Creatine dose (≈ 2.2-20 g/d), duration of intervention (5 days to 24 weeks), sex, or geographical origin did not influence the findings. CONCLUSION Creatine supplementation enhanced measures of memory performance in healthy individuals, especially in older adults (66-76 years). SYSTEMATIC REVIEW REGISTRATION PROSPERO registration no. 42021281027.
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Affiliation(s)
- Konstantinos Prokopidis
- is with the Department of Musculoskeletal Biology, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool, United Kingdom
- are with the Society of Meta-Research and Biomedical Innovation, London, United Kingdom
| | - Panagiotis Giannos
- are with the Society of Meta-Research and Biomedical Innovation, London, United Kingdom
- is with the Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London, United Kingdom
| | - Konstantinos K Triantafyllidis
- are with the Society of Meta-Research and Biomedical Innovation, London, United Kingdom
- is with the Department of Nutrition & Dietetics, Musgrove Park Hospital, Taunton & Somerset NHS Foundation Trust, Taunton, United Kingdom
| | - Konstantinos S Kechagias
- are with the Society of Meta-Research and Biomedical Innovation, London, United Kingdom
- is with the Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, United Kingdom
- is with the Department of Obstetrics & Gynaecology, Chelsea and Westminster Hospital NHS Foundation Trust, London, United Kingdom
| | - Scott C Forbes
- is with the Department of Physical Education Studies, Faculty of Education, Brandon University, Brandon, Manitoba, Canada
| | - Darren G Candow
- is with the Faculty of Kinesiology and Health Studies, University of Regina, Regina, Saskatchewan, Canada
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Kechagias KS, Zafeiri M, Katsikas Triantafyllidis K, Kyrtsonis G, Geropoulos G, Lyons D, Burney Ellis L, Bowden S, Galani A, Paraskevaidi M, Kyrgiou M. Primary Melanoma of the Cervix Uteri: A Systematic Review and Meta-Analysis of the Reported Cases. Biology 2023; 12:biology12030398. [PMID: 36979090 PMCID: PMC10045237 DOI: 10.3390/biology12030398] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 02/22/2023] [Accepted: 02/27/2023] [Indexed: 03/06/2023]
Abstract
Primary malignant melanoma (MM) of the cervix uteri is a rare and aggressive malignancy of the female reproductive tract. Considering that clinical data on this cancer are scarce, we aimed to comprehensively examine the currently available literature and provide an overview of the reported cases of cervical MM focusing on the clinical characteristics, diagnosis and therapeutic management. We conducted a systematic review of the literature by screening three electronic databases until June 2022. The critical appraisal checklist provided by the Joanna Briggs Institute was employed to evaluate the overall quality of the studies. We included 96 reports, which comprised 137 patients diagnosed with MM of the cervix. The mean age of the patients was 56.5 (median: 58, age range: 33–88). Data regarding menopausal status were provided for 98 patients with 15 being premenopausal and 83 being postmenopausal. The most common presenting symptom was vaginal bleeding (83%, 100/121). Biopsy (either excisional or punch biopsy) was used as the first diagnostic modality in most of the patients (67%, 64/95), followed by cytology (18%, 17/95). In 74 cases, the FIGO staging system for cervical cancer was used with the most common stage being FIGO stage I (38%, 28/74), followed by FIGO stage II (36%, 27/74), FIGO stage III (19%, 14/74) and FIGO stage IV (7%, 5/74). Most of the patients were managed surgically (90%, 119/131) with a hysterectomy (either radical or total), and a salpingo-oophorectomy with/without lymphadenectomy was the most common approach utilized (40%, 48/119). The data of clinical outcomes were provided for 105 patients, of whom 61 died (58%, 61/105) and 44 survived (42%, 44/105). Knowledge regarding the rare occurrence of MM in the cervix and the increased awareness of clinicians can prevent clinical misdiagnosis and ultimately improve further the clinical outcomes of patients developing this rare malignancy.
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Affiliation(s)
- Konstantinos S. Kechagias
- Society of Meta-Research and Biomedical Innovation, London W12 0FD, UK
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London SW7 2BX, UK
- Correspondence: ; Tel.: +44-7590803194
| | - Marina Zafeiri
- Society of Meta-Research and Biomedical Innovation, London W12 0FD, UK
- King’s College Hospital NHS Foundation Trust, London SE5 9RS, UK
| | - Konstantinos Katsikas Triantafyllidis
- Society of Meta-Research and Biomedical Innovation, London W12 0FD, UK
- Department of Nutrition and Dietetics, Royal Marsden Hospital, London SW3 6JJ, UK
| | - Georgios Kyrtsonis
- Society of Meta-Research and Biomedical Innovation, London W12 0FD, UK
- Department of General Surgery, Croydon University Hospital, Croydon, London CR7 7YE, UK
| | - Georgios Geropoulos
- Department of General Surgery, University College London Hospitals, London NW1 2BU, UK
| | - Deirdre Lyons
- Imperial College Healthcare NHS Trust, London W2 1NY, UK
| | - Laura Burney Ellis
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London SW7 2BX, UK
| | - Sarah Bowden
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London SW7 2BX, UK
- Imperial College Healthcare NHS Trust, London W2 1NY, UK
| | - Apostolia Galani
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London SW7 2BX, UK
| | - Maria Paraskevaidi
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London SW7 2BX, UK
| | - Maria Kyrgiou
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London SW7 2BX, UK
- Imperial College Healthcare NHS Trust, London W2 1NY, UK
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10
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Prokopidis K, Giannos P, Reginster JY, Bruyere O, Petrovic M, Cherubini A, Triantafyllidis KK, Kechagias KS, Dionyssiotis Y, Cesari M, Ibrahim K, Scott D, Barbagallo M, Veronese N. Sarcopenia is associated with a greater risk of polypharmacy and number of medications: a systematic review and meta-analysis. J Cachexia Sarcopenia Muscle 2023; 14:671-683. [PMID: 36781175 PMCID: PMC10067503 DOI: 10.1002/jcsm.13190] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 01/10/2023] [Accepted: 01/16/2023] [Indexed: 02/15/2023] Open
Abstract
Polypharmacy in older adults is associated with multiple negative consequences that may affect muscular function, independently from the presence of medical conditions. The aim of this systematic review and meta-analysis was to investigate the association of sarcopenia with polypharmacy and higher number of medications. A systematic literature search of observational studies using PubMed, Web of Science, Scopus and Cochrane Library databases was conducted from inception until June 2022. To determine if sarcopenia is associated with a higher risk of polypharmacy and increased number of medications, a meta-analysis using a random-effects model was used to calculate the pooled effects (CRD42022337539). Twenty-nine studies were included in the systematic review and meta-analysis. Sarcopenia was associated with a higher prevalence of polypharmacy (odds ratio [OR]: 1.65, 95% confidence interval [CI] [1.23, 2.20], I2 = 84%, P < 0.01) and higher number of medications (mean difference: 1.39, 95% CI [0.59, 2.19], I2 = 95%, P < 0.01) compared with individuals without sarcopenia. Using meta-regression, a high variance was observed due to different populations (i.e., community-dwelling, nursing home residents, inpatients, outpatients) for both outcomes of polypharmacy (r = -0.338, SE = 0.1669, 95% CI [-0.67, -0.01], z = -2.03, P = 0.04) and number of medications (r = 0.589, SE = 0.2615, 95% CI [0.08, 1.10], z = 2.25, P = 0.02). This systematic review and meta-analysis reported a significantly increased risk of polypharmacy and higher number of medications in people with sarcopenia compared with individuals without this condition. Future research should clarify whether the specificity and number of medications is a direct contributor in accelerating the progression of muscle wasting and dysfunction contributing to sarcopenia in older adults.
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Affiliation(s)
- Konstantinos Prokopidis
- Department of Musculoskeletal Biology, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool, UK.,Society of Meta-research and Biomedical Innovation, London, UK
| | - Panagiotis Giannos
- Society of Meta-research and Biomedical Innovation, London, UK.,Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London, UK
| | - Jean Yves Reginster
- WHO Collaborating Center for Epidemiology of Musculoskeletal Health and Aging, Liège, Belgium.,Division of Public Health, Epidemiology and Health Economics, University of Liège, Liège, Belgium
| | - Olivier Bruyere
- Division of Public Health, Epidemiology and Health Economics, WHO Collaborating Center for Public Health Aspects of Musculo-Skeletal Health and Ageing, University of Liège, Liège, Belgium
| | - Mirko Petrovic
- Section of Geriatrics, Department of Internal Medicine and Paediatrics, Ghent University, Ghent, Belgium
| | - Antonio Cherubini
- Geriatria, Accettazione Geriatrica e Centro di Ricerca per l'Invecchiamento, IRCCS INRCA, Ancona, Italy
| | - Konstantinos K Triantafyllidis
- Society of Meta-research and Biomedical Innovation, London, UK.,Department of Nutrition and Dietetics, Homerton University Hospital Foundation Trust, London, UK
| | - Konstantinos S Kechagias
- Society of Meta-research and Biomedical Innovation, London, UK.,Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, UK
| | - Yannis Dionyssiotis
- Medical School, Spinal Cord Injury Rehabilitation Clinic, General University Hospital Patras, University of Patras, Patras, Greece
| | - Matteo Cesari
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy.,Geriatric Unit, IRCCS Istituti Clinici Scientifici Maugeri, Milan, Italy
| | - Kinda Ibrahim
- Academic Geriatric Medicine, Faculty of Medicine, University Hospital Southampton, University of Southampton, Southampton, UK.,Applied Research Collaboration Wessex, The National Institute of Health and Care Research (NIHR), University of Southampton, Southampton, UK
| | - David Scott
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Burwood, Victoria, Australia.,Department of Medicine, School of Clinical Sciences at Monash Health, Monash University, Clayton, Victoria, Australia
| | - Mario Barbagallo
- Department of Internal Medicine and Geriatrics, University of Palermo, Palermo, Italy
| | - Nicola Veronese
- Department of Internal Medicine and Geriatrics, University of Palermo, Palermo, Italy
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11
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Prokopidis K, Giannos P, Kirwan R, Ispoglou T, Galli F, Witard OC, Triantafyllidis KK, Kechagias KS, Morwani-Mangnani J, Ticinesi A, Isanejad M. Impact of probiotics on muscle mass, muscle strength and lean mass: a systematic review and meta-analysis of randomized controlled trials. J Cachexia Sarcopenia Muscle 2023; 14:30-44. [PMID: 36414567 PMCID: PMC9891957 DOI: 10.1002/jcsm.13132] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Revised: 09/27/2022] [Accepted: 10/25/2022] [Indexed: 11/24/2022] Open
Abstract
Probiotics have shown potential to counteract sarcopenia, although the extent to which they can influence domains of sarcopenia such as muscle mass and strength in humans is unclear. The aim of this systematic review and meta-analysis was to explore the impact of probiotic supplementation on muscle mass, total lean mass and muscle strength in human adults. A literature search of randomized controlled trials (RCTs) was conducted through PubMed, Scopus, Web of Science and Cochrane Library from inception until June 2022. Eligible RCTs compared the effect of probiotic supplementation versus placebo on muscle and total lean mass and global muscle strength (composite score of all muscle strength outcomes) in adults (>18 years). To evaluate the differences between groups, a meta-analysis was conducted using the random effects inverse-variance model by utilizing standardized mean differences. Twenty-four studies were included in the systematic review and meta-analysis exploring the effects of probiotics on muscle mass, total lean mass and global muscle strength. Our main analysis (k = 10) revealed that muscle mass was improved following probiotics compared with placebo (SMD: 0.42, 95% CI: 0.10-0.74, I2 = 57%, P = 0.009), although no changes were revealed in relation to total lean mass (k = 12; SMD: -0.03, 95% CI: -0.19 - 0.13, I2 = 0%, P = 0.69). Interestingly, a significant increase in global muscle strength was also observed among six RCTs (SMD: 0.69, 95% CI: 0.33-1.06, I2 = 64%, P = 0.0002). Probiotic supplementation enhances both muscle mass and global muscle strength; however, no beneficial effects were observed in total lean mass. Investigating the physiological mechanisms underpinning different ageing groups and elucidating appropriate probiotic strains for optimal gains in muscle mass and strength are warranted.
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Affiliation(s)
- Konstantinos Prokopidis
- Department of Musculoskeletal Biology, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool, UK.,Society of Meta-research and Biomedical Innovation, London, UK
| | - Panagiotis Giannos
- Society of Meta-research and Biomedical Innovation, London, UK.,Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London, UK
| | - Richard Kirwan
- School of Biological and Environmental Sciences, Liverpool John Moores University, Liverpool, UK
| | | | - Francesco Galli
- Department of Pharmaceutical Sciences, Lipidomics and Micronutrient Vitamins Laboratory and Human Anatomy Laboratory, University of Perugia, Perugia, Italy
| | - Oliver C Witard
- Faculty of Life Sciences and Medicine, Centre for Human and Applied Physiological Sciences, King's College London, London, UK
| | - Konstantinos K Triantafyllidis
- Society of Meta-research and Biomedical Innovation, London, UK.,Department of Nutrition & Dietetics, Musgrove Park Hospital, Taunton & Somerset NHS Foundation Trust, Taunton, UK
| | - Konstantinos S Kechagias
- Society of Meta-research and Biomedical Innovation, London, UK.,Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, UK
| | - Jordi Morwani-Mangnani
- Department of Molecular Epidemiology, Leiden University Medical Center, Leiden, Netherlands
| | - Andrea Ticinesi
- Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Masoud Isanejad
- Department of Musculoskeletal Biology, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool, UK
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12
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Giannos P, Katsikas Triantafyllidis K, Paraskevaidi M, Kyrgiou M, Kechagias KS. Female Dynamics in Authorship of Scientific Publications in the Public Library of Science: A 10-year Bibliometric Analysis of Biomedical Research. Eur J Investig Health Psychol Educ 2023; 13:228-237. [PMID: 36826202 PMCID: PMC9955408 DOI: 10.3390/ejihpe13020018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 01/10/2023] [Accepted: 01/16/2023] [Indexed: 01/22/2023] Open
Abstract
Women are generally underrepresented in science, technology, engineering, and mathematics (STEM). As scientific production reflects scholarly impact and participation in the scientific process, the number of journal publications forms a pertinent measure of academic productivity. This study examined the prevalence and evolution of female representation in prominent author positions across multidisciplinary biomedical research. Publications from seven exemplar cross-specialty journals of the Public Library of Science (PLoS Medicine, PLoS Biology, PLoS One, PLoS Computational Biology, PLoS Genetics, PLoS Pathogens, and PLoS Neglected Tropical Diseases) between January 2010 and December 2020 were extracted from Web of Science. Using Genderize.io, the gender of authors from their first names was estimated using a 75% threshold. The association between female prevalence in first and last authorship and journal was evaluated using a binary logistic regression, and odds ratios were estimated against a 50:50 reference on gender. In 266,739 publications, 43.3% of first authors and 26.7% of last authors were females. Across the ten-year period, female first authorship increased by 19.6% and last authorship by 3.2%. Among all journals, PLoS Neglected Tropical Diseases had the greatest total proportion of female first authors (45.7%) and PLoS Medicine of female last authors (32%), while PLoS Computational Biology had the lowest proportion in these categories (23.7% and 17.2%). First authors were less likely to be females in all PLoS journals (p < 0.05) except for PLoS Neglected Tropical Diseases (odds ratio: 0.84, 95% confidence interval: 0.71-1.00), where the odds of female authorship were not significantly different (p = 0.054). Last authors were not more likely to be females in all PLoS journals (p < 0.001). Overall, women still appear underrepresented as first authors in biomedical publications and their representation as last authors has severely lagged. Efforts towards gender equality in scholarly authorship will contribute to the representation of women in biomedical research and ensure that their potential is not lost.
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Affiliation(s)
- Panagiotis Giannos
- Society of Meta-Research and Biomedical Innovation, London W12 0FD, UK
- Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London SW7 2BX, UK
- Correspondence:
| | - Konstantinos Katsikas Triantafyllidis
- Society of Meta-Research and Biomedical Innovation, London W12 0FD, UK
- Department of Nutrition & Dietetics, Musgrove Park Hospital, Taunton TA1 5DA, UK
| | - Maria Paraskevaidi
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London SW7 2BX, UK
| | - Maria Kyrgiou
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London SW7 2BX, UK
- Institute of Reproductive and Developmental Biology, Imperial College London, London SW7 2BX, UK
- West London Gynaecological Cancer Centre, Imperial College NHS Trust, London W6 8RF, UK
| | - Konstantinos S. Kechagias
- Society of Meta-Research and Biomedical Innovation, London W12 0FD, UK
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London SW7 2BX, UK
- Institute of Reproductive and Developmental Biology, Imperial College London, London SW7 2BX, UK
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13
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Prokopidis K, Giannos P, Katsikas Triantafyllidis K, Kechagias KS, Mesinovic J, Witard OC, Scott D. The authors' reply: 'Comment on: "Effect of vitamin D monotherapy on indices of sarcopenia in community-dwelling older adults: a systematic review and meta-analysis" by Prokopidis et al.'. J Cachexia Sarcopenia Muscle 2022; 13:2757-2758. [PMID: 36082492 PMCID: PMC9745461 DOI: 10.1002/jcsm.13087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Accepted: 08/08/2022] [Indexed: 12/15/2022] Open
Affiliation(s)
- Konstantinos Prokopidis
- Department of Musculoskeletal Biology, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool, UK.,Society of Meta-research and Biomedical Innovation, London, UK
| | - Panagiotis Giannos
- Society of Meta-research and Biomedical Innovation, London, UK.,Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London, UK
| | - Konstantinos Katsikas Triantafyllidis
- Society of Meta-research and Biomedical Innovation, London, UK.,Department of Nutrition & Dietetics, Musgrove Park Hospital, Taunton & Somerset NHS Foundation Trust, Taunton, UK
| | - Konstantinos S Kechagias
- Society of Meta-research and Biomedical Innovation, London, UK.,Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, UK
| | - Jakub Mesinovic
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Burwood, VIC, Australia.,Department of Medicine, School of Clinical Sciences at Monash Health, Monash University, Clayton, VIC, Australia
| | - Oliver C Witard
- Centre for Human and Applied Physiological Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - David Scott
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Burwood, VIC, Australia.,Department of Medicine, School of Clinical Sciences at Monash Health, Monash University, Clayton, VIC, Australia
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14
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Kechagias KS, Katsikas-Triantafyllidis K, Geropoulos G, Giannos P, Zafeiri M, Tariq-Mian I, Paraskevaidi M, Mitra A, Kyrgiou M. Diverticulitis during pregnancy: A review of the reported cases. Front Med (Lausanne) 2022; 9:942666. [PMID: 36438049 PMCID: PMC9691677 DOI: 10.3389/fmed.2022.942666] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 10/21/2022] [Indexed: 03/21/2024] Open
Abstract
BACKGROUND Diverticular disease of the colon represents a common clinical condition in the western world. Its prevalence increases with age and only 5% of cases occur in adults younger than 40 years of age, making it a rare condition during pregnancy. The aim of this review was to provide an overview of the reported cases of diverticulitis during pregnancy. METHODS We conducted a systematic review of the literature based on preferred reporting items for systematic review and meta-analysis (PRISMA) guidelines. We searched three different electronic databases namely PubMed, Scopus and Web of Science from inception to December 2021. Literature search and data extraction were completed in duplicates. RESULTS The initial search yielded 564 articles from which 12 were finally included in our review. Ten articles were case reports and two were observational studies. The mean age of the cases was 34 years. The presenting complain was provided for 11 cases. The majority of the patients (10/11, 91%) presented with abdominal pain located mainly on the left (6/11, 55%) or right (4/11, 36%) iliac fossa. The most common diagnostic modality used for the diagnosis of the condition was ultrasonography in nine cases (9/12, 75%) followed by magnetic resonance imaging (MRI) in two cases (2/12, 17%). In spite of clinical and radiological evaluation, the initial diagnosis was inaccurate in seven cases (7/12, 58%). The therapeutic approach was available for 11 cases and it was based on the administration of intravenous antibiotics in six cases (6/11, 55%) and surgical management in five cases (5/11, 45%). Data for the type of delivery was provided in nine studies with five patients (5/9, 56%) delivering vaginally and four patients (4/9, 44%) delivering with cesarean section. CONCLUSION As advanced maternal age becomes more common, the frequency of diverticulitis in pregnancy may increase. Although available guidelines do not exist, the clinical awareness, early recognition of the disorder, using diagnostic modalities such as ultrasound and MRI, and rapid therapeutic approach with antibiotics, may improve maternal and neonatal outcomes.
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Affiliation(s)
- Konstantinos S. Kechagias
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, United Kingdom
- Society of Meta-Research and Biomedical Innovation, London, United Kingdom
| | | | - Georgios Geropoulos
- Department of General Surgery, NHS Foundation Trust, Royal Marsden Hospital, London, United Kingdom
| | - Panagiotis Giannos
- Society of Meta-Research and Biomedical Innovation, London, United Kingdom
- Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London, United Kingdom
| | - Marina Zafeiri
- Society of Meta-Research and Biomedical Innovation, London, United Kingdom
| | - Imran Tariq-Mian
- Society of Meta-Research and Biomedical Innovation, London, United Kingdom
| | - Maria Paraskevaidi
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, United Kingdom
| | - Anita Mitra
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, United Kingdom
| | - Maria Kyrgiou
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, United Kingdom
- Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London, United Kingdom
- Imperial College Healthcare NHS Trust, London, United Kingdom
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15
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Fornasiero M, Geropoulos G, Kechagias KS, Psarras K, Katsikas Triantafyllidis K, Giannos P, Koimtzis G, Petrou NA, Lucocq J, Kontovounisios C, Giannis D. Anastomotic Leak in Ovarian Cancer Cytoreduction Surgery: A Systematic Review and Meta-Analysis. Cancers (Basel) 2022; 14:cancers14215464. [PMID: 36358882 PMCID: PMC9653973 DOI: 10.3390/cancers14215464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 10/28/2022] [Accepted: 10/29/2022] [Indexed: 11/10/2022] Open
Abstract
Simple Summary Bowel resection is often required to obtain complete removal of ovarian cancer. A major complication of this operation is anastomotic leakage, which has been shown to increase morbidity and mortality in this population. Numerous original research studies have assessed the risk factors for anastomotic leaks. We aimed to conduct a systematic review and meta-analysis to identify statistically significant risk factors. This meta-analysis identified multiple bowel resections as the only significant risk factor. With further research to identify additional risk factors, new management guidelines could be implemented to minimize the risk of anastomotic leaks and improve patient outcomes. Abstract Introduction: Anastomotic leaks (AL) following ovarian cytoreduction surgery could be detrimental, leading to significant delays in commencing adjuvant chemotherapy, prolonged hospital stays and increased morbidity. The aim of this study was to investigate risk factors associated with anastomotic leaks after ovarian cytoreduction surgery. Material and methods: The MEDLINE (via PubMed), Cochrane Library, EMBASE and Scopus bibliographical databases were searched. Original clinical studies investigating risk factors for AL in ovarian cytoreduction surgery were included. Results: Eighteen studies with non-overlapping populations reporting on patients undergoing cytoreduction surgery for ovarian cancer (n = 4622, including 344 cases complicated by AL) were included in our analysis. Patients undergoing ovarian cytoreduction surgery complicated by AL had a significantly higher rate of 30-day mortality but no difference in 60-day mortality. Multiple bowel resections were associated with an increased risk of postoperative AL, while no association was observed with body mass index (BMI), American Society of Anesthesiologists (ASA) score, age, smoking, operative approach (primary versus interval cytoreductive, stapled versus hand-sewn anastomoses and formation of diverting stoma), neoadjuvant chemotherapy and use of hyperthermic intraperitoneal chemotherapy (HIPEC). Discussion: Multiple bowel resections were the only clinical risk factor associated with increased risk for AL after bowel surgery in the ovarian cancer population. The increased 30-day mortality rate in patients undergoing ovarian cytoreduction complicated by AL highlights the need to minimize the number of bowel resections in this population. Further studies are required to clarify any association between neoadjuvant chemotherapy and decreased AL rates.
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Affiliation(s)
| | - Georgios Geropoulos
- 2nd Propaedeutic Department of Surgery, Aristotle University School of Medicine, Hippokration General Hospital, 546 42 Thessaloniki, Greece
- Department of General and Upper GI Surgery, Victoria Hospital Kirkcaldy, Kirkcaldy KY2 5AH, UK
- Correspondence:
| | - Konstantinos S. Kechagias
- Society of Meta-Research and Biomedical Innovation, London W12 0FD, UK
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London SW7 2AZ, UK
| | - Kyriakos Psarras
- 2nd Propaedeutic Department of Surgery, Aristotle University School of Medicine, Hippokration General Hospital, 546 42 Thessaloniki, Greece
| | | | - Panagiotis Giannos
- Society of Meta-Research and Biomedical Innovation, London W12 0FD, UK
- Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London SW7 2AZ, UK
| | | | - Nikoletta A. Petrou
- Department of General Surgery, The Royal Marsden Hospital, London SW3 6JJ, UK
| | - James Lucocq
- Department of Hepaticopancreaticobiliary Surgery, University of Edinburgh, Edinburgh EH8 9YL, UK
| | | | - Dimitrios Giannis
- Department of Surgery, North Shore University Hospital/Long Island Jewish Medical Center, Northwell Health, Manhasset, NY 11030, USA
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY 11549, USA
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16
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Giannos P, Prokopidis K, Lidoriki I, Triantafyllidis KK, Kechagias KS, Celoch K, Candow DG, Ostojic SM, Forbes SC. Medium-chain triglycerides may improve memory in non-demented older adults: a systematic review of randomized controlled trials. BMC Geriatr 2022; 22:817. [PMID: 36273115 PMCID: PMC9588230 DOI: 10.1186/s12877-022-03521-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 10/10/2022] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Ketosis has been exploited for its neuroprotective impact and treatment of neurological conditions via ketone production. Exogenous medium-chain triglyceride (MCT) supplementation may induce nutritional ketosis. The aim of this systematic review is to explore the effects of MCTs on memory function in older adults without cognitive impairment. METHODS A systematic literature search of PubMed, Cochrane Library, Scopus, and Web of Science was employed from inception until April 2022 for randomized controlled trials (RCTs) in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, investigating the impact of MCT oils on components of memory. Risk of bias (RoB2) tool was utilized for quality assessment. RESULTS Six trials were included for qualitative synthesis, in which two studies examined the effect of MCTs through a ketogenic meal. MCT supplementation compared to controls was associated with improved indices of memory function in 4 out of 6 studies, particularly working memory. A meta-analysis was not employed due to the low number of studies, therefore, a true effect measure of MCT supplementation was not explored. CONCLUSIONS MCT supplementation may enhance working memory in non-demented older adults. These effects may be more prominent in individuals with lower baseline scores, from short and long-term supplementation. Further studies are warranted to confirm these findings in terms of optimal dose and MCTs composition, which may protect from memory decline during aging.
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Affiliation(s)
- Panagiotis Giannos
- Society of Meta-Research and Biomedical Innovation, London, UK.
- Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London, UK.
| | - Konstantinos Prokopidis
- Society of Meta-Research and Biomedical Innovation, London, UK
- Department of Musculoskeletal Biology, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool, UK
| | - Irene Lidoriki
- First Department of Surgery, National and Kapodistrian University of Athens, Laikon General Hospital, Athens, Greece
| | - Konstantinos K Triantafyllidis
- Society of Meta-Research and Biomedical Innovation, London, UK
- Department of Nutrition and Dietetics, Musgrove Park Hospital, Taunton and Somerset NHS Foundation Trust, Taunton, UK
| | - Konstantinos S Kechagias
- Society of Meta-Research and Biomedical Innovation, London, UK
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, UK
- Department of Obstetrics and Gynaecology, Chelsea and Westminster Hospital NHS Foundation Trust, London, UK
| | - Kamil Celoch
- Department of Psychology and Neuroscience, Nova Southeastern University, Davie, USA
| | - Darren G Candow
- Faculty of Kinesiology and Health Studies, University of Regina, Regina, Saskatchewan, Canada
| | - Sergej M Ostojic
- Department of Nutrition and Public Health, University of Agder, Kristiansand, Norway
| | - Scott C Forbes
- Department of Physical Education Studies, Faculty of Education, Brandon University, Brandon, Manitoba, Canada
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17
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Prokopidis K, Kirwan RP, Giannos P, Triantafyllidis KK, Kechagias KS, Forbes SC, Candow DG. The impact of branched-chain amino acid supplementation on measures of glucose homeostasis in individuals with hepatic disorders: A systematic review of clinical studies. J Hum Nutr Diet 2022; 36:603-611. [PMID: 35996869 DOI: 10.1111/jhn.13076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 07/25/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Branched chain amino acid (BCAA) supplementation may influence glucose metabolism in individuals with impaired glycemic profile. This systematic review investigated the effects of isolated BCAA supplementation on measures of glucose homeostasis in individuals with hepatic disorders. METHODS We searched PubMed, Web of Science, Cochrane Library, and Scopus for published clinical trials that investigated the effects of isolated BCAA supplementation on measures of glucose homeostasis, including serum glucose and insulin, glycated hemoglobin (HbA1c) levels, and Homeostatic Model Assessment for Insulin Resistance (HOMA-IR) scores. RESULTS Eleven trials met the inclusion criteria. Only one study revealed a decrease in serum glucose from BCAA supplementation compared to three studies that showed increases. Five studies demonstrated no significant changes in serum glucose, and two studies displayed no changes in HbA1c following BCAA supplementation. Serum levels of insulin were decreased in three studies, remained unchanged in one, whilst increased in the remaining three studies. BCAA supplementation reduced HOMA-IR scores in two studies, increased HOMA-IR scores in another two or resulted in no changes in two other studies. CONCLUSIONS BCAA supplementation in isolation had no effect on overall glucose homeostasis in individuals with hepatic disorders, although some improvements on serum insulin levels and HOMA-IR scores were observed. Overall, there is little evidence to support the utilization of BCAA supplementation as a potential nutritional strategy for improving measures of glucose homeostasis in individuals with hepatic disorders. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Konstantinos Prokopidis
- Department of Musculoskeletal Biology, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool, UK
| | - Richard P Kirwan
- School of Biological and Environmental Sciences, Liverpool John Moores University, Liverpool, UK
| | - Panagiotis Giannos
- Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London, UK
| | | | - Konstantinos S Kechagias
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, UK.,Department of Nutrition & Dietetics, Chelsea and Westminster Hospital NHS Foundation Trust, London, UK
| | - Scott C Forbes
- Department of Physical Education Studies, Faculty of Education, Brandon University, Brandon, MB, Canada
| | - Darren G Candow
- Faculty of Kinesiology and Health Studies, University of Regina, Regina, SK, Canada
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18
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Kechagias KS, Kalliala I, Bowden SJ, Athanasiou A, Paraskevaidi M, Paraskevaidis E, Dillner J, Nieminen P, Strander B, Sasieni P, Veroniki AA, Kyrgiou M. Role of human papillomavirus (HPV) vaccination on HPV infection and recurrence of HPV related disease after local surgical treatment: systematic review and meta-analysis. BMJ 2022; 378:e070135. [PMID: 35922074 PMCID: PMC9347010 DOI: 10.1136/bmj-2022-070135] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/14/2022] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To explore the efficacy of human papillomavirus (HPV) vaccination on the risk of HPV infection and recurrent diseases related to HPV infection in individuals undergoing local surgical treatment. DESIGN Systematic review and meta-analysis DATA SOURCES: PubMed (Medline), Scopus, Cochrane, Web of Science, and ClinicalTrials.gov were screened from inception to 31 March 2021. REVIEW METHODS Studies reporting on the risk of HPV infection and recurrence of disease related to HPV infection after local surgical treatment of preinvasive genital disease in individuals who were vaccinated were included. The primary outcome measure was risk of recurrence of cervical intraepithelial neoplasia grade 2 or higher (CIN2+) after local surgical treatment, with follow-up as reported by individual studies. Secondary outcome measures were risk of HPV infection or other lesions related to HPV infection. Independent and in duplicate data extraction and quality assessment were performed with ROBINS-I and RoB-2 tools for observational studies and randomised controlled trials, respectively. Grading of Recommendations Assessment, Development, and Evaluation (GRADE) was implemented for the primary outcome. Observational studies and randomised controlled trials were analysed separately from post hoc analyses of randomised controlled trials. Pooled risk ratios and 95% confidence intervals were calculated with a random effects meta-analysis model. The restricted maximum likelihood was used as an estimator for heterogeneity, and the Hartung-Knapp-Sidik-Jonkman method was used to derive confidence intervals. RESULTS 22 articles met the inclusion criteria of the review; 18 of these studies also reported data from a non-vaccinated group and were included in the meta-analyses (12 observational studies, two randomised controlled trials, and four post hoc analyses of randomised controlled trials). The risk of recurrence of CIN2+ was reduced in individuals who were vaccinated compared with those who were not vaccinated (11 studies, 19 909 participants; risk ratio 0.43, 95% confidence interval 0.30 to 0.60; I2=58%, τ2=0.14, median follow-up 36 months, interquartile range 24-43.5). The effect estimate was even stronger when the risk of recurrence of CIN2+ was assessed for disease related to HPV subtypes HPV16 or HPV18 (six studies, 1879 participants; risk ratio 0.26, 95% confidence interval 0.16 to 0.43; I2=0%, τ2=0). Confidence in the meta-analysis for CIN2+ overall and CIN2+ related to HPV16 or HPV18, assessed by GRADE, ranged from very low to moderate, probably because of publication bias and inconsistency in the studies included in the meta-analysis. The risk of recurrence of CIN3 was also reduced in patients who were vaccinated but uncertainty was large (three studies, 17 757 participants; 0.28, 0.01 to 6.37; I2=71%, τ2=1.23). Evidence of benefit was lacking for recurrence of vulvar, vaginal, and anal intraepithelial neoplasia, genital warts, and persistent and incident HPV infections, although the number of studies and participants in each outcome was low. CONCLUSION HPV vaccination might reduce the risk of recurrence of CIN, in particular when related to HPV16 or HPV18, in women treated with local excision. GRADE assessment for the quality of evidence indicated that the data were inconclusive. Large scale, high quality randomised controlled trials are required to establish the level of effectiveness and cost of HPV vaccination in women undergoing treatment for diseases related to HPV infection. SYSTEMATIC REVIEW REGISTRATION PROSPERO CRD42021237350.
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Affiliation(s)
- Konstantinos S Kechagias
- Department of Metabolism, Digestion, and Reproduction and Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, London, UK
| | - Ilkka Kalliala
- Department of Metabolism, Digestion, and Reproduction and Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, London, UK
- Department of Obstetrics and Gynaecology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Sarah J Bowden
- Department of Metabolism, Digestion, and Reproduction and Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, London, UK
| | - Antonios Athanasiou
- Department of Metabolism, Digestion, and Reproduction and Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, London, UK
| | - Maria Paraskevaidi
- Department of Metabolism, Digestion, and Reproduction and Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, London, UK
| | | | - Joakim Dillner
- Centre for Cervical Cancer Prevention, Medical Diagnostics Karolinska, Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden
| | - Pekka Nieminen
- Department of Obstetrics and Gynaecology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Bjorn Strander
- Department of Obstetrics and Gynaecology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Peter Sasieni
- King's Clinical Trials Unit, King's College London, London, UK
| | - Areti Angeliki Veroniki
- Department of Metabolism, Digestion, and Reproduction and Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, London, UK
- Li Ka Shing Knowledge Institute, St Michael's Hospital, Unity Health Toronto, Toronto, ON, Canada
| | - Maria Kyrgiou
- Department of Metabolism, Digestion, and Reproduction and Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, London, UK
- Imperial College Healthcare NHS Trust, London, UK
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19
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Patel N, Nicolae R, Geropoulos G, Mandal P, Christou CD, Gavala M, Madouros N, Papapanou M, Mogal R, Giannis D, Kechagias KS, Panagiotopoulos N. Pneumomediastinum in the COVID-19 era: to drain or not to drain? Monaldi Arch Chest Dis 2022; 93. [PMID: 35904103 DOI: 10.4081/monaldi.2022.2338] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 07/20/2022] [Indexed: 02/07/2023] Open
Abstract
Pneumomediastinum (PNM) is a rare clinical finding, usually with a benign course, which is managed conservatively in the majority of cases. However, during the COVID-19 pandemic, an increased incidence of PNM has been observed. Several reports of PNM cases in COVID-19 have been reported in the literature and were managed either conservatively or surgically. In this study, we present our institutional experience of COVID-19 associated PNM, propose a management algorithm, and review the current literature. In total, 43 Case Series were identified, including a total of 747 patients, of whom 374/747 (50.1%) were intubated at the time of diagnosis, 168/747 (22.5%) underwent surgical drain insertion at admission, 562/747 (75.2%) received conservative treatment (observation or mechanical ventilation. Inpatient mortality was 51.8% (387/747), while 45.1% of the population recovered and/or was discharged (337/747). In conclusion, with increased incidence of PNM in COVID-19 patients reported in the literature, it is still difficult to assign a true causal relationship between PNM and mortality. We can, however, see that PMN plays an important role in disease prognosis. Due to increased complexity, high mortality, and associated complications, conservative management may not be sufficient, and a surgical approach is needed.
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Affiliation(s)
- Nian Patel
- Department of General Surgery, University College London Hospitals, NHS Foundation Trust, London.
| | - Robert Nicolae
- Surgery Working Group, Society of Junior Doctors, Athens, Greece.
| | - Georgios Geropoulos
- Thoracic Surgery Department, University College London Hospitals, NHS Foundation Trust, London.
| | - Pallabhi Mandal
- Department of General Surgery, University College London Hospitals, NHS Foundation Trust, London.
| | | | | | | | | | - Rahul Mogal
- Respiratory Medicine Department, Watford General Hospital, West Hertfordshire Hospitals, NHS Foundation Trust, Hertfordshire.
| | | | - Konstantinos S Kechagias
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London.
| | - Nikolaos Panagiotopoulos
- Thoracic Surgery Department, University College London Hospitals, NHS Foundation Trust, London, UK..
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20
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Giannos P, Kechagias KS, Katsikas Triantafyllidis K, Falagas ME. Spotlight on Early COVID-19 Research Productivity: A 1-Year Bibliometric Analysis. Front Public Health 2022; 10:811885. [PMID: 35712290 PMCID: PMC9197383 DOI: 10.3389/fpubh.2022.811885] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 04/21/2022] [Indexed: 01/08/2023] Open
Abstract
Coronavirus disease 2019 (COVID-19), one of the most serious public health crises in over a century, has led to an unprecedented surge of publications across all areas of knowledge. This study assessed the early research productivity on COVID-19 in terms of vaccination, diagnosis, treatment, symptoms, risk factors, nutrition, and economy. The Scopus database was searched between January 1, 2020 and December 31, 2020 to initially examine the research productivity on COVID-19, as measured by total publications by the 20 highest-ranked countries according to gross domestic product. The literature search was then refined, and research productivity was assessed across seven major research domains related to COVID-19: vaccination, diagnosis, treatment, symptoms, risk factors, nutrition, and economy. The initial literature search yielded 53,348 publications. Among these, 27,801 publications involved authorship from a single country and 22,119 publications involved authorship from multiple countries. Overall, the United States was the most productive country (n = 13,491), with one and a half times or more publications than any other country, on COVID-19 and the selected domains related to it. However, following adjustment for population size, gross domestic product, and expenditure for research and development, countries of emerging economies such as India along countries of lower population density such as Switzerland, Indonesia, and Turkey exhibited higher research productivity. The surge of COVID-19 publications in such a short period of time underlines the capacity of the scientific community to respond against a global health emergency; however where future research priorities and resource distribution should be placed on the respective thematic fields at an international level, warrants further investigation.
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Affiliation(s)
- Panagiotis Giannos
- Society of Meta-Research and Biomedical Innovation, London, United Kingdom.,Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London, United Kingdom
| | - Konstantinos S Kechagias
- Society of Meta-Research and Biomedical Innovation, London, United Kingdom.,Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, United Kingdom
| | - Konstantinos Katsikas Triantafyllidis
- Society of Meta-Research and Biomedical Innovation, London, United Kingdom.,Department of Dietetics, West Suffolk Hospital NHS Foundation Trust, Bury St Edmunds, United Kingdom
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21
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Prokopidis K, Giannos P, Katsikas Triantafyllidis K, Kechagias KS, Mesinovic J, Witard OC, Scott D. Effect of vitamin D monotherapy on indices of sarcopenia in community-dwelling older adults: a systematic review and meta-analysis. J Cachexia Sarcopenia Muscle 2022; 13:1642-1652. [PMID: 35261183 PMCID: PMC9178168 DOI: 10.1002/jcsm.12976] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 01/24/2022] [Accepted: 02/21/2022] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Vitamin D supplementation is proposed as a potentially effective nutritional intervention to mitigate the risk of sarcopenia. The aim of this systematic review and meta-analysis was to investigate the impact of vitamin D supplementation monotherapy on indices of sarcopenia in community-dwelling older adults. METHODS A comprehensive search of the literature was conducted in PubMed, Web of Science, Scopus, and Cochrane Library. Eligible randomized controlled trials (RCTs) compared the effect of vitamin D supplementation (as monotherapy) with placebo on indices of sarcopenia in older (>50 years) adults. Using the random effects inverse-variance model, we calculated the mean difference (MD) in handgrip strength (HGS), short physical performance battery (SPPB), timed up and go (TUG), and appendicular lean mass (ALM) between groups. We also calculated the standardized mean difference (SMD) in general muscle strength and general physical performance (composite plot of all muscle strength and physical performance outcomes, respectively) between groups. RESULTS Ten RCTs were included in the meta-analysis. A significant decrease in SPPB scores was observed with vitamin D supplementation compared with placebo (MD: -0.23; 95% CI -0.40 to -0.06; I2 = 0%; P = 0.007). Vitamin D supplementation conferred no effect on HGS (MD: -0.07 kg; 95% CI -0.70 to 0.55; I2 = 51%, P = 0.82), TUG (MD: 0.07 s; 95% CI -0.08 to 0.22; I2 = 0%, P = 0.35), ALM (MD: 0.06 kg/m2 ; 95% CI: -0.32 to 0.44; I2 = 73%, P = 0.77), general muscle strength (SMD: -0.01; 95% CI -0.17 to 0.15; I2 = 42%, P = 0.90), or general physical performance (SMD: -0.02; 95% CI -0.23 to 0.18; I2 = 71%, P = 0.83). CONCLUSIONS Vitamin D supplementation did not improve any sarcopenia indices in community-dwelling older adults and may compromise some aspects of physical performance. Future studies are warranted to investigate the impact of vitamin D supplementation on individual indices of SPPB, including mobility and balance, in older adults.
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Affiliation(s)
- Konstantinos Prokopidis
- Department of Musculoskeletal Biology, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool, UK.,Society of Meta-research and Biomedical Innovation, London, UK
| | - Panagiotis Giannos
- Society of Meta-research and Biomedical Innovation, London, UK.,Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London, UK
| | - Konstantinos Katsikas Triantafyllidis
- Society of Meta-research and Biomedical Innovation, London, UK.,Department of Nutrition & Dietetics, Musgrove Park Hospital, Taunton & Somerset NHS Foundation Trust, Taunton, UK
| | - Konstantinos S Kechagias
- Society of Meta-research and Biomedical Innovation, London, UK.,Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, UK
| | - Jakub Mesinovic
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Burwood, Victoria, Australia.,Department of Medicine, School of Clinical Sciences at Monash Health, Monash University, Clayton, Victoria, Australia
| | - Oliver C Witard
- Centre for Human and Applied Physiological Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - David Scott
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Burwood, Victoria, Australia.,Department of Medicine, School of Clinical Sciences at Monash Health, Monash University, Clayton, Victoria, Australia
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22
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Giannos P, Triantafyllidis KK, Giannos G, Kechagias KS. SPP1 in infliximab resistant ulcerative colitis and associated colorectal cancer: an analysis of differentially expressed genes. Eur J Gastroenterol Hepatol 2022; 34:598-606. [PMID: 35102110 DOI: 10.1097/meg.0000000000002349] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
OBJECTIVE Infliximab, a tumour necrosis factor-α (TNFα) antagonist, has advanced the management of ulcerative colitis. Although efficacious, considerable percentage of patients are resistant to treatment. Accumulative inflammatory burden in long-term ulcerative colitis patients refractory to therapy increases the risk of developing colorectal cancer (CRC). Our study investigated anti-TNFα-naïve patients with active ulcerative colitis to identify gene biomarkers whose dysregulated expression correlated with resistance to infliximab (IFX) treatment and poor prognosis in CRC. METHODS Differentially expressed genes (DEGs) from two studies (GSE73661 and GSE14580) with colonic mucosal samples were retrieved. Noninflammatory bowel disease controls were compared with those with active ulcerative colitis that either responded or were resistant to IFX before treatment. DEGs from ulcerative colitis samples resistant to IFX were used to construct a protein-protein interaction network, and clustering gene modules were identified. Module DEGs that overlapped with ulcerative colitis samples responsive to IFX were analysed, based on topological closeness and radiality. Hub genes were obtained, and their correlation with CRC progression was evaluated. Their expression in CRC tissues and their tumour microenvironment immune status was estimated. RESULTS Three clusters composed of 582 DEGs from ulcerative colitis samples resistant to IFX were retrieved. Comparative analysis identified 305 overlapping DEGs with ulcerative colitis samples responsive to IFX. Topological analysis revealed a hub gene - SPP1 - whose overexpression in CRC tissues and patients correlated with increased infiltration of immune signatures and poor prognosis. CONCLUSION SPP1 may serve as potential gene biomarker and predictor of resistance to IFX therapy in ulcerative colitis and CRC development.
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Affiliation(s)
- Panagiotis Giannos
- Department of Life Sciences, Faculty of Natural Sciences, Imperial College London
- Society of Meta-research and Biomedical Innovation, London
| | | | - Georgios Giannos
- Second Department of Surgery, Evaggelismos Hospital, Athens
- Department of Medicine, University of Crete Medical School, Heraklion, Crete, Greece
| | - Konstantinos S Kechagias
- Society of Meta-research and Biomedical Innovation, London
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London
- Department of Obstetrics and Gynaecology, Chelsea and Westminster Hospital National Health Service (NHS) Foundation Trust, London, UK
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23
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Delardas O, Kechagias KS, Katsikas Triantafyllidis K, Giannos P. Concerns about academic freedom caused by the Russia–Ukraine War. EMBO Rep 2022; 23:e55079. [PMID: 35403795 PMCID: PMC9066049 DOI: 10.15252/embr.202255079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 03/23/2022] [Indexed: 11/09/2022] Open
Abstract
Russia's war against Ukraine has raised concerns not about the fate of Ukrainian science and scientists but also academic freedom and international cooperation in science.
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Affiliation(s)
| | - Konstantinos S Kechagias
- Society of Meta‐research and Biomedical Innovation London UK
- Department of Metabolism, Digestion and Reproduction Faculty of Medicine Imperial College London London UK
- Department of Obstetrics and Gynaecology Chelsea and Westminster NHS Foundation Trust London UK
| | - Konstantinos Katsikas Triantafyllidis
- Society of Meta‐research and Biomedical Innovation London UK
- Department of Nutrition & Dietetics Musgrove Park Hospital Taunton & Somerset NHS Foundation Trust Taunton UK
| | - Panagiotis Giannos
- Society of Meta‐research and Biomedical Innovation London UK
- Department of Life Sciences Faculty of Natural Sciences Imperial College London London UK
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24
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Giannos P, Katsikas Triantafyllidis K, Geropoulos G, Kechagias KS. Persistent Hiccups as an Atypical Presentation of SARS-CoV-2 Infection: A Systematic Review of Case Reports. Front Neurol 2022; 13:819624. [PMID: 35444608 PMCID: PMC9014175 DOI: 10.3389/fneur.2022.819624] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 02/15/2022] [Indexed: 01/08/2023] Open
Abstract
Symptoms, such as fever, dry cough, dyspnoea, and respiratory distress, are commonly described in patients infected with Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2). Recently, a growing number of cases pertained to persistent hiccups have been reported by SARS-CoV-2 infected patients. The aim of this systematic review was to screen the current literature and provide a summary of the reported cases of SARS-CoV-2 infected patients presenting with persistent hiccups. According to Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, PubMed, Scopus, and Web of Science databases were searched from inception until October 2021. Case reports or case series that provided a separate clinical description for patients with presenting complaints of persistent hiccups before or after COVID-19 diagnosis were retrieved. The critical appraisal checklist for case reports provided by the Joanna Briggs Institute (JBI) was employed to evaluate the overall quality of the eligible studies. We identified 13 eligible studies that included 16 hospitalized COVID-19 patients who complained of persistent hiccups. The mean duration of hiccups was 4.6 days reported in 88% (14/16) patients. Hypertension was the most common comorbidity present in 50% (8/16) of patients followed by diabetes mellitus (4/16). Moreover, 44% (7/16) of patients received only one medication for managing the hiccups with metoclopramide (5/16) followed by chlorpromazine and baclofen (4/16) used as primary treatment. Equally, 44% of patients (7/16) received dexamethasone followed by azithromycin (5/16), ivermectin (4/16), and ceftriaxone (4/16) for managing the infection from SARS-CoV-2. The majority of patients (14/16) improved after initiation of treatment. Persistent hiccups are possibly a rare symptom that clinicians may expect to encounter in patients infected with SARS-CoV-2. Although there is not ample proof to propose causation, increased awareness about the diversity of presentations of SARS-CoV-2 infection could be crucial in the early recognition of the disease.
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Affiliation(s)
- Panagiotis Giannos
- Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London, United Kingdom.,Society of Meta-Research and Biomedical Innovation, London, United Kingdom
| | - Konstantinos Katsikas Triantafyllidis
- Society of Meta-Research and Biomedical Innovation, London, United Kingdom.,Department of Nutrition and Dietetics, Musgrove Park Hospital, Taunton & Somerset NHS Foundation Trust, Taunton, United Kingdom
| | - Georgios Geropoulos
- Department of General Surgery, University College London Hospitals, NHS Foundation Trust, London, United Kingdom
| | - Konstantinos S Kechagias
- Society of Meta-Research and Biomedical Innovation, London, United Kingdom.,Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, United Kingdom.,Department of Obstetrics and Gynaecology, Chelsea and Westminster Hospital NHS Foundation Trust, London, United Kingdom
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25
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Triantafyllidis KK, Giannos P, Stathi D, Kechagias KS. Graves' disease following vaccination against SARS-CoV-2: A systematic review of the reported cases. Front Endocrinol (Lausanne) 2022; 13:938001. [PMID: 36237182 PMCID: PMC9552880 DOI: 10.3389/fendo.2022.938001] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 08/23/2022] [Indexed: 01/08/2023] Open
Abstract
The newly developed COVID-19 vaccines have established a safe profile, yet some individuals experience a wide range of adverse events. Recently, thyroid dysfunction, including Graves' disease, has been observed after administration of different COVID-19 vaccines, although causality remains a matter of debate. The aim of this systematic review was to examine the available literature and provide an overview of reported cases of Graves' disease following COVID-19 vaccination. We identified 21 eligible articles which included 57 patients with Graves' disease following COVID-19 vaccination. Fourteen participants were males (25%, 14/57) and 43 (75%, 44/57) were females with a mean age of 44.3 years. The most common presenting symptom was palpitations (63%, 27/43) followed by weight loss (35%, 15/43). The majority of patients received thionamides (47%, 25/53). The clinical status after treatment was provided for 37 patients and it was improved in the majority of them (84%, 31/37). Graves' disease is possibly a condition clinicians may expect to encounter in patients receiving COVID-19 vaccines. While the above adverse event is rare, considering the scarcity of available data in scientific literature, and causality is not yet confirmed, the increased awareness of clinicians and the early recognition of the disorder are important for the optimal management of these patients.
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Affiliation(s)
- Konstantinos Katsikas Triantafyllidis
- Society of Meta-research and Biomedical Innovation, London, United Kingdom
- Department of Nutrition and Dietetics, Homerton University Hospital Foundation Trust, London, United Kingdom
| | - Panagiotis Giannos
- Society of Meta-research and Biomedical Innovation, London, United Kingdom
- Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London, United Kingdom
| | - Dimitra Stathi
- Society of Meta-research and Biomedical Innovation, London, United Kingdom
- Department of Endocrinology and Diabetes, Guy’s and St Thomas’ National Health Service (NHS) Foundation Trust, London, United Kingdom
| | - Konstantinos S. Kechagias
- Society of Meta-research and Biomedical Innovation, London, United Kingdom
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, United Kingdom
- *Correspondence: Konstantinos S. Kechagias,
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Giannos P, Kechagias KS, Bowden S, Tabassum N, Paraskevaidi M, Kyrgiou M. PCNA in Cervical Intraepithelial Neoplasia and Cervical Cancer: An Interaction Network Analysis of Differentially Expressed Genes. Front Oncol 2021; 11:779042. [PMID: 34900731 PMCID: PMC8661029 DOI: 10.3389/fonc.2021.779042] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 10/28/2021] [Indexed: 11/30/2022] Open
Abstract
The investigation of differentially expressed genes (DEGs) and their interactome could provide valuable insights for the development of markers to optimize cervical intraepithelial neoplasia (CIN) screening and treatment. This study investigated patients with cervical disease to identify gene markers whose dysregulated expression and protein interaction interface were linked with CIN and cervical cancer (CC). Literature search of microarray datasets containing cervical epithelial samples was conducted in Gene Expression Omnibus and Pubmed/Medline from inception until March 2021. Retrieved DEGs were used to construct two protein-protein interaction (PPI) networks. Module DEGs that overlapped between CIN and CC samples, were ranked based on 11 topological algorithms. The highest-ranked hub gene was retrieved and its correlation with prognosis, tissue expression and tumor purity in patients with CC, was evaluated. Screening of the literature yielded 9 microarray datasets (GSE7803, GSE27678, GSE63514, GSE6791, GSE9750, GSE29570, GSE39001, GSE63678, GSE67522). Two PPI networks from CIN and CC samples were constructed and consisted of 1704 and 3748 DEGs along 21393 and 79828 interactions, respectively. Two gene clusters were retrieved in the CIN network and three in the CC network. Multi-algorithmic topological analysis revealed PCNA as the highest ranked hub gene between the two networks, both in terms of expression and interactions. Further analysis revealed that while PCNA was overexpressed in CC tissues, it was correlated with favorable prognosis (log-rank P=0.022, HR=0.58) and tumor purity (P=9.86 × 10-4, partial rho=0.197) in CC patients. This study identified that cervical PCNA exhibited multi-algorithmic topological significance among DEGs from CIN and CC samples. Overall, PCNA may serve as a potential gene marker of CIN progression. Experimental validation is necessary to examine its value in patients with cervical disease.
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Affiliation(s)
- Panagiotis Giannos
- Society of Meta-Research and Biomedical Innovation, Cancer Research Working Group, London, United Kingdom.,Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London, United Kingdom
| | - Konstantinos S Kechagias
- Society of Meta-Research and Biomedical Innovation, Cancer Research Working Group, London, United Kingdom.,Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, United Kingdom.,Department of Obstetrics and Gynaecology, Chelsea and Westminster Hospital National Health Service (NHS) Foundation Trust, London, United Kingdom
| | - Sarah Bowden
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, United Kingdom.,Institute of Reproductive and Developmental Biology, Imperial College London, London, United Kingdom
| | - Neha Tabassum
- Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London, United Kingdom
| | - Maria Paraskevaidi
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, United Kingdom.,Institute of Reproductive and Developmental Biology, Imperial College London, London, United Kingdom
| | - Maria Kyrgiou
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, United Kingdom.,Institute of Reproductive and Developmental Biology, Imperial College London, London, United Kingdom.,Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, London, United Kingdom.,West London Gynaecological Cancer Centre, Imperial College Healthcare National Health Service (NHS) Trust, London, United Kingdom
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Giannos P, Kechagias KS, Gal A. Identification of Prognostic Gene Biomarkers in Non-Small Cell Lung Cancer Progression by Integrated Bioinformatics Analysis. Biology (Basel) 2021; 10:1200. [PMID: 34827193 PMCID: PMC8615219 DOI: 10.3390/biology10111200] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 11/08/2021] [Accepted: 11/15/2021] [Indexed: 01/06/2023]
Abstract
The progression of non-small cell lung cancer (NSCLC) is linked to epithelial-mesenchymal transition (EMT), a biologic process that enables tumor cells to acquire a migratory phenotype and resistance to chemo- and immunotherapies. Discovery of novel biomarkers in NSCLC progression is essential for improved prognosis and pharmacological interventions. In the current study, we performed an integrated bioinformatics analysis on gene expression datasets of TGF-β-induced EMT in NSCLC cells to identify novel gene biomarkers and elucidate their regulation in NSCLC progression. The gene expression datasets were extracted from the NCBI Gene Expression Omnibus repository, and differentially expressed genes (DEGs) between TGF-β-treated and untreated NSCLC cells were retrieved. A protein-protein interaction network was constructed and hub genes were identified. Functional and pathway enrichment analyses were conducted on module DEGs, and a correlation between the expression levels of module genes and survival of NSCLC patients was evaluated. Prediction of interactions of the biomarker genes with transcription factors and miRNAs was also carried out. We described four protein clusters in which DEGs were associated with ubiquitination (Module 1), regulation of cell death and cell adhesions (Module 2), oxidation-reduction reactions of aerobic respiration (Module 3) and mitochondrial translation (Module 4). From the module genes, we identified ten prognostic gene biomarkers in NSCLC. Low expression levels of KCTD6, KBTBD7, LMO7, SPSB2, RNF19A, FOXA2, DHTKD1, CDH1 and PDHB and high expression level of KLHL25 were associated with reduced overall survival of NSCLC patients. Most of these biomarker genes were involved in protein ubiquitination. The regulatory network of the gene biomarkers revealed their interaction with tumor suppressor miRNAs and transcription factors involved in the mechanisms of cancer progression. This ten-gene prognostic signature can be useful to improve risk prediction and therapeutic strategies in NSCLC. Our analysis also highlights the importance of deregulation of ubiquitination in EMT-associated NSCLC progression.
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Affiliation(s)
- Panagiotis Giannos
- School of Applied Sciences, University of Brighton, Lewes Road, Brighton BN2 4GJ, UK
- Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, South Kensington, London SW7 2AZ, UK
| | - Konstantinos S. Kechagias
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London W12 0NN, UK;
| | - Annamaria Gal
- School of Applied Sciences, University of Brighton, Lewes Road, Brighton BN2 4GJ, UK
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Kechagias KS, Katsikas Triantafyllidis K, Kyriakidou M, Giannos P, Kalliala I, Veroniki AA, Paraskevaidi M, Kyrgiou M. The Relation between Caffeine Consumption and Endometriosis: An Updated Systematic Review and Meta-Analysis. Nutrients 2021; 13:nu13103457. [PMID: 34684458 PMCID: PMC8538723 DOI: 10.3390/nu13103457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 09/19/2021] [Accepted: 09/26/2021] [Indexed: 11/16/2022] Open
Abstract
While the contributing factors leading to endometriosis remain unclear, its clinical heterogeneity suggests a multifactorial causal background. Amongst others, caffeine has been studied extensively during the last decade as a putative contributing factor. In this systematic review and meta-analysis, we provide an overview/critical appraisal of studies that report on the association between caffeine consumption and the presence of endometriosis. In our search strategy, we screened PubMed and Scopus for human studies examining the above association. The main outcome was the relative risk of endometriosis in caffeine users versus women consuming little or no caffeine (<100 mg/day). Subgroup analyses were conducted for different levels of caffeine intake: high (>300 mg/day) or moderate (100–300 mg/day). Ten studies were included in the meta-analysis (five cohort and five case-control studies). No statistically significant association was observed between overall caffeine consumption and risk for endometriosis (RR 1.12, 95% confidence interval (CI) 0.97–1.28, I2 = 70%) when compared to little or no (<100 mg/day) caffeine intake. When stratified according to level of consumption, high intake was associated with increased risk of endometriosis (RR 1.30, 95%CI 1.04–1.63, I2 = 56%), whereas moderate intake did not reach nominal statistical significance (RR 1.18, 95%CI 0.99–1.40, I2 = 37%). In conclusion, caffeine consumption does not appear to be associated with increased risk for endometriosis. However, further research is needed to elucidate the potential dose-dependent link between caffeine and endometriosis or the probable role of caffeine intake as a measurement of other unidentified biases.
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Affiliation(s)
- Konstantinos S. Kechagias
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London W12 0NN, UK; (I.K.); (A.A.V.); (M.P.); (M.K.)
- Correspondence: ; Tel.: +44-7590803194
| | - Konstantinos Katsikas Triantafyllidis
- Department of Dietetics, West Suffolk Hospital NHS Foundation Trust, Bury St Edmunds, Bury Saint Edmunds IP33 2QZ, UK;
- Society of Meta-Research and Biomedical Innovation, London W12 0BZ, UK;
| | - Margarita Kyriakidou
- Department of Applied Mathematical and Physical Sciences, National Technical University of Athens, 15773 Athens, Greece;
| | - Panagiotis Giannos
- Society of Meta-Research and Biomedical Innovation, London W12 0BZ, UK;
- Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London SW7 2AZ, UK
| | - Ilkka Kalliala
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London W12 0NN, UK; (I.K.); (A.A.V.); (M.P.); (M.K.)
- Department of Obstetrics and Gynaecology, Helsinki University and University Hospital Helsinki, 00014 Helsinki, Finland
| | - Areti Angeliki Veroniki
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London W12 0NN, UK; (I.K.); (A.A.V.); (M.P.); (M.K.)
- Knowledge Translation Program, Li Ka Shing Knowledge Institute, St. Michael’s Hospital, Toronto, ON M5B 1W8, Canada
| | - Maria Paraskevaidi
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London W12 0NN, UK; (I.K.); (A.A.V.); (M.P.); (M.K.)
| | - Maria Kyrgiou
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London W12 0NN, UK; (I.K.); (A.A.V.); (M.P.); (M.K.)
- West London Gynaecological Cancer Centre, Imperial College NHS Trust, London W12 0HS, UK
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Katsikas Triantafyllidis K, Giannos P, Mian IT, Kyrtsonis G, Kechagias KS. Varicella Zoster Virus Reactivation Following COVID-19 Vaccination: A Systematic Review of Case Reports. Vaccines (Basel) 2021; 9:vaccines9091013. [PMID: 34579250 PMCID: PMC8471236 DOI: 10.3390/vaccines9091013] [Citation(s) in RCA: 70] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 09/02/2021] [Accepted: 09/05/2021] [Indexed: 01/12/2023] Open
Abstract
The newly developed COVID-19 vaccines have established a safe profile, yet some individuals experience a wide range of adverse events. Recently, reactivation of varicella zoster virus (VZV) has been observed after administration of different COVID-19 vaccines, although causality remains a matter of debate. The aim of this systematic review was to examine the available literature and provide an overview of reported cases of VZV reactivation following COVID-19 vaccination. We identified 12 eligible articles which included 91 patients with herpes zoster (HZ) following COVID-19 vaccination. Hypertension was the main comorbidity present in 18% of patients (16/91). Additionally, 13% of patients (12/91) had an autoimmune condition with rheumatoid arthritis being the most common (4/12). Moreover, 10% of patients (9/91) were receiving immunosuppressants. The dermatomal distribution of skin lesions varied among patients, with the mammary region being most affected. On average, symptoms developed 5.8 days post-vaccination irrespective of dose and treatment with oral valacyclovir as a monotherapy was employed in most patients (23/91). HZ is possibly a condition clinicians may expect to encounter in patients receiving COVID-19 vaccines. While causality has not yet been established increased awareness and early recognition of the disorder would be crucial for the optimal management of these patients.
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Affiliation(s)
- Konstantinos Katsikas Triantafyllidis
- Department of Nutrition & Dietetics, Musgrove Park Hospital, Taunton & Somerset NHS Foundation Trust, Taunton TA1 5DA, UK;
- Society of Meta-Research and Biomedical Innovation, London W12 0BZ, UK;
| | - Panagiotis Giannos
- Society of Meta-Research and Biomedical Innovation, London W12 0BZ, UK;
- Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London SW7 2AZ, UK
| | | | - George Kyrtsonis
- Department of General Surgery, Croydon University Hospital, Croydon, London CR7 7YE, UK;
| | - Konstantinos S. Kechagias
- Society of Meta-Research and Biomedical Innovation, London W12 0BZ, UK;
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London W12 0NN, UK
- Correspondence: ; Tel.: +44-7590803194
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30
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Falagas ME, Kyriakidou M, Voulgaris GL, Vokos F, Politi S, Kechagias KS. Clinical use of intravenous polymyxin B for the treatment of patients with multidrug-resistant Gram-negative bacterial infections: An evaluation of the current evidence. J Glob Antimicrob Resist 2021; 24:342-359. [PMID: 33486122 DOI: 10.1016/j.jgar.2020.12.026] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 12/01/2020] [Accepted: 12/31/2020] [Indexed: 01/22/2023] Open
Abstract
OBJECTIVES The epidemic dimensions of the emergence of multidrug-resistant (MDR) Gram-negative bacterial infections have led to the revival of old antibiotics, including the polymyxins. METHODS We performed a review and meta-analysis to evaluate the current literature data regarding the effectiveness and safety of intravenous polymyxin B in patients with MDR Gram-negative bacterial infections and the overall mortality and nephrotoxicity in patients treated with intravenous polymyxin B either as monotherapy or combination therapy. RESULTS A total of 5 prospective and 28 retrospective studies, 1 cross-sectional study, 2 retrospective case series and 7 case reports provided data regarding the effectiveness and/or toxicity of intravenous polymyxin B. All-cause mortality of 2910 patients (from 27 studies) who received intravenous polymyxin B was 41.2% (95% CI 35.5-47.0%). All-cause nephrotoxicity of 2994 patients (from 28 studies) treated with intravenous polymyxin B was 40.7% (95% CI 35.0-46.6%). Renal failure among 2111 patients (from 14 studies) was 11.2% (95% CI 8.7-13.9%). CONCLUSION Mortality of patients treated with intravenous polymyxin B is similar to the literature-reported mortality of patients treated with intravenous colistin, while nephrotoxicity associated with polymyxin B use is possibly milder compared with colistin use based on literature data. Head-to-head prospective studies would help to clarify the benefit of polymyxin B over colistin. However, a critical evaluation of the existing worldwide literature data supports the need for availability of the intravenous formulation of polymyxin B as a potentially useful option for the treatment of patients with MDR and extensively drug-resistant (XDR) Gram-negative bacterial infections.
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Affiliation(s)
- Matthew E Falagas
- Alfa Institute of Biomedical Sciences, Athens, Greece; Department of Medicine, Henry Dunant Hospital Center, Athens, Greece; Department of Medicine, Tufts University School of Medicine, Boston, MA, USA.
| | - Margarita Kyriakidou
- Alfa Institute of Biomedical Sciences, Athens, Greece; School of Applied Mathematical and Physical Sciences, National Technical University, Athens, Greece
| | - Georgios L Voulgaris
- Alfa Institute of Biomedical Sciences, Athens, Greece; Laboratory of Pharmacokinetics and Toxicology, Department of Pharmacy, 401 General Military Hospital, Athens, Greece
| | - Filippos Vokos
- School of Applied Mathematical and Physical Sciences, National Technical University, Athens, Greece
| | - Sevasti Politi
- School of Applied Mathematical and Physical Sciences, National Technical University, Athens, Greece
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31
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Kechagias KS, Semertzidou A, Athanasiou A, Paraskevaidi M, Kyrgiou M. Bisphenol-A and polycystic ovary syndrome: a review of the literature. Rev Environ Health 2020; 35:323-331. [PMID: 32663175 DOI: 10.1515/reveh-2020-0032] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 05/22/2020] [Indexed: 06/11/2023]
Abstract
Polycystic ovary syndrome (PCOS) is the most common endocrine disorder among women of reproductive age with reproductive, metabolic and endocrine implications. While the exact pathophysiological mechanisms of the syndrome are unknown, its heterogeneity suggests a multifactorial causal background. In the last two decades, numerous environmental chemicals, including Bisphenol-A (BPA) that is used in the synthesis of polycarbonate plastics, have been proposed as potential contributors to the aetiology of PCOS. This review provides a holistic overview of the available data regarding the possible relation of PCOS with BPA exposure. We have included a total number of 24 studies. Eleven human case-control and 13 animal studies provided data regarding this potential relation. Accumulating evidence suggests that a correlation between high levels of BPA and the presence of PCOS may exist. Contradicting results from human and animal studies, however, render it difficult to conclude on the exact role of BPA in the pathogenesis of PCOS. BPA may constitute a consequence of the syndrome rather than a cause, but further research is still needed to clarify this. Continued efforts to study the early origins of PCOS, using prospective-designed studies, are required to identify the exact effect of BPA on women with PCOS.
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Affiliation(s)
- Konstantinos S Kechagias
- Department of Metabolism, Digestion and Reproduction and Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, London, UK
| | - Anita Semertzidou
- Department of Metabolism, Digestion and Reproduction and Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, London, UK
| | - Antonios Athanasiou
- Department of Metabolism, Digestion and Reproduction and Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, London, UK
| | - Maria Paraskevaidi
- Department of Metabolism, Digestion and Reproduction and Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, London, UK
- School of Pharmacy and Biomedical Sciences, University of Central Lancashire, Preston, UK
| | - Maria Kyrgiou
- Department of Metabolism, Digestion and Reproduction and Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, London, UK
- West London Gynaecological Cancer Centre, Queen Charlotte's & Chelsea - Hammersmith Hospital, Imperial College healthcare NHS Trust, London, UK
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Chorepsima S, Kechagias KS, Kalimeris G, Triarides NA, Falagas ME. Spotlight on inhaled ciprofloxacin and its potential in the treatment of non-cystic fibrosis bronchiectasis. Drug Des Devel Ther 2018; 12:4059-4066. [PMID: 30568427 PMCID: PMC6267620 DOI: 10.2147/dddt.s168014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Non-cystic fibrosis bronchiectasis (NCFB) is a severe chronic illness characterized by irreversible dilation of airways and thickening of bronchial walls, chronic inflammation, repeated infections, and progressive obstruction of the airways. In contrast to cystic fibrosis bronchiectasis (CFB), which is a well-defined genetic disorder, NCFB is a heterogeneous disease caused by many different medical entities. Inhaled antibiotics are effective for patients with CFB, but their efficacy in NCFB has not been proven. The main pathogens involved in the colonization of patients with bronchiectasis are Haemophilus influenza, Moraxella catarrhalis, Staphylococcus aureus, and Pseudomonas aeruginosa. The latter is associated with increased morbidity and mortality. In addition, in NCFB, P. aeruginosa strains are frequently more resistant than those in CFB. At present, there are no approved inhaled antibiotic therapies for NCFB patients. Inhaled ciprofloxacin has been under investigation in the last few years. In two phase II randomized, double-blind, placebo-controlled trials, the use of inhaled ciprofloxacin was significantly associated with reduction in sputum bacterial density and greater eradication rates. In four phase III randomized, double-blind, placebo-controlled trials, the results regarding the time of the first exacerbation and the rate of exacerbations were inconsistent. Specifically, ORBIT-4 and RESPIRE-1 trials showed clinical benefit (prolongation of the time of the first exacerbation and reduced rate of exacerbations in the treatment group compared to the placebo group), whereas the ORBIT-3 and RESPIRE-2 failed to achieve their primary endpoints. The RESPIRE-1 was the first trial that examined the 14-days on/off course separate from the standard 28-days on/off regimen, which is based on CFB protocol treatments. The current data on the efficacy of inhaled ciprofloxacin are encouraging, but further evaluation is needed to determine the appropriate target group and the ideal duration of treatment.
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Affiliation(s)
- Stamatia Chorepsima
- Alfa Institute of Biomedical Sciences (AIBS), Athens, Greece, .,Department of Medicine, Henry Dunant Hospital Center, Athens, Greece,
| | | | - Georgios Kalimeris
- Alfa Institute of Biomedical Sciences (AIBS), Athens, Greece, .,Department of Medicine, Henry Dunant Hospital Center, Athens, Greece,
| | - Nikolaos A Triarides
- Alfa Institute of Biomedical Sciences (AIBS), Athens, Greece, .,Department of Medicine, Henry Dunant Hospital Center, Athens, Greece,
| | - Matthew E Falagas
- Alfa Institute of Biomedical Sciences (AIBS), Athens, Greece, .,Department of Medicine, Henry Dunant Hospital Center, Athens, Greece, .,Department of Medicine, Tufts University School of Medicine, Boston, MA, USA,
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Theocharis G, Kechagias KS, Oikonomou M, Chorepsima S, Rodis D, Salpigktis I, Falagas ME. A Model for Out-of-Hospital Multispecialty Emergency Medicine: Accomplishments and Challenges. Health Serv Insights 2018; 11:1178632918805996. [PMID: 30369787 PMCID: PMC6201181 DOI: 10.1177/1178632918805996] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Accepted: 09/15/2018] [Indexed: 11/16/2022] Open
Abstract
Home care has been traditionally considered as an important type of medical service. "SOS Doctors" is a Greek organization providing out-of-hospital multispecialty emergency medicine services the past 25 years. Its services mainly meet the demands of the elderly and the nonambulatory patients. The decreased number of hospitalizations, hospital-related infections, and need for patient transportation are the main advantages of a model for out-of-hospital multispecialty emergency medicine. However, the time consumed by the doctor related to transportation is a drawback of medical house calls. Despite the challenges, medical house calls are a useful part of health services in the modern health care system.
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Affiliation(s)
- George Theocharis
- SOS Doctors, Athens, Greece.,Department of Medicine, Euroclinic General Clinic, Athens, Greece
| | | | - Michael Oikonomou
- SOS Doctors, Athens, Greece.,Department of Gastroenterology, Euroclinic General Clinic, Athens, Greece
| | - Stamatia Chorepsima
- Alfa Institute of Biomedical Sciences (AIBS), Athens, Greece.,Department of Medicine, Henry Dunant Hospital Center, Athens, Greece
| | - Dionisis Rodis
- SOS Doctors, Athens, Greece.,Department of Medicine, Euroclinic General Clinic, Athens, Greece
| | - Ioannis Salpigktis
- SOS Doctors, Athens, Greece.,Department of Medicine, Euroclinic General Clinic, Athens, Greece
| | - Matthew E Falagas
- Alfa Institute of Biomedical Sciences (AIBS), Athens, Greece.,Department of Medicine, Henry Dunant Hospital Center, Athens, Greece.,Department of Medicine, Tufts University School of Medicine, Boston, MA, USA
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