{"title":"Dynamics of endemic human coronavirus and SARS-CoV-2 in a hospital of Madrid, Spain. Retrospective study from June 2020 to July 2023","authors":"Rojo-Marcos Gerardo, Hernández-García Guiomar, González-Sarria Ander, Guerrero-Cañar Carlos Andrés, Arévalo-Cañas Coral","doi":"10.1111/apm.13446","DOIUrl":"10.1111/apm.13446","url":null,"abstract":"<p>An observational and retrospective study was carried out to analyse HCoV positivity from a multiplex PCR respiratory panel and RT-PCR for SARS-CoV-2 in respiratory samples from 1 June 2020 to 31 July 2023 at the Príncipe de Asturias University Hospital (HUPA) in Alcalá de Henares, Madrid, Spain. Out of 2802 respiratory panels, 1258 (44.8%) turned out positive. HCoV was detected in 114 (4%) cases (range 0–23; median 1.5; IQR 0–3.75) with positivity rates ranging from 0% to 14%. All four variants of HCoV circulated, and OC-43 was the most common in 62.3% of cases. After the onset of the pandemic, the HCoV season was delayed 22 weeks, with a peak positivity of 9% in the summer of 2021, showing an inverse relationship with the alpha and delta waves of SARS-CoV-2. In the two subsequent autumn–winter seasons, HCoV positivity increased (11–14%) with a reduction in the summer of 2022 and 2023 following the emergence of the omicron variant and the relaxation of social distancing measures. The seasonal spread pattern of endemic HCoV might be returning to normal in our region and likely in other temperate zones of the northern hemisphere after 3 years of the pandemic.</p>","PeriodicalId":8167,"journal":{"name":"Apmis","volume":"132 9","pages":"657-662"},"PeriodicalIF":2.2,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/apm.13446","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141316639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Marie Ley Ringgaard, Torben Steiniche, Søren Palmelund Krag
{"title":"Routine use of MSI testing in colorectal cancer using a proposed algorithm","authors":"Marie Ley Ringgaard, Torben Steiniche, Søren Palmelund Krag","doi":"10.1111/apm.13442","DOIUrl":"10.1111/apm.13442","url":null,"abstract":"<p>Fifteen percent of all colorectal cancers have detectable defects in the mismatch repair system (dMMR). MMR status is used to identify possible Lynch Syndrome (LS) and to determine prognosis and choice of treatment. Two standard techniques for determining MMR status are immunohistochemistry (IHC) and analysis for microsatellite instability (MSI) by PCR. Recently, our department introduced Idylla™ MSI assay as an alternative option to IHC, and as part of this, we introduced a decision algorithm. The purpose of this study was to review the use of the new method and our algorithm and to assess possible false-positive results. Retrospectively, we identified 629 cases of colorectal cancer in which either IHC (336 cases) or Idylla™ MSI (293 cases) was performed. Similar results were obtained by the two methods. IHC detected dMMR in 55 cases (16%) and Idylla™ MSI in 52 cases (18%). In all 52 cases of MSI, subsequent IHC was performed. One case was not confirmed by IHC, but was confirmed by another PCR-based method. Overall, we found that the Idylla™ MSI works well as a screening method for dMMR with no false-positive cases detected. The proposed algorithm was useful and easily applicable.</p>","PeriodicalId":8167,"journal":{"name":"Apmis","volume":"132 9","pages":"632-637"},"PeriodicalIF":2.2,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/apm.13442","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141316640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mehmet Ali Karaselek, Tugce Duran, Serkan Kuccukturk, Hulya Vatansev, Pembe Oltulu
{"title":"Changes in T-cell subsets occur in interstitial lung disease and may contribute to pathology via complicated immune cascade","authors":"Mehmet Ali Karaselek, Tugce Duran, Serkan Kuccukturk, Hulya Vatansev, Pembe Oltulu","doi":"10.1111/apm.13445","DOIUrl":"10.1111/apm.13445","url":null,"abstract":"<p>The study aimed to investigate the expression profiles of transcription factors, cytokines, and co-stimulatory molecules in helper T (Th)-cell subsets within bronchoalveolar lavage (BAL) samples of patients with interstitial lung diseases (ILDs). Twenty ILDs patients were included in the study, comprising those with idiopathic pulmonary fibrosis (IPF) (n:8), autoimmune-related ILDs (auto-ILD) (n:4), and orphan diseases (O-ILD) (n:8), alongside five control subjects. Flow cytometry was employed to evaluate the Th to cytotoxic T cell (CTL) ratio in BAL fluid, while cytopathological examination assessed macrophages, lymphocytes, and neutrophils. Quantitative real-time polymerase chain reaction was utilized to investigate the expressions in Th1, Th2, Th17, and regulatory T (Treg) cells. Results revealed elevated Th cell to CTL ratios across all patient groups compared to controls. Furthermore, upregulation of Th1, Th2, Th17, and T-cell factors was observed in all patient groups compared to controls. Interestingly, upregulation of <i>CD28</i> and downregulation of <i>CTLA-4</i> and <i>PD-1</i> gene expression were consistent across all ILDs groups, highlighting potential immune dysregulation. This study provides a comprehensive exploration of molecular immunological mechanisms in ILDs patients, underscoring the dominance of Th2 and Th17 responses and revealing novel findings regarding the dysregulation of <i>CD28</i>, <i>CTLA-4</i>, and <i>PD-1</i> expressions in ILDs for the first time.</p>","PeriodicalId":8167,"journal":{"name":"Apmis","volume":"132 9","pages":"663-671"},"PeriodicalIF":2.2,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/apm.13445","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141299888","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hongxia Bi, Jiayuan Qin, Jiaqi Huang, Cejun Zhong, Yanbin Liu
{"title":"Outer membrane vesicles from X-ray-irradiated Pseudomonas aeruginosa alleviate lung injury caused by P. aeruginosa infection-mediated sepsis","authors":"Hongxia Bi, Jiayuan Qin, Jiaqi Huang, Cejun Zhong, Yanbin Liu","doi":"10.1111/apm.13444","DOIUrl":"10.1111/apm.13444","url":null,"abstract":"<p><i>Pseudomonas aeruginosa</i> infection causes pneumonia and sepsis. Previous research found that X-ray radiation can induce <i>P. aeruginosa</i> to release outer membrane vesicles (OMVs) of relatively consistent sizes. This study found that OMVs derived from X-ray-irradiated <i>P. aeruginosa</i> can significantly inhibit lung leakage, inflammatory cell infiltrating into lung, and the production of pro-inflammatory cytokines, IL-1β and TNFα caused by <i>P. aeruginosa</i> infection under preventive and therapeutic administration conditions. Under the same conditions, OMVs also significantly alleviated pathological characteristics of lung injury, including pulmonary edema, pulmonary hemorrhage, and alveolar wall thickening. OMVs also significantly reduced bacterial burdens in peritoneal cavity, accompanied by a reduction in the number of viable bacteria capable of forming bacterial colonies. Pretreating macrophages and neutrophils with OMVs enhances their bactericidal ability. When bacteria were cocultured with treated cells, the number of viable bacteria capable of forming bacterial colonies was significantly reduced. OMVs themselves have not been shown to cause any lung injury or affect bacterial viability. Therefore, OMVs derived from X-ray-irradiated <i>P. aeruginosa</i> may not only be applied in prevention and treatment of diseases associated with <i>P. aeruginosa</i> infection, but also served as an excellent vaccine development platform.</p>","PeriodicalId":8167,"journal":{"name":"Apmis","volume":"132 9","pages":"646-656"},"PeriodicalIF":2.2,"publicationDate":"2024-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/apm.13444","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141257826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Aetiological profile of acute encephalitis syndrome in Assam, India, during a 4-year period from 2019 to 2022","authors":"Dharitree Sonowal, Ajanta Sharma, Kimmi Sarmah, Deepak Upadhaya, Sachin Kumar, Harpreet Kaur","doi":"10.1111/apm.13443","DOIUrl":"10.1111/apm.13443","url":null,"abstract":"<p>Acute encephalitis syndrome (AES) is a major public health concern in India as the aetiology remains unknown in the majority of cases with the current testing algorithm. We aimed to study the incidence of Japanese encephalitis (JE) and determine the aetiology of non-JE AES cases to develop an evidence-based testing algorithm. Cerebrospinal fluid (CSF) samples were tested for Japanese encephalitis virus by ELISA and polymerase chain reaction (PCR). Multiplex real-time PCR was done for <i>Dengue</i>, <i>Chikungunya</i>, <i>West Nile</i>, <i>Zika</i>, <i>Enterovirus</i>, <i>Epstein Barr Virus</i>, <i>Herpes Simplex Virus</i>, <i>Adenovirus</i>, <i>Cytomegalovirus</i>, <i>Herpesvirus 6</i>, <i>Parechovirus</i>, <i>Parvovirus B19</i>, <i>Varicella Zoster Virus</i>, Scrub typhus, Rickettsia species, <i>Leptospira</i>, <i>Salmonella</i> species, <i>Streptococcus pneumoniae</i>, <i>Haemophilus influenzae</i>, <i>Neisseria meningitidis,</i> Plasmodium species and by ELISA for Mumps and Measles virus. Of the 3173 CSF samples, 461 (14.5%) were positive for JE. Of the 334 non-JE AES cases, 66.2% viz. Scrub typhus (25.7%), <i>Mumps</i> (19.5%), <i>Measles</i> (4.2%), <i>Parvovirus B19</i> (3.9%) Plasmodium (2.7%), <i>HSV 1</i> and <i>2</i> (2.4%), <i>EBV</i> and <i>Streptococcus pneumoniae</i> (2.1% each), <i>Salmonella</i> and <i>HHV 6</i> (1.2% each) were predominant. Hence, an improved surveillance system and our suggested expanded testing algorithm can improve the diagnosis of potentially treatable infectious agents of AES in India.</p>","PeriodicalId":8167,"journal":{"name":"Apmis","volume":"132 9","pages":"638-645"},"PeriodicalIF":2.2,"publicationDate":"2024-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141257920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Clinical characteristics and risk factors of connective tissue disease complicated with bronchiectasis and pulmonary infection","authors":"Xuan Qi, Jiaying Yang, Hongtao Jin, Yuran Xiao, Ying Wang, Yiqing Zhang","doi":"10.1111/apm.13424","DOIUrl":"10.1111/apm.13424","url":null,"abstract":"<p>The clinical data from 118 CTD patients with bronchiectasis were collected and categorized into two groups: pulmonary infection present (n = 67) and absent (n = 51), for comparative analysis of characteristics and risk factors. Then, we analyzed and compared their demographics, disease characteristics, and risk factors for infection. Among the whole cohort (n = 118), the incidence of pulmonary infections was 56.78%. The occurrence of rheumatoid arthritis, systemic lupus erythematosus, and vasculitis was found to be associated with an increased risk of pulmonary infection. Sputum culture identified Pseudomonas aeruginosa and Klebsiella pneumoniae as the predominant pathogens in the infected group. Notably, symptoms such as joint pains (p = 0.018) and morning stiffness (p = 0.017) were significantly more common in the infected group compared to the noninfected group. Moreover, our findings revealed that elevated levels of C-reactive protein and complement C3, along with bronchial expansion observed on high-resolution computed tomography (HRCT), were significant independent factors in the infection group. Conversely, pulmonary interstitial changes identified through HRCT (OR: 0.135, 95% CI: 0.030–0.612, p = 0.009) were significantly associated with the non-infection group. Overall, this study provides valuable insights into managing CTD patients with bronchiectasis, emphasizing early detection and tailored approaches to prevent and treat pulmonary infections for better outcomes.</p>","PeriodicalId":8167,"journal":{"name":"Apmis","volume":"132 8","pages":"571-580"},"PeriodicalIF":2.2,"publicationDate":"2024-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141154611","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Beta-cell activity and development of Type 1 diabetes","authors":"Rikke Thea, Karsten Buschard","doi":"10.1111/apm.13441","DOIUrl":"10.1111/apm.13441","url":null,"abstract":"<p>Type 1 diabetes (T1D) is an autoimmune disease, resulting in diminished islet integrity and destruction of the insulin-secreting beta cells. In this review, we investigate the intrinsic relationship between the development of T1D and the activity of the beta cells. The idea was initially hypothesized in 1982 that an increased beta-cell activity would enhance the surface antigen expression and thereby attract the immune system. Later, other findings support this idea, including increased risk of T1D development during third trimester of pregnancy, and the difference in T1D incidence in Russian and Finnish Karelia due to different lifestyles. Other implications of high beta-cell activity, such as reduced sulfatide levels, formation of non-correct insulin molecules and an increase in IFN-alpha upon virus attack, can contribute to the development of T1D. A possible way to prevent the development of T1D is to diminish beta-cell activity, which has shown promising results in animal models.</p>","PeriodicalId":8167,"journal":{"name":"Apmis","volume":"133 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11669742/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141154600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Enhanced angiogenesis of human umbilical vein endothelial cells via THP-1-derived M2c-like macrophages and treatment with proteasome inhibitors ‘bortezomib and ixazomib’","authors":"Selin Engür-Öztürk, Elif Kaya-Tİlkİ, Zerrin Cantürk, Miriş Dİkmen","doi":"10.1111/apm.13426","DOIUrl":"10.1111/apm.13426","url":null,"abstract":"<p>The leading cause of cancer-related death is lung cancer, with metastasis being the most common cause of death. To elucidate the role of macrophages in lung cancer and angiogenesis processes, we established an in vitro co-culture model of A549 or HUVEC with THP-1 cells that polarized to M2c macrophages with hydrocortisone. The proteasome inhibitors bortezomib and ixazomib were investigated for their effects on proliferation, invasion, migration, metastasis, and angiogenesis pathways. The effects of bortezomib and ixazomib on gene expression in gene panels, including crucial genes related to angiogenesis and proteasomes, were investigated after the co-culture model to determine these effects at the molecular level. In conclusion, bortezomib and ixazomib showed antiproliferative effects in both cells, as well as in M2c macrophage co-culture. M2c macrophages also increased invasion in A549 cells and both invasion and migration in HUVEC. mRNA expression upregulation, specifically in the NFKB and VEGF genes, supported the metastatic and angiogenic effects found in A549 and HUVEC with M2c macrophage co-culture. Additionally, bortezomib inhibited the VEGFB pathway in HUVEC and NFKB1 in A549 cells. The significant findings obtained as a result of this study will provide information regarding angiogenesis induced by M2 macrophages.</p>","PeriodicalId":8167,"journal":{"name":"Apmis","volume":"132 8","pages":"594-607"},"PeriodicalIF":2.2,"publicationDate":"2024-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/apm.13426","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141074955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Fumarate hydratase–deficient renal cell carcinoma: an oncology care institutional experience","authors":"Meenakshi Kamboj, Gurudutt Gupta, Sunil Pasricha, Anurag Mehta, Sudhir Rawal, Amitabh Singh, Anila Sharma, Garima Durga, Divya Bansal, Himanshi Diwan","doi":"10.1111/apm.13425","DOIUrl":"10.1111/apm.13425","url":null,"abstract":"<p>Renal cell carcinoma (RCC) accounts for 2% of all cancer cases worldwide, and majority are sporadic. The latest World Health Organization (WHO) classification of renal cell tumors (fifth edition, 2022) has molecularly defined renal tumor entities, which includes fumarate hydratase (FH)–deficient RCC. FH-deficient RCC is an aggressive carcinoma caused by pathogenic alterations in FH gene, seen in 15% of patients with hereditary leiomyomatosis and renal cell cancer syndrome (HLRCC) syndrome. These tumors occur more frequently at a younger age and present at an advanced stage, carrying a dismal prognosis. We report a series of 10 cases of FH-deficient RCC. The mean age was 49.8 years, and all cases presented in advanced stages (III and IV). Morphologically, the cases had varied architectural patterns with characteristic eosinophilic macronucleoli and perinucleolar halo. On immunohistochemistry (IHC), all showed diffuse nucleo-cytoplasmic expression of S-(2-succino)-cysteine (2-SC), with loss of FH in seven cases. FH-deficient RCCs are aggressive neoplasms and can be diagnosed using specific IHC markers (FH and 2-SC). These patients should undergo germline testing for FH gene mutation, genetic counseling, and surveillance of family members.</p>","PeriodicalId":8167,"journal":{"name":"Apmis","volume":"132 8","pages":"544-552"},"PeriodicalIF":2.2,"publicationDate":"2024-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141075006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Magne Bech, Marianne Skov, Ida S. B. Andersen, Christian von Buchwald, Kasper Aanæs
{"title":"The criteria for chronic rhinosinusitis in children with cystic fibrosis are rarely fulfilled after initiation of CFTR modulator treatment","authors":"Magne Bech, Marianne Skov, Ida S. B. Andersen, Christian von Buchwald, Kasper Aanæs","doi":"10.1111/apm.13427","DOIUrl":"10.1111/apm.13427","url":null,"abstract":"<p>The vast majority of people with cystic fibrosis (pwCF) have untreated secondary chronic rhinosinusitis (CRS). Whereas the introduction of the cystic fibrosis transmembrane conductance regulator modulator (CFTRm) treatment regime has improved the lung function of pwCF, few studies have been published examining the effect on sinonasal symptoms in children. Our aim was to explore the effect of double CFTRm treatment on CRS and olfaction in children with CF. pwCF were included in this non-randomized cross-sectional study, where an otolaryngologist performed a complete ENT examination before initiating treatment with elaxacaftor/tezacaftor/ivacaftor (ETI). Twenty-three pwCF aged 6–12 years were included. Eighteen of 23 patients were on a double CFTRm treatment, and 5 patients were CFTRm naive, respectively. Altogether, 19 had normal olfaction, 20 had none or mild CRS symptoms according to SNOT-22, and 14 had a normal endoscopy. None of the patients had symptoms of chronic rhinosinusitis lasting for more than 12 weeks, thus none of the patients fulfilled the criteria for CRS. Children with CF treated with double CFTRm have few to no symptoms of CRS and normal olfaction, which is an improvement compared with children following treatment modalities prior to CFTRm.</p>","PeriodicalId":8167,"journal":{"name":"Apmis","volume":"132 9","pages":"625-631"},"PeriodicalIF":2.2,"publicationDate":"2024-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/apm.13427","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141075008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}