scholarly journals Bromhexine Hydrochloride: Potential Approach to Prevent or Treat Early Stage COVID-19

2020 ◽  
Author(s):  
Dmitry Stepanov ◽  
Peter Lierz

The most critical step during viral infection is when viruses enter the cell. A novel coronavirusSARS-CoV-2 penetrates into alveolar cells through the transmembrane serine proteaseTMPRSS2. Extensive studies show that a clinically approved drug from Japan and South Korea,camostat mesylate inactivates TMPRSS2 in order to prevent the infection. However, these basicstudies have not been translated to “bedside”, and their effectiveness has not been clinicallyconfirmed yet. Here, we describe another potential antiviral substance, commonly used in theclinical practice as a mucolytics – bromhexine hydrochloride. Causing only few mild sideeffects, it may serve as either a new therapeutic strategy during early stages of the disease or apreventive agent blocking SARS-CoV-2 entry into alveolar cells through TMPRSS2.Therefore, in this review, we discuss these possible approaches based on the current data.

Healthcare ◽  
2020 ◽  
Vol 8 (3) ◽  
pp. 229 ◽  
Author(s):  
Min Cheol Chang ◽  
Jong Hyun Baek ◽  
Donghwi Park

South Korea has experienced difficulty in controlling the spread of the novel coronavirus disease (COVID-19) during the early stages of the outbreak. South Korea remains passionately determined to protect Koreans against COVID-19 and through trial and error hopes to improve the strategies used to limit the outbreak. Here, we review how COVID-19 spread and what prevention strategies were implemented during the early stages of the outbreak in South Korea. We investigated online newspapers published in South Korea from 21 January 2020 to 20 March 2020, and reviewed academic medical articles related to COVID-19. Additionally, we acquired data on COVID-19 cases through the official website for COVID-19 in South Korea. To date, numerous measures have been applied by the government and the medical community during the early stages of the COVID-19 outbreak including the reporting of methods for diagnostic testing, patient classification, the introduction of drive-through screening centers, COVID-19 preventive measures, implementation of government policies for the shortage of face masks, and entry restrictions. Here, we present data from the early stages of the COVID-19 outbreak and measures to prevent its spread in South Korea. We believe that sharing the experience of South Korea during the COVID-19 outbreak can help other countries to implement strategies to prevent its rapid transmission.


Author(s):  
Yubin Lee ◽  
Byung-Woo Kim ◽  
Shin-Woo Kim ◽  
Hyunjin Son ◽  
Boyoung Park ◽  
...  

Background: since the coronavirus disease (COVID-19) was first reported in 2019, South Korea has enforced isolation of patients with confirmed cases of COVID-19, as well as quarantine for close contacts of individuals diagnosed with COVID-19 and persons traveling from abroad, in order to contain its spread. Precautionary behavior practices and psychological characteristics of confirmed and quarantined persons were investigated for planning pandemic recovery and preparedness. Methods: this study was conducted with 1716 confirmed patients and quarantined persons in Daegu and Busan, regions where a high number of cases were confirmed during the early stage of the COVID-19 outbreak in South Korea. We collected online survey data from 23 April to 20 May 2020, in Daegu, and 28 April to 27 May 2020, in Busan, in cooperation with Daegu and Busan Infectious Disease Control Centers and public health centers in the regions. COVID-19 symptoms, pre-cautionary behavior practices, psychological states, and the need for improvement in isolation/quarantine environments were examined using an online survey. Results: compared to patients infected with coronavirus, quarantined persons engaged in more hygiene-related behaviors (e.g., hand washing, cough etiquette, and proper mask-wearing) and social distancing. COVID-19 patients had a strong fear of stigma, while quarantined persons had a strong fear of contracting COVID-19. Study participants responded that it was necessary to provide financial support and adequate information during isolation/quarantine. Conclusions: the study highlights the importance of precautionary behavior to prevent COVID-19 infection and the need to provide support (both psychological and financial) to patients and quarantined persons, to reinforce effective communication, social solidarity, and public health emergency preparedness (PHEP) in a pandemic situation.


Author(s):  
Siamack Sabrkhany ◽  
Marijke J. E. Kuijpers ◽  
Mirjam G. A. oude Egbrink ◽  
Arjan W. Griffioen

AbstractPlatelets have an important role in tumor angiogenesis, growth, and metastasis. The reciprocal interaction between cancer and platelets results in changes of several platelet characteristics. It is becoming clear that analysis of these platelet features could offer a new strategy in the search for biomarkers of cancer. Here, we review the human studies in which platelet characteristics (e.g., count, volume, protein, and mRNA content) are investigated in early-stage cancer. The main focus of this paper is to evaluate which platelet features are suitable for the development of a blood test that could detect cancer in its early stages.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Reham A. Aboelwafa ◽  
Walid Ismail Ellakany ◽  
Marwa A. Gamaleldin ◽  
Marwa A. Saad

Abstract Background Hepatocellular carcinoma and hepatitis C are strongly associated. The current work aimed to study the expression levels of microRNA-331-3p and microRNA-23b-3p as propable biomarkers for detecting liver cancer (HCC) at its early stages in patients with HCV-related liver cirrhosis. The current prospective study included two hundred participants, divided into three groups: group I, 100 patients with HCV-related liver cirrhosis; group II, 50 HCC patients at early stages; and group III, 50 apparentlyhealthy controls. All patients had routine laboratory workup and ultrasound hepatic assessment. Values of microRNA-331-3p and microRNA-23b-3p were measured by real-time quantitative PCR. Results Levels of miR-331-3p were significantly higher in HCC patients than in cirrhotic patients and controls (p < 0.001), while levels of miR-23b-3p were significantly lower in HCC patients compared to cirrhotics and controls (p < 0.001). ROC curve revealed that miR-23b-3p had 80% sensitivity and 74% specificity, miR-331-3p had 66% sensitivity and 61% specificity, and AFP had 64% sensitivity and 61% specificity of 61% in discrimination between HCC patients from controls. Conclusion Serum miR-23b-3p is a more effective predictor than miR-331-3p and AFP for the development of hepatocellular carcinoma in hepatitis C (HCV)-related cirrhotic patients.


Nature ◽  
1962 ◽  
Vol 193 (4813) ◽  
pp. 348-349 ◽  
Author(s):  
J. F. Ph. HERS ◽  
R. G. J. WILLIGHAGEN ◽  
D. A. J. TYRRELL ◽  
LIDY van der KUIP ◽  
MARIA A. C. HOS

2016 ◽  
Vol 62 (11) ◽  
pp. 1482-1491 ◽  
Author(s):  
Nora Brychta ◽  
Thomas Krahn ◽  
Oliver von Ahsen

Abstract BACKGROUND Since surgical removal remains the only cure for pancreatic cancer, early detection is of utmost importance. Circulating biomarkers have potential as diagnostic tool for pancreatic cancer, which typically causes clinical symptoms only in advanced stage. Because of their high prevalence in pancreatic cancer, KRAS proto-oncogene, GTPase [KRAS (previous name: Kirsten rat sarcoma viral oncogene homolog)] mutations may be used to identify tumor-derived circulating plasma DNA. Here we tested the diagnostic sensitivity of chip based digital PCR for the detection of KRAS mutations in circulating tumor DNA (ctDNA) in early stage pancreatic cancer. METHODS We analyzed matched plasma (2 mL) and tumor samples from 50 patients with pancreatic cancer. Early stages (I and II) were predominant (41/50) in this cohort. DNA was extracted from tumor and plasma samples and tested for the common codon 12 mutations G12D, G12V, and G12C by chip-based digital PCR. RESULTS We identified KRAS mutations in 72% of the tumors. 44% of the tumors were positive for G12D, 20% for G12V, and 10% for G12C. One tumor was positive for G12D and G12V. Analysis of the mutations in matched plasma samples revealed detection rates of 36% for G12D, 50% for G12V, and 0% for G12C. The detection appeared to be correlated with total number of tumor cells in the primary tumor. No KRAS mutations were detected in 20 samples of healthy control plasma. CONCLUSIONS Our results support further evaluation of tumor specific mutations as early diagnostic biomarkers using plasma samples as liquid biopsy.


2021 ◽  
pp. 1-15
Author(s):  
Cristina Simonet ◽  
Miquel A. Galmes ◽  
Christian Lambert ◽  
Richard N. Rees ◽  
Tahrina Haque ◽  
...  

Background: Bradykinesia is the defining motor feature of Parkinson’s disease (PD). There are limitations to its assessment using standard clinical rating scales, especially in the early stages of PD when a floor effect may be observed. Objective: To develop a quantitative method to track repetitive tapping movements and to compare people in the early stages of PD, healthy controls, and individuals with idiopathic anosmia. Methods: This was a cross-sectional study of 99 participants (early-stage PD = 26, controls = 64, idiopathic anosmia = 9). For each participant, repetitive finger tapping was recorded over 20 seconds using a smartphone at 240 frames per second. From each video, amplitude between fingers, frequency (number of taps per second), and velocity (distance travelled per second) was extracted. Clinical assessment was based on the motor section of the MDS-UPDRS. Results: People in the early stage of PD performed the task with slower velocity (p <  0.001) and with greater frequency slope than controls (p = 0.003). The combination of reduced velocity and greater frequency slope obtained the best accuracy to separate early-stage PD from controls based on metric thresholds alone (AUC = 0.88). Individuals with anosmia exhibited slower velocity (p = 0.001) and smaller amplitude (p <  0.001) compared with controls. Conclusion: We present a simple, proof-of-concept method to detect early motor dysfunction in PD. Mean tap velocity appeared to be the best parameter to differentiate patients with PD from controls. Patients with anosmia also showed detectable differences in motor performance compared with controls which may suggest that some are in the prodromal phase of PD.


2022 ◽  
pp. 7-15
Author(s):  
T. I. Bogatyreva ◽  
A. O. Afanasov ◽  
A. Yu. Terekhova ◽  
N. A. Falaleeva

Rationale. In the early stages of classical Hodgkin’s lymphoma (cHL), the cure rate reaches 85–95 %, but the long-term effects of therapy can worsen overall survival. Current trials for early stages of Hodgkin’s lymphoma with favorable prognosis address the task of maintaining cure rates while reducing sequelae. For early unfavorable stages, the challenge is to improve cure rate without increasing toxicity.Purpose. To assess the potential significance of individual risk factors for optimal choice of the first line chemotherapy in early-stage Hodgkin lymphoma.Materials and methods. This single-center retrospective study included 290 patients with early stage cHL who had received ABVD – based (n = 249; 86 %) or BEACOPP‑21 – based (n = 41; 14 %) combined modality therapy from 2000 to 2017. Progression-free survival (PFS) and overall survival (OS) were assessed in Cox regression analysis including 12 clinical parameters.Main results. At a median follow up of 60 months for the entire group, OS was 95 % and PFS was 89 %. In a multivariate analysis PFS, at 5 years, was significantly inferior in patients with mediastinal bulk, baseline lymphocytopenia (≤ 0.6 × 109/L, р = 0.002; < 1.0 × 109/L, р = 0.000) and male gender; OS was inferior only in patients with an absolute lymphocytopenia (AL). In patients with AL, PFS after ABVD-based regimen was, respectively, 12 % in the high-risk group with mediastinal bulk and 56 % without it. PFS of patients without AL when treated with ABVD did not differ compared to BEACOPP‑21 within the same prognostic group: 95.2 % vs. 92.3 % for non-bulky and 86.4 % vs. 84.2 % for bulky disease. In the absence of AL, mediastinal bulk remained the main and only risk factor in multivariate analysis.Conclusions. The ABVD regimen is highly effective in the first line of chemotherapy for cHL, except for cases with baseline lymphocytopenia, in which the early usage of the BEACOPP regimen in the escalated or 14-day variants might be justified. In patients with mediastinal bulk, standard chemotherapy is not effective enough even in the absence of AL; therefore, if an intermediate PET/CT scan is available, it seems more appropriate to use a milder ABVD regimen on the first line and leave intensive therapy for patients with proven refractory disease. Prospects for improving the efficiency are opened with the new N-AVD and A-AVD schemes, the benefits of which should be evaluated, first of all, in patients with AL and mediastinal bulk.


2021 ◽  
Vol 130 (4) ◽  
pp. 987-992
Author(s):  
Giacomo Pucci ◽  
Stefano Ministrini ◽  
Elisa Nulli Migliola ◽  
Luisa Nunziangeli ◽  
Francesca Battista ◽  
...  

Serum myostatin, a proteic compound known to regulate skeletal muscle growth and production of extracellular matrix, is independently associated with increased aortic stiffness in healthy male adolescents. This result sheds lights on the potential novel role of myokines in the early development of systemic hypertension and early vascular aging, as well as on their inhibition as a hypothetical therapeutic strategy to counteract vascular aging at an early stage of physical development.


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