scholarly journals What we know and don’t know on SARS-CoV-2 and COVID-19

Medwave ◽  
2021 ◽  
Vol 21 (04) ◽  
pp. e8198-e8198
Author(s):  
Ignacio Silva-Ayarza ◽  
Vivienne C Bachelet
Keyword(s):  
Public Health ◽  
Disease Prevention ◽  
Clinical Presentation ◽  
Diagnostic Techniques ◽  
Therapeutic Strategies ◽  
Pathophysiological Mechanisms ◽  
Rapid Spread ◽  
Therapeutic Alternatives

Coronavirus disease 2019 (COVID-19), caused by the SARS-CoV-2 virus discovered in December 2019 in Wuhan, China, has had an enormous impact on public health worldwide due to its rapid spread and pandemic behavior, challenges in its control and mitigation, and few therapeutic alternatives. In this review, we summarize the pathophysiological mechanisms, clinical presentation, and diagnostic techniques. In addition, the main lineages and the different strategies for disease prevention are reviewed, with emphasis on the development of vaccines and their different platforms. Finally, some of the currently available therapeutic strategies are summarized. Throughout the article, we point out the current knowns and unknowns at the time of writing this article.

scholarly journals Targeted Therapeutic Strategies in the Battle Against Pathogenic Bacteria

2021 ◽  
Vol 12 ◽  
Author(s):  
Bingqing Yang ◽  
Dan Fang ◽  
Qingyan Lv ◽  
Zhiqiang Wang ◽  
Yuan Liu
Keyword(s):  
Public Health ◽  
Pathogenic Bacteria ◽  
Phage Therapy ◽  
Critical Role ◽  
Therapeutic Strategies ◽  
Mechanisms Of Action ◽  
Modern Technology ◽  
Rapid Spread ◽  
Target Therapies ◽  
Global Threat

The emergence and rapid spread of antibiotic resistance in pathogenic bacteria constitute a global threat for public health. Despite ongoing efforts to confront this crisis, the pace of finding new potent antimicrobials is far slower than the evolution of drug resistance. The abuse of broad-spectrum antibiotics not only accelerates the formation of resistance but also imposes a burden on the intestinal microbiota, which acts a critical role in human homeostasis. As such, innovative therapeutic strategies with precision are pressingly warranted and highly anticipated. Recently, target therapies have achieved some breakthroughs by the aid of modern technology. In this review, we provide an insightful illustration of current and future medical targeted strategies, including narrow-spectrum agents, engineered probiotics, nanotechnology, phage therapy, and CRISPR-Cas9 technology. We discuss the recent advances and potential hurdles of these strategies. Meanwhile, the possibilities to mitigate the spread of resistance in these approaches are also mentioned. Altogether, a better understanding of the advantages, disadvantages, and mechanisms of action of these targeted therapies will be conducive to broadening our horizons and optimizing the existing antibacterial approaches.

Dealing with COVID-19: lessons learned from the Italian experience

Coronaviruses ◽  
2020 ◽  
Vol 01 ◽  
Author(s):  
Silvana Mirella Aliberti ◽  
Francesco De Caro ◽  
Giovanni Boccia ◽  
Rosario Caruso ◽  
Mario Capunzo
Keyword(s):  
Public Health ◽  
Risk Assessment ◽  
Lessons Learned ◽  
Coherent System ◽  
Effective Response ◽  
Medical Practitioners ◽  
Italian Experience ◽  
Rapid Spread ◽  
Public Health Officials ◽  
Future Plans

: Italy was the first western nation affected by the pandemic and was observed as a pilot case in the management of the new coronavirus epidemic. The outbreak of COVID-19 disease has been very difficult in Italy, on June 25, 2020 there are 239,821 total cases of which 33,592 deaths nationwide. Three lessons emerged from this experience that can serve as a blueprint to improve future plans for the outbreak of viruses. First, early reports on the spread of COVID-19 can help inform public health officials and medical practitioners in effort to combat its progression; second, inadequate risk assessment related to the urgency of the situation and limited reporting to the virus has led the rapid spread of COVID-19; third, an effective response to the virus had to be undertaken with coherent system of actions and simultaneously.

SARS-CoV-2 Biology Insights, Part I. Genome-wide structure and druggability: literature review (Preprint)

2020 ◽  
Author(s):  
Laura Lafon-Hughes
Keyword(s):  
Side Effects ◽  
Literature Review ◽  
Host Cell ◽  
Nucleoside Analogs ◽  
Viral Proteins ◽  
Therapeutic Strategies ◽  
Adverse Side Effects ◽  
Viral Proteases ◽  
Genome Wide ◽  
Therapeutic Alternatives

BACKGROUND COVID-19 pandemic prompts the study of coronavirus biology and search of putative therapeutic strategies. OBJECTIVE To compare SARS-CoV-2 genome-wide structure and proteins with other coronaviruses, focusing on putative coronavirus-specific or SARS-CoV-2 specific therapeutic designs. METHODS The genome-wide structure of SARS-CoV-2 was compared to that of SARS and other coronaviruses in order to gain insights, doing a literature review through Google searches. RESULTS There are promising therapeutic alternatives. Host cell targets could be modulated to hamper viral replication, but targeting viral proteins directly would be a better therapeutic design, since fewer adverse side effects would be expected. CONCLUSIONS Therapeutic strategies (Figure 1) could include the modulation of host targets (PARPs, kinases) , competition with G-quadruplexes or nucleoside analogs to hamper RDRP. The nicest anti-CoV options include inhibitors of the conserved essential viral proteases and drugs that interfere ribosome slippage at the -1 PRF site.

scholarly journals How the Heart Was Involved in COVID-19 during the First Pandemic Phase: A Review

Epidemiologia ◽  
2021 ◽  
Vol 2 (1) ◽  
pp. 124-139
Author(s):  
Andrea Canalella ◽  
Ermanno Vitale ◽  
Francesca Vella ◽  
Paola Senia ◽  
Emanuele Cannizzaro ◽  
...  
Keyword(s):  
Public Health ◽  
Diabetes Mellitus ◽  
Scientific Community ◽  
Respiratory Virus ◽  
Clinical Manifestations ◽  
Hubei Province ◽  
Public Health Emergency ◽  
Converting Enzyme ◽  
Pathophysiological Mechanisms ◽  
Cardiovascular Involvement

Coronavirus disease (COVID-19) was first observed in Wuhan, Hubei Province (China) in December 2019, resulting in an acute respiratory syndrome. Only later was COVID-19 considered a public health emergency of international concern and, on 11 March 2020, the WHO classified it as pandemic. Despite being a respiratory virus, the clinical manifestations are also characterized by cardiological involvement, especially in patients suffering from previous comorbidities such as hypertension and diabetes mellitus, its complications being potentially serious or fatal. Despite the efforts made by the scientific community to identify pathophysiological mechanisms, they still remain unclear. A fundamental role is played by the angiotensin 2 converting enzyme, known for its effects at the cardiovascular level and for its involvement in COVID-19 pathogenesis. The goal of this paper was to highlight the mechanisms and knowledge related to cardiovascular involvement during the first pandemic phase, as well as to emphasize the main cardiological complications in infected patients.

Schwannomas of the Nose and Paranasal Sinuses

1993 ◽  
Vol 7 (2) ◽  
pp. 59-65 ◽  
Author(s):  
John R. Wanamaker ◽  
Hayes H. Wanamaker ◽  
Bernard Kotton ◽  
Greg D. Akers ◽  
Pierre Lavertu
Keyword(s):  
Paranasal Sinuses ◽  
Clinical Presentation ◽  
Clinical Course ◽  
Diagnostic Techniques ◽  
Therapeutic Approaches ◽  
Management Philosophy ◽  
Nose And Paranasal Sinuses ◽  
Therapeutic Tools ◽  
Diagnostic Work ◽  
Work Up

Schwannomas are benign neoplasms arising from the peripheral nerve sheath. The sinonasal tract is an unusual location for these neoplasms. Because of their rarity, few series have been reported. Five previously unreported cases of schwannomas of the nose and paranasal sinuses are presented that illustrate the spectrum of disease. The clinical presentation, diagnostic work-up, clinical course, and diverse therapeutic approaches will be discussed. A management philosophy based on the diversity of these tumors and their clinical behavior, and incorporating the new diagnostic and therapeutic tools available to the clinician will be presented. The implications of newer diagnostic techniques including sinonasal endoscopy, magnetic resonance imaging, and immuno-chemistry in the diagnosis and treatment of these tumors will be discussed.

scholarly journals Conservative management of eosinophilic enteritis presenting with acute abdominal syndrome

2013 ◽  
pp. 124-127
Author(s):  
Marco Bassi ◽  
Gelorma Belmonte ◽  
Carmelo Luigiano ◽  
Paola Billi ◽  
Angela Salerno ◽  
...  
Keyword(s):  
Clinical Presentation ◽  
Relevant Literature ◽  
Inflammatory Cells ◽  
Therapeutic Strategies ◽  
Acute Onset ◽  
Peripheral Eosinophilia ◽  
Diffuse Infiltration ◽  
Appropriate Therapy ◽  
Specific Symptoms

Eosinophilic enteritis, an increasing recognized condition, is rare and often presents with non-specific symptoms. We report a case of a 46-year old female who presented with acute onset abdominal pain and nausea associated with ascites, small bowel thickening and peripheral eosinophilia. Diagnosis was confirmed by biopsies taken at esophagogastroduodenoscopy demonstrating diffuse infiltration by inflammatory cells, mainly eosinophils. Appropriate therapy was instituted. The patient recovered well and was symptom-free at 1-month follow up. In this report, we discuss the clinical presentation and the diagnostic criteria of the eosinophilic enteritis, and examine the pathophysiological theories and therapeutic strategies. The relevant literature on eosinophilic enteritis is summarized.

scholarly journals CIRCULATING CLONES OF COMMUNITY-ACQUIRED METHICILLIN-RESISTANT STAPHYLOCOCCUS AUREUS (CA-MRSA) IN WESTERN AUSTRALIA IN THE PAST 11 YEARS (2002-2013)

2016 ◽  
Vol 78 (5) ◽  
Author(s):  
A. M. Setiawan
Keyword(s):  
Public Health ◽  
Staphylococcus Aureus ◽  
Disease Prevention ◽  
Infection Control ◽  
Western Australia ◽  
Methicillin Resistant Staphylococcus Aureus ◽  
Methicillin Resistant ◽  
Health Concerns ◽  
The Past ◽  
Mrsa Strains

Methicillin-resistant Staphylococcus aureus (MRSA) is one of the most complicated problems in infection control and disease prevention. Imported strains or group of similar strains called clones were introduced from other states within Australia and also from other countries. Western Australia (WA) MRSA clones known to be the most predominant clones circulating in Western Australia (WA). However, MRSA strains originally from other states and countries outside Australia (imported) have increased in number in the last decades. The aim of this study was to examine the epidemiology of CA MRSA clones in Western Australia for the past 11 year’s period (2003-2013). There were 10 predominant clones of CA-MRSA circulating in WA with WA MRSA-1 (32,82%), Queensland (22,67 %) and WA MRSA-2 (22,67 %) clones as the top three predominant clones. The percentage of PVL positive CA-MRSA clones such as Queensland (Qld) clone has been increasing significantly (R2=0,67) from 2,38 % in 2002 to 25,69% in 2013. In contrast, the percentages of two major PVL negative clones, WA MRSA-1 and WA MRSA 2, have been decreasing nearly by half from 52,38 % to 27,71 % and 30,95 % to 16,59 % respectively in the last 11 years. PVL positive clones have been introduced in WA from other states and overseas in the last eleven years. Due to the virulence factor of PVL toxin, the emergence of PVL positive CA-MRSA should be considered as public health concerns.

scholarly journals Modeling Human Cardiac Arrhythmias: Insights from Zebrafish

2022 ◽  
Vol 9 (1) ◽  
pp. 13
Author(s):  
Sébastien Gauvrit ◽  
Jaclyn Bossaer ◽  
Joyce Lee ◽  
Michelle M. Collins
Keyword(s):  
Public Health ◽  
Cardiac Arrhythmia ◽  
Cardiac Arrhythmias ◽  
Heart Rhythm ◽  
Therapeutic Strategies ◽  
Adult Zebrafish ◽  
Disease Mechanisms ◽  
New Models ◽  
Public Health Challenges

Cardiac arrhythmia, or irregular heart rhythm, is associated with morbidity and mortality and is described as one of the most important future public health challenges. Therefore, developing new models of cardiac arrhythmia is critical for understanding disease mechanisms, determining genetic underpinnings, and developing new therapeutic strategies. In the last few decades, the zebrafish has emerged as an attractive model to reproduce in vivo human cardiac pathologies, including arrhythmias. Here, we highlight the contribution of zebrafish to the field and discuss the available cardiac arrhythmia models. Further, we outline techniques to assess potential heart rhythm defects in larval and adult zebrafish. As genetic tools in zebrafish continue to bloom, this model will be crucial for functional genomics studies and to develop personalized anti-arrhythmic therapies.

scholarly journals Rapid spread of the SARS-CoV-2 Delta variant in some French regions, June 2021

2021 ◽  
Vol 26 (28) ◽  
Author(s):  
Samuel Alizon ◽  
Stéphanie Haim-Boukobza ◽  
Vincent Foulongne ◽  
Laura Verdurme ◽  
Sabine Trombert-Paolantoni ◽  
...  
Keyword(s):  
Public Health ◽  
Confidence Interval ◽  
Rapid Growth ◽  
Rt Pcr ◽  
Health Authorities ◽  
Rapid Spread ◽  
Public Health Authorities ◽  
Alpha Variant

We analysed 9,030 variant-specific RT-PCR tests performed on SARS-CoV-2-positive samples collected in France between 31 May and 21 June 2021. This analysis revealed rapid growth of the Delta variant in three of the 13 metropolitan French regions and estimated a +79% (95% confidence interval: 52–110%) transmission advantage compared with the Alpha variant. The next weeks will prove decisive and the magnitude of the estimated transmission advantages of the Delta variant could represent a major challenge for public health authorities.

scholarly journals INCIDENCE AND CLINICAL SIGNIFICANCE OF HIGH GRADE PROSTATIC INTRAEPITHELIAL NEOPLASIA IN TURP SPECIFIMENS

2020 ◽  
pp. 1-5
Author(s):  
B. Pavan Kumar ◽  
Imran Ali ◽  
Anwar Miya ◽  
Kishan Kishan
Keyword(s):  
Diagnostic Criteria ◽  
Prostatic Carcinoma ◽  
Invasive Carcinoma ◽  
Clinical Presentation ◽  
Intraepithelial Neoplasia ◽  
Diagnostic Techniques ◽  
Transurethral Resection Of Prostate ◽  
Low Grade ◽  
High Grade ◽  
Precancerous Condition

BACKGROUND : PIN is a well known precancerous condition of prostatic carcinoma. Transurethral resection of prostate has become the most prominent and the easiest way, to morphologically evaluate lesions of PIN. But clinicians are sometimes confused by the grading that is given in the report. So there is a need to define the diagnostic criteria and differential diagnosis of PIN using newer diagnostic techniques to assist in the better diagnosis and grading. AIMS AND OBJECTIVES: To evaluate whether the diagnostic criteria can be defined PIN and using newer techniques for PIN grading to improve the clinical management of patients with prostatic lesions. MATERIALS AND METHODS: This study will be done in the Department of Pathology MGM Hospitals, Warangal for a period of 2 years and includes consecutive cases of TURP specimens from the patients who present with obstructive symptoms as a major clinical presentation and correlated with PSA levels. INCLULSION CRITERIA: Patients who present with obstructive symptoms as a major clinical presentation. RESULTS: 1.160 cases of TURP specimens were studied out of which 53 (33.12%) cases are PIN. BPH -78 (48/74%), PC-15 (9.37%), SM-14 (8.75%) 2. Majority cases are low grade PIN 34 out of 53 cases (21.25%) High Grade PIN 19 out of 53cases. (11.87%) 3. High Grade PIN and prostatic Carcinoma shared increased incidence and severity with advancing age in the study. Majority of HG PIN cases in our study noted in (70-79 years of age) 4. The risk of carcinoma is more in cases of High Grade PIN (68.42%) than in low grade PIN (17.64%) 5. This warrants are need for repeat prostatic biopsies to diagnose the invasive carcinoma in patient with High grade PIN.

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