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Phage therapy, a salvage treatment for multidrug-resistant bacteria causing infective endocarditis

Research Abstract

Infective endocarditis (IE) is defined as an infection of the endocardium, or inner surface of the heart, most frequently affecting the heart valves or implanted cardiac devices. Despite its rarity, it has a high rate of morbidity and mortality. IE generally occurs when bacteria, fungi, or other germs from another part of the body, such as the mouth, spread through the bloodstream and attach to damaged areas in the heart. The epidemiology of IE has changed as a consequence of aging and the usage of implantable cardiac devices and heart valves. The right therapeutic routes must be assessed to lower complication and fatality rates, so this requires early clinical suspicion and a fast diagnosis. It is urgently necessary to create new and efficient medicines to combat multidrug-resistant bacterial (MDR) infections because of the increasing threat of antibiotic resistance on a worldwide scale. MDR bacteria that cause IE can be treated using phages rather than antibiotics to combat MDR bacterial strains. This review will illustrate how phage therapy began and how it is considered a powerful potential candidate for the treatment of MDR bacteria that cause IE. Furthermore, it gives a brief about all reported clinical trials that demonstrated the promising effect of phage therapy in combating resistant bacterial strains that cause IE and how it will become a hope in future medicine.

Research Authors
Helal F Hetta, Zainab I Rashed, Yasmin N Ramadan, Israa MS Al-Kadmy, Soheir M Kassem, Hesham S Ata, Wedad M Nageeb
Research Date
Research Journal
Biomedicines
Research Publisher
MDPI
Research Rank
International
Research Vol
11
Research Year
2023

Nanotechnology-Based Strategies to Combat Multidrug-Resistant Candida auris Infections

Research Abstract

An emerging multidrug-resistant pathogenic yeast called Candida auris has a high potential to spread quickly among hospitalized patients and immunodeficient patients causing nosocomial outbreaks. It has the potential to cause pandemic outbreaks in about 45 nations with high mortality rates. Additionally, the fungus has become resistant to decontamination techniques and can survive for weeks in a hospital environment. Nanoparticles might be a good substitute to treat illnesses brought on by this newly discovered pathogen. Nanoparticles have become a trend and hot topic in recent years to combat this fatal fungus. This review gives a general insight into the epidemiology of C. auris and infection. It discusses the current conventional therapy and mechanism of resistance development. Furthermore, it focuses on nanoparticles, their different types, and up-to-date trials to evaluate the promising efficacy of nanoparticles with respect to C. auris.

Research Authors
Helal F Hetta, Yasmin N Ramadan, Israa MS Al-Kadmy, Noura H Abd Ellah, Lama Shbibe, Basem Battah
Research Date
Research Journal
Pathogen
Research Member
Research Publisher
MDPI
Research Year
2023

COVID-19 associated Mucormycosis among ICU patients: risk factors, control, and challenges

Research Abstract

The severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) pandemic is still difficult to be controlled. The spread of this virus and the emergence of new variants are considered a great challenge worldwide. Disturbance in infection control guidelines implementation, use of steroids, antibiotics, hospital crowdedness, and repeated use of oxygen masks during the management of critically ill COVID-19 patients lead to an increase in the rate of opportunistic infections. So, patients need to fight both the virus with its different variants and opportunistic pathogens including bacteria and fungi especially patients with diabetes mellitus, malignancy, or those who undergo hemodialysis and receive deferoxamine. During the pandemic, many cases of Mucormycosis associated with COVID-19 infection were observed in many countries. In this review, we discuss risk factors that increase the chance of infection by opportunistic pathogens, especially fungal pathogens, recent challenges, and control measures.

Research Authors
Rehab Mahmoud Abd El-Baky, Esraa R Shady, Ramadan Yahia, Fatma Y Ahmed, Mohamed Ramadan, Hala Rady Ahmed, Israa MS Al-Kadmy, Yasmin N Ramadan, Helal F Hetta
Research Date
Research Journal
AMB Express
Research Member
Research Year
2023

Assessment of Cerebrovascular and Cognitive Changes in Chronic Hepatitis C Patients

Research Abstract

Background

Hepatitis C viral (HCV) infection is associated with systemic inflammation and metabolic complications that might predispose patients to cerebrovascular atherosclerosis and may report neurocognitive complaints.

Objective

This case-control study aimed to assess cerebrovascular and cognitive changes in patients with chronic hepatitis C (CHC) infection.

Patients and methods

Transcranial color Doppler assessment of cerebrovascular reactivity and cognitive abilities screening instruments (CASI) was conducted in 100 CHC patients and 100 healthy controls. All enrolled patients were evaluated by Fibroscan and the current study employed a cut-off of ≤12.5 kPa for excluding cirrhosis.

Results

Compared to controls, CHC patients had significantly lower scores on CASI and its components. Patients had significantly lower-middle carotid artery (MCA) intimal media thickening (IMT), peak systolic velocity (PSV), end-diastolic velocity (EDV), and mean flow velocity (MEV) than controls. Additionally, the total CASI score significantly correlated with PSV and EDV of MCA and negatively correlated with IMT, pulsatility index (PI), and resistance index (RI).

Conclusion

CHC patients have impaired cognitive function that may be associated with cerebrovascular affection in absence of cirrhosis. Future multi-center studies with the evaluation of the effect of antiviral on cerebrovascular reactivity and cognitive function in such patients are warranted.

Research Authors
Elham Ahmed Hassan, Noha A Masoud, Abeer S Abdel Rehim, Ghaydaa A Shehata, Saad Z Mahmoud, Gehan S Seifeldein, Khaled O Aboshaera, Ahmed M Abu-Elfatth
Research Date
Research File
Research Member
Research Publisher
The Egyptian Journal of Hospital Medicine
Research Website
https://journals.ekb.eg/article_240911_c5aece6c5f4ad27d638abc6e905e796c.pdf
Research Year
2022

Impact of COVID19 Infection on Patients with Chronic Liver Disease

Research Abstract

Elevation of liver chemistries in COVID19  infection has been documented worldwide.  Our aim was to assess the impact of COVID19 on patients with chronic  liver  disease (CLD).

Research Authors
Huda M Sileem, Mohammed E Abdel Rhman, Khaled A Khalaf
Research Date
Research File
Research Member
Research Website
https://journals.ekb.eg/article_358620_0.html
Research Year
2024

Hepatoprotective effects of vildagliptin mitigates lung biochemical and histopathological changes in experimental hepatopulmonary syndrome model in rat

Research Abstract

Hepatopulmonary syndrome (HPS) is a liver disease-induced pulmonary complication manifested with arterial hypoxemia. Hepatic cholestasis, encountered in several clinical situations, leads to biliary cirrhosis and HPS, both of which are best reproduced by rat common bile duct ligation (CBDL). Experience from liver transplantation suggests hepatoprotective-based therapy would be most effective in HPS treatment Dipeptidyl peptidase-4 (DPP-4) enzyme is involved in different pathogenic mechanisms of liver diseases. Vildagliptin (Vild) is a DPP-4 inhibitor which possesses favorable anti-inflammatory, anti-oxidant and anti-fibrotic effects. The present work explored hepatoprotective mechanisms of Vild and their participation in its prophylactic effectiveness in HPS induced by CBDL in rats. Male Wistar rats weighing 220–280 g were allocated into 4 groups: normal control, sham, CBDL and CBDL + Vild groups. i.p …

Research Authors
Safwat A Mangoura, Marwa A Ahmed, Nashwa Hamad, Andrew Z Zaka, Khaled A Khalaf
Research Date
Research Journal
International Immunopharmacology
Research Website
https://www.sciencedirect.com/science/article/pii/S1567576924017764
Research Year
2024

Vildagliptin ameliorates intrapulmonary vasodilatation and angiogenesis in chronic common bile duct ligationinduced hepatopulmonary syndrome in rat

Research Abstract

Experimental hepatopulmonary syndrome (HPS) is best reproduced in the rat common bile duct ligation (CBDL) model. Vildagliptin (Vild) is an anti-hyperglycemic drug that exerts beneficial anti-inflammatory, anti-oxidant and anti-fibrotic effects. Therefore, the present search aimed to explore the possible effectiveness of Vild in CBDL-induced HPS model.

Research Authors
Safwat A Mangoura, Marwa A Ahmed, Nashwa Hamad, Andrew Z Zaka, Khaled A Khalaf, Mohamed Abdelhakim Mahdy
Research Date
Research Member
Research Website
https://www.sciencedirect.com/science/article/pii/S2210740124001293/pdfft?crasolve=1&r=8e3f3a302efa0da3&ts=1731841333987&rtype=https&vrr=UKN&redir=UKN&redir_fr=UKN&redir_arc=UKN&vhash=UKN&host=d3d3LnNjaWVuY2VkaXJlY3QuY29t&tsoh=d3d3LnNjaWVuY2VkaXJlY3QuY29t
Research Year
2024

The First Report of Coxiella burnetii as a Potential Neglected Pathogen of Acute Hepatitis of Unknown Causes in Egypt

Research Abstract

The World Health Organization (WHO) recently alerted the emergence of new pathogens causing acute hepatitis in children across several countries. This new situation directs us to the screening of neglected pathogens that cause acute hepatitis. Q-fever is a zoonotic disease, caused by Coxiella burnetii. Although a high seroprevalence of Coxiella burnetii was recorded in animals present in Egypt, Q-fever is still a neglected disease, and the diagnosis of Q-fever is not routinely performed in Egyptian hospitals. In this study, we performed a retrospective assessment for Coxiella burnetii in cases of hepatitis of unknown causes (HUC) enrolled in Assiut University hospitals, in Egypt. Out of 64 samples of HUC, 54 samples were negative for all hepatitis markers, labeled as acute hepatitis of unknown etiology (AHUE), and 10 samples tested positive for adenovirus and Hepatitis E virus (HEV). Q-fever was detected in 3 out of 54 (5.6%) of AHUE, and one sample was confirmed as coinfection of HEV/Q-fever. Jaundice was the most common clinical symptom developed in the patients. In conclusion, Coxiella burnetii was found to be a potential cause of acute hepatitis in HUC. The diagnosis of Q-fever should be considered in acute hepatitis cases in Egyptian hospitals.

Research Authors
Mohamed A El-Mokhtar, Ibrahim M Sayed, Ayat M Kamel, Ahmed Atef Mesalam, Elsayed A Elgohary, Khaled Abo Bakr Khalaf, Sara Adel, Azza Abo Elfadl, Walaa A Khalifa, Haidi Karam-Allah Ramadan
Research Date
Research File
out_12.pdf (669.8 KB)
Research Member
Research Website
https://www.proquest.com/docview/2748361075?pq-origsite=gscholar&fromopenview=true&sourcetype=Scholarly%20Journals
Research Year
2022
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