Related Concept Videos
01:10Retrovirus Life Cycles
Retroviruses have a single-stranded RNA genome that undergoes a special form of replication. Once the retrovirus has entered the host cell, an enzyme called reverse transcriptase synthesizes double-stranded DNA from the retroviral RNA genome. This DNA copy of the genome is then integrated into the host’s genome inside the nucleus via an enzyme called integrase. Consequently, the retroviral genome is transcribed into RNA whenever the host’s genome is transcribed, allowing the retrovirus to...
01:26Sexually Transmitted Infections
Sexually transmitted infections (STIs) are diseases transmitted primarily through unsafe sexual interactions. Bacteria, viruses, or parasites cause them and can result in severe health complications if untreated.ChlamydiaThe bacterium Chlamydia trachomatis is responsible for the disease Chlamydia, the most common STI in the United States. This peculiar pathogen requires human cells to reproduce, residing intracellularly. The initial infection often goes unnoticed because it typically does not...
01:27Cryptococcal Meningitis
Cryptococcal meningitis is a life-threatening opportunistic infection predominantly associated with HIV/AIDS, accounting for over 100,000 deaths annually worldwide. However, it also affects individuals with other forms of immunosuppression, including those undergoing immunosuppressive therapy, organ transplant recipients, patients with innate immunodeficiencies, and individuals with hematological disorders. The infection is caused mainly by Cryptococcus neoformans and Cryptococcus gattii,...
01:19Inhibitors of Virion Maturation and Assembly
As part of their replication cycle, certain viruses synthesize long precursor proteins called polyproteins within infected host cells. In human immunodeficiency virus (HIV), two major polyproteins are produced: Gag and Gag-Pol. The Gag polyprotein supplies the structural components of the virus, while Gag-Pol includes essential viral enzymes such as reverse transcriptase, integrase, and protease. After synthesis, these polyproteins move to the host cell membrane, where they assemble into an...
01:28Drug Therapy
The advent of drug therapy has profoundly shaped modern mental health care, providing targeted treatments for a range of psychological disorders. Psychotherapeutic drugs, classified into antianxiety, antidepressant, and antipsychotic medications, address symptoms across anxiety disorders, mood disorders, and schizophrenia. While these medications have transformed patient outcomes, they require careful management due to their potential side effects and limitations.
Antianxiety Medications
Antianxiety Medications
01:30Inhibitors of Viral Protein Synthesis
Protein synthesis is indispensable for viral replication, as viruses lack the cellular machinery required for this process and must hijack the host's translational apparatus. In response, host cells deploy a critical innate immune defense involving interferons, specialized cytokines that play a central role in inhibiting viral propagation.Upon viral detection, infected cells release interferons that bind to receptors on adjacent uninfected cells, activating the JAK-STAT signaling pathway and...
You might also read
Related Articles
Articles linked to this work by shared authors, journal, and citation graph.
Sort by
Same author
A Prospective Incidence Study on Sexually Transmitted Infections and HIV in Men Who Have Sex With Men, With or Without Use of Pre-exposure Prophylaxis.
Open forum infectious diseases·2026
Related Experiment Video
Updated: Jun 16, 2026
05:46
Rapid Screening of HIV Reverse Transcriptase and Integrase Inhibitors
Published on: April 9, 2014
Current therapy of HIV.
Anja Verena Potthoff1, Norbert H Brockmeyer
1St. Josef Hospital, Ruhr University Clinic, Department of Dermatology and Allergology, Bochum, Germany. a.potthoff@klinikum-bochum.de
Summary
Antiretroviral therapy has significantly improved HIV treatment outcomes, extending patient life expectancy. Current guidelines recommend initiating therapy based on CD4+ cell counts to minimize side effects and resistance.
Area of Science:
- Infectious Diseases
- Pharmacology
- Immunology
Background:
- Antiretroviral therapy (ART) has evolved significantly, with new drugs approved annually.
- Nucleoside analogs remain central to ART, inhibiting reverse transcriptase and viral DNA transcription.
- ART is often combined with non-nucleoside reverse transcriptase inhibitors or protease inhibitors.
Purpose of the Study:
- To review the advancements in antiretroviral therapy.
- To discuss the efficacy and optimal timing for initiating ART.
- To highlight the importance of managing drug interactions and comorbidities in aging HIV patients.
Main Methods:
- Review of prospective, multicenter studies on ART efficacy.
- Analysis of historical treatment strategies and current guideline recommendations.
- Consideration of drug interactions and management of concomitant diseases.
Main Results:
- ART has demonstrated a life-prolonging effect, with HIV patients achieving life expectancies similar to those with chronic conditions like diabetes.
- Current guidelines advocate for initiating ART when CD4+ lymphocyte counts approach 350/microl.
- Increased age in HIV patients leads to more comorbidities and polypharmacy, necessitating careful drug interaction management.
Conclusions:
- Optimal antiretroviral therapy significantly improves life expectancy for HIV patients.
- Initiating ART at the recommended CD4+ count threshold is crucial for balancing efficacy and minimizing long-term side effects and resistance.
- Management of complex drug interactions and comorbidities is essential in the care of aging HIV patients, requiring specialized centers for initiation and monitoring.