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Topic Review
Risk-Reducing Bilateral Salpingo-Oophorectomy
Risk-reducing bilateral salpingo-oophorectomy (RRBSO) is the gold standard preventative option for BRCA mutation carriers at high risk for ovarian and breast cancer. RRBSO involves the surgical removal of both ovaries, as well as fallopian tubes, as fallopian tubes are increasingly being recognized as the site of origin for the most common and lethal form of ovarian cancer, high-grade serous ovarian cancer. Guidelines from the National Comprehensive Cancer Network (NCCN) reccomend people with BRCA1 mutations to indergo RRBSO between the ages of 35 to 40 and upon completion of childbearing. Since the onset of ovarian cancer among BRCA2 mutations carriers is approximately 8 to 10 years later than in BRCA1 mutations carriers, the recommended timing of RRBSO is delayed to ages 40 to 45. Despite the effectiveness of undergoing RRBSO at the recommended age, it also induces immediate surgical menopause with an abrupt and significant decline in levels of sex hormones. As a result, surgical menopause is associated with various adverse physical, mental, and cognitive health outcomes. 
  • 336
  • 09 Feb 2023
Topic Review
Risk Perception of Air Pollution
The adverse health effects of exposure to air pollutants, notably to particulate matter (PM), are well-known, as well as the association with measured or estimated concentration levels. The role of perception can be relevant in exploring effects and pollution control actions.
  • 423
  • 27 Sep 2022
Topic Review
Risk of Hepatitis B Virus in  Africa Region
Chronic hepatitis B caused by persistent infection with the hepatitis B virus (HBV) is a major public health threat in endemic regions like the World Health Organization (WHO) Africa region. Chronic infection with HBV poses a 15–25% lifetime risk of acquiring liver cirrhosis or hepatocellular carcinoma. This is inversely proportionate to the age of acquisition and in the absence of interventions, ~90% of babies born to mothers testing positive for the hepatitis B surface (HBsAg) or e (HBeAg) antigens will develop chronic infection, raising significant global public health concern. 
  • 236
  • 01 Nov 2023
Topic Review
Risk of Arsenic in Portuguese Rice
Arsenic is a metalloid with natural and anthropogenic sources and its inorganic form is toxic to humans. Rice is highly consumed worldwide and is prone to arsenic contamination.
  • 407
  • 25 Jan 2022
Topic Review
Risk Factors of Sleep Apnea
Obstructive sleep apnea (OSA), a condition in which there is a recurrent collapse of the upper airway while sleeping, is a widespread disease affecting 5% to 10% people worldwide. Despite several advances in the treatment modalities for OSA, morbidity and mortality remain a concern. Common symptoms include loud snoring, gasping for air during sleep, morning headache, insomnia, hypersomnia, attention deficits, and irritability. Obese individuals, male gender, older age (65+), family history, smoking, and alcohol consumption are well recognized risk factors of OSA.
  • 398
  • 09 Feb 2023
Topic Review
Risk Factors for Testicular Cancer
A large piece of knowledge suggests that most testicular cancers originate from a potential noxa during fetal life. Nevertheless, the environment, familial history, ethnicity as well as diet and occupational exposures are other important actors involved in testis carcinogenesis. 
  • 381
  • 19 Jun 2023
Topic Review
Rise of Antimicrobial Resistance
The term “antibiotics” refers to the substances naturally produced by microorganisms such as actinomycetes, bacteria or fungi, which can inhibit the growth of other microorganisms and destroy their cells. Antibiotics were once considered the magic bullet for all human infections. The term “antimicrobial resistance” (AMR) is used to describe the ability of bacteria and other microorganisms to resist the adverse effects of an antimicrobial to which they were formerly susceptible.
  • 927
  • 03 Jan 2023
Topic Review
Revolutionizing HIV-1 Viral Load Monitoring in India
India continues to grapple with a significant burden of HIV infections. Despite notable progress in prevention and treatment efforts, multiple challenges, such as high-risk populations, inadequate testing facilities, and limited access to healthcare in remote areas, persist. Though the Government of India offers HIV-1 plasma viral load testing at various medical centers, aiding treatment decisions and monitoring antiretroviral therapy effectiveness, enhancing care for individuals living with HIV under the National AIDS Control Program (NACP), the nation’s large population and diverse demographics further complicate its outreach and response. Hence, strategic interventions and alternative methods of testing remain crucial to curbing HIV transmission and improving the quality of life for those affected. Dried blood spot (DBS) sampling has emerged as a convenient and cost-effective alternative for HIV-1 viral load testing, revolutionizing the landscape of diagnostic and monitoring strategies for HIV infection. Though the plasma-based viral load remains the gold standard for monitoring HIV-1, DBS-based HIV-1 viral load testing holds immense promise for improving access to care, particularly in resource-limited settings where traditional plasma-based methods may be logistically challenging. DBS entails the collection of a small volume of blood onto filter paper, followed by drying and storage. This approach offers numerous advantages, including simplified sample collection, transportation, and storage, reducing the need for cold-chain logistics. 
  • 109
  • 18 Feb 2024
Topic Review
Revolutionizing Epidemic to Pandemic
Coronavirus belongs to the vast group of viruses, under the family Coronaviridae with the subfamily of Ortocoronavirinae found in the order Nidovirales and realm Riboviria.
  • 355
  • 15 Apr 2022
Topic Review
Retinoic Acid and Retinaldehyde Dehydrogenase
Retinoic acid (RA) is an important biological metabolite synthesized from the retinol content (known as “vitamin A”) via a sequential cellular process in the retinoid signaling pathway (RSP). RSP-mediated RA biosynthesis is a vital physiological process in chordates, since RA interacts with the nuclear receptor superfamily, namely nuclear RA receptors (RARs) and retinoid X receptors (RXRs), bound to the RA response elements (RAREs) in the promoter region of RA target genes. Retinaldehyde dehydrogenases (RALDH) belongs to the oxidoreductase family and plays a critical role in RA synthesis from the retinaldehyde content; therefore, this enzyme is considered to be one of the key regulators of RA-related retinol metabolism and embryonic development.
  • 576
  • 27 Oct 2021
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