Epidemiological Society of Nigeria

14/12/2025

14/12/2025

Imagine your brain’s support crew—cells that don’t fire signals but help regulate and protect neurons. One of those is the astrocyte. New research suggests that when someone endures stress early in life, these astrocytes in a region called the lateral hypothalamus go haywire, and that may raise the risk of depression later on.

Here’s how it seems to work. Under normal conditions, astrocytes help maintain a balance in brain circuits. But when stress hormones flood the brain during childhood, they interfere with receptors on astrocytes. That leads these cells to shrink, lose branches, and become less complex. Because astrocytes interact with neurons, those structural changes disrupt how neurons talk to each other. Behaviorally, that shows up as depressive-like traits: more lethargy, less interest in usual rewards, disturbances in sleep and wake cycles.

The striking part is that the researchers found that blocking the stress hormone receptors in astrocytes rescued much of the problem. Even after damage had started, turning off those receptors helped those astrocytes recover some of their shape and also alleviated depressive behavior. That hints the damage isn’t totally irreversible. So rather than just treating neurons, future therapies might aim to heal the astrocyte network, especially in people who experienced early adversity.

Research Paper 📄
DOI: 10.1038/s41467-025-61643-y

14/12/2025

14/12/2025

14/12/2025

Scientists have discovered that wax moth larvae, known as wax worms, can break down polyethylene plastic—a material that takes decades to decompose. These larvae, which naturally feed on beeswax, have been found to also consume polyethylene, breaking it down with the help of bacteria in their guts. In laboratory tests, about 2,000 wax worms were able to degrade an entire polyethylene bag in just 24 hours.

Researchers have identified that the larvae's ability to digest plastic is linked to specific bacteria in their intestines. When these bacteria were suppressed using antibiotics, the larvae's ability to break down polyethylene significantly decreased. This suggests that the gut microbiome plays a crucial role in the degradation process.

Further studies revealed that the larvae convert the broken-down plastic into lipids, storing it as body fat. However, a diet consisting solely of polyethylene led to rapid weight loss and death in the larvae, indicating the need for additional nutrients to sustain their health.

To harness this natural process, scientists propose two strategies: one involves mass-producing wax worms fed on polyethylene, potentially using them in waste management; the other focuses on isolating the responsible bacteria and enzymes to create a scalable method for plastic degradation without relying on the insects themselves.

Research Paper 📄
DOI: 10.1038/ndigest.2017.170827

14/12/2025

24/09/2025

*Tylenol (Acetaminophen) Use in Pregnant Women*
Tylenol, also known as acetaminophen or paracetamol, is a common medication used for pain relief and fever reduction.

*Use During Pregnancy*
- *Generally Considered Safe*: Acetaminophen is often viewed as a relatively safe option for pain and fever management during pregnancy when used as directed.
- *Common Uses*: For headaches, muscle aches, fever, discomforts associated with pregnancy.
- *Guidelines*: Pregnant women should consult healthcare providers for medication advice.

*Considerations*
1. *Dosage*: Follow recommended doses; avoid exceeding maximum daily limits.
2. *Alternatives and Risks*: Other pain relievers like NSAIDs (ibuprofen) have different pregnancy guidelines; consult a provider.
3. *Fetal Safety Research*: Studies on acetaminophen's safety in pregnancy are ongoing; some research suggests possible associations with certain outcomes, but overall it's considered one of safer options for pain/fever.
4. *Healthcare Provider Advice*: Best to discuss with OB-GYN or healthcare provider for personalized guidance.

*Potential Concerns and Research*
- *Some Studies*: Have looked at associations between acetaminophen use in pregnancy and outcomes like ADHD, asthma in offspring; findings aren't conclusive.
- *Precaution*: Use as directed and under guidance.

*Pregnancy-Related Pain* Management
- *Common Issues*: Headaches, back pain, other discomforts may prompt use.
- *Non-Pharmacologic Options*: Techniques like relaxation, physical therapy for pain management.

*Key Points*
- *Consult Provider*: For medication use in pregnancy.
- *Safe Use*: Generally seen as safe when used appropriately.

17/09/2025

*Heart Attack Risk: Understanding the Threat and Taking Control*
A heart attack, medically known as myocardial infarction, occurs when the blood flow to the heart is severely blocked, causing damage to the heart muscle. It's a leading cause of death globally, including in Nigeria. Understanding the risks and taking preventive measures can significantly reduce the likelihood of experiencing a heart attack.

*What Increases the Risk of a Heart Attack?*
Several factors contribute to the risk of having a heart attack. These include:

- *High Blood Pressure*: Damages blood vessels and strains the heart.
- *High Cholesterol*: Plaque buildup in arteries can block blood flow.
- *Smoking*: Damages blood vessels, increases blood pressure, and reduces oxygen supply.
- *Diabetes*: Increases risk of heart disease.
- *Obesity*: Linked to high blood pressure, diabetes, and high cholesterol.
- *Physical Inactivity*: Contributes to obesity and other risk factors.
- *Unhealthy Diet*: Diets high in saturated fats, salt, and sugar increase risk.
- *Stress*: Chronic stress may contribute to heart disease.
- *Family History*: Genetic predisposition plays a role.
- *Age*: Risk increases with age, especially after 45 for men and 55 for women.

*Symptoms of a Heart Attack*
Recognizing symptoms is crucial for timely intervention:
- *Chest Pain or Discomfort*: Often feels like pressure or squeezing.
- *Shortness of Breath*: Can occur with or without chest pain.
- *Pain in Arm, Back, Neck, Jaw*: Radiating pain.
- *Cold Sweat, Nausea, Lightheadedness*: Other possible symptoms.

*Prevention Strategies*
Reducing risk involves lifestyle changes and managing health conditions:
1. *Eat a Healthy Diet*: Focus on fruits, vegetables, whole grains, lean proteins.
2. *Exercise Regularly*: Aim for at least 150 minutes of moderate activity weekly.
3. *Quit Smoking*: Smoking cessation reduces risk significantly.
4. *Manage Stress*: Techniques like meditation, yoga can help.
5. *Monitor and Control Health M

15/09/2025

*Sudden Death: Understanding the Phenomenon*

Sudden death, also known as sudden cardiac death (SCD), is a sudden and unexpected loss of life that occurs within a short time period, usually within an hour of the onset of symptoms, in a person with known or unknown cardiac disease or condition. It is a devastating event that can have a profound impact on families, communities, and society as a whole.

*Definition*

Sudden death is often defined as a death that occurs unexpectedly and suddenly, often due to a cardiac arrhythmia or other cardiovascular condition. It can occur in anyone, regardless of age, s*x, or background, and can be caused by a variety of factors.

*Causes*

There are several causes of sudden death, including:

1. *Cardiac arrhythmias*: Abnormal heart rhythms that can lead to cardiac arrest.
2. *Coronary artery disease*: Blockage of the coronary arteries, which supply blood to the heart.
3. *Cardiomyopathy*: Diseases of the heart muscle that can lead to cardiac failure.
4. *Heart valve problems*: Abnormalities of the heart valves that can lead to cardiac failure.
5. *Genetic disorders*: Certain genetic conditions, such as long QT syndrome, that can increase the risk of sudden death.
6. *Trauma*: Severe physical trauma, such as a car accident or fall, that can cause cardiac arrest.
7. *Electrolyte imbalance*: Abnormal levels of electrolytes, such as potassium or magnesium, that can disrupt heart function.

*Statistics*

Sudden death is a significant public health problem worldwide. According to the World Health Organization (WHO), cardiovascular disease is the leading cause of death globally, accounting for over 17.9 million deaths per year. In the United States alone, sudden cardiac death claims over 300,000 lives annually.

*Most Affected Age Bracket*

Sudden death can occur at any age, but it is more common in older adults. According to the American Heart Association, the risk of sudden cardiac death increases with age, with the majority of cases

25/08/2025

*Prostate cancer* is a common type of cancer that affects men, particularly those over 65 years old. It's estimated that one in six White men and one in five Black men will be diagnosed with prostate cancer in their lifetime.

*Causes and Risk Factors*

- Age: Prostate cancer risk increases with age, with most cases diagnosed in men over 65
- Family history: Having a family history of prostate cancer can increase your risk
- Genetics: Certain genetic mutations, such as BRCA1 and BRCA2, can increase prostate cancer risk
- Ethnicity: Black men are more likely to develop prostate cancer than White men

*Symptoms*

- Often, prostate cancer doesn't exhibit symptoms in its early stages
- As the cancer progresses, symptoms may include:
- Difficulty urinating
- Frequent urination
- Blood in urine or semen
- Painful urination or ej*******on

*Diagnosis*

- *Prostate-Specific Antigen (PSA) test*: Measures the level of PSA in the blood, which can be elevated in men with prostate cancer
- *Digital Re**al Exam (DRE)*: A physical exam that checks for abnormalities in the prostate gland
- *Biopsy*: A procedure that removes tissue samples from the prostate gland for further examination

*Treatment Options*

- *Watchful waiting*: Monitoring the cancer without immediate treatment
- *Active surveillance*: Regular check-ups and tests to monitor the cancer's progression
- *Surgery*: Removing the prostate gland (prostatectomy)
- *Radiation therapy*: Using high-energy rays to kill cancer cells
- *Hormone therapy*: Reducing testosterone levels to slow cancer growth¹ ²

*Resources*

- National Cancer Institute: Provides information on prostate cancer treatment and research
- American Cancer Society: Offers resources and support for prostate cancer patients and their families
- Urology Care Foundation: Provides information on prostate cancer diagnosis, treatment, and care

27/07/2025

14/04/2025

REGIONAL COOPERATION IN COMBATTING LASSAR FEVER
Regional cooperation plays a vital role in combating Lassa fever in West Africa.
This viral hemorrhagic disease affects several countries, including Nigeria, Liberia, Sierra Leone, and Guinea, and is transmitted through contact with infected rodents or person-to-person contact.

Challenges in Combating Lassa Fever
- *Cross-border transmission*: Lassa fever can spread across borders, making regional cooperation essential for effective disease control.
- *Limited resources*:
West African countries often face limited resources, including inadequate healthcare infrastructure, diagnostic capabilities, and treatment options.
- *Inadequate surveillance*: Weak surveillance systems hinder the detection and response to outbreaks.

Regional Cooperation Initiatives
- *West African Health Organization (WAHO)*: Coordinates regional efforts to control Lassa fever, including surveillance, outbreak response, and capacity building.
- *ECOWAS Regional Disease Surveillance and Response*: Enhances regional cooperation on disease surveillance, outbreak response, and capacity building.
- *Lassa Fever Research Network*: Brings together researchers, healthcare professionals, and policymakers to share knowledge, expertise, and resources.

Benefits of Regional Cooperation
- *Improved surveillance*: Enables earlier detection and response to outbreaks.
- *Enhanced capacity building*: Improves the skills and knowledge of healthcare professionals.
- *Increased access to resources*: Facilitates access to diagnostic tools, treatments, and vaccines.
- *Better coordination*: Enables better coordination of response efforts, reducing duplication and improving effectiveness.

Success Stories
- *Nigeria's Lassa Fever Response*: Demonstrates the effectiveness of regional cooperation, with support from WAHO, ECOWAS, and international partners.
- *Regional Training Programs*: Improves the skills and knowledge of healthcare professionals, enhancing their abi