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Acute Ischemic Stroke (AIS) What is Acute Ischemic Stroke (AIS)? Acute ischemic stroke (AIS), commonly known as a stroke, occurs when the blood supply to part of the brain is suddenly disrupted or reduced, preventing brain tissue from receiving oxygen and nutrients. The brain cells then begin to die. A stroke is a medical emergency that requires prompt treatment. Symptoms of Acute Ischemic Stroke The symptoms of AIS can be remembered with the acronym FAST: Face: The face may become numb or droopy on one side. Arms: One arm may become weak or numb. Speech: Speech may become slurred or garbled. Time: It's time to call emergency services immediately if any of these signs occur. Some other common symptoms of Acute Ischemic Stroke (AIS) include sudden numbness, confusion, trouble seeing in one or both eyes, trouble walking, dizziness, or a severe headache. Often, symptoms happen on only one side of the body. Causes and Risk Factors of Acute Ischemic Stroke There are two main typ...

  Microneedle Flu Vaccine Traditional flu vaccines have been administered via intramuscular injection for decades. This method involves using a hypodermic syringe and needle to inject an influenza vaccine deep into the muscle tissue, typically in the arm. While effective at eliciting an immune response, intramuscular injections have some drawbacks. For some people, needles induce fear, anxiety and pain. This needle phobia can lead to vaccination hesitancy and lower immunization rates. The injection process also requires trained healthcare workers and sterile medical equipment, making mass vaccination campaigns logistically challenging. Lastly, proper needle disposal presents environmental concerns over sharps waste. Introduction to Microneedle Vaccine Technology Scientists have been working on alternative delivery methods to address the limitations of intramuscular injections. One promising approach is microneedle technology. Microneedles are microscopic needles, typically less t...

   Methotrexate Drug  Methotrexate is a chemotherapy drug that is commonly used to treat cancer as well as some non-cancer diseases and medical conditions. As an anti-folate or antimetabolite drug, methotrexate works by interfering with the production of nucleic acids and proteins that are essential for cell division and growth. This slows down the growth and reproduction of both cancer cells and non-cancerous rapidly-dividing inflammatory cells, leading to an alleviation of disease symptoms. Methotrexate Drug Workings Methotrexate works by inhibiting the enzyme dihydrofolate reductase (DHFR) which is involved in folate metabolism. Specifically, it competes with and blocks the reduction of folic acid to tetrahydrofolic acid, which is involved in the biosynthesis of thymidylate and purine precursors that are essential for DNA synthesis. By restricting the availability of these precursors, methotrexate stops cells from multiplying and reproducing, which makes it an effec...

HER-2 Negative Breast Cancer Breast cancer is one of the most common cancers affecting women. There are different types of breast cancer based on characteristics of the cancer cells. HER2− breast cancer accounts for around 65-70% of all breast cancer cases. In this type of breast cancer, the cancer cells do not overexpress the HER-2 protein which helps in dividing and growing cancer cells rapidly. Knowing the HER-2 status helps determine the best treatment plan and predict prognosis. This article discusses the key aspects of HER2− breast cancer. Types of Breast Cancer Breast cancers are broadly classified into three main types based on the presence of receptors on the cancer cells - hormone receptor-positive, HER2-positive, and triple-negative. HER2− breast cancer can be either hormone receptor-positive or triple-negative. Hormone receptor-positive HER2− breast cancer Around 50-60% of breast cancers are hormone receptor-positive and do not overexpress the HER-2 protein. This means the...

Primary Sclerosing Cholangitis Primary sclerosing cholangitis (PSC) is a rare chronic disease that causes inflammation and scarring in the bile ducts of the liver. The bile ducts are tubes that carry bile from the liver to the small intestine. Bile is necessary for digesting fats. When the bile ducts are damaged, bile builds up in the liver, causing scarring over time. This scarring is called fibrosis and can eventually lead to cirrhosis or liver failure if left untreated. Causes and Risk Factors of PSC The exact cause of PSC is unknown, but it is considered an autoimmune disease. In an autoimmune disease, the immune system mistakenly attacks healthy cells in the body. Researchers believe genetic and environmental factors may contribute to the development of PSC. Some potential risk factors include: - Family history: PSC sometimes runs in families, indicating a genetic component. Having a close relative with PSC increases one's own risk. - Inflammatory bowel disease: About ...

Stingray Devices What is it? A Stingray device, also known as an IMSI catcher, is a surveillance device used by law enforcement to track the location and identity of cell phones and intercept their communications. The Stingray mimics cell towers and forces nearby phones to connect to it rather than a legitimate cell tower. This allows the operator of the Stingray to obtain subscriber identity information and location details of devices connecting to it. How do it Work? Stingray Devices  work by exploiting flaws in cellular communication protocols. When a phone turns on, it scans the area to find the strongest cell tower signal and connects to it. This allows the phone to make and receive calls and use data services. Stingrays take advantage of this process by broadcasting a stronger simulated cell tower signal than legitimate towers in the area. Phones grab on and connect to the Stingray instead, revealing their identities and locations. The Stingray then acts as a go-between, ...

OTC Consumer Health The Growing Popularity and reliance of OTC Medications Over-the-counter (OTC) medications have become increasingly relied upon by consumers to treat minor health complaints and illnesses. These drugs are available for purchase without a prescription from a doctor, allowing people to easily access medications for common conditions from their local pharmacy or shop. As consumers have become more health-conscious and frustrated with long wait times at doctors' offices, OTC drugs have provided a convenient alternative to prescription medications. A report published by a leading market research firm found sales of OTC Consumer Health  medications have been steadily rising over the past decade. In 2020 alone, over $30 billion was spent on OTC drugs in the United States. Cough/cold remedies, pain relievers, digestive aids and allergy medications make up the majority of OTC sales. The report attributed the growth to an aging population and a desire for self-care and tr...

Antimicrobial Susceptibility Testing  Antimicrobial susceptibility testing, also known as antibiotic susceptibility testing, is a laboratory procedure that determines which antibiotics will effectively treat a bacterial infection. The test helps healthcare professionals choose the most appropriate antibiotic when a patient is diagnosed with a bacterial infection. It prevents prescribing antibiotics that the bacteria have become resistant to. How Antimicrobial Susceptibility Testing Works In Antimicrobial Susceptibility Testing , a sample of the bacteria causing an infection is taken from the patient. This can be a fluid sample like blood, urine or sputum, or a tissue sample. The isolated bacteria are then incubated with different antibiotics to see how susceptible or resistant they are. The antibiotics used in the test are determined based on the type of bacteria isolated and the most common antibiotics used to treat infections caused by that bacterium. Standardized concentratio...

Fecal Calprotectin Test What is Calprotectin? Calprotectin is a protein that is mainly found within the neutrophils (a type of white blood cell) in our bodies. During inflammation in the intestines, there is an increased migration of neutrophils to the inflamed intestinal tissue. As the neutrophils gather in the intestine, they release calprotectin into the intestinal lumen. Therefore, detecting elevated levels of calprotectin in the stool can be indicative of intestinal inflammation. How is the Test Done? The Fecal Calprotectin Test is a non-invasive diagnostic test used to detect elevated levels of calprotectin in stool samples. To perform the test, patients are provided with a collection kit that contains a stool collection container and instructions. Patients simply collect a small sample of stool and return it for laboratory analysis. No special preparation or diet is required before collecting the stool sample. Once received at the lab, the stool sample undergoes quantitative a...

Healthcare IT Consulting The Evolving Role of Healthcare IT Consultants Over the past decade, the healthcare industry has seen immense changes driven by regulations, demands for lower costs, and advancing technologies. Providers are under increasing pressure to deliver higher quality care at lower prices while navigating regulatory compliance. At the same time, patients expect streamlined, convenient experiences similar to other service industries. To address these challenges, hospitals and medical groups have turned to healthcare IT consulting firms to help transform legacy systems, optimize workflows, and implement new technologies. As the needs of the industry have changed, so too has the role of Healthcare It Consulting . Consultants are no longer focused solely on discrete projects like EHR implementations. Today's consultants serve as long-term partners, helping organizations reimagine how technology can advance their mission of patient care. Consultants work across clinica...