معامل الجودة العالمية

09/02/2025

05/10/2024

مع Hashem Al-Ghaili – تم تقديري الآن لكوني أحد أبرز المعجبين لديه! 🎉

07/09/2024

A virus in plants can kill cancer

Scientists discovered a potential plant virus that can fight metastatic cancers. The treatment consists of nanoparticles derived from the cowpea mosaic virus, a virus that typically infects black-eyed pea plants.

This treatment showed incredible promise in mice, not only preventing the spread of cancer to other parts of the body but also boosting survival rates across various types of cancer, including colon, ovarian, melanoma, and breast cancer. What's particularly exciting is that this treatment works by revving up the body's own immune system to fight off cancer cells. It's like giving the immune system a wake-up call, making it more efficient at recognizing and destroying cancer before it has a chance to spread. This means that even after surgery to remove a tumor, this treatment could help prevent any lingering cancer cells from causing a relapse. The scientists are optimistic about this discovery and plan to test it in pet animals with cancer, with the ultimate goal of bringing it to human clinical trials. This could potentially revolutionize how we treat cancer in the future, offering new hope to patients and their families. Nanoparticles hold immense potential in revolutionizing cancer therapy. Their miniature size allows them to navigate the body's intricate pathways, delivering drugs directly to tumors while minimizing harm to healthy tissues. This targeted approach not only enhances the effectiveness of treatment but also reduces the debilitating side effects often associated with traditional chemotherapy.

26/08/2024

What happens in your body during a fever?

The human body maintains an average temperature of around 98.6 F (or 37 C). The hypothalamus, a part of the brain acting as a thermostat, constantly monitors and regulates body temperature.

During an infection, immune cells release fever-inducing chemicals, which travel to the hypothalamus and signal it to raise the body's temperature. This increase is typically considered a fever when the body temperature exceeds 100.4 F (or 38 C). The hypothalamus utilizes various mechanisms to raise body temperature, including constricting blood vessels to reduce heat loss through the skin and inducing shivering to generate more heat. Fever is part of the body's first line of defense against infections. Higher body temperatures create a less favorable environment for bacteria or viruses to replicate and infect cells. The immune system becomes more effective at fighting off infections by producing heat shock proteins (HSPs) during fever. T

hese heat shock proteins activate immune pathways that help in defending the body against foreign invaders. Some people experience chills during a fever despite rising body temperature. This happens because the brain has temporarily reset the internal temperature gauge to a higher level. A person with a fever may feel cold as the body tries to reach this new temperature. While fever is often uncomfortable, it is a natural and effective tool in the body's arsenal for fighting infections, and it usually indicates that the immune system is actively working to restore health.

27/03/2024

23/03/2024

18/03/2024

بعض الهرمونات البتأثر علي نسبة الجلوكوز في الدم بالارتفاع أو الانخفاض

هرمون الأنسولين يتم افرازة من البنكرياس من beta cells of islets of langerhens

وظيفتة يعمل علي تحفيز ادخال الجلوكوز للخلايا وبالتالي تقليل كميتة في الدم .


أيضا يتم افرازة من البنكرياس من alpha cells ، يعمل علي زيادة الجلوكوز في الدم ( عكس الأنسولين ) عن طريق تحفيز عملية ال (glycogenolysis) يعني تكسير الجلايكوجين وبالتالي تكوين الجلوكوز .

هرمون الكورتيزول يتم افرازة من adrenal cortex يعمل علي زيادة الجلوكوز في الدم عن طريق تحفيز عملية ( gluconeogenesis) يعني إنتاج الجلوكوز من مصادر غير الكربوهيدرات .

08/03/2024