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Nanotechnology as a drug delivery in Cancer Treatment

Picture of nanotechnology cancer

Nanotechnology as a drug delivery in Cancer Treatment

What is Cancer ?

     Cancer is a leading cause of death and remains a difficult disease to treat. It was estimated that there would be 18.1 million new cancer cases and 9.6 million cancer-related deaths by 2018 (Global cancer statistics 2018). Besides, cancer is a disease characterized by uncontrolled cell proliferation that spreads to other parts of the organs to cause death. Moreover, cancers can be either benign (noncancerous) or malignant (cancerous). Benign means tend to grow slowly and do not spread to other organs meanwhile malignant can grow rapidly, invade and destroy nearby healthy tissues, and spread to whole parts of the body.  Therefore, current technology as nanotechnology are being used to treat cancer.

Picture of cancer

How Does Nanotechnology as a Drug Delivery?

A nanotechnology is a great tool in the fight against cancer. It is safer and more precise. This application has led to several promising results in the diagnosis and treatment of cancer. Not only that, it includes drug delivery, gene therapy, detection and diagnosis, drug carriage, biomarker mapping, targeted therapy, and molecular imaging.

The nanotechnology cancer treatments work to destroy cancer tumors with minimal damage to healthy tissue and organs, as well as the detection and elimination of cancer cells before they form tumors.

Picture of nanotechnology cancer

However, nanotechnology diagnoses and treats disease at a very tiny scale. Frankly, the particles are 100 to 10,000 times smaller than human cells. Because of their small size, they can locate and kill cancer more precisely than current cancer treatments, such as chemotherapy. However, many drugs are insoluble, so it difficult to administer. These compounds can be “solubilize” by combining them with organic or lipid nanoparticles, which keep them in circulation for longer periods, or by forming them into crystalline Nano suspensions stabilized by surfactants.

Nanotechnology treatments, for instance, the development of nanoscale drug delivery, can ensure precise cancerous tissue targeting with low side effects. Thus, it can easily cross the cell barrier due to its biological nature.

The tiny size of nanoparticles allows them to deliver medicines into which areas of the part of the human body that be hard to reach. For instance, the blood-brain barrier. The blood-brain barrier prevents foreign substances from entering into the brain and also prevents some medications from being absorbed. As a result of their small size, nanoparticles can pass through this barrier, making them a useful treatment for brain cancer.

Nanotechnology Tools Used in Cancer Diagnosis

Nanotechnology can validate cancer imaging at the tissue, cell, and molecular levels, according to current research. Its use in the development of nanomaterials, which include the following:

  1. Near Infrared (NIR) Quantum Dots
  2. Nanoshells
  3. Colloidal Gold Nanoparticles

Is Nanotechnology Now in Use?

Nanotechnology has been used for more than a decade by doctors to treat cancer. For instance,  abraxane and doxil, aid in the efficacy of chemotherapy drugs.

Abraxane is a nanoparticle made of the protein albumin and the chemotherapy drug docetaxel. It inhibits the division of cancer cells. Furthermore, this medication to treat breast cancer and pancreatic cancer that already spread to other parts of the body and non-small-cell lung cancer.

Doxil known as doxorubicin will wrap in a liposome, which is a fatty sac. It disrupts cancer genes, preventing cancer cells from dividing. This drug use to treat cancers of the ovary, multiple myeloma, and Kaposi’s sarcoma.

Does Nanotechnology for Cancer Have Side Effects?

Nanotechnology more precisely targets cancer cells while sparing healthy tissues. However, nanotechnology drugs may have fewer side effects than chemotherapy and radiation therapy. In the case of nanotechnology-based treatments, abraxane and doxil do cause side effects which are weight loss, nausea, and diarrhea.

References:

Nanotechnology, cancer, cancerous, cancer cells,  drug delivery, treatment, death, cell proliferation, organs, benign, malignant, healthy tissues, body, safer, precise, diagnosis, tumors, cancer cells, tiny scale, human cells, kill, inhibits, chemotherapy, insoluble, solubilized, lipid nanoparticle, crystalline nano suspensions, stabilized, surfactants, nanoscale, cell barrier, blood-brain barrier, biological nature, medicines, drugs, foreign substances, Nanoshells, (NIR) Quantum Dots, Colloidal Gold Nanoparticles, chemotherapy, genes, side effects.

                ABOUT THE AUTHOR  

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Raihan Ridzuan

Raihan Ridzuan, Bachelor of Science (Hons) Pharmacology, is Customer Relationship Executive  of Mayflax, one of the nation’s leading healthcare and marketing company

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Obesity and Overweight Can Affect Health Problems

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Obesity and Overweight Can Affect Health Problems

Obesity is a medical condition that occurs when a person carries excess weight that might affect their health!

What are obesity and overweight?

Obesity and overweight are defined as abnormal so, excessive fat accumulation that may impair health.

Furthermore, when people eat more calories than usual over and over again, so their bodies will store the extra calories. For instance, fat may build up in their bodies.

Eventually, fat can harm the health of a person. In addition, The term “overweight” or “obese” actually has a higher chance of developing weight-related health problems. It can lead to other diseases like high blood pressure, high cholesterol, type 2 diabetes, heart disease, and sleep apnea. However, weight can come from muscle, bone, fat, or body water.

Above all, these diseases give a bad impact to our body. For instance, people with severe obesity are more likely to have other diseases.

Facts about overweight and obesity

The global WHO estimates, in 2016, therefore, more than 1.9 billion adults above 18 years and older were  overweight in and more than 650 million adults are obese.

Eventually a large number of the world’s population lives in countries where overweight so, their death number of obesity is however more than underweight people.

Body Mass Index (BMI)

Body mass index (BMI) is a simple index of weight-for-height. Therefore, It is used to define whether an individual is considered underweight, healthy, overweight and obesity. In addition, often all doctors use BMI to check patient weight at all routine check-ups.

BMIWeight status
Below 18.5 Underweight
18.5–24.9Healthy
25.0–29.9Overweight
30.0 and aboveObese

Health problems of being overweight and obesity

Obesity is when your body weight is abnormal. Therefore, it can lead to other diseases like high blood pressure, high cholesterol, type 2 diabetes, heart disease, sleep apnea, and many more. In other words, these diseases may affect a poor quality of life, disability, or life threatening.

1. Hypertension

Obesity is the one that cause of high blood pressure. But, also known as hypertension. For instance, about three out of four patients with high blood pressure are obesity. Similarly, high blood pressure increases the risk of other conditions such as heart disease like congestive heart failure (CHF) in addition, so it can also cause stroke, and kidney disease.

2. Respiratory Disorders

Obesity and overweight are at higher risk for lung infections, asthma, and other respiratory disorders. In addition, people with obesity, around 50% to 60% therefore, have obstructive sleep apnea (OSA). Because, obstructive sleep apnea (OSA) is a very serious breathing disorder and it block air passageways during sleep. Above all, this blockage causes you to stop breathing for a while.

Mostly, it may attack during your sleep at the night. However, it reduced the amount of oxygen in blood. Because, obstructive sleep apnea can cause sudden cardiac death and stroke because apnea will disrupt the normal sleep cycle, and may cause restless sleep. In addition, fatigue and drowsiness occured.

3. Heart Disease

Heart attack is a higher risk with people that have severe obesity. For instance, it increases the risk of heart failure. However, obesity in addition can associated with arrhythmias that is irregular heartbeats.

4. Diabetes

Obesity is a major cause of Type 2 diabetes. Similarly, when blood sugar is too high in your body and difficult to control, because of high blood sugar. So, type 2 diabetes can risk to death.

There can lead to:

  • Amputations (loss of limbs)
  • Heart disease
  • Stroke
  • Blindness
  • Kidney disease
  • High blood pressure
  • Nerve damage and numbness
  • Hard-to-heal infections
  • Impotence

5. Gastroesophageal Reflux Disease (GERD)

Obesity has been associated with higher risk of GERD. In addition, Gastroesophageal Reflux Disease (GERD), and heartburn, because of stomach acid or intestinal secretions lead to oesophagus damage. In other words, heartburn, indigestion, vomiting, coughing especially at night, hoarseness, and belching is the common symptoms.

6. Bone and Joint Damage

Above all, bone and joint damage may affected if you are obesity. However, it can increase the risk of personal injury and accidents. In addition,  joint diseases (arthritis), disc herniation, spinal disorders,  back pain, pseudotumor cerebri, a condition that increase the pressure in the brain and associated with confusion similarly disorientation, headache, and visual problems might occur.

7.Cancer

As body mass index (BMI) increases, so the risk of cancer and death from cancer might be increased.

These cancers include:

  • Endometrial cancer

  • Cervical cancer

  • Ovarian cancer

  • Postmenopausal breast cancer

  • Colorectal cancer

  • Esophageal cancer

  • Pancreatic cancer

  • Gallbladder cancer

  • Liver cancer

  • Kidney cancer

  • Thyroid cancer

  • Prostate cancer
  • Non-Hodgkin’s lymphoma
  • Multiple myeloma
  • Leukemia

Above all, for people with severe obesity, the percentage of death increases for all types of cancer. So, the death rate is men is 52% and for women is 62% higher.

Other Conditions

Kidney Disease: High blood pressure, Type 2 diabetes and congestive heart failure are major causes of kidney disease and kidney failure. In addition, these conditions are even worse with people that have obesity.

Liver Disease: Obesity is the major cause for fatty liver. For instance, most people with severe obesity have fatty liver disease so, It can cause scarring at the liver, resulting in liver damage. In addition, can lead to cirrhosis.

Other conditions that could become life-threatening:  Therefore, pregnancy women that diagnosed with obesity will increases the chance of having a miscarriage, gallbladder disease, pancreatitis, and others.

What causes it?

The following picture shows causes of obesity.

Causes of obesity

How can overweight and obesity be reduced?

However, overweight and obesity as well as unrelated diseases associated with it, are largely preventable.

People can reduced by:

  • Limit the energy intake of total fats and sugars.
  • Increase diet fruit and vegetables, legumes, whole grains and nuts.
  • Do regular physical activity everyday, In other words, at least 1 hour a day for children and 2 hours a week for adults.
  • Limit screen time.
  • Get enough good quality sleep. Because, it can  increase your productivity to burn fats.
Picture of obesity prevention

Benefits of being healthy weight

In addition, to reducing the risk of health conditions and maintain a healthy weight provides other benefits:

References:

Obesity, obese, overweight, underweight, weight, health, health problem, calories, fat, bodies, severe, diseases, WHO, men, women, BMI, check-ups, quality, CHF, OSA, sleep, sleep cycle, blockage, breathing, oxygen, cardiac death, stroke, fatigue, drowsiness, heartbeats, irregular, arrhythmias, blood sugar, risk, death, GERD, pregnancy, causes, fats, sugars, physical activity, screen time, diet, limit, benefits, sleep patterns, circulatory system, energy.

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Raihan Ridzuan

Raihan Ridzuan, Bachelor of Science (Hons) Pharmacology, is Customer Relationship Executive of Mayflax, one of the nation’s leading healthcare and marketing company.

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No adverse CV outcomes and excess risks of death from Febuxostat

Cr. Halacious

Source from MIMS.com

According to the results of a meta-analysis, the use of febuxostat does not appear to come with an increased hazard of mortality or adverse cardiovascular (CV) outcomes, for the treatment of patients with gout and hyperuricemia.

Data from 15 randomized controlled trials were collected by researchers and contributed to a total of 16,070 participants. The proportion of patients with hypertension varied between 27.7 percent and 100.0 percent, while those with diabetes ranged from 6.9 percent to 100.0 percent.

A median follow-up of 6.4 months were used across the trials, and the use of febuxostat vs control (allopurinol or placebo) did not result in a significant increase in the risk of CV mortality and all-cause mortality.

The same was true for adverse CV outcomes, as follows: major adverse CV events (risk difference [RD] 1.40 percent), myocardial infarction (RD, -0.06 percent), stroke (RD, 0.10 percent), or new-onset hypertension (RD, 1.58 percent).

Among patients with existing CV disease, the findings were consistent and the test (Egger’s regression test) did not detect significant publication bias.

The evidence were limited by the presence of low to moderate certainty, the researchers said. Recommendations of evaluating CV events and mortality as an outcome were stated by the researchers, as well as defining major adverse CV events, and comparing the outcomes among different doses of febuxostat over a longer follow-up duration in future trials.

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Lower risks of cancer, cardiovascular diseases and diabetes by having more fibres in your diet

Cr. Joanna Kosinka

Source from MIMS.com

A recent study suggests that to reduce the risk of several chronic diseases and mortality, higher consumption of dietary fibres (DF), particularly soluble (SF) and insoluble fibres (IF) from fruits.

The researchers sought to examine the association of intake of DFs of different types (total DF, SF and IF) and from various sources with the risk of cardiovascular disease (CVDs), cancer, type 2 diabetes (T2D), and mortality in the large-scale NutriNet-Santé prospective cohort.

107,377 participants were included in the cohort study where the usual DF intake was estimated from validated repeated 24-h dietary records over the first 2 years following inclusion in the cohort. To assess the associations between sex-specific quintiles of DF intake and the risk of chronic diseases and mortality.

With the increased intake of total DFs, it was found that T2D risk is being significantly decreased and also correlated with a lower risk of breast cancer. It is also stated that intake from fruits led to a reduced risk of several chronic diseases. . For particularly soluble (SFs), they are correlated with a reduced risk of CVD and colorectal cancer, while IFs reduce mortality from cancer or CVDs.

The investigators stated that to involve different types and sources of fibre, further studies are needed and more emphasis should be put on dietary fibres in public health nutrition policies, as DF intake remains below the recommended levels in many countries.

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