2015年11月23日星期一

Know Yourselves Better through DNA

DNA is not another word to us. It has a wide application, including natural depicting, criminology, human sciences, bioinformatics, the examination amidst DNA and PC, the examination amidst DNA and nanotechnology.

DNA is a kind of run of the mill macromolecules which can shape basic headings and accomplice ordinary advancement and operation of fundamental purposes of repression. Its standard most remote point is information stockpiling that can be risen up out of "plan" or "examinations". The precepts is the change of unmistakable blends within the cells, for case, the required protein and ribonucleic perilous. DNA domains with protein-coding is called quality. Shouldn't something be said concerning other DNA masterminds? Some expect a territory for its structure and some tune in the area of coordinating procured information.

DNA, a long chain polymer, is made out of nucleotides. Sugar and phosphoric harming are joined by an ester bond and they can chart the long chain spine. There is a kind of relationship in one sugar unit and four key parties. The pivotal get-togethers can make regular code neighboring the game-plan of DNA long chain and the obtained code is the reason of union of the protein amino harming development. The course of action of analyzing code is called interpretation which copies RNA as appeared by DNA system. Most RNA contain the information of plot proteins and the others have some remarkable purposes of control, for instance, ribosomal RNA, irrelevant nuclear RNA and small meddling RNA.

DNA can oversee chromosome structure in cells and the entire game-plan of chromosomes are known as the genome. Chromosome will copy before cell division and the procedure is called DNA replication.

For eukaryotes, for event, animals, plants and parasite , chromosomes are secured in within; for prokaryotes, for instance, life frames, chromosomes are secured in nucleoid of cytoplasm. Chromatin proteins in chromosome like histone can oversee and pack DNA to push relationship amidst DNA and specific proteins. By then interpretation of controlling quality can start. DNA have particular structures: dsDNA - twofold stranded DNA and ssDNA single-stranded DNA.

An extraordinary valuation for DNA can fortify the revolution and treatment of procured contamination. DNA offer us some help with knowing more about ourselves.

2015年11月10日星期二

A Brief Introduction of IV Collagen

Collagen, a stringy glycoprotein , is α-peptide chain molded by the framework structure of triple helix. Nowadays, more than ten sorts of collagen have been found and they exist in particular tissues. IV collagen is the vital part which formed tempest basement movies. The regular liver tempest basement layers exist in blood vessel,lymphatic vessels and bile pipes yet it rarely exist in sinusoidal dividers. It creates with change of disturbance when people have liver sickness. Stringy tissue extension is progressive and a huge amount of collagen explanation is made amid the time spent strong tissue plan. By then every sorts of collagen create and the IV collagen augment basically. So it is assumed that the acknowledgment of IV collagen can be seen as the present day record of testing liver fibrosis.

IV collagen accept an important part in Cirrhosis discernment . Its obsession has an adjacent association with liver fibrosis and the level of cirrhosis can be assessed by serum IV collagen. Exactly when people have serious hepatitis, a far reaching measure of liver cells are hurt. Regardless, there is no obvious desmoplastic, so the gathering of serum IV collagen have no unmistakable complexity between strong people and patients. Regardless, when people have steady hepatitis , cirrhosis and liver tumor, serum IV collagen have an obvious increasement on serum IV collagen. Key liver ailment, cirrhosis, constant element hepatitis , unremitting indefatigable hepatitis and serious viral hepatitis can be portrayed by the extended level.

It in like manner require notice that a prominent increasement of IV collagen and base corruption areas is also realized by psychotic changes of tissue organs which is stacked with vascular tempest basement layer portions. This condition prompts Hyperthyroidism, scleroderma, impelled diabetes as opposed to liver sickness.

How to test IV serum? Collagen ELISA and Radioimmunoassay framework are extensively used. Both procedures can be used to test IV serum of the licenses' blood body fluids and tissues.

2015年10月29日星期四

Some Things You Need to Know about HCV

It is comprehended that Hepatitis C(HC) is a transmitted disease which can go on a critical measure of trouble to individuals. The Hepatitis C Virus is basically transmitted through blood. The responses of HC is like HB. HC spreads everywhere all through the world and its illness rate is up to 3%. Once ruined with HCV, it is difficult to cure and it is without a doubt not difficult to accomplish predictable hepatitis and cirrhosis , and even liver peril. It is fundamental to get information of transmission and suspicion.

How HCV transmit? The by and large three transmission techniques are mother to tyke transmission, blood transmission and sexual transmission. Blood transfusion is the most vital transmitted framework and sex is the new transmitted strategy.

Blood transmission. One approach to manage transmit HCV is by blood transfusion and utilizing blood things. In the event that patients are transfused with polluted blood, HCV will reach to liver through blood dispersal and pass on new tainting. The other approach to manage transmit HCV is through harmed skin and mucosa. This is the most expansive transmitted way now. Individuals who get HCV through intravenous blend have 60%~90%.

Furthermore, utilizing dental instruments without strict cleansing is also a crucial transmitted way. Sharing razors and toothbrushes and distinctive cleanliness things comparably address a potential undermine.

Mother to kid transmission. On the off chance that moms have HCV, the malady can attack babies through maternal blood trade, development process and close contact.

Sexual transmission. Individuals have a high danger of getting HCV on the off chance that they take part in sexual relations with HCV contaminated patients. Moreover, if these patients have other sexual transmitted disease like AIDS, individuals who participate in sexual relations with them have higher dangers.

How to kill HCV? One, adjust the pace of life. Try not to drain. An extensive measure of weight will prompts diminished resistance. Two, continue shocking practices and slants away. On the off chance that you need to do some therapeutic surgery, go to the extraordinariness establishments with high notoriety and utilize the irrelevant accommodating contraptions. Four, keep up a key detachment from high-risk sexual practices.

2015年10月12日星期一

The Importance of Protein

It is realized that protein assumes a key part in living structures and no individual can live without protein. Such a large number of individuals need to get enough protein to verify that their body can run typically. Would you like to know what is the capacity of protein? This website will let you know the fundamental elements of protein.

Initially, it assumes a noteworthy part in framing human body. Protein is the premise of all the living structures and the critical piece of life form. It is likewise the principle materials of recharging and repair human tissues. Hair, skin,bone,muscle, mind and blood are made of proteins. So protein is noteworthy to individuals' development and advancement. For instance, mental health complete cell multiplication immediately however the advancement of individuals' cerebrum cells have second crest period. The two times of mental health are from zero to one year old of a child. So it requires adequate protein supplements to bolster the improvement of knowledge for infants in this period.

Second, proteins verify the vehicle of bearers. It can run the typical digestion system and the vehicle of different substances in human body. For instance, hemoglobin can transport oxygen and lipoprotein can transport the fat and substance of cell divider.

Third, it is the structure materials. Individuals are made of innumerable cells. These cells never quit maturing, passing on and having digestion system. A youngsters' skin upgrades each 28days and his gastric mucosa invigorates each 2 to 3days. So if one can make utilization of the admission and engrossing of protein properly, he can make his skin gloss and flexible. In opposite, improper admission of protein will prompts subhealth. On the off chance that one get hurt and neglect to get prompt repair, the maturing velocity of his body will be quickened.

Fourth, adequate proteins verify the resistant reaction of immune response. White platelets, lymphocytes,antibodies and interferon redesign like clockwork. At the point when there are sufficient proteins, they are an in number group and they can expand one hundred times.

Fifth, collagen. Collagen takes up 33% of protein of individuals. It assembles connective

tissues and structures body skeleton including bones, veins and ligaments. Collagen likewise decides skin flexibility and secure mind.

So be mindful so as to the admission of protein.

2015年10月9日星期五

The Basic Substance of Human Body --- Protein

The Basic Substance of Human Body --- Protein
As we know, protein is the basic substance of living forms. No life can live without protein. So it has a close link to other life and living forms. Every cell and important tissue of human body have the participation of protein. From 15% to 20% of human’s weight is protein, which means that an adult with 50kg has protein of 7.5kg to 10kg. There are a variety of proteins in human body and they have different shapes and functions. But most of them are made of more than twenty kinds of amino acids in different proportions and they can have metabolism and update consistently.

What is the characteristics of protein?
First, protein is ambidextrous. It is the macromolecular compound which is made by peptide and amino acids. Protein molecules contain both amino and carboxyl, so it is same as amino acids.
Second,protein can have the hydrolysis reaction.The hydrolysis reaction will happen through the stimulation of acid, alkali or enzyme and finally it become several kinds of amino acids. It is advised to find the breaking point of tissues when the protein is under the hydrolysis.
Third, it owns the features of colloid when it melt in water.Some kinds of proteins can melt in water and form solution. For example, egg whites can melt in water. If the diameter molecular of proteins is same as that of colloidal particles, it will have the features of colloidal.
Fourth, protein precipitation. Adding neutral salts with high concentrations, heavy metal,alkaloids or acids can promote the dissolution of the protein. If add concentrated inorganic salt solution into protein solution, the solubility of protein can be reduced and it will separate out from solution.It is called salting out. The protein which is through salting out also can melt in water and has no effect on its primary features, so it salting out a reversible process. This method can be used to separation and purification of proteins.

How to identify protein? It will produce a specific smell of burning feathers when burn protein. That can be used to identify protein.

2015年9月17日星期四

The Truths You have to Know About Cold and Antibody

It is time of season change, so please be careful to not having a cold. It is believe that most people have suffered from cold and flu. They may have a question that whether taking pills to cure the cold or defeating the virus depends on antibody. This blog aims to tell some truths about cold and antibodies.

Cold is a kind of respiratory disease caused by various viruses and about 30% to 50% of them are caused by a certain kind of rhinovirus serotypes. Because the rest of colds and the subspecies and rhinovirus serotypes of flu are complex, it is hard to produce cross antibodies.

The medicines for common cold are for relieving cold symptoms instead of treating cold. These medicines aim to relieve nasal congestion and swell of nasal capillaries, relieve nasal flu and reduce nasal secretions. In addition, these medicines can promote breathe smoothly to prevent from secondary infection. So cold medicines work more on human body instead of cold.

When read there, maybe some people will choose to treat cold or flu by antibodies. But antibodies produced by cold are not that magical as they imagine. Cold virus antibody stays in human body for one month and virus antibody of flu can stay for eight to twelve months. So immunity after cold will remains in human body for one month and immunity produced by flu remains for eight to twelve months. In addition, immune response of antibody have specificity. Although people can get immunity from cold, this immunity have specificity and it only have immune response to the pathogens which have made people produce immunity.
However, it fails to respond to other pathogens.What’s more, a variety of viruses cause cold. According the research, over 90% of cold are caused by viruses and the known twelve kinds of viruses including influenza virus ,
para influenza virus , rhinovirus and syncytial virus can lead to cold. The human body, after a short time of cure of a kind of virus, may get infected by another kinds of virus. So one person can have repeated colds at a short time.

Finally, the general process of cold treat should be this: have cold, take pills, relieve symptoms, feel better, recover immunity, get Self-treatment.



2015年9月9日星期三

The mutation of influenza virus

Flu is a common disease with high infectious rate and death rate. So it is necessary to know the common sense of the dissemination of flu. Flu is caused by various viruses. Some certain kinds of viruses will die, however, some will be mixed with other kinds of virus as time goes by. Thus these mixed viruses will cause a serious flu. 
Generally, the influenza virus with mutation causes around 500 thousand people’s death all over the world in flu seasons. Some new viruses presents peaceably in human, so it is regarded as normal clod. Some new created viruses are serious and it can lead to a serious flu. The serious flu may break out every ten to twenty years and it will kill millions of people.
What leads the change of influenza virus? The proteins which covers the virus. It always changes in Hemagglutinin and Neuraminidase and cause mutation in the surface of virus. This is called antigenic shift and it creates some new kinds of virus slowly. Human’s immunity can update their database to prevent these new virus from body, But sometimes, some people’s immunity recognize these mixed viruses as new viruses in mistake, so it fail to recognize that these viruses have attacked their body. Finally, they are attacked by these viruses with mutation and cause a serious flu.
In addition, there is another method to the mutation of influenza virus. That is the mixture of two different kinds of viruses. The two different kinds of viruses can exchange genes and create a new kind of virus, which is called antigenic shift. The shift happens rapidly, so many people’s immunity do not have its information. This kind of virus can cause a large number of people’s contagion. 
There have been some serious flu for the virus virus with mutation. H3N2 flu in Hongkong is caused by antigenic shift. It comes every two or three years and cause a serious flu in some area or countries. Every outbreak make people produce some antibodies and then an increasing number of people with antibodies will block its contagion. Antigenic shift happens every ten to thirty years, for example, H3N2 becomes H1N2. Almost people do not have its antibody, so it may cause the global serious flu.