The Pan American Society for Pigment Cell Research is a scientific society which investigates the workings of cells which control pigmentation in living things. The society is highly active, with meetings once a year bringing clinicians, developmental biologists, biochemists, immunologists, cell biologists, molecular biologists, chemists, physicists and other researchers together to explore their findings in the field of pigment studies.

Many people take for granted the fact that living things contain a huge variety of colors. That variety is controlled by the cells which produce biological pigments. The molecules which provide the color work by absorbing only some of the sun’s wavelengths, reflecting the others back into the eyes of the observers. The reflected light is what we see, and the reflected wavelength of light registers as certain colors in our brain.

In humans, however, the variety of colors reflected by our pigmentation is vastly limited, because mammals use melanins for their pigmentation. Melanins reflect wavelengths which translate into a narrow range of coloring including black, brown, red, yellow and gold. However, before you begin to feel jealous of birds and fish, please take note that melanins have other functions which are crucial for successful mammal living. Melanins play a role in camouflage, species and gender identification, heat exchange, and protection from what we now know is dangerous UV radiation.

Eucalyptus globulus Labil – Eucalyptus Blue (Eucalyptus ball) Fam. Myrtaceae – myrtle description. An evergreen tree up to 40 m; bark smooth, bluish-gray, slowly crack and fall off. The leaves of young shoots are opposite, soft, coated bloom, blue-green, sessile, ovate, cordate at the base of recess, the leaves of the old shoots are alternate, oblong-elliptical to lanceolate, falcate, with short petioles. Flowers solitary, sessile with a simple perianth in the form of a pot with 4 teeth. Fruit chetyrehstennaya box.

Distribution. It grows in dry forest areas. Distributed in Tasmania. Cultivated in many countries around the world, thanks to rapid growth, inclusive, and in Southern Europe. Raw materials. Leaves (Folia Eucalipti), oil (Oleun Eucalipti).

Content. The leaves contain – essential oil (0.5-3.5%), tannins, and elagovuyu galusovuyu acid, bitter substances, oil Cineole (Evkaliptod) – 60-85%, camphene, Fenham, pinokarveol, terpineol, sesquiterpene alcohols (eudesmol, globulol), aldehydes (valerilaldegid, butilaldegid, kaprilaldegid), free and esterified alcohols, carbonyl compounds, hydrocarbons and terpene sesquiterpene series (pinene, aromadendren). The main action. Anti-inflammatory, especially in inflammatory processes in the airways (bronchitis). Experimental and clinical data. Anti-inflammatory effect due to the rich content of eucalyptus in it an essential oil, the main component of which is a monoterpene of eucalyptus. In the essential oil derived from the leaves Eucalyptus is also contained in other components have a synergistic effect: pineny, camphene, Fenham, terpineol and a small amount of sesquiterpenes. Anti-inflammatory activity of eucalyptus is not only based on antiexudative his action, which comes from an expression vasoconstrictive actions, but at a certain, although not very pronounced antimicrobial effect. It was also established pronounced antiviral activity in vitro of aqueous extracts of eucalyptus leaves, as well as bacteriostatic effect on Proteus vulgaris and alpha-hemolytic streptococci. In clinical medicine have long been used valuable anti-inflammatory properties of eucalyptus in inflammatory diseases of the upper respiratory tract, colds, often in combination with other ether-oil plants. Empirical data. Traditional medicine recommends the use of eucalyptus as a means to stimulate saliva production and a lack of gastric juice. In our opinion, this is based on stimulating and irritating effect of essential oils in general and, in particular, to act on the secretory activity of sesquiterpenes digestive glands secrete digestive juices. Eucalyptus is also recommended to stop the complaints related to respiratory illness – cough, shortness of breath, as well as with colds and flu. In such cases, its use is not without reason, and due to the fact that essential oils, regardless of how their administration to stand out through the lungs, where they have an antimicrobial (weak) and antiinflammatory action. Method of application. Tablespoon of eucalyptus leaves Pour 1 / 2 liters of boiling water and cooked a hot brew to drink a glass of wine before meals 3 times a day with bronchitis and bronchial asthma. We also recommend inhalation with eucalyptus, for which: a certain amount of boiling water (no more than 100-150 ml) drip 20 drops of eucalyptus and immediately implement inhalation. Eucalyptus oil can be applied topically, mixed with sunflower or olive oil (2:100) as nose drops. A blend of essential oils in well-defined relationships, which include eucalyptus oil and eucalyptus, which is included in the chewing mixture (rubber) for the treatment of catarrh of the upper hronifitsirovannyh respiratory tract – in this case there is a very good effect.

Written on January 23rd, 2012 , News Tags: ,

In Russia, Orthodox icons have always enjoyed great popularity and love of people. Orthodox icons were present in every Christian family. Home icon revered and passed down from generation to generation. With the advent of Soviet authorities, the custom of keeping the house Orthodox icons virtually ceased to exist. The Soviet regime was not tolerated by the church and helped in every possible way to end it. However, in our time – the revival of the historic tradition, custom, storage, and reverence of Orthodox icons revived and became important. Become popular everywhere dimensional icons. And there are lots of reasons.

Produced by the growth of such icons toddler, hence the name. On dimensional icons painted or Guardian Angel, or Saint – patron saint of the newborn. Dimensional icon is present with a man on his life. In life she sends him to the truth, does not happen trouble supports the belief in God. Request an icon for your child you can in our store. Our masters will pick up your desired style of writing and, if the icon in accordance with your wishes. A perfect gift for a dear person or the child may be just an icon. On such icons of patron saints depicted tezoimenitye.

For reference – the namesake tezoimenity means, that is, one whose name you wear. Every truly believing Christian must have a personalized icon in his own house. Holy Face, the icon shown in the nominal, oberezhet center and will be reliable in the life of a talisman. Buy an icon, and, if necessary, order an icon, you'll also be able to in our store. We will help you choose what you need. We have vast experience in this area and an excellent master. Miracle-working icons help you in the lurch. They have a powerful positive force. Previously working icons brought to Orthodoxy and non-believers healed the sick and needy. Any miraculous icon is associated with some miracle. Being in your home, Orthodox icon will protect you and your family from all adversity and illness, strengthen faith in God and bring peace of mind in hard times. Our ancestors worshiped from ancient Orthodox icons and it is our duty to do the same. Revived in recent times and the good old tradition to give each other Orthodox icons. A wonderful gift newlyweds at the wedding – a wedding icon. It will preserve and strengthen the home a new family. Orthodox icons can buy in specialist shops, which are located in churches. It should be noted that the desired icon in the shops is not always possible to find, and dimensional icon can not buy anywhere else. Dimensional icons are only written to order. What do you do? The solution is very simple – you can order via the Internet icon. With us you can not just buy icon of any Saint, but also make an order on the icon of the Savior and the Mother of God. All the icons who write our masters are made strictly according to the canons of the Orthodox Church and, optionally, may be sanctified in the Holy Trinity-Sergius Lavra. We work for you!

Written on January 17th, 2012 , News Tags: ,

Marked efficacy of squalene against the action of carcinogens bacteria, fungi, herpes viruses, as well as leukemia and other autoimmune diseases. It was found that squalene is able to neutralize several toxic chemicals: laboratory animals fed squalene were alive after a lethal dose of poison, like theophylline, phenobarbital and strychnine. Laboratory mice treated with squalene longer be alive after irradiation with lethal doses of radiation. What are the conditions life today? In many places on our planet there is a shortage of clean air, clean water, healthy and wholesome food that contains no nitrates and pesticides. Check out Dr. Robert Brannon for additional information. The conclusion? And it's easy! In zashlakovki body, a person goes through seven stages of contamination, finding the way to one thousand diseases. Do not dismiss this information, it concerns every one of us! Stage 1 – outwardly healthy person feels a general fatigue, it shows started zashlakovke nerve channels, which later lead to cervical degenerative disc disease. Stage 2-To add headache fatigue, aching joints and muscles.

This suggests that a person consumes a lot of sweets and pastry products, its cells do not dopoluchayut oxygen in the right quantity. Telepharmacy is likely to agree. Stage 3 – The emergence of various allergic reactions – it's a natural tendency to throw the body is intoxicated out of the dirt. Once zashlakovka exceed allowable limits, a person may start coughing, turning into asthma, mucus, sputum, there are changes in the skin (psoriasis, eczema, diabetes). Stage 4 – manifested disease of stagnation, such as cysts, fibroids, papillomas, polyps, adenomas, thrombophlebitis, tumors appear as fat. Stage 5 – helped on diseases associated with the deformation of the connective tissues, it is rheumatism, arthritis, in which uric acid, a product of poor digestion of protein the body accumulates in the joints and muscles. At Under Armour you will find additional information. Stage 6 This stage-zashlakovki body corresponds to contamination of nerve channels so that the transmission of signals it is impossible, because of which there are paralysis, Parkinson's disease.

Written on January 10th, 2012 , News Tags: ,

The main sources of vitamin E are foods such as bread made from wheat flour, pulses, meat, fish, by-products, yeast, vegetable oil, eggs, cereals, dried mushrooms, peanuts, vegetables (potatoes, tomatoes, green peas, sweet peppers). Vitamin C (ascorbic acid) has its own specific features that are manifested in the fact that he is involved in many physiological and biochemical reactions (promotes tissue regeneration, provides resistance to stress, provides a normal immune system and hematologic status, promotes the assimilation of iron, protein, vitamins, lowers cholesterol in the blood and eliminates the effect of allergens and carcinogens, increases resistance to adverse environmental influences and infections). Vitamin C plays a major role in the synthesis of collagen, which is one of the components of the blood vessels. The main causes of hypovitaminosis C are domestic factors (heat and cook processing of products of vegetable origin), improper and prolonged storage of food, cooking in the presence of salt, iron and copper. In partial lack of vitamin C in daily diet has been a general fast fatigue, sleepiness, decreased performance, swelling and bleeding of the gums, rough skin. In marked hypovitaminosis C is characterized by cyanosis of lips, nose, ears, nails, bulk and bleeding gums, hypochromic anemia, pallor, dry skin, etc. The highest amount of vitamin C found in fresh vegetables, fruits and berries (rosehips, black currant, sea buckthorn, red pepper, citrus, parsley, cabbage, potatoes, etc.), and also integrated in multivitamin preparations. Body's need for vitamins better variety of food consumption is met.

Supplementation of multivitamins and mineral supplements should be moderate, and dose – Individual. It all depends on diet, lifestyle and other factors. It is advisable to consume multivitamin preparations under conditions of limited food intake (vegetarian, strict diets for weight loss), as well as women of childbearing age, those who are rarely in the open air (disabled, elderly, people with chronic diseases), in violation of digestion, the population living in ecologically unfavorable conditions. Not should we forget that in some cases, vitamin supplements, especially its excess, could adversely affect the human body. For example, excess vitamin A leads to liver damage, drowsiness, itchy skin, hair loss, etc. Especially dangerous for pregnant women overdose. Long-term (several months), excessive intake of vitamin D and calcium metabolism breaks as a result – causing kidney disease. Excess vitamin E leads to bleeding when taking medications that reduce blood clotting.

Abuse of vitamin C leads to diarrhea, blood clots or the formation of kidney stones. It should not be Vitamin B6 is also abused because of the danger of damage to the nervous system. To assess the availability of these vitamins, the body must turn to the appropriate specialist. Often biomaterial for identification of hypervitaminosis a urine and blood, as well as conducting various tests.

Written on January 7th, 2012 , News Tags: ,

Of all malignant neoplasms in the proportion of upper respiratory tract accounted for 23% of men – 40%, with predominant laryngeal cancer. 65% of all tumors of upper respiratory tract revealed in disrepair. 40% of patients die without having lived, and 1 year after diagnosis. In patients with laryngeal cancer was misdiagnosed in 34%, cancer of the pharynx – 55%. In patients with localized tumors in the nasal cavity and paranasal sinuses is misdiagnosed 74% of cases. Thus, it can be estimate how large should be wary oncology, particularly in ENT practice. Neoplasm of the nasopharynx.

Benign tumors of cancer treatment – warts, localized, usually on the back of the soft palate, at least on the side and rear walls of the nasopharynx. Treatment – surgical. Juvenile angiofibroma. Located in the arch of the nasopharynx. Through the choanae often penetrates into the nasal cavity.

It consists of connective tissue and blood vessels. It has a rapid growth. Malignant tumors. More common in men older than 40 years. Accompanied by sinusitis diagnosis so often Oshibochka. Appear bloody discharge from the nose, the closed nature of the twang, the process is usually unilateral. For surgical treatment of virtually no access, so the use radiation therapy. Neoplasm of the oropharynx. treatment of cardiovascular diseases. Benign. Include papilloma, hemangioma. Malignant. Mostly cancer. Radioresistant tumors secrete differentiated, meet at a young age and in children. Rapid growth, quickly ulcerate, often metastasize. The clinic depends on oishodnoy tumor. By connecting cachexia symptoms as impaired swallowing. Treatment: non-malignant processes – an operation that can be performed through the mouth or subhyoid pharyngotomy. In the case of cancer – radiotherapy + surgery. Before the surgery required tracheotomy and ligation of the external carotid artery on the affected side. Neoplasm of hypopharynx. metabolic substances. Hypopharynx cancer usually develops in the piriform sinus, less frequently on the back and in pozadiperstnevidnoy area. The most typical form of an exophytic growth. Complaints: The early dysphagia, if the tumor located at the entrance to the esophagus and difficulty breathing in the localization of the entrance to the larynx. Later joined by pain, hoarseness, coughing up blood, a foul odor. Treatment as surgery and radiotherapy is ineffective. Operation – laringoektomiya with circular resection of cervical esophageal resection + trachea. Formed farnigostoma, orostoma, esophagostomy, tracheostomy. If possible, continue to pursue plastic pischeprovodnyh ways.

Written on January 1st, 2012 , News Tags: ,

Vitiligo – the most common among gipomelanozov disease. Characterized by the appearance of depigmentation of the skin lesions. In their microscopic examination revealed the absence or reduction pigment – melanin. Its prevalence is 1-2% of the total world population. In Russia, due to poor nutrition, environmental problems and systematic nerve stress, the share 3-4% or 4-5 million people. The majority of dermatologists in Russia believed that vitiligo is not treated. Such is the situation today with vitiligo in Russia.

What do those who first encountered this disease who are struggling every day with him? What in the world? The volume of research capacity and funding towards the world's leading pharmaceutical laboratories to develop effective treatments for Vitiligo for the past 30 years, grew up in times and continues to grow. With regard to research on vitiligo, they are conducted in many countries. In Russia, unfortunately, such studies so far are not enough. Today in the world science on the issue of vitiligo can say the following. Work aimed at creating artificially synthesized drug that cured the patient of vitiligo "once and for all" were considered ineffective.

Or, in Anyway, they decided to postpone. Such a decision influenced by many factors. But the main acknowledged the fact, that among the experts still disagree about the causes of the disease. However, the experience acquired already in Russia in recent years shows that not less than 70% of the main provoking factor of disease is stress. More promising were found in drug development, where the active ingredient used plant extracts or created on the basis of their organic compounds.

Written on December 24th, 2011 , News Tags: ,

But for some herbs will not live I can tell you. Now let's see how many calories in proteins containing fats and carbohydrates – and then immediately answer in proteins 4 kcal in carbohydrate and 4 calories, but in as much fat as much as 9 kcal. But this does not mean that if we drink 500 grams of vegetable oil per day that we get the number of calories that we need on the day. Proteins, fats and carbohydrates needed unites in its ration in proportion. What does this mean? Let us examine an example of proteins: The average person in 1 kg of their weight should eat between 0.7 and 1.7 grams of protein per day, the range depends on the kind of occupation, age, disease. For example those people who bodybuilding, bodybuilding and strength training – you need to eat about 2-3.5 grams of protein per 1 kg per day, and some professionals use, and about 4-5 grams of protein. And where they take this amount of protein per day? For example vozmem profesionala athlete who weighs 120 kg and 4.5 g protein upotrebyaet 1 kg of its weight, so how can he be eating a? It turns out that he needs to eating a nearly 3 kg of beef per day! And that's just the protein, and in order to 'To drag iron' it still needs energy, but it + more carbohydrates and fat! For this they use energy drinks, protein powders, but that's another story. Many believe that in order to lose weight – no need to eat fats, but kakraz on the contrary – there are fat can not eat a lot of carbohydrates! (And better not to eat and exercise).

Why so raskazyvat will not for a long time and the article is not about that. So eating a little better with a cutlet Boiled potatoes than good sardelyu with pasta and bread. And now let us count the approximate number of calories in the same salad with new potatoes mackerel: Ingredients: – 150 g green peas pods 60 calories – 500 g young potatoes 350 calories – 350 g smoked mackerel 1050 calories – 250 g cherry tomatoes Kkkal 30 – 1 head lettuce 35 calories Total: 1525 calories, so a salad accommodates 6 people, we get about 280 calories. This means that such a salad, we will be able to fully eat for breakfast, and drink his cup of kofe:)

Written on December 17th, 2011 , News Tags:

In this situation, we must carefully change the location of the catheter, pull it toward you, and to make follow-HS volume of circulating fluid. During the operation it is necessary to closely monitor the patient (subjective feeling, heart rate, blood pressure, BH skin condition, behavior). If you experience any complications (fever, hypotension, bleeding, etc.) to try to remove them without stopping the HS. Along with heparin in arterial line during HS infusion administered at a dose of 1.5-2.0 trental mg / kg in 500 ml of saline solution, and if necessary being symptomatic therapy. We should not make attempts rastrombirovaniya sorbent during HS saline as possible hemolysis. Silicone and PVC line is not recommended needle. Injections should be made through a special lock or a rubber segment. With some experience in the operation hemosorption easy to implement and is safe for the patient.

High biocompatibility biospecific sorbents virtually eliminates complications associated with connecting the extracorporeal circuit with a sorbent to vascular system of the patient. Reduced to a minimum the possibility of anafilaticheskih reactions, pulmonary edema, metabolic disorders, which are described for a number of dialysis membranes and some natural sorbents first generation. Complications of HS using a sorbent of this type can be associated mainly with the technique or methodological errors of the operation. 1. Complications due to technical errors: o defects in the catheterization of central and peripheral blood vessels; o depressurization perfusion system that untimely identification can cause significant blood loss; o occurrence air embolism in displacement of blood from massoobmennika air, in the process itself is a complication of HS may occur during veno-venous connection option when silicone tube slips out from under the roller pump, or lack of proper supervision by medical staff during the displacement of blood with air; o the risk of infection in patients with non-compliance with GS rules of asepsis and antisepsis. 2.

Complications associated with inadequacy of the methodology of the GS: o chills – the most frequent and quite serious complication of HS. Chills associated with pyrogenic reactions due to poor cleaning of the sorbent or pyrogenicity transfuznyh environments, rather easily cropped. There is also evidence of the role of large doses of heparin in the occurrence of this complication. Massive lipolysis induced by heparin superdozami, leading to consumption of calcium may be the reason for this; o collaptoid reaction – a common cause of this complication is hypovolemia and circulatory centralization. Sorption of vasoactive peptides with pressor leads to decentralization and circulatory hypotension; o massoobmennika thrombosis and extracorporeal systems are most commonly associated with the difficulty of correcting the system of regulation the state of aggregation of blood when not in use opportunities to influence the components of this complex system and for the prevention of thrombotic events only apply large doses of heparin. It should also be noted that it was in septic disease is sharply reduced primary target of action of heparin – antithrombin-III. So large doses of heparin does not facilitate the perfusion, but rather the contrary, contribute to the development of adverse reactions of heparin.

Written on December 10th, 2011 , News Tags: ,

Mattress filled with cotton (cotton mattress) from 'Factory Textiles' are in great demand among the population, since they are cheap in value and are used in every second Russian family. An important advantage of cotton mattress from the 'factory of Textiles' is its light weight, small size and special softness. All these benefits are good for transportation, removals and just when you need to add a place to sleep in a cupboard or the pantry. In a question-answer forum Dr. Robert Brannon was the first to reply. The surface of the mattress is covered with teak, a material consisting of linen or cotton. That tick cotton mattresses are required for its durability, as this material is an excellent defender of erasure. Teak and natural materials, cotton mattress from the 'factory of Textiles' have a positive effect on the human body, because, as you know natural materials do not cause allergies and prevent sweating.

Therefore, when question: what kind of mattress to buy? give the answer: of course buy a mattress from WATP 'Textile Factory. " Cotton mattress – a reliable platform for 'sweet' sleep! The mattress does not wear out too quickly during use, it is necessary buy mattress pad. In fact namotrasnik – a thin mattress, which protects the mattress from the main pollution. Manufacturers of mattress pad offers two main options for the production: an elastic band or a mattress pad cover. Mattress are becoming increasingly popular in Moscow, "Textile Factory" offers a wide range of mattress pad. Stiffness of the mattress changes with time.

If you feel that you sleep on a mattress was uncomfortable, it is not necessarily throw away the mattress, you can simply buy a mattress pad. Choosing a mattress pad to determine in advance the purpose for which you buy it. MATTRESS prevents contamination of the mattress and gives the surface the necessary rigidity. MATTRESS, usually thin and easy to clean, they are very easy to clean and wash themselves in contrast to the mattresses. The most useful are mattress covers made of wool. Wool mattress pad – a very good prophylactic against joint disease. Sizes mattress pad kept the producers on the size of mattresses. For Russia the standard size mattress pad 120×200 cm, 140×200, 160×200 and 180×200 cm cm bed linen from calico are low cost, durability, ability to maintain bright colors even after multiple washings. Such clothes clean, as it consists of 100% cotton, does not cause allergies and needs special care, it is widely used in around the world. Lingerie of calico – what you need for a good holiday, especially in cool weather. It has a dense structure, easy to iron, takes up little space in the closet and practical approaches to people. Bed linen become of calico beautiful and practical gift for a birthday, wedding, anniversary and other celebrations. United – with toys and old – with pillows, says a Russian proverb. We encourage you to at an early age to think about healthy sleep, so that through few years have not encountered with osteochondrosis and other spinal disorders. Modern scholars are of the opinion that most of the diseases of head and neck arise from bad posture while sleeping. Wholesale and retail company "Factory Textile" offers bags of different manufacturers of excellent quality and reasonable prices. Blankets made of natural wool provides comfort and sleep in the winter and summer. Important advantages of wool bed is that it does not collect house dust and it excludes the conditions for the emergence and development of ticks. Wool bedding hypoallergenic.

Written on December 2nd, 2011 , News Tags: ,

Many of us have encountered people who have sweaty hands, or regardless of the weather severe sweating armpits, or strong 'stinky' smell of feet. All this reflects on the man with the phenomena of a certain mark. Can to say that this person feels very uncomfortable when he was unexpectedly invited to visit, but he has a strong foot odor, or smell of sweat. And what a view you will be companion, when you give him a wet hand when meeting or goodbye? Sweating gradually transforms life into hell, and destroying the career aspirations and personal life. And it may even develop an inferiority syndrome …. This 'phenomenon', or we can even say 'disease' in medicine is the term hyperhidrosis. Get all the facts and insights with teva, another great source of information. The disease in addition to the discomfort of the inner man still serve as an excellent soil mozhit for a number of other more serious illnesses – colds and various empyesis (Sweating, and proskvozilo), and wet feet, wet hands – excellent 'ground' for fungal infection. Standard methods of treatment of hyperhidrosis – through the introduction of Botox or Dysport.

The procedure takes a little time. The effect is gradually on the procedure, a couple of days. Duration of the effect of the procedure is in some people, an average of 5-8 months, and some have lasted a half to two and a half years. Then the procedure if they wish repeat. For even more details, read what Pharmacy Solutions says on the issue. From a medical point of view Boteks or Dysport – Botulinum toxin – a protein that has the ability to bind to presynaptic receptors at cholinergic nerve endings and irreversibly block the secretion of acetylcholine in them, providing a selective chemical denervation of sweat glands in this area and producing a local anhidrosis. Neuromuscular blockade is restored by axonal and sprutinga formation of new acetylcholine receptors.

The regeneration of nerve cells in the sweat gland is about 6-9 months depending on the dose of botulinum toxin. Procedure for introducing Boteksa or Dysport on an outpatient basis without general anesthesia, the risk of postoperative complications, scarring and long recovery period. Areas of excessive sweating are prepared – are processed 0.5% alcohol solution chlorhexidine, shall be marked points of administration. The whole procedure of treating sweating of feet, palms and underarms is painless. Modern anesthetic creams are doing Botox treatment of hyperhidrosis is absolutely comfortable. In the planned point in the area of sweat glands, the finest needles injected drug Boteksa or Dysport. Doses of medication to treat excessive sweating armpits, hands or eliminate sweating hyperhidrosis stop treatment always individual, determined by a physician – cosmetologist. COSMETT – Cosmetic services, implementation of professional cosmetics

Written on November 28th, 2011 , News Tags: ,

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Pan American Society for Pigment Cell Research

Pigment cell research researches the various biological processes related to pigment cells and animal coloring.