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  • Mezzo86
    Bodyweb Advanced
    • May 2007
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    Ahahahah grazie Marco!
    Cosa stai combinando..hai dei dubbi?

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    • Mezzo86
      Bodyweb Advanced
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      Spero vi piaccia...per me è stupendo...ora che siamo in avvicinamento alle gare certe immagini dicono tanto sù ciò che è la preparazione come sacrificio,conoscenza di noi stessi e la gioia di quei secondi sul palco...

      YouTube - "The Dreams of a Few" Bodybuilding motivation
      Last edited by Mezzo86; 27-04-2010, 12:47:10.

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      • dr.j
        dr.j Member
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        Ci sto lavorando sopra da parecchio, studi nuovissimi e ipersignificativi in continuo arrivo insieme a notevoli evidenze e possibilità di funzione ed utilizzo (ho trovato già qualche raro medico specialista con apertura mentale che inizia a dosare i livelli ematici....)





        Vitamin D Crucial to Activating Immune Defenses

        ScienceDaily (Mar. 8, 2010) — Scientists at the University of Copenhagen have discovered that Vitamin D is crucial to activating our immune defenses and that without sufficient intake of the vitamin, the killer cells of the immune system -- T cells -- will not be able to react to and fight off serious infections in the body.


        Journal Reference:
        • von Essen et al. Vitamin D controls T cell antigen receptor signaling and activation of human T cells. Nature Immunology, 2010; DOI: 10.1038/ni.1851



        Reference

        For T cells to detect and kill foreign pathogens such as clumps of bacteria or viruses, the cells must first be 'triggered' into action and 'transform' from inactive and harmless immune cells into killer cells that are primed to seek out and destroy all traces of a foreign pathogen.
        The researchers found that the T cells rely on vitamin D in order to activate and they would remain dormant, 'naïve' to the possibility of threat if vitamin D is lacking in the blood.
        Chemical Reaction that Enables Activation

        In order for the specialized immune cells (T cells) to protect the body from dangerous viruses or bacteria, the T cells must first be exposed to traces of the foreign pathogen. This occurs when they are presented by other immune cells in the body (known as macrophages) with suspicious 'cell fragments' or 'traces' of the pathogen. The T cells then bind to the fragment and divide and multiply into hundreds of identical cells that are all focused on the same pathogen type. The sequence of chemical changes that the T cells undergo enables them to both be 'sensitized to' and able to deliver a targeted immune response.
        Professor Carsten Geisler from the Department of International Health, Immunology and Microbiology explains that "when a T cell is exposed to a foreign pathogen, it extends a signaling device or 'antenna' known as a vitamin D receptor, with which it searches for vitamin D. This means that the T cell must have vitamin D or activation of the cell will cease. If the T cells cannot find enough vitamin D in the blood, they won't even begin to mobilize. "
        T cells that are successfully activated transform into one of two types of immune cell. They either become killer cells that will attack and destroy all cells carrying traces of a foreign pathogen or they become helper cells that assist the immune system in acquiring "memory." The helper cells send messages to the immune system, passing on knowledge about the pathogen so that the immune system can recognize and remember it at their next encounter. T cells form part of the adaptive immune system, which means that they function by teaching the immune system to recognize and adapt to constantly changing threats.
        Activating and Deactivating the Immune System

        For the research team, identifying the role of vitamin D in the activation of T cells has been a major breakthrough. "Scientists have known for a long time that vitamin D is important for calcium absorption and the vitamin has also been implicated in diseases such as cancer and multiple sclerosis, but what we didn't realize is how crucial vitamin D is for actually activating the immune system -- which we know now. "
        The discovery, the scientists believe, provides much needed information about the immune system and will help them regulate the immune response. This is important not only in fighting disease but also in dealing with anti-immune reactions of the body and the rejection of transplanted organs. Active T cells multiply at an explosive rate and can create an inflammatory environment with serious consequences for the body. After organ transplants, e.g. T cells can attack the donor organ as a "foreign invader." In autoimmune disease, hypersensitive T cells mistake fragments of the body's own cells for foreign pathogens, leading to the body launching an attack upon itself.
        The research team was also able to track the biochemical sequence of the transformation of an inactive T cell to an active cell, and thus would be able to intervene at several points to modulate the immune response. Inactive or 'naïve' T cells crucially contain neither the vitamin D receptor nor a specific molecule (PLC-gamma1) that would enable the cell to deliver an antigen specific response.
        The findings, continues Professor Geisler "could help us to combat infectious diseases and global epidemics. They will be of particular use when developing new vaccines, which work precisely on the basis of both training our immune systems to react and suppressing the body's natural defenses in situations where this is important -- as is the case with organ transplants and autoimmune disease."
        Most Vitamin D is produced as a natural byproduct of the skin's exposure to sunlight. It can also be found in fish liver oil, eggs and fatty fish such as salmon, herring and mackerel or taken as a dietary supplement. No definitive studies have been carried out for the optimal daily dosage of vitamin D but as a large proportion of the population have very low concentrations of vitamin D in the blood, a number of experts recommend between 25-50mg micrograms a day.




        More later

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        • GS1
          Bodyweb Advanced
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          natur, il piede come va?
          "Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful." - H C

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          • criss
            MARVEL HERO
            • May 2002
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            bellissimo il video....toccante
            sigpic...Risin' up, back on the street
            Did my time, took my chances
            Went the distance now I'm back on my feet
            Just a man and his will to survive......

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            • dr.j
              dr.j Member
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              E ne avrei una serie, ho cercato di postarne alcuni significativi, l'ultimo (pediatrico) è mooolto importante e credo che sarà il settore dove il futuro vedrà una grossa apertura alla vitamina D (tutto dipende dai mostri BIG PHARMA e quanto ricavo ci si può ottenere....ma questa è un'altra storia).
              Sicuramente la pigra burocrazia della comunità medica dovrà aggiornare i vari RDA.....


              Treating Vitamin D Deficiency Significantly Reduces Heart Disease Risk, Studies Find

              ScienceDaily (Mar. 17, 2010) — Preventing and treating heart disease in some patients could be as simple as supplementing their diet with extra vitamin D, according to two new studies at the Intermountain Medical Center Heart Institute in Murray, Utah.


              References:

              Researchers at the Intermountain Medical Center Heart Institute last fall demonstrated the link between vitamin D deficiency and increased risk for coronary artery disease. These new studies show that treating vitamin D deficiency with supplements may help to prevent or reduce a person's risk for cardiovascular disease and a host of other chronic conditions. They also establish what level of vitamin D further enhances that risk reduction.
              Study findings were presented at the American College of Cardiology 59th annual scientific session in Atlanta on March 15, 2010.
              "Vitamin D replacement therapy has long been associated with reducing the risk of fractures and diseases of the bone," says Dr. J. Brent Muhlestein, MD, director of cardiovascular research at the Intermountain Medical Center Heart Institute. "But our findings show that vitamin D could have far greater implications in the treatment and reduction of cardiovascular disease and other chronic conditions than we previously thought."
              For the first study, researchers followed two groups of patients for an average of one year each. In the first study group, over 9,400 patients, mostly female, reported low initial vitamin D levels, and had at least one follow up exam during that time period. Researchers found that 47 percent of the patients who increased their levels of vitamin D between the two visits showed a reduced risk for cardiovascular disease.
              In the second study, researchers placed over 31,000 patients into three categories based on their levels of vitamin D. The patients in each category who increased their vitamin D levels to 43 nanograms per milliliter of blood or higher had lower rates of death, diabetes, cardiovascular disease, myocardial infarction, heart failure, high blood pressure, depression, and kidney failure. Currently, a level of 30 nanograms per milliliter is considered "normal."
              Heidi May, PhD, a cardiovascular clinical epidemiologist with the Intermountain Medical Center Heart Institute, and one of the study's authors, says the link between low levels of vitamin D and increased risk for a variety of diseases is significant.
              "It was very important to discover that the 'normal' levels are too low. Giving physicians a higher level to look for gives them one more tool in identifying patients at-risk and offering them better treatment," says Dr. May.
              Dr. Muhlestein says the results of these studies will change the way he treats his patients.
              "Although randomized trials would be useful and are coming, I feel there is enough information here for me to start treatment based on these findings," he says.
              Treatment options in this case are simple, starting with a blood test to determine a patient's vitamin D level. If low levels are detected, supplements and/or increased exposure to sunlight may be prescribed.
              Increasing vitamin D intake by 1000 to 5000 international units (IU) a day may be appropriate, depending on a patient's health and genetic risk, says Dr. Muhlestein. He says supplements are the best source of vitamin D because they are relatively inexpensive and can be found at almost any supermarket or drug store. Most supplements provide an average of 400 IU per tablet.
              While exposure to 20-30 minutes of sunlight can provide up to 10,000 IU, Dr. Muhlestein says it is important to use sunscreen and avoid the hottest parts of the day in order to avoid sunburn and the harmful UV rays associated with skin cancer.


              Millions Of U.S. Children Low In Vitamin D

              ScienceDaily (Aug. 3, 2009) — Seven out of ten U.S. children have low levels of vitamin D, raising their risk of bone and heart disease, according to a study of over 6,000 children by researchers at Albert Einstein College of Medicine of Yeshiva University. The striking findings suggest that vitamin D deficiency could place millions of children at risk for high blood pressure and other risk factors for heart disease.



              Vitamin D deficiency was thought to be relatively rare in the U.S. However, recent studies have documented this growing problem in adults. With cases of rickets (a bone disease in infants caused by low vitamin D levels) on the rise, it became clear that many children were also not getting enough of this essential vitamin, which is needed for healthy bone growth, among other biological processes.
              "Several small studies had found a high prevalence of vitamin D deficiency in specific populations of children, but no one had examined this issue nationwide," says study leader Michal L. Melamed, M.D., assistant professor of medicine and of epidemiology & population health at Einstein. Dr. Melamed has published extensively on the importance of vitamin D.
              To learn more about the prevalence of vitamin D deficiency (defined as less than 15 ng/mL of blood) and vitamin D insufficiency (15 to 29 ng/mL), the researchers analyzed data on more than 6,000 children, ages one to 21, collected by the National Health and Nutrition Examination Survey (NHANES) 2001-2004.
              The researchers found that 9 percent of the study sample, equivalent to 7.6 million children across the U.S., was vitamin D deficient, while another 61 percent, or 50.8 million, was vitamin D insufficient. Low vitamin D levels were especially common in children who were older, female, African-American, Mexican-American, obese, drank milk less than once a week, or spent more than four hours a day watching TV, playing videogames, or using computers.
              The researchers also found that low levels of vitamin D deficiency were associated with higher parathyroid hormone levels, a marker of bone health, higher systolic blood pressure, and lower serum calcium and HDL (good) cholesterol levels, which are key risk factors for heart disease.
              "We expected the prevalence of vitamin D deficiency would be high, but the magnitude of the problem nationwide was shocking," says lead author Juhi Kumar, M.D., M.P.H., a fellow in pediatrics at Children's Hospital at Montefiore Medical Center, The University Hospital and Academic Medical Center for Albert Einstein College of Medicine. Dr. Kumar will become an assistant professor of pediatrics at Weill Cornell Medical College in August, 2009.
              "We know from earlier NHANES data that vitamin D levels have declined over the last 20 years," says Dr. Melamed. "Kids have more sedentary lifestyles today and are not spending as much time outdoors. The widespread use of sunscreens, which block UV-B rays, has only compounded the problem." The body uses UV-B sunlight to convert a form of cholesterol in the skin into vitamin D.
              Dr. Melamed recommends that children should consume more foods rich in vitamin D, such as milk and fish. "But it's very hard to get enough vitamin D from dietary sources alone," she says.
              Vitamin D supplementation can help. In the study, children who took vitamin D supplements (400 IU/day) were less likely to be deficient in the vitamin. However, only four percent of the study population actually used supplements. The American Academy of Pediatrics, which recently updated its vitamin D guidelines, now recommends that infants, children, and teens should take 400 IU per day in supplement form.
              Supplements are especially important for those living in the country's northern regions where the sun may be too weak to maintain healthy vitamin D levels. Supplements are also critical for infants who are breast-fed, say the researchers. Breast milk contains relatively little vitamin D, while formula is fortified with the vitamin.
              The authors recommend that pediatricians should routinely screen high-risk children for vitamin D deficiency, and that parents should ensure that their kids get adequate amounts of the vitamin through a combination of diet, supplements, and exposure to sunlight.
              "The message for pediatricians is that vitamin D deficiency is a real problem with consequences not only for bone health but also potentially for long-term cardiovascular health. Pediatricians should be screening children for vitamin D levels, especially in the high-risk populations," says Dr. Kumar. A study co-led by Dr. Melamed and published in the Archives of Internal Medicine in August 2008 reported that individuals with low levels of vitamin D may have an increased risk of death from all causes.
              As for parents, says Dr. Melamed, "It would good for them to turn off the TV and send their kids outside. Just 15 to 20 minutes a day should be enough. And unless they burn easily, don't put sunscreen on them until they've been out in the sun for 10 minutes, so they get the good stuff but not sun damage."

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              • GS1
                Bodyweb Advanced
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                YouTube - Mark Dugdale's 2010 Off Season Training - Back, Chest, and Arms
                "Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful." - H C

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                • DORIAN
                  Wanna dance mod
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                  scusatemi ragazzi sn stato presissimo..
                  domani spedisco..mi ricordate a chi manca la maglia...
                  teo criss e poi?
                  sigpic

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                  • simonLA
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                    Originariamente Scritto da DORIAN Visualizza Messaggio
                    scusatemi ragazzi sn stato presissimo..
                    domani spedisco..mi ricordate a chi manca la maglia...
                    teo criss e poi?
                    anche a me..!!!...

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                    • DORIAN
                      Wanna dance mod
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                      Originariamente Scritto da simonLA Visualizza Messaggio
                      anche a me..!!!...
                      Aspetto tutti e poi rimando.
                      sigpic

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                      • dr.j
                        dr.j Member
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                        Avete festeggiato Fabio eh?
                        Azzo, con quel look intimorisci.....però sei un grande anche lì......io da che ero in tuta e vestito largo nella mia golden age.....a ora anche alle gare vado in giacca!

                        Tonight, dopo chiaccherata di monitoraggio con Alex, son partito per l'assalto alle braccia....(questa settimana sto riprendendo una versione fst7 di un paio di anni fa di un npc cliente di Hany che conobbi nel suo forum)
                        Curl con bilanciere 2-3xrisc 2work set con un paio di forzate/negative
                        Curl concentrato hammer 3x10/15 tutte con breve peak contraction e movimento controllatissimo, quasi slow motion circa un TUT "3131"
                        Curl ai cavi alti 7x8/10 30" rest

                        Lock out alla Smith dopo varie serie di risc 3x6/8 da massacro per il peso e la tecnica, alle quali abbiamo aggiunto 1-2 forzate
                        Estensioni dietro alla testa 2x10/14 1 rep+1/4 + burns
                        Spinte in basso con gomiti larghi 4 setsx8/10 30" recupero+ 1triple drop set

                        Tanto stretch, abs and cardio.......

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                        • DORIAN
                          Wanna dance mod
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                          bro io sn un tipo cosi'...ma lo so che ti piaccio cosi'...
                          sigpic

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                          • dr.j
                            dr.j Member
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                            Originariamente Scritto da DORIAN Visualizza Messaggio
                            bro io sn un tipo cosi'...ma lo so che ti piaccio cosi'...


                            La coppola.....alla prossima maglia me la prendi uguale!

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                            • dr.j
                              dr.j Member
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                              @Twins: se ti va posta pure l'allenamento che avete fatto stasera sui QUADS.....poi appena puoi chiama o cmq contattami....mi rendo conto che potrebbe essere un decollo "lento" e impegnativo.....del resto è un C-130!lol

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                              • DORIAN
                                Wanna dance mod
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                                Originariamente Scritto da dr.j Visualizza Messaggio


                                La coppola.....alla prossima maglia me la prendi uguale!
                                sigpic

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