LA SILFIDE La Sylphide rappresenta uno dei balletti più noti ed allo stesso tempo è considerato il balletto che introduce l’era romantica della danza.
Il libretto è di Adolphe Nourrit, nella versione originale.
Musiche di Jean Schneitzhoffer
Coreografia di Filippo Taglioni
La prima rappresentazione: 12 marzo 1832 all'Opera di Parigi
Balletto in II Atti
I Atto
Ambientato in Scozia, protagonista maschile è un giovane di nome James che si appresta ad unirsi felicemente in matrimonio con la bella Effie, fin quando tale sicurezza dei sentimenti per la bella fidanzata inizia a vacillare non appena inizia ad apparirgli in sogno una stupenda silfide innamoratasi di lui. Il giovane non riesce a sottrarsi al fascino della silfide ed a sua volta se ne innamora. Continuano i preparativi delle nozze e nel corso di essi appare tra la folla la strega Madge che rivela ad Effie quanto il suo sposo sia fortemente preso da un’altra, così James caccia via la strega, ma resta nuovamente abbagliato dalla bellezza della silfide che si manifesta solo a lui. Prima che inizi la cerimonia quest’ultima, si appropria dell’anello nuziale e lo porta via con se nella foresta, così da farsi inseguire da James per riavere l’anello. Atto II Giunto nella foresta, la Strega appare a Jemes porgendogli una sciarpa magica che a suo dire sarà in, grado di catturare la silfide. In realtà si tratta di una sciarpa avvelenata che poggiata sulle ali dell’amata non solo gliele fa cadere, ma ha un effetto mortale sulla povera Sylfide che circondata dalle compagne si spegne. Intanto procedono le nozze di Effie, non più con il giovane James, che intanto guarda la scena da lontano,ma con un amico Gurn. L’altra versione estremamente nota di tale balletto, conosciuta soprattutto per il ruolo di spicco attribuito al protagonista Maschile, è quella di Bournonville. Quest’ultimo dopo aver assistito alla rappresentazione francese, ne fece una versione personale, cambiandone stile e tecnica adeguati al suo modo di far danza e scegliendo per arrangiamenti musicali il ventunenne Hermann Severin von Lovenskjøld. Tale versione fu poi rappresentata, al Teatro Reale di Copenaghen.
Excessive dose or long-term corticosteroid remedy could contribute to the event of danger elements for heart assaults, similar
to hypertension and hyperglycemia. Steroids additionally enhance the chance of blood clots forming in blood vessels,
potentially disrupting blood move and damaging the heart
muscle. If blood can not attain the center or mind, it can result in a coronary
heart assault or stroke. High LDL and low HDL levels improve the chance of atherosclerosis, a situation involving a buildup of plaque inside arteries.
Misunderstandings and misinformation usually drive folks toward these substances, but a well-informed strategy is at all times safer.
Anabolic steroids are highly effective in enhancing muscle mass and
energy however come with extreme bodily and psychological dangers, significantly at
the supraphysiological doses used illicitly. Their use remains a
major public health concern, demanding further research
on long-term results and improved prevention strategies.
The National Institute on Drug Abuse (NIDA) is the lead federal company supporting
scientific research on drug use and addiction.
According to NIDA, anabolic steroids are often referred to as "anabolic-androgenic steroids" because of their anabolic results and androgenic
results on the similar time. Nonetheless, someone who has been taking these medication for a long time usually finds
it tough to cease taking them, fearing to lose the bodybuilding
results. Docs can prescribe anabolic steroids for varied medical reasons,
but the primary is low testosterone ranges that require
long-term administration of testosterone alternative
remedy.
Understanding the long-term dangers of steroid habit is essential for anyone
considering or already using these medication. Anabolic steroids are synthetic substances that mimic the consequences of testosterone
in the physique, often used to construct muscle mass and enhance athletic
efficiency. However, the use of these substances can result in serious health risks and issues.
You healthcare supplier will decide if cortisone injections are right for you by contemplating
your prognosis, degree of success with different therapies, age, general well being, and more.
There are pros and cons of those pictures, each of which must
be weighed on a case-by-case basis. The first step in treating anabolic steroid dependency is to
discontinue use and to seek medical assist. This is as a outcome
of coming off the drug all of a sudden may find yourself in a
variety of withdrawal symptoms, including melancholy, anxiety, headaches, insomnia, anorexia, extreme tiredness,
decreased intercourse drive, and muscle and joint pain.
The most common unwanted effects of steroid nasal
sprays happen in and around the nostrils, as properly as surrounding
areas. They may advise you to stop utilizing your nasal steroid spray for
a couple of days. Likewise, a lot safer natural alternatives have been found for most of the different conditions steroids "treat" (e.g., DMSO for musculoskeletal ache and injury).
•Steroids exemplify a standard criticism of recent medicine—treating symptoms rather than addressing the foundation cause can result in way more severe
persistent well being points. The commonest adverse impact of topical steroids
is a stinging or burning sensation after
the medication is applied.
Acne in individuals who take steroids is mostly found on the chest but
can additionally be seen on the back, shoulders, neck,
and face. While their health risks differ by the kind and amount taken, they are often harmful and cause unwanted aspect effects at any dose.
Whereas they work properly to regulate sure sicknesses, they can trigger a quantity of unwanted effects, such
as elevated blood sugar levels and weight acquire. For
this purpose, they’re reserved only for average to extreme inflammatory situations (34).
TRT is generally safe for males with low testosterone levels when administered by a medical professional.
AAS-induced hepatotoxicity is influenced by genetic components, and is related to the infiltration of inflammatory cells in liver tissue, such
as lymphocytes, neutrophils and eosinophils [83,84]. Oxidative stress could have a job
in figuring out liver harm consequent to AAS abuse by activating androgen receptors
that result in mitochondrial degeneration of hepatic cells [84].
A current research evaluated the liver results of 5 weeks of
administration of ND in rats. The outcomes highlighted an increase of plasma levels of liver necrosis markers, an increase in collagen deposition in liver parenchyma, portal space, and the centrolobular vein [84].
The mechanism involved in collagen deposition could be the rise within the quantity and within the exercise of Kuppfer cells.
In this regard, Kuppfer cell activation leads to the
production of many inflammatory cytokines corresponding to TGF-b1,
NF-Kb, IL-1b, related to the liver fibrosis process [85,86].
Normal testosterone levels range from 300–1,000 ng/dL for males and 15–70 ng/dL for ladies.
In the HAARLEM examine, a transient small improve in serum creatinine concentrations of unknown medical relevance was noticed
throughout AAS use (from 93.1 μmol/L (1.05 mg/dL) to 97.8 μmol/L (1.11 mg/dL)).
Albuminuria, as measured by dipstick analysis, emerged or elevated in 16% of
the subjects (155). A larger improve in serum creatinine levels was
noticed in a small 4-week placebo-controlled
trial with resistance-trained males randomized
to 330 mg every day of the oral prohormone 3β-hydroxy-5α-androst-1-en-17-one
(1-androsterone) or placebo (38). Bioactivation of the prohormone into the potent anabolic steroid
17β-hydroxy-5α-androst-1-en-3-one (1-testosterone) outcomes from oxidation at carbon 3 of the A-ring and
reduction at carbon 17 of the D-ring of the steroid nucleus (156).
In those receiving 1-androsterone, serum creatinine ranges increased considerably from 97.3 μmol/L (1.1 mg/dL) to
a hundred and fifteen.0 μmol/L (1.3 mg/dL).
Oral steroids are recognized to cause acne-like breakouts
referred to as acneiform eruptions on the trunk and
limbs of some people. While that is uncommon with topical steroids, the medicine can generally cause comedones—better generally recognized as blackheads or whiteheads—on the face with extended use.
They may cause a quick lived rise in blood pressure and an increase
in LDL ("bad") cholesterol levels while HDL ("good") cholesterol levels decrease.
The project used dopaminergic neurons as a outcome of origin of Parkinsonism.
Primarily Based on the results, it was proven that androgens can cause dopaminergic cell death via a cascade beginning with the impairment of mitochondrial operate and
increasing oxidative stress. The increased quantity of free oxygen radicals prompts the caspase-3-dependent cleavage of protein kinase C, resulting in DNA fragmentation and neuronal
apoptosis [115]. According to the Nationwide Institute on Drug Abuse, many of the info the company has gathered about
the long-term effects of anabolic steroids has
been obtained from case reports and not from
formal epidemiological research. Most of the
analysis conducted on long-term steroid results thus far has been accomplished with animal research.