Zamoření bytu štěnicemi - pozor na histamin

  • Posted on: 2 February 2022
  • By: admin
štěnice a histamin

Pokud štěnice napadnou váš byt, čeká vás nelehký úkol jak se jich zbavit. 

Štěnice domácí se množí velmi rychle, ve dne je prakticky neaktivní, v noci když lidé a domácí zvířata spí se vydávají na "výpravu" za krví.

Má se za to, že některé druhy štěnic by mohly přenášet např. bakterii Trypanosoma cruzi (původce Chagasovy choroby) případně bakterii Bartonella quintana (původce tzv. Zákopové horečky). Toto tvrzení se ovšem laboratorně nepotvrzuje.
Kousnutí a následné sání krve od štěnice ovšem způobuje různé závažné dermatitidy (kožní onemocnění) v reakci na přítomnost proteinu nitroforin ve slinách štěnic, který zabraňuje krevním destičkám ve srážení krve.

trus štěnic obsahuje velké množství histaminu

Některé studie tohoto nepříjemného parazita nyní ukazují na další problém, který vzniká po zamoření obydlí štěnicemi.
Vědci zjistili, že trus štěnic, který se běžně, při jejich výskytu, objevuje na místech, kde štěnice sají krev, nebo se zdržují, obsahuje velké množství hormonu (protein) histamin.
Histamin je u citlivých jedinců spouštěč nejrůznějších akutních zánětlivých reakcí jako je např. kopřivka, bušení srdce, průjem, anafylaktický šok, respirační potíže apod.

Vědci učinili pokus a na vzorku bytů z nichž některé byly zamořeny štěnicemi, jiné nezamořeny odebrali vzorky prachu v místnostech. Tyto vzorky potom testovali na zvýšenou přítomnost histaminu.
Výsledkem jejich zkoumání bylo, že byty, v kterých se štěnice nevyskytovaly obsahovaly stopové množství histaminu, pro člověka nepostřehnutelné.
V bytech, kde se štěnice vyskytovaly byly nameřeny hodnoty histaminu v průměru více než 54 μg/100 mg prachu. Toto množství je srovnatelné s uvádením množstvím histaminu v kysaném zelí, které se nedoporučuje při histaminové intoleranci konzumovat.
Vzorky prachu použité jako vzorek byly jemně prosáté a dá se tedy říct, že histamin se vyskytuje v tak jemné podobě, že jde prakticky o poletavý prach, který je velmi snadné vdechovat.

Na závěr vědci upozornili na fakt, že histamin se v této koncentraci v bytech vyskytoval i po dezinsekci prováděné vysokou teplotou - nad 50°C. Ani to nevedlo ke snížení jeho množství. Další poměrně důležitá věc je, že histamin je velmi stálý a ani po měsících nedochází k jeho degradaci.

zdroj:DeVries ZC, Santangelo RG, Barbarin AM, Schal C (2018) Histamin jako emergentní vnitřní kontaminant: Akumulace a perzistence v domácnostech zamořených štěnicemi. PLoS ONE 13(2): e0192462. https://doi.org/10.1371/journal.pone.0192462
 

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Like different confirmed programs, GVT works incredibly well for hypertrophy because
it exposes every muscle to repeated stress––10 sets per movement.

Even skilled lifters can construct large amounts of muscle due
to the sheer problem of the 10 Sets Method. Beginner or
superior, an important factor to recollect is that this program is tried and tested.
It is not worth changing into injured simply since you think your body
can deal with the stress of more exercises.
Your body needs relaxation and recovery after coaching on this method.
If you have by no means tried a bodybuilding program earlier than I would personally suggest you start off with a primary 2 workouts/ week
scheme (Monday and Saturday in our structure).

Originating in Germany during the Nineteen Seventies, it entails performing ten units of ten repetitions for a single train. There aren’t many things that old
fashioned physique builders and trendy sports activities scientists agree on but considered
one of them is that quantity is a key variable within the
quest for muscle progress. In training phrases, volume refers to the total weight lifted during
a session. If you want to increase your quantity, the most sensible approach to do it is to extend the number of sets
you carry out. If you tried to do it by growing the burden you lift you’d hardly be
capable of do any reps, and when you did it by doing high-rep
sets then you’d take yourself out of hypertrophy rep ranges.
One way is to carry out 2 different exercises into one "super-set".

The second superset enhances this with accent workouts targeting supportive muscle tissue and fine-tuning your total power.
The weights chosen for each train will depend in your one-rep max.

A one-rep max (1RM) is the utmost weight you possibly
can carry for one full repetition of an exercise.
A high-volume approach promotes hypertrophy and can be perfect for superior lifters needing to extend stimulus for
continued muscle progress. You can also expect significant power improvements, especially in the principle lifts like squats, deadlifts, and bench presses.
This means workouts that focus on the identical muscular tissues you’re about to target with your workout.

The best way to obtain that is to do a set or two of every
train utilizing very mild weights, warming up
the key muscle tissue used. This will allow you to nail your first set proper when the
time comes, in addition to reducing your risk of
harm.
Matthew's other passions embrace studying about mindfulness,
strolling via nature, touring, and always working to enhance
overall. Relaxation time between sets in 10×10 bodyweight
exercises is essential. It is recommended to use a
stopwatch as a end result of we tend to increase rest intervals as quickly as we reach fatigue.
This improve in the load will be the new place to begin on your German Volume Coaching.
Once more, you will be unable to complete all
10 repetitions after the initial units. Remember, GVT is solely one of many coaching strategies available, and it’s essential to search out what works
best for you and aligns with your preferences and targets.

GVT might look like an excellent fat loss training plan due to the great amount of quantity you’re doing.
Extra workouts and sets would permit trainees to burn extra energy and create the necessary deficit for fats loss (4).
This is a program I’ve used several times all through my
many years of lifting. In addition, for these core compound
workout routines requiring 10 sets, you would enhance the weight every week by 5-10 kilos, and reduce the reps by 1.
To begin a German Volume Training program successfully you’ll
have to know a few things beforehand.
While GVT can be challenging, it presents numerous advantages, including
muscle development, power positive aspects, and improved conditioning.
One approach to make volume training simpler is to make use of the same
weight for each train. For instance, if you have a combi-bar then you possibly can perform 20kg curls and 20kg tricep extension on the same bar.

This makes working out a lot simpler as you can rapidly transition between exercises.
Having included German Volume Training (GVT) into my own training, I
can confidently say it’s one of the most effective applications for remodeling your body composition.

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