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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The deadlift emulates a movement that we do almost
on a daily basis — choosing things up off the bottom or a
low floor. Even if you've never step foot on a lifting platform before, should
you've ever hinged to seize something from the floor, you've completed a
deadlift (but perhaps not a safe one). Coaching deadlifts helps us construct strength and proper biomechanics with hip hinging so that we are
in a position to safely decide up things located down low.
As evident by the lengthy listing of muscle
tissue above, the deadlift recruits many various muscular tissues directly.

You May train several muscle tissue without delay,
maximising your time in the health club. Plus, you'll find a
way to load up heavy weight given the quantity of muscle
recruitment, which will assist build energy. So grab these dumbbells and get training–and
don’t neglect to download the Gymshark Training App to get impressed by preprogrammed dumbbell exercises.

Right Here, we’ll cowl the exact muscle teams used in deadlifts and clarify tips on how to increase muscle activation by deadlifting
with correct kind. Dumbbell deadlifts present a graded approach (2 x 2kg dumbbells, 2 x 4kg dumbbells…) as performers be taught the motion sample and
progressively enhance the load. One arm and one leg raise variations
are superior for correctingstrength and muscle imbalances.
Increase the range of motion of your posterior chain muscular tissues working, which is ready to develop pressure and strength in the end
ranges of those muscles. This is a superb exercise to learn how to perform the hip-hinge movement
pattern by using the stick, which guides you into the correct position. Some efficient compound dumbbell workouts for fats loss
include plank to upright row, squat thrusters,
forward lunge bicep curls, and renegade rows.

These workout routines convey lots of muscle teams into play, increasing calorie burn and muscle density,
which boosts metabolism.
The major distinction between the standard or sumo deadlift and the one-arm model is that the
OAD throws your body considerably off steadiness..
Yes, you can use dumbbells with completely different weights to accommodate
strength imbalances. Begin with a lighter weight in the weaker hand and gradually
improve it as you get stronger. Entice bar jumps and banded deadlifts are both nice deadlift variations for developing energy,
transferring quick and shifting with intent. The deficit deadlift involves standing
on a platform or plates to increase the vary of motion of
the carry.
Unlike squats, you are not in danger to have the weight fall on prime of you.

The deadlift is an ideal instance of the basic mannequin of progressive resistance coaching.
Your body will respond to the imposed calls for of
accelerating the load you lift.
You won't anticipate this to be an essential muscle for performing
a deadlift, but they actually assist stabilise the shoulders as you progress, Khan says.
"Simple glute activations can be banded sidestepping, banded monster walks, even some banded squats,"
she says. To prep your hamstrings, she recommends
good mornings, including that some individuals even like to do a quantity
of Romanian deadlifts with very gentle weight. If you’re looking to get that thick, highly effective upper back
that screams, then it’s time to offer your traps some love with the dumbbell exercises that
we’re going to cover right now.
Sumo deadlifts work lots of the identical muscles as the
standard barbell deadlift. The major distinction is that sumo
deadlifts use a wider stance, allowing for higher leg drive.
The standard deadlift uses a narrower stance and locations extra strain on the posterior chain, the abdominal
muscular tissues, and the erector spinae to
maintain an upright place and shield the backbone.

Some nice glute, low-back, and hamstring variations are also detailed in that article.
So, whether or not you need a program to enhance your efficiency in your sport or you simply wish to look good at the seaside, there is a program designed just for you.

Romanian deadlift works as a terrific accent carry to help
in the development of those greater compound lifts.
Do NOT try to ‘reach’ the barbell towards
the ground since you consider the plates ought to contact the floor.
If you want to use a single kettlebell, you'll maintain it in the same side hand
as your standing leg. For example, in case your left leg is planted,
you'll hold the kettlebell in your left hand.

Love this one for the handstand push-ups, dumbbell deadlifts, and
built-in rest. When performing any deadlift exercise, the spinal erectors contract to keep the backbone
straight. Deadlifts are a compound train that targets a quantity of muscle teams,
including the spinal erectors. The spinal erectors, also referred to as erector spinae muscular
tissues, run along the spine to maintain it steady and in a impartial, upright place.
Nonetheless, if you’re slightly extra advanced, or coaching for moreathletic or bodybuilding functions, you would possibly actually get so much out of tryingsome
of those one-arm variations.

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