Összefoglaló. Az élelmiszer-eredetű megbetegedések igen gyakoriak, bár pontos adatok nem állnak rendelkezésre, mivel az enyhe, gyorsan múló gastrointestinalis tünetekkel a betegek nem fordulnak orvoshoz, vagy nem történik diagnosztikus vizsgálat. Az amerikai Járványügyi és Betegségmegelőzési Központ (CDC) adatai szerint az USA-ban évente 6 lakosból 1 esik át élelmiszer okozta tüneteken. Az ételintoxikációk során a baktérium által termelt toxinok okozzák a tüneteket, közülük a leggyakoribb a Clostridium perfringens, a Staphylococcus aureus és a Bacillus cereus okozta, élelmiszer-eredetű intoxikáció. A nem megfelelően tárolt vagy hőkezelt élelmiszerekben - beleértve a S. aureus által szennyezett anyatejet - ezen baktériumok életképesek maradnak, elszaporodnak, és toxint termelhetnek, illetve toxinjaik megőrzik megbetegítőképességüket. Az étel elfogyasztása után 3-12 órával hányást, hasmenést okoznak. A tünetek többnyire 24 órán belül megszűnnek. A Clostridium botulinum súlyos neurológiai tünetei miatt emelkedik ki a többi toxikoinfekció sorából. C. botulinum okozta tünetekre felnőtteknél házi készítésű konzervek és húskészítmények elfogyasztása után jelentkező gastrointestinalis vagy neurológiai tünetek esetén kell gondolnunk. A Clostridioides difficile szintén a toxinjai révén okoz súlyos, életveszélyes megbetegedést, továbbá az esetek 20-30%-ában számolnunk kell az infekció relapsusával. Növekvő gyakorisága miatt ismernünk érdemes a laboratóriumi és klinikai diagnosztika részleteit és a legmodernebb kezelési lehetőségeket, úgymint megfelelő mintavétel, mintatárolás és -szállítás, tenyésztés, toxinkimutatás, helyes tüneti kezelés, antibiotikumkombinációk, széklettranszplantáció és monoklonálisantitest-kezelés. Orv Hetil. 2020; 161(48): 2019-2028. Summary. Foodborne diseases are quite common, however, accurate data are not available because patients do not visit doctors with mild, rapidly resolving symptoms and diagnostic tests are not performed. The Centers of Disease Control and Prevention (CDC) estimates that, in the USA, 1 in 6 citizens gets food poisoning yearly. Symptoms of intoxication are due to the toxins produced by bacteria, mostly by Clostridium perfringens, Staphylococcus aureus and Bacillus cereus. These bacteria can survive in not properly stored or heated food, including S. aureus contaminated breastmilk. They can multiply and produce toxins causing intoxications. The gastrointestinal symptoms start 3-12 hours after consumption of the contaminated food and resolve in 24 hours. Clostridium botulinum causes severe neurological symptoms that should be suspected after consumption of home-made cans, smoked hams and sausages. The disease caused by Clostridioides difficile is not a foodborne one, but C. difficile causes severe infection via its toxins. Another problem is that C. difficile infection recurs in 20-30% of cases. Due to the increasing incidence of foodborne diseases, it is worth to learn the precise clinical and laboratory diagnostic algorithms including sampling, storage and transportation of samples, cultivation of bacteria and differential diagnosis of these diseases, furthermore the most up-to-date symptomatic and causative treatment options like antibiotic combinations, stool transplantation and monoclonal antibodies. Orv Hetil. 2020; 161(48): 2019-2028.
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http://dx.doi.org/10.1556/650.2020.31858 | DOI Listing |
Acta Neuropsychiatr
January 2025
Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway.
Objective: Accelerated ageing indexed by telomere attrition is suggested in schizophrenia spectrum- (SCZ) and bipolar disorders (BD). While inflammation may promote telomere shortening, few studies have investigated the association between telomere length (TL) and markers of immune activation and inflammation in severe mental disorders.
Methods: Leucocyte TL defined as telomere template/amount of single-copy gene template (T/S ratio), was determined in participants with SCZ ( = 301) or BD ( = 211) and a healthy control group (HC, = 378).
J Anim Sci Biotechnol
January 2025
Department of Animal Nutrition and Feed Science, State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China.
Background: The synchronized absorption of amino acids (AAs) and glucose in the gut is crucial for effective AA utilization and protein synthesis in the body. The study investigated how the starch digestion rate and AA levels impact intestinal AA digestion, transport and metabolism, breast muscle protein metabolism, and growth in grower broilers. A total of 720 21-day-old healthy male Arbor Acres Plus broilers were randomly assigned to 12 treatments, each with 6 replicates of 10 birds.
View Article and Find Full Text PDFAnal Sci
January 2025
MOE Key Laboratory of Resources and Environmental System Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, People's Republic of China.
As one of the most harmful heavy metal pollutants, hexavalent chromium Cr(VI) is becoming a serious threat to human health. Thus pursuing a remarkably sensitive method to monitor the Cr(VI) concentration in natural conditions is favored for the fast response to prevent harm. In the present work, an ethylenediamine (En) and SiO-modified wool keratin-based carbon quantum dot (CQD)(En@CQDs@SiO) fluorescent sensor is prepared, and the En is found to improve the discrimination ability by binding the Cr(VI) with the surface carboxyl groups.
View Article and Find Full Text PDFDrugs Aging
January 2025
The Dementia Centre, HammondCare, St Leonards, NSW, Australia.
Background And Objectives: Despite their limited benefits and serious adverse effects, psychotropics remain frequently prescribed for neuropsychiatric symptoms (NPS) of dementia. Psychotropic polypharmacy, the use of two or more concomitant psychotropic medications, is therefore not recommended for people with dementia. The objectives of this study were to investigate the prevalence of psychotropic polypharmacy in Australians living with dementia whose caregivers sought external NPS support from Dementia Support Australia (DSA; the national provider of NPS support) and the association of psychotropic polypharmacy with their demographics and NPS characteristics.
View Article and Find Full Text PDFAnal Chem
January 2025
Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China.
Designing single-template molecularly imprinted chiral sensors for the enantioselective recognition of various chiral amino acids (AAs) is of great importance for chiral analysis. Here, a dummy template-based chiral sensor is developed by using l-alanine (l-Ala) as the dummy template and poly(-phenylenediamine) as the imprinting layer, which can be used for the enantioselective recognition of various chiral AAs such as Ala, tryptophan (Trp), tyrosine (Tyr), cysteine (Cys), and arginine (Arg). Compared with conventional single-template molecularly imprinted chiral sensors, the designed single-template chiral sensor shows great universality for the recognition of chiral AAs since all chiral AAs possess an Ala-analogous segment.
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