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W pracy przedstawiono metodą służącą do oceny właściwości antyoksydacyjnych ekstraktów herbaty z zastosowaniem modelu ludzkiej krwinki czerwonej. Zawiesinę krwinek poddawano oksydacji za pośrednictwem nadtlenku kumenu, powstający w wyniku oksydacji lipidów błony komórki aldehyd malonowy (MDA) oznaczano metodą spektrofotometryczną. Wodny ekstrakt herbaty dodany do układu: krwinki czerwone i nadtlenek kumenu, wywierał działanie protekcyjne w stosunku do błony komórki, powodując obniżenie poziomu powstającego MDA.
Dokonano przeglądu zasobów informacji toksykologicznej w sieci komputerowej Internet w okresie kwiecień-lipiec 1998. Materiał selekcjonowano pod kątem przydatności w toksykologicznych badaniach naukowych oraz w nauczaniu toksykologii na poziomie uniwersyteckim. Zasoby serwerów toksykologicznych podzielono na dwie grupy: funkcjonalną i tematyczną. W obu grupach łącznie wytypowano 15 źródeł najlepiej spełniających założone kryteria.
Oceniono wpływ benzo(ghi)perylenu na toksykinetykę pirenu oraz aktywność enzymów mikrosomalnych szczura. Stwierdzono, że benzo(ghi)perylen podany trzykrotnie p.o. nie wpłynął znacząco na zmiany parametrów toksykokinetycznych pirenu podanego dożylnie i dożołądkowo. Natomiast w sposób istotny zwiększył aktywność enzymów mikrosomalnych wątroby szczura ocenioną na podstawie zmian aktywności deetylazy-7-etoksykuma- ryny.
W pracy przedstawiono wyniki oceny właściwości mutagennych pirenu, benzo(a)- antracenu i ich mieszanin w proporcjach 1:1 oraz 3:1 w zakresie dawek od 2 do 40 µg/płytkę w płytkowym teście Amesa. W obecności frakcji S9, właściwości mutagenne wykazał benzo(a)antracen oraz mieszaniny pirenu i benzo(a)antracenu. Oceniono również właściwości mutagenne ekstraktów frakcji mikrosomalnej i cytozolowej wątroby szczurów po uprzednim podaniu dootrzewnowym badanych WW A. Ekstrakty nie wykazały wpływu na wzrost rewersji mutacji w szczepach bakterii Salmonella typhimurium.
Background: Kabuki syndrome is a rare genetic condition characterised by pathological changes within all the systems of the body, but with variable gene expression. All the patients described in the literature so far have specific facial features resembling the masks of actors from the Japanese Kabuki Theatre and mild to moderate mental impairment. Diagnosis is made based by genetic testing for mutations of the KMT2D and KDM6A genes. Therapy is mainly based on symptomatic alleviation of the effects of mutation, rehabilitation and improvement of the quality of patients’ life. Then prognosis of patients with Kabuki syndrome is closely related to the severity of symptoms, which is very variable. Aim of the study: The purpose of the study is to present the nursing problems based on the case report and to present complications caused by the disease entity. Material and methods: The criterion for including the patient in the study was the legal guardian’s (parent’s) consent for the child to participate in the study. Qualitative research was conducted using analysis of medical records, interview with the child and the child’s legal guardian, direct and indirect observation of the child for psycho-social changes related to the disease and interpretation of the data in the context of the theoretical knowledge and our own observations. Case report: The report is based on the case of a 16-year-old girl, diagnosed (at the age of fourteen) with rare genetic disorder – Kabuki syndrome. The patient experiences some characteristic symptoms – big, red lips, lowset and sticky-out ears, drooping eyelids and short fingers and toes. One of the first symptoms suggesting Kabuki syndrome were: spitting up during breastfeeding, problems with swallowing, motor clumsiness and epilepsy. The role of the nursing team during hospitalization was to take care because of habitual dislocation of patella, and to provide psychological suport. At present time the girl uses a wheelchair or she moves on her knees Results: The manifestations of chronic disease contribute to the feeling of excessive stress, regardless of the patient’s age. An adequate diet enriched with proteins contributes to the prevention of bedsores among individuals with Kabuki syndrome, immobilised to various degrees. Regular consultations with specialists, such as cardiologist, neurologist, gastroenterologist, orthopaedist, ophthalmologist, psychologist, orthodontist, speech therapist, immunologist, endocrinologist and dietician reduce the risk of complications associated with the disease in the patient with Kabuki syndrome. Early implementation of rehabilitation, focused to increase muscle tension, contributes to maintaining autonomy and self-care in patients with Kabuki syndrome.
Oznaczono zawartość niektórych metali ciężkich i wielopierścieniowych węglowodorów aromatycznych (WWA) w glebach pobranych z tras komunikacyjnych w Krakowie w m-cu czerwcu 1991 r. Zaobserwowano wzrost zawartości oznaczanych WW A w punktach o zwiększonym nasileniu ruchu kołowego. Dla metali stwierdzono znaczne przekroczenia najczęstszych ogólnych zawartości w warunkach naturalnych.
Background: Functioning in a peer group plays an important role in child development. Building self-esteem of children depends on many factors such as physical health, self-evaluation of their physical performance, academic achievement, social support, family relationships, as well as relationships with peers and teachers. Importance of contacts with peers increases during school-age. At this time children are not able to reject the opinion of other people and subject their behaviour completely to the expectations of their peers. When the need for emotional contact is not satisfied, the complex of being different appears. Isolation within group causes a sense of inferiority, the child becomes passive and resigned. Children, who are chronically ill, rejected or isolated often follow negative emotions in their actions, they become aggressive towards other children or do not want to continue learning. Often the decision about an individual teaching plan results in further isolation of the child. The child’s position in the peer group affects the developing personality, self-confidence and self-esteem. Aim of the study: The aim of the study was to determine the interpersonal relationships of young school-aged children with type 1 diabetes in their peer groups. Material and methods: The study was conducted on children with type 1 diabetes and their parents, who are supervised by Clinic of Diabetes, Regional Medical Center in Opole. The research tool used in both groups was a questionnaire consisting of open and closed questions elaborated by the authors of this study. Results: 73% (41) of evaluated children declared that diabetes does not hinder their performance at school. 93% (55) children claimed that they do not hide their condition from their peers. In addition, 61% (34) talk about their illness with their peers and 69% (38) of them can count on their peers’ help in self-control of diabetes. 71.9% (46) of parents of children with type 1 diabetes allow their children to participate in school trips and 68.8% (44) to participate in school competitions. Conclusions: In most children, diabetes does not affect children’s performance at school. They participate in classes, are accepted and liked in their peer group. Chronically ill children should be able to participate in all types of activities as much as their healthy peers. It seems necessary to continue studies on performance of young school-aged children with type 1 diabetes in their peer group.
Background: Along with an increasing number of cancer patients, the need for cytostatic drugs is also increasing. Nursing staff are the largest professional group exposed to the potential dangers of these substances. Aim of the study: Assess the awareness of nursing staff who have direct contact with cytostatic drugs in the use of personal protective equipment (PPE). Material and methods: The research group consisted of 101 nurses routinely exposed to cytostatic drugs. A diagnostic survey and questionnaire technique were used along with the author’s original questionnaire. Results: Of the respondents, 58.42% (n=59) never used protective shoes while dealing with cytostatics, while 53.4% (n=54) never used long-sleeved, waterproof uniforms; 49.50% (n=50) did not apply half masks, and 34.65% (n=35) failed to protect their eyes with protective glasses. The most common cause of not using the protective equipment was identified as lack of time (72; 71.29%). Deficiency of training on protective measures while working with hazardous cytostatics was cited by 37.62% (n=38) as the reason for their behavior, while almost 22% of them claimed that their employer did not provide them with a sufficient amount of protective equipment for individual use. The older, more experienced and higher-educated the staff, the higher awareness among them about the need for using PPE. Conclusions: Higher-educated and more experienced nursing staff should constitute the source of ‘good practices’ and educate younger undergraduate colleagues theoretically and practically. Employers and management staff should provide employees with more training on the correct application of protective measures and increase the intensity of control of the use of personal protective equipment.
The objective of the study was to assess the effects of both 5-vanadium organic complexes with bipyridine and phenanthroline (1-5) and small insulin injections on oxidative stress indices in streptozotocin (STZ)-induced diabetes in rats (Dil- Di5). In all groups of the animals, the glucose, uric acid, urea, α-tocopherol, and SOD activity were measured in the plasma, and the GSH level was measured in the liver. The glucose level was higher in all the diabetic (D) rats; however, no differences were observed in the vanadium-treated STZ rats. Of all the STZ-treated rats, the highest level of uric acid was observed in the diabetic control group (CD). Substantial differences in the uric acid level were observed between the diabetic control group and some of the vanadium- treated groups: Dil, Di4, and Di5. Significant differences for the urea level were observed between all the diabetic rats and healthy rats. For the α-tocopherol level, a difference was observed only between the Di and Di3 groups. A difference in SOD activity was observed between the Di and Di4 groups. The type of vanadium complex also had an influence on SOD activity, where differences were observed in the Di3 group in contrast to the Di4 and Di5 groups. In three groups of vanadium-treated STZ diabetic rats (Dil, Di2 and Di4) the glutathione level in the liver was higher than in the STZ-diabetic rats, as well as in the normal control rats. In conclusion, the type of administered complexes of vanadium and diabetes had different influences on the antioxidant defence.
W przeprowadzonych badaniach ludzkie erytrocyty inkubowano z buforem zawierającym glukozę w zakresie stęż. 72,9 – 354,1 mg %. Po upływie 18 godz. oceniano zmiany równowagi pro-/antyoksydacyjnej mierząc poziom powstałego MDA oraz zmiany w aktywności SOD. Dalsza inkubacja zawiesiny krwinek z kwasem salicylowym powodowała zmiany w aktywności SOD oraz wzrost protekcji krwinek przed dodatkowym czynnikiem utleniającym którym w zastosowanym eksperymencie był nadtlenek kumenu. Wysokie stężenie glukozy hamowało ten efekt.
Zabytkowy kościół pod wezwaniem Wszystkich Świętych w Sierotach (pow. gliwicki) wymaga poważnych prac remontowych. Stąd ważne jest rozpoznanie środowiska geotechnicznego obiektu i jego wpływu na stan techniczny kościoła i otoczenia. Autorzy na podstawie badań i analiz zdefiniowali zagrożenia, część z nich omawiając szczegółowiej i sugerując rozwiązania.
The objective of the study was to assess the effects of a high-fructose diet as opposed to a starch diet (standard or enriched, respectively) on oxidative stress indices in rats fed for 9 weeks. In some groups of the animals, fructose overload diminished cellular glutathione peroxidase (GPX1) activity in the liver, while in others, the enrichment of diet with buckwheat enhanced heart GPX1 activity. No change in GPX1 activity was detected in the testes. Similarly, different diets did not affect significantly either thioredoxin reductase (TR) in the testes and kidneys, or superoxide dismutase (SOD) activity of red blood cells. All study groups exhibited decreased malondialdehyde content in plasma and ferric reducing ability of plasma, as compared with control groups. Taken together, these findings support the hypothesis that a diet high in fructose significantly changes antioxidant defence status in rats, but it can be counteracted by the addition of an appropriate nutrient.
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