15 research outputs found

    Aspekty kliniczne i mikrobiologiczne zastosowania szczep贸w Lactobacillus rhamnosus PL1 u pacjent贸w z objawami zapalenia odbytnicy w przebiegu chor贸b dystalnego odcinka jelita grubego

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    Nawracaj膮ce stany zapalne odbytnicy i zwi膮zane z nimi dolegliwo艣ci stanowi膮 problem kliniczny u pacjent贸w leczonych z powodu chor贸b proktologicznych. Celem pracy by艂a ocena wp艂ywu probiotycznego szczepu Lactobacillus rhamnosus PL1 na obraz kliniczny i sk艂ad mikrobioty jelitowej u pacjent贸w z objawami zapalenia jelita grubego w przebiegu choroby hemoroidalnej i choroby uchy艂kowej. Materia艂 stanowi艂a grupa 24 pacjent贸w, u kt贸rych nie uzyskano pe艂nej poprawy klinicznej po leczeniu choroby zasadniczej. Oceniano obecno艣膰 i nasilenie objaw贸w klinicznych oraz ilo艣ciowe i jako艣ciowe zmiany w sk艂adzie bakterii obecnych w kale przed 9-tygodniow膮 suplementacj膮 probiotycznym szczepem Lactobacillus rhamnosus PL1, w jej trakcie i po niej. Wyniki: w ca艂ej badanej grupie intensywno艣膰 b贸lu po 12 tygodniach by艂o znamiennie mniejsza (p=0,011) w por贸wnaniu z warto艣ciami wyj艣ciowymi; intensywno艣膰 wzd臋膰 i dyskomfort w jamie brzusznej zmniejsza艂 si臋 znamiennie ju偶 po 3 tygodniach, a po 12 tygodniach r贸偶nica by艂a wysoce znamienna statystycznie (p<0,0001). Nie wykazano znamiennej r贸偶nicy w cz臋sto艣ci zg艂aszanych biegunek, zapar膰, a tak偶e 艣wi膮du i pieczenia w okolicy odbytu. Ju偶 3-tygodniowa suplementacja probiotycznym szczepem L. rhamnosus PL1 spowodowa艂a istotne zmiany ilo艣ciowe i jako艣ciowe w sk艂adzie mikrobioty jelitowej, r贸偶ne w zale偶no艣ci od choroby zasadniczej. Stwierdzono zwi臋kszenie globalnej liczby bakterii z rodzaju Lactobacillus, ze szczeg贸lnym uwzgl臋dnieniem szczepu L. rhamnosus PL1, niezale偶nie od choroby zasadniczej. Wniosek: Probiotyczny szczep Lactobacillus rhamnosus PL1 wydaje si臋 mie膰 warto艣膰 w przywracaniu w艂a艣ciwych proporcji populacji bakteryjnych u pacjent贸w z objawami zapalenia odbytnicy w przebiegu leczenia niekt贸rych chor贸b dolnego odcinka przewodu pokarmowego

    Clinical and microbiological aspects of the use of Lactobacillus rhamnosus PL1 strains in proctological patients with symptoms of chronic proctitis

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    Recurrent proctitis and the symptoms associated therewith pose significant clinical problem in proctological patients. The objective of this study was to assess the impact of the probiotic Lactobacillus rhamnosus PL1 strain on the clinical presentation and composition of intestinal microbiota in patients with symptoms of proctitis in the course of hemorrhoidal disease and diverticulosis. Material consisted of 24 patients in whom no complete clinical improvement could be obtained after the treatment of the underlying disease. Subject to the assessment was the presence and the intensity of clinical symptoms as well as qualitative and quantitative changes in the composition of bacterial flora detected in the stool before, during and after a 9-week supplementation with the probiotic Lactobacillus rhamnosus PL1 strain. Results: In the entire study group, the intensity of pain after 12 weeks was significantly lower (p=0,.011) compared to baseline; the intensity of flatulence and abdominal discomfort was reduced significantly as early as after 3 weeks, with the difference reaching a highly significant level after 12 weeks (pP<0,.0001). No significant difference was observed in the frequency of the reported episodes of diarrhea, constipation, as well as itching and burning in the anal region. As early as after 3 weeks of supplementation with the probiotic L. rhamnosus PL1 strain, significant qualitative and quantitative changes were observed in the composition of intestinal microbiota; the changes differed depending on the underlying disease. An increase in the total counts of the bacteria of Lactobacillus genus, particularly L. rhamnosus PL1 strain was observed regardless of the underlying disease. Conclusion: Tthe probiotic Lactobacillus rhamnosus PL1 strain appears to be useful in restoring appropriate ratios of bacterial populations in patients presenting with symptoms of proctitis in the course of the treatment of certain diseases of the lower gastrointestinal tract

    Advances in the ultrastructural study of the implant鈥揵one interface by backscattered electron imaging.

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    8 p. 3 con fotosThe biocompatibility of titanium implants in bone depends on the response shown by cells in contact with the implant surface. Several developments have been targeted at achieving successful implant treatment. The aim of this study was to develop a novel preparation procedure to evaluate the bone cell response produced at the bone鈥搃mplant interface using the technique scanning electron microscopy with backscattered electron imaging (SEM-BSE). Dental prostheses with an SLA-modified or TOP-modified surface were implanted in a toothless part of the mandibula in female pigs. The animals were sacrificed 12 weeks after surgery, at which time block specimens containing the implants were obtained. These specimens were then processed for SEM-BSE by optimizing a protocol involving chemical fixation and heavy metal staining. In addition, element distribution maps for the implant鈥揵one tissue interface were obtained using a microanalytical system based on energy-dispersive X-ray spectrometry (EDS). This novel visualisation approach enabled a comprehensive study of the extracellular matrix and cell components of the host tissues neoformed around the implant. SEM-BSE images also provided ultrastructural details of the bone cells. This technique appears to be an effective and very promising tool for detailed studies on the implant鈥揵one tissue interface and the host response to the bone incorporation processPeer reviewe
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