LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 59

Search options

  1. Article: Serum fibroblast growth factor 19 level correlates inversely with clinical and endoscopic activity of inflammatory bowel disease.

    Łukawska, Agata / Mulak, Agata

    Advances in clinical and experimental medicine : official organ Wroclaw Medical University

    2024  

    Abstract: Background: Inflammatory bowel disease (IBD), including ulcerative colitis (UC) and Crohn's disease (CD), is a chronic condition with relapsing-remitting course. Diarrhea and abdominal pain are the most common IBD symptoms. Fibroblast growth factor 19 ( ... ...

    Abstract Background: Inflammatory bowel disease (IBD), including ulcerative colitis (UC) and Crohn's disease (CD), is a chronic condition with relapsing-remitting course. Diarrhea and abdominal pain are the most common IBD symptoms. Fibroblast growth factor 19 (FGF19) is an endocrine factor that inhibits hepatic bile acid production and may be used as a diagnostic marker for bile acid malabsorption.
    Objectives: To assess serum FGF19 levels in active and inactive phases of IBD and find a potential correlation between FGF19 and disease activity.
    Material and methods: Fasting serum FGF19 levels were measured in 105 IBD patients (47 UC patients, 41 CD patients without previous ileocecal resection (NR-CD), 17 CD patients after ileocecal resection (IR-CD), and 17 control subjects). The disease activity was assessed using clinical, laboratory and endoscopic criteria.
    Results: Inverse correlations were found between FGF19 level and intensity of diarrhea (in UC), abdominal pain intensity (in UC and IR-CD) and inflammatory markers (in UC and IR-CD). Moreover, FGF19 concentration was inversely correlated with clinical and endoscopic activity indices in UC and CD.
    Conclusions: Fluctuations in FGF19 level related to clinical and endoscopic activity of UC and CD revealed a clear pattern of higher values in remission than in active disease phases. Fibroblast growth factor 19 may serve as a potential diagnostic biomarker and constitute a new therapeutic target in IBD.
    Language English
    Publishing date 2024-03-26
    Publishing country Poland
    Document type Journal Article
    ZDB-ID 2270257-X
    ISSN 1899-5276 ; 1230-025X
    ISSN 1899-5276 ; 1230-025X
    DOI 10.17219/acem/184132
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: The impact of probiotics on interactions within the microbiota-gut-lung triad in COVID-19.

    Mulak, Agata

    International journal of food sciences and nutrition

    2021  Volume 72, Issue 4, Page(s) 577–578

    MeSH term(s) Angiotensin-Converting Enzyme 2 ; COVID-19/drug therapy ; COVID-19/microbiology ; COVID-19/virology ; Dysbiosis/drug therapy ; Gastrointestinal Microbiome ; Gastrointestinal Tract ; Humans ; Lung ; Probiotics/therapeutic use ; SARS-CoV-2
    Chemical Substances Angiotensin-Converting Enzyme 2 (EC 3.4.17.23)
    Language English
    Publishing date 2021-01-02
    Publishing country England
    Document type Letter
    ZDB-ID 1121877-0
    ISSN 1465-3478 ; 0963-7486
    ISSN (online) 1465-3478
    ISSN 0963-7486
    DOI 10.1080/09637486.2020.1850651
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Bile Acids as Key Modulators of the Brain-Gut-Microbiota Axis in Alzheimer's Disease.

    Mulak, Agata

    Journal of Alzheimer's disease : JAD

    2021  Volume 84, Issue 2, Page(s) 461–477

    Abstract: Recently, the concept of the brain-gut-microbiota (BGM) axis disturbances in the pathogenesis of Alzheimer's disease (AD) has been receiving growing attention. At the same time, accumulating data revealing complex interplay between bile acids (BAs), gut ... ...

    Abstract Recently, the concept of the brain-gut-microbiota (BGM) axis disturbances in the pathogenesis of Alzheimer's disease (AD) has been receiving growing attention. At the same time, accumulating data revealing complex interplay between bile acids (BAs), gut microbiota, and host metabolism have shed new light on a potential impact of BAs on the BGM axis. The crosstalk between BAs and gut microbiota is based on reciprocal interactions since microbiota determines BA metabolism, while BAs affect gut microbiota composition. Secondary BAs as microbe-derived neuroactive molecules may affect each of three main routes through which interactions within the BGM axis occur including neural, immune, and neuroendocrine pathways. BAs participate in the regulation of multiple gut-derived molecule release since their receptors are expressed on various cells. The presence of BAs and their receptors in the brain implies a direct effect of BAs on the regulation of neurological functions. Experimental and clinical data confirm that disturbances in BA signaling are present in the course of AD. Disturbed ratio of primary to secondary BAs as well as alterations in BA concertation in serum and brain samples have been reported. An age-related shift in the gut microbiota composition associated with its decreased diversity and stability observed in AD patients may significantly affect BA metabolism and signaling. Given recent evidence on BA neuroprotective and anti-inflammatory effects, new therapeutic targets have been explored including gut microbiota modulation by probiotics and dietary interventions, ursodeoxycholic acid supplementation, and use of BA receptor agonists.
    MeSH term(s) Alzheimer Disease/microbiology ; Bile Acids and Salts/metabolism ; Brain-Gut Axis ; Humans ; Neuroprotection ; Signal Transduction
    Chemical Substances Bile Acids and Salts
    Language English
    Publishing date 2021-09-27
    Publishing country Netherlands
    Document type Journal Article ; Review
    ZDB-ID 1440127-7
    ISSN 1875-8908 ; 1387-2877
    ISSN (online) 1875-8908
    ISSN 1387-2877
    DOI 10.3233/JAD-210608
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article ; Online: Impact of Primary and Secondary Bile Acids on

    Łukawska, Agata / Mulak, Agata

    Polish journal of microbiology

    2022  Volume 71, Issue 1, Page(s) 11–18

    Abstract: Primary bile acids (BAs), synthesized from cholesterol in the liver, after their secretion with bile into the intestinal lumen, are transformed by gut microbiota to secondary BAs. As natural detergents, BAs play a key role in the digestion and absorption ...

    Abstract Primary bile acids (BAs), synthesized from cholesterol in the liver, after their secretion with bile into the intestinal lumen, are transformed by gut microbiota to secondary BAs. As natural detergents, BAs play a key role in the digestion and absorption of lipids and liposoluble vitamins. However, they have also been recognized as important signaling molecules involved in numerous metabolic processes. The close bidirectional interactions between BAs and gut microbiota occur since BAs influence microbiota composition, whereas microbiota determines BA metabolism. In particular, it is well established that BAs modulate
    MeSH term(s) Bile Acids and Salts ; Clostridioides difficile ; Clostridium Infections ; Gastrointestinal Microbiome ; Humans ; Intestines
    Chemical Substances Bile Acids and Salts
    Language English
    Publishing date 2022-03-14
    Publishing country Poland
    Document type Journal Article ; Review
    ZDB-ID 2234080-4
    ISSN 2544-4646 ; 1733-1331
    ISSN (online) 2544-4646
    ISSN 1733-1331
    DOI 10.33073/pjm-2022-007
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article ; Online: An overview of the neuroendocrine system in Parkinson's disease: what is the impact on diagnosis and treatment?

    Mulak, Agata

    Expert review of neurotherapeutics

    2019  Volume 20, Issue 2, Page(s) 127–135

    Abstract: ... ...

    Abstract Introduction
    MeSH term(s) Brain/immunology ; Brain/metabolism ; Gastrointestinal Microbiome/physiology ; Humans ; Neurosecretory Systems/immunology ; Neurosecretory Systems/metabolism ; Parkinson Disease/diagnosis ; Parkinson Disease/immunology ; Parkinson Disease/metabolism ; Parkinson Disease/therapy
    Language English
    Publishing date 2019-12-12
    Publishing country England
    Document type Journal Article
    ZDB-ID 2112534-X
    ISSN 1744-8360 ; 1473-7175
    ISSN (online) 1744-8360
    ISSN 1473-7175
    DOI 10.1080/14737175.2020.1701437
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article ; Online: A controversy on the role of short-chain fatty acids in the pathogenesis of Parkinson's disease.

    Mulak, Agata

    Movement disorders : official journal of the Movement Disorder Society

    2018  Volume 33, Issue 3, Page(s) 398–401

    MeSH term(s) Fatty Acids, Volatile/metabolism ; Gastrointestinal Microbiome ; Gastrointestinal Tract/metabolism ; Gastrointestinal Tract/microbiology ; Gastrointestinal Tract/pathology ; Humans ; Parkinson Disease/etiology ; Parkinson Disease/metabolism
    Chemical Substances Fatty Acids, Volatile
    Language English
    Publishing date 2018-02-13
    Publishing country United States
    Document type Journal Article
    ZDB-ID 607633-6
    ISSN 1531-8257 ; 0885-3185
    ISSN (online) 1531-8257
    ISSN 0885-3185
    DOI 10.1002/mds.27304
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article: Sexual Dimorphism in the Gut Microbiome: Microgenderome or Microsexome?

    Mulak, Agata / Larauche, Muriel / Taché, Yvette

    Journal of neurogastroenterology and motility

    2022  Volume 28, Issue 2, Page(s) 332–333

    Language English
    Publishing date 2022-04-01
    Publishing country Korea (South)
    Document type Letter
    ZDB-ID 2573719-3
    ISSN 2093-0887 ; 2093-0879
    ISSN (online) 2093-0887
    ISSN 2093-0879
    DOI 10.5056/jnm21242
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article ; Online: Small intestinal bacterial overgrowth in Alzheimer's disease.

    Kowalski, Karol / Mulak, Agata

    Journal of neural transmission (Vienna, Austria : 1996)

    2021  Volume 129, Issue 1, Page(s) 75–83

    Abstract: The results of animal studies and clinical data support the gut microbiota contribution to the pathogenesis of Alzheimer's disease (AD). The aim of this pilot study was to evaluate the prevalence of small intestinal bacterial overgrowth (SIBO) and fecal ... ...

    Abstract The results of animal studies and clinical data support the gut microbiota contribution to the pathogenesis of Alzheimer's disease (AD). The aim of this pilot study was to evaluate the prevalence of small intestinal bacterial overgrowth (SIBO) and fecal markers of intestinal inflammation and permeability in AD patients. The study was conducted in 45 AD patients and 27 controls. Data on comorbidities, pharmacotherapy, and gastrointestinal symptoms were acquired from medical records and a questionnaire. SIBO was evaluated using lactulose hydrogen breath test. Fecal calprotectin and zonulin levels were assessed by ELISA assays. The positive result of SIBO breath test was found in 49% of the AD patients and 22% of the controls (p = 0.025). The comparative analysis between SIBO-positive and SIBO-negative AD patients with respect to the degree of cognitive impairment, comorbidities and used medications did not reveal any statistically significant difference, except for less common heartburn in SIBO-positive AD patients than in SIBO-negative ones (9 vs 35%, p = 0.038). The median fecal calprotectin and zonulin levels in the AD group compared to the control group amounted to 43.1 vs 64.2 µg/g (p = 0.846) and 73.5 vs 49.0 ng/ml (p = 0.177), respectively. In the AD patients there was no association between the presence of SIBO and fecal calprotectin level. Patients with AD are characterized by higher prevalence of SIBO not associated with increased fecal calprotectin level that may be related to anti-inflammatory effect of cholinergic drugs used in the treatment of AD.
    MeSH term(s) Alzheimer Disease/epidemiology ; Alzheimer Disease/pathology ; Humans ; Intestine, Small/microbiology ; Lactulose ; Leukocyte L1 Antigen Complex/analysis ; Pilot Projects
    Chemical Substances Leukocyte L1 Antigen Complex ; Lactulose (4618-18-2)
    Language English
    Publishing date 2021-11-19
    Publishing country Austria
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 184163-4
    ISSN 1435-1463 ; 0300-9564
    ISSN (online) 1435-1463
    ISSN 0300-9564
    DOI 10.1007/s00702-021-02440-x
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article ; Online: Intracerebroventricular administration of TRH Agonist, RX-77368 alleviates visceral pain induced by colorectal distension in rats.

    Larauche, Muriel / Kim, Yong Sung / Mulak, Agata / Duboc, Henri / Taché, Yvette

    Peptides

    2024  Volume 175, Page(s) 171181

    Abstract: Thyrotropin-releasing hormone (TRH) acts centrally to exert pleiotropic actions independently from its endocrine function, including antinociceptive effects against somatic pain in rodents. Whether exogenous or endogenous activation of TRH signaling in ... ...

    Abstract Thyrotropin-releasing hormone (TRH) acts centrally to exert pleiotropic actions independently from its endocrine function, including antinociceptive effects against somatic pain in rodents. Whether exogenous or endogenous activation of TRH signaling in the brain modulates visceral pain is unknown. Adult male Sprague-Dawley rats received an intracerebroventricular (ICV) injection of the stable TRH analog, RX-77368 (10, 30 and 100 ng/rat) or saline (5 µl) or were semi-restrained and exposed to cold (4°C) for 45 min. The visceromotor response (VMR) to graded phasic colorectal distensions (CRD) was monitored using non-invasive intracolonic pressure manometry. Naloxone (1 mg/kg) was injected subcutaneously 10 min before ICV RX-77368 or saline. Fecal pellet output was monitored for 1 h after ICV injection. RX-77368 ICV (10, 30 and 100 ng/rat) reduced significantly the VMR by 56.7%, 67.1% and 81.1% at 40 mmHg and by 30.3%, 58.9% and 87.4% at 60 mmHg respectively vs ICV saline. Naloxone reduced RX-77368 (30 and 100 ng, ICV) analgesic response by 51% and 28% at 40 mmHg and by 30% and 33% at 60 mmHg respectively, but had no effect per se. The visceral analgesia was mimicked by the acute exposure to cold. At the doses of 30 and 100 ng, ICV RX-77368 induced defecation within 30 min. These data established the antinociceptive action of RX-77368 injected ICV in a model of visceral pain induced by colonic distension through recruitment of both opioid and non-opioid dependent mechanisms.
    MeSH term(s) Rats ; Male ; Animals ; Rats, Sprague-Dawley ; Visceral Pain/drug therapy ; Thyrotropin-Releasing Hormone/analogs & derivatives ; Analgesics/pharmacology ; Naloxone/pharmacology ; Colorectal Neoplasms ; Pyrrolidonecarboxylic Acid/analogs & derivatives
    Chemical Substances L-pyroglutamyl-L-histidyl-3,3-dimethylprolinamide (76820-40-1) ; Thyrotropin-Releasing Hormone (5Y5F15120W) ; Analgesics ; Naloxone (36B82AMQ7N) ; Pyrrolidonecarboxylic Acid (SZB83O1W42)
    Language English
    Publishing date 2024-02-27
    Publishing country United States
    Document type Journal Article
    ZDB-ID 769028-9
    ISSN 1873-5169 ; 0196-9781
    ISSN (online) 1873-5169
    ISSN 0196-9781
    DOI 10.1016/j.peptides.2024.171181
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article: Is Fecal Calprotectin an Applicable Biomarker of Gut Immune System Activation in Chronic Inflammatory Demyelinating Polyneuropathy? - A Pilot Study.

    Koszewicz, Magdalena / Mulak, Agata / Dziadkowiak, Edyta / Budrewicz, Sławomir

    Frontiers in human neuroscience

    2021  Volume 15, Page(s) 733070

    Abstract: Introduction: ...

    Abstract Introduction:
    Language English
    Publishing date 2021-11-12
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2425477-0
    ISSN 1662-5161
    ISSN 1662-5161
    DOI 10.3389/fnhum.2021.733070
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top