Juris Pokrotnieks

Dr. Juris Pokrotnieks

orcid

Research Focus & Metrics

Academic Career Length

27Years (2000-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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6 August 2018 in Inflammatory Bowel Diseases
Verified
Journal Article
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SSStanislav Sitkin
Stanislav Sitkin
JPJuris Pokrotnieks
Juris Pokrotnieks
To the Editor:

1 September 2000 in Alimentary Pharmacology & Therapeutics
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Journal Article
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JPJuris Pokrotnieks
Juris Pokrotnieks
KMK Marlicz
K Marlicz
LPL Paradowski
L Paradowski
BMB Margus
B Margus
PZP Zaborowski
P Zaborowski
RGR Greinwald
R Greinwald
Background: Rectal formulations of mesalazine are the treatment of choice in mildly to moderately active ulcerative colitis. A new foam formulation of mesalazine was developed to improve both drug delivery and patient acceptance.Methods: In this multicentre, randomized, double‐blind, parallel‐group study, 111 patients with mildly to moderately active proctitis, proctosigmoiditis, or left‐sided ulcerative colitis received mesalazine foam enema or placebo enema (2 g mesalazine per day) for 6 weeks. Disease activity was monitored on the basis of the Clinical Activity Index, Endoscopic Index, Histological Index, and global efficacy assessment by the investigators. Safety assessments included the recording of adverse events, laboratory variables and vital signs.Results: Clinical remission was more frequent in the mesalazine group than the placebo group (65% vs. 40%; P=0.0082), particularly in patients with mild disease and patients with proctosigmoiditis. The frequency of patients with an endoscopic remission was higher in the mesalazine group (57%) than in the placebo group (37%). Similarly, 59% of patients receiving mesalazine but only 41% of those receiving placebo showed an improved Histological Index. The foam enemas were generally well‐tolerated, and no treatment‐related changes on laboratory variables and vital signs were noted.Conclusions: Mesalazine foam enema was well‐tolerated and was more effective than placebo in the treatment of patients with distal ulcerative colitis.

1 September 2014 in Journal of Crohn's and Colitis
Verified
Journal Article
Closed access
ADAxel Dignass
Axel Dignass
SSSimeon Stoynov
Simeon Stoynov
ADAndrey E. Dorofeyev
Andrey E. Dorofeyev
GGGalina A. Grigorieva
Galina A. Grigorieva
ETEva Tomsová
Eva Tomsová
OGon behalf of the International Budenofalk® Study Group
on behalf of the International Budenofalk® Study Group
Oral budesonide 9 mg/day represents first-line treatment of mild-to-moderately active ileocolonic Crohn's disease. However, there is no precise recommendation for budesonide dosing due to lack of comparative data. A once-daily (OD) 9 mg dose may improve adherence and thereby efficacy. An eight-week, double-blind, double-dummy randomised trial compared budesonide 9 mg OD versus 3mg three-times daily (TID) in patients with mild-to-moderately active ileocolonic Crohn's disease. Primary endpoint was clinical remission defined as CDAI <150 at week 8 (last observation carried forward). The final intent-to-treat population comprised 471 patients (238 [9 mg OD], 233 [3 mg TID]). The confirmatory population for the primary endpoint analysis was the interim per protocol population (n=377; 188 [9 mg OD], 189 [3mg TID]), in which the primary endpoint was statistically non-inferior with budesonide 9 mg OD versus 3 mg TID. Clinical remission was achieved in 71.3% versus 75.1%, a difference of -3.9% (95% CI [-14.6%; 6.4%]; p=0.020 for non-inferiority). The mean (SD) time to remission was 21.9 (13.8) days versus 21.4 (14.6) days with budesonide 9 mg OD versus 3 mg TID, respectively. In a subpopulation of 122 patients with baseline SES-CD ulcer score ≥1, complete mucosal healing occurred in 32.8% (21/64) on 9 mg OD and 41.4% (24/58) on 3mg TID; deep remission (mucosal healing and clinical remission) was observed in 26.6% (17/64) and 32.8% (19/58) of patients, respectively. Treatment-emergent suspected adverse drug reactions were reported in 4.6% of 9 mg OD and 4.7% of 3 mg TID patients. Budesonide at the recommended dose of 9 mg/day can be administered OD without impaired efficacy and safety compared to 3mg TID dosing in mild-to-moderately active Crohn's disease.

25 March 2025 in United European Gastroenterology Journal
Verified
Journal Article
Open access
MLMarco Vincenzo Lenti
Marco Vincenzo Lenti
HHHeinz Florian Hammer
Heinz Florian Hammer
ITIlja Tacheci
Ilja Tacheci
RBRosa Burgos
Rosa Burgos
Stéphane M. SchneiderStéphane M. Schneider
Stéphane M. Schneider
ASAntonio Di Sabatino
Antonio Di Sabatino
Malabsorption is a complex and multifaceted condition characterised by the defective passage of nutrients into the blood and lymphatic streams. Several congenital or acquired disorders may cause either selective or global malabsorption in both children and adults, such as cystic fibrosis, exocrine pancreatic insufficiency (EPI), coeliac disease (CD) and other enteropathies, lactase deficiency, small intestinal bacterial overgrowth (SIBO), autoimmune atrophic gastritis, Crohn's disease, and gastric or small bowel resections. Early recognition of malabsorption is key for tailoring a proper diagnostic work‐up for identifying the cause of malabsorption. A patient's medical and pharmacological history is essential for identifying risk factors. Several examinations such as endoscopy with small intestinal biopsies, non‐invasive functional tests and radiological imaging are useful in diagnosing malabsorption. Because of its high prevalence, CD should always be looked for in cases of malabsorption with no other obvious explanations and in high‐risk individuals. Nutritional support is key in the management of patients with malabsorption; different options are available, including oral supplements, enteral or parenteral nutrition. In patients with short bowel syndrome, teduglutide proved effective in reducing the need for parenteral nutrition, thus improving the quality of life of these patients. Primary care physicians play a central role in the early detection of malabsorption and should be involved in multidisciplinary teams for improving the overall management of these patients. In this European consensus, involving ten scientific societies and several experts, we have dissected all the issues around malabsorption, including the definitions and diagnostic testing (Part 1), high‐risk categories and special populations, nutritional assessment and management, and primary care perspective (Part 2).

15 March 2025 in United European Gastroenterology Journal
Verified
Journal Article
Open access
MLMarco Vincenzo Lenti
Marco Vincenzo Lenti
HHHeinz Florian Hammer
Heinz Florian Hammer
ITIlja Tacheci
Ilja Tacheci
RBRosa Burgos
Rosa Burgos
Stéphane M. SchneiderStéphane M. Schneider
Stéphane M. Schneider
ASAntonio Di Sabatino
Antonio Di Sabatino
Malabsorption is a complex and multifaceted condition characterised by the defective passage of nutrients into the blood and lymphatic streams. Several congenital or acquired disorders may cause either selective or global malabsorption in both children and adults, such as cystic fibrosis, exocrine pancreatic insufficiency (EPI), coeliac disease (CD) and other enteropathies, lactase deficiency, small intestinal bacterial overgrowth (SIBO), autoimmune atrophic gastritis, Crohn's disease, and gastric or small bowel resections. Early recognition of malabsorption is key for tailoring a proper diagnostic work‐up for identifying the cause of malabsorption. Patient's medical and pharmacological history are essential for identifying risk factors. Several examinations like endoscopy with small intestinal biopsies, non‐invasive functional tests, and radiologic imaging are useful in diagnosing malabsorption. Due to its high prevalence, CD should always be looked for in case of malabsorption with no other obvious explanations and in high‐risk individuals. Nutritional support is key in management of patients with malabsorption; different options are available, including oral supplements, enteral or parenteral nutrition. In patients with short bowel syndrome, teduglutide proved effective in reducing the need for parenteral nutrition, thus improving the quality of life of these patients. Primary care physicians have a central role in early detection of malabsorption and should be involved into multidisciplinary teams for improving the overall management of these patients. In this European consensus, involving 10 scientific societies and several experts, we have dissected all the issues around malabsorption, including the definitions and diagnostic testing (Part 1), high‐risk categories and special populations, nutritional assessment and management, and primary care perspective (Part 2).

22 November 2020 in Neurogastroenterology & Motility
Verified
Journal Article
Closed access
PDF file
SSStanislav Sitkin
Stanislav Sitkin
TVTimur Vakhitov
Timur Vakhitov
JPJuris Pokrotnieks
Juris Pokrotnieks