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  1. Article ; Online: Diagnostic and therapeutic use of oral micronized progesterone in endocrinology.

    Memi, Eleni / Pavli, Polina / Papagianni, Maria / Vrachnis, Nikolaos / Mastorakos, George

    Reviews in endocrine & metabolic disorders

    2024  

    Abstract: Progesterone is a natural steroid hormone, while progestins are synthetic molecules. In the female reproductive system, progesterone contributes to the control of luteinizing hormone and follicle-stimulating hormone secretion and their pulsatility, via ... ...

    Abstract Progesterone is a natural steroid hormone, while progestins are synthetic molecules. In the female reproductive system, progesterone contributes to the control of luteinizing hormone and follicle-stimulating hormone secretion and their pulsatility, via its receptors on the kisspeptin, neurokinin B, and dynorphin neurons in the hypothalamus. Progesterone together with estradiol controls the cyclic changes of proliferation and decidualization of the endometrium; exerts anti-mitogenic actions on endometrial epithelial cells; regulates normal menstrual bleeding; contributes to fertilization and pregnancy maintenance; participates in the onset of labor. In addition, it exerts numerous effects on other endocrine systems. Micronized progesterone (MP) is natural progesterone with increased bioavailability, due to its pharmacotechnical micronized structure, which makes it an attractive diagnostic and therapeutic tool. This critical literature review aims to summarize and put forward the potential diagnostic and therapeutic uses of MP in the field of endocrinology. During reproductive life, MP is used for diagnostic purposes in the evaluation of primary or secondary amenorrhea as a challenge test. Moreover, it can be prescribed to women presenting with amenorrhea or oligomenorrhea for induction of withdrawal bleeding, in order to time blood-sampling for diagnostic purposes in early follicular phase. Therapeutically, MP, alone or combined with estrogens, is a useful tool in various endocrine disorders including primary amenorrhea, abnormal uterine bleeding due to disordered ovulation, luteal phase deficiency, premenstrual syndrome, polycystic ovary syndrome, secondary amenorrhea [functional hypothalamic amenorrhea, premature ovarian insufficiency], perimenopause and menopause. When administrated per os, acting as a neurosteroid directly or through its metabolites, it exerts beneficial effects on brain function such as alleviation of symptoms of anxiety and depression, asw well as of sleep problems, while it improves working memory in peri- and menopausal women. Micronized progesterone preserves full potential of progesterone activity, without presenting many of the side-effects of progestins. Although it has been associated with more frequent drowsiness and dizziness, it can be well tolerated with nocturnal administration. Because of its better safety profile, especially with regard to metabolic ailments, breast cancer risk and veno-thromboembolism risk, MP is the preferred option for individuals with an increased risk of cardiovascular and metabolic diseases and of all-cause mortality.
    Language English
    Publishing date 2024-04-23
    Publishing country Germany
    Document type Journal Article ; Review
    ZDB-ID 2185718-0
    ISSN 1573-2606 ; 1389-9155
    ISSN (online) 1573-2606
    ISSN 1389-9155
    DOI 10.1007/s11154-024-09882-0
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Non-alcoholic fatty liver disease: an emerging predictor of stroke risk, severity and outcome.

    Papagianni, M / Tziomalos, K

    European journal of neurology

    2018  Volume 25, Issue 4, Page(s) 610–611

    MeSH term(s) Brain Stem Infarctions ; Disease Progression ; Humans ; Non-alcoholic Fatty Liver Disease ; Risk Factors ; Stroke
    Language English
    Publishing date 2018-02-26
    Publishing country England
    Document type Editorial ; Comment
    ZDB-ID 1280785-0
    ISSN 1468-1331 ; 1351-5101 ; 1471-0552
    ISSN (online) 1468-1331
    ISSN 1351-5101 ; 1471-0552
    DOI 10.1111/ene.13584
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Cardiovascular effects of dipeptidyl peptidase-4 inhibitors.

    Papagianni, M / Tziomalos, K

    Hippokratia

    2016  Volume 19, Issue 3, Page(s) 195–199

    Abstract: Dipeptidyl peptidase-4 (DPP-4) inhibitors are effective glucose-lowering agents that do not increase body weight and are associated with a low risk for hypoglycemia. Also, they appear to exert beneficial effects on other established cardiovascular risk ... ...

    Abstract Dipeptidyl peptidase-4 (DPP-4) inhibitors are effective glucose-lowering agents that do not increase body weight and are associated with a low risk for hypoglycemia. Also, they appear to exert beneficial effects on other established cardiovascular risk factors, including dyslipidemia and hypertension. Moreover, DPP-4 inhibitors exert antiinflammatory and antioxidant actions, improve endothelial function and reduce urinary albumin excretion. In contrast to these favorable cardiovascular effects, three recent large, randomized, placebo-controlled trials in patients with type 2 diabetes mellitus (T2DM) and established cardiovascular disease or multiple cardiovascular risk factors showed that DPP-4 inhibitors do not affect the risk of myocardial infarction or ischemic stroke and might increase the risk of heart failure. The findings of the former randomized studies highlight the limitations of surrogate markers and show that beneficial effects on cardiovascular risk factors do not necessarily translate into reductions in hard clinical endpoints. Ongoing trials will shed more light on the safety profile of DPP-4 inhibitors and will clarify whether they will improve the cardiovascular outcomes of patients with T2DM. Hippokratia 2015; 19 (3): 195-199.
    Language English
    Publishing date 2016-04-01
    Publishing country Greece
    Document type Journal Article
    ZDB-ID 2491943-3
    ISSN 1790-8019 ; 1108-4189
    ISSN (online) 1790-8019
    ISSN 1108-4189
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: An evaluation of the proteolytic and lipolytic potential of Penicillium spp. isolated from traditional Greek sausages in submerged fermentation.

    Papagianni, Maria

    Applied biochemistry and biotechnology

    2014  Volume 172, Issue 2, Page(s) 767–775

    Abstract: A number of novel Penicillium strains belonging to Penicillium nalgiovense, Penicillium solitum, Penicillium commune, Penicillium olsonii, and Penicillium oxalicum species, isolated from the surface of traditional Greek sausages, were evaluated for their ...

    Abstract A number of novel Penicillium strains belonging to Penicillium nalgiovense, Penicillium solitum, Penicillium commune, Penicillium olsonii, and Penicillium oxalicum species, isolated from the surface of traditional Greek sausages, were evaluated for their proteolytic and lipolytic potential in a solid substrate first and next in submerged fermentations, using complex media. Extracellular proteolytic activity was assessed at acid, neutral, and alkaline pH, while the lipolytic activity was assessed using olive oil, the short-chain triacylglycerol tributyrin, and the long-chain triolein, as substrates. The study revealed that although closely related, the tested strains produce enzymes of distinct specificities. P. nalgiovense PNA9 produced the highest alkaline proteolytic activity (13.2 unit (U)/ml) and the highest lipolytic activity with tributyrin (92 U/ml). Comparisons with known sources show that proteases and/or lipases can be secreted effectively by some Penicillia (P. nalgiovense PNA4, PNA7, and PNA9 and P. solitum PSO1), and further investigations on their properties and characteristics would be promising.
    MeSH term(s) Culture Media/pharmacology ; Extracellular Space/drug effects ; Extracellular Space/enzymology ; Fermentation/drug effects ; Greece ; Lipase/metabolism ; Lipolysis/drug effects ; Meat Products/microbiology ; Penicillium/drug effects ; Penicillium/enzymology ; Penicillium/growth & development ; Penicillium/isolation & purification ; Peptide Hydrolases/metabolism ; Proteolysis/drug effects ; Time Factors
    Chemical Substances Culture Media ; Lipase (EC 3.1.1.3) ; Peptide Hydrolases (EC 3.4.-)
    Language English
    Publishing date 2014-01
    Publishing country United States
    Document type Journal Article
    ZDB-ID 392344-7
    ISSN 1559-0291 ; 0273-2289
    ISSN (online) 1559-0291
    ISSN 0273-2289
    DOI 10.1007/s12010-013-0570-y
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Effects of a Diabetes Sports Summer Camp on the Levels of Physical Activity and Dimensions of Health-Related Quality of Life in Young Patients with Diabetes Mellitus Type 1: A Randomized Controlled Trial.

    Skoufa, Lida / Makri, Eleni / Barkoukis, Vassilis / Papagianni, Maria / Triantafyllou, Panagiota / Kouidi, Evangelia

    Children (Basel, Switzerland)

    2023  Volume 10, Issue 3

    Abstract: Physical activity (PA) is considered an important part of the treatment of children with diabetes mellitus type 1 (T1DM). Furthermore, health-related quality of life (HRQoL) affects both the physical and mental health of patients with T1DM. The purpose ... ...

    Abstract Physical activity (PA) is considered an important part of the treatment of children with diabetes mellitus type 1 (T1DM). Furthermore, health-related quality of life (HRQoL) affects both the physical and mental health of patients with T1DM. The purpose of the study was to evaluate through a randomized controlled trial the impact of participation in a summer diabetes sports camp on the PA and HRQoL of children and adolescents with T1DM. Eighty-four children and adolescents with T1DM were randomly assigned into an intervention (M = 12.64, SD = 1.82, 30 female) and a control group (M = 12.67, SD = 2.50, 30 female). Intervention group participants attended a ten-day summer diabetes sports camp which included an intensive program of PA (6 h of daily PA), educational and entertaining activities as well as education on the importance of PA in the management of the disease. At baseline and at the end of the study, participants completed measures of physical activity, self-esteem, depression, health status, intention to change behavior, and life satisfaction. Results of the two-way repeated measures analysis showed no statistically significant group differences in PA levels (
    Language English
    Publishing date 2023-02-26
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2732685-8
    ISSN 2227-9067
    ISSN 2227-9067
    DOI 10.3390/children10030456
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Environmental factors affecting pregnancy outcomes.

    Sakali, Anastasia-Konstantina / Papagianni, Maria / Bargiota, Alexandra / Rasic-Markovic, Aleksandra / Macut, Djuro / Mastorakos, George

    Endocrine

    2023  Volume 80, Issue 3, Page(s) 459–469

    Abstract: Introduction: Pregnancy represents a fragile period in the life of a woman, vulnerable to hazardous environmental substances which might affect maternal and fetal metabolism. The possible influence of environmental factors, including endocrine ... ...

    Abstract Introduction: Pregnancy represents a fragile period in the life of a woman, vulnerable to hazardous environmental substances which might affect maternal and fetal metabolism. The possible influence of environmental factors, including endocrine disrupting chemicals (EDCs), upon the mother and the fetus before and/or during pregnancy might be associated directly and/or indirectly to deleterious pregnancy outcomes. Because the existence of such associations would be, to our view, of major importance to the scientific community, their investigation is the scope of this critical review.
    Methods: This critical review includes in vivo animal and human studies regarding the role of environmental factors, including EDCs, on pregnancy outcomes complying with the SANRA (a scale for the quality assessment of narrative review articles) questions for narrative reviews. Studies were identified by searching the MEDLINE (PubMed and PubMed Central), the Cochrane library and the Google Scholar databases till October 2022 with the combinations of the appropriate key words (detailed environmental factors including EDCs AND detailed negative pregnancy outcomes) as well as by scanning references from already included articles and relevant reviews manually. Because environmental factors and EDCs have been associated to epigenetic alterations, special care has been given to EDC-induced transgenerational effects on pregnancy outcomes.
    Results: The existing evidence suggests positive associations between specific environmental factors and negative pregnancy outcomes such as ectopic pregnancies, pregnancy losses, gestational diabetes, hypertensive disorders of pregnancy, preterm births, birth defects, intrauterine growth restriction, and small or large for gestational age babies.
    Conclusion: Environmental factors and EDCs may have a catalytic effect on the course and the outcomes of pregnancy.
    MeSH term(s) Pregnancy ; Infant, Newborn ; Female ; Animals ; Humans ; Pregnancy Outcome ; Premature Birth ; Gestational Age ; Endocrine Disruptors/toxicity
    Chemical Substances Endocrine Disruptors
    Language English
    Publishing date 2023-02-02
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 1194484-5
    ISSN 1559-0100 ; 1355-008X ; 0969-711X
    ISSN (online) 1559-0100
    ISSN 1355-008X ; 0969-711X
    DOI 10.1007/s12020-023-03307-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Purification and biochemical characterization of a novel alkaline protease produced by Penicillium nalgiovense.

    Papagianni, M / Sergelidis, D

    Applied biochemistry and biotechnology

    2014  Volume 172, Issue 8, Page(s) 3926–3938

    Abstract: Penicillium nalgiovense PNA9 produces an extracellular protease during fermentation with characteristics of growth-associated product. Enzyme purification involved ammonium sulfate precipitation, dialysis, and ultrafiltration, resulting in 12.1-fold ... ...

    Abstract Penicillium nalgiovense PNA9 produces an extracellular protease during fermentation with characteristics of growth-associated product. Enzyme purification involved ammonium sulfate precipitation, dialysis, and ultrafiltration, resulting in 12.1-fold increase of specific activity (19.5 U/mg). The protein was isolated through a series of BN-PAGE and native PAGE runs. ESI-MS analysis confirmed the molecular mass of 45.2 kDa. N-Terminal sequencing (MGFLKLLKGSLATLAVVNAGKLLTANDGDE) revealed 93 % similarity to a Penicillium chrysogenum protease, identified as major allergen. The protease exhibits simple Michaelis-Menten kinetics and K m (1.152 mg/ml), V max (0.827 mg/ml/min), and k cat (3.2 × 10(2)) (1/s) values against azocasein show that it possesses high substrate affinity and catalytic efficiency. The protease is active within 10-45 °C, pH 4.0-10.0, and 0-3 M NaCl, while maximum activity was observed at 35 °C, pH 8.0, and 0.25 M NaCl. It is active against the muscle proteins actin and myosin and inactive against myoglobin. It is highly stable in the presence of non-ionic surfactants, hydrogen peroxide, BTNB, and EDTA. Activity was inhibited by SDS, Mn(2+) and Zn(2+), and by the serine protease inhibitor PMSF, indicating the serine protease nature of the enzyme. These properties make the novel protease a suitable candidate enzyme in meat ripening and other biotechnological applications.
    MeSH term(s) Bacterial Proteins/antagonists & inhibitors ; Bacterial Proteins/biosynthesis ; Bacterial Proteins/isolation & purification ; Bacterial Proteins/metabolism ; Dose-Response Relationship, Drug ; Elastin/metabolism ; Endopeptidases/biosynthesis ; Endopeptidases/isolation & purification ; Endopeptidases/metabolism ; Fermentation ; Hydrogen-Ion Concentration ; Kinetics ; Metals/pharmacology ; Molecular Weight ; Myoglobin/metabolism ; Myosins/metabolism ; Penicillium/metabolism ; Protease Inhibitors/pharmacology ; Proteolysis ; Sequence Analysis ; Sodium Chloride/pharmacology ; Surface-Active Agents/pharmacology ; Temperature
    Chemical Substances Bacterial Proteins ; Metals ; Myoglobin ; Protease Inhibitors ; Surface-Active Agents ; Sodium Chloride (451W47IQ8X) ; Elastin (9007-58-3) ; Endopeptidases (EC 3.4.-) ; alkaline protease (EC 3.4.99.-) ; Myosins (EC 3.6.4.1)
    Language English
    Publishing date 2014-04
    Publishing country United States
    Document type Journal Article
    ZDB-ID 392344-7
    ISSN 1559-0291 ; 0273-2289
    ISSN (online) 1559-0291
    ISSN 0273-2289
    DOI 10.1007/s12010-014-0824-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Recent advances in engineering the central carbon metabolism of industrially important bacteria.

    Papagianni, Maria

    Microbial cell factories

    2012  Volume 11, Page(s) 50

    Abstract: This paper gives an overview of the recent advances in engineering the central carbon metabolism of the industrially important bacteria Escherichia coli, Bacillus subtilis, Corynobacterium glutamicum, Streptomyces spp., Lactococcus lactis and other ... ...

    Abstract This paper gives an overview of the recent advances in engineering the central carbon metabolism of the industrially important bacteria Escherichia coli, Bacillus subtilis, Corynobacterium glutamicum, Streptomyces spp., Lactococcus lactis and other lactic acid bacteria. All of them are established producers of important classes of products, e.g. proteins, amino acids, organic acids, antibiotics, high-value metabolites for the food industry and also, promising producers of a large number of industrially or therapeutically important chemicals. Optimization of existing or introduction of new cellular processes in these microorganisms is often achieved through manipulation of targets that reside at major points of central metabolic pathways, such as glycolysis, gluconeogenesis, the pentose phosphate pathway and the tricarboxylic acid cycle with the glyoxylate shunt. Based on the huge progress made in recent years in biochemical, genetic and regulatory studies, new fascinating engineering approaches aim at ensuring an optimal carbon and energy flow within central metabolism in order to achieve optimized metabolite production.
    MeSH term(s) Bacteria/metabolism ; Bacterial Proteins/genetics ; Bacterial Proteins/metabolism ; Carbon/metabolism ; Escherichia coli/metabolism ; Genetic Engineering/trends ; Gluconeogenesis ; Lactobacillaceae/metabolism ; Lactococcus lactis/metabolism ; Metabolic Networks and Pathways ; Pentose Phosphate Pathway
    Chemical Substances Bacterial Proteins ; Carbon (7440-44-0)
    Language English
    Publishing date 2012-04-30
    Publishing country England
    Document type Journal Article ; Review
    ISSN 1475-2859
    ISSN (online) 1475-2859
    DOI 10.1186/1475-2859-11-50
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: Metabolic engineering of lactic acid bacteria for the production of industrially important compounds.

    Papagianni, Maria

    Computational and structural biotechnology journal

    2012  Volume 3, Page(s) e201210003

    Abstract: Lactic acid bacteria (LAB) are receiving increased attention for use as cell factories for the production of metabolites with wide use by the food and pharmaceutical industries. The availability of efficient tools for genetic modification of LAB during ... ...

    Abstract Lactic acid bacteria (LAB) are receiving increased attention for use as cell factories for the production of metabolites with wide use by the food and pharmaceutical industries. The availability of efficient tools for genetic modification of LAB during the past decade permitted the application of metabolic engineering strategies at the levels of both the primary and the more complex secondary metabolism. The recent developments in the area with a focus on the production of industrially important metabolites will be discussed in this review.
    Language English
    Publishing date 2012-10-29
    Publishing country Netherlands
    Document type Journal Article ; Review
    ZDB-ID 2694435-2
    ISSN 2001-0370
    ISSN 2001-0370
    DOI 10.5936/csbj.201210003
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Effects of dissolved oxygen and pH levels on weissellin A production by Weissella paramesenteroides DX in fermentation.

    Papagianni, Maria

    Bioprocess and biosystems engineering

    2012  Volume 35, Issue 6, Page(s) 1035–1041

    Abstract: Experiments carried out with the dissolved oxygen tension (DOT) maintained during fermentation at 0, 10, 50, 70 and 100% showed a direct effect of the dissolved oxygen levels on weissellin A production with no correlative increase on biomass. An estimate ...

    Abstract Experiments carried out with the dissolved oxygen tension (DOT) maintained during fermentation at 0, 10, 50, 70 and 100% showed a direct effect of the dissolved oxygen levels on weissellin A production with no correlative increase on biomass. An estimate of the yield of weissellin A per gram biomass revealed the 50% DOT level as the optimum for increased yields. The effect of pH was studied in experiments carried out without pH control, with pH initially set at 6.0, 5.0 and 4.5 and with pH controlled at 6.0, 5.0 and 4.5. The initial pH value and the pH-drop gradient appear to be the important parameters for weissellin A production. Production was significantly higher with the uncontrolled initial pH compared to that of the controlled initial pH at 6.0, while acidic initial pHs created unfavorable conditions for production. Maintaining a constant pH environment during fermentation led to decreased production levels.
    MeSH term(s) Bacteriocins/biosynthesis ; Bacteriocins/chemistry ; Biomass ; Hydrogen-Ion Concentration ; Oxygen/metabolism ; Weissella/growth & development ; Weissella/metabolism
    Chemical Substances Bacteriocins ; Oxygen (S88TT14065)
    Language English
    Publishing date 2012-08
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1476357-6
    ISSN 1615-7605 ; 1432-0797 ; 1615-7591
    ISSN (online) 1615-7605 ; 1432-0797
    ISSN 1615-7591
    DOI 10.1007/s00449-012-0689-1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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