Oral candidiasis in denture wearers - Angiogenic activity of blood mononuclear leukocytes

Individual and combined effects of several isomers of retinoic acid (RA) and 1,25-dihydroxyvitamin D3 (1,25-(OH)2D3) on interferon-gamma (IFN-gamma) secretion by blood mononuclear leukocytes (MNL) from nulliparous and postparturient Holstein cattle were evaluated in vitro. In the first experiment, effects on incubation period (24 to 72 hours) and time of supplementation (0 to 32 hours) with all-trans, 9-cis, 13-cis-, and 9,13-dicis-RAs (0 to 100 nM) on IFN-gamma secretion by pokeweed mitogen (PWM)-stimulated (0 and 10 mug/ml) MNL from nulliparous cattle were evaluated. In the second experiment, MNL from postparturient cows (bled at 0, 2, 4, and 16 days postpartum) were stimulated with PWM (0 and 10 mug/ml) in the presence of RA isomers (9-cis- or 9,13-dicis-RA; 0 to 100 nM), 1,25-(OH)2D3 (0 to 100 nM), or with combinations of these metabolites. The results show that individual isomers of RA had no effect on IFN-gamma secretion by PWM-stimulated MNL from nulliparous or postparturient cows. Furthermore 1,25-dihydroxyvitamin D3 inhibited IFN-gamma secretion by MNL from nulliparous and postparturient dairy cows; however, the degree of inhibition was greater when 9-cis- and 9,13-dicis-RA were also present in the cultures. Finally mononuclear leukocytes from postparturient dairy cows produced substantially less IFN-gamma than did MNL from nulliparous cattle. It is concluded that retinoic acids individually did not affect the capacity of leukocytes from dairy cattle to secrete IFN-gamma. This result is in marked contrast to studies in monogastric species indicating that RAs inhibit IFN-gamma secretion by peripheral blood T cells. Inhibition of IFN-gamma secretion by 1,25-(OH)2D3 was potentiated by 9-cis- and 9,13-di-cis-retinoics acids, suggesting that an excess of dietary vitamins A and D may compromise further the naturally immunosuppressed postparturient dairy cow. Additional research is necessary to determine if the combined effects of these metabolites on IFN-gamma secretion represent an increased susceptibility of the dairy cow to infectious diseases during the periparturient period. Lower secretion of IFN-gamma by MNL from postpartutient dairy cows, relative to nulliparous cattle, suggests that recently-calved cows are naturally immunosuppressed.

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Leukocytes and Thrombosis

Thrombosis and Haemostasis ◽

10.1055/s-0038-1656285 ◽

1965 ◽

Vol 13 (01) ◽

pp. 035-046 ◽

Cited By ~ 27

Author(s):

R. L Henry

Keyword(s):

Tissue Culture ◽

White Blood Cells ◽

Polymorphonuclear Neutrophils ◽

Mononuclear Leukocytes ◽

Amoeboid Movement ◽

Proliferating Cells ◽

Cell Tissue ◽

Blood Clots ◽

Platelet Aggregates ◽

To Come

SummaryWhite blood cells can no longer be considered simple trapped inclusions within thrombi. Their numbers in thrombi relative to blood counts increase with time. They appear to come from the blood flowing past the thrombus. They appear to migrate by amoeboid movement into the thrombic mass. Polymorphonuclear neutrophils have been shown to be lytic to fibrin and other proteins and thus can contribute to thrombus dissolution. There is increasing evidence that neutrophils may impart important cytotrophic function to proliferating cells during thrombus organization. Eosinophils are known to carr profibrinolysin and will release this precursor at sites of fibrin deposition. Mononuclear leukocytes can transform into fibroblasts in tissue culture and I consider a thrombus an ideal tissue culture medium. All of these cells can contribute to thrombus dissolution simply by mechanical weakening of the mass by migration into it, releasing enzymes, and allowing blood flow to carry away pieces of the thrombus as emboli. I extend my perspective on thrombosis by considering these intravascular solids as cell tissue cultures rather than simple blood clots or platelet aggregates.

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Defective mineralocorticoid effector mechanism in mononuclear leukocytes of patients with primary and secondary aldosteronism

Acta Endocrinologica ◽

10.1530/acta.0.117s227 ◽

1988 ◽

Vol 117 (4_Suppl) ◽

pp. S227

Author(s):

M. WEHLING ◽

D. ARMANINI ◽

S. KUHLS

Keyword(s):

Mononuclear Leukocytes ◽

Effector Mechanism

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Opposite effects of insulin and catecholamines on LDL-receptor activity in human mononuclear leukocytes

Diabetes ◽

10.2337/diabetes.37.10.1386 ◽

1988 ◽

Vol 37 (10) ◽

pp. 1386-1391 ◽

Cited By ~ 12

Author(s):

W. Krone ◽

H. Naegele ◽

B. Behnke ◽

H. Greten

Keyword(s):

Ldl Receptor ◽

Receptor Activity ◽

Mononuclear Leukocytes ◽

Human Mononuclear Leukocytes

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Highly Potent rhenium(I) Tricarbonyl Complexes with Dual Anticancer and Anti-Angiogenic Activity Against Colorectal Carcinoma

10.26434/chemrxiv.12012840.v1 ◽

2020 ◽

Cited By ~ 1

Author(s):

Joachim Delasoie ◽

Aleksandar Pavic ◽

Noémie Voutier ◽

Sandra Vojnovic ◽

Aurélien Crochet ◽

...

Keyword(s):

Colorectal Carcinoma ◽

Anticancer Drugs ◽

Xenograft Model ◽

Therapeutic Window ◽

Low Doses ◽

Sunitinib Malate ◽

Angiogenic Activity ◽

Antimetastatic Activity ◽

Clinical Drugs

Synthesized and characterized a series of rhenium(I) trycarbonyl-based complexes with increased lipophilicity. Two of these novel compounds were discovered to possess remarkable anticancer, anti-angiogenic and antimetastatic activity in vivo (zebrafish-human CRC xenograft model), being effective at very low doses (1-3 µM). At doses as high as 250 µM the complexes did not provoke toxicity issues encountered in clinical anticancer drugs (cardio-, hepato-, and myelotoxicity). The two compounds exceed the antiproliferative and anti-angiogenic potency of clinical drugs cisplatin and sunitinib-malate, and display a large therapeutic window.

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A study of oral candidiasis and factors associated with it at tertiary health centre

Medpusle International Journal of Medicine ◽

10.26611/1021912 ◽

2019 ◽

Vol 9 (1) ◽

pp. 06-08

Author(s):

Rachana Abhijit Laul ◽

Keyword(s):

Oral Candidiasis ◽

Health Centre ◽

Factors Associated

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Efek Proteksi Ekstrak Etanol Stichopus hermanii Terhadap Jumlah Limfosit pada Tikus yang Terpapar Asap Rokok dan Diinduksi Candida albicans

DENTA ◽

10.30649/denta.v9i2.12 ◽

2015 ◽

Vol 9 (2) ◽

pp. 146

Author(s):

Auliasari Yunanda ◽

Syamsulina Revianti ◽

Isidora Karsini

Keyword(s):

Candida Albicans ◽

Oral Candidiasis ◽

Control Group ◽

Post Test

Latar Belakang: Merokok berhubungan dengan jamur rongga mulut yang dapat mengakibatkan oral candidiasis. Stichopus hermanii mengandung efek antioksidan, antifungi dan immunostimulator. Tujuan: Mengevaluasi efek proteksi ekstrak Stichopus hermanii terhadap jumlah limfosit pada tikus Wistar yang terpapar asap rokok dan diinduksi C.albicans. Bahan dan Metode: Rancangan penelitian ini adalah post test-only control group design. 42 ekor tikus Wistar jantan, dibagi menjadi 7 kelompok, Kelompok1 (saline 0,1mL, udara segar, CMC-Na 0,2%), Kelompok2 (saline 0,1mL, asap rokok, CMC-Na 0,2%), Kelompok3 (C.albicans 0,1mL, udara segar, CMC-Na 0,2%), Kelompok4 (C.albicans 0,1mL, asap rokok, CMC-Na 0,2%), Kelompok5 (saline 0,1mL, asap rokok, ekstrak Stichopus hermanii 0,02mg/kgBB), Kelompok6 (C.albicans 0,1mL, udara segar, ekstrak Stichopus hermanii 0,02mg/kgBB), Kelompok7 (C.albicans 0,1 mL, asap rokok, ekstrak Stichopus hermanii 0,02mg/kgBB). Tikus Wistar diinduksi C.albicans 1 minggu, terpapar asap rokok 8 minggu, dan diberi ekstrak Stichopus hermanii 8 minggu. Selanjutnya, tikus Wistar dikorbankan setelah 2 bulan perlakuan. Jumlah limfosit dihitung melalui metode hapusan darah dengan different counting dibawah mikroskop cahaya dengan pembesaran 1000x. Data yang diperoleh dianalisis menggunakan uji Kruskal-Wallis dan Mann-Whitney. Hasil: Kelompok yang terpapar asap rokok dan diinduksi C.albicans memiliki dapat menurunkan jumlah limfosit, kelompok suplementasi menggunakan ekstrak ethanol Stichopus hermanii dapat meningkatkan jumlah limfosit. Simpulan: Suplementasi ekstrak Stichopus hermanii memiliki efek protektif untuk memicu proliferasi limfosit pada tikus Wistar setelah paparan asap rokok dan induksi C.albicans.

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