Search results for "CLO"
showing 10 items of 9986 documents
Chemoselective, Substrate-directed Fluorination of Functionalized Cyclopentane β-Amino Acids
2016
This work describes a substrate-directed fluorination of some highly functionalized cyclopentane derivatives. The cyclic products incorporating CH2 F or CHF2 moieties in their structure have been synthesized from diexo- or diendo-norbornene β-amino acids following a stereocontrolled strategy. The synthetic study was based on an oxidative transformation of the ring carbon-carbon double bond of the norbornene β-amino acids, followed by transformation of the resulted "all cis" and "trans" diformyl intermediates by fluorination with "chemodifferentiation".
Monoklonālās antivielas - mūsdienu ārstēšanas iespējas
2018
Biozāles ir viens no straujāk augošajiem farmaceitiskās rūpniecības segmentiem veselības aprūpē. Rekombinantās DNS tehnoloģijas un hibridomu tehnoloģijas progress, ir izraisījis liela mēroga proteīnu ražošanu, kuriem ir potenciāli terapeitiski pielietojumi. Kopš 1975. gada, kad pirmo reizi ziņots par monoklonālo antivielu (moAv) attīstību, pagājuši vairāk kā 40 gadi un apmēram 100 terapeitiskās moAv ir apstiprinātas kā zāles, kuras galvenokārt pielieto onkoloģisku un autoimūnu slimību terapijā. Šī pētījuma mērķis bija apzināt ārstu zināšanas par moAv un, noskaidrot ārstu pieredzi un iespējas moAv terapijas pielietošanai Latvijā. Tika veikta aptauja, kurā piedalījās 67 respondenti. Pēc aptau…
Theatrum niezwykłości w "Kronice wszytkiego świata" Marcina Bielskiego
2016
Praca dotyczy fenomenu niezwykłości w dawnych wiekach. Przedmiotem analizy stała się XVl-wieczna Kronika wszystkiego świata Marcina Bielskiego, która obfituje w bogaty materiał najrozmaitszych dziwów i cudowności. Struktura Kroniki Bielskiego współtworzy rodzaj theatrum, tj. kręgu wiedzy (gr. enkyklios paideia), gdzie realnie istniejące uporządkowane w przestrzeni rzeczy zostały nic tylko zinterpretowane i sklasyfikowane, ale też podporządkowane kategoriom zarówno systemu moralnego, jak i teologicznego. Wyłania się więc z encyklopedycznego dzieła Bielskiego świat pełen ładu, harmonii oraz sensu, taki, w którym swoje miejsce i znaczenie zyskuje każda nawet najbardziej nietypowa i dziwaczna r…
Quelques observations récentes sur des sites de l'Antiquité tardive à Autun (2001-2008)
2011
This article describes the result of ten or so fairly limited preventive archaeology operations (surveillance of works, diagnostics not followed up with excavations) carried out over the last ten years that have nonetheless finalised knowledge of several deposits from Late Antiquity in Autun located intra muros but also outside the walls. The works have enabled us to renew our knowledge of the reduced enclosure and of three Late Antiquity necropolises, to discover the remains of a lime kiln from the end of the 4th century at the centre of a public zone (perhaps the forum), and lastly to point up the difficulties of interpretation of an occupation of two zones from the end of the 4th century…
Comparison of the acute effects of anti-TNF-alpha drugs on a uveitis experimental model.
2010
To compare histopathological and biochemical effects of the anti-TNF-alpha drugs adalimumab and infliximab in a uveitis experimental model.Histopathological evaluation was performed 24 h after endotoxin (200 microg into the footpad) and drug administration, as well as biochemical analysis of oxidative stress-related markers in the aqueous humor.Severe inflammation was found in rat anterior chamber of the eye 24 h after endotoxin. Only infliximab administration partially prevented the endotoxin-induced disruption of the blood-aqueous barrier, as well as the increase in Rantes and MCP-1 concentration in aqueous humor. Both drugs ameliorated the histopathological score after endotoxin. Biochem…
Adalimumab in active ulcerative colitis: A “real-life” observational study
2013
Abstract Background and aims The effectiveness of adalimumab in the treatment of ulcerative colitis is under debate. Although controlled trials have shown that adalimumab is significantly better than placebo, the absolute clinical benefit is modest. We report data on the effectiveness of adalimumab in a cohort of ulcerative colitis patients treated in 22 Italian centres. Methods All patients with active disease treated with adalimumab were retrospectively reviewed. Co-primary endpoints were clinical remission at weeks 4, 12, 24 and 54. Secondary endpoints were sustained clinical remission, steroid discontinuation, endoscopic remission and need for colectomy. Results Eighty-eight patients we…
HLA-B27-restricted CD8 T cells derived from synovial fluids of patients with reactive arthritis and ankylosing spondylitis.
1993
Ankylosing spondylitis and seronegative spondylarthropathies such as Reiter's syndrome and reactive arthritis are strongly associated with HLA-B27. However, the mechanisms by which HLA-B27 is involved in disease susceptibility and pathogenesis are unknown. If the disease association is a consequence of HLA-B27's physiological function in antigen presentation, the disease should be mediated by cytotoxic T lymphocytes (CTLs) that recognise bacterial or self peptides presented by HLA-B27. Proof of this arthritogenic peptide model requires isolation of B27-restricted CD8 T cells from arthritic joints of patients with spondylarthropathies. An important question is whether "arthritogenic" bacteri…
Clonal heterogeneity of the growth and invasive response of a human breast carcinoma cell line to parathyroid hormone-related peptide fragments
1997
It has been previously reported that 8701-BC cells, derived from a primary carcinoma of the breast, constitutively express parathyroid hormone (PTH)-related peptide (PTHrP) and PTH/PTHrP receptor (PTH/PTHrP-R) genes, that N-terminal, mid-regional and C-terminal immunoreactive PTHrP can be found in cell conditioned medium and, furthermore, that exogenously added PTHrP (1-34), (67-86) and, to a minor extent, (107-139) are anti-mitogenic but promote Matrigel invasion by this cell line. It has also been reported that PTHrP gene expression is selectively switched on in those 8701-BC clonal lines endowed with a higher proliferation rate and invasive ability in vitro. Here we have first examined t…
Deficiency of Nrf2 accelerates the effector phase of arthritis and aggravates joint disease
2011
14 páginas, 8 figuras, 1 tabla.-- et al.
COX-2 expression in chondrosarcoma: A role for celecoxib treatment?
2010
Chondrosarcomas are resistant to conventional chemo- and radiotherapy. A subset of chondrosarcomas arises secondarily in the benign tumour syndromes enchondromatosis (EC) and multiple osteochondromas (MO), and prevention of tumour development would greatly improve prognosis. We therefore investigated the effect of selective COX-2 inhibition on chondrosarcoma growth. COX-2 expression was studied in central- and peripheral cartilaginous tumours. The effect of COX-2 inhibition was assessed in four high-grade chondrosarcoma cell lines using celecoxib and NS-398 treatment. COX-2 activity (prostaglandin E-2 (PGE(2)) ELISA) and cell viability were measured. The (prophylactic) effect of celecoxib o…