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THU0360 EFFICACY OF A SELF-TREATMENT PROTOCOL FOR FACE AND TEMPOROMANDIBULAR JOINTS REHABILITATION IN SYSTEMIC SCLEROSIS (SSC). Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.3451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background:In SSc, skin involvement of the face is frequent and extremely disabling, resulting in limited mouth opening, an altered dentition, difficulty in teeth care, as well as having a strong impact on the emotional and psychological well-being, thus impairing quality of life.Objectives:to evaluate the efficacy of a self-treatment protocol (created by AMURR A Multidisciplinary Association of Rheumatological Rehabilitation) for face and tempomandibular joints (TMJs) rehabilitation with two devices used in the dental field.Methods:40 SSc patients (37 female and 3 male) with a mouth opening ≤ 40 mm, were recruited and randomized in two groups of treatment: Group 1 (20 patients: mean age 50,650 yrs ± 13,937 SD, mean disease duraton 10,45 yrs ± 7,877 SD, opening mouth 32,250 mm ± 5,590 SD) treated with a home self-treatment protocol consisting of 23 exercises carried out at home in front of a mirror, 22/23 exercises were performed once a day, one of these using a device to obtain uniform stretching of the buccal rhyme, another one usingused three times a day to reduce tension of muscles of the TMJs, facilitating the mouth opening; group 2 (20 patients: mean age 58,05 yrs ± 18,103 SD, mean disease duration 17,4 yrs ± 15,017 SD, opening mouth 34,950 mm ± 5,753) without physical rehabilitation, only drugs as treatments of SSc and its complications. All patients underwent a baseline (T0) and 45 days (T1) clinimetric assessment by self-assessment of quality of life with SF-36 (Short-Form 36 Health Survey), of the degree of disability of the mouth with MHISS (of the Mouth Handicap in Systemic Sclerosis scale), Muscle pain evaluated by numerical rating scale (NRS) of the temporomandibular joint with TMD (Temporo mandibular Disorders), evaluation of mouth opening and ROM of the cervical spine. Statistical analysis was performed using the t-test or the Mann-Whitney test for assessing changes in all measurement scales between treatment groups.Results:The protocol of home physiotherapy exercises resulted in a statistically significant improvement in the treated group compared to group 2 both for mouth opening (T0: 32,250 ± 5,590, T1: 35,650 ± 6,046) vs (T0: 34,950 ± 5,753 T1: 34,300 ± 6,001) (p<0.001), cervical flexion (T0: 2,950 ± 1,939 T1: 1.700 ± 1,525) vs (T0: 4,450 ± 2,282 T1:4,075 ± 2,238) (p<0.01), cervical extension (T0: 17,025 ± 1,895 T1: 17,625 ± 1,605) vs (T0: 17,050 ± 2,089 T1: 16,525 ± 3,110) (p<0.05), cervical right lateral flexion (T0: 14,075 ± 2,386 T1:13,400 ± 2,431) vs (T0: 14,200 ± 1,765 T1: 14,425 ± 1,742) (p<0.01), cervical right rotation (T0: 14,200 ± 3,416 T1:13,750 ± 3,206) vs (T0: 14,900 ± 1,683 T1: 15,550 ± 2,188) (p<0.01), cervical left rotation (T0: 14,725 ±3,640 T1:14,450 ± 3,710) vs (T0: 15,900 ± 2,614 T1: 16,450 ± 2,964) (p<0.05), mouth disability at MHISS (T0: 19,100 ± 10,356 T1: 16,000 ± 9,989) vs (T0: 20,950 ± 9,950, T1: 21,100 ± 10,775) (p<0.01).Conclusion:The use of the home exercises protocol associated with the two devices has shown a significant improvement of the disability linked to skin involvement of the face. This highlights the fundamental role that home rehabilitation self therapy has in practice. These data will need to be confirmed in a larger cohort of patientsDisclosure of Interests:Mauro Passalacqua: None declared, Cristian Foggi: None declared, Nicola Mauro: None declared, Lorenzo Tofani: None declared, Serena Guiducci: None declared, Cosimo Bruni Speakers bureau: Actelion, Eli Lilly, Gemma Lepri: None declared, Jelena Blagojevic: None declared, Khadija El Aoufy: None declared, Ginevra Fiori: None declared, Francesca Bartoli: None declared, Susanna Maddali Bongi: None declared, Marco Mitola: None declared, Marco Gizduloch: None declared, Marco Matucci-Cerinic Grant/research support from: Actelion, MSD, Bristol-Myers Squibb, Speakers bureau: Acetelion, Lilly, Boehringer Ingelheim, Silvia Bellando Randone: None declared
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Comparison of nitrergic signaling in circular and longitudinal smooth muscle of murine ileum. Neurogastroenterol Motil 2018; 30. [PMID: 28782271 DOI: 10.1111/nmo.13175] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Accepted: 07/05/2017] [Indexed: 02/08/2023]
Abstract
BACKGROUND Gastrointestinal (GI) motility originates from coordinated movements of circular (CM) and longitudinal (LM) smooth muscle. How the two muscle layers react individually to nitrergic input and how they integrate nitrergic signaling is not thoroughly understood. METHODS We used immunohistochemistry to unveil expression of NO-sensitive guanylyl cyclase (NO-GC) in the ileum. For functional analyses, we measured tone of ileal CM and spontaneous contractions in both ileal muscle layers from mice lacking NO-GC globally (GCKO) and specifically in smooth muscle cells (SMC-GCKO). KEY RESULTS In contrast to other parts of the GI tract, NO-GC was not expressed in ckit-positive cells in ileum. NO-GC expression was intense in platelet-derived growth factor receptor α-positive cells and in yet unidentified cells of myenteric plexus and serosa. Both CM and LM developed spontaneous contractile activity; frequency and duration of their spontaneous contractions were identical. The amplitude of spontaneous contractions in CM was increased in the absence of NO-GC. In ileum from control (ctrl) animals, inhibition of NO-GC increased whereas NO-GC stimulation decreased tissue tone. In contrast, contractile activity in LM was not different between ctrl and knockout strains. Here, NO led to suppression of spontaneous contractions of ctrl ileum whereas GCKO tissue was unaffected. To our surprise, NO suppressed spontaneous contractions in SMC-GCKO ileum indicating participation of other cell type(s). CONCLUSIONS AND INFERENCES NO-GC in SMC is involved in the regulation of tone and amplitude of spontaneous contractions in ileal CM. In LM, NO induces suppression of spontaneous contractions via NO-GC in a non-SMC type.
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Abstract
AIM To investigate an immortalized murine odontoblast cell line as a potential alternative for experimental studies on dentinogenesis. METHODOLOGY The MO6-G3 cell line was investigated morphologically over 3, 7, 11 and 42 days of culture, using histochemical localization of dentine sialoprotein (DSP), alkaline phosphatase (AP), type I collagen and actin filaments, histoenzymatic staining and biochemical investigation of AP and finally, transmission and scanning electron microscopy. RESULTS Scanning electron micrographs showed elongated cells. Accordingly, a polarized organization of odontoblasts was observed by transmission electron microscopy, identifying distinct subcellular compartments as described in vivo. The secretion apparatus, which includes cisternae of rough endoplasmic reticulum, Golgi apparatus saccules and secretion vesicles and granules, was longitudinally organized in the supranuclear compartment ending distally in the secretory pole. A cellular process was observed. The investigation of the cytoskeleton network revealed that actin microfilaments were organized in parallel stress fibre oriented depending on the longitudinal axis of the cytoplasm. Immunofluorescent labelling showed a continuous expression of type I collagen, DSP and AP. A unipolar distribution characterized intracellular DSP immunoreactivity. Histoenzymology revealed AP active sites increasing from 3 to 11 days albeit with a moderate level of activity comparatively to the in vivo situation in dental cells. CONCLUSION This cell line MO6-G3 not only showed the criteria of odontoblast phenotype as previously reported but also the characteristic morphodifferentiation pattern of polarized odontoblasts at the cellular level but with an apparent random distribution.
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C-fms expression correlates with monocytic differentiation in PML-RAR alpha+ acute promyelocytic leukemia. Leukemia 2003; 17:98-113. [PMID: 12529666 DOI: 10.1038/sj.leu.2402812] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2002] [Accepted: 09/19/2002] [Indexed: 11/09/2022]
Abstract
We have investigated the expression of the M-CSF receptor (c-fms) in 16 freshly isolated acute promyelocytic leukemias (APL) expressing the PML/RAR alpha fusion protein. In parallel, we evaluated the capacity of these cells to differentiate along the granulocytic and monocytic pathways. c-fms was constitutively and constantly expressed in all cases sensitive in vivo to all-trans retinoic acid (ATRA) and its expression was further potentiated following in vitro induction with ATRA. Furthermore, gel-shift analysis of APL cells showed elevated levels of PU.1 binding activity to the M-CSF receptor promoter, particularly after ATRA stimulation. Interestingly, the rise of PU.1 binding activity as well as of PU.1 levels after ATRA treatment was significantly higher in APL patients exhibiting monocytic maturation, as compared to those that did not undergo monocytic differentiation. A variable proportion of ATRA-induced APL cells exhibited monocyte-like morphology and immunophenotype: the proportion of monocytic cells was consistently increased by combined treatment with ATRA and diverse hematopoietic growth factors cocktails, which always comprised M-CSF. Monocytic cells originating from in vitro ATRA-induced maturation of APL cells derive from the leukemic clone as suggested by two lines of evidence: (1) monocytic cells harbor the 15;17 translocation; (2) monocytic cells possess Auer bodies. The c-fms(bright) leukemic blasts preferentially showed the capacity for monocytic differentiation as compared to the c-fms(dim/-) subset: indeed, enforced expression of c-fms into NB4, a PML/RAR alpha+ cell line, favored the onset of monocytic maturation. Finally, low c-fms expression was observed in an APL relapsing patient resistant to ATRA, as well as in an APL case with t(11;17), PLZF/RAR alpha+. These observations indicate that PML/RAR alpha+ APL blasts are bipotent for differentiation through both neutrophilic and monocytic lineages, whereby monocytic differentiation is linked to c-fms expression and stimulation.
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MESH Headings
- Adult
- Aged
- Aged, 80 and over
- Antigens, CD/immunology
- Antigens, CD/metabolism
- Antineoplastic Agents/therapeutic use
- Blotting, Western
- Cell Differentiation
- DNA Primers/chemistry
- Electrophoretic Mobility Shift Assay
- Female
- Flow Cytometry
- Gene Expression Regulation, Leukemic
- Humans
- Immunophenotyping
- In Situ Hybridization, Fluorescence
- Leukemia, Promyelocytic, Acute/drug therapy
- Leukemia, Promyelocytic, Acute/metabolism
- Leukemia, Promyelocytic, Acute/pathology
- Male
- Middle Aged
- Monocytes/pathology
- Neoplasm Proteins/metabolism
- Oncogene Proteins, Fusion/metabolism
- Phenotype
- Proto-Oncogene Proteins/metabolism
- RNA, Messenger/genetics
- RNA, Neoplasm
- Receptor, Macrophage Colony-Stimulating Factor/metabolism
- Receptors, Colony-Stimulating Factor/metabolism
- Reverse Transcriptase Polymerase Chain Reaction
- Trans-Activators/metabolism
- Transfection
- Tretinoin/therapeutic use
- Tumor Cells, Cultured
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Differential expression and activity of tissue-nonspecific alkaline phosphatase (TNAP) in rat odontogenic cells in vivo. J Histochem Cytochem 1999; 47:1541-52. [PMID: 10567438 DOI: 10.1177/002215549904701206] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Among the four existing isoforms of alkaline phosphatase (AP), the present study is devoted to tissue-nonspecific alkaline phosphatase (TNAP) in mineralized dental tissues. Northern blot analysis and measurements of phosphohydrolase activity on microdissected epithelium and ectomesenchyme, in situ hybridization, and immunolabeling on incisors confirmed that the AP active in rodent teeth is TNAP. Whereas the developmental pattern of TNAP mRNA and protein and the previously described activity were similar in supra-ameloblastic and mesenchymal cells, they differed in enamel-secreting cells, the ameloblasts. As previously shown for other proteins involved in calcium and phosphate handling in ameloblasts, a biphasic pattern of steady-state TNAP mRNA levels was associated with additional variations in ameloblast TNAP protein levels during the cyclic modulation process. Although the association of TNAP upregulation and the initial phase of biomineralization appeared to be a basic feature of all mineralized tissues, ameloblasts (and to a lesser extent, odontoblasts) showed a second selectively prominent upregulation of TNAP mRNA/protein/activity during terminal growth of large enamel crystals only, i.e., the maturation stage. This differential expression/activity for TNAP in teeth vs bone may explain the striking dental phenotype vs bone reported in hypophosphatasia, a hereditary disorder related to TNAP mutation. (J Histochem Cytochem 47:1541-1552, 1999)
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