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1.
Rheumatol Int ; 31(7): 895-901, 2011 Jul.
Article in English | MEDLINE | ID: mdl-20238221

ABSTRACT

In Systemic Sclerosis (SSc), face involvement causes functional loss as well as aesthetic changes and loss of the self-image. The aim of the work is to evaluate the efficacy of a rehabilitation program based on the combination of Kabat's technique, connective massage and kinesitherapy specifically conceived for the face of SSc patients. Forty SSc patients were enrolled: 20 patients (interventional group) were treated for 9 weeks (twice a week, 1 h per session) with a combined connective tissue massage, Kabat's technique, kinesitherapy and home exercise program, and 20 patients (control group) were assigned only home exercise program. All patients were assessed at baseline (T0), at the end of the treatment (T1) and after 9 weeks of follow-up (T2). They were evaluated with SF-36, HAQ, modified Rodnan skin score, mouth opening in centimeters and Mouth Handicap in Systemic Sclerosis (MHISS) scale. At T1, both groups improved in mouth opening (P < 0.05), but the improvement was maintained at T2 only in interventional group. In interventional group, facial skin score ameliorated at T1 and maintained at T2 (P < 0.05 vs. T0), while no change was observed in controls. In both groups, SF-36 and HAQ were not affected by the treatment. MHISS scale improved significantly in interventional group at T1 (P < 0.001), while no change was found in controls. The combination of connective tissue massage, Kabat's technique, kinesitherapy and home-based exercises is more effective than a home exercise program alone in the rehabilitative treatment of SSc facial involvement.


Subject(s)
Exercise Therapy/methods , Face/physiology , Massage/methods , Scleroderma, Systemic/rehabilitation , Scleroderma, Systemic/therapy , Aged , Combined Modality Therapy , Connective Tissue , Face/blood supply , Facial Muscles/blood supply , Facial Muscles/physiology , Female , Humans , Male , Middle Aged , Scleroderma, Systemic/physiopathology , Treatment Outcome
2.
Clin Exp Rheumatol ; 28(5 Suppl 62): S15-8, 2010.
Article in English | MEDLINE | ID: mdl-21050540

ABSTRACT

OBJECTIVES: To investigate carpal tunnel syndrome (CTS) with ultrasound (US) in asymptomatic SSc patients and to seek out the relationship between CTS and SSc clinical variables METHODS: In 64 SSc patients (55 women and 9 men, mean age 57±14 years) and in 30 healthy controls, area (MNA), transverse (MNT) and anteroposterior (MNAP) diameters of MN at carpal tunnel were studied with US (My Lab 25 XVG US Esaote 18 MHz). MN flattening ratio (MNFR) was calculated. Duration of disease, subset (limited, diffuse), phase of skin involvement (oedematous, atrophic, fibrotic), modified Rodnan skin score (mRSS) and friction tendon rub were also recorded. RESULTS: MNA (p<0.001), MNT (p<0.005) and MNFR (p<0.005) were significantly higher in the SSc patients than in controls, while no difference in MNAP was found. There was no correlation between median nerve (MN) and SSc clinical features (only lower MNAP correlated inversely with longer disease duration; Spearman coefficient -0.2). CONCLUSIONS: MN involvement is frequently present in all phases of asymptomatic SSc patients, independently to clinical variables.


Subject(s)
Carpal Tunnel Syndrome/diagnostic imaging , Scleroderma, Diffuse/diagnostic imaging , Scleroderma, Limited/diagnostic imaging , Ultrasonography/methods , Adult , Aged , Aged, 80 and over , Asymptomatic Diseases , Carpal Tunnel Syndrome/etiology , Carpal Tunnel Syndrome/physiopathology , Early Diagnosis , Female , Health Status , Humans , Male , Median Nerve/diagnostic imaging , Median Nerve/physiopathology , Middle Aged , Scleroderma, Diffuse/complications , Scleroderma, Diffuse/physiopathology , Scleroderma, Limited/complications , Scleroderma, Limited/physiopathology , Severity of Illness Index , Skin/pathology , Young Adult
3.
Ann Rheum Dis ; 68(1): 94-8, 2009 Jan.
Article in English | MEDLINE | ID: mdl-18308744

ABSTRACT

BACKGROUND: In systemic sclerosis (SSc) reduced capillary density decreases blood flow and leads to tissue ischaemia and fingertip ulcers. Nail fold videocapillaroscopy (NVC) is a diagnostic and follow-up parameter useful to evaluate the severity, activity and the stage of SSc microvascular damage. Autologous haemopoietic stem cell transplantation (HSCT) is a new treatment for patients with severe diffuse cutaneous systemic sclerosis (dcSSc) refractory to conventional therapies. We aimed to evaluate the improvement of microvasculature after HSCT using NVC. METHODS: A total of 16 patients with severe dcSSc with a "late" videocapillaroscopy pattern underwent an immunesuppressive treatment: 6 were treated with HSCT and 10 with monthly pulse cyclophosphamide (CYC) 1 g for 6 months and then orally with 50 mg/day for further 6 months. NVC was performed before and after 3 months from the beginning of each treatment and then repeated every 3 months. RESULTS: In all patients, before HSCT NVC showed large avascular areas and ramified capillaries and vascular architectural disorganisation ("late" pattern). At 3 months after HSCT, the NVC pattern changed from "late" into "active", showing frequent giant capillaries (>6/mm) and haemorrhages, absence of avascular areas and angiogenesis phenomena; 1 year after HSCT, microvascular abnormalities were still in the "active" pattern. In patients treated with CYC, no NVC modifications were observed during 24 months of follow-up and the pattern always remained "late". CONCLUSIONS: These results indicate that HSCT with a high dose CYC regimen may foster vascular remodelling, while CYC at lower doses and with a chronic regimen does not influence the microvasculature.


Subject(s)
Hematopoietic Stem Cell Transplantation , Microcirculation , Scleroderma, Diffuse , Adult , Cyclophosphamide/therapeutic use , Drug Administration Schedule , Female , Humans , Immunosuppressive Agents/therapeutic use , Male , Microscopic Angioscopy/methods , Middle Aged , Nails/blood supply , Prospective Studies , Regional Blood Flow , Scleroderma, Diffuse/drug therapy , Scleroderma, Diffuse/physiopathology , Scleroderma, Diffuse/surgery , Statistics, Nonparametric , Transplantation, Autologous , Video Recording
4.
Clin Exp Rheumatol ; 27(3 Suppl 54): 44-50, 2009.
Article in English | MEDLINE | ID: mdl-19796561

ABSTRACT

INTRODUCTION: Rehabilitation may contribute to the management of Systemic Sclerosis (SSc) dealing with disabilities due to skin and joint involvement. AIM: to evaluate the efficacy of a district specific and global rehabilitation program tailored for SSc patients. MATERIALS AND METHODS: 20 SSc patients were enrolled and randomly assigned to 2 groups. Interventional group (10 pts) was treated that included hand and face specific rehabilitation and at least a global rehabilitation technique such as hydrokinesytherapy or land-based program, also comprising respiratory exercises. Hand lymphatic drainage was added when necessary. Observational group (10 patients) was only provided with educational advices and medical information about SSc. Patients were evaluated at baseline (T0) and after the 9 weeks treatment period (T1). Interventional group was also assessed after a 9 weeks follow-up (T2). Patients were evaluated by SF-36, HAQ and a purpose-built-questionnaire for global health condition and with Hamis test, Duruöz scale, range of motion, water volumetric test, mouth opening and a purpose-built-questionnaire for hand and face involvement. RESULTS: At the end of the treatment, patients of interventional group improved in all the parameters evaluated. At follow-up, mouth mobility and functionality such as global health status was partially lost, only hand mobility and functionality parameters were maintained. No changes were observed in controls. CONCLUSION: The association and of district-specific and global rehabilitative techniques conceived and tailored for SSc patients improves disability, HRQoL, hand and face disability and functionality, with its effects partially maintained at the follow-up.


Subject(s)
Musculoskeletal Manipulations , Scleroderma, Systemic/rehabilitation , Disability Evaluation , Female , Hand Joints/physiopathology , Health Status , Humans , Male , Massage , Middle Aged , Muscle Stretching Exercises , Quality of Life , Scleroderma, Systemic/physiopathology , Treatment Outcome
5.
Clin Exp Rheumatol ; 27(3 Suppl 54): 51-4, 2009.
Article in English | MEDLINE | ID: mdl-19796562

ABSTRACT

BACKGROUND: In systemic sclerosis (SSc), digital ulcers (DU) are painful, difficult to heal and frequently infected, thus greatly affecting quality of life and increasing SSc-related disability. Vitamin E has been previously used in cutaneous lesions for its antioxidant and anti-inflammatory effects. OBJECTIVES: To study the healing effect of D-alpha-tocopheryl acetate (acetic ester of alpha-tocopherol) (VE) gel on DU of SSc patients. METHODS: 27 SSc patients with a total of 86 DU were enrolled in an open pilot study. The patients were randomly assigned to two groups: 15 patients were treated until DU healing with the local standard ulcer care protocol with the application of vitamin E gel (experimental group), while 12 patients were treated with standard ulcer care protocol only (control group). In both groups, DU were treated twice a week and pain was scored by a NRS (numeric rating scale). In both groups the cost of medications was analysed. RESULTS: VE induced a faster healing of DU in respect to controls (13.22+/-2.72 weeks, versus 20.94+/-3.65; p<0.0001) with a lower number of medications (26.18+/-5.63 vs. 41.88+/-7.31; p<0.0001). Resolution of pain was faster in experimental (17.82+/-4,59 medications) than in controls (26.26+/-19.16 medications) (p=0.0022). In the experimental group, the cost of medications was significantly lower (6,919.15 euros/patient) than in the control group (11,056.32 euros/patient). CONCLUSION: The application of VE reduces time of healing and has a faster resolution of pain, with a significant reduction of costs. Topical VE may improve the management of DU in SSc.


Subject(s)
Antioxidants/therapeutic use , Scleroderma, Systemic/drug therapy , Skin Ulcer/drug therapy , Vitamin E/therapeutic use , Administration, Topical , Antioxidants/administration & dosage , Female , Fingers , Gels , Humans , Male , Middle Aged , Pain/drug therapy , Pain/etiology , Pain/physiopathology , Pilot Projects , Scleroderma, Systemic/complications , Scleroderma, Systemic/physiopathology , Severity of Illness Index , Skin/drug effects , Skin/pathology , Skin Ulcer/etiology , Skin Ulcer/physiopathology , Vitamin E/administration & dosage
6.
Respiration ; 78(1): 56-62, 2009.
Article in English | MEDLINE | ID: mdl-18931474

ABSTRACT

BACKGROUND: Induced sputum (IS) is a noninvasive tool, which can be used to collect cellular and soluble materials from lung airways. OBJECTIVE: To evaluate if IS may be a useful and safe tool for the detection of airway inflammation in patients with interstitial lung disease (ILD) in systemic sclerosis (SSc). METHODS: Sixty-eight patients with SSc and ILD as well as 18 healthy individuals (controls) were selected and submitted to IS examination. In 34 of 68 patients with SSc, bronchoalveolar lavage (BAL) was also performed. Safety of IS was assessed by comparison of forced expiratory volume in the first second (FEV(1)), FEV(1)/forced vital capacity ratio and peak expiratory flow before and after the IS procedure. Cell composition in samples collected by BAL and IS was correlated, and IS total and differential cell count in SSc patients and controls were compared. RESULTS: The total number of cells was significantly higher in IS samples of SSc patients compared to those of healthy controls. Mean percentage of neutrophils was also higher in SSc patients (41.79 +/- 23.89 vs. 27.37 +/- 17.90), as well as lymphocytes (17.42 +/- 19.70 vs. 3.13 +/- 2.28) and eosinophils (2.35 +/- 4.43 vs. 0.41 +/- 0.46). On the other hand, mean percentage of macrophages was higher in healthy individuals (69.10 +/- 19.15 vs. 36.96 +/- 20.68). In fluid recovered by BAL, the most frequent cells were macrophages (67.89% +/- 17.26), while neutrophils (14.77 +/- 17.18%) and lymphocytes (15.62 +/- 13.46%) were less frequent and eosinophils (1.66 +/- 2.08%) were rare. A similar pattern of cell composition was found in IS samples (41.15 +/- 21.67% of macrophages, 39.72 +/- 23.15% of neutrophils, 15.28 +/- 19.46% of lymphocytes and 2.56 +/- 5.03% of eosinophils). Strength of correlation between BAL and IS was significant for macrophages and neutrophils. After IS procedure was performed, improvement of FEV(1) (mean value before IS was 85.09 +/- 14.44 and 88.93 +/- 16.40 after IS) and FEV(1)/forced vital capacity (mean value before IS was 98.53 +/- 12.11 and 105.22 +/- 10.78 after IS) was observed. CONCLUSION: The IS method may allow a noninvasive assessment of cell composition in airway fluid and may contribute to the better understanding of upper/medium airway inflammation in SSc. Future studies are needed to verify whether IS can replace invasive procedures for the detection and monitoring of lung inflammation in SSc.


Subject(s)
Bronchoalveolar Lavage Fluid/cytology , Lung Diseases, Interstitial/pathology , Scleroderma, Systemic/pathology , Sputum/cytology , Adult , Aged , Aged, 80 and over , Case-Control Studies , Diagnostic Techniques, Respiratory System , Female , Humans , Lung Diseases, Interstitial/etiology , Male , Middle Aged , Scleroderma, Systemic/complications
7.
Clin Rheumatol ; 37(5): 1249-1255, 2018 May.
Article in English | MEDLINE | ID: mdl-29470737

ABSTRACT

Iloprost (ILO) is employed intravenously for the treatment of severe Raynaud phenomenon (RP) and digital ulcers (DU) in systemic sclerosis (SSc). The aim of this study was to evaluate the safety and tolerability of the intravenous treatment with ILO in different phases of SSc. Eighty-one consecutive non-selected SSc patients, all on nifedipine, with moderate RP, treated with ILO infusion, were retrospectively evaluated. Patients were sub classified according to the edematous or fibrotic/atrophic cutaneous phase of the disease. ILO was infused with a progressive increase of the dosage up to the achievement of patient's tolerance, 1 day/week. In cases of slower infusion regimen due to adverse events (AE) at the beginning of the administration, patients received a lower dose of the drug (not possible to quantify precisely the final cumulative dosage). 16/81 SSc patients presented digital edema, 5 developed diarrhea, and 9 developed transient hypotension during the infusion at 20 ml/h that ameliorated when the drug was withdrawn. Moreover, 10/16 edematous patients experienced significant and painful digital swelling, unlike patients in the fibrotic group (p < 0.0001); 11/16 patients reported flushing and 7/16 headache, always controlled with dose tapering below 10 ml/h. In the atrophic/fibrotic phase patients (65/81), 10 developed diarrhea and 24 hypotension at infusion rate of 20 ml/h that led to temporary withdrawal of the drug. When ILO was restarted and kept below 10 ml/h, no side effects were experienced. 23/65 patients experienced flushing and 8/65 headache, all controlled with infusion reduction below 10 ml/h. In these patients, adverse events were significantly less frequent than in the edematous group (p = 0.023 and p = 0.008, respectively). Our data suggest that calcium channel blockers should be transitorily stopped while using ILO and that a pre-treatment approach might reduce or control adverse events. In patients with digital edema, ILO infusion should be carefully employed after the evaluation of patient's drug tolerance.


Subject(s)
Iloprost/adverse effects , Raynaud Disease/drug therapy , Scleroderma, Systemic/complications , Skin Ulcer/drug therapy , Adult , Diarrhea/chemically induced , Female , Fingers , Humans , Iloprost/therapeutic use , Male , Microscopic Angioscopy , Middle Aged , Raynaud Disease/etiology , Retrospective Studies , Skin Ulcer/etiology , Treatment Outcome
8.
J Neurosci Methods ; 54(1): 23-9, 1994 Sep.
Article in English | MEDLINE | ID: mdl-7529349

ABSTRACT

Paraffin and some plastic embedding techniques will destroy many antigens routinely detected by immunocytochemistry performed on frozen tissue sections. However, morphologic quality is compromised to varying extents in frozen tissue, even with the use of cryoprotection. We report a simple glycol-methacrylate (GMA) embedding technique using vibratome-sectioned mouse brain reacted for tyrosine hydroxylase (TH) immunoreactivity before plastic embedding. In this study we used a short (4 h) simple, GMA embedding procedure which subsequently provided 1.5-5.0 microns sections yielding morphologic details superior to frozen or paraffin sections. Prior to embedding we used a peroxidase-antiperoxidase (PAP) reaction with the 3,3'diaminobenzidine tetrahydrochloride (DAB) chromogen visualizing TH. Several different counterstains were used, demonstrating the versatility of this embedding procedure.


Subject(s)
Brain/pathology , Histological Techniques , Immunoenzyme Techniques , Methacrylates , Plastic Embedding , 3,3'-Diaminobenzidine , Animals , Brain/enzymology , Male , Mice , Mice, Inbred C57BL , Staining and Labeling , Tyrosine 3-Monooxygenase/metabolism
11.
Ann Rheum Dis ; 66(7): 977-9, 2007 Jul.
Article in English | MEDLINE | ID: mdl-17344244

ABSTRACT

BACKGROUND: In systemic sclerosis (SSc), joint involvement may reduce the functional capacity of the hands. Intravenous immunoglobulins have previously been shown to benefit patients with SSc. AIM: To verify the efficacy of intravenous immunoglobulins on joint involvement and function in SSc. PATIENTS AND METHODS: 7 women with SSc, 5 with limited and 2 with diffuse SSc, with a severe and refractory joint involvement were enrolled in the study. Methotrexate and cyclophosphamide pulse therapy did not ameliorate joint symptoms. Hence, intravenous immunoglobulins therapy was prescribed at a dosage of 2 g/kg body weight during 4 days/month for six consecutive courses. The presence of joint tenderness and swelling, and articular deformities (due to primary joint involvement and not due to skin and subcutaneous changes) were evaluated. Before and after 6 months of treatment, patients were subjected to (1) Ritchie Index (RI) evaluation of joint involvement; (2) Dreiser Algo-Functional Index (IAFD) evaluation of hand joint function; (3) pain visual analogue scale (VAS) to measure joint pain; (4) Health Assessment Questionnaire (HAQ) to evaluate the limitations in everyday living and physical disability; and (5) modified Rodnan Skin Score for skin involvement. RESULTS: After 6 months of intravenous immunoglobulins therapy, joint pain and tenderness, measured with the VAS, decreased significantly (p<0.03), and hand function (IAFD) improved significantly (p<0.02), together with the quality of life (HAQ; p<0.03). All patients significantly improved, except for one. The skin score after 6 months of intravenous immunoglobulins therapy was significantly reduced (p<0.003). CONCLUSION: This pilot study suggests that intravenous immunoglobulins may reduce joint pain and tenderness, with a significant recovery of joint function in patients with SSc with severe and refractory joint involvement. The cost of intravenous immunoglobulins might limit their use only to patients who failed disease-modifying antirheumatic drugs.


Subject(s)
Arthralgia/drug therapy , Hand Joints/physiopathology , Immunoglobulins, Intravenous/therapeutic use , Scleroderma, Systemic/drug therapy , Adult , Aged , Cohort Studies , Female , Hand Joints/drug effects , Humans , Middle Aged , Pilot Projects , Scleroderma, Diffuse/drug therapy , Scleroderma, Diffuse/physiopathology , Scleroderma, Limited/drug therapy , Scleroderma, Limited/physiopathology , Scleroderma, Systemic/physiopathology , Treatment Outcome
12.
Rheumatology (Oxford) ; 46(5): 772-5, 2007 May.
Article in English | MEDLINE | ID: mdl-17264090

ABSTRACT

OBJECTIVE: Systemic sclerosis (SSc) is characterized by microvascular and macrovascular alterations. The D allele of the ACE I/D polymorphism is known to be associated with an increased incidence of atherosclerosis and has been recently proposed as associated with increased risk of SSc. This study evaluates the relationship between intima-media thickness (IMT), ankle-brachial pressure measurements (ABPI) and ACE I/D polymorphism in SSc patients. METHODS: According to the presence of ACE D allele (analysed by PCR), 53 SSc patients (47 females and 6 males; median age was 60.4 +/- 10.68 yrs; range 40-75 yrs) were divided in carriers of the D allele (DD + ID) (n = 46) and carriers of the I allele (II) (n = 7). In these patients, IMT and ABPI [calculated as the posterior tibial artery pressure (mmHg) divided by the brachial pressure] were obtained. Forty-three healthy controls (40 women and 13 men; median age 56.3 +/- 10.23; range 40-70 yrs) of the same ethnicity were recruited. RESULTS: SSc patients had IMT significantly higher than controls (0.85 +/- 0.03 vs 0. 68 +/- 0.01; P < 0.03). No significant differences (P > 0.3) in ABPI values between patients (1.018 +/- 0.10) and controls (1.091 +/- 0.11) were found. SSc patients with ACE DD and ID genotype showed an IMT significantly greater (0.89 +/- 0.03) than those carrying the II genotype (0.61 +/- 0.01) (P < 0.04). ABPI was not different among ACE gene genotypes. CONCLUSION: Our findings confirm an increased prevalence of macrovascular disease in SSc patients and show that IMT is greater in patients carrying the ACE DD and ID genotype in comparison with II homozygotes. This suggests that, in SSc, the presence of ACE D allele may predispose to an involvement of the macrovascular system.


Subject(s)
Arteriosclerosis/genetics , Peptidyl-Dipeptidase A/genetics , Polymorphism, Genetic , Scleroderma, Systemic/genetics , Adult , Aged , Arteriosclerosis/etiology , Arteriosclerosis/pathology , Blood Pressure , Brachial Artery/physiopathology , Carotid Artery, Common/diagnostic imaging , Carotid Artery, Common/pathology , Female , Gene Frequency , Genetic Predisposition to Disease , Humans , Male , Middle Aged , Scleroderma, Systemic/complications , Scleroderma, Systemic/pathology , Tunica Intima/diagnostic imaging , Tunica Intima/pathology , Tunica Media/diagnostic imaging , Tunica Media/pathology , Ultrasonography
13.
Rheumatology (Oxford) ; 46(3): 412-6, 2007 Mar.
Article in English | MEDLINE | ID: mdl-16936331

ABSTRACT

OBJECTIVE: Advanced glycation endproducts (AGEs), including Nepsilon-(carboxymethyl)lysine-protein adducts (CML) are involved in micro/macrovascular changes and are co-localized with adhesion molecules in inflamed tissues. Serum levels of CML were investigated in systemic sclerosis (SSc) characterized by microvascular modifications and correlated with indices of micro/macrovascular damage. METHODS: In 66 SSc patients (limited SSc, n = 55; diffuse SSc, n = 11) and 20 controls, CML serum levels were measured by enzyme-linked immunosorbent assay. Nailfold capillaroscopy, intima-media thickness (IMT) and the ankle-brachial index (ABI) were also recorded, to characterize micro/macrovascular involvement. RESULTS: CML levels were significantly higher in SSc (79.2 +/- 39 mg/ml vs 49.6 +/- 26.1 mg/ml, mean +/- s.d.; P<0.01), without significant differences between SSc subsets. CML levels were significantly higher in all capillaroscopic patterns: the 'early' pattern showed higher levels than 'active' and 'late' patterns. IMT was significantly higher in SSc (P<0.01) than in controls, whilst ABI was no different from controls. CONCLUSIONS: These data indicate that although both CML formation and macrovascular involvement are increased in SSc, there is no correlation between these two parameters. However, the characteristic early nailfold capillaroscopy changes of SSc are associated with proportionally greater CML formation, suggesting that AGEs are involved in SSc microangiopathy.


Subject(s)
Lysine/analogs & derivatives , Scleroderma, Systemic/blood , Adult , Aged , Enzyme-Linked Immunosorbent Assay/methods , Female , Glycation End Products, Advanced/blood , Humans , Lysine/blood , Male , Microcirculation , Microscopic Angioscopy , Middle Aged , Scleroderma, Systemic/pathology , Scleroderma, Systemic/physiopathology , Tunica Intima/pathology , Tunica Media/pathology
14.
Ann Rheum Dis ; 64(3): 382-7, 2005 Mar.
Article in English | MEDLINE | ID: mdl-15708892

ABSTRACT

BACKGROUND: In systemic sclerosis (SSc) the lack of an angiogenic response to hypoxia may be due to inappropriate synthesis of angiogenic and angiostatic factors. Tissue kallikrein (t-kallikrein), regulating the kallikrein-kinin system and acting on the microcirculation, is a potent angiogenic agent, and kallistatin is its natural inhibitor. OBJECTIVE: To evaluate, in patients with SSc, t-kallikrein and kallistatin levels and their correlation with clinical features and measures of microvascular involvement. PATIENTS AND METHODS: Serum levels of t-kallikrein and kallistatin (ELISA) and t-kallikrein skin expression (immunohistochemistry) were studied in patients with SSc, and evaluated for subset (dSSc or lSSc), clinical and immunological features, and microvascular involvement (ulcers, telangiectasias, nailfold videocapillaroscopy). RESULTS: Circulating levels of t-kallikrein were higher in SSc than in controls (p<0.001). T-kallikrein did not differ between lSSc and dSSc, although it was higher in lSSc than in controls (p<0.001).T-kallikrein levels were higher in patients with early and active capillaroscopic pattern than in those with late pattern (p = 0.019 and 0.023). Patients with giant capillaries and capillary microhaemorrhages had higher t-kallikrein concentrations than patients with architectural derangement (p = 0.04). No differences in kallistatin levels were detected between patients with SSc and controls, or between lSSc and dSSc. In early SSc skin, the presence of t-kallikrein was found in endothelial and in perivascular inflammatory cells, while no staining in skin of advanced SSc was detected. CONCLUSION: T-kallikrein levels are increased in patients with SSc, particularly in lSSc, and are associated with early and active capillaroscopic patterns. T-kallikrein may play a part in SSc microvascular changes.


Subject(s)
Scleroderma, Systemic/blood , Tissue Kallikreins/blood , Adult , Aged , Autoantibodies/blood , Capillaries/pathology , Carrier Proteins/blood , Endothelium, Vascular/metabolism , Female , Humans , Immunoenzyme Techniques , Male , Microcirculation , Microscopic Angioscopy/methods , Middle Aged , Scleroderma, Systemic/pathology , Serpins/blood , Skin/metabolism , Tissue Kallikreins/antagonists & inhibitors
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