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1.
Transfus Apher Sci ; 62(5): 103752, 2023 Oct.
Article in English | MEDLINE | ID: mdl-37355441

ABSTRACT

INTRODUCTION: Erythrocytapheresis, an apheresis treatment which selectively removes red blood cells, is an alternative to therapeutic phlebotomy, over which it has several advantages. Actually there is a high degree of variability in the use of this treatment. This prompted SIdEM (Italian Society of Hemapheresis and Cell Manipulation) to conduct a survey on the use of erythrocytapheresis in the Italian Transfusion Services. The purpose is to monitor this activity in the treatment of Polycythemia Vera (pv), secondary erythrocytosis and hemochromatosis. MATERIALS AND METHODS: A data collection file was sent to the SIdEM regional delegates who, in turn, involved the Transfusion Centers in the areas they cover. The data collected were processed on a Microsoft Excel spreadsheet. RESULTS: 75 centers from 14 Italian regions responded to the Survey: 36 centers (48 %) use erythrocytapheresis (35 centers perform therapeutic apheresis and 1 center only donor apheresis), 39 centers (52 %) do not (15 centers perform therapeutic apheresis, 18 centers only donor apheresis and 6 centers do not perform either therapeutic apheresis or donor apheresis). Although most centers have a substantially uniform attitude concerning the indications for which erythrocytapheresis is used, the survey shows that there are still differences more evident in the treatment of secondary erythrocytosis than in the treatment of pv or hemochromatosis. CONCLUSIONS: This survey has been useful to document the current Italian reality and to raise awareness about the need for improvement in optimizing and standardizing the use of a therapy with a great potential to exploit properly.


Subject(s)
Blood Component Removal , Hemochromatosis , Polycythemia Vera , Polycythemia , Humans , Polycythemia/therapy , Polycythemia Vera/therapy , Hemochromatosis/therapy , Phlebotomy , Italy
2.
Transfus Clin Biol ; 28(1): 89-91, 2021 Feb.
Article in English | MEDLINE | ID: mdl-33285299

ABSTRACT

This study shows clinical efficacy and safety profile of an off-label use of caplacizumab for the treatment of immune-mediated thrombotic thrombocytopenic purpura in a middle-aged obese male patient manifesting aphasia, weakness and unconsciousness. Routine blood tests revealed haemolytic anaemia, severe thrombocytopenia (platelet count=20×109/L) and moderate creatinine increase. Diagnosis was based on the clinical judgement and laboratory determinations (undetectable ADAMTS13 activity and presence of anti-ADAMTS13 antibodies). The patient underwent plasma-exchange and an adjunctive treatment with prednisone (1mg/Kg/day), but the occurrence of a refractory and exacerbated form of disease suggested also using rituximab (375mg/m2 weekly for 4 weeks) and caplacizumab as salvage treatments. The caplacizumab was given at 10mg/day subcutaneously without the first intravenous bolus. Because von Willebrand factor inhibition, platelet count recovery and remission of symptoms were achieved, use of caplacizumab with this scheme appeared to be as effective as the approved one. Although this is an off-label use, this case highlights the potential of this new treatment, in terms of drug's efficacy and safety.


Subject(s)
Off-Label Use , Purpura, Thrombotic Thrombocytopenic , Single-Domain Antibodies , ADAMTS13 Protein , Humans , Male , Middle Aged , Obesity/complications , Obesity/drug therapy , Plasma Exchange , Purpura, Thrombotic Thrombocytopenic/drug therapy , Single-Domain Antibodies/therapeutic use
3.
Transfus Apher Sci ; 59(2): 102753, 2020 Apr.
Article in English | MEDLINE | ID: mdl-32305212

ABSTRACT

There is considerable heterogeneity in manipulation and cryopreservation of hematopoietic stem cells (HSC) for autologous HSC transplantation across Europe and Italy. To better address this point, three Italian Scientific Societies (GITMO- Gruppo Italiano per il Trapianto di Midollo Osseo; SIDEM- Società Italiana Emaferesi e Manipolazione Cellulare; and GIIMA- Gruppo Italiano Interdisciplinare Manipolazione e Aferesi per Terapie Cellulari), in collaboration with the Competent Authority "National Transplant Center" (CNT) sent to 85 Italian transplant centers (TC) a survey, which included 12 questions related to the most critical elements in graft processing. Fifty-nine centers (70 %) responded to the questionnaire. Overall, this survey demonstrates that the majority (>90 %) of responding TC used standardized procedures for HSC processing; however, an intercenter heterogeneity was clearly documented in several standard operating procedures adopted by different TC. These results seem to suggest that further standardization and efforts are needed to provide recommendations and guidelines on HSC manipulation, cryopreservation and functional assessment of cryopreserved material for autologous HSCT.


Subject(s)
Cryopreservation/methods , Peripheral Blood Stem Cell Transplantation/methods , Transplantation, Autologous/methods , Humans , Italy , Surveys and Questionnaires
4.
Clin Ter ; 170(1): e16-e26, 2019.
Article in English | MEDLINE | ID: mdl-30789193

ABSTRACT

The issue of suicide has always been a very sensitive and important problem, that raises many questions in the society where it occurs, that is not always able to oppose an adequate response. Every scientist in the field agrees that this is an act provoked by multifaceted reasons, which include cultural, social and biographical motives. Therefore, this topic also poses ethical and civil problems, as well as epistemologic and research methodology issues, because of its complexity as a subject of study. The authors propose a case-by-case contribution, evaluating the judicial acts on 73 suicides made available by the Bari Public Prosecutor's Office for the years 2014-2016. The authors believe collected and systematized data, and the ensuing considerations, can offer a contribution to the debate in the field of legal and socio-healthcare actors, who are often the first to deal with and confront this complex and tragic phenomenon.


Subject(s)
Suicide/legislation & jurisprudence , Suicide/statistics & numerical data , Humans , Morals , Motivation , Risk Factors , Suicide/psychology
5.
Clin Ter ; 168(5): e293-e296, 2017.
Article in English | MEDLINE | ID: mdl-29044350

ABSTRACT

Choking in adults can prove fatal, despite resuscitation attempts. The manner of death can be natural, homicide or accident. When a death is due to choking, one must consider what conditions contributed to or predisposed the person to choking (eg. alcohol, drugs and physical and mental impairments). Homicidal deaths by choking are relatively uncommon, being more frequently accidental. The diagnosis of death by choking is made at autopsy when the airway is found occluded. If the individual had an occluded airway and the object or food was removed during resuscitation, the only way to make the diagnosis would be on the history. Here, we present a case of asphyxia (accidental or suicidal) by choking on a handkerchief in a patient with a long history of schizophrenia. The woman had attempted a previous suicide driven by evil spirits coming from inside her body, especially from the head and throat; in order to "shut-up" the spirit, she was trying to suffocate it with her hands or by a belt from her pants.


Subject(s)
Airway Obstruction/etiology , Asphyxia/etiology , Schizophrenic Psychology , Suicide , Accidents , Adult , Asphyxia/psychology , Female , Humans , Schizophrenia/complications , Spirit Possession , Suicide/psychology
6.
Clin Ter ; 166(1): e47-55, 2015.
Article in Italian | MEDLINE | ID: mdl-25756267

ABSTRACT

The authors of this study tackle the complex subject of parricide, which is a rare and often brutal form of homicide. Parricide has a high emotional impact on public opinion and on our collective imagination, especially in light of the fact that the perpetrators are often minors.. Three striking cases of parricide, taken from various documented sources and judicial files from the "N. Fornelli" Juvenile Penal Institute (Bari, Italy), are presented here. A review of the literature on the topic has revealed differences between parricides committed by adults and those committed by minors. In the end, the complex issues underlying such an unusual crime are connected to abuses and maltreatment that minor perpetrators of parricide have suffered, especially the emotional processes that are activated.


Subject(s)
Homicide/psychology , Adolescent , Adult , Emotions , Humans , Italy , Risk Factors
7.
FEBS Lett ; 587(18): 3058-62, 2013 Sep 17.
Article in English | MEDLINE | ID: mdl-23912081

ABSTRACT

Hepatitis B x antigen up-regulates the liver expression of URG7 that contributes to sustain chronic virus infection and to increase the risk for hepatocellular carcinoma by its anti-apoptotic activity. We have investigated the subcellular localization of URG7 expressed in HepG2 cells and determined its membrane topology by glycosylation mapping in vitro. The results demonstrate that URG7 is N-glycosylated and located to the endoplasmic reticulum membrane with an Nlumen-Ccytosol orientation. The results imply that the anti-apoptotic effect of URG7 could arise from the C-terminal cytosolic tail binding a pro-apoptotic signaling factor and retaining it to the endoplasmic reticulum membrane.


Subject(s)
Endoplasmic Reticulum/metabolism , Hepatitis B Antigens/metabolism , Hepatitis B virus/chemistry , Intracellular Membranes/metabolism , Multidrug Resistance-Associated Proteins/metabolism , Apoptosis , Endoplasmic Reticulum/genetics , Endoplasmic Reticulum/virology , Fluorescent Antibody Technique , Gene Expression Regulation , Glycosylation , Hep G2 Cells , Hepatitis B Antigens/genetics , Hepatitis B virus/genetics , Hepatitis B virus/metabolism , Host-Pathogen Interactions , Humans , Intracellular Membranes/virology , Multidrug Resistance-Associated Proteins/chemistry , Multidrug Resistance-Associated Proteins/genetics , Protein Binding , Signal Transduction
8.
Proteins ; 76(2): 461-76, 2009 Aug 01.
Article in English | MEDLINE | ID: mdl-19241470

ABSTRACT

Elastin-derived peptides (EDPs) have been intensively studied in view of their widely diverse biological activities. These are triggered both in normal and tumor cells, through peptide anchoring at the surface of the elastin-binding protein (EBP), a subunit of the elastin/laminin receptor. In this study, we investigated both the structure of the Sgal peptide, representing the elastin-binding domain of EBP, and its interaction with EDPs, through a combination of experimental and theoretical methods. Although the conformation of the Sgal peptide is highly flexible, we detected a type I beta-turn at the QDEA sequence. This represents the best structured motif in the entire Sgal peptide, which might therefore contribute to its binding activity. We further propose a novel three-dimensional model for the interaction between the Sgal peptide and EDPs; folding of the EDPs at the GXXP motif, in a conformation close to a type VIII beta-turn, provides the efficient contact of the protein with the Q residue of the Sgal peptide. This residue is exposed to the peptide surface, because of the beta-turn structure of the QDEA residues in the peptide sequence. We further show that this complex is stabilized by three hydrogen bonds involving EDPs backbone atoms.


Subject(s)
Elastin/chemistry , Peptide Fragments/chemistry , Receptors, Laminin/chemistry , Receptors, Laminin/metabolism , Amino Acid Sequence , Binding Sites , Circular Dichroism , Elastin/metabolism , Hydrogen Bonding , Models, Molecular , Molecular Sequence Data , Peptide Fragments/metabolism , Protein Conformation
9.
Acta Otorhinolaryngol Ital ; 29(5): 259-64, 2009 Oct.
Article in English | MEDLINE | ID: mdl-20162027

ABSTRACT

The aim of curative surgical oncology is to remove the primary tumour with a wide margin of normal tissue. What constitutes a sufficiently wide margin particularly in oral cancer is fundamentally unclear. The currently accepted standard is to remove the primary lesion with a 1.5-2 cm circumferential macroscopic margin. In the last ten years, anatomical considerations in the approach to primary, advanced and untreated tumours of the tongue led us to develop and improve a new surgical approach to their demolition and reconstruction. From July 1999 to July 2009, at the European Institute of Oncology in Milano, Italy, 155 patients were treated, while defining and refining the concept of compartmental tongue surgery (CTS) and its main components: 1) anatomical approach to the disease that requires removal of the primary lesion and all of the potential pathways of progression--muscular, lymphatic and vascular; 2) identification of a distinct territory at risk of metastatic representation of the disease: the parenchymal structures between the primary tumour and the cervical lymphatic chain that include the muscular (mylohyoid), neuro-vascular (lingual nerve and vein) and glandular (sublingual and submandibular) tissues; 3) preparation for a rational reconstruction in consideration of a functional defect resulting from this anatomical demolition.


Subject(s)
Carcinoma, Squamous Cell/pathology , Carcinoma, Squamous Cell/surgery , Plastic Surgery Procedures/methods , Surgical Procedures, Operative/methods , Tongue Neoplasms/pathology , Tongue Neoplasms/surgery , Humans
10.
Int J Biochem Cell Biol ; 34(2): 130-5, 2002 Feb.
Article in English | MEDLINE | ID: mdl-11809415

ABSTRACT

The exon 26A is a rarely expressed human elastin exon that codes for a hydrophilic and charged amino acid sequence. The functional role of elastin containing this additional sequence is unknown. The present investigation was aimed to determine the effect of synthetic peptides derived from this exon on the vascular tone of rat thoracic aorta. On phenilephrine-preconstricted rat thoracic aortic rings the peptides LSPELREGD and REGD cause dose-dependent relaxation in the concentration range from 10(-9) to 10(-5) M. omega-nitro-L-arginine methyl ester, a known inhibitor of the NO synthase, highly inhibits, although to a different extent, the relaxation induced by these peptides. Removal of endothelium and blocking of ATP-sensitive potassium channels by glibenclamide significantly inhibited the vasorelaxant activity of LSPELREGD but not that of REGD, suggesting a different mechanism of action and possibly a different receptor.


Subject(s)
Aorta/drug effects , Elastin/chemistry , Elastin/genetics , Exons/genetics , Muscle, Smooth, Vascular/drug effects , Peptides/pharmacology , 4-Aminopyridine/pharmacology , Animals , Dose-Response Relationship, Drug , Elastin/physiology , Enzyme Inhibitors/pharmacology , Glyburide/pharmacology , Humans , Hypoglycemic Agents/pharmacology , In Vitro Techniques , Lactose/pharmacology , Male , Models, Biological , Muscle, Smooth, Vascular/metabolism , Nitroarginine/pharmacology , Peptides/chemical synthesis , Phenylephrine/pharmacology , Potassium Channel Blockers/pharmacology , Rats , Rats, Wistar , Tolbutamide/pharmacology , Vasoconstrictor Agents/pharmacology , Virulence Factors, Bordetella/pharmacology
11.
Biochemistry ; 37(31): 11128-35, 1998 Aug 04.
Article in English | MEDLINE | ID: mdl-9693009

ABSTRACT

The structural and biological properties of the amino acid sequence coded by the rarely expressed exon 26A of human elastin were investigated. The C-terminal portion of this sequence, corresponding to residues 600-619 of human tropoelastin, REGDPSSSQHLPSTPSSPRV and three shorter derived peptides, LREGDPSS, SSSQHLPS, and LPSTPSSP, were synthesized and studied. Spectroscopic analyses by CD and NMR have identified a type II beta-turn within the sequence REGD of the octapeptide LREGDPSS. This structural motif was found also in the tetrapeptide REGD in both trifluoroethanol and water. The CD spectrum of the tetrapeptide REGD in trifluoroethanol was consistent with a pure type II beta-turn. A high chemotactic activity for monocytes was exhibited by the structured peptides REGD (CI 0.90 at 10(-)7 M) and LREGDPSS (CI 0.80 at 10(-)11 M), at variance with the unfolded peptides LPSTPSSP and SSSQHLPS, suggesting that this activity is strictly correlated with folded structures. Because the exon 26A of human elastin is expressed in the neointima of hypertensive pulmonary arteries, and macrophages are present in this pathologic tissue [Liptay et al. (1993) J. Clin. Invest. 91, 588-594], the chemotactic activity for human monocytes reported in this paper is consistent with an active role played by the exon 26A in inducing the migration of the monocyte/macrophage cells to the neointima.


Subject(s)
Chemotaxis, Leukocyte , Elastin/genetics , Exons , Monocytes/physiology , Protein Structure, Secondary , Amino Acid Sequence , Circular Dichroism , Elastin/biosynthesis , Elastin/physiology , Gene Expression , Humans , Magnetic Resonance Spectroscopy , Models, Molecular , Molecular Sequence Data , Monocytes/drug effects , Oligopeptides/genetics , Oligopeptides/metabolism , Oligopeptides/physiology , Temperature
12.
Int J Biochem Cell Biol ; 30(4): 497-503, 1998 Apr.
Article in English | MEDLINE | ID: mdl-9675883

ABSTRACT

Elastin peptides obtained in vivo from the enzymatic degradation of elastic fibers are present in the circulating human blood. In order to verify the role that these peptides may have in the regulation of the vascular tone, the activity of several peptides identified in the elastolytic digest of human elastin and some of their structural homologues has been tested. Three of these peptides show a vasorelaxant activity in isolated rat aorta precontracted by phenylephrine. The activity observed is higher in the absence of the endothelium; in these conditions the IC50 for the peptides Val-Gly-Val-Ala-Pro-Gly, Val-Gly-Val-Pro-Gly and Val-Gly-Val-Hyp-Gly was 40 +/- 2, 73 +/- 2 and 10 +/- 1 ng/ml, respectively. They are active in the range of the pathological circulating concentration and their role could be important in the regulation of vascular tone during several elastin degradative diseases.


Subject(s)
Aorta, Thoracic/physiology , Elastin/pharmacology , Muscle Relaxation/drug effects , Peptide Fragments/pharmacology , Vasodilation/drug effects , Animals , Aorta, Thoracic/drug effects , Elastin/chemistry , Humans , Male , Phenylephrine/pharmacology , Rats , Rats, Wistar , Vasoconstrictor Agents/pharmacology
13.
Biochem Biophys Res Commun ; 242(2): 385-9, 1998 Jan 14.
Article in English | MEDLINE | ID: mdl-9446804

ABSTRACT

The metal binding properties of a 18-residue zinc finger peptide containing a CCHC box which reproduces one of the cysteine-rich domains of a putative nucleic acid binding protein encoded by the Fw transposable element from Drosophila melanogaster were investigated through electronic and 1H NMR spectroscopy. Dissociation constants of 2(+/- 1) x 10(-12) M and 4(+/- 1) x 10(-7) M were determined for the Zn2+ and Co2+ adduct, respectively. These values are similar to those for other CCHC-peptides investigated previously, although the length of the spacer between the second cysteine and the histidine apparently exerts some influence on the spectral properties and on the stability of the Co(2+)-peptide adduct. The 1H NMR spectrum of the present Co(2+)-derivative contains a number of well resolved hyperfine-shifted resonances between 350 and -50 ppm which arise from the metal binding residues and nearby groups. These peaks can in principle be profitably exploited to monitor protein-nucleic acid interactions.


Subject(s)
DNA-Binding Proteins/chemistry , Drosophila melanogaster/chemistry , Zinc Fingers , Animals , Cobalt/metabolism , Cysteine/chemistry , Cysteine/metabolism , Histidine/chemistry , Histidine/metabolism , Magnetic Resonance Spectroscopy , Metals/metabolism , Peptide Fragments/metabolism , Protein Binding , Spectrophotometry , Zinc/metabolism
14.
J Virol Methods ; 69(1-2): 181-9, 1997 Dec.
Article in English | MEDLINE | ID: mdl-9504763

ABSTRACT

Comparison of the predicted coat protein amino acid sequence of the 'sweet cherry' strain of plum pox potyvirus (PPV-SwC) with the corresponding regions of several other PPV strains indicated that the main differences are in the N-terminal region. Polyclonal antibodies were produced against a synthetic peptide corresponding to the 1-14 sequence of the N-terminal region of PPV-SwC coat protein. They specifically detected PPV-SwC in different immunochemical tests.


Subject(s)
Antibodies, Viral/biosynthesis , Capsid Proteins , Capsid/immunology , Peptide Fragments/immunology , Potyvirus/immunology , Potyvirus/isolation & purification , Amino Acid Sequence , Antibodies, Viral/immunology , Blotting, Western , Capsid/chemistry , Cloning, Molecular , Enzyme-Linked Immunosorbent Assay , Microscopy, Immunoelectron , Molecular Sequence Data , Peptide Fragments/chemical synthesis , Peptide Fragments/chemistry , Plant Diseases/virology , Plant Extracts , Sequence Analysis , Species Specificity
15.
J Photochem Photobiol B ; 20(2-3): 101-11, 1993 Oct.
Article in English | MEDLINE | ID: mdl-8271111

ABSTRACT

To gain some insight into the mechanism by which red light-biosystem interaction occurs, an investigation was made of certain features of purified glutamate dehydrogenase from beef liver (E.C. 1.4.1.3.) irradiated with either an He-Ne laser (632.8 nm) or a red light-emitting diode (650 +/- 20 nm). In both cases the energy dose was 0.24 J cm-2. Significant changes in the glutamate dehydrogenase extinction coefficient measured at 275 nm, the capability of the enzyme to bind the reduced form of nicotinamide adenine dinucleotide (NADH), certain kinetic parameters, the pH and temperature dependence and the sensitivity to guanosine 5 triphosphate (GTP) and adenosine diphosphate (ADP) were found, probably due to the interaction of light with a protein domain containing a metal ion or ions. He-Ne laser and diode irradiation were found to differ with regard to their interaction with glutamate dehydrogenase. Interestingly, different effects were also found when an He-Ne laser and a non-coherent Xe-Hg lamp were used to irradiate glutamate dehydrogenase under the same experimental conditions. This confirms that non-coherent light at various power levels affects the isolated glutamate dehydrogenase.


Subject(s)
Glutamate Dehydrogenase/radiation effects , Adenosine Diphosphate/pharmacology , Chelating Agents/pharmacology , Guanosine Triphosphate/pharmacology , Hot Temperature , Hydrogen-Ion Concentration , Ketoglutaric Acids/metabolism , Light , NAD/metabolism , Oxidation-Reduction , Quaternary Ammonium Compounds/metabolism , Spectrophotometry
17.
Biochem Biophys Res Commun ; 156(2): 978-86, 1988 Oct 31.
Article in English | MEDLINE | ID: mdl-3190685

ABSTRACT

To gain some insight into the mechanism of cell photostimulation by laser light, measurements were made of the rate of ADP/ATP exchange in mitochondria irradiated with the low power continuous wave Helium Neon laser (energy dose 5 Joules/cm2). To do this a method has been developed to continuously monitor ATP efflux from phosphorylating mitochondria caused by externally added ADP, by photometrically following the NADP+ reduction which occurs in the presence of glucose, hexokinase, glucose-6-phosphate dehydrogenase and effluxed ATP. The NADP+ reduction rate shows hyperbolic dependence on ADP concentration (Km and Vmax values 8.5 +/- 0.87 microM and 20.7 +/- 0.49 nmoles NADP+ reduced/min x mg mitochondrial protein, respectively), and proves to measure the activity of the ADP/ATP translocator as shown by inhibition experiments using atracyloside, powerful inhibitor of this carrier. Irradiation was found to enhance the rate of ADP/ATP antiport, with externally added ADP ranging between 5 and 100 microM. As a result of experiments carried out with mitochondria loaded with either ATP or ADP, the increase in the activity of the ADP/ATP translocator is here proposed to depend on the increase in the electrochemical proton gradient which occurs owing to irradiation of mitochondria.


Subject(s)
Adenosine Diphosphate/metabolism , Adenosine Triphosphate/metabolism , Lasers , Mitochondria, Liver/radiation effects , Adenosine Diphosphate/pharmacology , Animals , Atractyloside/pharmacology , Electrochemistry , Glucose/metabolism , Glucosephosphate Dehydrogenase/metabolism , Hexokinase/metabolism , Kinetics , Mitochondria, Liver/drug effects , Mitochondria, Liver/metabolism , NADP/metabolism , Oligomycins/pharmacology , Oxidation-Reduction , Phosphorylation , Rats , Spectrophotometry
18.
Boll Soc Ital Biol Sper ; 57(10): 1127-31, 1981 May 30.
Article in Italian | MEDLINE | ID: mdl-6794580

ABSTRACT

Immunoglobulins (IgG, IgA, IgM) have been measured by radial immunodiffusion method in 43 patients affected with rheumatoid arthritis and treated with d-penicillamine (Pen). Erythrocyte sedimentation rate (ESR), serum alpha 2 and gamma globulins have alos been determined. Serum samples were collected before therapy and after 3 months (43 cases), 6 months (30 cases), 9 months (20 cases), and 12 months (15 cases, respectively). Pen was administered starting from 150 mg/day up to 600-750 mg/day. IgG did not show any significant change, whereas IgA significantly decreased only at 6 month and IgM at every follow-up. During therapy, a decrease in ESR was observed in all determinations, while alpha 2 and gamma globulins showed a reduction at 9 and 12 month follow-up. In rheumatoid arthritis Pen seems to reduce IgM and partially IgA, along with some inflammatory indices. Thus, an inhibitory effect of Pen on immunological reactions is suggested, although a direct breakdown activity on immunoglobulins cannot be excluded.


Subject(s)
Arthritis, Rheumatoid/immunology , Immunoglobulins/metabolism , Penicillamine/therapeutic use , Adult , Aged , Arthritis, Rheumatoid/drug therapy , Female , Humans , Immunodiffusion , Immunoglobulin A/metabolism , Immunoglobulin G/metabolism , Immunoglobulin M/metabolism , Male , Middle Aged
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