What's the difference between scleroderma and xeroderma?
Scleroderma
Definition:
(n.) A disease of adults, characterized by a diffuse rigidity and hardness of the skin.
Example Sentences:
(1) Immunofluorescent staining for HLA-DR showed dermal positivity in 12 of 13 involved- and 9 of 13 uninvolved-skin biopsy specimens from scleroderma patients, compared with only 1 of 10 controls.
(2) In the German Democratic Republic, patients with scleroderma and history of long term silica exposure are recognized as patients with occupational disease even though pneumoconiosis is not clearly demonstrated on X-ray film.
(3) Type II includes the Sjögren's syndrome, rhumatoid arthritis, primary biliary cirrhosis, scleroderma and autoimmune thyroid disorders.
(4) Here we present a case of systemic scleroderma with unilateral enophthalmos.
(5) A patient with scleroderma of recent onset was found to have a carcinoma of the oesophagus.
(6) It is not influenced by previous soft tissue damage induced by linear scleroderma and may enable better monitoring of the effectiveness of proposed therapies.
(7) The pathologic findings in this new case were scleroderma-like skin atrophy, arteriosclerosis, and atrophy of the endocrine glands (including the genital organs).
(8) Two hundred and thirty-seven patients with systemic sclerosis were followed prospectively in a scleroderma clinic.
(9) She had photosensitive skin of early onset, hypertrichosis, and severe scleroderma-like lesions of the hands.
(10) This family constitutes the first record of the familial coexistence of the CRST syndrome with Sjögren's syndrome, and the second evidence of vertical inheritance of scleroderma.
(11) Scleroderma should be considered in the diagnostic evaluation of joint contractures.
(12) Methods are described that are used for the titration of antinuclear, anticentromere, and anti-Scl-70 antibodies in systemic scleroderma, systemic lupus erythematosus, and rheumatoid arthritis: indirect immunofluorescence with various antigenic substrates (sections of fresh-frozen rat liver and Hep-2 cell culture), counter-current immunoelectrophoresis, isolation of Scl-70 antigen.
(13) In vivo capillaroscopic examination was performed on patients with localized scleroderma to determine whether nailfold capillary abnormalities seen in systemic scleroderma (systemic sclerosis) were also present in the localized form.
(14) Fibromyalgia patients reported significantly higher levels of learned helplessness, assessed according to a rheumatology attitudes index (RAI), than patients with all other diseases, and scleroderma patients showed significantly lower RAI scores (P less than 0.05).
(15) Six scleroderma patients had abnormal indices, two of whom had high titre ribonucleoprotein antibody.
(16) These data may indicate that intrinsic upregulation of extracellular matrix genes in scleroderma fibroblasts utilizes a TGF beta dependent pathway.
(17) In a previous paper, we have found, at post-mortem examination of three cases of scleroderma, the oesophageal smooth muscle alterations already predicted by physiologists and reported by Treacy.
(18) Pulmonary involvement was significantly more frequent in nucleolar + homogeneous FANA positive patients; moreover, in two cases the same pattern proved to predict the development of diffuse scleroderma.
(19) Only pregnancies occurring before symptom onset in the scleroderma group were considered for analysis.
(20) The haemodynamic data recorded from one patient suggested that pericardial fibrosis in scleroderma may predispose to pericardial tamponade.
Xeroderma
Definition:
(n.) Ichthyosis.
(n.) A skin disease characterized by the presence of numerous small pigmented spots resembling freckles, with which are subsequently mingled spots of atrophied skin.
Example Sentences:
(1) The SCE frequencies of xeroderma pigmentosum (XP12RO) and normal human lymphoblastoid cell lines were also found to be unaffected by Na2SeO3 concentrations that produced elevated SCE frequencies in whole blood cultures.
(2) Fetal autopsy case of xeroderma pigmentosum was reported.
(3) The cytogenetic study of a case of cutaneous squamous cell carcinoma developed in a child affected by xeroderma pigmentosum is described.
(4) Dysplastic naevus syndrome (DNS) is frequently observed in association with familial melanoma and xeroderma pigmentosum (XP), but the role of UV-light in the development of DNS has not been elucidated.
(5) The data indicate that the repair of lesions induced by these substances may have common rate-limiting steps, a conclusion previously indicated by the repair deficiency in xeroderma pigmentosum cells in which a single mutation eliminates the repair of damage caused by each of these agents.
(6) Skin phototesting and cellular sensitivity studies were performed in a patient with xeroderma pigmentosum (XP) complementation group E (XP80TO) at the ages of 50 and 55 years.
(7) Include is a discussion of xeroderma pigmentosum, ataxia-telangiectasia.
(8) This phenomenon is also displayed by xeroderma pigmentosum cells (complementation groups A and F), which are deficient in the excision repair of UV-induced pyrimidine dimers in the DNA.
(9) This syndrome is related to xeroderma pigmentosum complementation group D but differs from it in the absence of skin tumors, at least in the first two decades of life.
(10) Diploid xeroderma pigmentosum (XP) skin fibroblast strains from various XP-complementation groups (B, C, G, and H) were transformed with an origin-defective SV40 early region or with the pSV3 gpt plasmid.
(11) We studied the UV-sensitivity of cultured fibroblast cells derived from these PMD cases, as compared with UV-sensitive Cockayne syndrome (CS) and xeroderma pigmentosum (XP) cells as positive controls.
(12) A genetic model for some cases of excision-deficient xeroderma pigmentosum (XP) is proposed in which the trait (i.e., XP) is expressed if and only if the individual is homozygous or hemizygous for defective alleles at more than one of a specific set of loci.
(13) Patients suffering from the genetic disorder xeroderma pigmentosum (XP) display an extreme sensitivity of their skin to sun (UV) exposure and predisposition to skin cancer due to deficiencies in the excision DNA repair pathway.
(14) The xeroderma cells were competent in their ability to excise 3-methyl adenine adducts.
(15) An apparent linear dose response within the dose range used was observed for UV-induced mutations in both normal and xeroderma pigmentosum fibroblasts.
(16) A 43-year-old man with xeroderma pigmentosum, XP97TO, was allocated to complementation group D. He had had moderate photosensitivity at age 1 year and freckles by age 6 but no neurologic abnormalities.
(17) Extracts from xeroderma pigmentosum (XP) cells are defective in repair synthesis.
(18) No discernible difference could be detected between the fluence-response curves of pyrimidine dimers for untreated and MMC-treated repair-deficient xeroderma pigmentosum cells of group A.
(19) inactivation of transient expression of the bacterial gpt gene contained in a non-replicating expression vector plasmid, pSV2catSVgpt, was much greater in three xeroderma pigmentosum lines than in the four other human cell lines tested.
(20) This activity is absent in xeroderma pigmentosum group A cells.