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Query: UMLS:C0010200 (cough)
 23,843 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Chronic experimental Haemophilus somnus pneumonia was produced in five 8- to 12-week-old calves to investigate host-parasite relationships in the respiratory tract. Calves were depressed and pyrexic and coughed intermittently for 3 days and then recovered except for sporadic coughing. Bacteria persisted in the lung for 6 to 10 weeks or more. Immunoglobulin G1 (IgG1), IgG2, and IgM but no IgA antibodies specific for H. somnus were detected in serum. Bronchoalveolar lavage samples contained detectable IgG1, IgG2, IgM, and IgA antibodies specific for H. somnus throughout most of the experiment. The kinetics of the isotypic antibody response against H. somnus in serum and bronchoalveolar lavage fluids differed, suggesting that both local and systemic antibody responses had occurred. Persistence of pulmonary infection for 10 weeks or more in the presence of antibody may be due to an inappropriate distribution of isotypes, toxicity of H. somnus for bovine macrophages, and perhaps other factors. Three of the calves were challenged with a 10-fold-higher dose of H. somnus at 10 weeks after the original inoculation. Immunity against H. somnus was indicated by the rapid clearance of bacteria from the lungs and the presence of minimal pneumonia at necropsy 3 days after bacterial challenge.
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PMID:Pulmonary persistence of Haemophilus somnus in the presence of specific antibody. 276 64

To help develop better diagnostic tests for pertussis, we examined the serologic response to whole-cell proteins of Bordetella pertussis after natural infection or vaccination with diphtheria-tetanus-pertussis vaccine. Serum specimens collected during a pertussis outbreak investigation and from uninfected persons were used in Western blot (immunoblot) analyses to determine the presence of immunoglobulin G (IgG) and IgA antibodies to specific B. pertussis proteins. IgG antibodies to proteins of molecular masses 220 and 210 kilodaltons (kDa) were detected in 14 of 18 serum samples obtained from patients with culture-confirmed pertussis greater than or equal to 40 days after the onset of coughing. IgA antibodies were detected in 15 of the 18 samples. Of 19 serum samples obtained from patients who had not been ill with pertussis, 6 contained IgG antibodies to these proteins and 1 contained IgA antibodies. The two proteins bound antiserum specific for filamentous hemagglutinin and comigrated with purified filamentous hemagglutinin. IgG antibodies to two additional protein bands of molecular masses 84 and 75 kDa were associated with previous vaccination. Antibody to the 84-kDa protein was detected in 15 of 17 vaccinated, never-infected persons, and antibody to the 75-kDa protein was detected in 16 of the 17. None of 11 nonvaccinated, never-infected persons tested had antibodies to either protein. All seven fully vaccinated persons with culture-documented infection had antibodies to both proteins. Antibodies to the 84-kDa protein were detected in 6 of 22 nonvaccinated and infected persons, and antibodies to the 75-kDa protein were detected in 8 of the 22. Use of Western blot analysis in this study allowed us to distinguish antibody responses to infection and immunization.
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PMID:Immunoblot analysis of humoral immune responses following infection with Bordetella pertussis or immunization with diphtheria-tetanus-pertussis vaccine. 290 Aug 46

A 10-year-old boy had gait and speech disturbances 17 days after the initial symptoms of a fever, headache and cough. Four days later he was admitted to a hospital with mild disturbances of gait, speech, writing, visual acuity, left facial nerve, nystagmus and consciousness. Impairments of cranial nerves (II, III and VII), pyramidal sign and cerebellar sign were noticed. EEG showed generalized slow waves. Auditory brain stem response showed prolongation of the interval between I and V waves and poor differentiation between them. Brain CT could not find any abnormalities. Brain stem encephalitis was diagnosed. Clinical signs and symptoms continued for two weeks when steroid therapy was started and it was effective to improve the disease. He was discharged from the hospital without sequelae. Herpes simplex virus (HSV) type 1 was detected from cells in CSF on admission by fluorescence antibody method. HSV antibody titers in sera changed from 1/8 to 1/64 during three months by complement fixation test. Specific IgG and IgA by enzyme linked immunosorbent assay (ELISA) was high in CSF. Specific antibody in CSF/total antibody in CSF: specific antibody in serum/total antibody in serum for IgG and IgA classes were more than 1. Reports of mild type of HSV brain stem encephalitis seemed to be rare. Our case which was followed for several months carefully would be important to discuss.
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PMID:[A mild form of brain stem encephalitis due to herpes simplex virus]. 301 73

Fifty-one children aged 4-12 years, presenting with an acute epidose of chronic rhinosinusitis, were treated for 6 months with either Broncho-Vaxom (BV; marketed in Yugoslavia under the trade mark of Broncho-Munal) or placebo under double-blind randomized conditions. The efficacy of BV was assessed on the basis of clinical symptoms (cough, nasal discharge, congestion of nasal mucosa), number and duration of concomitant treatments (antibiotics, secretolytics, antitussives), number and duration of acute episodes during the trial and serum IgA levels. In BV treated patients the incidence and duration of infectious episodes and the number and duration of concomitant treatments decreased significantly in comparison with the placebo group, and the clinical response correlated positively with an increase in the serum levels of IgA. The results of treatment of acute episodes of chronic rhinosinusitis in children demonstrated the curative and prophylactic efficacy of BV.
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PMID:Broncho-Vaxom in children with rhinosinusitis: a double-blind clinical trial. 306 10

An autopsy case of a 75-year-old female with lymphoid interstitial pneumonia with monoclonal gammopathy of IgA kappa type is reported. The patient was admitted to UOEH Hospital suffering from a cough, sputum and fever. After examining a specimen of transbronchial lung biopsy and chest X ray films, lymphoid interstitial pneumonia was suspected. Serum immunological examination showed monoclonal IgA kappa type hypergammaglobulinemia. Marked clinical and radiological improvement was attained after prednisolone administration. After 16 months, however, the patient deteriorated and expired on January 21, 1986. On postmortem examination, a number of plasma cells as well as lymphoid cells were seen to have infiltrated in the thickened interalveolar septa and the parenchyme of the lymph nodes throughout the whole body. The architecture of lymph nodes remained preserved, while the cortex as well as the medulla was almost completely replaced by plasma cells and lymphoplasmacytoid cells. Immunohistochemical examination demonstrated the presence of IgA kappa in the plasma cells and some of the lymphoplasmacytoid cells in both lymph nodes and lungs. These findings suggest that the proliferating plasma cells and lymphoplasmacytoid cells were in neoplastic or preneoplastic states and support the hypothesis that lymphoid interstitial pneumonia may be an expression of the systemic lymphoproliferative disorders in the lung.
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PMID:[An autopsy case of lymphoid interstitial pneumonia with monoclonal gammopathy]. 311 92

Titers of antibodies to filamentous hemagglutinin (FHA) were determined by enzyme-linked immunosorbent assay in acute and convalescent phase serum samples from 158 patients with clinical symptoms typical of whooping-cough. In 96 of the patients the diagnosis was verified by culture. Significant changes in serum levels of IgG, IgM and/or IgA antibodies against FHA were demonstrated in 126 patients (80%). Thus, demonstration of significant changes in FHA antibody titers in serum can be used for serological diagnosis of pertussis. The results also show that high levels of IgG, IgM and/or IgA antibodies in a single serum sample suggest current pertussis infection, but if the diagnosis is based on determinations of FHA antibody titers in a single serum sample the sensitivity is low. The levels of antibody to FHA were compared with previously determined levels of antibodies to pertussis toxin. A significant antibody response against both FHA and pertussis toxin was seen in 111 patients (70%) while 147 patients (93%) developed a significant increase in antibodies against one or both antigens.
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PMID:Serum antibody response to filamentous hemagglutinin in patients with clinical pertussis measured by an enzyme-linked immunosorbent assay. 314 59

Both upper and lower respiratory tracts can be affected by food allergy. Manifestations in either may be exclusively due to food allergy (common in infants) or may result from the combined effects of food allergy plus another defect such as gastroesophageal reflux, a congenital defect of the heart or tracheo-bronchial tree, an immunodeficiency syndrome such as isolated IgA or IgG4 deficiency, or a concomitant inhalant allergy. Chronic rhinitis is the most common respiratory tract manifestation of food allergy. When it occurs in conjunction with lung disease, it may be a helpful indicator of activity of the allergic lung disease and of the patient's compliance in following a specific diet. Recurrent serous otitis media may be solely or partially due to food allergy. Large tonsillar and adenoid tissues, sometimes with upper airway obstruction, may be caused, or aggravated by, food allergies. Lower respiratory tract disease manifested by chronic coughing, wheezing, pulmonary infiltrates, or alveolar bleeding may also occur. Lower respiratory tract involvement is generally associated with a greater delay in onset of symptoms and with a larger quantity of allergen ingestion than chronic rhinitis. Food allergy should be considered when there is a history of prior intolerance to a food in childhood or of symptoms beginning soon after a particular food was introduced into the diet. It is an important consideration in patients who have chronic respiratory tract disease which does not respond adequately to the usual therapeutic measures and is otherwise unexplained.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:Respiratory diseases and food allergy. 623 77

Igm, IgA and IgG antibodies against Bordetella pertussis were measured by enzyme-linked immunosorbent assay (ELISA) with an ultrasonicate of formalin-killed bacteria (a mixture of strains 1, 2 and 1, 2, 3) as antigen and disposable polystyrene 9-cuvette blocks as the solid phase. The specificity properties of the assay were assessed by an inhibition technique. Of the microbes tested, only B. parapertussis was able to cause a significant inhibition. In addition, IgM and IgA antibodies against B. pertussis were only found in some sporadic cases of respiratory infections caused by other microbes. Sera, nasal swabs and cough plates were received from 198 patients with suspected whooping-cough. ELISA determinations were mostly made from only one serum sample of each patient. Paired sera were studied only from the culture-positive infants under 3 months of age. The number of positive cultures was highest in group under 3 months of age (41%), where the frequency of positive ELISA was lowest (20%). The use of paired sera strikingly increased the number of ELISA-positive individuals in this youngest patient group. In later life, the relationship between these tests changed: isolation was positive in only about 10% of the patients, whereas 29-64% yielded positive titres in ELISA. This study shows that pertussis ELISA is a valuable aid in the rapid diagnosis of pertussis, particularly of the atypical forms of the disease which mostly are culture-negative.
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PMID:Serological diagnosis of pertussis: IgM, IgA and IgG antibodies against Bordetella pertussis measured by enzyme-linked immunosorbent assay (ELISA). 628 49

We have undertaken a double blind placebo controlled study of disodium cromoglycate (DSCG) in 32 symptomatic young smokers. These individuals had regular morning cough and sputum with the sensation of wheeze, but were not asthmatics as determined by the usual criteria. No significant changes were observed in sputum or serum eosinophils, IgE, IgG or IgA, or sputum histamine concentrations following the administration, for 3 weeks, of either DSCG (20 mg) or placebo, thrice daily. However DSCG, but not placebo, was associated with significant improvements in the symptoms of cough (P less than 0.01) and wheezing (P less than 0.025). We suggest that these changes may be due to an effect of DSCG on the irritant receptor mediated reflex response to cigarette smoke rather than the involvement of mast cells.
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PMID:Disodium cromoglycate relieves symptoms in symptomatic young smokers. A double blind placebo controlled trial. 642 92

Acute respiratory tract infections represent the major cause of morbidity in younger age groups. Most of these infections involve the upper respiratory tract. The frequency of respiratory tract infections vary not only with age, but also with season of the year and the epidemiological situation. Surveys of the incidence and aetiology of these infections must therefore cover large populations during relatively long periods of time. In the developed countries, the mortality in respiratory tract infections in patients below the age of 60 years is low, while it increases markedly in elderly patients, mainly due to involvement of the lower respiratory tract. Aetiologically, viral infections dominate but bacterial pathogens often cause pharyngitis/tonsillitis, otitis media and sinusitis. In longstanding cough in children, Branhamella catarrhalis has been found to be a pathogen of probably high significance. Other factors increasing the clinical importance of colonisation of the upper respiratory tract with potentially pathogenic bacterial species, are various immune defects, especially reduced IgA production, and granulocytopenia. In the latter case, Gram-negative bacteria seem to be more pathogenic than Gram-positive ones. The clinical differentiation between viral and bacterial upper respiratory tract infections is difficult and sometimes not possible. However, based on the knowledge that acute tracheitis, laryngitis and common cold are normally caused by viral agents, it seems reasonable not to use antibiotics for those patients.
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PMID:Clinical aspects on bacterial infections in the upper respiratory tract. 658 Jul 30


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