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Query: UMLS:C0036690 (sepsis)
 59,461 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Retrospective pathology data from necropsies of 162 marmosets, Saguinus oedipus, were studied to determine the nature of chronic wasting syndrome, a poorly defined entity associated with a high mortality rate in many marmoset colonies. Paraffin sections of the gastroenteric organs of 116 of these marmosets were re-examined in detail; lesions were identified, quantitated, and analyzed with a method of multiple chi-square testing for possible associations between findings. Five distinct disease entities were identified: prosthenorchosis, amebiasis, paramyxovirus disease, sepsis, and chronic colitis. Lesions of several of these often occurred in the same monkey, and all but the first were associated with cachexia. Lesions of chronic colitis were crypt abscesses, mononuclear and polymorphonuclear infiltration of the lamina propria, epithelial cell atypia, karyorrhexis, and lymphoid hyperplasia. The cause of chronic colitis was not identified, nor was any explanation found for weight loss and increased susceptibility to disease.
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PMID:An analysis of the association of gastroenteric lesions with chronic wasting syndrome of marmosets. 681 72

The overall mortality rate at the Shriners Burns Institute, Galveston Unit, decreased from 14 per cent in 1966, to 2.8 per cent in 1980. In all, 74.8 per cent of the deaths were associated with sepsis, and pulmonary lesions were the most frequent fatal complications (75.6 per cent). The burn wound was the major source of sepsis (62.7 per cent). Pseudomonas, E. coli, Klebsiella, Candida spp. and Staphylococcus aureus were the most common cultured bacteria. After a new standard fluid resuscitation programme, tangential excision and surgical management of the burn wound sepsis were adopted, the fatalities decreased from an average annual mortality rate of 11.5 per cent in the years 1966-75, to an average annual mortality rate of 2.8 per cent in the period 1976-80. After the routine antacid and milk diet were adopted (1970), the percentage of stomach and duodenal ulcers found at autopsy decreased from 2.0 per cent to 0.8 per cent, and from 3.5 per cent to 0.5 per cent respectively. The morphological alterations in the lymphoid tissue, reflecting a defect in T-cell function and stimulation of B-cell function, were present up to 114 days post burn.
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PMID:A report of 115 consecutive autopsies in burned children: 1966-80. 706 24

Lymphoid system was studied morphologically in 61 infants aged under 1 year dying of sepsis, nonseptic inflammatory diseases and non-inflammatory processes. It was established that in sepsis generalization of the immune response and decompensation of the lymphoid system occurred in the development of which previous disorders of immune responsiveness (thymus pathology, immaturity of the lymphoid system of premature babies, respiratory viral infections) are of great importance. Unlike sepsis, local inflammatory processes are characterized predominantly by limited immune reaction and decompensation of lymphoid system has a local character. In babies of the first month of age reactions of the T-lymphocyte system predominate, in older babies those of the B-lymphocyte system.
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PMID:[Immunomorphologic aspects of sepsis in children under 1-year-old]. 708 93

Morphology of the lymphoid system was studied in 69 fatal cases due to sepsis, 25 due to massive local inflammatory processes and 18 sudden deaths (norm). In contrast to local inflammatory processes, the main feature of sepsis is a generalized reaction of the lymphoid system with signs of immunogenesis decompensation. Decompensation of the afferent part of immunogenesis manifested in glycogenolysis disorders, degenerative and necrotic changes of macrophages, inhibition of phagocytosis is important in the pathogenesis of sepsis. Decompensation of the central and efferent parts in most severe cases of sepsis is manifested in depletion of the lymph nodes and spleen and inhibition of immunoglobulin synthesis. The main issue in the pathogenesis of fulminating meningococcal sepsis is the formation of antigen-antibody immune complexes leading to the involvement of the microcirculatory channel vessels and disseminated intravascular blood coagulation.
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PMID:[Pathogenesis of certain forms of sepsis]. 744 40

In this report, we present a 5 months old male baby, who suffered from watery diarrhea since 4 days old. From then on, he had been admitted 3 times in 3 different hospitals but the symptoms still bothered him off and on. During the days of hospitalization, sepsis with positive blood culture of Klebsiella was noted. The patient expired at 5 months of age. The T cell count was 20% active T was 0. Delayed hypersensitivity skin tests including Candida (10 X), PHA (10 micrograms), PHA (1 microgram), SK/SD (50 units) were negative. The granulocyte function study showed normal. Immunoglobulin analysis revealed IgG: 1320 mg%, IgA: 120 mg%, IgM: 100 mg%. Agenesis of thymus, failure of lymphoid differentiation and abnormal lymphoid architecture with absence of germinal centers were noted at autopsy. Combined immunodeficiency with normal immunoglobulins (Nezelof syndrome) is a disease of primary immunodeficiency characterized by recurrent infections, failure to thrive, lymphopenia, diminished lymphoid tissue, abnormal structure or agenesis of the thymus, and presence of normal or increased levels of one or more of the major immunoglobulin classes, but with impaired antibody synthesis. Since its original description by Nezelof and associates in 1964, it has been reported on the subsequent occasion. In this report, we present our one experience and review the clinical and laboratory data in 33 reported cases.
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PMID:Report of a case of Nezelof syndrome. 744 23

The intestine was one of the first organs to be successfully transplanted experimentally. Results in humans were disappointing until recently, partly due to the large quantity of lymphoid tissue present in the intestine, resulting in a vigorous rejection process which is difficult to control. Recent advances in experimental studies have improved our knowledge about mechanisms of rejection and graft-versus-host disease, and have allowed the development of new immunosuppressive therapies. At the present time, major obstacles remain in clinical intestinal transplantation (i.e. difficulty of preventing rejection despite massive immunosuppression, high rate of postoperative sepsis). However, the protective effect of a concomitant transplanted liver and the use of FK 506 have allowed a dramatic improvement in clinical results, justifying continuation of experimentation of intestinal transplantation in humans.
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PMID:[Small intestine transplantation. Experimental and clinical results]. 750 99

The pathology of lymphoid organs in 38 low birth weight (LBW) human infants has been evaluated by morphological and morphometric features. The gestational ages of infants ranged from 22 to 32 wks and their age at death varied from 1 hr to 153 days post partum. Infants were divided into 3 groups: 1) without antigenic effects, 2) with mild (bronchopneumonia), and 3) with severe antigenic effects, mainly sepsis. In mildly affected LBW infants, the fetal type of the immune reaction was found. It continued during the period studied (till 5 mths) and was manifested in the reaction of macrophages and the transformation of lymphocytes to lymphoblasts. Reactive centres of follicles and mature plasmocytes were not found. During the first months of postnatal development, an increase in the amount of lymphocytes in the lymphoid organs and in the rate of proliferation of reticular epithelium and a decrease in the area of the cortex in the thymus were found in all infants. In severely affected infants, the number and the size of follicles in the spleen decreased significantly and the total number of cells decreased more than 3 times. Similar changes were found in lymph nodes. These changes as well as the weak reaction of the thymus are the main features of the insufficiency and fast devastation of the lymphoid system. A compensatory increase in the number of neutrophils and eosinophils in the red pulp of the spleen and lymph nodes was found after the second week.
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PMID:Pathology of lymphoid organs in low birth weight infants subjected to antigen-related diseases: a morphological and morphometric study. 756 36

Intravascular lymphomatosis (IL), previously called "malignant angioendotheliomatosis", is a rare neoplastic disease in which mononuclear cells, of demonstrated lymphoid origin, proliferate in small blood vessels lumen. Any organ may be involved, standing out general status affectation, skin and central nervous system (CNS) because their frequency. A case of this disease is reported, who presented general impairment with prolonged fever, abdominal pain and cutaneous arborescent telangiectasias as the most significant clinical data. It become fatal in a short time. It was clinically considered to be a sepsis and diagnosis was only obtained in post-mortem study. This study revealed multiple organ infiltration by this neoplasm, with the notable exception of CNS. Immunohistochemical study confirmed the lymphoid origin of neoplastic cells. The main characteristics of IL are reviewed.
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PMID:[Intravascular lymphomatosis. Report of a case and brief review of the disease]. 766 79

Splenic regeneration represents an interesting phenomenon both in relation to its role as a model system (to study the development of the complex three-dimensional architecture of an immunological organ) and because of the clinical application, namely autotransplantation of spleen. The latter is one of the attempts to restore splenic functions after splenectomy, which is known to increase a life-long risk of fatal sepsis. However, splenic functions of autotransplanted splenic tissue are known to be highly dependent on the recovery of the complex microenvironment and immunoarchitecture of the splenic compartments during the regeneration processes, but the elements inducing splenic reorganization are still unknown. Therefore, the present work investigates whether splenic stroma depleted of cells is able to induce regenerative processes after implantation. In addition, we tried to recombine stromal tissue with selected cell populations to study their influence. Cell-free stromal tissue induced angiogenesis and to a lesser extent also attracted the immigration of lymphocytes during the first 60 days of regeneration. However, after this period of regeneration, the transplants began to degenerate and were resorbed. The recombination of stromal tissue with mitogen-stimulated spleen cells only resulted in intensifying the degenerative processes, and all implants were resorbed after 120 days. Except that in the first 30 days there were some accumulations of lymphocytes that resembled primitive follicles, no splenic compartments such as red pulp, periarteriolar lymphoid sheath, or marginal zone could be detected in any of the transplants. From these results it can be concluded that splenic stroma can induce the primary events of splenic regeneration (like angiogenesis), but is not able to provide an appropriate microenvironment and immunoarchitecture for a correct repopulation and differentiation of cells. Furthermore, the recombination experiments point to a minor role of T-cells and possibly an important role for accessory cells in splenic regeneration.
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PMID:Regeneration of splenic stromal elements. 780 Sep 31

In the randomized autopsy material of 161 patients with rheumatoid arthritis (RA), a letal, generalized septic infection (GSI) was observed in 22 cases (13.66%). The GSI was accompanied by a pyarthros in 12 (7.45%) and no pyarthros in 10 (6.21%) cases. The clinical parameters of 22 septic RA patients were compared with 139 age and sex matched RA patients without GSI. The average age of septic patients decreased (p < 0.02), with low serum electrophoretic b-globulin level (p < 0.04), and high Waaler-Rose (p < 0.02) and Latex level (p < 0.004). The clinical parameters of 22 septic patients were compared with 76 age and sex matched RA patients without sepsis, vasculitis, or generalized secondary amyloidosis (GSA), and/or miliary epitheloid granulomas of tuberculous type (mT). The differences between the two groups of patients were the same, with a statistically more pronounced age difference (p < 0.005). 29 out of 161 patients (18.01 %) suffered from a clinically manifest diabetes mellitus (in 6 patients accompanied by sepsis), and 11 (6.83 %) from a clinically latent diabetes mellitus (in 2 patients accompanied by sepsis). There was no significant relationship between sepsis and manifest diabetes mellitus. The controlled and treated diabetes mellitus does not influence the frequency of lethal sepsis. Significant correlations were found between sepsis and latent diabetes mellitus (based on the histological detection of amyloid deposition localized to the islets of Langerhans (p < 0.02). 34 out of 161 patients (21.12%) suffered from a generalized secondary amyloidosis (in 3 patients accompanied by sepsis). There was no significant relationship between sepsis and generalized secondary amyloidosis. The thickness of adrenal cortex represents the effect of steroid therapy. Critical random check, using the Mann-Whitney tests, supports significance relationship between the adrenal cortex atrophy and fatal sepsis (p < 0.010). The follicular lymphoid depletion in the spleen represents the effect of immunosuppressive therapy. The size of lympho-follicles decreased significantly in sepsis (p < 0.004). The long term corticosteroid therapy and immunosuppressive represent a potential danger for sepsis.
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PMID:[Generalized septic infections in rheumatoid arthritis. Study of autopsy material]. 782 86


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