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This brief review of abdominal emergencies is by no means encyclopedic. Indeed, it simply reflects the multiplicity of problems that can occur and suggests the need for a high index of suspicion and an optimistic attitude toward their solution. In addition, the surgeon must keep in mind the fact that cancer patients may also suffer acute abdominal distress from extra-abdominal causes such as pneumonia, myocardial infarction, diabetes mellitus, and hematologic abnormalities such as porphyria or sickle cell anemia. Inflammatory bowel disease, pelvic inflammatory disease, acute hepatitis or other similar problems more commonly seen in general hospital populations may also develop. Consultations for an acute condition of the abdomen in patients receiving marrow-suppressing chemotherapy are challenging problems and repeated examination every few hours is required to detect subtle changes. Hypovolemia, sepsis, confusion and unexplained metabolic acidosis may be the only criteria for surgical exploration. An unnecessary operation in a leukopenic and thrombocytopenic patient is indeed risky, but failure to drain an occult abscess or resect a perforated segment of bowel is always lethal. An additional consideration is the likelihood of response to further treatment of the underlying disease. Unless further effective therapy is unavailable, pessimism is unwarranted.
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PMID:Abdominal emergencies. 31 58

Autoimmune diseases have been studied from the perspective of an abnormal immune response in genetically vulnerable hosts. Although the immune response is responsible for the initiation of autoimmune diseases, the effectors of the disease process likely involves cytokines such as interleukin-1 (IL-1) and tumor necrosis factor (TNF). These polypeptides induce a wide variety of inflammatory events which contribute to the destruction of tissue and tissue remodeling in several autoimmune diseases. Blocking IL-1 with its naturally occurring receptor antagonist, the IL-1 receptor antagonist reduces the severity of disease in animal models of inflammation and autoimmune processes. Clinical studies with the IL-1 receptor antagonist will define the role for this cytokine in the pathogenesis of autoimmune diseases such as arthritis, inflammatory bowel disease, type I diabetes and vasculitis.
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PMID:Interleukin-1 and tumor necrosis factor: effector cytokines in autoimmune diseases. 132 Sep 50

Interleukin-1 (IL-1) is a 17-kDa pro-inflammatory cytokine synthesized from a variety of cell types primarily in association with disease states or during host perturbation such as immune responses. At pM or even fM concentrations, IL-1 triggers various responses in nearly all cells. It appears that there is little or no major role for IL-1 in homoeostatic mechanisms. There are two IL-1's (alpha and beta) each with its distinct sequence; there are two IL-1 receptors. Disease states such as local and systemic infection, septic shock, degenerative arthritis and autoimmune diseases such as nephritis, vasculitis and inflammatory bowel disease appear to be mediated, in part, by IL-1. Organ failure, capillary leak and death occur in animals after a combination of tumour necrosis factor (TNF) and IL-1 which is more effective in inducing these changes than either cytokine alone. IL-1 is also a potent inducer of endothelial cell adhesion molecules, IL-6, and IL-8, a neutrophil chemotactic and activating factor. Strategies for reducing the effects of IL-1 have been based on suppression of transcription, translation, or secretion; more recently, receptor blockade has been a new approach. A naturally occurring IL-1-specific receptor antagonist (IL-1ra), which shares 40% conserved amino-acid homology with IL-1 beta, binds to IL-1 surface receptors with the same affinity as IL-1 but does not possess agonist activity and acts as a competitive inhibitor of IL-1. Studies using the IL-1ra to block endogenous IL-1 in a variety of animal disease models suggest that IL-1 plays a key role in triggering the cascade of inflammatory responses. In addition, the IL-1ra reduces the spontaneous production of growth factors and proliferation of leukaemic cells. The IL-1ra may be an advantageous therapy in patients with sepsis, diabetes, inflammatory bowel, arthritis and cancer.
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PMID:Reduction of inflammation by decreasing production of interleukin-1 or by specific receptor antagonism. 139 23

Mental disorders affect 18% to 20% of children and adolescents. The rate in children with chronic illness is probably higher. This study of chronically ill children addresses the discrepancy between parent and child reports of child psychiatric disorders and the extent to which pediatricians agree with reports by children and parents regarding such problems. Eighty-three subjects, aged 9 to 18 (mean = 12.6), were recruited; they had the following diagnoses: cystic fibrosis, diabetes, inflammatory bowel disease, and cancer. Subjects and one parent were interviewed separately, using the Diagnostic Interview Schedule for Children (DISC-2.1). The subject's physician completed a questionnaire asking about the presence of a range of mental disorders. Forty-one (49%) subjects reached threshold criteria for a psychiatric diagnosis, using both parent and child as informants. Psychiatric disorders were identified in only 22 subjects (54%) by the child and in 28 (68%) by parent alone. Thus, reliance on one informant resulted in failure to identify one third to one half of psychiatric disorders. Physicians' ratings agreed significantly with children's reports but not with parental reports, suggesting that physicians are sensitive to children's concerns but may underestimate the value and importance of parents' reports. Clinical and research evaluations of chronically ill children, as well as clinician identification of mental health problems, will be influenced by the choice of informant.
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PMID:Mental disorders in chronically ill children: parent-child discrepancy and physician identification. 140 41

Interleukin (IL) 1 is an important mediator of local and systemic disease. Blocking IL-1 using the IL-1 receptor antagonist has reduced the severity of disease in animal models of septic shock, diabetes, graft-vs-host disease, inflammatory bowel disease, and the spontaneous proliferation of leukemia cells. Blocking IL-1 and reduction in the synthesis of IL-1 are important strategies for reducing the progression of inflammatory disease and autoimmune diseases. Nature, however, maintains control over the synthesis of IL-1 by dissociating transcription for translation. In this paper, the basis for the dissociation of IL-1 beta synthesis of mRNA from synthesis of the IL-1 beta protein is reviewed.
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PMID:Dissociation of transcription from translation of human IL-1 beta: induction of steady state mRNA by adherence or recombinant C5a in the absence of translation. 153 18

Psychiatric disorders and behaviour problems were found to be commoner in children and adolescents with inflammatory bowel disease (IBD) than in matched comparison groups with tension headache and diabetes as well as in healthy children. Depression, anxiety and low self-esteem were common. Many children denied their problems. This may be due to the type of illness, its social consequences and the embarrassment experienced by the children. Discrepancies were found between the children's and their mothers' replies. These results are discussed in terms of their implication for paediatric practice.
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PMID:Mental health and psychological functioning in children and adolescents with inflammatory bowel disease: a comparison with children having other chronic illnesses and with healthy children. 157 99

Our aim was to analyze the predictive value of a variety of preoperative risk factors on operative outcomes. We reviewed all colorectal resections performed in a single hospital between January 1985 and May 1990. Nine hundred seventy-two resections were performed on 825 patients. We studied 17 preoperative risk factors generated from various medical risk categories. Using the multivariate discriminant function analysis, we calculated that 11 of the 17 risks were of significance in predicting outcomes (all with P less than or equal to 0.031). These factors included emergent operation, age greater than or equal to 75 years, congestive heart failure (CHF), prior abdominal or pelvic radiation therapy, corticosteroid use, albumin less than 2.7 g/dl, chronic obstructive pulmonary disease (COPD), previous myocardial infarction (MI), diabetes, cirrhosis, and renal insufficiency. The classification function generated by the discriminant analysis was used to categorize patients into one of four risk groups depending on their "risk score." The index used to develop each patient's "risk score" ranged from six points for an emergency operation to one point for diabetes. The mortality rates for the various risk groups were as follows: Group 1, zero to four points, 1 percent; Group 2, five to eight points, 10 percent; Group 3, 9 to 13 points, 19 percent; Group 4, greater than 13 points, 33 percent. In contrast to previous reports, we showed that age greater than or equal to 75 years alone is not a major preoperative risk factor but, rather, acts as a modifier for the other predictors of postoperative complications. We then assessed clinical questions concerning specific preoperative risks, such as steroid use, obesity, inflammatory bowel disease, COPD, and prior laparotomy, and their associated specific postoperative complications and have developed prevention strategies based on these findings. Through the use of the risk index, we also were able to assess an individual patient's operative risk more accurately.
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PMID:Multifactorial index of preoperative risk factors in colon resections. 173 12

The aim of the present study was to further elucidate acute and chronic manifestations of Yersinia enterocolitica infection. During the period 1974-83, 458 hospitalized patients were diagnosed by antibody response and/or isolation of the microorganism. 64 patients had suffered from chronic conditions as rheumatic disease, inflammatory bowel disease, hepatitis, nephritis or thyroid disease for some time. Acute hepatic, renal, cardiac, pulmonary, pancreatic or neurologic involvement were observed in a substantial portion of patients; several had multiorgan disease. Acute insulin-dependent diabetes was seen in 2 patients, malignant mesothelioma in 2, and specific lymph node inflammation in 1. The patients were followed for 4-14 years (1987). 36/160 readmitted patients had abdominal pain and 26 had diarrhea; chronic colitis was demonstrated in 4. Some patients developed rheumatic conditions; others developed chronic disease of liver, kidneys, heart, pancreas, thyroid or nervous system. Chronic liver disease, in 22 patients, was correlated with positive tests for antinuclear antibody and rheumatoid factor; and might influence development of malignant disease, and mortality. A variety of acute and chronic clinical pictures may be associated with Y. enterocolitica infection, and further clinical research is required in this field.
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PMID:A survey of acute and chronic disease associated with Yersinia enterocolitica infection. A Norwegian 10-year follow-up study on 458 hospitalized patients. 176 49

We reviewed the medical records of 494 cats with a variety of nonthyroidal diseases in which serum thyroxine (T4) concentration was determined as part of diagnostic evaluation. The cats were grouped by category of disease (ie, renal disease, congestive heart failure, diabetes mellitus, focal neoplasia, systemic neoplasia, hepatopathy, inflammatory bowel disease, inflammatory pulmonary disease, miscellaneous diseases, or undiagnosed disease), degree of illness (ie, mild, moderate, or severe), survival (ie, lived, died, or euthanatized), and presence or absence of a palpable thyroid gland. The mean (+/- SD) serum T4 concentrations in all 10 groups of cats, which ranged from 10.5 +/- 11.1 nmol/L in cats with diabetes mellitus to 18.7 +/- 7.8 nmol/L in cats with focal neoplasia, were significantly (P less than 0.001) lower than those of normal cats (27.0 +/- 10.4 nmol/L). The number of ill cats with low serum T4 concentrations (less than 10 nmol/L) was highest in the cats with diabetes mellitus (59%), hepatopathy (54%), renal failure (48%), and systemic neoplasia (41%). When the serum T4 concentrations in cats with mild, moderate, and severe illness were compared, mean concentrations were progressively lower (21.3 +/- 6.8, 14.8 +/- 8.1, and 6.5 +/- 5.8 nmol/L, respectively) as degree of illness increased. Severity of illness had a more significant (P less than 0.001) effect in lowering serum T4 concentrations than did disease category. Mean serum T4 concentrations in the cats that died (7.8 +/- 9.8 nmol/L) or were euthanatized (10.0 +/- 7.0 nmol/L) were also significantly (P less than 0.001) lower than those of cats that survived (15.2 +/- 8.8 nmol/L).(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:Effect of nonthyroidal illness on serum thyroxine concentrations in cats: 494 cases (1988). 225 53

The frequency of known causative factors of cerebral infarction was studied in 244 cases of first ever stroke due to cerebral infarction proved by computed tomography or at necropsy who were registered in the first two years of a prospective community based study. Risk factors for cerebral infarction were present in 196 (80%) cases; hypertension in 126 (52%); ischaemic heart disease in 92 (38%); peripheral vascular disease in 60 (25%); a cardiac lesion that was a major potential source of embolism to the brain in 50 (20%); transient ischaemic attacks in 35 (14%); cervical arterial bruit in 33 (14%); and diabetes mellitus in 24 (10%). Thirty one patients (13%) were in atrial fibrillation. Of the 48 patients who were free of risk factors or a major potential cardiac source of embolism at the time of the stroke, 18 were found to have hypertension after the stroke and 10 to have non-atheromatous non-embolic conditions (migrainous cerebral infarction (three), arteritis (two), inflammatory bowel disease (one), arterial trauma (one), autoimmune disease (one), carcinoma of the thyroid (one), and major operation (one). In 20 patients no causative factors could be identified. In this unselected series of patients with first ever stroke due to cerebral infarction most of the strokes were presumed to be due to either atheromatous arterial disease or embolism from the heart, and only 4% (95% confidence interval 2 to 7%) were probably due to non-atheromatous non-embolic causes. This has implications for research into strokes and allocation of public health expenditure.
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PMID:Predisposing factors for cerebral infarction: the Oxfordshire community stroke project. 249 1


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