Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0019209 (hepatomegaly)
 5,798 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

A 14-month-old baby weighing 4300 g was a giant infant with macroglossia. Exomphalos was not present, but diastasis recti abdominis was observed. The patient was therefore diagnosed as having Beckwith-Wiedemann syndrome (EMG syndrome). Other characteristic signs such as neonatal hypoglycemia, hemihypertrophy, and a small ventricular septal defect were also recognized, but nephromegaly or hepatomegaly was not present. Tongue reduction by wedge resection was performed under general anesthesia. Some of the problems associated with anesthetic management in this syndrome are hypoglycemia, airway obstruction and cardiovascular status. After induction with increasing concentration of halothane (0.5-4.0%) and 66% nitrous oxide in oxygen, a nasotracheal tube was inserted. Endotracheal intubation was easy without using a neuromuscular blocking agent. Anesthetic maintenance was accomplished with nitrous oxide 66% in oxygen and halothane 0.5-1.0% and no neuromuscular blocking agent was used. The plasma glucose level was kept within normal ranges during and after the operation by infusion of acetate Ringer's solution with 5% glucose. The postoperative progress was uneventful.
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PMID:[Anesthetic management for partial tongue resection in a patient with Beckwith-Wiedemann syndrome]. 160 68

It has been previously reported that Polifat KA-02 (fatty acids derived from safflower oil) prevents the pigment cholelithiasis produced by vitamin A in the golden hamster. In order to establish whether the saturation or the unsaturation of Polifat is directly related with its preventive action, in the present study the effect of the hydrogenation of the derivative on this preventive action was tested. Two experiments were carried out in which the animals received the different experimental diets ad libitum during 70 days. In the 1st. experiment the effect of the additions to the lithogenic diet (Rodents Chow + 25,000 UI% of retinol acetate) of 18% of crude safflower oil, or 15% Polifat, or 15% hydrogenated Polifat (approx. 80% saturation) were assayed. In the 2nd. experiment the effect of a more hydrogenated Polifat KA-02 (greater than 99%) was tested. The results of the 1st. experiment showed that the lithogenic diet produced a high incidence (90.5%) of animals with gallstones, which was very similar (100%) to that produced by the crude safflower oil, whereas the additions of normal and hydrogenated Polifat completely prevented the formation of gallstones. The 2 forms of Polifat produced a considerable hepatomegaly. The absorption of vitamin A, measured as total hepatic vitamin A, was higher in the 3 groups that received extra lipids in their diets. The results of the 2nd. experiment fully confirmed the findings related to the hydrogenated Polifat. It is concluded that hydrogenated Polifat KA-02 prevents, as normal Polifat does it, the pigment cholelithiasis in the golden hamster produced by vitamin A.
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PMID:[Biliary calculi in th golden hamster (M. a. auratus). XXXV. Effect of the hydrogenation of Polifat KA-02 on its preventive activity against pigment cholelithiasis]. 248 74

Since prolactin, like the tumor promoter 12-O-tetradecanoyl-phorbol-13-acetate, induces ornithine decarboxylase and plasminogen activator activities, biochemical markers of a trophic response, this hormone might likewise promote neoplasia. To test this theory, rats were initiated with a hepatocarcinogen followed by six weeks of ovine prolactin. This regimen caused hepatomegaly and the development of enzyme-altered foci. Promotion with prolactin for 23 weeks further increased the numbers of enzyme-altered foci. We suggest that prolactin is an endogenous tumor promoter for chemically initiated cells.
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PMID:Prolactin is a tumor promoter in rat liver. 286 49

T-cell chronic lymphocytic leukemia (T-CLL) accounts for about 2% of the various types of CLL and can be subtyped into helper/inducer (h/i) and cytotoxic/suppressor (c/s) cell membrane phenotypes. Seven patients with CLL were shown to have T-CLL with a h/i cell membrane phenotype; four with monoclonal antibody reagents and three by demonstration of the E-rosette receptor and focal acid alpha naphthyl acetate esterase activity. The clinical courses, treatment responses, and laboratory findings of these seven patients were reviewed to determine the prognosis and unique clinicopathologic features of this subtype. Two patients presented with skin rashes, and five were diagnosed during evaluation for other medical problems. Initially, four patients had splenomegaly and two had lymphadenopathy, but none of the patients had hepatomegaly. Morphologic examination revealed uniform, small lymphocytes in three patients, and the lymphocytes had nuclear indentations in four patients. Sera from the three patients tested were negative for antibody to the human T-cell leukemia/lymphoma virus I. Peripheral blood mononuclear cells from one patient showed normal interleukin-2 production and lacked antibody-dependent cell-mediated cellular cytotoxicity and natural killer activity. Cytogenetic analysis was done on one patient, revealing an abnormal clone with several chromosomal abnormalities, including an X;14 translocation with a break point at 14q11. All patients required chemotherapy, and all died a median of 21 months from the time of diagnosis. The findings in these patients, in addition to those in 31 patients described in the literature, indicate that h/i T-CLL is associated with a poor prognosis and has distinct clinical and pathologic features that separate it from c/s T-CLL, adult T-cell leukemia/lymphoma, the cutaneous T-cell lymphomas, and B-CLL.
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PMID:T-cell chronic lymphocytic leukemia with a helper/inducer membrane phenotype: a distinct clinicopathologic subtype with a poor prognosis. 293 74

A series of 3-(1-imidazolyl)chroman-4-ones and 2-(1-imidazolyl)-1-tetralones II, some of their alcohols, and some related compounds were synthesized and tested for hypolipidemic activity. Compounds II, bearing appropriate lipophilic substituents on the phenyl ring, strongly reduced total serum cholesterol while raising high-density lipoprotein cholesterol in diet-induced hypercholesterolemic rats. 3-(1-Imidazolyl)chroman-4-ols and 2-(1-imidazolyl)-1-tetralols corresponding to II retained the hypolipidemic activity while removal of the carbonyl or hydroxy group adjacent to imidazole gave inactive compounds. Although many of the active compounds significantly increased liver weight, the one studied as a model, 6-chloro-3-(1-imidazolyl)-2,3-dihydro-4H-1-benzopyran-4-one (5), caused no peroxisome proliferation. Compound 5 and the corresponding alcohol 40, as representatives of the ketone and alcohol series, showed significant hypolipidemic activity in normolipemic rats. Some of the compounds assayed in cholesterol biosynthesis inhibited acetate incorporation but none inhibited HMG-CoA reductase. 5-Bromo-6-hydroxy-2-(1-imidazolyl)-3,4-dihydro-1(2H)-naphthalenone (38), which showed strong activity but caused little hepatomegaly in the rat, was chosen for further pharmacological evaluation.
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PMID:N-imidazolylchroman-4-ones, N-imidazolyl-1-tetralones, and their alcohols as hypolipemic agents raising high-density lipoproteins. 395 Sep 19

Thirteen cats with diabetes mellitus were evaluated. Clinical signs included polydipsia, polyuria, polyphagia, lethargy, and weight loss. Results of physical examination included obesity, hepatomegaly, mild seborrhea sicca, muscle wasting, and dehydration. One cat walked plantigrade and was suspected of having a diabetic neuropathy. Persistent hyperglycemia, glucosuria, high liver enzyme activities, hypercholesterolemia, hyperproteinemia, and low electrolyte concentrations were the common laboratory findings. In 3 cats diabetes mellitus developed after megestrol acetate therapy; 2 of these cats required only temporary insulin treatment. In a 3rd cat, which had no history of receiving diabetogenic drug therapy, remission of diabetes mellitus also was observed. Serum insulin and plasma glucose concentrations were determined in 6 cats after administration of an intermediate-acting insulin (isophane insulin) and in 3 cats after administration of a long-acting insulin (protamine zinc insulin). The insulin concentration peaked 2 to 6 hours after the injection of intermediate-acting insulin and 6 to 12 hours after the injection of long-acting insulin. The lowest glucose concentration was recorded 4 to 8 hours after injection of intermediate-acting insulin, and 6 to 12 hours after injection of long-acting insulin. It was concluded that, although insulin therapy must be adjusted to the individual, the diabetic cat usually requires twice-daily administration of isophane insulin; however, the protamine zinc insulin can be given once daily for satisfactory control.
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PMID:Insulin therapy in cats with diabetes mellitus. 629 64

Mutations in the Wilson disease gene ATP7B, a P-type ATPase, are responsible for copper accumulation in the liver and other organs leading to Wilson disease (WD, OMIM 277900). Clinical manifestations of Wilson disease (WD) include chronic liver disease, acute hepatic failure or neuropsychiatric diseases. Since potent medical treatments are available to prevent disabling residual symptoms, early diagnosis is crucial. To demonstrate the clinical course and genetic findings, a male patient with a novel mutation in the ATP7B gene, a 10 base pair insertion in exon 6 (1927ins 10), and a second missense mutation in exon 13 (P992L) is reported. The patient presented with signs of chronic liver disease at the age of 10 years. Clinical findings included hepatomegaly, elevated liver enzymes and coagulopathy. A combination treatment with the copper chelating agent D-penicillamine and zinc acetate was started leading to normalization of liver function and no appearance of neurological signs or Kayser-Fleischer ring after 7 years follow-up. Truncating mutations of the ATP7B gene (insertions, deletions, nonsense mutations) leading to gross loss of C-terminal parts of the protein, thereby probably completely destroying the protein function, may correlate with a hepatic phenotype and early onset as seen in the patient presented.
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PMID:Disturbed copper transport in humans. Part 2: mutations of the ATP7B gene lead to Wilson disease (WD). 1193 61

Hyperinsulism is a rare cause of persistent hypoglycemia in the neonatal period. Therapy can be accomplished either surgically or pharmacologically. Diazoxide treatment remains the mainstay of medical therapy. Tolerance of diazoxide is usually excellent, but several adverse effects of this drug have been described. A case of severe diazoxide intoxication with fluid retention, congestive heart failure, and respiratory failure is reported. The patient was a 43-day-old infant, affected by persistent and severe hypoglycemia. After the diagnosis, hyperinsulinism was established he was treated with diazoxide (17 mg x kg(-1) daily) and octreotide (12 microg x kg(-1) daily). A few days later he presented with hepatomegaly, severe fluid retention, diffuse edema, congestive heart failure, and respiratory failure requiring mechanical ventilation. After introduction of ACE inhibitors he developed acute renal failure. The clinical condition worsened and he developed pulmonary hypertension requiring high-frequency oscillatory ventilation. Diazoxide was stopped on the 12th day in spite of poor control of blood sugar. During the next 5 days his hemodynamic status dramatically improved and he was weaned from catecholamines: he lost weight, had a negative fluid balance, and the edema disappeared, a normal diuresis resumed and renal function improved. Improvement of respiratory patterns and gas exchange made it possible to switch back to conventional ventilation and then to extubate the patient. Echocardiography demonstrated reduction of the PA pressure to normal and resolution of atrial enlargement. The patient was scheduled for elective subtotal pancreatectomy. Diagnosis and management of diazoxide intoxication are discussed.
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PMID:A case of severe diazoxide toxicity. 1520 Jun 61

Protein kinase C (PKC)-epsilon, a Ca(2+)-independent, phospholipid-dependent serine/threonine kinase, is among the PKC isoforms expressed in mouse epidermis. We reported that FVB/N transgenic mouse lines that overexpress (8- or 18-fold) PKC-epsilon protein in basal epidermal cells and cells of the hair follicle develop papilloma-independent squamous cell carcinoma (SCC) elicited by 7,12-dimethylbenz(a)anthracene initiation and 12-O-tetradecanoylphorbol-13-acetate-promotion or by repeated ultraviolet radiation exposures. The susceptibility to the development of SCC was proportional to the level of expression of the PKC-epsilon transgene. We now report that PKC-epsilon FVB/N transgenic mice (line 215) that overexpress in epidermis approximately 18-fold PKC-epsilon protein more than their wild-type littermates spontaneously develop a myeloproliferative-like disease (MPD) in 100% of PKC-epsilon transgenic mice. The MPD was characterized by an excess of neutrophils and eosinophils, resulting in invasion of almost all vital organs of the mouse by 6 months of age. On gross examination these mice present with splenomegaly, hepatomegaly, and severe lymphadenopathy. Examination of the bone marrow revealed almost complete effacement by neutrophils, eosinophils, and their precursors. Furthermore, the spleen and lymph nodes were enlarged and exhibited marked extramedullary hematopoiesis. Complete pathological analysis of the second PKC-epsilon transgenic mouse (line 224) that expresses approximately eightfold PKC-epsilon protein more than their wild-type littermates revealed no remarkable findings in any of the affected organs as seen in line 215. However, peripheral blood analyses of PKC-epsilon transgenic mice indicated significant increases of neutrophils in the circulating blood in both PKC-epsilon transgenic lines. To determine whether there was an imbalance of cytokines in PKC-epsilon transgenic mice (line 215), resulting in aberrant myelopoiesis, we analyzed 17 cytokines in the peripheral blood. This analysis indicated that interleukin-5, interleukin-6, and granulocyte-colony stimulating factor were up-regulated as a function of age. The transgene PKC-epsilon was not detected in any of the affected organs (bone marrow, liver, spleen, lung) We suggest that overexpression of PKC-epsilon in the epidermis may lead to the induction of specific cytokines that may, in a paracrine mechanism, perturb normal hematopoiesis in bone marrow resulting in a granulocytic skew toward that of neutrophils and eosinophils. The susceptibility of PKC-epsilon transgenic mice to the induction of SCC and the spontaneous development of MPD are unrelated.
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PMID:Overexpression of protein kinase C-{epsilon} in the mouse epidermis leads to a spontaneous myeloproliferative-like disease. 1563 5

Gaucher disease (GD) is a lysosomal storage disorder characterized by anemia and thrombocytopenia, hepatosplenomegaly, and skeletal involvement. The management of Gaucher disease was improved by the development of enzyme replacement therapy (ERT). However, the bone response to ERT is generally slower compared to other clinical manifestations. Some have recommended the early use of ERT to prevent the development of severe skeletal complications. Because we have access to over 30 untreated patients in Ontario, we questioned the extent to which complications progress in severity over a long period of time. We examined retrospectively the natural history of GD and the extent of skeletal manifestations in 22 untreated type 1 GD adult patients (mean age, 49+/-3.3; range, 20-81 years). The patients were followed for a median of 9.5 years (range, 3-16 years). Hemoglobin (Hb) concentration did not significantly change over time (mean baseline concentration of 12.8+/-0.27 g/dL vs. mean recent concentration of 12.6+/-0.37 g/dL, p=0.65). Mean platelet count also remained relatively stable over time (mean baseline count of 138+/-13x10(9)/L vs. mean recent count of 138.5+/-18x10(9)/L, p=0.98). Mean ferritin and ACE concentrations were elevated and were stable over time. Liver volumes decreased over time (mean baseline liver volume of 1.2xnormal (N) vs. mean recent volume of 1.06xN, p=0.27) and 6 of 22 (27%) patients had moderate hepatomegaly (liver volume, 1.25-2.5xN). Spleen volumes remained stable over time (mean baseline spleen volume of 6.6xN vs. mean recent volume of 5.2xN, p=0.5). None of the changes was statistically significant. Four of 20 (20%) patients had moderate splenomegaly (spleen volume, 5-15xN), 2 of 20 (10%) had marked splenomegaly (spleen volume, >or=15xN), and 2 of 22 (9%) had had splenectomy. The most common skeletal manifestations were infiltration of the bone marrow in 16 of 22 (73%) patients followed by osteopenia in 15 of 22 (68%), Erlenmeyer flask deformity in 13 of 22 (59%), and infarctions in 6 of 22 (27%) patients. We observed that bone disease remained relatively stable over time in most patients, although three patients developed new infarcts over time, one developed an avascular necrosis (AVN), and four had an increase in the degree of osteopenia. Although GD and its skeletal complications progress in severity in some patients, our results suggest that GD complications, including bony disease, may stabilize over time. Therefore, early use of ERT may not be necessary in all type 1 GD patients.
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PMID:The clinical course of untreated Gaucher disease in 22 patients over 10 years: hematological and skeletal manifestations. 1979 65


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