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Query: UMLS:C0019158 (hepatitis)
 30,205 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

A model of acute schistosomiasis of the mouse was used to observe whether curative treatment would be followed by an enhancement of the hepatic and splenic lesions, as a consequence of the massive destruction of worms and eggs within the portal system. Mice infected with 50 cercariae of Schistosoma mansoni were treated with both oxamniquine and praziquantel on the 50th day of infection and submitted to a sequential histologic examination from the 2nd to the 45th day after treatment. Although severe focal lesions due to dead and disintegrating worms were present in the livers of the treated animals, no aggravation of the general changes (reactive hepatitis and splenitis, or periovular granulomas) was seen in comparison with a control non-treated group. Of 50 animals treated during the acute phase of schistosomiasis only one died spontaneously, while 16 out of 30 infected controls died before the end of the experiment. The present investigation indicates that curative treatment during the acute phase of schistosomiasis does not enhance previous lesions at first and results in progressive disappearance of the lesions starting six days following chemotherapy.
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PMID:Treatment of acute experimental schistosomiasis. 248 44

The data obtained point to the aggravation of virus hepatitis A time-course in case of a mixed pathology. This may be due to the state of a certain immune deficiency characteristic of parasitic diseases, including helminthiasis. It is also possible that immune deficiency is an inevitable condition for helminths' existance in the host. This suggestion is supported by the fact of helminthic invasion of virus hepatitis patients.
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PMID:[Clinical and immunological indicators in patient with viral hepatitis A combined with ascariasis]. 275 98

The causes of cholestasis in 276 patients with a total of 296 lesions were studied. Extrahepatic cholestasis was found in 58.4 percent of the patients, and 41.6 percent had intrahepatic cholestasis. Malignant disease was found in 34.8 percent of the patients (extrahepatic cholestasis in 20 and intrahepatic cholestasis in 70). Cholangiocarcinoma, especially the hilar intrahepatic type, seems to be the most prevalent in the medical literature. It is possible that the combination of opisthorchiasis and carcinogenic agents, such as nitrosamines, induce a precancerous stage at the hilar area. Some unknown factors, may be the immune system in immune surveillance that act as a catalyst leading to malignant transformation. Acute calculous cholecystitis, choledocholithiasis, and intrahepatic stones are more common in Thailand than in the western countries, and their causes have been discussed herein. The composition of stones is also different; pigment stones are found more often in Thailand. These differences between the western and oriental types of biliary calculi are significant in regard to diagnostic approach and management, and morbidity and mortality. In Thailand, Opisthorchiasis viverrini has significant influence in the development of several cholestatic diseases, such as hilar intrahepatic cholangiocarcinoma, biliary calculi, opisthorchiatic intrahepatic cysts, and aggregated dead opisthorchiatic worms blocking the biliary system. In tropical countries, infectious diseases such as virus B hepatitis; severe systemic infectious diseases such as salmonellosis; and amebiasis and tuberculosis were also important causes of intrahepatic cholestasis. In the category of congenital anomalies, the prevalence of choledochal cysts was higher than in the United States. The prevalence of other forms of congenital anomalies of the biliary system is unknown, but may be similar to the prevalence of choledochal cysts.
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PMID:Causes of cholestasis in Thailand. A study of 276 consecutive patients. 670 7

We present the first prevalence data of hepatic capillariasis in muskrats in Pennsylvania and Connecticut (USA). The prevalence of hepatic capillariasis in five groups of muskrats coming from different locations and numbering 81, 229, 11, 19, and 20 animals, was 42%, 78%, 36%, 16%, and 0%, respectively. Liver lesions varied from minimal to severe multifocal granulomatous hepatitis, often containing adult worms or eggs.
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PMID:Hepatic capillariasis in muskrats (Ondatra zibethicus). 835 64

The investigation of hypereosinophilias (HE) is a long and complicated process requiring a close collaboration between biologist and clinician physicians. The latter especially will have to provide information on symptoms (association with a fever; a hepatitis) and on the epidemiological history (patient's occupation and country of origin, and/or time and place of the travels or stays out of the European Union). The first step of laboratory investigations consists of making a check blood count, then measuring the sedimentation rate. At the time of the second step, the measurement of total IgE (a concentration greater than 500 IU/ml is often linked to a helminthiasis), that of specific IgE for common inhalant allergens, and three stool examinations using Baermann's technique will be carried out. The request for parasitic serodiagnoses only will be done if the above-cited investigations are negative, and if HE persists after a therapeutic test. A panel of serological tests often needs to be performed. If a helminthic infection is suspected but the immunodiagnostic methods fail, these tests may be required again after a time of a few weeks. At this stage, the measurement of eosinophil cationic protein is useful, since a high level of eosinophil cationic protein is suggestive of non allergic HE.
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PMID:[Value of laboratory findings in the diagnosis of hypereosinophilia]. 1041 Mar 73

Schistosomiasis is one of the main health problems hindering socio-economic development in Egypt. It affects millions at an early age, diminishing productivity and exerting a significant socio-economic impact. Schistosomiasis endemicity in Egypt varies in different areas. Schistosoma mansoni, with a prevalence generally ranging between 20 to 40%, has replaced Schistosoma haematobium in the Nile Delta, and the latter is now localized to upper Egypt with low endemicity levels (5-10%). The pathology of schistosomiasis consists essentially of a series of chronic inflammatory lesions produced in and around blood vessels by eggs or their products and sometimes by dead adult worms. If the ova continued to be deposited in sufficient numbers and over several years, they would ultimately lead to progressive fibrosis of the portal tracts and urinary bladder, or may be carried in blood and become trapped in the lungs, gastro-intestinal and genital tracts with only occasional association with other organs. The etiology of human pipe-stem fibrosis is still not understood. The host immune response and frequency of exposure and the time of re-infection interval appear to be involved in the overall process of fibrosis. Additional factors are probably involved in the human disease as genetic host susceptibility, malnutrition, repeated infections and repeated treatment, mixed infections including hepatitis, tuberculosis and typhoid. Reversibility of the fibrosis might be related to the proportion of the collagen types present. Immuno-histopathological demonstration of various types of collagen confirms the importance of time for administration of the treatment and period of follow-up. According to previous studies, the timing for treatment affects the reversibility of liver fibrosis emphasizing the importance of early treatment of schistosomiasis to prevent complications.
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PMID:Histological assessment of tissue repair after treatment of human schistosomiasis. 1099 24

In our earlier, 30-year follow-up of American prisoners of war (POWs) of World War II and the Korean conflict, we found evidence of increased cirrhosis mortality. Using federal records, we have now extended our follow-up to 50 years (42 years for Korean conflict veterans) and have used proportional hazards analysis to compare the mortality experience of POWs with that of controls. Compared with their controls, World War II POWs had a 32% higher risk of cirrhosis mortality (statistically significant), and mortality risk was higher in the first 30 years of follow-up and also among those aged 51 years and older. Korean POWs had roughly the same risk of cirrhosis mortality as their controls. Neither self-reported data on alcohol consumption nor supplemental morbidity data satisfactorily explained the differences in risk between POWs and controls, although there was evidence that POWs tended to have higher rates of hepatitis, helminthiasis, and nutritional deprivation.
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PMID:Cirrhosis mortality among former American prisoners of war of World War II and the Korean conflict: results of a 50-year follow-up. 1105 Aug 76

The authors present the person of Mikolaj of Poland, a thirteenth century doctor, connected with the Princes of Pomerania and Greater Poland, educated in France, and known from his two major writings, Antipocras (Anti-Hypocrates) and Experimenta. On the background of medieval medicine, the methods of healing he suggested appear as unusual and unconventional. He healed with amulets, mud, dung, river and sea water, frogs, moles, vipers, flies and worms. Using them, he produced powders, pills, ointments and oils which were to have outstanding healing results. They were to be used in lithiasis, skin irritations, nephritis, hepatitis, deafness, epilepsy, and toothache. Women might use them as cosmetics, too. Considering thirteenth century medicine, Mikolaj with no doubts represents medieval medical "empiry", creating an interesting alternative against official standards binding doctors of that time.
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PMID:[Treatment in XIIth c. Poland according to medical writings of Nicholas of Poland]. 1162 40

In order to confirm whether the migrating larvae of parasites could carry pathogenic organisms into liver and cause hepatitis, a series of experiments has been carried out. A. Clonorchis sinensis: Recovery rate of larvae in the abdominal cavity of rabbits: One to seven days after the administration adolescariae were recovered from the abdominal cavity in less than l % of the total number of metacercariae given. Generally, 1~6 larvae were found from each animal which was given 900~1,000 metacercariae, though many larvae were already found in the common bile ducts or remained still in intestine. Fate of Clonorchis sinensis in abdominal cavity: The young or mature worms which were introduced directly into the abdominal cavity were examined l5, 32, 40 and 42 days after the inoculation. Several larvae were found on the surface of liver in four animals. All the worms on the surface of the liver were dead and the biopsied liver tissues on the area where the worms were attached showed no pathological changes. Two of them were between bile duct and liver tissue but pus cell infiltration surrounding them was observed. In every case, pus cell infiltration was found in the peripheral portion of the liver and pus nodules on the surface of intestine and mesentery. The nodule in the intestinal wall contained the eggs of Clonorchis sinensis. Two worms in the abdominal cavity were still alive. From the above results it is suggested that the larvae of Clonorchis sinensis were capable of penetrating the intestinal wall and reaching the organs in the abdominal cavity and surviving for l5~42 days, but they were unable to penetrate the organs. No bacterial flora appeared from the lesion by culture method. Fate of Clonorchis sinensis which was inoculated into the peripheral region of liver: Small abscess was observed at the same area. Microscopically, the area became edematous and the vessels in the peripheral region were dilated. The parasites became necrotic and amorphous. Pathologically the lesions appeared as eosinophilic masses and neutrophile leukocytes were infiltrated surrounding the masses. In some cases, the dead worms were found apart from the original place of inoculation but no leukocyte infiltration was found. There was linear infiltration between the original site and the portion where the dead worm was found. The distance from the capsule varied from 0 to 4 mm. Sometimes, the eggs of Clonorchis sinensis were also found. In all cases, there were no living worms in liver tissues and hepatic ducts. In all case,. the bacteriological examination was negative. Do clonorchis sinensis transfer the microorganism? Five adult worms of clonorchis sinensis were incubated in the saline solution containing Staphylococcus aureus. The intestinal contents of these worms were cultured in the Nutient-agar plate and examined by Methylene Blue and Gram's stain. The area of liver tissue where the Clonorchis sinensis were inoculated showed no inflammatory changes after the 3 days of inoculation but no living Staphylococcus aureus was found in the culture media with which the pieces of liver tissues were smeared. B. Hookworm: Cutaneous infection: Four to eight days after the cutaneous infection of Ancylostoma caninum, the mice were sacrificed. Grossly, there was no abnormal finding in liver. The pieces of liver tissues were smeared on the Nutrient-agar plate, and cocci were found in four out of six examined. The microorganism were confirmed as the same species of Diplococcus pneumoniae which were grown in the hookworm culture media. Oral infection: 1,000 filariform larvae of Ancylostoma caninum were given orally. 24 hours later, the mice were sacrificed and the pieces of liver tissue were smeared on the Nutrient-agar plate. After 50 hours at 36 C, the bacterial colonies were examined bacteriologically. Staphylococcus albus was found from two out of four samples. Grossly there was no abnormality on the surface of liver, but microscopically there were spots like microabscesses which were infiltrated by leukocytes. The larvae were also found from other portions of liver tissues and they were surrounded by yellow colored material. In another experiment, a combination of Ancylostoma duodenale and Staphylococcus aureus was fed to mice. The mice sacrificed five days after the oral administration of Ancylostoma duodenale cultivated in the media containing Staphylococcus aureus. The liver pieces were examined routinely. The larvae cultivated in normal tap water which contained no Staphylococcus aureus was used as control. In the experimental mouse, the cocci appeared in the liver. Pathologically, microabscesses infiltrated with neutrophile leukocytes were found, but there was no manifestation of inflammatory change due to Staphylococcus aureus. There was only mechanical trauma due to the larvae penetration. Haemorrhage appeared only where the larvae were found.
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PMID:[Studies On The Transmissibility Of Pathogenic-Organisms To Liver By Migrating Larvae Of Liver Fluke And Hookworm] 1291 51

We report two cases of gallbladder ascaridiasis associated with acute hepatitis, its clinical evolution with conservative treatment, making diagnosis by both laboratory and ultrasono-graphic studies. Case 1: was a male in his early forties who experienced symptoms of acute hepatitis and cholecystitis within a time lapse of 72 h of evolution. When laboratory tests and ultrasound (US) were done, an ascaris inside gallbladder was corroborated. There were also alterations compatible with acute non-viral hepatitis. Conservative treatment was done with observations within an 8-day period that hepatic examinations were normal as well as absence of helminthus inside gallbladder. Case 2: A 10-year-old female, who expelled worms 8 months previously had 11 days evidence of acute cholecystitis and hepatitis. An ultrasound of liver and biliary tract was done, with evidence of Ascaris lumbricoides inside gallbladder, with alterations in hepatic tests. This was medically treated, achieving expulsion of the Ascaris lumbricoides from inside the gallbladder and normalization of liver function tests. Gallbladder ascaridiasis management may be conservative. Patient general condition must be evaluated, as well or medical evolution and associated pathologies that may interfere in certain ways in surgery. Follow-up of these patients must be strict, with medical evaluation and laboratory controls.
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PMID:[Gallbladder ascariasis with acute hepatitis. Conservative treatment]. 1455 75


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