Gene/Protein Disease Symptom Drug Enzyme Compound
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 23,468 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Based on positive results in laboratory animals, chlorpromazine was given a clinical trial in humans to determine if it could reduce fluid losses during cholera. In animals, the chlorpromazine inhibited cholera toxin-stimulated intestinal adenylate cyclase and fluid secretion. Therefore, 11 cholera patients suffering severe diarrhea (360-1340 ml/hour) and vomiting were given either intramuscular chlorpromazine (1 mg/kg or 4 mg/kg) (n=8) or oral chlorpromazine of the same dose (1 mg/kg) (n=3). Overall reduction in stool output of 66% in the treated patients was evident after 32 hours of treatment. The decrease in treated patients was significantly greater than the reduction in nontreated patients (26%) during the same 32-hour course of illness. Patients' comfort was also enhanced by the decrease in nausea and mild sedative qualities of chlorpromazine, and no hypotension was observed in these well-hydrated patients.
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PMID:Chlorpromazine reduces fluid-loss in cholera. 8 63

A point source outbreak of Vibrio cholerae O1 El Tor Inaba infections occurred aboard an oil rig south of Port Arthur, Texas, in September 1981. Sixteen crew members had V. cholerae O1 infections as determined by serology or stool specimens; 15 were symptomatic. The high percentage of symptomatic infections was attributed in part to the ingestion of a large number of V. cholerae O1 organisms by susceptible individuals. Symptoms included diarrheal stools (100%), weakness (60%), abdominal cramps (53%), nausea (40%), and vomiting (27%). Only one of the three patients who sought medical attention was diagnosed by his physician as having cholera. Physicians who treat patients who live near or travel to the Gulf Coast should consider cholera in patients with watery stools. If cholera is suspected, laboratories should use thiosulfate-citrate-bile salts-sucrose (TCBS) agar in addition to routine enteric media for processing stool specimens.
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PMID:Clinical and laboratory features of an outbreak of Vibrio cholerae O1 infections in the United States. 397 22

The efficacy, safety and usefulness of balofloxacin (BLFX) for patients with acute infectious enteritis and the carriers mainly shigellosis, were investigated. The drug was administered at a daily dose of 200 mg twice a day for 3 days to patients with cholera, 7 days to patients with Salmonella enteritis and 5 days to patients with other conditions of infectious enteritis including shigellosis; 1. The efficacy was analyzed in 89 of the 135 patients who received the administration (43 patients with shigellosis, 14 with Salmonella enteritis, 8 with enteropathogenic/ enterotoxigenic Escherichia coli enteritis, 3 with cholera, 7 with enteritis with other pathogenic bacteria, 6 with polymicrobial infectious enteritis and 8 with acute enteritis that was pathogen-negative). 2. In patients bearing symptoms and who thus could be analyzed for drug efficacy, the drug was markedly effective or effective 50/52 (96.2%). 3. Bacteriologically, the drug was effective for Shigella spp. in 41 (100%) of 41, Salmonella spp. in 12 (85.7%) of 14, and enteropathogenic/enterotoxigenic Escherichia coli in 8 of 8 cases. 4. Adverse effects were seen in 5/133 patients (3.8%) receiving the drug, including two cases of skin eruption, one of the numbness of the hands, one of oral aphtha, and one of nausea. In patients for whom laboratory findings were available, 20/115 (17.4%) showed abnormalities, mainly elevations of GOT and/or GPT, but these were slight. 5. In terms of subjective reports of usefulness, 51/82 (62.2%) were markedly satisfied, and 73/82 (89.0%) were either satisfied or markedly satisfied. 6. The influence of administration of BLFX on fecal concentration and intestinal microbial flora was investigated in 2 patients with acute infectious enteritis. Results approximately equivalent to such flora levels in healthy subjects were obtained. These results suggest that BLFX is highly useful for infectious enteritis such as that caused by shigellosis.
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PMID:[clinical study of balofloxacin on infectious enteritis and assessment of the fecal drug concentration and intestinal microbial flora in patients with inpatients with infectious enteritis. Research group of balofloxacin on infectious enteritis]. 759 1

Five types of Escherichia coli are responsible for as much as 25% of all diarrheal diseases in developing countries. They tend to be transmitted via contaminated foods, particularly weaning foods, and water. They include enterotoxigenic, enteropathogenic, enteroadherent, enteroinvasive, and enterohemorrhagic E. coli. Shigella species are responsible for 10-15% of acute diarrheas in children less than 5 years old and the most common etiologic agents of childhood dysentery. Shigellosis is common in the warm season. An outbreak of shigella dysentery in West Bengal, India, had a high attack rate in children less than 5 years old and was resistant to many drugs. Nontyphoid Salmonella species cause watery diarrhea with nausea, cramps, and fever. Worldwide, various Salmonella strains exhibit resistance to ampicillin, chloramphenicol, and co-trimoxazole. Campylobacter jejuni produces watery diarrhea which, in 33% of cases and 1-2 days after onset, contains blood and mucus. Many normal healthy children in developing countries are carriers of C. jejuni. Vibrio cholerae O1 is endemic in parts of Africa and Asia (e.g., 5-10% of hospitalized diarrhea patients). The ElTor cholera biotype is responsible for the 7th pandemic. Other bacterial enteropathogens are Aeromonas species, Bacteroides fragilis, and Providencia alcalifaciens. Rotavirus is a major cause of sporadic and epidemic diarrhea among 6-23 month olds. Its incidence peaks in cold or dry seasons. Other viral enteropathogens are Norwalk virus, adenoviruses, astroviruses, and coronaviruses. In India, the prevalence of Entamoeba histolytica varies from 3.6% to 47.4%. It occurs equally in high and low socioeconomic classes. Giardia lamblia usually infects 1-5 year old children. Its transmission routes are food, water, and the fecal-oral route. Cryptosporidia produce acute watery diarrhea, especially in children less than 2 years old. Cryptosporidia diarrhea is common among AIDS patients. Oral rehydration therapy and proper feeding during and after diarrhea reduces deaths from diarrhea.
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PMID:Enteropathogens associated with acute diarrhoeal diseases. 783 92

A 58-year-old man with diabetes had fever and chills 5 days after ingestion of raw seafood. Nausea, vomiting, watery diarrhea, bilateral calf pain, and neck stiffness subsequently developed. Generalized edema and ecchymotic patches with a vesiculobullous eruption appeared on the extremities. Four blood cultures were positive for Vibrio cholerae non-01. The patient was successfully treated with antibiotics. This is the first documented case of V. cholerae non-01 septicemia with cutaneous lesions and meningitis in Taiwan.
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PMID:Cutaneous manifestations of non-01 Vibrio cholerae septicemia with gastroenteritis and meningitis. 815 89

An outbreak of diarrhea due to infection with Cryptosporidium occurred among the staff members and customers who visited one of the 10 public houses or a dancing school in a building in Hiratsuka, Kanagawa Prefecture, at the end of summer in 1994. The epidemiological surveys by a questionnaire revealed that 461 out of 736 persons investigated complained of cholera-like or flu-like illness. The clinical manifestations included mucous and/or watery diarrhea (96.7%), abdominal pain (61.6%), fever (54.2%: lower than 39 degrees C = 84.1%, higher than 39 degrees C = 15.9%), malaise (37.1%), nausea (32.8%) and headache (29.3%). The polluted drinking water was strongly suspected to be the immediate cause of infection. Although several species of pathogenic bacteria were isolated both from stool and water samples, they were not supposed to be linked to the outbreak. No known enteropathogenic virus was found in either of the samples. Oocysts of Cryptosporidium parvum were identified in 12 (48.0%) of the 25 stool samples. The oocysts were also found in tap water and other water samples from a receiving tank which was directly connected with the public waterworks, and an elevated tank on the roof, a wastewater pits, a soil pit and artesianspring water tank. These tanks and pits except for the elevated tank were built adjucent to each other on an underground floor of the building. These tanks and pits were connected with openings in the upperpart of the tank walls. These openings might have functioned to discharge excess of drinking water in the receiving tank to the wastewater pit. The water level of the wastewater pit is kept down below the openings by pumping out the sanitary sewage to the public drain. According to the declaration of the owner of the building, however, the wastewater pump was broken at the time of outbreak. Accidental malfunction of the drainage system caused contamination of drinking water with sanitary sewage through the connecting pipes.
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PMID:[An outbreak of waterborne Cryptosporidiosis in Kanagawa, Japan]. 885 85

The goal of the present study was to evaluate the tolerability and acceptability of an oral cholera vaccine (CVD103HgR) in individuals preparing for travel to countries endemic for cholera. 2545 Austrian travelers between 6 months and 81.5 years of age received a single dose of CVD103HgR and were asked to complete a questionnaire for documentation of adverse events during a 7 day period post immunization. Events were recorded regardless of whether they were caused by concomitant vaccinations or other factors and thus, a causative relationship was not necessarily present. Despite this drawback and the possibility of overreporting this study has proven a low frequency in side effects and the good tolerability of CVD103HgR. Occasional gastrointestinal side effects (15% diarrhea, 8.1% nausea, 1.1% vomiting) were seen and were of mild character and probably a consequence of associated intake of sodium bicarbonate buffer. Other events (7% skin eruptions, 2.7% fever) were mild and considered as harmless (or not vaccine related). The results show that the oral cholera vaccine CVD103HgR was well tolerated and accepted by travelers.
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PMID:Adverse events after oral vaccination against cholera with CVD103-HgR. 965 93

We report a case of a 53-year-old male with Vibrio cholerae non-O1 (serotype O19) infection, resulting in perforative pan-peritonitis. The patient had a history of gastric cancer and a gastrectomy was performed one year prior. The patient had previously been admitted with nausea and vomiting and was diagnosed with a sub-ileus condition. He was provisionally discharged when his condition improved and during that period he ate raw fish caught locally in Nagasaki Prefecture, and several hours later he experienced a sudden onset of severe abdominal pain and nausea and on diagnosis of pan-peritonitis an emergency resection of the transverse colon was performed. We subsequently isolated Vibrio cholerae non-O1 from the patient's peritoneal fluid and stool. He died of multiple organ failure three weeks later despite intensive chemotherapeutic care and treatment for shock and disseminated intravascular coagulation. The strain of Vibrio cholerae non-O1 isolated was non-toxigenic but hemolytic with hyper-producing of metalloprotease.
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PMID:[The characterization of Vibrio cholerae non-O1 strain causing perforative pan-peritonitis]. 1155 33

We provide a global assessment, with detailed multi-scale data, of the ecological and toxicological effects generated by inorganic nitrogen pollution in aquatic ecosystems. Our synthesis of the published scientific literature shows three major environmental problems: (1) it can increase the concentration of hydrogen ions in freshwater ecosystems without much acid-neutralizing capacity, resulting in acidification of those systems; (2) it can stimulate or enhance the development, maintenance and proliferation of primary producers, resulting in eutrophication of aquatic ecosystems; (3) it can reach toxic levels that impair the ability of aquatic animals to survive, grow and reproduce. Inorganic nitrogen pollution of ground and surface waters can also induce adverse effects on human health and economy. Because reductions in SO2 emissions have reduced the atmospheric deposition of H2SO4 across large portions of North America and Europe, while emissions of NOx have gone unchecked, HNO3 is now playing an increasing role in the acidification of freshwater ecosystems. This acidification process has caused several adverse effects on primary and secondary producers, with significant biotic impoverishments, particularly concerning invertebrates and fishes, in many atmospherically acidified lakes and streams. The cultural eutrophication of freshwater, estuarine, and coastal marine ecosystems can cause ecological and toxicological effects that are either directly or indirectly related to the proliferation of primary producers. Extensive kills of both invertebrates and fishes are probably the most dramatic manifestation of hypoxia (or anoxia) in eutrophic and hypereutrophic aquatic ecosystems with low water turnover rates. The decline in dissolved oxygen concentrations can also promote the formation of reduced compounds, such as hydrogen sulphide, resulting in higher adverse (toxic) effects on aquatic animals. Additionally, the occurrence of toxic algae can significantly contribute to the extensive kills of aquatic animals. Cyanobacteria, dinoflagellates and diatoms appear to be major responsible that may be stimulated by inorganic nitrogen pollution. Among the different inorganic nitrogenous compounds (NH4+, NH3, NO2-, HNO2NO3-) that aquatic animals can take up directly from the ambient water, unionized ammonia is the most toxic, while ammonium and nitrate ions are the least toxic. In general, seawater animals seem to be more tolerant to the toxicity of inorganic nitrogenous compounds than freshwater animals, probably because of the ameliorating effect of water salinity (sodium, chloride, calcium and other ions) on the tolerance of aquatic animals. Ingested nitrites and nitrates from polluted drinking waters can induce methemoglobinemia in humans, particularly in young infants, by blocking the oxygen-carrying capacity of hemoglobin. Ingested nitrites and nitrates also have a potential role in developing cancers of the digestive tract through their contribution to the formation of nitrosamines. In addition, some scientific evidences suggest that ingested nitrites and nitrates might result in mutagenicity, teratogenicity and birth defects, contribute to the risks of non-Hodgkin's lymphoma and bladder and ovarian cancers, play a role in the etiology of insulin-dependent diabetes mellitus and in the development of thyroid hypertrophy, or cause spontaneous abortions and respiratory tract infections. Indirect health hazards can occur as a consequence of algal toxins, causing nausea, vomiting, diarrhoea, pneumonia, gastroenteritis, hepatoenteritis, muscular cramps, and several poisoning syndromes (paralytic shellfish poisoning, neurotoxic shellfish poisoning, amnesic shellfish poisoning). Other indirect health hazards can also come from the potential relationship between inorganic nitrogen pollution and human infectious diseases (malaria, cholera). Human sickness and death, extensive kills of aquatic animals, and other negative effects, can have elevated costs on human economy, with the recreation and tourism industry suffering the most important economic impacts, at least locally. It is concluded that levels of total nitrogen lower than 0.5-1.0 mg TN/L could prevent aquatic ecosystems (excluding those ecosystems with naturally high N levels) from developing acidification and eutrophication, at least by inorganic nitrogen pollution. Those relatively low TN levels could also protect aquatic animals against the toxicity of inorganic nitrogenous compounds since, in the absence of eutrophication, surface waters usually present relatively high concentrations of dissolved oxygen, most inorganic reactive nitrogen being in the form of nitrate. Additionally, human health and economy would be safer from the adverse effects of inorganic nitrogen pollution.
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PMID:Ecological and toxicological effects of inorganic nitrogen pollution in aquatic ecosystems: A global assessment. 1678 74

Doxycycline is a semi-synthetic derivative of tetracycline family exhibiting an interesting pharmacokinetic profile since no dosage adjustment is required for renal failure. Doxycycline displays good bacteriostatic activity against most bacteria as well as anti-inflammatory activity. Bacterial resistance is mainly acquired. Many infectious diseases can be treated with doxycycline including brucellosis, pasteurellosis, borreliosis, rickettsioses, trepanomatosis, cholera, leptospirosis, Q fever, pulmonary and urinary infections due to Chlamydia and Mycoplasma, gonococcia, and anthrax. Doxycycline also prevents development of Plasmodium in the blood and is thus useful for malaria prophylaxis. In dermatology, doxycycline is indicated for acnea and rosacea. Doxycycline is well tolerated. The most frequent adverse effects are stomach upset, nausea, and diarrhea, but new formulations that reduce these manifestations are now available. Phototoxicity is dose-dependant and other side effects are rare. Like other tetracylines, doxycycline is contraindicated in children, pregnant women after the second trimester, and breast-feeding mothers.
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PMID:[Doxycycline]. 2009 67


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