Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0017536 (giardiasis)
 1,714 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Certain enteric ailments are particularly common among homosexual men. They are primarily infectious diseases and include not only such common venereal diseases as gonorrhea and syphilis but also infections not usually regarded as being sexually transmitted. Among the latter are shigellosis, salmonellosis, giardiasis, and amebiasis. Patients' symptoms are non-specific and seldom helpful in diagnosing particular diseases. The practitioner must be prepared to identify a number of infections with similar presentations that may occur singly or together in gay men. Gonorrhea is probably the most common bacterial infection in gay men. Carriage rates as high as 50% have been reported, and extra-genital carriage is common; this necessitates culturing the urethra, rectum, and pharynx. Procaine penicillin G is the treatment of choice for most patients; spectinomycin is probably the drug of choice in penicillin-sensitive patients. In contrast to other venereal diseases, syphilis may have a characteristic protoscopic presentation. Benzathine penicillin G is the treatment of choice for most patients. Lymphogranuloma venereum causes penile lesions and inguinal lymphadenitis in heterosexual men, whereas homosexual men are more prone to proctitis. The disease may mimic Crohn's disease. Recommended treatment includes tetracycline or sulfamethoxazole-trimethoprim. Shigellosis usually presents as an acute diarrheal illness. Patients generally require only supportive treatment with fluids. Herpes simplex viral infection is difficult to diagnose and has several different presentations, including lumbosacral radiculomyelopathy. Symptomatic treatment with sitz baths, anesthetic ointment, and analgesics is recommended. Venereal warts are believed to be caused by the same virus that causes verrucous warts; they are usually found in the anal canal or around the anal orifice. They are commonly treated with 25% podophyllin solution. Parasitic infections include giardiasis, amebiasis, and pinworm infections. Metronidazole may be used in the treatment of symptomatic giardiasis and amebiasis, but it is not approved for the former indication; quinacrine is approved for giardiasis. Pinworm infestation may be treated with pyrantel pamoate or mebendazole. Cure of enteric diseases in homosexual men must be documented.
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PMID:Enteric diseases of homosexual men. 676 90

The prevalence of most sexually transmitted diseases is disproportionately increased in gay men and paradoxically decreased in lesbian women. The spectrum of diseases seen in gay men include a variety of enteric infections including hepatitis A, shigellosis, salmonellosis, Campylobacter enteritis, amebiasis, giardiasis, and enterobiasis as well as the more common sexually transmitted diseases. Hepatitis B is endemic in gay male populations. The patterns of sexual behavior are the major factors contributing to this unique epidemiology and pathology. Increased sexual activity explained by the unrestrained cultural expectation of maleness, the functional overlap during sex between the genital-urinary and gastrointestinal systems, and anonymous sexual activity are all significant epidemiologic components.
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PMID:Hepatitis and other sexually transmitted diseases in gay men and in lesbians. 689 98

Cryptococcosis is an epidemiological and immunological indicator due to the absence of Cryptococcus neoformans as a saprophyte in immunocompetent humans and the advantage of specific C. neoformans culture. On this basis, a report is presented on the CD4 lymphocyte count of 36 AIDS patients suffering from cryptococcosis and other concomitant or missing opportunistic AIDS-defining infections. In 26 out of 36 patients, i.e. 72%, a CD4 lymphocyte count of < or = 50/microL (mean value 39.5%) was found. Cryptococcosis as the sole opportunistic infection was diagnosed in 5 cases (13.9%). In 31 cases, various combinations of AIDS-associated diseases were found: Pneumocystis carinii pneumonia (PCP) (n = 19), cytomegalovirus infection (CMV) (n = 10), Kaposi's sarcoma (n = 6), Mycobacterium avium intracellulare infection (MAI) (n = 5), pneumonia (n = 2), toxoplasmosis (n = 2), Candida esophagitis (n = 1), tuberculosis (n = 1), lambliasis (n = 1), salmonellosis (n = 1) and wasting syndrome (n = 5). The conspicuous simultaneous occurrence or succession of pneumocystosis and cryptococcosis and the contrasting absence of aspergillosis and mucormycosis (zygomycosis) are commented. Based on the present observations in HIV-infected persons in Berlin, a CD4 lymphocyte count of < 150/microL may be used as a parameter indicating a predisposition for cryptococcosis as an airborne AIDS-defining infection. Attention is drawn to bird droppings as the sole habitat of C. neoformans and accidental niche of various other microorganisms.
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PMID:Cryptococcosis in HIV infection of man: an epidemiological and immunological indicator? 883 78

In the year 2100 a global mean temperature increase of 2 degrees C, and a 50 cm rise in sea level are expected. An escalation in the intensity and duration of heat waves will increase mortality, whilst higher temperatures in cold regions may reduce it. On a global scale, vector-borne diseases such as malaria, dengue, yellow fever and some types of viral encephalitis are likely to increase. 50 to 80 million more cases of malaria could occur annually. Elevated temperatures and more frequent floods could cause an increase in salmonellosis, cholera and giardiasis. Indirectly, shortages of freshwater and foods may cause serious health problems. The world may see more environmental refugees. For Norway a temperature increase of 3-4 degrees C during winter and 2 degrees C in summer is expected, with more precipitation, especially in western parts. The possibility of the Gulf Stream turning at 40 degrees N and causing a temperature decrease of 10 degrees C, is not very likely. Malaria could reestablish itself in Europe, but hardly in Norway. The most harmful arthropod vector in Norway, the tick Ixodes ricinus, might extend its range into the most populated parts of the country. Marine algal blooms might increase the risk of cholera. Health problems caused by greater floods, poisonous algae and certain freshwater cercaria might increase.
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PMID:[Health effects of climatic changes--possible consequences for Norway]. 906 11

In Togo, livestock represent an important part of the national and subsistence economies. The most prevalent zoonoses documented in Toga are brucellosis, tuberculosis, cysticercosis and rabies. The status of other zoonoses such as toxoplasmosis, giardiasis, cryptosporidiosis and salmonellosis is not known. A national eradication programme has been instigated to reduce the transmission of rabies. Good relations exist between veterinary and health personnel in the field but this level of interaction is absent at district and national level. This has resulted in information not being transferred between the two disciplines and the lack of a national strategy for the eradication of zoonoses in Togo.
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PMID:Current status of some zoonoses in Togo. 1091 69

The use of wastewater and excreta in agriculture constitutes an important source of spread Salmonella strains and protozoan infections into the environment. This practice has been used in El Azzouzia (the wastewater-spreading area of Marrakesh city, Morocco) for several years. The available circumstantial evidence gained from epidemiological and microbiological investigations suggests that the use of untreated wastewater causes an excess of protozoan infections among children living in El Azzouzia (72%) compared with those from a control area (45%). The pathogenic protozoan infections observed were giardiasis (39%) and amoebiasis (28%). For Salmonella infection, 21.34% of the exposed children were infected, while this rate did not exceed 1.14% in the control group. The serogroups B and C were the most commonly isolated. The sewage farming children are therefore more exposed to detectable risk from pathogenic micro-organisms than the control children.
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PMID:Health effect of human wastes use in agriculture in El Azzouzia (the wastewater spreading area of Marrakesh city, Morocco). 1197 Aug 12

All vertebrates produce gastric acid. Its main function is inactivation of ingested microorganisms. The majority of microbiological pathogens ingested never reaches the intestine because of the gastric barrier. Although gastric hypochlorhydria is fairly common due to atrophic gastritis, gastric surgery or use of inhibitors of gastric acid secretion, the resulting susceptibility to infection has not been studied extensively. Drug-induced blockade of acid secretion leads to gastrointestinal bacterial overgrowth; the clinical significance of this is still controversial. Gastric acidity is known to protect against non-typhoid salmonellosis and cholera and it is suspected that it protects against several parasitic diseases as giardiasis and strongyloides. There is a lack of studies focusing on the impact of the gastric acidic barrier on viral infections. Concerning prion infections only a single study has been performed, demonstrating a possible role of gastric acidity in the protection against foodborne prion disease in mice. The combination of malnutrition and hypochlorhydria may contribute to the high prevalence of gastrointestinal infections in developing countries. Further studies are needed to evaluate the clinical consequences of impaired gastric acidity with respect to susceptibility to infections.
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PMID:Gastric juice: a barrier against infectious diseases. 1567 70

Men who have sex with men (MSM) are a priority population for HIV care and prevention programs. This report describes HIV and other sexually transmitted disease (STD) trends among MSM in metropolitan Atlanta by analyzing nine databases. We describe the use of the male-to-female (M:F) ratio, a surrogate marker for MSM in databases without standardized MSM variables that is recommended as an indirect measure of HIV risk behavior in the CDC/HRSA Integrated Guidelines for Developing Epidemiologic Profiles. During 1997 to 2001, there were increases among MSM for reported syphilis (from 9% to 17%), anti-biotic-resistant gonorrhea (from 4.8% to 8.6%), and HIV seroprevalence (from 33% to 43%). During 1998 to 2001, the M:F ratio for cases peaked at 12:1 during a hepatitis A outbreak among MSM, increased for shigellosis (from 1:0 to 18:1) and giardiasis (from 1.7 to 2.1), and did not appreciably change for hepatitis B, salmonellosis, or chlamydia. HIV and several other STDs appear to have increased among MSM in metropolitan Atlanta. When standardized MSM variables are not available, an M:F ratio is useful.
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PMID:Trends in infectious diseases and the male to female ratio: possible clues to changes in behavior among men who have sex with men. 1640 Nov 82

Data from the first sentinel site (Waterloo Region, Ontario) of the Canadian Integrated Enteric Disease Surveillance System (C-EnterNet) were used in a secondary-based case-control study of laboratory-confirmed Cryptosporidium infections to study the role of various exposure factors. The incidence of cryptosporidiosis in Waterloo Region was almost double both the provincial and national rates. Persons ill with one of nine other enteric infections (amoebiasis, campylobacteriosis, cyclosporiasis, giardiasis, listeriosis, salmonellosis, shigellosis, verotoxigenic E. coli infections, yersiniosis) captured by the surveillance system were used as the control group. Of 1204 cases of enteric illness in the sentinel area between April 2005 and December 2007, 36 cases and 803 controls were selected after excluding outbreak and international travel-related cases. Univariable analyses (Pearson chi2 and Fisher's exact tests) and multivariable logistic regression were performed. Results of the multivariable analysis found that cryptosporidiosis was associated with swimming in a lake or river (OR 2.9, 95% CI 1.2-7.4), drinking municipal water (a potential surrogate for urban respondents vs. rural) (OR 2.4, 95% CI 1.04-5.7), and having a family member with a diarrhoeal illness (OR 2.9, 95% CI 1.3-6.4).
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PMID:A modified case-control study of cryptosporidiosis (using non-Cryptosporidium-infected enteric cases as controls) in a community setting. 1952 50

We investigated whether risk of sporadic enteric disease differs by drinking water source and type using surveillance data and a geographic information system. We performed a cross-sectional analysis, at the individual level, that compared reported cases of enteric disease with drinking water source (surface or ground water) and type (municipal or private). We mapped 814 cases of campylobacteriosis, cryptosporidiosis, giardiasis, salmonellosis and verotoxigenic Escherichia coli infection, in a region of British Columbia, Canada, from 1996 to 2005, and determined the water source and type for each case's residence. Over the 10-year period, the risk of disease was 5.2 times higher for individuals living on land parcels serviced by private wells and 2.3 times higher for individuals living on land parcels serviced by the municipal surface/ground water mixed system, than the municipal ground water system. Rates of sporadic enteric disease potentially differ by drinking water source and type. Geographic information system technology and surveillance data are accessible to local public health authorities and used together are an efficient and affordable way to assess the role of drinking water in sporadic enteric disease.
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PMID:Where's the pump? Associating sporadic enteric disease with drinking water using a geographic information system, in British Columbia, Canada, 1996-2005. 1959 Jan 37


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