Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0024530 (malaria)
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Between 1 September and 24 October 1976, 318 cases of acute viral haemorrhagic fever occurred in northern Zaire. The outbreak was centred in the Bumba Zone of the Equateur Region and most of the cases were recorded within a radius of 70 km of Yambuku, although a few patients sought medical attention in Bumba, Abumombazi, and the capital city of Kinshasa, where individual secondary and tertiary cases occurred. There were 280 deaths, and only 38 serologically confirmed survivors.The index case in this outbreak had onset of symptoms on 1 September 1976, five days after receiving an injection of chloroquine for presumptive malaria at the outpatient clinic at Yambuku Mission Hospital (YMH). He had a clinical remission of his malaria symptoms. Within one week several other persons who had received injections at YMH also suffered from Ebola haemorrhagic fever, and almost all subsequent cases had either received injections at the hospital or had had close contact with another case. Most of these occurred during the first four weeks of the epidemic, after which time the hospital was closed, 11 of the 17 staff members having died of the disease. All ages and both sexes were affected, but women 15-29 years of age had the highest incidence of disease, a phenomenon strongly related to attendance at prenatal and outpatient clinics at the hospital where they received injections. The overall secondary attack rate was about 5%, although it ranged to 20% among close relatives such as spouses, parent or child, and brother or sister.Active surveillance disclosed that cases occurred in 55 of some 550 villages which were examined house-by-house. The disease was hitherto unknown to the people of the affected region. Intensive search for cases in the area of north-eastern Zaire between the Bumba Zone and the Sudan frontier near Nzara and Maridi failed to detect definite evidence of a link between an epidemic of the disease in that country and the outbreak near Bumba. Nevertheless it was established that people can and do make the trip between Nzara and Bumba in not more than four days: thus it was regarded as quite possible that an infected person had travelled from Sudan to Yambuku and transferred the virus to a needle of the hospital while receiving an injection at the outpatient clinic.Both the incubation period, and the duration of the clinical disease averaged about one week. After 3-4 days of non-specific symptoms and signs, patients typically experienced progressively severe sore throat, developed a maculopapular rash, had intractable abdominal pain, and began to bleed from multiple sites, principally the gastrointestinal tract. Although laboratory determinations were limited and not conclusive, it was concluded that pathogenesis of the disease included non-icteric hepatitis and possibly acute pancreatitis as well as disseminated intravascular coagulation.This syndrome was caused by a virus morphologically similar to Marburg virus, but immunologically distinct. It was named Ebola virus. The agent was isolated from the blood of 8 of 10 suspected cases using Vero cell cultures. Titrations of serial specimens obtained from one patient disclosed persistent viraemia of 10(6.5)-10(4.5) infectious units from the third day of illness until death on the eighth day. Ebola virus particles were found in formalin-
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PMID:Ebola haemorrhagic fever in Zaire, 1976. 30 56

A study was undertaken to determine disease prevalence of, choice of treatment for, as well as health services utilization by, preschool children living in a rural district of coastal Tanzania. Disease prevalence and choice of treatment were determined through seven-day recall; health services utilization through systematic analysis of Village Health Workers' service records over one calendar year. It was found that the main disease symptoms, i.e. fever, cough, diarrhea, difficult breathing, ear ache and sore throat occurred at frequencies of 15.6, 8.3, 5.7, 2.0, 1.7 and 0.4 episodes respectively, per child per year. Cough, difficult breathing, common cold and ear ache caused about 50% of all episodes of illness. The majority (61%) of all illness episodes were treated in dispensaries, health centres or hospitals. 18.9% were attended by Village Health Workers (VHWs), 14.5% received treatment at home and 3.5% were seen by traditional healers. The use of VHWs was associated with a reduction of home-treatment and reliance on traditional healers for the care of perceived illness. VHW's monthly reports revealed malaria to be the number one health problem both among children and adults, responsible for about 25% of all attendances.
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PMID:The burden of disease among preschool children from rural Tanzania. 338 32

A joint pilot project between the Ministry of Health and the Dept. of Social and Preventive Medicine, University of Malaya, to test the value of village aides in extending the health care system into isolated Iban communities was begun in May 1979 in the Entabai District of Sarawak. A group of 15 village aides consisting of 11 traditional Iban manangs (medicine men) and 4 youths were trained to provide primary health care including simple curative care, preventive care, and to assist in the detection of malaria. Evaluation carreid out 2 years later showed the following. With regard to curative care, the village aides were each, on the average, treating 70.6 patients/month, the most common complaint being headache (30.4%), which along with abdominal pain, constipation, bodyache, diarrhea, vomiting, fever, worm infections, cough, and sore throat, accounted for 89% of all illnesses seen by them. Subsequent to the introduction of village aides in the project area, the number of seriously ill patients requiring admission to the rest beds of the klinik desa dropped by 43.8% and the number of emergency referrals to the backup divisional hospitals fell by 46.1% showing that patients were coming to the klink desa for treatment at an earlier stage. The 11 traditional Iban manangs, who had recently received training had, on their own accord, drastically reduced the use of traditional Iban modes of therapy in preference for modern medicine. During the 24 months immediately after the introduction of village aides into Entabai, 9 gravity feed water supply systems together with related health packages advocating general cleanliness, the use of latrines, and fences were affected, whereas only 6 such systems were installed in the previous 24 months, indicating that it is likely that the village aides were of some assistance in mobilizing the community with respect to self-help efforts. During the same period, the majority of longhouses in the area successfully established a number of vegetable gardens growing foods for home consumption, and continue to vigorously advocate breastfeeding of infants in opposition to bottlefeeding. During the 23 months after village aides were introduced, a total of 1093 blood films were collected by the 15 village aides, the average number of blood films/village aide being 3.2 blood slides/month. Village aides are socially accepted by the Iban community who utilize their curative skills when mild illness disturb them, but who proceed directly to the klinik desa when more serious illness such as fever strike. The project has established clear lines of communication between the health team and the community, and has stimulated the community to organize itself to achieve an increasingly high level of health through community participation and self-reliance. Plans have been approved in principle to train a further 2000 village aides in primary health care for the state of Sarawak.
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PMID:A primary health care project in Sarawak. 712 43

A 67-year-old male was admitted with consciousness disturbance (JCS, III-200) after completing a 12-day tour to east Africa without malaria chemoprophylaxis. When he visited the hospital one day prior to the admission complaining of fever and a slightly sore throat, he did not mention the travel history. Soon after his travel history was revealed, blood films were prepared which showed abundant ring forms accompanied with a small number of trophozoites and schizonts of Plasmodium falciparum, with the parasitemia of 26%. Despite intravenous quinine infusion, first that of loading dose, his consciousness state (JCS, III-300), renal and hepatic functions and anemia (Hb, 5.8 g/dL) deteriorated progressively. Moreover, metabolic acidosis worsened with pH of 6.954, HCO3- of 3.4 mEq/L, BE of--27.0 mEq/L, PCO2 15.5 mmHg by arterial blood gas analysis, although he received a large volume of sodium bicarbonate solution. The patient died on the 4th day of his illness. According to the literature, it is suggested that the treatment of metabolic acidosis in severe faciparum malaria with sodium bicarbonate is sometimes harmful, since it can result in sodium overloading, which may then precipitate pulmonary edema/ARDS. However, alternative treatment regimens have not yet been established. Future investigation on the etiology and the proper treatment of metabolic acidosis associated with severe falciparum malaria is highly needed.
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PMID:[A rapidly fatal case of severe falciparum malaria complicated with high-level metabolic acidosis]. 1086 Mar 64

One hundred and sixty eight febrile adult outpatients were investigated at St Francis Designated District Hospital in fakara, a holoendemic area in Tanzania. We wanted to assess the potential anamnestic and clinical risk indicators for malaria and to establish a rational strategy for malaria management. Blood slide investigations showed that 14% of all patients were positive for P. falciparum. All the positive cases were found during the rainy season. No reliable criteria for malaria were found in the history taking and physical examinations. Signs and symptoms of respiratory tract infection such as difficulties during breathing, sore throat, chest pain, cough, pathological findings in lung auscultation and combinations of these were negatively associated with malaria parasitaemia. The same was true for lymph node swelling and a clinical diagnosis other than malaria. Quality control of blood slide results from the hospital revealed a sensitivity of 55%, a specificity of 72%, and positive and negative predictive values of 24% and 91%. The main recommendations for malaria management in adults were to improve the quality of blood slide examinations and to use a different diagnostic strategy during the dry and rainy seasons. During the dry season blood slides of febrile adult patients should only be performed if there is a suspicion of malaria and antimalarial drugs should only be administered if blood slide results are positive. During the rainy season all febrile adults without obvious cause of fever other than malaria should be treated with antimalarials without previous blood slide examination.
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PMID:Towards a rational malaria management at district hospital level: exploratory case series of febrile adult patients in a holoendemic area of Tanzania. 1107 50

It is extremely important to look for tropical and other exotic diseases in travellers who return with illness or become ill after travelling. Especially tropical diseases and exotic infectious diseases have to be excluded because of their possible fatal outcome. On the other hand, many travellers return with 'common' not-exotic illnesses not related to their journey. When in such cases attention is only given to exotic causes of their illness, diagnosis can be delayed which may be harmful. This was the case in 5 patients: a woman aged 44 years who suffered for months from bloody diarrhoea since her return from Brasil, due to a rectal adenocarcinoma, a 61-year-old man with diarrhoea upon returning from Egypt, who had hairy-cell leukaemia, a 17-year-old boy who developed a ketoacidotic diabetic crisis whilst on a journey in Uganda, but in whose case the first thoughts went to malaria, a 50-year-old man who suffered from throat pain since a journey through East Africa, during which he contracted a flu-like disease, and in whom Kahler's disease was diagnosed, and 69-year-old man suffering from recurrent fever and cough, in whom a radiological lesion was observed in the thorax which proved to be part of Wegener's disease.
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PMID:[Illness after travel not always due to exotic disease]. 1123 88

Being a unique Chinese diagnostic measure, this method focussing its observation on the ventral vessels of the tongue, is first recorded in Neijing, saying that it is indicated when the vessels are varicose by puncturing for bloodletting in malaria, mad, and sadness. Ge Hong and Cao Yuanfan applied it for juandice, also for prognosis. Yimenfang predicts by this method the diagnosis for prognosis of the mother and foetus in difficult delivery, while Chen Zhiming popularized it in his Chan Nan sheng Si Jue. Inherited from the theory of Collateral Vessel Diagnosis, this approach pays attention to the observation of the forms and colors of collateral vessel, claiming that dark green color and congestion have bad diagnosis. Though not well developed, it was applied as extra-acupoints for swelling tongue, sore throat and jaundice. While Zhou Xuehai elaborated Liu Shouzhen's idea and put forward a theory of minute-vessel-stasis which is wonderfully conincided with modern microciroulation theory. In 1964, Zhang Zanchen again advocated its diagnostic value in tumor, hepatopathy and cor pulmonale.
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PMID:[Textual research on diagnosis by lingual vessels]. 1161 75

Malaria is the tropical disease most commonly imported into the UK, with 1500-2000 cases reported each year, and 10-20 deaths. Approximately three-quarters of reported malaria cases in the UK are caused by Plasmodium falciparum, which is capable of invading a high proportion of red blood cells and rapidly leading to severe or life-threatening multi-organ disease. Most non-falciparum malaria cases are caused by Plasmodium vivax; a few cases are caused by the other two species of Plasmodium: Plasmodium ovale or Plasmodium malariae. Mixed infections with more than 1 species of parasite can occur; they commonly involve P. falciparum with the attendant risks of severe malaria. Management of malaria depends on awareness of the diagnosis and on performing the correct diagnostic tests: the diagnosis cannot be excluded until 3 blood specimens have been examined by an experienced microscopist. There are no typical clinical features of malaria, even fever is not invariably present. The optimum diagnostic procedure is examination of thick and thin blood films by an expert to detect and speciate the malarial parasites; P. falciparum malaria can be diagnosed almost as accurately using rapid diagnostic tests (RDTs) which detect plasmodial antigens or enzymes, although RDTs for other Plasmodium species are not as reliable. The treatment of choice for non-falciparum malaria is a 3-day course of oral chloroquine, to which only a limited proportion of P. vivax strains have gained resistance. Dormant parasites (hypnozoites) persist in the liver after treatment of P. vivax or P. ovale infection: the only currently effective drug for eradication of hypnozoites is primaquine. This must be avoided or given with caution under expert supervision in patients with glucose-6-phosphate dehydrogenase deficiency (G6PD), in whom it may cause severe haemolysis. Uncomplicated P. falciparum malaria can be treated orally with quinine, atovaquone plus proguanil (Malarone) or co-artemether (Riamet); quinine is highly effective but poorly tolerated in prolonged dosage and is always supplemented by additional treatment, usually with oral doxycycline. ALL patients treated for P. falciparum malaria should be admitted to hospital for at least 24 h, since patients can deteriorate suddenly, especially early in the course of treatment. Severe falciparum malaria, or infections complicated by a relatively high parasite count (more than 2% of red blood cells parasitized), should be treated with intravenous therapy until the patient is well enough to continue with oral treatment. In the UK, the treatment of choice for severe or complicated malaria is currently an infusion of intravenous quinine. This may exacerbate hypoglycaemia that can occur in malaria; patients treated with intravenous quinine therefore require careful monitoring. Intravenous artesunate reduces high parasite loads more rapidly than quinine and is more effective in treating severe malaria in selected situations. It can also be used in patients with contra-indications to quinine. Intravenous artesunate is unlicensed in the EU. Assistance in obtaining artesunate may be sought from specialist tropical medicine centres, on consultation, for named patients. Patients with severe or complicated malaria should be managed in a high dependency or intensive care environment. They may require haemodynamic support and management of acute respiratory distress syndrome, disseminated intravascular coagulation, renal impairment/failure, seizures, and severe intercurrent infections including gram-negative bacteraemia/septicaemia. Falciparum malaria in pregnancy is more likely to be severe and complicated: the placenta contains high levels of parasites. Stillbirth or early delivery may occur and diagnosis can be difficult if parasites are concentrated in the placenta and scanty in the blood. The treatment of choice for falciparum malaria in pregnancy is quinine; doxycycline is contraindicated in pregnancy but clindamycin can be substituted for it, and is equally effective. Primaquine (for eradication of P. vivax or P. ovale hypnozoites) is contraindicated in pregnancy; after treatment for these infections a pregnant woman should take weekly chloroquine prophylaxis until after delivery when hypnozoite eradication can be considered. Children are over-represented in the incidence of malaria in the UK, probably because completely susceptible UK-born children accompany their overseas-born parents on visits to family and friends in endemic areas. Malaria in children (and sometimes in adults) may present with misleading symptoms such as gastrointestinal features, sore throat or lower respiratory complaints; the diagnosis must always be sought in a feverish or very sick child who has visited malaria-endemic areas. Children can be treated with most of the antimalarial regimens which are effective in adults, with appropriate dosage adjustment. Doxycycline plus quinine should not be given to children under 12 years as doxycycline is contraindicated in this age group, but clindamycin can be substituted for doxycycline, and pyrimethamine-sulfadoxine (Fansidar) may also be an effective substitute. An acute attack of malaria does not confer protection from future attacks: individuals who have had malaria should take effective anti-mosquito precautions and chemoprophylaxis during future visits to endemic areas.
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PMID:UK malaria treatment guidelines. 1721 45

This study sought to determine the effect of the traditional antimalarial plant, Aristolochia petersiana (Malundu) extract on the efficacy of fansidar, a pharmaceutical antimalarial drug. A. petersiana is used by traditional healers for the treatment of malaria and sore throat, as well as snakebite antivenom. It grows wild in the south eastern areas of Zimbabwe (Chimanimani and Chipinge) and in the north and north western regions (Binga and Lupane). The effect of the methanolic extract of the roots of A. petersiana, fansidar, and the extract fansidar mixture were compared on malaria parasites, revealing that the inhibition of growth of the malaria parasite was greater for the mixture than for either A. pertesiana extract or fansidar individually. Fansidar is a known inhibiter of protozoal growth, hence it was used as a positive control and the culture in which no drug was applied was used as a negative control. The results were suggestive of a synergistic relationship between A. petersiana and fansidar in their inhibition of the malaria parasite growth. The study could be extended to the establishment of formulations for use in the treatment of malaria.
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PMID:Effect of Aristolochia petersiana on the efficacy of fansidar. 1789 34

Toddalia asiatica (L) Lam. (Rutaceae) has been used by traditional health practitioners in East Africa for management of diseases, however, the extent of its usefulness has not been established to date. Fieldwork for this study was carried out in the Lake Victoria Basin between March and September 2006. The purpose was to collect ethnomedical information that will serve as a basis for further studies to establish current and potential medicinal uses. The ethnomedical information was obtained through interviews using semi-structured questionnaires. Consultative meetings were also conducted with traditional health practitioners and other members of the communities in Kenya, Uganda and Tanzania. Results of this study show that Toddalia asiatica is collected in the wild, prepared mostly as decoctions or concoctions and administered orally. It is used for the management of a number of disease conditions. The most frequently cited diseases were stomach problems (78%) followed by malaria (25%). Cough (22%), chest pain (13%), food poisoning (8%), sore throat (7%), were also mentioned among other disease conditions treated. Validation studies of therapeutic claims will be carried out at a later date.
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PMID:The use of Toddalia asiatica (L) Lam. (Rutaceae) in traditional medicine practice in East Africa. 1799 12


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