Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0012833 (dizziness)
 9,689 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Breynia officinalis has the Chinese proprietary name, Chi R Yun, which means dizziness or vertigo for 7 d. In daily practice, it has been used to treat venereal diseases, contusion, heart failure, growth retardation and conjunctivitis in combination with other traditional Chinese medicines. Two hospital-based cases of Breynia officinalis poisoning have been reported to the Poison Control Center. Case 1 was a 43-y-old female who consumed a mixture of 1500 g lower stem and root of Ji Mu Ju in boiled water in a suicide attempt. Her AST reached 264 and ALT reached 2443. Case 2 was a 51-y-old female who consumed 20 pieces of lower stem and root of Ji Mu Ju stewed with meat and 100 ml of wine to treat chronic contact dermatitis. Her AST reached 3815 and ALT reached 6625. In both cases Breynia officinalis was identified as the cause of poisoning. Poisoning in humans involves the neurologic, gastrointestinal, hepatic, urinary and respiratory systems. Hepatotoxic effects have been reported for some Chinese herbal medicines, but not Breynia officinalis: Breynia officinalis poisoning causes hepatocellular liver injury rather than cholestatic liver injury.
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PMID:Hepatotoxicity caused by Breynia officinalis. 1193 10

The effects of vestibular stimulation on head and trunk movements were investigated during human walking (4.0 km/h). Vestibular stimulation was produced by irrigating an external auditory meatus with 4 degrees C ice water for 10 s. Using a 3-D motion analysis system, the linear (medial/lateral and vertical) translations and angular (yaw, pitch and roll) rotations were determined at the head, thorax, pelvis, knee, and foot. After caloric stimulation, waking trajectory deviated toward the stimulated side during dizziness. In addition, the amplitude of medial/lateral (M/L) linear translation and yaw rotation were significantly increased by caloric stimulation, especially at the head and thorax, whereas changes in vertical translation and pitch and roll rotations were not significant. The compensatory coordination (i.e., the yaw rotation to oppose the M/L linear translation) of the head was precisely maintained both before and after caloric stimulations, but it was decreased at the thorax and pelvis after stimulation. Our results suggested that vestibular sensory information, probably via the horizontal semicircular canals, contributes predominantly to the regulation of dynamic head and trunk movements in the M/L direction.
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PMID:Effects of caloric vestibular stimulation on head and trunk movements during walking. 1198 2

Individuals who lived near 2 electronic manufacturing plants were exposed to odorous chlorinated solvents by inhalation (directly) and by out gassing from well water. An exposure zone was defined by concentrations of trichloroethylene, 1,1,1-trichloroethane, tetrachloroethylene, and vinyl chloride in groundwater. The author adopted trichloroethylene as a "shorthand" for the exposure designation. Residents complained of impaired recall and concentration, and of dizziness; therefore, the focus of this investigation was brain functions. Neurobehavioral functions, Profile of Mood States, frequencies of 35 symptoms, and questionnaire responses provided by 236 residents from exposure zones were compared with responses provided by 161 unexposed regional referents and by 67 Phoenix residents who lived outside the exposure zone areas. Pulmonary functions were measured with spirometry. Residents of the exposure zones were compared with regional referents, and the former had significantly (p < .05) delayed simple and choice reaction times, impaired balance, delayed blink reflex latency R-1, and abnormal color discrimination. In addition, these individuals had impaired (1) cognitive functions, (2) attention and perceptual motor speed, and (3) recall. Individuals who lived in exposure zones had airway obstructions. Adverse mood state scores and frequencies of 33 of 35 symptoms were elevated. In conclusion, individuals who lived in the exposure zones had neurobehavioral impairments, reduced pulmonary functions, elevated Profile of Mood State scores, and excessive symptom frequencies.
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PMID:Is neurotoxicity associated with environmental trichloroethylene (TCE)? 1219 55

In the period 1989-1994, Honduran women participating in the Project Health Sector 2 have been exposed to a contraceptive mini-pill, Ovrette. The Institute of Honduran Social Security (IHSS) approved the program (in which Ovrette distribution is included) in May 1990. The program is partly funded by the Population Council, which is funded by USAID Registry with the Department of Health was not required under the Health Code since Ovrette had entered the country as a donation. In June 1993, a Commission of the Honduran Medical Association reported that the women were not given any written information on the drug. Ovrette is an oral contraceptive manufactured by Wyeth. Its active ingredient is a progestagen, Norgestrel. Contraindications for Ovrette include: non-lactating women who exhibit side-effects such as dizziness, water retention, migraine, etc.; non-lactating women with contraindications for estrogen; lactating women who reject other contraceptive drugs. The US Pharmacopeia and the US Food and Drug Administration do not authorize the drug for use by lactating women. As with other progestagens, Norgestrel passes through to the mother's milk. In 1993, the US Pharmacopeia reported that these hormones can cause harmful effects to the child, and recommended switching medications or discontinuation of lactation. In 1983, the WHO expressed concern about the possibility of injury caused by the progestagens. The possibilities included alterations to personality, behavior, anatomy of sexual organs, reproductive capacity, immunological function and development of neoplasia. Possible damages in puberty or during the reproductive age are not known since there is no study of exposed children that are older than 12 years of age.
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PMID:Honduran women received no written information on contraceptive pill. 1231 16

Many countries in Asia, Africa, Latin America, and the Caribbean offer substantial tax breaks to foreign corporations that set up shops in free-trade zones and waive environmental regulations and repress trade unions to further induce this practice. Workers in these shops--mainly women--perform repetitive machine-based motions, are exposed to toxic chemicals and unsafe equipment, and face dangerously high production quotas. Health problems caused by these working conditions include headache and dizziness, fatigue, anemia, forgetfulness, stomach pains, respiratory problems, hypertension, heart disease, and allergies. Water and air pollution and dumping of hazardous waste affect the health of entire communities. Since free-trade zones are a permanent feature of the global economy, organizing to protect workers and communities assumes critical importance. Groups such as the Border Committee of Women Workers in Mexico are providing workers with skills and support to make demands such as better treatment of pregnant workers. International labor, environmental, and public health advocates can support such efforts by providing assistance to worker-controlled organizations and pressuring governments to enforce laws intended to protect workers and their communities.
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PMID:Globalization causes a world of health problems. 1234 7

Despite the existence of laws in India that prohibit the labor of children under age 14, 70 to 115 million children between the ages of 5 and 14 are estimated to be part of India's labor force. Child labor in the agriculture sector accounts for 80% of child laborers in India and 70% of working children globally. From May 2001 to July 2001, Physicians for Human Rights (PHR) investigated the health experiences of 100 children in hybrid cottonseed production in rural Andhra Pradesh. Eighty-eight percent of the survey participants were girls, ages 7 to 14. PHR found that children worked on average 12 hours a day, were frequently exposed to pesticides, and were not provided with safety equipment, not even shoes or water to wash their hands and clothes. Children reported having frequent headaches and dizziness and skin and eye irritations after pesticide spraying. All 100 children reported that they were unable to go to school during the hybrid cottonseed season due to work demands. Ninety-four children reported to PHR that they would rather be in school. In addition, a majority of child workers interviewed by PHR reported physical and/or verbal abuse by their employers. Moreover, PHR interviews with representatives of multinational and national companies revealed knowledge of child labor practices for up to 10 years. Child labor is a significant health and human rights problem for children in India. The progressive elimination of child labor practices will require the support of a wide cross-section of civil society.
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PMID:Child labor. A matter of health and human rights. 1269 32

The aim of this study was to investigate neural activity during period of vertiginous sensation, induced by caloric stimulation. After caloric vestibular stimulation (CVS) by cold water of five volunteers (n=5, age: 30+/-10), auditory evoked magnetic fields (AEFs) during the subsequent period of vertiginous sensations were measured by magnetoencephalography (MEG). Current-arrow maps (CAMs) were produced to estimate the spatial current distribution of the AEF responses, and a rotation value (dI(rot)) was calculated from the CAM. The worth of the dI(rot) values as indicators of vertigo was evaluated by comparing them with earlier reported values for elderly control (n=11, age: 67+/-5) and chronic dizziness (CD) (n=27, age: 68+/-8) groups (obtained from AEF responses with no the CVS). Although all volunteers felt vertigo during the AEF measurements, the AEF waveforms and CAM pattern only showed slight changes. While the dI(rot) values (1.43+/-0.73) just after CVS were not significantly different from those (1.59+/-0.46) for the elderly controls, they were significantly different from those (3.54+/-1.34) for the CD patients. These findings suggest that (i) the new parameter (dI(rot)) is more sensitively indicates dizziness (non-rotatory sensation) than vertigo (ii) the auditory cortical region may play an important role in body-balance perception of floating sensations.
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PMID:Magneto-encephalographic measurement of neural activity during period of vertigo induced by cold caloric stimulation. 1280 89

When a disease process becomes life-threatening, it is termed to be malignant. Hyperthermia is a heat illness that arises from one of two basic causes: 1) the body's normal thermoregulatory mechanisms are overwhelmed by the environment (an exogenous heat load) or, more commonly, by excessive exercise in a moderate-to-extreme environment (an endogenous heat load); or 2) failure of the thermoregulatory mechanisms, such as those encountered in the elderly or debilitated patient. Either cause can lead to heat illnesses such as heat cramps, heat exhaustion or heatstroke. Heat cramps are brief, intermittent and often severe muscular cramps that frequently occur in muscles fatigued by heavy work or exercise. They are believed to be caused by a rapid change in the extracellular fluid osmolarity resulting from sodium and water loss. Heat exhaustion is a more severe form of heat illness characterized by minor changes in mental status (poor judgment, irritability), dizziness, nausea and headache. In severe cases, the patient may have an altered LOC. Just as with heat cramps, profuse sweating is present. Removing the patient from the hot environment and administering fluids will usually result in a rapid recovery. [table: see text] Left untreated, heat exhaustion may progress to heatstroke. Heatstroke results when there is a complete collapse of thermoregulatory mechanisms. This will lead to a rise in body core temperature in excess of 105.8 degrees F (41 degrees C), which will produce multisystem tissue damage and physiological collapse. Severe cases can cause death. The patient in this case had an axillary temperature taken and recorded at 101.4 degrees F. Typically, axillary temperatures are one degree cooler than oral temperatures, which are one degree cooler than core temperatures. This patient, then, had a core temperature of 103 degrees F or higher. There are two types of heatstroke: classic and exertional. Classic heatstroke occurs during periods of sustained high ambient temperatures and humidity. Exertional heatstroke more often occurs in athletes, military personnel and people who work strenuosly in the environment. In these situations, endogenous heat accumulates more rapidly than the body can dissipate it in the environment. Although sweating is usually absent in the classic form of heatstroke, 50% of exertional heatstroke cases have persistent sweating as a result of catecholamine release. The presence of sweating does not preclude the diagnosis of heatstroke, and cessation of sweating is not the cause of it. As the illness progresses, peripheral vasodilation occurs, resulting in hypotension and shunting. As internal temperatures rise, myocardial contractility begins to decrease, manifested by bradycardia and irritability of the myocardium. No matter the age group, the presence of hypotension and decreased cardiac output indicates a poor prognosis for the patient.
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PMID:Hot on the inside. 1288 21

In daily clinical practice, it is seen that elderly patients complain most frequently of dizziness, tinnitus, and hearing loss. Listening to those complaints, do we not tend just to attribute them to age? Against this background, we review vertigo in elderly patients briefly and consider the key points of its treatment. In comparison to younger people, what is first noticeable about elderly people is that they have a lot of fat in the body and a markedly low level of intracellular water. In other words, elderly people are always at risk of dehydration and liable to enter a shock state. The dorsal root in the elderly is also degenerated, and this explains such diverse complaints as dizziness, tinnitus, ringing in the head, headache, neck and shoulder stiffness, and lumbago. However, these complaints cannot be dismissed simply as "an unidentified syndrome." Behind these complaints is invariably one or another organic disorder. This is the conclusion we have reached from our day-to-day clinical practice.
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PMID:Special features of old age vertigo. 1468 49

Urbanization is occurring at an explosive rate, and many cities, especially in low-income countries, are struggling to control growth and stop the development of unplanned communities. This research investigates the in-home environmental health risks associated with planned and unplanned growth in peri-urban communities (neighborhoods) of a rapidly growing city in Northern Mexico. Surveys were conducted during home visits to 98 households in a planned community and 202 households in unplanned communities of comparable, though slightly higher, socio-economic status. To assess the differences for the two types of communities, multiple risk factors were measured and compared. Results showed that households in both planned and unplanned communities were vulnerable to poor environmental health conditions, but more risk factors and negative health outcomes were associated with unplanned communities. Some of the obvious benefits of living in a planned community included better-constructed homes and water and sewer connections. Other study results indicated that households in the planned community reported fewer cases of respiratory problems (P = 0.039) and dizziness (P = 0.009). They were also less likely to store insecticides and other chemicals inappropriately in their home (P < 0.001). Providing adequate housing infrastructure appears to provide a number of important benefits to health and behavior beyond the simple provision of additional amenities in the home.
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PMID:Peri-urbanization and in-home environmental health risks: the side effects of planned and unplanned growth. 1557 60


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