Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0030193 (pain)
 261,466 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

A randomized, placebo-controlled trial of the efficacy of topical formulation of Clinacanthus nutans (Bi Phaya Yaw) extract was carried out in 51 patients with varicella-zoster virus infection. The study medication was applied five times daily for 7-14 days until the lesions were healed. The number of patients with lesion crusting within 3 days and with lesion healing within 7 days and 10 days were significantly greater in the C. nutans extract-treated group than the placebo group (p < 0.01). Pain scores were reduced more rapidly in the C. nutans extract-treated group than in the placebo group. There were no side effects of the study medication.
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PMID:Treatment of herpes zoster with Clinacanthus nutans (bi phaya yaw) extract. 857 75

Narcotic opioid compounds are among the most widely prescribed drug interventions for individuals suffering pain. Among the unwarranted side effects of respiratory depression, constipation, and physical dependence are the immunosuppressive qualities, particularly those which affect cell-mediated immunity. The immunosuppressive characteristics of opioid narcotics (e.g., morphine) have recently come into focus with the advent of acquired immune deficiency syndrome (AIDS) and the putative causative agent, human immunodeficiency virus type 1 (HIV-1). Specifically, a vast reservoir of HIV-1-infected individuals exists among drug abusers. Moreover, experimental evidence would suggest narcotic opioids may increase viral load in infected individuals by modifying the cellular machinery of activated leukocytes. Likewise, investigators have shown that opioids modify tumor growth and development. In this review, a comparison between endogenous opioid peptides and exogenous opiates on cell-mediated immunity and its relationship to viral infection and tumors is described.
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PMID:Exogenous and endogenous opioids as biological response modifiers. 865 91

Frequency of herpes simplex virus(HSV)-induced esophagitis was reported to range from 0.5% to 6% in non-selected patients according to autopsy and clinical studies. In case of gastrointestinal involvement, affinity of herpes simplex virus to squamous epithelia predisposes the esophagus to be affected. Typically, patients complain about acute onset of odynophagia, retrosternal pain, or symptoms of gastrointestinal blood loss, while systemic signs of inflammation are often absent. Endoscopic examination usually reveals disseminated, roundish mucosal defects with distinct borders preferably in the distal part of the esophagus. If suspected clinically and by endoscopy, a histological and/or cytological diagnosis should be achieved by carefully taking multiple biopsies from the edge of the suspicious lesions. Antiviral therapy is not obligatory, since HSV esophagitis often resolves spontaneously. In the presence of preexisting immunodeficiency, marked clinical symptoms, or complicated course, however, the guanosine analogue aciclovir is the treatment of choice. In view of a comparably low sensitivity of macroscopic assessment and an expected increase in incidence of this viral infection, a high index of suspicion for this disorder appears to be necessary for all clinicians working in the field of endoscopy. Based on 15 personal observations recorded from 1983 to 1995, epidemiological, pathogenetic, morphological, and clinical features of HSV esophagitis will be summarized and discussed in the light of the pending literature on this subject.
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PMID:[Inflammatory esophageal diseases caused by herpes simplex virus infections--overview and report of 15 personal cases]. 868 61

We describe a 19-year-old patient who developed mononeuritis multiplex associated with measles virus infection. On April 30th, 1995, he suffered from fever and skin eruption, which disappeared ten days later. Thirteen days later, he noticed weakness of the fingers of both hands and forearms, and pain on both elbow joints. He was admitted to our hospital on June 12th, 1995. Neurologic examination revealed weakness and sensory disturbance, confined to the distal aspects of the right radial nerve and left median nerve. The electrodiagnostic findings confirmed those of axonal neuropathy in the right radial and left median nerves. Routine laboratory studies were normal. The cerebrospinal fluid test and EEG were normal. The IgG and IgM antibody titers against measles virus continued to be elevated in serum over four months after the onset, while they were not elevated in the cerebrospinal fluid. The corticosteroid therapy was mildly effective. Although the pathogenesis of this case is unclear, we speculate that the mononeuritis multiplex was caused by vasculitis related to the persistent measles virus infection in both elbow areas.
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PMID:[Mononeuritis multiplex associated with measles virus infection]. 875 96

1. Chronic fatigue syndrome is characterized by muscle fatigue and pain at rest, symptoms which are usually exacerbated with exercise. Although various studies have shown minor, non-specific morphological and biochemical changes in muscle of patients with chronic fatigue syndrome, no consistent defect has been identified. Some have suggested that an enteroviral infection in muscle may cause the chronic muscle fatigue seen in patients with chronic fatigue syndrome, with acute infection directly and irreversibly impairing mitochondrial function, and persistent infection depressing muscle protein synthesis and metabolism. 2. To clarify the involvement of enterovirus infection in chronic fatigue syndrome, muscle biopsies from a group of patients with chronic fatigue syndrome were examined for the presence of enteroviral RNA by reverse transcriptase-polymerase chain reaction techniques in relation to functional studies of muscle mitochondria and the muscle RNA/DNA ratio. 3. Fifty-eight percent of patients reported an uncharacterized 'viral infection' before the onset of their illness, but none of the muscle samples from 34 patients contained detectable amounts of enteroviral RNA. Muscle tissue had a general reduction in the RNA/DNA ratio and mitochondrial enzyme activities with no specific abnormality in the activity of enzymes encoded partially on the mitochondrial genome (cytochrome-c oxidase) or nuclear genome (citrate synthase, succinate reductase). 4. These data provide no evidence of an enteroviral infection in muscle of patients with chronic fatigue syndrome, although this does not exclude a role of enterovirus in initiating the disease process. The general reduction in RNA/DNA ratio and mitochondrial enzyme activities is consistent with a general reduction in habitual activity.
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PMID:Investigation by polymerase chain reaction of enteroviral infection in patients with chronic fatigue syndrome. 877 36

Hantavirus pulmonary syndrome (HPS) is a viral infection from a new strain of Hantavirus. The Hantavirus was first discovered in North America in 1993 after an outbreak of fatal illness on a Navajo Indian reservation in New Mexico. Since then, 122 cases of HPS (with a high mortality rate of more than 50%) have been reported in 23 states, with the highest prevalence in the Four Corners area. The reservoir for Hantavirus is small rodents, mostly field mice, vole, and chipmunks. It is transmitted through inhalation of airborne virus from dry rodent excreta and saliva. A North American strain of Hantavirus, named ain nombre virus (SNV), primarily affects the lungs, causing rapid accumulation of fluids and leading to noncardiogenic pulmonary edema, pleural effusion, and acute respiratory distress syndrome (ARDS). In the prodromal stage, HPS presents with flu-like symptoms, nausea, vomiting, and gastrointestinal pain and is often mistaken on the first visit for other infectious diseases or gastroenteritis. In the second acute stage, rapid respiratory deterioration begins: HPS is often misdiagnosed for pneumonia, idiopathic ARDS, and pulmonary edema. HPS treatment with an experimental antiviral intravenous drug, ribavirin, is under investigation. Practitioners must possess through clinical knowledge on the diagnoses, pathology, treatment, and course of the disease to reduce the mortality and morbidity rate of this rare but serious infection. A case report based on a recent HPS death in New York State on Long island in April 1995 is presented.
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PMID:Hantavirus pulmonary syndrome: epidemiology, prevention, and case presentation of a new viral strain. 878 77

Since hemodialysis patients are at high risk for blood-borne viral infection such as hepatitis B and C virus infection, nursing staffs of the hemodialysis units have a significant occupational exposure to blood-borne virus infection. Furthermore, they are in danger of contacting occupational low back-pain because they have to take care of patients in a half-rising position. In addition, they may also suffer from burned-out syndrome because they have to look after all the chronic renal failure patients as well as run machines during the hemodialysis procedure. In this paper, we describe occupational danger to health of nursing staffs working in hemodialysis units.
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PMID:[Occupational dangers to health of nursing staffs in hemodialysis units]. 882 64

Sickle-cell adherence to endothelium has been hypothesized to initiate or contribute to microvascular occlusion and pain episodes. Adherence involves plasma proteins, endothelial-cell adhesion molecules, and receptors on sickle erythrocytes. It has previously been reported that sickle reticulocytes express the alpha 4 beta 1 integrin receptor and bind to cytokine-activated endothelium via an alpha 4 beta 1/vascular-cell adhesion molecule-1 (VCAM-1) interaction. To elucidate other roles for alpha 4 beta 1 in sickle-cell adherence, the ability of activated alpha 4 beta 1 to promote adhesion to endothelium via a ligand different than VCAM-1 was explored. Adherence assays were performed under dynamic conditions at a shear stress of 1 dyne/cm2. Preincubation of sickle erythrocytes with phorbol 12,13-dibutyrate (PDBu) increased adherence of sickle cells eightfold as compared with untreated sickle cells. Normal erythrocytes, whether treated with PDBu or not, did not adhere to the endothelium. Activating anti-beta 1 antibodies 4B4 and 8A2 also increased the adhesion of sickle, but not normal, red blood cell (RBC) adhesion to endothelium. Anti-alpha 4 antibodies HP1/2 and HP2/1, inhibitory antibody 4B5, or an RGD peptide inhibited sickle-cell adherence induced by PDBu. Additional studies were undertaken to examine if fibronectin, a ligand for activated alpha 4 beta 1, was involved in PDBu-induced sickle erythrocyte adherence. Adherence of PDBu-treated sickle cells was completely inhibited by the CS-1 peptide of fibronectin. Fibronectin was detected on the surface of washed endothelium using an antifibronectin antibody in enzyme-linked immunosorbent assays. Antifibronectin antibody pretreatment of endothelial cells inhibited PDBu-induced adherence by 79% +/- 17%. Incubation of sickle RBCs with exogenous fibronectin after PDBu treatment inhibited adherence 86% +/- 8%. Taken together, these data suggest that endothelial-bound fibronectin mediates adherence of PDBu-treated sickle cells. Interleukin-8 (IL-8), a chemokine released in response to bacterial infection, viral infection, or other injurious agents, and known to activate integrins, also increased adherence of sickle erythrocytes to endothelial cells via fibronectin. This novel adherence pathway involving sickle-cell alpha 4 beta 1 activated by PDBu or IL-8 may therefore be relevant in vivo at vascular sites that produce IL-8 or similar agonists in response to vascular injury or immune activation. These observations describe ways in which inflammation and immune responses cause vasoocclusive complications in sickle-cell disease.
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PMID:Phorbol ester stimulation increases sickle erythrocyte adherence to endothelium: a novel pathway involving alpha 4 beta 1 integrin receptors on sickle reticulocytes and fibronectin. 894 72

Many musculoskeletal complaints are accompanied by classic signs and symptoms that can be readily diagnosed by the primary care physician. Others are much less obvious and present a diagnostic challenge. In the office evaluation of patients with musculoskeletal complaints, the history is the most informative element. Least helpful are laboratory tests. Although erythrocyte sedimentation rate (ESR), rheumatoid factor, and other widely available tests are sensitive to the presence of rheumatic diseases, they are not specific for any of them. In the initial office evaluation, helpful points of differentiation include the number of joints involved, their location, and, when multiple joints are involved, whether they are symmetric or asymmetric. An acute monarthritis is associated mainly with trauma, infection, or a crystal-induced synovitis such as gout or pseudogout. Patients with polyarthritis may have symptoms that come and go very quickly, sometimes in < 24-36 hours. This migratory pattern characterizes diseases such as gonococcal arthritis, viral disease, and sarcoidosis. "Rheumatoid variants" such as Reiter's syndrome, psoriatic arthritis, and spondylitis may affect no more than a few joints and are accompanied by other signs, such as nail and skin lesions (psoriasis) or urogenital and enteric infections (Reiter's). Like erosive osteoarthritis, the rheumatoid variants may also cause swelling and inflammation of the distal interphalangeal joints. The classic example of symmetric joint disease is rheumatoid arthritis (RA). While RA often occurs in a progressive and additive pattern, its onset may be followed by a remission several months later. Patients who present with the "algias" may have no physical signs but manifest extensive musculoskeletal pain. Fibromyalgia occurs typically in younger women; polymyalgia rheumatica rarely occurs in patients < 50 years of age and is usually accompanied by a strikingly high ESR. Age and gender should be noted in the office evaluation because they can provide clues not only to these "algias," but other rheumatic diseases seen more frequently in one age or gender group than another.
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PMID:Office evaluation of the patient with musculoskeletal complaints. 921 53

An outbreak of a febrile illness characterized by headache, ocular pain, myalgia, and arthralgia occurred during June 1994 among Peruvian army troops in Northern Peru. On June 14-16, 1994, clinical data and blood samples were obtained from eight soldiers with a febrile illness, and from 26 others who had a history of febrile illness during the past three months. A follow-up blood sample was obtained 107 days later from four of the febrile and seven of the afebrile soldiers. Serum samples were tested for dengue (DEN), Oropouche (ORO), and Venezuelan equine encephalitis (VEE) IgM and IgG antibodies by an enzyme-linked immunosorbent assay (ELISA). Virus isolation was performed by inoculation of newborn mice and Vero cell cultures. Viral isolates were identified by immunofluorescence, ELISA, and nucleotide sequencing. A VEE virus infection was confirmed in three of the eight febrile soldiers, two by virus isolation, and one by serology. Antigenic analysis indicated that one of the virus isolates was similar to VEE subtype I, variety ID, viruses previously isolated in Colombia and Venezuela. Nucleotide sequence data showed that both viral isolates were identical to one another and closely related to VEE ID viruses previously isolated in Peru, Colombia, and Venezuela. Serologic results showed that two of 26 afebrile soldiers had IgM antibody to VEE and four had IgG antibody to VEE; two febrile soldiers had IgG antibody in their first serum samples. Oropouche-specific IgM antibody was detected in one of the eight febrile and five of the afebrile soldiers, and 18 of the 34 soldiers had low titers of ORO IgG antibody titers, which did not meet the diagnostic criteria for confirmed cases. All soldiers were negative for DEN IgM antibody, and 10 had flavivirus IgG antibody that reacted with DEN antigens. These data indicated that VEE ID virus was one of the causes of illness among Peruvians soldiers and that this was the first association of this VEE subtype with human disease in Peru.
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PMID:Venezuelan equine encephalitis and Oropouche virus infections among Peruvian army troops in the Amazon region of Peru. 923 Aug


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