Values are means SD. * Values represent n 8 because one individual was hyperventilating during sampling. Blood parameters were measured from arterialized finger samples. 4: 15 --103. The Heats of Formation of Xenon Fluorides. D. A. Dixon, W. A. de Jong, K. A. Peterson, K. Christe, G. J. Schrobilgen 4: 35 --104. Importance of polyfluoroorganodifluoroboranes for the introduction of polyfluoroorgano groups into strongly oxidizing hypervalent main group element fluorine bonds. H -J. Frohn, A. Abo-Amer, C. Steinberg, A. Wenda.

The emergence of resistance to amantadine in influenza A viruses has been shown to occur rapidly during treatment as a result of single-amino-acid substitutions at position 26, 27, 30, or 34 within the transmembrane domain of the matrix- M ; -2 protein. In this study, reverse genetics was used to generate and characterize recombinant influenza A H1N1 ; viruses harboring L26F, V27A, A30T, S31N, G34E, and V27A S31N mutations in the M2 gene. In plaque reduction assays, all mutations conferred amantadine resistance, with drug concentrations resulting in reduction of plaque number by 50% IC50s ; 154- to 3, 300-fold higher than those seen for the wild type WT ; . M2 mutants had no impairment in their replicative capacities in vitro on the basis of plaque size and replication kinetics experiments. In addition, all mutants were at least as virulent as the WT in experimentally infected mice, with the highest mortality rate being obtained with the recombinant harboring a double V27A S31N mutation. These findings could help explain the frequent emergence and transmission of amantadine-resistant influenza viruses during antiviral pressure in the clinical setting.
1 A shield divided into three sections: upper part chief ; white charged with three five-pointed stars, representing the three main island groups of Luzon, Visayas, and Mindanao; the lower portion is divided per pale, left half blue, right half red. Charged in center point is an oval divided in half per fess the arms of Manila ; : in the upper portion is a donjon, or tower fortress, on a white field; in the lower portion is a sea lion sejant facing left on a white field, in its right paw a sword or dagger. The shield is surmounted by a torse upon which is perched an eagle displayed, wings inverted. Below the shield is a ribbon bearing the state name, COMMONWEALTH OF THE PHILIPPINES. [All issues] and reminyl. Anti-inflammatory effects of compounds on edema induced with pharmacological inflammatory agents. Additional research was conducted to determine the inhibitory effect of benzamidine derivatives on edema induced by a pharmacological inflammatogenic agent. Rats were injected intraperitoneally with standard reference drugs and benzamidine derivatives. Thirty minutes later, the hind paw was injected with 0.1 ml of an inflammatory agent. To determine the inhibitory effect of the compounds, edema intensity measurements were taken at 1, 2, and 3 h after the injection. The results obtained against edema induced with hyaluronidase are shown in Table 3. The edema was moderately inhibited by benzamidine derivatives, and the inhibition rate was equivalent to that of flufenamic acid or aspirin Table 3 ; . However, amantadine did not show any anti-edema effect. These facts indicate that these amidine derivatives displayed satisfactory anti-inflammatory action. Inhibitory effect on the consolidation development in mice infected with merzonineinactivated virus. It has been reported 10 ; that when influenza virus is treated with merzonine its infectivity is inactivated, but it retains its ability to induce hemagglutination. However, our studies showed that when mice were infected intranasally with this inactivated virus, pulmonary consolidation developed. Mice were infected with 3, 200 hemagglutination units of merzonine-inactivated virus, and the administration of a compound was started immediately after infection and continued once daily for 4 consecutive days. On day 5 the mice were examined to determine the degree of pulmonary consolidation Table 4 ; . The findings indicate that benzamidine derivatives inhibit the development of pulmonary consolidation induced with inactivated-virus inoculation. To study. So researchers are still reluctant to make a recommendation on using this herb and revia.
Subthalamotomy produced a significant P 0.003 ; reduction 49.1% ; in the `off' UPDRS-part III score at the last assessment compared with the preoperative baseline score 57 preoperatively versus 29 postoperatively ; Fig. 2B ; . The motor score in the `on' state was also significantly P 0.003 ; reduced by 33% Fig. 2B ; . The UPDRS subscores for bradykinesia, rigidity, tremor, gait and postural instability, and the UPDRS-part II score for ADL significantly decreased in the `off' medication state Table 2B ; at the last visit compared with baseline values. The UPDRS-part II in the `on' state was significantly improved up to the last evaluation Table 3B ; . Comparison of the `off' UPDRS III scores at the first year postsurgery and the last observation 35 years ; revealed no significant difference P 0.1 ; Fig. 2B ; . The mean daily levodopa dose decreased by 53% Table 2B ; compared with baseline P 0.001 ; . Four patients stopped levodopa and remained on amantadine 200 mg day and trihexyphenedil 3 mg day for 1 year. After 2 years, two of them required the addition of levodopa 200 mg day ; . The other two maintained excellent motor control up to 3 and 4 years without dopaminergic agents. The influenza A virus M2 integral membrane protein has ion channel activity that can be inhibited by the antiviral drug amantadine. Recently, a spirene-containing compound, BL-1743 , that inhibits influenza virus growth was identified S. Kurtz, G. Luo, K. M. Hahnenberger, C. Brooks, O. Gecha, K. Ingalls, K.-I. Numata, and M. Krystal, Antimicrob. Agents Chemother. 39: 22042209, 1995 ; . We have examined the ability of BL-1743 to inhibit the M2 ion channel when expressed in oocytes of Xenopus laevis. BL-1743 inhibition is complete as far as can be measured by electrophysiological methods and is reversible, with a reverse reaction rate constant of 4.0 10 3 s contrast, amantadine inhibition is irreversible within the time frame of the experiment. However, BL-1743 inhibition and amantadine inhibition have similar properties. The majority of isolated influenza viruses resistant to BL-1743 are also amantadine resistant. In addition, all known amino acid changes which result in amantadine resistance also confer BL-1743 resistance. However, one BL-1743-resistant virus isolated, designated M2-I35T, contained the change Ile-353Thr. This virus is 70-fold more resistant to BL-1743 and only 10-fold more resistant to amantadine than the wild-type virus. When the ion channel activity of M2-I35T was examined in oocytes, it was found that M2-I35T is BL-1743 resistant but is reversibly inhibited by amantadine. These findings suggest that these two drugs interact differently with the M2 protein transmembrane pore region. The low-pH-activated M2 ion channel of influenza A virus 17 ; is a minor but essential component of virions 30 ; , and the M2 ion channel activity is specifically blocked by the antiviral drug amantadine 17, 29 ; . The M2 protein is a type III integral membrane protein of 97 amino acids, with a 24-residue Nterminal extracellular domain, a 19-residue transmembrane domain, and a 54-residue C-terminal intracellular cytoplasmic domain 14 ; . The M2 protein is a tetramer that is stabilized by two disulfide bonds such that the homotetramer either consists of a pair of disulfide-linked dimers or is a completely disulfide linked tetramer 9, 24 ; . The M2 ion channel of influenza A virus is thought to play an essential role in the uncoating of the virus by permitting the passage of protons across the virion membrane into the virion core and weakening protein-protein interactions. When the M2 ion channel is blocked by amantadine, uncoating of the virion is incomplete reviewed in references 7 and 13 ; . In addition to a role in the uncoating of influenza virus, the M2 ion channel dissipates the pH gradient across the membrane of the Golgi apparatus, which for some strains of influenza virus is essential in order to maintain the viral hemagglutinin spike glycoprotein in its pH-neutral metastable form 15, 19, 23, ; . Direct evidence that the M2 protein has ion channel activity was provided by expressing the M2 protein either in oocytes of Xenopus laevis 17, 28, 29 ; or in mammalian cells that were infected with recombinant simian virus 40 that encoded the M2 and dramamine.

Key words : amniotic membrane , ocular surface reconstruction Objective : To study the efficacy of amniotic membrane transplantation in various indications for ocular surface reconstruction. Method : Amniotic membrane transplantations were performed in 140 eyes 130 patients ; for ocular surface reconstruction. The indications for the corneal group were limbal stem cell deficiency, bullous keratopathy, persistent epithelial defect, band keratopathy, prosthesis, corneal ulcer and acute chemical burn. The indications for the conjunctival group were grafts for pterygium, conjunctival tumors, symblepharon, and covering the scleral graft. Results : Success was noted in 75.7 per cent 106 140 ; eyes, partial success in 17.9 per cent 25 140 ; eyes, and failure in 6.4 per cent 9 140 ; eyes for a mean follow-up of 6.6 months 1-19 months ; . The success and partial success rate were 80.6 per cent 54 67 ; , 14.9 per cent 10 67 ; in the corneal group and 71.2 per cent 52 73 ; , 20.6 per cent 15 73 ; in the conjunctival group. Conclusion : Amniotic membrane transplantation can solve some difficult ocular surface problems, and can be used to promote epithelial healing, reduce inflammation and scarring. J Med Assoc Thai 2001; 84 5 ; : 705-18.

Symptoms of autonomic instability include fever; dyspnea; tachycardia; fluctuating blood pressure; pallor or flushing; and urinary incontinence. Mental status alterations range from delirium and psychosis to obtundation and coma. Motor abnormalities of NMS include hyperreflexia, rigidity, and myoclonus. Laboratory evaluations typically show elevated creatine kinase, leukocytosis, and increased iron levels. In suspected cases of NMS, the neuroleptic drug should be discontinued immediately and the patient should be monitored closely in an intensive care setting. Vigorous hydration to prevent rhabdomyolysis and external or internal cooling are also indicated. In mild cases, drug treatment consists of oral, IV, or IM benzodiazepines administered at 6-hour intervals until symptoms are controlled. There are no major contraindications to benzodiazepine therapy but they can cause sedation and respiratory depression. Bromocriptine or other dopamine agonists e.g., pergolide, pramipexole, ropinirole ; , levodopa, and amantadine are indicated for moderately severe NMS. Hypotension can occur with all of these agents and hallucinations have been reported with most. Bromocriptine has been associated with MI, stroke, and seizure. Levodopa can cause nausea. Edema and rash can occur with amantadine. Patients experiencing hypermetabolic crisis should be treated with adjunctive dantrolene. However, dantrolene is contraindicated in patients with active liver disease and its adverse effects include: hypotension; heart failure; arrhythmia; bone marrow suppression; and hepatitis. NMS that is resistant to medical therapy can be treated with electroconvulsive therapy. Other movement disorders such as acute dystonia or akathisia can also occur with neuroleptic treatment. These are usually self-limited after neuroleptic discontinuation and symptoms can be managed with anticholinergics and dilantin. 56 subjects were recruited and inclusion criteria netted 18. This study is ongoing since the drug has shown preliminary efficacy. 5. University of Pittsburgh grant award for Treatment of Chronic Executive Deficits with Aamantadine Hydrochloride following Pediatric Head Injury, Principal Investigator: Sue Beers, PhD, University of Pittsburgh, Pittsburgh, PA. This is a randomized controlled study of an extremely important nature, since executive function involves decision-making, memory and attention, all important for success in school and life. This important study is ongoing and results will be published in major peer-reviewed journals. Early results are promising. 6. University of Virginia grant award for Urinary Incontinence and Moderate to Severe Traumatic Brain Injury: Epidemiology and Treatment, Principal Investigator: Jeffrey Barth, PhD, Department of Psychiatric Medicine, UVA School of Medicine, Charlottesville, VA. This project is nearing completion and the results will be published.

State-of-the-art diagnosis and treatment for melanoma of the skin. If the source of infection is a pet bird, obtain the history of ownership, date and place of acquisition, and bird's health history. Testing birds or sampling environmental surfaces in the home setting is rarely warranted for public health reasons. Genetic sequencing of avian influenza a h5n1 ; viruses from human cases in vietnam, thailand, and indonesia shows resistance to the antiviral medications amantadine and rimantadine, two of the medications commonly used for treatment of influenza.

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