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At least 19 recordsLinked to original sources
PubMed2000

Distribution of Ehrlichia chaffeensis (Rickettsiales: Rickettsiaeceae) in Amblyomma americanum in southern Indiana and prevalence of E. chaffeensis--reactive antibodies in white-tailed deer in Indiana and Ohio in 1998.

To continue monitoring the prevalence and distribution of Ehrlichia chaffeensis (Rickettsiales: Rickettsiaeceae) in southern Indiana, a total of 498 Amblyomma americanum (L.) ticks (262 adults and 292 nymphs) was collected from five southern Indiana counties during May and June 1998. Ticks were pooled and examined for the presence of E. chaffeensis using nested polymerase chain reaction and primers specific for the 16S rRNA gene of E. chaffeensis. The average minimum infection rate for adult ticks collected in 1998 was 3.8% (ranging from 0 to 7.7% in various counties) as compared with previous average minimum infection rates of 1.6% in 1995 and 4.9% in 1997. None of the pools of A. americanum nymphs tested positive. In addition, blood samples were collected from 325 white-tailed deer taken in Indiana and 327 taken in Ohio in November 1998. Serum samples were tested for the presence of E. chaffeensis-like organisms reactive to antibodies using an indirect immunofluorescence assay (IFA). Antibodies were found in deer from six Indiana counties where infection rates ranged from 42.6 to 66.7% and in four Ohio countries where infection rates ranged from 4.4 to 25%. The results of this study reconfirm that E. chaffeensis is well established in southern Indiana and also provide the first evidence of E. chaffeensis-like organisms infecting white-tailed deer in Ohio, suggesting the need to survey Ohio ticks for the presence of Ehrlichia.

Animals↗
PubMed2002

Toxicity assessment of sediments from the Grand Calumet River and Indiana Harbor Canal in Northwestern Indiana, USA.

The objective of this study was to evaluate the toxicity of sediments from the Grand Calumet River and Indiana Harbor Canal located in northwestern Indiana, USA. Toxicity tests used in this assessment included 10-day sediment exposures with the amphipod Hyalella azteca, 31-day sediment exposures with the oligochaete Lumbriculus variegatus, and the Microtox Solid-Phase Sediment Toxicity Test. A total of 30 sampling stations were selected in locations that had limited historic matching toxicity and chemistry data. Toxic effects on amphipod survival were observed in 60% of the samples from the assessment area. Results of a toxicity test with oligochaetes indicated that sediments from the assessment area were too toxic to be used in proposed bioaccumulation testing. Measurement of amphipod length after the 10-day exposures did not provide useful information beyond that provided by the survival endpoint. Seven of the 15 samples that were identified as toxic in the amphipod tests were not identified as toxic in the Microtox test, indicating that the 10-day H. azteca test was more sensitive than the Microtox test. Samples that were toxic tended to have the highest concentrations of metals, polycyclic aromatic hydrocarbons (PAHs), and polychlorinated biphenyls (PCBs). The toxic samples often had an excess of simultaneously extracted metals (SEM) relative to acid volatile sulfide (AVS) and had multiple exceedances of probable effect concentrations (PECs). Metals may have contributed to the toxicity of samples that had both an excess molar concentration of SEM relative to AVS and elevated concentrations of metals in pore water. However, of the samples that had an excess of SEM relative to AVS, only 38% of these samples had elevated concentration of metals in pore water. The lack of correspondence between SEM-AVS and pore water metals indicates that there are variables in addition to AVS controlling the concentrations of metals in pore water. A mean PEC quotient of 3.4 (based on concentrations of metals, PAHs, and PCBs) was exceeded in 33% of the sediment samples and a mean quotient of 0.63 was exceeded in 70% of the thirty sediment samples from the assessment area. A 50% incidence of toxicity has been previously reported in a database for sediment tests with H. azteca at a mean quotient of 3.4 in 10-day exposures and at a mean quotient of 0.63 in 28-day exposures. Among the Indiana Harbor samples, most of the samples with a mean PEC quotient above 0.63 ( i.e., 15 of 21; 71%) and above 3.4 ( i.e., 10 of 10; 100%) were toxic to amphipods. Results of this study and previous studies demonstrate that sediments from this assessment area are among the most contaminated and toxic that have ever been reported.

Animals↗
PubMed1993

Toxicity of sediments and sediment pore waters from the Grand Calumet River-Indiana Harbor, Indiana area of concern.

The assessment of contaminated sediments is a difficult task due to the complex nature of the sediment matrix and the potential for exposure of aquatic organisms to in-place contaminants via several routes. Differential species sensitivity also precludes the completion of a meaningful environmental assessment with only one species. Therefore, a battery of assays approach with the Microtox assay, 48 hr Daphnia magna and Ceriodaphnia dubia tests and a 10-day Chironomous tentans test was used to evaluate the toxicity of sediment pore waters and whole sediments from the Grand Calumet River-Indiana Harbor, Indiana area of concern. All toxicity tests indicated that the test fractions (pore water, whole sediment) from each study site were toxic to the test species. A toxic units (TU) approach was used to compare measured TU from each assay with calculated TU based on chemical analyses of pore waters and whole sediments and the results of reference toxicant tests. Based on the results of these analyses, ammonia, polycyclic aromatic hydrocarbons, metals, petroleum hydrocarbons, and bicarbonate ion appear to be the major contaminants of environmental significance to benthic invertebrates within the study area.

Animals↗
PubMed1976

Synthesis of RNA by mutants of vesicular stomatitis virus (Indiana serotype) and the ability of wild-type VSV New Jersey to complement the VSV Indiana ts G I-114 transcription defect.

The ability of certain vesicular stomatitis virus (VSV; Indiana serotype) temperature-sensitive (ts) mutants to synthesize intracellular viral complementary RNA (vcRNA) at permissive or nonpermissive temperatures for productive infections has been investigated. Mutants belonging to complementation groups II, III, and V synthesize RNA at nonpermissive temperature in amounts essentially equivalent to that obtained at permissive temperatures. Mutant ts G I-114 possesses a thermolabile transcriptase and does not synthesize vcRNA at 40 degrees C; however, mutants ts O I-5, O I-53, O I-78, and O I-80 possess thermostabile transcriptases that are capable of some vcRNA synthesis at 40 degrees C. All five group I mutants are defective in their secondary transcription ability at 40 degrees C. Wild-type VSV New Jersey virus is able to complement the transcription defect of ts G I-114 at 40 degrees C. This complementation is inhibited by puromycin, suggesting that a viral gene product of VSV New Jersey (e.g., its transcriptase or a transcriptase component) is involved. Mokola virus is not able to complement the ts G I-114 defect, although Mokola does synthesize vcRNA in infected cells (in the presence or absence of cycloheximide).

Cycloheximide↗
PubMed2000

Supply, distribution, and capacity of optometrists in Indiana.

BACKGROUND: The Indiana Optometric Association and the Indiana Health Care Professional Development Commission identified a need to collect and analyze data on the health professions workforce for formulating goals and strategies to accommodate demands for health care services in Indiana. This study looks at the supply, distribution, and services of optometrists practicing in Indiana. METHODS: Data compiled by the Indiana State Department of Health, Indiana Health Care Development Commission, and the Project HOPE Center for Health Affairs were analyzed with the results of a survey of practitioner members of the Indiana Optometric Association. Supply, distribution, services, provider-to-population ratios, per capita demand, and optometric productivity were used to evaluate the current and future capacity of Indiana optometrists to the year 2010. RESULTS: An estimated 893 optometrists practiced in 86 of 92 counties and comprised 77% of the state's licensed eye and vision care workforce in 1995. Optometric workforce capacity appeared to be related to county population, but unrelated to the urban/rural classification or the per-capita income of Indiana counties. Contact lenses, disease, geriatrics, and pediatrics were the most prevalent areas of practice specialty. CONCLUSIONS: Optometrist capacity in Indiana is sufficient at both the state and county levels, and optometric services are appropriately distributed such that patient access to optometric care is geographically unburdened. Estimates regarding supply are elastic, depending on the assumptions applied.

Health Personnel↗
PubMed1996

Management of late complications of continent urinary diversion using the Kock pouch and the Indiana pouch procedures.

BACKGROUND: Continent urinary diversion (CUD) is performed on patients after total cystourethrectomy due to invasive bladder cancer or other diseases requiring urinary diversion. Since 1984, we have performed CUD using either the Kock pouch procedure or a modified Indiana pouch method. During the long-term follow-up, increasing numbers of late complications occurred, especially after the Kock pouch procedure. We summarized the frequency of postoperative complications, their management, and outcome of CUD using these 2 methods. METHODS: Between 1984 and 1995, CUD using the Kock pouch method was performed on 102 patients, and on 61 patients using the Indiana pouch method, with a mean follow-up period of 83 and 50 months, respectively. The patients were between 24 and 82 years old, with a mean age of 59 years. In most patients, the Kock pouch was constructed according to the original method, except for the use of a Dacron fabric collar, and the Indiana pouch was made using the ileal patch method. RESULTS: Of 95 patients followed up for more than 3 months after CUD using the Kock pouch method, efferent and afferent nipple valve malfunction occurred in 21 (22%) and 26 (27%) patients, respectively. Efferent complications occurred during the first year after surgery, whereas afferent complications occurred several years after surgery. Open repair surgery (excluding ileus) was necessary for 36 (38%) patients. Of 59 patients followed for more than 3 months after CUD using the Indiana pouch method, 7 patients with stomal stenosis, 2 patients with stomal prolapse, and 1 patient with stricture at the ureterocolonic anastomosis were treated surgically. An hourglass-like deformity of the pouch was seen in 2 patients, on whom the original Indiana pouch method was performed. As a whole, 13 patients (22%) were retreated with open surgery. Urinary calculi occurred in 42 (44%) patients after CUD using the Kock pouch method and in 11 patients (19%) using the Indiana pouch method. The outcome was excellent, good, fair, and poor in 31, 37, 24, and 8% of the patients after CUD using the Kock pouch method, and in 36, 17, 42, and 5% of the patients after CUD using the Indiana pouch method. CONCLUSIONS: We performed CUD using either the Kock pouch or the Indiana pouch method with a success rate of approximately 90%. The rates of revision, reoperation and stone formation were higher with the Kock pouch procedure than with the Indiana pouch procedure, while varying degrees of incomplete incontinence and difficulty in catheterization were seen more often in the latter.

Adult↗
PubMed1996

Urinary calculi as a late complication of the Indiana continent urinary diversion: comparison with the Kock pouch procedure.

PURPOSE: Although urinary calculi have been frequent late complications of the Kock continent urinary diversion, they have not been regarded as significant problems in patients with the Indiana pouch because of the lack of foreign material present. However, stones developed in a significant percentage of our patients with an Indiana pouch. We investigated the characteristics of stone formation in patients with the Indiana pouch and compared them to those with a Kock pouch. MATERIALS AND METHODS: Detailed clinical courses regarding stone formation were reviewed in 72 patients with a Kock pouch and 54 with an Indiana pouch who had a minimum followup of 12 months. RESULTS: Stones developed in 7 of 54 patients (12.9%) with an Indiana pouch compared to 31 of 72 (43.1%) with a Kock pouch. The incidence gradually increased with longer followup but it was lower in the Indiana than in the Kock pouch group (5-year stone-free rate 84% versus 66%, respectively). Although the stones consisted principally of a mixture of struvite, carbonate apatite and ammonium hydrogen urate, variable amounts of calcium oxalate were identified in 50% of the Indiana pouch calculi. CONCLUSIONS: Not only urinary infections but also metabolic factors were considered to be involved in stone formation within the Indiana pouch. However, the substantially higher rate of stone formation in our Kock and Indiana pouch groups than has been reported in the United States suggested that no or infrequent pouch irrigations in our patients were important risk factors for urinary calculi.

Case-Control Studies↗
PubMed1993

Long-term followup of the Kock and Indiana pouch procedures.

Between 1984 and 1991, 115 consecutive patients underwent cutaneous continent urinary diversion comprising 76 Kock and 39 Indiana pouch procedures. The 2 different forms of achieving continent urinary diversion were subsequently compared in a long-term followup that evaluated complications, including pouch function and the need for revisions. In the Kock pouch group there were 14 (18.4%) early postoperative complications (3 months), which required 4 subsequent reoperations (5.3%). The Indiana pouch group had a similar incidence of early complications (17.9%) but there were no reservoir related problems. The long-term study group comprised 68 Kock and 37 Indiana pouch patients who were observed for 12 months or longer (mean followup 53 and 34 months, respectively). Of 9 efferent nipple valve malfunctions observed in the Kock pouch group 5 required surgical revision. Of 16 complications related to afferent limb function 15 were caused by the use of polyester fiber fabric for the anchoring collar and 8 of these 15 complications required surgical revision. The first 2 Indiana pouch patients had pouch deformities due to incomplete detubularization of the cecum that required surgical repair. Overall, surgical revisions, including minor repairs, were performed on 15 Kock pouch patients (22.1%) and 4 Indiana pouch patients (10.8%). Both forms of the procedure preserved continence to a satisfactory degree. Urinary tract stones developed in 18 patients (26.5%) from the Kock pouch group, usually on the exposed staples or the eroded, nonabsorbable collar used to construct the nipple valves. Stone formation was rare (5.4%) in the Indiana pouch group. The incidence of ureteral implantation stricture was low in both procedures. There was no significant difference in the incidence of bacteriuria between the 2 methods of urinary diversion. These data demonstrate that the Kock pouch and Indiana pouch procedures can be accomplished with the same early postoperative complication rate. Our 8-year experience showed a high incidence of Kock afferent nipple valve malfunction. However, most of these malfunctions were due to the use of a nonabsorbable collar and can be avoided. When taking this into account, therefore, it can be concluded that the Indiana pouch functions as well as the Kock pouch with roughly the same incidence of late complications and the same reoperation rate but with a lower incidence of stone formation.

Adult↗
PubMed1989

A comparative study of the ileal conduit, Kock pouch and modified Indiana pouch.

Between July 1986 and July 1988, 55 urinary diversions were performed, including 18 ileal conduits, and 12 Kock and 25 Indiana pouch procedures. The different forms of urinary diversion were compared for patient selection, operative technical demands, postoperative complications, perioperative renal function and short-term followup, including rehospitalizations, revisions and pouch function. Patient selection was the same for the ileal conduit and Indiana pouch groups. Kock pouch patients were more highly selected for youth and health status. The operative technical demands of the ileal conduit and Indiana pouch were similar. The average operative time and blood loss for cystectomy and ileal conduit were 5 hours 27 minutes and 1,290 cc versus 5 hours 30 minutes and 1,201 cc for the Indiana pouch group. Postoperative complications and changes in renal function were similar among all 3 groups except for an increase in urinary anastomotic leaks in heavily irradiated ileal conduit patients. The ileal conduit patients required no rehospitalizations or revisions, the Indiana pouch group had 4 rehospitalizations and no revisions, and the Kock pouch group had 9 rehospitalizations and 3 revisions. The day and nighttime continence rate was 100% in the Indiana and Kock pouch groups. The Indiana pouch has similar technical demands as the ileal conduit, similar postoperative complications as the ileal conduit or Kock pouch, and functions well with a low revision rate. We conclude that the modified Indiana pouch can be accomplished safely and effectively in any patient requiring an ileal conduit.

Adult↗
PubMed1991

A comparative study of the ileal conduit, Kock pouch and modified Indiana pouch.

Between July 1986 and July 1988, 55 urinary diversion procedures were performed: 18 ileal conduits, 12 Kock pouches and 25 Indiana pouches. The different forms of urinary diversion were compared for patient selection, operative technical demands, postoperative complications, perioperative renal function, and short-term followup including re-hospitalizations, revisions, and pouch function. Patient selection was the same for the ileal conduit and Indiana pouch patients. Kock pouch patients were more highly selected for youth and health status. The operative technical demands of the ileal conduit and Indiana pouch were similar. The average operative time and blood loss for cystectomy and ileal conduit was 5:27 hours and 1290 cc's versus 5:30 hours and 1201 cc's for the Indiana pouch group. Postoperative complications and changes in renal function were similar among all three groups except for an increase in urinary anastomotic leaks in heavily irradiated ileal conduit patients. The ileal conduit patients required no re-hospitalizations or revisions; the Indiana pouch group had four re-hospitalizations and no revisions; the Kock pouch group had nine re-hospitalizations and three revisions. The day and night-time continence rate was 100% in both the Indiana and Kock pouch groups. The Indiana pouch has similar technical demands as the ileal conduit, has similar postoperative complications as the ileal conduit or Kock pouch, and functions well with a low revision rate. We conclude that the modified Indiana pouch can be just as safely and effectively accomplished in any patient requiring an ileal conduit.

Adult↗