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At least 487 records · Page 27Linked to original sources

PubMed2000

[First report of Aedes albopictus in areas of Mata Atlantica, Recife, PE, Brazil].

This is the first report of the presence of Aedes albopictus in the native rain forest, near the urban area of Recife (State of Pernambuco, Brazil). Adult female mosquitoes were collected using human bait. Mosquitoes in aquatic stages were looked for in treeholes, bamboos, bromeliads and old tires. The existence of Ae. albopictus in the metropolitan area of Recife poses a potential risk for the interaction of this mosquito species with the urban human population.

Aedes↗

PubMed2004

Characterization of the imaginal reproductive diapause of Oebalus poecilus (Dallas) (Hemiptera: Pentatomidae).

The state of development of the internal reproductive organs of male and female Oebalus poecilus (Dallas) as well as the body fat amount in the abdominal cavity during hibernation, of individuals sampled in bamboo litter in Eldorado do Sul (30 masculine 02'S and 51 degrees 23'W), RS, Brazil was investigated. Females and males showed the abdominal cavity filled with body fat in the beginning of the hibernation phase. The decrease in fat reserve level occurred from August on for males and from October on for females. Ovaries and testis doubled in length and tripled in width from immature to the reproductive phase. Male sexual maturation occurred in the hibernation sites while for females it occurred later on outside of the sites. Reproductive organ immaturity and abdominal body fat hypertrophy characterized the diapause of O. poecilus.

Adipose Tissue↗

PubMed2001

Analysis of a historical cohort of Chinese tin miners with arsenic, radon, cigarette smoke, and pipe smoke exposures using the biologically based two-stage clonal expansion model.

Hazelton, W. D., Luebeck, E. G., Heidenreich, W. F. and Moolgavkar, S. H. Analysis of a Historical Cohort of Chinese Tin Miners with Arsenic, Radon, Cigarette Smoke, and Pipe Smoke Exposures Using the Biologically Based Two-Stage Clonal Expansion Model. Radiat. Res. 156, 78-94 (2001).The two-stage clonal expansion model is used to analyze lung cancer mortality in a cohort of Yunnan tin miners based on individual histories with multiple exposures to arsenic, radon, cigarette smoke, and pipe smoke. Advances in methodology include the use of nested dose-response models for the parameters of the two-stage clonal expansion model, calculation of attributable risks for all exposure combinations, use of both a fixed lag and a gamma distribution to represent the time between generation of the first malignant cell and death from lung cancer, and scaling of biological parameters allowed by parameter identifiability. The cohort consists of 12,011 males working for the Yunnan Tin Corporation, with complete exposure records, who were initially surveyed in 1976 and followed through 1988. Tobacco and arsenic dominate the attributable risk for lung cancer. Of 842 lung cancer deaths, 21.4% are attributable to tobacco alone, 19.7% to a combination of tobacco and arsenic, 15.8% to arsenic alone, 11% to a combination of arsenic and radon, 9.2% to a combination of tobacco and radon, 8.7% to combination of arsenic, tobacco and radon, 5.5% to radon alone, and 8.7% to background. The models indicate that arsenic, radon and tobacco increase cell division, death and malignant conversion of initiated cells, but with significant differences in net cell proliferation rates in response to the different exposures. Smoking a bamboo water pipe or a Chinese long-stem pipe appears to confer less risk than cigarette use, given equivalent tobacco consumption.

Adolescent↗

PubMed1995

[Undifferentiated connective tissue syndromes (UCTS) accompanied by laryngeal involvement and autoimmune hepatitis].

Here we report a patient with undifferentiated connective tissue syndromes (UCTS) who developed hoarseness during exacerbation of autoimmune hepatitis. A 51-year-old woman was hospitalized in November 1993 because of hoarseness and liver dysfunction. She had demonstrated Raynaud's phenomenon, polyarthralgia and hoarseness since 1992. In August 1993, liver dysfunction was noted. On admission, laboratory data showed mild leukopenia, thrombocytopenia (WBC 3,900/mm3, platelet 12.4 x 10(4)/mm3), and elevations of transaminase (GOT 96 IU/l, GPT 79 IU/l) and IgG (4,556 mg/dl). Anti-nuclear antibody (ANA) and anti-smooth muscle antibody were positive. Other autoantibodies including anti-DNA antibody, anti-Scl 70 antibody were all negative. LE test and LE cells were also negative. On laryngoscopic examination, lesions that appeared similar to a bamboo-joint were noted at the middle of the bilateral vocal cords. Pathological findings of liver biopsy specimen were compatible with autoimmune hepatitis. She was treated with 30 mg of prednisolone. Polyarthralgia, hoarseness and the abnormalities of the transaminase levels improved rapidly. Laryngoscopic findings were also normalized. We considered this laryngeal involvement to be acute laryngitis accompanied by some UCTS, including a typical systemic lupus erythematosus (SLE) because of arthritis, cytopenia and ANA positivity. Involvement of the larynx in collagen disease is rarely mentioned in published reports.

Anti-Inflammatory Agents↗

PubMed1999

[A case report; systemic lupus erythematosus associated with lupus laryngitis].

Systemic lupus erythematosus (SLE) is an autoimmune collagen vascular disease which produces widespread damage to multiple organs. Few studies on laryngeal involvement in SLE have been reported. We report here a case of SLE complicated by lupus laryngitis. A 27-year-old woman was diagnosed as having SLE in October 1996 based on findings of polyarthritis, lymphocytopenia, positive anti-nuclear antibody and anti-Sm antibodies. Polyarthralgia disappeared transiently, and no other clinical symptoms were found. Therefore, she was followed with no medication. She presented hoarseness with high fever and facial erythema in September 1998. Laboratory findings on admission revealed pancytopenia and hypocomplementemia. Anti-nuclear antibody, anti-Sm antibody and anti-RNP antibody were all positive with high titers. Chest X ray examination showed pleural effusion. Laryngoscopy showed a bamboo-joint-like lesion at the middle of the bilateral vocal cords. She was treated with 60 mg of prednisolone (i.v.) which resulted in improvement of hoarseness, pancytopenia, hypocomplementemia and pleuritis. Based on these findings, we diagnosed her hoarseness as the manifestation of laryngitis associated with SLE (lupus laryngitis).

Adult↗

PubMed2005

Mosquito collections in the Jeypore Hill tracts of Orissa, India, with notes on three new country records, Culex (Lophoceraomyia) pilifemoralis, Culex (Lophoceraomyia) wilfredi, and Heizmannia (Heizmannia) chengi.

The occurrence of Culex (Lophoceraomyia) pilifermoralis, Cx. (Lop.) wilfredi, and Heizmannia (Heizmannia) chengi is reported for the first time from India from mosquito collections made in the Jeypore hills, Orissa. In collections made during October 1998 from 10 locations, 74 species belonging to 12 genera and 20 subgenera were recorded. Larvae of 40 species were obtained from different larval habitats like bamboo, leaf axils, fallen logs, paddy fields, ponds, ground pools, rock pools, streams, and tree holes. Together with the 14 anopheline species from earlier records, this report brings to 88 the number of mosquito species in the Jeypore hills.

Animals↗

PubMed2006

Injuries of the cervical spine in patients with ankylosing spondylitis: experience at two trauma centers.

OBJECT: The cervical spine in a patient with ankylosing spondylitis (AS) (Bechterew disease) is exposed to maximal risk due to physical load. Even minor trauma can cause fractures because of the spine's poor elasticity (so-called bamboo spine). The authors conducted a study to determine the characteristics of cervical fractures in patients with AS to describe the standard procedures in the treatment of this condition at two trauma centers and to discuss complications of and outcomes after treatment. METHODS: Between 1990 and 2006, 37 patients were surgically treated at two institutions. All patients were examined preoperatively and when being discharged from the hospital for rehabilitation. Single-session (11 cases) and two-session anterior-posterior (13 cases), anterior (11 cases), posterior (two cases), and laminectomy (one case) procedures were performed. The injury pattern, segments involved, the pre- and postoperative neurological status, and complications were analyzed. Preoperative neurological deficits were present in 36 patients. All patients experienced improvement postoperatively, and there was no case of surgery-related neurological deterioration. In patients in whom treatment was delayed because of late diagnosis, preoperative neurological deficits were more severe and improvement worse than those treated earlier. The causes of three deaths were respiratory distress syndrome due to a rigid thorax and cerebral ischemia due to rupture of the vertebral arteries. There were 12 perioperative complications (32%), three infections, one deep venous thrombosis, five early implant failures, and the three aforementioned fatalities. There were no cases of epidural hematoma. In all five cases in which early implant failure required revision surgery, the initial stabilization procedure had been anterior only. A comparison of complications and the outcomes at the two centers revealed no significant differences. CONCLUSIONS: The standard intervention for these injuries is open reduction, anterior decompression and fusion, and anterior-posterior stabilization; these procedures may be conducted in one or two stages. Based on the early implant failures that occurred exclusively after single-session anterior stabilizations (five of 10--a failure rate of 50%), the authors have performed only posterior and anterior procedures since 1997 at both centers. Diagnostic investigations include computed tomography scanning or magnetic resonance imaging of the whole spine, because additional injuries are common. The causative trauma may be very slight, and diagnosis may be delayed because plain radiographs can be initially misinterpreted. In cases in which diagnosis is delayed, patients present with more severe neurological deficits, and postoperative improvement is less pronounced than that in patients in whom a prompt diagnosis is established. Because of postoperative pulmonary and ischemic complications, the mortality rate is high. In the present series the mortality rate was lower than the mean rate reported in the literature.

Adult↗

PubMed2002

[A study of human enteric nervous system development in the middle stage of embryogenesis]

OBJECTIVE: To investigate the development of the enteric nervous system(ENS) in the middle stage(the 4th approximate, equals 6th months) of human embryogenesis. METHODS: A histologic evaluation of the clonic enteric nervous system was done using NADPHd histochemistry, PAP immunohistochemistry, with anti-PGP 9.5 and anti-S-100 protein. RESULTS: During this stage of embryology three things were noted. (1)The nerves in the myenteric layer increased markedly. This was shown by the PGP 9.5 immunoreactive nerves spreading out and the S-100 protein immunoreactive nerves forming a "bamboo basket"pattern. (2)The whole myenteric colon showed nitrigeric nerves paralleling the growth of the myofibers in the circular muscle layer. Nitrigeric perikara were rarely found in the extrinsic submucosal layer.(3) In the whole-mounted preparations reactive nerves formed the complex nerve net in the myenteric layer. CONCLUSION: The middle stage of embryogensis is very important to the development of the colon ENS.

Journal Article↗

PubMedDate not supplied

Clarification of the host substrate of Ascopolyporus and description of Ascopolyporus philodendrus sp. nov.

During a recent collection trip to Barro Colorado Island, Panama, two species belonging to genus Ascopolyporus (Clavicipitaceae, Hypocreales) were collected. Species of Ascopolyporus are epibionts of their bamboo (Poaceae) host and long thought to be biotrophs of their plant hosts. However, based on morphological observations and phylogenetic evidence using large subunit ribosomal DNA data, we propose that genus Ascopolyporus is likely composed of pathogens of scale insects (Coccoideae, Homoptera). Phylogenetic analyses included Ascopolyporus spp. in a clade containing only entomopathogenic clavicipitaceous species (100% posterior probability), and the scale insect pathogen Hyperdermium bertonii was found to share the most recent common ancestor with the Ascopolyporus clade (98% posterior probability). In addition remnants of the scale insect were observed to be embedded within stromata during early stages of stroma development. Ascopolyporus philodendrus sp. nov. was described and distinguished from the type species of the genus, A. polychrous, based on perithecial size, ascus size, plant host substrate and phylogenetic evidence. Furthermore subfamily Clavicipitoideae (Clavicipitaceae) was included and well supported in a single clade (100% posterior probability).

Ascomycota↗

PubMedDate not supplied

Epidermal inclusion cyst in the foot of a Vietnam Veteran.

Epidermal inclusion cysts are soft-tissue lesions that result from traumatic implantation of epidermal cells into the dermis. A case report is presented involving a large recurrent plantar inclusion cyst secondary to trauma sustained in the Vietnam War. The patient reported that the initiating trauma was the result of stepping on a punji stake in Vietnam. Punji stakes, sharpened spikes typically made of bamboo and dipped in poison or excrement, were used by the Vietnamese soldiers to wound enemy soldiers. Careful excision of the lesion is imperative to prevent recurrence.

Epidermal Cyst↗

PubMed1998

[A case of psoriatic arthritis associated with ankylosing spondylitis treated with bilateral total hip arthroplasty].

We report a case of a 40-year-old male with psoriatic arthritis associated with ankylosing spondylitis. At the age of 34, the patient suffered pain in his hips, knees, ankles, neck and low back 3 years after the onset of psoriasis vulgaris. The hip pain gradually became severe despite the medical treatment and physical therapy. On admission, the skin lesion of diffuse erythematous plaques with scales was observed on the trunk and extremities. Motion of the spine was markedly limited. We also noted limitation of motion in the bilateral hips and remarkable gait disturbance. In laboratory findings, rheumatoid factor and HLA-B 27 antigen were negative. Radiographs of the cervical spine showed typical bamboo spine as seen in ankylosing spondylitis. Obliteration of the sacroiliac joints and joint space narrowing in the hips with reactive sclerosis were revealed on the pelvic film. Bilateral cementless total hip arthroplasty with adductor tenotomy resulted in complete pain relief and a marked improvement in gait function 18 months after surgery. The appropriate reconstructive surgery was extremely helpful to increase daily activities of the patient in this case.

Adult↗

PubMed1999

Breeding habitats & seasonal variation in the larval density of Aedes aegypti (L) & Ae. albopictus (Skuse) in an urban garden in Calcutta city.

A longitudinal study on the breeding habitats and variation in the relative larval density of Ae. aegypti and Ae. albopictus was conducted in an urban garden in Calcutta city. The observations of the study, during October 1995 to September 1996 revealed that both the species showed preference for breeding in earthen, and cement pots, plant pots, chowbachhas and molluscan shells. Ae. albopictus larvae were also found in accumulations of water in bamboo stumps and tree holes. The container positivity and relative larval density of both species was highest during monsoon (June 1996-September 1996) and lowest during summer (February 1996-May 1996). The seasonal variation in container index (CI) of each species was statistically significant (P < 0.05) and showed a positive correlation with rainfall, the seasonal variation in the larval density of both Ae. aegypti and Ae. albopictus in permanent breeding sites was however not statistically significant, indicating that the CI and relative larval density of the two species was unaffected by temperature and humidity. The variation between the larval density and their CI in the same season was not significant, suggesting a perfect adaptation of Ae. aegypti, an urban, and Ae. albopictus, a sylvatic species, to more or less similar aquatic biotypes in an urban garden.

Aedes↗

PubMed2000

Phylogenetic structure in the grass family (Poaceae): evidence from the nuclear gene phytochrome B.

Phylogenetic analyses of partial phytochrome B (PHYB) nuclear DNA sequences provide unambiguous resolution of evolutionary relationships within Poaceae. Analysis of PHYB nucleotides from 51 taxa representing seven traditionally recognized subfamilies clearly distinguishes three early-diverging herbaceous "bambusoid" lineages. First and most basal are Anomochloa and Streptochaeta, second is Pharus, and third is Puelia. The remaining grasses occur in two principal, highly supported clades. The first comprises bambusoid, oryzoid, and pooid genera (the BOP clade); the second comprises panicoid, arundinoid, chloridoid, and centothecoid genera (the PACC clade). The PHYB phylogeny is the first nuclear gene tree to address comprehensively phylogenetic relationships among grasses. It corroborates several inferences made from chloroplast gene trees, including the PACC clade, and the basal position of the herbaceous bamboos Anomochloa, Streptochaeta, and Pharus. However, the clear resolution of the sister group relationship among bambusoids, oryzoids, and pooids in the PHYB tree is novel; the relationship is only weakly supported in ndhF trees and is nonexistent in rbcL and plastid restriction site trees. Nuclear PHYB data support Anomochlooideae, Pharoideae, Pooideae sensu lato, Oryzoideae, Panicoideae, and Chloridoideae, and concur in the polyphyly of both Arundinoideae and Bambusoideae.

Journal Article↗

PubMed1999

Multimedia unplugged: a workshop on learning designs at the neoMuseum, Japan.

In Japan, we have a growing field called 'Information Education,' but people are paying too much attention to computers and the internet. That's why I am proposing unplugging the computer and thinking about the more essential aspects of learning and information design. 'Unplugged' means that technology and multimedia need not be limited to digital forms. Pencil-and-paper and traditional 'by hand' media also have important roles to play. In the Multimedia Unplugged workshop, participants use different forms of expression and media, including paper and styrofoam cubes, freeform construction kits and a wide variety of everyday objects, like bamboo leaves and post-it papers. Through this workshop, participants can understand that each medium has its own constraints and opportunities, and have a change to rethink the roles of multimedia from new perspectives. They can then replug and thus be able to choose appropriate media--digital or physical or both--to express their ideas.

Art↗

PubMed2000

[Complex visual hallucination in the quadrantanopsic field in a patient with a medial temporal hematoma following left putaminal hemorrhage].

A 56-year-old man with a left medial temporal lobe hematoma from the left putaminal hemorrhage presented with complex visual hallucinations in the right quadrantanopsic field. In the right superior quadrantanopsic field, he saw colored and formed hallucinations of plants, bamboo thickets and a stature of bodhisattva. Most of these hallucinations were what he had actually seen before. The visual hallucinations disappeared when he gazed them with saccadic eye movements. EEG showed no epileptic discharges. MRI revealed hematoma from the lower putamen to the medial temporal lobe including amygdala on the left. 123I-IMP SPECT showed hypoperfusion in the left temporal lobe and in the left occipital and parietal lobes. We speculate that the hallucinations of the present case were produced by the dysfunctions not only of the temporooccipital and temporoparietal regions but also of the posterior inferotemporal cortex which has strong interactions with amygdala and works as the visual memory center.

Amygdala↗

PubMed2000

Clinical, radiological, and laboratory findings in Lebanese spondylarthropathy patients according to HLA-B27 status.

UNLABELLED: To evaluate clinical, radiologic, and laboratory features in Lebanese spondylarthropathy patients according to HLA-B27 status. METHODS: We retrospectively compared demographic, clinical, radiologic, and severity data in 40 HLA-B27-positive and 58 HLA-B27-negative patients. All 98 patients met Amor's or European Spondylarthropathy Study Group criteria for spondylarthropathy, and 51.7% met New York modified criteria for ankylosing spondylitis. RESULTS: Onset before 16 years of age, hip involvement, and an elevated mean erythrocyte sedimentation rate were significantly associated with the presence of the HLA-B27 (32.5 vs 13.8%, P=0.02; 45 vs 7.5%, P=0.001; and 47.7 vs 25.4, P=0.02; respectively). The two groups were comparable for age, sex ratio, prevalence and distribution of spondylarthropathy types, family history, sacroiliitis, bamboo spine, syndesmophytes, peripheral joint involvement, enthesopathies, extra-articular involvement, response to nonsteroidal anti-inflammatory drugs, and need for other medications. CONCLUSION: In Lebanon, spondylarthropathy patients positive for HLA-B27 experience disease onset at an earlier age, are more likely to develop hip involvement, and have laboratory evidence of more severe inflammation than their HLA-B27-negative counterparts. None of the other clinical and radiologic parameters are modified by HLA-B27 status.

Adult↗

PubMed2001

[Injuries of the cervical spine in patients with ankylosing spondylitis].

A brittle and rigid, osteoporotic and injury prone "bamboo" spine which develops as a result of transformation of the normal spine in the final stage of Bekhterev's disease contains normal neural elements. Unstable fractures occur frequently even after a minimal injury and the morbidity and mortality is significantly higher than in the group of routine injuries of the cervical, spine, in particular as a result of pulmonary complications. Diagnosis of the fracture based on simple X-ray pictures is difficult, CT examination is essential. The authors present an account on their experience with three patients. They draw attention to problems of skeletal traction when the spinal axis is altered by disease and to risks associated with semiconservative treatment. The authors therefore recommend traction with a minimal load and with subsequent early decompression and stabilization by a combined anterior and posterior approach in a single session. By this approach secondary affection of neural structures in unstable fractures can be prevented, and early rehabilitation with verticalization without restriction of respiratory excursions by an orthesis then significantly reduces the risk of pulmonary complications.

Aged↗

PubMed1975

["Pearl-string artery" with mesenteric localization].

Angiorgrams sometimes show regular and symetrical corrugations of the arterial outline. The shadows have been given various names: pearl string arter, bamboo pattern and so on. Involved arteries are mostly those of the extremities, especially the lower limbs. The authors have found a case involving the mesenteric artery. Usually, there is no pathological state of the arterial wall. Thus, surgical action is unnecessary.

Adult↗