RESUMO
A new species belonging to the Dothideomycete genus Acanthostigma is described from bark of two Nothofagus species from Argentina. Its identity as a new species is based on both morphology and molecular sequence data. Acanthostigma patagonica differs from other species in the genus by having larger ascomata and setae and wider, asymmetrical ascospores. An amended key to Acanthostigma species is provided along with a discussion of other species previously described from South America.
Assuntos
Ascomicetos/classificação , Fagaceae/microbiologia , Ascomicetos/genética , Ascomicetos/ultraestrutura , DNA Fúngico/análise , DNA Fúngico/genética , DNA Ribossômico/análise , DNA Ribossômico/genética , Geografia , Dados de Sequência Molecular , Filogenia , Análise de Sequência de DNA , América do Sul , Esporos Fúngicos/ultraestruturaRESUMO
The influence of CO on the passive behavior of copper was analyzed in the potential region near the rest potential in borax solutions (pH 9.2) by cyclic voltammetry, ellipsometry, and surface charge determination techniques. The oxide formation is explained as a sequence of Cu(2)O growth, cation adsorption, Cu(II), and dissolution steps, similarly to previously reported investigations for the metal in free CO solutions. The CO adsorption hinders the cationic defect in the outer oxide layer and accelerates the Cu(2)O growth both at open circuit and in controlled potential experiments. The isoelectric point, iep, obtained at pH 10.8 for both the metal Cu and CuO particles in KCl solutions shifts to pH 10.1 for copper particles in the presence of CO. The iep indicates a CuO coating on Cu metallic particles in the absence of CO.
RESUMO
By an bromodeoxyuridine (BrdU) incorporation assay, it was proved hat an IgG 1 subclass, murine monoclonal antibody to surface protein SAG2 of Toxoplasma gondii is capable of reducing the invasion and multiplication of the parasites in highly differentiated mucine secretory HT29-18N2 line cells from a human colon adenocarcinoma. This result shows the importance of surface protein SAG2 of T.gondii in invasion and further multiplication of parasites in the host cell.
Assuntos
Anticorpos Monoclonais/farmacologia , Antígenos de Protozoários/imunologia , Mucosa Intestinal/citologia , Mucosa Intestinal/parasitologia , Proteínas de Protozoários/imunologia , Toxoplasma/efeitos dos fármacos , Toxoplasma/crescimento & desenvolvimento , Animais , Células Cultivadas , Colo/citologia , Colo/parasitologia , Células HT29 , Humanos , CamundongosRESUMO
The structural abnormalities of the genitourinary tract and cervical/vaginal infections are common in patients with diabetes mellitus. The objective was to determine the prevalence of gynecological abnormalities in diabetic women and to investigate its association with different variables. Diabetic women, aged 20 years and older who were attending the diabetic outpatient clinic, were randomly selected. All patients underwent a clinical and gynecological examination and a urianalysis, and papanicolaou. Smear were obtained. A total of 98 women, 84.7% type 2 diabetics, with a mean age of 57 +/- 13 years were included. Uretherocele, cystocele and/or rectocele were present in 19% and cervicitis in 22% of the patients. Urinary incontinence (OR 3.1, p = 0.03) and the history of multiparity (OR 4.2, p = 0.03) were statistically associated with these structural abnormalities. The symptom of vaginal discharge (OR 3.8, p = 0.01) was the only one variable that correlated with cervicitis. By comparing patients with and without cervicitis or gynecologic abnormalities, no significant differences were observed related to the type, duration or treatment of diabetes, blood glucose control or the evidence of leukocyturia in the urine sample. There is an elevated prevalence (31%) of gynecological abnormalities (cervicitis and/or structural abnormalities) in diabetic women, and are mostly asymptomatic.
Assuntos
Complicações do Diabetes , Doenças dos Genitais Femininos/epidemiologia , Doenças dos Genitais Femininos/etiologia , Idoso , Feminino , Humanos , PrevalênciaRESUMO
Fifty cases of tuboperitoneal endometriosis with sterility, are reviewed. Laparoscopy was done in all the patients to confirm disease, and its severity was classified to AFS; 18 cases were of minimal endometriosis; 8 slight; 12 moderate; and 12 severe. The endometriotic profile in our environment is described and compared with which has been described in progresist countries; 32% of pregnancy at term, was obtained. The possible mechanisms producing sterility, are mentioned.
Assuntos
Endometriose/complicações , Neoplasias das Tubas Uterinas/complicações , Infertilidade Feminina/etiologia , Neoplasias Peritoneais/complicações , Adulto , Endometriose/patologia , Endometriose/terapia , Neoplasias das Tubas Uterinas/patologia , Neoplasias das Tubas Uterinas/terapia , Feminino , Humanos , Neoplasias Peritoneais/patologia , Neoplasias Peritoneais/terapiaRESUMO
One hundred and fifty patients with neuroendocrine alteration, mainly anovulation, proven by basal temperature and endometrial biopsy, were studied. Clinical history and basic examinations for sterility, were carried out. The neuroendocrine factor, alone or associated, was found in 35% of the patients studied for sterility. Primary sterility was 59.3% of the cases. The vagino-cervico-spermatic factor was the most frequent one associated to the neuroendocrine one (28%). Ovulation was induced in 62.6% of the cases. Pregnancy was achieved in 65 patients (43.3%; 80% reached term, and 20% were abortions.