Genetic relationships between Japanese native and commercial breeds using 70 chicken autosomal SNP genotypes by the DigiTag2 assay

Recently, single nucleotide polymorphisms (SNPs) have been used to identify genes or genomic regions responsible for economic traits, including genetic diseases in domestic animals, and to examine genetic diversity of populations. In this study, we genotyped 70 chicken autosomal SNPs using DigiTag2 assay to understand the genetic structure of the Japanese native chicken breeds Satsumadori and Ingie, and the relationship of these breeds with other established breeds, Rhode Island Red (RIR), commercial broiler and layer. Five breeds, each consisting of approximately 20 chickens, were subjected to the assay, revealing the following: Average expected heterozygosities of broiler, Satsumadori, RIR, layer and Ingie were 0.265, 0.254, 0.244, 0.179 and 0.176, respectively. Phylogenetic analysis using the concatenated 70 autosomal SNP genotypes distinguished all chickens and formed clusters of chickens belonging to the respective breeds. In addition, the 2-D scatter plot of the first two principal components was consistent with the phylogenic tree. Taken together with the pairwise F(st) distances, broiler and RIR were closely positioned near each other, while Ingie was positioned far from the other breeds. Structure analysis revealed that the probable number of genetic clusters (K) was six and four with maximum likelihood and ΔK values, respectively. The clustering with maximum likelihood revealed that, in addition to the clustering of the other five breeds, the Satsumadori was subdivided into two genetic clusters. The clustering with ΔK value indicated that the broiler and Rhode Island Red were assigned to the same genetic cluster.

Combining FIB milling and conventional Argon ion milling techniques to prepare high-quality site-specific TEM samples for quantitative EELS analysis of oxygen in molten iron

This paper reports a procedure to combine the focused ion beam micro-sampling method with conventional Ar-milling to prepare high-quality site-specific transmission electron microscopy cross-section samples. The advantage is to enable chemical and structural evaluations of oxygen dissolved in a molten iron sample to be made after quenching and recovery from high-pressure experiments in a laser-heated diamond anvil cell. The evaluations were performed by using electron energy-loss spectroscopy and high-resolution transmission electron microscopy. The high signal to noise ratios of electron energy-loss spectroscopy core-loss spectra from the transmission electron microscopy thin foil, re-thinned down to 40 nm in thickness by conventional Argon ion milling, provided us with oxygen quantitative analyses of the quenched molten iron phase. In addition, we could obtain lattice-fringe images using high-resolution transmission electron microscopy. The electron energy-loss spectroscopy analysis of oxygen in Fe(0.94)O has been carried out with a relative accuracy of 2%, using an analytical procedure proposed for foils thinner than 80 nm. Oxygen K-edge energy-loss near-edge structure also allows us to identify the specific phase that results from quenching and its electronic structure by the technique of fingerprinting of the spectrum with reference spectra in the Fe-O system.

Cervical large cell neuroendocrine carcinoma with cytologic presentation: a case report

BACKGROUND

Large cell neuroendocrine carcinoma (LCNEC) is a rare and aggressive cervical neoplasm. Few cytologic or colposcopic findings of LCNEC have been reported.

CASE

A 37-year-old woman, gravida 6, para 4, presented with vaginal bleeding for 3 months. The cervical smears showed cells dispersed as single cells or arranged as loosely cohesive sheets or glandlike aggregate and the nuclear size was almost 3-5 times larger than that of small lymphocytes. The cytologic, pathologic and immunohistochemical examinations suggested LCNEC. The patient underwent a radical hysterectomy and then received radiation and systemic chemotherapy.

CONCLUSION

Cytologic and colposcopic findings for LCNEC of the uterine cervix are reported. Patients with LCNEC have poor prognoses. Early diagnosis of the tumor is important.

[Acute limbic encephalitis and NMDA type-glutamate receptor]

We compared clinical characteristics and autoantibodies against GluRepsilon2 between 95 patients with nonparaneoplastic non-herpetic acute limbic encephalitis (NPNHALE) and 19 patients with non-herpetic acute encephalitis accompanying ovarian teratoma (NHAE-OT). Onset age (mean +/- SD) was 27.7 +/- 18.6 years old in NPNHALE, 27.5 +/- 6.5 in NHALE-OT. Preceding factors were found in 63.8% of patients with NPNHALE and 89.5% of patients with NHALE-OT (Fisher's exact test, p = 0.025), and major preceding factors were upper respiratory infections or fever in both groups. Symptoms at the onset were disorder of behavior and talk > seizures > impairment of consciousness in NPNHALE, and disorder of behavior and talk > seizures > disorientation in NHALE-OT. Symptoms at the acute stage were similar between NPNHALE and NHAE-OT, but duration of hospital stay was longer in NHAE-OT (209.0 days) than NPNHALE (87.5 days) (Mann Whitney test, p<0.0001). At the onset, cell counts in CSF were 51.6 +/- 66.4/mm3 and protein levels were 35.4 +/- 14.7 mg/dl, and IgG levels were 6.6 +/- 4.2 mg/dl in NHAE-OT, and these data were not significantly different between NPNHALE and NHAE-OT. In acute stage, autoantibodies against whole molecule of GluRepsilon2 in CSF were detected in 51.8% (29/56) of adult NPNHALE, and 40% (6/15) of NHAE-OT patients by immunoblot. These autoantibodies in both groups included epitopes to n-terminal of GluRepsilon2. Antibodies against NMDAR complex (Dalmau's method) in CSF were detected in 90.9% (10/11) of NHAE-OT patients.

Nitric oxide-cyclic guanosine monophosphate signaling in the local circuit of the cricket abdominal nervous system

The distribution of potential nitric oxide (NO) donor neurons and NO-responsive target neurons was revealed in the terminal abdominal ganglion (TAG) of the cricket. The expression of nitric oxide synthase (NOS) in the nervous system was examined by Western blotting using universal nitric oxide synthase (uNOS) antibody that gave about a 130 kDa protein band. Immunohistochemistry using the uNOS antibody detected neurons whose cell bodies are located at the lateral region of the TAG. These neurons expanded their neuronal branches into the dorsal-median region or the dorsal-lateral region of the TAG. NADPH-diaphorase histochemistry was performed to confirm the distribution of NOS-containing neurons. The distributions of cell bodies and stained neuronal branches were similar to those revealed by uNOS immunohistochemistry. NO-induced cGMP immunohistochemistry was performed to reveal NO-responsive target neurons. Most of the cell bodies stained by immunohistochemistry appeared at the dorsal side of the TAG. At the dorsal-median region, some unpaired neuronal cell bodies were strongly stained. Some efferent neurons whose axon innervate into each nerve root were strongly stained. The generation of NO in the TAG was detected by NO electrode. We found that NO is generally produced to maintain a basal concentration of 70 nM. Hemoglobin scavenged released NO from the ganglion. The concentration of NO was partly recovered when hemoglobin was replaced by normal saline. Application of 10 microM L-arginine that is a substrate of NOS increased NO release by approximately 10 nM. Furthermore, an excitatory neurotransmitter acetylcholine (ACh) also increased NO generation by approximately 40-50 nM in concentration in addition to the basal level of 70 nM. Optical imaging with fluorescent NO-indicator demonstrated that ACh-induced enhancement of NO release was transiently observed in the outer-edge region of TAG, where cell bodies of NOS-immunoreactive neurons were located. These results suggest that ACh accelerates NO production via neuronal events activated by ACh in the TAG.

Effect of chondroitin sulfate C on sperm capacitation and fertilization parameters in vitro in pigs

The objective of this study was to determine the effects of chondroitin sulfate C (CS-C) on sperm capacitation and fertilization parameters in vitro in pigs. Frozen-thawed ejaculated pig sperm (semen S-484) were incubated with fertilization medium containing CS-C (0-2mg/ml) for 1h and the capacitation rate with chlorotetracycline (CTC) assay was examined, which showed that CS-C increased the rate of incapacitation F pattern spermatozoa converted to capacitation B pattern sperm cell in concentration-dependent manner and mostly increased capacitation B pattern sperm cell and decreased acrosome reaction AR pattern sperm cell in 1mg/ml concentration. When sperm was incubated for 1, 2 and 4h in fertilization medium containing 1mg/ml CS-C, it showed that the capacitated B pattern sperm cell was significantly (p<0.01) increased and the AR pattern sperm cell was significantly decreased at each time point in the presence than in the absence of CS-C. For identifying the validity of CS-C in sperm capacitation, sperm-oocyte was inseminated in fertilization medium containing CS-C (0-2mg/ml) and the rate of fertilized oocytes was examined, which showed that the penetration rates significantly (p<0.05) increased from 0.5 to 1.0mg/ml concentrations (87.4-96.3%) compared with control (74.9%). For identifying the universality of CS-C in sperm capacitation, four different semens (boar S-484, S-454, D-815 and D-748) were incubated in fertilization medium containing CS-C (1mg/ml) for 2h, respectively, which showed that CS-C increased the rate of capacitation B pattern sperm cell and decreased acrosome reaction AR pattern sperm cell in each semen. And it showed that CS-C yielded a higher promote effect (93.9%, 83.9%, 60.7% and 44.9%, respectively) on sperm penetration compared to unaddition control (63.4%, 22.0%, 3.3% and 3.3%, respectively). Sperm-oocyte binding analysis showed that CS-C increased the number of sperm bound to oocyte compared unaddition control in each semen. These results suggested that CS-C is the efficient factor on sperm capacitation in pigs, CS-C may promote sperm from the incapacitated to capacitated state and sequentially prevent sperm from spontaneous acrosome reaction, and thus facilitate the sperm-zona binding and sperm penetration to oocyte.

Clinical implication of medroxyprogesterone acetate against advanced ovarian carcinoma: a pilot study

PURPOSE OF INVESTIGATION

The present study was performed to identify the effects of medroxyprogesterone acetate (MPA) plus adjuvant chemotherapy on advanced epithelial ovarian carcinoma (FIGO Stage III/IV).

METHODS

A total of 50 patients were enrolled in this study. A relatively low dose of MPA (200 mg/day) after surgery was administered in combination with platinum-based chemotherapy and the treatment was continued for two years. Patients' backgrounds were also analyzed.

RESULTS

Relapse-free survival (p < 0.05) and overall survival (p < 0.001) rates in FIGO Stage III/IV ovarian cancer patients with MPA combined chemotherapy were significantly longer than the control group. The effect was more prominent in the higher progesterone receptor expression group. The chemotherapy regimens (cyclophosphamide, doxorubicin and cisplatin vs paraplatin plus cyclophosphamide or paclitaxel) did not affect prognosis.

CONCLUSION

MPA with platinum-based chemotherapy as an adjuvant therapy might improve the prognosis in FIGO Stage III/IV epithelial ovarian cancer cases. A randomized controlled study is still needed for further analyses.

Prognostic implications of cimetidine on advanced serous ovarian carcinoma related to cyclooxygenase-2 expression

This study was performed to identify the contribution of cimetidine to chemotherapy for epithelial ovarian carcinoma. Cimetidine was administered two weeks before surgery in combination with platinum-based chemotherapy, and the treatment was continued for two years. Cyclooxygenase-2 (COX-2) expression was also evaluated. The chemotherapy regimens did not affect patient prognosis. The effect of cimetidine was more marked in patients who showed overexpression of COX-2. Platinum-based chemotherapy combined with cimetidine, as a first-line therapy, may improve the prognosis of patients with advanced serous ovarian carcinoma.

Preventive effects of glycyrrhizin on estrogen-related endometrial carcinogenesis in mice

We have previously reported on the inhibitory effect of Glycyrrhizae radix (Gl radix) on mouse endometrial carcinogenesis. The present study was performed to clarify the effects of Gl radix and glycyrrhizin (GL), the main part of Gl radix, on estradiol (E2)-related endometrial carcinogenesis. Both Gl radix and GL exerted a significant decrease in the COX-2, IL-1alpha and TNF-alpha mRNA expressions. GL generated a significant decrease in the incidence of endometrial adenocarcinoma. Accordingly, the preventive effects of Gl radix may be attributable to GL, thus being related with the suppression of COX-2, IL-1alpha and TNF-alpha. Gl radix and GL could therefore be a promising formula for the chemoprevention of human endometrial cancer.

Effects of selective estrogen receptor modulators and genistein on the expression of ERalpha/beta and COX-1/2 in ovarectomized mouse uteri

This study was performed to examine the effects of selective estrogen receptor modulators [tamoxifen (TAM) and toremifene (TOR)] and pure anti-estrogen, ICI-182780 (ICI, Faslodex) and soybean isoflavone, genistein (GE) on the expression of estrogen-stimulated c-fos/jun, ERalpha/beta and COX-1/2 in the uteri of ovarectomized mice. TAM, TOR, ICI and GE treatment significantly decreased the levels of estradiol (E2)-induced c-fos. ICI and GE treatment significantly decreased the levels of E2-induced c-jun and ERalpha expressions. High doses of TOR treatment significantly increased the E2-induced ERbeta expression. In contrast, ICI and GE treatment significantly decreased the levels of E,-induced COX-2 expression, thus suggesting that TOR and GE might prevent E2-related endometrial carcinogenesis.

Primary endodermal sinus tumor of the vulva in a 52-year-old woman with long-term survival: a case report

A postmenopausal 52-year-old Japanese woman with a 5-month history of a right labial tumor was referred to the Department of Obstetrics and Gynecology. The resected tumor had been diagnosed as a primary endodermal sinus tumor of the vulva with pT2N0M0 in 2001. Six courses of adjuvant chemotherapy using bleomycin, etoposide and cisplatin were administered. The patient was free of recurrence or metastasis 67 months after the initial treatment.

Pseudomyxoma peritonei and mucinous pyometral fluid arising from an ovarian borderline mucinous tumor: case report

An extremely rare case of a pseudomyxoma peritonei (PMP) and mucinous pyometral fluid, possibly arising from an ovarian borderline mucinous tumor is reported. A 68-year-old Japanese patient received an expolatory laparatomy under a working diagnosis of a PMP, left ovarian cystic tumor and an umbilical hernia. Surgery and platinum-based chemotherapy induced a 15-month disease-free condition.

Primary lymphoma of the uterine corpus: an unusual location for a common disease--case report

A case of a primary uterine corpus lymphoma in a 75-year-old woman is described. Immunohistochemical studies showed diffuse large B-cell type one. Primary lymphoma of the uterine corpus is considered to be an unusual location for a common disease.

Inhibitory effects of Hochu-ekki-to on endometrial carcinogenesis induced by N-methyl-N-nitrosourea and 17beta-estradiol in mice

An evaluation of the effects of a traditional Chinese herbal medicine, Hochu-ekki-to (Bu-zong-yi-qi-tang) on endometrial carcinogenesis was performed in experiments with female mice. In the short-term experiment, dietary exposure of Hochu-ekki-to (0.2% for 2 weeks) decreased the estradiol-17beta (E2)-stimulated expression levels of c-jun (P<0.001), tumor necrosis factor (TNF)-alpha (P<0.005), estrogen receptors (ER)-alpha (P<0.001) and ER-beta (P<0.005), as determined by reverse transcription-polymerase chain reaction and a Southern blot analysis in the uteri of the ovarectomized mice. In the long-term experiment, the mice were given N-methyl-N-nitrosourea (MNU) solution (1 mg/100 g body weight) and normal saline (as controls) into their left and right uterine corpora, respectively, and then were divided into four groups. Group 1 (25 mice) was given a diet with Hochu-ekki-to and 5 ppm E2. Group 2 (25 mice) was given a diet with E2 alone. Group 3 (25 mice) was given a diet with Hochu-ekki-to alone. Group 4 (25 mice) was kept on the basal diet alone and treated as a control. The incidence of uterine endometrial cancer in the group with Hochu-ekki-to treatment was substantially lower than of the control group. The inhibitory effect of Hochu-ekki-to on endometrial carcinogenesis is thus suggested to decrease the expressions of c-jun, TNF-alpha, ER-alpha and -beta.

Electron microscopic investigation on the osteogenesis at titanium implant/bone marrow interface under masticatory loading

Electron microscopic investigation on osteogenetic process at the implant surface of threadless rod-type titanium implants with different surface roughness of Ra 0.4 +/- 0.01 microm, Sm 2.6 +/- 0.3 microm and Ra 2.0 +/- 0.12 microm, Sm 36 +/- 9.1 microm was performed at the early stage of 21 and 42 days post implantation into the jawbones of four beagles under the load bearing condition of functional mastication. The implant surfaces were covered with a blood clot and haematopoietic stem cells (HSC) including phagocytic monocytes immediately after the implantation. Successively, osteogenic stem cells (OSC) migrated from cortical and/or trabecular endosteum to the HSC-layer on the implant surface. The new bone formation at the implant/bone marrow interface was developed by collaboration of osteomediator cells (OMC) differentiated from monocytes of HSC and osteoblast phenotype cells of OSC derived from endosteum of cortical bone and/or trabecular. The new bone layer at the implant surface consisted of two layers, solution-mediated calcification layer of pseudo bone and cell (osteoblast) -mediated calcification layer of true bone. The pseudo bone was produced by solution-mediated calcification of OMC- and HSC-remnants near by the implant surface. The bone healing process at the implant/bone marrow interface depended upon two factors; the migration of OSC from cortical and/or trabecular endosteum to the implant surface and the healing potentiality. Topographic dependency upon the bone healing potential at implant/bone marrow interface was not confirmed in this experiment under the load bearing condition of functional mastication.

Anti-tumor effects of herbal medicines on endometrial carcinomas via estrogen receptor-alpha-related mechanism

This study was performed to examine the relationship between the anti-tumor effects of herbal medicine and endometrial carcinoma with ER-related mechanisms. An endometrial cancer cell line (Ishikawa) was used for this study. The cell viability and expression of estrogen receptors (ER) were determined by MTT and RT-PCR. A dose-dependent decrease of viability and apoptosis of the cancer cells was generated by exposure to the herbal medicines, Juzen-taiho-to or Shimotsu-to. The expression of ER-alpha mRNA, but not ER-beta mRNA was suppressed by Juzen-taiho-to or Shimotsu-to in an endometrial cancer cell line. The anti-tumor effect of these herbal medicines against endometrial carcinoma might be correlated to the ER-alpha related mechanism.