Y. Niwa

Publication List Details

Period

2006 - 2008

Number

31

Co-Authors

TransCom model simulations of hourly atmospheric CO2: Analysis of synoptic-scale variations for the period 2002-2003 (2008)

Patra, P.K., Law, R. M., Peters, W., Rödenbeck, C., Takigawa, M., Aulagnier, C., ...

The ability to reliably estimate CO2 fluxes from current in situ atmospheric CO2 measurements and future satellite CO2 measurements is dependent on transport model performance at synoptic and shorter...

DECIGO pathfinder (2008)

Ando, M., Kawamura, Seiji, Nakamura, T., Tsubono, K., Tanaka, T., Funaki, I., ...

DECIGO pathfinder (DPF) is a milestone satellite mission for DECIGO (DECi-hertz Interferometer Gravitational wave Observatory) which is a future space gravitational wave antenna. DECIGO is expected...

The Japanese space gravitational wave antenna: DECIGO (2008)

Kawamura, Seiji, Ando, M., Nakamura, T., Tsubono, K., Tanaka, T., Funaki, I., ...

DECi-hertz Interferometer Gravitational wave Observatory (DECIGO) is the future Japanese space gravitational wave antenna. DECIGO is expected to open a new window of observation for gravitational...

The Japanese space gravitational wave antenna - DECIGO (2008)

Kawamura, Seiji, Ando, M., Nakamura, T., Tsubono, K., Tanaka, T., Funaki, I., ...

DECi-hertz Interferometer Gravitational wave Observatory (DECIGO) is the future Japanese space gravitational wave antenna. The goal of DECIGO is to detect gravitational waves from various kinds of...

The Japanese space gravitational wave antenna - DECIGO (2006)

Kawamura, Seiji, Nakamura, T., Ando, M., Seto, N., Tsubono, K., Numata, K., ...

DECi-hertz Interferometer Gravitational wave Observatory (DECIGO) is the future Japanese space gravitational wave antenna. It aims at detecting various kinds of gravitational waves between 1 mHz and...

Location of the cis-acting auxin-responsive region in the promoter of the par gene from tobacco mesophyll protoplasts.

Takahashi, Y, Niwa, Y, Machida, Y, Nagata, T

We have isolated a genomic clone of an auxin-regulated par gene, which is expressed during the transition from G0 phase to S phase in the early stage of tobacco mesophyll protoplasts cultured in...

Functional analysis of two maize cDNAs encoding T7-like RNA polymerases.

Chang, C C, Sheen, J, Bligny, M, Niwa, Y, Lerbs-Mache, S, Stern, D B

We have characterized two maize cDNAs, rpoTm and rpoTp, that encode putative T7-like RNA polymerases. In vivo cellular localization experiments using transient expression of the green fluorescent...

A recessive Arabidopsis mutant that grows photoautotrophically under salt stress shows enhanced active oxygen detoxification.

Tsugane, K, Kobayashi, K, Niwa, Y, Ohba, Y, Wada, K, Kobayashi, H

Mutagenized Arabidopsis seedlings (ecotype Columbia) were screened for the ability to grow photoautotrophically on solid medium containing 200 mM NaCl. A novel mutant line, designated pst1 (for...

Evidence for transcriptional regulation of plastid photosynthesis genes in Arabidopsis thaliana roots.

Isono, K, Niwa, Y, Satoh, K, Kobayashi, H

Mechanisms underlying suppressed levels of transcripts for plastid photosynthesis genes in nongreen tissues such as roots and calli were analyzed in Arabidopsis thaliana, a plant suitable for further...

Oxygen metabolism in phagocytes of leprotic patients: enhanced endogenous superoxide dismutase activity and hydroxyl radical generation by clofazimine.

Niwa, Y, Sakane, T, Miyachi, Y, Ozaki, M

We examined the generation of active oxygens (O2-, H2O2, and OH X ) and the superoxide dismutase (SOD) activity of polymorphonuclear leukocytes (PMNs) and monocytes from 14 leprotic patients...

Decreased oxygen radical generation by neutrophils from patients with measles presumably owing to activation of suppressor T lymphocytes.

Niwa, Y, Sakane, T, Somiya, K, Miyachi, Y

The capacity for the generation of oxygen radicals by polymorphonuclear leukocytes (PMNs) was assessed in 29 patients with measles and in control groups. Patients with secondary bacterial infections...

Right-hand border regions of octopine T-DNA are recognized by RNA polymerase of Agrobacterium as well as by VirD1 and VirD2 proteins.

Niwa, Y, Yamamoto, A, Machida, C, Takebe, I, Machida, Y

The T-DNA of octopine Ti plasmid of Agrobacterium tumefaciens contains TL- and TR-DNA regions each bounded by 25 base-pair-repeats (designated A, B, C and D from left to right). Short DNA segments...

Location of the cis-acting auxin-responsive region in the promoter of the par gene from tobacco mesophyll protoplasts.

Takahashi, Y, Niwa, Y, Machida, Y, Nagata, T

We have isolated a genomic clone of an auxin-regulated par gene, which is expressed during the transition from G0 phase to S phase in the early stage of tobacco mesophyll protoplasts cultured in...

Functional analysis of two maize cDNAs encoding T7-like RNA polymerases.

Chang, C C, Sheen, J, Bligny, M, Niwa, Y, Lerbs-Mache, S, Stern, D B

We have characterized two maize cDNAs, rpoTm and rpoTp, that encode putative T7-like RNA polymerases. In vivo cellular localization experiments using transient expression of the green fluorescent...

A recessive Arabidopsis mutant that grows photoautotrophically under salt stress shows enhanced active oxygen detoxification.

Tsugane, K, Kobayashi, K, Niwa, Y, Ohba, Y, Wada, K, Kobayashi, H

Mutagenized Arabidopsis seedlings (ecotype Columbia) were screened for the ability to grow photoautotrophically on solid medium containing 200 mM NaCl. A novel mutant line, designated pst1 (for...

Evidence for transcriptional regulation of plastid photosynthesis genes in Arabidopsis thaliana roots.

Isono, K, Niwa, Y, Satoh, K, Kobayashi, H

Mechanisms underlying suppressed levels of transcripts for plastid photosynthesis genes in nongreen tissues such as roots and calli were analyzed in Arabidopsis thaliana, a plant suitable for further...

Oxygen metabolism in phagocytes of leprotic patients: enhanced endogenous superoxide dismutase activity and hydroxyl radical generation by clofazimine.

Niwa, Y, Sakane, T, Miyachi, Y, Ozaki, M

We examined the generation of active oxygens (O2-, H2O2, and OH X ) and the superoxide dismutase (SOD) activity of polymorphonuclear leukocytes (PMNs) and monocytes from 14 leprotic patients...

Decreased oxygen radical generation by neutrophils from patients with measles presumably owing to activation of suppressor T lymphocytes.

Niwa, Y, Sakane, T, Somiya, K, Miyachi, Y

The capacity for the generation of oxygen radicals by polymorphonuclear leukocytes (PMNs) was assessed in 29 patients with measles and in control groups. Patients with secondary bacterial infections...

Right-hand border regions of octopine T-DNA are recognized by RNA polymerase of Agrobacterium as well as by VirD1 and VirD2 proteins.

Niwa, Y, Yamamoto, A, Machida, C, Takebe, I, Machida, Y

The T-DNA of octopine Ti plasmid of Agrobacterium tumefaciens contains TL- and TR-DNA regions each bounded by 25 base-pair-repeats (designated A, B, C and D from left to right). Short DNA segments...

Antioxidant action of antimalarials.

Miyachi, Y, Yoshioka, A, Imamura, S, Niwa, Y

The effects of antimalarials, chloroquine and quinacrine, on the generation of reactive oxygen species were examined both in polymorphonuclear leucocytes and in the xanthine-xanthine oxidase system....

Effect of sulphasalazine and its metabolites on the generation of reactive oxygen species.

Miyachi, Y, Yoshioka, A, Imamura, S, Niwa, Y

The relative in vitro anti-oxidant efficacy of sulphasalazine (salicylazosulphapyridine, SASP) and its metabolites (5-aminosalicylic acid, 5-ASA; sulphapyridine, SP) was examined by studying their...

Regulation of tumour necrosis factor (TNF) induced apoptosis by soluble TNF receptors in Helicobacter pylori infection

Shibata, J, Goto, H, Arisawa, T, Niwa, Y, Hayakawa, T, Nakayama, A, ...

BACKGROUND—Tumour necrosis factor (TNF) is a predominant cytokine produced in the gastric mucosa of patients with Helicobacter pylori infection. TNF induces apoptosis in a variety of cells. The...

The utility of endoscopic ultrasonography and endoscopy in the endoscopic mucosal resection of early gastric cancer

Ohashi, S, Segawa, K, Okamura, S, Mitake, M, Urano, H, Shimodaira, M, ...

OBJECTIVE—To clarify the usefulness of endoscopic ultrasonography (EUS) and endoscopy in the endoscopic mucosal resection (EMR) of early gastric cancer. Patients/Methods—EMR was performed in...

Evaluation of prognosis of squamous cell carcinoma of the oesophagus by endoscopic ultrasonography

Shinkai, M, Niwa, Y, Arisawa, T, Ohmiya, N, Goto, H, Hayakawa, T

BACKGROUND/AIMS—For pretherapeutic staging of squamous cell carcinoma of the oesophagus, endoscopic ultrasonography (EUS) is considered the most profitable modality because it can provide cross...

Age-dependent basal level and induction capacity of copper-zinc and manganese superoxide dismutase and other scavenging enzyme activities in leukocytes from young and elderly adults.

Niwa, Y., Iizawa, O., Ishimoto, K., Akamatsu, H., Kanoh, T.

Several enzymes, including superoxide dismutase (SOD), catalase, glutathione peroxidase, and D-glucose-6-phosphate dehydrogenase are capable of scavenging reactive oxygen species in in vivo. We...

Phospholipid base exchange activity in the leukocyte membranes of patients with inflammatory disorders.

Niwa, Y., Sakane, T., Ozaki, Y., Kanoh, T., Taniguchi, S.

Phospholipid base exchange and cholinephosphotransferase (CPT) and ethanolaminephosphotransferase (EPT) activities were assessed in the membranes of neutrophils or lymphocytes from patients with...

Neutrophil-potentiating factors released from stimulated lymphocytes; special reference to the increase in neutrophil-potentiating factors from streptococcus-stimulated lymphocytes of patients with Behçet's disease.

Niwa, Y, Mizushima, Y

The potentiating effect of the soluble factors released from normal or diseased lymphocytes on neutrophil functions were investigated in the presence or absence of mitogens and wall preparations of...

Auto-oxidative damage in Behçet's disease--endothelial cell damage following the elevated oxygen radicals generated by stimulated neutrophils.

Niwa, Y, Miyake, S, Sakane, T, Shingu, M, Yokoyama, M

The functions of phagocytes are enhanced in patients with Behçet's disease, therefore, we investigated the neutrophil-derived oxygen intermediates (OI) and lysosomal enzymes from 17 patients...

Immunological behaviour following rubella infection.

Niwa, Y, Kanoh, T

Several immunological tests were performed on eighty-five patients with rubella. There was a decrease in total leucocytes, neutrophils and T cells, an increase in IgG and the complement components of...

OKT4+ and OKT8+ T lymphocytes produce soluble factors that can modulate growth and differentiation of human B cells.

Sakane, T, Ueda, Y, Suzuki, N, Niwa, Y, Hoshino, T, Tsunematsu, T

The human T cell subset(s) responsible for the production of soluble factors that can modulate B cell growth and B cell differentiation was investigated in the present study. For this purpose, highly...

Effect of oxygen tension on human peripheral blood leukocytes: lysosomal enzyme release and metabolic responses during phagocytosis

Skosey, JL, Chow, DC, Nusinow, S, May, J, Gestautas, V, Niwa, Y

We found that nonlethal lysosomal enzyme release from human peripheral blood leukocytes during phagocytosis of opsonized zymosan in vitro was modified by the oxygen tension under which the cells were...