3.Coordination of Multiple Cellular Processes by NR5A1/Nr5a1
Ken-ichirou MOROHASHI ; Miki INOUE ; Takashi BABA
Endocrinology and Metabolism 2020;35(4):756-764
The agenesis of the gonads and adrenal gland in revealed by knockout mouse studies strongly suggested a crucial role for Nr5a1 (SF-1 or Ad4BP) in organ development. In relation to these striking phenotypes, NR5A1/Nr5a1 has the potential to reprogram cells to steroidogenic cells, endow pluripotency, and regulate cell proliferation. However, due to limited knowledge regarding NR5A1 target genes, the mechanism by which NR5A1/Nr5a1 regulates these fundamental processes has remained unknown. Recently, newlyestablished technologies have enabled the identification of NR5A1 target genes related to multiple metabolic processes, as well as the aforementioned biological processes. Considering that active cellular processes are expected to be accompanied by active metabolism, NR5A1 may act as a key factor for processes such as cell differentiation, proliferation, and survival by coordinating these processes with cellular metabolism. A complete and definite picture of the cellular processes coordinated by NR5A1/Nr5a1 could be depicted by accumulating evidence of the potential target genes through whole genome studies.
4.A Case of Breast Cancer Brain Metastasis with a 16-Year Time Interval without Evidence of Cancer Recurrence.
Shoko Merrit YAMADA ; Yusuke TOMITA ; Soichiro SHIBUI ; Takashi KUROKAWA ; Yasuhisa BABA
Journal of Breast Cancer 2017;20(2):212-216
The median time of brain metastasis from the diagnosis of breast cancer is approximately 3 years. In this case report, a 69-year-old woman demonstrated cerebellar ataxia. Brain magnetic resonance imaging revealed enhanced lesions in bilateral cerebellar hemispheres. She had undergone surgery, radiation, and chemotherapy for uterine and breast cancer 24 years prior and 16 years prior, respectively. Although she had not received any anticancer treatment for 10 years, no recurrences were identified using whole body scans. A partial tumor resection was performed and the histological diagnosis was an adenocarcinoma from breast cancer. As no extracranial lesions were found, gamma-knife irradiation was performed, without additional systemic chemotherapy. One month posttreatment, the tumors dramatically reduced in size and the patient completely recovered from cerebellar ataxia. Systemic chemotherapy is not always required for brain metastasis from breast cancer with a long interval period, as long as no evidence of extracranial recurrence is detected.
Adenocarcinoma
;
Aged
;
Brain*
;
Breast Neoplasms*
;
Breast*
;
Cerebellar Ataxia
;
Diagnosis
;
Drug Therapy
;
Female
;
Humans
;
Magnetic Resonance Imaging
;
Neoplasm Metastasis*
;
Neoplasm Recurrence, Local
;
Prognosis
;
Recurrence*
;
Whole Body Imaging
5.Genomic Basis for Methicillin Resistance in Staphylococcus aureus.
Keiichi HIRAMATSU ; Teruyo ITO ; Sae TSUBAKISHITA ; Takashi SASAKI ; Fumihiko TAKEUCHI ; Yuh MORIMOTO ; Yuki KATAYAMA ; Miki MATSUO ; Kyoko KUWAHARA-ARAI ; Tomomi HISHINUMA ; Tadashi BABA
Infection and Chemotherapy 2013;45(2):117-136
Since the discovery of the first strain in 1961 in England, MRSA, the most notorious multidrug-resistant hospital pathogen, has spread all over the world. MRSA repeatedly turned down the challenges by number of chemotherapeutics, the fruits of modern organic chemistry. Now, we are in short of effective therapeutic agents against MRSA prevailing among immuno-compromised patients in the hospital. On top of this, we recently became aware of the rise of diverse clones of MRSA, some of which have increased pathogenic potential compared to the classical hospital-associated MRSA, and the others from veterinary sources. They increased rapidly in the community, and started menacing otherwise healthy individuals by causing unexpected acute infection. This review is intended to provide a whole picture of MRSA based on its genetic makeup as a versatile pathogen and our tenacious colonizer.
Adenosine
;
Chemistry, Organic
;
Chromatography, Micellar Electrokinetic Capillary
;
Clone Cells
;
Colon
;
England
;
Fruit
;
Humans
;
Methicillin
;
Methicillin Resistance
;
Methicillin-Resistant Staphylococcus aureus
;
Sprains and Strains
;
Staphylococcus
;
Staphylococcus aureus
6.A study of the significance of death conferences in the palliative care unit : through the experience of coping with the death of a liver cancer patient who died of necrotizing fasciitis resulted from bedsore
Koji Amano ; Mika Baba ; Takashi Sugiura ; Muneyoshi Kawasaki ; Shinichiro Nakajima ; Hiroshi Wakayama ; Akiko Watakabe ; Hiromi Kunimoto ; Miwako Uemori
Palliative Care Research 2012;7(2):568-574
When patients hospitalized in a palliative care unit die, particularly when their deaths were not peaceful ones, we, as health professionals, feel distressed, senses of helplessness and defeat, and even regret. However, busy daily clinical practice usually does not allow us to express these feelings. After going through such an experience repeatedly, your self-efficacy may be reduced and you could feel burned out. In this study, through the experience of coping with the death of a liver cancer patient who died of necrotizing fasciitis resulted from bedsore, a death conference was organized for us, health professionals who had been directly concerned with the patient, to discuss questions, conflicts, and dilemmas that arose when we provided care and express feelings that had been repressed. And other participants in the conference, who had not been directly concerned with the patient, gave their affirmative views. The conferences served to: (1) promote mutual understanding, trustful relationships, and teamwork among us, (2) increase our awareness of palliative care, and (3) allow us to cope with stress and prevent us from feeling burned out. These effects are considered to help implement improved health care. In the former part of the conference remarks were divided into three categories, (1) regret, (2) questions, conflicts, and dilemmas, and (3) senses of helplessness and defeat, and in the latter part affirmative views were mainly stated.
7.Pleuro-peritoneal Shunting for Refractory Pericardial Effusion after Coronary Artery Bypass Grafting
Takashi Matsumoto ; Masayoshi Umesue ; Hironori Baba ; Kanzi Matsui
Japanese Journal of Cardiovascular Surgery 2010;39(6):343-346
A-75-year-old man had refractory late cardiac tamponade after an off-pump coronary artery bypass grafting. He was initially treated by pericardiocentesis with oral nonsteroidal anti-inflammatory drugs, but the treatment failed. Pericardial fenestration was conducted twice for refractory pericardial effusion during his hospitalization. He presented again with recurrence of cardiac tamponade 2 months after the last pericardial fenestration. Therefore, a pleuroperitoneal shunt system was implanted. He recovered well and was discharged without reaccumulation of pericardial effusion.
8.Early Pulmonary Complications after Videofluoroscopic Examination of Swallowing
Takashi TANAKA ; Hitoshi KAGAYA ; Michio YOKOYAMA ; Eiichi SAITOH ; Mikoto BABA
The Japanese Journal of Rehabilitation Medicine 2010;47(5):320-323
Videofluoroscopic examination of swallowing (VF) is widely used for evaluating swallowing function. However, pulmonary complications after VF are seldom evaluated. We checked residual barium sulfate on chest X-rays and early pulmonary complication after VF. One hundred and ninety-eight patients underwent VF and chest X-rays. Eighty-six patients who did not aspirate during VF had no residual barium on their chest X-rays. One hundred and twelve patients aspirated during VF, but only 40 of these patients showed residual barium on their chest X-rays. Ten patients had fever after VF, but no significant relationship was observed between fever and residual barium on chest X-rays or aspiration. Aspiration was not correlated with mobility or cognitive status. One case had pneumonia after VF, but VF did not seem to be the cause of the pneumonia. In conclusion, no severe early pulmonary complications after VF were observed. It is difficult to predict early pulmonary complications from chest X-rays.
9.The Role of Expression of Vascular Endothelial Growth Factor (VEGF)-A and VEGF-C in Early Gastric Cancer.
Jeong Hwan YOOK ; Shoji NATSUGOE ; Xiangming CHE ; Sumiya ISHIGAMI ; Shuichi HOKITA ; Masamichi BABA ; Sonshin TAKAO ; Aikou TAKASHI
Journal of the Korean Cancer Association 2001;33(2):93-98
PURPOSE: Tumor spread is mainly dependent on both hematogenous and lymphogeneous systems, and recently, several angiogenic factors have been identified. In the present study, we investigated whether the expressions of VEGF-A and -C are related with angiogenesis and lymph node metastasis in early gastric cancer. MATERIALS AND METHODS: A total of 97 specimens btained from patients with early gastric cancer were studied by immunohistochemical methods using anti- VEGF-A and -C polyclonal antibodies, anti-Factor VIII- related antigen antibody, and anti-p53 antibody. RESULTS: The percentage of the positive expressions of VEGF-A and -C were 24.7% (24/97) and 25.7% (25/97), respectively. Significant differences were found between the expression of VEGF-A and lymphatic invasion and lymph node metastasis, and between expression of VEGF-C and gross type, lymphatic invasion, and lymph node metastasis (p<0.05). The mean microvessel counts in VEGF-A and -C positive tumors were significantly higher than those in VEGF-A and -C negative tumors (p<0.05). In multivariate analysis, tumor size, lymphatic invasion and VEGF-C were identified as independent factors related to lymph node metastasis (p<0.05). CONCLUSION: The expressions of VEGF-A and -C were found to be related to angiogenic activity and VEGF-C expression correlated significantly with lymph node metastasis. The determination of VEGF-C expression may be helpful for predicting lymph node metastases in early gastric cancer, and further studies involving many specimens are warranted.
Angiogenesis Inducing Agents
;
Antibodies
;
Humans
;
Lymph Nodes
;
Microvessels
;
Multivariate Analysis
;
Neoplasm Metastasis
;
Stomach Neoplasms*
;
Vascular Endothelial Growth Factor A*
;
Vascular Endothelial Growth Factor C*
10.Tumor angiogenesis related to growth pattern and lymph node metastasis in early gastric cancer
Xiangming CHE ; Hokita SHUICHI ; Natsugoe SHOJI ; Tanabe GEN ; Baba MASAMICHI ; Takao SONSHIN ; Aikou TAKASHI
Chinese Medical Journal 1998;(12):1090-1093
Objective To investigate the correlation between angiogenesis and tumor growth pattern as well as the lymph node metastasis to reveal the significance of vascularity in the early stage of gastric cancer.Methods 97 specimens from patients with early gastric cancer were studied by immunohistochemical method using anti-factor Ⅷ related antigen antibody.Results Microvessel count was related to tumor growth pattern. The mean vessel count was higher in superficially spreading and penetrating types of tumors. Lymph node metastasis was correlated to microvessel count. Tumors with lymph node metastasis had higher microvessel counts than those without lymph node metastasis.Conclusions In the early stage of gastric carcinoma, angiogenesis is correlated with tumor growth pattern and lymph node metastasis. Identification of tumors with high density of vascularization is beneficial for closer follow-up and adjuvant therapy.


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