• Title/Summary/Keyword: Nervous system

Search Result 2,716, Processing Time 0.035 seconds

CRM1 inhibitor S109 suppresses cell proliferation and induces cell cycle arrest in renal cancer cells

  • Liu, Xuejiao;Chong, Yulong;Liu, Huize;Han, Yan;Niu, Mingshan
    • The Korean Journal of Physiology and Pharmacology
    • /
    • v.20 no.2
    • /
    • pp.161-168
    • /
    • 2016
  • Abnormal localization of tumor suppressor proteins is a common feature of renal cancer. Nuclear export of these tumor suppressor proteins is mediated by chromosome region maintenance-1 (CRM1). Here, we investigated the antitumor effects of a novel reversible inhibitor of CRM1 on renal cancer cells. We found that S109 inhibits the CRM1-mediated nuclear export of RanBP1 and reduces protein levels of CRM1. Furthermore, the inhibitory effects of S109 on CRM1 is reversible. Our data demonstrated that S109 significantly inhibits proliferation and colony formation of renal cancer cells. Cell cycle assay showed that S109 induced G1-phase arrest, followed by the reduction of Cyclin D1 and increased expression of p53 and p21. We also found that S109 induces nuclear accumulation of tumor suppressor proteins, Foxo1 and p27. Most importantly, mutation of CRM1 at Cys528 position abolished the effects of S109. Taken together, our results indicate that CRM1 is a therapeutic target in renal cancer and the novel reversible CRM1 inhibitor S109 can act as a promising candidate for renal cancer therapy.

A Study on the Difference of Heart Rate Variability in Women According to the Onset of Overactive Bladder (과민성 방광의 발병 시기에 따른 심박변이도 특성 비교에 관한 연구)

  • Ahn, In-Suk;Kim, Dong-Il
    • The Journal of Korean Obstetrics and Gynecology
    • /
    • v.24 no.3
    • /
    • pp.116-126
    • /
    • 2011
  • Objectives: To identify the difference of autonomic nervous system activity in women with overactive bladder between women with pre-menopausal onset and post-menopausal onset. Methods: Total of 46 women with overactive bladder participated in this study. Patients were categorized in two groups, patients with pre-menopausal onset(n=31) and post-menopausal onset(n=15). We measured and compared parameters of Heart Rate Variability of patients. The results were analysed using SPSS for windows 12.0. Results: On frequency domain analysis, the patients with post-menopausal onset had significantly decreased mean value of Total Power, High Frequence, Low Frequence, compared with the patients with post-menopausal onset. Conclusion: Decreased Total Power of patients with post-menopausal onset indicated that they may have had decreased activity of autonomic nervous system. Also, the patients with pre-menopausal onset had relatively increased sympathetic activity than the patients with post-menopausal onset.

Relationship between Heart Rate Variability and Cold-Heat Patternization in Patient with Chronic Constipation (만성변비환자의 한열변증에 따른 심박변이도에 관한 연구)

  • Park, Jong-Joo;Lee, Myung-Su;Kong, Kyung-Hwan;Go, Ho-Yeon
    • The Journal of Internal Korean Medicine
    • /
    • v.33 no.2
    • /
    • pp.209-221
    • /
    • 2012
  • Objectives : The aim of this study was to investigate the relationship between the autonomic nervous system and the cold-heat pattern in patients with chronic constipation. Methods : Subjects with chronic constipation (n=30) and without chronic constipation (n=20) were recruited, interviewed and measured for heart rate variability (HRV). Chronic constipation was defined as functional constipation and Irritable Bowel Syndrome (IBS) with constipation based on Rome III criteria. We surveyed patients' general characteristics, categorized by cold-heat pattern, and took measurement of HRV for 5 minutes. Analysis was conducted among these three indices. Results : Women accounted for most of the subjects with chronic constipation (96.7%). In groups with or without constipation, the number of cold patterns was more than of heat patterns. The mean heart rate of subjects without chronic constipation was significantly higher than that of subjects with chronic constipation. No other statistical significance was noted among indices of HRV and cold-heat pattern. Conclusions : Through this study, there were few relationships between autonomic nervous system measured by HRV and cold-heat pattern in chronic constipation.

Central nervous system depressant activity of Leucas aspera root

  • Rahman Shafiur;Sarder Mokaddez;Ali Yusuf;Rashid Abdur
    • Advances in Traditional Medicine
    • /
    • v.6 no.3
    • /
    • pp.174-178
    • /
    • 2006
  • The ethanolic extract of Leucas aspera root was studied for its effect on the central nervous system (CNS) using pentobarbitone induced sleeping time test, the open field test and the hole cross test in Swiss albino mice. The present investigation revealed that the extract at the doses of 250 and 500 mg/kg, significantly prolonged the pentobarbitone induced sleeping time in mice though the onset of sleep was delayed as compared to control. In open field test the depressing effect was prominent from the second observation period (30 min) and persisted throughout the entire experimental period (240 min). In the hole cross test, the depressing effect was observed significant from the third observation period (60 min) and persisted up to the seventh observation period (240 min) except at fourth observation (90 min) for 250 mg dose group and depressing effect was significant from second observation (30 min) up to seventh observation period (240 min) for 500 mg dose group. These results support the finding that Leucas aspera root may contain biologically active constituent(s) having CNS activity.

The Correlation between Atopic Dermatitis Severity and Heart Rate Variability (아토피피부염의 중증도와 심박변이도의 상관성 연구)

  • Yu, Seung-Min;Yoo, Seung-Yeon;Kim, Min-Hee;Yun, Young-Hee;Choi, In-Hwa
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
    • /
    • v.24 no.3
    • /
    • pp.65-73
    • /
    • 2011
  • Background : There are findings indicating that the autonomic nervous system (ANS) is affected negatively in atopic dermatitis (AD). Heart rate variability (HRV) is a tool to examine ANS. But, studies investigation the relationship between AD and HRV is rare. Objective : The aim of this study was to investigate the correlation between atopic dermatitis severity and HRV and to find out the role of ANS in AD. Methods : Retrospective chart review was performed. The Severity Scoring Atopic Dermatitis (SCORAD) index and HRV parameter was investigated and analyzed. Results : There were 55 patients (25males and 30 females) who met the criteria. Objective SCORAD had significant positive correlation with HRT and Subjective SCORAD had significant negative correlation with SDNN, TP and VLF. Intensity item of SCORAD index had negative correlation with most HRV parameters, but TP, LF and LF/HF ratio had significant positive correlation with dryness. Conclusion : This study supports the concept that atopic dermatitis is a stress-responsive disorder and involves autonomic nervous system dysfunction.

Microstructural Organization of the Central Nervous System in the Orb-Web Spider Araneus ventricosus (Araneae: Araneidae)

  • Park, Yong-Ki;Moon, Myung-Jin
    • Applied Microscopy
    • /
    • v.43 no.2
    • /
    • pp.65-74
    • /
    • 2013
  • Although the geometrical difference in body position between web-building and wandering spiders could affect the organization of their central nervous system (CNS), however most of our informations about spider's CNS are dependent on those revealed from the wandering spiders. Therefore, this paper describes microstructural organizations of the CNS in the geometric orb-web spider Araneus ventricosus. Similarly to other wandering spiders, the CNS of A. ventricosus is also consisted of a dorsal supraesophageal ganglion and a ventral subesophageal mass. The supraesophageal ganglia are fused together and made up of a large sized nerve cell clusters, whereas the subesophageal ganglia are made up of the foremost part of the ventral nerve cord. It has been revealed that the only nerve arising from the supraesophageal mass was the optic nerve which connected with four pairs of eyes, whereas a pair of pedipalpal and four pairs of appendage nerves including abdominal nerve pairs were arisen from the subesophageal nerve mass. Fibrous masses are highly organized into longitudinal and transverse tracts, and are only consisted of processes of neurons and the terminal ramnifications of peripheral sensory neurons. In addition, central fibrous mass of both the brain and the subesophageal mass are totally devoid of nerve cell bodies.

Primary Central Nervous System Lymphoma: A Clinicopathological and Cytomorpholgical Study from A Tertiary Care Centre in Chennai, India

  • Ambroise, M. Moses;Ghosh, Mitra;Mallikarjuna, V.S.;Annapurneswari, S.;Kurian, Ann;Chakravarthy, Ranjani
    • Asian Pacific Journal of Cancer Prevention
    • /
    • v.14 no.2
    • /
    • pp.727-731
    • /
    • 2013
  • Background: The aim of this study was to analyze the clinicopathological and immunohistochemical features of primary central nervous system lymphoma (PCNSL) cases occurring in Indian patients and also study the utility of the crush smear preparation in intraoperative diagnosis. Materials and Methods: The immune status, clinical, radiological details, immunohistochemical profile, histopathological findings and cytological features in smear preparation of 32 cases of PCNSL were analyzed. Patients with systemic NHL and skull-base lymphomas were excluded. Results: The mean age of our patients was 52 years with a male: female ratio 1:1. A periventricular location was found in 62.5% of patients. None of our PCNSL cases were associated with AIDS. All cases except one were diffuse large B-cell lymphomas. Intraoperative diagnosis using crush smears allowed correct prediction in 93% of cases. Conclusions: Our study shows that PCNSL is seen predominantly in immunocompetent patients in India. The age of presentation is relatively young as compared to the West. Our study also stresses the utility of crush smear preparation in establishing an intraoperative diagnosis.

The Effects of Carthami Semen Pharmacopuncture and Bovis Calculus.Fei Ursi Pharmacopuncture on the Heart Rate Variability(HRV) (홍화자약침과 웅담.우황약침이 심박변이도(HRV)에 미치는 영향)

  • Lee, Jin-Bok;Song, Beom-Yong;Yook, Tae-Han
    • Journal of Acupuncture Research
    • /
    • v.27 no.2
    • /
    • pp.11-21
    • /
    • 2010
  • Objectives : We tried to investigate the effects of Carthami Semen(CF) pharmacopuncture and Bovis Calculus Fei Ursi(BU) pharmacopuncture on the heart rate variability(HRV) in adult men. As well as we tried to observe how CF pharmacopuncture and BU pharmacopuncture effect on the balance of the autonomic nervous system. Methods : We investigated on 40 healthy volunteers consisted of 20 subjects in CF pharmacopuncture group and 20 subjects in BU pharmacopuncture group respectively. We ruled out subjects whose vital sign isn't in normal range, yet they had taken a rest. The study established by a randomized, single-blind clinical trial. CF pharmacopuncture and BU pharmacopuncture was applied on each group. We measured HRV 7 times : baseline measurement and every 5 minutes for 30 minutes after injection. The SPSS 15.0 for Windows was used to analyze the data by the paired t-test(in group) and Independent sample t-test(between the groups). Results 1. After injection of CF pharmacopuncture, SDNN, Ln(TP), Ln(VLF) and Ln(LF) increased significantly, and Complexity, pNN50 decreased significantly. 2. After injection of BU pharmacopuncture, RMSSD, SDSD and HRV-index increased significantly. Conclusions : We suggest that CF pharmacopuncture activate sympathetic nervous system and BU pharmacopuncture tend to activate the autonomic nervous system.

Central nervous system stimulating activity of the ethanolic extract of Fleurya interrupta Guad. (Urticaceae)

  • Shilpi, Jamil Ahmad;Rouf, Razina;Ferdous, MM;Uddin, Shaikh Jamal
    • Advances in Traditional Medicine
    • /
    • v.6 no.1
    • /
    • pp.21-26
    • /
    • 2006
  • The ethanolic extract of Fleurya interrupta Gaud, (Urticaceae) was tested for its possible neuropharmacological effects on experimental animals, For the primary neuropharmacological screening of this plant, the ethanolic extract of its aerial parts was subjected to preliminary evaluation for acute toxicity, antinociceptive activity and central nervous system (CNS) activities. At the doses of 125 and 250 mg/kg, the extract significantly (P < 0.01 and P < 0. 001) and dose-dependently increased the frequency of acetic acid induced writhing in mice. In the pentobarbitone induced sleeping time test, the extract at the above dose levels, significantly and dose-dependently decreased the pentobarbitone induced sleeping time (P < 0.001) and increased the time for onset of sleep (P < 0.001) in mice. In the open field and hole cross tests, test animals showed an increase in their movement in the both tests from the 2nd observation period (30 min) and persisted throughout the entire experimental period (240 min). These results of the extract may attribute a stimulating action on the CNS. On the basis of these findings, it can be assumed that the extract exerts its stimulating effect on the CNS in mice by interfering with the cortical function or increasing the effect of some CNS stimulating neurotransmitters.

SELECTIVE TOXICITY OF CHRONIC LEAD INGESTION TO CENTRAL CATECHOLAMINERGIC NERVOUS SYSTEM IN RATS

  • Ryu, Jong-Hoon;Cheong, Jae-Hoon;Chin, Kang;Ko, Kwang-Ho
    • Toxicological Research
    • /
    • v.6 no.2
    • /
    • pp.131-142
    • /
    • 1990
  • The selective toxicity of lead was tested in central catecholaminergic nervous system of postnatally lead exposed rats. Three groups of animals were prepared; 1) rats exposed to low dose of lead (0.05%PbAc); 2) rats exposed to high dose of lead(0.2%PbAc); 3) age-matched normal control rats. At2, 4, 6 and 8 weeks of age brain and body weight gain, and lead concentrations in brain tissues were measured. At the same ages tyrosine hydroxylase and Na-K ATPase activities were measured in the 4 brain areas of each animal. Body weight gain was decreased after 6 weeks of age in rats exposed to high dose of lead. Concentrations of lead in whole brain tissues were increased from 0.37 to 0.83 (ng/mg wet tissue) in these animals. in lead exposed rats, tyrosine hydroxylase activities were higher but Na-K ATPase activities were lower than those of age-matched control animals. Brain areas where tyrosine hydroxylase activities were detected without concomitant changes of Na-K ATPase activities were pons-medulla (2 weeks of age) and telencephalon (6 weeks of age) in rats exposed to low dose of lead, and those in rats exposed to high dose of lead were midbrain (4 and 6 weeks of age). These data indicate that catecholaminergic nervous system in the brain areas described above could selectively be affected by lead.

  • PDF