1.Mechanisms of estrogen action
Chinese Journal of Pathophysiology 2000;0(10):-
Estrogen has widespread biological actions. Besides sexual organs, estrogen plays an important role in cardiovascular system, central nervous sy s tem and bone tissue. However, the mechanisms of estrogen action are very complex and not fully understood. The actions of estrogen are not identical and even co mpletely different in some organs system. In this review, we will focus on the n ew development of molecular mechanisms of estrogen action.
2.Caecal Volvulus after a dental procedure – not just constipation!
Tan Jih Huei ; Ng Zi Qin ; Henry Chor Lip Tan
Malaysian Family Physician 2019;14(2):32-35
Caecal volvulus has been reported to be associated with various abdominal and pelvic pathologies.
Its signs and symptoms are usually non-specific and maybe overlooked in favour of benign causes,
such as constipation. A high degree of suspicion is required for prompt diagnosis. Herein, we
report on an unusual case of caecal volvulus after a dental procedure that was managed initially as
constipation.
3.Analysis of the automatic brightness controlling for x-ray imaging systems.
Yong-li HUANG ; Tan QU ; Kai-lun LU ; Zheng-zi PAN
Chinese Journal of Medical Instrumentation 2002;26(6):402-406
In this paper, the question about automatic brightness control for x-ray imaging systems based on CCD camera is discussed, and the structure and principle of an auto brightness control loop are analyzed along with the working procedure of the x-ray imaging system. A kind of digital brightness controller about a typical device and the designing idea of the computer brightness intelligent control software is introduced.
Algorithms
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Image Processing, Computer-Assisted
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Radiation Protection
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Radiographic Image Enhancement
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instrumentation
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Radiography
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instrumentation
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X-Ray Intensifying Screens
4.Potential risk factors of excessive epistaxis after endoscopic endonasal surgery.
Ruifang ZENG ; Wei LI ; Jingang AI ; Bo SUN ; Zi XU ; Ru GAO ; Guolin TAN
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2014;28(14):1047-1050
OBJECTIVE:
To investigate the potential risk factors and management of excessive epistaxis after endoscopic endonasal surgery (EES).
METHOD:
Six hundred and forty-one patients who underwent EES in our hospital from December 2011 to December 2012 were reviewed retrospectively. Factors which potentially affect the incidence of excessive epistaxis after EES were analyzed with univariate and multivariate logistic regression model.
RESULT:
The incidence rate of excessive epistaxis after EES was 8.4% in our study. Multivariate logistic regression analysis revealed that history of previous EES, along with other four factors, correlated significantly with the occurrence of excessive epistaxis after EES.
CONCLUSIONS
Previous EES, along with other three factors, may increase the chance of excessive epistaxis after EES, while pre-operative corticosteroid therapy may reduce the risk to some extent.
Adolescent
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Adult
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Aged
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Child
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Endoscopy
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adverse effects
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Epistaxis
;
etiology
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Female
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Humans
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Logistic Models
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Male
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Middle Aged
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Multivariate Analysis
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Nasal Surgical Procedures
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adverse effects
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Nose
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surgery
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Postoperative Complications
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etiology
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Retrospective Studies
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Risk Factors
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Young Adult
5.Effects of inhaled glucocorticoids on bone metabolism of children with asthma
sha, LI ; yi, ZHANG ; you-ping, TAN ; qiu-xiong, LIN ; zi-li, CHEN
Journal of Applied Clinical Pediatrics 1992;0(06):-
0.05).Conclusion There are no significant effects on bone metabolism and growth of children with small dose of IGs per day for a longer time.
6.Water as neutral oral contrast agent in abdominopelvic CT: comparing effectiveness with Gastrografin in the same patient
Chau Hung Lee ; Han Zi Gu ; Balamurugan A Vellayappan ; Cher Heng Tan
The Medical Journal of Malaysia 2016;71(6):322-327
Introduction: Positive oral contrast is no longer deemed
necessary for abdominopelvic computed tomography (CT)
scans. Studies have shown water to be an equally effective
oral contrast agent. However, to our knowledge no study has
compared effectiveness between gastrografin and water in
the same patient, which will provide a more objective
evaluation of the two oral contrast agents. We aim to make a
head-to-head comparison of water as neutral oral contrast
(OC) against gastrografin as positive OC for abdominopelvic
CT scans in the same patient.
Methods: A retrospective review of 206 abdominopelvic CT
scans of 103 patients was performed. The scans were
reviewed in consensus by two blinded radiologists. The
ability to visualise each abdominopelvic organ, contrastassociated
artefacts and small bowel wall delineation, was
qualitatively scored on a 5-point scale. Each patient had two
sets of scores, one with water and another with gastrografin
as OC. Paired scores from the two OCs were evaluated by
Wilcoxon signed rank test to determine any significant
difference in performance between the two OCs for
visualisation of abdominopelvic anatomy on CT.
Results: There was significantly better delineation of
duodenal wall (p<0.001) and overall visualisation of the
duodenum (p=0.011) using water as OC compared to
gastrografin. No statistically significant differences were
demonstrated between water and gastrografin for
visualisation of the rest of the abdominopelvic organs, walldelineation
of the rest small bowel and contrast-associated
artefacts.
Conclusions: Water can be used in place of gastrografin as
oral contrast in abdominopelvic CT without compromising
visualization of abdominopelvic organs.
7.Correlation between CT features and clinical severity stratification in acute pulmonary embolism
Xu-Hui ZHOU ; Jing LI ; Zi-Ping LI ; Guo-Sheng TAN ; Miao FAN ; Jing-Di CHEN ;
Chinese Journal of Radiology 2001;0(09):-
Objective To analyze the correlation factors between CT imaging features of pulmonary embolism(PE)and clinical severity stratification,to explore the value of CT pulmonary angiography (CTPA)in acute PE severity stratification.Methods According to the clinical severity,48 patients with acute PE proved by CTPA were classified into two groups,including 21 critical and 27 non-critical patients. Embolism index,ratio of central pulmonary involvement,ratio of right ventricle maximum minor axis (RVMMA)to left ventricle maximum minor axis(LVMMA),namely RV:LV,dilation of main pulmonary and/or right pulmonary trunk,and dilation of bronchial arteries in both groups were analyzed comparatively. The correlation factors between CT imaging features and PE clinical severity stratification were explored.The correlation between RV:LV and embolism index of 48 patients was analyzed.Results Pulmonary embolism index(22.0%—85.0%,median 38.0%),ratio of central pulmonary involvement(42.5%),RV:LV (0.90—1.90,median 1.30),dilation of pulmonary artery(14 cases),and dilation of bronchial artery (8 cases)in critical group(21 cases)were higher than those corresponding factors(5%—48%,median 21.5%,31.25%,0.80—1.40,median 1.00,5 eases,and 3 eases)in non-critical group(27 cases) (Z=4.27,X~2=5.40,Z=2.58,X~2=11.45,X~2=4.87,P
8.Analysis of the correlation between the pre-S1 antigen, pre-S2 antigen and DNA of hepatitis B virus in the serum of chronic hepatitis B patients undergoing nucleoside analogue therapy..
Zhao-Xia TAN ; Wen-Ting TAN ; Ying-Zi TANG ; Yun-Jie DAN ; Guo-Hong DENG
Chinese Journal of Hepatology 2009;17(2):91-94
OBJECTIVETo investigate the dynamic correlation between pre-S1 antigen, pre-S2 antigen and HBV DNA in the serum of chronic hepatitis B (CHB) patients undergoing nucleoside analogue therapy.
METHODS12 CHB patients with transient virological response after lamivudine treatment, and 20 patients treated with adefovir for 5 years were recruited in this study. Serum samples were collected at four time points when HBV DNA fluctuated sharply during lamivudine treatment, and at 0, 8, 12, 28, 52, 104, 156, 208, 260 weeks following adefovir treatment. HBV DNA was quantified by real-time PCR, pre-S1 and pre-S2 antigens were detected by ELISA.
RESULTSThe titers of pre-S1 and pre-S2 antigens were not correlated with the HBV DNA level in the serum of lamivudine treated patients. Only in one case of the adfovir treated patients, the decrease of pre-S1 and pre-S2 antigens was in parallel with the decrease of HBV DNA. Linear regression analysis indicated that neither pre-S1 antigen nor pre-S2 antigen was correlated with HBV DNA in the serum of lamivudine or adfovir treated patients (P more than 0.05).
CONCLUSIONOur results indicate that the titers of pre-S1 and pre-S2 antigens are not correlated with the serum HBV DNA in CHB patients undergoing nucleoside analogue therapy. Neither pre-S1 nor pre-S2 is a good predictor for the outcome of nucleoside analogue treatment.
DNA, Viral ; blood ; Hepatitis B virus ; genetics ; Hepatitis B, Chronic ; drug therapy ; Humans ; Lamivudine ; therapeutic use ; Real-Time Polymerase Chain Reaction
9.Psychiatric Morbidities Among Post Flood Elderly Victims In Kelantan, Malaysia
Tan Zi Ti ; Thaqief Mohamad Azaini ; Aini Sofiah Shahruniza ; Jabraan Jamil ; Yu Jie Si ; Mayple Tan Leou Jiun ; Nazhan Keeshan Nahdan Rengganathan
ASEAN Journal of Psychiatry 2016;17(2):209-216
The objective of this study was to assess the depression, PostTraumatic
Stress disorder (PTSD) and its associated factors among the elderly
flood victims in Tumpat, Kelantan. Methods: A cross-sectional study was
conducted in February 2015 in three villages in Tumpat, Kelantan. Face to face
interviews were conducted using socio-demographic performa, Malay version
Geriatric Depression Scale 14 (M-GDS 14), Malay version Trauma Screening
Questionnaire (TSQ) and flood-related questionnaires. Results: One hundred
elderly respondents completed the study. The prevalence of depression and
traumatic stress was 15.0% and 17.8%, respectively. The risk factors for
depression are being female (Odds ratio [OR] = 5, 95% Confidence Interval
[CI]: 1.27, 19.99), family history of mental illness (OR = 39.5, 95% CI: 1.41,
1063.08) and elderly with traumatic stress (OR= 5.38, 95% CI: 1.53, 18.9). There
was significant correlation between depression and traumatic stress (r= 0.36,
p<0.001). Conclusion: In the aftermath of a natural disaster, female and those
who have PTSC are more likely to develop depression. It is suggested to expand
this research to a bigger population as well as another flood affected states in
Malaysia. ASEAN Journal of Psychiatry, Vol. 17 (2): July – December 2016: XX
XX.
10.Clinical efficacy of Paroxetine combined with mid-frequency electrical pulse acupoint stimulation for premature ejaculation.
Tao LI ; Yan TAN ; Zi-ping XIE ; Wan-rong WANG ; Shu-hong WANG ; Hai OUYANG ; Zhao-peng KANG ; Sheng XIE
National Journal of Andrology 2015;21(10):921-924
OBJECTIVETo investigate the clinical value of Paroxetine combined with mid-frequency electrical pulse acupoint stimulation (EPAS) in the treatment of premature ejaculation (PE).
METHODSTotally 69 PE patients were equally assigned to receive oral Paroxetine 20 mg/d, mid-frequency EPAS, or oral Paroxetine 10 mg/d combined with mid-frequency EPAS (P + EPAS) , all for 8 weeks. We obtained the intravaginal ejaculation latency time (IELT) and Chinese Index of Premature Ejaculation (CIPE-5) scores of the patients before and after treatment, and compared adverse reactions among the three groups of patients.
RESULTSOne patient of the Paroxetine group gave up treatment because of abdominal pain and nausea. Compared with the baseline, the patients in the Paroxetine, EPAS, and P + EPAS groups all showed markedly increased IELT ([0.92 ± 0.11] vs [4.07 ± 0.11] min, P < 0.01; [0.92 ± 0.12] VS [2.78 ± 0.17] min P < 0.05; [0.91 ± 0.09] vs [5.31 ± 0.13], P < 0.01) and decreased CIPE-5 scores (12.5 ± 3.0 vs 22.0 ± 2.1, P < 0.01; 12.8 ± 2.9 vs 19.5 ± 1.9, P > 0.05; 13.1 ± 2.8 vs 25.2 ± 2.1, P 0.01), with statistically significant differences between the P + EPAS group and the other two (P < 0.05). The total effectiveness rate was 95.7% in the P + EPAS group, remarkably higher than in the Paroxetine (72.7%, P < 0.05) and the EPAS group (47.8, P < 0.01).
CONCLUSIONOral Paroxetine combined with mid-frequency EPAS has a higher safety and efficacy than either Paroxetine or EPAS alone in the treatment of PE.
Acupuncture Points ; Aged ; Combined Modality Therapy ; methods ; Ejaculation ; Electroacupuncture ; methods ; Humans ; Male ; Paroxetine ; therapeutic use ; Premature Ejaculation ; therapy ; Serotonin Uptake Inhibitors ; therapeutic use ; Treatment Outcome