During the last decade, inflammation (carditis) and in- testinal metaplasia localized to immediately below the human gastro-oesophageal junction have received much attention in relation to the rising incidence of canc...During the last decade, inflammation (carditis) and in- testinal metaplasia localized to immediately below the human gastro-oesophageal junction have received much attention in relation to the rising incidence of cancer at this site. Since these histological findings are frequently observed even among those who are H pylori-negative, the causative factors for such histologic events at the human gastro-oesophageal junction remain obscure. A series of recent studies have demonstrated that a high level of salivary nitrite is sustained over several hours after the ingestion of a high nitrate meal, and that the nitrite in swallowed saliva is rapidly converted to nitric oxide by an acid catalyzed chemical reaction at the gastro-oesophageal junction. Eventually, a substantial amount of nitric oxide diffuses from the lumen into the adjacent tissue. Therefore, the human gastro-oesopha- geal junction is likely to be a region of high nitrosative stress. Considering the life-time exposure of the gastro- oesophageal junction to cytotoxic levels of nitric oxide, this may account for the high prevalence of inflamma- tion, intestinal metaplasia, and subsequent development of neoplasia at this site. Although gastric acid, pepsin, and bile acid have been intensively investigated as a cause of adenocarcinoma at the gastro-oesophageal junction and the distal esophagus, nitric oxide and the related nitrosative stress should also be examined.展开更多
To determine the clinical application of pulsed Doppler tissue imaging in assessing the left ventricular diasto-lic function and in discriminating between normal subjects and patients with hypertrophic cardiomyopathy ...To determine the clinical application of pulsed Doppler tissue imaging in assessing the left ventricular diasto-lic function and in discriminating between normal subjects and patients with hypertrophic cardiomyopathy with various stages of diastolic dysfunction. Methods We measured the peak diastolic velocities of mitral annulus in 81 patients with hypertrophic cardiomyopathy with various stages of diastolic dysfunction and 50 normal volunteers by Doppler tissue imaging using the apical window at 2-ch-amber and long apical views, respectively. The myocardial velocities were determined with use of variance F statistical analysis. Results Early diastolic myocardial velocities of mitral annulus were higher in normal subjects than in patients with hy-pertrophic cardiomyopathy with either delayed relaxation, pseudonormal filling, or restrictive filling. However, peak myocar-dial velocities of mitral annulus during atrial contraction were similar in normal subjects and patients with hypertrophic cardiomyopathy. Conclusion Doppler tissue imaging can directly reflect upon left diastolic ventricular function. Early phase of diastole was the best discriminator between control subjects and patients with hypertrophic cardiomyopathy.展开更多
Nowadays coronary heart disease has become one of the principal： diseases which harms papular health. In the ease of existing procedures,none of them can thoroughly cure the myocardial damage and cardiac function det...Nowadays coronary heart disease has become one of the principal： diseases which harms papular health. In the ease of existing procedures,none of them can thoroughly cure the myocardial damage and cardiac function deterioration caused by coronary heart disease. After 1990s,tbe concept of Heart Tissue Engineering has been proposed. By means of construction of engineering heart tissue in vitro, it can replace the damaged tissue in vivo and improve the cardiac function. The purpose of our review is to describe the principles,advance,and challenges of Heart Tissue Engineering.展开更多
MLS （Maroteaux-Lamy syndrome） or MPS VI （mucopolysaccharidosis VI） is an autosomal recessive pathology in which there is absence or low activity of the enzyme N-Acetylgalactosamine-4-Sulfatase, which hydrolyzes GA...MLS （Maroteaux-Lamy syndrome） or MPS VI （mucopolysaccharidosis VI） is an autosomal recessive pathology in which there is absence or low activity of the enzyme N-Acetylgalactosamine-4-Sulfatase, which hydrolyzes GAGs （glycosaminoglycans） in the body （mainly dermatan sulfate）. Consequently, there occurs lysosomal deposition of GAGs in connective tissue multisystemic. Myocardium and heart valves are frequently affected structures, presenting a direct correlation with the reports of complications and deaths. Case report： RGS, male, 3 years and 2 months, diagnosed with MPS VI from the first month of life, in weekly ERT （enzyme replacement therapy） since 4 months of age （inconstant）. At physical examination： normotensive, with holosystolic heart murmur 3＋/6＋ in mitral focus. Complementary tests： normal electrocardiogram, echocardiogram with pronounced mitral regurgitation, concentric left ventricular hypertrophy of moderate degree and mild aortic insufficiency. Discussion： Mitral valve disease is common in patients with MLS. Conditions such as cardiomyopathy, fibroelastosis, aneurysm and pulmonary hypertension may occur in these patients, indicative of morbidity and mortality. Early and constant ERT may be useful in slowing a progression of heart disease. Conclusions： follow-up with a cardiologist is important to evaluate the progression of cardiac complications in MPS VI. Constant and early ERT provides better prognosis for these patients.展开更多
OBJECTIVE: To evaluate the efficacy of integrated Traditional Chinese Medicine-Western Medicine(TCM-WM) in the treatment of acute onset pulmonary heart disease(PHD).METHODS: A total of 240 patients met the inclusion c...OBJECTIVE: To evaluate the efficacy of integrated Traditional Chinese Medicine-Western Medicine(TCM-WM) in the treatment of acute onset pulmonary heart disease(PHD).METHODS: A total of 240 patients met the inclusion criteria and were enrolled. These inpatients were divided into group A(treatment group) and B(control group) in order of admission according to the principles of randomization and control. The research was performed simultaneously in three hospitals. Two groups were given basic treatment that included: controlled oxygen therapy, active and effective anti-infection, maintaining airway patency,correcting O_2 deficiency and CO_2 retention, correcting acid-base imbalance and electrolyte disturbance, reducing pulmonary hypertension and treating right heart failure, nutritional support and treatment of complications. Group A was given basic treatment and integrated Traditional Chinese Medi-cine(TCM) differentiating therapy; group B was given basic therapy and a placebo that was similar in appearance and taste to TCM medicinal broth of pharmaceutical preparations, provided by Yibin Pharmaceutical Company(Yibin, China, Wuliangye Group).RESULTS: The mortality in the treatment group decreased by 4.98% compared with the control group. The treatment group reported improved ventilation, corrected hypoxemia, improved nutritional status and promoted digestive functions. It also significantly improved the patient's self-life skills, improved the patient's quality of life and could shorten the length of hospital stay.CONCLUSION: Comprehensive integrated TCMWM treatment showed good clinical efficacy toward the acute onset period of PHD patients.展开更多
文摘During the last decade, inflammation (carditis) and in- testinal metaplasia localized to immediately below the human gastro-oesophageal junction have received much attention in relation to the rising incidence of cancer at this site. Since these histological findings are frequently observed even among those who are H pylori-negative, the causative factors for such histologic events at the human gastro-oesophageal junction remain obscure. A series of recent studies have demonstrated that a high level of salivary nitrite is sustained over several hours after the ingestion of a high nitrate meal, and that the nitrite in swallowed saliva is rapidly converted to nitric oxide by an acid catalyzed chemical reaction at the gastro-oesophageal junction. Eventually, a substantial amount of nitric oxide diffuses from the lumen into the adjacent tissue. Therefore, the human gastro-oesopha- geal junction is likely to be a region of high nitrosative stress. Considering the life-time exposure of the gastro- oesophageal junction to cytotoxic levels of nitric oxide, this may account for the high prevalence of inflamma- tion, intestinal metaplasia, and subsequent development of neoplasia at this site. Although gastric acid, pepsin, and bile acid have been intensively investigated as a cause of adenocarcinoma at the gastro-oesophageal junction and the distal esophagus, nitric oxide and the related nitrosative stress should also be examined.
文摘To determine the clinical application of pulsed Doppler tissue imaging in assessing the left ventricular diasto-lic function and in discriminating between normal subjects and patients with hypertrophic cardiomyopathy with various stages of diastolic dysfunction. Methods We measured the peak diastolic velocities of mitral annulus in 81 patients with hypertrophic cardiomyopathy with various stages of diastolic dysfunction and 50 normal volunteers by Doppler tissue imaging using the apical window at 2-ch-amber and long apical views, respectively. The myocardial velocities were determined with use of variance F statistical analysis. Results Early diastolic myocardial velocities of mitral annulus were higher in normal subjects than in patients with hy-pertrophic cardiomyopathy with either delayed relaxation, pseudonormal filling, or restrictive filling. However, peak myocar-dial velocities of mitral annulus during atrial contraction were similar in normal subjects and patients with hypertrophic cardiomyopathy. Conclusion Doppler tissue imaging can directly reflect upon left diastolic ventricular function. Early phase of diastole was the best discriminator between control subjects and patients with hypertrophic cardiomyopathy.
文摘Nowadays coronary heart disease has become one of the principal： diseases which harms papular health. In the ease of existing procedures,none of them can thoroughly cure the myocardial damage and cardiac function deterioration caused by coronary heart disease. After 1990s,tbe concept of Heart Tissue Engineering has been proposed. By means of construction of engineering heart tissue in vitro, it can replace the damaged tissue in vivo and improve the cardiac function. The purpose of our review is to describe the principles,advance,and challenges of Heart Tissue Engineering.
文摘MLS （Maroteaux-Lamy syndrome） or MPS VI （mucopolysaccharidosis VI） is an autosomal recessive pathology in which there is absence or low activity of the enzyme N-Acetylgalactosamine-4-Sulfatase, which hydrolyzes GAGs （glycosaminoglycans） in the body （mainly dermatan sulfate）. Consequently, there occurs lysosomal deposition of GAGs in connective tissue multisystemic. Myocardium and heart valves are frequently affected structures, presenting a direct correlation with the reports of complications and deaths. Case report： RGS, male, 3 years and 2 months, diagnosed with MPS VI from the first month of life, in weekly ERT （enzyme replacement therapy） since 4 months of age （inconstant）. At physical examination： normotensive, with holosystolic heart murmur 3＋/6＋ in mitral focus. Complementary tests： normal electrocardiogram, echocardiogram with pronounced mitral regurgitation, concentric left ventricular hypertrophy of moderate degree and mild aortic insufficiency. Discussion： Mitral valve disease is common in patients with MLS. Conditions such as cardiomyopathy, fibroelastosis, aneurysm and pulmonary hypertension may occur in these patients, indicative of morbidity and mortality. Early and constant ERT may be useful in slowing a progression of heart disease. Conclusions： follow-up with a cardiologist is important to evaluate the progression of cardiac complications in MPS VI. Constant and early ERT provides better prognosis for these patients.
文摘OBJECTIVE: To evaluate the efficacy of integrated Traditional Chinese Medicine-Western Medicine(TCM-WM) in the treatment of acute onset pulmonary heart disease(PHD).METHODS: A total of 240 patients met the inclusion criteria and were enrolled. These inpatients were divided into group A(treatment group) and B(control group) in order of admission according to the principles of randomization and control. The research was performed simultaneously in three hospitals. Two groups were given basic treatment that included: controlled oxygen therapy, active and effective anti-infection, maintaining airway patency,correcting O_2 deficiency and CO_2 retention, correcting acid-base imbalance and electrolyte disturbance, reducing pulmonary hypertension and treating right heart failure, nutritional support and treatment of complications. Group A was given basic treatment and integrated Traditional Chinese Medi-cine(TCM) differentiating therapy; group B was given basic therapy and a placebo that was similar in appearance and taste to TCM medicinal broth of pharmaceutical preparations, provided by Yibin Pharmaceutical Company(Yibin, China, Wuliangye Group).RESULTS: The mortality in the treatment group decreased by 4.98% compared with the control group. The treatment group reported improved ventilation, corrected hypoxemia, improved nutritional status and promoted digestive functions. It also significantly improved the patient's self-life skills, improved the patient's quality of life and could shorten the length of hospital stay.CONCLUSION: Comprehensive integrated TCMWM treatment showed good clinical efficacy toward the acute onset period of PHD patients.
