Background: One of the serious problems affecting pregnant females is Hyperemesis gravidarum. Different theories were suggested. But the main etiology is still unknown. Objectives: To determine the incidence of Helico...Background: One of the serious problems affecting pregnant females is Hyperemesis gravidarum. Different theories were suggested. But the main etiology is still unknown. Objectives: To determine the incidence of Helicobacter pylori infection in cases of Hyperemesis gravidarum. Patients and methods: Case control study of 80 cases (40 cases of Hyperemesis gravidarum (HEG) and 40 cases of normal pregnant females). Determination of Helicobacter pylori antibodies was done in serum and stool for the two studied groups. Results: 75% of cases of HEG were positive of Helicobacter pylori in stool samples and 37.50% of normal pregnant females. These results were statistically significant (P = 0.001). The prevalence of HpIgG AB and HpSAB was 77.5% in the patients group with HEG, and 55.0% in control studied group (P = 0.05). There was a significant difference between HEG cases and normal pregnancy as regards serum sodium (0.042). Conclusions: Infection by Helicobacter pylori may be one of the risk factors for HEG. Helicobacter pylori AB in both serum and stool is higher in HEG cases than in normal pregnant females.展开更多
To clarify the intrinsic food preference mechanism, we investigated brain neurophysiological responses to unpleasant gustatory stimuli using electroencephalogram (EEG) and near-infrared hemoencepalogram (NIR-HEG) simu...To clarify the intrinsic food preference mechanism, we investigated brain neurophysiological responses to unpleasant gustatory stimuli using electroencephalogram (EEG) and near-infrared hemoencepalogram (NIR-HEG) simultaneously. A conventional delayed response task based on Go/Nogo paradigm was adopted to extract real brain response components from spontaneous background signals. We found excessive evoked EEG potential responses to both bitter and sour stimuli, while we didn’t find excessive changes in purified water condition. These potentials appeared before P3, hence, they potentially predicted unconscious attention to the gustatory stimuli. We also identified a late contingent negative variation (CNV) and corresponding P3 for sour stimulus. In addition, NIR-HEG responses showed relative changes for every stimulus and we considered that these NIR-HEG signal changes were attributed to the prefrontal cortex activity for regulating negative emotional valence against aversive tastes typically including sour and bitter. In spite of limitation to timing accuracy of taste presentations, the early markers found in this study could be fundamentals for investigating individual food preference.展开更多
文摘Background: One of the serious problems affecting pregnant females is Hyperemesis gravidarum. Different theories were suggested. But the main etiology is still unknown. Objectives: To determine the incidence of Helicobacter pylori infection in cases of Hyperemesis gravidarum. Patients and methods: Case control study of 80 cases (40 cases of Hyperemesis gravidarum (HEG) and 40 cases of normal pregnant females). Determination of Helicobacter pylori antibodies was done in serum and stool for the two studied groups. Results: 75% of cases of HEG were positive of Helicobacter pylori in stool samples and 37.50% of normal pregnant females. These results were statistically significant (P = 0.001). The prevalence of HpIgG AB and HpSAB was 77.5% in the patients group with HEG, and 55.0% in control studied group (P = 0.05). There was a significant difference between HEG cases and normal pregnancy as regards serum sodium (0.042). Conclusions: Infection by Helicobacter pylori may be one of the risk factors for HEG. Helicobacter pylori AB in both serum and stool is higher in HEG cases than in normal pregnant females.
文摘To clarify the intrinsic food preference mechanism, we investigated brain neurophysiological responses to unpleasant gustatory stimuli using electroencephalogram (EEG) and near-infrared hemoencepalogram (NIR-HEG) simultaneously. A conventional delayed response task based on Go/Nogo paradigm was adopted to extract real brain response components from spontaneous background signals. We found excessive evoked EEG potential responses to both bitter and sour stimuli, while we didn’t find excessive changes in purified water condition. These potentials appeared before P3, hence, they potentially predicted unconscious attention to the gustatory stimuli. We also identified a late contingent negative variation (CNV) and corresponding P3 for sour stimulus. In addition, NIR-HEG responses showed relative changes for every stimulus and we considered that these NIR-HEG signal changes were attributed to the prefrontal cortex activity for regulating negative emotional valence against aversive tastes typically including sour and bitter. In spite of limitation to timing accuracy of taste presentations, the early markers found in this study could be fundamentals for investigating individual food preference.
