1.On-demand Versus Continuous Maintenance Treatment With a Proton Pump Inhibitor for Mild Gastroesophageal Reflux Disease: A Prospective Randomized Multicenter Study
Da Hyun JUNG ; Young Hoon YOUN ; Hye-Kyung JUNG ; Seung Young KIM ; Cheal Wung HUH ; Cheol Min SHIN ; Jung-Hwan OH ; Kyu Chan HUH ; Moo In PARK ; Suck Chei CHOI ; Ki Bae KIM ; Seon-Young PARK ; Joong Goo KWON ; Yu Kyung CHO ; Jung Ho PARK ; Jeong Eun SHIN ; Eun Jeong GONG ; Jae Hak KIM ; Su Jin HONG ; Hyun Jin KIM ; Sam Ryong JEE ; Ju Yup LEE ; Kee Wook JUNG ; Hee Man KIM ; Kwang Jae LEE
Journal of Neurogastroenterology and Motility 2023;29(4):460-469
Background/Aims:
It remains unclear which maintenance treatment modality is most appropriate for mild gastroesophageal reflux disease (GERD).We aimed to compare on-demand treatment with continuous treatment using a proton pump inhibitor (PPI) in the maintenance treatment for patients with non-erosive GERD or mild erosive esophagitis.
Methods:
Patients whose GERD symptoms improved after 4 weeks of standard dose PPI treatment were prospectively enrolled at 25 hospitals.Subsequently, the enrolled patients were randomly assigned to either an on-demand or a continuous maintenance treatment group, and followed in an 8-week interval for up to 24 weeks.
Results:
A total of 304 patients were randomized to maintenance treatment (continuous, n = 151 vs on-demand, n = 153). The primary outcome, the overall proportion of unwillingness to continue the assigned maintenance treatment modality, failed to confirm the noninferiority of on-demand treatment (45.9%) compared to continuous treatment (36.1%). Compared with the on-demand group, the GERD symptom and health-related quality of life scores significantly more improved and the overall satisfaction score was significantly higher in the continuous treatment group, particularly at week 8 and week 16 of maintenance treatment. Work impairment scores were not different in the 2 groups, but the prescription cost was less in the on-demand group. Serum gastrin levels significantly elevated in the continuous treatment group, but not in the on-demand group.
Conclusions
Continuous treatment seems to be more appropriate for the initial maintenance treatment of non-erosive GERD or mild erosive esophagitis than on-demand treatment. Stepping down to on-demand treatment needs to be considered after a sufficient period of continuous treatment.
2. Potentiating activity of rhein in targeting of resistance genes in methicillin-resistant Staphylococcus aureus
Ryong GONG ; Dae LEE ; Jae LEE ; Doo CHOI ; Geum-Soog KIM ; Sang LEE ; Young-Seob LEE
Asian Pacific Journal of Tropical Medicine 2019;12(1):8-13
Objective: To investigate the synergistic effect between rhein (RHE) and oxacillin against Staphylococcus aureus (MRSA) at the gene level. Method: A minimum inhibitory concentration and checkerboard dilution test were conducted to evaluate antibacterial activity. Reverse transcriptase polymerase chain reaction was conducted to investigate the gene expressions. Results: RHE exhibited a minimum inhibitory concentration of 62.5-250.0 μg/mL against various MRSA strains and the reference strain, respectively. As revealed by the checkerboard assay, a combination of RHE and oxacillin exhibited synergistic or partially synergistic effects against MRSA strains. RHE decreased the expressions of mecA/blaZ in a dose-dependent manner. RHE also decreased the expressions of the regulator genes mecI/blaI and mecR1/blaR1. Conclusions: We suggest that RHE affects the activity of mecR1/blaR1, which is located in the cell membrane of MRSA and results in the suppression of mecA/mecI/mecR1 and blaZ/blaI/blaR1 gene expressions.
3.A Case of Recurrent Hydroamnios in association with Congenital Myotonic Dystrophy.
Ok Hyun YANG ; Min Kyu LEE ; Geun Ho LEE ; Du Sik GONG ; Tae Gee JANG ; Jong Woo BAEK ; Seung Ryong KANG ; Young Il BACK
Korean Journal of Perinatology 2005;16(3):250-254
Congenital myotonic dystrophy is an autosomal dominantly inherited myotonic dystrophy, rare form, with an incidence estimated to be 13/100,000 liveborns. Affected newborns can present with intrauterine growth retardation, prematurity, birth asphyxia, respiratory distress, and always exhibit generalized muscular hypotonia. Feeding problems are common and an association with protein losing enteropathy, hydrops fetalis, and persistent pulmonary hypertension of the newborn has been described. Twenty-five percent of the affected infants die within the first 18 months of life. The molecular basis is an unstable DNA fragment consisting of a variable expansion of a CTG triplet, Dystrophia myotonica-protein kinase (DMPK) which is localized on chromosome 19q 13.3. The severity of the disease is directly correlated to the length of the CTG sequence. Women with idiopathic polyhydroamnios, decreased fetal movement, prematurity, hypotonia, should be counselled family, and mother, father and baby should be evaluated congenital myotonic dystrophy, as PCR (polymerase chain reaction). It is possible to diagnose congenital myotonic dystrophy, by PCR, antenatal test, such as CVS, amniocentensis. We experienced a case of recurrent congenital myotonic dystrophy, with neonatal death, twice, and report with a review of related literatures.
Asphyxia
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DNA
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Fathers
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Female
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Fetal Growth Retardation
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Fetal Movement
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Humans
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Hydrops Fetalis
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Hypertension, Pulmonary
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Incidence
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Infant
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Infant, Newborn
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Mothers
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Muscle Hypotonia
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Myotonic Dystrophy*
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Parturition
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Phosphotransferases
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Polymerase Chain Reaction
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Protein-Losing Enteropathies
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Triplets

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