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1.
Cochrane Database Syst Rev ; 10: CD013337, 2022 10 03.
Article in English | MEDLINE | ID: mdl-36190739

ABSTRACT

BACKGROUND: Antipsychotic-induced weight gain is an extremely common problem in people with schizophrenia and is associated with increased morbidity and mortality. Adjunctive pharmacological interventions may be necessary to help manage antipsychotic-induced weight gain. This review splits and updates a previous Cochrane Review that focused on both pharmacological and behavioural approaches to this problem. OBJECTIVES: To determine the effectiveness of pharmacological interventions for preventing antipsychotic-induced weight gain in people with schizophrenia. SEARCH METHODS: The Cochrane Schizophrenia Information Specialist searched Cochrane Schizophrenia's Register of Trials on 10 February 2021. There are no language, date, document type, or publication status limitations for inclusion of records in the register. SELECTION CRITERIA: We included all randomised controlled trials (RCTs) that examined any adjunctive pharmacological intervention for preventing weight gain in people with schizophrenia or schizophrenia-like illnesses who use antipsychotic medications. DATA COLLECTION AND ANALYSIS: At least two review authors independently extracted data and assessed the quality of included studies. For continuous outcomes, we combined mean differences (MD) in endpoint and change data in the analysis. For dichotomous outcomes, we calculated risk ratios (RR). We assessed risk of bias for included studies and used GRADE to judge certainty of evidence and create summary of findings tables. The primary outcomes for this review were clinically important change in weight, clinically important change in body mass index (BMI), leaving the study early, compliance with treatment, and frequency of nausea. The included studies rarely reported these outcomes, so, post hoc, we added two new outcomes, average endpoint/change in weight and average endpoint/change in BMI. MAIN RESULTS: Seventeen RCTs, with a total of 1388 participants, met the inclusion criteria for the review. Five studies investigated metformin, three topiramate, three H2 antagonists, three monoamine modulators, and one each investigated monoamine modulators plus betahistine, melatonin and samidorphan. The comparator in all studies was placebo or no treatment (i.e. standard care alone). We synthesised all studies in a quantitative meta-analysis. Most studies inadequately reported their methods of allocation concealment and blinding of participants and personnel. The resulting risk of bias and often small sample sizes limited the overall certainty of the evidence. Only one reboxetine study reported the primary outcome, number of participants with clinically important change in weight. Fewer people in the treatment condition experienced weight gains of more than 5% and more than 7% of their bodyweight than those in the placebo group (> 5% weight gain RR 0.27, 95% confidence interval (CI) 0.11 to 0.65; 1 study, 43 participants; > 7% weight gain RR 0.24, 95% CI 0.07 to 0.83; 1 study, 43 participants; very low-certainty evidence). No studies reported the primary outcomes, 'clinically important change in BMI', or 'compliance with treatment'. However, several studies reported 'average endpoint/change in body weight' or 'average endpoint/change in BMI'. Metformin may be effective in preventing weight gain (MD -4.03 kg, 95% CI -5.78 to -2.28; 4 studies, 131 participants; low-certainty evidence); and BMI increase (MD -1.63 kg/m2, 95% CI -2.96 to -0.29; 5 studies, 227 participants; low-certainty evidence). Other agents that may be slightly effective in preventing weight gain include H2 antagonists such as nizatidine, famotidine and ranitidine (MD -1.32 kg, 95% CI -2.09 to -0.56; 3 studies, 248 participants; low-certainty evidence) and monoamine modulators such as reboxetine and fluoxetine (weight: MD -1.89 kg, 95% CI -3.31 to -0.47; 3 studies, 103 participants; low-certainty evidence; BMI: MD -0.66 kg/m2, 95% CI -1.05 to -0.26; 3 studies, 103 participants; low-certainty evidence). Topiramate did not appear effective in preventing weight gain (MD -4.82 kg, 95% CI -9.99 to 0.35; 3 studies, 168 participants; very low-certainty evidence). For all agents, there was no difference between groups in terms of individuals leaving the study or reports of nausea. However, the results of these outcomes are uncertain given the very low-certainty evidence. AUTHORS' CONCLUSIONS: There is low-certainty evidence to suggest that metformin may be effective in preventing weight gain. Interpretation of this result and those for other agents, is limited by the small number of studies, small sample size, and short study duration. In future, we need studies that are adequately powered and with longer treatment durations to further evaluate the efficacy and safety of interventions for managing weight gain.


Subject(s)
Antipsychotic Agents , Melatonin , Metformin , Schizophrenia , Antipsychotic Agents/adverse effects , Betahistine/therapeutic use , Famotidine/therapeutic use , Fluoxetine/therapeutic use , Humans , Melatonin/therapeutic use , Metformin/therapeutic use , Nausea/drug therapy , Nizatidine/therapeutic use , Ranitidine/therapeutic use , Reboxetine/therapeutic use , Schizophrenia/drug therapy , Schizophrenia/prevention & control , Topiramate/therapeutic use , Weight Gain
2.
Br J Cancer ; 124(10): 1647-1652, 2021 05.
Article in English | MEDLINE | ID: mdl-33762718

ABSTRACT

BACKGROUND: Ranitidine, a histamine 2 blocker, is the standard of care to prevent hypersensitivity reactions (HSRs) caused by paclitaxel infusion. However, the added value of ranitidine in this premedication regimen is controversial. Therefore, we compared the incidence of HSRs during paclitaxel treatment between a standard regimen including ranitidine and a regimen without ranitidine. METHODS: This prospective, pre-post interventional, non-inferiority study compared the standard premedication regimen (N = 183) with dexamethasone, clemastine and ranitidine with a premedication regimen without ranitidine (N = 183). The primary outcome was the incidence of HSR grade ≥3. Non-inferiority was determined by checking whether the upper bound of the two-sided 90% confidence interval (CI) for the difference in HSR rates excluded the +6% non-inferiority margin. RESULTS: In both the pre-intervention (with ranitidine) and post-intervention (without ranitidine) group 183 patients were included. The incidence of HSR grade ≥3 was 4.4% (N = 8) in the pre-intervention group and 1.6% (N = 3) in the post-intervention group: difference -2.7% (90% CI: -6.2 to 0.1). CONCLUSIONS: As the upper boundary of the 90% CI does not exceed the predefined non-inferiority margin of +6%, it can be concluded that a premedication regimen without ranitidine is non-inferior to a premedication regimen with ranitidine. CLINICAL TRIAL REGISTRATION: www.trialregister.nl ; NL8173.


Subject(s)
Drug Hypersensitivity/prevention & control , Neoplasms/drug therapy , Paclitaxel/adverse effects , Premedication/methods , Ranitidine/therapeutic use , Adult , Aged , Aged, 80 and over , Chemoprevention/adverse effects , Chemoprevention/methods , Clemastine/administration & dosage , Dexamethasone/administration & dosage , Drug Hypersensitivity/epidemiology , Drug Hypersensitivity/pathology , Drug Therapy, Combination , Equivalence Trials as Topic , Female , Histamine H2 Antagonists/administration & dosage , Histamine H2 Antagonists/therapeutic use , Humans , Infusions, Intravenous , Male , Medical Futility , Middle Aged , Neoplasms/epidemiology , Neoplasms/pathology , Netherlands/epidemiology , Paclitaxel/administration & dosage , Premedication/adverse effects , Ranitidine/administration & dosage , Severity of Illness Index , Treatment Outcome
3.
Dig Dis Sci ; 66(1): 105-113, 2021 01.
Article in English | MEDLINE | ID: mdl-32107679

ABSTRACT

BACKGROUND: The accidental ingestion of the third larval stage of Anisakis can cause acute clinical symptoms, which are relieved via extraction of the larvae. Although this is a highly effective technique, it can only be practiced when the larvae are found in accessible areas of the gastrointestinal tract, and therefore instead the condition has often been treated using various different drugs. AIMS: This study evaluates the effectiveness of gastric acid secretion inhibitors (omeprazole and ranitidine), gastric mucosal protectants (sucralfate) and anthelmintics (mebendazole and flubendazole) in treating anisakiasis in Wistar rats. METHODS: Rats were infected with Anisakis-type I larvae and administered the drugs via a gastric probe. Data were recorded regarding the number of live and dead larvae, their location both within the animal and in its feces, and the presence of gastrointestinal lesions. Additionally, gastric pH was measured and histology performed. RESULTS: While rats in all experimental groups exhibited lesions; those treated with ranitidine and mebendazole showed significantly fewer lesions (50% and 35% of rats exhibited lesions, respectively). Histological examination of the gastric lesions revealed infection-induced changes, but no significant differences were observed between the treated and untreated rats. CONCLUSIONS: Mebendazole was found to be most efficacious in preventing gastrointestinal lesions, followed by ranitidine, which was the most effective antacid of those studied. Both these drugs could thus be considered as part of the conservative management of anisakiasis.


Subject(s)
Anisakiasis/drug therapy , Anthelmintics/therapeutic use , Anti-Ulcer Agents/therapeutic use , Antinematodal Agents/therapeutic use , Disease Models, Animal , Sucralfate/therapeutic use , Acute Disease , Animals , Anisakiasis/pathology , Anthelmintics/pharmacology , Anti-Ulcer Agents/pharmacology , Antinematodal Agents/pharmacology , Drug Evaluation, Preclinical/methods , Female , Fishes/parasitology , Gastrointestinal Tract/drug effects , Gastrointestinal Tract/parasitology , Gastrointestinal Tract/pathology , Mebendazole/pharmacology , Mebendazole/therapeutic use , Omeprazole/pharmacology , Omeprazole/therapeutic use , Ranitidine/pharmacology , Ranitidine/therapeutic use , Rats , Rats, Wistar , Sucralfate/pharmacology
4.
Int J Mol Sci ; 22(6)2021 Mar 18.
Article in English | MEDLINE | ID: mdl-33803769

ABSTRACT

The aggregation of amyloid ß (Aß) peptides and deposition of amyloid plaques are implicated in the pathogenesis of Alzheimer's disease (AD). Therefore, blocking Aß aggregation with small molecules has been proposed as one therapeutic approach for AD. In the present study, a series of ranitidine analogs containing cyclic imide isosteres were synthesized and their inhibitory activities toward Aß aggregation were evaluated using in vitro thioflavin T assays. The structure-activity relationship revealed that the 1,8-naphthalimide moiety provided profound inhibition of Aß aggregation and structural modifications on the other parts of the parent molecule (compound 6) maintained similar efficacy. Some of these ranitidine analogs also possessed potent inhibitory activities of acetylcholinesterase (AChE), which is another therapeutic target in AD. These ranitidine analogs, by addressing both Aß aggregation and AChE, offer insight into the key chemical features of a new type of multi-target directed ligands for the pharmaceutical treatment of AD.


Subject(s)
Alzheimer Disease/drug therapy , Drug Design , Ranitidine/chemical synthesis , Ranitidine/therapeutic use , Amyloid beta-Peptides/metabolism , Animals , Cattle , Cholinesterase Inhibitors/pharmacology , Cholinesterase Inhibitors/therapeutic use , Imides/chemistry , Ligands , Protein Aggregates/drug effects , Ranitidine/chemistry
5.
BMC Public Health ; 20(1): 714, 2020 May 19.
Article in English | MEDLINE | ID: mdl-32429936

ABSTRACT

BACKGROUND: Self-medication (SM) is the practice of consuming medication without the consultation of physician. The drugs most commonly self-medicated are paracetamol, analgesics, ranitidine, oral rehydration solution and antibiotics. The objective of the study was to assess the SM status and its causes in Pokhara valley of Nepal. METHOD: The study was conducted among the people residing in Pokhara metropolitan city. The study duration was of 4 months from April to July, 2018. The study population were patients attending health general and oral health screening programs at Baidam, Birauta, Hemja and Pame areas of Pokhara. Structured questionnaire was used to collect demographics of the patients and the details of the usage of self-medication. RESULT: Out of 201 patients, 38.2% patients were found to be self-medicating. The most common illness sought for SM was ache (headache, body ache) in 50% subjects followed by cough and cold in 31% and gastritis in 23%. Paracetamol was the drug consumed by 16 subjects followed by nimesulide by 11. Lack of knowledge about the disadvantages of SM led to self-medication in 65% of respondents. The personnel most commonly consulted for medication were pharmacists (60%). CONCLUSION: The trend of SM is high in Pokhara valley. The comedics were consulted most often for SM due to lack of knowledge of consultation to physicians. The public should be made aware about SM.


Subject(s)
Pharmaceutical Services/statistics & numerical data , Referral and Consultation/statistics & numerical data , Self Medication/statistics & numerical data , Acetaminophen/therapeutic use , Adult , Analgesics/therapeutic use , Anti-Bacterial Agents/therapeutic use , Common Cold/drug therapy , Common Cold/epidemiology , Cough/drug therapy , Cough/epidemiology , Cross-Sectional Studies , Female , Fluid Therapy/statistics & numerical data , Humans , Male , Middle Aged , Nepal/epidemiology , Pain/drug therapy , Pain/epidemiology , Ranitidine/therapeutic use , Surveys and Questionnaires
6.
BMC Pediatr ; 20(1): 380, 2020 08 11.
Article in English | MEDLINE | ID: mdl-32781992

ABSTRACT

BACKGROUND: The current paradigm for treating toddler's diarrhea comprises dietary modification and fluid restriction. Previous studies show that probiotics and proton-pump inhibitors (PPIs) or H2 blockers could control diarrhea associated with functional gastrointestinal disorders (FGIDs). This study aims to determine and compare the efficacy of a short course of oral ranitidine and a probiotic in the treatment of toddler's diarrhea. METHODS: This study was a parallel-group randomized controlled trial (RCT). We sequentially enrolled 40 patients who met the eligibility criteria. We randomly assigned 20 patients to the oral ranitidine group, ten patients to the probiotic group, and ten patients to the placebo group. In the oral ranitidine group, patients received oral ranitidine (3 mg/kg/day) once daily for 10 days; in the probiotic and placebo groups, they were administered 5 to 10 billion colony-forming units (CFUs) per day of lyophilized Lactobacillus rhamnosus and 50 mg of once-daily oral vitamin C tablet respectively for 10 days. Stool frequency and consistency on the 10th day of the interventions were recorded as the primary outcomes. We used the Student's t-test to determine if there were significant differences in the mean daily stool frequencies in the three intervention groups. A p-value < 0.05 was adopted as the level of statistical significance. RESULTS: In the ranitidine group, stool frequency decreased significantly from an average of five per day on the first day to an average of approximately one per day on the 10th day of intervention (t = 10.462, p <  0.001). Additionally, stool consistency normalized on the 10th day of intervention. In the probiotic group, there was a significant reduction in stool frequency from an average of five per day on the first day to four per day on the 10th day (t = 2.586, p = 0.041), although stool consistency remained loose. However, stool consistency and frequency were not significantly affected in the placebo group (t = 1.964, p = 0.072). CONCLUSION: Oral ranitidine is more effective than probiotics in reducing stool frequency and normalizing stool consistency in toddler's diarrhea. We recommend multi-center trials with appropriate study designs to confirm and validate this finding. TRIAL REGISTRATION: ISRCTN, ISRCTN10783996 . Registered 8 April 2016-Registered retrospectively.


Subject(s)
Probiotics , Ranitidine , Anti-Bacterial Agents/therapeutic use , Child, Preschool , Diarrhea/drug therapy , Double-Blind Method , Feces , Humans , Probiotics/therapeutic use , Ranitidine/therapeutic use , Treatment Outcome
7.
Am J Perinatol ; 37(4): 415-420, 2020 03.
Article in English | MEDLINE | ID: mdl-30780184

ABSTRACT

OBJECTIVE: The use of acid suppression therapies in newborns lacks efficacy and is associated with adverse effects. Point-of-care (POC) assessment of gastric aspirate pH may provide an objective, noninvasive measure of gastric acidity in tube fed infants. We conducted the present study to characterize the POC gastric pH levels in gastric tube fed infants before and after initiation of enteral omeprazole or ranitidine. STUDY DESIGN: Retrospective cohort study of infants with gastric aspirate pH levels determined by POC pH strips. Gastric pH levels recorded during 7 days before and 14 days after medication initiation were compared using Wilcoxon's sign-rank tests. RESULTS: Among 307 evaluated infants, 284 (92%) had a median gastric pH level ≥4 in 7 days prior to ranitidine or omeprazole. In 14 days after medication initiation, the median gastric pH of infants with pretreatment median gastric pH < 4 increased to 4.5 and 5 (p < 0.01) in the ranitidine and omeprazole groups, respectively. There was no change in infants with pretreatment median gastric pH ≥4. CONCLUSION: Among infants receiving gastric tube feedings and enteral omeprazole or ranitidine, only those with a pretreatment gastric pH level <4 demonstrated a significant increase in gastric pH. Validation of our findings against esophageal pH multichannel intraluminal impedance testing is needed.


Subject(s)
Anti-Ulcer Agents/pharmacology , Enteral Nutrition , Gastric Acidity Determination , Hydrogen-Ion Concentration/drug effects , Omeprazole/pharmacology , Point-of-Care Testing , Ranitidine/pharmacology , Anti-Ulcer Agents/therapeutic use , Critical Care , Female , Gastric Acid/physiology , Humans , Infant, Newborn , Infant, Premature , Intensive Care Units, Neonatal , Intubation, Gastrointestinal , Male , Omeprazole/therapeutic use , Ranitidine/therapeutic use , Retrospective Studies
8.
Molecules ; 25(18)2020 Sep 15.
Article in English | MEDLINE | ID: mdl-32942704

ABSTRACT

Cyperus has been commonly used as a multi-use medicinal plant in folk medicine worldwide. The objectives of our study were to determine the different metabolites in the Cyperus conglomeratus Rottb. methanol extract, and to assess its in vivo gastroprotective effect in ethanol-induced gastric ulcer model in rats. Serum levels of galactin-3 and TNF-α were employed as biochemical markers. To pinpoint for active agents, comprehensive metabolites profiling of extract via UPLC-qTOF-MS/MS was employed. A total of 77 chromatographic peaks were detected, of which 70 were annotated. The detected metabolites were categorized into phenolic acids and their derivatives, flavonoids, stilbenes, aurones, quinones, terpenes, and steroids. Rats were divided into six groups; healthy control, ulcer control, standard drug group, and 25, 50, 100 mg/kg of C. conglomeratus treated rats. Pre-treatment with C. conglomeratus alcohol extract significantly reduced galactin-3, and TNF-α in ethanol-induced ulcer model at 25, 50, and 100 mg/kg. Further histopathological and histochemical studies revealed moderate erosion of superficial epithelium, few infiltrated inflammatory cells, and depletion of gastric tissue glycoprotein in the ulcer group. Treatment with the extract protected the gastric epithelial cells in a dose-dependent manner. It could be concluded that C. conglomeratus extract provides significant gastroprotective activity in ethanol-induced gastric ulcer and ought to be included in nutraceuticals in the future for ulcer treatment.


Subject(s)
Anti-Ulcer Agents/chemistry , Cyperus/chemistry , Phytochemicals/chemistry , Plant Extracts/chemistry , Administration, Oral , Animals , Anti-Ulcer Agents/pharmacology , Anti-Ulcer Agents/therapeutic use , Chromatography, High Pressure Liquid , Cyperus/metabolism , Ethanol/toxicity , Female , Galectin 3/blood , Gastric Mucosa/drug effects , Gastric Mucosa/pathology , Phytochemicals/pharmacology , Phytochemicals/therapeutic use , Plant Components, Aerial/chemistry , Plant Components, Aerial/metabolism , Ranitidine/therapeutic use , Rats , Rats, Wistar , Stomach Ulcer/chemically induced , Stomach Ulcer/drug therapy , Stomach Ulcer/pathology , Tandem Mass Spectrometry , Tumor Necrosis Factor-alpha/blood
9.
Pediatr Dermatol ; 36(4): 486-489, 2019 Jul.
Article in English | MEDLINE | ID: mdl-30828864

ABSTRACT

Mastocytosis is an accumulation of clonal mast cells within tissues, commonly caused by mutations in the KIT proto-oncogene. This report describes the management of a neonate with diffuse cutaneous mastocytosis (DCM) caused by a rare activating KIT mutation, specifically internal tandem duplication of the Ala502Tyr503 pair on exon 9, and reviews current data regarding work-up of DCM in pediatric patients.


Subject(s)
Gene Expression Regulation, Developmental , Mastocytosis/drug therapy , Mastocytosis/genetics , Proto-Oncogene Proteins c-kit/genetics , Cetirizine/therapeutic use , Diphenhydramine/therapeutic use , Drug Therapy, Combination , Humans , Infant, Newborn , Male , Mastocytosis/diagnosis , Prognosis , Proto-Oncogene Mas , Ranitidine/therapeutic use , Severity of Illness Index , Treatment Outcome
10.
Drug Dev Ind Pharm ; 45(2): 231-243, 2019 Feb.
Article in English | MEDLINE | ID: mdl-30260710

ABSTRACT

OBJECTIVE: Oral gastroretentive system is one of the site-specific drug delivery system, which is designed to be retained in upper GIT for a prolonged time. Ranitidine hydrochloride (RHCl), which is used frequently in treatment of peptic ulcer, is a suitable candidate for gastroretentive delivery systems. Dependently, floating oil-entrapped alginate beads of RHCl were developed and evaluated as an approach to site-specific delivery avoiding colonic degradation and enhancing both bioavailability and the proposed local effect. METHODS: Different formulations of floating beads were suggested and randomized using 24 full factorial design. Optimized formulation was subjected for in vivo studies to measure the oral bioavailability and the healing effect of induced peptic ulcers. RESULTS: Beads size ranged from 1.32 to 2.3 mm. All beads revealed excellent floating capabilities. Optimum formulation (F12) has entrapment efficiency of 70%, drug loading of 7% and 71% RHCl released after 6 h. SEM of F12 shows a grossly spherical structure with presence of oil droplets distributed throughout structure. AUC obtained from F12 was nonsignificantly higher than that of a commercial tablet. Signs of ulcer healing appeared clearly with F12 through appearance of granulation tissue, collagen fibers and newly formed blood vessels. Healing rate and extent obtained with a commercial tablet were less than F12. Quantitative analysis confirmed histopathological findings. CONCLUSION: Floating oil-entrapped beads are a promising approach for RHCl delivery to remain in stomach for a longer time ensuring site-specific delivery and consequently, enhancing local healing effect of peptic ulcers.


Subject(s)
Anti-Ulcer Agents/administration & dosage , Anti-Ulcer Agents/therapeutic use , Oils/chemistry , Peptic Ulcer/drug therapy , Ranitidine/administration & dosage , Ranitidine/therapeutic use , Animals , Anti-Ulcer Agents/pharmacokinetics , Biological Availability , Collagen/metabolism , Drug Compounding , Drug Delivery Systems , Excipients/chemistry , Granulation Tissue/pathology , Male , Neovascularization, Physiologic/drug effects , Particle Size , Peptic Ulcer/pathology , Rabbits , Ranitidine/pharmacokinetics
11.
Rev Med Liege ; 73(2): 61-64, 2018 Feb.
Article in French | MEDLINE | ID: mdl-29517867

ABSTRACT

We report the history of a 15-year old patient with a hypermobile Ehlers-Danlos syndrome (hEDS) (his mother, his two brothers and his sister have the same phenotype as him). He suffers mainly from a severe mast cell activation syndrome (MCAS) with an overreaction of the skin to any kind of contact (water of the shower, clothes, bed sheets) but he has also fatigue, headaches, and rash. This impressive rash is exacerbated after the shower and he has the urge to rest («shower's sign¼). We describe the MCAS and its easy, fast and very effective medication management, without any significant side effects as well as its frequent association with the hEDS. We finally introduce the original term of «MASED¼ to this MCAS, associated, linked or entangled to hEDS.


Nous présentons le cas d'un jeune patient âgé de 15 ans atteint d'un syndrome d'Ehlers-Danlos (SED) de type hypermobile (sa mère, ses deux frères et sa soeur présentent le même phénotype que lui). Il présente principalement un syndrome d'activation mastocytaire (SAMA) sévère avec une atteinte démesurée au niveau de la peau exposée au simple contact (avec l'eau, les draps, les vêtements), mais également de la fatigue, des céphalées ainsi que des éruptions qui sont exacerbées après la douche avec l'envie impérieuse de se reposer (le «signe de la douche¼). Nous décrivons le SAMA, sa prise en charge médicamenteuse simple, rapide et efficace et dépourvue d'effets secondaires notables ainsi que son association fréquente au SED. Nous introduisons finalement le terme original de «SAMED¼ à ce SAMA associé, lié ou intriqué au SED.


Subject(s)
Ehlers-Danlos Syndrome/complications , Mastocytosis/complications , Mastocytosis/drug therapy , Acetates/therapeutic use , Adolescent , Antioxidants/therapeutic use , Ascorbic Acid/therapeutic use , Cetirizine/therapeutic use , Cyclopropanes , Histamine H1 Antagonists, Non-Sedating/therapeutic use , Histamine H2 Antagonists/therapeutic use , Humans , Male , Quinolines/therapeutic use , Ranitidine/therapeutic use , Sulfides
12.
BMC Infect Dis ; 17(1): 375, 2017 05 30.
Article in English | MEDLINE | ID: mdl-28558748

ABSTRACT

BACKGROUND: The inhibition of gastric acid secretion with ranitidine is frequently prescribed off-label to newborns admitted to neonatal intensive care units (NICU). Some studies show that the use of inhibitors of gastric acid secretion (IGAS) may predispose to infections and necrotising enterocolitis (NEC), but there are few data to confirm this association. This study aimed to compare the rates of neonatal infections and NEC among preterm infants (<37 weeks gestation) hospitalised in a NICU exposed or not to treatment with ranitidine. METHODS: A retrospective cohort study was conducted with all consecutive preterm newborns admitted to a NICU between August-2014 and October-2015. The rates of infection, NEC, and death of newborns exposed or not to ranitidine were recorded. RESULTS: A total of 300 newborns were enrolled, of which 115 had received ranitidine and 185 had not. The two groups were similar with regard to the main demographic and clinical characteristics. Forty-eight (41.7%) of the 115 infants exposed to ranitidine and 49 (26.5%) of the 185 infants not exposed were infected (RR = 1.6, 95%CI 1.1-2.2, p = 0.006). The late onset (>48 h) blood culture positive infection rate was higher in the group exposed to ranitidine than in the untreated group (13.0% vs. 3.8%, p = 0.001). There was no significant association between the use of ranitidine and NEC (Bell stage >II) (p = 0.36). The mortality rate risk was 4-fold higher in infants receiving ranitidine (16.5% vs. 8.6%, p < 0.001). CONCLUSION: Ranitidine use in neonates was associated with an increased risk of infections and mortality, but not with NEC.


Subject(s)
Cross Infection/epidemiology , Enterocolitis, Necrotizing/epidemiology , Ranitidine/adverse effects , Adult , Brazil/epidemiology , Cohort Studies , Cross Infection/chemically induced , Cross Infection/etiology , Enterocolitis, Necrotizing/chemically induced , Enterocolitis, Necrotizing/etiology , Female , Gestational Age , Hospital Mortality , Humans , Infant , Infant, Newborn , Infant, Premature , Intensive Care Units, Neonatal/statistics & numerical data , Male , Ranitidine/administration & dosage , Ranitidine/therapeutic use , Retrospective Studies
13.
Am J Ther ; 24(6): e751-e757, 2017.
Article in English | MEDLINE | ID: mdl-26808355

ABSTRACT

Bismuth salts exert their activity within the upper gastrointestinal tract through action of luminal bismuth. Bismuth exerts direct bactericidal effect on Helicobacter pylori by different ways: forms complexes in the bacterial wall and periplasmic space, inhibits different enzymes, ATP synthesis, and adherence of the bacteria to the gastric mucosa. Bismuth also helps ulcer healing by acting as a barrier to the aggressive factors and increasing mucosal protective factors such as prostaglandin, epidermal growth factor, and bicarbonate secretion. To date, no resistance to bismuth has been reported. Also synergism between bismuth salts and antibiotics was present. It was shown that metronidazole and clarithromycin resistant H. pylori strains become susceptible if they are administered together with bismuth. Bismuth-containing quadruple therapy was recommended both by the Second Asia-Pacific Consensus Guidelines and by the Maastricht IV/Florence Consensus Report as an alternative first choice regimen to standard triple therapy, in areas with low clarithromycin resistance, and it is recommended as the first-line therapeutic option in areas with a high prevalence of clarithromycin resistance. Greater than 90% eradication success can be obtained by bismuth-containing quadruple therapy. Choosing bismuth as an indispensable part of first-line therapy is logical as both metronidazole and clarithromycin resistances can be overcome by adding bismuth to the regimen.


Subject(s)
Antacids/therapeutic use , Anti-Bacterial Agents/therapeutic use , Bismuth/therapeutic use , Disease Eradication/methods , Helicobacter Infections/prevention & control , Helicobacter pylori/drug effects , Antacids/pharmacology , Anti-Bacterial Agents/pharmacology , Bismuth/pharmacology , Clarithromycin/pharmacology , Clarithromycin/therapeutic use , Drug Resistance, Bacterial/drug effects , Drug Therapy, Combination/methods , Drug Therapy, Combination/standards , Gastric Mucosa/drug effects , Gastric Mucosa/metabolism , Helicobacter Infections/microbiology , Helicobacter pylori/isolation & purification , Helicobacter pylori/physiology , Humans , Metronidazole/pharmacology , Metronidazole/therapeutic use , Peptic Ulcer/drug therapy , Peptic Ulcer/microbiology , Practice Guidelines as Topic , Proton Pump Inhibitors/pharmacology , Proton Pump Inhibitors/therapeutic use , Ranitidine/pharmacology , Ranitidine/therapeutic use
14.
Can J Physiol Pharmacol ; 95(4): 396-403, 2017 Apr.
Article in English | MEDLINE | ID: mdl-28092180

ABSTRACT

This study investigated the gastroprotective effects of N-acetylcysteine (NAC) against indomethacin-induced gastric ulcer in rats. Ulceration was induced by a single oral administration of indomethacin (30 mg/kg). 50 male albino rats were allocated into 5 equal groups: control group received normal saline orally, indomethacin group rats received normal saline orally for 5 days and indomethacin (50 mg/kg) on the last day, ranitidine group received ranitidine (reference drug) orally for 5 days (50 mg/kg) before receiving indomethacin (50 mg/kg) on the last day, and NAC groups received NAC orally at 300 and 500 mg/kg, respectively, for 5 days before receiving indomethacin (50 mg/kg) on the last day. Gastric tissue interleukin-1ß (IL-1ß), interferon-γ (IFN-γ), and caspase-3 levels were immunoassayed. Total thiol (T-SH), myeloperoxidase (MPO), and glucose-6-phosphate dehydrogenase (G6PD) were determined by spectrophotometry. Cytokine-induced neutrophil chemoattractant 2α (CINC-2α) gene expression was evaluated in addition to Bcl-2 immunohistochemistry. Pretreatment with NAC improved the inflammatory, apoptotic, and redox status in a dose-dependent manner particularly in NAC 500 mg/kg pretreated group. These results show a role for NAC in improving indomethacin-induced gastric ulceration via antioxidative, antiapoptotic, and anti-inflammatory interactive mechanisms.


Subject(s)
Acetylcysteine/therapeutic use , Antioxidants/therapeutic use , Apoptosis/drug effects , Oxidation-Reduction/drug effects , Stomach Ulcer/prevention & control , Acetylcysteine/pharmacology , Animals , Anti-Inflammatory Agents, Non-Steroidal/adverse effects , Anti-Inflammatory Agents, Non-Steroidal/therapeutic use , Anti-Ulcer Agents/adverse effects , Anti-Ulcer Agents/therapeutic use , Caspase 3/metabolism , Chemical and Drug Induced Liver Injury/etiology , Chemokines, CXC/metabolism , Cytoprotection , Disease Models, Animal , Dose-Response Relationship, Drug , Gastric Mucosa/drug effects , Gastric Mucosa/metabolism , Gastric Mucosa/pathology , Glucosephosphate Dehydrogenase/metabolism , Humans , Indomethacin/adverse effects , Interferon-gamma/metabolism , Interleukin-1beta/metabolism , Male , Pain/drug therapy , Peroxidase/metabolism , Proto-Oncogene Proteins c-bcl-2/metabolism , Ranitidine/adverse effects , Ranitidine/therapeutic use , Rats , Rats, Wistar , Stomach Ulcer/chemically induced
15.
Digestion ; 93(2): 167-73, 2016.
Article in English | MEDLINE | ID: mdl-26849820

ABSTRACT

BACKGROUND: Since resistance of Helicobacter pylori is developing very fast all over the world, new treatment regimens for eradication are urgently needed. AIM: To compare eradication success rate of H. pylori treatment regimens with and without doxycycline. METHODS: English medical literature searches were conducted for regimens including doxycycline for eradication of H. pylori. Searches were performed up to August 31, 2015, using MEDLINE, PubMed, EMBASE, Scopus and CENTRAL. Meta-analysis was performed by using comprehensive meta-analysis software. Pooled ORs and 95% CIs were calculated comparing treatment regimens for eradication of H. pylori infection with and without doxycycline. RESULTS: The OR for eradication success rate in a fixed model was in favor for treatment regimens with doxycycline: 1.292, 95% CI 1.048-1.594, p = 0.016. There was no significant heterogeneity in the included studies: Q = 15.130, d.f. (Q) = 8, I2 = 47.126, p > 0.10. When treatment regimens with doxycycline were compared only with treatment regimens with tetracycline, no significant difference was found in eradication success rate: OR 0.95, 95% CI 0.68-1.32, p = 0.77. But when treatment regimens with doxycycline were compared with treatment regimens without tetracycline, the OR in favor of doxycycline was even higher: OR 1.59, 95% CI 1.21-2.09, p < 0.001. CONCLUSION: In this meta-analysis, we confirmed doxycycline efficiency in the eradication of H. pylori. Thus, triple, quadruple or even high dose dual therapy with regimens containing doxycycline should be considered.


Subject(s)
Antacids/therapeutic use , Anti-Bacterial Agents/therapeutic use , Doxycycline/therapeutic use , Helicobacter Infections/drug therapy , Histamine H2 Antagonists/therapeutic use , Proton Pump Inhibitors/therapeutic use , Amoxicillin/therapeutic use , Clarithromycin/therapeutic use , Drug Therapy, Combination , Esomeprazole/therapeutic use , Helicobacter pylori , Humans , Lansoprazole/therapeutic use , Metronidazole/therapeutic use , Ranitidine/therapeutic use , Tetracycline/therapeutic use
16.
BMC Pregnancy Childbirth ; 16: 272, 2016 09 20.
Article in English | MEDLINE | ID: mdl-27644958

ABSTRACT

BACKGROUND: Drugs used during pregnancy can adversely affect the health and life of the mother and unborn child. However, the fact that drugs are needed to mitigate complications during pregnancy cannot be avoided. The present study was designed to identify the common complications during pregnancy and assess the medications that have been used to mitigate those complications in an attempt to improve drug prescribing during pregnancy. METHODS: A hospital based cross sectional study was conducted at Manipal Teaching Hospital, Nepal in 275 pregnant women presenting with at least one complication and the drugs prescribed for the management of those complications were analyzed. RESULTS: Majority of the patients in this study were in the age group 20-24 (44 %) and in the third trimester (53.8 %). Maximum patients complained pain (back, abdominal, lower abdominal, neck, pelvic) as primary complication (24.3 %) which was followed by nausea/vomiting, upper respiratory tract complications, acid reflux disease and others. Of the total prescriptions eighty six (86) did not have any medicines prescribed to the patients except multivitamins and nutritional supplements. The average drugs prescribed per patient was 2.78 in outpatient setting and 5.41 in in-patients. Ranitidine, hyoscine butylbromide, paracetamol were the most frequently prescribed medications. Antimicrobials comprised 12.8 % of total drugs prescribed and 18 % of total drugs were fixed dose combinations. Two hundred and thirty four (234) prescriptions out of 275 were prescribed by brand names. Most of the prescribed drugs were from FDA pregnancy category B and C. CONCLUSION: The present finding showed that pregnant patients were prescribed medications almost only when necessary and those considered safe during pregnancy were chosen to a large extent. However, few teratogenic drugs (2.49 % of total drugs prescribed) were also found to be prescribed which might need further assessments.


Subject(s)
Drug Prescriptions/statistics & numerical data , Practice Patterns, Physicians'/statistics & numerical data , Pregnancy Complications/drug therapy , Acetaminophen/therapeutic use , Adult , Anti-Infective Agents/therapeutic use , Butylscopolammonium Bromide/therapeutic use , Cross-Sectional Studies , Female , Hospitals, Teaching , Humans , Nepal , Pregnancy , Ranitidine/therapeutic use
17.
BMC Pediatr ; 16: 90, 2016 07 13.
Article in English | MEDLINE | ID: mdl-27412521

ABSTRACT

BACKGROUND: The aim of this study was to determine the effect of gestational age on pharmacokinetics of ranitidine in newborns with gastroesophageal reflux. METHODS: A prospective, descriptive and pharmacokinetic study was carried out in 30 pre-term and 20 full-term babies. 3 mg/kg of ranitidine was administered intravenously to all the babies and at 0.25, 0.5, 1, 2, 4, and 8 h following the administration, samples of blood were drawn to assess ranitidine levels using high performance liquid chromatographic technique. RESULTS: Pharmacokinetics of ranitidine had a bi-exponential behavior with a half-life elimination of (t1/2el) 2.79 h, area under curve (AUC) of 1688 ng/mL, volume of distribution (Vd) of 1.44 L/kg, and clearance (Cl) of 5.9 L/kg/h. The median plasmatic concentration in pre-terms was 1113 ng/mL and 280 ng/mL in full-terms. Vd, t1/2 and Cl presented high values in preterm although the correlation of Cl with glomerular filtration in term newborns was better. CONCLUSIONS: Plasma levels of ranitidine depend on the gestational age of the newborns. However, the possible relationship between after-birth age and pharmacokinetics of the neonates as their internal organs get matured without minding their gestational background.


Subject(s)
Anti-Ulcer Agents/pharmacokinetics , Gastroesophageal Reflux/drug therapy , Infant, Premature, Diseases/drug therapy , Ranitidine/pharmacokinetics , Anti-Ulcer Agents/blood , Anti-Ulcer Agents/therapeutic use , Area Under Curve , Chromatography, High Pressure Liquid , Female , Gastroesophageal Reflux/blood , Gestational Age , Half-Life , Humans , Infant, Newborn , Infant, Premature , Infant, Premature, Diseases/blood , Injections, Intravenous , Male , Prospective Studies , Ranitidine/blood , Ranitidine/therapeutic use
18.
Mediators Inflamm ; 2016: 1903849, 2016.
Article in English | MEDLINE | ID: mdl-27057092

ABSTRACT

Anthraquinone compounds are one of the abundant polyphenols found in fruits, vegetables, and herbs. However, the in vivo anti-inflammatory activity and molecular mechanisms of anthraquinones have not been fully elucidated. We investigated the activity of anthraquinones using acute inflammatory and nociceptive experimental conditions. Anthraquinone-2-carboxylic acid (9,10-dihydro-9,10-dioxo-2-anthracenecarboxylic acid, AQCA), one of the major anthraquinones identified from Brazilian taheebo, ameliorated various inflammatory and algesic symptoms in EtOH/HCl- and acetylsalicylic acid- (ASA-) induced gastritis, arachidonic acid-induced edema, and acetic acid-induced abdominal writhing without displaying toxic profiles in body and organ weight, gastric irritation, or serum parameters. In addition, AQCA suppressed the expression of inflammatory genes such as cyclooxygenase- (COX-) 2 in stomach tissues and lipopolysaccharide- (LPS-) treated RAW264.7 cells. According to reporter gene assay and immunoblotting analyses, AQCA inhibited activation of the nuclear factor- (NF-) κB and activator protein- (AP-) 1 pathways by suppression of upstream signaling involving interleukin-1 receptor-associated kinase 4 (IRAK1), p38, Src, and spleen tyrosine kinase (Syk). Our data strongly suggest that anthraquinones such as AQCA act as potent anti-inflammatory and antinociceptive components in vivo, thus contributing to the immune regulatory role of fruits and herbs.


Subject(s)
Analgesics/therapeutic use , Anthraquinones/therapeutic use , Anti-Inflammatory Agents/therapeutic use , Acetic Acid/pharmacology , Analgesics/administration & dosage , Animals , Anthraquinones/administration & dosage , Anti-Inflammatory Agents/administration & dosage , Arachidonic Acid/pharmacology , Cyclooxygenase 2/metabolism , Edema/chemically induced , Edema/drug therapy , Lipopolysaccharides/pharmacology , Male , Mice , Mice, Inbred ICR , NF-kappa B/metabolism , Plant Extracts/chemistry , RAW 264.7 Cells , Ranitidine/administration & dosage , Ranitidine/therapeutic use , Signal Transduction/drug effects
19.
Pediatr Emerg Care ; 32(8): 529-31, 2016 Aug.
Article in English | MEDLINE | ID: mdl-27490726

ABSTRACT

Children often require transfer to pediatric hospital emergency departments (EDs) after evaluation in community hospital EDs. Such transfers are regulated by the federal Emergency Medical Treatment and Labor Act. Unusual circumstances, such as logistical errors in the physical transfer of the patient, may increase Emergency Medical Treatment and Labor Act-related liability risks for hospitals and ED physicians.


Subject(s)
Anti-Allergic Agents/administration & dosage , Hypersensitivity/diagnosis , Liability, Legal , Patient Transfer/legislation & jurisprudence , Anti-Allergic Agents/therapeutic use , Child, Preschool , Diphenhydramine/administration & dosage , Diphenhydramine/therapeutic use , Emergency Service, Hospital/organization & administration , Epinephrine/administration & dosage , Epinephrine/therapeutic use , Humans , Hypersensitivity/drug therapy , Male , Methylprednisolone/administration & dosage , Methylprednisolone/therapeutic use , Patient Transfer/ethics , Ranitidine/administration & dosage , Ranitidine/therapeutic use , Treatment Outcome
20.
Bol Asoc Med P R ; 107(3): 24-7, 2015.
Article in English | MEDLINE | ID: mdl-26742192

ABSTRACT

Foreign body aspiration can be a life-threatening emergency. An aspirated solid or semi-solid object may lodge in the larynx, trachea or other breathing airways. If the object is large enough to cause nearly complete obstruction of the airway, asphyxia may rapidly cause death. We report a 19-year old man admitted with right lower lobe pneumonia who spontaneously expelled a foreign body, one day after admission and glucocorticoids administration. Glucocorticoids should be considered in foreign body aspiration management because improvement of the inflammatory reaction may facilitate expontaneous expulsion or foreign body extraction


Subject(s)
Anti-Inflammatory Agents/therapeutic use , Foreign Bodies/drug therapy , Methylprednisolone/therapeutic use , Pneumonia, Aspiration/drug therapy , Acetaminophen/administration & dosage , Acetaminophen/therapeutic use , Analgesics/therapeutic use , Anti-Bacterial Agents/therapeutic use , Anti-Inflammatory Agents/administration & dosage , Azithromycin/administration & dosage , Azithromycin/therapeutic use , Bronchodilator Agents/administration & dosage , Bronchodilator Agents/therapeutic use , Ceftriaxone/administration & dosage , Ceftriaxone/therapeutic use , Cough/etiology , Drug Therapy, Combination , Dyspnea/etiology , Fluoroquinolones/administration & dosage , Fluoroquinolones/therapeutic use , Foreign Bodies/diagnostic imaging , Humans , Levalbuterol/administration & dosage , Levalbuterol/therapeutic use , Male , Methylprednisolone/administration & dosage , Moxifloxacin , Play and Playthings , Pneumonia, Aspiration/etiology , Ranitidine/administration & dosage , Ranitidine/therapeutic use , Tomography, X-Ray Computed , Young Adult
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