[Community health problems with drinking water dams. Drinking water dam groundwork system in Ostharz].
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Germany, East↗
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The effect of neuroleptic drugs on drinking induced by central administration of angiotensin or carbachol.
The effect of a series of neuroleptic drugs on the drinking response elicited by intracerebroventricular injection of either angiotensin or carbachol into conscious rats was studied. The i.p. injection of haloperidol, cis-flupenthixol, or fluphenazine antagonized both angiotensin-induced and carbachol-induced drinking. When injected into the lateral ventricles, the neuroleptics haloperidol, fluphenazine, cis-fluphenthixol and sulpiride were potent inhibitors of angiotensin-induced drinking, but had little effect on the dipsogenic action of carbachol. Clozapine, administered centrally, antagonized drinking caused by both angiotensin and carbachol. Pimozide and chlorpromazine were also potent inhibitors of angiotensin-induced drinking, while trans-flupenthixol was inactive. Our results support the concept of an involvement of dopamine in angiotensin-induced drinking.
Angiotensin II↗
Water intake, switching between bites and sips, and drinking behavior are associated with food intake across meals varying in spiciness: A secondary analysis of two randomized crossover studies.
Widespread nutrition advice instructs consumers to drink water with meals to increase fullness and reduce energy intake. However, recent data indicates greater water intake is associated with more food intake at a meal, not less. Switching between meal components (e.g., alternating between food and water), has also been associated with increased food intake at a pasta meal, but it remains unclear whether this applies to other foods. In a secondary analysis, we pooled existing data from 2 crossover experiments (total n = 86) where adults ate an ad libitum lunch consisting of 650 g of beef chili (n = 52) or chicken tikka masala (n = 34) with 450 g of water twice in the laboratory while being video-recorded. For both experiments, the spiciness of the lunch was varied by adding different ratios of hot:sweet paprika. Videos were coded to measure sip number, sip size (g/sip), drinking rate (g/min), and number of switches between bites of food and sips of water. As we previously reported, increasing spiciness slowed eating rate and reduced food intake; in secondary analyses described here, the reduction in food intake was not moderated by water intake, switching, or drinking behaviors (all p > 0.73). Notably, across all meals, greater water intake (p < 0.001) and switching (p = 0.02) associated with greater food intake. Overall, individuals ate more when they drank more and switched between bites and sips more often, highlighting the potential influence of water and drinking behaviors on food consumption. This finding challenges the widespread dietary advice to drink water with meals to reduce food intake.
Humans↗
Post-exercise rehydration: a randomized cross-over trial comparing a 100% fruit juice, a glucose-based sports drink, and water.
BACKGROUND: Previous studies indicate that sports drinks may improve rehydration, compared to water, an effect likely achieved by manufacturing sports drinks to contain carbohydrates and sodium. However, there is a growing preference for natural products and a "food first" approach to sports nutrition. Fruit juices naturally contain similar concentrations of carbohydrates to sports drinks, but fruit juices may produce a more stable blood glucose profile. Fruit juices also naturally contain electrolytes, particularly potassium, but their potential as effective rehydration alternatives to sports drinks, which have higher sodium concentrations, is not well understood. This study compared the rehydration efficacy and glucose responses following consumption of a 100% fruit juice (Raw Hydrate®; FRU), a glucose-based sports drink (SPO), and water (WAT) after exercise-induced hypohydration. Importantly, rehydration beverages were matched for water volume, rather than total volume, to ensure that any potential differences in water balance were not due to unequal water volumes between trials, a limitation affecting previous rehydration research. METHODS: After familiarization, 17 adults (age: 28 ± 8  years; BMI: 23.8 ± 2.9 kg/m2) completed three trials in a randomized cross-over design. The participants cycled in the heat (~35°C) to induce ~2% body mass loss (BML), then rehydrated over a 1 h period in a laboratory (~21°C) with a water volume equivalent to 150% of BML from either FRU, SPO, or WAT. This was followed by an additional 4 h of seated rest (5 h rehydration period), when blood glucose was measured (0, 0.25, 0.5, 0.75, 1, 1.5, and 2 h after beverage consumption), and all urine produced was collected. RESULTS: During the 5 h rehydration period, there was no effect of trial on total urine volume (FRU: 1266 ± 403 mL, SPO: 1338 ± 361 mL, WAT: 1394 ± 360 mL; P = 0.156) or water retention (FRU: 42 ± 12%, SPO: 37 ± 10%, WAT: 35 ± 11%; P = 0.059). The blood glucose area under the curve differed by trial (P < 0.001), with all beverages significantly different from each other (FRU: 10.12 ± 0.72 mmol/L/2h, SPO: 12.48 ± 1.34 mmol/L/2h, WAT: 7.90 ± 0.47 mmol/L/2h; P < 0.003). CONCLUSION: Rehydration efficacy was similar between all beverages, but each elicited a distinct glycemic response. For sports drink consumers seeking a natural alternative or implementing a "food first" nutritional strategy, switching to a 100% fruit juice will not compromise rehydration effectiveness, but may elicit a lower blood glucose response. Although, it should be noted that an additional three participants were withdrawn from the study because of gastrointestinal issues after consuming the 100% fruit juice. This was likely a product of the present study's design, where a large volume of 100% fruit juice (average ~2,300 mL) was consumed in a short period of time (1 h). Whilst this is a commonly used study design to robustly assess the rehydration efficacy of different beverages, future studies should distribute fluid intake over a longer duration, in order to improve ecological validity and reduce the risk of gastrointestinal issues.
Humans↗
Occurrence of antibiotic-resistant E. coli and antibiotic resistance genes from culturable bacteria in drinking water sources along the Upper Mahaweli River, Sri Lanka.
Antibiotic-resistant Escherichia coli (AR-E. coli) and antibiotic resistance genes (ARGs) in aquatic environments pose a serious threat to public health. However, their presence in river water in South Asian countries is not well established. The present study investigated AR-E. coli and ARGs from culturable bacteria in drinking water sources from 14 drinking water treatment plants situated along the Upper Mahaweli River, a tropical central hill-country river system in Sri Lanka. A total of 167 E. coli isolates were tested against ten antibiotics using the Kirby-Bauer method, and genomic DNA from culturable bacteria in 45 water samples were screened for 11 ARGs using PCR. Overall, 60.48% E. coli isolates exhibited resistance to at least one antibiotic and multidrug resistance was detected in 27.54%. Highest resistance was for amoxicillin (47.31%), tetracycline (26.95%), and co-trimoxazole (24.55%) and four antibiotics showed seasonal variation. ARGs, dominated by blaTEM (80.0%), tetA (66.67%), and tetM and qnrS (62.22%) were detected in 42.42% PCR assays (n = 210). Multiple antibiotic resistance index varied from 0.00 to 0.80, with 44.91% exceeding the 0.2 threshold value, and the antibiotic resistance index varied from 0.00 to 0.32, with eight above the threshold (≥ 0.2). Hierarchical cluster analysis grouped majority of drinking water sources into the intermediate category while few were categorized under low (Kotagala and Thalawakelle-Galkanda) and high (Haragama, Paradeka, and Nawalapitiya), reflecting the variability of anthropogenic interference. Results highlight the risk associated with AR-E. coli and ARGs from culturable bacteria in one of Sri Lanka's key drinking water sources. Proactive interventions ensuring long-term safety of drinking water sources are urgently needed to safeguard public health.
Sri Lanka↗
Views and Experiences of People With Dementia, Informal Caregivers and Professionals on Eating and Drinking Difficulties: A Qualitative Systematic Review.
AIM: This study aims to explore the views and experiences of people with dementia, informal caregivers and professionals regarding eating and drinking difficulties. DESIGN: A qualitative systematic review was conducted. METHODS: The Preferred Reporting Items for Systematic Reviews and Meta-analysis guidelines were used to conduct this systematic review. The quality of the included studies was assessed using the Joanna Briggs Institute Critical Appraisal Checklist for Qualitative Research, and the data were thematically synthesised using Thomas and Harden's three-stage method. DATA SOURCES: Six electronic databases (PubMed, EMBASE, Cochrane Library, Web of Science, CINAHL and PsycINFO) were searched from their respective inception dates to August 2025 to identify relevant studies. RESULTS: Thematic analysis of the 16 included studies identified four key themes: (1) Physiological and psychological changes in people with dementia and caregivers; (2) factors influencing eating and drinking in people with dementia; (3) needs and recommendations for people with dementia, informal caregivers and professionals; (4) selection of eating methods for end-stage people with dementia. CONCLUSIONS: Eating and drinking difficulties affect the well-being of both patients and caregivers. A good dining environment improves mealtime pleasure but demands caregivers' time and energy. All parties emphasised the importance of effective communication. In end-stage dementia, professional assistance is crucial for enteral nutrition decisions. IMPLICATIONS FOR THE PROFESSION AND/OR PATIENT CARE: Collaboration among patients, caregivers and professionals is vital for creating tailored nutritional plans and improving mealtime environments, thereby enhancing nutritional intake. In advanced dementia, providers must provide balanced information on comfort feeding versus enteral nutrition to aid decision-making. IMPACT: What problems were addressed in this study? This study addressed the lack of a consolidated, tri-perspective understanding of eating and drinking difficulties in dementia care settings. What are the main findings? Four key themes were identified: physiological and psychological changes, influencing factors, stakeholder needs and end-of-life decision-making. Where and on whom will the research have an impact? This will impact care practices for people with dementia and inform the training and support of informal caregivers and healthcare professionals.
Humans↗
Viruses in drinking-water. Reconsideration of evidence for postulated health hazard and proposals for virological standards of purity.
Stringent virological standards for drinking-water have been proposed by the World Health Organisation and by others, but there is no evidence of the spread of virus infection by drinking-water that has been adequately treated to conventional bacteriological standards. There is evidence for waterborne transmission of hepatitis and viral gastroenteritis but the case for the introduction of virological standards is critically examined. It is concluded that there is no evidence that drinking-water in the U.K. contributes to the spread of virus infection, and that the introduction of virological standards for drinking-water could not at present be justified. Moreover, in the absence of any information relating the degree of viral contamination to disease, there is no logical basis on which to set the level of a practical virological standard.
Disease Outbreaks↗
Some laboratory correlates of drinking habits.
The effect of drinking habits on the frequency distributions of eight biochemical or haematological test results was studied in 7915 patients attending a multiphasic health testing centre. Increasing incidences of abnormal results with increasing alcohol intake, at levels of alcohol intake habitual for a large proportion of the population, were found for plasma gamma-glutamyl transpeptidase, triglycerides and uric acid, and for erythrocyte mean corpuscular volume. Of four frequently used liver function tests, aspartate aminotransferase, alkaline phosphatase, bilirubin, and albumin, only aspartate aminotransferase was strongly affected by drinking habits. These findings have relevance for the detection of individuals whose drinking habits are harmful to them, and for the interpretation of 'profile' results.
Alcohol Drinking↗
The effects of drinking on offspring: an historical survey of the American and British literature.
Current research on the effects on offspring of drinking during pregnancy has revived interest in an extremely old topic. Observations made during England's Gin Epidemic (1720-1750) were followed by warnings of 19th-century medical writers that parental drinking could damage the fetus. Many concurring studies were reported in the medical literature from 1865 to 1920. Research interest declined during Prohibition, and authorities later discounted the previous work. Recently a relationship between maternal drinking and abnormal morphogenesis has been again described.
Abnormalities, Multiple↗
Inhibition of thermogenic drinking by beta-adrenergic antagonists.
The thirst induced by transfer of rats from air at 5 degrees C to air at 25 degrees C (thermogenic drink) was inhibited by d,1-, but not d-propranolol (6 mg/kg body weight) administered 0.5 h prior to removal from cold. The thermogenic drink was not inhibited by a similar administration of the beta1-adrenergic antagonist, practolol (50 and 150 mg/kg body weight), but was inhibited by the beta2-adrenergic antagonist, butoxamine (35 mg/kg body weight). The results are consistent with the suggestion that beta2-adrenergic receptors play a role in mediation of the thermogenic drink in rats.
Adrenergic beta-Antagonists↗
Prevalence of drugs among drivers arrested for drinking and driving in Finland.
A combined thin layer and gas chromatography system was developed for qualitative and quantitative analysis of drugs in biological samples after extraction with heptane-isoamyl alcohol. Both acidic and basic extraction procedures were used. Special methods were used for the extraction and detection of salicylates, isoniazid, and morphine. Particular attention was given to the detection of psychostimulants; though these drugs have seldom been found in drinking drivers in Finland they are commonly found in Sweden. Two percent of all suspected drinking drivers were also suspected of concommitant drug use, which led to primary sampling of urine. Of 100 such drivers, 24 had blood alcohol levels (BALs) which were negative and 18 of that 24 had drugs in their sample. Seventy-six of the 100 had positive BALs and 25 of the 76 had drugs in their samples. Of the randomly chosen 100 suspected drinking drivers, 5 had drugs in their samples, and 4 of these 5 had positive BALs. The benzodiazeomes were the most commonly detected drugs. No stimulants were found in our subjects.
Adult↗
Draft genome sequences of 20 Legionella pneumophila isolates from 7 drinking water distribution systems across the United States.
Legionella pneumophila is a well-recognized public health concern and can be sporadically detected in treated drinking water. The draft genomes of 20 Legionella pneumophila isolates are presented, which were recovered from 5 chlorinated and 2 chloraminated drinking water distribution systems.
Legionella pneumophila↗
Drinking behavior in laboratory and barroom settings.
Barroom patrons consumed their drinks in significantly less time and with fewer sips than subjects observed in a laboratory. The former most often drank beer while the latter preferred mixed drinks.
Adult↗
[The effects on caries in animal experiments when reducing sugar in cola-drinks(author's transl)].
The effect of stepwise sugar reduction in cola drinks was tested in a programmed animal experiment using Wistar rats. In a parallel study the pH-decrease at different sucrose concentrations was measured in vitro using a plaque model system which involved s. mutans (strain OMZ 176). The reduction of sugar contents by 20%, 33% und 42% results in a lower acid production by s. mutans strain connected with a decrease of the experimental produced caries. For this reason the sugar restriction in cola drinks will be seen as a contribution towards an improvement of dental health.
Animals↗
Integrated metagenomic, culture-based, and whole genome sequencing analyses of antimicrobial resistance in wastewater and drinking water treatment plants in Barcelona, Spain.
The misuse and overuse of antimicrobials drive the emergence of antimicrobial resistance (AMR), a critical global health concern. While wastewater treatment plants (WWTPs) are essential for removing microorganisms and contaminants, they also serve as hotspots for antibiotic-resistant bacteria (ARB) and antimicrobial resistance genes (ARGs), facilitating their persistence and dissemination. This study investigated AMR in two WWTPs and one drinking water treatment plant (DWTP) in the Baix Llobregat area of Barcelona, Spain. Four sampling campaigns were conducted during winter and summer 2023 across different treatment stages. Due to drought conditions, reclaimed water from the Baix Llobregat WWTP was discharged upstream of the DWTP intake to supplement water resources for indirect potable reuse. A total of 991 cultivable ARB were obtained, enabling phenotypic and genotypic characterisation. The most prevalent included Aeromonas spp. (44.3 %), Enterobacterales (27.9 %), Pseudomonas spp. (19.1 %), Acinetobacter spp. (4.8 %), Shewanella spp. (2.2 %), Stenotrophomonas spp. (1 %), and others (0.7 %). Among these, 57.3 % were multidrug-resistant and 2.7 % were extensively drug-resistant. Furthermore, 34.6 % produced extended-spectrum beta-lactamases, 14.1 % harboured carbapenemase genes, and 2.9 % exhibited colistin resistance. Shotgun metagenomic analysis revealed high taxonomic diversity, without dominant genera across treatment stages. The resistome was dominated by ARGs conferring resistance to beta-lactams, aminoglycosides, and macrolides, alongside genes linked to biocide resistance and heavy metal tolerance. Spearman correlation analysis of selected sequenced strains suggested a weak to moderate co-occurrence between ARGs and biocide or heavy metal tolerance genes. These findings underline WWTPs as AMR hotspots and reinforce the need to monitor DWTP source water within the One Health framework.
Wastewater↗
Preferences by deer mice for solutions of sugars, salts, and acids in Richter-type drinking tests.
Deer mice (Peromyscus maniculatus) were tested for taste preferences in 48-hour, Richter-type drinking tests (sapid solution versus distilled water). The Ss, which were seven male and seven female wild adults, were individually housed within an environmental chamber. Test solutions were concentrations of five sugars and three salts (.005 M to 1.0 M) and of two acids (4.0 pH to 1.5 pH). The molar range was too limited to identify the most preferred concentration of glucose, but peak preferences for the other common sugars fell within the range. Preference was shown for hypotonic NaCl concentrations, but other salts and both acids were nonpreferred in all tests. Comparisons were made between these findings and results from Richter-type tests with other murine rodents.
Acids↗
The symbolism of drinking; a culture-historical approach.
The historical symbolic connections between alcoholic beverages and blood, milk and water are discussed, with the conclusion that alcoholic beverages were often symbolically interchangable with these life-giving substances. Many cultures thus saw drinking as a positive and reinforcing part of their societies, rather than solely in a negative or tension-reducing aspect.
Alcohol Drinking↗
[Stability in drinking and surface water of nine virus species from different genera (author's transl)].
The stability of nine viruses, Aujeszky, Sindbis, Vesicular Stomatitis, Newcastle Disease, Vaccinia, FMD, HCC, Reo and Teschen virus in drinking and surface water was investigated comparatively at temperatures of 9 and 15 degrees C as well as the influence of water factors like seasonal difference in temperature, pH value, hardness and sort of water. The results can be summarized as follows: 1. At temperatures of 9 to 15 degrees C the majority of the viruses remained stabil in natural water for an astonishing long time. 2. Starting with virus concentration of about 10(4) infectious units per ml Teschen, Vaccinia, Reo, HCC and ND virus could mostly be demonstrated in water longer than 200 days and FMD, Aujeszky, Vesicular Stomatitis and Sindbis virus for 20 to 50 days on average at 9 degrees C. The stability of the viruses investigated decreased in water in the named turn. 3. Based on these results it can be assumed that under natural conditions with very low virus content of some particles the labile viruses such as Toga, Herpes, Rhabdo and pH labile Picorna remain infectious in water for some days. They should not have any importance as water contaminants. More resistant viruses like Paramyxo may keep infectious for weeks and very stabile viruses such as Entero, Reo, Adeno and Pox viruses several weeks to months. 4. As to factors temperature, pH, hardness and sort of water-within the naturally differing range-only the temperature and only in the case of less resistant viruses showed significant influence on the virus stability in water.
Adenoviruses, Canine↗