Specific Dose Research Articles

Effects of Cobalt-60 Gamma on Microbial Elimination and Phytochemical Constituents in Orthosiphon aristatus (Misai Kucing) (Blume) Miq.

Medicinal plants are used for various purposes, however, the presence of microorganisms in them is the main safety risk. The study aimed to evaluate the effects of gamma irradiation on microbial contaminants and phytochemical constituents of Orthosiphon aristatus (Blume) Miq. The plant was irradiated using doses of 3, 6, 9, and 12 kGy and the microbial contamination was assessed using phenotypic and genotypic analyses. The qualitative screening using chemical tests was performed to identify the presence of important phytochemical constituents including alkaloids, saponins, flavonoids, tannins, steroids and triterpenes. Results showed that the total microbial counts in O. aristatus were significantly reduced (P < 0.05) following irradiations at 3- and 6 kGy. Pathogenic bacteria were not detected in O. aristatus after irradiation at 6 kGy while the phytochemical constituents were conserved. In conclusion, gamma irradiation has significantly reduced and eliminated microbial contaminants and preserved the phytochemical constituents of O. aristatus. This study highlights the use of a low and specific dose, 6 kGy that is effective to reduce and eliminate microbial contaminants in O. aristatus.

Abrocitinib 100mg Once Daily for Moderate-to-Severe Atopic Dermatitis: A Review of Efficacy and Safety, and Expert Opinion on Use in Clinical Practice.

Abrocitinib is a Janus kinase (JAK) 1-selective inhibitor approved for the treatment of moderate-to-severe atopic dermatitis (AD). Although specific dose recommendations for abrocitinib vary across regional product labels, abrocitinib 100mg once daily is recommended as a starting and maintenance dose. This review summarizes the efficacy and safety of abrocitinib 100mg once daily for patients with moderate-to-severe AD based on data from the pivotal phase 3 studies of the JAK1 Atopic Dermatitis Efficacy and Safety (JADE) clinical program, JADE MONO-1 (NCT03349060), JADE MONO-2 (NCT03575871), JADE COMPARE (NCT03720470), JADE TEEN (NCT03796676), and JADE REGIMEN (NCT03627767). Preliminary long-term efficacy and safety data are also summarized from the long-term extension study JADE EXTEND (NCT03422822). Expert opinion on use of abrocitinib 100mg once daily in clinical practice is provided. In addition to efficacy, the decision to use abrocitinib for the treatment of AD should allow for individual patient factors such as age, comorbidities, previous therapy, quality of life, and treatment tolerability, and involve shared decision-making between the patient and clinician.

Doxorubicin Dose-Dependent Impact on Physiological Balance-A Holistic Approach in a Rat Model.

Doxorubicin (DOX) is commonly used in several chemotherapies to treat various cancers, but it is known to cause cardiotoxicity and cardiac symptoms. Autonomic dysfunction is thought to contribute to the cardiotoxic effects of DOX, but the specific dose required to disrupt homeostatic processes is still unclear and is influenced by numerous factors. This study aimed to investigate how the DOX dosage affects autonomic function and physiological parameters, to elucidate the neurocardiac mechanisms underlying the observed cardiovascular side effects. Wistar rats were treated with DOX for four weeks and divided into three dosing groups: DOX8 (2 mg/kg/week), DOX16 (4 mg/kg/week), and DOX20 (5 mg/kg/week). A control group received NaCl 0.9% saline (1 mL/kg/week). In an acute experiment, we recorded blood pressure (BP), electrocardiogram, heart rate (HR), and respiratory rate (RF). Baroreflex gain and chemoreflex sensitivity were calculated, and cardiac tissue was analyzed with picrosirius histochemistry to measure collagen content. Our results showed that the LF/HF ratio, indicative of autonomic activity, was altered along with hypotension and bradycardia at a cumulative DOX dose threshold of 16 mg/kg. We observed a positive correlation between DOX dose and BP, HR, urinary norepinephrine, LF/HF ratio, and fibrotic heart area. Lower LF/HF ratios were associated with high DOX doses, reflecting drug-induced impairment of autonomic control of HR. This study provides valuable insights into the dose-dependent effects of DOX on physiological parameters and the development of cardiovascular dysfunction. These findings are critical, which is important for optimizing the management and therapeutic strategies for patients undergoing DOX-based chemotherapy.

Optimizing Ozone Disinfection in Water Reuse: Controlling Bromate Formation and Enhancing Trace Organic Contaminant Oxidation.

The use of ozone/biofiltration advanced treatment has become more prevalent in recent years, with many utilities seeking an alternative to membrane/RO based treatment for water reuse. Ensuring efficient pathogen reduction while controlling disinfection byproducts and maximizing oxidation of trace organic contaminants remains a major barrier to implementing ozone in reuse applications. Navigating these challenges is imperative in order to allow for the more widespread application of ozonation. Here, we demonstrate the effectiveness of ozone for virus, coliform bacteria, and spore forming bacteria inactivation in unfiltered secondary effluent, all the while controlling the disinfection byproduct bromate. A greater than 6-log reduction of both male specific and somatic coliphages was seen at specific ozone doses as low as 0.75 O3:TOC. This study compared monochloramine and hydrogen peroxide as chemical bromate control measures in high bromide water (Br- = 0.35 ± 0.07 mg/L). On average, monochloramine and hydrogen peroxide resulted in an 80% and 36% decrease of bromate formation, respectively. Neither bromate control method had any appreciable impact on virus or coliform bacteria disinfection by ozone; however, the use of hydrogen peroxide would require a non-Ct disinfection framework. Maintaining ozone residual was shown to be critical for achieving disinfection of more resilient microorganisms, such as spore forming bacteria. While extremely effective at controlling bromate, monochloramine was shown to inhibit TrOC oxidation, whereas hydrogen peroxide enhanced TrOC oxidation.

Quantification of the Relationship of Pyridoxine and Spirometry Measurements in the United States Population

BackgroundThere has been evidence to suggest associations between vitamins and lung function. ObjectiveThis study aimed to examine the association between vitamin B6 and spirometry values. MethodsA cross-sectional study was done using National Health and Nutritional Examination Surveys (NHANES) 2007–2012, which is a nationally representative, modern cohort. Spirometry, a clinical pulmonary function test, measured the amount and speed of air a person could exhale after taking the deepest possible breath after forceful expiratory volume at 1 s (FEV1) and forced vital capacity (FVC). After determination of the relationship of the linearity of variables, univariable and multivariable models were fitted to investigate the effect of vitamin B6 on FEV1 and FVC. The National Center for Health Statistics Ethics Review Board granted permission for the study’s data collection and analysis. ResultsOf 19,160 individuals who had complete information on vitamin B6 intake, FEV1, and FVC, it was found each mg of vitamin B6 intake was associated with increase in 166.41 mL of FEV1 (95% CI: 156.71, 176.12; P < 0.01) and 221.6 mL of FVC (95% CI: 209.62, 233.57; P < 0.01). After controlling for potential confounders (age, race, sex, body mass index, education, and income), multiple linear regression found that each mg of vitamin B6 was associated with increase in 25.98 mL of FEV1 (95% CI: 19.15, 32.80, P < 0.01) and 38.97 mL of FVC (95% CI: 30.65, 47.30, P < 0.01). ConclusionIncreased vitamin B6 intake is associated with improvement in lung function. Further prospective studies are required to ascertain whether increased vitamin B6 can lead to increased long-term spirometry measurements and the specific therapeutic dose–response relationship.

Feeding and Nutritional Factors That Affect Somatic Cell Counts in Milk of Sheep and Goats.

The purpose of this quantitative review is to highlight the effects of feeding strategies using some mineral, vitamin, marine oil, and vegetable essential oil supplements and some agri-food by-products to reduce SCCs in the milk of sheep and goats. According to the results, only specific dietary factors at specific doses could reduce SCCs in the milk of dairy sheep and goats. The combination of Se and vitamin E in the diet was more effective in sheep than in goats, while the inclusion of polyphenols, which are also present in food matrices such as agro-industrial by-products, led to better results. Some essential oils can be conveniently used to modulate SCCs, although they can precipitate an off-flavoring problem. This work shows that SCCs are complex and cannot be determined using a single experimental factor, as intramammary inflammation, which is the main source of SC in milk, can manifest in a subclinical form without clinical signs. However, attention to mineral and vitamin supplementation, even in the most difficult cases, such as those of grazing animals, and the use of anti-inflammatory substances directly or through by-products, can improve the nutritional condition of animals and reduce their SCCs, offering undeniable benefits for the milk-processing sector as well.

Management of Antracnosis with Electrochemically Activated Salt Solutions (EASSs) on Bean Culture.

Common bean (Phaseolus vulgaris L.) is an important crop for food security and for national economics for several countries worldwide. One of the most important factors of risk in common bean production is the fungal disease anthracnose caused by Colletotrichum lindemuthianum, which, in some cases, causes complete yield losses; this kind of plant disease is usually managed through the application of chemical products such as fungicides that are commonly not accepted by society. This rejection is based on the relationship of pesticides with health damage and environmental contamination. In order to help in solving these drawbacks, the present work proposes the use of electrochemically activated salt solutions (EASSs) as a safer pathogen control agent in crops, due to it having shown an elicitor and biostimulant effect on plants. With this background, this manuscript presents in vitro results of the evaluation of the inhibitory effect for multiple bean pathogens and in vivo results of EASS in the common bean-Colletotrichum pathosystem by evaluation of the infection severity and defense activation, such as secondary metabolite production and antioxidant activity. EASS presence in growth media had a strong inhibitory effect at the beginning of experiments for some of the evaluated fungi. EASSs showed an effect against the development of the disease when applied in specific doses to prevent distress in plants.

Post OP Analgesic Effect of Transabdominal Block in Patients Undergoing Elective Ceaserian Section

Background: The management of postoperative pain, especially following abdominal surgeries, remains a pivotal challenge in clinical practice. The utilization of a transabdominal plane (TAP) block has recently emerged as a promising technique in achieving effective postoperative pain control. This study aimed to rigorously evaluate the analgesic efficacy of the TAP block in comparison with a control group not receiving the block, employing standardized Visual Analog Scale (VAS) scores and additional postoperative analgesic requirements as the primary outcome measures. Methods: A total of 50 patients undergoing abdominal surgery were randomly assigned to two groups: TAP block (n=25) and control (n=25). The TAP group received a specific dose of bupivacaine, while the control group received n/saline. Pain intensity was quantitatively assessed using VAS scores at 2, 6, 12, and 24 hours postoperatively. The requirement for additional postoperative analgesics was also recorded and compared between groups. Results: The TAP block group demonstrated consistently and significantly lower VAS scores across all time intervals measured, with mean differences ranging from 1.7 to 2.7 (p&lt;0.001). Additionally, the TAP block group required additional analgesics in only 20% of cases (95% CI: 7-33%), as opposed to 68% in the control group (95% CI: 49-87%), signifying a significant reduction of 48 percentage points (p&lt;0.01, 95% CI of the difference: 28-68%). Conclusion: The research presented here illustrates the heightened effectiveness of the TAP block in managing pain compared to traditional methods for patients having abdominal surgery. The noteworthy decrease in VAS scores, along with the reduced requirement for extra post-surgery pain relief, highlights the TAP block's potential as an efficient method for controlling pain. Continued investigation is recommended to determine the best techniques and identify the specific patient groups that might gain the most from this innovative method, aiming to improve both comfort and recovery following surgery. Keywords: Elective C-section, VAS score, Abdominal surgery, Effectiveness

Dose-Volume Histogram Parameters and Quality of Life in Patients with Prostate Cancer Treated with Surgery and High-Dose Volumetric-Intensity-Modulated Arc Therapy to the Prostate Bed.

Prostate bed radiotherapy (RT) is a major affecter of patients' long-term quality of life (QoL). To ensure the best possible outcome of these patients, dose constraints are key for optimal RT planning and delivery. However, establishing refined dose constraints requires access to patient-level data. Therefore, we aimed to provide such data on the relationship between OAR and gastrointestinal (GI) as well as genitourinary (GU) QoL outcomes of a homogenous patient cohort who received dose-intensified post-operative RT to the prostate bed. Furthermore, we aimed to conduct an exploratory analysis of the resulting data. Patients who were treated with prostate bed RT between 2010 and 2020 were inquired about their QoL based on the Expanded Prostate Cancer Index Composite (EPIC). Those (n = 99) who received volumetric arc therapy (VMAT) of at least 70 Gy to the prostate bed were included. Dose-volume histogram (DVH) parameters were gathered and correlated with the EPIC scores. The median age at the time of prostate bed RT was 68.9 years, and patients were inquired about their QoL in the median 2.3 years after RT. The median pre-RT prostate-specific antigen (PSA) serum level was 0.35 ng/mL. The median duration between surgery and RT was 1.5 years. The median prescribed dose to the prostate bed was 72 Gy. A total of 61.6% received prostate bed RT only. For the bladder, the highest level of statistical correlation (p < 0.01) was seen for V10-20Gy, Dmean and Dmedian with urinary QoL. For bladder wall, the highest level of statistically significant correlation (p < 0.01) was seen for V5-25Gy, Dmean and Dmedian with urinary QoL. Penile bulb V70Gy was statistically significantly correlated with sexual QoL (p < 0.05). A larger rectal volume was significantly correlated with improved bowel QoL (p < 0.05). Sigmoid and urethral DVH parameters as well as the surgical approach were not statistically significantly correlated with QoL. Specific dose constraints for bladder volumes receiving low doses seem desirable for the further optimization of prostate bed RT. This may be particularly relevant in the context of the aspiration of establishing focal RT of prostate cancer and its local recurrences. Our comprehensive dataset may aid future researchers in achieving these goals.

Transdermal Drug Delivery System: An Emphasis on Transdermal Patches

Transdermal drug delivery system was presented to overcome the difficulties of drug delivery especially oral route. A transdermal patch is a medicated adhesive patch that is placed on the skin to deliver a specific dose of medication through the skin and into the bloodstream. It promotes healing to an injured area of the body. An advantage of a transdermal drug delivery route over other types of delivery system such as oral, topical, i.v., i.m., etc. is that the patch provides a controlled release of the medication into the patient, usually through either a porous membrane covering a reservoir of medication or through body heat melting thin layers of medication embedded in the adhesive. The main disadvantage to transdermal delivery systems stems from the fact that the skin is a very effective barrier, as a result, only medications whose molecules are small can easily penetrate the skin, so it can be delivered by this method. This review article describes the overall introduction of transdermal patches including type of transdermal patches, method of preparation of transdermal patches and factor affecting etc.

Recent Advances in the Use of Probiotics to Improve Meat Quality of Small Ruminants: A Review.

Meat from small ruminants is considered a high quality and delicacy product in many countries. Several benefits have been perceived from probiotics as dietary supplements, such as improved carcass weight, color, tenderness, flavor, muscle fiber structure, water-holding capacity, and healthy fatty acid profile of the meat. Thus, the present review focuses on the effect of probiotics on improving the quality of meat from small ruminants. Though many benefits have been associated with the use of probiotics, the findings of all the considered articles are not always consistent, and the mechanisms behind improving meat quality are not appropriately defined. This variability of findings could be due to the use of different probiotic strains, dosage rates, number of days of experiment, nutrition, breed, age, and health status of the animals. Therefore, future research should emphasize specific strains, optimal dose and days of administration, route, and mechanisms for the specific probiotic strains to host. This review provides a comprehensive overview of the use of probiotics for small ruminants and their impact on meat quality.

808-P: Pharmacokinetic Properties of Once-Weekly Insulin Icodec in Individuals with Renal Impairment vs. Normal Renal Function

Insulin icodec is a once-weekly basal insulin in development. This trial investigated if renal impairment affects the pharmacokinetics (PK) of icodec. In an open-label, parallel-group trial, 58 individuals (39 males; mean±SD age 50±13 yrs, BMI 26.5±3.1 kg/m2) were allocated to five groups according to renal function based on measured glomerular filtration rate (GFR): normal renal function (NRF; ≥90 mL/min; N=12), mild (60 to &amp;lt;90 mL/min; N=12), moderate (30 to &amp;lt;60 mL/min; N=12), severe (&amp;lt;30 mL/min; N=12) renal impairment and end‑stage renal disease (N=10). A single s.c. icodec dose (1.5 U/kg) was administered and blood was sampled for PK until 840 h (35 days) post-dose. A minor increase was observed in total exposure (AUC0-840h,SD) with decreasing GFR, but the estimated effect of GFR on AUC0-840h,SD did not differ statistically significantly from zero (-0.069; 95% CI [-0.150;0.013]; p=0.099). Pairwise group comparisons showed numerically slightly higher AUC0-840h,SD and Cmax,SS for renal impairment vs NRF (Figure). AUC0-840h,SD was statistically significantly higher for moderate renal impairment vs NRF. In conclusion, icodec exposure trended to be slightly higher for renal impairment vs NRF. The clinical relevance is however limited as icodec should be dosed according to individual need. Thus, no specific dose adjustment of icodec is required in individuals with renal impairment. Disclosure H.Haahr: Employee; Novo Nordisk, Stock/Shareholder; Novo Nordisk. N.R.Kristensen: Employee; Novo Nordisk A/S, Stock/Shareholder; Novo Nordisk A/S. J.H.Larsen: Employee; Novo Nordisk, Stock/Shareholder; Novo Nordisk. F.H.Wagner: None. S.Ignatenko: None. Funding Novo Nordisk

809-P: The Effect of Various Degrees of Hepatic Impairment on the Pharmacokinetic Characteristics of Once-Weekly Insulin Icodec

Insulin icodec is a novel basal insulin being developed for once-weekly administration. This study investigated if the pharmacokinetic characteristics of icodec are affected by hepatic impairment. In an open-label, parallel-group trial, 25 individuals (13 females/12 males; mean±SD age 54±9 yrs, BMI 28.3±5.2 kg/m2) were allocated to four groups based on hepatic function: normal hepatic function (n=6), mild (Child-Pugh Classification grade A; n=6), moderate (Child-Pugh grade B; n=6), and severe (Child-Pugh grade C; n=7) hepatic impairment. Icodec was administered as a single s.c. dose (1.5 U/kg) followed by blood sampling for pharmacokinetics until 840 h (35 days) post-dose. Total exposure of icodec (AUC0-∞,SD) was greater for mild (by 13%) and moderate (by 15%) hepatic impairment vs normal hepatic function, while no difference was observed for severe hepatic impairment vs normal hepatic function (Figure). Maximum concentration of icodec was not affected by hepatic impairment after a single dose (Cmax,SD) or at simulated steady state (Cmax,SS). In conclusion, the slightly greater total exposure of icodec for mild and moderate hepatic impairment vs normal hepatic function is considered of limited clinical relevance as icodec should be dosed according to individual need. No specific dose adjustment of icodec is required in individuals with hepatic impairment. Disclosure H.Haahr: Employee; Novo Nordisk, Stock/Shareholder; Novo Nordisk. B.Cieslarova: None. A.M.Donatsky: Employee; Novo Nordisk. J.R.Joseph: None. N.R.Kristensen: Employee; Novo Nordisk A/S, Stock/Shareholder; Novo Nordisk A/S. V.Kupcová: None. J.R.Hingst: Employee; Novo Nordisk, Research Support; Pfizer Inc. Funding Novo Nordisk

Comparison of effectiveness and safety of sodium polystyrene sulfonate and sodium zirconium cyclosilicate for treatment of hyperkalemia in hospitalized patients.

Potassium binders are frequently utilized for the treatment of hyperkalemia in hospitalized patients; however, there is limited data directly comparing individual agents. The purpose of this study was to compare the effectiveness and safety of sodium polystyrene sulfonate (SPS) and sodium zirconium cyclosilicate (SZC) for hyperkalemia treatment in hospitalized patients. This retrospective cohort study evaluated adult patients who were admitted within a 7-hospital health system and received SPS or SZC for a serum potassium level greater than 5.0 mEq/L. Patients receiving dialysis prior to SPS/SZC administration, those receiving other potassium-lowering medications within 6 hours prior to blood sampling for a repeat potassium level, and those started on kidney replacement therapy prior to sampling for a repeat potassium level were excluded. Following evaluation of 3,903 patients, the mean reduction in serum potassium 4 to 24 hours after binder administration was 0.96 mEq/L with SPS and 0.78 mEq/L with SZC (P < 0.0001). The median dose of SPS was 30 g (interquartile range [IQR], 15-30 g) while the median (IQR) dose of SZC was 10 g (10-10 g). Resolution of hyperkalemia within 24 hours was achieved in a higher percentage of patients with use of SPS (74.9%) versus SZC (68.8%) (P < 0.001). One of the largest comparisons of SPS and SZC conducted to date, this study demonstrated the effectiveness and safety of both agents. While a statistically greater reduction in serum potassium was observed with use of SPS, there was significant dosing variability among agents that limited the ability to directly compare specific doses. Further investigation is needed to determine the optimal dose of each agent for acute hyperkalemia management. This data will inform clinical decisions about the choice of potassium binder for acute hyperkalemia.

Comparison of the Therapeutic Effect of Sinapic Acid in Drug-Resistant and Non-Resistant Hepatocellular Carcinoma Cells

Sinapic acid (SA) has been shown to have anti-bacterial, anti-cancer, anti-inflammatory, cardioprotective, hepatoprotective, and neuroprotective effects in pre-clinical and in vitro investigations. Especially in cancer studies, it has been shown that SA has an anti-cancer effect. SA reduced proliferation and induced apoptosis in cancer cells. In this study, the effect of SA on drug resistance in hepatocellular carcinoma was investigated. For this purpose, cells resistant to sorafenib were obtained. According to the gene expression analysis performed in resistant cells, the expression of MDR1, hCE-1 and hCE-2 increased significantly. Then, specific doses of sinapic acid were applied to both Hep3B and resistant Hep3B cell lines. The IC50 dose for Hep3B cells was determined by XTT analysis. The cytotoxic effect of SA was different in resistant and non-resistant cells. The IC50 dose of SA was increased in resistant cells compared to Hep3B cells. The chemotherapeutic applications of herbal chemicals have been widely studied. However, drug resistance against frequently used chemotherapeutics is the biggest obstacle to treatment. This study showed that the dose of SA applied to resistant cells should be increased. This suggests that when the resistance mechanism occurs, the herbal chemicals are also effused out of the cell like drugs. It is necessary to study the intracellular interactions of SA with further studies.

Phytochemical Composition and Anti-Motility Effects of Napoleonae imperialis Methanol Crude Leaf Extract and Fractions in Rats

Background: Extracts from that Napoleonae imperialis leaves have traditionally been used to treat wounds and diarrhoea in south east Nigeria.&#x0D; Aim: The present study was carried out to evaluate following scientific principles, the phytochemical composition and anti-motility effect of leaf extract and fractions prepared from the plants in experimental rats.&#x0D; Methods: Crude extract was prepared from the plant’s leaves and was subjected to phytochemical and acute toxicity tests. Thereafter, the extract was fractionated using column and thin layer chromatographic techniques. Anti-motility effect of the crude extract and fractions was evaluated using 80 rats assigned to 16 groups of 5 rats each. While group 1 served as control and group 2 was treated with Loperamide (0.5 mg/kg), groups 3-16 were treated with specific dose levels of the crude extract or fraction before charcoal meal 30 minutes after treatments. The animals were sacrificed in a further 30 minutes to assess the extents of movement of the charcoal meal along the gastrointestinal tract.&#x0D; Results: Alkaloids (31.09 +0.44 mg/100 g) were the most abundant phytochemical identified in the crude extract and was followed by flavonoids (17.19± 0.90 mg/100 g). Others were saponins (9.61±0.12 mg/100 g), tannins, (3.23±0.06 mg/100 g), phenolics (8.83±0.41 mg/100 g), steroids (5.24±0.10 mg/100 g), terpenoids (2.58±0.11 mg/100 g) and cardiac glycosides (4.95±0.08 mg/100 g). Results of acute toxicity (LD50) test showed no mortality nor obvious signs of toxicity, even at an oral dose of 5000 mg/kg in rats. Results of the anti-motility studies showed that Napoleonae imperialis crude extract and fractions significantly inhibited charcoal meal transit in rat’s gastrointestinal tract with 500 mg/kg of the extract producing an inhibitory effect of 51.44±3.53%. A repeat of the test on chromatographic fractions of the extract showed that fraction 5 had the highest anti-motility effect having produced an inhibitory effect of 87.70±6.04% on intestinal motility.&#x0D; Conclusion: Our findings have shown that Napoleonae imperialis leaves contain pharmacologically active components with antidiarrhoeal activities and may be the reason for its antidiarrheoal application in traditional medicine. The observed effects of the extract may be due to its flavonoids and tannins contents and may be via the anticholinergic and osmotic pathway. Solvent combination for fraction 5 may be the most ideal for higher anti-motility effects. More work is required to further establish these findings.

Removal of micropollutants and ecotoxicity during combined biological activated carbon and ozone (BO3) treatment

Ozonation is a viable option to improve the removal of micropollutants (MPs) in wastewater treatment plants (WWTPs). Nevertheless, the application of ozonation is hindered by its high energy requirements and by the uncertainties regarding the formation of toxic transformation products in the process. Energy requirements of ozonation can be reduced with a pre-ozone treatment, such as a biological activated carbon (BAC) filter, that removes part of the effluent organic matter before ozonation. This study investigated a combination of BAC filtration followed by ozonation (the BO3 process) to remove MPs at low ozone doses and low energy input, and focused on the formation of toxic organic and inorganic products during ozonation. Effluent from a WWTP was collected, spiked with MPs (approximately 1 µg/L) and treated with the BO3 process. Different flowrates (0.25–4 L/h) and specific ozone doses (0.2–0.6 g O3/g TOC) were tested and MPs, ecotoxicity and bromate were analyzed. For ecotoxicity assessment, three in vivo (daphnia, algae and bacteria) and six in vitro CALUX assays (Era, GR, PAH, P53, PR, andNrf2 CALUX) were used.Results show that the combination of BAC filtration and ozonation has higher MP removal and higher ecotoxicity removal than only BAC filtration and only ozonation. The in vivo assays show a low ecotoxicity in the initial WWTP effluent samples and no clear trend with increasing ozone doses, while most of the in vitro assays show a decrease in ecotoxicity with increasing ozone dose. This suggests that for the tested bioassays, feed water and ozone doses, the overall ecotoxicity of the formed transformation products during ozonation was lower than the overall ecotoxicity of the parent compounds. In the experiments with bromide spiking, relevant formation of bromate was observed above specific ozone doses of approximately 0.4 O3/g TOC and more bromate was formed for the samples with BAC pre-treatment. This indirectly indicates the effectivity of the pre-treatment in removing organic matter and making ozone more available to react with other compounds (such as MPs, but also bromide), but also underlines the importance of controlling the ozone dose to be below the threshold to avoid formation of bromate. It was concluded that treatment of the tested WWTP effluent in the BO3 process at a specific ozone dose of 0.2 g O3/g TOC, results in high MP removal at limited energy input while no increase in ecotoxicity, nor formation of bromate was observed under this condition. This indicates that the hybrid BO3 process can be implemented to remove MPs and improve the ecological quality of this WWTP effluent with a lower energy demand than conventional MP removal processes such as standalone ozonation.

Erratum: Generation of a Mouse Spontaneous Autoimmune Thyroiditis Model.

An erratum was issued for:Generation of a Mouse Spontaneous Autoimmune Thyroiditis Model. The Protocol section was updated. Step 3.1.1 of the Protocol was updated from: After the induction, anesthetize the mice with a volume of 0.01 mL/g anesthetic by intraperitoneal injection. Prepare the anesthetic by mixing midazolam (40 µg/100 µL for sedation), medetomidine (7.5 µg/100 µL for sedation), and butorphanol tartrate (50 µg/100 µL for analgesia) in phosphate-buffered saline (PBS). to After the induction, anesthetize the mice with a volume of 0.01 mL/g anesthetic by intraperitoneal injection. Prepare the anesthetic by mixing midazolam (40 µg/100 µL for sedation), medetomidine (7.5 µg/100 µL for sedation), and butorphanol tartrate (50 µg/100 µL for analgesia) in phosphate-buffered saline (PBS). NOTE: The specific concentrations of each component in the anesthesia mixture are: midazolam 13.33µg/100µL, medetomidine 2.5µg/100µL, and butorphanol 16.7µg/100µL. For specific dosages used in mice, the doses are: midazolam 4µg/g, medetomidine 0.75µg/g, and butorphanol 1.67µg/g.Anesthesia depth was confirmed when the mouse's limb muscles relaxed, the whiskers had no touch response, and there was loss of pedal reflex. Step 3.1.2 of the Protocol was updated from: After the mice are anesthetized, cut off their whiskers with ophthalmic scissors to prevent blood from flowing down the whiskers and causing hemolysis. Fix the mouse with one hand and press the skin of the eye to make the eyeball protrude. Quickly remove the eyeball and draw 1 mL of blood into the microcentrifuge tube via a capillary tube. to After the mice are anesthetized, prepare the peripheral blood samples, by fixing the mouse with one hand and pressing the eye skin to protrude the eyeball. Then, insert the capillary tube into the inner corner of the eye and penetrate at a 30-45 degree angle to the plane of the nostril. Apply pressure while gently rotating the capillary tube. Blood will flow into the tube via capillary action. Step 3.2.1 of the Protocol was updated from: Dissect the chest wall to expose the heart, cut open the right atrium, and infuse saline into the left ventricle by an intravenous infusion needle attached to a 20 mL syringe until the tissue turns white. to Humanely euthanize the animal according to the institutional policies. Then, dissect the chest wall to expose the heart, cut open the right atrium, and infuse saline into the left ventricle by an intravenous infusion needle attached to a 20 mL syringe until the tissue turns white.

Solvothermal-based synthesis of barium stannate nanosheets coupled with copper manganate nanoparticles for efficient photooxidation of tetracycline under visible light

Photocatalytic oxidation of antibiotic waste over semiconducting heterojunction photocatalysts is considered eco-friendly because it is simple and operates under light irradiation. In this work, we apply a solvothermal-based process for obtaining high surface area barium stannate (BaSnO3) nanosheets followed by adding 3.0–12.0 wt% of spinel copper manganate (CuMn2O4) nanoparticles to form n-n CuMn2O4/BaSnO3 heterojunction photocatalyst after calcination process. The CuMn2O4-supported BaSnO3 nanosheets exhibit mesostructure surfaces with a high surface area range of 133–150 m2g−1. Moreover, introducing CuMn2O4 to BaSnO3 shows a significant broadening in visible light absorption range due to bandgap reduction down to 2.78 eV in 9.0% CuMn2O4/BaSnO3 compared to 3.0 eV for pure BaSnO3. The produced CuMn2O4/BaSnO3 is used for photooxidation of tetracycline (TC) in water as emerging antibiotic waste under visible light. The photooxidation of TC exhibits the first-order reaction model. The specific dose of 9.0 wt% CuMn2O4/BaSnO3 at 2.4 gL−1 displays the highest-performed and recyclable photocatalyst for total oxidation of TC after 90 min. This sustainable photoactivity is attributed to the improved light harvesting and charges migration upon coupling between CuMn2O4 and BaSnO3.

UJI AKTIVITAS ANTIDEPRESAN ISOMIRISTISIN TERHADAP IMMOBILITY TIME MENCIT PUTIH JANTAN (MUS MUSCULUS)

Isomyristicin results from myristicin isomerization and is reported to have the same biological activity as myristicin, an antidepressant. Myristicin at a specific dose causes toxicity, so it is necessary to study isomyristicin, which is estimated to have the same biological activity as myristicin. However, there has been no test related to isomyristicin having antidepressant activity. Therefore, this study aimed to determine the antidepressant activity and the optimum dose of isomyristicin to decrease the immobility time of male white mice (Mus musculus). This study used 30 male white mice divided into six groups: positive control, negative control, normal control, and isomyristicin dose 1.5 mg/Kg BW, 3 mg/Kg BW, and 6 mg/Kg BW mice. The method to measure the immobility time of male white mice is the Forced Swimming Test (FST) and Tail Suspension Test (TST) to induce depression. To analyze the normality data using a Shapiro Wilk and a one-way ANOVA to analyze the significant difference in the data. The result showed all doses of isomyristicin have the ability to antidepressant, and the optimal dose was 1,5 mg/kg BW mice with 82 % as the decrease percentage and proved by post hoc with sig. p (&lt;0,05).