P1 Group Research Articles

Potency of Red Guava Fruitghurt as an Antioxidant

Antioxidants are compounds needed by the body to protect body cells from damage caused by free radicals. Free radicals can damage macromolecules such as cell membrane lipids, DNA, and proteins, and cause cell oxidative stress. Red Guava Fruitghurt is a probiotic with the basic ingredients of fruit. The purpose of this study is to determine the effect of fruitghurt on the MDA levels in the blood of mice induced by CCl4. This was an experimental study conducted using mice (Mus musculus) which were divided into three treatment groups – the negative control group (that were not induced and were not given fruitghurt), the positive control group (that were induced with CCl4 but not given fruitghurt), and the treatment group (that were induced with CCl4 and given fruitghurt). The data obtained in the study were analyzed using the one-way ANOVA test, and the results showed significant differences between the treatment groups. Giving fruitghurt to the P1 group had a significant effect on reducing malondialdehyde levels compared to the positive control group, with a P-value of 0.03. Lactobacillus acidophilus bacteria found in this fruitghurt can reduce oxidative stress by inhibiting ascorbic acid oxidation, reducing activity and capturing radial superoxide anions, hydrogen peroxide, and free radicals, and inhibiting lipid oxidation. So this fruitghurt has antioxidant properties. This is also strengthened by the content of red guava which is rich in phenolics, flavonoids, and vitamin C that have good free radical scavenging activity, so guava fruit is a natural source of antioxidants. Keywords: antioxidants, fruitghurt, malon dialdehyde, probiotics, red guava

THE EFFECT OF RED DRAGON FRUIT PEEL EXTRACT (HYLOCEREUS POLYRHIZUS) ON COLLAGEN DEPOSITION IN THE KIDNEYS OF MENOPAUSAL MODEL RATS (RATTUS NORVEGICUS)

Background: The estrogen hormone possesses nephroprotective properties during menopause that can influence kidney function. This increases collagen deposition in the kidneys. Estrogen deficiency during menopause can be replaced by phytoestrogens. The skin of red dragon fruit (Hylocereus polyrhizus) contains numerous anthocyanin contents, which have been proven to exhibit activities as phytoestrogens. Objective: To determine whether there are changes in collagen deposition in the kidneys of menopausal rat models with the administration of Hylocereus polyrhizus peel extract. Methods: This research utilized a randomized post-test control group design with three sample groups that had undergone ovariectomy. The three groups consist a control group without intervention (P0), an intervention group with red dragon fruit peel extract at a dose of 60mg/200gBW (P1), and an intervention group with red dragon fruit peel extract at a dose of 90mg/200gBW (P2). Results: The mean percentage of collagen expression in menopausal rat kidneys in groups P0, P1, and P2 were 0.876 ± 0.433, 0.189 ± 0.102, and 0.162 ± 0.108, respectively. The Kruskal-Wallis test revealed a significant difference with a p-value of 0.000. Post-Hoc Mann-Whitney U test found a significant difference between groups P0 and P1 (p = 0.000), as well as groups P0 and P2 (p = 0.000). However, there was no significant difference between P1 and P2 (p = 0.436). Conclusion: The extract of Hylocereus polyrhizus peel has an effect on the collagen deposition in the kidneys of menopausal rat models. The lowest level of collagen deposition in the kidneys was observed in the intervention group with a dose of 90mg/200gBW. Keywords : Hylocereus polyrhizus, collagen, kidney, menopause

The Effect of Local Papaverine Use in an Experimental High-Risk Colonic Anastomosis Model: Reduced Inflammatory Findings and Less Necrosis.

Objectives: To assess the impact of topical papaverine administration in complete and incomplete colonic anastomosis, by examining bursting pressure, hydroxyproline concentration, collagen content, inflammation levels, inflammatory cell infiltration, neoangiogenesis, and necrosis grades. Methods: We performed an experimental study on rats, in which they were divided into the following 4 groups of 16 subjects each. Group 1 [complete anastomosis (CA) without papaverine (CA -P) group], Group 2 [CA with papaverine (CA +P) group], Group 3 [incomplete anastomosis (ICA) without papaverine (ICA -P) group], and Group 4 [ICA with papaverine (ICA +P) group]. Results: The lymphocyte infiltration score of the ICA +P3 (day 3) group was significantly higher compared to the ICA -P3 group (p = 0.018). The median Ehrlich-Hunt score (p = 0.012), inflammation score (p = 0.026), and neutrophil infiltration score (p = 0.041) of the CA +P7 (day 7) group were significantly lower than the corresponding data of the CA -P7 group. Additionally, the necrosis score of the ICA +P7 group was significantly lower than that of the ICA -P7 group (p = 0.014). Conclusions: Data from the current study reveal that, although topical papaverine seems to suppress inflammation in anastomosis tissue and reduce necrosis at 7 days, definite conclusions regarding its impact on anastomotic leak cannot be drawn without further studies investigating anastomotic wound healing and anastomotic leak, preferably with both shorter- and longer-term evaluations.

Effects of Short-Term Physiotherapy in Hospitalized COVID-19 Patients Infected with Mutant and Non-Mutant Virus: A Prospective Study

Aim: The aim of study, to assess the short term effects of physiotherapy on patients infected with mutant and non-mutant SARS-CoV-2 virus. Material and Methods: The patients included in the study were analyzed in two different groups. Patients infected with non-mutant SARS-CoV-2 were in Group 1 (n=16; age=53.81±9.48). Patients infected with mutant SARS-CoV-2 were included in Group 2 (n=16; age=55.25±10.12). Physiotherapy which included mobilization, normal range of motion, and a breathing exercise program, was performed on both groups (Group 1: Median=7.00; Min-Max=5-20 days; Group 2: Median: 7.00; Min-Max=4-15 days). All patients underwent a once-daily physiotherapy program. The patients' muscle strength, mobility, activities of daily living, exercise capacity, and perception of fatigue were evaluated. The mixed repeated measures ANOVA model was used to compare groups. Results: It was found that physiotherapy improved muscle strength, mobility, ability to perform activities of daily living, exercise capacity, and perception of fatigue in both groups (p0.05). Conclusion: The current study showed that a short term physiotherapy program was as successful in patients infected with mutant SARS-CoV-2 as it was in patients infected with non-mutant SARS-CoV-2. Physiotherapy is beneficial for COVID-19 disease, as it decreases functional limitation and symptoms of COVID-19 disease by contributing positively to muscle strength, mobility, activities of daily living, exercise capacity, and the perception of fatigue.

B - 12 Differences in Quality of Life in Students with Functional Neurological Disorders by School Setting

Abstract Objective Attending school in person for students with Functional Neurological Disorder (FND) has been recommended for improved functioning and reduced symptoms. There is little to no research measuring the impact of school setting on quality of life. This study investigates whether school setting impacts parent-perceived quality of life (QoL) in children with FND. Method The study included 142 patients (ages 7–19 years old) diagnosed with FND that were seen in an outpatient clinic at Children’s Medical Center, Dallas. Patients were classified as either participating in homeschool, regular in-person schooling, or in-person schooling with an Individualized Education Plan (IEP) or Section 504 accommodations. This did not include children being homeschooled solely due to COVID-19 school closures. A parent or guardian completed the PedsQL questionnaire. A single factor ANVOA was utilized to identify significant differences between groups. Post hoc comparisons using the Tukey HSD test were then conducted. Results Results revealed overall significant differences between groups (p0.1). Conclusions Results of this study support the recommendation of attending school in person, with or without formal support. Participation in typical daily routines may improve overall impact of pediatric FND.

The influence of dietary supplementation with oyster mushroom waste on laying hens’ performance, egg quality and immune parameters

The objective of the present study was to evaluate the effects of dietary supplementation with oyster mushroom (Pleurotus ostreatus) waste (OMW) on performance, egg quality, fatty acid (FA) profile and oxidative stability, serum and yolk cholesterol and immune parameters of laying hens. Two hundred fifty-six laying hens were allocated into 4 treatment groups, with eight replicate cages, and were fed for 28 d either a control diet, or diets supplemented with OMW at 1, 2 or 4 g per 100 g feed (P1, P2 and P4 experimental groups, respectively). No significant effects were detected on the performance and egg quality (P > 0.05) except from a modest decrease in the intensity of orange yolk color from hens fed with OMW, as indicated by the reduced DSM YolkFan score and color parameter a* (redness) (P < 0.05), and the tendency for increased color parameter L* (lightness) (P < 0.1). Serum total cholesterol and high-density lipoprotein content were decreased in OMW experimental groups compared with the control group (P, P-linear < 0.05) whereas yolk cholesterol content was unaffected (P > 0.05). The ratio of heterophils to lymphocytes were not influenced by dietary treatment (P > 0.05), whereas T helper lymphocyte (Th) percentage was increased in OMW supplemented groups in comparison with control (P < 0.05, P-quadratic < 0.05). The yolk FA profile was beneficially affected, as shown by the linear increase in polyunsaturated FA and a linear decrease in saturated FA in OMW supplemented groups of hens (P-linear < 0.05), with most notable effects observed in the P4 group. Furthermore, oxidative stability, that was expressed as malondialdehyde content, of both fresh and stored egg yolks for up to 90 d, was significantly improved in OMW supplemented groups (P < 0.05). The beneficial effects of OMW on yolk oxidative stability and FA profile, without adverse effects on performance or egg quality, shows that this byproduct may be successfully employed in laying hens' diets, in a circular economy scheme, with benefits not only for the consumers and farmers but for the environment as well.

Effects of Fermented Herbal Extract as a Phytobiotic on Growth Indices, Moulting Performance, and Feed Utilization of Juvenile Tiger Shrimp (Penaeus monodon Fabr.)

The objective of this study was to investigate the impact of adding fermented herbal extracts (FHE) derived from mulberry leaf (Morus alba), Javanese turmeric (Curcuma xanthorrhiza), and fingerroot (Boesenbergia rotunda) to the diet of tiger shrimp (Penaeus monodon) on their growth, moulting performance, feed efficiency, and nutrient retention. The main feed used in this trial was a commercially manufactured pellet; then, five different doses of FHE supplementation were used: 0 mg/kg feed (P0, control), 50 mg/kg feed (P1), 100 mg/kg feed (P2), 150 mg/kg feed (P3), and 200 mg/kg feed (P4). Weight gain, average daily gain, and length gain of shrimps fed P2 were significantly higher than that of those fed the control diet. A similar result was observed in moulting performance. The application of P2 showed superior results in enhancing the feed efficiency of cultured shrimp. Thus, the protein and energy retention of P. monodon was significantly better in P2 treatment groups. P0 had the lowest crude protein, while shrimp on the P2 and P3 diets had the highest crude protein content of any treatment group. Crude lipid content was lower in shrimp fed diets supplemented with FHE compared to those fed the control diet. In addition, higher energy contents were found in P1 and P2 treatment groups. Based on the findings, it is recommended that the juvenile tiger shrimp diet contain 100 mg/kg of FHE for the best effects.

Pomotrelvir and Nirmatrelvir Binding and Reactivity with SARS‐CoV‐2 Main Protease: Implications for Resistance Mechanisms from Computations

AbstractWe investigate the inhibition mechanism between pomotrelvir and the SARS‐CoV‐2 main protease using molecular mechanics and quantum mechanics/molecular mechanics simulations. Alchemical transformations where each Pi group of pomotrelvir was transformed into its counterpart in nirmatrelvir were performed to unravel the individual contribution of each group to the binding and reaction processes. We have shown that while a γ‐lactam ring is preferred at position P1, a δ‐lactam ring is a good alternative for the design of inhibitors for variants presenting mutations at position 166. For the P2 position, tertiary amines are preferred with respect to secondary amines. Flexible side chains at the P2 position can disrupt the preorganization of the active site, favouring the exploration of non‐reactive conformations. The substitution of the P2 group of pomotrelvir by that of nirmatrelvir resulted in a compound, named as C2, that presents a better binding free energy and a higher population of reactive conformations in the Michaelis complex. Analysis of the chemical reaction to form the covalent complex has shown a similar reaction mechanism and activation free energies for pomotrelvir, nirmatrelvir and C2. We hope that these findings could be useful to design better inhibitors to fight present and future variants of the SARS‐CoV‐2 virus.

Pomotrelvir and Nirmatrelvir Binding and Reactivity with SARS-CoV-2 Main Protease: Implications for Resistance Mechanisms from Computations.

We investigate the inhibition mechanism between pomotrelvir and the SARS-CoV-2 main protease using molecular mechanics and quantum mechanics/molecular mechanics simulations. Alchemical transformations where each Pi group of pomotrelvir was transformed into its counterpart in nirmatrelvir were performed to unravel the individual contribution of each group to the binding and reaction processes. We have shown that while a γ-lactam ring is preferred at position P1, a δ-lactam ring is a good alternative for the design of inhibitors for variants presenting mutations at position 166. For the P2 position, tertiary amines are preferred with respect to secondary amines. Flexible side chains at the P2 position can disrupt the preorganization of the active site, favouring the exploration of non-reactive conformations. The substitution of the P2 group of pomotrelvir by that of nirmatrelvir resulted in a compound, named as C2, that presents a better binding free energy and a higher population of reactive conformations in the Michaelis complex. Analysis of the chemical reaction to form the covalent complex has shown a similar reaction mechanism and activation free energies for pomotrelvir, nirmatrelvir and C2. We hope that these findings could be useful to design better inhibitors to fight present and future variants of the SARS-CoV-2 virus.

The effect of feeding a mixture of shellfish meal and fish oil on egg production and egg storability of Lohmann Brown laying hens

The aim of the research was to determine the effect of feeding a mixture of shellfish (SF) and fish oil (FO) on egg production performance and storability of Lohmann Brown hen eggs. The study used a completely randomized design consisting of 4 treatments and 4 replications, and each replication consisted of 40 Lohman Brown hens with the same laying age (45 weeks of age). The four treatments were mixed levels of shellfish flour with fish oil in feed, namely 0%, 1%, 2%, and 3%, as treatments P0, P1, P2, and P3. Egg samples were taken at the end of the study, then stored and observed for 4 weeks. The results showed that egg pH and haugh units (HU) in the P2 and P3 hen groups significantly (P&lt;0.05) increased. Meanwhile, egg shell weight and egg yolk color did not show significant differences (P&gt;005). Feeding SFFO to P2 and P3 hen groups increased (P&lt;0.05) egg weight, hen-day-production and feed efficiency (feed consumption/egg weight). It can be concluded that SFFO can be used as an ingredient in laying hens with an inclusion level of 20-30g/kg and can be used in chicken feed during the finishing phase. SFFO may affect the storability of Lohmann Brown hen eggs.

Association between the pan-immune-inflammation value and coronary collateral circulation in chronic total coronary occlusive patients

BackgroundInflammation and immunity play important roles in the formation of coronary collateral circulation (CCC). The pan-immune-inflammation value (PIV) is a novel marker for evaluating systemic inflammation and immunity. The study aimed to investigate the association between the PIV and CCC formation in patients with chronic total occlusion (CTO).MethodsThis retrospective study enrolled 1150 patients who were diagnosed with CTO through coronary angiographic (CAG) examinations from January 2013 to December 2021 in China. The Cohen-Rentrop criteria were used to catagorize CCC formation: good CCC formation (Rentrop grade 2–3) and poor CCC formation group (Rentrop grade 0–1). Based on the tertiles of the PIV, all patients were classified into three groups as follows: P1 group, PIV ≤ 237.56; P2 group, 237.56< PIV ≤ 575.18; and P3 group, PIV > 575.18.ResultsA significant relationship between the PIV and the formation of CCC was observed in our study. Utilizing multivariate logistic regression and adjusting for confounding factors, the PIV emerged as an independent risk factor for poor CCC formation. Notably, the restricted cubic splines revealed a dose–response relationship between the PIV and risk of poor CCC formation. In terms of predictive accuracy, the area under the ROC curve (AUC) for PIV in anticipating poor CCC formation was 0.618 (95% CI: 0.584–0.651, P < 0.001). Furthermore, the net reclassification index (NRI) and integrated discrimination index (IDI) for PIV, concerning the prediction of poor CCC formation, were found to be 0.272 (95% CI: 0.142–0.352, P < 0.001) and 0.051 (95% CI: 0.037–0.065, P < 0.001), respectively. It’s noteworthy that both the NRI and IDI values were higher for PIV compared to other inflammatory biomarkers, suggesting its superiority in predictive capacity.ConclusionsPIV was associated with the formation of CCC. Notably, PIV exhibited potential as a predictor for poor CCC formation and showcased superior predictive performance compared to other complete blood count-based inflammatory biomarkers.

Black Women and the Preemie Prep for Parents (P3) Program: Exploratory Analysis of a Clinical Trial.

The smartphone Preemie Prep for Parents (P3) program was developed to address the gap in prenatal education of preterm birth in high-risk pregnancies. Despite a higher incidence of preterm birth, Black women are less likely to receive prenatal education. Pregnant women with medical conditions that predisposed them to preterm birth were randomized to receive the P3 program or links to American College of Obstetricians and Gynecologists webpages (control). The P3 group received periodic text messages, starting as early as 18 weeks gestational age, each with a link to a short, animated educational video. Participants completed the Parent Prematurity Knowledge Questionnaire, PROMIS Anxiety scale, and a feedback survey. This is a subgroup analysis of the Black, non-Hispanic participants in the P3 trial. Of the 26 Black non-Hispanic women enrolled, the P3 group (n=14) had higher knowledge scores than the control group (n=12), 67.5% correct vs. 43.6% (difference 24.0; 95% CI, 7.4 to 40.6), without experiencing an increase in anxiety. More P3 participants reported discussing preterm birth with their partner (100%) than control participants (57%; difference 43; 95% CI, 6 to 80). The P3 program appears to be an effective method of providing preterm birth education to Black pregnant women.

Effect of Ajwa Date (Phoenix dactylifera) Extract on the Histopathology of Pancreatic Islets in Mice with Diabetes Mellitus

Introduction: It is necessary to develop alternative antidiabetic therapies that are safer and more affordable to overcome the high prevalence of diabetes mellitus in Indonesia. Ajwa dates (Phoenix dactylifera) have a high flavonoid content; hence, this study aimed to investigate their effect on streptozotocin-induced diabetes mellitus mice by examining the number of beta cells and the islets of Langerhans. Methods: Twenty-five mice were divided into five groups: a negative control group (K1), a positive control group (K2), and three treatment groups (P1, P2, and P3). The K2, P1, P2, and P3 groups were induced by 100 mg/kg bw of streptozotocin. Additionally, the P1, P2, and P3 groups received oral treatment using ajwa date methanol extract at different doses of 3, 5, and 7 g/kg bw, respectively. The treatment was administered daily for four weeks. The initial analysis included the homogeneity test and the Shapiro-Wilk test. As the data were non-normally distributed, the analysis proceeded with the Kruskal-Wallis test (p&lt;0.05). Results: The comparative analysis revealed significant differences in the number of beta cells among the groups, with a notable decrease observed in the K2 group and an increase in each treatment group. The measurement of the islets of Langerhans exhibited significant differences among the groups, with p=0.001. Conclusion: The administration of ajwa date methanol extract can affect the number of beta cells and the islets of Langerhans in mice with diabetes mellitus. Highlights: This original study examined the antioxidant compounds derived from naturally sourced ajwa date (Phoenix dactylifera) extract. Ajwa date extract has the potential to protect against histological damage, specifically to beta cells and pancreatic islets, in mice induced by streptozotocin.

Phytochemical profiling and Immunomodulatory activity of belincong (Marsdenia brunoniana) fruit extract against Staphylococcus aureus infection in mice

Marsdenia brunoniana, called belincong, is a wild plant growing in East Java, Indonesia. This study aimed to determine the phytochemical compounds and immunomodulatory activity of M. brunoniana fruit extract. Phytochemical screening of M. brunoniana fruit extract used GC-MS analysis. The immunomodulatory activity of M. brunoniana fruit extract was determined using the number of leukocytes, the weight of the spleen, phagocytic activity, and antibody level. There were 25 mice divided into five groups. Normal control (KN) was the group without any treatment, but negative control (K-) was the group with twice Staphylococcus aureus infection. The M. brunoniana fruit extract treatment groups were differentiated based on dose (P1= 50 mg/kg BW; P2= 100mg/kg BW; P3= 150mg/kg BW). M. brunoniana fruit extract was administered orally for two weeks, and Staphylococcus aureus was injected intraperitoneally after extract administration twice. The GC-MS analysis showed that M. brunoniana fruit extract has 28 compounds. The most compounds in the fruit extract were 1,2,3-Propanetriol (CAS) Glycerol, 1,4-Benzenediol (CAS) Hydroquinone, and Piperidine, 1-methyl- (CAS) N-Methylpiperidine. M. brunoniana fruit extract showed immunomodulatory activity by enhancing phagocytic activity and the weight of the spleen in the P2 group. In addition, the number of leukocytes returned to normal in the P1 group. Not only modulating the innate system, M. brunoniana fruit extract also significantly increased the level of antibodies in mice serum in the P3 group. Based on these results, phytochemical compounds of M. brunoniana fruit extract have immunomodulatory activity against Staphylococcus aureus infection.

Higher solubility and lower onset temperature of protein denaturation increase the osteoconductive capacity of collagen membranes: A preclinical invivo study.

Collagen membranes are extensively used for guided bone regeneration procedures, primarily for horizontal bone augmentation. More recently, it has been demonstrated that collagen membranes promote bone regeneration. Present study aimed at assessing if structural modifications of collagen membranes may enhance their osteoconductive capacity. Twenty-four adult Wistar rats were used. Bilateral calvaria defects with a diameter of 5 mm were prepared and covered with prototypes of collagen membranes (P1 or P2). The P1 membrane (positive control) presented a lower onset temperature of protein denaturation and a higher solubility than the P2 membrane (test). The contralateral defects were left uncovered (NC). After 1 and 4 weeks, the animals were euthanized. A microcomputed tomography analysis of the harvested samples was performed within and above the bony defect. Undecalcified ground sections were subjected to light microscopy and morphometric analysis. Bone formation was observed starting from the circumferential borders of the defects in all groups at 1-week of healing. The foci of ossification were observed at the periosteal and dura mater sites, with signs of collagen membrane mineralization. However, there was no statistically significant difference between the groups. At 4 weeks, remnants of the collagen fibers were embedded in the newly formed bone. In the P2 group, significantly more bone volume, more new bone, and marrow spaces compared to the NC group were observed. Furthermore, the P2 group showed more bone volume ectocranially then the P1 group. Bone formation subjacent to a P2 membrane was superior than subjacent to the P1 membrane and significantly better compared to the control. Modifications of the physico-chemical properties may enhance the osteoconductive competence of collagen membranes, supporting bone formation outside the bony defects.

The effect of arrowroot diet on pancreatic and kidney histomorphology of mice induced by D-Galactose

Arrowroot contains antioxidants that can potentially reduce d-galactose-induced aging in the pancreas and kidneys. This study aimed to determine the effect of arrowroot administration on the histomorphology of the pancreas and kidneys of mice induced by d-galactose. Experimental research that has been conducted in 2023 using Musculus Balb/C mice were divided into four groups as follows: a healthy control group (HC), negative control (NC) with d-galactose induction &amp; standard feed, P1 and P2 groups with d-galactose inductions &amp; 45% and 60% arrowroot feed. Histological slides were stained with haematoxylins-eosin. Data analysis was performed using a microscope at a magnification of 40 × 10. Severe signs of aging in pancreas (cell atrophy, cytoplasmic vacuolation, necrosis, congestion, and inflammation) were observed in NC and P1 groups and minimal signs in P2 compared to HC group. The damage mean (%) of tubular, glomerular kidney and inflammation scores were 52.46 ± 1.46, 76.66 ± 9.87, 67.99 ± 2.12, and 60.93 ± 0.55 (p=0.005); 62.64 ± 11.13, 70.48 ± 13.32, 71.25 ± 8.04, and 65.53 ±14.26, (p=0.707); 8.75 ± 2.5, 27.25 ± 4.57, 8 ± 7.25, and 13.5 ± 6.19, (p=0.001), respectively. In conclusion, administration of arrowroot affects the histomorphology features of the pancreas and kidneys of mice induced by aging using d-galactose.

Physicochemical properties of 2-amino-5-methylpyridinium 3-carboxy-4-hydroxybenzenesulfonate single crystal: An efficient material for optoelectronic applications

A novel third-order organic nonlinear optical (NLO) material with promising excellent properties in the crucial NLO application. For the first time high NLO active 2-amino-5-methylpyridinium 5-sulfosalicylic acid (2A5MP3C4H) has been rationally designed and single crystals have been grown by the slow evaporation solution growth technique (SEST). X-ray diffraction analysis revealed that 2A5MP3C4H belongs to the category of triclinic system and has a Centro symmetric space group of P1. Remarkably, the grown crystal exhibits competitive and even superior physical properties including high thermal stability and wider transparency than the standard NLO single crystal. The morphology of the as-grown 2A5MP3C4H crystal was equivalent to the theoretically produced morphology. Fourier transform infrared spectroscopy (FTIR) was used to investigate the molecular vibrations of 2A5MP3C4H. The optical characteristics of 2A5MP3C4H recorded optical transmittance spectrum reveals that the 2A5MP3C4H crystal possesses good optical transparency in the range between ultraviolet (UV) and near-infrared (NIR) regions. Intriguingly, the short cut-off edge of the grown crystal is found to be about 345 nm which is more favourable for developing modern photonic and optoelectronic devices application. The Laser Damage Threshold (LDT), were investigated to understand its effectiveness to be utilized in the area of optoelectronics and photonics. The thermal and mechanical stability of 2A5MP3C4H was tested using Thermo gravimetric Differential Thermal Analysis (TG-DTA) and Vickers hardness test. The third-order nonlinear optical properties of 2A5MP3C4H single crystals were analyzed, which involves studying the absorption coefficient and refractive index behaviour using a continuous wave laser. Additionally, the grown crystal exhibits outstanding third-order NLO response and wide LDT, which are crucial characteristics for developing practical NLO devices. There are various 2-amino-5-methylpyridine (2A5MP) derivative single crystals available in the literature. However 2A5MP3C4H crystal has not been reported earlier. So, we have carried out our researcher on this new novel crystal. Our findings consequently open a novel path for the logical design of enormous, thermally stable and NLO-active organic complexes for true NLO applications.

Investigating the differential therapeutic efficacy and mechanisms of human umbilical cord mesenchymal stem cells at various passages in osteoarthritis treatment

This study aimed to assess the clinical efficacy of umbilical cord mesenchymal stem cells (hUC-MSCs) from different passages (P3, P8, and P13) in the treatment of knee osteoarthritis (OA) and explore the underlying mechanisms. The hUC-MSCs from each passage were characterized and evaluated for their stemness, migration, proliferation, and marker expression. Rats with OA were treated with hUC-MSCs from each passage, and the therapeutic effects were assessed based on knee swelling, discomfort, and pathological examination of the knee joint. Co-culture experiments were conducted to examine the ability of hUC-MSCs to stimulate type II collagen synthesis and inhibit MMP13 expression in chondrocytes. Telomere length and telomerase activity of hUC-MSCs from each passage were measured to investigate the reasons for the observed differences in clinical efficacy. The results revealed that P3 and P8 hUC-MSCs exhibited superior osteogenic and chondrogenic differentiation potential compared to P13, while P13 demonstrated stronger adipogenic differentiation. The wound healing rate was significantly higher in the P3 and P8 groups compared to P13. All hUC-MSC groups expressed high levels of CD90 and CD105, indicating their mesenchymal stem cell characteristics, while CD31 and CD45 were not expressed. CD105 expression was significantly reduced in the P13 group. In the treatment of rat osteoarthritis, there were no significant differences in knee swelling, discomfort, Mankin scores, and pathological findings between P3 and P8 hUC-MSC treatments. However, there was a significant difference between the 8th and 13th passages. Co-culture experiments showed that hUC-MSCs from P3 and P8 enhanced type II collagen synthesis and reduced MMP13 expression in chondrocytes. Although no significant difference was observed between the P3 and P8 groups, a significant difference was found between the P13 and P8 groups. Telomere length analysis revealed that P13 samples had significantly shorter telomeres compared to both P3 and P8. The telomerase activity was positive in P3 and P8 hUC-MSCs, indicating no significant difference between these passages, while it was negative in P13 hUC-MSCs. In conclusion, P3 and P8 hUC-MSCs exhibited superior therapeutic potential for knee osteoarthritis compared to P13, possibly due to their enhanced differentiation capacity and telomerase activity.

Ostruthin, a TWIK-Related Potassium Channel Agonist, Increases the Body Temperature in Ovariectomized Rats With or Without Progesterone Administration.

The TWIK-related potassium (TREK) channel subfamily, including TREK1 and TREK2, is a novel cold receptor. Ostruthin, a TREK1 and TREK2 agonist, is a component found in the plant Paramignya trimera and is traditionally used as an anticancer medicine in Vietnam, with its stems and roots treating various ailments. The female hormone progesterone (P4) influences body temperature in women; however, the effect of P4 on thermoregulation via TREK has not been examined. This study aims to investigate the effects of P4 on thermoregulatory responses in ostruthin-administered ovariectomized rats, which are animal models of human menopause. Wistar rats were ovariectomized and implanted with silastic tubes with or without P4 (P4(+) and P4(-) groups). The TREK agonist or vehicle was injected intraperitoneally. Body temperature, locomotor activity, tail skin temperature, and thermoregulatory behavior (assessed by tail-hiding behavior) were continuously measured. Plasma concentrations of catecholamines, triiodothyronine, and thyroxine were also measured. In both the P4(+) and P4(-) groups, the change in body temperature was greater among the rats administered the TREK agonist compared to the vehicle. No significant differences were observed between the groups in locomotor activity, tail skin temperature, or tail-hiding behavior. The dopamine concentration in the P4(+) group was lower than that in the P4(-) group. Ostruthin, the TREK agonist, increases body temperature in ovariectomized rats; however, P4 may not affect these responses in ovariectomized rats.

Administration of arabica coffee green bean extract (Coffea arabica L.) reduces tumor necrosis factor-α levels and increases superoxide dismutase levels in excessive physical exercise male Wistar rats (Rattus norvegicus)

Background: Green Arabica coffee bean water extract contains phenolic acid, polyphenols, caffeine, and chlorogenic acid, which are responsible for health benefits including antioxidant and anti-inflammatory properties. Excessive exercise induces oxidative stress. Tumor necrosis factor-α (TNF-α) and the superoxide dismutase (SOD) may be modified by routine administration of green Arabica coffee bean water extract at the appropriate concentration. Thus, the study aimed to determine the effect of green Arabica coffee bean water extract on TNF-α and SOD levels after excessive physical exercise treatment in a male Wistar rat.Methods: This research used a posttest-only control group design method. Subjects were Wistar rats (Rattus norvegicus), male, 2-3 months old, weighing 150-200 grams. The P0 group was not given treatment. Groups P1, P2, P3, and P4 were given excessive physical exercise. Group P1 was given distilled water. Groups P2, P3, and P4 were given Arabica coffee bean extract at 200, 400, and 800 mg/kg, respectively. Phytochemical was determined by thin layer chromatography (TLC) spectrophotometry method for caffeine, but phenolic acid and polyphenol were standardized to gallic acid (GA). Antioxidant activity was tested using the DPPH method. TNF-α and SOD levels were determined by ELISA methods. Differences among groups were tested with one-way ANOVA and least significant difference (LSD) post hoc test at p &lt; 0.001.Results: One-way ANOVA test showed differences in TNF-α levels (F = 6,388.964; p &lt; 0.001). The LSD post hoc test showed that TNF-α levels in the P1 (159.640 ± 0.167) were higher compared to the P0 (151.720 ± 0.303) (p &lt; 0.001). The levels of TNF-α in P2 (139.680 ± 0.303) were lower than in P1 (p &lt; 0.001). However, TNF-α levels in P3 (161.680 ± 0.084) and P4 (163.750 ± 0.412) were higher than in P1. One-way ANOVA test showed that there were differences in SOD levels (F = 5,564.526; p = 0.003). The LSD post hoc test showed that SOD levels in the P1 (0.742 ± 0.009) were lower than those in the P0 (1.448 ± 0.022) (p &lt; 0.001). The levels of SOD in P2 (1.668 ± 0.026) were higher than in P1 (p &lt; 0.001). However, SOD levels in P3 (0.680 ± 0.003) and P4 (0.591 ± 0.010) were lower than in P1.Conclusion: Administration of Arabica coffee green bean extract prevents an increase in TNF-α levels and decreases SOD levels in excessive physical exercise male Wistar rats.