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1.
Anal Chem ; 2024 Jul 15.
Article in English | MEDLINE | ID: mdl-39008658

ABSTRACT

Deep learning (DL) is becoming more popular as a useful tool in various scientific domains, especially in chemistry applications. In the infrared spectroscopy field, where identifying functional groups in unknown compounds poses a significant challenge, there is a growing need for innovative approaches to streamline and enhance analysis processes. This study introduces a transformative approach leveraging a DL methodology based on transformer attention models. With a data set containing approximately 8677 spectra, our model utilizes self-attention mechanisms to capture complex spectral features and precisely predict 17 functional groups, outperforming conventional architectures in both functional group prediction accuracy and compound-level precision. The success of our approach underscores the potential of transformer-based methodologies in enhancing spectral analysis techniques.

2.
Appl Radiat Isot ; 211: 111418, 2024 Sep.
Article in English | MEDLINE | ID: mdl-38944899

ABSTRACT

In this study, we investigate the impact of zenith angle variations on cosmic-ray induced background in High-Purity Germanium (HPGe) gamma spectrometers using a coincidence technique based on plastic scintillator-Germanium detectors. We utilize an HPGe detector (Model GC2018 Mirion Ge Detector) enclosed within a low-activity cylindrical lead shield (Model 747E Mirion Lead Shield). For cosmic ray detection, a coincidence detection system with plastic scintillator detectors was positioned on top of the lead shielding. The zenith angle at the Germanium detector is computed using the dimensions of the square plastic scintillator and its distance from the Germanium detector center. We carried out measurements of cosmic-ray induced background in an HPGe gamma spectrometer with a square plastic configuration (80cm x 80cm), equivalent to a 45° zenith angle. The experimental measurements were compared with GEANT4 simulation data. The results demonstrate a good agreement between the measured energy spectrum and the simulated data across the energy range of 0.05 to 47 MeV. Further investigations into the effects of varying zenith angles provide valuable insights for optimizing HPGe spectrometer setups with minimized background interference.

3.
Glob Health Sci Pract ; 12(3)2024 Jun 27.
Article in English | MEDLINE | ID: mdl-38936961

ABSTRACT

Countries that are high burden for TB must reverse the COVID-19 pandemic's devastating effects to accelerate progress toward ending TB. Vietnam's Double X (2X) strategy uses chest radiography (CXR) and GeneXpert (Xpert) rapid diagnostic testing to improve early detection of TB disease. Household contacts and vulnerable populations (e.g., individuals aged 60 years and older, smokers, diabetics, those with alcohol use disorders, and those previously treated for TB) with and without TB symptoms were screened in community campaigns using CXRs, followed by Xpert for those with a positive screen. In public non-TB district facilities, diabetics, respiratory outpatients, inpatients with lung disease, and other vulnerable populations underwent 2X evaluation. During COVID-19 restrictions in Vietnam, the 2X strategy improved access to TB services by decentralization to commune health stations, the lowest level of the health system, and enabling self-screening using a quick response mobile application. The number needed to screen (NNS) with CXRs to diagnose 1 person with TB disease was calculated for all 2X models and showed the highest yield among self-screeners (11 NNS with CXR), high yield for vulnerable populations in communities (60 NNS) and facilities (19 NNS), and moderately high yield for household contacts in community campaigns (154 NNS). Computer-aided diagnosis for CXRs was incorporated into community and facility implementation and improved physicians' CXR interpretations and Xpert referral decisions. Integration of TB infection and TB disease evaluation increased eligibility for TB preventive treatment among household contacts, a major challenge during implementation. The 2X strategy increased the rational use of Xpert, employing a health system-wide approach that reached vulnerable populations with and without TB symptoms in communities and facilities for early detection of TB disease. This strategy was effectively adapted to different levels of the health system during COVID-19 restrictions and contributed to post-pandemic TB recovery in Vietnam.


Subject(s)
COVID-19 , Humans , Vietnam/epidemiology , COVID-19/epidemiology , COVID-19/prevention & control , Tuberculosis, Pulmonary/diagnosis , Tuberculosis, Pulmonary/prevention & control , Tuberculosis, Pulmonary/epidemiology , Mass Screening/organization & administration , Mass Screening/methods , SARS-CoV-2 , Middle Aged , Radiography, Thoracic , Tuberculosis/diagnosis , Tuberculosis/prevention & control , Tuberculosis/epidemiology , Female , Pandemics , Male , Vulnerable Populations
4.
Psychol Health Med ; : 1-14, 2024 May 02.
Article in English | MEDLINE | ID: mdl-38697127

ABSTRACT

The purpose of the study was to examine the association between coping strategies and perceived social support among women diagnosed with infertility and undergoing IVF treatment. A total of 383 Vietnamese women were invited to participate in this study. Participants completed a questionnaire consisting of The Multidimensional Scale of Perceived Social Support, the Copenhagen Multi-centre Psychosocial Infertility coping scales and the Fertility Problem Inventory, and other relevant questions. The results reveal that coping strategies significantly predict some specific types of perceived social supports among women undergoing IVF treatment. Specifically, passive-avoidance coping (PAC) and active-avoidance coping (AAC) predicts a decrease in receiving support from family and friends, whereas active-confronting coping (ACC) predicts an increase in receiving support from these two sources of support. Women who demonstrate increased meaning-based coping (MBC) received all three sources of support including family, friends, and significant others support. Despite some limitations, this study is useful in understanding how coping strategies among women undergoing IVF treatment affects the social support received in the Vietnamese social context. It also emphasizes the importance of psychological support for women facing IVF treatment distress.

5.
Elife ; 132024 May 30.
Article in English | MEDLINE | ID: mdl-38813868

ABSTRACT

Germline epigenetic programming, including genomic imprinting, substantially influences offspring development. Polycomb Repressive Complex 2 (PRC2) plays an important role in Histone 3 Lysine 27 trimethylation (H3K27me3)-dependent imprinting, loss of which leads to growth and developmental changes in mouse offspring. In this study, we show that offspring from mouse oocytes lacking the PRC2 protein Embryonic Ectoderm Development (EED) were initially developmentally delayed, characterised by low blastocyst cell counts and substantial growth delay in mid-gestation embryos. This initial developmental delay was resolved as offspring underwent accelerated fetal development and growth in late gestation resulting in offspring that were similar stage and weight to controls at birth. The accelerated development and growth in offspring from Eed-null oocytes was associated with remodelling of the placenta, which involved an increase in fetal and maternal tissue size, conspicuous expansion of the glycogen-enriched cell population, and delayed parturition. Despite placental remodelling and accelerated offspring fetal growth and development, placental efficiency, and fetal blood glucose levels were low, and the fetal blood metabolome was unchanged. Moreover, while expression of the H3K27me3-imprinted gene and amino acid transporter Slc38a4 was increased, fetal blood levels of individual amino acids were similar to controls, indicating that placental amino acid transport was not enhanced. Genome-wide analyses identified extensive transcriptional dysregulation and DNA methylation changes in affected placentas, including a range of imprinted and non-imprinted genes. Together, while deletion of Eed in growing oocytes resulted in fetal growth and developmental delay and placental hyperplasia, our data indicate a remarkable capacity for offspring fetal growth to be normalised despite inefficient placental function and the loss of H3K27me3-dependent genomic imprinting.


Subject(s)
Genomic Imprinting , Animals , Female , Pregnancy , Mice , Polycomb Repressive Complex 2/metabolism , Polycomb Repressive Complex 2/genetics , Fetal Development/genetics , Placenta/metabolism , Oocytes/metabolism , Oocytes/growth & development , Amino Acid Transport System A
6.
Sci Rep ; 14(1): 9157, 2024 04 22.
Article in English | MEDLINE | ID: mdl-38644456

ABSTRACT

Brown adipose tissue (BAT) which is a critical regulator of energy homeostasis, and its activity is inhibited by obesity and low-grade chronic inflammation. Ginsenoside Rg3, the primary constituent of Korean red ginseng (steamed Panax ginseng CA Meyer), has shown therapeutic potential in combating inflammatory and metabolic diseases. However, it remains unclear whether Rg3 can protect against the suppression of browning or activation of BAT induced by inflammation. In this study, we conducted a screening of ginsenoside composition in red ginseng extract (RGE) and explored the anti-adipogenic effects of both RGE and Rg3. We observed that RGE (exist 0.25 mg/mL of Rg3) exhibited significant lipid-lowering effects in adipocytes during adipogenesis. Moreover, treatment with Rg3 (60 µM) led to the inhibition of triglyceride accumulation, subsequently promoting enhanced fatty acid oxidation, as evidenced by the conversion of radiolabeled 3H-fatty acids into 3H-H2O with mitochondrial activation. Rg3 alleviated the attenuation of browning in lipopolysaccharide (LPS)-treated beige adipocytes and primary brown adipocytes by recovered by uncoupling protein 1 (UCP1) and the oxygen consumption rate compared to the LPS-treated group. These protective effects of Rg3 on inflammation-induced inhibition of beige and BAT-derived thermogenesis were confirmed in vivo by treating with CL316,243 (a beta-adrenergic receptor agonist) and LPS to induce browning and inflammation, respectively. Consistent with the in vitro data, treatment with Rg3 (2.5 mg/kg, 8 weeks) effectively reversed the LPS-induced inhibition of brown adipocyte features in C57BL/6 mice. Our findings confirm that Rg3-rich foods are potential browning agents that counteract chronic inflammation and metabolic complications.


Subject(s)
Adipose Tissue, Brown , Ginsenosides , Lipopolysaccharides , Mitochondria , Panax , Plant Extracts , Thermogenesis , Ginsenosides/pharmacology , Animals , Thermogenesis/drug effects , Panax/chemistry , Mitochondria/metabolism , Mitochondria/drug effects , Mice , Plant Extracts/pharmacology , Adipose Tissue, Brown/drug effects , Adipose Tissue, Brown/metabolism , Adipose Tissue, Beige/metabolism , Adipose Tissue, Beige/drug effects , Mice, Inbred C57BL , Male , Adipogenesis/drug effects
7.
Colloids Surf B Biointerfaces ; 238: 113910, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38640797

ABSTRACT

This study represents an innovative approach to construct multi-functional nanoplatforms for cancer diagnosis and therapy by combining hyaluronic acid (HA) with iron-platinum nanoparticles (FePt NPs). These HA-coated FePt NPs, referred to as FePt@HA NPs, demonstrated remarkable biocompatibility, high absorption, and excellent light-to-heat conversion properties in the near-infrared (NIR) region, making them ideal candidates for photothermal therapy (PTT). In vitro studies revealed their effective cancer cell eradication under NIR laser irradiation, while in vivo experiments on mice showcased their superior heating capabilities. Moreover, FePt@HA NPs exhibited a distinct and strong photoacoustic (PA) signal, facilitating enhanced and precise intra-tumoral PA imaging. Our results highlight the potential of FePt@HA NPs as promising photothermal agents for future PTT applications. They offer high selectivity, precision, and minimal side effects in cancer treatment, along with their valuable PA imaging application for tumor localization and characterization.


Subject(s)
Hyaluronic Acid , Iron , Metal Nanoparticles , Photoacoustic Techniques , Photothermal Therapy , Platinum , Hyaluronic Acid/chemistry , Hyaluronic Acid/pharmacology , Photoacoustic Techniques/methods , Platinum/chemistry , Platinum/pharmacology , Animals , Mice , Iron/chemistry , Humans , Metal Nanoparticles/chemistry , Cell Survival/drug effects , Mice, Inbred BALB C , Particle Size , Surface Properties , Cell Line, Tumor
8.
Hosp Pharm ; 59(2): 173-182, 2024 Apr.
Article in English | MEDLINE | ID: mdl-38450358

ABSTRACT

Background: No previous studies have examined the relationship between stress, anxiety, and depression among pharmacists in Vietnam. Objectives: This study aims to investigate the correlation between stress, anxiety, depression, and job satisfaction among hospital pharmacists in Vietnam. Methods: The study comprised a 12-month cross-sectional survey in Can Tho City, Vietnam, with 11 conveniently selected hospitals. Out of 305 the distributed questionnaires, 303 were completed (99.3% response rate). The 21-item depression, anxiety, and stress scale (DASS-21) assessed stress, anxiety, and depression (21 items), while job satisfaction was measured using a 44-item questionnaire. Results: The study revealed a prevalence of 15.5% for stress, 27.1% for anxiety, and 20.5% for depression among hospital staff. Additionally, the majority of hospital staff (72.9%) reported being satisfied with their job. Those with more than 2 children (95% CI = 1.183-14.519) were nearly 4 times as likely to experience higher stress. Female respondents (95% CI = 1.34-5.92) and those who rented (95% CI = 1.05-3.55) were more likely to encounter anxiety. Those living outside Can Tho City (95% CI = 1.32-9.88) were at a 3.61 times higher risk of depression, while individuals who had been working at the hospital for 5 to 10 years (95% CI = 0.17-0.82) had a lower risk of depression. Increased depression (aOR = 0.441; 95% CI = 0.21-0.94) was linked to job dissatisfaction. Conclusion: Depression was significantly associated with job dissatisfaction. The study findings suggest that management agencies should implement prevention and intervention strategies to reduce mental health issues among hospital pharmacists.

9.
Sci Total Environ ; 926: 172029, 2024 May 20.
Article in English | MEDLINE | ID: mdl-38552988

ABSTRACT

Although Eichhornia crassipes, commonly known as water hyacinth, has been widely used in wastewater treatment, further investigations are still needed to explore the removal efficiency of perfluoroalkyl acids (PFAAs) from the aqueous environment using this floating aquatic plant. In this study, a hydroponic experiment was conducted to assess accumulation, bioconcentration factors (BCFs), translocation factors (TFs), and removal rates of eight PFAAs by water hyacinth. The obtained results indicated that all PFAAs, including five perfluoroalkyl carboxylic acids (PFCAs) with chain lengths C4-C8 and three perfluoroalkyl sulfonic acids (PFSAs) with C4, C6, and C8, were readily accumulated in water hyacinth. Throughout the duration of the experiment, there was a noticeable increase in PFAA concentrations and BCF values for different plant parts. For the root, PFAAs with more carbon numbers showed a higher uptake than the shorter homologues, with PFSAs being more readily accumulated compared to PFCAs with the same carbon number in the molecules. In contrast, the levels of long-chain PFAAs were comparatively lower than those of short-chain substances in the stem and leaf. Notably, PFAAs with less carbon numbers, like PFPeA, PFBA, and PFBS, showed a remarkable translocation from the root to the stem and leaf with TFs >1. For the whole plant, no significant correlation was found between BCFs and organic carbon-water partition coefficients (Koc), octanol-water partition coefficients (Kow), membrane-water distribution coefficients (Dmw), or protein-water distribution coefficients (Dpw). The removal rates of PFAAs ranged from 40.3 to 63.5 % throughout the three weeks of the experiment while the removal efficiencies varied from 48.9 % for PFHxS to 82.6 % for PFPeA in the last week.


Subject(s)
Eichhornia , Fluorocarbons , Water Pollutants, Chemical , Fluorocarbons/analysis , Water Pollutants, Chemical/analysis , Sulfonic Acids , Carboxylic Acids , Carbon
10.
Analyst ; 149(8): 2306-2316, 2024 Apr 15.
Article in English | MEDLINE | ID: mdl-38525647

ABSTRACT

A new method utilizing fluorescent ratiometry is proposed for detecting putrescine and spermidine. The method involves the use of a fluorescent probe comprising a 2D halide perovskite synthesized from octadecylamine-iodine and PbI2via a grinding-sonicating technique, along with a Eu3+-complex. Upon excitation at 290 nm, the probe fluoresces at two distinguishable wavelengths. The addition of putrescine and spermidine significantly decreases the emission of the 2D halide perovskite at 496 nm, while the emission of the Eu3+-complex at 618 nm remains stable. The color changes of the probe depend on the concentration of putrescine and spermidine, and the assay offers linearity over a wide concentration range (30-4000 ng mL-1), a low detection limit (4 ng mL-1 for putrescine, and 7 ng mL-1 for spermidine), and a quick response time. Furthermore, a portable device based on a smartphone can be used to record the color change of the paper test strip using the prepared fluorescent materials. The fluorescence quenching mechanism of the probe is explained as dynamic quenching.

11.
Sci Data ; 11(1): 321, 2024 Mar 28.
Article in English | MEDLINE | ID: mdl-38548727

ABSTRACT

Flexible bronchoscopy has revolutionized respiratory disease diagnosis. It offers direct visualization and detection of airway abnormalities, including lung cancer lesions. Accurate identification of airway lesions during flexible bronchoscopy plays an important role in the lung cancer diagnosis. The application of artificial intelligence (AI) aims to support physicians in recognizing anatomical landmarks and lung cancer lesions within bronchoscopic imagery. This work described the development of BM-BronchoLC, a rich bronchoscopy dataset encompassing 106 lung cancer and 102 non-lung cancer patients. The dataset incorporates detailed localization and categorical annotations for both anatomical landmarks and lesions, meticulously conducted by senior doctors at Bach Mai Hospital, Vietnam. To assess the dataset's quality, we evaluate two prevalent AI backbone models, namely UNet++ and ESFPNet, on the image segmentation and classification tasks with single-task and multi-task learning paradigms. We present BM-BronchoLC as a reference dataset in developing AI models to assist diagnostic accuracy for anatomical landmarks and lung cancer lesions in bronchoscopy data.


Subject(s)
Bronchoscopy , Lung Neoplasms , Humans , Artificial Intelligence , Lung Neoplasms/diagnostic imaging , Thorax/diagnostic imaging , Anatomic Landmarks/diagnostic imaging
12.
Biomimetics (Basel) ; 9(3)2024 Mar 05.
Article in English | MEDLINE | ID: mdl-38534846

ABSTRACT

This paper proposes an autonomous robotic system to prune sweet pepper leaves using semantic segmentation with deep learning and an articulated manipulator. This system involves three main tasks: the perception of crop parts, the detection of pruning position, and the control of the articulated manipulator. A semantic segmentation neural network is employed to recognize the different parts of the sweet pepper plant, which is then used to create 3D point clouds for detecting the pruning position and the manipulator pose. Eventually, a manipulator robot is controlled to prune the crop part. This article provides a detailed description of the three tasks involved in building the sweet pepper pruning system and how to integrate them. In the experiments, we used a robot arm to manipulate the pruning leaf actions within a certain height range and a depth camera to obtain 3D point clouds. The control program was developed in different modules using various programming languages running on the ROS (Robot Operating System).

13.
R Soc Open Sci ; 11(1): 231343, 2024 Jan.
Article in English | MEDLINE | ID: mdl-38298403

ABSTRACT

Today, nanoscrystals are researched and developed very quickly because of their advantages in many areas of life. One of the potential applications is quantum dot-sensitized solar cells. This is a green, clean, environmentally friendly cell, and has been studied by scientists since 2000. In this study, we fabricated photoanodes with Cu2+ ions co-doped into cadmium sulfide (CdS) and cadmium selenide (CdSe) nanoscrystals by successive ionic layer adsorption and reaction, and chemical bath deposition methods to improve absorption spectral intensity of films. The results showed that the absorption intensity increased by eight times compared with our previous results on Cu2+ ions doped with CdSe nanoscrystals. The CdS:Cu2+ film is optimized at 2% doping, the efficiency is 4.6819%, and the current density is 27.3501 mA.cm-2, which is higher when compared with the Cu2+ ion only doped into the CdSe quantum dot (19.915 mA.cm-2). In addition, the composition of the photoanode was determined by surface and cross-sectional field-emission scanning electron microscope images, and the structure of the film was determined by X-ray diffraction, energy-dispersive X-ray spectroscopy mapping and X-ray photoelectron spectroscopy. Finally, the film's optical properties were studied by ultraviolet-visible spectroscopy, photoluminescence spectroscopy and electrochemical properties by electrochemical impedance spectroscopy. The results obtained have been discussed and presented in great detail.

14.
Nat Commun ; 15(1): 1851, 2024 Feb 29.
Article in English | MEDLINE | ID: mdl-38424052

ABSTRACT

Identifying proteins at organelle contact sites, such as mitochondria-associated endoplasmic reticulum membranes (MAM), is essential for understanding vital cellular processes, yet challenging due to their dynamic nature. Here we report "OrthoID", a proteomic method utilizing engineered enzymes, TurboID and APEX2, for the biotinylation (Bt) and adamantylation (Ad) of proteins close to the mitochondria and endoplasmic reticulum (ER), respectively, in conjunction with high-affinity binding pairs, streptavidin-biotin (SA-Bt) and cucurbit[7]uril-adamantane (CB[7]-Ad), for selective orthogonal enrichment of Bt- and Ad-labeled proteins. This approach effectively identifies protein candidates associated with the ER-mitochondria contact, including LRC59, whose roles at the contact site were-to the best of our knowledge-previously unknown, and tracks multiple protein sets undergoing structural and locational changes at MAM during mitophagy. These findings demonstrate that OrthoID could be a powerful proteomics tool for the identification and analysis of spatiotemporal proteins at organelle contact sites and revealing their dynamic behaviors in vital cellular processes.


Subject(s)
Proteome , Proteomics , Proteome/metabolism , Proteomics/methods , Mitochondrial Membranes/metabolism , Mitochondria/metabolism , Endoplasmic Reticulum/metabolism
15.
RSC Adv ; 14(4): 2341-2345, 2024 Jan 10.
Article in English | MEDLINE | ID: mdl-38213964

ABSTRACT

Bis(3-indolyl)methanes (BIMs) are known for their important bioactivities, which include anti-cancer, anti-inflammatory, antibacterial, and antioxidant properties. In this study, we are disclosing a metal catalyst-free synthesis of BIMs in high yields via the alkylation reaction of indoles and alcohols in the presence of lithium tert-butoxide base. Notably, oxygen in air played an important role as an oxidant for the facilitation of this transformation. Interestingly, unactivated aliphatic alcohols could be successfully used as alkylating reagents in the alkylation reactions of indole. Especially, several chemical intermediates detected by GC-MS gave important information about the mechanism insights. This method demonstrated cost and environmental advantages for the development of green processes.

16.
Pediatr Transplant ; 28(1): e14441, 2024 Feb.
Article in English | MEDLINE | ID: mdl-37294691

ABSTRACT

BACKGROUND: ND2 in Ho Chi Minh City is currently the only public center that performs PLT in Southern Vietnam. In 2005, the first PLT was successfully performed, with support from Belgian experts. This study reviews the implementation of PLT at our center and evaluates the results and challenges. METHODS: Implementation of PLT at ND2 required medico-surgical team building and extensive improvement of hospital facilities. Records of 13 transplant recipients from 2005 to 2020 were studied retrospectively. Short- and long-term complications, as well as the survival rates, were reported. RESULTS: The mean follow-up time was 8.3 ± 5.7 years. Surgical complications included one case of hepatic artery thrombosis that was successfully repaired, one case of colon perforation resulting in death from sepsis, and two cases of bile leak that were drained surgically. PTLD was observed in five patients, of whom three died. There were no cases of retransplantation. The 1-year, 5-year, and 10-year patient survival rates were 84.6%, 69.2%, and 69.2%, respectively. There were no cases of complication or death among the donors. CONCLUSION: Living-donor PLT was developed at ND2 for providing a life-saving treatment to children with end-stage liver disease. Early surgical complication rate was low, and the patient survival rate was satisfactory at 1 year. Long-term survival decreased considerably due to PTLD. Future challenges include surgical autonomy and improvement of long-term medical follow-up with a particular emphasis on prevention and management of Epstein-Barr virus-related disease.


Subject(s)
Epstein-Barr Virus Infections , Liver Transplantation , Child , Humans , Liver Transplantation/methods , Living Donors , Epstein-Barr Virus Infections/complications , Retrospective Studies , Vietnam , Herpesvirus 4, Human , Postoperative Complications/etiology
17.
Int J Biol Macromol ; 254(Pt 3): 128066, 2024 Jan.
Article in English | MEDLINE | ID: mdl-37963503

ABSTRACT

Staphylococcus aureus (S. aureus) is an important cause of infections associated with implanted medical devices due to the formation of bacterial biofilm, which can prevent the penetration of drugs, thus posing a serious multi-drug resistance. Methicillin-resistant Staphylococcus aureus (MRSA) is one of them. In order to enhance the biofilm elimination effect of Baicalein (BA), a BA-loaded Tyr/HA/CD-CS nano-delivery system was successfully prepared using ß-cyclodextrin grafted with chitosan (CD-CS), Hyaluronic Acid (HA), and D-Tyrosine (D-Tyr). The Tyr/HA/CD-CS-BA-NPs have a uniform particle size distribution with a particle size of 238.1 ± 3.06 nm and a PDI of 0.130 ± 0.02. The NPs showed an obvious inhibitory effect on planktonic bacteria with a MIC of 12.5 µg/mL. In vivo and in vitro tests showed that the NPs could enhance the elimination effect of BA on the MRSA biofilm. The results of Confocal Laser Scanning Microscopy (CLSM), Live & Dead Kit, and colony count experiments illustrated that Tyr/HA/CD-CS-BA-NPs could enhance the permeability of drugs to the biofilm and improve the ability to kill the biofilm bacteria, which may be an important mechanism to enhance the elimination of the MRSA biofilm. These findings will help develop new, effective medicaments for treating bacterial biofilm infections.


Subject(s)
Chitosan , Methicillin-Resistant Staphylococcus aureus , Staphylococcal Infections , Humans , Staphylococcus aureus , Anti-Bacterial Agents/pharmacology , Chitosan/pharmacology , Hyaluronic Acid/pharmacology , Biofilms , Staphylococcal Infections/drug therapy , Staphylococcal Infections/microbiology , Microbial Sensitivity Tests
18.
Eur Rev Med Pharmacol Sci ; 27(23): 11464-11471, 2023 Dec.
Article in English | MEDLINE | ID: mdl-38095394

ABSTRACT

OBJECTIVE: Acute pancreatitis is one of the most common causes of acute abdominal pain requiring hospitalization worldwide. The neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), and red blood cell distribution width (RDW) are novel inflammatory markers that have been investigated in various diseases associated with an inflammatory response, achieving many positive results. Evaluating the NLR, PLR, RDW, and their combination to predict acute pancreatitis severity can help clinicians have an appropriate initial treatment strategy. PATIENTS AND METHODS: This prospective cohort study enrolled 131 patients diagnosed with acute pancreatitis at Gia Dinh Hospital, Ho Chi Minh City, between December 2021 and August 2022. Patients with the following features were excluded from our study: age < 18 years old, time from symptom onset to admission of > 72 hours; patients with autoimmune disease, decompensated cirrhosis, active tuberculosis, heart failure (New York Heart Association class 4), end-stage renal failure, pregnancy, active severe acute respiratory syndrome coronavirus 2 infection, and chronic pancreatitis. RESULTS: There were 21 severe acute pancreatitis (SAP) cases (16%). The area under the receiver operating characteristic curve for predicting SAP was 0.82 for NLR, 0.72 for PLR, and 0.73 for RDW. When the cutoffs of 13.5 for NLR, 202.7 for PLR, and 13.1% for the RDW were used, the negative predictive values in predicting SAP were 93.1%, 91.9%, and 98.8%, respectively. This finding demonstrates the value of inflammatory markers in predicting SAP. The combination of these markers did not show an advantage in predicting SAP compared to the single markers. CONCLUSIONS: High NLR, PLR, and RDW are associated with SAP. These indices are good indicators for predicting SAP. In our study, the combination of inflammatory markers did not improve SAP prediction compared to the individual markers.


Subject(s)
Erythrocyte Indices , Pancreatitis , Female , Pregnancy , Humans , Adolescent , Pancreatitis/diagnosis , Neutrophils , Prospective Studies , Acute Disease , Retrospective Studies , Lymphocytes , Prognosis
19.
Sci Rep ; 13(1): 22092, 2023 12 13.
Article in English | MEDLINE | ID: mdl-38086845

ABSTRACT

The abnormal expression in the T-type calcium channels is involved in various cancer types, thus inhibiting T-type calcium channels is one of approaches in cancer treatment. The fact that KTt-45 acted as a T-type calcium channel inhibitor as well as a pain-relief agent prompts us to address if KTt-45 plays any role against cancer cells. The results showed that KTt-45 caused cytotoxic effects towards HeLa cervical, Raji lymphoma, MCF-7 breast cancer, and A549 lung cancer cell lines with IC50 values less than 100 µM, in which highly selective toxicity was against HeLa cells (IC50 = 37.4 µM, SI > 3.2). Strikingly, the KTt-45 induced an accumulation of cytoplasmic vacuoles after 48 h treatment and mitochondrial-dependent apoptosis activation as evidenced by morphological features, chromatin condensation, nuclear fragmentation, and significant activation of caspase-9 as well as caspase-3. In conclusion, KTt-45 could inhibit cell growth and trigger mitochondrial-dependent apoptosis in HeLa cervical cancer cells. The results, taken together, strongly demonstrated that KTt-45 is a potential agent for further study on anticancer drug development which not only targets cancer cells but also helps to relieve neuropathic pain in cancer patients.


Subject(s)
Antineoplastic Agents , Calcium Channels, T-Type , Uterine Cervical Neoplasms , Female , Humans , HeLa Cells , Uterine Cervical Neoplasms/pathology , Calcium Channel Blockers/pharmacology , Apoptosis , Antineoplastic Agents/pharmacology , Cell Proliferation
20.
Virol J ; 20(1): 277, 2023 Nov 28.
Article in English | MEDLINE | ID: mdl-38017515

ABSTRACT

BACKGROUND: In a randomized trial, Lianhuaqingwen (LHQW) capsule was effective for accelerating symptom recovery among patients with coronavirus disease 2019 (COVID-19). However, the lack of blinding and limited sample sizes decreased the level of clinical evidence. OBJECTIVES: To evaluate the efficacy and safety of LHQW capsule in adults with mild-to-moderate COVID-19. METHODS: We conducted a double-blind randomized controlled trial in adults with mild-to-moderate COVID-19 (17 sites from China, Thailand, Philippine and Vietnam). Patients received standard-of-care alone or plus LHQW capsules (4 capsules, thrice daily) for 14 days. The primary endpoint was the median time to sustained clinical improvement or resolution of nine major symptoms. RESULTS: The full-analysis set consisted of 410 patients in LHQW capsules and 405 in placebo group. LHQW significantly shortened the primary endpoint in the full-analysis set (4.0 vs. 6.7 days, hazards ratio: 1.63, 95% confidence interval: 1.39-1.90). LHQW capsules shortened the median time to sustained clinical improvement or resolution of stuffy or runny nose (2.8 vs. 3.7 days), sore throat (2.0 vs. 2.6 days), cough (3.2 vs. 4.9 days), feeling hot or feverish (1.0 vs. 1.3 days), low energy or tiredness (1.3 vs. 1.9 days), and myalgia (1.5 vs. 2.0 days). The duration to sustained clinical improvement or resolution of shortness of breath, headache, and chills or shivering did not differ significantly between the two groups. Safety was comparable between the two groups. No serious adverse events were reported. INTERPRETATION: LHQW capsules promote recovery of mild-to-moderate COVID-19 via accelerating symptom resolution and were well tolerated. Trial registration ChiCTR2200056727 .


Subject(s)
COVID-19 , Drugs, Chinese Herbal , Adult , Humans , Double-Blind Method , Drugs, Chinese Herbal/therapeutic use , Treatment Outcome
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