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1.
Mycotoxin Res ; 2024 May 14.
Article in English | MEDLINE | ID: mdl-38743341

ABSTRACT

Ochratoxin A (OTA) is known to be strongly bound to serum albumin, but it remains unknown how albumin affects its metabolism and kinetics. To close this gap, we used a mouse model, where heterozygous albumin deletion reduces serum albumin to concentrations similar to hypoalbuminemic patients and completely eliminates albumin by a homozygous knockout. OTA and its potential metabolites (OTα, 4-OH-OTA, 7'-OH-OTA, OTHQ, OP-OTA, OTB-GSH, OTB-NAC, OTB) were time-dependently analyzed in plasma, bile, and urine by LC-MS/MS and were compared to previously published hepatotoxicity and nephrotoxicity data. Homozygous albumin deletion strongly accelerated plasma clearance as well as biliary and urinary excretion of the parent compound and its hydroxylation products. Decreasing albumin in mice by the heterozygous and even more by the homozygous knockout leads to an increase in the parent compound in urine which corresponded to increased nephrotoxicity. The role of albumin in OTA-induced hepatotoxicity is more complex, since heterozygous but not homozygous nor wild-type mice showed a strong biliary increase in the toxic open lactone OP-OTA. Correspondingly, OTA-induced hepatotoxicity was higher in heterozygous than in wild-type and homozygous animals. We present evidence that albumin-mediated retention of OTA in hepatocytes is required for formation of the toxic OP-OTA, while complete albumin elimination leads to rapid biliary clearance of OTA from hepatocytes with less formation of OP-OTA. In conclusion, albumin has a strong influence on metabolism and toxicity of OTA. In hypoalbuminemia, the parent OTA is associated with increased nephrotoxicity and the open lactone with increased hepatotoxicity.

2.
Neurol Res ; : 1-7, 2024 May 26.
Article in English | MEDLINE | ID: mdl-38797512

ABSTRACT

OBJECTIVE: Investigate the effects of botulinum toxin type A (BoNT-A) combined with physical therapy on functional capacity in children with spastic cerebral palsy (CP). METHODS: Twenty-four children with spastic CP were treated with either BoNT-A and physical therapy or physical therapy alone. RESULTS: Significant differences (p < 0.05) were found after 30 days of treatment for the Berg Scale, Timed Up and Go (TUG) test, Ashworth Scale and Pediatric Evaluation of Disability Inventory (PEDI) and after three months for the Berg Scale, TUG test and PEDI. No significant differences (p > 0.05) were found in the control group. DISCUSSION: BoNT-A combined with physical therapy leads to significant improvements in spasticity and functionality in children with CP within a period of three months from the onset of treatment.

3.
Schizophr Res ; 266: 205-215, 2024 Apr.
Article in English | MEDLINE | ID: mdl-38428118

ABSTRACT

Preventing relapse in schizophrenia improves long-term health outcomes. Repeated episodes of psychotic symptoms shape the trajectory of this illness and can be a detriment to functional recovery. Despite early intervention programs, high relapse rates persist, calling for alternative approaches in relapse prevention. Predicting imminent relapse at an individual level is critical for effective intervention. While clinical profiles are often used to foresee relapse, they lack the specificity and sensitivity needed for timely prediction. Here, we review the use of speech through Natural Language Processing (NLP) to predict a recurrent psychotic episode. Recent advancements in NLP of speech have shown the ability to detect linguistic markers related to thought disorder and other language disruptions within 2-4 weeks preceding a relapse. This approach has shown to be able to capture individual speech patterns, showing promise in its use as a prediction tool. We outline current developments in remote monitoring for psychotic relapses, discuss the challenges and limitations and present the speech-NLP based approach as an alternative to detect relapses with sufficient accuracy, construct validity and lead time to generate clinical actions towards prevention.


Subject(s)
Psychotic Disorders , Schizophrenia , Humans , Speech , Psychotic Disorders/diagnosis , Psychotic Disorders/prevention & control , Schizophrenia/diagnosis , Secondary Prevention , Recurrence , Chronic Disease
4.
Arch Toxicol ; 98(4): 1081-1093, 2024 Apr.
Article in English | MEDLINE | ID: mdl-38436695

ABSTRACT

Large interspecies differences between rats and mice concerning the hepatotoxicity and carcinogenicity of aflatoxin B1 (AFB1) are known, with mice being more resistant. However, a comprehensive interspecies comparison including subcellular liver tissue compartments has not yet been performed. In this study, we performed spatio-temporal intravital analysis of AFB1 kinetics in the livers of anesthetized mice and rats. This was supported by time-dependent analysis of the parent compound as well as metabolites and adducts in blood, urine, and bile of both species by HPLC-MS/MS. The integrated data from intravital imaging and HPLC-MS/MS analysis revealed major interspecies differences between rats and mice: (1) AFB1-associated fluorescence persisted much longer in the nuclei of rat than mouse hepatocytes; (2) in the sinusoidal blood, AFB1-associated fluorescence was rapidly cleared in mice, while a time-dependent increase was observed in rats in the first three hours after injection followed by a plateau that lasted until the end of the observation period of six hours; (3) this coincided with a far stronger increase of AFB1-lysine adducts in the blood of rats compared to mice; (4) the AFB1-guanine adduct was detected at much higher concentrations in bile and urine of rats than mice. In both species, the AFB1-glutathione conjugate was efficiently excreted via bile, where it reached concentrations at least three orders of magnitude higher compared to blood. In conclusion, major differences between mice and rats were observed, concerning the nuclear persistence, formation of AFB1-lysine adducts, and the AFB1-guanine adducts.


Subject(s)
Aflatoxins , Rats , Mice , Animals , Aflatoxins/metabolism , Aflatoxins/toxicity , Lysine/metabolism , Liquid Chromatography-Mass Spectrometry , Tandem Mass Spectrometry , Liver/metabolism , Aflatoxin B1/toxicity , Guanine/metabolism , Intravital Microscopy
5.
Methods Mol Biol ; 2781: 163-170, 2024.
Article in English | MEDLINE | ID: mdl-38502452

ABSTRACT

The immunofluorescence technique has been used to identify pluripotent markers in the human amniotic epithelial cells (hAEC). hAEC belonging to human fetal membranes, specificamently to amnion layer, and are arising by epiblast, this sugest that the hAEC have characteristics of epiblast cells, in other words, characteristcs of pluripotent stem cells. Here we describe obtaining human amnion tissue and identifying pluripotent markers by immunofluorescence.


Subject(s)
Amnion , Pluripotent Stem Cells , Humans , Fluorescent Antibody Technique , Germ Layers , Epithelial Cells
6.
Arch Toxicol ; 98(5): 1533-1542, 2024 May.
Article in English | MEDLINE | ID: mdl-38466352

ABSTRACT

Acetaminophen (APAP) is known to cause a breach of the blood-bile barrier in mice that, via a mechanism called futile bile acid (BA) cycling, increases BA concentrations in hepatocytes above cytotoxic thresholds. Here, we compared this mechanism in mice and rats, because both species differ massively in their susceptibility to APAP and compared the results to available human data. Dose and time-dependent APAP experiments were performed in male C57BL6/N mice and Wistar rats. The time course of BA concentrations in liver tissue and in blood was analyzed by MALDI-MSI and LC-MS/MS. APAP and its derivatives were measured in the blood by LC-MS. APAP-induced liver damage was analyzed by histopathology, immunohistochemistry, and by clinical chemistry. In mice, a transient increase of BA in blood and in peri-central hepatocytes preceded hepatocyte death. The BA increase coincided with oxidative stress in liver tissue and a compromised morphology of bile canaliculi and immunohistochemically visualized tight junction proteins. Rats showed a reduced metabolic activation of APAP compared to mice. However, even at very high doses that caused cell death of hepatocytes, no increase of BA concentrations was observed neither in liver tissue nor in the blood. Correspondingly, no oxidative stress was detectable, and the morphology of bile canaliculi and tight junction proteins remained unaltered. In conclusion, different mechanisms cause cell death in rats and mice, whereby oxidative stress and a breach of the blood-bile barrier are seen only in mice. Since transient cholestasis also occurs in human patients with APAP overdose, mice are a clinically relevant species to study APAP hepatotoxicity but not rats.


Subject(s)
Acetaminophen , Chemical and Drug Induced Liver Injury , Mice , Rats , Humans , Male , Animals , Acetaminophen/toxicity , Acetaminophen/metabolism , Bile/metabolism , Chromatography, Liquid , Chemical and Drug Induced Liver Injury/pathology , Rats, Wistar , Tandem Mass Spectrometry , Liver/metabolism , Hepatocytes/metabolism , Mice, Inbred C57BL , Tight Junction Proteins/metabolism
7.
J Affect Disord ; 352: 536-551, 2024 May 01.
Article in English | MEDLINE | ID: mdl-38382816

ABSTRACT

BACKGROUND: The COVID-19 pandemic has brought significant mental health challenges, particularly for vulnerable populations, including non-binary gender individuals. The COMET international study aimed to investigate specific risk factors for clinical depression or distress during the pandemic, also in these special populations. METHODS: Chi-square tests were used for initial screening to select only those variables which would show an initial significance. Risk Ratios (RR) were calculated, and a Multiple Backward Stepwise Linear Regression Analysis (MBSLRA) was followed with those variables given significant results at screening and with the presence of distress or depression or the lack of both of them. RESULTS: The most important risk factors for depression were female (RR = 1.59-5.49) and non-binary gender (RR = 1.56-7.41), unemployment (RR = 1.41-6.57), not working during lockdowns (RR = 1.43-5.79), bad general health (RR = 2.74-9.98), chronic somatic disorder (RR = 1.22-5.57), history of mental disorders (depression RR = 2.31-9.47; suicide attempt RR = 2.33-9.75; psychosis RR = 2.14-10.08; Bipolar disorder RR = 2.75-12.86), smoking status (RR = 1.15-5.31) and substance use (RR = 1.77-8.01). The risk factors for distress or depression that survived MBSLRA were younger age, being widowed, living alone, bad general health, being a carer, chronic somatic disorder, not working during lockdowns, being single, self-reported history of depression, bipolar disorder, self-harm, suicide attempts and of other mental disorders, smoking, alcohol, and substance use. CONCLUSIONS: Targeted preventive interventions are crucial to safeguard the mental health of vulnerable groups, emphasizing the importance of diverse samples in future research. LIMITATIONS: Online data collection may have resulted in the underrepresentation of certain population groups.


Subject(s)
COVID-19 , Substance-Related Disorders , Humans , Female , Male , COVID-19/epidemiology , Mental Health , Pandemics , Population Groups , Vulnerable Populations , Communicable Disease Control , Substance-Related Disorders/epidemiology , Depression/epidemiology
8.
CNS Spectr ; 29(2): 126-149, 2024 04.
Article in English | MEDLINE | ID: mdl-38269574

ABSTRACT

BACKGROUND: The prevalence of medical illnesses is high among patients with psychiatric disorders. The current study aimed to investigate multi-comorbidity in patients with psychiatric disorders in comparison to the general population. Secondary aims were to investigate factors associated with metabolic syndrome and treatment appropriateness of mental disorders. METHODS: The sample included 54,826 subjects (64.73% females; 34.15% males; 1.11% nonbinary gender) from 40 countries (COMET-G study). The analysis was based on the registration of previous history that could serve as a fair approximation for the lifetime prevalence of various medical conditions. RESULTS: About 24.5% reported a history of somatic and 26.14% of mental disorders. Mental disorders were by far the most prevalent group of medical conditions. Comorbidity of any somatic with any mental disorder was reported by 8.21%. One-third to almost two-thirds of somatic patients were also suffering from a mental disorder depending on the severity and multicomorbidity. Bipolar and psychotic patients and to a lesser extent depressives, manifested an earlier (15-20 years) manifestation of somatic multicomorbidity, severe disability, and probably earlier death. The overwhelming majority of patients with mental disorders were not receiving treatment or were being treated in a way that was not recommended. Antipsychotics and antidepressants were not related to the development of metabolic syndrome. CONCLUSIONS: The finding that one-third to almost two-thirds of somatic patients also suffered from a mental disorder strongly suggests that psychiatry is the field with the most trans-specialty and interdisciplinary value and application points to the importance of teaching psychiatry and mental health in medical schools and also to the need for more technocratically oriented training of psychiatric residents.


Subject(s)
Antipsychotic Agents , Mental Disorders , Metabolic Syndrome , Male , Female , Humans , Metabolic Syndrome/epidemiology , Metabolic Syndrome/drug therapy , Mental Disorders/epidemiology , Mental Disorders/drug therapy , Antipsychotic Agents/therapeutic use , Mental Health , Comorbidity
9.
Gait Posture ; 109: 70-77, 2024 03.
Article in English | MEDLINE | ID: mdl-38281432

ABSTRACT

BACKGROUND: Conventional balance and gait assessments for fall risk screening are often conducted under unperturbed conditions. However, older adults can allocate their attention to motor tasks (balance or walking) without revealing performance deficiencies, posing a challenge in identifying those with compromised gait and balance. RESEARCH QUESTIONS: Do community-dwelling older adults exhibit greater changes in cognitive and/or walking performance under balance-challenging conditions compared to typical dual-task walking conditions? METHODS: Twenty-nine healthy, community-dwelling older adults performed four cognitive tasks (visual and auditory Stroop tasks, Clock task, and Paced Auditory Serial Addition Test) while walking with and without lateral treadmill sways (Perturbed vs. Unperturbed) and during standing. We calculated dual-task costs (DTC) and walking perturbation effects (WPE) as the percentage of change in cognitive and walking performance between dual and single-task conditions and between Perturbed and Unperturbed conditions, respectively. RESULTS: Older adults exhibited similar DTC and WPE on cognitive task performance. However, in walking performance, they demonstrated significantly greater WPE than DTC across all gait and stability measures (p < 0.01), including the mean and variability of stride and margins of stability (MOS) measures, the variability of trunk movement and lower-limb joint angles, and the local stability measures. Older adults took shorter but wider steps, exhibited shorter MOSAP but greater MOSML, and experienced increased movement variability and walking instability to a greater extent than during dual-task walking. Overall, changes in variability and stability measures were more pronounced than those in mean gait measures. SIGNIFICANCE: Introducing destabilizing perturbations to increase the task demands of balance and gait assessments is a more effective method to challenge older adults compared to simply adding a concurrent cognitive task. Fall screening assessments for community-dwelling older adults should incorporate balance-challenging conditions, such as introducing gait perturbations.


Subject(s)
Cognition , Walking , Humans , Aged , Gait , Task Performance and Analysis , Movement
10.
J Hepatol ; 80(2): 268-281, 2024 Feb.
Article in English | MEDLINE | ID: mdl-37939855

ABSTRACT

BACKGROUND & AIMS: Cholemic nephropathy (CN) is a severe complication of cholestatic liver diseases for which there is no specific treatment. We revisited its pathophysiology with the aim of identifying novel therapeutic strategies. METHODS: Cholestasis was induced by bile duct ligation (BDL) in mice. Bile flux in kidneys and livers was visualized by intravital imaging, supported by MALDI mass spectrometry imaging and liquid chromatography-tandem mass spectrometry. The effect of AS0369, a systemically bioavailable apical sodium-dependent bile acid transporter (ASBT) inhibitor, was evaluated by intravital imaging, RNA-sequencing, histological, blood, and urine analyses. Translational relevance was assessed in kidney biopsies from patients with CN, mice with a humanized bile acid (BA) spectrum, and via analysis of serum BAs and KIM-1 (kidney injury molecule 1) in patients with liver disease and hyperbilirubinemia. RESULTS: Proximal tubular epithelial cells (TECs) reabsorbed and enriched BAs, leading to oxidative stress and death of proximal TECs, casts in distal tubules and collecting ducts, peritubular capillary leakiness, and glomerular cysts. Renal ASBT inhibition by AS0369 blocked BA uptake into TECs and prevented kidney injury up to 6 weeks after BDL. Similar results were obtained in mice with humanized BA composition. In patients with advanced liver disease, serum BAs were the main determinant of KIM-1 levels. ASBT expression in TECs was preserved in biopsies from patients with CN, further highlighting the translational potential of targeting ASBT to treat CN. CONCLUSIONS: BA enrichment in proximal TECs followed by oxidative stress and cell death is a key early event in CN. Inhibiting renal ASBT and consequently BA enrichment in TECs prevents CN and systemically decreases BA concentrations. IMPACT AND IMPLICATIONS: Cholemic nephropathy (CN) is a severe complication of cholestasis and an unmet clinical need. We demonstrate that CN is triggered by the renal accumulation of bile acids (BAs) that are considerably increased in the systemic blood. Specifically, the proximal tubular epithelial cells of the kidney take up BAs via the apical sodium-dependent bile acid transporter (ASBT). We developed a therapeutic compound that blocks ASBT in the kidneys, prevents BA overload in tubular epithelial cells, and almost completely abolished all disease hallmarks in a CN mouse model. Renal ASBT inhibition represents a potential therapeutic strategy for patients with CN.


Subject(s)
Carrier Proteins , Cholestasis , Kidney Diseases , Liver Diseases , Membrane Glycoproteins , Organic Anion Transporters, Sodium-Dependent , Symporters , Humans , Mice , Animals , Cholestasis/complications , Cholestasis/metabolism , Kidney/metabolism , Symporters/metabolism , Bile Acids and Salts/metabolism , Liver/metabolism , Bile Ducts/metabolism , Liver Diseases/metabolism , Sodium
11.
Front Pharmacol ; 14: 1279357, 2023.
Article in English | MEDLINE | ID: mdl-38053838

ABSTRACT

Rationale: Liver cirrhosis is known to affect drug pharmacokinetics, but the functional assessment of the underlying pathophysiological alterations in drug metabolism is difficult. Methods: Cirrhosis in mice was induced by repeated treatment with carbon tetrachloride for 12 months. A cocktail of six drugs was administered, and parent compounds as well as phase I and II metabolites were quantified in blood, bile, and urine in a time-dependent manner. Pharmacokinetics were modeled in relation to the altered expression of metabolizing enzymes. In discrepancy with computational predictions, a strong increase of glucuronides in blood was observed in cirrhotic mice compared to vehicle controls. Results: The deviation between experimental findings and computational simulations observed by analyzing different hypotheses could be explained by increased sinusoidal export and corresponded to increased expression of export carriers (Abcc3 and Abcc4). Formation of phase I metabolites and clearance of the parent compounds were surprisingly robust in cirrhosis, although the phase I enzymes critical for the metabolism of the administered drugs in healthy mice, Cyp1a2 and Cyp2c29, were downregulated in cirrhotic livers. RNA-sequencing revealed the upregulation of numerous other phase I metabolizing enzymes which may compensate for the lost CYP isoenzymes. Comparison of genome-wide data of cirrhotic mouse and human liver tissue revealed similar features of expression changes, including increased sinusoidal export and reduced uptake carriers. Conclusion: Liver cirrhosis leads to increased blood concentrations of glucuronides because of increased export from hepatocytes into the sinusoidal blood. Although individual metabolic pathways are massively altered in cirrhosis, the overall clearance of the parent compounds was relatively robust due to compensatory mechanisms.

12.
Podium (Pinar Río) ; 18(3)dic. 2023.
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1521337

ABSTRACT

El estudio se enmarca en la competencia percibida por propios profesores de Educación Física para la inclusión de escolares primarios con discapacidad física. Se formuló como objetivo analizar la competencia percibida por profesores de Educación Física para la inclusión de escolares primarios con discapacidad física, en dos municipios de la región central de Cuba. Los datos provienen de un cuestionario cumplimentado por 40 profesores de Educación Física de dos municipios de la Región central cubana (divididos en dos grupos de 20). Se utilizaron métodos teóricos como el analítico-sintético y el inductivo-deductivo; y empíricos como la entrevista, la observación y la encuesta; del nivel matemático y/o estadístico, la distribución empírica de frecuencia. El resultado de la investigación reflejó la descripción de la autopercepción de los profesores de ambas poblaciones, en las tres dimensiones, con resultados más favorables para el municipio de Cabaiguán. La autopercepción más favorable de los profesores del municipio de Cabaiguán, para realizar adaptaciones específicas, emitir instrucción a los iguales y seguridad en el proceso de inclusión de escolares con discapacidad en la clase de Educación Física.


O estudo enquadra-se na competência percebida pelos próprios professores de Educação Física para a inclusão de alunos do ensino fundamental com deficiência física. O objetivo foi formulado para analisar a competência percebida pelos professores de Educação Física para a inclusão de alunos do ensino fundamental com deficiência física, em dois municípios da região central de Cuba. Os dados provêm de um questionário respondido por 40 professores de Educação Física de dois municípios da região central de Cuba (divididos em dois grupos de 20). Foram utilizados métodos teóricos como analítico-sintético e indutivo-dedutivo; e empíricos, como entrevistas, observações e pesquisas; do nível matemático e/ou estatístico, a distribuição de frequência empírica. O resultado da pesquisa refletiu a descrição da autopercepção dos professores de ambas as populações, nas três dimensões, com resultados mais favoráveis para o município de Cabaiguán. A autopercepção mais favorável dos professores do município de Cabaiguán, para fazer adaptações específicas, dar instrução aos pares e segurança no processo de inclusão de alunos com deficiência nas aulas de Educação Física.


The study is part of the competence perceived by Physical Education teachers themselves for the inclusion of primary schoolchildren with physical disabilities. The objective was to analyze the competence perceived by Physical Education teachers for the inclusion of primary schoolchildren with physical disabilities, in two municipalities in the central region of Cuba. The data come from a questionnaire completed by 40 Physical Education teachers from two municipalities in the Cuban central region (divided into two groups of 20). Theoretical methods such as the analytical-synthetic and the inductive-deductive were used; as empirical ones the interview, the observation and the survey were used; and from the mathematical and/or statistical level, the empirical frequency distribution was used. The result of the research reflected the description of the self-perception of the teachers of both populations, in the three dimensions, with more favorable results for the municipality of Cabaiguán. The most favorable self-perception of teachers in the municipality of Cabaiguán, to make specific adaptations, issue instruction to equals and security in the process of inclusion of schoolchildren with disabilities in Physical Education class.

13.
Biol Sex Differ ; 14(1): 77, 2023 11 02.
Article in English | MEDLINE | ID: mdl-37919790

ABSTRACT

BACKGROUND: The prairie vole (Microtus ochrogaster) is a socially monogamous rodent that establishes an enduring pair bond after cohabitation, with (6 h) or without (24 h) mating. Previously, we reported that social interaction and mating increased cell proliferation and differentiation to neuronal fate in neurogenic niches in male voles. We hypothesized that neurogenesis may be a neural plasticity mechanism involved in mating-induced pair bond formation. Here, we evaluated the differentiation potential of neural progenitor cells (NPCs) isolated from the subventricular zone (SVZ) of both female and male adult voles as a function of sociosexual experience. Animals were assigned to one of the following groups: (1) control (Co), sexually naive female and male voles that had no contact with another vole of the opposite sex; (2) social exposure (SE), males and females exposed to olfactory, auditory, and visual stimuli from a vole of the opposite sex, but without physical contact; and (3) social cohabitation with mating (SCM), male and female voles copulating to induce pair bonding formation. Subsequently, the NPCs were isolated from the SVZ, maintained, and supplemented with growth factors to form neurospheres in vitro. RESULTS: Notably, we detected in SE and SCM voles, a higher proliferation of neurosphere-derived Nestin + cells, as well as an increase in mature neurons (MAP2 +) and a decrease in glial (GFAP +) differentiated cells with some sex differences. These data suggest that when voles are exposed to sociosexual experiences that induce pair bonding, undifferentiated cells of the SVZ acquire a commitment to a neuronal lineage, and the determined potential of the neurosphere is conserved despite adaptations under in vitro conditions. Finally, we repeated the culture to obtain neurospheres under treatments with different hormones and factors (brain-derived neurotrophic factor, estradiol, prolactin, oxytocin, and progesterone); the ability of SVZ-isolated cells to generate neurospheres and differentiate in vitro into neurons or glial lineages in response to hormones or factors is also dependent on sex and sociosexual context. CONCLUSION: Social interactions that promote pair bonding in voles change the properties of cells isolated from the SVZ. Thus, SE or SCM induces a bias in the differentiation potential in both sexes, while SE is sufficient to promote proliferation in SVZ-isolated cells from male brains. In females, proliferation increases when mating is performed. The next question is whether the rise in proliferation and neurogenesis of cells from the SVZ are plastic processes essential for establishing, enhancing, maintaining, or accelerating pair bond formation. Highlights 1. Sociosexual experiences that promote pair bonding (social exposure and social cohabitation with mating) induce changes in the properties of neural stem/progenitor cells isolated from the SVZ in adult prairie voles. 2. Social interactions lead to increased proliferation and induce a bias in the differentiation potential of SVZ-isolated cells in both male and female voles. 3. The differentiation potential of SVZ-isolated cells is conserved under in vitro conditions, suggesting a commitment to a neuronal lineage under a sociosexual context. 4. Hormonal and growth factors treatments (brain-derived neurotrophic factor, estradiol, prolactin, oxytocin, and progesterone) affect the generation and differentiation of neurospheres, with dependencies on sex and sociosexual context. 5. Proliferation and neurogenesis in the SVZ may play a crucial role in establishing, enhancing, maintaining, or accelerating pair bond formation.


In this study, researchers evaluated whether social interactions and copulation induce changes in the proliferation and differentiation of neural progenitor cells in adult male and female voles using an in vitro neurosphere formation assay. The following groups were assigned: control animals without any exposure to another vole outside their litter, another group with social exposure consisting of sensory exposure to a vole of the opposite sex and a third group with social cohabitation and copulation. Forty eight hours after social interactions, cells were isolated from the neurogenic niche subventricular zone (SVZ) and cultured to assess their self-renewal and proliferation abilities to form neurospheres. The results showed in the social interaction groups, a greater number and growth of neurospheres in both males and females. Differentiation capacity was assessed by immunodetection of MAP2 and GFAP to identify neurons or glia, respectively, arise from neurospheres, with an increase in neuronal fate in groups with social interaction. In the second part of the study, the researchers analyzed the effect of different hormone and growth factor treatments and found that the response in both proliferation and differentiation potential may vary depending on the sociosexual context or sex. This study suggests that social interactions leading to pair bond formation alter the properties of SVZ cells, whereby proliferation and neurogenesis may have an impact on the establishment and maintenance of pair bonding.


Subject(s)
Neural Stem Cells , Sex Characteristics , Animals , Female , Male , Brain-Derived Neurotrophic Factor/metabolism , Oxytocin/metabolism , Grassland , Prolactin/metabolism , Progesterone , Neurons/metabolism , Brain/metabolism , Neural Stem Cells/metabolism , Arvicolinae/metabolism , Cell Proliferation , Estradiol/metabolism , DNA-Binding Proteins/metabolism
14.
Animals (Basel) ; 13(22)2023 Nov 12.
Article in English | MEDLINE | ID: mdl-38003109

ABSTRACT

Intrapartum asphyxia, fetal hypoxia, and their consequences (e.g., acidosis, hypercapnia, hypoglycemia, and hypothermia) are the main factors related to physio-metabolic imbalances that increase neonatal mortality in piglets, particularly in piglets with low birthweight and low vitality scores. This study aimed to evaluate the effect of three different doses of caffeine (10, 20, and 30 mg/kg) administered orally to 480 newborn piglets with low birthweight and low vitality scores. Blood gas parameters (pH, pO2, pCO2, and HCO3-), physio-metabolic profile (Ca++, glucose, and lactate), and the thermal response assessed through infrared thermography in four thermal windows (ocular, auricular, snout, and hindlimb) and rectal temperature were evaluated during the first 24 h of life. Doses of 30 mg/kg resulted in significant differences at 24 h for all evaluated parameters, suggesting that caffeine administration improved the cardiorespiratory function and metabolic activity of piglets by reducing acidosis, restoring glycemia, and increasing surface and rectal temperature. In conclusion, caffeine at 30 mg/kg could be suggested as an appropriate dose to use in piglets with low birthweight and low vitality scores. Future research might need to study the presentation of adverse effects due to higher caffeine concentrations.

15.
Obstet Gynecol ; 142(6): 1373-1394, 2023 Dec 01.
Article in English | MEDLINE | ID: mdl-37944141

ABSTRACT

OBJECTIVE: To compare surgical efficacy outcomes and complications after laparoscopic hysterectomy and vaginal hysterectomy performed for benign gynecologic conditions. DATA SOURCES: We performed an online search in major databases, including PubMed, Scopus, Web of Science, ClinicalTrials.gov , and the Cochrane Library from 2000 until February 28, 2023. METHODS OF STUDY SELECTION: We searched for randomized controlled trials (RCTs) that compared vaginal hysterectomy with laparoscopic hysterectomy in benign gynecologic conditions. We located 3,249 articles. After reviewing titles and abstracts, we identified 32 articles that were eligible for full-text screening. We excluded nine articles as not-RCT or not comparing vaginal hysterectomy with laparoscopic hysterectomy. Twenty-three articles were included in the final systematic review, with 22 articles included in the meta-analysis. TABULATION, INTEGRATION, AND RESULTS: Twenty-three eligible RCTs included a total population of 2,408, with 1,105 in the vaginal hysterectomy group and 1,303 in the laparoscopic hysterectomy group. Blood loss and postoperative urinary tract infection rates were lower in the vaginal hysterectomy group than in the laparoscopic hysterectomy group (mean difference -68, 95% CI -104.29 to -31.7, P <.01, I2 =95% and odds ratio 1.73, 95% CI 0.92-3.26, P =.03, I2 =0%, respectively). Vaginal hysterectomy was associated with less total operative time, less recovery time, and greater postoperative pain on the day of surgery. Other complications, including conversion to laparotomy, visceral organ damage, or wound dehiscence, were uncommon. Because of insufficient data, we were not able to stratify by surgical indication. CONCLUSION: Vaginal hysterectomy had a shorter total operative time and recovery time but greater postoperative pain on day of surgery compared with laparoscopic hysterectomy. SYSTEMATIC REVIEW REGISTRATION: PROSPERO, CRD42023338538.


Subject(s)
Genital Diseases, Female , Laparoscopy , Humans , Female , Hysterectomy, Vaginal/adverse effects , Hysterectomy, Vaginal/methods , Laparoscopy/adverse effects , Laparoscopy/methods , Hysterectomy/adverse effects , Hysterectomy/methods , Postoperative Complications/epidemiology , Postoperative Complications/etiology , Postoperative Complications/surgery , Pain, Postoperative/etiology , Genital Diseases, Female/surgery
16.
Bol. latinoam. Caribe plantas med. aromát ; 22(6): 770-795, nov. 2023. tab
Article in English | LILACS | ID: biblio-1554221

ABSTRACT

This review focuses on plant species traditionally used in Rio Grande do Sul, Santa Catarina and Paraná states (southern Brazil) for the relief of digestive disorders. Fifty ethnobotanical studies were compiled, resulting in 384 species mentioned, of which those cited in common to every state were selected. The search retrieved 63 native species used to alleviate gastrointestinal disorders, distributed in 21 botanical fa milies, mainly Asteraceae, Lamiaceae and Myrtaceae. The most cited species include Achyrocline satureioides (82%), Eugenia uniflora (70%), Baccharis crispa (46%), Psidium cattleyanum (36%), Solanum paniculatum (36%) and Monteverdia ilicifolia (34%). Scient ific studies have corroborated their popular use for the relief the gastrointestinal disorders, but most of them are preclinical and mainly exploratory. In conclusion, the folk use of medicinal species with therapeutic purposes is widespread in southern Br azil, but further studies are needed to guarantee their efficacy and safety.


Esta revisión presenta especies de plantas utilizadas en Rio Gra nde do Sul, Santa Catarina y Paraná (Sur de Brasil) con enfoque en el alivio de los trastornos digestivos. Se recopilaron 50 estudios etnobotánicos en los que se mencionaron un total de 384 especies, siendo seleccionadas las especies en común a todos los e stados. La búsqueda recuperó 63 especies nativas citadas como utilizadas para aliviar trastornos gastrointestinales, distribuidas en 21 familias botánicas, principalmente Asteraceae, Lamiaceae y Myrtaceae. Las especies con mayor frecuencia de citación fuer on: Achyrocline satureioides (82%), Eugenia uniflora (70%), Baccharis crispa (46%), Psidium cattleyanum (36%), Solanum paniculatum (36%) y Monteverdia ilicifolia (34%). Los estudios científicos han corroborado el uso de especies para el alivio de los trast ornos gastrointestinales, pero la mayoría de ellos son preclínicos y principalmente exploratorios. En conclusión, el uso popular de especies medicinales con fines digestivos está muy extendido en el sur de Brasil, pero aún se necesitan estudios científicos para garantizar la eficacia y seguridad de estas plantas.


Subject(s)
Plants, Medicinal/drug effects , Digestive System Diseases/drug therapy , Brazil , Ethnobotany , Medicine, Traditional
17.
Animals (Basel) ; 13(19)2023 Oct 05.
Article in English | MEDLINE | ID: mdl-37835709

ABSTRACT

Water buffaloes have morphological and behavioral characteristics for efficient thermoregulation. However, their health, welfare, and productive performance can be affected by GW. The objective of this review was to analyze the adverse effects of GW on the productive behavior and health of water buffaloes. The physiological, morphological, and behavioral characteristics of the species were discussed to understand the impact of climate change and extreme meteorological events on buffaloes' thermoregulation. In addition, management strategies in buffalo farms, as well as the use of infrared thermography as a method to recognize heat stress in water buffaloes, were addressed. We concluded that heat stress causes a change in energy mobilization to restore animal homeostasis. Preventing hyperthermia limits the physiological, endocrine, and behavioral changes so that they return to thermoneutrality. The use of fans, sprinklers, foggers, and natural sources of water are appropriate additions to current buffalo facilities, and infrared thermography could be used to monitor the thermal states of water buffaloes.

18.
Bioorg Med Chem Lett ; 96: 129498, 2023 11 15.
Article in English | MEDLINE | ID: mdl-37804994

ABSTRACT

Neurodegenerative disease is a debilitating and incurable condition that affects millions of people around the world. The loss of functions or malfunctions of neural cells are the causes of mortality. A proteosome inhibitor, MG132, is well known to cause neurodegeneration in vitro when model neuronal-derived cell lines are exposed to it. Niclosamide, an anthelmintic drug, which has been used to treat tapeworm infections for more than 50 years, has recently attracted renewed attention in drug repurposing because it has been found to be a good candidate in many drug development screenings. We recently found that all markers of MG132-induced neuronal cell toxicity, including the accumulation of ubiquitinated proteins, were prevented by the presence of niclosamide. In addition, niclosamide was shown to enhance autophagy induced by MG132. There results suggested that niclosamide could act as a neuroprotective agent. In the present study, niclosamide derivatives were synthesized, and the structure-activity relationship (SAR) were determined with respect to protein ubiquitination induced by MG132 and effect on cell survival signaling pathways for neuroprotective function. Our results indicate that phenol OH plays a significant role in neuroprotective activity while the niclosamide derivatives without Cl (5- or 2'-Cl) showed almost the same neuroprotective effect. 4'-NO2 can be replaced by N3 or CF3 whereas NH2 significantly decreased activity. These findings provide guidance for the development of new niclosamide analogues against neurodegenerative diseases including Parkinson's disease.


Subject(s)
Neuroblastoma , Neurodegenerative Diseases , Neuroprotective Agents , Humans , Niclosamide/pharmacology , Neurodegenerative Diseases/drug therapy , Cell Line, Tumor , Neuroblastoma/drug therapy , Neuroprotective Agents/pharmacology , Structure-Activity Relationship , Apoptosis
19.
Animals (Basel) ; 13(20)2023 Oct 20.
Article in English | MEDLINE | ID: mdl-37893998

ABSTRACT

Transport is a stressor that can cause physiological and metabolic imbalances in livestock, resulting in stress-induced hyperthermia. In water buffaloes, studies regarding the thermal state of animals during mobilization are scarce. Therefore, this study aimed to compare the thermal response of 1516 water buffaloes using infrared thermography (IRT) during 15 short trips (783 animals, 60,291 records, average duration = 50.33 min ± 5.48 min) and 14 long trips (733 animals, 56,441 records, average duration = 13.31 h ± 47.32 min). The surface temperature was assessed in 11 regions (periocular, lacrimal caruncle, nasal, lower eyelid, auricular, frontal-parietal, pelvic limb, torso, abdominal, lumbar, and thoracic) during seven phases from pasture to post-transport. It was found that the surface temperature of the periocular, lacrimal caruncle, nasal, auricular, frontal-parietal, pelvic limb, torso, abdominal, lumbar, and thoracic regions was significantly higher during SJs (+3 °C) when compared to LJs (p < 0.0001). In particular, the frontal-parietal region had a significant increase of 10 °C during the post-transport phase (p < 0.0001) in both groups, recording the highest temperatures during this phase. Likewise, a strong positive significant correlation between the different regions was found (r = 0.90, p < 0.0001). It is worth mentioning that the herding, loading, pre-, and post-transport phases were the ones where the greatest thermal response was recorded, possibly due to the influence of human interaction. Finally, a strong positive correlation (r above 0.9, p > 0.001) between the periocular, lacrimal caruncle, pinna, and pelvic limb was found. According to the results, SJ could be considered a stressful event that hinders thermal generation, contrarily to LJ.

20.
Cells ; 12(18)2023 09 21.
Article in English | MEDLINE | ID: mdl-37759553

ABSTRACT

Metabolic Dysfunction Associated Steatotic Liver Disease (MASLD) is the most common chronic liver disease in Western countries. It is becoming increasingly evident that peripheral organ-centered inflammatory diseases, including liver diseases, are linked with brain dysfunctions. Therefore, this study aims to unravel the effect of MASLD on brain histology, cognitive functions, and neurotransmitters. For this purpose, mice fed for 48 weeks on standard (SD) or Western diet (WD) were evaluated by behavioral tests, followed by sacrifice and analysis of the liver-brain axis including histopathology, immunohistochemistry, and biochemical analyses. Histological analysis of the liver showed features of Metabolic Dysfunction-Associated Steatohepatitis (MASH) in the WD-fed mice including lipid droplet accumulation, inflammation, and fibrosis. This was accompanied by an elevation of transaminase and alkaline phosphatase activities, increase in inflammatory cytokine and bile acid concentrations, as well as altered amino acid concentrations in the blood. Interestingly, compromised blood capillary morphology coupled with astrogliosis and microgliosis were observed in brain hippocampus of the WD mice, indicating neuroinflammation or a disrupted neurovascular unit. Moreover, attention was impaired in WD-fed mice along with the observations of impaired motor activity and balance, enhanced anxiety, and stereotyped head-twitch response (HTR) behaviors. Analysis of neurotransmitters and modulators including dopamine, serotonin, GABA, glutamate, and acetylcholine showed region-specific dysregulation in the brain of the WD-fed mice. In conclusion, the induction of MASH in mice is accompanied by the alteration of cellular morphology and neurotransmitter expression in the brain, associated with compromised cognitive functions.


Subject(s)
Diet, Western , Fatty Liver , Animals , Mice , Diet, Western/adverse effects , Cognition , Brain
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