Background: In line with the so-called “embodiment concept”, human bodily experience is characterized by the immediate feeling that our body is localized in a certain position in space and that the self is localized within these body limits.
Aim: To verify in a cohort of patients affected by unilateral spatial neglect (NSU) secondary to cerebrovascular damage the possible correlation between a comprehensive neuromotor/neuropsychological rehabilitative treatment and the modification of body representation.
Setting: A rehabilitation institute for the treatment of neurological gait disorders and neuropsychological failures.
Methods: 12 patients (7 males, 5 females; mean age 60 ± 2yy) affected by NSU secondary to cerebral stroke and recovered in the Neurological Rehabilitation Section of the Clinical Institute Città di Brescia were recruited for the aim of this study. In accordance with our inclusion criteria we recruited 4 patients affected by ischemic stroke and 8 patients affected by haemorragic stroke; 9 patients of our study group arrived from a coma state period. Recruited patients underwent at time T0 (hospitalization day) to a functional impairment evaluation (Motricity Index = MI; Trunk Control Test = TCT; Functional Ambulation Category = FAC) and to a neuropsychological evaluation (Behavioural Inattention Test = BIT; Representional drawing; Personal Neglect evaluation scale); each evaluation was repeated in the same way at time T1 (intertime between 2 and 4 months after hospitalization) and time T2 (inter time between 5 and 6 months after hospitalization). At time T0 each patient began an individualized integrated (motor and neuropsychological) rehabilitative treatment course.
Results: In all patients recruited a statistical significant modification was observed for the MI LL left, the TCT and the FAC; no significant statistical modification was observed for the MI UL left, the MI UL and the MI LL right. The t-test showed a significant statistical modification of the personal neglect evaluation scale while no significant statistical modification was defined for the spontaneous human figure drawing test proceeding from time T0 to time T1. The spontaneous drawing of the human figure showed an individual different trend and modification in all patients recruited. A correlation analysis was made comparing the mean value of all motor scales (G1) with the mean value of all neuropsychological scales (G2) and no statistical significant correlation was observed between G1 (T0) and G1 (T1), G1 (T0) and G2 (T0), G1 (T0) and G2 (T1), G2 (T0) and G1 (T1), G2 (T0) and G2 (T1), G1 (T1) and G2 (T1). A second correlation analysis was made comparing all single motor scales with the neuropsychological scales, for the group made by 12 patients and the group made by 5 patients. For the group made by 12 patients, we observed the subsequently significant correlations: MI UL left (T0) correlates with MI LL left (T0); MI LL left (T0) correlates with MI LL left (T1); MI UL left (T1) correlates with MI LL left (T1); MI LL left (T1) correlates with FAC (T1); TCT (T1) correlates with FAC (T1). For the group made by 5 patients, we observed the subsequently significant correlation: TCT (T2) correlates with FAC (T2). In the group made by 12 patients, the mean amelioration of the time related normalized (T0-T1) motor scales is equal to 49% while to 63% was observed for the neuropsychological scales. The mean amelioration of the neuropsychological scale proceeding from time T0 to T1 is equal to 26% with an increase equal to 57% proceeding from time T1 to T2. The neurocognitive amelioration can be observed especially between the 5th and 6th month from the ischemic cerebral damage with a mean increase from 26% to 57%.
Conclusions: It would certainly make sense to treat patients with NSU from the neuropsychological point of view in the long term and from the neuro-motor point of view in the first 3-4 months after stroke; in all this, we cannot exclude that an improvement of the visuo-spatial exploration, emphasized by the neuropsychological treatment, can positively influence also patient’s motor outcome.
The aging of stones in response to climate change and the carbon lifeform environment is a fascinating topic that highlights the resilience and adaptability of geological structures to the ever-changing conditions of our planet. Stones, as foundational components of the Earth's crust, undergo a complex process of weathering, erosion, and transformation in the face of environmental challenges such as climate change and the presence of carbon-based lifeforms. In this essay, we will explore the key characteristics of how stones age in response to these factors and the implications for climate resilience.
Jamila M Machano, Abdul AJ Mohamed* and Said S Bakar
Published on: 29th August, 2024
This research focused on assessing the levels of selected metal contamination in seven different rice brands (Jasmine, Basmati, Mapembe, Morogoro, Shinyanga, Mbeya, and Cheju). Cheju rice was obtained from local producers from the Cheju area in Zanzibar, while the remaining rice brands namely, Jasmine, Basmati, Mapembe, Morogoro, Shinyanga, and Mbeya were randomly taken from local markets at Darajani and Mwanakwerekwe in Zanzibar. Samples were prepared in accordance with applicable Safe Operating Procedures (SOPs) and laboratory SOPs using information provided by field sample preparation. The samples were ground to fineness and an aliquot of about 10.0 g was measured on the beam balance and mounted on the sample holders for laboratory analysis. An Energy Dispersive X-Ray Fluorescence (EDXRF) technique with a Rigaku NEX CG EDXRF model spectrometer was used for metal analysis. The study revealed that the percentage of metal contamination varied considerably from one rice brand to another, with Basmati and Jasmine rice each exhibiting a contamination level of 50%, while Shinyanga, Mbeya, Mapembe, and Cheju rice showed a level of 25% each. Notably, Morogoro rice had no observable heavy metal contamination. Additionally, a significant positive correlation was observed between several metal pairs: Au and Cr (r² = 1.00), Au and Ti (r² = 0.613), Cr and Ti (r² = 0.613), Ni and Pb (r² = 0.748), Ni and Hf (r² = 0.660), Pb and Hf (r² = 0.656), and Ti and Sn (r² = 0.671). The individual occurrence (percentage) for metals across all rice brands were as follows: 71.42% for Sn, and 28.57% for Hf, Ni, Pb, and Ti, while traces of Au, Cr, and Y each had an occurrence level of 14.28%. While Morogoro rice showed no metal discernible analyzed heavy metal contamination, the other rice brands were observed to have a considerable heavy metal contamination trend. The patterns of metal occurrence in each rice brand were observed as follows: Basmati: Sn > Ti > Au > Cr; Jasmine: Sn > Hf > Ni > Pb; Shinyanga: Sn > Pb; Mbeya: Sn > Hf; Mapembe: Sn > Ti; Cheju: Ni > Y. The patterns, then yield the ranking of metal contamination across all seven rice brands from lowest to highest is as follows: Morogoro < (Mapembe, Cheju, Mbeya, Shinyanga) < (Jasmine, Basmati). Furthermore, the data analysis indicated that the concentrations of Cr (1.08 mg/Kg), Ni (4.65 mg/Kg), and Pb (3.05 mg/Kg) detected in the samples surpassed the maximum permissible limits established by WHO/FAO which were 1.0 mg/Kg, 0.10 mg/Kg and 0.20 mg/Kg respectively. Consequently, the study concludes that Morogoro rice is the most superior and considered the safest choice for consumption, while Jasmine and Basmati rice are associated with higher levels of metal contamination. Thus, it is highly recommended that Tanzania intensify its rice cultivation efforts to reduce reliance on rice imports from other nations.
In 1955, nutrient malabsorption following upper gut surgery was shown to be related to altered upper gut microbiome. In individuals with abdominal symptoms after Roux-en-Y gastric bypass, we have reported that small intestinal glucose malabsorption is associated with upper gut bacterial overgrowth. We hypothesize that individuals with abdominal symptoms after vertical sleeve gastrectomy have glucose malabsorption associated with upper gut bacterial overgrowth, and to test this hypothesis, bacterial overgrowth and potential glucose malabsorption are examined after sleeve gastrectomy. This is a retrospective study of individuals with medically-complicated obesity who underwent sleeve gastrectomy from 2013 to 2016 with subsequent glucose hydrogen breath testing to evaluate abdominal symptoms. A fasting breath hydrogen or methane of ≥10 PPM or rise of ≥8 PPM ≤45 minutes after oral glucose is bacterial overgrowth, while glucose malabsorption is a second rise of ≥8 PPM at >45 minutes. Seven females (mean age: 48.0 years; mean body mass index at surgery: 45.7 kg/m2) are described. Five subjects (71%) have an early rise in hydrogen or methane, while three (43%) have a second rise in hydrogen or methane >45 minutes after glucose. The mean percent excess weight loss at one year was 40% in three individuals with a second peak and 46% in four subjects without a second peak. After sleeve gastrectomy, subjects have glucose malabsorption associated with the presence of bacterial overgrowth. Completion of a larger prospective study is needed to confirm and expanding upon these findings. Further work should examine the potential effects of bacterial overgrowth on expression of intestinal glucose transporters.
Aparupa Bose Mazumdar Ghosh and Sharmila Chattopadhyay*
Published on: 27th March, 2024
Phyllanthus amarus Schum. and Thonn., a plant of substantial medicinal significance, is known for its usage in the ‘Ayurvedic’ system of medicine for over 2000 years. This herb grows throughout the world including India. P. amarus along with other species of its genus has been a vital part of several herbal formulations available in the Indian market under the trade name Bhuiamlaki. Several pharmacognostic evaluations over the years established the genus Phyllanthus of great commercial value. Ethnopharmacological studies conducted with P. amarus to date have shown its diverse therapeutic usage globally. This owes to the vast array of secondary metabolites present in the herb, substantially in the leaf tissue. Different analytical and phytochemistry studies performed across the globe revealed that P. amarus is a hub of various classes of secondary metabolites viz. lignans like phyllanthin, hypophyllanthin, flavonoids, alkaloids, triterpenes, sterols, volatile oil, ellagitannins including simple and complex tannins, etc. Different analytical techniques have been employed over the past years for isolating and studying these varied secondary metabolites. Further, bioactivities and pharmacological properties of P. amarus that were mainly due to the presence of these wide arrays of secondary metabolites have also been explored extensively across the globe by several research groups. This plant has also been explored at molecular and transcriptome level, although relatively lesser but its extensive molecular and transcriptome analysis have only been performed from our lab. Thus, P. amarus has considerable potential to be explored in the future as a significant therapeutic source not only in the traditional medicinal system but also in the modern pharmaceutical industry.
Multiple studies have investigated the relationship between androgenetic alopecia and cardiovascular disease, including studies that have identified elevated rates of cardiovascular disease in patients with vertex hair loss, vertex and frontal hair loss, early onset hair loss and rapidly progressive hair loss. In addition, increased risks for hypertension, excess weight, abnormal lipids, insulin resistance, carotid atheromatosis and death from diabetes or heart disease have been reported in this population. Studies investigating an association between androgenetic alopecia and metabolic syndrome have yielded conflicting findings. Distinct guidelines for the detection and prevention of cardiovascular disease in individuals with androgenetic alopecia have not been established. In addition to the traditional risk factors for developing cardiovascular disease, included in the definition of the metabolic syndrome, several skin diseases have recently been shown to be markers of conditions relating to the patient’s overall health. Physicians should be aware of the possible connection between relatively frequent skin diseases, such as psoriasis and hair growth disruptions, including androgenetic alopecia and female pattern hair loss and cardiovascular disease. This review is concentrated on the association between insulin resistance, type 2 diabetes, abdominal fat, cardiovascular disease and hair growth disruptions as an early indicator of these underlying conditions. We have investigated the importance of robust primary clinical treatment measures to address the manifestation of hair loss due to a disruption caused by metabolic syndrome as an effective means to alleviate further stress induced hair loss, which can exacerbate the underlying cause.
The Enterprise Radiation Forest (ERF) study was initially introduced as a topic of discussion at the Institute of Forest Genetics, USDA, USFS, in the late 1960s. During that period, a program was endorsed for investigating the impacts of radiation on the forest ecosystem. The rationale for this was to facilitate the prediction of potential outcomes in the occurrence of a nuclear disaster. The research location was situated within the forested lands in Enterprise of Oneida County, Wisconsin, United States. The radiation source in question was a 10,000 curie source of Cesium-137, characterized by a halflife of 33 years. Furthermore, a study concerning lichens was also carried out, the data, photographs, and micrographs were meticulously gathered to illustrate the pre-irradiation activity of the species. This subject holds significant value for dissemination among peers in the scientific community, particularly considering the resilience exhibited by natural ecosystems in response to varying levels of radiation. The information is reviewed with the objective of the entire program to ascertain the potential consequences for a northern forest ecosystem in the event of a nuclear disaster, in addition to the two publications from the Atomic Energy Commission.
Children who experience Adverse Childhood Experiences (ACEs)—including trauma, family instability, or significant loss—are at increased risk for enduring mental, emotional, and physical challenges, including conditions such as depression, anxiety, and chronic health issues. Without effective support, these adverse experiences can have lasting effects on a child’s well-being, often persisting into adulthood and impacting mental, emotional, and physical health outcomes over the long term. Storytelling is a powerful method to support resilience in these children by enabling them to process emotions, make sense of complex experiences, and view themselves as active agents in their lives. By framing their experiences within personal narratives, children can create coherent stories that aid emotional regulation and support mental well-being. Through storytelling, children can frame their struggles as part of a larger, purposeful journey, fostering a sense of agency and self-worth. Techniques such as narrative therapy, story circles, and resilience-themed books-exemplified by The Adventures of Gabriel—help children explore their experiences, visualise positive outcomes, and strengthen social bonds. Moreover, storytelling is an accessible tool that aids in perspective—taking, allowing children to relate their challenges to those of characters, which reinforces their ability to overcome adversity and navigate life’s complexities with strength and optimism.
Nikolay A Charykov, Konstantin N Semenov, Victor A Keskinov*, Alexey V Rumyantsev, Natalia A Kulenova, Marina V Charykova and Dmitriy I Subbotin
Published on: 17th October, 2023
The article gives a general classification of non-invariant points in phase equilibrium diagrams of all possible types. The complete topological isomorphism of the diagrams of fusibility, solubility, and liquid-vapor equilibria in various sets of variables is demonstrated. The stability of mono-variant equilibria near the non-variant points is investigated. Recurrent formulas for calculating the number of topological elements of phase diagrams are given. A previously undescribed type of non-invariant points and phase processes in the solubility diagrams is described and characterized. The last ones have no topological analogs in other types of diagrams. Thus, we have carried out, as far as is available to the authors, a complete classification of invariant points and invariant processes in phase equilibrium diagrams of an arbitrary type and with an arbitrary number of components.
Narimane Kebieche*, Farzana Liakath Ali, Seungae Yim, Mohamed Ali, Claude Lambert and Rachid Soulimani
Published on: 15th November, 2024
Neurotoxicity is increasingly recognized as a critical factor impacting long-term health, with growing evidence linking it to both neurodevelopmental and neurodegenerative diseases. Pesticides, widely used in agriculture and industry, have emerged as significant contributors to neurotoxic risk, given their capacity to disrupt key neurodevelopmental processes at low exposure levels. As conventional animal models present limitations in interspecies translation, human-derived neuron-based in vitro screening strategies are urgently needed to assess potential toxicants accurately. Human-induced pluripotent stem cells (hiPSCs) offer an innovative and scalable source for human-specific neuronal models that complement traditional animal-based approaches and support the development of predictive assays for neurotoxicity. Recent various stem cell models, including 2D cultures, 3D organoids, and microfluidic systems, are now available, advancing predictive neurotoxicology by simulating key aspects of human neural development and function. With the integration of High-Throughput (HT) and High-Content (HC) screening methodologies, these hiPSC-based systems enable efficient, large-scale evaluation of chemical effects on neural cells, enhancing our ability to detect early biomarkers of neurotoxic effects. Identifying early biomarkers of neurotoxic is essential to developing therapeutic interventions before irreversible damage occurs. This is particularly crucial in the context of developmental neurotoxicity, where early exposure to toxicants can have lifelong consequences. This review specifically presents an in-depth overview of the current progress in hiPSC-derived neural models and their applications in neurotoxicity testing, with a specific focus on their utility in assessing pesticide-induced neurotoxicity. Emphasizing future research priorities, we highlight the potential of these models to transform predictive toxicology, offering more human-relevant assessments and advancing the field toward a more precise evaluation of environmental neurotoxicants.
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