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Preserving Continuity of Cancer Therapy in Patients with Hematologic Malignancies and Chronic Subdural Hematomas: Comparative Outcomes of Middle Meningeal Artery Embolization and Surgery.

Background/Objective: Hematologic cancer patients are at high risk of developing chronic subdural hematomas (cSDH), and traditional treatment with surgery is potentially risky in this patient population, with associated coagulopathy and thrombocytopenia. Neurointerventional endovascular middle meningeal artery embolization (MMAE) is emerging as a novel minimally invasive treatment method for cSDH, and its efficacy and complication profile has not been evaluated in patients with hematologic cancers. Methods: We conducted a retrospective cohort study of adults with hematologic malignancies and c

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… Once positioned distally within the MMA, embolic material (typically liquid embolic agents or polyvinyl alcohol particles) is deployed to occlude the vessel and its branches, which targets the underlying pathophysiology of cSDH: rather than simply evacuating accumulated blood, MMAE addresses the vascularized …

Decoding Cancer Risk: Understanding Gene-Environment Interactions in Cancer Development.

While lifestyle choices or behavioral patterns remain the most significant factors influencing cancer risk, environmental exposure to certain chemicals, both manufactured and natural, may also contribute to an individual's likelihood of developing cancer. This interplay of factors, coupled with an aging demographic and shifting lifestyle patterns, has led to an increasing prevalence of cancer in recent years. This study examines the environmental and behavioral factors that contribute to anomalies in the immune system and increase the risk of developing cancer. Significant environmental and oc

Topical pharmacologic interventions versus placebo for epidemic keratoconjunctivitis.

BACKGROUND: Viruses cause about 80% of all cases of acute conjunctivitis. Human adenoviruses are believed to account for 65% to 90% of cases … ne, PVP-I + dexamethasone) with topical steroids, and one trial compared fluorometholone (FML) plus polyvinyl alcohol iodine (PVA-I) with FML plus levofloxacin. Evidence from one trial showed that more eyes receiving PVP-I 1.0% plus dexamethasone 0.1% had symptoms resolved by day seven compared with those receiving dexamethasone alone (RR 9.00, 95% CI 1.23 to 66.05 …

Advancing Brain Health Naturally: β-Caryophyllene and Xanthohumol as Neuroprotective Agents.

Neurodegenerative diseases (NDDs) represent a class of incurable and progressive disorders characterized by the gradual degeneration of the structure and function of the nervous system, particularly the brain and spinal cord. A range of innovative therapeutic approaches is currently under investigation, such as stem cell-based therapies, gene-editing platforms such as CRISPR, and immunotherapies directed at pathogenic proteins. Moreover, phytochemicals such as β-caryophyllene and xanthohumol have demonstrated significant neuroprotective potential in preclinical models. These natural agents exe

Advances in preclinical hematopoietic stem cell models and possible implications for improving therapeutic transplantation.

Hematopoietic stem cell transplantation (HSCT) is a treatment for many malignant, congenital, and acquired hematologic diseases. Some outstanding challenges in the HSCT field include the paucity of immunologically-matched donors, our inability to effectively expand hematopoeitic stem cells (HSCs) ex vivo, and the high infection risk during engraftment. Scientists are striving to develop protocols to generate, expand, and maintain HSCs ex vivo, however these are not yet ready for clinical application. Given these problems, advancing our understanding of HSC specification, regulation, and differ

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… For example, culture in defined, serum‐free media with a polyvinyl alcohol (PVA) substrate has enabled massive expansion of both mouse and human umbilical cord HSPCs, while maintaining multilineage engraftment capacity upon serial transplantation in mice. 13 In addition, co‐culture with endothelial cells …

Preoperative embolization in surgical treatment of long bone metastasis: a systematic literature review.

Surgery of long bone metastases is associated with a significant risk of perioperative blood loss, which may necessitate blood transfusion.Successful embolization (> 70% obliteration of vascularity) can be achieved in 36-75% of cases.The reported rate of embolization-related complications is 0-9%.Three out of six level III evidence studies showed a reduction in perioperative blood loss and/or blood transfusion requirement after preoperative embolization of renal cell carcinoma metastasis in long bones; three out of six studies did not.One level III evidence study did not show a reduction in pe

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… Basile A Rand T Lomoschitz F Trisacryl gelatin microspheres versus polyvinyl alcohol particles in the preoperative embolization of bone neoplasms . Cardiovasc Intervent Radiol 2004 ; 27 : 495 – 502 . 15383854 10.1007/s00270-003-0147-1 21. …

An Early Myeloma Bone Disease Model in Skeletally Mature Mice as a Platform for Biomaterial Characterization of the Extracellular Matrix.

Multiple myeloma (MM) bone disease is characterized by osteolytic bone tissue destruction resulting in bone pain, fractures, vertebral collapse, and spinal cord compression in patients. Upon initial diagnosis of MM, almost 80% of patients suffer from bone disease. Earlier diagnosis and intervention in MM bone disease would potentially improve treatment outcome and patient survival. New preclinical models are needed for developing novel diagnostic markers of bone structural changes as early as possible in the disease course. Here, we report a proof-of-concept, syngeneic, intrafemoral MOPC315.BM

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… Each bone was mounted in a 2 ml polyvinyl alcohol (PVA) vial (Sarstedt, Nümbrecht, Germany), centrally stabilized in styropore, and padded with a polyester foam saturated with 70% ethanol. …

Nanoliposomes in Cancer Therapy: Marketed Products and Current Clinical Trials.

The drugs used for cancer treatment have many drawbacks, as they damage both tumor and healthy cells and, in addition, they tend to be poorly soluble drugs. Their transport in nanoparticles can solve these problems as these can release the drug into tumor tissues, as well as improve their solubility, bioavailability, and efficacy, reducing their adverse effects. This article focuses on the advantages that nanotechnology can bring to medicine, with special emphasis on nanoliposomes. For this, a review has been made of the nanoliposomal systems marketed for the treatment of cancer, as well as th

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… Different researchers have studied liposomes coated with hydrophilic polymers (PEG), and other polymers such as polyacrylamide, polyvinyl alcohol, or polyvinylpyrrolidone have been used to achieve the same goals. …

Perspective Applications and Associated Challenges of Using Nanocellulose in Treating Bone-Related Diseases.

Bone serves to maintain the shape of the human body due to its hard and solid nature. A loss or weakening of bone tissues, such as in case of traumatic injury, diseases (e.g., osteosarcoma), or old age, adversely affects the individuals quality of life. Although bone has the innate ability to remodel and regenerate in case of small damage or a crack, a loss of a large volume of bone in case of a traumatic injury requires the restoration of bone function by adopting different biophysical approaches and chemotherapies as well as a surgical reconstruction. Compared to the biophysical and chemothe

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… In another study, Leito et al. (2013) evaluated hemocompatibility of BNC and polyvinyl alcohol (PVA) nanocomposite by determining the whole blood clotting time, plasma recalcification, Factor XII activation, platelet adhesion and activation, and hemolytic index. … Hemocompatibility study of a bacterial cellulose/polyvinyl alcohol nanocomposite. Colloids Surfaces B Biointerfaces 111 493–502.. 10.1016/j.colsurfb.2013.06.031 Li J., Wan Y., Li L., Liang H., Wang J. (2009). …

Электронная добыча медицинских карт свидетельствует о воздействии иммунного состояния пациента на клинические результаты имплантации биоматериалов после повреждения мышечной ткани скелета.

Имплантация медицинских устройств и биоматериалов может помочь восстановить форму и функцию отсутствующей или поврежденной ткани. Известно, что иммунная система играет важнейшую роль как в позитивном, так и в негативном исходе этих имплантированных материалов. Реакция иностранного организма характеризуется осаждением белка и свертыванием, за которым следуют макрофагенное воспаление, расстройство фагоцитоза, образование гигантских клеток и, в конечном счете, фиброз. Это может препятствовать функционированию имплантированных устройств (например. Инсулиновые насосы), а также космезис (например, к

Изучение точных методов лечения иммунизированных подстрекательских заболеваний: использование бесконечного потенциала доставки нуклеиновой кислоты.

Неизлечимые подстрекательские заболевания (ИМИД) создают неизмеримое бремя для отдельных лиц и общества. В то время как традиционное использование иммунодепрессантов и лекарственных средств для борьбы с заболеваниями обеспечивает частичную помощь и контроль, их неизбежные побочные эффекты и ограниченная эффективность ставят под сомнение возможность найти лекарство. Перспективные лекарства от нуклеиновой кислоты продемонстрировали способность оказывать точное воздействие на молекулярном уровне, при этом различные классы нуклеиновых кислот выполняют регулирующие функции с помощью различных механ

Drug Delivery Approaches for the Treatment of Cervical Cancer.

Cervical cancer is a highly prevalent cancer that affects women around the world. With the availability of new technologies, researchers have increased their efforts to develop new drug delivery systems in cervical cancer chemotherapy. In this review, we summarized some of the recent research in systematic and localized drug delivery systems and compared the advantages and disadvantages of these methods.

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… Similarly, the acrylic polymers Eudragit-E and polyvinyl alcohol (PVA) loaded with Naringenin induced changes in mitochondrial membrane potential, augmented reactive oxygen species levels, decreased intracellular glutathione levels, produced morphological alterations in apoptosis, and caused dose-dependent …

Biocompatibility in hemodialysis: artificial membrane and human blood interactions.

Hemodialysis, a cornerstone therapy for chronic kidney disease, represented a crucial advance in the evolution of artificial organs. While its success is largely due to its efficiency in removing uremic toxins, an equally important challenge is to uphold the primum non nocere principle by minimizing the harmful effects of membrane-blood interactions. This review examines the complex mechanisms and key interactions underlying membrane biocompatibility, including complement activation, inflammation, and coagulation disturbances, paving the way for their clinical implications. We also summarize r

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… Common blending additives include polyethylene glycol (PEG), polyvinylpyrrolidone (PVP), and polyvinyl alcohol (PVA), which improve biocompatibility. …

How to Treat Melanoma? The Current Status of Innovative Nanotechnological Strategies and the Role of Minimally Invasive Approaches like PTT and PDT.

Melanoma is the most aggressive type of skin cancer, the incidence and mortality of which are increasing worldwide. Its extensive degree of heterogeneity has limited its response to existing therapies. For many years the therapeutic strategies were limited to surgery, radiotherapy, and chemotherapy. Fortunately, advances in knowledge have allowed the development of new therapeutic strategies. Despite the undoubted progress, alternative therapies are still under research. In this context, nanotechnology is also positioned as a strong and promising tool to develop nanosystems that act as drug ca

Pulmonary hypertension and the potential of 'drug' repurposing: A case for African medicinal plants.

AbstractPulmonary hypertension (PH) is a haemodynamic disorder in which elevated blood pressure in the pulmonary circulation is caused by abnormal vascular tone. Despite advances in treatment, PH mortality remains high, and drug repurposing has been proposed as a mitigating approach. This article reviews the studies that have investigated drug repurposing as a viable option for PH. We provide an overview of PH and highlight pharmaceutical drugs with repurposing potential, based on limited evidence of their mechanisms of action. Moreover, studies have demonstrated the benefits of medicinal plan

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… A point of caution is needed here, as conventional methods of nanoparticle production use polyvinyl alcohol, polyethylene glycol, and D-alpha tocopheryl polyethylene glycol 1000 succinate as stabilisers during synthesis. …

The cGAS-STING pathway in senescence and aging-related diseases: mechanisms and therapeutic opportunities.

The cGAS-STING pathway acts as a critical molecular hub connecting genomic instability with cellular senescence. Functioning as a key regulator of the innate immune system, this pathway detects aberrant cytoplasmic DNA to activate downstream inflammatory responses, thereby playing a pivotal role in aging-related diseases. This review systematically explores the core mechanisms by which the cGAS-STING pathway regulates cellular senescence, emphasizing its role in triggering senescence through the recognition of DNA damage signals (e.g., oxidative stress, telomere dysfunction) and promoting para

Controlled Drug Delivery Systems for Oral Cancer Treatment-Current Status and Future Perspectives.

Oral squamous cell carcinoma (OSCC), which encompasses the oral cavity-derived malignancies, is a devastating disease causing substantial morbidity and mortality in both men and women. It is the most common subtype of the head and neck squamous cell carcinoma (HNSCC), which is ranked the sixth most common malignancy worldwide. Despite promising advancements in the conventional therapeutic approaches currently available for patients with oral cancer, many drawbacks are still to be addressed; surgical resection leads to permanent disfigurement, altered sense of self and debilitating physiologica

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… Minhas et al. developed a pH-responsive controlled release system for 5-FU delivery, by preparing a chemically cross-linked polyvinyl alcohol- co -poly(methacrylic acid) hydrogel loaded with 5-FU, which enabled the release of 5-FU at pH 7.4, with the potential for being used as an oral drug delivery …

Advances and Prospects of Prolamine Corn Protein Zein as Promising Multifunctional Drug Delivery System for Cancer Treatment.

Zein is a type of prolamine protein that is derived from corn, and it has been recognized by the US FDA as one of the safest biological materials available. Zein possesses valuable characteristics that have made it a popular choice for the preparation of drug carriers, which can be administered through various routes to improve the therapeutic effect of antitumor drugs. Additionally, zein contains free hydroxyl and amino groups that offer numerous modification sites, enabling it to be hybridized with other materials to create functionalized drug delivery systems. However, despite its potential

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… Hydrophobic action Doxorubicin Sodium caseinate, zein 204.53 ± 1.53 0.17 ± 0.02 −45.20 ± 0.21 90.06 ± 0.26 15.01 ± 0.14 [ 40 ] Maytansine Zein 112.3 ± 6.16 0.213 ± 0.02 37.0 ± 1.14 82.97 ± 0.80 3.32 ± 0.03 [ 45 ] Thymoquinone Polyvinyl alcohol, zein 175 ± 8.2 [ 81 ] Pterostilbene Zein 104.5 ± 6.2 0.16 … Hydrophobic action | Doxorubicin | Sodium caseinate, zein | 204.53 ± 1.53 | 0.17 ± 0.02 | −45.20 ± 0.21 | 90.06 ± 0.26 | 15.01 ± 0.14 | [ 40 ] Maytansine | Zein | 112.3 ± 6.16 | 0.213 ± 0.02 | 37.0 ± 1.14 | 82.97 ± 0.80 | 3.32 ± 0.03 | [ 45 ] Thymoquinone | Polyvinyl alcohol, zein | 175 ± 8.2 | | | …

Bone metastases in thyroid cancer.

Whereas preemptive screening for the presence of lymph node and lung metastases is standard-of-care in thyroid cancer patients, bone metastases are less well studied and are often neglected in thyroid cancer patient surveillance. Bone metastases in thyroid cancer are, however, independently associated with poor/worse prognosis with a median overall survival from detection of only 4 years despite an otherwise excellent prognosis for the vast majority of thyroid cancer patients. In this review we summarize the state of current knowledge as pertinent to bony metastatic disease in thyroid cancer,

Skin cancer: understanding the journey of transformation from conventional to advanced treatment approaches.

Skin cancer is a global threat to the healthcare system and is estimated to incline tremendously in the next 20 years, if not diagnosed at an early stage. Even though it is curable at an early stage, novel drug identification, clinical success, and drug resistance is another major challenge. To bridge the gap and bring effective treatment, it is important to understand the etiology of skin carcinoma, the mechanism of cell proliferation, factors affecting cell growth, and the mechanism of drug resistance. The current article focusses on understanding the structural diversity of skin cancers, tr