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1.
Artigo em Inglês | MEDLINE | ID: mdl-39316331

RESUMO

PURPOSE: Clinical specialists are supposed to inform childhood cancer patients of infertility risk and conduct fertility preservation (FP). However, little is known about whether doctors in China are fully prepared. This study aimed to investigate behavior, attitude, perception, and knowledge regarding FP among pediatric oncological specialists in a nation wide survey, to set the stage for improvements in current clinical practice patterns. METHODS: This study was conducted on physicians and surgeons specialized in pediatric oncology using a questionnaire through the WeChat platform. The behavior, attitude, perception, and knowledge were assessed by Likert questions and results were quantified to obtain scores. Data were then described and analyzed using R and GraphPad. RESULTS: Totally 373 specialists in pediatric tumors were included in the analysis. Hematologists, oncological surgeons, and reproductive medicine specialists won most trusts to be responsible for FP job. Most respondents did not have habits of delivering FP information or cooperating with FP specialists during treatment though they were well equipped with FP knowledge and desired for uniform national guideline for FP procedures. The severity of illness was regarded as the primary barrier of FP delivery. When a doctor was more educated and experienced, he was more likely to have better performance in FP. The total score, the knowledge score, and the single score concerning frequency of patients' inquiry showed aggregational trend on geographic distribution. CONCLUSION: Chinese pediatric oncologists demonstrated unsatisfactory practice behaviors based upon this self-reporting survey, although their attitude towards FP was generally positive.

2.
Food Chem X ; 24: 101762, 2024 Dec 30.
Artigo em Inglês | MEDLINE | ID: mdl-39314538

RESUMO

An active chitosan (CS) film containing a nano-hydroxyapatite-tea polyphenol (HAP-TP) complex was designed and prepared. The effects of HAP-TP loading on the structural and physicochemical properties of the CS-based film were evaluated. The mechanical and thermal properties of the film were significantly improved by the resulting intermolecular interactions and formation of hydrogen bonds between HAP-TP and CS, which reduced the water vapor and oxygen permeabilities of the film by 29.78 and 35.59 %, respectively. The CS-HAP-TP film exhibited excellent slow-release behavior and antioxidant activity, with a cumulative release rate at 700 h 6.79 % lower than that of CS-TP films. The CS-HAP-TP film significantly inhibited the deterioration of semi-dried golden pompano, and thus helped to retain the taste of umami and sweet amino acids in fish samples, while reducing off-flavor generation. The film therefore shows considerable potential as an active packaging material for the preservation of semi-dried fish products.

3.
Histochem Cell Biol ; 2024 Sep 24.
Artigo em Inglês | MEDLINE | ID: mdl-39317804

RESUMO

The use of cold formalin fixation (CFF; i.e., fixating tissue samples with 4 °C precooled formalin) recently attracted further attention owing to its putative improved ability to preserve nucleic acid compared with standard room temperature formalin (SFF). In this study, we aimed to assess the effect of four formalin-based fixation protocols (SFF, CFF, delayed formalin fixation-DFF, and cold formalin hyperfixation; CFH) on both DNA and RNA quality. We collected 97 colorectal cancer (CRC) and analyzed 23 metrics of nucleic acid quantity and quality yield using a multiplatform approach by combining spectrophotometric, fluorimetric, electrophoretic, and polymerase chain reaction (PCR) assays. Following confirmation of fixation-protocol-related different effects via clustering analysis, CFF presented best metrics compared with all protocols, specifically positive coefficients of DV1000-60000, DV2/DV1, DNA λ ratio 260/230, and ABL gene expression absolute copies, and negative coefficient of DV150-1000. The SFF subgroup presented a positive coefficient of DV150-1000 and negative coefficients for DV1000-60000, DV2/DV1, RNA λ ratio 260/230, RNA QuBit concentration, DV100/200, RNA electrophoresis concentration and absolute quantity, and ABL copies. Overall, we confirmed the superior yield performances of CFF preservation for both DNA and RNA compared with the other protocols in our series of CRC samples. Pending further validations and clarification of the specific mechanisms behind these findings, our study supports the implementation of CFF in the pathology unit routine specimen management for tumor tissue molecular profiling.

4.
Breast Cancer ; 2024 Sep 25.
Artigo em Inglês | MEDLINE | ID: mdl-39320644

RESUMO

BACKGROUND: Data on the desire for pregnancy and the status of fertility preservation (FP) in patients with breast cancer remain unclear. This study aimed to determine the status of patients with breast cancer who desired pregnancy and FP implementation before systemic therapy. METHODS: This retrospective study surveyed the institutional clinical databases and electronic medical records of patients aged < 43 years with stages 0-III primary breast cancer during surgery and treated between April 2020 and March 2021. All patients were enquired about their desire for pregnancy in a questionnaire by "present," "absent," and "unsure" at their first visit. The correlation between the desire for pregnancy, implementation of FP, and clinicopathological factors was investigated. RESULTS: Among 1005 patients who underwent surgery for primary breast cancer, 146 were included in the analysis. Of them, 34 (23.3%) patients had a desire for pregnancy, and 45 (30.8%) chose "unsure." Factors associated with the desire for pregnancy were younger age during surgery (p < 0.0022), unmarried status (p < 0.001), nulliparity (p < 0.001), early-stage disease (p = 0.0016), and estrogen receptor positivity (p = 0.008). Among 115 patients who underwent systemic therapy, 13 (11.3%) underwent FP before systemic therapy. Patients who were nulliparous frequently pursued FP (p = 0.0195). The proportion of FP implementation was low in patients who received neoadjuvant chemotherapy (p = 0.0863). CONCLUSIONS: Our study suggests that unmarried, nulliparous, and younger patients were more interested in pregnancy, and nulliparous patients frequently pursued FP.

5.
J Clin Med ; 13(18)2024 Sep 20.
Artigo em Inglês | MEDLINE | ID: mdl-39337064

RESUMO

As oncologic therapy continues to advance, survivorship care has widened the realm of possibilities for quality-of-life improvements, including fertility preservation and restoration. We aim to summarize the current and future directions of fertility preservation techniques for patients facing gonadotoxic medical therapies who desire pregnancy after their condition is treated. This review of both ovarian and uterine transposition highlights the present roles, techniques, and fertility outcomes of the two fertility preservation treatment modalities designed to protect reproductive organs from harmful pelvic radiation. Current evidence shows that ovarian transposition preserves ovarian function for patients with localized pelvic radiation demonstrating the most successful return of fertility. Uterine transposition holds great promise for patients desiring to conceive and carry a full-term pregnancy after radiation therapy. With ongoing advancements in oncologic treatments leading to increased survival rates, fertility is increasingly becoming a key survivorship issue. Patients can anticipate counseling about these fertility preservation surgical techniques that protect both the ovaries as well as the uterus from harmful pelvic radiation.

6.
World J Clin Cases ; 12(27): 6129-6131, 2024 Sep 26.
Artigo em Inglês | MEDLINE | ID: mdl-39328851

RESUMO

This editorial commentary critically examines the systematic review by Miotti et al, which discusses the evolving trends in upper lid blepharoplasty towards a conservative, volume-preserving approach. The review emphasizes the shift from traditional tissue resection to techniques that maintain anatomical integrity, paralleling broader trends in panfacial rejuvenation. Miotti et al delve into the nuances of fat pad management, advocating for conservation over reduction to sustain natural contours and improve long-term aesthetic outcomes. This perspective is supported by comparative studies and empirical data, such as those from Massry and Alghoul et al, highlighting the benefits of conservative approaches in terms of patient satisfaction and aesthetic longevity. The review also stresses the importance of surgeon discretion in adapting procedures to diverse patient demographics, particularly in addressing distinct features such as the Asian upper eyelid. However, it identifies a significant gap in long-term comparative research, underscoring the need for future studies to substantiate the safety and efficacy of these minimalist techniques. Overall, Miotti et al.'s work contributes profoundly to the discourse on personalized, conservative cosmetic surgery, urging ongoing research to refine and validate surgical best practices in upper eyelid blepharoplasty.

7.
Reprod Biomed Online ; 49(6): 104374, 2024 Jul 10.
Artigo em Inglês | MEDLINE | ID: mdl-39342810

RESUMO

RESEARCH QUESTION: What is the experience and mid- and long-term andrological health follow-up of (pre)pubertal males who have undergone testicular tissue freezing (TTF)? DESIGN: This single-centre longitudinal retrospective cohort study reports on the mid- and long-term andrological health follow-up of (pre)pubertal males and young adults who underwent TTF for fertility preservation between January 2007 and December 2018. Medical characteristics and questionnaire data collected more than 18 months after TTF were analysed. RESULTS: Thirty-six patients were revisited during a medical follow-up consultation. During follow-up after TTF, 72.7% of patients could not recollect their counselling consultation prior to TTF but 42.4% of them found information about the TTF process useful and sufficient. Parents' or legal guardians' feedback was more positive about the counselling consultation and the TTF process. After TTF and treatment, the majority of patients (76.9%) who provided a semen sample had non-obstructive azoospermia. Higher serum concentrations of FSH and LH and lower serum concentrations of inhibin B were associated with non-obstructive azoospermia compared with patients with oligozoospermia (P = 0.0182, P = 0.0245 and P = 0.0140 respectively). During cancer treatment, about half of pubertal patients reported sexual dysfunction, decreasing to approximately 20% after treatment. However, two patients had children using sperm donation and one patient had a child through natural pregnancy. CONCLUSIONS: The involvement of parents or legal guardians is crucial in the decision-making process for fertility preservation in (pre)pubertal boys. Regular follow-up, including the use of questionnaires, is essential to provide guidance for fertility preservation programmes and information on fertility restoration options and to address the psychosocial aspects of fertility preservation.

8.
Pharmaceutics ; 16(9)2024 Aug 30.
Artigo em Inglês | MEDLINE | ID: mdl-39339191

RESUMO

High-risk BCG-unresponsive non-muscle invasive bladder cancer (NMIBC) is a condition that is typically treated with Bacillus Calmette-Guérin (BCG) therapy. Unfortunately, NMIBC is characterized by high recurrence, with a significant percentage of BCG patients ultimately requiring radical cystectomy. As a consequence, the development of effective new therapies to avoid RC has become a rapidly evolving field to address this unmet clinical need. To date, three biologics-Keytruda, Adstiladrin, and Anktiva-have been approved by the FDA, and multiple drug modalities, particularly gene therapies, have shown promising results in clinical trials. Advances in drug delivery strategies, such as targeted delivery, sustained release, and permeabilization of protective layers, are critical in overcoming the challenges posed by therapeutic intervention in bladder cancer. This review focuses on high-risk BCG-unresponsive NMIBC therapies that have been or are currently being investigated in clinical trials, offering a broad overview of the delivery system designs and up-to-date clinical outcomes that have been reported as of July 2024. It aims to inform the development of future drug delivery systems for second-line therapies in high-risk BCG-unresponsive NMIBC.

9.
Tech Coloproctol ; 28(1): 119, 2024 Sep 10.
Artigo em Inglês | MEDLINE | ID: mdl-39254913

RESUMO

BACKGROUND: One of the approaches to distal sigmoid colon cancer surgical treatment is segmental colonic resection with vascular preservation of left colic artery (LCA). D3 lymph node dissection may technically vary according to different vascular anatomy. This study aims to show the approaches to D3 lymph node dissection with LCA preservation for distal sigmoid colon cancer according to different patterns of inferior mesenteric artery (IMA) branching. METHODS: CT angiography with 3D reconstruction was routinely performed to identify the IMA branching pattern. Laparoscopic distal sigmoid colon resection with D3 lymph node dissection and left colic artery preservation in standardized fashion was performed in all cases. Data, including clinical, intraoperative, and short-term surgical outcomes, is presented as median numbers (Me) and interquartile range (IQR). RESULTS: Twenty-six patients with distal sigmoid colon cancer were treated with laparoscopic distal sigmoid colon resection. The approach to D3 lymph node dissection varied according to different anatomical variations. There was one conversion (3.8%) and one anastomotic leakage (3.8%) in patients with high BMI. At the same time, there was a high apical lymph node count (Me 3 (IQR 2-5), min-max 0-10) due to the skeletonization of the IMA. CONCLUSIONS: The technical aspects of D3 lymph node dissection with left colic artery preservation may vary in different types of LCA and sigmoid artery branching patterns regardless of the standardized anatomical landmarks. The anatomical features should be considered when performing vascular-sparing lymph node dissection.


Assuntos
Colo Sigmoide , Laparoscopia , Excisão de Linfonodo , Artéria Mesentérica Inferior , Neoplasias do Colo Sigmoide , Humanos , Excisão de Linfonodo/métodos , Neoplasias do Colo Sigmoide/cirurgia , Artéria Mesentérica Inferior/cirurgia , Artéria Mesentérica Inferior/diagnóstico por imagem , Feminino , Masculino , Idoso , Laparoscopia/métodos , Pessoa de Meia-Idade , Colo Sigmoide/cirurgia , Colo Sigmoide/irrigação sanguínea , Colectomia/métodos , Angiografia por Tomografia Computadorizada , Tratamentos com Preservação do Órgão/métodos , Imageamento Tridimensional , Fístula Anastomótica/etiologia , Fístula Anastomótica/prevenção & controle , Resultado do Tratamento , Colo/irrigação sanguínea , Colo/cirurgia
10.
Trials ; 25(1): 578, 2024 Sep 02.
Artigo em Inglês | MEDLINE | ID: mdl-39223633

RESUMO

BACKGROUND: Around 4% of women receive an endometrial cancer diagnosis before turning 40, mainly those without prior childbirth experience and a strong desire to preserve their ability to conceive. Consequently, for young patients diagnosed with atypical endometrial hyperplasia (AEH) or early endometrial carcinoma (EC), a fertility-preserving approach employing high-dose oral progesterone has been adopted. However, previous research has shown a notable relapse rate. Furthermore, the extended use of substantial oral progesterone doses may hinder ovarian function and raise the risk of weight gain, liver issues, blood clotting, and breast cancer. We previously assessed the clinical effectiveness and pregnancy outcomes of gonadotropin-releasing hormone agonist (GnRH-a) based re-treatment for women with EC and AEH who did not respond to oral progestin therapy but achieved favorable treatment results and reproductive outcomes. METHODS: This study will be an open-label, two-armed, randomized, investigator-initiated multicenter trial evaluating the combination of GnRH-a with the levonorgestrel-releasing intrauterine system or the combination of GnRH-a with an aromatase inhibitor (comprising a subcutaneous GnRH-a injection every 4 weeks and daily oral letrozole 2.5 mg). A total of 226 participants will be randomly allocated to one of the two treatment groups in a 1:1 ratio. The primary objective is to determine the effectiveness of GnRH-a-based re-treatment in achieving a complete response (CR) at 24 weeks for patients with AEH or EC. Secondary objectives include assessing the pregnancy rate 12 weeks after treatment, as well as post-treatment pregnancy outcomes and the rate of recurrence. ETHICS AND DISSEMINATION: The protocol received approval from the Institutional Review Board of Peking Union Medical College Hospital and from boards at five other institutions. The trial will adhere to the principles outlined in the World Medical Association's Declaration of Helsinki and follow Good Clinical Practice standards. The trial results will be disseminated through publication in a peer-reviewed journal. CONCLUSIONS: Prospective evidence supporting conservative treatment for EC and AEH is limited. There is a need for new approaches that can achieve higher CR rates with fewer side effects. This trial will assess the effectiveness of GnRH-a-based fertility-sparing treatment in obese women and recurrent patients, offering a promising alternative for patients with EC and AEH. TRIAL REGISTRATION NUMBER: Chinese Clinical Trial Registry ChiCTR2200067099. Registered on December 27, 2022.


Assuntos
Hiperplasia Endometrial , Neoplasias do Endométrio , Preservação da Fertilidade , Hormônio Liberador de Gonadotropina , Levanogestrel , Estudos Multicêntricos como Assunto , Ensaios Clínicos Controlados Aleatórios como Assunto , Humanos , Feminino , Hormônio Liberador de Gonadotropina/agonistas , Hiperplasia Endometrial/tratamento farmacológico , Hiperplasia Endometrial/complicações , Neoplasias do Endométrio/tratamento farmacológico , Preservação da Fertilidade/métodos , Gravidez , Levanogestrel/administração & dosagem , Levanogestrel/efeitos adversos , Levanogestrel/uso terapêutico , Inibidores da Aromatase/uso terapêutico , Inibidores da Aromatase/efeitos adversos , Inibidores da Aromatase/administração & dosagem , Dispositivos Intrauterinos Medicados , Resultado do Tratamento , Adulto , Antineoplásicos Hormonais/uso terapêutico , Antineoplásicos Hormonais/efeitos adversos , Antineoplásicos Hormonais/administração & dosagem , Letrozol/administração & dosagem , Letrozol/uso terapêutico , China , Taxa de Gravidez
11.
Int J Biol Macromol ; 280(Pt 1): 135649, 2024 Sep 14.
Artigo em Inglês | MEDLINE | ID: mdl-39284472

RESUMO

The objective of this study was to prepare an active packaging film using phosphorylated soy protein isolate (PPS) and Artemisia sphaerocephala Krasch. gum (ASKG) as film matrices, with the incorporation of pomegranate peel extract (PPE) to preserve fresh-cut apples. The results showed that PA-PPE (PPS/ASKG-PPE) films significantly increased thickness by 24.47 %, tensile strength by 58.76 %, and elongation at break by 30.48 %. Additionally, water vapor permeability and oxygen permeability decreased significantly to 6.17 × 10-13 and 0.62 × 10-13 Kg•m•m-2•s-1•Pa-1, respectively. FTIR, XRD, and SEM analyses confirmed the formation of intermolecular hydrogen bonds between PPS, ASKG, and polyphenols extracted from pomegranate peel, indicating excellent compatibility. Furthermore, radical scavenging activity experiments demonstrated that these films exhibited a remarkable ability to scavenge DPPH and ABTS+ radicals up to 70.44 % and 74.28 %, respectively, when the PPE content was at 3 wt%. Moreover, PPS could achieve a sustained release effect on polyphenols with a relatively low release rate (63.83 %) even after seven days' time elapsed. Finally, the PA-PPE film displayed superior performance in reducing the weight loss and browning index of fresh-cut apples within 24 h of storage. The development of PA-PPE film could promote sustainable resource protection and demonstrate promising prospects in the field of fresh-cut fruit packaging.

12.
Front Endocrinol (Lausanne) ; 15: 1367241, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39253581

RESUMO

Background: Hematopoietic stem cell transplantation (HSCT) is an approach that has significantly improved the prognosis and survival of hematological patients. However, ovarian dysfunction and infertility following HSCT have gained increasing attention. Live births have been reported following ovarian tissue cryopreservation prior to HSCT and subsequent retransplantation of these tissues. Still, the feasibility of ovarian tissue cryopreservation (OTC) following graft failure (GF) of HSCT remains unknown. In this study, we report the first case of OTC following a GF of allogenic HSCT (allo-HSCT), as well as the cryopreservation of four MII oocytes via in vitro maturation with informed consent. Despite the lack of clinical outcomes after cryopreserved ovarian tissue retransplantation, we documented an interesting case in a woman after GF of allo-HSCT exhibiting functional ovaries and emphasized a clinical dilemma: whether OTC should be offered to women suffering from GF of HSCT. Case presentation: A 22-year-old woman with severe aplastic anemia who had suffered GF of allo-HSCT from her sibling brother [HLA allele match (7/10)] with a reduced dose conditioning regimen including fludarabine, cyclophosphamide, and antithymocyte globulin came to our reproductive center for fertility preservation, as she was about to receive the second allo-HSCT. We evaluated the ovarian reserve of this patient. Hormone assessments showed an anti-Müllerian hormone level of 3.921 ng/mL, a follicle-stimulating hormone level of 5.88 IU/L, a luteinizing hormone level of 10.79 IU/L, and an estradiol level of 33.34 pg/mL. Antral follicle counts accessed transvaginally showed 12-15 follicles. All assessments indicated a well-protected ovarian reserve. Due to the urgency of the second allo-HSCT, the patient decided to undergo ovarian cryopreservation. Laparoscopic surgery proceeded. Ovarian tissues were successfully cryopreserved using vitrification technology, and histologic evaluation demonstrated a follicle density of 20 per 2 × 2 mm2 biopsy with good viability. Four MII oocytes were obtained via in vitro maturation technology and cryopreserved. After the second HSCT, the patient relieved from aplastic anemia but suffered iatrogenic premature ovarian failure as predicted. Conclusion: OTC is applicable to fertility preservation in those undergoing GF of HSCT with benign hematological disorders and especially those who are about to receive the second HSCT.


Assuntos
Criopreservação , Preservação da Fertilidade , Transplante de Células-Tronco Hematopoéticas , Ovário , Feminino , Humanos , Adulto Jovem , Anemia Aplástica/complicações , Anemia Aplástica/terapia , Preservação da Fertilidade/métodos , Rejeição de Enxerto/etiologia , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Transplante de Células-Tronco Hematopoéticas/métodos , Reserva Ovariana , Ovário/patologia , Transplante Homólogo/efeitos adversos
13.
Food Chem ; 463(Pt 1): 141197, 2024 Sep 07.
Artigo em Inglês | MEDLINE | ID: mdl-39276690

RESUMO

Zein self-assembled nanoparticles (Z-NPs) are an excellent delivery carrier for bioactive components. However, the poor stability of its application in the food industry is the main problem. This paper focused on the self-assembly force of Z-NPs and the factors affecting the stability of Z-NPs. Meanwhile, the modification methods of zein and its interaction with food additives were analyzed. Additionally, its application in the field of food preservation was reviewed. The main interactions between zein and polyphenols encompass hydrogen bonding, non-covalent interactions, and hydrophobic interactions. Besides, the interactions with polysaccharides involve both covalent and non-covalent interactions. Furthermore, the protein interactions entail hydrophobic interactions, electrostatic interactions, hydrogen bonds, and π-π stacking. The primary driving forces governing zein self-assembly encompass electrostatic interactions, hydrogen bonding, van der Waals forces, hydrophobic interactions, and π-π stacking. Meanwhile, functionalized Z-NPs can be used in the food preservation industry to prolong the shelf life of food.

14.
Artigo em Inglês | MEDLINE | ID: mdl-39277819

RESUMO

OBJECTIVE: To analyze and improve the accuracy of preoperative assessment and intraoperative frozen-section analysis (FSA) for malignant ovarian germ cell tumors (MOGCTs), especially in the context of fertility preservation. METHODS: A retrospective review of 48 women aged under 40 years, diagnosed with MOGCTs, and treated at Chonnam National University Hospital between July and December 2022 was conducted. The results of preoperative magnetic resonance imaging (MRI), measurement of serum tumor markers (α-fetoprotein [AFP], ß-human chorionic gonadotropin, lactate dehydrogenase [LDH], cancer antigen [CA] 125, CA 19-9, CA 72-4, carcinoembryonic antigen), and intraoperative FSA were compared with the final pathology diagnosis. RESULTS: MRI demonstrated a sensitivity of 95.5%, whereas FSA showed a sensitivity of 72.9% for all MOGCTs. Sensitivities varied according to the subtype, but were consistently higher in MRI (100% for dysgerminoma, 88.9% for immature teratoma, 100% for endodermal sinus tumor, 100% for others). However, there were differences in FSA according to subtype (100% for dysgerminoma, 50.0% for immature teratoma, 100% for endodermal sinus tumor, 25.0% for others). Serum tumor markers also provided diagnostic insights, particularly LDH for dysgerminoma (82.4%) and AFP for immature teratoma (75.0%) and endodermal sinus tumor (100%). CONCLUSION: Preoperative MRI and serum tumor marker measurement may be effective in guiding fertility-sparing surgical decisions. MRI could outperform FSA in terms of accuracy, especially for immature teratoma.

15.
Int J Mol Sci ; 25(17)2024 Aug 28.
Artigo em Inglês | MEDLINE | ID: mdl-39273266

RESUMO

Liver transplantation remains the only definitive treatment for end-stage liver diseases. However, the increasing prevalence of fatty liver disease among potential donors exacerbates the shortage of suitable organs. This study evaluates the efficacy of the preservation solution Institut Georges Lopez-2 (IGL-2) compared to Histidine-Tryptophan-Ketoglutarate (HTK) and University of Wisconsin (UW) preservation solutions in mitigating ischemia-reperfusion injury (IRI) in steatotic livers. Using Zucker Obese rat livers, we assessed the impact of 24-h static cold storage (SCS) with each solution on transaminase release, glutathione redox balance, antioxidant enzyme activity, lipoperoxidation, and inflammation markers. IGL-2 and UW solutions demonstrated reduced transaminase and lactate levels compared to HTK, indicating better preservation of liver integrity. IGL-2 maintained a higher reduced glutathione/oxidized glutathione (GSH/GSSG) ratio, suggesting more effective management of oxidative stress. Antioxidant enzyme activities catalase, superoxide dismutase, and glutathione peroxidase (CAT, SOD, GPX) were higher in IGL-2 preserved livers, contributing to decreased oxidative damage. Lipid peroxidation markers and inflammatory markers were lower in IGL-2 than in HTK, indicating reduced oxidative stress and inflammation. Additionally, improved mitochondrial function was observed in the IGL-2 group, correlating with reduced reactive oxygen species (ROS) production and lipid peroxidation. These findings suggest that IGL-2 offers superior preservation of liver viability, reduces oxidative stress, and minimizes inflammation compared to HTK and UW solutions. By maintaining a higher ratio of reduced glutathione and antioxidant enzyme activity, IGL-2 effectively mitigates the harmful effects of ischemia-reperfusion injury. The reduced lipid peroxidation and inflammation in the IGL-2 group further underscore its potential in improving liver transplant outcomes. These results highlight the importance of optimizing preservation solutions to enhance the viability and functionality of donor organs, potentially expanding the donor pool and improving the success rates of liver transplantation. Future research should focus on refining preservation techniques and exploring additional protective agents to further improve organ preservation and transplant outcomes.


Assuntos
Adenosina , Alopurinol , Antioxidantes , Fígado Gorduroso , Insulina , Fígado , Soluções para Preservação de Órgãos , Procaína , Rafinose , Ratos Zucker , Traumatismo por Reperfusão , Animais , Soluções para Preservação de Órgãos/farmacologia , Ratos , Rafinose/farmacologia , Insulina/metabolismo , Adenosina/metabolismo , Adenosina/farmacologia , Fígado Gorduroso/metabolismo , Fígado Gorduroso/tratamento farmacológico , Fígado Gorduroso/patologia , Traumatismo por Reperfusão/metabolismo , Traumatismo por Reperfusão/tratamento farmacológico , Traumatismo por Reperfusão/prevenção & controle , Antioxidantes/farmacologia , Antioxidantes/metabolismo , Fígado/metabolismo , Fígado/efeitos dos fármacos , Fígado/patologia , Alopurinol/farmacologia , Masculino , Procaína/farmacologia , Inflamação/metabolismo , Inflamação/patologia , Inflamação/tratamento farmacológico , Glucose/metabolismo , Estresse Oxidativo/efeitos dos fármacos , Glutationa/metabolismo , Peroxidação de Lipídeos/efeitos dos fármacos , Manitol/farmacologia , Isquemia Fria/efeitos adversos , Cloreto de Potássio/farmacologia , Preservação de Órgãos/métodos , Transplante de Fígado/métodos
16.
Curr Oncol ; 31(9): 5233-5241, 2024 Sep 05.
Artigo em Inglês | MEDLINE | ID: mdl-39330015

RESUMO

(1) Background: The transglabellar approach, a type of transfacial technique, typically involves glabellar resection and opening the frontal sinus via a bicoronal incision, providing access to the anterior cranial vault. To prevent complications, the frontal sinus is typically obliterated. However, the success of transnasal endoscopic techniques has prompted a re-evaluation of these traditional methods. (2) Methods: This paper provides a brief literature review and discusses the removal of an elongated glioma of the left gyrus rectus (4.4 × 1.9 × 2.2 cm) in a 63-year-old male using a transglabellar subfrontal approach via a butterfly incision, with frontal sinus preservation. (3) Results: An uneventful gross-total resection of a WHO grade II oligodendroglioma was achieved. There is a paucity of literature describing a transglabellar subfrontal approach via a butterfly incision with frontal sinus preservation. (4) Conclusions: The described approach could be utilized in selected cases such as small intra-axial lesions oriented longitudinally along the inferomedial frontal lobe from the posterior wall of the frontal sinus to the anterior communicating artery complex in patients with pre-existing glabellar rhytids. Since this is merely a case presentation, we cannot conclude that this represents established clinical practice. The outcomes of this approach should be investigated in the future.


Assuntos
Neoplasias Encefálicas , Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias Encefálicas/cirurgia , Procedimentos Neurocirúrgicos/métodos
17.
Gels ; 10(9)2024 Aug 24.
Artigo em Inglês | MEDLINE | ID: mdl-39330151

RESUMO

This research investigates the effects of using edible gel coatings and bio-based packaging materials on extending the shelf life of cherry tomatoes. Two edible gel coatings (guar gum and guar gum +5% of a lemon (Citrus limon (L.) Osbeck pomace extract obtained in the research laboratory) were applied on cherry tomatoes, then they were packaged in bio-based materials (cellulose tray + PLA lid). Guar gum, glycerol, sorbitol, extra virgin olive oil, and tween 20 were used in coating formulation. Uncoated tomatoes packed in bio-based materials and conventional plastic (PET trays + lid) were tested as a control. Samples were stored for 45 days at 20 °C and their quality parameters were evaluated. Coated tomatoes maintained firmness and weight, and the enriched coated samples showed a significant increase in phenol content, derived from the antioxidant extract. Samples packed in PET showed a sensory unacceptability (<4.5) after 45 days correlated with a greater decline in firmness (from 10.51 to 5.96 N) and weight loss (from 7.06 to 11.02%). Therefore, edible gel coating and bio-based packaging proved to be effective in maintaining the overall quality of cherry tomatoes for 45 days, offering a promising approach to reduce plastic polymer use and food waste.

18.
Artigo em Inglês | MEDLINE | ID: mdl-39321867

RESUMO

OBJECTIVES: Hypothermic lung preservation at 10°C has recently shown to enhance quality of healthy donor lungs during ischemia. This study aims to show generalizability of the 10°C lung preservation using an endotoxin-induced lung injury with specific focus on the benefits of post-transplant lung function and mitochondrial preservation. METHODS: Lipopolysaccharide (3 mg/kg) was injected intratracheally in rats to induce lung injury. Injured lungs were flushed with preservation solution and allocated to 3 groups (n = 6 each): minimum cold storage, 6-hour storage on ice (Ice), and 6-hour storage at 10°C (10C). Left lungs were transplanted and reperfused for 2 hours. After storage, lung tissue was used to evaluate the effects of hypothermic storage on the mitochondrial function: mitochondrial membrane potential was assessed by JC-1 staining; mitochondrial oxygen consumption was assessed using high resolution respirometry. RESULTS: Two hours after reperfusion, the PO2/FiO2 ratio from the graft was significantly higher in the 10C group than in the Ice group (P = 0.015), while the wet-to-dry weight ratio was significantly lower (P = 0.041). Levels of interleukin-8 in lung tissues were significantly lower in the 10C group than in the Ice group (P = 0.004). Mechanistically, we noted higher mitochondrial membrane potential and elevated state III respiration in the 10C group than in the Ice group (P = 0.015 and P = 0.002, respectively), implying higher metabolic activities may be maintained during 10°C preservation. CONCLUSIONS: Favorable metabolism during 10°C preservation prevented ischemia-induced mitochondrial damages in injured lungs, leading to better post-transplant outcomes.

19.
Int J Surg Case Rep ; 123: 110259, 2024 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-39255731

RESUMO

INTRODUCTION: Fistula in ano is a complex disease, and the treatment for it is still a big challenge for surgeons because of the high recurrence rate (7 %-50 %) and incontinence, and to minimize these complications numerous surgical interventions are emerging daily in the conventional system of medicine. PRESENTATION OF CASE: A 48- year- old male patient came with complaints of pus discharge from an external opening in the inner aspect of his right thigh, located about 22 to 25 cm away from the anal verge for the last 15 years and was diagnosed as long extrasphincteric fistula with intrarectal opening based on clinical and MRI findings. We successfully treated this case with a minimally invasive novel surgical technique, RetroGrade Probing and Application of KharaSutra and Division of the Fistulous Tract (RGPAKS- DFT). DISCUSSION: Ksharasutra is a well-known method in the treatment of anal fistula for preserving continence and a low recurrence rate. Performing retrograde probing in every single case of anal fistula can address the involved anal gland under direct vision, which is essential for preventing recurrence and pairing retrograde probing with the division of the fistulous tract significantly reduces the treatment duration with minimal tissue loss. CONCLUSION: In fistula surgery, successful treatment relies on identifying the internal opening and eradicating the involved anal glands. Based on the same principle, this rare and complex anal fistula was effectively treated with this RGPAKS-DFT, resulting in no recurrence and incontinence in two years of follow-up after complete recovery.

20.
Clin Breast Cancer ; 2024 Sep 05.
Artigo em Inglês | MEDLINE | ID: mdl-39327216

RESUMO

INTRODUCTION: Many breast centers have adopted multidisciplinary tumor boards to discuss and develop treatment plans for patients diagnosed with breast cancer. This study aims to determine whether adding a fertility specialist to tumor board will improve fertility counseling and utilization in breast cancer patients METHODS: A retrospective study of reproductive age patients diagnosed with breast cancer between January 1, 2012, and January 31, 2020, before and after integrating a designated fertility specialist into a comprehensive multidisciplinary care (cMDC) tumor board. Rates of fertility counseling and preservation were assessed for patients treated before (pre-cMDC) and after (post-cMDC) tumor board enhancement. Associations of race/ethnicity, age, chemotherapy, hormone receptor status, insurance type, parity, stage, site of treatment, and home county with fertility care rates were assessed in the post-cMDC group. RESULTS: Of 306 patients diagnosed with breast cancer, 117 (38%) were in the pre-cMDC and 189 (62%) were in the post-cMDC tumor board group. Significantly more patients in the post-cMDC tumor board group were offered fertility counseling than patients in the pre-cMDC tumor board group (23.3% (44) vs. 0.9% (1); P < .001). However, rate of fertility preservation did not differ significantly between groups. CONCLUSION: Integrating a fertility specialist within a cMDC tumor board may help improve rates of fertility counseling among breast cancer patients but may not improve preservation rates.

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