1.Bubbling up consequences: severe gastric injury in a child after hydrogen peroxide ingestion: a case report
Ali YAZBACK ; Cory HOWARD ; Paolina PANTCHEVA ; Natalie M. REYES ; Robert K. WISER
Pediatric Emergency Medicine Journal 2026;13(1):40-44
We report a case of a previously healthy 9-year-old boy who presented to the emergency department following accidental ingestion of 35% hydrogen peroxide. He developed emesis and mild abdominal pain and was found to have extensive portal venous gas, severe gastric pneumatosis, and free intraperitoneal air on a computed tomography scan. He was transferred to an outside hospital for hyperbaric oxygen therapy, with no emergency surgical intervention indicated. This case highlights the dangers of ingesting even a small amount of concentrated hydrogen peroxide in children and underscores the safe storage practices at home.
2.Prevalence, risk factor, control and dwelling of Ascaridia galli in the gut of chickens
Khan N. ; Khan W. ; Ali W. ; Shoaib M. ; Anisuzzaman ; Abebe R. ; Chaves B.S. ; Vasconcelos V.S. ; Paludo R.L.R. ; Ramos D.G.S.
Tropical Biomedicine 2026;43(No. 2):151-158
Ascaridia galli infection compromises the health and productivity of chickens. this study aimed to
determine the prevalence, pathology, and control of A. galli in backyard chickens. Four hundred and
fifty-six faecal samples were tested using direct smear and concentration techniques. sixty chickens were
grouped based on egg per gram into untreated control, mebendazole-treated, and derivative-treated.
Key epidemiologic host based and environmental variables were recorded and analysed statistically
(p < 0.05 significance level). Histopathological changes in the intestine were also assessed. Overall
prevalence of A. galli was 72% (330/456). Infection was high in females (74%, 200/267) than in males
(68%, 130/189). Adult chickens had a higher infection rate than young (64% vs 55%; p < 0.05). Weak
chickens showed a markedly higher prevalence (96%, 150/156) than healthy chickens (60%, 180/300)
(p < 0.05). Geographically, prevalence was highest in Swat (85.53%), followed by Lower Dir (72.3%) and
Malakand (59.21%), with statistically significant differences (p < 0.05). Management system influenced
infection: free range chickens had (63%) compared to semi-free range (37%), scavenging chickens were
more infected (75%) compared to receiving supplemental feed (53%) (p < 0.05). The non-dewormed
chickens had a significantly higher prevalence (92%) than the dewormed group (20%) (p < 0.05).
Seasonal infection peaked during the rainy season (86%) compared to the dry season (44%) (p < 0.05).
Intestinal histology revealed inflammation, epithelial necrosis, villous atrophy, and crypt hyperplasia.
Treatment of the chickens nematodes using mebendazole resulted in 70% (14/20) of the treated eggs
being egg-negative, and the comparison of treatment of the egg-negative derivative compound resulted
in 80% (16/20) of the treated eggs being egg-negative. The A. galli infection are very common, and cause
intestine damage. The mebendazole and its derivative decrease egg shedding significantly, Husbandry,
management and treatment should be enhanced for effective control strategies.
3.Extra-Adrenal and Unexpected: A Rare Case of Primary Retroperitoneal Paraganglioma
Raja Nurul Azafirah Raja Amir Shah ; Masliza Hanuni Mohd Ali ; Wan Mohd Hafez Wan Hamzah ; Nor Hisham M
Journal of the ASEAN Federation of Endocrine Societies 2026;41(S1):66-
Introduction:
Paragangliomas are rare neuroendocrine tumors arising
from extra-adrenal chromaffin cells, with an estimated
incidence of 2–8 cases per million per year. These tumors
originate from neural crest–derived cells of the sympathetic
and parasympathetic paraganglia and may secrete
catecholamines, resulting in malignant hypertension or
symptoms such as headache, palpitations, and diaphoresis.
They can occur anywhere along the paravertebral and
para-aortic regions from the skull base to the pelvic floor.
Case:
We report a case of a 14-year-old male with no known
premorbid conditions who presented with presyncope
and a 1-month history of headache. On examination, he
had severe hypertension (242/167 mmHg), tachycardia
(127 bpm), and grade IV hypertensive retinopathy.
Investigations showed preserved renal function with
markedly elevated 24-hour urinary metanephrines
(normetanephrine 90.75 µmol/L). Computed tomography
revealed a lobulated, heterogeneously enhancing mass
measuring 5.0 × 6.1 × 5.4 cm along the left margin of the
abdominal aorta at the infrarenal level, suggestive of an
extra-adrenal lesion. Gallium-68 PET scan demonstrated
a somatostatin receptor–avid left peritoneal mass. The
patient underwent exploratory laparotomy and tumor
excision, complicated intraoperatively by blood pressure
lability requiring nitroprusside and inotropic support.
Postoperatively, he improved significantly and was able to
wean off all antihypertensive medications. Histopathology
confirmed left retroperitoneal paraganglioma.
Conclusion
Primary peritoneal paraganglioma is a rare but important
cause of secondary hypertension, especially in young
patients presenting with hypertensive emergency.
High index of suspicion is essential for early diagnosis.
Management requires a multidisciplinary approach
with careful preoperative optimization to minimize perioperative complications. Surgical resection remains the
definitive treatment and, as demonstrated in this case, can
result in marked clinical improvement with resolution
of hypertension.
Paraganglioma
4.Potential effect of endothelial progenitor cells on pentylenetetrazole-induced seizures in rats: an evaluation of relevant lncRNAs.
Shimaa O ALI ; Nancy N SHAHIN ; Marwa M SAFAR ; Sherine M RIZK
Journal of Zhejiang University. Science. B 2025;26(8):789-804
OBJECTIVES:
The use of stem cells is a promising strategy for seizure treatment owing to their unique characteristics. We investigated the role of endothelial progenitor cells (EPCs) in a pentylenetetrazole (PTZ)-induced rat seizure model. A selected panel of long noncoding RNAs (lncRNAs), which maintain an elaborate balance in brain neural regulatory networks as well as the autophagy pathway, was also targeted.
METHODS:
The impact of intravenously administered EPCs on PTZ-induced kindling in rats was evaluated by measuring the expression of neuronal damage markers, neurotrophic factors, and relevant lncRNA genes. Rat behavior was assessed using Y-maze test and open field test (OFT).
RESULTS:
EPCs mitigated seizure-associated neurological damage and reversed PTZ-induced working memory and locomotor activity deficits, as evidenced by improved performance in the Y-maze test and OFT. EPC treatment reversed the downregulation of the expression of the lncRNAs Evf2, Pnky, Dlx1, APF, HOTAIR, and FLJ11812. EPCs also boosted vascular endothelial growth factor (VEGF) expression. The ameliorative effect achieved by EPCs was comparable to that produced by valproate.
CONCLUSIONS
These findings indicate that EPCs ameliorate kindling epileptic seizures and their associated abnormalities and that the effect of EPCs may be mediated via the upregulation of certain regulatory lncRNAs.
Animals
;
Pentylenetetrazole
;
RNA, Long Noncoding
;
Seizures/therapy*
;
Rats
;
Male
;
Endothelial Progenitor Cells/transplantation*
;
Rats, Sprague-Dawley
;
Kindling, Neurologic
;
Vascular Endothelial Growth Factor A/metabolism*
;
Disease Models, Animal
5.Implantation of Islets Co-Seeded with Tregs in a Novel Biomaterial Reverses Diabetes in the NOD Mouse Model
Diana M. ELIZONDO ; Lais L. de Oliveira REKOWSKY ; Ayane de Sa RESENDE ; Jonathan SEENARINE ; Ricardo Luis Louzada da SILVA ; Jamel ALI ; Dazhi YANG ; Tatiana de MOURA ; Michael W. LIPSCOMB
Tissue Engineering and Regenerative Medicine 2025;22(1):43-55
Background:
Type 1 diabetes (T1D) results in autoreactive T cells chronically destroying pancreatic islets. This often results in irreplaceable loss of insulin-producing beta cells. To reverse course, a combinatorial strategy of employing glucose-responsive insulin restoration coupled with inhibiting autoreactive immune responses is required.
Methods:
Non-obese diabetic mice received a single intraperitoneal implantation of a novel biomaterial co-seeded with insulin-producing islets and T regulatory cells (Tregs). Controls included biomaterial seeded solely with islets, or biomaterial only groups. Mice were interrogated for changes in inflammation and diabetes progression via blood glucose monitoring, multiplex serum cytokine profiling, flow cytometry and immunohistochemistry assessments.
Results:
Islet and Tregs co-seeded biomaterial recipients had increased longevity, insulin secretion, and normoglycemia through 180 days post-implantation compared to controls. Serum profile revealed reduced TNFα, IFNγ, IL-1β and increased IL-10, insulin, C-Peptide, PP and PPY in recipients receiving co-seeded biomaterial. Evaluation of the resected co-seeded biomaterial revealed reduced infiltrating autoreactive CD8 + and CD4 + T cells concomitant with sustained presence of Foxp3 + Tregs; further analysis revealed that the few infiltrated resident effector CD4+ or CD8+ T cells were anergic, as measured by low levels of IFNγ and Granzyme-B upon stimulation when compared to controls. Interestingly, studies also revealed increased Tregs in the pancreas. However, there was no restoration of the pancreas beta cell compartment, suggesting normoglycemia and production of insulin levels were largely supported by the implanted co-seeded biomaterial.
Conclusion
These studies show the efficacy of a combinatorial approach seeding Tregs with pancreatic islets in a novel self-assembling organoid for reversing T1D.
6.Multi-modal management of aggressive vertebral hemangioma: A single center experience
Mohamed FAROUK ; Mohamed Ali KASSEM ; Ashraf EZZELDEIN ; Mohamed Mohsen AMEEN ; Ali Hassan ELMOKADEM ; Mohamed M ELSHERBINI
Journal of Cerebrovascular and Endovascular Neurosurgery 2025;27(1):40-49
Objective:
This study aims at spotlighting different lines of management of aggressive vertebral hemangioma (VH) through a retrospective analysis of single center experience.
Methods:
Patients diagnosed with aggressive VHs in a tertiary referral center were reviewed from 2014 through 2024. Data of patients who met the inclusion criteria were analyzed. Patients of all ages, both sexes, and all varieties of clinical presentation were included, only patients who underwent at least one intervention were included.
Results:
The study included nine patients, comprising six females and three males, with a mean age of 29.3 years (ranging from 14 to 46). Six patients underwent Trans-arterial embolization (TAE), of whom five underwent further surgical procedures, while one patient found TAE to be sufficient as a stand-alone management technique. Eight patients underwent surgical management, five of whom were pre-operatively embolized.
Conclusions
Aggressive VHs are rare, and their management is challenging. Most cases require a multi-modal management, especially when presented with neurological deficit. Pre-operative embolization and/or vertebroplasty are safe and useful tools to decrease intra-operative bleeding of such a vascular pathology in cases undergoing open surgical procedures.
7.Implantation of Islets Co-Seeded with Tregs in a Novel Biomaterial Reverses Diabetes in the NOD Mouse Model
Diana M. ELIZONDO ; Lais L. de Oliveira REKOWSKY ; Ayane de Sa RESENDE ; Jonathan SEENARINE ; Ricardo Luis Louzada da SILVA ; Jamel ALI ; Dazhi YANG ; Tatiana de MOURA ; Michael W. LIPSCOMB
Tissue Engineering and Regenerative Medicine 2025;22(1):43-55
Background:
Type 1 diabetes (T1D) results in autoreactive T cells chronically destroying pancreatic islets. This often results in irreplaceable loss of insulin-producing beta cells. To reverse course, a combinatorial strategy of employing glucose-responsive insulin restoration coupled with inhibiting autoreactive immune responses is required.
Methods:
Non-obese diabetic mice received a single intraperitoneal implantation of a novel biomaterial co-seeded with insulin-producing islets and T regulatory cells (Tregs). Controls included biomaterial seeded solely with islets, or biomaterial only groups. Mice were interrogated for changes in inflammation and diabetes progression via blood glucose monitoring, multiplex serum cytokine profiling, flow cytometry and immunohistochemistry assessments.
Results:
Islet and Tregs co-seeded biomaterial recipients had increased longevity, insulin secretion, and normoglycemia through 180 days post-implantation compared to controls. Serum profile revealed reduced TNFα, IFNγ, IL-1β and increased IL-10, insulin, C-Peptide, PP and PPY in recipients receiving co-seeded biomaterial. Evaluation of the resected co-seeded biomaterial revealed reduced infiltrating autoreactive CD8 + and CD4 + T cells concomitant with sustained presence of Foxp3 + Tregs; further analysis revealed that the few infiltrated resident effector CD4+ or CD8+ T cells were anergic, as measured by low levels of IFNγ and Granzyme-B upon stimulation when compared to controls. Interestingly, studies also revealed increased Tregs in the pancreas. However, there was no restoration of the pancreas beta cell compartment, suggesting normoglycemia and production of insulin levels were largely supported by the implanted co-seeded biomaterial.
Conclusion
These studies show the efficacy of a combinatorial approach seeding Tregs with pancreatic islets in a novel self-assembling organoid for reversing T1D.
8.Implantation of Islets Co-Seeded with Tregs in a Novel Biomaterial Reverses Diabetes in the NOD Mouse Model
Diana M. ELIZONDO ; Lais L. de Oliveira REKOWSKY ; Ayane de Sa RESENDE ; Jonathan SEENARINE ; Ricardo Luis Louzada da SILVA ; Jamel ALI ; Dazhi YANG ; Tatiana de MOURA ; Michael W. LIPSCOMB
Tissue Engineering and Regenerative Medicine 2025;22(1):43-55
Background:
Type 1 diabetes (T1D) results in autoreactive T cells chronically destroying pancreatic islets. This often results in irreplaceable loss of insulin-producing beta cells. To reverse course, a combinatorial strategy of employing glucose-responsive insulin restoration coupled with inhibiting autoreactive immune responses is required.
Methods:
Non-obese diabetic mice received a single intraperitoneal implantation of a novel biomaterial co-seeded with insulin-producing islets and T regulatory cells (Tregs). Controls included biomaterial seeded solely with islets, or biomaterial only groups. Mice were interrogated for changes in inflammation and diabetes progression via blood glucose monitoring, multiplex serum cytokine profiling, flow cytometry and immunohistochemistry assessments.
Results:
Islet and Tregs co-seeded biomaterial recipients had increased longevity, insulin secretion, and normoglycemia through 180 days post-implantation compared to controls. Serum profile revealed reduced TNFα, IFNγ, IL-1β and increased IL-10, insulin, C-Peptide, PP and PPY in recipients receiving co-seeded biomaterial. Evaluation of the resected co-seeded biomaterial revealed reduced infiltrating autoreactive CD8 + and CD4 + T cells concomitant with sustained presence of Foxp3 + Tregs; further analysis revealed that the few infiltrated resident effector CD4+ or CD8+ T cells were anergic, as measured by low levels of IFNγ and Granzyme-B upon stimulation when compared to controls. Interestingly, studies also revealed increased Tregs in the pancreas. However, there was no restoration of the pancreas beta cell compartment, suggesting normoglycemia and production of insulin levels were largely supported by the implanted co-seeded biomaterial.
Conclusion
These studies show the efficacy of a combinatorial approach seeding Tregs with pancreatic islets in a novel self-assembling organoid for reversing T1D.
9.Implantation of Islets Co-Seeded with Tregs in a Novel Biomaterial Reverses Diabetes in the NOD Mouse Model
Diana M. ELIZONDO ; Lais L. de Oliveira REKOWSKY ; Ayane de Sa RESENDE ; Jonathan SEENARINE ; Ricardo Luis Louzada da SILVA ; Jamel ALI ; Dazhi YANG ; Tatiana de MOURA ; Michael W. LIPSCOMB
Tissue Engineering and Regenerative Medicine 2025;22(1):43-55
Background:
Type 1 diabetes (T1D) results in autoreactive T cells chronically destroying pancreatic islets. This often results in irreplaceable loss of insulin-producing beta cells. To reverse course, a combinatorial strategy of employing glucose-responsive insulin restoration coupled with inhibiting autoreactive immune responses is required.
Methods:
Non-obese diabetic mice received a single intraperitoneal implantation of a novel biomaterial co-seeded with insulin-producing islets and T regulatory cells (Tregs). Controls included biomaterial seeded solely with islets, or biomaterial only groups. Mice were interrogated for changes in inflammation and diabetes progression via blood glucose monitoring, multiplex serum cytokine profiling, flow cytometry and immunohistochemistry assessments.
Results:
Islet and Tregs co-seeded biomaterial recipients had increased longevity, insulin secretion, and normoglycemia through 180 days post-implantation compared to controls. Serum profile revealed reduced TNFα, IFNγ, IL-1β and increased IL-10, insulin, C-Peptide, PP and PPY in recipients receiving co-seeded biomaterial. Evaluation of the resected co-seeded biomaterial revealed reduced infiltrating autoreactive CD8 + and CD4 + T cells concomitant with sustained presence of Foxp3 + Tregs; further analysis revealed that the few infiltrated resident effector CD4+ or CD8+ T cells were anergic, as measured by low levels of IFNγ and Granzyme-B upon stimulation when compared to controls. Interestingly, studies also revealed increased Tregs in the pancreas. However, there was no restoration of the pancreas beta cell compartment, suggesting normoglycemia and production of insulin levels were largely supported by the implanted co-seeded biomaterial.
Conclusion
These studies show the efficacy of a combinatorial approach seeding Tregs with pancreatic islets in a novel self-assembling organoid for reversing T1D.
10.Implantation of Islets Co-Seeded with Tregs in a Novel Biomaterial Reverses Diabetes in the NOD Mouse Model
Diana M. ELIZONDO ; Lais L. de Oliveira REKOWSKY ; Ayane de Sa RESENDE ; Jonathan SEENARINE ; Ricardo Luis Louzada da SILVA ; Jamel ALI ; Dazhi YANG ; Tatiana de MOURA ; Michael W. LIPSCOMB
Tissue Engineering and Regenerative Medicine 2025;22(1):43-55
Background:
Type 1 diabetes (T1D) results in autoreactive T cells chronically destroying pancreatic islets. This often results in irreplaceable loss of insulin-producing beta cells. To reverse course, a combinatorial strategy of employing glucose-responsive insulin restoration coupled with inhibiting autoreactive immune responses is required.
Methods:
Non-obese diabetic mice received a single intraperitoneal implantation of a novel biomaterial co-seeded with insulin-producing islets and T regulatory cells (Tregs). Controls included biomaterial seeded solely with islets, or biomaterial only groups. Mice were interrogated for changes in inflammation and diabetes progression via blood glucose monitoring, multiplex serum cytokine profiling, flow cytometry and immunohistochemistry assessments.
Results:
Islet and Tregs co-seeded biomaterial recipients had increased longevity, insulin secretion, and normoglycemia through 180 days post-implantation compared to controls. Serum profile revealed reduced TNFα, IFNγ, IL-1β and increased IL-10, insulin, C-Peptide, PP and PPY in recipients receiving co-seeded biomaterial. Evaluation of the resected co-seeded biomaterial revealed reduced infiltrating autoreactive CD8 + and CD4 + T cells concomitant with sustained presence of Foxp3 + Tregs; further analysis revealed that the few infiltrated resident effector CD4+ or CD8+ T cells were anergic, as measured by low levels of IFNγ and Granzyme-B upon stimulation when compared to controls. Interestingly, studies also revealed increased Tregs in the pancreas. However, there was no restoration of the pancreas beta cell compartment, suggesting normoglycemia and production of insulin levels were largely supported by the implanted co-seeded biomaterial.
Conclusion
These studies show the efficacy of a combinatorial approach seeding Tregs with pancreatic islets in a novel self-assembling organoid for reversing T1D.


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