Natalia Krześniak

ORCID: 0000-0002-3608-3472
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About
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Research Areas
  • Mesenchymal stem cell research
  • Lymphatic System and Diseases
  • Pluripotent Stem Cells Research
  • Reconstructive Surgery and Microvascular Techniques
  • Peripheral Nerve Disorders
  • Orthopedic Surgery and Rehabilitation
  • Skin and Cellular Biology Research
  • Wnt/β-catenin signaling in development and cancer
  • Pancreatitis Pathology and Treatment
  • melanin and skin pigmentation
  • Dermatological and Skeletal Disorders
  • Nerve Injury and Rehabilitation
  • Diagnosis and Treatment of Venous Diseases
  • Wound Healing and Treatments
  • Tissue Engineering and Regenerative Medicine
  • Tendon Structure and Treatment
  • Body Contouring and Surgery
  • Colorectal Cancer Surgical Treatments
  • Myofascial pain diagnosis and treatment
  • Ocular Diseases and Behçet’s Syndrome
  • Breast Implant and Reconstruction
  • Silk-based biomaterials and applications
  • Effects of Vibration on Health
  • Facial Rejuvenation and Surgery Techniques
  • Polish Law and Legal System

Postgraduate School of Molecular Medicine
2011-2025

Chang Gung University
2024

Chang Gung Memorial Hospital
2024

Memorial Hospital
2024

Medical University of Lublin
2023

Medical University of Warsaw
2023

University Clinical Centre
2023

Central Clinical Hospital
2023

Memorial Hospital
2015

Grochowski Hospital
2013

ABSTRACT The Charles procedure (CP) is a potentially devastating treatment; however, in cases of an end stage untreated or improperly treated lymphedema, it the ultimate surgical therapy. As life‐saving solution, quickly relieves patients with giant, hypertrophic extremities, mostly ambulation and hygiene maintenance. Nevertheless, long‐term results may disappoint both doctors patients, who struggle social stigma, need for lifelong compression, massive lymphoedema distal parts feet, badly...

10.1002/micr.70015 article EN cc-by-nc-nd Microsurgery 2025-01-01

Introduction: Upper limb lymphedema is the most common complication after breast cancer therapy. Suddenly disturbed lymphatic transport in affected arm causes tissue fluid accumulation spaces, enlargement, and secondary changes tissue. Early compression therapy necessary. We aim to evaluate effectiveness of intermittent pneumatic (IPC) movement along possibility creating compensatory drainage pathways. Methods Results: investigated 25 patients with Breast Cancer Related Lymphedema (BCRL)...

10.1089/lrb.2024.0061 article EN Lymphatic Research and Biology 2025-01-27

Currently, the number of stem-cell based experimental therapies in neurological injuries and neurodegenerative disorders has been massively increasing. Despite fact that we still have not obtained strong evidence mesenchymal stem/stromal cells' neurogenic effectiveness vivo, research may need to focus on more appropriate sources result therapeutically promising cell populations. In this study, used dedifferentiated fat cells (DFAT) are proven demonstrate pluripotent abilities comparison with...

10.3390/cells10061475 article EN cc-by Cells 2021-06-11

Background: Carpal tunnel release is the gold standard for treatment of median nerve compression disease. Recurrent or persistent symptoms do not occur in most patients, although a small number them have indicated that such postoperative condition indeed exists. Some patients undergo repeated treatments. In majority cases, disease associated with scarring carpal even reformation ligament. The authors propose usage autologous fat grafting during secondary to inhibit process. Methods: Ten...

10.1097/gox.0000000000000374 article EN cc-by-nc-nd Plastic & Reconstructive Surgery Global Open 2015-05-01

Objective/Purpose. Evaluation of efficacy and safety autologous adipose-derived regenerative cells (ADRCs) treatment in autoimmune refractory epilepsy. Patients. Six patients with proven or probable epilepsy (2 Rasmussen encephalitis, 2 antineuronal autoantibodies serum, possible FIRES) were included the project approval Bioethics Committee.Intrathecal injection ADRC acquired through liposuction followed by enzymatic isolation was performed. The procedure repeated 3 times every months each...

10.1155/2020/7104243 article EN cc-by Stem Cells International 2020-01-03

The development of an effective method melanocyte isolation and culture is necessary for basic clinical studies concerning skin diseases, including pigmentation disorders melanoma. In this paper, we describe a novel, non-enzymatic metastatic melanoma cell (along with the spontaneous spheroid creation) from or lymph node explants. based on selective harvesting melanocytes cells emigrating cultured Thereby, isolated retain their natural phenotypical features, such as expression tyrosinase...

10.3390/cancers13246244 article EN Cancers 2021-12-13

Stem cells (SCs) may constitute a perspective alternative to pharmacological treatment in neurodegenerative diseases. Although the safety of SC transplantation has been widely shown, their clinical efficiency amyotrophic lateral sclerosis (ALS) is still be proved. It not only due limited number studies, small groups, and fast but nonlinear disease progression also lack objective methods able show subtle changes. Preliminary guidelines for cell therapy have recently proposed by group ALS...

10.1155/2018/4392017 article EN cc-by Stem Cells International 2018-08-12

ABCA4 gene mutations are the cause of a spectrum retinopathies, and most common juvenile macular degeneration is called Stargardt disease. has previously been observed almost exclusively in retina. Therefore, studying functional consequences variants required advanced molecular analysis techniques. The aim present study was to evaluate whether human hair follicles may be used for splice-site patients with retinopathies. We assessed expression skin at mRNA protein levels by means real-time...

10.3390/ijms21103430 article EN International Journal of Molecular Sciences 2020-05-13

The reconstruction of nerve continuity after traumatic injury is the gold standard in hand surgery. Immediate, tension-free, end-to-end suture ensures best prognosis. recovery mostly promising; however, a few cases, insufficient outcomes motor or sensory function are observed. Intra- and extra-fascicular scarring accompanies regeneration process limits final outcomes. Secondary release those cases recommended. Unfortunately, recurrence cannot be eliminated secondary revision neurolysis....

10.4103/1673-5374.297081 article EN cc-by-nc-sa Neural Regeneration Research 2020-11-20

Introduction: In advanced lymphedema of lower limbs, stage III bandaging under the routinely applied pressure 40–60 mmHg remains largely ineffective. This is caused by skin and subcutaneous tissue stiffness due to fibrosis. Edema fluid accumulates deep in tissue. Evacuating this requires a high external compression force overcome resistance fibrous We aimed investigate effectiveness method, with lasting for 3 days.

10.1089/lrb.2023.0064 article EN Lymphatic Research and Biology 2024-04-08

A universal classification of the negative outcomes carpal tunnel release surgery does not, as yet, exist. In order to avoid use arbitrary factors we have applied Accordion Severity Grading System, which uses rigorously defined qualitative terms classify complications. It also provides a uniform manner for grading severity complications, enabling outcome comparisons between centres. We analysed 500 device-assisted releases performed over 2-year period in author's department. establish...

10.1016/j.bjps.2013.04.016 article EN cc-by-nc-nd Journal of Plastic Reconstructive & Aesthetic Surgery 2013-05-10

Background: Lipedema of lower limbs is characterized by bilateral accumulations excess adipose tissue starting from the ankle to hips and buttocks. The studies with lymphoscintigraphy (LSC) magnetic resonance (MR) lymphography show altered transport index enlarged lymphatic vessels (LVs). Our aimed investigate superficial lymph flow, water accumulation, skin subcutaneous elasticity, possibility using this information diagnose lipedema. Methods Results: Fifty patients lipedema 50 control...

10.1089/lrb.2022.0010 article EN Lymphatic Research and Biology 2022-06-08

The epidermis forms the barrier between an organism and its external environment. Although one of major functional elements is lipid-enriched extracellular matrix, containing mainly ceramides, cholesterol (CHOL) free fatty acids, data are limited regarding lipid profile in epidermis. aim study was to determine whole acids (FAs) examine any dependence according age subject site on epidermis.Epidermis extracts obtained from 10 adults 6 children were analyzed by gas chromatography-mass...

10.18388/abp.2020_6131 article EN cc-by Acta Biochimica Polonica 2022-09-13

Ten-eleven translocation (TET) enzymes catalyze the oxidation of 5-methylcytosine (5mC), first to 5-hydroxymethylcytosine (5hmC), then 5-formylcytosine (5fC), and finally 5-carboxycytosine (5caC). Evidence suggests that changes in TET expression may impact cell function phenotype aging. Proliferation, apoptosis, markers autophagy double-strand DNA break repair, Fibulin 5 were assessed by flow cytometry TET1 TET2-overexpressing fibroblasts isolated from sun-unexposed skin young (23-35 years)...

10.3390/biomedicines11061659 article EN cc-by Biomedicines 2023-06-07

Introduction: Lymph flows along the lymphatics due to spontaneous contraction. However, injury and inflammation may deteriorate lymphatic' s endothelial muscle cells valves. In consequence, lymphatic vessels (LVs) become insufficient. Their contraction strength rate slow down, then lymph flow stops. Our study aimed investigate changes in early lymphedema cases. Methods Results: 36 patients with unilateral stages 0 I, we performed indocyanine green (ICG) lymphography, lymphoscintigraphy, skin...

10.1089/lrb.2023.0008 article EN Lymphatic Research and Biology 2023-08-11

Colon anastomosis is therapeutically challenging because multiple, usually undetectable factors influence a spectrum of repair mechanisms. We hypothesized that low molecular weight heparins, routinely administered perioperatively, may differentially affect gene expression related to colon healing. Twenty pairs untreated and enoxaparin-treated rats underwent left-side hemicolectomy with primary end-to-end anastomosis. Normal anastomotic bowel segments were resected on day 0 days 1, 3, 5, 7...

10.18388/abp.2011_2289 article EN cc-by Acta Biochimica Polonica 2011-03-18

Abstract The application of mesenchymal stem/stromal cells (MSC) in regenerative medicine offers hope for the effective treatment incurable or difficult‐to‐heal diseases. However, it requires development unified protocols both safe and efficient cell acquisition clinical usage. therapeutic effect fat grafts (containing stem cells) non‐healing wounds has been discussed previous studies, although local general anaesthesia. MSC derived from adipose tissue (ASC) could be a less invasive method,...

10.1111/wrr.13013 article EN Wound Repair and Regeneration 2022-04-05

Transplantation of autogenic adipose tissue by means the suction technique “anesthesia with edema”, has been for past years one most engaged currents contemporary plastic surgery. It is directly associated two issues described below. The first discovery peripheral fat progenitor cells characterized their in vitro plasticity (1). These are now referred to as Adipose Derived Stromal Cells (ADSC), being subjected culture differentiation different tissues, such fat, cartilage, bone, or neural...

10.2478/pjs-2013-0113 article EN Polish Journal of Surgery 2013-01-01

In this publication we describe three techniques for endoscopic carpal tunnel release which use the palmar portal approach and superficial plane to enable a view from above transverse ligament. These prevent any iatrogenic compression of median nerve inside already narrow tunnel. Although necessary instruments are inexpensive recommended in instrumentation catalogues, their has rarely been reported. safe easy learn surgeons familiar with arthroscopy. We believe that they constitute an...

10.5114/wiitm.2014.41632 article EN cc-by-nc-sa Videosurgery and Other Miniinvasive Techniques 2014-03-24

BACKGROUND: The modified version of the Clavien-Dindo classification complications has been renamed Accordion Severity Grading System.1 Since its introduction it received international acceptance in various surgical specialties. However, never used aesthetic surgery. System enables a simple assessment and comparison outcomes between procedures centres. We propose using surgery to provide common language for research discussion where real can be distinguished from failures, or as...

10.1097/01.prs.0000455485.79464.9c article EN Plastic & Reconstructive Surgery 2014-09-26

The ABCA4 gene encodes an ATP-binding cassette transporter that is expressed specifically in the disc of photoreceptor outer segments. Mutations are main cause retinal degenerations known as “ABCA4-retinopathies.” Recent research has revealed other cells well, such hair follicles and keratinocytes, although no information on its significance been evidenced so far. In this study, we investigated role human keratinocytes follicle stem for first time. We have shown silencing increases...

10.3390/ijms24098275 article EN International Journal of Molecular Sciences 2023-05-05

Lower limb trauma often results in mangled extremities, and some cases, complete amputation may be necessary. However, limiting the extent of preserving major knee joint are crucial to enhance mobility overall functionality. By providing painless soft tissue coverage on stump, early prosthesis use initiation physiotherapy become more feasible. Soft transfers hold potential benefit patients two essential aspects: first, resolving deficiencies without causing bone shortening, second, preparing...

10.3390/jpm14020160 article EN Journal of Personalized Medicine 2024-01-30
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