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1.
J Cosmet Dermatol ; 23(2): 614-621, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37991104

RESUMO

BACKGROUND: The implantation of artificial hair is a successful standardized procedure to restore bald areas or scarred alopecic surfaces of the scalp in both sexes. MATERIALS AND METHODS: Sebometric measurements were taken, pre, 1, 3, and 6 months postimplant in two symmetric frontotemporal areas of the scalp of seven volunteers to be implanted with 50 units of artificial hair. The artificial hair used in this study are Biofibre 4.0 produced by Medicap srl, Italy. RESULTS: The dermaroller assisted procedure was performed only on one side, and the plain random implant contralaterally for comparison. A marked downregulation of the sebum concentration was observed in the dermaroller treated area 1, 3, and 6 months later in respect to the control side. CONCLUSION: The dermaroller assisted procedure is safe and effective in reducing the foreign body reaction by the sebaceous glands and the vascular axis injured by the implanting needle; a longer standing success of the implanted hair can thus be achieved reducing the burden of inflammatory reaction.


Assuntos
Alopecia , Cabelo , Masculino , Feminino , Humanos , Alopecia/etiologia , Alopecia/cirurgia , Glândulas Sebáceas , Sebo , Couro Cabeludo/cirurgia
2.
Skin Res Technol ; 29(8): e13422, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-37632188

RESUMO

OBJECTIVE: Skin laxity and wrinkling are common signs of the aging process. This physiological condition of the skin is often accompanied by psychological and social concerns, especially for females, entailing considerable expenses for cosmetics and pharmaceuticals to cease or slow down its advancement. The objective of this study was to evaluate the short-term impact of a new non-ablative radiofrequency device available in the skin face cosmetic field. METHODS: A randomized study was run on 62 healthy subjects with normal-age related-grade skin laxity, subdivided into two groups. Group 1 received one treatment with Modula RF device (Wavemed, San Cesareo RM, Italy) over the whole face surface. Group 2 received three monthly treatments. RESULTS: Clinical improvements of the exposed areas were detected by measuring skin parameters, such as total water content, elasticity, and sebum levels at baseline and 1 h after the treatment. Data showed significant effects of Med-RF treatment on skin hydration (p < 0.001), skin elasticity (p < 0.0001), and sebum (p = 0.0009). Moreover, a negative linear correlation was obtained between women's age and hydration. CONCLUSION: In conclusion, the results of this study suggest that radiofrequency significantly improves the subjective and objective judgment of patients and doctors, supported by the positive results obtained on the skin quality parameters evaluated. These results confirm that Med-RF technology represents an important tool to achieve face rejuvenation in the field of non-invasive procedures.


Assuntos
Rejuvenescimento , Pele , Feminino , Humanos , Elasticidade , Face , Voluntários Saudáveis
3.
J Immunol Res ; 2022: 2502199, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36249418

RESUMO

Aim: Several studies emphasized the antiviral properties of many natural compounds enclosed in nutraceuticals formulas and quite effective to prevent the respiratory infections. The rationale of our investigation has been to achieve protection from common cold viruses' infection of the upper airways pooling together and dispensing different active principles on a multistep defense basis. Material and Methods. 30 patients affected by sudden aspecific viral-induced sore throat rhinitis were divided in two groups: (1) the first group included 15 patients which were administered with our spray formula and (2) the second group included 15 patients with the commercial nasal lavage kit. The mucous smear was stained with May Grunwald-Giemsa to exclude eosinophilic infiltrate and confirm the prevalence of granulocytes and lympho-monocytes typical of viral seasonal inflammatory upper airways conditions. Results: The symptomatic relieve is remarkedly evident in the treated group with our spray compared to the second group treated with commercial nasal lavage kit. Conclusions: The open case-control retrospective observational study showed a definite benefit of the spray based on natural herbal extracts to take control of the upper airways respiratory distress due to viral infections.


Assuntos
Infecções Respiratórias , Rinite , Viroses , Antivirais/uso terapêutico , Método Duplo-Cego , Humanos , Infecções Respiratórias/prevenção & controle , Viroses/prevenção & controle
4.
J Immunol Res ; 2022: 4593598, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35528612

RESUMO

Aim: We report an open spontaneous anecdotical retrospective survey of Corynebacterium parvum administration to 4000 fragile immune-depressed and multimorbid patients treated with a killed C. parvum strain to enhance innate immunity, integrating the adaptative immune response for long-standing antinfectious resistance. Methods: A total of 4000 patients (1900 men and 2100 women) with mild, moderate, or chronic disease, appealing to our Second Opinion Medical Consultation Network, signed an informed consent form and were injected subcutaneously with C. parvum. The treatment was followed up to 6 months, completing the short form of the medical outcome health survey questionnaire (SF-36) directly by the patients or their parents and monitoring their health status regularly via telemedicine (Skype, WhatsApp, mail, etc.) or outpatients visits. Results: The main efficacy endpoints, as assessed by the SF-36 questionnaire are: significant improvements in the mental and physical role functioning score (p < 0.02), better general health; social role performance (p < 0.02), vitality (p < 0.03), and a significant pain reduction (p < 0.03). A quick (48-72 hours) symptoms improvement and/or complete regression of the herpetic eruptions was observed in 1000 affected patients with disappearance or relieve of herpetic neuralgia (reduced in 80% of cases); also full recovery or frequency reduction (30%) of recurrent cystitis and prostatitis in 120 affected patients. Last but not least, a life quality improvement in 100 oncologic patients of overall 200 cases. A significant increase in the lymphocyte count (p < 0.01), mainly helper and killer lymphocytes, was noted 6 months after Parvulan injection vs. the baseline. The asymptomatic SARS-CoV-2 patients who were incidentally enrolled in our survey were tested at the sixth month for antibodies against SARS-CoV-2, and 14 patients had high levels of SARS-CoV-2 antibodies. The incubating COVID infections of the Parvulan-injected patients even if frail and multimorbid recovered in short term (48-96 hours) with a benign clinical course, without need of drugs administration except for the variants, such as Delta and Omicron, whose infections lasted on average one week and required some antipyretics and low-dose steroids for a few days. Conclusions: Our results confirm that C. parvum is quite safe and effective in supporting immune-compromised patients when epidemic or pandemic events increase the life risk and any kind of infection and complication rate. Further double-blind placebo evidence-based studies are urgently required, and our numerically substantial not sponsored spontaneous observation is exclusively intended to promote further evidence-based double-blind institutional studies.


Assuntos
COVID-19 , Feminino , Humanos , Imunidade Inata , Masculino , Pandemias , Estudos Retrospectivos , SARS-CoV-2 , Resultado do Tratamento
5.
Lasers Med Sci ; 37(7): 2831-2835, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-35435595

RESUMO

Chronic venous insufficiency has a high impact on the healthcare system due to its high incidence worldwide. We performed a study in 30 women with thigh and leg varices due to major saphenous vein valve incontinence with saphenous trunk reflux causing phlebo-lymphoedema to assess the efficacy of sclerofoam-assisted laser treatment combined with nutraceutical administration. The patients underwent endovascular combination sealing of the saphenous trunk with sclerofoam-assisted laser treatment technique into the major saphenous veins under low-volume tumescent anesthesia followed by intraoperative phlebectomies. Post-operatively, the patients received capsules containing Aesculus Hippocastanum, chondroitin sulphate, proanthocyanidins from Pinus pinaster Aiton, proanthocyanidins from Vitis vinifera L., hydrolysed marine collagen and carcinine dihydrochloride for 3 weeks. We evaluated the extracellular fluid volume of the lower limbs using bioimpedance spectroscopy pre- (T0) and post-surgery (T2) (impedance is a vector which is composed of two components, resistance [RES] and reactance [REA)]). In addition, we evaluated the following parameters pre- and post-surgery: pain, heaviness, paresthesia, itching, swelling, daily urine volume output and leg volume. Limb volume was significantly decreased at T2 compared to T0 (p < 0.01). RES and REA were significantly increased at T2 compared to T0 (p < 0.0001 and p < 0.01, respectively). A significant improvement in heaviness, paresthesia, pain, swelling and itch was also observed (all p < 0.0001) while no changes in terms of diuresis occurred. No adverse effects were observed. The present study shows a promising approach to the treatment of chronic venous insufficiency that warrants further clinical studies in larger cohorts of patients.


Assuntos
Proantocianidinas , Varizes , Insuficiência Venosa , Suplementos Nutricionais , Feminino , Humanos , Dor , Parestesia , Veia Safena/cirurgia , Resultado do Tratamento , Insuficiência Venosa/cirurgia
7.
Hum Vaccin Immunother ; 17(6): 1604-1606, 2021 06 03.
Artigo em Inglês | MEDLINE | ID: mdl-33435808

RESUMO

The innate immune system, through pattern recognition receptors, intercepts any kind of pathogen and reacts through chemotactic, phagocyting, cytokines-secreting and cell-killing mechanisms in a very quick and effective way. Meanwhile, the adaptive immunity arm, through dendritic and T and B cells memory activation, is alerted and starts, more slowly, to produce antibodies, seen thanks to the progress of immunological investigations in comparative vertebrates, invertebrates, and vegetal models.However, it has been stated that the innate immune system also displays adaptive potential in terms of reinfection resistance through immune memory, in addition to the modulation of responses against repeated low doses of lipopolysaccharides (Lps) or cross-immunization, starting from one pathogenic species and extending to others.


Assuntos
Evolução Biológica , Imunidade Inata , Memória Imunológica , Imunidade Adaptativa , Animais , Linfócitos B/imunologia , Linfócitos T/imunologia
8.
Rev Environ Health ; 36(3): 319-326, 2021 Sep 27.
Artigo em Inglês | MEDLINE | ID: mdl-33070122

RESUMO

Multiple chemical sensitivity (MCS) is characterised by non-specific and recurring symptoms affecting multiple organs and associated with exposure to chemicals, even at low concentrations, which are, under normal circumstances, harmless to the general population. Symptoms include general discomfort, cardiovascular instability, irritation of the sensory organs, breath disorders, hypersensitivity affecting the skin and epithelial lining of the gut, throat and lungs, anxiety, and learning and memory loss. Chemical intolerance is a key distinguishing feature of MCS, limiting considerably patients' lifestyle with serious social, occupational and economic implications. Since no specific diagnostic markers are currently available for chemical intolerance, the diagnosis relies on clinical symptoms. Despite the formulation of several hypotheses regarding the pathophysiology of MCS, its mechanisms remain undefined. A person-centred care approach, based on multidisciplinary and individualised medical plans, has shown promising results. However, more definite treatment strategies are required. We have reviewed the main experimental studies on MCS pathophysiology, focusing on the brain networks involved, the impact of environmental pollution on the olfactory system and the correlation with other pathologies such as neurodegenerative diseases. Finally, we discuss treatment strategies targeting the olfactory system.


Assuntos
Sensibilidade Química Múltipla , Animais , Encéfalo , Poluição Ambiental/efeitos adversos , Humanos , Inativação Metabólica , Sensibilidade Química Múltipla/diagnóstico , Sensibilidade Química Múltipla/etiologia , Sensibilidade Química Múltipla/metabolismo , Sensibilidade Química Múltipla/fisiopatologia , Transtornos do Olfato/genética , Condutos Olfatórios , Sensação
9.
Vaccine ; 38(48): 7581-7584, 2020 11 10.
Artigo em Inglês | MEDLINE | ID: mdl-33071005

RESUMO

Today, Coronavirus Disease 2019 (COVID-19) is a global public health emergency and vaccination measures to counter its diffusion are deemed necessary. Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), the etiological agent of the disease, unleashes a T-helper 2 immune response in those patients requiring intensive care. Here, we illustrate the immunological mechanism to train the immune system towards a more effective and less symptomatic T-helper 1 immune response, to be exploited against SARS-CoV-2.


Assuntos
Vacina BCG/administração & dosagem , Vacinas Bacterianas/administração & dosagem , Betacoronavirus/imunologia , Infecções por Coronavirus/prevenção & controle , Imunidade Inata/efeitos dos fármacos , Pandemias/prevenção & controle , Pneumonia Viral/prevenção & controle , Propionibacteriaceae/imunologia , Betacoronavirus/efeitos dos fármacos , Betacoronavirus/patogenicidade , COVID-19 , Vacinas contra COVID-19 , Infecções por Coronavirus/epidemiologia , Infecções por Coronavirus/imunologia , Infecções por Coronavirus/virologia , Corynebacterium , Humanos , Esquemas de Imunização , Imunogenicidade da Vacina , Interleucinas/genética , Interleucinas/imunologia , Segurança do Paciente , Pneumonia Viral/epidemiologia , Pneumonia Viral/imunologia , Pneumonia Viral/virologia , SARS-CoV-2 , Células Th1/efeitos dos fármacos , Células Th1/imunologia , Células Th1/virologia , Equilíbrio Th1-Th2/efeitos dos fármacos , Células Th2/efeitos dos fármacos , Células Th2/imunologia , Células Th2/virologia , Vacinação , Vacinas Virais/administração & dosagem , Vacinas Virais/biossíntese
10.
Nucl Med Commun ; 41(12): 1275-1282, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-32897935

RESUMO

AIM: The aim of this study was to evaluate brain glucose metabolism by means of [18F]-fluoro-deoxygluycose (F-FDG) PET in a group of patients presenting dysautonomic syndrome after human papilloma virus (HPV) immunization. METHODS: Medical records of patients, referred to the 'Second Opinion Medical Consulting Network' Medical Centre (Modena, Italy) diagnosed with dysautonomic syndrome were searched. Inclusion criteria were presence in the medical history of adverse drug reactions following HPV vaccine; a Montreal Cognitive Assessment score <25 and good quality of a F-FDG-PET brain scan performed within 12 months from the diagnosis of dysautonomic syndrome. F-FDG-PET images of patients (HPV-group) were compared to a control group, matched for age and sex, using statistical parametric mapping (SPM). RESULTS: The F-FDG-PET study was available for five female patients. The SPM-group analysis revealed significant hypometabolism (P < 0.05 false discovery rate corrected) in the right superior and medial temporal gyrus (Brodmann areas 22, 21) and insula (Brodmann area 13). At a threshold of P < 0.001 (uncorrected), further hypometabolic regions were revealed in the right superior temporal gyrus (Brodmann area 42) and caudate head and in the left superior temporal gyrus (Brodmann area 22), frontal subcallosal gyrus (Brodmann area 47) and insula (Brodmann area 13). Relative hypermetabolism (P = 0.001) was revealed in the right premotor cortex (Brodmann area 6). CONCLUSION: This study revealed the possibility of altered brain glucose metabolism in subjects with dysautonomic syndrome post-immunization with HPV vaccine. These results could reinforce the hypothesis of a causal relationship between HPV vaccine, or some component included in the vaccine and the development of clinical manifestations.


Assuntos
Doenças do Sistema Nervoso Autônomo/etiologia , Doenças do Sistema Nervoso Autônomo/metabolismo , Encéfalo/diagnóstico por imagem , Encéfalo/metabolismo , Fluordesoxiglucose F18 , Vacinas contra Papillomavirus/efeitos adversos , Tomografia por Emissão de Pósitrons , Adulto , Doenças do Sistema Nervoso Autônomo/diagnóstico por imagem , Feminino , Glucose/metabolismo , Humanos , Masculino , Pessoa de Meia-Idade
11.
Int J Clin Pract ; 74(11): e13612, 2020 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-32668490

RESUMO

AIM OF THE STUDY: We designed a retrospective, monocentric, observational study to assess the efficacy and short-term side effect profile of desmopressin, a synthetic analogue of antidiuretic hormone, in 42 elderly patients affected by nocturnal polyuria (NP), a subset of nocturia (nocturnal overproduction of urine at night), which is characterised by nocturnal urine volume (NVU) exceeding 33% of the 24-hours total urine output. METHODS USED TO CONDUCT THE STUDY: The subjects had NP and included 25 males, which had benign prostatic hyperplasia (12 out of 25 had been surgically or endoscopically operated) and 15 females that had increased urinary frequency, night-time voiding, loss of bladder control and recurrent bladder infections, due to perineal wall weakness and vaginal or bladder prolapse. Patients recorded the number of voids during waking hours using a digital continuous urine meter. The quality of life (QoL) and efficacy of desmopressin were assessed at baseline and 12 weeks after treatment using the International Consultation on Incontinence Questionnaire Nocturia Quality of Life Module (ICIQ-Nqol) and International Prostate Symptom Score questionnaire (IPPS-Q8). The dosage of desmopressin acetate varied according to the discretion of the physician, usually beginning with one tablet before going to bed at night for 3 months. The dose was increased at 1-week intervals if a reduction in the NVU or night-time frequency was not achieved. RESULTS OF THE STUDY: We found that desmopressin treatment reduced the nocturnal voided volume (P < .0001), ICIQ-Nqol (P < .0001) and IPPS-Q8 (P < .0001). No significant serum sodium alterations or modifications in serum creatine, potassium, or body weight were observed in all the patients. No adverse effects were observed. CONCLUSIONS DRAWN FROM THE STUDY AND CLINICAL IMPLICATIONS: Our findings show efficacy of desmopressin in the elderly for NP treatment supporting further clinical trials in larger cohorts of patients.


Assuntos
Desamino Arginina Vasopressina , Noctúria , Idoso , Antidiuréticos/uso terapêutico , Desamino Arginina Vasopressina/uso terapêutico , Feminino , Humanos , Masculino , Noctúria/tratamento farmacológico , Poliúria/tratamento farmacológico , Qualidade de Vida , Estudos Retrospectivos
12.
J Wound Care ; 29(7): 408-418, 2020 Jul 02.
Artigo em Inglês | MEDLINE | ID: mdl-32654604

RESUMO

Wound healing is the sum of physiological sequential steps, leading to skin restoration. However, in some conditions, such as diabetes, pressure ulcers (PU) and venous legs ulcers (VLU), healing is a major challenge and requires multiple strategies. In this context, some electromedical devices may accelerate and/or support wound healing, modulating the inflammatory, proliferation (granulation) and tissue-remodelling phases. This review describes some helpful electromedical devices including: ultrasonic-assisted wound debridement; electrotherapy; combined ultrasound and electric field stimulation; low-frequency pulsed electromagnetic fields; phototherapy (for example, laser therapy and light-emitting diode (LED) therapy); biophotonic therapies, and pressure therapies (for example, negative pressure wound therapy, and high pressure and intermittent pneumatic compression) The review focuses on the evidence-based medicine and adequate clinical trial design in relation to these devices.


Assuntos
Tratamento de Ferimentos com Pressão Negativa/instrumentação , Lesão por Pressão/terapia , Humanos , Cicatrização
14.
Int J Dermatol ; 59(7): 763-769, 2020 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-32441324

RESUMO

BACKGROUND: Tumor-infiltrating lymphocytes (TILs) are B, T-helper, and T-cytotoxic lymphocytes migrated from the blood or lymph stream toward a tumor with the aim to infiltrate and destroy it. They can be histologically graded as brisk, nonbrisk, or absent. Malignant melanoma has been the first malignancy found to be correlated with TILs status, being brisk TILs associated with better clinical outcomes. By the terminology of "adoptive cell transfer" (ACT), the medical oncology refers to the transfer of cells in a tumor-bearing patient from the same recipient or a healthy donor. METHODS: A PubMed literature search on the topic has been performed. Additional documents known to the authors and identified from the reference list of cited publications have been included. RESULTS: In the past, autologous TILs ACT was successfully tested for the treatment of malignant melanoma and, today, it is a standardized procedure in several centers around the world. It represents the first research step toward the bioengineered chimeric antigen receptor T (CAR-T) cell therapy from autologous donor. CONCLUSIONS: Both autologous TILs ACT and CAR-T cell therapy from autologous donor exploit the anticancer power of targeted self-lymphocytes, but CAR-T cell technology also virtually allows treatment of those melanomas devoid of TILs or with so few cytotoxic TILs that are difficult to identify.


Assuntos
Imunoterapia Adotiva , Linfócitos do Interstício Tumoral/transplante , Melanoma/terapia , Receptores de Antígenos Quiméricos , Neoplasias Cutâneas/terapia , Humanos , Imunoterapia Adotiva/efeitos adversos , Transplante Autólogo
15.
J Med Virol ; 92(11): 2429-2439, 2020 11.
Artigo em Inglês | MEDLINE | ID: mdl-32472706

RESUMO

We report a review of all the experimental and clinical studies performed in the last 60 years on the antiviral activity of inactivated Corynebacterium parvum (Cutibacterium acnes). This bacterium has been originally investigated and used for its oncolytic properties linked to immunomodulating activity, but the interest to successfully prevent and treat bacterial, fungal, and viral infections and lethality, uprising the innate immunity barriers produced many experimental models and very few clinical studies. The dramatic defenseless situation due to impending CoViD-19 pandemic claims to exhume and highlight this aspecific strategy in preventive and therapeutic settings; as a matter of fact, no new or mutated virus can potentially escape to this strong innate immune surveillance strengthened by adequate C. parvum protocols.


Assuntos
Imunidade Inata , Fatores Imunológicos/administração & dosagem , Vigilância Imunológica , Propionibacterium acnes/imunologia , Viroses/imunologia , Viroses/terapia , Animais , COVID-19/prevenção & controle , Ensaios Clínicos como Assunto , Humanos , Fatores Imunológicos/uso terapêutico , Viroses/prevenção & controle
17.
Minerva Gastroenterol Dietol ; 66(4): 307-320, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-33443240

RESUMO

BACKGROUND: The nonalcoholic fat liver disease (NAFLD) progresses in 30% of the patients to not alcoholic steatohepatitis (NASH) and subsequently in liver fibrosis and even primary cancer and death. Due to the complex physiopathology of the liver steatosis, NASH is an area orphan of specific drugs, but many authors suggest an integrated treatment based upon diet, lifestyle change, and pharmacology. METHODS: Our clinical study selected from a wider patient cohort, 13 subjects, appealing to the Second Opinion Medical Consulting Network, for liver and nutritional problems. The diet was integrated with regular prescription of an herbal derivative based on Chrysanthellum americanum and Pistacia lentiscus L. extracts. Clinical data of the recruited patients including body weight, Body Mass Index, were recorded before and after treatment. Each patient underwent pre-post accurate clinical examination and lab exams. The liver stiffness and liver steatosis were evaluated by a trained hepatologist with FibroScan®. RESULTS: A significant reduction of anthropometric parameters was detected in all the patients at the end of the study; liver fibrosis and steatosis were instrumentally decreased in 8 subjects, but not significant changes in lab exams and no adverse effects were reported. CONCLUSIONS: Chrysanthellum americanum and Pistacia lentiscus L. extracts were absolutely safe and effective and gave a substantial contribution to the life quality benefit, metabolic balance and gut function in patients with hepatic steatosis.


Assuntos
Suplementos Nutricionais , Fígado Gorduroso/dietoterapia , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Guias de Prática Clínica como Assunto
18.
Front Oncol ; 10: 528624, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33585180

RESUMO

OBJECTIVE: The primary aim of this review is to verify whether the warning against the use of electromedical instruments in the cosmetic professional or medical cancer patient settings is consistent with evident oncological risks supported by experimental in vitro/in vivo studies or anecdotal clinical reports, or any other reasonable statement. METHODS: MEDLINE, PubMed, Embase, AMED, Ovid, Cochrane Controlled Trials Register, and Google Scholar databases were electronically searched. Data relating to research design, sample population, type of electro-cosmetic devices used, were extracted. RESULTS: The search strategy identified 50 studies, 30 of which were potentially relevant. CONCLUSIONS: Our research is in favor of moderate periodical use of cosmetic medical devices in patients bearing tumors, in any stage, like in healthy people. Special consideration is dedicated to massage, manipulation, and pressure delivery upon the cytoskeleton of cancer cells that has proven to be sensitive to mechanical stress at least in some specific locally relapsing cancers such as osteosarcoma.

20.
J Wound Care ; 28(10): 683-693, 2019 Oct 02.
Artigo em Inglês | MEDLINE | ID: mdl-31600106

RESUMO

Nutrition can be outlined in terms of epigenetic signals influencing each of the wound healing steps (haemostasis, inflammatory, proliferative and remodelling phase). Specific nutrients, such as amino acids, minerals, vitamins, natural compounds and herbal extracts, target DNA-regulating transcription factors, cytokines, extracellular matrix proteins and glycosaminoglycan, and are specifically involved in the wound healing process. This review focuses on experimental in vivo and clinical evidence of dietary supplements administration in pressure ulcers. A good nutritional status is, for example, fundamental to the haemostasis phase of skin wounds. In the inflammatory phase, vitamin A enhances cytokine release, bromelain and amino acids prevent prolonged inflammatory events, while vitamin C enhances neutrophil migration and lymphocyte activation. In the proliferative phase, vitamin C and Centella asiatica are required for collagen synthesis. Glucosamine enhances hyaluronic acid production, vitamin A promotes epithelial cell differentiation, zinc is required for DNA and protein synthesis and cell division, and Aloe vera supports granulation tissue generation. Finally, in the remodelling phase, amino acids and proteins play a key role in wound scar stabilisation.


Assuntos
Suplementos Nutricionais , Estado Nutricional , Lesão por Pressão , Cicatrização , Humanos
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