12 research outputs found
Multi-therapies in androgenetic alopecia: review and clinical experiences.
Androgenetic alopecia (AGA) is a genetically determined progressive hair-loss condition
which represents the most common cause of hair loss in men. The use of the medical term
androgenetic alopecia reflects current knowledge about the important role of androgens and genetic
factors in its etiology. In addition to androgen-dependent changes in the hair cycle, sustained
microscopic follicular inflammation contributes to its onset. Furthermore, Prostaglandins have been
demonstrated to have the ability in modulating hair follicle cycle; in particular, PGD2 inhibits hair
growth while PGE2/F2a promote growth. Due to the progressive nature of AGA, the treatment should
be started early and continued indefinitely, since the benefit will not be maintained upon ceasing
therapy. To date, only two therapeutic agents have been approved by the Food and Drug
Administration and European Medicines Agency for the treatment of AGA: topical minoxidil and oral
finasteride. Considering the many pathogenetic mechanisms involved in AGA, various treatment
options are available: topical and systemic drugs may be used and the choice depends on various
factors including grading of AGA, patients’ pathological conditions, practicability, costs and risks. So,
the treatment for AGA should be based on personalized therapy and targeted at the different
pathophysiological aspects of AG
Dermoscopy and methyl aminolevulinate: A study for detection and evaluation of field cancerization
Actinic keratosis (AK) is a keratinocyte intraepidermal neoplasia UV light
–
induced that frequently appears in
sun-exposed areas of the skin. Although historically AK was de
fi
ned as
“
precancerous
”
, actually it is considered
as the earliest stage of squamous cell carcinoma (SCC) in situ. Since AKs can progress into invasive SCC, their
treatment isrecommended. AKsrarely developasa singlelesion;usually multiplelesions commonly affect anen-
tire area of chronically actinic damaged skin. This has led to the concept of
“
fi
eld cancerization
”
, an area chroni-
cally sun-exposed that surrounds peripherally visible lesions, in which are individualized subclinical alterations.
One of the main principles endpoint in the management of AKs is the evaluation and the treatment of
fi
eld
cancerization. In this view, in order to detect and quantify
fi
eld cancerization, we employed a method based
on the topical application of methyl aminolevulinate (MAL) and the detection of the
fl
uorescence emitted by
its metabolite Protoporphyrin IX (PpIX); then, considering the extension and the intensity of measured
fl
uores-
cence, we create a score of
fi
eld cancerization. The results show that patients underwent to daylight PDT had a
reduction of total score, from T0 to T2. Whereas in the group untreated we observed a stability of total score or
a slightly worse. So, the method and the score used allows to evaluate with a good approximation the dimension
of
fi
eld cancerization and show the modi
fi
cation of it after treatment
Face and scalp basal cell carcinoma treatment: A review of the literature
Basal cell carcinoma (BCC) is the most frequent skin cancer and is characterized by slow growth, even if it can be locally invasive and rarely metastasizes. Many different phenotypic presentations and histopathologic subtypes have been described, and the current guidelines subdivide BCCs into low-risk (nodular and superficial) and high-risk subtypes (micronodular, infiltrating, and morphoeic BCC and those with squamous differentiation). Dermoscopy allows the identification of the features associated with these different subtypes. Compared with the low-risk forms of BCC, more aggressive ones tend to undergo more frequently incomplete surgical excision and perineural invasion, so the identification of these lesions before surgery is extremely important. The gold standard of treatment is surgery, particularly for the H region of the face and infiltrative lesions, but other options are available and selected according to many variables, including body area, age, comorbidities, and clinical, dermoscopic, and histopathological features of the lesion. Moreover, the possible complications of surgical approaches, namely healing defects, failure of skin grafts, and wound infection, should be considered. In this review we discuss the management of BCC localized on the face and scalp, according to the currently available treatment options. </p
Therapeutic Options for the Treatment of Actinic Keratosis with Scalp and Face Localization
Actinic keratosis (AK) is a common skin disease related
to ultraviolet chronic exposure, that is now considered a
squamous cell carcinoma in situ. Primary skin cancer prevention
strategies should be recommended for high risk patients. There
is a wide spectrum of treatment options available for AKs, and
several variables should be taken into account regarding the best
therapeutic choice for each patient. The purpose of this article is
to review the current treatment strategies for AKs localized on
the face and scalp, with a focus on the practical point of view that
could be useful for choosing the best therapeutic option. The two
main therapeutic approaches will be distinguished first: lesiondirected
and field-directed. Afterwards, the treatment based on
clinical type and patient comorbidity will be discussed
Therapeutic Options for the Treatment of Actinic Keratosis with Scalp and Face Localization
Actinic keratosis (AK) is a common skin disease related to ultraviolet chronic exposure, that is now considered a
squamous cell carcinoma in situ. Primary skin cancer prevention
strategies should be recommended for high risk patients. There
is a wide spectrum of treatment options available for AKs, and
several variables should be taken into account regarding the best
therapeutic choice for each patient. The purpose of this article is
to review the current treatment strategies for AKs localized on
the face and scalp, with a focus on the practical point of view that
could be useful for choosing the best therapeutic option. The two
main therapeutic approaches will be distinguished first: lesiondirected and field-directed. Afterwards, the treatment based on
clinical type and patient comorbidity will be discussed
The LANDSUPPORT geospatial decision support system (S-DSS) vision: Operational tools to implement sustainability policies in land planning and management
Nowadays, there is contrasting evidence between the ongoing continuing and widespread environmental degradation and the many means to implement environmental sustainability actions starting from good policies (e.g. EU New Green Deal, CAP), powerful technologies (e.g. new satellites, drones, IoT sensors), large databases and large stakeholder engagement (e.g. EIP-AGRI, living labs). Here, we argue that to tackle the above contrasting issues dealing with land degradation, it is very much required to develop and use friendly and freely available web-based operational tools to support both the implementation of environmental and agriculture policies and enable to take positive environmental sustainability actions by all stakeholders. Our solution is the S-DSS LANDSUPPORT platform, consisting of a free web-based smart Geospatial CyberInfrastructure containing 15 macro-tools (and more than 100 elementary tools), co-designed with different types of stakeholders and their different needs, dealing with sustainability in agriculture, forestry and spatial planning. LANDSUPPORT condenses many features into one system, the main ones of which were (i) Web-GIS facilities, connection with (ii) satellite data, (iii) Earth Critical Zone data and (iv) climate datasets including climate change and weather forecast data, (v) data cube technology enabling us to read/write when dealing with very large datasets (e.g. daily climatic data obtained in real time for any region in Europe), (vi) a large set of static and dynamic modelling engines (e.g. crop growth, water balance, rural integrity, etc.) allowing uncertainty analysis and what if modelling and (vii) HPC (both CPU and GPU) to run simulation modelling 'on-the-fly' in real time. Two case studies (a third case is reported in the Supplementary materials), with their results and stats, covering different regions and spatial extents and using three distinct operational tools all connected to lower land degradation processes (Crop growth, Machine Learning Forest Simulator and GeOC), are featured in this paper to highlight the platform's functioning. Landsupport is used by a large community of stakeholders and will remain operational, open and free long after the project ends. This position is rooted in the evidence showing that we need to leave these tools as open as possible and engage as much as possible with a large community of users to protect soils and land
Reviving vacuum-dried encapsulated ram spermatozoa via ICSI after 2 years of storage
Introduction: Freeze-drying techniques give alternative preservation mammalian spermatozoa without liquid nitrogen. However, most of the work has been conducted in the laboratory mouse, while little information has been gathered on large animals that could also benefit from this kind of storage. Methods: This work adapted a technique known as vacuum-drying encapsulation (VDE), originally developed for nucleic acid conservation in anhydrous state, to ram spermatozoa, and compared it to canonical lyophilization (FD), testing long-term storage at room temperature (RT) and 4°C. Results and discussion: The results demonstrated better structural stability, namely lipid composition and DNA integrity, in VDE spermatozoa than FD ones, with outcomes at RT storage comparable to 4°C. Likewise, in VDE the embryonic development was higher than in FD samples (12.8% vs. 8.7%, p < 0.001, respectively). Our findings indicated that in large mammals, it is important to consider dehydration-related changes in sperm polyunsaturated fatty acids coupled with DNA alterations, given their crucial role in embryonic development
Ingenol mebutate therapy in erythroplasia of Queyrat: a new approach
Background: Erythroplasia of Queyrat (EQ) is a rare squamous cell carcinoma in situ, usually occurring on the glans penis, the prepuce, or the urethral meatus. Therapy is mandatory because it can progress to invasive carcinoma in up to 30% of cases. Treatment options include 5-fluorouracil, curettage, cryotherapy, radiotherapy, laser, partial or total penectomy, and microsurgery, as also with imiquimod and photodynamic therapies. Methods: Between 2015 to 2018 we treated five patients, with histologically confirmed EQ, with ingenol mebutate (IM) 0.015% gel applied for 3 days consecutively. Results: Three patients showed complete response at one year follow up. Two patients showed partial response after two months, so they received a second course of therapy with IM. At one-year follow-up, one of them showed complete response, the other partial response. Conclusions: Our experience demonstrated that IM may be considered as an effective and safe treatment option in EQ. IM offers various advantages such as easy and fast application, rapid complete remission, better compliance, few side effects and excellent cosmetical results. The authors call for further exploitation in bigger trials